Reading and adjusting tool for hydrocephalus shunt valve

摘要

A reading and adjustment tool for use with a valve having a pressure or flow setting adjustable to a plurality of pressure or flow settings is disclosed. The tool includes a signal generator and an excitation coil coupled to the signal generator. The signal generator includes an adjustment interface configured to generate an adjustment signal to adjust the pressure or flow setting and a reading interface to generate a reading signal to read the pressure or flow setting of the valve. At least one excitation coil is connected to the signal generator and configured to generate an oscillating electromagnetic field based on one of the adjustment signal and reading signal. A sense coil can include two portions positioned on either side of the at least one excitation coil to determine the pressure or flow setting of the valve.

主权项

1. A valve reading and adjustment tool for use with a valve having a pressure or flow setting adjustable to a plurality of pressure or flow settings, comprising:
a signal generator, comprising:
an adjustment circuit configured to generate an adjustment signal, wherein the valve, in response to the adjustment signal, adjusts a pressure or flow setting of the valve;a reading circuit configured to generate a reading signal, wherein the valve, in response to the reading signal, provides a response indicative of the pressure or flow setting of the valve; at least one excitation coil connected to the signal generator and configured to generate an oscillating electromagnetic field based on at least one of the adjustment signal and the reading signal received from the signal generator; and a sense coil, comprising:
a first sense coil portion positioned on a first side of the at least one excitation coil; anda second sense coil portion positioned on an opposite side of the at least one excitation coil than the first second coil portion.