Esophageal ablation technology
AssigneeSymple Surgical, Inc.
InventorsSeth Crozier, Sohail Desai, Dan Kasprzyk, Bryce Alexander Igo
Life of this patent
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Abstract
An esophageal ablation system including a positioner, an elongated, flexible shaft extending from the positioner, and a microwave emitter assembly disposed near the distal end of the shaft. The emitter assembly includes one or more microwave antennae and a balloon for spacing the antennae relative to target tissue. The device may have an inner balloon for deploying the antenna. The systems, devices and methods disclosed are useful for treating Barrett's Esophagus, Esophageal Adenocarcinoma, and Squamous Cell Carcinoma.
Claims15
A microwave thermal ablation system for human medical therapy to treat Barrett's esophagus, esophageal adenocarcinoma, and esophageal squamous cell carcinoma, comprising:
- a microwave generator;
- a microwave emitter communicatively connected to the microwave generator, the microwave emitter being adapted to being inserted into the esophagus of a patient, the microwave emitter including:
- a centering link,
- an antenna mount,
- a pair of expansion links, and
- an antenna,
- whereby the antenna mount is adjustably connected to the centering link by the expansion links, and the antenna is connected to the antenna mount;
- a medical balloon inflation means;
- and
- a positioning balloon connected to the balloon inflation means, the positioning balloon being disposed around the at least one microwave emitter to hold the microwave emitter in a desired position relative to and spaced apart from a target tissue or tissues within the esophagus of a patient, whereby in use target esophageal cells are destroyed by non-contact dielectric heating.
A microwave thermal ablation system for use in treating Barrett's Esophageal cells, esophageal adenocarcinoma, and esophageal squamous cell carcinoma via non-contact dielectric heating, comprising:
- a. a microwave generator for providing 915 MHz to 20 GHz microwave energy;
- b. a microwave emitter communicatively connected to the microwave generator, the microwave emitter being adapted to being inserted into the esophagus of a patient, the microwave emitter including:
- a centering link,
- an antenna mount,
- a pair of expansion links, and
- an antenna,
- whereby the centering link is adjustably connected to the antenna mount by the expansion links, and the antenna is connected to the antenna mount;
- c. a medical balloon inflation means;
- d. a positioning balloon connected to the balloon inflation means;
- the positioning balloon being disposed around the microwave emitter and adapted to create a deterministic circular lumen of a known diameter inside the esophagus of a patient and to hold the microwave emitter in a desired position relative to and spaced apart from a target tissue or tissues within the esophagus of a patient, the positioning balloon being disposed around the microwave emitter, whereby, in use, target esophageal cells are destroyed by non-contact dielectric heating;
- and
- e. a catheter shaft including:
- (i) at least one power line electrically connecting the microwave generator and the microwave emitter, and
- (ii) at least one lumen communicatively fluidly connecting the balloon inflation means and the positioning balloon,
- the microwave emitter and the positioning balloon being coupled to the catheter shaft at a predetermined position, the catheter shaft being adapted to being inserted into the esophagus of a patient and for translating the at least one microwave emitter and the positioning balloon within and through the patient's esophagus.
Dependencies are inferred from the claim text.