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US 12,642,575 B2Granted
System and methods for minimally invasive ablation with injectable wire structure devices
OwnerManfred Franke, Stephan Nieuwoudt +10inventors
InventorsManfred Franke, Stephan Nieuwoudt, David Bolus, Derrick Liu, Emily Szabo, Shaher Ahmad, Aniruddha Upadhye, Sean Zuckerman, Craig Watson, Amelia Howe, Morgan McGaughey, Victoria Miduri
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Abstract
A chronic and/or acute system and methods of minimally invasive ablation with wire structure devices dispensed through a needle without open cut downs or laparoscopy and using energy forms including radiofrequency, microwave and direct current.
Claims20
A method of ablation of a tissue target in a body comprising the steps of:
- implanting an ablation electrode comprising:
- a percutaneous element;
- and
- a wire structure mechanically attached to said percutaneous element and in communication with a tissue target, said wire structure being biocompatible and forming an irrigation channel, said wire structure being formed of multiple strands that are deformed by mechanical compliance upon implantation so as to bunch relative to the tissue target when implanted, said wire structure being formed as a helical wire rope structure;
- delivering an irrigant in, on or near said tissue target through said irrigation channel of said wire structure;
- grounding the device to implement a flow of electrical current between the device and a grounding pad;
- delivering energy through said percutaneous element to said wire structure creating heat at said tissue target, said heat being configured to lesion or destroy at least a portion of said tissue target;
- and
- withdrawing said percutaneous probe and said ablation electrode from the body.
6 more elements
A method of ablation of a tissue target in a body comprising the steps of:
- implanting a device comprising:
- a wire structure in communication with, on or near a tissue target, said wire structure being biocompatible and forming an irrigation channel, said wire structure being formed of multiple strands that are deformed by mechanical compliance upon implantation so as to bunch relative to the tissue target when implanted, said wire structure being formed as a helical wire rope structure;
- grounding the device to implement a flow of electrical current between the device and a grounding pad;
- contacting the wire structure through a percutaneous probe, said percutaneous probe being energy conductive;
- delivering energy through said percutaneous probe to said wire structure creating cell damage at said tissue target, said cell damage configured to lesion or destroy at least a portion of said tissue target;
- delivering an irrigant in, on or near said tissue target through said irrigation channel while delivering energy through said percutaneous probe;
- and
- withdrawing said percutaneous probe from the body.
5 more elements
A method of ablation of a tissue target in a body comprising the steps of:
- implanting a device comprising:
- a wire structure in communication with, on or near a tissue target, said wire structure being biocompatible and defining an irrigation channel, said wire structure being formed of multiple strands that are deformed by mechanical compliance upon implantation so as to bunch relative to the tissue target when implanted,
- said wire structure being formed as a structure selected from the group of helical wire rope structures and braided wire rope structures, and
- said wire structure being formed so as to have a surface area per length of at least per unit length of at least 135 mm2/cm;
- grounding the device to implement a flow of electrical current between the device and a grounding pad;
- contacting the wire structure through a percutaneous probe, said percutaneous probe being energy conductive;
- delivering energy through said percutaneous probe to said wire structure creating cell damage at said tissue target, said cell damage configured to lesion or destroy at least a portion of said tissue target;
- delivering an irrigant in, on or near said tissue target through said irrigation channel;
- and
- withdrawing said percutaneous probe from the body.
7 more elements
Dependencies are inferred from the claim text.