Wound packing device and methods

• US 9,155,671 B2
• Filed: 10/16/2013
• Issued: 10/13/2015
• Est. Priority Date: 10/16/2012
• Status: Active Grant

• Current Assignee: Surmodics Incorporated
• Original Assignee: Surmodics Incorporated
• Inventors: Fuller, Shawn, Claseman, Bryan A., Slager, Joram, Missling, Jeffrey J., Maharaj, Gary, Opperman, Gary W., Lockwood, Nathan, Hergenrother, Robert W., Olson, Charles
• Primary Examiner(s): Anderson, Lynne
• Application Number:
  US14/055,654
• Publication Number:
  US 20140180229A1
• Time in Patent Office: 727 Days
• Field of Search: 604/304, 604/305, 604/543, 604/385.18
• US Class Current: 1/1
• CPC Class Codes: A61F 13/01021 characterised by the structure of the dressing
• CPC Class Codes: A61F 13/01029 made of multiple layers
• CPC Class Codes: A61F 13/05 specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control
• CPC Class Codes: A61F 2013/00153 coloured or with decoration pattern or printing
• CPC Class Codes: A61F 2013/00327 to create projections or depressions in surface
• CPC Class Codes: A61F 2013/00331 lubricants
• CPC Class Codes: A61F 2013/00357 implanted wound fillings or covers
• CPC Class Codes: A61F 2013/00557 detachable absorbent pad
• CPC Class Codes: A61L 15/22 containing macromolecular materials
• CPC Class Codes: A61L 15/44 Medicaments
• CPC Class Codes: A61L 15/60 Liquid-swellable gel-forming materials, e.g. super-absorbents
• CPC Class Codes: A61L 2300/102 Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
• CPC Class Codes: A61L 2300/208 Quaternary ammonium compounds

Abstract

Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.

Claims

1. A wound packing device comprising:

a plurality of spacing elements, wherein the surface of the spacing elements resist colonization by microorganisms, further comprising a fluid reservoir in fluid communication with one or more spacing elements;

a connector connecting the plurality of spacing elements to one another; and

wherein the plurality of spacing elements are capable of absorbing exudate.

2. The wound packing device of claim 1, the surface of the spacing elements exhibiting antimicrobial activity.

3. The wound packing device of claim 1, wherein the distance between adjacent spacing elements along the connector is at least equal to the diameter of the spacing elements.

4. The wound packing device of claim 1, the spacing elements comprising a grooved surface.

5. The wound packing device of claim 1, each spacing element capable of absorbing an amount of exudate equal to at least the weight of the spacing element.

6. The wound packing device of claim 1, wherein the spacing elements are swellable.

7. The wound packing device of claim 1, wherein the spacing elements are hollow.

8. The wound packing device of claim 1, the spacing elements comprising a core and an outer layer disposed on the outside surface of the core, the outer layer comprising a water permeable material.

9. The wound packing device of claim 1, the spacing element comprising a plurality of pores.

10. The wound packing device of claim 1, the spacing element comprising a fluid sequestering agent.

11. The wound packing device of claim 1, further comprising a porous sleeve disposed over the connector.

12. The wound packing device of claim 1, the connector comprising a lumen.

13. The wound packing device of claim 12, wherein the lumen of the connector is in fluid communication with one or more of the spacing elements such that fluid from the one or more spacing elements can be transferred to the lumen of the connector.

14. The wound packing device of claim 12, wherein the lumen of the connector is accessible from an end of the connector providing fluid communication between one or more of the spacing elements and the end of the connector.

15. The wound packing device of claim 1, further comprising hollow fibers disposed within the spacing elements.

16. A wound packing device comprising:

a plurality of spacing elements, wherein the surface of the spacing elements resist colonization by microorganisms;

a connector connecting the plurality of spacing elements to one another, the connector comprising a lumen; and

wherein the plurality of spacing elements are capable of absorbing exudate.

17. The wound packing device of claim 16, wherein the lumen of the connector is in fluid communication with one or more of the spacing elements such that fluid from the one or more spacing elements can be transferred to the lumen of the connector.

18. The wound packing device of claim 16, wherein the lumen of the connector is accessible from an end of the connector providing fluid communication between one or more of the spacing elements and the end of the connector.

19. A wound packing device comprising:

a plurality of spacing elements, wherein the surface of the spacing elements resist colonization by microorganisms;

a connector connecting the plurality of spacing elements to one another; and

a layer of a material disposed over the spacing elements, the material selected from the group consisting of flashspun high-density polyethylene fibers, polytetrafluoroethylene, and graphene;

wherein the plurality of spacing elements are capable of absorbing exudate.

20. The wound packing device of claim 19, the layer of material comprising a layer of graphene, further comprising a modifying agent covalently bonded to the graphene.