Overpressure filtration system for nephrology department

A filtration system and constant pressure system technology, applied in the field of nephrology ultrafiltration, can solve problems such as unstable pressure, inability to ensure continuity of overpressure filtration, and flow interruption

Inactive Publication Date: 2020-10-20
南充市中心医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention patent with publication number CN 109692370 A discloses a pressurized ultrafiltration device for nephrology, which performs superpressure filtration through the pressure generated by squeezing the container. Although the structure is simple, the continuity of superpressure filtration cannot be guaranteed, and The pressure is not constant during the filtration process, which causes the pressure of the filtered liquid to be high and low, and may also cause a flow break

Method used

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  • Overpressure filtration system for nephrology department
  • Overpressure filtration system for nephrology department
  • Overpressure filtration system for nephrology department

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, a kind of nephrology ultra-pressure filtration system, such as figure 1 , 5 , 6, including

[0038] The constant pressure overpressure system, the constant pressure overpressure system includes the first constant pressure system and the overpressure tank 1, the inside of the overpressure tank 1 is an overpressure gas chamber 1-1 separated by an overpressure partition 1-2 and an overpressure tank 1. The liquid chamber 1-3, the overpressure gas chamber 1-1 has an air inlet connected with the first constant pressure system and installed with a valve, and the overpressure liquid chamber 1-3 has a liquid inlet and a liquid outlet installed with a one-way valve , the first constant pressure system comprises the first constant pressure gas tank 4, the first booster tank 5 and the first decompression tank 6, the first pressure gauge is installed on the first constant pressure gas tank 4, the first constant pressure gas tank 4 It is connected with the first boost...

Embodiment 2

[0043] Example 2, such as figure 2 , 5 , 6, 8, 9 are basically the same as in Embodiment 1, the difference is that the nephrology superpressure filtration system also includes a buffer tank 10, and the bottom of the buffer tank 10 is provided with a liquid inlet and a liquid discharge with a check valve The interior of the buffer tank 10 is provided with an elastic sheet (elastic rubber sheet) that is close to the top surface and is tightly connected with the side wall around. , the liquid inlet of the buffer tank 10 communicates with the liquid outlet of the low-pressure liquid chamber, and a third communication pipe is connected between the air inlet of the buffer tank 10 and the fourth gas filter box.

Embodiment 3

[0044] Example 3, such as image 3 , 4 , 5, 6, 7, 8, 9, are basically the same as Embodiment 1, the difference is that: the nephrology overpressure filtration system includes a steady flow system, and the steady flow system includes a third constant pressure system and at least one steady flow tank 11. The inside of the steady flow tank 11 is a steady flow gas chamber and a steady flow liquid chamber separated by a steady flow partition. The steady flow gas chamber has an air inlet connected to the third constant pressure system and installed with a valve. The steady flow The liquid chamber is provided with a liquid inlet and a liquid discharge port with a one-way valve, and the liquid inlet of the steady flow liquid chamber is communicated with the liquid discharge port of the low pressure liquid chamber through the steady flow pipeline 15. When there are two steady flow tanks 11, The liquid outlet of the low-pressure liquid chamber is connected to the tee pipe 16, and the l...

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Abstract

The invention relates to an overpressure filtration system for a nephrology department. A constant-pressure and overpressure system comprises a first constant-pressure system and an overpressure tank,wherein the overpressure tank is internally provided with an overpressure gas cavity and an overpressure liquid cavity; the overpressure gas cavity is provided with a gas inlet communicating with thefirst constant-pressure system; the overpressure liquid cavity is provided with a liquid inlet and a liquid outlet which are provided with one-way valves; a filtration system comprises at least one filtering tank; a liquid inlet and a liquid outlet are formed in two ends of the filtering tank respectively; a constant-pressure and low-pressure system comprises a second constant-pressure system anda low-pressure tank; a low-pressure gas cavity and a low-pressure liquid cavity are formed in the low-pressure tank; a gas inlet communicating with the second constant-pressure system is formed in the low-pressure gas cavity; a liquid inlet and a liquid outlet which are provided with one-way valves are formed in the low-pressure liquid cavity; the liquid outlet of the overpressure liquid cavity communicates with the liquid inlet of the filtering tank; and the liquid outlet of the filtering tank communicates with the liquid inlet of the low-pressure liquid cavity. The constant pressure is provided by utilizing the constant-pressure and overpressure system and the constant-pressure and low-pressure system, so that the pressure difference is also constant; and a constant-pressure ultra-filtration process can be provided.

Description

technical field [0001] The invention relates to the technical field of nephrology ultrafiltration, in particular to an overpressure filtration system for nephrology. Background technique [0002] With the development of medical technology, many critical, urgent, and severe patients are treated with hemodialysis and purification, especially in the nephrology system. The kidney is the main detoxification organ in the human body. Once the kidney malfunctions or fails, Renal replacement therapy requires hemodialysis or peritoneal dialysis. [0003] The invention patent with publication number CN 109692370 A discloses a pressurized ultrafiltration device for nephrology, which performs superpressure filtration through the pressure generated by squeezing the container. Although the structure is simple, the continuity of superpressure filtration cannot be guaranteed, and During the filtration process, the pressure is not constant, which causes the pressure of the filtered liquid to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/34
CPCA61M1/3417
Inventor 夏梦迪谢席胜
Owner 南充市中心医院
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