Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent structure
Patent
1997-09-29
2000-03-28
Snow, Bruce E.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Stent structure
606194, A61F 206
Patent
active
060426063
ABSTRACT:
A radially expandable and contractible surgical stent 10 is provided formed from a shape memory material such as a Nickel-Titanium alloy. The stent 10 includes a series of wave-like struts 20 spaced apart by gaps 60. Each gap 60 is spanned by tie bars 70 at a maximum 64 width portion of the gap 60 or by an angled link 80 or a straight link 90 at a minimum 62 width portion of a gap 60. Hence, axial expansion or contraction of the stent 10 is avoided when the stent 10 is radially expanded or contracted. Each strut 20 is formed from a series of substantially linear legs 30 joined together by free bends 40 or attachment bends 50. The legs 30 and bends 40, 50 can be provided with an enhanced thickness 36 to augment resistance of the stent 10 to fracture when radially expanded or contracted. The stent 10 can be radially contracted to a diameter less than one-fourth of its radially expanded configuration when in a martensite phase. The stent 10 returns to a shape memory austenite phase when the stent 10 is unloaded or loaded below its yield strength and has a temperature above its transition temperature. The stent 10 can thus be easily collapsed and implanted within a body lumen for later radial expansion to support the body lumen.
REFERENCES:
patent: D380266 (1997-06-01), Boatman et al.
patent: D380831 (1997-07-01), Kavteladze et al.
patent: 5104404 (1992-04-01), Wolff
patent: 5133732 (1992-07-01), Wiktor
patent: 5139480 (1992-08-01), Hickle et al.
patent: 5195984 (1993-03-01), Schatz
patent: 5242399 (1993-09-01), Lau et al.
patent: 5314444 (1994-05-01), Gianturco
patent: 5421955 (1995-06-01), Lau et al.
patent: 5425739 (1995-06-01), Jessen
patent: 5441515 (1995-08-01), Khosravi et al.
patent: 5443477 (1995-08-01), Marin et al.
patent: 5494029 (1996-02-01), Lane et al.
patent: 5496277 (1996-03-01), Termin et al.
patent: 5507767 (1996-04-01), Maeda et al.
patent: 5507771 (1996-04-01), Gianturco
patent: 5514154 (1996-05-01), Lau et al.
patent: 5522882 (1996-06-01), Gaterud et al.
patent: 5531741 (1996-07-01), Barbacci
patent: 5545210 (1996-08-01), Hess et al.
patent: 5549662 (1996-08-01), Fordenbacher
patent: 5562641 (1996-10-01), Flomenblit et al.
patent: 5569295 (1996-10-01), Lam
patent: 5591195 (1997-01-01), Taheri et al.
patent: 5591197 (1997-01-01), Orth et al.
patent: 5603721 (1997-02-01), Lau et al.
patent: 5632760 (1997-05-01), Sheiban et al.
patent: 5636641 (1997-06-01), Fariabi
patent: 5697971 (1997-12-01), Fischell et al.
patent: 5741327 (1998-04-01), Frantzen
patent: 5746691 (1998-05-01), Frantzen
patent: 5843175 (1998-12-01), Frantzen
patent: 5853419 (1998-12-01), Imram
patent: 5868782 (1999-02-01), Frantzen
Cook Incorporated
Godlewski Richard J.
Snow Bruce E.
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