Orthosis for preventing underarm scar contracture of burn patient
By designing a breathable orthotic structure and using Velcro for fixation, the problem of poor breathability in axillary scar contracture orthotics was solved, achieving the effects of dryness, ventilation, and adjustable fixation at the burn site, thus promoting patient recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-08
AI Technical Summary
Existing axillary scar contracture orthotics have poor breathability, leading to dampness at the burn site, making it prone to infection and affecting recovery.
An orthosis was designed, comprising a neck fixation strip, shoulder support, and underarm orthotic mechanism. It is secured with Velcro, equipped with ventilation holes and adjustable curved supports to ensure dryness and ventilation, and applies pressure to the scar site through rubber studs and curved contact mesh components.
It improves the breathability of the orthosis, keeps the burn area dry, prevents infection, promotes recovery, and can be adjusted and fixed according to the patient's body shape to avoid scar contracture.
Smart Images

Figure CN224206946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orthotics, specifically an orthotics for preventing axillary scar contracture in burn patients. Background Technology
[0002] Burns generally refer to tissue damage caused by heat, including hot liquids (water, soup, oil, etc.), steam, high-temperature gases, flames, incandescent liquid or solid metals (such as molten steel, steel ingots), and strong radioactive radiation. They mainly refer to the skin and / or mucous membranes, and in severe cases, they can also damage subcutaneous and / or submucosal tissues, such as muscles, bones, joints, and even internal organs.
[0003] In response to this, a utility model patent with authorization announcement number CN 208756283U discloses a combined orthosis for the prevention and treatment of axillary scar contracture in burn patients. This orthosis can progressively stretch the scar according to the degree of axillary scar contracture to improve the problem and gradually increase shoulder abduction range of motion, unlike conventional shoulder abduction orthoses which can only extend to about 90°. The utility model includes an orthosis body, a front adjustment component, a rear adjustment component, a carrying strap, and a hand support. The orthosis body includes two leg clamping units, each a rigid plate bent into a U-shape with opposite openings to fit the waist. The two waist clamping units are connected at the front and rear via a front adjustment component. Each leg clamping unit has a carrying strap connected to its front and rear sides. Each leg clamping unit has a hand support hinged to the center of its outer side. The front end of the hand support has a hand fixation component for securing the arm.
[0004] However, existing orthotics for axillary scar contracture have poor breathability. Due to the special location of the burns in the patient's armpit, the area is prone to moisture and cannot be kept dry and ventilated. This makes the burn area susceptible to wound infection, affecting the recovery of the affected area and making the axillary scar contracture more severe. Utility Model Content
[0005] To address the aforementioned problems, the purpose of this invention is to provide an orthotic device for preventing axillary scar contracture in burn patients, thereby resolving the issues raised in the background section.
[0006] To achieve the above objectives, this utility model proposes an orthosis for preventing axillary scar contracture in burn patients, including a neck fixation strip, wherein a shoulder support is fixedly provided on the side of the bottom end of the neck fixation strip;
[0007] The shoulder support has a first connecting button fixed at both ends on both sides. Each first connecting button has a first tensioning strip on its exterior. Each first tensioning strip has a first movable column rotatably connected to one side. An underarm orthopedic mechanism is provided between every two opposing first movable columns. The underarm orthopedic mechanism includes an arc-shaped support. The inner wall of the arc-shaped support has adjustment elongated holes on both sides. Each adjustment elongated hole has two limiting sliders slidably connected to it. An arc-shaped pad is fixed between every two opposing limiting sliders. A positioning screw groove at one end of each limiting slider is threaded with a positioning knob. A rubber stud is threaded into a compression screw hole in the middle of the inner wall of the arc-shaped support. One end of the rubber stud is rotatably connected to an arc-shaped contact wire component.
[0008] As a preferred embodiment of this utility model, a Velcro fastener is fixedly provided on one side of the outer wall of the neck fixing strip, and a Velcro female fastener corresponding to the Velcro fastener is fixedly provided on one side of the inner wall of the neck fixing strip.
[0009] As a preferred technical solution of this utility model, a first snap-fit post is provided in the first snap-fit groove on both sides of the top of the arc-shaped pad. A protective protrusion is fixedly provided at the top of each first snap-fit post. A protective strip is fixedly provided between two protective protrusions. A plurality of evenly distributed second snap-fit posts are fixedly provided on the outer wall of the protective strip. The plurality of second snap-fit posts are snapped into the plurality of second snap-fit grooves opened on the inner wall of the arc-shaped pad.
[0010] As a preferred technical solution of this utility model, a connecting plate is fixedly provided at the other end of each of the rubber studs, and multiple evenly distributed vent holes are opened on the surface of each of the arc-shaped support members.
[0011] As a preferred technical solution of this utility model, each of the first tensioning strips has a plurality of evenly distributed first adjustment holes on its surface, wherein the inner wall of one of the first adjustment holes is interlocked with the outer wall of the first connecting button.
[0012] As a preferred technical solution of this utility model, both ends of the shoulder support are fixedly provided with flexible connectors, and one end of each flexible connector is fixedly provided with a shoulder force-bearing component.
[0013] As a preferred technical solution of this utility model, each of the shoulder force-bearing components is fixedly provided with a second connecting button on both sides, each of the second connecting buttons is provided with a second tensioning strip on the outside, and each of the second tensioning strips is rotatably connected to a second movable column on one side. One end of each of the two second movable columns is fixedly connected to both sides of the arc-shaped support component. The surface of the second tensioning strip is provided with a plurality of evenly distributed second adjustment holes, and the inner wall of one of the second adjustment holes is inserted and connected to the outer wall of the second connecting button.
[0014] Compared with the prior art, this utility model provides an orthotic device for preventing axillary scar contracture in burn patients, which has the following beneficial effects:
[0015] 1. This orthosis for preventing axillary scar contracture in burn patients includes an axillary orthotic mechanism located between first movable columns connected by a first tensioning strip. A limiting slider is slidably connected within an adjustment hole in the arc-shaped support. An arc-shaped pad is connected to the limiting slider, and an arc-shaped contact mesh is rotatably connected to a rubber stud. The arc-shaped support has ventilation holes, which improves the orthosis's breathability, ensuring the burn area is dry and ventilated, promoting recovery. The arc-shaped pad can be adjusted according to the location of the axillary burn to ensure a gap between the arc-shaped support and the affected area. Simultaneously, the arc-shaped support and the arc-shaped contact mesh exert pressure on the scar, improving scar contracture while ensuring breathability.
[0016] 2. This orthosis for preventing axillary scar contracture in burn patients has a neck fixation strip connected to both a Velcro fastener and a Velcro inner fastener. The neck fixation strip is connected to a shoulder strap. A first adjustment hole on the first tensioning strip interlocks with a first connecting button on the shoulder strap. A flexible connector on the shoulder strap connects to a shoulder-load-bearing component. A second adjustment hole on the second tensioning strip interlocks with a second connecting button on the shoulder-load-bearing component. This allows the orthosis to be adjustable according to the patient's body shape, ensuring its fixation while maintaining pressure on the axillary burn area, thus correcting the axillary scar and preventing scar contracture. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the connection structure of the shoulder strap of this utility model;
[0020] Figure 3 This is a schematic diagram of the axillary orthotic mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the connection structure of the arc-shaped pad of this utility model.
[0022] In the diagram: 1. Neck support strip; 2. Shoulder support; 3. First connecting button; 4. First tensioning strip; 5. First adjustment hole; 6. Underarm orthotic mechanism; 601. Arc-shaped support; 602. Adjustment hole; 603. Arc-shaped pad; 604. Rubber stud; 605. Arc-shaped contact wire; 606. Protective protrusion; 607. Protective strip; 608. Limiting slider; 609. Positioning knob; 610. Vent hole; 7. Flexible connector; 8. Shoulder bearing component; 9. Second connecting button; 10. Second tensioning strip; 11. Second adjustment hole; 12. Velcro fastener; 13. Velcro fastener. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1-4 As shown, an embodiment of this utility model proposes an orthosis for preventing axillary scar contracture in burn patients, including a neck fixation strip 1, and a shoulder support 2 fixedly provided on the side of the bottom end of the neck fixation strip 1.
[0025] The shoulder support 2 has two ends of each shoulder piece fixed with a first connecting button 3. Each first connecting button 3 has a first tensioning strip 4 on its outside. Each first tensioning strip 4 has a first movable column rotatably connected to one side. An underarm orthotic mechanism 6 is provided between every two opposing first movable columns. The underarm orthotic mechanism 6 includes an arc-shaped support 601. The inner wall of the arc-shaped support 601 has adjustment holes 602 on both sides. Each adjustment hole 602 has two limiting sliders 608 slidably connected to it. An arc-shaped pad 603 is fixed between every two opposing limiting sliders 608. A positioning screw groove at one end of each limiting slider 608 is threaded with a positioning knob 609. A rubber stud 604 is threaded into a compression screw hole in the middle of the inner wall of the arc-shaped support 601. An arc-shaped contact wire 605 is rotatably connected to one end of the rubber stud 604. The outer wall of the neck fixing strip 1 has one The side is fixed with a Velcro tab 12, and the inner wall of the neck fixing strip 1 is fixed with a Velcro female tab 13 corresponding to the Velcro tab 12. The first snap-fit grooves on both sides of the top of the arc-shaped pad 603 are provided with first snap-fit posts. The top of each first snap-fit post is fixed with a protective protrusion 606. A protective strip 607 is fixed between two protective protrusions 606. Multiple evenly distributed second snap-fit posts are fixed on the outer wall of the protective strip 607. The multiple second snap-fit posts are respectively snapped with multiple second snap-fit grooves opened on the inner wall of the arc-shaped pad 603. The other end of each rubber stud 604 is fixed with a connecting plate. Multiple evenly distributed vent holes 610 are opened on the surface of each arc-shaped support 601. Multiple evenly distributed first adjustment holes 5 are opened on the surface of each first tensioning strip 4. The inner wall of one of the first adjustment holes 5 is inserted and connected to the outer wall of the first connecting button 3.
[0026] Both ends of the shoulder support 2 are fixedly provided with flexible connectors 7. One end of each flexible connector 7 is fixedly provided with a shoulder bearing member 8. Both sides of each shoulder bearing member 8 are fixedly provided with second connecting buttons 9. A second tensioning strip 10 is provided on the outside of each second connecting button 9. A second movable column is rotatably connected to one side of each second tensioning strip 10. One end of each of the two second movable columns is fixedly connected to both sides of the arc-shaped support 601. Multiple evenly distributed second adjustment holes 11 are opened on the surface of the second tensioning strip 10. The inner wall of one of the second adjustment holes 11 is inserted and connected to the outer wall of the second connecting button 9.
[0027] Working principle: When using this orthosis, the axillary orthotic mechanism 6 is in the detached state. The neck fixation strip 1 connected to the shoulder sling 2 is put off the patient's head, and the shoulder sling 2 is placed on the patient's shoulder. At the same time, the neck fixation strip 1 can be fixed to the patient's neck by the cooperation of the Velcro 12 and the Velcro 13. The shoulder support member 8, connected to the flexible connector 7, rests on the shoulder. At this time, the person places the axillary orthotic mechanism 6 under the patient's armpit, loosens the positioning knob 609, and moves the arc-shaped pad 603. The limiting slider 608 moves within the adjustment elongated hole 602 opened in the arc-shaped support member 601. When the arc-shaped pad 603 moves close to the scar, the positioning knob 609 can be tightened. At this time, the two arc-shaped pads 603 are respectively supported in the normal position under the armpit. The person can place gauze or other protective materials on the arc-shaped contact mesh member 605 and turn the rubber stud 604 to ensure that the arc-shaped contact mesh member 605 applies pressure to the scar. At the same time, the first tensioning bar 4 is moved, and the first connecting button 3 is inserted into the appropriate first adjustment hole 5. Similarly, the second connecting button 9 is inserted into the second adjustment hole 11 opened in the second tensioning bar 10. This allows the axillary orthotic mechanism 6 to apply pressure to the affected area under the armpit, improving scar contracture while ensuring the affected area is dry and ventilated, promoting recovery.
[0028] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An orthotic device for preventing axillary scar contracture in burn patients, comprising a neck fixation strip (1), wherein a shoulder support (2) is fixedly provided on the side of the bottom end of the neck fixation strip (1), characterized in that: The shoulder strap (2) has a first connecting button (3) fixed at both ends on both sides. Each first connecting button (3) has a first tensioning strip (4) on its outside. Each first tensioning strip (4) has a first movable column rotatably connected to one side. An underarm orthopedic mechanism (6) is provided between each pair of opposite first movable columns. The underarm orthopedic mechanism (6) includes an arc-shaped support (601). The inner wall of the arc-shaped support (601) has adjustment elongated holes (602) on both sides. Two limiting sliders (608) are slidably connected inside the long hole (602). An arc-shaped pad (603) is fixed between each pair of opposing limiting sliders (608). A positioning knob (609) is threaded into a positioning screw groove at one end of each limiting slider (608). A rubber stud (604) is threaded into a pressing screw hole in the middle of the inner wall of the arc-shaped support (601). An arc-shaped contact wire component (605) is rotatably connected to one end of the rubber stud (604).
2. The orthotic device for preventing axillary scar contracture in burn patients according to claim 1, characterized in that: A Velcro tab (12) is fixedly provided on one side of the outer wall of the neck fixing strip (1), and a Velcro tab (13) corresponding to the Velcro tab (12) is fixedly provided on one side of the inner wall of the neck fixing strip (1).
3. The orthotic device for preventing axillary scar contracture in burn patients according to claim 1, characterized in that: First snap-fit posts are provided in the first snap-fit grooves on both sides of the top of the arc-shaped pad (603). A protective protrusion (606) is fixedly provided at the top of each first snap-fit post. A protective strip (607) is fixedly provided between two protective protrusions (606). A plurality of evenly distributed second snap-fit posts are fixedly provided on the outer wall of the protective strip (607). The plurality of second snap-fit posts are respectively snapped into the plurality of second snap-fit grooves opened on the inner wall of the arc-shaped pad (603).
4. An orthotic device for preventing axillary scar contracture in burn patients according to claim 1, characterized in that: Each of the rubber studs (604) has a connecting disc fixed at the other end, and each of the arc-shaped support members (601) has multiple evenly distributed vent holes (610) on its surface.
5. An orthotic device for preventing axillary scar contracture in burn patients according to claim 1, characterized in that: Each of the first tensioning bars (4) has a plurality of evenly distributed first adjustment holes (5) on its surface, and the inner wall of one of the first adjustment holes (5) is interlocked with the outer wall of the first connecting button (3).
6. An orthotic device for preventing axillary scar contracture in burn patients according to claim 1, characterized in that: Both ends of the shoulder support (2) are fixedly provided with flexible connectors (7), and one end of each flexible connector (7) is fixedly provided with a shoulder bearing member (8).
7. An orthotic device for preventing axillary scar contracture in burn patients according to claim 6, characterized in that: Each of the shoulder force-bearing components (8) is fixedly provided with a second connecting button (9) on both sides. Each of the second connecting buttons (9) is provided with a second tensioning strip (10) on the outside. Each of the second tensioning strips (10) is rotatably connected to a second movable column on one side. One end of each of the two second movable columns is fixedly connected to both sides of the arc-shaped support (601). The surface of the second tensioning strip (10) is provided with a plurality of evenly distributed second adjustment holes (11). The inner wall of one of the second adjustment holes (11) is inserted and connected to the outer wall of the second connecting button (9).
Citation Information
Patent Citations
A orthopedic ware of combination formula for preventing and treatment burn patient armpit scar contractura
CN208756283U