Abstract: Described herein are fenestrated placental tissue allografts, methods for using the same for treating wounds that produce an exudate and to promote the healing process, and apparatus and kits for making the same that minimize or eliminate cross-contamination with placental tissue from other placental donors.
Abstract: 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.
Abstract: 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:
Grant
Filed:
April 25, 2014
Date of Patent:
March 1, 2016
Assignee:
MiMedx Group, Inc.
Inventors:
John Daniel, Randall Spencer, John Russo, Robert Tofe
Abstract: 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:
Application
Filed:
November 4, 2015
Publication date:
February 25, 2016
Applicant:
MiMedx Group, Inc.
Inventors:
John Daniel, Randall Spencer, Steven Ray
Abstract: 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.
Abstract: 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.
Abstract: 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:
Application
Filed:
October 21, 2015
Publication date:
February 11, 2016
Applicant:
MIMEDX GROUP, INC.
Inventors:
John DANIEL, Randall SPENCER, John RUSSO, Robert TOFE
Abstract: 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.
Abstract: 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:
Application
Filed:
July 20, 2015
Publication date:
February 4, 2016
Applicant:
MIMEDX GROUP, INC.
Inventors:
John Daniel, Randall Spencer, John Russo, Robert Tofe
Abstract: Medical constructs that have a plurality of NDGA-treated collagen fibers twisted together to provide strands that are twisted together into implantable cords. The cords are suitable to treat orthopaedic and other conditions and can be degradeable over time. Related and methods of twisting the collagen fibers as groups or bundles of fibers to form the medical constructs are described.
Abstract: 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:
Grant
Filed:
November 30, 2012
Date of Patent:
November 17, 2015
Assignee:
MiMedx Group, Inc.
Inventors:
John Daniel, Randall Spencer, Steven Ray
Abstract: Described herein are compositions and methods of using modified placental tissue to achieve endogenous and exogenous therapeutic effects. When applied to an injured or diseased organ or body part, the modified placental tissue elicit stem cell recruitment and/or localization directly to or proximate to the site of application. Also described is a novel vacuum drying device and the use thereof.
Type:
Grant
Filed:
October 9, 2013
Date of Patent:
November 10, 2015
Assignee:
MiMedx Group, Inc.
Inventors:
Rebeccah J. C. Brown, Thomas J. Koob, Guilhem Denozière
Abstract: Described herein are compositions and methods of treating a cardiac condition using modified placental tissue or an extract of a placental tissue, capable of recruiting stem cells or promoting healing in vivo and in vitro.
Type:
Application
Filed:
April 3, 2014
Publication date:
October 8, 2015
Applicant:
MiMedx Group, Inc.
Inventors:
Thomas J. Koob, Hubbard Franklin Burrows
Abstract: The disclosure describes methods of making collagen based biocomposite constructs and related devices. The methods include: (a) winding at least one collagen fiber a number of revolutions about a length of a support member having a long axis, the winding having at least one defined pitch and/or fiber angle relative to the long axis of the support member to form an elongate construct; and (b) applying a fluid polymeric material, such as, for example, an acrylate emulsion and/or other thermoplastic material, onto the collagen fiber during the winding step. Optionally, the fluid polymeric material can include antibiotics and/or other therapeutic agents for additional function/utility.
Type:
Grant
Filed:
December 28, 2012
Date of Patent:
September 8, 2015
Assignee:
MiMedx Group, Inc.
Inventors:
Kerriann Greenhalgh, Mengyan Li, Thomas J. Koob
Abstract: 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:
Grant
Filed:
July 3, 2014
Date of Patent:
July 21, 2015
Assignee:
MiMedx Group, Inc.
Inventors:
John Daniel, Randall Spencer, John Russo, Robert Tofe
Abstract: 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.
Abstract: Medical delivery devices include a needle and a flexible compressible impermeable tube attached to the needle. The compressible tube has an open interior channel. The device is adapted to releasably hold a length of a medical implant in the open interior channel of the tube. The medical implant can be slidably inserted into the interior channel of the tube and is loosely held by the tube.
Type:
Grant
Filed:
May 11, 2011
Date of Patent:
April 14, 2015
Assignee:
MiMedx Group, Inc.
Inventors:
Mei Niu, Daniel Hernandez, Thomas J. Koob