Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-12-08
1997-12-09
Buiz, Michael Powell
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604282, 604 53, A61M 2900
Patent
active
056954697
ABSTRACT:
A vascular dilatation device for enlarging a flow passage in an obstruction in a vessel carrying flowing blood. A flexible cylindrical dilatation member having first and second ends is placed in the flow passage in the obstruction. An intermediate portion lies between the first and second ends. The flexible cylindrical dilatation member also has an interior flow passage with a diameter and a longitudinally extending central axis extending therethrough. The diameter of the flow passage is variable with movement of the first and second ends relative to each other along the longitudinally extending central axis from a contracted to an expanded condition. A control mechanism causes relative axial movement between the first and second ends towards each other from an extended position to a contracted position. The control mechanism includes an inner flexible elongate tubular member between the first and second ends of the flexible cylindrical dilatation member. The inner flexible elongate tubular member is sufficiently rigid and causes elongation of the cylindrical dilatation member to decrease its diameter and to advance the cylindrical dilatation member through the obstruction in the vessel while preventing axial contraction of the cylindrical dilatation member.
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Buiz Michael Powell
Gring N. Kent
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