Guide wire for use with a catheter
First Claim
1. A guide wire, comprising:
- a) an elongated core wire extending along a longitudinal axis from a proximal core wire end to a distal core wire portion having a distal core wire end, wherein the distal core wire portion comprises opposed first and second major surfaces meeting opposed third and fourth minor surfaces with a central major plane located midway between the first and second major surfaces and a central minor plane located midway between the third and fourth minor surfaces, and wherein the first and second major surfaces taper from a first spaced apart distance that is spaced proximally from the distal core wire end to a second spaced apart distance at the distal core wire end, the second distance being less than the first distance; and
b) a reinforcing member supported on one of the first and second major surfaces of the distal core wire portion, the reinforcing member comprising opposed fifth and sixth sides meeting a seventh reinforcing edge, wherein the fifth and sixth sides are spaced closer to the central minor plane than the respective adjacent third and fourth minor surfaces of the distal core wire portion, and wherein the seventh reinforcing edge comprises a distal tapered edge portion and a proximal longitudinally extending edge portion, the distal tapered edge portion beginning at a location spaced from the distal core wire end and extending proximally and away from the one of the first and second major surfaces of the distal core wire portion upon which the reinforcing member is supported to meet the proximal longitudinally extending edge portion,c) wherein a distance from the distal core wire end to the location where the distal tapered edge portion of the reinforcing member begins at the one of the first and second surfaces of the distal core wire portion provides a guide portion of the distal core wire portion, the guide portion being adapted to be shaped into a desired curved configuration for facilitating guiding of the guide wire into a branched vessel of a subject.
5 Assignments
0 Petitions
Accused Products
Abstract
A guide wire (1) for use with a catheter comprises a core wire (3) terminating in a distal portion (18) of flat ribbon-like construction having respective opposite major surfaces (29,30). A spring (24) is brazed to a distal end (27) of the distal portion (18) and to the core wire (3) at a tapering portion (14). A reinforcing member (38) extends axially along the distal portion (18) from a proximal end (26) of the distal portion (18) to a location (40) for reinforcing the distal portion (18) for in turn increasing its torsional rigidity in order to minimize axial twisting of the distal portion (18). A guide portion (42) of the distal portion (18) between the location (40) and the distal end (27) is provided to be bent at a desired set curved configuration for offsetting a distal tip (9) of the guide wire (1) from a central axis (8) thereof, so that by rotating the guide wire (1) at its proximal end (5) the distal portion (18) is also rotated for aligning the distal tip (9) with a branched vessel into which it is desired to direct and urge the guide wire (1).
11 Citations
20 Claims
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1. A guide wire, comprising:
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a) an elongated core wire extending along a longitudinal axis from a proximal core wire end to a distal core wire portion having a distal core wire end, wherein the distal core wire portion comprises opposed first and second major surfaces meeting opposed third and fourth minor surfaces with a central major plane located midway between the first and second major surfaces and a central minor plane located midway between the third and fourth minor surfaces, and wherein the first and second major surfaces taper from a first spaced apart distance that is spaced proximally from the distal core wire end to a second spaced apart distance at the distal core wire end, the second distance being less than the first distance; and b) a reinforcing member supported on one of the first and second major surfaces of the distal core wire portion, the reinforcing member comprising opposed fifth and sixth sides meeting a seventh reinforcing edge, wherein the fifth and sixth sides are spaced closer to the central minor plane than the respective adjacent third and fourth minor surfaces of the distal core wire portion, and wherein the seventh reinforcing edge comprises a distal tapered edge portion and a proximal longitudinally extending edge portion, the distal tapered edge portion beginning at a location spaced from the distal core wire end and extending proximally and away from the one of the first and second major surfaces of the distal core wire portion upon which the reinforcing member is supported to meet the proximal longitudinally extending edge portion, c) wherein a distance from the distal core wire end to the location where the distal tapered edge portion of the reinforcing member begins at the one of the first and second surfaces of the distal core wire portion provides a guide portion of the distal core wire portion, the guide portion being adapted to be shaped into a desired curved configuration for facilitating guiding of the guide wire into a branched vessel of a subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A guide wire, comprising:
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a) an elongated core wire extending along a longitudinal axis from a proximal core wire end to a distal core wire portion having a distal core wire end, wherein the distal core wire portion comprises opposed first and second major surfaces meeting opposed third and fourth minor surfaces with a central major plane located midway between the first and second major surfaces and a central minor plane located midway between the third and fourth minor surfaces, and wherein the first and second major surfaces taper from a first spaced apart distance that is spaced proximally from the distal core wire end to a second spaced apart distance at the distal core wire end, the second distance being less than the first distance; and b) a reinforcing member supported on one of the first and second major surfaces coincident with the central minor axis of the distal core wire portion, the reinforcing member comprising opposed fifth and sixth sides meeting a seventh reinforcing edge, wherein the fifth and sixth sides are spaced closer to the central minor plane than the respective adjacent third and fourth minor surfaces of the distal core wire portion, and wherein the seventh reinforcing edge comprises a distal tapered edge portion and a proximal longitudinally extending edge portion, the distal tapered edge portion beginning at a location spaced from the distal core wire end and extending proximally and away from the one of the first and second major surfaces of the distal core wire portion upon which the reinforcing member is supported to meet the proximal longitudinally extending edge portion, c) wherein a distance from the distal core wire end to the location where the distal tapered edge portion of the reinforcing member begins at the one of the first and second surfaces of the distal core wire portion provides a guide portion of the distal core wire portion, the guide portion being adapted to be shaped into a desired curved configuration for facilitating guiding of the guide wire into a branched vessel of a subject. - View Dependent Claims (16, 17)
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18. A guide wire, comprising:
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a) an elongated core wire extending along a longitudinal axis from a proximal core wire end to a distal core wire portion having a distal core wire end, wherein the distal core wire portion comprises opposed first and second major surfaces meeting opposed third and fourth minor surfaces with a central major plane located midway between the first and second major surfaces and a central minor plane located midway between the third and fourth minor surfaces, and wherein the first and second major surfaces taper toward, but do not meet, the central major plane as they extend to the distal core wire end; and b) a reinforcing member supported on one of the first and second major surfaces of the distal core wire portion, the reinforcing member comprising opposed fifth and sixth sides meeting a seventh reinforcing edge, wherein the fifth and sixth sides are spaced closer to the central minor plane than the respective adjacent third and fourth minor surfaces of the distal core wire portion, and wherein the seventh reinforcing edge comprises a distal tapered edge portion and a proximal longitudinally extending edge portion, the distal tapered edge portion beginning at a location spaced from the distal core wire end and extending proximally and away from the one of the first and second major surfaces of the distal core wire portion upon which the reinforcing member is supported to meet the proximal longitudinally extending edge portion, c) wherein a distance from the distal core wire end to the location where the distal tapered edge portion of the reinforcing member begins at the one of the first and second surfaces of the distal core wire portion provides a guide portion of the distal core wire portion, the guide portion being adapted to be shaped into a desired curved configuration for facilitating guiding of the guide wire into a branched vessel of a subject. - View Dependent Claims (19, 20)
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Specification