Self-assembling cell aggregates and methods of making engineered tissue using the same

US9752116B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9752116-B2
Application numberUS-201615235422-A
CountryUS
Kind codeB2
Filing dateAug 12, 2016
Priority dateFeb 24, 2004
Publication dateSep 5, 2017
Grant dateSep 5, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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Abstract

Official abstract text for this publication.

A composition comprising a plurality of cell aggregates for use in the production of engineered organotypic tissue by organ printing. A method of making a plurality of cell aggregates comprises centrifuging a cell suspension to form a pellet, extruding the pellet through an orifice, and cutting the extruded pellet into pieces. Apparatus for making cell aggregates comprises an extrusion system and a cutting system. In a method of organ printing, a plurality of cell aggregates are embedded in a polymeric or gel matrix and allowed to fuse to form a desired three-dimensional tissue structure. An intermediate product comprises at least one layer of matrix and a plurality of cell aggregates embedded therein in a predetermined pattern. Modeling methods predict the structural evolution of fusing cell aggregates for combinations of cell type, matrix, and embedding patterns to enable selection of organ printing processes parameters for use in producing an engineered tissue having a desired three-dimensional structure.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of producing a tissue construct, comprising depositing cell aggregates from a dispensing device, and allowing the cell aggregates to fuse. 2. The method of claim 1 , wherein the cell aggregates are dispensed in a pattern. 3. The method of claim 1 , wherein the cell aggregates are homocellular. 4. The method of claim 1 , wherein the cell aggregates are heterocellular. 5. The method of claim 1 , wherein the dispensing device is instructed by a control unit.

Assignees

Inventors

Classifications

  • Products made by additive manufacturing · CPC title

  • for controlling or regulating additive manufacturing processes · CPC title

  • C12N5/0062Primary

    General methods for three-dimensional culture · CPC title

  • Artificial constructs associating cells of different lineages, e.g. tissue equivalents (blood vessels C12N5/0691) · CPC title

  • Processes of additive manufacturing · CPC title

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What does patent US9752116B2 cover?
A composition comprising a plurality of cell aggregates for use in the production of engineered organotypic tissue by organ printing. A method of making a plurality of cell aggregates comprises centrifuging a cell suspension to form a pellet, extruding the pellet through an orifice, and cutting the extruded pellet into pieces. Apparatus for making cell aggregates comprises an extrusion system a…
Who is the assignee on this patent?
Univ Missouri, Musc Found For Res Dev
What technology area does this patent fall under?
Primary CPC classification C12N5/0062. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Sep 05 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 11 related publications on this page (citations in our corpus or others sharing the same primary CPC).