Hypotube shaft with articulation mechanism
First Claim
1. A device for delivering a medical aid into a patient, the device comprising:
- a hollow shaft having proximal and distal ends, a longitudinal axis, and flexible and rigid portions between the proximal and distal ends, the flexible portion being configured to bend away from the longitudinal axis and the hollow shaft distal end having an end face;
a guide bushing having a first lumen, an exterior surface, and a body defined between the first lumen and the exterior surface, a portion of the exterior surface of the guide bushing abutting the end face of the hollow shaft distal end;
a pull wire directly attached to and extending within the body of the guide bushing;
a flexible tube extending through the first lumen of the guide bushing; and
a sheath mechanically coupled to the flexible tube, the sheath surrounding a distal end of the flexible tube in a first position and being slidable to a second position to expose the distal end of the flexible tube,wherein the guide bushing is in a first position when the pull wire is in a first position and the guide bushing is in a second position when the pull wire is in a second position.
1 Assignment
0 Petitions
Accused Products
Abstract
A delivery device for a prosthetic heart valve includes a shaft, a sheath, and a pull wire. The shaft has a proximal end, a distal end, and a longitudinal axis. The sheath is attached to the shaft and is rotatable about an axis transverse to the longitudinal axis of the shaft. The pull wire is mechanically coupled to the sheath such that movement of the pull wire rotates the sheath relative to the shaft. The sheath may be in a first position relative to the shaft when a distal end of the pull wire is in a first position and may be in a second position when the distal end of the pull wire is in a second position. Deflection of the sheath relative to the shaft enables a prosthetic valve to be axially aligned with the native valve annulus for deployment.
97 Citations
25 Claims
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1. A device for delivering a medical aid into a patient, the device comprising:
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a hollow shaft having proximal and distal ends, a longitudinal axis, and flexible and rigid portions between the proximal and distal ends, the flexible portion being configured to bend away from the longitudinal axis and the hollow shaft distal end having an end face; a guide bushing having a first lumen, an exterior surface, and a body defined between the first lumen and the exterior surface, a portion of the exterior surface of the guide bushing abutting the end face of the hollow shaft distal end; a pull wire directly attached to and extending within the body of the guide bushing; a flexible tube extending through the first lumen of the guide bushing; and a sheath mechanically coupled to the flexible tube, the sheath surrounding a distal end of the flexible tube in a first position and being slidable to a second position to expose the distal end of the flexible tube, wherein the guide bushing is in a first position when the pull wire is in a first position and the guide bushing is in a second position when the pull wire is in a second position. - View Dependent Claims (2, 3)
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4. A device for delivering a medical aid into a patient, the device comprising:
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a hollow shaft having a proximal portion including a proximal end, a distal portion including a distal end, and flexible and rigid portions between the proximal and distal ends, the hollow shaft proximal portion having a longitudinal axis and the flexible portion being configured to bend away from the longitudinal axis; a pull wire mechanically coupled to the hollow shaft; a flexible tube extending through the distal portion of the hollow shaft a guide bushing having a first lumen, an exterior surface, and a body defined between the first lumen and the exterior surface, the exterior surface of the guide bushing being sized to matingly engage an interior surface of the hollow shaft distal portion; and
a sheath mechanically coupled to the flexible tube, the sheath surrounding a distal end of the flexible tube in a first position, and the sheath being slidable to a second position exposing the distal end of the flexible tube, wherein the hollow shaft distal portion is in a first position when the pull wire is in a first position and the hollow shaft distal portion is in a second position when the pull wire is in a second position, and wherein the pull wire extends within the body of the guide bushing. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A device for delivering a medical aid into a patient, the device comprising:
- a hollow shaft having a proximal portion including a proximal end, a distal portion including a distal end, and flexible and rigid portions between the proximal and distal ends, the hollow shaft proximal portion having a longitudinal axis and the flexible portion being configured to bend away from the longitudinal axis;
a pull wire mechanically coupled to the hollow shaft;
a flexible tube extending through the distal portion of the hollow shaft; and
a sheath mechanically coupled to the flexible tube, the sheath surrounding a distal end of the flexible tube in a first position, and the sheath being slidable to a second position exposing the distal end of the flexible tube, wherein the hollow shaft distal portion is in a first position when the pull wire is in a first position and the hollow shaft distal portion is in a second position when the pull wire is in a second position, and wherein the flexible portion is in a form of a coil. - View Dependent Claims (13, 14, 15)
- a hollow shaft having a proximal portion including a proximal end, a distal portion including a distal end, and flexible and rigid portions between the proximal and distal ends, the hollow shaft proximal portion having a longitudinal axis and the flexible portion being configured to bend away from the longitudinal axis;
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16. A device for delivering a medical aid into a patient, the device comprising:
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a hollow shaft having proximal and distal ends, a longitudinal axis, and flexible and rigid portions between the proximal and distal ends, the flexible portion being configured to bend away from the longitudinal axis; a guide bushing having a first lumen, the guide bushing being sized to matingly engage the hollow shaft distal end; a pull wire directly and fixedly attached to the guide bushing; a flexible tube extending through the first lumen of the guide bushing; and a sheath mechanically coupled to the flexible tube, the sheath surrounding a distal end of the flexible tube in a first position and the sheath being slidable to a second position exposing the distal end of the flexible tube, wherein the guide bushing is in a first position when the pull wire is in a first position and the guide bushing is in a second position when the pull wire is in a second position. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification