The invention features methods and devices useful for stimulating brain tissue in a subject via electrodes within cranial bone. These methods and devices may be utilized for the detection, prevention, and/or treatment of neurological disorders via electric stimulation. Additionally, the methods and devices disclosed herein may be useful for the treatment, inhibition, and/or arrestment of the growth of tumors.

The invention comprises an elongated device adapted for insertion, including self-insertion, through the body, especially the skull. The device has at least one effector or sensor and is configured to permit implantation of multiple functional components through a single entry site into the skull by directing the components at different angles. The device may be used to provide electrical, magnetic, and other stimulation therapy to a patient's brain. The lengths of the effectors, sensors, and other components may completely traverse skull thickness (at a diagonal angle) to barely protrude through to the brain's cortex. The components may directly contact the brain's cortex, but from there their signals can be directed to targets deeper within the brain. Effector lengths are directly proportional to their battery size and ability to store charge. Therefore, longer angled electrode effectors not limited by skull thickness permit longer-lasting batteries which expand treatment options.

Systems, devices and methods are described for surgical guide instruments. For example, this disclosure describes surgical guide instruments for assisting in countersinking shelves for deep brain stimulation lead locking mechanisms.

An apparatus and method is provided for intraoperative tissue stimulation during port-based surgery. The apparatus includes an access port and electrical terminals attached to the access port for tissue stimulation. In an alternative embodiment, the apparatus may include an access port, with or without electrical terminals attached to the access port for tissue stimulation, and electrocorticography sensors attached to the access port. The method includes inserting an access port into a tissue, applying an electrical potential to the tissue using electrical terminals attached to the access port, and measuring consequent neural activity using electrocorticography sensors attached to the access port.

A lead fixation device for securing a first portion of a lead relative to a hole formed through a skull includes a skull attachment member having an upper surface and a lower surface and a bore extending through and between the upper surface and the lower surface. The lead fixation device also includes a lead compression mechanism integral with the skull attachment member and aligned with the bore of the skull attachment member. The lead compression mechanism defines a passageway through the lead fixation device, which passageway is characterized by a diameter that is defined by the lead compression mechanism. The lead compression mechanism is configured to transition the diameter from a first size to a second size greater than the first size upon insertion of an implant tool through the passageway, and from the second size to the first size upon removal of the implant tool from the passageway.

Systems and methods for high-bandwidth, minimally invasive brain-computer interfaces (BCIs) are disclosed. The BCIs are configured for deployment and operation in conjunction with a comprehensive interventional electrophysiology procedural suite. Three primary methods of minimally invasive electrode array delivery are disclosed: (1) cortical surface delivery, (2) ventricular delivery, and (3) endovascular delivery. Additionally, systems and methods for interacting with such high-bandwidth electrode arrays are discussed, including real-time imaging, signal processing, and neural decoding. Systems and methods for architectures for accelerating the underlying computational processes (such as graphics processing units or tensor processing units) are also discussed. Multiple applications of BCIs are discussed, with emphasis on restoration, rehabilitation, and augmentation of neurologic function.

An auxiliary tool for surgery includes an auxiliary tool main body part, and a first leg pair located on the auxiliary tool main body part. A tail end of the first leg pair is connected to the auxiliary tool main body part, a first mounting part is formed at a front end of the first leg pair, and the first mounting part is configured to clamp and press a surgical device to place the surgical device in a predetermined position.

An implant insertion device includes a vibrational actuator generating axial vibrations, a coupler interconnected to the actuator and selectively retaining an implant with penetrating electrodes. The coupler has a distal end cavity at one end dimensioned to receive and retain at least a portion of the implant. Vibrations are transferred to the electrodes during insertion. A vacuum assembly connects to the coupler and provides a negative pressure, or suction force, when a vacuum source is attached and activated. This suction force is sufficient to hold the implant to the distal end of the coupler. Deactivation of the vacuum source removes the suction force, causing the implant to detach from the coupler without perturbation of position. The insertion device may then be removed. A system to coordinate the operation of the actuator and movement of the device and/or tissue relative to one another for delivery of the implant is also provided.

A universal low-profile intercranial assembly includes a mounting plate and a low profile intercranial device composed of a static cranial implant and an interdigitating functional neurosurgical implant. The low profile intercranial device is shaped and dimensioned for mounted to the mounting plate.

A neurostimulation system is shown and described. The neurostimulation system may include a stimulation device implantable into a patient, a lead operatively coupled with the stimulation device, a first power cell providing power to the stimulation device where the first power cell is charged by an externally applied AC (High HF) magnetic field.