52 results about "HEART THROBBING" patented technology

The present invention provides devices for beating heart surgery. The device separates the valve and the surrounding area from the rest of the vascular system so the operation procedure can be carried out while the heart is beating during the entire course of the procedure. This is made possible through a temporary valve (170) and two coronary artery conducts (130, 140) incorporated in the balloon-catheter system. The system provides better view and ease of operation and thus, reduces surgery related complication and pains.

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.

A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated in order to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped in order to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued in order to allow the medical procedure to be continued. A sensor to sense a characteristic of a fluid or tissue, such as an impending contraction, may be also used during the medical procedure. Systems and devices for performing the medical procedure are also provided.

An electrical lead includes an elongate body having a proximal end, and a sensing unit capable of resolving a change in a spatial configuration of the electrical lead. A medical device includes a control unit, an elongate body having a proximal end coupled with the control unit, and a sensing unit capable of resolving a change in a spatial configuration of the electrical lead and relating it to the amount of blood ejected from the heart. A method includes receiving a signal transmitted from a lead disposed within a heart and determining a change in a dimension of the heart, due to the heart beating, based upon the signal.

Methods and devices for the treatment of cardiac valve dysfunction through the placement of lines and anchors. The lines and anchors can form artificial chordae between valve leaflets and the ventricular wall or papillary muscles or connect the two valve leaflets together. The methods and devices offer a mechanism for performing this technique with the heart still beating, and allows for the placement of multiple lines with a single device.

The invention discloses an intracardiac energy collection device and an implantable electronic medical device, and belongs to the field of medical instruments. The intracardiac energy collection device includes: a shell; a fixing mechanism that is arranged on the shell, and the fixing mechanism is configured to fix the outer shell in the heart cavity so that the shell can move along with beating of the heart; the nano-generator module that is packaged in the shell, and the nano-generator module is configured to output electric energy in response to movement of the shell along with heartbeat; and the power supply management module that is packaged in the shell, and the power supply management module is used for managing the electric energy output by the nano-generator module. The intracardiac energy collection device disclosed by the invention can be implanted into the heart in a minimally invasive intervention operation mode to collect biological mechanical energy generated by cardiacbeat, is small in operation wound, cannot damage the heart, and can effectively avoid infection.

The invention provides an auxiliary electronic stethoscope signal discrimination method based on deep learning. Based on complex sound signals of cardiac beating, useless sound signals are filtered out by using wavelet transform, and noise filtering processing is performed on the heart sound of the cardiac beating signals. Based on different characteristics of each stage of the cardiac beating period, the heart sound signals are segmented, the corresponding acoustic characteristics are extracted and processed through an artificial neural network algorithm so that whether the heart sound signals are normal can be judged, the doctor can be assisted to judge the disease of the patient, the better denoising effect can be realized, the accuracy is higher and the robustness is better. Compared with the conventional electronic stethoscope, the heart sound signals are processed more finely and the more specific and complete result can be obtained, and the doctor can be assisted to perform diagnosis so that the advantages of the method are further highlighted after further development of the future remote medical diagnosis.

The invention discloses a heart valve tether and a heart valve assembly with the same. One end of the heart valve tether is connected with a heart valve implanted into a heart, the other end of the heart valve tether is fixed outside the heart, the heart valve tether is made of an elastic material, and the strain of the elastic material is 6%-12% within the stress range not larger than 20 N. The heart valve tether can adapt to elastic connection required by heart beating, can apply fixed tension to the heart valve according to the change of the length of the tether, prevent the heart valve from falling into the atrium, can adapt to tension with different magnitudes in the heart beating process, and prevent damage to the heart due to the fact that the tension is too large.

A simulated living entity (SLE) HAS a body formed of cushioned material, a contact area on an surface of the body, a heating panel under the contact area, a microphone positioned proximate one end of the exposed surface, a speaker positioned proximate the microphone, a heartbeat simulator, a breath simulator proximate the microphone and speaker, and a control system within the body comprising a microprocessor, a coupled data repository, a power supply, wireless communication circuitry, and a digital bus. The heating panel heats the contact area, the heartbeat simulator provides feeling and sound of a beating heart, the breath simulator provides air intake and exhaust, and the speaker provides sounds of a person sleeping, synchronized with the breath simulator.

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.

The invention discloses an intracardiac energy collection device and an implantable electronic medical device, which belong to the field of medical equipment. The intracardiac energy collection device includes: a casing; a fixing mechanism arranged on the casing, and the fixing mechanism is configured to fix the casing on the heart inside the cavity so that the housing can move with the beating of the heart; the nanogenerator module is packaged in the housing, and the nanogenerator module is configured to output electrical energy in response to the movement of the housing as the heart beats; the power management module is packaged in the housing , the power management module is used to manage the electric energy output by the nano generator module. The heart energy harvesting device disclosed by the present invention can be implanted into the heart to collect biomechanical energy generated by the beating heart through minimally invasive interventional surgery. The surgical trauma is small, the heart will not be damaged, and infection can be effectively avoided.

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.

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.

A research method for the state transition of the Hodgkin‑Huxley Purkinje fiber model of the heart, by adding an external current I to the Hodgkin‑Huxley Purkinje fiber model of the heart ext , to study the equilibrium point and eigenvalue of the Jacobian matrix equation of the model, so as to judge that it belongs to the regional classification of local activity, marginal chaos, and local passive, and the corresponding regions have normal, dangerous, oscillation, and even stop phenomena of heart beating. The present invention analyzes the Hodgkin-Huxley kinetic model and the mechanism of state transition between them and external stimuli and equilibrium potentials, which can provide a certain reference method for human heart rehabilitation and health maintenance, and is useful for exploring the rules of neural activity and human health. have a certain meaning.

The invention provides a dynamic heart simulation device. The dynamic heart simulation device is characterized in that a variable-period, intermittent or periodic-moving rotating module is used as the heartbeat simulating device to simulate corresponding heartbeat processes; meanwhile, when the rotating module is driven by a motor module to rotate to a corresponding position, a sensor module transmits a pulse signal so as to simulate a pulse signal output by the heart connected with an electrode. The dynamic heart simulation device has the advantages that the device can accurately simulate heartbeats and pulse output instability caused by arrhythmia, replace a human body to acquire and optimize a heart image reconstruction algorithm and replace the human body to correct heart images, and the requirements of equipment image correction are satisfied at the same time.