Interspinous devices and methods of use
AssigneeSDGI Holdings, Inc.
InventorsAurelien Bruneau, Eric Lange, Randall Allard, Kent Anderson
Life of this patent
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Abstract
The present application is directed to devices and methods for spacing apart spinous processes. In one embodiment, the device includes a body having a central portion that separates first and second sections. The body is constructed of a combination of an elastic material and a bio-absorbable material. When initially implanted within a patient, the bio-absorbable material affects the stiffness of the device. The device stiffness changes to that of the elastic material as the bio-absorbable material is absorbed by the body.
Claims23
A device to space first and second spinous processes comprising:
- an elastic material positioned within a central portion that is positioned between the first and second spinous processes;
- and
- a bio-absorbable material surrounding the elastic material;
- the elastic material and bio-absorbable material acting in combination during an initial time period and comprising a first stiffness to space the first and second spinous processes, and comprising a second stiffness property after the initial time period to space the first and second spinous processes.
A device to space first and second spinous processes within a body, the device comprising:
- an elastic material positioned within a central portion between the first and second spinous processes;
- and
- a bio-absorbable material surrounding the elastic material, the bio-absorbable material being absorbed into the body after an initial time period of being implanted within the body;
- the elastic material and bio-absorbable material together providing a stiffness during the initial time period, and the elastic material alone providing the stiffness after the initial time period.
A device to space first and second spinous processes within a body, the device comprising:
- a bio-absorbable material comprising a holding section positioned within a central portion between the first and second spinous processes, the holding section varying between a first shape when the first and second spinous processes are in a first position and a second shape when the first and second spinous processes are in a second position;
- and
- an elastic material confined within the holding section and having a shape determined by the holding section, the elastic material having a first stiffness when the holding section has a first shape, and a second stiffness when the holding section has a second shape;
- a stiffness of the device being defined by the bio-absorbable material and the elastic material during an initial time period, and defined by the elastic material after the initial time period.
A device to space first and second spinous processes comprising:
- an elastic material;
- a bio-absorbable material surrounding at least a portion of the elastic material, the elastic material and the bio-absorbable material comprising a shape to position the elastic material between the first and second spinous processes;
- the elastic material and bio-absorbable material acting in combination during an initial time period and comprising a first stiffness to space the first and second spinous processes, and comprising a second stiffness property after the initial time period to space the first and second spinous processes.
Dependencies are inferred from the claim text.