Catheter with intraluminal sealing element

Details Catheter with intraluminal sealing element Catheter with intraluminal sealing element

1992-07-15

1994-09-20

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604256, 604265, 606194, A61M 2902

Patent

active

053485378

ABSTRACT:
A sealing element for dilatation and other inflatable catheters which is formed of a polymer matrix having a bearing surface and having incorporated, at least in the portion of the matrix forming the bearing surface, a lubricous material which swells upon contact with an aqueous based liquid. The bearing surface is adapted to engage the surface of a movable member such as a guidewire when the bearing surface expands from contact with aqueous based liquid. This engagement seals the interface between the movable member and the sealing element and prevents the passage of significant amounts of liquid through the interface between these elements.

REFERENCES:
patent: 4798597 (1989-01-01), Vaillancourt
patent: 4994047 (1991-02-01), Walker et al.
patent: 4998923 (1991-03-01), Samson et al.
patent: 5015238 (1991-05-01), Solomon et al.
patent: 5104389 (1992-04-01), Deem et al.

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