Multi-channel tissue clip running-hair clip forceps

Abstract

The utility model relates to the technical field of medical instruments, in particular to a multi-channel tissue clip running-hair clip forceps for ligating and closing lumen tissues. Comprising a holding mechanism (2), a forceps clip mechanism (3), a closing mechanism (4) and a multichannel tissue clip (5), the holding mechanism (2) comprises a fixed handle (20) and a rotating wheel (21); the fixed handle (20) is of a pistol type structure formed by combining a left piece and a right piece, a coaxial multi-section type cylindrical groove (202) is formed in the inner side of the fixed handle (20), and the front end of the cylindrical groove (202) is connected with the rotating wheel (21) in a matched mode so that the rotating wheel (21) can rotate but cannot move in the axial direction. The forceps clip mechanism (3) is composed of a forceps pressing handle (30), a forceps pressing pipe (31), a forceps pressing reset spring (32), a clip seat pipe (33), an upper forceps head (34) and a lower forceps head (35). The closing mechanism (4) is composed of a front push needle (41), a rear push needle (42) and a push needle pin (43).

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a multi-channel tissue clip continuous clamp used for ligation and closure of lumen tissue. Background Art

[0002] During surgical procedures, it is necessary to cut off the lumen tissues such as blood vessels and bile ducts in the body. Before cutting off, the lumen tissues must be closed first to prevent blood or other body fluids from flowing out. Tissue clips made of polymers have been widely used in surgery. One type of tissue clip (such as: Chinese invention patent application No. 200610051687.7) is an independent structure with an outer sheath and an inner double layer. The inner layer contacts the tissue and the outer layer presses the inner layer to form a closing force. Only one tissue clip can be delivered into the surgical pathway each time it is applied. The double-layer independent structure made of a polymer that is degradable and absorbed by the human body has a risk of slipping due to the small mutual friction. Another V-shaped tissue clip is generally a single piece made of a non-degradable and absorbable polymer (such as acetaldehyde diethyl acetal, polyoxymethylene). The two arms of the clip body are in a naturally open state. The protruding columns on both sides of the head of the V-shaped clip body are connected to the metal jaw grooves at the front end of the matching clip applicator and then delivered to the surgical pathway for use. Most clip applicators that match the V-shaped tissue clips can only load one tissue clip at a time.

[0003] In recent years, the matching continuous clip applicator for V-shaped tissue clips has also been continuously developed (such as: Chinese invention patent application number 202111376487.X). Due to the irregular shape of the V-shaped tissue clip itself, the structure of the V-shaped tissue clip continuous applicator is very complex, the manufacturing cost is high, and the failure rate is high. In addition, the V-shaped tissue clip is made of high molecular polymer, and its initial state is naturally open. The external dimensions are larger than the currently widely used laparoscopic surgical puncture device, and the existing continuous clip applicator generally uses a pre-installed V-shaped tissue clip. The V-shaped tissue clip is kept in a semi-closed state for a long time inside the continuous clip applicator. The stress change caused by the long-term deformation of its connection part causes the inability to open the clamp mouth during use, and the connection part is easy to break after use. Failure phenomena are more common. In addition, the irregular V-shaped tissue clip body is not conducive to the regular arrangement and sequential pushing of more V-shaped tissue clips, and it will also cause failures such as the push jamming and the direct disengagement of the clip applicator and falling in advance during use. The V-shaped tissue clip continuous applicator can solve the problem of surgical efficiency, but it relatively increases the risk of surgical safety. Summary of the invention

[0004] The utility model aims to solve the above-mentioned shortcomings and provide a multi-channel tissue clamp continuous clamp. When used in conjunction with the multi-channel tissue clamp, a special clamping instrument can provide functions such as clamping, observation, adjustment, and detection of lumen size. The special clamping instrument for multi-channel tissue clamps can also realize the function of loading more multi-channel tissue closing clips for continuous application, thereby ensuring the safety and continuity of surgical operations, improving surgical efficiency, reducing the need to replace instruments, and reducing the frequency of instrument punctures in the human body.

[0005] The multi-channel tissue clip continuous clamp is realized by adopting the following technical scheme: the multi-channel tissue clip continuous clamp 1 comprises a holding mechanism 2, a clamping mechanism 3 and a closing mechanism 4.

[0006] The holding mechanism 2 includes a fixed handle 20 and a rotating wheel 21 .

[0007] The fixed handle 20 is configured as a pistol-type structure composed of two pieces on the left and right, which is ergonomic, and the symmetrical design can be used by people with different left-hand habits. A three-section cylindrical groove 202 with different diameters is provided on the inner side of the fixed handle 20. The tail of the rotating wheel 21 is coaxially embedded in the large diameter of the front section of the cylindrical groove 202, so that the rotating wheel 21 can rotate but cannot move axially. The outer circle of the rear end cover 314 of the clamping tube 31 is adapted at the large diameter of the middle section of the cylindrical groove 202, so that the clamping tube 31 can rotate and slide axially forward and backward; the rear cover 334 of the clamping seat tube 33 is coaxially embedded in the large diameter of the rear section of the cylindrical groove 202, so that the clamping seat tube 33 can rotate but cannot move axially. A shaft column 201 is also provided on the inner side of the fixed handle 20 for adapting to the central axis hole 300 of the clamping handle 30.

[0008] The rotating wheel 21 is a plum petal structure composed of two pieces on the left and right, and the rear part is adaptively embedded in the front section of the cylindrical groove 202 inside the fixed handle 20, and can rotate but cannot move axially. A passage adapted to the movement of the clamping tube 31 is provided in the inner center of the rotating wheel 21, and a protruding rotation synchronization pile 210 is also provided in the passage, which is used to be inserted into the rotation synchronization slot 312 on the outer wall of the clamping tube 31, so that the rotating wheel 21 can drive the clamping tube 31 to rotate synchronously when rotating.

[0009] The clamping mechanism 3 is composed of a clamping handle 30 , a clamping tube 31 , a clamping return spring 32 , a clamp seat tube 33 , an upper clamp head 34 , and a lower clamp head 35 .

[0010] The middle part of the clamping handle 30 is provided with a central axis hole 300, which can be mounted on the shaft column 201 inside the fixed handle 20 for lever rotation. The lower part of the clamping handle 30 is provided with an arc trigger 301, which is suitable for finger gripping and pressing. The upper part of the clamping handle 30 is provided with a forked top head 302, and the middle part of the forked top head 302 is hollow to avoid the clamp seat tube 33. The front end of the top head 302 contacts the rear end cover 314 of the clamping tube 31.

[0011] Preferably, a switch can be provided between the first section of the pinching control clamp head and the second section of the pinching control push clamping stroke of the clamp pressing handle 30, so as to reduce the erroneous operation of continuously activating multiple tissue clamps during training. After qualified training, the user does not need to use it, which is more conducive to the consistency of the use of continuous clamps.

[0012] The clamping tube 31 is a hollow circular tube, with two symmetrical clips 310 at the front end, symmetrical clamping guide grooves 311 at the inner sides of the clips 310, and a rotation synchronization slot 312 penetrating the tube wall at the rear. The length of the rotation synchronization slot 312 is greater than the sum of the movement distances of the clamping tube 31 when the clamp head is opened and closed and the multi-channel tissue clips 5 are pushed. The rear end of the clamping tube 31 is provided with a push pin slot 313 penetrating the outer wall, and the length of the push pin slot 313 is the movement distance of the clamping tube 31 when the clamp head is opened and closed. The rear end of the clamping tube 31 is fixedly provided with a rear end cover 314, and a hole is provided in the middle of the round pancake-shaped rear end cover 314 for the adapter clamp seat tube 33 to pass through.

[0013] The clamp pressure reset spring 32 is sleeved on the outer wall of the clamp pressure tube 31, and one end of the clamp pressure reset spring 32 contacts the rear end cover 314, and the other end of the clamp pressure reset spring 32 contacts the small-diameter rear end surface between the front section and the middle section of the cylindrical groove 202 inside the fixed handle 20, so that the clamp pressure tube 31 can move forward to compress the spring and then be reset to the initial position.

[0014] The clamp seat tube 33 is a hollow square tube, and the outer periphery can be coaxially and adaptably mounted inside the clamping tube 31. Two clamp head shaft holes 330 are symmetrically provided on both sides of the front end of the clamp seat tube 33, which are respectively used to adaptably connect the rotating shafts of the upper clamp head 34 and the lower clamp head 35. The upper and lower sides of the front end of the clamp seat tube 33 are also symmetrically provided with a plurality of positioning plates 331 extending toward the inner wall of the square tube, which are used to position a corresponding number of multi-channel tissue clips so that they are arranged in the same direction and at the same distance. The gaps penetrated around the positioning plates 331 can be used to observe the internal storage of the multi-channel tissue clips 5 inside the clamp seat tube 33. The upper and lower sides of the front end of the clamp seat tube (33) are also provided with observation holes for observing the multi-channel tissue clips. The rear end of the clamp seat tube 33 is provided with push pin slots 332 penetrated on both sides, which are used to adapt the push pin pin 43 for installation and connection. The length of the push pin slot 332 is adapted to the length of a single multi-channel tissue clip. A rear cover 333 is fixedly provided at the tail of the clamp seat tube 33. A hole is provided in the middle of the round cake-shaped rear cover 333 for the push pin to pass through. The rear cover 333 can be adaptively embedded in the rear section of the large diameter of the inner cylindrical groove 203 of the fixed handle 20 so that it can rotate but cannot move axially.

[0015] The front end of the upper clamp head 34 is an upper U-shaped groove 340, and the cross section of the U-shaped groove is adapted to half of the cross section of the clamp seat tube 33. Upper engaging teeth 341 are provided on the two edges of the U-shaped groove; the rear end of the upper clamp head 34 is two upper clamp head wings 342, and the corresponding inner sides of the two upper clamp head wings are protrudingly provided with an upper clamp head shaft 343 adapted to the clamp head shaft hole 330 at the front end of the clamp seat tube 33; the corresponding outer sides of the two upper clamp head wings are provided with an upper opening and closing shaft 344 adapted to the clamp pressure guide groove 311 at the front end of the clamp pressure tube 31. When the clamp pressure tube moves forward and backward, the upper clamp head is positioned by the upper clamp head shaft 343 and the upper opening and closing shaft 344 slides to form an opening and closing movement close to or away from the central axis surface.

[0016] The front end of the lower clamp head 35 is a lower U-shaped groove 350, and the cross section of the U-shaped groove is adapted to half of the cross section of the clamp seat tube 33. The two edges of the U-shaped groove are provided with lower bite teeth 351, and the lower bite teeth 351 and the upper bite teeth 341 form a staggered cross shape when closed; the rear end of the lower clamp head 35 is two lower clamp head wings 352, and the corresponding inner sides of the two lower clamp head wings are protrudingly provided with lower clamp head shafts 353 adapted to the clamp head shaft holes 330 at the front end of the clamp seat tube 33; the corresponding outer sides of the two lower clamp head wings are provided with lower opening and closing shafts 354 adapted to the clamping guide grooves 311 at the front end of the clamping tube 31. When the clamping tube moves forward and backward, the lower clamp head is positioned by the lower clamp head shaft 353 and the lower opening and closing shaft 354 slides to form an opening and closing movement close to or away from the central axis surface. In addition, a hook knife 355 is provided at the front end of the lower U-shaped groove 350 of the lower clamp head 35. The height of the hook knife exceeds the mid-axis surface and can be used to separate, hook and position human tissue to prevent the human tissue from detaching during clamping.

[0017] The inner wall of the clamp seat tube 33 is adapted to fit the multi-channel tissue clip, and a plurality of multi-channel tissue clips 5 can be arranged in sequence in the clamp seat tube 33 at the same axis and distance.

[0018] The closing mechanism 4 is composed of a front push pin 41 , a rear push pin 42 , and a push pin pin 43 .

[0019] The front push needle 41 is adaptively mounted in the tube of the clamp seat tube 33, and the front end of the front push needle 41 contacts the rear end of the last of the multiple multi-channel tissue clips 5; the upper and lower sides of the front end of the front push needle 41 are provided with multiple positioning edges 410, and the spacing between the multiple positioning edges is equal to the length of the multiple channel tissue clips; the positioning edges cooperate with the positioning pieces 331 of the clamp seat tube 33, so that the front push needle can only step forward and cannot retreat. The middle and rear section of the front push needle 41 is half of the front section, and the middle surface of the front push needle 41 is provided with multiple fixed, backward pushing teeth 411, and the spacing between the pushing teeth is equal to the length of the multiple channel tissue clips.

[0020] The front section of the rear push pin 42 is half of the rear section, and a plurality of movable forward push teeth 420 are provided downwardly on the middle surface of the rear push pin 42, and the height and spacing of the plurality of push teeth can be adaptively embedded in the middle and rear section of the front push pin 41. The rear section of the rear push pin 42 is adapted to the inner wall of the clamping tube 31. The rear section of the rear push pin 42 is provided with a circular hole 421 penetrating the left and right sides.

[0021] The push pin pin 43 has a length equal to the outer diameter of the clamping tube 31 , and is fixedly connected to the circular hole 421 of the rear push pin 42 , and can slide forward and backward through the push pin slot 333 of the clamping seat tube 33 and the push clamp slot 313 of the clamping tube 31 .

[0022] Preferably, the front push needle 41 is set to a special warning color. When the multi-channel tissue clip 5 is about to be used up, the front push needle 41 reaches the front end of the clamp seat tube 33. The brighter warning color is easier for the user to be discovered from the gap around the positioning piece 33 at the front end of the clamp seat tube 33.

[0023] The multi-channel tissue clip 5 is in the shape of a U-shaped rectangular parallelepiped, adapted to the inner wall of the clamp seat tube 33. A closing surface 500 is provided on the central axis surface in the up-down direction, and a closing tooth 501 is provided on the closing surface, and an introduction port 502 is provided at the front end; positioning edges 503 are provided on the upper and lower surfaces respectively; and the left and right directions are divided into a multi-channel clamp body 504, which can improve the closing effect.

[0024] Beneficial effects of multi-channel tissue clip continuous clamps: Multi-channel tissue clip continuous clamps can be used in conjunction with multi-channel tissue clamps to provide a special clamping instrument with functions such as clamping, observation, adjustment, and detection of lumen size. The special clamping instrument for multiple-channel tissue clips can also realize the function of loading more multiple-channel tissue closing clips for continuous application, thereby ensuring the safety and continuity of surgical operations, improving surgical efficiency, reducing the need to replace instruments, and reducing the frequency of instrument punctures in the human body.

[0025] 1. The multi-channel tissue clip is made of raw materials that can be degraded into components that can be absorbed by human tissue, reducing the risk of long-term presence of foreign matter in the human body during the human life cycle. The regular shape reduces friction between tissues and reduces the risk of tissue being scratched and damaged.

[0026] 2. The "narrow-wide-narrow" parallel closing surfaces of the multi-channel tissue clips are equivalent to achieving multiple clamping effects in one tissue clip, and the multi-channel clamp bodies are connected to reinforce each other. The spacing between the multi-channel clamp bodies is narrow, which reduces the risk of cross-infection caused by multiple entry and exit of instruments into the human body for clamping; reduces operation time and improves operation efficiency; reduces the risk of mutual interference, collision and falling of multiple clips; reduces the requirements for the stripping length of the lumen tissue and increases the scope of application.

[0027] 3. The clamp tube design of the multi-channel tissue clamp is suitable for micro-hole laparoscopic surgery and improves the speed of postoperative recovery.

[0028] 4. The multi-channel tissue clip continuous clamp can carry more multi-channel tissue clips into the surgical channel at one time, which greatly improves the surgical efficiency. In addition, when an unexpected situation occurs, it can continuously clamp and close the lumen tissue multiple times and in multiple places, reducing the threat to life caused by surgical accidents.

[0029] 5. Multi-channel tissue clamps can realize independent grasping function, assist in lumen tissue stripping, and can be used to ensure the continuity of surgical channel establishment (this is very important during surgery, a lot of time is spent on repeated establishment of surgical channels). There is no need to frequently change the type of instruments, which reduces the demand for instrument types and reduces the risk of cross infection by frequently changing instruments.

[0030] 6. The multi-channel tissue clamp continuous clamp can be used for temporary clamping. If necessary, it can also complete the ligation and closure function, which is conducive to reducing the number of cavity wall punctures. In complex operations, it can also reduce the number of medical staff performing operations at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The utility model will be further described below in conjunction with the accompanying drawings:

[0032] Figure 1 1. It is a schematic diagram of the appearance of a multi-channel tissue clamp burst clamp;

[0033] Figure 2 This is a schematic diagram of the interior of a multi-channel tissue clip burst clamp;

[0034] Figure 3 This is a schematic diagram of the coordination of the clamp head parts of the multi-channel tissue clamp burst clamp Figure 1 ;

[0035] Figure 4 This is a schematic diagram of the coordination of the clamp head parts of the multi-channel tissue clamp burst clamp Figure 2 ;

[0036] Figure 5 It is a partial schematic diagram of the holding mechanism of the multi-channel tissue clamp burst clamp;

[0037] Figure 6 This is a partial diagram of the needle pusher of the multi-channel tissue clamp. Figure 1 ;

[0038] Figure 7 This is a partial diagram of the needle pusher of the multi-channel tissue clamp. Figure 2 ;

[0039] Figure 8 It is a schematic diagram of the appearance of the multi-channel tissue clamp of the multi-channel tissue clamp burst clamp.

[0040] Markings in the figure:

[0041] 1. Multi-channel tissue clamp burst clamp, 2. Gripping mechanism, 3. Clamping mechanism, 4. Closing mechanism, 5. Multi-channel tissue clamp. 20. Fixed handle, 201. Axis column, 202. Cylindrical slot, 21. Rotating wheel, 210. Rotating synchronous pile, 30. Clamping handle, 300. Middle axis hole, 301. Arc trigger, 302. Top head, 31. Clamping tube, 310. Clip, 311. Clamping guide groove, 312. Rotating synchronous slot hole, 313. Push pin slot, 314. Rear cover, 32. Clamping reset spring, 33. Clamp seat tube, 330. Clamp head axis hole, 331. Positioning piece, 332. Push pin slot hole, 333. Rear cover, 34. Upper clamp head, 340. Upper U-shaped Groove; 341 upper engaging teeth, 342 upper clamp head wing piece, 343 upper clamp head shaft, 344 upper opening and closing shaft, 35 lower clamp head, 350 lower U-shaped groove, 351 lower engaging teeth, 352 lower clamp head wing piece, 353 lower clamp head shaft, 354 lower opening and closing shaft, 41 front push pin, 410 positioning edge, 411 push tooth, 42 rear push pin, 420 movable push tooth, 421 round hole, 43 push pin pin, 500 closing surface, 501 closing teeth, 502 introduction port, 503 positioning edge, 504 multi-channel clamp body. DETAILED DESCRIPTION

[0042] Refer to the attached Figures 1 to 8 The multi-channel tissue clamp continuous clamp 1 comprises a holding mechanism 2, a clamping mechanism 3, a closing mechanism 4, and a multi-channel tissue clamp 5.

[0043] The holding mechanism 2 includes a fixed handle 20 and a rotating wheel 21 .

[0044] The fixed handle 20 is configured as a pistol-type structure composed of two pieces on the left and right, which is ergonomic, and the symmetrical design can be used by people with different left-hand habits. A three-section cylindrical groove 202 with different diameters is provided on the inner side of the fixed handle 20. The tail of the rotating wheel 21 is coaxially embedded in the large diameter of the front section of the cylindrical groove 202, so that the rotating wheel 21 can rotate but cannot move axially. The outer circle of the rear end cover 314 of the clamping tube 31 is adapted at the large diameter of the middle section of the cylindrical groove 202, so that the clamping tube 31 can rotate and slide axially forward and backward; the rear cover 334 of the clamping seat tube 33 is coaxially embedded in the large diameter of the rear section of the cylindrical groove 202, so that the clamping seat tube 33 can rotate but cannot move axially. A shaft column 201 is also provided on the inner side of the fixed handle 20 for adapting to the central axis hole 300 of the clamping handle 30.

[0045] The rotating wheel 21 is a plum petal structure composed of two pieces on the left and right, and the rear part is adaptively embedded in the front section of the cylindrical groove 202 inside the fixed handle 20, and can rotate but cannot move axially. A passage adapted to the movement of the clamping tube 31 is provided in the inner center of the rotating wheel 21, and a protruding rotation synchronization pile 210 is also provided in the passage, which is used to be inserted into the rotation synchronization slot 312 on the outer wall of the clamping tube 31, so that the rotating wheel 21 can drive the clamping tube 31 to rotate synchronously when rotating.

[0046] The clamping mechanism 3 is composed of a clamping handle 30 , a clamping tube 31 , a clamping return spring 32 , a clamp seat tube 33 , an upper clamp head 34 , and a lower clamp head 35 .

[0047] The middle part of the clamping handle 30 is provided with a central axis hole 300, which can be mounted on the shaft column 201 inside the fixed handle 20 for lever rotation. The lower part of the clamping handle 30 is provided with an arc trigger 301, which is suitable for finger gripping and pressing. The upper part of the clamping handle 30 is provided with a forked top head 302, and the middle part of the forked top head 302 is hollow to avoid the clamp seat tube 33. The front end of the top head 302 contacts the rear end cover 314 of the clamping tube 31.

[0048] Preferably, a switch can be provided between the first section of the pinching control clamp head and the second section of the pinching control push clamping stroke of the clamp pressing handle 30, so as to reduce the erroneous operation of continuously activating multiple tissue clamps during training. After qualified training, the user does not need to use it, which is more conducive to the consistency of the use of continuous clamps.

[0049] The clamping tube 31 is a hollow circular tube, with two symmetrical clips 310 at the front end, symmetrical clamping guide grooves 311 at the inner sides of the clips 310, and a rotation synchronization slot 312 penetrating the tube wall at the rear. The length of the rotation synchronization slot 312 is greater than the sum of the movement distances of the clamping tube 31 when the clamp head is opened and closed and the multi-channel tissue clips 5 are pushed. The rear end of the clamping tube 31 is provided with a push pin slot 313 penetrating the outer wall, and the length of the push pin slot 313 is the movement distance of the clamping tube 31 when the clamp head is opened and closed. The rear end of the clamping tube 31 is fixedly provided with a rear end cover 314, and a hole is provided in the middle of the round pancake-shaped rear end cover 314 for the adapter clamp seat tube 33 to pass through.

[0050] The clamp pressure reset spring 32 is sleeved on the outer wall of the clamp pressure tube 31, and one end of the clamp pressure reset spring 32 contacts the rear end cover 314, and the other end of the clamp pressure reset spring 32 contacts the small-diameter rear end surface between the front section and the middle section of the cylindrical groove 202 inside the fixed handle 20, so that the clamp pressure tube 31 can move forward to compress the spring and then be reset to the initial position.

[0051] The clamp seat tube 33 is a hollow square tube, and the outer periphery can be coaxially and adaptably mounted inside the clamping tube 31. Two clamp head shaft holes 330 are symmetrically provided on both sides of the front end of the clamp seat tube 33, which are respectively used to adaptably connect the rotating shafts of the upper clamp head 34 and the lower clamp head 35. The upper and lower sides of the front end of the clamp seat tube 33 are also symmetrically provided with a plurality of positioning plates 331 extending toward the inner wall of the square tube, which are used to position a corresponding number of multi-channel tissue clips so that they are arranged in the same direction and at the same distance. The gaps penetrated around the positioning plates 331 can be used to observe the storage status of the multi-channel tissue clips 5 inside the clamp seat tube 33. The upper and lower sides of the front end of the clamp seat tube (33) are also provided with observation holes for observing the multi-channel tissue clips. The rear end of the clamp seat tube 33 is provided with push pin slots 332 penetrated on both sides for adapting the push pin pin 43 for installation and connection. The length of the push pin slot 332 is adapted to the length of a single multi-channel tissue clip. A rear cover 333 is fixedly provided at the tail of the clamp seat tube 33. A hole is provided in the middle of the round cake-shaped rear cover 333 for the push pin to pass through. The rear cover 333 can be adaptively embedded in the rear section of the large diameter of the inner cylindrical groove 203 of the fixed handle 20 so that it can rotate but cannot move axially.

[0052] The front end of the upper clamp head 34 is an upper U-shaped groove 340, and the cross section of the U-shaped groove is adapted to half of the cross section of the clamp seat tube 33. Upper engaging teeth 341 are provided on the two edges of the U-shaped groove; the rear end of the upper clamp head 34 is two upper clamp head wings 342, and the corresponding inner sides of the two upper clamp head wings are protrudingly provided with an upper clamp head shaft 343 adapted to the clamp head shaft hole 330 at the front end of the clamp seat tube 33; the corresponding outer sides of the two upper clamp head wings are provided with an upper opening and closing shaft 344 adapted to the clamp pressure guide groove 311 at the front end of the clamp pressure tube 31. When the clamp pressure tube moves forward and backward, the upper clamp head is positioned by the upper clamp head shaft 343 and the upper opening and closing shaft 344 slides to form an opening and closing movement close to or away from the central axis surface.

[0053] The front end of the lower clamp head 35 is a lower U-shaped groove 350, and the cross section of the U-shaped groove is adapted to half of the cross section of the clamp seat tube 33. The two edges of the U-shaped groove are provided with lower bite teeth 351, and the lower bite teeth 351 and the upper bite teeth 341 form a staggered cross shape when closed; the rear end of the lower clamp head 35 is two lower clamp head wings 352, and the corresponding inner sides of the two lower clamp head wings are protrudingly provided with lower clamp head shafts 353 adapted to the clamp head shaft holes 330 at the front end of the clamp seat tube 33; the corresponding outer sides of the two lower clamp head wings are provided with lower opening and closing shafts 354 adapted to the clamping guide grooves 311 at the front end of the clamping tube 31. When the clamping tube moves forward and backward, the lower clamp head is positioned by the lower clamp head shaft 353 and the lower opening and closing shaft 354 slides to form an opening and closing movement close to or away from the central axis surface. In addition, a hook knife 355 is provided at the front end of the lower U-shaped groove 350 of the lower clamp head 35. The height of the hook knife exceeds the mid-axis surface and can be used to separate, hook and position human tissue to prevent the human tissue from detaching during clamping.

[0054] The inner wall of the clamp seat tube 33 is adapted to fit the multi-channel tissue clip, and a plurality of multi-channel tissue clips 5 can be arranged in sequence in the clamp seat tube 33 at the same axis and distance.

[0055] The closing mechanism 4 is composed of a front push pin 41 , a rear push pin 42 , and a push pin pin 43 .

[0056] The front push needle 41 is adaptively mounted in the tube of the clamp seat tube 33, and the front end of the front push needle 41 contacts the rear end of the last of the multiple multi-channel tissue clips 5; the upper and lower sides of the front end of the front push needle 41 are provided with multiple positioning edges 410, and the spacing between the multiple positioning edges is equal to the length of the multiple channel tissue clips; the positioning edges cooperate with the positioning pieces 331 of the clamp seat tube 33, so that the front push needle can only step forward and cannot retreat. The middle and rear section of the front push needle 41 is half of the front section, and the middle surface of the front push needle 41 is provided with multiple fixed, backward pushing teeth 411, and the spacing between the pushing teeth is equal to the length of the multiple channel tissue clips.

[0057] The front section of the rear push pin 42 is half of the rear section, and a plurality of movable forward push teeth 420 are provided downwardly on the middle surface of the rear push pin 42, and the height and spacing of the plurality of push teeth can be adaptively embedded in the middle and rear section of the front push pin 41. The rear section of the rear push pin 42 is adapted to the inner wall of the clamping tube 33. The rear section of the rear push pin 42 is provided with a circular hole 421 penetrating the left and right sides.

[0058] The push pin pin 43 has a length equal to the outer diameter of the clamping tube 31 , and is fixedly connected to the circular hole 421 of the rear push pin 42 , and can slide forward and backward through the push pin slot 333 of the clamping seat tube 33 and the push clamp slot 313 of the clamping tube 31 .

[0059] Preferably, the front push needle 41 is set to a special warning color. When the multi-channel tissue clip 5 is about to be used up, the front push needle 41 reaches the front end of the clamp seat tube 33. The brighter warning color is easier for the user to be discovered from the gap around the positioning piece 33 at the front end of the clamp seat tube 33.

[0060] The multi-channel tissue clip 5 is in the shape of a U-shaped rectangular parallelepiped, adapted to the inner wall of the clamp seat tube 33. A closing surface 500 is provided on the central axis surface in the up-down direction, and a closing tooth 501 is provided on the closing surface, and an introduction port 502 is provided at the front end; positioning edges 503 are provided on the upper and lower surfaces respectively; and the left and right directions are divided into a multi-channel clamp body 504, which can improve the closing effect. Example

[0061] Refer to the attached Figures 1 to 8 The multi-channel tissue clamp continuous clamp adopts the following technical solutions to achieve manufacturing and use:

[0062] A. Manufacturing of multi-channel tissue clips and continuous clamps:

[0063] A1, push the above-mentioned multi-channel tissue clip 5 into the hollow tube of the clamp seat tube 33 of the clamp mechanism 3, with the U-shaped opening of the multi-channel tissue clip 5 facing forward, until the positioning edges 503 on the upper and lower sides of the multi-channel tissue clip 5 reach the front end of the positioning pieces 331 on the upper and lower sides of the clamp seat tube. Then push more multi-channel tissue clips 5 into the clamp seat tube 33 in sequence and in the same direction until the front and back are connected and the spacing is consistent. Check each multi-channel tissue clip 5 from the gap between the positioning pieces 331 on the upper and lower sides of the clamp seat tube 33, and the positioning edges 503 should all be at the front end of the positioning pieces 331 and in contact.

[0064] A2, such as Figure 6 The front push pin 41 and the rear push pin 42 are assembled symmetrically, so that the front end face of the first movable push tooth 420 of the rear push pin 42 is aligned with the rear end face of the first push tooth 411 of the front push pin 41, and the number of push teeth is equal to the number of multi-channel tissue clips 5. The front push pin 41 is inserted into the hollow tube of the clamp seat tube 33 until the front end face of the front push pin 41 contacts the rear end face of the last multi-channel tissue clip 5. Check whether the round hole 421 of the rear push pin 42 is exposed to the rear side position of the push pin slot 332 of the clamp seat tube 33, and the length of the push pin slot 332 is greater than the single length of the multi-channel tissue clip.

[0065] A3, put the clamping tube 31 on the outer wall of the clamp seat tube 33 with the rear end cover 314 facing backward, and the clamping pieces 310 on both sides of the front end of the clamping tube 31 are located on both sides of the front end of the clamp seat tube 33, and then put the clamping return spring 32 on the rear end of the outer tube wall of the clamping tube 31.

[0066] A4, take the upper clamp head 34, appropriately expand the upper wing pieces 342 on both sides and insert them into the two sides of the clamp seat tube 33, and move the position so that the upper clamp head shaft 343 on the inner side of the upper wing pieces 342 is embedded in the clamp head shaft holes 330 on both sides of the front end of the clamp seat tube 33. In the same way, take down the clamp head 35, appropriately expand the lower wing pieces 352 on both sides and insert them into the two sides of the clamp seat tube 33, and move the position so that the lower clamp head shaft 353 on the inner side of the lower wing pieces 352 is embedded in the clamp head shaft holes 330 on both sides of the front end of the clamp seat tube 33. The clamp head is installed in a symmetrical manner, and the upper and lower positions can be changed without affecting the effect, but the upper U-shaped groove 340 of the upper clamp head 34 and the lower U-shaped groove 350 of the lower clamp head 35 should be in a face-to-face state, so that the upper bite teeth 341 and the lower bite teeth 351 can bite correspondingly.

[0067] A5, appropriately expand the clamping piece 310 at the front end of the clamping tube 31 to both sides, so that the upper opening and closing axis 344 on the outer side of the upper wing 342 of the upper clamp head 34 is inserted into the clamping guide groove 311 on the inner side of the clamping piece 310 at the front end of the clamping tube 31. In the same way, the lower opening and closing axis 354 on the outer side of the lower wing 352 of the lower clamp head 35 is also inserted into another clamping guide groove 311 on the inner side of the clamping piece 310 at the front end of the clamping tube 31. The front and rear sliding of the clamping tube 31 should be able to drive the upper clamp head 34 and the lower clamp head 35 to open and close, so that the clamping tube 31 and the clamp seat tube 33 can only rotate synchronously and slide axially. The push pin groove 313 at the rear end of the clamping tube 31 should be a circular hole 421 that penetrates the clamping tube 31, the clamp seat tube 33 and the rear push pin 42. At this time, the push pin pin 43 is passed through the circular hole 421 of the clamping tube 31, the clamp seat tube 33 and the rear push pin 42. The push pin pin 43 and the circular hole 421 of the rear push pin 42 are fixedly installed, and the push pin pin 43 and the clamping tube 31 and the clamp seat tube 33 are movably connected. The length of the push pin pin 43 is equal to the outer diameter of the clamping tube 31, and does not affect the sliding movement of the clamping reset spring 32 on the outer wall of the clamping tube 31.

[0068] A6, place the half piece of the fixed handle 20 on a stable table with the inner cavity facing upward. Take the half piece of the rotating wheel 21, and insert the rear end into the front large diameter of the cylindrical groove 212 of the fixed handle 20. The rotating wheel 21 can rotate but is restricted from axial movement.

[0069] A7, take the A1~A5 assembled parts, take the clamping handle 30, and insert the forked top head 302 on the upper part of the clamping handle 30 into the two sides of the clamp seat tube 33 exposed at the rear end of the A1~A5 assembled parts, and locate between the rear cover 333 of the clamp seat tube 33 and the rear end cover 314 of the clamping tube 31. Insert the A1~A5 assembled parts and the clamping handle 30 downward into the A6 assembled part, the central axis hole 300 of the clamping handle 30 is adapted to the shaft column 201 of the fixed handle 20, the rear cover 333 of the clamping tube 33 is adapted to the rear section of the large diameter of the cylindrical groove 202 of the fixed handle 20 (it can rotate but is restricted from axial movement), and the rear end cover 314 of the clamping tube 31 is adapted to the middle section of the large diameter of the cylindrical groove 202 of the fixed handle 20 (it can rotate and move axially). The clamping tube 31 is adaptively inserted into the passage of the rotating wheel 21, and the rotation synchronization slot 312 of the clamping tube 31 is adaptively nested into the rotation synchronization pile 210 of the rotating wheel 21 (the raised end surface of the rotation synchronization pile 210 is in contact with the outer walls of the clamp seat tube 33 on both sides), and the clamping reset spring 32 is appropriately compressed so that its front end surface contacts the small diameter between the front section and the middle section of the cylindrical groove 202 of the fixed handle 20, and the rear end surface contacts the front end surface of the rear end cover 314 of the clamping tube 31.

[0070] A8, the other half of the rotating wheel 21 is embedded and installed, and the two rotating wheels form a fixed plum blossom-shaped cone. The other half of the fixed handle 20 is embedded and installed again, and the two fixed handles form a fixed pistol-type gripping mechanism 2.

[0071] B. Use of the multi-channel tissue clamp continuous clamp 1: comprising a holding mechanism 2, a clamping mechanism 3, a closing mechanism 4, and a multi-channel tissue clamp 5.

[0072] B1, the symmetrical holding mechanism 2 can meet the needs of people with different habits of left and right hands. When in use, hold the fixed handle 20, with the base of the palm located at the rear of the fixed handle, and the index finger hooks the upper part of the pressure handle 30 to stably hold the multi-channel tissue clamp continuous clamp.

[0073] B2, pinch the clamp handle 30 appropriately to close the upper clamp head 34 and the lower clamp head 35, and then the central hole of the micro-hole laparoscopic puncture can be passed through. The central aperture of the more commonly used laparoscopic puncture is 8-12mm. After passing through the central hole of the laparoscopic puncture, the clamp handle 30 can be released and the clamp head will open automatically. If necessary, repeat the opening and closing action of the clamp head to establish the surgical channel, clamp and position the tissue. The upper occlusal teeth 341 and the lower occlusal teeth 351 corresponding to the closing surfaces of the upper clamp head 34 and the lower clamp head 35, respectively, can bite each other to increase the anti-slip performance of the tissue. The lower clamp head 35 is also equipped with a hook knife 355, which can help medical personnel to puncture and peel the distal invisible tissue.

[0074] B3, when the forceps head reaches the tissue to be ligated and closed, the rotating wheel 21 can be rotated to drive the forceps head to rotate and adjust the direction through the clamp pressure tube 31, clamp seat tube 33 and other structures until it is nearly perpendicular to the tissue to be ligated and closed. After the tissue here is peeled off and all the tissue here enters the closing surface of the upper forceps head 34 and the lower forceps head 35, it means that this model of multi-channel tissue clamp 5 meets the closing and ligation requirements of the tissue here, which is an auxiliary measurement function. If the tissue here cannot enter the closing surface of the upper forceps head 34 and the lower forceps head 35, it is necessary to replace other larger models of multi-channel tissue clamps and continuous clamps for ligation and closure.

[0075] B4, after the process of B3, all tissues enter the closing surface of the upper clamp head 34 and the lower clamp head 35, and the clamp pressing handle 30 is continued to be pinched, and the burst clamp 1 pushes the multi-channel tissue clamp 5 to move forward, and the flattened tissue enters the closing surface 500 through the introduction port 502 of the multi-channel tissue clamp 5. There are more closing teeth 501 on the upper and lower sides of the closing surface 500 to increase the closing effect and anti-slip performance. As a result, the multi-channel clamp body 504 of the multi-channel tissue clamp 5 compresses and closes this place, and a "flat-drum-flat" ligature of the tubular cavity tissue is formed between the multi-channel clamp bodies 504. The multi-channel clamp bodies 504 are mutually reinforced fixed connections, forming parallel and parallel multi-channel closed ligature lines, which greatly improves the ligature closing effect, and the ligature effect can be ensured without multiple clamping.

[0076] B5, release the clamp handle 30, the clamp tube 31 moves backward to drive the upper clamp head 34 and the lower clamp head 35 to open, releasing the ligated and closed lumen tissue. If necessary, the medical staff can perform tissue severance operation.

[0077] B6, Multiple-channel tissue clips and continuous clamps 1. Carry more than two pieces into the body cavity at one time. If necessary, you can repeat B2~B5 actions continuously to ligate and close multiple tissues. If there is tissue movement during the process, you can also use the clamping function of the multiple-channel tissue clips and continuous clamps 1 to adjust the tissue directly to ensure a smooth surgical channel.

Claims

1. A multi-channel tissue clip continuous clamp, characterized in that: It comprises a holding mechanism (2), a clamping mechanism (3) and a closing mechanism (4); The holding mechanism (2) comprises a fixed handle (20) and a rotating wheel (21); The fixed handle (20) is a pistol-type structure composed of two left and right pieces. A coaxial cylindrical groove (202) is provided on the inner side of the fixed handle (20). The front end of the cylindrical groove (202) is adaptively connected to the rotating wheel (21), so that the rotating wheel (21) can rotate but cannot move axially. The clamping mechanism (3) is composed of a clamping handle (30), a clamping tube (31), a clamping return spring (32), a clamp seat tube (33), an upper clamp head (34), and a lower clamp head (35); The clamping handle (30) is provided with a central axis hole (300) and can be mounted on the shaft column (201) inside the fixed handle (20) to perform lever rotation movement. The lower end of the clamping handle (30) is provided with an arc trigger (301) suitable for finger gripping and pressing. The upper end of the clamping handle (30) is provided with a head (302), and the front end of the head (302) contacts the rear end cover (314) of the clamping tube (31); when the arc trigger (301) is pressed backward, the head (302) will move forward, pushing the rear end cover (314) to make the clamping tube (31) move forward synchronously; The clamping tube (31) is a hollow circular tube. The front end of the clamping tube (31) is provided with two symmetrical clamping pieces (310). The inner sides of the clamping pieces (310) are provided with clamping guide grooves (311). The rear part of the clamping tube (31) is provided with a rotation synchronization slot (312) and a push clamping slot (313) penetrating the tube wall. The rear end of the clamping tube (31) is fixedly provided with a rear end cover (314). The middle of the rear end cover (314) is provided with a hole through which the adapter clamp seat tube (33) passes. The clamp pressure return spring (32) is sleeved on the outer circumference of the clamp pressure tube (31), one end of the clamp pressure return spring (32) contacts the rear end cover (314), and the other end of the clamp pressure return spring (32) contacts the end surface of the cylindrical groove (202) inside the fixed handle (20), so that the clamp pressure tube (31) can move forward and return to the initial position after being compressed; The clamp seat tube (33) is a hollow square tube, the outer circumference of which can be coaxially and adaptively mounted inside the clamping tube (31). Clamp head shaft holes (330) are symmetrically arranged on both sides of the front end of the clamp seat tube (33) for adaptively connecting the rotating shafts of the upper clamp head (34) and the lower clamp head (35); The closing mechanism (4) is composed of a front push pin (41), a rear push pin (42), and a push pin pin (43); The front end of the front push needle (41) is adaptively sleeved on the inner wall of the clamp seat tube (33), and the front end surface of the front push needle (41) contacts the rear end of the multi-channel tissue clamp (5); a plurality of positioning edges (410) are provided on the upper side of the front end of the front push needle (41), and the spacing between the plurality of positioning edges is equal to the length of the multi-channel tissue clamp; the positioning edges cooperate with the positioning pieces (331) of the clamp seat tube (33), so that the front push needle can only move forward but cannot move backward, and the middle rear section of the front push needle (41) is half of the front section, and a plurality of fixed backward pushing teeth (411) are provided on the middle surface facing upward, and the spacing between the plurality of pushing teeth is equal to the length of the multi-channel tissue clamp; The front end cross-section of the rear push needle (42) is half of the rear part, and a plurality of movable forward push teeth (420) are provided downwardly on the middle surface of the rear push needle (42). The height and spacing of the plurality of push teeth can be adaptively embedded in the middle and rear part of the front push needle (41). The rear cross-section of the rear push needle (42) is adapted to the inner wall of the clamping tube (31), and penetrating circular holes (421) are provided on the left and right sides.

2. The multi-channel tissue clip continuous clamp according to claim 1, characterized in that: The inner side of the fixed handle (20) is provided with a coaxial cylindrical groove (202), the middle part of which is adapted to the clamping tube (31), so that the clamping tube (31) can rotate and move axially forward and backward; the rear part of the cylindrical groove (202) is adapted to the clamping seat tube (33), so that the clamping seat tube (33) can rotate but cannot move axially. The inner side of the fixed handle (20) is also provided with a shaft column (201) for adapting to the central axis hole (300) of the clamping handle (30); the above-mentioned rotating wheel (21) is a plum petal structure composed of two left and right pieces, and is adaptively embedded in the front end of the cylindrical groove (202) inside the fixed handle (20), and can rotate but cannot move axially.

3. The multi-channel tissue clip continuous clamp according to claim 1, characterized in that: A passage (211) adapted to fit the clamping tube (31) is provided inside the rotating wheel (21), and a protruding rotation synchronization pile (210) is also provided in the passage (211) for inserting into a rotation synchronization slot (312) on the outer wall of the clamping tube (31), so that the rotating wheel (21) drives the clamping tube (31) to rotate synchronously when the rotating wheel (21) rotates.

4. The multi-channel tissue clip continuous clamp according to claim 1, characterized in that: The front end upper and lower sides of the clamp seat tube (33) are symmetrically provided with a plurality of positioning pieces (331) extending toward the inner wall of the square tube, which are used to position a corresponding number of multi-channel tissue clips so that they are arranged in sequence at the same distance. The front end upper and lower sides of the clamp seat tube (33) are also provided with observation holes for observing the multi-channel tissue clips. The rear end of the clamp seat tube (33) is provided with push pin slots (332) penetrating on both sides, which are used to adapt to the push pin pin for installation and connection. The length of the push pin slots (332) is adapted to the length of the multi-channel tissue clip. The rear end of the clamp seat tube (33) is fixedly provided with a rear cover (333). The middle of the rear cover (333) is provided with a hole adapted to allow the push pin to pass through. The rear cover (333) can be adaptively embedded in the rear part of the inner cylindrical groove (202) of the fixed handle (20), so that it can rotate but cannot move axially.

5. The multi-channel tissue clip continuous clamp according to claim 1, characterized in that: The front end of the upper clamp head (34) is an upper U-shaped groove (340), the cross section of the U-shaped groove is half of the cross section of the clamp seat tube (33), and the two edges of the U-shaped groove are provided with upper engaging teeth (341); the rear end of the upper clamp head (34) is two upper clamp head wing pieces (342), and the inner sides corresponding to the two upper clamp head wing pieces are protrudingly provided with an upper clamp head shaft (343) that is adapted to the clamp head shaft hole (330) at the front end of the clamp seat tube (33); the outer sides corresponding to the two upper clamp head wings are provided with an upper opening and closing shaft (344) that is adapted to the clamp pressure guide groove (311) at the front end of the clamp pressure tube (31), and when the clamp pressure tube moves forward and backward, the upper clamp head is positioned by the upper clamp head shaft (343) and the upper opening and closing shaft (344) slides to form an opening and closing movement close to or away from the central axis surface.

6. The multi-channel tissue clip burst clamp according to claim 1, characterized in that: The front end of the lower clamp head (35) is a lower U-shaped groove (350), the cross section of the U-shaped groove is half of the cross section of the clamp seat tube (33), and the two edges of the U-shaped groove are provided with lower bite teeth (351), and the lower bite teeth (351) and the upper bite teeth (341) form a staggered cross shape when closed; the rear end of the lower clamp head (35) is two lower clamp head wing pieces (352), and the inner sides corresponding to the two lower clamp head wing pieces are protrudingly provided with lower clamp head shafts (353) adapted to the clamp head shaft holes (330) at the front end of the clamp seat tube (33); the outer sides corresponding to the two lower clamp head wings are provided with lower opening and closing shafts (354) adapted to the clamp pressure guide grooves (311) at the front end of the clamp pressure tube (31), and when the clamp pressure tube moves forward and backward, the lower clamp head is positioned by the lower clamp head shaft (353) and the lower opening and closing shaft (354) slides to form an opening and closing movement close to or away from the central axis surface.

7. The multi-channel tissue clip continuous clamp according to claim 1, characterized in that: A hook knife (355) is also provided at the front end of the lower U-shaped groove (350) of the lower clamp head. The height of the hook knife exceeds the mid-axis surface and is used for separating, hooking and positioning human tissue to prevent the human tissue from falling off after clamping.

8. The multi-channel tissue clip burst clamp according to claim 1, characterized in that: The push pin pin (43) is no less than the outer diameter of the clamping tube (31) in length, and penetrates and movably connects the circular hole (421) of the rear push pin (42), the push pin slot hole (332) of the clamping seat tube (33), and the push clamp slot hole (313) of the clamping tube (31).

9. The multi-channel tissue clip burst clamp according to claim 1, characterized in that: The inner wall of the clamp seat tube (33) is adapted to accommodate the multi-channel tissue clamps (5), and the multi-channel tissue clamps (5) are coaxially and spaced in sequence within the clamp seat tube (33).

10. The multi-channel tissue clip continuous clamp according to claim 1 or 9, characterized in that: The multi-channel tissue clamp (5) is in the shape of a U-shaped rectangular parallelepiped, adapted to the inner wall of the clamp seat tube (33), and has a closing surface (500) for accommodating tubular cavity tissue on the middle surface in the upper and lower directions, the closing surface is provided with closing teeth (501), and an introduction port (502) is provided at the front end; positioning edges (503) are provided on the upper and lower surfaces respectively; and the left and right directions are divided into a multi-channel clamp body (504), which can improve the closing effect.

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