Delivery system for a medical device
First Claim
1. A delivery system for delivery of a medical device, the delivery system comprising:
- an inner member having a proximal end and a distal end, the inner member defining a longitudinal axis therebetween;
a sheath disposed about the inner member, the sheath having a proximal end and a distal end, the sheath being movable between a first sheath position to a second sheath position;
a handle coupled with the proximal end of the inner member; and
an actuator on the handle including a slider configured for linear movement and having an elongate surface with a plurality of teeth therealong, the actuator coupled to a rack-and-pinion assembly;
the rack-and-pinion assembly including;
a pinion coupled with the sheath, the pinion configured for linear movement in the same direction as the slider and having a plurality of teeth along its length; and
at least one rack gear being rotatable about a center axis, the at least one rack gear including;
a circumferential surface,a first gear pitch operatively coupled with the pinion for linear movement of the pinion upon rotation of the at least one rack gear, anda second gear pitch vertically displaced on a height of the circumferential surface, the first gear pitch being different from the second gear pitch,wherein the plurality of teeth of the slider are operatively coupled with the second gear pitch of the at least one rack gear for rotation of the at least one rack gear and linear movement of the pinion and sheath along the longitudinal axis upon linear movement of the slider.
1 Assignment
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Accused Products
Abstract
The invention is directed to a delivery system for delivering a medical device. The delivery system includes an inner member having a proximal end and a distal end. The inner member defines a longitudinal axis between the proximal end and the distal end. A tip is formed at the distal end of the inner member. A bumper is freely disposed on the inner member. The bumper has a proximal end and a distal end. A seat is defined between the tip and the distal end of the bumper. Additionally, a sheath is disposed about the inner member, the sheath having a proximal end and a distal end. The sheath is movable from a first sheath position substantially covering the seat, and a second sheath position axially offset to expose the seat. The invention also includes a handle in contact with the proximal end of the inner member.
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Citations
21 Claims
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1. A delivery system for delivery of a medical device, the delivery system comprising:
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an inner member having a proximal end and a distal end, the inner member defining a longitudinal axis therebetween; a sheath disposed about the inner member, the sheath having a proximal end and a distal end, the sheath being movable between a first sheath position to a second sheath position; a handle coupled with the proximal end of the inner member; and an actuator on the handle including a slider configured for linear movement and having an elongate surface with a plurality of teeth therealong, the actuator coupled to a rack-and-pinion assembly; the rack-and-pinion assembly including; a pinion coupled with the sheath, the pinion configured for linear movement in the same direction as the slider and having a plurality of teeth along its length; and at least one rack gear being rotatable about a center axis, the at least one rack gear including; a circumferential surface, a first gear pitch operatively coupled with the pinion for linear movement of the pinion upon rotation of the at least one rack gear, and a second gear pitch vertically displaced on a height of the circumferential surface, the first gear pitch being different from the second gear pitch, wherein the plurality of teeth of the slider are operatively coupled with the second gear pitch of the at least one rack gear for rotation of the at least one rack gear and linear movement of the pinion and sheath along the longitudinal axis upon linear movement of the slider. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A delivery system for delivery of a medical device, the delivery system comprising:
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an inner member having a proximal end and a distal end, the inner member defining a longitudinal axis therebetween; a tip disposed at the distal end of the inner member; a bumper disposed on the inner member, the bumper having a proximal end and a distal end, the bumper including a sleeve member having a length and a tubular wall, a seat being defined between the tip and the distal end of the bumper; a sheath disposed about the inner member, the sheath having a proximal end and a distal end, the sheath being movable between a first sheath position to a second sheath position; a handle coupled with the proximal end of the inner member; and an actuator on the handle including a slider configured for linear movement and having an elongate surface with a plurality of teeth therealong, the actuator coupled to a rack-and-pinion assembly; the rack-and-pinion assembly including; a pinion coupled with the sheath, the pinion configured for linear movement in the same direction as the slider and having a plurality of teeth along its length; and at least one rack gear being rotatable about a center axis, the at least one rack gear including; a circumferential surface, a first gear pitch operatively coupled with the pinion for linear movement of the pinion upon rotation of the at least one rack gear, and a second gear pitch vertically displaced on a height of the circumferential surface, the first gear pitch being different from the second gear pitch, wherein the plurality of teeth of the slider are operatively coupled with the second gear pitch of the at least one rack gear for rotation of the at least one rack gear and linear movement of the pinion and sheath along the longitudinal axis upon linear movement of the slider. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for delivery of a medical device, the method comprising:
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providing a delivery system including; an inner member having a proximal end and a distal end, the inner member defining a longitudinal axis therebetween, a sheath disposed about the inner member, the sheath having a proximal end and a distal end, the sheath being movable from a first sheath position to a second sheath position, a handle coupled with the proximal end of the inner member, and an actuator on the handle including a slider configured for linear movement and having an elongate surface with a plurality of teeth therealong, the actuator coupled to a rack-and-pinion assembly; the rack-and-pinion assembly including; a pinion coupled with the sheath, the pinion configured for linear movement in the same direction as the slider and having a plurality of teeth along its length; and at least one rack gear being rotatable about a center axis, the at least one rack gear including; a circumferential surface, a first gear pitch operatively coupled with the pinion for linear movement of the pinion upon rotation of the at least one rack gear, and a second gear pitch vertically displaced on a height of the circumferential surface, the first gear pitch being different from the second gear pitch, wherein the plurality of teeth of the slider are operatively coupled with the second gear pitch of the at least one rack gear for rotation of the at least one rack gear and linear movement of the pinion and sheath along the longitudinal axis upon linear movement of the slider; and moving the slider linearly to rotate the at least one rack gear and linearly move the sheath along the longitudinal axis. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification