Drainage bottle and chest drainage system comprising same
By setting up a sampling port and a liquid level sensor in the drainage bottle, the problem of excessively long sampling time for drainage fluid in the pleural drainage system was solved, enabling rapid and convenient collection and evaluation of drainage fluid.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CHEST HOSPITAL
- Filing Date
- 2024-12-18
- Publication Date
- 2026-04-28
AI Technical Summary
In existing thoracic drainage systems, the sampling time for drainage fluid is too long, making it difficult to meet the needs of laboratory testing or bacterial culture, especially when the drainage fluid is not flowing continuously, the sampling time is even longer.
Design a drainage bottle with a sampling port located on the lower surface of the bottle and connected to the drainage bottle cavity. Combined with a liquid level sensor and a partition structure, it can achieve rapid sampling and liquid level detection, and optimize the collection and control of drainage fluid.
The drainage bottle design allows medical staff to obtain a sufficient amount of drainage fluid sample within seconds, shortening the sampling time, facilitating timely assessment of treatment effectiveness, and improving sampling efficiency and equipment lifespan.
Smart Images
Figure CN224166646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, and in particular to a drainage bottle and a chest drainage system including the same. Background Technology
[0002] When there are chest lesions, cancer, or after surgery, the patient's pleural cavity will produce pleural effusion, tissue, gas, and infectious materials. The prolonged retention of these materials in the pleural cavity is detrimental to the patient's recovery and may even be life-threatening. Therefore, a pleural drainage system is needed to promptly drain the pleural effusion, gas, and other materials. A pleural drainage system typically consists of a suction device, a drainage bottle, and a drainage tube. The suction device provides negative pressure to the system, and the drainage bottle, specifically designed for storing drainage fluid during the drainage process in a digital pleural drainage system, is connected to the body via a drainage tube to store the drained bodily fluids and tissue fluid.
[0003] To conduct a more detailed assessment of the patient's treatment process and its effectiveness, medical staff typically take samples from the drainage fluid for testing or bacterial culture. Thus, sampling becomes an essential part of the treatment process. In current technology, the sampling port is located on the drainage tube near the patient's connector; the drainage fluid is extracted by inserting the needle tip of a syringe into the sampling port.
[0004] However, this design has the following problems: chest drainage takes a long time, and the drainage fluid is not continuous. It takes tens of minutes or even hours to produce 20-30ml of drainage fluid. When sampling, it generally takes ten to tens of minutes to obtain 3-5ml of drainage fluid. For collecting special fluids, two 20ml samples of fluid are needed (which will make the sampling time even longer) to meet the test volume requirements, resulting in excessively long sampling time. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the defect of excessively long sampling time of drainage fluid in the existing thoracic drainage system, and to provide a drainage bottle and a thoracic drainage system including the same.
[0006] The present invention solves the above-mentioned technical problems through the following technical solution:
[0007] A drainage bottle includes a sampling port located on the lower surface of the bottle body and communicating with the drainage bottle cavity.
[0008] In this technical solution, by providing this drainage bottle, medical staff can easily extract drainage fluid directly from the drainage bottle cavity through the sampling port, obtaining a sufficient amount of drainage fluid sample in just a few seconds, thus significantly shortening the drainage fluid sampling time. Since the sampling port is located at the bottom of the drainage bottle, samples can be collected even in the early stages of the drainage procedure when the total amount of drainage fluid is very small, facilitating timely assessment of the patient's treatment process and effectiveness by medical staff.
[0009] Preferably, the sampling port is recessed relative to the lower surface of the bottle body towards the drainage bottle cavity.
[0010] In this technical solution, the above settings can avoid the problem of insufficient pressure at the periphery of the sampling port, which facilitates the manufacturing of the sampling bottle and extends its service life.
[0011] Preferably, the drainage bottle further includes a first liquid level sensor, which is disposed inside the cavity of the drainage bottle and is offset from the sampling port in the vertical direction.
[0012] In this technical solution, by setting a first liquid level sensor, the liquid level of the drainage fluid can be actively and timely detected, preventing the drainage fluid from overflowing from the drainage bottle cavity and protecting the drainage bottle or other structures connected to the drainage bottle. By setting the first liquid level sensor and the sampling port in a vertically offset manner, the bottom of the sampling port and the drainage bottle cavity can be prevented from being uneven, which would affect the liquid level detection of the first liquid level sensor and reduce the error of the liquid level detection result.
[0013] Preferably, the drainage bottle further includes a first sealing portion, which is capable of accommodating the first liquid level sensor and a battery that powers the first liquid level sensor.
[0014] In this technical solution, the above settings can protect the first liquid level sensor with a relatively simple structure and enable the first liquid level sensor to obtain independent power supply.
[0015] Preferably, the drainage bottle is provided with a liquid inlet channel, one end of which is connected to the liquid inlet of the drainage bottle, and the other end of which is connected to the cavity of the drainage bottle through a connecting port. The first liquid level sensor is set at a height below the connecting port in the vertical direction.
[0016] In this technical solution, the above settings can further facilitate the first liquid level sensor to detect the liquid level of the drainage fluid in a timely manner, and prevent the drainage fluid from overflowing from the drainage bottle cavity through the connecting port.
[0017] Preferably, a partition extending vertically to the bottom of the drainage bottle cavity is provided inside the drainage bottle cavity, the sampling port is located on one side of the partition, and the connecting port is located on the other side of the partition.
[0018] In this technical solution, through the above settings, the baffle can buffer the oscillation of the internal drainage fluid when the drainage bottle is shaken. Since the connecting port, the first liquid level sensor, and the sampling port are located on opposite sides relative to the baffle, the oscillation of the drainage fluid on the connecting port side can be further reduced to reduce the impact of the oscillation of the drainage fluid on the structure of the first liquid level sensor and the sampling port. At the same time, it can prevent the drainage fluid at the connecting port from flowing into the drainage bottle cavity and triggering false detection of the first liquid level sensor.
[0019] Preferably, the height of the partition is equal to the height of the drainage bottle cavity; and / or,
[0020] The partition is provided with a buffer hole that extends to the bottom of the drainage bottle cavity.
[0021] In this technical solution, by setting the height of the partition to be equal to the height of the drainage bottle cavity, the oscillation of the drainage fluid in the entire drainage bottle cavity can be buffered; by setting a buffer hole on the partition extending to the bottom of the drainage bottle cavity, it is easy for the liquid levels on both sides of the partition to be restored to level in time, and it is also easy to take samples through the sampling port when the liquid level is low.
[0022] A chest drainage system comprising a drainage bottle as described above.
[0023] In this technical solution, by providing the thoracic drainage system, the sampling time for drainage fluid can be significantly shortened.
[0024] Preferably, the chest drainage system further includes a chest drainage unit and a suction pump;
[0025] The drainage bottle also includes a first liquid level sensor. The chest drainage unit is electrically connected to the suction pump and the first liquid level sensor. The suction pump is connected to the drainage bottle.
[0026] In this technical solution, through the above settings, the first liquid level sensor can send a liquid level signal to the chest drainage unit, thereby affecting the chest drainage unit's control of the suction pump. Before the first liquid level sensor detects that the drainage fluid level is at a preset height, the chest drainage unit controls the suction pump to perform drainage; when the first liquid level sensor detects that the drainage fluid level is at the preset height, the chest drainage unit controls the suction pump to stop drainage to prevent drainage fluid from overflowing.
[0027] Preferably, the chest drainage system further includes a chest drainage unit and a second liquid level sensor, wherein the chest drainage unit is electrically connected to the second liquid level sensor, and the second liquid level sensor is located inside the chest drainage unit.
[0028] In this technical solution, through the above settings, the second liquid level sensor can accurately detect the total amount of drainage fluid and feed it back to the thoracic drainage host.
[0029] The positive and progressive effects of this utility model are as follows:
[0030] By providing this drainage bottle and the chest drainage system including it, medical staff can easily extract drainage fluid directly from the drainage bottle cavity through the sampling port, obtaining a sufficient amount of drainage fluid sample in just a few seconds, significantly reducing the drainage fluid sampling time. Because the sampling port is located at the bottom of the drainage bottle, samples can be collected even in the early stages of the drainage procedure when the total amount of drainage fluid is very small, facilitating timely assessment of the patient's treatment process and effectiveness by medical staff. Attached Figure Description
[0031] Figure 1 This is a three-dimensional structural diagram of a drainage bottle according to an embodiment of the present invention.
[0032] Figure 2 This is a schematic diagram of the main structure of the diversion bottle according to an embodiment of the present invention.
[0033] Figure 3 This is a right-side structural schematic diagram of the drainage bottle according to an embodiment of the present invention.
[0034] Figure 4 This is a schematic diagram of the AA cross-sectional structure of a drainage bottle according to an embodiment of the present invention.
[0035] Figure 5 This is a schematic diagram of the BB cross-sectional structure of a drainage bottle according to an embodiment of the present invention.
[0036] Figure 6 This is a three-dimensional structural diagram of the BB section of the drainage bottle according to an embodiment of the present invention.
[0037] Figure 7 This is another three-dimensional structural diagram of the BB section of the drainage bottle according to an embodiment of the present invention.
[0038] Explanation of reference numerals in the attached figures:
[0039] Sampling port 11
[0040] Inlet 12
[0041] Connector 13
[0042] Negative pressure port 14
[0043] Pressure relief port 15
[0044] Bottle 2
[0045] Drainage bottle cavity 31
[0046] Inlet channel 32
[0047] Negative pressure channel 33
[0048] First sealing part 41
[0049] partition 5
[0050] Buffer hole 51 Detailed Implementation
[0051] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.
[0052] like Figures 1-7 As shown, this embodiment provides a drainage bottle, which includes a sampling port 11 located on the lower surface of the bottle body 2 and connected to the drainage bottle cavity 31. This allows medical personnel to directly extract drainage fluid from the drainage bottle cavity 31 through the sampling port 11, obtaining a sufficient sample in just a few seconds, significantly reducing the sampling time. Because the sampling port 11 is located at the bottom of the drainage bottle, samples can be collected even in the early stages of drainage procedures when the total amount of drainage fluid is very small, facilitating timely assessment of the patient's treatment process and effectiveness by medical personnel.
[0053] In this embodiment, the sampling port 11 is recessed relative to the lower surface of the bottle body 2 towards the drainage bottle cavity 31. This avoids the problem of insufficient pressure at the periphery of the sampling port 11 (if the sampling port protrudes outward relative to the lower surface of the bottle body, insufficient pressure at the periphery of the sampling port is usually caused by process limitations), facilitating the manufacture of the sampling bottle and extending its service life. Detailed structure of the sampling port 11 can be found in existing technology.
[0054] In this embodiment, the drainage bottle also includes a first liquid level sensor (not shown in the figure). The first liquid level sensor is disposed inside the drainage bottle cavity 31, and is vertically offset from the sampling port 11. The first liquid level sensor can detect the liquid level of the drainage fluid in a timely manner, preventing the drainage fluid from overflowing from the drainage bottle cavity 31 and protecting the drainage bottle or other structures connected to the drainage bottle. By vertically offsetting the first liquid level sensor from the sampling port 11, the bottom of the sampling port 11 and the drainage bottle cavity are prevented from being uneven, which would affect the liquid level detection of the first liquid level sensor, thereby reducing the error of the liquid level detection result.
[0055] In this embodiment, the drainage bottle further includes a first sealing part 41, which can accommodate the first liquid level sensor and the battery that powers the first liquid level sensor. This allows for the protection of the first liquid level sensor with a relatively simple structure, while also enabling the first liquid level sensor to receive independent power.
[0056] In this embodiment, a liquid inlet channel 32 is provided inside the drainage bottle. One end of the liquid inlet channel 32 is connected to the liquid inlet 12 of the drainage bottle, and the other end of the liquid inlet channel 32 is connected to the drainage bottle cavity 31 through a connecting port 13. The first liquid level sensor is set vertically below the connecting port 13. This further facilitates the first liquid level sensor to detect the liquid level of the drainage fluid in a timely manner, preventing the drainage fluid from overflowing from the drainage bottle cavity 31 through the connecting port 13.
[0057] In this embodiment, the drainage bottle is also provided with a negative pressure channel 33. One end of the negative pressure channel 33 is connected to the negative pressure port 14 of the drainage bottle. Near the negative pressure port 14, there is also a pressure relief port 15 (a one-way membrane is provided at the pressure relief port 15, through which gas can be released unidirectionally from the drainage bottle to the outside, so as to avoid the formation of positive pressure in the drainage bottle, which would cause damage to the patient during chest drainage treatment. The material of the one-way membrane is based on the prior art). The other end of the negative pressure channel 33 is connected to the liquid inlet channel 32 above the connecting port 13 to achieve gas-liquid separation, so as to prevent the drainage fluid from being drawn out from the negative pressure port 14, or the drainage fluid from being submerged in the pressure relief port 15, causing the one-way membrane to denature (in order to prevent the drainage fluid from flowing out and contaminating the outside, the one-way membrane usually contains small molecular particles that expand when they come into contact with liquid, so that the one-way membrane is neither permeable to water nor permeable to air after denaturation, and the drainage bottle must be discarded thereafter).
[0058] In this embodiment, a partition 5 extending vertically to the bottom of the drainage bottle cavity 31 is also provided inside the drainage bottle cavity 31. The first liquid level sensor and the sampling port 11 are located on one side of the partition 5, and the connecting port 13 is located on the other side of the partition 5. In this way, the partition 5 can buffer the oscillation of the drainage fluid inside the drainage bottle when it is shaken. And since the connecting port 13 is located on the opposite side of the first liquid level sensor and the sampling port 11 relative to the partition 5, the impact of the oscillation of the drainage fluid on the connecting port 13 side on the structure of the first liquid level sensor and the sampling port 11 can be further reduced. At the same time, it can prevent the first liquid level sensor from being falsely detected when the drainage fluid at the connecting port 13 flows into the drainage bottle cavity 31.
[0059] In this embodiment, the height of the partition 5 is equal to the height of the drainage bottle cavity 31, which can buffer the oscillation of the drainage fluid in the entire drainage bottle cavity 31.
[0060] In this embodiment, the partition 5 is provided with a buffer hole 51, which extends to the bottom of the drainage bottle cavity 31. This facilitates the timely restoration of the liquid levels on both sides of the partition 5 to be level, and also facilitates sampling through the sampling port 11 when the liquid level is low.
[0061] This embodiment also provides a chest drainage system, which includes the drainage bottle as described above. This significantly reduces the time required for drainage fluid sampling.
[0062] In this embodiment, the chest drainage system also includes a chest drainage unit and a suction pump (not shown in the figure); the drainage bottle also includes a first liquid level sensor. The chest drainage unit is electrically connected to the suction pump and the first liquid level sensor. The suction pump is connected to the drainage bottle through a negative pressure port 14 (the inlet 12 is connected to the patient through a drainage tube). Thus, the first liquid level sensor can send a liquid level signal to the chest drainage unit to influence the unit's control of the suction pump. Before the first liquid level sensor detects that the drainage fluid level is at a preset height, the chest drainage unit controls the suction pump to perform drainage; when the first liquid level sensor detects that the drainage fluid level is at the preset height, the chest drainage unit controls the suction pump to stop drainage to prevent overflow. The chest drainage unit is powered by external AC power, independent of the battery power of the first and second liquid level sensors, further improving the safety of the chest drainage system.
[0063] In this embodiment, the chest drainage system also includes a second liquid level sensor (not shown in the figure). The chest drainage unit is electrically connected to the second liquid level sensor, which is located inside the chest drainage unit. In this way, the second liquid level sensor can accurately detect the total amount of drainage fluid and report it back to the chest drainage unit.
[0064] In this embodiment, the second liquid level sensor, in addition to working in conjunction with the first liquid level sensor, is also electrically connected to an alarm light (not shown in the figure) on the outside of the drainage bottle. When the second liquid level sensor detects that the total volume of the drainage fluid is about to be full, the alarm light illuminates to alert medical staff and the patient, further improving safety. In other embodiments, the second liquid level sensor can also be independently connected to other alarm structures or devices controlling the drainage process.
[0065] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A drainage bottle, characterized in that, It includes a sampling port located on the lower surface of the body of the drainage bottle, and the sampling port is in communication with the drainage bottle cavity of the drainage bottle; The sampling port is recessed relative to the lower surface of the bottle body towards the drainage bottle cavity; The drainage bottle also includes a first liquid level sensor, which is disposed inside the cavity of the drainage bottle and is offset from the sampling port in the vertical direction.
2. The drainage bottle as described in claim 1, characterized in that, The drainage bottle also includes a first sealing part, which can accommodate the first liquid level sensor and a battery that powers the first liquid level sensor.
3. The drainage bottle as described in claim 1, characterized in that, The drainage bottle is provided with a liquid inlet channel. One end of the liquid inlet channel is connected to the liquid inlet of the drainage bottle, and the other end of the liquid inlet channel is connected to the cavity of the drainage bottle through a connecting port. The first liquid level sensor is set at a height below the connecting port in the vertical direction.
4. The drainage bottle as described in claim 3, characterized in that, The drainage bottle cavity is also provided with a partition extending vertically to the bottom of the drainage bottle cavity, the sampling port is located on one side of the partition, and the connecting port is located on the other side of the partition.
5. The drainage bottle as described in claim 4, characterized in that, The height of the partition is equal to the height of the drainage bottle cavity; and / or, The partition is provided with a buffer hole that extends to the bottom of the drainage bottle cavity.
6. A chest drainage system, characterized in that, It includes the drainage bottle as described in any one of claims 1-5.
7. The thoracic drainage system as described in claim 6, characterized in that, The chest drainage system also includes a chest drainage unit and a suction pump; The drainage bottle also includes a first liquid level sensor. The chest drainage unit is electrically connected to the suction pump and the first liquid level sensor. The suction pump is connected to the drainage bottle.
8. The thoracic drainage system as described in claim 6, characterized in that, The chest drainage system also includes a chest drainage unit and a second liquid level sensor. The chest drainage unit is electrically connected to the second liquid level sensor, which is located inside the chest drainage unit.