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.:
Date of Patent:
Oct. 16, 2001
Filed:
Jun. 23, 1999
Terumo Kabushiki Kaisha, Tokyo, JP;
Abstract
A matrix for supporting cells such as animal cells is provided that enables cells to be supported at high efficiency and density in a short period. The matrix contains a plurality of cone shaped pores having an average diameter opening in an upstream surface of the matrix of from 500 to 1500 &mgr;m. The diameter decreases from the upstream surface to a downstream surface, and the average diameter of the cone shaped pores in the whole matrix is from 100 to 1000 &mgr;m. The matrix also contains a plurality of communicating pores that communicate with the cone shaped pores and with each other. These pores have an average diameter of from 5 to 100 &mgr;m, and the diameter decreases from a pore opening positioned near one surface of the matrix or near an interior surface of the cone shaped pores to a pore opening positioned remote from the surfaces. The matrix may also contain a plurality of column shaped pores having an average diameter of 100 to 1000 &mgr;m. A porous skin layer having an average pore size smaller than the average pore size of the communicating pores may be on the downstream surface, and the matrix may be made of polyurethane.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile