Guide wire control catheters for crossing occlusions and related methods of use
First Claim
1. A wire control catheter for controlling advancement of a guide wire through a blood vessel, comprising:
- a single control wire for articulating a distal tip portion of the catheter; and
a shaft having a single control wire lumen for receiving said single control wire.
3 Assignments
0 Petitions
Accused Products
Abstract
A wire control catheter for aligning and guiding a guide wire through a lesion in a vessel is provided. The wire control catheter includes a shaft having a guide wire lumen and a control wire lumen. A control wire passes through the control wire lumen and is used in combination with an articulation structure to deflect or curve a distal tip portion of the catheter. The distal catheter shaft may include a centering device for centering the catheter within the vessel. The distal catheter shaft also may include a pre-dilation balloon for dilating the lesion prior to performing angioplasty or other treatment on the lesion. Additionally, a sliding sheath catheter may be used to provide additional support to the guide wire. The sliding sheath catheter is sized to fit within the guide wire lumen of the control catheter and to allow the guide wire to pass through it. A method of treatment of a blood vessel includes inserting a guide wire into the blood vessel and advancing a control catheter over the guide wire until the distal tip of catheter is near the occlusion in the blood vessel. The tip of the catheter then is deflected via a control wire and an articulation structure. The guide wire is then advanced across the occlusion. The control catheter also may be advanced across the occlusion simultaneously with the guide wire or subsequent to the guide wire crossing. Prior to crossing the occlusion, the wire control catheter may be centered using a centering device. Subsequent to crossing the occlusion, the occlusion may be pre-dilated with a pre-dilation balloon of the wire control catheter.
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Citations
77 Claims
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1. A wire control catheter for controlling advancement of a guide wire through a blood vessel, comprising:
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a single control wire for articulating a distal tip portion of the catheter; and
a shaft having a single control wire lumen for receiving said single control wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A wire control catheter for controlling advancement of a guide wire through a blood vessel, comprising:
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a shaft defining a guide wire lumen and a control wire lumen and having a deflectable distal tip portion;
means for deflecting the distal tip portion; and
a centering device on a distal portion of the shaft. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A wire control catheter for controlling advancement of a guide wire through a blood vessel, comprising:
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a first shaft portion defining a control wire lumen extending between a distal tip of the catheter and a proximal end of the catheter;
a second shaft portion defining a guide wire lumen, wherein the guide wire lumen is substantially shorter than the control wire lumen; and
a deflectable distal tip portion. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A system for controlling advancement of a guide wire through a blood vessel, comprising:
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a wire control catheter having a guide wire lumen, a control wire lumen, and a control wire within the control wire lumen; and
a sliding sheath catheter positionable within the guide wire lumen. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A method of treating a blood vessel, comprising:
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inserting a guide wire into the blood vessel;
advancing a control catheter over the guide wire until a distal tip of the catheter is near an occlusion in the blood vessel;
deflecting a distal tip of the catheter; and
advancing the guide wire across the occlusion. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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- 58. The method of 57, wherein deflecting a distal tip of the catheter includes actuating an articulation structure.
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73. A wire control catheter for controlling advancement of a guide wire through a blood vessel, comprising:
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a shaft having a deflectable distal tip; and
a pre-dilation balloon connected to a portion of the shaft. - View Dependent Claims (76, 77)
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74. The catheter of claim 74, further including a centering device.
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75. The catheter of claim 75, wherein the centering device is positioned on the deflectable distal tip.
Specification