Separable medical negative pressure aspirator

Abstract

The utility model discloses a separable medical negative pressure aspirator which comprises a control device, a negative pressure generating set and a liquid collecting set. The negative pressure generation group is communicated with the liquid collection group; a liquid inlet is formed in the liquid collecting group; a vacuum pump is arranged in the negative pressure generation group; the control device is detachably connected with the negative pressure generation group; when the medical negative pressure aspirator works, the vacuum pump is started by operating the control device, and tissue fluid / blood on a wound of a patient is sucked into the fluid collection group from the fluid inlet under the action of the vacuum pump; after the operation of the medical negative pressure aspirator is finished, the liquid collecting group and the polluted negative pressure generating group can be discarded, and a high-value control device is reserved for being connected with other negative pressure generating groups and liquid collecting groups for use next time, so that the risk of cross infection can be reduced, and the influence on the treatment effect can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of suction devices, and particularly relates to a separable medical negative pressure suction device. Background Art

[0002] A medical negative pressure suction device is a medical device used for negative pressure treatment, and is used to suck and remove liquids, blood, secretions, etc. at the wound on the body surface / inside of a patient during the medical process;

[0003] With the popularization of the medical negative pressure wound treatment method, the demand for medical negative pressure suction devices is increasing day by day. However, due to the shortage of hospital resources, home negative pressure treatment has become a commonly used treatment method;

[0004] During negative pressure treatment, various germs and bacteria are often carried in the patient's wound, and the main source of the negative pressure air flow is the vacuum negative pressure pump body (hereinafter referred to as the pump body) inside the negative pressure suction device. This causes the germs and bacteria at the wound to easily contaminate the pump body during the treatment process, and this kind of contamination occurs inside the negative pressure suction device, making it difficult for users to discover. Therefore, when the negative pressure suction device is used among different patients, there is a risk of cross-infection;

[0005] In order to reduce the risk of cross-infection, the technical means adopted in the prior art is to add a water-blocking and breathable membrane in the pump body and the gas pipeline, and filter bacteria through the microporous water-blocking and breathable membrane. Although it has a certain effect of blocking germs and bacteria, the use of the water-blocking and breathable membrane brings two problems:

[0006] 1. Its microporous structure will reduce the air flow rate of the pump. In order to maintain the air flow rate output by the pump, it is necessary to increase the output of the negative pressure pump, which will cause energy loss, resulting in a decline in the overall performance of the negative pressure pump, an increase in power consumption, device heating and high power consumption, affecting the treatment effect;

[0007] 2. The water-blocking and breathable membrane needs to be fixed on the connecting gas path or the housing, and there is a certain risk of falling off. After falling off, it will still contaminate the inside of the negative pressure suction device, resulting in the scrapping of the device. Content of the Utility Model

[0008] In order to overcome the deficiencies of the prior art, the utility model provides a separable medical negative pressure suction device that can reduce the risk of cross-infection and avoid affecting the treatment effect.

[0009] The technical solution adopted by the utility model to solve its technical problems is:

[0010] A separable medical negative pressure suction device includes a control device, a negative pressure generation group, and a liquid collection group;

[0011] The negative pressure generation group and the liquid collection group are connected and communicated;

[0012] The liquid collection group is provided with a liquid inlet;

[0013] A vacuum pump is provided in the negative pressure generating group;

[0014] The control device is detachably connected to the negative pressure generating group.

[0015] For the medical negative pressure suction device as described above, the negative pressure generating group is detachably connected to the liquid collection group.

[0016] For the medical negative pressure suction device as described above, the control device includes an operation panel and a control circuit.

[0017] For the medical negative pressure suction device as described above, the operation panel can be a combination of a liquid crystal screen and buttons or a touch screen.

[0018] For the medical negative pressure suction device as described above, the control device includes a pressure detection device, and the negative pressure generating group includes a pressure detection path and a detection opening;

[0019] The vacuum pump is connected to the pressure detection path;

[0020] The liquid collection group is in communication with the pressure detection path;

[0021] The detection opening is provided on the pressure detection path;

[0022] The pressure detection device can be embedded into the detection opening to detect the pressure inside the liquid collection group.

[0023] For the medical negative pressure suction device as described above, the liquid collection group includes a first cavity and a second cavity that are separated from each other;

[0024] The pressure detection device includes a first pressure detection device and a second pressure detection device;

[0025] The pressure detection path includes a first pressure detection path and a second pressure detection path;

[0026] The detection opening includes a first detection opening provided on the first pressure detection path and a second detection opening provided on the second pressure detection path;

[0027] The first cavity is in communication with the first pressure detection path; the first pressure detection device is detachably embedded into the first detection opening;

[0028] The second cavity is in communication with the second pressure detection path; the second pressure detection device is detachably embedded into the second detection opening.

[0029] The medical negative pressure aspirator as described above, wherein a coagulant is contained in the first cavity and / or the second cavity.

[0030] The medical negative pressure aspirator as described above, wherein a control positive metal contact and a control negative metal contact connected to the control circuit are provided on the control device;

[0031] A negative pressure positive metal contact and a negative pressure negative metal contact are provided on the negative pressure generating group;

[0032] The control positive metal contact is in touch contact with the negative pressure positive metal contact, and the control negative metal contact is in touch contact with the negative pressure negative metal contact.

[0033] The medical negative pressure aspirator as described above, wherein the negative pressure generating group and the liquid collection group are disposable components.

[0034] The medical negative pressure aspirator as described above, wherein a display lamp for displaying the working state of the medical negative pressure aspirator may be provided on the control device.

[0035] The beneficial effects of the present utility model are:

[0036] When the medical negative pressure aspirator works, the control device starts the vacuum pump. Under the action of the vacuum pump, the tissue fluid / blood on the patient's wound is sucked from the liquid inlet into the liquid collection group; after the operation of the medical negative pressure aspirator is completed, the liquid collection group and the contaminated negative pressure generating group can be discarded, and the high-value control device is retained for use in connecting other negative pressure generating groups and liquid collection groups next time, which can not only reduce the risk of cross-infection but also avoid affecting the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present utility model will be further described below with reference to the drawings and embodiments.

[0038] Figure 1 is a schematic diagram of the connection relationship of Embodiment 1;

[0039] Figure 2 is a schematic diagram of the connection relationship of Embodiment 2;

[0040] Figure 3 is a schematic diagram of the structure of the touch screen;

[0041] Figure 4 is a schematic diagram of the positional relationship among the control device, the negative pressure generating group, and the liquid collection group;

[0042] Figure 5 is one of the schematic diagrams of the positional relationship of Embodiment 1;

[0043] Figure 6 is the second schematic diagram of the positional relationship of Embodiment 1;

[0044] Figure 7 It is one of the schematic diagrams of the connection mode between the negative pressure generating group and the liquid collection group;

[0045] Figure 8 It is the second of the schematic diagrams of the connection mode between the negative pressure generating group and the liquid collection group;

[0046] The marked features in the attached drawings are as follows:

[0047] 1. Control device; 2. Negative pressure generating group; 21. Vacuum pump; 24. Negative pressure positive metal contact; 25. Negative pressure negative metal contact; 3. Liquid collection group; 31. First cavity; 32. Second cavity; 4. Liquid inlet; 11. Operation panel; 12. Coagulant; 13. Pressure detection device; 14. Control positive metal contact; 15. Control negative metal contact; 16. Display lamp; 131. First pressure detection device; 132. Second pressure detection device; 22. Pressure detection path; 221. First pressure detection path; 222. Second pressure detection path; 23. Detection opening; 231. First detection opening; 232. Second detection opening. Specific embodiments

[0048] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the attached drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the creation of the present utility model can be combined interactively without conflicting with each other.

[0049] In the prior art, the control device 1 and the negative pressure generating group 2 of most medical negative pressure aspirators are non-detachably connected; therefore, when the vacuum pump 21 in the negative pressure generating group 2 is contaminated, in order to avoid cross-infection, it is necessary to discard the control device 1 and the negative pressure generating group 2 together; and among the above components, the market value of the control device 1 is significantly higher than that of the negative pressure generating group 2, and discarding the whole machine will cause great waste of resources; obviously, although cross-infection is avoided, it will cause great waste of resources.

[0050] As an improvement, a water-blocking and air-permeable membrane is added in the pump body and the gas pipeline to avoid cross-infection and reduce the contamination of the vacuum pump 21. Although it can reduce cross-infection and the situation of the whole machine being discarded, at the same time, the setting of the water-blocking and air-permeable membrane will cause a decrease in the air flow of the pump, affecting the treatment effect, and the water-blocking and air-permeable membrane will still contaminate the negative pressure generating group 2 after falling off. Therefore, when the negative pressure generating group 2 is contaminated, the problem of cross-infection cannot be avoided, and when it is contaminated, the negative pressure generating group 2 and the control device 1 still need to be discarded together, and the treatment effect is not good;

[0051] To solve the above technical problems, the solution provided by this application can be referred to Figure 1 、 Figure 2 , a separable medical negative pressure suction device, including a control device 1, a negative pressure generating group 2 and a liquid collection group 3;

[0052] The negative pressure generating group 2 and the liquid collection group 3 are communicated with each other;

[0053] The liquid collection group 3 is provided with a liquid inlet 4;

[0054] A vacuum pump 21 is arranged in the negative pressure generating group 2;

[0055] The control device 1 is detachably connected to the negative pressure generating group 2.

[0056] When the medical negative pressure suction device of this embodiment works, the control device 1 is operated to start the vacuum pump 21. Under the action of the vacuum pump 21, the tissue fluid / blood on the patient's wound is sucked from the liquid inlet 4 into the liquid collection group 3. After the medical negative pressure suction device finishes working, the low-value liquid collection group 3 and the contaminated negative pressure generating group 2 can be discarded, and the high-value control device 1 can be retained for use in connecting other negative pressure generating groups and liquid collection groups next time. Since the liquid collection group 3 and the negative pressure generating group 2 are replaceable, the liquid collection group 3 and the negative pressure generating group 2 can be replaced when treating different patients, reducing the risk of cross-infection; and there is no need to additionally set components such as a water-blocking and air-permeable membrane to filter bacteria and germs, which has no impact on the treatment effect; and the patient can also connect different models of negative pressure generating groups 2 and liquid collection groups 3 according to needs, which is convenient and fast.

[0057] Of course, a suction head or other components convenient for adsorbing liquid can also be connected to the liquid inlet 4.

[0058] Furthermore, the negative pressure generating group 2 and the liquid collection group 3 are detachably connected. The advantage of this setting is that when there is a lot of tissue fluid / blood on the patient's wound and the liquid collection group 3 is full but treatment operations still need to be carried out, only the liquid collection group 3 needs to be replaced, and the treatment operation can be continued without replacing the negative pressure generating group 2 and the liquid collection group 3 together, reducing the treatment cost;

[0059] Specifically, the connection mode of the negative pressure generating group 2 and the liquid collection group 3 can be any one of the connection modes in the prior art such as snap connection, slider connection, plug connection, etc.

[0060] Furthermore, the control device 1 includes an operation panel 11 and a control circuit, and the operation panel 11 is communicatively connected to the control circuit; the negative pressure generating group 2 is communicatively connected to the control circuit;

[0061] The operation panel 11 is an interface for the user to interact with the medical negative pressure aspirator, and can be used to control the switch of the medical negative pressure aspirator and the negative pressure value; while the control circuit is the electronic part of the control device, responsible for processing the user input instructions from the operation panel 11 and managing the operation of the medical negative pressure aspirator according to these instructions; when a work instruction is input on the operation panel 11, after the control circuit receives the work instruction, it can control the negative pressure generating group 2 to perform the adsorption operation, which facilitates medical professionals to operate the medical negative pressure aspirator quickly and accurately, and at the same time provides necessary feedback information.

[0062] Refer to Figures 1 - 3 , specifically, the operation panel 11 can be a combination of a liquid crystal screen and buttons or a touch screen. The operation buttons can be used to control the operation of the negative pressure generating group 2 and display the pressure value in the negative pressure generating group 2; the above functions can also be realized through the touch screen.

[0063] Refer to Figure 2 , furthermore, the control device 1 includes a pressure detection device 13, and the negative pressure generating group 2 includes a pressure detection path 22 and a detection opening 23;

[0064] The vacuum pump 21 is connected to the pressure detection path 22;

[0065] The liquid collection group 3 is in communication with the pressure detection path 22;

[0066] The detection opening 23 is provided on the pressure detection path 22;

[0067] The pressure detection device 13 can be embedded into the detection opening 23 to accurately detect the pressure in the liquid collection group 3, ensuring the accuracy and real-time nature of the measurement.

[0068] Refer to Figure 1 , specifically, the liquid collection group 3 includes a first cavity 31 and a second cavity 32 that are separated from each other;

[0069] The pressure detection device 13 includes a first pressure detection device 131 and a second pressure detection device 132;

[0070] The pressure detection path 22 includes a first pressure detection path 221 and a second pressure detection path 222;

[0071] The detection openings 23 include a first detection opening 231 provided in the first pressure detection path 221 and a second detection opening 232 provided in the second pressure detection path 222;

[0072] The first cavity 31 is in communication with the first pressure detection path 221; the first pressure detection device 131 is detachably embedded in the first detection opening 231;

[0073] The second cavity 32 is in communication with the second pressure detection path 222; the second pressure detection device 132 is detachably embedded in the second detection opening 232.

[0074] The first cavity 31 and the second cavity 32 can collect different liquids respectively, isolating the operations between the cavities.

[0075] More specifically, a coagulant 12 is contained in the first cavity 31 and / or the second cavity 32. The coagulant 12 can promote the solidification of the liquid in the first cavity 31 or the second cavity 32, and can prevent the waste liquid in the first cavity 31 and the second cavity 32 from flowing out after being discarded, causing large-scale pollution.

[0076] Specifically, a control positive metal contact 14 and a control negative metal contact 15 connected to the control circuit are provided on the control device 1;

[0077] A negative pressure positive metal contact 24 and a negative pressure negative metal contact 25 are provided on the negative pressure generating group 2;

[0078] The control positive metal contact 14 is in touch contact with the negative pressure positive metal contact 24, and the control negative metal contact 15 is in touch contact with the negative pressure negative metal contact 25.

[0079] The control device 1 can be powered on by contacting the negative pressure generating group 2. There is no need to set up wires, which can achieve quick connection and disconnection. Before discarding the contaminated negative pressure generating group 2 and the liquid collection group 3 and connecting a new negative pressure generating group 2 and liquid collection group 3, there is no need to repeatedly disassemble the circuit between the control device 1 and the negative pressure generating group 2, which is convenient and fast.

[0080] Furthermore, the negative pressure generating group 2 and the liquid collection group 3 are disposable components.

[0081] Furthermore, a display lamp 16 for displaying the working state of the medical negative pressure aspirator can be provided on the control device 1, which is convenient for monitoring the working state of the medical negative pressure aspirator.

[0082] The above is a specific description of the preferred embodiment of the present utility model. However, the present utility model is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A separable medical negative pressure suction device, characterized in that: It includes a control device (1), a negative pressure generating group (2), and a liquid collection group (3); The negative pressure generating group (2) and the liquid collection group (3) are in communication; The liquid collection group (3) is provided with a liquid inlet (4); A vacuum pump (21) is provided in the negative pressure generating group (2); The control device (1) is detachably connected to the negative pressure generating group (2).

2. The medical negative pressure suction device according to claim 1, wherein: The negative pressure generating group (2) is detachably connected to the liquid collection group (3).

3. The medical negative pressure suction device according to claim 1, wherein: The control device (1) includes an operation panel (11) and a control circuit.

4. The medical negative pressure suction device according to claim 3, wherein: The operation panel (11) is a combination of a liquid crystal screen and keys or a touch screen.

5. The medical negative pressure suction device according to claim 1, wherein: The control device (1) includes a pressure detection device (13), the negative pressure generating group (2) includes a pressure detection path (22) and a detection opening (23); The vacuum pump (21) is connected to the pressure detection path (22); The liquid collection group (3) is in communication with the pressure detection path (22); The detection opening (23) is provided on the pressure detection path (22); The pressure detection device (13) can be embedded into the detection opening (23) to detect the pressure in the liquid collection group (3).

6. The medical negative pressure suction device according to claim 5, characterized in that: The liquid collection group (3) includes a first cavity (31) and a second cavity (32) separated from each other; The pressure detection device (13) includes a first pressure detection device (131) and a second pressure detection device (132); The pressure detection path (22) includes a first pressure detection path (221) and a second pressure detection path (222); The detection opening (23) includes a first detection opening (231) provided on the first pressure detection path (221) and a second detection opening (232) provided on the second pressure detection path (222); The first cavity (31) is in communication with the first pressure detection path (221); the first pressure detection device (131) is detachably embedded into the first detection opening (231); The second cavity (32) is in communication with the second pressure detection path (222); the second pressure detection device (132) is detachably embedded into the second detection opening (232).

7. The medical negative pressure suction device according to claim 6, characterized in that: A coagulant (12) is contained in the first cavity (31) and / or the second cavity (32).

8. The medical negative pressure suction device according to claim 3, characterized in that: The control device (1) is provided with a control positive metal contact (14) and a control negative metal contact (15) connected to the control circuit; The negative pressure generating group (2) is provided with a negative pressure positive metal contact (24) and a negative pressure negative metal contact (25); The control positive metal contact (14) is in touch contact with the negative pressure positive metal contact (24), and the control negative metal contact (15) is in touch contact with the negative pressure negative metal contact (25).

9. The medical negative pressure suction device according to claim 1, wherein: The negative pressure generating group (2) and the liquid collection group (3) are disposable components.

10. The medical negative pressure suction device according to claim 1, wherein: The control device (1) may be provided with a display lamp (16) for displaying the working state of the medical negative pressure aspirator.

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