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:
Feb. 27, 2007
Filed:
Jun. 13, 2003
Applicants:
In-kwon Jung, Pyongtaek, KR;
Sung-soon an, Seoul, KR;
Hun-kuk Park, Pyongtaek, KR;
Inventors:
Assignee:
M. I. Tech Co., Ltd., Pyongtack, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 2/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stent includes a cylindrical main body contractible and expandable in a circumferential direction, a cover member coated on inner and/or outer circumference of the main body, and an inverse current preventing member for preventing food or fluid from reversely flowing. The inverse current preventing member is disposed in the main body and includes a fixing layer defining a passage having a diameter capable of allowing food and fluid to pass, the fixing layer being fixed in the main body and a valve layer extending from the fixing layer to a distal end of the main body.