Interventional system having cooperative balloon catheter and guidewire
AssigneeAbbott Cardiovascular Systems Inc.
InventorJonathan P. Durcan
Life of this patent
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Abstract
An interventional system is used to treat a lesion in a target anatomy. The interventional system includes a balloon catheter and a guidewire. The balloon catheter includes a balloon coupled to a catheter shaft. The catheter shaft includes a guidewire lumen having a lumen diameter. The guidewire includes a coil tip coupled to a guidewire shaft at a proximal joint. A coil diameter of the coil tip at the proximal joint is larger than the lumen diameter of the catheter shaft. The interventional system can be used to access and treat the lesion in the target anatomy. Other embodiments are also described and claimed.
Claims20
An interventional system, comprising:
- a balloon catheter including a balloon coupled to a catheter shaft, wherein the catheter shaft includes a guidewire lumen having a lumen diameter;
- and
- a guidewire removable from the balloon catheter and including a coil tip coupled to a guidewire shaft at a proximal joint, wherein a coil diameter of the coil tip at the proximal joint is larger than the lumen diameter of the catheter shaft, and wherein the proximal joint is radially between the coil tip and the guidewire shaft and includes a proximal face tapering radially inward in a distal direction from the coil tip to the guidewire shaft.
A guidewire, comprising:
- a guidewire shaft;
- a coil tip;
- and
- a proximal joint radially between the guidewire shaft and the coil tip, wherein the proximal joint includes a proximal face shaped to receive a distal tip of a balloon catheter, and wherein the proximal face tapers radially inward in a distal direction from the coil tip to the guidewire shaft.
A method, comprising:
- delivering a guidewire into a target anatomy, wherein the guidewire includes a coil tip coupled to a guidewire shaft at a proximal joint, and wherein the coil tip has a coil diameter at the proximal joint, and wherein the proximal joint is radially between the coil tip and the guidewire shaft and includes a proximal face tapering radially inward in a distal direction from the coil tip to the guidewire shaft;
- delivering a balloon catheter over the guidewire, wherein the balloon catheter is removably disposed on the guidewire, wherein the balloon catheter includes a balloon coupled to a catheter shaft, and wherein the catheter shaft includes a guidewire lumen having a lumen diameter smaller than the coil diameter;
- and
- advancing the guidewire and the balloon catheter through a lesion in the target anatomy.
Dependencies are inferred from the claim text.