Intervertebral implant
AssigneeJoimax GmbH
InventorsClemens Barthold, Wolfgang Ries, Alexander Dürr
Life of this patent
Estimating the term…
Abstract
An intervertebral implant with a support portion (1.1) and a proximal contact portion (1.3) adjoined thereto in the longitudinal direction, is better adapted, as an intervertebral implant, to the contours of the lower and upper sides of the vertebrae that are spaced apart by the implant. An upper side (1.6) and a lower side (1.7) of the implant are configured symmetrically relative to a horizontal center plane (L-Q). In particular a height of the support portion between the transition (U) thereof to the contact portion (1.3) and a distal end face (1.2) facing away from the contact portion (1.3) are greater than the height at the transition (U) and at the distal end face (1.2).
Claims24
An intervertebral implant comprising:
- a support portion;
- and
- a proximal contact portion adjoined to the support portion in a longitudinal direction, wherein the support portion with adjoined proximal contact portion has an upper side and a lower side that are symmetrical relative to a horizontal center plane, wherein a concave transition area is formed between the support portion and the contact portion, wherein a height of the support portion between the transition area to the contact portion and a distal end face remote from the contact portion is greater than the height at the transition area and at the distal end face and the greatest height is formed in the middle between the transition area to the contact portion and the distal end face remote therefrom.
A method for introducing an intervertebral implant, the method comprising the steps of:
- providing the implant with a support portion and with a proximal contact area adjoined thereto by way of a transition area, the upper side and the lower side of the intervertebral implant being symmetrical relative to a horizontal center plane, wherein a concave transition area is formed between the support portion and the contact portion, wherein a height of the support portion between the transition area to the contact portion and a distal end face remote from the contact portion is greater than the height at the transition area and at the distal end face and the greatest height is formed in the middle between the transition area to the contact portion and the distal end face remote therefrom;
- inserting the implant minimally-invasively through an intervertebral foramen between two vertebrae as a single implant in an intervertebral space such that the implant comes to lie between the vertebrae at finite angles of both a sagittal and a frontal plane.
An intervertebral implant comprising:
- a support portion comprising a distal end surface and a longitudinal axis;
- and
- a proximal contact portion connected to the support portion in a longitudinal direction with respect to the longitudinal axis, the proximal contact portion being located opposite the distal end surface, wherein the support portion with the proximal contact portion connected thereto has an upper side and a lower side that are symmetrical relative to a horizontal center plane, wherein a concave transition area is formed between the support portion and the contact portion, wherein a height of the support portion between the transition area and the distal end surface is greater than a height at the transition area and a height at the distal end surface and a greatest height is formed in a middle of the support portion between the transition area and the distal end surface, the middle area being located at a spaced location from the concave transition area.
Dependencies are inferred from the claim text.