Guidewireless shock wave catheters
Inventors
Betelia, Rainier • Jenkins, Todd Weston • Rond, Danielle Sheree • BARRITT, John • Nunes, Kevin • Phan, Huy
Assignees
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Publication Number
US-12178458-B1
Publication Date
2024-12-31
Expiration Date
Abstract
Various shock wave catheters and methods of use thereof that do not utilize a guidewire are described herein. The shock wave catheters include at least one shock wave emitter disposed within a distal portion of the shock wave catheter and configured to generate shock waves. The ends of conductive wires extending within an elongate tube can form the shock wave emitter(s). The shock wave emitter(s) can be surrounded by an enclosure fillable with a conductive fluid delivered by the lumen of the elongate tube. The elongate tube can include a coil or slits therein that enable flexibility of the shock wave catheter, which, in combination with the narrow profile of the shock wave catheters described herein, enable their use in navigating and treating small, tortuous vessels.
Core Innovation
A shock wave catheter is provided for treating a lesion of a body lumen. The catheter includes an elongate tube and at least one shock wave emitter disposed distal to the elongate tube and configured to generate at least one shock wave, with an enclosure enclosing at least the at least one shock wave emitter.
The catheter includes a core wire extending within the elongate tube and terminating proximate to a distal end of the elongate tube, wherein the core wire is configured to control deflection of at least a distal portion of the shock wave catheter. A distal end of the core wire comprises a distal tip disposed at or proximate to a distal end of the at least one shock wave emitter, wherein the distal tip has a larger diameter than an elongate portion of the core wire extending within the elongate tube.
In additional embodiments, the catheter includes a distal tip disposed at or proximate to a distal end of the at least one shock wave emitter. The catheter includes a first fluid lumen configured to fill the enclosure and a second fluid lumen configured to remove gas bubbles from the enclosure that are generated during shock wave generation.
Claims Coverage
The partial content includes two independent claims. The inventive features focus on a shock wave catheter architecture with an elongate tube, distal shock wave emitters in an enclosure, core-wire-controlled distal deflection, a distal tip near the emitter, and enclosure fluid handling for filling and gas-bubble removal.
Shock wave catheter with distal emitter enclosure
A shock wave catheter for treating a lesion of a body lumen comprising an elongate tube and at least one shock wave emitter disposed distal to the elongate tube and configured to generate at least one shock wave, and an enclosure enclosing at least the at least one shock wave emitter.
Core-wire deflection control with distal tip
A core wire extending within the elongate tube and terminating proximate to a distal end of the elongate tube, wherein the core wire is configured to control deflection of at least a distal portion of the shock wave catheter, and wherein a distal end of the core wire comprises a distal tip disposed at or proximate to a distal end of the at least one shock wave emitter, the distal tip having a larger diameter than an elongate portion of the core wire extending within the elongate tube.
Distal tip and enclosure fluid fill and gas-bubble removal
A shock wave catheter comprising a distal tip disposed at or proximate to a distal end of the at least one shock wave emitter, an enclosure enclosing at least the at least one shock wave emitter, a first fluid lumen configured to fill the enclosure, and a second fluid lumen configured to remove gas bubbles from the enclosure that are generated during shock wave generation.
Overall, the independent claims cover a shock wave catheter having distal shock wave emitters disposed in an enclosure, with core-wire-based deflection control and a larger-diameter distal tip near the emitter, and enclosure fluid handling including filling and removal of gas bubbles generated during shock wave generation.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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