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. 24, 1989
Filed:
Jun. 21, 1988
Applicant:
Inventors:
Robert J Hariri, New York, NY (US);
Jamshid B Ghajar, New York, NY (US);
Fathali Ghahremani-Ghadjar, New York, NY (US);
Assignee:
Neurodynamics, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128352 ;
Abstract
A device is disclosed comprising a stretchable cylindrical net-like structure and at least one guide ring for partial placement over a fetus. The cylindrical net-like structure is formed such that as force is applied along its longitudinal axis, the length of the cylindrical structure is increased while the diameter of such cylindrical structure is decreased. The guide ring is expandable for passage therethrough of the fetal head and has an at rest diameter between that of the fetal neck and the fetal head.