Stents made of bulk-solidifying amorphous alloys and methods of making such stents are provided.
대표청구항▼
What is claimed is: 1. A stent of a radially compactable generally tubular body comprising a bulk-solidifying amorphous alloy, wherein the alloy is subjected to an elastic strain of at least 1.0% in a compacted form of the stent. 2. The stent described in claim 1, wherein the amorphous alloy has
What is claimed is: 1. A stent of a radially compactable generally tubular body comprising a bulk-solidifying amorphous alloy, wherein the alloy is subjected to an elastic strain of at least 1.0% in a compacted form of the stent. 2. The stent described in claim 1, wherein the amorphous alloy has an elastic strain of at least 1.5%. 3. The stent described in claim 1, wherein the amorphous alloy has an elastic strain of at least 1.5%, and a yield strength of more than 1.4 Gpa. 4. The stent described in claim 1, wherein the amorphous alloy has an elastic strain of at least 1.8%, and a yield strength of more than 1.9 Gpa. 5. The stent described in claim 1, wherein the amorphous alloy is subjected to an elastic strain of at least 1.5% in a compacted form of the stent. 6. The stent described in claim 1, wherein the amorphous alloy is subjected to an elastic strain of at least 1.8% in a compacted form of the stent. 7. The stent described in claim 1, wherein the amorphous alloy is subjected to an elastic strain of less than 0.5% in an expanded form of the stent. 8. The stent described in claim 1, wherein the amorphous alloy has a delta T of greater than 90�� C. 9. The stent described in claim 1, wherein the amorphous alloy is a Zr/Ti base bulk-solidifying amorphous alloy. 10. The stent described in claim 1, wherein the stent has a cross-section selected from the group consisting of hexagonal and round. 11. The stent described in claim 1, wherein the body comprises a plurality of pieces arranged in a conformation selected from the group consisting of coiled spring, helical wound spring coil, zigzag pattern, diamond shaped, and non-mesh designs. 12. The stent described in claim 1, wherein the wall of the body has a plurality of aperture openings. 13. The stent described in claim 1, wherein the body covers between 9 and 20% of a vessel into which the stent is implanted. 14. The stent described in claim 1, wherein the body covers at least 80% of a vessel into which the stent is implanted. 15. The stent described in claim 1, wherein the body comprises at least two tubular segments which overlap or abut to form a single tubular body. 16. The stent described in claim 1, wherein the stent is self-expanding. 17. The stent described in claim 1, wherein the body is branched. 18. The stent described in claim 1, wherein the body has a wall thickness of less than 0.5 mm. 19. The stent described in claim 1, wherein the body has a wall thickness of less than 0.25 mm. 20. The stent described in claim 1, wherein the stent is one of either a stent graft or intraluminal graft. 21. A method of forming a stent, comprising: providing a molten piece of bulk-solidifying amorphous alloy; providing a mold in the shape of a desired stent component; casting the molten amorphous alloy into a plurality of near-to-net shape stent components; assembling a stent from the stent components; and compacting the stent radially to form a compacted stent, wherein the amorphous alloy piece is subjected to an elastic strain of at least 1.0% during compacting. 22. The method as described in claim 21, further comprising finishing an outer surface the stent, wherein the finishing is selected from a process selected from the group consisting of electro-polishing and chemical etching. 23. The method as described in claim 21, further comprising modifying an outer surface of the stent by a treatment selected from the group consisting of chemical treatment, thermal treatment, and a combination thereof. 24. A method of forming a stent, comprising: providing a feedstock a bulk-solidifying amorphous alloy; heating the feedstock to around the glass transition temperature of the amorphous alloy; providing a mold in the shape of a desired stent component; molding the molten amorphous alloy into a plurality of near-to-net shape stent components; assembling a stent from the stent components; and compacting the stent radially to form a compacted stent, wherein the amorphous alloy piece is subjected to an elastic strain of at least 1.0% during compacting. 25. The method as described in claim 24, further comprising finishing an outer surface the stent, wherein the finishing is selected from a process selected from the group consisting of electro-polishing and chemical etching. 26. The method as described in claim 24, further comprising modifying an outer surface of the stent by a treatment selected from the group consisting of chemical treatment, thermal treatment, and a combination thereof. 27. A method of forming a stent comprising: providing a tubular body made of a bulk-solidifying amorphous alloy; processing the tubular body to form a pattern of surface features therein, wherein the surface features extend at least partially through the wall of the body; and compacting the stent radially to form a compacted stent, wherein the amorphous alloy is subjected to an elastic strain of at least 1.0% during compacting. 28. The method as described in claim 27, wherein the processing includes a manufacturing method selected from the group consisting of electrostatic discharge machining (EDM), chemical milling, ablation and laser cutting. 29. The method as described in claim 27, further comprising finishing an outer surface the stent, wherein the finishing is selected from a process selected from the group consisting of electro-polishing and chemical etching. 30. The method as described in claim 27, further comprising modifying an outer surface of the stent by a treatment selected from the group consisting of chemical treatment, thermal treatment, and a combination thereof.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (45)
Masumoto Tsuyoshi (Sendai JPX) Esashi Kiyoyuki (Higashiosaka JPX) Nose Masateru (Itami JPX), Amorphous alloys containing iron group elements and zirconium and articles made of said alloys.
Tanner Lee Elliot (Summit NJ) Ray Ranjan (Morristown NJ) Cline Carl F. (Walnut Creek CA), Amorphous metal alloys in the beryllium-titanium-zirconium system.
Peker Atakan (Pasadena CA) Johnson William L. (Pasadena CA) Schafer Robert (Worthington OH) Scruggs David M. (Oceanside CA), Amorphous metal/reinforcement composite material.
Abkowitz Stanley (Lexington MA) Rowell David M. (Billerica MA) Heussi Harold L. (Essex MA) Ludwig Harold P. (Woburn MA) Kraus Stephen A. (Clinton MA), Impact resistant clad composite armor and method for forming such armor.
Scruggs David M. (Oceanside CA) Johnson William L. (Pasadena CA) Bolton Jimmie B. (Conroe TX) Peker Atakan (Pasadena CA), Joining of metals using a bulk amorphous intermediate layer.
Taniguchi Takeshi,JPX ; Nagahora Junichi,JPX, Method and apparatus for production of amorphous alloy article formed by metal mold casting under pressure.
Christ Alfred (Zurich CHX) Lehmann Rolf (Rudolfstetten CHX) Schlaepfer Hans-Wlater (Rickenbach CHX), Method of, and apparatus for, the continuous casting of rapidly solidifying material.
Masahide Onuki JP; Jun Nishibayashi JP; Tetsuo Yamaguchi JP; Haruyoshi Minamiguchi JP; Akihisa Inoue JP, Molded product of amorphous metal and manufacturing method for the same.
Onuki Masahide,JPX ; Nishibayashi Jun,JPX ; Yamaguchi Tetsuo,JPX ; Minamiguchi Haruyoshi,JPX ; Inoue Akihisa,JPX, Molded product of amorphous metal and manufacturing method for the same.
Hofmann, Douglas C.; Kennett, Andrew, Systems and methods for fabricating structures including metallic glass-based materials using low pressure casting.
Hofmann, Douglas C.; Roberts, Scott N., Systems and methods for fabricating structures including metallic glass-based materials using ultrasonic welding.
Parness, Aaron; Carpenter, Kalind C.; Hofmann, Douglas C., Systems and methods for implementing flexible members including integrated tools made from metallic glass-based materials.
Hofmann, Douglas C.; Wilcox, Brian H., Systems and methods for implementing tailored metallic glass-based strain wave gears and strain wave gear components.
Hofmann, Douglas C.; Bradford, Samuel C., Systems and methods for structurally interrelating components using inserts made from metallic glass-based materials.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.