the present invention is relates to an apparatus of an improvement on chest cardiogram sensor , especially refer to a device of cardiogram sensor fasten on chest and transmit measured digital signal of heartbeat by wireless or cable to receiver . human heart is organized from muscles which is different from usual muscles and called cardiac muscle . when cardiac muscles are in active , that means heart beat and generate electric current , cardiogram sensor detects and records electricity activity in the cardiac muscles of heart and translate into curve diagram . by the diagnosis of checking the curve reflects from the cardiogram sensor , heart disease and pathogenic like arrthymia , etc . can be found out immediately . that is , from the diagnosis of checking cardiogram curve , we can judge if the heart is regular or not . arrthymia always caused by the problem of heart conductive system , a doctor can judge from the curve shown by the cardiogram sensor to analysis and find out which part of the heart organ may have problem ; in addition , the heart status may be altered by various kinds of heart diseases and shown different cardiograms on the sensor . the burden of heart workload increased by the reason of long - term high blood pressure or valvular disease will cause thicker cardiac muscles to care about the premium workload , whereas under such condition the heart electricity activity changes and also changes the curve of the heart cardiogram , therefore checking the curve of the heart cardiogram can diagnose if the cardiac muscle is thicker or not , and by the way indirectly detects some other heart diseases which increase workload of cardiac muscles . when in acute cardiac muscle infarction , cardiogram sensor will also show special apparent curves , hence heart examination with cardiogram sensor is an important therapy to the patient of cardiac muscle infarction , even in the pre - stage of cardiac muscle infarction , the chest pang or coronary hypogenesis caused by coronary shrink will also detects by cardiogram sensor . in general , cardiogram sensor provides doctor many valuable information concerning related patients . accordingly , the present invention provides a portable apparatus which could fasten on chest to read the body digital signal of cardiogram , and send by wireless or cable cord to its receiver . it is not only monitor the user &# 39 ; s cardiogram from time to time , but also ready and convenient to be used outside of hospital . it is therefore a primary object of the present invention to provide an apparatus of improvement on the structure of chest cardiogram sensor . it is the further object of the present invention to provide a portable and instantly measurement of cardiogram data of chest type cardiogram sensor mechanism , for convenient use and assembly . the apparatus in accordance with the present invention primarily comprises a shell , electric board , two fixed belt , and two indecent mutual unconductivity rubber plate , and the shell is combined from bottom shell and top shell , and at the right and left edge of the bottom fixed two or multiple independent unconductivity metal plate or some other related conductive materials . whereas , the electric board included measurement circuits and emitter circuits assemble into the shell , at both edges of circuit board contact respectively with above mentioned metal plate or some other related materials by conductive rubber or metal plate . at the bottom of fixed belt set up two or multiple independent mutually unconductive long rubber conductive plates , while the fixed belt fitted at both edges of the shell to make the outer edge of the long metal plate press under both edge of bottom shell , and electrode of measurement circuit board connect with opposite conductive rubber plates to avoid mutual conductive . according to the description mentioned above , directly fasten the cardiogram sensor on the appropriate position of user &# 39 ; s chest . owing to the two sets of conductive rubber plate under the right and left ends of fixed belt connected with the electrode of measurement circuits respectively , and the conductive rubber plate further contacts with skin to get the signal data of heart electric activity , and send to measurement circuit board for calculation and translate the signal data into the digital signal , then transmit the digital signal to receiver so as to show the cardiogram . the receiver could fasten on the wrist or waist , not only portable , but also convenient . embodiments of the present invention will be described herein below by reference to the accompanying drawings and an adequate practical example : first of all , referring to fig1 , 3 , the apparatus in accordance with the present invention primarily comprise a shell 10 , circuit board 20 , two fixed belt 30 , and two independent mutual unconductivity rubber plate 40 at both right and left end of the fixed belt 30 , among which the shell 10 combined from bottom shell 12 and top shell 11 , and at the right and left edge of the bottom fixed two or multiple independent unconductivity metal plate 11 a or some other related conductive materials . whereas , circuit board 20 includes measurement circuits 21 and emitter circuits 22 , among which the two electrodes 21 a at both ends of measurement circuits 21 designed to connect with conductive rubber plate or metal piece 21 b , when assemble circuit board 20 into shell 10 , each conductive rubber plate or metal piece 21 b of electrode 21 a contact with metal plate 11 a ; and then the emitter circuits 22 function as sending measuring data to the receiver 23 which can be fasten on wrist or waist . furthermore , fixed belts 30 arrange at both ends of the shell 10 and press the outer end of conductive rubber plate 40 onto the metal plate 11 a at the shell 11 bottom so that conductive rubber plate can contact with circuit board 20 to form a loop circuit . please also refer to fig4 , an implementation of present invention directly fasten the cardiogram sensor on the appropriate position of user &# 39 ; s chest . the two sets of conductive rubber plate 40 connected with measurement circuits 21 respectively , and the conductive rubber plate 40 further contacts with skin to get the signal data of heart electric activity , and circuit board 20 translate the signal data into the digital signal , then transmit the signal to receiver 23 via emitter circuits 22 of the shell 10 so as to show the cardiogram or curve . in summary , the present invention “ an apparatus of improvement on the structure of chest cardiogram sensor ” fixed measurement circuits in the electric board to measure and get the calculated cardiogram data , and send to receiver which is portable for carry , assemble easily , convenient to use and receive cardiogram data immediately . many changes and modification in the above - mentioned embodiments of the invention can , of course , be carried out without departing from the scope thereof . accordingly , to promote the progress in science and the useful arts , the invention is disclosed and intended to be limited only by scope of the appended claim . fig1 is a perspective view of the present invention fig2 is a perspective view of an assembled cardiogram sensor fig3 is a cross sectional assembled perspective view of the present invention 1 — cardiogram sensor 10 — shell 20 — circuit board 30 — fixed belt 40 — conductive rubber plate 12 — bottom shell 11 — top shell 11 a — metal plate 21 — measurement circuits 21 a — electrode 21 b — conductive rubber or metal plate 22 — emitter circuit 23 — receiver
an apparatus of an improvement on the structure of chest cardiogram sensor fastened directly on the user &# 39 ; s chest combines from shell } electric board } two fixed belts } two or multiple pieces of independent electric conductivity rubber plate , by which electric board fitted in the shell contains electricity measurement circuits and emitter circuits , whereas measurement circuits could send measured cardiogram messages to the receiver through the emitter circuits by means of cable or cableless device , and meets the requirement of monitor the user &# 39 ; s cardiogram .