Apparatus and method for extrusion of thin-walled tubes

Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting

Reexamination Certificate

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C264S040300, C264S040700, C264S149000

Reexamination Certificate

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07425291

ABSTRACT:
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 having a concentrically disposed guide rod therein with a die supported in concentric relation to the guide rod.

REFERENCES:
patent: 2566293 (1951-08-01), Robinson
patent: 3260774 (1966-07-01), Harlow
patent: 3953566 (1976-04-01), Gore
patent: 4126661 (1978-11-01), Fulconis et al.
patent: 4208745 (1980-06-01), Okita
patent: 4225547 (1980-09-01), Okita
patent: 4250138 (1981-02-01), Okita
patent: 4482516 (1984-11-01), Bowman et al.
patent: 4547142 (1985-10-01), Arenhövel et al.
patent: 4655771 (1987-04-01), Wallsten
patent: 4743480 (1988-05-01), Campbell et al.
patent: 4791966 (1988-12-01), Eilentropp
patent: 4806086 (1989-02-01), Bloch et al.
patent: 4828770 (1989-05-01), Fabian et al.
patent: 4850999 (1989-07-01), Planck
patent: 4861256 (1989-08-01), Covey
patent: 4911846 (1990-03-01), Akasu et al.
patent: 4925710 (1990-05-01), Buck et al.
patent: 4954126 (1990-09-01), Wallsten
patent: 4971836 (1990-11-01), Fukasawa et al.
patent: 5024671 (1991-06-01), Tu et al.
patent: 5061275 (1991-10-01), Wallsten et al.
patent: 5064435 (1991-11-01), Porter
patent: 5071407 (1991-12-01), Termin et al.
patent: 5112900 (1992-05-01), Buddenhagen et al.
patent: 5123917 (1992-06-01), Lee
patent: 5147385 (1992-09-01), Beck et al.
patent: 5156785 (1992-10-01), Zdrahala
patent: 5197976 (1993-03-01), Karwoski et al.
patent: 5221261 (1993-06-01), Termin et al.
patent: 5234456 (1993-08-01), Silvestrini
patent: 5282823 (1994-02-01), Schwartz et al.
patent: 5282824 (1994-02-01), Gianturco
patent: 5378239 (1995-01-01), Termin et al.
patent: 5505887 (1996-04-01), Zdrahala et al.
patent: 5591226 (1997-01-01), Trerotola et al.
patent: 5607468 (1997-03-01), Rogers et al.
patent: 5607478 (1997-03-01), Lentz et al.
patent: 5609624 (1997-03-01), Kalis
patent: 5614136 (1997-03-01), Pepin et al.
patent: 5620763 (1997-04-01), House et al.
patent: 5628782 (1997-05-01), Myers et al.
patent: 5628786 (1997-05-01), Banas et al.
patent: 5628788 (1997-05-01), Pinchuk
patent: 5639408 (1997-06-01), King et al.
patent: 5641443 (1997-06-01), Calcote et al.
patent: 5645559 (1997-07-01), Hachtman et al.
patent: 5653745 (1997-08-01), Trescony et al.
patent: 5667523 (1997-09-01), Bynon et al.
patent: 5700285 (1997-12-01), Myers et al.
patent: 5718973 (1998-02-01), Lewis et al.
patent: 5735892 (1998-04-01), Myers et al.
patent: 5749880 (1998-05-01), Banas et al.
patent: 5788626 (1998-08-01), Thompson
patent: 5800522 (1998-09-01), Campbell et al.
patent: 5810870 (1998-09-01), Myers et al.
patent: 5843166 (1998-12-01), Lentz et al.
patent: 5874032 (1999-02-01), Zdrahala et al.
patent: 5955016 (1999-09-01), Goldfarb
patent: 5965074 (1999-10-01), Aubertin et al.
patent: 5993489 (1999-11-01), Lewis et al.
patent: 6000927 (1999-12-01), Glowacki et al.
patent: 6001125 (1999-12-01), Golds et al.
patent: 6004310 (1999-12-01), Bardsley et al.
patent: 6027779 (2000-02-01), Campbell et al.
patent: 6048484 (2000-04-01), House et al.
patent: 6050805 (2000-04-01), Lupke
patent: 6187054 (2001-02-01), Creer et al.
patent: 6224803 (2001-05-01), Tiernan
patent: 6537471 (2003-03-01), Swanson et al.
patent: 6814561 (2004-11-01), Venditti et al.
patent: 2003/0082324 (2003-05-01), Sogard et al.
patent: 39 18 736 (1990-12-01), None
patent: 0 351 584 (1990-01-01), None
patent: 0 551 179 (1993-07-01), None
patent: 0 621 015 (1994-10-01), None
patent: 1 505 591 (1978-03-01), None
patent: WO 87/04935 (1987-08-01), None
patent: WO 95/05131 (1995-02-01), None
patent: WO 95/05132 (1995-02-01), None
patent: WO 95/05555 (1995-02-01), None
patent: WO 96/00103 (1996-01-01), None
patent: WO 96/28115 (1996-09-01), None
patent: WO 96/40001 (1996-12-01), None
patent: WO 97/02791 (1997-01-01), None
patent: WO 97/07751 (1997-03-01), None
patent: WO 98/38947 (1998-09-01), None
patent: WO 01/15633 (2001-03-01), None
patent: WO 02/41804 (2002-05-01), None
Search Report issued on Dec. 18, 2002 for International Application No. PCT/US02/27437.

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