SPINE SURGERY METHOD AND MOTION PRESERVING IMPLANT
First Claim
Patent Images
1. An implant comprising:
- a first member comprising;
(1) a first beam having a first limb, a mid-portion, and a second limb;
(2) a second beam having a first limb, a mid-portion, and a second limb;
(3) a first post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam, the first post having a length defined as the distance between its first and second ends; and
,(4) a second post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam, the second post having a length defined as the distance between its first and second ends;
a second member that is pivotal with respect to the first member, comprising;
(1) a first beam having a first limb, a mid-portion, and a second limb;
(2) a second beam having a first limb, a mid-portion, and a second limb;
(3) a third post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam, the third post having a length defined as the distance between its first and second ends; and
,(4) a fourth post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam, the fourth post having a length defined as the distance between its first and second ends;
wherein the first beam of the first member and the first beam of the second member define a first contact surface that contacts the endplate of a first vertebral body;
wherein the second beam of the first member and the second beam of the second member define a second contact surface that contacts the endplate of a second vertebral body;
wherein the implant is deployable, when positioned within a vertebral space between the first and second vertebral bodies, from a first non-expanded condition where the first contact surface has a first effective footprint area A1 to a second expanded condition where the first contact surface has a second effective footprint area A2, the ratio A2/A1 is at least 1.05; and
,wherein the first, second, third and fourth posts are length variable in response to a load put on the implant by the first and second vertebral bodies after deployment of the implant.
0 Assignments
0 Petitions
Accused Products
Abstract
A spinal implant may be deployable, when positioned within a vertebral space between a pair of vertebral bodies, from a first laterally non-expanded condition to a second laterally expanded condition. The spinal implant may include top beams and bottom beams separated by at least one post that is, in one embodiment, length variable in response to a load put on the implant after deployment of the implant. In an alternate embodiment, at least one post is laterally variable in response to a load put on the implant. In another embodiment, one of the posts may be centrally located.
-
Citations
29 Claims
-
1. An implant comprising:
-
a first member comprising; (1) a first beam having a first limb, a mid-portion, and a second limb; (2) a second beam having a first limb, a mid-portion, and a second limb; (3) a first post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam, the first post having a length defined as the distance between its first and second ends; and
,(4) a second post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam, the second post having a length defined as the distance between its first and second ends; a second member that is pivotal with respect to the first member, comprising; (1) a first beam having a first limb, a mid-portion, and a second limb; (2) a second beam having a first limb, a mid-portion, and a second limb; (3) a third post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam, the third post having a length defined as the distance between its first and second ends; and
,(4) a fourth post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam, the fourth post having a length defined as the distance between its first and second ends; wherein the first beam of the first member and the first beam of the second member define a first contact surface that contacts the endplate of a first vertebral body; wherein the second beam of the first member and the second beam of the second member define a second contact surface that contacts the endplate of a second vertebral body; wherein the implant is deployable, when positioned within a vertebral space between the first and second vertebral bodies, from a first non-expanded condition where the first contact surface has a first effective footprint area A1 to a second expanded condition where the first contact surface has a second effective footprint area A2, the ratio A2/A1 is at least 1.05; and
,wherein the first, second, third and fourth posts are length variable in response to a load put on the implant by the first and second vertebral bodies after deployment of the implant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13)
-
-
11. An implant comprising:
-
a first member comprising; (1) a first beam having a first limb, a mid-portion, and a second limb; (2) a second beam having a first limb, a mid-portion, and a second limb; (3) a first post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam, the first post having a length defined as the distance between its first and second ends; and
,(4) a second post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam, the second post having a length defined as the distance between its first and second ends; a second member that is pivotal with respect to the first member, comprising; (1) a first beam having a first limb, a mid-portion, and a second limb; (2) a second beam having a first limb, a mid-portion, and a second limb; (3) a third post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam, the third post having a length defined as the distance between its first and second ends; and
,(4) a fourth post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam, the fourth post having a length defined as the distance between its first and second ends; wherein the first beam of the first member and the first beam of the second member define a first contact surface that contacts the endplate of a first associated vertebral body; wherein the second beam of the first member and the second beam of the second member define a second contact surface that contacts the endplate of a second associated vertebral body; wherein the implant is deployable, when positioned within a vertebral space between the first and second vertebral bodies, from a first non-expanded condition where the first contact surface has a first effective footprint area A1 to a second expanded condition where the first contact surface has a second effective footprint area A2, the ratio A2/A1 is at least 1.05; and
,wherein at least one of the first, second, third and fourth posts is length variable in response to a load put on the implant by the first and second associated vertebral bodies after deployment of the implant. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. An implant comprising:
-
a first member comprising; (1) a first beam having a first limb, a mid-portion, and a second limb; (2) a second beam having a first limb, a mid-portion, and a second limb; (3) a first post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam; and
,(4) a second post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam; a second member that is pivotal with respect to the first member, comprising; (1) a first beam having a first limb, a mid-portion, and a second limb; (2) a second beam having a first limb, a mid-portion, and a second limb; (3) a third post having a first end operatively connected to the first limb of the first beam and a second end operatively connected to the first limb of the second beam; and
,(4) a fourth post having a first end operatively connected to the second limb of the first beam and a second end operatively connected to the second limb of the second beam; wherein the first beam of the first member and the first beam of the second member define a first contact surface that contacts the endplate of a first associated vertebral body; wherein the second beam of the first member and the second beam of the second member define a second contact surface that contacts the endplate of a second associated vertebral body; wherein the implant is deployable, when positioned within a vertebral space between the first and second vertebral bodies, from a first non-expanded condition where the first contact surface has a first effective footprint area A1 to a second expanded condition where the first contact surface has a second effective footprint area A2, the ratio A2/A1 is at least 1.05; and
,wherein at least one of the first, second, third and fourth posts is laterally variable in response to a lateral load put on the implant by the first and second associated vertebral bodies after deployment of the implant. - View Dependent Claims (28, 29)
-
Specification