1
Jerome J Klawitter, Harry W Cromie: Suture rings for heart valves. Hemex, Fitch Even Tabin & Flannery, August 20, 1985: US04535483 (312 worldwide citation)

Suture rings are provided for heart valves having surrounding stiffening protrusions that are either integral parts of the heart valve bodies or are rigid rings held in interference fit within peripheral grooves of heart valve bodies. Metal retainer rings engage the stiffening protrusions to lock th ...


2
Jerome J Klawitter: Heart valves having edge-guided occluders. Hemex, Fitch Even Tabin Flannery & Welsh, February 15, 1983: US04373216 (207 worldwide citation)

Heart valves having valve members which are guided between their open and closed positions by projections extending inward from the annular body and interengaging with complementary notches in the peripheries of the occluders. Protuberances associated with the projections cooperate to define the piv ...


3
Richard L Martin: Two-piece heart valve holder/rotator. Hemex Scientific, Fitch Even Tabin & Flannery, August 4, 1987: US04683883 (83 worldwide citation)

A two-piece heart valve holder engageable by a separate handle for positioning and rotating the heart valve. The holder includes a cylindrically-shaped plug member that has a recessed shoulder at one end and a V-shaped seat at the other end. Two passages extend through the plug member from the one e ...


4
Jerome J Klawitter: Heart valve prosthesis. Hemex, Fitch Even Tabin Flannery & Welsh, May 11, 1982: US04328592 (39 worldwide citation)

Double-leaflet heart valves having improved flow through the orifice defined by an annular valve body include a pair of leaflets which may be arcuate or flat in cross section. Guides protrude oppositely from the leaflets and are received in complementary depressions in the interior wall surface of a ...


5
Jerome J Klawitter: Heart valve having ear guided occluders. Hemex, Fitch Even Tabin & Flannery, June 5, 1984: US04451937 (39 worldwide citation)

Heart valve prostheses have annular valve bodies with central passageways and valve members supported for pivotal and translational movement between open and closed positions. The occluders, which may be either of a bileaflet or single occluder design, are supported within the bodies by pairs of ear ...


6
Jerome J Klawatter: Heart valve prosthesis. Hemex, Fitch Even Tabin Flannery & Welsh, January 5, 1982: US04308624 (32 worldwide citation)

Single or double-leaflet heart valves include leaflet valve members which are arcuate in cross section, preferably being essentially a portion of the wall of a circular tube. Generally spherical sectors protrude oppositely from the leaflets and are received in elongated, complementary depressions in ...


7
Jerome J Klawitter: Heart valve with dog-leg pivot. Hemex, Fitch Even Tabin & Flannery, April 24, 1984: US04443894 (32 worldwide citation)

A heart valve having a pair of leaflets which are guided between their open and closed positions by guides extending outward and received in dog-leg shaped depressions. The depressions each have a downstream section, which angles outward from a centerline plane of the valve body and a connected vert ...


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Klawitter Jerome John: Heart valve prosthesis.. Hemex, February 11, 1981: EP0023797-A1 (16 worldwide citation)

Single or double-leaflet heart valves (11) having improved flow (19) through the orifice defined by an annular valve (13) body include a pair of leaflets (15) which may be arcuate or flat in cross section. Guides (35) protrude oppositely from the leaflets and are received in complementary depression ...


10
Jerome J Klawitter: Heart valve with pivoted occluder. Hemex, Fitch Even Tabin Flannery & Welsh, April 27, 1982: US04326304 (15 worldwide citation)

A heart valve has an elliptical occluder mounted for pivoting in an annular heart valve body with a circular passageway between an open position to allow blood flow through the passageway and a closed position to block blood flow. A pair of ears extend from the occluder into a pair of opposed pie-sh ...