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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0583819 (1990-09-17) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 473 인용 특허 : 0 |
An elongate steerable implement is disclosed, which may be either a steerable guidewire or catheter for coronary angioplasty applications. A floppy steerable tip on a steering region at the distal end of the implement and a control device at the proximal end are connected by means of a plurality of
An elongate steerable implement is disclosed, which may be either a steerable guidewire or catheter for coronary angioplasty applications. A floppy steerable tip on a steering region at the distal end of the implement and a control device at the proximal end are connected by means of a plurality of axially movable deflection wires extending throughout the implement. Manipulation of the control permits deflection of the steering region throughout a full 360°range of motion about the axis of the implement, without axial rotation or “torquing”thereof. In another embodiment, a steering ribbon is disclosed which permits steering by lateral deflection of the tip into a deflected or bent position and then permits straightening the tip back to its original position.
A steerable guidewire for percutaneous transluminal insertion into the coronary vascular system and controlled negotiation of branches and turns therein to guide an angioplasty catheter to an arterial stenosis or other treatment site, said guidewire comprising: an elongate flexible housing having a
A steerable guidewire for percutaneous transluminal insertion into the coronary vascular system and controlled negotiation of branches and turns therein to guide an angioplasty catheter to an arterial stenosis or other treatment site, said guidewire comprising: an elongate flexible housing having a proximal and a distal end and at least one lumen extending therethrough; a flexible steering ribbon secured within the lumen, and adapted to displace the distal end of the housing in a lateral direction; at least one deflection wire guide disposed on the steering ribbon; at least one deflection wire anchor disposed on the steering ribbon distally of the wire guide; and at least two deflection wires axially movably disposed within the lumen of the flexible housing and extending from a distal point of attachment to the wire anchor throughout the length of the flexible shaft to the proximal end thereof; wherein axial movement of one of said deflection wires in a proximal direction displaces the axis of a portion of the housing in a lateral direction and axial movement of the other of said deflection wires in a proximal direction returns the axis of a portion of the housing to its original, undisplaced position.
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