A traditional Chinese medicine external application device for a combined Chinese and western medicine oncology department
The triple-fixation structure of rubber ring, dressing ring, and adjustment pad solves the problems of uneven drug distribution and fall-off caused by the absorption of dressings in traditional Chinese medicine external application devices. It achieves stable adhesion of the Chinese medicine external application device and uniform drug penetration, thereby improving the therapeutic effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
- Filing Date
- 2025-03-26
- Publication Date
- 2026-07-03
AI Technical Summary
After a period of use, traditional Chinese medicine external application devices develop local gaps between the dressing and the skin, resulting in uneven drug distribution and an inability to adapt to dynamic skin deformation, leading to reduced efficacy and dressing detachment.
It adopts a triple fixation structure of rubber ring, dressing ring, and adjustment pad. The rubber ring is fixed to the skin, the dressing ring forms a support frame, and the adjustment pad slides to adjust the placement space, ensuring that the dressing fits the skin tightly. It is combined with a hollowed-out mesh plate and an elastic sealing layer to prevent the medication from leaking out.
It extends the application time of the dressing, improves drug penetration efficiency, enhances local treatment effects, and ensures uniform drug distribution and fixation.
Smart Images

Figure CN224441912U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of traditional Chinese medicine dressing technology, specifically relating to a traditional Chinese medicine external application device for oncology using integrated traditional Chinese and Western medicine. Background Technology
[0002] In the field of comprehensive cancer treatment, external application of traditional Chinese medicine (TCM) is an important method combining TCM and Western medicine. It achieves local drug delivery through skin penetration, offering unique advantages such as improving microcirculation, reducing the side effects of radiotherapy and chemotherapy, and enhancing immune function. Traditional TCM external application devices typically consist of a drug-loaded patch, an adhesive layer, and a protective film. Their core technology lies in the continuous release of the active pharmaceutical ingredients through the skin. However, the following key issues have been revealed in clinical applications:
[0003] Traditional Chinese medicine external application preparations (such as ointments and pastes) release medication rapidly upon initial contact with the skin. However, as time progresses, the surface medication is absorbed or evaporates, gradually creating localized gaps between the dressing and the skin. Clinical observations show that after 4-6 hours of use, the gap coverage can reach 30%-50%, leading to a sharp reduction in the effective contact area and decreased efficacy. Unabsorbed viscous medication drips down along the gaps under gravity, especially when the patient is upright or moving, causing medication to accumulate at the bottom of the dressing and forming empty cavities at the top, resulting in uneven drug distribution. Traditional adhesive tape or bandages cannot adapt to dynamic skin deformation (such as breathing and joint movement), and the edges of the dressing are prone to lifting, accelerating the expansion of gaps.
[0004] Therefore, there is an urgent need for a device for external application of traditional Chinese medicine that can improve the efficacy of herbal poultices. Utility Model Content
[0005] To address the aforementioned problems in the existing technology, this utility model provides a traditional Chinese medicine external application device for oncology using integrated traditional Chinese and Western medicine, which solves the problem that existing traditional Chinese medicine dressings are absorbed and fall off after a period of use, resulting in a reduction in the effectiveness of the dressing.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A traditional Chinese medicine external application device for oncology using integrated traditional Chinese and Western medicine includes a dressing, a medicated ring, an adjusting pad, and an adhesive ring. The adhesive ring is fixedly disposed on the dressing, and the medicated ring is fixedly disposed at the bottom of the adhesive ring. The medicated ring and the adjusting pad form a placement space for filling the traditional Chinese medicine dressing. The adjusting pad is slidably connected to the adhesive ring to change the size of the placement space and adjust the fit between the dressing and the skin.
[0008] Preferably, the dressing ring is composed of several mesh plates, which are used to divide the dressing into several isolated areas.
[0009] Preferably, the adjusting pad and the rubber ring are threaded together.
[0010] Preferably, the rubber ring is further provided with a sealing layer, which is located between the adjusting pad and the dressing ring to prevent the dressing liquid from leaking out, and the sealing layer is elastic.
[0011] Preferably, the dressing has an adhesive layer around its periphery for attaching the dressing to the skin, and the dressing has several tear slits along its inward edge to accommodate curve changes.
[0012] Preferably, the dressing is further provided with interlocking fixing straps on both sides, which are used to fix the dressing to the body.
[0013] The beneficial effects of this utility model are as follows:
[0014] This application solves the problem of traditional dressings falling off due to volume changes after absorption by using a triple fixation structure of adhesive ring, dressing ring, and adjustment pad. This extends the single-use time, and the sliding adjustment pad can compensate for dressing volume changes in real time, maintain constant pressure to promote drug penetration, improve the utilization rate of active ingredients, and enhance the local treatment effect. Attached Figure Description
[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a schematic diagram of the structure of the traditional Chinese medicine external application device provided in one embodiment of the present invention;
[0017] Figure 2 This is a top view of the traditional Chinese medicine external application device provided in one embodiment of the present invention;
[0018] Figure 3 This is a schematic diagram of the application ring connection structure provided in one embodiment of the present invention;
[0019] Legend: 1. Adhesive patch; 2. Medication ring; 3. Adjustment pad; 4. Adhesive ring; 5. Sealing layer; 61. Adhesive layer; 62. Tear opening; 7. Fixing strap. Detailed Implementation
[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0021] like Figures 1-3As shown, a traditional Chinese medicine external application device for oncology using integrated traditional Chinese and Western medicine includes a dressing 1, a medicated ring 2, an adjusting pad 3, and an adhesive ring 4. The adhesive ring 4 is fixedly installed on the dressing 1, and the medicated ring 2 is fixedly installed at the bottom of the adhesive ring 4. The medicated ring 2 and the adjusting pad 3 form a placement space for filling the traditional Chinese medicine dressing. The adjusting pad 3 is slidably connected to the adhesive ring 4 to change the size of the placement space and adjust the fit between the dressing and the skin.
[0022] The adhesive ring 4 serves as the core fixing component, adhering tightly to the skin surface and providing initial stability. The dressing ring 2 is fixed to the bottom of the adhesive ring 4, forming a ring support frame to ensure that the dressing will not shift due to gravity or limb movement after filling. Users can manually adjust the position of the adjustment pad 3 to change the volume of the placement space. When the volume of the Chinese medicine dressing decreases due to absorption by the skin, pushing the adjustment pad 3 inward can reduce the space and continuously apply moderate pressure to keep the dressing tightly attached to the skin, avoiding the problem of traditional dressings falling off due to the dressing drying out.
[0023] In summary, this application solves the problem of traditional dressings falling off due to volume changes after absorption by using a triple fixation structure of adhesive ring 4, dressing ring 2, and adjusting pad 3, thus extending the single-use time. The sliding adjusting pad 3 can compensate for dressing volume changes in real time, maintain constant pressure to promote drug penetration, improve the utilization rate of effective ingredients, and enhance the local treatment effect.
[0024] In one embodiment, the dressing ring 2 is composed of several perforated mesh plates spliced together to form a ring frame. The mesh plates form independent partitions, dividing the Chinese medicine dressing into multiple physically isolated modular areas. Each mesh unit serves as an independent support unit, ensuring that the dressing maintains local shape stability during absorption. When the dressing in a certain area decreases due to absorption, the perforated mesh plates allow the dressing to flow laterally, always keeping the dressing in each dressing area uniform. At the same time, in conjunction with the sliding adjustment of the adjusting pad 3, differential pressure compensation can be applied to each mesh unit, so that the dressing in each area always maintains uniform contact with the skin.
[0025] In one embodiment, the adjusting pad 3 and the rubber ring 4 are threadedly connected. The outer wall of the adjusting pad 3 is provided with an external thread, and the inner wall of the rubber ring 4 is provided with a matching internal thread. By rotating the adjusting pad 3, the user can convert the rotational motion into axial linear motion by utilizing the helix angle of the external thread, thereby precisely controlling the longitudinal position of the adjusting pad 3 within the rubber ring 4. The axial movement of the adjusting pad 3 directly changes the vertical distance between it and the dressing ring 2, thereby achieving continuous adjustment of the placement space volume.
[0026] In one embodiment, the rubber ring 4 is further provided with a sealing layer 5, which is located between the adjusting pad 3 and the dressing ring 2 to prevent the dressing liquid from leaking out. The sealing layer 5 is elastic, and the elastic sealing layer 5 (such as medical silicone material) is embedded between the contact surfaces of the adjusting pad 3 and the dressing ring 2. When the adjusting pad 3 is screwed in through the threaded connection, the sealing layer 5 is axially compressed, and its elastomer expands radially, pressing the dressing against the skin. At the same time, it can prevent the dressing from leaking out of the adjusting pad 3 and also prevent bacteria from entering from the adjusting pad 3 and contaminating the dressing.
[0027] In one embodiment, an adhesive layer 61 is provided around the periphery of the dressing 1. The adhesive layer 61 is used to adhere the dressing 1 to the skin. Several tear slits 62 are provided inward from the edge of the dressing 1. The tear slits 62 are used to adapt to curve changes. The tear slits 62 adopt a symmetrical V-shaped cutting process. When the dressing 1 is adhered to the skin, the adhesive layer 61 generates an initial pretension, and the tip of the tear slit 62 forms a local stress concentration point, so that the edge of the dressing 1 naturally conforms to the micro-concave and convex structure of the skin.
[0028] In one embodiment, the dressing 1 is further provided with interlocking fixing straps 7 on both sides. The fixing straps 7 are used to fix the dressing 1 to the body. The fixing straps 7 adopt a two-way adjustable buckle design and are lined with anti-slip silicone strips. When the fixing straps 7 on both sides are fastened, the straps generate lateral pretension, pressing the edge of the dressing 1 against the skin.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A traditional Chinese medicine external application device for a combined traditional Chinese and Western medicine oncology department, characterized in that, It includes a dressing, a medicated ring, an adjusting pad, and an adhesive ring; the adhesive ring is fixedly disposed on the dressing, the medicated ring is fixedly disposed at the bottom of the adhesive ring, the medicated ring and the adjusting pad form a placement space, the placement space is used to fill the traditional Chinese medicine dressing; the adjusting pad is slidably connected to the adhesive ring, and is used to change the size of the placement space and adjust the fit between the dressing and the skin.
2. The traditional Chinese medicine external application device for oncology department of integrative traditional Chinese and Western medicine according to claim 1, characterized in that, The dressing ring is composed of several mesh plates, which are used to divide the dressing into several isolated areas.
3. The traditional Chinese medicine external application device for oncology department of integrative traditional Chinese and Western medicine according to claim 1, characterized in that, The adjusting pad and the rubber ring are threaded together.
4. The traditional Chinese medicine external application device for oncology using integrated traditional Chinese and Western medicine as described in claim 1, characterized in that, The rubber ring is also provided with a sealing layer, which is located between the adjusting pad and the dressing ring to prevent the dressing liquid from leaking out. The sealing layer is elastic.
5. The traditional Chinese medicine external application device for oncology department of integrative traditional Chinese and Western medicine according to claim 1, characterized in that, The dressing has an adhesive layer around its periphery for attaching it to the skin. The dressing also has several tear slits along its inward edge to accommodate curve changes.
6. The traditional Chinese medicine external application device for oncology department of integrative traditional Chinese and Western medicine according to claim 1, characterized in that, The dressing is also provided with interlocking fastening straps on both sides, which are used to fix the dressing to the body.