Heart valve with non-circular body
AssigneeRobert L. Kaster
InventorRobert L. Kaster
Life of this patent
Estimating the term…
Abstract
Heart valve including a valve body having a non-circular exterior periphery and a blood flow passage orifice through the valve body having a periphery substantially geometrically similar to the exterior periphery. A rigid occluder having a periphery slightly smaller than the internal periphery of the blood flow passage, pivots within the confines of the blood flow passage. The valve body can assume an oval, egg, kidney, or the like geometrical shape and pivots on an axis parallel or removed from the major axis of the non-circular heart valve body. The occluder pivots about pivot closed pivots and pivot open pivots, guide struts, or a T-shaped pivot post between occluding and non-occluding positions. Stop surfaces all retain the occluder in the occluding position and non-occluding position in the heart valve orifice.
Claims20
Heart valve comprising:
- a. valve body including a non-circular exterior periphery and an inner wall defining a blood flow passage having a periphery substantially geometrically similar to said exterior periphery;
- b. occluder including a periphery substantially geometrically similar to said blood flow passage;
- and
- c. means integral with said valve body supporting and guiding said occluder in said blood flow passage between a non-occluding and occluding position including bell-shaped inflow and outflow sides, pivot axis extending across one of the maximum dimensions of said non-circular body, opposed inwardly concave socket portions in said valve body at said pivot axis, and arcurate ridges on each side of said inwardly concave portions.
Heart valve comprising:
- a. valve body including a non-circular exterior periphery, an inner wall defining a blood flow passage through said valve body, and pair of opposed guide struts projecting outwardly from an inflow side of said valve body and including guide portions extending within said blood flow passage;
- b. flat, rigid occluder substantially geometrically similar to said blood flow passage and including pair of opposed spaced holes substantially along a major axis of said occluder which receive said respective guide portions of said guide struts;
- c. pivot means extending outwardly from said outflow side of said valve body;
- and
- d. restraining means extending inwardly from said inflow side of said valve body whereby said pivoting means engages with said occluder thereby providing a pivot surface during pivoting of said occluder into a non-occluding position in response to a downstream blood pressure drop across said heart valve.
Heart valve comprising:
- a. valve body including a non-circular exterior periphery and non-circular interior blood flow passage substantially geometrically similar to said exterior periphery of said valve body;
- b. flat rigid occluder including a pivot socket on a downstream-facing surface and receivable in said blood flow passage;
- c. pivot post means extending radially inward of said blood flow passage on an outflow side of said valve body and including a substantially upstream facing pivot surface pivotally received in said pivot socket;
- d. opposed pivot closed projections extending inward of said blood flow passage on an inflow side of said valve body;
- and
- e. restraining means extending inwardly on said outflow side of said valve body whereby said occluder pivots in said blood flow passage between occluding and nonoccluding position.
Dependencies are inferred from the claim text.