Medical negative pressure drainage device

Abstract

The utility model discloses a medical negative pressure drainage apparatus, which comprises a vacuum pump, a drainage tube, a drainage tube, a drainage tube, a drainage tube and a drainage tube, and is characterized in that the vacuum pump is responsible for generating negative pressure to enable the drainage tube to continuously or intermittently suck liquid; the negative pressure bin is used as a negative pressure storage and buffer area to stabilize negative pressure output; the control circuit board is used for controlling the switch and monitoring and adjusting the negative pressure level at the same time to ensure that the pressure is within a set range; the vacuum pump, the negative pressure bin and the control circuit board are all installed in the shell. According to the medical negative pressure drainage apparatus, the use convenience is improved through the integrated design, the vacuum pump, the negative pressure bin, the control circuit board and the power supply part are integrated in a compact device, external complex equipment is not needed, and the medical negative pressure drainage apparatus is compact in structure and convenient to carry. In addition, by designing the matched liquid collecting device with the liquid discharging opening, the tedious operation that a liquid collecting bag needs to be replaced frequently in a traditional negative pressure device is avoided, liquid discharging can be completed only through simple operation, and the nursing intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medical negative pressure drainage device and belongs to the technical field of medical instruments. BACKGROUND

[0002] During surgical operations, trauma care and chronic wound treatment, body fluid accumulation is one of the main factors affecting wound healing. If the body fluid cannot be drained in time, not only will the tissue repair be delayed, but also bacteria may breed, increasing the risk of infection. Therefore, negative pressure drainage technology is widely used in clinical practice. Through continuous or intermittent negative pressure suction, the body fluid is discharged, the wound healing is accelerated, and the incidence of infection is reduced.

[0003] At present, most traditional negative pressure drainage devices rely on a central negative pressure system, and patients need to be treated in a hospital environment, which limits their freedom of movement and is not suitable for postoperative rehabilitation at home, long-term chronic wound management and other needs. At the same time, some traditional drainage devices are large in size and inconvenient to carry, or the negative pressure control is not precise enough, affecting the comfort of patients. Moreover, many electric negative pressure drainage devices need continuous power supply and cannot be used when there is no power supply or when they cannot be connected to a power source, affecting the stability and application range of the devices, especially in outdoor, emergency medical and resource-limited environments. In addition, the liquid collection container of the traditional device usually has a limited capacity and needs to be frequently replaced, and the replacement and cleaning process of the liquid collection container is complex, which can easily cause pollution and increase the workload of medical staff and the nursing cost of patients.

[0004] Therefore, it is necessary to design a new type of medical negative pressure drainage device, which is integrated and lightweight, compact in structure, portable, improves flexibility in the use environment, does not need to be continuously connected to a power source, ensures normal operation in outdoor, emergency medical, remote areas and other environments, has automatic pressure monitoring and adjustment functions to ensure stable negative pressure and prevent excessive suction from damaging tissue, and is provided with a large-capacity liquid collection device to facilitate drainage, thereby meeting the needs of portability and high efficiency in medical treatment. SUMMARY

[0005] Therefore, the utility model aims at providing a medical negative pressure drainage device which is portable, compact in structure and convenient to use.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a medical negative pressure drainage device, which comprises:

[0007] A vacuum pump is used to generate negative pressure to enable the drainage tube to continuously or intermittently suck liquid.

[0008] A negative pressure chamber is used as a negative pressure storage and buffer area to stabilize the negative pressure output.

[0009] A control circuit board is used to control the switch while monitoring and adjusting the negative pressure level to ensure the pressure within the set range.

[0010] A housing is provided inside which the vacuum pump, negative pressure chamber and control circuit board are installed.

[0011] The control circuit board comprises:

[0012] A pressure sensor is used to monitor the negative pressure value in the system in real time.

[0013] A buzzer is used to provide an audible alarm to remind the user of equipment abnormalities or important state changes.

[0014] A key is used to control the device.

[0015] A display lamp is used to provide visual status indication, such as power supply condition, whether it is malfunctioning, and battery level.

[0016] A circuit board is provided on which the buzzer, key and display lamp are fixedly installed, and the pressure sensor and vacuum pump are respectively connected to the circuit board.

[0017] The negative pressure chamber is provided with a pressure detection port connected to the pressure sensor.

[0018] The negative pressure chamber is further provided with a negative pressure liquid inlet and a negative pressure liquid outlet; the vacuum pump is provided with an air suction interface and an output interface; the negative pressure liquid inlet is connected to the drainage tube, and the negative pressure liquid outlet is connected to the air suction interface of the vacuum pump.

[0019] The bottom end of the housing is provided with a mounting portion, and the mounting portion is provided with a liquid outlet connected to the output interface of the vacuum pump.

[0020] The mounting portion is further provided with a first exhaust port, and a corresponding second exhaust port is provided at the top end of the housing; the first exhaust port and the second exhaust port are connected by an exhaust pipe.

[0021] The housing is further provided with a liquid collecting device fixedly installed on the mounting portion.

[0022] The liquid collecting device is provided with a liquid discharge port.

[0023] The surface of the negative pressure chamber is provided with a liquid accumulation observation window, and a corresponding slot is provided on the surface of the housing.

[0024] The housing is provided with a power supply portion connected to the control circuit board.

[0025] Adopt above technical scheme, the utility model discloses a medical negative pressure drainage device passes through the integrated design, promotes the use convenience, and the vacuum pump, negative pressure storehouse, control circuit board, power unit are integrated in a compact device, need not the external connection complex equipment, and the structure is compact, and the convenient carrying are facilitated. Simultaneously, wireless power supply (built-in power unit) is rid of the dependence on central negative pressure system or the continuous power connection, and the patient can use under the scene such as family nursing, going out and emergency rescue etc. Moreover, built-in pressure sensor can monitor the negative pressure level in real time, ensure the stable drainage effect, need not the manual frequent adjustment. In addition, through the design of the matching liquid collecting device with the liquid discharge port, the cumbersome operation of needing to frequently replace the liquid collecting bag of traditional negative pressure device is avoided, and the liquid discharge can be completed only by simple operation, and the nursing intensity is reduced. Simultaneously, still adopt the design of the liquid accumulation observation window and the shell notch cooperation, need not the equipment of disassembling and can view the liquid collection state at any time, and the user and nursing personnel monitor the liquid accumulation situation, and clean in time, improve the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is use state schematic drawing of the utility model.

[0027] Figure 2 It is structure schematic drawing of the utility model.

[0028] Figure 3 It is another angle structure schematic drawing of the utility model.

[0029] Figure 4 It is structure exploded schematic drawing of the utility model.

[0030] Figure 5 It is structure assembly schematic drawing of the utility model. DETAILED DESCRIPTION

[0031] The utility model is further explained in detail by the drawings and specific embodiments.

[0032] As Figures 1-5 The utility model discloses a medical negative pressure drainage device, including: vacuum pump 4, for responsible generation negative pressure makes drainage tube 7 can continuously or intermittently attract liquid, negative pressure storehouse 2, for as negative pressure storage and buffer area, stabilizes negative pressure output, control circuit board 3, for control switch, while monitoring and adjusting negative pressure level, ensure that pressure is in the set range, shell 1, vacuum pump 4, negative pressure storehouse 2 and control circuit board 3 are all installed in the shell 1 interior. Through the integrated design, promote the use convenience, and the vacuum pump 4, negative pressure storehouse 2, control circuit board 3, power unit 13 are integrated in a compact device, need not the external connection complex equipment, and the structure is compact, and the convenient carrying are facilitated.

[0033] The control circuit board 3 comprises: a pressure sensor 31 for monitoring the negative pressure value in the system in real time; a buzzer 32 for providing an audible alarm to remind the user of abnormal equipment or important state changes; a key 33 for controlling the device; display lights 34 for providing visual state indications, such as power supply conditions, whether there is a fault, and the power level; a circuit board 35 on which the buzzer 32, the key 33, and the display lights 34 are fixedly installed, and the pressure sensor 31 and the vacuum pump 4 are respectively connected to the circuit board 35. The integrated control circuit board 3 integrates the pressure sensor 31, the buzzer 32, the key 33, the display lights 34, and other components on the circuit board 35, so that the device has the advantages of intelligent monitoring, real-time alarm, simple control, intuitive display, and the like, greatly improving the safety, convenience, and stability of use.

[0034] The negative pressure chamber 2 is provided with a pressure detection port 21 connected to the pressure sensor 31 for detecting the pressure in the negative pressure chamber 2. In addition, the negative pressure chamber 2 serves as a buffer area, and in combination with the precise monitoring of the pressure detection port 21, can effectively balance the negative pressure fluctuations, prevent the negative pressure from being too large or too small when the vacuum pump 4 is running, and ensure continuous and stable negative pressure output.

[0035] The negative pressure chamber 2 is also provided with a negative pressure liquid inlet 22 and a negative pressure liquid outlet 23; the vacuum pump 4 is provided with an air suction interface 41 and an output interface 42; the negative pressure liquid inlet 22 is connected to the drainage tube 7, and the negative pressure liquid outlet 23 is connected to the air suction interface 41 of the vacuum pump 4. The negative pressure liquid inlet 22 is directly connected to the drainage tube 7, so that the wound exudate can quickly enter the negative pressure chamber 2, improving the drainage effect, reducing the liquid retention time, and reducing the risk of infection. The negative pressure liquid outlet 23 is connected to the air suction interface 41 of the vacuum pump 4, forming a stable negative pressure suction channel, ensuring continuous and efficient negative pressure suction capacity, and improving the liquid collection efficiency.

[0036] The bottom end of the shell 1 is provided with a mounting portion 5, and the mounting portion 5 is provided with a liquid outlet 51 connected to the output interface 42 of the vacuum pump 4. The output interface 42 of the vacuum pump 4 is directly connected to the liquid outlet 51, forming an efficient liquid discharge channel, so that the waste liquid in the negative pressure chamber 2 can be quickly discharged, preventing liquid retention and improving the drainage efficiency; at the same time, it also ensures the continuity of negative pressure drainage, reduces the influence of liquid accumulation on the stability of negative pressure, and improves the overall working efficiency of the device.

[0037] The installation part 5 is also provided with a first exhaust port 52, and a second exhaust port 12 corresponding to the top end of the shell 1 is provided; the first exhaust port 52 and the second exhaust port 12 are connected through an exhaust pipe 8, which is used to enable the device to discharge gas in time while discharging liquid, so as to avoid affecting the drainage effect due to gas accumulation in the negative pressure bin 2. In addition, by optimizing the exhaust path, the instability of the negative pressure output caused by the suction fluctuation of the vacuum pump 4 is prevented, the continuity and accuracy of the negative pressure drainage are improved, and the efficiency of the wound drainage is ensured.

[0038] The shell 1 is also provided with a liquid collecting device 6, which is preferably a liquid collecting bag in the embodiment; the liquid collecting device 6 is fixedly installed on the installation part 5, which is used to efficiently collect the liquid generated by the negative pressure drainage, prevent the liquid from staying in the device, and improve the continuous working ability of the drainage system. In addition, the liquid collecting device 6 is closely matched with the shell 1, which ensures the portability of the device, so that the device is suitable for various medical needs such as hospitals and emergency scenes.

[0039] The liquid collecting device 6 is provided with a liquid discharge port 61, which is used to enable the waste liquid to be quickly and conveniently discharged, avoid excessive accumulation of liquid in the liquid collecting device 6, and ensure that the negative pressure drainage device can continuously and efficiently operate. Moreover, by setting the liquid discharge port 61, the liquid discharge process is simplified, medical staff can conveniently clean the drainage liquid through the liquid discharge port 61, reduce the operation complexity of the device, and improve the efficiency of medical work.

[0040] The surface of the negative pressure bin 2 is provided with a liquid accumulation observation window 24, and a corresponding notch 11 is provided on the surface of the shell 1, which is used to enable medical staff to directly observe the amount of drainage liquid in the negative pressure bin 2, avoid excessive accumulation of liquid to cause instability of the negative pressure system or device failure, and also facilitate early detection of problems such as excessive liquid or abnormal liquid accumulation. Medical staff can timely discharge liquid or replace the liquid collecting device 6, so as to avoid the influence of poor drainage on the treatment effect.

[0041] The shell 1 is provided with a power supply part 13 inside, which is connected with the control circuit board 3, and is used to ensure the stability and reliability of the power supply of the device, avoid the device from stopping working or abnormally functioning due to power supply problems, and ensure the continuous and efficient operation of the drainage device. Moreover, the power supply part 13 is designed to be compact and reasonable, which not only improves the stability of the device, but also effectively reduces the complexity of the internal wiring of the device, so that the whole system is more simple and reliable. In addition, the design of the internal power supply part 13 helps the device to work normally in the environment without external power supply, such as emergency medical treatment, outdoor first aid and the like, which increases the adaptability and flexibility of the device.

[0042] The use method is as follows:

[0043] ① Set the basic flushing amount

[0044] Before use, set the basic irrigation volume according to the wound condition of the patient, usually set to 5ml, to ensure that the wound is not subjected to excessive pressure during irrigation, avoiding damage to the wound. The basic irrigation volume can be adjusted through the control panel of the device, and the specific value can be adjusted according to the clinical needs and the condition of the wound.

[0045] ②Irrigation step

[0046] Physiological saline (usually 5ml) is injected into the irrigation liquid storage area of the irrigation pump. Start the irrigation pump, the device will start to make the physiological saline contact the target wound. During the irrigation process, the vacuum pump 4 of the device will be slightly delayed to start. The start time of the vacuum pump 4 should ensure that the irrigation liquid contacts the wound before the suction function is started.

[0047] ③Suction step

[0048] After the vacuum pump 4 is started, 5ml of irrigation liquid and turbid matter in the wound are sucked into the liquid collecting device 6 of the device. The suction volume can be adjusted by sensor measurement to ensure that the suction volume is balanced with the actual irrigation liquid volume, avoiding excessive suction or insufficient suction.

[0049] ④Reciprocal irrigation and suction operation

[0050] In order to ensure that the wound is thoroughly cleaned, the user can perform a reciprocal irrigation and suction operation. Each irrigation and suction cycle can remove turbid matter in the wound, ensuring that the wound remains clean and free of impurities, thereby purifying the surgical field. The reciprocal irrigation and suction can adjust the irrigation liquid volume and suction volume according to the condition of the wound.

[0051] ⑤End operation

[0052] After the wound is cleaned, stop the irrigation and suction functions and ensure that the device is properly closed. Clean the liquid collecting device 6 to ensure that the device is clean and functional for the next use.

[0053] The utility model discloses a medical negative pressure drainage device, which is characterized by the following technical solutions: the vacuum pump 4, the negative pressure bin 2, the control circuit board 3 and the power supply unit 13 are integrated in a compact device, which eliminates the need for external complex equipment and improves the convenience of use. At the same time, the wireless power supply (built-in power supply unit 13) eliminates the dependence on the central negative pressure system or continuous power supply connection, so that the patient can use it in the scenes of home nursing, outdoor activities and emergency rescue. Moreover, the built-in pressure sensor 31 can monitor the negative pressure level in real time, ensuring stable drainage effect without frequent manual adjustment. In addition, the design of the liquid collecting device 6 with a drainage port 61 avoids the cumbersome operation of frequently replacing the liquid collecting bag required by the traditional negative pressure device, and only simple operation is needed to complete the drainage, reducing the nursing intensity. At the same time, the design of the liquid accumulation observation window 24 and the shell notch 11 cooperates, so that the user and the nursing staff can monitor the liquid accumulation situation at any time without disassembling the equipment, clean up in time, and improve the operation efficiency.

[0054] Obviously, the above embodiments are only examples for clearly illustrating, and not limit the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A medical negative pressure wound therapy apparatus, characterized in that, The application relates to a negative pressure drainage device, which comprises the following parts: a vacuum pump for generating negative pressure to enable the drainage tube to continuously or intermittently suck liquid; a negative pressure tank for serving as a negative pressure storage and buffer area to stabilize the negative pressure output; a control circuit board for controlling the switch while monitoring and adjusting the negative pressure level to ensure that the pressure is within the set range; a shell, wherein the vacuum pump, the negative pressure tank and the control circuit board are installed inside the shell.

2. A medical negative pressure wound drain according to claim 1, wherein, The control circuit board comprises: a pressure sensor for monitoring the negative pressure value in the system in real time; a buzzer for providing sound alarm to remind the user of equipment abnormalities or important state changes; a key for controlling the device; display lights for providing visual state indication, such as power supply condition, whether failure or power; a circuit board, wherein the buzzer, the key and the display lights are fixedly installed on the circuit board, and the pressure sensor and the vacuum pump are connected with the circuit board.

3. A medical negative pressure wound drain according to claim 2, wherein, The negative pressure tank is provided with a pressure detection port connected with the pressure sensor.

4. A medical negative pressure wound drain according to claim 3, wherein, The negative pressure tank is further provided with a negative pressure liquid inlet and a negative pressure liquid outlet; the vacuum pump is provided with an air suction interface and an output interface; the negative pressure liquid inlet is connected with the drainage tube, and the negative pressure liquid outlet is connected with the air suction interface of the vacuum pump.

5. A medical negative pressure wound drain according to claim 4, wherein, The bottom end of the shell is provided with a mounting part, and the mounting part is provided with a liquid outlet connected with the output interface of the vacuum pump.

6. A medical negative pressure drain as claimed in claim 5, wherein, The mounting part is further provided with a first exhaust port, and a matched second exhaust port is arranged at the top end of the shell; the first exhaust port and the second exhaust port are connected through an exhaust pipe.

7. A medical negative pressure drain as claimed in claim 6, wherein, The shell is further provided with a liquid collecting device fixedly installed on the mounting part.

8. A medical negative pressure drain as claimed in claim 7, wherein, The liquid collecting device is provided with a liquid discharge port.

9. The medical negative pressure wound drain of claim 1, wherein, The surface of the negative pressure tank is provided with a liquid accumulation observation window, and a matched slot is arranged on the surface of the shell.

10. A negative pressure wound therapy device as defined in any of claims 1-9, characterized in that The shell is internally provided with a power supply part connected with the control circuit board.

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