# US 10,245,184 B2 · Reduced pressure, compression systems and apparatuses for use on joints

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- Number: US 10,245,184 B2
- Document ID: US10245184B2
- Status: Granted
- Kind: B2
- Application number: 14/220,706
- Filed: 2014-03-20
- Published: 2014-07-24
- Granted: 2019-04-02
- Earliest claimed: 2008-05-30
- Assignees: KCI Licensing, Inc.
- Applicants: Kci Licensing, Inc.
- Inventors: Matthew Francis Cavanaugh, II; Justin Alexander Long; Richard Marvin Kazala, Jr.; Eric Woodson Barta
- Web page: https://patentgrep.com/patent/US10245184B2

## CPC

- A61F 13/022: {having more than one layer with different fluid retention characteristics}
- A61F 13/00059: {provided with visual effects, e.g. printed or colored}
- A61F 13/01017: {synthetic, e.g. polymer based}
- A61F 13/01029: {made of multiple layers}
- A61F 13/01034: {characterised by a property}
- A61F 13/01038: {Flexibility, stretchability or elasticity}
- A61F 13/0209: {comprising superabsorbent material}
- A61F 13/0223: {characterized by parametric properties of the fluid retention layer, e.g. absorbency, wicking capacity, liquid distribution}
- A61F 13/0243: {characterised by the properties of the skin contacting layer, e.g. air-vapor permeability}
- A61F 13/0289: {manufacturing of adhesive dressings}
- 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]
- A61F 15/008: {Appliances for wound protecting, e.g. avoiding contact between wound and bandage (corn plasters A61F13/063)}
- 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}
- A61L 15/60: Liquid-swellable gel-forming materials, e.g. super-absorbents
- A61M 1/71: {Suction drainage systems (containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90)}
- A61M 1/915: {Constructional details of the pressure distribution manifold}
- A61M 1/917: {specially adapted for covering whole body parts}
- A61F 13/00: Bandages or dressings (radioactive dressings {A61N5/1029}); Absorbent pads
- A61F 2013/00131: {elasticity distribution}
- A61F 2013/00136: {anisotropy}
- A61F 2013/00174: {possibility of applying pressure}
- A61F 2013/00182: {with transparent part}
- A61F 2013/00246: {in a special way pervious to air or vapours}
- A61F 2013/0028: {applying of mechanical pressure; passive massage}
- A61F 2013/00536: {for draining or irrigating wounds}
- A61F 2013/0054: {for deep wounds}
- A61F 2013/00748: {with hydrocolloids or superabsorbers}
- A61M 1/916: {specially adapted for deep wounds}
- A61M 2205/70: with testing or calibration facilities
- A61M 2207/00: Methods of manufacture, assembly or production
- A61M 2210/1007: Breast; mammary
- A61M 2210/1021: Abdominal cavity
- Y10T 29/49: Method of mechanical manufacture
- Y10T 29/49826: Assembling or joining
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A system for providing reduced-pressure treatment to a moveable tissue site, such as a joint, includes a flexible dressing bolster. The flexible dressing bolster has a first side and a second, inward-facing side, and a plurality of flexion joints formed on the flexible dressing bolster. The system further includes a sealing subsystem for providing a fluid seal over the flexible dressing bolster and the patient's epidermis and a reduced-pressure subsystem for delivering a reduced pressure to the sealing subsystem. The sealing subsystem and reduced-pressure subsystem are operable to deliver a reduced pressure to the moveable tissue site. The flexible dressing bolster is operable to allow articulation or movement of the moveable tissue site. The sealing subsystem may include a drape with folds. Other systems, apparatuses, and methods are presented.

## Claims

### Claim 1

A closing dressing bolster, the closing dressing bolster comprising:
a bolster body having a first side, a second side, and a center wound area, the bolster body formed with a plurality of flexion joints on the first side of the bolster body;
a first closing member extending from the second side of the bolster body on a first longitudinal side of the center wound area;
a second closing member extending from the second side of the bolster body on a second longitudinal side of the center wound area; and
wherein the first closing member and the second closing member are operable to develop an inward closing force when the closing dressing bolster is placed under reduced pressure.

### Claim 2 (depends on 1)

The closing dressing bolster of claim 1, wherein the flexion joints are formed by slots formed through a portion of the bolster body on the first side.

### Claim 3 (depends on 1)

The closing dressing bolster of claim 1, wherein the bolster body is formed from a transparent material.

### Claim 4 (depends on 1)

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

### Claim 5

A system for providing reduced-pressure treatment to a tissue site, the system comprising:
a flexible dressing bolster;
a drape at least partially covering the flexible dressing bolster, the drape comprising:
a plurality of folds to facilitate bending of the tissue site;
a first drape portion configured to cover the flexible dressing bolster and including the plurality of folds;
a second drape portion having a treatment area aperture configured to receive the flexible dressing bolster, the first drape portion being configured to cover the treatment area aperture; and
the second drape portion further comprising release members releasably coupled to a perimeter portion of the second drape portion, the release members configured to increase stiffness of the second drape portion;
a sealing apparatus configured to seal the drape to epidermis surrounding the tissue site; and
a reduced-pressure source operable to deliver reduced pressure to the flexible dressing bolster.

### Claim 6 (depends on 5)

The system of claim 5, further comprising an intermediate drape layer having an aperture and wherein a perimeter of the drape is coupled to the intermediate drape layer to at least partially enclose the flexible dressing bolster.

### Claim 7 (depends on 1)

The closing dressing bolster of claim 1, further comprising at least one aperture formed in the first side of the bolster body to receive reduced pressure.

### Claim 8 (depends on 1)

The closing dressing bolster of claim 1, further comprising a plurality of apertures formed on the second side of the bolster body for fluid communication with a tissue site.

### Claim 9 (depends on 1)

The closing dressing bolster of claim 1, further comprising:
at least one aperture formed in the first side of the bolster body to receive reduced pressure; and
a plurality of apertures formed on the second side of the bolster body for fluid communication of reduced pressure with a tissue site.

### Claim 10 (depends on 1)

The closing dressing bolster of claim 1, wherein the bolster body further comprises:
a central compartment extending longitudinally through the bolster body;
a shelf portion positioned adjacent and parallel to the central compartment so that the central compartment is configured to collapse onto the shelf portion; and
a treatment trough having oblique walls positioned adjacent and parallel to the shelf portion, the treatment trough configured to be placed over a tissue site so that the oblique walls pull toward one another in response to reduced pressure.

### Claim 11 (depends on 5)

The system of claim 5, further comprising a comfort layer coupled to the flexible dressing bolster.

### Claim 12 (depends on 11)

The system of claim 11, wherein the comfort layer comprises a woven elastic material.

### Claim 13 (depends on 11)

The system of claim 11, wherein the comfort layer comprises a polyester knit textile substrate.

### Claim 14 (depends on 5)

The system of claim 5, wherein the flexible dressing bolster comprises a plurality of flexibility notches.

### Claim 15 (depends on 14)

The system of claim 14, wherein the flexibility notches are lateral cuts.

### Claim 16 (depends on 5)

The system of claim 5, wherein in the first drape portion further comprises a drape extension configured to couple to at least a portion of the second drape portion surrounding the treatment area aperture.

### Claim 17 (depends on 5)

The system of claim 5, wherein the folds comprise bellows.

### Claim 18 (depends on 5)

The system of claim 5, wherein the plurality of folds are configured to increase a dimension of the drape in response to movement of the tissue site.