IP Library Granted Patent US 9,877,822
Granted Patent B2
US 9,877,822 · App. 13/869,949 · Granted Jan 30, 2018

Engineered tissue scaffolds and supports therefor

Inventor: Thomas Grosse (Holliston, MA)
Assignee: Biostage, Inc.
A61F2/02A61F2/04C12M21/08C12M25/14C12N5/0068A61F2/20A61F2002/043A61F2002/046A61F2240/004F04C2270/041
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Quick Facts
Patent No.
US 9,877,822
App. No.
13/869,949
Granted
Jan 30, 2018
Kind
B2
Abstract

According to some aspects, supports are provided for producing artificial tissue scaffolds.

Claims (17)

1. A method of producing an artificial tissue scaffold, the method comprising;

obtaining a support for an artificial tissue scaffold, the support including:

a first solid tubular region having a substantially flat perimeter region;

a second solid tubular region, connected to the first solid tubular region, wherein the second region has a transverse cross-section with radial symmetry; and

an intermediate region located between the first solid tubular region and the second solid tubular region;

wherein the first region has a different cross-section than the second region, and wherein a transverse cross-section of the first region has a convex curvilinear outer perimeter region interrupted by the substantially flat perimeter region, such that the first region has bilateral symmetry but not radial symmetry, and wherein an axis of bilateral symmetry passes perpendicularly through a midpoint of the substantially flat perimeter region;

wherein the intermediate region has a cross-sectional size that is between the first region and the second region; and

wherein the support is made partially or entirely of conductive metal; and

depositing a synthetic or natural material on the obtained support, wherein the synthetic or natural material forms a scaffold having an inner size and shape corresponding to an outer surface of the support;

wherein the synthetic or natural material is deposited on the support by electrospinning; and

removing the support from the formed scaffold.

2. The method of claim 1 further comprises:

seeding cells on the removed scaffold; and

maintaining the cells on the scaffold under construction suitable for partially or completely cellularizing the scaffold.

3. The method of claim 1 wherein the scaffold obtained in the depositing step comprises:

one or more structural ribs; and optionally wherein the scaffold comprises a plurality of ribs and wherein the plurality of ribs are spaced along a length of the support and further optionally wherein each rib is positioned on the support such that ends of each rib are positioned between a maximum outer dimension of the convex curvilinear outer perimeter region and the substantially flat perimeter region.

4. The method of claim 1 wherein the support further comprises a rotating pin projecting from either the first or second region of the cmbcr support, the rotating pin having a diameter less than an outer perimeter of the support from which the rotating pin projects.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 5, 2026
From: HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC.
To: HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC.
Reel/Frame 074566/0014 →
CHANGE OF NAME Recorded Jul 31, 2023
From: BIOSTAGE, INC.
To: HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC
Reel/Frame 064445/0068 →
CHANGE OF NAME Recorded Aug 3, 2016
From: HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC.; BIOSTAGE, INC.
To: BIOSTAGE, INC.
Reel/Frame 039551/0445 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2015
From: HARVARD BIOSCIENCE, INC.
To: HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC.
Reel/Frame 035047/0264 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 2, 2014
From: HARVARD BIOSCIENCE, INC.
To: HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC.
Reel/Frame 033228/0475 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2014
From: HUGO SACHS ELEKTRONIK - HARVARD APPARATUS GMBH
To: HARVARD BIOSCIENCE, INC.
Reel/Frame 032528/0501 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2014
From: GROSSE, THOMAS
To: HUGO SACHS ELEKTRONIK - HARVARD APPARATUS GMBH
Reel/Frame 032509/0460 →
Continuity (3)
Provisional Application 61637822 · Apr 24, 2012
Provisional Application 61639846 · Apr 27, 2012
Related Publication 20140107803A1 · Apr 17, 2014