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Connecting device for medical purposes

A technology for connecting devices and medical devices, applied in the field of medical devices, can solve the problems of high processing technology requirements, high manufacturing costs, complex structures, etc.

Active Publication Date: 2010-07-28
WEIHAI JIERUI MEDICAL PRODUCTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned prior art effectively eliminates liquid backflow and avoids blood clogging or coagulation in the catheter, but its structure is complicated, its manufacturing cost is high, and it requires high processing technology

Method used

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  • Connecting device for medical purposes
  • Connecting device for medical purposes
  • Connecting device for medical purposes

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] Depend on figure 1 , figure 2 and image 3 It can be seen that the medical connecting device of the present invention is composed of three parts: an upper housing 1 , an elastic valve core 2 and a lower housing 3 . The upper casing 1 has an open upstream end and a downstream end, the inner hole of the upper casing 1 is a variable diameter, the upper part is a small upstream opening 12, and the lower part is a large chamber 11, and the upstream end of the opening is used to communicate with Upstream medical device connections. One end of the lower housing 3 is sealed and fixed to the downstream end of the upper housing 1 , and the upper housing 1 and the lower housing 3 form a complete connector housing. The other end of the lower casing 3 is a screw joint 31 for connecting with downstream medical devices. The materials used for the upper casing 1 and the lower casing 3 are medical plastic materials.

[0016] The feature of the present invention is: the elastic val...

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Abstract

The invention relates to a medical connecting device which consists of an upper shell, a lower shell and an elastic valve core. The upper shell is equipped with an upstream end and a downstream end which have openings; a cavity is positioned between the upstream end and the downstream end. One end of the lower shell is hermetically connected and fixed with the downstream end of the upper shell, and the other end is a spiral joint. The elastic valve core is arranged in the cavity of the upper shell and the opening of the upstream end, one end of the elastic valve core is fixedly connected withthe lower shell, and the other end is controllably sealed with the opening of the upstream end of the upper shell. The elastic valve core controls flow of liquid in the cavity by changing self-volume. The connecting device has the advantages of reasonable structure, delicate design and convenient use, and that the device can be connected with a plurality of infusion apparatuses such as an injector, an infusion set, an indwelling needle and an in vivo duct, etc., to treat patients. No needle is required by the connecting device, thus injuries and accidental infection of medical staff can be avoided in the course of transfusion operation and that liquid flows to the downstream medical apparatus in the normal direction by the connecting device is ensured.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical connecting device. When it is connected between one medical device and another medical device, it facilitates the communication of liquid between them, and when disconnecting the upstream medical device, it ensures the positive flow of liquid through the connector in the direction of the outlet and downstream medical device. Background technique [0002] We know that when some fluid administration treatments are performed in the hospital, connectors or valves are usually used to control the flow of fluid from one medical device (such as an infusion set) to another medical device (such as an indwelling needle). Through the connectors or valves arranged in this way, the fluid source or other pipelines are connected to it, so that the liquid can flow therebetween, and it is used to control the input of medical fluid from the fluid source to the patient. When the fluid source is removed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M39/10
CPCA61M39/10
Inventor 苗军胜丛良滋于尚在张德海刘树安胡云涌
Owner WEIHAI JIERUI MEDICAL PRODUCTS CO LTD
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