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Perorally insertable gastroesophageal anti-reflux valve prosthesis and tool for implantation thereof

  • US 20010020190A1
  • Filed: 03/26/2001
  • Published: 09/06/2001
  • Est. Priority Date: 12/09/1997
  • Status: Active Grant
First Claim
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1. 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 impeding the passage of gastric content, and a plurality of anchors extending radially outwardly from the mounting ring; 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.

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