Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2002-04-22
2009-12-29
Lucchesi, Nicholas D (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S103060, C604S093010
Reexamination Certificate
active
07637886
ABSTRACT:
A radially expandable device having a body constructed of a generally inelastic, expanded fluoropolymer material is described. The body is deployable upon application of a radial expansion force from a reduced diameter, collapsed configuration to an expanded configuration having a pre-defined and fixed increased diameter. The body has a singular, unitary construction of generally homogenous material that is characterized by a seamless construction of expanded fluoropolymer material, such as expanded polytetrafluoroethylene (ePTFE), and is preferably constructed through an extrusion and expansion process. The body is further characterized by a microstructure of nodes interconnected by fibrils in which substantially all the nodes of the body are oriented generally perpendicularly to the longitudinal axis of the body. The monolithic construction of the body and the orientation of the nodes, perpendicular to the longitudinal axis of the body, yields a radially expandable device that predictably and dependably expands to a predefined, fixed maximum diameter that is generally independent of the expansion force used to radially expand the device. In addition, the microstructure of nodes interconnected by fibrils provides at least one predetermined flow rate of fluid therethrough over a range of fluid pressures.
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Gingras Peter H.
Herweck Steve A.
Karwoski Theodore
Martakos Paul
Atrium Medical Corporation
Bouchelle Laura A
Canning Kevin J.
Lahive & Cockfield LLP
Lucchesi Nicholas D
LandOfFree
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