US 6,440,143 B2Granted

Hand-held device for preparation of a skin graft by tangential excision of layers of tissue

OwnerKlaus Kasteninventor

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Abstract

Hand-held appliance for preparation of an excised skin graft, that is placed upon a plane surface, by tangential excision of tissue below the epidermis to produce a trimmed skin graft of desired remaining tissue layers and thickness with a blade that is held between two holding rods, that can be placed on a plane surface and that is held in a height-adjustable axis parallel to the surface. The end regions of the rods are shaped so that the distance between the axis and the contact surface of the edge of the end regions to the surface changes at least by sections, while the minimal distance and the maximal distance define the lowest and the highest cutting plane, respectively, so that the distance of the cutting plane is defined by the operating angle between the plane of the rods and the surface.

Claims11

Dependent claims

A hand-held appliance for preparation of an excised skin graft that is placed upon a surface, by tangential excision of tissue below the epidermis to produce a trimmed skin graft of desired remaining tissue layers and thickness, said appliance comprising:

a grip element provided with two holding rods lie in a plane and that can be placed on the surface when said appliance is in use;
and a blade mounted between said holding rods in a manner to be pivotally movable relative to said holding rods about an axis, wherein:
said grip element is orientable to place said plane at a selected angle relative to the surface;
each of said holding rods has an end region delimited by an edge that bears on the surface when said appliance is in use and that is shaped so that different points along said edge are at different distances from the axis such that a variation in the selected angle when said edges bear against the surface causes a corresponding variation in the distance between said blade and the surface for cutting the excised skin graft to a selected thickness.

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Dependencies are inferred from the claim text.