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Connector

A connector and adjacency technology, which is applied in the direction of connecting pipes, medical devices, and other medical devices, can solve problems such as liquid backflow

Inactive Publication Date: 2007-10-03
SHERWOOD SERVICES AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the pressure in the channel space becomes negative as the volume of the channel space increases, so there is a risk of backflow of the liquid in the channel connected to the channel space

Method used

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no. 1 example

[0035]The connector of the present invention will be described in detail below using the accompanying drawings. As for the first embodiment, an example in which the connector of the present invention is used as a three-way stopcock will be described with reference to the drawings. Fig. 1 is a top view of a three-way plug valve according to the first embodiment of the present invention, Fig. 2 is a front view, and Fig. 3 is a side view when Fig. 2 is taken as the front view. As can be seen from these drawings, the three-way stopcock 100 has a housing 10 constituting its outline, a plug body 20 installed in the housing 10 , and a handle portion 30 integrally formed with the plug body 20 .

[0036] The housing 10 has a tubular portion 15 and three branch pipes connected to the tubular portion 15 : a first branch pipe 11 , a second branch pipe 12 and a third branch pipe 13 . A cylindrical space is formed inside the tubular portion 15 . Fig. 4 is a cross-sectional view along A-A ...

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PUM

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Abstract

The present invention is directed to a connector with which negative pressure in the channel space in the connector can be prevented during luer removal, in a closed-system connector. A slit ( 49 ) is furnished in valve body ( 40 ) of three-way stopcock ( 100 ). During luer access and luer removal, first and second moving parts (M 1 and (M 2 ) to the left and right of slit ( 49 ) enter and withdraw from first and second valve body accommodating chambers ( 51 ) and ( 52 ), respectively. First and second valve body accommodating chambers ( 51 ) and ( 52 ) are formed outside of channel space (S), so the operation whereby first and second moving parts (M 1 ) and (M 2 ) enter and withdraw during luer access and luer removal does not affect the change in volume of channel space (S) and negative pressure can be prevented from occurring in channel space (S) by the aforementioned entry and withdrawal.

Description

technical field [0001] The present invention relates to a connector for connection to a liquid dispensing device in which a liquid dispensing channel is formed. In particular, the invention relates to a closed system connector which is normally closed and which is opened when it is desired to deliver liquid into the liquid dispensing channel. Background technique [0002] In the field of medicine, the delivery of fluids such as infusions, blood transfusions, manual dialysis or blood collection is often performed. In order to convey various types of liquids, pipes in the form of tubular bodies are usually used as liquid dispensing means, to which a connector is connected and various liquids are mixed together or cut off. The connector is attached midway in the tubing and is used for other purposes besides being used as a coinfusion tool for coinfusing other drugs. For example, the connector can provide the function of an on-off valve, which can be used as a three-way stopco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M39/00A61M39/10A61M39/22
CPCA61M39/26A61M39/10A61M39/223A61M2039/0036A61M2039/1027A61M2039/263A61M2039/266A61M2206/20A61M39/20A61M39/00
Inventor 木谷一郎船村重彰酒井阳介
Owner SHERWOOD SERVICES AG
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