CN105534549A - Ultrasonic bone density instrument probe position monitoring system and monitoring method thereof - Google Patents
Ultrasonic bone density instrument probe position monitoring system and monitoring method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4245—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
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- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4245—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
- A61B8/4254—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient using sensors mounted on the probe
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
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Abstract
The invention provides an ultrasonic bone density instrument probe position monitoring system and a monitoring method thereof and relates to the technical field of ultrasonic detection. The monitoring system comprises an ultrasonic wave transmitting module for transmitting ultrasonic wave signals to the surface of a monitored bone, an ultrasonic wave receiving module for receiving the ultrasonic wave signals reflected by the surface of the monitored bone, a judgment module connected with the ultrasonic wave receiving module, and a display module connected with the judgment module, wherein the judgment module receives the ultrasonic wave signals received by the ultrasonic wave receiving module, screens the received ultrasonic wave signals according to preset conditions so as to judge whether the received ultrasonic wave signals meet the bone density detection conditions or not, and the display module is used for displaying a judgment result of the judgment module and relative position relation of an ultrasonic bone density instrument probe and the monitored bone. The ultrasonic bone density instrument probe position monitoring system can display whether the positions of the probe and the monitored bone meet the requirements or not in real time according to a monitoring result and facilitate improvement of the accuracy and detection efficiency of an ultrasonic bone density instrument.
Description
Technical field
The present invention relates to supersonic sounding technical field, particularly relate to a kind of ultrasonic bone density instrument probe position monitoring system and monitoring method thereof.
Background technology
Radius (tibia) ultrasonic bone density instrument is the medical diagnostic equipment of measurement human bone mineral density (bone strength) conventional at present.This equipment, by measuring the velocity of sound parallel across radius (or tibia), calculates and assesses human body bone conditions.In the process using this ultrasonic bone density instrument to measure bone density, ensureing that probe acoustic beam is parallel with tested position skeleton, is the key obtaining accurate data.
In order to ensure the depth of parallelism of probe acoustic beam and skeleton, the method of current employing is that employing two groups of ultrasonic reception signal waveforms compare differentiation, and calculate depth of parallelism parameter, when two waveforms overlap consistent (or the depth of parallelism is close to 0), think that probe positions has reached depth of parallelism requirement; When probe end face and skeleton direction basically identical, namely parallelism error is within the specific limits, and the accuracy of measurement data is considered to acceptable, and when parallelism error is larger, measurement data is not adopted.
This waveform and data are presented at the expression way on screen in real time, need operator's Real Time Observation ultrasonic reception waveform or depth of parallelism data, and whether artificial judgment probe has been adjusted to optimum position and made adjustment in time, is similar to blind looking for.Often because the reaction of operator or the time delay of judgement, excessively adjust probe positions, make probe positions be difficult to adjustment within a short period of time and put in place, thus have impact on testing efficiency and accuracy.Judge ultrasound wave sigmoid curves and read depth of parallelism data also have higher requirement to the specialty background of operator and experience.
Summary of the invention
For the problems referred to above, the present invention aims to provide a kind of ultrasonic bone density instrument probe position monitoring system and monitoring method thereof, and it according to the position of the real-time vision-control probe of monitoring result, can improve accuracy and the detection efficiency of ultrasonic bone density instrument.
Technical scheme provided by the invention is as follows:
A kind of ultrasonic bone density instrument probe position monitoring system, comprising: ultrasonic emitting module, ultrasound wave receiver module, determination module and display module, wherein,
Described ultrasonic emitting module, is positioned at described ultrasonic bone density instrument hardware circuit and is connected on probe, for ultrasonic signal is transmitted into tested bone surface;
Described ultrasound wave receiver module, be positioned at described ultrasonic bone density instrument hardware circuit and be connected to that probe is upper and the transducer of the transducer of described ultrasound wave receiver module and described ultrasonic emitting module is positioned in same level, the ultrasonic signal that described ultrasound wave receiver module reflects for receiving described tested bone surface;
Described determination module, be connected with described ultrasound wave receiver module, described determination module receives the described ultrasonic signal that described ultrasound wave receiver module receives, screening according to the pre-conditioned described ultrasonic signal to receiving, judging whether the ultrasonic signal received meets bone density detection condition with this;
Described display module, is connected with described determination module, and described display module is for the relative position relation of the result of determination and described ultrasonic bone density instrument probe and tested skeleton that show described determination module.
Further preferably, described ultrasonic emitting module comprises at least two transmitter units, and the transducer of described at least two transmitter units is positioned in same level, and the transducer of each described transmitter unit is arranged in equal angular on this horizontal plane;
Described ultrasound wave receiver module comprises at least two receiving elements, and the transducer of described at least two receiving elements is positioned in same level, and each described receiving element is arranged in equal angular on this horizontal plane.
Further preferably, describedly pre-conditionedly to comprise: the discrepancy threshold between crest value, trough value and crest between the ultrasonic signal that described waveform receiver module receives/trough place time point.
Further preferably, a signal acquisition module be connected with described ultrasound wave receiver module and determination module respectively is also comprised in described monitoring system, the ultrasonic signal that described signal acquisition module receives based on described ultrasound wave receiver module gathers ultrasonic sampled signal, and described ultrasonic sampled signal is sent to described determination module; Described determination module screens described ultrasonic sampled signal according to pre-conditioned, judges whether the ultrasonic signal received meets bone density detection condition with this.
Further preferably, also comprise a sampling length determination module be connected with described signal acquisition module in described monitoring system, described sampling length determination module determines the length of described ultrasonic sampled signal according to the ultrasonic sampled signal medium wave peak value maximum point that described signal acquisition module gathers.
Present invention also offers a kind of ultrasonic bone density instrument probe position monitoring method, comprise the following steps in described monitoring method:
S1 launches ultrasonic signal to tested bone surface;
S2 receives the ultrasonic signal of described tested bone surface reflection;
S3 screens according to the pre-conditioned described ultrasonic signal to receiving in step S2, judges whether the ultrasonic signal received meets bone density detection condition with this;
Result of determination in S4 step display S4 and show the relative position relation of described ultrasonic bone density instrument probe and tested skeleton.
Further preferably, specifically comprise in step S1: launch at least two bundle ultrasonic signals to tested bone surface;
Specifically comprise in step S2: the ultrasonic signal receiving the described tested bone surface reflection of at least two bundles.
Further preferably, describedly pre-conditionedly to comprise: the discrepancy threshold between crest value, trough value and crest between the ultrasonic signal that described waveform receiver module receives/trough place time point.
Further preferably, also comprise after described step S2:
S21 gathers ultrasonic sampled signal based on the described ultrasonic signal received;
Step S3 comprises:
Screening according to the pre-conditioned described ultrasonic sampled signal to collecting in step S21, judging whether the ultrasonic signal received meets bone density detection condition with this.
Further preferably, also comprise in described step S4:
Real-time display described ultrasonic bone density instrument probe and the parallel angle value between tested skeleton and position relationship, and provide corresponding prompting.
Ultrasonic bone density instrument probe position monitoring system provided by the invention and monitoring method thereof, following beneficial effect can be brought:
In the present invention, by the relative position relation in display module real-time display measurement process between probe and tested skeleton, thus the position of probe is indicated, operator no longer needs to understand the implication of ultrasonic signal waveform and parallel degrees of data, reduce the requirement to operator, convenient operation person intuitively observes probe positions in real time;
In addition, in the present invention, whether the relative position relation in display module in real time between display probe and tested skeleton is met the requirements, contributes to operator's quick adjustment probe positions, thus improve the accuracy of detection efficiency and image data; Greatly improve the visual experience of user simultaneously.
Accompanying drawing explanation
Below by clearly understandable mode, accompanying drawings preferred implementation, is further described above-mentioned characteristic, technical characteristic, advantage and implementation thereof.
Fig. 1 is a kind of embodiment structural representation of ultrasonic bone density instrument probe position monitoring system in the present invention;
Fig. 2 transmits and receives positionality schematic diagram when monitoring system comprises two transmitter units and two receiving elements in the present invention;
Fig. 3 is the another kind of embodiment structural representation of ultrasonic bone density instrument probe position monitoring system in the present invention;
Fig. 4 is another embodiment structural representation of ultrasonic bone density instrument probe position monitoring system in the present invention;
Fig. 5 is ultrasonic bone density instrument probe position monitoring method schematic flow sheet in the present invention;
Reference numeral:
100-ultrasonic bone density instrument probe position monitoring system, 110-ultrasonic emitting module, 120-ultrasound wave receiver module, 130-determination module, 140-display module, 150-signal acquisition module, 160-sampling length determination module, 101-ultrasonic bone density instrument probe.
Detailed description of the invention
Be illustrated in figure 1 the structural representation of ultrasonic bone density instrument probe position monitoring system provided by the invention 100 1 kinds of embodiments, as can be seen from the figure, comprise in this monitoring system 100: ultrasonic emitting module 110, ultrasound wave receiver module 120, determination module 130 and display module 140, wherein, the transducer of ultrasonic emitting module 110 and the transducer of ultrasound wave receiver module 120 are all positioned on ultrasonic bone density instrument probe, and are positioned in same level; Determination module 130 is connected with ultrasound wave receiver module 120, and display module 140 is connected with determination module 130.
In the course of the work, first ultrasonic signal is transmitted into tested bone surface by this ultrasonic bone density instrument probe; Afterwards, ultrasound wave receiver module 120 receives the ultrasonic signal of tested bone surface reflection and is sent in determination module 130 by the ultrasonic signal received; After determination module 130 receives the ultrasonic signal that ultrasound wave receiver module 120 sends over, contrast each other with the ultrasonic signal being about to receive, screening according to the pre-conditioned ultrasonic signal to receiving, judging whether the ultrasonic signal received meets bone density detection condition with this; Finally, display module 140 shows the judged result of determination module 130 and the relative position information of display ultrasonic bone density instrument probe and tested skeleton.
Specifically, in the present embodiment, ultrasonic emitting module 110 comprises at least two transmitter units, and these at least two transmitter units are positioned in same level, and each transmitter unit is arranged in equal angular on this horizontal plane, ultrasound wave receiver module 120 comprises at least two receiving elements, these at least two receiving elements are positioned in same level, and each receiving element is arranged in equal angular on this horizontal plane, to ensure when popping one's head in parallel with tested skeleton, the ultrasonic signal distance be irradiated on tested skeleton that different transmitter unit emits is consistent, the distance reflecting back into each receiving element from tested skeleton is also consistent, like this, when using the density of this ultrasonic bone density instrument to tested skeleton to test, the ultrasonic signal that can receive according to receiving element judges the depth of parallelism between probe and tested skeleton.
More particularly, above-mentionedly pre-conditionedly specifically to comprise: the discrepancy threshold between crest value, trough value and crest between the ultrasonic signal that described waveform receiver module 120 receives/trough place time point; Contrast the difference between these two groups of ultrasonic signal characteristic points by these characteristic points chosen in waveform, in general, judged by the starting point comparing peak value place ripple.Here why will screen the ultrasonic signal received, object carries out a preliminary judgement to the ultrasonic signal received, if the eigenvalue difference between the ultrasonic signal received is large especially, description operation is made mistakes or ultrasonic bone density instrument breaks down, therefore needs again to obtain one group of ultrasonic signal.
In a specific embodiment, as shown in Figure 2, ultrasonic emitting module 110 comprises two transmitter units (in diagram transmitter unit a1 and transmitter unit a2), ultrasound wave receiver module 120 comprises two receiving elements (in diagram receiving element b1 and receiving element b2), and two transmitter units, two receiving elements are in same level, two transmitter units are that equal angular is arranged, and two receiving elements are arranged in equal angular equally.After two receiving elements receive one group of ultrasonic signal respectively, respectively the ultrasonic signal received is sent to determination module 130 immediately; Determination module 130 is compared with being about to two groups of ultrasonic signals, judge whether the ultrasonic signal received can meet pre-conditioned, can meet if judge, the two groups of ultrasonic signals received if judge can not meet pre-conditioned, then give the alarm and point out user to reuse transmitting-receiving operation that ultrasonic emitting module 110 and ultrasound wave receiver module 120 carry out ultrasonic signal; The two groups of ultrasonic signals received if judge can meet pre-conditioned, then show in display module 140.
Specifically, because the distance of popping one's head between interior transducer is equal, therefore, when popping one's head in not parallel with tested skeleton, the distance of the waveform process that the two groups of ultrasonic signals received are corresponding just there are differences, just the angle of popping one's head in and between tested bone can be calculated according to trigonometric function relation with this, and whether met the requirements by the real-time relative position that mapping algorithm shows intuitively between probe and tested skeleton with the form of animation on display module 140, specifically, in display module 140, the refresh rate of display can be arranged according to real-time display effect.More particularly, the result that determination module 130 judges can by the color of schematic diagram or neighbouring word, points out probe positions (angle) in display module 140 whether within the normal range of setting; Or when probe positions exceedes setting value, alarm.
Above-mentioned embodiment is improved, obtain present embodiment, as shown in Figure 3, except comprising the modules in above-mentioned embodiment in the ultrasonic bone density instrument probe position monitoring system 100 provided in the present embodiment, also comprise the signal acquisition module 150 be connected with ultrasound wave receiver module 120 and determination module 130 respectively, signal acquisition module 150 gathers ultrasonic sampled signal based on the ultrasonic signal that ultrasound wave receiver module 120 receives, and ultrasonic sampled signal is sent to determination module 130; Determination module 130 screens ultrasonic sampled signal according to pre-conditioned, judges whether the ultrasonic signal received meets bone density detection condition with this.Above-mentioned embodiment is improved, obtain present embodiment, as shown in Figure 4, except comprising the modules in above-mentioned embodiment in the ultrasonic bone density instrument probe position monitoring system 100 that present embodiment provides, also comprise a sampling length determination module 160 be connected with signal acquisition module 150, sampling length determination module 160 determines the length of ultrasonic sampled signal according to the ultrasonic sampled signal medium wave peak value maximum point that signal acquisition module 150 gathers.
In a full implementation, ultrasonic emitting module 110, by the multiple transmitter units in excitation ultrasonic probe, makes transmitter unit launch the ultrasonic signal of certain frequency; Ultrasound wave receiver module 120 passes through the multiple receiving elements in probe, received ultrasonic signal, and transfers data to determination module 130.In determination module 130, the ultrasonic signal received is compared identify the ultrasonic waveform received, automatic screening obtains the difference characteristic between probe parallel angle waveform correlation after meeting pre-conditioned ultrasound wave waveform, if waveform does not meet pre-conditioned, then the ultrasonic signal re-starting ultrasonic emitting module 110 launches the ultrasound signal receipt step with ultrasound wave receiver module 120.
More particularly, first signal acquisition module 150 gathers one section of ultrasonic sampled signal from ultrasonic emitting module 110 launches the ultrasonic signal moment, the position that the length of this section of ultrasonic sampled signal should occur according to this segment data crest value maximum judges, about being generally the twice of maximum time of occurrence.Subsequently, by the yield value of adjustment hardware amplifying circuit, the ultrasonic signal received is amplified to the 80-85% of full scale, maximizing and neighbouring minima point thereof, and records its index value.When the maximum index difference that two-way receives ripple is equal with the minima index difference near maximum, this difference is exactly probe and the parallel angle value between tested skeleton; Last again by mapping algorithm, display module 140 (screen) shows real-time relative position between probe and skeleton intuitively.
As shown in Figure 5, present invention also offers a kind of ultrasonic bone density instrument probe position monitoring method, be applied to said detecting system, comprise the following steps:
S1 launches ultrasonic signal to tested bone surface;
S2 receives the ultrasonic signal of tested bone surface reflection;
S3 screens according to the pre-conditioned ultrasonic signal to receiving in step S2, judges whether the ultrasonic signal received meets bone density detection condition with this;
The relative position relation of the result of determination in S4 step display S4 and display ultrasonic bone density instrument probe and tested skeleton.
Specifically, specifically comprise in step sl: launch at least two bundle ultrasonic signals to tested bone surface; Then specifically comprise in step s 2: the ultrasonic signal receiving the tested bone surface reflection of at least two bundles.That is, comprise at least two transmitter units and at least two receiving elements at probe, ultrasonic signal is transmitted in tested skeleton by receiving element, and ultrasonic signal is received by corresponding receiving element after tested skeletal reflex.In step s3 pre-conditioned specifically comprises: the discrepancy threshold between crest value, trough value and crest between the ultrasonic signal that described waveform receiver module 120 receives/trough place time point; Contrast the difference between these two groups of ultrasonic signal characteristic points by these characteristic points chosen in waveform, in general, judged by the starting point comparing peak value place ripple.
Also comprise upon step s 2: S21 gathers ultrasonic sampled signal based on the described ultrasonic signal received; Comprising in step s3: screen according to the pre-conditioned described ultrasonic sampled signal to collecting in step S21, judging whether the ultrasonic signal received meets bone density detection condition with this.
It should be noted that above-described embodiment all can independent assortment as required.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a ultrasonic bone density instrument probe position monitoring system, is characterized in that, described monitoring system comprises: ultrasonic emitting module, ultrasound wave receiver module, determination module, determination module and display module, wherein,
Described ultrasonic emitting module, is positioned at described ultrasonic bone density instrument hardware circuit and is connected on probe, for ultrasonic signal is transmitted into tested bone surface;
Described ultrasound wave receiver module, be positioned at described ultrasonic bone density instrument hardware circuit and be connected to that probe is upper and the transducer of the transducer of described ultrasound wave receiver module and described ultrasonic emitting module is positioned in same level, the ultrasonic signal that described ultrasound wave receiver module reflects for receiving described tested bone surface;
Described determination module, be connected with described ultrasound wave receiver module, described determination module receives the described ultrasonic signal that described ultrasound wave receiver module receives, screening according to the pre-conditioned described ultrasonic signal to receiving, judging whether the ultrasonic signal received meets bone density detection condition with this;
Described display module, is connected with described determination module, and described display module is for the relative position relation of the result of determination and described ultrasonic bone density instrument probe and tested skeleton that show described determination module.
2. ultrasonic bone density instrument probe position monitoring system as claimed in claim 1, is characterized in that,
Described ultrasonic emitting module comprises at least two transmitter units, and the transducer of described at least two transmitter units is positioned in same level, and the transducer of each described transmitter unit is arranged in equal angular on this horizontal plane;
Described ultrasound wave receiver module comprises at least two receiving elements, and the transducer of described at least two receiving elements is positioned in same level, and each described receiving element is arranged in equal angular on this horizontal plane.
3. ultrasonic bone density instrument probe position monitoring system as claimed in claim 1 or 2, it is characterized in that, describedly pre-conditionedly to comprise: the discrepancy threshold between crest value, trough value and crest between the ultrasonic signal that described waveform receiver module receives/trough place time point.
4. ultrasonic bone density instrument probe position monitoring system as claimed in claim 1 or 2, it is characterized in that, a signal acquisition module be connected with described ultrasound wave receiver module and determination module respectively is also comprised in described monitoring system, the ultrasonic signal that described signal acquisition module receives based on described ultrasound wave receiver module gathers ultrasonic sampled signal, and described ultrasonic sampled signal is sent to described determination module; Described determination module screens described ultrasonic sampled signal according to pre-conditioned, judges whether the ultrasonic signal received meets bone density detection condition with this.
5. ultrasonic bone density instrument probe position monitoring system as claimed in claim 4, it is characterized in that, also comprise a sampling length determination module be connected with described signal acquisition module in described monitoring system, described sampling length determination module determines the length of described ultrasonic sampled signal according to the ultrasonic sampled signal medium wave peak value maximum point that described signal acquisition module gathers.
6. a ultrasonic bone density instrument probe position monitoring method, is characterized in that, comprises the following steps in described monitoring method:
S1 launches ultrasonic signal to tested bone surface;
S2 receives the ultrasonic signal of described tested bone surface reflection;
S3 screens according to the pre-conditioned described ultrasonic signal to receiving in step S2, judges whether the ultrasonic signal received meets bone density detection condition with this;
Result of determination in S4 step display S4 and show the relative position relation of described ultrasonic bone density instrument probe and tested skeleton.
7. ultrasonic bone density instrument probe position monitoring method as claimed in claim 6, is characterized in that,
Specifically comprise in step S1: launch at least two bundle ultrasonic signals to tested bone surface;
Specifically comprise in step S2: the ultrasonic signal receiving the described tested bone surface reflection of at least two bundles.
8. ultrasonic bone density instrument probe position monitoring method as claimed in claims 6 or 7, it is characterized in that, describedly pre-conditionedly to comprise: the discrepancy threshold between crest value, trough value and crest between the ultrasonic signal that described waveform receiver module receives/trough place time point.
9. ultrasonic bone density instrument probe position monitoring method as claimed in claim 8, is characterized in that,
Also comprise after described step S2:
S21 gathers ultrasonic sampled signal based on the described ultrasonic signal received;
Step S3 comprises:
Screening according to the pre-conditioned described ultrasonic sampled signal to collecting in step S21, judging whether the ultrasonic signal received meets bone density detection condition with this.
10. ultrasonic bone density instrument probe position monitoring method as claimed in claim 9, is characterized in that,
Also comprise in described step S4:
Real-time display described ultrasonic bone density instrument probe and the parallel angle value between tested skeleton and position relationship, and provide corresponding prompting.
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