Degradable magnesium metal closing clamp capable of preventing displacement

Abstract

The invention relates to an anti-displacement degradable magnesium metal closing clamp, and relates to the technical field of metal clamps. The clamp comprises a first clamp arm and a second clamp arm, the first clamp arm and the second clamp arm are connected through a hinge structure, a clasp is arranged at the end, away from the hinge structure, of the first clamp arm, a safety lock catch is arranged at the end, away from the hinge structure, of the second clamp arm, and the safety lock catch is matched with the clasp. The clamp has the advantages that the ends of the first clamp arm and the second clamp arm can be self-locked and cannot slip off.

Description

Technical Field

[0001] The present application relates to the field of metal clips, and in particular to an anti-displacement degradable magnesium metal closure clip. Background Art

[0002] During surgery on the human body, once a lesion is found in the body and surgical resection is required, the blood vessels or tissues in the human body need to be temporarily clamped or even permanently clamped. There are many methods for clamping blood vessels in the prior art, such as suturing and clamping the clamped part in the body with sutures; or using metal materials (such as stainless steel clips, titanium clips, etc.) and plastic closure devices to close blood vessels or bile ducts and other tubular tissues in the human body.

[0003] During clinical use, a special tissue clamp is used to insert the metal clip into the clamp head of the tissue clamp, and then release it, that is, clamp the clamp head of the tissue clamp, and then withdraw the tissue clamp, and the U-shaped metal clip tightly clamps the tissue to be closed together.

[0004] However, after long-term use, the U-shaped metal clip is always in a deformed state, but the closing part of the U-shaped metal clip has no self-locking function. Under the action of the elastic restoring force of the clamped tissue, it is very easy to slip. Not only does it fail to close the closed tissue, but it is also easy to slip into the human body and become a foreign body. It is easy to cause tissue adhesion and obstruction in some important blood vessels and nerves, so it needs to be improved. Summary of the invention

[0005] In order to improve the problem that the U-shaped metal clip is prone to slipping, the present application provides a displacement-resistant and degradable magnesium metal closing clip.

[0006] The anti-displacement biodegradable magnesium metal closure clip provided in the present application adopts the following technical solution: A displacement-resistant degradable magnesium metal closing clamp comprises a first clamp arm and a second clamp arm, wherein the first clamp arm and the second clamp arm are connected via a hinge structure, a buckle is arranged at one end of the first clamp arm away from the hinge structure, and a safety lock is arranged at one end of the second clamp arm away from the hinge mechanism, wherein the safety lock matches the buckle.

[0007] By adopting the above technical solution, when using, the metal closing clamp is moved to the tissue to be closed, and then the hinge structure is opened so that the distance between the No. 1 clamp arm and the No. 2 clamp arm is larger, so that the tissue to be closed can be relatively inserted between the No. 1 clamp arm and the No. 2 clamp arm, and then the No. 1 clamp arm and the No. 2 clamp arm are brought closer to each other, that is, the hinge structure is gradually closed. During this process, the No. 1 clamp arm and the No. 2 clamp arm are relatively displaced, so that the clasp hook and the safety lock buckle are misaligned, and the hinge structure is deformed again, so that the clasp hook finally abuts and clamps on the safety lock buckle, so that the clasp hook and the safety lock buckle are fixed, and the No. 1 clamp arm and the No. 2 clamp arm are closed and fastened, so as to clamp and fix the tissue to be closed, complete the self-locking fixation of the metal closing clamp, and avoid slippage. The safety lock buckle can also provide clear and distinct closing tactile feedback to ensure that the metal closing clamp is closed, and increase the stability of the metal closing clamp to ensure that the tissue to be closed is clamped.

[0008] Optionally, a tension rope is provided between the first clamp arm and the second clamp arm, and two ends of the tension rope are respectively fixedly mounted on the first clamp arm and the second clamp arm through grooves.

[0009] By adopting the above technical solution, the tension rope between the No. 1 clamp arm and the No. 2 clamp arm has appropriate elasticity to avoid crushing tissues, and also facilitates the resetting of the No. 1 clamp arm and the No. 2 clamp arm.

[0010] Optionally, a bow-shaped mechanism is provided on the side wall of the first clamp arm close to the second clamp arm, and a bow-shaped groove is provided on the side wall of the second clamp arm close to the first clamp arm, and the bow-shaped groove matches the bow-shaped structure.

[0011] By adopting the above technical solution, the arched structure of the No. 1 clamp arm and the arched groove of the No. 2 clamp arm cooperate with each other, so that the No. 1 clamp arm and the No. 2 clamp arm can better fit the curved surface of the tissue, thereby providing a more stable clamping force.

[0012] Optionally, the inner walls of the arched structure and the arched groove are both provided with wavy curved surfaces.

[0013] By adopting the above technical solution, the wave surface increases the contact area between the No. 1 clamp arm and the No. 2 clamp arm and the tissue, thereby increasing the friction force, so that the No. 1 clamp arm and the No. 2 clamp arm can better clamp and fix the tissue.

[0014] Optionally, a plurality of anti-skid grooves are provided on the wavy curved surface, and the plurality of anti-skid grooves are arranged at intervals along the length direction of the wavy curved surface.

[0015] By adopting the above technical solution, the plurality of anti-slip grooves increase the roughness of the surface of the wavy curved surface, thereby increasing the friction between the wavy curved surface and the tissue, thereby further increasing the stability of the metal closing clamp in clamping the tissue.

[0016] Optionally, a pointed cone is provided at one end of the first clamp arm away from the hinge structure and protrudes toward the second clamp arm, and a slot matching the pointed cone is provided on the second clamp arm.

[0017] By adopting the above technical solution, when the No. 1 clamp arm and the No. 2 clamp arm are closed to clamp the tissue, the pointed cone is inserted into the slot accordingly to prevent the No. 1 clamp arm from sliding laterally out of the second clamp arm due to the action of external force or the elastic force of the metal closing clamp itself after the metal closing clamp is clamped, thereby preventing the clamp arm from failing to clamp and improving the stability of the closure.

[0018] Optionally, a plurality of fixed steps are provided on the side wall of the pointed cone, and the plurality of fixed steps are arranged in sequence along the length direction of the pointed cone. A plurality of locking steps are provided on the inner wall of the slot, and the plurality of locking steps are arranged in sequence along the depth direction of the slot. The fixed steps can fit tightly with the locking steps to limit the relative displacement of the No. 1 clamp arm and the No. 2 clamp arm.

[0019] By adopting the above technical solution, when the pointed cone is inserted into the slot, the fixed step abuts against the corresponding locking step, and the side wall of the locking step abuts against the side wall of the fixed step, thereby limiting the relative displacement of the fixed step and achieving the fixation of the fixed step in the slot, that is, the pointed cone cannot be pulled out of the slot, thereby increasing the stability of the clamping closure of the No. 1 clamp arm and the No. 2 clamp arm.

[0020] Optionally, the end of the fixing step away from the pointed cone is inclined toward the direction close to the first clamp arm, and the end of the locking step away from the connection between the locking step and the inner wall of the slot is inclined toward the direction away from the first clamp arm.

[0021] By adopting the above technical solution, when the pointed cone is inserted into the slot, the inclined surface of the fixed step abuts against the inclined surface of the locking step, and the two inclined surfaces slide relative to each other, that is, the inclined surfaces of the inclined fixed step and the locking step play a guiding role, making it easier for the pointed cone to be inserted into the slot.

[0022] Optionally, pressing blocks are provided on the side walls of the first clamping arm and the second clamping arm that are away from each other.

[0023] By adopting the above technical solution, the pressing block makes the side walls of the No. 1 clamp arm and the No. 2 clamp arm bulge, so that it is convenient for the operator to press the No. 1 clamp arm and the No. 2 clamp arm, and then control the No. 1 clamp arm and the No. 2 clamp arm to move closer to each other to clamp and close.

[0024] Optionally, a plurality of anti-slip strips are provided on the side walls of the pressing block, and the plurality of anti-slip strips are arranged at intervals along the circumference direction of the pressing block.

[0025] By adopting the above technical solution, the anti-slip strips increase the roughness of the surface of the pressing block, thereby increasing the friction force pressing the No. 1 clamp arm and the No. 2 clamp arm, thereby facilitating the clamping and closing of the No. 1 clamp arm and the No. 2 clamp arm.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The tension rope between the No. 1 clamp arm and the No. 2 clamp arm has appropriate elasticity to avoid crushing tissues and facilitate the reset of the No. 1 clamp arm and the No. 2 clamp arm. It has good corrosion resistance, no rejection and no adhesion. The hook makes the metal closing clamp firmly attached to the clamp head and closed tightly. The wavy surface can effectively prevent slipping and reduce stump damage. The hinge structure is flexible to open and can be spread out when not locked to provide a clear reminder. The safety lock can provide clear and clear tactile feedback of closing. The safety lock and the hook match each other to complete the self-locking fixation of the closed part to avoid slipping. 2. The pointed cone of the No. 1 clamp arm and the slot of the No. 2 clamp arm cooperate to prevent the second clamp arm from sliding out laterally due to external force or the elastic force of the fastening hook after clamping, which may cause the clamp to fail, thereby improving the stability of closure; the degradable magnesium metal material can automatically degrade within a certain period of time without being removed from the body and without interference from imaging examinations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the anti-displacement degradable magnesium metal closure clip according to an embodiment of the present application.

[0028] In the figure: 10, clamp arm No. 1; 11, hook; 12, bow-shaped structure; 13, pointed cone; 131, fixed step; 20, clamp arm No. 2; 21, safety lock; 22, bow-shaped groove; 23, card slot; 231, locking step; 30, hinge structure; 40, tension rope; 50, wavy surface; 51, anti-slip groove; 60, pressing block; 70, anti-slip strip. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 This application is described in further detail.

[0030] The present application discloses a degradable magnesium metal closure clip that prevents displacement. Figure 1The anti-displacement biodegradable magnesium metal closing clamp includes a No. 1 clamp arm 10 and a No. 2 clamp arm 20, wherein the length of the No. 1 clamp arm 10 is slightly larger than that of the No. 2 clamp arm 20, and one end of the No. 1 clamp arm 10 and the No. 2 clamp arm 20 are connected by a hinge structure 30. In the embodiment of the present application, the hinge structure 30 is a C-shaped plate, and the two ends of the C-shaped plate are respectively integrally formed with the ends of the No. 1 clamp arm 10 and the No. 2 clamp arm 20. A buckle hook 11 is integrally formed at one end of the No. 1 clamp arm 10 away from the hinge structure 30, and a safety lock buckle 21 is integrally formed at one end of the No. 2 clamp arm 20 away from the hinge mechanism, and the buckle hook 11 can be adapted to be hooked on the safety lock buckle 21.

[0031] When in use, the metal closing clamp is moved to the tissue to be closed, and then the hinge structure 30 is opened, so that the distance between the No. 1 clamp arm 10 and the No. 2 clamp arm 20 is larger, which is convenient for the tissue to be slowly closed to be relatively inserted between the No. 1 clamp arm 10 and the No. 2 clamp arm 20, and then the No. 1 clamp arm 10 and the No. 2 clamp arm 20 are brought closer to each other, that is, the hinge structure 30 is gradually closed. During this process, the No. 1 clamp arm 10 and the No. 2 clamp arm 20 are relatively displaced, so that the hook 11 and the safety lock buckle 21 are misaligned, and as the hinge structure 30 is deformed again, the hook 11 finally abuts against and clamps on the safety lock buckle 21, so that the hook 11 and the safety lock buckle 21 are fixed, realizing the closing and tightening of the No. 1 clamp arm 10 and the No. 2 clamp arm 20, thereby clamping and fixing the tissue to be closed, completing the self-locking fixation of the metal closing clamp and avoiding slipping.

[0032] The safety lock 21 can also provide clear and distinct tactile feedback of closing to ensure that the metal closing clip is closed, and increase the stability of the metal closing clip in clamping the tissue to be closed. The material of the entire metal closing clip is degradable magnesium metal, so it can be automatically opened within a certain period of time without being taken out of the body, and thus without interference with imaging examination.

[0033] Reference Figure 1 In order to make the hinge structure 30 open flexibly, a tension rope 40 is provided between the No. 1 clamp arm 10 and the No. 2 clamp arm 20. The two ends of the tension rope 40 are respectively fixedly installed on the No. 1 clamp arm 10 and the No. 2 clamp arm through grooves. The tension rope 40 between the No. 1 clamp arm 10 and the No. 2 clamp arm 20 has appropriate elasticity to avoid crushing the tissue, and also facilitates the resetting of the No. 1 clamp arm 10 and the No. 2 clamp arm 20.

[0034] Reference Figure 1In order to increase the stability of the clamping of the tissue by the first clamping arm 10 and the second clamping arm 20, the side wall of the first clamping arm 10 close to the second clamping arm 20 is bent into an arched structure, and the side wall of the second clamping arm 20 close to the first clamping arm 10 is provided with an arched groove 22, and the arched groove 22 matches the arched structure 12. The inner walls of the arched structure 12 and the arched groove 22 are both provided with a wavy curved surface 50. The wavy curved surface 50 is provided with a plurality of anti-slip grooves 51, which are arranged along the width direction of the wavy curved surface 50, and the plurality of anti-slip grooves 51 are parallel to each other and arranged at intervals along the length direction of the wavy curved surface 50.

[0035] The arched structure 12 of the first clamp arm 10 and the arched groove 22 of the second clamp arm 20 cooperate to enable the first clamp arm 10 and the second clamp arm 20 to better fit the curved surface of the tissue, thereby providing a more stable clamping force. The wavy curved surface increases the contact area between the first clamp arm 10 and the second clamp arm 20 and the tissue, thereby increasing the friction force, so that the first clamp arm 10 and the second clamp arm 20 can better clamp and fix the tissue. The anti-slip grooves 51 increase the roughness of the surface of the wavy curved surface 50, thereby increasing the friction between the wavy curved surface 50 and the tissue, thereby further increasing the stability of the metal closed clamp clamping the tissue.

[0036] Reference Figure 1 In order to prevent the first clamp arm 10 and the second clamp arm 20 from sliding relative to each other, a sharp cone 13 is provided at one end of the first clamp arm 10 away from the hinge structure 30 and protrudes toward the second clamp arm 20. The sharp cone 13 is integrally formed with the first clamp arm 10, and a V-shaped groove 23 is provided on the side wall of the second clamp arm 20 close to the first clamp arm 10. A plurality of fixed steps 131 are provided on the side wall of the sharp cone 13, and the plurality of fixed steps 131 are arranged in sequence along the length direction of the sharp cone 13. A plurality of locking steps 231 are provided on the inner wall of the groove 23, and the plurality of locking steps are arranged in sequence along the depth direction of the groove 23.

[0037] The end of the fixing step 131 away from the pointed cone 13 is inclined toward the first clamp arm 10 , and the end of the locking step 231 away from the connection between the locking step 231 and the inner wall of the slot 23 is inclined toward the first clamp arm 10 .

[0038] Reference Figure 1 In the embodiment of the present application, there are two fixed steps 131, the first fixed step 131 is closest to the first clamp arm 10, and the second fixed step 131 is farthest from the first clamp arm 10. There are four locking steps 231, the fourth locking step 231 is closest to the second clamp arm 20, and the first locking step 231 is farthest from the second clamp arm 20, and so on.

[0039] When the pointed cone 13 is inserted into the slot 23, the inclined surface of the fixed step 131 abuts against the inclined surface of the locking step 231, and the two inclined surfaces slide relative to each other, that is, the inclined surfaces of the fixed step 131 and the locking step 231 play a guiding role, which facilitates the insertion of the pointed cone 13 into the slot 23. After the pointed cone 13 is inserted into the slot 23, the fixed step 131 fits tightly with the locking step 231, limiting the relative position of the first clamp arm 10 and the second clamp arm 20, so that the wavy curved surface 50 of the first clamp arm 10 and the wavy curved surface 50 of the second clamp arm 20 are more tightly engaged, thereby improving the closing effect.

[0040] Reference Figure 1 The second fixed step 131 cooperates with the four locking steps 231 to generate different pressures. Specifically, the maximum pressure of the second fixed step 131 cooperating with the first locking step 231 is 20KPa, the maximum pressure of the second fixed step 131 cooperating with the second locking step 231 is 40KPa, the maximum pressure of the second fixed step 131 cooperating with the third locking step 231 is 60KPa, and the maximum pressure of the second fixed step 131 cooperating with the fourth locking step 231 is 80KPa.

[0041] The cooperation between the second fixing step 131 and the four locking steps 231 in the clamping slot 23 depends on the maximum pressure of the clamping object. Different locking steps 231 in the clamping slot 23 are selected according to different pressures to improve the closing effect and prevent the first clamping arm 10 from slipping.

[0042] Reference Figure 1 In order to facilitate the pressing of the first clamp arm 10 and the second clamp arm 20, a pressing block 60 is provided on the side walls of the first clamp arm 10 and the second clamp arm 20 that are away from each other. A plurality of anti-slip strips 70 are provided on the side walls of the pressing block 60, and the plurality of protection strips are arranged at intervals along the circumference direction of the pressing block 60.

[0043] The pressing block 60 makes the side walls of the first clamp arm 10 and the second clamp arm 20 bulge, so that the operator can press the first clamp arm 10 and the second clamp arm 20, thereby controlling the first clamp arm 10 and the second clamp arm 20 to move closer to each other to clamp and close. The anti-slip strips 70 increase the roughness of the surface of the pressing block 60, thereby increasing the friction force of pressing the first clamp arm 10 and the second clamp arm 20, thereby driving the movement of the first clamp arm 10 and the second clamp arm 20.

[0044] The implementation principle of the anti-displacement biodegradable magnesium metal closing clamp of the embodiment of the present application is as follows: when in use, the metal closing clamp is moved to the tissue to be closed, and then the hinge structure 30 is opened, so that the distance between the No. 1 clamp arm 10 and the No. 2 clamp arm 20 is larger, which is convenient for the tissue to be closed to be relatively inserted between the No. 1 clamp arm 10 and the No. 2 clamp arm 20, and then the No. 1 clamp arm 10 and the No. 2 clamp arm 20 are brought closer to each other, that is, the hinge structure 30 is gradually closed. During this process, the No. 1 clamp arm 10 and the No. 2 clamp arm 20 are relatively displaced, so that the hook 11 and the safety lock buckle 21 are misaligned, and as the hinge structure 30 is deformed again, the hook 11 finally abuts against and clamps on the safety lock buckle 21, so that the hook 11 and the safety lock buckle 21 are fixed, realizing the closed and tightened No. 1 clamp arm 10 and the No. 2 clamp arm 20, thereby clamping and fixing the tissue to be closed, completing the self-locking fixation of the metal closing clamp, and avoiding slipping. The safety lock buckle 21 can also provide clear and distinct closing tactile feedback to ensure that the metal closing clip is closed completely, thereby increasing the stability of the metal closing clip in clamping the tissue to be closed.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A degradable magnesium metal closure clip that prevents displacement, characterized in that: The invention comprises a first clamp arm (10) and a second clamp arm (20), wherein the first clamp arm (10) and the second clamp arm (20) are connected via a hinge structure (30), a buckle hook (11) is arranged at one end of the first clamp arm (10) away from the hinge structure (30), and a safety lock buckle (21) is arranged at one end of the second clamp arm (20) away from the hinge mechanism, wherein the safety lock buckle (21) matches the buckle hook (11).

2. The anti-displacement degradable magnesium metal closure clip according to claim 1, characterized in that: A tension rope (40) is provided between the first clamp arm (10) and the second clamp arm (20), and two ends of the tension rope (40) are respectively fixedly mounted on the first clamp arm (10) and the second clamp arm through grooves.

3. The anti-displacement degradable magnesium metal closure clip according to claim 1, characterized in that: A bow-shaped structure is provided on the side wall of the first clamp arm (10) close to the second clamp arm (20), and a bow-shaped groove (22) is provided on the side wall of the second clamp arm (20) close to the first clamp arm (10), and the bow-shaped groove (22) matches the bow-shaped structure (12).

4. The anti-displacement degradable magnesium metal closure clip according to claim 3, characterized in that: The inner walls of the arched structure (12) and the arched groove (22) are both provided with a wavy curved surface (50).

5. The anti-displacement degradable magnesium metal closure clip according to claim 4, characterized in that: A plurality of anti-skid grooves (51) are provided on the wavy curved surface (50), and the plurality of anti-skid grooves (51) are arranged at intervals along the length direction of the wavy curved surface (50).

6. The anti-displacement degradable magnesium metal closure clip according to claim 1, characterized in that: One end of the first clamp arm (10) away from the hinge structure (30) is provided with a pointed cone (13) protruding toward the second clamp arm (20), and the second clamp arm (20) is provided with a slot (23) matching the pointed cone (13).

7. The anti-displacement degradable magnesium metal closure clip according to claim 6, characterized in that: A plurality of fixing steps (131) are provided on the side wall of the pointed cone (13), and the fixing steps (131) are arranged in sequence along the length direction of the pointed cone (13). A plurality of locking steps (231) are provided on the inner wall of the clamping slot (23), and the locking steps (231) are arranged in sequence along the depth direction of the clamping slot (23). The fixing steps (131) can fit tightly with the locking steps (231) to limit the relative displacement between the first clamping arm (10) and the second clamping arm (20).

8. The anti-displacement degradable magnesium metal closure clip according to claim 7, characterized in that: The end of the fixing step (131) away from the pointed cone (13) is tilted toward the direction close to the first clamp arm (10), and the end of the locking step (231) away from the connection between the locking step (231) and the inner wall of the clamping slot (23) is tilted toward the direction away from the first clamp arm (10).

9. The anti-displacement degradable magnesium metal closure clip according to claim 1, characterized in that: A pressing block (60) is provided on the side walls of the first clamp arm (10) and the second clamp arm (20) which are away from each other.

10. The anti-displacement degradable magnesium metal closure clip according to claim 9, characterized in that: A plurality of anti-slip strips (70) are provided on the side wall of the pressing block (60), and the plurality of anti-slip strips are arranged at intervals along the circumference direction of the pressing block (60).

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