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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0052410 (1993-04-23) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 565 인용 특허 : 0 |
An intravascular stent comprising a cylindrical sheet having overlapplng edges that interlock. The edges have a series of protrusions and apertures that interlock and ratchet as the stent expands to an open position to support a section of arterial wall. The stent may be expanded by a balloon cathet
An intravascular stent comprising a cylindrical sheet having overlapplng edges that interlock. The edges have a series of protrusions and apertures that interlock and ratchet as the stent expands to an open position to support a section of arterial wall. The stent may be expanded by a balloon catheter or it may be self-expanding. The stent is biocompatible, may be bio-erodible, and capable of localized drug delivery. A plurality of retaining members to keep the stent open are disclosed. In one embodiment a buckle fastening member is used, while in another embodiment a helical seam containing projections is employed. The stent may be wound in such a manner that during expansion of the stent one side of the sheet comprising the stent desires to return to its original shape, creating a bias. In addition, a variety of reticulated structure stents are disclosed, with novel geometric patterns that aid in increased flexibility while preserving radial strength and also allow blood-tissue interaction and side branch access. The intravascular stent may be made of a sheet of material strengthened and stiffened by pyrolytic carbon or by structural reinforcement as in composite laminates.
An intraluminal stent implantable in a body lumen, comprising: a cylindrical body portion having an axial length extending along a longitudinal direction, said cylindrical body portion formed of a sheet having a first longitudinal edge and a second longitudinal edge, an elongated slot in said sheet
An intraluminal stent implantable in a body lumen, comprising: a cylindrical body portion having an axial length extending along a longitudinal direction, said cylindrical body portion formed of a sheet having a first longitudinal edge and a second longitudinal edge, an elongated slot in said sheet on said first longitudinal edge, said elongated slot receiving said second longitudinal edge allowing said cylindrical body portion to be selectively expanded in the body lumen.
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