Tissue clip applier and hemostatic clip

Abstract

The utility model discloses a kind of tissue clamping and closing with pincers head clamp and hemostatic clamp, tissue clamping and closing with pincers head clamp includes clamp body, the clamp body includes two clamping pieces that are connected together at rear end and oppositely arranged, the outer wall surface of the rear portion of the clamping piece is equipped with the limiting protrusion extending outwardly. The utility model can be well limited in the sleeve of hemostatic clamp, to avoid the phenomenon of clamping tissue failure after release.

Description

Technical Field

[0001] This utility model relates to a forceps clamp for tissue clamping and a hemostatic clamp, belonging to the field of medical device technology. Background Technology

[0002] Currently, hemostatic clips are medical devices used to clamp tissue to stop bleeding. Chinese patent CN222285547U discloses a clamping head assembly and a hemostatic clip, which achieves the clamping from open to closed by the movement of the clamping piece in a sleeve. However, after the clamping piece is closed, it cannot be well confined within the sleeve, which may lead to the clamping piece failing to clamp the tissue. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a forceps clamp for tissue clamping, which can be well confined in the sleeve of the hemostatic clamp, thereby avoiding the phenomenon of tissue clamping failure after release.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a forceps head clamp for tissue clamping, including a clamp body, the clamp body including two clamping pieces connected together at their rear ends and arranged opposite each other, and the outer wall surface of the rear part of the clamping pieces is provided with an outwardly extending limiting protrusion.

[0005] Furthermore, to facilitate the connection between the clamp body and other components of the hemostatic clamp for easy release and connection of the clamp head, the clamp body also includes a connecting piece, and the rear ends of the two clamp pieces are connected together by the connecting piece.

[0006] Furthermore, the connecting piece is provided with an axially through connecting hole.

[0007] Furthermore, to facilitate the release of the pliers head including the pliers clamp, the connecting piece has a release groove around the connecting hole.

[0008] Furthermore, the clip includes a limiting setting part located at the rear of the clip, and the limiting protrusion is provided in the limiting setting part.

[0009] Furthermore, a portion of the limiting setting part is cut to form a cutting arm with one end connected to the limiting setting part, and the cutting arm is bent outward to form the limiting protrusion.

[0010] Furthermore, the clip also includes a clamping part, and the front ends of the two clamping parts are provided with interlocking teeth that cooperate with each other.

[0011] Furthermore, the clamp also includes an opening and closing function part, the front end of which is connected to the clamping part, the front end of which forms a closing function end, the two closing function ends are adapted to be applied inward to bring the two clamps closer to each other to close, and the rear end of which forms an opening function end, the two opening function ends are adapted to be applied outward to separate the two clamps from each other to open.

[0012] Furthermore, when the clamp is in the closed state, the distance between the two closed ends is greater than the distance between the two open ends;

[0013] And / or the two closing ends bulge outwards, and the two opening ends are concave inwards.

[0014] Furthermore, in order to provide a certain strength to the clamping part and thus enhance the strength of the clamping mechanism, the width of the clamping part is greater than the width of the opening and closing action part;

[0015] And / or the cross-section of the clamp is a V-shaped structure.

[0016] Furthermore, this utility model also provides a hemostatic clip, which includes a forceps clamp for clamping the tissue.

[0017] After adopting the above technical solution, the tissue clamping clamp head, the sleeve of the hemostatic clamp, and the stop pin of this utility model constitute a hemostatic clamp head that can be released. When the clamp head is released, the two clamping plates of the clamp body close, and the limiting protrusion at the rear end of the clamping plate cooperates in the limiting cavity groove of the sleeve, thereby restricting the movement of the clamp body and avoiding the phenomenon that the clamp body moves in the sleeve, causing the two clamping plates to open and resulting in failure of clamping tissue. Attached Figure Description

[0018] Figure 1 The three-dimensional forceps clamp for tissue clamping of this utility model Figure 1 ;

[0019] Figure 2 The three-dimensional forceps clamp for tissue clamping of this utility model Figure 2 ;

[0020] Figure 3 A cross-sectional view of the forceps head of the tissue clamping forceps of this utility model in the open state;

[0021] Figure 4 A cross-sectional view of the forceps head of the tissue clamping forceps of this invention in the released state;

[0022] Figure 5 for Figure 2 Enlarged view of part A in the image; where,

[0023] 1. Clamp body; 11. Clamping piece; 12. Limiting protrusion; 13. Connecting piece; 13a. Connecting hole; 13b. Release groove; 14. Placement hole; 11a. Limiting setting part; 11b. Clamping part; 11b1. Engaging teeth; 11c. Opening and closing action part; 11c1. Closing action end; 11c2. Opening action end;

[0024] 2. Sleeve; 21. Sleeve bottom; 22. Stepped wall; 23. Limiting cavity groove;

[0025] 3. Stop pin. Detailed Implementation

[0026] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] like Figures 1-5 As shown, a forceps clamp for tissue clamping includes a clamp body 1. The clamp body 1 includes two clamping pieces 11 connected together at their rear ends and arranged opposite each other. The outer wall surface of the rear part of the clamping pieces 11 is provided with an outwardly extending limiting protrusion 12.

[0028] In this embodiment, during actual operation, the front end is close to the tissue to be clamped, that is... Figure 3 The direction of the dotted arrow in the image is such that the rear end is away from the tissue to be clamped.

[0029] In actual use, such as Figure 3 , 4 As shown, in this embodiment, the tissue clamping forceps head, the sleeve 2 of the hemostatic clamp, and the stop pin 3 constitute the releasable forceps head of the hemostatic clamp. Of course, the hemostatic clamp also includes a release component, which is used to release the forceps head. The release component can adopt the structure in the prior art, which is not the focus of this embodiment and will not be described in detail.

[0030] Specifically, such as Figure 3 , 4 As shown, a stop pin 3 is installed inside the sleeve 2. The rear end of the sleeve 2 is provided with a bottom 21 and the middle part of the sleeve 2 is provided with a stepped wall 22. A limiting cavity 23 is formed between the stepped wall 22 and the bottom 21. After the clamping body 1 is pulled backward and the clamping head is released, the limiting protrusion 12 moves to be accommodated in the limiting cavity 23. The limiting protrusion 12 is restricted by the bottom 21 and the stepped wall 22, thereby avoiding the phenomenon that the clamping body 1 moves forward and causes the two clamping pieces 11 to open, resulting in failure of the clamping tissue.

[0031] Specifically, to facilitate the connection of clamp body 1 with other parts of the hemostatic clamp for easy release and connection of the clamp head, such as... Figure 1 As shown, the clamp 1 also includes a connecting piece 13, and the rear ends of the two clamp pieces 11 are connected together through the connecting piece 13.

[0032] In this embodiment, the clamp 1 can be made as a single piece, but it is not limited to this.

[0033] Specifically, such as Figures 1-5 As shown, the connecting piece 13 has an axially through connecting hole 13a; in this embodiment, the release shaft of the release component of the hemostatic clip is connected to the connecting hole 13a.

[0034] Specifically, to facilitate the release of the jaws, including the jaw clamp, such as Figures 1-4 As shown, the connecting piece 13 has a release groove 13b around the connecting hole 13a. In this embodiment, there are four release grooves 13b, which are evenly distributed around the connecting hole 13a. When the clamping body 1 is pulled backward until it cannot move inside the sleeve 2, the release shaft can be better disengaged from the connecting hole 13a or better torn apart from the periphery of the connecting hole 13a due to the setting of the release grooves 13b, thereby releasing the entire clamp head. The number of release grooves 13b is not limited to four and can be set according to the specific situation.

[0035] Specifically, such as Figures 1-5 As shown, the clip 11 may also include a limiting setting part 11a located at the rear of the clip 11, and a limiting protrusion 12 is provided in the limiting setting part 11a.

[0036] Specifically, a portion of the cutting limit setting part 11a forms a cutting arm with one end connected to the limit setting part 11a. The cutting arm is bent outward to form a limit protrusion 12. After the cutting arm is bent outward, a retention hole 14 is formed on the limit setting part 11a.

[0037] Specifically, such as Figures 1-5 As shown, the clamp 11 also includes a clamping portion 11b, and the front ends of the two clamping portions 11b are provided with interlocking teeth 11b1 that cooperate with each other. The number of interlocking teeth 11b1 can be set as required and is arranged along the width direction of the clamping portion 11b.

[0038] Specifically, such as Figures 1-5 As shown, the clamp 11 also includes an opening and closing part 11c. The front end of the opening and closing part 11c is connected to the clamping part 11b. The front end of the opening and closing part 11c forms a closing end 11c1. The two closing ends 11c1 are adapted to be forcefully applied inward to bring the two clamps 11 closer together to close. Specifically, when the clamp 1 moves backward in the sleeve 2, the outer sides of the two closing ends 11c1 can be squeezed by the inner wall surface of the sleeve 2, i.e., force is applied inward, thereby bringing the two clamps 11 closer together to close, thus clamping the tissue and achieving hemostasis. The rear end of the opening and closing part 11c forms an opening end 11c2. The two opening ends 11c2 are adapted to be forcefully applied outward to separate the two clamps 11 from each other to open. Specifically, when the clamp head is not released, the clamp 1 is located in front in the sleeve 2, i.e. Figure 3In the open state, the inner sides of the two opening ends 11c2 are supported by the retaining pin 3, that is, they are subjected to force to the outside, which causes the two clips 11 to separate from each other and be in the open state.

[0039] Specifically, such as Figure 4 As shown, when the clamp 1 is in the closed state, the distance between the two closed action ends 11c1 is greater than the distance between the two open action ends 11c2.

[0040] Specifically, such as Figure 4 As shown, the two closed ends 11c1 bulge outwards, while the two open ends 11c2 are concave inwards.

[0041] Specifically, such as Figure 4 As shown, in order to provide a certain strength to the clamping part 11b and thus enhance the strength of the clamping mechanism of the clamping body 1, the width of the clamping part 11b is greater than the width of the opening and closing action part 11c; the cross-section of the clamping part 11b can be a V-shaped structure.

[0042] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A forceps clamp for tissue clamping, characterized in that, Includes a clamping body (1), which includes two clamping pieces (11) connected together at their rear ends and arranged opposite each other. The outer wall surface of the rear part of the clamping piece (11) is provided with an outwardly extending limiting protrusion (12). The clamp (1) also includes a connecting piece (13), and the rear ends of the two clamp pieces (11) are connected together by the connecting piece (13); The connecting piece (13) is provided with an axially through connecting hole (13a).

2. The forceps clamp for tissue clamping according to claim 1, characterized in that, The connecting piece (13) has a release groove (13b) around the connecting hole (13a).

3. The forceps clamp for tissue clamping according to claim 1, characterized in that, The clip (11) includes a limiting setting part (11a) located at the rear of the clip (11), and the limiting protrusion (12) is provided in the limiting setting part (11a).

4. The forceps clamp for tissue clamping according to claim 3, characterized in that, A portion of the limiting setting part (11a) is cut to form a cutting arm with one end connected to the limiting setting part (11a), and the cutting arm is bent outward to form the limiting protrusion (12).

5. The forceps clamp for tissue clamping according to claim 1, characterized in that, The clip (11) also includes a clip (11b), and the front ends of the two clips (11b) are provided with interlocking teeth (11b1).

6. The forceps clamp for tissue clamping according to claim 5, characterized in that, The clip (11) further includes an opening and closing part (11c), the front end of which is connected to the clip (11b). The front end of the opening and closing part (11c) forms a closing end (11c1). The two closing ends (11c1) are adapted to be applied inward to bring the two clips (11) closer to each other to close. The rear end of the opening and closing part (11c) forms an opening end (11c2). The two opening ends (11c2) are adapted to be applied outward to separate the two clips (11) from each other to open.

7. The forceps clamp for tissue clamping according to claim 6, characterized in that, When the clamp (1) is in the closed state, the distance between the two closed working ends (11c1) is greater than the distance between the two open working ends (11c2); And / or the two closed working ends (11c1) bulge outwards, and the two open working ends (11c2) are concave inwards; And / or the width of the clamp (11b) is greater than the width of the opening and closing action part (11c); And / or the cross-section of the clamp (11b) is a V-shaped structure.

8. A hemostatic clip, characterized in that, It contains a forceps head clamp as described in any one of claims 1 to 7.

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