Tail push type disposable safety blood collection device

A blood collection device, a disposable technology, applied in the fields of sensors, medical science, diagnosis, etc., can solve the problems of not being able to directly recognize the shape, etc., and achieve the effect of highlighting substantive features, good user experience, and significant progress

Active Publication Date: 2019-12-27
STERILANCE MEDICAL SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned tail-pressing blood collection device has a mature basic structure, a reliable ejection mechanism, and distinctive structural features, there are still some deficiencies in terms of safety in use: First, because the tail cap completely rebounds after being pressed, it cannot be directly identified from the appearance The form before and after use; second, even if the blood collection device is used, if a needle is used to push the needle hole from the front end, the needle core can be loaded and used again

Method used

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  • Tail push type disposable safety blood collection device
  • Tail push type disposable safety blood collection device
  • Tail push type disposable safety blood collection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0056] Example: a tail-pressing disposable safety blood collection device

[0057] The blood collection device is composed of a shell 1, a needle core 2, a twist cap 11, a spring 3 and a tail cap 4 (see figure 1 and figure 2 ).

[0058] The shell 1 forms an ejection chamber, and the front end of the ejection chamber is provided with a pinhole 9 (see image 3 and Figure 4 ), there is a gap 20 in the pinhole 9 (see Figure 4 , Figure 12 and Figure 14 ). The needle core 2 is located in the ejection cavity, and the shell 1 is provided with two elastic arms 5 extending inwards (see image 3 , Figure 4 and Figure 11 ), the elastic arm 5 is provided with a hook 6 for locking the needle core 2 (see Figure 11 ), the needle core 2 is provided with an engaging surface 8 corresponding to the hook 6 (see Figure 5 , Figure 6 and Figure 11 ). In the ready-to-fire state, the front end of the spring 3 presses against the needle core 2, and the engagement surface 8 of th...

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Abstract

A tail push-type disposable safety blood collection device, including a shell, a needle core, a spring and a tail cover, the shell is provided with an elastic arm for locking the needle core, and the feature is that an active lock for locking is provided on the tail cover The passive locking part for locking is arranged correspondingly on the elastic arm; the position and matching time of the active locking part and the passive locking part are associated with the positions and matching time of the active unlocking part and the passive unlocking part; When in use, press the tail cap to first force the needle core to unlock and launch a puncture, then the tail cap and the elastic arm enter the lock hook state and cannot be used again. In this solution, the rear end cover is permanently locked on the elastic arm of the housing, which not only ensures the safety of one-time use, but also can be intuitively recognized from the appearance.

Description

technical field [0001] The invention relates to the field of medical blood collection instruments, in particular to a tail-pressing type disposable safety blood collection device. The blood collection device has its own ejection mechanism, which not only has an obvious mark after use, but also cannot be used again, thus ensuring the safety of the blood collection device at one time. Background technique [0002] Among medical blood collection devices, disposable blood collection devices are popular among medical staff and patients for their small size, safe use, and convenient operation. They are currently widely used in various medical institutions and diabetic patients. This kind of blood collection device has its own ejection mechanism, compact structure, and one-time use as a whole, which is safe and convenient, so it has strong market development potential. [0003] Chinese patent CN107007289A discloses an application for an invention patent entitled "Back pressure typ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/151
CPCA61B5/150893A61B5/15113A61B5/15142A61B5/150022A61B5/15019A61B5/150412A61B5/150549A61B5/150916A61B5/15117A61B5/1513A61B5/15144A61B2560/04
Inventor 施国平安东尼·斯科特·霍斯特曼
Owner STERILANCE MEDICAL SUZHOU
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