Negative pressure drainage bottle

Abstract

The utility model belongs to the field of medical instruments, and provides a negative pressure drainage bottle which comprises a liquid storage tank and a tank cover installed at the top of the liquid storage tank in a sealed mode, an interlayer is formed in the liquid storage tank and divides the liquid storage tank into an overflow cavity and a liquid storage cavity from top to bottom, an inflow pipe is integrally formed on the interlayer, and the overflow cavity is communicated with the liquid storage cavity. The bottom of the inflow pipe is communicated with the liquid storage cavity, an overflow opening is formed in the portion, located in the overflow cavity, of the inflow pipe, and the tank cover is communicated with a negative pressure pipe and a drainage pipe. When a nurse observes that the liquid in the liquid storage cavity is accumulated to a certain volume through the volume scales, the negative pressure device is turned off, drainage is completed, if the liquid in the liquid storage cavity is accumulated to a rated volume, but the nurse cannot turn off the negative pressure device in time, the liquid overflows into the overflow cavity from the overflow opening, and drainage is completed. When liquid in the overflow cavity submerges the overflow opening, the interior of the overflow cavity is in a large negative pressure state, the negative pressure valve is opened, air enters the overflow cavity from the negative pressure valve, and at the moment, the drainage action is stopped.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments, and in particular relates to a negative pressure drainage bottle. Background Art

[0002] Because surgery or treatment requires drainage of some fluids in the human body to the outside of the body, for example, after abdominal surgery, the fluid in the abdominal cavity needs to be drained out. Commonly used drainage devices include negative pressure drainage bags, negative pressure drainage bottles, etc. Among them, negative pressure drainage bottles are popular due to their simple structure and easy use.

[0003] During the use of the negative pressure drainage bottle, if the liquid in the negative pressure drainage bottle accumulates to the rated capacity, but the nursing staff does not have time to turn off the negative pressure device, the liquid in the drainage bottle will continue to rise. When the liquid contacts the negative pressure tube, the liquid in the negative pressure drainage bottle may be absorbed into the negative pressure device, damaging the negative pressure device. In addition, the existing negative pressure drainage bottles have a large bottle body and low scale accuracy, and it is impossible to accurately judge whether the rated capacity of the liquid has been reached. Utility Model Content

[0004] In view of the above problems, the purpose of the present utility model is to provide a negative pressure drainage bottle, aiming to solve the technical problems of poor safety and low reading accuracy of existing negative pressure drainage bottles.

[0005] The utility model adopts the following technical scheme: the negative pressure drainage bottle comprises a liquid storage tank and a tank cover sealed and installed on the top of the liquid storage tank, a partition is formed in the liquid storage tank, the partition divides the liquid storage tank into an overflow chamber and a liquid storage chamber from top to bottom, an inflow tube is integrally formed on the partition, the bottom of the inflow tube is connected with the liquid storage chamber, an overflow port is opened on the inflow tube and located in the overflow chamber, the tank cover is respectively connected with a negative pressure tube and a drainage tube, the end of the drainage tube is connected with the inflow tube, a negative pressure valve is also arranged on the tank cover, and a capacity scale is engraved on the liquid storage tank along the height direction and corresponding to the inflow tube.

[0006] Furthermore, a negative pressure port is opened on the tank cover, and the negative pressure valve includes a valve sleeve installed on the top of the tank cover, a T-shaped column is arranged in the valve sleeve, the bottom of the T-shaped column passes through the negative pressure port and is provided with a sealing gasket, and a spring is arranged on the T-shaped column and located on the top of the tank cover.

[0007] Furthermore, a negative pressure hole is opened on the valve sleeve.

[0008] Furthermore, a circular groove is formed on the top of the tank cover, and a conical connector is connected to the end of the drainage pipe. The conical connector passes through the circular groove and is installed on the top of the inflow pipe.

[0009] Furthermore, the tank cover is installed on the liquid storage tank in a sealed and pressed manner.

[0010] The beneficial effects of the utility model are as follows: when the nursing staff observes through the capacity scale that the liquid in the liquid storage chamber accumulates to a certain capacity, the negative pressure device can be turned off at this time, and the drainage action is completed at this time; if the liquid in the liquid storage chamber accumulates to the rated capacity, but the nursing staff does not have time to turn off the negative pressure device, at this time the liquid will overflow from the overflow port into the overflow chamber, and when the liquid in the overflow chamber floods the overflow port, at this time the overflow chamber is in a relatively large negative pressure state, the negative pressure valve is immediately opened, and air enters the overflow chamber from the negative pressure valve, at this time the drainage action stops and damage to the negative pressure device can also be avoided. On the other hand, the caliber of the inflow tube is smaller than the liquid storage chamber, and the scale accuracy of the inflow tube position is higher than that of the liquid storage chamber position, so when the liquid level enters the inflow tube, the liquid capacity can be accurately read. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model provides an overall exploded view of a negative pressure drainage bottle.

[0012] Figure 2 The utility model provides an exploded side view of a negative pressure drainage bottle.

[0013] Figure 3 The utility model provides a schematic diagram of a can cover. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0016] For the convenience of explanation, only the parts related to the embodiment of the present utility model are shown.

[0017] Combination Figure 1-3 As shown, the negative pressure drainage bottle includes a liquid storage tank 1 and a tank cover 7 sealed and installed on the top of the liquid storage tank. A partition 2 is formed in the liquid storage tank 1, and the partition divides the liquid storage tank into an overflow chamber and a liquid storage chamber from top to bottom. An inflow tube 3 is integrally formed on the partition, and the bottom of the inflow tube 3 is connected to the liquid storage chamber. An overflow port 4 is opened on the inflow tube 3 and located in the overflow chamber. The tank cover 7 is respectively connected with a negative pressure tube 5 and a drainage tube 6, and the end of the drainage tube 6 is connected to the inflow tube 3. The tank cover 7 is also provided with a negative pressure valve, and a capacity scale 9 is engraved on the liquid storage tank 1 along the height direction and corresponding to the inflow tube 3.

[0018] During surgery or treatment, the negative pressure drainage bottle can be used to drain some fluids in the human body to the outside of the body. For example, after abdominal surgery, the fluid in the abdominal cavity needs to be drained out.

[0019] In this structure, the liquid storage tank is made of transparent material, and a partition is formed in the liquid storage tank, and the partition divides the liquid storage tank into two cavities, an overflow cavity and a liquid storage cavity. The liquid storage cavity is used as a storage space for storing liquid. When the drainage bottle is filled with the required quantitative liquid, if the drainage tube continues to drain, the remaining liquid flows from the overflow port into the overflow cavity.

[0020] The volume scale is used to measure the volume of the liquid in the negative pressure drainage bottle. Since the diameter of the inflow tube is smaller than the liquid storage cavity, the scale accuracy of the inflow tube position is higher than that of the liquid storage cavity position, so when the liquid level enters the inflow tube, the liquid volume can be accurately read.

[0021] When using the negative pressure drainage bottle, first connect the negative pressure tube to the negative pressure device, then adjust the length of the drainage tube as needed, and insert the drainage tube into the patient's body to ensure the correct position. Then adjust the switch of the negative pressure device to a suitable negative pressure value, and then negative pressure is generated in the liquid storage tank, and the liquid flows from the drainage tube into the liquid storage cavity under the action of negative pressure.

[0022] When the nursing staff observes through the capacity scale that the liquid in the liquid storage chamber has accumulated to a certain capacity, the negative pressure device can be turned off at this time, and the drainage action is completed at this time. If the liquid in the liquid storage chamber accumulates to the rated capacity, but the nursing staff does not have time to turn off the negative pressure device, the liquid will overflow from the overflow port into the overflow chamber. When the liquid in the overflow chamber floods the overflow port, the overflow chamber is in a state of relatively large negative pressure. The negative pressure valve opens immediately, and air enters the overflow chamber from the negative pressure valve. At this time, the drainage action stops and damage to the negative pressure device can also be avoided. The negative pressure device is not the focus, so it will not be described here.

[0023] As a preferred structure, a negative pressure port (blocked in the figure) is opened on the tank cover 7, and the negative pressure valve includes a valve sleeve 81 installed on the top of the tank cover 7, a T-shaped column 82 is arranged in the valve sleeve 81, the bottom of the T-shaped column 82 passes through the negative pressure port (blocked in the figure) and is provided with a sealing gasket 83, and a spring 84 is arranged on the T-shaped column 82 and located at the top of the tank cover; a negative pressure hole 11 is opened on the valve sleeve 81.

[0024] If the overflow chamber is in a state of relatively large negative pressure, the air pressure in the overflow chamber is much lower than the atmospheric pressure. Under the action of the atmospheric pressure, air enters from the negative pressure hole and squeezes the sealing gasket. At this time, the spring is gradually compressed. When the sealing gasket falls off the tank cover, air enters the overflow chamber. The air pressure in the overflow chamber is restored to balance.

[0025] In this structure, the tank cover is installed on the liquid storage tank in a sealed and pressed manner. After removing the drainage tube, the tank cover can be removed from the liquid storage tank by pushing it outward. After the negative pressure drainage bottle drains and completes a series of subsequent work, the liquid storage tank can be recycled, cleaned, disinfected, and then reused.

[0026] Further as a preferred structure, Figure 1 , Figure 3 A circular groove 12 is formed on the top of the tank cover 7 , and a conical connector 13 is connected to the end of the drainage tube 6 . The conical connector 13 passes through the circular groove 12 and is installed on the top of the inflow tube 3 .

[0027] In the embodiment, the drainage tube can be disassembled from the negative pressure drainage bottle so that drainage tubes of different specifications can be replaced according to actual conditions. When the drainage tube needs to be connected to the negative pressure drainage bottle, the tank cover has been installed on the liquid storage tank as required before. At this time, the conical connector is passed through the circular groove and pressed down to the top of the inflow tube. At this time, the installation of the drainage tube is completed. In this structure, the connector adopts a conical structural design, so that the connector can be installed on the top of the inflow tube more stably and the sealing effect is better.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the present utility model.

Claims

1. A negative pressure drainage bottle, characterized in that: The negative pressure drainage bottle includes a liquid storage tank and a tank cover sealed and installed on the top of the liquid storage tank. A partition is formed in the liquid storage tank, and the partition divides the liquid storage tank into an overflow chamber and a liquid storage chamber from top to bottom. An inflow tube is integrally formed on the partition, and the bottom of the inflow tube is connected to the liquid storage chamber. An overflow port is opened on the inflow tube and located in the overflow chamber. The tank cover is respectively connected with a negative pressure tube and a drainage tube, and the end of the drainage tube is connected to the inflow tube. A negative pressure valve is also provided on the tank cover, and a capacity scale is engraved on the liquid storage tank along the height direction and corresponding to the inflow tube.

2. A negative pressure drainage bottle as claimed in claim 1, characterized in that: A negative pressure port is provided on the tank cover, and the negative pressure valve comprises a valve sleeve installed on the top of the tank cover, a T-shaped column is provided in the valve sleeve, the bottom of the T-shaped column passes through the negative pressure port and is provided with a sealing gasket, and a spring is provided on the T-shaped column and located on the top of the tank cover.

3. A negative pressure drainage bottle as claimed in claim 2, characterized in that: The valve sleeve is provided with a negative pressure hole.

4. A negative pressure drainage bottle as claimed in claim 3, characterized in that: A circular groove is formed on the top of the tank cover, and a conical connector is connected to the end of the drainage pipe. The conical connector passes through the circular groove and is installed on the top of the inflow pipe.

5. A negative pressure drainage bottle as claimed in claim 4, characterized in that: The tank cover is installed on the liquid storage tank in a sealed and pressed manner.

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