Closed negative pressure device for wound treatment

Abstract

The utility model relates to the field of negative pressure treatment equipment, in particular to a closed negative pressure device for wound treatment. Comprising a drainage tube, a flushing part and sponge arranged over a wound surface in an attached mode. The flushing part comprises a flushing pipe with one end provided with a flushing fluid access head, and a plurality of fluid outlet side holes are formed in the side wall of the other end of the flushing pipe. A plurality of liquid suction side holes are formed in the side wall of one end of the drainage tube, and the section, provided with the liquid suction side holes, of the drainage tube and the section, provided with the liquid outlet side holes, of the flushing tube are arranged in the sponge side by side; the other end of the drainage tube is connected with a negative pressure tube communicated with a negative pressure source; a fixing pasting film used for sealing the periphery of the sponge and fixing the drainage tube, the flushing tube and the sponge is attached to the wound surface. The closed type negative pressure device has the advantages that the closed type negative pressure device provides a negative pressure type circulation supply treatment means for patients, and the whole device is compact, simple, efficient and reliable; the treatment and nursing intensity of medical staff is relieved, meanwhile, the treatment effect is guaranteed, and consumables and time cost for treatment are obviously reduced.

Description

Technical Field

[0001] The utility model relates to the field of negative pressure treatment equipment, in particular to a closed negative pressure device for wound treatment. Background Art

[0002] Chronic wounds refer to wounds that have not completely healed for a long time or have recurred repeatedly due to some reasons. Normally, the normal wound healing process includes stages such as coagulation, inflammation, proliferation and repair. However, the healing process of chronic wounds is disturbed by many factors, resulting in the inability of the wound to heal quickly.

[0003] The formation of chronic wounds can be caused by a variety of reasons, such as infection, ischemia, diabetes, immune system diseases, and drug side effects. Infection is one of the most common causes, because infection can cause the wound to continue to deteriorate and disrupt the normal healing process. Ischemia refers to insufficient blood supply around the wound, resulting in the wound not getting enough nutrients and oxygen, affecting healing. Diabetic patients are also prone to chronic wounds due to high blood sugar and nerve damage. Immune system diseases can lead to decreased immune function and delay wound healing. Certain drugs may also interfere with the wound repair process.

[0004] Treatments for chronic wounds include debridement, anti-infection, promotion of healing, and improvement of blood circulation. Debridement refers to the removal of necrotic tissue and contaminants to provide a clean environment for the wound. Anti-infection measures can prevent and treat infection and keep the wound clean. Methods to promote healing include the use of local dressings, growth factors, and physical therapy to accelerate the repair and regeneration of the wound. Improving blood circulation can increase the blood supply around the wound through medication or physical therapy to provide nutrients and oxygen.

[0005] However, the existing primary care chronic wound treatment has the following difficulties: 1. Primary care patients have poor living conditions and insufficient wound management concepts, which can easily lead to repeated infections during treatment and develop into refractory wounds; 2. The course of the disease is long and the cost is high; long-term circulation improvement requires on-site treatment by medical staff. Once the patient is unable to stay in the hospital for a long time or there is a shortage of medical staff, the existing wound circulation supply means will be difficult to solve the above problems. Summary of the invention

[0006] The technical problem to be solved by this technical solution is that the existing treatment methods for chronic wounds have the problems of high treatment costs and great difficulty in nursing and treatment by medical staff.

[0007] To achieve the above objectives, the present invention creates a technical solution: a closed negative pressure device for wound treatment, comprising a drainage tube, a flushing piece and a sponge fitted and arranged just above the wound; the flushing piece comprises a flushing tube with a flushing liquid inlet head at one end, and a plurality of liquid outlet side holes are provided on the side wall at the other end of the flushing tube; a plurality of liquid suction side holes are provided on the side wall at one end of the drainage tube, a section of the drainage tube with the liquid suction side holes and a section of the flushing tube with the liquid outlet side holes are arranged side by side in the sponge; the other end of the drainage tube is connected to a negative pressure tube connected to a negative pressure source; a fixing film is attached to the wound surface for closing the sponge on all sides and fixing the drainage tube, the flushing tube and the sponge.

[0008] The beneficial effects of this technical solution are: the closed negative pressure device provides patients with a negative pressure circulation supply treatment method, and the entire device is compact, simple, efficient and reliable; while reducing the intensity of treatment and nursing for medical staff, it also ensures the treatment effect and significantly reduces the consumables and time costs of treatment.

[0009] The technical problem to be solved by the improvement of this technical solution is that the flushing tube and the drainage tube are directly pressed on the healthy skin outside the wound surface by the fixed film, which is easy to cause damage to the skin for a long time.

[0010] To achieve the above objectives, the present invention creates an improved technical solution: the fixed film includes an upper covering film and a lower covering film; the upper covering film is attached to the top of the sponge, the lower covering film is folded and its two ends are respectively attached to the upper surface of one side of the wound and below the drainage tube and the flushing tube; one end of the upper covering film is attached to the drainage tube and the flushing tube and is arranged above a section of the outer side of the sponge, and one end of the upper covering film and the lower covering film are attached to and seal and fix the drainage tube and the flushing tube.

[0011] The beneficial effect of the improved technical solution is that a sandwich-type lower covering film is provided between the extended sections of the flushing tube and the drainage tube and the healthy skin; while achieving closed fixation, it also avoids the situation of crushing the normal skin.

[0012] The technical problems to be solved by the improvement of this technical solution are: the cost of materials used in the device and how to optimize the structure to avoid affecting the normal skin around the wound surface.

[0013] To achieve the above objectives, the present invention creates an improved technical solution: the thickness of the sponge is 2-3 cm, and the distance between its edge and the edge of the wound surface is no more than 0.5 cm.

[0014] The beneficial effect of the improved technical solution is: the structure of the sponge used to achieve circulation on the wound surface is optimized, which ensures the effect while reducing the cost of consumables and the impact on the surrounding normal skin during treatment.

[0015] The technical problem to be solved by the improvement of this technical solution is: if the patient has multiple wounds and the distances between them are far.

[0016] To achieve the above objectives, the present invention creates an improved technical solution: a connecting pipe is provided between the drainage tube and the negative pressure source, and the connecting pipe is a three-way or more connecting pipe member for connecting multiple drainage tubes.

[0017] The improved beneficial effect of the technical solution is that the same negative pressure source can be connected to multiple drainage tubes for fluid traction, and each wound surface can use an independent flushing tube, sponge and film. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0019] The text labels in the figure are as follows: 1. drainage tube; 2. flushing part; 3. connecting tube; 4. sponge; 5. fixed film; 6. negative pressure source; 7. wound surface; 11. side hole for liquid absorption; 21. flushing liquid access head; 22. flushing tube; 23. side hole for liquid outlet; 51. upper covering film; 52. lower covering film; 61. negative pressure tube. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0021] Embodiment 1:

[0022] A closed negative pressure device for wound treatment comprises a drainage tube 1, a flushing piece 2 and a sponge 4 fitted and arranged just above the wound surface 7; the flushing piece 2 comprises a flushing tube 22 with a flushing liquid inlet head 21 at one end, and a plurality of liquid outlet side holes 23 are provided on the side wall of the other end of the flushing tube 22; a plurality of liquid suction side holes 11 are provided on the side wall of one end of the drainage tube 1, a section of the drainage tube 1 with the liquid suction side holes 11 and a section of the flushing tube 22 with the liquid outlet side holes 23 are arranged side by side in the sponge 4; the other end of the drainage tube 1 is connected to a negative pressure tube 61 connected to a negative pressure source 6; a fixing film 5 is attached to the wound surface 7 for sealing the sponge 4 on all sides and fixing the drainage tube 1, the flushing tube 22 and the sponge 4.

[0023] Embodiment 2:

[0024] As a further optimization of the above embodiment: a closed negative pressure device for wound treatment, comprising a drainage tube 1, a flushing piece 2 and a sponge 4 fitted and arranged just above the wound surface 7; the flushing piece 2 comprises a flushing tube 22 with a flushing liquid inlet head 21 at one end, and a plurality of liquid outlet side holes 23 are provided on the side wall of the other end of the flushing tube 22; a plurality of liquid suction side holes 11 are provided on the side wall of one end of the drainage tube 1, a section of the drainage tube 1 with the liquid suction side holes 11 and a section of the flushing tube 22 with the liquid outlet side holes 23 are arranged side by side in the sponge 4; the other end of the drainage tube 1 is connected to a negative pressure tube 61 connected to a negative pressure source 6; a fixing film 5 is attached to the wound surface 7 for closing the sponge 4 on all sides and fixing the drainage tube 1, the flushing tube 22 and the sponge 4. The fixed film 5 includes an upper covering film 51 and a lower covering film 52; the upper covering film 51 is attached to the top of the sponge 4, and the lower covering film 52 is folded and has two ends respectively attached to the upper surface of one side of the wound surface 7 and below the drainage tube 1 and the flushing tube 22; one end of the upper covering film 51 is attached to the drainage tube 1 and the flushing tube 22 and is arranged above a section outside the sponge 4, and one end of the upper covering film 51 and the lower covering film 52 are attached to and seal and fix the drainage tube 1 and the flushing tube 22.

[0025] Embodiment 3:

[0026] As a further optimization of the above embodiment: a closed negative pressure device for wound treatment, comprising a drainage tube 1, a flushing member 2 and a sponge 4 fitted and arranged just above the wound surface 7; the flushing member 2 comprises a flushing tube 22 with a flushing liquid access head 21 at one end, and a plurality of liquid outlet side holes 23 are opened on the side wall of the other end of the flushing tube 22; a plurality of liquid suction side holes 11 are opened on the side wall of one end of the drainage tube 1, and a section of the drainage tube 1 with the liquid suction side holes 11 and a section of the flushing tube 22 with the liquid outlet side holes 23 are arranged side by side in the sponge 4; the other end of the drainage tube 1 is connected to a negative pressure tube 61 connected to a negative pressure source 6; a fixing film 5 for sealing the sponge 4 and fixing the drainage tube 1, the flushing tube 22 and the sponge 4 is attached to the wound surface 7. The thickness of the sponge 4 is 2-3 cm, and the distance between its edge and the edge of the wound surface does not exceed 0.5 cm.

[0027] Embodiment 4:

[0028] As a further optimization of the above embodiment: a closed negative pressure device for treating a wound surface 7, comprising a drainage tube 1, a flushing member 2 and a sponge 4 fitted and arranged just above the wound surface 7; the flushing member 2 comprises a flushing tube 22 with a flushing liquid access head 21 at one end, and a plurality of liquid outlet side holes 23 are provided on the side wall of the other end of the flushing tube 22; a plurality of liquid suction side holes 11 are provided on the side wall of one end of the drainage tube 1, and a section of the drainage tube 1 with the liquid suction side holes 11 and a section of the flushing tube 22 with the liquid outlet side holes 23 are arranged side by side in the sponge 4; the other end of the drainage tube 1 is connected to a negative pressure tube 61 connected to a negative pressure source 6; a fixing film 5 for sealing the sponge 4 and fixing the drainage tube 1, the flushing tube 22 and the sponge 4 is attached to the wound surface 7. A connecting tube 3 is provided between the drainage tube 1 and the negative pressure source 6, and the connecting tube 3 is a three-way or more connecting pipe member for connecting multiple drainage tubes 1.

[0029] When the device is used, a thin layer of gauze soaked with physiological saline is first applied to the wound surface, and then the saprophytic and muscle-regenerating medicine is applied on the surface of the gauze, and then the sponge 4 is covered. The sponge 4 is a medical sponge, and the fixed film 5 is a waterproof and breathable biological film; the flushing liquid access head 21 can be used to introduce liquid medicine or disinfected saline as needed, and the liquid in the flushing tube 22 is driven by the closed negative pressure, flows out from the liquid outlet side hole 23 and diffuses to the entire sponge 4, and then is applied on the wound surface 7; then the liquid flows into the drainage tube 1 from the liquid absorption side hole 11 and returns to the negative pressure source 6 to realize circulation.

[0030] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A closed negative pressure device for wound treatment, characterized in that: The invention comprises a drainage tube (1), a flushing part (2) and a sponge (4) arranged in a close relationship above a wound surface (7); the flushing part (2) comprises a flushing tube (22) having a flushing liquid inlet head (21) at one end, and a plurality of liquid outlet side holes (23) are provided on the side wall at the other end of the flushing tube (22); a plurality of liquid suction side holes (11) are provided on the side wall at one end of the drainage tube (1), and a section of the drainage tube (1) with the liquid suction side holes (11) and a section of the flushing tube (22) with the liquid outlet side holes (23) are arranged side by side in the sponge (4); the other end of the drainage tube (1) is connected to a negative pressure tube (61) connected to a negative pressure source (6); and a fixing film (5) is attached to the wound surface (7) for sealing the sponge (4) on all sides and fixing the drainage tube (1), the flushing tube (22) and the sponge (4).

2. A closed negative pressure device for wound treatment according to claim 1, characterized in that: The fixed film (5) comprises an upper film (51) and a lower film (52); the upper film (51) is attached to the top of the sponge (4); the lower film (52) is arranged in a folded shape and its two ends are respectively attached to the upper surface of one side of the wound surface (7) and below the drainage tube (1) and the flushing tube (22); one end of the upper film (51) is attached to the drainage tube (1) and the flushing tube (22) and is arranged above a section of the outer side of the sponge (4); one end of the upper film (51) and the lower film (52) are attached to and seal and fix the drainage tube (1) and the flushing tube (22).

3. A closed negative pressure device for wound treatment according to claim 1, characterized in that: The thickness of the sponge (4) is 2-3 cm, and the distance between its edge and the edge of the wound surface does not exceed 0.5 cm.

4. A closed negative pressure device for wound treatment according to claim 1, characterized in that: A connecting pipe (3) is provided between the drainage pipe (1) and the negative pressure source (6); the connecting pipe (3) is a three-way or higher connecting pipe member for connecting a plurality of drainage pipes (1).

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