Renal nerve ablation catheter having twist balloon
First Claim
Patent Images
1. A medical device, comprising:
- a catheter shaft;
an expandable balloon coupled to the catheter shaft, the balloon having a proximal end, a distal end, and a length extending therebetween, and the balloon comprising a plurality of pre-formed channels extending along the length of the balloon;
a support structure coupled to the balloon, the support structure configured to twist and fold the balloon in a pre-determined manner upon retraction of the balloon and support structure into a guide catheter, and the support structure comprising a plurality of elongate support elements extending along the length of the balloon, the elongate support elements being disposed in the pre-formed channels; and
a plurality of flexible electrode assemblies coupled to the balloon between adjacent pre-formed channels.
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Accused Products
Abstract
Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a catheter shaft. An expandable balloon may be coupled to the catheter shaft. The balloon may be capable of shifting between a folded configuration and an expanded configuration. A support structure may be coupled to the balloon. The support structure may be capable of shifting the balloon toward the folded configuration. A plurality of elongate flexible electrode assemblies may be disposed on the balloon. The elongate flexible electrode assemblies may be oriented at an angle relative to a longitudinal axis of the balloon.
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Citations
20 Claims
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1. A medical device, comprising:
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a catheter shaft; an expandable balloon coupled to the catheter shaft, the balloon having a proximal end, a distal end, and a length extending therebetween, and the balloon comprising a plurality of pre-formed channels extending along the length of the balloon; a support structure coupled to the balloon, the support structure configured to twist and fold the balloon in a pre-determined manner upon retraction of the balloon and support structure into a guide catheter, and the support structure comprising a plurality of elongate support elements extending along the length of the balloon, the elongate support elements being disposed in the pre-formed channels; and a plurality of flexible electrode assemblies coupled to the balloon between adjacent pre-formed channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical device, comprising:
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a catheter shaft; an expandable balloon coupled to the catheter shaft, the balloon being capable of shifting between a folded configuration and an expanded configuration, and the balloon comprising a plurality of pre-formed channels extending along a length of the balloon; a support structure coupled to the balloon, the support structure comprising a plurality of elongate support elements extending along the length of the balloon, the elongate support elements being disposed in the pre-formed channels, and the support structure being configured to twist and fold the balloon in a pre-determined manner upon retraction of the balloon and support structure into a guide catheter; and a plurality of elongate flexible electrode assemblies coupled to the balloon between adjacent pre-formed channels, wherein the elongate flexible electrode assemblies are twisted at an angle relative to a longitudinal axis of the balloon. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification