22 results about "Intracranial Cavity" patented technology

The invention relates to the technical field of medical monitoring and early warning, and discloses a postoperative care risk early warning system for neurosurgical patients. According to the system, real-time monitoring flows of electroencephalogram, intracranial pressure and body surface myoelectricity of a patient are continuously received, and a dynamic interaction network of neuroelectrophysiology and intracranial mechanical states is constructed so as to represent the coupling relation among electroencephalogram rhythm, pressure conduction and postoperative skull windowing area tissue compliance. The system analyzes three types of core parameters of cerebral cortex excitability, cerebrospinal fluid circulation load and cranial cavity compensation space from the network, further calculates a brain tissue perfusion risk and a neural structure compression risk, and generates a corresponding nursing early warning signal and a physiological regulation path. According to the scheme, deep coupling and mechanism risk early warning of multiple physiological signals are achieved, and the postoperative complication risk can be recognized earlier and more accurately.

The invention discloses a cranial cavity rapid hemostasis instrument which comprises a sleeve, a conductive expansion and contraction piece and a push-pull rod connected with the conductive expansion and contraction piece, a through penetrating hole is formed in the sleeve, the push-pull rod can drive the conductive expansion and contraction piece to move in the penetrating hole, and the conductive expansion and contraction piece is electrically connected with an external power source through the push-pull rod. The conductive expansion and contraction piece is of a net-shaped structure, the conductive expansion and contraction piece can be contracted into a strip shape in the penetrating hole, the conductive expansion and contraction piece can be expanded into a sphere-like shape outside the penetrating hole, the conductive expansion and contraction piece comprises a plurality of first silk threads and a plurality of second silk threads, and the extending directions of the first silk threads and the second silk threads are arranged in a staggered mode. The first silk threads and the second silk threads are made of flexible conductive materials. According to the invention, medium injection is not needed, the expansion speed is high, the hemostasis efficiency is high, and the pressure distribution is uniform.

The invention relates to a cerebrospinal fluid dynamic monitoring management method. Comprising the following steps: performing mode identification by using dynamic characteristics of cerebrospinal fluid pressure and flow velocity; by monitoring the flow velocity and pressure fluctuation of cerebrospinal fluid in real time, a comparison library of a normal mode and an abnormal mode is established; deep learning is carried out by using a fluid mechanics model and a neural network, and abnormal points of non-linear change are identified; through combination of a pressure sensor array and a flow velocity sensor, dynamic flow changes are captured in different areas of a cerebrospinal fluid system including a ventricle and a subarachnoid space, and abnormal fluctuations are identified through continuous analysis of time sequence data; by analyzing the interaction between the intracranial flow mode of cerebrospinal fluid and the compression expansion effect of brain tissues, an intelligent adjustment mechanism based on the flow pressure coupling effect is introduced; under the influence of cerebrospinal fluid pressure changes, deformation of brain tissue including ventricular expansion influences blood flow and tissue pressure in other intracranial areas.

A system and method for high-resolution, non-invasive characterization of a cranial cavity and its contents through an intact skull.

The invention discloses a cerebrospinal fluid replacement and purification device, and relates to the field of medical equipment, the cerebrospinal fluid replacement and purification device comprises a pumping-in replacement system and a pumping-out replacement system, the pumping-in replacement system comprises a first liquid pump and a first storage bag, the pumping-out replacement system comprises a second liquid pump, a second storage bag and a third storage bag, the output end of the first liquid pump is connected with a first transmission pipeline, and the output end of the second liquid pump is connected with a second transmission pipeline; the first transmission pipeline is connected with the input end of the defoamer, the output end of the second liquid pump is connected with a second transmission pipeline, the second transmission pipeline is a three-way pipeline, and the other two ends of the second transmission pipeline are connected with the main filter and the standby filter respectively. Cerebrospinal fluid is filtered in a circulating replacement mode, stability of intracranial pressure is guaranteed, basic guarantee is provided for normal input and discharge of the cerebrospinal fluid, the environment in a cranial cavity is optimized, the mode of directly replacing artificial cerebrospinal fluid is replaced, only a small part of artificial cerebrospinal fluid is left in the cranial cavity, component balance of the cerebrospinal fluid cannot be affected, and the safety of the cranial cavity is improved. And the device is more suitable for different people.

The invention belongs to the field of micro-physiological systems, and discloses a human body micro-physiological system based on whole hPSC. Three-dimensional modeling is carried out according to the relative positions and sizes of the organs in the human body, partitioning is carried out according to different areas of the human body, the brain chamber is located in the cranial cavity area, the heart and double lung chambers are located in the thoracic cavity area, and the liver and double kidney chambers are located in the abdominal cavity area. The lung chambers are arranged on the two sides of the heart, the liver is arranged on the right of the front upper portion of the abdominal cavity area, and the kidney chambers are arranged on the rear lower portion, the left portion and the right portion of the abdominal cavity area and distributed in a splayed mode. Due to the fact that printing of a whole human body chip cannot be achieved through an existing 3D printing technology, and openness of all cavities needs to be reserved to facilitate cell loading, the strategy that 3D printing is conducted according to modules is adopted, and nine bionic modules including a head top module, a cranial cavity module, a thoracic cavity module, an abdominal cavity module, a hip-leg module, a forearm module and a shank module are included. And by adopting a double-channel design, all organ chambers are connected together, so that the information exchange of all organs is promoted.

The invention provides a semi-intrusive brain-computer interface device, which belongs to the technical field of brain-computer interfaces, and comprises an electroencephalogram signal acquisition unit, a signal processing unit, a decoding unit, a control interface unit and an external equipment unit which are electrically connected in sequence, the electroencephalogram signal acquisition unit adopts a flexible electrode structure, is configured to be implanted into a cranial cavity, does not penetrate through the cerebral cortex and is used for acquiring a cortex electroencephalogram signal; the signal processing unit is used for filtering, amplifying and digitally processing the electroencephalogram signals; the decoding unit is used for classifying and identifying the electroencephalogram signals; and the control interface unit supports a multi-mode interface. According to the invention, a semi-intrusive design is adopted, the invasiveness and safety are balanced, the full-intrusive rejection risk is also avoided, compared with a non-intrusive design, the signal analysis precision is improved, neural features of different patients are adapted in a personalized manner, fine regulation and control of an object track and force in a complex three-dimensional environment are realized, and the control limitation of a traditional system is solved.

The invention discloses a cerebrospinal fluid drainage control device with a sensor. The cerebrospinal fluid drainage control device comprises an intracranial pressure monitoring system, a signal processing system and a drainage bag lifting system. The intracranial pressure monitoring system comprises an intracranial pressure sensor and a body position sensor which are arranged in the cranial cavity and the head of a patient respectively. The signal processing system comprises a central processing unit and a signal conversion module and is connected with the sensor through a data line. The drainage bag lifting system comprises a lifting support and a driving unit, and automatic adjustment of the height of the drainage bag is achieved. According to the device, automatic adjustment of drainage pressure is achieved through real-time monitoring and intelligent processing.

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 invention discloses an intracranial hematoma ultrasonic smashing device, and relates to the field of medical equipment, the intracranial hematoma ultrasonic smashing device comprises an ultrasonic vibration rod, an attachment device and a backflow pipe, the backflow pipe is arranged at the end, away from the ultrasonic vibration rod, of the attachment device, and a backflow pipe inner cavity is formed in the backflow pipe; the rod end cover is provided with a discharge-in pipe and a suction-out pipe. By means of the device, ultrasonic smashing and discharging of intracranial hematoma can be achieved, cleaning and thorough effects are achieved, residues are avoided, blood clots can be fully adsorbed and discharged, the pressure of cerebrospinal fluid in a cranial cavity can be kept normal and cannot be blocked, the cerebrospinal fluid is purified in a trace suction and feeding mode, the intracranial pressure cannot be affected, and the intracranial hematoma can be purified in a trace suction and feeding mode. And the phenomenon of unstable intracranial pressure is avoided.

The application discloses a brain intracranial cavity segmentation method and device based on a U_Net model, and relates to the technical field of picture semantic segmentation.The application constructs a multistage down-sampling encoder and a corresponding up-sampling decoder in a U-shaped structure, adds an efficient attention mechanism to improve segmentation accuracy, and utilizes a multistage feature fusion module to fuse features; and the optimal segmentation model is trained on a training set.The down-sampling encoder fused with a residual block avoids the gradient vanishing phenomenon caused by excessively deep network, and the attention mechanism is introduced in the middle layer between the down-sampling and the up-sampling to further improve the sensitivity to the target region.Three sizes of convolution kernels are used to segment the image to improve the receptive field of the target region.The application has a deeper network and thus has stronger feature extraction capability, and can mine the target region in a more complex image.Multiple calculation modes make the model structure more flexible and variable, better adapt to business scenarios, and improve the generalization capability of the model.

The utility model discloses a multi-runner bone nail injection suite which comprises a bone nail and a microtube, a fluid channel is formed in the center of an inner cavity of the bone nail in the length direction of the bone nail, and the fluid channel can be connected with the microtube in a matched and inserted mode so that liquid guided in from the microtube can flow into a cranial cavity through the fluid channel; the fluid channel comprises a plurality of sub-runners which are communicated with one another, the radius of each sub-runner is gradually reduced along the length direction of the bone nail, and each sub-runner can be correspondingly matched and inserted with a micro-tube with the corresponding radius. The device fixes the liquid guide micro-tube through the fixing function of the bone nail, and the problem that injection in skull marrow is not firm in fixation and is easy to fall off by a common micro-needle is solved. And the runner in the bone nail consists of the sub-runners with different radiuses, and different diameters can correspond to micro-tubes with different diameters, so that the operation of frequently replacing the bone nail during injection is avoided, and the injury to the skull of the mouse is reduced.

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.

A method and device for reducing the damaging effects of a blast or concussive event includes applying pressure to at least one jugular vein to reduce the egress of blood from the cranial cavity during the incidence of the concussive event. Reducing blood out flow from the cranial cavity increases intracranial pressure of the cerebrospinal fluid to reduce the risk of traumatic brain injury and injuries to the spinal column. Reducing blood out flow further increases the intracranial pressure, and thereby increases the pressure of the cochlear fluid, the vitreous humor and the cerebrospinal fluid to thereby reduce the risk of injury to the inner ear, internal structure of the eye and of the spinal column. In addition, increasing intracranial pressure reduces the likelihood of brain injury and any associated loss of olfactory function.

The present invention discloses a posterior skull extension device and a method of using the same, comprising a transverse rod, a longitudinal rod, an L-shaped adjustment block, an auxiliary bar, a No. 1 adjustment block and a No. 2 adjustment block, wherein the No. 1 adjustment block and the No. 2 adjustment block are provided on the transverse rod, and the ends of the transverse rod and the longitudinal rod are fixed on the L-shaped adjustment block, and the No. 1 adjustment block is provided with a heightening block, and both the heightening block and the No. 2 adjustment block are provided with auxiliary bar holes, and the auxiliary bar is arranged in the auxiliary bar holes; the heightening block is fixed on the No. 1 adjustment block; the present invention has a bilaterally symmetrical structure, and is fixed to the posterior skull of the patient by titanium plates on the fixing block and the titanium plates on the auxiliary bar. After the posterior skull of the patient is cut open during surgery, the nut on the auxiliary bar is rotated; the auxiliary bar is pulled backward to achieve the backward extension of the posterior skull, increase the enlarged posterior cranial cavity, and facilitate surgical operations.

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.

The invention belongs to the technical field of medical apparatus and instruments, and provides a brain tumor interstitial cavity fluid circulation intervention device which comprises a brain intervention device, the brain intervention device is of a spherical net structure, and a collecting hole and a discharging hole are formed in the surface of the brain intervention device; the external circulator is used for being arranged under the scalp outside the craniocerebral cavity to provide power for circulation of interstitial cavity fluid and serving as an intervention portal; the auxiliary circulation assembly comprises an auxiliary circulator and an auxiliary intervention device, and the auxiliary intervention device is of a balloon structure with holes. The brain tumor interstitial cavity fluid circulation intervention device has the functions of accurately monitoring brain tumor evolution in real time, accurately diagnosing tumor recurrence in an early stage and directly and locally treating recurrent tumors, and is used for solving the technical problems of whole-course sampling monitoring and accurate diagnosis and treatment after brain malignant tumor operation; particularly, an interventional tool is provided for solving the technical problems of sampling monitoring, early precise diagnosis and direct local treatment in the recurrence and progression stage after brain malignant tumor treatment.

The present invention discloses a simulation training model for removing intracerebral hematomas and its preparation and use methods, which includes a 1:1 high-fidelity skull model and a brain model. The 1:1 high-fidelity skull model includes a lower model and an upper model, and the brain model is located in the cranial cavity between the lower model and the upper model. The brain model includes a high-fidelity brain tissue layer, a paraffin layer, and a blood clot layer. Both the paraffin layer and the blood clot layer are located within the high-fidelity brain tissue layer, and the blood clot layer is embedded in the paraffin layer. The paraffin layer is connected to a fixing wire inserted on the 1:1 high-fidelity skull model, and the other end of the fixing wire is located outside the 1:1 high-fidelity skull model. By adopting the simulation training model for removing intracerebral hematomas with the above structure, it is convenient to fix the blood clot at a specific position in the brain according to needs, has a long storage time, good simulation effect, and can be verified by CT for hematoma localization, greatly facilitating the learning and practice of removing intracerebral hematomas.

The invention relates to the technical field of traditional Chinese medicine compound ointment, and particularly discloses traditional Chinese medicine compound ointment based on four-cavity qi-blood coordinated regulation and a preparation process thereof. The compound ointment comprises the following raw materials in parts by weight: 6-15 parts of radix bupleuri, 9-18 parts of scutellaria baicalensis, 20-40 parts of codonopsis pilosula, 9-30 parts of fried perillaseed, 3-9 parts of pericarpium zanthoxyli, 6-12 parts of honey-fried licorice root, 15-30 parts of jujube, 5-10 parts of cassia twig, 15-30 parts of gypsum, 30-50 parts of raw oyster shell, 10-30 parts of semen plantaginis, 6-15 parts of cooked rhubarb and the like. The ointment prepared by the formula disclosed by the invention can realize four-cavity synergistic regulation and improve the qi and blood state of the whole body in a targeted manner. Through targeted regulation of qi and blood disorder states of a cranial cavity, a thoracic cavity, an abdominal cavity and a pelvic cavity of a human body, headache and insomnia caused by qi and blood rising of the cranial cavity, chest distress and breast nodules caused by qi stagnation and blood stasis of the thoracic cavity, abdominal distension and constipation caused by middle-jiao transportation loss of the abdominal cavity, and menstrual disorder caused by disorder of Chong and Ren meridians of the pelvic cavity can be effectively relieved; therefore, the dynamic balance of qi and blood of the whole body is realized, and the whole health of human body is powerfully guaranteed.

The application discloses a cervical pillow, which comprises an upper layer body and a lower layer body which are independent and connected, a plurality of partition strips are arranged in the upper layer body and the lower layer body, the upper layer body and the lower layer body are respectively divided into a cranial cavity area, a cervical vertebra supporting area and two side sleeping areas by the partition strips, the cranial cavity area and the cervical vertebra supporting area are located between the two side sleeping areas, the cranial cavity area is located at the back side of the cervical vertebra supporting area, different material gaskets and independent flowing particle bags are filled in each partition of the upper layer body, gaskets are filled in the lower layer body, and openings for taking and placing the gaskets and the independent flowing particle bags are arranged on the upper layer body and the lower layer body. The application can independently adjust the height, the hardness and the fitting degree of each area related to the sleeping posture, and the operation is simple and the use is limited little.

A spinal cord removal device including a suction tool including a tube, a high-pressure water hose connected to a water source, and a jetter nozzle attached to one end of the high-pressure water hose. The device is inserted into a cranial cavity or spinal cavity of an animal. When water is supplied to the device, water can break up the brain material or spinal material, flushing and cleaning the spinal cavity and cranial cavity.

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.