Wireless medical device release mechanism
AssigneeCook Medical Technologies LLC
InventorsWilliam J. Havel, Matthew S. Huser, Richard D. Hadley
Life of this patent
Estimating the term…
Abstract
A wireless medical device release system may reduce the overall diameter of the medical device delivery system. The medical device delivery system may include a medical device with a looped portion at a section of the medical device. A capture element may be located on a delivery tool that is distal to the medical device. The looped portion of the medical device may be located in the capture element and held in the capture element by a sheath covering the delivery tool. Removal of the sheath may release the looped portion of the medical device from the capture element and delivery tool.
Claims20
A medical device delivery system comprising:
- an expandable medical device having a looped portion extending from a section of the medical device, wherein the looped portion is resiliently flexible;
- a shaft comprising a proximal end and a distal end and an interposed internal lumen, the shaft having a capture element at the proximal end of the shaft, wherein the capture element receives the looped portion of the expandable medical device;
- and
- a sheath coaxially disposed over the shaft, wherein the sheath is movable from a first axial position where the sheath covers the capture element to a second axial position where the capture element is not covered by the sheath, wherein the expandable medical device is coupled to the shaft when the sheath is in the first axial position.
A method of releasing a medical device, comprising:
- delivering an implantable expandable medical device to a desired location, wherein a looped portion of the implantable expandable medical device is partially enclosed in a capture element located at a proximal end of a shaft, wherein a sheath is coaxially disposed over the capture element;
- moving the sheath away from the capture element in a direction parallel to a length of the shaft;
- uncovering the capture element;
- and
- releasing the looped portion of the implantable expandable medical device from the capture element.
A medical device delivery system for use with an expandable medical device having a resiliently flexible looped portion extending from a section of the expandable medical device, the system comprising:
- a shaft comprising a proximal end and a distal end and an interposed internal lumen, the shaft having a capture element at the proximal end of the shaft, wherein the capture element receives the looped portion of the expandable medical device;
- and
- a sheath coaxially disposed over the shaft, wherein the sheath is movable from a first axial position where the sheath covers the capture element to a second axial position where the capture element is not covered by the sheath, wherein the expandable medical device is coupled to the shaft when the sheath is in the first axial position.
Dependencies are inferred from the claim text.