Stryker Corporation

David E Monk

Jerry A Culp

Kevin J Schemansky

Kris Douglas Eager

Steven Anthony Tyler

Michael John Fraticelli

A hand switch for removable attachment to a powered surgical tool. The switch includes a ring formed with a slot that is snap fit over the tool with which the switch is used. A manually actuatable lever is pivotally mounted to the ring. Internal to the lever is a magnet. The position of the magnet is monitored by a sensor internal to the tool. A tab extends inwardly from the ring. The tab seats in a notch integral with the tool. The seating of the tab in the notch aligned the switch with the sensor internal to the tool.

Removable hand switch for attachment to a powered surgical tool

A surgical tool system including a handpiece with a power generating unit and a control console for supplying energization signals to the power generating unit. Based on the data in a memory associated with the handpiece, the control console supplies energization signals to the handpiece power generating unit in either a motor drive mode or a direct drive mode. In the motor drive mode the signals are supplied to windings integral with the power generating unit based on the position of a rotor also part of the power generating unit. In the direct drive mode, energizaiton signals are supplied to the power generating unit independent of rotor position.

Surgical tool system with a powred handpiece and a console, the console able to provide energization signals to the handpiece in either a motor drive mode or a direct drive mode

A surgical tool system ( ) with a powered surgical handpiece ( ). A removable handswitch ( ) is attached to the handpiece. The handswitch includes a slip ring ( ) that removably holds the handswitch to the handpiece. A lever arm ( ) is pivotally attached to the slip ring. A magnet ( ) is fitted in the lever arm. The angle of the lever arm is set by the surgeon to indicate the on/off state and operating speed of the handpiece. Internal to the handpiece is a sensor ( ) that generates a signal based on the relative proximity of the magnet. The sensor signal is thus employed as the control signal for regulating the operation of the handpiece. Thus a surgeon can selectively use the handpiece with or without the mounted control switch.

Powered surgical handpiece with removable control switch

An integrated surgical tool system (,) for energizing different powered surgical handpieces (,). Internal to each handpiece is a non-volatile memory (,) which stores data regarding the operating parameters of the handpiece. This data, includes information about the speeds at which any motor internal to the handpiece should be driven, the maximum current that should be drawn by the handpiece and the maximum internal temperature of the handpiece. The handpiece is plugged into a complementary control console (,). The control console reads the data in the internal memory. Based on the retrieved data and manual control signals, the control console supplies energization signals to the handpiece so as to cause the appropriate actuation of the handpiece.

Integrated system for powered surgical tools

An integrated surgical tool system (30) for energizing different powered surgical handpieces (32, 33). Internal to each handpiece is a non-volatile memory (72) which stores data regarding the operating parameters of the handpiece. This data, includes information about the speeds at which any motor internal to the handpiece should be driven, the maximum current that should be drawn by the handpiece and the maximum internal temperature of the handpiece. The handpiece is plugged into a complementary control console (36). The control console reads the data in the internal memory. Based on the retrieved data and manual control signals, the control console supplies energization signals to the handpiece so as to cause the appropriate actuation of the handpiece.

A peristaltic pump includes a panel member having a rotatably driven rotor with roller elements on it, two projections which each have insert-receiving slots, two cover-supporting slots each extending away from a respective projection, and an orientation tab disposed between the projections. A one-piece insert has a platelike portion with ends slidably received in the insert-receiving slots, a recess which receives the orientation tab, and two pairs of aligned projections on opposite sides thereof, the insert further including a flexible tube extending around the rotor and having its ends engaging respective projections on one side of the platelike portion. A cover member is removably supported on the panel member by flanges which slidably engage the cover-receiving slots and by locking surfaces thereon which engage locking surfaces on the projections, the cover member including a curved surface adjacent and facing the roller elements on the rotor, and serving as a cover for the tube and rotor.

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Portage, MI, United States of America

David E Monk