Height-adjustable wound dressing changing auxiliary frame
Patent Information
- Application Number
- CN202522478230.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-22
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-22
AI Technical Summary
[0003]针对现有技术的不足,本实用新型提供了一种可调节高度的伤口换药辅助架,解决了现有伤口换药辅助架操作复杂费力,稳定性差,易造成交叉感染风险的问题,做到了适配家庭护理的多样性需求,操作简单好上手,让居家换药从繁琐费力变为安全轻松
一、操作从复杂费力到非专业的病人家属可轻松上手:现有伤口换药辅助架的居家简化款需双手拧动螺纹杆来拆卸螺丝,操作耗时费力,医院专业支架需培训后操作,普通家属难以掌握,本装置可单手快速调节;采用伺服电机加高度预设进行电动调节,高度调节效率提升,中老年家属单手即可完成。
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Figure CN224792520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, and in particular to an adjustable height wound dressing support frame. Background Technology
[0002] Most home dressing change stents currently on the market are simplified versions of those used in hospitals, and are not adapted for home use, resulting in significant technical shortcomings. Existing home support systems generally use a manual threaded rod and buckle adjustment structure. Height adjustment requires both hands to turn the knob, which is time-consuming and has no preset settings. Some low-priced models even require disassembling the screws for adjustment. When middle-aged and elderly family members, who are the main caregivers at home, operate the system, they are prone to problems such as inadequate adjustment and back fatigue, which cannot meet the need to quickly adapt to the patient's position. Existing stents mostly use narrow bases and lightweight plastic materials, and their anti-tipping angle is far below the medical standard. When the patient moves their limbs or bears too much weight, the stent is prone to tipping over, which can cause pressure on the wound, leakage of medication, and even secondary injury. Home environments lack hospital-level disinfection conditions, and existing stents lack antibacterial design, making them prone to the growth of pathogenic bacteria such as Staphylococcus aureus and Escherichia coli, increasing the risk of cross-infection of wounds. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides an adjustable height wound dressing support frame, which solves the problems of existing wound dressing support frames being complicated and laborious to operate, having poor stability, and being prone to cross-infection risks. It adapts to the diverse needs of home care, is simple and easy to operate, and makes home dressing changes safe and easy instead of tedious and laborious.
[0004] To achieve the above objectives, this utility model provides the following technical solution: An adjustable height wound dressing support frame includes an intelligent adjustment mechanism, a support base, a fluid reservoir, a toolbox, casters, and a tray. The intelligent adjustment mechanism includes a servo motor, a height adjustment button, and an electric push rod. Casters are installed under the support base, and the toolbox and servo motor are installed inside the support base. The tray is connected to the support base via the electric push rod, and a temperature-sensitive memory foam card is placed on the tray. A fluid reservoir is fixedly installed under the tray.
[0005] Preferably, the casters installed under the support base are movable brake casters, the servo motor is fixedly installed inside the support base, and the side of the support base behind the servo motor has heat dissipation holes.
[0006] Preferably, the tool box is located in front of the servo motor and is mounted inside the support base via a slide rail at the bottom.
[0007] Preferred design: The surface of the electric push rod is provided with a protruding locking position, the top of the electric push rod is equipped with a support plate, and the connection between the electric push rod and the support base is provided with a triangular reinforcing rib.
[0008] Preferred design: The upper surface of the tray is covered with a temperature-sensitive memory foam cardboard, which is detachable and wrapped with a replaceable sterile non-woven fabric cover. The support base has a height adjustment button on the left side and a bed rail fixing clip on the right side.
[0009] Preferably, the support base adopts a square structure, and the connection between the electric push rod and the support base is provided with triangular reinforcing ribs.
[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. Operation is simplified from complex and laborious to easy for non-professional family members to use: The existing simplified home wound dressing support requires two hands to turn the threaded rod to remove the screws, which is time-consuming and laborious. The professional hospital support requires training to operate, which is difficult for ordinary family members to master. This device can be quickly adjusted with one hand; it adopts a servo motor and height preset for electric adjustment, which improves the efficiency of height adjustment, and middle-aged and elderly family members can complete it with one hand.
[0011] Second, existing home-use wound dressing support stands have narrow bases and weak anti-tipping capabilities, which can easily cause pressure sores or secondary injuries. This device adopts a square structure with triangular reinforcing ribs, which greatly improves anti-tipping and load-bearing capacity. The electric push rod has a built-in dual-modal coupling anti-fall mechanism to prevent the support from slipping accidentally and to solve the risk of secondary injury from the patient's limb falling.
[0012] Third, existing home-use wound dressing support frames lack antibacterial design, and the wound infection rate in home environments is several times higher than in hospitals. This device adopts long-lasting antibacterial protection: the tray is sprayed with a chitosan-based antibacterial coating, which inhibits common household pathogens such as Staphylococcus aureus and Escherichia coli, reducing the risk of wound infection; it is equipped with a dedicated liquid collection box to collect waste generated during dressing changes, and independent collection reduces the risk of cross-infection. Attached Figure Description
[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0014] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the present invention in its usage state; Figure 3 This is a structural diagram of the support base of this utility model; Figure 4 This is a structural diagram of the tray and temperature-sensitive memory foam cardboard of this utility model. Illustrations: 1. Tray; 2. Liquid reservoir; 3. Triangular reinforcing rib; 4. Tool box; 5. Casters; 6. Electric push rod; 7. Bed rail fixing clip; 8. Support base; 9. Temperature-sensitive memory foam cardboard; 10. Raised locking position; 11. Ventilation holes; 12. Height adjustment button; 13. Servo motor; 14. Slide rail. Detailed Implementation
[0015] This application provides an adjustable-height wound dressing support frame, which effectively solves the problems of existing wound dressing support frames being complicated and laborious to operate, having poor stability, and being prone to cross-infection risks. Through structural optimization, this device adapts to the diverse needs of home care, is simple and easy to operate, and makes home dressing changes safe and easy instead of tedious and laborious.
[0016] This device includes an intelligent adjustment mechanism, a support base 8, a bed rail fixing clip 7, a liquid storage box 2, a tool box 4, casters 5, and a tray 1. The intelligent adjustment mechanism includes a servo motor 13, a height adjustment button 12, and an electric push rod 6. A dual-mode coupling anti-fall mechanism is installed on the electric push rod 6, which is linked with the servo motor 13 to prevent accidental falls during device operation. The liquid storage box 2 has an opening at its top, the area of which is adapted to the area of the lower surface of the tray 1; the liquid storage box 2 has an openable drain port on one side, and the drain port is equipped with a sealing cap. A caster wheel 5 is installed under the support base 8. A tool box 4 and a servo motor 13 are installed inside the support base 8. The tray 1 is connected to the support base 8 through an electric push rod 6. The tray 1 is covered with a temperature-sensitive memory foam card plate 9. The device is equipped with a disposable sterile non-woven fabric cover. When in use, the sterile non-woven fabric cover is placed on top of the temperature-sensitive memory foam card plate 9. After use, the sterile non-woven fabric cover can be replaced and the temperature-sensitive memory foam card plate 9 can be removed for disinfection. A liquid storage box 2 is fixedly installed under the tray 1. The casters 5 installed under the support base 8 are movable brake casters. The servo motor 13 is fixedly installed inside the support base 8. The side of the support base 8 behind the servo motor 13 has heat dissipation holes 11. The tool box 4 is installed in front of the servo motor 13 and is installed inside the support base 8 via the slide rail 14. There are four electric push rods 6, which are evenly distributed between the tray 1 and the support base 8, and each electric push rod 6 is electrically connected to the servo motor 13 to realize synchronous extension and retraction adjustment. The electric push rod 6 has a raised locking position 10 on its surface. A support plate 1 is installed on the top of the electric push rod 6. A triangular reinforcing rib 3 is provided at the connection between the electric push rod 6 and the support base 8. A height adjustment button 12 is provided on the outer left side of the support base 8. A bed rail fixing clip 7 is fixedly installed on the right side. The height adjustment button 12 is electrically connected to the servo motor 13. The support plate 1 is made of medical grade stainless steel.
[0017] Example 1: Dressing change for a stroke-stricken, bedridden elderly patient's lower limb wound. The patient is an elderly person who has suffered a stroke and is bedridden. There is a pressure ulcer on the left lower leg, and the dressing is changed at home by the elderly person's spouse. The height of the bed needs to be adjusted to avoid the elderly person's limb movement causing the support to tip over, and at the same time reduce the risk of infection. First, the family member pushes the device to the left side of the hospital bed and fastens the bed rail fixing clip 7 on the right side of the support base 8 to the bed rail. Then, the caster wheel 5 is locked. With the square base and bed rail fixing double protection, the support is prevented from tipping over when the elderly touch it. The family member presses the height adjustment button 12 on the left side of the support base 8 with one hand. The built-in servo motor 13 starts and drives the electric push rod 6 connected to the support plate 1 to extend. When the support plate 1 rises to the same height as the elderly’s lower leg when it is naturally placed, the protruding locking position 10 on the surface of the electric push rod 6 automatically locks with the dual-mode coupling anti-fall mechanism. Before changing the dressing, family members should replace the replaceable sterile non-woven fabric cover on tray 1 to avoid residual pathogens in the old cover; gently place the elderly person's left lower leg on the temperature-sensitive memory foam cardboard 9, and the chitosan-based antibacterial coating on the surface of tray 1 will further prevent contact infection; the waste liquid generated during dressing change can be temporarily stored in the liquid storage box 2 under tray 1 to avoid contaminating the bed sheet; the tool box 4 can be pulled out from the support base 8 through the slide rail 14 to take out tools such as iodine, gauze, and tweezers; After the dressing change is completed, the family member presses the downshift button, the electric push rod retracts to the lowest position, removes the liquid storage box 2 to empty the waste liquid and clean it, replaces the new sterile non-woven fabric cover, pushes the tool box 4 back to the support base 8, unlocks the universal wheels 5 and the bed rail fixing clip 7, and pushes the device to the corner for storage.
[0018] Example 2: Home dressing change scenario for a middle-aged person with limited mobility after leg surgery The patient is a middle-aged male who underwent surgery for a tibial fracture one month ago. He has a sutured wound below his right knee and can sit up with the help of a wheelchair. He needs to have his dressing changed next to the sofa in the living room. He needs to move around flexibly while ensuring stable weight-bearing.
[0019] The family member pushes the device to the sofa in the living room. The patient sits on the sofa with his right leg hanging down naturally. The family member locks the caster wheel 5. At this time, the device strengthens the load-bearing capacity through the square support base 8 and the triangular reinforcing rib 3 at the bottom of the electric push rod 6. The triangular reinforcing rib 3 distributes the pressure of the leg to the base to prevent the electric push rod 6 from deforming due to the load.
[0020] Patients can operate the height adjustment button 12 with one hand, select the custom setting, press the raise button, and the electric push rod will slowly extend until the leg wound is fully exposed and there is no pulling sensation. After releasing the button, it will automatically lock. If the angle needs to be adjusted, the button can be finely adjusted to the ideal position to meet the need for sitting dressing changes without bending over.
[0021] When changing dressings, the fluid collection box 2 directly collects the exudate from the suture site and the waste cotton balls, preventing them from dripping onto the sofa or floor; the tool box 4 stores postoperative ointment, sterile gauze, etc., and the slide rail 14 is designed to be pulled out and used at any time, eliminating the need to place an extra dressing tray and keeping the living room environment clean.
[0022] Working principle: The first step involves using the height adjustment button 12 on the left side of the support base 8 with one hand to send a height adjustment command to the built-in servo motor 13. After receiving the command, the servo motor 13 starts and drives the electric push rod 6 connected to the tray 1 to extend and retract, thereby achieving precise and rapid height adjustment of the tray 1. The protruding locking position 10 on the surface of the electric push rod 6 cooperates with the built-in dual-mode coupling anti-fall mechanism. When the tray 1 is adjusted to the target height, the position of the electric push rod 6 is automatically locked to prevent the tray 1 from accidentally sliding down and avoid secondary injury caused by the patient's limb falling.
[0023] The second step involves a square structure for the support base 8, with triangular reinforcing ribs 3 at the connection between the electric push rod 6 and the support base 8, which significantly improves the overall structure's anti-tipping and load-bearing capacity. Once the dressing change position is determined, the casters 5 are locked to prevent the device from shifting when the patient's limbs move or bear weight. Meanwhile, the bed rail fixing clip 7 on the right side of the support base 8 can further fix the device to the bed, enhancing stability.
[0024] The third step involves spraying a chitosan-based antibacterial coating onto the surface of the tray 1, which can specifically inhibit pathogenic bacteria such as Staphylococcus aureus and Escherichia coli commonly found in the home environment, reducing the risk of cross-infection of the wound from the source of contact. The outer layer of the temperature-sensitive memory foam cardboard 9 covering the tray 1 is a replaceable sterile non-woven fabric cover. A new non-woven fabric cover is replaced before each dressing change to form an additional sterile isolation layer, which is suitable for home scenarios where professional disinfection conditions are lacking. The liquid storage box 2 fixed under the tray 1 can directly collect the residual medicine and waste dressings generated during the dressing change process, avoiding contact between waste and the wound and the environment, reducing the risk of cross-infection. At the same time, the tool box 4 inside the support base 8 can independently store dressing change tools and keep the tools clean.
[0025] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A height-adjustable wound dressing support frame, characterized in that, Includes an intelligent adjustment mechanism, a support base (8), a bed rail fixing clip (7), a liquid storage box (2), a tool box (4), casters (5), and a tray (1); The intelligent adjustment mechanism includes a servo motor (13), a height adjustment button (12), and an electric push rod (6). The electric push rod (6) is equipped with a dual-modal coupling anti-fall mechanism, which is linked with the servo motor (13). The support base (8) is a square structure, and a caster wheel (5) is installed below it. The caster wheel (5) is a movable wheel with a braking function. A servo motor (13) is fixedly installed inside the support base (8), and a heat dissipation hole (11) is provided on the side of the support base (8) behind the servo motor (13); The toolbox (4) is retractable and installed inside the support base (8) via the slide rail (14), and is located in front of the servo motor (13); The pallet (1) is connected to the support base (8) via an electric push rod (6). A triangular reinforcing rib (3) is provided at the connection between the electric push rod (6) and the support base (8). A protruding locking position (10) is provided on the surface of the electric push rod (6). The protruding locking position (10) is adapted to the dual-mode coupling anti-fall mechanism. The upper surface of the tray (1) is covered with a temperature-sensitive memory foam cardboard (9). The outer layer of the temperature-sensitive memory foam cardboard (9) can be covered with a disposable sterile non-woven fabric cover. The temperature-sensitive memory foam cardboard (9) is a detachable structure. A liquid storage box (2) is fixedly installed below the tray (1). A height adjustment button (12) is provided on the outer wall of the left side of the support base (8). The height adjustment button (12) is electrically connected to the servo motor (13). The right outer wall of the support base (8) is fixedly fitted with a bed rail fixing clip (7).
2. The adjustable height wound dressing support frame as described in claim 1, characterized in that, There are four electric push rods (6), which are evenly distributed between the tray (1) and the support base (8). Each electric push rod (6) is electrically connected to the servo motor (13) to achieve synchronous extension and retraction adjustment.
3. The adjustable height wound dressing support frame as described in claim 2, characterized in that, The caster wheel (5) installed under the support base (8) is a movable brake wheel. The servo motor (13) is fixedly installed inside the support base (8). The side of the support base (8) behind the servo motor (13) has heat dissipation holes (11).
4. The adjustable height wound dressing support frame as described in claim 3, characterized in that, The tray (1) is made of medical grade stainless steel, and the upper surface of the tray (1) is coated with a chitosan-based antibacterial coating.
5. The adjustable height wound dressing support frame as described in claim 4, characterized in that, The liquid storage box (2) has an opening at its top, the area of which is adapted to the area of the lower surface of the tray (1); the liquid storage box (2) has an openable drain port on one side, and a sealing cap is provided at the drain port.