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Precise filtering injection syringe

A precision filtration and filter technology, applied in the field of medical equipment, can solve problems such as inconvenient operation, and achieve the effect of simple manufacturing process, beautiful appearance and perfect function

Inactive Publication Date: 2018-04-20
SHANDESHI MEDICAL TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a filter for injection that is externally connected to the syringe by screwing on the market. This filter is not connected to the filter when the drug is drawn, and is connected to the syringe when the drug is injected. Frequent replacement and installation of injection heads and filters during liquid medicine and injection is inconvenient to operate

Method used

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Examples

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Embodiment Construction

[0020] see Figure 1-3 , a precision filter syringe, which includes a syringe 1, a push rod 2 and a piston 3, a filter 4 is installed at the injection end of the syringe 1, and a filter element, a suction channel, a filter injection channel, the suction channel and the filter injection channel are driven to rotate by the switching handle 5 arranged on the filter to communicate with the needle of the syringe.

[0021] In this embodiment, the filter 4 is arranged at the bottom of the syringe 4, the overall structure of the filter 4 is disc-shaped, and the side of the filter 4 is sealed with the inner wall of the syringe 1 In cooperation, the filter 4 is provided with a liquid suction hole 41 and a filter injection hole 42 along the thickness direction, the liquid suction hole 41 directly communicates the liquid suction needle with the inner cavity of the syringe 1, and the filter injection hole 42 The inner cavity of the syringe 1 is connected with the injection needle through ...

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PUM

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Abstract

The invention discloses a precise filtering injection syringe. The precise filtering injection syringe comprises a needle barrel, a push rod and a piston, wherein a filter is mounted at an injection end of the needle barrel; a filter element, a liquid suction channel and a filter injection channel are arranged in the filter; and the liquid suction channel and the filter injection channel are driven to rotate through a switching handle arranged on the filter so as to communicate with a needle head of the syringe. The filter and a syringe body of the precise filtering injection syringe are assembled integrally, and different channels are used for liquid medicine suction and liquid medicine injection, and can be switched through the switching handle. Thus, inconvenience that an external liquid medicine filter is assembled and disassembled frequently is avoided. The precise filtering injection syringe is simple and convenient in manufacturing process and attractive in appearance; adjustment and switching are facilitated; and a liquid medicine filtering function is perfect.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a precision filter syringe. Background technique [0002] Traditional syringes only have injection function, and few have filtering function. There is a filter for injection that is externally connected to the syringe by screwing on the market. This filter is not connected to the filter when the drug is drawn, and is connected to the syringe when the drug is injected. Frequent replacement and installation of injection heads and filters during liquid medicine and injection is inconvenient to operate. Contents of the invention [0003] Therefore, the technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in existing syringes provided with filters, and further provide a precision filter syringe that does not require frequent replacement of injection heads and filters. [0004] To achieve the above object, the present i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/178A61M5/31
CPCA61M5/178A61M5/3129A61M5/3145A61M2205/75
Inventor 刘亚光关雷
Owner SHANDESHI MEDICAL TECH BEIJING
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