Instrumentation and assembly for arthroscopic elbow surgery which includes a humeral component. The humeral component is installed in a trough formed in the humeral condyle. The trough may be formed by using a plurality of drill pins and a plurality of corresponding cutters (and optionally a template). The two drill pins are passed through the template and drilled into the humerus, and cutters are advanced over the corresponding drill pins to form the trough. The humeral component may be employed in conjunction with an ulnar implant.

The handpiece includes; an outer housing of a bar shape; a cylindrical core inserted into the outer housing and having an air hole and a water hole; pipes respective inserted into the air hole and the water hole of the core; a rotor made with a cylindrical magnetic material and inserted into the core; cylindrical support rings forcedly fit to both sides of transfer shafts of the rotor; a pair of bearings respectively disposed at the front side and the rear side of the support rings; a coupling disposed in front of the rotor; a front housing joined to the front of the outer housing; a front cap disposed at the rear of the core; a rear cap disposed at the rear of the front cap and having a power supply terminal disposed at one side thereof; and a rear housing joined to the rear of the outer housing.

A portable and passive safety intraosseous device to allow for direct introduction of medications, etc., within the intermedullary space of a subject patient's bone or, if needed, the removal of certain substances from such a subject patient's bone. Such a device permits direct drilling and placement of a cannula within the subject bone with access external to the subject patient's skin, permitting, as well, connection of a tube for such introduction/removal purposes. The ability to provide a passive safety unit allows for facilitated utilization in, for instance, emergency situations with the entire device provided for utilization thereof. The device includes a drilling component with a permanently attached stylet and a removable cannula, a power supply for a single drilling operation, a mechanism to draw the stylet back into the drill component after use and disengagement from the cannula, and an automatic closure that activates with the separation of the cannula.

An intraosseous access system to access a medullary cavity includes a driver including an access assembly, a motor, and an energy source. The intraosseous access system further includes a sensor configured to detect a first input from one of the motor or the energy source. The intraosseous access system further including a processing unit, communicatively coupled with the sensor, configured to receive the first input from the sensor, and determine access to a medullary cavity. The processing unit can then modify operation of one of the motor and the energy source to automatically stop operation of the system and prevent backwalling.

An orthopaedic reamer connector includes a holder section shaped to allow for connection of an orthopaedic reamer, the holder section including a connection surface and two pairs of holders associated with the connection surface, each of the two pairs of holders having a first holder and a second holder that forms an acute angle relative to the first holder, the first holders being opposed to each other by about 180 degrees and the second holders being opposed to each other by about 180 degrees; and a stop section mechanically interlocked with the holder section so as to prevent relative rotation therebetween and including a pair of stops associated with each of the two pairs of holders, each of the pair of stops having a first stop associated with the first holder and a second stop associated with the second holder.

Cutting instruments and related methods are disclosed herein in which the diameter of the retrograde cutting blade can be adjusted to any of a plurality of diameter settings, allowing the same instrument to be used to form holes of different diameters. The limit diameter can be preset such that, during the cutting operation, the user need not be concerned with selecting the appropriate diameter, but rather can simply deploy the cutting blade until the preset limit is reached. Cutting instruments are also disclosed in which the retrograde cutting blade is distinct from the forward drilling tip and protected within a cavity formed in the body of the instrument when not in use, as are instruments in which the user is given visual and/or tactile feedback to confirm desired positioning of the cutting blade.

A swivel knuckle assembly for interconnecting a motor and a supply line. The knuckle assembly may include a bearing member to reduce a coefficient of friction. A locking mechanism is disclosed to connect members of the knuckle assembly.

A method and system for computer assisted orthopedic feedback of at least one surgical object relative a pre-operative plan are disclosed. The pre-operative plan includes a virtual object, which is the virtual representation of the surgical object, and a virtual structure, which is the virtual representation of the patient structure. The method comprises providing the pre-operative plan including planned position and orientation of the virtual object relative to of the virtual structure; obtaining the position of the patient structure based on a surface of the patient structure using a surgical navigation system; obtaining the position of the surgical object using the surgical navigation system; registering the patient structure to the virtual structure and the surgical object to the virtual object; tracking a current position and orientation of the surgical object using the surgical navigation system; and providing feedback of a current position and orientation of the surgical object relative to the planned position and orientation of the virtual object based on the tracked current position and orientation of the surgical object.

A handle assembly for use in conjunction with a surgical cutting device is provided. The handle assembly can generally include two, detachable pieces or housings. The first housing can include electrical and mechanical components for driving a cutting assembly, such as a motor, while the second housing can include a fluid flow path that allows fluid to flow from the surgical site to a location outside of the cutting device. At least a portion of the fluid flow path can extend substantially adjacent to at least a portion of one or more components used to drive the cutting assembly to help manage the heat output of the components. The fluid flow path allows the fluid to exit the device without coming into contact with components like a motor, while also helping to cool the handle assembly. Systems and methods for cutting tissue are also provided.

A surgical cutting tool for use with a handpiece having a motor is disclosed. The surgical cutting tool comprises a nose tube defining a lumen between proximal and distal ends. A bushing is coupled to the nose tube at the distal end and is disposed at least partially within the lumen. The bushing defines a second lumen configured to receive a region of a driveshaft that extends past the distal end of the nose tube. A bur defines a recess sized to receive at least a portion of the bushing within the recess. The bur is configured to be coupled to the driveshaft within the recess.