Microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer

Abstract

This application relates to a microscopic hemostatic clip that protects blood vessels using a thermoplastic elastomer, belonging to the field of medical device technology. The microscopic hemostatic clip includes a first clamping assembly, a second clamping assembly, a connecting assembly, and a protective assembly. The first clamping assembly includes a first clamping member and a first clamping tail connected to each other. The second clamping assembly includes a second clamping member and a second clamping tail connected to each other. The connecting assembly includes a rotating member, a torsion spring, a first connecting portion located in the middle of the first clamping tail, and a second connecting portion located in the middle of the second clamping tail. The rotating member passes through the first and second connecting portions, and the torsion spring is sleeved on the outer periphery of the rotating member, with its two ends connected to the first and second clamping tails, respectively. The protective assembly includes a first protective member and a second protective member, both of which are elastic. The first protective member is located on the first clamping member, and the second protective member is located on the second clamping member. This application can improve the problem of damage to blood vessels caused by microscopic hemostatic clips.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a microscopic hemostatic clip that uses a thermoplastic elastomer to protect blood vessels. Background Technology

[0002] In the field of medical device technology, microsurgery is constantly evolving, with increasingly higher requirements for precision and safety. Especially in medical fields such as neurosurgery, cardiovascular surgery, and plastic surgery, which require delicate microsurgical procedures, precise hemostasis of blood vessels is one of the key operations to ensure surgical success, directly affecting the surgical outcome and patient recovery. With the advancement of medical technology, people are paying more and more attention to vascular protection during surgery.

[0003] Currently, in microsurgery, metal microsurgical clips are traditionally used to achieve hemostasis of blood vessels. These metal microsurgical clips achieve hemostasis primarily by directly clamping the blood vessel with the metal material. In practice, the surgeon accurately clamps the metal clip onto the blood vessel requiring hemostasis, utilizing the hardness of the metal to maintain clamping force on the vessel, thereby blocking blood flow and achieving hemostasis.

[0004] However, traditional metal microsurgical clips have significant drawbacks. Due to the high hardness of the metal material, they can easily cause hard damage to blood vessels during clamping, specifically manifested as compression and deformation of the vessel wall and damage to the intima. These injuries may lead to postoperative complications such as vascular embolism and vascular rupture, seriously affecting the surgical outcome and patient recovery, increasing surgical risks, and prolonging the patient's recovery period. Utility Model Content

[0005] To address the problem of damage to blood vessels caused by microscopic hemostatic clips, this application provides a microscopic hemostatic clip that protects blood vessels using a thermoplastic elastomer.

[0006] The microscopic hemostatic clip for protecting blood vessels using thermoplastic elastomer provided in this application adopts the following technical solution: A microscopic hemostatic clip for protecting blood vessels using thermoplastic elastomer includes: a first clamping assembly comprising a first clamping member and a first clamping tail, the first end of the first clamping tail being connected to the first end of the first clamping member; a second clamping assembly disposed on one side of the first clamping assembly, the second clamping assembly comprising a second clamping member and a second clamping tail, the first end of the second clamping tail being connected to the first end of the second clamping member, the second end of the second clamping tail engaging with the second end of the first clamping tail for bearing pressure, the second end of the first clamping member engaging with the second end of the second clamping member for clamping or releasing the blood vessel; and a connecting assembly comprising a rotating member, a torsion spring, a first connecting portion and a second connecting portion, the first clamping tail having a protruding first connecting portion in the middle, the second clamping tail having a protruding second connecting portion in the middle, the first connecting portion engaging with the second connecting portion, the rotating member passing through the first connecting portion and the second connecting portion, such that... The two ends of the first clamping tail rotate around the rotating member in opposite directions, and the two ends of the second clamping tail rotate around the rotating member in opposite directions. When the second ends of the first clamping tail and the second ends of the second clamping tail are pressed together, the second ends of the first clamping member and the second clamping member move away from each other. The torsion spring is sleeved on the outer periphery of the rotating member. The first end of the torsion spring is connected to the first clamping tail, and the second end of the torsion spring is connected to the second clamping tail. The torsion spring is used to reset the first clamping assembly and the second clamping assembly after the pressing pressure is released. The protective assembly includes a first protective member and a second protective member, both of which are elastic. The first protective member is located on the side of the first clamping member close to the second clamping member, and the second protective member is located on the side of the second clamping member close to the first clamping member. The first protective member and the second protective member are used to contact the blood vessel and clamp the blood vessel under the action of the first clamping assembly and the second clamping assembly.

[0007] By adopting the above technical solution, the first clamping component and the second clamping component cooperate with each other, with the first and second clamping tails bearing the pressing pressure, enabling the first and second clamping components to clamp or release the blood vessel, thereby achieving hemostasis. The rotating component in the connecting component passes through the first and second connecting parts, allowing the first and second clamping tails to rotate in opposite directions around the rotating component, ensuring that the first and second clamping components can correctly open and close when the pressing pressure is applied. A torsion spring is sleeved on the outer circumference of the rotating component, with its two ends connected to the first and second clamping tails respectively, allowing the first and second clamping components to reset after the pressing pressure is released, enabling the hemostatic clip to be reused. The first and second protective components of the protective component are elastic and are located on opposite sides of the first and second clamping components. When clamping the blood vessel, they can utilize their own elasticity to fully conform to the blood vessel wall, buffering the clamping force and avoiding hard damage to the blood vessel, while providing sufficient clamping force to achieve reliable hemostasis.

[0008] Optionally, the torsion spring can open the second end of the first clamp tail and the second end of the second clamp tail, so that in the initial state, the second end of the first clamp tail and the second end of the second clamp tail are spaced apart.

[0009] By adopting the above technical solution, in the initial state, the torsion spring causes the second ends of the first and second clamping tails to open and be spaced apart. The open clamping tails facilitate the application of pressure for operation, thereby driving the first and second clamping components to open and clamp the blood vessel. When it is necessary to clamp the blood vessel for hemostasis, the operator can apply pressure to the first and second clamping tails to bring them closer together. At this time, the second ends of the first and second clamping components are relatively far apart, making it easier to place the blood vessel between them. After releasing the pressure, the torsion spring will function, causing the first and second clamping components to reset, and the second ends of the first and second clamping components will be relatively close, thereby achieving reliable clamping of the blood vessel and achieving the purpose of hemostasis.

[0010] Optionally, both the first protective element and the second protective element are made of thermoplastic elastomer.

[0011] By adopting the above technical solution, the first and second protective components are made of thermoplastic elastomers. Thermoplastic elastomers possess excellent elasticity, flexibility, fatigue resistance, and biocompatibility with human tissue. When the first and second clamping components move the first and second protective components to clamp the blood vessel, the thermoplastic elastomer can undergo elastic deformation, fully conforming to the blood vessel wall and providing sufficient clamping force to achieve reliable hemostasis. Simultaneously, its softness and elasticity buffer the clamping force, avoiding hard damage to the blood vessel and effectively reducing the probability of postoperative vascular complications. Moreover, this thermoplastic elastomer is less likely to cause rejection reactions or other adverse conditions when in contact with human tissue, improving surgical safety. Furthermore, its good fatigue resistance ensures that it maintains good elasticity and performance even after multiple clamping operations, improving the durability of the microsurgical hemostatic clip.

[0012] Optionally, the first protective member and the second protective member have the same structure, the first clamping member and the second clamping member have the same structure, the first end of the first protective member and the first end of the second protective member are both provided with a first protrusion, the second end of the first protective member and the second end of the second protective member are both provided with a second protrusion, the first clamping member and the second clamping member are both provided with a mounting groove, the first protective member is installed in the mounting groove of the first clamping member, the first protrusion of the first protective member is engaged with the end of the mounting groove of the first clamping member away from the rotating member, the second protrusion of the first protective member is engaged with the first end of the first clamping tail to restrict the movement of the first protective member, the second protective member is installed in the mounting groove of the second clamping member, the first protrusion of the second protective member is engaged with the end of the mounting groove of the second clamping member away from the rotating member, the second protrusion of the second protective member is engaged with the first end of the second clamping tail to restrict the movement of the second protective member.

[0013] By adopting the above technical solution, the movement of the first and second protective components can be effectively restricted, the installation accuracy can be improved, and the risk of the first and second protective components falling into the installation groove when squeezed and causing the side wall of the installation groove to contact the blood vessel can be reduced. The protective components are fixed in position during use, ensuring that they can stably contact the blood vessel and reliably clamp the blood vessel under the action of the first and second clamping components. Thus, while achieving hemostasis, the blood vessel is better protected, and the protection and hemostasis effect of the blood vessel are avoided due to the displacement of the protective components.

[0014] Optionally, both the first protective member and the second protective member are bonded to the corresponding mounting groove with medical adhesive.

[0015] By adopting the above technical solution, the medical adhesive can firmly bond the first and second protective components into the mounting groove, preventing displacement or detachment of the first and second protective components during use. This ensures that the first and second protective components stably contact and clamp the blood vessel under the action of the first and second clamping components, allowing the first and second protective components to fully exert their elastic buffering effect, avoiding hard damage to the blood vessel, while ensuring close contact with the blood vessel wall. Combined with the clamping structure of the hemostatic clip, it provides a stable and appropriate clamping force, achieving a reliable hemostatic effect.

[0016] Optionally, the first clamp and the second clamp have the same structure, the length between the second end of the first clamping member and the rotating member is greater than the length between the second end of the first clamp and the rotating member, and the length between the second end of the second clamping member and the rotating member is greater than the length between the second end of the second clamp and the rotating member.

[0017] By adopting the above technical solution, the length between the second end of the first clamping member and the rotating member is greater than the length between the second end of the first clamp tail and the rotating member, and the length between the second end of the second clamping member and the rotating member is greater than the length between the second end of the second clamp tail and the rotating member. This design forms a lever structure. When pressure is applied to the second ends of the first and second clamp tails, according to the lever principle, the applied pressure can be transmitted to the clamping members more precisely, improving stability and reducing wobbling, making it suitable for delicate surgeries. It also reduces obstruction of the surgical field for the operator, allowing for more reliable clamping of blood vessels and improved hemostasis. Furthermore, after the pressure is released, the first and second clamping components can be smoothly reset under the action of the torsion spring for reuse.

[0018] Optionally, it further includes a first connector and a second connector, wherein the first connector connects a first end of the first clamping member to a first end of the first clamping tail, and the second connector connects a first end of the second clamping member to a first end of the second clamping tail.

[0019] By adopting the above technical solution, the first connector connects the first end of the first clamping member to the first end of the first clamping tail, which enables the first clamping member and the first clamping tail to be stably connected, ensuring the stability of the first clamping assembly structure and ensuring that the first clamping member and the first clamping tail work together during operation to accurately clamp or release the blood vessel; the second connector connects the first end of the second clamping member to the first end of the second clamping tail, which enables the second clamping member and the second clamping tail to be tightly connected, maintaining the overall stability of the second clamping assembly, and enabling the second clamping member and the second clamping tail to move synchronously under pressure, thereby cooperating with the first clamping assembly to more reliably complete the clamping or releasing operation of the blood vessel.

[0020] Optionally, the first clamp tail and the second clamp tail have the same structure, and both the first clamp tail and the second clamp tail are provided with arc-shaped grooves. The arc-shaped grooves are used to cooperate with the clamping device to clamp and drive the first clamping component and the second clamping component through the clamping device.

[0021] By adopting the above technical solution, the first clamp tail and the second clamp tail have the same structure and both are provided with arc-shaped grooves. The arc-shaped grooves can achieve good cooperation with the clamping device. The arc shape characteristics can increase the contact area and fit with the clamping device, so that the clamping device can clamp the first clamp tail and the second clamp tail more stably and firmly, thereby driving the first clamping component and the second clamping component more accurately and effectively. This facilitates accurate clamping or release of blood vessels in microsurgery, improving the convenience and reliability of surgical operations.

[0022] Optionally, both the first clamp tail and the second clamp tail are provided with protrusions, which are used to cooperate with the clamping device to clamp and drive the first clamping component and the second clamping component by the clamping device.

[0023] By adopting the above technical solution, the protrusions on the first and second clamping tails can cooperate with the clamping device, enabling the clamping device to accurately clamp the first and second clamping tails. During the clamping process, the protrusions can increase the contact friction with the clamping device and facilitate positioning, ensuring the stability of the clamping, thereby reliably driving the first and second clamping components to achieve accurate clamping or release of blood vessels, improving the convenience and accuracy of surgical operations.

[0024] Optionally, both the first clamp tail and the second clamp tail are provided with positioning holes, which are used to cooperate with the clamping device to achieve positioning.

[0025] By adopting the above technical solution, positioning holes are provided at both the first and second clamp ends. The positioning holes can be used with clamping devices to help accurately position the microscopic hemostatic clip during surgical operations, ensuring that the hemostatic clip accurately reaches the position where the blood vessel needs to be clamped, thereby improving the accuracy and efficiency of surgical operations and making the hemostasis process more precise and reliable.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The first and second protective components made of thermoplastic elastomer can buffer the clamping force, prevent blood vessels from being damaged by hard compression, and reduce the probability of postoperative vascular complications; 2. The first and second protective components fit tightly against the blood vessel wall, and together with the first and second clamping components, they can provide a stable and appropriate clamping force to achieve a reliable hemostatic effect; 3. Thermoplastic elastomers have good fatigue resistance and can maintain good elasticity and performance after multiple clamping operations, which improves the durability of microscopic hemostatic clips, reduces the frequency of equipment replacement, and lowers surgical costs. Attached Figure Description

[0027] Figure 1 This is a first-view schematic diagram of a microscopic hemostatic clip using thermoplastic elastomer to protect blood vessels, according to an embodiment of this application.

[0028] Figure 2 This is a second-view schematic diagram of a microscopic hemostatic clip using thermoplastic elastomer to protect blood vessels, according to an embodiment of this application.

[0029] Figure 3 This is a front view of a microscopic hemostatic clip using thermoplastic elastomer to protect blood vessels, according to an embodiment of this application.

[0030] Figure 4 This is a cross-sectional view of a microscopic hemostatic clip using thermoplastic elastomer to protect blood vessels, according to an embodiment of this application.

[0031] Figure 5 This is a top view of a microscopic hemostatic clip using thermoplastic elastomer to protect blood vessels, according to an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures: 1. First clamping assembly; 11. First clamping element; 111. Mounting groove; 12. First clamping tail; 121. Arc-shaped groove; 122. Protrusion; 123. Positioning hole; 2. Second clamping assembly; 21. Second clamping member; 22. Second clamping tail; 3. Connecting assembly; 31. Rotating component; 32. Torsion spring; 33. First connecting part; 34. Second connecting part; 4. Protective component; 41. First protective element; 411. First protrusion; 412. Second protrusion; 42. Second protective element; 51. First connector; 52. Second connector. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be further described in detail below. In this embodiment, unless otherwise specified, "connection", "linking", and "fixing" are interpreted broadly, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection, and interaction between two components, etc., and can be understood according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, in the description of this embodiment, terms such as "above," "below," "left," and "right," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise stated, directional terms such as "inner" and "outer" used in this application refer to the outline of the corresponding component itself.

[0035] like Figure 1 As shown in the figure, this application discloses a microscopic hemostatic clip (hereinafter referred to as "microscopic hemostatic clip") that uses thermoplastic elastomer to protect blood vessels. The microscopic hemostatic clip includes a first clamping component 1, a second clamping component 2, a connecting component 3, and a protective component 4. By adopting the design of a microscopic hemostatic clip that uses thermoplastic elastomer to protect blood vessels, the effect of protecting blood vessels and reducing postoperative complications is achieved while effectively stopping bleeding.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the first clamping component 1 and the second clamping component 2 are arranged opposite to each other. The connecting component 3 connects the first clamping component 1 and the second clamping component 2 so that they can rotate relative to each other. The protective component 4 is arranged at the clamping part of the first clamping component 1 and the second clamping component 2 for contacting and clamping the blood vessel. This structural design allows the hemostatic clip to open to clamp or release the blood vessel when pressure is applied, and to reset after the pressure is released. In addition, the protective component 4 can effectively protect the blood vessel.

[0037] Specifically, the first clamping assembly 1 includes a first clamping member 11 and a first clamping tail 12, with the first end of the first clamping tail 12 connected to the first end of the first clamping member 11. The first clamping member 11 is typically a sheet-like structure with a certain degree of rigidity, capable of withstanding a certain amount of pressure without deformation. The first clamping tail 12 is also a sheet-like structure, and its shape can be designed according to actual needs, generally in the form of a long strip for easy operation by doctors.

[0038] like Figure 1 , Figure 2 and Figure 4As shown, the second clamping assembly 2 is located on one side of the length direction of the first clamping assembly 1, including a second clamping member 21 and a second clamping tail 22. The first end of the second clamping tail 22 is connected to the first end of the second clamping member 21. The second end of the second clamping tail 22 cooperates with the second end of the first clamping tail 12 to bear the pressing pressure; the second end of the first clamping member 11 cooperates with the second end of the second clamping member 21 to clamp or release the blood vessel. Specifically, the clamping side of the first clamping member 11 for clamping the blood vessel is arranged opposite to the clamping side of the second clamping member 21 to achieve clamping of the blood vessel. The second clamping member 21 and the first clamping member 11 have the same structure, also having a sheet-like structure and a certain rigidity. The second clamping tail 22 and the first clamping tail 12 also have the same structure, and they are symmetrical in design, so as to ensure uniform force during use. When the doctor applies pressure to the second end of the second clamp 22 and the second end of the first clamp 12 to bring them closer together, the second end of the first clamp 11 and the second end of the second clamp 21 will move away from each other, thereby opening the hemostatic clamp; after the pressure is released, they will move closer together again to clamp the blood vessel.

[0039] like Figure 1 , Figure 2 and Figure 5 As shown, further, along the length direction, the cross-sectional areas of the first clamping member 11 and the second clamping member 21 can be gradually reduced to minimize the cross-sectional area of ​​the second ends of the first clamping member 11 and the second clamping member 21, so as to facilitate use in delicate surgery, reduce tissue damage, and adapt to narrow surgical field conditions.

[0040] like Figure 1 , Figure 4 and Figure 5 As shown, the connecting assembly 3 includes a rotating member 31, a torsion spring 32, a first connecting part 33, and a second connecting part 34. The first clamping tail 12 has a first connecting part 33 protruding towards the second clamping tail 22 in the middle, and the second clamping tail 22 has a second connecting part 34 protruding towards the first clamping tail 12 in the middle. The first connecting part 33 and the second connecting part 34 cooperate with each other. The rotating member 31 passes through the first connecting part 33 and the second connecting part 34, so that the first clamping assembly 1 and the second clamping assembly 2 are hinged through the rotating member 31. This causes the two ends of the first clamping tail 12 to rotate around the rotating member 31 in opposite directions, and the two ends of the second clamping tail 22 to rotate around the rotating member 31 in opposite directions. When the second ends of the first clamping tail 12 and the second ends of the second clamping tail 22 are pressed together and brought closer, the second ends of the first clamping member 11 and the second ends of the second clamping member 21 move away from each other.

[0041] A torsion spring 32 is sleeved on the outer periphery of the rotating component 31. The first end of the torsion spring 32 is connected to the first clamping tail 12, and the second end is connected to the second clamping tail 22. The torsion spring 32 is used to reset the first clamping assembly 1 and the second clamping assembly 2 after the pressing force is released. The rotating component 31 can be a pivot pin, which has good wear resistance and rotational flexibility, ensuring smooth rotation of the first clamping tail 12 and the second clamping tail 22. The torsion spring 32 is an important elastic element with a suitable elastic coefficient, capable of deforming under pressing force and storing elastic potential energy. The torsion spring 32 allows the second ends of the first clamping tail 12 and the second clamping tail 22 to open, so that in the initial state, i.e., when no pressing force is applied, the second ends of the first clamping tail 12 and the second clamping tail 22 are spaced apart. When the pressing force is released, the elastic potential energy is released, causing the first clamping assembly 1 and the second clamping assembly 2 to reset. The first connecting part 33 and the second connecting part 34 can be cylindrical structures with protrusions 122. Their size and shape must match each other to ensure that the rotating part 31 can be accurately inserted after mating, and to enable the first clamping assembly 1 and the second clamping assembly 2 to be stably hinged. Specific parameters can be set as needed.

[0042] like Figure 1 and Figure 4 As shown, the protective component 4 includes a first protective member 41 and a second protective member 42, both of which are elastic. The first protective member 41 is located on the side of the first clamping member 11 near the second clamping member 21, and the second protective member 42 is located on the side of the second clamping member 21 near the first clamping member 11. Both the first protective member 41 and the second protective member 42 are used to contact the blood vessel and clamp the blood vessel under the action of the first clamping component 1 and the second clamping component 2. The side of the first protective member 41 opposite to the first clamping member 11 cooperates with the side of the second protective member 42 opposite to the second clamping member 21 to achieve clamping of the blood vessel. Both the first protective member 41 and the second protective member 42 are made of thermoplastic elastomer, which has good elasticity, flexibility, fatigue resistance, and biocompatibility with human tissue.

[0043] The first protective member 41 and the second protective member 42 have the same structure. Their first and second ends are respectively provided with a first protrusion 411 and a second protrusion 412. The first clamping member 11 and the second clamping member 21 are both provided with mounting grooves 111. The first protective member 41 is installed in the mounting groove 111 of the first clamping member 11. The first protrusion 411 of the first protective member 41 is engaged with the end of the mounting groove 111 of the first clamping member 11 away from the rotating member 31. The second protrusion 412 of the first protective member 41 is engaged with the first end of the first clamping tail 12 to restrict the movement of the first protective member 41 in the direction of the clamping force. The second protective member 42 is installed in the mounting groove 111 of the second clamping member 21. The first protrusion 411 of the second protective member 42 is engaged with the end of the mounting groove 111 of the second clamping member 21 away from the rotating member 31. The second protrusion 412 of the second protective member 42 is engaged with the first end of the second clamping tail 22 to restrict the movement of the second protective member 42 in the direction of the clamping force. Both the first protective component 41 and the second protective component 42 can be bonded to their corresponding mounting slots 111 using medical adhesive to enhance connection stability.

[0044] like Figure 1 and Figure 4 As shown, the first clamping tail 12 and the second clamping tail 22 have the same structure. The length between the second end of the first clamping member 11 and the rotating member 31 is greater than the length between the second end of the first clamping tail 12 and the rotating member 31, and the length between the second end of the second clamping member 21 and the rotating member 31 is greater than the length between the second end of the second clamping tail 22 and the rotating member 31. This length design can form a lever principle, which can improve the stability of the operation when the doctor, as the operator, operates the second end of the first clamping tail 12 and the second end of the second clamping tail 22.

[0045] Specifically, it also includes a first connector 51 and a second connector 52. The first connector 51 connects the first end of the first clamping member 11 to the first end of the first clamping tail 12, and the second connector 52 connects the first end of the second clamping member 21 to the first end of the second clamping tail 22. The first connector 51 and the second connector 52 can be a limiting pin structure to strengthen the connection between the first clamping member 11 and the first clamping tail 12, and between the second clamping member 21 and the second clamping tail 22, ensuring that the hemostatic clip will not loosen or separate during use.

[0046] like Figure 1 , Figure 3 and Figure 4As shown, both the first clamp tail 12 and the second clamp tail 22 are provided with arc-shaped grooves 121. These grooves 121 cooperate with the clamping device to clamp and drive the first clamping assembly 1 and the second clamping assembly 2. The shape and size of the arc-shaped grooves 121 must match the clamping device to facilitate accurate operation of the hemostatic clip by the doctor. Simultaneously, both the first clamp tail 12 and the second clamp tail 22 are provided with protrusions 122, which also cooperate with the clamping device to clamp and drive the first clamping assembly 1 and the second clamping assembly 2. The protrusions 122 increase friction with the clamping device and enhance the limiting and positioning effect, improving operational stability. Furthermore, both the first clamp tail 12 and the second clamp tail 22 are provided with positioning holes 123, which cooperate with the clamping device for positioning. The positioning holes 123 ensure the accuracy of the hemostatic clip when cooperating with the clamping device, preventing deviations. The clamping device can be a clamping forceps or other existing structures used to clamp and limit hemostatic clips to achieve the function of clamping and stopping hemostasis by driving the microscopic hemostatic clip. It should be noted that the selected clamping device has a structure that cooperates with the arc-shaped groove 121, the protrusion 122 and the positioning hole 123. Given the existing technology, it will not be described in detail here.

[0047] Understandably, the microscopic hemostatic clip also includes necessary structures for connection, support, drive, positioning and limiting functions, so that the microscopic hemostatic clip can operate normally; the shape, size, material and number of each part of the microscopic hemostatic clip can be determined as needed, as long as it can achieve the corresponding function.

[0048] The implementation principle of this embodiment is as follows: Through its unique structural design, this microscopic hemostatic clip allows the doctor to use a clamping device that engages with the hemostatic clip via the arc-shaped groove 121, protrusion 122, and positioning hole 123. Pressure is applied to the second ends of the first clamp tail 12 and the second clamp tail 22, causing the second ends of the first clamping member 11 and the second clamping member 21 to open, placing the blood vessel between them. Then, the pressure is released, and the torsion spring 32 resets the first clamping assembly 1 and the second clamping assembly 2. The first protective member 41 and the second protective member 42, made of thermoplastic elastomer, fit tightly against the blood vessel wall, providing sufficient clamping force for hemostasis while also buffering the clamping force to prevent hard damage to the blood vessel. Furthermore, thermoplastic elastomers have good biocompatibility, are less likely to cause rejection reactions, and have strong fatigue resistance, maintaining good performance even after multiple uses. This reduces the frequency of equipment replacement, lowers surgical costs, and improves the safety and effectiveness of the surgery, offering significant advantages compared to metal microscopic hemostatic clips.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A microscopic hemostatic clip for protecting blood vessels using a thermoplastic elastomer, characterized in that, include: The first clamping assembly (1) includes a first clamping member (11) and a first clamping tail (12), the first end of the first clamping tail (12) being connected to the first end of the first clamping member (11); The second clamping assembly (2) is disposed on one side of the first clamping assembly (1). The second clamping assembly (2) includes a second clamping member (21) and a second clamping tail (22). The first end of the second clamping tail (22) is connected to the first end of the second clamping member (21). The second end of the second clamping tail (22) cooperates with the second end of the first clamping tail (12) to bear the pressing pressure. The second end of the first clamping member (11) cooperates with the second end of the second clamping member (21) to clamp or release blood vessels. A connecting assembly (3) includes a rotating member (31), a torsion spring (32), a first connecting part (33), and a second connecting part (34). The first clamping tail (12) has a protruding first connecting part (33) at its center, and the second clamping tail (22) has a protruding second connecting part (34) at its center. The first connecting part (33) and the second connecting part (34) cooperate. The rotating member (31) passes through the first connecting part (33) and the second connecting part (34), causing the two ends of the first clamping tail (12) to rotate around the rotating member (31) in opposite directions. The second clamping tail (22)... When the two ends rotate around the rotating member (31) in opposite directions, and the second ends of the first clamping tail (12) and the second clamping tail (22) are pressed together, the second ends of the first clamping member (11) and the second clamping member (21) move away from each other. The torsion spring (32) is sleeved on the outer periphery of the rotating member (31). The first end of the torsion spring (32) is connected to the first clamping tail (12), and the second end of the torsion spring (32) is connected to the second clamping tail (22). The torsion spring (32) is used to reset the first clamping assembly (1) and the second clamping assembly (2) after the pressing pressure is released. The protective component (4) includes a first protective member (41) and a second protective member (42), both of which are elastic. The first protective member (41) is located on the side of the first clamping member (11) near the second clamping member (21), and the second protective member (42) is located on the side of the second clamping member (21) near the first clamping member (11). The first protective member (41) and the second protective member (42) are used to contact the blood vessel and clamp the blood vessel under the action of the first clamping component (1) and the second clamping component (2).

2. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 1, characterized in that, The torsion spring (32) can open the second end of the first clamp (12) and the second end of the second clamp (22), so that in the initial state, the second end of the first clamp (12) and the second end of the second clamp (22) are spaced apart.

3. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 1, characterized in that, Both the first protective element (41) and the second protective element (42) are made of thermoplastic elastomer.

4. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 1, characterized in that, The first protective member (41) and the second protective member (42) have the same structure. The first clamping member (11) and the second clamping member (21) have the same structure. The first end of the first protective member (41) and the first end of the second protective member (42) are both provided with a first protrusion (411). The second end of the first protective member (41) and the second end of the second protective member (42) are both provided with a second protrusion (412). The first clamping member (11) and the second clamping member (21) are both provided with a mounting groove (111). The first protective member (41) is installed in the mounting groove (111) of the first clamping member (11). The first protrusion (411) of the first protective member (41) and the second clamping member (21) are both provided with a first protrusion (411). The mounting groove (111) of a clamping member (11) is engaged with one end away from the rotating member (31), and the second protrusion (412) of the first protective member (41) is engaged with the first end of the first clamping tail (12) to restrict the movement of the first protective member (41). The second protective member (42) is installed in the mounting groove (111) of the second clamping member (21), and the first protrusion (411) of the second protective member (42) is engaged with one end away from the rotating member (31) of the mounting groove (111) of the second clamping member (21). The second protrusion (412) of the second protective member (42) is engaged with the first end of the second clamping tail (22) to restrict the movement of the second protective member (42).

5. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 4, characterized in that, Both the first protective element (41) and the second protective element (42) are bonded to the corresponding mounting groove (111) with medical adhesive.

6. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 4, characterized in that, The first clamp (12) and the second clamp (22) have the same structure. The length between the second end of the first clamping member (11) and the rotating member (31) is greater than the length between the second end of the first clamp (12) and the rotating member (31). The length between the second end of the second clamping member (21) and the rotating member (31) is greater than the length between the second end of the second clamp (22) and the rotating member (31).

7. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 1, characterized in that, It also includes a first connector (51) and a second connector (52), wherein the first connector (51) connects the first end of the first clamping member (11) to the first end of the first clamping tail (12), and the second connector (52) connects the first end of the second clamping member (21) to the first end of the second clamping tail (22).

8. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 1, characterized in that, The first clamp tail (12) and the second clamp tail (22) have the same structure. Both the first clamp tail (12) and the second clamp tail (22) are provided with an arc-shaped groove (121). The arc-shaped groove (121) is used to cooperate with the clamping device to clamp and drive the first clamping component (1) and the second clamping component (2) through the clamping device.

9. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 1, characterized in that, Both the first clamp tail (12) and the second clamp tail (22) are provided with protrusions (122), which are used to cooperate with the clamping device to clamp and drive the first clamping component (1) and the second clamping component (2) through the clamping device.

10. The microscopic hemostatic clip for protecting blood vessels with thermoplastic elastomer according to claim 1, characterized in that, Both the first clamping tail (12) and the second clamping tail (22) are provided with positioning holes (123), which are used to cooperate with the clamping device to achieve positioning.

Images