Thoracic cavity closed drainage water seal bottle with split liquid storage cavity, negative pressure display cavity and water seal cavity

Abstract

The utility model provides a thoracic cavity closed drainage water seal bottle with a liquid storage cavity, a negative pressure display cavity and a water seal cavity split, which comprises a liquid storage bottle and a negative pressure control device, the negative pressure control device comprises the negative pressure display cavity, the water seal cavity and a vacuum pump, the liquid storage bottle is detachably connected with the negative pressure control device through a connecting device, and the water seal cavity is connected with the vacuum pump. The liquid storage bottle is communicated with the water seal cavity, the negative pressure display cavity is communicated with the water seal cavity, and the water seal cavity is communicated with the vacuum pump. The liquid storage bottle and the negative pressure control device can be conveniently connected or detached, when waste liquid in the liquid storage bottle is large, one liquid storage bottle can be conveniently replaced, the negative pressure control device does not need to be replaced, and the use cost is low; the negative pressure control device can be used in various hospitals such as any common hospitals and shelter hospitals, and has high practicability; when the negative pressure control device breaks down, sudden pressure change of the liquid storage cavity and the thoracic cavity of a patient is prevented, and damage to the thoracic cavity of the patient is prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a closed pleural drainage water-seal bottle that is suitable for the treatment of patients with pneumothorax, pleural effusion, or those requiring closed drainage after pleural surgery. The bottle has a separate fluid storage chamber, a negative pressure display chamber, and a water seal chamber. Background Technology

[0002] If there are lesions in the chest cavity and lungs, gas or fluid will accumulate in the chest cavity, causing a decrease in lung capacity and difficulty breathing. Closed chest drainage uses negative pressure to suction out the gas and fluid caused by the lesion, restoring the chest cavity to normal and allowing for recovery. Drainage devices, commonly known as drainage bottles, are typically single-chambered (only a reservoir), double-chambered (a reservoir plus a water seal), or triple-chambered (a reservoir, a water seal, and a display chamber). 1. Most existing drainage bottles can only be used in locations with negative pressure equipment when draining pleural effusion and gas; they cannot be used in places without a negative pressure source. 2. Existing closed chest drainage bottles integrate the reservoir, water seal, and display chambers. These bottles are for single use only, and each bottle is generally used for no more than two days, requiring replacement every two days, resulting in high costs for patients. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the prior art by providing a separate pleural drainage water seal bottle with a separate storage chamber, negative pressure display chamber, and water seal chamber. This bottle offers excellent negative pressure protection, prevents waste liquid backflow, and features an intelligent and rational structural design. It is suitable for use in locations requiring negative pressure suction but lacking dedicated negative pressure equipment. The bottle is easy to install and disassemble, facilitates bottle replacement, has low operating costs, and its display window allows for easy observation and adjustment of flow rate and negative pressure. To achieve the above objectives, this utility model adopts the following technical solution:

[0004] A closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber includes a storage bottle and a negative pressure control device. The negative pressure control device includes a negative pressure display chamber, a water seal chamber, and a vacuum pump. The storage bottle is detachably connected to the negative pressure control device via a connecting device. The storage bottle is connected to the water seal chamber, the negative pressure display chamber is connected to the water seal chamber, and the water seal chamber is connected to the vacuum pump. This design allows for easy connection and disconnection of the storage bottle and the negative pressure control device. When the storage bottle contains a large amount of waste liquid, it can be easily replaced without replacing the negative pressure control device, resulting in low operating costs.

[0005] Preferably, the storage bottle has a storage cavity with graduation lines, a drain valve at the bottom of the storage cavity with a drain hole, a support foot at the bottom of the storage cavity, a handle at the top, a thoracic gas-fluid drainage tube at the top of the storage cavity, a first exhaust pipe connected to the inner side of the top of the storage cavity, and a storage bottle connecting pipe with its two ends connected to the first exhaust pipe and a negative pressure control device respectively on the outer wall of the storage cavity. The storage bottle connecting pipe is integrally formed on the outer wall of the storage cavity. A float is provided at the end of the first exhaust pipe, and a float rod positioned at the center of the float passes vertically upward through the first exhaust pipe and is fixed to the top shell of the storage cavity. The waste liquid discharge valve can discharge waste liquid from the storage bottle, which is beneficial for environmental protection.

[0006] Preferably, the negative pressure control device has a negative pressure display cavity on its left side. This cavity comprises a U-shaped conduit consisting of a left tube and a right tube connected at their bottoms. The top of the right tube communicates with the bottom of a water seal cavity located at the top of the negative pressure control device, while the top of the left tube passes through the top of the negative pressure control device and is open to the atmosphere. A first connecting pipe for the negative pressure control device is located on the top left side wall of the negative pressure control device, which is fitted with a connecting pipe for a liquid storage bottle. A silicone sealant is located inside the first connecting pipe, and the liquid storage bottle connecting pipe is sealed to the first connecting pipe via the silicone sealant. A second connecting pipe for the negative pressure control device is integrally formed at the top of the negative pressure control device, and this second connecting pipe is connected to the first connecting pipe. The pipes are interconnected. The right side of the second connecting pipe of the negative pressure control device is integrally connected to a second exhaust pipe and a third pipe, with a one-way valve at the inlet end of the second connecting pipe. The left pipe has a scale, with the maximum value at the top being zero, gradually decreasing downwards. The scale at the bottom of the U-shaped pipe in the negative pressure display chamber is the minimum negative pressure. The negative pressure control device also includes a pressure controller connected to a vacuum pump, a pressure sensor connected to the pressure controller, and a pressure adjustment knob. The top of the water seal chamber has an exhaust port, which is connected to the vacuum pump via a pipe. The vacuum pump has a third exhaust pipe with a valve. The pressure sensor is connected to the third pipe. The bottom of the negative pressure control device also has a support foot.

[0007] Preferably, the height between the liquid surface and the U-shaped bottom of the negative pressure display cavity when the liquid is in a non-negative pressure state is the pressure limiting water level height H, and the pressure limiting water level height H is preferably less than or equal to 20 cm.

[0008] Preferably, the pressure-limiting water level H is 15-20 cm.

[0009] In use, add an appropriate amount of liquid to the through hole at the top of the left tube. The liquid level should be flush with the zero mark of the left tube when there is no negative pressure, which is the liquid level of the water seal chamber. The lower end of the second exhaust pipe, integrally formed on the right side of the second connecting pipe of the negative pressure control device, is below the zero mark. The liquid is pure water or physiological saline.

[0010] Preferably, the connecting device includes a liquid storage bottle connecting pipe, a first connecting pipe for the negative pressure control device, a silicone sealant, a lower connecting piece, and an upper connecting piece.

[0011] Preferably, the lower connector includes a U-shaped groove for the liquid storage bottle and a U-shaped groove for the negative pressure control device that is located at the lower end of the negative pressure control device and cooperates with the U-shaped groove for the liquid storage bottle. The opening of the U-shaped groove for the negative pressure control device is opposite to the opening of the U-shaped groove for the liquid storage bottle.

[0012] Preferably, the upper connector includes a latch hinged to the upper edge of the liquid storage bottle and a locking groove provided on the upper edge of the negative pressure control device to cooperate with the latch.

[0013] Preferably, the float rod positioned at the center of the float ball is connected to the float rod perforation on the first exhaust pipe in a sealed manner.

[0014] Preferably, the housings of the liquid storage bottle, the negative pressure display chamber, and the water seal chamber negative pressure control device are all made of transparent material.

[0015] Preferably, the vacuum pump is equipped with a power supply battery.

[0016] The beneficial effects of this utility model are as follows:

[0017] The liquid storage bottle can be detachably connected to the negative pressure control device via a connecting device; it is easy to install and disassemble, convenient to replace the liquid storage bottle, and has low operating costs.

[0018] The negative pressure control device can be used in any type of hospital, including general hospitals and makeshift hospitals, as well as in places without negative pressure source equipment, and is highly practical.

[0019] The structural design of the negative pressure display chamber and water seal chamber provides excellent negative pressure protection. When the negative pressure setting is too high, it can automatically protect against damage to the patient's chest cavity or lungs caused by excessive negative pressure. Furthermore, when reading the negative pressure value, the liquid column in the left tube faces downwards, making the reading more accurate and consistent with reading habits. The inlet end of the second connecting tube is equipped with a one-way valve to prevent sudden pressure changes in the reservoir and the patient's chest cavity in case of a malfunction in the negative pressure control device, thus preventing damage to the patient's chest cavity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the liquid storage bottle structure of this utility model;

[0022] Figure 3 A schematic diagram of the negative pressure control device of this utility model;

[0023] Figure 4 This is a schematic diagram of the negative pressure display cavity of this utility model;

[0024] Figure 5 This is a structural schematic diagram of the first embodiment of the present invention in use.

[0025] Figure 6 This is a structural schematic diagram of the second embodiment of the present invention in use. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The negative pressure protection value in this embodiment is set to -20 cm water column. In practice, medical staff will select the water seal bottle device corresponding to the required negative pressure protection value according to the patient's actual needs. The arrows in the figure indicate the direction of gas flow.

[0028] like Figures 1-6 As shown, a closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber includes a storage bottle 10 and a negative pressure control device 20. The negative pressure control device includes a negative pressure display chamber 200, a water seal chamber 201, and a vacuum pump 202. The storage bottle 100 is detachably connected to the negative pressure control device 200 via a connecting device. The vacuum pump 202 is equipped with a power supply battery.

[0029] like Figure 2As shown, the liquid storage bottle 10 is provided with a liquid storage chamber 101, and the liquid storage chamber 101 is provided with scale lines for easy observation of the waste liquid volume. The bottom of the liquid storage chamber 101 is provided with a drain hole 102, and a drain valve 103 is provided at the drain hole 102. The bottom end of the liquid storage chamber is also provided with a liquid storage bottle support foot 104 to support the liquid storage chamber. The top of the liquid storage bottle 10 is provided with a handle 105 for lifting. The top of the liquid storage chamber 101 is provided with a thoracic gas-fluid drainage tube 106. The top inner side of the liquid storage chamber 101 is connected to a first exhaust pipe 107. The outer wall of the liquid storage chamber 101 is provided with a liquid storage bottle connecting pipe 108 with two ends connected to the first exhaust pipe 107 and the negative pressure control device 20, respectively. A float 109 is provided at the port of the first exhaust pipe 107. The float rod 110, which is positioned at the center of the float 109, passes vertically upward through the first exhaust pipe 107 and is fixed to the top shell of the liquid storage chamber 101.

[0030] like Figures 1-3 As shown, the left end of the negative pressure control device 20 is provided with a negative pressure display cavity 200. The negative pressure display cavity 200 includes a left pipe 220 and a right pipe 221 connected at the bottom, forming a U-shaped pipeline. The top of the right pipe 221 is connected to the bottom of the water seal cavity 201 located at the top of the negative pressure control device 20. The top of the left pipe 220 passes through the top of the negative pressure control device 20 and is connected to the atmosphere. The top left side wall of the negative pressure control device is provided with a first connecting pipe 203 for the negative pressure control device, which is connected to the liquid storage bottle connecting pipe 108. The inner side of the first connecting pipe 203 is provided with a silicone seal 204. The liquid storage bottle connecting pipe 108 is sealed to the first connecting pipe 203 through the silicone seal 204 to form a connection between the liquid storage cavity 101 and the water seal cavity 201. The upper end of the negative pressure control device is integrally formed with a second connecting pipe 205 for the negative pressure control device. The second connecting pipe 205 for the negative pressure control device is connected to the first connecting pipe 203 for the negative pressure control device. The second connecting pipe 205 of the control device is integrally formed with a second exhaust pipe 206 and a third pipe 207 on its right side. A one-way valve 208 is provided at the inlet end of the second connecting pipe 205. The left pipe 220 is marked with a scale. The maximum value of the scale at the upper end of the left pipe 220 is zero, and it gradually decreases downwards. The scale value at the bottom end of the U-shaped pipe of the negative pressure display chamber 200 is the minimum negative pressure. The negative pressure control device 20 is also equipped with a pressure controller 209 connected to the vacuum pump 202, a pressure sensor 210 connected to the pressure controller 209, and a pressure adjustment knob 211. The top end of the water seal chamber 201 is provided with an exhaust port 212. The exhaust port 212 is connected to the vacuum pump 202 through a pipe. The vacuum pump is equipped with a third exhaust pipe 215, and the third exhaust pipe 215 is equipped with a valve 214. The pressure sensor 210 is connected to the third pipe 207 to collect negative pressure data. The bottom end of the negative pressure control device 20 is also provided with a third exhaust pipe 216.

[0031] likeFigures 1-6 As shown, the connecting device includes a liquid storage bottle connecting pipe 108, a negative pressure control device first connecting pipe 203, a silicone sealant 204, a lower connecting member, and an upper connecting member; the lower connecting member includes a liquid storage bottle U-shaped groove 111 and a negative pressure control device U-shaped groove 217 that cooperates with the liquid storage bottle U-shaped groove 111 located at the lower end of the negative pressure control device 20, the groove opening of the negative pressure control device U-shaped groove 217 being opposite in direction to the groove opening of the liquid storage bottle U-shaped groove 111; the upper connecting member includes a latch 112 hinged to the upper side edge of the liquid storage bottle 10 and a locking groove 213 located at the upper edge of the negative pressure control device 20 that cooperates with the latch 112.

[0032] like Figures 1-6 As shown, the float 110, which is centrally positioned on the float ball 109, is connected to the float through the hole on the first exhaust pipe 107 in a sealed manner; the housings of the liquid storage bottle 10, the negative pressure display chamber 200, the water seal chamber 200, and the negative pressure control device 20 are all made of transparent material, which is convenient for observation.

[0033] The pressure limit water level is H; the negative pressure protection is -20 cm water column, i.e., H=20 cm. Doctors can choose the appropriate H value according to the patient's actual situation.

[0034] In use, connect the storage bottle 10 to the negative pressure control device 20 via the connecting device, and add an appropriate amount of liquid, such as purified water or physiological saline, to the through hole at the top of the left tube 220 of the negative pressure display chamber 200. The liquid level should be flush with the zero mark on the left tube when there is no negative pressure, which is the water seal chamber liquid level. The lower end of the second exhaust pipe, integrally formed on the right side of the second connecting tube of the negative pressure control device 20, is below the zero mark, facilitating the filtering of exhaust gas through the liquid before it is discharged by the vacuum pump 202. Connect the pleural air-fluid drainage tube 106 to the matching pleural air-fluid drainage hose to the lower part of the patient's pleural cavity. In the fluid compartment or upper chest cavity (as prescribed by the doctor), open valve 214 on the third exhaust pipe 215, turn on vacuum pump 202, and set the negative pressure value as needed using pressure adjustment knob 211 (factory setting negative pressure is 15 cm water column). (When using the hospital's existing negative pressure source, connect the hospital's negative pressure pipe to the top of the water seal chamber 201, which has an exhaust port 212, and the vacuum pump 202 is in the off state). Under the action of negative pressure, the gas and fluid in the chest cavity enter the fluid storage chamber 101 through the chest cavity gas and fluid drainage tube 106. The waste gas can be quickly discharged from the chest cavity through vacuum pump 202, rapidly reducing the gas in the chest cavity. Example 1

[0035] like Figure 5As shown, when the absolute value of the set negative pressure corresponds to a water level H that is less than the absolute value of the pressure limit water level of -20 cm water column (corresponding to a pressure limit water level H of 20 cm), atmospheric pressure will push the water surface in the left tube 220 downward, and the negative pressure scale corresponding to the water column liquid level in the left tube 220 is the actual negative pressure value. The water column liquid level is higher than the U-shaped bottom end of the negative pressure display cavity 200. Under the action of negative pressure, the water surface in the second exhaust pipe 206 drops to the lower port. The gas in the chest cavity enters the water seal cavity 201 through the second exhaust pipe 206. The air bubbles pass through the upper liquid of the water seal cavity 201, enter the gas layer on the liquid surface, and are discharged in sequence through the exhaust port 212, vacuum pump 202, and third exhaust pipe 215 at the top of the water seal cavity 201. Example 2

[0036] like Figure 6 As shown, when the absolute value of the set negative pressure corresponds to a water level H that is greater than the absolute value of the pressure limit water level of -20 cm water column (20 cm water column), atmospheric pressure will push the water surface in the left tube 220 downward, and the water surface in the left tube 220 will eventually be level with the bottom end of the U-shaped tube of the negative pressure display chamber 200. External air enters the right tube 221 through the bottom end of the U-shaped tube, and the air bubble enters the water seal chamber 201, limiting the continued increase of the maximum negative pressure value (absolute value), protecting the patient's safety, and playing a negative pressure protection role. Under the action of negative pressure, the water surface in the second exhaust pipe 206 drops to the lower port. The gas in the thoracic cavity enters the water seal chamber 201 through the second exhaust pipe 206. The air bubble passes through the upper part of the water seal chamber 201, enters the gas layer on the liquid surface, and is discharged in sequence through the exhaust port 212, vacuum pump 202, and third exhaust pipe 215 at the top of the water seal chamber 201. The operating principle is simple and the structure is scientific and reasonable.

[0037] If the vacuum pump 202 malfunctions and the air pressure in the water seal chamber increases, the one-way valve 208 at the inlet end of the second connecting pipe 205 is designed to prevent sudden pressure changes in the reservoir and the patient's pleural cavity when the negative pressure control device malfunctions, thus preventing damage to the patient's pleural cavity.

[0038] When the top of the water seal chamber 201 is equipped with an exhaust port 212 that is directly connected to a negative pressure generating device (such as when a negative pressure generating device is used in a hospital), the operating principle is the same as above and will not be repeated.

[0039] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber, comprising a storage bottle (10), characterized in that: It also includes a negative pressure control device (20), which includes a negative pressure display chamber (200), a water seal chamber (201), and a vacuum pump (202). The liquid storage bottle (10) is detachably connected to the negative pressure control device (20) via a connecting device. The liquid storage bottle (10) is connected to the water seal chamber (201), the negative pressure display chamber (200) is connected to the water seal chamber (201), and the water seal chamber (201) is connected to the vacuum pump (202).

2. The closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber as described in claim 1, characterized in that: The storage bottle (10) is provided with a storage cavity (101), the storage cavity (101) is provided with graduation lines, the bottom of the storage cavity (101) is provided with a drain hole (102), a drain valve (103) is provided at the drain hole (102), the bottom end of the storage cavity is also provided with a storage bottle support foot (104), the top of the storage bottle (10) is provided with a handle (105), the top of the storage cavity (101) is provided with a thoracic air-fluid drainage tube (106), and the top of the storage cavity (101) is connected to the inner side of the first exhaust pipe (…). 107), the outer wall of the liquid storage chamber (101) is provided with a liquid storage bottle connecting pipe (108) with the first exhaust pipe (107) and the negative pressure control device (20) respectively at both ends. The liquid storage bottle connecting pipe (108) is integrally formed on the outer wall of the liquid storage chamber (101). A float (109) is provided at the port of the first exhaust pipe (107). The float rod (110) positioned at the center of the float (109) passes vertically upward through the first exhaust pipe (107) and is fixed to the top shell of the liquid storage chamber (101).

3. The closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber according to claim 2, characterized in that: The negative pressure control device (20) has a negative pressure display chamber (200) on its left side. The negative pressure display chamber (200) includes a left pipe (220) and a right pipe (221) connected at the bottom to form a U-shaped pipeline. The top of the right pipe (221) is connected to the bottom of the water seal chamber (201) located at the top of the negative pressure control device (20). The top of the left pipe (220) passes through the top of the negative pressure control device (20) and is connected to the atmosphere. The left side wall of the top of the negative pressure control device is provided with a negative pressure display chamber (200) that is connected to the liquid storage bottle connecting pipe (108). The negative pressure control device has a first connecting pipe (203), and a silicone seal (204) is provided on the inner side of the first connecting pipe (203). The liquid storage bottle connecting pipe (108) is sealed to the first connecting pipe (203) of the negative pressure control device through the silicone seal (204). The upper end of the negative pressure control device is integrally formed with a second connecting pipe (205), which is connected to the first connecting pipe (203) of the negative pressure control device. The right side of the connecting pipe (205) is integrally formed with a second exhaust pipe (206) and a third pipe (207). The inlet end of the second connecting pipe (205) is equipped with a one-way valve (208). The left pipe (220) is marked with a scale. The maximum value of the scale at the upper end of the left pipe (220) is zero, and it gradually decreases downwards. The scale value at the bottom end of the U-shaped pipe of the negative pressure display chamber (200) is the minimum negative pressure. The negative pressure control device (20) is also equipped with a pressure controller (209) connected to the vacuum pump (202) and a pressure... The controller (209) is connected to a pressure sensor (210) and a pressure adjustment knob (211). The top of the water seal chamber (201) is provided with an exhaust port (212). The exhaust port (212) is connected to a vacuum pump (202) through a pipe. The vacuum pump is provided with a third exhaust pipe (215). The third exhaust pipe (215) is provided with a valve (214). The pressure sensor (210) is connected to a third pipe (207). The bottom of the negative pressure control device (20) is also provided with a negative pressure control device support foot (216).

4. The closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber as described in claim 3, characterized in that: The connecting device includes a liquid storage bottle connecting pipe (108), a negative pressure control device first connecting pipe (203), a silicone sealant (204), a lower end connector, and an upper end connector.

5. A closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber as described in claim 4, characterized in that: The lower connector includes a U-shaped groove (111) for the liquid storage bottle and a U-shaped groove (217) for the negative pressure control device that is matched with the U-shaped groove (111) for the liquid storage bottle located at the lower end of the negative pressure control device (20). The opening of the U-shaped groove (217) for the negative pressure control device is opposite to the opening of the U-shaped groove (111) for the liquid storage bottle.

6. The closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber according to claim 4, characterized in that: The upper connector includes a latch (112) hinged to the upper side edge of the liquid storage bottle (10) and a locking groove (213) provided on the upper edge of the negative pressure control device (20) to cooperate with the latch (112).

7. A closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber according to claim 2, characterized in that: The float (110) positioned at the center of the float (109) is connected to the float through the hole on the first exhaust pipe (107) in a sealed manner.

8. A closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber as described in claim 6, characterized in that: The housings of the liquid storage bottle (10), the negative pressure display chamber (200), the water seal chamber (201), and the negative pressure control device (20) are all made of transparent material.

9. A closed thoracic drainage water-sealed bottle with separate storage chamber, negative pressure display chamber, and water seal chamber according to claim 1, characterized in that: The vacuum pump (202) is equipped with a power supply battery.

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