B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/00 (2006.01) B29C 47/08 (2006.01) B29C 47/54 (2006.01) B29D 23/00 (2006.01)
Patent
CA 2711661
The present invention provides an apparatus and method for manufacturing polymeric thin-walled tubular members, which are well-suited for use as vascular grafts. The apparatus of the present invention enables extrusion of a tubular member having an extremely thin wall thickness so as to facilitate passage through tortuous vascular passageways. The apparatus achieves uniform wall thickness in a tubular member by establishing and maintaining axial alignment of a ram (30) having a concentrically disposed guide rod (26) therein with a die (42) supported in concentric relation to the guide rod.
Brodeur Christopher B.
Girton Timothy S.
Hill Jason P.
Sogard David J.
Venditti James
Boston Scientific Limited
Piasetzki Nenniger Kvas Llp
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