A portable negative pressure therapy device

Abstract

The utility model discloses a portable negative pressure treatment device relates to negative pressure treatment device technical field, and this portable negative pressure treatment device includes negative pressure treatment appearance, and negative pressure treatment appearance is composed by collection box and negative pressure generator. This portable negative pressure treatment device sets up sealing assembly through the connecting end of drainage tube and connecting pipe, can prevent outside air from entering the system, maintains stable negative pressure state, can avoid the overflow of drainage liquid from the connecting place simultaneously, prevents the pollution surrounding environment and patient clothing, bed etc. on one hand, prevents the loss of drainage liquid on the other hand and influences the accurate observation and judgement to the drainage liquid amount and nature, and locking assembly can make drainage tube and connecting pipe connect firm, prevents the pipeline separation caused by patient activity, turning over or accidental pull etc., and the pipeline accidental separation can interrupt the negative pressure drainage, influences the treatment effect, need not rotate drainage tube and connecting pipe to realize the operation of the threaded locking of drainage tube and connecting pipe, improves the convenience of dismounting of drainage tube and connecting pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of negative pressure therapy devices, specifically a portable negative pressure therapy device. Background Technology

[0002] A negative pressure therapy device is a medical device that uses the principle of negative pressure to treat patients. By generating a negative pressure environment lower than atmospheric pressure, it produces specific effects on human tissues. This negative pressure effect can promote local blood circulation, improve tissue hypoxia, absorb exudate or secretions, and promote wound healing. It mainly includes a therapy device, a dressing assembly, and connecting tubes and drainage tubes that connect them.

[0003] Existing negative pressure therapy devices have significant design flaws in the connection between the drainage tube and the connecting tube. Patients inevitably move and turn over during treatment, and there is a possibility of accidental traction. Current connection methods cannot effectively handle these situations, easily leading to tube separation. Once the tube accidentally separates, negative pressure drainage is interrupted, forcing the treatment process to stop and severely impacting the treatment effect. To address the shortcomings of existing technology, we propose a portable negative pressure therapy device to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable negative pressure therapy device, comprising a negative pressure therapy instrument, the negative pressure therapy instrument consisting of a collection box and a negative pressure generator, the collection box being detachably installed at the bottom of the negative pressure generator, a dressing assembly connected to one end of the negative pressure therapy instrument, the dressing assembly being connected to the negative pressure therapy instrument via a drainage tube and a connecting tube, a connecting structure being provided between the drainage tube and the connecting tube, the connecting structure including a sealing component and a locking component, the sealing component and the locking component respectively sealing and locking the drainage tube and the connecting tube;

[0005] The sealing assembly includes a connector and a sealing gasket, which are respectively connected to the connecting pipe and the drain pipe. The locking assembly includes a threaded pipe and a threaded cylinder, which are respectively connected to the connecting pipe and the drain pipe. The threaded pipe is slidably sleeved on the outer peripheral wall of the connecting pipe.

[0006] Preferably, one end of the drainage tube is fixedly connected to the collection box, and the dressing assembly includes polyurethane foam, silicone gel, drainage hole and connecting suction cup. The silicone gel is adhered to the top of the polyurethane foam, and one end of the connecting tube is fixedly connected to the connecting suction cup.

[0007] Preferably, the drainage hole is formed on the top of the silicone gel, the connecting suction cup is attached to the top of the silicone gel, and the connecting suction cup is located at the drainage hole.

[0008] Preferably, a sealing cylinder is fixedly sleeved on the outer peripheral wall of the end of the drainage tube, the sealing gasket is fixedly installed inside the sealing cylinder, the connector is inserted into the inside of the drainage tube, and a sealing ring is fixedly sleeved on the outer peripheral wall of the end of the connecting tube, the sealing ring being inserted into the inside of the sealing cylinder.

[0009] Preferably, a fixing plate is fixedly sleeved on the outer peripheral wall of the drainage tube, the threaded cylinder is fixedly installed on the outer wall of the fixing plate, and a first limiting plate and a second limiting plate are fixedly sleeved on the outer peripheral wall of the connecting tube.

[0010] Preferably, the outer peripheral wall of the connecting pipe is slidably fitted with an mounting plate, the mounting plate being located between the first limiting plate and the second limiting plate, and the threaded pipe is threadedly connected inside the threaded cylinder.

[0011] Preferably, the threaded tube is fixedly installed on one side of the outer wall of the mounting plate, and a drive cylinder is fixedly connected to the other side of the outer wall of the mounting plate.

[0012] Preferably, a second threaded component is fixedly installed at the bottom of the negative pressure generator, and a first threaded component is fixedly installed at the top of the collection box. The first threaded component is threaded onto the outer peripheral wall of the second threaded component, and a one-way valve is fixedly installed at the bottom of the first threaded component.

[0013] This utility model discloses a portable negative pressure therapy device, which has the following beneficial effects: The portable negative pressure therapy device, by setting a sealing component at the connection end of the drainage tube and the connecting tube, can prevent outside air from entering the system, maintain a stable negative pressure state, and prevent drainage fluid from overflowing from the connection point. This prevents contamination of the surrounding environment, patient clothing, bed, etc., and also prevents drainage fluid loss from affecting the accurate observation and judgment of the amount and nature of the drainage fluid. The locking component ensures a secure connection between the drainage tube and the connecting tube, preventing the tube from separating due to patient movement, turning over, or accidental pulling. Accidental separation of the tube would interrupt negative pressure drainage and affect the treatment effect. The device allows for thread locking of the drainage tube and the connecting tube without rotating them, improving the ease of assembly and disassembly of the drainage tube and the connecting tube. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a schematic diagram of the connection structure between the collection box and the drainage tube of this utility model;

[0017] Figure 3 This is a schematic diagram of the exploded structure of the dressing assembly of this utility model;

[0018] Figure 4 This is an internal sectional view of the connection between the drainage tube and the connecting tube of this utility model;

[0019] Figure 5 This is a schematic diagram of the exploded structure of the threaded pipe and threaded cylinder of this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure between the drainage tube and the connecting tube of this utility model;

[0021] Figure 7 This is an exploded cross-sectional view of the drainage tube and connecting tube of this utility model;

[0022] Figure 8 This is a schematic diagram of the exploded structure of the negative pressure generator and collection box of this utility model;

[0023] Figure 9 This is a schematic diagram of the connection structure between the first threaded cylinder and the one-way valve of this utility model.

[0024] In the diagram: 1. Negative pressure therapy device; 101. Collection box; 1011. First threaded component; 1012. One-way valve; 102. Negative pressure generator; 1021. Second threaded component; 2. Dressing assembly; 201. Polyurethane foam; 202. Silicone gel; 203. Drainage hole; 204. Connecting suction cup; 3. Drainage tube; 4. Connecting tube; 5. Connecting structure; 6. Sealing assembly; 601. Connector; 6011. Sealing ring; 602. Sealing gasket; 6021. Sealing cylinder; 7. Locking assembly; 701. Threaded tube; 7011. Mounting plate; 7012. Drive cylinder; 7013. First limiting plate; 7014. Second limiting plate; 702. Threaded cylinder; 7021. Fixing plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model discloses a portable negative pressure therapy device.

[0028] According to the appendix Figures 1-9 As shown, the device includes a negative pressure therapy device 1, which consists of a collection box 101 and a negative pressure generator 102. The collection box 101 is detachably installed at the bottom of the negative pressure generator 102. One end of the negative pressure therapy device 1 is connected to a dressing assembly 2. The dressing assembly 2 and the negative pressure therapy device 1 are connected by a drainage tube 3 and a connecting tube 4. A connecting structure 5 is provided between the drainage tube 3 and the connecting tube 4. The connecting structure 5 includes a sealing assembly 6 and a locking assembly 7, which respectively seal and lock the drainage tube 3 and the connecting tube 4. In use, the collection box 101 is first connected to the negative pressure therapy device 1. Then, the drainage tube 3 is connected to the connecting tube 4 at the dressing assembly 2 through the connecting structure 5 to ensure the firmness of the connection between the drainage tube 3 and the connecting tube 4. Finally, polyurethane foam 201 is applied to the patient's affected area using silicone gel 202. By setting both silicone gel 202 and polyurethane foam 201 to have good biocompatibility, they generally do not cause immune or allergic reactions in patients, reducing irritation to the affected area and surrounding tissues, lowering the risk of adverse reactions, and making it safer and more comfortable for patients to use. Adjust the pressure value of the negative pressure therapy device 1 required for treatment, start the negative pressure therapy device 1, and the equipment starts to operate. Through negative pressure suction, the wound can heal faster and effectively remove exudates such as blood, pus, and tissue fluid from the wound surface, reducing the environment for bacterial growth and lowering the risk of wound infection. The suction waste liquid is collected inside the collection box 101 through the connecting tube 4 and the drainage tube 3. Silicone gel 202 and polyurethane foam 201 have good adhesion and flexibility, which can closely fit the patient's affected area and adapt well to the irregular shape of the affected area.

[0029] The sealing assembly 6 includes a connector 601 and a sealing gasket 602, which are respectively connected to the connecting pipe 4 and the drainage pipe 3. The locking assembly 7 includes a threaded pipe 701 and a threaded cylinder 702, which are respectively connected to the connecting pipe 4 and the drainage pipe 3. The threaded pipe 701 is slidably sleeved on the outer peripheral wall of the connecting pipe 4. During use, the connection structure 5 set between the connecting pipe 4 and the drainage pipe 3 can seal and lock the connection end between the drainage pipe 3 and the connecting pipe 4.

[0030] One end of the drainage tube 3 is fixedly connected to the collection box 101. The dressing assembly 2 includes polyurethane foam 201, silicone gel 202, drainage hole 203, and connecting suction cup 204. The drainage hole 203 is a through hole and is set through the polyurethane foam 201. The drainage hole 203, in conjunction with the negative pressure, can effectively prevent various exudates absorbed by the polyurethane foam 201 from accumulating on the polyurethane foam 201 and causing it to be unable to drain. The silicone gel 202 is pasted on the top of the polyurethane foam 201. One end of the connecting tube 4 is fixedly connected to the connecting suction cup 204. By inserting the connector 601 into the drainage tube 3 and inserting the sealing ring 6011 into the sealing cylinder 6021, One end of the sealing ring 6011 abuts against the sealing gasket 602, thereby sealing the connection between the drainage tube 3 and the connecting tube 4 through the sealing gasket 602. This prevents outside air from entering the system, maintains a stable negative pressure state, and ensures that the negative pressure therapy device 1 effectively attracts wound exudate, such as blood and pus, creating favorable conditions for wound healing. It also prevents poor sealing, where air entry would reduce the negative pressure, affecting the drainage effect and delaying wound healing. At the same time, it prevents drainage fluid from overflowing from the connection, thus preventing contamination of the surrounding environment, patient clothing, and bedding, and preventing drainage fluid loss from affecting the accurate observation and judgment of the amount and nature of the drainage fluid, which is crucial for understanding the wound recovery status.

[0031] A drainage hole 203 is located at the top of the silicone gel 202. A connecting suction cup 204 is attached to the top of the silicone gel 202 and positioned at the drainage hole 203. A sealing cylinder 6021 is fixedly sleeved on the outer peripheral wall of the end of the drainage tube 3. A sealing gasket 602 is fixedly installed inside the sealing cylinder 6021. A connector 601 is inserted into the inside of the drainage tube 3. A sealing ring 6011 is fixedly sleeved on the outer peripheral wall of the end of the connecting tube 4 and inserted into the sealing cylinder 6021. The connecting tube 4 is lifted, and the connector 601 at one end of the connecting tube 4 is aligned with one end of the drainage tube 3 and inserted inside, thus connecting the drainage tube 3 and the connecting tube 4. At this point, the drainage tube 3 and the connecting tube 4 are not yet locked. The threaded tube 701 is away from the threaded cylinder 702. (See attached diagram for details.) Figure 5 Finally, the locking component 7 locks the connected drainage tube 3 and connecting tube 4 to ensure a secure connection and prevent separation of the tubes due to patient movement, turning over, or accidental pulling. Accidental separation of the tubes would interrupt negative pressure drainage, affecting the treatment effect and potentially exposing the wound, increasing the risk of infection. This also ensures that the connection is fixed in place, preventing the tubes from shifting, twisting, or kinking, maintaining the patency of the drainage tube 3, and ensuring smooth drainage. Shifting, twisting, or kinking of the tubes would obstruct the flow of drainage fluid, leading to poor drainage and affecting wound healing.

[0032] A fixing plate 7021 is fixedly sleeved on the outer peripheral wall of the drainage tube 3. The threaded cylinder 702 is fixedly installed on the outer wall of the fixing plate 7021. The outer peripheral wall of the connecting tube 4 is fixedly sleeved with a first limiting plate 7013 and a second limiting plate 7014. By rotating and pushing the drive cylinder 7012, the mounting plate 7011 that is attached to the first limiting plate 7013 slides to the side of the second limiting plate 7014, thereby driving the threaded tube 701 to be threadedly connected inside the threaded cylinder 702. This achieves the locking of the connected drainage tube 3 and connecting tube 4, improves the speed of locking, and prevents the drainage tube 3 and connecting tube 4 from separating under external force.

[0033] A mounting plate 7011 is slidably sleeved on the outer peripheral wall of the connecting pipe 4. The mounting plate 7011 is located between the first limiting plate 7013 and the second limiting plate 7014. A threaded pipe 701 is threadedly connected to the inside of a threaded cylinder 702. The threaded pipe 701 is fixedly installed on one side of the outer wall of the mounting plate 7011. A drive cylinder 7012 is fixedly connected to the other side of the outer wall of the mounting plate 7011. It should be noted that when the threaded pipe 701 and the threaded cylinder 702 are separated, the mounting plate 7011 is attached to the inner wall of the first limiting plate 7013. For details, please refer to the appendix. Figure 7 With appendix Figure 5 After the threaded cylinder 702 is connected to the threaded tube 701, the mounting plate 7011 is attached to the inner wall of the second limiting plate 7014. See the attached document for details. Figure 4 The threaded locking operation of the drainage tube 3 and the connecting tube 4 can be achieved without rotating the drainage tube 3 and the connecting tube 4, which improves the ease of disassembly and assembly of the drainage tube 3 and the connecting tube 4.

[0034] A second threaded component 1021 is fixedly installed at the bottom of the negative pressure generator 102, and a first threaded component 1011 is fixedly installed at the top of the collection box 101. The first threaded component 1011 is threaded onto the outer peripheral wall of the second threaded component 1021, and a one-way valve 1012 is fixedly installed at the bottom of the first threaded component 1011. The two sets of threaded components are connected through each other, and the first threaded component 1011 and the one-way valve 1012 are also connected through each other. It should be noted that the negative pressure generator 102 and the collection box 101 are sealed and connected by the two sets of threaded components. By aligning the two sets of threaded components and rotating the collection box 101, the negative pressure generator 102 and the collection box 101 can be rotated and fixedly connected. Furthermore, the bottom end of the first threaded component 1011 is connected to the one-way valve 1012. The one-way valve 1012 has the advantages of strengthening the sealing and preventing leakage, and can prevent the waste liquid collected inside the collection box 101 from flowing back. The one-way valve 1012 is an existing structure and will not be described in detail here.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable negative pressure therapy device, comprising a negative pressure therapy instrument (1), wherein the negative pressure therapy instrument (1) is composed of a collection box (101) and a negative pressure generator (102), the collection box (101) being detachably installed at the bottom of the negative pressure generator (102), and a dressing assembly (2) being connected to one end of the negative pressure therapy instrument (1), the dressing assembly (2) being connected to the negative pressure therapy instrument (1) via a drainage tube (3) and a connecting tube (4), characterized in that: A connection structure (5) is provided between the drainage tube (3) and the connecting tube (4). The connection structure (5) includes a sealing component (6) and a locking component (7). The sealing component (6) and the locking component (7) respectively seal and lock the drainage tube (3) and the connecting tube (4). The sealing assembly (6) includes a connector (601) and a sealing gasket (602), which are respectively connected to the connecting pipe (4) and the drainage pipe (3). The locking assembly (7) includes a threaded pipe (701) and a threaded cylinder (702), which are respectively connected to the connecting pipe (4) and the drainage pipe (3). The threaded pipe (701) is slidably sleeved on the outer peripheral wall of the connecting pipe (4).

2. The portable negative pressure therapy device according to claim 1, characterized in that: One end of the drainage tube (3) is fixedly connected to the collection box (101). The dressing assembly (2) includes polyurethane foam (201), silicone gel (202), drainage hole (203) and connecting suction cup (204). The silicone gel (202) is pasted on the top of the polyurethane foam (201). One end of the connecting tube (4) is fixedly connected to the connecting suction cup (204).

3. A portable negative pressure therapy device according to claim 2, characterized in that: The drainage hole (203) is opened on the top of the silicone gel (202), and the connecting suction cup (204) is attached to the top of the silicone gel (202). The connecting suction cup (204) is located at the drainage hole (203).

4. A portable negative pressure therapy device according to claim 3, characterized in that: A sealing cylinder (6021) is fixedly sleeved on the outer peripheral wall of the end of the drainage tube (3), and the sealing gasket (602) is fixedly installed inside the sealing cylinder (6021). The connector (601) is inserted into the drainage tube (3). A sealing ring (6011) is fixedly sleeved on the outer peripheral wall of the end of the connecting tube (4), and the sealing ring (6011) is inserted into the sealing cylinder (6021).

5. A portable negative pressure therapy device according to claim 4, characterized in that: The outer peripheral wall of the drainage tube (3) is fixedly sleeved with a fixing plate (7021), the threaded cylinder (702) is fixedly installed on the outer wall of the fixing plate (7021), and the outer peripheral wall of the connecting tube (4) is fixedly sleeved with a first limiting plate (7013) and a second limiting plate (7014).

6. A portable negative pressure therapy device according to claim 1, characterized in that: The outer peripheral wall of the connecting pipe (4) is slidably sleeved with an installation plate (7011). The installation plate (7011) is located between the first limiting plate (7013) and the second limiting plate (7014). The threaded pipe (701) is threadedly connected to the inside of the threaded cylinder (702).

7. A portable negative pressure therapy device according to claim 1, characterized in that: The threaded tube (701) is fixedly installed on one side of the outer wall of the mounting plate (7011), and the drive cylinder (7012) is fixedly connected to the other side of the outer wall of the mounting plate (7011).

8. A portable negative pressure therapy device according to claim 1, characterized in that: The bottom of the negative pressure generator (102) is fixedly installed with a second threaded component (1021), the top of the collection box (101) is fixedly installed with a first threaded component (1011), the first threaded component (1011) is threadedly sleeved on the outer peripheral wall of the second threaded component (1021), and the bottom of the first threaded component (1011) is fixedly installed with a one-way valve (1012).

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