Splittable cannula having radiopaque marker
First Claim
1. A splittable sheath having a distal end opaque to x-rays, the splittable sheath comprisinga tubular body formed by a sidewall, wherein the sidewall further defines a pair of grooves spaced apart from each other and extending longitudinally along the tubular body;
- anda radiopaque marker encapsulated within the sidewall and positioned at the distal end of the splittable sheath, the radiopaque marker havingan annular wall;
a first marker score line within the annular wall extending longitudinally at a first position on the annular wall; and
a second marker score line within the annular wall extending longitudinally at a second position on the annular wall spaced apart from the first position;
wherein the first marker score line is aligned with a first one of the grooves and the second marker score line is aligned with a second one of the grooves.
2 Assignments
0 Petitions
Accused Products
Abstract
A splittable cannula includes a radiopaque marker 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 cannula may include a sheath or catheter body with a grooved score line running along a portion of the sheath body and a radiopaque marker located at a distal end of the body and abutting the body. The radiopaque marker may be located within the lumen of the sheath, may be embedded in the sheath wall, or may be affixed to the external sheath wall. The radiopaque marker may be scored, notched, grooved, or contain apertures longitudinally. The notches, grooves, apertures, and/or score lines in both the sheath or catheter body and the radiopaque marker serve to provide a weakened tear path. An electrode lead may be coupled with the radiopaque marker.
41 Citations
13 Claims
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1. A splittable sheath having a distal end opaque to x-rays, the splittable sheath comprising
a tubular body formed by a sidewall, wherein the sidewall further defines a pair of grooves spaced apart from each other and extending longitudinally along the tubular body; - and
a radiopaque marker encapsulated within the sidewall and positioned at the distal end of the splittable sheath, the radiopaque marker having an annular wall; a first marker score line within the annular wall extending longitudinally at a first position on the annular wall; and a second marker score line within the annular wall extending longitudinally at a second position on the annular wall spaced apart from the first position; wherein the first marker score line is aligned with a first one of the grooves and the second marker score line is aligned with a second one of the grooves. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A splittable cannula having a section opaque to x-rays, the splittable cannula comprising
a tubular body formed by a sidewall, wherein the sidewall further defines a pair of grooves spaced apart from each other and extending longitudinally along the tubular body; -
a radiopaque marker positioned within the sidewall, the radiopaque marker having an annular wall; a first weakened area of the annular wall at a first position on the annular wall; a second weakened area of the annular wall at a second position on the annular wall spaced apart from the first position, wherein the first weakened area and the second weakened area divide the annular wall into substantially equal opposing halves; and at least one connecting strip in each of the first and second weakened areas joining the opposing halves of the radiopaque marker; wherein the first weakened area is aligned with a first one of the grooves and the second weakened area is aligned with a second one of the grooves. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification