Fracture fixing device for orthopedic treatment

Abstract

The invention relates to the technical field of medical instruments, in particular to a fracture fixing device for orthopedic treatment. Comprising a mold, the mold is connected with a first binding band and a second binding band, the first binding band and the second binding band are used for limiting the feet of a patient, and inserting buckles are arranged between the first binding band and the mold and between the second binding band and the mold. An arc-shaped air bag and a ventilation system are arranged in the device, alternate fixation and relaxation of an affected limb can be achieved through periodic inflation and deflation, blood circulation disorder caused by long-time continuous compression is avoided, meanwhile, a built-in air outlet frame is matched with an air conveying mechanism, fresh air can be introduced at regular intervals, the ventilation performance in the device is enhanced, and the device is convenient to use. The device is provided with an adjustable supporting seat and a sliding plate structure, the device is fixed to the thigh through a third bandage, the patient can walk by using the structure as a fulcrum in the later period of rehabilitation without depending on a walking stick or a wheelchair, and the independent activity capacity and the living quality of the patient are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a fracture fixation device for orthopedic treatment. Background Art

[0002] In the field of orthopedics, the treatment of fractures is one of the common and critical tasks. Fracture refers to the destruction of the integrity and continuity of bones, usually caused by trauma, osteoporosis or pathological factors. In order to restore the normal anatomical structure and function of the bones, the fracture site needs to be effectively fixed and stabilized to promote bone healing. Therefore, fracture fixation devices, as an important tool in orthopedic treatment, have been widely used in clinical practice.

[0003] At present, traditional fracture fixation devices are usually made of materials such as hard plastic, plaster or rubber. Although these materials have good support and fixation effects, their breathability is poor. When patients wear such devices for a long time, the skin cannot breathe normally, which can easily lead to local moisture, and then cause itching, skin allergies and even pressure sores. These problems not only reduce the patient's comfort, but may also affect the recovery process of the fracture. In addition, traditional fracture fixation devices are often designed without consideration for the patient's mobility. After wearing such devices, patients usually need to use auxiliary tools such as crutches or wheelchairs to move, which not only increases the patient's physical burden, but also limits their independent movement ability. Especially in the later stages of rehabilitation, when the patient already has a certain walking ability, this inconvenience is more obvious. Summary of the Invention

[0004] In view of this, the present invention provides a fracture fixation device for orthopedic treatment, which can solve the problem that when patients wear traditional fracture fixation devices for a long time, it is not only easy to cause local moisture, which in turn causes itching, skin allergies and even pressure sores, but also requires the use of auxiliary tools such as crutches or wheelchairs to move, which increases the physical burden of patients and limits their ability to move independently.

[0005] The technical solution is as follows: A fracture fixation device for orthopedic treatment includes a mold, a first strap and a second strap are connected to the mold, the first strap and the second strap are both used to limit the patient's feet, a buckle is provided between the first strap and the second strap and the mold, an arc-shaped air bag is provided between the first strap and the inner side of the mold, a ventilation hole is opened on the mold, an air outlet frame is connected to the side of the mold, a separator is provided in the mold, the separator is connected to the air outlet frame, and the separator is used to divide the ventilation hole into two parts, one part of which is connected to the air outlet frame. The mold is provided with an air supply mechanism and a control mechanism. The control mechanism is used to control the air supply mechanism to input gas into the arc-shaped airbag and the air outlet frame, so that the arc-shaped airbag fixes the patient's feet by expansion, and the air outlet frame blows air to the patient's feet. Cloth strips are symmetrically arranged on the mold, and guide rails are connected to the cloth strips. A support seat and a slide are slidingly arranged on the guide rails. The support seat and the slide are provided with an elastic mechanism. The elastic mechanism is used to limit the support seat and the slide. The slide is provided with a fixing mechanism. The fixing mechanism is used to fix the slide on the patient's thigh.

[0006] Optionally, the air supply mechanism includes an air pump, a three-way valve, a first air pipe and a second air pipe. The air pump is installed on the side of the mold, and the three-way valve is also installed at intervals on the side of the mold. The air pump is connected to the three-way valve through the first air pipe, and the three-way valve is connected to the arc airbag through the second air pipe.

[0007] Optionally, the gas transmission mechanism further includes a third gas pipe and an electrically controlled valve. The first gas pipe is connected to the third gas pipe, the third gas pipe is connected to the air outlet frame, and the third gas pipe is provided with an electrically controlled valve.

[0008] Optionally, the control mechanism includes a power supply and control module and a patch pressure sensor. The power supply and control module is installed on the side of the mold, and the patch pressure sensor is installed on the arc-shaped airbag. The patch pressure sensor is in contact with the inner wall of the mold.

[0009] Optionally, the tensioning mechanism includes a first tensioning screw and a second tensioning screw, the first tensioning screw is threadedly mounted on the support seat, and the second tensioning screw is threadedly mounted on the slide.

[0010] Optionally, the fixing mechanism includes a third strap and a Velcro, the third strap is installed on the skateboard, and the end of the third strap is provided with a Velcro.

[0011] Optionally, an anti-skid pad is also included. The bottom of the support seat is connected to the anti-skid pad, which is used to stabilize the support seat.

[0012] Optionally, a heater is further included. The mold side is equipped with a heater, and the third air pipe passes through the heater. The heater is used to heat the air in the third air pipe.

[0013] The beneficial effects of the present invention are: 1. The present invention provides an arc-shaped airbag and a ventilation system inside the device, which can achieve alternating fixation and relaxation of the affected limb through periodic inflation and deflation, thereby avoiding blood circulation disorders caused by long-term continuous compression. At the same time, the built-in air outlet frame cooperates with the air supply mechanism to regularly introduce fresh air to enhance the ventilation inside the device. The device is also equipped with an adjustable support seat and a slide plate structure, and the device is fixed to the thigh by a third strap. In the later stage of rehabilitation, the patient can use the structure as a fulcrum to walk without relying on crutches or wheelchairs, which greatly improves the patient's independent activity ability and quality of life.

[0014] 2. The present invention realizes automatic control of the expansion degree of the airbag by linking the patch-type pressure sensor set on the arc-shaped airbag with the power supply and control module. When the pressure reaches the set value, inflation is automatically stopped to prevent tissue damage caused by excessive squeezing, thereby improving the safety and intelligence level of the device.

[0015] 3. When the present invention is used in a cold environment, the air sent into the device can be heated by a heater to prevent cold wind from irritating the affected area, further improving the patient's comfort when wearing it. It is particularly suitable for use in the early postoperative period or in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the mold, the first strap and the second strap of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the first strap, the second strap and the buckle of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the air pump, three-way valve and first air pipe of the present invention.

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the invented arc-shaped airbag, second air tube and patch-type pressure sensor.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the air outlet frame, the third air pipe and the electronically controlled valve of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the arc-shaped airbag, air outlet frame and partition block of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the tensioning mechanism of the present invention.

[0024] Figure 9 This is a structural separation diagram of the guide rail, support seat and slide plate of the present invention.

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention.

[0026] Figure 11 It is a schematic diagram of the three-dimensional structure of the air outlet frame, the third air pipe and the heater of the present invention.

[0027] Markings in the accompanying drawings: 1: mold, 2: first strap, 3: second strap, 4: buckle, 5: arc-shaped airbag, 6: air outlet frame, 7: partition block, 801: air pump, 802: three-way valve, 803: first air pipe, 804: second air pipe, 805: third air pipe, 806: electric control valve, 901: power supply and control module, 902: patch pressure sensor, 10: cloth strip, 11: guide rail, 12: support seat, 13: skateboard, 1401: first tensioning screw, 1402: second tensioning screw, 1501: third strap, 1502: Velcro, 16: anti-slip pad, 17: heater. DETAILED DESCRIPTION

[0028] Example: A fracture fixation device for orthopedic treatment, see Figures 1-10As shown, it includes a mold 1; it also includes a first strap 2, a second strap 3, a buckle 4, an arc-shaped airbag 5, an air outlet frame 6, a partition block 7, an air supply mechanism, a control mechanism, a cloth strip 10, a guide rail 11, a support seat 12, a slide plate 13, a tightening mechanism and a fixing mechanism; the first strap 2 is connected to the left side of the front side of the mold 1; the second strap 3 is connected to the left side of the lower side of the mold 1; buckles 4 are set between the right ends of the first strap 2 and the right ends of the second strap 3 and the mold 1. When the patient puts his foot into the mold 1, the first strap is used to tighten the foot. 2 can limit the patient's calf, and the second strap 3 can limit the patient's foot; an arc-shaped airbag 5 is arranged between the first strap 2 and the inner side of the mold 1, and the arc-shaped airbag 5 is distributed at intervals up and down. The uppermost arc-shaped airbag 5 is recorded as one, and the arc-shaped airbags 5 are recorded in order from top to bottom. If the recorded number is odd, it is the odd-numbered arc-shaped airbag 5, and if the recorded number is even, it is the even-numbered arc-shaped airbag 5; a ventilation hole is opened on the rear side of the mold 1, and the rear side of the mold 1 is connected to The air outlet frame 6 is provided with a partition block 7 on the inside of the mold 1. The partition block 7 is connected to the air outlet frame 6. The partition block 7 is used to divide the ventilation hole into two parts, the left part is connected to the air outlet frame 6, and the right part is connected to the outside world; the mold 1 is provided with a gas transmission mechanism and a control mechanism. The control mechanism is used to control the gas transmission mechanism to input gas into the arc-shaped air bag 5 and the air outlet frame 6, so that the arc-shaped air bag 5 fixes the patient's feet by expansion, and the air outlet frame 6 blows air to the patient's feet to ensure air circulation in the mold 1; The cloth strips 10 are symmetrically arranged on the side of the mold 1; a guide rail 11 is connected between the two cloth strips 10 on the same side; a support seat 12 is slidably arranged between the two guide rails 11; a slide plate 13 is slidably arranged on both guide rails 11; an elastic mechanism is provided on the support seat 12 and the slide plate 13, and the elastic mechanism is used to limit the support seat 12 and the slide plate 13 to ensure that the position of the support seat 12 and the slide plate 13 is stable; a fixing mechanism is provided on the slide plate 13, and the fixing mechanism is used to fix the slide plate 13 on the patient's thigh.

[0029] See Figure 4-Figure 7As shown, the air delivery mechanism includes an air pump 801, a three-way valve 802, a first air pipe 803, a second air pipe 804, a third air pipe 805 and an electric control valve 806; the air pump 801 is installed at the lower left side of the mold 1; three-way valves 802 are installed at intervals on the left side of the mold 1. The number of three-way valves 802 is consistent with that of the arc-shaped airbags 5. The three-way valves 802 are distributed at intervals up and down. The top three-way valve 802 is recorded as one, and the three-way valves 802 are recorded in order from top to bottom. If the recorded number is odd, it means that the odd-numbered three-way valve 802 is missing. 02. If the recorded number is an even number, it is an even-numbered three-way valve 802. The three-way valve 802 is provided with three ports. One of the ports of the three-way valve 802 is connected to the outside world. The air outlet of the air pump 801 is connected to the other port of the three-way valve 802 through the first air pipe 803. The last port of the three-way valve 802 is connected to the arc-shaped airbag 5 through the second air pipe 804; the first air pipe 803 is connected to the third air pipe 805, and the third air pipe 805 is connected to the air outlet frame 6; the third air pipe 805 is provided with an electric control valve 806.

[0030] See Figure 4 and Figure 5 As shown, the control mechanism includes a power supply and control module 901 and a patch pressure sensor 902; the power supply and control module 901 is installed on the left rear part of the mold 1, and the power supply and control module 901 includes a power supply module and a control module. The power supply module is used to supply power to the electrical device, and the control module is used to control the start and stop of the electrical device. The air pump 801, the three-way valve 802 and the electric control valve 806 are all electrically connected to the power supply and control module 901; the patch pressure sensor 902 is installed on the arc-shaped airbag 5, the patch pressure sensor 902 is in contact with the inner wall of the mold 1, and the patch pressure sensor 902 is electrically connected to the power supply and control module 901.

[0031] See Figure 8 and Figure 9 As shown, the tensioning mechanism includes a first tensioning screw 1401 and a second tensioning screw 1402; the upper parts of the left and right sides of the support seat 12 are both threadedly installed with the first tensioning screw 1401, the first tensioning screw 1401 is in contact with the guide rail 11, and the first tensioning screw 1401 is used to limit the support seat 12; the lower parts of the two slides 13 on the side away from each other are both threadedly installed with the second tensioning screw 1402, the second tensioning screw 1402 is in contact with the guide rail 11, and the second tensioning screw 1402 is used to limit the slide 13.

[0032] See Figures 8-10As shown, the fixing mechanism includes a third strap 1501 and a Velcro 1502; two through holes are provided on the upper sides of the two skateboards 13, and the two through holes on the skateboards 13 are distributed up and down, and a third strap 1501 is provided between the two through holes at the same height on the two skateboards 13; Velcro 1502 is provided at the end of the third strap 1501, and the Velcro 1502 is divided into a hook surface and a fleece surface, and the hook surface and the fleece surface of the Velcro 1502 are respectively provided at both ends of the third strap 1501.

[0033] After the patient's calf undergoes orthopedic treatment, the patient's foot is first placed in the mold 1, and then the patient's calf and foot are limited by the first strap 2 and the second strap 3, and then the first strap 2 and the second strap 3 are fixed by the buckle 4, and then the air pump 801 is controlled to turn on by the power supply and control module 901, and the odd-numbered three-way valve 802 is controlled by the power supply and control module 901 to connect the first air pipe 803 with the second air pipe 804, so that the air pump 801 inputs air into the odd-numbered arc-shaped airbag 5 through the first air pipe 803, the second air pipe 804 and the odd-numbered three-way valve 802, thereby expanding the odd-numbered arc-shaped airbag 5, and then the odd-numbered arc-shaped airbag 5 is pressed against the patient's calf by expansion, thereby limiting the patient's calf, and at the same time controlling the electric control valve 80 6 is opened, so that the air in the first air pipe 803 enters the air outlet frame 6 through the third air pipe 805, so that the air outlet frame 6 introduces air into the mold 1, and the air circulates between the two upper and lower adjacent arc-shaped air bags 5 to ensure the air circulation in the mold 1, and then the air is discharged through the vents on the mold 1. During the expansion of the arc-shaped air bags 5, the arc-shaped air bags 5 will continuously apply pressure to the patch pressure sensor 902. When the patch pressure sensor 902 senses that the pressure is greater than the preset value, the patch pressure sensor 902 sends a signal. After receiving the signal, the power supply and control module 901 will control the air pump 801 to stop expanding, so that the odd-numbered arc-shaped air bags 5 stop expanding, thereby avoiding excessive squeezing of the patient's small parts due to excessive expansion of the arc-shaped air bags 5. At the same time, the power supply and control module 901 will also control the electric control valve 806 to close;After a period of time, the air pump 801 is controlled to be turned on again by the power supply and control module 901, and the even-numbered three-way valve 802 is controlled by the power supply and control module 901 to connect the first air tube 803 with the second air tube 804, so that the air pump 801 inputs air into the even-numbered arc-shaped airbags 5 through the first air tube 803, the second air tube 804 and the even-numbered three-way valve 802, thereby causing the even-numbered arc-shaped airbags 5 to expand, and then the even-numbered arc-shaped airbags 5 are pressed against the patient's calf by expansion, thereby limiting the patient's calf. At the same time, the power supply and control module 901 controls the electric control valve 806 to open, so that the air in the first air tube 803 is introduced into the mold 1 again, thereby maintaining the air circulation in the mold 1 again. During the expansion of the arc-shaped airbag 5, the arc-shaped airbag 5 will continuously apply pressure to the patch pressure sensor 902. When the patch pressure sensor 902 senses that the pressure is greater than the preset value, the patch pressure sensor 902 sends a signal After receiving the signal, the power supply and control module 901 will control the air pump 801 to turn off, so that the even-numbered arc-shaped airbags 5 stop expanding. At the same time, the power supply and control module 901 will also control the electric control valve 806 to close, and then the power supply and control module 901 will control the odd-numbered three-way valve 802 to connect the second air pipe 804 to the outside, so that the air in the odd-numbered arc-shaped airbags 5 is discharged through the second air pipe 804 and the odd-numbered three-way valve 802, thereby causing the odd-numbered arc-shaped airbags 5 to shrink and reset, and then the odd-numbered arc-shaped airbags 5 are separated from the patient's calf by shrinkage, and then the above operation is repeated. By using the odd-numbered and even-numbered arc-shaped airbags 5 to alternately limit the patient's calf, part of the patient's calf can be relaxed, thereby avoiding long-term continuous pressure on the patient's limbs. In addition, by regularly ventilating the mold 1, it can ensure that the patient's calf skin breathes normally, preventing local moisture, and then causing itching, skin allergies, or even pressure sores. When the patient needs to walk, the first tensioning screw 1401 can be twisted and rotated to loosen the support base 12, and then the support base 12 can be pulled downward to adjust the position of the support base 12 until the bottom surface of the support base 12 is flush with the bottom surface of the shoe on the other foot, and then the first tensioning screw 1401 is twisted and reset to tighten the support base 12, and then the second tensioning screw 1402 is twisted and rotated to tighten the support base 12. The slide plate 13 is loosened, and then the slide plate 13 is pulled upward until the third strap 1501 on the slide plate 13 is flush with the thigh. Then, the second tightening screw 1402 is twisted in the opposite direction so that the second tightening screw 1402 clamps the slide plate 13. Then, the third strap 1501 is tied to the thigh using the Velcro 1502. In this way, when walking, the patient only needs to use the thigh to exert force to support the support base 12 to walk on the ground, and no longer needs to use auxiliary tools such as crutches or wheelchairs to move; Finally, when not in use, untie the third strap 1501 from the thigh, and untie the first strap 2 and the second strap 3, then take the patient's foot out of the mold 1, and twist the first tensioning screw 1401 to rotate so that the first tensioning screw 1401 loosens the support seat 12, and twist the second tensioning screw 1402 to rotate so that the second tensioning screw 1402 loosens the slide 13, then pull the support seat 12 upward to reset, and then press the slide 13 downward to reset, and finally twist the first tensioning screw 1401 and the second tensioning screw 1402 in reverse to reset, so that the first tensioning screw 1401 clamps the support seat 12, and the second tensioning screw 1402 clamps the slide 13.

[0034] See Figure 8 and Figure 9 As shown, an anti-skid pad 16 is also included; the bottom of the support base 12 is connected to the anti-skid pad 16, and the anti-skid pad 16 is used to stabilize the support base 12.

[0035] By providing the anti-skid pad 16 , when the bottom of the support base 12 contacts the ground, the anti-skid pad 16 can be used to increase the friction between the support base 12 and the ground, thereby ensuring the stability of the support base 12 .

[0036] See Figure 11 As shown, a heater 17 is also included; a heater 17 is installed on the upper left side of the mold 1, and the third air pipe 805 passes through the heater 17. The heater 17 is used to heat the air in the third air pipe 805, and the heater 17 is electrically connected to the power supply and control module 901.

[0037] By setting up the heater 17, when the power supply and control module 901 controls the electric control valve 806 to open, the patient can control the heater 17 to start through the power supply and control module 901, so that the heater 17 heats the air passing through the third air pipe 805, so that hot air is introduced into the mold 1, thereby preventing cold air from being introduced into the mold 1 in a low temperature environment, avoiding frostbite of the patient's calves; when the power supply and control module 901 controls the electric control valve 806 to close, the patient can control the heater 17 to turn off through the power supply and control module 901.

Claims

1. A fracture fixation device for orthopedic treatment, comprising a mold (1), characterized in that: The mold (1) is connected with a first strap (2) and a second strap (3), both of which are used to limit the patient's feet. A buckle (4) is provided between the first strap (2) and the second strap (3) and the mold (1). An arc-shaped air bag (5) is provided between the first strap (2) and the inner side of the mold (1). A ventilation hole is provided on the mold (1). An air outlet frame (6) is connected to the side of the mold (1). A partition block (7) is provided in the mold (1). The partition block (7) is connected to the air outlet frame (6). The partition block (7) is used to divide the ventilation hole into two parts, one of which is connected to the air outlet frame (6). The mold (1) is provided with an air supply mechanism and a control mechanism. The control mechanism is used to control the gas delivery mechanism to input gas into the arc-shaped airbag (5) and the air outlet frame (6), so that the arc-shaped airbag (5) fixes the patient's feet by expansion, and the air outlet frame (6) blows air to the patient's feet. The mold (1) is symmetrically provided with cloth strips (10), the cloth strips (10) are connected to the guide rails (11), and the guide rails (11) are slidably provided with a support seat (12) and a slide plate (13). The support seat (12) and the slide plate (13) are provided with an elastic mechanism, and the elastic mechanism is used to limit the support seat (12) and the slide plate (13). The slide plate (13) is provided with a fixing mechanism, and the fixing mechanism is used to fix the slide plate (13) on the patient's thigh.

2. A fracture fixation device for orthopedic treatment according to claim 1, characterized in that: The air delivery mechanism includes an air pump (801), a three-way valve (802), a first air pipe (803) and a second air pipe (804). The air pump (801) is installed on the side of the mold (1). The three-way valve (802) is also installed on the side of the mold (1) at intervals. The air pump (801) is connected to the three-way valve (802) through the first air pipe (803), and the three-way valve (802) is connected to the arc-shaped air bag (5) through the second air pipe (804).

3. A fracture fixation device for orthopedic treatment according to claim 2, characterized in that: The gas transmission mechanism further comprises a third gas pipe (805) and an electrically controlled valve (806); the first gas pipe (803) is connected to the third gas pipe (805); the third gas pipe (805) is connected to the air outlet frame (6); and the third gas pipe (805) is provided with an electrically controlled valve (806).

4. A fracture fixation device for orthopedic treatment according to claim 1, characterized in that: The control mechanism comprises a power supply and control module (901) and a patch-type pressure sensor (902). The power supply and control module (901) is mounted on the side of the mold (1). The patch-type pressure sensor (902) is mounted on the arc-shaped airbag (5). The patch-type pressure sensor (902) contacts the inner wall of the mold (1).

5. A fracture fixation device for orthopedic treatment according to claim 1, characterized in that: The loosening and tightening mechanism comprises a first loosening and tightening screw (1401) and a second loosening and tightening screw (1402); the first loosening and tightening screw (1401) is threadedly mounted on the support seat (12); and the second loosening and tightening screw (1402) is threadedly mounted on the slide plate (13).

6. A fracture fixation device for orthopedic treatment according to claim 1, characterized in that: The fixing mechanism comprises a third binding strap (1501) and a Velcro (1502); the third binding strap (1501) is mounted on the skateboard (13); and the end of the third binding strap (1501) is provided with the Velcro (1502).

7. A fracture fixation device for orthopedic treatment according to claim 1, characterized in that: It also includes an anti-skid pad (16), the bottom of the support seat (12) is connected to the anti-skid pad (16), and the anti-skid pad (16) is used to stabilize the support seat (12).

8. A fracture fixation device for orthopedic treatment according to claim 3, characterized in that: A heater (17) is also included. The heater (17) is installed on the side of the mold (1). The third air pipe (805) passes through the heater (17). The heater (17) is used to heat the air in the third air pipe (805).

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