# US 2017/0281279 A1 · Orthopedic treatment device co-display systems and methods

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- Number: US 2017/0281279 A1
- Document ID: US20170281279A1
- Status: Published application
- Kind: A1
- Application number: 15/630,010
- Filed: 2017-06-22
- Published: 2017-10-05
- Earliest claimed: 2012-02-03
- Assignees: Stryker European Holdings I, LLC
- Applicants: Stryker European Holdings I, LLC
- Inventors: Andrew Haskell
- Web page: https://patentgrep.com/patent/US20170281279A1

## CPC

- A61B 34/10: Computer-aided planning, simulation or modelling of surgical operations
- G06T 17/00: Three-dimensional [3D] modelling for computer graphics
- G06T 19/00: Manipulating three-dimensional [3D] models or images for computer graphics
- G06T 19/20: Editing of three-dimensional [3D] images, e.g. changing shapes or colours, aligning objects or positioning parts
- G09G 5/00: Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators (image data processing or generation, in general G06T)
- G09G 5/14: Display of multiple viewports
- A61B 17/62: Ring frames, i.e. devices extending around the bones to be positioned ({A61B17/6433} , A61B17/66 take precedence)
- A61B 2034/104: {Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring}
- A61B 2034/105: {Modelling of the patient, e.g. for ligaments or bones}
- A61B 2034/108: {Computer aided selection or customisation of medical implants or cutting guides}
- G06F 3/04815: Interaction with a metaphor-based environment or interaction object displayed as three-dimensional [3D], e.g. changing the user viewpoint with respect to the environment or object
- G06F 3/0483: Interaction with page-structured environments, e.g. book metaphor
- G06F 3/04842: Selection of displayed objects or displayed text elements (G06F3/0482 takes precedence)
- G06F 3/0486: Drag-and-drop
- G06T 2200/04: involving 3D image data
- G06T 2200/24: involving graphical user interfaces [GUIs]
- G06T 2219/2004: Aligning objects, relative positioning of parts
- G06T 2219/2016: Rotation, translation, scaling
- G16H 40/63: for local operation
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

In some embodiments, a synthetic (virtual) orthopedic treatment device (e.g. a virtual external fixator representing a physical fixator attachable to a patient anatomic structure) is displayed concurrently in two views (e.g. anterior-posterior and lateral) along corresponding digital medical images (e.g. X-rays), and rotation/translation user input received along one of the images is used to concurrently control both displays of the orthopedic treatment device to reflect the rotation/translation user input.

## Claims

### Claim at position 1

1-2. (canceled)

### Claim 3

A computer-implemented method comprising employing at least one processor to execute instructions to:
generate a display of an ellipse superimposed on a display of at least one digital medical image, the at least one digital medical image displaying a view of a patient's anatomical structure, the ellipse being a graphical representation of a first ring of a synthetic external fixator representing a physical external fixator attached to the patient's anatomical structure, the physical external fixator comprising first and second rings interconnected by a plurality of struts;
generate a display of a first line segment extending along an axis of a first bone segment shown in the display of the at least one digital medical image by detecting locations of corresponding bone segment graphical user input;
for each strut, receive strut attachment point user input representing a first actual point of attachment of the strut to the first ring and a second actual point of attachment of the strut to the second ring;
generate a strut line segment for each strut and displaying the strut line segment on the display such that the strut line segment overlies a corresponding one of the plurality of struts in the digital medical image; and
generate a bone deformity correction plan specifying for each strut a sequence of strut lengths to be used in a bone deformity correction treatment.

### Claim 4 (depends on 3)

The method of claim 3, wherein the bone segment graphical user input includes mouse clicks at opposite ends of the first bone segment shown in the display of the at least one digital medical image.

### Claim 5 (depends on 3)

The method of claim 3, wherein the first actual point of attachment of the strut to the first ring is a hole in the first ring.

### Claim 6 (depends on 3)

The method of claim 3, wherein the first actual point of attachment of the strut to the first ring is via an intermediary piece of hardware coupled to the first ring.

### Claim 7 (depends on 6)

The method of claim 6, wherein the intermediary piece of hardware is a ring drop device adapted to position a corresponding one of the struts a predefined distance from the first ring.

### Claim 8 (depends on 3)

The method of claim 3, wherein the display of the ellipse superimposed on the display of at least one digital medical image is displayed simultaneously with the strut line segments.

### Claim 9 (depends on 3)

The method of claim 3, wherein the display of the at least one digital medical image comprises at least two digital medical images, each image displaying a view from a different angle of the patient's anatomical structure.

### Claim 10

A computer system comprising at least one microprocessor configured to execute instructions to:
generate a display of an ellipse superimposed on a display of at least one digital medical image, the at least one digital medical image displaying a view of a patient's anatomical structure, the ellipse being a graphical representation of a first ring of a synthetic external fixator representing a physical external fixator attached to the patient's anatomical structure, the physical external fixator comprising first and second rings interconnected by a plurality of struts;
generate a display of a first line segment extending along an axis of a first bone segment shown in the display of the at least one digital medical image by detecting locations of corresponding bone segment graphical user input;
for each strut, receive strut attachment point user input representing a first actual point of attachment of the strut to the first ring and a second actual point of attachment of the strut to the second ring;
generate a strut line segment for each strut and displaying the strut line segment on the display such that the strut line segment overlies a corresponding one of the plurality of struts in the digital medical image; and
generate a bone deformity correction plan specifying for each strut a sequence of strut lengths to be used in a bone deformity correction treatment.

### Claim 11 (depends on 10)

The computer system of claim 10, wherein the bone segment graphical user input includes mouse clicks at opposite ends of the first bone segment shown in the display of the at least one digital medical image.

### Claim 12 (depends on 10)

The computer system of claim 10, wherein the first actual point of attachment of the strut to the first ring is a hole in the first ring.

### Claim 13 (depends on 10)

The computer system of claim 10, wherein the first actual point of attachment of the strut to the first ring is via an intermediary piece of hardware coupled to the first ring.

### Claim 14 (depends on 13)

The computer system of claim 13, wherein the intermediary piece of hardware is a ring drop device adapted to position a corresponding one of the struts a predefined distance from the first ring.

### Claim 15 (depends on 10)

The computer system of claim 10, wherein the display of the ellipse superimposed on the display of at least one digital medical image is displayed simultaneously with the strut line segments

### Claim 16 (depends on 10)

The computer system of claim 10, wherein the display of the at least one digital medical image comprises at least two digital medical images, each image displaying a view from a different angle of the patient's anatomical structure.

### Claim 17

A non-transitory computer-readable medium encoding instructions which, when executed by a microprocessor of a computer system, cause the computer system to:
generate a display of an ellipse superimposed on a display of at least one digital medical image, the at least one digital medical image displaying a view of a patient's anatomical structure, the ellipse being a graphical representation of a first ring of a synthetic external fixator representing a physical external fixator attached to the patient's anatomical structure, the physical external fixator comprising first and second rings interconnected by a plurality of struts;
generate a display of a first line segment extending along an axis of a first bone segment shown in the display of the at least one digital medical image by detecting locations of corresponding bone segment graphical user input;
for each strut, receive strut attachment point user input representing a first actual point of attachment of the strut to the first ring and a second actual point of attachment of the strut to the second ring;
generate a strut line segment for each strut and displaying the strut line segment on the display such that the strut line segment overlies a corresponding one of the plurality of struts in the digital medical image; and
generate a bone deformity correction plan specifying for each strut a sequence of strut lengths to be used in a bone deformity correction treatment.

### Claim 18 (depends on 17)

The non-transitory computer-readable medium of claim 17, wherein the bone segment graphical user input includes mouse clicks at opposite ends of the first bone segment shown in the display of the at least one digital medical image.

### Claim 19 (depends on 17)

The non-transitory computer-readable medium of claim 17, wherein the first actual point of attachment of the strut to the first ring is a hole in the first ring.

### Claim 20 (depends on 17)

The non-transitory computer-readable medium of claim 17, wherein the first actual point of attachment of the strut to the first ring is via an intermediary piece of hardware coupled to the first ring.

### Claim 21 (depends on 20)

The non-transitory computer-readable medium of claim 20, wherein the intermediary piece of hardware is a ring drop device adapted to position a corresponding one of the struts a predefined distance from the first ring.

### Claim 22 (depends on 17)

The non-transitory computer-readable medium of claim 17, wherein the display of the ellipse superimposed on the display of at least one digital medical image is displayed simultaneously with the strut line segments

### Claim 23 (depends on 17)

The non-transitory computer-readable medium of claim 17, wherein the display of the at least one digital medical image comprises at least two digital medical images, each image displaying a view from a different angle of the patient's anatomical structure.
