Dressing for an Insertion Site of an Intravascular Infusate

• US 20130317443A1
• Filed: 03/11/2013
• Published: 11/28/2013
• Est. Priority Date: 03/12/2012
• Status: Abandoned Application

• Current Assignee: ivWatch, LLC
• Original Assignee: Gary P. Warren, ivWatch, LLC, Marilyn J. Bowers, Matthew S. Alley, Scott J. Anchell
• Inventors: Warren, Gary P., Bowers, Marilyn J., Alley, Matthew S., Anchell, Scott J.
• Application Number:
  US13/792,959
• Publication Number:
  US 20130317443A1
• Time in Patent Office: Days
• US Class Current: 604/180
• CPC Class Codes: A61B 2562/0233 Special features of optical sensors or probes classified in A61B5/00
• CPC Class Codes: A61B 2562/12 Manufacturing methods specially adapted for producing sensors for in-vivo measurements
• CPC Class Codes: A61B 2562/187 Strain relief means
• CPC Class Codes: A61B 2562/247 Hygienic covers, i.e. for covering the sensor or apparatus during use
• CPC Class Codes: A61B 5/0082 adapted for particular medical purposes
• CPC Class Codes: A61B 5/0507 using microwaves or terahertz waves
• CPC Class Codes: A61B 5/68335 including release sheets or liners
• CPC Class Codes: A61F 13/0276 Apparatus or processes for manufacturing adhesive dressings or bandages
• CPC Class Codes: A61M 5/1414 Hanging-up devices
• CPC Class Codes: A61M 5/1418 Clips, separators or the like for supporting tubes or leads
• 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
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

An epidermal dressing includes a barrier film and a fitting that cooperates with a sensor emitting and detecting near infrared signals for monitoring an intravascular infusion. The barrier film overlies an epidermal insertion site for a cannula administering the intravascular infusion. The fitting includes a first arrangement that retains the sensor and a second arrangement that releases the sensor from the first arrangement.

Claims

1. A dressing for an insertion site of an intravascular infusion, the dressing comprising:

a barrier film configured to overlie the insertion site;

an adhesive configured to attach the barrier film over the insertion site;

a fitting configured to cooperate with a sensor emitting and detecting near infrared signals for monitoring the intravascular infusion, the fitting including—

a pocket defined by a wall wherein a first arrangement of the fitting is configured to retain the sensor in the pocket and a second arrangement of the fitting is configured to release the sensor from the first arrangement; and

a flange projecting from the wall; and

a frame coupling the flange to the barrier film, the frame being relatively more resistant to deformation than the barrier film.

2. The dressing of claim 1 wherein at least one of the wall and the flange comprises a plurality of segments separated by individual gaps.

3. The dressing of claim 1 wherein the frame comprises polyvinyl chloride foam.

4. The dressing of claim 3 wherein the frame comprises a polyethylene strip disposed between the flange and the polyvinyl chloride foam.

5. The dressing of claim 1 wherein the barrier film comprises at least one of a transparent film and a translucent film.

6. The dressing of claim 1 wherein the barrier film is configured to substantially prevent passage of solids, liquids, microorganisms, and viruses.

7. The dressing of claim 1 wherein the fitting, the frame and the barrier film are biocompatible according to ISO 10993.

8. The dressing of claim 1 wherein the barrier film comprises a reticle configured to measure changes proximate the insertion site.

9. The dressing of claim 8 wherein the reticle is configured to overlie the insertion site.

10. The dressing of claim 8 wherein the reticle comprises at least one of a set of concentric arcs, a geometric shape, a set of parallel lines, and a color gradient.

11. The dressing of claim 1 wherein the fitting overlies the barrier film, and the barrier film is substantially transparent to the near-infrared signals.

12. The dressing of claim 1, comprising a set of strain relief devices configured to contiguously engage a lead of the sensor in the first arrangement.

13. The dressing of claim 12, comprising an arm coupling the set of strain relief devices and the fitting.

14. The dressing of claim 12 wherein the frame at least partially encapsulates the arm.

15. The dressing of claim 1 wherein the frame is configured to contiguously engage a cannula administering the intravascular infusion.

16. The dressing of claim 15 wherein the frame is configured to underlie the cannula.