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Ultrasonic method of measuring bone age and bone growth plate development degree

A technology of growth degree and bone growth, applied in the field of measurement, can solve the problems of increasing errors, achieve objective and quantitative evaluation, eliminate human interference, and simple processing

Active Publication Date: 2006-10-18
宏扬(河北)医疗器械有限公司
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Problems solved by technology

Due to the different visual observations and experiences of each physician, human errors are often added, and it is difficult to have an objective standard and specific quantitative indicators

Method used

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  • Ultrasonic method of measuring bone age and bone growth plate development degree
  • Ultrasonic method of measuring bone age and bone growth plate development degree
  • Ultrasonic method of measuring bone age and bone growth plate development degree

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Embodiment Construction

[0022] Ultrasonic waves have different sound speeds when propagating in different media, and there is the following relationship between its propagation speed and material density: ν=K*ρ 2 In the formula, ρ is the density of matter, ν is the sound wave transmission speed, and κ is a constant.

[0023] There is a functional relationship between the transmission speed of sound waves and the density of matter, and different matter densities determine different speeds of sound. Since the density of bones gradually increases with age, the bone sound velocity exhibited will also increase accordingly. As long as we measure their bone sound velocity, we can also measure their bone age. Similarly, the growth plate of bone is a layer of transparent soft tissue. Although the speed of sound in the growth plate is higher than that in muscle and fat, it is much smaller than that in bone. Therefore, it can be known only by measuring the speed of sound at the growth plate. Whether they are i...

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Abstract

The ultrasonic method of measuring bone age and bone growth plate development degree belongs to the field of measurement technology. The technological scheme includes sampling over 600 children of 1-10 years old as measuring check samples; measuring the sound velocity in the children's radius and treating the measured results to obtain the average children's bone sound velocity as the standard value of average children's bone sound velocity in the said age range; and measuring the bone sound velocity and bone growth plate sound velocity of the measured child and comparing with the standard value so as to evaluation result of the bone age and bone growth plate development degree of the measured child. The present invention avoids the jamming on the measurement process and opens one new way of judging child's bone age and bone growth plate development degree objectively and quantitatively.

Description

technical field [0001] The invention relates to a method for detecting the development degree and bone age of bone growth plates by using the transmission speed of ultrasonic waves in bones, and belongs to the field of measurement technology. Background technique [0002] Bone age is a sign of the degree of bone growth and development, and bones gradually mature with age. Bone density is relatively low in adolescence, and gradually increases with age and the prolongation of the calcification process, reaching the peak bone density at around 40 years old. We call the degree of skeletal maturity skeletal age. Obviously, skeletal age has a parallel growth relationship with the actual age of a person, and there is a functional relationship with bone density. The growth plate of bone is the hyaline cartilage tissue bordering the epiphysis and metaphysis, also known as epiphyseal cartilage. The bone growth plate is divided into three layers: one is the static layer, the other is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00A61B5/00
Inventor 王杨柴雨力刘宏师磊胡宗华
Owner 宏扬(河北)医疗器械有限公司
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