Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Reexamination Certificate
2007-02-20
2007-02-20
Hayes, Michael J. (Department: 3734)
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
C604S043000
Reexamination Certificate
active
10152129
ABSTRACT:
An apparatus and system for removing an obstruction from a body lumen simultaneously mechanically dislodges the obstruction, macerates the obstruction, and aspirates the effluent caused thereby. The maceration is effected by directing pressurized fluid to the obstruction, while the obstruction is dislodged by a tip portion formed on the end of a guidewire. The apparatus includes a flexible catheter having at least two channels individually accommodating fluid flow paths towards and away from the obstruction. The guidewire may be disposed in either of the channels or a third channel formed in the flexible catheter. The apparatus also includes a drive unit for rotating the guidewire. The drive unit may be an external drive unit, such as an electrical motor, or may include drive elements formed on the guidewire within a drive chamber, across which the fluid flows and imparts energy against the drive elements to cause rotation of the guidewire.
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Product information for Oasis™ Thrombectomy System. © 1999.Boston Scientific Corporati
DeVries Robert B.
DiCarlo Paul
Hubbart Erice N.
Voss Michael J.
Welch Eric
Crompton Seager & Tufte LLC
Hayes Michael J.
Scimed Life Systems Inc.
Victor Nguyen
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