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:
Mar. 21, 2000
Filed:
Sep. 05, 1996
Jack Sliwa, Los Altos, CA (US);
Lee A Blumenfeld, San Carlos, CA (US);
OB Inovations, Inc., San Carlos, CA (US);
Abstract
An apparatus for measuring cervical diameter comprises a support structure and measurement devices for detecting changes in cervical diameter, either directly or indirectly through changes in the size of the support structure. The support structure may conform to a cervical surface, typically being a peripherally expansible lumen or expansible structure. Alternatively, the support structure may engage the vaginal wall or fornices. Measurement devices may include gages which determine change in sizes of an expansible loop, electronic devices for measuring changes in transmitted or reflected energy, or combinations thereof. The devices are suitable for use on ambulatory patients and in out-patient situations.