Contact pressure type disposable hemostix with spring guide structure

A disposable blood collection device technology, which can be used in sensors, medical science, diagnostic recording/measurement, etc. It can solve the problems of unstable release speed, weakened spring ejection force, and unstable spring release direction.

Inactive Publication Date: 2021-04-23
蚌埠冠硕医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing technology still has many defects, such as: after the spring is compressed, the middle part bulges and bends laterally, and is released as a whole under a large elastic tension, so that the spring has problems such as unstable release direction and unstable release speed during the release process. , w...

Method used

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  • Contact pressure type disposable hemostix with spring guide structure
  • Contact pressure type disposable hemostix with spring guide structure
  • Contact pressure type disposable hemostix with spring guide structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0046] Embodiment: There are three through grooves 41 in the guiding cylinder 4, three extending grooves 51 that cooperate with the baffle plate 8, and three adjusting holes 103. The first adjustment hole 1031, the second adjustment hole 1032 and the third adjustment hole 1033, when the rotation adjustment rod 6 rotates so that the insertion rod 14 extends into the first adjustment hole 1031, the extrusion cylinder 5 rotates so that the opening closest to the blood collection cylinder 1 One baffle 8 leaves the ejection spring 7, when the rotation adjustment rod 6 rotates so that the insertion rod 14 extends into the second adjustment hole 1032, the extrusion cylinder 5 rotates so that the two baffles 8 close to the opening of the blood collection cartridge 1 leave the ejection spring 7, When the rotation adjustment rod 6 is rotated so that the insertion rod 14 extends into the third adjustment hole 1033 , the extrusion cylinder 5 is rotated so that the three baffles 8 are all s...

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PUM

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Abstract

The invention discloses a contact pressure type disposable hemostix with a spring guide structure, which comprises a blood sampling barrel, a puncture structure, a guide structure and a contact pressure structure, a plurality of through grooves are sequentially formed in the side wall of a guide barrel in the direction away from an opening of the blood sampling barrel, a baffle movably penetrates through any through groove, an extrusion cylinder is movably arranged on the outer side of the guide cylinder in a sleeving mode, and presses the baffles into the guide cylinder and blocks an ejection spring, and extending grooves matched with the baffle is formed in the side wall of the extrusion cylinder. In use, the contact pressure type disposable hemostix realizes the segmented release of the ejection spring through the arrangement of the baffles, the guide cylinder and the extrusion cylinder, so that the ejection spring is released more uniformly and controllably, the extension length of the ejection spring is controlled by selecting different adjusting holes, and different puncture depths can be adjusted according to personal needs, so that the applicability of the whole device is wider.

Description

technical field [0001] The invention relates to the technical field of blood collection instruments, in particular to a pressure-touch disposable blood collection device with a spring guiding structure. Background technique [0002] The shooting and puncturing function is the primary condition to measure the quality of a blood collection device, and the vibration of the needle tip when it punctures the human skin is one of the important indicators. There are many factors that affect needle tip vibration, such as needle core shooting guide structure, needle core trigger mechanism, spring performance and so on. At present, the most considered in the existing design is to guide the shooting of the needle core, and generally adopt the method of opening a guide chute to guide the shooting movement of the needle core. [0003] In the prior art, the application number is "201710376831.2", a touch-type disposable blood collection device with a spring guiding structure, including a ...

Claims

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Application Information

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IPC IPC(8): A61B5/151
CPCA61B5/150022A61B5/15101A61B5/15113A61B5/15117A61B5/15142
Inventor 沈贵兰
Owner 蚌埠冠硕医疗科技有限公司
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