Operation needle holding device

By combining the design of drive gears and adjusting gear discs, the problem that existing needle holders cannot adjust to different sizes of surgical needles is solved, and the same needle holder can stably hold surgical needles of different sizes, reducing the types and costs of needle holders.

CN223614870UActive Publication Date: 2025-12-02SUN YAT SEN MEMORIAL HOSPITAL SUN YAT SEN UNIV
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Patent Information

Application Number
CN202520233850.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-12-02
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Existing needle holders cannot be easily adjusted according to different sizes of surgical needles, resulting in the need to use different needle holders, which increases costs and affects the clamping effect.

Method used

The drive gear rotates the adjusting gear plate, the traction plate adjusts the distance between the three clamping blocks, and the clamping blocks are stabilized by fastening bolts and limiting grooves, thus achieving the clamping of surgical needles of different sizes.

Benefits of technology

It enables stable clamping and fixation of surgical needles of different sizes using the same needle holder, reducing the types and costs of needle holders and improving the ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a surgical needle holding device, which relates to the technical field of medical instruments and comprises a holding mechanism and a clamping mechanism, the clamping mechanism comprises a fixing plate, a driving gear is rotatably mounted on one side of the inner wall of the fixing plate, an adjusting fluted disc meshed with the driving gear is rotatably sleeved on the outer side of the top of the fixing plate, and the adjusting fluted disc is meshed with the driving gear. Three traction plates are rotationally installed on the top of the adjusting fluted disc, and clamping blocks used for clamping surgical needles are arranged at the bottoms of the ends, away from the adjusting fluted disc, of the three traction plates. The operation panel can control the driving gear to work, then the driving gear can rotate to drive the adjusting fluted disc to rotate, the distance between the three clamping blocks can be adjusted through the traction effect of the traction plate, the three clamping blocks can clamp and fix operation needles of different sizes, and the operation efficiency is improved. And therefore, medical staff can conveniently operate the surgical needle.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a surgical needle holding device. Background Technology

[0002] Needle holders are a common type of surgical instrument, primarily used to hold suture needles for suturing and ligating tissues. Generally, needle holders are divided into two types: long needle holders, mainly used for suturing and ligating deeper tissues in the thoracic and abdominal cavities; and short needle holders, generally used for hemostasis and suturing of superficial tissues or skin wounds. There is also a special type of needle holder, such as those used in laparoscopic, thoracic, and robotic surgical systems.

[0003] The existing technology has the following shortcomings: the existing needle holding device cannot be easily adjusted according to the different sizes of surgical needles during use. Therefore, different needle holders are required when clamping different surgical needles. It is not possible to use the same needle holder to clamp surgical needles of different sizes, which will increase the cost of the needle holder and affect the clamping and use of surgical needles. Utility Model Content

[0004] The purpose of this invention is to provide a surgical needle holding device. The rotation of the drive gear can drive the adjustment gear plate to rotate, and the traction of the traction plate can adjust the distance between the three clamping blocks, so that the three clamping blocks can clamp and fix surgical needles of different sizes, thereby allowing medical staff to operate the surgical needles in a continuous manner, thus solving the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a surgical needle holding device, including a gripping mechanism, and further comprising:

[0006] A clamping mechanism, located on the inner wall of one end of the gripping mechanism, is used to clamp and fix the surgical needle;

[0007] The clamping mechanism includes a fixed plate, a drive gear is rotatably mounted on one side of the inner wall of the fixed plate, an adjusting gear plate that meshes with the drive gear is rotatably sleeved on the outer top of the fixed plate, and three traction plates are rotatably mounted on the top of the adjusting gear plate. Each of the three traction plates has a clamping block for clamping the surgical needle at the bottom of the end away from the adjusting gear plate.

[0008] Preferably, the gripping mechanism includes a connecting seat, an operation panel is fixedly installed on the top of the connecting seat, and a handle is fixedly installed on the outer wall of one end of the connecting seat.

[0009] Preferably, the end of the connecting seat away from the handle is rotatably mounted with a mounting seat, and the bottom inner wall of the mounting seat has three limiting grooves that are movably connected to the outer wall of the clamping block.

[0010] Preferably, the top of the inner wall of the mounting base is movably connected to the fixing plate, the inner wall of the fixing plate has three movable grooves, and the top inner wall of the fixing plate has three mounting holes circumferentially spaced at equal intervals.

[0011] Preferably, each of the three clamping blocks has a movable seat fixedly installed on its top. The outer top of each of the three movable seats is rotatably connected to the inner wall of the end of the three traction plates away from the adjusting gear plate. The outer wall of each of the three movable seats is movably connected to the inner wall of the three movable slots.

[0012] Preferably, each of the three mounting holes has a fastening bolt threaded into its inner wall, and each of the three fastening bolts has a pressure plate threaded onto its outer wall. The bottom of each of the three pressure plates is movably connected to the top of the adjusting gear plate.

[0013] Preferably, the bottom diameter of the fixing plate is the same as the inner diameter of the mounting base, the top diameter of the fixing plate is the same as the inner diameter of the adjusting gear, and the outer diameter of the adjusting gear is the same as the outer diameter of the mounting base.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. The drive gear is rotated by the control panel. Through the meshing of the gear components, the adjusting gear plate rotates outside the fixed plate. Through the traction of the three traction plates, the distance between the three clamping blocks can be adjusted, so that the three clamping blocks can clamp and fix surgical needles of different sizes. At the same time, the rotational connection between the mounting base and the connecting base can be conveniently adjusted according to the needs of the mounting base tilt angle, which can facilitate the operation of surgical needles by medical staff.

[0016] 2. By fastening bolts through the pressure plate and threadedly connecting to the inner wall of the adjacent mounting holes, the pressure plate can press and limit the rotation of the adjusting gear plate. At the same time, the movable groove can limit the movement of the movable seat, and the limiting groove can limit the movement of the clamping blocks. Thus, the three clamping blocks remain stable during the adjustment process, and the three clamping blocks can stably clamp and fix surgical needles of different sizes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a partial cross-sectional view of the present invention.

[0020] Figure 3 This utility model Figure 2 Enlarged view of part A.

[0021] Figure 4 This is a three-dimensional structural diagram of the gripping mechanism of this utility model.

[0022] Figure 5 This is an exploded view of the three-dimensional structure of the clamping mechanism of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Grip mechanism; 101. Connecting seat; 102. Control panel; 103. Handle; 104. Mounting seat; 105. Limiting groove;

[0025] 2. Clamping mechanism; 201. Fixed plate; 202. Drive gear; 203. Movable groove; 204. Adjusting gear plate; 205. Traction plate; 206. Movable seat; 207. Clamping block; 208. Mounting hole; 209. Pressure plate; 210. Fastening bolt. Detailed Implementation

[0026] This utility model provides, for example Figure 1 The surgical needle holder shown includes a gripping mechanism 1, and further includes:

[0027] The clamping mechanism 2 is located on the inner wall of one end of the gripping mechanism 1 and is used to clamp and fix the surgical needle.

[0028] To facilitate the clamping of surgical needles of different sizes, such as Figure 1-3 and Figure 5 As shown, the clamping mechanism 2 includes a fixed plate 201. A drive gear 202 is rotatably mounted on one side of the inner wall of the fixed plate 201. An adjusting gear 204 that meshes with the drive gear 202 is rotatably sleeved on the outer top of the fixed plate 201. Three traction plates 205 are rotatably mounted on the top of the adjusting gear 204. Each of the three traction plates 205 has a clamping block 207 for clamping surgical needles at its bottom end away from the adjusting gear 204. The rotation of the drive gear 202 can drive the adjusting gear 204 to rotate. Under the traction of the three traction plates 205, the distance between the three clamping blocks 207 can be adjusted, so that the three clamping blocks 207 can clamp and fix surgical needles of different sizes.

[0029] For easy handling of the device, such as Figure 1-2 and Figure 4 As shown, the gripping mechanism 1 includes a connecting seat 101. An operation panel 102 is fixedly installed on the top of the connecting seat 101. A handle 103 is fixedly installed on the outer wall of one end of the connecting seat 101. A mounting seat 104 is rotatably installed on the end of the connecting seat 101 away from the handle 103. The handle 103 allows medical personnel to grip the device. The mounting seat 104 can be used to install the clamping mechanism 2. The operation panel 102 can control the clamping mechanism 2, so that the clamping mechanism 2 can stably clamp the surgical needle.

[0030] To ensure the stability of the clamping block 207 during adjustment, such as Figure 2 and Figure 4-5 As shown, the bottom inner wall of the mounting base 104 has three limiting grooves 105 that are movably connected to the outer wall of the clamping block 207. The top of the inner wall of the mounting base 104 is movably connected to the fixing plate 201. The inner wall of the fixing plate 201 has three movable grooves 203. Movable seats 206 are fixedly installed on the top of each of the three clamping blocks 207. The outer top of the three movable seats 206 is rotatably connected to the inner wall of the end of the three traction plates 205 away from the adjusting gear plate 204. The outer wall of the three movable seats 206 is movably connected to the inner wall of the three movable grooves 203. The limiting grooves 105 can limit the movement of the clamping block 207, and the movable grooves 203 can limit the movement of the movable seats 206, thereby making the three clamping blocks 207 stable during the adjustment process.

[0031] To ensure the stability of the adjusting gear 204 during rotation, such as Figure 2 and Figure 5 As shown, the top inner wall of the fixed plate 201 has three equally spaced mounting holes 208. The inner walls of the three mounting holes 208 are threaded with fastening bolts 210, and the outer walls of the three fastening bolts 210 are threaded with pressure plates 209. The bottom of the three pressure plates 209 is movably connected to the top of the adjusting gear disc 204. The fastening bolts 210 pass through the pressure plates 209 and are threaded to the inner walls of the adjacent mounting holes 208, so that the pressure plates 209 can press and limit the rotation of the adjusting gear disc 204, so that the adjusting gear disc 204 remains stable during rotation.

[0032] To ensure stable operation of the clamping mechanism 2, such as Figure 2 and Figure 4-5 As shown, the bottom diameter of the fixing plate 201 is the same as the inner diameter of the mounting base 104, the top diameter of the fixing plate 201 is the same as the inner diameter of the adjusting gear 204, and the outer diameter of the adjusting gear 204 is the same as the outer diameter of the mounting base 104. The mounting base 104 can install and fix the clamping mechanism 2, so that the clamping mechanism 2 remains stable during operation, thereby enabling the clamping mechanism 2 to stably clamp surgical needles of different sizes.

[0033] When using the surgical needle, medical staff hold the handle 103 and control the drive gear 202 to rotate via the control panel 102. Through the meshing of the gears, the adjusting gear disc 204 rotates outside the fixed plate 201, thereby moving the three traction plates 205. Under the traction of the traction plates 205, the three movable seats 206 move along the inner walls of the three movable grooves 203, which in turn moves the three clamping blocks 207 along the inner walls of the three limiting grooves 105. The distance between the three clamping blocks 207 can be adjusted, allowing them to handle surgical needles of different sizes. The needle is clamped and fixed, and the fastening bolt 210 passes through the pressure plate 209 and is threaded to the inner wall of the adjacent mounting hole 208, so that the three pressure plates 209 can press and limit the adjusting gear 204, so that the adjusting gear 204 remains stable during rotation. This allows the clamping mechanism 2 to stably clamp and fix surgical needles of different sizes. At the same time, through the rotational connection between the mounting base 104 and the connecting base 101, the tilt angle of the mounting base 104 can be easily adjusted, so that medical staff can easily clamp and use the surgical needles. This embodiment specifically solves the problem that the prior art cannot easily clamp and use surgical needles of different sizes.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A surgical needle holder, comprising a gripping mechanism (1), characterized in that, Also includes: The clamping mechanism (2) is located on the inner wall of one end of the gripping mechanism (1) and is used to clamp and fix the surgical needle. The clamping mechanism (2) includes a fixed plate (201), a drive gear (202) is rotatably mounted on one side of the inner wall of the fixed plate (201), an adjusting gear disc (204) that meshes with the drive gear (202) is rotatably sleeved on the outer side of the top of the fixed plate (201), and three traction plates (205) are rotatably mounted on the top of the adjusting gear disc (204). Each of the three traction plates (205) has a clamping block (207) for clamping the surgical needle at the bottom of the end away from the adjusting gear disc (204).

2. The surgical needle holding device according to claim 1, characterized in that: The gripping mechanism (1) includes a connecting seat (101), an operation panel (102) is fixedly installed on the top of the connecting seat (101), and a handle (103) is fixedly installed on the outer wall of one end of the connecting seat (101).

3. The surgical needle holding device according to claim 2, characterized in that: The connecting seat (101) is rotatably mounted with a mounting seat (104) at the end away from the handle (103). The bottom inner wall of the mounting seat (104) is provided with three limiting grooves (105) that are movably connected to the outer wall of the clamping block (207).

4. The surgical needle holding device according to claim 3, characterized in that: The top of the inner wall of the mounting base (104) is movably connected to the fixing plate (201). The inner wall of the fixing plate (201) is provided with three movable grooves (203), and the top inner wall of the fixing plate (201) is provided with three mounting holes (208) at equal intervals.

5. A surgical needle holder according to claim 4, characterized in that: Each of the three clamping blocks (207) has a movable seat (206) fixedly installed on its top. The outer top of each of the three movable seats (206) is rotatably connected to the inner wall of the end of each of the three traction plates (205) away from the adjusting gear plate (204). The outer wall of each of the three movable seats (206) is movably connected to the inner wall of each of the three movable slots (203).

6. A surgical needle holding device according to claim 4, characterized in that: The inner walls of the three mounting holes (208) are threaded with fastening bolts (210), and the outer walls of the three fastening bolts (210) are threaded with pressure plates (209). The bottom of the three pressure plates (209) is movably connected to the top of the adjusting gear plate (204).

7. A surgical needle holding device according to claim 1, characterized in that: The bottom diameter of the fixing plate (201) is the same as the inner diameter of the mounting base (104), the top diameter of the fixing plate (201) is the same as the inner diameter of the adjusting gear (204), and the outer diameter of the adjusting gear (204) is the same as the outer diameter of the mounting base (104).