Method of removing concretions from the ureter

Claim 1

A method for removing concretions from the ureter with the use of a disintegrating instrument and an extractor having a holder with wire arms which form a stone-catching basket which is provided with a guiding rod having a rounded body attached to its end, said method comprising the steps of: inserting said extractor with said wire arms and said guiding rod, having said rounded body attached to its end, into the ureter via the urethra and the bladder by means of a cystoscope until said wire arms contact the concretion; capturing the concretion in said stone-catching basket by turning said wire arms with the purpose of enveloping the concretion; passing the concretion from the ureter into the bladder by removing said extractor until said stone-catching basket with the concretion captured therein enters the bladder while letting said guiding rod of said wire arms remain in the ureter meatus; inserting said disintegrating instrument into the bladder until one end of said instrument comes into contact with the concretion; disintegrating the concretion in the bladder by means of said disintegrating instrument while the concretion is being held suspended by said wire arms; withdrawing said disintegrating instrument from the bladder; closing said stone-catching basket of said extractor by bringing said wire arms together; inserting said closed stone-catching basket of said extractor into the ureter meatus; opening said stone-catching basket by moving said wire arms apart; inserting a catheter into the ureter to a position proximate the location where said concretion was previously captured; withdrawing said extractor from the ureter and the bladder through said cystoscope; withdrawing said cystoscope from the bladder and the urethra; withdrawing said catheter from the ureter through the urethra following the catherterization after the mucous membrane of he ureteral walls has healed; and removing concretion fragments by flushing the bladder.

Claim 2

A method for removing concretions from the ureter with the use of a disintegrating instrument and an extractor having a holder with wire arms which form a stone-catching basket which is provided with a guiding rod having a rounded body attached to its end, said method comprising the steps of: inserting said extractor with said wire arms and said guiding rod, having said rounded body attached to its end, into the ureter via the urethra and the bladder by means of a cystoscope until said wire arms contact the concretion; capturing the concretion in said stone-catching basket by turning said wire arms with the purpose of enveloping the concretion; passing the concretion from the ureter into the bladder by removing said extractor until said stone-catching basket with the concretion captured therein enters the bladder while letting said guiding rod of said wire arms remain in the ureter meatus; inserting said disintegrating instrument into the bladder until one end of said instrument comes into contact with the concretion; disintegrating the concretion in the bladder by means of said disintegrating instrument while the concretion is being held suspended by said wire arms; withdrawing said disintegrating instrument from the bladder; closing said stone-catching basket of said extractor by bringing said wire arms together; inserting said closed stone-catching basket of said extractor into the ureter meatus; opening said stone-catching basket by moving said wire arms apart; inserting a catheter into the ureter to a position proximate the location where said concretion was previously captured; withdrawing said extractor from the ureter and the bladder through said cystoscope; withdrawing said cystoscope from the bladder and the urethra; withdrawing said catheter from the ureter through the urethra following the catherterization after the mucous membrane of he ureteral walls has healed; and removing concretion fragments by flushing the bladder.