本(ben)實用新型涉(she)及醫療設備領(ling)域,特別涉(she)及基(ji)于體(ti)表空(kong)間電勢的心電測量設備。
背景技術:
心(xin)電是表(biao)征健康狀況的(de)(de)重要指標,現有(you)的(de)(de)心(xin)電測(ce)(ce)量(liang)設備(bei)大都為(wei)(wei)基于導聯法的(de)(de)測(ce)(ce)量(liang)設備(bei),使用時需(xu)要將若(ruo)干個電極分別置(zhi)于人(ren)體上的(de)(de)特定(ding)位置(zhi),并(bing)需(xu)要將該測(ce)(ce)量(liang)設備(bei)與(yu)心(xin)電圖機連接(jie)以(yi)描記出心(xin)電圖。傳統的(de)(de)心(xin)電測(ce)(ce)量(liang)是將Ag/AgCl電極黏貼于病(bing)(bing)人(ren)的(de)(de)身體上,用導聯線連接(jie)電極和檢測(ce)(ce)儀器,通過放(fang)大、濾波以(yi)后進行顯示和打印,作為(wei)(wei)醫生(sheng)對病(bing)(bing)人(ren)病(bing)(bing)情的(de)(de)診斷的(de)(de)依據。但有(you)些病(bing)(bing)人(ren)并(bing)不適合黏貼電極,比如說新生(sheng)兒、燒(shao)傷病(bing)(bing)人(ren)等(deng),會對監測(ce)(ce)對象和醫生(sheng)產(chan)生(sheng)麻煩。
對比文(wen)件(CN201220073456.7)公開了一(yi)種基(ji)于(yu)體(ti)表(biao)空間(jian)電(dian)勢的(de)心電(dian)測量(liang)設備,設有可用(yong)于(yu)感應被測人體(ti)體(ti)表(biao)周(zhou)圍(wei)微弱電(dian)場大(da)小及其(qi)變化的(de)耦(ou)合電(dian)容中的(de)一(yi)個或兩個極板(ban)、用(yong)于(yu)將所(suo)述極板(ban)上(shang)聚(ju)集的(de)電(dian)荷(he)(he)量(liang)轉(zhuan)換為(wei)電(dian)壓(ya)量(liang)并放大(da)的(de)電(dian)荷(he)(he)放大(da)器、對所(suo)述電(dian)荷(he)(he)放大(da)器輸出(chu)的(de)電(dian)壓(ya)信(xin)號(hao)進行(xing)放大(da)、濾波處(chu)理的(de)信(xin)號(hao)調理電(dian)路。但是(shi)還存在(zai)信(xin)號(hao)處(chu)理過程復雜(za),容易(yi)受到雜(za)波干(gan)擾等問題。
技術實現要素:
為了克服(fu)現(xian)(xian)有(you)技術的(de)不(bu)足,本實(shi)用新型的(de)目的(de)在(zai)于(yu)提供感應式(shi)心電(dian)(dian)測(ce)量裝置,其能解決傳統的(de)心電(dian)(dian)測(ce)量需要將Ag/AgCl電(dian)(dian)極黏貼于(yu)病人身(shen)體上(shang),現(xian)(xian)有(you)的(de)基(ji)于(yu)體表空(kong)間電(dian)(dian)勢的(de)心電(dian)(dian)測(ce)量設(she)備信號處理過程復(fu)雜,極板容易(yi)受(shou)濕度、灰塵(chen)等影響,模數轉(zhuan)換(huan)精度差的(de)問(wen)題。
本(ben)實(shi)用新型的(de)目的(de)采用以(yi)下技(ji)術方案實(shi)現(xian):
一種感應式心(xin)電測(ce)量裝置,包括:
電勢(shi)場傳感器,用于輸出初始(shi)心電信號;
前端(duan)濾波放(fang)大單元,用于對所述初始(shi)心電信號進行前端(duan)濾波放(fang)大;
前(qian)端模數轉換單(dan)元,用于將前(qian)端濾波放大后的(de)初(chu)始(shi)心電信(xin)號(hao)轉換為前(qian)端數字心電信(xin)號(hao);
數(shu)字(zi)處(chu)理單元,用于對(dui)所述前端數(shu)字(zi)心(xin)電信(xin)號(hao)進(jin)行數(shu)字(zi)信(xin)號(hao)處(chu)理;
前(qian)端數(shu)模轉(zhuan)換單元,用于將數(shu)字信號處理后(hou)的前(qian)端數(shu)字心(xin)電信號轉(zhuan)換為前(qian)端模擬心(xin)電信號;
外部電阻網絡,用(yong)于對所(suo)述前(qian)端模擬心電信(xin)號進(jin)行(xing)分壓,得到(dao)肢體心電信(xin)號;
后端濾波放大(da)單元,用于對所述肢體(ti)心電(dian)信號(hao)(hao)進行后端濾波放大(da),得到(dao)后端模擬心電(dian)信號(hao)(hao);
后端(duan)模數轉(zhuan)換單元,用于將所述(shu)后端(duan)模擬心(xin)電信號轉(zhuan)換為后端(duan)數字心(xin)電信號;
主控(kong)制(zhi)器,用于對所述(shu)后端(duan)數(shu)字心電(dian)(dian)信號進行(xing)處理,得到心電(dian)(dian)參數(shu)。
優(you)選的,所(suo)述感應式心電測量裝置還包括反饋單(dan)元,所(suo)述反饋單(dan)元將前端濾波放(fang)大后的初始(shi)心電信(xin)號差分放(fang)大,作為用作心電參(can)考電位(wei)的反饋信(xin)號。
優(you)選的所述(shu)后端(duan)濾波(bo)放(fang)大單元包括(kuo)濾波(bo)部(bu)(bu)件(jian)、放(fang)大部(bu)(bu)件(jian)、差分部(bu)(bu)件(jian)、再濾波(bo)部(bu)(bu)件(jian)和再放(fang)大部(bu)(bu)件(jian),所述(shu)濾波(bo)部(bu)(bu)件(jian)、放(fang)大部(bu)(bu)件(jian)、差分部(bu)(bu)件(jian)、再濾波(bo)部(bu)(bu)件(jian)和再放(fang)大部(bu)(bu)件(jian)依次電連接。
優選的,所(suo)述數字處理單(dan)元包括數字濾(lv)(lv)波(bo)部(bu)件(jian)(jian)和(he)數字差分(fen)部(bu)件(jian)(jian),所(suo)述數字濾(lv)(lv)波(bo)部(bu)件(jian)(jian)和(he)數字差分(fen)部(bu)件(jian)(jian)電連接。
優選(xuan)的,所述感(gan)應式心電測(ce)量裝置還包括:
第(di)一(yi)模擬開(kai)關,用于(yu)切換所(suo)述(shu)電勢(shi)(shi)場(chang)傳感器(qi),所(suo)述(shu)第(di)一(yi)模擬開(kai)關電連接所(suo)述(shu)電勢(shi)(shi)場(chang)傳感器(qi)以及前端濾(lv)波(bo)放大單元。
第二模(mo)擬開關,用(yong)于選擇前端(duan)模(mo)擬心電(dian)信號對應(ying)的外部(bu)電(dian)阻網(wang)絡(luo)端(duan)口(kou),所述第二模(mo)擬開關電(dian)連接所述前端(duan)數(shu)模(mo)轉換單(dan)元以及外部(bu)電(dian)阻網(wang)絡(luo)。
優選的(de)(de),所(suo)述(shu)(shu)電(dian)勢場傳(chuan)(chuan)感(gan)(gan)器(qi)安裝(zhuang)于心(xin)(xin)電(dian)探(tan)頭上,所(suo)述(shu)(shu)心(xin)(xin)電(dian)探(tan)頭包(bao)括基板和(he)用于檢(jian)測心(xin)(xin)電(dian)探(tan)頭是否(fou)脫(tuo)(tuo)落(luo)的(de)(de)脫(tuo)(tuo)落(luo)檢(jian)測傳(chuan)(chuan)感(gan)(gan)器(qi),所(suo)述(shu)(shu)脫(tuo)(tuo)落(luo)檢(jian)測傳(chuan)(chuan)感(gan)(gan)器(qi)位于所(suo)述(shu)(shu)基板用于檢(jian)測的(de)(de)一側,所(suo)述(shu)(shu)脫(tuo)(tuo)落(luo)檢(jian)測傳(chuan)(chuan)感(gan)(gan)器(qi)與所(suo)述(shu)(shu)感(gan)(gan)應式心(xin)(xin)電(dian)測量裝(zhuang)置電(dian)連(lian)接。
優選的,所述脫落檢測傳(chuan)感(gan)器(qi)包(bao)括光電(dian)傳(chuan)感(gan)器(qi),所述光電(dian)傳(chuan)感(gan)器(qi)包(bao)括紅外(wai)(wai)發(fa)射(she)(she)管(guan)(guan)和(he)紅外(wai)(wai)接(jie)收管(guan)(guan),所述紅外(wai)(wai)發(fa)射(she)(she)管(guan)(guan)和(he)紅外(wai)(wai)接(jie)收管(guan)(guan)相(xiang)對設置。
優選的(de),所述(shu)脫落檢測傳感器(qi)(qi)包(bao)括(kuo)人體(ti)紅外(wai)熱釋電(dian)(dian)(dian)傳感器(qi)(qi),所述(shu)人體(ti)紅外(wai)熱釋電(dian)(dian)(dian)傳感器(qi)(qi)包(bao)括(kuo)兩(liang)個互相(xiang)串聯(lian)或并聯(lian)的(de)熱釋電(dian)(dian)(dian)元,兩(liang)個熱釋電(dian)(dian)(dian)元的(de)電(dian)(dian)(dian)極化方向相(xiang)反。
優選(xuan)的,所述(shu)電(dian)勢場(chang)傳感器為EPIC傳感器或電(dian)場(chang)傳感器。
相比(bi)現有(you)技術,本實(shi)用(yong)新型(xing)的(de)有(you)益效(xiao)果(guo)在于:使(shi)用(yong)感應式心(xin)(xin)(xin)電(dian)(dian)測量裝置(zhi),不用(yong)黏貼Ag/AgCl電(dian)(dian)極(ji),直接(jie)或隔著衣物接(jie)觸皮膚(fu)即可(ke)很(hen)方(fang)便地進行(xing)心(xin)(xin)(xin)電(dian)(dian)檢測;心(xin)(xin)(xin)電(dian)(dian)探(tan)頭中的(de)電(dian)(dian)勢場傳感器輸出的(de)初始(shi)心(xin)(xin)(xin)電(dian)(dian)信(xin)號(hao)經前端濾波放大、數字處(chu)理和外部電(dian)(dian)阻(zu)網絡(luo)進行(xing)分壓,繼而通過后級(ji)的(de)電(dian)(dian)路提取出有(you)效(xiao)信(xin)號(hao)。其中外部電(dian)(dian)阻(zu)網絡(luo)模擬人(ren)體四肢(zhi)阻(zu)抗(kang),能(neng)夠(gou)提高心(xin)(xin)(xin)電(dian)(dian)的(de)輸入阻(zu)抗(kang),具有(you)更(geng)高的(de)共(gong)模抑制比(bi),抗(kang)干擾能(neng)力也更(geng)強。
附圖說明
圖1是本實用新型實施例(li)一提(ti)供的(de)感應式心電(dian)測量裝置的(de)結構示意圖;
圖(tu)2是本實用新型實施(shi)例二提供(gong)的(de)感(gan)應式心(xin)電測量裝置的(de)結構示意(yi)圖(tu);
圖3是本實用新型(xing)實施例三提供(gong)的心(xin)電(dian)探頭的結構示意圖。
圖4是本實(shi)用新型(xing)實(shi)施(shi)例四提供的(de)心電探(tan)頭的(de)結(jie)構示意圖。
圖(tu)5是圖(tu)4的使用示(shi)意圖(tu)。
具體實施方式
上(shang)述說(shuo)明僅是本(ben)實(shi)用(yong)(yong)新型技術方案的概(gai)述,為了(le)能夠(gou)(gou)更清楚了(le)解(jie)本(ben)實(shi)用(yong)(yong)新型的技術手段,而可依照說(shuo)明書的內容予(yu)以實(shi)施,并且為了(le)讓本(ben)實(shi)用(yong)(yong)新型的上(shang)述和其他目(mu)的、特征和優(you)點能夠(gou)(gou)更明顯易懂,以下(xia)特舉(ju)較佳實(shi)施例,并配合附圖,詳細說(shuo)明如下(xia)。
實施例一:
如圖1所(suo)示的(de)感應式心電(dian)測量裝置,包括:
電(dian)勢場(chang)傳(chuan)感(gan)器(qi)101,用于輸出初始心電(dian)信(xin)號;
前端(duan)濾(lv)波放(fang)大單元102,用于對(dui)初始(shi)心電信(xin)號(hao)進行前端(duan)濾(lv)波放(fang)大;
前(qian)(qian)端模數(shu)轉(zhuan)換單元103,用于將前(qian)(qian)端濾波(bo)放大(da)后(hou)的初(chu)始心(xin)電信號轉(zhuan)換為前(qian)(qian)端數(shu)字心(xin)電信號;
數(shu)字(zi)處(chu)理(li)(li)單元(yuan)104,用(yong)于(yu)對前端(duan)數(shu)字(zi)心電(dian)信號(hao)進(jin)行數(shu)字(zi)處(chu)理(li)(li);
前端數模(mo)轉(zhuan)(zhuan)換單元(yuan)105,用(yong)于(yu)將數字(zi)(zi)處(chu)理后(hou)的前端數字(zi)(zi)心電信(xin)號(hao)轉(zhuan)(zhuan)換為(wei)前端模(mo)擬(ni)心電信(xin)號(hao);
外部(bu)電阻網絡106,用于對(dui)前端模擬心電信(xin)號(hao)(hao)進行分壓,得(de)到肢體心電信(xin)號(hao)(hao);
后(hou)端濾波放大(da)單元107,用于對肢體心電信號(hao)進行后(hou)端濾波放大(da),得到后(hou)端模擬心電信號(hao);
后(hou)端(duan)(duan)模數(shu)轉(zhuan)換單元(yuan)108,用于將后(hou)端(duan)(duan)模擬心電信(xin)號(hao)轉(zhuan)換為后(hou)端(duan)(duan)數(shu)字(zi)心電信(xin)號(hao);
主控制器109,用于對(dui)后端(duan)數(shu)字心電信(xin)號進(jin)行處理,得(de)到心電參數(shu)。
電(dian)(dian)(dian)勢場傳(chuan)感器(qi)(qi)101可(ke)(ke)以設置在(zai)心電(dian)(dian)(dian)探頭上(shang),也可(ke)(ke)以安(an)裝于(yu)病床或椅(yi)子的對應位置處。電(dian)(dian)(dian)勢場傳(chuan)感器(qi)(qi)101可(ke)(ke)以實(shi)現讓心電(dian)(dian)(dian)圖測(ce)(ce)量變得很(hen)簡單(dan),無需(xu)(xu)很(hen)多導(dao)線纏繞(rao)、無需(xu)(xu)躺在(zai)專用的病床上(shang)、也無需(xu)(xu)在(zai)皮膚上(shang)涂(tu)抹導(dao)電(dian)(dian)(dian)液,只需(xu)(xu)要用電(dian)(dian)(dian)勢場傳(chuan)感器(qi)(qi)101隔著(zhu)介質(例如衣服,棉布(bu),紗布(bu)等)測(ce)(ce)量空(kong)間(jian)中交流信號即(ji)可(ke)(ke)。檢測(ce)(ce)信號頻率范(fan)圍(wei)從0.05Hz到200MHz不等,頻率范(fan)圍(wei)控制可(ke)(ke)以通(tong)過(guo)編程調(diao)整,傳(chuan)感器(qi)(qi)輸出信號為方波信號,帶寬從0.5~40Hz。
一種實現方式是,可編程片上系統(PSOC)內部(bu)集成(cheng)的(de)(de)(de)高精(jing)度模(mo)擬(ni)器件(包括前端濾波(bo)放大(da)單(dan)元102)將(jiang)微弱(ruo)的(de)(de)(de)電(dian)(dian)(dian)勢(shi)場(chang)信(xin)(xin)(xin)號轉(zhuan)換(huan)成(cheng)電(dian)(dian)(dian)壓(ya)信(xin)(xin)(xin)號,此時的(de)(de)(de)電(dian)(dian)(dian)壓(ya)信(xin)(xin)(xin)號噪聲很(hen)大(da),經過前端模(mo)數(shu)轉(zhuan)換(huan)單(dan)元103 和數(shu)字處理(li)單(dan)元104(典型(xing)的(de)(de)(de)為單(dan)片機(ji)或(huo)DSP)處理(li)后(hou),電(dian)(dian)(dian)壓(ya)信(xin)(xin)(xin)號(或(huo)人(ren)(ren)體(ti)(ti)(ti)生(sheng)理(li)電(dian)(dian)(dian)信(xin)(xin)(xin)號)有(you)(you)了(le)一定的(de)(de)(de)錐形(xing),前端數(shu)模(mo)轉(zhuan)換(huan)單(dan)元105將(jiang)數(shu)字信(xin)(xin)(xin)號轉(zhuan)換(huan)成(cheng)模(mo)擬(ni)信(xin)(xin)(xin)號。外(wai)部(bu)電(dian)(dian)(dian)阻(zu)網絡106的(de)(de)(de)設計模(mo)擬(ni)的(de)(de)(de)是人(ren)(ren)體(ti)(ti)(ti)四肢(zhi)的(de)(de)(de)阻(zu)抗原理(li),就(jiu)好比前端數(shu)模(mo)轉(zhuan)換(huan)單(dan)元105輸出人(ren)(ren)體(ti)(ti)(ti)的(de)(de)(de)心臟活動對應的(de)(de)(de)微弱(ruo)的(de)(de)(de)心電(dian)(dian)(dian)信(xin)(xin)(xin)號,心電(dian)(dian)(dian)信(xin)(xin)(xin)號經過外(wai)部(bu)電(dian)(dian)(dian)阻(zu)網絡106(好比人(ren)(ren)的(de)(de)(de)肢(zhi)體(ti)(ti)(ti)阻(zu)抗),即(ji)產(chan)生(sheng)差異的(de)(de)(de)電(dian)(dian)(dian)壓(ya)差,有(you)(you)了(le)人(ren)(ren)體(ti)(ti)(ti)電(dian)(dian)(dian)信(xin)(xin)(xin)號的(de)(de)(de)壓(ya)差,后(hou)級的(de)(de)(de)模(mo)擬(ni)硬件電(dian)(dian)(dian)路可以更(geng)有(you)(you)效地提(ti)取出有(you)(you)用信(xin)(xin)(xin)號。
實施例二:
如圖2所示的(de)感應式(shi)心(xin)電(dian)測量(liang)裝(zhuang)置,201-209依(yi)次對應于實施例一中的(de)101-109,其中202包括濾波器和放大器。
后(hou)端(duan)濾(lv)波放(fang)(fang)(fang)大(da)(da)單(dan)元(yuan)(yuan)207包(bao)括(kuo)濾(lv)波部(bu)件(jian)(jian)2071、放(fang)(fang)(fang)大(da)(da)部(bu)件(jian)(jian)2072、差(cha)(cha)分(fen)部(bu)件(jian)(jian)2073、再(zai)(zai)(zai)濾(lv)波部(bu)件(jian)(jian)2074和(he)(he)再(zai)(zai)(zai)放(fang)(fang)(fang)大(da)(da)部(bu)件(jian)(jian)2075,濾(lv)波部(bu)件(jian)(jian)2071、放(fang)(fang)(fang)大(da)(da)部(bu)件(jian)(jian)2072、差(cha)(cha)分(fen)部(bu)件(jian)(jian)2073、再(zai)(zai)(zai)濾(lv)波部(bu)件(jian)(jian)2074和(he)(he)再(zai)(zai)(zai)放(fang)(fang)(fang)大(da)(da)部(bu)件(jian)(jian)2075 依次電(dian)(dian)連(lian)接(jie)。后(hou)端(duan)濾(lv)波放(fang)(fang)(fang)大(da)(da)單(dan)元(yuan)(yuan)207可以是(shi)分(fen)立元(yuan)(yuan)件(jian)(jian)構成,模(mo)擬硬件(jian)(jian)電(dian)(dian)路對外部(bu)電(dian)(dian)阻網絡206輸(shu)入的(de)信(xin)號(hao)進(jin)行濾(lv)波、放(fang)(fang)(fang)大(da)(da)、差(cha)(cha)分(fen)、再(zai)(zai)(zai)濾(lv)波、再(zai)(zai)(zai)放(fang)(fang)(fang)大(da)(da)等(deng)(deng)一(yi)系列(lie)的(de)調理(li)(li)電(dian)(dian)路后(hou)再(zai)(zai)(zai)由后(hou)端(duan)模(mo)數轉換(huan)單(dan)元(yuan)(yuan)208采樣,完成模(mo)擬信(xin)號(hao)的(de)提(ti)取過(guo)程。心(xin)電(dian)(dian)信(xin)號(hao)經過(guo)主控(kong)制(zhi)(zhi)器209的(de)濾(lv)波算法(fa)(fa),增(zeng)益控(kong)制(zhi)(zhi)算法(fa)(fa),心(xin)電(dian)(dian)信(xin)號(hao)QRS波提(ti)取算法(fa)(fa),心(xin)率計算算法(fa)(fa)等(deng)(deng)處理(li)(li)后(hou),輸(shu)出(chu)心(xin)電(dian)(dian)波形信(xin)號(hao)和(he)(he)心(xin)率值等(deng)(deng)參數。感應(ying)式(shi)心(xin)電(dian)(dian)測(ce)量裝置還包(bao)括(kuo)交(jiao)互單(dan)元(yuan)(yuan)210,包(bao)括(kuo)顯(xian)示器、打印機(ji)(ji)和(he)(he)鍵盤等(deng)(deng)輸(shu)出(chu)、輸(shu)入裝置,交(jiao)互單(dan)元(yuan)(yuan)典型的(de)為監護(hu)儀上位機(ji)(ji)。
數字處理單(dan)元(yuan)204包(bao)括數字濾波部(bu)(bu)件(jian)和數字差(cha)分部(bu)(bu)件(jian),數字濾波部(bu)(bu)件(jian)和數字差(cha)分部(bu)(bu)件(jian)電連接。
感(gan)應式(shi)心(xin)電(dian)(dian)測量裝置(zhi)還包(bao)括反(fan)饋(kui)單元2022,反(fan)饋(kui)單元2022將前端濾波(bo)放(fang)大后的初(chu)始心(xin)電(dian)(dian)信(xin)(xin)號(hao)差(cha)分放(fang)大,作(zuo)為用(yong)作(zuo)心(xin)電(dian)(dian)參考電(dian)(dian)位的反(fan)饋(kui)信(xin)(xin)號(hao)。
感應(ying)式心電測量裝置還包括第一模擬開關2011,用(yong)于切換電勢場傳(chuan)感器201,第一模擬開關2011電連接于電勢場傳(chuan)感器201以及前(qian)端(duan)濾波放大(da)單元202。
第二模(mo)擬開關(guan)2061,用(yong)于選擇前端模(mo)擬心電信號對應的外部電阻網(wang)絡206的端口(kou),第二模(mo)擬開關(guan)2061電連接于前端數模(mo)轉換單元 205以及外部電阻網(wang)絡206。
第一(yi)模擬開(kai)關(guan)2011與(yu)第二(er)模擬開(kai)關(guan)2061可以實(shi)現(xian)選擇感(gan)(gan)應式(shi)(shi)心(xin)電(dian)(dian)(dian)(dian)測量(liang)(liang)裝(zhuang)(zhuang)置要(yao)所處理的(de)(de)對(dui)應的(de)(de)電(dian)(dian)(dian)(dian)勢(shi)場(chang)(chang)(chang)傳(chuan)(chuan)(chuan)(chuan)感(gan)(gan)器201的(de)(de)心(xin)電(dian)(dian)(dian)(dian)信號(hao)(hao)。優(you)選的(de)(de),感(gan)(gan)應式(shi)(shi)心(xin)電(dian)(dian)(dian)(dian)測量(liang)(liang)裝(zhuang)(zhuang)置包(bao)括3個(ge)(ge)、4個(ge)(ge)、5個(ge)(ge)、7個(ge)(ge)或10個(ge)(ge)電(dian)(dian)(dian)(dian)勢(shi)場(chang)(chang)(chang)傳(chuan)(chuan)(chuan)(chuan)感(gan)(gan)器201,用于(yu)(yu)測試不同位置的(de)(de)電(dian)(dian)(dian)(dian)位信號(hao)(hao),實(shi)現(xian)多導聯(lian)心(xin)電(dian)(dian)(dian)(dian)參數。包(bao)含3個(ge)(ge)電(dian)(dian)(dian)(dian)勢(shi)場(chang)(chang)(chang)傳(chuan)(chuan)(chuan)(chuan)感(gan)(gan)器201時,電(dian)(dian)(dian)(dian)勢(shi)場(chang)(chang)(chang)傳(chuan)(chuan)(chuan)(chuan)感(gan)(gan)器201分別安裝(zhuang)(zhuang)于(yu)(yu)左臂(LA)、右臂(RA)和左腿(tui)(tui)(LL),測量(liang)(liang)LA和RA、LL和RA 及LL和LA兩點間的(de)(de)電(dian)(dian)(dian)(dian)位差分別稱為標準I、II、III導聯(lian)。反(fan)饋(kui)單(dan)元(yuan)2022輸(shu)(shu)出的(de)(de)反(fan)饋(kui)信號(hao)(hao)作為心(xin)電(dian)(dian)(dian)(dian)參考電(dian)(dian)(dian)(dian)位,相當于(yu)(yu)傳(chuan)(chuan)(chuan)(chuan)統的(de)(de)右腿(tui)(tui)驅動電(dian)(dian)(dian)(dian)路。優(you)選的(de)(de)反(fan)饋(kui)單(dan)元(yuan)2022輸(shu)(shu)出反(fan)饋(kui)信號(hao)(hao)給導電(dian)(dian)(dian)(dian)布,人坐(zuo)在(zai)導電(dian)(dian)(dian)(dian)布上可以消除靜電(dian)(dian)(dian)(dian)等因素的(de)(de)干擾。數字處理單(dan)元(yuan)204可以調節反(fan)饋(kui)單(dan)元(yuan)2022中放大(da)器的(de)(de)增(zeng)益。另一(yi)種情形是(shi),右腿(tui)(tui)上也安裝(zhuang)(zhuang)一(yi)個(ge)(ge)電(dian)(dian)(dian)(dian)勢(shi)場(chang)(chang)(chang)傳(chuan)(chuan)(chuan)(chuan)感(gan)(gan)器201,也就(jiu)是(shi)說感(gan)(gan)應式(shi)(shi)心(xin)電(dian)(dian)(dian)(dian)測量(liang)(liang)裝(zhuang)(zhuang)置包(bao)括4個(ge)(ge)電(dian)(dian)(dian)(dian)勢(shi)場(chang)(chang)(chang)傳(chuan)(chuan)(chuan)(chuan)感(gan)(gan)器 201。
實施例三:
如圖3所示的(de)(de)心(xin)(xin)電(dian)(dian)探頭(tou),用(yong)于(yu)為(wei)心(xin)(xin)電(dian)(dian)裝(zhuang)置(zhi)提(ti)供(gong)心(xin)(xin)電(dian)(dian)信號(hao)。包(bao)括(kuo)基板(ban)10和(he)電(dian)(dian)勢(shi)場(chang)(chang)傳(chuan)(chuan)感(gan)器12,電(dian)(dian)勢(shi)場(chang)(chang)傳(chuan)(chuan)感(gan)器12位于(yu)基板(ban)10用(yong)于(yu)檢(jian)測(ce)(ce)的(de)(de)一側,電(dian)(dian)勢(shi)場(chang)(chang)傳(chuan)(chuan)感(gan)器可以為(wei)EPIC傳(chuan)(chuan)感(gan)器或(huo)電(dian)(dian)場(chang)(chang)傳(chuan)(chuan)感(gan)器;還包(bao)括(kuo)用(yong)于(yu)檢(jian)測(ce)(ce)心(xin)(xin)電(dian)(dian)探頭(tou)是(shi)否(fou)脫落(luo)的(de)(de)脫落(luo)檢(jian)測(ce)(ce)傳(chuan)(chuan)感(gan)器11,脫落(luo)檢(jian)測(ce)(ce)傳(chuan)(chuan)感(gan)器 11位于(yu)基板(ban)10用(yong)于(yu)檢(jian)測(ce)(ce)的(de)(de)一側。在本實施例(li)中,脫落(luo)檢(jian)測(ce)(ce)傳(chuan)(chuan)感(gan)器 11為(wei)光(guang)(guang)電(dian)(dian)傳(chuan)(chuan)感(gan)器,光(guang)(guang)電(dian)(dian)傳(chuan)(chuan)感(gan)器包(bao)括(kuo)紅(hong)外發射管(guan)111和(he)紅(hong)外接收管(guan) 112,紅(hong)外發射管(guan)111和(he)紅(hong)外接收管(guan)112相對設置(zhi)。脫落(luo)檢(jian)測(ce)(ce)傳(chuan)(chuan)感(gan)器 11和(he)電(dian)(dian)勢(shi)場(chang)(chang)傳(chuan)(chuan)感(gan)器12的(de)(de)供(gong)電(dian)(dian)和(he)信號(hao)均(jun)經心(xin)(xin)電(dian)(dian)探頭(tou)的(de)(de)連接線引出(chu)連接到感(gan)應式心(xin)(xin)電(dian)(dian)測(ce)(ce)量裝(zhuang)置(zhi)上。
光(guang)電(dian)(dian)(dian)(dian)(dian)傳(chuan)感器采用反射(she)(she)(she)式原理,即紅外(wai)(wai)發射(she)(she)(she)管(guan)111和紅外(wai)(wai)接收(shou)(shou)管(guan) 112在同一平面(mian)成對(dui)設(she)置,主控電(dian)(dian)(dian)(dian)(dian)路(圖未(wei)示)根(gen)據(ju)信號(hao)調制原理控制紅外(wai)(wai)發射(she)(she)(she)管(guan)111發射(she)(she)(she)出(chu)特定光(guang)信號(hao),當探頭正面(mian)有異物(如(ru)人體(ti)皮膚)遮擋時,紅外(wai)(wai)發射(she)(she)(she)管(guan)111發射(she)(she)(she)出(chu)來的(de)(de)光(guang)信號(hao)將被反射(she)(she)(she)回來到光(guang)電(dian)(dian)(dian)(dian)(dian)傳(chuan)感器的(de)(de)方向(xiang),紅外(wai)(wai)接收(shou)(shou)管(guan)112則吸收(shou)(shou)反射(she)(she)(she)回來的(de)(de)光(guang)線,經(jing)光(guang)電(dian)(dian)(dian)(dian)(dian)轉換電(dian)(dian)(dian)(dian)(dian)路后,輸出(chu)相對(dui)應的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓幅值。而遮擋物與光(guang)電(dian)(dian)(dian)(dian)(dian)傳(chuan)感器之(zhi)間的(de)(de)距離遠(yuan)近的(de)(de)判斷(duan),可以經(jing)過一定次數的(de)(de)實驗總結出(chu)電(dian)(dian)(dian)(dian)(dian)壓幅值與距離的(de)(de)關系得(de)到。
當紅(hong)外(wai)接收管112接收不到信(xin)號或光信(xin)號太(tai)弱時,可以相應(ying)的(de)判定探頭脫落(luo)或探頭離皮(pi)膚(fu)太(tai)遠。
實施例四:
如圖4和(he)5所示的心(xin)電(dian)(dian)探頭(tou),包括基(ji)(ji)板(ban)20和(he)電(dian)(dian)勢(shi)場傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)22,電(dian)(dian)勢(shi)場傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)22位于(yu)基(ji)(ji)板(ban)20用(yong)于(yu)檢(jian)(jian)測(ce)(ce)(ce)(ce)的一(yi)側(ce),還(huan)包括用(yong)于(yu)檢(jian)(jian)測(ce)(ce)(ce)(ce)心(xin)電(dian)(dian)探頭(tou)是(shi)否脫落(luo)(luo)的脫落(luo)(luo)檢(jian)(jian)測(ce)(ce)(ce)(ce)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)21和(he)23,脫落(luo)(luo)檢(jian)(jian)測(ce)(ce)(ce)(ce)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)21和(he) 23位于(yu)基(ji)(ji)板(ban)10用(yong)于(yu)檢(jian)(jian)測(ce)(ce)(ce)(ce)的一(yi)側(ce)。其中脫落(luo)(luo)檢(jian)(jian)測(ce)(ce)(ce)(ce)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)21為光(guang)電(dian)(dian)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi),光(guang)電(dian)(dian)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)包括紅外(wai)發射(she)管(guan)211和(he)紅外(wai)接(jie)收管(guan)212,紅外(wai)發射(she)管(guan)211和(he)紅外(wai)接(jie)收管(guan)212相對設置;脫落(luo)(luo)檢(jian)(jian)測(ce)(ce)(ce)(ce)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)23為人體紅外(wai)熱(re)釋(shi)電(dian)(dian)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi),人體紅外(wai)熱(re)釋(shi)電(dian)(dian)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)包括兩個互相串聯或并聯的熱(re)釋(shi)電(dian)(dian)元(yuan)231,兩個熱(re)釋(shi)電(dian)(dian)元(yuan)231的電(dian)(dian)極(ji)化方向相反(fan)。脫落(luo)(luo)檢(jian)(jian)測(ce)(ce)(ce)(ce)傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)21和(he)23、電(dian)(dian)勢(shi)場傳(chuan)(chuan)(chuan)感(gan)(gan)器(qi)(qi)22的供電(dian)(dian)和(he)信號均(jun)經心(xin)電(dian)(dian)探頭(tou)的連(lian)接(jie)線引出連(lian)接(jie)到(dao)心(xin)電(dian)(dian)監測(ce)(ce)(ce)(ce)儀(yi)器(qi)(qi)上(shang)。
人(ren)體(ti)都(dou)有恒定的(de)(de)(de)(de)體(ti)溫,一(yi)般在37度,所以會發出(chu)特定波長10 微(wei)米(mi)(mi)左(zuo)右(you)的(de)(de)(de)(de)紅(hong)外(wai)(wai)線,人(ren)體(ti)紅(hong)外(wai)(wai)熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)傳感(gan)器(qi)就是(shi)(shi)靠探測(ce)人(ren)體(ti)發射(she)(she)的(de)(de)(de)(de) 10微(wei)米(mi)(mi)左(zuo)右(you)的(de)(de)(de)(de)紅(hong)外(wai)(wai)線而(er)進行工作的(de)(de)(de)(de)。人(ren)體(ti)紅(hong)外(wai)(wai)熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)傳感(gan)器(qi)包含兩(liang)個互(hu)相(xiang)串(chuan)聯(lian)或并聯(lian)的(de)(de)(de)(de)熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)元231,而(er)且其(qi)電(dian)(dian)(dian)極化方向正好相(xiang)反,環境背(bei)(bei)景(jing)輻射(she)(she)對兩(liang)個熱(re)(re)(re)釋(shi)元件幾乎具有相(xiang)同的(de)(de)(de)(de)作用,使環境背(bei)(bei)景(jing)產生的(de)(de)(de)(de)釋(shi)電(dian)(dian)(dian)效應(ying)相(xiang)互(hu)抵消(xiao),于(yu)是(shi)(shi)人(ren)體(ti)紅(hong)外(wai)(wai)熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)傳感(gan)器(qi)無信(xin)號輸出(chu)。但是(shi)(shi)當(dang)人(ren)侵入探測(ce)區域內,人(ren)體(ti)紅(hong)外(wai)(wai)輻射(she)(she)通過部分鏡(jing)面聚焦,并被熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)元231接收,兩(liang)片熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)元231接收到的(de)(de)(de)(de)熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)經信(xin)號處理而(er)輸出(chu)特定信(xin)號。同時(shi),人(ren)體(ti)紅(hong)外(wai)(wai)熱(re)(re)(re)釋(shi)電(dian)(dian)(dian)傳感(gan)器(qi)也可以輸出(chu)相(xiang)對應(ying)的(de)(de)(de)(de)人(ren)體(ti)體(ti)溫溫度值(zhi),即可判斷心電(dian)(dian)(dian)探頭(tou)是(shi)(shi)否脫落。
如果人(ren)(ren)(ren)體紅外(wai)熱釋(shi)電(dian)(dian)傳(chuan)感器(qi)(qi)(qi)接收不到人(ren)(ren)(ren)體發出的(de)波長10微米左右的(de)紅外(wai)線,或(huo)檢測到的(de)溫度不在人(ren)(ren)(ren)體體溫范圍內(nei),則處(chu)理電(dian)(dian)路(lu)判(pan)斷為探頭脫(tuo)落。當然,心電(dian)(dian)探頭只可以(yi)只包(bao)(bao)括脫(tuo)落檢測傳(chuan)感器(qi)(qi)(qi)22 而不包(bao)(bao)括脫(tuo)落檢測傳(chuan)感器(qi)(qi)(qi)21,即心電(dian)(dian)探頭包(bao)(bao)括光電(dian)(dian)傳(chuan)感器(qi)(qi)(qi)和人(ren)(ren)(ren)體紅外(wai)熱釋(shi)電(dian)(dian)傳(chuan)感器(qi)(qi)(qi)中的(de)一種或(huo)兩種。
對于本領域的(de)技術人員(yuan)來說(shuo),可根(gen)據以(yi)上(shang)描述的(de)技術方案以(yi)及(ji)(ji)(ji)構(gou)思,做出其它各種(zhong)相應(ying)(ying)的(de)改(gai)變以(yi)及(ji)(ji)(ji)變形(xing),而(er)所有的(de)這些(xie)改(gai)變以(yi)及(ji)(ji)(ji)變形(xing)都(dou)應(ying)(ying)該屬于本實(shi)用新型(xing)權利要求的(de)保護(hu)范圍(wei)之內。