Medical sensor

• US 20060149149A1
• Filed: 02/02/2004
• Published: 07/06/2006
• Est. Priority Date: 02/05/2003
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Schmid, Alfons
• Granted Patent: US 7,379,764 B2
• Time in Patent Office: Days
• US Class Current: 600/473
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure

Abstract

The present invention relates to a medical sensor (1) for measuring pulse, blood, tissue and/or skin parameters by means of electromagnetic waves in the transmission or reflection method. The sensor (1) has a strip- and/or band-shaped carrier part (2) which carries at least one transmitter element and at least one receiver element. In order that the sensor (1) can be used on a patient more than once and is sufficiently secured against relative movements with respect to a body part, the carrier part (2), on an inner side (9) provided to make contact with the body part, has at least two adhesive bodies (25, 26) which are spaced apart from one another and during measurement adhere to the body part, while the rest of the inner side (9) is designed to be essentially non-adhesive with respect to the body part.

Claims

1. A medical sensor for measuring pulse, blood, tissue and/or skin parameters by means of electromagnetic waves in the transmission or reflection method, having a strip- and/or band-shaped carrier part which carries at least one transmitter element and at least one receiver element, wherein the carrier part, an inner side provided to make contact with a body part of a patient, has at least two adhesive bodies which are spaced apart from one another and during measurement adhere to the body part, where the rest of the inner side is designed to be essentially non-adhesive with respect to the body part.

2. A sensor as claimed in claim 1, wherein

two adhesive bodies are provided,

the first adhesive body covers the at least one transmitter element,

the second adhesive body covers the at least one receiver element,

the two adhesive bodies are permeable to the waves emitted by the at least one transmitter element.

3. A sensor as claimed in claim 2, wherein

the at least one transmitter element is arranged in the carrier part, with a transmitter opening being made in the carrier part, through which transmitter opening the at least one transmitter element emits waves during measurement, the first adhesive body being arranged in the transmitter opening and/or

the at least one receiver element is arranged in the carrier part, with a receiver opening being made in the carrier part, through which receiver opening the at least one receiver element receives waves during measurement, the second adhesive body being arranged in the receiver opening.

4. A sensor as claimed in claim 3, wherein

the first adhesive body adheres to the at least one transmitter element and/or

the second adhesive body adheres to the at least one receiver element.

5. A sensor as claimed in claim 3,

the first adhesive body completely fills the transmitter opening and/or

the second adhesive body completely fills the receiver opening.

6. A sensor as claimed in claim 1, wherein the adhesive bodies consist of a gel-like adhesive compound.

7. A sensor as claimed in claim 1, wherein the adhesive bodies consist of an adhesive that is not hardened and does not harden during the service life of the sensor.

8. A sensor as claimed in claim 1, wherein the carrier part is designed to be elastically compressible in the direction of its thickness, such that the carrier part can be compressed at the time of application to the body part, such that restoring forces press the inner side of the carrier part against the body part.

9. A sensor as claimed in claim 1, wherein the carrier part has a multilayer structure and, between two textile layers, one of which forms the inner side of the carrier part and the other of which forms an outer side of the carrier part, has at least one layer of foamed material that can be elastically compressed in the direction of the thickness.

10. A sensor as claimed in claim 1,

wherein the carrier part has a first textile layer that forms the inner side of the carrier part, on which there is arranged a first layer of foamed material that can be elastically compressed in the direction of the thickness, on which there is arranged a second layer of foamed material that can be elastically compressed in the direction of the thickness, on which there is arranged a second textile layer that forms an outer side of the carrier part,

where the at least one transmitter element and the at least one receiver element are arranged between the layers of foamed material,

where the first textile layer and the first layer of foamed material have a transmitter opening and a receiver opening through which the at least one transmitter element emits waves during transmission and the at least one receiver element receives waves.

11. A sensor as claimed in claim 10, characterized

in that the at least one transmitter element and the at least one receiver element are arranged between a first adhesive film and a second adhesive film,

in that the adhesive films are arranged between the layers of foamed material,

in that the first adhesive film has a transmitter opening and a receiver opening.

12. A sensor as claimed in claim 9, wherein the layers of the multilayer carrier part are adhesively and/or thermally bonded to one another.

13. A sensor as claimed in claim 1, wherein the carrier part has a hook and loop fastening element comprising a hook element having hooks and a loop element having loops.

14. A sensor as claimed in claim 13, wherein the hook element is designed as a tongue which at one end is arranged between the layers of foamed material or between the adhesive films and at the other end projects beyond the layers of foamed material.

15. A sensor as claimed in claim 13, wherein the loop element is formed by an upper side of the second textile layer which forms the outer side of the carrier part.

16. A sensor as claimed in claim 1,

wherein the at least one transmitter element and the at least one receiver element are arranged on the carrier part on a longitudinal center line of the carrier part and spaced apart from one another in the longitudinal direction of the carrier part

and wherein the carrier part has two lateral notches that lie opposite one another in the center, with respect to its longitudinal direction, between the at least one transmitter element and the at least one receiver element.

17. A sensor as claimed in claim 1, wherein a projection which sticks out to the side is formed on the carrier part, to which projection cables are attached which lead to the at least one transmitter element and to the at least one receiver element.

18. A medical sensor comprising:

a carrier part;

a receiver located on a portion of said carrier part;

a transmitter located on a portion of said carrier part;

at least two adhesive bodies, wherein one adhesive body covers the receiver and another adhesive body covers the transmitter,

wherein the receiver and the transmitter are spaced apart from one another.

19. The medical sensor of claim 18, wherein said at least two adhesive bodies are comprised of a gel-like adhesive material.