Abstract: Provided is a ventricular assist device cannula, and more particularly, a ventricular assist device cannula with electrodes. An exemplary embodiment of the present invention provides a ventricular assist device cannula with electrodes, including: a connecting tube connecting an incision of a body tissue and a ventricular assist device so that blood can flow; and electrodes connected with the connecting tube and contacting the incision of the body tissue to transfer an electric signal to the body tissue. The ventricular assist device cannula with electrodes according to the exemplary embodiment of the present invention has effects as follows. First, a bio-signal of a patient wearing the ventricular assist device through the electrode attached to the conduit can be easily measured without a separate electrode implant and an electric stimulus can also be measured.

Abstract: Provided is a ventricular assist device cannula, and more particularly, a ventricular assist device cannula with electrodes. An exemplary embodiment of the present invention provides a ventricular assist device cannula with electrodes, including: a connecting tube connecting an incision of a body tissue and a ventricular assist device so that blood can flow; and electrodes connected with the connecting tube and contacting the incision of the body tissue to transfer an electric signal to the body tissue. The ventricular assist device cannula with electrodes according to the exemplary embodiment of the present invention has effects as follows. First, a bio-signal of a patient wearing the ventricular assist device through the electrode attached to the conduit can be easily measured without a separate electrode implant and an electric stimulus can also be measured.

Abstract: Provided is a ventricular assist device cannula, and more particularly, a ventricular assist device cannula with electrodes. An exemplary embodiment of the present invention provides a ventricular assist device cannula with electrodes, including: a connecting tube connecting an incision of a body tissue and a ventricular assist device so that blood can flow; and electrodes connected with the connecting tube and contacting the incision of the body tissue to transfer an electric signal to the body tissue.

Abstract: A polymer valve and a ventricular assist device using the polymer valve are provided to allow blood to flow in a first direction but prevents blood from flowing backward in a second direction opposite to the first direction. The polymer valve comprises a base body having a hollow therethrough for passing of blood, comprising a pair of support legs formed by cutting opposing sides of an end portion of the base body along an inclined surface toward the center line of the hollow to extend toward the first direction from the body , and a leaflet formed of polymer and attached to the support legs to cover the hollow, wherein the leaflet includes a pair of opposing sides attached to the cutting surfaces of the support legs and an end portion connecting the sides of the leaflet, wherein the leaflet is formed of an opening between the support legs.

Abstract: A ventricular assist device includes a case, a pair of blood bags and a squeezing unit. The blood bags are installed inside the case. Each of the blood bags includes an inlet port connected to a ventricle of a heart to introduce therethrough blood flowing out from the ventricle, an internal space formed to store the blood introduced through the inlet port and an outlet port connected to an artery to discharge therethrough the blood stored in the internal space. The internal space has a variable volume. The squeezing unit is installed inside the case. The squeezing unit is configured to alternately squeeze the blood bags in such a way that, if one of the blood bags is squeezed to discharge the blood, the other blood bag is inflated to draw the blood.

Abstract: A ventricular assist device includes a case, a pair of blood bags and a squeezing unit. The blood bags are installed inside the case. Each of the blood bags includes an inlet port connected to a ventricle of a heart to introduce therethrough blood flowing out from the ventricle, an internal space formed to store the blood introduced through the inlet port and an outlet port connected to an artery to discharge therethrough the blood stored in the internal space. The internal space has a variable volume. The squeezing unit is installed inside the case. The squeezing unit is configured to alternately squeeze the blood bags in such a way that, if one of the blood bags is squeezed to discharge the blood, the other blood bag is inflated to draw the blood.