Spine Retractor and Distractor Device

• US 20080300465A1
• Filed: 09/08/2006
• Published: 12/04/2008
• Est. Priority Date: 09/08/2005
• Status: Active Grant

• Current Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Original Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Inventors: Feigenwinter, Gregor, Lechmann, Beat, Pavlov, Paul W., Buerki, Roger
• Granted Patent: US 8,911,364 B2
• Time in Patent Office: Days
• US Class Current: 600/201
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• CPC Class Codes: A61B 17/8866 for gripping or pushing bones, e.g. approximators joint distractors A61B17/025
• CPC Class Codes: A61B 2017/0256 for the spine

Abstract

A spine retractor and distractor device comprises spinal process clamps and a retractor assembly, which may be rotatably coupled with the spinal process clamps. The retractor assembly may include a retractor ring, or frame, and a plurality of retractor blades adjustably coupled to the frame, e.g., by clamps. The spinal process clamps can maintain a grip on the spinal processes of the patient, and distraction pliers may be used to impart a distraction force on the spinal process clamps to distract the spinal segments. Additionally, other components, features, or tools, e.g., a light source and/or a camera, can be mounted on the instrument.

Claims

1. An kit for retraction and distraction of a spine, comprising:

at least two spinal processes clamps, each clamp configured to attach to spinal processes of a spine;

a retractor ring, the retractor ring couplable and angularly adjustable with the spinal processes clamps; and

a retractor blade couplable to the retractor ring.

2. The kit according to claim 1, further comprising a distraction tool configured to contact the spinal processes clamps, and provide a distraction force to the spinal processes.

3. The kit according to claim 1, further comprising a distraction tool configured to contact and apply a distraction force to the spinal processes.

4. The kit according to claim 1, further comprising one or more fixation clamps configured to rotatably couple the one or more retractor blades to the retractor ring.

5. The kit according to claim 1, wherein the retractor ring has a fixed position with respect to the patient, and functions to retract soft tissue to provide access to a desired portion of the spine.

6. The kit according to claim 1, further comprising a light source and a camera.

7. A method for performing spinal retraction and distraction, the method comprising the steps of:

providing at least two spinal processes clamps securing each spinal processes clamps to one or more spinal processes of a patient;

attaching a retractor ring to the spinal processes clamps;

retracting soft tissue around the spinal processes to expose a spine segment, wherein the retracting comprises engaging the soft tissue with one or more retractor blades coupled to the retractor ring; and

distracting the spinal segment using a distraction tool engaged with at least one spinal processes clamps, the spinal processes or both.

8. A method according to claim 7, further comprising adjusting the angular relationship between the spinal processes clamps and the retractor ring.

10. A system for performing spinal retraction and distraction, the system comprising:

at least two spinal processes clamps, wherein each spinal processes clamp is secured to one or more spinal processes of a patient;

a retractor ring attached to the spinal processes clamps;

at least one retractor blade coupable to the retractor ring engaging retracting soft tissue around the spinal processes to expose a spine segment; and

a distraction tool engaged with at least one spinal processes clamp, the spinal processes or both for applying a distracting force to the spinal segment.