Appliance for an Electromagnetic Spectrum Sensor Monitoring an Intravascular Infusion

• US 20130237832A1
• Filed: 03/11/2013
• Published: 09/12/2013
• Est. Priority Date: 03/12/2012
• Status: Abandoned Application

• Current Assignee: ivWatch, LLC
• Original Assignee: ivWatch, LLC
• Inventors: Warren, Gary P., Bowers, Marilyn J., Alley, Matthew S., Anchell, Scott J.
• Application Number:
  US13/792,193
• Publication Number:
  US 20130237832A1
• Time in Patent Office: Days
• US Class Current: 600/473
• 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 5/443 Evaluating skin constituents, e.g. elastin, melanin, water
• 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 2205/3313 used specific wavelengths
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

An epidermal dressing includes an appliance for linking an electromagnetic spectrum sensor with a cannula administering an intravascular infusate. The appliance includes a body and a fitting coupled to the body. The body is configured to space a connector of the cannula from the epidermis. The fitting includes a first arrangement that is configured to retain the electromagnetic spectrum sensor for sensing the infusate in perivascular tissue, and a second arrangement that is configured to release the electromagnetic spectrum sensor from the first arrangement.

Claims

1. An appliance for linking an electromagnetic spectrum sensor with a cannula, the cannula including an extracorporeal connector coupled to a transcutaneous sleeve penetrating an epidermis at an insertion site, the appliance comprising:

a first portion including a chute extending along an axis between first and second ends, the first portion having—

a first arrangement configured to retain the electromagnetic spectrum sensor in the chute for monitoring fluid in perivascular tissue proximate the sleeve; and

a second arrangement configured to release the electromagnetic spectrum sensor from the first arrangement; and

a second portion coupled to the first portion and being configured to minimize contiguous engagement between the extracorporeal connector and the epidermis.

2. The appliance of claim 1 wherein the first end is configured to pass the electromagnetic spectrum sensor when rearranging between the first and second arrangements.

3. The appliance of claim 1, comprising a panel occluding the second end, wherein the panel is configured as a solid, liquid, microorganism, and virus barrier between the electromagnetic spectrum sensor and the epidermis in the first arrangement.

4. The appliance of claim 3 wherein the panel is approximately transparent to near-infrared signals.

5. The appliance of claim 1 wherein the second portion comprises a panel occluding the second end, wherein the panel is configured as a solid, liquid, microorganism, and virus barrier between the electromagnetic spectrum sensor and the epidermis in the first arrangement.

6. The appliance of claim 5, comprising an adhesive configured to bond the second portion and the epidermis.

7. The appliance of claim 6 wherein the adhesive is omitted in a window configured to pass first and second near-infrared signals, the first near infrared signal is transmitted by the electromagnetic spectrum sensor to the epidermis, and the second near-infrared signal is received by the electromagnetic spectrum sensor from perivascular tissue proximate the transcutaneous sleeve.

8. The appliance of claim 1 wherein the chute is centered about the axis.

9. The appliance of claim 1 wherein the axis comprises a straight line and the chute is configured for guiding the electromagnetic spectrum sensor to translate along the axis.

10. The appliance of claim 1 wherein the axis is configured to extend obliquely with respect to the epidermis.

11. The appliance of claim 1 wherein the first portion comprises a latch configured to contiguously engage the electromagnetic spectrum sensor in the first arrangement.

12. The appliance of claim 11 wherein the latch is configured to disengage the electromagnetic spectrum sensor in the second arrangement.

13. The appliance of claim 1 wherein the second portion comprises first and second wings, the first wing extends from the first portion in a first lateral direction with respect to the axis, and the second wing extends from the first portion in a second lateral direction generally opposite to the first lateral direction.

14. The appliance of claim 1 wherein the first portion has a higher resistance to deformation than the second portion.

15. The appliance of claim 1 wherein the first portion includes a polypropylene homopolymer and the second portion includes a thermoplastic elastomer.

16. The appliance of claim 1 wherein at least one of the first and second portions is biocompatible according to at least one of ISO 10993 and USP Class IV.

17. The appliance of claim 1, comprising a first surface configured to face the epidermis.

18. The appliance of claim 17 wherein the second portion has a thickness between the first surface and a second surface configured to contiguously engage the extracorporeal connector.

19. The appliance of claim 18 wherein the thickness separates the extracorporeal connector and the epidermis.