5 results about "Right heart" patented technology

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.

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 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.

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.