4 results about "Infusion method" patented technology

The present disclosure provides a washing machine hydraulic leveling device and a filling method thereof. The washing machine hydraulic leveling device comprises hydraulic feet, wherein each hydraulic foot comprises a fixed part and a movable part, a hollow chamber is formed between the fixed part and the movable part, and the hollow chamber is provided with a hydraulic medium; two said hydraulic feet communicate with each other through high-pressure oil pipes: the hydraulic medium flows under pressure between the hollow chambers of the hydraulic feet to drive the movable parts to extend and retract, thereby implementing automatic leveling; and the fixed parts are provided with oil nipples communicating with the hollow chambers, and the oil nipples of the two hydraulic feet are connected to a same connecting piece through the high-pressure oil pipes, thereby implementing communication between the two hydraulic feet. The washing machine hydraulic leveling device provided by the present disclosure has two hydraulic feet, the two hydraulic feet are separately connected with respective high-pressure oil pipes, and the high-pressure oil pipes 700 are connected to the same connecting piece, so that communication of the two hydraulic feet is implemented, and the hydraulic medium flows between the two hydraulic feet to implement automatic leveling.

This invention provides a pressure infusion mechanism and method. The pressure infusion mechanism includes an infusion module and a metering module. The infusion module is used for inputting and outputting liquid and includes a storage tank, a positive / negative pressure switching valve, a first air pipe, an inlet valve, an inlet pipe, and an outlet pipe. The positive / negative pressure switching valve is connected to the storage tank via the first air pipe for inputting positive or negative pressure air. The inlet pipe is connected to the storage tank via the inlet valve, and one end of the outlet pipe is connected to the storage tank. The metering module is used to receive a preset volume of liquid and includes a piston drive, a piston, a capacity cup unit, a first liquid level pipe, a liquid level sensor, an inlet / outlet switching valve, and a filling pipe. The movable end of the piston drive is connected to the piston, which is embedded in the capacity cup unit. The piston is connected to the inlet / outlet switching valve, which is connected to the filling pipe and the outlet pipe of the infusion module. This pressure infusion mechanism is used to meterly deliver electrolyte to a battery and can replace the expensive and time-consuming metering pump.

This invention provides an improved infusion set, belonging to the field of medical auxiliary devices, including an infusion tube, an infusion assembly, and a storage assembly. One end of the infusion tube is connected to a puncture device, and a drip chamber is provided on the surface of the infusion tube. The other end of the infusion tube is connected to a flexible tube, on the surface of which an infusion needle is slidably mounted. A needle wing is connected to the tail end of the infusion needle. During puncture, the infusion needle is inserted into the blood vessel, and the flexible tube enters the blood vessel simultaneously. By pulling the needle wing, the infusion needle moves on the surface of the flexible tube and exits from the blood vessel, leaving the flexible tube in place. This infusion method replaces leaving a steel needle inside the blood vessel, reducing drug extravasation, facilitating patient hand movement, and preventing puncture wounds to blood vessels.