Ring punch for harvesting mucosal grafts
AssigneeHelmut Zepf Medizintechnik GmbH
InventorPatrick ZEPF
Life of this patent
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Abstract
A ring punch for harvesting mucosal grafts with an outer cylindrical sleeve having an outer wall, a first outer end, a second outer end, a first longitudinal axis and a first inner diameter and an inner cylindrical sleeve with an inner wall, a first inner end, a second inner end, a second longitudinal axis and a second inner diameter. The inner cylindrical sleeve is arranged concentrically in the outer cylindrical sleeve. A first cutting edge is arranged on the first outer end of the outer cylindrical sleeve and a second cutting edge is arranged on the first inner end of the inner cylindrical sleeve. A radially protruding projection is spaced from the first outer end of the outer cylindrical sleeve by a distance of two to four millimeters at least in sections on an outer surface of the outer wall.
Claims19
A ring punch for harvesting mucosal grafts, the ring punch comprising:
- an outer cylindrical sleeve with an outer wall, a first outer end, a second outer end, a first longitudinal axis and a first inner diameter;
- an inner cylindrical sleeve with an inner wall, a first inner end, a inner second end, a second longitudinal axis and a second inner diameter, wherein the inner cylindrical sleeve is arranged concentrically in the outer cylindrical sleeve, and wherein a first cutting edge is arranged on the first outer end of the outer cylindrical sleeve and a second cutting edge is arranged on the first inner end of the inner cylindrical sleeve;
- and
- a radially protruding projection that is spaced from the first outer end of the outer cylindrical sleeve by a distance of at least two millimeters (2 mm) and at most four millimeters (4 mm), the radially protruding projection is arranged at least in sections on an outer surface of the outer wall of the outer cylindrical sleeve.
Dependencies are inferred from the claim text.