Orthopedic leg dressing change support frame

Abstract

This utility model discloses an orthopedic leg dressing support frame, relating to the field of medical device technology. It includes a frame plate conforming to the leg contour, with an installation cavity extending along the leg contour. The inner top wall of the installation cavity has multiple axially arrayed connecting holes that penetrate the inner surface of the frame plate. Telescopic units are also included, with multiple telescopic units co-located within the installation cavity and independently controllable. The telescopic end of each telescopic unit penetrates the corresponding connecting hole and protrudes from the upper surface of the frame plate to form a support point. These support points are joined together to form a bearing surface conforming to the leg contour of the inner surface of the frame plate. A control module is electrically connected to each telescopic unit. This utility model achieves the technical effects of preventing pressure ulcers, providing stable support, and ensuring comfortable fit through a synergistic design of dynamic pressure regulation, conformal support, structural optimization, and biocompatibility. It specifically addresses the pain point of prolonged static support for patients during orthopedic leg dressing changes.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an orthopedic leg dressing support frame. Background Technology

[0002] Leg supports are orthopedic devices used to help patients maintain leg stability and comfort during dressing changes. They are typically used after lower limb surgery, especially knee or ankle surgery, when patients need to change dressings or clean wounds. Leg supports can help elevate or hold the affected limb in a proper position, preventing pain or further strain on the wound.

[0003] During leg dressing changes or rehabilitation, existing fixation braces that support the same area for extended periods can lead to excessive pressure on local tissues, causing pressure sores or poor blood circulation, which is detrimental to wound healing and patient comfort. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an orthopedic leg dressing support frame.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An orthopedic leg dressing support frame includes:

[0007] A frame plate with a leg-shaped profile has a mounting cavity extending along the leg profile. The inner top wall of the mounting cavity has multiple axially arrayed connecting holes that penetrate the inner surface of the frame plate.

[0008] Telescopic units, multiple telescopic units are arranged in the same direction as each connecting hole in the installation cavity and can be controlled independently. The telescopic end of each telescopic unit passes through the corresponding connecting hole and protrudes from the inner surface of the frame plate to form a support point. The support points are spliced ​​together to form a bearing surface that conforms to the leg contour of the inner surface of the frame plate.

[0009] The control module is electrically connected to each telescopic unit. The control module drives each telescopic unit to dynamically reconstruct the bearing surface by partitioning or randomly expanding and contracting through each support point.

[0010] Preferably, the telescopic end of the telescopic unit has a cylindrical longitudinal section, and its top end is provided with a downwardly recessed arc-shaped groove, with a smooth transition between adjacent arc-shaped grooves in the bearing surface.

[0011] Preferably, an axially continuous gap I is formed between the inner surface of the frame plate and the bearing surface, and the depth of the gap I is greater than the maximum retraction stroke of the telescopic unit's telescopic end.

[0012] Preferably, a second gap, roughly in the shape of an isosceles trapezoid, is formed between the telescopic ends of adjacent telescopic units. The top width of the second gap is smaller than the bottom width, and the sidewall forms an acute angle with the inner surface of the frame plate.

[0013] Preferably, a biocompatible contact layer is fixed to the top of the support point, and the surface of the contact layer has a biomimetic texture.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention achieves the technical effects of preventing pressure sores, providing stable support, and ensuring comfort through the synergistic design of dynamic pressure regulation, contour support, structural optimization, and biocompatibility. It specifically addresses the pain point of patients needing prolonged static support during orthopedic leg dressing changes. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 For the present utility model Figure 2 Another schematic diagram of the state structure.

[0020] The diagram is labeled as follows: 1. Frame plate; 11. Mounting cavity; 12. Connecting hole; 2. Telescopic unit; 21. Support point; 22. Bearing surface; 3. Control module. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] Example

[0023] like Figures 1-3 As shown, an orthopedic leg dressing support frame includes:

[0024] The frame plate 1, which mimics the leg contour, has a mounting cavity 11 extending along the leg contour. The inner top wall of the mounting cavity 11 has multiple axially arrayed connecting holes 12 that penetrate the inner surface of the frame plate 1.

[0025] Telescopic unit 2, multiple telescopic units 2 are arranged in the same direction as each connecting hole 12 in the mounting cavity 11 and can be controlled independently. The telescopic end of each telescopic unit 2 passes through the corresponding connecting hole 12 and protrudes from the upper surface of the frame plate 1 to form a support point 21. The support points 21 are spliced ​​together to form a bearing surface 22 that conforms to the leg contour of the inner surface of the frame plate 1.

[0026] The control module 3 is electrically connected to each telescopic unit 2. The control module 3 drives each telescopic unit 2 to dynamically reconfigure the bearing surface 22 by expanding or randomly expanding through each support point 21.

[0027] The patient rests their leg on the bearing surface 22 of the inner surface of the support plate 1. When the dressing change time is too long, the independent telescopic unit 2 is driven by the control module 3 to retract / extend the support point 21 irregularly or regularly, allowing the bearing surface 22 to dynamically reconfigure. This periodically changes the contact pressure distribution between the leg and the support point 21 without affecting the stability of the dressing change. This avoids prolonged fixed pressure on specific parts of the leg. Orthopedic patients are prone to local tissue ischemia and hypoxia due to leg immobilization and prolonged static support, which can lead to pressure sores. The dynamic pressure distribution can alternately release local pressure, promote blood circulation, reduce the risk of pressure sores from the root, and at the same time relieve local muscle fatigue and improve patient tolerance.

[0028] like Figure 2 As shown, the longitudinal section of the telescopic end of the telescopic unit 2 is cylindrical, and its top end is provided with a downward-recessed arc-shaped groove, and there is a smooth transition between adjacent arc-shaped grooves in the bearing surface 22.

[0029] The support plate 1 is designed to mimic the leg contour, with the bearing surface 22 conforming to the leg contour in the initial state. The arc-shaped groove and adjacent smooth transition of the telescopic unit 2 further conform to the curved surface of the leg. Through the contour-mimicking design and arc-shaped contact, the contact area between the support point 21 and the leg is increased, dispersing local pressure. The smooth transition avoids friction / pressure from sharp edges on the skin, ensuring that the leg does not easily slip during dressing changes and guaranteeing operational stability. At the same time, the dynamically reconfigurable bearing surface 22 can adapt to different patients' leg shapes, improving adaptability.

[0030] like Figure 2 As shown, a gap 2 in the shape of an isosceles trapezoid is formed between the telescopic ends of adjacent telescopic units 2. The top width of the gap 2 is smaller than the bottom width, and the side wall forms an acute angle with the inner surface of the frame plate 1.

[0031] The isosceles trapezoidal gap 2 serves as the basic airflow channel. Its wide bottom provides ample entry for airflow, facilitating the smooth entry of external air into the channel. The narrow top and its proximity to the leg contact area allow the airflow to accelerate as the space contracts within the channel, propelling it upwards and precisely directing it to the contact gap between the leg and support point 21. The acute-angled sidewalls act as guide slopes, guiding the airflow upwards along the sidewalls and preventing it from stagnating at the bottom of the channel, ensuring that the airflow efficiently reaches the skin surface of the leg.

[0032] like Figure 3 As shown, an axially continuous gap 1 is formed between the inner surface of the frame plate 1 and the bearing surface 22, and the depth of the gap 1 is greater than the maximum retraction stroke of the telescopic end of the telescopic unit 2.

[0033] When the telescopic end of telescopic unit 2 reciprocates within the gap, its movement creates periodic disturbances to the airflow, disrupting the original laminar flow and causing turbulence in the axial direction. Sufficient depth provides a buffer space for the airflow, preventing obstruction due to space limitations and ensuring stable turbulence. When the telescopic end retracts, a portion of the space within the gap is occupied, pushing the airflow outwards; when it extends, the space is released, allowing external airflow to quickly replenish it, creating a dynamic, breathing-like airflow exchange.

[0034] The structural design of gaps one and two enhances airflow without sacrificing support stability. The narrow top width of gap two reduces the segmentation of the bearing surface 22 formed by the splicing of support points 21, avoiding a feeling of suspension between support points 21 due to excessively wide gaps, and ensuring even force distribution on the leg. The depth adaptability of gap one ensures that the telescopic unit 2 extends and retracts without mechanical jamming, guaranteeing the stability of dynamic support while providing a structural basis for airflow turbulence, achieving compatibility between support stability and efficient ventilation. Without affecting the stability of dressing changes on the leg, airflow optimization significantly improves the local microenvironment, reduces skin discomfort caused by prolonged contact, and enhances patient tolerance, making it particularly suitable for patients with sensitive skin after orthopedic surgery who require long-term immobilization.

[0035] like Figure 2 As shown, a biocompatible contact layer is fixed to the top of the support point 21, and the surface of the contact layer has a biomimetic texture.

[0036] The contact layer is made of medical-grade silicone or polyurethane. It comes into direct contact with the leg skin, meeting biosafety standards to avoid skin allergies or irritation, making it especially suitable for patients with sensitive skin after surgery. The biomimetic textured surface of the contact layer mimics the mechanical properties of natural contact, increasing friction to prevent leg slippage and improve stability. Simultaneously, the textured surface disperses local pressure and promotes skin microcirculation through gentle mechanical stimulation. The biomimetic texture also reduces sweat retention, increases breathability, and enhances contact comfort.

[0037] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An orthopedic leg dressing support frame, characterized in that, include: A frame plate (1) with a leg-shaped profile is provided inside, with a mounting cavity (11) extending along the leg profile. The inner top wall of the mounting cavity (11) has multiple axially arrayed connecting holes (12) that penetrate the inner surface of the frame plate (1). Telescopic unit (2), multiple telescopic units (2) are arranged in the same direction as each connecting hole (12) in the mounting cavity (11) and can be controlled independently. The telescopic end of each telescopic unit (2) passes through the corresponding connecting hole (12) and protrudes out of the inner surface of the frame plate (1) to form a support point (21). Each support point (21) is spliced ​​together to form a bearing surface (22) that conforms to the leg contour of the inner surface of the frame plate (1). The control module (3) is electrically connected to each telescopic unit (2). The control module (3) drives each telescopic unit (2) to dynamically reconstruct the bearing surface (22) by partitioning or randomly telescopicating through each support point (21).

2. The orthopedic leg dressing support frame according to claim 1, characterized in that: The telescopic unit (2) has a cylindrical longitudinal section at its telescopic end, with a downward-concave arc-shaped groove at its top, and a smooth transition between adjacent arc-shaped grooves in the bearing surface (22).

3. The orthopedic leg dressing support frame according to claim 2, characterized in that: A continuous axial gap is formed between the inner surface of the frame plate (1) and the bearing surface (22), and the depth of the gap is greater than the maximum retraction stroke of the telescopic unit (2).

4. The orthopedic leg dressing support frame according to claim 3, characterized in that: A gap two, which is similar to an isosceles trapezoid, is formed between the telescopic ends of adjacent telescopic units (2). The top width of the gap two is smaller than the bottom width, and the side wall forms an acute angle with the inner surface of the frame plate (1).

5. The orthopedic leg dressing support frame according to claim 4, characterized in that: The top of the support point (21) is fixed with a biocompatible contact layer, the surface of which has a biomimetic texture.

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