CN114392454B - Local anesthesia controllable spraying device for clinical anesthesia - Google Patents
Local anesthesia controllable spraying device for clinical anesthesia Download PDFInfo
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- CN114392454B CN114392454B CN202210119696.4A CN202210119696A CN114392454B CN 114392454 B CN114392454 B CN 114392454B CN 202210119696 A CN202210119696 A CN 202210119696A CN 114392454 B CN114392454 B CN 114392454B
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- 238000005507 spraying Methods 0.000 title claims abstract description 116
- 206010002091 Anaesthesia Diseases 0.000 title claims abstract description 45
- 230000037005 anaesthesia Effects 0.000 title claims abstract description 45
- 238000002690 local anesthesia Methods 0.000 title claims abstract description 21
- 239000003814 drug Substances 0.000 claims abstract description 174
- 239000007921 spray Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000001502 supplementing effect Effects 0.000 claims description 17
- 238000005086 pumping Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000003444 anaesthetic effect Effects 0.000 abstract description 68
- 239000007788 liquid Substances 0.000 description 23
- 229940079593 drug Drugs 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003193 general anesthetic agent Substances 0.000 description 4
- 230000007830 nerve conduction Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 206010033372 Pain and discomfort Diseases 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003589 local anesthetic agent Substances 0.000 description 1
- 229960005015 local anesthetics Drugs 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M19/00—Local anaesthesia; Hypothermia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/006—Sprayers or atomisers specially adapted for therapeutic purposes operated by applying mechanical pressure to the liquid to be sprayed or atomised
- A61M11/007—Syringe-type or piston-type sprayers or atomisers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
- A61M2202/048—Anaesthetics
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- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a local anesthesia controllable spraying device for clinical anesthesia, which comprises a spraying body, a jet flow medicine spraying pipe, a quantitative piston, a suction piston and a quantitative control assembly, wherein the spraying body is provided with a spray nozzle; a control cavity and a medicine storage cavity are horizontally arranged in the spray body at intervals, the control cavity and the medicine storage cavity are columnar sealing cavities, and the tail end of the control cavity is communicated with the outside; the suction piston and the quantitative piston are respectively arranged in the control cavity and the medicine storage cavity in a matching way and can hermetically slide back and forth along the inner wall of the cavity; the invention has unique structure and convenient use, can spray anesthetic to the affected part rapidly and uniformly when in use, and also effectively solves the problem that the existing anesthetic spraying device has single function and can not accurately control the sprayed dosage.
Description
Technical Field
The invention belongs to the technical field of medical anesthesia equipment, and particularly relates to a local anesthesia controllable spraying device for clinical anesthesia.
Background
Local anesthesia is also called local anesthesia, which refers to a state in which local anesthetics are applied to a body part under a state that a patient is conscious, so that the sensory nerve conduction function of a certain part of the body is temporarily blocked, and the motor nerve conduction remains intact or is blocked to some extent at the same time. The retardation should be completely reversible without any tissue damage. The local anesthesia has the advantages of simplicity, convenience, practicability, safety, waking up of the patient, less complications and small influence on the physiological functions of the patient; the common local anesthesia includes surface anesthesia, local infiltration anesthesia, regional blockage and nerve conduction blockage.
The surface anesthesia generally adopts a spray anesthesia mode, namely, an anesthetic is sprayed onto the surface of a part to be anesthetized in an aerosol form through a spraying device, so that the skin can quickly absorb the anesthetic. The existing anesthesia spraying special structure is simple, atmospheric pressure is utilized, the pushing pump is controlled by the handle to push gas into the anesthetic storage bottle, so that the gas pressure in the bottle is increased, the anesthetic can be pressed out of the bottle by atmospheric pressure when the water jet is opened, but the gas pushed into the anesthetic bottle only can spray out the anesthetic in the anesthetic bottle when in actual use, the function is single, the spraying amount cannot be accurately controlled according to treatment requirements, the spraying amount is estimated by medical staff only when in anesthesia, the accuracy is poor, the anesthetic is easy to spray out excessively or not enough easily, the patient affected part is easy to be subjected to excessive anesthesia when the anesthetic is excessive, the recovery after treatment is affected, the pain and discomfort suffered by the patient during treatment cannot be completely eliminated when the sprayed anesthetic is too little, and the treatment effect is directly affected.
Disclosure of Invention
Aiming at the defects and problems of the existing anesthesia spraying device, the invention provides the local anesthesia controllable spraying device for clinical anesthesia, which has the advantages of unique structure, convenient use, and capability of spraying anesthetic to an affected part rapidly and uniformly during use, and effectively solves the problems that the existing anesthesia spraying device has single function and can not accurately control the spraying dosage.
The invention solves the technical problems by adopting the scheme that: a local anesthesia controllable spraying device for clinical anesthesia comprises a spraying body, a jet-flow medicine spraying pipe, a quantitative piston, a suction piston and a quantitative control component; a control cavity and a medicine storage cavity are horizontally arranged in the spray body at intervals, the control cavity and the medicine storage cavity are columnar sealing cavities, and the tail end of the control cavity is communicated with the outside; the suction piston and the quantitative piston are respectively arranged in the control cavity and the medicine storage cavity in a matching way and can hermetically slide back and forth along the inner wall of the cavity; the back of the suction piston is connected with a driving piece; the spray body is provided with a one-way exhaust valve and a one-way air inlet valve which are communicated with the front end of the control cavity, one end of the jet flow medicine spraying pipe is connected with the one-way exhaust valve, and the other end of the jet flow medicine spraying pipe is connected with a spray head in a matching way; the jet flow medicine spraying pipe is provided with a jet flow section, the inner diameter size of the jet flow section is smaller than that of the medicine spraying pipe, the outer side wall of the middle part of the jet flow section is radially provided with a converging hole communicated with the internal channel, the front end of the control cavity is provided with an exhaust hole communicated with the outside, and the exhaust hole is communicated with the medicine storage cavity at the rear side of the quantitative piston; the front side of spraying body still is equipped with the one-way drug pumping valve and the one-way drug discharge valve with store up medicine chamber front end intercommunication, the drug discharge end and the hole intercommunication that converges of one-way drug discharge valve, quantitative control subassembly matches and sets up on the spraying body of storing up medicine chamber rear side, and quantitative control subassembly's control end is sealed stretches into the medicine intracavity, can adjust the movable range of quantitative piston in storing up medicine intracavity.
The spray body comprises a main cylinder barrel with front and rear ends being plugged, a columnar cavity in the main cylinder barrel is a control cavity, and the rear end face of the main cylinder barrel is provided with an opening or a hole communicated with the inside of the main cylinder barrel; an auxiliary cylinder barrel with front and rear ends plugged is arranged on one side of the main cylinder barrel, the auxiliary cylinder barrel is fixedly connected with the main cylinder barrel, and a medicine storage cavity is arranged in a columnar cavity in the auxiliary cylinder barrel; the driving piece and the quantitative control component are respectively arranged on the main cylinder barrel and the auxiliary cylinder barrel.
The driving piece comprises a piston rod and a push-pull handle, a piston rod hole communicated with the control cavity is formed in the rear end face of the main cylinder barrel along the axial direction, the piston rod and the suction piston are coaxially fixed together, and the other end of the piston rod penetrates through the piston rod hole to extend out of the main cylinder barrel and is connected with the push-pull handle.
The front end face of the auxiliary cylinder barrel is provided with a medicine discharging hole communicated with the medicine storage cavity along the axial direction, the inlet end of the one-way medicine discharging valve is connected with the medicine discharging hole, the other end of the one-way medicine discharging valve is connected with a medicine discharging pipe, and the other end of the medicine discharging pipe is connected with the converging hole.
The middle part of the front end surface of the main cylinder barrel is axially provided with a jet hole and an air supplementing hole which are communicated with the control cavity, the one-way exhaust valve is installed on the jet hole in a matching way, the exhaust end of the one-way exhaust valve is connected with the near end of the jet pipe, and the one-way air inlet valve is installed on the air supplementing hole in a matching way.
The front end face of the auxiliary cylinder barrel is axially provided with a medicine drawing hole communicated with the medicine storage cavity, the one-way medicine drawing valve is installed on the medicine drawing hole in a matched mode, and the medicine discharging end of the one-way medicine drawing valve is connected with a medicine drawing pipe in a matched mode.
The quantitative control assembly comprises an adjusting screw and a guide screw sleeve rod, a threaded hole penetrating through the guide screw sleeve rod is formed in the middle of the guide screw sleeve rod along the axial direction, an adjusting hole communicated with a medicine storage cavity is formed in the middle of the rear end face of the auxiliary cylinder barrel along the axial direction, one end of the guide screw sleeve rod is matched and installed in the adjusting hole, the other end of the guide screw sleeve rod extends outwards to form a spraying body, the adjusting screw is matched and installed in the threaded hole of the guide screw sleeve rod, the front end of the adjusting screw extends into the medicine storage cavity, the tail end of the adjusting screw extends backwards to form the guide screw sleeve rod, and a handle is connected.
The guide screw sleeve rod is internally provided with a sealing element, and the sealing element can be deformed by extrusion between the adjusting screw and the guide screw sleeve rod.
The back end face of the auxiliary cylinder barrel is axially provided with a pressure regulating hole communicated with the medicine storage cavity, a linkage air pipe is arranged on the outer side wall of the spraying body between the pressure regulating hole and the air exhaust hole, and the front end and the back end of the linkage air pipe are respectively connected with the air exhaust hole and the pressure regulating hole.
One end of the air pipe, which is connected with the pressure regulating hole or the exhaust hole, is provided with a throttle valve, and the other end of the throttle valve is connected with the corresponding pressure regulating hole or the exhaust hole.
An observation window capable of observing the inside of the medicine storage cavity is axially arranged on the outer side wall of the auxiliary cylinder barrel, and scales are arranged on the observation window.
The invention has the beneficial effects that: the invention provides a local anesthesia controllable spraying device for clinical anesthesia, which has a unique structure and comprises a spraying body, wherein a control cavity and a medicine storage cavity are arranged in the spraying body, and a suction piston and a quantitative piston are respectively arranged in the control cavity and the medicine storage cavity; the front end of the control cavity is provided with a jet flow medicine spraying pipe, the jet flow pipe is communicated with the control cavity and the medicine storage cavity, the front end of the control cavity is communicated with the tail end of the medicine storage cavity, the rear side of the control cavity is provided with a driving piece capable of driving the sucking piston to move, and the rear side of the medicine storage cavity is provided with a quantitative control component; when the anesthetic is sprayed, the anesthetic can form a certain speed gradient under the action of air in the jet spraying pipe pressed by the control cavity, so that the sprayed anesthetic is turbulent and diffused under the effect of entrainment and mixing, and is further uniformly and rapidly sprayed on the treatment part of a patient, and the anesthetic effect is improved; after the anesthetic in the medicine storage cavity is completely sprayed, the pushing and moving of the suction piston can be stopped, so that the medicine spraying of the accurate control quantity of the treatment part is realized, and the problems that the existing anesthetic spraying device cannot accurately control the spraying quantity according to the treatment requirement, and the anesthetic is easy to spray excessively or not sufficiently are effectively solved.
The invention provides a local anesthesia controllable spraying device for clinical anesthesia, which has a unique structure and is convenient to use, and can not only rapidly and uniformly spray anesthetic to an affected part when in use, but also effectively solve the problems that the existing anesthesia spraying device has single function and can not accurately control the sprayed dosage.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic elevational view of the present invention.
Fig. 3 is a schematic perspective view of a master cylinder of the present invention.
Fig. 4 is a schematic view of the internal structure of the spray body of the present invention.
Fig. 5 is a schematic view of the internal structure of the main cylinder barrel of the present invention.
Fig. 6 is an enlarged schematic view of the structure at a in fig. 3.
FIG. 7 is a schematic view of the internal structure of the jet section of the present invention.
FIG. 8 is a schematic diagram of the quantitative control assembly of the present invention.
Fig. 9 is a schematic diagram of the flow of anesthetic agent in the use state of the present invention.
FIG. 10 is a schematic view of a second cylinder arrangement of the present invention.
Fig. 11 is a schematic view of the internal structure of the second cylinder of the present invention.
Fig. 12 is a schematic view of the annular reserve chamber of the present invention in its installed position.
Reference numerals in the drawings: 1 is a spray body, 11 is a master cylinder barrel, 111 is a control cavity, 113 is a piston rod hole, 114 is a spray hole, 115 is a one-way exhaust valve, 116 is an exhaust hole, 117 is an air supplementing hole, 118 is a one-way intake valve, 12 is a secondary cylinder barrel, 121 is a medicine storage cavity, 122 is a pressure regulating hole, 123 is a medicine pumping hole, 124 is a one-way medicine pumping valve, 125 is a medicine discharging hole, 126 is a one-way medicine discharging valve, 127 is a regulating hole, 13 is a linkage air pipe, 14 is a medicine pumping pipe, 15 is a medicine discharging pipe, 2 is a jet spray pipe, 21 is a jet section, 22 is a flow collecting hole, 3 is a quantitative piston, 4 is a suction piston, 41 is a piston rod, 42 is a push-pull handle, 5 is a quantitative control component, 51 is an adjusting screw rod, 52 is a guide screw sleeve rod, 53 is a threaded hole, 54 is a sealing piece, 55 is a handle, 6 is a second cylinder barrel, 61 is a quantitative supplementing cavity, 62 is a piston, 63 is a push rod, 64 is a second one-way medicine pumping valve, 65 is a liquid discharging hole, 66 is a liquid inlet hole, 67 is a second medicine pumping pipe, 7 is an annular cavity, 71 is a one-way liquid pumping pipe, 71 is a one-way liquid inlet pipe, 72 is a liquid inlet hole, 75 is a liquid inlet hole, and 75 is a liquid inlet pipe.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Example 1
The surface anesthesia generally adopts a spray anesthesia mode, namely, anesthetic is sprayed onto the surface of a part to be anesthetized in an aerosol form through a spraying device, so that the piece of skin can quickly absorb the anesthetic, the existing anesthesia spraying special structure is simple, the air pressure is utilized to control a pushing pump to push air into an anesthetic storage bottle through a handle, the air pressure in the bottle is increased, and the anesthetic can be pressed out of the bottle by the air pressure when a water outlet is opened; but when in actual use, the gas pushed into the anesthetic bottle only can spray out the anesthetic in the anesthetic bottle, the function is single, the spraying amount can not be accurately controlled according to the operation requirement, the spraying amount is only estimated by medical staff in general during anesthesia, the accuracy is poor, the anesthetic is easy to spray out excessively or spray out inadequately, the patient affected part is easy to be subjected to excessive anesthesia when the anesthetic is excessive, the recovery after the treatment is influenced, and the pain and discomfort suffered by the patient during the treatment can not be completely eliminated when the sprayed anesthetic is too little, so that the treatment effect is directly influenced.
Aiming at the problems, the embodiment provides a local anesthesia controllable spraying device for clinical anesthesia, which has a unique structure and is convenient to use, and can not only rapidly and uniformly spray anesthetic to an affected part when in use, but also effectively solve the problems that the existing anesthesia spraying device has single function and can not accurately control the sprayed dosage; as shown in fig. 1 to 9, the local anesthesia controllable spraying device provided by the embodiment comprises a spraying body 1, a jet spraying pipe 2, a dosing piston 3, a suction piston 4 and a dosing control assembly 5.
A control cavity 111 and a medicine storage cavity 121 are horizontally arranged in the spray body 1 at intervals, the control cavity 111 and the medicine storage cavity 121 are columnar sealed cavities, and the tail end of the control cavity 111 is communicated with the outside; specifically:
As shown in fig. 2 and 4, the spray body 1 comprises a main cylinder 11 with front and rear ends plugged, a columnar cavity in the main cylinder 11 is a control cavity 111, and the rear end surface of the main cylinder 11 is provided with an opening or hole 112 communicated with the interior of the main cylinder 11, so that the tail end of the control cavity 111 is communicated with the outside; one side of the main cylinder 11 is provided with an auxiliary cylinder 12 with front and rear ends being blocked, the auxiliary cylinder 12 is arranged in parallel with the main cylinder and is connected with the main cylinder, and a medicine storage cavity 121 is arranged in a columnar cavity in the auxiliary cylinder 12.
The suction piston 4 is arranged in the control cavity 11 in a matching way, namely the suction piston 4 is arranged in the main cylinder 11 in a matching way, the control cavity in the main cylinder 11 is divided into a front independent cavity and a rear independent cavity in a sealing way, and the suction piston 4 can axially slide along the inner wall of the control cavity; the back of the suction piston is connected with a driving member by means of which the suction piston can be controlled to slide axially in the control chamber 11, in particular: the driving piece is arranged in the main cylinder barrel, the driving piece comprises a piston rod 41 and a push-pull handle 42, a piston rod hole 113 communicated with the control cavity 111 is formed in the middle of the rear end face of the main cylinder barrel 11 along the axial direction, the piston rod 41 and the suction piston are coaxially fixed together, the other end of the piston rod 41 penetrates through the piston rod hole 113 to extend out of the main cylinder barrel and is connected with the push-pull handle, and the suction piston 4 can be driven to axially slide in the control cavity in the main cylinder barrel 11 by pushing and pulling the piston rod 41 through a push-pull plate.
The quantitative piston 3 is installed in the medicine storage cavity 121 in a matching way, namely, the quantitative piston is installed in the auxiliary cylinder body in a matching way, the medicine storage cavity in the auxiliary cylinder body is divided into a front independent cavity and a rear independent cavity in a sealing way, and the quantitative piston can axially slide along the inner wall of the medicine storage cavity.
Be equipped with on the spraying body with control chamber front end intercommunication's one-way discharge valve and one-way admission valve, the one end and the one-way discharge valve of efflux medicine spraying pipe are connected, and the other end matching of efflux medicine spraying pipe is connected with the shower nozzle, specifically:
The jet spraying pipe 2 is axially arranged at the front side of the main cylinder 11, a spray head is connected at the far end of the jet spraying pipe in a matched mode, a spraying hole 114 communicated with a control cavity is axially formed in the middle of the front end face of the main cylinder 11, a one-way exhaust valve 115 is installed on the spraying hole 114 in a matched mode, the exhaust end of the one-way exhaust valve 115 is connected with the near end of the jet spraying pipe 2, and air in the control cavity can be discharged outwards through the jet spraying pipe only through the one-way exhaust valve.
An air supplementing hole 117 communicated with the control cavity 111 is axially formed in the front end face of the main cylinder barrel 11 at one side of the jet hole 114, a one-way air inlet valve 118 is installed on the air supplementing hole 117 in a matched mode, when the negative pressure in the control cavity at the front side of the piston plate reaches the opening pressure of the one-way air inlet valve 118 in the backward moving process of the piston plate controlled by the piston rod, the one-way air inlet valve 118 can be automatically opened, and air can enter the control cavity through the one-way air inlet valve.
The jet spraying pipe 2 is provided with a jet section 21, the inner diameter size of the jet section 21 is smaller than that of the spraying pipe, and the inner diameter size of the middle part of the jet section 21 gradually becomes larger towards the front end and the rear end; the outer side wall of the middle part of the jet flow section is radially provided with a confluence hole 22 communicated with the internal channel, when the suction piston is driven to slide forwards by the piston rod, and air in the control cavity at the front side of the suction piston is extruded, the inner diameter of the jet flow section is smaller than the inner diameter of the medicine spraying pipe, so that acceleration is generated when the air passes through the jet flow section, and negative pressure is generated in the confluence hole 22.
The front end of the control cavity 111 is provided with an exhaust hole 116 communicated with the outside, the opening position of the exhaust hole 116 is on the front end face of the main cylinder barrel, the exhaust hole 116 is communicated with the medicine storage cavity at the rear side of the quantitative piston, and specifically: the rear end face of the auxiliary cylinder barrel 12 is axially provided with a pressure regulating hole 122 communicated with the medicine storage cavity, the outer side wall of the spray body between the pressure regulating hole 122 and the exhaust hole 116 is provided with a linkage air pipe 13, and the front end and the rear end of the linkage air pipe 13 are respectively connected with the exhaust hole and the pressure regulating hole.
As shown in fig. 4, the front side of the spray body is further provided with a one-way medicine drawing valve and a one-way medicine discharging valve which are communicated with the front end of the medicine storage cavity, and the medicine discharging end of the one-way medicine discharging valve is communicated with the confluence hole, specifically:
A medicine drawing hole 123 and a medicine discharging hole 125 which are communicated with the medicine storage cavity 121 are axially formed in the front end face of the auxiliary cylinder barrel 12, a one-way medicine drawing valve 124 is arranged on the medicine drawing hole 123 in a matched mode, and a medicine drawing end of the one-way medicine drawing valve 123 is connected with a medicine drawing pipe 14 in a matched mode; the inlet end of the one-way medicine discharging valve 126 is connected with the medicine discharging hole, the other end of the one-way medicine discharging valve 126 is connected with the medicine discharging pipe 15, and the other end of the medicine discharging pipe 15 is connected with the confluence hole 22.
And the opening pressure of the one-way air inlet valve is larger than the pressure required by the pumping piston to drive the dosing piston to move backwards to open the one-way medicine pumping valve to pump the medicine.
The quantitative control component 5 is matched and arranged on the spraying body at the rear side of the medicine storage cavity, and the control end of the quantitative control component is sealed to extend into the medicine storage cavity, so that the moving range of the quantitative piston in the medicine storage cavity can be adjusted, and specifically:
The quantitative control assembly 5 is arranged on the auxiliary cylinder barrel 12, the quantitative control assembly 5 comprises an adjusting screw 51 and a guide screw sleeve rod 52, a threaded hole 53 penetrating through the guide screw sleeve rod is formed in the middle of the guide screw sleeve rod 52 along the axial direction, an adjusting hole 127 communicated with the medicine storage cavity is formed in the rear end face of the auxiliary cylinder barrel along the axial direction, one end of the guide screw sleeve rod is installed in the adjusting hole 127 in a matched mode, the other end of the guide screw sleeve rod extends out of the auxiliary cylinder barrel 12, the adjusting screw 51 is installed in the threaded hole of the guide screw sleeve rod 52 in a matched mode, the front end of the adjusting screw 51 penetrates through the guide screw sleeve rod to extend into the medicine storage cavity, the tail end of the adjusting screw extends out of the guide screw sleeve rod backwards, a handle 55 is connected, and the length of the adjusting screw penetrating into the medicine storage cavity can be controlled by rotating the adjusting screw rod through the handle 55.
Further, be equipped with in the direction screw loop pole with sealing member 54, the kind of sealing member has a plurality of, and for example sealing member is the sealing washer, and after adjusting screw matees and installs in the direction screw loop pole, the sealing washer can receive the extrusion between adjusting screw and the direction screw loop pole to produce deformation to guarantee the leakproofness of quantitative piston rear side medicine storage chamber.
Before the anesthesia controllable spraying device provided by the embodiment is used for anesthetizing a patient, the anesthesia controllable spraying device provided by the embodiment is assembled, and the internal metering piston 3 and the suction piston 4 of the device are positioned at initial positions and are abutted against the front cavity wall of the corresponding cavity; then, the length of the adjusting screw rod penetrating into the medicine storage cavity is adjusted according to the treatment requirement, so that when the quantitative piston 3 moves backwards along the medicine storage cavity and is abutted against the adjusting screw rod, the volume of the medicine storage cavity at the front side of the quantitative piston 3 is the same as the dosage of anesthetic required by treatment; then the medicine drawing tube is inserted into the anesthetic storage bottle, then the sucking piston is pulled by the driving piece to slide backwards along the control cavity, in the process, air at the rear side of the quantitative piston can be sucked into the control cavity through the linkage air pipe 13, so that the quantitative piston is driven to move backwards along the medicine storage cavity to suck anesthetic into the medicine storage cavity; when the extracted anesthetic meets the treatment requirement, namely when the metering piston is in contact with the adjusting screw rod, the one-way drug drawing valve is automatically closed, then the pumping piston is continuously driven to move backwards, the one-way air inlet valve 118 is opened, so that air is supplemented into the control cavity at the front side of the pumping piston, and when the pumping piston moves to the corresponding position, the anesthetic is pumped;
When the anesthesia controllable spraying device provided by the embodiment is used for anesthetizing a patient, a spraying head of the anesthesia controllable spraying device which is used for sucking anesthetic according to the requirement is aligned to the treatment part of the patient, then the driving part drives the quantitative piston to move forwards, in the process, air in a control cavity at the front side of the sucking piston is divided into two parts, one part is discharged through the one-way exhaust valve 115 through the spraying hole, the other part is discharged into the medicine storage cavity 121 at the rear side of the quantitative piston through the linkage exhaust pipe through the exhaust hole 116, the quantitative piston is pushed forwards to squeeze the anesthetic to continuously discharge the anesthetic into the jet medicine spraying pipe through the medicine discharging pipe through the one-way exhaust valve, the spraying head of the jet medicine spraying pipe acts on the treatment part of the patient, and in the process, air entering the jet medicine spraying pipe 2 through the one-way exhaust valve is accelerated when passing through the jet section, so that negative pressure is generated in the confluence hole 22, and the anesthetic is assisted to be sucked into the jet medicine spraying pipe 2 through the jet medicine spraying pipe, and the air entering the medicine spraying pipe 2 through the one-way exhaust valve is mixed forwards, flows and is sprayed on the treatment part of the patient through the spraying head; the negative pressure generated in the flow converging hole 22 can cause anesthetic agent in the entrained gas to obtain momentum and flow forwards along with the air pressed into the jet flow medicine spraying pipe 2 through the one-way exhaust valve, and the momentum of the air pressed into the jet flow medicine spraying pipe 2 through the one-way exhaust valve is reduced to lose speed after the air passes through the jet flow section, so that a certain speed gradient is formed, the ejected anesthetic agent is turbulent and diffused under the effects of entrainment and mixing, and the anesthetic agent is further uniformly and rapidly sprayed on a treatment part of a patient, so that the anesthetic effect is improved; after the anesthetic in the medicine storage cavity is completely sprayed, the pushing and moving of the suction piston can be stopped, so that the medicine spraying of the accurate control quantity of the treatment part is realized, and the problems that the existing anesthetic spraying device cannot accurately control the spraying quantity according to the treatment requirement, and the anesthetic is easy to spray excessively or not sufficiently are effectively solved.
Example 2
Embodiment 2 is different from embodiment 1 in that the outer side wall of the auxiliary cylinder barrel is axially provided with an observation window capable of observing the inside of the medicine storage cavity, and the observation window is provided with scales, so that the deep length of the control screw rod can be accurately adjusted.
Example 3
Embodiment 3 differs from embodiment 2 in that a throttle valve is provided on the linkage air pipe for communicating the air vent hole with the pressure regulating hole, the throttle valve is used for regulating the flow of the internal passage of the linkage air pipe, and various ways of setting the throttle valve are provided, for example: the throttle valve is installed on the exhaust hole in a matching way, the other port of the throttle valve is connected with the linkage air pipe, and the other end of the linkage air pipe is connected with the pressure regulating hole, so that the moving speed of the quantitative piston during linkage driving can be controlled according to the requirement by adjusting the flow of the linkage air pipe when the quantitative piston is used.
Example 4
Embodiment 4 differs from embodiment 3 in that a dosing chamber is also provided on the spray body on one side of the control chamber.
As shown in fig. 10 and 11, the spray body at one side of the control chamber is further provided with a quantitative replenishment chamber, the quantitative replenishment chamber is a columnar sealing chamber, and the tail end of the quantitative replenishment chamber is communicated with the outside, specifically:
The second cylinder 6 that both ends shutoff set up around being equipped with of one side of main cylinder 11, second cylinder 6 and main cylinder parallel arrangement to link together, the inside column cavity of second cylinder 6 is quantitative and supplements chamber 61, and the rear end face of second cylinder be equipped with quantitative supplement chamber 61 intercommunication hole or uncovered, thereby make quantitative supplement chamber 61's tail end and external intercommunication, second cylinder 6 and negative cylinder are located the left and right sides of main cylinder respectively.
A piston 62 which can slide forwards and backwards along the quantitative replenishment strong is arranged in the quantitative replenishment cavity in a matching way, and the piston seals the quantitative replenishment cavity into a front independent cavity and a rear independent cavity; the rear end face of the piston is vertically connected with a push rod 63, the tail end of the push rod extends out of the spray body backwards, a handle is connected with the push rod, and the piston 62 can slide back and forth in the quantitative supplementing cavity by pushing and pulling the push rod through the handle.
The front end of the spraying body is provided with a second one-way medicine drawing valve 64 communicated with the quantitative supplementing cavity 61 at the front side of the piston 62, and a liquid discharging hole 65 communicated with the quantitative supplementing cavity 61 is axially arranged on the spraying body at one side of the second one-way medicine drawing valve, and the liquid drawing end of the medicine drawing pipe 14 is connected with the liquid discharging hole 65, specifically:
The front end surface of the second cylinder 6 is axially provided with a liquid inlet hole 66 communicated with the quantitative supplementing cavity 61, the liquid discharge hole 65 is arranged on the front end surface of the cylinder 6, the second one-way medicine drawing valve is installed on the liquid inlet hole 66 in a matching way, and the medicine drawing end of the second one-way medicine drawing valve is connected with a second medicine drawing pipe 67.
When the anesthesia controllable spraying device provided by the embodiment is used for sucking anesthetic, the anesthesia controllable spraying device provided by the embodiment is assembled, and the metering piston 3, the sucking piston 4 and the piston 62 in the device are all positioned at the initial positions, namely, are abutted against the front cavity wall of the corresponding cavity; then according to the dosage and the spraying times of the anesthetic required by treatment, the length of the adjusting screw rod penetrating into the medicine storage cavity is adjusted, so that when the quantitative piston 3 moves backwards along the medicine storage cavity and is in conflict with the adjusting screw rod, the volume of the medicine storage cavity at the front side of the quantitative piston 3 is the same as the single spraying dosage of the anesthetic required by treatment; then the second drawing tube 67 is inserted into the anesthetic storage bottle, then the push rod 63 is pulled to drive the piston 62 to move backwards, the anesthetic is drawn into the quantitative replenishment cavity 61, when the anesthetic capacity in the quantitative replenishment cavity 61 meets the treatment requirement, the drawing is stopped, then the drawing piston is pulled by the driving piece to slide backwards along the control cavity, in the process, air at the rear side of the quantitative piston is drawn into the control cavity through the linkage air pipe 13, and accordingly the quantitative piston is driven to move backwards along the medicine storage cavity, and the anesthetic in the quantitative replenishment cavity 61 is drawn into the medicine storage cavity.
When the extracted anesthetic meets the single spraying amount, namely when the metering piston is in contact with the adjusting screw rod, the one-way medicine sucking valve is automatically closed, then the sucking piston is continuously driven to move backwards, the one-way air inlet valve 118 is opened, so that air is supplemented into the control cavity at the front side of the sucking piston, when the sucking piston moves to a corresponding position, namely the air in the control cavity is enough to completely discharge the anesthetic needed by treatment, then the metering piston can be driven to move forwards through the driving part to perform single spraying of the anesthetic, after the barbed spraying is finished, the metering piston is driven to move backwards through the driving part to suck the anesthetic stored in the quantitative supplementing cavity 61 again to perform spraying, and the operation is repeated until the spraying frequency meets the treatment requirement, namely, after the anesthetic stored in the quantitative supplementing cavity is completely sprayed, the anesthesia is finished. Compared with the embodiment 3, when the anesthesia is carried out by using the anesthesia controllable spraying device provided by the implementation, the anesthesia controllable spraying device provided by the embodiment can realize accurate supply and continuous spraying, does not need repeated plugging and unplugging to extract anesthetic into the medicine storage tube, can pump and store the anesthetic dosage larger than the needed by the quality into the quantitative supplementing cavity when in use, and can carry out anesthesia spraying again by using the anesthetic dosage remained in the quantitative supplementing cavity when the anesthesia dosage needed by the quality is selected to carry out spraying again according to the actual condition of an on-site patient after the anesthesia dosage needed by the treatment of the atomization frequency accurate control theory, so that the applicability is strong.
Example 5
Embodiment 5 differs from embodiment 4 in that, as shown in fig. 12, an annular storage cavity is arranged outside the jet section of the jet spray tube, the jet section is located in the annular storage cavity, a one-way liquid inlet valve 71 is installed on the jet hole of the jet section in the annular storage cavity, the medicine suction tube 14 is communicated with the liquid discharge hole of the quantitative supplementing cavity 61 through the annular storage cavity, and the medicine discharge tube 15 is communicated with the jet hole through the annular storage cavity 7, specifically:
The outer wall of the annular storage cavity 7 is provided with a first communication hole 73, a second communication hole 74 and a third communication hole 75 which are communicated with the annular storage cavity 7 at intervals, the first communication hole 73 is connected with a liquid pipe 72, the other end of the liquid pipe 72 is connected with a liquid discharge hole of the second cylinder 6 through a one-way valve, and storage skill in the second cylinder 6 is discharged into the annular storage cavity 7 through the liquid pipe 72 in a one-way through the one-way valve; one end of the medicine drawing tube 14 is connected with the one-way medicine drawing valve, and the other end is connected with the second communication hole 74, so that the medicine drawing tube 14 is communicated with the liquid discharge hole 65 through the annular storage cavity 7; one end of the drug discharge tube 15 is connected to the one-way drug discharge valve 126, and the other end is connected to the third communication hole 75, so that the drug discharge tube 15 communicates with the liquid discharge hole 65 via the annular reserve chamber 7 and the one-way liquid inlet valve 71.
Compared with the embodiment 4, when the anesthetic controllable spraying device provided by the embodiment drives the dosing piston to move backwards to suck the anesthetic in the second cylinder through the driving piece, the anesthetic is sucked into the annular storage cavity 7 and temporarily stored in the annular storage cavity 7, the distance between the annular storage cavity 7 and the second cylinder is closer, and the piston 62 is pushed by the push rod 63 to extrude the air in the liquid pipe 72, so that the anesthetic air in the second cylinder is prevented from being sucked into the annular storage cavity 7, and the accuracy of the anesthetic suction amount is prevented from being influenced; when the quantitative piston is driven to move forwards by the driving piece to spray the anesthetic once, the anesthetic in the annular storage cavity 7 can be directly pressed into the jet flow spraying pipe to be sprayed, so that the anesthetic effect is further improved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (7)
1. The local anesthesia controllable spraying device for clinical anesthesia is characterized by comprising a spraying body, a jet flow medicine spraying pipe, a quantitative piston, a suction piston and a quantitative control assembly; a control cavity and a medicine storage cavity are horizontally arranged in the spray body at intervals, the control cavity and the medicine storage cavity are columnar sealing cavities, and the tail end of the control cavity is communicated with the outside; the suction piston and the quantitative piston are respectively arranged in the control cavity and the medicine storage cavity in a matching way and can hermetically slide back and forth along the inner wall of the cavity; the back of the suction piston is connected with a driving piece; the spray body is provided with a one-way exhaust valve and a one-way air inlet valve which are communicated with the front end of the control cavity, one end of the jet flow medicine spraying pipe is connected with the one-way exhaust valve, and the other end of the jet flow medicine spraying pipe is connected with a spray head in a matching way; the jet flow medicine spraying pipe is provided with a jet flow section, the inner diameter size of the jet flow section is smaller than that of the medicine spraying pipe, the outer side wall of the middle part of the jet flow section is radially provided with a converging hole communicated with the internal channel, the front end of the control cavity is provided with an exhaust hole communicated with the outside, and the exhaust hole is communicated with the medicine storage cavity at the rear side of the quantitative piston; the front side of the spraying body is also provided with a one-way medicine pumping valve and a one-way medicine discharging valve which are communicated with the front end of the medicine storage cavity, the medicine discharging end of the one-way medicine discharging valve is communicated with the converging hole, the quantitative control assembly is arranged on the spraying body at the rear side of the medicine storage cavity in a matching way, and the control end of the quantitative control assembly extends into the medicine storage cavity in a sealing way, so that the moving range of the quantitative piston in the medicine storage cavity can be regulated;
The spray body comprises a main cylinder barrel with front and rear ends being plugged, a columnar cavity in the main cylinder barrel is a control cavity, and the rear end face of the main cylinder barrel is provided with an opening or a hole communicated with the inside of the main cylinder barrel; an auxiliary cylinder barrel with front and rear ends plugged is arranged on one side of the main cylinder barrel, the auxiliary cylinder barrel is fixedly connected with the main cylinder barrel, and a medicine storage cavity is arranged in a columnar cavity in the auxiliary cylinder barrel; the driving piece and the quantitative control component are respectively arranged on the main cylinder barrel and the auxiliary cylinder barrel;
the front end surface of the auxiliary cylinder barrel is axially provided with a medicine drawing hole communicated with the medicine storage cavity, the one-way medicine drawing valve is arranged on the medicine drawing hole in a matching way, and the medicine drawing end of the one-way medicine drawing valve is connected with a medicine drawing pipe in a matching way;
The rear end face of the auxiliary cylinder barrel is axially provided with a pressure regulating hole communicated with the medicine storage cavity, the outer side wall of the spray body between the pressure regulating hole and the exhaust hole is provided with a linkage air pipe, and the front end and the rear end of the linkage air pipe are respectively connected with the exhaust hole and the pressure regulating hole; and the opening pressure of the one-way air inlet valve is larger than the pressure required by the pumping piston to drive the dosing piston to move backwards to open the one-way medicine pumping valve to pump the medicine.
2. The local anesthesia controllable spraying device for clinical anesthesia according to claim 1, wherein the driving member comprises a piston rod and a push-pull handle, a piston rod hole communicated with the control cavity is formed in the rear end face of the main cylinder barrel along the axial direction, the piston rod and the suction piston are coaxially fixed together, and the other end of the piston rod penetrates through the piston rod hole to extend out of the main cylinder barrel and is connected with the push-pull handle.
3. The local anesthesia controllable spraying device for clinical anesthesia according to claim 1, wherein the front end surface of the auxiliary cylinder barrel is axially provided with a medicine discharging hole communicated with the medicine storage cavity, the inlet end of the one-way medicine discharging valve is connected with the medicine discharging hole, the other end of the one-way medicine discharging valve is connected with a medicine discharging pipe, and the other end of the medicine discharging pipe is connected with the confluence hole.
4. The local anesthesia controllable spraying device for clinical anesthesia according to claim 1, wherein the middle part of the front end surface of the main cylinder barrel is axially provided with a spraying hole and an air supplementing hole which are communicated with the control cavity, the one-way exhaust valve is installed on the spraying hole in a matching way, the exhaust end of the one-way exhaust valve is connected with the proximal end of the spraying pipe, and the one-way air inlet valve is installed on the air supplementing hole in a matching way.
5. The local anesthesia controllable spraying device for clinical anesthesia according to claim 1, wherein the quantitative control assembly comprises an adjusting screw and a guide screw sleeve rod, a threaded hole penetrating through the guide screw sleeve rod is axially formed in the middle of the guide screw sleeve rod, an adjusting hole communicated with the medicine storage cavity is axially formed in the middle of the rear end face of the auxiliary cylinder barrel, one end of the guide screw sleeve rod is installed in the adjusting hole in a matched mode, the other end of the guide screw sleeve rod extends out of the spraying body, the adjusting screw is installed in the threaded hole of the guide screw sleeve rod in a matched mode, the front end of the adjusting screw extends into the medicine storage cavity, the tail end of the adjusting screw extends out of the guide screw sleeve rod backwards, and a handle is connected to the tail end of the adjusting screw.
6. The local anesthesia controlled spraying device according to claim 5 wherein the guide screw is provided with a sealing member which is deformed by the extrusion between the adjusting screw and the guide screw.
7. The local anesthesia controllable spraying device for clinical anesthesia according to claim 1, wherein one end of the linkage air pipe connected with the pressure regulating hole or the exhaust hole is provided with a throttle valve, and the other end of the throttle valve is connected with the corresponding pressure regulating hole or the exhaust hole.
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| CN110227201A (en) * | 2019-07-10 | 2019-09-13 | 厦门市第五医院(厦门市同民医院) | A kind of department of anesthesia's injection device that injection dose is controllable |
| CN113521454A (en) * | 2021-07-13 | 2021-10-22 | 夏培暖 | Quantitative spraying device for clinical local anesthesia of medical anesthesia department |
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| CA2200727C (en) * | 1994-09-21 | 2006-11-28 | Adrian E. Smith | Apparatus and methods for dispersing dry powder medicaments |
| CN103025376B (en) * | 2010-06-30 | 2016-03-30 | 尼普洛株式会社 | Aerosol apparatus |
| US10105500B2 (en) * | 2012-05-09 | 2018-10-23 | Virginia Commonwealth University | Dry powder inhaler (DPI) designs for producing aerosols with high fine particle fractions |
| WO2016164817A1 (en) * | 2015-04-09 | 2016-10-13 | Leibovici Jacob | Method and apparatus for applying an anesthetic and bactericide |
| CN209611977U (en) * | 2018-10-31 | 2019-11-12 | 承德医学院附属医院 | A kind of spraying device for laryngopharynx surface anesthesia |
| CN210673976U (en) * | 2019-05-17 | 2020-06-05 | 范会琨 | Concentration regulation formula anaesthesia device of department of anesthesia |
| CN211634698U (en) * | 2019-09-11 | 2020-10-09 | 李娜 | Clinical site anesthesia quantitative spraying device that uses of department of anesthesia |
| CN211383338U (en) * | 2019-12-05 | 2020-09-01 | 庆阳市西峰区人民医院 | Double-end hand-held type local anesthesia device |
| CN213078837U (en) * | 2020-08-14 | 2021-04-30 | 冯奕鑫 | Contactless pressure double-section type fine atomization equipment |
| CN214050121U (en) * | 2020-10-21 | 2021-08-27 | 成都市双流区第一人民医院 | Quantitative extraction syringe suitable for medical anesthesia department uses |
| CN214260357U (en) * | 2020-12-10 | 2021-09-24 | 覃之人 | Anesthetic sprayer with adjustable medicine concentration |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110227201A (en) * | 2019-07-10 | 2019-09-13 | 厦门市第五医院(厦门市同民医院) | A kind of department of anesthesia's injection device that injection dose is controllable |
| CN113521454A (en) * | 2021-07-13 | 2021-10-22 | 夏培暖 | Quantitative spraying device for clinical local anesthesia of medical anesthesia department |
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