According to examples, systems, devices, and methods for detecting rapid eye movement (REM) are described. The device may include an array of ultrasound sensors oriented to emit transmit ultrasounds signals in an eyeward direction, wherein the ultrasound sensors are to receive a return signal of the transmit signal reflecting off of a target, and wherein the ultrasound sensors are to output a distance signal representative of a distance to a target, the distance signal generated based on the return signal, and a transceiver to receive the distance signals, wherein the transceiver is to transmit the distance signals from the array of ultrasound sensors to a remote device.

Some embodiments provide systems, assemblies, and methods of analyzing patient anatomy including providing an analysis of a patient's spine. The systems, assemblies, and/or methods can include obtaining initial patient data, and acquiring spinal alignment contour information. Further, the systems, assemblies, and/or methods can assess localized anatomical features of the patient, and obtain anatomical region data. The system, assemblies, and/or method can analyze the localized anatomy and therapeutic device location and contouring. Further, the system, assemblies, and/or method can output localized anatomical analyses and therapeutic device contouring data and/or imagery on a display.

A robotic arm comprising an operation end, a base, a sensor unit and a control unit is provided. The operation end is connected to the base, and the operation end is configured to reach an operational area. The sensor unit provides a sensor signal according to the force applied by or the motion of an operator. When the operation end reaches the operational area, the control unit sets a fixed position on the robotic arm between the base and the operation end. When the sensor signal from the operator fulfills a default condition, the control unit moves the robotic arm away from the operator, without moving the fixed position on the robotic arm.

A surgical fastener applier including a housing containing a compartment, an elongated member extending distally from the housing, first and second jaws and a firing mechanism positioned within the housing. The firing mechanism is movable between a first position and a second position to effect firing of fasteners into the tissue clamped between the first and second jaws. A cover on the housing is openable to access the compartment. A power pack is removably loadable into the compartment, the power pack having a motor and an engagement member removably engageable with the firing mechanism within the compartment when the power pack is loaded into the compartment to effect movement of the firing mechanism from the first position to the second firing position.

A robotic system for treating a patient includes a robotic arm with an end effector for treating the patient, wherein the robotic arm is configured to be movable in a space surrounding the patient, and the end effector is configured to be movable individually and co-movable with the robotic arm in said space; a sensing device for acquiring data associating with coordinates and images of the end effector and the patient; and a controller in communications with the robotic arm and the sensing device for controlling movements of the robotic arm with the end effector and treatments of the patient with the end effector based on the acquired data and a treatment plan.

An accuracy system configured to determine the accuracy of a stereotactic system The accuracy system is configured to determine a displacement between a pointer tip positioned by the stereotactic system and a target point defined by a phantom base. The accuracy system is configured to mechanically engage the phantom base when the phantom base mechanically engages the stereotactic system to determine the displacement. In examples, a gauge support mechanically engages a pin of the phantom base and determines the displacement using one or more visible indicia. In examples, a gauge frame supports one or more cameras and determines the displacement using a first image and a second image obtained by the one or more cameras. The accuracy system provides an output viewable by a practitioner to indicate the determined displacement.

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.

A bone resection instrument, comprising means of support and positioning for the correct alignment of the tool with respect to the bone to be cut, a cutting guide, connected to the means of support and positioning, comprising a support attachable to a bone to be cut. The cutting guide comprises a gauge block having a cutting surface and removably connected to said support. The instrument is part of a bone resection kit comprising a plurality of gauge blocks, each differing in height from one another.

An orthopedic system to monitor a parameter related to the muscular-skeletal system is disclosed. The orthopedic system includes electronic circuitry, at least one sensor, and a computer to receive measurement data in real-time. The orthopedic system comprises a first plurality of shims of a first type, a second plurality of a second type, a measurement module, and the computer. The measurement module houses the electronic circuitry and at least one sensor. The measurement module is adapted to be used with the first plurality of shims and the second plurality of shims. The measurement module has a medial surface that differs from a lateral surface by shape, size, or contour.

According to an exemplary embodiment of the present disclosure, high intensity focused ultrasound device delivering high intensity focused ultrasound is disclosed. The high intensity focused ultrasound device comprising: a gripping part constituting a part of an outer housing of the high intensity focused ultrasound device and forming a grippable shape by a user; and an action part positioned at least partially on an extension line of a vertical cross-section of the gripping part and transmitting high intensity focused ultrasound generated from the high intensity focused ultrasound device to an outside.