Medical adjustable fixing band for knee joint nursing

Abstract

The invention discloses a medical knee joint nursing adjustable fixing band in the technical field of medical auxiliary instruments, which comprises a thigh fastener and a shank fastener, the thigh fastener and the shank fastener are both provided with bandages, the thigh fastener and the shank fastener are hinged, and the hinged part is provided with an adjusting angle plate for adjusting the angle of the thigh fastener and the shank fastener. A waterproof component for preventing the knee joint from being wetted is adhered to one end, close to the shank fixing piece, of the thigh fixing piece; the waterproof assembly comprises a buffer layer, the two ends of the buffer layer are bonded to the two ends, close to each other, of the thigh fixing piece and the shank fixing piece respectively, a protective shell is arranged on the surface of the buffer layer, and a plurality of ventilation assemblies for guaranteeing ventilation of knee joints are evenly arranged on the surface of the protective shell. Through the protection shell and the ventilation assembly, the air permeability is ensured while wounds at the knee joints of the patient are prevented from being stained with water, and therefore safe and reasonable protection is provided.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, and in particular to an adjustable fixing belt for medical knee joint care. Background Art

[0002] The knee joint is one of the most complex and most vulnerable joints in the human body, and its stability is crucial for normal walking and movement. Therefore, after knee surgery, an adjustable fixation belt is generally used to provide stable and appropriate support for the knee joint, which helps to limit the range of motion of the knee joint and prevent the injured part from aggravating the injury due to excessive activity. This is especially important for patients with knee injuries such as ligament strain and meniscus injury.

[0003] After knee surgery or during injury rehabilitation, using an adjustable strap can help keep the joint in a stable position and promote wound healing. At the same time, by gradually adjusting the angle and tightness of the strap through the adjustment dial on it, the patient can be guided to perform appropriate flexion and extension exercises, thereby accelerating the recovery process.

[0004] Existing adjustable fixation belts are generally composed of thigh and calf fixation belts and corresponding straps to prevent excessive movement of the patient's knee joint after surgery, which is not conducive to recovery. The existing fixation belt is fixed to the patient's thigh and calf through the above structure to limit the movement of the knee joint. At the same time, in order to ensure ventilation at the knee joint, these fixation belts usually expose the knee joint. However, when there is a wound at the knee joint after surgery, the exposed knee joint may accidentally get some liquid on the wound when the patient is performing daily activities (such as going to the toilet, wiping the body, and other activities that may involve liquid contact), thereby causing wound infection and secondary injury.

[0005] Therefore, the present invention provides an adjustable fixation belt for medical knee joint care to solve the above problems. Summary of the invention

[0006] In order to solve the above problems, the present invention provides an adjustable fixation belt for medical knee joint care, which prevents the wound at the patient's knee joint from getting wet while ensuring its breathability through a protective shell and a breathable component, thereby providing safe and reasonable protection.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: an adjustable fixation belt for medical knee joint care, comprising a thigh fixture and a calf fixture, both of which are provided with straps, the thigh fixture and the calf fixture are hinged and an adjustment angle plate for adjusting the angles of the thigh fixture and the calf fixture is provided at the hinge, and a waterproof component for preventing the knee joint from getting wet is bonded to one end of the thigh fixture close to the calf fixture;

[0008] The waterproof component includes a buffer layer, two ends of which are respectively bonded to the two ends of the thigh and calf fasteners close to each other, a protective shell is arranged on the surface of the buffer layer, and a number of breathable components are evenly arranged on the surface of the protective shell to ensure ventilation at the knee joint.

[0009] Principle of the basic solution: The patient's knee joint is fixed and supported by the thigh fixture and the calf fixture, and the angle of the thigh fixture and the calf fixture is adjusted by the adjustment angle plate to adapt to the different stages or needs of the patient; when the patient is doing something that may cause the knee joint to come into contact with liquids such as tap water, the protective shell is used to block it from the outside. At the same time, the breathable component on the protective shell is used to ensure ventilation at the knee joint while waterproofing and reducing infection, thereby reducing the possibility of infection caused by stuffiness at the knee joint.

[0010] The above scheme has the following beneficial effects:

[0011] 1. Compared with the existing technology, this solution effectively solves the problem that the patient's knee joint may come into contact with water when performing daily activities (such as taking a bath) by adding waterproof components (protective shell and breathable components), greatly reducing the risk of infection caused by water contact, and can also prevent some foreign objects from colliding with the knee joint, further ensuring the support and protection of the knee joint. At the same time, the breathable components in the waterproof components ensure good ventilation in the knee joint area, avoiding the stuffy discomfort caused by long-term wrapping, further reducing the possibility of infection, and improving the comfort of patients.

[0012] 2. This solution, through the articulated design of the thigh and calf hardware and the introduction of the adjustable angle plate, can flexibly adapt to the patient's rehabilitation needs at different stages or specific body position requirements, provide stable and comfortable support for the knee joint, and help speed up the rehabilitation process.

[0013] Furthermore, the ventilation components include a first channel and a second channel opened in the protective shell, the diameter of the connecting point between the first channel and the second channel is smaller than the diameter of the first channel and the second channel, the first channel is connected to the outside of the protective shell away from one end of the second channel, and the second channel is connected to the inside of the protective shell away from one end of the first channel.

[0014] Beneficial effect: The design of the first channel and the second channel enables the air inside and outside the protective shell to interact. At the same time, when the air passes through the connection between the first channel and the second channel (Venturi tube structure), the air flow rate will be accelerated due to the change in the channel cross-section. This accelerated airflow can more effectively remove the heat and moisture inside the protective shell, thereby enhancing the ventilation effect of the knee joint area, reducing the stuffiness and improving the patient's comfort.

[0015] Furthermore, the first channel and the second channel are both arranged obliquely, and an end of the first channel close to the outer surface of the protective shell is located below an end of the second channel close to the inner surface of the protective shell.

[0016] Beneficial effect: The first channel and the second channel are arranged at an angle, so that when the liquid gathers in the first channel and the second channel, it flows to the outside of the protective shell along the first channel and the second channel due to the gravity of the liquid itself. At the same time, it can also guide the air to enter and flow out of the protective shell at a certain angle, so that the air can accelerate and decelerate more smoothly when flowing through the Venturi tube structure, reducing the resistance and turbulence of the airflow in the channel, thereby improving the ventilation efficiency. During the knee joint care process, some sweat or moisture may accumulate inside the protective shell. The inclined first channel and the second channel help these liquids to naturally flow out of the protective shell under the action of gravity, reducing the possibility of internal water accumulation and further reducing the risk of infection.

[0017] Furthermore, a movable groove is opened at the connecting point of the first channel and the second channel, and a movable rod and a telescopic layer are arranged in the movable groove. The top of the telescopic layer is bonded to the top wall of the movable groove, and the bottom of the telescopic layer is bonded to the top of the movable rod. The bottom end of the movable rod is fixedly connected with a spring, and the other end of the spring is fixedly connected to the bottom of the movable groove, and the movable rod is vertically slidably matched with the movable groove; the first channel is connected to the second channel.

[0018] Beneficial effect: The movable rod can move up and down in the movable slot under the action of the spring, thereby dynamically adjusting the ventilation volume between the first channel and the second channel. When the external environment or patient needs change, this design can adaptively adjust the ventilation effect to ensure that the inside of the protective shell always maintains a suitable temperature and humidity.

[0019] Furthermore, a plurality of auxiliary channels are opened in the protective shell and are located below the second channel. One end of the auxiliary channels is connected to the movable groove and the other end is connected to the inside of the protective shell. An expansion component is provided inside the telescopic layer for expanding the telescopic layer. When the expansion component is not expanded, the auxiliary channel is not connected to the first channel; when the expansion component is expanded, the auxiliary channel is connected to the first channel.

[0020] Beneficial effects: By introducing the auxiliary channel and the expansion component, multi-level control of the ventilation inside the protective shell is achieved. When the expansion component is in different states, the auxiliary channel can be selectively opened or closed to adjust the ventilation volume and ventilation path to meet different rehabilitation needs and patient comfort requirements. When the ambient temperature rises, a stronger ventilation effect is required. The expansion component expands the spring to compress it, thereby opening the auxiliary channel; when the expansion component is restored, the spring is used to quickly reset the moving rod to block the auxiliary channel and the first channel. This multi-stage ventilation design helps to distribute air flow more evenly, reduce local overheating or overcooling, and improve patient comfort.

[0021] Furthermore, the diameter of one end of the auxiliary channel close to the inner wall of the protective shell is larger than that of the other end.

[0022] Beneficial effect: The conical or bell-shaped design helps reduce the resistance of air when it flows into the auxiliary channel. When air enters the smaller channel from the larger channel (flowing from the inside to the outside), the flow rate will gradually increase. With the Venturi tube structure of the first channel and the second channel, the smaller channel will generate negative pressure, further moving the air inside the protective shell outward, so that the air can flow more smoothly, further improving the ventilation efficiency.

[0023] Furthermore, the expansion component includes a telescopic layer filled with expansion balls whose volume increases when heated.

[0024] Beneficial effect: When the temperature inside the protective shell rises due to the patient's activities or the external environment, the expansion ball will increase in volume due to the heat, thereby pushing the telescopic layer to expand outward. This expansion will change the position of the moving rod in the moving groove, thereby affecting the relative position of the auxiliary channel and the first channel, and adjusting the ventilation volume accordingly to adapt to the change in internal temperature.

[0025] Furthermore, a sponge layer is bonded to the inner wall of the protective shell.

[0026] Beneficial effects: The sponge layer is soft and comfortable, which can reduce the friction and pressure between the protective shell and the patient's skin, and improve the comfort when wearing it. The sponge layer has good moisture absorption and breathability, and can absorb sweat and moisture on the patient's skin surface in time to keep it dry. This helps to reduce skin discomfort and infection risks caused by moisture, and keep the rehabilitation environment clean and hygienic. The sponge layer acts as a layer of cushioning material, which can reduce the impact of external shock and vibration on the knee joint to a certain extent. This can provide additional protection and reduce the risk of injury for patients wearing the fixation belt during exercise or activities.

[0027] Furthermore, the inner surface of the protective shell is ellipsoidal.

[0028] Beneficial effects: The ellipsoidal inner surface design is more in line with the natural shape of the human knee joint, can provide a tighter fit and better support effect, help reduce the loosening and slipping of the fixing belt during wearing, and improve the stability and comfort of wearing.

[0029] Furthermore, a detachable observation cover is provided on the surface of the protective shell.

[0030] Beneficial effects: The observation cover allows medical staff or patients' families to directly observe the status of the knee joint without removing the entire fixation belt. This is essential for monitoring rehabilitation progress, checking skin conditions, or promptly detecting abnormalities, which helps to adjust rehabilitation programs or take necessary medical measures in a timely manner. With a detachable design, the observation cover can be easily opened and closed when needed without destroying the overall structure of the fixation belt, which avoids damage or loosening problems caused by frequent removal and reinstallation of the fixation belt, and maintains the stability and durability of the fixation belt.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall axonometric view of an embodiment of the adjustable fixation belt for medical knee joint care of the present invention;

[0033] Figure 2 A front cross-sectional view of a protective shell of an embodiment of an adjustable fixation belt for medical knee joint care of the present invention;

[0034] Figure 3 It is an enlarged view of part A of an embodiment of the adjustable fixation belt for medical knee joint care of the present invention.

[0035] The figure marks in the drawings of the specification include: 1. calf fixture; 2. buffer layer; 3. adjustment angle plate; 4. thigh fixture; 5. protective shell; 6. telescopic layer; 7. expansion ball; 8. moving rod; 9. first channel; 10. spring; 11. auxiliary channel; 12. second channel; 13. observation cover. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The following is further described in detail through specific implementation methods:

[0040] Embodiment 1:

[0041] As attached Figure 1 , Figure 2 and Figure 3 As shown: an adjustable fixation belt for medical knee joint care, including a thigh fixture 4 and a calf fixture 1, both of which are provided with straps, the thigh fixture 4 and the calf fixture 1 are hinged and an adjustment angle plate 3 for adjusting the angles of the two is provided at the hinge. When fixing the patient's knee joint, the thigh fixture 4 and the calf fixture 1 are respectively fixed at the corresponding positions of the patient, namely the thigh and the calf, and by adjusting the angle plate 3, the doctor or nurse adjusts the angle between the thigh fixture 4 and the calf component according to the actual situation of the patient.

[0042] For patients with wounds on the knee joints, the exposed knee joints may get wet during daily activities, causing infection problems. Therefore, a waterproof component is bonded to the end of the thigh fastener 4 close to the calf fastener 1 to prevent the knee joint from getting wet. When the thigh fastener 4 and the calf fastener 1 are fixed, it is necessary to ensure that the patient's knee joint is aligned with the waterproof component to avoid friction between the waterproof component and the patient's knee joint when the patient moves subsequently, thereby squeezing the wound and causing discomfort to the patient.

[0043] The waterproof component includes a buffer layer 2, which can be preferably made of existing flexible and breathable materials. The two ends of the buffer layer 2 are respectively bonded to the two ends of the thigh fastener 4 and the calf fastener 1 that are close to each other, so as to ensure that the device as a whole can be adjusted in angle, and can also fit the shape of the patient's knee joint to improve the patient's comfort. A protective shell 5 is provided on the surface of the buffer layer 2, and the protective shell 5 can be preferably made of medical materials such as acrylonitrile-butadiene-styrene copolymer, which can reduce the overall weight of the fixing belt while ensuring that it can withstand a certain impact force without deformation, thereby better protecting the patient's knee joint and avoiding collision between the knee joint and hard objects or liquids such as water on the wound. At the same time, while protecting the patient's knee joint, it is also necessary to ensure air circulation inside the protective shell 5 to reduce symptoms such as inflammation of the wound at the patient's knee joint due to stuffiness, so that a number of breathable components for ensuring ventilation of the knee joint are evenly provided on the surface of the protective shell 5.

[0044] The ventilation components all include a first channel 9 and a second channel 12 opened in the protective shell 5. The diameter of the first channel 9 and the second channel 12 at the connection point is smaller than the diameter of the first channel 9 and the second channel 12, that is, a venturi tube structure is formed. The left end of the first channel 9 is connected to the outside of the protective shell 5, and the right end of the second channel 12 is connected to the inside of the protective shell 5 ( Figure 3 As shown). Through the connection between the first channel 9 and the second channel 12, the air inside the protective shell 5 is exchanged with the external air, ensuring the flowability of the gas inside the protective shell 5. While ventilating, it is also necessary to ensure that the external liquid is difficult to enter the inside of the protective shell 5, that is, when the first channel 9 and the second channel 12 are ventilated, it is difficult for the liquid to enter the inside of the protective shell 5 through the two channels, so the first channel 9 and the second channel 12 are both inclined, and the left end of the first channel 9 is located below the right end of the second channel 12 (as shown in FIG. Figure 3 As shown in FIG. 1 , by using the inclined channels, it is difficult for the liquid to enter the protective shell 5 through the first channel 9 and the second channel 12 under the action of gravity without external force.

[0045] Although the present device is provided with a first channel 9 and a second channel 12 to ensure the gas circulation inside the protective shell 5, when the temperature is high, the gas flow rate may be difficult to meet the normal heat dissipation of the knee joint inside the protective shell 5. Therefore, a movable groove is opened at the connection point between the first channel 9 and the second channel 12 (that is, located at the position where the diameter of the first channel 9 and the second channel 12 is narrower), and a movable rod 8 and a telescopic layer 6 are arranged in the movable groove. An expansion component for expanding the telescopic layer 6 is arranged inside the telescopic layer 6. The expansion component includes an expansion ball 7 filled with the telescopic layer 6, which increases its volume when heated. The top of the telescopic layer 6 is bonded to the top wall of the movable groove, and the bottom of the telescopic layer 6 is bonded to the top of the movable rod 8. The bottom end of the movable rod 8 is fixedly connected to a spring 10, and the other end of the spring 10 is fixedly connected to the bottom of the movable groove. The movable rod 8 is vertically slidably matched with the movable groove; the first channel 9 is connected to the second channel 12. The movable rod 8 is divided into three sections from top to bottom (such as Figure 3 As shown in the figure, the diameter of the middle section is smaller than the diameter of the other two ends to ensure that the first channel 9 and the second channel 12 are always connected during the movement of the moving rod 8, and the middle section of the moving rod 8 is defined as the ventilation area, and the other sections are defined as the air blocking area. When the ambient temperature is high, the expansion ball 7 in the telescopic layer 6 is heated and its volume expands. Due to the limited space inside the moving groove (such as Figure 3 As shown), the expansion ball 7 extends downward, causing the telescopic layer 6 to push the moving rod 8 downward, causing the ventilation area of ​​the moving rod 8 to move downward by a certain distance.

[0046] A plurality of auxiliary channels 11 are provided in the protective shell 5 below the second channel 12. One end of the auxiliary channels 11 is connected to the moving groove and the other end is connected to the inside of the protective shell 5. When the expansion ball 7 is not expanded, the auxiliary channels 11 are not connected to the first channel 9; when the expansion ball 7 is expanded, the auxiliary channels 11 are connected to the first channel 9. When the ventilation area of ​​the moving rod 8 moves downward, the auxiliary channels 11 are connected to the first channel 9, and the connection point is located at the connection point between the first channel 9 and the second channel 12 (i.e., the position with a narrower diameter), thereby increasing the gas flow channel, and because the first channel 9 and the second channel 12 form a Venturi tube structure (such as Figure 3 As shown), when the gas flows from the second channel 12 to the first channel 9, a negative pressure will be formed near the left end of the auxiliary channel 11, thereby further quickly discharging the higher temperature gas inside the protective shell 5 to the outside, and in order to further increase the efficiency of discharging the gas to the outside, the diameter of the right end of the auxiliary channel 11 is made larger than the other end. By changing the diameter of the auxiliary channel 11, the flow rate of the gas from the right end of the auxiliary channel 11 to the left end is accelerated, thereby further making the gas inside the protective shell 5 flow and improving the ventilation and heat dissipation efficiency.

[0047] Embodiment 2:

[0048] The difference from the above embodiment is that a sponge layer is bonded to the inner wall of the protective shell 5. The selection of the sponge layer should take into account its hygroscopicity and air permeability to keep the knee joint dry and comfortable; the inner surface of the protective shell 5 is ellipsoidal, and the mold of the protective shell 5 is redesigned to be ellipsoidal to ensure that the inner surface of the produced protective shell 5 matches the shape of the knee joint. This design not only improves the comfort of the fixing belt, but also helps to better disperse the pressure of the knee joint and reduce the discomfort when worn for a long time.

[0049] Embodiment 3:

[0050] The difference from the above embodiment is that, Figure 1 As shown, an observation cover 13 is threadedly connected to the surface of the protective shell 5, an opening matching the size of the observation cover 13 is opened at an appropriate position of the protective shell 5, and the observation cover 13 is installed. Ensure that the observation cover 13 can be easily opened and closed without damaging the protective shell 5 or affecting other functions of the fixation belt. During use, medical staff or patients can observe the condition of the knee joint by opening the observation cover 13, such as the healing of the wound, whether there is redness, swelling or exudate, etc. After the observation is completed, the observation cover 13 is closed and locked to ensure the integrity and sealing of the fixation belt. In addition, the observation cover 13 should be cleaned and disinfected regularly to maintain its transparency and hygiene.

[0051] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An adjustable fixation belt for medical knee joint care, comprising a thigh fastener (4) and a calf fastener (1), both of which are provided with straps, the thigh fastener (4) and the calf fastener (1) are hinged, and an adjustment angle plate (3) for adjusting the angles of the thigh fastener (4) and the calf fastener (1) is provided at the hinge, wherein: A waterproof component for preventing the knee joint from getting wet is bonded to one end of the thigh fastener (4) close to the calf fastener (1); The waterproof component comprises a buffer layer (2), the two ends of the buffer layer (2) are respectively bonded to the two ends of the thigh fastener (4) and the calf fastener (1) close to each other, a protective shell (5) is arranged on the surface of the buffer layer (2), and a plurality of breathable components for ensuring ventilation at the knee joint are evenly arranged on the surface of the protective shell (5).

2. The adjustable fixation belt for medical knee joint care according to claim 1, characterized in that: The ventilation components each comprise a first channel (9) and a second channel (12) opened in the protective shell (5); the diameter of the connection point between the first channel (9) and the second channel (12) is smaller than the diameter of the first channel (9) and the second channel (12); an end of the first channel (9) away from the second channel (12) is connected to the outside of the protective shell (5); and an end of the second channel (12) away from the first channel (9) is connected to the inside of the protective shell (5).

3. The adjustable fixation belt for medical knee joint care according to claim 2, characterized in that: The first channel (9) and the second channel (12) are both arranged obliquely, and an end of the first channel (9) close to the outer surface of the protective shell (5) is located below an end of the second channel (12) close to the inner surface of the protective shell (5).

4. The adjustable fixation belt for medical knee joint care according to claim 3, characterized in that: A movable groove is provided at the connecting point between the first channel (9) and the second channel (12), a movable rod (8) and a telescopic layer (6) are arranged in the movable groove, the top of the telescopic layer (6) is bonded to the top wall of the movable groove, the bottom of the telescopic layer (6) is bonded to the top of the movable rod (8), the bottom of the movable rod (8) is fixedly connected to a spring (10), the other end of the spring (10) is fixedly connected to the bottom of the movable groove, and the movable rod (8) is vertically slidably matched with the movable groove; the first channel (9) is connected to the second channel (12).

5. The adjustable fixation belt for medical knee joint care according to claim 4, characterized in that: A plurality of auxiliary channels (11) located below the second channel (12) are provided in the protective shell (5); one end of the auxiliary channels (11) is connected to the movable groove and the other end is connected to the inside of the protective shell (5); an expansion component for expanding the expansion layer (6) is provided inside the expansion layer (6); when the expansion component is not expanded, the auxiliary channels (11) are not connected to the first channel (9); when the expansion component is expanded, the auxiliary channels (11) are connected to the first channel (9).

6. The adjustable fixation belt for medical knee joint care according to claim 5, characterized in that: The diameter of one end of the auxiliary channel (11) close to the inner wall of the protective shell (5) is larger than that of the other end.

7. The adjustable fixation belt for medical knee joint care according to claim 6, characterized in that: The expansion component comprises a telescopic layer (6) filled with expansion balls (7) whose volume increases when heated.

8. The adjustable fixation belt for medical knee joint care according to claim 7, characterized in that: A sponge layer is bonded to the inner wall of the protective shell (5).

9. The adjustable fixation belt for medical knee joint care according to claim 8, characterized in that: The inner surface of the protective shell (5) is ellipsoidal.

10. The adjustable fixation belt for medical knee joint care according to claim 9, characterized in that: A detachable observation cover (13) is provided on the surface of the protective shell (5).

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