REDUCED-PRESSURE DRESSING ASSEMBLIES FOR USE IN APPLYING A CLOSING FORCE

• US 20090299255A1
• Filed: 05/29/2009
• Published: 12/03/2009
• Est. Priority Date: 05/30/2008
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.)
• Original Assignee: KCI Licensing Incorporated (3M Company)
• Inventors: Long, Justin Alexander, Barta, Eric Woodson, Kazala, Richard Marvin JR., Knowles, Kenneth Mitchel
• Granted Patent: US 8,399,730 B2
• Time in Patent Office: Days
• US Class Current: 602/53
• CPC Class Codes: A61F 13/00 Bandages or dressings radioactive dressings A61N5/1029; Absorbent pads
• CPC Class Codes: A61F 13/00059 provided with visual effects, e.g. printed or colored
• CPC Class Codes: A61F 13/01017 synthetic, e.g. polymer based
• CPC Class Codes: A61F 13/01029 made of multiple layers
• CPC Class Codes: A61F 13/01034 characterised by a property
• CPC Class Codes: A61F 13/01038 Flexibility, stretchability or elasticity
• CPC Class Codes: A61F 13/0209 comprising superabsorbent material
• CPC Class Codes: A61F 13/022 having more than one layer with different fluid retention characteristics
• CPC Class Codes: A61F 13/0223 characterized by parametric properties of the fluid retention layer, e.g. absorbency, wicking capacity, liquid distribution
• CPC Class Codes: A61F 13/0243 characterised by the properties of the skin contacting layer, e.g. air-vapor permeability
• CPC Class Codes: A61F 13/0289 manufacturing of adhesive dressings
• 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 15/008 Appliances for wound protecting, e.g. avoiding contact between wound and bandage corn plasters A61F13/063
• CPC Class Codes: A61F 2013/00131 elasticity distribution
• CPC Class Codes: A61F 2013/00136 anisotropy
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00182 with transparent part
• CPC Class Codes: A61F 2013/00246 in a special way pervious to air or vapours
• CPC Class Codes: A61F 2013/0028 applying of mechanical pressure; passive massage
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 : for deep wounds
• CPC Class Codes: A61F 2013/00748 : with hydrocolloids or superabsorbers
• CPC Class Codes: A61H 1/008 : Apparatus for applying pressure or blows almost perpendicular to the body or limb axis, e.g. chiropractic devices for repositioning vertebrae, correcting deformation
• CPC Class Codes: A61L 15/60 : Liquid-swellable gel-forming materials, e.g. super-absorbents
• CPC Class Codes: A61M 1/71 : Suction drainage systems containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90
• CPC Class Codes: A61M 1/915 : Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/916 : specially adapted for deep wounds
• CPC Class Codes: A61M 1/917 : specially adapted for covering whole body parts
• CPC Class Codes: A61M 2205/70 : with testing or calibration facilities
• CPC Class Codes: A61M 2207/00 : Methods of manufacture, assembly or production
• CPC Class Codes: A61M 2210/1007 : Breast; mammary
• CPC Class Codes: A61M 2210/1021 : Abdominal cavity
• CPC Class Codes: Y10T 29/49 : Method of mechanical manufacture
• CPC Class Codes: Y10T 29/49826 : Assembling or joining

Abstract

A closing dressing bolster and assembly for use with a system for treating a linear wound on a patient includes a bolster body formed from a flexible closing bolster material having closing members that are operable to develop an inward closing force when the closing dressing bolster is placed under reduced pressure. In one aspect, when the closing dressing bolster is under reduced pressure, the system, dressing, or assembly develops an inward force realized at the linear wound and a compression force. A wicking-material holder and wicking material may be used as well. The member components may all be see-through to allow visual inspection of the wound without requiring removal of the dressing.

Claims

1. A closing dressing bolster for use with a system for treating a linear wound on a patient, the closing dressing bolster comprising:

a bolster body formed from a flexible closing bolster material and having a center portion;

the bolster body comprising;

a top wall,

a bottom wall, the top wall and bottom wall are coupled in a spaced relationship, the bottom wall having a first lateral portion on one side of the center portion, and a second lateral portion on another side of the center portion,

a first closing member formed on the first lateral portion, and

a second closing member formed on the second lateral portion; and

wherein the first closing member and second closing member are operable to develop a directed force when the closing dressing bolster is placed under reduced pressure.

2. The closing dressing bolster of claim 1 wherein the bolster body is formed from a see-through material.

3. The closing dressing bolster of claim 1 wherein the bolster body is formed from silicone.

4. The closing dressing bolster of claim 1 wherein the bolster body further comprises a wicking-material holder, and wherein the closing dressing bolster further comprises a wicking material associated with the wicking-material holder.

5. The closing dressing bolster of claim 1 wherein the directed force comprises an inward closing force.

6. The closing dressing bolster of claim 1 wherein the directed force comprises a compressive force.

7. The closing dressing bolster of claim 1 wherein the directed force comprises an inward closing force and a compressive force.

8. A closing dressing bolster for use with a system for treating a linear wound on a patient, the closing bolster comprising:

a bolster body formed from a flexible closing bolster material;

the closing bolster body comprising;

a first closing member formed on a second surface of the bolster body and having a first oblique wall,

a second closing member formed on the second surface of the bolster body and having a second oblique wall,

a wicking-material holder coupled to the bolster body;

a wicking material associated with the wicking bolster holder, the wicking material having a fluid flow pathway for removing fluids; and

wherein the first closing member and second closing member are operable, when the closing dressing bolster is under reduced pressure, to develop an inward force.

9. The closing dressing bolster of claim 8 wherein the first closing member and second closing member are operable, when the closing dressing bolster is under reduced pressure, to develop a compression force.

10. The closing dressing bolster of claim 8 wherein the bolster body is formed from a see-through material.

11. The closing dressing bolster of claim 8 wherein the bolster body is formed from silicone.

12. A closing dressing bolster for use with a system for treating a linear wound on a patient, the closing bolster comprising:

a bolster body formed from a flexible closing bolster material;

a first closing member formed on a second surface of the bolster body, the first closing member formed on a first lateral side of a center area;

a second closing member formed on the second surface of the bolster body, the second closing member formed on a second lateral side of a center area;

wherein the first closing member and second closing member are operable to move towards each other when placed under reduced pressure; and

wherein the bolster body is operable to allow light to pass through sufficiently that color may be detected from a location external to the closing dressing bolster.

13. The closing dressing bolster of claim 12 wherein the bolster body is formed is from silicone.

14. The closing dressing bolster of claim 12 further comprising a wicking-material holder formed in the bolster body and a wicking material associated with the wicking material holder.

15. A dressing assembly for use with a system for treating a linear wound on a patient, the dressing assembly comprising:

a bolster body formed from a flexible closing bolster material, the bolster body having a first surface and a second, tissue-facing surface;

wherein the bolster body comprises;

a first closing member on a first lateral side of a center wound area of the bolster body;

a second closing member on a second lateral side of the center wound area of the bolster body;

wherein the first closing member and second closing member are operable, when the closing dressing bolster is under reduced pressure, to move towards one another and to develop a compressive force; and

an over-drape for disposing adjacent to the first surface of the bolster body and operable to form a seal over the bolster body.

16. The dressing assembly of claim 15 wherein the bolster body is formed from a see-through material.

17. The dressing assembly of claim 15 wherein the bolster body is formed from silicone.

18. The dressing assembly of claim 15 further comprising a wicking-material holder formed in the bolster body and a wicking material associated with the wicking-material holder.

19. The dressing assembly of claim 15 wherein the bolster body is formed from a see-through material and wherein the bolster body is operable to allow light to pass through sufficiently that color of the linear wound may be seen from a point external to the dressing assembly.

20. A method of manufacturing a closing dressing bolster for use with a system for treating a linear wound on a patient, the method comprising the steps of:

forming a bolster body from a flexible closing bolster material;

wherein the step of forming the bolster body comprises forming the bolster body with a first lateral side and a second lateral side, and wherein bolster body includes a central area and wherein the first side is on one side of the central area and the second side on the other side of the central area; and

wherein the step of forming the bolster body further comprises;

forming a first closing member on the bolster body on the first lateral side of the central area,

forming a second closing member on the bolster body on the second lateral side of the central area, and

wherein the first closing member and second closing member develop an inward closing force when the closing dressing bolster is placed under reduced pressure.

21. The method of claim 20 wherein the step of forming the bolster body further comprises the step of forming the bolster body to develop a compressive force when placed under reduced pressure.

22. The method of claim 20 wherein the step of forming the bolster body further comprises the step of forming a wicking material holder.