18 results about "Burr holes" patented technology

Lead fixation devices for mounting at a cranial burr hole and securing a medical lead implanted into a brain through the burr hole. One embodiment comprises a clamp having centrally disposed clamping walls activated by a plunger having actuating tabs. The clamping walls may be an integral part of a device base, or a separate part seated in a central opening of the base. The clamp is activated by pressing the actuating tabs of the plunger into apertures adjoining the clamping walls, which displaces the clamping walls to clamp the lead. Another embodiment comprises a base having a plurality of radial and peripheral lead retention grooves configured to securely retain a substantial segment of the lead at the exit from the burr hole. Still another embodiment comprises both a clamp and peripheral retention grooves to provide a dual fixation and strain relief of the lead within the lead fixation device.

A cranial lead fixation device includes a body configured for fixation to a cranium over or within a burr hole, and a fixation mechanism associated with the body. The body and fixation mechanism capture a medical device (e.g., a lead, catheter, or similar device) within a fixation channel of the cranial lead fixation device for protection of the burr hole and securement of the medical device. The cranial lead fixation device is operable for a first open configuration and a second closed configuration.

An apparatus for fastening around a cranial burr hole includes a substantially flat core and a shell encapsulating a ring portion of the core. The shell defines an orifice substantially centered within the ring portion, and has a contoured lower surface to match the cranial curvature. Pliable arms of the core extend laterally from the ring portion, each being terminated by a fastener member. A central portion of a placement tool for the apparatus has a lower part configured to extend through the apparatus orifice, and an upper part from which first and second arms of the tool extend laterally. Each tool arm is terminated with a receptacle to hold a bone screw, and, when the tool central portion lower part extends through the apparatus orifice, each receptacle aligns with a corresponding fastener member, and lower openings of the receptacles are generally oriented along the contoured lower surface.

A system for MRI-guiding of a cranial drill for drilling a burr hole into a skull of a patient in vivo. The system comprises an MRl-compatible controller configured to send actuator commands and an MRI-compatible cranial drill system adapted to be secured to, or proximate to, the head of the patient. The cranial drill system includes a pressure sensor and is adapted to receive the actuator commands and send position data and force feedback from the pressure sensor to the controller. A fiber optic cable is connected between the controller and navigation software. The navigation software is configured for transmitting scanner control signals to the MRI scanner and receiving images generated by the MRI scanner for transmission to a display output for receiving electrical signals and for displaying corresponding images. The navigation software is adapted to receive commands based on the images.

Some embodiments of the present disclosure comprise improved systems and methods for monitoring physiological parameters such as intracranial pressure (“ICP”), intracranial temperature, and subject head position. For example, in some embodiments, an implantable apparatus for measuring ICP can be implanted into a subject skull. The apparatus can comprise an implant body having a hermetically sealed chamber housing a gas at a reference pressure, and a pressure conduction catheter having a proximal end and a distal end, wherein the distal end is configured to extend into the brain through a burr hole in the skull and includes a plurality of ports. A barrier can cover the ports of the distal end of the pressure conduction catheter, wherein the barrier and pressure conduction catheter are filled with a number of gas molecules so that the barrier is not in tension in a predefined range of ICPs.

The invention relates to the technical field of craniocerebral drilling drainage, and discloses a device for guiding sneaking of a drainage tube in craniocerebral minimally invasive drainage, the device comprises a puncture cone and a twisting controller, and the puncture cone comprises a tail cone needle section, a rod part and a cone tip which are sequentially arranged from the rear end to the front end; the tail cone needle section is used for sleeving the tail end of the drainage tube so as to fix the tail end of the drainage tube, the front end of the cone tip is sharp, the cone tip is used for puncturing from a skull drilling position through a subscalp gap and poking out of the scalp at a specified position, and the puncture cone drives the drainage tube to synchronously penetrate through a tunnel while establishing a sneaking tunnel in one stroke so as to realize sneaking retention of the drainage tube; the sneaking tunnel formed by the puncture cone through puncture has the size better matched with that of the drainage tube, establishment of the sneaking tunnel and sneaking retention of the drainage tube are synchronously achieved only through one-time puncture stroke, and compared with the prior art that a guiding device needs to go back and forth twice strokes, the guide device is more convenient to use. The device has the advantages of improving the operation safety, saving time and labor, being minimally invasive, enhancing the tunnel effect, reducing the infection risk and the like.

An implantable cranial medical device (100) includes a first fluid flow path, a second fluid flow path, and upper flange portion (110), and a lower portion (120). The upper flange portion (110) is configured to rest on a skull of a subject about a burr hole. The lower portion (120) is configured to be placed within the burr hole. The first fluid flow path may extend from a first opening (150) in the upper flange portion (110) to a first opening (132) in the lower portion (120). The second fluid flow path may extend from a second opening (140) in the upper flange portion (110) to a second opening (134) in the lower portion (120).

A dural venous sinus (DVS) implant anchor includes a body comprising a first portion extending in a first longitudinal direction, a second portion extending in a second longitudinal direction opposite the first longitudinal direction, and a connector portion coupled to the first portion and the second portion at an offset depth that corresponds to a depth of a first part of a thickness of a skull of a subject. When the DVS implant anchor is disposed within a DVS burr hole in the skull of the subject, the first portion extends along an outside surface of the skull and the second portion is at least partially disposed within the DVS burr hole.

A device and method for eliminating subdural hematomas with a reduced recurrence rate, avoiding the use of general anesthesia and allowing treatment with reduced risk to those affected. The device includes a precision cutting tool used to create a uniform diameter within an existing hole in a target area of ​​a subject, thereby maximizing the diameter-to-depth ratio of the hole and simultaneously removing material in both radial and axial directions. The method includes establishing an initial hole to facilitate placement of a port within an implant hole in the target area of ​​a subject.

A targeting guide is disclosed includes a handle extending substantially along a longitudinal axis. The longitudinal handle defines one or more burr holes extending from a first side of the handle to a second side of the handle. A head is coupled to a distal end of the longitudinal handle. The head defines a plurality of guide holes sized and configured to receive a k-wire therethrough.

A lead fixation device for attaching a deep brain stimulation lead within in a burr hole in a human skull. The lead fixation device may comprise a mounting plate and an insertion collar extending from a lower surface of the mounting plate and configured to be received in within the burr hole in the human skull. The mounting plate may comprise a mounting flange, a first arm and a second arm. The mounting flange and the first arm may comprise a static mounting hole while the second arm may comprise an adjustable mounting hole. The second arm may be movable to an operating position when the second arm is compressed toward the first arm, the inner walls of the first and second arms are substantially parallel, and the mounting screw is tightened within the adjustable mounting hole when the second arm is in the operating position.

Systems and methods for monitoring physiological parameters such as intracranial pressure (“ICP”), intracranial temperature, and subject head position are provided. In some embodiments, an implantable apparatus for measuring ICP can be implanted into a subject skull. The apparatus can comprise an implant body having a pressure conduction catheter having a proximal end and a distal end, wherein the distal end is configured to extend into the brain through a burr hole in the skull and may include a plurality of ports.

A bone-anchored hearing aid assembly is provided comprising: an implantable anchoring shaft comprising an axial lumen extending therethrough and configured to be fixated within a burr hole drilled in the skull of a subject; and a removable stimulation unit shaped to be received within said axial lumen of the anchoring shaft; wherein the anchoring shaft and the stimulation unit are configured for detachable attachment of the stimulation unit to the anchoring shaft within said axial lumen of the anchoring shaft; and wherein said removable stimulation unit comprises a reciprocating end effector passing through a bottom aperture at a distal end of said removable stimulation unit, said end effector being configured and controllably actuated to perform a reciprocal movement along a main longitudinal axis of said removable stimulation unit for mechanically transmitting vibrations to a subj ect' s cochlear wall for perception by the subject as sound.

A medical device for accessing soft tissue of the brain may include a delivery sleeve assembly including a sheath configured to receive a surgical access device and mate with a socket arrangement of a cranial burr hole device arranged on a patient, and a depth stop arranged on the sheath of the delivery sleeve assembly configured to be selectively adjusted along the sheath to an incremental depth marker associated with the location of a surgical site.

A burr hole device is configured to receive a catheter and a cable of a sheath. The sheath is configured to receive a portion of the catheter and has an electrode. When the catheter and sheath are implanted with the burr hole device, the catheter and electrode of the sheath are implanted in a brain. Systems and apparatuses may include the burr hole device and / or a cranial port device, the catheter, and the sheath.

Various embodiments of a catheter stabilizer that includes a retention body and an occluder for positioning within a burr hole or other channel in the body for occlusion and stabilization of a catheter during a surgical procedure are described herein. Specifically, the retention body further defines a channel configured to be oriented above the burr hole; in some embodiments the channel can provide reference for drilling a burr hole after placement of the retention body. The catheter stabilizer further includes an occluding arm, which can be positioned across an opening of the burr hole for receiving and occluding a catheter within the burr hole.

An intracranial implant sensing device includes a flange receivable within a burr hole formed in a human skull and defining an elongated slot. The device further includes an elongate body having an arcuate sidewall defining an open guide for a ventricular catheter. The elongate body is connected to the flange such that a portion of the sidewall is disposed within or at a perimeter of the slot. A sensing electrode of the device is connected to the sidewall of the elongate body.

The device comprises a converter, the converter comprises a base and a bridle connected with the base, the base comprises a panel of a shell, an elastic burr base and burrs with the tip pointing to the skin, and the other face of the panel of the shell is provided with bridle openings or abutting ribs. The burr base is connected with the other face of the shell panel, the bridle penetrates through the bridle opening to be connected with the two sides or the two ends of the burr base, the bridle and the burr base jointly form a protruding structure higher than the bridle opening or abutting against the end of the rib, the fixed end of the burr is fixedly connected with the face, away from the skin, of the burr base, and a movement path of the burr is arranged in the burr base. The length of the burrs is not larger than the thickness of the burr base, and burr holes corresponding to the burrs are formed in the portion, making contact with the skin, of the shell panel. The invention further discloses a posture correction device combination device. Cost is reduced on the basis of simplifying the structure, and the posture correction device is easy to adjust and can be widely applied to the field of posture correction.