Negative pressure drainage device

Abstract

The utility model relates to a negative pressure drainage device, including a sponge dressing, a drainage tube and a flushing tube; the sponge dressing is constructed as a cylindrical structure, and one end of the drainage tube and the flushing tube are inserted into the interior of the dressing unit, the drainage tube is provided with a drainage hole, and the flushing tube is provided with a flushing hole, the drainage hole is used to converge the liquid in the sponge dressing into the drainage tube, so as to be led out through the drainage tube, and the flushing tube is provided with a flushing hole, and the flushing hole is used to divert the flushing liquid in the flushing tube into the sponge dressing. The utility model sets the sponge dressing as a cylindrical structure, which is suitable for cavity wounds, facilitates the truncated cutting of the sponge dressing, improves the matching degree between the sponge dressing and the wound, and improves the treatment effect, and the cylindrical structure design of the sponge dressing avoids secondary physical damage to the body tissue.

Description

Technical Field

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

[0002] Negative pressure wound therapy mainly uses the principle of negative pressure suction, puts the sponge into the wound area of ​​the patient, uses surgical film to close the open wound, generates a certain negative pressure by connecting to the negative pressure source, and acts on the wound after debridement through the drainage tube and sponge, thereby achieving negative pressure drainage therapy. The negative pressure sponges currently on the market are all in block or square strip shape. They are large in size and have obvious edges and corners, which are not conducive to the use of cavity wounds, and the edges and corners are easy to cause secondary physical damage to the body. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the sponge dressing in the prior art is inconvenient to treat cavity wounds and is easy to cause secondary physical damage to body tissues.

[0004] In order to solve the problems existing in the prior art, a negative pressure drainage device is disclosed, which includes a sponge dressing, a drainage tube and a flushing tube; the sponge dressing is constructed as a cylindrical structure, and one end of the drainage tube and the flushing tube are inserted into the interior of the dressing unit, the drainage tube is provided with a drainage hole, and the flushing tube is provided with a flushing hole, the drainage hole is used to converge the liquid in the sponge dressing into the drainage tube so as to be led out through the drainage tube, and the flushing tube is provided with a flushing hole, and the flushing hole is used to divert the flushing liquid in the flushing tube into the sponge dressing.

[0005] In an implementable solution, the flushing tube is at least partially sleeved in the drainage tube, and another portion of the flushing tube protrudes from the outside of the drainage tube.

[0006] In an implementable solution, the flushing tube includes a first end and a second end, the first end is located in the sponge dressing, and the second end extends out of the sponge dressing and is connected to a flushing tube connector.

[0007] In an implementable solution, the first end portion is sleeved in the drainage tube.

[0008] In yet another feasible solution, the first end portion protrudes from the outside of the drainage tube.

[0009] In an implementable solution, the first end portion is retracted into the drainage tube or the first end portion extends out of the end portion of the drainage tube.

[0010] In an implementable scheme, the flushing tube includes a first tube segment, a second tube segment, a third tube segment and a fourth tube segment connected in sequence, the first tube segment and the third tube segment are both located in the drainage tube, the second tube segment and the fourth tube segment both protrude from the outside of the drainage tube, the first end is the end of the first tube segment, the first tube segment and the second tube segment are located in the sponge dressing, the second tube segment is a straight tube, and the third tube segment is a curved structure.

[0011] In yet another feasible solution, the flushing tube and the drainage tube are spaced apart in the dressing unit.

[0012] Furthermore: the sponge dressing is made of polyvinyl alcohol sponge, polyurethane sponge or polypropylene sponge.

[0013] Furthermore, a flushing pipe cap is provided on the flushing pipe joint.

[0014] The negative pressure drainage device of this scheme includes a sponge dressing, a drainage tube and a flushing tube; the sponge dressing is constructed into a cylindrical structure, and one end of each of the drainage tube and the flushing tube is inserted into the interior of the dressing unit, the drainage tube is provided with a drainage hole, and the flushing tube is provided with a flushing hole, and the drainage hole is used to converge the liquid in the sponge dressing into the drainage tube so as to be led out through the drainage tube, and the flushing tube is provided with a flushing hole, and the flushing hole is used to divert the flushing liquid in the flushing tube into the sponge dressing. The utility model is adapted to cavity wounds by setting the sponge dressing into a cylindrical structure, which facilitates the truncated cutting of the sponge dressing, improves the matching degree between the sponge dressing and the wound, and improves the treatment effect. The cylindrical structure design of the sponge dressing avoids secondary physical damage to the body tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0016] Figure 1 It is a structural schematic diagram of the negative pressure drainage device described in the utility model;

[0017] Figure 2 It is a schematic diagram of the relationship between the drainage tube and the flushing tube of the negative pressure drainage device of the utility model;

[0018] Figure 3 This is another schematic diagram of the relationship between the drainage tube and the flushing tube of the negative pressure drainage device of the utility model;

[0019] Figure 4 This is another schematic diagram of the relationship between the drainage tube and the flushing tube of the negative pressure drainage device of the utility model;

[0020] Figure 5 This is another schematic diagram of the relationship between the drainage tube and the flushing tube of the negative pressure drainage device of the utility model;

[0021] Figure 6 This is another schematic diagram of the relationship between the drainage tube and the flushing tube of the negative pressure drainage device of the utility model;

[0022] In the figure: 1-sponge dressing, 2-drainage tube, 21-drainage hole, 3-flushing tube, 31-flushing hole, 32-first end, 33-second end, 34-first pipe section, 35-second pipe section, 36-third pipe section, 37-fourth pipe section, 4-flushing pipe joint, 41-flushing pipe cap. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "inner", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here.

[0025] In order to solve the problems existing in the prior art, the present application provides a negative pressure drainage device. Specifically, Figures 1 to 4As shown, the negative pressure drainage device includes a sponge dressing 1, a drainage tube 2 and a flushing tube 3. The sponge dressing 1 is constructed as a cylindrical structure. One end of the drainage tube 2 and the flushing tube 3 are inserted into the interior of the sponge 1. The drainage tube 2 is provided with a drainage hole 21, and the flushing tube 3 is provided with a flushing hole 31. The drainage hole 21 is used to converge the liquid in the sponge dressing 1 into the drainage tube 2 so as to be led out through the drainage tube 2. The flushing tube 3 is provided with a flushing hole 31, and the flushing hole 31 is used to divert the flushing liquid in the flushing tube 3 to the sponge dressing 1.

[0026] Specifically, a receiving cavity may be provided in the sponge dressing 1, and the drainage tube 2 and the flushing tube 3 are received in the receiving cavity to achieve insertion into the sponge dressing 1. It is understandable that the drainage tube 2 and the flushing tube 3 can move along the length direction of the sponge dressing 1 in the sponge dressing 1 under the action of external force, so as to achieve insertion of the drainage tube 2 and the flushing tube 3 into the sponge dressing 1 for a certain distance or withdrawal of the drainage tube 2 and the flushing tube 3 from the sponge dressing 1 for a certain distance.

[0027] When the negative pressure drainage device is in use, the length of the drainage tube 2 and the flushing tube 3 inserted into the sponge dressing 1 can be adjusted based on the length of the cavity wound. For example, the drainage tube 2 and the flushing tube 3 can be gently pulled out to a suitable length, and then the excess sponge can be cut off, which is easy to operate. The utility model designs the sponge dressing 1 as a cylindrical structure. The uniform slender strip design facilitates entry into a cavity with a small entrance and a deep length. The negative pressure is evenly transmitted, which promotes the closure of the entire cavity and reduces the requirements for the operator; and the overall arc design, compared with the angular design of the transmission, contacts the arc at the wound, reducing the physical stimulation of secondary damage to the body tissue. It can be understood that the cavity wound mentioned in this example can refer to a wound with a shape similar to a long strip, a longer length but a narrower width.

[0028] Further, the flushing tube 3 is at least partially sleeved in the drainage tube 2, and another part of the flushing tube 3 protrudes from the outside of the drainage tube 2. Specifically, the flushing tube 3 includes a first end 32 and a second end 33, the first end 32 is located in the sponge dressing 1, and the second end 33 extends out of the sponge dressing 1 and is connected to the flushing tube connector 4.

[0029] In one feasible solution, Figure 2As shown, the flushing tube 3 includes a first tube segment 34, a second tube segment 35, a third tube segment 36 and a fourth tube segment 37 connected in sequence, the first tube segment 34 and the third tube segment 36 are both located in the drainage tube 2, the second tube segment 35 and the fourth tube segment 37 are both protruding from the outside of the drainage tube 2, and the first end 32 is the end of the first tube segment 34. In this example, the second tube segment 35 is located in the sponge dressing 1, and a plurality of flushing holes 31 are provided on the second tube segment 35. It can be understood that by protruding the second tube segment 35 located in the sponge dressing 1 from the outside of the drainage tube 2 and providing a plurality of flushing holes 31 on the second tube segment 35, the flushing liquid can be contacted with the multi-porous position of the sponge dressing 1, the contact area between the flushing liquid and the sponge dressing 1 is increased, and the flushing effect of the sponge dressing 1 is improved. Further, in this example, the fourth tube segment 37 extends out of the sponge dressing 1. The fourth pipe section 37 is connected to a flushing pipe joint 4 at one end protruding from the drainage tube 2, and a flushing pipe cap 41 is arranged on the flushing pipe joint 4. It can be understood that the flushing hole 31 on the second pipe section 35 is only a preferred embodiment. In other feasible embodiments, multiple flushing holes 31 can also be opened on the first pipe section 34. By opening the flushing holes 31 on the first pipe section 34, the drainage tube 2 can be cleaned together, reducing the infection caused by the liquid confluence in the drainage tube 2 to the traumatic wound, and improving the healing effect. Furthermore, the flushing pipe cap 41 plays a sealing role when the flushing function is not used, which can effectively prevent external bacteria, dust, dirt and other substances from entering the flushing pipe interface.

[0030] It can be understood that the flushing tube 3 is divided into four sections and is arranged between the flushing tube 3 and the drainage tube 2 as follows: Figure 2 The position relationship shown is only a preferred implementation. In other feasible solutions, it can also be as follows Figure 3 As shown, the flushing tube 3 is divided into four sections. At this time, the first end 32 is used as the end of the first tube section 34, and the first end 32 is extended out of the end of the drainage tube 2.

[0031] Furthermore, in other feasible solutions, the flushing pipe 3 may also be divided into: Figure 4 The first tube segment 34, the second tube segment 35 and the third tube segment 36 are connected in sequence. At this time, the first tube segment 34 is located in the sponge dressing 1 and protrudes from the drainage tube 2, the second tube segment 35 is located in the drainage tube 2, and the third tube segment 36 protrudes from the outside of the drainage tube 2. It can be understood that in this example, a plurality of flushing holes 31 can be opened on the first tube segment 34 to flush the sponge dressing 1, and a plurality of flushing holes 31 can also be opened on the second tube segment 35 at the same time to flush the drainage tube 2.

[0032] Furthermore, in other feasible solutions, the flushing pipe 3 may also be divided into: Figure 5The first tube segment 34 and the second tube segment 35 are shown in FIG. 1 . At this time, the first tube segment 34 is located in the sponge dressing 1, and the first tube segment 34 is located in the drainage tube 2, and the first end 32 of the first tube segment 34 is retracted at the end of the drainage tube 2. Alternatively, it can be as follows Figure 6 In the structure shown, the first end 32 of the first pipe section 34 extends out of the end of the drainage tube 2.

[0033] It can be understood that the above examples are all illustrative examples in which the flushing tube 3 is at least partially sleeved on the drainage tube 2. In actual applications, the flushing tube 3 can also be spaced apart from the drainage tube 2.

[0034] The following is an explanation of the application method of the negative pressure drainage device:

[0035] When the patient needs to be treated at the wound site, first, the wound surface of the patient is thoroughly cleaned, and the negative pressure drainage device is directly selected for overall use. Then, based on the size of the wound cavity, the drainage tube 2 and the flushing tube 3 are pushed or pulled out to the appropriate position of the sponge dressing 1, and then the excess sponge dressing 1 is removed, and then covered with a biological transparent adhesive film, one end of the drainage tube 2 is connected to the corresponding interface on the drainage bag or drainage tank of the hospital negative pressure drainage device, and the negative pressure drainage device is turned on for drainage. During the drainage process, when the wound surface needs to be flushed and cleaned, the negative pressure drainage device is closed, the flushing tube cap 41 is opened, and the flushing liquid is injected with a syringe. The flushing liquid enters the sponge dressing 1 through the flushing tube 3 to achieve the flushing effect. It can be understood that the flushing liquid here can be physiological saline, antibacterial solution or other medical liquids. After flushing, the flushing tube cap 41 is closed, and the negative pressure drainage device switch is turned on again to perform drainage treatment. Furthermore, the drainage tube 2 is provided with a drainage hole 21 on the tube section located in the sponge dressing 1, and the flushing tube 3 is provided with a flushing hole 31 on the tube section located in the sponge dressing 1. The liquid accumulated in the sponge dressing 1 can flow into the drainage tube 2 through the drainage hole 21, and then be sucked away by the connected drainage bag or drainage can, and the flushing liquid enters the sponge dressing 1 through the flushing hole 31 on the flushing tube 3. By providing the drainage hole 21, the collection area of ​​the liquid to be drained can be increased and the collection speed can be improved. By providing the flushing hole 31, the synchronous flushing of the drainage tube 2 can be achieved.

[0036] Preferably, in the above two embodiments, the drainage hole 21 and the flushing hole 31 can be circular holes, which can effectively guide the flow of liquid and ensure a smooth drainage process and flushing process.

[0037] It is understandable that the drainage hole 21 and the flushing hole 31 may also be other holes such as elliptical holes, cross-shaped holes, etc., which can allow liquid to pass quickly and prevent liquid accumulation.

[0038] Preferably, in the above two embodiments, the sponge dressing 1 is a polyethylene sponge, which has good water absorption and air permeability, can quickly absorb a large amount of liquid, and allows air circulation around the wound, which helps to effectively remove wound exudate, blood or other secretions, helps to supply oxygen to the wound surface and maintain a moist environment, and promotes wound healing.

[0039] It is understandable that the sponge dressing 1 can also be a polyvinyl alcohol sponge, a polyurethane sponge, a polypropylene sponge or the like having the same effect as the polyvinyl alcohol sponge.

[0040] Furthermore, the connection between the drainage tube 2 and the flushing tube 3 and the sponge dressing 1 is detachable, so as to facilitate classification and recycling after use.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A negative pressure drainage device, characterized in that: The device comprises a sponge dressing (1), a drainage tube (2) and a flushing tube (3); the sponge dressing (1) is constructed as a cylindrical structure, one end of each of the drainage tube (2) and the flushing tube (3) is inserted into the interior of the dressing unit (11), the drainage tube (2) is provided with a drainage hole (21), the drainage hole (21) is used to converge the liquid in the sponge dressing (1) into the drainage tube (2) so as to be drawn out through the drainage tube (2), and the flushing tube (3) is provided with a flushing hole (31), the flushing hole (31) is used to divert the flushing liquid in the flushing tube (3) into the sponge dressing (1).

2. The negative pressure drainage device according to claim 1, characterized in that: The flushing tube (3) is at least partially sleeved in the drainage tube (2), and another portion of the flushing tube (3) protrudes from the outside of the drainage tube (2).

3. The negative pressure drainage device according to claim 2, characterized in that: The flushing tube (3) comprises a first end (32) and a second end (33), wherein the first end (32) is located in the sponge dressing (1), and the second end (33) extends out of the sponge dressing (1) and is connected to a flushing tube connector (4).

4. The negative pressure drainage device according to claim 3, characterized in that: The first end portion (32) is sleeved in the drainage tube (2).

5. The negative pressure drainage device according to claim 3, characterized in that: The first end portion (32) protrudes from the outside of the drainage tube (2).

6. The negative pressure drainage device according to claim 4, characterized in that: The first end portion (32) is retracted into the drainage tube (2) or the first end portion (32) extends out of the end portion of the drainage tube (2).

7. The negative pressure drainage device according to claim 4, characterized in that: The flushing tube (3) comprises a first tube segment (34), a second tube segment (35), a third tube segment (36) and a fourth tube segment (37) which are connected in sequence; the first tube segment (34) and the third tube segment (36) are both located in the drainage tube (2); the second tube segment (35) and the fourth tube segment (37) are both protruding from the outside of the drainage tube (2); the first end portion (32) is the end portion of the first tube segment (34); the first tube segment (34) and the second tube segment (35) are located in the sponge dressing (1); the second tube segment (35) is a straight tube; and the third tube segment (36) is a curved structure.

8. The negative pressure drainage device according to claim 1, characterized in that: The flushing tube (3) and the drainage tube (2) are arranged at intervals in the dressing unit (11).

9. The negative pressure drainage device according to claim 1, characterized in that: The material of the sponge dressing (1) is polyvinyl alcohol sponge, polyurethane sponge or polypropylene sponge.

10. The negative pressure drainage device according to claim 3, characterized in that: The flushing pipe joint (4) is provided with a flushing pipe cap (41).

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