# US 10,869,973 B2 · Device for the supply of a gas to create a protecting atmosphere > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,869,973 B2 - Document ID: US10869973B2 - Status: Granted - Kind: B2 - Application number: 13/814,062 - Filed: 2010-08-06 - Published: 2013-08-29 - Granted: 2020-12-22 - Earliest claimed: 2010-08-06 - Assignees: Cardia Innovation AB - Applicants: Jan Van Der Linden - Inventors: Jan Van Der Linden - Web page: https://patentgrep.com/patent/US10869973B2 ## CPC - A61M 13/00: Insufflators for therapeutic or disinfectant purposes {, i.e. devices for blowing a gas, powder or vapour into the body (hand-held units in which gas flow is produced by muscular energy at the moment of use B05B11/062)} - A61B 90/40: Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment - A61B 17/3474: {Insufflating needles, e.g. Veress needles} - A61B 46/00: Surgical drapes - A61B 2017/00862: {elastic or resilient} - A61B 2090/401: {using air flow} - A61B 2217/005: with suction drainage system - 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)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A device and use thereof for supply of gas to an operational space configured to adjoin a temporarily open inner portion of a mammal during surgical operations. The device includes a supply conduit, connectable to the gas source including an outlet end, and a body having at least partly an annular shape extending along a circumferential path around centre axis enclosing the operational space. The body has an inner side, outer side, an open interior channel, and an opening allowing the gas to enter the body from the supply conduit. The body is manufactured in foam rubber-like material having large number of open cells functioning as supply nozzles permitting the supply of a substantially laminar, continuous gas stream into the operational space enabling the formation of a gas cushion in the operational space. ## Claims ### Claim 1 A device for the supply of a gas from a gas source to an operational space configured to adjoin a temporarily open inner portion of a mammal during surgical operations, wherein the device comprises: a supply conduit, which connects to the gas source and includes an outlet end; a body having at least partly an annular shape extending along a circumferential path around a center axis, the body surrounding the operational space and having an inner side facing the operational space, an outer side, an interior channel extending in parallel with the circumferential path, and an opening to allow the gas to enter the interior channel of the body from the supply conduit; a stiffening member made of a plastically deformable material, wherein the stiffening member extends in parallel with the circumferential path of the body and bends to any suitable shape to enable the body to be adapted to the specific body part of the mammal to be operated, and wherein the body is manufactured of foam rubber-like material having a large number of open cells functioning as supply nozzles so that the gas passes from the interior channel through the foam rubber-like material and through the inner side of the body, thereby supplying a substantially laminar, continuous gas stream into the operational space to form a gas cushion in the operational space, and a pliable cover member that covers the outer side of the body of the foam rubber-like material to direct the gas from the interior channel of the body inwards towards the open inner portion of the mammal, wherein the pliable cover member includes an outer surface and a passage extending through the outer surface and communicating with the supply conduit and the opening of the body, wherein the pliable cover member covers the entire outer side of the body, and wherein the outer side of the body of the foam rubber-like material is directly attached to said outer surface of the pliable cover member. ### Claim 2 (depends on 1) The device according to claim 1, wherein the pliable cover member includes a sleeve, which extends outwardly away from the body and is connected to the outlet end, said passage extending through the sleeve. ### Claim 3 (depends on 1) The device according to claim 1, wherein the body is substantially circular in a radial section with respect to the center axis. ### Claim 4 (depends on 1) The device according to claim 1, wherein the stiffening member enables plastic deformation of the annular shape of the body to adapt to positioning of the operational space in or at various body parts of the mammal. ### Claim 5 (depends on 1) The device according to claim 1, wherein the stiffening member is embedded in the body. ### Claim 6 (depends on 1) The device according to claim 1, wherein the stiffening member is a metal wire. ### Claim 7 (depends on 1) The device according to claim 1, wherein the foam rubber-like material includes poly-urethane foam. ### Claim 8 (depends on 1) The device according to claim 1, further comprising at least one attachment member configured to hold the device adjoined to the open inner portion during surgical operations. ### Claim 9 (depends on 1) The device according to claim 1, further comprising a draping sheet is-attached to the body. ### Claim 10 (depends on 1) The device according to claim 1, wherein the gas is carbon dioxide. ### Claim 11 (depends on 1) Use of the device according to claim 1, for the treatment and/or prevention of infections in an open inner portion of a mammal. ### Claim 12 (depends on 1) The device according to claim 1, wherein the pliable cover member covers part of an inner side of the body.