A motor-driven orthopedic impacting tool is provided for orthopedic impacting in the hips, knees, shoulders and the like. The tool is capable of holding a broach, chisel, or other end effector, which when gently tapped in a cavity with controlled percussive impacts, can expand the size or volume of an opening of the cavity or facilitate removal of the broach, implant, or other surgical implement from the opening. A stored-energy drive mechanism stores potential energy and then releases it to launch a launched mass or striker to communicate a striking force to an adapter in either a forward or reverse direction. The tool may further include a combination anvil and adapter and an energy adjustment mechanism to adjust the striking force the launched mass delivers to the adapter in accordance with a patient profile.

A method of fusing a first bone and a second bone. An abrading and harvesting device is provided that includes a needle portion having a sharpened tip. The needle portion has a central bore extending therethrough. The needle portion has a proximal end and a distal end. The sharpened tip is attached to the distal end of the needle portion. A probe is provided having an unsharpened tip portion. The probe is extended between the first bone and the second bone. The needle portion is extended over the probe by passing the proximal end of the probe through the central bore. The first bone and the second bone are abraded with the sharpened tip to cause bleeding bone to be exposed on the first bone and the second bone. A device is placed along a path formed by the needle portion between the first bone and the second bone.

A surgical drill for use with a drill bit. The drill includes a handpiece with a motor and a brake mechanism. The brake mechanism is a sliding rack adjacent a first end and a second end with a stop adjacent the drill bit. An actuator is mounted to the handpiece and a plunger is coupled to the actuator. A sensor asserts a signal when the drill bit penetrates bone. When the sensor asserts the signal indicting the drill bit penetrated bone, the actuator moves the plunger into engagement with the rack to prevent further insertion of the drill bit.

This invention is directed to devices and methods for surgical access to the body, and particularly to surgical drills for accessing a body cavity and methods therefor. In general, a surgical drill is utilized to gain access to a body cavity or part, such as where bone and/or other hard tissues need to be pierced. For example, the skull and other bones with internal cavities may require surgical access to treat body portions contained within the bone. Further in general, it may be generally desirable to create access holes or openings which may be as small as possible and at a particular direction and/or trajectory. In this manner the access hole or opening may be utilized to guide another device, such as a treatment device, to a particular target along the established trajectory of the access hole or opening.

A surgical system comprises a handpiece and a battery. The handpiece includes a body, a handpiece controller, and a handpiece connector with a first coupler, a handpiece voltage terminal, and a handpiece data terminal. The battery has a housing, a cell, a battery controller, and a battery connector with a second coupler to rotatably engage the first coupler, a battery voltage terminal, and a battery data terminal. The second coupler receives the first coupler at an initial radial position and permits rotation to a first secured radial position and a second secured radial position. Rotation from the initial radial position to the first secured radial position engages the voltage terminals to transmit power between the cell and the handpiece controller, and rotation to the second secured radial position engages the data terminals to communicate data between the controllers while maintaining engagement between the voltage terminals.

Devices and methods used to obtain core tissue samples are disclosed. The devices may be configured to drill into cortical bone and saw a hole into a bone lesion and/or bone marrow while obtaining the core tissue sample. The devices can include a motor and a clutch configured to rotate a trocar having a tip configured for drilling and an outer coax cannula having a trephine tip configured for sawing. The core tissue sample may be received within an inner cannula as an intermediate cannula cuts a hole in the bone lesion and/or bone marrow. The devices can include a spacer.

A rotary surgical tool is provided and has an effector or cutter that is usable to remove or otherwise modify tissue such as bone. The tool includes a motor coupled to the effector with a single piece shaft that is integral with the effector and also serves as the motor output shaft.

A handheld surgical instrument includes a motor that transmits rotational movement to a drill bit of the handheld surgical instrument. The drill bit extends through a depth measurement module with a depth measurement extension, and a cannula, which extends forward from the drill to measure bore depth. The depth measurement extension is moveably mounted to the drill so as to extend into the rotor bore of the motor. As the drill advances forward, the depth measurement extension remains static. As a result of the advancement of the drill, the rotor extends over the proximal end of the depth measurement extension. A controller is configured to determine a breakthrough time and a breakthrough displacement of the drill bit based on displacement data and derived signals. The controller is further configured to determine a proper length of a screw to be used in a fixation surgical procedure based on the displacement data.

A surgical cutting tool includes an outer tube extending longitudinally between proximal and distal ends. The outer tube includes an inner surface defining a lumen therethrough. The surgical cutting tool further includes a flexible driveshaft including an inner tube rotatably disposed in the lumen and extending in a longitudinal direction. The driveshaft may include at least two torsion sections spaced from one another longitudinally along the inner tube. The torsion sections each have at least one channel extending through the inner tube. The driveshaft further includes a bearing section disposed longitudinally between the torsion sections. The channels are configured to collapse under rotational load in response to transmission of torque as the driveshaft rotates such that the torsion sections are spaced apart from the inner surface of the outer tube to a greater extent than the bearing section for reducing friction between the inner tube and the outer tube.

A medical device system configured to dynamically switch motor control protocols while a motor within a handheld device is operating to increase efficiency of the motor operation and to provide improved reliability and performance is disclosed. In at least one embodiment, the medical device system may be configured to dynamically switch motor control protocols while the motor is operating based on input from one or more sensors configured to monitor a motor, including, but not limited to, monitoring a magnetic flux field of the motor or monitoring current to the motor. The medical device system may dynamically switch motor control protocols between motor control protocols, including, but not limited to, Six-Step Commutation, Hall-Based Sinusoidal Commutation and Field Oriented Commutation.