Fixture

A technology of a fixture and a magnetic field generating device, which is applied in the field of medical devices and can solve problems such as device deformation or damage

Active Publication Date: 2019-05-21
BIOTYX MEDICAL SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to address the problem that the existing transfer fixtures are very easy to cause deformation or d

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0034] Please refer to figure 1 , the present embodiment provides a jig 100 that can be used to transfer magnetic objects, and is especially suitable for positioning and transferring light and small magnetic media that are easily deformed by force. The fixture 100 includes a magnetic field generating device 110, an adjusting device 120 and a limiting device 130, wherein the adjusting device 120 is connected with the magnetic field generating device 110, and the limiting device 130 is directly or indirectly connected with the magnetic field generating device 110; the magnetic field generating device 110 is used for A magnetic field is provided, and the adjustment device 120 is used to adjust the magnetic field generated by the magnetic field generating device 110 at the limit device 130, so that the magnetic medium is adsorbed on the limit device 130 or falls off from the limit device 130, and the limit device is used for Defines where the magnetic media is attracted to the fix...

example 1

[0044] Example 1: The polished length of the coronary stent 200 is L=6mm, the diameter OD=2R=1.2mm, the wall thickness T=0.03mm, the metal surface coverage rate k=20%, and the contour volume is π×R 2 ×L=6.786mm 3 , the actual volume is [L×π×R 2 -L×π×(R-T) 2 ]×k=0.132mm 3 , the ratio of actual volume to contour volume is -k(T / R) 2 +2k(T / R)=0.019. Wherein, the metal surface coverage refers to, in an object having a tubular structure, the ratio of the area covered by metal on the outer surface of the object to the total area of ​​the outer surface of the object.

[0045] The coronary stent 200 can be stored in a centrifuge tube 300 filled with alcohol and placed approximately vertically. When it is necessary to take out the coronary stent 200 vertically from the centrifuge tube 300 and transfer it to another position vertically, firstly, the clamp 100 can be gradually approached above the coronary stent 200 to be transferred, and then the stopper 130 can be placed on the Th...

example 2

[0048] Example 2: The polished length of the coronary stent 200 is L=80mm, the diameter OD=2R=1.6mm, the wall thickness T=0.06mm, the metal surface coverage rate k=30%, and the contour volume is π×R 2 ×L=160.850mm 3 , the actual volume is [L×π×R 2 -L×π×(R-T) 2 ]×k=6.967mm3, the ratio of actual volume to outline volume is -k(T / R) 2 +2k(T / R)=0.043.

[0049] The coronary stent 200 can be stored in a centrifuge tube 300 filled with alcohol and placed approximately vertically. When it is necessary to take out the coronary stent 200 vertically from the centrifuge tube 300 and transfer it to another position for vertical placement, firstly, the clamp 100 can be gradually approached above the coronary stent 200 to be transferred, and then the stop device The circular limiting groove 131 on 130 faces the end of the coronary stent 200 close to the opening of the centrifuge tube 300 . Taking the coronary stent 200 with a weight of 54.34 mg as an example, the material of the limiting...

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Abstract

The invention relates to a fixture. The fixture comprises a magnetic field generating device, an adjusting device and a limiting device, wherein the adjusting device is connected with the magnetic field generating device, and the limiting device is connected with the magnetic field generating device; the magnetic field generating device is used for supplying a magnetic field; and the adjusting device is used for adjusting the magnitude of the magnetic field generated by the magnetic field generating device on the limiting device to enable a magnetic medium to be adsorbed to the limiting deviceor fall off from the limiting device. According to the fixture, the effect that deformation and damage of the magnetic medium are reduced while the magnetic medium is positioned and transferred is achieved, and then the working efficiency and the finished product rate in the production and inspection process are effectively improved and increased respectively.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a clamp. Background technique [0002] In the field of medical devices, there are some light and small magnetic medical devices with relatively precise design, such as iron-based coronary stents, especially thin-walled iron-based coronary stents. During the inspection process, when using traditional transfer fixtures, such as tweezers, hard thin rods and other transfer fixtures, or directly holding instruments for sample transfer, it is often caused by uncontrollable force or uncontrollable displacement of people's hands, which can easily cause The device is deformed or damaged, resulting in low yield. [0003] In addition, during the entire production and inspection process, it is often necessary to place magnetic medical devices such as brackets in different states. For example, when inspecting appearance and size, the bracket needs to be placed horizontally on the...

Claims

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Application Information

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IPC IPC(8): B25J15/06B25J15/00
Inventor 林文娇秦莉张万谦
Owner BIOTYX MEDICAL SHENZHEN CO LTD
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