Negative pressure trauma treatment device

Abstract

The utility model discloses a negative pressure trauma treatment device, including a negative pressure source, a pipeline switch module, a liquid level sensor, a pressure detector, a main controller and an alarm device; the pipeline switch module is used to control the connection state between the negative pressure source and the negative pressure drainage tank; the liquid level sensor is used to detect the liquid level of the liquid in the negative pressure drainage tank and send a liquid level signal to the main controller; the pressure detector is used to detect the pressure in the negative pressure drainage tank and send the pressure data to the main controller; the main controller is used to control the operation of the negative pressure source, the pipeline switch module and the alarm device, and control the pressure in the negative pressure drainage tank. The negative pressure trauma treatment device of the utility model can perform non-contact measurement of the amount of liquid in the negative pressure drainage tank, has the characteristics of strong anti-interference, high detection accuracy and sensitivity, and fast response, and can accurately and timely notify the user to replace the negative pressure drainage tank.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a negative pressure trauma treatment device. Background Art

[0002] Negative Pressure Wound Therapy (NPWT) is a new wound treatment technology that promotes wound healing by establishing a negative pressure zone near the wound. NPWT has a good healing effect on various acute and chronic wounds and can be applied to wounds that are difficult to heal with traditional dry and wet dressings, such as diabetic foot ulcers, pressure sores, burns, surgical incisions, etc. This treatment method has been proven to significantly improve the speed and quality of wound healing, help reduce the occurrence of complications, and improve the quality of life of patients.

[0003] During negative pressure trauma treatment, the wound is sealed with negative pressure sponge and transparent film, and negative pressure suction is applied to the area near the wound through a drainage tube to keep the wound relatively closed, thereby preventing cross-infection of the wound by external bacteria. The active suction process can discharge the accumulated fluid, necrotic tissue, and bacteria in the wound in a timely manner without causing accumulation of exudate in the wound. The continuous negative pressure state can promote tissue blood vessel growth, improve local microcirculation in the wound, promote wound growth, and promote the disappearance of tissue edema, thereby ultimately promoting wound healing.

[0004] When using negative pressure wound therapy equipment for treatment, a lower negative pressure is generally used, generally -55mmHg to -250mmHg, and the appropriate pressure can be set according to the actual situation of the wound. Since it is easy to reach the set pressure, the negative pressure source is usually in an intermittent working state. Since wound healing takes a certain amount of time, negative pressure trauma therapy usually lasts from several days to several weeks. The doctor will determine the duration of negative pressure trauma therapy based on the type, size, depth of the wound and the progress of healing. During the treatment process, the doctor will regularly evaluate the condition of the wound and adjust the treatment plan according to the healing situation. Once the wound shows good signs of healing, the doctor may gradually reduce or stop negative pressure therapy and switch to other wound management methods, such as dressing changes, suturing, etc.

[0005] The current negative pressure trauma treatment system usually includes a negative pressure trauma treatment device, a negative pressure drainage can, a drainage tube and a special dressing. The special dressing is attached to the surface of the patient's wound, and the negative pressure drainage can is connected to the special dressing through the drainage tube. Among them, the negative pressure drainage can acts as a container for collecting wound discharge, which includes blood, exudate and other possible liquids. When the liquid in the negative pressure drainage can is full, it needs to be replaced in time. Negative pressure trauma treatment devices are generally equipped with a drainage can full indication or alarm function to remind medical staff or other users to replace the drainage can.

[0006] A commonly used method for detecting the full status of a drainage can is to determine whether the drainage can is full by detecting pressure changes. For example, when the pressure in the drainage can fluctuates multiple times in a short period of time, it is determined that the drainage can is full.

[0007] However, the method of simply determining whether the drainage can is full by detecting pressure has some defects, such as recognition errors, high delay, low sensitivity in complex wound situations, and long judgment time. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide a negative pressure trauma treatment device, which can quickly and accurately judge whether the liquid in the negative pressure drainage can is full, so as to accurately and timely notify the user to replace the negative pressure drainage can.

[0009] In order to solve the above technical problems, the utility model provides a negative pressure trauma treatment device, including a negative pressure source, a pipeline switch module, a liquid level sensor, a main controller and an alarm device; the pipeline switch module is used to control the connection state between the negative pressure source and the negative pressure drainage tank; the liquid level sensor is used to detect the liquid level of the liquid in the negative pressure drainage tank and send a liquid level signal to the main controller; the main controller is used to control the operation of the negative pressure source, the pipeline switch module and the alarm device.

[0010] Specifically, the main controller can control the operation of the negative pressure source, the pipeline switch module and the alarm device according to the liquid level signal, so as to suspend treatment or send an alarm message in time.

[0011] As an improvement of the above solution, the negative pressure trauma treatment device further includes a pressure detector, which is used to detect the pressure in the negative pressure drainage tank and send the pressure data to the main controller, and the main controller can control the pressure in the negative pressure drainage tank according to the pressure data. Specifically, the main controller can control the pressure in the negative pressure drainage tank by controlling the negative pressure source and the pipeline switch module according to the pressure data.

[0012] As an improvement of the above solution, the alarm device includes a display device or a speaker, and the main controller can be used to control the display device to display alarm information or control the speaker to sound an alarm according to the liquid level signal.

[0013] As an improvement of the above solution, the pipeline switch module is a solenoid valve.

[0014] As an improvement of the above scheme, the negative pressure trauma treatment device further comprises a housing, and the negative pressure source, pipeline switch module, liquid level sensor, pressure detector, main controller and alarm device are arranged in the housing. Preferably, the negative pressure drainage tank is connected to the negative pressure trauma treatment device through a buckle combination, and no pipeline is required to connect the negative pressure drainage tank and the negative pressure trauma treatment device. As a result, the negative pressure trauma treatment device has a compact structure, high component integration, strong integrity, small size, and is easy to carry and use.

[0015] As an improvement of the above solution, the negative pressure trauma treatment device further includes a power supply unit, which includes a battery or an external power supply. Specifically, the power supply unit is respectively connected to the negative pressure source, the pipeline switch module, the main controller, the alarm device, the liquid level sensor and the pressure detector to adapt and supply power to the negative pressure source, the pipeline switch module, the main controller, the alarm device, the liquid level sensor and the pressure detector.

[0016] As an improvement of the above solution, the negative pressure source is a diaphragm air pump.

[0017] As an improvement of the above solution, the negative pressure trauma treatment device includes a plurality of the liquid level sensors, and the main controller controls the display device to display the corresponding liquid level status according to the liquid level signals from the plurality of the liquid level sensors.

[0018] As an improvement of the above solution, the liquid level sensor is a capacitive liquid level sensor or an ultrasonic liquid level sensor.

[0019] As an improvement of the above solution, the liquid level sensor is an optical liquid level sensor, the side wall of the negative pressure drainage can includes a transparent area, and the optical liquid level sensor is arranged at a corresponding position of the transparent area. Specifically, when the negative pressure drainage can is combined with the negative pressure trauma treatment device, the optical liquid level sensor can detect the liquid level of the liquid in the negative pressure drainage can through the transparent area.

[0020] As an improvement of the above solution, the negative pressure wound treatment device further comprises a control button for operating and controlling the negative pressure wound treatment device. For example, the control button comprises a start button, a direction key, a mute key or other keys. Preferably, the control button is located on the outer surface of the housing.

[0021] The implementation of this utility model has the following beneficial effects:

[0022] The utility model can perform non-contact measurement of the amount of liquid in the negative pressure drainage can, has the characteristics of strong anti-interference, high detection accuracy and sensitivity, and fast response, and can accurately and timely notify the user to replace the negative pressure drainage can.

[0023] Specifically, the main controller can monitor whether the liquid in the negative pressure drainage tank is full through the liquid level sensor. The detection method is simple and direct, with high detection sensitivity and good detection effect. When it is detected that the liquid in the negative pressure drainage tank is full, the main controller controls the pipeline switch module to close the negative pressure pipeline and controls the alarm device to alarm, so as to remind the user to replace the negative pressure drainage tank in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the working principle of the first embodiment of the negative pressure wound treatment device of the utility model;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structural principle of the negative pressure trauma treatment device;

[0026] Figure 3 It is a schematic diagram of the working principle of the second embodiment of the negative pressure trauma treatment device of the present utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0028] like Figure 1 As shown, Figure 1 The schematic diagram of the working principle of the first embodiment of the negative pressure wound treatment device of the utility model is shown, and the device includes a negative pressure source 1, a pipeline switch module 2, a main controller 3, an alarm device 4 and a liquid level sensor 5; the pipeline switch module 2 is connected to the negative pressure source 1 through a first negative pressure pipeline 6, and is connected to a negative pressure drainage tank 8 through a second negative pressure pipeline 7, and the pipeline switch module 2 is used to control the connection state between the first negative pressure pipeline 6 and the second negative pressure pipeline 7, that is, the pipeline switch module 2 is used to control the connection state between the negative pressure source 1 and the negative pressure drainage tank 8. Among them, the negative pressure drainage tank 8 is connected to the dressing 10 through a drainage tube 9, and the dressing 10 is attached to the patient's wound.

[0029] like Figure 1As shown, the negative pressure trauma treatment device is used in conjunction with a negative pressure drainage can, a drainage tube and a dressing. The negative pressure trauma treatment device can be reused as a device host, while the negative pressure drainage can, the drainage tube and the dressing are provided as disposable consumables. The negative pressure source 1, the pipeline switch module 2, the main controller 3, the alarm device 4 and the liquid level sensor 5 can be arranged in the housing of the negative pressure trauma treatment device. The negative pressure trauma treatment device includes an interface for connecting the negative pressure drainage can, and a fixing mechanism for installing the negative pressure drainage can, such as a slot or a buckle.

[0030] Preferably, the negative pressure trauma treatment device comprises a housing, and the negative pressure source, pipeline switch module, liquid level sensor, main controller and alarm device are arranged in the housing. Preferably, the negative pressure drainage tank is connected to the negative pressure trauma treatment device through a buckle combination, and no pipeline is required to connect the negative pressure drainage tank and the negative pressure trauma treatment device. As a result, the negative pressure trauma treatment device has a compact structure, high component integration, strong integrity, small size, easy to carry and use, and the negative pressure drainage tank and the negative pressure trauma treatment device are easy to disassemble and assemble.

[0031] The installation position of the liquid level sensor 5 is close to the side wall of the negative pressure drainage tank 8. The liquid level sensor 5 is communicatively connected with the main controller 3, and is used to detect the liquid level signal of the liquid in the negative pressure drainage tank 8 and send it to the main controller 3; the main controller 3 is communicatively connected with the negative pressure source 1, and is used to control the operation of the negative pressure source 1 to generate negative pressure; the main controller 3 is communicatively connected with the pipeline switch module 2 and the alarm device 4 respectively.

[0032] The main controller 3 can monitor whether the liquid in the negative pressure drainage tank 8 is full through the liquid level sensor 5, with high detection sensitivity and good detection effect. When it is detected that the liquid in the negative pressure drainage tank 8 is full, the main controller 3 controls the pipeline switch module 2 to close the negative pressure pipeline, and controls the alarm device 4 to work, so as to remind the user to replace the negative pressure drainage tank 8 in time to improve the treatment effect.

[0033] like Figure 2 As shown, the alarm device 4 includes a display device 11 and / or a speaker 12, and the main controller 3 is respectively connected to the display device 11 and the speaker 12. When the liquid level sensor 5 detects that the liquid in the negative pressure drainage can 8 is full, the main controller 3 controls the display device 11 to display the alarm information and controls the speaker 12 to sound an alarm according to the liquid level signal sent by the liquid level sensor 5, so as to remind the user to replace the negative pressure drainage can 8 in time to improve the treatment effect.

[0034] Preferably, the pipeline switch module 2 is preferably a solenoid valve, but is not limited thereto. The on-off state of the negative pressure pipeline can be controlled by controlling the opening and closing of the solenoid valve, so as to timely block the connection between the negative pressure drainage tank 8 and the negative pressure source 1.

[0035] Preferably, the negative pressure source 1 is a diaphragm air pump, but is not limited thereto.

[0036] like Figure 1 and Figure 2 As shown, the negative pressure trauma treatment device includes a plurality of the liquid level sensors 5 to detect different liquid level states of the liquid in the negative pressure drainage can 8. The main controller 3 controls the display device 11 to display the corresponding liquid level state (such as 100%, 75% and 50% liquid level states, wherein the 100% liquid level state indicates that the negative pressure drainage can 8 is full of liquid) according to the liquid level signals of the plurality of the liquid level sensors 5, so that the user can understand the liquid level state of the negative pressure drainage tube and make preparations for replacing the negative pressure drainage can 8 in advance, thereby improving the replacement efficiency.

[0037] Preferably, the liquid level sensor 5 is a capacitive liquid level sensor, but is not limited thereto. In other embodiments, an ultrasonic liquid level sensor or an optical liquid level sensor may be selected for liquid level detection. When the liquid level sensor 5 adopts an optical liquid level sensor 5, the side wall of the negative pressure drainage tank 8 includes a transparent area, and the optical liquid level sensor is arranged at a corresponding position of the transparent area to perform optical liquid level detection. For example, the entire tank body of the negative pressure drainage tank 8 may be made of a transparent material.

[0038] like Figure 3 As shown, Figure 3 The schematic diagram of the working principle of the second embodiment of the negative pressure wound treatment device of the utility model is shown. The difference between this embodiment and the first embodiment is that the device further includes a pressure detector 13 and a power supply unit 14.

[0039] Preferably, the pressure detector 13 is connected to the second negative pressure pipeline 7, and is used to detect the pressure in the negative pressure drainage tank and send the pressure data to the main controller 3. The main controller 3 can control the operation of the negative pressure source 1 according to the pressure data, thereby controlling the pressure in the negative pressure drainage tank to ensure that the pressure in the negative pressure drainage tank is stable and meet the different negative pressure requirements of users.

[0040] Preferably, the pressure detector 13 is also disposed in the housing.

[0041] Preferably, the power supply unit 14 is respectively connected to the negative pressure source 1, the pipeline switch module 2, the main controller 3, the alarm device 4, the liquid level sensor 5 and the pressure detector 13, so as to adapt and power the negative pressure source 1, the pipeline switch module 2, the main controller 3, the alarm device 4, the liquid level sensor 5 and the pressure detector 13 to ensure the stable operation of the device. The power supply unit includes a battery or an external power supply, such as a dry cell, a storage battery, a DC power supply, an AC power supply, etc. Preferably, the power supply unit is also arranged in the housing.

[0042] Preferably, the negative pressure trauma treatment device further comprises a control button for operating and controlling the negative pressure trauma treatment device. For example, it is used to set treatment parameters such as pressure, working mode, etc., or to control the start and stop of the pump, to clear alarm information, to switch pressure units, and to lock or unlock buttons. For example, the control button comprises a start button, a direction button, a mute button or other buttons. Preferably, the control button is located on the outer surface of the housing.

[0043] In summary, the utility model can perform non-contact measurement of the amount of liquid in the negative pressure drainage can, and has the characteristics of strong anti-interference, high detection accuracy and sensitivity, and fast response, so as to accurately and promptly notify the user to replace the negative pressure drainage can and improve the treatment effect.

[0044] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A negative pressure trauma treatment device, characterized in that: It includes a negative pressure source, a pipeline switch module, a liquid level sensor, a pressure detector, a main controller and an alarm device; The pipeline switch module is used to control the connection state between the negative pressure source and the negative pressure drainage tank; The liquid level sensor is used to detect the liquid level in the negative pressure drainage tank and send a liquid level signal to the main controller; The pressure detector is used to detect the pressure in the negative pressure drainage can and send the pressure data to the main controller; The main controller is used to control the operation of the negative pressure source, the pipeline switch module and the alarm device, and to control the pressure in the negative pressure drainage tank.

2. The negative pressure wound treatment device according to claim 1, characterized in that: The alarm device includes a display device or a speaker, and the main controller is used to control the display device to display alarm information or control the speaker to sound an alarm according to the liquid level signal.

3. The negative pressure wound treatment device according to claim 2, characterized in that: The negative pressure trauma treatment device includes a plurality of the liquid level sensors, and the main controller controls the display device to display the corresponding liquid level status according to the liquid level signals from the plurality of the liquid level sensors.

4. The negative pressure wound treatment device according to claim 1, characterized in that: The pipeline switch module is a solenoid valve.

5. The negative pressure wound treatment device according to claim 1, characterized in that: The negative pressure trauma treatment device also includes a shell, and the negative pressure source, pipeline switch module, liquid level sensor, pressure detector, main controller and alarm device are arranged in the shell.

6. The negative pressure wound treatment device according to claim 1, characterized in that: The negative pressure wound treatment device further comprises a power supply unit, which comprises a battery or an external power supply.

7. The negative pressure wound treatment device according to claim 1, characterized in that: The negative pressure source is a diaphragm air pump.

8. The negative pressure wound treatment device according to claim 1, characterized in that: The liquid level sensor is a capacitive liquid level sensor or an ultrasonic liquid level sensor.

9. The negative pressure wound treatment device according to claim 1, characterized in that: The liquid level sensor is an optical liquid level sensor, the side wall of the negative pressure drainage tank includes a transparent area, and the optical liquid level sensor is arranged at a corresponding position of the transparent area.

10. The negative pressure wound treatment device according to claim 1, characterized in that: The negative pressure wound treatment device also includes a control button for operating and controlling the negative pressure wound treatment device.

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