A continuous slow liquid supply device and its installation method

Abstract

The invention provides a novel continuous slow liquid feeding apparatus and an installation and application method thereof. The apparatus comprises a spiral joint, a container with an interface, an end cover, a liquid strop film, a liquid storage capsule and one or more layers of hollow nanometer membranes, the liquid strop film is installed in a float, the one or more layers of hollow nanometer membranes pass through intermediate holes of the float and the liquid strop film and are adhered, sealed and fixed to form one body, the float, the liquid strop film and the one or more layers of hollow nanometer membranes are placed in the intermediate hole of the spiral joint together, the end cover and the end surface of the projecting cylinder of the spiral joint are bonded to form one body, the liquid storage capsule is sleeved outside the end surface and the projecting cylinder of the spiral joint, the open end of the liquid storage capsule is tightly fixed to the spiral joint, and the spiral joint and the container with the interface are welded to form one body. According to the invention, long-time continuous positive pressure can be realized, the positive pressure state is maintained for long time through liquid feeding at a time, the liquid feeding can be carried out for multiple times, blood entering the conduit of a detaining needle is enabled to flow slowly, the mount of the blood entering the conduit is also reduced, and thus thrombus obstruction is prevented.

Description

technical field [0001] The invention belongs to the field of disposable medical devices, in particular to a novel continuous and slow liquid supply device in an infusion set and its installation and use method. Background technique [0002] At present, indwelling needles are widely used clinically. Compared with traditional venous needles, their main application value is to avoid the pain and safety hazards of multiple punctures for patients. While indwelling needles are recognized by doctors and patients, there are also other problems and risks in indwelling needles, among which thrombus blockage is the main problem. In order to prevent thrombus from blocking the tube, the nurse flushes the tube with heparin solution every 6-8 hours to make the tube unobstructed again, and then uses a positive pressure device to seal the tube with positive pressure, and the positive pressure tube can only provide instantaneous Positive pressure cannot prevent the occurrence of thrombus blo...

AI Technical Summary

Problems solved by technology

In order to prevent thrombus from blocking the tube, the nurse flushes the tube with heparin solution every 6-8 hours to make the tube unobstructed again, and then uses a positive pressure device to seal the tube with positive pressure, and the positive pressure tube can only provide instantaneous Positive pressure cannot prevent the occurrence of thrombus blockage for a long time

Regular flushing and sealing of tubes is a preventive measure, which cannot effectively prevent thrombus formation, and the probability of tube blockage is still high

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