Invention Grant
- Patent Title: Endovascular device with membrane
- Patent Title (中): 带膜的血管内装置
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Application No.: US11786023Application Date: 2007-04-09
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Publication No.: US08715340B2Publication Date: 2014-05-06
- Inventor: Leon Rudakov , Tsui Ying Rachel Hong , Michael O'Connor
- Applicant: Leon Rudakov , Tsui Ying Rachel Hong , Michael O'Connor
- Applicant Address: SG Singapore
- Assignee: Merlin MD Pte Ltd.
- Current Assignee: Merlin MD Pte Ltd.
- Current Assignee Address: SG Singapore
- Agency: McDermott Will & Emery LLP
- Agent James W. Hill
- Priority: SGSG200401735-6 20040331; SGSG200508026-2 20051213
- Main IPC: A61F2/06
- IPC: A61F2/06

Abstract:
Embodiments of a uniformly porous membrane covering an endoprosthetic device, for example, a stent used to treat an aneurysm, are described. Some embodiments have a pore size and spacing that provides a material ratio of between 70-80% in the deployed state. Material ratio is the proportion of the total porous segment of the membrane that corresponds to membrane material, the remainder being pores. In some embodiments, pore size ranges from about 10-100 μm. In some embodiments, pores are equidistantly spaced with pore spacing in a range of about 40-100 μm. The combination of pore size and spacing are effective to provide a membrane that substantially prevents flow to the aneurysm, while maintaining flow to perforator vessels. In some embodiments the membrane includes permanently attached agents that promote attachment of endothelial cells or progenitors and healing of the aneurysm, or reduce immune responses detrimental to the healing process.
Public/Granted literature
- US20070255388A1 Endovascular device with membrane Public/Granted day:2007-11-01
Information query
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