DELIVERY CATHETER FOR ENDOVASCULAR DEVICE
First Claim
Patent Images
1. A delivery system for an inflatable endoluminal prosthesis, comprising:
- a delivery catheter comprising an elongate shaft including a proximal section and a fill tube including a fill tube lumen extending axially within the fill tube;
an endoluminal prosthesis releasably secured to the proximal section of the delivery catheter, the endoluminal prosthesis including an inflatable portion with an interior volume in fluid communication with a inflation port, and a proximal end of the fill tube of the catheter releasably coupled to the inflation port; and
a fill tube retention mechanism that releasably secures the fill tube lumen of the fill tube in fluid communication with the inflation port, comprising;
a tab which is disposed at a distal end of the endoluminal prosthesis in substantially fixed relation to the inflation port and which includes an aperture in the tab which is separated from the inflation port by a predetermined distance,a fitting secured to a proximal portion of the fill tube of the delivery catheter which extends laterally from the fill tube, which includes at least a portion that is sized to pass through the aperture in the tab, which is disposed a distance from a proximal end of the fill tube that allows the fill tube to be engaged with the inflation port while the fitting is disposed within the aperture, and which has a passage through the fitting, anda release wire including an outer transverse dimension and axial bending stiffness that allows the release wire to pass through the passage of the fitting and mechanically capture the tab to the fitting with the tab disposed between the release wire and the fill tube and the release wire disposed in the passage.
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Accused Products
Abstract
Some embodiments relate in part to endovascular prostheses and delivery catheter systems and methods for deploying same. Embodiments may be directed more specifically to graft bodies having self-expanding members, including inflatable graft bodies, and catheters and methods for deploying same within the body of a patient.
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Citations
23 Claims
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1. A delivery system for an inflatable endoluminal prosthesis, comprising:
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a delivery catheter comprising an elongate shaft including a proximal section and a fill tube including a fill tube lumen extending axially within the fill tube; an endoluminal prosthesis releasably secured to the proximal section of the delivery catheter, the endoluminal prosthesis including an inflatable portion with an interior volume in fluid communication with a inflation port, and a proximal end of the fill tube of the catheter releasably coupled to the inflation port; and a fill tube retention mechanism that releasably secures the fill tube lumen of the fill tube in fluid communication with the inflation port, comprising; a tab which is disposed at a distal end of the endoluminal prosthesis in substantially fixed relation to the inflation port and which includes an aperture in the tab which is separated from the inflation port by a predetermined distance, a fitting secured to a proximal portion of the fill tube of the delivery catheter which extends laterally from the fill tube, which includes at least a portion that is sized to pass through the aperture in the tab, which is disposed a distance from a proximal end of the fill tube that allows the fill tube to be engaged with the inflation port while the fitting is disposed within the aperture, and which has a passage through the fitting, and a release wire including an outer transverse dimension and axial bending stiffness that allows the release wire to pass through the passage of the fitting and mechanically capture the tab to the fitting with the tab disposed between the release wire and the fill tube and the release wire disposed in the passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of releasably securing a fill tube of a delivery catheter to a inflation port of an inflatable portion of an inflatable endoluminal prosthesis, comprising:
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delivering an endoluminal prosthesis to a treatment site, the endoluminal prosthesis being releasably secured to a proximal section of a delivery catheter, the endoluminal prosthesis including an inflatable portion with an interior volume in fluid communication with a inflation port, a proximal end of a fill tube of the delivery catheter being releasably coupled to the inflation port with a fill tube retention mechanism that releasably secures the fill tube lumen of the fill tube in fluid communication with the inflation port, comprising; a flexible tab disposed at a distal end of the endoluminal prosthesis in fixed relation to the inflation port and including an aperture in the tab which is separated from the inflation port by a predetermined distance, a fitting secured to a proximal portion of the fill tube of the delivery catheter which extends laterally from the fill tube, which includes at least a portion that is sized to pass through the aperture in the tab, which is disposed a distance from a proximal end of the fill tube that allows the fill tube to be engaged with the inflation port while the fitting is disposed within the aperture, and which has a passage through the fitting which is positioned so as to allow the tab to be disposed between the release wire and the fill tube with the release wire disposed in the passage, and a release wire including an outer transverse dimension and axial bending stiffness that allows the release wire to pass through the passage of the fitting and mechanically capture the tab to the fitting; and releasing the fitting from the tab by retracting the release wire from the passage such that the tab is no longer mechanically captured over the fitting between the fill tube and the release wire. - View Dependent Claims (15, 16)
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17. A delivery catheter for delivery of an endoluminal prosthesis, comprising:
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an elongate shaft with sufficient column strength for percutaneous advancement within a patient'"'"'s body lumen, the elongate shaft including a proximal section and a lumen extending therein; a plurality of releasable belts disposed on the proximal section of the elongate shaft and configured to releasably constrain a self-expanding member of an endoluminal prosthesis; a plurality of elongate release members in communication with a distal end of the elongate shaft and including a proximal section configured to releasably secure at least one respective releasable belt while said releasable belt is in a configuration that constrains at least a portion of an endoluminal prosthesis; and the elongate shaft comprising an elongate release wire sleeve disposed within the lumen extending within the elongate shaft, the elongate release wire sleeve including a low friction material and extending from a distal section to a proximal section of the elongate shaft, said elongate release wire sleeve comprising a separate lumen for each release member. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification