LARGE MOUTH SNARE DEVICE
First Claim
1. An apparatus for removing an object from a vessel, the apparatus comprising:
- an expandable catheter having a first distal end insertable to a position adjacent to the object within the vessel, a first opening adjacent to the first distal end, and a first lumen in communication with the first opening;
an expandable funnel within the first lumen, the expandable funnel being manipulable between a closed position wherein the expandable funnel is compressed within the first lumen, and an open position, wherein the expandable funnel extends out of the first opening and has a diameter greater than the expandable catheter; and
a snare device extending from the first lumen and configured to capture an object in the vessel and retract the object at least partially into the expandable funnel.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for removing an object from a vessel are disclosed. The apparatus includes an expandable catheter, an expandable funnel, and a snare device configured to snare an object within the vessel. A distal end of the expandable catheter may be manipulable such that retraction of the expandable catheter allows the expandable funnel device to expand. Once the snare device has been manipulated to capture the object, the snare device and object may then be retracted into the funnel device, which may then protect the surrounding structures from being damaged by the object. In some embodiments, the expended funnel device, snare device, and object may be retracted into the expandable catheter in order to further protect the surrounding structures from damage.
122 Citations
20 Claims
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1. An apparatus for removing an object from a vessel, the apparatus comprising:
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an expandable catheter having a first distal end insertable to a position adjacent to the object within the vessel, a first opening adjacent to the first distal end, and a first lumen in communication with the first opening; an expandable funnel within the first lumen, the expandable funnel being manipulable between a closed position wherein the expandable funnel is compressed within the first lumen, and an open position, wherein the expandable funnel extends out of the first opening and has a diameter greater than the expandable catheter; and a snare device extending from the first lumen and configured to capture an object in the vessel and retract the object at least partially into the expandable funnel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for removing an object from a vessel, the apparatus comprising:
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an expandable catheter having a first distal end insertable to a position adjacent to the object within the vessel, a first opening adjacent to the first distal end, and a first lumen in communication with the first opening; an expandable funnel within the first lumen, the expandable funnel comprising PFTE, nylon, or Nitinol, and being manipulable between a closed position wherein the expandable funnel is compressed within the first lumen, and an open position, wherein the expandable funnel extends out of the first opening and has a diameter greater than the expandable catheter; a first hollow wire having a second distal end, a second opening and a second lumen in communication with the second opening, the first hollow wire being positioned within the first lumen and coupled to the expandable funnel; a guidewire configured to pass within the second lumen; and a snare device extending from the first lumen and configured to capture an object in the vessel and retract the object at least partially into the expandable funnel, wherein the expandable catheter is configured to expand to at least partially encompass the expandable funnel, snare device, and object. - View Dependent Claims (13, 14, 15, 16)
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17. A method of removing an object from a vessel, the method comprising:
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providing an expandable catheter having a first distal end insertable to a position adjacent to the object within the vessel, a first opening adjacent to the first distal end, and a first lumen in communication with the first opening;
an expandable funnel within the first lumen, the expandable funnel being manipulable between a closed position wherein the expandable funnel is compressed within the first lumen, and an open position, wherein the expandable funnel extends out of the first opening and has a diameter greater than the expandable catheter; and
a snare device extending from the first lumen and configured to capture an object in the vessel and retract the object at least partially into the expandable funnel;inserting the expandable catheter to a first position wherein the first distal end is adjacent to the object within the vessel; manipulating the snare device to capture the object; retracting the snare device and the object into the expandable funnel; retracting the expandable funnel into the expandable catheter; and retracting the expandable catheter to remove the expandable catheter, expandable funnel, snare device, and object from the vessel without causing injury to the vessel. - View Dependent Claims (18, 19, 20)
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Specification