A power tool for orthopedic surgery is provided, which can be coupled with an attachment having one or more first magnets mounted thereon, and include a power tool body including a power tool case, an attachment fastening portion connected to one end of the power tool body, a motor power transmitting portion protruding toward the attachment fastening portion and transmitting power to the attachment, a motor that drives the motor power transmitting portion, a first magnetic sensor portion including a first magnetic sensor capable of sensing a magnetic field strength or number of the one or more first magnets, a control portion that controls the motor to operate below a preset maximum rotational speed and maximum torque value according to the magnetic field strength or the number sensed by the first magnetic sensor, and a power supply that supplies power to the motor and the control portion.

A surgical device for pin insertion in a bone of a subject to aid in performing a bone cutting procedure is provided that includes a drive portion configured to drive a pin for insertion into the bone. The drive portion has a pin drive assembly with a shaft Q having a shaft proximal end. At least one magnet is associated with the shaft proximal end adapted for attraction and retention of the pin in the shaft proximal end. A spindle assembly is adapted to drive the shaft so as to rotate the pin into the bone to a degree of bone retention that overcomes the attraction and the retention of the pin in the shaft proximal end. An alignment system for surgical bone cutting procedures inclusive of the same is also provided along with a method for aligning a cutting guide on a subject's bone.

Disclosed herein is a tool assembly for use with an energy applicator having a shaft extending along an axis between a proximal end and a distal end. The tool assembly comprises a support structure to support the energy applicator, and a connector assembly arranged to engage and releasably lock the energy applicator to the support structure in a locked state. A drive system is coupled to the support structure and is configured to rotatably drive the shaft of the energy applicator about the axis. The drive system comprises a counterweighted clutch assembly.

An apparatus for penetrating bone and accessing bone marrow is provided. The apparatus may include a penetrator assembly and a powered drill. The penetrator assembly may include an inner penetrator having a stylet. The penetrator assembly may also include an outer penetrator having a hollow cannula and a luer lock attachment. The powered drill may include a housing enclosing a motor and a power supply and associated circuitry. The powered drill may also include a connector receptacle for receiving a penetrator assembly connector of the penetrator assembly. The powered drill may include a magnetic connection which releasably locks the penetrator assembly connector into place with the powered drill. The power supply may include a rechargeable battery within the housing for supplying power to the motor. A battery indicator may be provided to indicate a level of the battery.

A system including an instrument adapted to be manually supported and moved by a user. The instrument having a hand-held portion, a working portion movably coupled to the hand-held portion, and a plurality of actuators operatively coupled to the working portion for moving the working portion in a plurality of degrees of freedom relative to the hand-held portion. The instrument having a tracking device attached to the hand-held portion. The system including a navigation system for determining a position of the working portion relative to a target volume, and a control system in communication with the actuators to control the actuators to move the working portion relative to the hand-held portion such that the working portion autonomously follows a path defined in the control system to remove material of the target volume while the user maintains the hand-held portion in a gross position relative to the target volume.

A medical driver can include a handle coupled to a drive shaft. The drive shaft can couple with an access assembly for drilling into bone, and can be displaced relative to the handle from a rotationally restricted state, in which the drive shaft is rotationally restricted relative to the handle, to a drilling state, in which the drive shaft is freely rotatable in at least one direction relative to the handle. The medical driver can further include a mechanical energy-storage device coupled to the drive shaft that can automatically rotate the drive shaft relative to the handle upon transition of the drive shaft to the drilling state. A biasing element can be coupled to the handle and to the drive shaft to provide a bias to maintain the drive shaft in the rotationally restricted state. When distal movement of the drive shaft is opposed, application of a distally directed force on the handle in an amount sufficient to overcome the bias of the biasing element can transition the drive shaft to the drilling state to automatically permit the energy-storage device to rotate the drive shaft relative to the handle.

An articulating drill system is provided that includes a hand-held portion and a drill portion. At least two actuators are provided for controlling at least two axes of the drill portion. In some embodiments, a tool is provided with the drill portion and adapted to interact with patient tissue. The drill portion can be modified to include at least two rigid objects in communication with the actuators and attached to the drill portion. The system can be used to make any linear cut within a deviation of ±1.0 mm and ±1.0°, or better in patient tissue.

Disclosed is a system and method for operating an assembly, such as a powered drill assembly. The assembly may be operated to provide feedback to the user regarding a selected position and/or condition of the powered drill system. The powered drill system may be used to power or drive a selected tool, such as a resection or grinding tool.

Systems and methods are configured to treat a tissue by automatically linearly oscillating an instrument into a target site. A system may include a body having a length and configured to receive a portion of the instrument guide member having an exposed end and/or an instrument. The system may further include an actuator member disposed within the body and configured to linearly oscillate the instrument within the instrument guide member a fixed distance past the exposed end. The systems and methods can increase patient comfort while empowering clinicians by simplifying interventions for musculoskeletal disorders.

One aspect relates to an engine including a working system, having a first piston-cylinder system, comprising a working piston and a working cylinder. The working piston divides the working cylinder into a first working cylinder portion and a second working cylinder portion, a valve system, having a first valve connection and a valve element. The valve system and the working system are connected in a gas conducting manner, the first valve connection can be connected to a negative pressure source, and the valve element is movably arranged in the valve system such that, in a first valve position, the valve element connects the first valve connection to the first working cylinder portion, and, in a second valve position, connects the first valve connection to the second working cylinder portion in a gas conducting manner.