Sensor and radiance based diagnostics

• US 7,359,741 B2
• Filed: 12/08/2005
• Issued: 04/15/2008
• Est. Priority Date: 11/15/1999
• Status: Expired due to Fees

• Current Assignee: SPO Medical Equipment, Ltd. (SPO Global, Inc.)
• Original Assignee: SPO Medical Equipment, Ltd. (SPO Global, Inc.)
• Inventors: Sarussi, Israel
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US11/296,389
• Publication Number:
  US 20060089547A1
• Time in Patent Office: 859 Days
• Field of Search: 600/310, 600/322, 600/323, 600/324, 600/340, 600/344
• US Class Current: 600/310
• CPC Class Codes: A61B 2562/146 for optical coupling
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters

Abstract

The present invention provides a sensor for radiance based diagnostics of body tissues comprising a performing component and an adhering component, the performing component comprising at least one radiance source for radiating a tissue and at least one detector for detecting rays emitted from the radiance source. The adhering component is capable of fastening the performing component to a tissue such that the radiance source and detector are facing and contiguous with the tissue, and such that when operative, the adhering component hermetically fastens the performing component to the tissue to the extent that the detector only receives rays which are reflected from within the tissue. The sensor may include a controlling device which senses external conditions and which is capable of controlling the sensor in response to the sensed conditions. The sensor may also be in communication with an electronic circuit, which may control the radiance source and/or detector and perform analysis of the data received by the detector.

Claims

1. A sensor, for radiance based diagnostics, comprising a performing component and an adhering component,

said performing component comprising:

a lower and an upper surface;

at least one radiance source for radiating a tissue; and

at least one detector for detecting rays reflected from within said tissue;

wherein said adhering component comprises a sealable lower surface having a greater surface area than the surface area of the performing component, said sealable lower surface configured to surround and adhesively adhere to the upper surface of the performing component, the lower surface of said performing component extending beyond the lower sealable surface of the adhering component;

wherein said performing component comprises means to block the detector from the radiance source so that rays emitted from the radiance source are unable to reach the detector through any other medium except reflected from the tissue;

wherein the lower sealable surface of the adhering component is adhesively attachable to the tissue to form an indentation in the tissue, the surface area of said indentation corresponding to the lower surface of the performing component, said indentation preventing external light from being detected by said at least one detector; and

wherein said sensor further comprises a controlling device capable of sensing and responding to external conditions and capable of controlling sensor components operation said controlling device being a pressure or proximity detector configured to enable sensor operation only when the performing component is fastened to the tissue to the extent that the detector only receives rays which are reflected from the tissue.

2. A sensor according to claim 1 wherein the adhering component is a tape of adhering material framing the performing component and which, when fastening the performing component to the tissue, contacts the tissue.

3. A sensor according to claim 1 wherein the adhering component is a tape which, when fastening the performing component to the tissue, overlays the performing component and contacts the tissue.

4. A sensor according to claim 1 wherein the adhering component is formed as part of the performing component and contacts both the performing component and the tissue.

5. A sensor according to claim 1 wherein the performing component further comprises a partition in between the radiance source and the detector.

6. A sensor according to claim 5 wherein the partition further surrounds either radiance source or detector or both.

7. A system for radiance based diagnostics comprising a sensor and an electronic circuit in communication with the sensor components and capable of controlling the sensor components operation, said sensor comprising a performing component and an adhering component,:

said performing component comprising;

a lower and an upper surface;

at least one radiance source for radiating a tissue;

at least one detector for detecting rays reflected from said tissue; and

wherein said adhering component comprises a sealable lower surface having a greater surface area than the surface area of the performing component, said sealable lower surface configured to surround and adhesively adhere to the upper surface of the performing component, the lower surface of said performing component extending beyond the lower sealable surface of the adhering component;

wherein said performing component comprises means to block the detector from the radiance source so that rays emitted from the radiance source are unable to reach the detector through any other medium except reflected from the tissue;

wherein the lower sealable surface of the adhering component is adhesively attachable to the tissue to form an indentation in the tissue, the surface area of said indentation corresponding to the lower surface of the performing component, said indentation preventing external light from being detected by said at least one detector; and

wherein the sensor further comprises a controlling device capable of sensing and responding to external conditions and which controlling device is capable of being in communication with sensor components, electronic circuit or both, wherein the controlling device is a pressure or proximity detector which enables operation of the sensor when the performing component is fastened to the tissue to the extent that the detector only receives rays which are reflected from the tissue.

8. A system according to claim 7 wherein the electronic circuit is in communication with and is capable of controlling the operation of either radiance source or detector or both.

9. A system according to claim 7 wherein the adhering component is a tape of adhering material framing the performing component and which, when fastening the performing component to the tissue, contacts the tissue.

10. A system according to claim 7 wherein the adhering component is a tape which, when fastening the performing component to the tissue, overlays the performing component and contacts the tissue.

11. A system according to claim 7 wherein the performing component further comprises a partition in between the radiance source and the detector, thereby to prevent light being received by the detector directly from the radiance source.

12. A system according to claim 11 wherein the partition further surrounds either radiance source or detector or both.

13. A system according to claim 7 wherein the electronic circuit controls the sensor component'"'"'s operation.

14. A system according to claim 7 wherein the electronic circuit is programmed to operate in accordance with specific conditions communicated by the controlling device.