JPS59500601A - closed drug release system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] closed drug release system Filed in the name of Steven and Pearson as agent document symbol B M-1205 The title “sterile campling” was published, and the Filed under the name “Mixing Device” under attorney document symbol BM-1206 There are two good luck applications.

Both applications are assigned to the assignee of this invention.

No need for the main launch team! member Many drugs are mixed with a diluent before being delivered intravenously to the patient. Diluted solution may be, for example, a dextrose solution, saline or just water. many of them Drugs such as are supplied in powder form and packaged in glass vials. chemistry Other drugs, such as those used in therapy, are in liquid form and packaged in glass vials. be done.

Powdered drugs are a well-known form of injection, in which a liquid is injected into a vial for mixing. The syringe eventually aspirates the mixed solution from the vial. . When a drug must be diluted before being released to the patient, it is often It is often injected into a container of diluent, in which case the container is used as part of the administration set for release to the patient. You can connect to More specifically, the diluent may be in a glass bottle or Travelol Laboratories, Inc., Deerfield, Neu. Flexible bags sold under the names Minibag and Viaflex by Packaged in a plastic container. These containers release their contents from the container into the patient. It has a dosing boat for connection to the dosing set. The drug is typically in a container is added to the container through the upper injection site.

Drugs can be packaged separately from diluents for a variety of reasons. one of the most important reasons One is that some drugs may not maintain their effectiveness when mixed with diluents, so It cannot be stored for a long period of time. In some cases, the drug and diluent are separated for a significant period of time. It will not continue to mix.

Also, many companies that manufacture drugs offer medical fluids in containers for intravenous release. The drug is packaged separately from the diluent because it is not in the business.

Therefore, a doctor, nurse, pharmacist or other health care professional should mix the drug and the diluent. There must be. This presents a number of problems.

The time consumption of the restore operation. Operator prepares appropriate diluent and syringe before starting Must. Powdered drugs often cake at the bottom of the vial. this Contact table between liquid and powder drug when injecting liquid from a syringe into a vial The area is initially quite small, which makes the mixing operation more time consuming. limited availability Due to the volume of the vial, the increasing drug concentration in the diluent will delay the completion of the reconstitution process. make it difficult. The operator repeatedly injects the solution into the vial, mixes and And you can try to solve this by aspirating the solution, but However, this requires extra injections and syringe movements, thereby increasing the possibility of contamination. Increase your ability. Also, do not let all of the drug and/or liquid out of the vial. It is often difficult, thereby increasing the time required to perform the restore operation.

The reconstitution operation must preferably be carried out under aseptic conditions. operator Justifiably more careful and more time consuming such In addition to the requirements, sterility is often difficult to maintain. In some cases, A laminar flow hood under which the restoration operation is carried out may be required.

Certain drugs are toxic, such as certain chemotherapeutic agents.

Operator exposure to reconstituted core drugs is limited if the operator routinely uses such drugs. It is especially dangerous if you work with and are repeatedly exposed to agents.

Yet another problem is that the diluent container does not hold the drug injected into it, or at least The restore operation must be labeled with the name of the patient for which the data is to be derived. This provides a source of confusion as to which drugs the device contains.

that a closed system for separate storage of drug and diluent would be most beneficial I understand. However, until recently, various factors have made commercially viable and justified had prevented such closure systems on a cheap basis. For drugs and diluents It is difficult to manufacture closed systems with separate, selectively communicating compartments. One factor that made it difficult was sterilization. - For example, flexible plastic containers If so, the container containing the diluent should be steam sterilized or autoclaved. Therefore, it is sterilized. However, the heat generated during such sterilization operations is It will even destroy the effectiveness of the drug. On the other hand, like the use of ethylene oxide gas Other sterilization methods do not harm the drug, but the diluent. Drugs and diluents are sterilized separately and the two components are stored separately after sterilization in separate compartments. At the same time as this application, a system for combining in a single container with ``STERILIZER'' in the name of William Schnell, filed and assigned to the assignee of this invention. United States Patent No. AO-1200 titled “Liquid Mixing System” shown in the request.

These considerations are important unless there is a means to protect the drug and diluent during the various sterilization steps. The system combines separate drug and diluent containers after they have been sterilized separately. requires that it be configured by This is a sterile connection between two containers requires the production of Sterile connections may be made by e.g. National Patent No. 4゜157.723, No. 4,265,280 and April 1979 No. 027,575, filed and allowed on the 6th. This is well known. The connectors disclosed therein are highly reliable and sterile. Provide connectivity. However, they require separate radiant energy to form the connection. energy source and thus a power source to operate the energy source.

Other requirements for such a closed system include the removal of powder medicine from the container containing the diluent Water vapor transmission into the container containing the agent must be prevented.

As previously discussed, certain powdered drugs may be Destroying drug effectiveness.

Finally, such a closed system facilitates easy and thorough mixing of drug and diluent. It must be constructed in such a way that it

Mokkyukai■Career The present invention stores two components, such as a drug and a diluent, separately under sterile conditions, and By providing a closed system for accurate and efficient mixing, solve. The present invention provides a closed system that allows the use of drug vials of standard configuration. provide

The present invention provides selective gas trapping compartments and reservoir compartment mem- bers. The present invention relates to a compressible chamber containing in open communication with a component. like a diluent A first component, a sterile liquid, is contained in the chamber. Separate like drug vials The container contains a second component, such as a drug. the container and the compressible chamber; At least one of the bars contains a sterile gas, such as sterile air. The present invention means for accessing the body-trapping compartment adjacent to the chamber; and means for accessing the container.

A junction is provided surrounding at least a terminal portion of each access means.

The mating maintains the ends of the access means in a sterile, spaced relationship.

One of the access means connects the access means and connects the container and the chamber. selectively removing said conjugate to establish a sterile passage through said access means during It has an element that can be pierced. After a sterile passageway has been established in a closed system, the gas The trap and reservoir compartments provide easy and complete mixing of the two mixture components. can be selectively located to facilitate assembly.

The drug in the container may be solid or liquid. Preferably the zygote has two access hands. Plastic material injection molded around the end of the step.

The invention also provides for the aseptic selection of two components stored separately in said closed system. Provides a method for selective mixing. The method involves using a piercing element to establish a sterile passageway. Pierce the zygote with After entering the container, it is transferred through a sterile passageway into the container, and some of the liquid in the container is removed under pressure. This involves replacing some of the liquid in the collapsible chamber. This fluid exchange , the liquid in the gas trap compartment is adjacent to the chamber access means; and the chamber access means is above the gas trap compartment. Manipulate the chamber until the chamber is compressed and confined in the container by each forcing some of the liquid from the chamber into the container so as to compress the air Finally, the compression is stopped, causing the air above the liquid in the container to expand. by a process that allows some of the liquid to be expelled from the container into the chamber Established.

This liquid exchange involves filling a container with a liquid that has a relatively low concentration of drug mixed into it. Repeatedly introduce contact to facilitate proper mixing with remaining drug inside. allowed to enter.

Finally, the method charges the liquid in the container for release of the now mixed components to the patient. including the step of emptying it into a chamber. This emptying process chamber until some of the air in the gas trap compartment enters the gas trap compartment. By rotating the gas tank, the air in the 7p compartment is accessed through the chamber. Rotate the chamber back until it is close, and then some of the air enters the chamber. The chamber is compressed so that the air in the container is forced out into the container, and the air in the container is forced into the container. This is done by stopping the compression so that the liquid in the vessel is forced back into the chamber. .

Same blood ■ Degai FIG. 1 is a perspective view of the closure system.

2 is a perspective view of the compressible chamber visible in FIG. 1; FIG.

FIG. 3A is a cross-sectional view taken along line 3A-3A of FIG.

FIG. 3B is an enlarged partial cross-sectional view of the retaining tube and cannula that can be ruptured. Ru.

Figure 4 is a partial schematic of the closure system under construction, rotated 90° for ease of illustration on the drawing. It is a schematic side view.

FIG. 5 is a partially sectional front view of the system shown in FIG. 1 during construction.

Figure 6 is a partial cross-section of the sterile coupling used in the closure system illustrated in Figure 1. It is a diagram.

FIG. 7 is a partial cross-sectional view of the closure system illustrating the establishment of a sterile passageway.

FIG. 8 is the view shown in FIG. 7 illustrating the open fracture cannula.

FIG. 9 is a partially cut away front view illustrating liquid transfer.

FIG. 10 is a partially cut away front view illustrating liquid exchange.

Figures 11, 12A and 12B show the process of transferring liquid from the container to the chamber. FIG. 3 is a front view of the container illustrating the

FIG. 13 illustrates another embodiment of a sterile camp ring.

FIG. 14 illustrates yet another embodiment of a sterile coupling.

Figures 15 and 16 are the same as in Figure 14 before and after establishment of the sterile path, respectively. FIG. 2 is a partial cross-sectional view of a sterile coupling.

Naishitan's 06= Referring to FIGS. 1-3, a closure system 20 is seen in FIG. compression A compressible chamber 22 is provided around the compressible chamber 22. flexible plastic sheets 2 sealed together to form an outer seal 28 It can be made from 4.26. The plastic sheets 24, 26 are made of e.g. The outer seal 28 may be made of a vinyl chloride material, and the outer seal 28 may be made of, for example, a heat shield. It can be a seal or a radio frequency (RF) seal. Compressible chamber 2 2 includes a storage compartment 30 and a compartment mechanism for selectively trapping gas. 32. The reservoir and gas trap compartments 30.32 are closed. It is partially bounded by an inner wall 34 having a chain end 36 and an open end 38. Inside Wall 34 is made by heat sealing or RF sealing two flexible plastic sheets. It can be formed by Inner wall 34 as an extension of outer seal 28 Good too. The open end 38 of the inner wall 38 has a wide round seal 40 for increased strength. can be done.

The inner wall 34 includes a gas trap and a gas trap along the length of the inner wall 34 and at the closed end 36. 32.30. The inner wall 34 is around the open end 38. Form an open flow path 42 between the gas trap and storage tank converter 32.30. to be accomplished.

Outer seal 28 and inner wall 34 form a compressible chamber in a preferred embodiment. -22 is generally given a 5-shape. The storage compartment 30 has long legs with a figure 5 shape. , and the gas trap compartment 32 corresponds to the short leg of the figure 5 shape. Ru. An inner wall 34 separates the long and short legs.

Access means 44 to the compressible channel; located adjacent to the component 32. In a preferred embodiment, the access means It includes a needle 46, which may be of standard construction, mounted on a plastic needle hub 48. Chan The bar access means 44 may be made of plastic, such as may be made of polyvinyl chloride material. It further includes a flexible sleeve 50. Sleeve 50 has a first end 56 thereof. The needle hub 42 can be adhered to the needle hub 42 by conventional means such as solvent adhesive. Chan Bar access means 44 is adhered to sleeve 50 at second end 58 of the sleeve. and further includes a membrane 52 closing the same. The membrane 52 has an annular rib 54. Contains. Membrane 52 may also be a plastic material.

A first end 56 of the sleeve 50 is secured within a hollow end 60 of a rupturable cannula 62. be done. Such breakable cannules are known and e.g. U.S. Pat. No. 4.18L140, No. 4,294,27, assigned to Assignee of the Invention. No. 4 and Allowed U.S. Patent Application No. 086.1 filed October 18, 1979. It can be configured as shown in No. 02. See Figures 3A and 3B. As shown, one or more breakable cannula 62 is located in the side wall 68 of the retaining member 64. can be housed in a hollow retaining member 66 having two or more openings 66. and the opening is located near the top of the short leg of the 3-shaped compressible chamber 22. It is location. The breakable cannula 62 includes a breakable portion 72 that includes a fin. 73 and selectively breaking from the hollow end 60 at the weakened portion 70. Can be done.

As best seen in Figures 1 and 3B, the outer seal 28 is on the side of the retaining member 64. formed around wall 68. If an RF seal is used, the retaining member 6 40 sidewall 68 to the plastic sheet 24.26 and breaks upon application of an RF source. It will simultaneously be sealed to the hollow end 60 of the cannula 62.

Compressible chamber 22 is filled with water, dextrose solution, or saline solution. A first component 74, which may be a bacterial dilution solution, is contained. Other diluents are of course possible.

This closure system preferably consists of a flexible plastic sheet 24, 26 It includes suspension means such as an aperture 98 provided therein. The compressible chamber 22 is , preferably connected to an administration set (not shown) for delivery into the patient's venous system. includes a boat 100 that can be selectively opened.

Referring to FIGS. 1 and 6, the connector 76 is connected to the chamber access means 44. It surrounds the end 78. In a preferred embodiment, assembly 76 is injection molded. Made of plastic material.

Connector 76 connects chamber access means 44 to container 80 .

Container 80 contains a second component 82, such as a powder or liquid medicament.

In a preferred embodiment, container 80 is a standard construction glass vial; This allows for the replacement of other such standard vials without the need to re-stampe new drug containers. allows introduction of the drug into the closed system 20 from a source. Container 80 is the When the drug vial is of standard construction, it typically has a rubber stopper 84 and Container 80 includes a metal hand 86 around a mouth 88, and the metal band 86 has a rubber stopper. 84 is held in container 80. The rubber stopper 84 and the metal hand 86 are both a container. 80 constitutes access means 90. Chamber accessories as described later. Either the access means 44 or the container access means 90 are constrained to the particular structure described herein. It is not limited (but rather can include a wide range of structures).

Container 80 extends from flexible plastic sheet 24 and has an odor at end 94. and then heat-sealed the flap 92 to the other flexible plastic sheet 26. It can be held loosely.

A plastic pouch 96 can be placed around the container 80.

The plastic pouch 96 is made of polyolefin against which the container 80 can easily slide. It can be made of material. Polyolefin material flexible plastic sheet 24.26 can be made with it, for example, with a lower coefficient of friction than polyvinyl chloride. have a number.

The closure system 20 includes a compressible chamber 22 and a container 80 within each. It can be produced by sterilizing the flavors separately and then combining them. for example, After filling the device 102 seen in FIG. 2 with the first component, it is made of polypropylene. It can be placed in a closed bag (not shown) of plastic material such as. Device 102 then sterilizes the interior of compressible chamber 22 and first component 74 Therefore, it can be sterilized by autoclaving. The device 102 is then removed from the bag. 4, the flexible plastic sheet 24 and flap 92 are placed on top. It is preferably placed on a horizontal surface 103 in the work area so as to face. Figure 4 is It has been rotated 90 degrees for ease of illustration on paper. Pre-autoclave sterilization device 102 Charges help promote a clean environment for the equipment, but But it can't be torn. After this step, the device can be transported directly to the workshop.

The flap 92 is folded away from the chamber access means 44.

Container 80 is then placed on horizontal surface 103. End portion 1 of container access means 90 04 is biased into intimate relationship with the end portion 78 of the chamber access means 44. edge 78, 104 by any suitable biasing means, such as a spring mechanism 106. Can be energized.

As seen in FIG. 5, molds 110 are then installed with respective chamber access means. 44 and around the end portions 78, 104 of the container access means 90. melt The molten material 112 then passes through the feed line 114 and around the end portions 78, 104. is injected into the mold interior 120. The molten material 112 is plastic, preferably is predicted to be a thermoplastic, but the requirements listed below It is contemplated that other compatible melt materials may also be used. In a preferred embodiment The molten material is manufactured by Shell, Oil Company under the trade name Kraton. This is plastic sold.

Kraton is a block copolymer of polystyrene and rubbery polyolefin materials. It is believed that it is the body. Other acceptable plastics include those sold by DuPont. This is Delrin for sale. The plastic can be pierced, but We must be resistant to timelessness.

The pressure of the injected molten material 112 overcomes the bias between the end portions 78, 104 and and pull the end portions apart into spaced relationship as shown in FIG.・ A molten material, such as molten plastic, must be quite hot in order to remain molten. Will. During injection molding, the molten material is heated by heat transfer from the injected molten material 112. It has been found that the end portions 78° 104 of both access means are sterilized. Kr When using a ton, heat to 500°F to sterilize the end section 78.104. temperature must be maintained at or above that temperature. Generally for molten material 112 Higher temperatures will improve the sterilization ability of heat transfer during injection molding.

Spraying water on the end portion 7.8, 104 before injection of the heated molten material 112 Although this is not believed to be necessary in the preferred embodiment, It has been found that the sterilization ability of the transfer can be improved.

The molten material 112 is then cooled into a unitary joint 76 surrounding the end portion 78° 104. and keep the end portions in a sterile spaced relationship as shown in FIG. means of access 44.90 In addition to establishing and maintaining a sterile distance between The method thereby provides a piercing element such as needle 46, e.g. A compressible channel passes through both access means 44.90 as seen in Figure 8. Junction 7 to selectively establish a sterile passageway 118 between bar 22 and container 80. Provides a structure that can be penetrated through 6.

The aforementioned method for establishing and maintaining a sterile separation between the access means is , is believed to be possible without biasing the end portions 78, 104. That cost Alternatively, the end portions can be fixed or maintained in a predetermined spaced relationship. Ru. The molten material then reaches at least the end portions 78,1 of both access means 44.90. Can be injected around 04. In this alternative method, the injection of molten material is The molding itself does not separate the end portions 78.10'4, but the process Sterilize.

In a preferred embodiment, the injection molding of the molten material is carried out in the container access means 9 of the container 80. 0, so only a minimal amount of heat transfer occurs between the molten material 112 and the container 80. occurs between the drug and the second ingredient, such as a powdered drug, and thus maintains the effectiveness of the drug. It is believed that When using a glass vial as the container 80, the glass is Good insulation against heat transfer between the fusion material 112 and the second component 83 in the vial useful as. Rubber stopper 84 is also a good insulator.

access means 44.90 for establishing and maintaining a sterile distance between The foregoing method is limited to the access means for chamber 22 and container 80 specifically described. I can understand that it is not possible. In fact, any two containers can be called chamber 22 and container 22. It can be used instead of 80.

As mentioned above, the container 80 in the preferred embodiment includes a rubber stopper at the mouth 88 of the vial. Glass vial with 84 mm. Due to the use of glass structure and rubber stopper 84 , the container 80 cannot be exposed to high stresses. For this reason, the zygote 7 6, the injection molding process described above requires low pressure supply to the inside of the mold 120. It must be. The molten material 112 is at a pressure less than 10 PSI, preferably is injected at a pressure of approximately 5 PSr. In this low pressure injection molding, the inside of the mold 120 is Making an otherwise useful technique impossible to determine when it has been charged. For example, Termination of the output cycle is often determined by monitoring back pressure in the supply line. determined. When the back pressure of the molten material rises above a certain level, the inside of the mold becomes full. is known to be present, and further plastic injection is then stopped.

Under low injection molding pressure requirements, however, the back pressure of the molten material 112 increases significantly. is difficult to determine. If back pressure is allowed to rise, the pressure will The stopper 84 may be blown into the container 80 or the container 80 may be ruptured.

Another means of determining the end of the injection cycle is to inject into the interior of the mold through the supply line. including measuring the amount of molten material melted. Such measurement tools can be expensive. and accurate measurements are often difficult to carry out.

The solution to the problem of determining the end of an injection cycle is as shown in Figure 5. This is solved by providing the passage 122. Preferably open passageway 122 is This is a groove formed on one side of two half-split molds constituting the mold 110. open street Channel 122 extends between the mold interior 122 and the exterior of mold 110. open passageway 122 is preferably provided separate from supply line 114, but this I believe it is not necessarily necessary. The open passage is relatively In a narrow and preferred embodiment, the molten material is Kraton. ．． 0.030 inch to about 0.060 inch. Molten material inside the mold After filling 120, it enters open passage 122. The melt in passage 122 The presence of the molten material 112 is then sensed and the low pressure supply of molten material is then stopped. .

The mold interior end of the open passageway 122 is disposed away from the supply line 114. by narrowing the open passageway 122, and most importantly by narrowing the open passageway 122. Passageway 122 will be the path of greatest resistance to molten material 112 and its Therefore, it is believed that the mold is filled with molten material 112 only after the mold interior 120 is filled. I get teased.

The purpose is to make the open passage 122 the path of greatest resistance, but Preventing passageway blockage and allowing molten material to enter passageway 122. That is. Therefore, when the molten material has a higher viscosity, the passage 122 12 into the open passageway and prevent passageway 122 from being obstructed. However, the maximum strength for molten material 112 It will be narrow enough to provide a passageway for resistance.

If the injection molding process is performed manually, the presence of molten material in passageway 122 The presence of material can be detected visually and the operator can then apply pressure to the material feed. Stop applying. In automated operations, sensing the molten material in passageway 122 may be performed, e.g. For example, to the inside of the open passage 122 or to the outside 123 of the open passage 122. This can be accomplished by a variety of means, including a microswitch (not shown). Wear. Microswitch can connect to and control a low pressure source .

As the molten material 112 cools and forms the bond 76, the container 80 and compressible chamber Allows selective establishment of a sterile passageway 118 between two separate containers, such as bar 22 A sterile camp ring 124 is formed. In the closure system 20, a sterile cup is Pulling 124 connects chamber access means 44, container access means 90 and joined about at least the end portions 78, 104 of the access means 44.90. It includes a molded conjugate 76 whereby the conjugate holds the end portions in sterile spaced relationship. keep. The focal coupling further includes a piercing element, such as a needle 46, which selectively brings access means into passageway communication and includes a compressible chamber with container 80. A sterile passageway 118 is established between the chambers 22 through the access means 44.90. Alternatively, the joint 76 between the end portions 78, 104 can be pierced. Preferred ingredients In the example, the counter is housed within the chamber access means 44 and its Part of it. Needle 46 connects container 80 and chamber 22 when sterile passageway 118 is created. forming a conduit between However, the piercing element need not be the needle 46; And it is not necessary that the piercing element is also a conduit. Other piercing elements and Both sterile and conduit configurations can be used for the sterile coupling 124. actually sterile cup Ring 124 is not limited to use with closure system 20 described above. for example, Sterile coupling 124 provides a first means of access to one container and a means of access to another container. A second access means may be included, whereby the conjugate 76 is connected to the first and second access means. can be permanently fixed around at least an end of the access means.

The piercing element passes through the joint from the end portion from the corresponding access means to the first and to at least the other end portion of the second access means between both containers. In embodiments establishing a sterile passage through the access means, preferably plastic must be able to penetrate the zygote.

When forming the sterile coupling 124 to the closure system 20, it will fit loosely and open. An end pouch 96 is placed over the container 80 as seen in FIG. 1, for example. Ru. Flap 92 is then pulled down over container 80 and attached to its tip 94. and heat sealed to a flexible plastic sheet 26. plastic sheet 26. Flap 92 and pouch 96 enclose the container, but the axial Directional movement is allowed. As previously mentioned, the plastic sheet 26 and the flap 94 may be made of polyvinyl chloride material.

Such materials have very high coefficients of friction, thereby allowing the container 80 to compress. Axial movement relative to chamber 22 is inhibited. The plastic sachet 94 is simply Provided to reduce friction coefficient and facilitate easy axial movement. plastic The stick pouch 96 may be a polyolefin, such as polypropylene.

The closed system 20 allows for separate storage of the two components and selective mixing of the components under sterile conditions. Provide a solution. The first component 74 in the compressible chamber 22 and the first component 74 in the container 80 The second component 82 is initially a sterile campliner as illustrated in FIGS. 7 and 8. 124 by forming a sterile passageway 118 within the conjugate 76 . good In a preferred embodiment, sterile passageway 118 includes a piercing element, in this case needle 46. through the membrane 52 and the end portion 78 of the chamber access means 44. formed by. After piercing membrane 52, needle 46 connects zygote 76 and container 80. pierce the rubber stopper 84. Rubber stopper 84 is part of the container access means. needle 46 The interior of the container 80 is then in communication with the interior of the container 80 containing the second component. thorn The passage element simply grasps the container 80 and chamber access means 44 and removes it. By pushing them towards each other, they are forced towards the container. Closed Stem 20 allows axial movement of container 80.

When container 80 and needle 46 are pressed together as seen in FIG. The tube 50 collapses due to its flexible structure. Sleeve 50 and membrane 52 form a chamber - Helps retain the access means 44 within the zygote. An annular ring around the membrane 52 Bulb 52 helps retain membrane 52 within assembly 76 . If the zygote 76 is the needle 46 Once molded directly around the needle 46, the needle 46 can be withdrawn from the joint Will. Although it is believed that such a construction of the present invention is possible, the sleeve 50 A chamber access means 44 comprising a membrane 52 and a membrane 52 is preferred.

The breakable cannula 62 directs the liquid first component 74 to the chamber access means 44. to prevent fluid from accumulating in the sleeve 50 before the rupture cannula is opened. Stop. Additionally, the fracture cannula 62 is stored within the compressible chamber 22. provides further assurance that the first component 74 is free from contamination. chamber 2 2 and the interior of the vessel 580 to fully open the sterile passageway 118 between the interior of the vessel 580. 62 must be opened. This can be compressed into the chamber - 22 crabs from the outside This is done by operating the Yure 62. The broken part 72 is against the hollow end 60 the cannula 62 at the weakened portion 70. if you wish , the broken portion 72 is then pushed down away from the hollow end 60 and below the retaining member 64. can be done. The breaking cannula 62 has fins 7 that frictionally engage the holding member 64. 3 on the fracture portion 72. Therefore, the broken part 72 is captured in the retaining member 64 and does not float loosely within the chamber 22.

After the sterile passageway is opened and the fracture cannula is opened, the container 80 and the chamber are opened. Fluid flow between the bars 22 is through the needle 46 and through the fins 7 of the fracture cannula 62. 3 and through an opening 66 formed in the retaining member 64. Sterile expert When channel 118 is formed, gas trap and reservoir compartment 32.3 0 to facilitate proper mixing of the first and second components 74.82, respectively. can be selectively located.

The mixing operation is best seen with reference to FIGS. 9-12. This method Some of the components 74 are removed from the container after at least some air 128 is present in the container. 80 and exchange some of the liquid in the container with some of the liquid in chamber 22. and finally emptying the liquid in container 80 into chamber 22.

In the illustrated embodiment, liquid first component 74 is present along with a small amount of air or other gas. It is stored in a chamber 22 that can be compressed to . If the first component 74 is in the container 80 Packed without air in a chamber that can be compressed if some air is stored can be equipped. Powdered drugs are often stored in drug vials under partial vacuum. however, and because of this additional air is required for the practice of the invention. It is. Air 128 is thus stored in chamber 22 .

The transfer of liquid from chamber 22 to container 80 occurs as liquid first component 74 is shown in FIG. the chamber 22 until it is adjacent to the chamber access means 44 so as to This is achieved by Made of flexible plastic sheets 24, 26 Chamber 22 can be manually compressed, thereby releasing some of the liquid into the chamber. from the chamber into contact with the second mixed component 82 within the container 80.

If the gas trap compartment 32 and container 80 are By keeping the closure system 20 horizontally below the reservoir compartment 30, Liquids are most easily transferred. Compression is performed before the container 80 is completely filled with liquid. It is important to stop. If container 80 is vacuum packaged, the container can be It would be possible to completely fill the weir.

After some of the first component 74 enters the container 80, the container 80 is shaken out of the closure system. It is stirred by washing. This mixes the first component 74 with the second component 82. do. If the second component is a powder, stirring the container will initiate mixing between the components. It is most useful for

This causes the powder to cake together, providing less contact surface area between the ingredients. This is especially true if Stirring is used to crush the second component into small particles. help.

After the liquid transfer step, the amount of liquid in container 80 is shown best in FIG. Some of the liquid in the sea urchin chamber 22 is replaced. Initially, the chamber No gas (or liquid) in the body trap compartment 32 has access to the chamber. until adjacent the means 44 and the chamber access means 44 is connected to the gas trap. The chamber is manipulated until it is above the compartment 32. Compressible characters The figure 5 shape of the member maintains the closure system 20 in the upright position shown in FIG. , allowing liquid in chamber 22 to be adjacent to chamber access means 44 . To tolerate. All of the air 128 in chamber 22 is stored in reservoir compartment 30. You can get it. This is due to the air 128 in the gas trap compartment 32. manipulating the position of closure system 20 such that flow through open channel 42 Therefore, it is achieved.

The chamber can then be manually compressed, which causes the gas in the chamber 22 to The liquid in the wrap compartment is forced into container 80. During this compression process, the volume The air in container 80 above the liquid in container 80 is pressurized. Compression of the chamber is It will stop when. When compression is stopped, the pressurized air in the container draws some of the liquid out of the container. extrude into chamber 22. The liquid first component 74 now has a second component mixed therewith. I have some of 82.

Without the unique shape of chamber 22, which is compressible, the liquid exchange process would - the system such that the access means 44 is below the gas trap compartment; This would be done by reversing the 20 and then pushing the chamber.

The closure system then moves into the container 80 while applying a force to the chamber to compress it. The air will be rotated approximately 180° so that it is located on top of the liquid in container 80 cormorant. Only then can the compression of chamber 22 be stopped, thereby causing the liquid from the container 80 into the chamber 22.

The liquid exchange step of the mixing method transfers some of the second component 82 into the chamber 22; and an additional amount of liquid first component 74 having a low concentration of second component 82 therein. 80 with some amount of the remaining second component. A mixture with a low concentration is Complete removal of second component 74.82 by contacting with remaining portion of second component 82 Mixing is facilitated. A liquid exchange step can be performed if necessary or if thorough mixing is required. It may be repeated several times if one wishes to ensure that . After each liquid mixing process is finished, The closed system 20 can be agitated to facilitate mixing. The second component is For example, when it comes to powdered drugs, repeated liquid exchange steps are most useful.

After complete mixing between the first and second components is achieved or all the powder is dissolved After that, the liquid in the container substantially contains the first or second component 74.82 in the container 80. It is transferred into the chamber without leaving any traces. The process of emptying this liquid is the 11th step. , 12A and 12B. Initially, the chamber 22 is At least some of the air 128 in the treatment 30 is removed from the gas trap and reservoir. The gas trap comparators pass through open channels 42 between the compartments 32 and 30. is operated until it enters the treatment 32. This shows the closure system 20 shown in dotted lines in FIG. Rotate about 90” from the position shown in Figure 10 shown in Figure 11 to the horizontal position shown by the ★ line in Figure 11. done by.

Ru. Air 128 travels around inner wall 34, through open passageway 42, and into the gas tract. port tube end 1 to ensure flow into the top compartment 32. rotating the closure system 20 until the end 30 is a certain amount higher than the suspended end 132; is desirable. This is schematically illustrated in FIG. 11 by line 134.

The chamber is then filled with air 128 in the gas trap compartment 32. It is operated until it is adjacent to the bar access means 44.

This arrangement is illustrated in Figure 12A with the closure system 2o rotated approximately 90' counterclockwise. It is shown. The inner wall 34 includes a gas trap and reservoir compartment 32. ’ In addition to separating and partially isolating at least a portion of the air in the gas trap compartment 32 adjacent to the chamber access means 44. This enables selective closure as described above. Empty the liquid from the containerNext The step is to compress the chamber as shown in Figure 12A.

This compression removes at least some of the air in the gas trap compartment 32. into the container 8o, thereby pressurizing the air 128 above the liquid in the container 8o. do. Compression of the chamber is then stopped and the container is removed as shown in FIG. 12B. The now pressurized air in the container moves the liquid in the container through the sterile passageway 118 into the chamber. - Push it out into 22.

Mixing is now complete. The homogeneous mixture is within compressible chamber 22. closure System 2o is now a supply container for discharging the mixture in chamber 22 to the patient. It can be used as Carry out this fluid release by spiking the dosing st. 100).

The unique design of the compressible chamber 22 of the present invention is similar to that of the sterile container described above. It can also be used without the pull 124. Selection with open flow path between Compression with a gas trapping compartment and a reservoir compartment A possible chamber may be combined with a container or for future connection to it. , for storing components separately and selectively mixing them, or stored in for mixing the liquid first component and the second component stored in a container to be connected in the future. It can be used as a device for When the device includes a compressible chamber and a container, a closed system System 20 is such a device, but the container and chamber are and the zygote, which can be connected by any selectively opened passageway between the container and the container. 76. For example, container 80 and chamber 22 may be It is possible to have a selectively opened passageway that is a conduit with a break cannula. child The selectively opened passageway can have a different structure than those described above. Container At least one of the compressible and compressible chambers also contains gas. This device is sterile Useful for mixing two components even when conditions do not require it.

When the apparatus does not include a container, the apparatus 102 may be, for example, as shown in FIG. stomach. Apparatus 102 includes means for accessing a gas trap compartment; Therefore, this access means 44 selectively connects to another container and connects the container and the chamber. A selectively open passage can be formed between the two.

Figures 14-16 illustrate other embodiments of the sterile coupling described above. . In this embodiment, a compressible main chamber 138 and a compressible auxiliary chamber 138 are shown. A closure device 136 is provided that includes a 1° 40 mm. Chamber 138.140 can be made from a flexible plastic sheet of polyvinyl chloride, for example.

Area 141 has no function other than to provide a uniform appearance to device 136.

Port 100'' provides selective communication between main chamber 138 and the exterior of device 136. provide.

Tubes 142, 144 are connected to main and auxiliary chambers 138, 140, respectively. It extends from and communicates with them. Each tip 14 of the tube 144° 142 6,148 can be made of needle-pierceable plastic or rubber material. It is closed by a cap portion 150. The first part of the flexible sleeve 50゛ End 56' is connected to camp portion 150. Second end 58" of sleeve 50" is connected to the pierceable membrane 52° and thereby closed. Sleeve within 50゛ Two needles 152 and 154 with sharp ends are housed in the . Tube 142,1 44. Camping part 150. Sleeve 50゛, membrane 52゛ and needle with pointed ends 152, 154 are the containers, in this case the main and auxiliary chambers 138, 14. providing a first access means to a container containing both 0 and 0. I mentioned it before The joint 76' includes a membrane 52°, a sleeve 50'', a cap portion 150, and a needle 15. 2,154 and the end of the first access means including tubes 142,144. The joint 76' is also secured around the rubber stopper 8 of the container 80'. It is also fixed around the 4”.

In this embodiment, the rubber stopper 84' is connected to the second container, in this case container 80'. is part of the second access means.

A liquid first component 74'' is stored in the main chamber 138. A second component 82'' is contained in the main chamber 138. It is stored in a container of 80゛. The auxiliary chamber 140 is kept empty until mixing is desired. and the container 80' is then pushed towards the first access means. Both ends are sharp Both needles 152, 154 are attached to the joint 76', the plug 84' and the camp portion 15'. Pierce 0. An open fluid passage is then established as seen in FIG. . The fluid passageway extends from the main chamber 138 to a tube 142 and a double-ended needle. 152 into container 80''. The fluid passageway extends from container 80'' at both ends. Continuing through the sharpened needle 154 and tube 144 into the auxiliary chamber 140 ing.

Mixing begins by compressing the main chamber 138 and transferring the liquid therein into the container 80. This is achieved by extruding the liquid from the container into the auxiliary chamber 140. next , the auxiliary chamber 140 is compressed and the fluid is passed through the container 80'' to the main chamber 1. Reflux into 38. This cycle consists of the first and second components 74', 82' Repeat until mixed. The po) 100' is then opened and releases the mixture. can do. Main and auxiliary chambers 138 to establish flow patterns , 140 and the container 80'' were filed concurrently with the present invention and Agent symbol PP-1203 “For mixing liquids and solids” transferred to the assignee. Kaufnan et al., U.S. Patent Application entitled ``Containers for Meals''.

The closure device 136 uses a sterile cuff ring without a figure 5 chamber. Provide sterile inspection for use.

Yet another example of a sterile coupling can be seen in FIG. Here, zygote 7 6" is secured around a rubber stopper 84" to provide access to the container 8° or other container. It serves as a means. The conjugate 76'' connects the container 80'' to another container, e.g. That is, it is connected to the first component storage unit 156. Access to storage unit 156 The access means is connected at one end to the inlet port 160 of the storage unit and at the other end. and a flexible balloon 158 connected to the other end of the junction 76''. The cut access means further includes one double-ended needle 164 and two single-ended needles 164. needle housing 16 having a pointed needle 166,168 mounted therein; Contains 2. The needle housing 162 further includes a balloon interior 159 and a needle with a pointed end. 166.168 Check valves 170, 172 providing one-way fluid passage between each Contains. The coupling body 76'' is connected between the rubber stopper 84'' and the storage unit access means. Provides a sterile coupling.

Communication between storage unit 156 and container 80'' directs the two containers toward each other. approximating the needle housing 162, thereby compressing the balloon 158 as shown. 76” toward both the joint 76” and the inlet boat 160. be done. The needles 164, 166 pierce the rubber stopper 84''.The needles 164, 168 penetrate the inlet. Penetrate port 160. Fluid then sputtered from the storage unit 156. Transfer through needle 168 and through check valve 172 into balloon interior 159 is possible. can. The fluid flows from the balloon interior 159 through the check valve 170 and the needle 166 into the container. 80". Fluid can flow from container 80" into storage unit 156. It is free to flow through the double-ended needle 164. balloon 158 and reverse Stop valves 170 and 172 prevent the first and second components 74'' and 82'' from mixing within the balloon. Provide a compound. Balloon 158 may be repeatedly compressed to effect a pumping action. , thereby mixing the first and second components 74'' and 82''.

Although some embodiments and features have been described herein and illustrated in the accompanying drawings, various It is clear that other modifications are possible without departing from the scope of the invention. Dew.

International research report

Claims (1)

[Claims] 11a) a compartment for selectively trapping gas and the gas trap; a reservoir compartment in open communication with the compartment; a compressible chamber containing a first component; (b) a container containing a second component that is sterile; at least one of which also contains a sterile gas); and (C1 the gas trap means for accessing said chamber adjacent to said chamber; (d) means for accessing said container; (81) surround each end of said access means and place said end in a sterile, separate and a zygote maintained in relationship (fl) of said access means (one of said connecting bodies); selectively pierce the union, connect the access means and connect the container and the chamfer. an element capable of establishing a sterile passage through said access means between the members; including (gl After the sterile passageway has been established, the gas trap and reservoir The component is selectively selected to facilitate proper mixing of the first and second components. Two separately stored components characterized in that they can be located in a sterile state Closed system for selective mixing in closed conditions. 2. The closure of paragraph 1, wherein a single sterile passageway is established between said chamber and said container. chain system. 3. (a1 selectively gas trapping compartment and the gas trap) a reservoir compartment in open communication with the top compartment; and a compressible chamber containing a sterile liquid component and a sterile gas; (a drug vial containing a drug component and sealed with a pierceable stopper; (C) access to said chamber adjacent to said gas trap compartment; means, fdl at least exposing an end of said chamber access means and said pierceable plug; and an end of the chamber access means and an exposed portion of the pierceable plug. a zygote that maintains a sterile and distant relationship with the exit portion; (e) the chamber access means selects the conjugate and the pierceable plug; a piercing element between the compressible chamber and the drug vial; and a piercing element capable of establishing a sterile passage through the piercing plug and said piercing bung. After the sterile passageway has been established, the gas trap and reservoir are removed. Bath compartments are selective to facilitate proper mixing of sterile liquids and drugs Two separately stored components characterized in that they can be located in a sterile state Closed system for mixing under conditions. 4. A single sterile passageway is established between the chamber and the drug vial. 3-term closure system. 5. The chamber access means extends from the gas trap compartment. a needle extending from the counter, and a needle mounted around the counter and the gas tube at the first end. a flexible sleeve secured to the wrap compartment; a pierceable membrane affixed to said sleeve at an end and closing it; , the needle serves as the piercing element, and the membrane serves as the chamber aperture. 4. A closure system according to claim 1 or claim 3, comprising said end of said access means. 6. The conjugate is adapted to sterilize the end by heat transfer to the end. The closure system of item 1 is molded from heated molten material around the ends. 7. The conjugate is bonded to the ends and exposed portions by heat transfer to the ends and exposed portions. Said end of said chamber access means and said puncture are sterilized to sterilize exposed parts. a third section molded from heated molten material around the exposed portion of the threadable plug; closure system. 8. The closed system of paragraph 6 or paragraph 7, wherein the joined body is formed by injection molding. Mu. 9. The assembly is molded from a molten material having a temperature of at least about 500°F. Section 8 closed system. 10. The closure system of clause 8, wherein said joint is a plastic material. 11. The conjugate is a closed system of paragraph 10 consisting at least primarily of Kraton. stem. 12. The assembly is molded from a molten material having a temperature of at least about 500°F. Section 11 closed system. 13. The conjugate is not cored when pierced by the piercing element. Clause 1 or Clause 3 closure system. 14. The closed system of clause 3, wherein the drug component is a particulate solid. 15. The closed system of item 3, wherein the drug component is a liquid. 16. The compressible chamber includes an inner wall, the inner wall having a closed end and an open end. having a full length of the inner wall separating the gas trap and reservoir compartment; and at said closed end said gas lamp and reservoir compartment member. and the gas trap and reservoir comparator adjacent to the open end. the inner wall defines an open flow path between the chambers, and the inner wall defines an access to the compressible chamber. a small amount of said gas in said gas trap compartment adjacent to said access means; The closure system of the first or third term allows selective confinement of both parts. Tem. 17. The gas trap and reservoir compartment and the inner wall collectively imparting a generally figure five shape to the compressible chamber; corresponds to the long leg of the figure 5 shape, and the gas trap compartment corresponds to the short leg of the figure 5 shape. corresponding to the legs, said inner wall separating the long and short legs of the figure 5 shape, and further said The sterile passageway is located at the top of the gas trap compartment, which corresponds to the top of the figure 5. 16. A closed system in communication with the top. 18, said compressible chamber having first and second flexible chambers having outer seals; Closing system according to clause 1 or 3, consisting of a plastic sheet. 19. The closure system of clause 18, wherein the outer seal is a heat seal. 20. The closure system of clause 18, wherein said outer seal is a high frequency seal. 21. Selective mixing of two components stored separately in a closed system under aseptic conditions a method for selectively trapping gas, the system comprising: a compartment for selectively trapping gas; and a reservoir compartment in open communication with the gas trap compartment. , the compressible chamber further having a closed end and a and an open end for between said compartments adjacent said open end. an inner wall separating said gas trap and reservoir compartment except for a flow path; the compressible compartment contains a first component of liquid and the compressible compartment contains a first component of the liquid; The stem further includes a container containing a second component, and the stem further includes a container containing a second component; At least one of the chamber and the container also contains a gas, and the system the gas trap compartment is also connected to a compressible chamber adjacent to the gas trap compartment. an access means for the container, an access means for the container, and a respective access means for the container; a conjugate surrounding an end of the access means, at least one of the access means said system comprising an element capable of selectively penetrating the zygote; connecting the access means and the compressible chamber and the The piercing element is passed through the conjugate so as to establish a sterile passageway between the container and the container. To push forward, (by passing some of the first component of the liquid through the passage, some of the gas (c) (i) transferring the gas compartment while it is in the container; the liquid in the chamber is adjacent to the chamber access means and the chamber access means Manipulate the chamber until it is above the gas trap compartment, (i i) compressing the chamber, thereby forcing some liquid into the container; (iii) stopping said compression, thereby forcing some liquid from the container into the chamber; Some of the liquid in the container is removed by forcing some of the liquid in the chamber to (dl) emptying the liquid in the container into the chamber; The method characterized in that: 22. The transfer of the liquid is (a) the chamber until the first mixture component of the liquid is adjacent to the chamber access means; operate the bar, (b) compressing the chamber, thereby forcing some liquid from the chamber into the container; (C1) before the container is filled with liquid. 22. The method of claim 21, comprising the step of stopping said compression. 23. The step of emptying the liquid comprises: (At least some of the gas in the al storage compartment passes through the flow path to gas Manipulate the chamber to enter the trap compartment; (The gas in the k11 gas trap compartment is adjacent to the chamber access means.) and the chamber access means is above the gas trap compartment. (c) compress the chamber, thereby reducing the amount of gas; (Press the gas trap into the container from the gas trap compartment, then pressurizes the gas above the liquid in the container, (stop the compression of the dl chamber and pass the liquid in the container to the pressurized gas in the container) Clause 21 or clause 21 further comprising the step of forcing the material through the chamber into the chamber. Method of Section 22.