Reading and adjusting tool for hydrocephalus shunt valve

• Main Authors: HEI, JAMIE, JAQUIER, PIERRE, MAYOR, LAETITIA, MURPHY, JOHN MURDOCK, PRISCO, JOHN R
• Format: Patent
• Language: English
• Published: 16.06.2016
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HUMAN NECESSITIES; HYGIENE; LIGHTING; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

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. COIL ASSEMBLY 34 58 58a READING PART I -EXCITATION COIL 7REA DI NG P A RT ll1 58b SIGNAL GENERATOR 32 RELAY 54 36 CAPACITOR(S INDUCTOR(S) ADJUSTMENT READING DRIVE DRIVE CIRCUIT 60 CIRCUIT 64 50--/ 52