Recovery Catheter Assembly
First Claim
1. A recovery catheter assembly comprising:
- an actuator element;
a mechanically radially expandable and contractible recovery device operably connected to the actuator element, the recovery device having proximal and distal ends;
the recovery device comprising;
proximal and distal blocking portions at the proximal and distal ends thereof; and
a central portion between the proximal and distal blocking portions;
the recovery device at least partially placeable in a first, radially collapsed configuration and in a second, radially expanded configuration by manipulation of the actuator element so that when in the second, radially expanded configuration the proximal and distal blocking portions have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion.
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0 Petitions
Accused Products
Abstract
An example of recovery catheter assembly comprises an actuator element and a mechanically radially expandable and contractible recovery device operably connected to the actuator element. The recovery device has proximal and distal blocking portions and a central portion therebetween. The recovery device is at least partially placeable in a first, radially collapsed configuration and in a second, radially expanded configuration by manipulation of the actuator element. When in the second, radially expanded configuration, the proximal and distal blocking portions have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion.
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Citations
41 Claims
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1. A recovery catheter assembly comprising:
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an actuator element; a mechanically radially expandable and contractible recovery device operably connected to the actuator element, the recovery device having proximal and distal ends; the recovery device comprising; proximal and distal blocking portions at the proximal and distal ends thereof; and a central portion between the proximal and distal blocking portions; the recovery device at least partially placeable in a first, radially collapsed configuration and in a second, radially expanded configuration by manipulation of the actuator element so that when in the second, radially expanded configuration the proximal and distal blocking portions have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A recovery catheter assembly, for use within a body passageway at an ostium, comprising:
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an outer, actuator sheath having a distal portion; an inner, hollow recovery catheter having a sidewall, the recovery catheter defining a recovery lumen, the recovery catheter housed within the actuator sheath, the recovery catheter having a distal end; an actuator wire extending along the recovery catheter and having a tip positioned distal of the distal end of the recovery catheter; a mechanically radially expandable and contractible recovery device having a proximal end secured to the distal portion of the actuator sheath by a proximal extension element and a distal end secured to the tip of the actuator wire by a distal extension element; the recovery device comprising; proximal and distal blocking portions at the proximal and distal ends thereof; a central portion between the proximal and distal blocking portions; and a return channel extending between the proximal and distal ends thereof; the recovery device placeable in a first, radially collapsed configuration when the actuator wire is pushed distally to a distal actuator wire position relative to the recovery device and the actuator sheath is pulled proximally to a proximal actuator sheath position relative to the recovery device; the recovery device placeable in a second, radially expanded configuration when the actuator wire is pulled proximally to a proximal actuator wire position relative to the recovery device and the actuator sheath is pushed distally to a distal actuator sheath position relative to the recovery device; when in the second, radially expanded configuration; the proximal and distal blocking portions having radial dimensions greater than the radial dimension of the central portion thereby defining a collection chamber at the central portion; and the proximal and distal expansion elements having open regions to permit fluid flow through the return channel of the recovery device; and a lateral passageway extending through the central portion of the recovery device and the sidewall of the recovery catheter, the parts of the proximal and distal blocking portions and the central portion defining the collection chamber being liquid impervious with the exception of the passageway; whereby liquid from an ostium of a liquid transporting vessel opening into the collection chamber can pass through the passageway and into and through the recovery lumen.
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26. A recovery catheter assembly, for use within a body passageway at an ostium, comprising:
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an outer, actuator sheath having a distal portion; an inner, hollow recovery catheter having a sidewall, the recovery catheter defining a recovery lumen, the recovery catheter housed within the actuator sheath, the recovery catheter having a distal end; an actuator wire extending along the recovery catheter and having a tip positioned distal of the distal end of the recovery catheter; a mechanically radially expandable and contractible recovery device having a proximal end secured to the distal portion of the actuator sheath by a proximal extension element and a distal end secured to the tip of the actuator wire by a distal extension element; the recovery device comprising; proximal and distal toroidal blocking balloons at the proximal and distal ends thereof; a central portion between the proximal and distal blocking portions; and a return channel extending between the proximal and distal ends; the recovery device placeable in a first, radially collapsed configuration when (1) the blocking balloons are in deflated states, and (2) the actuator wire is pushed distally to a distal actuator wire position relative to the recovery device and the actuator sheath is pulled proximally to a proximal actuator sheath position relative to the recovery device; the recovery device placeable in a second, radially expanded configuration when (1) the blocking balloons are in inflated states, and (2) the actuator wire is pulled proximally to a proximal actuator wire position relative to the recovery device and the actuator sheath is pushed distally to a distal actuator sheath position relative to the recovery device; when in the second, radially expanded configuration; the proximal and distal blocking balloons having radial dimensions greater than the radial dimension of the central portion thereby defining a collection chamber at the central portion; and the proximal and distal expansion elements having open regions to permit fluid flow through the return channel of the recovery device; and a lateral passageway extending through the central portion of the recovery device and the sidewall of the recovery catheter, the parts of the proximal and distal blocking portions and the central portion defining the collection chamber being liquid impervious with the exception of the passageway; whereby liquid from an ostium of a liquid transporting vessel opening into the collection chamber can pass through the passageway and into and through the recovery lumen. - View Dependent Claims (27)
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28. A method for directing a fluid, which passes through an ostium into a body passageway, to a fluid recovery device comprising:
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positioning a radially expandable and contractible recovery device within a body passageway at an ostium with the recovery device in a first, radially collapsed configuration, the recovery device having a proximal end and a distal end; placing the recovery device in a second, radially expanded configuration, the placing step carried out at least in part by the mechanical manipulation of at least one mechanical actuator element thereby mechanically expanding the proximal and distal blocking portions so that when the recovery device is in the second, radially expanded configuration, the proximal and distal blocking portions having radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion; and flowing fluid from the collection chamber into the recovery device. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A method for recovering venous effluent from an organ, the organ having a distal vein and a draining vein, comprising:
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placing a funnel device of a recovery catheter assembly within a tubular body vessel at a venous ostium of an organ being treated, the funnel device having an open end; placing the open end of the funnel device within the distal vein of the organ at the ostium; forcing the funnel device against the venous wall to create a seal between the funnel device and the draining vein thereby creating a collection chamber defined between the funnel device and the organ; infusing an agent into the patient; collecting fluid from the organ in the collection chamber; filtering the collected fluid; and returning the filtered collected fluid to the patient. - View Dependent Claims (35, 36, 37, 38)
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39. A method for determining the effectiveness of a seal at a collection chamber created between a recovery device of a recovery catheter assembly and an organ from which fluid is collected, comprising:
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infusing an indicator agent and a therapeutic agent into a patient; collecting a fluid, which passes through an ostium of an organ into a body passageway, in a collection chamber defined between a fluid recovery device of a recovery catheter assembly and the organ; processing the collected fluid, the processing step comprising removing the indicator agent and the therapeutic agent from the collected fluid; returning the processed fluid to the patient; collecting systemic fluid from the patient; and testing the collected systemic fluid for the presence of the indicator agent.
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40. A method for removing a therapeutic agent from a patient comprising:
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infusing a therapeutic agent into a patient; collecting a fluid passing from an organ; adding a binding material comprising an affinity agent into the collected fluid; binding the therapeutic agent within the collected fluid to the affinity agent; processing the collected fluid and the binding material, the processing step comprising removing the binding material with the therapeutic agent bound thereto from the collected fluid; and returning the processed fluid to the patient. - View Dependent Claims (41)
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Specification