Surgery – Instruments – Cutting – puncturing or piercing
Reexamination Certificate
2003-01-17
2008-12-16
Manahan, Todd E. (Department: 3731)
Surgery
Instruments
Cutting, puncturing or piercing
C606S079000
Reexamination Certificate
active
07465309
ABSTRACT:
A powered surgical handpiece that actuates a cutting accessory releasably attached to it. A drive shaft is connected to a motor internal to the handpiece that rotates upon actuation of the motor. The drive shaft has a bore for receiving an elongated shaft of the cutting accessory. A collet attached to the drive shaft has feet that releasably engage the cutting accessory shaft. The cutting accessory shaft has longitudinally spaced apart retention features with surfaces against which the collet feet can bear. The drive shaft bore is formed so that each retention feature can be aligned with the collet. This facilitates the selective coupling of the cutting accessory to the handpiece so that the extent to which the distal end of the cutting accessory extends forward of the handpiece can be selectively set.
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PCT App. No. PCT/US01/05378, Initial Preliminary Examination Report, May 2002.
PCT App. No. PCT/US01/05378, Final Preliminary Examination Report, Jun. 2002.
Manahan Todd #E.
Nguyen Tuan V
Stryker Corporation
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