SURGICAL INSTRUMENT WITH SLIP RING ASSEMBLY TO POWER ULTRASONIC TRANSDUCER

摘要

A surgical instrument includes a rotatable electrical coupling assembly having a first part and a second part that electrically couple and rotate relative to each other. The second part is carried by and rotates with a tube collar coupled to a transducer. A portion of the transducer is inserted through an aperture of the second part, but does not contact the second part. The first part of the assembly may electrically couple to the second part via pogo pins, brush contacts, or ball bearings. Alternatively, the first part may comprise conductive channels formed in the casing. The second part may comprise a rotatable drum with a conductive trace. In some versions, one or more components may comprise MID components. In another version, the rotatable electrical coupling assembly comprises a rotatable PC board and brush contact. Further still, a circuit board may be provided with the transducer inside a transducer casing.

主权项

1. A surgical instrument comprising:
(a) a body portion; (b) an ultrasonic transducer; (c) a tube collar wherein the tube collar is configured to rotate with the transducer; and (d) a rotatable electrical coupling assembly comprising:
i. a first part having a first conductive portion, andii. a second part having a second conductive portion and an aperture formed through the second part,wherein a second conductive portion is electrically coupled to the transducer, wherein the first conductive portion and the second conductive portion are electrically coupled, wherein the second part is configured to rotate with the tube collar, and wherein the second part is rotatable relative to the first part; wherein a portion of the transducer is inserted through the aperture of the second part, and wherein the portion of the transducer inserted through the aperture does not contact the second part.