Protective sheath for catheter balloons

Details Protective sheath for catheter balloons Protective sheath for catheter balloons

1997-08-29

1999-02-23

Buiz, Michael

Surgery

Instruments

Means for inserting or removing conduit within body

604 96, 128898, A61B 1100

Patent

active

058738800

ABSTRACT:
A polymeric heat shrinkable tubular sheath for mounting about a balloon on a dilatation catheter by heat treating at a temperature which does not detrimentally effect the properties of the balloon to shrink the sheath onto the balloon. The tubular sheath is preferably heated to a temperature above body temperature, e.g. 40<100.degree. C., preferably less than 85.degree. C., to heat shrink the sheath onto the balloon. A presently preferred polymeric material is a copolymer of ethylene(75%) and methyl acrylate (25%). The heat shrinkable sheath has an inner lumen with minimum dimensions large enough to facilitate the advancement of the sheath over the exterior of a dilatation balloon without the need for a great deal of manual manipulation by the physician or other operator prior to heat shrinking.

REFERENCES:
patent: 4710181 (1987-12-01), Fuqua
patent: 5147302 (1992-09-01), Euteneuer et al.
patent: 5352236 (1994-10-01), Jung et al.
patent: 5409495 (1995-04-01), Osborn
patent: 5593412 (1997-01-01), Martinez et al.

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