Device and method for ultrasonic tissue excision with tissue selectivity
First Claim
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1. An ultrasonic surgical blade comprising a generally flat blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch.
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Abstract
A surgical method utilizes a cutting blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch and preferably between about 0.001 inch and 0.010 inch. The blade is moved in contact with relatively hardly tissues which are disposed adjacent to softer tissues at a surgical site in a patient. The blade is ultrasonically vibrated during the moving of the blade, whereby the hard tissue is cut with a modicum of damage being inflicted on the soft tissue.
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Citations
17 Claims
- 1. An ultrasonic surgical blade comprising a generally flat blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch.
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8. A surgical method comprising:
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providing a cutting blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch;
moving said blade in contact with relatively hard tissue located adjacent to relatively soft tissue at a surgical site in a patient, so that said cutting edge cuts through said hard tissue and leaves said soft tissue substantially intact and undamaged; and
ultrasonically vibrating said blade during the moving of said blade. - View Dependent Claims (9, 10, 13, 14, 15, 16)
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17. A surgical method comprising:
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providing a cutting blade having a thickness along a cutting edge of between about 0.001 inch and about 0.010 inch;
moving said blade in a surgical site in a patient so that said cutting edge moves generally along an interface between relatively hard tissue and relatively soft tissue; and
ultrasonically vibrating said blade during the moving of said blade along said interface, whereby said hard tissue is cut and separated from said soft tissue with a modicum of damage being inflicted on said soft tissue.
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Specification