VASCULAR ACCESS DEVICE NON-ADHERING SURFACES

• US 20080027400A1
• Filed: 07/26/2007
• Published: 01/31/2008
• Est. Priority Date: 07/28/2006
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Ou-Yang, David, Guo, Lantao, McKinnon, Austin Jason, Harding, Weston F., Howell, Glade H., Crawford, Mark A.
• Granted Patent: US 8,197,452 B2
• Time in Patent Office: Days
• US Class Current: 604/265
• CPC Class Codes: A61M 2039/0036 characterised by a septum having particular features, e.g. having venting channels or being made from antimicrobial or self-lubricating elastomer
• CPC Class Codes: A61M 2039/167 with energizing means, e.g. light, vibration, electricity
• CPC Class Codes: A61M 25/0017 specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 39/045 pre-slit to be pierced by blunt instrument
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: Y10S 128/912 Connections and closures for tubes delivering fluids to or from the body
• CPC Class Codes: Y10S 604/905 Aseptic connectors or couplings, e.g. frangible, piercable

Abstract

A vascular access device may include a body and a layer of the body that communicates with a pathogenic environment to discourage adhesion of a pathogen to the layer and thus repress pathogenic activity. A method of repressing pathogenic activity in a vascular access device includes providing the device with a body, and coating the body with a layer that discourages adhesion of a pathogen to the layer.

Claims

1. A medical device, comprising:

a vascular access device including a body having a lumen;

a septum positioned within the lumen, the septum having a slit;

a fluid pathway through the device having a layer wherein the layer communicates with a pathogenic environment; and

wherein the layer discourages adhesion of a pathogen to the layer to repress pathogenic activity.

2. The medical device of claim 1, wherein the layer includes a radio frequency coating, and wherein the radio frequency activated coating is heated to repress pathogenic activity.

3. The medical device of claim 1, wherein the layer includes a resistive and conductive coating for receiving an electric field, and wherein the coating is heated by a rapidly oscillating electric field to repress pathogenic activity.

4. The medical device of claim 3, wherein the resistive and conductive coating includes nickel chrome.

5. The medical device of claim 1, wherein the layer includes glass.

6. The medical device of claim 1, wherein the layer includes ceramic.

7. The medical device of claim 1, wherein the layer includes a small chain polyethylene oxide, polyvinyl alcohol, or polylactide.

8. The medical device of claim 1, wherein the layer includes polytetrafluoroethylene.

9. The medical device of claim 1, wherein the layer includes a microsurface of peaks and valleys spaced to repress pathogenic activity.

10. The medical device of claim 1, wherein the layer is coated with plasma.

11. A method of repressing pathogenic activity in a vascular access device, comprising:

providing a vascular access device with a body having a lumen, a septum having a slit positioned within the lumen, the septum further comprising a layer; and

coating the layer with a material such that the layer discourages adhesion of a pathogen to the layer.

12. The method of claim 11, further comprising transmitting radio frequency energy to the layer.

13. The method of claim 11, further comprising emitting a rapidly oscillating electric field to the layer, wherein the layer includes nickel chrome.

14. The method of claim 11, wherein the layer includes glass.

15. The method of claim 11, wherein the layer includes ceramic.

16. The method of claim 11, wherein the layer includes a small chain polyethylene oxide, polyvinyl alcohol, or polylactide.

17. The method of claim 11, wherein the layer includes polytetrafluoroethylene.

18. The method of claim 11, wherein coating the body with a layer includes forming a series of microsurface peaks and valleys.

19. The method of claim 11, wherein the layer includes plasma.

20. A medical device, comprising:

means for accessing the vascular system of a patient, and means for discouraging adhesion of a pathogen,

wherein the pathogen resides near the means for accessing the vascular system of a patient,

wherein the means for accessing the vascular system includes a body having a lumen and a split septum having a layer positioned within the lumen; and

means for discouraging adhesion of a pathogen to the layer.

21. The medical device of claim 20, wherein the layer includes a radio frequency coating, and wherein means for discouraging adhesion of a pathogen comprises heating the radio frequency coating to repress pathogenic activity.

22. The medical device of claim 20, wherein the layer includes a resistive and conductive coating for receiving an electric field, and wherein the means for discouraging adhesion of a pathogen comprises heating the coating by a rapidly oscillating electric field.

23. The medical device of claim 22, wherein the resistive and conductive coating includes nickel chrome.

24. The medical device of claim 20, wherein the layer includes glass.

25. The medical device of claim 20, wherein the layer includes ceramic.

26. The medical device of claim 20, wherein the layer includes a small chain polyethylene oxide, polyvinyl alcohol, or polylactide.

27. The medical device of claim 20, wherein the layer includes polytetrafluoroethylene.

28. The medical device of claim 20, wherein the layer includes a microsurface of peaks and valleys spaced to repress pathogenic activity.

29. The medical device of claim 20, wherein the layer is coated with plasma.