# US 11,998,242 B2 · Systems and methods for planning, performing, and assessing spinal correction during surgery

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- Number: US 11,998,242 B2
- Document ID: US11998242B2
- Status: Granted
- Kind: B2
- Application number: 16/997,388
- Filed: 2020-08-19
- Published: 2021-02-04
- Granted: 2024-06-04
- Earliest claimed: 2015-02-13
- Assignees: NuVasive, Inc.
- Applicants: NuVasive, Inc.
- Inventors: Thomas Scholl; Patrick Miles; Roberto Bassani
- Web page: https://patentgrep.com/patent/US11998242B2

## CPC

- A61B 17/7031: {made wholly or partly of flexible material}
- A61B 5/1071: {measuring angles, e.g. using goniometers (A61B5/1123 takes precedence)}
- A61B 17/7001: {Screws or hooks combined with longitudinal elements which do not contact vertebrae (A61B17/7058 takes precedence)}
- A61B 17/7011: {Longitudinal element being non-straight, e.g. curved, angled or branched (adjustable length longitudinal elements A61B17/7014; A61B17/7019 takes precedence, e.g. coil springs)}
- A61B 17/8863: {Apparatus for shaping or cutting osteosynthesis equipment by medical personnel}
- A61B 34/10: Computer-aided planning, simulation or modelling of surgical operations
- A61B 34/20: Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B 34/25: {User interfaces for surgical systems}
- A61B 2034/102: {Modelling of surgical devices, implants or prosthesis}
- A61B 2034/108: {Computer aided selection or customisation of medical implants or cutting guides}
- A61B 2034/2055: {Optical tracking systems}
- A61B 2034/2068: {using pointers, e.g. pointers having reference marks for determining coordinates of body points}
- A61B 2034/2072: {Reference field transducer attached to an instrument or patient}
- A61B 2090/3983: {Reference marker arrangements for use with image guided surgery}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A system for use during a surgical procedure includes a control unit configured to obtain a horizontal pelvic line (HPL) and a central sacral vertical line (CSVL); obtain a horizontal shoulder line (HSL) and an orthogonal midline (OM); compare the HPL and the CSVL with the HSL and the OM; determine an angle between the HPL and the HSL; and convert the angle to a patient position.

## Claims

### Claim 1

A system for use during a surgical procedure, the system comprising:
a control unit configured to:
obtain a horizontal pelvic line (HPL) and a central sacral vertical line (CSVL);
obtain a horizontal shoulder line (HSL) and an orthogonal midline (OM);
compare the HPL and the CSVL with the HSL and the OM;
determine an angle between the HPL and the HSL; and
convert the angle to a patient position.

### Claim 2 (depends on 1)

The system of claim 1, further comprising a fixture for obtaining one or more of said HPL, CSVL, HSL, and OM.

### Claim 3 (depends on 2)

The system of claim 2, wherein the fixture comprises a radio dense horizontal member and a radio dense vertical member orthogonal to the horizontal member.

### Claim 4 (depends on 3)

The system of claim 3, wherein the radio dense horizontal and vertical members comprise a K-wire.

### Claim 5 (depends on 4)

The system of claim 4, wherein the K-wire is permanently embedded in the fixture.

### Claim 6 (depends on 3)

The system of claim 3, wherein the vertical member further comprises one or more mating features for interaction with a digitizing pointer.

### Claim 7 (depends on 2)

The system of claim 2, wherein the fixture further comprises an integrated adhesive material.