Delivery systems and methods for sheathing and deploying an implantable device
First Claim
1. A delivery system for sheathing a crimpable implantable device and deploying the implantable device within a body of a patient, the delivery system comprising:
- a delivery device to position and deploy the implantable device, the delivery device including a tubular member, the tubular member including an outer sheath and a pod disposed at a distal portion of the outer sheath, the pod configured to receive and house the implantable device in a crimped state for delivery to a target location within the body of the patient, the delivery device having a partially sheathed configuration, a fully sheathed delivery configuration, and a deployed configuration; and
a sheathing mechanism that engages the tubular member of the delivery device, the sheathing mechanism including a ramped surface and a tapered member, the ramped surface to be disposed at a distal end of the outer sheath of the tubular member to collapse inwardly and compress the implantable device, the tapered member to be moved in a distal direction along the tubular member, wherein distal movement of the tapered member of the sheathing mechanism relative to the delivery device results in interaction of the tapered member and the ramped surface to crimp the implantable device and moves the outer sheath of the tubular member distally relative to a crimped portion of the implantable device to transition the delivery device from the partially sheathed configuration to the fully sheathed delivery configuration to sheathe the implantable device, wherein the distal movement of the tapered member causes distal movement of the ramped surface, and wherein the distal movement of the ramped surface is configured to pull the pod over the implantable device in the crimped state.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods are disclosed for delivering a stent to a lumen internal to a body of a patient and for sheathing a stent just prior to an insertion procedure. One embodiment comprises a delivery device having a partially sheathed configuration, a fully sheathed delivery configuration, and a deployed configuration. A panchor (combination pusher and anchor) is configured to engage and limit proximal and distal movement of the implantable device. An outer sheath surrounds a distal portion of an inner member and retains the implantable device near the distal end. The outer sheath is slidably moveable relative to the inner member to deploy the implantable device. Proximal movement of a trigger results in movement of the outer sheath to deploy the implantable device. A sheathing mechanism is configured to crimp and fully sheathe the implantable device prior to a deployment procedure.
68 Citations
31 Claims
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1. A delivery system for sheathing a crimpable implantable device and deploying the implantable device within a body of a patient, the delivery system comprising:
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a delivery device to position and deploy the implantable device, the delivery device including a tubular member, the tubular member including an outer sheath and a pod disposed at a distal portion of the outer sheath, the pod configured to receive and house the implantable device in a crimped state for delivery to a target location within the body of the patient, the delivery device having a partially sheathed configuration, a fully sheathed delivery configuration, and a deployed configuration; and a sheathing mechanism that engages the tubular member of the delivery device, the sheathing mechanism including a ramped surface and a tapered member, the ramped surface to be disposed at a distal end of the outer sheath of the tubular member to collapse inwardly and compress the implantable device, the tapered member to be moved in a distal direction along the tubular member, wherein distal movement of the tapered member of the sheathing mechanism relative to the delivery device results in interaction of the tapered member and the ramped surface to crimp the implantable device and moves the outer sheath of the tubular member distally relative to a crimped portion of the implantable device to transition the delivery device from the partially sheathed configuration to the fully sheathed delivery configuration to sheathe the implantable device, wherein the distal movement of the tapered member causes distal movement of the ramped surface, and wherein the distal movement of the ramped surface is configured to pull the pod over the implantable device in the crimped state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A delivery system for sheathing a stent and deploying the stent within a body of a patient, the delivery system comprising:
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a crimpable stent formed of a shape memory material; a delivery device to position and deploy the stent within the body, the delivery device including a tubular member, the tubular member including an outer sheath and a pod disposed at a distal portion of the outer sheath, the pod configured to receive and house the stent in a crimped state for delivery to a target location within the body of the patient, the delivery device having a partially sheathed configuration, a fully sheathed delivery configuration, and a deployed configuration; and a sheathing mechanism configured to engage the tubular member of the delivery device, the sheathing mechanism including a ramped surface and a tapered member, the ramped surface to be disposed at a distal end of the outer sheath of the tubular member to collapse inwardly and compress the stent, the tapered member to be moved in a distal direction along the tubular member, wherein distal movement of the tapered member of the sheathing mechanism relative to the delivery device results in interaction of the tapered member and the ramped surface to crimp the stent and moves the outer sheath of the tubular member distally relative to a crimped portion of the stent to sheathe the stent as the delivery device transitions from the partially sheathed configuration to the fully sheathed delivery configuration, wherein the distal movement of the tapered member causes distal movement of the ramped surface, and wherein the distal movement of the ramped surface is configured to pull the pod over the stent in the crimped state. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A method for deploying an implantable device at a target location within a body of a patient, the method comprising:
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positioning a sheathing mechanism at a distal region of a tubular member of a delivery device, the sheathing mechanism comprising a plurality of sheathing fingers to engage an outer sheath of the tubular member and a translational member that is axially displaceable relative to the tubular member of the delivery device and relative to the plurality of sheathing fingers and that interacts with the plurality of sheathing fingers to translate axial movement of the translational member in a distal direction along the tubular member into radial force to compress and thereby crimp the implantable device, wherein the delivery device is in a partially sheathed configuration having an implantable device partially unsheathed and partially sheathed at a distal end of the tubular member; grasping with a first hand the translational member of the sheathing mechanism; grasping with a second hand the delivery device; advancing the translational member of the sheathing mechanism in a distal direction with the first hand, and away from the second hand grasping the delivery device, while restraining distal movement of the delivery device, thereby moving the plurality of sheathing fingers of the sheathing mechanism distally relative to the implantable device and over the implantable device and causing the sheathing mechanism to translate axial distal movement along the tubular member into radial force that compresses and thereby crimps the implantable device and to move the distal region of the outer sheath of the tubular member of the delivery device over the crimped implantable device to fully sheathe the implantable device; positioning the distal region of the tubular member of the delivery device with the crimped and sheathed implantable device within the body of the patient at a target location; and deploying the implantable device from the delivery device at the target location. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification