Limb tool capable of avoiding pressure sores

Abstract

The utility model discloses a limb tool capable of avoiding pressure sores. The limb tool comprises a limb tool outer layer, a limb tool inner layer, an inflation device and an air bag device. The limb tool inner layer is arranged on the inner side of the limb tool outer layer; the air bag device is arranged in an interlayer formed by a gap between the limb tool outer layer and the limb tool inner layer; an inflation main pipe is connected between the inflation device and the airbag device; the airbag device comprises a leg airbag, a knee joint airbag and an ankle joint airbag; the leg airbag, the knee joint airbag and the ankle joint airbag are respectively divided into two groups of sub-airbags, and each group of sub-airbags are arranged at intervals; the inflation main pipe is connected with the inflation branch pipe after entering the interlayer; each group of sub-air bags is connected with the corresponding air inflation branch pipe through an independent air inflation pipeline; an electromagnetic valve is arranged on the independent inflation pipeline connected with each group of sub-airbags; the inflation device comprises an inflation pump and an inflation control system. According to the device, blood of the limbs can be well circulated by changing the mode that the limb tools extrude the parts of the limbs, and pressure sores of the limbs caused by long-time wearing of the limb tools are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical auxiliary instrument, concretely relates to a limb tool for avoiding pressure sore. BACKGROUND

[0002] The limb tool is a kind of medical auxiliary instrument that is set on the outside of human body injury limb, and its function is to fix injury limb after operation, limit limb movement, thereby assisting operation treatment and physical rehabilitation.Lower limb limb tool is the most common kind of limb tool, and wearing limb tool after lower limb operation can play the role of preventing joint flexion, to avoid wound cracking.The wearing time of limb tool is determined according to operation trauma and recovery condition, and generally, minimally invasive surgery such as knee joint scar excision needs to be worn for several days, and surgery such as leg bone surgery even needs to be worn for several months.Limb tool can generate certain pressure to limb when being worn, and long-time wearing of limb tool can compress limb blood vessels, affect blood circulation, especially at joint part, and pressure sore is easily formed. SUMMARY

[0003] The utility model discloses a kind of limb tools for avoiding pressure sore, to solve the problems that patient wears lower limb limb tool in prior art and easily causes pressure sore to skin.The utility model device can change the way that limb tool extrudes limb, make limb blood get good circulation, avoid long-time wearing of limb tool and make limb appear pressure sore.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of limb tool for avoiding pressure sore, including limb tool outer layer, limb tool inner layer, inflation device and air bag device;The limb tool outer layer corresponds to lower limbs of human body;The limb tool inner layer is arranged in the inside of limb tool outer layer;The gap between the limb tool outer layer and the limb tool inner layer forms interlayer;The air bag device is arranged in interlayer;Inflation main pipe is connected between the inflation device and the air bag device;The air bag device includes leg air bag, knee joint air bag and ankle joint air bag;The leg air bag, knee joint air bag and ankle joint air bag are each divided into two groups of sub air bags, and each group of sub air bags is arranged with interval;After inflation main pipe is led into interlayer, inflation branch pipe is connected out;Each group of sub air bags is connected with inflation branch pipe by independent inflation pipeline;Electromagnetic valve is arranged on the independent inflation pipeline connected to each group of sub air bags;The inflation device includes inflation pump and inflation control system;The electromagnetic valve is connected with control system.

[0006] The outer layer of the limb tool is made of hard material, which limits the lower limbs of the patient; the inner layer of the limb tool has a certain softness, but not too soft, mainly to protect the skin of the patient and cooperate with the outer layer of the limb tool to limit the movement of the patient's limbs; the air bag device is inflated by the inflation device, and is inflated to clamp the inner layer of the limb tool, so that the patient's limbs are tightly fixed; the inflation pump of the inflation device inflates the air bag device through the inflation main pipe and the inflation branch pipe; the leg air bag corresponds to the thighs and calves of the patient; the knee joint air bag corresponds to the knee joint of the patient; the ankle joint air bag corresponds to the ankle joint of the patient; the air bags of the above-mentioned parts are arranged in two groups of interval air bags, which function is that all air bags are fully inflated in general state, at this time the clamping force of the inner layer of the limb tool on the patient's limbs is the largest, which is beneficial to the limb tool to limit the patient's limbs; in order not to hinder the blood circulation of the patient, the interval air bags of each part are alternately deflated and inflated within a certain time, so that the main stress point of the patient is changed, so that the patient's limbs are relaxed after a long time of compression, promoting blood circulation and preventing pressure sores, and at the same time, due to the interval inflation and deflation, while one group of air bags is deflated to reduce pressure, the other group of air bags is continuously kept in a pressurized state, so that the limb tool will not lose the limitation and fixation of the patient's limbs; the electromagnetic valve is used to control the on-off of the independent inflation pipe, and to inflate and deflate; the inflation pump is used for restarting; the control system includes a timing module and an ARM processor, which is used to control the start and stop of the inflation pump and the on-off of the electromagnetic valve.

[0007] As a further technical improvement, the leg air bag includes thigh air bag I and thigh air bag II corresponding to the position of the thigh, and also includes calf air bag I and calf air bag II corresponding to the position of the calf.

[0008] As a further technical improvement, the thigh air bag I and the thigh air bag II are arranged in an interval arrangement; all the thigh air bag I is connected with a leg inflation branch pipe I, and all the thigh air bag II is connected with a leg inflation branch pipe II; the calf air bag I and the calf air bag II are also arranged in an interval arrangement; all the calf air bag I is connected with a leg inflation branch pipe III; and all the calf air bag II is connected with a leg inflation branch pipe IV. In most states, the thigh air bag I and the thigh air bag II are simultaneously fully inflated, keeping the limb tool clamped and fixed on the thigh; after a certain set time, the thigh air bag I is deflated, while the thigh air bag II remains in an inflated state, at this time the part clamped by the thigh air bag I is relaxed, and the blood circulation is good, while the part clamped by the thigh air bag II remains under pressure, continuously keeping the limb tool limiting and fixing the thigh of the patient; after a certain time, the thigh air bag I is inflated and the thigh air bag II is deflated, so as to rotate the stress position of the thigh of the patient, ensuring smooth blood circulation and avoiding pressure sores; according to the same principle, the calf air bag I and the calf air bag II also rotate inflation and deflation, preventing calf pressure sores.

[0009] As a further technical improvement, the leg air branch pipe I and the leg air branch pipe II are provided with an air inlet electromagnetic valve and are connected to an air outlet branch pipe; the air outlet branch pipe is provided with an air outlet electromagnetic valve. The air inlet electromagnetic valve is used to control the on-off of the leg air branch pipe I and the leg air branch pipe II, thereby controlling the inflation of the thigh air bag I and the thigh air bag II; when deflating, the air outlet electromagnetic valve is opened, and air is discharged through the air outlet branch pipe; the leg air branch pipe III and the leg air branch pipe IV are also provided with the same air inlet electromagnetic valve, air outlet branch pipe and air outlet electromagnetic valve for the inflation and deflation of the calf air bag I and the calf air bag II.

[0010] As a further technical improvement, the knee joint air bag includes a knee joint air bag I and a knee joint air bag II corresponding to the knee joint part of the human body; the ankle joint air bag includes an ankle joint air bag I and an ankle joint air bag II corresponding to the ankle joint part of the human body; the arrangement structure of the knee joint air bag I and the knee joint air bag II, the ankle joint air bag I and the ankle joint air bag II, and the connection structure between the inflation device are the same as those of the thigh air bag I and the thigh air bag II. The knee joint air bag is used to protect the knee joint part from pressure ulcers; all the knee joint air bag I and the knee joint air bag II are respectively connected to the knee joint air branch pipe I and the knee joint air branch pipe II, and are also respectively provided with corresponding air inlet electromagnetic valves, air outlet branch pipes and air outlet electromagnetic valves for the inflation and deflation of the knee joint air bag I and the knee joint air bag II; the ankle joint air bag is used to protect the ankle joint of the patient from pressure ulcers; all the ankle joint air bag I and the ankle joint air bag II are respectively connected to the ankle joint air branch pipe I and the ankle joint air branch pipe II, and are also respectively provided with corresponding air inlet electromagnetic valves, air outlet branch pipes and air outlet electromagnetic valves for the inflation and deflation of the ankle joint air bag I and the ankle joint air bag II.

[0011] As a further technical improvement, the outer layer of the limb is provided with a fixing belt; the middle part of the fixing belt is wrapped around the outside of the outer layer of the limb; the two ends of the fixing belt are provided with magic tapes. The fixing belt is used to fix the outer layer of the limb and the inner layer of the limb on the lower limbs of the patient.

[0012] As a further technical improvement, the outer layer of the limb and the inner layer of the limb are both provided with air holes. The air holes can ventilate and ventilate the lower limbs of the patient.

[0013] As a further technical improvement, the inflation device is provided with a display screen and control buttons. The display screen and control buttons are used to set the time interval and frequency of the interval inflation and deflation of each air bag.

[0014] The use method of the limb for avoiding pressure ulcers described above:

[0015] When in use, the device is worn on the patient's leg after lower limb surgery; at this time, the leg air bag corresponds to the patient's thigh and lower leg, the knee joint air bag corresponds to the patient's knee joint, and the ankle joint air bag corresponds to the patient's ankle joint; in a general state, all air bags are inflated, and the inner layer of the limb is pressed to the patient's leg, thereby limiting the patient's leg movement; the inflation and deflation time interval of each part air bag is set through the inflation device; after the set time arrives, the exhaust electromagnetic valve on the exhaust branch pipe corresponding to the thigh sub-air bag I is opened, the thigh sub-air bag I is exhausted, at this time, the pressure of the thigh part originally pressed by the thigh sub-air bag I is reduced, and the patient's blood circulation is good; after a certain time, the exhaust electromagnetic valve corresponding to the thigh sub-air bag I is closed, the intake electromagnetic valve on the leg inflation branch pipe I is opened, the inflation device inflates the thigh sub-air bag I, and after inflation, the intake electromagnetic valve is closed; then, the exhaust electromagnetic valve corresponding to the thigh sub-air bag II is opened to exhaust the thigh sub-air bag II; in this way, the part of the thigh muscle subjected to pressure and clamping is changed in time, so that the blood circulation of the thigh is maintained good, and pressure sores are avoided; the lower leg sub-air bag I, the lower leg sub-air bag II, the knee joint air bag and the ankle joint air bag are also inflated and deflated in the above-mentioned manner, so that the blood circulation of the patient's whole lower limb is good, and pressure sores are avoided.

[0016] The technical scheme of the utility model has the following beneficial effects:

[0017] 1. The utility model discloses a thigh sub-air bag, a knee joint air bag and an ankle joint air bag are grouped and inflated and exhausted in turns in a group mode, the force position of the patient's leg subjected to pressure and clamping can be changed, the same position of the patient's thigh, lower leg, knee joint and ankle joint is not pressed for a long time, blood circulation is ensured to be good, and pressure sores are avoided.

[0018] 2. The utility model discloses a limb outer layer, a limb inner layer and an air bag device, the patient's skin can be protected while the patient's limbs are fixed and limited, the patient's discomfort when wearing the limb is reduced, and the skin is prevented from being injured.

[0019] 3. The limb outer layer and the limb inner layer of the utility model are all provided with air holes, the skin of the patient's limbs can be ventilated, and the patient's discomfort caused by stuffiness is avoided. DRAWINGS

[0020] Fig. 1 It is the whole structure schematic diagram of the device.

[0021] Fig. 2 It is the internal structure schematic diagram of the device.

[0022] Fig. 3 It is the connecting structure schematic diagram of the corresponding pipeline of the thigh sub-air bag I and the thigh sub-air bag II.

[0023] Reference numerals: 1-Outer layer of limb fitting, 2-Inner layer of limb fitting, 3-Leg airbag, 4-Knee joint airbag, 5-Ankle joint airbag, 6-Inflation device, 7-Inflation main tube, 8-Fixing strap, 9-Ventilation hole; 301-Thigh airbag I, 302-Thigh airbag II, 303-Lower leg airbag I, 304-Lower leg airbag II, 401-Knee joint airbag I, 402-Knee joint airbag II, 501-Ankle joint airbag I, 5 02-Ankle joint air bladder II, 601-Inflation branch tube, 602-Leg inflation branch tube I, 603-Leg inflation branch tube II, 604-Knee joint inflation branch tube I, 605-Knee joint inflation branch tube II, 606-Leg inflation branch tube III, 607-Leg inflation branch tube IV, 608-Ankle joint inflation branch tube I, 609-Ankle joint inflation branch tube II, 610-Exhaust branch tube, 611-Intake solenoid valve, 612-Exhaust solenoid valve. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1:

[0026] like Figs. 1-3 As shown, a limb support for preventing pressure sores includes an outer layer 1, an inner layer 2, an inflation device 6, and an airbag device. The outer layer 1 corresponds to the lower limb. The inner layer 2 is located inside the outer layer 1. A gap between the outer layer 1 and the inner layer 2 forms a sandwich. The airbag device is located within the sandwich. An inflation main pipe 7 connects the inflation device 6 and the airbag device. The airbag device includes a leg airbag 3, a knee joint airbag 4, and an ankle joint airbag 5. Each of the leg airbag 3, knee joint airbag 4, and ankle joint airbag 5 is divided into two groups of airbags, with each group of airbags spaced apart. The inflation main pipe 7 extends into the sandwich and then connects to an inflation branch pipe 601. Each group of airbags is connected to the inflation branch pipe 601 via an independent inflation pipe. A solenoid valve is provided on the independent inflation pipe connected to each group of airbags. The inflation device 6 includes an inflation pump and an inflation control system. The solenoid valve is connected to the control system.

[0027] The leg airbag 3 includes thigh airbag I 301 and thigh airbag II 302 corresponding to the thigh position, and also includes calf airbag I 303 and calf airbag II 304 corresponding to the calf position.

[0028] The thigh sub-air bags 301 and 302 are arranged in an interval; all the thigh sub-air bags 301 are connected with a leg air branch pipe 1 602, and all the thigh sub-air bags 302 are connected with a leg air branch pipe 2 603; the calf sub-air bags 303 and 304 are also arranged in an interval; all the calf sub-air bags 303 are connected with a leg air branch pipe 3 606, and all the calf sub-air bags 304 are connected with a leg air branch pipe 4 607.

[0029] The leg air branch pipe 1 602 and the leg air branch pipe 2 603 are provided with an air inlet electromagnetic valve 611 and are connected with an air outlet branch pipe 610; the air outlet branch pipe 610 is provided with an air outlet electromagnetic valve 612.

[0030] The knee joint air bag 4 comprises a knee joint sub-air bag 1 401 and a knee joint sub-air bag 2 402 corresponding to the knee joint part of the human body; the ankle joint air bag 5 comprises an ankle joint sub-air bag 1 501 and an ankle joint sub-air bag 2 502 corresponding to the ankle joint part of the human body; the arrangement structure of the knee joint sub-air bag 1 401 and the knee joint sub-air bag 2 402 and the ankle joint sub-air bag 1 501 and the ankle joint sub-air bag 2 502 and the connection structure between the air charging device 6 are the same as those of the thigh sub-air bag 1 301 and the thigh sub-air bag 2 302.

[0031] The knee joint air bag 4 is used for protecting the knee joint part from pressure sore; all the knee joint sub-air bags 1 401 and 2 402 are respectively connected with a knee joint air branch pipe 1 604 and a knee joint air branch pipe 2 605 and are respectively provided with corresponding air charging electromagnetic valves 611, air outlet branch pipes 610 and air outlet electromagnetic valves 612, which are used for the knee joint sub-air bags 1 401 and 2 402 to be inflated and deflated alternately; the ankle joint air bag 5 is used for protecting the ankle joint of the patient from pressure sore; all the ankle joint sub-air bags 1 501 and 2 502 are respectively connected with an ankle joint air branch pipe 1 608 and an ankle joint air branch pipe 2 609 and are respectively provided with corresponding air charging electromagnetic valves 611, air outlet branch pipes 610 and air outlet electromagnetic valves 612, which are used for the ankle joint sub-air bags 1 501 and 2 502 to be inflated and deflated alternately.

[0032] The limb outer layer 1 is provided with a fixing belt 8; the middle part of the fixing belt 8 is half-wrapped outside the limb outer layer 1; the two ends of the fixing belt 8 are provided with magic tapes.

[0033] The use method of the utility model is as follows:

[0034] When in use, the device is worn on the leg of a patient after lower limb surgery; at this time, the leg air bag 3 corresponds to the patient's thigh and lower leg, the knee joint air bag 4 corresponds to the patient's knee joint, and the ankle joint air bag 5 corresponds to the patient's ankle joint; in the general state, all air bags are inflated, and the inner layer 2 of the limb is pressed to the patient's leg, which limits the patient's leg movement; the inflation and deflation time interval of each part of the air bag is set through the inflation device 6; after the set time arrives, the exhaust electromagnetic valve 612 on the exhaust branch pipe 610 corresponding to the thigh sub-air bag I 301 is opened, the thigh sub-air bag I 301 is exhausted, at this time, the pressure of the thigh part originally pressed by the thigh sub-air bag I 301 is reduced, and the patient's blood circulation is good; after a certain time, the exhaust electromagnetic valve 612 corresponding to the thigh sub-air bag I 301 is closed, the intake electromagnetic valve 611 on the leg inflation branch pipe I 602 is opened, and the thigh sub-air bag I 301 is inflated by the inflation device 6, and after being filled, the intake electromagnetic valve 611 is closed; then the exhaust electromagnetic valve 612 corresponding to the thigh sub-air bag II 302 is opened to exhaust the thigh sub-air bag II 302; in this way, the part of the thigh muscle subjected to pressure and clamping is changed in time, so that the blood circulation of the thigh is maintained good, and pressure sores are not formed; the lower leg sub-air bag I 303, the lower leg sub-air bag II 304, the knee joint air bag 4 and the ankle joint air bag 5 are also inflated and deflated in the above-mentioned manner, so that the blood circulation of the patient's whole lower limb is good, and pressure sores are avoided.

[0035] Example two:

[0036] The difference between this embodiment and example one is that the outer layer 1 of the limb and the inner layer 2 of the limb are both provided with air holes 9.

[0037] The use method of this embodiment is the same as that of example one.

[0038] Example three:

[0039] The difference between this embodiment and example two is that the inflation device 6 is provided with a display screen and control buttons.

[0040] The use method of this embodiment is the same as that of example one.

[0041] Example four:

[0042] The difference between this embodiment and example three is that the outer layer 1 of the limb and the inner layer 2 of the limb are both provided with air holes 9, and the inflation device 6 is provided with a display screen and control buttons.

[0043] The use method of this embodiment is the same as that of example one.

[0044] The above examples are only exemplary embodiments of the present application, and are not used to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.

[0045] In the description of the present application, it should be pointed out that the directions or position relationships indicated by the terms "inner", "front", "rear", "left", "right" and the like are based on the directions or position relationships shown in the drawings, or the directions or position relationships of the present application product when it is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0046] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A limb to avoid pressure sores, characterized by: The application relates to a lower limb airbag device, which comprises an outer limb layer (1), an inner limb layer (2), an air charging device (6) and an airbag device; the outer limb layer (1) corresponds to a human lower limb; the inner limb layer (2) is arranged on the inner side of the outer limb layer (1); a gap between the outer limb layer (1) and the inner limb layer (2) forms a sandwich layer; the airbag device is arranged in the sandwich layer; the air charging device (6) is connected with the airbag device through an air charging main pipe (7). The airbag device comprises leg airbags (3), knee joint airbags (4) and ankle joint airbags (5); the leg airbags (3), the knee joint airbags (4) and the ankle joint airbags (5) are each divided into two groups of sub airbags, and the sub airbags in each group are arranged at intervals; the air charging main pipe (7) is connected with an air charging branch pipe (601) after passing through the sandwich layer; each group of the sub airbags is connected with the air charging branch pipe (601) through independent air charging pipelines; an electromagnetic valve is arranged on each independent air charging pipeline connected with the sub airbags. The air charging device (6) comprises an air charging pump and an air charging control system; the electromagnetic valve is connected with the control system.

2. The pressure ulcer-preventing orthosis according to claim 1, characterized in that The leg airbags (3) comprise thigh sub airbags I (301) and thigh sub airbags II (302) corresponding to thigh positions, and further comprise calf sub airbags I (303) and calf sub airbags II (304) corresponding to calf positions.

3. The pressure ulcer-preventing orthosis according to claim 2, characterized in that The thigh sub airbags I (301) and the thigh sub airbags II (302) are arranged at intervals; all the thigh sub airbags I (301) are connected with a leg air charging branch pipe I (602), and all the thigh sub airbags II (302) are connected with a leg air charging branch pipe II (603); the calf sub airbags I (303) and the calf sub airbags II (304) are also arranged at intervals; all the calf sub airbags I (303) are connected with a leg air charging branch pipe III (606), and all the calf sub airbags II (304) are connected with a leg air charging branch pipe IV (607).

4. The pressure ulcer-preventing orthosis according to claim 3, characterized in that Air inlet electromagnetic valves (611) are arranged on the leg air charging branch pipe I (602) and the leg air charging branch pipe II (603), and exhaust branch pipes (610) are connected to the air inlet electromagnetic valves (611); exhaust electromagnetic valves (612) are arranged on the exhaust branch pipes (610).

5. The pressure ulcer-preventing orthosis according to claim 2, characterized in that The knee joint airbags (4) comprise knee joint sub airbags I (401) and knee joint sub airbags II (402) corresponding to knee joint positions of a human body; the ankle joint airbags (5) comprise ankle joint sub airbags I (501) and ankle joint sub airbags II (502) corresponding to ankle joint positions of a human body; the arrangement structures of the knee joint sub airbags I (401), the knee joint sub airbags II (402), the ankle joint sub airbags I (501) and the ankle joint sub airbags II (502) and the connection structures between the air charging device (6) are the same as those of the thigh sub airbags I (301) and the thigh sub airbags II (302).

6. The pressure ulcer avoidance orthosis of claim 1, wherein: Fixing belts (8) are arranged on the outer limb layer (1); the middle parts of the fixing belts (8) are half-wrapped around the outer limb layer (1); magic tapes are arranged at the two ends of the fixing belts (8).

7. The pressure ulcer avoidance orthosis of claim 1, wherein: Vent holes (9) are arranged on the outer limb layer (1) and the inner limb layer (2).

8. The pressure ulcer avoidance orthosis of claim 1, wherein: A display screen and control buttons are arranged on the air charging device (6).

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