Tissue cassette with a living hinge
First Claim
1. A tissue cassette comprising:
- a) an open-topped, perforated base member adapted to receive a tissue specimen;
b) a perforated lid member adapted to cover the base member and be secured thereto in a closed position;
c) a snap action hinge joining the base member to the perforated lid; and
d) a living hinge joining said base member to said perforated lid, said living hinge having a first end attached to said lid member, a second end attached to said base member, a flat first surface and a curved second surface whereby said hinge having a thickness that varies across a length of said hinge, said first surface of said hinge being offset from an upper surface of said base member wherein said offset permits a breaking away of said living hinge and said snap action hinge flush with a surface of said base member.
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Accused Products
Abstract
A tissue cassette for holding biological tissue specimens. The tissue cassette includes an open topped, perforated base member adapted to receive a tissue specimen, a perforated lid member adapted to cover the base member and a snap action hinge joining the base member to the perforated lid. The snap action member can be J-shaped, sinusoidal shaped or L-shaped. Further, the cassette can include a living hinge for joining the base member to the open topped base member. The living hinge includes a first end attached to the lid member, a second end attached to the base member, a flat first surface and a curved second surface, whereby the hinge thickness varies across the length of the hinge and the thinnest portion of the hinge is positioned between the hinge ends. The curved surface can be concave shaped and the hinge can have a constant width from the first end to an intermediate section and decreasing width from the intermediate section to the second end. The intermediate section on the hinge second end is offset to permit the breaking away of the hinges flush with the base member surface.
117 Citations
19 Claims
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1. A tissue cassette comprising:
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a) an open-topped, perforated base member adapted to receive a tissue specimen; b) a perforated lid member adapted to cover the base member and be secured thereto in a closed position; c) a snap action hinge joining the base member to the perforated lid; and d) a living hinge joining said base member to said perforated lid, said living hinge having a first end attached to said lid member, a second end attached to said base member, a flat first surface and a curved second surface whereby said hinge having a thickness that varies across a length of said hinge, said first surface of said hinge being offset from an upper surface of said base member wherein said offset permits a breaking away of said living hinge and said snap action hinge flush with a surface of said base member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A tissue cassette comprising:
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a) an open-topped, perforated base member adapted to receive a tissue specimen; b) a perforated lid member adapted to cover the base member and be secured thereto in a closed position; and c) at least one living hinge joining said lid member to said open-topped base member, said living hinge having a first end attached to said lid member and a second end attached to said base member, and a flat first surface and a curved second surface, whereby said hinge having a thickness that varies across a length of the hinge, said hinge having a thinnest portion positioned between said hinge ends, said first surface of said hinge being offset from an upper surface of said base. - View Dependent Claims (12, 13)
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14. A tissue cassette comprising:
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a) an open-topped, perforated base member adapted to receive a tissue specimen; b) a perforated lid member adapted to cover the base member and be secured thereto in a closed position, said lid member having a ledge; and c) a snap action hinge joining the base member to the perforated lid member, wherein said snap action hinge includes a curved sinusoidal shaped body having a first end, a second end and a lower surface, said first end attached to said lid member ledge and said second end attached to said base, and said lower surface of said first end of said snap action hinge body is flush with a lower surface of said ledge and said lower surface of said second end of said snap action hinge is flush with a lower surface of said base.
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15. A tissue cassette comprising:
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a) an open-topped, perforated base member adapted to receive a tissue specimen; b) a perforated lid member adapted to cover the base member and be secured thereto in a closed position; and c) a snap action hinge joining the base member to the perforated lid member, said snap action hinge comprising an L-shaped body having a first leg, a second leg and a leg connecting section having a V-shaped notch, said first leg joined together to said second leg by said leg connecting section;
a lid connecting section having a triangular-shaped cross-section; and
a base connecting section having a rectangular-shaped cross-section, said first leg attached to said lid by said lid connecting section and said second leg attached to said base by said base connecting section, wherein said first leg and said second leg arm thicker than a top section of said lid connecting section and said base connecting section.
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16. A tissue cassette comprising:
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a) an open-topped, perforated base member adapted to receive a tissue specimen; b) a perforated lid member adapted to cover the base member and be secured thereto in a closed position; and c) at least one living hinge joining said lid member to said open-topped base member, said living hinge having a first end attached to said lid member and a second end attached to said base member, and a flat first surface and a curved concave-shaped second surface, wherein said hinge first surface being offset from an upper surface of said base member and said hinge having a thickness that varies across a length of said hinge, said hinge having a thinnest portion positioned between said hinge ends, and said hinge having a constant width from said first end to an intermediate section and a decreasing width from said intermediate section to said second end.
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17. A tissue cassette comprising:
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a) an open-topped, perforated base member adapted to receive a tissue specimen; b) a perforated lid member adapted to cover the base member and be secured thereto in a closed position; and c) at least one living hinge joining said lid member to said open-topped base member, said living hinge having a first end attached to said lid member and a second end attached to said base member, and said living hinge having a first flat upper surface and a second lower surface positioned below said first upper surface, at least a portion of said second surface being curved, said first upper surface of said hinge being offset from an upper surface of said base member. - View Dependent Claims (18, 19)
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Specification