An ultrasonic surgical tool comprises a substantially planar blade body having a pair of opposed lateral surfaces and a cutting edge. A shank integral on a distal side with the blade body is provided at a proximal side with a connector for operatively linking the blade to a source of ultrasonic mechanical vibrations. The blade body is provided in at least one of the lateral surfaces with a shallow recess which is nearly coextensive with that lateral surface. The blade body has a raised rim surrounding and defining the recess, the rim being narrow on the three sides between the recess and the cutting edge.

Surgical instruments for performing wedge-shaped osteotomies are disclosed herein. One surgical instrument includes a body with a distal end, a proximal end, a bottom surface, and a top surface including a slope extending upward and along a single plane from the distal end to the proximal end. The surgical instrument further includes multiple columns of cutting blades positioned on the top surface in which each of the cutting blades are spaced apart and extend vertically along at least a portion of the slope from the distal end to the proximal end. Another surgical instrument includes the cutting blades positioned in multiple rows of cutting blades on the top surface such that the multiple rows of cutting blades extend along the slope from the distal end to the proximal end and each cutting blade in the plurality of cutting blades extends horizontally across the top surface.

Surgical instruments for performing wedge-shaped osteotomies are disclosed herein. One surgical instrument includes a body including a distal end, a proximal end, and a top surface. The top surface includes a slope extending upward and along a single plane from the distal end to the proximal end. Multiple columns of cutting blades positioned on the top surface and each of the cutting blades includes a respective uniform height that extends vertically along at least a portion of the slope. Another surgical instrument includes a top surface including a flat plane. Multiple columns of cutting blades are positioned on the top surface and the columns of cutting blades are spaced apart and positioned on at least a portion of the top surface. Each cutting blade extends horizontally along the top surface and includes an increasing slope extending upward and along a single plane from the distal end to the proximal end.

A surgical sagittal saw for use with a complementary blade assembly that includes a static bar. The saw includes a head over which the blade assembly bar is seated. A coupling rod is able to be mounted to the head to move along the longitudinal axis of the rod. The coupling rod has a head that, as result of the longitudinal movement of the rod is moved towards and away from the head. A blade assembly may be disposed on the saw head adjacent the coupling rod. The coupling rod can be positioned in a run state so that the rod head abuts the bar of the blade assembly so as to hold the blade assembly to the saw head. Alternatively, the coupling rod can be repositioned in a load state the rod head is spaced from the saw head. This allows the blade assembly to be removed and replaced.

A number of improvements are provided relating to computer aided surgery utilizing an on tool tracking system. The various improvements relate generally to both the methods used during computer aided surgery and the devices used during such procedures. Other improvements relate to the structure of the tools used during a procedure and how the tools can be controlled using the OTT device. Still other improvements relate to methods of providing feedback during a procedure to improve either the efficiency or quality, or both, for a procedure including the rate of and type of data processed depending upon a CAS mode.

The invention relates to a surgical system for cutting an anatomical structure (F, T) of a patient according to at least one target plane defined in a coordinate system of the anatomical structure, comprising: (i) a robotic device (100) comprising: —an end effector (2), —an actuation unit (4) having at least three motorized degrees of freedom, configured for adjusting a position and orientation of the end effector (2) relative to each target plane, —a passive planar mechanism (24) connecting the terminal part (40) of the actuation unit (4) to the end effector (2); (ii) a tracker (203) rigidly attached to the end effector (2), (iii) a tracking unit (200) configured to determine in real time the pose of the end effector (2) with respect to the coordinate system of the anatomical structure, a control unit (300) configured to determine the pose of the end effector with respect to the target plane and to control the actuation unit so as to bring the cutting plane into alignment with the target plane.

A percussive massage device that includes a housing, an electrical source, a motor positioned in the housing, a switch for activating the motor, and a push rod assembly operatively connected to the motor and configured to reciprocate in response to activation of the motor. The housing includes first, second and third handle portions that cooperate to define a handle opening, wherein the first handle portion defines a first axis, the second handle portion defines a second axis and the third handle portion defines a third axis, and wherein the first, second and third axes cooperate to form a triangle.

The present invention relates to an implant system that comprises an implant, a handle configured to removably receive the implant, and, in some embodiments, a spacer tool configured to be mounted on the implant. In further embodiments, a k-wire is employed to guide the implant to a desired location. The handle has a hole for receiving a first portion of the implant. Using the handle to implant the implant, along with an associated spacer, provides a quick and convenient method for implanting the implant as described herein and in the associated drawings.

A measurement system and method for determining a depth of penetration of a working portion of a surgical instrument (e.g., a rotating drill bit in a bore). A first sensor outputs a first signal representative of a displacement of the leading edge of the drill bit in the bore. A second sensor outputs a second signal representative of a force applied to the leading edge of the drill bit. A processor outputs a third signal representative of the depth of penetration of the leading edge of the drill bit when the leading edge of the drill bit passes from a first medium having a first density to a second medium having a second density. The third signal is based on the first and second signals.

A surgical sagittal saw cartridge that includes a guide bar formed from an inner plate and opposed outer plates, the inner plate defining a head. The cartridge has a blade that is disposed against the head of the inner plate. The inner plate may comprise an inner tine and/or two opposed outer tines. The inner tine may be formed to define the head against which the blade is disposed. The outer tines extend distally so as to define a space between the outer tines in which the blade is seated.