Back to results
US 10,869,686 B2Granted
Method for ultrasonic tissue excision with tissue selectivity
AssigneeMisonix, Incorporated
InventorsDan Voic, Alexander Darian, Christian Ritter, Mircea Paraschiv
Life of this patent
Estimating the term…
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 blades, 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 blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch;
- using said ultrasonic surgical blade to make at least a first cut and a second cut in a spinal bone of a patient's spine;
- and
- removing, from the patient's spine, a bone segment bounded on two sides by said first cut and said second cut, respectively,
- wherein the using of said ultrasonic surgical blade to make each of said first cut and said second cut includes:
- inserting said ultrasonic surgical blade into said spinal bone;
- during the inserting of said ultrasonic surgical blade, ultrasonically vibrating said ultrasonic surgical blade, said ultrasonic surgical blade preventing a surgeon from seeing at least a distal-most portion of said cutting edge during the inserting of said ultrasonic surgical blade, where the distal-most portion of said cutting edge is located inside the patient;
- and
- terminating the inserting of said ultrasonic surgical blade upon detecting via tactile sensation on a part of a surgeon a change in resistance to advance of said ultrasonic surgical blade indicating contact with soft tissue.
6 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;
- using said cutting blade to make at least a first cut and a second cut in a spinal bone of a patient's spine;
- and
- removing, from the patient's spine, a bone segment bounded on two sides by said first cut and said second cut, respectively,
- wherein the using of said cutting blade to make each of said first cut and said second cut includes:
- inserting said cutting blade into relatively hard tissue of said spinal bone located adjacent to relatively soft tissue, so that said cutting edge cuts through said hard tissue and leaves said soft tissue substantially intact and undamaged;
- ultrasonically vibrating said cutting blade during the inserting of said cutting blade;
- forming the respective cut in the patient by the inserting and ultrasonic vibrating of said cutting blade, the blade preventing a surgeon from seeing at least a distal-most portion of said cutting edge during the inserting of said cutting blade, where the distal-most portion of said cutting edge is located inside the patient;
- and
- terminating the inserting of said cutting blade upon tactilely detecting a change indicating contact with soft tissue.
7 more elements
Dependencies are inferred from the claim text.