Measurement method of customized orthopedic helmet and obtained orthopedic helmet
A measurement method and helmet technology, applied in diagnostic records/measurement, medical science, diagnosis, etc., can solve the problems of difficult scanning, large deletion, and lack of self-control ability of infants and young children, and achieve the effect of real data, good diagnosis and measurement
Pending Publication Date: 2021-06-29
国家康复辅具研究中心
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Problems solved by technology
[0003] For the problem of infantile head deformity, there are currently two kinds of orthopedic products at home and abroad: the first is a special shape pillow, which is used for infants to sleep on the pillow, but the orthopedic method is completely dependent on the shape of the pillow, and the orthopedic method is passive and cannot be used. Avoid the sleeping position of infants and young children; the second is the orthopedic helmet provided by professional institutions, which is mainly used for children with head shape problems of 4 to 15 months old infants. It belongs to the intervention treatment of growth and development and is widely used, almost Obtain the patient's head data through 2D photography or 3D scanning, as the basis for further customizing the helmet orthosis, use 2D photography, and then use 2D-3D conversion software to generate the patient's head model, and the reconstruction of the image uses filtering Algorithm (can cause large loss or even distortion), sharpening algorithm (can cause distortion of the real model) or depth information algorithm (model distortion rate reaches 50%, which can hardly reflect the real model), its disadvantage is that the data recognition rate is relatively Low; the STL format data file of the head is obtained through the 3D scanner, and the head data of patients with head deformity are obtained. However, due to the lack of self-control ability of infants and young children, when 3D scanning obtains head data, usually 4-15 months of infants Young children have almost no self-control stability, so it is almost impossible for them to sit down quietly for head scanning, not to mention wearing blindfolds for infants, which may cause irritability, fear, crying, etc. In addition, 3D scanning requires at least 20 seconds of scanning time. During this period of time, it is difficult to ensure that infants and young children do not move in a sitting position, which brings great difficulty to scanning, so that it is difficult to obtain accurate data after scanning.
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[0036] Such as figure 1As shown, it is a flow chart of the measurement method of the present invention, a measurement method of a customized orthopedic helmet of the present invention, the steps are as follows:
[0037] S1 Data acquisition of patients with head deformities: Usually, infants aged 4-15 months have almost no self-control stability, so it is almost impossible to let them sit quietly for head scanning. Therefore, the present invention takes the head of the infant as the center to carry out a 360 ° ring layout of six cameras, which are K1, K2, K3, K4, K5 and K6 respectively. height-adjustable cameras, the distance between the camera and the child is the same, each camera is fixed, such as Figure 6 As shown, H1 is a height-adjustable sitting posture shooting tray for infants and young children. The safety belt L1 integrated with the tray is fixed on the tray to form a safety protection belt to prevent accidents during the photo-taking process of infants and young c...
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The invention discloses a measurement method of a customized orthopedic helmet and the obtained orthopedic helmet. The measurement method comprises the following steps: S1, data acquisition of a skull malformation patient: a plurality of camera arrays surround the malformation patient to carry out 360-degree dead-corner-free photographing on the head of the malformation patient at the same time; and obtaining a 2D picture of the head of the malformation patient; S2, acquisition of a malformed skull model: inputting data of each picture as points of an initial picture, converting the points of each picture into a neural network of a feature map or a vector through an image recognition neural network system of a computer by utilizing an encoder-decoder system structure, predicting specific information of the head shape of the patient, and further generating a real three-dimensional skull model of the patient; S3, measurement of corresponding parameters of the malformed skull: performing index measurement on the three-dimensional skull model to obtain data of the customized helmet; wherein the parameter measurement comprises head circumference index measurement, skull index measurement and skull asymmetry index measurement; and S4, customizing the orthopedic helmet according to the measurement indexes.
Description
technical field [0001] The invention relates to a measurement method of custom-made orthopedic helmets and the obtained orthopedic helmets, which are mainly used for measurement and wearing of infants or patients with head deformities when customizing orthopedic helmets. Background technique [0002] Orthopedic helmets are mainly used for infants with cranial deformities. Between 3 months and 18 months after birth, due to different degrees of abnormalities in the anteroposterior or lateral positions of the infant's skull, misalignment or Restricted, affect the development of multiple regions of the brain, and even affect the development of cranial orthopedics for neurodevelopmental issues. Literature research found that head deformity can also affect the development and function of children's oral and maxillofacial region, otolaryngology and head and neck muscles. The incidence of cranial deformities in children was 22% when they were 7 weeks old and 21% when they were 2 ye...
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IPC IPC(8): A61B5/107A61F5/01
CPCA61F5/01A61B5/1072A61B5/1079A61B5/1077
Inventor郭俊超王振泽樊瑜波
Owner国家康复辅具研究中心