Liquid medicine filter

Abstract

The invention provides a liquid medicine filter. The liquid medicine filter comprises an upper shell body and a lower shell body, wherein a filter membrane is arranged between the upper shell body and the lower shell body; the upper shell body comprises an upper connection pipe, an upper tapered head and an upper cylinder, and the axes of the upper connection pipe, the upper tapered head and the upper cylinder are located on the same straight line; the upper tapered head is a conical-platform-shaped side wall; a small end of the upper tapered head is connected with the upper connection pipe and a large end of the upper tapered head is connected with one end of the upper cylinder; the lower shell body comprises a lower connection pipe, a lower tapered head and a lower cylinder, and the axes of the lower connection pipe, the lower tapered head and the lower cylinder are located on the same straight line; the lower tapered head is a conical-platform-shaped side wall; the large end of the lower tapered head is connected with the lower cylinder and the small end of the lower tapered head is connected with the lower connection pipe; the inner diameter of the lower cylinder is matched with the outer diameter of the upper cylinder; the other end of the upper cylinder is inserted into the lower cylinder; the filter membrane is located at the end part of the other end of the upper cylinder; a medicine feeding hole is formed in the upper tapered head; a sealing gasket is arranged in the medicine feeding hole. The liquid medicine filter has the beneficial effects that the structure is simple, the production cost is low and the medicine feeding hole is formed.

Description

technical field [0001] The invention belongs to the field of medical equipment, in particular to a medical liquid filter provided with a drug feeding hole. Background technique [0002] The liquid medicine filter is composed of a housing and a filter membrane. Made of N66 (nylon), PES (polyethersulfone), MCE (mixed cellulose), PTFE (polytetrafluoroethylene), PVDF (polyvinylidene fluoride) and other materials. It can be a precision chemical liquid filter and an air filter. The filtration rate of the precise liquid medicine filter to filter out particles above 5um in the liquid medicine is not less than 90%. The filtration rate of the air filter to filter out particles above 0.5um in the air is not less than 90%. [0003] In the prior art, the liquid medicine filter is not directly provided with a dosing hole, and needs to be additionally provided with a dosing device, which has technical problems such as complex structure, difficult parts processing, and high production co...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the liquid medicine filter is not directly provided with a dosing hole, and an additional dosing device is required, which has technical problems such as complex structure, difficult parts processing, and high production cost.

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