Kimberly So Un

US Patent:

20030153973, Aug 14, 2003

Filed:

Feb 8, 2002

Appl. No.:

10/072567

Inventors:

Naroun Soun - Lawrence MA, US
Kimberly Un - Lexington MA, US
Robert Thistle - Brockton MA, US
Raymond Laliberte - Chepachet RI, US

International Classification:

A61F002/06

US Classification:

623/001160, 623/001300, 623/001530, 087/011000

Abstract:

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface having a reduced diameter section positioned between two sloped sections. Each sloped section extends between the reduced diameter section and one of a plurality of nominal diameter sections. The reduced diameter section has a greater radial strength than the nominal diameter sections. One of the components may have a sealing region, such as a circumferential elevation, for providing an endoleak-resistant seal between the stent and a body lumen. One exemplary method for fabricating a circumferential elevation comprises affixing a plurality of filaments, such as sutures, between overlaps of braided filaments in one region and overlaps in another region.

US Patent:

20090177187, Jul 9, 2009

Filed:

Sep 10, 2008

Appl. No.:

12/207874

Inventors:

Karla Weaver Quigley - Framingham MA, US
Steven Grantz - Pelham NH, US
Richard Pok - Malden MA, US
Anthony Hien - Stoneham MA, US
Kimberly Un - Lawrence MA, US

International Classification:

A61M 25/14
F16K 15/14

US Classification:

604537, 137845, 604247

Abstract:

A pressure actuated valve comprises a first membrane having a slit extending through the membrane at a nonzero draft angle relative to a perpendicular to a surface of the membrane, material of the membrane biasing the slit closed so that the slit remains closed when a fluid pressure applied to the membrane is below a threshold level and, when the fluid pressure is at least the threshold level, edges of the slit separate from one another to permit fluid flow through the membrane.