PATCH SENSOR SYSTEM FOR MEASURING VITAL SIGNS

• US 20050261598A1
• Filed: 07/18/2005
• Published: 11/24/2005
• Est. Priority Date: 04/07/2004
• Status: Abandoned Application

• Current Assignee: Triage Wireless, Inc. (Foxconn Technology Co., Ltd.)
• Original Assignee: Triage Wireless, Inc. (Foxconn Technology Co., Ltd.)
• Inventors: Banet, Matthew John, Zhou, Zhou
• Application Number:
  US11/160,957
• Publication Number:
  US 20050261598A1
• Time in Patent Office: Days
• US Class Current: 600/513
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 2560/0462 Apparatus with built-in sensors
• CPC Class Codes: A61B 2562/06 Arrangements of multiple sensors of different types
• CPC Class Codes: A61B 2562/166 the sensor is mounted on a specially adapted printed circuit board
• 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 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02125 of pulse wave propagation time
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/1112 Global tracking of patients, e.g. by using GPS
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: A61B 5/257 using adhesive means, e.g. adhesive pads or tapes
• CPC Class Codes: A61B 5/274 using snap or button fasteners
• CPC Class Codes: A61B 5/28 for electrocardiography [ECG]
• CPC Class Codes: A61B 5/6814 Head
• CPC Class Codes: A61B 5/6833 Adhesive patches

Abstract

The invention provides a system for measuring vital signs from a patient that includes: 1) a first adhesive patch featuring a first electrode that measures a first electrical signal from the patient; 2) a second adhesive patch featuring a second electrode that measures a second electrical signal from the patient; 3) a third adhesive patch, in electrical communication with the first and second adhesive patches, featuring an optical system that measures an optical waveform from the patient; and 4) a controller that receives and processes the first and second electrical signals and the optical waveform to determine the patient'"'"'s vital signs.

Claims

1. A system for measuring vital signs from a patient, comprising:

a first adhesive patch comprising a first electrode that measures a first electrical signal from the patient;

a second adhesive patch comprising a second electrode that measures a second electrical signal from the patient;

a third adhesive patch, in electrical communication with the first and second adhesive patches, comprising an optical system that measures an optical waveform from the patient; and

a controller that receives and processes the first and second electrical signals and the optical waveform to determine the patient'"'"'s vital signs.

2. The system of claim 1, wherein the optical system comprises a light-emitting diode and an optical detector.

3. The system of claim 2, wherein the optical system further comprises a substrate, and the light-emitting diode and optical detector are disposed on a same side of the substrate.

4. The system of claim 3, wherein the optical detector is aligned to detect radiation first emitted from the light-emitting diode and then reflected from the patient'"'"'s skin to generate the optical waveform.

5. The system of claim 1, wherein the controller further comprises an algorithm configured to process the first and second electrical signals to generate an electrical waveform.

6. The system of claim 5, wherein the controller further comprises an algorithm that processes the electrical waveform and the optical waveform to calculate a blood pressure value.

7. The system of claim 6, wherein the controller further comprises an algorithm that determines blood pressure by processing:

1) a first time-dependent feature of the optical waveform;

     2) a second time-dependent feature of the electrical waveform; and

     3) a calibration parameter.

8. The system of claim 1, wherein the third adhesive patch further comprises a connector configured to connect to a detachable cable.

9. The system of claim 8, further comprising a detachable cable that connects the first electrode comprised by the first adhesive patch and the second electrode comprised by the second adhesive patch to the connector comprised by the third adhesive patch.

10. The system of claim 1, further comprising a cable that connects the third adhesive patch to the controller.

11. The system of claim 1, wherein the third adhesive patch further comprises a first wireless component, and the controller further comprises a second wireless component configured to communicate with first wireless component.

12. The system of claim 1, wherein the controller is connected directly to the third adhesive patch.

13. The system of claim 1, wherein the optical system further comprises a first light-emitting diode that emits radiation that generates a first optical waveform, and a second light-emitting diode that emits radiation that generates a second optical waveform.

14. The system of claim 13, wherein the first light-emitting diode is configured to emit red radiation, and the second light-emitting diode is configured to emit infrared radiation.

15. The system of claim 14, wherein the controller further comprises an algorithm that processes the first and second optical waveforms to generate a pulse oximetry value.

16. The system of claim 14, wherein the controller further comprises an algorithm that processes at least one of the first and second optical waveforms to generate a heart rate value.

17. The system of claim 1, wherein the controller further comprises an algorithm that processes the first and second electrical signals to generate an ECG waveform.

18. The system of claim 1, wherein the third adhesive patch further comprises a third electrode that measures a third electrical signal from the patient.

19. The system of claim 18, wherein the controller further comprises an algorithm that processes the first, second, and third electrical signals to generate an ECG waveform.