Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1994-06-17
1996-07-30
Thaler, Michael H.
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606170, 604 22, A61B 1732
Patent
active
055407072
ABSTRACT:
An improved expandable removal element for an atherectomy device wherein the expandable removal element is movable between an expanded position and a contracted position. In one embodiment of the present invention, a single drive shaft is operatively connected to the distal end of the expandable material removal element for rotating the removal element. A catheter surrounds a portion of the drive shaft. The catheter is shiftable with respect to the drive shaft for moving the material removal element between the expanded position and the contracted position. In another embodiment of the present invention, dual coaxial drive shafts are employed. The inner drive shaft and the outer drive are shiftable with respect to one another for moving the removal element between the expanded position and the contracted position. The present invention also describes several embodiments for an improved removal element. One embodiment or the present invention is to provide a braid pattern wherein each single primary braid wire within the braid pattern is individually radially wrapped with a second "wrapping" wire. The "wrapping" wire, which is coated with an abrasive, primarily performs the removal function. Finally, a number of novel methods for removing vascular occlusion material are provided.
REFERENCES:
patent: 3320957 (1967-05-01), Sokolik
patent: 3352303 (1967-11-01), Delaney
patent: 4650466 (1987-03-01), Luther
patent: 4679557 (1987-07-01), Opie et al.
patent: 4990134 (1991-02-01), Auth
patent: 5071425 (1991-12-01), Gifford, III et al.
patent: 5116350 (1992-05-01), Stevens
patent: 5165421 (1992-11-01), Fleischhacker et al.
Hackett Steven S.
Kugler Chad J.
Ressemann Thomas V.
Vrba Anthony C.
Lewis William W.
Sci-Med Life Systems, Inc.
Thaler Michael H.
LandOfFree
Expandable intravascular occlusion material removal devices and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Expandable intravascular occlusion material removal devices and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable intravascular occlusion material removal devices and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1654959