Percutaneous spinal implants and methods

• US 8,096,994 B2
• Filed: 03/29/2007
• Issued: 01/17/2012
• Est. Priority Date: 02/17/2005
• Status: Active Grant

• Current Assignee: Medtronic Europe SARL (Medtronic Plc)
• Original Assignee: Kyphon SARL (Medtronic Plc)
• Inventors: Phan, Christopher U., Arcenio, Gregory B., Kohm, Andrew C., Malandain, Hugues F.
• Primary Examiner(s): Robert, Eduardo C
• Assistant Examiner(s): CARTER, TARA ROSE E
• Application Number:
  US11/693,496
• Publication Number:
  US 20070225807A1
• Time in Patent Office: 1,755 Days
• Field of Search: 606246-249, 606/279, 606/86.R, 606/86.A, 606/99, 606/90, 623/17.11
• US Class Current: 606/86.A
• CPC Class Codes: A61B 17/7065 Devices with changeable shape, e.g. collapsible or having retractable arms to aid implantation; Tools therefor
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence

Abstract

An apparatus includes an elongate member configured to engage a spinal implant and a locking member. The locking member is disposed at a distal end portion of the elongate member. The locking member is configured to move relative to the elongate member between a first position and a second position in a direction substantially perpendicular to a center line of the elongate member. The locking member is configured to allow the distal end portion of the elongate member to move relative to the spinal implant when in the first position. The locking member is configured to couple the distal end portion of the elongate member to the spinal implant when in the second position.

Claims

1. A method, comprising:

inserting an elongate member having a center line into a body;

a locking member being disposed at the distal end portion of the elongate member;

thereafter, moving the distal end portion of the elongate member in a direction parallel to the center line toward a spinal implant, the spinal implant disposed within the body prior to the inserting, so the elongate member is brought into engagement with the spinal implant with the center line parallel to a longitudinal axis of the spinal implant;

moving the locking member relative to the elongate member between a first position and a second position in a direction radially and substantially perpendicular to the center line such that the distal end portion of the elongate member is coupled to the spinal implant.

2. The method of claim 1, wherein the spinal implant is disposed within the body between adjacent spinous processes before the inserting.

3. The method of claim 1, wherein the inserting includes inserting the elongate member percutaneously.

4. The method of claim 1, wherein the inserting includes inserting the elongate member via at least one of a lateral incision or a mid-line incision.

5. The method of claim 1, wherein the distal end portion includes disposing the distal end portion of the elongated member about a portion of the spinal implant.

6. The method of claim 1, wherein the distal end portion includes disposing the distal end portion of the elongate member within an interior portion of the spinal implant.

7. The method of claim 1, wherein the moving the locking member includes extending the locking member within an opening defined by the elongate member such that a portion of the locking member is outside of the opening, the portion fitting within an opening defined by the spinal implant.

8. The method of claim 1, wherein the moving the locking member includes actuating an actuator disposed at the distal end portion of the elongate member.

9. The method of claim 1, wherein the moving the locking member includes extending the locking member within an opening defined by the spinal implant, the method further comprising:

moving a sleeve disposed about an outer surface of the elongate member such that the locking member is retained within the opening defined by the spinal implant.

10. The method of claim 1, further comprising:

moving the elongate member after the moving the locking member such that the spinal implant is removed from the body.

11. The method of claim 1, further comprising:

changing the spinal implant from a first configuration to a second configuration after the moving the locking member.