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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0214402 (1994-03-17) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 743 인용 특허 : 0 |
The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one
The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. The stents are made by coating a length of tubing with an etchant-resistive material and then selectively removing portions of the coating to form a pattern for the stent on the tubing and to expose the portions of the tubing to be removed. This may done by machine-controlled activation and relative positioning of a laser in conjunction with the coated tubing. After the patterning of the tubing, the stent is formed by removing exposed portions of the tubing by an etching process.
The process of making a stent which includes the steps of: a) applying a coating resistive to chemical etching to a length of tubing; b) selectively removing portions of the resistive coating to expose sections of the tubing; and c) removing exposed portions of the tubing.
The process of making a stent which includes the steps of: a) applying a coating resistive to chemical etching to a length of tubing; b) selectively removing portions of the resistive coating to expose sections of the tubing; and c) removing exposed portions of the tubing.
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