Adjustable pneumatic lower extremity trauma first aid brace

Abstract

The utility model relates to an adjustable lower limb trauma first-aid brace with air bags, which comprises a shell assembly made of hard plastic and an air bag assembly. The shell assembly comprises a hip shell, a thigh shell, a calf shell and a connecting assembly. The thigh shell is in the shape of a U-shaped cylinder, with one end connected to the hip shell and the other end connected to the calf shell through the connecting assembly. The connecting assembly comprises two curved plates and locking screws. The curved plates are symmetrically inserted into the thigh shell and the calf shell. The locking screws are screwed into the thigh shell / calf shell and abut against the end of the curved plates. The air bag assembly comprises a plurality of strip-shaped air bags that are connected to each other. The strip-shaped air bags are attached to the hip shell, the thigh shell and the calf shell, respectively. The utility model is suitable for cases where the hip or the thigh is injured. The curved plates and the locking screws are matched to adapt to the leg length of the patient. The curved angle of the curved plates allows the thigh shell and the calf shell to form a comfortable angle for the patient, thereby reducing the pain of the patient and making the utility model suitable for first-aid.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to an adjustable lower limb trauma emergency brace with an airbag. Background Technology

[0002] Lower limb trauma first aid braces are medical devices used during emergency treatment to temporarily immobilize the injured area of ​​a patient's lower limb, restrict movement of the injured area, and prevent the injury from worsening. Generally, after a lower limb injury, it is best to keep the patient in their original position until emergency personnel arrive to avoid secondary injury. Once emergency personnel arrive, they will use a lower limb trauma first aid brace to temporarily immobilize the patient based on the symptoms of the lower limb injury. Afterwards, emergency personnel will use a stretcher to lift the patient to an ambulance and transport them to the hospital. The lower limb is divided into the hip, thigh, knee, calf, ankle, and foot from top to bottom. The hip includes the hip joint; the knee includes the knee joint; and the ankle includes the ankle joint. The hip joint allows the thigh to move relative to the waist; the knee joint allows the calf to move relative to the thigh; and the ankle joint allows the foot to move relative to the calf. Lower limb trauma first aid braces need to restrict the hip, knee, and ankle joints to ensure that the injured area is protected from secondary injury. However, existing lower limb trauma emergency braces, such as the utility model patent for a simple lower limb brace with an airbag (CN219700247U), mostly have a one-piece shell and restrict the thigh, knee, calf, ankle, and foot. This has the following drawbacks: 1. It lacks restriction on the hip joint, making it unsuitable for injuries to the hip or thigh; 2. It is difficult to meet the needs of patients with different leg lengths and is unsuitable for emergency applications; the shell of this simple brace is of fixed length and is only suitable for patients with the corresponding leg length. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide an adjustable lower limb trauma emergency brace with an airbag.

[0004] The technical solution of this utility model is as follows: An adjustable lower limb trauma emergency brace with an airbag includes a hard plastic shell assembly and an airbag assembly; the shell assembly provides stable hard support for the lower limb; the airbag assembly provides moderate soft support for the lower limb; the shell assembly includes a hip shell, a thigh shell, a calf shell, and a connecting assembly; the hip shell provides hard support for the hip of the lower limb; the thigh shell provides hard support for the thigh of the lower limb; the calf shell provides hard support for the calf and foot of the lower limb; the connecting assembly connects the thigh shell and the calf shell, corresponding to the knee; the hip shell is generally cut in the shape of a pair of shorts along the left and right direction, with a bandage guard at the waist; the hip shell and the bandage guard on the hip shell fully restrain the hip of the lower limb, suitable for situations where there is trauma to the hip or thigh; the thigh shell is generally U-shaped, which can wrap around the thigh to form hard support; one end of the thigh shell is connected to the hip shell to form a whole; the other end of the thigh shell is connected to the calf shell through the connecting assembly; both thigh shells are The device includes several bandages (B) to restrain the patient's thigh; the connecting assembly includes two bending plates and locking screws; the thigh shell has symmetrical adjustment holes (A) on both sides that match the ends of the bending plates; the calf shell has adjustment holes (B) that match the ends of the bending plates; the bending plates are boomerang-shaped, with both ends inserted into adjustment holes (A) and (B) respectively; the locking screws, after being threaded into the thigh / calf shells, abut against the ends of the bending plates; the bending angle of the bending plates is related to the most comfortable knee flexion angle for the human body, so that the thigh and calf shells form a comfortable angle for the patient, reducing patient pain; the length of the bending plates extending into adjustment holes (A) and (B) can be adjusted on-site to accommodate patients with different leg lengths; after adjustment, the position of the bending plates is locked using the locking screws; the calf shell is evenly distributed with several bandages (C); the airbag assembly includes several interconnected strip-shaped airbags; these strip-shaped airbags are respectively attached to the hip shell, thigh shell, and calf shell to provide soft support for the hip shell, thigh shell, and calf shell.

[0005] Preferably, the hip shell has a fastening groove at the leg opening; a fastening post is provided in the fastening groove; a fastening ring is provided at the end of the thigh shell to fasten with the fastening post; the fastening ring and the fastening post form a detachable connection; thus, both leg openings of the hip shell have fastening grooves and fastening posts; the thigh shell and the calf shell are one unit; depending on whether the patient's affected area is on the left or right leg, the thigh shell and the calf shell are arranged according to the corresponding leg opening position of the hip shell.

[0006] Furthermore, a retaining plate extends outward from the side of the snap-fit ​​post facing the bottom of the snap-fit ​​groove; the retaining plate abuts against the end face of the snap-fit ​​ring to prevent the snap-fit ​​ring from coming out; when the snap-fit ​​post and the snap-fit ​​ring are snapped together, the snap-fit ​​ring can be inserted into the bottom of the snap-fit ​​groove and fall into the snap-fit ​​groove, and then the snap-fit ​​ring can be pulled outward so that the retaining plate limits the snap-fit ​​ring.

[0007] Preferably, the locking screw is a dovetail screw to facilitate locking the end of the bent plate.

[0008] Preferably, the connecting assembly further includes a bending plate; the center of the closed end of the thigh shell is provided with a guide hole A that matches the end of the bending plate; the lower leg shell is provided with a guide hole B that matches the end of the bending plate; the two ends of the bending plate are respectively inserted into guide hole A and guide hole B; the bending plate cooperates with guide hole A / / guide hole B to provide guidance for the sliding of the bending plate relative to guide hole A and guide hole B, ensuring that the bending degree of the bending plate is related to the curvature of the bending plate.

[0009] Preferably, the hip shell, thigh shell, and calf shell are densely covered with ventilation holes to keep the patient's lower limbs dry and breathable, preventing sweating and wound infection.

[0010] Preferably, the outer shell assembly also includes a foot shell integrated with the lower leg shell; the foot shell provides rigid support for the foot; and the strip-shaped airbag is attached to the inner wall of the foot shell to provide soft support for the foot, and can also adapt to the size of the foot by inflating the strip-shaped airbag attached to the foot shell.

[0011] Furthermore, the foot shell is provided with bandage studs; the middle of the bandage studs is fixed to the foot shell at the position corresponding to the foot plate; the two ends of the bandage studs are connected after wrapping around the foot shell to restrain the foot.

[0012] Furthermore, bandages A, B, and D are all secured with Velcro for easy on-site application.

[0013] Preferably, the hip shell has symmetrical bandage ring armor and connecting cloth armor at the waist position; the bandage ring armor is connected to the hip shell through the connecting cloth armor; the connection method between the connecting cloth armor and the hip shell can be adhesive or fixed; one end of the bandage armor is connected to the bandage ring armor on one side, and the other end is threaded around the bandage ring armor on the other side and then connected with Velcro.

[0014] The thigh shell is symmetrically provided with bandage ring B and connecting cloth B; bandage ring B is connected to the thigh shell through connecting cloth B, and the connection method is the same as that of connecting cloth A; one end of bandage B is connected to bandage ring B on one side, and the other end is threaded around bandage ring B on the other side and then connected with Velcro.

[0015] The lower leg shell is symmetrically provided with bandage ring C and connecting cloth C; the bandage ring C is connected to the lower leg shell through the connecting cloth C, and the connection method is the same as that of the connecting cloth armor; one end of the bandage C is connected to the bandage ring C on one side, and the other end is threaded around the bandage ring C on the other side and then connected with Velcro.

[0016] The hip shell has several threading holes A on both sides; the sewing thread passes through the threading holes A to fix and connect the fabric A; the thigh shell has several threading holes B on both sides; the sewing thread passes through the threading holes B to fix and connect the fabric B; the lower leg shell has several threading holes C on both sides; the sewing thread passes through the threading holes C to fix and connect the fabric C.

[0017] Preferably, the adjustable airbag-equipped lower limb trauma emergency brace also includes a pad; the pad is attached to the outer surface of the strip airbag; the pad can reduce wear on the strip airbag and improve the service life of the emergency brace.

[0018] The beneficial effects of this utility model are as follows: The adjustable lower limb trauma emergency brace with airbag of this utility model has the following advantages:

[0019] (1) This utility model provides sufficient restraint for the hip, thigh, and calf to be suitable for situations where there is trauma to the hip or thigh; this utility model adapts to the patient's leg length by using a combination of a bending plate and a locking screw. The bending angle of the bending plate is related to the most comfortable knee flexion angle of the human body, so that the outer shell of the thigh and the outer shell of the calf form an angle that is comfortable for the patient, reducing the patient's pain and making it suitable for emergency treatment.

[0020] (2) The ventilation holes of this utility model are used to dry and ventilate the patient's lower limbs, prevent the lower limbs from sweating and causing wound infection. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the adjustable lower limb trauma emergency brace with airbag according to this utility model;

[0022] Figure 2 yes Figure 1 A partial sectional view of the front view;

[0023] Figure 3 yes Figure 2 A magnified view of the I-shaped image;

[0024] Figure 4 yes Figure 2 II magnified view;

[0025] Figure 5 yes Figure 1 Top view;

[0026] Figure 6 yes Figure 5 AA section view;

[0027] Figure 7 yes Figure 5 BB cross-sectional view;

[0028] Figure 8 yes Figure 7 III magnified view;

[0029] Figure 9 This is a 3D view of the airbag assembly;

[0030] Figure 10 It is a 3D view of the outer casing components;

[0031] Figure 11yes Figure 10 IV magnified view;

[0032] In the diagram: 11. Hip shell, 111. Bandage A, 112. Fastening groove, 113. Fastening post, 1131. Clamping plate, 114. Bandage ring A, 115. Connecting fabric A, 116. Threading hole A, 12. Thigh shell, 121. Fastening ring, 122. Bandage B, 123. Adjustment hole A, 124. Guide hole A, 125. Bandage ring B, 126. Connecting fabric B, 127. Threading hole B, 13. Lower leg shell, 131. Bandage C, 132. Adjustment hole B, 133. Guide hole A 134. Hole B; 135. Threading Hole C; 136. Bandage Ring C; 147. Connecting Fabric C; 148. Bending Plate; 149. Locking Screw; 140. Bending Plate; 15. Vent Hole; 16. Foot Shell; 161. Bandage D; 21. Strip Airbag; 212. Hip Airbag; 213. Thigh Airbag; 214. Calf Airbag; 215. Foot Airbag; 22. Air Inlet Pipe; 23. Deflator Valve; 31. Hip Pad; 32. Thigh Pad; 33. Calf Pad; 34. Foot Pad. Detailed Implementation

[0033] Example 1: See Figure 1-11An adjustable lower limb trauma emergency brace with an airbag includes a hard plastic shell assembly and an airbag assembly. The shell assembly provides stable rigid support for the lower limb; the airbag assembly provides moderate soft support for the lower limb. The shell assembly includes a hip shell 11, a thigh shell 12, a lower leg shell 13, and a connecting assembly. The hip shell 11 provides rigid support for the hip of the lower limb; the thigh shell 12 provides rigid support for the thigh of the lower limb; the lower leg shell 13 provides rigid support for the lower leg and foot of the lower limb; the connecting assembly connects the thigh shell 12 and the lower leg shell 13, corresponding to the knee; the hip shell 11... The body is shaped like a pair of shorts cut along the left and right sides, with a bandage 111 at the waist. The hip shell 11 and the bandage 111 on the hip shell 11 provide sufficient restraint to the hip of the lower limb, suitable for situations where there is trauma to the hip or thigh. The thigh shell 12 is a U-shaped tube that can wrap around the thigh and form rigid support. One end of the thigh shell 12 is connected to the hip shell 11 to form a whole. The other end of the thigh shell 12 is connected to the lower leg shell 13 through a connecting assembly. Several bandages 122 are evenly distributed on the thigh shell 12 to restrain the patient's thigh. The connecting assembly includes two... A bending plate 141 and a locking screw 142 are provided; the thigh shell 12 is symmetrically provided with adjustment holes A 123 on both sides, corresponding to the ends of the bending plate 141; the calf shell 13 is provided with adjustment holes B 132 corresponding to the ends of the bending plate 141; the bending plate 141 is generally boomerang-shaped, with adjustment holes A 123 and B 132 inserted into both ends respectively; after the locking screw 142 is threaded into the thigh shell 12 / calf shell 13, it abuts against the ends of the bending plate 141; the bending angle of the bending plate 141 is related to the most comfortable knee flexion angle of the human body, so that the thigh shell 12 and the calf shell 13 are aligned. The shell 13 is designed to provide a comfortable angle for the patient and reduce their pain. The length of the bending plate 141 extending into the adjustment hole A 123 and adjustment hole B 132 can be adjusted on-site to accommodate patients with different leg lengths. After adjustment, the position of the bending plate 141 is locked using the locking screw 142. Several bandages C 131 are evenly distributed on the lower leg shell 13. The airbag assembly includes several interconnected strip airbags 21. These strip airbags 21 are respectively attached to the hip shell 11, thigh shell 12, and lower leg shell 13 to provide soft support for the hip shell 11, thigh shell 12, and lower leg shell 13.

[0034] Compared with the prior art, this utility model provides sufficient restraint for the hip, thigh, and calf, making it suitable for situations where there is trauma to the hip or thigh. This utility model uses the cooperation of the bending plate 141 and the locking screw 142 to adapt to the patient's leg length. The bending angle of the bending plate 141 is related to the most comfortable knee flexion angle of the human body, so that the thigh shell 12 and the calf shell 13 form an angle that is comfortable for the patient, reducing the patient's pain and making it suitable for emergency treatment.

[0035] The hip shell 11 has a fastening groove 112 at the leg opening; a fastening post 113 is provided in the fastening groove 112; the end of the thigh shell 12 has a fastening ring 121 that engages with the fastening post 113; the fastening ring 121 and the fastening post 113 form a detachable connection; thus, both leg openings of the hip shell 11 have fastening grooves 112 and fastening posts 113; the thigh shell 12 and the calf shell 13 are one unit; depending on whether the patient's affected area is on the left or right leg, the thigh shell 12 and the calf shell 13 are arranged according to the corresponding leg opening position of the hip shell 11.

[0036] The snap-fit ​​post 113 extends outward from the side facing the bottom of the snap-fit ​​groove 112 with a retaining plate 1131; the retaining plate 1131 abuts against the end face of the snap-fit ​​ring 121 to prevent the snap-fit ​​ring 121 from coming out; when the snap-fit ​​post 113 and the snap-fit ​​ring 121 are snapped together, the snap-fit ​​ring 121 can be inserted into the bottom of the snap-fit ​​groove 112 and fall into the snap-fit ​​groove 112, and then the snap-fit ​​ring 121 can be pulled outward so that the retaining plate 1131 limits the snap-fit ​​ring 121.

[0037] The locking screw 142 is a dovetail screw to facilitate locking the end of the bent plate 141.

[0038] The connecting assembly also includes a bending plate 143; the center of the closed end of the thigh shell 12 is provided with a guide hole A 124 that matches the end of the bending plate 143; the lower leg shell 13 is provided with a guide hole B 133 that matches the end of the bending plate 143; the two ends of the bending plate 143 are respectively inserted into the guide hole A 124 and the guide hole B 133; the bending plate 143 cooperates with the guide hole A 124 and the guide hole B 133 to provide guidance for the sliding of the bending plate 141 relative to the guide hole A 124 and the guide hole B 133, ensuring that the bending degree of the bending plate 143 is related to the bending degree of the bending plate.

[0039] The hip shell 11, thigh shell 12, and calf shell 13 are densely covered with ventilation holes 15, which are used to keep the patient's lower limbs dry and breathable, and prevent the lower limbs from sweating and causing wound infection.

[0040] The outer shell assembly also includes a foot shell 16 integrated with the calf shell 13; the foot shell 16 provides rigid support for the foot; the strip-shaped airbag 21 is attached to the inner wall of the foot shell 16 to provide soft support for the foot, and can also adapt to the size of the foot by the inflation amount of the strip-shaped airbag attached to the foot shell 16.

[0041] The foot shell 16 is provided with a bandage 161; the middle part of the bandage 161 is fixed to the foot shell 16 corresponding to the foot plate position; the two ends of the bandage 161 are connected after wrapping around the foot shell 16 to restrain the foot.

[0042] Bandage A 111, Bandage B 122, and Bandage D 161 are all secured with Velcro for easy on-site application.

[0043] The hip shell 11 is symmetrically provided with bandage ring armor 114 and connecting cloth armor 115 at the waist position; the bandage ring armor 114 is connected to the hip shell 11 through the connecting cloth armor 115; the connection method between the connecting cloth armor 115 and the hip shell 11 can be adhesive or fixed; one end of the bandage armor 111 is connected to the bandage ring armor 114 on one side, and the other end is threaded through the bandage ring armor 114 on the other side and then connected with Velcro;

[0044] The thigh shell 12 is symmetrically provided with bandage ring B 125 and connecting cloth B 126; the bandage ring B 125 is connected to the thigh shell 12 through the connecting cloth B 126, and the connection method is the same as that of the connecting cloth A 115; one end of the bandage B 122 is connected to the bandage ring B 125 on one side, and the other end is threaded around the bandage ring B 125 on the other side and then connected with Velcro;

[0045] The lower leg shell 13 is symmetrically provided with bandage ring C135 and connecting cloth C136; the bandage ring C135 is connected to the lower leg shell 13 through the connecting cloth C136, and the connection method is the same as that of the connecting cloth armor 115; one end of the bandage C131 is connected to the bandage ring C135 on one side, and the other end is threaded around the bandage ring C135 on the other side and then connected with Velcro.

[0046] The adjustable airbag-equipped lower limb trauma emergency brace also includes a pad; the pad is attached to the outer surface of the strip airbag 21; the pad can reduce wear on the strip airbag 21 and improve the service life of the emergency brace.

[0047] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that: the hip shell 11 has several thread holes A 116 on both sides; the sewing thread passes through the thread holes A 116 and is fixedly connected to the fabric A 115; the thigh shell 12 has several thread holes B 127 on both sides; the sewing thread passes through the thread holes B 127 and is fixedly connected to the fabric B 126; the lower leg shell 13 has several thread holes C 134 on both sides; the sewing thread passes through the thread holes C 134 and is fixedly connected to the fabric C 136.

[0048] The airbag assembly also includes an air inlet pipe 22 with a valve core and a deflation valve 23; the air inlet pipe 22 is used to input gas into the strip-shaped airbag 21; the deflation valve 23 is used to deflate the strip-shaped airbag 21; the strip-shaped airbag 21 is divided into a hip airbag 211, a thigh airbag 212, a calf airbag 213 and a foot airbag 214 according to the arrangement area; the hip airbag 211, the thigh airbag 212 and the calf airbag 213 are each equipped with an air inlet pipe 22 and a deflation valve 23, which are corresponding to the different parts of the lower limbs of the human body for corresponding inflation, so that each airbag can expand differently to adapt to the patient's physical condition.

[0049] The padding includes a hip padding 31, a thigh padding 32, a calf padding 33, and a foot padding 34; the hip padding 31, thigh padding 32, calf padding 33, and foot padding 34 are respectively attached to the corresponding strip-shaped airbags 21; the calf padding 33 and the foot padding 34 are integrally formed.

[0050] In this embodiment, the hip shell 11, bandage ring 114, thigh shell 12, bandage ring B 125, calf shell 13, bandage ring C 135, bending plate 141, bending plate 143, and locking screw 142 are all made of plastic; thus, patients wearing the emergency brace can directly undergo color Doppler ultrasound examination.

Claims

1. An adjustable lower limb trauma emergency brace with an airbag, characterized in that, The device includes a hard plastic outer shell assembly and an airbag assembly. The outer shell assembly includes a hip shell, a thigh shell, a calf shell, and a connecting assembly. The hip shell is shaped like a pair of shorts cut along the left and right sides, with a bandage A at the waist. The thigh shell is a U-shaped tube, with one end connected to the hip shell and the other end connected to the calf shell via the connecting assembly. Several bandages B are evenly distributed on the thigh shell. The connecting assembly includes two bending plates and a locking screw. The thigh shell has symmetrical adjustment holes A on both sides that match the ends of the bending plates. The calf shell has adjustment holes B that match the ends of the bending plates. The bending plates are boomerang-shaped, with the two ends inserted into adjustment holes A and B, respectively. The locking screw, after being threaded into the thigh / calf shell, abuts against the ends of the bending plates. Several bandages C are evenly distributed on the calf shell. The airbag assembly includes several interconnected strip-shaped airbags, which are respectively attached to the hip shell, thigh shell, and calf shell.

2. The adjustable lower limb trauma emergency brace with airbag according to claim 1, characterized in that: The hip shell has a fastening groove at the leg opening; a fastening post is provided in the fastening groove; and a fastening ring is provided at the end of the thigh shell to engage with the fastening post.

3. The adjustable lower limb trauma emergency brace with airbag according to claim 2, characterized in that: The snap-fit ​​post extends outward from the side facing the bottom of the snap-fit ​​groove, with the retaining plate abutting against the end face of the snap-fit ​​ring.

4. The adjustable lower limb trauma emergency brace with airbag according to claim 1, characterized in that: The locking screw is a dovetail screw.

5. The adjustable lower limb trauma emergency brace with airbag according to claim 1, characterized in that: The connecting assembly also includes a bending plate; the center of the closed end of the thigh shell is provided with a guide hole A that matches the end of the bending plate; the lower leg shell is provided with a guide hole B that matches the end of the bending plate; the two ends of the bending plate are respectively inserted into guide hole A and guide hole B.

6. The adjustable lower limb trauma emergency brace with airbag according to claim 1, characterized in that: The hip shell, thigh shell, and calf shell are covered with ventilation holes.

7. The adjustable lower limb trauma emergency brace with airbag according to claim 1, characterized in that: The outer shell assembly also includes a foot shell integrated with the lower leg shell; strip-shaped airbags are attached to the inner wall of the foot shell.

8. The adjustable lower limb trauma emergency brace with airbag according to claim 7, characterized in that: The foot shell is equipped with bandage studs; the middle of the bandage studs is fixed to the foot shell at the position corresponding to the foot plate; the two ends of the bandage studs are connected after wrapping around the foot shell.

9. The adjustable lower limb trauma emergency brace with airbag according to claim 1, characterized in that: The hip shell is symmetrically equipped with bandage ring armor and connecting cloth armor at the waist position; the bandage ring armor is connected to the hip shell through the connecting cloth armor; one end of the bandage armor is connected to the bandage ring armor on one side, and the other end is threaded through the bandage ring armor on the other side and then connected with Velcro. The thigh shell is symmetrically provided with bandage ring B and connecting cloth B; bandage ring B is connected to the thigh shell through connecting cloth B; one end of bandage B is connected to bandage ring B on one side, and the other end is threaded around bandage ring B on the other side and then connected with Velcro. The lower leg shell is symmetrically provided with bandage rings C and connecting cloth C; the bandage rings C are connected to the lower leg shell through the connecting cloth C; one end of the bandage C is connected to the bandage ring C on one side, and the other end is threaded around the bandage ring C on the other side and then connected with Velcro.

10. The adjustable lower limb trauma emergency brace with airbag according to claim 1, characterized in that: It also includes a liner; the liner is attached to the outer surface of the strip airbag.

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