52 results about "Cerebrospinal Fluid Drainage" patented technology

The object of providing a cerebrospinal fluid drainage system 1 which reacts precisely to changes in pressure in the cerebrospinal fluid, with ease of operation, is achieved by the present invention in that a pump 5 is used for draining the cerebrospinal fluid (liquor), wherein operating measured values supplied by sensors act as controlled variable for the operation of the pump. The pressure in the liquor line currently measured by a pressure sensor 10, the liquor pressure in the intracranial cavity being treated, measured intracorporeally by a pressure sensor, and/or the volume of liquor already pumped out, as operating measured value, can, for example, serve as the basis for operational control of the pump of the liquor drainage system. The liquor drainage system according to the invention has the advantage that the liquor is drained not only simply on the basis of the excess pressure in the intracranial cavity being treated, but is actively pumped out of the intracranial cavity in a controlled manner, in particular with constant measurement of the liquor pressure. In this way the pumping capacity can be regulated depending on requirement and the drainage pressure or the liquor pressure kept reliably within a specific pressure range.

A novel ventricular catheter designed to reduce CSF shunt obstruction is disclosed comprising a tip using a membrane without any opening and capable of filtering the CSF. When the CSF flows through the membrane, neither tissue (choroid plexus, blood cells, tumor cells, suctioned ependymal tissue) nor proteins can break through the membrane, making this ventricular catheter capable of preventing obstruction from tissue invasion but also preventing clogging from protein precipitation, coagulation or flocculation along the downstream shunt system.

An intelligent cerebrospinal fluid drainage control and recognition warning system mainly comprises a microcomputer system (1), a flow control device (2), an infrared drop number sensor (3), a color recognition sensor (4), a pressure sensor (5), a communication module (6), a human-computer interaction interface (7) and a radio frequency recognition device (13). The intelligent cerebrospinal fluid drainage control and recognition warning system can independently set the discharge speed, the drainage amount per unit time, the drainage time interval and the drainage pressure of cerebrospinal fluid according to individual differences of patients or clinical needs so as to achieve fixed-speed discharge, quantitative discharge, timed discharge and personalized-pressure discharge of the cerebrospinal fluid; meanwhile, in the drainage process, the color recognition sensor (4) can make timely prewarning when the cerebrospinal fluid has a hemoglobin reaction.

The invention discloses a self-adaption encephalic cerebrospinal fluid drainage device which comprises a drainage catheter (1), a connecting catheter (2) and a liquid storage device (3). A drainage controller (6) is arranged on the connecting catheter (2); a pressure sensor (13) is arranged at the front end of the drainage catheter (1) and connected with the drainage controller (6) through a data line (12); the pressure sensor (13) is used for monitoring encephalic pressure and sending monitored pressure information to the drainage controller (6); the drainage controller (6) is used for controlling the drainage speed and drainage amount of liquid in the drainage catheter (1) according to the pressure information sent by the pressure sensor (13). The self-adaption encephalic cerebrospinal fluid drainage device can continuously monitor the encephalic pressure change condition of a patient in real time, the drainage amount can be precisely adjusted dynamically according to the monitoring result, and the drainage amount is precisely measured and controlled through a flowmeter.

The invention discloses a spinal puncture teaching model, belonging to the field of medical teaching. The spinal puncture teaching model comprises a spinal puncture model, a puncture needle, a cerebrospinal fluid flow guide device, an operation control circuit and a flexible drainage pipe, wherein the spinal puncture model consists of a lumbar vertebrae bone, a sacral vertebrae bone and a round pipe; a pressure sensor is arranged in the round pipe; a needle handle is provided with a side through pipe and a straight through pipe; the cerebrospinal fluid flow guide device consists of a liquid storage tank, a liquid feeding port, a liquid discharging port, cerebrospinal-fluid drainage liquid, a micropump, a micropump power supply circuit and a hydrops depth control floater; the operation control circuit consists of a power supply, a position indicating circuit and a hydrops depth control floater; and the position indicating circuit consists of a pressure sensor, an in-place indicating lamp and a relay. The spinal puncture teaching model disclosed by the invention has the beneficial effects that the effects of convenience, durability and intuition can be achieved, the notification of the operation practice working and the finishing condition information of spinal puncture can be directly realized, the repeated use can be achieved, and the purpose that the spinal puncture teaching model can bear the practice of repeated operation and training is realized.

The invention provides a cerebrospinal fluid drainage apparatus, which comprises a drainage tube, a liquid storage bottle and an air pump, wherein the near end of the drainage tube, the liquid storage bottle and an air inlet of the air pump are sequentially connected by virtue of pipes; the liquid storage bottle can be used for accommodating liquid; and the liquid, at least before the liquid storage bottle is full of the liquid, is prevented from flowing into the air inlet of the air pump. According to the cerebrospinal fluid drainage apparatus provided by the invention, a cerebrospinal fluid drainage rate can be controlled in an entire operation, so that brain tissue injury caused by too quick decompression of cerebral ventricle is prevented.

The invention discloses a rechargeable implantable automatic pressure regulating and diverting system with a program control function, and belongs to the field of medical instruments. The system includes a passage control valve, a pressure sensing system, a self-generating energy collecting system, an external control system and a drainage tube. Through the pressure feedback of the pressure sensing system and the adjustment of the external control system, the passage control valve adjusts the opening pressure or flow of a hydrocephalus valve, and drains intracranial cerebrospinal fluid to another suitable position in the body through the drainage tube, electricity required by various systems is supplied by the self-generating energy collecting system, and the drain tube is provided with ananti-freezing and antibacterial drug coating layer. The system can monitor the intracranial pressure in real time, adjust the pressure autonomously, effectively reduce related complications such as excessive or insufficient diversion, drain tube clogging, infection and the like.

The invention relates to a closed in-vitro ventricular drainage apparatus, which comprises two pipelines which are bent in the form of right angles and an analyzer which is arranged outside the pipelines, wherein the two pipelines, which are bent in the form of the right angles, include a first pipeline and a second pipeline; a horizontal part of the first pipeline is connected to a cerebrospinal fluid drainage tube which is close to a ventricular end; a vertical part of the second pipeline is connected to a drainage bag; a vertical part of the first pipeline communicates with a horizontal part of the second pipeline; a piston is arranged in the vertical part of the first pipeline; a spring is connected to the lower surface of the piston; the tail end of the spring is fixedly connected to the bottom of the vertical part of the first pipeline; a baroreceptor is arranged at the inner side of the pipe wall of the vertical part of the first pipeline; the baroreceptor is connected to the analyzer; and capillaries are arranged on the horizontal part of the second pipeline. The closed in-vitro ventricular drainage apparatus provided by the invention can overcome shortcomings in the prior art which adopts open drainage and fails to accurately monitor change in intracranial pressure, and the drainage apparatus is capable of conducting pressure monitoring and heart rate monitoring in vitro and is strong in intuitivity.

The invention discloses a mechanical cerebrospinal fluid drainage pressure-adjusting device. The mechanical cerebrospinal fluid drainage pressure-adjusting device includes: a pressure infusion tube device, wherein the pressure infusion tube device defines a first accommodation cavity, the first accommodation cavity can hold part of cerebrospinal fluid provisionally, and the pressure infusion tubedevice is used for controlling if the cerebrospinal fluid in the first accommodation cavity flows out or not; a non-pressure infusion tube device, wherein the non-pressure infusion tube device definesa second accommodation cavity and is used for adjusting the pressure of the pressure infusion tube device; a connection device, wherein one end of the connection device is connected to the pressure infusion tube device, and the other end of the connection device is connected to the non-pressure infusion tube device. The cerebrospinal fluid in the first accommodation cavity can flow into the second accommodation cavity through the connection device. The mechanical cerebrospinal fluid drainage pressure-adjusting device may be fixed on a head of a patient, the head position of the patient will not influence on a drainage effect, nursing is very convenient, and the mechanical cerebrospinal fluid drainage pressure-adjusting device is safe and reliable to use.

The invention discloses an intracranial pressure monitoring method and device. The monitoring method comprises the steps that a pressure sensor is connected with a pressure measuring probe, and a pressure transmission path from a thin film to the pressure sensor is formed; the pressure measuring probe is implanted into the ventricle of a patient, and intracranial pressure is conducted to the thinfilm of the pressure measuring probe by using cerebrospinal fluid in the ventricle; the cerebrospinal fluid pressure change is converted into a grating signal through the pressure sensor; the gratingsignal is transmitted to a photoelectric analysis module through an optical fiber, so that the photoelectric analysis module converts the grating signal into an electric signal; and digital-to-analogue conversion is carried out on the electric signal to obtain a pressure waveform representing the intracranial pressure and the pressure waveform is displayed. Operation such as drainage can be carried out while monitoring is carried out, due to the fact that the size of the pressure measuring probe is relatively small, and meanwhile an optical fiber sensor and the corresponding optical fiber arerelatively thin, drilling insertion of the pressure measuring probe can be achieved, detection is carried out according to the medium conduction principle, the principle of a communicating vessel is not needed, operation is easy, and cerebrospinal fluid drainage can be carried out synchronously.

A cerebrospinal fluid drainage. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

The invention relates to a controlling and monitoring device for external drainage of cerebrospinal fluid. The controlling and monitoring device mainly consists of a host (1) and a fixed adjusting device, wherein the host (1) mainly consists of a core processing module, a flow speed control device (4), a flow sensor (5), a pressure sensor (6), a communication module, a human-computer interaction interface and a medical information recognition device (8). According to the embodiment of the invention, different drainage modes can be quickly selected on the man-machine operation interface according to individual differences of patients, intelligent control of the drainage state is realized according to independently set drainage parameters, and safety and metering accuracy of drainage of the cerebrospinal fluid are improved.

The invention relates to a newborn multifunctional safety type lumbar puncture catheter needle with scales, and belongs to the field of medical apparatuses and instruments. The lumbar puncture catheter needle comprises a central steel needle core and an outer side hollow hose catheter needle; the total length of a puncture needle is 4 cm, the length of the front needle body is 3.0 cm, and the length of butterfly-shaped both wings of the tail end is 1 cm. The total length of the central steel needle core part is 4.2 cm, puncturing is facilitated due to the sharp needle tip, and the central steel needle core is 0.2 cm longer than the front end of the outer side hollow hose catheter needle. The needle tip end is provided with a round blunt slope and slants to the steel needle core, the outerside hose catheter needle is matched with the inner side steel needle core, and the handle end of the outer side hose catheter needle is matched with a thread of the inner side of the handle end of the steel needle core. The needle can easily puncture into skin and subcutaneous tissue, tissue damage is not easily caused, and the infection probability caused by repeated puncture damage and repeatedpuncture is lowered. The newborn multifunctional safety type lumbar puncture catheter needle can be used as a puncture sheathing canal needle during continuous cerebrospinal fluid drainage of a lumbar puncture indwelling catheter; due to the tearable design, after the catheter indwells successfully, the outer catheter needle can be torn off gradually along the butterfly-shaped both wings.

A cerebrospinal fluid drainage monitoring device disclosed by the present invention comprises a sickbed, a connecting plate and a monitoring assembly body, the sickbed is internally provided with a connecting rod, the right end face of the connecting rod is provided with a handle, the outer side of the connecting rod is provided with a connecting block, and the upper end face of the connecting block is fixedly connected with a mounting rod. A supporting rod is arranged at the left end of the sickbed, a connecting block is arranged on the outer side of the supporting rod, a connecting groove is formed in the inner side of the connecting block, a limiting rod is installed in the connecting block, a drainage bottle is connected to the outer side of the connecting block, a catheter is arranged at the lower end of the drainage bottle, and a supporting frame is arranged at the left end of the supporting rod. And a monitoring assembly body is arranged at the upper end of the supporting frame. According to the cerebrospinal fluid drainage monitoring device, the speed can be monitored in real time, constant pressure and constant speed during drainage can be guaranteed, the head of a patient is fixed, long-time stable drainage can be determined, and meanwhile the height of a drainage bottle can be conveniently adjusted.

The invention provides a cerebrospinal fluid drainage automatic speed testing and automatic pulse cleaning system. The system comprises a shell body, the inside of the shell body comprisesa droplet monitoring device, ahydrops side one-way pump, a normal saline side one-way pump, a connection rod, a gear, a drive gear, a motor, and a computer control chip, the hydrops side one-way pump comprises ahydrops cavity and a synchronization piston left arranged in the hydrops cavity, the normal saline side one-way pump comprises a normal saline cavity and a synchronization piston right arranged in the normal saline cavity; the hydrops cavity is divided into a hydrops cavity C and a hydropscavity D by the synchronization piston left, the normal saline cavity is divided intoa normal saline cavity A and a normal saline cavityB by the synchronization piston right; the power output end of the motor is connected with the drive gear, the drive gear and the gear are meshed, the gear is connected with the connection rod, and the connection rod is connected with the synchronization pistons. The automatic monitoring function of the system continuously monitorsthedripping speed of the cerebrospinal fluid drainage, eliminates the problem that may arise when manual monitoring is not discovered in time and may affect patient treatment.

The invention discloses a cerebrospinal fluid drainage device and method. The cerebrospinal fluid drainage device comprises a drainage tubeline, a flow velocity sensor, a flow regulator and a drainagecontrol system, wherein the drainage control system comprises a man-machine interaction module and a drainage control module; the man-machine interaction module is used for inputting an expected flowvelocity/flow velocity range and an expected drainage amount, recording and displaying patient personal information, treatment information, a historical cerebrospinal fluid flow velocity and a current cerebrospinal fluid flow velocity, and judging a drainage state according to the current cerebrospinal fluid drainage amount and a real-time fluid flow velocity; and the drainage control module controls the flow regulator according to the current drainage state so as to enable the real-time fluid flow velocity to be equal to the expected flow velocity or fall into the expected flow velocity range or controls the current drainage to be paused/ended. The cerebrospinal fluid drainage device is simple in structure, automatic pressure and velocity regulation of automatic cerebrospinal fluid drainage can be achieved by directly improving a traditional cerebrospinal fluid drainage device, the pressure and velocity control precision is high, the product is reliable, and the use is convenient.

A control system and method for automatically adjusting the height of an external ventricular drain from a patient. The height of a pole supporting the bag into which the fluid is drained can be varied, increased or decreased, as driven by a motor. A drip chamber and collection bag that receive the fluid from the patient are attached to the height variable pole. An external fluid pressure tube is coupled to the patient at one end and to a pressure sensor at the other. The pressure sensor is coupled to the height variable pole. The system includes a feedback loop that adjusts the height of the external ventricular drain (EVD) to match the height of the patient's head. As the patient's head moves up or down, the variable height pole moves up and down a corresponding distance to maintain the patient's intracranial or intraspinal pressure, and therefore the cerebrospinal fluid (CSF) drainage rate, at a preset value.

The invention discloses a cerebrospinal fluid drainage device and method based on intracranial pressure monitoring, and relates to the technical field of medical instruments. The device comprises a drainage tube, a drainage bag and a lifting device, a drainage opening is formed in the head end of the drainage tube, a branch tube is arranged on a tube body of the drainage tube, and an intracranial pressure monitoring device is connected into the branch tube; the tail end of the drainage tube is connected with a sample reserving tube and a connecting hose; a three-way valve is arranged at the joint of the tail end of the drainage tube, the sample reserving tube and the connecting hose; the drainage bag is connected with one end of the connecting hose, and a water drop flow velocity detection device is arranged on the drainage bag; the lifting device is connected with the drainage bag, a control system is arranged in the lifting device, the control system is in communication connection with the intracranial pressure monitoring device and the water drop flow speed detection device, and the control system controls operation of the lifting device so as to drive the drainage bag to move up and down. According to the cerebrospinal fluid drainage device and method based on intracranial pressure monitoring, the height of the drainage bag is automatically adjusted according to the monitored pressure value and the water drop flow speed.

The invention relates to the technical field of medical appliances and discloses a cerebrospinal fluid drainage tube and a cerebrospinal fluid drainage device. The cerebrospinal fluid drainage tube isused for solving the technical problem of related technologies that rise of intracranial pressure is easily caused during cerebrospinal medicine injection drainage. The cerebrospinal fluid drainage tube comprises a main tube, wherein a medicine injection chamber, a drainage chamber and a diversion chamber are arranged in the main tube in a spaced manner, the main tube comprises a drainage end anda connecting end, the drainage end is provided with a medicine injection hole communicating with the medicine injection chamber and a drain hole communicating with the drainage chamber, elastic support parts communicating with the diversion chamber are arranged on the main tube close to positions of the medicine injection hole and the drain hole, and diameters of the elastic support parts after charged inflation are greater than a tube diameter of the main tube. The cerebrospinal fluid drainage tube and the cerebrospinal fluid drainage device can be applied to cerebral surgical operations.

The invention discloses a comprehensive nursing intervention device for a lumboperitoneal shunt cerebrospinal fluid drainage surgery. The comprehensive nursing intervention device comprises a back plaster, a drainage tube assembly and a guiding out assembly, wherein the back plaster is adhered to the waist on the back surface of a human body; the guiding out assembly is used for draining cerebrospinal fluid in a positive pressure form; the drainage tube assembly comprises a drainage tube and a guiding needle; the guiding needle is arranged at one end of the drainage tube, and is inserted intothe lumboperitoneal shunt; the other end of the drainage tube is connected with the guiding out assembly; the guiding out assembly comprises an inner tube, an outer tube, a diaphragm, a discharge tubeand a fluid gathering bag; the top of the inner tube is connected with the drainage tube; the diaphragm is arranged in the tube adjacent to the bottom, of the inner tube; the outer tube is embedded to the bottom of the inner tube in a sleeving manner; the bottom of the outer tube is closed; a plurality of flow passing holes are formed in the lower end side surface of the inner tube, and through the flow passing holes, space below the diaphragm can communicate with the inner part of the outer tube; pressure matching fluid is injected in the outer tube, and is in contact with the lower surfaceof the diaphragm; one end of the discharge tube is inserted into the inner tube from the side surface and extends downwards to be in contact with the upper surface of the diaphragm; and a through holefacing the diaphragm is formed in the bottom end surface of the discharge tube, and the other end of the discharge tube is connected with the fluid gathering bag.

The invention discloses an intelligent cerebrospinal fluid external drainage monitoring system which comprises a processing module, a flow speed control device, a flow sensor, a pressure sensor, a temperature sensor, a micro camera, a communication module, a medical information recognition device and a man-machine interaction module. The processing module is electrically connected with the flow speed control device, the flow sensor, the pressure sensor, the temperature sensor, the micro camera, the communication module, the alarm device, the medical information recognition device and the man-machine interaction module, different drainage modes can be selected according to individual differences and illness conditions of patients, intelligent control over the drainage state is achieved, the safety, the metering accuracy, the pertinence and the reliability of cerebrospinal fluid drainage are improved, the medical informatization level is improved, the nursing work intensity is reduced, the hospital management efficiency is improved, and good clinical value and social significance are achieved.