The present disclosure presents a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory. The trajectory array guide system can comprise: a base, an array guide, an imaging unit, and an elongated handle configured for connection with a stereotaxic navigation system. The present disclosure presents a method of using a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory.

The present disclosure presents a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory. The trajectory array guide system can comprise: a base, an array guide, an imaging unit, and an elongated handle configured for connection with a stereotaxic navigation system. The present disclosure presents a method of using a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory.

An electromagnetic intramedullary nail screw positioning system is used to assist an orthopaedic surgeon to correctly aligned a screw drill guide with a screw receiving aperture in an intramedullary nail during surgery. However due to the large number of different types of intramedullary nail, the system must be calibrated during each surgery. An improved calibration system is described that no longer requires the surgeon to perform the calibration during the surgery in order to save time and improve robustness. The system is periodically calibrated and a memory stores offset information for a range of nails types relative to a reference nail. During surgery, the surgeon enters a nail identifier, and the system looks up the associated offset and applies this offset to the measured signals to guide alignment of the screw drill guide with the screw receiving aperture.

An orthopedic surgical instrument comprising: a customized patient-specific acetabular reaming guide comprising an at least partially circular body, having an inner surface defining a slot sized to receive an acetabular reamer head, and further having a top surface defining a contact element; at least one support element configured for supporting the at least partially circular body on a patient-specific anatomy of a coxal bone; and further comprising at least one acetabular reamer head comprising a bone milling portion configured for insertion in the slot of the acetabular reaming guide; a connecting element configured for removable attachment to a reamer's shank for operation of the at least one acetabular reamer head; wherein the orthopedic surgical instrument further comprises an abutment element attached to a top portion at least one acetabular reamer head and configured to limit a milling depth of the bone milling portion, by resting on the contact element of the acetabular reaming guide.

The invention relates to a holder device for holding a medical instrument, the device comprising:

a base that is to be carried by an apparatus comprising a medical imaging probe associated with the medical instrument; and

a carrier structure for carrying the medical instrument and movably mounted on the base so as to be capable of moving on the base between a first position and a second position.

The invention also relates to an installation including both such a device and a needle-guide.

An instrument for establishing orientation of a pelvic prosthesis comprises a hub, a first arm attached to and extending from the hub, and a second arm attached to and extending from the hub. The first and second arms define a nominal plane of the apparatus, and may extend from the hub at an angle relative to each other. Distances between the first and second legs and between the first and third legs are adjustable. The first, second, and third legs have tips, and the tips of the first, second, and third legs define a plane having a predefined geometric relationship to the nominal plane of the apparatus.

An instrument for establishing orientation of a pelvic prosthesis comprises a hub, a first arm attached to and extending from the hub, and a second arm attached to and extending from the hub. The first and second arms define a nominal plane of the apparatus, and may extend from the hub at an angle relative to each other. Distances between the first and second legs and between the first and third legs are adjustable. The first, second, and third legs have tips, and the tips of the first, second, and third legs define a plane having a predefined geometric relationship to the nominal plane of the apparatus.

An improved guide for a medical needle is disclosed herein. An aligning element for aligning a needle guide, which is equipped for longitudinally guiding a medical needle, includes a connecting element for arranging the aligning element on the needle guide, and a light-guiding element for a predetermined diffusion of light. The light-guiding element only generates a predetermined light pattern relative to the diffusion of light in a pose predetermined by the geometry of the apparatus. Such an aligning element may be used in a treatment arrangement for longitudinally guiding a needle and in a method for aligning a needle guide.

Devices, systems, and methods for aiding insertion of a surgical implant by providing a threaded guide tube configured to engage a threaded surgical instrument such that an end-effector of a robot may provide force to drive the surgical implant into a patient. In addition, devices, systems, and methods relating to a dilator system for use with a robotic system that allows independent and separate control of tools within the dilator system.

Devices, systems, and methods for aiding insertion of a surgical implant by providing a threaded guide tube configured to engage a threaded surgical instrument such that an end-effector of a robot may provide force to drive the surgical implant into a patient. In addition, devices, systems, and methods relating to a dilator system for use with a robotic system that allows independent and separate control of tools within the dilator system.