Disclosed is a system including a flow regulating system. The flow regulating system may assist in ensuring a selected pressure within an inlet volume. The flow regulator may be included in a shunt assembly. The shut assembly may include an inlet catheter configured to assist in maintaining an open flow path therethrough.

A brain disease treatment device includes a first tube and a second tube which has an outer diameter smaller than an inner diameter of the first tube, can be arranged in an inner cavity of the first tube, and can move in the inner cavity of the first tube. The first tube is inserted into a subarachnoid space of a patient and discharges cerebrospinal fluid present in the subarachnoid space out of a body of the patient through a space between the inner cavity of the first tube and the outer side of the second tube. The second tube is inserted into the subarachnoid space and injects fluid through an inner cavity of the second tube into the cerebrospinal fluid present in the subarachnoid space. An end portion of the second tube is exposable from an end portion of the first tube in a longitudinal direction of the first tube.

A blood clot removal system for removing blood clots from the vascular system of a patient, the blood clot removal system comprising a blood clot removal device having a blood flow passageway to be connected to the patient's vascular system to allow circulation of the patient's blood through the blood flow passageway, a filter provided in the blood flow passageway for collecting blood clots occurring in the blood flowing through the blood flow passageway, and a cleaning device for moving blood clots collected by the filter out of the blood flow passageway; and a heart pump connected to the blood flow passageway.

Magnetic-based electronic valve readers for determining a location and orientation of magnets coupled to implantable medical devices to determine a setting of the device (e.g., setting of a fluid flow control valve of the medical device). The electronic valve readers include an orientation sensing mechanism that is provided and configured to enable the electronic valve reader to: 1) allow for internal offset calculation of an orientation change of the electronic valve reader during a reading process; and/or 2) during the reading process, provide an indication or warning to the clinician that the orientation of the electronic valve reader has changed to an extent at or exceeding a predetermined angular acceptance threshold or window. Systems including the disclosed electronic valve readers and methods of reading a setting of the device are also disclosed.

A hermetically sealed biocompatible pressure sensor module configured for implant at a desired site at which a pressure is to be measured. Anodic bonding of the pressure module package components which have similar thermal coefficients of expansion provides low stress bonding and maintains long term reliability, dependability and accuracy. The pressure sensor module includes a pressure sensitive membrane which is in direct contact with the environment at which a pressure is to be measured. The pressure sensor module forms a part of a pressure measuring system which uses a telemetry link between the pressure sensor module and an external controller for data transmission and transfer. Operating power for the pressure sensor module is provided by the external controller and an internal rechargeable energy storage component. Accordingly, the pressure measuring system provides a dual stage power and data transfer capability for use with an implantable system. An exemplary use of the pressure sensor module is in a three pressure sensor system including a flow control valve in a shunt to treat hydrocephalus. The use of integrated circuit chips and an internal coil with an optional ferrite core in the pressure sensor module provides for low power consumption and reliable signal processing. An embodiment of the invention includes a pressure sensor and associated electromagnetic coils embedded in the tip portion of the shunt for measuring the pressure of fluid externally of the shunt at the tip portion.

A high-strength steel sheet and a method for manufacturing a high-strength steel sheet having excellent phosphatability and excellent corrosion resistance after electrodeposition coating has been performed, even in the case where the contents of Si and Mn are high. The method may comprise annealing a steal sheet by using a continuous annealing method, performing a heating process, controlling the maximum end-point temperature of a steel sheet in the annealing furnace, controlling the traveling time of the steel sheet, and controlling the dew point of the atmosphere.

A device for regulating blood pressure in a heart chamber is provided. The device includes a shunt positionable within a septum of the heart. The shunt is designed for enabling blood flow between a left heart chamber and a right heart chamber, wherein the flow rate capacity of the device is mostly a function of pressure in the left heart chamber.

An implantable drainage device is provided. The device is adapted to move body fluid from one part of the body of a patient to another part of the body.

An implantable drainage device is provided. The device is adapted to move body fluid from one part of the body of a patient to another part of the body. The invention also extends to a filter adapted to filter particles from a drained fluid.

A medical device tunneling system, and a method of using the same, to subcutaneously route trocars, also commonly referred to as tunnelers, or introducers, having a cannula, stylet, and a guidewire stylet, inside a patient during a surgical procedure, such as a ventriculoperitoneal hydrocephalus shunt implantation, from a proximal entry point to a distal end point, in order to subcutaneously route and implant a medical device, such as shunt tubing, in a patient.