A61M27/006

SYSTEM AND METHOD FOR DRAINING CEREBROSPINAL FLUID IN HYDROCEPHALUS PATIENTS
20190105476 · 2019-04-11 ·

A system and related method are provided for draining cerebrospinal fluid from a bodily cavity of a patient, such as a ventricle in the brain in one application. The system includes a reservoir which may be a collapsible container configured for fluidic connection to a shunt located in the bodily cavity. The collapsible container may be an elastically deformable bladder in one embodiment. A pump is fluidly connected to the collapsible container and draws cerebrospinal fluid therefrom. A programmable controller directs the pump to repeatedly activate and deactivate at a predetermined time interval. A plurality of sensors may be provided which are communicably coupled to the controller for monitoring pump motor current draw, tension in the resilient body of the container, pressure, and orientation of the patient. The controller is configurable to deactivate the pump when abnormal operating conditions are detected by the sensors.

SYSTEMS AND METHODS FOR DEPLOYING AN IMPLANT IN THE VASCULATURE

Systems and methods for implanting an endovascular shunt in a patient is disclosed. The system having an expandable anchor configured for being deployed in a dural venous sinus of a patient at a location distal to a curved portion of a wall of an inferior petrosal sinus (IPS) of the patient; an elongate guide member coupled to, and extending proximally from, the anchor; a shunt delivery catheter having a first lumen configured to receive the guide member, and a second lumen extending between respective proximal and distal openings in the shunt delivery catheter, the shunt delivery catheter further having a penetrating element coupled to a distal end of the catheter; and the system further having a guard at least partially disposed over, and movable relative to, the penetrating element.

SYSTEMS AND METHODS FOR DEPLOYING AN IMPLANT IN THE VASCULATURE

Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.

Multiple section trocar

A medical device insertion system, and a method of using the system, to mate trocars inside a patient during a medical procedure, the system including a first trocar having a first end to insert into a patient, and a second end at which a first user control is provided, and a second trocar having a first end to insert into a patient, and a second end at which a second user control is provided, wherein the respective first ends of the first and second trocars are formed so as to mate to one another inside the patient to form a continuous path between the respective second ends.

Implantable bio-pressure transponder

An implantable subcutaneous device to measure internal body pressure and wirelessly transmit information corresponding to the measured internal body pressure, including a pressure sensor to sense pressure of a particular region of a body of a patient and output a pressure signal corresponding to the sensed pressure, an encoder to receive the pressure signal and encode a signal to produce a sensor information signal to be transmitted to an ex vivo receiver, a transceiver to receive the sensor information signal from the encoder and transmit the sensor information signal to the ex vivo receiver, and a biocompatible housing in which to enclose the pressure sensor, encoder, and transceiver.

Electronic Toolset to Locate, Read, Adjust, and Confirm Adjustment in an Implantable Bodily Fluid Drainage System Without Recalibrating Following Adjustment

A method of using an electronic toolset for locating, reading, adjusting and confirming adjustment of an implantable bodily fluid drainage system without requiring recalibration following adjustment from a current valve setting to a new valve setting using an electronic toolset including an adjustment tool having a magnetic element and an indicator tool including a sensor array. The need to remove the electronic toolset from the patient to recalibrate or zero the sensor array prior to confirming the new valve setting is eliminated. This is realized by disposing a ferromagnetic system component of the indicator tool in a magnet shield cage made of a metallic alloy to prevent magnetic fields produced by a magnetic element in the adjustment tool during the adjusting step from influencing the sensor array.

Programmable Drainage Valve with Fixed Reference Magnet For Determining Direction of Flow Operable With Analog or Digital Compass Toolsets
20190083763 · 2019-03-21 ·

A method for using an implantable programmable bodily fluid drainage valve including a fixed reference magnet and an adjustable valve unit having a pair of primary magnetic elements. In accordance with the present inventive method the implantable programmable bodily fluid drainage valve is operable using either an intended toolset including a sensor array for detecting a magnetic field or a non-intended toolset employing an analog type compass assembly instead of the sensor array, wherein a location of the fixed reference magnet in the implantable programmable bodily fluid drainage valve and size of the fixed reference magnet has substantially no negative influence on operation of the analog type compass assembly of the non-intended toolset when used to operate the implantable programmable bodily fluid drainage valve.

METHOD AND APPARATUS FOR TREATING THE BRAIN AND/OR SPINAL CORD USING A CATHETER
20190083302 · 2019-03-21 ·

A method for treatment of a brain and/or spinal cord includes inserting a flexible catheter into a cerebrospinal fluid space, the flexible catheter including two lumens adapted to allow a fluid to circulate therein in a closed loop within the flexible catheter and the flexible catheter being adapted to be connected to a device for cooling and circulating the fluid. The cerebrospinal fluid in the cerebrospinal fluid space is cooled with the flexible catheter to enable selective central nervous system cooling. The functional status of the brain and/or spinal cord is monitored, and the treatment of the brain and/or spinal cord is modified to adjust for any change in the functional status of the brain and/or spinal cord.

SELECTIVE CENTRAL NERVOUS SYSTEM TREATMENT CATHETER AND A METHOD OF USING THE SAME
20190083303 · 2019-03-21 ·

An apparatus and method use a catheter for specific and discriminate treatment of central nervous system disease. With the catheter, selective hypothermia to the brain and/or the spinal cord for injury protection can be achieved without the need for systemic cooling. The catheter is also capable of draining excess cerebrospinal fluid.

Electronic Toolset for Use With Multiple Generations of Implantable Programmable Valves With or Without Orientation Functionality Based on a Fixed Reference Magnet
20190083765 · 2019-03-21 ·

A method for using a universal electronic toolset for indicating and adjusting of an implantable programmable bodily fluid drainage valve regardless of whether the valve includes a fixed reference magnet used to determine an angle of orientation of the implantable programmable bodily fluid drainage valve or not. A magnetic field detection sensor array in an indicator tool of the electronic toolset determines whether the fixed reference magnet is present in the implantable programmable bodily fluid drainage valve. If the presence of the fixed reference magnet is detected then the center and direction of flow of the adjustable valve unit is ascertained via electronic feedback from the electronic toolset; otherwise, the center and direction flow is ascertained via exclusively by manual physical palpation of the valve.