Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Measurement device and detection method for bone density

A measuring device and bone density technology, applied in the field of medical devices, can solve the problems of long-distance propagation attenuation, small amplitude, and poor reflection of the first arrival wave, so as to improve measurement accuracy, accurately measure bone density, Measuring the effect of convenience

Inactive Publication Date: 2011-01-19
JIANGSU UNIV
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional axial propagation technology uses the first arrival wave to calculate the propagation delay. However, when the ultrasonic wave length is smaller than the thickness of the cortical bone, the first arrival wave cannot well reflect the thickness of the cortical bone, the amplitude is small, and the long-distance propagation attenuation Too big and other defects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Measurement device and detection method for bone density
  • Measurement device and detection method for bone density
  • Measurement device and detection method for bone density

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] First divide the distance L between the transmitting probe 6 and the transmitting probe 7 into n equal parts, and then follow the steps below:

[0035] (a) Put the arm to be tested into the arm measurement slot 4, start the stepper motor 12, and set the position of the receiving probe 8 at the L / n cm away from the transmitting probe 6;

[0036] (b) Lock the stepper motor 12, the transmitting probe 6 and the transmitting probe 7 transmit ultrasonic slow waves in sequence, and the receiving probe 8 converts the ultrasonic slow waves received twice into electrical signals and sends them to the subsequent module for processing;

[0037] (c) The stepper motor 12 is started again, and the receiving probe 8 is moved to the direction of the transmitting probe 7 by L / n cm, and then step (b) is performed;

[0038] (d) Jump to step (c) and repeat n-3 times.

[0039] According to the above measurement steps, the ultrasonic receiving probe 8 has a total of n-1 test positions, each ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a measurement device and a detection method for detecting bone density by using an axial quantitative ultrasonic method in the technical field of medicinal instruments. A shell is fixedly connected with one end of a spring set, the other end of the spring set is connected with a side pad, an arm measurement groove is formed in the upper space of the side pad, and the opposite side of the side pad is provided with two same transmitting probes and a receiving probe; the two transmitting probes and the receiving probe are positioned on the same plane on one side of a partition board, and the bottom end of the receiving probe is connected with a transmission component; and a measured arm is put into the arm measurement groove, the spring set drives the side pad to move horizontally in the arm measurement groove, a rotating shaft of a step motor drives a screw to rotate so as to drive the receiving probe to move, the two transmitting probes transmit ultrasonic slow wave in turn, and the receiving probe converts the ultrasonic slow wave received twice into electrical signals for subsequent processing. The device and the method avoid the measurement error caused by the thickness of soft tissues on the bone, accurately position the position of the receiving probe, and improve the measurement precision.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a measurement device and a detection method for detecting bone density by an axial quantitative ultrasonic method. Background technique [0002] Quantitative ultrasound technology has been studied in the detection of osteoporosis for many years. It can predict the occurrence of fractures clinically. It has the advantages of non-invasive, portable, wide application range, and good repeatability. At present, the ultrasonic transverse propagation technology is the most widely used. The transverse propagation technology uses two piezoelectric transducers, one of which is used as a transmitter and the other is used as a receiver. side to measure. This method measures the slope relationship between ultrasonic frequency and amplitude attenuation, that is, broadband ultrasonic attenuation coefficient and ultrasonic propagation velocity. When the ultrasound propagates on both si...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61B8/00
Inventor 张荣标金振俊黄义振张业成
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com