Hemodialysis device for nephrology department

Abstract

The invention discloses a hemodialysis device for a nephrology department. The hemodialysis device comprises a base plate, wherein four electric telescopic rods which are equidistantly distributed arearranged on the upper surface of the base plate; a hemodialyzer is connected to the top ends of the electric telescopic rods; a PLC (programmable Logic Controller) is arranged on the left side face of the hemodialyzer; a liquid outlet pipe is arranged at a position, close to the bottom surface, of the front side face of the hemodialyzer; an electromagnetic valve II is arranged on the side face ofthe liquid outlet pipe; a liquid inlet pipe is arranged at a position, close to the upper surface, of the front side face of the hemodialyzer. The hemodialysis device for the nephrology department has the advantages of reasonable structure, higher practicality, convenience in use and suitability for popularization and use; the device is conveniently moved and braked by an armrest, universal wheels and a brake; the pressure intensity of an inner cavity of the hemodialyzer is conveniently adjusted by a pressure sensor, a booster pump and a negative pressure pump; the temperature of the inner cavity of the hemodialyzer is conveniently adjusted by a heater and a temperature sensor; waste liquid is conveniently collected and treated by a waste liquid barrel.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a hemodialysis device for nephrology. Background technique [0002] Nephrology hemodialysis device is a commonly used medical device for blood detoxification. It acts as an artificial kidney. It has a semi-permeable membrane inside. The average pore size on the semi-permeable membrane is 3 nanometers, so only a molecular weight of 1.5 is allowed. Small molecules below 10,000 and some middle molecular substances pass through, while macromolecules with a molecular weight greater than 35,000 cannot pass through. Therefore, proteins, pyrogens, viruses, bacteria, and blood cells are impermeable; Part of it is water. If you want to replace the kidney with an artificial kidney, you must discharge a large amount of water from the blood. The artificial kidney can only use osmotic pressure and ultrafiltration pressure to achieve the purpose of removing excess water. The artificial ...

AI Technical Summary

Problems solved by technology

[0002] Nephrology hemodialysis device is a commonly used medical device for blood detoxification. It acts as an artificial kidney. It has a semi-permeable membrane inside. The average pore size on the semi-permeable membrane is 3 nanometers, so only a molecular weight of 1.5 is allowed. Small molecules below 10,000 and some middle molecular substances pass through, while macromolecules with a molecular weight greater than 35,000 cannot pass through. Therefore, proteins, pyrogens, viruses, bacteria, and blood cells are impermeable; Part of it is water. If you want to replace the kidney with an artificial kidney, you must discharge a large amount of water from the blood. The artificial kidney can only use osmotic pressure and ultrafiltration pressure to achieve the purpose of removing excess water. The artificial kidney used is hemodialysis The devices all have the above-mentioned functions, thereby regulating the quality and quantity of blood, making it close to the physiological state. However, the existing hemodialysis devices are complicated in structure and inconvenient to use.

[0003] For example, the patent application publication number CN204932411U discloses a hemodialysis device for nephrology, which includes a venous needle, an infusion pump, a hemodialyzer, a temperature controller, a blood pump, and an arterial needle in turn; the venous needle and the infusion pump pass through a The liquid inlet pipe is connected to the hemodialyzer, and the temperature controller, blood pump and arterial needle are connected to the hemodialyzer through a liquid outlet pipe; the pipes on the hemodialyzer are respectively connected to the dialysate bag a and the dialysate bag b , the upper pipeline of the dialysate bag a is connected to the manual pressurization device; the liquid inlet pipe has a liquid filling port connected by a branch pipe; the outlet pipe has a syringe connected by a branch pipe, but the device is simple in structure and relatively practical Poor, not suitable for promotional use

Images