US4306319A — Heart valve with non-circular body

Claim 1

Independent Claim 110 words

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.

Claim 2

Dependent Claim 110 words

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.

Claim 3

Dependent Claim 78 words

The heart valve of claim 1 wherein said valve body comprises opposed pivot closed pivots projecting inwardly on each side of said exterior periphery adjacent said inflow side and including a closed position stop surface, a pivot edge, and an open position stop surface and opposed pivot open pivots projecting inward on each side of said exterior periphery adjacent said outflow side and including a closed position stop surface, a pivot edge, and an open position stop surface.

Claim 4

Dependent Claim 48 words

The heart valve of claim 2 wherein said occluder comprises a rigid body, common major axis across said exterior periphery and a sharply rounded portion about a concave notch at each end of said major axis whereby said sharply rounded portion defines a pivot axis of said occluder.

Claim 5

Dependent Claim 46 words

The heart valve of claim 2 wherein said occluder comprises a rigid body, common major axis across said exterior, and a sharply rounded portion about concave notches at each end of said major axis whereby said sharply rounded position defines a pivot axis of said occluder.

Claim 6

Dependent Claim 27 words

The heart valve of claim 4 wherein said valve body comprises a pivot stop projection extending inwardly on said inflow side and including a downstream-facing stop surface.

Claim 7

Dependent Claim 24 words

The heart valve of claim 1 comprising spaced flanges extending outwardly from said valve body whereby a surgical suturing ring secures between said flanges.

Claim 8

Dependent Claim 59 words

The heart valve of claim 4 wherein said exterior periphery of said valve body includes maximum dimensions at right angles to each other, one of said maximum dimensions being the greater of the two and said pivot means including pivot ends defining a pivot axis whereby said pivot axis is parallel to said greater dimension across said valve body.

Claim 9

Dependent Claim 21 words

The heart valve of claim 7 wherein said pivot axis is substantially coextensive with said greater dimension across said valve body.

Claim 10

Dependent Claim 24 words

The heart valve of claim 7 wherein said pivot axis is substantially parallel to but spaced from said greater dimension across said valve body.

Claim 11

Dependent Claim 17 words

The heart valve of claim 7 wherein the ratio of said maximum dimensions does not exceed 0.9.

Claim 12

Dependent Claim 12 words

The heart valve of claim 1 wherein said non-circular periphery is oval.

Claim 13

Dependent Claim 12 words

The heart valve of claim 1 wherein said non-circular periphery is elliptical.

Claim 14

Dependent Claim 147 words

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.

Claim 15

Dependent Claim 147 words

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.

Claim 16

Dependent Claim 45 words

The heart valve of claim 13 wherein each of said guide struts comprise in order from said valve body of an open position stop surface, a rounded pivot edge, a downstream facing closed position stop surface, a perpendicular guide portion and an oblique guide portion.

Claim 17

Dependent Claim 31 words

The heart valve of claim 14 wherein said pivot means comprises in order from said valve body a closed position stop surface, a rounded pivot edge, and a pivot stop surface.

Claim 18

Dependent Claim 19 words

The heart valve of claim 14 wherein said restraining means comprises a closed position stop including a stop surface.

Claim 19

Dependent Claim 129 words

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.

Claim 20

Dependent Claim 129 words

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.

Claim 21

Dependent Claim 46 words

The heart valve of claim 17 wherein said pivot post means comprises a T-shaped pivot post, a shank portion, and a cross member including an upstream projecting lip, an upstream facing pivot closed stop surface, an upstream facing pivot edge, and an open position stop surface.

Claim 22

Dependent Claim 23 words

The heart valve of claim 17 wherein said restraining means comprises a pivot closed stop including a downstream facing closed position stop surface.

Claim 23

Dependent Claim 42 words

The heart valve of claim 17 wherein said occluder includes parallel upstream and downstream facing surfaces, a wedge shaped depression in said downstream facing surface, said pivot socket being rounded, depression and elongated, and said major axis coinciding with said elongated depression.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1984-12-21	1985-06-22	1985-12-22	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1988-12-21	1989-06-22	1989-12-22	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1992-12-21	1993-06-22	1993-12-22	$7700.00	Window Closed / Lapsed

Heart valve with non-circular body

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