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US 5,149,326 AGranted
Adjustable catheter contamination shield
AssigneeBaxter International Inc.
InventorsRandal W. Woodgrift, Gregory P. Welsh
Life of this patent
Estimating the term…
Abstract
An adjustable catheter contamination shield includes a distal fitting, a proximal fitting and a collapsible shield, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for preventing contact with a portion of the catheter disposed between the distal and proximal fittings. The shield is supported in a collapsed configuration and controlled expansion thereof is provided when the distal and proximal fittings are moved apart from one another, the controlled expansion enabling visual observation through an expanded portion of the collapsible shield when the distal and proximal fittings are moved apart from one another.
Claims59
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and means, defining a bore through the distal fitting, for enabling passage of a catheter therethrough;
- a proximal fitting including means, defining a bore therethrough, for enabling passage of a catheter through the proximal fitting;
- collapsible shield means, disposed between said distal and proximal fitting, for enclosing an adjustable space therebetween and for shielding a portion of a catheter disposed between the distal and proximal fittings;
- and
- means for supporting the shield means in a collapsed configuration and for causing the collapsed shield means to expand along a longitudinal axis thereof from only one portion of the collapsed configuration at a time when the distal and proximal fittings are moved apart from one another.
2 more elements
The adjustable catheter contamination shield according to claim 67 wherein aid distal fitting includes flexible tube means coaxially aligned therewith for reducing strain on a catheter passing therethrough.
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and means, defining a bore through the distal fitting, enabling passage of a catheter therethrough;
- a proximal fitting including means, defining a bore therethrough, for enabling passage of the catheter through the proximal fitting;
- collapsible shield means, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for preventing contact with a portion of the catheter disposed between the distal and proximal fittings, the shield means being formed of a material enabling visual observation of the catheter through an expanded portion of the shield means, when the catheter is disposed between the distal and proximal fittings;
- and
- means for supporting the shield means in a collapsed configuration and for producing the expanded portion, through which the catheter is observed, while maintaining a remainder of the shield means in the collapsed configuration, as the distal and proximal fittings are moved apart from one another.
2 more elements
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and means, defining a bore through the distal fitting, for enabling passage of a catheter therethrough;
- a proximal fitting including means, defining a bore therethrough, for enabling passage of a catheter through the proximal fitting;
- collapsible shield means, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for shielding a portion of a catheter disposed between the distal and proximal fittings;
- and
- means for supporting the shield means in a collapsed configuration and for causing the collapsed shield means to expand only from at least one selected point along the collapsed configuration.
2 more elements
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling with an introducer and means, defining a bore through the distal fitting, for enabling passage of a catheter therethrough;
- a proximal fitting including means, defining a bore therethrough, for enabling passage of the catheter through the proximal fitting;
- collapsible shield means, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for preventing contact with a portion of the catheter disposed between the distal and proximal fittings, the shield means being formed of a material enabling visual observation of the catheter through an expanded portion thereof when the catheter is disposed between the distal and proximal fittings and the expanded portion is in a state of tension;
- and
- means, connected with one of said distal and proximal fittings, for supporting the shield means in a collapsed configuration with said distal and proximal fittings adjacent to one another for enabling the catheter to be threaded through the bores of the distal and proximal fittings, for causing the collapsed shield means to expand along a longitudinal area thereof from one end of the collapsed configuration, when the distal and proximal fittings are moved apart from one another, and for causing the expanded portion of the shield to be in the state of tension enabling visual observation of the catheter therethrough.
2 more elements
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and first flexible tube means, coaxially aligned with said distal fitting, for enabling passage of a catheter therethrough and preventing strain to said catheter;
- a proximal fitting including second flexible tube means, coaxially aligned with aid proximal fitting, for enabling passage of a catheter therethrough and preventing strain to said catheter and;
- collapsible shield means, disposed between said distal and proximal fitting, for enclosing an adjustable space therebetween and for shielding with a portion of the catheter disposed between the distal and proximal fittings, said collapsible shield means being disposed over said first and second flexible tube means.
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and means, defining a bore through the distal fitting, for enabling passage of a catheter therethrough;
- a proximal fitting including means, defining a bore therethrough, for enabling passage of the catheter through the proximal fitting;
- collapsible shield means, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for shielding a portion of the catheter disposed between the distal and proximal fittings;
- and
- means for controlling expansion of the collapsible shield means as the distal and proximal fittings are moved apart from one another in order that a portion of the collapsible shield means remains in a totally collapsed configuration until all of the collapsible shield means is in an expanded configuration.
2 more elements
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and means, defining a bore through the distal fitting, for enabling passage of a catheter therethrough;
- a proximal fitting including means, defining a longitudinal extending bore therethrough, for enabling passage of the catheter through the proximal fitting;
- collapsible shield means, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for shielding a portion of the catheter disposed between the distal and proximal fittings;
- and
- means, defining a plurality of folds in said collapsible shield means, for both enabling portions of said collapsible shield means to be disposed in generally parallel longitudinally extending relationship with one another when said collapsible shield means is in a collapsed configuration and for enabling said portions of said collapsible shield means to be disposed in a generally serial relationship with one another when said collapsible shield means is in an expanded configuration.
2 more elements
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and first flexible tube means, coaxially aligned with aid distal fitting, for enabling passage of a catheter therethrough and preventing strain to said catheter;
- a proximal fitting including second flexible tube means, coaxially aligned with aid proximal fitting, for enabling passage of a catheter therethrough and preventing strain to said catheter;
- collapsible shield means, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for preventing contact with a portion of the catheter disposed between the distal and proximal fitting;
- and
- means, defining a plurality of folds in said collapsible shield means, for both enabling portions of said collapsible shield means to be disposed in generally parallel relationship with one another when said collapsible shield means is in a collapsed configuration and for enabling said portions of said collapsible shield means to be disposed in a generally serial relationship when said collapsible shield means is in an expanded configuration.
2 more elements
An adjustable catheter contamination shield comprising:
- a distal fitting including bushing means for coupling to an introducer and means, defining a bore through the distal fitting, for enabling passage of a catheter therethrough;
- a proximal fitting including means, defining a bore therethrough, for enabling passage of the catheter through the proximal fitting;
- and
- collapsible shield means, disposed between said distal and proximal fittings, for enclosing an adjustable space therebetween and for preventing contact with a portion of the catheter disposed between the distal and proximal fittings, said collapsible shield means including means, defining a convoluted structure in which portions of the collapsible shield means overlay one another longitudinally, for controlling the expansion of the collapsible shield means as the proximal and distal fittings are moved apart from one another.
1 more element
A procedure for providing a contamination free environment exterior to a body for a catheter comprising the steps of:
- coupling a distal fitting of a contamination shield to an introducer, the introducer being adapted for insertion into a venous vessel;
- passing the catheter through a proximal fitting and into a contamination free area enclosed by an expandable shield disposed between said distal and proximal fittings;
- expanding the shield from one end of a collapsed configuration thereof to enable visual observation of a catheter portion passing between the distal and proximal fittings.
Dependencies are inferred from the claim text.