Instrument for holding and inserting the tibia plate for an endo-knee prosthesis having sliding surfaces
AssigneeWaldemar Link GmbH & Co. KG
InventorArnold Keller
Life of this patent
Estimating the term…
Abstract
A prosthesis instrument for implanting a pair of separate tibia plates of an endo-knee prosthesis and having a pair of supports with tibia plate locating rods and clamps for rigidly supporting the tibia plates and laterally adjustable for establishing a predetermined implanted relationship thereof.
Claims13
A prosthesis instrument for holding and inserting a pair of tibia plate members for an endo-knee prosthesis having sliding surfaces, comprising an instrument support handle, a pair of tibia plate support means on the support handle for rigidly supporting a pair of tibia plate members respectively in predetermined lateral relationship for holding and inserting them for said prosthesis, the pair of tibia plate support means being relatively laterally adjustable for adjusting the said predetermined lateral relationship of the said tibia plate members, and reference edges disposed at fixed angles to the pair of tibia plate support means in the direction in which they are relatively laterally adjusted.
A prosthesis instrument for holding and inserting a pair of tibia plate members for an endo-knee prosthesis having sliding surfaces, comprising an instrument support handle, a pair of tibia plate support means mounted on the support handle for rigidly supporting a pair of tibia plate members respectively in predetermined lateral relationship for holding and inserting them for said prosthesis, the pair of tibia plate support means being relatively laterally adjustable for adjusting the said predetermined lateral relationship of the said tibia plate members, and a scale for determining the relative lateral position of the pair of tibia plate support means.
A prosthesis instrument for holding and inserting a pair of tibia plate members for an endo-knee prosthesis having sliding surfaces, comprising an instrument support handle and a pair of tibia plate support means on the support handle for rigidly supporting a pair of tibia plate members respectively in predetermined lateral relationship for holding and inserting them for said prosthesis, the pair of tibia plate support means being relatively laterally adjustable for adjusting the said predetermined lateral relationship of the said tibia plate members, and each of said tibia plate support means comprising an elongated locating rod for supporting a tibia plate member thereon and a clamp adjustable laterally of the axis of the locating rod for clamping a tibia plate member therebetween.
In a prosthesis instrument for holding and inserting a pair of tibia plate members for an endo-knee prosthesis having sliding surfaces, comprising an instrument body with a support handle and a pair of tibia plate supports mounted on the support handle, holding means mounted on each tibia plate support for rigidly supporting a tibia plate member, for rigidly supporting with both holding means a pair of tibia plate members in predetermined lateral relationship for holding and inserting them for said prosthesis, the instrument body having first adjustment means for laterally adjusting the pair of tibia plate supports for adjusting the said predetermined lateral relationship of the said tibia plate members, the improvement wherein each tibia plate member holding means comprises a first longitudinally extending support rod receivable in a longitudinally extending bore in a tibia plate member, a second laterally extending support rod lying in substantially the same plane as the first rod, and second adjustment means for laterally adjusting the second support rod into a laterally extending bore in the tibia plate member for rigidly supporting the tibia plate member with the first and second support rods.
Dependencies are inferred from the claim text.