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US 2012/0239089 A1Published application
Interspinous process implant and method of implantation
AssigneeKyphon SARL
InventorsCalin Druma, Bruce Chabansky
Life of this patent
Estimating the term…
Abstract
Medical devices for the treatment of spinal conditions are described herein. The medical device includes a sleeve, and optionally a bumper, that is disposed between adjacent spinous processes and has a first retention member and a second retention member, which may be locked together.
Claims20
A device, comprising:
- a first retention member having a proximal face and a distal face and a sleeve extending from a medial portion of the proximal face, the distal face defining a distal inner edge adjacent to the medial portion;
- a second retention member having a core extending from a medial portion thereof wherein the core is adapted to be disposed in the outer sleeve;
- and
- at least one lug disposed on an end of the sleeve wherein the lug is adapted to engage the distal inner edge.
1 more element
A method of implanting a medical device into an interspinous space defined between a superior spinous process and an inferior spinous process, comprising:
- providing a first retention member having a sleeve;
- inserting the sleeve through an interspinous space from a distal side of the superior spinous process and the inferior spinous process so that the first retention member is adjacent a distal side of the superior spinous process and a distal side of the inferior spinous process;
- providing a second retention member having a core element;
- inserting the core element into the sleeve from a proximal side of the superior spinous process and a proximal side of the inferior spinous process;
- and
- locking the distal retention member with respect to the proximal retention member wherein a major axis of the proximal retention member and a major axis of the distal retention member extend in directions that are substantially parallel to each other and to a sagittal plane and a coronal plane.
3 more elements
A device, comprising:
- a first retention member having a first proximal face and a first distal face and a sleeve extending from a first medial portion of the first proximal face, the first distal face defining a distal inner edge adjacent to the first medial portion;
- a second retention member having a second proximal face and a second distal face and a core extending from a second medial portion thereof wherein the core is adapted to be disposed in the outer sleeve and the core includes an annular distal portion;
- and
- a plurality of lugs disposed about the annular distal portion of the core, wherein the lugs are adapted to engage the distal inner edge.
1 more element
Dependencies are inferred from the claim text.