Methods and apparatus for treatment of patent foramen ovale
First Claim
1. A method of treating a patent foramen ovale, the method comprising:
- advancing a catheter device having a proximal end, a distal end and at least one abrasive needle near the distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale;
exposing a plurality of abrasive needles from the catheter;
advancing the exposed abrasive needles through the patent foramen ovale; and
retracting the abrasive needles relative to the patent foramen ovale to abrade at least a portion of tissue adjacent the patent foramen ovale.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatus for treatment of patent foramen ovale (PFO) generally involve use of a catheter having treatment means at its distal end. In some embodiments, the treatment means includes one or more retractable abrasive needles used to abrade tissue adjacent the PFO to induce closure of the PFO. In other embodiments, treatment means includes an energy transmission member or one or more apertures for dispensing a fluid to contact and close the PFO. An exemplary method involves advancing a catheter device to position the distal end adjacent the PFO, exposing a plurality of abrasive needles from the catheter, advancing the needles through the PFO and/or tissue adjacent the PFO, and retracting the needles relative to the PFO to abrade at least a portion of the tissue.
311 Citations
109 Claims
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1. A method of treating a patent foramen ovale, the method comprising:
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advancing a catheter device having a proximal end, a distal end and at least one abrasive needle near the distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale;
exposing a plurality of abrasive needles from the catheter;
advancing the exposed abrasive needles through the patent foramen ovale; and
retracting the abrasive needles relative to the patent foramen ovale to abrade at least a portion of tissue adjacent the patent foramen ovale. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of treating a patent foramen ovale, the method comprising:
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advancing a catheter device having a proximal end, a distal end and at least one abrasive needle near the distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale;
exposing the at least one abrasive needle from the catheter;
advancing the at least one exposed abrasive needle through heart wall tissue adjacent the patent foramen ovale; and
retracting the at least one abrasive needle relative to the tissue to abrade at least a portion of the tissue. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of treating a patent foramen ovale, the method comprising:
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advancing a catheter device having a proximal end, a distal end and at least one abrasive needle near the distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale;
exposing a first abrasive needle from the catheter such that the exposed first abrasive needle extends through at least part of the patent foramen ovale;
exposing at least a second abrasive needle from the catheter such that the exposed second abrasive needle extends through the patent foramen ovale; and
retracting the first and second abrasive needles relative to the patent foramen ovale to abrade at least a portion of tissue adjacent the patent foramen ovale. - View Dependent Claims (24, 25)
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26. A method of treating a patent foramen ovale, the method comprising:
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advancing a catheter device having a proximal end, a distal end and an energy transmission member near the distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale; and
transmitting energy from the energy transmission member to contact tissue adjacent the patent foramen ovale to induce closure of the patent foramen ovale. - View Dependent Claims (27, 28, 29, 30, 31)
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32. A method of treating a patent foramen ovale, the method comprising:
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advancing a catheter device having a proximal end, a distal end and at least one aperture near the distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale; and
dispensing at least one fluid from the at least one aperture to contact tissue adjacent the patent foramen ovale to induce closure of the patent foramen ovale. - View Dependent Claims (33, 34)
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35. A method of treating a patent foramen ovale in a heart, the method comprising:
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advancing a catheter device having a proximal end and a distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale; and
delivering a closure device at least partially through the patent foramen ovale to induce closure of the patent foramen ovale, wherein a portion of the closure device disposed within the patent foramen ovale applies lateral force against tissues at opposite sides of the patent foramen ovale to bring tissue between the sides together. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A method of treating a patent foramen ovale in a heart, the method comprising:
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disposing at least a portion of a closure device within the patent foramen ovale; and
applying lateral, oppositely directed force to tissues at opposite sides of the patent foramen ovale, using the portion of the closure device disposed in the patent foramen ovale, so as to bring a septum primum and a septum secundum between the opposite sides into contact. - View Dependent Claims (51, 52, 53, 54, 55)
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56. A method of treating a patent foramen ovale in a heart, the method comprising:
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advancing a catheter device having a proximal end and a distal end through vasculature of a patient to position the distal end adjacent the patent foramen ovale; and
delivering a self-closing closure device from the catheter to contact tissues adjacent the patent foramen ovale, wherein the delivered self-closing closure device closes to bring together the tissues the patent foramen ovale. - View Dependent Claims (57, 58, 59)
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60. A method of treating a patent foramen ovale in a heart, the method comprising:
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attaching a closure device to a limbus of a fossa ovalis of the heart; and
allowing a portion of the closure device to hang from the limbus to cover an opening of the patent foramen ovale. - View Dependent Claims (61)
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62. A method of treating a patent foramen ovale in a heart, the method comprising:
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advancing an elongate catheter device through septum primum tissue near the patent foramen ovale;
adjusting a retractable delivery arm from the catheter device, the delivery arm coupled with a distal end of the catheter device via a universal joint; and
manipulating the catheter device to deploy a spiral needle from the delivery arm into tissues adjacent the patent foramen ovale to bring the tissues together. - View Dependent Claims (63, 64)
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65. Apparatus for treating a patent foramen ovale, the apparatus comprising:
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an elongate catheter body having a proximal end and a distal end; and
at least one retractable abrasive needle movable between a retracted position wherein the needle resides wholly within the catheter body and a deployed position wherein at least a portion of the needle extends through an opening in the catheter body adjacent the distal end. - View Dependent Claims (66, 67, 68, 69, 70, 71)
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72. Apparatus for treating a patent foramen ovale, the apparatus comprising:
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an elongate catheter body having a proximal end and a distal end; and
at least one energy transmission member coupled with the catheter body adjacent the distal end for transmitting energy to contact tissue adjacent the patent foramen ovale to induce closure of the patent foramen ovale. - View Dependent Claims (73, 74, 75, 76, 77)
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78. Apparatus for treating a patent foramen ovale, the apparatus comprising:
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an elongate catheter body having a proximal end and a distal end; and
at least one aperture in the catheter body adjacent the distal end for dispensing at least one fluid to contact tissue adjacent the patent foramen ovale to induce closure of the patent foramen ovale. - View Dependent Claims (79, 80)
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81. Apparatus for treating a patent foramen ovale, the apparatus comprising:
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an elongate catheter body having a proximal end and a distal end; and
at least one closure device deployable from the catheter body, wherein the closure device attaches to tissue adjacent the patent foramen ovale and self-closes to bring the tissues together. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90)
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91. Apparatus for treating a patent foramen ovale comprising a clip expandable from a first dimension to a second larger dimension sized to engage the tissue of the patent foramen ovale, wherein the clip in the larger dimension applies lateral force to tissue at opposite sides of the patent foramen ovale to bring tissues between the opposite sides together, and wherein the clip can revert or be made to revert to its first dimension.
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92. Apparatus for treating a patent foramen ovale comprising:
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an elongate catheter body having a proximal end and a distal end; and
at least one force application member coupled with the distal end for applying lateral force to opposite sides of the patent foramen ovale, thus bringing tissues between the opposite sides into contact. - View Dependent Claims (93, 94, 95, 96, 97, 98, 99, 100)
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101. Apparatus for treating a patent foramen ovale comprising:
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an attachment member for attaching to a limbus of a fossa ovalis of the patent foramen ovale; and
a covering member coupled with the attachment member for extending from the limbus to cover an opening of the patent foramen ovale. - View Dependent Claims (102, 103, 104, 105, 106, 107)
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108. Apparatus for treating a patent foramen ovale comprising:
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an elongate catheter configured to pierce through septum primum tissue adjacent the patent foramen ovale;
a retractable delivery arm coupled with a distal end of the elongate catheter at a universal joint; and
a spiral needle coupled with and deployable from the retractable delivery arm, wherein turning the catheter deploys the spiral needle into tissue adjacent the patent foramen ovale. - View Dependent Claims (109)
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Specification