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:
Aug. 05, 2014
Filed:
Mar. 11, 2010
Michael J. Hallisey, Wethersfield, CT (US);
Jeremy W. Snow, South Jordan, UT (US);
Michael J. Hallisey, Wethersfield, CT (US);
Jeremy W. Snow, South Jordan, UT (US);
Merit Medical Systems, Inc., South Jordan, UT (US);
Abstract
Retrievable vena cava filters for the temporary or permanent prevention of Pulmonary embolism (PE) are disclosed. A filter in accordance with the present invention has a tube-within-tube structure with overlapping semi-spheres. The semi-spheres comprise a plurality of expandable legs. The first tube may have a plurality of slots allowing for deployment of a first or second sets of expandable legs on the second tube. The free end of each leg in the first set of expandable legs may be oriented in a direction the same as or opposite to the free end of each leg in the second set. The filter may also be formed from a single tube. In certain embodiments, the filter of the present invention can be retrieved from either end.