CN200966792Y

CN200966792Y - Unilateral valve water seal drainage equipment

Info

Publication number: CN200966792Y
Application number: CNU2006200337251U
Authority: CN
Inventors: 胡萍; 龚仁蓉; 罗凤鸣; 成翼娟; 刘伦旭
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2006-04-06
Filing date: 2006-04-06
Publication date: 2007-10-31
Anticipated expiration: 2016-04-06

Abstract

The utility model relates to a medical one-way valve water-sealed drainage device which comprises a one-way valve for controlling the drainage liquid of a drainage bottle; wherein the one-way valve is connected with a drainage pipe through a tee pipe, and the other end of the tee pipe is connected with a rubber ball arranged in a sealed transparent chamber through a piezometric branch pipe. The one-way valve is a tubular structure, which has one end with a round narrow orifice and the other end with a top back and a liquid hole and is provided with a floating ball. When the drainage liquid flows into a drainage liquid inlet pipe through the drainage pipe, the drainage liquid can flow into the drainage bottle through the one-way valve. If the drainage liquid in the drainage bottle flows back to the drainage pipe, the one-way will prevent the return flow of the drainage liquid. The pressure change in the chest cavity of the human body reaches the rubber ball through the drainage pipe, the tee pipe and the piezometric branch pipe, which reaches the purpose of that the drainage liquid in the drainage bottle isn't inhaled into the chest cavity of the human body and simultaneously the negative pressure formation in the chest cavity of the human body can be conveniently observed.

Description

Check valve water seal drainage system

Technical field

This utility model relates to a kind of water seal drainage system, particularly a kind of medical check valve water seal drainage system.

Background technology

At present, behind the open chest surgery, must carry out drain to the gentle body of hydrops in the thoracic cavity.Now the drain liquid in the drainage system of Shi Yonging might be entered the thoracic cavity by intrathoracic vacuum suction, thereby causes malignant diseases such as class such as pleuritis.In order not allow drain liquid be entered the thoracic cavity by intrathoracic vacuum suction, the existing method that adopts is a negative pressure drainage.What negative pressure drainage adopted is permanent negative pressure, and the intrathoracic pressure power that does not extremely adapt to the human body pulmonary respiration changes.Vacuum suction requires high to the drainage system air-tightness, complicated operation.Vacuum suction needs complicated negative pressure equipment and the power supply of a cover, the inconvenient out-of-bed activity of patient.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned shortcoming, a kind of simple in structure, safe and reliable, long service life is provided, need not only utilizes the pulmonary respiration action to form negative pressure and shorten the convalescent check valve water seal of state of an illness drainage system by negative pressure equipment.

The technical scheme that this utility model check valve water seal drainage system adopts is: the drain liquid at drainage bottle enters connection one check valve on the pipe.The check valve other end connects tee tube, and two ends, one end in addition of tee tube connects drainage tube, and an end connects pressure measurement and is in charge of.Pressure measurement is in charge of and is connected ball again.Ball is installed in the transparent chamber of sealing, and air is taken out and is low pressure in the transparent chamber.Check valve is that an end has the circular narrow orifice other end that the tubular structure of dress ball float in top ridge and the liquid pass hole is arranged.Ball float moved down when drain liquid flowed from the top down in the check valve, and the top ridge stops ball float, and drain liquid flows through in liquid pass hole.Move on the ball float when drain liquid flows from bottom to top in the check valve, ball float stops up circular narrow orifice, and drain liquid can not reflux.Enter when pipe when drain liquid flows to drain liquid by drainage tube and tee tube, drain liquid can flow into drain liquid by check valve and enter pipe and enter drainage bottle.If the drain liquid in the drainage bottle will enter pipe by drain liquid and be back in the drainage tube, check valve will stop the backflow of drain liquid.Pressure in the torso model changes by drainage tube to be in charge of in the arrival ball through tee tube and pressure measurement, owing to be low pressure in the transparent chamber outside the ball, just can calculate the pressure in the torso model according to the size of ball.Reach the interior drain liquid of drainage bottle and can not suck the purpose that torso model is observed negative pressure formation in the torso model simultaneously easily.

The beneficial effects of the utility model are: simple in structure, need not other auxiliary facilities and power supply, and utilize the natural diastole of human body lung to improve curative effect, long service life.Safety, reliable.

Description of drawings

Fig. 1 is a schematic diagram of the present utility model.

Fig. 2 is that check valve is installed in the structure chart on the drainage tube.

Fig. 3 is the sectional structure chart of check valve.

1. drainage tubes connect the human body end among the figure, 2. drainage tube, and 3. pressure measurement is in charge of, 4. ball, 5. transparent chamber, 6. tee tube, 7. check valve, 8. exhaustor, 9. drain bottle stopper, 10. drain liquid enters pipe, 11. drainage tube epimeres, 12. the drainage tube hypomere, drain liquid in 13. drainage bottles, 14. drainage bottles, 15. the check valve loam cake, 16. circular narrow orifices, 17. ball floats, 18. the top ridge, 19. liquid pass holes, 20. check valve lower covers.

The specific embodiment

In Fig. 1, check valve 7 one ends connect drain liquid and enter pipe 10, and check valve 7 other ends connect tee tube 6.Tee tube 6 one ends connect drainage tube 2 other ends connection pressure measurement and are in charge of 3.Pressure measurement is in charge of 3 other ends and is connected ball 4.Ball 4 is installed in the transparent chamber 5.Drain liquid enters pipe 10, exhaustor 8 is installed on the drain bottle stopper 9.Drain bottle stopper 9 is installed on the drainage bottle 13.Drain liquid 14 in the dress drainage bottle in the drainage bottle 13.

In Fig. 2, check valve 7 one ends connect tee tube 6.Tee tube 6 one ends connect drainage tube epimere 11 other ends connection pressure measurement and are in charge of 3, and check valve 7 other ends connect drainage tube hypomere 12.

In Fig. 3, check valve loam cake 15 is connected with check valve lower cover 20, and ball float 17 is placed in check valve loam cake 15 and the cavity that check valve lower cover 20 is connected.Check valve loam cake 15 is provided with a circular narrow orifice 16, and check valve lower cover 20 is provided with a top ridge 18 and a liquid pass hole 19.

Claims

1, a kind of check valve water seal drainage system, comprise that drainage tube connects that human body end, drainage tube, pressure measurement are in charge of, ball, transparent chamber, tee tube, check valve, exhaustor, drain bottle stopper, drain liquid enter pipe, drainage tube epimere, drainage tube hypomere, drainage bottle, it is characterized in that: drain liquid enters Guan Yiduan connection check valve.

2, check valve water seal drainage system according to claim 1 is characterized in that: tee tube one end connects pressure measurement and is in charge of, and an end connects check valve, and the other end connects drainage tube.

3, check valve water seal drainage system according to claim 1, it is characterized in that: ball is installed in the transparent chamber.