CN222968921U - A negative pressure chest closed drainage device with adjustable air pressure - Google Patents

Abstract

The utility model provides a negative pressure chest closed drainage device with adjustable air pressure, including a drainage bottle, a drainage tube, a negative pressure trachea, and a regulating tube; the top surface of the drainage bottle is provided with a first through hole and a second through hole; one end of the drainage tube is inserted into the inner cavity from the first through hole and extends to the bottom of the fluid, and the other end is used to communicate with the chest cavity; one end of the negative pressure trachea is connected to the inner cavity through the second through hole, and the other end is used to connect to a negative pressure suction mechanism; the top surface of the drainage bottle is provided with a third through hole, and the bottom end of the regulating tube enters the inner cavity from the third through hole and extends to the bottom of the fluid. An regulating tube is added to the drainage bottle, and the depth of the regulating tube under the water surface is adjusted up and down, which plays a role in effectively adjusting the negative pressure in the drainage bottle, thereby achieving continuous negative pressure to suck out the gas in the chest cavity of patients with poor lung expansion function and large lung rupture, thereby increasing the success rate of rescue, and preventing patients from lung damage caused by excessive negative pressure in the bottle.

Description

Negative pressure chest closed drainage device capable of adjusting air pressure

[ Field of technology ]

The utility model relates to the technical field of medical appliances, in particular to a negative pressure chest closed drainage device capable of adjusting air pressure.

[ Background Art ]

Pneumothorax is a disease in which the admission of gas into the pleural cavity causes the collapse of lung tissue under pressure, also commonly referred to as lung collapse. Pneumothorax formation is generally caused by lacerations between lung tissue and chest cavity or chest wall injuries, and can be caused by various causes, such as chest injury, basic lung disease, etc. Pneumothorax is mostly seen in young and strong men with thin and high body types, and continuous smoking, high-pressure environment work and family pneumothorax history are all dangerous factors.

Clinically, refractory pneumothorax can be encountered, and although the air in the thoracic cavity can be drained by using a common closed thoracic cavity drainage device, if a large number of patients with pneumothorax, poor lung expansion function and large lung opening are encountered, the common closed thoracic cavity drainage device has defects. The closed thoracic drainage device is characterized in that the closed thoracic drainage device is a drainage device with a certain positive pressure, for example, the closed thoracic drainage device shown in the figure 1 comprises a drainage box 200, a drainage air pipe 201 and an air pipe 203, the drainage box 200 is connected with a thoracic cavity 202 through the drainage air pipe 201, the drainage box 200 is communicated with the outside through the air pipe 203, the bottom end of the drainage air pipe 201 is positioned under the water surface for example, gas can be pressed to 3cm below the water surface only when the pressure in the thoracic cavity 202 is greater than the sum of 1 atmosphere and 3cm water column pressure, and is discharged to the drainage box 200, and when the pressure in the thoracic cavity 202 is less than the sum of 1 atmosphere and 3cm water column pressure, the thoracic cavity 202 can not discharge the gas at all, so that the treatment is invalid.

In view of this, the present inventors have conducted intensive studies on the above problems, and have produced the present invention.

[ utility model ]

The utility model aims to solve the technical problems, and provides the negative pressure chest closed drainage device capable of adjusting the air pressure, which can effectively adjust the negative pressure in a drainage bottle through an adjusting pipe while sucking the air in the chest by the negative pressure, so as to avoid lung injury caused by overlarge negative pressure.

The utility model discloses a negative pressure chest closed drainage device capable of adjusting air pressure, which comprises a drainage bottle, a drainage tube and a negative pressure air tube, wherein an inner cavity for filling fluid is formed in the drainage bottle, a first through hole and a second through hole are formed in the top surface of the drainage bottle, one end of the drainage tube is inserted into the inner cavity from the first through hole and extends to the lower side of the fluid, the other end of the drainage tube is used for being communicated with the chest, one end of the negative pressure air tube is communicated with the inner cavity through the second through hole, the other end of the negative pressure air tube is used for being connected with a negative pressure suction mechanism, the negative pressure chest closed drainage device further comprises an adjusting tube, a third through hole is formed in the top surface of the drainage bottle, and the bottom end of the adjusting tube enters the inner cavity from the third through hole and extends to the lower side of the fluid.

Further, the bottom end of the regulating tube extends to the lower side of the fluid by 5-12cm.

Further, the top end of the adjusting tube is positioned outside the drainage bottle and is provided with a filtering air filter element.

Further, a sealing rubber ring is assembled at the third through hole.

Further, corresponding scale marks are printed on the outer wall of the regulating pipe, and the bottom end of the regulating pipe extends into the depth below the surface of the fluid.

Further, the drainage bottle is provided with a sealing component for sealing the third through hole.

Further, a water filling port is formed in the side wall of the drainage bottle, and a sealing cover is arranged at the water filling port.

Further, the drainage bottle is externally printed with a fixed water level line.

Furthermore, the drainage bottle is a transparent drainage bottle made of polyvinyl chloride.

The negative pressure chest closed drainage device has the advantages that the pressure-adjustable negative pressure chest closed drainage device is characterized in that the drainage bottle is additionally provided with the adjusting tube, the depth of the adjusting tube under the water surface is adjusted up and down, and the effect of effectively adjusting the negative pressure in the drainage bottle is achieved, so that the patients with poor lung expansion function and large lung rupture can continuously suck out the air in the chest of the patients under negative pressure, the rescue success rate is increased, and the lung injury of the patients caused by the overlarge negative pressure in the bottle can be avoided.

[ Description of the drawings ]

The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a conventional negative pressure thoracic closed drainage device in the prior art.

FIG. 2 is a schematic structural view of a negative pressure chest closed drainage device with adjustable air pressure.

FIG. 3 is a cross-sectional view of an air pressure adjustable negative pressure chest closed drainage device of the present utility model.

Fig. 4 is a schematic working diagram of a closed drainage device for a negative pressure chest cavity with adjustable air pressure in an embodiment.

Fig. 5 is a schematic working diagram of a negative pressure chest closed drainage device with adjustable air pressure in the second embodiment.

The negative pressure chest closed drainage device 100, a drainage bottle 1, a drainage tube 2, a negative pressure air tube 3, a chest 4, a negative pressure suction mechanism 5, an adjusting tube 6, a filtering air filter element 7, a sealing rubber ring 8, a fixed water line 9, a sealing component 10, an inner cavity 11, a first through hole 12, a second through hole 13, a third through hole 14, a water adding port 15 and a sealing cover 16.

[ Detailed description ] of the invention

In order to better understand the technical scheme of the present utility model, the following detailed description will refer to the accompanying drawings and specific embodiments.

It should be noted herein that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing these embodiments and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operate in a specific orientation. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.

Referring to fig. 2 to 5, the utility model provides a negative pressure chest closed drainage device 100 with adjustable air pressure, which comprises a drainage bottle 1, a drainage tube 2, a negative pressure air tube 3 and an adjusting tube 6, wherein an inner cavity 11 for filling fluid is formed in the drainage bottle 1, a first through hole 12 and a second through hole 13 are formed in the top surface of the drainage bottle 1, one end of the drainage tube 2 is inserted into the inner cavity 11 from the first through hole 12 and extends to the lower side of the fluid, the other end of the drainage tube is used for being communicated with the chest 4, one end of the negative pressure air tube 3 is communicated with the inner cavity 11 through the second through hole 13, the other end of the negative pressure air tube is used for being connected with a negative pressure suction mechanism 5, a third through hole 14 is formed in the top surface of the drainage bottle 1, and the bottom end of the adjusting tube 6 enters the inner cavity 11 from the third through hole 14 and extends to the lower side of the fluid.

Preferably, the fluid is sterilized normal saline, and the negative pressure suction mechanism 5 is an electric suction device, such as a Siman peak YX930D suction system, or is directly connected with a hospital center suction system.

According to the thoracic cavity 4 closed drainage device 100 with adjustable air pressure, the adjusting tube 6 is additionally arranged on the drainage bottle 1, the depth of the adjusting tube 6 under the water surface is adjusted up and down, and the effect of effectively adjusting the negative pressure in the drainage bottle 1 is achieved, so that the purpose that the patients with poor lung expansion function and large lung rupture continuously suck out the air in the thoracic cavity of the patients under negative pressure is achieved, the rescue success rate is increased, and the lung injury of the patients caused by the excessive negative pressure in the bottle can be avoided.

In the utility model, the top end of the regulating tube 6 is positioned outside the drainage bottle 1 and is provided with a filtering air filter element 7 for filtering outside air and preventing outside impurities from entering the bottle.

In the present utility model, the third through hole 14 is provided with a sealing rubber ring 8. The sealing rubber ring 8 can limit the adjusting pipe 6, so that the adjusting pipe 6 is prevented from sliding up and down at will, and the tightness can be improved.

In the utility model, the outer wall of the regulating tube 6 is printed with corresponding scale marks of which the bottom end of the regulating tube 6 extends into the depth below the surface of the fluid, and scales are carved outside the regulating tube 6 outside the bottle so as to correspond to a few centimeters below the water level, and medical staff can move the regulating tube 6 up and down to regulate the negative pressure.

In the present utility model, the sealing assembly 10 for sealing the third through hole 14 is arranged outside the drainage bottle 1. The seal assembly 10 is a silicone plug. When the patient does not need negative pressure suction, the second through hole 13 is not connected with the negative pressure suction mechanism 5 and is directly communicated with the outside air. The adjusting tube 6 is plugged by the sealing component 10, so that the bottle can be used as a common chest drainage bottle, and the dual-purpose effect of one bottle is achieved.

In the utility model, the side wall of the drainage bottle 1 is provided with the water filling port 15, the water filling port 15 is provided with the sealing cover 16, the water filling port 15 is arranged on the side wall of the drainage bottle 1, water is conveniently filled, and the sealing cover 16 is used for tightly sealing the water filling port 15, so that the air pressure in the bottle is ensured to be stable.

In the utility model, the drainage bottle 1 is externally printed with the fixed water level line 9, so that water can be conveniently added to the fixed water level line 9 each time.

In the utility model, the drainage bottle 1 is a transparent drainage bottle 1 made of polyvinyl chloride, so that the water adding condition and the air bubbling condition in the bottle can be observed conveniently.

The use principle comprises the steps of opening a sealing cover 16, adding normal saline from a water inlet 15 to a fixed water level line 9, screwing the sealing cover 16, adjusting the depth of the adjusting pipe 6 extending into the water to be 5-12cm according to the condition requirement, connecting a drainage pipe 2 and a negative pressure air pipe 3, connecting the drainage pipe 2 with a chest cavity 4, connecting the negative pressure air pipe 3 with a negative pressure suction mechanism 5, and starting negative pressure suction. After the negative pressure chest closed drainage device 100 with adjustable air pressure is connected with the negative pressure suction mechanism 5, air in the chest 4 starts to be discharged into the drainage bottle 1 from the drainage tube 2, when the negative pressure in the drainage bottle 1 exceeds 1 atmosphere-water column pressure, the adjusting tube 6 starts to continuously suck air from the outside of the drainage bottle 1, and the pressure in the drainage bottle 1 is kept to be kept at 1 atmosphere-water column pressure (the water column pressure is defined as the height differential pressure between the tail end of the adjusting tube 6 and the water surface in the drainage bottle 1), so that excessive negative pressure is not caused, and lung injury is avoided.

Example 1

As shown in fig. 4, the closed drainage device 100 of the thoracic cavity 4 with adjustable air pressure is used, and the adjusting tube 6 stretches into the water for 7cm, and the drainage tube 2 at this time is 3cm below the water surface. When the negative pressure suction mechanism 5 is just connected, negative pressure begins to be generated in the drainage bottle 1, and when the negative pressure in the drainage bottle 1 exceeds one atmosphere to 3cm of water column, the air in the chest cavity 4 is sucked into the drainage bottle 1 and discharged through the pressure difference.

Example two

As shown in figure 5, when the negative pressure in the drainage bottle 1 is continuously increased to one atmosphere to 7cm of water column, external air starts to continuously enter the drainage bottle 1 through the regulating tube 6, and the pressure in the drainage bottle 1 is kept constant to be 1 atmosphere to 7cm of water column, so that the negative pressure in the chest cavity 4 is kept to suck air.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.

Claims (9)

1. The negative pressure chest closed drainage device capable of adjusting air pressure comprises a drainage bottle, a drainage tube and a negative pressure air tube, wherein an inner cavity for filling fluid is formed in the drainage bottle, a first through hole and a second through hole are formed in the top surface of the drainage bottle, one end of the drainage tube is inserted into the inner cavity from the first through hole and extends to the position below the fluid, the other end of the drainage tube is used for being communicated with the chest, one end of the negative pressure air tube is communicated with the inner cavity through the second through hole, the other end of the negative pressure air tube is used for being connected with a negative pressure suction mechanism, and the negative pressure chest closed drainage device is characterized by further comprising an adjusting tube, a third through hole is formed in the top surface of the drainage bottle, and the bottom end of the adjusting tube enters the inner cavity from the third through hole and extends to the position below the fluid.

2. The negative pressure chest closed drainage device with adjustable air pressure as claimed in claim 1, wherein the bottom end of the adjusting tube extends into the lower part of the fluid for 5-12cm.

3. The negative pressure chest closed drainage device with adjustable air pressure according to claim 1 or 2, wherein the top end of the adjusting tube is positioned outside the drainage bottle and is provided with a filtering air filter element.

4. The negative pressure chest closed drainage device with adjustable air pressure according to claim 3, wherein a sealing rubber ring is assembled at the third through hole.

5. The negative pressure chest closed drainage device with adjustable air pressure as set forth in claim 4, wherein the outer wall of the adjusting tube is printed with corresponding graduation marks extending into the depth below the surface of the fluid at the bottom end of the adjusting tube.

6. The negative pressure chest closed drainage device with adjustable air pressure of claim 5, wherein a sealing component for sealing the third through hole is arranged outside the drainage bottle.

7. The negative pressure chest closed drainage device with adjustable air pressure as set forth in claim 6, wherein a water filling port is formed in the side wall of the drainage bottle, and a sealing cover is arranged at the water filling port.

8. The negative pressure chest closed drainage device with adjustable air pressure as claimed in claim 7, wherein a fixed water line is printed outside the drainage bottle.

9. The negative pressure chest closed drainage device with adjustable air pressure according to claim 8, wherein the drainage bottle is a transparent drainage bottle made of polyvinyl chloride.