Ultrasonic surgical system
First Claim
Patent Images
1. An ultrasonic surgical system comprising:
- an ultrasonic transmission member;
an ultrasonically actuated end-effector attached to the transmission member; and
a sheath that is elastically moveable relative to the end-effector, the sheath having a first configuration in which a distal end of the sheath covers the end-effector to inhibit interaction with tissue by the end-effector and a second configuration in which the end-effector is exposed outside the distal end of the sheath to interact with tissue;
wherein the sheath is moved from the first configuration to the second configuration by application of a force to the distal, terminal end of the sheath;
wherein the sheath is configured to elastically move from the first configuration to the second configuration upon contact with hard tissue and the sheath is configured to prevent elastic movement into the second configuration upon contact with soft tissue; and
wherein the sheath elastically returns from the second configuration to the first configuration upon removal from contact with the hard tissue.
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Abstract
An ultrasonic surgical system includes an ultrasonic transmission member having a proximal end and a distal end. An ultrasonically actuated end-effector is attached at the distal end of the transmission member. A pressurized fluid delivery system includes a fluid nozzle in communication with at least one fluid source. The fluid nozzle is arranged and configured to deliver pressurized fluid to soft tissue at a rate to move the soft tissue away from the end-effector during use.
34 Citations
20 Claims
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1. An ultrasonic surgical system comprising:
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an ultrasonic transmission member; an ultrasonically actuated end-effector attached to the transmission member; and a sheath that is elastically moveable relative to the end-effector, the sheath having a first configuration in which a distal end of the sheath covers the end-effector to inhibit interaction with tissue by the end-effector and a second configuration in which the end-effector is exposed outside the distal end of the sheath to interact with tissue; wherein the sheath is moved from the first configuration to the second configuration by application of a force to the distal, terminal end of the sheath; wherein the sheath is configured to elastically move from the first configuration to the second configuration upon contact with hard tissue and the sheath is configured to prevent elastic movement into the second configuration upon contact with soft tissue; and wherein the sheath elastically returns from the second configuration to the first configuration upon removal from contact with the hard tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An ultrasonic surgical system comprising:
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an ultrasonic transmission member; an ultrasonically actuated end-effector attached to the transmission member; a sheath that is moveable relative to the end-effector, the sheath having a first configuration in which a distal end of the sheath covers the end-effector to inhibit interaction with tissue by the end-effector and a second configuration in which the end-effector is exposed outside the distal end of the sheath to interact with tissue, and the sheath is moved from the first configuration to the second configuration by application of a force to the distal, terminal end of the sheath; and a biasing member operatively connected to the sheath such that the sheath is biased toward the first configuration, wherein the biasing member is a spring; wherein the sheath is configured to move from the first configuration to the second configuration upon contact with hard tissue and the sheath is configured to prevent movement into the second configuration upon contact with soft tissue. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification