An ultrasonic transducer for an ultrasonic surgical instrument includes a proximal hub, a piezoelectric rod array including a plurality of piezoelectric rods spaced-apart from one another and disposed in parallel and longitudinally-extending orientation relative to one another, and a distal horn including a distal connector configured to engage a waveguide. The proximal hub and the distal horn are configured to engage one another to retain the piezoelectric rod array therebetween under compression.

A method includes attaching one or more heat exchangers to one or more of a distal handle end and a proximal handle end of a lithotripter, the lithotripter including a handle, the handle having a handle distal end and a handle proximal end; a probe housed within the handle, the probe having a probe distal end and a probe proximal end; a passageway extending through the handle at least partially containing the probe; and a shielding insert contained within the passageway; wherein the probe, the passageway, and the shielding insert are contained within a central lumen of a driver resource; and performing a sterilization procedure on the surgical device; wherein the one or more heat exchangers collect and transfer heat at least through a full length of the handle, particularly to the lumen contained within the handle.

A device for shock wave production to treat a patient's body comprises a base with a condenser as power supply, an applicator having a pad, at least one piezo-element configured to generate a shock wave in response to a pulse of electric current having a pulse width, an acoustic lens configured to focus the shock wave, and a coil configured to increase the pulse width of the pulse of electric current.

The invention relates to a holding device for a lithotripsy device for fragmenting calculi, the holding device comprising a housing for accommodating assemblies and/or components, and a sonotrode being connectable to the distal end of the housing, arranged within the housing there being an acceleration tube with a longitudinal center axis, a cavity, and with a movable projectile within the cavity for shock excitation of the sonotrode, a proximal-side abutment element arranged at the proximal end, and a distal-side abutment element arranged at the distal end of the acceleration tube, and the holding device being assignable a force generation apparatus for generating a force for moving the projectile back and/or forth, and a vibration excitation apparatus for exciting vibrations of the sonotrode and a vibration damping apparatus being arranged in the housing, wherein the vibration damping apparatus comprises at least one mass and at least two spring elements with two ends each, the at least two spring elements contacting the mass with their respective one end and at least one spring element, with its second end, contacting an inner surface of the housing. The invention also relates to a lithotripsy device.

The invention relates to a holding device for a lithotripsy device for fragmenting calculi, the holding device comprising a housing with a distal end and a proximal end and a sonotrode being connectable to the distal end, arranged within the housing there being an acceleration tube with a longitudinal center axis, a cavity, a proximal end, and a distal end, and with a movable projectile within the cavity for shock excitation of the sonotrode, a proximal-side abutment element arranged at the proximal end, and a distal-side abutment element arranged at the distal end of the acceleration tube, and the holding device being assignable a force generation apparatus for generating a force for moving the projectile back and/or forth between the proximal-side abutment element and the distal-side abutment element, and a vibration excitation apparatus for exciting vibrations of the sonotrode being arranged in the housing, wherein the holding device comprises a vibration compensation apparatus with at least one mass and at least one spring element such that the vibration compensation apparatus makes it possible to decouple the acceleration tube from the excitation of vibrations by means of the vibration excitation apparatus. The invention also relates to a lithotripsy device for fragmenting calculi.

A lithotripter includes a handle with a distal end and a proximal end, a driver resource contained within the handle, the driver resource having a driver resource distal end and a driver resource proximal end, and a probe housed within the handle, the probe having a probe distal end and a probe proximal end, the probe distal end terminating at the distal end of the apparatus at a point distal from the handle distal end, the probe proximal end terminating proximal to the driver resource proximal end. The lithotripter further includes a shielding insert surrounding at least a portion of the probe, the shielding insert having a shielding insert proximal end and a shielding insert distal end, the shielding insert proximal end terminating proximal to the proximal end of the driver resource, and the shielding insert distal end terminating distal to the distal end of the driver resource, the probe proximal end being contained within the handle.

A surgical instrument includes a transducer assembly with a housing having a conduit section and a base portion. A fluid passageway is defined through the conduit and base portion, an ultrasonic transducer including a plurality of piezoelectric elements and a plurality of electrodes are arranged in a stack configuration, where an electrode is located between each pair of piezoelectric elements. A first borehole is defined through the ultrasonic transducer and an end mass having a second borehole defined therethrough. A surface of the end mass is positioned adjacent a first end of the ultrasonic transducer, the end mass is configured to engage with the housing, and the conduit section of the housing is configured to pass through the second borehole of the end mass. The end mass is configured to compress the ultrasonic transducer against a surface of the housing when the end mass is engaged with the housing.

A surgical instrument includes a transducer assembly with a housing having a conduit section and a base portion. A fluid passageway is defined through the conduit and base portion, an ultrasonic transducer including a plurality of piezoelectric elements and a plurality of electrodes are arranged in a stack configuration, where an electrode is located between each pair of piezoelectric elements. A first borehole is defined through the ultrasonic transducer and an end mass having a second borehole defined therethrough. A surface of the end mass is positioned adjacent a first end of the ultrasonic transducer, the end mass is configured to engage with the housing, and the conduit section of the housing is configured to pass through the second borehole of the end mass. The end mass is configured to compress the ultrasonic transducer against a surface of the housing when the end mass is engaged with the housing.

An apparatus for operating on tissue includes a body, a shaft, an ultrasonic blade, and an acoustic assembly. The shaft extends distally from the body. The blade is disposed at the distal end of the shaft. The acoustic assembly comprises an acoustic waveguide coupled with the blade, a piezoelectric transducer element, a fastener, and a coupling member. The transducer element defines an inner diameter surface and an outer diameter surface. The fastener is configured to secure the transducer element relative to the waveguide. The coupling member is configured to provide electrical continuity between the fastener and the inner diameter surface of the transducer element. The outer diameter surface of the transducer element includes an annular recess. Another coupling member is configured to provide electrical continuity between the annular recess of the piezoelectric transducer element and a power source while permitting the piezoelectric transducer element to rotate relative to the body.

A device for shock wave production to treat a patient's body comprises a base with a condenser as power supply, an applicator having a pad, at least one piezo-element configured to generate a shock wave in response to a pulse of electric current having a pulse width, an acoustic lens configured to focus the shock wave, and a coil configured to increase the pulse width of the pulse of electric current.