A tissue cutting probe includes an outer sleeve assembly, an inner sleeve assembly, a burr and an electrode. Each of the inner and outer sleeves has a proximal end, a distal end, and central passage extending therebetween. The inner sleeve assembly is coaxially and rotatably received in the central passage of the outer sleeve assembly, and the burr has a plurality of metal cutting edges carried on a first side of the distal end of the inner sleeve assembly. The electrode is carried a second side of the distal end of the inner sleeve assembly.

A robotic surgery method for cutting a bone of a patient includes characterizing the geometry and positioning of the bone and manually moving a handheld manipulator, the handheld manipulator operatively coupled to a bone cutting tool having an end effector portion, to cut a portion of the bone with the end effector portion. The handheld manipulator further comprises a manipulator housing and an actuator assembly movably coupled between the manipulator housing and the bone cutting tool. The method further includes causing the actuator assembly to automatically move relative to the manipulator housing to maintain the end effector portion of the tool within a desired bone cutting envelope in response to movement of the manipulator housing relative to the bone.

Measurement of a leading edge of an instrument passing from a first medium having a first density to a second medium having a second density using a displacement sensor alone. In particular, a displacement signal, a velocity signal, and an acceleration signal measured from or derived from a displacement sensor are analyzed to determine when the leading edge of the instrument passes from the first material to the second material as the leading edge of the instrument is advanced relative to the material. For instance, the measurement may be used to output an occurrence signal that indicates to a user that the instrument has passed from the first medium to the second medium. Additionally, a length measurement of the path of the instrument when passing from the first medium to the second medium may be recorded, and/or the instrument may be controlled (e.g., the instrument may be stopped).

A handheld surgical instrument comprising an energy storage element, wherein the energy storage element is a spring coupled to the impacting mechanism, an impacting mechanism has a tip configured to impact a bone, wherein the tip includes a tapered point, a power transmission mechanism is configured to transmit energy from the energy storage element to the impacting mechanism, wherein the power transmission mechanism includes a semi-flexible metal wire guided by a hollow shaft, wherein the hollow shaft includes a distal end, the semi-flexible metal wire is includes a bend toward the distal end, a trigger mechanism is configured to release energy from the energy storage element, wherein the bend includes an angle between 14 degrees and 46 degrees, wherein the trigger mechanism includes a manual lever which, when actuated, simultaneously retracts the tip and charges the energy storage element.

Systems and methods related to use of a measurement system in conjunction with a powered instrument for determination of the placement of a tool portion relative to the anatomy of a patient utilizing the powered instrument. The measurement system may include a displacement sensor that indicates the relative displacement of the tool portion relative to the anatomy. The system may also include a sensor for monitoring a tool drive signal representative of a tool drive parameter that is characteristic of the tool portion acting on the anatomy. The tool drive signal may be analyzed relative to a given amount of axial displacement as measured by the displacement sensor to avoid false indications of placement based on noise and or other artifacts in the tool drive signal that may result from characteristics of the anatomy and/or operational behaviors of the surgeon utilizing the instrument.

Drilling devices, systems, kits and methods for drilling cartilage defects are disclosed. A system includes a handle device having an adjustable shaft collar rotatable to adjust a drill set distance between the adjustable shaft collar and the handle. The handle device can include a distal drill guide extending from the handle at an end opposite the adjustable shaft collar. The system includes a drill collar attachable to a drill bit and configured to remain stationary along a length of the drill bit once attached. The system includes a rotatable disk positionable between the adjustable shaft collar and the drill collar. The rotatable disk can include a central hole sized to accept the drill bit.

A robotic surgical system may be used to perform a surgical procedure. Providing guidance for the robotic surgical system includes integrating a Point of View (PoV) surgical drill with a camera to capture a PoV image of a surgical area of a subject patient; displaying an image of the surgical area, based on a viewing angle of the PoV surgical drill, thus enabling the surgeon to operate on the surgical area using the PoV surgical drill. The PoV surgical drill operates based on the surgeon's control of a guidance drill. The content of the images may change based on a change in the viewing angle of the PoV surgical drill.

A medical device, a cooling-fluid/rinsing-fluid hose, and a method for using a medical device. The medical device includes a handpiece with an interior enclosed by a handpiece housing, preferably for receiving a drive. The medical device also has an effector arranged on or coupleable to the handpiece and a supply device for supplying cooling fluid and/or rinsing fluid to the effector. The supply device includes a guide tube or guide cannula that passes through the interior in the handpiece longitudinal direction and is rigidly connected to the handpiece. The guide tube or guide cannula, which opens to the outside in a distal and in a proximal handpiece region, longitudinally guides a preferably single-use cooling-fluid/rinsing-fluid hose that is pushed into the guide tube.

Powered drivers operable to insert an intraosseous device into a bone are disclosed. Some of the present powered drivers include a housing having a distal end and a proximal end. A driveshaft may be located near the distal end of the housing and configured to engage a portion of the intraosseous device. A motor may be disposed in the housing and operable to rotate the driveshaft. A power source may be disposed within the housing and configured to power the motor. The powered drivers may include a lockout operable to prevent activation of the driver for increased safety when handling the driver.

A drill bit (20, 420, 520, 620, 720, 820, 920, 1020) is provided that includes a connector (32, 232, 532, 632, 732, 832, 932, 1032), which includes a shank (34), configured to receive torque; a proximal electrically-conductive coupler (36, 436, 536, 636, 736, 836, 936, 1036), which is disposed at a distal end (28) of the shank (34), rotationally fixed with respect to the shank (34); and a distal electrically-conductive coupler (38, 238, 438, 538, 838, 738, 838, 938, 1038). The distal electrically-conductive coupler is rotationally fixed with respect to the proximal electrically-conductive coupler, electrically isolated from the proximal electrically-conductive coupler, and shaped so as to define a distal-electrically-conductive external contact surface (62, 862, 962, 1062). The drill bit further includes a drill shaft (30, 130, 230, 330, 430, 830) including an electrically-conductive outer electrode (44) and an electrically-conductive inner electrode (46, 146, 246, 346, 846). Other embodiments are also described.