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US 7,882,841 B2Granted
Minimally invasive methods and devices for the treatment of prostate diseases
AssigneeProcept, Inc.
InventorsNikolai Aljuri, Rodney C. Perkins
Life of this patent
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Abstract
Methods and systems for resecting and debulking prostatic tissue to utilize a shaft carrying an energy source. The shaft is anchored by a balloon or other structure expanded in the bladder, and the energy source is capable of directing ablative energy radially outwardly from the urethra, where the energy source will be moved in order to remove a pre-defined volume of prostatic tissue.
Claims12
A method for prostate tissue resection, said method comprising:
- positioning a catheter assembly having a shaft which carries an energy source within a lumen of a urethra;
- directing a high pressure liquid stream radially outwardly from the energy source toward a wall of the urethra within the prostate;
- and
- moving the shaft within the catheter assembly to axially oscillate the energy source relative to the urethra, wherein the liquid stream mechanically resects a pre-defined volume of tissue surrounding the lumen, wherein the position of the catheter assembly remains positioned in the urethra while the energy source is axially oscillated relative to the shaft.
1 more element
A method for debulking a prostate, said method comprising:
- axially oscillating and rotating a shaft within a catheter assembly disposed in a lumen of a urethra;
- stabilizing the catheter assembly in the urethra as the shaft is being axially oscillated;
- and
- directing a high pressure liquid stream radially outwardly from the shaft to mechanically resect tissue surrounding the urethra to debulk the prostate.
1 more element
Dependencies are inferred from the claim text.