Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Having pores
Reexamination Certificate
2006-02-17
2010-06-01
Bui, Vy Q (Department: 3773)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Having pores
C623S001440, C606S191000
Reexamination Certificate
active
07727274
ABSTRACT:
A vascular prosthesis is constructed from a structure having interconnected, helically oriented channel-porosity to allow oriented ingrowth of connective tissue into a wall of the prosthesis. The prosthesis can have a small internal diameter of 6 mm or less. Several different methods can be used to produce the prosthesis, including a fiber winding and extraction technique, a melt extrusion technique, and a particle and fiber extraction technique using either a layered method or a continuous method. Furthermore, mechanical properties of the prosthesis are matched with mechanical properties of the host vessel, thereby overcoming problems of compliance mismatch.
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Berkowitz et al., “Pseudointimal development on Microporous Polyurethane Lattices”, Amer Soc Artif Int Organs,XVIII:25-29, 1972.
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Hiratzka et al., “In-vivo Comparison of Replamineform, Silastic and Bioeletric Polyurethane Arterial Crafts”, Arch Surg, 114: 698-702, Jun. 1979.
Ives et al., “In-vivo Investigation of a New Eslastomeric Vascular Graft (Mitrathane)”, Trans Am Soc Artif Intern Organs, XXX: 587-590, 1984.
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Lyman et al., “Development of Small Diameter Vascular Prostheses”, Trans Am Soc Artif Intern Organs, XXIII:253-261, 1977.
Murabayashi et al., “F
Bezuidenhout Deon
Zilla Peter
Ackley James H.
Bui Vy Q
Medtronic Inc.
Ruschke David P.
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