CN111643245A - Knee joint protective tool - Google Patents

Abstract

The invention discloses a knee joint supporter, which comprises a thigh support and a calf support. The thigh support and the calf support are movably connected. An inflatable first airbag is detachably arranged on the calf bracket, and a plurality of grid-shaped second airbags are arranged on the surface of the first airbag, and each second airbag is provided with a spring and has an inflatable and deflated airbag. The air nozzle also includes an intelligent and adjustable pulse-type inflation and deflation control device. The inflation and deflation control device is connected with the air nozzle of the second airbag, and the inflation and deflation control device is also connected with the first airbag. The first airbag is provided with a control device. The temperature layer is provided with a temperature control device in the temperature control layer. The air pressure in the air bag of the present invention is pulsed pressurization, the legs are appropriately pressurized or decompressed according to different courses of treatment, and the air bag is cooled and heated to realize the functions of cold and hot compresses, thereby preventing deep vein thrombosis in the legs. .

Description

A knee brace

technical field

The invention relates to the technical field of medical devices, in particular to a knee joint supporter.

Background technique

Knee braces belong to the category of rehabilitation braces. In order to avoid heavy and airtight plaster for patients after knee surgery, a knee brace is specially designed for patients after knee surgery, called multi-angle. Adjustable knee brace. Knee joint braces belong to the category of rehabilitation braces. Often used for rehabilitation after knee surgery. For patients recovering from knee surgery, the recovery period is very important. In addition, ligament surgery takes time to recover, and 6 to 12 weeks after surgery is the weakest link, and functional braces tell patients physically and psychologically that they have completed the surgery, but need transition time to return to normal physical condition, and this is also an excellent physical therapy for joint function recovery. The protective gear also further reassures them psychologically that they will still be well protected after leaving the hospital. At present, when the external force is applied to the splint, the knee brace on the market will cause the affected limb to be subjected to external force and cause secondary injury because there is no buffering effect. In addition, after the brace is fixed for a long time, deep vein thrombosis and Muscle weakness, etc.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a knee joint supporter, wherein the air pressure in the air bag is pulsed pressurization, the legs are appropriately pressurized or decompressed for different courses of treatment, and the air bag is cooled and heated. , to achieve the function of hot and cold compresses, thereby preventing deep vein thrombosis in the legs.

The technical scheme adopted by the present invention is to provide a knee joint supporter, which includes a thigh support and a calf support, the thigh support and the calf support are movably connected, and the thigh support and the calf support have side openings and pass through the openings respectively. An inflatable first air bag is provided on the thigh support and the lower leg support, and a plurality of grid-shaped second air bags are arranged on the surface of the first air bag. The airbags are all provided with springs and have air nozzles for inflating and deflating. It also includes an intelligent and adjustable pulse-type inflation and deflation control device. The inflation and deflation control device is connected with the air nozzle of the second airbag. The deflation control device is also connected with the first airbag, the first airbag is provided with a temperature control layer, and the temperature control layer is provided with a temperature control device.

Preferably, the air charging and discharging control device includes a control unit, a pressure sensor, a solenoid valve and an air pump, the control unit is electrically connected with the pressure sensor, the solenoid valve and the air pump, and the control unit realizes the control of the solenoid valve and the air pump by controlling the solenoid valve and the air pump. The air bag is inflated and deflated by pulse.

Preferably, the temperature control device includes a controller, an electric heater and a temperature control sheet, the controller is electrically connected with the temperature control sheet and the electric heater, and the controller controls the electric heater to cool and heat.

Preferably, the first airbag is connected with the thigh support and the calf support by means of a female and female buckle, the surface of the first airbag is provided with soft fibers, and the surfaces of the thigh support and the calf support are provided with hooked thorns.

Preferably, the thigh support and the lower leg support are hinged, the lower leg support is provided with a support, the thigh support is provided with a node, and the node is rotatably fixed on the support through a pin shaft.

Preferably, guide grooves are formed on the flanges on both sides of the support, guide blocks are provided on both sides of the node, and the guide blocks are located in the guide grooves and slide as the fulcrum rotates.

Preferably, both ends of the spring abut against the top and bottom of the inner wall of the second airbag, respectively.

Preferably, a spherical thickened layer is further provided between the top of the inner wall of the second airbag and the spring, the thickened layer has a spherical surface facing outward, and the thickened layer is made of a soft material.

Preferably, the shape of the second air bag is a circle with a diameter of 15 mm; or an ellipse with a long diameter and a short diameter of 20 mm and 15 mm, respectively.

The advantages of the invention are as follows: 1. The airbag is equipped with a pulse-type inflation and deflation control device, which can fine-tune the air pressure of the airbag. 2. The air bag is also equipped with temperature control devices such as temperature control sheets, which can adjust the temperature of the air in the air bag to achieve hot and cold temperatures. 3. A plurality of grid-shaped second air bags are arranged on the surface of the air bag contacting the legs, and each grid-shaped second air bag is connected to the air nozzle through the inflation and deflation control device to realize independent inflation and deflation, so that the air bag has Partial pressing function; 4. Each second air bag is provided with a spring, which expands and compresses as the second air bag is inflated and deflated, the spring performs a corresponding telescopic action, and the spring touches the inner wall of the second air bag to partially point the leg. Press to improve the accuracy of the pressing part and the pressing effect.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the first airbag and the second airbag of the present invention.

FIG. 3 is an enlarged view of A in FIG. 1 .

Among them, 1, thigh support, 2, calf support, 3, first air bag, 4, second air bag, 5, spring, 6, air nozzle, 7, temperature control layer, 8, support, 9, node, 10, Pin shaft, 11, guide groove, 12, guide block.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , it includes a thigh bracket 1 and a calf bracket 2, and the thigh bracket 1 and the calf bracket 2 are movably connected. In this embodiment, the thigh bracket 1 and the calf bracket 2 are hinged, and the calf bracket 2 is provided with The support 8, the thigh support 1 is provided with a node 9, the node 9 is rotatably fixed on the support 8 through a detachable pin 10, the support 8 is set on the calf support 2, and the node 9 is set with the thigh support 1, the calf support 2 Bearing the gravity of the thigh support 1, and the thigh support 1 is usually larger and heavier than the calf support 2, so the support 8 of the calf support 2 can better support the node 9 of the thigh support 1, and the thigh support 1 and the calf support 2 are added. The connection strength between the legs can be installed one by one when installing the brackets on the legs, and then connected through the pin shaft 10 to adapt to the situation that the legs are completely immobile, so it can be flexibly disassembled and installed according to the actual situation, which is very convenient.

The thigh support 1 and the calf support 2 have side openings and are respectively wrapped around the thigh and calf through the opening. The opening is located on the front side or the side, which is convenient for the support to be wrapped around the legs. Both the thigh support 1 and the calf support 2 are made of hard material. And it has a certain elastic material, and the whole is a support structure. The thigh support 1 and the calf support 2 can be detachably provided with an inflatable first airbag 3, and the first airbag 3 is inflated by an external or built-in air pump. .

As shown in FIG. 2 , the surface of the first airbag 3 is provided with a plurality of grid-shaped second airbags 4, and each second airbag 4 is provided with a spring 5 and has a gas nozzle 6 for inflating and deflating, and the gas nozzle 6 The air pipes are connected to each second air bag 4, and the air nozzles 6 are uniformly distributed on the side of the air bag, which is convenient for wiring and arrangement. 4. The top of the inner wall of the second airbag 4 is also provided with a spherical thickening layer between the spring 5 and the top of the inner wall of the second airbag 4. The spherical surface of the thickening layer faces outward and is close to the top of the inner wall of the second airbag 4, and the spherical surface of the thickening layer is fixed on the spring. 5. The end is fixed on the top of the inner wall of the second air bag 4. The conventional air bag is only inflated to press the leg, while the second air bag 4 of the present invention is different from the conventional air bag. The second air bag 4 of the present invention has a protruding spherical surface to press Surface, the spherical thickening layer also has a certain elastic buffering capacity through the spring 5, which can be gently pressed and touched for the more fleshy parts of the leg, and has cushioning elasticity for the many parts of the leg bones, preventing the spherical thickening layer from being forced The bone is pressed, causing discomfort and pain caused by pressing the bone by a hard object, so the pressing effect of the present invention is better than that of the conventional air bag.

The invention also includes an adjustable pulse-type charging and discharging control device. The charging and discharging control device includes a control unit, a pressure sensor, a solenoid valve and a small air pump. The control unit is electrically connected with the pressure sensor, the solenoid valve and the small air pump. The control unit controls the A solenoid valve and a small air pump are used to realize pulsed inflation and deflation of the airbag, and the solenoid valve realizes quantitative control of the inflation and deflation of the airbag.

The inflation and deflation control device is connected to the air nozzle 6 of the second airbag 4, and the control unit controls the individual inflation and deflation of each second airbag 4. The first airbag 3 is connected to the inflation and deflation control device or an external air pump. In the present invention Since the first airbag 3 is made of a relatively large airbag, unlike the second airbag 4 which needs to be inflated and deflated accurately and quantitatively, the first airbag 3 is inflated and deflated qualitatively, and the second airbag 4 needs to be inflated and deflated quantitatively.

According to the pressure reflected by the pressure sensor, the second air bag 4 realizes intelligent adjustment of the inflation and deflation of the second air bag 4 through the control unit, so as to adapt to the activity requirements of the legs in different periods. , so that the legs have a certain degree of activity, so as to achieve intelligent adjustment.

A temperature control layer 7 is arranged in the first airbag 3, the temperature control layer 7 is close to the second airbag 4, and an electronic temperature control device is arranged in the temperature control layer 7, and the temperature control device includes a controller, an electric heater and a temperature control sheet, The controller is electrically connected with the temperature control sheet and the electric heater. The controller controls the cooling and heating of the electric heater. For example, the electric heater adopts a ceramic electric heater. The ceramic electric heater is a kind of efficient heater with uniform heat distribution. The metal alloy with excellent thermal conductivity ensures uniform temperature of the hot surface and eliminates hot and cold spots in the equipment. It has the advantages of long life, good thermal insulation performance, strong mechanical performance, corrosion resistance, and anti-magnetic field. The thermal insulation layer forms an effective high temperature, high power density, ribbon heater, and is flexible in design and easy to install, so it is very suitable for use in the present invention.

The power source of the charging and discharging control device and the temperature control device is a dry battery or a household AC power source.

The shape of the second air bag 4 is a circle with a diameter of 15mm; or an oval shape, with a long diameter and a short diameter of 20mm and 15mm respectively, the same size as the pulp of a human finger, so that the inner spherical surface of each second air bag 4 is thickened When the layer is pressed on the leg, it can simulate the pressing of the human finger pulp. Usually, the finger pulp presses the acupoints, which has better comfort and accuracy.

Embodiment 1, the flanges on both sides of the support 8 are provided with guide grooves 11. As shown in Figure 3, the guide groove 11 is an arc-shaped trajectory, and the arc-shaped trajectory is set according to the movement trajectory of the fulcrum. The guide block 12 is located in the guide groove 11 and slides as the fulcrum rotates, so as to enhance the stability of the fulcrum during the rotation.

In the second embodiment, the first airbag 3 is connected with the thigh support 1 and the calf support 2 by means of a female and female buckle. The surface of the first airbag 3 is provided with soft fibers, and the surfaces of the thigh support 1 and the calf support 2 are provided with hooked hard thorns. , so that the first airbag 3 is detachably connected with the thigh support 1 and the calf support 2 . The rest are the same as in Example 1.

The preferred embodiments of the present invention have been described above, but should not be construed as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed, and all changes made within the protection scope of the independent claim of the present invention are all within the protection scope of the present invention.

Claims (9)

1. The utility model provides a knee joint protective equipment, it includes thigh support and shank support, thigh support and shank support swing joint, thigh support and shank support lateral part opening and through the opening embrace respectively on thigh and shank, equal detachably is equipped with the first gasbag of inflatable on thigh support and the shank support, a serial communication port, first gasbag surface is equipped with a plurality of latticed second gasbags, all is equipped with the spring in every second gasbag and has the air cock that is used for inflating the gassing, and it still includes intelligent adjustable pulsed inflation control device, inflation control device is connected with second gasbag air cock, inflation control device still is connected with first gasbag, be equipped with the temperature control layer in the first gasbag, be equipped with temperature control device in the temperature control layer.

2. The knee brace of claim 1, wherein: the inflation and deflation control device comprises a control unit, a pressure sensor, an electromagnetic valve and an air pump, wherein the control unit is electrically connected with the pressure sensor, the electromagnetic valve and the air pump, and the control unit realizes pulse type inflation and deflation of the air bag by controlling the electromagnetic valve and the air pump.

3. The knee brace of claim 1, wherein: the temperature control device comprises a controller, an electric heater and a temperature control sheet, wherein the controller is electrically connected with the temperature control sheet and the electric heater, and the controller controls the electric heater to refrigerate and heat.

4. The knee brace of claim 1, wherein: the first air bag is connected with the thigh support and the shank support in a snap fastener mode, soft fibers are arranged on the surface of the first air bag, and the surface of the thigh support and the surface of the shank support are provided with hard thorns with hooks.

5. The knee brace of claim 1 or 4, wherein: the thigh support and the shank support are hinged, a support is arranged on the shank support, a node is arranged on the thigh support, and the node is rotationally fixed on the support through a pin shaft.

6. The knee brace of claim 5, wherein: guide grooves are formed in flanges on two sides of the support, guide blocks are arranged on two sides of the joint, and the guide blocks are located in the guide grooves and slide along with rotation of the supporting points.

7. The knee brace of claim 1, wherein: and two ends of the spring respectively abut against the top and the bottom of the inner wall of the second air bag.

8. The knee brace of claim 1, wherein: still be equipped with a sphere thickening layer between second gasbag inner wall top and the spring, the thickening layer sphere is outside, the thickening layer is made for soft materials.

9. The knee brace of claim 8, wherein: the second air bag is circular, and the diameter of the second air bag is 15 mm; or an ellipse, and the long diameter and the short diameter of the ellipse are respectively 20mm and 15 mm.

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