Portable electric negative pressure aspirator, control system and use method

Abstract

The invention relates to the technical field of medical equipment, in particular to a portable electric negative pressure aspirator, a control system and a use method. The portable electric negative pressure aspirator comprises an equipment body which is provided with a containing cavity and provided with a connecting port communicated with the containing cavity, and the upper portion of the containing cavity is provided with a putting-in opening; the storage bag comprises a bag body and a cover body for sealing the bag body, the cover body is provided with a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe both penetrate through the cover body, the bag body is contained in the containing cavity, and the cover body is detachably buckled and covered on the putting-in opening; and the negative pressure pump is arranged on the equipment body, an air suction port of the negative pressure pump is connected with the connecting port through a first pipeline so that the containing cavity can be in a negative pressure state, and the air suction port of the negative pressure pump is connected with the first connecting pipe through a second pipeline so that the containing bag can be in a negative pressure state. The problem that a traditional negative pressure sputum suction device is difficult to meet the use requirements of out-of-hospital emergency treatment, home nursing or resource limited areas is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a portable electric negative pressure aspirator, a control system and a use method. BACKGROUND

[0002] As a basic and important technical means in modern medical practice, negative pressure sputum suction technology is commonly used in intensive care clinical scenarios to suction sputum and other secretions in the patient's mouth or airway.

[0003] Traditional negative pressure sputum suction devices usually rely on fixed central negative pressure devices connected to each ward or operating room through a pipeline network. Although they can provide a stable negative pressure source, they have limitations such as large equipment, inconvenience of movement, and dependence on infrastructure, making it difficult to meet the needs of out-of-hospital emergency care, home nursing, or resource-limited areas.

[0004] To meet the suction needs in mobile medical and instant care scenarios, the present application proposes a portable electric negative pressure aspirator. SUMMARY

[0005] The purpose of the present application is to provide a portable electric negative pressure aspirator, a control system and a use method, which solves the problem that traditional negative pressure sputum suction devices cannot meet the needs of out-of-hospital emergency care, home nursing or resource-limited areas.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions: On the one hand, the present application provides a portable electric negative pressure aspirator, comprising: a device main body provided with a containing chamber, and a connection interface in communication with the containing chamber, and a placing opening provided at the upper part of the containing chamber; a storage bag comprising a bag body and a cover body closing the bag body, the cover body being provided with a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe both penetrating the cover body, the bag body being contained in the containing chamber, and the cover body being detachably buckled on the placing opening; a negative pressure pump provided on the device main body, the suction port of the negative pressure pump being connected to the connection interface through a first pipeline for placing the containing chamber in a negative pressure state, and the suction port of the negative pressure pump being connected to the first connecting pipe through a second pipeline for placing the storage bag in a negative pressure state.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the main body of the equipment includes: a base; a supporting body, the upper part of which is a first supporting body, a second supporting body is provided on the first supporting body, the second supporting body extends downward around the outside of the first supporting body to form an installation space, and the second supporting body is detachably connected to the base; an installation body, which is fixedly disposed on the first supporting body, the installation body protruding upward from the first supporting column to form the receiving chamber, the top opening of the receiving chamber being the insertion inlet; and a negative pressure pump disposed within the installation space.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the upper end of the connection interface extends upward from the lower side of the first support body to the bottom of the receiving chamber; the upper end of the connection interface is an open opening that is not closed, and vents are arranged around the periphery of the opening.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme, it also includes a rechargeable battery module for power supply.

[0010] Based on the above solution and as a preferred embodiment of the above solution: the first connecting tube and the second connecting tube extend through the cover and toward the side where the bag is located, and the extension length of the first connecting tube is less than the extension length of the second connecting tube.

[0011] Based on the above solution and as a preferred embodiment of the above solution: a swingable connector is provided on one side of the main body of the device, and a latch is provided on the other side. The connector can swing toward the connector to press the cover under the connector. The latch is used to detachably connect the connector so that the connector maintains the tendency to press the cover.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the main body of the equipment is provided with a hook device.

[0013] On the other hand, based on the same technical concept of this application, this application also provides a control system applied to the portable electric negative pressure suction device described above. The control system includes: a first pressure sensor disposed on the first pipeline for detecting the negative pressure value of the first pipeline; a second pressure sensor disposed on the second pipeline for detecting the negative pressure value of the second pipeline; a negative pressure pump controller disposed on the main body of the device and connected to the negative pressure pump for controlling the negative pressure pump; a human-machine interface device disposed outside the main body of the device; and a main controller disposed on the main body of the device and connected to the first pressure sensor, the second pressure sensor, the negative pressure pump controller, and the human-machine interface device.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: the control system further includes a proportional valve, which is disposed on the first pipeline for adjusting the negative pressure value of the first pipeline.

[0015] On the other hand, based on the same technical concept of this application, this application also provides a method of using a portable electric negative pressure suction device, based on the control system described above, the control system further includes a switch valve disposed on the second pipeline; The method of use includes: The main controller controls the switch valve to be in the closed state, and then controls the negative pressure pump controller to drive the negative pressure pump to work; The main controller is set with a first preset value for the normal working negative pressure of the first pipeline. The negative pressure value detected by the first pressure sensor is read in real time by the main controller and recorded as the first negative pressure value. When the first negative pressure value reaches the first preset value, the switch valve is opened. The main controller is set with a second preset value for the normal working negative pressure of the second pipeline. The negative pressure value detected by the second pressure sensor is read in real time by the main controller and recorded as the second negative pressure value. When the second negative pressure value reaches the second preset value, the suctioning operation can begin.

[0016] To address the issue that traditional negative pressure suction devices are insufficient to meet the needs of outpatient care, home care, or resource-limited areas, this application offers the following advantages: The portable electric negative pressure suction device of this application integrates a negative pressure pump into the main body of the device. The negative pressure pump provides a negative pressure source for suctioning sputum. At the same time, the main body of the device, the storage bag, and the negative pressure pump are integrated into a movable whole, which makes the portable electric negative pressure suction device highly flexible in use. It can be used in out-of-hospital emergency care, home care, or resource-limited areas, meeting the suction needs in general mobile medical and immediate care scenarios.

[0017] In practical use, this portable electric negative pressure suction device can be placed next to the patient, such as on the side of the hospital bed, and a suction tube can be set on the second connecting tube. This suction tube is mainly used to extend and connect to the sputum point in the patient's mouth or airway. Then, the negative pressure pump works to provide negative pressure, and the sputum is suctioned into the collection bag for collection through negative pressure.

[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. These will be further described in detail below with reference to figures. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the portable electric negative pressure suction device of this application; Figure 2 This is a schematic diagram of the portable electric negative pressure suction device of this application from another perspective. Figure 3 A schematic diagram of the portable electric negative pressure suction device after the main body of the device in this application has been cut out; Figure 4 for Figure 3 Enlarged view of part A; Figure 5 This is an exploded view of the second support body and the base assembly of this application; Figure 6 This is an exploded view of the assembly of the storage bag (the bag body is partially cut out) and the main body of the equipment in this application. Figure 7 This is a block diagram of the control system structure of this application.

[0021] Explanation of reference numerals in the attached figures: 100. Equipment body; 101. Support body; 102. First support body; 103. Second support body; 104. Installation space; 105. Installation body; 106. Receiving chamber; 107. Inlet / outlet; 108. Connection interface; 109. Opening; 110. Vent; 111. Base; 112. Mounting component; 113. Connecting component; 114. Lock; 115. Hook device; 116. Battery compartment; 200. Storage bag; 201. Lid; 202. First connecting tube; 203. Second connecting tube; 204. Bag body; 300. Negative pressure pump; 301. First pipeline; 302. Second pipeline; 400. Control system; 401. First pressure sensor; 402. Second pressure sensor; 403. Negative pressure pump controller; 404. Main controller; 405. Human-machine interface device; 406. Display; 407. Button device; 408. Pressure regulating knob; 409. Voice broadcaster; 410. Proportional valve; 411. Switch valve; 500, Filter; 600. Battery module. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0023] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0024] Traditional negative pressure suction devices typically rely on a fixed central negative pressure unit, which is connected to each ward or operating room through a pipeline network. Although it can provide a stable negative pressure source, it has limitations such as large size, inconvenience in movement, and dependence on infrastructure, making it difficult to meet the needs of outpatient care, home care, or areas with limited resources.

[0025] See Figures 1-7 This application discloses a portable electric negative pressure suction device, a control system 400, and a method of use.

[0026] Firstly, such as Figures 1-6 As shown, this application discloses a portable electric negative pressure suction device.

[0027] In this embodiment, the portable electric negative pressure suction device includes a device body 100, a storage bag 200, and a negative pressure pump 300. Specifically, the device body 100 is provided with a receiving chamber 106 and a connecting interface 108 communicating with the receiving chamber 106. An insertion inlet 107 is provided at the upper part of the receiving chamber 106. The storage bag 200 includes a bag body 204 and a cover 201 that closes the bag body 204. A first connecting pipe 202 and a second connecting pipe 203 are provided on the cover 201, both penetrating the cover 201. 4. It is housed in the housing chamber 106 and the cover 201 is detachably fastened to the inlet 107; a negative pressure pump 300 is installed on the main body 100 of the equipment. The suction port of the negative pressure pump 300 is connected to the connection interface 108 through the first pipe 301 to keep the housing chamber 106 under negative pressure. The suction port of the negative pressure pump 300 is connected to the first connection pipe 202 through the second pipe 302 to keep the storage bag 200 under negative pressure.

[0028] The portable electric negative pressure suction device of this application integrates a negative pressure pump 300 into the main body 100 of the device. The negative pressure pump 300 provides a negative pressure source for negative pressure suction. At the same time, the main body 100, the storage bag 200, and the negative pressure pump 300 are integrated into a movable whole, which makes the portable electric negative pressure suction device highly flexible in use. It can be used in out-of-hospital emergency care, home care, or resource-limited areas, meeting the suction needs in general mobile medical and immediate care scenarios.

[0029] In practical use, this portable electric negative pressure suction device can be placed next to the patient, such as on the side of the hospital bed, and a suction tube is set on the second connecting tube 203. This suction tube is mainly used to extend and connect to the sputum point in the patient's mouth or airway. Then, the negative pressure pump 300 works to provide negative pressure, and the sputum is suctioned into the collection bag 200 for collection through negative pressure.

[0030] To facilitate the use of this portable electric negative pressure suction device in mobile medical settings, a hook device 115 is provided on the main body 100. This allows the device to be directly hung on the hospital bed during setup, enabling it to be moved and used with the bed.

[0031] The connection between the storage bag 200 and the main body of the device 100 is detachable. After use, the storage bag 200 can be removed and disposed of promptly, effectively preventing cross-infection. Compared to some existing technologies where sputum containers are often fixed, this device is more cost-effective, and the storage bag 200 is more convenient to use, as it can be disposed of directly as medical waste, avoiding the risk of cross-infection from recycling and disinfection.

[0032] The cap 201 generally has a certain structural stability and is typically a plastic cap with a certain degree of rigidity. The bag 204 is flexible and is typically a soft, transparent plastic bag. The cap 201 and the bag 204 are fixedly connected at their openings to form a space capable of accommodating inhaled sputum (or other liquids). After the cap 201 is placed on the insertion port 107, the cap 201 and the bag 204 together seal the accommodating chamber 106. Therefore, after the negative pressure pump 300 provides negative pressure, the negative pressure can be connected to the accommodating chamber 106 through the first pipe 301 to provide negative pressure to the accommodating chamber 106. The negative pressure in the accommodating chamber 106 acts on the bag 204, causing the bag 204 to expand outwards from the accommodating chamber 106, thus providing the bag 204 with sufficient space to accommodate the sputum.

[0033] Generally, such as Figure 6 As shown, there is a gap between the first connecting tube 202 and the second connecting tube 203, and the first connecting tube 202 and the second connecting tube 203 are disconnected. During suctioning, the negative pressure pump 300 operates to generate negative pressure, which is transmitted to the collection bag 200 through the second tube 302, and further forms a negative pressure in the suction tube for suctioning. After suctioning, the sputum can be guided through the suction tube and enter the collection bag 200 for collection. Because there is a gap between the first connecting tube 202 and the second connecting tube 203 inside the collection bag 200, sputum is prevented from entering the second connecting tube 203 and contaminating the second tube 302.

[0034] In this embodiment, the first connecting tube 202 and the second connecting tube 203 extend through the cover 201 towards the side where the bag body 204 is located, and the extension length of the first connecting tube 202 is less than the extension length of the second connecting tube 203. Since both the first connecting tube 202 and the second connecting tube 203 are in a nearly vertical state during use, the shorter extension length of the first connecting tube 202 means that the end of the second connecting tube 203 inside the storage bag 200 is lower than the end of the first connecting tube 202 inside the storage bag 200. After sputum enters the storage bag 200, it usually falls naturally into the storage bag 200 due to gravity for collection. Therefore, the advantage of the second connecting tube 203 being lower than the first connecting tube 202 inside the storage bag 200 is that it fully ensures that, under normal use, sputum in the storage bag 200 will not touch or enter the second connecting tube 203.

[0035] Furthermore, such as Figure 1As shown, to prevent abnormal situations from causing sputum to enter the second pipeline 302 and affect the negative pressure pump 300, a filter 500 that only allows gas to pass through can be installed on the second pipeline 302.

[0036] In this embodiment of the disclosure, the stability of the overall structure of the portable electric negative pressure suction device and the ease of assembly during manufacturing are taken into consideration, such as... Figure 1 As shown, the main body 100 of the device includes a base 111, a support body 101, and a mounting body 105. The base 111 is mainly used for mounting support; for example, a negative pressure pump 300 with a certain weight that will vibrate during operation can be directly mounted on the base 111. The support body 101 is mainly used for mounting support of the integrated structure. The upper part of the support body 101 is a first support body 102, and a second support body 103 is provided on the first support body 102. The first support body 102 and the second support body 103 are usually integrated. The second support body 103 extends downward around the outside of the first support body 102 to form a mounting space 104. The second support body 103 is detachably connected to the base 111, enclosing the negative pressure pump 300 within the mounting space 104, thus making the device compact and aesthetically pleasing. The second support body 103 encloses and protects the negative pressure pump 300, while also preventing the irregular structure of the negative pressure pump 300 from interfering with surrounding objects during use. The detachable connection between the second support 103 and the base 111 facilitates production and assembly, reduces manufacturing difficulty, and lowers maintenance costs. The mounting body 105 is fixedly mounted on the first support 102, protruding upwards from the first support column to form a receiving chamber 106. The top opening of the receiving chamber 106 is an inlet 107. In other words, the first support 102, the second support 103, and the mounting body 105 are integrated, collectively forming the main body 100 of the equipment. This results in high structural stability, a clean appearance, and ease of assembly.

[0037] In this embodiment, considering that the portable electric negative pressure suction device may require an external power source during use, such as mains power or an external mobile power source, there may be some inconvenience in its use. Therefore, the portable electric negative pressure suction device also includes a rechargeable battery module 600 for power supply. Generally, the battery module 600 can be disposed within the receiving chamber 106.

[0038] However, considering the need to ensure the sustainability of use, and to ensure sufficient power to guarantee stable operation when needed, such as when it is needed to be used while traveling in the vehicle, the battery module 600 usually has a fairly large footprint.

[0039] Therefore, in some implementations, such as Figure 5As shown, a downward-opening battery compartment 116 is provided on the lower side of the base 111, and the battery module 600 is then placed inside the battery compartment 116. The advantages of placing the battery compartment 116 on the base 111 are twofold: firstly, it allows for a more reasonable space arrangement, making the integration more compact; secondly, since the battery module 600 also has a certain weight, it can lower the overall center of gravity of this portable electric negative pressure suction device, resulting in greater stability during use.

[0040] In the embodiments of this disclosure, such as Figure 3 and Figure 4 As shown, the upper end of the connection interface 108 extends upward from the lower side of the first support 102 to the bottom of the receiving chamber 106; the upper end of the connection interface 108 is an open opening 109, and vents 110 are arranged around the opening 109. Firstly, by placing the connection interface 108 at the bottom of the receiving chamber 106, compared to simply placing it on the side of the receiving chamber 106, the difficulty of the bag 204 contacting and blocking the connection interface 108 before it is fully opened during the opening process is reduced. Secondly, by arranging vents 110 around the opening 109, the direct contact of the bag 204 with the connection interface 108 and preventing it from blocking the connection interface 108 is avoided, thus ensuring the effective opening of the bag 204 within the receiving chamber 106.

[0041] In this embodiment of the disclosure, to meet the requirement of detachable use between the storage bag 200 and the device body 100, such as... Figures 1-2 The device body 100 has a swingable connector 113 on one side and a latch 114 on the other side. The connector 113 can swing towards the connector 113 to press the cover 201 under the connector 113. The latch 114 is used to detachably connect the connector 113 so that the connector 113 maintains the tendency to press the cover 201.

[0042] Furthermore, such as Figures 1-2As shown, a mounting component 112 can be provided on the mounting body 105. Since the main body 100 is typically a one-piece molded plastic part or plastic assembly to reduce the overall weight of this portable electric negative pressure suction device, directly mounting the connector 113 onto the mounting body 105 or other parts would require additional design features, increasing the manufacturing difficulty and cost of the main body 100. For example, too many design features would increase mold complexity and affect the production cycle during molding. Therefore, a simple mounting component 112 is chosen to be provided on the mounting body 105. The mounting component 112 is an easily machinable metal part, and then the connector 113, latch 114, etc., or even the aforementioned hook device 115, are provided on the mounting component 112. Thus, the storage bag 200 is detachably secured to the mounting body 105 by the connector 113 and latch 114.

[0043] Secondly, such as Figure 3 and Figure 7 As shown, this application discloses a control system 400.

[0044] This control system 400 is applied to the portable electric negative pressure suction device described above. Specifically, the control system 400 includes a first pressure sensor 401, a second pressure sensor 402, a negative pressure pump controller 403, a human-machine interface device 405, and a main controller 404. The first pressure sensor 401 is disposed on the first pipeline 301 to detect the negative pressure value of the first pipeline 301; the second pressure sensor 402 is disposed on the second pipeline 302 to detect the negative pressure value of the second pipeline 302; the negative pressure pump controller 403 is disposed on the main body 100 of the device and connected to the negative pressure pump 300 to control the negative pressure pump 300; the human-machine interface device 405 is disposed outside the main body 100 of the device; and the main controller 404 is disposed on the main body 100 of the device and connected to the first pressure sensor 401, the second pressure sensor 402, the negative pressure pump controller 403, and the human-machine interface device 405. This allows the portable electric negative pressure suction device to be operated via the human-machine interface 405 to input specific operating instructions. The main controller 404 can use the instruction information input via the human-machine interface 405, combined with the detection information obtained from the first pressure sensor 401 and the second pressure sensor 402, to issue control instructions to the negative pressure pump controller 403 to control the operation of the negative pressure pump 300.

[0045] The human-machine interface device 405 typically includes a display 406 (or touchscreen), a button device 407, a pressure regulating knob 408 for direct forced pressure adjustment, and a voice announcer 409, all of which are connected to the main controller 404. The display 406 shows the working information of the portable electric negative pressure suction device, such as the detection information of the first pressure sensor 401 and the second pressure sensor 402, the working status of the negative pressure pump 300, and the working duration. The button device 407 is used for parameter input, start / stop control, or other operations. The voice announcer 409 can be used to provide abnormal prompts or key information prompts controlled by the main controller 404. The pressure regulating knob 408 can also be directly connected to the negative pressure pump controller 403 for direct adjustment of the working pressure of the negative pressure pump 300 during use.

[0046] Furthermore, the control system 400 also includes a proportional valve 410, which is typically installed on the first pipeline 301 to adjust the negative pressure value of the first pipeline 301. The proportional valve 410 is connected to and controlled by the main controller 404 to adjust the negative pressure value of the first pipeline 301 according to preset conditions or usage requirements.

[0047] Thirdly, this application discloses a method of using a portable electric negative pressure suction device.

[0048] The method of using this portable electric negative pressure suction device is based on the control system 400 described above. Specifically, the control system 400 also includes a switch valve 411 disposed on the second pipeline 302. Usage instructions include: First, the main controller 404 controls the switch valve 411 to be in the closed state, and then controls the negative pressure pump controller 403 to drive the negative pressure pump 300 to work. At the beginning, when the negative pressure pump 300 is working, the negative pressure of the first pipeline 301 will evacuate the receiving chamber 106 to cause the bag 204 to expand and open. Therefore, at this time, the switch valve 411 is closed to prevent medical staff from directly suctioning the patient's sputum site with the suction tube set on the second connecting pipe 203, which may cause the suction pressure to be too high.

[0049] Then, the main controller 404 is set with a first preset value of the normal working negative pressure of the first pipeline 301. The main controller 404 reads the negative pressure value detected by the first pressure sensor 401 in real time and records it as the first negative pressure value. When the first negative pressure value reaches the first preset value, the switch valve 411 is opened. When the first negative pressure value reaches (i.e., is greater than or equal to) the first preset value, we consider that the bag body 204 of the collection bag 200 has reached the ideal open state and the suctioning operation can begin.

[0050] Then, the main controller 404 is set with a second preset value for the normal working negative pressure of the second pipeline 302. The main controller 404 reads the negative pressure value detected by the second pressure sensor 402 in real time and records it as the second negative pressure value. When the second negative pressure value reaches the second preset value, the suctioning operation can begin. The second negative pressure value is the working negative pressure for suctioning. That is, the second negative pressure value is confirmed before the suctioning begins to ensure the reliability and safety of the suctioning operation.

[0051] The human-computer interaction device 405 sets preset parameters for the main controller 404. The preset parameters include a first preset value, a second preset value, the maximum negative pressure value allowed by the second tubing 302 during suctioning, the duration of the maximum negative pressure value allowed, the duration of a single suctioning session, the duration of the suctioning interval, etc.

[0052] The control system 400 is further provided with a proportional valve 410, which is installed on the second pipeline 302 to adjust the negative pressure value of the second pipeline 302.

[0053] During use, such as during suctioning, the second negative pressure value is read in real time at a certain frequency by the main controller 404. If the suctioning pressure is insufficient, the negative pressure pump controller 403 can be controlled by the main controller 404 to increase the working pressure of the negative pressure pump 300. If the second negative pressure value is too high, it is adjusted first by the proportional valve 410. After the proportional valve 410 is stabilized, the negative pressure supply of the negative pressure pump 300 can be appropriately reduced by cooperating with the proportional valve 410 and the negative pressure pump 300 to ensure the safety and stability of the suctioning operation.

[0054] For example, in case of emergencies or other reasons, the installation of the storage bag 200 may be unstable, or the sealing between the cover 201 and the inlet 107 of the receiving chamber 106 may leak. In this case, after reading the first negative pressure value, if the first negative pressure value is less than the first preset value, the power of the negative pressure pump 300 can be increased to provide a greater negative pressure to stabilize the open state of the bag 204. At the same time, this greater negative pressure may exceed the working negative pressure of the suction operation. In this case, the proportional valve 410 can be driven by the main controller 404 to adjust the second negative pressure value in the second pipeline 302 in real time.

[0055] For example, during suctioning, the suction tube may become blocked due to special reasons, causing an abnormal increase in pressure. In this case, you can consider quickly reducing the negative pressure by using the proportional valve 410 or cutting off the negative pressure source of suctioning by using the switch valve 411, and simultaneously provide a voice alarm prompt through the voice broadcaster 409.

[0056] The portable electric negative pressure suction device of this application uses an electric negative pressure pump 300 as a negative pressure source, and its various parts are highly integrated, featuring small size, light weight, and independent operation.

[0057] Furthermore, this portable electric negative pressure suction device offers high convenience, reliability, and safety in terms of control and use, significantly enhancing the user experience. It effectively balances portability and functionality, meeting the negative pressure suction needs in diverse medical scenarios.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A portable electric negative pressure suction device, characterized in that, include: The main body of the equipment is provided with a receiving chamber and a connection interface connected to the receiving chamber. The upper part of the receiving chamber is provided with an inlet. A storage bag includes a bag body and a cover that closes the bag body. The cover is provided with a first connecting tube and a second connecting tube, both of which pass through the cover. The bag body is accommodated in the accommodating cavity, and the cover is detachably fastened to the inlet. A negative pressure pump is installed on the main body of the device. The suction port of the negative pressure pump is connected to the connection interface through a first pipe to keep the receiving chamber under negative pressure. The suction port of the negative pressure pump is connected to the first connection pipe through a second pipe to keep the storage bag under negative pressure.

2. The portable electric negative pressure suction device according to claim 1, characterized in that, The main body of the device includes: Base; The support body has a first support body at its upper part, a second support body on the first support body, the second support body extending downward around the outside of the first support body to form an installation space, and the second support body being detachably connected to the base. The mounting body is fixedly mounted on the first support body. The mounting body protrudes upward from the first support column to form the receiving chamber. The top opening of the receiving chamber is the insertion port. The negative pressure pump is installed within the installation space.

3. The portable electric negative pressure suction device according to claim 2, characterized in that, The upper end of the connection interface extends upward from the lower side of the first support to the bottom of the receiving chamber; the upper end of the connection interface is an open opening, and vents are arranged around the periphery of the opening.

4. The portable electric negative pressure suction device according to claim 1, characterized in that, It also includes a rechargeable battery module for power supply.

5. The portable electric negative pressure suction device according to claim 1, characterized in that, The first connecting tube and the second connecting tube extend through the cover and toward the side where the bag is located, and the extension length of the first connecting tube is less than the extension length of the second connecting tube.

6. The portable electric negative pressure suction device according to claim 1, characterized in that, One side of the main body of the device is provided with a swingable connector, and the other side is provided with a latch. The connector can swing toward the connector to press the cover under the connector. The latch is used to detachably connect the connector so that the connector maintains the tendency to press the cover.

7. The portable electric negative pressure suction device according to claim 1, characterized in that, The main body of the device is equipped with a hook device.

8. A control system, characterized in that, The control system, applied to the portable electric negative pressure suction device according to any one of claims 1-7, comprises: A first pressure sensor is disposed on the first pipeline to detect the negative pressure value of the first pipeline; A second pressure sensor is installed on the second pipeline to detect the negative pressure value of the second pipeline; A negative pressure pump controller is mounted on the main body of the equipment and connected to the negative pressure pump to control the negative pressure pump; A human-computer interaction device is disposed outside the main body of the device; The main controller is located on the main body of the device and is connected to the first pressure sensor, the second pressure sensor, the negative pressure pump controller, and the human-machine interface device.

9. The control system according to claim 8, characterized in that, It also includes: A proportional valve is installed on the second pipeline to adjust the negative pressure value of the first pipeline.

10. A method of using a portable electric negative pressure suction device, characterized in that, Based on the control system of claim 8, the control system further includes a switch valve disposed on the second pipeline; The method of use includes: The main controller controls the switch valve to be in the closed state, and then controls the negative pressure pump controller to drive the negative pressure pump to work; The main controller is set with a first preset value for the normal working negative pressure of the first pipeline. The negative pressure value detected by the first pressure sensor is read in real time by the main controller and recorded as the first negative pressure value. When the first negative pressure value reaches the first preset value, the switch valve is opened. The main controller is set with a second preset value for the normal working negative pressure of the second pipeline. The negative pressure value detected by the second pressure sensor is read in real time by the main controller and recorded as the second negative pressure value. When the second negative pressure value reaches the second preset value, the suctioning operation can begin.

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