Rotatable antiskid hemostatic clip

Abstract

The utility model belongs to the technical field of medical instruments, particularly relates to a rotatable anti-slip hemostatic clip, and provides the following scheme aiming at solving the problems of having anti-slip stability and realizing multi-degree-of-freedom real-time adjustment, controllable degradation and accurate release: the rotatable anti-slip hemostatic clip comprises a clip arm, a spherical hinge assembly, a degradable clip plate and an elastic clamping assembly, the degradable clamping plates are interactively placed on the clamping arms, so that the two degradable clamping plates clamp a bleeding part of a target tissue, the hemostatic effect is achieved, the clamping arms are connected to the spherical hinge assembly, the clamping angle of the two clamping arms can be adjusted, the bleeding part of the target tissue can be conveniently aligned for clamping, and the hemostatic effect is achieved. Meanwhile, secondary angle adjustment can be carried out after clamping, the degradable clamping plate is left in the body of a patient, and after a period of time, the degradable clamping plate can be automatically degraded, so that the situation that complications are possibly caused due to the fact that the clamping plate for hemostasis is left in the body for a long time is avoided.

Description

Technical Field

[0001] The utility model relates to a hemostatic clamp, in particular to a rotatable anti-slip hemostatic clamp, belonging to the technical field of medical equipment. Background Art

[0002] Endoscopic hemostatic clips have become one of the most widely used hemostatic methods for critically ill patients due to their low trauma, fast hemostasis, low incidence of rebleeding, few complications, and definite efficacy. Hemostatic clips are a physical and mechanical compression hemostatic device and a medical device used in conjunction with endoscopic surgery.

[0003] In the prior art, a rotatable and repeatedly openable and closable hemostatic clamp disclosed in announcement number CN206403824U has a push-pull sliding double finger ring that controls the opening or closing of the clamp in the tightening tube under the action of a traction component and a retaining component, thereby achieving the purpose of multiple opening and closing and hemostasis. The clamp can be opened and closed flexibly and repeatedly, with stable and reliable clamping force, and can be conveniently rotated according to various angles in the human body. At the same time, the length of retention in the biological body is shortened, avoiding damage or perforation of normal biological tissues due to the longer retention part, so as to prevent secondary bleeding. However, the hemostatic clamp adopts a traction wire to control the clamp to open and close multiple times in the tightening tube, and realizes the rotation of the clamp by turning the handle, but its rotation depends on the elastic hook connection, which is easy to deform and disengage after long-term use, and the smooth metal clamping surface has insufficient friction on edematous tissue. After clamping, it is easy to slip due to tissue peristalsis or blood flow impact, especially for fragile tissues such as gastrointestinal ulcers, the secondary bleeding rate is high. The opening or closing of the clamp is controlled by the traction component. Although this method realizes the repeated opening and closing and rotation functions of the clamp, the traction component needs to rely on a multi-stage transmission mechanism (such as steel wire, elastic hook, slide groove, etc.), which makes the instrument structure complicated and the internal space is large. The high space occupancy rate limits the application compatibility of ultra-fine endoscopic forceps channels; and there is a hysteresis effect and friction loss in mechanical transmission. After repeated operations, the clamping force is easily attenuated due to wire deformation or hook dislocation, and even the clip is accidentally loosened during surgery; the traction component needs to reserve a wire telescopic stroke, which makes it difficult to miniaturize the outer diameter of the instrument, and an excessively long transmission chain will reduce the angle adjustment response speed, affecting the real-time and accurate positioning of deep bleeding points; for example, a hemostatic clip disclosed in announcement number CN219147745U directly forms a detachable rotating connection between the base and the storage tube through a deformable connecting arm set at the end of the base, but the angle is solidified after clamping and cannot be adjusted. If the clamping direction needs to be adjusted during surgery, the instrument must be completely withdrawn, and real-time secondary positioning in the body cannot be achieved, which greatly prolongs the operation time; and in actual use, the existing hemostatic clip cannot take into account both deep anchoring and surface tearing prevention requirements when clamping the bleeding site. Utility Model Content

[0004] The utility model provides a rotatable anti-slip hemostatic clamp to solve the problem of how to achieve anti-slip stability, realize multi-degree-of-freedom real-time adjustment, controllable degradation and precise release.

[0005] The utility model achieves the above-mentioned object through the following technical solutions: a rotatable anti-slip hemostatic clamp, comprising a clamp arm and a spherical hinge assembly, wherein the clamp arm is provided with two separate parts, the bottom ends of the clamp arms are movably connected to the spherical hinge assembly, the inner sides of the clamp arms are movably connected to a degradable splint, and an elastic clamping assembly is connected between the bottom ends of the clamp arms;

[0006] A clamping groove is provided on the inner side of the clamping arm, and the degradable splint is clamped in the clamping groove. A temperature-controlled clamping unit and a magnetically controlled limiting unit are provided between the degradable splint and the clamping arm;

[0007] The inner sides of the two biodegradable splints are connected with a plurality of long barbs and short barbs, both of which are arc-shaped barbs with the same structure and are embedded with reinforcing wires;

[0008] The elastic clamping assembly includes a shell and a push rod. The push rod is movably inserted at both ends of the shell. A compression spring is arranged in the shell and rests between the two push rods. The shell is filled with magnetorheological fluid.

[0009] As a further solution of the present invention: the temperature control clamping unit includes a plurality of memory alloy clips, which are respectively connected to the groove walls on both sides of the clamping groove. The memory alloy clips are in an outwardly convex arc shape in the initial state. The memory alloy clips include but are not limited to temperature-responsive nickel-titanium alloy clips. The deformation recovery temperature of the memory alloy clips is 36-37°C.

[0010] As a further solution of the present invention: the magnetically controlled limiting unit includes a metal locking plate and an electromagnetic piece. The metal locking plate is connected to the bottom end of the clamping groove. A locking cavity is opened at the bottom end of the board body of the degradable clamping plate. The metal locking plate is movably inserted in the locking cavity. The electromagnetic piece is embedded in the clamping arm, and the electromagnetic piece is electrically connected to the external power supply.

[0011] As a further solution of the present invention: the inner side of the degradable splint is coated with a coagulation coating, the coagulation coating includes but is not limited to a nano-scale hydrophilic coating containing thrombin freeze-dried powder, the material of the degradable splint, long barbs and short barbs includes but is not limited to modified polycaprolactone, and the reinforcing wire includes but is not limited to degradable magnesium alloy microwire.

[0012] As a further solution of the present invention: the outer end of the push rod of the elastic clamping assembly is connected to a docking ball head, part of the ball body of the docking ball head is movably embedded in the bottom end of the clamping arm, one end of the push rod located in the outer shell is connected to a push plate, and the two ends of the compression spring are resting between the two push plates.

[0013] As a further solution of the present invention: a coil is connected to the inner wall of the shell of the elastic clamping component, and the coil is electrically connected to an external power supply.

[0014] As a further solution of the present invention: the spherical hinge assembly includes a spherical bearing and a ball socket base, the spherical bearing is movably sleeved in the ball socket base, the upper end of the spherical bearing is provided with a movable cavity, the bottom end of the clamping arm is inserted in the movable cavity, and a rotating shaft is connected between the bottom end of the clamping arm and the movable cavity.

[0015] As a further solution of the present invention: a number of ring-shaped and evenly distributed ball seats are fixedly connected to the outside of the ball body of the spherical bearing, balls are rolled in the ball seats, the upper end of the ball socket base is provided with a veneer inner wall, the ball body of the spherical bearing is placed on the veneer inner wall, the inner cavity of the ball socket base is provided with an annular ball groove, and the ball is clamped in the annular ball groove.

[0016] As a further solution of the utility model, the bottom end of the ball-and-socket base is connected to an endoscopic forceps catheter, and a forceps guide wire is movably inserted into the endoscopic forceps catheter.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model is provided with a clamping arm and a spherical hinge assembly, the inner side surfaces of the clamping arms are movably connected with degradable splints, and the bottom ends of the clamping arms are connected with elastic clamping assemblies, and the degradable splints are movably placed on the clamping arms and clamped by the two clamping arms, so that the two degradable splints clamp the bleeding part of the target tissue to achieve hemostasis, and the clamping arms are connected to the spherical hinge assembly, so that the clamping arms can be rotated relative to the spherical hinge assembly, and the clamping angles of the two clamping arms can be adjusted, so as to clamp the bleeding part of the target tissue, and the angle can be adjusted again after clamping, and after the bleeding part is clamped by the degradable splint, the clamping arms can be taken out, and only the degradable splint is left in the patient's body. After a period of time, the degradable splint can degrade by itself, so as to avoid the splint used for hemostasis being retained in the body for a long time, which may cause complications;

[0019] 2. The inner side surface of the clamping arm provided in the utility model is provided with a clamping groove, and the degradable splint is clamped in the clamping groove. A temperature-controlled clamping unit and a magnetic-controlled limiting unit are provided between the degradable splint and the clamping arm. The provided clamping groove can realize the limited clamping and fixing of the degradable splint, and the double-safety clamping and limiting mechanism of the temperature-controlled clamping unit and the magnetic-controlled limiting unit can ensure that the degradable splint is firmly connected to the clamping arm while facilitating the separation of the degradable splint from the clamping arm, so as to facilitate the release of the degradable splint during the actual hemostasis operation;

[0020] 3. The inner side of the degradable splint provided by the utility model is connected with a plurality of long barbs and short barbs, and both the long barbs and the short barbs are embedded with reinforcing wires. The long barbs are used to fix deep tissues, and the short barbs are used to prevent surface tissues from tearing. The long barbs and the short barbs work together to make the degradable splint have a good anti-slip effect when clamping the bleeding area to stop bleeding. The reinforcing wire can enhance the structural strength of the barbs, ensuring that they can penetrate into the bleeding tissue during clamping and can be firmly anchored in the tissue, and also have a certain anti-slip effect.

[0021] When the two clamp arms are in the open state, the two push rods will be squeezed against each other, that is, the compression spring can be put into a compressed state, and at this time, a magnetic field force is applied to the magnetorheological fluid, so that the magnetorheological fluid becomes solid-like, and the compression spring can maintain the compressed state. When the two clamp arms are aimed at the bleeding site of the target tissue, the applied magnetic field force can be removed to make the magnetorheological fluid in a liquid state. At this time, the compression spring can return to its original state under the action of elastic force, that is, the two clamp arms can be quickly closed, that is, the degradable splint can be used to clamp and stop bleeding at the bleeding site, and the rapid closing of the two clamp arms can also facilitate the rapid insertion of the barb into the bleeding tissue, similar to the injection operation. Rapid insertion of the tissue can reduce the patient's pain, that is, the clamp arms are clamped and controlled by controllable elastic release, which is convenient for hemostasis operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the clamping arm of the utility model in the open state;

[0023] Figure 2 This is a schematic diagram of the structure of the clamp arm in the closed state of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the clamp arm and the elastic clamping assembly of the utility model;

[0025] Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of the clamping arm of the utility model;

[0026] Figure 5 This is a schematic diagram of the longitudinal cross-sectional structure of the degradable splint of the utility model;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the long barb of the utility model;

[0028] Figure 7 This is a schematic diagram of the cross-sectional structure of the elastic clamping component of the utility model;

[0029] Figure 8This is a schematic diagram of the cross-sectional structure of the spherical hinge assembly of the utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the ball bearing of the utility model;

[0031] Figure 10 For this utility model Figure 9 Schematic diagram of the structure at A in the middle;

[0032] Figure 11 This is a schematic diagram of the cross-sectional structure of the ball and socket base of the utility model.

[0033] In the figure: 1. Clamp arm; 11. Clamp groove; 12. Memory alloy clip; 13. Metal locking plate; 14. Electromagnetic plate; 15. Rotating shaft; 2. Biodegradable splint; 21. Coagulation coating; 22. Long barb; 23. Short barb; 24. Locking cavity; 25. Reinforcement wire; 3. Elastic clamping assembly; 31. Housing; 32. Push rod; 33. Docking ball head; 34. Push plate; 35. Compression spring; 36. Magnetorheological fluid; 37. Coil; 4. Spherical bearing; 41. Movable cavity; 42. Ball seat; 43. Ball; 5. Ball socket base; 51. Veneer inner wall; 52. Annular ball groove; 6. Endoscopic forceps catheter; 7. Forceps channel guide wire. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] like Figures 1 to 11As shown, a rotatable anti-slip hemostatic clamp comprises a clamp arm 1 and a spherical hinge assembly. The clamp arm 1 is provided with two split parts. The bottom end of the clamp arm 1 is movably connected to the spherical hinge assembly. The inner side of the clamp arm 1 is movably connected to a degradable splint 2. The bottom ends of the clamp arms 1 are connected with an elastic clamping assembly 3. By movably placing the degradable splint 2 on the clamp arm 1 and clamping the two clamp arms 1, the two degradable splints 2 clamp the bleeding part of the target tissue to achieve a hemostatic effect. The clamp arm 1 is connected to the spherical hinge assembly to stop bleeding. On the chain assembly, the clamping arm 1 can be rotated relative to the spherical hinge assembly, thereby adjusting the clamping angle of the two clamping arms 1, so as to facilitate clamping the bleeding site of the target tissue. At the same time, the angle can be adjusted again after clamping. After the bleeding site is clamped with the degradable splint 2, the clamping arm 1 can be removed, and only the degradable splint 2 is left in the patient's body. After a period of time, the degradable splint 2 can degrade by itself, so as to avoid the splint used for hemostasis being retained in the body for a long time, which may cause complications.

[0037] A clamping groove 11 is provided on the inner side of the clamping arm 1, and the degradable splint 2 is clamped in the clamping groove 11. A temperature-controlled clamping unit and a magnetic-controlled limiting unit are provided between the degradable splint 2 and the clamping arm 1. The clamping groove 11 is provided to clamp and fix the degradable splint 2. The double-safety clamping and limiting mechanism of the temperature-controlled clamping unit and the magnetic-controlled limiting unit can ensure that the degradable splint 2 is firmly connected to the clamping arm 1 while facilitating the separation of the degradable splint 2 from the clamping arm 1, thereby facilitating the release of the degradable splint 2 during the actual hemostasis operation.

[0038] The inner sides of the two degradable splints 2 are connected with a plurality of long barbs 22 and short barbs 23. The long barbs 22 and the short barbs 23 are arc-shaped barbs with the same structure, and the long barbs 22 and the short barbs 23 are both embedded with reinforcing wires 25. The long barbs 22 are used to fix deep tissues, and the short barbs 23 are used to prevent surface tissues from tearing. The long barbs 22 and the short barbs 23 work together to make the degradable splint 2 have a good anti-slip effect when clamping the bleeding part, and the reinforcing wire 25 can enhance the structural strength of the barbs, ensuring that they can penetrate into the bleeding tissue during clamping and can be firmly anchored in the tissue, and also have a certain anti-slip effect.

[0039] The elastic clamping assembly 3 includes a shell 31 and a push rod 32. The push rod 32 is movably inserted at both ends of the shell 31. A compression spring 35 is provided in the shell 31. The compression spring 35 is pressed between the two push rods 32. The shell 31 is filled with magnetorheological fluid 36. When the two clamping arms 1 are in the open state, the two push rods 32 will be squeezed against each other, that is, the compression spring 35 can be in a compressed state. At this time, a magnetic field force is applied to the magnetorheological fluid 36, so that the magnetorheological fluid 36 is in a solid-like state. The compression spring 35 can maintain a compressed state. When the two clamping arms 1 are in the open state, the two push rods 32 will be squeezed against each other, that is, the compression spring 35 can be in a compressed state. After 1 is aligned with the bleeding site of the target tissue, the applied magnetic field force can be removed to make the magnetorheological fluid 36 in a liquid state. At this time, the compression spring 35 can restore its original shape under the action of the elastic force, that is, the two clamping arms 1 can be quickly closed, that is, the degradable splint 2 can clamp the bleeding site to stop bleeding, and the rapid closing of the two clamping arms 1 can also facilitate the rapid penetration of the barbs into the bleeding tissue, similar to the injection operation. Rapid penetration of the tissue can reduce the patient's pain, that is, the clamping arm 1 is clamped and controlled by a controllable elastic release method, which facilitates the hemostasis operation.

[0040] Example 2

[0041] Improvements based on Example 1:

[0042] like Figures 1 to 6 As shown, the temperature control clamping unit includes a plurality of memory alloy clips 12, which are respectively connected to the two side walls of the clamping groove 11. The memory alloy clips 12 are in a convex arc shape in the initial state. The memory alloy clips 12 include but are not limited to temperature-responsive nickel-titanium alloy clips. The deformation recovery temperature of the memory alloy clips 12 is 36-37°C. When the degradable splint 2 is clamped in the clamping groove 11, the convex shape of the memory alloy clips 12 can form an elastic clamping of the two side plates of the degradable splint 2 to ensure the stability of the installation position of the degradable splint 2. After the two degradable splints 2 are clamped together by the clamping arm 1, since the normal body temperature of the human body is 37°C, the memory alloy clips 12 will be restored to a flat shape at this temperature, and the degradable splint 2 can be loosened in the clamping groove 11, which facilitates the separation of the clamping arm 1 from the degradable splint 2.

[0043] Furthermore, the magnetic control limit unit includes a metal locking plate 13 and an electromagnetic sheet 14. The metal locking plate 13 is connected to the bottom end of the slot 11. A locking cavity 24 is provided at the bottom end of the body of the degradable splint 2. The metal locking plate 13 is movably inserted into the locking cavity 24. The electromagnetic sheet 14 is embedded in the clamping arm 1, and the electromagnetic sheet 14 is electrically connected to the external power supply. When the degradable splint 2 is placed in the clamping slot 11, the metal locking plate 13 is inserted into the locking cavity 24. 4, by energizing the electromagnetic sheet 14, magnetic poles can be generated, that is, there can be a magnetic attraction between the electromagnetic sheet 14 and the metal locking plate 13, which can form a magnetic clamping and fixing of the degradable splint 2. When the degradable splint 2 needs to be separated from the clamping groove 11, it is only necessary to cut off the power to the electromagnetic sheet 14, and the metal locking plate 13 can be conveniently pulled out from the locking cavity 24. The temperature control of the temperature control clamping unit is automatically unlocked to realize the intelligent release of the degradable splint 2.

[0044] Furthermore, the inner side of the degradable splint 2 is coated with a coagulation coating 21, which includes but is not limited to a nano-scale hydrophilic coating containing thrombin freeze-dried powder. The materials of the degradable splint 2, the long barbs 22 and the short barbs 23 include but are not limited to modified polycaprolactone, and the reinforcing wire 25 includes but is not limited to degradable magnesium alloy microwires. By providing the coagulation coating 21, thrombin can be released when the degradable splint 2 clamps the bleeding site to stop bleeding, thereby enhancing the hemostatic effect. The degradable splint 2, the long barbs 22 and the short barbs 23 can slowly degrade after completing hemostasis, and the reinforcing wire 25 prepared in conjunction with the degradable magnesium alloy microwires can further accelerate the later degradation.

[0045] like Figure 3 and Figure 7 As shown, the outer end of the push rod 32 of the elastic clamping assembly 3 is connected to a docking ball head 33, and part of the ball body of the docking ball head 33 is movably embedded in the bottom end of the clamping arm 1. The end of the push rod 32 located in the shell 31 is connected to a push plate 34, and the two ends of the compression spring 35 are resting between the two push plates 34. The docking ball head 33 is set to enable the elastic clamping assembly 3 to be movably connected to the clamping arms 1 on both sides, so that during the opening or closing process of the two clamping arms 1, there will be no movement interference between the elastic clamping assembly 3, and the push plate 34 set at the same time can facilitate the increase of the contact area with the compression spring 35, thereby facilitating the release of the elastic force of the compression spring 35.

[0046] Furthermore, a coil 37 is connected to the inner wall of the housing 31 of the elastic clamping assembly 3 , and the coil 37 is electrically connected to an external power supply. By energizing the coil 37 , a magnetic field force is generated, thereby enabling the magnetorheological fluid 36 to undergo a shape change.

[0047] like Figure 1 、 Figure 2 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, the spherical hinge assembly includes a spherical bearing 4 and a ball socket base 5. The spherical bearing 4 is movably mounted in the ball socket base 5. The upper end of the spherical bearing 4 is provided with a movable cavity 41. The bottom end of the clamping arm 1 is inserted into the movable cavity 41, and a rotating shaft 15 is connected between the bottom end of the clamping arm 1 and the movable cavity 41. The rotating shaft 15 can enable the bottom end of the clamping arm 1 to rotate in the movable cavity 41, and with the connection point of the rotating shaft 15 as a fulcrum, the two clamping arms 1 are swung in the shape of a pry bar, so that the two clamping arms 1 can open or close.

[0048] Furthermore, a number of ring-shaped and evenly distributed ball seats 42 are fixedly connected to the outside of the ball body of the spherical bearing 4, and balls 43 are rolled and placed in the ball seats 42. The upper end of the ball socket base 5 is provided with a veneer inner wall 51, and the ball body of the spherical bearing 4 is attached to the veneer inner wall 51. The inner cavity of the ball socket base 5 is provided with an annular ball groove 52, and the balls 43 are clamped in the annular ball groove 52. Through the limiting clamping effect of the balls 43, the connection part between the spherical bearing 4 and the ball socket base 5 can be made difficult to disassemble, and the spherical bearing 4 can be easily rotated on the ball socket base 5, that is, it can drive the two clamping arms 1 to adjust the clamping angle, and the veneer inner wall 51 provided can prevent human body fluids from entering the inner cavity of the ball socket base 5 during use.

[0049] Furthermore, the bottom end of the ball and socket base 5 is connected to an endoscopic forceps catheter 6, in which a forceps channel guide wire 7 is movably inserted. The clamp arm 1 can be extended into the bleeding site in the patient's body through the endoscopic forceps catheter 6, and the inserted forceps channel guide wire 7 can hook the ball seat 42 through the bending structure at its front end, thereby driving the ball bearing 4 to rotate, making it convenient to operate and use the hemostatic clamp during the actual hemostasis process.

[0050] Working principle: In the hemostasis preparation stage, the clamp arm 1 is movably connected to the movable cavity 41 of the spherical hinge assembly through the rotating shaft 15 set at the bottom, forming a lever-type opening and closing structure; in the initial state, the two clamp arms 1 are in a closed state. The two clamp arms 1 are opened manually. At this time, the compression spring 35 of the elastic clamping assembly 3 is squeezed by the push rod 32 to store energy, and at the same time, the coil 37 is energized to solidify the magnetorheological fluid 36 into a rigid state to maintain the clamp arm 1 open. Then, the two degradable splints 2 are clamped in the clamping groove 11, so that the degradable splints The locking cavity 24 opened at the bottom end of the plate body is inserted into the metal locking plate 13. Since the clamp arm 1 is not inserted into the patient's body at this time, the memory alloy clamping piece 12 of the temperature control clamping unit is in the initial state of the convex arc surface, which can clamp the side of the degradable splint 2. At the same time, the electromagnetic piece 14 is energized to generate magnetic poles, that is, a magnetic attraction force can be generated between the electromagnetic piece 14 and the metal locking plate 13, which can form a magnetic clamping and fixing of the degradable splint 2, ensuring that the degradable splint 2 is firmly connected to the clamp arm 1;

[0051] During the clamping hemostasis stage, when the endoscopic forceps catheter 6 delivers the hemostatic clamp to the bleeding site, the bending structure at the front end of the forceps guide wire 7 hooks the ball seat 42 to drive the ball bearing 4 to rotate, thereby realizing ±180° universal adjustment of the clamp arm 1; after positioning, the current of the coil 37 is removed, the magnetorheological fluid 36 liquefies and releases the compression spring 35, driving the push plate 34 to push the push rod 32 to quickly close the two clamp arms 1. At this time, the long barb 22 (embedded with a reinforcing wire 25) on the inside of the degradable splint 2 penetrates the deep tissue, the short barb 23 (also embedded with a reinforcing wire 25) hooks the surface tissue, and the coagulation coating 21 releases the coagulation. The enzyme accelerates hemostasis, and after a period of clamping and the combined action of thrombin, the bleeding site is stopped from bleeding. During the clamping hemostasis period, the electromagnetic sheet 14 is continuously energized so that there is always a magnetic attraction between the electromagnetic sheet 14 and the metal locking plate 13, that is, the magnetic attraction clamping and fixing of the degradable splint 2 can be continuously maintained during the clamping hemostasis stage. When the temperature-controlled clamping unit is in a body temperature environment of 37°C, the temperature of the memory alloy clip 12 will gradually reach 37°C, thereby changing the arc surface of the memory alloy clip 12 into a flat surface, thereby releasing the elastic clamping of the degradable splint 2.

[0052] During the separation stage, after a period of clamping to ensure hemostasis, the electromagnetic plate 14 of the magnetic control limit unit is powered off and demagnetized, and the metal locking plate 13 is separated from the locking cavity 24. Combined with the release of the elastic clamping of the degradable splint 2 by the memory alloy clip 12 in the above-mentioned clamping hemostasis stage, double insurance release is achieved; at this time, the degradable splint 2 is in an active state in the clamping groove 11, so the clamping arm 1 can be pulled out, and the degradable splint 2 remains in the clamping position. The degradable splint 2 retained after leaving the body is gradually degraded by the modified polycaprolactone material, and the degradable magnesium alloy microwires of the reinforcing wire 25 accelerate the structural disintegration to avoid long-term complications.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0054] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A rotatable anti-slip hemostatic clamp, comprising a clamp arm (1) and a spherical hinge assembly, characterized in that: The clamping arms (1) are provided in two separate parts, the bottom ends of the clamping arms (1) are movably connected to the spherical hinge assembly, the inner side surfaces of the clamping arms (1) are movably connected to the degradable splints (2), and the bottom ends of the clamping arms (1) are connected to the elastic clamping assembly (3); The inner side surface of the clamping arm (1) is provided with a clamping groove (11), the degradable splint (2) is clamped in the clamping groove (11), and a temperature-controlled clamping unit and a magnetically controlled limiting unit are provided between the degradable splint (2) and the clamping arm (1); The inner sides of the two degradable splints (2) are connected with a plurality of long barbs (22) and short barbs (23), and the long barbs (22) and the short barbs (23) are arc-shaped barbs with the same structure, and the long barbs (22) and the short barbs (23) are both embedded with reinforcing wires (25); The elastic clamping assembly (3) comprises a housing (31) and a push rod (32), wherein the push rod (32) is movably inserted at both ends of the housing (31), a compression spring (35) is provided in the housing (31), and the compression spring (35) is pressed between the two push rods (32), and the housing (31) is filled with magnetorheological fluid (36).

2. The rotatable anti-slip hemostatic clip according to claim 1, characterized in that: The temperature control clamping unit includes a plurality of memory alloy clips (12), the memory alloy clips (12) are respectively connected to the groove walls on both sides of the clamping groove (11), the memory alloy clips (12) are in an outwardly convex arc shape in an initial state, the memory alloy clips (12) include but are not limited to temperature-responsive nickel-titanium alloy clips, and the deformation recovery temperature of the memory alloy clips (12) is 36-37°C.

3. The rotatable anti-slip hemostatic clip according to claim 1, characterized in that: The magnetically controlled limiting unit comprises a metal locking plate (13) and an electromagnetic sheet (14), wherein the metal locking plate (13) is connected to the bottom end of the clamping groove (11), and a locking cavity (24) is provided at the bottom end of the body of the degradable clamping plate (2), wherein the metal locking plate (13) is movably inserted in the locking cavity (24), and the electromagnetic sheet (14) is embedded in the clamping arm (1), and the electromagnetic sheet (14) is electrically connected to an external power supply.

4. The rotatable anti-slip hemostatic clip according to claim 1, characterized in that: The inner side of the degradable splint (2) is coated with a coagulation coating (21), and the coagulation coating (21) includes but is not limited to a nano-scale hydrophilic coating containing thrombin freeze-dried powder. The material of the degradable splint (2), the long barbs (22) and the short barbs (23) includes but is not limited to modified polycaprolactone, and the reinforcing wire (25) includes but is not limited to degradable magnesium alloy microwires.

5. The rotatable anti-slip hemostatic clip according to claim 1, characterized in that: The outer end of the push rod (32) of the elastic clamping assembly (3) is connected to a docking ball head (33), and a portion of the ball body of the docking ball head (33) is movably embedded in the bottom end of the clamping arm (1). One end of the push rod (32) located in the housing (31) is connected to a push plate (34), and both ends of the compression spring (35) are pressed between the two push plates (34).

6. The rotatable anti-slip hemostatic clip according to claim 5, characterized in that: A coil (37) is connected to the inner wall of the housing (31) of the elastic clamping assembly (3), and the coil (37) is electrically connected to an external power supply.

7. The rotatable anti-slip hemostatic clip according to claim 1, characterized in that: The spherical hinge assembly comprises a spherical bearing (4) and a ball socket base (5), wherein the spherical bearing (4) is movably sleeved in the ball socket base (5), an active cavity (41) is provided at the upper end of the spherical bearing (4), the bottom end of the clamping arm (1) is inserted into the active cavity (41), and a rotating shaft (15) is connected between the bottom end of the clamping arm (1) and the active cavity (41).

8. The rotatable anti-slip hemostatic clip according to claim 7, characterized in that: The outer side of the ball body of the spherical bearing (4) is fixedly connected to a plurality of ring-shaped evenly distributed ball seats (42), and balls (43) are rotatably arranged in the ball seats (42). The upper end of the ball socket base (5) is provided with a veneer inner wall (51), and the ball body of the spherical bearing (4) is placed on the veneer inner wall (51). The inner cavity of the ball socket base (5) is provided with an annular ball groove (52), and the balls (43) are clamped in the annular ball groove (52).

9. The rotatable anti-slip hemostatic clip according to claim 8, characterized in that: The bottom end of the ball-and-socket base (5) is connected to an endoscopic forceps catheter (6), and a forceps guide wire (7) is movably inserted into the endoscopic forceps catheter (6).

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