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. 10, 2000
Filed:
Dec. 18, 1998
Applicant:
Inventors:
Shalom Bar-Ami, Brookline, MA (US);
Amnon Weichselbaum, Haifa, IL;
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B / ;
U.S. Cl.
CPC ...
209235 ; 209 17 ; 209248 ; 209250 ; 209255 ; 209259 ;
Abstract
The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a nucleopore membrane that is contained within a membrane assembly, wherein the membrane assembly is disposed in a container. In operation, a medium is placed in the container so the membrane contacts the medium. A sperm sample is placed one side of the membrane assembly, and the motile sperm migrate through the membrane leaving the non-motile sperm behind, where they can be easily extracted.