6 results about "Cardiac assist" patented technology

The present invention relates to systems, methods and algorithms for determination of heart pump function and their use in livings subject are described.The invention further relates to complementary parts of such systems that work best in combination.Medical catheters, sheaths and shafts are disclosed that carry an arrangement of integrated digital sensor systems-on-chip (SoC) in the portion thereof residing inside the body. These devices combine at their portion that resides inside the body, the complete chain of signal transduction, signal analog-to-digital conversion and digital signal transmission, and allow to acquire single and multiple physical entities in a single setup. In specific instances the devices integrate wireless data transfer functionality, and in specific instances they integrate wireless energy harvesting for battery-free functionality.The present invention further describes complementary monitor systems that are suited for reception, processing and analysis of data acquired by such catheters / sheaths / shafts to yield a robust assessment of cardiac performance.Moreover, the present invention relates to innovations which render such systems applicable to patients with and without cardiac assist devices.

The application discloses a double-gas-path air source system, a double-gas-path heart auxiliary system and a use method. The double-gas-path heart auxiliary system comprises a pressure generating mechanism, a first auxiliary device, a second auxiliary device, a detection device and a control mechanism. The pressure generating mechanism alternately generates positive pressure and negative pressure during work. The first auxiliary device comprises a first driven device and a first pipe line, and a tube body at the farthest end of the first pipe line is provided with an inflow and an outflow. The first driven device is located in the tube body of the first pipe line and corresponds to the position of the outflow. The second auxiliary device comprises a second driven device and a second pipe line in communication with the second driven device. The pressure generating mechanism makes the second driven device repeatedly expand and contract through the second pipe line. The detection device is used for acquiring the intraventricular pressure and the intra-aortic pressure. The control mechanism controls the pressure generating mechanism to drive the first driven device and the second driven device according to the corresponding time sequence in a cycle control period according to the pressure signal sent by the detection device.

The present application relates to a kind of heart auxiliary system and perfusion device.Perfusion device includes driving element, transmission mechanism and at least two liquid injectors, liquid injector includes injection cavity and the piston rod in injection cavity, the end of injection cavity away from piston rod is equipped with injection port and suction port, injection port is used to communicate with heart auxiliary device, suction port is used to communicate with liquid container, piston rod is connected with transmission mechanism respectively, driving element is connected with transmission mechanism, for simultaneously driving at least one liquid injector in injection state and at least one liquid injector in suction state.Driving element starts to drive transmission mechanism movement, transmission mechanism simultaneously drives at least two liquid injectors to operate, so that at least one liquid injector injects liquid to heart auxiliary device while at least another liquid injector sucks liquid from liquid container, and alternately pushes liquid, ensure that there is always perfusion liquid injection in heart auxiliary device, realize continuous and stable perfusion, effectively reduce the blood damage in heart auxiliary device, reduce the risk of hemolysis.

Devices, systems, and methods for warming the patient during an ECLS procedure. Depending on the specific need (heart and lung support or pure heart support) the patient may be warmed via a heat exchanger in which the patient bloods comes into close—indirect—contact with a warming fluid or, in a pure Heart Assist procedure, by directly warming the blood of the patient. The proposed solution to both warming methods described above is a centrifugal pump with an integrated heating which has a detachable pump head. The invention allows for a smaller design, simpler handling, using a sterile warming fluid with no air contact, turbulence enhanced heat transfer and includes inherent safety aspects for ECLS patients.

A cardiac assist device and system are disclosed and a method of using the same, the cardiac assist device comprising a steering line, and a catheter for guiding said steering line. The catheter being configured to be advanced percutaneously through vasculature to be positioned along a longitudinal axis of a heart outside a pericardium of said heart inside a patient´s body. The steering line being adapted to be received through the catheter and being advanced therethrough, substantially along the longitudinal axis of the heart. The steering line being configured to form a closed loop extending from the catheter, thereby forming a cardiac loop for positioning around the heart, so that it substantially straddles the heart, wherein the cardiac loop is configured to move between a first position and a second position, thereby assisting the heart to pump blood, thereby mechanically assisting cardiac function.

A cardiac assist device and system are disclosed and a method of using the same, the cardiac assist device comprising a steering line, and a catheter for guiding said steering line. The catheter being configured to be advanced percutaneously through vasculature to be positioned along a longitudinal axis of a heart outside a pericardium of said heart inside a patient's body. The steering line being adapted to be received through the catheter and being advanced therethrough, substantially along the longitudinal axis of the heart. The steering line being configured to form a closed loop extending from the catheter, thereby forming a cardiac loop for positioning around the heart, so that it substantially straddles the heart, wherein the cardiac loop is configured to move between a first position and a second position, thereby assisting the heart to pump blood, thereby mechanically assisting cardiac function.