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A two-way filter syringe

A two-way filter and syringe technology, applied in the field of syringes, can solve the problems of bacteria or virus contamination, inconvenient clinical operation, etc., and achieve the effects of low cost, avoiding infection of bacteria and viruses and cross-contamination, and convenient operation

Active Publication Date: 2015-12-02
SHANDONG WEIGAO GROUP MEDICAL POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the liquid inlet channel and the liquid outlet channel of the injection needle are the same channel, the injection needle needs to be replaced again after filtration, but there is a risk of contamination by bacteria or viruses during the replacement process of the filter needle and the injection needle, and the clinical operation is also inconvenient

Method used

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  • A two-way filter syringe
  • A two-way filter syringe
  • A two-way filter syringe

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Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] from Figure 1-Figure 4 It can be seen from the figure that a two-way filtering syringe of the present invention includes a syringe 1 and an injection needle 3, the injection needle 3 is composed of a needle tube 4 and a needle seat 5, the needle tube 4 is installed on the front end of the upper needle seat 6, and the lower needle seat The rear end of 7 is connected to the cone head 2 of the syringe 1, the front end of the lower needle seat 7 is combined with the upper needle seat 6 to form a suction inlet 8 and an injection outlet 9, and a check valve 10 is installed on the lower needle seat 7. The valve 10 is opened in the suction direction of the suction inlet and the injection direction of the injection outlet, and filters are installed on the suction inlet 8 and the injection outlet 9 .

[0018] Such as figure 2 , image 3 and Figure 4 As shown, the m...

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Abstract

The invention discloses a two-way filtration syringe comprising a syringe body and a filtration needle. The needle is composed of a needle tube and a needle holder. The needle tube is mounted at the front end of an upper needle holder, the rear end of a lower needle holder is connected to a tapered head of the syringe body, the front end of the lower needle holder is connected with the upper needle holder to form a suction inlet and an injection outlet, the lower needle holder is provided with a check valve, the check valve opens in a suctioning direction of the suction inlet and an injecting direction of the injection outlet, and both the suction inlet and the injection outlet are provided with filters. The two-way filtration syringe has such advantages that the structure is simple, operation is facilitated, the syringe is safe and reliable, cost is low, the syringe is disposable and cross infection can be effectively avoided.

Description

technical field [0001] The invention relates to a syringe, in particular to a two-way filtering syringe. Background technique [0002] As we all know, most of the injections currently used clinically are packaged in glass bottles. When the needle of the syringe is used to pierce the rubber stopper or cut the glass bottle with a grinding wheel to extract the medicinal solution, the bottle stopper chips or glass powder will enter the injection solution. Traditional syringes do not have a filter function. When liquid medicine is drawn, these impurities will be drawn into the syringe and injected directly into the patient, thereby inducing diseases such as venous inflammation. Chinese invention patent application CN102600535A discloses an injection needle with a precision filter, including a needle tube and a needle seat with an inner through hole, and the inner through hole of the needle seat includes an upper part with a smaller aperture, a lower part with a larger aperture, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/178
CPCA61M5/3145A61M2005/3128
Inventor 丁文学李君夏欣瑞蔡诗荣袁志远李娜尹立刚
Owner SHANDONG WEIGAO GROUP MEDICAL POLYMER
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