Endovascular delivery system with an improved radiopaque marker scheme
First Claim
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1. An endovascular delivery system, comprising:
- an elongate outer tubular device having an open lumen and opposed proximal and distal ends with a medial portion therein between;
an inner tubular member disposed within said outer tubular device, said inner tubular member comprising prosthesis holder comprising;
an axial guidewire extending through said proximal portion of said inner tubular member;
a body surrounding said axial guidewire; and
an outer surface, upon which a prosthesis may be secured prior to delivery;
wherein said body comprises;
at least three generally cylindrical markers aligned in a direction parallel to said axial guidewire and each spaced an equal distance from said axial guidewire with one of the cylindrical markers being a middle cylindrical marker and another two of the cylindrical markers being side cylindrical markers; and
at least two perpendicular markers, wherein said perpendicular markers are disposed at a perpendicular angle to the axial guidewire;
wherein each of said generally cylindrical markers are spaced at about 90°
intervals as measured around the axis formed by the axial guidewire;
wherein, upon rotation of the proximal portion to a first position, only the middle cylindrical marker and the two perpendicular markers are visible and, upon rotation of the proximal portion to a second position, only the two side cylindrical markers are visible.
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Abstract
An endovascular delivery system for an endovascular prosthesis includes a radiopaque marker system for accurate delivery of the prosthesis. The radiopaque marker system is disposed within a prosthesis or stent holder within the delivery system. The radiopaque marker system includes a plurality of radiopaque markers that provide different views rotation of the prosthesis or stent holder.
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Citations
17 Claims
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1. An endovascular delivery system, comprising:
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an elongate outer tubular device having an open lumen and opposed proximal and distal ends with a medial portion therein between; an inner tubular member disposed within said outer tubular device, said inner tubular member comprising prosthesis holder comprising; an axial guidewire extending through said proximal portion of said inner tubular member; a body surrounding said axial guidewire; and an outer surface, upon which a prosthesis may be secured prior to delivery; wherein said body comprises; at least three generally cylindrical markers aligned in a direction parallel to said axial guidewire and each spaced an equal distance from said axial guidewire with one of the cylindrical markers being a middle cylindrical marker and another two of the cylindrical markers being side cylindrical markers; and at least two perpendicular markers, wherein said perpendicular markers are disposed at a perpendicular angle to the axial guidewire; wherein each of said generally cylindrical markers are spaced at about 90°
intervals as measured around the axis formed by the axial guidewire;wherein, upon rotation of the proximal portion to a first position, only the middle cylindrical marker and the two perpendicular markers are visible and, upon rotation of the proximal portion to a second position, only the two side cylindrical markers are visible. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification