Endoluminal prostheses having position indicating markers
First Claim
1. An endoluminal prosthesis for deployment in a body lumen of a patient body, the prosthesis comprising:
- a tubular fabric liner having a proximal end, a distal end, and a lumen therebetween;
a radially expandable frame supporting the liner; and
a plurality of radiopaque marker elements, each marker element comprising a plate having at least one passage therethrough and stitched through the passage to the liner, the marker elements indicating a position of the prosthesis when the prosthesis is imaged within the body lumen, wherein the marker elements are not directly attached to the frame.
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Accused Products
Abstract
The present invention provides an endoluminal prosthesis for deployment in a body lumen of a patient body, the prosthesis comprising a tubular fabric liner and a radially expandable frame supporting the liner. A plurality of imagable bodies are attached to the liner, the imagable bodies providing a sharp contrast so as to define a pattern which indicates the prosthesis position when the prosthesis is imaged within the patient body. Preferably, each imagable body comprises a plate having first and second opposed major surfaces and a passage therebetween to facilitate stitching the imagable body to the liner. Advantageously, the imagable bodies can be aligned with the openings of a perforate frame structure so that at least some of the imagable bodies are visible through associated openings, but need not actually be attached to the frame directly. Such imagable bodies are clearly visible when the prosthesis is deployed, and can also be sized to produce distinct images even when the frame is compressed within a delivery catheter, but will not interfere with the radial expansion of the frame during deployment.
575 Citations
27 Claims
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1. An endoluminal prosthesis for deployment in a body lumen of a patient body, the prosthesis comprising:
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a tubular fabric liner having a proximal end, a distal end, and a lumen therebetween;
a radially expandable frame supporting the liner; and
a plurality of radiopaque marker elements, each marker element comprising a plate having at least one passage therethrough and stitched through the passage to the liner, the marker elements indicating a position of the prosthesis when the prosthesis is imaged within the body lumen, wherein the marker elements are not directly attached to the frame. - View Dependent Claims (2, 3)
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4. An endoluminal prosthesis for deployment in a body lumen of a patient body, the prosthesis comprising:
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a radially expandable tubular body having a proximal port, a distal port, and a lumen therebetween, the lumen defining a centerline; and
a plurality of marker elements which define a pattern when the prosthesis is imaged within the patient body, wherein each marker element comprises a high contrast plate and the pattern includes a gate disposed adjacent to the distal or proximal port, the gate comprising radially separated marker elements on opposed sides of the centerline when the prosthesis is properly orientated so as to facilitate deployment of a secondary prosthetic module within the adjacent port of the prosthesis. - View Dependent Claims (5, 6, 7, 8)
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- 9. An endoluminal body lumen marker for use in positioning a later deployed endoluminal prosthesis in a body lumen of a patient high contrast plate, the lumen marker comprising a body which produces a sharp contrast when imaged within the body lumen, and a support structure which maintains a position of the lumen marker within the body lumen until the prosthesis is positioned and deployed across the lumen marker.
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16. An endoluminal stent-graft comprising:
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a tubular liner having a lumen which defines an axis; and
a tubular frame supporting the liner, the frame having a plurality of marker elements integrally formed with the tubular Frame, the marker elements defining a pattern which indicates a position of the prosthesis when the prosthesis is imaged within the body lumen. - View Dependent Claims (17)
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18. A method for assembling an endoluminal prosthesis at a target location of a body lumen, the method comprising:
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introducing a first tubular endoluminal prosthetic module into the body lumen;
positioning the first module adjacent to the target location;
radially expanding the first module to deploy the module adjacent to the target location, the expanded first module having first and second marker elements disposed adjacent to a port, wherein each marker element comprises a high contrast plate;
introducing a second tubular prosthetic module into the body lumen; and
positioning the second module within the port of the first module by imaging the first module and axially advancing the second module between the first and second marker elements. - View Dependent Claims (19, 20)
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21. A method for positioning a tubular endoluminal prosthesis at a target location of a body lumen, the method comprising:
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introducing a guidewire through the body lumen and advancing the guidewire beyond the target location;
advancing the prosthesis over the guidewire so that the guidewire passes through a lumen of the prosthesis;
radially orienting the prosthesis by imaging the prosthesis within the body lumen and aligning an image of a marker element of the prosthesis with an image of the guidewire, wherein, the marker element comprises a high contrast plate.
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22. A method for positioning a tubular endoluminal prosthesis at a target location of a body lumen, the method comprising:
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introducing the prosthesis into the body lumen;
positioning the prosthesis adjacent to the target location;
radially orienting the prosthesis by imaging the prosthesis within the body lumen and aligning an image of a first marker element of the prosthesis with an image of a second marker element of the prosthesis, wherein the first and second marker elements each comprise a high contrast plate and are axially offset from each other.
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23. A method for verifying the radial orientation of a port of a branching tubular endoluminal prosthesis within a body lumen, the method comprising:
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introducing the prosthesis into the body lumen;
radially orienting the prosthesis;
deploying an end of the prosthesis which is separated from the port by axially withdrawing a surrounding sheath and allowing the prosthesis end to expand resiliently; and
imaging at least one port orientation indicating marker element disposed on the expanded end of the prosthesis while the prosthesis adjacent the port remains compressed, wherein the marker element comprises a high contrast plate.
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24. A method for deploying an endoluminal prosthesis, the method comprising:
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introducing a marker element into a body lumen and deploying the marker element so as to mark a target location of the body lumen;
introducing the prosthesis into the body lumen;
aligning the prosthesis with the deployed marker element; and
deploying the aligned prosthesis within the body lumen. - View Dependent Claims (25)
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26. An endoluminal prosthesis comprising:
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a frame comprising a high-strength material; and
a marker element comprising a high-contrast imagable material wherein the high-strength and high-contrast materials have similar electromotive force characteristics to avoid corrosion. - View Dependent Claims (27)
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Specification