Ear implants for auricular tissue reconstruction in a patient are provided. The ear implant may be a tissue scaffold multicomponent assembly for reconstruction of auricular tissue. Thus, the assembly may include both a first and a second tissue scaffold component. Each comprises a biocompatible polymeric material having a plurality of open pores configured to support cell growth. The first tissue scaffold component defines a central void region and at least a portion of an outer ear framework of the patient after implantation. The second tissue scaffold component defines a base portion. After implantation into the patient, the second tissue scaffold component seats within the central void region of the first tissue scaffold component, so that the second tissue scaffold component is secured to the first tissue scaffold component. Methods for reconstructing auricular tissue in a patient using such ear implant tissue scaffolds are also provided.

Embodiments of the technology may involve a method of processing the human donor tissue for administration to a recipient. This method may include the step of contacting the human donor tissue with a backing layer, where the human donor tissue and the backing layer contain a saline solution. This saline solution may include a solvent and a disassociated salt. The method may further include evaporating a portion of the solvent from a surface of the backing layer. The evaporation of the solvent may move a portion of the disassociated salt from the donor tissue to the backing layer. This process may then result in a tissue that is mostly dry and free of salt crystals.

Systems, instruments, methods, and compositions are described involving removing a portion of the epidermis within a donor site on a subject, and harvesting dermal plugs within the donor site. An injectable filler is formed by mincing the dermal plugs. The injectable filler is configured for injecting into a recipient site on the subject.

Allografts for soft tissue repair, including breast reconstruction and other plastic surgery procedures, are disclosed. One allograft is made from decellularized dermal tissue and constitutes a collagen matrix having substantially uniform density and porosity. Another allograft is a hybrid bilayer tissue form that is made from decellularized dermal and adipose tissues. Methods for making both allografts are also disclosed.

A method of preventing or reducing the occurrence and/or development of a hernia within a subject at risk of developing a hernia includes implanting a graft material in contact with an opening in an abdominal wall. The graft material promotes healing of the abdominal wall and includes placental or placental derived tissue.

The method for producing a three-dimensional artificial tissue is a method in which a three-dimensional artificial tissue extending in a predetermined direction is produced. The method includes: preparing a device including a culture tank having a culturing space surrounded by sidewalls, and a flow channel-forming member that penetrates through the sidewalls that face each other and is suspended in the culturing space along a predetermined direction; culturing cells in the culturing space and thereby forming a three-dimensional artificial tissue through which the flow channel-forming member penetrates; and removing the flow channel-forming member from the three-dimensional artificial tissue and thereby forming a perfusion flow channel that penetrates through the three-dimensional artificial tissue.

Flowable matrix compositions and methods of their use and manufacture are provided. Exemplary compositions may include a flowable, syringeable, putty-like form of acellular human dermal matrix. In some cases, compositions may include a moldable acellular collagen extracellular matrix. In use, the matrix compositions can be used to fill or treat skin voids, channel wounds, and other soft tissue deficiencies.

The present disclosure provides devices and methods for treating a tissue site. The device and methods can be used to treat tissue that has been irradiated and can include a tissue matrix having the ability to support tissue regeneration and vascularization with cells from the tissue site.

In alternative embodiments, provided are compositions, e.g., pharmaceutical compositions, formulations, kits and other products of manufacture, comprising a hydrogel and active ingredients, including mixed thickness skin micrografts, or full or split-thickness skin grafts, contained or mixed in or within the hydrogel; and methods for making and using them. In alternative embodiments, compositions and methods as provided herein are used for the treatment or amelioration of wounds and surgical sites, and include compositions and methods for micrografting, or for micrografting a wound, or for micrografting a wound for rapid re-epithelialization, or for micrografting a wound for rapid re-epithelialization of large non-healing wounds.

The present disclosure relates to tissue matrix products. The products can includes tissue matrices that have holes or perforations located at certain positions to improve certain in vivo functions without substantial loss of strength or other important properties.