A memory hemostatic clip and a clamp applicator and a clamp holder for both opening and clamping

Abstract

The present invention discloses a clamping forceps and a clamp seat for dual-purpose memory hemostatic clip and expansion type clamping. The memory hemostatic clip comprises two clamp arms with automatic clamping elastic force. The two clamp arms are in a clamping state in a reset state. The clamp seat is used to store the memory hemostatic clip. The expansion type clamping and dual-purpose clamping forceps comprises a clamp opening and closing device and a handle assembly. The clamp opening and closing device and the handle assembly are transmission-connected. The clamp opening and closing device is normally in a closed state. The handle assembly comprises a driving handle. When the driving handle is pulled, the clamp opening and closing device opens to remove the memory hemostatic clip from the clamp seat. When clamping the target tissue, the driving handle is released. The memory hemostatic clip clamps the target tissue under the action of its own elastic force and the closing restoring force of the clamp opening and closing device. The present invention has the dual-purpose integrated function of clamping and removing, does not require secondary repair surgery to remove the hemostatic clip, does not have mechanical damage and injury, is safer and has high efficiency.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a memory hemostatic clip and a clamp applicator and a clamp seat for dual-purpose of expansion-type clamping. Background Art

[0002] A hemostatic clip is a surgical instrument that clamps a blood vessel to block blood flow, and a clip applier is used to clamp a hemostatic clip. After the existing hemostatic clip is clamped, a secondary repair surgery is often required to remove the hemostatic clip, causing mechanical damage and secondary injury. In addition, the existing clip applier is difficult to hold, and it is time-consuming and laborious to use the clip applier to clamp the hemostatic clip. In addition, the hemostatic clip and the clamp of the clip applier do not fit tightly enough, and the hemostatic clip is easy to fall out of the clamp. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a safe, reliable and efficient dual-purpose clamp applicator that does not require secondary cutting of the hemostatic clip, as well as a memory hemostatic clip and a clamp seat for use with it.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A memory hemostatic clamp comprises two clamp arms with automatic clamping elastic force. The two clamp arms are in a clamping state in a reset state.

[0006] Preferably, the ends of the two clamping arms are provided with limiting flat heads.

[0007] A clamp seat matched with the memory hemostatic clip, the clamp seat is used to store the memory hemostatic clip, and when storing, the two clamp arms of the memory hemostatic clip are in an open state.

[0008] Preferably, a plurality of clamp guide grooves are evenly arranged on the clamp seat, and a hemostatic clip storage groove cooperating with the memory hemostatic clip is arranged in the clamp guide groove.

[0009] The expandable clamping and taking dual-purpose clamping forceps used in conjunction with the clamp seat include a clamp opening and closing device and a handle assembly. The clamp opening and closing device and the handle assembly are transmission-connected. The clamp opening and closing device cooperates with the memory hemostatic clip. The clamp opening and closing device is normally in a closed state. The handle assembly includes a drive handle. When the drive handle is pulled, the clamp opening and closing device opens to remove the memory hemostatic clip from the clamp seat. When clamping the target tissue, the drive handle is released. The memory hemostatic clip clamps the target tissue under the action of its own elastic force and the closing restoring force of the clamp opening and closing device.

[0010] Preferably, it also includes a top clamping device, a positioning device, a self-locking device, and a clamp rod rotating device;

[0011] The clamp opening and closing device comprises a clamp body, a clamp seat, and a push rod head, the clamp body is composed of two clamp claws that cooperate with each other, the middle parts of the two clamp claws are hinged by a pin shaft, the heads of the two clamp claws are provided with protruding clamping steps facing each other, the clamping steps are provided with a card hole for the end of the memory hemostatic clamp to enter, the clamp seat is provided with two supporting ears, the supporting ears are provided with holes, the clamp body is installed between the two supporting ears through the pin shaft to cooperate with the holes, the clamp seat is also provided with a push rod head assembly hole, the push rod head cooperates with the push rod head assembly hole shaft hole, the head of the push rod head is provided with two groups of eight-shaped guide grooves, the tail of the clamp claw is provided with a control pin that cooperates with the eight-shaped guide groove, the push rod head is provided with a return spring, the tail of the push rod head is fixed with a push rod, one end of the return spring cooperates with the bottom of the clamp seat, and the other end is fixed to the push rod head;

[0012] The top clamp device comprises a top clamp and a top rod, a top rod assembly hole is provided on the push rod head, the top clamp and the top rod are arranged in the top rod assembly hole, the top clamp cooperates with the memory hemostatic clamp, the top clamp and the top rod are fixed, a No. 1 long strip hole is provided on the top rod, a No. 2 long strip hole cooperating with the No. 1 long strip hole is provided on the push rod head, a stop pin hole is provided on the clamp seat, a spring stop pin is arranged in the stop pin hole, the No. 1 long strip hole and the No. 2 long strip hole, a top rod spring is provided on the top rod, one end of the top rod spring cooperates with the tail of the top clamp, and the other end cooperates with the spring stop pin;

[0013] The positioning device comprises a positioning base, a semicircular shaft, a positioning fork, and a top clamp driving rod. The positioning base is provided with an action hole, and a positioning ball and a positioning spring are arranged in the action hole in sequence. The diameter of the positioning ball is larger than the diameter of the action hole opening, and the positioning ball abuts against the action hole opening. One end of the positioning spring abuts against the bottom of the action hole, and the other end cooperates with the positioning ball. The positioning fork is arranged on the semicircular shaft and rotates in cooperation with the semicircular shaft. The positioning fork is provided with a positioning notch that cooperates with the positioning ball. The top clamp driving rod is provided with an annular groove. The positioning fork is also provided with a fork tooth that cooperates with the annular groove. The fork tooth drives the top clamp driving rod to move forward and backward. The top clamp driving rod is sleeved on the top rod. A fixed locking sleeve is provided at the end of the top rod. The locking sleeve is used to block the top clamp driving rod. The top clamp driving rod cooperates with the push rod and acts synchronously.

[0014] The self-locking device comprises a self-locking base and a self-locking cam. The self-locking base is provided with a self-locking hole. A self-locking spring and a locking pin are provided in the self-locking hole. One end of the self-locking spring abuts against the top of the self-locking hole, and the other end cooperates with the top of the locking pin. The diameter of the top of the locking pin is larger than the diameter of the lower hole of the self-locking hole. The self-locking cam cooperates with the semicircular shaft and rotates synchronously with the semicircular shaft. A No. 1 step is provided on the top of the locking pin. A No. 2 step cooperating with the No. 1 step is provided on the self-locking cam. The locking pin cooperates with the step formed by the annular groove.

[0015] The clamp rod rotating device comprises a base, a clamp rod seat is fixed on the base, a damping hole is provided on the clamp rod seat, a rotating sleeve is rotatably provided on the clamp rod seat, a damping spring and a damping ball matched with the damping spring are provided on the rotating sleeve, the damping ball matches with the damping hole, a clamp driving rod is sleeved on the top rod, the clamp driving rod matches with the top clamp driving rod, a push rod ball head is also sleeved on the top rod, the push rod ball head is universally hinged with the clamp driving rod, the front end of the push rod ball head is fixed with the push rod, a clamp rod is sleeved on the clamp seat, the clamp seat is fixed with the front end of the clamp rod, a rotating handle is sleeved on the clamp rod, and the rotating handle is fixed with the rotating sleeve;

[0016] The handle assembly comprises a driving handle hinged on the base, the top end of the driving handle cooperates with the clamp driving rod, and the driving handle rotates to push the clamp driving rod to move forward.

[0017] Preferably, the clamping step is provided with an entrance guide groove for facilitating the entry of the memory hemostatic clip, the inner side of the clamp claw is also provided with a limit groove connected to the clamp hole and a clamp holding groove connected to the limit groove, and the clamp claw is provided with a top clamp groove.

[0018] Preferably, an adjusting screw for adjusting the tightness of the positioning spring is also provided in the action hole.

[0019] Preferably, the semicircular shaft is provided with a fork handle which rotates synchronously with the semicircular shaft.

[0020] Preferably, the positioning fork is provided with a special-shaped hole matching the semicircular shaft, and the side wall of the special-shaped hole is provided with adjacent corner limiting planes. When one of the corner limiting planes is assembled and fit with the side plane of the semicircular shaft, it forms a corner with the other corner limiting plane.

[0021] Preferably, the driving handle is provided with a hooked support ear.

[0022] The beneficial effects of the present invention are:

[0023] (1) The conventional clamp is normally in the open state. The conventional clamp controls the clamp to forcefully close so that the hemostatic clip is plastically deformed and clamped to complete the clamping or biological clamp structure locking closure. The present expansion clamp is normally in the closed state. The present expansion clamp is placed in the clamping tissue site by applying force to expand the memory hemostatic clip, and the tension is released from large to small at the target position of the clamp to complete the clamping. The maximum clamping force is the memory recovery force of the expanded memory hemostatic clip, that is, the memory recovery clamping force designed based on the size of the required clamping force of the clamping tissue site. This force is generally much smaller than the forced clamping force of the traditional principle, and will not cause accidents such as tissue injury, deformation, damage or breakage of the hemostatic clip, and clip peeling due to excessive forced force, making the clamping process safer, more reliable, and easier to operate, thereby improving the success rate of implementation.

[0024] (2) It has the dual functions of clip application and clip removal. There is no need for secondary repair surgery to remove the hemostatic clip. There is no mechanical damage or injury, which saves operation time and clip removal cost. It causes little damage to tissue parts and has no risk of damage or breakage caused by strong pressure clamping. It is safer and more efficient.

[0025] (3) The entrance guide groove is aligned with the memory hemostatic clip, which is convenient and quick to position. The memory hemostatic clip follows the entrance guide groove and the clamp holding groove into the interior of the clamp body, and finally the limiting flat head is stuck in the limiting groove and the end of the memory hemostatic clip enters the clamp hole, so that the memory hemostatic clip is completely fixed inside the clamp body, and the clamping is completed. The memory hemostatic clip and the clamp body are closely matched, which completely avoids the memory hemostatic clip from falling out of the clamp body, prevents accidents during surgical clamping, and greatly improves the accuracy and safety of surgical clamping.

[0026] (4) The push rod spring is in a compressed state, exerting a restoring force on the top clamp to clamp forward, that is, the top clamp is always close to the tail of the memory hemostatic clip, further improving the tightness of the memory hemostatic clip and the clamp body, and preventing the memory hemostatic clip from loosening or accidentally falling out.

[0027] (5) The top clamp positioning device of the clip applicator realizes the switching between the forward push position and the backward push position. The positioning device cooperates with the self-locking device to realize self-locking of the top clamp driving rod when switching to the backward push position, thereby preventing the top clamp device with automatic forward push function from automatically pushing forward, and reserving space for the hemostatic clip to extend forward and detach from the clamp of the clip applicator so as to carry out the clamping work and improve the safety of clamping.

[0028] (6) The positioning fork is provided with an angle limit plane. When unlocking, it is rotated an angle in advance to make the lock pin of the self-locking device rise in advance and unlock in advance. Then the fork handle is rotated clockwise to make the top clamp drive rod move forward and restore the automatic front push function of the top clamp device. The asynchronous rotation realizes hysteresis control to prevent the positioning device and the self-locking device from interfering and getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the memory hemostatic clip structure;

[0030] Figure 2 It is a schematic diagram of the clamping seat structure;

[0031] Figure 3 It is a schematic diagram of the structure of the clamp body;

[0032] Figure 4 It is a schematic diagram of the structure of the clamp opening and closing device;

[0033] Figure 5 It is a schematic diagram of the top clamping device structure;

[0034] Figure 6 is a schematic diagram of the positioning device structure;

[0035] Figure 7 It is a schematic diagram of the structure of the self-locking device;

[0036] Figure 8 It is a schematic diagram of the matching structure of the positioning fork, self-locking cam, fork handle and semicircular shaft;

[0037] Fig. 9 It is a schematic diagram of the matching structure of the clamp rod seat and the rotating sleeve;

[0038] Fig.10 This is a schematic diagram of holding the clip;

[0039] Fig.11 It is a schematic diagram of the overall structure of the present invention;

[0040] In the figure, 1-top clamp, 2-connecting pin, 3-top rod spring, 4-top rod, 5-spring stop pin, 6-top clamp driving rod, 8-locking sleeve, 12-positioning fork, 13-self-locking cam, 16-fork handle, 17-semicircular shaft, 19-adjusting screw, 20-positioning spring, 21-positioning ball, 22-positioning base, 23-self-locking spring, 24-locking pin, 25-self-locking base, 27-clamp body, 28-pin shaft, 29-clamp seat, 30-push rod head, 31-spring retaining ring, 32-return spring, 33-push rod, 34-push rod ball head, 35-clamp driving rod, 36- Clamp rod, 37-swivel handle, 41-swivel sleeve, 43-damping spring, 44-damping ball, 46-clamp rod seat, 49-base, 53-drive handle, 55-clamp seat, 56-memory hemostatic clip, 57-card hole, 58-clamp claw, 59-control pin, 61-top clamp groove, 62-clamp holding groove, 63-limiting groove, 64-entrance guide groove, 68-limiting flat head, 69-fork tooth, 70-positioning notch, 71-corner limiting plane, 72-ring groove, 73-step No. 2, 74-step No. 1, 75-clamp guide groove, 76-hemostatic clip storage groove, 77-damping hole, 78-hook support ear. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-11 , the present invention provides a technical solution:

[0043] A memory hemostatic clip includes two clamping arms with automatic clamping elastic force. The two clamping arms are in a clamping state in the reset state. The connection between the two clamping arms is an arc circle. The ends of the two clamping arms are provided with a limit flat head 68. The memory hemostatic clip 56 is made of memory alloy. The two arms have automatic clamping elastic force. The normal state is that the two clamping arms are naturally parallel and closed. The ends are provided with a limit flat head 68. The arc circle transition at the tail of the two clamping arms can store force and disperse node stress. The arc circle center and the hinge center of the pin 28 are concentrically designed so that the memory hemostatic clip 56 does not produce relative displacement forward and backward during the opening and closing process controlled by the clamp. The memory hemostatic clip 56 can obtain the required constant elastic clamping force by adjusting the size, and can be reused after qualified disinfection. It can be clamped for a long time without the side effects of degradable materials.

[0044] A clamp seat for matching the memory hemostatic clip, the clamp seat 55 is used to store the memory hemostatic clip 56, and when storing, the two clamp arms of the memory hemostatic clip 56 are in an open state. Furthermore, the clamp seat 55 is evenly provided with a plurality of clamp guide grooves 75, and the clamp guide grooves 75 are provided with a hemostatic clip storage groove 76 matching the memory hemostatic clip 56. The clamp seat 55 has the functions of clamp storage and clip taking guide, which is convenient for taking, packaging, storage, transportation and counting of the open clamp applicator, and is convenient for disinfection and reducing pollution.

[0045] The expandable and dual-purpose clamping forceps used in conjunction with the above-mentioned memory hemostatic clip and clamp seat include a clamp opening and closing device and a handle assembly. The clamp opening and closing device and the handle assembly are transmission-connected. The clamp opening and closing device cooperates with the memory hemostatic clip. The clamp opening and closing device is normally in a closed state. The handle assembly includes a drive handle 53. When the drive handle 53 is pulled, the clamp opening and closing device opens to remove the memory hemostatic clip from the clamp seat. When clamping the target tissue, the drive handle 53 is released. The memory hemostatic clip clamps the target tissue under the action of its own elastic force and the closing restoring force of the clamp opening and closing device.

[0046] Furthermore, it also includes a top clamping device, a positioning device, a self-locking device, and a clamp rod rotating device.

[0047] The clamp opening and closing device includes a clamp body 27, a clamp seat 29, and a push rod head 30. The clamp body 27 is composed of two clamp claws 58 that cooperate with each other. The middle parts of the two clamp claws 58 are hinged by a pin shaft 28. The heads of the two clamp claws 58 are provided with protruding clamping steps facing each other. The clamping steps are provided with an entrance guide groove 64 for facilitating the entry of the memory hemostatic clip 56. The clamping steps are provided with a clamping hole 57 for the end of the memory hemostatic clip 56 to enter. The inner side of the clamp claw 58 is also provided with a limiting groove 63 connected to the clamping hole 57 and a clamping groove 62 connected to the limiting groove 63. The clamp claw 58 is provided with a top clamping groove 61 for cooperating with the top clamp 1. The clamp seat 29 is provided with two ears, and the ears are provided with holes. The clamp body 27 is installed between the two ears through the pin shaft 28 to match the holes. The clamp seat 29 is also provided with a push rod head assembly hole, and the push rod head 30 is matched with the shaft hole of the push rod head assembly hole. The head of the push rod head 30 is provided with two groups of eight-shaped guide grooves. The tail of the clamp claw is provided with a control pin 59 that matches the eight-shaped guide groove. The push rod head 30 is provided with a return spring 32, and a push rod 33 is fixed to the tail of the push rod head 30. One end of the return spring 32 matches the bottom of the clamp seat 29, and the other end is fixed to the head of the push rod 33. Further, the push rod head 30 is provided with a spring retaining ring 31, which fits the bottom of the clamp seat 29, and the push rod 33 is fixed to the tail of the push rod head 30. One end of the return spring 32 matches the spring retaining ring 31, and the other end is fixed to the head of the push rod 33. In order to cooperate with the memory hemostatic clip 56 which is normally closed, the present clamp is of the open type, that is, it is normally closed, the return spring 32 is in a compressed state, the clamp seat 29 is fixed relative to the entire clamp, the return spring 32 applies a clamping restoring force to make the push rod head 30 move backward, and the control pin 59 cooperates with the eight-shaped guide groove to close the clamp body 27. The conventional clamping clamp controls the clamp to be forcibly closed to make the hemostatic clip produce plastic deformation and clamping to complete the clamping or biological clip structure locking closure, while the present open type clamp applies force to open the memory hemostatic clip 56 The clamp is placed in the clamping tissue part, and the tension is released from large to small at the target position of clamping to complete the clamping. The maximum clamping force is the memory recovery force of the memory hemostatic clip 56, that is, the memory recovery clamping force designed based on the required clamping force of the clamping tissue part. This force is generally much smaller than the forced clamping force of the traditional principle, and will not cause accidents such as tissue injury, deformation, damage or breakage of the hemostatic clip, and clip peeling due to excessive forced force. The clamping process is safer, more reliable, and easier to operate, thereby improving the success rate of implementation.

[0048] The top clamp device includes a top clamp 1 and a push rod 4. The push rod head 30 is provided with a push rod assembly hole. The top clamp 1 and the push rod 4 are arranged in the push rod assembly hole. The top clamp 1 cooperates with the memory hemostatic clamp 56. The top clamp 1 and the push rod 4 are fixed. The push rod 4 is provided with a No. 1 long hole. The push rod head 30 is provided with a No. 2 long hole that cooperates with the No. 1 long hole. The clamp seat 29 is provided with a stop pin hole. The stop pin hole, the No. 1 long hole, and the No. 2 long hole are provided with a spring stop pin 5. The push rod 4 is provided with a push rod spring 3. One end of the push rod spring 3 cooperates with the tail of the top clamp 1, and the other end cooperates with the spring stop pin 5. The push rod spring 3 is in a compressed state, and applies a restoring force to the top clamp 1 to clamp forward, that is, the top clamp 1 is always close to the tail of the memory hemostatic clamp 56, further improving the tightness of the memory hemostatic clamp 56 and the clamp body 27, and preventing the memory hemostatic clamp 56 from loosening or accidentally falling out.

[0049] The positioning device comprises a positioning base 22, a semicircular shaft 17, a positioning fork 12, and a top clamp driving rod 6. The positioning base 22 is provided with an action hole, and a positioning ball 21 and a positioning spring 20 are arranged in the action hole in sequence. The diameter of the positioning ball 21 is larger than the diameter of the action hole opening. The positioning ball 21 abuts against the action hole opening. One end of the positioning spring 20 abuts against the bottom of the action hole, and the other end cooperates with the positioning ball 21. The positioning fork 12 is arranged on the semicircular shaft 17 and rotates in cooperation with the semicircular shaft 17. There is a positioning notch 70 that cooperates with the positioning ball 21, an annular groove 72 is provided on the top clamp driving rod 6, and a fork tooth 69 that cooperates with the annular groove 72 is also provided on the positioning fork 12. The fork tooth 69 drives the top clamp driving rod 6 to move forward and backward. The top clamp driving rod 6 is sleeved on the top rod 4. The end of the top rod 4 is provided with a fixed lock sleeve 8. The lock sleeve 8 is used to block the top clamp driving rod 6. The top clamp driving rod 6 cooperates with the push rod 33 and moves synchronously. The semicircular shaft 17 is provided with a fork handle 16 that rotates synchronously with the semicircular shaft 17. When the top clamp driving rod 6 moves forward and backward, the top clamp 1 also moves synchronously. The top clamp 1 always sticks to the tail of the memory hemostatic clip 56, which improves the tightness of the memory hemostatic clip 56 and the clamp, and prevents the memory hemostatic clip 56 from loosening or accidentally falling out. There are two positioning notches 70, corresponding to the front top gear position and the reverse gear position respectively. When the fork handle 16 is turned, the positioning fork 12 rotates together. When rotating, the fork teeth 69 cooperate with the annular groove 72 to realize the forward and backward movement of the top clamp drive rod 6. The positioning notch 70 cooperates with the positioning ball 21 to fix the gear position. Furthermore, an adjusting screw 19 for adjusting the tightness of the positioning spring 20 is also provided in the action hole.

[0050] The self-locking device includes a self-locking base 25 and a self-locking cam 13. The self-locking base 25 is provided with a self-locking hole. A self-locking spring 23 and a locking pin 24 are provided in the self-locking hole. One end of the self-locking spring 23 is against the top of the self-locking hole, and the other end cooperates with the top of the locking pin 24. The diameter of the top of the locking pin 24 is larger than the diameter of the lower hole of the self-locking hole. The self-locking cam 13 cooperates with the semicircular shaft 17 and rotates synchronously with the semicircular shaft 17. A No. 1 step 74 is provided on the top of the locking pin 24. A No. 2 step 73 cooperating with the No. 1 step 74 is provided on the self-locking cam 13. The locking pin 24 cooperates with the step formed by the annular groove 72. The fork handle 16 rotates synchronously with the semicircular shaft 17, and the semicircular shaft 17 also cooperates with the self-locking cam 13. When the fork handle 16 is turned and the semicircular shaft 17 rotates, the locking pin 24 rises or falls in the self-locking hole. When the locking pin 24 falls to the step forming the annular groove 72, it blocks the step, that is, blocks the top clamp driving rod 6, and realizes the top clamp locking. The self-locking spring 23 has a shift buffering effect, and the fork handle 16 is kept from shaking by the indirect force of the self-locking spring 23. Furthermore, the positioning fork 12 is provided with a special-shaped hole that cooperates with the semicircular shaft 17, and the side wall of the special-shaped hole is provided with an adjacent corner limiting plane 71. When one of the corner limiting planes 71 is assembled and fitted with the side plane of the semicircular shaft 17, it forms a corner α with the other corner limiting plane 71. When unlocking, in order to prevent the positioning device from interfering with the self-locking device and getting stuck, first rotate clockwise by a certain angle, namely the above-mentioned angle α, so that the lock pin 24 of the self-locking device rises in advance and unlocks in advance, and then continue to rotate the fork handle 16 clockwise to move the top clamp driving rod 6 forward, restore the automatic front push function of the top clamp device, and asynchronously rotate to achieve hysteresis control. Among them, the elastic force of the automatic front push of the top clamp device is greater than the elastic force of the self-locking spring 23. When the fork handle 16 controls the positioning fork 12 to rotate, the positioning ball 21 slides out of the positioning notch 70 and automatically jumps into another positioning notch 70 under the action of the automatic front push force of the top clamp device. The top clamp driving rod 6 reverses the positioning fork 12 under the action of the above-mentioned automatic front push force, thereby driving the self-locking cam 13 to rotate, overcome the force of the self-locking spring 23 to make the lock pin 24 move upward, which plays a role in saving operation effort, and the self-locking spring 23 plays a role in buffering protection.

[0051] The clamp rod rotating device includes a base 49, a clamp rod seat 46 is fixed on the base 49, a damping hole 77 is provided on the clamp rod seat 46, a rotating sleeve 41 is rotatably provided on the clamp rod seat 46, a damping spring 43 and a damping ball 44 cooperating with the damping spring 43 are provided on the rotating sleeve 41, the damping ball 44 cooperates with the damping hole 77, a clamp driving rod 35 is mounted on the top rod 4, the clamp driving rod 35 cooperates with the top clamp driving rod 6, a push rod ball head 34 is also mounted on the top rod 4, the push rod ball head 34 is universally hinged with the clamp driving rod 35, and the front end of the push rod ball head 34 is fixed to the push rod 33, a clamp rod 36 is mounted on the clamp seat 29, the clamp seat 29 is fixed to the front end of the clamp rod 36, a rotating handle 37 is mounted on the clamp rod 36, and the rotating handle 37 is fixed to the rotating sleeve 41. The function of the clamp rod rotating device is to assist with the endoscope, and to control the clamp 27 to more quickly and effectively align with the pathological tissue parts of different clamping orientations or avoid the tissue parts that interfere with the operation by rotating the clamp rod body, and to improve the efficiency of clamping and removing operations. The damping ball 44 is always kept under force in the damping hole 44 under the action of the damping spring 43, and its function is to keep the current position of the rotation slightly positioned to prevent the rotation from running due to slight touch and increase the sense of damping rhythm to improve the operator's perception, so that the rotation operation is more reliable. The clamp rod seat 46 and the base 49 are fixed, and the rotating handle 37 is rotated to drive the rotating sleeve 41, the clamp rod 36, the clamp seat 29, the push rod head 30, and the clamp 27 to rotate in turn. The clamp seat 29 and the push rod head 30 are linked by the spring stop pin 5, and the clamp seat 29 and the push rod 4 are linked by the spring stop pin 5.

[0052] The handle assembly includes a driving handle 53 hinged on the base 49, the top of the driving handle 53 cooperates with the clamp driving rod 35, and the driving handle 53 rotates to push the clamp driving rod 35 forward. The clamp driving rod 35 is also provided with an annular groove, and the driving principle is the same as the top clamp driving rod 6 and the fork teeth 69.

[0053] Furthermore, the driving handle 53 is provided with a hooked ear 78, and the front end of the finger-gripping part of the driving handle is provided with a hooked ear 78, which is more firmly gripped than the traditional handle without a support ear, and the center of gravity of the clamp is moved backward to make the operation more labor-saving and stable, increase the grip feel, and improve the operational reliability and accuracy of the clamp.

[0054] The operation process and principle of the present invention are as follows:

[0055] Taking the clamp: holding the handle of the open clamp applicator, push the fork handle 16 forward (clockwise) with the thumb to confirm that the top clamp device is in the elastic front top blocking normal state, and pull the driving handle 53. The clamp driving rod 35, the push rod ball head 34, the push rod 33, and the push rod head 30 are pushed forward in sequence to open the clamp 27. The jaws are aligned with the tail of the memory hemostatic clip 56 on the clamp seat 55 through the clamp guide groove 75 of the clamp seat 55, and are inserted into the clamp holding groove 62 and automatically elastically retreat. The memory hemostatic clip 56 enters the clamp holding groove 62 of the clamp 27 along the entrance guide groove 64. Release the driving handle 53 to make the clamp 27 automatically close and buckle the memory hemostatic clip 56. Lift the clamp applicator to separate from the clamp seat 55. The top clamp device automatically pushes the tail of the memory hemostatic clip 56 forward, so that the end of the memory hemostatic clip 56 enters the clamp hole 57. The limit groove 63 cooperates with the limit flat head 68 to limit the position, and the clamp is taken;

[0056] Clip carrying: The clip applier closes and enters the biological cavity to aim at the target tissue site;

[0057] Rotation: Use the index finger to turn the handle 37 to adjust the clamping angle of the clamp 27;

[0058] Clamping: Press the driving handle 53 to make the clamp 27 drive the memory hemostatic clip 56 to be opened synchronously and sent into the target tissue site;

[0059] Applying the clip: Loosen the drive handle 53 to make the clamp 27 automatically close, and the memory hemostatic clip 56 automatically clamps the tissue part synchronously;

[0060] Disengagement: Pull back (turn counterclockwise) the fork handle 16 with your thumb to control the top clamp 1 of the top clamp device to move back and open;

[0061] Self-locking: The positioning device and the self-locking device are linked to complete the positioning self-locking, and the clamp 27 is slightly extended forward to disengage the clamp and withdraw from the biological cavity, thus completing the clamping operation.

[0062] Clip removal: After hemostasis is completed, the clip is removed. Hold the handle of the open clamping forceps, pull the fork handle 16 with the thumb to confirm that the top clamp 1 of the top clamping device retreats and is positioned and self-locked, release the drive handle 53 to make the empty clamp of the clamp 27 automatically close and enter the biological cavity to align with the memory hemostatic clip 56 in the clamping of the tissue part, use the index finger to turn the handle 37 to control the device V to rotate the clamp rod body, adjust the clamping angle of the clamp 27, press the drive handle 53 to open the clamp 27, align the jaws with the tail of the memory hemostatic clip 56 on the tissue part and make it enter the clamp 27 along the entrance guide groove 64. Hold the clamp groove 62 and slowly release the driving handle 53 to automatically close the clamp 27. Pull the clamp applicator slightly backward to make the front ends of the two clamp arms of the memory hemostatic clamp 56 enter the clamp hole 57 of the clamp 27 and be limited by the limiting groove 63. Push the fork handle 16 forward with your thumb to restore the elastic front top block of the top clamp device to the normal state and automatically push the tail of the memory hemostatic clamp 56 forward to prevent it from sliding out. Pull the driving handle 53 to make the clamp 27 open the two clamp arms of the hemostatic clamp 56 and carry it away from the tissue site. Release the driving handle 53 to make the clamp 27 hold the hemostatic clamp 56 and automatically close and withdraw from the biological cavity, thus completing the clip removal operation.

[0063] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed in this article and should not be regarded as excluding other embodiments. It can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described in this article through the above teachings or the technology or knowledge in the related field, including but not limited to: the improved design of adding an automatic clamp feeding device and a display screen, the deformation optimization of the expansion type clamp, the improved deformation of the memory hemostatic clamp, the improvement of the clamp seat, the improvement of the top clamping method to the pre-clamping or clamping method, the imitation deformation of the semi-circular shaft positioning self-locking mechanism and the imitation of the labor-saving fulcrum structure design of the drive handle, etc. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present invention, and should be within the protection scope of the claims attached to the present invention.

Claims

1. A clamp applier with a dual function of opening and clamping, characterized in that: include: A memory hemostatic clip, the memory hemostatic clip comprising two clamping arms with automatic clamping elastic force, the two clamping arms being in a clamping state in a reset state; A clamp seat, the clamp seat is used to store the memory hemostatic clamp, and the two clamp arms of the memory hemostatic clamp are in an open state during storage; The clamp seat (55) is evenly provided with a plurality of clamp guide grooves (75), and the clamp guide grooves (75) are provided with hemostatic clip storage grooves (76) that cooperate with the memory hemostatic clip (56); The expandable clamping dual-purpose clamp comprises a clamp opening and closing device and a handle assembly, the clamp opening and closing device and the handle assembly are connected by transmission, the clamp opening and closing device cooperates with the memory hemostatic clip, the clamp opening and closing device is normally in a closed state, and the handle assembly comprises a drive handle (53), when the drive handle (53) is pressed, the clamp opening and closing device opens to remove the memory hemostatic clip from the clamp seat, and when clamping the target tissue, the drive handle (53) is released, and the memory hemostatic clip clamps the target tissue under the action of its own elastic force and the closing restoring force of the clamp opening and closing device.

2. The open-type dual-purpose clamp applier according to claim 1, characterized in that: It also includes a top clamping device, a positioning device, a self-locking device, and a clamp rod rotating device; The clamp opening and closing device comprises a clamp body (27), a clamp seat (29), and a push rod head (30). The clamp body (27) is composed of two clamp claws (58) that cooperate with each other. The middle parts of the two clamp claws (58) are hinged by a pin shaft (28). The heads of the two clamp claws (58) are provided with protruding clamping steps facing each other. The clamping steps are provided with a clamping hole (57) for the end of the memory hemostatic clip (56) to enter. The clamp seat (29) is provided with two ears, and the ears are provided with holes. The clamp body (27) is connected by the pin shaft (28). The hole is mounted between the two ears, the clamp seat (29) is also provided with a push rod head assembly hole, the push rod head (30) is matched with the shaft hole of the push rod head assembly hole, the head of the push rod head (30) is provided with two groups of eight-shaped guide grooves, the tail of the clamp claw is provided with a control pin (59) matched with the eight-shaped guide groove, the push rod head (30) is provided with a return spring (32), the tail of the push rod head (30) is fixed with a push rod (33), one end of the return spring (32) is matched with the bottom of the clamp seat (29), and the other end is fixed to the head of the push rod (33); The top clamp device comprises a top clamp (1) and a top rod (4), the push rod head (30) is provided with a top rod assembly hole, the top clamp (1) and the top rod (4) are arranged in the top rod assembly hole, the top clamp (1) cooperates with the memory hemostatic clamp (56), the top clamp (1) and the top rod (4) are fixed, a No. 1 long hole is provided on the top rod (4), the push rod head (30) is provided with a No. 2 long hole that cooperates with the No. 1 long hole, a stop pin hole is provided on the clamp seat (29), a spring stop pin (5) is arranged in the stop pin hole, the No. 1 long hole and the No. 2 long hole, a top rod spring (3) is provided on the top rod (4), one end of the top rod spring (3) cooperates with the tail of the top clamp (1), and the other end cooperates with the spring stop pin (5); The positioning device comprises a positioning base (22), a semicircular shaft (17), a positioning fork (12), and a top clamp driving rod (6). The positioning base (22) is provided with an action hole, and a positioning ball (21) and a positioning spring (20) are arranged in sequence in the action hole. The diameter of the positioning ball (21) is larger than the diameter of the action hole opening. The positioning ball (21) abuts against the action hole opening. One end of the positioning spring (20) abuts against the bottom of the action hole, and the other end cooperates with the positioning ball (21). The positioning fork (12) is arranged on the semicircular shaft (17) and rotates in cooperation with the semicircular shaft (17). The positioning fork (12) is provided with a positioning notch (70) that cooperates with the positioning ball (21), the top clamp driving rod (6) is provided with an annular groove (72), the positioning fork (12) is further provided with a fork tooth (69) that cooperates with the annular groove (72), the fork tooth (69) drives the top clamp driving rod (6) to move forward and backward, the top clamp driving rod (6) is sleeved on the top rod (4), the end of the top rod (4) is provided with a fixed locking sleeve (8), the locking sleeve (8) is used to block the top clamp driving rod (6), and the top clamp driving rod (6) cooperates with the push rod (33) and moves synchronously; The self-locking device comprises a self-locking base (25) and a self-locking cam (13). The self-locking base (25) is provided with a self-locking hole. A self-locking spring (23) and a locking pin (24) are provided in the self-locking hole. One end of the self-locking spring (23) abuts against the top of the self-locking hole, and the other end cooperates with the top of the locking pin (24). The diameter of the top of the locking pin (24) is larger than the diameter of the lower hole of the self-locking hole. The self-locking cam (13) cooperates with the semicircular shaft (17) and rotates synchronously with the semicircular shaft (17). A first step (74) is provided at the top of the locking pin (24). The self-locking cam (13) is provided with a second step (73) that cooperates with the first step (74). The locking pin (24) cooperates with the step formed by the annular groove (72). The clamp rod rotating device comprises a base (49), a clamp rod seat (46) is fixed on the base (49), a damping hole (77) is provided on the clamp rod seat (46), a rotating sleeve (41) is rotatably provided on the clamp rod seat (46), a damping spring (43) and a damping ball (44) matched with the damping spring (43) are provided on the rotating sleeve (41), the damping ball (44) is matched with the damping hole (77), a clamp driving rod (35) is sleeved on the top rod (4), and the clamp driving rod (35) is sleeved on the top rod (4). The movable rod (35) cooperates with the top clamp driving rod (6), and the top rod (4) is also provided with a push rod ball head (34), the push rod ball head (34) and the clamp driving rod (35) are universally hinged, and the front end of the push rod ball head (34) is fixed to the push rod (33), and the clamp seat (29) is provided with a clamp rod (36), the clamp seat (29) and the front end of the clamp rod (36) are fixed, and the clamp rod (36) is provided with a rotating handle (37), and the rotating handle (37) is fixed to the rotating sleeve (41); The handle assembly comprises a driving handle (53) hinged on a base (49), the top end of the driving handle (53) cooperates with a clamp driving rod (35), and the driving handle (53) rotates to push the clamp driving rod (35) to move forward.

3. The open-type dual-purpose clamp applier according to claim 2, characterized in that: The clamping step is provided with an entrance guide groove (64) for facilitating the entry of the memory hemostatic clip (56), the inner side of the clamp claw (58) is also provided with a limit groove (63) connected to the clamp hole (57) and a clamp holding groove (62) connected to the limit groove (63), and the clamp claw (58) is provided with a top clamp groove (61).

4. The open-type dual-purpose clip applier according to claim 2, characterized in that: An adjusting screw (19) for adjusting the tightness of the positioning spring (20) is also provided in the action hole.

5. The open-type dual-purpose clip applier according to claim 2, characterized in that: The semicircular shaft (17) is provided with a shift fork handle (16) which rotates synchronously with the semicircular shaft (17).

6. The open-type clamping and taking dual-purpose clip applier according to claim 2, characterized in that: The positioning fork (12) is provided with a special-shaped hole that matches the semicircular shaft (17), and the side wall of the special-shaped hole is provided with an adjacent corner limiting plane (71). When one of the corner limiting planes (71) is assembled and fitted with the side plane of the semicircular shaft (17), it forms a corner with the other corner limiting plane (71).

7. The open-type clamping and taking dual-purpose clip applier according to claim 2, characterized in that: The driving handle (53) is provided with a hooked support ear (78).

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