Endoprosthesis for controlled contraction and expansion
US7637935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2003 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | May 6, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoprosthesis that has an interconnected series of struts, selected strut members connected to adjacent strut members at a longitudinal apex. Strut members include a first end portion, an intermediate portion hingedly connected to the first end portion, and a second end portion hingedly connected to the intermediate portion and extending to the apex. Some of the strut members can have a nesting feature configured for nestingly receiving another strut member when the endoprosthesis is in the delivery condition. A scaffolding body of the endoprosthesis can have an inner and outer component, each having a set of interconnected strut members which overlap those of the other to define a cooperating cell pattern. Also, the endoprosthesis can be configured to naturally tend to contract when the body is smaller than a predetermined diameter and expand when the body is larger than a predetermined diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.