An adjustable shaping device for repairing skin tissue defects after tumor resection

Abstract

This invention discloses an adjustable shaping device for repairing skin tissue defects after tumor resection. This device consists of multiple air-filled dressing devices linked together by adhesive strips to form a chain structure, allowing it to naturally adjust its bending angle according to the curvature of the torso or limbs. Each device is equipped with a shaping intensity controller, which monitors the pressure on the skin contact surface in real time via a flexible pressure sensor. The operator can set a target pressure value, and the control board will then activate the micro-pump of the dressing inflation device. Inflation is then directed through air delivery tubes and solenoid valves to the elliptical silicone air bladder, inflating it to the set pressure. During use, the device automatically adjusts according to pressure changes, operates independently, and uses a rechargeable lithium battery. Differential pressure values ​​can also be set for different incision locations to create a pressure gradient. After use, the air in the air bladder can be released and the device removed; the adhesive strips are reusable.

Description

Technical Field

[0001] This invention relates to the field of skin repair and shaping instruments, specifically to an adjustable shaping device for repairing skin tissue defects after tumor resection. Background Technology

[0002] In skin tumor resection surgery, while some adjustable repair devices exist for soft tissue defect repair, many suffer from poor adaptability and inaccurate pressure control. For example, some devices employ rigid structures, making it difficult to conform to complex curved surfaces such as the auricle and joints, resulting in poor repair outcomes. Other devices, while possessing pressure regulation capabilities, lack real-time monitoring and feedback mechanisms, failing to dynamically adjust according to tissue pressure changes. This can easily lead to complications such as pressure sores or repair failure due to excessive or insufficient pressure. Furthermore, traditional devices often rely on a single repair method, unable to provide personalized repair solutions based on differences in defect location, size, and depth, limiting the flexibility of clinical applications. In the field of pressure monitoring and control technology, flexible pressure sensors, due to their high sensitivity, flexibility, and stretchability, demonstrate great potential in medical and health monitoring. By detecting pressure changes and converting them into electrical signals, they can provide real-time feedback on tissue pressure, providing a basis for precise control. However, existing flexible sensors are mostly used for static pressure monitoring, such as blood pressure and pulse detection in smart wearable devices. Their application in dynamic surgical scenarios still faces challenges, such as how to ensure the stable integration of sensors and devices, and how to achieve real-time processing and feedback of pressure data.

[0003] Meanwhile, airbag technology, as a physical pressure-based treatment method, stimulates local nerves and muscles by adjusting air pressure to generate a feeling of pressure, and has been widely used in chronic pain management, rehabilitation training, and laparoscopic surgery. Its ability to improve local blood circulation and promote tissue metabolism through pressure gradients provides a new approach for skin defect repair. However, existing airbag devices are mostly used for single functions, such as establishing pneumoperitoneum or providing static support, lacking the ability to work synergistically with repair devices and failing to meet the needs of postoperative dynamic pressure management. In summary, existing soft tissue defect repair techniques after skin tumor resection suffer from poor adaptability, inaccurate pressure control, and limited repair methods. While the development of flexible pressure sensors, airbag technology, and lithium battery technology offers possibilities for solving these problems, a complete solution has not yet been formed. Therefore, developing a skin tissue defect repair device after tumor resection that integrates an adjustable structure, real-time pressure monitoring and feedback, multi-mode repair functions, and stable power support has significant clinical significance and application prospects. Summary of the Invention

[0004] In view of the deficiencies mentioned above in the background art, a technical solution is provided for an adjustable shaping device for repairing skin tissue defects after tumor resection.

[0005] It includes a multi-piece interconnected airbag dressing device, with a shaping strength controller fixedly connected to the left side of the top surface of the airbag dressing device, and a dressing inflation device provided on the right side of the top surface of the airbag dressing device. Each of the airbag-type dressing devices includes an elliptical silicone airbag, a silicone support frame fixedly connected to the periphery of the elliptical silicone airbag, and two perforated adhesive tapes fixed to the left and right sides of the silicone support frame. Flexible pressure sensors are embedded and fixed on the bottom surface of the elliptical silicone airbag that is close to the skin. The shaping strength controller includes a bottom shell and a top shell that is fixed to the upper surface of the bottom shell with a clip. A control motherboard is fixedly connected to the left side of the inner cavity of the bottom shell, a lithium battery is fixedly connected to the right side of the inner cavity of the bottom shell, and a touch screen is fixedly connected to the left side of the top surface of the top shell. The inflatable dressing device includes a miniature air pump and an air supply pipe connected to the air supply end of the miniature air pump via a connector. A small solenoid valve is connected to the port of the air supply pipe away from the miniature air pump. A bend is connected to the port of the small solenoid valve away from the air supply pipe. The end port of the bend is connected to a nozzle that is inserted into and embedded inside the oval silicone air bladder.

[0006] In the above technical solution, preferably: the upper and lower surfaces of the elliptical silicone airbag expand outward and push upward, and the interior of the elliptical silicone airbag is provided with a cavity for its expansion or contraction.

[0007] In the above technical solution, preferably: the bottom surface of the elliptical silicone airbag is provided with an opening for the flexible pressure sensor to be fixedly embedded, and the bottom pressure sensing end face of the flexible pressure sensor is flush with the bottom surface of the elliptical silicone airbag.

[0008] In the above technical solution, preferably: adhesive strips are fixed on both the front and rear ends of the silicone support frame, wherein the lower surface of the adhesive strip on the left side is provided with a notch, and the upper surface of the adhesive strip on the right side is provided with a notch. The notches of the adhesive strips are connected to each other and adhered to each other, so that the airbag-type dressing device is connected to each other to form a long strip and is wrapped along the direction of the skin tissue defect.

[0009] In the above technical solution, preferably: the top surface of the elliptical silicone airbag is provided with round holes for inserting and fixing the nozzle, and the gap between the round holes and the nozzle is filled and sealed with sealant.

[0010] In the above technical solution, preferably, the pressure sensing data of the flexible pressure sensor is connected to the receiving end of the control motherboard via a cable.

[0011] In the above technical solution, preferably: the bottom surface of the bottom shell is fixed to the left side of the top surface of the elliptical silicone airbag, and a charging port for charging the lithium battery is provided on the front side wall of the bottom shell.

[0012] In the above technical solution, preferably, the touch screen is used to display the pressure data of the flexible pressure sensor and control the start and stop of the micro air pump.

[0013] In the above technical solution, preferably, the bottom surface of the micro air pump is fixed to the right side of the top surface of the elliptical silicone airbag.

[0014] In the above technical solution, preferably, the control terminal of the small solenoid valve is connected to the control terminal of the control motherboard via a wiring harness.

[0015] As can be seen from the above technical solution, the adjustable shaping device for repairing skin tissue defects after tumor resection provided by the present invention has the following beneficial effects compared with the prior art: This adjustable shaping device for repairing skin tissue defects after tumor resection features a chain structure composed of multiple air-filled dressing devices interlocked by adhesive strips. It can naturally adjust its bending angle according to the curvature of the trunk or limbs, conforming to different areas and improving adaptability. Flexible pressure sensors monitor pressure in real time, and the control board precisely adjusts the airbag inflation volume according to set values, ensuring stable pressure within an appropriate range and preventing improper pressure from affecting the repair effect. Each device operates independently, allowing for differentiated pressure values ​​to be set for different incision locations, creating a pressure distribution gradient that better meets actual repair needs. The rechargeable lithium battery ensures continuous operation. After use, the device can be removed by releasing the gas, and the adhesive strips can be reused, reducing operating costs. The overall device is easy to operate and can be flexibly adjusted according to actual conditions, effectively improving the quality and efficiency of skin tissue defect repair after tumor resection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the repair molding device; Figure 2 Schematic diagram of an airbag-type dressing device; Figure 3 This is a schematic diagram of the internal structure of an airbag-type dressing device. Figure 4Schematic diagram of the plastic strength controller; Figure 5 This is a schematic diagram of an inflatable device for application.

[0018] Appendix Figure 1 - Appendix Figure 5 The correspondence between the components is as follows: 1. Airbag-type dressing device; 1-1. Oval silicone airbag; 1-2. Perforated adhesive tape; 1-3. Adhesive strip; 1-4. Silicone support frame; 1-5. Cavity; 1-6. Flexible pressure sensor; 2. Shaping strength controller; 2-1. Bottom shell; 2-2. Control motherboard; 2-3. Lithium battery; 2-4. Top shell; 2-5. Touch screen; 3. Dressing inflation device; 3-1. Miniature air pump; 3-2. Air delivery tube; 3-3. Small solenoid valve; 3-4. Bend; 3-5. Connector. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present invention, the following describes specific embodiments that implement the preferred technical solutions of the present invention.

[0020] An embodiment of an adjustable shaping device for repairing skin tissue defects after tumor resection is as follows: This adjustable shaping device consists of multiple interconnected air-cushion dressing devices 1. Each air-cushion dressing device 1 includes an independent shaping intensity controller 2 and a dressing inflation device 3, forming a modular structure to meet the segmented adaptation needs of surgical incisions of different lengths. Specifically, the core component of the air-cushion dressing device 1 is an elliptical silicone air-cushion 1-1. The shaping intensity controller 2 is fixedly installed on the left side of its top surface, and the dressing inflation device 3 is located on the right side. Both the upper and lower surfaces of the elliptical silicone air-cushion 1-1 are designed to expand outwards, with an inflatable and deflated cavity 1-5 inside. Shape changes are achieved by adjusting the internal air pressure. A silicone support frame 1-4 surrounds the air-cushion, with two perforated adhesive tapes 1-2 symmetrically fixed on the left and right sides of this frame. Two sets of adhesive strips 1-3 are set on the front and rear ends of each frame. The lower surface of the left adhesive strip 1-3 has a notch, and the corresponding upper surface on the right side has a notch. Adjacent air-cushion dressing devices 1 interlock and adhere to each other through these notches, forming a serpentine structure that can bend along the direction of the skin defect.

[0021] The shaping strength controller 2 adopts a split-shell design. The bottom shell 2-1 is glued to the top left side of the oval silicone airbag 1-1, and the top shell 2-4 is closed to the bottom shell 2-1 by a snap-fit ​​structure. The internal space is divided into two functional areas: the control motherboard 2-2 is installed on the left side, the lithium battery 2-3 is configured on the right side, and the touch screen 2-5 is embedded on the top left side of the top shell 2-4. A charging interface is provided on the front side wall. The control motherboard 2-2 integrates a pressure data processing module and a solenoid valve control module, and is electrically connected to the flexible pressure sensor 1-6 and the small solenoid valve 3-3 through cables. The miniature air pump 3-1 of the applicator inflation device 3 is fixed to the top right side of the oval silicone airbag 1-1. Its air supply end is connected to the small solenoid valve 3-3 through the air supply pipe 3-2, and the output end of the solenoid valve 3-3 is connected to the connector 3-5 through the bent pipe 3-4. The connector 3-5 is vertically inserted into the pre-set round hole at the top of the oval silicone airbag 1-1, and the insertion part is filled with sealant to ensure airtightness. An inlay opening matching the shape of the flexible pressure sensor 1-6 is opened on the bottom surface of the elliptical silicone airbag 1-1. After the sensor is installed, its pressure sensing end face is flush with the bottom surface of the airbag to ensure the flatness of the contact surface.

[0022] The assembly process of the device is as follows: First, the flexible pressure sensor 1-6 is embedded into the bottom opening of the elliptical silicone airbag 1-1, making the sensing end face flush with the surface of the airbag; the bottom shell 2-1 of the shaping strength controller 2 is glued and fixed to the top left side of the airbag, and the control motherboard 2-2 and lithium battery 2-3 are installed inside in sequence; the micro air pump 3-1 is fixed to the top right side of the airbag, and the air delivery tube 3-2, small solenoid valve 3-3, bend 3-4 and connector 3-5 are connected in sequence; finally, the top shell 2-4 is snapped and fixed above the bottom shell 2-1, completing the assembly of a single airbag dressing device 1. Multiple devices interlock with each other through the notches of the adhesive strips 1-3 on the front and rear ends to form a flexible chain structure. In actual application, the appropriate number of airbag dressing devices 1 are selected and connected according to the length of the patient's surgical incision. The inflation pressure of each device can be independently controlled via the touchscreen 2-5: after the miniature air pump 3-1 is started, it inflates the internal cavity 1-5 of the oval silicone airbag 1-1. The small solenoid valve 3-3 adjusts its opening according to the instructions of the control board 2-2 to achieve precise control of the air pressure. The flexible pressure sensor 1-6 monitors the pressure value of the airbag in contact with the skin in real time. The data is transmitted to the control board 2-2 and displayed on the touchscreen 2-5. When the pressure exceeds the set threshold, the miniature air pump 3-1 is automatically shut off.

[0023] The modular design of this device allows for adjustment of the connection angle according to the curvature changes of the torso or limbs. The notched structure of the adhesive strips 1-3 of adjacent airbag-type dressing devices 1 ensures connection strength while providing ±30° of bending freedom. Each device is independently equipped with a shaping strength controller 2 and a dressing inflation device 3, allowing for personalized pressure adjustment of dressing units at different locations based on local skin tension differences. When replacement or cleaning is required, the device can be quickly disassembled by reversing the operation of the adhesive strips 1-3. The sealed connection structure between the nozzle 3-5 and the airbag ensures that repeated disassembly and reassembly do not affect airtightness. The charging interface of the lithium battery 2-3 is designed on the front side of the bottom shell 2-1 for easy charging when the device is fixed.

[0024] Based on the above, the workflow of this technical solution is explained as follows: Select an appropriate number of air-cushion dressing devices 1 according to the length of the patient's surgical incision. Interlock the devices using the notches on the adhesive strips 1-3 at the front and rear ends, aligning the lower notches on the left side of the adhesive strips 1-3 of adjacent devices with the upper notches on the right side, forming a chain-like structure extending along the skin defect. The bending angle can be naturally adjusted within ±30° according to the curvature of the trunk or limbs. Apply the assembled device to the skin defect area and initially fix its position using perforated adhesive tape 1-2. Activate the shaping strength controller 2 on top of each air-cushion dressing device 1. The touch screen 2-5 displays the initial pressure value. At this time, the flexible pressure sensor 1-6 continuously monitors the pressure changes between the elliptical silicone airbag 1-1 and the skin contact surface. The operator sets the target pressure value through the touch screen 2-5. After receiving the instruction, the control board 2-2 starts the miniature air pump 3-1 of the application inflation device 3. The gas is delivered to the small solenoid valve 3-3 through the air supply pipe 3-2. The solenoid valve 3-3 adjusts its opening according to the electrical signal output by the control board 2-2, so that the gas enters the cavity 1-5 inside the elliptical silicone airbag 1-1 through the bend 3-4 and the connector 3-5. The upper and lower surfaces of the airbag expand outward as the air pressure increases until the flexible pressure sensor 1-6 detects that the pressure has reached the set value. The control board 2-2 immediately shuts down the miniature air pump 3-1 and maintains the current opening of the solenoid valve 3-3.

[0025] When patient movement causes changes in local pressure, the flexible pressure sensor 1-6 transmits real-time pressure data to the control board 2-2. If the pressure exceeds the set threshold, the control board 2-2 restarts the micro air pump 3-1 to regulate the air pressure, or controls the small solenoid valve 3-3 to release some gas to reduce the pressure. The touch screen 2-5 updates the pressure value synchronously. During use, each airbag dressing device 1 operates independently, and its lithium battery 2-3 is charged through the charging port on the front of the bottom shell 2-1. The device can remain in a fixed state and continue to work while charging. If it is necessary to adjust the overall position of the device or replace it for cleaning, the adjacent devices can be separated by tearing off the adhesive strip 1-3 in the reverse direction. The disassembled individual airbag dressing device 1 can be reassembled and used by repeating the above steps. The nozzle 3-5 and the round hole at the top of the oval silicone airbag 1-1 are sealed with sealant to maintain airtightness. The disassembly and assembly process does not affect the function of the device. When patients' incisions heal at different rates, differentiated pressure values ​​can be set for devices at different locations via the touchscreen 2-5. Devices closer to the incision center are set with higher pressure to promote adhesion, while devices at the edges are set with lower pressure to reduce tension. The elliptical silicone airbags 1-1 of each device adjust their inflation degree according to the independently set pressure value, forming a pressure distribution gradient from the center to the edge. After use, the miniature air pump 3-1 can be reversed via the touchscreen 2-5 or the small solenoid valve 3-3 can be manually opened to allow the gas inside the elliptical silicone airbag 1-1 to be discharged through the nozzle 3-5, the bend 3-4, and the air delivery tube 3-2. After the airbag deflates, the device can be removed. The remaining perforated adhesive tape 1-2 can be cleaned using routine medical cleaning methods, and the adhesive strip 1-3 can be separated without damage and reused for subsequent assembly.

[0026] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. An adjustable shaping device for repairing skin tissue defects after tumor resection, comprising multiple interconnected air-filled dressing devices (1), characterized in that: A shaping strength controller (2) is fixedly connected to the left side of the top surface of the airbag-type dressing device (1), and a dressing inflation device (3) is provided on the right side of the top surface of the airbag-type dressing device (1). Each of the airbag-type dressing devices (1) includes an elliptical silicone airbag (1-1), a silicone support frame (1-4) fixedly connected to the periphery of the elliptical silicone airbag (1-1), and two perforated adhesive tapes (1-2) fixed to the left and right sides of the silicone support frame (1-4). Flexible pressure sensors (1-6) are embedded and fixed on the bottom surface of the elliptical silicone airbag (1-1) that is close to the skin. The shaping strength controller (2) includes a bottom shell (2-1) and a top shell (2-4) that is fixed to the upper surface of the bottom shell (2-1) by a snap fastener. A control motherboard (2-2) is fixedly connected to the left side of the inner cavity of the bottom shell (2-1), a lithium battery (2-3) is fixedly connected to the right side of the inner cavity of the bottom shell (2-1), and a touch screen (2-5) is fixedly connected to the left side of the top surface of the top shell (2-4). The inflatable dressing device (3) includes a miniature air pump (3-1) and an air supply pipe (3-2) connected to the air supply end of the miniature air pump (3-1) via a connector. A small solenoid valve (3-3) is connected to the port of the air supply pipe (3-2) away from the miniature air pump (3-1). A bend (3-4) is connected to the port of the small solenoid valve (3-3) away from the air supply pipe (3-2). The end port of the bend (3-4) is connected to a nozzle (3-5) that is inserted into and embedded inside the elliptical silicone airbag (1-1).

2. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The upper and lower surfaces of the elliptical silicone airbag (1-1) both expand outwards, and the interior of the elliptical silicone airbag (1-1) is provided with a cavity (1-5) for its expansion or contraction.

3. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The bottom surface of the elliptical silicone airbag (1-1) is provided with an opening for the flexible pressure sensor (1-6) to be fixedly embedded, and the bottom pressure sensing end face of the flexible pressure sensor (1-6) is flush with the bottom surface of the elliptical silicone airbag (1-1).

4. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: Adhesive strips (1-3) are fixed on both the front and rear ends of the silicone support frame (1-4). The lower surface of the adhesive strip (1-3) on the left side has a notch, and the upper surface of the adhesive strip (1-3) on the right side has a notch. The notches of the adhesive strips (1-3) are connected to each other and adhered to each other, so that the airbag dressing device (1) is connected to each other to form a long strip and is wrapped along the direction of the skin tissue defect.

5. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The top surface of the elliptical silicone airbag (1-1) is provided with round holes for inserting and fixing the nozzle (3-5), and the gap between the round holes and the nozzle (3-5) is filled and sealed with sealant.

6. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The pressure sensing data of the flexible pressure sensor (1-6) is connected to the receiving end of the control motherboard (2-2) via a cable.

7. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The bottom surface of the bottom shell (2-1) is fixed to the left side of the top surface of the elliptical silicone airbag (1-1), and a charging port for charging the lithium battery (2-3) is provided on the front side wall of the bottom shell (2-1).

8. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The touch screen (2-5) is used to display the pressure data of the flexible pressure sensor (1-6) and control the start and stop of the micro air pump (3-1).

9. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The bottom surface of the micro air pump (3-1) is fixed to the right side of the top surface of the elliptical silicone airbag (1-1).

10. The adjustable shaping device for repairing skin tissue defects after tumor resection according to claim 1, characterized in that: The control terminal of the small solenoid valve (3-3) is connected to the control terminal of the control motherboard (2-2) via a wiring harness.

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