Wireless medical probe

• US 20060047214A1
• Filed: 08/24/2004
• Published: 03/02/2006
• Est. Priority Date: 08/24/2004
• Status: Abandoned Application

• Current Assignee: Jacob Fraden
• Original Assignee: Jacob Fraden
• Inventors: Fraden, Jacob
• Application Number:
  US10/924,155
• Publication Number:
  US 20060047214A1
• Time in Patent Office: Days
• US Class Current: 600/513
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/02125 of pulse wave propagation time
• CPC Class Codes: G01K 13/20 Clinical contact thermometers for use with humans or animals
• CPC Class Codes: G01K 7/42 Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature
• CPC Class Codes: G01K 7/427 Temperature calculation based on spatial modeling, e.g. spatial inter- or extrapolation

Abstract

A wireless medical transducer that is attached to a patient'"'"'s body contains one or more sensing assemblies for continuous, wireless and non-invasive monitoring of vital signs. These include EKG, core temperature, arterial blood pressure, arterial blood oxygenation, and others. A transducer may be configured either as a two-unit device where the units are connected by a short cable or a single unit. Sharing various components allows different vitals signs to be monitored with greater efficiency. Multiple radio transmitters may operate in the same environment without interfering with each other.

Claims

1. A medical monitor for collecting, transmitting and receiving vital signs from surface of a patient body contains in combination

a first probe housing;

a first bottom portion of the first probe housing that contacts patient body;

a first sensor of a vital sign positioned adjacent to said first bottom portion;

a first electronic module positioned internally to first probe housing;

transmitter of electromagnetic radiation positioned internally to first probe housing;

a power supply positioned internally to first probe housing;

receiver of electromagnetic radiation that is detached from the first probe housing;

output device connected to said receiver.

2. A medical monitor of claim 1 further comprising a second probe housing attached to patient body and containing

a second sensor of a vital sign

second electronic module

a link for connecting to said first electronic module.

relating arterial blood pressure to said time delay

3. A medical monitor of claim 1, where

a first sensor is a first temperature sensor that is thermally insulated from said outer portion of the probe housing;

said probe housing further comprising a second temperature sensor positioned inside said probe housing and thermally insulated from first temperature sensor

4. A method of computing arterial pressure of a patient comprising steps of

obtaining EKG signal

obtaining plethysmographic signal

transmitting EKG and plethysmographic signals to a processing means;

measuring time delay between a rapid wave of the EKG signal and rapid slope of the plethysmographic signal

relating the measured time delay to patient'"'"'s arterial pressure

5. A method of computing arterial pressure of a patient comprising steps of

obtaining plethysmographic signal;

transmitting plethysmographic signals to a processing means;

measuring rate of a decaying slope of a plethysmographic signal;

relating said rate to patient'"'"'s arterial pressure