Spacer with adjustable axial length
AssigneeBiedermann Motech GmbH
InventorsLutz Biedermann, Jürgen Harms
Life of this patent
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Abstract
A spacer for insertion between two vertebrae has a variable axial length. The spacer comprises a first sleeve-shaped shape member 1 and a second member 2 which is slidably guided within the first member in axial direction relative thereto for adjusting the overall length. The second member 2 comprises, on its outer portion facing the first member 1, an axially extending portion having ratchet notch means 18, and the first member 1 has an engagement member 23 cooperating with the ratchet notch means 18 for displacement to a desired overall length.
Claims13
A spacer for insertion between two vertebrae, said spacer having a variable axial length and comprising a sleeve-shaped first member and a second member guided within the first member to be slidable relative thereto in an axial direction thereof for adjusting an overall length,
- wherein the second member comprises an outer wall and ratchet notches provided at its outer wall facing the first member and extending in the axial direction, and
- wherein the first member comprises a wall having an engagement member, which cooperates with the ratchet notches for adjusting a desired overall length of the spacer.
Dependencies are inferred from the claim text.