Abstract: A surgical system for cutting into bone with a cutting tool. The system includes a sensor to output signals associated with a displacement of the cutting tool, a memory unit, a controller, and programs stored in the memory unit and executed by the controller. The programs include instructions for determining a proximal cortex acceleration event value after the cutting tool advances to a depth corresponding to a depth threshold value, determining a proximal cortex acceleration event depth value based on when the proximal cortex acceleration event value occurs, determining a plunging speed value of the cutting tool after the cutting tool advances to the depth corresponding to the proximal cortex acceleration event depth value, determining a bone hardness factor based on the proximal cortex acceleration event value and the plunging speed value, and determining a breakthrough depth of a bore based on the bone hardness factor.

Abstract: A surgical system for determining breakthrough depth of a bore in a bone passing through a proximal cortical layer of bone and a distal cortical layer of bone. The surgical system includes an instrument for coupling to a cutting tool. A sensor is coupled to the instrument to generate one or more depth measurements of the cutting tool as the cutting tool cuts through the bone. The breakthrough depth is determined based on depth measurements made after the cutting tool passes through the proximal cortical layer of bone. The breakthrough depth is optionally based on a type of bone being cut, bone hardness, and cutting tool selection.

Abstract: A surgical handpiece system capable of determining a suitable screw length for bone fixation with a bone plate that compensates an initial screw length value based on orientation of the surgical handpiece system during a drilling process. The surgical handpiece system comprising a surgical handpiece including a depth measurement extension and a sensor. The depth measurement extension may be configured to determine a thickness of bone when a drill bit is attached and used to drill through the bone. The sensor may be configured to generate an orientation signal responsive to orientation of the depth measurement extension. The surgical handpiece system also comprises a processor in communication with the sensor and configured to determine the suitable screw length for bone fixation based the sensor.

Abstract: A protective apparel system comprising a surgical helmet including a peripheral device and a surgical garment configured to be disposed over the helmet. The garment comprises a fabric and a face shield defining a sterile barrier between the wearer and the environment. At least one of a coupling member or housing may disposed on the face shield, the coupling member configured for removably couple the peripheral device to the face shield to orient the peripheral device relative to the face shield when the surgical garment is disposed over the surgical helmet. The housing may removably couple a lens assembly to the face shield.

Abstract: A surgical handpiece system. The surgical handpiece system includes a drill bit having a shank portion and a cutting portion. The surgical handpiece system also includes a surgical handpiece assembly. The surgical handpiece assembly includes a motor and a drive element configured to rotate the drill bit. A depth measurement member is moveable along an axis of the drill bit. A displacement sensor generates displacement signals responsive to movement of the depth measurement member. A depth measurement extension is configured to be coupled to the depth measurement member. The depth measurement extension has an elongated body for receiving the drill bit. The elongated body is sized to accommodate the shank and cutting portions of the drill bit. The elongated body is also sized to prevent passage of the drill bit entirely through the elongated body.

Abstract: A surgical drill bit assembly for use on a surgical drill. The surgical drill bit assembly includes a shank extending between a proximal end and a distal end along an axis. The surgical drill bit assembly also includes a cutting tip portion adjacent to the distal end of the shank. The surgical drill bit assembly also includes a sleeve disposed about at least a portion of the shank. The sleeve includes a non-magnetic material and an identification feature for identifying a configuration of the cutting tip portion. The identification feature includes a magnetic material. The magnetic material is dispersed in the non-magnetic material.

Abstract: A surgical handpiece system for use with a drill bit having an identification feature that includes magnetic material. A handpiece transfers torque to the drill bit to rotate the drill bit. A measurement module that includes a housing is coupled to the handpiece. A measurement cannula made of a non-magnetic material surrounds the drill bit during operation. The measurement cannula extends forward or rearward relative to the housing and has a distal end adapted for placement against a workpiece. A transducer assembly generates a transducer signal based on a position of the measurement cannula relative to the housing. A sensor generates an identification signal responsive to a magnetic field or magnetoresistance of the identification feature of the drill bit through the measurement cannula during operation. A controller receives the identification signal and identifies the coupled drill bit corresponding to the received identification signal.

Abstract: A protective apparel system comprising a surgical helmet including a peripheral device and a surgical garment configured to be disposed over the helmet. The garment comprises a fabric and a face shield defining a sterile barrier between the wearer and the environment. At least one of a coupling member or housing may disposed on the face shield, the coupling member configured for removably couple the peripheral device to the face shield to orient the peripheral device relative to the face shield when the surgical garment is disposed over the surgical helmet. The housing may removably couple a lens assembly to the face shield.

Abstract: A protective apparel system for use with a surgical helmet having a headlamp and including a protective apparel apparatus comprising a surgical garment, wherein the garment defines a sterile barrier between the wearer and the environment. The system includes a lens assembly adjacent to the surgical garment on the environment side and configured to cooperate with a coupling member for use with the headlamp. The lens assembly may include a control member and a lens, wherein the control member is be manipulatable by a wearer. The control member may be configured wherein manipulation by the wearer may reposition the lens of the lens assembly to adjust the direction and/or intensity of the light from the headlamp without breaching the sterile barrier.

Abstract: A surgical handpiece system for performing measurement functions and surgical operations. The system includes a handpiece assembly. The handpiece has a handpiece housing and a drive cannula rotatably coupled to the handpiece housing. The drive cannula extends along an axis and is configured to receive torque from a motor. A surgical attachment module has an attachment housing removably coupleable to the handpiece housing. The surgical attachment module has a drive shaft rotatably coupled to the surgical attachment housing and configured to receive torque from the drive cannula to operate an end effector. A measurement module has a measurement housing removably coupleable to the handpiece housing. The measurement module is configured to perform measurement functions associated with operation of the handpiece assembly.

Abstract: A surgical system for determining breakthrough depth of a bore in a bone passing through a proximal cortical layer of bone and a distal cortical layer of bone. The surgical system includes an instrument for coupling to a cutting tool. A sensor is coupled to the instrument to generate one or more depth measurements of the cutting tool as the cutting tool cuts through the bone. The breakthrough depth is determined based on depth measurements made after the cutting tool passes through the proximal cortical layer of bone. The breakthrough depth is optionally based on a type of bone being cut, bone hardness, and cutting tool selection.

Abstract: A surgical handpiece system for use with a drill bit having an identification feature that includes magnetic material. A handpiece transfers torque to the drill bit to rotate the drill bit. A measurement module that includes a housing is coupled to the handpiece. A measurement cannula made of a non-magnetic material surrounds the drill bit during operation. The measurement cannula extends forward or rearward relative to the housing and has a distal end adapted for placement against a workpiece. A transducer assembly generates a transducer signal based on a position of the measurement cannula relative to the housing. A sensor generates an identification signal responsive to a magnetic field or magnetoresistance of the identification feature of the drill bit through the measurement cannula during operation. A controller receives the identification signal and identifies the coupled drill bit corresponding to the received identification signal.

Abstract: A surgical handpiece system for performing measurement functions and surgical operations. The system includes a handpiece assembly. The handpiece has a handpiece housing and a drive cannula rotatably coupled to the handpiece housing. The drive cannula extends along an axis and is configured to receive torque from a motor. A surgical attachment module has an attachment housing removably coupleable to the handpiece housing. The surgical attachment module has a drive shaft rotatably coupled to the surgical attachment housing and configured to receive torque from the drive cannula to operate an end effector. A measurement module has a measurement housing removably coupleable to the handpiece housing. The measurement module is configured to perform measurement functions associated with operation of the handpiece assembly.