An ultrasonic probe includes a first bent extending portion provided on a distal side with respect to a narrowed portion and extending in such a state as to bend toward a first crossing direction side crossing a longitudinal axis, and a second bent extending portion continuous with the distal side of the first bent extending portion and extending in such a state as to bend toward second crossing direction side opposite to the first crossing direction. The second bent extending portion includes a blade portion, and in a projection seen from the distal side, the first bent extending portion and the second bent extending portion are located within a minimum inside diameter of a sheath.

The Vertebra Pick Device represents a new instrument to bore pilot holes in vertebra pedicles while imaging the operation with an integrated endoscope. The pilot holes are bored to provide entry points for pedicle screws that serve as anchor points for spine stabilizing rods to treat several spine conditions. The device consists of a metal body that terminates in a tapered incision tip, an endoscope that runs inside said metal body, a handle to drive the device into pedicle boney tissue and a fiber optics bundle assembly that enters the device handle and is used to connect to imaging, illumination, irrigation and suction devices to enable the endoscopic functions of the device. The fiber optics bundle assembly connects to an imaging camera that provides an electrical signal to a monitor to view the operation in real time.

Disclosed is a surgical instrument that includes a battery assembly, a handle assembly, and a shaft assembly where the battery assembly and the shaft assembly are configured to mechanically and electrically connect to the handle assembly. The battery assembly includes a control circuit configured to generate a digital waveform. The handle assembly includes a first stage circuit configured to receive the digital waveform, convert the digital waveform into an analog waveform, and amplify the analog waveform. The shaft assembly includes a second stage circuit coupled to the first stage circuit to receive, amplify, and apply the analog waveform to a load.

A surgical instrument is disclosed. The surgical instrument includes a handle assembly that includes a handle housing. The handle housing comprises two asymmetric portions, a first portion configured to support mechanical and electrical components of the surgical instrument and a second portion comprising a removable cover.

An ultrasonic surgical instrument includes an ultrasonic transducer configured to vibrate ultrasonically, a probe configured to treat a living tissue by the ultrasonic vibration, a detector configured to detect a pressing force of the probe against the living tissue, a memory configured to store a predetermined value related to a pressing force in accordance with the living tissue, a comparing section configured to compare the pressing force detected by the detector with the predetermined value stored in the memory, and a notification section configured to perform a notification in response to a comparison result obtained by the comparing section.

A surgical instrument includes an end effector with a surface made of amorphous titanium oxide, and a film resin covering the surface and chemically bonding to the surface.

Disclosed is a method of controlling a modular battery powered handheld surgical instrument. The surgical instrument including a battery, a user input sensor, a controller, a radio frequency (RF) drive circuit, an ultrasonic transducer, ultrasonic transducer drive circuit, and an end effector. The end effector including an electrode electrically coupled to RF drive circuit, an ultrasonic blade acoustically coupled to the ultrasonic transducer, and a sensor to measure tissue parameters. The method includes applying an RF current drive signal to the electrode by the RF drive circuit; applying an ultrasonic drive signal to the ultrasonic transducer by the ultrasonic transducer drive circuit to acoustically excite the ultrasonic blade; controlling intensity, wave shape, and/or frequency of the RF current drive signal and the ultrasonic drive signal on a sensed measure of a tissue or user parameter.

Provided is a system including a surgical instrument comprising a handle assembly comprising a handle; a shaft assembly coupled to the handle assembly; and a flexible circuit. The handle assembly comprises a proximal portion of the flexible circuit and the shaft assembly comprises a distal portion of the flexible circuit; the shaft assembly further comprising: an exterior shaft positioned around the distal portion of the flexible circuit and configured to change position while a sub-portion of the distal portion of the flexible circuit remains stationary; and shaft control electronics comprising a stationary portion and a non-stationary portion, the stationary portion coupled to the distal portion of the flexible circuit and the non-stationary portion coupled to the exterior shaft; wherein the stationary portion of the shaft control electronics is configured to measure a distance to the non-stationary portion of the shaft control electronics as the exterior shaft changes position.

A surgical instrument comprises a shaft assembly comprising a shaft and an end effector coupled to a distal end of the shaft; a handle assembly coupled to a proximal end of the shaft; a battery assembly coupled to the handle assembly; a driver configured to drive movement of at least one component of the surgical instrument; a motor powered by the battery assembly and configured to actuate the driver using an output of the motor; and a controller for the motor, configured to perform a limiting operation to the output of the motor when a limiting condition is met, wherein the limiting condition is determined based at least in part on a tissue characteristic.

A lithotripter is provided for fragmenting a stone inside a patient's body. In one form, the lithotripter includes a motor having at least two modes of operation and is configured to produce first and second waveforms. A wave guide shaft is configured to transmit the first and second waveforms to the stone. In one form, at least one of the first and second waveforms is provided to the stone at a frequency that is about equal to a natural frequency of the stone. In a variation, the lithotripter may include an ultrasonic driver configured to produce an ultrasonic frequency waveform and a sonic driver configured to produce a sonic frequency waveform. The sonic driver is mechanically coupled to the ultrasonic driver. The ultrasonic driver and the sonic driver may be disposed within a driver housing. In another variation, the lithotripter may include a brushless DC motor.