Radiopaque marker system for a tubular device
First Claim
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1. A medical device comprising:
- a body having an outer circumference and a distal end portion;
a first radiopaque marker located on said body adjacent said distal end portion; and
,a second radiopaque marker located on said body adjacent said distal end portion, and spaced from said first radiopaque marker, wherein each of said first and second radiopaque markers extends no more than 90 degrees around said circumference of said body wherein said first and second markers are so located in relationship to each other that they will present different images as the body is rotated around its longitudinal axis such that a rotational orientation of the device can be determined.
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Abstract
A radiopaque marking system for a device meant to be inserted into a body, such as a medical device inserted into a human body, and imaged with an x-ray source includes a tube having a distal end and an outer periphery which can be divided into four quadrants. A first radiopaque marker section is located only in a first quadrant of the body adjacent the distal end thereof. A second radiopaque marker section is located only in a second quadrant of the body adjacent the distal end portion. If desired, the two marker sections can contact each other along at least one corner of the two sections.
253 Citations
24 Claims
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1. A medical device comprising:
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a body having an outer circumference and a distal end portion; a first radiopaque marker located on said body adjacent said distal end portion; and
,a second radiopaque marker located on said body adjacent said distal end portion, and spaced from said first radiopaque marker, wherein each of said first and second radiopaque markers extends no more than 90 degrees around said circumference of said body wherein said first and second markers are so located in relationship to each other that they will present different images as the body is rotated around its longitudinal axis such that a rotational orientation of the device can be determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radiopaque marking system for a device meant to be inserted into an object and imaged with an X-ray source, comprising:
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a body having a distal end and an outer periphery which can be divided into four quadrants; a first radiopaque marker section comprising a discrete geometric figure located only in a first quadrant of said body adjacent said distal end; and
,a second radiopaque marker section comprising a discrete geometric figure located only in a second quadrant of said body adjacent said distal end wherein said first and second marker sections present different images as the body is rotated around a longitudinal axis thereof to allow a rotational orientation of the body to be identified. - View Dependent Claims (11, 12, 13, 14)
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15. An intravascular device comprising:
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a body having an outer periphery and including a distal end portion; a first substantially polygonal radiopaque marker embedded in said outer periphery of said body adjacent said distal end portion and extending less than 180°
around said outer periphery of said body; and
,a second substantially polygonal radiopaque marker embedded in said outer periphery of said body adjacent said distal end portion and extending less than 180°
around said outer periphery of said body, wherein said first radiopaque marker is spaced from said second-radiopaque marker. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A tubular device meant to be inserted into an object and imaged with an X-ray source, comprising:
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a body having an outer circumference and including a distal end; a radiopaque marker located on said body adjacent said distal end thereof, said marker extending around said outer circumference of said body less than 180 degrees, wherein said marker has a polygonal shape so as to be easily distinguished on an X-ray or fluoroscopic image of said body. - View Dependent Claims (22, 23, 24)
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Specification
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Current AssigneePeter Y Lee
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Original AssigneePeter Y Lee
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InventorsLee, Peter Y.
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Primary Examiner(s)YASKO JR, JOHN D
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Application NumberUS07/853,921Time in Patent Office397 DaysField of Search604/280, 604/281, 604/282, 604/117, 604/264, 128/657, 128/658US Class Current604/529CPC Class CodesA61B 90/39 Markers, e.g. radio-opaque ...A61M 25/0108 using radio-opaque or ultra...
