Patents by Inventor Pierre Croizat
Pierre Croizat has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8926593Abstract: A wound support (50) for use in the vacuum therapy of wounds, can be disposed in its intended use in a wound space underneath a vacuum dressing (6) sealing the wound space with respect to the atmosphere in an essentially vacuum-tight manner, wherein the wound space can communicate with a suction tube (10) to which a vacuum can be applied through an opening (20) in the vacuum dressing (6). The wound support (50) comprises a flexibly compliant foamed material and has a through-hole (54) that extends in the direction of the wound depth, which is used to insert or pass through a wound-side end section (44) of a fluid feed tube (40). A sleeve (56) is disposed in the through-hole (54) into which this end section (44) can be inserted.Type: GrantFiled: September 4, 2012Date of Patent: January 6, 2015Assignee: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein
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Publication number: 20140364822Abstract: The present invention relates to a bandage for use in negative-pressure wound therapy, more particularly for wounds in the abdominal region, comprising a flexible film as a wound contact layer and at least one conduit applied to the film, wherein the conduit communicates with the wound space through openings in the conduit and in the film.Type: ApplicationFiled: August 21, 2014Publication date: December 11, 2014Inventors: Pierre Croizat, Axel Eckstein, Ulrich Fink, Jurgen Hofstetter
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Patent number: 8845604Abstract: A portable device (2) for providing a vacuum for medical vacuum treatment of wounds on the body of a person or of an animal has a holding or carrying device (10) with two connecting sections (12, 14) on the housing, which are disposed on the housing part (4) for connection to two connecting sections of a holding or carrying strap on the strap, wherein the holding or carrying strap comprises a third strap-side connecting section, which is spaced apart from the opposing ends of the holding or carrying strap and from the first and second strap-side connecting sections disposed there, and arranged between these ends, for connection to one of the connecting sections on the housing and/or to a strap-side connecting section disposed at the end.Type: GrantFiled: May 31, 2012Date of Patent: September 30, 2014Assignee: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein
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Publication number: 20140276496Abstract: A device for negative pressure wound therapy having a cover material for air-tight sealing of the wound space connected to a negative pressure source; and a wound dressing having an open-cell polyurethane foam. The open-cell polyurethane foam has special properties, in particular a tensile strength after three days of storage in bovine serum, measured in accordance with DIN 53571, between 80 kPa and 300 kPa. The open-cell polyurethane foam may be used as a wound dressing in negative pressure wound therapy.Type: ApplicationFiled: May 28, 2014Publication date: September 18, 2014Applicant: PAUL HARTMANN AGInventors: Axel ECKSTEIN, Pierre CROIZAT, Ulrich FINK, Krzysztof-Daniel MALOWANIEC
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Publication number: 20140228786Abstract: The invention relates in general to an absorbent for the therapeutic treatment of a wound on the human or animal body by means of negative pressure. More particularly, the invention relates to an absorbent for the therapeutic treatment by means of negative pressure of a wound comprising, at its surface, a tissue structure which is sensitive and lies deep in the intact body, for example a tendon or bone.Type: ApplicationFiled: December 20, 2013Publication date: August 14, 2014Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Cornelia Wolf
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Publication number: 20140228788Abstract: The invention relates to a bandage set suitable for use in the treatment of wound cavities, especially for use in the treatment of wound cavities by means of negative pressure, comprising i) a first bandage material as wound contact layer, comprising a flexible, perforated film (11, 21, 31) having a first and a second side, the perforations (15) present in the film being provided in such a way that the perforation edges (16) protrude from the second side of the film (11, 21, 31), with three-dimensional structures being present on the second side of the film (11, 21, 31), and the first side being intended for contacting with a wound base (3), more particularly the internal surface of a wound tube, ii) a separately provided second bandage material for introduction into a wound cavity, comprising a porous polymer foam (12, 22, 32), the polymer foam (12, 22, 32) being an open-cell polymer foam which comprises struts (14) on or close to its surface and/or which comprises, on its surface, hollow spaces (13) open tType: ApplicationFiled: February 10, 2014Publication date: August 14, 2014Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Cornelia Wolf, Njikoha Ebigbo
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Publication number: 20140228787Abstract: The invention relates to an apparatus suitable for use in the negative-pressure therapy of the open abdomen, including a first bandage ply (11, 21, 31) having a first and a second side, as organ-protecting layer, the first side being intended for application to a wound base (3), more particularly exposed internal organs or the greater omentum, a second bandage ply (12, 22) provided separately from the first bandage ply and having a first and a second side, the first side of the second bandage ply (12, 22) being intended for application to the second side of the first bandage ply, a joining means by means of which the second bandage ply (12, 22), after application of the first ply (11, 21, 31) to exposed internal organs or to the greater omentum, can be joined to the first bandage ply (11, 21, 31), making it possible to avoid movement of the first bandage ply (11, 21, 31) with respect to the second bandage ply (12, 22) as far as possible during the therapy and/or facilitating simultaneous removal of first (11,Type: ApplicationFiled: February 10, 2014Publication date: August 14, 2014Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Cornelia Wolf
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Publication number: 20140221946Abstract: The invention relates to an absorbent for the therapeutic treatment of a wound on the human or animal body by means of negative pressure. More particularly, the invention relates to an absorbent for the therapeutic treatment by means of negative pressure of a wound comprising, at its surface, a tissue structure which is sensitive and lies deep in the intact body, the tissue structure being a blood vessel or a nerve.Type: ApplicationFiled: December 20, 2013Publication date: August 7, 2014Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Cornelia Wolf
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Patent number: 8772567Abstract: A device for negative pressure wound therapy having a cover material for air-tight sealing of the wound space connected to a negative pressure source; and a wound dressing having an open-cell polyurethane foam. The open-cell polyurethane foam has special properties, in particular a tensile strength after three days of storage in bovine serum, measured in accordance with DIN 53571, between 80 kPa and 300 kPa. The open-cell polyurethane foam may be used as a wound dressing in negative pressure wound therapy.Type: GrantFiled: August 19, 2011Date of Patent: July 8, 2014Assignee: Paul Hartmann AGInventors: Axel Eckstein, Pierre Croizat, Ulrich Fink, Krzysztof-Daniel Malowaniec
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Patent number: 8771244Abstract: An attachment device (2) for use in the vacuum therapy of wounds has a vacuum-tight mounting element (6). A conduit is fastening to the upper side of that mounting element in a vacuum-tight manner. The conduit (4) communicates with the wound space through openings (22) in the mounting element (6) and in the vacuum dressing. The conduit (4) is flexible and flat and is connected to the mounting element (6) non-detachably and extensively in a longitudinal section (8) on the wound side over at least 70% of its surface projected perpendicularly onto the mounting means (6). The conduit (4) is made out of a flexible elastomer material of Shore A hardness of no more than 60 and the thickness (D) of the combined conduit (4) and mounting element (6) is no more than 7 mm.Type: GrantFiled: December 21, 2010Date of Patent: July 8, 2014Assignee: Paul Hartmann AktiengesellschaftInventors: Axel Eckstein, Juergen Hofstetter, Pierre Croizat, Klaus Klimenta, Steffen Suess
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Publication number: 20140180187Abstract: A wound care product having buffer substances and a wound cover. The wound cover has a foam. The pH value of the buffer solution obtained when the buffer substances are dissolved in demineralized water at 37° C. is between 3 and 7.Type: ApplicationFiled: June 29, 2012Publication date: June 26, 2014Inventors: Pierre Croizat, Martin Junginger, Sandra Stelzer
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Publication number: 20140171888Abstract: A trimmable wound bandage, in particular film or foil bandage, for air- and negative pressure tight closure of a wound space in negative pressure therapy, includes a flat material layer, in particular on film or foil basis; which effects the air- and negative pressure tight closure, a support element provided on a wound-averted side of the flat material layer and stabilizing the flat material layer in areal extent during application of the bandage, a glue coating provided on a wound-facing side of the flat material layer, a detachable protective layer covering the glue coating until application of the bandage, and multiple manually graspable, in particular tab-shaped or strip-shaped gripping regions provided in circumferential direction of the bandage and distributed over an outer circumference of the bandage, said multiple gripping regions not adhering to the glue coating for facilitating detachment of the protective layer.Type: ApplicationFiled: December 16, 2013Publication date: June 19, 2014Applicant: PAUL HARTMANN AGInventors: PIERRE CROIZAT, AXEL ECKSTEIN, JÜRGEN HOFSTETTER
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Publication number: 20140166198Abstract: A method for producing a connection device for use in the negative pressure therapy of wounds, includes introducing a flexible conduit into an injection mold, the conduit being constructed for impingement with negative pressure and/or fluid media, and comprising at least two lumens, forming a coupling body at an end section of the conduit by injection molding an elastomeric material to the end section of the conduit, said coupling body being constructed for attachment to a negative pressure bandage which covers the wound and seals the wound tight against the environment, said the conduit being constructed for communication with the wound space through at least one opening, and attaching and fastening an end cap to the coupling body, thereby sealing the coupling body tight to the outside.Type: ApplicationFiled: August 8, 2013Publication date: June 19, 2014Applicant: Paul Hartmann AGInventors: Axel ECKSTEIN, Pierre CROIZAT, Ali SAGAS, Oded STEIN
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Publication number: 20140142524Abstract: Method for vacuum therapy of wounds using a cover material (1) that is impermeable to air, and a means for functional connection of the wound space (4) with a source of vacuum outside the cover material, and at least one activated absorbent/rinsing body (3) that contains at least one superabsorbent polymer.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: PAUL HARTMANN AGInventors: Axel Eckstein, Ulrich Fink, Pierre Croizat
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Publication number: 20140128824Abstract: A connecting device (2) for vacuum treatment of wounds has a conduit element (4) which can be evacuated and a carrier element (6), wherein the connecting device can be disposed onto a vacuum dressing (13) which extends over the wound and tightly seals it from the atmosphere. The conduit element (4) communicates with the wound space through at least one opening (16) in a wall (18) of the conduit element (4) facing the vacuum dressing and through at least one opening in the vacuum dressing (13). The conduit element (4) is flexible and flat and the conduit element (4) and the carrier element (6) are formed in one piece in that, starting from a central longitudinal section (10) which forms a longitudinal channel (12), the conduit element (4) merges on both sides into lateral wing sections (8). The flat conduit element (4) with longitudinal section (10) and lateral wing sections (8) can be widely applied onto the vacuum dressing (13).Type: ApplicationFiled: January 10, 2014Publication date: May 8, 2014Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Juergen Hofstetter, Ulrich Fink
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Publication number: 20140046278Abstract: A connection device for use in the negative pressure therapy of wounds, includes a flexible conduit having at least two lumens and being constructed for impingement with negative pressure and/or fluid media; a coupling body made of an elastomeric flexible material, and non-detachably molded onto a wound-side end section of the conduit and being constructed for arrangement on a negative pressure bandage which covers the wound and seals the wound against the atmosphere, wherein the conduit communicates with a wound space through at least one opening in the coupling body; and a fluid inlet section for insertion through an opening in the negative pressure bandage into the wound space. The fluid inlet section is formed on the coupling body and protrudes over a walling of the coupling body, which walling faces the negative pressure bandage. The fluid inlet section is fluidly connected interiorly of the coupling body with a further lumen for delivering a fluid medium.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicant: Paul Hartmann AGInventors: Axel Eckstein, Pierre Croizat, Cornelia Wolf
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Publication number: 20140046281Abstract: A connection device for use in the negative pressure therapy of wounds includes a flexible conduit which can be impinged with negative pressure and/or fluid media, the conduit having at least two lumens, a coupling body formed by an elastomeric flexible material which is non-detachably injection molded to a wound-side end section of the conduit, and being constructed for placement on a negative pressure bandage which covers and seals the wound negative pressure tight against the atmosphere, the conduit communicating through at least one opening in the coupling body with the wound space, and an end cap attached and preferably non-detachably fastened to the injection molded-on material of the coupling body, thereby sealing the coupling body tight against the outside.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicant: PAUL HARTMANN AGInventors: Axel Eckstein, Pierre Croizat, Ali Sagas, Oded Stein
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Publication number: 20130289536Abstract: The invention relates to a fastening device for a negative-pressure therapy appliance, in particular for negative-pressure treatment of wounds on the human or animal body, comprising a holding means, a hollow body and a receiving area.Type: ApplicationFiled: April 19, 2013Publication date: October 31, 2013Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Jurgen Hofstetter, Andreas Mahler, Andreas Weinberg, Martin Ruf, Astrid Fonfara-Dorr
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Publication number: 20130245582Abstract: The present invention relates to a wound dressing for use in negative-pressure wound therapy, in particular for wounds in the abdominal region. The wound dressing comprises a first flexible film with a first and a second side, with the first side being provided for application on the wound bed, more particularly on exposed internal organs or on the greater omentum, and with the first film furthermore having a multiplicity of openings distributed across the area. Moreover, the wound dressing comprises at least three conduit sections, applied to the second side of the first film, made of a flexible elastomeric material with a thickness (H) of at most 20 mm, with each of the conduit sections having at least one continuous cavity, and with each of the conduit sections having a flat design. Furthermore, the wound dressing is distinguished by virtue of the fact that, with the exception of the openings situated at the ends, each of the conduit sections has no further openings.Type: ApplicationFiled: September 6, 2012Publication date: September 19, 2013Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Cornelia Wolf
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Publication number: 20130245527Abstract: The invention relates to a wound dressing and to a device for use in negative-pressure wound therapy, in particular for wounds in the abdominal region, and also to methods for producing the device. The wound dressing comprises at least one flexible film for application onto the wound bed, more particularly onto exposed internal organs or onto the greater omentum, and furthermore at least one pocket, which is present on the side of the wound dressing that faces away from the wound during use and which simplifies the uniform application and placement of the wound dressing on the wound bed. The invention furthermore relates to a surgical instrument for applying a wound dressing.Type: ApplicationFiled: September 6, 2012Publication date: September 19, 2013Applicant: Paul Hartmann AGInventors: Pierre Croizat, Axel Eckstein, Comelia Wolf