Rotatable cutting implements with friction reducing material for ultrasonic surgical instruments
First Claim
1. A surgical instrument, comprising:
- a housing;
a transducer assembly rotatably supported within the housing, wherein the transducer assembly is configured to selectively generate an ultrasonic motion;
a motor coupled to the transducer assembly, wherein the motor is configured to selectively apply rotational motion to the transducer assembly, and wherein the transducer assembly is operable to generate the ultrasonic motion and the motor is operable to apply the rotational motion to the transducer assembly independent of each other;
a hollow sheath coupled to the housing, wherein the hollow sheath defines a distal cavity; and
a blade coupled to the transducer assembly and rotatably supported within the hollow sheath, wherein a distal end of the blade includes a tissue-cutter rotatably supported in the distal cavity, and wherein a portion of the tissue-cutter is arranged to apply the ultrasonic motion to tissue.
3 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument including a housing, a transducer assembly, a motor, a hollow sheath, and a blade is disclosed. The transducer assembly may be rotatably supported within the housing and may be configured to selectively generate an ultrasonic motion. The motor may be coupled to the transducer assembly and may be configured to selectively apply rotational motion to the transducer assembly. The hollow sheath may be coupled to the housing and may define a distal cavity. The blade may be coupled to the transducer assembly and may be rotatably supported within the hollow sheath. A distal end of the blade may include a tissue-cutter that may be rotatably supported in the distal cavity. The distal cavity may comprise a friction reducing material. A portion of the tissue-cutter may be arranged to apply the ultrasonic motion to tissue.
2351 Citations
8 Claims
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1. A surgical instrument, comprising:
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a housing; a transducer assembly rotatably supported within the housing, wherein the transducer assembly is configured to selectively generate an ultrasonic motion; a motor coupled to the transducer assembly, wherein the motor is configured to selectively apply rotational motion to the transducer assembly, and wherein the transducer assembly is operable to generate the ultrasonic motion and the motor is operable to apply the rotational motion to the transducer assembly independent of each other; a hollow sheath coupled to the housing, wherein the hollow sheath defines a distal cavity; and a blade coupled to the transducer assembly and rotatably supported within the hollow sheath, wherein a distal end of the blade includes a tissue-cutter rotatably supported in the distal cavity, and wherein a portion of the tissue-cutter is arranged to apply the ultrasonic motion to tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification