CN106955177B

CN106955177B - Knee joint corrector

Info

Publication number: CN106955177B
Application number: CN201610011913.2A
Authority: CN
Inventors: 段淑敏; 李明举
Original assignee: Shanghai Is Kang Instrument Co ltd
Current assignee: Shanghai Is Kang Instrument Co ltd
Priority date: 2016-01-08
Filing date: 2016-01-08
Publication date: 2020-04-24
Anticipated expiration: 2036-01-08
Also published as: CN106955177A

Abstract

The invention discloses a knee joint corrector, which comprises a thigh fixing part, a joint correcting part, a shank fixing part and a control panel. The thigh fixing part comprises a thigh fixing plate and a thigh fixing band, and the shank fixing part comprises a shank fixing plate and a shank fixing band. The joint correcting part comprises an outer shell, an outer knee pressure air bag, an inner knee pressure air bag, a first miniature air pump, a second miniature air pump, a first one-way valve, a second one-way valve, a first air guide pipe and a second air guide pipe. The shell body is communicated up and down, and the inner side is provided with a left chamber and a right chamber. An outer knee pressure bladder and an inner knee pressure bladder are mounted in the left and right chambers, respectively. The first miniature air pump and the first one-way valve are arranged on the control panel; the thigh fixing plate is connected to the upper end of the outer shell, and the shank fixing plate is connected to the lower end of the outer shell. The invention can adjust the gas flow direction between the two air bags according to the specific situation of the knee of the patient, thereby achieving the technical effect of respectively treating the X-shaped leg and the O-shaped leg.

Description

Knee joint corrector

Technical Field

The invention belongs to the technical field of orthopedic instruments, and particularly relates to a knee joint appliance for correcting and treating human body genu varum and genu valgum.

Background

The knee varus of the human leg is commonly called as the O-shaped leg and the rolling leg; the knee valgus of the human leg, commonly called as the X-shaped leg, is a defect which seriously affects the figure of people and can cause secondary osteoarthritis to harm the body health of people. At present, for patients with serious knee joint deformation, the means of operative osteotomy and postoperative internal fixator for fixing broken bones are mostly adopted when the knee joint is corrected, so as to change the joint structure and achieve the aim of correcting the knee joint. However, this correction method is not only risky, painful, but also costly. It is not suitable for use in the mild knee. The principle of the correction is basically consistent by adopting a mode of external fixation of splints or putters, and the stable structure of the inner side/the outer side of the knee joint is recovered by relaxing the inner side/the outer side collateral ligament of the knee joint. Thereby enabling the tibia to be in external/internal inversion and achieving the correction target. At present, the knee joint corrector on the market is only suitable for sitting posture use, is not easy to adjust and correct the angle after being bound, and has the problems of incapability of walking, weak self-adjusting capability, limited functionality and the like. How to overcome the above technical difficulties is a direction that needs to be studied by those skilled in the art.

Disclosure of Invention

In order to solve the problems, the invention provides a knee joint appliance.

The specific technical scheme adopted is as follows:

a knee joint appliance comprises a thigh fixing part, a joint correcting part, a shank fixing part and a control panel. The thigh fixing part comprises a thigh fixing plate and a thigh fixing belt, and the thigh fixing belt is connected with the thigh fixing plate and used for fixing the human body thigh on the thigh fixing plate; the shank fixing part comprises a shank fixing plate and a shank fixing strap, and the shank fixing strap is connected with the shank fixing plate and used for fixing the shank of the human body on the shank fixing plate. The joint correcting part comprises an outer shell, an outer knee pressure air bag, an inner knee pressure air bag, a first miniature air pump, a second miniature air pump, a first one-way valve, a second one-way valve, a first air guide pipe and a second air guide pipe. The outer shell is communicated up and down, two symmetrical left and right chambers are arranged on the inner side of the outer shell, and the outer knee pressure air bag and the inner knee pressure air bag are respectively arranged in the left and right chambers on the inner side of the outer shell. The two ends of the first air duct respectively extend into the left and right chambers at the inner side of the outer shell from the outer side of the outer shell and are respectively connected with the outer knee pressure air bag and the inner knee pressure air bag; the first miniature air pump and the first one-way valve are sequentially arranged on the first air duct, and the first one-way valve realizes one-way conduction of the outer knee pressure air bag to the inner knee pressure air bag. Two ends of the second air duct respectively extend into the left and right chambers at the inner side of the outer shell from the outer side of the outer shell and are respectively connected with the outer knee pressure air bag and the inner knee pressure air bag; the second miniature air pump and the second one-way valve are sequentially arranged on the second air duct; the second one-way valve realizes the one-way conduction of the inner knee pressure air bag to the outer knee pressure air bag. The first micro air pump and the second micro air pump are arranged on the control panel; the thigh fixing plate is connected to the upper end of the outer shell through a rotating shaft, and the shank fixing plate is connected to the lower end of the outer shell through a rotating shaft.

By adopting the technical scheme: the thigh fixing plate is fixed on the thigh part of the patient through the thigh fixing band, and the shank fixing plate is fixed on the shank part of the patient through the shank fixing band. The knee of the patient is located within the outer shell. If the patient is an X-shaped foot, the first micro air pump is controlled to work at the moment, so that the air in the outer knee pressure air bag flows towards the inner knee pressure air bag in a one-way mode. Causing the outer knee pressure bladder to collapse and the inner knee pressure bladder to expand. The knee of the patient is pressed by the inner knee pressure air bag and is corrected towards the outer side; if the patient is an O-shaped foot, the second micro air pump is controlled to work at the moment, so that the air in the inner knee pressure air bag flows towards the outer knee pressure air bag in a one-way mode. Causing the inner knee pressure bladder to collapse and the outer knee pressure bladder to expand. The knee of the patient is pressed by the outer knee pressure air bag and is stressed and corrected towards the inner side.

Preferably, in the knee orthosis: the thigh fixing plate and the shank fixing plate are arc plates.

By adopting the technical scheme: the shapes of the thigh fixing plate and the shank fixing plate are more fit with the shape of the legs of a human body, and discomfort caused by wearing the knee joint appliance is reduced.

More preferably, in the knee orthosis: and soft EVA layers are arranged on the inner walls of the thigh fixing plate and the shank fixing plate.

By adopting the technical scheme: make the patient when dressing the knee joint and correcting the ware, the soft EVA layer of shank muscle contact improves the comfort level that the product was dressed.

Still more preferably, in the above knee orthosis: the thigh fixing belt and the shank fixing belt are made of hook and loop fasteners or elastic belts.

Compared with the prior art, the invention has simple structure and easy preparation. The gas flow direction between the two air bags can be adjusted according to the specific conditions of the knee of the patient, and the technical effect of respectively treating the X-shaped leg and the O-shaped leg is achieved.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention; (in this figure, EVA Soft layer is omitted.)

Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.

The correspondence between the components and the reference numbers in the above figures is as follows:

1. a thigh fixing part; 2. a joint correcting part; 3. a shank securing portion; 4. a control panel; 5. a rotating shaft; 11. a thigh fixing plate; 12. thigh fixing straps; 21. an outer housing; 22. an outer knee pressure bladder; 23. an inner knee pressure bladder; 24. a first micro air pump; 25. a second micro air pump; 26. a first check valve; 27. a second one-way valve; 28. a first air duct; 29. a second air duct; 31. a shank fixing plate; 32. a shank fixing band.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described with reference to the accompanying drawings.

A knee joint appliance comprises a thigh fixing part 1, a joint correcting part 2, a shank fixing part 3 and a control board 4.

Wherein, thigh fixed part 1 includes thigh fixed plate 11 and thigh fixed band 12: the thigh fixing strap 12 is connected to the thigh fixing plate 11. The lower leg fixing part 3 comprises a lower leg fixing plate 31 and a lower leg fixing band 32, and the lower leg fixing band 32 is connected with the lower leg fixing plate 31. The thigh fixing plate 11 and the shank fixing plate 31 are respectively connected to the upper end and the lower end of the outer shell 21 through the rotating shaft 5. Thigh fixed plate 11 and shank fixed plate 31 are the circular arc board, and all are equipped with soft EVA layer on thigh fixed plate 11 and the shank fixed plate 31 inner wall. The thigh fixing belt 12 and the shank fixing belt 32 are elastic belts.

The joint correcting part 2 comprises an outer shell 21, an outer knee pressure air bag 22, an inner knee pressure air bag 23, a first micro air pump 24, a second micro air pump 25, a first one-way valve 26, a second one-way valve 27, a first air duct 28 and a second air duct 29: the outer shell 21 is communicated up and down, two symmetrical left and right chambers are arranged on the inner side of the outer shell, and the outer knee pressure air bag 22 is arranged in the left chamber; the inner knee pressure bladder 23 is mounted within the right chamber.

The first air duct 28 extends into the left and right chambers inside the outer shell 21 from the outside of the outer shell 21 and is respectively connected with the outer knee pressure air bag 22 and the inner knee pressure air bag 23; the first micro air pump 24 and the first one-way valve 26 are sequentially arranged on the first air duct 28, and the first one-way valve 26 realizes the one-way conduction of the outer knee pressure air bag 22 to the inner knee pressure air bag 23. The second air duct 29 extends into the left and right chambers inside the outer shell 21 from the outer side of the outer shell 21 and is respectively connected with the outer knee pressure air bag 22 and the inner knee pressure air bag 23; the second micro air pump 25 and the second one-way valve 27 are sequentially arranged on the second air duct 29; the second non-return valve 27 enables a non-return connection of the inner knee pressure airbag 23 to the outer knee pressure airbag 22. The first miniature air pump 24, the second miniature air pump 25, the first one-way valve 26 and the second one-way valve 27 are arranged on the control board 4.

In practice, the method of use is as follows: first, the thigh securing plate 11 is secured to the thigh of the patient by the thigh securing straps 12. Meanwhile, the lower leg fixing plate is fixed at the lower leg part of the patient by the lower leg fixing band. Thereby, the knee of the patient is positioned inside the outer shell 21 of the joint correction part 2. If the patient is an X-shaped foot, the patient can control the first micro air pump 24 to operate, so that the air in the outer knee pressure airbag 22 can flow in one direction towards the inner knee pressure airbag 23 through the first check valve 26. Causing the outer knee pressure bladder 22 to collapse and the inner knee pressure bladder 23 to expand. The knee of the patient is pressed by the inner knee pressure air bag 23 in the outer shell 21 and is corrected by the force towards the outside; if the patient is an O-shaped foot, the second micro air pump 25 is controlled to work at this time, so that the air in the inner knee pressure air bag 23 flows in one direction towards the outer knee pressure air bag 22 through the second one-way valve 27. Causing the inner knee pressure bladder 23 to collapse and the outer knee pressure bladder 22 to expand. The knee of the patient is forced by the outer knee pressure airbag 22 in the outer shell 21 and is corrected by force toward the inner side. Therefore, the stress direction of the knee of the patient can be flexibly changed according to the specific symptoms of the patient, and the technical effect of realizing different correction stresses for different patients by using the same product is achieved.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.

Claims

1. A knee orthosis, comprising: comprises a thigh fixing part (1), a joint correcting part (2), a shank fixing part (3) and a control panel (4);

the thigh fixing part (1) comprises a thigh fixing plate (11) and a thigh fixing band (12), and the thigh fixing band (12) is connected with the thigh fixing plate (11) and used for fixing the human body thigh on the thigh fixing plate (11);

the shank fixing part (3) comprises a shank fixing plate (31) and a shank fixing strap (32), and the shank fixing strap (32) is connected with the shank fixing plate (31) and is used for fixing the shank of a human body on the shank fixing plate (31);

the joint correcting part (2) comprises an outer shell (21), an outer knee pressure air bag (22), an inner knee pressure air bag (23), a first micro air pump (24), a second micro air pump (25), a first one-way valve (26), a second one-way valve (27), a first air duct (28) and a second air duct (29);

the outer shell (21) is communicated up and down, two symmetrical left and right chambers are arranged on the inner side of the outer shell, and the outer knee pressure air bag (22) and the inner knee pressure air bag (23) are respectively arranged in the left and right chambers on the inner side of the outer shell (21);

both ends of the first air duct (28) and the second air duct (29) respectively extend into the left and right chambers at the inner side of the outer shell (21) from the outer side of the outer shell (21) and are respectively connected with the outer knee pressure air bag (22) and the inner knee pressure air bag (23); the first miniature air pump (24) and the first one-way valve (26) are sequentially arranged on the first air duct (28), and the second miniature air pump (25) and the second one-way valve (27) are sequentially arranged on the second air duct (29); the first micro air pump (24) and the second micro air pump (25) are arranged on the control plate (4);

the first one-way valve (26) realizes the one-way conduction of the outer knee pressure air bag (22) to the inner knee pressure air bag (23); the second one-way valve (27) realizes the one-way conduction of the inner knee pressure air bag (23) to the outer knee pressure air bag (22);

the thigh fixing plate (11) and the shank fixing plate (31) are respectively connected with the upper end and the lower end of the outer shell (21) through rotating shafts (5) in a shaft mode.

2. The knee orthosis of claim 1, wherein: the thigh fixing plate and the shank fixing plate are arc plates.

3. The knee orthosis of claim 2, wherein: and soft EVA layers are arranged on the inner walls of the thigh fixing plate (11) and the shank fixing plate (31).

4. The knee orthosis of claim 3, wherein: the thigh fixing belt (12) and the shank fixing belt (32) adopt magic tapes or elastic belts.