Extended life disposable pulse oximetry sensor and method of making

• US 5,891,026 A
• Filed: 01/29/1996
• Issued: 04/06/1999
• Est. Priority Date: 01/29/1996
• Status: Expired due to Term

• Current Assignee: Philips Electronics North America Corporation (Koninklijke Philips N.V.)
• Original Assignee: NTC Technology, Inc. (Dixtal Medical, Inc.)
• Inventors: Wang, Huisun, Rich, David R., Feldman, Barry J.
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Assistant Examiner(s): CARTER, RYAN CHRISTOPHER
• Application Number:
  US08/592,919
• Time in Patent Office: 1,163 Days
• Field of Search: 128/633, 128/664-667, 128/632, 128/637, 600/309-310, 600/322-324, 600/344, 600/473, 600/476-479
• US Class Current: 600/344
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/411 Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance
• CPC Class Codes: A61B 5/6833 Adhesive patches

Abstract

An oximetry sensor comprising a foam wrap member including a fastener, back film mounting member, LED assembly and photodiode connected to a cable, support rings for the LED assembly and photodiode, window film for the LED assembly and photodiode, and a top liner.

Claims

1. An oximetry sensor comprising:

an elongated substantially planar, hole-free foam wrap member including a fastener having a plurality of hooks thereon, the foam wrap member having a foam portion substantially enclosed by a fabric member, the fastener attached to one end of the elongated substantially planar foam wrap member;

an LED assembly and a photodiode;

a window film for covering the LED assembly and the photodiode; and

a top liner secured to a portion of the foam wrap member adjacent the other end thereof, the top liner securing the LED assembly and the photodiode in position on the foam wrap member.

2. The oximetry sensor of claim 1, further comprising:

a back film mounting member.

3. The oximetry sensor of claim 2, further comprising:

support rings for the LED assembly and the photodiode.

7. The oximetry sensor of claim 2, wherein the back film mounting member is adhesively secured to a portion of the foam wrap member.

8. The oximetry sensor of claim 1, further comprising:

a cable connected to the LED assembly and the photodiode.

9. The oximetry sensor of claim 1, wherein the fabric portion of the foam wrap member includes a plurality of loops therein to engage the plurality of hooks located on the fastener.

10. The oximetry sensor of claim 1, wherein the top liner is adhesively secured to a portion of the window film.

11. The oximetry sensor of claim 1, wherein the LED assembly and the photodiode are connected to a cable having a connector on one end thereof.

12. The oximetry sensor of claim 11, wherein the cable includes a connector on one end thereof.

4. The oximetry sensor of claim 4, wherein the support rings are adhesively secured to a portion of the window film.

5. The oximetry sensor of claim 4, wherein the support rings are adhesively secured to a portion of the back film mounting member and the window film.

6. The oximetry sensor of claim 4, wherein the support rings are adhesively secured to a portion of the back film mounting member and a portion of the window film.

13. A method making an oximetry sensor, wherein the method comprises the steps of:

securing at least two support rings to one side of a piece of window film;

securing a photodiode within one of the support rings;

securing an LED assembly within the other of the support rings;

adhesively securing a back film mounting member to a portion of a foam wrap member; and

adhesively securing a porion of the window film to a portion of the back film mounting member.

14. The method of claim 13, wherein the method includes the step of:

securing a top liner to the other side of the window film.

15. The method of claim 13, wherein the method includes the step of:

attaching a portion of a cable to the photodiode; and

attaching a portion of a cable to the LED assembly.

16. An oximetry sensor comprising:

an elongated hole-free foam wrap member including a fastener secured thereto having a plurality of hooks thereon, the foam wrap member having a foam portion substantially enclosed by a fabric portion, the fastener attached to one end of the elongated foam wrap member;

a back film mounting member attached to a portion of the foam wrap member adjacent the other end thereof;

an LED assembly and a photodiode, the LED assembly and the photodiode attached to a portion of the back film mounting member;

a window film covering the LED assembly and the photodiode, the window film secured to a portion of the back film mounting member; and

a top liner attached to a portion of the back film mounting member, the window film covered by the top liner.

17. The oximetry sensor of claim 16, wherein the back film mounting member is adhesively secured to a portion of the foam wrap member.

18. The oximetry sensor of claim 16, wherein the fabric portion of the foam wrap member includes a plurality of loops therein to engage the plurality of hooks located on the fastener.

19. The oximetry sensor of claim 16, wherein the sensor further comprises:

support rings for the LED assembly and the photodiode, the support rings adhesively secured to a portion of the window film.

20. The oximetry sensor of claim 16, wherein the sensor further comprises:

support rings for the LED assembly and the photodiode, the support rings adhesively secured to a portion of the back film mounting member and the window film.

21. The oximetry sensor of claim 18, wherein the top liner is adhesively secure to a portion of the window film.

22. The oximetry sensor of claim 16, wherein the window film is transparent to red and infrared light.

23. A method making an oximetry sensor, wherein the method comprises the steps of:

providing a foam wrap member;

providing a photodiode on the foam wrap member;

providing a LED assembly on the foam wrap member;

adhesively securing a window film the foam wrap member covering the LED assembly and the photodiode on the foam wrap member.

24. The method of claim 23, wherein the method includes the step of:

securing a top liner to the other side of the window film.

25. The method of claim 23, wherein the method includes the step of:

attaching a portion of a cable to the photodiode; and

attaching a portion of a cable to the LED assembly.

26. An oximetry sensor comprising:

an elongated foam wrap member including a fastener having a plurality of hooks thereon, the foam wrap member having a foam portion substantially enclosed by a fabric member, the fastener attached to one end of the elongated foam wrap member;

an LED assembly and a photodiode located on the elongated, foam wrap member; and

a top liner secured to a portion of the foam wrap member adjacent the other end thereof, the top liner securing the LED assembly and the photodiode in position on the foam wrap.