摘要:
A method of treating a lesion in a body lumen to enlarge a passageway in the lumen including providing a cutting member (20, 220a, 220b), connecting a tracking member (30, 230) to the cutting member to form an assembly (10), inserting the connected cutting member and tracking member through a first lumen of a catheter (100), withdrawing the catheter from the cutting member and tracking member, inserting the catheter over the tracking member and leaving the cutting member outside the catheter, and expanding a portion of the catheter to move the cutting member into cutting contact with the lesion. A device for treating a lesion in a body lumen including a cutting member having a coupler to connect a tracking member is also provided.
摘要:
The catheter assembly of the present invention comprises a catheter component (10), a needle component (5), where the catheter component is mounted on the needle component in such a manner that permits relative axial movement between the needle component and the catheter component. The system also includes rotatable screw means (4) for controlling the relative axial movement between the catheter component and the needle component.
摘要:
A device for treating a lesion in a body lumen to enlarge a passageway in a body lumen comprising a cutting member (20, 120, 120', 130, 130') having a proximal portion and a distal portion (23, 222, 132) and a tracking member (30, 140) having a proximal portion and a distal portion (142). The cutting member and tracking member are connected at their distal portions and insertable into the body lumen as a unit, the cutting member configured for movement in a direction transverse to a longitudinal axis of the tracking member to widen a gap between the cutting member and tracking member at least at a distal region.
摘要:
A method of treating a lesion in a body lumen to enlarge a passageway in the lumen including providing a cutting member (20, 220a, 220b), connecting a tracking member (30, 230) to the cutting member to form an assembly (10), inserting the connected cutting member and tracking member through a first lumen of a catheter (100), withdrawing the catheter from the cutting member and tracking member, inserting the catheter over the tracking member and leaving the cutting member outside the catheter, and expanding a portion of the catheter to move the cutting member into cutting contact with the lesion. A device for treating a lesion in a body lumen including a cutting member having a coupler to connect a tracking member is also provided.
摘要:
The catheter assembly of the present invention comprises a catheter component (10), a needle component (5), where the catheter component is mounted on the needle component in such a manner that permits relative axial movement between the needle component and the catheter component. The system also includes rotatable screw means (4) for controlling the relative axial movement between the catheter component and the needle component.