An intracranial prosthesis comprised of a flat body having an interior ultrasound-compatible window and means about the outer portion capable of engaging a plurality of diagnostic instruments and/or intracranial delivery systems so that a practicing medical professional can monitor certain parameters of a patient or deliver therapeutic agents to the patient while using an ultrasound-monitoring device to image the patient's brain. The prosthesis is designed to allow for the continuous, uninterrupted, simultaneous monitoring of a number of parameters of a patient's brain at the patient's bedside.

This document discusses, among other things, examples of a low profile instrument immobilizer and means for positioning the same. In one example, the low profile instrument immobilizer grasps, secures, and immobilizes an electrode or other instrument that extends through a burr hole in a skull to a target location in a patient's brain.

A kit or arrangement for securing a burr hole plug that includes a guide base having an upper flange, a lower flange, and a connecting member coupling the upper flange to the lower flange, each of the upper flange and the lower flange defining one or more guide holes, wherein the one or more guide holes of the upper flange are aligned with the one or more guide holes of the lower flange; a drill shank including a cutting element and a main shaft that are configured to pass through any one of the one or more guide holes in the upper flange; and one or more guide collets including a collet shaft and a fastener tube extending from the collet shaft to receive a fastener, where the collet shaft and fastener tube are configured for insertion into any one of the guide holes in the upper flange.

This document discusses, among other things, examples of a low profile instrument immobilizer and means for positioning the same. In one example, the low profile instrument immobilizer grasps, secures, and immobilizes an electrode or other instrument that extends through a burr hole in a skull to a target location in a patient's brain.

A computer implemented method of identifying contacts of an electrode implanted into the brain of a subject via bolts through the skull of the subject, based on an image of the subject, the method comprising: identifying at least one bolt region of the image corresponding to a bolt; identifying one or more contact regions of the image corresponding to electrode contacts; determining contact regions associated with an identified bolt region by searching for identified contact regions, the search being performed based on a search axis extending from the identified bolt region, the direction of the search axis being determined based on the identified bolt region.

An intracranial prosthesis comprised of a flat body having an interior ultrasound-compatible window and means about the outer portion capable of engaging a plurality of diagnostic instruments and/or intracranial delivery systems so that a practicing medical professional can monitor certain parameters of a patient or deliver therapeutic agents to the patient while using an ultrasound-monitoring device to image the patient's brain. The prosthesis is designed to allow for the continuous, uninterrupted, simultaneous monitoring of a number of parameters of a patient's brain at the patient's bedside.

A cerebrospinal-fluid-pressure-measuring device including a pressure gauge including a hollow cylindrical body for inserting through a skull and having a lower and upper end, and an inner surface, a membrane attached to the lower end and to move under a pressure of cerebrospinal fluid within the skull, and coils including a stationary coil disposed in the cylindrical body and connected to the inner surface so as to remain stationary, and a moving coil disposed in the cylindrical body and connected to the membrane so that the moving coil moves when the membrane moves under the pressure, one of the coils being configured as a transmitting coil and another of the coils being configured as a receiving coil, and a control unit to apply an input signal to the transmitting coil and receive an output signal from the receiving coil, and to generate an indication of the pressure.

An electrode device is disclosed that is removably implantable at least partially in a bone or other tissue. The electrode device includes a head and a shaft connected to the head. The shaft has a shaft body extending distally from the head in an axial direction of the shaft, and a conductive element including a conductive surface at a distal end of the shaft. A plurality of discrete anchor elements can project from an outer surface of the shaft body in a transverse direction of the shaft. A conductive wire can be permanently fixed to a proximal end surface of the conductive element, the end surface being located in or adjacent the head. The head can have a convex outer surface and a concave inner surface. An electrode array and a reamer tool is also disclosed.

A cranial plug includes an intracranial monitoring device having a probe and a cranial plug housing having an intracranial monitoring device recess. The intracranial monitoring device recess is shaped and dimensioned for positioning of an intracranial monitoring device and includes a central access hole shaped and dimensioned for the passage of the probe of the intracranial monitoring device therethrough to a desired position within the brain.

A system provides a burr hole cap assembly configured to secure a position of a lead implanted through a burr hole in a cranium of a patient. One or more electrodes are coupled to one or more components of the burr hole cap assembly. The one or more electrode is disposed within the burr hole cap assembly for sensing signals within a brain of the patient or stimulating a portion of the brain of the patient.