Surgery – Instruments – Cutting – puncturing or piercing
Patent
1999-03-23
2000-08-15
Buiz, Michael
Surgery
Instruments
Cutting, puncturing or piercing
606159, 600564, A61B 1732
Patent
active
061029262
ABSTRACT:
Apparatus and methods for percutaneously performing myocardial revascularization are provided using a catheter having an end region that is directable to contact a patient's endocardium at a plurality of positions. A cutting head is disposed within a lumen of the catheter and coupled to a drive tube that rotates and reciprocates the drive shaft. One or more stabilizing elements are disposed on the distal end to retain the catheter in position when the cutting head is actuated. The cutting head and drive tube include a lumen through which severed tissue is aspirated. Mechanisms and methods are provided for providing the operator with information to assess the desirability of treating a proposed site. Mechanisms also are provided for controlling the maximum extension of the cutting head beyond a distal endface of the catheter, independent of the degree of tortuosity imposed on the catheter.
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Leopold Eric W.
Park Peter K.
Philip Susan
Saadat Vahid
Tartaglia Joseph M.
AngioTrax, Inc.
Buiz Michael
Lewis William W
Pisano Nicola A.
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