10 results about "Craniotomy" patented technology

The invention relates to a brain-computer interface system which comprises a flexible electrode array, a receiving device, a flexible connecting wire and external equipment, wherein the flexible electrode array is implanted into a meninx middle artery in a minimally invasive manner through a superficial temporal artery puncture and a vascular intervention procedure; the receiving device is embedded under the skin of a head and is provided with a signal transmitter; the external equipment is provided with a signal receiver. A flexible electrode array is implanted in an anterior branch or posterior branch of a main branch of a middle meninx artery through a superficial temporal artery intravascular minimally invasive technology, the number of electrodes and the array are arranged according to needs, and a receiving device buried in the subcutaneous part of the head is electrically connected with the flexible electrode array implanted in the middle meninx artery. Craniotomy is not needed, operative complications are avoided, minimally invasive implantation reaches the surface of the cerebral cortex, operation of a doctor is easier, the operation time is shortened, and the comfort level of a patient is improved.

This invention relates to the field of medical control technology, specifically to a glioma ECoG electrode localization system based on the fusion of multimodal MRI and intraoperative photographs. It includes a brain imaging data acquisition module for preoperative acquisition of multimodal brain imaging data and an acquisition module for acquiring intraoperative craniotomy photographs for ECoG electrode placement. The system further aligns the multimodal brain imaging data to the same three-dimensional spatial coordinate system; then segments and corrects the multimodal brain imaging data into different regions; and establishes an individualized brain region atlas based on a healthy brain tissue texture model and segmented brain regions. Vascular structures are extracted, and a three-dimensional spatial coordinate system for vascular feature points and electrode contacts is established and transformed. The minimum Euclidean distance is calculated based on the electrode contacts, and the individualized brain region atlas is labeled. This invention addresses the problems of insufficient spatial positioning accuracy of electrode contacts and difficulty in quantifying tumor-electrode distance during surgery for glioma patients, facilitating intraoperative determination of the anatomical location of the epileptogenic focus by surgeons.

The utility model relates to a skull craniotomy operation negative pressure suction device, including the flexible cover made of transparent material, the flexible cover one end big, one end small arrangement and small scale end cover set in one end of milling cutter, the cutter head of milling cutter is located in the chamber of flexible cover, flushes the head and is along the cover mouth circumference direction interval arrangement many groups of flexible cover, flushes the head with the liquid guide export of flush equipment and passes through the pipeline intercommunication, one end of suction pipe stretches into the chamber of flexible cover, the other end of suction pipe and the suction mouth of negative pressure suction device are connected through the pipeline, adopts transparent flexible cover to form the physical barrier, will the milling cutter head completely wrap up in the chamber, breaks out the bone splinter to the surrounding environment, and the flush head of circumference even distribution sprays physiological saline to the center, forms the spiral water flow in the chamber, can ensure the light transmittance of flexible cover, can clearly milling cutter head and the contact state of bone window, cooperation suction operation of suction pipe, can suck out the bone splinter that splashes out of flexible cover, and further can effectively prevent the bone splinter splashing problem.

A cranial fixation device for decompression / expandability craniotomy is described, the device comprising a lid and a plurality of brackets (3A, 3B, 3C, 3D, 3E, 3F), designed to treat a pathology causing a herniation accompanied by an increase in intracranial pressure, and is of the type comprising forming an opening in the skull by milling along the craniotomy edge to be suitable for allowing expansion of the brain, and applying the lid having a protective and accommodating function for the brain at a certain distance perpendicular from the craniotomy edge, and the lid is connected to the craniotomy edge by a plurality of brackets (3A, 3B, 3C, 3D, 3E, 3F) that are simultaneously fixed to the lid and the craniotomy edge.

The application relates to the technical field of medical devices, in particular to a craniotomy device for neurosurgery, which comprises a surgical bed, an adjusting part and a craniotomy part, the bottom surface of the surgical bed is provided with a base, the top surface of the surgical bed is symmetrically provided with bases, the adjusting part is slidingly installed on the bases, the craniotomy part is slidingly connected with the adjusting part, the end surface of the craniotomy part is arranged towards the surgical bed, the surface of the craniotomy part is provided with a positioning part, and the positioning part can be in contact with the head of a patient; the craniotomy direction can be adjusted to meet the operation requirements of different directions, and the craniotomy equipment can be positioned to improve the drilling precision.

This invention discloses an integrated device for quick-change of end-effector instruments in a craniotomy robot, comprising a support platform with a sliding mechanism and a force sensor on each side; the sliding mechanism includes a sliding frame comprising two sleeves connected by a connecting beam, with two linear slide rods passing through the two sleeves and slidably connected to the sleeves via linear bearings; the bottom ends of the linear slide rods are fixed to the support platform, and springs are fitted on their outer sides, respectively abutting between the sliding frame and the support platform; limiting strips are fitted on the top sides of the two linear slide rods and fastening nuts are threaded onto them to limit the distance between the sleeves and the support platform; a clamping mechanism consisting of two movable grippers is provided on the outer surface of the sliding mechanism, the clamping mechanism consisting of a detachable retaining ring, a locking mechanism, and a latch; this device achieves integrated drilling and milling functions, and can perform flexible bone milling based on real-time force sensing, and has the advantages of easy instrument replacement, disassembly, and high positioning in its structural design.

The application discloses a craniotomy drill, which comprises a supporting and positioning assembly, a driving component, a drill bit and a control component; a limiting rod is arranged on a frame; a driving machine one is in sliding connection with the limiting rod, and a telescopic end of an electric telescopic piece is connected with the driving machine one; the drill bit is connected with an output rotating shaft of the driving machine one; an opening is arranged on a side wall of the drill bit, and a flexible push piece is embedded in the opening; a detection end of a torque sensor is connected with the output rotating shaft, and the driving machine one, the electric telescopic piece and the torque sensor are electrically connected with a controller. The limiting rod can abut against a skull, so that the drill bit cannot be dislocated; before the limiting rod abuts against the skull, the drill bit is precisely positioned by using a positioning rod; after the drill bit is positioned, the drill bit can be fed at a certain speed; when the drill bit is about to drill through the skull, the driving machine one and a driving machine two can immediately stop rotating; bone scraps on the outside of the drill bit can be pushed by the flexible push piece to a region far from the opening position, so that the bone scraps cannot fall into the skull.

Proposed is a non-fixing implant made of a raw material including a biomaterial and a ceramic-based composite material having excellent osteoconductivity in addition to a polymer. The non-fixing implant can be accurately secured to a gap between the skull and the bone flap and can be conveniently used. Further proposed is a method of manufacturing the non-fixing implant. The non-fixing implant includes a flexible wedge deformable to conform to the external contour of the bone flap and a plurality of wings connected to an upper or lower portion of the flexible wedge and extending to both sides of the flexible wedge. The wings have a porous structure. The wings on one side will be positioned on the bone flap and the wings on the other side will positioned on the skull. The non-fixing implant has the advantage of being capable of accurately filling a defect formed by craniotomy, has improved biocompatibility and bone bonding ability, and allows tissue invasion.

This invention discloses a fixation table for zebrafish microsurgery, belonging to the field of biological experimental instrument technology. The fixation table includes a culture device, a silicone fish sleeve, a compression ring, a universal ball joint mechanism, and a connector. The silicone fish sleeve is a hollow, flexible, contoured sleeve with a compression ring at its expanded end. By rotating the compression ring, the flexible wall of the silicone fish sleeve contracts inwards uniformly, wrapping and fixing the zebrafish's body in a non-invasive manner. The locking end of the fish sleeve exposes the fish's head, facilitating surgical operations. The universal ball joint mechanism connects to the compression ring via the connector, enabling rapid adjustment and locking of the fish body at any angle in three-dimensional space, meeting the needs of various surgical positions such as upright, inverted, and lateral placement. This invention solves the problems of easy slippage, uneven pressure, difficulty in body position adjustment, and cumbersome operation in existing zebrafish fixation methods, and is suitable for various delicate microsurgeries such as mandibular bone injuries, intraocular injections, and craniotomy.

This utility model relates to a waterproof craniotomy saw, belonging to the field of craniotomy tool technology. It includes: a saw body, a drive assembly, a heat-conducting structure, and a heat-dissipating structure. A sealed drive cavity is formed inside the saw body. The drive assembly and the heat-conducting structure are installed inside the drive cavity. The heat-conducting structure is made of heat-conducting material and is thermally connected to the drive assembly. The heat-dissipating structure installed outside the drive cavity is thermally connected to the heat-conducting structure. The heat-conducting structure can conduct the heat generated by the drive assembly to itself, while the heat-dissipating structure can accelerate the dissipation of heat in the heat-conducting structure. With the cooperation of the heat-conducting structure and the heat-dissipating structure, the heat generated by the drive assembly can be discharged to the outside of the drive cavity without the need for gas flow for heat dissipation. Thus, the drive cavity can be set in a sealed form, allowing the craniotomy saw to be directly washed with water or soaked for cleaning.