7 results about "Brain Ventricle" patented technology

Ventricular catheters and their methods of use are disclosed. In some embodiments, the disclosed ventricular catheters may reduce, or substantially prevent, obstruction of the catheter by astrocytes or other brain tissue due to adhesion and / or growth within the catheter. For example, in some embodiments, the holes and internal lumen of a ventricular catheter may be constructed such that the wall shear stresses applied within the holes and internal lumen of the catheter are greater than a threshold shear stress to prevent cell adhesion and growth within the catheter.

The invention discloses a rotary irrigation type magnetic drive brain pressure monitoring drug delivery and liquid storage bag for intracranial infection. The rotary irrigation type magnetic drive brain pressure monitoring drug delivery and liquid storage bag comprises an Oma bag, a drug storage bag, a drainage tube, an intracranial pressure probe, a magnetic sensitive ball, a one-way tube and the like. According to the device, three independent one-way circulation channels of medicine injection, pressure measurement and drainage are constructed, an in-vitro magnetic field is utilized to drive a magnetic sensitive ball to stir to form eddy current, ventricular purulent moss is scoured in a targeted manner, and medicine is uniformly dosed; the memory metal baffle is automatically opened and closed under negative pressure, and dead space pollution is reduced; and the probe wirelessly monitors the ICP in real time and gives out an over-limit alarm. Compared with a traditional Ommaya capsule, the infection and blockage rate is remarkably reduced, the replacement period is prolonged to 3-6 months from 1 month, and long-term, safe and accurate intracranial pressure management and drug delivery are achieved.

The invention discloses a multi-parameter monitoring pressure-adjustable recoverable hydrocephalus shunting device and a treatment method, and belongs to the technical field of medical instruments. The device comprises a shunt pipe assembly and a recovery device. The shunt tube assembly forms a cerebrospinal fluid shunt passage from a ventricle to veins, a front-end brain pressure monitoring module, an automatic pressure regulation flow rate valve, a central processing and transmission module and a multi-parameter function monitoring module are integrated, and automatic regulation and control of intracranial pressure and real-time monitoring of multiple parameters of thrombus, blood pressure and blood oxygen are achieved. The flow velocity of cerebrospinal fluid is autonomously adjusted through the automatic pressure adjusting flow velocity valve according to dynamic changes of intracranial pressure, traditional manual adjustment is replaced, and adjustment and control accuracy and timeliness are improved; meanwhile, the shunt tube is safely and conveniently replaced through a magnetic recovery structure, and operation wounds and infection risks are reduced. The system is suitable for precise treatment and postoperative comprehensive monitoring of adult hydrocephalus.

The present invention provides a novel method to isolate and expand pure neural stem cells (NSCs) from cerebrospinal fluid (CSF) of premature babies with Intraventricular haemorrhage, which produces a population enriched in NSC-CSF cells free of contaminating fibroblasts and other cell types. The present invention also includes substantially pure populations of CSF-NSC cells, and their use to treat and prevent diseases and injuries, including Intraventricular haemorrhage and post- hemorrhage hydrocephalus / developmental deficits.

The invention belongs to the technical field of medical instruments, and particularly discloses an intracranial drainage intelligent management and safety early warning device which comprises a mounting frame, and an adjusting and collecting device is arranged on the mounting frame and used for collecting cerebrospinal fluid; the drainage tube is connected to the adjusting and collecting device, and an insertion tube is arranged at the bottom end of the drainage tube and used for being inserted into the ventricle for drainage; and the adjusting mechanism is arranged between the drainage tube and the intubation tube. Limiting of the limiting structure on the drainage tube is relieved by rotating the protective cover, the length between the drainage tube and the intubation tube is adjusted by moving the drainage tube, then the length of the whole structure is adjusted, body positions of different patients, the spatial layout of a bed head and the installation position of an intelligent device are conveniently adapted, the length adjusting efficiency of the drainage tube is conveniently improved, and the practicability is high. The structural continuity, the overall reliability and the connection sealing performance of the pipeline are improved conveniently, and then the drainage efficiency is improved.

The invention discloses an external ventricular drainage device for monitoring intracranial pressure in real time and a use method thereof. The device comprises a drainage module, a pressure measuring module, a pressure regulating module and a liquid collecting module, the drainage module is used for leading cerebrospinal fluid out of the ventricle; the pressure measuring module is communicated with the drainage module and is used for measuring the pressure of cerebrospinal fluid, converting a pressure signal into an electric signal and displaying an intracranial pressure value in real time; reference height registration is set between the pressure measuring module and the pressure regulating module, so that the detection plane of the pressure measuring module corresponds to the zero point of the graduated scale of the pressure regulating module; the pressure regulating module is communicated with the drainage module, and the flow of cerebrospinal fluid led out by the drainage module is controlled by regulating the height of the shunt bottle; the liquid collecting module is communicated with the drainage module and is used for collecting the led-out cerebrospinal fluid. According to the invention, the monitoring precision, the operation intuition and the clinical safety of bedside external ventricular drainage can be improved, and the portability and the clinical adaptability are considered at the same time.

A catheter, in particular an external ventricular drainage catheter, for placement in a ventricular system, in particular of a human, for drainage of liquid, in particular of cerebrospinal fluid, from a ventricle of the ventricular system, includes a tubular body having an internal drainage lumen running along the tubular body for the drainage of the liquid and a port, arranged in a distal region of the tubular body, the port connecting the drainage lumen with an outside of the tubular body and outside of the catheter for the drainage of the liquid from the ventricle into the drainage lumen. The catheter further includes an ultrasonic sensor, or transducer, for emitting frontal ultrasound waves and detecting the frontal ultrasound waves reflected back to the at least one frontal ultrasonic sensor, in particular for obtaining a sonogram. The frontal ultrasonic sensor is arranged at a distal tip of said tubular body.