2results about How to "Improve dialysis efficiency" patented technology

The application discloses a silk fibroin solution purification device and a purification method thereof, which comprises a dialysate storage tank, a dialysis water tank, a finished product storage tank and a PLC control cabinet; a liquid pumping pump, a self-priming pump and a dialysis cavity are installed in the dialysis water tank, a dialysis bag is hung in the dialysis cavity, and the liquid inlet and the liquid outlet of the dialysis bag are connected to the liquid pumping pump and the self-priming pump through liquid inlet electromagnetic valves and liquid outlet electromagnetic valves respectively; the liquid pumping pump is connected to the liquid pumping electromagnetic valve of the dialysate storage tank, and the self-priming pump is connected to the liquid inlet of the finished product storage tank; water inlet electromagnetic valves and water outlet electromagnetic valves are further installed on the dialysis cavity; and the PLC control cabinet is connected to all electromagnetic valves, the liquid pumping pump and the self-priming pump. The application adopts the PLC to monitor information of each module and control a dialysis process, liberates manual work, reduces cost, improves dialysis precision at the same time, ensures purification quality, improves product purity, automatically monitors a dialysis end point, improves consistency of purification, sets a dialysis circulating flow system and improves dialysis efficiency.

The application discloses a double-lumen dialysis catheter based on end-side connection, relates to the technical field of medical devices, and comprises a catheter main body, an arterial end catheter and a venous end catheter. A partition wall is arranged in the catheter main body and extends along the length direction of the catheter main body; the internal space of the catheter main body is separated into a first cavity and a second cavity which are independent of each other by the partition wall. One end of the arterial end catheter is connected to one end of the catheter main body, and the internal space of the arterial end catheter is in communication with the first cavity. One end of the venous end catheter is connected to one end of the catheter main body, the venous end catheter and the arterial end catheter are connected to the same end of the catheter main body, and the internal space of the venous end catheter is in communication with the second cavity. The length of the venous end catheter is greater than that of the arterial end catheter. The venous end catheter is arranged at an included angle with the catheter main body. The dialysis catheter based on end-side connection optimizes hemodynamics, reduces pressure gradient and recirculation rate, reduces blood vessel wall contact, realizes long-term blood flow smoothness and gives consideration to blood vessel protection.