Tamp assembly
AssigneeDePuy Products, Inc.
InventorsJohn Naybour, David Moore
Life of this patent
Estimating the term…
Abstract
A tamp assembly for use in configuring bone cavity filler material within a bone cavity, in preparation for receiving an implant, includes a distal tamp portion which has a substantially constant cross-section over at least part of its length. A proximal tamp portion has a through bore extending through it with a size which is such that the proximal tamp portion is a sliding fit over the distal tamp portion. The proximal tamp portion has an exterior tamping surface extending from the through bore which faces generally towards the distal tamp portion. The assembly includes a hammer for transmitting impact to the bone cavity filler material which is contacted by the tamping surface of the proximal tamp portion.
Claims12
A tamp assembly for use in configuring bone cavity filler material within a bone cavity, in preparation for receiving an implant, which comprises:
- a distal tamp portion which has a substantially constant cross-section over at least part of its length,
- a proximal tamp portion which has a through bore extending through it with a size which is such that the proximal tamp portion is a sliding fit over the distal tamp portion, and which has an exterior tamping surface extending from the through bore which faces generally towards the distal tamp portion,
- a hammer for transmitting impact to the bone cavity filler material which is contacted by the exterior tamping surface of the proximal tamp portion, and
- a cavity-end tamp portion having a through bore extending through it, whose size which is such that the cavity-end tamp portion is a sliding fit over the distal tamp portion, and which has a mould surface facing into the bone cavity when the cavity-end tamp portion is in use, to shape the bone cavity filler material to receive an implant at the exposed end of the cavity.
A tamp assembly for use in configuring bone cavity filler material within a bone cavity, in preparation for receiving an implant, which comprises:
- a distal tamp portion which has a substantially constant cross-section over at least part of its length,
- a proximal tamp portion which has a through bore extending through it with a size which is such that the proximal tamp portion is a sliding fit over the distal tamp portion, and which has an exterior tamping surface extending from the through bore which faces generally towards the distal tamp portion, and
- a hammer for transmitting impact to the bone cavity filler material which is contacted by the exterior tamping surface of the proximal tamp portion,
- a guide shaft which is aligned with the distal tamp portion, the hammer having a through bore extending through it with a size which is such that it is a sliding fit over the guide shaft, and
- a cap on the guide shaft with a impact surface facing along the guide shaft towards the proximal tamp portion, onto which impact can be directed to loosen the assembly from within the bone cavity.
Dependencies are inferred from the claim text.