14 results about "Right heart" patented technology

The invention belongs to the technical field of medical ultrasonic diagnosis auxiliary equipment, and discloses an electric right heart acoustic radiography foaming device which comprises a device body, the device body comprises a base, a mounting plate is fixedly arranged on the rear side of the base, a driving assembly is arranged on the front side of the mounting plate, and the driving assembly comprises fixing frames fixed to the upper side and the right side of the mounting plate; a stepping motor is fixedly arranged at the top of the fixing frame, a ball screw is fixedly arranged at the tail end of a main shaft of the stepping motor, a sliding block is spirally arranged on the outer side of the ball screw in a sleeving mode, and a connecting rod is fixedly arranged at the bottom of the sliding block, so that accurate controllability of power transmission and visual adjustment of parameters in the contrast agent injection process are achieved; specifically, key parameters such as injection speed and dosage can be accurately set through the operation panel, a traditional manual injection mode is replaced, and the stability of the foaming effect of the contrast agent is guaranteed.

The invention discloses a pulmonary arterial hypertension recognition device and method based on multiple paths of electrocardio heart sound signals, and relates to the technical field of biomedicine, and the method comprises the steps: limiting an aortic valve closing candidate peak and a drop point of a pulmonary valve closing candidate peak in a time interval between a main peak anchor point time boundary of a double-anchoring split fragment set and an electrocardio fragment key turning point; adjacent beat backtracking replacement and multi-channel consistent voting retention are performed on candidate peaks of cross-beat hopping, and a physiological consistent split fragment set is generated; and according to the physiological consistency split fragment set, converging split sequences of multiple paths of heart sounds, and carrying out beat-level splicing and in-window consistency closing on the split sequences and right heart load related form entries of multiple paths of electrocardio, so as to generate a pulmonary arterial hypertension recognition and diagnosis set. According to the method, high-precision synchronization of multiple paths of electrocardiogram and heart sound signals is realized, equipment difference and noise interference are eliminated, the reliability of feature extraction is guaranteed, and the pulmonary arterial hypertension recognition stability is improved.

This invention discloses a method for controlling left and right ventricular compression before extracorporeal circulation. First, in an in vitro environment, peristaltic pumps are installed at the left and right ventricular inlets of the extracorporeal circulation device. Then, an inlet pump is connected to the inlet of the peristaltic pumps, and an outlet pump is connected to the outlet of the peristaltic pumps. Finally, a first pressure measuring structure and a second pressure measuring structure are respectively installed on the side of the inlet and outlet pumps away from the peristaltic pumps, and the pressure of both the inlet and outlet pumps is adjusted to -180 mmHg. The negative pressure of the inlet pump is adjusted by the first pressure measuring structure, and the negative pressure of the outlet pump is adjusted by the second pressure measuring structure, thereby quantifying the adjustment method. This visualizes the process of controlling left and right ventricular compression before extracorporeal circulation, converting the adjustment results into specific negative pressure values ​​for the inlet and outlet pumps. This makes the reference values ​​for adjusting left and right ventricular compression numerically and standardized, avoiding adjustment discrepancies, eliminating reliance on experience and intuition, and providing a quick and highly accurate adjustment method.

A heart failure management system for a patient includes a plurality of sensors including at least one implantable pressure sensor positioned within the heart to capture synchronized left and right heart pressure waveforms, transmitted via one or more transmitters to a receiver. Control circuitry receives these waveforms and processes them using a machine learning medication dosage management model, trained on historical left and right heart pressure logs, volume status metrics (e.g., weight, fluid intake, symptoms), and / or ground truth dosage logs for certain heart failure treatment medications, such as a blood pressure reducing medication (e.g., ARNI) and an intravascular volume reducing medication (e.g., Lasix). The model can generate real-time dosage recommendations, systemic blood pressure, and volume load predictions in real-time, enabling precise, data-driven treatment adjustments aligned with clinical guidelines, supporting timely clinical decisions or automated medication dispensing to optimize patient outcomes and reduce hospitalization risks.

The application discloses a pulmonary arterial hypertension recognition device and method based on multiple ECG and PCG signals, and relates to the technical field of biomedicine. The device comprises the following steps: limiting the landing points of the aortic valve closing candidate peak and the pulmonary valve closing candidate peak in the main peak anchor point time boundary and the ECG segment key turning point time interval of the double-anchored split segment set, performing adjacent beat backtracking replacement and multi-channel consistent voting reservation on the candidate peak of the cross-beat jump, and generating a physiological consistency split segment set; according to the physiological consistency split segment set, gathering the split sequence of the multiple PCGs, and performing beat-level splicing and window-in-consistency closure on the right heart load related morphological items of the multiple ECGs, and generating a pulmonary arterial hypertension recognition diagnosis set. The application realizes high-precision synchronization of multiple ECG and PCG signals, eliminates device differences and noise interference, guarantees the reliability of feature extraction, and improves the stability of pulmonary arterial hypertension recognition.

This invention relates to a simulator for transcatheter interventional treatment of right ventricular valves, comprising a model mounting housing with multiple simulated liquid inlet channels and multiple simulated liquid outlet channels disposed in the left and right side walls of the housing; the multiple liquid inlet channels are connected to a shunt device via pipes, the shunt device is connected to a heating device via pipes, the heating device is connected to a simulated liquid storage device via pipes, the simulated liquid storage device is connected to a manifold via pipes, the manifold is connected to the simulated liquid outlet channels via pipes, and a liquid pump is also disposed between the simulated liquid storage device and the heating device; the simulator for transcatheter interventional treatment of right ventricular valves can simulate the flow of blood in a pulsating conduit model, thereby more realistically simulating the process of transcatheter interventional treatment of right ventricular valves, allowing doctors to simulate surgery in a model that is closer to a real environment before performing actual surgery, thereby improving the success rate of the surgery.

The invention, which belongs to the technical field of the medical equipment, discloses a lung transplantation post-operative cardiopulmonary capacity collaborative evaluation and adjustment system comprising a multi-parameter acquisition module, a cardiopulmonary interaction modeling module, a capacity strain test module, a haemodynamics target setting module, a treatment response prediction module and an adjustment execution module. The system quantitatively analyzes the complex relationship among the right heart function, the pulmonary vascular resistance and the pulmonary compliance through a cardiopulmonary interaction modeling engine, evaluates the tolerance of a patient to the capacity change through a capacity strain test, and formulates an individualized hemodynamic target according to a specific cardiopulmonary interaction mode of the patient. Potential influences of different intervention measures are simulated, treatment parameters are automatically adjusted, the hemodynamic stability and the oxygenation function of a lung transplantation patient are remarkably improved, and the occurrence rate of complications is reduced.

The utility model belongs to the technical field of pulmonary vessel guiding catheters, and particularly relates to a pulmonary vessel guiding catheter which can be used for right heart function examination. The technology comprises a guiding catheter, and a floating catheter is arranged in the guiding catheter in a penetrating mode. According to the technical scheme, the functions of an existing right heart floating catheter and an existing pulmonary vessel guiding catheter are organically combined, and the function effects of the original right heart floating catheter and the original pulmonary vessel guiding catheter are achieved through one set of technical scheme. Specifically, a guiding catheter in the prior art is adopted, and physical characteristics such as proper flexibility and strength are utilized to adapt to various bends and steers in a blood vessel; a floating catheter in the prior art is adopted to realize pulmonary vessel intervention operation; the floating catheter is arranged in the guiding catheter, so that the guiding catheter can be used for right heart function examination and pulmonary vessel intervention operation, and clinical diversified requirements are met.

The invention discloses a heart beat and blood circulation dynamic teaching model, and belongs to the technical field of biological teaching aids, and the model comprises a left heart and right heart independent elastic sealed cavity type heart simulation unit which is used for simulating the contraction and relaxation of the heart, is made of a flexible pipeline, is provided with a one-way control part, is used for limiting the one-way flow of blood, and has one end connected with the heart; one end of the blood vessel simulation unit is connected with a viscera, the viscera simulation unit is arranged according to the coronal plane of a human body, a closed channel is filled with the simulated blood medium containing two colors, the circulation driving unit is connected with a pipeline in series to drive blood circulation, and the control unit is electrically connected with the heart, the driving unit and the sound box. Through a heart simulation unit divided into a left heart and a right heart, heart actions are accurately simulated, and a heart beat cycle is presented; arteriovenous blood is clearly distinguished through two color media, and the transformation process is displayed.

The application discloses an endothelium-targeting controlled-release anti-thrombotic drug intelligent monitoring biodegradable heart occluder, and relates to the field of medical devices, which comprises an occluder body and a sheath pipe for regulating and controlling the occluder body, wherein the occluder body is composed of a double-disc-shaped biological skeleton, a fixed deformation body and a biological flow-blocking film; the double-disc-shaped biological skeleton is composed of two mutually symmetrical adhering discs forming left and right heart disc surfaces; a stent outer disc is arranged around the side surface of the adhering disc; a double-layer anti-thrombotic drug controlled-release layer is arranged on the surface of the stent outer disc; the two adhering discs are tightly connected with the fixed deformation body; an ultrasonic blood flow sensor is arranged in the fixed deformation body; an impedance sensor is arranged on one side of the ultrasonic blood flow sensor in the fixed deformation body; and the biological flow-blocking film is arranged on the surface of the two adhering discs on the opposite side. The occluder is periodically degraded in the body of a patient to reduce complications caused by foreign matter retention, and is used for thrombus formation on the surface of the occluder, so that local low-dose anti-thrombotic drugs are controlled and released, thereby reducing the systemic adverse reactions caused by long-term oral administration of anti-thrombotic drugs after occlusion. The thrombus risk and the endothelialization process of the occluder are dynamically monitored to assist the repair and regeneration of heart tissue.

The present invention relates to a device and method for segmenting the membranous septum. The method comprises segmenting the left ventricular outflow tract, LVOT, of the heart in a 3D image data set; determining wall thickness information indicative of the wall thickness of the septum at different locations of a part of the segmented LVOT that is oriented towards the right heart chambers and right atrium; mapping the determined wall thickness information onto the surface of said part of the segmented LVOT; and segmenting the membranous septum in the 3D image data set based on the mapped wall thickness information.

An epicardial implant system prevents right heart failure following left ventricular assist device (LVAD) implantation through dual-mechanism support of the right ventricular free wall and tricuspid valve annulus. The device comprises a biocompatible independent adjustment mechanisms for ventricular wall constraint and annular geometry optimization. The invention simultaneously treats both ventricular dilation and annular valve dysfunction through separate adjustable elements. Epicardial placement eliminates atriotomy requirements while providing real-time hemodynamic optimization. Atraumatic anchoring permits repositioning without tissue damage. Preclinical validation confirms six-minute implantation with independent component efficacy under afterload conditions. The ventricular component prevents dilation while the annular component reduces regurgitation, validating dual-mechanism necessity. The prophylactic approach addresses mechanical disruption causing right heart failure in 40% of LVAD recipients. Applications extend beyond LVAD to coronary bypass, and valvular corrections. Biodegradable embodiments accommodate pediatric cardiac growth. The system provides the first dedicated prophylactic intervention for post-surgical right heart failure across multiple cardiac procedures.

The application discloses a method for controlling the tightness of left and right heart pressure in cardiopulmonary bypass, which comprises the following steps: installing a peristaltic pump at the left and right heart inlets of a cardiopulmonary bypass device in an isolated environment; connecting a liquid inlet pump to the liquid inlet of the peristaltic pump and connecting a liquid outlet pump to the liquid outlet of the peristaltic pump; finally, setting a first pressure measuring structure and a second pressure measuring structure on the sides of the liquid inlet pump and the liquid outlet pump, respectively, away from the peristaltic pump, and adjusting the pressure of the liquid inlet pump and the liquid outlet pump to be-20mmHg. The negative pressure of the liquid inlet pump is adjusted through the first pressure measuring structure, and the negative pressure of the liquid outlet pump is adjusted through the second pressure measuring structure, so as to achieve the purpose of quantitative adjustment. The adjustment method is accurate, fast and reliable, and can effectively avoid the risk of reduction of pump blood volume, insufficient blood supply, direct interruption of blood circulation, damage of blood components, hemolysis, gas embolism and other risks caused by the "suction collapse" or "suction failure" of the pipe connected with the peristaltic pump.