公开(公告)号：US20190183626A1

公开(公告)日：2019-06-20

申请号：US16283463

申请日：2019-02-22

Applicant: Vertera Inc.

Inventor： Wei-Hsang Chang ,  Stephen Lee Laffoon ,  Christopher S.D. Lee ,  David Lee Safranski

IPC: A61F2/00 ,  A61L27/50 ,  C08J9/26 ,  A61L27/18 ,  A61B6/00 ,  A61B90/00 ,  B29C44/34 ,  B29C44/04 ,  A61L27/56 ,  C08J9/00 ,  A61F2/44 ,  A61B6/12 ,  B29C67/20 ,  A61L31/06

Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.

公开(公告)号：US10231813B2

公开(公告)日：2019-03-19

申请号：US15854748

申请日：2017-12-26

Applicant: Vertera Inc.

Inventor： Wei-Hsang Chang ,  Stephen Lee Laffoon ,  Christopher S. D. Lee ,  David Lee Safranski

IPC: A61F2/28 ,  A61F2/00 ,  A61L31/06 ,  B29C67/20 ,  C08J9/00 ,  C08J9/26 ,  A61L27/18 ,  A61B90/00 ,  A61B6/00 ,  A61F2/44 ,  A61L27/50 ,  A61L27/56 ,  B29C44/04 ,  B29C44/34 ,  A61B6/12 ,  B29K71/00 ,  B29L31/00

Abstract: A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.