According to embodiments, a cerebrospinal fluid (CSF) shunt includes: an inlet configured to receive CSF from a spinal intradural space in a patient; a shunt body with a sidewall and a lumen within the sidewall, wherein the shunt body is configured to extend through an interstitial space and a vein wall, wherein the lumen is in fluid communication with the inlet; and a regulator outside of the lumen, wherein the regulator is configured to regulate a flow of the CSF from the inlet by passing a regulated portion of the CSF from the lumen and into a venous system of the patient.

The present invention operates to significantly reduce over or under drainage of cerebrospinal fluid (CSF) from the brain or spinal cord using an extraventricular drain (EVD) in the brain or lumbar drainage device (LDD) and automated intracranial pressure (ICP) monitoring. The present invention attaches the drainage catheter of the EVD to a flow controller or valve which controls the flow of CSF from the drainage catheter and is electronically controlled by a stepper motor communicating with a pressure transducer receiving pressure signals indicating an ICP without the need for constant manual re-leveling.

Apparatus and associated methods relate to a multimodal signal management system (MMSMS) that includes two or more electrodes, and a cerebrospinal fluid pressure (CSF) monitor enclosed within a housing implanted in the brain. In an illustrative example, the MMSMS, may, for example, include a conduit configured to provide fluid communication between the CSF-containing region in the brain and a remote location. Various embodiments may advantageously provide therapeutical CSF draining while monitoring electroencephalogram (EEG) and CSF pressure waveform information.

Systems, catheters, and methods for accessing and treating along the central nervous system are disclosed. An example method may manage inflammation of the patient to treat a condition of the patient by processing values related to one or more physiological parameters of a patent, identifying when an inflammation condition of the patient has reached a treatment condition based on the processed values, and automatically providing an indication that the inflammation condition has reached the treatment condition. An example indication may include actuation of a treatment protocol. The example method may be performed with an inflammation management system.

The present disclosure is drawn to antimicrobial implantable medical devices, and can include an implantable medical device, and an antimicrobial metal applied to an exterior surface of at least a portion of the implantable medical that is positionable within a body tissue or traverses the body tissue when surgically placed (using surgical instruments beyond merely a needle or catheter port) for implantation.

The invention relates to an implantable valve (1) for a drainage system for discharging cerebrospinal fluid, comprising: a valve housing (10) extending along a valve axis (A), an inlet (2) and an outlet (3) as well as a valve housing (10) surrounding an interior space (4), a valve body assembly (600) arranged in the interior (4) and movably arranged in the interior space (4), a first valve seat (5), wherein the valve body assembly (600) is configured to abut the first valve seat (5) to close a flow connection between the inlet (2) and the interior space (4) of the valve housing (10), a second valve seat (7) which faces the first valve seat (5), wherein the valve body assembly (600) is configured to abut the second valve seat (7) to close a flow connection between the outlet (3) and the interior space (4) of the valve housing (10), and a spring device (800) arranged in the interior space (4) which exerts a spring force on the valve body assembly (600) in the direction of the first valve seat (5).

An externally programmable shunt valve assembly that includes a magnetic rotor that is operable in response to an externally applied magnetic field and configured to increase or decrease the working pressure of the shunt valve assembly in finite increments.

An externally programmable shunt valve assembly that includes a motor having a rotor that is operable in response to an externally applied magnetic field and configured to increase or decrease the working pressure of the shunt valve assembly. The motor may further include a position sensing mechanism that allows a position of the rotor, and associated pressure setting of the valve, to be determined using an external magnetic sensor. In certain examples the motor further includes a mechanical brake that is magnetically operable between a locked position and an unlocked position and which, in the locked position, prevents rotation of the rotor.

Apparatus and associated methods relate to multi-modal fluid management module (MMFMM) including a conduit in fluid communication with a cerebrospinal fluid (CSF) filled region of the brain, two or more electrodes in electrical contact with a region of a brain or dura, and at least one optical emitter configured to emit light to a target spot within a brain. The light may, for example, include a wavelength suitable for optogenetics. The MMFMM may, for example, include at least one pressure sensor mechanically coupled to the conduit configured to measure intracranial pressure. In an illustrative example, the MMFMM may, for example, include a valve configured to control fluid flow in and out of the conduit. Various embodiments may advantageously provide a system to monitor and control intracranial pressure and monitor and stimulate electrical activity of the brain (e.g., brain activity).

The present invention provides devices and systems for detecting shunt malfunction. The detection devices employ ultrasound instrumentations to evaluate shunt malfunction. The detection devices can be coupled with pumps to provide consistent shunt valve and/or reservoir actuation for reliable readings. The devices can output a determination of a degree of shunt blockage and relative location of shunt blockage.