Stent delivery device
First Claim
1. A system for delivering an endoluminal prosthesis within a body lumen of a patient, comprising:
- a handle member;
a control member slidably coupled to the handle member;
an outer tubular member extending distally from the control member;
an elongate inner member slidably disposed within the outer tubular member and axially fixed with respect to the handle member;
a shaft rotatably mounted to the handle member, the shaft including a gear coupled to the control member such that rotation of the shaft displaces the outer tubular member axially with respect to the elongate inner member; and
a uni-directional mechanism that limits rotation of the shaft to only one direction, such that when the shaft is rotated in the one direction, the outer tubular member is directed from a distal position to a proximal position.
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Accused Products
Abstract
A unidirectional handle device for an endoluminal device includes an outer tubular member and an elongate inner member slidably received in the outer tubular member. The unidirectional handle includes a handle member, a needle bearing clutch disposed in the handle member, a control member guide, and shaft rotatable in a single direction disposed within the handle member. The shaft is rotatable in a single direction by its engagement with the needle bearing clutch. The shaft is in rotational engagement with the outer tubular member of the endoluminal device. The outer tubular member is slidable from a distal position to a proximal position when the shaft is rotated in the single direction. The unidirectional handle device provides substantially no backlash of the outer tubular member. In addition, the unidirectional handle device advantageously produces a tension-retaining effect during use.
48 Citations
8 Claims
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1. A system for delivering an endoluminal prosthesis within a body lumen of a patient, comprising:
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a handle member; a control member slidably coupled to the handle member; an outer tubular member extending distally from the control member; an elongate inner member slidably disposed within the outer tubular member and axially fixed with respect to the handle member; a shaft rotatably mounted to the handle member, the shaft including a gear coupled to the control member such that rotation of the shaft displaces the outer tubular member axially with respect to the elongate inner member; and a uni-directional mechanism that limits rotation of the shaft to only one direction, such that when the shaft is rotated in the one direction, the outer tubular member is directed from a distal position to a proximal position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification