【摘要】：脈診是中國(guó)傳統(tǒng)醫(yī)學(xué)最主要的診斷方法之一,有著非常悠久的歷史和獨(dú)特的創(chuàng)造性。然而傳統(tǒng)中醫(yī)脈診的主觀性很強(qiáng),往往缺少定量數(shù)據(jù)的支持。在現(xiàn)代醫(yī)學(xué)越來(lái)越重視定量化、客觀化的背景下,僅憑醫(yī)生個(gè)人切脈進(jìn)行診斷的中醫(yī)脈診很難為西方醫(yī)學(xué)所認(rèn)可,更無(wú)法將中醫(yī)脈診推向國(guó)際化。因此,如何按中醫(yī)理論提取脈象成為工程學(xué)必須要解決的問(wèn)題。本文針對(duì)這一問(wèn)題研制了基于柔性陣列傳感器的脈象檢測(cè)系統(tǒng)。 本論文用硅膠制作了專門(mén)的脈搏換能器。它由七路圓柱式的半封閉腔體構(gòu)成,能與皮膚良好接觸,避免了剛性探頭在長(zhǎng)期采集過(guò)程中對(duì)受試者皮膚的擠壓或損傷；設(shè)計(jì)了壓力控制系統(tǒng),對(duì)取脈壓力進(jìn)行監(jiān)測(cè)與控制,實(shí)現(xiàn)了最佳取脈壓力下的脈象采集；采用氣壓傳導(dǎo)的方式來(lái)感知脈搏搏動(dòng),并在此基礎(chǔ)上搭建了相應(yīng)的信號(hào)處理電路,完成了對(duì)脈象信號(hào)的提取、放大；以USB-7660為核心構(gòu)建了A/D采集系統(tǒng),實(shí)現(xiàn)了對(duì)多路脈象信號(hào)的顯示、存儲(chǔ)。 最后,對(duì)樣機(jī)進(jìn)行了聯(lián)機(jī)調(diào)試和標(biāo)定,完成了樣機(jī)準(zhǔn)確性、重復(fù)性的實(shí)驗(yàn)論證以及最佳脈圖的獲取。實(shí)驗(yàn)表明,該系統(tǒng)不僅可以有效采集到受試者的七路二維脈圖,而且能清晰地觀測(cè)到受試者的脈道寬度,并重建出相應(yīng)脈搏波的三維傳導(dǎo)地形圖。 本文研究的基于柔性陣列傳感器的脈象檢測(cè)系統(tǒng)的創(chuàng)新點(diǎn)在于設(shè)計(jì)了模擬指尖取脈的柔性脈搏換能器,并采用氣壓傳導(dǎo)的方式,實(shí)現(xiàn)了對(duì)多路脈象信號(hào)的采集,為中醫(yī)的客觀化、可視化研究提供了新方法。
[Abstract]:Pulse diagnosis is one of the most important diagnostic methods in traditional Chinese medicine, which has a long history and unique creativity. However, the subjectivity of pulse diagnosis in traditional Chinese medicine is very strong, which often lacks the support of quantitative data. Under the background of modern medicine paying more and more attention to quantification and objectification, it is difficult to recognize the pulse diagnosis of traditional Chinese medicine based on doctors' individual pulse cutting, let alone to push the pulse diagnosis of traditional Chinese medicine to internationalization. Therefore, how to extract pulse according to TCM theory has become a problem that must be solved in engineering. In this paper, a pulse detection system based on flexible array sensor is developed. In this paper, a special pulse transducer is made with silica gel. It is composed of a seven-channel cylindrical semi-closed cavity, which can contact well with the skin and avoid the compression or injury of the skin by the rigid probe during the long period of acquisition. A pressure control system is designed to monitor and control the pulse extraction pressure. The pulse pulsation is sensed by the way of air pressure conduction, and the corresponding signal processing circuit is set up on the basis of which, the pulse signal is extracted and amplified. An A / D acquisition system based on USB-7660 is constructed to display and store multi-channel pulse signals. Finally, the prototype is debugged and calibrated online, and the accuracy and repeatability of the prototype are demonstrated and the best pulse diagram is obtained. The experimental results show that the system can not only collect the seven channels 2-D pulse map effectively, but also clearly observe the pulse width of the subject, and reconstruct the three-dimensional conduction topographic map of the corresponding pulse wave. The innovation of the pulse detection system based on flexible array sensor in this paper is to design a flexible pulse transducer which simulates the pulse at the fingertip, and realizes the acquisition of multi-channel pulse signals by the way of air pressure conduction. It provides a new method for the objectification and visualization of TCM.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：R318.0;R241

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本文編號(hào)：2298803