Alarm type negative pressure sputum suction device

Abstract

The utility model discloses an alarm type negative pressure sputum suction device which comprises a sputum suction bottle, a sealing cover is detachably connected to the top of the sputum suction bottle, a first connecting pipe and a second connecting pipe are arranged on the sealing cover in a penetrating mode, the top end of the first connecting pipe is connected to one end of an exhaust pipe, and the other end of the exhaust pipe is connected to a negative pressure valve. According to the device, air is pumped into the sputum suction bottle through the negative pressure valve to be in a negative pressure environment, sputum of a patient is sucked into the sputum suction bottle through the sputum suction pipe under the action of negative pressure, the sputum suction bottle is provided with the alarm monitoring assembly, and the alarm monitoring assembly is arranged on the sputum suction bottle. The pressure sensor dynamically detects the pressure in the bottle, when abnormal negative pressure is detected, an alarm is automatically triggered, the negative pressure intensity is adjusted, and physical damage to the sputum suction bag is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure sputum suction devices, in particular to an alarm type negative pressure sputum suction device. Background Technique

[0002] Nasal congestion and runny nose are the most common symptoms in children. The nasal mucosa of children is thin and tender. When they are ill or stimulated by external irritants, it is easy to cause congestion and edema of the nasal mucosa and produce secretions. Coupled with the relatively narrow nasal cavity in children, the secretions are easy to cause nasal congestion and blockage, and even spread downward to form bronchitis and pneumonia. Usually, after the baby's nasal congestion, the nose cannot breathe, and it is necessary to breathe with the mouth open, which is very uncomfortable.

[0003] Sputum suction refers to a method of sucking out the secretions in the respiratory tract through the oral cavity, nasal cavity, and artificial airway to keep the respiratory tract unobstructed and prevent complications such as aspiration pneumonia, atelectasis, and asphyxia. It is applicable to comatose patients and patients with particularly a large amount of sputum who may have asphyxia.

[0004] Traditional negative pressure sputum suction systems usually rely on the constant suction of a central negative pressure source and passively maintain air pressure balance through physical structures (such as ventilation holes and anti-reflux valves). However, the existing technology has the following defects: First, there is a lack of real-time pressure monitoring, and abnormal pressures in the inner cavity of the sputum suction bottle (such as excessive negative pressure caused by blocked ventilation holes or positive pressure caused by full sputum overflow) cannot be detected immediately, which easily leads to the collapse, rupture of the sputum suction bag or sputum backflow and pollution of the central pipeline; Second, it relies on manual observation. The full liquid state needs to be judged by medical staff with the naked eye, the operation is frequently interrupted, and it is easily missed in emergency scenarios, increasing the risk of cross-infection. Content of the Utility Model

[0005] The purpose of the utility model is to provide an alarm type negative pressure sputum suction device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An alarm type negative pressure sputum suction device, including a sputum suction bottle, the top of the sputum suction bottle is detachably connected with a sealing cover, the sealing cover is penetrated with a first connecting pipe and a second connecting pipe, the top end of the first connecting pipe is connected to one end of an air extraction pipe, the other end of the air extraction pipe is connected to a negative pressure valve, the second connecting pipe is connected to one end of a sputum suction pipe, the other end of the sputum suction pipe is connected to a sputum suction head, and an alarm monitoring component is arranged on one side of the sputum suction bottle.

[0007] A three-way valve is arranged on the outer side of the sputum suction bottle. The three-way valve includes a sputum suction bag interface, a sputum suction bottle interface and a negative pressure interface. The sputum suction bottle interface is communicated with the cavity of the sputum suction bottle;

[0008] One side of the sputum suction bottle is also provided with a protection tube, which includes an arc tube and three horizontal tubes. The arc tube is fixedly connected to one side of the sputum suction bottle through the three horizontal tubes. The alarm monitoring component is located above the three-way valve and inside the arc tube and the connecting tube, and the protection tube and the three-way valve jointly protect the alarm monitoring component.

[0009] Preferably, the alarm monitoring component includes a housing, on which there is an audible and visual alarm. Inside the housing, there are a controller and a battery. Outside the housing, there are a display screen and a charging port. At the top of the housing, there is a pressure sensor, the bottom end of which extends out of the housing, and the top end of the pressure sensor is connected to the controller. The sensing end of the pressure sensor is located inside the sputum suction bottle (between the sputum suction bottle and the sputum suction bag); the audible and visual alarm, the controller, the display screen, the charging port and the pressure sensor are all electrically connected to the battery, and the controller is electrically connected to the audible and visual alarm, the display screen and the pressure sensor.

[0010] Preferably, a sputum suction bag is detachably connected to the bottom of the sealing cover, and the first connecting tube and the second connecting tube are communicated with the sputum suction bag.

[0011] Preferably, the sputum suction bag is transparent, which is convenient for observing the internal situation.

[0012] Preferably, the air extraction tube includes a first air extraction tube and a second air extraction tube. One end of the first air extraction tube is connected to the sputum suction bag interface, and the other end of the first air extraction tube is connected to the sputum suction bag; one end of the second air extraction tube is connected to the negative pressure interface, and the other end of the second air extraction tube is connected to the negative pressure valve.

[0013] Preferably, the pressure sensor is a piezoresistive sensor.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. This device pumps air into the sputum suction bottle to a negative pressure environment through the negative pressure valve. Under the action of negative pressure, the sputum of the patient is sucked into the sputum suction bottle through the sputum suction tube. An alarm monitoring component is provided on the sputum suction bottle, and the pressure sensor dynamically detects the pressure between the sputum suction bag and the inside of the bottle. When an abnormal negative pressure (such as < -400 mmHg) is detected, an alarm is automatically triggered and the negative pressure intensity is adjusted to prevent physical damage to the sputum suction bag.

[0016] 2. By combining the pressure threshold and trend analysis (such as a sudden increase in pressure indicating sputum blockage of the ventilation hole), early warning of the liquid full state is realized, replacing manual observation.

[0017] 3. Through the setting of the protection tube, the protection tube and the three-way valve can jointly protect the alarm monitoring component and prevent the alarm monitoring component from being damaged by falling. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2 It is a schematic diagram of the distribution structure of the three-way valve and the arc tube of the present utility model.

[0020] Figure 3 It is a schematic diagram of the connection structure of the sputum suction bag of the present utility model.

[0021] Figure 4 It is a schematic diagram of the external structure of the alarm monitoring component of the present utility model.

[0022] Figure 5 It is a side sectional view of the alarm monitoring component of the present utility model.

[0023] In the attached drawing reference numerals: 1, sputum suction bottle; 2, sealing cover; 3, first connecting pipe; 4, second connecting pipe; 5, air extraction pipe; 6, sputum suction pipe; 7, alarm monitoring component; 8, housing; 9, sound and light alarm; 10, controller; 11, storage battery; 12, display screen; 13, charging port; 14, pressure sensor; 15, first air extraction pipe; 16, second air extraction pipe; 17, sputum suction bag; 18, three-way valve; 181, sputum suction bag interface; 182, sputum suction bottle interface; 183, negative pressure interface; 19, arc tube; 20, horizontal tube. Specific embodiments

[0024] The present utility model will be further described in detail below in conjunction with the attached drawings and embodiments. The same parts are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the attached drawings, and the terms "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0025] Embodiment 1: Please refer to Figures 1-5 , the present utility model provides a technical solution: an alarm type negative pressure sputum suction device, including a sputum suction bottle 1 and a sputum suction bag 17 arranged inside the sputum suction bottle 1. The top of the sputum suction bottle 1 is detachably connected with a sealing cover 2. The sealing cover 2 is provided with a first connecting pipe 3 and a second connecting pipe 4 penetrating through it. The first connecting pipe 3 and the second connecting pipe 4 are communicated with the sputum suction bag 17. The top end of the first connecting pipe 3 is connected to one end of an air extraction pipe 5, the other end of the air extraction pipe 5 is connected to a negative pressure valve, the second connecting pipe 4 is connected to one end of a sputum suction pipe 6, the other end of the sputum suction pipe 6 is connected to a sputum suction head, and an alarm monitoring component 7 is arranged on one side of the sputum suction bottle 1. The air pressure inside the sputum suction bottle 1 (the inner cavity between the sputum suction bag 17 and the sputum suction bottle 1) is monitored and alarmed through the alarm monitoring component 7.

[0026] In this embodiment, the alarm monitoring component 7 includes a housing 8, on which there is an audible and visual alarm 9. Inside the housing 8, there are a controller 10 and a storage battery 11. Outside the housing 8, there are a display screen 12 and a charging port 13. On the top of the housing 8, there is a pressure sensor 14. The bottom end of the pressure sensor 14 extends out of the housing 8, and the top end of the pressure sensor 14 is connected to the controller 10. The sensing end of the pressure sensor 14 is located inside the sputum suction bottle 1 and outside the sputum suction bag 17. The controller 10, the display screen 12, the charging port 13, and the pressure sensor 14 are all electrically connected to the storage battery 11. The controller 10 is electrically connected to the display screen 12 and the pressure sensor 14. When the pressure sensor 14 detects the external pressure value of the sputum suction bag and converts the pressure value into an electrical signal and transmits it to the controller 10, if the pressure value is not within the corresponding pressure range, it will control the audible and visual alarm 9 (model WTLP-1203B, triggering the red LED to flash + the buzzer to sound intermittently) to start alarming.

[0027] In this embodiment, the bottom of the sealing cover 2 is connected with a sputum suction bag 17, which is convenient for disassembling and assembling the sputum suction bag 17. Both the sputum suction bag 17 and the sputum suction bottle 1 are transparent.

[0028] A three-way valve 18 is arranged on the outer side of the sputum suction bottle 1. The three-way valve 18 includes a sputum suction bag interface 181 (the main outlet of the three-way valve: the negative pressure directly acts on the inside of the sputum suction bag, sucking out the air inside the bag to form the target negative pressure), a sputum suction bottle interface 182 (the auxiliary passage of the three-way valve: does not actively apply negative pressure, but keeps the air pressure inside the bottle cavity balanced with the outside air pressure (through a vent hole or a filter) to prevent the sputum suction bag from being crushed by the atmospheric pressure), and a negative pressure interface 183 (directly connected to the hospital negative pressure valve, which is the source of the suction force). The sputum suction bottle interface 182 is communicated with the cavity of the sputum suction bottle 1 (not inside the sputum suction bag). The sputum suction bottle interface 182 is used to balance the air pressure inside the bottle, prevent the bag body from sticking, affect sputum collection, and at the same time avoid the sputum suction bag from being deformed by the bottle body, and also assist in monitoring the situation inside the bottle (such as being full of liquid).

[0029] The suction tube 5 includes a first suction tube 15 and a second suction tube 16. One end of the first suction tube 15 is connected to the sputum suction bag interface 181, and the other end of the first suction tube 15 is connected to the sputum suction bag 17. One end of the second suction tube 16 is connected to the negative pressure interface 183, and the other end of the second suction tube 16 is connected to the negative pressure valve.

[0030] The pressure sensor 14 is a piezoresistive sensor, which utilizes the characteristic that the resistance of a semiconductor (such as a silicon diaphragm) changes with pressure. When the air pressure inside the bottle changes, the diaphragm deforms, resulting in a change in the resistance value, which is converted into a voltage signal through a Wheatstone bridge. The model is: MPXV7007DP.

[0031] One side of the sputum suction bottle 1 is also provided with a protection tube, which includes an arc tube 19 and three horizontal tubes 20. The arc tube 19 is fixedly connected to one side of the sputum suction bottle 1 through the three horizontal tubes 20. The alarm monitoring component 7 is located above the three-way valve 18 and inside the arc tube 19 and the horizontal tube 20. The protection tube and the three-way valve 18 together play a protective role for the alarm monitoring component 7 to prevent the alarm monitoring component 7 from being damaged.

[0032] The negative pressure valve adopted by this device is the negative pressure terminal interface connected to the ward wall. After the valve is opened, the sputum suction bottle is connected to the central negative pressure system. The hospital negative pressure station (vacuum pump unit) provides continuous and stable negative pressure (usually -300 mmHg to -500 mmHg). The negative pressure is transported to the suction terminal interface of each ward through pipelines.

[0033] The sputum suction bag 17 of this device is a disposable soft bag, made of compressive plastic (such as PE or PVC), and is used to collect sputum; the bag mouth is connected to the sealing cover through a hard interface. The sputum suction bag is usually designed with a one-way valve or a floating valve to prevent sputum or gas from flowing back into the negative pressure pipeline (which is an existing technology and will not be described in detail here). The sputum suction bottle 1, as a container for fixing and protecting the sputum suction bag, is made of hard plastic or glass. The surface of the pressure sensor needs to be covered with a hydrophobic film (such as PTFE) to prevent sputum contamination.

[0034] The working principle of this utility model is as follows: When the negative pressure valve is started, the central negative pressure of the hospital continuously sucks the air in the sputum suction bag through the pipeline, so that the air pressure in the bag rapidly decreases (reaching the same negative pressure value as the system, such as -300 mmHg). When the disposable sputum suction tube 6 is inserted into the patient's airway, due to the negative pressure in the bag, the external atmospheric pressure will press the sputum into the sputum suction bag 17 through the sputum suction tube.

[0035] If the pressure in the bottle is too low (such as < -400 mmHg), it indicates that the ventilation hole is blocked or the central negative pressure is too strong, which may cause the sputum suction bag to rupture and trigger the sound and light alarm 9 to alarm. A sudden increase in the pressure in the bottle (such as > -50 mmHg) may indicate that the sputum has overflowed into the inner cavity of the bottle, posing a risk of contaminating the pipeline, and triggering the sound and light alarm 9 to alarm.

[0036] Embodiment 2: This device can be applied to nasal negative pressure sputum suction for chronic sinusitis, suppurative sinusitis, allergic rhinitis, upper respiratory tract infection, and nasal congestion and runny nose in children. For nasal negative pressure sputum suction in children, the operation process is as follows:

[0037] 1. Prepare a syringe filled with 10 ml of normal saline, a disposable sputum suction tube, and disposable latex gloves.

[0038] 2. Assist the child to take a supine position, place a soft pillow under the neck, tilt the head back, hang it over the edge of the bed, and the nostrils face upwards.

[0039] 3. The operator connects the disposable sputum suction tube 6 to the second connecting tube 4 at the top of the sputum suction bottle 1, and places the sputum suction head of the sputum suction tube 6 in the nasal cavity of the child.

[0040] 4. The operator drops physiological saline into one side of the child's nasal cavity with a syringe that has already drawn 10 ml of physiological saline, and at the same time activates the negative pressure valve. The disposable sputum suction tube sucks out from the opposite nasal cavity, with the pressure being -0.02 to -0.04 MPa (-150 to -300 mmHg).

[0041] 5. Clean the opposite side in the same way, and repeat this process until there is no secretion.

[0042] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An alarm type negative pressure sputum suction device, comprising a sputum suction bottle (1), characterized in that: The top of the sputum suction bottle (1) is detachably connected to a sealing cover (2), a first connecting tube (3) and a second connecting tube (4) are provided through the sealing cover (2), the top end of the first connecting tube (3) is connected to one end of an air suction tube (5), the other end of the air suction tube (5) is connected to a negative pressure valve, the second connecting tube (4) is connected to one end of a sputum suction tube (6), the other end of the sputum suction tube (6) is connected to a sputum suction head, and an alarm monitoring component (7) is provided on one side of the sputum suction bottle (1); A three-way valve (18) is arranged on the outside of the sputum suction bottle (1), the three-way valve (18) comprising a sputum suction bag interface (181), a sputum suction bottle interface (182) and a negative pressure interface (183), the sputum suction bottle interface (182) being in communication with the cavity of the sputum suction bottle (1); A protective tube is also provided on one side of the sputum suction bottle (1), the protective tube comprising an arc-shaped tube (19) and three transverse tubes (20), the arc-shaped tube (19) being fixedly connected to one side of the sputum suction bottle (1) via the three transverse tubes (20), the alarm monitoring component (7) being located above the three-way valve (18) and inside the arc-shaped tube (19) and the transverse tubes (20), and the alarm monitoring component (7) is protected by the protective tube and the three-way valve (18).

2. The alarm type negative pressure sputum suction device according to claim 1, characterized in that: The alarm monitoring component (7) comprises a shell (8), on which an audible and visual alarm (9) is provided, a controller (10) and a battery (11) are provided inside the shell (8), a display screen (12) and a charging port (13) are provided outside the shell (8), a pressure sensor (14) is provided on the top of the shell (8), the bottom end of the pressure sensor (14) extends out of the shell (8), the top end of the pressure sensor (14) is connected to the controller (10), and the sensing end of the pressure sensor (14) is located in the sputum suction bottle (1); the audible and visual alarm (9), the controller (10), the display screen (12), the charging port (13) and the pressure sensor (14) are all electrically connected to the battery (11), and the controller (10) is electrically connected to the audible and visual alarm (9), the display screen (12) and the pressure sensor (14).

3. The alarm type negative pressure sputum suction device according to claim 2, characterized in that: A sputum suction bag (17) is detachably provided at the bottom of the sealing cover (2), and the first connecting tube (3) and the second connecting tube (4) are connected to the sputum suction bag (17).

4. The alarm type negative pressure sputum suction device according to claim 3, characterized in that: The sputum suction bag (17) is transparent.

5. The alarm type negative pressure sputum suction device according to claim 4, characterized in that: The suction pipe (5) comprises a first suction pipe (15) and a second suction pipe (16); one end of the first suction pipe (15) is connected to the sputum suction bag interface (181), and the other end of the first suction pipe (15) is connected to the sputum suction bag (17); one end of the second suction pipe (16) is connected to the negative pressure interface (183), and the other end of the second suction pipe (16) is connected to the negative pressure valve.

6. The alarm type negative pressure sputum suction device according to claim 5, characterized in that: The pressure sensor (14) is a piezoresistive sensor.

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