Seepage plaster
By designing the leachate patch, the adjustment buckle and traction wire are used to achieve seamless wound closure, and combined with the design of the water absorption layer and the color development layer, the problem of difficult to control the leachate of the drainage tube is solved, promoting wound healing and improving aesthetics.
Patent Information
- Application Number
- CN202422140858.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the pelvic or thoracic catheter drainage process in patients with advanced gynecological malignant tumors, the drainage tube ooze is difficult to effectively control, resulting in difficulty in wound healing. Conventional methods such as suture or displacement of compresses lead to the effect of scars.
A liquid-feeding patch is designed, including a base, dressing, water-absorbing layer, adjustment buckle, support ring and traction line. By adjusting the tightness of the traction line, seamless wound closure is achieved, and the water-absorbing layer is used to quickly absorb the liquid. The chromogenic layer indicates the time for replacement, and the water-proof layer improves the fixity.
Non-invasive wound closure is achieved, reducing exudate, promoting healing, avoiding sutured scars, and improving the comfort and aesthetics of the patient.
Smart Images
Figure CN223248412U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical dressings, and in particular to a liquid-exudate dressing. Background Art
[0002] Currently, some patients with advanced gynecological malignancies require pelvic and abdominal drainage or chest tube drainage for maintenance treatment. After the catheter is placed, the patient continues chemotherapy or other maintenance treatments. Since pleural and pelvic effusions are still produced at a rapid rate, it usually takes 1-2 weeks to remove the drainage tube.
[0003] However, if the wound at the drainage tube opening has not yet healed, a single stitch or localized pressure such as a saline bag may be needed to keep the wound dry and promote healing. This effectively closes the opening and reduces exudate. Sometimes, due to inadequate sutures or displacement of the compressing material, patients may continue to experience exudate from the drainage tube opening for extended periods. Utility Model Content
[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a liquid-permeable dressing.
[0005] The present application provides an exudate dressing, which includes two bases, a dressing, a water-absorbing layer, multiple adjustment buckles, a support ring and two traction lines. A space facing the wound is formed between the two bases, and multiple fixing buckles are symmetrically provided on the bases; the dressing is fixed on the two bases and fits the wound; the water-absorbing layer fits above the dressing; multiple adjustment buckles are fixed above the water-absorbing layer; the support ring is provided on the outside of the two bases; the two traction lines are symmetrically provided, and the traction lines include a first end and a second end, the first end is fixedly connected to the fixing buckle on one of the bases, and the second end passes through the direction of the other base, passes through the bottom of the support ring, and is wrapped around any one of the adjustment buckles to tighten the two bases and squeeze and close the wound.
[0006] Optionally, the water absorption layer includes an inner circle water absorption layer and an outer circle water absorption layer, the inner circle water absorption layer is located at the center of the dressing, and the outer circle water absorption layer is annular and arranged on the outside of the inner circle water absorption layer.
[0007] Optionally, a color development layer is provided between the inner circle water absorption layer and the outer circle water absorption layer, and / or,
[0008] A color development layer is arranged on the outer side of the outer circle water absorption layer.
[0009] Optionally, the thickness of the inner circle water absorption layer is greater than the thickness of the outer circle water absorption layer.
[0010] Optionally, the number of the adjusting buckles is an even number, and the even number of the adjusting buckles are symmetrically and evenly spaced along the center of the water absorbing layer;
[0011] Alternatively, the number of the adjusting buckles is odd, the odd number of the adjusting buckles are arranged at equal intervals, and the central axis of one of the adjusting buckles coincides with the central axis of the water absorbing layer.
[0012] Optionally, a plurality of the lead grooves are provided on the support ring, and the traction wire is clamped in the lead grooves.
[0013] Optionally, the water absorbing layer is made of polymer resin.
[0014] Optionally, a waterproof layer is further included, which covers the water-absorbing layer. The area of the waterproof layer is larger than that of the water-absorbing layer, and the edge of the waterproof layer fits the skin.
[0015] Optionally, the waterproof layer includes a tear line, and the tear line is located at the edge of the waterproof layer.
[0016] Optionally, it further comprises a first release film, the bottom surfaces of the two bases are covered with the first release film, and / or,
[0017] It also includes a second release film, and the bottom surface of the waterproof layer and the skin contact portion is covered by the second release film.
[0018] The two bases are symmetrically attached to the two sides of the wound, and the dressing fits the wound to disinfect the wound and guide the exudate into the water-absorbing layer. Since multiple fixing buckles are symmetrically arranged on the base, multiple adjustment buckles are set above the water-absorbing layer; the two traction lines are symmetrically arranged, and one end of the traction line is fixedly connected to the fixing buckle on one of the bases, and the other end is passed along the direction of the other base, and then passed through the support ring and wrapped around any one of the adjustment buckles. The traction line is wrapped around different adjustment buckles, which will produce different degrees of pulling together. The appropriate tightness is selected to tighten the two bases to squeeze and close the wound. In addition, support rings are set on the outside of the two bases. The support rings are used to support the traction line so that the traction line can provide traction after being fixed. The exudate dressing is non-invasive. The tightness of the traction line can be adjusted according to the exudate situation of the drainage port, which can make the wound fit tightly. There is no need for suturing or removing stitches, which avoids the scars caused by suturing that affect the appearance. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0021] Figure 1 A cross-sectional view of a liquid-exudate dressing according to an embodiment of the present application;
[0022] Figure 2 A top perspective view of a liquid-exudate dressing according to an embodiment of the present application;
[0023] Figure 3 This is a schematic structural diagram of the top layer of the liquid-exudate dressing according to an embodiment of the present application;
[0024] Figure 4 A schematic diagram of the middle layer of the liquid-permeable dressing according to an embodiment of the present application;
[0025] Figure 5 This is a schematic structural diagram of the bottom layer of the liquid-exudate dressing according to an embodiment of the present application;
[0026] Figure 6 A schematic diagram of a traction line of a liquid exudate dressing according to the first embodiment of the present application;
[0027] Figure 7 This is a schematic diagram of the traction line of the liquid exudate dressing according to the second embodiment of the present application.
[0028] The reference numerals in the specific embodiment are as follows:
[0029] 1. Base; 11a. Fixing buckle; 2. Dressing; 3. Water-absorbing layer; 31. Inner circle water-absorbing layer; 32. Outer circle water-absorbing layer; 4. Adjusting buckle; 5. Support ring; 51. Lead groove; 6. Pull line; 61. First end; 62. Second end; 7. Color-developing layer; 8. Waterproof layer; 81. Tear line; 9. First release film; 10. Second release film; 11. Water-permeable layer. DETAILED DESCRIPTION
[0030] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.
[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.
[0033] In the description of the embodiments of the present application, "multiple" and "several" mean more than two (including two), unless otherwise clearly and specifically defined.
[0034] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0035] According to some embodiments of the present application, referring to Figure 1 、 Figure 2 and Figure 6 As shown, Figure 1 This is a cross-sectional view of the liquid-exudate dressing according to an embodiment of the present application. Figure 2 This is a top perspective view of the liquid-exudate dressing according to an embodiment of the present application. Figure 6 This is a schematic diagram of the pull cord for the exudate dressing according to the first embodiment of the present application. The exudate dressing according to the present application comprises two bases 1, a dressing 2, a water-absorbing layer 3, multiple adjustment buckles 4, a support ring 5, and two pull cords 6. A space facing the wound is formed between the two bases 1, and multiple fixing buckles 11a are symmetrically arranged on the bases 1. The dressing 2 is fixedly mounted on the two bases 1 and fits the wound. The water-absorbing layer 3 fits above the dressing 2. Multiple adjustment buckles 4 are fixed above the water-absorbing layer 3. The support ring 5 is arranged on the outside of the two bases 1. In the first embodiment of the present application, the pull cord 6 is a closed line. The two pull cords 6 are symmetrically arranged and include a first end 61 and a second end 62. The first end 61 is fixedly connected to the fixing buckle 11a on one of the bases 1, and the second end 62 extends in the direction of the other base 1, passes through the bottom of the support ring 5, and is wrapped around any one of the adjustment buckles 4 to tighten the two bases 1 and squeeze the wound closed. The support ring 5 is provided with a plurality of wire guide grooves 51 , in which the pulling wires 6 are clamped.
[0036] Specifically, the base 1 is made of a material with a certain degree of hardness and toughness, such as PVC, which is adaptable to the skin and resistant to damage. The bottom surface of the base 1 is adhesive for adhesion to the skin. The dressing 2 can be made of natural gauze, synthetic fiber dressing, or other highly absorbent and permeable dressing, which quickly absorbs exudate and transfers it to the absorbent layer 3. Disinfectant and astringent medicinal ingredients can also be added to the dressing 2 to promote wound healing. The traction cord 6 can be made of PE or nylon.
[0037] The two bases 1 are symmetrically attached to the two sides of the wound, and the dressing 2 is fitted to the wound to disinfect the wound and guide the exudate into the water-absorbing layer 3. Since multiple fixing buckles 11a are symmetrically provided on the base 1, multiple adjustment buckles 4 are provided above the water-absorbing layer 3; the two traction lines 6 are symmetrically provided, and the first end 61 of the traction line 6 is fixedly connected to the fixing buckle 11a on one of the bases 1, and the second end 62 is passed along the direction of the other base 1, and passed through the bottom of the support ring 5 and then wound on any one of the adjustment buckles 4. The traction line 6 is wound on different adjustment buckles, which will produce different degrees of pulling. The appropriate tightness is selected to tighten the two bases 1 to squeeze and close the wound. Among them, there are preferably four fixing buckles 11a, and the four fixing buckles 11a are symmetrically provided in groups of two on the two bases 1, so that the tension of the two traction lines 6 is uniform, which is conducive to wound healing. Preferably, the height of the dressing 2 is less than the height of the fixing buckle 11a, which facilitates the fixing and passing of the traction line 6. In addition, a support ring 5 is provided on the outside of the two bases 1. The support ring 5 is provided with multiple guide grooves 51, and the traction wire 6 is clamped in the guide grooves 51. Preferably, there are four guide grooves 51, symmetrically distributed on the support ring 5 at equal intervals. The guide grooves 51 can limit the position of the traction wire 6, allowing the traction wire 6 to pass symmetrically through them, ensuring uniform tension and facilitating wound healing. At the same time, the support ring 5 also serves to support the traction wire 6, enabling the traction wire 6 to provide traction after being fixed. After the traction wire 6 passes through the bottom of the support ring 5 and is clamped in the guide grooves 51, it is wrapped around any one of the adjustment buckles 4. Because the guide grooves 51 are symmetrically arranged, when the tightness of the traction wire 6 is adjusted to align the wound, the squeezing force on the wound is symmetrical, which is beneficial to wound healing. This exudate dressing is non-invasive. The tightness of the traction wire 6 can be adjusted according to the exudate level of the drainage port, allowing the wound to fit tightly, eliminating the need for suturing and removal of sutures, and avoiding the appearance of scars caused by sutures.
[0038] Of course, in other embodiments, reference Figure 7 , Figure 7This is a schematic diagram of the pull line for the exudate dressing according to the second embodiment of the present application. In the second embodiment of the present application, the pull line 6 is an open line. The two ends of the pull line 6 are first ends 61. The two first ends 61 are arranged crosswise and fixedly connected to two fixing buckles 11a on one of the bases 1. The second end 62 extends in the direction of the other base 1, passes through the bottom of the support ring 5, and is clamped in the guide groove 51. It is then wrapped around any one of the adjustment buckles 4 to tighten the two bases 1 to squeeze and close the wound. The above arrangement can also achieve the purpose of adjusting the tightness of the pull line 6 according to the exudate situation of the drainage port.
[0039] According to some embodiments of the present application, the water absorbing layer 3 is made of polymer resin.
[0040] The polymer resin can quickly absorb exudate and has the characteristics of strong absorption and strong water-locking power. It can keep the wound surface dry for a long time, promote the wound to heal as soon as possible, reduce the consumption of medical staff for frequent dressing changes, make the wound surface relatively dry and clean, and promote healing. Figure 1 、 Figure 4 and Figure 5 , Figure 4 Schematic diagram of the middle layer of the liquid-permeable dressing according to an embodiment of the present application. Figure 5 This is a schematic diagram of the structure of the bottom layer of a liquid-exudative dressing according to an embodiment of the present application. The absorbent layer 3 comprises an inner absorbent layer 31 and an outer absorbent layer 32. The inner absorbent layer 31 is located at the center of the dressing 2, while the outer absorbent layer 32 is annular and disposed outside the inner absorbent layer 31. The thickness of the inner absorbent layer 31 is greater than that of the outer absorbent layer 32. A color-developing layer 7 is disposed between the inner and outer absorbent layers 31, 32. Alternatively, a color-developing layer 7 may be disposed outside the outer absorbent layer 32.
[0041] Specifically, the thickness of the inner water-absorbing layer 31 is greater than that of the outer water-absorbing layer 32. The thickness of the inner water-absorbing layer 31 is uniform, while the thickness of the outer water-absorbing layer 32 gradually decreases from closer to the inner water-absorbing layer 31 to farther away from the inner water-absorbing layer 31. The outer water-absorbing layer 32 has a transitional shape to prevent the water-absorbing layer from being excessively thickened.
[0042] Because the inner absorbent layer 31 is positioned directly opposite the wound, it needs to absorb the majority of exuded fluid. The amount of fluid that diffuses outward decreases accordingly. Therefore, the thickness of the inner absorbent layer 31 is greater than that of the outer absorbent layer 32. Furthermore, taking advantage of the characteristic of the absorbent layer 3, which increases in volume after absorbing fluid, the greater thickness of the inner absorbent layer 31 can exert sufficient pressure on the wound, promoting wound healing. This ensures sufficient absorption of exudate while also saving material and facilitating application of the dressing. A color-developing layer 7 is positioned between the inner and outer absorbent layers 31, 32, or alternatively, on the outside of the outer layer 32. This color change indicates that either the inner or outer absorbent layer 31, 32 has reached maximum water absorption, at which point the dressing can be replaced.
[0043] Of course, since some patients have a large amount of exudate, the size of the exudate patch can be selected based on the estimated situation. The larger the volume of the water-absorbing layer 3, the more exudate it can absorb.
[0044] In other embodiments, a water-permeable layer 11 may be provided between the inner water-absorbing layer 31 and the outer water-absorbing layer 32 . The provision of the water-permeable layer 11 can allow the liquid to penetrate into the outer water-absorbing layer 32 after the inner water-absorbing layer 31 reaches saturation.
[0045] refer to Figures 1 to 3 , Figure 3 This is a schematic diagram of the structure of the top layer of the liquid-exudate dressing according to an embodiment of the present application. In some embodiments, when the number of adjustment buckles 4 is even, the even number of adjustment buckles 4 are symmetrically and evenly spaced about the center of the water-absorbing layer 3; when the number of adjustment buckles 4 is odd, the odd number of adjustment buckles 4 are evenly spaced, and the central axis of one of the adjustment buckles 4 coincides with the central axis of the water-absorbing layer 3.
[0046] Specifically, the adjusting buckles 4 can be arranged in a straight line; when the number of the adjusting buckles 4 is odd, it is preferred that the central axis of the adjusting buckle 4 located in the middle coincide with the central axis of the water absorbing layer 3 .
[0047] The traction cord 6 is wound around any of the adjustment buckles 4. Depending on the wound's shape, different tension levels can be selected, allowing for symmetrical adjustment of the tension and position of the traction cord 6. Furthermore, the adjustment buckles 4 also serve a centering function. When there are an even number of adjustment buckles 4, the gap between the two middle adjustment buckles 4 is aligned with the center of the wound. When there are an odd number of adjustment buckles 4, the middle adjustment buckle 4 is preferably aligned with the center of the wound to ensure accurate placement.
[0048] like Figure 3As shown, the liquid-permeable dressing of this embodiment further includes a waterproof layer 8, which covers the water-absorbing layer 3. The area of the waterproof layer 8 is larger than that of the water-absorbing layer 3, and the edge of the waterproof layer 8 is in contact with the skin. The waterproof layer 8 includes a tear line 81, which is located at the edge of the waterproof layer 8.
[0049] Specifically, the area of the waterproof layer 8 is larger than that of the water-absorbing layer 3 and also larger than that of the base 1. The bottom surface of the excess area is adhesive and can be adhered to the skin surface to provide a fixed and airtight seal. The waterproof layer 8 can be made of materials such as non-woven fabrics and medical waterproof membranes.
[0050] The waterproof layer 8 has waterproof and water-isolating functions and can also enhance the fixation effect of the exudate dressing. The waterproof layer 8 can isolate exudate and reduce the impact of soaked clothing on the patient's life. A tear line 81 is provided at the edge of the waterproof layer 8. After the exudate dressing is attached, the waterproof layer 8 is torn away from the tear line 81 to further adjust the attachment position of the exudate dressing, so that the exudate dressing fits better with the skin without wrinkles, thereby enhancing the sealing of the dressing. Preferably, the tear line 81 is shaped like an S. The S-shaped tear line 81 is conducive to enhancing the firmness of the attachment when adjusting the attachment position of the exudate dressing.
[0051] In some embodiments, reference Figure 1 The liquid-exudate patch of the embodiment of the present application further includes a first release film 9 and a second release film 10. The bottom surfaces of the two bases 1 are covered with the first release film 9, and the bottom surface of the waterproof layer 8 that contacts the skin is covered with the second release film 10.
[0052] Because the bottom surface of base 1 is adhesive, to prevent dust or other contaminants from contaminating the bottom layer of base 1 and reduce its stickiness when the exudate patch of this embodiment is not in use, the bottom surfaces of both bases 1 are covered with a first release film 9. During use, the first release film 9 is torn off to adhere the base 1 to the skin. Similarly, the bottom surface of the waterproof layer 8, which contacts the skin, is also adhesive. Similarly, to prevent a decrease in stickiness before use, the bottom surface of the waterproof layer 8, which contacts the skin, is covered with a second release film 10. Notably, the second release film 10 is divided into two parts by a tear line 81, allowing for multiple removals during use for ease of use.
[0053] The working principle of the exudate dressing is introduced in detail below.
[0054] When using the above-mentioned exudate dressing, after disinfecting the wound and the surrounding skin, first tear off the first release film 9 and symmetrically attach the two bases 1 to the wound's smallest diameter. Drainage tube wounds are typically small, typically measuring between 0.5 and 1.0 cm. The two bases 1 should be 1 to 2 cm from the wound edge. Adjustment buckle 4 can be used for alignment. After confirming the correct position, tear off the second release film 10, attach the waterproof layer 8 to the skin, and tear the waterproof layer 8 apart at tear line 81. Further adjust the placement of the exudate dressing to ensure a more wrinkle-free, wrinkle-free fit, and enhance the dressing's airtightness.
[0055] The dressing 2 is fitted to the wound and is used to disinfect the wound and guide exudate into the water-absorbing layer 3. Since multiple fixing buckles 11a are symmetrically provided on the base 1, multiple adjustment buckles 4 are provided above the water-absorbing layer 3; two traction lines 6 are symmetrically provided, with one end of the traction line 6 fixedly connected to the fixing buckle 11a on one of the bases 1, and the other end extending in the direction of the other base 1, passing through the support ring 5, and then wrapped around any one of the adjustment buckles 4. The traction line 6 is wrapped around different adjustment buckles, resulting in different degrees of pulling together. The appropriate tightness can be selected to tighten the two bases 1 to squeeze and close the wound. At this time, there is still a gap between the two bases 1, which can drain the exudate that continues to be produced into the dressing 2 provided above. In addition, a support ring 5 is provided on the outside of the two bases 1, and a plurality of guide grooves 51 are provided on the support ring 5. The traction line 6 is clamped in the guide groove 51. The guide groove 51 restricts the position of the traction wire 6, allowing it to pass symmetrically through it, ensuring uniform tension and facilitating wound healing. The support ring 5 also supports the traction wire 6, ensuring it can provide traction once secured. It's worth noting that the absorbent layer 3 is made of a polymer resin, which can absorb liquids several times its own volume. After absorbing wound exudate, the absorbent layer 3 increases in volume and thickness, exerting localized pressure on the wound. Simultaneously, the distance between the two bases 1 is tightened by the traction wire 6. By leveraging the absorbent layer 3's increased volume after absorbing liquid, it can apply pressure to the apposed drainage wound, reducing exudate. Furthermore, a color-developing layer 7 is positioned between the inner and outer absorbent layers 31, 32, or on the outside of the outer layer 32. A color change in the color of the color-developing layer 7 indicates that either the inner or outer absorbent layer 31, 32 has reached maximum water absorption, paving the way for a new dressing. The exudate dressing is non-invasive and the tightness of the traction line 6 can be adjusted according to the exudate situation of the drainage port, so that the wound can be closely fitted without suturing or removing the sutures, thus avoiding the scars caused by suturing that affect the appearance.
[0056] The content of this application is not limited to the examples listed in the embodiments. Any equivalent transformations made by ordinary technicians in this field to the technical solutions of this application after reading the description of this application are covered by the claims of this application.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A liquid exudate dressing, characterized in that: The exudate dressing comprises: Two bases (1), a space facing the wound is formed between the two bases (1), and a plurality of fixing buckles (11a) are symmetrically provided on the bases (1); A dressing (2), wherein the dressing (2) is fixedly arranged on the two bases (1), and the dressing (2) is attached to the wound; A water-absorbing layer (3), wherein the water-absorbing layer (3) is attached to the dressing (2); A plurality of adjusting buckles (4), wherein the plurality of adjusting buckles (4) are fixed above the water absorbing layer (3); A support ring (5), the support ring (5) being arranged on the outside of the two bases (1); Two traction lines (6) are symmetrically arranged, and the traction lines (6) include a first end (61) and a second end (62). The first end (61) is fixedly connected to the fixing buckle (11a) on one of the bases (1), and the second end (62) passes through the direction of the other base (1), passes through the bottom of the support ring (5), and is then wound around any one of the adjustment buckles (4) to tighten the two bases (1) and squeeze and close the wound.
2. The liquid-exudate dressing according to claim 1, characterized in that The water-absorbing layer (3) comprises an inner circle water-absorbing layer (31) and an outer circle water-absorbing layer (32), wherein the inner circle water-absorbing layer (31) is located at the center of the dressing (2), and the outer circle water-absorbing layer (32) is annular and is arranged outside the inner circle water-absorbing layer (31).
3. The liquid-exudate dressing according to claim 2, characterized in that: A color development layer (7) is provided between the inner circle water absorption layer (31) and the outer circle water absorption layer (32), and / or A color development layer (7) is provided on the outer side of the outer circle water absorption layer (32).
4. The liquid-exudate dressing according to claim 2, characterized in that: The thickness of the inner circle water absorption layer (31) is greater than the thickness of the outer circle water absorption layer (32).
5. The liquid-exudate dressing according to claim 1, characterized in that The number of the adjusting buckles (4) is an even number, and the even number of the adjusting buckles (4) are symmetrically arranged along the center of the water absorbing layer (3) and at equal intervals; Alternatively, the number of the adjusting buckles (4) is odd, the odd number of the adjusting buckles (4) are arranged at equal intervals, and the central axis of one of the adjusting buckles (4) coincides with the central axis of the water absorbing layer (3).
6. The liquid-exudate dressing according to claim 1, characterized in that: The support ring (5) is provided with a plurality of wire guide grooves (51), and the pulling wire (6) is clamped in the wire guide grooves (51).
7. The liquid-exudate dressing according to claim 1, characterized in that The water absorbing layer (3) is made of polymer resin.
8. The liquid-exudate dressing according to claim 1, characterized in that It also includes a waterproof layer (8), which covers the water-absorbing layer (3), the area of the waterproof layer (8) is larger than the area of the water-absorbing layer (3), and the edge of the waterproof layer (8) is in contact with the skin.
9. The liquid-exudate dressing according to claim 8, characterized in that The waterproof layer (8) comprises a tear line (81), and the tear line (81) is located at the edge of the waterproof layer (8).
10. The liquid-exudate dressing according to claim 8, characterized in that It also includes a first release film (9), the bottom surfaces of the two bases (1) are covered with the first release film (9), and / or, It also includes a second release film (10), and the bottom surface of the waterproof layer (8) and the skin-contacting portion is covered with the second release film (10).