Device to Aid in Diagnosing Infiltration or Extravasation in Animalia Tissue

• US 20140303474A1
• Filed: 04/04/2014
• Published: 10/09/2014
• Est. Priority Date: 04/08/2013
• Status: Abandoned Application

• Current Assignee: ivWatch, LLC
• Original Assignee: ivWatch, LLC
• Inventors: Warren, Gary P., Alley, Matthew S., Garriz, Javier A., Naramore, William J., Bonnema, Garret T.
• Application Number:
  US14/245,548
• Publication Number:
  US 20140303474A1
• Time in Patent Office: Days
• US Class Current: 600/407
• 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 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02042 Determining blood loss or bleeding, e.g. during a surgical procedure
• CPC Class Codes: A61B 5/441 Skin evaluation, e.g. for skin disorder diagnosis
• CPC Class Codes: A61B 5/6825 Hand
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/6848 Needles
• CPC Class Codes: A61M 2005/1588 having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 5/14232 Roller pumps
• CPC Class Codes: A61M 5/16836 by sensing tissue properties at the infusion site, e.g. for detecting infiltration detecting tissue temperature for diagnostic purposes A61M39/0247

Abstract

An aid to diagnosing at least one of infiltration and extravasation in Animalia tissue includes an optics bench and a controller. The optics bench includes a light emitting diode and a photodiode. The light emitting diode is configured to emit a first light signal, and the photodiode is configured to detect a second light signal. The second light signal includes a portion of the first light signal that is at least one of reflected, scattered and redirected from the Animalia tissue. The controller includes a processor, volatile memory and non-volatile memory. The non-volatile memory stores a sequence of values that correspond to the second light signal detected by the photodiode. The processor and volatile memory analyze the sequence of values according to an algorithm.

Claims

1. A device to aid in diagnosing at least one of infiltration and extravasation in Animalia tissue, the device being coupled by a cable with a sensor disposed on an epidermis of the Animalia tissue, the device comprising:

a housing having an exterior surface and defining an interior space;

a keypad being disposed on the exterior surface;

an optics bench being disposed in the interior space, the optics bench including—

a light emitting diode configured to emit a first near-infrared signal; and

a photodiode configured to detect a second near-infrared signal, the second near-infrared signal including a portion of the first near-infrared signal that is at least one of reflected, scattered and redirected from the Animalia tissue; and

a notification section being disposed on the exterior surface;

a processor being disposed in the interior space and communicating with the keypad, the optics bench and the notification section;

non-volatile memory being disposed in the interior space and communicating with the processor; and

an input/output section communicating with the processor.

2. The device of claim 1 wherein the input/output section is partially disposed in the interior space and partially disposed on the exterior surface.

3. The device of claim 1, comprising a power controller coupled with at least one of the optics bench, the notification section, the processor, the non-volatile memory and the input/output section.

4. The device of claim 3 wherein the power controller comprises a battery disposed in the interior space.

5. The device of claim 3 wherein the power controller is coupled to an alternating current source spaced from the housing.

6. The device of claim 1, comprising a clamp configured to couple and decouple the housing with respect to a post.

7. The device of claim 1, comprising a bail coupled to the housing and configured to support the cable.

8. The device of claim 1 wherein the keypad comprises at least one hard key.

9. The device of claim 8 wherein the at least one hard key comprises a ON/OFF button and a MUTE button configured to silence the notification section.

10. The device of claim 1 wherein the keypad comprises at least one soft key configured to have an assigned function described by the notification section.

11. The device of claim 10 wherein the keypad comprises at least one hard key.

12. The device of claim 1, comprising an operational amplifier and an analog-to-digital converter, wherein the operational amplifier and analog-to-digital converter couple the processor and the photodiode.

13. The device of claim 12, comprising a gain control coupled to the operational amplifier.

14. The device of claim 13 wherein the amplifier has a gain of approximately 0.5 million volts per ampere to approximately 35 million volts per ampere.

15. The device of claim 1 wherein the optics bench comprises a transceiver supporting the light emitting diode and photodiode in a fixed arrangement.

16. The device of claim 15 wherein the transceiver is configured to mate with a plug disposed at an end of the cable.

17. The device of claim 1 wherein the notification section comprises at least one of a visual indicator and an audible indicator.

18. The device of claim 1 wherein the notification section comprises a display configured to indicate indicia.

19. The device of claim 18, comprising a display driver coupling the processor and the display.

20. The device of claim 1 wherein the notification section comprises at least one lamp.

21. The device of claim 1 wherein the notification section comprises a speaker configured to output at least one of a tone, a melody, and a synthesized voice.

22. The device of claim 21, comprising an audio amplifier and a digital-to-analog converter, wherein the audio amplifier and digital-to-analog converter couple the processor and the speaker.

23. The device of claim 1, comprising volatile memory communicating with the processor.

24. The device of claim 1 wherein the processor is configured to run an algorithm stored in the non-volatile memory.

25. The device of claim 1 wherein the processor comprises at least a portion of the non-volatile memory.

26. The device of claim 1 wherein the non-volatile memory comprises at least one of a memory card and a memory chip.

27. The device of claim 1 wherein the input/output section comprises a communicator configured to transfer data with respect to a peripheral device spaced from the housing.

28. The device of claim 1 wherein the input/output section comprises at least one of a wired communicator and a wireless communicator.

29. The device of claim 1, comprising a test port disposed on the exterior, the test port being configured to receive the sensor.

30. The device of claim 1, comprising a temperature sensor configured to monitor ambient temperature, wherein an output intensity of the light emitting diode is configured to be adjusted in response to changes in the ambient temperature.

31. The device of claim 1, comprising an additional optics bench coupled to the processor.

32. The device of claim 31 wherein the additional optics bench is disposed in the interior space.