Method for aligning a stent graft delivery system
First Claim
1. A method of implanting a prosthesis in a patient at a treatment site, which comprises:
- providing a prosthesis delivery sheath with an alignment device;
loading a prosthesis into the sheath;
advancing the sheath in a patient up to the treatment site; and
viewing at least one of a rotational and an axial position of the alignment device at the treatment site and, if the sheath is not in a desired position, moving the sheath to the desired position based upon the position of the alignment device.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of implanting a prosthesis in a patient at a treatment site includes the steps of providing a prosthesis delivery sheath with an alignment device, loading a prosthesis into the sheath, advancing the sheath in a patient up to the treatment site, and viewing at least one of a rotational and an axial position of the alignment device at the treatment site and, if the sheath is not in a desired position, moving the sheath to the desired position based upon the position of the alignment device. The alignment device can be a pair of markers on opposing sides of a longitudinal axis of the sheath such that, when viewed from a side of the sheath, the pair forms a given shape that communicates to a user a direction in which the sheath needs to rotate minimally to align the markers and form the given shape.
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Citations
41 Claims
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1. A method of implanting a prosthesis in a patient at a treatment site, which comprises:
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providing a prosthesis delivery sheath with an alignment device;
loading a prosthesis into the sheath;
advancing the sheath in a patient up to the treatment site; and
viewing at least one of a rotational and an axial position of the alignment device at the treatment site and, if the sheath is not in a desired position, moving the sheath to the desired position based upon the position of the alignment device. - 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, 25, 26, 27, 28, 29, 30, 31)
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32. A method of implanting a prosthesis in a patient at a treatment site, which comprises:
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providing a prosthesis delivery sheath having an alignment device;
loading a prosthesis into the sheath;
advancing the sheath in a patient up to the treatment site; and
viewing the rotational position of the alignment device at the treatment site and, if the sheath is not in a rotationally desired position, rotating the sheath to the desired position. - View Dependent Claims (33, 34)
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35. A method of implanting a prosthesis in a patient at a treatment site, which comprises:
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providing a prosthesis delivery sheath having an alignment device;
loading a prosthesis into the sheath;
advancing the sheath in a patient up to the treatment site; and
viewing the axial position of the alignment device at the treatment site and, if the sheath is not in an axially desired position, one of extending and retracting the sheath to the desired axial position. - View Dependent Claims (36, 37)
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38. A method of implanting a prosthesis in a patient at a treatment site, which comprises:
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providing a prosthesis delivery system with a relatively flexible inner sheath and a relatively stiff outer sheath;
providing the inner sheath with an alignment device;
loading a prosthesis inside the inner sheath;
loading the inner sheath containing the prosthesis within the outer sheath;
advancing the outer sheath in a patient towards the treatment site up to a given position at a distance from the treatment site;
while retaining the outer sheath in the given position;
advancing the inner sheath out from the outer sheath to the treatment site;
viewing the axially position of the alignment device at the treatment site and, if the inner sheath is not in an axially desired position, one of advancing and retracting the inner sheath to the desired position;
viewing the rotational position of the alignment device at the treatment site and, if the inner sheath is not in a rotationally desired position, rotating the inner sheath to the desired position; and
retracting the inner sheath to at least partially implant the prosthesis at the treatment site; and
upon completion of prosthesis implantation, retracting both of the inner and outer sheaths from the patient. - View Dependent Claims (39, 40, 41)
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Specification