Shoulder dressing for negative pressure therapy

Abstract

A negative pressure therapy dressing comprising: a drape layer; an adhesive border configured to provide a seal between the drape layer and skin; and a manifold layer coupled to the drape layer. The manifold layer comprises a body portion extending along a first direction, a first wing positioned at a first side of the body portion, and a second wing positioned at a second side of the body portion opposite the first side. The first wing extends away from the first side and partially along the first direction such that a first gap is provided between a first tip of the first wing and the first side of the body portion. The second wing extends away from the second side and partially along the first direction such that a second gap is provided between a second tip of the second wing and the second side of the body portion.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of priority to U.S. Provisional Application No. 63 / 075466, filed September 8, 2020, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates generally to a wound treatment system, and more specifically to a wound treatment system configured to provide negative pressure wound treatment at one or more shoulder incision sites. Background Technology

[0004] Negative pressure wound therapy (NPWT) is a type of wound treatment that involves applying negative pressure to the wound treatment area to promote wound healing. NPWT can be used to treat wounds in the shoulder region caused by arthroscopic shoulder surgery. Recent advances in NPWT treatment include the use of adhesive wound dressings that can be positioned over the wound to treat the wound and surrounding area. However, existing adhesive NPWT dressings are primarily linear dressings designed to treat linear wounds. In many cases, some shoulder surgeries involve three incisions arranged in a non-linear configuration. For example, in some surgical approaches, the first incision is located on the front portion of the patient's shoulder, the second incision on the back portion of the patient's shoulder, and the third incision on the top portion of the patient's arm, close to the patient's shoulder. Conventional NPWT dressings are constructed to treat linear incisions, and modifying them to treat the specific incision patterns used in arthroscopic shoulder surgery can be time-consuming. Other areas of the body (and incisions or other wounds thereon) may also be difficult to cover with conventional NPWT dressings. Summary of the Invention

[0005] One embodiment of this disclosure is a negative pressure treatment dressing. The negative pressure treatment dressing includes: a sterile cover layer; an adhesive edging configured to provide a seal between the sterile cover layer and the skin when the dressing is applied to a patient; and a manifold layer connected to the sterile cover layer. The manifold layer includes a body portion extending in a first direction, a first wing positioned at a first side of the body portion, and a second wing positioned at a second side of the body portion opposite to the first side. The first wing extends away from the first side and partially extends in the first direction, such that a first tip of the first wing forms a first gap with the first side of the body portion. The second wing extends away from the second side and partially extends in the first direction, such that a second tip of the second wing forms a second gap with the second side of the body portion.

[0006] In some implementations, the adhesive edging extends across the gap. The adhesive edging may be perforated in the gap to facilitate tearing or cutting the adhesive edging within the gap. The adhesive edging may include an adhesive configured to selectively adhere to the skin, the adhesive edging, and the sterile drape.

[0007] In some implementations, the manifold layer is etched to enhance its conformability. The manifold layer may be symmetrical about the longitudinal axis of the body portion.

[0008] In some embodiments, the main body includes a concave edge extending between a first wing and a second wing. The first wing may include an elliptical shape. The manifold layer may be configured to be applied to a patient's shoulder region, wherein the main body corresponds to the lateral and superior sides of the patient's shoulder region, the first wing corresponds to the anterior side of the patient's shoulder region, and the second wing corresponds to the posterior side of the patient's shoulder region.

[0009] Another embodiment of this disclosure is a negative pressure therapy system. The negative pressure therapy system includes a dressing defining a sealable volume and includes a body portion extending along a first direction and a first wing positioned at a first side of the body portion. The first wing extends away from the first side and partially along the first direction, such that a first apex of the first wing is provided with a first gap between it and the first side of the body portion. The negative pressure therapy system includes a negative pressure source configured to be in fluid communication with the dressing and operable to establish negative pressure within the sealable volume.

[0010] The negative pressure therapy system may also include a fixation device configured to stabilize the patient's shoulder. A negative pressure source may be connected to the fixation device.

[0011] In some implementations, the dressing includes an adhesive edging. The adhesive edging may extend across the gap. The adhesive edging may be perforated in the gap to facilitate cutting or tearing the adhesive edging within the gap.

[0012] In some embodiments, the dressing further includes a second wing positioned on a second side of the body portion. The second wing extends away from the second side and partially along the first direction, such that a second apex of the second wing forms a second gap with the second side of the body portion. The body portion may include a concave edge extending between the first and second wings. The dressing may be symmetrical about the longitudinal axis of the body portion. The first wing may have an elliptical shape.

[0013] One embodiment of this disclosure is a method for providing negative pressure therapy. The method includes: positioning a body portion of a dressing along a transverse side of a patient's shoulder region; bending the dressing to position a first wing of the dressing along the anterior side of the patient's shoulder region; bending the dressing to position a second wing of the dressing along the posterior side of the patient's shoulder region; adjusting a first gap between the body portion and the first wing, and a second gap between the second wing and the body portion, to conform the dressing to the shoulder region; establishing a substantially airtight seal between the dressing and the joint region using an adhesive edging of the dressing; attaching the dressing to a negative pressure source; and operating the negative pressure source to establish negative pressure at the dressing and the joint region.

[0014] In some embodiments, adjusting the first gap includes creating a cut or tear in the adhesive layer near the first gap; and overlapping the adhesive layer at the cut or tear such that the adhesive layer self-adhedes to maintain adjustment of the first gap. Adjusting the first gap may include reducing the distance between the end of the first wing and the first side of the body portion.

[0015] In some implementations, the method also includes using a fixation device to secure the shoulder area and attaching a negative pressure device to the fixation device.

[0016] Those skilled in the art will understand that the invention is merely illustrative and not intended to be limiting in any way. Other aspects, inventive features, and advantages of the apparatus and / or process described herein, as defined only by the claims, will become apparent from the specific embodiments set forth herein and in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 A perspective view of the shoulder region of a representative patient who has undergone shoulder surgery is shown.

[0018] Figure 2 This is a front view of a wound dressing according to an exemplary embodiment.

[0019] Figure 3 According to the exemplary implementation scheme Figure 2 A perspective view of the wound dressing.

[0020] Figure 4 According to the exemplary implementation scheme Figure 2 An exploded view of the wound dressing.

[0021] Figure 5 According to the exemplary implementation scheme Figure 2 A perspective view of the manifold layer of the wound dressing.

[0022] Figure 6 According to another exemplary implementation Figure 2 An exploded view of the manifold layer of the wound dressing.

[0023] Figure 7 It is attached to the representative person's shoulder. Figure 2 A perspective view of the wound dressing.

[0024] Figure 8 This is a perspective view of a shoulder dressing according to an exemplary embodiment.

[0025] Figure 9 According to the exemplary implementation scheme Figure 8 A top view of one embodiment of a shoulder dressing.

[0026] Figure 10 According to the exemplary implementation scheme Figure 8 A top view of another embodiment of the shoulder dressing.

[0027] Figure 11 According to the exemplary implementation scheme Figure 8 A top view of another implementation of the shoulder dressing.

[0028] Figure 12 It is applied to the patient at a first application location and orientation according to an exemplary embodiment. Figure 8 Illustration of a shoulder dressing.

[0029] Figure 13 It is applied to the patient at a second application location and orientation according to an exemplary embodiment. Figure 8 Illustration of a shoulder dressing.

[0030] Figure 14 It is applied to the patient at a third application location and orientation according to an exemplary embodiment. Figure 8 Illustration of a shoulder dressing. Detailed Implementation

[0031] Overview

[0032] Referring generally to the accompanying drawings, a wound treatment system for treating wounds on curved parts of the body is illustrated according to various embodiments. More specifically, the wound treatment system is used to treat wounds in the shoulder region. The wound treatment system includes a wound dressing and a negative pressure wound therapy (NPWT) system. The phrase "negative pressure" refers to pressure less than ambient or atmospheric pressure. While the amount and nature of the decompression applied to the wound treatment area can vary depending on the specific application, the decompression is typically between -5 mm Hg and -500 mm Hg, and more typically between -100 mm Hg and -300 mm Hg.

[0033] Figure 1An exemplary shoulder 10 of a patient undergoing arthroscopic shoulder surgery is shown. Arthroscopic shoulder surgery typically includes a first incision 14 on the front of the upper portion of the patient's shoulder, a second incision 18 on the back of the upper portion of the patient's shoulder, and a third incision 22 on the upper portion of the patient's arm. The wound treatment area includes the first incision 14, healthy tissue surrounding the first incision 14, the second incision 18, healthy tissue surrounding the second incision 18, the third incision 22, and healthy tissue surrounding the second incision 18. The wound dressing described herein is configured to substantially cover the wound treatment area and to apply NPWT to the wound treatment area. During arthroscopic shoulder surgery, several liters of fluid are pumped into the shoulder area. Applying NPWT to the entire wound treatment area promotes patient healing by lifting the healthy tissue surrounding the incision, which facilitates the absorption of fluid by the patient's lymphatic system. In some embodiments, the NPWT system can remove excess fluid that cannot be absorbed by the body. For example, fluids (wound exudate, fluids injected during surgery, etc.) can be drained from the wound treatment area via a negative pressure catheter or a dedicated drainage line. The fluid can be collected by the removal fluid reservoir of the NPWT system.

[0034] In some embodiments, the wound dressing is substantially T-shaped and includes a first circular protrusion, a second circular protrusion, and a third circular protrusion. The first and second circular protrusions are generally aligned, and the third circular protrusion is generally perpendicular to the first and second circular protrusions. The first and second circular protrusions are substantially semi-elliptical, and the third circular protrusion is substantially circular. The first and second circular protrusions are connected to the third circular protrusion by a connecting portion narrower than the first, second, and third circular protrusions. The wound dressing is shaped to wrap around the patient's shoulder. The first circular protrusion is configured to cover a first incision 14 at the front portion of the patient's shoulder and healthy tissue surrounding the first incision 14. The second circular protrusion is configured to cover a second incision 18 at the back portion of the patient's shoulder and healthy tissue surrounding the second incision 18. The third circular protrusion is configured to cover a third incision 22 at the upper portion of the patient's arm and healthy tissue surrounding the third incision 22. In some embodiments, the wound dressing includes a concave contour generally aligned with the third circular protrusion. The concave contour is designed to prevent the wound dressing from covering the patient's trapezius muscle. The shape of the wound dressing is approximately symmetrical to allow it to be placed on either the left or right shoulder.

[0035] In some embodiments, the wound dressing has a substantially 3D shape configured to conform to the treatment area of ​​a shoulder wound. In such embodiments, the wound dressing forms an elbow-shaped channel comprising a first portion and a second portion angled relative to the first portion. In some embodiments, the second portion forms a substantially obtuse angle relative to the first portion. The first portion is configured to cover a first incision and surrounding healthy tissue at the frontal portion of the patient's shoulder, a top portion of the patient's shoulder, and a second incision and surrounding healthy tissue at the back portion of the patient's shoulder. In some embodiments, a first circular protrusion and a second circular protrusion extend from the first portion. In some embodiments, the first and second circular protrusions are substantially perpendicular to the first portion. The first circular protrusion is configured to cover the first incision and the healthy tissue surrounding the first incision. The second circular protrusion is configured to cover the second incision and the healthy tissue surrounding the first incision.

[0036] Wound dressings can be used in conjunction with immobilization devices such as slings or straps, which are configured to immobilize the patient's arm relative to the patient's torso to stabilize the shoulder joint. A negative pressure source or pump and a removal fluid container are integrated into the immobilization device. The wound dressing includes a negative pressure interface that facilitates fluid communication between the wound dressing and a negative pressure catheter connected to the negative pressure source. A portion of the negative pressure catheter near the NPWT system is located within the immobilization device. The integration of the NPWT system with the immobilization device allows for convenient delivery of negative pressure to the patient during NPWT.

[0037] In some embodiments, the wound dressing is configured to drain excess fluid from the wound treatment area. In such embodiments, the removal fluid container may be configured to store fluid removed from the wound treatment area (e.g., wound exudate, fluid injected during surgery, etc.). In some embodiments, the removal fluid container is positioned upstream of a negative pressure source, allowing fluid to drain from the wound dressing via a negative pressure conduit and accumulate in the removal fluid container. In other embodiments, the removal fluid container may be fluidly coupled to the wound treatment area via a fluid removal line separate from the negative pressure conduit. NPWT can help reduce the chance of seroma, scarring, infection, or other adverse complications of the wound.

[0038] Further features and advantages of the wound treatment system are described in detail below.

[0039] wound dressing

[0040] See now Figures 2 to 4 The image shows a wound dressing 100 according to an exemplary embodiment. Figure 2 This is a front view of wound dressing 100. Figure 3 This is a perspective view of wound dressing 100. Figure 4This is an exploded view showing several layers 120-148 of the wound dressing 100.

[0041] In various embodiments, the wound dressing 100 may be formed as a substantially flat sheet for local application to a wound. The wound dressing 100 is generally flat but can be wrapped around the patient's shoulder to conform to the three-dimensional shape of the wound treatment area on the patient's shoulder. The wound dressing 100 is substantially T-shaped and includes a first circular protrusion 104, a second circular protrusion 108, and a third circular protrusion 112. The first circular protrusion 104 and the second circular protrusion 108 are substantially semi-elliptical and aligned along axis A. The third circular protrusion 112 is substantially circular and is connected to the first circular protrusion 104 and the second circular protrusion 108 by a connecting portion 116 narrower than the third circular protrusion 112. The third circular protrusion 112 is substantially perpendicular to the first circular protrusion 104 and the second circular protrusion 108. The first circular protrusion 104 is configured to cover an incision at the frontal portion of the patient's shoulder and the healthy tissue surrounding the incision. The second circular protrusion 108 is configured to cover the incision at the back portion of the patient's shoulder 10 and the healthy tissue surrounding the incision. The third circular protrusion 112 is configured to cover the incision at the upper portion of the patient's arm and the healthy tissue surrounding the incision. The wound dressing 100 is substantially symmetrical about axis B, such that the wound dressing 100 can be deployed on the patient's right shoulder or the patient's left shoulder without modification.

[0042] The wound dressing 100 is shown comprising multiple layers, including a sterile cover layer 120, a manifold layer 124, a wound interface layer 128, a semi-rigid support layer 132, a first adhesive layer 136, and a second adhesive layer 140. In some embodiments, the wound dressing 100 includes a removable covering sheet 148 to cover the manifold layer 124, the wound interface layer 128, and the second adhesive layer 140 prior to use.

[0043] Disinfecting cover layer

[0044] The sterile drape layer 120 is shown comprising a first surface 152 and a second wound-facing surface 156 opposite to the first surface 152. When the wound dressing 100 is applied to the wound, the first surface 152 faces away from the wound, while the second surface 156 faces the wound. The sterile drape layer 120 supports the manifold layer 124 and the wound interface layer 128 and provides a barrier against microorganisms penetrating the wound dressing 100. The sterile drape layer 120 is configured to provide a sealed space over the wound or incision. In some embodiments, the sterile drape layer 120 is an elastomeric material or any material that can provide a fluid seal. “Fluid seal” means a seal sufficient to maintain pressure at the desired site, taking into account the specific decompression subsystem involved. The term “elastomeric” means having elastomeric properties and generally refers to a polymeric material having rubber-like properties. Examples of elastomers include, but are not limited to, natural rubber, polyisoprene, styrene-butadiene rubber, chloroprene rubber, polybutadiene, nitrile rubber, butyl rubber, ethylene propylene rubber, ethylene propylene monomer, chlorosulfonated polyethylene, polysulfide rubber, polyurethane, EVA film, copolyester, and silicone. As a non-limiting example, the sterilization cover layer 120 may be made of materials including silicone, 3M... The material is formed from disinfectant drape material, acrylic disinfectant drape material (such as one purchased from Avery), or incision disinfectant drape material.

[0045] The sterile drape layer 120 may be substantially impermeable to liquids and substantially permeable to water vapor. In other words, the sterile drape layer 120 is permeable to water vapor but impermeable to liquid water or wound exudate. This enhances the total fluid handling capacity (TFHC) of the wound dressing 100 while promoting a moist wound environment. In some embodiments, the sterile drape layer 120 is also impermeable to bacteria and other microorganisms. In some embodiments, the sterile drape layer 120 is configured to draw moisture from the manifold layer 124 core and distribute the moisture on the first surface 152.

[0046] like Figure 4As shown, the disinfectant drape layer 120 defines a cavity 122 for receiving the manifold layer 124, the wound interface layer 128, and the first adhesive layer 136. The manifold layer 124, the wound interface layer 128, and the first adhesive layer 136 may have similar peripheries or contours. In some embodiments, the periphery of the disinfectant drape layer 120 extends beyond (e.g., circumferentially) the periphery of the manifold layer 124 to provide an edge 160. The first adhesive layer 136 includes a first surface 164 and a second wound-facing surface 168. Both the first surface 164 and the second surface 168 are coated with an adhesive, such as an acrylic adhesive, a silicone adhesive, and / or other adhesives. The first surface 164 of the first adhesive layer 136 is attached to the second surface 172 of the wound interface layer 128. The second surface 168 of the first adhesive layer 136 is attached to a second adhesive layer 140. The second adhesive layer 140 includes a first surface 176 and a second wound-facing surface 180. The second surface 168 of the first adhesive layer 136 is attached to the first surface 176 of the second adhesive layer 140. The second surface 180 of the second adhesive layer 140 is coated with an acrylic adhesive, a silicone adhesive, and / or other adhesive. The adhesive applied to the second surface 180 of the second adhesive layer 140 is designed to ensure that the wound dressing 100 adheres to the surface of the patient's tissue and to ensure that the wound dressing 100 remains in place throughout the duration of wear. The periphery or contour of the second adhesive layer 140 is similar to the periphery or contour of the edge 160. In an illustrative embodiment, the first surface 176 of the second adhesive layer 140 is welded to the edge 160. In other embodiments, the first surface 176 of the second adhesive layer is secured to the edge 160 using an adhesive (e.g., an acrylic adhesive, a silicone adhesive, or another type of adhesive). The edge 160 and / or the second adhesive layer 140 may extend around all sides of the manifold layer 124, such that the wound dressing 100 is a so-called island dressing. In other embodiments, the edge 160 and / or the second adhesive layer 140 may be eliminated, and other techniques may be used to adhere the wound dressing 100 to the patient's tissue. In some embodiments, a first adhesive layer 136 and a second adhesive layer 140 may be formed together on a base layer containing adhesive on both sides, the adhesive being configured to (i) secure the sterile drape layer 120 to the manifold layer 124, optionally the wound interface layer 128, and (ii) secure the wound dressing 100 to the patient's tissue. In some embodiments, the base layer may be integrally formed with the sterile drape layer 120. In some embodiments, the base layer may be a polyurethane film having a first surface and a second wound-facing surface. Both the first and second surfaces may be coated with an adhesive (such as an acrylic adhesive or a silicone adhesive). In some embodiments, the wound-facing surface of the base layer may contain an aqueous colloidal adhesive.

[0047] In some implementations, the pressure-reducing interface 192 may be integrated with the sterilization cover layer 120. The pressure-reducing interface 192 may be in fluid communication with a negative pressure system via a negative pressure conduit 272. The pressure-reducing interface 192 is configured to allow the negative pressure source 268 (…) to flow through the negative pressure conduit 272 connected between the pressure-reducing interface 192 and the negative pressure source 268. Figure 7 A fluid communication exists between the pressure-reducing interface 192 and the wound dressing 100 (e.g., via the sterile drape layer 120), allowing negative pressure generated by the negative pressure source 268 to be applied to the wound dressing 100 (e.g., via the sterile drape layer 120). In some embodiments, the pressure-reducing interface 192 may be integral with the sterile drape layer 120 (e.g., integrally formed). In other embodiments, the pressure-reducing interface 192 may be separate from the sterile drape layer 120 and configured for user attachment to the sterile drape layer 120. In an illustrated embodiment, the pressure-reducing interface 192 is positioned above the third circular protrusion 112. In other embodiments, the pressure-reducing interface 192 may be positioned at other locations on the sterile drape layer 120.

[0048] Continue to refer to Figure 4 A semi-rigid support layer 132 is positioned above the first surface 152 of the sterile drape layer 120. The semi-rigid support layer 132 is spaced apart from but adjacent to the edge 160 and the second adhesive layer 140. The semi-rigid support layer 132 is made of a semi-rigid material and helps to maintain the rigidity of the wound dressing 100 before it is secured to the patient's surface. The semi-rigid support layer 132 is intended to be removed from the sterile drape layer 120 after the wound dressing 100 has been secured to the patient's tissue.

[0049] In some embodiments, the second surface 156 of the disinfection cover layer 120 contacts the manifold layer 124. The second surface 156 of the disinfection cover layer 120 may adhere to the manifold layer 124, or it may only contact the manifold layer 124 without the use of an adhesive.

[0050] In some embodiments, the adhesive applied to the second surface 156 of the sterile dressing layer 120 is vapor-permeable and / or patterned to allow water vapor to pass through the adhesive. The adhesive may comprise a pressure-sensitive adhesive layer of the type conventionally used for island-type wound dressings that is continuously vapor-permeable (e.g., a polyurethane-based pressure-sensitive adhesive).

[0051] manifold

[0052] See Figure 5The manifold layer 124 is shown comprising a first surface 196 and a second wound-facing surface 200 opposite to the first surface 196. When the wound dressing 100 is applied to the wound, the first surface 196 faces away from the wound, while the second surface 200 faces the wound. In some embodiments, the first surface 196 of the manifold layer 124 contacts the second surface 156 of the sterile drape layer 120. In some embodiments, the second surface 200 of the manifold layer 124 contacts the wound interface layer 128. The manifold layer 124 is configured to deliver negative pressure to the wound and / or incision site and / or nearby patient tissue. The manifold layer 124 is configured to aspirate fluids (e.g., exudates) from the wound and includes an in-mold manifold layer structure for distributing negative pressure across the entire wound dressing 100 during negative pressure wound therapy.

[0053] The manifold layer 124 can be made of a porous and permeable foam-like material, and more specifically, of a mesh-like open-cell polyurethane or polyether foam that allows good permeability of wound fluid under reduced pressure. One such foam material already in use is available from Kinetic Concepts, Inc. (KCI), San Antonio, Texas. Granufoam TM Materials. Any material or combination of materials may be used in the manifold 124, provided that the manifold 124 is operable to distribute decompression and provide distributed compressive force along the wound treatment area.

[0054] Granufoam TM The mesh pore size of the material is preferably in the range of approximately 400 to 600 micrometers, but other materials may also be used. Manifold layer materials (e.g., Granufoam) TM The density of the material is typically around 1.3 lb / ft. 3 -1.6lb / ft 3 (20.8kg / m 3 -25.6kg / m 3 Within the range of ). In some cases, it has more than Granufoam TM Materials with higher density (smaller pore size) may be preferable. For example, Granufoam could be used. TM Materials or materials with a density greater than 1.6 lb / ft 3 (25.6kg / m 3 Similar materials to ), such as Granufoam, can be used. TM Materials or materials with a density greater than 2.0 lb / ft 3 (32kg / m 3 ) or 5.0 lb / ft3 (80.1kg / m 3 Or even larger similar materials. The denser the material, the higher the compressive force that can be generated for a given decompression. If a foam with a density less than that of the tissue at the site of the injury is used as the manifold layer material, a lifting force can be formed. In one exemplary embodiment, a portion of the wound dressing 100 (e.g., the edge) may apply compressive force, while another portion (e.g., the center) may provide lifting force.

[0055] The manifold layer material can be a mesh foam, which is then felted to a thickness of approximately one-third (1 / 3) of the initial foam thickness. Among many possible manifold layer materials, Granufoam can be used. TM Materials or Technological foams (www.foamex.com). In some cases, it may be desirable to add ionic silver to the foam or other substances such as antimicrobial agents to the manifold layer material during the microbonding process. The manifold layer material can be isotropic or anisotropic, depending on the exact orientation of the compressive force required during the application of decompression. The manifold layer material can also be a bioabsorbable material.

[0056] like Figures 2 to 5 As shown, manifold layer 124 is generally symmetrical about axis B. Manifold layer 124 is substantially T-shaped and includes a first circular protrusion 204, a second circular protrusion 208, and a third circular protrusion 212. Manifold layer 124 may have a length L ranging from approximately 7.44 inches to 11.16 inches. In some embodiments, the length L is approximately 9.3 inches. Manifold layer 124 may have a width W ranging from approximately 7.76 inches to approximately 11.64 inches. In some embodiments, the width W is approximately 9.7 inches. Manifold layer 124 may have a thickness T ranging from approximately 0.64 inches to 0.96 inches. In some embodiments, the thickness T is approximately 0.8 inches.

[0057] The first circular protrusion 204 and the second circular protrusion 208 are substantially elliptical. The first circular protrusion 204 and the second circular protrusion 208 may each have a radius of curvature rc1 ranging from about 1.04 inches to 1.56 inches. In some embodiments, the first circular protrusion 204 and the second circular protrusion 208 may each have a radius of curvature of about 1.3 inches. The first circular protrusion 204 and the second circular protrusion are substantially aligned along axis A. A concave portion 216 extends along the periphery of the wound dressing 100 between the first circular protrusion 204 and the second circular protrusion 208. The concave portion 216 is substantially aligned along axis B with the third circular protrusion 212. The concave portion 216 is positioned to prevent the wound dressing from covering the patient's trapezius muscle and / or contacting the patient's neck when the wound dressing 100 is secured to the patient's shoulder. The concave portion 216 may have a radius of curvature rc2 ranging from about 4 inches to about 6 inches. In some embodiments, the radius of curvature rc2 may be about 5 inches.

[0058] The third circular protrusion 212 is substantially perpendicular to the first circular protrusion 204 and the second circular protrusion 208. The third circular protrusion 212 is substantially circular. The third circular protrusion may have a radius of curvature rc3 ranging from about 1.6 inches to about 2.4 inches. In some embodiments, the radius of curvature rc3 may be about 2.0 inches. The third circular protrusion 212 is connected to the first circular protrusion 204 and the second circular protrusion 208 via a connecting portion 220. The width W of the connecting portion 220 is... CP The diameter D is smaller than that of the third circular protrusion 212. The width W of the connecting portion. CP It can range from approximately 1.2 inches to approximately 1.8 inches. In some implementations, the width W CP It can be approximately 1.5 inches.

[0059] like Figure 5 As best shown, a notch pattern 226 is formed in the first surface 196 of the manifold layer 124. The notch pattern 226 is shown as an arrangement of “slits” or notches (e.g., “mango cuts”) formed in the manifold layer 124, for example, by laser notching or other suitable processes. More specifically, the notch pattern 226 is cut into the first surface 196 of the manifold layer 124. Figure 5 In one implementation, the notch pattern 226 extends between the first surface 196 and the second surface 200, but does not extend completely into the second surface 200. The notch pattern 226 may have a depth D ranging from approximately 0.2 inches to 0.5 inches. S In some implementations, depth D S-The notch is approximately 0.28 inches. According to the illustrated embodiment, the notch pattern 226 is a generally square pattern. However, in other embodiments, the notch pattern 226 may be a different geometric pattern. When the wound dressing 100 is applied to a generally flat (e.g., two-dimensional) portion of the wound treatment area, such as the front of the shoulder or the back of a patient's shoulder, the notches 228 of the notch pattern 226 are generally vertical and adjacent to each other. When the wound dressing 100 is attached to a curved (e.g., three-dimensional) surface, such as a transitional portion of the surface extending between the front and top of the shoulder, the back and top of the shoulder, and between the shoulder and the top of the arm, the notches 228 of the notch pattern 226 open to facilitate the curvature of the manifold layer 124, such that the manifold layer 124 closely conforms to the shape of the wound treatment area. The notch pattern 226 allows the manifold layer 124 to conform to both generally flat and curved surfaces at the wound treatment area.

[0060] Figure 6 Manifold layer 232 according to another embodiment is shown. Manifold layer 232 is generally similar to manifold layer 124. Manifold layer 232 can be incorporated into wound dressing 100, as described above with respect to manifold layer 124. Similar reference numerals are indicated by the same numbers, and portions of manifold layer 232 are indicated by apostrophes “'”.

[0061] like Figures 2 to 5 As shown, manifold layer 232 is generally symmetrical about axis B. Manifold layer 232 is substantially T-shaped and includes a first circular protrusion 236, a second circular protrusion 240, and a third circular protrusion 244. Manifold layer 232 may have a length L' ranging from approximately 7.44 inches to 11.16 inches. In some embodiments, the length L' is approximately 9.3 inches. Manifold layer 232 may have a width W' ranging from approximately 7.76 inches to approximately 11.64 inches. In some embodiments, the width W' is approximately 9.7 inches. Manifold layer 232 may have a thickness T' ranging from approximately 0.64 inches to 0.96 inches. In some embodiments, the thickness T' is approximately 0.8 inches.

[0062] Manifold 232 includes the above-mentioned relative to Figure 5The first circular protrusion 236, the second circular protrusion 240, and the third circular protrusion 244 are described. The first circular protrusion 236 and the second circular protrusion 240 are substantially elliptical. The first circular protrusion 236 and the second circular protrusion are substantially aligned along axis A'. A raised portion 248 extends along the periphery of the wound dressing 100 between the first circular protrusion 236 and the second circular protrusion 240. The raised portion 248 is substantially aligned along axis B' with the third circular protrusion 244. The raised portion 248 may have a radius of curvature rc4 in the range of about 4 inches to about 6 inches. In some embodiments, the radius of curvature rc4 may be about 5 inches.

[0063] Wound interface layer

[0064] The wound interface layer 128 is shown as including a first surface 222 and a second wound-facing surface 224 opposite to the first surface 222. When the wound dressing 100 is applied to the wound, the first surface 222 faces away from the wound, while the second surface 224 faces the wound. In some embodiments, the first surface 222 of the wound interface layer 128 contacts the second surface 224 of the manifold layer 124. In some embodiments, the second surface 224 of the wound interface layer 128 contacts the patient's tissue. In some embodiments, the wound dressing 100 may not include the wound interface layer 128.

[0065] The wound interface layer 128 is made of a wicking material that is fluid-permeable and designed not to irritate the patient's tissues. In an exemplary embodiment, the wound interface layer is a polyester pique-knitted fabric, such as Milliken fabric. In other embodiments, other permeable and non-irritating fabrics may be used. The wound interface layer 128 may also be treated with an antimicrobial material. In an exemplary embodiment, the wound interface layer 128 contains silver ions as an antimicrobial material. Other antimicrobial materials may also be used in other embodiments.

[0066] Integrated fixture and NPWT system

[0067] See now Figure 7 The wound dressing 100 is used in conjunction with the fixation device 252. The fixation device 252 is configured to secure the patient's arm relative to the patient's shoulder to restrict shoulder movement. Figure 7In the illustrated embodiment, the fixation device 252 is a suspension band. The suspension band includes an arm receiving portion 256 and a shoulder strap 260. The arm receiving portion 256 is configured to receive at least the forearm and elbow of the arm corresponding to the injured shoulder. The shoulder strap 260 is coupled to the arm receiving portion 256 and is configured to be positioned over the patient's uninjured shoulder to support the arm corresponding to the patient's injured shoulder. In some embodiments, the suspension band includes a strap (not shown) configured to secure the arm receiving portion 256 of the suspension band relative to the patient's torso. In other embodiments, the fixation device 252 may be as follows: Figure 12 The strap shown.

[0068] The NPWT system 262 also includes a removal fluid container 264 in fluid communication with the wound dressing 100 via a negative pressure conduit 272 and a negative pressure source or pump 268. In some embodiments, the pump 268 may be a powered pump 268. In such embodiments, the NPWT system 262 also includes a battery configured to power the pump 268. In other embodiments, the pump 268 is a non-powered pump. In such embodiments, the pump 268 may be manually actuated by the patient. The removal fluid container 264 may be configured to store fluid from incisions 14, 18, 22 ( Figure 1 The fluid removed may include, for example, wound exudate (e.g., bodily fluids), air, fluid injected into the wound treatment area during surgery, or any other type of fluid that may be removed from the incision 240 during wound treatment.

[0069] The NPWT system 262 is connected to the wound dressing 100 via a negative pressure conduit 272. The negative pressure conduit 272 has a first end 276 connected to a pressure-reducing interface 192 of the wound dressing 100 and a second end 280 connected to the NPWT system 262. In an illustrated embodiment, the negative pressure conduit 272 is a multi-lumen conduit. The negative pressure conduit 272 includes a first lumen 284 and a second lumen 288. The first lumen 284 is configured to apply negative pressure to the wound dressing 100 and aspirate exudate into a removal fluid container 264. The second lumen 288 is configured to sense the pressure of the wound dressing 100. One such NPWT system 262 including a multi-lumen conduit is SensaT.RAC, a product of Kinetic Concepts Corporation (KCI) of San Antonio, Texas. TM system.

[0070] return Figure 7 The NPWT system 262 is integrated with the fixing device 252. For example... Figure 7As shown, the NPWT system 262 is secured within the arm receiving portion 256 of the fixing device 252. For example, the NPWT system 262 can be positioned within a recess in the arm receiving portion 256, sewn into the arm receiving portion 256, or secured within the arm receiving portion 256 of the fixing device 252 using a removable adhesive such as Velcro. Figure 7 As shown, the portion of the negative pressure catheter 272 near the NPWT system 262 is integrated with the arm receiving portion 256. For example, the negative pressure catheter 272 can be positioned within the channel of the arm receiving portion 256 and secured to the arm receiving portion 256 of the fixation device 252 using a removable adhesive such as Velcro. The integration of the NPWT system 262 within the fixation device 252 allows for convenient delivery of the NPWT system 262 to the patient while the patient is undergoing NPWT.

[0071] Dressing deployment

[0072] Figure 7 A wound dressing 100 is shown deployed at a representative location on the patient's torso. The patient's arm near the injured shoulder is secured relative to the patient's torso by a fixation device 252 to stabilize the shoulder joint. Although Figure 7 The wound dressing 100 is shown, but the manifold layer 232 can be deployed in a similar manner. See brief reference. Figure 1 The wound treatment area includes a first incision 14 on the front of the patient's shoulder and surrounding healthy tissue, a second incision 18 on the back of the patient's shoulder and surrounding healthy tissue, and a third incision 22 on the top of the patient's arm and surrounding healthy tissue. (Example) Figure 7 As shown, the wound dressing 100 is not located above the patient's armpit. From Figure 1 and Figure 7 The comparison clearly shows that the wound dressing 100 is sized to cover the entire wound treatment area. Another advantage of covering the entire wound area is that the wound dressing 100 can provide NPWT (negative pressure and lifting force) to the entire wound treatment area, thereby creating negative pressure and lifting force above the wound treatment area, which is beneficial for wound healing and for the absorption of fluids injected by the lymphatic system during surgery. In some embodiments, the wound dressing 100 can be used in conjunction with a topically applied pharmaceutical compound. For example, the wound dressing 100 can be used in combination with a silicone gel applied near the first incision 14, the second incision 18, and the third incision 22. The silicone gel can reduce scar formation at or near incisions 14, 18, and 22.

[0073] like Figure 7As shown, the decompression interface 192 is positioned above the third circular protrusion 212. In other embodiments, the decompression interface 192 may be positioned at other locations on the sterile cover layer 120 of the wound dressing 100. A negative pressure conduit 272 extends from the decompression interface 192 and extends along the patient's arm into the fixation device 252. As shown using dashed lines, the negative pressure conduit 272 is coupled to the NPWT system 262, which is integrated with the fixation device 252. Due to the symmetrical shape of the wound dressing 100, the wound dressing can be used to treat wounds in both the left and right shoulders.

[0074] To deploy wound dressing 100 to treat a wound treatment area on a patient's shoulder, the healthcare professional removes the covering sheet 148 from the wound dressing 100. The healthcare professional then oriented the wound dressing 100 relative to the patient's shoulder such that a first circular protrusion 104 covers the incision and surrounding healthy tissue on the front of the patient's shoulder, and a second circular protrusion 108 covers the incision and healthy tissue on the back of the patient's shoulder. The healthcare professional then oriented the wound dressing 100 such that a third circular protrusion 112 covers the incision and surrounding healthy tissue on the upper portion of the patient's arm near the injured shoulder. The healthcare professional then applies pressure around the periphery of the edge 160 of the sterile cover layer 120 to secure the second adhesive layer 140 to the patient's tissue. The healthcare professional then uses a fixation device 252 to fix the patient's arm relative to the patient's torso. The healthcare professional then inserts a negative pressure catheter 272 into the fixation device 252 and connects the negative pressure catheter 272 to the NPWT system 262. The healthcare professional then actuates the NPWT system 262 to apply negative pressure to the wound treatment area.

[0075] Joint dressing

[0076] General reference Figures 8 to 14 This illustrates another dressing for use with negative pressure therapy, according to various exemplary embodiments. Specifically, a perspective view of dressing 800 is shown as follows. Figure 8 As shown, and top views of various embodiments of dressing 800 are as follows. Figures 9 to 11 As shown. Figures 12 to 14 An example of applying dressing 800 to a patient is shown. These illustrations are described in detail below. Dressing 800 may be included in a negative pressure therapy system, such as in a kit that also includes a negative pressure source (e.g., a pump), tubing or other fluid conduits, and / or a shoulder immobilization device (e.g., a sling).

[0077] For illustrative purposes, dressing 800 is shown configured to be positioned in multiple orientations desired by the clinician on the patient's shoulder area, providing coverage of most of the patient's shoulder. Dressing 800 is configured for use with a negative pressure source to allow negative pressure to be established and maintained on the patient's shoulder. Dressing 800 can be used to promote healing of wounds (e.g., surgical incisions) on the shoulder and / or help reduce swelling on the patient's shoulder. Dressing 800 can also be applied to and positioned on a variety of other anatomical areas, such as the neck and upper back areas, or joint areas, such as the shoulder, elbow, hip, knee, or ankle, or other areas with suitable geometry.

[0078] Dressing 800 may consist of multiple layers and materials as described above for other dressing implementation schemes, such as... Figure 4 and 6 As shown in the diagram and referred to above. For example, the manifold layer of the dressing 800 may be positioned between the sterile cover layer and the patient interface layer, and may be etched as described in detail above to facilitate the flexibility and conformability of the dressing 800. The dressing 800 is constructed in a manner similar to the embodiments described above, and has additional features highlighted in the following detailed embodiments.

[0079] The dressing 800 includes a main body portion 802, a first wing 804 extending from the main body portion 802 in a first transverse direction, and a second wing 806 extending from the main body portion 802 in a second transverse direction opposite to the first transverse direction. The main body portion 802, the first wing 804, and the second wing 806 may be composed of and define a sterile drape layer, a manifold layer, and a wound interface layer. In other words, the sterile drape layer, the manifold layer, and the wound interface layer are all formed as the main body portion 802, the first wing 804, and the second wing 806, and are layered to form the dressing 800. The terms "first" and "second" in this specific embodiment are used as labels to distinguish different portions of the dressing 800 and are not intended to imply a hierarchical structure.

[0080] The main body portion 802 extends longitudinally, and a first wing portion 804 and a second wing portion 806 extend from the main body portion 802 in a region spaced apart from one end of the main body portion 802. The first wing portion 804 has an elliptical shape and extends away from a first side 808 of the main body portion 802 and along the longitudinal direction of the main body portion 802, such that a gap 810 is provided between the first side 808 of the main body portion 802 and a first tip 812 of the first wing portion 804. The main body portion 802 extends longitudinally beyond (beyond) the first tip 812. The gap 810 may be defined by an angle between the first side 808 of the main body portion 802 and the first wing portion 804, which is in the range of 15 degrees to 45 degrees, for example, approximately 30 degrees.

[0081] The second wing 806 has an elliptical shape and extends away from the second side 814 of the main body portion and along the longitudinal direction of the main body portion 802, such that a gap 816 is provided between the second side 814 of the main body portion 802 and the second tip 818 of the second wing 806. The gap 816 may be defined by the angle between the second side 814 and the second wing 806, which is in the range of 15 degrees to 45 degrees, for example, about 30 degrees.

[0082] In the illustrated embodiment, the dressing 800 is symmetrical about the longitudinal axis of the body portion 802, and the second wing 806 is substantially shaped as a mirror image of the first wing 804, having substantially the same shape and size (e.g., in one embodiment, in a "tomahawk" shape). In other embodiments, the first wing 804 and the second wing 806 may have different sizes or shapes from each other.

[0083] As shown in the figure, the main body portion 802 includes a concave edge 820 extending between a first wing 804 and a second wing 806 along the end of the main body portion 802. The concave edge 820 is configured to facilitate the conformation of the dressing 800 to the patient's shoulder region, for example by providing space for the patient's trapezius muscle or neck. Thus, the concave edge 820 can aid in the conformation of the dressing 800 to the patient by extending around rather than beyond the trapezius muscle or other anatomical features that protrude perpendicularly to the surface of the surrounding tissue.

[0084] The dressing 800 is shown including an adhesive edging 822. The adhesive edging 822 extends around the periphery of the dressing 800 and is configured to adhere the dressing 800 to the patient's skin. The adhesive edging 822 provides a substantially airtight seal between the dressing 800 and the patient's skin. In various applications, the adhesive edging 822 may also be configured to adhere to itself or to other portions of the dressing 800. Thus, the adhesive edging 822 is configured to secure the dressing 800 to a suitable location on the patient (e.g., at the patient's shoulder) and to provide a sealed volume between the dressing 800 and the patient's skin.

[0085] from Figure 8 From a perspective view, the removable backing 824 is shown attached to the patient-facing side of the dressing 800. The removable backing 824 protects the patient-facing side of the dressing 800 during transport, storage, and handling, and can be removed upon application to expose the adhesive of the adhesive wrap 822 and the patient interface layer of the dressing 800. The removable backing 824 may be configured as follows: Figure 8 The flaps (folds, protrusions, etc.) shown are designed to allow easy removal of the removable backing 824 from the dressing 800 when the dressing is ready to be applied to the patient.

[0086] Figure 8A connection port 826 is also shown located at the body portion 802 of the dressing 800. In various embodiments, the connection port 826 may be located at other locations on the dressing 800. The connection port 826 is configured to connect the manifold layer of the dressing 800 to tubing (conduit, etc.) extending to a negative pressure source, such that the manifold layer is in pneumatic communication with the negative pressure source, and the negative pressure source can be operated to establish negative pressure at the manifold layer (e.g., by pumping air out of the manifold layer via the connection port 826 and the tubing).

[0087] See now Figure 9 A top view of an exemplary embodiment shows a first variation of the dressing 800. Figure 9 In one embodiment, the adhesive edging 822 extends completely across the gap 810 between the first tip 812 of the first wing 804 and the first side 808 of the body portion 802, and extends completely across the gap 816 between the second tip 818 of the second wing 806 and the second side 814 of the body portion 802. Therefore, although the layer defining the dressing 800 is shown to have the aforementioned wing shape, Figure 9 In one embodiment, adhesive edging closes the gap 810 between the first wing 804 and the body portion 802, and the gap 816 between the second wing 806 and the body portion 802. The adhesive edging may be attached to the patient's skin across gaps 810 and 816 to seal the dressing 800 to the patient. In other cases, the healthcare provider may use scissors or other tools to cut the adhesive edging 822 in one or both of gaps 810 and 816 to adapt the dressing 800 to the patient in a customizable manner.

[0088] See now Figure 10 A second variation of the dressing 800 is shown in a top view according to an exemplary embodiment. Figure 10 In the example, the adhesive edging 822 is perforated in gaps 810 and 816. Figure 10 A first perforation 1000 is shown, which extends along the centerline of the gap 810 between the first side 808 of the body portion 802 and the first tip 812 of the first wing 804 (e.g., offset equally from the first side 808 and the first tip 812). The first perforation 1000 extends radially from the intersection between the first wing 804 and the body portion 802. Figure 10A second perforation 1002 is also shown, extending along the centerline of the gap 816 between the second side 814 of the main body portion 802 and the second tip 818 of the second wing 806. The second perforation 1002 extends radially from the intersection between the second wing 806 and the main body portion 802. The first perforation 1000 allows for controlled tearing of the adhesive binding 822 in the first gap 810, and the second perforation 1002 allows for controlled tearing in the second gap 816.

[0089] When selectively torn by the patient, the first perforation 1000 and the second perforation 1002 allow adjustment of the dimensions of the first gap 810 and the second gap 816 to facilitate application of the dressing 800 in a desired geometry. For example, by tearing the adhesive wrap 822 along the first perforation 1000, the first wing can be further pulled away from the first side 808 of the body portion 802 (by forming a space at the first perforation 1000) or brought closer to the first side 808 of the body portion 802 (by overlapping a portion of the adhesive layer from either side of the first perforation 1000). The second perforation 1002 enables a similar option for adjusting the dimensions of the second gap 816. Therefore, the first perforation 1000 and the second perforation 1002 facilitate the application of the dressing 800 to different anatomical regions or to patients of different body types.

[0090] See now Figure 11 A top view of an exemplary embodiment shows a third variation of dressing 800. Figure 11In one embodiment, the adhesive edging 822 is formed with a first notch 1100 at a first gap 810 and a second notch 1102 at a second gap 816. The first notch 1100 and the second notch 1102 cause the adhesive edging 822 to have a shape substantially matching the wing shape of the dressing 800. The first notch 1100 extends partially into the first gap 810 such that the adhesive edging 822 extends continuously across only a portion of the first gap 810. The second notch 1102 extends partially into the second gap 816 such that the adhesive edging extends continuously across only a portion of the second gap 818. In some cases (e.g., for some patients, for some applications), the first notch 1100 and the second notch 1102 allow for sufficient adjustability in the dimensions of the first gap 810 and the second gap 816 (e.g., by widening the notch, by overlapping material to reduce the notch size). In other cases, the adhesive binding 822 can be cut or torn between the first notch 1100 and the first wing 804 and / or the first side 808 of the main body portion 802 to achieve further adjustability. Similarly, the adhesive binding 822 can be cut or torn between the second notch 1102 and the second wing 806 and / or the second side 814 of the dressing 800 to achieve further adjustability. Therefore, the first notch 1100 and the second notch 1102 facilitate the application of the dressing 800 to different anatomical regions or to patients of different body types.

[0091] See now Figure 12 This illustrates an exemplary implementation method. Figure 8 The dressing 800 is applied to the patient at the first application location and orientation, as illustrated in the diagram. Figure 12 A first perspective view 1200, a second perspective view 1202, and a third perspective view 1204 are shown to provide a multi-angle illustration of how the dressing 800 is applied to a patient's shoulder. The first perspective view 1200 and the second perspective view 1202 show the dressing 800 applied to the patient's right shoulder, while the third perspective view 1204 shows the dressing 800 applied to the patient's left shoulder.

[0092] In order to apply such Figure 12 The dressing 800 shown can first have its removable backing 824 removed from it. The dressing 800 can be substantially flat (e.g., flat) during packaging and dispensing. During application, the dressing 800 is flexed to conform to the patient's shoulder to achieve... Figure 12 The application is shown in the diagram. The main body 802 of the dressing 800 is adapted to the lateral side of the shoulder region (e.g., above the deltoid muscle, on the patient's lateral side) and is curved to extend over the shoulder to the upper (top) side of the shoulder region. Figure 12As shown, the main body portion 802 is oriented such that the concave edge 820 is positioned on the upper side of the shoulder and closest to the patient's neck, wherein the first wing portion 804 and the second wing portion 806 are also positioned extending from the main body portion 802 on the upper side of the shoulder.

[0093] When Figure 12 As shown in the first perspective view 1200 and the second perspective view 1202, when the dressing 800 is applied to the patient's right shoulder, the first wing 804 bends (folds, etc.) relative to the main body portion 802 to conform to the rear side of the patient's right shoulder (i.e., towards the patient's back), and the second wing 806 bends to conform to the front side of the patient's right shoulder (i.e., towards the patient's front). When as... Figure 12 As shown in the third perspective view 1204, when the dressing 800 is applied to the patient's left shoulder, the first wing 804 bends relative to the main body portion 802 to conform to the front of the patient's left shoulder, and the second wing 806 bends to conform to the back of the patient's left shoulder. Figure 12 As shown, the first gap 810 and the second gap 816 can be roughly aligned with the patient's armpit (e.g., the point, line, or area where the patient's arm is separated from the patient's torso).

[0094] The adhesive edging 822 contacts the patient's skin to attach the dressing 800 to the patient and provide a substantially airtight seal between the patient and the dressing 800. In some cases, applying the dressing 800 may include adjusting the size of the first gap 810 by bending the first wing 804 toward or away from the first side 808 of the body portion 802 and using the adhesive edging 822 to hold the first gap 810 in its adjusted form. For example, a first portion of the adhesive edging 822 may overlap with a second portion of the adhesive edging 822 at the first gap 810 to hold the first gap 810 at a reduced size. The adhesive edging 822 may then also be attached to the patient's skin. In other cases, the first gap 810 may be widened by pulling the first wing 804 away from the first side 808 of the body portion 802 and attaching the adhesive edging 822 to the patient, while the gap 810 is widened to maintain the widened interval at the gap 810. The second gap 816 may also be treated similarly.

[0095] like Figure 12 Applying dressing 800 may also include connecting the connection port 826 of dressing 800 to a negative pressure source. The negative pressure source can then be operated to aspirate dressing 800 into negative pressure, thereby providing negative pressure therapy at the shoulder area covered by dressing 800. In some cases, a shoulder immobilization device (e.g., a sling) may also be used to immobilize the shoulder to which dressing 800 has been applied. In some embodiments, the negative pressure source is coupled to the shoulder immobilization device.

[0096] like Figure 12As shown, dressing 800 can be applied to provide substantially complete and continuous coverage of the patient's shoulder area. Therefore, dressing 800 can cover a large amount of intact skin, except for wounds or incisions in the shoulder area. In some cases, dressing 800 is even suitable for situations where there are no wounds or incisions on the patient's skin. By providing coverage of the shoulder area and, in part due to the wing-shaped shape of dressing 800, dressing 800 allows a large portion of the shoulder area to be exposed to negative pressure, which, in addition to being beneficial for wound healing, can also reduce swelling in the shoulder area. Therefore, dressing 800 can be used to treat injuries (such as sprains, dislocations, soft tissue tears, fractures, and bone cracks) to help reduce swelling, for example, before surgery, and to promote the healing of surgical incisions and the recovery of underlying tissues after surgery. Dressing 800 can also be used to treat burns, traumatic wounds, ulcers, etc., that may be present in the patient's shoulder area. Therefore, dressing 800 provides a variety of therapeutic benefits through substantially complete and continuous coverage of the shoulder area.

[0097] See now Figure 13 This illustrates an exemplary implementation method. Figure 8 The dressing 800 is applied to the patient at the second application position and orientation, as illustrated in the diagram. Figure 13 It shows relative to Figure 1 The dressing 800 is applied upside down. Figure 13 A main body portion 802 is shown extending downwards along the lateral side of the shoulder region from the upper side of the shoulder region. A first wing portion 804 and a second wing portion 806 are shown. Figure 13 The orientation shown is positioned at the bottom of the dressing 800, such that the first wing 804 and the second wing 806 are positioned around the patient's deltoid and / or biceps muscles. Therefore, in Figure 13 In this case, dressing 800 primarily covers the patient's upper arm and can be used to treat wounds on the lateral surface of the arm, such as those that may be incisions during total shoulder replacement surgery. Therefore, Figure 13 One embodiment provides flexibility for the dressing 800, which can be applied in a variety of orientations and locations, which may be considered advantageous by the caregiver.

[0098] See now Figure 14 This illustrates an exemplary implementation method. Figure 8 The dressing 800 is applied to the patient at the third application position and orientation, as illustrated in Figure 15. Figure 13 A similar orientation was applied, but the dressing had moved down the patient's arm. Specifically, as... Figure 14As shown, the second wing 806 of the dressing 800 is adhered to the patient's chest (e.g., on the patient's pectoral muscles). A gap 816 is positioned in the patient's armpit to allow the main body 802 of the dressing to extend along the patient's arm, while the first wing 804 is positioned above the patient's chest. The first wing 804 can be sealed to the lateral and / or posterior surfaces of the patient's arm. Thus, the dressing 800 is shown to provide coverage of the anterior and lateral aspects of the shoulder region (including most of the patient's upper arm) while leaving the upper surface of the shoulder region exposed. This application can be advantageous depending on the location of the wound or injury on the patient's shoulder. Therefore, Figure 14 Another embodiment provides the ability of dressing 800 to be applied in a variety of orientations and locations, which may be considered advantageous by the caregiver.

[0099] although Figure 13 and Figure 14 Alternative application methods are shown, such as applying the dressing to or near the patient's shoulder, but other application methods, such as applying the dressing 800 to other anatomical areas, are also possible. For example, the dressing 800 may be advantageously shaped to be positioned on the patient's back, such as in the upper chest region (e.g., where the concave edge 820 facilitates conformation to the patient's neck), or in the lumbar or sacral region (e.g., where the wings 804 and 806 improve coverage of the patient's lower back or pelvis as the body portion 802 extends along the patient's spine). As another embodiment, the dressing 800 may be applied to the patient's hip or elbow.

[0100] Configuration of exemplary implementation

[0101] The construction and arrangement of the systems and methods illustrated in the various exemplary embodiments are merely illustrative. While only a few embodiments are described in detail in this disclosure, many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, parameter values, installation arrangements, use of materials, color, orientation, etc.). For example, the positions of components may be reversed or otherwise changed, and the nature, number, or location of discrete components may be altered or changed. Therefore, all such modifications are intended to be included within the scope of this disclosure. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. Other substitutions, modifications, alterations, and omissions may be made to the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this disclosure.

Claims

1. A negative pressure therapy dressing, the negative pressure therapy dressing comprising: Disinfecting cover layer; An adhesive edging is configured to provide a seal between the sterile drape layer and the skin when the negative pressure treatment dressing is applied to the patient; and Manifold layer, the manifold layer being connected to the disinfection cover layer, wherein: The manifold layer includes: a main body portion extending longitudinally between a first end and a second end opposite to the first end, a first wing portion positioned on a first side of the main body portion, and a second wing portion positioned on a second side of the main body portion opposite to the first side, wherein the first wing portion and the second wing portion are both positioned at the first end of the main body portion and spaced apart from the second end. The first wing extends away from the first side and includes a first tip extending partially toward the second end, such that a first gap is formed between the first tip and the first side of the body portion, wherein the first gap is defined by an angle of 15 to 45 degrees between the first side and the first tip, and wherein the adhesive edging extends beyond the first side of the body portion, beyond the first tip, and extends from the first tip toward the second end across the first gap; and The second wing extends away from the second side and includes a second tip extending partially toward the second end, such that a second gap is provided between the second tip and the second side of the body portion, wherein the second gap is defined by an angle of 15 to 45 degrees between the second side and the second tip, and wherein the adhesive edging extends beyond the second side of the body portion, beyond the second tip, and extends from the second tip toward the second end across the second gap.

2. The negative pressure treatment dressing of claim 1, wherein the adhesive edging includes perforations in the first gap and the second gap to facilitate tearing or cutting the adhesive edging, and wherein the perforations extend along a first centerline of the first gap between the first side and the first tip and a second centerline of the second gap between the second side and the second tip.

3. The negative pressure therapeutic dressing of claim 1, wherein the main body portion includes a concave edge extending between the first wing and the second wing.

4. The negative pressure therapeutic dressing of claim 1, wherein the manifold layer is etched to promote the conformability of the manifold layer.

5. The negative pressure therapeutic dressing according to claim 1, wherein the manifold layer is symmetrical about the longitudinal axis of the main body portion.

6. The negative pressure therapeutic dressing according to claim 1, wherein the first wing comprises an elliptical shape.

7. The negative pressure treatment dressing of claim 1, wherein the adhesive edging comprises an adhesive configured to selectively adhere to the skin, the adhesive edging, and the sterile cover layer.

8. The negative pressure therapeutic dressing of claim 1, wherein the manifold layer is configured to be applied to the shoulder region of the patient, the body portion corresponding to the lateral and superior sides of the shoulder region of the patient, the first wing corresponding to the anterior side of the shoulder region of the patient, and the second wing corresponding to the posterior side of the shoulder region of the patient.

9. A negative pressure therapy system, the negative pressure therapy system comprising: A dressing, defining a sealable volume, and comprising a body portion extending longitudinally between a first end and a second end opposite the first end, and a first wing positioned at the first end on a first side of the body portion, wherein the first wing extends away from the first side and includes a first tip extending partially toward the second end such that a first gap is provided between the first tip and the first side of the body portion, wherein the first gap is defined by an angle of 15 to 45 degrees between the first side and the first tip, and wherein the dressing includes an adhesive edging that extends beyond the first side of the body portion, beyond the first tip, and extends from the first tip toward the second end across the first gap; and A negative pressure source configured to be in fluid communication with the dressing and operable to establish negative pressure at the sealable volume.

10. The negative pressure therapy system of claim 9, further comprising a fixation device configured to fix the patient’s shoulder, wherein the negative pressure source is coupled to the fixation device.

11. The negative pressure therapy system of claim 9, wherein the adhesive edging includes a perforation in the first gap to facilitate tearing or cutting the adhesive edging in the first gap, and wherein the perforation extends along the centerline of the first gap between the first side and the first tip.

12. The negative pressure therapy system of Claim 9, wherein the dressing further comprises: A second wing is positioned at a first end on a second side of the main body portion, wherein the second wing extends away from the second side and includes a second tip extending partially toward the second end, such that a second gap is provided between the second tip and the second side of the main body portion.

13. The negative pressure therapy system of claim 12, wherein the main body portion includes a concave edge extending between the first wing and the second wing.

14. The negative pressure therapy system of claim 12, wherein the dressing is symmetrical about the longitudinal axis of the main body portion.

15. The negative pressure therapy system of claim 9, wherein the first wing comprises an elliptical shape.

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