49 results about "Cardiographs" patented technology

The electrocardiograph (ECG) Shirt is an extremely elastic non-electric and non-mechanical method that creates a more secure bond to the skin and more accurate and standardized ECG electrode lead placement for men, women, and children. The ECG Shirt reduces unexpected movement or dislocation. Contrasted with much prior art that analyzes errors after the fact the ECG Shirt eliminates the potential for errors to occur. The ECG Shirt is capable of using most ECG devices with different types of electrode lead connectors or pads. The ECG Shirt facilitates not only twelve lead resting ECG testing but also exercise testing, monitoring, fifteen lead, and two different types of eighteen lead ECG testing. The ECG Shirt is a tool for teaching expert ECG electrode lead placement.

The invention relates to a multi-physiological signal multi-model interaction-based high-speed railway dispatcher stress detecting method. An electroencephalogram signal collecting device, a cardiograph collecting device and an eye movement collecting device are adopted to acquire corresponding physiological signals in a linkage way to be subjected to information collection, so that the stress states of high-speed railway dispatchers are judged; after characteristic selection, model training and information fusion processing, electroencephalogram, cardiograph and eye movement identification results which are analyzed on the basis of three models, i.e. a BP (Back Propagation) neural network model, a SVM (Support Vector Machine) model and an HMM (Hidden Markov Model) markov model, are subjected to information fusion, and better electroencephalogram, cardiograph and eye movement identification results are extracted; the electroencephalogram, cardiograph and eye movement identification results are fused again, and finally a fusion characteristic identification result is obtained to quickly judge the stress states of the high-speed railway dispatchers.

The invention belongs to the technical field of block chains, and relates to an autonomous number selection method and system based on a block chain. The method comprises the steps that a user appliesfor autonomously selecting a cardiograph communication number, and application information at least comprises a number selection service identifier and a hash value; The timestamp server node receives the application information and adds a timestamp to the application information, and the timestamp adding application information comprises a number selection service identifier and a hash value; The user node checks whether the Hash value in the stamp adding application information is the same as the Hash value in the application information of the user node or not, and if yes, signing and broadcasting are carried out; The accounting node of the block chain confirms whether the cardiograph communication number can be allocated to the user node; And after confirming that the cardiograph communication number can be distributed to the user node, the user node autonomously selects the operator node of the cardiograph to perform service communication with the user node, and signs an intelligent contract with the user node. According to the method, the problems of autonomous number selection and operator selection of a user are effectively solved, and a thorough decentralization effect ofblock chain construction is realized.

The invention relates to the field of image processing, and discloses an electrocardiogram image processing method and device, a medium and an electrocardiograph. The electrocardiogram image processing method comprises the steps of receiving electrocardiogram images, extracting a feature map of the electrocardiogram image; carrying out dimension reduction processing on the feature map to obtain anattention map; and extracting a feature matrix from the feature map and the attention map by using bilinear attention pool processing, performing adaptive weight learning and weighted fusion on the feature matrix by using multi-head self-attention processing to obtain an expression matrix, and performing multi-label classification on the electrocardiogram image based on the expression matrix. According to the method, electrocardiogram images can be directly interpreted, the method is not limited to use of traditional digital signals, meanwhile, tiny differences in electrocardiogram pieces canbe grasped, and therefore electrocardiogram anomalies can be classified, and the anti-noise capacity is high.

The invention relates to an electrocardiograph sensor mat (100), the mat (100) comprising a multitude of electrodes (104) for acquiring cardiac signals and a plug (200), wherein the electrodes (104) are connected to the plug (200) by electric wires (102), wherein the wires (102) are segmented by switches (202), wherein the switches (202) are switchable between a closed state and an open state, wherein in the closed state the electrodes (104) are electrically connected to the plug (200) and wherein in the open state the electrodes (104) are electrically isolated from the plug (200).

The invention comprises an apparatus and a method for operating a cardiac assist pump, comprising the steps of: (1) providing a cardiac monitor comprising: a cardiac output sensor including an activity sensor and at least two of: a pulse oximeter; an electrocardiogram meter; and a blood pressure monitor; (2) receiving time-varying cardiovascular input data, from the cardiac output sensor, related to a transient hemodynamic state of a cardiovascular system; (3) receiving and operating on time-varying activity input data, from the activity sensor, to generate cardiovascular state information; (4) sensing activity with the activity sensor to generate a target cardiovascular state; (5) repeating both the steps of receiving and operating to update the transient cardiovascular state information and the step of sensing to update the target cardiovascular state; and (6) directing the cardiac assist pump to adjust assisted blood flow, yielding the updated transient cardiovascular state, toward the target cardiovascular state.

The invention relates to an electrocardiograph sensor mat (100), the mat (100) comprising a multitude of electrodes (104) for acquiring cardiac signals and a plug (200), wherein the electrodes (104) are connected to the plug (200) by electric wires (102), wherein the wires (102) are segmented by switches (202), wherein the switches (202) are switchable between a closed state and an open state, wherein in the closed state the electrodes (104) are electrically connected to the plug (200) and wherein in the open state the electrodes (104) are electrically isolated from the plug (200).

The invention provides a novel noninvasive measuring method for a left ventricular end diastolic pressure, which belongs to the field of medical cardiovascular systems and can be applied to fundamental research of the field and clinical diagnosis and treatment of related diseases. At prevent, a noninvasive left ventricular end diastolic pressure measuring method is lacked in clinics and screening and accurate diagnosis of patients with suspicious and asymptomatic left ventricular end diastolic dysfunctions are restricted. The invention provides a method capable of non-invasively, accurately, simply and conveniently measuring the left ventricular end diastolic pressure; on the basis of the human body hemodynamic principle and the relation between pressure in each chamber of the heart and pressure in the lung, a pulmonary valve is open in diastole in advance by means of intrapulmonic pressure variation caused by Muller action; transpulmonary valvular pressure at the moment is non-invasively measured through a self-made face mask and an ultrasonic cardiograph; and right ventricular diastolic pressure can be non-invasively measured, so that the left ventricular end diastolic pressure is obtained.

The invention discloses a mobile electrocardiograph with a portable structure, and the electrocardiograph comprises a fixed frame and an electrocardiograph body; a fixed plate is fixedly connected tothe inner wall of the fixed frame, a motor is arranged on the upper surface of the center of the fixed plate, a transmission rod is arranged at the output end of the motor, a threaded rod is fixedly connected to the upper surface of the transmission rod, and a containing plate is rotationally connected to the upper surface of the threaded rod; an electrocardiograph body is arranged on the upper surface of the containing plate, fixing rods are fixedly connected to the lower surface of the fixing plate in a bilateral symmetry mode, locking blocks are slidably connected to the fixing rods in a penetrating mode, the opposite sides of the locking blocks are obliquely arranged, and elastic drawing type roller shutter belts are arranged on the sides, away from each other, of the locking blocks and wound around rotating shafts. A trapezoidal extrusion block is arranged between the two locking blocks, a lifting column is fixedly connected to the lower surface of the trapezoidal extrusion block,and a movable plate is fixedly connected to the lower surface of the lifting column. The electrocardiograph is fixed to the arm of the human body through the elastic drawing type roller shutter belt,the elastic drawing type roller shutter belt is locked through friction force, and adjustment is more convenient.

The invention belongs to the technical field of medical equipment, and particularly relates to a wrist strap type mobile electrocardiograph which comprises an electrocardiograph and a fixing unit. Thefixing unit comprises a shell, a first wrist strap, a second wrist strap, a pressing block, a first clamping block, a second clamping block, a third clamping block and a sliding block. According to the wrist strap type mobile electrocardiograph, the size of the wrist strap can be freely changed according to wrists of different sizes, so that the wrist strap type mobile electrocardiograph is suitable for being worn by different people, meanwhile, the redundant wrist strap is stored in the corresponding wrist strap after the position is fixed, and the situation that the redundant wrist strap makes contact with other objects to drive the wrist strap type mobile electrocardiograph to fall off the wrist is avoided; when the wrist moves, the contact surface of the wrist strap type mobile electrocardiograph and the wrist is tighter, so that the electrocardiograph is accurate in measurement, the physical state of a user can be reflected more accurately, and the contact part of the wrist straptype mobile electrocardiograph and the wrist is not prone to sweating, and odor is not generated; the wrist strap type mobile electrocardiograph is prevented from being soaked by sweat when making contact with the wrist, and the skin is prevented from being damaged.

The invention discloses a wrist strap self-locking type mobile electrocardiograph. The electrocardiograph comprises a portable electrocardiograph body and a fixing device fixed to the lower end of theportable electrocardiograph body, the fixing device comprises a first shell, the first shell is rectangular, a cavity is formed in the first shell, the two ends of the cavity are rotationally connected to a first roller correspondingly, and the two ends of the first roller are rotationally connected to the side walls of the cavity correspondingly. According to the invention, the roller is rotatably connected in the first shell, one ends of fixing belts are fixed on the roller, the other ends of the fixing belts extend out of a through groove in the side wall of the first shell, so that when the fixing belts are not used, the roller stores the fixing belts under the action of torsional springs, when the fixing belts are used, the fixing belts are pulled to make the fixing belts at the twoends make contact with each other, the two fixing belts are connected through a connecting device, and then the electrocardiograph is worn.

A portable electrocardiograph includes: a recording section configured to record data corresponding to electrocardiogram of a subject; a detecting section configured to detect approach of a portable device having a function to perform short-range wireless communication; and a control section configured to start recording of the data in the recording section in a case where it is satisfied a start condition including a fact that the approach of the device is detected by the detecting section.

The invention discloses a human body electrocardiogram rapid acquisition device in a natural state. The device comprises a bed and an electrocardiograph, the electrocardiograph is arranged on the rearside of the bed, a heating layer is arranged on the upper surface of the bed, a heating resistance wire is arranged in the heating layer, a cotton yarn insulating layer is arranged on the outer sideof the heating layer, the bed, the heating layer and the cotton yarn insulating layer are jointly provided with a plurality of mounting through holes, pressing mechanisms are arranged in the mountingthrough holes, a reciprocating assembly is arranged on the lower side of the bed, the reciprocating assembly comprises two reciprocating lead screws rotationally mounted through bearing seats, and thetwo reciprocating lead screws are arranged front and back. Heat generated by the heating resistance wire enables a patient not to catch a cold, meanwhile, the back of the patient can be repeatedly massaged, the patient can be rapidly relaxed and enters a natural state, electrocardiogram collection is conducted, and the heart rate accuracy is improved.

Provided herein are methods, systems, and computer program products for the detection of pulmonary hypertension comprising receiving voltage-time data of a plurality of leads of an electrocardiograph of a subject; generating a feature vector from the voltage-time data; providing the feature vector to a pretrained learning system; and receiving from the pretrained learning system an indication of the presence or absence of pulmonary hypertension in the subject.

Disclosed is an electrocardiograph (ECG) lead wire. The left electrode (120) and the right electrode (130) of the ECG lead wire are stacked and enclose an accommodation hole (101) for an electrode contact to pass through. At least one of the left electrode (120) and the right electrode (130) is made of an elastic material and/or is driven by an elastic member, so that the left electrode (120) and the right electrode (130) can move relative to each other under the action of an external force to widen the accommodation hole (101), and can move relative to each other under an elastic action force to narrow the accommodation hole (101). Since the size of the accommodation hole (101) can change, the electrode holder can be adapted to electrode contacts of various sizes on the market and makes same be firmly connected, thereby ensuring the stability and reliability of signal transmission.

The invention belongs to the field of heart detection equipment and instruments. A wrist strap self-locking type mobile electrocardiograph comprises a testing host and a wrist strap body; the wrist strap body comprises a first wrist strap and a second wrist strap; the testing host is arranged on the first wrist strap; the second wrist strap is divided into two sections; the two sections of the second wrist strap are connected through a self-locking device; the self-locking device and the testing host are oppositely arranged; the first wrist strap is sleeved with the second wrist strap; a first spring is arranged in the first wrist strap and the second wrist strap; and one end of the first spring is connected with the first wrist strap, and the other end of the first spring is connected with the second wrist strap. The first wrist strap and the second wrist strap are arranged in a sleeved mode and connected together through the first spring, the first wrist strap and the second wrist strap can relatively slide, the wrist strap body can be always tightly attached to the wrist of a user under the action of the contraction elasticity of the first spring, and therefore a gap between the testing host and the wrist of the tester is eliminated, and the situation that the testing result is affected by external illumination is avoided.

The invention belongs to the technical field of medical instruments, and particularly relates to an attached multi-lead dynamic electrocardiograph and a using method thereof. The attached multi-lead dynamic electrocardiograph comprises a battery box, and a first electrode buckle, a second electrode buckle, a third electrode buckle and a first adding module wire set are arranged at the bottom of the battery box; a display screen used for displaying an electrocardiogram is arranged in the middle of the recorder, a fourth electrode buckle and a fifth electrode buckle are arranged on the surface of the recorder, a first module wire set and a second module wire set are arranged on the two sides of the recorder, and a second adding module wire set is arranged at the bottom of the recorder. The structure is reasonable, various lead wires are not needed in the using process, replacement and maintenance are convenient, wearing is convenient, the weight is light, life is not affected, sleeping is not affected, the electrocardiogram examination effect is good, a backpack of the recorder is omitted, the burden is reduced, wearing is inconvenient, and the cost is reduced.