Clamping forceps for changing radian of surgical suture needle
By designing the serrated part of the clamping forceps and the triangular clamping head structure, the problem of uneven needle curvature was solved, enabling the smooth passage and uniform adjustment of the needle in abdominal trocars of different diameters.
Patent Information
- Application Number
- CN202520275874.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing technologies, the surgical suture needle has an uneven curvature when passing through a small-diameter abdominal trocar, which affects the surgical procedure.
Design a clamping pliers, including a first clamping body and a second clamping body, to adjust the curvature of the suture needle through a serrated section. The tooth pitch of the first serrated section and the second serrated section are different. In conjunction with a triangular clamping head and a positioning tooth structure, the curvature of the suture needle can be adjusted quickly and evenly.
It enables rapid and uniform adjustment of the suture needle curvature, making it suitable for abdominal paracentesis instruments of different diameters, thereby improving the efficiency and effectiveness of surgical procedures.
Smart Images
Figure CN223715776U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to surgical clamping forceps technical field, especially a kind of clamping forceps for changing surgical suture needle camber. BACKGROUND
[0002] In laparoscopic minimally invasive surgery, surgical suture needle needs to be placed into abdominal cavity through abdominal puncture device. With the gradually increasing requirement of minimally invasive, currently surgical suture needle is widely used in 5mm or even 3mm abdominal puncture device, which leads to that part of commercial 1 / 2 camber surgical suture needle cannot pass directly. The method of adjusting surgical suture needle camber by using vessel forceps to clamp manually is used in clinic, so that the camber of suture needle is reduced, thereby making it pass through abdominal puncture device of different diameters. However, this method will lead to uneven suture needle camber, which affects the operation of suturing tissue in subsequent surgery. SUMMARY
[0003] The utility model aims at overcoming the defects of prior art, and provides a kind of clamping forceps for changing surgical suture needle camber, which can quickly and uniformly adjust suture needle camber, so that surgical suture needle meets the requirement of abdominal puncture device of different diameters.
[0004] The utility model can be realized by the following technical solutions:
[0005] Compared with prior art, the utility model has the following advantages and beneficial effects:
[0006] A kind of clamping forceps for changing surgical suture needle camber, including compatible first forceps body and second forceps body, the first forceps body includes the first clamping head, first shaft segment and first holding part connected, the second forceps body includes the second clamping head, second shaft segment and second holding part connected, the first forceps body and the second forceps body are hinged by the shaft pin between the first shaft segment and the second shaft segment;
[0007] The first clamping head and the second clamping head are provided with sawtooth part on the opposite clamping surface, to change surgical suture needle camber;
[0008] The sawtooth part includes first sawtooth subpart and second sawtooth subpart, and the tooth pitch between any two adjacent sawteeth in the first sawtooth subpart is less than the tooth pitch between any two adjacent sawteeth in the second sawtooth subpart.
[0009] Further, the sawteeth in the first sawtooth subpart are distributed with equal tooth pitch. Preferably, the tooth pitch between adjacent two sawteeth in the first sawtooth subpart is L1, and L1 is 0.3-0.4mm.
[0010] Further, the teeth in the second sawtooth section are distributed with equal tooth pitch. Preferably, the tooth pitch between two adjacent teeth in the second sawtooth section is denoted as L2, and L2 is 0.4-0.6 mm.
[0011] Further, the first clamping head and the second clamping head are both triangular, and the width of the front end of the first clamping head and the second clamping head is greater than the width of the rear end of the first clamping head and the second clamping head. Specifically, the first clamping head and the second clamping head are arranged in mirror symmetry, and the front end of the first clamping head and the second clamping head refers to the end close to the first shaft segment and the second shaft segment, respectively.
[0012] Further, the front end of the first clamping head and the second clamping head is provided with a chamfer.
[0013] Further, the first holding part and the second holding part are respectively provided with a first positioning tooth and a second positioning tooth; the first positioning tooth and the second positioning tooth are separated from each other or overlapped with each other in front and back, and a plurality of teeth for mutual buckling are arranged on the longitudinal plane of mutual overlap, respectively.
[0014] Further, the end of the first holding part and the end of the second holding part are respectively provided with a first handle ring and a second handle ring.
[0015] Compared with the prior art, the clamping forceps provided by the utility model can quickly and uniformly adjust the curvature of the surgical suture needle, so that the surgical suture needle is suitable for the requirements of laparoscopy puncture devices with different diameters. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The front view of the clamping forceps for changing the curvature of the surgical suture needle is provided for the embodiment;
[0017] Figure 2 The side view of the clamping forceps for changing the curvature of the surgical suture needle is provided for the embodiment;
[0018] Figure 3 The Figure 1 The enlarged view of the clamping head;
[0019] Figure 4 The schematic diagram of the surgical suture needle clamped before and after;
[0020] The mark in the figure is explained: 1-first forceps body; 101-first clamping head; 102-first shaft segment; 103-first holding part; 104-first handle ring; 2-second forceps body; 201-second clamping head; 203-second holding part; 204-second handle ring; 3-sawtooth part; 301-first sawtooth subpart; 302-second sawtooth subpart; L1-tooth pitch between two adjacent sawteeth in the first sawtooth subpart; L2-tooth pitch between two adjacent sawteeth in the second sawtooth subpart. DETAILED DESCRIPTION
[0021] The specific embodiments of the utility model are described in detail below by examples, which are implemented on the premise of the scheme described in the utility model, and detailed implementation and specific operation process are given, but the protection scope of the utility model is not limited to the following examples.
[0022] The utility model is further described below in combination with the drawings and specific examples. In the technical scheme, the features such as component model, material name, connection structure, preparation means, material, structure or component ratio, which are not explicitly described, are regarded as common technical features disclosed in prior art.
[0023] Embodiment
[0024] In order to quickly and uniformly adjust the curvature of the surgical suture needle, so that the surgical suture needle is suitable for the requirements of different diameter abdominal puncture devices, the embodiment provides a clamping forceps for changing the curvature of the surgical suture needle, and the specific structure is shown in Figures 1-3 ; including a first forceps body 1 and a second forceps body 2 matched with each other, the first forceps body 1 includes a first clamping head 101, a first shaft segment 102 and a first holding part 103 connected with each other, the second forceps body 2 includes a second clamping head 201, a second shaft segment and a second holding part 203 connected with each other, and the first forceps body 1 and the second forceps body 2 are hinged through a shaft pin arranged between the first shaft segment 102 and the second shaft segment.
[0025] The opposite clamping surfaces of the first clamping head 101 and the second clamping head 201 are provided with sawtooth parts 3 to change the curvature of the surgical suture needle.
[0026] The sawtooth part 3 includes a first sawtooth subpart 301 and a second sawtooth subpart 302, and the tooth pitch between any two adjacent sawteeth in the first sawtooth subpart 301 is smaller than the tooth pitch between any two adjacent sawteeth in the second sawtooth subpart 302.
[0027] In the embodiment, the sawteeth in the first sawtooth subpart 301 are distributed with equal tooth pitch. Preferably, the tooth pitch between two adjacent sawteeth in the first sawtooth subpart 301 is denoted as L1, and L1 is 0.3-0.4 mm.
[0028] In the embodiment, the sawteeth in the second sawteeth section 302 are distributed with equal tooth pitch. Preferably, the tooth pitch between any two adjacent sawteeth in the second sawteeth section 302 is denoted as L2, and L2 is 0.4-0.6 mm.
[0029] In the embodiment, the first clamping head 101 and the second clamping head 201 are both triangular, and the width of the front end of the first clamping head 101 and the second clamping head 201 is greater than the width of the rear end of the first clamping head 101 and the second clamping head 201. Specifically, the first clamping head and the second clamping head are arranged in mirror symmetry, and the front end of the first clamping head and the second clamping head refers to the end close to the first shaft segment and the second shaft segment, respectively.
[0030] In the embodiment, the front end of the first clamping head 101 and the second clamping head 201 is provided with a chamfer.
[0031] In the embodiment, the first holding part 103 and the second holding part 203 are respectively provided with first positioning teeth and second positioning teeth; the first positioning teeth and the second positioning teeth are separated from each other or overlap each other in front and back, and a plurality of teeth for mutual engagement are arranged on the longitudinal plane of mutual overlap, respectively.
[0032] In the embodiment, the end of the first holding part 103 and the end of the second holding part 203 are respectively provided with a first handle ring 104 and a second handle ring 204.
[0033] Working principle:
[0034] The first clamping head 101 and the second clamping head 201 of the clamping forceps provided in the embodiment are both triangular, and the width of the front end of the first clamping head 101 and the second clamping head 201 is greater than the width of the rear end of the first clamping head 101 and the second clamping head 201; the tooth pitch between any two adjacent sawteeth in the first sawteeth section 301 is less than the tooth pitch between any two adjacent sawteeth in the second sawteeth section 302. The first sawteeth section 301 is suitable for small size surgical suture needles, and the second sawteeth section 302 is suitable for large size surgical suture needles. The first forceps body 1 and the second forceps body 2 are connected by a shaft pin, and as the clamping surfaces of the first clamping head 101 and the second clamping head 201 approach each other, the surgical suture needles of various sizes can be adjusted to a small arc, so as to be placed into the abdominal cavity through the laparoscopic puncture device for operation. Figure 4 .
[0035] The above description of the embodiments is to facilitate the ordinary skilled in the art to understand and use the utility model. The person skilled in the art can obviously easily make various modifications to these embodiments, and the general principles described herein are applied to other embodiments without the need for creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by the person skilled in the art according to the disclosure of the utility model without departing from the scope of the utility model should be within the protection scope of the utility model.
Claims
1. A clamp for changing the curvature of a surgical needle, comprising a first clamp body (1) and a second clamp body (2) which are adapted to each other, the first clamp body (1) comprising a first clamp head (101), a first shaft segment (102) and a first holding part (103) which are connected to each other, the second clamp body (2) comprising a second clamp head (201), a second shaft segment and a second holding part (203) which are connected to each other, the first clamp body (1) and the second clamp body (2) being hinged by a shaft pin provided between the first shaft segment (102) and the second shaft segment, characterized in that, the first clamp head (101) and the second clamp head (201) are provided with sawtooth parts (3) on the opposite clamping surfaces thereof to change the curvature of the surgical needle. The sawtooth parts (3) comprise a first sawtooth part (301) and a second sawtooth part (302), the tooth distance between any two adjacent sawteeth in the first sawtooth part (301) being smaller than the tooth distance between any two adjacent sawteeth in the second sawtooth part (302). The sawteeth in the first sawtooth part (301) are distributed at equal tooth distances.
2. The needle holder according to claim 1, wherein The tooth distance between two adjacent sawteeth in the first sawtooth part (301) is denoted as L1, and L1 is 0.3-0.4 mm.
3. The needle holder according to claim 2, wherein, The sawteeth in the second sawtooth part (302) are distributed at equal tooth distances.
4. The needle holder according to claim 1, wherein, The tooth distance between two adjacent sawteeth in the second sawtooth part (302) is denoted as L2, and L2 is 0.4-0.6 mm.
5. The needle holder according to claim 4, wherein, The first clamp head (101) and the second clamp head (201) are triangular, and the width of the front end of the first clamp head (101) and the second clamp head (201) is greater than the width of the rear end of the first clamp head (101) and the second clamp head (201).
6. The needle holder according to claim 1, wherein, The front end of the first clamp head (101) and the second clamp head (201) is provided with a chamfer.
7. The needle holder according to claim 6, wherein, The first holding part (103) and the second holding part (203) are respectively provided with first positioning teeth and second positioning teeth.
8. The needle holder according to claim 1, wherein, The first positioning teeth and the second positioning teeth are separated from each other or overlap each other in front and back, and a plurality of teeth for mutual engagement are respectively provided on the longitudinal plane of the mutual overlap.
9. The needle holder according to claim 8, wherein, The end of the first holding part (103) and the end of the second holding part (203) are respectively provided with a first handle ring (104) and a second handle ring (204).
10. The needle holder according to claim 1, wherein,