Perforator
AssigneeAdeor Medical AG
InventorsFabio Von Zeppelin, Johann Fersterer
Life of this patent
Estimating the term…
Abstract
A perforator for cutting a hole in bone tissue is provided. The perforator comprises an anchor, a hole cutter configured to rotate around the anchor, and conversion means for converting rotational motion of the hole cutter around the anchor into linear motion of the hole cutter towards the material to be cut. The invention is usable to cut holes in a wide variety of materials, in particular for a perforator for cutting a hole in a skull of a human or animal. A kit of parts and a method of cutting a hole are also provided.
Claims16
A perforator for cutting a hole in bone tissue, the perforator comprising:
- an anchor comprising a screw tip that comprises one or more surface features extending outwardly and engageable with bone tissue;
- a hole cutter rotatably positioned around the anchor and engaged with the anchor via at least one of threads, a biasing assembly, or an inclined surface to convert rotational motion of the hole cutter around the anchor into linear motion of the hole cutter towards the bone tissue;
- and
- a drive tool configured to engage the anchor and to engage the hole cutter, the drive tool comprising:
- a first tool drive portion configured to engage the anchor;
- and
- a second tool drive portion configured to engage the cutter.
A kit of parts for cutting a hole in bone tissue, the kit of parts comprising:
- an anchor comprising a screw tip that comprises one or more surface features extending outwardly and engageable with bone tissue;
- a hole cutter rotatably positioned around the anchor and engaged with the anchor via at least one of threads, a biasing assembly, or an inclined surface to convert rotational motion of the hole cutter around the anchor into linear motion of the hole cutter towards the bone tissue;
- and
- a drive tool configured to engage the anchor and to engage the hole cutter, the drive tool comprising:
- a first tool drive portion configured to engage the anchor;
- and
- a second tool drive portion configured to engage the cutter.
A method of cutting a hole, the method comprising the steps of:
- securing an anchor to bone tissue, the anchor comprising a screw tip wherein the screw tip comprises one or more surface features extending outwardly and engageable with the bone tissue;
- engaging a hole cutter with the anchor via at least one of threads, a biasing assembly, or an inclined surface to convert rotational motion of the hole cutter around the anchor into linear motion of the hole cutter towards the bone tissue;
- and
- rotating the hole cutter around the anchor to urge the hole cutter into the bone tissue.
Dependencies are inferred from the claim text.