Surgical instrument positioning system, apparatus and method of use as a noninvasive anatomical reference

• US 10,463,435 B2
• Filed: 06/30/2017
• Issued: 11/05/2019
• Est. Priority Date: 06/30/2016
• Status: Active Grant

• Current Assignee: Orthogrid Systems Holdings LLC
• Original Assignee: OrthoGrid Systems, Inc.
• Inventors: Saget, Edouard, Boddington, Richard, Fry, Taylor
• Primary Examiner(s): Beccia, Christopher J
• Application Number:
  US16/312,405
• Publication Number:
  US 20190231442A1
• Time in Patent Office: 858 Days
• CPC Class Codes: A61B 17/7074 Tools specially adapted for spinal fixation operations other than for bone removal or filler handling A61B17/7062, A61B17/808, A61B17/8858 take precedence; for spinal image producing devices A61B90/36, A61B34/20; markers A61B90/39
• CPC Class Codes: A61B 2017/564 Methods for bone or joint treatment
• CPC Class Codes: A61B 2034/2048 using an accelerometer or inertia sensor
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2065 Tracking using image or pattern recognition
• CPC Class Codes: A61B 2090/376 using X-rays, e.g. fluoroscopy
• CPC Class Codes: A61B 2090/3764 with a rotating C-arm having a cone beam emitting source
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 2090/3983 Reference marker arrangements for use with image guided surgery
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/066 Superposing sensor position on an image of the patient, e.g. obtained by ultrasound or x-ray imaging
• CPC Class Codes: A61B 5/067 using accelerometers or gyroscopes
• CPC Class Codes: A61F 2/46 Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor

Abstract

The subject of this invention is a surgical instrument positioning system, method and apparatus, using an anatomical reference plane registered in a non-invasive manner and a method of intra-operative use of this instrument for joint replacements, spine, trauma fracture reductions and deformity correction and implant placement/alignment.

Claims

1. A method for intra-operatively navigating a surgical device during a surgical procedure using radiographic imaging;

the method comprising the steps of;

overlaying a primary alignment device comprised of a grid having a plurality of dimensioned radiopaque patterns over an image of a patient'"'"'s anatomy;

defining a coronal plane of the patient anatomy with reference to the dimensioned radiopaque patterns;

defining a sagittal plane of the patient'"'"'s anatomy with reference to the dimensioned radiopaque patterns;

extrapolating a third axis from the coronal plane and the sagittal plane to form a 3-dimensional reference plane;

obtaining intraoperative positional data for a surgical device with reference to the 3-dimensional reference plane;

attaching a surgical device to a secondary alignment device, wherein the secondary alignment device is comprised of a guide to provide an angle between the surgical device and the secondary alignment device, and aligning the secondary alignment device with the primary alignment device with reference to the defined coronal plane of the patient'"'"'s anatomy and the defined sagittal plane of the patient'"'"'s anatomy;

communicating the intraoperative positioning data of the surgical device to a user; and

intra-operatively navigating the surgical device with reference to the positioning data further comprising the step of attaching the primary alignment device to the C arm head of a radiographic imaging device further comprising the step moving the primary alignment device, where the primary alignment device is comprised of;

a movable inner circular section having a radio-opaque grid pattern corresponding to anatomical landmarks related to a surgical procedure, a plurality of radial fixturing grips attached to the inner section, each of said radial fixturing grips being configured to allowed planer movement of the inner circular section;

said inner circular section positioned within an outer rotatable ring wherein said outer rotatable ring further comprises a plurality of slots positioned to retain each of said radial fixturing grips.

2. The method of claim 1 wherein the intraoperative positional data for a surgical device is obtained from a plurality of reference plane axis trackers positioned on the surgical device.

3. The method of claim 1 wherein the intraoperative positional data for the surgical device is obtained from a plurality of reference plane axis trackers positioned on the primary alignment device.

4. The method of claim 1 wherein the intraoperative positional data for the surgical device is obtained by comparing the angle the angle between the reference plane axis trackers positioned on the primary alignment device and reference plane axis trackers positioned on the secondary alignment device.

5. The method of claim 1 wherein the procedure is selected from the group consisting of:

joint replacements, spine, trauma fracture reductions, deformity correction, implant placement, and implant alignment.