Surgical knife and tools adapted for simplified blade removal
AssigneeScalpal LLC
InventorEliot Robert Gitman
Life of this patent
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Abstract
A knife (10) has a handle (15) with a mount (16) for affixing a removable blade (11). A concave surface (17) of the mount supports an elongate protrusion (18) for engaging a complementary slot (12) in the blade and reaches a landing (20) rearward of the tip that is exposed when the blade is mounted on the handle with a surface of the blade being completely supported by the concave surface. A channel (25) in the landing is dimensioned such that a rearmost part (26) thereof remains exposed when the blade is mounted on the handle. The blade is removed by inserting a curved lever (30) into the channel underneath a rearmost part of the blade and swiveling the lever so as to disengage the blade from the elongate protrusion.
Claims19
A knife (10) adapted for receiving a removable blade (11), said knife comprising:
- a handle (15) having a mount (16) for affixing the blade, said mount having a concave surface (17) supporting an elongate protrusion (18) for engaging a complementary slot (12) in the blade, the concave surface reaching a landing (20) located sufficiently rearward of the tip so as to remain exposed when the blade is mounted on the handle with a surface of the blade being completely supported by said concave surface, and
- a channel (25) in said landing dimensioned such that a rearmost part (26) thereof remains exposed when the blade is mounted on the handle;
- thereby allowing the blade to be removed by inserting a curved lever (30) into the channel underneath a rearmost part of the blade and swiveling the lever so as to disengage the blade from the elongate protrusion.
A blade removal tool (40, 50) for use with a knife (10, 100) having a blade (11), the blade removal tool having a closed receptacle (41, 51) supporting a claw (45, 55) that is adapted to engage an edge (13) of the blade for removing it from the knife when the knife is inserted into the receptacle.
Dependencies are inferred from the claim text.