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Filter for injection syringe and injection syringe

A syringe and filter technology, which is applied in the field of medical devices, can solve the problems of difficulty in sorting and recycling syringes, and the syringes have no filtering function and cannot be disassembled.

Inactive Publication Date: 2016-12-21
威海美迪森医疗器械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a filter for syringes, aiming to improve the problem that the existing syringes do not have filtering function, and improve the problem that the existing syringe filters and syringes cannot be disassembled
[0004] The present invention also provides a syringe, which aims to improve the problem that the syringe filter and the syringe are not detachable, which leads to the difficulty of sorting and recycling the syringes.

Method used

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  • Filter for injection syringe and injection syringe
  • Filter for injection syringe and injection syringe
  • Filter for injection syringe and injection syringe

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0041] Such as figure 1 As shown, the syringe 100 includes a needle 110 , a barrel 120 and a syringe filter 300 . The opposite ends of the syringe filter 300 are detachably connected to the needle 110 and the syringe 120 respectively.

[0042] Such as figure 1 and figure 2 As shown, the needle 110 is sleeved on the syringe filter 300, the needle 110 is hollow, and the end of the needle 110 away from the syringe filter 300 is provided with a needle tube 111, and the needle tube 111 communicates with the syringe filter 300 through the hollow part of the needle 110.

[0043] The outer wall of the needle 110 is provided with first protrusions 112 , and the number of the first protrusions 112 is two, which are respectively arranged opposite to the outer wall of the end of the needle 110 away from the needle tube 111 . The first protrusion 112 acts as a force application point when the needle 110 is installed on the syringe filter 300 , making the installation operation more con...

no. 2 example

[0065] The syringe filter 400 provided by the embodiment of the present invention has the same realization principle and technical effects as the first embodiment. For a brief description, for the parts not mentioned in this embodiment, you can refer to the corresponding content in the first embodiment. .

[0066]Such as Figure 11 and 12 As shown, the end of the second liquid outlet chamber 421 away from the elastic non-return member 410 is provided with a second filter membrane 440 , and the second filter membrane 440 completely covers the opening of the second liquid outlet chamber 421 away from the elastic non-return member 410 .

[0067] When the liquid medicine is sucked, the liquid inlet 416 is opened, and the liquid enters the liquid inlet chamber 428, enters the liquid inlet hole 422 through the liquid inlet chamber 428, and finally enters the syringe. When the medicinal liquid is pushed out, the medicinal liquid reaches the second filter membrane 440 from the syrin...

no. 3 example

[0071] The syringe filter 500 provided by the embodiment of the present invention has the same realization principle and technical effect as the first embodiment. For a brief description, for the parts not mentioned in this embodiment, you can refer to the corresponding content in the first embodiment. .

[0072] Such as Figure 13-15 As shown, the first filter membrane 530 is arranged at the end of the plurality of liquid inlet holes 522 away from the elastic non-return member 510, and covers the openings of the plurality of liquid inlet holes 522, and the second filter membrane 540 is arranged at the second liquid outlet cavity 521 away from the elastic One end of the non-return member 510 covers the opening of the second liquid outlet cavity 521 , and the first filter membrane 530 and the second filter membrane 540 are integrally formed.

[0073] The advantage of the integral formation of the first filter membrane 530 and the second filter membrane 540 is that the producti...

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Abstract

The invention discloses a filter for an injection syringe. The filter comprises an elastic check part, an isolating part and a shell; the elastic check part is connected with the isolating part, the shell is provided with an inner cavity, the elastic check part and the isolating part are both arranged in the inner cavity, a first check structure with a liquid outlet is arranged at the end, far away from the isolating part, of the elastic check part, the elastic check part is provided with a first liquid outlet cavity of which an opening faces the isolating part, the isolating part is provided with a second liquid outlet cavity which is communicated with the first liquid outlet cavity, the isolating part is provided with multiple liquid inlet holes which are isolated from the second liquid outlet cavity and surround the second liquid outlet cavity, and a first filter membrane is arranged at one end of each liquid inlet hole, or a second filter membrane is arranged at one end of the second liquid outlet cavity. The filter for the injection syringe can filter medicine liquid and is detachably connected with the injection syringe. The invention further provides the injection syringe with the filter for the injection syringe. Due to detachable connection of all the parts, the parts of the injection syringe can be classified and recycled more easily.

Description

technical field [0001] The invention relates to the field of medical appliances, in particular to a filter for a syringe and a syringe. Background technique [0002] At present, most injections 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 liquid, the bottle stopper chips or glass powder will enter the syringe. Traditional syringes do not have a filtering function. When liquid medicine is drawn, these magazines will be drawn into the syringe and injected directly into the patient's body, thereby inducing diseases such as venous inflammation. The existing syringes with filtering function are provided with a filter on the needle or syringe, but the filter and the syringe cannot be disassembled in this way, which makes it difficult to classify and recycle the filter. Contents of the invention [0003] The invention provides a filter for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/31A61M5/178
CPCA61M5/3145A61M5/178A61M2205/19A61M2205/7545
Inventor 金崇熙南莲花金棠
Owner 威海美迪森医疗器械股份有限公司
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