Adhesive patch for monitoring acoustic signals

• US 8,911,383 B2
• Filed: 12/16/2008
• Issued: 12/16/2014
• Est. Priority Date: 12/20/2007
• Status: Active Grant

• Current Assignee: Acarix A/S (Acarix AB)
• Original Assignee: Acarix A/S (Acarix AB)
• Inventors: Christensen, Claus Bo Voge, Rong, Weimin
• Primary Examiner(s): SZMAL, BRIAN SCOTT
• Application Number:
  US12/809,564
• Publication Number:
  US 20110034831A1
• Time in Patent Office: 2,191 Days
• Field of Search: 600/300, 600/515, 600/586, 600/509, 600/544, 600/546, 600/481, 600/484, 600/488, 600/502, 600/529, 600/528, 381/151, 128/903
• US Class Current: 600/586
• CPC Class Codes: A61B 2562/0204 Acoustic sensors
• 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 5/6833 Adhesive patches
• CPC Class Codes: A61B 7/006 Detecting skeletal, cartilage or muscle noise A61B7/003 and A61B7/008 take precedence
• CPC Class Codes: A61B 7/04 Electric stethoscopes microphones, acoustic transducers therefor H04R

Abstract

An adhesive patch for monitoring acoustic signals from a human or animal body, comprising a skin contact surface, converting means for recording the acoustic signals and converting it to a first electric output signal, and an adhesive element for attaching the converting means to the skin surface, the patch further comprises transmitting means for transmitting the output signal to a peripheral device.

Claims

1. An adhesive patch for monitoring acoustic signals from a human or animal body comprising an adhesive part and a converting part being releasably connectable to each other via a first connecting means and a second connecting means, wherein the adhesive part is provided with an adhesive surface adapted for providing a skin contacting surface and a non-adhesive outer surface which faces away from the skin contacting surface, and the adhesive part has a through-going opening which provides communication from the outer surface of the adhesive part to the skin contacting surface, and the converting part comprises a converting means, provided with a skin contacting surface, for recording the acoustic signals and converting them to a first electric output signal and transmitting means for transmitting the output signal to a peripheral device;

and when the converting part is connected to the adhesive part, where the converting means being arranged in said opening such that the skin contacting surface of the converting means and the skin contacting surface of the adhesive part come into contact with a skin surface as the adhesive patch is attached to a skin surface of a user, and that the adhesive part is provided with a compression structure at the skin contacting surface, wherein the compression structure is in the form of one or more protrusions that project out from the skin contacting surface and positioned around the converting means.

2. An adhesive patch according to claim 1, wherein the patch further comprises a microprocessor for processing the first electric output signal and converting the first electric output signal to at least a second electric output signal.

3. An adhesive patch according to claim 1 wherein said converting part comprises a housing having a cylindrical wall and a back wall where the walls define an inner cavity housing a pressure management element, in the form of resilient foam.

4. An adhesive patch according to claim 1, wherein the adhesive part is a disposable part and the converting part is a reusable part.

5. An adhesive patch according to claim 1, wherein the compression structure is constructed to increase surface tension of the skin of the user.

6. An adhesive patch according to claim 1, wherein the compression structure is constructed for maintaining the pressure between the skin surface and the converting means stable.

7. An adhesive patch according to claim 1, wherein the compression structure is formed as a tapered surface area providing an increase in thickness of the adhesive part where the adhesive part is thinner in the area in a radial direction away from the opening and increases in thickness the closer the area is to the opening.

8. An adhesive patch according to claim 1, wherein the compression structure is in the form of a circular protrusion on the skin contacting surface of the adhesive part.

9. An adhesive patch according to claim 1, wherein the adhesive part comprises an acoustic conducting layer formed of an acoustic conducting material that is provided as a coating that envelopes at least a part of an external surface of the converting means.

10. An adhesive patch according to any preceding claim, wherein the converting means includes at least one microphone.

11. An adhesive patch according to claim 10, wherein the at least one microphone is a silicon microphone or a pressure sensitive contact microphone.

12. A method for monitoring acoustic signals from a human or animal body, the method comprising:

attaching an adhesive patch according to claim 1 to a skin surface of a human or animal body;

recording the acoustic signals of the human or animal body;

converting them to a first electrical output signal using the converting means; and

transmitting the output signal to a peripheral device via the transmitting means.