Full-automatic negative pressure aspirator

Abstract

The utility model discloses a full-automatic negative pressure aspirator which comprises a drainage tank body and a control box body, and the drainage tank body is installed on the control box body in a separable mode. An air exhaust nozzle is arranged on a tank cover of the drainage tank body and is connected with a negative pressure generation interface of the control box body through a hose; a suction nozzle is further arranged on the tank cover; a main controller, an air pressure sensor and a micro negative pressure pump are arranged in the control box body; an electronic screen is further arranged on the control box body, and the electronic screen, the air pressure sensor and the miniature negative pressure pump are all connected with the main controller; and a water immersion sensor is arranged on a tank cover of the drainage tank body and is connected with a main controller in the control box body through a pluggable cable. According to the utility model, the negative pressure value display is more accurate, visual and real-time; in addition, the main controller can control the miniature negative pressure pump according to negative pressure data collected by the air pressure sensor and a set working negative pressure threshold value, and the drainage tank body can be continuously kept at the set working negative pressure threshold value.

Description

Technical Field

[0001] This utility model relates to medical negative pressure aspirators, and in particular to a fully automatic negative pressure aspirator. Background Technology

[0002] Negative pressure suction devices work on the principle of vacuum operation. A negative pressure generator produces negative pressure, which is then transmitted to the target location on the human body through a flexible tube. This creates negative pressure within the body's cavities, thereby guiding the liquid inside the cavities and performing its function of draining and purifying.

[0003] Existing negative pressure aspirator technology typically uses mechanical pressure gauges to display negative pressure, which is not accurate enough and lacks real-time performance.

[0004] Existing negative pressure suction technology often only provides short-term negative pressure suction, making it difficult to maintain continuous suction for a long time according to the set negative pressure.

[0005] Existing negative pressure aspirator technologies (e.g., patents CN216985852U, CN202605513U, and CN217772865U) are all one-piece structures, meaning the canister and negative pressure control system are integrated. These one-piece negative pressure aspirators are disposable; after a single use, the entire device must be discarded and disposed of as medical waste, resulting in significant resource waste. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fully automatic negative pressure suction device.

[0007] This utility model is achieved through the following technical solution:

[0008] A fully automatic negative pressure suction device includes a drainage tank and a control box, wherein the drainage tank is detachably mounted on the control box;

[0009] An air extraction nozzle is installed on the lid of the drainage tank, which is connected to the negative pressure generating interface of the control box via an air extraction connecting hose; an air suction nozzle is also installed on the lid, which is used to connect to the suction hose.

[0010] The control box contains a main controller, a pressure sensor, and a miniature negative pressure pump. The suction port of the miniature negative pressure pump is connected to the negative pressure generating interface on the control box via a suction pipe. The pressure sensor is connected to the suction pipe of the miniature negative pressure pump via a T-connector.

[0011] An electronic screen is also installed on the control box. The electronic screen, as well as the aforementioned air pressure sensor and miniature negative pressure pump, are all connected to the main controller.

[0012] A water immersion sensor is also installed on the lid of the drainage tank, which is connected to the main controller inside the control box via a pluggable cable.

[0013] In the above technical solution, the drainage tank includes a tank body, which includes a tank body and a tank cover; the tank cover is provided with a buckle, and the tank cover is connected to the tank body through the buckle; or, the tank body and the tank cover are connected by threads.

[0014] In the above technical solution, a base for placing the drainage tank is provided on one side of the bottom of the control box. The base is an integral structure with the control box or an assemblable structure.

[0015] In the above technical solution, a main power switch is also installed on the control box.

[0016] In the above technical solution, a ring is provided at the bottom of the can lid, and a sealing ring is provided on the outer wall of the ring. When the can body and the can lid are combined, the sealing ring is sealed with the inner wall of the upper part of the can body.

[0017] In the above technical solution, a filter is installed on the air extraction connection hose.

[0018] In the above technical solution, there can be multiple miniature negative pressure pumps. During operation, the main controller controls these miniature negative pressure pumps to work in turn, which can effectively prevent a single miniature negative pressure pump from overheating due to long-term operation and effectively extend the service life of the fully automatic negative pressure suction device.

[0019] In the above technical solution, the exhaust port of the micro negative pressure pump is connected to an exhaust pipe, and a flared end is connected to the end of the exhaust pipe. The flared end is aligned with the heat dissipation holes on the wall of the control box. In this way, the exhaust of the micro negative pressure pump can promote the discharge of heat generated inside the control box during operation.

[0020] In the above technical solution, a battery power supply module is installed inside the control box.

[0021] In the above technical solution, the electronic screen is a touch screen, which includes: an information display bar, a pause button, a first negative pressure threshold selection button, a second negative pressure threshold selection button, a third negative pressure threshold selection button, a negative pressure value increase fine-tuning button, and a negative pressure value decrease fine-tuning button.

[0022] The advantages and beneficial effects of this utility model are as follows:

[0023] This utility model's negative pressure suction device comprises two parts: a drainage tank and a control box. The drainage tank is detachably mounted on the control box. The drainage tank is a disposable item; after each use, it is replaced with a new one. The control box, however, can be reused long-term, thus avoiding excessive resource waste compared to existing integrated negative pressure suction devices.

[0024] This utility model's negative pressure suction device has a high degree of automation. During operation, it collects negative pressure data in the drainage tank in real time through a pressure sensor, transmits it to the main controller, and displays the negative pressure value on an electronic screen. Compared with the traditional mechanical pressure gauge for displaying negative pressure, this utility model's negative pressure value display is more accurate, more intuitive, and more real-time. In addition, the main controller controls the micro negative pressure pump based on the real-time collected negative pressure data and the set working negative pressure threshold, which can maintain the drainage tank at the set working negative pressure threshold, thereby enabling long-term continuous suction operation according to the set negative pressure threshold.

[0025] The negative pressure suction device of this invention is equipped with a water immersion sensor on the lid of the drainage tank. The water immersion sensor is connected to the main controller in the control box through a pluggable cable. When the liquid in the drainage tank comes into contact with the probe at the bottom of the water immersion sensor, the water immersion sensor generates an electrical signal and sends it to the main controller. Then the main controller immediately controls the micro negative pressure pump to stop, and the main controller displays the information that the liquid in the drainage tank is too high on the electronic screen.

[0026] The exhaust port of the miniature negative pressure pump of this invention is connected to an exhaust pipe, and a flared end is connected to the end of the exhaust pipe. The flared end is aligned with the heat dissipation holes on the wall of the control box. In this way, the exhaust of the miniature negative pressure pump can promote the discharge of heat generated inside the control box during operation.

[0027] This invention features a touchscreen on the control box, with various virtual buttons that allow for easy setting of different working negative pressure thresholds. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the drainage tank in this utility model.

[0030] Figure 3 This is a schematic diagram of the internal structure of the control box in this utility model.

[0031] Figure 4 This is a schematic diagram of the control box and base structure in this utility model (before assembly).

[0032] Figure 5This is a schematic diagram of the control box and base structure (after assembly) in this utility model.

[0033] Figure 6 This is a top view of the base in this utility model.

[0034] Figure 7 This is a schematic diagram of the touch screen display content of this utility model.

[0035] For those skilled in the art, other related figures can be obtained from the above figures without any creative effort. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to specific embodiments.

[0037] Example 1

[0038] A fully automatic negative pressure suction device includes two parts: a drainage tank 1 and a control box 2. The drainage tank 1 is detachably mounted on the control box 2. The specific structure and function of this utility model are described in detail below with reference to the accompanying drawings.

[0039] The drainage tank 1 includes a tank body, preferably comprising a tank body 11 and a tank cover 12. The tank cover 12 is provided with a buckle 13, and the tank cover 12 is connected to the tank body 11 through the buckle 13; or the tank body 11 and the tank cover 12 can also be connected by threads (i.e., the tank cover 12 is provided with external threads, and the upper end of the tank body 11 is provided with internal threads, and the two are threadedly connected); the tank cover 12 is provided with a suction nozzle 14, which is connected to the negative pressure generating interface 21 of the control box 2 through a suction connecting hose 15, thereby transmitting negative pressure to the inside of the drainage tank 1; the tank cover 12 is also provided with a suction nozzle 16, which is used to connect to a suction hose. In use, the suction hose is extended to the target part of the human body for drainage.

[0040] The control box 2 is equipped with a main controller 22, a pressure sensor 23, and a miniature negative pressure pump 24. The suction port of the miniature negative pressure pump 24 is connected to the negative pressure generating interface 21 on the control box 2 via a suction pipe 241, thereby transmitting negative pressure to the negative pressure generating interface 21, and then to the drainage tank 1 via the suction connecting hose 15 and the suction nozzle 14. The exhaust port of the miniature negative pressure pump 24 is connected to an exhaust pipe 242. Preferably, a flared end 243 is connected to the end of the exhaust pipe 242, which is aligned with the heat dissipation hole 26 on the wall of the control box 2. In this way, the exhaust of the miniature negative pressure pump 24 can promote the heat generated inside the control box 2 during operation to be discharged from the box. The pressure sensor 23 is connected to the suction pipe 241 of the suction port of the miniature negative pressure pump 24 via a three-way connector 231, so that the pressure sensor 23 can detect the magnitude of the negative pressure generated by the miniature negative pressure pump 24 in real time (i.e., detect the magnitude of the negative pressure inside the drainage tank 1).

[0041] An electronic screen 28 is also installed on the control box 2. The electronic screen, as well as the aforementioned air pressure sensor 23 and miniature negative pressure pump 24, are all connected to the main controller 22. During operation, the air pressure sensor 23 collects negative pressure data in the drainage tank 1 in real time and transmits it to the main controller 22, and displays the negative pressure value on the electronic screen 28. In addition, the main controller 22 performs PID control on the miniature negative pressure pump 24 based on the real-time collected negative pressure data and the set working negative pressure threshold, so that the drainage tank 1 is maintained at the set working negative pressure threshold.

[0042] The control box 2 is also equipped with a battery power supply module 25, which is used to supply power to electrical components such as the main controller 22, air pressure sensor 23, micro negative pressure pump 24 and electronic screen 28.

[0043] Furthermore, a water immersion sensor 17 is installed on the lid 12 of the drainage tank 1. This water immersion sensor 17 is connected to the main controller 22 inside the control box 2 via a pluggable cable 18. Specifically, the cable 18 is installed on the top of the control box 2, with one end connected to the main controller 22 and the other end having a plug 181. The plug 181 can be plugged into the top of the water immersion sensor 17. The water immersion sensor 17 is used to determine whether the liquid in the drainage tank exceeds the warning height. That is, when the liquid in the drainage tank touches the probe at the bottom of the water immersion sensor 17, the water immersion sensor 17 generates an electrical signal and sends it to the main controller 22. The main controller 22 then immediately controls the micro negative pressure pump 24 to stop, and the main controller 22 displays a message on the electronic screen 28 indicating that the liquid level in the drainage tank is too high.

[0044] Preferably, a base 3 for placing the drainage tank 1 is provided on one side of the bottom of the control box 2. The base can be an integral structure with the control box 2 or an assemblable structure. Referring to the attached drawings, a hook 31 is provided on the side of the base 3, and correspondingly, a hanging hole 231 is provided on the wall of the control box 2. During assembly, the hook 31 is inserted into the hanging hole 231 to connect the base 3 to the control box 2.

[0045] Preferably, a main power switch 27 is also provided on the control box 2. The main power switch 27 is connected to the output terminal of the battery power supply module 25 and serves as the control of the main power supply.

[0046] Preferably, as shown in the attached figure, the bottom of the can lid 12 is provided with a ring opening 121, and a sealing ring 122 is provided on the outer wall of the ring opening. When the can body and the can lid are combined, the sealing ring is sealed with the inner wall of the upper opening of the can body.

[0047] Preferably, there are two buckles 13, which are symmetrically arranged on the can lid 12.

[0048] Preferably, a filter 151 is provided on the air extraction connection hose 15.

[0049] Preferably, a handle 29 is provided on the control box 2.

[0050] Preferably, the drainage tank is a disposable item, and a new drainage tank is replaced after each use. The control box, on the other hand, can be used repeatedly for a long period of time.

[0051] Example 2

[0052] Based on Embodiment 1, furthermore, the electronic screen 28 is preferably a touch screen, and the touch screen preferably includes the following (all buttons below are virtual buttons):

[0053] Information display bar 281 is used to display information such as negative pressure value, power consumption, immersion status, and working status.

[0054] Pause button 282 is used to pause the operation of micro negative pressure pump 24.

[0055] The first negative pressure threshold selection button 283, the second negative pressure threshold selection button 284, and the third negative pressure threshold selection button 285 are used to set different levels of working negative pressure thresholds, such as "weak", "medium", and "strong".

[0056] The negative pressure value increase fine-tuning button 286 and the negative pressure value decrease fine-tuning button 287, after selecting the first negative pressure threshold selection button / the second negative pressure threshold selection button / the third negative pressure threshold selection button, can be used to further adjust the size of the set working negative pressure threshold by operating these buttons.

[0057] Example 3

[0058] Based on Embodiment 1, furthermore, the number of miniature negative pressure pumps 24 can be multiple, preferably four. The suction port of each miniature negative pressure pump 24 is connected to the suction pipe 241, and the exhaust port of each miniature negative pressure pump 24 is connected to the exhaust pipe 242. That is, the multiple miniature negative pressure pumps 24 are connected in parallel between the suction pipe 241 and the exhaust pipe 242. During operation, the main controller controls these miniature negative pressure pumps to work in turn, thereby effectively avoiding overheating caused by a single miniature negative pressure pump working for a long time and effectively extending the service life of the fully automatic negative pressure suction device.

[0059] The present invention has been described above by way of example. It should be noted that, without departing from the core of the present invention, any simple modifications, alterations or other equivalent substitutions that can be made by those skilled in the art without creative effort fall within the protection scope of the present invention.

Claims

1. A fully automatic negative pressure aspirator, characterized by: It includes a drainage tank and a control box, with the drainage tank being detachably mounted on the control box; An air extraction nozzle is installed on the lid of the drainage tank, which is connected to the negative pressure generating interface of the control box via an air extraction connecting hose; an air suction nozzle is also installed on the lid, which is used to connect to the suction hose. The control box contains a main controller, a pressure sensor, and a miniature negative pressure pump. The suction port of the miniature negative pressure pump is connected to the negative pressure generating interface on the control box via a suction pipe. The pressure sensor is connected to the suction pipe of the miniature negative pressure pump via a T-connector. An electronic screen is also installed on the control box. The electronic screen, as well as the aforementioned air pressure sensor and miniature negative pressure pump, are all connected to the main controller. A water immersion sensor is also installed on the lid of the drainage tank, which is connected to the main controller inside the control box via a pluggable cable.

2. The fully automatic negative pressure suction device according to claim 1, characterized in that: The drainage tank includes a tank body, which consists of a tank body and a tank lid. The tank lid is provided with a buckle, and the tank lid is connected to the tank body through the buckle; or, the tank body and the tank lid are connected by threads.

3. The fully automatic negative pressure suction device according to claim 1, characterized in that: A base for placing the drainage tank is provided on one side of the bottom of the control box. The base is either an integral structure with the control box or an assemblable structure.

4. The fully automatic negative pressure suction device according to claim 1, characterized in that: A main power switch is also installed on the control box.

5. The fully automatic negative pressure suction device according to claim 1, characterized in that: The bottom of the can lid has a ring opening, and a sealing ring is installed on the outer wall of the ring opening. When the can body and the can lid are combined, the sealing ring is sealed to the inner wall of the upper part of the can body.

6. The fully automatic negative pressure suction device according to claim 1, characterized in that: A filter is installed on the air extraction connection hose.

7. The fully automatic negative pressure suction device according to claim 1, characterized in that: There are multiple miniature negative pressure pumps.

8. The fully automatic negative pressure suction device according to claim 1, characterized in that: The exhaust port of the miniature negative pressure pump is connected to an exhaust pipe, and a flared end is connected to the end of the exhaust pipe. The flared end is aligned with the heat dissipation holes on the wall of the control box. In this way, the exhaust of the miniature negative pressure pump can help to expel the heat generated inside the control box during operation.

9. The fully automatic negative pressure suction device according to claim 1, characterized in that: A battery-powered module is installed inside the control box.

10. A fully automatic negative pressure suction device according to claim 1, characterized in that: The electronic screen is a touch screen, which includes: an information display bar, a pause button, a first negative pressure threshold selection button, a second negative pressure threshold selection button, a third negative pressure threshold selection button, a negative pressure value increase fine-tuning button, and a negative pressure value decrease fine-tuning button.

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