Delivery catheter
First Claim
1. A delivery system for transvascular deployment of a medical device comprising:
- a medical catheter assembly comprising;
a catheter including a first portion and a second portion, the first portion including an elongate tubular body having a proximal end portion and a distal end portion, the second portion extending from the distal end portion of the first portion and forming a tubular pod capable of receiving a medical device, and a deployer movable through the pod and coupled to the medical device to assist in moving the medical device between a stored position within the pod and an in-use position external of the pod, the pod having a maximum wall thickness that is less than a minimum wall thickness of the distal end portion of the tubular body, and the pod having a greater flexibility than the distal end portion of the tubular body; and
a separate loading device which is operable to collapse the medical device from the expanded in-use position to a collapsed position for reception within the nod, wherein the loading device comprises a funnel having an enlarged inlet end and a narrowed outlet end, the outlet end being engageable with the pod.
1 Assignment
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Accused Products
Abstract
A medical catheter for the transvascular deployment of a collapsaible medial device such as a filter has a tubular body formed by an inner tubular core surrounded by an outer thin-walled tube which is fixed to the core. The outer thin-walled tube extends outwardly beyond a distal end of the core to form a fixed thin-walled medical device embracing pod. The filter is carried on a guidewire which is slidably engagable within a central lumen of the core and the filter can be collapsed against the guidewire for loading within the pod. With the filter thus loaded within the pod the distal end of the catheter can be maneuvered through a patient'"'"'s vascular system to a desired deployment site where the filter is discharged from the pod allowing the filter to expand within the blood vessel for use filtering blood flowing through the blood vessel.
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Citations
43 Claims
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1. A delivery system for transvascular deployment of a medical device comprising:
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a medical catheter assembly comprising;
a catheter including a first portion and a second portion, the first portion including an elongate tubular body having a proximal end portion and a distal end portion, the second portion extending from the distal end portion of the first portion and forming a tubular pod capable of receiving a medical device, and a deployer movable through the pod and coupled to the medical device to assist in moving the medical device between a stored position within the pod and an in-use position external of the pod, the pod having a maximum wall thickness that is less than a minimum wall thickness of the distal end portion of the tubular body, and the pod having a greater flexibility than the distal end portion of the tubular body; and
a separate loading device which is operable to collapse the medical device from the expanded in-use position to a collapsed position for reception within the nod, wherein the loading device comprises a funnel having an enlarged inlet end and a narrowed outlet end, the outlet end being engageable with the pod. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A medical catheter pack for a delivery system for transvascular deployment of a medical device comprising:
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a delivery system for transvascular deployment of a medical device comprising;
a medical catheter assembly comprising;
a catheter including a first portion and a second portion, the first portion including an elongate tubular body having a proximal end portion and a distal end portion, the second portion extending from the distal end portion of the first portion and forming a tubular pod capable of receiving a medical device, and a deployer movable through the pod and coupled to the medical device to assist in moving the medical device between a stored position within the pod and an in-use position external of the pod, the pod having a maximum wall thickness that is less than a minimum wall thickness of the distal end portion of the tubular body, and the pod having a greater flexibility than the distal end portion of the tubular body; and
a separate loading device which is operable to collapse the medical device from the expanded in-use position to a collapsed position for reception within the pod, the pack comprising the delivery system and a tray configured to releasably hold the pod of the catheter and the loading device in a cooperative juxtaposition on the tray, wherein the tray has a liquid retaining bath formed by a recess in the tray, the bath having a depth sufficient to accommodate, in a totally submerged state, the pod of the catheter and the medical device for submerged loading of the medical device into the pod. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A medical catheter assembly for the transvascular deployment of a medical device, the assembly comprising:
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a catheter including a first portion and a second portion, the first portion including an elongate tubular body having a proximal end portion, a distal end portion, and a helically wound spring forming an inner tubular core encased within a concentric tubular outer sheath which is fixed to the core, and the second portion formed by a portion of the sheath extending from the distal end portion of the first portion and forming a tubular pod capable of receiving a medical device; and
a deployer movable through the pod and coupled to the medical device to assist in moving the medical device between a stored position within the pod and an in-use position external of the pod, the pod having a maximum wall thickness that is less than a minimum wall thickness of the distal end portion of the tubular body, and the pod having a greater flexibility than the distal end portion of the tubular body. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for deploying a medical device at a desired location in a vasculature, the method comprising the steps of:
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providing a medical catheter, the catheter comprising an elongate tubular portion having a proximal end and a distal end, the distal end of the tubular portion including a pod capable of receiving the medical device; and
a deployer engageable with the medical device;
providing a loading device for collapsing the medical device from an expanded in-use position to a collapsed position for reception within the pod, the loading device having an inlet end and an outlet end;
engaging the outlet end of the loading device within the pod;
engaging the medical device with the deployer;
retracting the deployer proximally through the tubular portion, to draw the medical device through the loading device into the pod, thereby collapsing the medical device;
disengaging the loading device from the pod;
inserting the catheter into the vasculature and advancing the catheter through the vasculature until the pod is at the desired location;
deploying the medical device at the desired location. - View Dependent Claims (27, 28, 29)
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30. A delivery system for transvascular deployment of a medical device comprising:
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a catheter assembly comprising;
a catheter including a first portion and a second portion, the first portion including an elongate tubular body having a proximal end portion and a distal end portion, the second portion extending from the distal end portion of the first portion and forming a tubular pod capable of receiving a medical device; and
a deployer movable through the pod and coupled to the medical device to assist in moving the medical device between a stored position within the pod and an in-use position external of the pod, the pod having a maximum wall thickness that is less than a minimum wall thickness of the distal end portion of the tubular body; and
a separate loading device which is operable to collapse the medical device from an expanded in-use Position to a collapsed position for reception within a pod, the loading device comprising a funnel having an enlarged inlet end and a narrowed outlet end, the outlet end being engageable with the pod. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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37. A delivery system for transvascular deployment of a medical device comprising:
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a catheter assembly comprising;
a catheter including a first portion and a second portion, the first portion including an elongate tubular body having a proximal end portion and a distal end portion, the second portion extending from the distal end portion of the first portion and forming a tubular pod capable of receiving a medical device; and
a deployer movable through the pod and coupled to the medical device to assist in moving the medical device between a stored position within the pod and an in-use position external of the pod, the pod having a greater flexibility than the distal end portion of the tubular body; and
a separate loading device which is operable to collapse the medical device from an expanded in-use position to a collapsed position for reception within a pod, the loading device comprising a funnel having an enlarged inlet end and a narrowed outlet end, the outlet end being engageable with the pod. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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Specification