04857062 is referenced by 210 patents and cites 10 patents.

The catheter insertion valve of the present invention comprises a central tubular body and a non-removable tubular cap that can be screwed onto the body wherein a bore extending through the body and the cap defines a pathway for a catheter. Such catheters are inserted into arteries, organs or body cavities for the purpose of introducing medications of instruments for treatment, diagnosis or the performing of in vivo procedures. A seal located within the central body of the valve is used to form a fluid-tight seal about the catheter, guidewire or other instrument extending therethrough. Alternatively, the seal can completely close off the pathway when it is not being used for catheter insertion thereby preventing air entrainment. The central body is provided with one or more seal position indicators to indicate to the operator that a seal has been formed about a catheter or guidewire of standard dimension. The seal is manually adjusted by rotating the non-removable cap. The cap is formed on a mold, removed prior to cooling and then reformed by annealing the cap prior to mounting onto the central body of the valve.

Title
Catheter introducer valve
Application Number
7/166000
Publication Number
4857062
Application Date
March 9, 1988
Publication Date
August 15, 1989
Inventor
Michael A Russell
Cohasset
MA, US
Agent
Hamilton Brook Smith & Reynolds
Assignee
Medical Parameters
MA, US
IPC
A61M 5/00
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