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52 results about "HEART THROBBING" patented technology

Organ manipulator having suction member supported with freedom to move relative to its support

InactiveUS6899670B2Reduce the amount requiredHemodynamic function is not compromisedDiagnosticsSurgical pincettesAdhesive discAbsorbent material
An organ manipulator including at least one suction member or adhesive disc mounted to a compliant joint, a flexible locking arm for mounting such suction member or compliant joint, and a method for retracting and suspending an organ in a retracted position using suction (or adhesive force) so that the organ is free to move normally (e.g., to beat or undergo other limited-amplitude motion) in at least the vertical direction during both steps. In preferred embodiments, a suction member exerts suction to retract a beating heart and suspend it in a retracted position during surgery. As the retracted heart beats, the compliant joint allows it to expand and contract freely (and otherwise move naturally) at least in the vertical direction so that hemodynamic function is not compromised. The suction member conforms or can be conformed to the organ anatomy, and its inner surface is preferably smooth and lined with absorbent material to improve traction without causing trauma to the organ. The compliant joint can connect the member to an arm which is adjustably mounted to a sternal retractor or operating table. The compliant joint can be a sliding ball joint, a hinged joint, a pin sliding in a slot, a universal joint, a spring assembly, or another compliant element. In preferred embodiments, the method includes the steps of affixing a suction member to a beating heart at a position concentric with the heart's apex, and applying suction to the heart while moving the member to retract the heart such that the heart has freedom to undergo normal beating motion at least in the vertical direction during retraction.
Owner:MAQUET CARDIOVASCULAR LLC

Methods and apparatus for forming anastomotic sites

Apparatus and methods are provided for forming a working space on the interior wall of a blood vessel, such as the aorta. The working space is isolated from blood flow and permits creation of an anastomotic hole and subsequent suturing of the hole to form an end-to-side anastomosis, even while the heart is beating. The apparatus comprises tools including inflatable barriers, such as cup-shaped balloons, which engage the inner wall of the blood vessel with minimum trauma and maximum sealing. In a first embodiment, the inflatable barrier is introduced through a penetration at the site of the anastomotic attachment. In a second embodiment, the inflatable barrier is introduced through a second penetration axially spaced-apart from the site of the anastomotic attachment.
Owner:MAGENTA MEDICAL CORP

Process and apparatus for detecting sleeping respiration force and use thereof

InactiveCN1923132AOvercome overload, lack of feeling unwellThe results are consistentCatheterRespiratory organ evaluationPediatricsBody movement
The invention relates to a method for detecting the breath force in sleep, relative device and application. Wherein, the invention is characterized in that: it uses pressure micro sensor to obtain the micro signals of heart beat, breath, and body movement in sleep, to input them into computer to be processed to form heart impact diagram; and uses the breath amplitude or its integral value of sleep heart impact diagram to represent breath force state, and uses the said breath amplitude or its integral value as the base. The invention can realize non-invasion detection on target.
Owner:BEIJING XINXING YANGSHENG TECHN CORP

In-vitro simulation device for interventional therapy of heart diseases

The invention relates to an in-vitro simulation device for interventional therapy of heart diseases. The in-vitro simulation device comprises a heart assembly used for simulating the heart of a humanbody and a power part used for simulating the beating frequency and amplitude of the heart. The heart assembly comprises an atrial component and a ventricular component, the atrial component comprisesa left atrium and a right atrium, and the ventricular component comprises a left ventricle and a right ventricle. The left ventricle is communicated with the left atrium and/or the right ventricle iscommunicated with the right atrium, and the left ventricle is provided with a mitral valve and/or the right ventricle is provided with a tricuspid valve; the power component is communicated with theleft ventricle and/or the right ventricle; according to the in-vitro simulation device, opening and closing of the mitral valve and/or the tricuspid valve are/is controlled by simulating the frequencyand amplitude of heart beat of a human body, so that an operator can simulate operation of a mitral valve and/or tricuspid valve treatment operation on the heart assembly by using an interventional medical instrument under the condition of heart beat; and the operation level of medical staff is improved, and research and development staff can conduct experimental study on medical instruments.
Owner:ZHEJIANG UNIV

Construction method of mouse ventricular aneurysm model

The invention discloses a construction method of a mouse ventricular aneurysm model, comprising the following steps: anesthetizing a mouse by inhaling isoflurane without mechanical ventilation; forming a small skin incision in the left chest to expose the intercostal space of the most violent cardiac beating after the mouse enters a relaxed state and does not have respiratory depression and dysphoria; forming a small hole between the ribs by using tissue forceps and hemostatic forceps, opening the pleura and pericardium, and slightly extruding the thorax of the mouse; ligating at a position 4-4.5 mm away from the origin of the coronary artery by adopting an absorbable 6-0 suture; ligating the left anterior descending branch and the half myocardium together; immediately putting the heart into the thoracic cavity after ligation, manually exhausting, and suturing and knotting. According to the method, a simple, repeatable and stable mouse ventricular aneurysm model can be manufactured, the model forming rate is high, the method can be used for researching before ventricular aneurysm formation and researching the internal mechanism of mouse ventricular aneurysm formation under different strains and in different states, and a theoretical basis is provided for treatment and prevention of ventricular aneurysm.
Owner:TIANJIN CITY THIRD CENT HOSPITAL

Novel peak extraction method for heart rate estimation

ActiveCN110731783ANot easy to feelLess susceptible to emotionsDiagnostic signal processingSensorsHuman bodyDisease
The invention relates to a novel peak extraction method for heart rate estimation. During the human heartbeats, minute vibration parallel to the axis of a spine of the human body can be generated, anda high-precision angle sensor is used for measuring the fine body pulsation which is caused by the human heartbeats; and the heart rate is the change period which is obtained through filter processing of electrical signals by using the sensor. The high-precision single-axis inclination sensor is installed at the position, near the human chest, of the bottom of an ordinary mattress so as to recordvibration and breathing movement of the heart, the inclination sensor can be used for acquiring BCG data, and detection of the maximum difference between locally adjacent wave peaks and troughs is corresponding to heartbeat detection of a BCG signal peak mode of a single heartbeat; and multiple times of judgment is performed so as to estimate the heart rate. The novel peak extraction method is not affected easily by the mood and emotion of a subject, tests and data record can be performed under the condition of no notices to the subject, early detection of heart diseases is facilitated through feature extraction and matching of a large amount of data about the heart rate.
Owner:杭州昊微科技有限公司

Heart rate and respiratory rate monitoring method and monitoring device thereof, blanket and mattress

The invention relates to the technical field of sleep monitoring, in particular to a heart rate and respiratory rate monitoring method and monitoring device thereof, a blanket and a mattress. The method comprises the steps: collecting a swing signal, caused by heartbeat and respiration, of an elastic part on the condition of lying on the elastic part by a human body; converting the acquired swingsignal into an angular velocity signal; converting the angular velocity signal into a frequency domain signal; acquiring a frequency value corresponding to a maximum value of the frequency domain signal in a preset respiratory rate range, namely the respiratory rate; and acquiring a frequency value corresponding to the maximum value of the frequency domain signal in a preset heart rate range, namely the heart rate. According to the invention, when a person lies down, a longitudinal impact is generated on the human body at the moment of cardiac impulse according to the heart BCG principle; thelying position swings up and down due to the change of the gravity center; the cardiac beat signal is converted into the angular velocity signal by collecting the swing signal and the angular velocitysignal is converted into the heart rate signal, so that the monitoring of the heart rate and the respiratory rate is completed.
Owner:GUANGZHOU 37 DEGREE SMART HOME CO LTD

Auscultation device suitable for heart and auscultation method of auscultation device

The invention discloses an auscultation device suitable for the heart and an auscultation method of the auscultation device. The auscultation device suitable for the heart comprises a data conversionconnector and at least one detection component which are connected together through a plurality of transmission lines, wherein the transmission lines are converged into a bus through the data conversion connector, the bus is connected with data display equipment, the data display equipment can display detection data in a chart form, each detection component comprises a plurality of folding panelsarranged in a mounting shell, a contact layer is arranged on the lower end face of the mounting shell and seals the mounting shell, the folding panels are mounted in the mounting shell in a linear array mode, two magnetic blocks are symmetrically arranged on the inner wall of the mounting shell, electromagnetic coils are arranged in the multiple folding panels, the two ends of each electromagneticcoil are connected with the transmission lines through connecting lines respectively, the folding panels are folded in a Z-shaped mode, bonding parts are arranged at the two ends of each folding panel, and the bonding parts are bonded to the inner side face of the contact layer and the mounting shell respectively. According to the invention, the heartbeat frequency is accurately detected by utilizing the conversion of a current signal and a heart rate detection data signal.
Owner:SUZHOU YISHUYUAN TECH CO LTD

A method for measuring the heart rate of zebrafish by using the difference of fluorescence signal

A non-contact measurement of zebrafish heart rate that is less damaging to the organism, more stable and more precise. The GFP fluorescent protein in the genetically labeled zebrafish heart emits a fluorescent signal when illuminated by a laser corresponding to the excitation wavelength. The fluorescence signal (507 nm) was collected by using an inverted microscope equipped with a filter to filter out the excitation light signal (488 nm), and a high-speed CCD camera was used to collect heartbeat images over a period of time to form a video. The obtained video is extracted frame by frame and the area of ​​the difference area between frames is statistically drawn to obtain the variation curve of the difference over time. The heart beat cycle is obtained by counting the average of the average interval frames of peaks and the average interval of troughs, and the heartbeat frequency can be obtained by using the known video frame rate. This method has important application potential in biological measurement, biological in vivo microscopic imaging and so on.
Owner:NANKAI UNIV

Artery intracavity ultrasound imaging method, artery intracavity ultrasound imaging device, equipment and artery intracavity ultrasound imaging system

The invention discloses an artery intracavity ultrasonic imaging method. The withdrawing speed of a probe is determined according to relative speed change data between a target artery section and an ultrasonic probe when the ultrasonic probe is static, so that the influence of the movement process of the artery cavity along with the heartbeat on the withdrawing image acquisition process of the probe can be reduced; loss of useful data can be avoided while repeated imaging is avoided; an appropriate number of arterial cavity images are enabled to be acquired; the occurrence of image distortion is avoided; the accuracy of withdrawing image acquisition is improved, so that a reliable length value is provided for an arterial intervention doctor in the arterial intervention treatment process, and the accuracy of the arterial lesion length measured according to artery intracavity ultrasonic imaging is improved; and the diagnosis and treatment effect can be effectively improved. The invention also discloses an artery intracavity ultrasonic imaging device, computer equipment, a computer readable storage medium and an artery intracavity ultrasonic imaging system, which have the beneficial effects.
Owner:SONOSCAPE MEDICAL CORP

Atrial fibrillation demonstration model

The invention discloses an atrial fibrillation demonstration model in the technical field of heartbeat models, which comprises a ventricular cavity cover, a closed cavity with a ventricular shape outside, a plurality of ventricular elastic strips uniformly and fixedly connected to the inner wall, a ventricular limiting shaft fixed inside, a ventricular contraction and expansion wheel rotatably mounted on the ventricular limiting shaft, and a ventricular contraction and expansion wheel rotatably mounted on the ventricular contraction and expansion wheel. The other ends of the ventricular elastic strips are fixedly connected with the ventricular contraction and expansion wheel, the rhythm of the heartbeat can be simulated, contraction and expansion of the ventricle and the atrium of the heartbeat can be displayed, and the device is specially used for displaying the rhythm of the atrial fibrillation, is used for simulating the heartbeat of different rhythms, and can perform visual simulation display on the atrial fibrillation. The heartbeat rhythm during arrhythmia can be displayed through various different atrial and ventricular beating rhythms, meanwhile, beating simulation can be conducted according to different atrial and ventricular proportions, manufacturing is easier, displaying is more visual, and carrying is more convenient.
Owner:中国人民解放军联勤保障部队第九〇〇医院
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