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Blood sampling pen capable of preventing mistakenly operated needle unloading after loading

A blood collection pen, misoperation technology, applied in the field of blood collection pens, can solve problems such as inaccurate puncture depth

Active Publication Date: 2020-07-17
STERILANCE MEDICAL SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a blood collection pen that prevents misoperation and unloading of the needle after it is loaded. Inaccurate puncture depth due to needle removal site

Method used

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  • Blood sampling pen capable of preventing mistakenly operated needle unloading after loading
  • Blood sampling pen capable of preventing mistakenly operated needle unloading after loading
  • Blood sampling pen capable of preventing mistakenly operated needle unloading after loading

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] Example: A blood collection pen that prevents misoperation and unloading of the needle after loading

[0060] Such as Figure 1~Figure 16 As shown, the blood collection pen is composed of a pen cap 1, a middle sleeve 2, a shooting rod 6, a needle unloading lever 27, an outer shell 17, a button 23, a firing spring 30, a return spring 29, an inner sleeve 9, an outer sleeve 8 and a needle unloading push handle 22 (See figure 2 ). Wherein, the pen cap 1 , the middle cover 2 and the shell 17 are connected to form the shell of the present invention, and an ejection cavity is arranged in the shell. Both the inner cover 9 and the overcoat 8 are connected to form the tail handle 10 in the present invention (see figure 1 and Figure 12 ).

[0061] The pen cap 1 is a sleeve-type cap on the head of the blood collection pen. figure 1 and figure 2 ). The middle sleeve 2 is the base used for connecting and cooperating with the pen cap 1 at the front of the blood collection p...

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Abstract

The invention relates to a blood sampling pen capable of preventing mistakenly operated needle unloading after loading. The blood sampling pen comprises a shell, a shooting rod and a needle unloadingrod, and is characterized in that an elastic arm specially used for needle unloading protection is designed on the shooting rod, a main trigger part is arranged on the arm of the elastic arm, and thearm end of the elastic arm is used as a bolt. Meanwhile, the main trigger part is provided with an auxiliary trigger part arranged on the shell, and aiming at the bolt, a lock opening is arranged on the needle unloading rod. When the shooting rod moves backwards relative to the shell for loading, the main trigger part is in contact with the auxiliary trigger part and forces the elastic arm to bendand deform, so that the bolt is driven to extend into the lock opening to occupy space, and the shooting rod automatically enters a needle unloading protection state after loading. The designed scheme is novel and reasonable, the technical consideration is unique and ingenious, and the invention solves the problem of needle unloading protection of a blood sampling pen of which a needle can be loaded and unloaded without opening a pen cap, and solves the problem that the puncture depth is not accurate due to a needle unloading part of a blood sampling pen of a rear-mounted puncture depth adjusting mechanism is mistakenly touched.

Description

technical field [0001] The invention relates to a medical blood collection device, in particular to a blood collection pen matched with a disposable blood collection needle. The blood collection pen automatically enters the needle unloading protection state after the shooting rod is loaded, which effectively prevents the misoperation of unloading the needle and touching the unloading site by mistake, resulting in inaccurate puncture depth of blood collection. Background technique [0002] The blood collection pen is a blood collection device used in conjunction with a disposable blood collection needle, wherein the blood collection pen is reusable, and the blood collection needle is only for one-time use in order to avoid cross-infection. The blood collection pen has been developed for decades, and the improvement of the blood collection pen has gone through many stages. At present, the blood collection pen is gradually becoming mature, but in the development process of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/15
CPCA61B5/15A61B5/150007A61B5/15019A61B5/150198A61B5/150206A61B5/150541
Inventor 施国平王祥生张金权
Owner STERILANCE MEDICAL SUZHOU
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