Method for crushing stones in urinary bladder and instrument for same

Claim 3

An instrument for crushing stones in the urinary bladder in combination with an operative cystoscope having an illuminating lamp with power supply and comprising elongated lithotrites adapted for being introduced into the urinary bladder through said cystoscope to contact the stone to be crushed; one of said lithotrites being capable of transmitting ultrasonic oscillations for crushing the stone; the other lithotrite having coaxial electrodes and separating insulating material, drive means for generation and conversion of electrical oscillations into mechanical ultrasonic oscillations and their transmission to the first lithotrite; an electrical pulser means connected to said other lithotrite for producing electrical discharges between end faces of said coaxial electrodes in the liquid medium of the urinary bladder to cause the formation of hydraulic impacts crushing the stones; remote control means for said drive and electric pulser means, said remote control means including a selector switch, an operating time register for each of said drive means and said electric pulser means and means for turning the registers on and off successively and a grounding circuit connected to the power supply circuits of said cystoscope lamp and to said means for turning the registers on and off.

Claim 4

An instrument for crushing stones in the urinary bladder in combination with an operative cystoscope having an illuminating lamp with power supply and comprising elongated lithotrites adapted for being introduced into the urinary bladder through said cystoscope to contact the stone to be crushed; one of said lithotrites being capable of transmitting ultrasonic oscillations for crushing the stone; the other lithotrite having coaxial electrodes and separating insulating material, drive means for generation and conversion of electrical oscillations into mechanical ultrasonic oscillations and their transmission to the first lithotrite; an electrical pulser means connected to said other lithotrite for producing electrical discharges between end faces of said coaxial electrodes in the liquid medium of the urinary bladder to cause the formation of hydraulic impacts crushing the stones; remote control means for said drive and electric pulser means, said remote control means including a selector switch, an operating time register for each of said drive means and said electric pulser means and means for turning the registers on and off successively and a grounding circuit connected to the power supply circuits of said cystoscope lamp and to said means for turning the registers on and off.

Claim 5

An instrument for crushing stones in the urinary bladder in combination with an operative cystoscope having an illuminating lamp with power supply and comprising two elongated lithotrites adapted for being introduced alternatively into the urinary bladder through said cystoscope to contact the stone to be crushed; the first lithotrite including at one end thereof a working element in the form of a hollow cylinder with a bypass opening, and a protective waterproof sheath on said cylinder capable of transmitting an ultrasonic vibration which crushes the stone, the second lithotrite includinG coaxial electrodes insulated the entire length up to the end face surfaces thereof by an insulation material with substantial electrical and impact strength; a drive means for imparting to the first lithotrite mechanical strength ultrasonic oscillations, said drive means comprising a generator of electric oscillations, a converter of electric oscillations into ultrasonic mechanical oscillations connected in series with said generator, a concentrator of mechanical oscillations connected to said converter and to the first lithotrite; an electric pulser means connected to the second lithotrite for producing electrical discharges between the end faces of said coaxial electrodes in the liquid medium of the urinary bladder to cause the formation of hydraulic impacts for crushing of the stone; remote control means for said drive means and said electrical pulser means, said remote control means including a selector switch, an operating time register for each of said drive means and said electrical pulser and means for turning said registers on and off successively, and a grounding circuit connected to the power supply circuits of said cystoscope lamp and to said means for turning said registers on and off.

Claim 6

An instrument for crushing stones in the urinary bladder in combination with an operative cystoscope having an illuminating lamp with power supply and comprising two elongated lithotrites adapted for being introduced alternatively into the urinary bladder through said cystoscope to contact the stone to be crushed; the first lithotrite including at one end thereof a working element in the form of a hollow cylinder with a bypass opening, and a protective waterproof sheath on said cylinder capable of transmitting an ultrasonic vibration which crushes the stone, the second lithotrite includinG coaxial electrodes insulated the entire length up to the end face surfaces thereof by an insulation material with substantial electrical and impact strength; a drive means for imparting to the first lithotrite mechanical strength ultrasonic oscillations, said drive means comprising a generator of electric oscillations, a converter of electric oscillations into ultrasonic mechanical oscillations connected in series with said generator, a concentrator of mechanical oscillations connected to said converter and to the first lithotrite; an electric pulser means connected to the second lithotrite for producing electrical discharges between the end faces of said coaxial electrodes in the liquid medium of the urinary bladder to cause the formation of hydraulic impacts for crushing of the stone; remote control means for said drive means and said electrical pulser means, said remote control means including a selector switch, an operating time register for each of said drive means and said electrical pulser and means for turning said registers on and off successively, and a grounding circuit connected to the power supply circuits of said cystoscope lamp and to said means for turning said registers on and off.

Claim 7

An instrument for crushing stones in the urinary bladder in combination with an operative cystoscope having an illuminating lamp with power supply, and comprising two elongated lithotrites adapted for being introduced alternatively into the urinary bladder through said cystoscope to contact the stone to be crushed; the first lithotrite including at an end thereof a working element in the form of a cylinder with a bypass opening, and a protective waterproof sheath capable of transmitting ultrasonic vibratory impacts for crushing the stone, the second lithotrite having coaxial electrodes insulated the entire length thereof up to the end face surfaces by insulation material with high electric and impact strength; a drive means for imparting mechanical ultrasonic oscillations to the first lithotrite, said drive means comprising a generator of electrical oscillations, a converter of electrical oscillations into mechanical ultrasonic oscillations connected in series with said generator, a concentrator of mechanical oscillations connected to the first lithotrite by means of a fusible welding alloy; an electrical electrical pulser means comprising a series-connected rectifier, an accumulating means with capacitors and at least two pulse shaping dischargers connected to said electrodes of the second lithotrite for producing between their end faces electric discharges in the liquid medium of the urinary bladder to cause the formation of hydraulic impacts for crushing the stone; remote control means for said drive means and said electrical pulser means, said remote control means including a selector switch, an operating time register of each of said drive means and said electrical pulser means and means for turning said registers on and off successively; and a grounding circuit connected to the power supply circuits of said cystoscope lamp and to said means for turning said registers on and off, said grounding circuit including a hand screw having two stems insulated from each other and affixed on a grounded collecting bar.

Claim 8

An instrument for crushing stones in the urinary bladder in combination with an operative cystoscope having an illuminating lamp with power supply, and comprising two elongated lithotrites adapted for being introduced alternatively into the urinary bladder through said cystoscope to contact the stone to be crushed; the first lithotrite including at an end thereof a working element in the form of a cylinder with a bypass opening, and a protective waterproof sheath capable of transmitting ultrasonic vibratory impacts for crushing the stone, the second lithotrite having coaxial electrodes insulated the entire length thereof up to the end face surfaces by insulation material with high electric and impact strength; a drive means for imparting mechanical ultrasonic oscillations to the first lithotrite, said drive means comprising a generator of electrical oscillations, a converter of electrical oscillations into mechanical ultrasonic oscillations connected in series with said generator, a concentrator of mechanical oscillations connected to the first lithotrite by means of a fusible welding alloy; an electrical electrical pulser means comprising a series-connected rectifier, an accumulating means with capacitors and at least two pulse shaping dischargers connected to said electrodes of the second lithotrite for producing between their end faces electric discharges in the liquid medium of the urinary bladder to cause the formation of hydraulic impacts for crushing the stone; remote control means for said drive means and said electrical pulser means, said remote control means including a selector switch, an operating time register of each of said drive means and said electrical pulser means and means for turning said registers on and off successively; and a grounding circuit connected to the power supply circuits of said cystoscope lamp and to said means for turning said registers on and off, said grounding circuit including a hand screw having two stems insulated from each other and affixed on a grounded collecting bar.