Implantable Real-Time Oximeter To Determine Potential Strokes And Post-Traumatic Brain-Injury Complications

• US 20150073240A1
• Filed: 03/14/2013
• Published: 03/12/2015
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: University of Rochester
• Original Assignee: University of Rochester
• Inventors: Huang, Jason Haitao, Dayawansa, Samantha
• Granted Patent: US 10,004,438 B2
• Time in Patent Office: Days
• US Class Current: 600/325
• CPC Class Codes: A61B 2562/0238 Optical sensor arrangements for performing transmission measurements on body tissue
• 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 5/02433 for infrared radiation
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/1459 invasive, e.g. introduced into the body by a catheter A61B5/1464 takes precedence
• CPC Class Codes: A61B 5/6876 Blood vessel
• CPC Class Codes: A61B 5/6884 Clamps or clips
• CPC Class Codes: A61B 5/6885 Monitoring or controlling sensor contact pressure

Abstract

A first embodiment of an oximetry probe is attached around a blood vessel near the site of a likely stroke. That will be useful to monitor large and medium size cerebral arteries. Another type of pulse oximeter can be passed within cerebral blood vessels to monitor the oxygenation status of the surrounding cerebral tissues. In that version, the emitter and detector are coplanar and contained in a small area, e.g., 50-12 μm.

Claims

1. An implantable pulse oximetry probe comprising:

an emitter for emitting light;

a detector for detecting the light; and

an attachment for attaching the emitter and the detector around a blood vessel such that the emitter and the detector are on opposite sides of the blood vessel.

2. The probe of claim 1, wherein the emitter emits the light at at least two wavelengths.

3. The probe of claim 2, wherein the at least two wavelengths are in the red and infrared ranges.

4. The probe of claim 1, wherein the probe is configured such that the probe completely surrounds the blood vessel.

5. The probe of claim 4, further comprising cushions for separating the emitter from the detector.

6. The probe of claim 4, further comprising a covering around the emitter and the detector.

7. The probe of claim 6, further comprising a hook attached to the cover for suturing the probe to tissue.

8. The probe of claim 1, wherein the probe is configured such that the probe partially surrounds the blood vessel.

9. The probe of claim 8, further comprising a tube to which the emitter and the detector are attached, the tube having an opening for allowing the tube to be clipped onto the blood vessel.

10. The probe of claim 1, wherein the emitter and the detector are concave.

11. An implantable pulse oximetry probe comprising:

an emitter for emitting light;

a detector for detecting the light; and

an attachment for attaching the emitter and the detector within a lumen of a blood vessel.

12. The probe of claim 11, wherein the emitter emits the light at at least two wavelengths.

13. The probe of claim 12, wherein the at least two wavelengths are in the red and infrared ranges.

14. The probe of claim 11, wherein the attachment is configured to attach the emitter and the detector within the lumen such that the emitter and the detector are coplanar.

15. The probe of claim 11, wherein the attachment is configured to attach the emitter and the detector to a side of the blood vessel.

16. The probe of claim 15, wherein the attachment is configured to attach the emitter and the detector to the side of the blood vessel such that the emitter emits the light out of the blood vessel into surrounding tissue and such that the detector detects the light from the surrounding tissue.

17. The probe of claim 15, wherein the attachment comprises a sleeve for the emitter and the detector.

18. The probe of claim 17, wherein the attachment further comprises a touch sensor for detecting that the probe is attached to the side of the blood vessel.