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US 10,206,704 B2Granted
Method for ultrasonic tissue excision with tissue selectivity
AssigneeMisonix, Incorporated
InventorsDan Voic, Alexander Darian, Christian Ritter, Mircea Paraschiv
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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.
Claims20
A surgical method comprising:
- providing an ultrasonic surgical instrument comprising a blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch;
- manually inserting said blade through an outer cortex and cancellous tissue of a bone of a patient;
- manually further inserting said blade into an inner cortex of the patient's bone;
- during the further inserting of said blade, ultrasonically vibrating said blade, said blade preventing a surgeon from seeing at least a distal-most portion of said cutting edge during the further inserting of said blade, where the distal-most portion of said cutting edge is located inside the patient;
- and
- manually terminating the further inserting of the blade upon detecting via tactile sensation on a part of the surgeon a reduction in resistance to advance of said blade indicating penetration of a distal tip of said blade through a distal or far side of said inner cortex.
3 more elements
A surgical method comprising:
- providing a cutting blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch;
- manually inserting said blade into 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;
- ultrasonically vibrating said blade during the inserting of said blade;
- forming a cut in the patient by the inserting and ultrasonic vibrating of said blade, the blade preventing a surgeon from seeing at least a distal-most portion of said cutting edge during the inserting of said blade, where the distal-most portion of said cutting edge is located inside the patient;
- and
- manually terminating the inserting of the blade upon detecting via tactile sensation on a part of the surgeon a reduction in resistance to advance of said blade indicating penetration of a distal tip of the blade through a distal or far side of said hard tissue.
3 more elements
Dependencies are inferred from the claim text.