Rotating transducer mount for ultrasonic surgical instruments
DCFirst Claim
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1. A surgical instrument comprising:
- a housing;
a generator supported by said housing, said generator to generate an ultrasonic drive signal;
an electrical contact assembly in electrical communication with said generator;
an acoustic assembly comprising first and second piezoelectric elements, said acoustic assembly rotatable with respect to said housing and said electrical contact assembly, wherein said electrical contact assembly is in electrical communication with said first and second piezoelectric elements;
a first electrode electrically coupled to at least one of said first and second piezoelectric elements and supported for rotational contact with said electrical contact assembly; and
an end effector coupled to said acoustic assembly, said end effector rotatable relative to said housing.
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Abstract
In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that operably supports an electrical contact assembly therein that is in electrical communication with a signal source. An acoustic assembly is supported within the handpiece housing in rotatable contact with the electrical contact assembly. In various embodiments, the signal source produces at least one of an ultrasonic signal and a radio frequency signal.
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Citations
30 Claims
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1. A surgical instrument comprising:
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a housing; a generator supported by said housing, said generator to generate an ultrasonic drive signal; an electrical contact assembly in electrical communication with said generator; an acoustic assembly comprising first and second piezoelectric elements, said acoustic assembly rotatable with respect to said housing and said electrical contact assembly, wherein said electrical contact assembly is in electrical communication with said first and second piezoelectric elements; a first electrode electrically coupled to at least one of said first and second piezoelectric elements and supported for rotational contact with said electrical contact assembly; and an end effector coupled to said acoustic assembly, said end effector rotatable relative to said housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A surgical instrument comprising:
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a housing; a generator supported by said housing, said generator to generate an ultrasonic drive signal; an electrical contact assembly in electrical communication with said generator; an acoustic assembly comprising first and second piezoelectric elements, said acoustic assembly rotatable with respect to said generator and said electrical contact assembly, wherein said electrical contact assembly is in electrical communication with said first and second piezoelectric elements; a first electrode electrically coupled to at least one of said first and second piezoelectric elements and supported for rotational contact with said electrical contact assembly; and an end effector coupled to said acoustic assembly, said end effector rotatable relative to said generator. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification