4 results about "Intracranial Cavity" patented technology

The present application relates to the technical field of intracranial blood vessel ultrasound training model, specifically to an intracranial blood vessel TCD simulation training model, comprising a peristaltic pump, the input end and the output end of the peristaltic pump are connected with conveying pipelines, the peristaltic pump is provided with a head model on one side, the head model comprises a head model body, the head model body has a simulated cranial cavity, the top of the simulated cranial cavity has a placing opening, the upper part of the placing opening has an openable cover; the outer side of the head model body has a temporal window, an occipital window and an eye window; the inside of the simulated cranial cavity is filled with a plurality of brain tissue simulation gels, the brain tissue simulation gels are embedded with adjustable simulation blood vessel network structures arranged according to the structure of Willis ring, the input end and the output end of the adjustable simulation blood vessel network structures are respectively connected with the output end and the input end of the peristaltic pump. The present application solves the problems that the existing clinical TCD doctor training relies on direct operation on patients, has many defects, lacks special simulation training model, cannot evaluate the accuracy of doctor operation and limits the application of TCD technology.

The application discloses an intracranial hematoma ultrasonic crushing device and relates to the field of medical equipment, which comprises an ultrasonic vibration rod, an adhesion device and a reflux pipe, the reflux pipe is arranged at the end of the adhesion device far from the ultrasonic vibration rod, and a reflux pipe inner cavity is arranged in the reflux pipe; a drainage pipe and a suction pipe are arranged on the rod end cover. The application can realize ultrasonic crushing and discharge of intracranial hematoma, is clean and complete, avoids residue, enables blood clots to be fully adsorbed and discharged, and enables the cerebrospinal fluid pressure in the cranial cavity to be normal and not to be blocked. The trace suction and supply type purifies the cerebrospinal fluid, does not affect the intracranial pressure, and avoids the phenomenon of unstable intracranial pressure.

The application relates to the field of interventional medical technology, in particular to a percutaneous interventional venous sinus puncture access device. The access device is formed by the mutual cooperation of a balloon catheter, a deflecting catheter and a puncture guide wire, can puncture into the subarachnoid cavity in the cranial cavity on the venous sinus without damaging the brain, break the dura mater and arachnoid, construct a stoma between the pontocerebellar angle pool and the inferior petrosal sinus, and make the cerebrospinal fluid flow from the subarachnoid cavity to the venous sinus, to the jugular vein and to the heart, and participate in blood circulation. The access device can also be used for delivering a shunt, so that the hydrocephalus which can only be effectively treated by operation in the past can be treated by a minimally invasive interventional method, the access device is not used for surgical open operation, the intraoperative trauma is reduced, the operation time is saved, and the possibility of postoperative infection is greatly reduced.

This disclosure provides a device and method for intracranial multimodal signal detection based on field-effect transistors (FETs). The device includes: a neural probe comprising multiple parallel FETs, each FET configured to acquire extracellular potential signals and brain chemical concentration signals at different locations within the intracranial cavity, and to generate corresponding composite electrical signals using the extracellular potential signals and brain chemical concentration signals at each location; and a decoupling unit electrically connected to the neural probe, configured to acquire each composite electrical signal from the neural probe and decouple each composite electrical signal into a high-frequency physiological electrical signal corresponding to the extracellular potential signal and a low-frequency chemical electrical signal corresponding to the brain chemical concentration signal. This embodiment can simultaneously and accurately acquire high-frequency physiological electrical signals and low-frequency chemical electrical signals at the same location within the intracranial cavity.