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Liquid Purification

Methods-and-devices-for-attaching-and-detaching-transmission-components

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Methods and devices for attaching and detaching transmission components

Details

Inventors: Beaupre, Jean; Whipple, Gary;
Assignee: Ethicon Endo-Surgery, Inc. (Cincinnati, OH)
Primary Examiner: Buiz; Michael
Assistant Examiner: Troung; Kevin
Attorney, Agent or Firm: Rockey, Milnamow & Katz, Ltd.

One surgical device includes a transducer assembly adapted to vibrate at an ultrasonic frequency in response to electrical energy. A first transmission component is adapted to receive and transmit the ultrasonic vibration from a first end to a second end. A second transmission component is adapted to receive and transmit the ultrasonic vibrations from a first end to a second end. A torque limiting device coupled to the second transmission component limits the torque when the second end of the first transmission rod is coupled to the first end and a method of attaching a transmission component is also provided. A method in accordance with the present invention includes the steps of providing a handpiece assembly having an integral torque limiting mechanism and a first transmission component and threading a second transmission component onto the first transmission component of the handpiece assembly. The method also includes the steps of rotating a sleeve of the handpiece assembly until the second transmission component has been tightened to a predetermined torque on the first transmission component of the handpiece assembly.

DETAILED DESCRIPTION In view of the above, the present invention relates to methods and devices for facilitating attachment and detachment of transmission components.
In general, a first transmission component can be quickly coupled to and disengaged from a second transmission component without the use of a separate tool.
The first transmission component may be removed from the second transmission component for disposal or to permit sterilization so that it may be reused.
The devices in accordance with the present invention are configured to limit the amount of torque applied when the first transmission component is attached to the second transmission component.
An integral torque mechanism limits the application of torque when tightening the transmission components.
The torque mechanism may be built into the a handpiece assembly of the surgical device or into a sleeve or adapter of a surgical instrument.
A surgical device in accordance with the present invention includes a transducer assembly adapted to vibrate at an ultrasonic frequency in response to electrical energy.
A first transmission component is adapted to receive ultrasonic vibration from the transducer assembly and transmit the ultrasonic vibration from a first end to a second end of the first transmission component.
The first end of the first transmission component is coupled to the transducer assembly.
A second transmission component is adapted to receive the ultrasonic vibration from the first transmission component and transmit the ultrasonic vibration from a first end to a second end of the second transmission component.
A torque limiting device integrally coupled to one of the first and second transmission components to limit the torque when the second end of the first transmission rod is coupled to the first end of the second transmission component.
Another surgical instrument in accordance with the present invention includes an adapter having an inner member having a predetermined configuration carried by the adapter

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