VASCULAR ACCESS DEVICE TIME SENSITIVE STATUS INDICATION

• US 20110130726A1
• Filed: 08/26/2010
• Published: 06/02/2011
• Est. Priority Date: 05/08/2006
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Stout, Marty L., Harding, Weston F., Crawford, Mark A.
• Granted Patent: US 8,257,663 B2
• Time in Patent Office: Days
• US Class Current: 604/288.01
• CPC Class Codes: A61M 2005/1402 Priming
• CPC Class Codes: A61M 2005/3132 having flow passages for injection agents at the distal end of the barrel to bypass a sealing stopper after its displacement to this end due to internal pressure increase
• CPC Class Codes: A61M 2205/273 preventing reuse, e.g. of disposables
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 39/045 pre-slit to be pierced by blunt instrument
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066
• CPC Class Codes: A61M 5/284 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: G09F 3/0291 Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
• CPC Class Codes: Y10T 436/2575 Volumetric liquid transfer

Abstract

A vascular access device for communicating with the vascular system of a patient may include a status indicator. The status indicator may detect and signal that a period of time has elapsed in relation to the use of the vascular access device.

Claims

1-22. -22. (canceled)

23. A medical device comprising:

a septum; and

a color-changing material included with the septum.

24. The medical device of claim 23, wherein the color-changing material is a layer disposed on a top external surface of the septum.

25. The medical device of claim 23, wherein the color-changing material is embedded into the surface of the septum.

26. The medical device of claim 23, wherein the color-changing material includes at least one removable layer of colored material.

27. The medical device of claim 26, wherein the at least one removable layer of colored material includes multiple layers of different colored materials.

28. The medical device of claim 26, wherein the at least one removable layer of colored material is at least slightly alcohol soluble.

29. The medical device of claim 23, wherein the color-changing material includes a thermochromic material.

30. The medical device of claim 29, wherein the thermochromic material includes at least one of a liquid crystal and a leuco dye.

31. The medical device of claim 23, wherein the color-changing material includes a pH sensor.

32. The medical device of claim 23, wherein the color-changing material includes an alcohol sensor.

34. The medical device of claim 23, wherein the color-changing material includes a moisture sensitive layer.

35. The medical device of claim 23, wherein the color-changing material includes a piezochromic material.

33. A medical device comprising, wherein the color-changing material includes a colored substrate disposed in the external surface of the septum, and a surface disposed on the colored substrate that becomes transparent when it absorbs a liquid.

36. A medical device comprising:

a septum having a slit extending therethrough; and

a color-changing material included with the septum, the color changing material being configured to change color when a top external surface of the septum is swabbed.

37. The medical device of claim 36, wherein the color changing material is a layer disposed on a top external surface of the septum.

38. The medical device of claim 36, wherein the color changing material is embedded into the surface of the septum.