Pressure-adjustable type medical pressure retaining valve

Abstract

The invention provides a pressure-adjustable type medical pressure retaining valve, which solves the technical problem that pressure of existing medical drainage devices and pump infusion devices cannot be regulated in real time. The pressure-adjustable type medical pressure retaining valve comprises an upper cover and a lower cover, wherein a liquid inlet is formed in the upper cover, a liquid outlet is formed in the lower cover, and a driving assembly used for blocking or connecting is arranged in a cavity defined by the upper cover and the lower cover; the lower cover comprises a telescopiclower cover and a regulating sleeve, the telescopic lower cover comprises a cover body part connected with the upper cover and a telescopic barrel part formed by an opening in the middle of the coverbody part through downward extending, and the telescopic barrel part is located in a through hole in the regulating sleeve and can get in and out of the regulating sleeve; a sliding block is arrangedin the telescopic barrel part, and the lower end of the driving assembly extends into a through hole in the sliding block; a partition is arranged in the through hole in the regulating sleeve, and the middle part of the partition is connected upwards with the sliding block; and a liquid through hole is formed in the partition. The pressure-adjustable type medical pressure retaining valve is widely applied to the technical field of medical apparatus and instruments.

Description

technical field [0001] The invention relates to a medical valve, in particular to a pressure-adjustable medical pressure maintaining valve. Background technique [0002] At present, medical drainage devices and pump infusion devices on the market, such as cerebrospinal fluid drainage, pleural effusion drainage, urinary tract drainage, as well as injection pumps, infusion pumps, CT injection pumps, etc., mostly rely on the difference between the intracavity pressure and the atmospheric pressure. Drainage, or infusion with external power from the device. The pressure cannot be adjusted immediately during the drainage and infusion process, and it is impossible to achieve stable pressure, pressure-controlled drainage or pressure-controlled infusion for different patients and different clinical conditions, which brings risks to patients, including but not limited to excessive drainage and insufficient drainage , overpressure infusion, underpressure infusion, etc. Contents of t...

AI Technical Summary

Problems solved by technology

The pressure cannot be adjusted immediately during the drainage and infusion process, and it is impossible to achieve stable pressure, pressure-controlled drainage or pressure-controlled infusion for different patients and different clinical conditions, which brings risks to patients, including but not limited to excessive drainage and insufficient drainage , overpressure infusion, underpressure infusion, etc.

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