Catheter
OwnerEamon Brady, Brendan Casey +3inventors
InventorsEamon Brady, Brendan Casey, Anton Clifford, John Neilan, Gary Fahey
Life of this patent
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Abstract
A catheter 100 for delivery or retrieval of an embolic protection filter 101 has a distal pod 102 to house the filter 101. The filter 101 is deployed by means of an inflation balloon or sac 103 and the catheter has a proximal stop 104 for the sac. A proximal catheter shaft 106 has an inflation lumen for inflating the sac 103 from a delivery retracted configuration to a longitudinally extended configuration to deploy the filter 101. A transition mid section shaft 109 extends proximally from the pod 102 and defines a rapid exchange exit port 105 for a guidewire 107.
Claims81
1) A catheter comprising:
- i. a catheter shaft;
- ii. a pod defining a reception space for an embolic protection filter and an energy converter to convert energy into a translational movement of the filter relative to the pod;
- iii. the filter being movable relative to the pod to facilitate deployment of a filter from within the reception space or retrieval of a filter into the reception space.
36) A catheter as claimed in any preceding claim wherein the catheter shaft has a reinforcement.
71) A catheter as claimed in any preceding claim wherein the catheter is a delivery catheter and the pod defines a reception space for delivery of a filter to a desired site.
73) A method of delivering a filter comprising the steps of:
- i. providing a delivery catheter comprising a catheter shaft, an energy converter and a reception space;
- ii. placing a filter in the reception space;
- iii. advancing the delivery catheter and filter through the vasculature to a target deployment site;
- iv. deploying the filter at the target site with the assistance of fluid pressure.
78) A method of retrieving a filter comprising the steps of:
- i. providing a retrieval catheter comprising a catheter shaft, an energy converter and a reception space;
- ii. advancing the retrieval catheter through the vasculature to the retrieval site;
- iii. retrieving the filter at the target site with the assistance of fluid pressure.
82) A method of deploying or retrieving a filter comprising the steps of:
- i. displacing a volume of fluid at a proximal end of a catheter;
- ii. converting the displaced volume of fluid into a displacement at the distal end of a catheter;
- iii. the displacement effecting a deployment or retrieval of a filter.
83) A catheter substantially as hereinbefore described with reference to the accompanying drawings.
Dependencies are inferred from the claim text.