Method for treating wound, dressing for use therewith and apparatus and system for fabricating dressing

• US 20040015115A1
• Filed: 05/07/2003
• Published: 01/22/2004
• Est. Priority Date: 05/07/2002
• Status: Active Grant

• Current Assignee: Nuvesse Skin Therapies Inc.
• Original Assignee: Polyremedy, Inc.
• Inventors: Sinyagin, Dmitriy
• Granted Patent: US 7,910,789 B2
• Time in Patent Office: Days
• US Class Current: 602/42
• CPC Class Codes: A61F 13/00063 comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00
• CPC Class Codes: A61F 13/00987 Apparatus or processes for manufacturing non-adhesive dressings or bandages
• 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 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00221 biodegradable, non-irritating
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 for deep wounds
• CPC Class Codes: A61F 2013/00574 shaped as a body part A61F2013/00187 take precedence; use of plasters A61F2013/00365; containing means for different purposes A61F2013/00902
• CPC Class Codes: A61F 2013/00927 with biological activity, e.g. enzymes for debriding wounds or others, collagen or growth factors
• CPC Class Codes: A61F 2013/8488 including testing apparatus
• CPC Class Codes: D01D 5/0007 Electro-spinning non-woven fabrics produced by electro-spinning D04H1/728
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: G16H 70/20 relating to practices or guidelines
• CPC Class Codes: Y10S 602/90 Method of making bandage structure
• CPC Class Codes: Y10S 706/924 Medical
• CPC Class Codes: Y10T 29/49 Method of mechanical manufacture

Abstract

A method of treating a wound using a customized dressing. In the method, at least one wound characteristic is evaluated. A treatment need as a function of the at least one wound characteristic is determined. A dressing having a dressing characteristic responsive to the treatment need is fabricated and applied to the wound. A dressing for use therewith and an apparatus and system for fabricating the dressing are provided.

Claims

1. A method of treating a wound using a customized dressing, the method comprising the steps of evaluating at least one wound characteristic, determining a treatment need as a function of the at least one wound characteristic, fabricating a dressing having a dressing characteristic responsive to the treatment need and applying the dressing to the wound.

10. The method of claim 1 wherein the creating step includes the step of creating the dressing directly on the wound.

11. The method of claim 1 wherein an outer layer of the wound dressing is made of a porous film.

12. The method of claim 1 further comprising applying a wound dressing attachment adhesive to a part of an outer layer of the wound dressing that extends beyond the wound area.

2. A method of fabricating a dressing to treat a patient having a wound with at least first and second contiguous regions, the method comprising the steps of evaluating the wound characteristics of the first region of the wound, determining a size and shape of the first region of the wound and fabricating a dressing having a first portion with a size and shape corresponding to the size and shape of the first region and made from a first material for enhancing treatment of the wound characteristics of the first region of the wound.

3. The method of claim 2 further comprising the steps of evaluating the wound characteristics of the second region of the wound and determining the size and shape of the second region of the wound, wherein the dressing has a second portion with a size and shape corresponding to the second region and made from a second material for enhancing treatment of the wound characteristics of the second region.

4. The method of claim 2 wherein the evaluating step includes the step of evaluating at least one member of the group consisting of:

a wound type, an amount of exudation, a depth, a bacteria colonization, an epitheliazation, and a sensitivity of each of the first and second regions of the wound.

5. The method of claim 2 wherein the evaluating step includes generating a map of the wound characteristics at various locations within a volume defined by the wound.

6. The method of claim 2 wherein the step of creating a dressing includes the step of depositing a first layer and depositing a second layer.

7. The method of claim 6 wherein the first layer of the wound dressing is a wound-facing layer and is made of polymer microfibers.

8. The method of claim 7 wherein the polymer microfibers are bioabsorbable polymer microfibers.

9. The method of claim 5 wherein creating the map includes creating a first map corresponding to a first layer of the wound dressing and creating a second map corresponding to a second layer of the wound dressing.

13. A dressing for treating a patient having a wound with at least first and second contiguous regions surrounded by skin, the dressing comprising a first portion made from a first material adapted for engaging the first region of the wound and a second portion made from a second material different than the first material adapted for engaging the second region of the wound.

14. The dressing of claim 13 further including an adhesive layer for adhering the dressing to the skin of the patient, wherein the adhesive layer extends around the first and second portions.

15. The dressing of claim 13 wherein the second portion extends around the first portion.

16. The dressing of claim 13 wherein the first portion has a first thickness and the second portion has a second thickness.

17. The dressing of claim 13 wherein the first portion includes a first layer for engaging the first region of the wound and an overlying second layer, the second layer extending beyond the first portion and engaging the second region of the wound.

18. The dressing of claim 13 wherein the dressing further includes a third portion made from a third material different from the first and second materials.

19. An automated system for fabricating a wound dressing for treatment of a wound, the system comprising:

assessment means for assessing a plurality of wound characteristics associated with the wound;

a processor for determining a set of parameters of the wound dressing, based on the plurality of wound characteristics; and

fabrication means for fabricating the wound dressing based on the set of parameters.

20. The system of claim 19 wherein the assessment means includes a digital camera or optical digitizer.

21. An apparatus for fabricating a wound dressing for use in treating a wound area, the apparatus comprising:

a stage having a fabrication surface;

a deposition source of a material directed toward the stage; and

at least one controller for controlling a relative position between the deposition source and the stage based on a set of characteristics of the wound;

wherein the controller is coupled to the source for activating the source based on the set of wound characteristics and the relative position between the source and the stage.

22. The apparatus of claim 21 further comprising a second deposition source of a second material directed toward the stage.