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US 2001/0020189 A1Published application
Sutureless gastroesophageal anti-reflux valve prosthesis and tool for peroral implantation thereof
OwnerThomas V. Taylorinventor
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Abstract
Disclosed are 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. A prosthesis is provided that comprises a cylindrical housing, a mounting ring and a one-way anti-reflux valve depending from the mounting ring. The cylindrical housing is constructed of a memory material that can be fixed in the gastroesophageal junction. The mounting ring and the anti-reflux valve are fixed within the housing.
Claims23
a sutureless, perorally insertable anti-reflux valve prosthesis, comprising:
- a cylindrical housing constructed of a memory material;
- a mounting ring fixed to the housing;
- and
- a one-way valve depending from the mounting ring within the cylindrical housing.
1 more element
An anti-reflux valve prosthesis comprising:
- a cylindrical housing having an enlarged upper end, a lower end, and an interior defined by an interior wall, the cylindrical housing constructed of a memory material having a normal cross-section, such that when a force, applied to the housing to make the cross-section smaller, is removed, the housing returns to its normal cross-section or is expandable to its normal cross-section;
- a mounting ring fixed to the wall of the upper end of the housing;
- a one-way valve depending from the mounting ring within the interior of the cylindrical housing comprising a sleeve and a plurality of longitudinal stays associated therewith;
- and
- an optional anti-inversion support having two ends, one end of which is fixed to a lower end of the one-way valve and the other end of which is fixed to the wall of the lower end of the cylindrical housing.
2 more elements
Dependencies are inferred from the claim text.