Patents Assigned to Mimedx Group, Inc.
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Patent number: 8703207Abstract: Described herein are tissue grafts derived from the placenta. The grafts are composed of at least one layer of amnion tissue where the epithelium layer has been substantially removed in order to expose the basement layer to host cells. By removing the epithelium layer, cells from the host can more readily interact with the cell-adhesion bio-active factors located onto top and within of the basement membrane. Also described herein are methods for making and using the tissue grafts. The laminin structure of amnion tissue is nearly identical to that of native human tissue such as, for example, oral mucosa tissue. This includes high level of laminin-5, a cell adhesion bio-active factor show to bind gingival epithelia-cells, found throughout upper portions of the basement membrane.Type: GrantFiled: August 2, 2013Date of Patent: April 22, 2014Assignee: Mimedx Group, Inc.Inventors: John Daniel, Randall Spencer, Robert Tofe, John Russo
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Publication number: 20140067058Abstract: Described herein are tissue grafts derived from the placental tissue that are reinforced with at least one biocompatible mesh. The tissue grafts possess good adhesion to biological tissues and are useful in wound healing applications. Also described herein are methods for making and using the tissue grafts.Type: ApplicationFiled: August 14, 2013Publication date: March 6, 2014Applicant: MIMEDX GROUP, INC.Inventors: Thomas J. KOOB, Robert TOFE, Elizabeth CHEN
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Placental tissue grafts modified with a cross-linking agent and methods of making and using the same
Publication number: 20140052247Abstract: Described herein are tissue grafts derived from the placenta that possess good adhesion to biological tissues and are useful in would healing applications. In one aspect, the tissue graft includes (1) two or more layers of amnion, wherein at least one layer of amnion is cross-linked, (2) two or more layers of chorion, wherein at least one layer of chorion is cross-linked, or (3) one or more layers of amnion and chorion, wherein at least one layer of amnion and/or chorion is cross-linked. In another aspect, the grafts are composed of amnion and chorion cross-linked with one another. In a further aspect, the grafts have one or more layers sandwiched between the amnion and chorion membranes. The amnion and/or the chorion are treated with a cross-linking agent prior to the formation of the graft. The presence of the cross-linking agent present on the graft also enhances adhesion to the biological tissue of interest. Also described herein are methods for making and using the tissue grafts.Type: ApplicationFiled: March 15, 2013Publication date: February 20, 2014Applicant: MiMedx Group, Inc.Inventor: MiMedx Group, Inc. -
Publication number: 20140052274Abstract: Described herein are tissue grafts composed of at least one membrane, where at least one side of the membrane has micronized placental tissue applied it. Also described herein are methods for making and using the tissue grafts.Type: ApplicationFiled: March 15, 2013Publication date: February 20, 2014Applicant: MiMedx Group, Inc.Inventor: MiMedx Group, Inc.
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Publication number: 20140050788Abstract: Described herein are compositions composed of micronized placental components, extracts of micronized placental components, and pharmaceutical compositions thereof. The compositions have numerous medical applications. Methods for making and using the micronized compositions and the extracts thereof are also described herein.Type: ApplicationFiled: August 9, 2013Publication date: February 20, 2014Applicant: MiMedx Group Inc.Inventors: John Daniel, Randall Spencer, Somaly Sith
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Publication number: 20140051059Abstract: This invention relates generally to a dehydration device and methods for drying biological materials to produce dried biological materials having enhanced structural properties. More specifically, the invention relates to a dehydration device and related methods for drying biological tissue to produce enhanced tissue grafts.Type: ApplicationFiled: January 17, 2013Publication date: February 20, 2014Applicant: MiMedx Group, Inc.Inventor: MiMedx Group, Inc.
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Patent number: 8642092Abstract: Described herein are tissue grafts derived from the placenta. The grafts are composed of at least one layer of amnion tissue where the epithelium layer has been substantially removed in order to expose the basement layer to host cells. By removing the epithelium layer, cells from the host can more readily interact with the cell-adhesion bio-active factors located onto top and within of the basement membrane. Also described herein are methods for making and using the tissue grafts. The laminin structure of amnion tissue is nearly identical to that of native human tissue such as, for example, oral mucosa tissue. This includes high level of laminin-5, a cell adhesion bio-active factor show to bind gingival epithelia-cells, found throughout upper portions of the basement membrane.Type: GrantFiled: April 11, 2013Date of Patent: February 4, 2014Assignee: Mimedx Group, Inc.Inventors: John Daniel, Randall Spencer, John Russo, Robert Tofe
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Publication number: 20140017280Abstract: Described herein are compositions composed of micronized particles derived from one or more components present in placental tissue in combination with one or more bone grafts. The compositions have numerous medical applications. Methods for making and using the micronized compositions are also described herein.Type: ApplicationFiled: October 8, 2012Publication date: January 16, 2014Applicant: Mimedx Group, Inc.Inventor: MiMedx Group, Inc.
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Patent number: 8623421Abstract: A method for preparing placenta membrane tissue grafts for medical use, includes obtaining a placenta from a subject, cleaning the placenta, separating the chorion tissue from the amniotic membrane, mounting a selected layer of either the chorion tissue or the amniotic membrane onto a drying fixture, dehydrating the selected layer on the drying fixture, and cutting the selected layer into a plurality of tissue grafts. Preferably, the drying fixture includes grooves or raised edges that define the outer contours of each desired tissue graft, after they are cut, and further includes raised or indented logos that emboss the middle area of the tissue grafts during dehydration and that enables an end user to distinguish the top from the bottom side of the graft. The grafts are comprised of single layers of amnion or chorion, multiple layers of amnion or chorion, or multiple layers of a combination of amnion and chorion.Type: GrantFiled: July 26, 2013Date of Patent: January 7, 2014Assignee: MiMedx Group, Inc.Inventor: John Daniel
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Publication number: 20130337035Abstract: A method for preparing placenta membrane tissue grafts for medical use, includes obtaining a placenta from a subject, cleaning the placenta, separating the chorion tissue from the amniotic membrane, mounting a selected layer of either the chorion tissue or the amniotic membrane onto a drying fixture, dehydrating the selected layer on the drying fixture, and cutting the selected layer into a plurality of tissue grafts. Preferably, the drying fixture includes grooves or raised edges that define the outer contours of each desired tissue graft, after they are cut, and further includes raised or indented logos that emboss the middle area of the tissue grafts during dehydration and that enables an end user to distinguish the top from the bottom side of the graft. The grafts are comprised of single layers of amnion or chorion, multiple layers of amnion or chorion, or multiple layers of a combination of amnion and chorion.Type: ApplicationFiled: July 30, 2013Publication date: December 19, 2013Applicant: MiMedx Group, Inc.Inventor: John Daniel
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Patent number: 8603171Abstract: Spinal disc and other implants include at least one flexible keel that extends substantially outwardly, typically upwardly or downwardly, beyond the primary body of the implant. Methods of fabricating elastomeric implants using a mold are also described.Type: GrantFiled: January 24, 2007Date of Patent: December 10, 2013Assignee: MiMedx Group, Inc.Inventors: John W. McClellan, III, Guilhem Denoziere, Rebeccah Brown, Matthew Miller
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Patent number: 8597687Abstract: A method for preparing placenta membrane tissue grafts for medical use, includes obtaining a placenta from a subject, cleaning the placenta, separating the chorion tissue from the amniotic membrane, mounting a selected layer of either the chorion tissue or the amniotic membrane onto a drying fixture, dehydrating the selected layer on the drying fixture, and cutting the selected layer into a plurality of tissue grafts. Preferably, the drying fixture includes grooves or raised edges that define the outer contours of each desired tissue graft, after they are cut, and further includes raised or indented logos that emboss the middle area of the tissue grafts during dehydration and that enables an end user to distinguish the top from the bottom side of the graft. The grafts are comprised of single layers of amnion or chorion, multiple layers of amnion or chorion, or multiple layers of a combination of amnion and chorion.Type: GrantFiled: August 7, 2012Date of Patent: December 3, 2013Assignee: Mimedx Group, Inc.Inventor: John Daniel
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Publication number: 20130317625Abstract: A method for preparing placenta membrane tissue grafts for medical use, includes obtaining a placenta from a subject, cleaning the placenta, separating the chorion tissue from the amniotic membrane, mounting a selected layer of either the chorion tissue or the amniotic membrane onto a drying fixture, dehydrating the selected layer on the drying fixture, and cutting the selected layer into a plurality of tissue grafts. Preferably, the drying fixture includes grooves or raised edges that define the outer contours of each desired tissue graft, after they are cut, and further includes raised or indented logos that emboss the middle area of the tissue grafts during dehydration and that enables an end user to distinguish the top from the bottom side of the graft. The grafts are comprised of single layers of amnion or chorion, multiple layers of amnion or chorion, or multiple layers of a combination of amnion and chorion.Type: ApplicationFiled: July 26, 2013Publication date: November 28, 2013Applicant: MiMedx Group, Inc.Inventor: John DANIEL
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Publication number: 20130317624Abstract: Described herein are tissue grafts derived from the placenta. The grafts are composed of at least one layer of amnion tissue where the epithelium layer has been substantially removed in order to expose the basement layer to host cells. By removing the epithelium layer, cells from the host can more readily interact with the cell-adhesion bio-active factors located onto top and within of the basement membrane. Also described herein are methods for making and using the tissue grafts. The laminin structure of amnion tissue is nearly identical to that of native human tissue such as, for example, oral mucosa tissue. This includes high level of laminin-5, a cell adhesion bio-active factor show to bind gingival epithelia-cells, found throughout upper portions of the basement membrane.Type: ApplicationFiled: August 2, 2013Publication date: November 28, 2013Applicant: MiMedx Group, Inc.Inventors: John Daniel, Randall Spencer
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Publication number: 20130230561Abstract: Described herein are placental tissue grafts produced by chemical dehydration followed by freeze-drying the placental tissue to produce the tissue graft. The tissue grafts retain their biological properties preferably at the same level as the placental tissues before they are processed. The placental tissue grafts have numerous medical applications. Methods for making the tissue graft compositions are also described herein.Type: ApplicationFiled: November 30, 2012Publication date: September 5, 2013Applicant: MIMEDX GROUP, INC.Inventors: John Daniel, Randall Spencer, Steven Ray
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Publication number: 20130224159Abstract: Described herein are tissue grafts derived from the placenta. The grafts are composed of at least one layer of amnion tissue where the epithelium layer has been substantially removed in order to expose the basement layer to host cells. By removing the epithelium layer, cells from the host can more readily interact with the cell-adhesion bio-active factors located onto top and within of the basement membrane. Also described herein are methods for making and using the tissue grafts. The laminin structure of amnion tissue is nearly identical to that of native human tissue such as, for example, oral mucosa tissue. This includes high level of laminin-5, a cell adhesion bio-active factor show to bind gingival epithelia-cells, found throughout upper portions of the basement membrane.Type: ApplicationFiled: April 11, 2013Publication date: August 29, 2013Applicant: MIMEDX GROUP, INC.Inventors: John Daniel, Randall Spencer
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Publication number: 20130218274Abstract: Described herein are shredded tissue grafts composed of one or more placental components. The compositions have numerous medical applications with respect to wound healing and complications associated with wound healing. Methods for making the shredded tissue graft compositions are also described herein.Type: ApplicationFiled: November 28, 2012Publication date: August 22, 2013Applicant: MIMEDX GROUP, INC.Inventor: MIMEDX GROUP, INC.
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Publication number: 20130202676Abstract: Described herein are tissue grafts produced by contacting dehydrated placental tissue grafts with a cross-linking agent. The tissue grafts described herein provide barrier and prevent the migration of a bioactive agent from the wound. Thus, the tissue grafts enhance wound healing while preventing the undesirable migration of a bioactive agent from the wound. Methods for making and using the cross-linked grafts are also described herein.Type: ApplicationFiled: December 18, 2012Publication date: August 8, 2013Applicant: MIMEDX GROUP, INC.Inventor: MIMEDX GROUP, INC.
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Patent number: 8475503Abstract: Methods for forming molded orthopedic implants with at least one mesh substrate having opposing upper and lower primary surfaces. At least a major portion of the mesh substrate lower primary surface is integrally moldably attached to the molded implant body. The methods are carried out so that the mesh substrate has at least one selectively exposed region devoid of molded material that exposes at least a portion of the mesh substrate upper surface to at least a partial thickness of the mesh substrate so as to allow for tissue in-growth in the at least one exposed region of the mesh substrate.Type: GrantFiled: December 23, 2010Date of Patent: July 2, 2013Assignee: MiMedx Group, Inc.Inventors: Guilhem Denoziere, Daniel Tomko, Anish Ghodadra
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Patent number: 8460715Abstract: A method for preparing placenta membrane tissue grafts for medical use, includes obtaining a placenta from a subject, cleaning the placenta, separating the chorion tissue from the amniotic membrane, mounting a selected layer of either the chorion tissue or the amniotic membrane onto a drying fixture, dehydrating the selected layer on the drying fixture, and cutting the selected layer into a plurality of tissue grafts. Preferably, the drying fixture includes grooves or raised edges that define the outer contours of each desired tissue graft, after they are cut, and further includes raised or indented logos that emboss the middle area of the tissue grafts during dehydration and that enables an end user to distinguish the top from the bottom side of the graft. The grafts are comprised of single layers of amnion or chorion, multiple layers of amnion or chorion, or multiple layers of a combination of amnion and chorion.Type: GrantFiled: August 7, 2012Date of Patent: June 11, 2013Assignee: MiMedx Group, Inc.Inventor: John Daniel