Disposable electrosurgical handpiece

Details Disposable electrosurgical handpiece Disposable electrosurgical handpiece

2011-02-01

2011-02-01

Peffley, Michael (Department: 3739)

Surgery

Instruments

Electrical application

C606S041000, C606S034000

Reexamination Certificate

active

07879032

ABSTRACT:
Incorporating into an electrosurgical handpiece a device configured to disable the handpiece when a built-in usage time period expires. Preferably, the device comprises a timer in the form of an activating battery with a known discharge rate such that the battery voltage gradually reduces in value with use. The battery in turn is coupled to a circuit which monitors the battery voltage and operates a switch which decouples the handpiece electrode from the electrosurgical current source when the battery voltage falls below a preset value. This effectively disables the handpiece preventing reuse.

REFERENCES:
patent: 4706667 (1987-11-01), Roos
patent: 5814044 (1998-09-01), Hooven
patent: 6235027 (2001-05-01), Herzon
patent: 6461352 (2002-10-01), Morgan et al.
patent: 7156844 (2007-01-01), Reschke et al.
patent: 2006/0009763 (2006-01-01), Goble et al.
patent: 2010/0114088 (2010-05-01), Buchman et al.

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