Perorally insertable gastroesophageal anti-reflux valve prosthesis and tool for implantation thereof
AssigneeReflux Corporation
InventorThomas V. Taylor
Life of this patent
Estimating the term…
Abstract
Disclosed is an instrument, valve prosthesis and procedure for the minimally invasive implantation of a sutureless anti-reflux valve in a patient for the treatment of gastroesophageal reflux disease. Self-anchoring or stapleable one-way anti-reflux valve prostheses are provided, which may be implanted proximate a patient's gastroesophageal junction without open or laparoscopic surgery. An instrument for the peroral insertion, positioning and fixing of the valve prosthesis to the tissue of the esophagus is described for the implantation of either the self-anchoring or stapleable prosthesis.
Claims20
A peroral prosthesis system for treatment of gastroesophageal reflux disease in a patient comprising:
- an anti-reflux valve prosthesis comprising:
- a mounting ring,
- a one-way valve depending from the mounting ring, for allowing orthograde passage of swallowed material, and impending the passage of gastric content, and
- a plurality of anchors extending radially outwardly from the mounting ring, wherein the anchors comprise a radial array of straight, orthogonal spikes for piercing and engaging the lumen wall of the esophagus;
- and
- a peroral implantation tool for perorally inserting and positioning the prosthesis at a distal end of the lumen of an esophagus, and fixing the prosthesis to the lumen wall of the esophagus, said tool comprising:
- an overtube for peroral insertion adjacent to a gastroesophageal junction, having a collar at a distal end and a handle at a proximal end;
- a compression collar integral with the distal end of the overtube for releaseably receiving the mounting ring in a compressed configuration;
- a hollow stylet slidably indwelling in the length of the overtube;
- and
- a balloon attached to a distal end of the stylet received in the compression collar, and communicating with a hollow of the stylet, and inflatable by pressurizing the hollow of the stylet.
A peroral anti-reflux valve prosthesis comprising:
- a mounting ring of a compressible memory material;
- an array of tissue anchors extending radially outward from the mounting ring, the anchors having spikes for piercing and engaging the lumen wall of an esophagus and fixing the mounting ring in the lumen of the esophagus, wherein the spikes are straight and orthogonal with respect to the mounting ring;
- and
- a one-way valve depending from the mounting ring, for allowing orthograde passage of swallowed material, and impeding the passage of gastric content.
A minimally invasive method for surgically treating gastro-esophageal reflux disease in a patient with a peroral implantation system comprising as anti-reflux valve prosthesis and an implantation tool, the prosthesis comprising a mounting ring, a one-way valve depending from the mounting ring, for allowing orthograde passage of swallowed material, and impeding the passage of gastric content, and a plurality of anchors extending radially outwardly from the mounting ring, comprising the steps of:
- perorally inserting the prosthesis received in a distal end of the implantation tool into an esophagus;
- positioning the prosthesis adjacent to an esophageal junction;
- perforating a lumen wall of the esophagus with the anchors to fix the prosthesis in place in the esophagus of the patient;
- removing the implantation tool from the esophagus;
- and
- leaving the valve prosthesis in situ to treat gastro-esophageal reflux disease.
Dependencies are inferred from the claim text.