CN111297372A - Measuring device and method for measuring cervical vertebra mobility - Google Patents
Measuring device and method for measuring cervical vertebra mobility Download PDFInfo
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- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1118—Determining activity level
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Abstract
The invention discloses a measuring device and a method for measuring cervical vertebra activity, and relates to the field of cervical vertebra activity measurement, the device comprises a collecting unit, a data processing unit, a display unit and a voice unit, wherein the collecting unit is virtual reality equipment and optical motion capture equipment; the head data and the trunk joint point data of the measurer are measured through the virtual reality equipment and the optical motion capture equipment, the cervical vertebra activity of the measurer is obtained, the accuracy of the cervical vertebra activity is improved, the influence of the measurer on the result of the cervical vertebra activity due to unconscious body rotation is avoided, meanwhile, the measurer can independently complete the whole measurement with the help of the invention, the dependence of a professional therapist is reduced, and the discomfort of the patient in the measuring process is reduced.
Description
Technical Field
The invention relates to the field of measurement of cervical vertebra mobility, in particular to a device and a method for measuring cervical vertebra mobility.
Background
The virtual reality technology is a 3D virtual simulation world which is created and simulated, the basic realization mode is that a computer simulates a virtual environment so as to provide environment immersion for a patient, in the field of cervical vertebra rehabilitation, a therapist firstly needs to diagnose and evaluate the disease condition of the patient, the traditional cervical vertebra disease evaluation needs the therapist to measure the cervical vertebra joint activity and the proprioceptive positioning difference of the patient, and the pain condition in the evaluation process is orally inquired, and the traditional measurement modes of the neck joint activity are two types at present: (1) the movable angle is measured at several fixed joint points of the patient's head using a protractor, and then the degrees on the protractor are manually viewed and recorded. There are the following disadvantages: the time consumption is long; the measurement technique completely depends on the experience of therapists, and the measurement results are uneven; measurement errors are easily caused by manipulation, shaking, manual reading and the like in the measurement process; (2) the problems that a double-inclination angle device is adopted, one is used for positioning the joint point at 0 degree, and the other is used for positioning and measuring the degree after the cervical vertebra rotates are solved, although the accuracy of angle calculation is improved by adopting electronic equipment for measurement, measurement still needs a therapist with abundant experience to ensure accuracy, and the problems of time consumption and labor consumption are solved.
Disclosure of Invention
The invention aims to solve the problems and designs a measuring device and a method for measuring the activity of cervical vertebra.
The invention realizes the purpose through the following technical scheme:
an apparatus for measuring cervical mobility, comprising:
the acquisition unit is used for acquiring real-time body data of the measurer;
the data processing unit is used for processing the acquired real-time body data and constructing a virtual scene, and a signal end of the acquisition unit is connected with a signal end of the data processing unit;
the display unit is used for displaying the data processing result and the virtual scene prompt to a measurer, and a signal end of the display unit is connected with a signal end of the data processing unit;
and the signal end of the voice unit is connected with the signal end of the data processing unit.
Further, the acquisition unit comprises a first acquisition module for acquiring head data and a second acquisition module for acquiring torso joint point data.
Further, the first acquisition module is a virtual reality device with a six-axis gyroscope sensor, and the second acquisition module is an optical motion capture device.
Further, the virtual reality equipment is VR glasses.
A method of measuring cervical mobility, comprising:
s1, wearing the VR device on the head by a measurer, and locating the VR device in a data acquisition area of the optical motion capture device;
s2, constructing a virtual scene by using the data processing unit and displaying the virtual scene in front of the eyes of a measurer through VR equipment;
s3, the measurer moves the head according to the indication of the virtual scene and the voice prompt of the voice unit;
s4, collecting head data of a measurer when the head moves to the maximum extent by the VR device, collecting corresponding trunk joint point data of the measurer at the same time by the optical motion capture device, and transmitting the collected data to the data processing module by the VR device and the optical motion capture device;
s5, the data processing unit carries out error correction and filtering processing on the head data and the trunk joint point data to obtain the cervical vertebra mobility of the measurer, and the data processing result is displayed in front of the eyes of the measurer through VR equipment.
Further, in S3, the head movement of the person is measured including left flexion, right flexion, left rotation, right rotation, forward flexion, and backward extension.
Further, in S3, each head movement of the measurer is at least 2 times.
Further, in S5, the relationship between the cervical vertebrae movement degree Ψ and the rotation result θ measured by the VR device and the rotation result Φ measured by the optical motion capture device is expressed as: θ is Φ + ψ.
The invention has the beneficial effects that: the head data and the trunk joint data of a measurer are measured respectively through the functions of the virtual reality equipment with the gyroscope sensor and the optical motion capture equipment, the cervical vertebra activity of the measurer is finally obtained, the accuracy of the cervical vertebra activity is improved, the influence of the measurer on the result of the cervical vertebra activity due to unconscious body rotation is avoided, meanwhile, the measurer can independently complete the whole measurement with the help of the invention, the dependence of a professional therapist is reduced, and the discomfort of a patient in the measurement process is reduced.
Drawings
FIG. 1 is a structural view of a measuring apparatus for measuring the mobility of cervical vertebrae according to the present invention;
fig. 2 is a use view of the method for measuring the activity of the cervical vertebrae of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
The invention realizes the purpose through the following technical scheme:
as shown in fig. 1, the apparatus for measuring the mobility of cervical vertebrae includes:
the acquisition unit is used for acquiring real-time body data of the measurer;
the data processing unit is used for processing the acquired real-time body data and constructing a virtual scene, and a signal end of the acquisition unit is connected with a signal end of the data processing unit;
the display unit is used for displaying the data processing result and the virtual scene prompt to a measurer, and a signal end of the display unit is connected with a signal end of the data processing unit;
and the signal end of the voice unit is connected with the signal end of the data processing unit.
The acquisition unit comprises a first acquisition module for acquiring head data and a second acquisition module for acquiring torso joint point data.
The first acquisition module is a virtual reality device with a six-axis gyroscope sensor, and the second acquisition module is an optical motion capture device.
The virtual reality equipment is VR glasses.
The head data and the trunk joint data of a measurer are measured respectively through the functions of the virtual reality equipment with the gyroscope sensor and the optical motion capture equipment, the cervical vertebra activity of the measurer is finally obtained, the accuracy of the cervical vertebra activity is improved, the influence of the measurer on the result of the cervical vertebra activity due to unconscious body rotation is avoided, meanwhile, the measurer can independently complete the whole measurement with the help of the invention, the dependence of a professional therapist is reduced, and the discomfort of a patient in the measurement process is reduced.
A method of measuring cervical mobility, comprising:
s1, wearing the VR device on the head by a measurer, and locating the VR device in a data acquisition area of the optical motion capture device, as shown in FIG. 2;
s2, constructing a virtual scene by using the data processing unit and displaying the virtual scene in front of the eyes of a measurer through VR equipment;
the VR equipment collects head data of a measurer, the optical motion capture equipment collects trunk joint point data of the measurer, the head data and the trunk joint point data are transmitted to the data processing unit, the data processing unit constructs a three-dimensional human body posture model and an animation scene used for indicating the measurer to carry out head movement according to the head data and the trunk joint point data of the measurer in a virtual scene, and therefore a user can conveniently adjust the body posture to keep the head and the trunk straight.
S3, the measurer performs head movement according to the indication of the virtual scene and the voice prompt of the voice unit, the VR device collects real-time head data of the head movement of the measurer, the optical motion capture device collects real-time trunk joint point data of the measurer, and the real-time head data and the real-time trunk joint point data are transmitted to the data processing unit, the head movement comprises left bending, right bending, left rotation, right rotation, front bending and rear stretching, and each head movement is at least 2 times;
and performing corresponding head movement through the movement indication of the animation scene and the voice indication of the voice unit, wherein the head movement comprises left bending, right bending, left rotation, right rotation, forward bending and backward extension.
During the head movement process of a measurer, the VR device continuously collects head data, the optical motion capture device collects trunk joint point data, whether the head movement is correct or not is judged, if the head movement is wrong, corresponding prompt of head movement error is displayed in an animation scene, a voice prompt is carried out on wrong postures, the measurer stays for 2 seconds in a certain range during measurement, namely, the measurer is considered to rotate to the limit, the head data and the trunk joint point data during the rotation of the limit position are transmitted to the data processing unit, meanwhile, the measurer is prompted to return to the starting point again, 2 times of measurement in the same mode is repeatedly carried out, and 2 times of head data and corresponding trunk joint point data are recorded.
S4, the data processing unit performs error correction filtering processing on the head data and the trunk joint point data at the time of the extreme rotation position, and obtains the rotation result θ measured by the VR device and the rotation result Φ measured by the optical motion capture device in six directions, and the rotation angle measured by the VR device is actually a composite result of the rotation motion of the measured person' S body and the head rotation motion, so that the relationship between the cervical vertebra activity Ψ and the rotation result θ measured by the VR device and the rotation result Φ measured by the optical motion capture device is expressed as: and theta is phi + psi, the activity of the cervical vertebra of the measurer in six directions is finally obtained, and the data processing result is displayed in front of the eyes of the measurer through VR equipment.
The method for judging whether the head movement is correct comprises the following steps:
when the body posture is judged, three basic sections of the human body are determined according to medicine and anatomy, wherein ① a plane passing through the midpoint of the user spine and parallel to the ground plane is a cross section, ② a plane passing through the midpoint of the user spine and perpendicular to the ground plane and consistent with the body orientation of the user is a sagittal plane, and ③ a plane passing through the midpoint of the user spine and perpendicular to the two planes is a coronal plane;
left/right side flexion posture: the distance of the head in front between the two shoulders is less than 8 cm; the distance of the head in front between the two shoulders is more than 4 cm; the distance between the two shoulders in front of the mid point of the spine is less than 2.5 cm; the distance between the two shoulders behind the midpoint of the spine is less than 2 cm; the included angle between the connecting line (clavicle) between the left shoulder and the right shoulder and the sagittal plane is more than 75 degrees; the distance between the left shoulder and the right shoulder is less than 1.5 cm; the distance between the right shoulder and the upper part of the left shoulder is less than 1.5 cm; the rotation angle of the head in the left/right rotation direction and the forward and backward extension direction is less than 20 degrees.
Left/right rotation posture: the distance of the head in front between the two shoulders is less than 8 cm; the distance of the head in front between the two shoulders is more than 4 cm; the distance between the two shoulders in front of the mid point of the spine is less than 2.5 cm; the distance between the two shoulders behind the midpoint of the spine is less than 2 cm; the included angle between the connecting line (clavicle) between the left shoulder and the right shoulder and the sagittal plane is more than 75 degrees; the distance between the left shoulder and the right shoulder is less than 1.5 cm; the distance between the right shoulder and the upper part of the left shoulder is less than 1.5 cm; the rotation angle of the head in the left/right flexion direction and the anterior flexion and posterior extension direction is less than 20 degrees;
forward flexion/backward extension posture: the distance of the head in front between the two shoulders is less than 8 cm; the distance of the head in front between the two shoulders is more than 4 cm; the distance between the two shoulders in front of the mid point of the spine is less than 2.5 cm; the distance between the two shoulders behind the midpoint of the spine is less than 2 cm; the included angle between the connecting line (clavicle) between the left shoulder and the right shoulder and the sagittal plane is more than 75 degrees; the distance between the left shoulder and the right shoulder is less than 1.5 cm; the distance between the right shoulder and the upper part of the left shoulder is less than 1.5 cm; the rotation angle of the head in the left/right rotation direction, the left/right flexion direction is less than 20 °.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (8)
1. A device for measuring cervical mobility, comprising:
the acquisition unit is used for acquiring real-time body data of the measurer;
the data processing unit is used for processing the acquired real-time body data and constructing a virtual scene, and a signal end of the acquisition unit is connected with a signal end of the data processing unit;
the display unit is used for displaying the data processing result and the virtual scene prompt to a measurer, and a signal end of the display unit is connected with a signal end of the data processing unit;
and the signal end of the voice unit is connected with the signal end of the data processing unit.
2. The apparatus for measuring cervical mobility according to claim 1, wherein the acquisition unit includes a first acquisition module for acquiring head data and a second acquisition module for acquiring torso joint point data.
3. The apparatus for measuring cervical mobility according to claim 2, wherein the first acquisition module is a virtual reality device having a six-axis gyro sensor, and the second acquisition module is an optical motion capture device.
4. The apparatus of claim 3, wherein the virtual reality device is VR glasses.
5. The method for measuring the activity of the cervical vertebra is characterized by comprising the following steps:
s1, wearing the VR device on the head by a measurer, and locating the VR device in a data acquisition area of the optical motion capture device;
s2, constructing a virtual scene by using the data processing unit and displaying the virtual scene in front of the eyes of a measurer through VR equipment;
s3, the measurer moves the head according to the indication of the virtual scene and the voice prompt of the voice unit, the VR device collects real-time head data of the head movement of the measurer, and the optical motion capture device collects real-time trunk joint point data of the measurer;
s4, the data processing unit carries out error correction and filtering processing on the real-time head data and the real-time trunk joint data to obtain the cervical vertebra mobility of the measurer, and the data processing result is displayed in front of the eyes of the measurer through VR equipment.
6. The method of measuring activity of cervical vertebrae according to claim 5, wherein the head movement of the person is measured in S3 including left flexion, right flexion, left rotation, right rotation, forward flexion, and backward extension.
7. The method of measuring activity of cervical vertebrae according to claim 6, wherein each head movement of the measurer is at least 2 times at S3.
8. The method of measuring activity of cervical vertebrae according to claim 5, wherein in S4, the relationship between the activity of cervical vertebrae Ψ and the rotation result θ measured by the VR device and the rotation result Φ measured by the optical motion capture device is represented as: θ is Φ + ψ.
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| CN202010211531.0A CN111297372A (en) | 2020-03-24 | 2020-03-24 | Measuring device and method for measuring cervical vertebra mobility |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991002A (en) * | 2020-08-24 | 2020-11-27 | 四川大学华西医院 | Method, device and equipment for measuring neck mobility |
| CN112418094A (en) * | 2020-11-24 | 2021-02-26 | 成都翡铭科技有限公司 | Method for measuring head front stretching and rear shrinking distance based on characteristic joint point data |
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| CN212281355U (en) * | 2020-03-24 | 2021-01-05 | 成都翡铭科技有限公司 | Measuring device for measuring cervical vertebra mobility |
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2020
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Patent Citations (4)
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| CN107578608A (en) * | 2016-07-05 | 2018-01-12 | 欧普照明股份有限公司 | A kind of body gesture correction detection means and its method |
| CN209059212U (en) * | 2018-03-30 | 2019-07-05 | 中国人民解放军第二军医大学第二附属医院 | Cervical vertebra three-dimensional activity degree spherical shape analyzer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111991002A (en) * | 2020-08-24 | 2020-11-27 | 四川大学华西医院 | Method, device and equipment for measuring neck mobility |
| CN112418094A (en) * | 2020-11-24 | 2021-02-26 | 成都翡铭科技有限公司 | Method for measuring head front stretching and rear shrinking distance based on characteristic joint point data |
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Application publication date: 20200619 |