A type of continuous-fire clamp magazine that facilitates stable clamping
By providing a limiting protrusion extending along the tissue clip delivery direction on the inner bottom wall of the clip compartment in the patent, the problem of tilted placement of tissue clips in continuous-fire clipping forceps is solved, and stable contact between the pusher tongue and the tail of the tissue clip is achieved, thus improving the success rate of clipping.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SURGAID MEDICAL XIAMEN CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
AI Technical Summary
In existing continuous-fire clamps, the tissue clips are placed at an angle in the clip magazine, which reduces the contact area between the pusher tongue and the tail of the tissue clip, making it easy for the clip to deviate or slip, thus affecting the success rate of clamping.
A limiting protrusion extending along the tissue clip transport direction is provided on the inner bottom wall of the clip compartment to ensure that the tissue clip is placed horizontally. The limiting protrusion abuts against the side wall of the tissue clip, increasing the contact area between the pusher tongue and the tail of the tissue clip.
It increases the contact area between the pusher tongue and the tissue clip, preventing clip slippage or deviation, thus improving the success rate of clip application. The structure is simple, easy to implement, and applicable to various clip designs.
Smart Images
Figure CN224421073U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, specifically a clamp magazine for continuous clamping forceps that facilitates stable clamping. Background Technology
[0002] Tissue clips are surgical instruments used in minimally invasive surgery to clamp tissue. When clamping, the tissue clip is pushed out of the clip, and then the clip head is used to close the tissue to achieve hold. For example, Teleflex Medical offers repeating clips and tissue clips; the tissue clip has a U-shaped locking structure, such as... Figure 1 The locking hook and latch both have protruding support bosses on their sides. The rear hinge side of the tissue clip has a smooth structure without bosses. The tissue clip is placed flat in a slightly closed manner in the open clip compartment. A push plate is then installed on top of the tissue clip. The front end of the push plate has a tongue at a certain angle. The push plate moves back and forth. During the pushing process, the tongue of the push plate presses against the tail of the tissue clip, thereby realizing the disengagement action of the tissue clip.
[0003] Because the tissue clips are placed flat in the clip compartment and have a support protrusion at the front but no support protrusion at the back, they cannot be placed horizontally in the clip compartment. Instead, they are placed at a certain angle, with the front higher than the back.
[0004] The angled tongue at the front of the pusher has certain limitations because it needs to take into account the retraction action after the tissue clip is pushed out. At the same time, the pusher tongue will interfere with the tissue clip during the return process and return to its original position by elastic deformation. After repeated repetitions, the angle of the pusher tongue will become smaller.
[0005] Based on the non-horizontal characteristics of the tissue clip itself and the limitations of the pusher tongue, when the pusher pushes the tissue clip out of the jaws, the effective area of the pusher tongue against the tail of the tissue clip may be reduced, the pusher may deviate, or the pusher tongue may brush past the edge of the tissue clip, thus leading to the failure of clamp closure. Summary of the Invention
[0006] The purpose of this invention is to provide a continuously firing clamp magazine that facilitates stable clamping, ensuring that the pusher tongue can make effective and secure contact with the hinge at the tail of the tissue clip, thereby ensuring smooth clamping.
[0007] The objective of this utility model is achieved through the following technical solution: a clamp magazine for a continuous-fire clamping device that facilitates stable clamping, comprising a groove-shaped clamp magazine and a push plate slidably disposed at the upper opening of the clamp magazine. A compartment for placing tissue clips is formed between the push plate and the inner wall of the clamp magazine. The tissue clip includes two curved arms, and the support protrusions at the front ends of each curved arm abut against the bottom surface of the push plate and the inner bottom wall of the clamp magazine, respectively. The inner bottom wall of the clamp magazine is provided with a limiting protrusion extending along the tissue clip conveying direction. The limiting protrusion is located between the support protrusions at the front ends of the two curved arms and abuts against the side wall of the tissue clip.
[0008] Compared with the prior art, the advantages of this utility model are:
[0009] 1. The present invention has a limiting protrusion extending along the tissue clip conveying direction on the bottom wall of the clip compartment, which allows the tissue clip to be placed horizontally and increases the contact area between the pusher tongue and the tail of the tissue clip.
[0010] 2. This utility model can avoid the phenomenon of the push plate slipping or being pushed off course, thus improving the success rate of clamping;
[0011] 3. This utility model has a simple structure, is easy to implement, and is applicable to various clamp designs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of an tissue clip.
[0013] Figure 2 This is a schematic diagram of an embodiment of a continuous-fire clamping clamp magazine that facilitates stable clamping according to this utility model.
[0014] Figure 3 This is a schematic diagram showing the disassembled clamp compartment of a continuous-fire clamping pliers that facilitates stable clamping according to this utility model.
[0015] Figure 4 This is a schematic diagram of the working state of a continuous-fire clamping clamp magazine that facilitates stable clamping according to this utility model.
[0016] Labeling explanation: 1 Clip compartment, 2 Push plate, 3 Tissue clip, 3-1 Curved arm, 3-2 Support boss, 4 Limiting boss, 5 Push plate tongue. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:
[0018] like Figures 1 to 4 The diagram shown is a schematic representation of an embodiment of a continuous-fire clamping pliers magazine that facilitates stable clamping, provided by this utility model.
[0019] A clamp magazine for a continuous-fire clamp that facilitates stable clamping includes a groove-shaped clamp magazine 1 and a push plate 2 slidably disposed at the upper opening of the clamp magazine 1. A compartment for placing a tissue clip 3 is formed between the push plate 2 and the inner wall of the clamp magazine 1. The tissue clip 3 includes two curved arms 3-1. The support boss 3-2 at the front end of each curved arm 3-1 abuts against the bottom surface of the push plate 2 and the inner bottom wall of the clamp magazine 1, respectively. The inner bottom wall of the clamp magazine 1 is provided with a limiting protrusion 4 extending along the conveying direction of the tissue clip 3. The limiting protrusion 4 is located between the support bosses 3-2 at the front ends of the two curved arms 3-1 and abuts against the side wall of the tissue clip 3.
[0020] The limiting protrusion 4 and the clamping compartment 1 are fixed by welding or snap-fit connection; or the limiting protrusion 4 and the clamping compartment 1 are integrally formed, such as by stamping a protrusion.
[0021] The thickness of the limiting protrusion 4 is equal to or slightly less than the thickness of the sidewall of the tissue clip 3 extending from the supporting protrusion 3-2.
[0022] The length of the limiting protrusion 4 is equal to or slightly less than the length of the arrangement of each tissue clip 3 in the clip compartment 1.
[0023] Alternatively, the extension length of the limiting protrusion 4 is at least greater than the length of one tissue clip 3, and the limiting protrusion 4 is disposed on the side wall at the front outlet of the clip compartment 1 to support the foremost tissue clip 3 at the opening of the clip compartment.
[0024] One or more limiting protrusions 4 are provided.
[0025] The limiting protrusion 4 is made of metal or plastic.
[0026] The limiting protrusion 4 raises the hinge end of the tissue clip tail, allowing the tissue clip to be placed horizontally, effectively increasing the contact area between the pusher tongue and the tail of the tissue clip, and preventing the pusher forceps from slipping off.
[0027] The operation process of this utility model is as follows:
[0028] 1. For example Figure 2 The clamp compartment 1 shown is a base. The bottom wall of the clamp compartment 1 is fixedly provided with a limiting protrusion 4. The tissue clip 3 is placed flat in the clamp compartment and located on the limiting protrusion 4. A push plate 2 that can move back and forth is covered on the plane of the tissue clip 3.
[0029] 2. When the handle is activated, the push plate 2 moves forward, which in turn pushes the tissue clip 3 in the clip compartment 1 to move forward;
[0030] 3. For example Figure 4 As shown, when a tissue clip 3 appears at the front end of the clip compartment 1, the pusher tongue 5 can be pushed to the hinge at the tail of the tissue clip to the jaws.
Claims
1. A clamp magazine for a continuous-fire clamp that facilitates stable clamping, comprising a groove-shaped clamp magazine (1) and a pusher plate (2) slidably disposed at the upper opening of the clamp magazine (1), wherein a compartment for placing tissue clips (3) is formed between the pusher plate (2) and the inner wall of the clamp magazine (1), the tissue clips (3) comprising two curved arms (3-1), wherein a support boss (3-2) at the front end of each curved arm (3-1) abuts against the bottom surface of the pusher plate (2) and the inner bottom wall of the clamp magazine (1), characterized in that: The inner bottom wall of the clip compartment (1) is provided with a limiting protrusion (4) extending along the conveying direction of the tissue clip (3). The limiting protrusion (4) is located between the support protrusions (3-2) at the front end of the two curved arms (3-1) and abuts against the side wall of the tissue clip (3).
2. The continuous-fire clamp magazine for stable clamping as described in claim 1, characterized in that: The thickness of the limiting protrusion (4) is equal to or slightly less than the thickness of the support protrusion (3-2) extending out of the side wall of the tissue clip (3).
3. The continuous-fire clamp magazine for stable clamping as described in claim 1, characterized in that: One or more of the limiting protrusions (4) are provided.
4. The continuous-fire clamp magazine for stable clamping as described in claim 1, characterized in that: The limiting protrusion (4) is made of metal or plastic.
5. The continuous-fire clamp magazine for stable clamping according to claim 1, characterized in that: The length of the limiting protrusion (4) is equal to or slightly less than the length of the arrangement of each tissue clip (3) in the clip compartment (1).
6. The continuous-fire clamp magazine for stable clamping according to claim 1, characterized in that: The extension length of the limiting protrusion (4) is at least greater than the length of a tissue clip (3), and the limiting protrusion (4) is disposed on the side wall at the front outlet of the clip compartment (1).
7. The continuous-fire clamp magazine for stable clamping according to claim 1, characterized in that: The limiting protrusion (4) and the clamp compartment (1) are fixed by welding or snap-fit connection; or the limiting protrusion (4) and the clamp compartment (1) are integrally formed.