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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12030255 B1

PDFFull Text
Date of Patent:
Jul. 09, 2024

Filed:

Dec. 17, 2019

3d printing system for manufacturing artificial blood vessel and method for manufacturing artificial blood vessel using same

Applicant:

T&r Biofab Co., Ltd., Siheung-si, KR;

Inventors:

Geun Seon Ahn, Seongnam-si, KR;

Min Kyung Kim, Seongnam-si, KR;

Kyung Hyun Min, Seongnam-si, KR;

In Gyu Lee, Seongnam-si, KR;

Assignee:

T&R BIOFAB CO., LTD., Siheung-si, KR;

Attorney:

STIP Law Group, LLC

Primary Examiner:

Thaddeus B Cox

Int. Cl.
CPC ...
B29C 64/40 (2017.01); A61F 2/06 (2013.01); B29C 64/106 (2017.01); B29C 64/209 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); A61F 2/00 (2006.01); B29K 101/12 (2006.01); B29K 105/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 64/40 (2017.08); A61F 2/06 (2013.01); B29C 64/106 (2017.08); B29C 64/209 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); A61F 2002/0081 (2013.01); A61F 2240/002 (2013.01); B29K 2101/12 (2013.01); B29K 2105/0061 (2013.01); B29L 2031/7534 (2013.01);
Abstract

The present invention relates to a three-dimensional (3D) printing system for manufacturing an artificial blood vessel and a method for manufacturing an artificial blood vessel using the same, wherein a cylindrical support having a hollow 3D porous structure including a thermoplastic polymer is manufactured and vertically fixed, and a hydrogel divided into at least two sections is discharged into the support, thereby maintaining the structure and shape constantly even after printing and manufacturing an artificial blood vessel having a hollow multilayered structure. The 3D printing system for manufacturing an artificial blood vessel comprises: a rotatable support manufacturing unit which forms a hollow cylindrical support having a 3D porous structure by discharging a polymer to the outer circumference thereof through a first head; a first head which forms a hollow cylindrical support having a 3D porous structure by discharging a polymer to the support manufacturing unit; a support vertically holding the hollow cylindrical support manufactured through the first head; and a second head which discharges a hydrogel, divided into at least two sections, into the cylindrical support vertically held and fixed to the support.

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