Portable negative pressure drainage device

Abstract

The utility model discloses a portable negative pressure drainage device which comprises a base, a negative pressure pump, a battery mounting groove, a negative pressure pipe and a liquid storage bottle, the negative pressure pump and the battery mounting groove are arranged on the base, a lithium battery is detachably and electrically connected in the battery mounting groove, and the lithium battery is used for supplying power to the negative pressure pump; the negative pressure pipe is vertically arranged on the base, and the negative pressure pipe is communicated with the negative pressure pump; a drainage hole is formed in the top of the liquid storage bottle, a containing cavity correspondingly matched with the negative pressure pipe is formed in the bottom of the liquid storage bottle, a negative pressure hole is formed in the bottom in the containing cavity, a sealing gasket is arranged on the periphery of the negative pressure hole in the bottom in the containing cavity, and the liquid storage bottle is in threaded connection with the negative pressure pipe through the containing cavity and communicated with the negative pressure pipe through the negative pressure hole. The top end of the negative-pressure pipe is in close contact with the sealing washer to form sealing; the negative-pressure pump vacuumizes the interior of the liquid storage bottle through the negative-pressure pipe and the negative-pressure hole to generate negative pressure; the negative pressure drainage device is compact in overall structure and convenient to carry, the air leakage risk is reduced, the negative pressure drainage effect is guaranteed, and the utilization rate of the negative pressure drainage device is increased.

Description

Technical Field

[0001] This utility model relates to the field of medical negative pressure drainage, and in particular to a portable negative pressure drainage device. Background Technology

[0002] Medical negative pressure drainage involves draining fluids from various wounds, pus from between body tissues or in body cavities, intestinal fluid, digestive fluids, etc., into a storage container using a negative pressure source. This keeps the skin around the wound dry, reduces ulceration, lowers the risk of infection, and promotes wound healing.

[0003] Existing negative pressure drainage devices have two problems:

[0004] (1) In order to reuse the negative pressure source, the negative pressure source and the liquid storage container are connected by a negative pressure pipe. After use, the liquid storage container and the negative pressure source can be separated. However, this will make the negative pressure drainage device more scattered and inconvenient to carry. Moreover, the negative pressure pipe is relatively troublesome to disassemble and assemble, and there is also a risk of air leakage, which will affect the negative pressure drainage effect.

[0005] (2) Batteries are usually integrated with negative pressure sources, which means that the batteries cannot be separated from the negative pressure sources when charging, which is very inconvenient and will also affect the utilization rate of the negative pressure sources. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a portable negative pressure drainage device.

[0007] The technical solution adopted in this utility model is as follows:

[0008] A portable negative pressure drainage device includes a base, a negative pressure pump, a battery mounting slot, a negative pressure tube, and a storage bottle. The negative pressure pump and the battery mounting slot are mounted on the base, and the battery mounting slot is electrically connected to the negative pressure pump. A lithium battery is detachably electrically connected in the battery mounting slot, and the lithium battery is used to power the negative pressure pump. The negative pressure tube is vertically mounted on the base and communicates with the negative pressure pump. The top of the storage bottle has a drainage hole, and the bottom of the storage bottle forms a receiving cavity that corresponds to and mates with the negative pressure tube. A negative pressure hole is provided at the bottom of the receiving cavity, and a sealing gasket is provided around the negative pressure hole at the bottom of the receiving cavity. The storage bottle is threadedly connected to the negative pressure tube through the receiving cavity, and the storage bottle communicates with the negative pressure tube through the negative pressure hole. The top of the negative pressure tube is in close contact with the sealing gasket to form a seal. The negative pressure pump evacuates the inside of the storage bottle through the negative pressure tube and the negative pressure hole to generate negative pressure.

[0009] As a preferred embodiment of this invention, an exhaust port and a control switch for controlling the start and stop of the negative pressure pump are provided on the housing of the negative pressure pump.

[0010] As a preferred embodiment of this invention, the battery mounting groove includes a ring and a central post. A positive electrode is disposed on the outer circumferential surface of the central post, and a negative electrode is disposed on the inner circumferential surface of the ring. The lithium battery has a cylindrical structure, and a groove corresponding to the central post is disposed on the bottom end face of the cylindrical lithium battery. A positive electrode is disposed on the inner circumferential surface of the groove, and a negative electrode is disposed on the outer circumferential surface of the bottom end of the cylindrical lithium battery. The positive electrode of the lithium battery is threadedly connected to the positive electrode on the outer circumferential surface of the central post, and the negative electrode of the lithium battery is threadedly connected to the negative electrode on the inner circumferential surface of the ring.

[0011] As a preferred embodiment of this invention, the height of the negative pressure tube is greater than half the height of the liquid storage bottle.

[0012] As a preferred embodiment of this invention, the liquid storage bottle is made of transparent plastic material.

[0013] As a preferred embodiment of this invention, the outer surface of the liquid storage bottle is provided with scale lines representing the volume.

[0014] As a preferred embodiment of this invention, a negative pressure channel is provided inside the base, and the negative pressure pipe is connected to the negative pressure pump through the negative pressure channel.

[0015] As a preferred embodiment of this invention, after the liquid storage bottle is detached from the negative pressure tube, a cap is threadedly connected to the top of the negative pressure tube, and a sealing plunger is inserted into the bottom cavity of the liquid storage bottle.

[0016] As a preferred embodiment of this invention, the negative pressure pump has a hook for suspension on its outer casing.

[0017] As a preferred embodiment of this invention, the negative pressure pump has a slot on its housing, and the hook is inserted into the slot.

[0018] The advantages of this utility model are:

[0019] (1) The overall structure is compact and easy to carry, and the liquid storage bottle is easy to disassemble and assemble;

[0020] (2) After the storage bottle is threadedly connected to the negative pressure pipe, the sealing gasket between the storage bottle and the negative pressure pipe forms the first seal, and the threaded connection between the storage bottle and the negative pressure pipe forms the second seal, thereby reducing the risk of air leakage and ensuring the negative pressure drainage effect.

[0021] (3) The lithium battery is threadedly connected to the battery mounting slot to form an electrical connection path, which not only realizes the detachable connection and makes the lithium battery replaceable, but also realizes the reliability of the electrical connection between the lithium battery and the battery mounting slot; the replaceability of the lithium battery can also improve the utilization rate of the negative pressure drainage device. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model without the lithium battery and the liquid storage bottle installed;

[0024] Figure 3 This is a cross-sectional schematic diagram of the lithium battery of this utility model;

[0025] Figure 4 This is a cross-sectional schematic diagram of the liquid storage bottle of this utility model;

[0026] Figure 5 This is a cross-sectional schematic diagram of the liquid storage bottle and the negative pressure pipe after threaded connection;

[0027] Figure 6 This is a schematic diagram of the disassembly and assembly hook component of this utility model.

[0028] Meaning of the reference numerals in the diagram:

[0029] 1-Base, 2-Negative pressure pump, 3-Battery mounting slot, 4-Negative pressure tube, 5-Storage bottle, 6-Lithium battery;

[0030] 7-Drainage hole, 8-Receiving cavity, 9-Negative pressure hole, 10-Negative pressure channel, 11-Sealing gasket;

[0031] 12-Exhaust port, 13-Control switch, 14-Cover, 15-Scale line;

[0032] 21-Hook component, 22-Slot, 31-Ring body, 310-Negative electrode, 32-Center post, 320-Positive electrode;

[0033] 61 - Positive electrode of battery end, 62 - Negative electrode of battery end. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1-6As shown, this embodiment is a portable negative pressure drainage device, including a base 1, a negative pressure pump 2, a battery mounting slot 3, a negative pressure tube 4, and a storage bottle 5. The negative pressure pump 2 and the battery mounting slot 3 are mounted on the base 1, and the battery mounting slot 3 is electrically connected to the negative pressure pump 2 via a wire passing through the inside of the base 1. A lithium battery 6 is detachably electrically connected in the battery mounting slot 3, and the lithium battery 6 is used to power the negative pressure pump 2. The negative pressure tube 4 is vertically mounted on the base 1 and communicates with the negative pressure pump 2. Specifically, a negative pressure channel 10 is provided inside the base 1, and the negative pressure tube 4 passes through the negative pressure... Channel 10 is connected to negative pressure pump 2; a drainage hole 7 is provided at the top of the liquid storage bottle 5, and an external drainage tube is connected to the drainage hole 7; a receiving cavity 8 is formed at the bottom of the liquid storage bottle 5, which corresponds to and cooperates with the negative pressure tube 4. A negative pressure hole 9 is provided at the bottom of the receiving cavity 8, and a sealing gasket 11 is provided around the negative pressure hole 9 at the bottom of the receiving cavity 8. The liquid storage bottle 5 is threadedly connected to the negative pressure tube 4 through the receiving cavity 8. The liquid storage bottle 5 is connected to the negative pressure tube 4 through the negative pressure hole 9. The top end of the negative pressure tube 4 is in close contact with the sealing gasket 11 to form a seal. The negative pressure pump 2 evacuates the inside of the liquid storage bottle 5 through the negative pressure tube 4 and the negative pressure hole 9 to generate negative pressure.

[0036] like Figure 2 As shown, in this embodiment, an exhaust port 12 and a control switch 13 for controlling the start and stop of the negative pressure pump 2 are provided on the housing of the negative pressure pump 2 to facilitate user operation.

[0037] To achieve a detachable electrical connection between the lithium battery 6 and the battery mounting slot 3, such as Figure 2 and 3 As shown, the battery mounting groove 3 in this embodiment includes a ring 31 and a central post 32. A positive electrode 320 is provided on the outer circumferential surface of the central post 32, and a negative electrode 310 is provided on the inner circumferential surface of the ring 31. The lithium battery 6 has a cylindrical structure. The bottom end face of the cylindrical lithium battery 6 is provided with a groove that corresponds to and cooperates with the central post 32. The battery end positive electrode 61 is provided on the inner circumferential surface of the groove, and the battery end negative electrode 62 is provided on the outer circumferential surface of the bottom end of the cylindrical lithium battery 6. The battery end positive electrode 61 of the lithium battery 6 is threadedly connected to the positive electrode 320 on the outer circumferential surface of the central post 32. At the same time, the battery end negative electrode 62 of the lithium battery 6 is threadedly connected to the negative electrode 310 on the inner circumferential surface of the ring 31. The lithium battery 6 is threadedly connected to the battery mounting groove 3 to form an electrical connection path, which not only realizes the detachable connection and makes the lithium battery 6 replaceable, but also realizes the reliability of the electrical connection between the lithium battery 6 and the battery mounting groove 3.

[0038] When the lithium battery 6 needs to be charged, the lithium battery 6 is removed. The external charging device for charging the lithium battery 6 has a battery mounting slot with the same structure as the battery mounting slot 3 in this embodiment. The electrical connection between the lithium battery 6 and the battery mounting slot of the external charging device is the same as in this embodiment. In order to facilitate the simultaneous charging of multiple lithium batteries 6, the external charging device can be provided with multiple battery mounting slots.

[0039] like Figure 5 As shown, the height of the negative pressure tube 4 is greater than half the height of the storage bottle 5; to make the storage bottle 5 transparent and visible, it is made of transparent plastic material to facilitate direct observation of the internal condition of the storage bottle 5; as shown... Figure 1 As shown, a scale line 15 representing the volume is also provided on the outer surface of the liquid storage bottle 5 to make it easier to intuitively determine the drainage volume.

[0040] After the liquid storage bottle 5 is detached from the negative pressure tube 4, a cap 14 is threadedly connected to the top of the negative pressure tube 4 to prevent foreign objects from entering the negative pressure tube 4. Figure 2 As shown; a sealing plunger (not shown in the figure) is inserted into the bottom cavity 8 of the liquid storage bottle 5 to seal the bottom cavity 8 and the negative pressure hole 9 of the liquid storage bottle 5.

[0041] To meet the requirements for suspension installation and use, such as Figure 6 As shown, in this embodiment, a hook 21 for hanging installation is provided on the housing of the negative pressure pump 2; in order to facilitate the installation and removal of the hook 21, a slot 22 is provided on the housing of the negative pressure pump 2, and the hook 21 is inserted into the slot 22 so as to facilitate the installation or removal of the hook 21 according to the usage requirements.

[0042] In use, the lithium battery 6 is threaded to the battery mounting slot 3, and the liquid storage bottle 5 is threaded to the negative pressure tube 4. The drainage hole 7 at the top of the liquid storage bottle 5 is connected to the external drainage tube. The negative pressure pump 2 is started by controlling the control switch 13. The negative pressure pump 2 creates a vacuum inside the liquid storage bottle 5 through the negative pressure tube 4 and the negative pressure hole 9 to generate negative pressure. Liquids such as accumulated liquid, intestinal fluid, or digestive fluid are drained into the liquid storage bottle 5 by the negative pressure through the external drainage tube and the drainage hole 7. After the negative pressure drainage is completed, the negative pressure pump 2 is stopped by controlling the control switch 13. Then, the liquid storage bottle 5 is separated from the negative pressure tube 4. A sealing plunger is inserted into the bottom cavity 8 of the liquid storage bottle 5 to prevent liquid leakage. The cap 14 is threaded to the top of the negative pressure tube 4 to prevent foreign objects from entering the negative pressure tube 4.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "setting," and "forming" should be interpreted broadly; for example, they can refer to fixed connections or settings, detachable connections or settings, or integrated structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components; those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A portable negative pressure wound therapy device, characterized by: The utility model provides a negative pressure pump device, including base, negative pressure pump, battery installation groove, negative pressure pipe and liquid storage bottle, negative pressure pump and battery installation groove set up on the base, and battery installation groove is connected with negative pressure pump electricity, and the detachable electricity of battery installation groove is connected with lithium battery, and the lithium battery is used for power supply for negative pressure pump, negative pressure pipe is set up vertically on the base, and negative pressure pipe is communicated with negative pressure pump, the top of liquid storage bottle is provided with drainage hole, and the bottom of liquid storage bottle forms the accommodating cavity that corresponds with negative pressure pipe cooperation, and negative pressure hole is arranged in the bottom of accommodating cavity, and sealing washer is arranged in the bottom of accommodating cavity negative pressure hole periphery, liquid storage bottle is connected with negative pressure pipe through the accommodating cavity and is connected with negative pressure pipe through negative pressure hole, and negative pressure pipe top end is in close contact with sealing washer and forms the seal, and negative pressure pump is connected with negative pressure pipe and negative pressure hole and is connected with negative pressure hole to the vacuum inside the liquid storage bottle to produce negative pressure.

2. The portable negative pressure wound therapy device of claim 1, wherein, An exhaust port and a control switch for controlling the start and stop of the negative pressure pump are arranged on the shell of the negative pressure pump.

3. The portable negative pressure wound therapy device of claim 1, wherein, The battery installation groove comprises a ring body and a center column, a positive electrode is arranged on the outer circumferential surface of the center column, and a negative electrode is arranged on the inner circumferential surface of the ring body; the lithium battery has a cylindrical structure, a groove corresponding to the center column is arranged on the bottom end surface of the cylindrical structure lithium battery, a battery end positive electrode is arranged on the inner circumferential surface of the groove, and a battery end negative electrode is arranged on the outer circumferential surface of the bottom end of the cylindrical structure lithium battery; the battery end positive electrode of the lithium battery is threadedly connected with the positive electrode on the outer circumferential surface of the center column, and simultaneously, the battery end negative electrode of the lithium battery is threadedly connected with the negative electrode on the inner circumferential surface of the ring body.

4. The portable negative pressure wound therapy device of claim 1, wherein, The height of the negative pressure pipe is greater than one-half of the height of the liquid storage bottle.

5. The portable negative pressure wound therapy device of claim 1 or 4, wherein, The liquid storage bottle is made of transparent plastic material.

6. The portable negative pressure wound therapy device of claim 5, wherein, Scale lines representing the volume are arranged on the outer surface of the liquid storage bottle.

7. The portable negative pressure wound therapy device of claim 1, wherein, A negative pressure channel is arranged in the base, and the negative pressure pipe is communicated with the negative pressure pump through the negative pressure channel.

8. The portable negative pressure wound therapy device of claim 1, wherein, After the liquid storage bottle is separated from the negative pressure pipe, a cover is threadedly connected with the top end of the negative pressure pipe, and a sealing plunger is inserted into the accommodating cavity in the bottom of the liquid storage bottle.

9. The portable negative pressure wound therapy device of claim 1, wherein, A hook member for hanging is arranged on the shell of the negative pressure pump.

10. The portable negative pressure wound therapy device of claim 9, wherein, A slot is arranged on the shell of the negative pressure pump, and the hook member is inserted into the slot.

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