CN113724268B - Orthopedic region dividing method and system for scoliosis orthosis - Google Patents
Orthopedic region dividing method and system for scoliosis orthosis Download PDFInfo
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- CN113724268B CN113724268B CN202110898646.6A CN202110898646A CN113724268B CN 113724268 B CN113724268 B CN 113724268B CN 202110898646 A CN202110898646 A CN 202110898646A CN 113724268 B CN113724268 B CN 113724268B
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 29
- 206010039722 scoliosis Diseases 0.000 title claims abstract description 28
- 239000011436 cob Substances 0.000 claims abstract description 23
- 238000013316 zoning Methods 0.000 claims abstract description 7
- 230000002146 bilateral effect Effects 0.000 claims description 4
- 210000002615 epidermis Anatomy 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013139 quantization Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 8
- 238000002591 computed tomography Methods 0.000 description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
- 210000000323 shoulder joint Anatomy 0.000 description 2
- 102100035235 Coiled-coil domain-containing protein 141 Human genes 0.000 description 1
- 101000737219 Homo sapiens Coiled-coil domain-containing protein 141 Proteins 0.000 description 1
- 206010064466 Trunk deformities Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 230000004199 lung function Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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- G06T7/11—Region-based segmentation
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
- G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/101—Computer-aided simulation of surgical operations
- A61B2034/105—Modelling of the patient, e.g. for ligaments or bones
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Abstract
An orthopedic zoning method and system for a scoliosis orthosis, comprising the steps of: collecting full-length positive side data of a spine in a standing position, and establishing a three-dimensional digital model of the spine; defining an end vertebra of a scoliosis angle Cobb angle on the three-dimensional digital model; acquiring an intersection point 1 on the three-dimensional digital model through the end cone of the Cobb angle; extending the intersection point 1 horizontally to obtain an intersection point 2 in the side view of the three-dimensional digital model; the orthopedic region division is realized by connecting the intersection points 2. The method comprises the steps of dividing the orthopedic area through a specific quantization method so as to normalize the manufacturing of the orthopedic device; 2. the dividing method is simple and convenient, has good operability effect, is suitable for popularization and use, and has wide application field and better economic benefit. The orthopedic region dividing method can reduce the dependence on the experience of an orthoist in the process of manufacturing the orthopedic device, and can quantify the orthopedic region. The effectiveness of the orthopedic and the orthopedic efficiency can be improved.
Description
Technical Field
The invention belongs to the technical field of orthotics, and particularly relates to an orthopedic area dividing method and system for a scoliosis orthotics.
Background
Scoliosis is a three-dimensional deformity of the spine, is various, has high incidence rate of about 1% -3%, and can cause serious complications such as trunk deformity, limb pain, heart and lung function damage and the like when the scoliosis is not diagnosed in time in the development period of children, and simultaneously forms huge social and psychological pressure to seriously endanger physical and mental health. Orthoses are currently the primary treatment tool used to treat scoliosis. The division of the orthopedic area is one of important links in the design and manufacturing process of the brace, and particularly, the division of the orthopedic application area has a direct influence on the effectiveness of brace orthopedic and patient compliance. The prior orthosis has the defects of weak effectiveness and the requirement of relying on the experience of a brace man for manufacturing the brace in the clinical treatment process of scoliosis.
Disclosure of Invention
The present invention aims to provide an orthopedic area dividing method and system for a scoliosis orthosis, which solve the above problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a method of orthopedic zoning for a scoliosis orthosis, comprising the steps of:
collecting full-length positive side data of a spine in a standing position, and establishing a three-dimensional digital model of the spine;
defining an end vertebra of a scoliosis angle Cobb angle on the three-dimensional digital model;
acquiring an intersection point 1 on the three-dimensional digital model through the end cone of the Cobb angle;
extending the intersection point 1 horizontally to obtain an intersection point 2 in the side view of the three-dimensional digital model;
the orthopedic region division is realized by connecting the intersection points 2.
Further, the three-dimensional digital model includes a torso epidermis.
Further, the Cobb angle end vertebrae are the vertebrae with the greatest concave side inclination.
Further, the obtaining of the intersection point 1 specifically includes:
and extending the transverse line of the upper edge of the cone of the upper end cone of the Cobb angle and the transverse line of the lower edge of the cone of the lower end cone to the scoliosis side to form a point intersected with the three-dimensional model of the patient body on the boundary.
Further, the number of intersection points 1 is two when the unilateral spine is bent, and the number of intersection points 1 is four when the bilateral spine is bent.
Further, the intersection point 2 is obtained specifically as follows:
all the intersection points 1 are taken as horizontal lines at the points where the anterior axillary line and the posterior axillary line intersect, respectively, in side view.
Further, the three-dimensional area formed by the horizontal connecting line of the intersection point 2, the anterior axillary line, the posterior axillary line and the boundaries of the upper end and the lower end of the three-dimensional model is an orthopedic area of the scoliosis orthosis.
Further, an orthopedic zoning system for a scoliosis orthosis, comprising:
the acquisition module is used for acquiring full-length positive side data of the spine in the standing position and establishing a three-dimensional digital model of the spine;
the Cobb angle determining module is used for defining an end vertebra of the scoliosis angle Cobb angle on the three-dimensional digital model;
the intersection point 1 obtaining module is used for obtaining an intersection point 1 on the three-dimensional digital model through the end cone of the Cobb angle;
the intersection point 2 obtaining module is used for carrying out horizontal line extension on the intersection point 1 to obtain an intersection point 2 in the side view of the three-dimensional digital model;
and the orthopedic region dividing module is used for realizing orthopedic region division by connecting the intersection points 2.
Compared with the prior art, the invention has the following technical effects:
the method carries out division of the orthopedic areas through a specific quantization method so as to normalize the manufacturing of the orthopedic device; the dividing method is simple and convenient, has good operability effect, is suitable for popularization and use, and has wide application field and better economic benefit. The orthopedic region dividing method can reduce the dependence on the experience of an orthoist in the process of manufacturing the orthopedic device, and can quantify the orthopedic region. The effectiveness of the orthopedic and the orthopedic efficiency can be improved.
Drawings
FIG. 1 is an explanatory view of the method for dividing unilateral bending orthopedic region according to the present invention
FIG. 2 is an explanatory view of the method for dividing the bilateral bending orthopedic area according to the present invention
Detailed Description
The invention is further described below with reference to the accompanying drawings:
an orthopedic area dividing method and system for scoliosis orthoses,
collecting full-length positive side data of a spine in a standing position, and establishing a three-dimensional digital model of the spine;
defining an end vertebra of a scoliosis angle Cobb angle on the three-dimensional digital model;
acquiring an intersection point 1 on the three-dimensional digital model through the end cone of the Cobb angle;
extending the intersection point 1 horizontally to obtain an intersection point 2 in the side view of the three-dimensional digital model;
the orthopedic region division is realized by connecting the intersection points 2.
The patient is subjected to a three-dimensional digital model of the spine (including the torso) required for the orthopedic area segmentation method, including a full length positive lateral X-ray or CT scan (or MRI scan) of the standing spine. The three-dimensional digital model data acquisition is performed according to the requirements of T/CAMDI 028-2019.
The data obtained by CT scanning (or MRI scanning) is processed by the chemicals to obtain a three-dimensional digital model in STL format.
And (3) dividing orthopedic areas according to the three-dimensional digital model, the scoliosis Cobb angle of the patient, and the anterior axillary line and the posterior axillary line.
The invention is further illustrated by the following two examples:
1) One-sided bending
(1) Firstly, acquiring a digital three-dimensional model of the whole spine (including trunk epidermis) body of a patient;
(2) Secondly, defining a cone with the biggest inclination of the concave side, which is the cone at the corner end of the Cobb of the patient, on the front view of the digital model;
(3) And then, extending the transverse line of the upper edge of the vertebral body of the upper end vertebra and the transverse line of the lower edge of the vertebral body of the Cobb angle of the patient to the scoliosis side, and intersecting the three-dimensional model of the body of the patient at the point A and the point B on the boundary.
(4) Finally, points A and B are respectively horizontal lines, intersecting with A1 and A2, and B1 and B2, respectively, in the anterior and posterior axillary lines in the left view, intersecting with C1 and C2, and D1 and D2, respectively, in the anterior and posterior axillary lines in the right view;
(5) The three-dimensional area S1 formed by the horizontal connecting lines of A1 and A2 and the horizontal connecting lines of B1 and B2 and the anterior axillary line and the posterior axillary line is a convex side orthopedic force application area; the three-dimensional area S2 formed by the horizontal connecting lines of C1 and C2 and the boundary of the upper end of the three-dimensional model of the patient body, the three-dimensional area S3 formed by the horizontal connecting lines of D1 and D2 and the boundary of the lower end of the three-dimensional model of the patient body and the boundary of the three-dimensional model of the patient body, and the three-dimensional area S3 formed by the horizontal connecting lines of C1 and C2 and the boundary of the three-dimensional model of the patient body are concave side orthopedic force application areas.
2) Double-sided bending
The dividing method of double-side bending is the same as the dividing method of single-side bending, the dividing of corresponding areas is also carried out on the basis of the Cobb angle, and a certain example of a patient with double-side bending is adopted, and the specific dividing method is as follows:
(1) Firstly, acquiring a digital three-dimensional model of the whole spine (including trunk epidermis) body of a patient;
(2) Secondly, the curved Cobb angles of the patient are delineated on the front view of the digital model, denoted Cobb1 and Cobb2, respectively;
(3) Then, respectively extending the transverse line of the upper edge of the cone body of the upper end cone of Cobb1 and Cobb2 and the lower edge line of the cone body of the lower end cone to the concave sides of the Cobb1 and Cobb2, and respectively intersecting the extension line and the three-dimensional model of the patient body at A, B, C, D points on the boundary;
(4) Finally, the horizontal line passing through the point A intersects with the anterior axillary line and the posterior axillary line A1 and A2 respectively in the left view, and intersects with the anterior axillary line and the posterior axillary line A3 and A4 respectively in the right view. The horizontal line passing through the point B intersects with the anterior and posterior axillary lines B1 and B2, respectively, in the left view. The horizontal line passing through point C intersects with points C1 and C2 in the right view at the anterior and posterior axillary lines, respectively. The point D is horizontal and intersects with the anterior and posterior axillary lines D1 and D2, respectively, in the left view and with the anterior and posterior axillary lines D3 and D4, respectively, in the right view.
(5) The three-dimensional area S2 formed by the horizontal connecting lines A1 and A2, the horizontal connecting lines B1 and B2 and the anterior axillary line and the posterior axillary line, the three-dimensional area S1 formed by the horizontal connecting lines A3 and A4 and the upper end boundary of the three-dimensional model of the patient, the three-dimensional area S3 formed by the horizontal connecting lines C1 and C2 and the anterior axillary line, the posterior axillary line and the horizontal connecting lines D3 and D4, the three-dimensional area S4 formed by the horizontal connecting lines D1 and D2 and the anterior axillary line, the posterior axillary line and the lower end boundary of the three-dimensional model of the patient is the orthopedic force application area of bilateral bending.
It should be noted that the above partitioning method needs to be avoided when encountering human anatomy. For example, the orthopedic application area theoretically includes a shoulder joint, but because wrapping the shoulder joint into the brace during actual orthopedic procedures can seriously affect the life of the patient, the orthopedic application area needs to be divided to avoid correspondingly.
Claims (3)
1. A method of orthopedic zoning for a scoliosis orthosis, comprising the steps of:
collecting full-length positive side data of a spine in a standing position, and establishing a three-dimensional digital model of the spine;
defining an end vertebra of a scoliosis angle Cobb angle on the three-dimensional digital model;
acquiring an intersection point 1 on the three-dimensional digital model through the end cone of the Cobb angle;
extending the intersection point 1 horizontally to obtain an intersection point 2 in the side view of the three-dimensional digital model;
the correction area division is realized by connecting the intersection points 2;
the cone at the corner end of the Cobb is the cone with the maximum concave side gradient;
the intersection point 1 is obtained specifically as follows:
extending the upper edge transverse line of the cone of the upper end cone of the Cobb angle and the lower edge transverse line of the cone of the lower end cone to the scoliosis side to form a point intersected with the three-dimensional model of the patient body on the boundary;
the number of the intersection points 1 is two when the unilateral spine is bent, and the number of the intersection points 1 is four when the bilateral spine is bent;
the intersection point 2 is obtained specifically as follows:
all the crossing points 1 are used as points at which the horizontal lines respectively cross with the anterior axillary line and the posterior axillary line in side view;
the three-dimensional area formed by the horizontal connecting line of the intersection point 2, the anterior axillary line, the posterior axillary line and the upper and lower end boundaries of the three-dimensional model is the orthopedic area of the scoliosis orthosis.
2. The method of orthopedic zoning for a scoliosis orthosis of claim 1 wherein the three-dimensional digital model includes a torso epidermis.
3. An orthopedic zoning system for a scoliosis orthosis, characterized in that it is based on a method for the orthopedic zoning of a scoliosis orthosis according to any of claims 1 to 2, comprising:
the acquisition module is used for acquiring full-length positive side data of the spine in the standing position and establishing a three-dimensional digital model of the spine;
the Cobb angle determining module is used for defining an end vertebra of the scoliosis angle Cobb angle on the three-dimensional digital model;
the intersection point 1 obtaining module is used for obtaining an intersection point 1 on the three-dimensional digital model through the end cone of the Cobb angle;
the intersection point 2 obtaining module is used for carrying out horizontal line extension on the intersection point 1 to obtain an intersection point 2 in the side view of the three-dimensional digital model;
and the orthopedic region dividing module is used for realizing orthopedic region division by connecting the intersection points 2.
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