Method for inserting and positioning an artificial disc
First Claim
1. An intervertebral prosthetic disc comprising:
- a first endplate having a plurality of protrusions for attaching to a first adjacent vertebrae and an extension portion extending towards a second adjacent vertebrae, the extension portion being spaced apart from a base of the first endplate when assembled;
a second endplate having a plurality of protrusions for attaching to the second adjacent vertebrae and an extension portion extending towards the first adjacent vertebrae, the extension portion being spaced apart from a base of the second endplate when assembled;
a resilient member having an upper portion and a lower portion;
a slider plate having an upper and lower surface positioned and enclosed within a first cavity in the upper portion of the resilient member, wherein the upper surface of the slider plate is configured to contact a lower surface of the extension portion of the first endplate; and
,wherein the extension portion of the first endplate is adapted to fit within the first cavity in the upper portion of the resilient member and the extension portion of the second endplate is adapted to fit within a second cavity in the lower portion of the resilient member,wherein the extension portion of the first endplate engages with the upper surface of the slider plate to allow translation or rotation of the extension portion relative to the slider plate,wherein a length of extension portion of the first endplate is smaller than a length of the slider plate.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for inserting an intervertebral artificial disc is provided with the intervertebral disc including a first endplate having a plurality of protrusions for attaching to an adjacent vertebrae and an extension portion extending towards a second adjacent vertebrae. A second endplate is provided with a plurality of protrusions for attaching to a second adjacent vertebrae and an extension portion extending towards the first adjacent vertebrae. A flexible member having an upper portion and a lower portion and a slider plate positioned within the upper portion of the flexible member is also provided. The extension portion of the first endplate is adapted to fit within a first cavity in the upper portion of the flexible member and the extension portion of the second endplate is adapted to fit within a second cavity in the lower portion of the flexible member.
-
Citations
13 Claims
-
1. An intervertebral prosthetic disc comprising:
-
a first endplate having a plurality of protrusions for attaching to a first adjacent vertebrae and an extension portion extending towards a second adjacent vertebrae, the extension portion being spaced apart from a base of the first endplate when assembled; a second endplate having a plurality of protrusions for attaching to the second adjacent vertebrae and an extension portion extending towards the first adjacent vertebrae, the extension portion being spaced apart from a base of the second endplate when assembled; a resilient member having an upper portion and a lower portion; a slider plate having an upper and lower surface positioned and enclosed within a first cavity in the upper portion of the resilient member, wherein the upper surface of the slider plate is configured to contact a lower surface of the extension portion of the first endplate; and
,wherein the extension portion of the first endplate is adapted to fit within the first cavity in the upper portion of the resilient member and the extension portion of the second endplate is adapted to fit within a second cavity in the lower portion of the resilient member, wherein the extension portion of the first endplate engages with the upper surface of the slider plate to allow translation or rotation of the extension portion relative to the slider plate, wherein a length of extension portion of the first endplate is smaller than a length of the slider plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An implant comprising:
-
a first endplate having a plurality of protrusions for attaching to a first adjacent vertebrae and an extension portion extending towards a second adjacent vertebrae, the extension portion being spaced apart from a base of the first endplate when assembled; a second endplate having a plurality of protrusions for attaching to the second adjacent vertebrae and an extension portion extending towards the first adjacent vertebrae, the extension portion being spaced apart from a base of the second endplate when assembled; a resilient member having an upper portion and a lower portion; a slider plate having an upper and lower surface positioned and enclosed within a first cavity in the upper portion of the resilient member, wherein the upper surface of the slider plate is configured to contact a lower surface of the extension portion of the first endplate; and
,wherein the extension portion of the first endplate is adapted to fit within the first cavity in the upper portion of the resilient member and the extension portion of the second endplate is adapted to fit within a second cavity in the lower portion of the resilient member, wherein the extension portion of the first endplate engages with the slider plate to allow translation of the first endplate relative to the slider plate, wherein a length of the extension portion of the first endplate is smaller than a length of the slider plate.
-
Specification