Splittable cannula having radiopaque marker
First Claim
1. A sheath having a distal end opaque to x-rays, comprising:
- a sheath body, said sheath body comprising a first longitudinally extending sheath score line running substantially along a length of said sheath body;
a radiopaque marker located at a distal end of said sheath body, said radiopaque marker comprising a substantially cylindrical marker body; and
at least one longitudinally extending marker score line running substantially along a length of said radiopaque marker;
wherein said radiopaque marker abuts said sheath.
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Accused Products
Abstract
A splittable cannula including a radiopaque marker. Generally, the marker is placed at or near the distal end of the cannula. The radiopaque marker may be a unitary piece, or may consist of several portions. The sheath may include a sheath body having at least one sheath score line running along a portion of the sheath body, a radiopaque marker located at a distal end of the sheath body and abutting the sheath body, and at least one score line running along a portion of the radiopaque marker. The radiopaque marker may be located within the lumen of the sheath, or may be embedded in the sheath wall. Alternative embodiments may replace the marker score line with a notch or groove running along the length of the radiopaque marker. The notches, grooves, and/or score lines in both the sheath body and radiopaque marker serve to provide a weakened tear path.
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Citations
20 Claims
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1. A sheath having a distal end opaque to x-rays, comprising:
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a sheath body, said sheath body comprising a first longitudinally extending sheath score line running substantially along a length of said sheath body;
a radiopaque marker located at a distal end of said sheath body, said radiopaque marker comprising a substantially cylindrical marker body; and
at least one longitudinally extending marker score line running substantially along a length of said radiopaque marker;
wherein said radiopaque marker abuts said sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A sheath having a distal end opaque to x-rays, comprising:
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a sheath body, said sheath body comprising a first longitudinally extending sheath score line running substantially along a length of said sheath body;
a radiopaque marker located at a distal end of said sheath body;
said radiopaque marker comprising a substantially cylindrical marker body; and
at least one longitudinally extending marker notch running substantially along a length of said radiopaque marker;
wherein said radiopaque marker abuts said sheath. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A sheath having a distal end opaque to x-rays, comprising:
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a sheath body, said sheath body comprising at least one longitudinally extending sheath score line running substantially along a length of said sheath body;
a radiopaque marker located at a distal end of said sheath body, said radiopaque marker comprising a first marker half, said radiopaque marker defining a gap substantially aligned with said sheath score line; and
wherein said radiopaque marker abuts said sheath. - View Dependent Claims (18, 19, 20)
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Specification