WIRELESS OPTICAL PULSIMETRY SYSTEM FOR A HEALTHCARE ENVIRONMENT

• US 20120165688A1
• Filed: 12/28/2010
• Published: 06/28/2012
• Est. Priority Date: 12/28/2010
• Status: Abandoned Application

• Current Assignee: YIP, Inc.
• Original Assignee: YIP, Inc.
• Inventors: Liu, Raymond, Kao, Wei-Fong
• Application Number:
  US12/979,651
• Publication Number:
  US 20120165688A1
• Time in Patent Office: Days
• US Class Current: 600/500
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B

Abstract

The present invention provides a wireless optical pulsimetry system for a healthcare environment comprising a pulse sensor, a USB receiver, and a software. The pulse rate and location information are transmitted from the pulse sensor to the monitoring computer in order to know physiological information of a user in healthcare facilities.

Claims

1. A wireless optical pulsimetry system for a healthcare environment comprising:

a pulse sensor for measuring a pulse rate of a user to transmit a pulse signal;

a USB receiver for receiving the pulse signal wirelessly from one or more pulse sensors and transmitting localization information of a user who wears the pulse sensor to a monitoring computer by transmitting means; and

a monitoring software running on the monitoring computer for displaying the pulse rate and the localization information of a user by display means.

2. The wireless optical pulsimetry system as claimed in claim 1, wherein the pulse sensor comprises:

an optical finger probe is used for collecting a pulsatile signal of the user;

a 4-stage pulsatile signal amplifier circuit for amplifying the pulsatile signal obtained from the optical finger probe;

a microprocessor for processing the pulsatile signal, calculating a pulse rate from the pulsatile signal, and transmitting the pulse rate; and

a wireless transceiver module for receiving the pulse rate from the microprocessor and for wireless transmitting the pulse rate to the USB receiver.

3. The wireless optical pulsimetry system as claim in claim 2, wherein the optical finger probe comprises:

a coiled cable is retractable and flexible for fitting different hand sizes of the user;

a soft tip worn on a finger of the user as a ring for measuring the pulsatile signal of the user; and

a adaptor for fixing the coiled cable on the pulse sensor.

4. The wireless optical pulsimetry system as claim in claim 3, wherein the soft tip comprises:

an optical sensing apparatus functioning as a plethysmographic sensor consisting of light emitting and detecting elements;

a well providing a space for the optical sensing apparatus embedded;

a strap with bulged stripe for adjusting the ring size of the soft tip;

a plastic buckle for fixing the strap;

a latch for tying up the strap overhung; and

a curved structure for fitting a shape of the finger to enhance the contact between the optical sensing apparatus and the finger.

5. The wireless optical pulsimetry system as claim in claim 4, wherein the optical sensing apparatus provides real-time pulsatile signal to the 4-stage pulsatile signal amplifier circuit by means of sensing infrared absorption changes due to vascular volume change in the finger.

6. The wireless optical pulsimetry system as claimed in claim 1, wherein collecting of pulse rate wirelessly from one or more pulse sensors is based on Zigbee technology.

7. The wireless optical pulsimetry system as claimed in claim 6, wherein frame data of the Zigbee technology includes a sensor number of the pulse sensor and the pulse rate data.

8. The wireless optical pulsimetry system as claimed in claim 1, wherein the transmitting means comprises:

a pulse sensor for sending the pulse rate to any USB receiver in its wireless coverage;

a USB receiver for receiving the pulse rate from the pulse sensor and using an embedded wireless signal strength indicator to estimate the distance between the pulse sensor and the USB receiver; and

a USB extender or wireless repeater for transmitting the information from the USB receiver to the monitoring computer.

9. The wireless optical pulsimetry system as claimed in claim 1, wherein the display means comprise:

a display software for displaying the pulse rate data, location information, movement of the pulse sensor, status of a wireless signal, and profile of the user;

an adjustable audible and visual alarm for raising the user attention when the pulse rate data exceeds a pre-set limit or; and

a naming function device for setting the localization information of the USB receiver.

10. The wireless optical pulsimetry system as claimed in claim 1, wherein the healthcare environment includes a hospital, nursing home, home, or other healthcare facilities.

11. The wireless optical pulsimetry system as claimed in claim 1, further comprises a first-line screening function used in healthcare environments for finding a user with abnormal pulse rate data that might be caused by complex physiological abnormality.

12. The wireless optical pulsimetry system as claimed in claim 1, further comprises a multi vital signs recorder for collecting and transmitting multiple vital signs to the monitoring computer.

13. The wireless optical pulsimetry system as claimed in claim 1, wherein the wireless optical pulsimetry system is a real-time wireless optical pulsimetry system for monitoring the user in a real-time manner.