# US 11,026,845 B2 · Wound-connection pads for fluid instillation and negative pressure wound therapy, and systems and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,026,845 B2 - Document ID: US11026845B2 - Status: Granted - Kind: B2 - Application number: 16/123,516 - Filed: 2018-09-06 - Published: 2019-03-07 - Granted: 2021-06-08 - Earliest claimed: 2010-01-20 - Assignees: KCI Licensing, Inc. - Applicants: KCI Licensing, Inc. - Inventors: Christopher Brian Locke; Colin John Hall; Aidan Marcus Tout; Paul S. Slack; Thomas Paul Lawhorn; Timothy Mark Robinson - Web page: https://patentgrep.com/patent/US11026845B2 ## CPC - A61M 1/86: {Connectors between drainage tube and handpiece, e.g. drainage tubes detachable from handpiece} - A61F 13/0226: {characterised by the support layer} - A61F 13/0253: {characterized by the adhesive material} - 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] - A61M 1/912: {Connectors between dressing and drainage tube} - A61M 1/966: {having a pressure sensor on or near the dressing} - B32B 37/06: characterised by the heating method - B32B 37/1045: {Intermittent pressing, e.g. by oscillating or reciprocating motion of the pressing means (B32B37/0076 takes precedence)} - B32B 37/12: characterised by using adhesives - B32B 38/0008: {Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation (heat treatment B32B38/0036)} - A61M 1/85: {with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants (for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208)} - A61M 1/92: {with liquid supply means} - A61M 2205/3331: Pressure; Flow - A61M 2205/3344: Measuring or controlling pressure at the body treatment site - B32B 2310/028: using vibration, e.g. sonic or ultrasonic - B32B 2310/0868: using radio frequency - B32B 2535/00: Medical equipment, e.g. bandage, prostheses or catheter - 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)} - 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) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract Connection pads for coupling fluid-instillation and negative pressure wound therapy (NPWT) apparatuses to wound dressing, and methods and wound dressings for breaching a drape after coupling a wound dressing to a fluid-instillation and/or NPWT apparatus. ## Claims ### Claim 1 A fluid-delivery system for providing fluid to a wound insert adapted to be in fluid communication with a wound, comprising: a wound dressing comprising a drape configured to be disposed over a wound insert; a fluid-delivery connection pad configured to be fluidly coupled to the wound insert through a first aperture in the drape, comprising: a first domed cover having a dressing side and a connection side, the dressing side forming a cavity having an upper portion and a base portion adapted to be disposed proximate the wound insert, a fluid lumen connection on the connection side configured to be coupled to a fluid source and having a fluid-delivery lumen on the dressing side extending from the fluid lumen connection, and a flange extending radially outward from the first domed cover and defining a terminus of the base portion, wherein the fluid-delivery lumen extends into the cavity for providing fluid to the wound insert; and a vacuum connection pad configured to be fluidly coupled to the wound insert through a second aperture in the drape, the second aperture being separated a distance from the first aperture. ### Claim 2 (depends on 1) The fluid-delivery system of claim 1, wherein the fluid-delivery connection pad comprises a pressure-sensor connection on the connection side configured to be coupled to a pressure sensor, and having a first pressure-sensor lumen on the dressing side extending from the pressure-sensor connection into the cavity and having an open end terminating proximate to the terminus of the base portion. ### Claim 3 (depends on 2) The fluid-delivery system of claim 2, wherein the flange has a lower surface substantially even with an open end of the first pressure-sensor lumen and the terminus of the base portion of the cavity. ### Claim 4 (depends on 1) The fluid-delivery system of claim 1, wherein the vacuum connection pad comprises a second domed cover having a dressing side and a connection side, the dressing side forming a second cavity having an upper portion and a base portion adapted to be disposed proximate a wound insert, a vacuum lumen connection on the connection side configured to be coupled to a vacuum source, and a vacuum lumen on the dressing side extending from the vacuum lumen connection and terminating within the upper portion of the cavity for providing a vacuum to the wound insert. ### Claim 5 (depends on 1) The fluid-delivery system of claim 1, wherein at least a portion of the dressing side of the first domed cover includes a plurality of grooves extending from the upper portion to the base portion of the cavity. ### Claim 6 (depends on 1) The fluid-delivery system of claim 1, wherein the flange comprises a lower edge having a plurality of radial guide channels extending radially outward from the base portion of the cavity and terminating within the flange. ### Claim 7 (depends on 6) The fluid-delivery system of claim 6, wherein the radial guide channels are each serrated perpendicular to a radial direction. ### Claim 8 (depends on 6) The fluid-delivery system of claim 6, wherein the lower edge of the flange comprises a plurality of arcuate collection channels concentric with the cavity, each arcuate collection channel extending around a portion of the cavity. ### Claim 9 (depends on 8) The fluid-delivery system of claim 8, wherein the plurality of radial guide channels extend outward from the base portion of the cavity and each terminate at one of the plurality of arcuate collection channels. ### Claim 10 (depends on 6) The fluid-delivery system of claim 6, wherein each of the radial guide channels is serrated perpendicular to a radial direction and comprises serrations with different depths. ### Claim 11 (depends on 6) The fluid-delivery system of claim 6, wherein the fluid-delivery lumen has an open end facing a side of the cavity. ### Claim 12 (depends on 6) The fluid-delivery system of claim 6, wherein a lateral portion of the fluid-delivery lumen opens downward toward the base portion of the cavity to form a downward opening. ### Claim 13 (depends on 12) The fluid-delivery system of claim 12, wherein the fluid-delivery lumen has a closed end so that the fluid-delivery lumen is only in fluid communication with the cavity through the downward opening in the lateral portion of the fluid-delivery lumen. ### Claim 14 (depends on 6) The fluid-delivery system of claim 6, further comprising a ring of adhesive coupled to the flange.