Perianal negative pressure sealing drainage device
By designing a perianal negative pressure closed drainage device, the pad fits snugly against the buttocks, and the first drainage tube connects to the rectum, protecting the VSD dressing. This solves the problem of dressing fall-off and infection caused by irregular perianal incisions, achieving the effect of reducing the frequency of dressing changes and promoting healing.
Patent Information
- Application Number
- CN202422556673.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Postoperative incisions around the anus are irregular, and ordinary VSD dressings do not adhere well to the anus, making them prone to air leakage or falling off. Excrement can easily infect the wound, requiring frequent changes, which increases patient suffering and the workload of medical staff.
A perianal negative pressure closed drainage device is designed, including a first drainage tube, a pad, and a negative pressure closed drainage component. The pad unfolds to both sides to fit the buttocks. The first drainage tube is connected to the rectum. The negative pressure closed drainage component includes medical foam and VSD dressing. The pad protects the VSD dressing to prevent it from falling off. Excrement directly enters the drainage bag.
Reduce the chance of wound contamination, prevent VSD dressing from falling off, reduce the frequency of dressing changes, alleviate patient pain and medical staff workload, and promote wound healing.
Smart Images
Figure CN223601751U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field in general, specifically, it is a kind of perianal negative pressure closed drainage device. BACKGROUND
[0002] Vacuum sealing drainage (VSD) is applied medical foam material and timely drainage of wound purulent effusion and necrotic tissue and other harmful substances, using the semi-permeable adhesive film with biological valve to close the wound to isolate it from the outside world, to form a vacuum drainage system, by efficient drainage to provide relatively clean, micro-wet environment for wound, continuous mechanical traction microcirculation arteriovenous dilatation vascular stimulation capillary neogenesis, improve local microcirculation to induce wound tissue extracellular matrix formation, promote granulation tissue growth, greatly shorten healing time.
[0003] At present, after perianal operation, incision is contaminated incision, postoperative wound is large, exudate is much, and healing is slow, exudate of wound is sucked out in time by vacuum sealing drainage, infection can be controlled, and wound healing is promoted.But due to the irregularity of perianal incision, the ordinary VSD dressing is not stable in the perianal incision, especially the patient needs to exhaust and defecate activities, which can easily lead to VSD dressing leakage or falling off, and excrement is also easy to infect the wound, which is not conducive to wound healing, and VSD dressing needs to be frequently replaced, increasing the pain of patients and the workload of medical staff. UTILITY MODEL CONTENT
[0004] The application provides a perianal negative pressure closed drainage device to solve the above technical problems.
[0005] The application provides a perianal negative pressure closed drainage device, which comprises a first drainage tube, a protective pad and a negative pressure closed drainage assembly; one end of the first drainage tube is used for connecting a patient's rectum, and the other end is connected with a excrement drainage bag; the protective pad is arranged on the first drainage tube close to the position of the patient's anus, and the protective pad is expanded to both sides; the negative pressure closed drainage assembly is arranged on the protective pad.
[0006] According to some embodiments of the utility model, the negative pressure closed drainage assembly comprises medical foam, VSD dressing and a second drainage tube, the medical foam is filled in the patient's wound, the VSD dressing is arranged on the patient's wound, and one end of the second drainage tube is connected with the medical foam, and the other end is connected with a negative pressure bottle.
[0007] According to some embodiments of the utility model, the water inlet pipe is further provided, and one end of the water inlet pipe is connected with the medical foam.
[0008] According to some embodiments of the utility model, the upper surface of the pad is arc-shaped and fits the patient's buttocks.
[0009] According to some embodiments of the utility model, the pad is made of rubber.
[0010] According to some embodiments of the utility model, the first drainage tube is provided with an air bag at one end connected to the patient's rectum, and the air bag is connected to an inflator through an inflation pipeline.
[0011] According to some embodiments of the utility model, the inflation pipeline is partially built in the first drainage tube.
[0012] According to some embodiments of the utility model, the first drainage tube is tapered at one end connected to the patient's rectum.
[0013] According to some embodiments of the utility model, the first drainage tube is provided with an on-off valve at one end connected to the excrement drainage bag.
[0014] According to the above technical solution, the perianal negative pressure closed drainage device has the following advantages and positive effects: the pad is expanded to both sides, the pad is fitted to the skin of the buttocks, the anus is temporarily closed, the opportunity of wound pollution is reduced, the VSD dressing of the negative pressure closed drainage assembly is protected, the VSD dressing is prevented from falling off, the frequency of replacing the VSD dressing is reduced, the pain of the patient and the workload of the medical staff are reduced, the first drainage tube is connected to the rectum of the patient, the excrement of the patient is directly introduced into the excrement drainage bag through the first drainage tube, the excrement is prevented from infecting the wound, and the wound healing is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0016] Figure 1 is a structure schematic view of a perianal negative pressure closed drainage device disclosed by the embodiments of the present application;
[0017] Figure 2 is a partial enlarged schematic view of a perianal negative pressure closed drainage device disclosed by the embodiments of the present application;
[0018] Figure 3 is an end structure schematic view of a first drainage tube in a perianal negative pressure closed drainage device disclosed by the embodiments of the present application;
[0019] Figure 4Fig. 1 is a cross-sectional view of a first drainage tube of a perianal negative pressure closed drainage device according to an embodiment of the present application.
[0020] Explanation of reference signs:
[0021] 1, first drainage tube; 2, excrement drainage bag; 3, pad; 4, negative pressure closed drainage assembly; 40, medical foam; 41, VSD dressing; 42, second drainage tube; 43, negative pressure bottle; 44, water inlet pipe; 5, air bag; 6, inflation pipeline; 7, inflator; 8, on-off valve. DETAILED DESCRIPTION
[0022] The embodiments of the present application will be described in further detail below with reference to the accompanying drawings and embodiments. The following detailed description and drawings are provided to illustrate the principles of the present application by way of example only, and should not be taken in a limiting sense. The present application can be implemented in numerous ways, including but not limited to the particular embodiments described in this document. In this document, the terms "example" and "exemplary" mean "an instance of something" and "an example of something", respectively, and are not intended to refer to a key, representative, essential, or optimal embodiment.
[0023] The present application provides these embodiments in order to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.
[0024] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] In addition, "first", "second", and similar words used in the present application do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.
[0026] It should be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.
[0027] All the terms used in the present application have the same meaning as understood by those skilled in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that the terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined here.
[0028] The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the specification.
[0029] As Figure 1 shown, an embodiment of a perianal negative pressure closed drainage device comprises: a first drainage tube 1, a pad 3 and a negative pressure closed drainage assembly 4; one end of the first drainage tube 1 is used to connect the rectum of the patient, and the other end is connected to a excrement drainage bag 2; the pad 3 is arranged on the first drainage tube 1 near the position of the patient's anus, and the pad 3 is expanded to both sides; the negative pressure closed drainage assembly 4 is arranged on the pad 3. By expanding the pad 3 to both sides, the pad 3 is attached to the skin of the buttocks, temporarily seals the anus, reduces the opportunity for wound contamination, and at the same time, the pad 3 protects the VSD dressing 41 of the negative pressure closed drainage assembly 4, avoids the falling of the VSD dressing 41, reduces the frequency of replacing the VSD dressing 41, and reduces the pain of the patient and the workload of the medical staff. The first drainage tube 1 is connected to the rectum of the patient, so that the excrement generated by the patient directly enters the excrement drainage bag 2 through the first drainage tube 1, avoiding the infection of the wound by the excrement, and facilitating the healing of the wound.
[0030] As Figure 1 and Figure 2As shown in some embodiments of the utility model, the negative pressure closed drainage assembly 4 includes medical foam 40, VSD dressing 41 and second drainage tube 42, the medical foam 40 is filled in patient's wound, the VSD dressing 41 is laid on patient's wound, one end of the second drainage tube 42 leads into the medical foam 40, and the other end is connected with negative pressure bottle 43. The installation position of negative pressure closed drainage assembly 4 can be set according to the position of patient's wound, and the position of second drainage tube 42 on the pad 3 can be fixed or not fixed, which does not affect the overall structure and actual use, and a plurality of side holes are designed at one end of the medical foam 40 into which the second drainage tube 42 is embedded, and the VSD dressing 41 adopts semi-permeable adhesive film with biological valve. In use, the wound of the patient is first filled with the medical foam 40, and then the VSD dressing 41 is covered, and the second drainage tube 42 generates negative pressure under the action of the negative pressure bottle 43, so that the VSD dressing 41 forms negative pressure adsorption, thereby sealing the wound, and the semi-permeable adhesive film with biological valve is used to seal the wound to isolate it from the outside world, thereby forming a complete vacuum drainage system. By high-efficiency drainage, a relatively clean and slightly wet environment is provided for the wound, continuous mechanical stretching of microcirculation, dilation of arteriovenous vessels, stimulation of capillary neovascularization, improvement of local microcirculation, induction of extracellular matrix formation of wound tissue, promotion of granulation tissue growth, and great reduction of healing time.
[0031] As shown in some embodiments of the utility model, Figure 1 and Figure 2 As shown in some embodiments of the utility model, the water inlet pipe 44 leads into the medical foam 40 at one end. The water inlet pipe 44 can be in a closed state at ordinary times, and can be used to flush the wound of the patient by introducing medicine.
[0032] As shown in some embodiments of the utility model, Figure 1 As shown in some embodiments of the utility model, the upper surface of the pad 3 is an arc surface that fits the buttocks of the patient. The pad 3 adopts an arc design, which can better fit the shape of the buttocks of the patient to wrap the perianal skin. In use, the pad 3 can be trimmed according to the perianal wound condition, the pad 3 is attached to the perianal skin to temporarily seal the anus, reduces the opportunity of wound pollution, and at the same time, the pad 3 protects the VSD dressing 41 of the negative pressure closed drainage assembly 4, avoids the falling of the VSD dressing 41, reduces the frequency of replacing the VSD dressing 41, and reduces the pain of the patient and the workload of the medical staff.
[0033] In some embodiments of the utility model, the pad 3 adopts a rubber pad. The rubber pad is elastic at room temperature and can deform under external force, and can restore to the original state after the external force is removed. Not only can the rubber pad well protect the VSD dressing 41 to avoid the falling of the VSD dressing 41, but also will not make the patient feel hard and affect the feeling.
[0034] As shown in some embodiments of the utility model, Figure 1 and Figure 3As shown in some embodiments of the utility model, the first drainage tube 1 is used for connecting the rectum of a patient and is provided with a gasbag 5 at one end, and the gasbag 5 is connected with an inflator 7 through an inflation pipeline 6. In use, the first drainage tube 1 is inserted into the rectum of a patient, and the gasbag 5 is inflated by using the inflator 7 through the inflation pipeline 6, so that the gasbag 5 is inflated, and the inflated gasbag 5 increases in volume and blocks the gap between the first drainage tube 1 and the rectum, thereby avoiding leakage of excrement. After surgery, the gasbag 5 is deflated to facilitate the extraction of the first drainage tube 1. The inflator 7 includes but is not limited to an inflation balloon, an air pump, etc., and a one-way valve can be arranged on the inflator 7 to maintain the gas in the gasbag 5 and avoid leakage.
[0035] As shown in some embodiments of the utility model, Figure 1 , Figure 3 and Figure 4 , the inflation pipeline 6 is partially built in the first drainage tube 1. A partition can be arranged in the first drainage tube 1 to isolate a part of the space as the inflation pipeline 6, and the inflation pipeline 6 is partially built in the first drainage tube 1, which is beneficial to the insertion of the first drainage tube 1 into the anus of a patient in use, and avoids entanglement or space occupation caused by complex pipelines.
[0036] As shown in some embodiments of the utility model, Figure 3 , the first drainage tube 1 is tapered at one end for connecting the rectum. The tapered end facilitates the connection with the rectum and avoids scratching the rectum or inaccurate docking.
[0037] As shown in some embodiments of the utility model, Figure 1 , the first drainage tube 1 is connected with an excrement drainage bag 2 and is provided with an on-off valve 8 at one end. The on-off valve 8 can control the opening and closing of the first drainage tube 1, which is convenient for replacing the excrement drainage bag 2. Meanwhile, a gas outlet can be arranged on the excrement drainage bag 2 to avoid inflation of the excrement drainage bag 2 and affect use.
[0038] Thus, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.
[0039] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present application. In particular, each technical feature mentioned in each embodiment can be combined in any way as long as there is no structural conflict.
Claims
1. A perianal negative pressure closed drainage device, characterized in that, include: The first drainage tube (1) is used to connect one end to the patient's rectum and the other end to the excrement drainage bag (2); A pad (3) is placed on the first drainage tube (1) near the patient's anus, and the pad (3) is spread out to both sides; Negative pressure closed drainage component (4) is disposed on the pad (3).
2. The perianal negative pressure closed drainage device according to claim 1, characterized in that: The negative pressure closed drainage assembly (4) includes medical foam (40), VSD dressing (41) and a second drainage tube (42). The medical foam (40) is used to fill the patient's wound, the VSD dressing (41) is applied to the patient's wound, one end of the second drainage tube (42) is connected to the medical foam (40), and the other end is connected to the negative pressure bottle (43).
3. The perianal negative pressure closed drainage device according to claim 2, characterized in that: It also includes a water inlet pipe (44), one end of which is connected to the medical foam (40).
4. The perianal negative pressure closed drainage device according to claim 1, characterized in that: The upper surface of the pad (3) is an arc-shaped surface that conforms to the patient's buttocks.
5. The perianal negative pressure closed drainage device according to claim 1, characterized in that: The pad (3) is made of rubber.
6. The perianal negative pressure closed drainage device according to claim 1, characterized in that: The first drainage tube (1) is used to connect to the patient's rectum. One end of the rectum is equipped with an air bag (5), and the air bag (5) is connected to the inflator (7) through an inflation tube (6).
7. The perianal negative pressure closed drainage device according to claim 6, characterized in that: The inflation pipe (6) is partially built into the first drainage pipe (1).
8. The perianal negative pressure closed drainage device according to claim 6, characterized in that: The first drainage tube (1) is tapered and is used to connect one end of the patient's rectum.
9. The perianal negative pressure closed drainage device according to any one of claims 1 to 8, characterized in that: The first drainage tube (1) is connected to the excrement drainage bag (2) and a switch valve (8) is provided at one end.