Liposuction needle processing tool

CN224731301UActive Publication Date: 2026-09-08SUZHOU ZERO POINT PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202522162899.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2026-09-08
Estimated Expiration
2035-10-13

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种抽脂针加工工装,以解决上述背景技术提出抽脂针细钢管检测时人工对位精度低,外径内径检测分离需转运,插塞力度难控,易划伤、误判,效率低的问题

Benefits of technology

1.本申请抽脂针加工工装,通过联动组件的巧妙设计,当检测定位件带动内外径检测仪器下移时,可同步驱动抽脂针递送组件移动并完成中心对位,确保内外径检测仪器始终位于抽脂针正上方,解决了传统人工检测中对位偏差导致的测量误差问题,大幅提升了检测数据的准确性与一致性。

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Abstract

The utility model relates to medical instrument technical field discloses a kind of liposuction needle processing tool, including the detection workbench for processing detection to liposuction needle, detection workbench is equipped with liposuction needle delivery assembly, internal and external diameter detection instrument, detection positioning piece and the linkage assembly for making detection positioning piece and liposuction needle delivery assembly carry out synchronous center positioning;Detection positioning piece includes the support vertical plate in the detection workbench one side top, top plate is connected in support vertical plate front side bottom, top plate is equipped with sliding plate directly below, symmetrically sliding through the guide rod in the inside of sliding plate both sides, the bottom of guide rod is connected with the top of detection workbench, and detection rod is connected in the inside of sliding plate through, internal and external diameter detection instrument is fixedly installed in the bottom end surface of detection rod, and synchronous lifting along vertical direction with sliding plate.This application liposuction needle processing tool realizes detection positioning piece and delivery assembly synchronous center alignment by linkage assembly, and detection efficiency is high.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a tooling for processing liposuction needles. Background Technology

[0002] As the core medical device for liposuction, the liposuction cane is used to break down and extract excess subcutaneous fat tissue, thereby achieving the clinical purpose of local shaping and improving fat accumulation. Therefore, its processing precision and cleanliness directly determine the safety and surgical effect.

[0003] The specific process for liposuction needle manufacturing is as follows: a thin steel tube is precisely fixed in a special slot of a grinding machine, and a beveled groove for fat entry is ground on the side of the end of the steel tube by a grinding wheel. After the core structure of the needle body is manufactured, it needs to enter a strict quality inspection process. First, the outer diameter measuring instrument is used to measure the accuracy of the outer wall size of the needle tube, and then the inner diameter is verified to meet the standard by a plug-type testing tool. Only after the size is qualified can it be sent to an automatic assembly machine, where the needle plug is fixed on the wheel pin, and the needle shaft is precisely inserted into the needle plug, thus completing the assembly of the liposuction needle.

[0004] However, the current quality inspection process has become a key bottleneck restricting the efficiency and quality stability of liposuction needle mass production, specifically in the following aspects: First, insufficient accuracy of manual alignment. During outer diameter inspection, quality inspectors must manually align the measuring instrument with the inspection points on the outer wall of each needle, relying entirely on manual judgment of the alignment between the needle and the measuring instrument. This is prone to deviation due to visual bias or hand tremors, especially in judging whether the needle has defects such as tilting or bending. Second, lack of synchronization in inspection. Outer diameter and inner diameter inspection are two independent processes, requiring manual transfer of the needle between two workstations. This increases production flow time, and because the needle's posture is prone to shifting during transfer, realignment is required for subsequent inspections, further reducing efficiency. Therefore, we have proposed a liposuction needle processing fixture to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tooling for processing liposuction needles, so as to solve the problems mentioned in the background art, such as low manual alignment accuracy during the inspection of thin steel tubes for liposuction needles, the need for transportation for the separation of outer and inner diameter inspection, difficulty in controlling the insertion force, easy scratching, misjudgment, and low efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A liposuction needle processing fixture includes a testing worktable for processing and testing liposuction needles. The testing worktable is provided with a liposuction needle delivery component, an inner and outer diameter measuring instrument, a testing positioning component, and a linkage component for synchronously centering the testing positioning component and the liposuction needle delivery component. The detection positioning component includes a support plate located on the top of one side of the detection workbench. A top plate is connected to the bottom front side of the support plate. A sliding plate is located directly below the top plate. Guide rods slide symmetrically through the inside of both sides of the sliding plate. The bottom of the guide rods is connected to the top of the detection workbench. A detection rod is connected through the inside of the sliding plate. An electric lifting rod is connected to the top of the detection rod. The top of the electric lifting rod is connected to the bottom of the top plate. The inner and outer diameter detection instrument is fixedly installed on the bottom end face of the detection rod and moves up and down synchronously with the sliding plate in the vertical direction.

[0007] Preferably, the liposuction needle delivery assembly includes symmetrical sliding guide rails located on the top of the detection worktable below the detection rod. A slider is slidably connected to the sliding guide rails. The tops of the two sliding guide rails are connected by a fixing frame. The fixing frame is provided with a liposuction needle insertion seat, and the liposuction needle is vertically inserted into the liposuction needle insertion seat.

[0008] Preferably, a horizontal groove is provided on one side of the outer wall of the fixing frame, a sliding plate is fixedly provided inside the groove, and a sliding shaft is connected to the outer wall of the sliding plate.

[0009] Preferably, the linkage assembly includes a torsion spring shaft, a drive rod, and a linkage rod. The linkage rod has an L-shaped structure, with a sliding groove extending through one side. The middle of the linkage rod is rotatably connected to the torsion spring shaft. The bottom of the torsion spring shaft is connected to the top of the detection workbench via a fixed seat. A rotating wheel is rotatably connected to the outer wall of the end of the linkage rod away from the sliding groove. The drive rod has an L-shaped structure, with its top connected to the sliding plate and its bottom movably abutting against the rotating wheel.

[0010] Preferably, the sliding shaft slides through the interior of the sliding groove.

[0011] Preferably, the inner and outer diameter measuring instruments and the electric lifting rod are electrically connected to the processing and testing control equipment via wires.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The liposuction needle processing fixture of this application, through the ingenious design of the linkage component, can synchronously drive the liposuction needle delivery component to move and complete the center alignment when the detection positioning component moves the inner and outer diameter detection instrument downward, ensuring that the inner and outer diameter detection instrument is always located directly above the liposuction needle, solving the measurement error problem caused by alignment deviation in traditional manual detection, and greatly improving the accuracy and consistency of the detection data.

[0013] 2. With the help of the inner and outer diameter measuring instruments at the bottom of the measuring rod, the inner and outer diameters of the liposuction needle can be measured simultaneously after a single positioning, eliminating the conversion and transfer time of the two processes in traditional manual testing, significantly shortening the testing cycle of a single liposuction needle, and meeting the high-efficiency requirements of industrial mass production.

[0014] 3. The entire process is automated through mechanical structure and electric control, which reduces product damage caused by improper human operation and effectively improves the pass rate of liposuction needles.

[0015] 4. The automated detection and positioning process reduces the number of manual steps, lowers the workload of quality inspectors, and avoids the impact of experience differences on the results in manual detection, making the detection process more standardized and regulated. Attached Figure Description

[0016] Figure 1 This is an overall axonometric view of the present invention; Figure 2 This is a schematic diagram of the detection and positioning component of this utility model; Figure 3 This is a schematic diagram of the liposuction needle delivery assembly of this utility model; Figure 4 For the present utility model Figure 3 Enlarged view of area A in the middle.

[0017] In the diagram: 1. Workbench; 2. Liposuction needle delivery assembly; 21. Sliding guide rail; 22. Slider; 23. Fixing frame; 231. Slide groove; 232. Slide plate; 233. Sliding shaft; 24. Liposuction needle insertion seat; 4. Detection and positioning component; 41. Support plate; 42. Sliding plate; 43. Guide rod; 44. Electric lifting rod; 45. Top plate; 46. Detection rod; 3. Linkage assembly; 31. Torsion spring shaft; 32. Drive rod; 33. Linkage rod; 331. Sliding groove; 332. Rotating wheel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 and Figure 2As shown, a liposuction needle processing fixture includes a testing workbench 1 for processing and testing liposuction needles. The testing workbench 1 is equipped with a liposuction needle delivery assembly 2, an inner and outer diameter measuring instrument, a testing positioning component 4, and a linkage assembly 3 for synchronously centering the testing positioning component 4 and the liposuction needle delivery assembly 2. The linkage assembly 3 drives the liposuction needle delivery assembly 2 and the testing positioning component 4 to perform center positioning testing. The testing positioning component 4 includes a support plate 41 located at the top of one side of the testing workbench 1, providing stable support for the entire positioning structure. A top plate 45 is connected to the bottom front side of the support plate 41, forming a top support platform. A sliding plate is located directly below the top plate 45. The sliding plate 42 has guide rods 43 that slide symmetrically through its interior on both sides. The bottom of the guide rods 43 is connected to the top of the testing workbench 1, ensuring that the sliding plate 42 can only rise and fall stably in the vertical direction and avoid deviation. A testing rod 46 is connected through the interior of the sliding plate 42. An electric lifting rod 44 is connected to the top of the testing rod 46. The top of the electric lifting rod 44 is connected to the bottom of the top plate 45, which can drive the testing rod 46 to rise and fall vertically synchronously with the sliding plate 42. The inner and outer diameter measuring instrument is fixedly installed on the bottom end face of the testing rod 46 and rises and falls synchronously with the sliding plate 42 in the vertical direction. The inner and outer diameter measuring instrument can simultaneously collect the outer diameter and inner diameter data of the liposuction needle, improving the testing efficiency.

[0020] Please see Figure 1 and Figure 3 As shown, the liposuction needle delivery assembly 2 includes a symmetrical sliding guide rail 21 located on the top of the detection workbench 1 below the detection rod 46, providing a horizontal moving track for the delivery assembly. A slider 22 is slidably connected to the sliding guide rail 21, which can slide smoothly along the length of the guide rail. The tops of the two sliding guide rails 21 are connected by a fixing frame 23 to form a stable load-bearing frame. The fixing frame 23 is provided with a liposuction needle insertion seat 24, which has a positioning hole adapted to the liposuction needle. The liposuction needle can be inserted vertically inside to ensure the stability of the needle body posture and avoid shaking during detection. The liposuction needle is vertically inserted into the liposuction needle insertion seat 24.

[0021] Please see Figure 1 and Figure 4As shown, the linkage assembly 3 includes a torsion spring shaft 31, a drive rod 32, and a linkage rod 33. The torsion spring shaft 31 is vertically fixed to the top of the testing workbench 1 via a fixed seat, and a torsion spring is sleeved on its outer periphery, providing an automatic reset function. The linkage rod 33 has an L-shaped structure, with a sliding groove 331 extending through one side. The middle of the linkage rod 33 is rotatably connected to the torsion spring shaft 31, and the bottom of the torsion spring shaft 31 is connected to the top of the testing workbench 1 via a fixed seat. A rotating wheel 332 is rotatably connected to the outer wall of the end of the linkage rod 33 away from the sliding groove 331. The drive rod 32 has an L-shaped structure, with its top connected to the sliding plate 42 and its bottom in movable contact with the rotating wheel 332. The sliding shaft 233 slides through the interior of the sliding groove 331. The linkage rod 33 has an L-shaped structure, with its middle part rotatably connected to the torsion spring shaft 31 and able to rotate around the torsion spring shaft 31; a sliding groove 331 is provided through one side of the linkage rod 33, and a rotating wheel 332 is rotatably connected to the outer wall of the other side; the drive rod 32 has an L-shaped structure, with its top fixedly connected to the side wall of the sliding plate 42 and its bottom movably abutting against the rotating wheel 332, and can synchronously push the rotating wheel 332 as the sliding plate 42 rises and falls. Coordination relationship: A horizontal groove 231 is provided on one side of the outer wall of the fixing frame 23 of the liposuction needle delivery component 2. A sliding plate 232 is fixed in the groove 231. The sliding shaft 233 connected to the outer wall of the sliding plate 232 slides through the sliding groove 331 of the linkage rod 33, realizing the power transmission of the rotation of the linkage rod 33 and the movement of the delivery component.

[0022] The internal and external diameter measuring instruments and the electric lifting rod 44 are electrically connected to the processing and testing control equipment via wires, enabling precise control of the lifting stroke and automatic acquisition and analysis of test data without manual intervention.

[0023] Workflow: During loading, the liposuction needle to be tested is vertically inserted into the positioning hole of the liposuction needle insertion seat 24 to ensure needle stability; the external control device is activated, and the electric lifting rod 44 is started through the processing and testing control device. The electric lifting rod 44 extends and pushes the testing rod 46 and the sliding plate 42 to move vertically downward along the guide rod 43; when the sliding plate 42 moves down, it drives the drive rod 32 to move down synchronously. The bottom of the drive rod 32 abuts against the rotating wheel 332 and pushes it, so that the linkage rod 33 rotates around the torsion spring shaft 31 towards the testing rod 46. During the rotation of the linkage rod 33, the sliding groove 331 drives the fixing frame 23 through the sliding shaft 233, so that the fixing frame 23 moves along the sliding guide rail 21 directly below the testing rod 46 through the slider 22. When the electric lifting rod 44 descends to the set stroke, the sliding plate 42 stops moving. At this time, the liposuction needle delivery assembly 2 moves exactly below the detection rod 46, and the inner and outer diameter detection instrument is located directly above the top of the liposuction needle, achieving synchronous center positioning of the detection instrument and the liposuction needle. Subsequently, the inner and outer diameter detection instrument is activated to synchronously collect the inner and outer diameter data of the liposuction needle and transmit the data to the processing and testing control equipment for analysis and judgment. After the test is completed, the electric lifting rod 44 retracts, causing the sliding plate 42 and the drive rod 32 to move upward. The torsion spring shaft 31 drives the linkage rod 33 to reset under the action of the torsion spring, and then pulls the fixing frame 23 back to the initial position through the sliding shaft 233. The staff can then take out the liposuction needle that has been tested.

[0024] The linkage component 3 itself uses mechanical transmission via drive rod 32 - rotating wheel 332 - linkage rod 33 - sliding shaft 233 to convert the vertical lifting of the detection positioning component 4 into the horizontal movement of the liposuction needle delivery component 2, so as to achieve synchronous alignment of the two. At the same time, guide rod 43 restricts the sliding plate 42 to move only vertically, and sliding guide rail 21 restricts the fixing frame 23 to move only horizontally, so as to avoid deviation. Completely replaces manual alignment, eliminating visual bias and hand tremors that cause detection point offset, ensuring that the internal and external diameter detection instrument is always aligned with the center of the liposuction needle, and improving the accuracy of identifying defects such as needle tilting and bending.

[0025] Furthermore, the internal and external diameter testing instruments are integrated at the bottom of the testing rod 46, enabling simultaneous testing of internal and external diameters at the same workstation; the linkage component 3 achieves one-time drive and synchronous positioning, eliminating the need for manual transfer of the needle tube. Furthermore, the entire process is automated via an electric lifting rod 44 and processing and testing control equipment, eliminating the need for manual handheld measuring instruments or insertion tools. The liposuction needle is vertically inserted into the liposuction needle insertion seat 24, with no manual contact during transport. This avoids scratches on the inner wall caused by improper manual insertion force, as well as scratches on the outer wall and end deformation caused by collisions during transport, thus improving the product qualification rate and reducing the cost of defective products.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liposuction needle processing fixture, comprising a testing workbench (1) for processing and testing liposuction needles, characterized in that: The testing workbench (1) is equipped with a liposuction needle delivery assembly (2), an inner and outer diameter testing instrument, a testing positioning component (4), and a linkage component (3) for synchronously centering the testing positioning component (4) and the liposuction needle delivery assembly (2). The detection positioning component (4) includes a support plate (41) located on the top of one side of the detection workbench (1). A top plate (45) is connected to the bottom front side of the support plate (41). A sliding plate (42) is provided directly below the top plate (45). Guide rods (43) slide symmetrically through the inside of both sides of the sliding plate (42). The bottom of the guide rods (43) is connected to the top of the detection workbench (1). A detection rod (46) is connected through the inside of the sliding plate (42). An electric lifting rod (44) is connected to the top of the detection rod (46). The top of the electric lifting rod (44) is connected to the bottom of the top plate (45). The inner and outer diameter detection instrument is fixedly installed on the bottom end face of the detection rod (46) and moves up and down synchronously with the sliding plate (42) in the vertical direction.

2. The liposuction needle processing fixture according to claim 1, characterized in that: The liposuction needle delivery assembly (2) includes a sliding guide rail (21) with a symmetrical structure located on the top of the detection workbench (1) below the detection rod (46). A slider (22) is slidably connected on the sliding guide rail (21). The tops of the two sliding guide rails (21) are connected by a fixing frame (23). The fixing frame (23) is provided with a liposuction needle insertion seat (24), and the liposuction needle is vertically inserted into the liposuction needle insertion seat (24).

3. The liposuction needle processing fixture according to claim 2, characterized in that: A horizontal groove (231) is provided on one side of the outer wall of the fixed frame (23), and a sliding plate (232) is fixedly provided inside the groove (231). A sliding shaft (233) is connected to the outer wall of the sliding plate (232).

4. The liposuction needle processing fixture according to claim 3, characterized in that: The linkage assembly (3) includes a torsion spring shaft (31), a drive rod (32), and a linkage rod (33). The linkage rod (33) has an L-shaped structure. A sliding groove (331) is provided through one side of the linkage rod (33). The middle part of the linkage rod (33) is rotatably connected to the torsion spring shaft (31). The bottom of the torsion spring shaft (31) is connected to the top of the detection workbench (1) through a fixed seat. A rotating wheel (332) is rotatably connected to the outer wall of the end of the linkage rod (33) away from the sliding groove (331). The drive rod (32) has an L-shaped structure. The top of the drive rod (32) is connected to the sliding plate (42). The bottom of the drive rod (32) is in movable contact with the rotating wheel (332).

5. The liposuction needle processing fixture according to claim 4, characterized in that: The sliding shaft (233) slides through the inside of the sliding groove (331).

6. The liposuction needle processing fixture according to claim 1, characterized in that: The inner and outer diameter measuring instruments and the electric lifting rod (44) are electrically connected to the processing and testing control equipment via wires.