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Needle type syringe with function of accurately filtering dissolved drug

A precision filter and syringe technology, applied in the field of medical devices, can solve problems such as lack of filter function and physical injury of patients, and achieve the effect of simple structure, convenient operation and injury prevention

Inactive Publication Date: 2015-04-29
ANHUI JIANGNAN MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that the ordinary syringe in the prior art does not have the filtering function, which causes the particles in the liquid medicine to cause harm to the patient's body, and provides a syringe that can effectively filter the particles in the liquid medicine and prevent it from causing harm to the body of the patient. Needle precision filter dissolving syringe

Method used

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  • Needle type syringe with function of accurately filtering dissolved drug
  • Needle type syringe with function of accurately filtering dissolved drug
  • Needle type syringe with function of accurately filtering dissolved drug

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 and figure 2 , a needle-type precision filter drug-dissolving syringe proposed in this embodiment includes a push rod 110, a first drug-dissolving tube 120, a drug-dissolving cavity 130, a second drug-dissolving tube 140, and an injection needle 150; the push rod 110 Movably installed in the first drug dissolving tube 120, the first drug dissolving tube 120 communicates with the drug dissolving cavity 130; the second drug dissolving tube 140 is provided with a main channel 141 and a secondary Channel 142; the first port of the main channel 141 communicates with the drug-dissolving cavity 130, and its second port communicates with the injection needle 150; the first port of the secondary channel 142 communicates with the drug-dissolving cavity 130, Its second port merges with the main channel 141 .

[0024] The needle-type precision filter dissolving drug injector also includes a one-way valve, and the one-way valve includes a main one-way valve plate 161...

Embodiment 2

[0036] see image 3 , this embodiment proposes another needle-type precision filter drug-dissolving syringe, which differs from the needle-type precision filter drug-dissolving syringe in the above-mentioned embodiment 1 only in that the first drug-dissolving syringe in embodiment 2 is opposite to that of embodiment 1. Tube 120 made another design, formed as image 3 The first drug dissolving tube 220 is shown. In the first embodiment, the first drug-dissolving tube 120 and the drug-dissolving cavity 130 are preferably integrally formed; while in the second embodiment, the first drug-dissolving tube 220 and the drug-dissolving cavity 230 are a detachable combination, further Furthermore, the first drug dissolving tube 220 can also be used as a syringe barrel of a common syringe in the prior art, and it can be installed on the drug dissolving cavity 230 to filter the drug solution when extracting and injecting the drug solution.

[0037] Specifically, the needle-type precisio...

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Abstract

The invention relates to a needle type syringe with a function of accurately filtering dissolved drug. The needle type syringe with the function of accurately filtering the dissolved drug comprises a push rod, a first dissolved drug tube, a dissolved drug cavity, a second dissolved drug tube and an injection needle, wherein the push rod is movably installed in the first dissolved drug tube, and the first dissolved drug tube is communicated with the dissolved drug cavity; a main channel and an auxiliary channel are arranged inside the second dissolved drug tube; the first end of the main channel is communicated with the dissolved drug cavity, the second end of the main channel is communicated with the injection needle, the first end of the auxiliary channel is communicated with the dissolved drug cavity, and the second end of the auxiliary channel intersects with the main channel. The needle type syringe with the function of accurately filtering the dissolved drug further comprises a main one-way valve plate and an auxiliary one-way valve plate, wherein the main one-way valve plate is installed at the first end of the main channel, the auxiliary one-way valve plate is installed at the second end of the auxiliary channel, and the main one-way valve plate and the auxiliary one-way valve plate are opposite to each other relative to the opening direction of the main channel; an accurate filter film is arranged in the dissolved drug cavity, and the space, located between the first end of the main channel and the first end of the auxiliary channel, of the interior of the dissolved drug cavity is divided by the accurate filter film. The needle type syringe with the function of accurately filtering the dissolved drug can filter drug liquid, and the phenomenon that particles cause damage to the body of a patient is avoided.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a needle-type precision filter drug-dissolving syringe capable of filtering drug liquid. Background technique [0002] At present, most of the medicines used clinically are packaged in glass bottles. When the rubber stopper of the glass bottle is pierced with the needle of a syringe or the glass bottle is cut with a grinding wheel to extract the medicine, particles such as bottle stopper chips or glass powder are easily mixed into the medicine; In addition, due to improper artificial preservation or misoperation, it is also easy to cause insoluble particles in the liquid medicine. And because ordinary syringes do not have the filtering function, these particles will be injected into the patient's body together with the liquid medicine, causing various injuries to the patient's body. In mild cases, it may induce venous inflammation and other diseases, and in severe cases...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J1/20A61M5/178A61M5/31
Inventor 邢维启
Owner ANHUI JIANGNAN MEDICAL DEVICES CO LTD
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