WIRELESS COMMUNICATION OF PHYSIOLOGICAL VARIABLES USING SPREAD SPECTRUM

• US 20150238081A1
• Filed: 05/08/2015
• Published: 08/27/2015
• Est. Priority Date: 07/12/2004
• Status: Active Application

• Current Assignee: St. Jude Medical Coordination Center BVBA (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical Coordination Center BVBA (Abbott Laboratories Incorporated)
• Inventors: SAMUELSSON, Magnus, TULKKI, Sauli
• Application Number:
  US14/707,609
• Publication Number:
  US 20150238081A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02007 Evaluating blood vessel condition, e.g. elasticity, compliance
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/6851 Guide wires
• CPC Class Codes: A61B 5/7228 Signal modulation applied to the input signal sent to patient or subject; demodulation to recover the physiological signal modulation H03C
• CPC Class Codes: A61M 2025/09083 having a coil around a core
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

The present invention relates to a system and a method of measuring a physiological variable in a body. A basic idea of the present invention is to measure a physiological variable in a body by means of employing a sensor which is arranged to be disposed in the body for measuring the physiological variable. The sensor must be provided with a supply voltage in order to be operable. Therefore, a control unit disposed outside the body provides this supply voltage to the sensor. The control unit also receives, from the sensor, via a wired connection, signals that represent the physiological variables that are measured. The control unit is arranged with a communication interface and a modulator for wireless spread spectrum communication of the measured physiological variables for presentation purposes.

Claims

1. A system for measuring a physiological variable in a body, which system comprises:

a sensor arranged to be disposed in the body for measuring the physiological variable and to provide a signal representing the measured physiological variable;

a control unit arranged to be disposed outside the body; and

a wired connection between the sensor and the control unit to provide a supply voltage from the control unit to the sensor, and to communicate said signal from the sensor to the control unit,

wherein the control unit has a modulator for modulating a carrier signal with the reserved signal representing the measured physiological variable and a communication interface for wireless spread spectrum communication of the modulated signal.