Steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities

Claim 2

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending longitudinally thereof a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, the first lumen extending through the balloon and being open at its distal extremity a guide wire extending through the first lumen and having a coil carried by the distal portion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, means coupled to the guide wire limiting inward and outward movement of the guide wire in a direction longitudinal of the axis of rotation of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon and a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting.

Claim 3

A catheter assembly as in claim 1 wherein the coil of said guide wire is rotatable with respect to the distal extremity of the tubular member and is extensible with respect to the tubular member.

Claim 4

A catheter assembly as in claim 1 wherein said guide wire includes an elongate flexible element extending through the tubular member and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other.

Claim 5

A catheter assembly as in claim 1 wherein said means for limiting movement of the guide wire in a direction longitudinal of the axis of rotation includes a fixed member, a knob secured to the guide wire and means carried by the knob and adapted to engage the fixed member to limit inward and ouward movement with respect to the fixed member.

Claim 6

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, a first elongate flexible tubular member having a lumen extending, therethrough and being open at the distal extremity of the first tubular member, a second elongate flexible tubular element and forming between the first and second tubular elements an annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular element and having its interior in communication with the lumen extending between the first and second tubular elements, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of toh guide wire and limiting inward and ouward movement of the guide wire in a direction longitudinal of the axis of rotation of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting.

Claim 7

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, a first elongate flexible tubular member having a lumen extending, therethrough and being open at the distal extremity of the first tubular member, a second elongate flexible tubular element and forming between the first and second tubular elements an annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular element and having its interior in communication with the lumen extending between the first and second tubular elements, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of toh guide wire and limiting inward and ouward movement of the guide wire in a direction longitudinal of the axis of rotation of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting.

Claim 8

A catheter assembly as in claim 5 wherein the coil of said guide wire is rotatable with respect to the distal extremities of the first and second elongate elements and is extensible with respect to the first and second elongate elements.

Claim 9

A catheter assembly as in claim 1 wherein said means for limiting the inward and outward movement of the guided wire includes a fixed member, a knob secured to the guide wire and means carried by the knob and adapterd to engage the fixed member to limit inward and outward movement with respect to the fixed member.

Claim 10

A catheter assembly as in claim 7 wherein said means for limiting movement of the guide wire includes an additional knob carried by the first tubular element, an extension carried by the first named knob and slidably mounted in the additional knob and a ring carried by the first named knob and spaced a predetermined distance from the first named knob and beyond the additional knob.

Claim 11

A catheter assembly as in claim 5 wherein the guide wire includes an elongate flexible element extending through the first tubular element and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other.

Claim 12

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending longitudinally thereof, a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, a guide wire extending through the first lumen and having a coil carried by the distal portion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting and means bonding the proximal extremity of the coil to the distal extremity of the tubular member, said tubular member having at least one opening remote from the balloon extending from the first lumen to ambient whereby dye injections and pressure measurements can be made through said at least one opening.

Claim 13

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending longitudinally thereof, a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, a guide wire extending through the first lumen and having a coil carried by the distal portion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting and means bonding the proximal extremity of the coil to the distal extremity of the tubular member, said tubular member having at least one opening remote from the balloon extending from the first lumen to ambient whereby dye injections and pressure measurements can be made through said at least one opening.

Claim 14

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending therethrough, a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, a guide wire extending through the first lumen and having a coil carried by the distal portion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon and a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, said guide wire including an elongate flexible element extending through the tubular member and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the flexible elongate element of the guide wire being free to rotate with respect to the proximal extremity of the coil.

Claim 15

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending therethrough, a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, a guide wire extending through the first lumen and having a coil carried by the distal portion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon and a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, said guide wire including an elongate flexible element extending through the tubular member and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the flexible elongate element of the guide wire being free to rotate with respect to the proximal extremity of the coil.

Claim 16

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending, longitudinally thereof, a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, a guide wire extending through the first lumen and having a coil carried by the distal potion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon and a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, said guide wire including an elongate flexible element extending through the tubular member and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the proximal extremity of the coil being bonded to the tubular member.

Claim 17

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending, longitudinally thereof, a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, a guide wire extending through the first lumen and having a coil carried by the distal potion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon and a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, said guide wire including an elongate flexible element extending through the tubular member and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the proximal extremity of the coil being bonded to the tubular member.

Claim 18

In a steerable balloon dilatation catheter assembly having dye injection and paressure measurement capabilities, a first elongate flexible tubular member having a lumen extending therethrough, a second elongate flexible tubular element and forming between the first and second tubular elements an annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular elements and having its interior in communication with the lumen extending between the first and second tubular elements, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting and means for bonding the proximal extremity of the coil to the distal extremity of the first tubular element, said first and second tubular elements having at least one opening remote from the balloon extending from the lumen in the first tubular element to ambient whereby dye injections and pressure measurements can be made through said opening.

Claim 19

In a steerable balloon dilatation catheter assembly having dye injection and paressure measurement capabilities, a first elongate flexible tubular member having a lumen extending therethrough, a second elongate flexible tubular element and forming between the first and second tubular elements an annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular elements and having its interior in communication with the lumen extending between the first and second tubular elements, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting and means for bonding the proximal extremity of the coil to the distal extremity of the first tubular element, said first and second tubular elements having at least one opening remote from the balloon extending from the lumen in the first tubular element to ambient whereby dye injections and pressure measurements can be made through said opening.

Claim 20

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, a first elongate flexible tubular member having a lumen extending therethrough, a second elongate flexible tubular element and forming between the first and second tubular elements and annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular elements and having its interior in communication with the lumen extending between the first and second tubular elements, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, the guide wire including an elongate flexible element extending through the first tubular element and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the flexible elongate element of the guide wire being free to rotate with respect to the proximal extremity of the coil.

Claim 21

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, a first elongate flexible tubular member having a lumen extending therethrough, a second elongate flexible tubular element and forming between the first and second tubular elements and annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular elements and having its interior in communication with the lumen extending between the first and second tubular elements, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, the guide wire including an elongate flexible element extending through the first tubular element and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the flexible elongate element of the guide wire being free to rotate with respect to the proximal extremity of the coil.

Claim 22

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, a first elongate flexible tubular member having a lumen extending therethrough, a second elongate flexible tubular element and forming between the first and second tubular elements an annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular elements and having its interior in communication with the lumen extending between the first and second tubular elelments, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, the guide wire including an elongate flexible element extending through the first tubular element and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the proximal extremity of the coil being bonded to the tubular member.

Claim 23

In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, a first elongate flexible tubular member having a lumen extending therethrough, a second elongate flexible tubular element and forming between the first and second tubular elements an annular lumen extending longitudinally of the first and second tubular elements, a balloon carried by the second tubular elements and having its interior in communication with the lumen extending between the first and second tubular elelments, a guide wire extending through the lumen of the first tubular element and having a coil carried by the distal extremity thereof and extending beyond the distal extremity of the first and second tubular elements, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, a first fitting coupled to the lumen extending between the first and second tubular elements and adapted to receive a liquid for inflating and deflating the balloon, a second fitting in communication with the lumen in the first tubular element, said first lumen in said first tubular element and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting, the guide wire including an elongate flexible element extending through the first tubular element and to the distal extremity of the coil and a hemispherical tip bonding the distal extremities of the flexible elongate element and the coil to each other, the proximal extremity of the coil being bonded to the tubular member.