Surgery – Instruments – Cutting – puncturing or piercing
Reexamination Certificate
2011-05-31
2011-05-31
Severson, Ryan J (Department: 3731)
Surgery
Instruments
Cutting, puncturing or piercing
Reexamination Certificate
active
07951162
ABSTRACT:
A handpiece and system having a surgical handpiece adapted to perform an operation on a patient, the surgical handpiece having a primary circuit being driven by an applied signal. A controller is operatively coupled to supply operating power to the surgical handpiece. A hand switch is operatively coupled in conjunction with the surgical handpiece to at least partially control an operation of the surgical handpiece. The switch has a secondary resonant circuit receiving the applied signal from the primary circuit and couples a response signal back to the primary circuit. Detection circuitry, operatively coupled to primary circuit, is responsive to a characteristic parameter of the response signal indicative of the presence of the hand switch in proximity of the surgical handpiece.
REFERENCES:
patent: 6017354 (2000-01-01), Culp et al.
patent: 6434507 (2002-08-01), Clayton et al.
Ask Jeeves, “Hall Effect” Apr. 19, 2004, 3 pgs.
Semiconductor Electronics Division, EEEL, Technical Activities, “The Hall Effect”, Apr. 19, 2004, 4 pgs.
Ask Jeeves, “SensorsOverview & System Solutions”, Apr. 19, 2004, 10 pgs.
Bieler Thierry
Cardoletti Laurent
Fleury Christian
Murphy John Murdock
IPLM Group, P.A.
Medtronic Inc.
Severson Ryan J
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