Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1990-05-25
1992-12-01
Kamm, William E.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
604 28, 604 35, 604 43, 128 24AA, 606 99, 606169, 606171, A61B 1756
Patent
active
051676192
ABSTRACT:
A surgical apparatus having a handpiece, a vibration source with the handpiece for generating mechanical vibrations in response to current supplied thereto, and elongated hollow tool operatively associated with the vibration source and attached to the handpiece at a point where essentially no vibrational motion occurs, the tool extending away from the handpiece to the cement to be removed. A method removing cement using the surgical apparatus by applying the tool to the cement and thereby applying mechanical vibration to the cement causing the cement to melt. Removing the cement by suction through the hollow elongated tool. Additional alternate method steps include rotating the tool to apply shear forces to the cement being removed, cooling and damping lateral vibrations at the tool end, and irrigating the cement while melting and removing it. Associated with the alternate method steps are embodiments of the apparatus including a motor for rotating the elongated tool while vibrating and a concentric tubular members for cooling, damping, irrigation and aspiration.
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Kamm William E.
Pontius Kevin
Skolnik Robert M.
Sonokineticss Group
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