Lower limb fracture split type fixing brace convenient for examining foot compression condition

By designing a split-type fixation brace, which utilizes springs, connecting plates, and Velcro, the problem of pain caused by the need to remove the brace when examining foot pressure in existing technologies has been solved. This enables rapid examination and flexible fixation, reduces the risk of complications, and improves patient comfort and the versatility of the brace.

CN120938700APending Publication Date: 2025-11-14SHANDONG UNIV QILU HOSPITAL
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511210530.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing lower limb fracture fixation braces need to be removed when checking for pressure on the foot, which can worsen the patient's pain and make it difficult to detect potential pressure injuries to the skin in a timely manner.

Method used

A split-type fixation brace was designed, including a foot brace and a leg brace. It utilizes structures such as springs, connecting plates, clips, and Velcro to achieve quick installation and disassembly. Combined with a sponge pad and heel cavity, it reduces direct pressure on the foot and provides flexible fixation and inspection functions.

Benefits of technology

It enables rapid assessment of foot pressure without compromising fracture stability, reducing patient pain, lowering the risk of complications, and improving the versatility and comfort of the brace.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120938700A_ABST
    Figure CN120938700A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of medical apparatus and instruments, and discloses a lower limb fracture split type fixing brace convenient to examine the foot compression condition, the lower limb fracture split type fixing brace comprises a foot brace and a leg brace, the foot brace and the leg brace are respectively connected with a first mounting block and a second mounting block, the first mounting block is provided with a driving groove, the inner wall of the driving groove is connected with a guide rod, and the guide rod is connected with a second mounting block. The guide rod is slidably connected with a connecting piece, the connecting piece is slidably connected with the driving groove, the guide rod is sleeved with a spring, the two ends of the spring are connected with the inner wall of the driving groove and the connecting piece respectively, the connecting piece is connected with a clamping block, the clamping block is in a wedge block shape, the second mounting block is provided with an inserting groove, the inserting groove is matched with the connecting piece and the clamping block, and the second mounting block is provided with a clamping hole. The clamping hole is matched with the clamping block, the inner wall of the clamping hole is slidably connected with a push plate, the second mounting block is provided with a sliding groove, the push plate is connected with a sliding block, and the sliding block is slidably connected with the sliding groove. The foot brace can be independently removed, and secondary stimulation to a fracture part due to repeated overall disassembly of the brace is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a split-type fixation brace for lower limb fractures that facilitates the examination of pressure on the foot. Background Technology

[0002] Currently, after a patient suffers a lower limb fracture, immobilization and fixation are necessary to facilitate limb rehabilitation. Therefore, lower limb fixation braces are required for auxiliary restraint and fixation.

[0003] Because braces are prone to wrinkling or bending during manufacturing, uneven areas within the brace can exert pressure on the heel, inner and outer ankles. Doctors, nurses, and patients need to examine the foot for pressure to detect potential problems such as redness, blisters, and ulcers, allowing for appropriate care and prevention of complications like pressure injuries. However, current braces require removal or lifting of the foot for observation, which can worsen patient pain and hinder timely monitoring and resolution of pressure issues. Summary of the Invention

[0004] The present invention aims to provide a split-type fixation brace for lower limb fractures that facilitates the examination of foot pressure conditions, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A split-type fixation brace for lower limb fractures, facilitating the examination of foot pressure, includes a foot brace and a leg brace. The foot brace and leg brace are respectively connected to mounting block one and mounting block two. Mounting block one has a drive groove, and a guide rod is connected to the inner wall of the drive groove. A connecting piece is slidably connected to the guide rod, and the connecting piece is slidably connected to the drive groove. A spring is sleeved on the outer side of the guide rod, and both ends of the spring are connected to the inner wall of the drive groove and the connecting piece, respectively. A locking block, which is wedge-shaped, is connected to the connecting piece. Mounting block two has a slot that mates with the connecting piece and the locking block. Mounting block two also has a locking hole that mates with the locking block. A push plate is slidably connected to the inner wall of the locking hole, and the push plate mates with the locking block. Mounting block two has a sliding groove, and a slider is connected to the push plate, and the slider is slidably connected to the sliding groove.

[0006] Preferably, the foot brace is connected to a first restraint strap, the first restraint strap is connected to a first female hook and loop fastener, the foot brace is connected to a first female hook and loop fastener, the first female hook and loop fastener cooperates with the first female hook and loop fastener; the leg brace is connected to a second restraint strap, the second restraint strap is connected to a second female hook and loop fastener, the leg brace is connected to a second female hook and loop fastener, the second female hook and loop fastener cooperates with the second female hook and loop fastener.

[0007] Preferably, the length of the first female hook and loop fastener is greater than that of the first female hook and loop fastener, and the length of the second female hook and loop fastener is greater than that of the second female hook and loop fastener.

[0008] Preferably, the foot brace and leg brace are respectively connected to a sponge pad one and a sponge pad two.

[0009] Preferably, the foot brace has a heel cavity.

[0010] Preferably, both the foot brace and the leg brace are made of high-strength, lightweight materials.

[0011] The beneficial effects of this technical solution compared to existing technologies are as follows: (1) This technical solution, by setting springs, connecting plates, wedge-shaped blocks, and locking holes, allows the wedge-shaped blocks to automatically slide into the slots of the second mounting block when the foot brace and the second mounting block of the leg brace are aligned, and finally lock into the locking holes, achieving rapid locking. Medical staff or patients can complete the installation of the brace with one hand, reducing the difficulty of nursing care. If an emergency examination of the foot is required, the foot brace can be removed separately to fully expose the sole of the foot for skin observation, while the leg brace remains fixed to the thigh and lower leg, avoiding affecting the stability of the fracture site and avoiding secondary stimulation to the fracture site caused by repeated disassembly of the brace.

[0012] (2) By setting up restraint strap 1, sub-hook and hook and loop fastener 1, restraint strap 2, sub-hook and hook and loop fastener 2, a ring-shaped restraint force is formed. Combined with the rigid structure of the main body of the brace, the limb can be effectively fixed and the brace can be prevented from sliding when the patient turns over, sits up or moves passively. In an emergency, medical staff can quickly untie the restraint straps to deal with the danger in time and reduce the risk of complications.

[0013] (3) By setting the lengths of the first and second female hook and loop fasteners to be greater than those of the first and second female hook and loop fasteners, respectively, the tightness can be adjusted over a wide range by changing the position of the female hook and loop fastener on the first female hook and loop fastener when they are attached. This can cover a wider range of limb sizes and improve the versatility of the brace.

[0014] (4) By setting up sponge pad one and sponge pad two, the pressure can be dispersed through elastic deformation, and the direct pressure of the brace on the bone can be transformed into uniform contact surface support, which enhances the skin-like fit of the brace and reduces displacement and shaking during fixation.

[0015] (5) By setting up a heel cavity, the skin and bones of the heel are completely not in contact with the bottom surface of the brace, and the pressure is transferred to the arch of the foot and the proximal end of the lower leg, thereby reducing the risk of compression from the root.

[0016] (6) By setting foot braces and leg braces made of high-strength and lightweight materials, the weight of the braces can be reduced, making it easier for patients to lift their legs while lying in bed or get out of bed in the early stages. Attached Figure Description

[0017] Figure 1 This is a front sectional view of the present invention; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 This is a side view of the present invention; Figure 4 This is a side sectional view of the present invention; Reference numerals: 1. Foot brace; 2. Mounting block 1; 3. Mounting block 2; 4. Leg brace; 5. Sub-hook and loop fastener 2; 6. Restraint strap 2; 7. Sponge pad 2; 8. Sponge pad 1; 9. Heel cavity; 10. Spring; 11. Drive groove; 12. Guide rod; 13. Connecting piece; 14. Slide groove; 15. Slider; 16. Push plate; 17. Locking block; 18. Locking hole; 19. Slot; 20. Sub-hook and loop fastener 1; 21. Female hook and loop fastener 1; 22. Restraint strap 1; 23. Female hook and loop fastener 2. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1-4 The diagram shows a split-type fixation brace for lower limb fractures that facilitates the examination of foot pressure. It includes a foot brace 1 and a leg brace 4, both made of high-strength, lightweight materials. The inner walls of the foot brace 1 and leg brace 4 are respectively connected to a first sponge pad 8 and a second sponge pad 7. A heel cavity 9 is provided on the inner wall of the foot brace 1 near the heel.

[0019] like Figure 1-2As shown, mounting blocks 1 (2) and 3 (3) are connected to the left and right sides of the foot brace 1 and leg brace 4, respectively. Mounting block 1 (2) has a drive groove 11 on its top wall, and a guide rod 12 is connected to the inner wall of the drive groove 11. The guide rod 12 is horizontally positioned. A connecting piece 13 is slidably connected to the guide rod 12, and the connecting piece 13 is slidably connected to the drive groove 11. A spring 10 is sleeved on the outer side of the guide rod 12, and both ends of the spring 10 are connected to the inner wall of the drive groove 11 and the side wall of the connecting piece 13, respectively. In a balanced state, the spring 10 presses the connecting piece 13, causing the connecting piece 13 to contact the side of the drive groove 11 away from the foot brace 1. A locking block 17 is connected to the top side wall of the connecting piece 13. The locking block 17 is wedge-shaped, and a slot 19 is provided on the bottom wall of mounting block 2 (3), which engages with the connecting piece 13 and the locking block 17. Mounting block 2 3 has a locking hole 18 on the side away from the leg brace 4. The locking hole 18 communicates with the slot 19 and cooperates with the locking block 17. A push plate 16 is slidably connected to the inner wall of the locking hole 18. The push plate 16 cooperates with the locking block 17. Mounting block 2 3 has two sets of sliding grooves 14, which are located on the upper and lower inner walls of the locking hole 18, respectively. Slider blocks 15 are connected to the top and bottom walls of the push plate 16, and the sliders 15 are slidably connected to the sliding grooves 14. When mounting block 12 and mounting block 23 are aligned, the drive groove 11 is aligned with the slot 19. When the connecting piece 13 is inserted into the slot 19, the inner wall of the slot 19 presses the locking block 17 along the inclined surface of the locking block 17, causing the locking block 17 to push the connecting piece 13 towards the foot support 1 side, compressing the spring 10. Under the restriction of the guide rod 12, the connecting piece 13 will not tip over. When the connecting piece 13 is fully inserted into the slot 19, the locking block 17 is just aligned with the locking hole 18. The spring 10 rebounds, pushing the connecting piece 13 to slide along the guide rod 12, so that the locking block 17 is locked into the locking hole 18. Pushing the push plate 16 inward, when the slider 15 slides to the end of the slide groove 14, the push plate 16 just completely squeezes the locking block 17 out of the locking hole 18. At this time, the connecting piece 13 can be pulled out from the slot 19.

[0020] like Figure 3-4 As shown, a foot brace 1 has a binding strap 22 connected to one side, and a female Velcro 21 connected to the binding strap 22. A female Velcro 20 is connected to the other side of the foot brace 1, and the female Velcro 20 engages with the female Velcro 21. A leg brace 4 has several sets of binding straps 6 connected to one side, and a female Velcro 23 connected to the binding straps 6. A several sets of female Velcro 5 are connected to the other side of the leg brace 4, and the female Velcro 5 engages with the female Velcro 23. The female Velcro 21 is longer than the female Velcro 20, and the female Velcro 23 is longer than the female Velcro 25. The female Velcros can be attached to different positions on the female Velcros, and the tightness of the binding straps can be flexibly adjusted according to the thickness and swelling of the patient's limb.

[0021] The specific implementation process is as follows: In use, first, place the leg brace 4 on the patient's leg in a suitable position and adjust the angle. Then, align the mounting block 2 of the foot brace 1 with the mounting block 3 of the leg brace 4, allowing the locking block 17 to automatically slide into the slot 19 and engage with the locking hole 18, completing the connection between the foot brace 1 and the leg brace 4. Depending on the patient's limb thickness, stretch the restraint strap 22 of the foot brace 1 and attach the sub-Hook and loop fastener 20 to the appropriate position of the main hook and loop fastener 21, adjusting it to a comfortable and secure tightness. Similarly, operate on the several sets of restraint straps 6 of the leg brace 4, adjusting the tightness of each restraint strap individually through the cooperation of the sub-Hook and loop fastener 25 and the main hook and loop fastener 23, ensuring that the brace is stably fixed to the patient's lower limb and will not easily shift. If it is necessary to check the pressure on the foot, push the slider 15 so that the push plate 16 pushes out the locking block 17, separate the foot brace 1 from the leg brace 4, and conduct a comprehensive inspection of the foot separately, including the inner and outer ankle joints, heel, sole, toes and other parts. After the inspection is completed, reconnect and fix the foot brace 1 and the leg brace 4.

[0022] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A split-type fixation brace for lower limb fractures that facilitates the examination of foot pressure conditions, characterized in that: Includes a foot brace (1) and a leg brace (4). The foot brace (1) and the leg brace (4) are respectively connected to mounting block one (2) and mounting block two (3). Mounting block one (2) has a drive groove (11). A guide rod (12) is connected to the inner wall of the drive groove (11). A connecting piece (13) is slidably connected to the guide rod (12). The connecting piece (13) is slidably connected to the drive groove (11). A spring (10) is sleeved on the outer side of the guide rod (12). The two ends of the spring (10) are respectively connected to the inner wall of the drive groove (11) and the connecting piece (13). The mounting block 2 (3) is connected to a card block (17), which is wedge-shaped. The mounting block 2 (3) has a slot (19) which cooperates with the connecting piece (13) and the card block (17). The mounting block 2 (3) has a card hole (18) which cooperates with the card block (17). The inner wall of the card hole (18) is slidably connected to a push plate (16), which cooperates with the card block (17). The mounting block 2 (3) has a sliding groove (14), and the push plate (16) is connected to a slider (15). The slider (15) is slidably connected to the sliding groove (14).

2. The split-type fixation brace for lower limb fractures as described in claim 1, which facilitates the examination of foot pressure, is characterized in that: The foot brace (1) is connected to a first binding strap (22), the first binding strap (22) is connected to a first female hook and loop fastener (21), the foot brace (1) is connected to a first female hook and loop fastener (20), the first female hook and loop fastener (20) cooperates with the first female hook and loop fastener (21), the leg brace (4) is connected to a second binding strap (6), the second binding strap (6) is connected to a second female hook and loop fastener (23), the leg brace (4) is connected to a second female hook and loop fastener (5), the second female hook and loop fastener (5) cooperates with the second female hook and loop fastener (23).

3. A split-type fixation brace for lower limb fractures as described in claim 2, facilitating the examination of foot pressure conditions, characterized in that: The length of the first female hook and loop fastener (21) is greater than that of the first female hook and loop fastener (20), and the length of the second female hook and loop fastener (23) is greater than that of the second female hook and loop fastener (5).

4. A split-type fixation brace for lower limb fractures as described in claim 1, facilitating the examination of foot pressure conditions, characterized in that: The foot brace (1) and leg brace (4) are respectively connected to a sponge pad one (8) and a sponge pad two (7).

5. A split-type fixation brace for lower limb fractures as described in claim 1, facilitating the examination of foot pressure conditions, characterized in that: The foot brace (1) has a heel cavity (9).

6. A split-type fixation brace for lower limb fractures as described in claim 1, facilitating the examination of foot pressure conditions, characterized in that: The foot brace (1) and leg brace (4) are both made of high-strength, lightweight materials.