A computer-assisted surgical system can include a donor sub-system and a recipient sub-system. The donor sub-system includes a first reference unit having a first trackable element, a fragment reference unit having a second trackable element, and a first detector configured to provide at least one of a first signal corresponding to a detected location of one or more of the first trackable element and the second trackable element. The recipient sub-system includes a second reference unit having a third trackable element, and a second detector configured to provide at least one of a second signal corresponding to a detected location of at least the third trackable element.

Disclosed is a system to engage a plurality of tools. In the system a drive shaft and collet may be assembled to engage and disengage, selectively, a plurality of tools. User selection may allow use of a plurality of tools during a procedure or during a plurality of procedures.

A drill bit for drilling a cavity or a recess into a skull, wherein the cavity or the recess is configured to receive an implantable fixture screw unit of a hearing aid system, is disclosed. The drill bit includes a first part including a drill tip with a first drill diameter, wherein the drill tip comprises a tip angle of between 137 degrees to 143 degrees along a longitudinal axis of the drill bit and wherein the drill tip comprises a back rake angle of between −1 degree and +1 degree, in particular a back rake angle of substantially 0 degrees, a second part including a plurality of flute blades with a second drill diameter, wherein the second drill diameter is greater that the first drill diameter, and a transition part which is arranged between the first part and the second part and along the longitudinal axis, wherein the transition part includes a body clearance.

The present disclosure provides a burr hole cover (e.g., burr hole cover) and method of manufacturing such apparatus. The burr hole cover disclosed herein may be multi-functional in that it may be used to: (a) form a burr hole which provides access to the brain, and (b) facilitate concealing the burr hole without employing any fastening devices (e.g., surgical screws, wires, etc.). In embodiments, the burr hole cover may include a sleeve having an outer surface, an inner surface, and a hollowed portion. In embodiments, the outer surface of the sleeve may define external serrations. The sleeve may be configured to create a burr hole in a skull, and the external serrations may be configured to secure the sleeve within the burr hole. The burr hole cover may also include a plate configured to fit with the sleeve and conceal the burr hole.

The present invention provides minimally invasive subdural evacuating systems and methods of use thereof. The subdural evacuating systems include a cutting component and a rod component, wherein the rod component provides an external physical indicator that the surface of the dura mater has been reached, permitting the cutting component to accurately pierce the dura mater with minimal to no risk of damaging any adjacent anatomy.

Methods, devices, systems, and/or kits that encompass various components for accessing cerebrospinal fluid (CSF) in a CSF containing space of a subject to drain the CSF into a dural venous sinus (DVS) of the subject via a single cranial hole are disclosed herein. The described methods, devices, systems and/or kits drain the CSF into the DVS to treat hydrocephalus in a manner that does not require penetration into the gray matter of the subject’s brain.

A method of using a medical tool comprising a cranial access drill includes placing a guide-hub against a cranial drilling surface, guiding a drill bit into the guide-hub along an axial direction of the guide-hub, drilling the cranial drilling surface in the axial direction with the drill bit using a motor, detecting, using a controller, an electrical parametric change at the drill bit that corresponds to puncturing the cranial drilling surface, and deactivating, using the controller, the motor in response to detecting the electrical parametric change.

A system of robotic surgery includes components capable of drilling a bore in the cranium of a patient in connection with craniotomy and other cranial surgeries. A perforator associated with such system is controlled by suitable computer-implemented instructions to maintain the perforator tip along a desired trajectory line while moving the perforator bit at locations proximal to such perforator tip in a circular motion, thereby imparting a conical oscillation to the perforator bit relative to the trajectory line. The angle at which the perforator bit is oscillated relative to such trajectory line results in the bore formed in the cranium having a diameter larger than the bit diameter, and the larger diameter and related conical oscillation is selected so as to reduce frictional force opposing withdrawal of the bit from the situs of the bore, thereby reducing the risk of jamming of the bit during its associated operations.

A system and method for intracranial access is disclosed. In particular, a drill stop is shown providing a way to control the penetration of a drill bit as an access hole into the brain is being formed. Access to a desired location is achieved using a catheter guide device. Also disclosed is a mechanism by which multiple diagnostic and treatment devices can be placed at a desired location in brain tissue without the need for more than one access hole. A drainage catheter is disclosed with a mechanism to allow both drainage and to allow intracranial pressure measurement.

A perforator for drilling bone tissue has: a drive shaft with a rotational axis A; an inner cutting head with the same rotational axis A; a drive surface provided on the drive shaft; and a connector provided on the inner cutting head. The inner cutting head is displaceable with respect to the drive shaft along the rotational axis between a distal position, in which the inner cutting head is not driveable by the drive shaft, and a proximal position, in which the drive surface abuts the connector to transmit rotational motion from the drive shaft to the inner cutting head. The drive surface is inclined relative to the rotational axis A.