JP5705356B1 - Medical instrument attachments - Google Patents

Abstract

To provide an attachment device for a medical instrument as a soot tube that can be detachably attached to many types of medical tweezers of different types. SOLUTION: A scissor tube 12 having a nozzle portion 15 and a spring scissors 23 for detachably attaching the scissor tube 12 to an arm portion 13 of a medical tweezer 10 are provided. Of the sandwiching plate 25 and one spring member 26. The supporting shaft piece provided in the middle of the two sandwiching plates 25, which also serves as the open / close support shaft of the sandwiching plate 25 and serves as the supporting tube 12. 27 are overlapped with each other, and the soot tube 12 is loosely fitted into the shaft holes 28 formed in these support shaft pieces 27. [Selection] Figure 1

Description

  The present invention relates to an accessory device to be attached to a medical instrument, and more specifically, a bipolar tube is attached to a distal end of a bipolar electric tweezer for hemostasis or other medical instrument, and a gas or liquid is injected to the affected area. In addition, the present invention relates to a device attached to a medical instrument used when blood or body fluid is sucked from an affected area.

Conventionally, various attachment devices to be attached to medical tweezers have been proposed.
For example, the medical tweezer 10 shown in FIG. 10 is used to flow a high-frequency current between two tip electrodes 11 at the tip to stop or incise the affected part, and the fistula 12 is fixed inside the arm part 13. The physiological saline is sprayed in the form of a mist from the distal end portion of the soot tube 12 (Cited document 1).
In addition, there is known a tube tube 12 that is detachably attached to the inside of the arm portion 13 to cool the medical tweezers 10 or to separately clean the tweezer main body and accessory parts (Cited document 2). .

JP 2000-201948 A JP 2000-201947 A

The size and shape of the medical tweezers 10 depends on the treatment method of the affected part such as incision, coagulation, and peeling, and depending on the part to be treated of the affected part such as for chest, tonsil, head and neck, and eyelid, and further by the manufacturer. There are many different types.
In the method of forming an accessory device such as a fistula tube 12 in a fixed manner on the tweezer arm described in Patent Document 1, there are two types of medical tweezers with and without an accessory device for each of a number of types of medical tweezers. It is necessary to prepare tweezers.
Also suitable for accessory devices such as gastrostomy tubes, differences in gas suction and jetting, differences in liquid suction and jetting, differences in the orientation of the gastroscopy with respect to the affected area, differences in the diameter of the gastroscopy When trying to do so, there was a problem that dozens of types of medical tweezers had to be prepared.
In addition, the detachable attachment of an accessory device such as a soot tube described in Patent Document 2 has an advantage that it can be cleaned separately from the tweezer body, but this tweezer is attached to the inside of the tweezer arm. There was a problem that it could not be attached to the arm with different shapes.

  An object of the present invention is to provide an attachment device for a medical instrument as a soot tube that can be detachably attached to many types of medical instruments of different types.

The present invention provides an attachment device for medical tweezers in which the nozzle portion 15 of the scissor tube 12 is mounted facing the distal end portion of a medical tweezer 10 as a medical instrument, and sprayed or sucked from the nozzle portion 15. A spring scissor 23 for detachably attaching the tube 12 to the arm portion 13 of the medical tweezers 10, the spring scissor 23 including a sandwiching plate 25 and a spring material 26. The tweezer tube 12 is also used as an opening / closing support shaft.
The spring scissors 23 are characterized in that support shaft pieces 27 provided in the middle of two sandwiching plates 25 are overlapped with each other, and the soot tube 12 is loosely fitted into shaft holes 28 formed in these support shaft pieces 27. To do.

A nozzle holding ring 33 is provided in the vicinity of the distal end portion of the soot tube 12 so as to loosely fit to the arm portion 13 and hold the position of the nozzle portion 15 of the soot tube 12.
The spring member 26 is formed of a U-shaped leaf spring, and holds the soot tube 12 in the shaft hole 28 with a force of expanding the two sandwiching plates 25 with the soot tube 12 also serving as a support shaft as a fulcrum.
The soot pipe 12 is provided with a main pipe 21 through a switching valve 16 at an end opposite to the nozzle section 15, and a switching pipe 16 is provided with a branch pipe 22 that can be opened and closed.

  According to the first aspect of the present invention, there is provided a scissors tube having a nozzle portion and a spring scissors for detachably mounting the scissors tube on a medical instrument, the spring scissors comprising a sandwich plate and a spring material. The medical instrument is not limited to medical tweezers, and can be used by attaching to a surgical knife, forceps, or other elongated medical device. it can. Moreover, even if the shape varies depending on the manufacturer, it can be easily mounted and used. Furthermore, it can be used for laser irradiation through a very thin optical fiber in the soot tube, and when smoke is generated from the soot tube, smoke can be absorbed or exhausted.

  According to the second aspect of the present invention, the supporting shaft pieces provided in the middle of the two sandwiching plates constituting the spring scissors are overlapped with each other, and the soot tube is loosely fitted into the shaft holes formed in these supporting shaft pieces. Therefore, the position of the nozzle part can be adjusted in the front-rear direction by moving the soot tube in the spring scissors.

  According to the invention of claim 3, the medical instrument is a medical tweezers, and a armature tube is attached to an arm portion of the medical tweezers with a spring scissors, and the medical tweezers are disposed near the distal end portion of the armature tube. A nozzle holding ring is provided to hold the position of the nozzle part of the soot tube by loosely fitting the arm part of the soot. The position can also be adjusted in the direction of.

  According to the invention of claim 4, the spring material is a U-shaped leaf spring, and the flange tube is formed in the shaft hole by the force of expanding the two sandwich plates with the shaft tube also serving as a support shaft as a fulcrum. Since it is held, the soot tube can be securely held with a small number of parts, and assembly is also simple.

  According to the fifth aspect of the present invention, the main pipe is provided with the main pipe via the switching valve at the end opposite to the nozzle section, and the switching valve is provided with the openable and closable branch pipe. Spraying and suctioning can be operated with one hand.

  According to the sixth aspect of the present invention, the medical instrument is a laser fiber probe, a scissors tube is attached to a grip portion of the laser fiber probe with a spring scissors, and the laser fiber probe is disposed near the distal end portion of the scissor tube. Because the nozzle holding ring that loosely fits the tip of the tube and holds the position of the nozzle part of the tubule is provided, in surgery using a laser fiber probe, it is for laser irradiation through an ultrafine optical fiber in the tubule, When cold air is jetted from smoke pipes or smoke is generated, smoke can be absorbed and exhausted.

According to the invention of claim 7, the medical instrument is a peeling pick, and a scissors tube is attached to the grip portion of the peeling pick with a spring scissors, and from the proximal end portion of the soot tube to the inside of the distal end portion, with a gap of passage of the gas or liquid by inserting the laser fiber, in the vicinity of the tip portion of the front Kikuchibashi tube, the nozzle retaining ring to the position retention of the nozzle portion of the beak tube loosely fitted to the tip portion of the laser fiber Since it is provided, it is possible to perform medical treatment with a peeling pick and medical treatment with a laser fiber, and also to inject blood or the like in the affected area by passing a gas or liquid through the inside of this fistula or disinfecting You can do it.

It is a perspective view which shows one Example which mounted | wore the medical tweezers with the attachment apparatus of the medical instrument by this invention. It is the front view which notched some medical tweezers in FIG. It is an AA line expanded sectional view of the spring scissors 23 in FIG. It is a disassembled perspective view of the spring scissors 23 in this invention. It is the front view in which the switching valve 16 used for this invention was notched partially. It is explanatory drawing of the position adjustment of the nozzle part. It is a partially cutaway front view showing an example of a thin nozzle portion 15a. It is a front view which shows one Example which mounted | wore the medical laser fiber probe with the attachment apparatus of the medical instrument by this invention. It is a front view which shows one Example which attached the attachment apparatus of the medical instrument by this invention to the medical peeling pick. It is a one part perspective view of the conventional medical tweezers.

  The present invention provides an attachment device for medical tweezers in which the nozzle portion 15 of the scissor tube 12 is mounted facing the distal end portion of a medical tweezer 10 as a medical instrument, and sprayed or sucked from the nozzle portion 15. A spring scissor 23 for detachably attaching the tube 12 to the arm portion 13 of the medical tweezers 10, the spring scissor 23 including a sandwiching plate 25 and a spring material 26. The soot tube 12 is also used as an opening / closing support shaft.

  The spring scissors 23 are configured by superimposing support shaft pieces 27 provided in the middle of the two sandwiching plates 25 and loosely fitting the rod tube 12 into shaft holes 28 formed in these support shaft pieces 27.

  A nozzle holding ring 33 is provided in the vicinity of the distal end portion of the soot tube 12 so as to loosely fit the arm portion 13 and hold the position of the nozzle portion 15 of the soot tube 12.

  The spring member 26 is formed of a U-shaped leaf spring, and holds the soot tube 12 in the shaft hole 28 with a force of expanding the two sandwiching plates 25 with the soot tube 12 also serving as a support shaft as a fulcrum.

  The soot pipe 12 is provided with a main pipe 21 through a switching valve 16 at an end opposite to the nozzle section 15, and a switching pipe 16 is provided with a branch pipe 22 that can be opened and closed.

As Example 1 of the present invention, the medical instrument is a bipolar electric medical tweezer.
In FIG. 1, 10 is a bipolar electric medical tweezers as a medical instrument. The medical tweezers 10 is provided with two connection terminals 18 at the base end portion of the main body portion 17, and two arm portions 13 continuous to the connection terminal 18 extend to the distal end side of the main body portion 17. The tip of the arm 13 is a tip electrode 11. On the side of the body portion 17 of the arm portion 13, a grip portion 14 covered with plastic, rubber or the like is configured.

  The armature tube 12 is detachably attached to the arm portion 13 of the medical tweezer 10 by a spring scissors 23. The sputum tube 12 is made of a thin metal or plastic tube, and the tip portion is a nozzle portion 15 for injecting gas or liquid into the affected area, or sucking blood or body fluid from the affected area. The spring scissors 23 are provided at the base end portion of the soot tube 12, and the soot tube 12 also serves as an opening / closing support shaft of the spring scissors 23. As shown in FIGS. 3 and 4, the spring scissors 23 have left and right sandwiching plates 25a and 25b facing each other, and a U-shaped spring member 26 interposed therebetween. The spring member 26 is attached to the spring holes 29 at both ends thereof by inserting and bending spring holding pieces 30a and 30b cut and raised at the upper ends of the sandwiching plates 25a and 25b. In the sandwiching plates 25a and 25b, support shaft pieces 27a and 27b are formed inwardly on both sides of a substantially intermediate portion. The support shaft pieces 27a and 27b have shaft holes 28a and 28b at substantially the center. Is drilled. The shaft holes 28a and 28b are slightly larger than the diameter of the soot tube 12 so that the soot tube 12 is loosely fitted. The spring member 26 may be a coil spring.

  In assembling the spring scissors 23, a spring material 26 is fixed between the sandwiching plates 25a and 25b, and the spring material 26 is shrunk against the spring force to form the shaft holes 28a and 28b of the support shaft pieces 27a and 27b. Align and insert the tub tube 12. Then, as shown in FIG. 3, the claws 31 a and 31 b are pressed against each other like a clothespin with the basket tube 12 as a fulcrum, and the knobs 35 a and 35 b at the other end are opened outward. The opposite end of the nozzle portion 15 in the soot tube 12 is fixed to the coupler 19 by screwing or welding a screw 32. A nozzle holding ring 33 having an inner diameter slightly larger than that of the tip electrode 11 is provided in the vicinity of the nozzle portion 15 of the soot tube 12.

  The coupler 19 is connected via a switching valve 16 and a coupler 20 to a main pipe 21 connected to an air source, a chemical solution source, a vacuum pump, a suction machine, and the like. As shown in FIG. 5, the switching valve 16 has a cylindrical shape, communicates linearly between the coupler 19 side and the coupler 20 side, and communicates with a branch pipe 22 provided in a direction perpendicular thereto. A three-way valve body 24 is fitted in the switching valve 16 in an airtight and rotatable manner, and the three-way valve body 24 projects outwardly for switching. The protruding piece 36 is provided.

The operation of the medical tweezer attachment device configured as described above will be described.
The tip electrode 11 of the medical tweezer 10 is inserted into the nozzle holding ring 33 while gently holding the knobs 35 a and 35 b of the spring scissors 23.
Next, the claws 31 a and 31 b are opened by firmly pinching the knobs 35 a and 35 b of the spring scissors 23, and the flat part of the arm part 13 of the medical tweezers 10 is sandwiched as much as possible and fixed to the medical tweezers 10.
When the knobs 35a and 35b of the spring scissors 23 are pinched in this state, the soot tube 12 is loosely fitted in the shaft holes 28a and 28b, so that the soot tube 12 is moved back and forth to move the nozzle portion 15 to the tip electrode. Adjust to 11 proper position. The scissors tube 12 is moved back and forth within the shaft holes 28a and 28b of the spring scissors 23 in accordance with the size and shape of the medical tweezers 10 and the purpose of use.

The position of the nozzle unit 15 is a position slightly away from the affected part when jetting gas or liquid, and the position as close as possible to the affected part when sucking blood or body fluid from the nozzle unit 15. The position can be adjusted freely.
As shown in FIG. 6, when the nozzle portion 15 is moved to the target position such as above, below, right side, left side, etc., the tip electrode 11 is loosely fitted in the shaft holes 28a and 28b. When the proximal end portion of the nozzle 12 is rotated, the nozzle holding ring 33 is locked to the tip electrode 11 and is rotated with the tip electrode 11 as a fulcrum. After moving to the target position around the tip electrode 11, when the knob force of the knobs 35a and 35b is released, the soot tube 12 is fixed between the shaft holes 28a and 28b by the spring force of the spring material 26, and the nozzle portion 15 is , Is set at a predetermined position.

  Thus, various medical tweezers 10 having different shapes are set with the spring scissors 23, and as shown in FIG. 1, the operator 34 holds the medical tweezers 10 and the switching valve 16 of the soot tube 12 with one hand. When the affected part is operated by adjusting the distance between the tip electrodes 11 and 11 and bleeding occurs, the branch tube 22 is closed with a finger, so that the compressed air or the cleaning liquid is supplied to the nozzle unit 15. The bleeding site can be removed or washed in an instant after spraying from, and the site of hemostasis treatment can be clearly confirmed. The branch pipe 22 is adjusted by turning the switching valve 16 to a position where it can be easily opened and closed with a finger.

A liquid such as a chemical liquid or a cleaning liquid can be supplied from the main pipe 21 instead of the compressed air. Further, if air is sucked from the main pipe 21, it can also be used as a suction pipe for blood or body fluid from the nozzle portion 15.
Although FIG. 1 illustrates the case where the medical tweezers 10 are attached to the right arm 13, the medical tweezers 10 may be attached to the left arm 13.

In the said Example, although the soot pipe 12 was made into the same diameter from the base end part to the nozzle part 15, as shown in FIG. 7, it can attach to the front-end | tip of the soot pipe 12, and can make it a thin type. .
Moreover, the fistula 12 can be curved not only according to a straight line but also according to the site of the affected part.

In the above-described embodiment, the case where the scissor tube 12 is attached to medical tweezers has been described. However, it can be used by being attached to a surgical knife, forceps, a fiber probe for irradiating a laser, or other elongated medical devices.
Specifically, as shown in FIG. 8, the soot tube 12 is attached to the grip portion 14 of the laser fiber probe 37 with the spring scissors 23, and the nozzle portion 15 of the soot tube 12 faces the tip of the laser fiber 37. If cold air is sprayed from the fistula to the affected area during laser surgery or smoke is generated, smoke or smoke is discharged.
Further, as shown in FIG. 9, a soft and ultrafine (for example, 400 to 600 micron) laser fiber 37 that emits laser light is passed through the soot tube 12, and the soot tube 12 is a grip portion of the peeling pick 38 . 14, the affected part is treated with the laser fiber 37, and the mucous membrane is peeled off with the peeling pick 38. At this time, cold air can be sent from the gap in the soot tube 12. In order to remove smoke generated by the laser irradiation, the soot tube 12 can be used as a suction tube or an exhaust tube.

  DESCRIPTION OF SYMBOLS 10 ... Medical tweezers, 11 ... Tip electrode, 12 ... Sputum tube, 13 ... Arm part, 14 ... Grip part, 15 ... Nozzle part, 16 ... Switching valve, 17 ... Main part, 18 ... Connection terminal, 19 ... Coupler, DESCRIPTION OF SYMBOLS 20 ... Coupler, 21 ... Main pipe, 22 ... Branch pipe, 23 ... Spring scissors, 24 ... Three-way valve body, 25 ... Clamping plate, 26 ... Spring material, 27 ... Supporting shaft piece, 28 ... Shaft hole, 29 ... Spring hole, 30 ... spring holding piece, 31 ... claw, 32 ... screw, 33 ... nozzle holding ring, 34 ... operator, 35 ... knob, 36 ... projection piece, 37 ... laser fiber, 38 ... peeling pick.

Claims (7)

  A scissor tube having a nozzle portion and a spring scissor for detachably attaching the scissor tube to a medical instrument, the spring scissor comprising a sandwich plate and a spring material, and opening and closing the sandwich plate An attachment device for a medical instrument, wherein the above-mentioned soot tube is also used as a support shaft.   2. The support shaft pieces provided in the middle of two sandwiching plates constituting the spring scissors are overlapped with each other, and a soot tube is loosely fitted in shaft holes formed in these support shaft pieces. Equipment for medical instruments.   The medical instrument is a medical tweezer. A armature tube is attached to the arm portion of the medical tweezers with a spring scissors, and the arm portion of the medical tweezer is loosely fitted near the distal end portion of the armature tube. The apparatus for attaching a medical instrument according to claim 1 or 2, further comprising a nozzle holding ring for holding the position of the nozzle portion.   The spring material is formed of a U-shaped leaf spring, and the holding tube is held in the shaft hole by a force of expanding two sandwiching plates with the supporting tube serving as a support shaft as a fulcrum. The attachment device of the medical instrument of Claim 1, 2, or 3.   The main pipe is provided with a main pipe through a switching valve at an end opposite to the nozzle section, and a branch pipe that can be opened and closed is provided on the switching valve. An attachment device of the medical instrument described.   The medical instrument is a laser fiber probe, and a soot tube is attached to the grip portion of the laser fiber probe with a spring scissors, and the tip of the laser fiber probe is loosely fitted near the tip of the soot tube. The apparatus for attaching a medical instrument according to claim 1 or 2, further comprising a nozzle holding ring for holding the position of the nozzle portion. The medical instrument is a peeling pick, and a scissor tube is attached to the grip portion of the peeling pick with a spring scissor, and a laser fiber having a gap through which gas or liquid passes from the base end portion to the inside of the tip end portion. insert the front in the vicinity of the tip portion of the Kikuchibashi tube, characterized in that a nozzle retaining ring to the position retention of the nozzle portion of the beak tube loosely fitted to the tip portion of the laser Fiber claim 1 Or the attachment apparatus of the medical instrument of 2 description.

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