# US 12,178,524 B2 · System and method to conduct bone surgery

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- Number: US 12,178,524 B2
- Document ID: US12178524B2
- Status: Granted
- Kind: B2
- Application number: 18/180,257
- Filed: 2023-03-08
- Published: 2023-07-06
- Granted: 2024-12-31
- Earliest claimed: 2019-04-22
- Assignees: Navisect, Inc.; The Research Foundation for The State University of New York
- Applicants: Navisect, Inc.; The Research Foundation for the State University.
- Inventors: Fazel Khan; Michael Bielski; Jafar Khan; Imin Kao; Guangyu He
- Web page: https://patentgrep.com/patent/US12178524B2

## CPC

- A61B 34/20: Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B 5/0064: {Body surface scanning}
- A61B 5/1072: {measuring distances on the body, e.g. measuring length, height or thickness (A61B5/1076 takes precedence)}
- A61B 17/15: Guides therefor
- A61B 90/30: Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
- A61B 90/39: {Markers, e.g. radio-opaque or breast lesions markers}
- A61B 90/96: using barcodes
- A61B 17/155: {Cutting femur}
- A61B 2034/107: {Visualisation of planned trajectories or target regions}
- A61B 2034/2048: {using an accelerometer or inertia sensor}
- A61B 2034/2055: {Optical tracking systems}
- A61B 2034/2065: {Tracking using image or pattern recognition}
- A61B 2090/366: {using projection of images directly onto the body}
- A61B 2090/378: {using ultrasound}
- A61B 2090/3937: {Visible markers}
- G01B 11/002: {for measuring two or more coordinates}
- G01B 11/25: by projecting a pattern, e.g. {one or more lines,} moiré fringes on the object (G01B11/255 takes precedence {; image analysis for depth or shape recovery G06T7/50})
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS

## Abstract

A surgical system is provided. The surgical system includes a camera operable to capture images and/or video. A projector is operable to project light, and a controller is communicatively coupled with the camera and the projector. The controller is operable to track movement of bone in real-time during surgery based on the images and/or video captured by the camera, and control the projector to project the light including a cutting line on the bone to indicate a cutting plane for cutting the bone during surgery.

## Claims

### Claim 1

A method comprising:
receiving, from a camera, images and/or video;
tracking, by a controller, movement of bone in real-time during surgery based on the images and/or video captured by the camera; and
projecting, by a projector, light including a cutting line on the bone to indicate a cutting plane for cutting of the bone during the surgery;
wherein the light projected by the projector includes one or more alignment lines to correspond with alignment markers on a jig coupled with the bone such that the alignment lines indicate a predetermined position of the jig based on preoperative planning.

### Claim 2 (depends on 1)

The method of claim 1, wherein the tracking of the movement of the bone further comprises:
tracking, by the controller, movement of a tracking component of a marker coupled with the bone in the images and/or video captured by the camera.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
registering, with the controller, a registration component of a marker coupled with the bone such that location and/or orientation of the marker in relation to the bone is determined.

### Claim 4 (depends on 3)

The method of claim 3, further comprising:
registering, into the controller, the location and/or orientation of the marker in relation to the bone by scanning at least a portion of a three-dimensional body of the registration component and at least a portion of the bone.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
adjusting the light projected on the bone in real time when the bone is moved.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
coupling the jig with the bone, the jig operable to guide a surgical blade during cutting of the bone during surgery.

### Claim 7

A method comprising:
receiving, from a camera, images and/or video;
coupling a jig with a bone, the jig operable to guide a surgical blade during the cutting of the bone during surgery;
tracking, by a controller, movement of the bone in real-time during surgery based on the images and/or video captured by the camera; and
projecting, by a projector, light including one or more alignment lines to correspond with alignment markers on the jig such that the alignment lines indicate a predetermined position of the jig based on preoperative planning.

### Claim 8 (depends on 7)

The method of claim 7, wherein the tracking of the movement of the bone further comprises:
tracking, by the controller, movement of a tracking component of a marker coupled with the bone in the images and/or video captured by the camera.

### Claim 9 (depends on 7)

The method of claim 7, further comprising:
registering, with the controller, a registration component of a marker coupled with the bone such that location and/or orientation of the marker in relation to the bone is determined.

### Claim 10 (depends on 9)

The method of claim 9, further comprising:
registering, into the controller, the location and/or orientation of the marker in relation to the bone by scanning at least a portion of a three-dimensional body of the registration component and at least a portion of the bone.

### Claim 11 (depends on 7)

The method of claim 7, wherein the light projected by the projector includes a cutting line on the bone to indicate a cutting plane for cutting the bone during surgery.