CN109172280B - Pneumatic traction therapeutic device for knee or elbow joint - Google Patents
Pneumatic traction therapeutic device for knee or elbow joint Download PDFInfo
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- CN109172280B CN109172280B CN201811203522.6A CN201811203522A CN109172280B CN 109172280 B CN109172280 B CN 109172280B CN 201811203522 A CN201811203522 A CN 201811203522A CN 109172280 B CN109172280 B CN 109172280B
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- 210000002310 elbow joint Anatomy 0.000 title claims abstract description 25
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 23
- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 23
- 210000003414 extremity Anatomy 0.000 claims abstract description 145
- 230000003068 static effect Effects 0.000 claims description 15
- 210000003127 knee Anatomy 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims 1
- 206010023230 Joint stiffness Diseases 0.000 abstract description 7
- 201000010099 disease Diseases 0.000 abstract description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000002414 leg Anatomy 0.000 description 3
- 210000000689 upper leg Anatomy 0.000 description 3
- 208000036487 Arthropathies Diseases 0.000 description 2
- 206010060820 Joint injury Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000004064 dysfunction Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 230000001632 homeopathic effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
- A61H1/024—Knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
- A61H1/0277—Elbow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/14—Special force transmission means, i.e. between the driving means and the interface with the user
- A61H2201/1409—Hydraulic or pneumatic means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/1635—Hand or arm, e.g. handle
- A61H2201/1638—Holding means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/164—Feet or leg, e.g. pedal
- A61H2201/1642—Holding means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
- A61H2201/5061—Force sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/06—Arms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
- A61H2205/102—Knee
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a knee or elbow joint pneumatic traction therapeutic device, which belongs to the technical field of medical equipment and comprises a closed limb segment fixing part, an open limb segment supporting part and a connecting part for connecting the closed limb segment fixing part and the open limb segment supporting part, wherein the connecting part comprises an open limb segment pushing rod, one end of the open limb segment pushing rod is connected with the open limb segment supporting part, the other end of the open limb segment pushing rod is rotatably connected with the closed limb segment fixing part and is provided with a first locking mechanism, an air bag is arranged on a supporting surface of the open limb segment supporting part, and the air bag is communicated with an inflation control mechanism. The hollow air bag far away from the stress point is adopted, the joint stiffness and the joint limitation diseases are treated in the softest and most effective way by the air pressure technology of air bag expansion, the rehabilitation pain of a patient is reduced, and the joint of the patient is quickly recovered.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a knee or elbow joint pneumatic traction therapeutic device.
Background
After trauma or surgery, the knee or elbow joint needs to be fixed to limit the movement of the joint for a period of time in order to enable the bone to be connected, so that the rapid repair of soft tissues is facilitated. Various tendon contractures and muscle adhesions occur during the repair process, and thus, the patient may develop various degrees of knee or elbow dysfunction after removal of the knee or elbow fixation device, which is clinically very common. Knee or elbow joint dysfunction, particularly knee or elbow joint flexion and extension dysfunction, can greatly affect the daily life of a patient, and it is therefore also important that rehabilitation training be necessary for the patient's knee or elbow joint. At present, manual pulling, loosening and weight lifting are mostly adopted for treating knee or elbow joint dysfunction. However, the above-mentioned treatment methods are not obvious in treatment effect due to short duration or lack of standardization and the like.
The traditional treatment method for joint rehabilitation comprises manual forced traction and compression, a hinge is arranged between two clamping plates to manually force the joint, and the treatment methods such as heavy lifting by limited joints, joint relaxation operation and the like are used, so that the treatment method has no precision, no standard and extremely large risk coefficient and is likely to cause secondary injury.
Disclosure of Invention
The invention aims to solve the technical problem of providing a knee or elbow joint pneumatic traction therapeutic device, which adopts a hollow air bag design far away from a stress point, treats joint stiffness and joint limitation diseases in a softest and most effective way by an air pressure technology of air bag expansion, reduces the rehabilitation pain of a patient, and enables the joint of the patient to be quickly rehabilitated.
In order to solve the problems, the technical scheme adopted by the invention is to provide a knee or elbow joint pneumatic traction therapeutic device, which comprises a closed limb segment fixing part, an open limb segment supporting part and a connecting part for connecting the closed limb segment fixing part and the open limb segment supporting part, wherein the connecting part comprises an open limb segment pushing rod, one end of the open limb segment pushing rod is connected with the open limb segment supporting part, the other end of the open limb segment pushing rod is rotatably connected with the closed limb segment fixing part and is provided with a first locking mechanism, an air bag is arranged on a supporting surface of the open limb segment supporting part, and the air bag is communicated with an inflation control mechanism.
Preferably, the fixing part of the closed limb segment comprises an arc-shaped closed limb segment fixing base matched with the shape of the closed limb segment of a human body, and a binding band or a fixing cover matched with the closed limb segment fixing base to lock the closed limb segment, and the position of the closed limb segment fixing base is adjustable or fixed.
Preferably, the open limb segment supporting part comprises an arc-shaped open limb segment support matched with the shape of the open limb segment of the human body, the air bag is arranged on a supporting surface of the open limb segment support, and the open limb segment support is slidably connected with the open limb segment pushing rod through a pin shaft inserted into a long slot hole of the open limb segment pushing rod and is provided with a second locking mechanism.
Preferably, the telescopic rod is arranged below the closed limb segment fixing base, the telescopic rod comprises an inner rod and an outer rod capable of moving along the length direction of the inner rod, the closed limb segment fixing base is slidably connected with the outer rod and is provided with a third locking mechanism, and the open limb segment pushing rod is rotationally connected with the end part of the inner rod.
Preferably, the open limb segment propulsion rod is a double rod or a single rod.
Preferably, the first locking mechanism comprises a static fluted disc fixedly arranged on the fixed part of the closed limb segment and a movable fluted disc fixedly arranged on the pushing rod of the open limb segment, the static fluted disc and the movable fluted disc are mutually aligned and penetrate through a central shaft, the static fluted disc is fixedly connected with the central shaft, the movable fluted disc is in sliding connection with the central shaft, and an indexing control lock for pushing the movable fluted disc to be meshed with or separated from the static fluted disc is further arranged at the end part of the central shaft.
Preferably, the air bag consists of three separate air bags which are arranged in a row and are communicated with each other.
Preferably, the inflation control mechanism is a manual air bag with an air supply pipe or an electric air supply mechanism.
Preferably, the electric air supply mechanism comprises a miniature air pump, an air pipe connected with the miniature air pump and the air bag, a pressure sensor for detecting the pressure in the air pipe, a deflation valve communicated with the air pipe and a pressure adjusting knob for adjusting the opening degree of the deflation valve, wherein the miniature air pump is controlled by the main controller, and a signal output end of the pressure sensor is connected with a signal input end of the main controller.
Preferably, the air supply pipe of the manual air supply bag is also provided with a check valve and a pressure relief valve.
The invention has the beneficial effects that: the problems of joint limitation and joint stiffness caused after joint injury and joint movement incapable of self-care are effectively solved, the hollow design far away from the stress points is adopted, the joint stiffness and joint limitation diseases are treated in the softest and most effective way through the air pressure technology, the rehabilitation pain of a patient is reduced, and the joint of the patient is quickly recovered.
Drawings
FIG. 1 is a schematic view of a dual rod therapeutic apparatus with a manual air bag for elbow joints according to an embodiment of the present invention;
FIG. 2 is a schematic view of a dual rod therapeutic apparatus with an electric air delivery mechanism for elbow joints according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an electric air supply mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of a single rod therapeutic apparatus with a manual air bag for elbow joints according to an embodiment of the present invention;
FIG. 5 is a schematic view of a single rod therapeutic apparatus with an electric air delivery mechanism for elbow joints according to an embodiment of the present invention;
FIG. 6 is a schematic view of an airbag structure connected with a manual airbag according to an embodiment of the present invention;
FIG. 7 is a schematic view of the structure of FIG. 6 in a semi-inflated state;
FIG. 8 is a schematic view of the structure of FIG. 6 in a fully inflated state;
FIG. 9 is a schematic view of the structure of the stationary and movable toothed plates in engagement;
FIG. 10 is a schematic view of the structure of the stationary and movable toothed plates in a separated state;
FIG. 11 is a schematic view of a single rod therapeutic apparatus with a manual air bag and an electric air supply mechanism for knee joint according to an embodiment of the present invention;
fig. 12 is a schematic view of a dual-rod therapeutic apparatus with a manual air bag and an electric air supply mechanism for knee joint according to an embodiment of the present invention.
Wherein, each reference sign in the figure:
1. the device comprises an open limb segment propelling rod, 2, an air bag, 3, a closed limb segment fixing base, 4, a binding belt, 5, a fixing cover, 6, an open limb segment protecting support, 7, a pin roll, 8, a static fluted disc, 9, a dynamic fluted disc, 10, a central shaft, 11, an indexing control lock, 12, a manual air conveying bag, 13, a micro air pump, 14, an air pipe, 15, a pressure sensor, 16, a deflation valve, 17, a pressure adjusting knob, 18, a main controller, 19, a telescopic rod, 20, an electric air conveying mechanism, 21 and an additional plate.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention is described in further detail below with reference to the attached drawings and to specific examples:
referring to fig. 1, 2, 4, 5, 11 and 12, an embodiment of the present invention provides a pneumatic traction therapeutic apparatus for knee or elbow joint, which includes a closed limb segment fixing portion, an open limb segment supporting portion, and a connecting portion connecting the closed limb segment fixing portion and the open limb segment supporting portion, wherein the connecting portion includes an open limb segment pushing rod 1, one end of the open limb segment pushing rod 1 is connected with the open limb segment supporting portion, the other end is rotatably connected with the closed limb segment fixing portion and provided with a first locking mechanism, an air bag 2 is arranged on a supporting surface of the open limb segment supporting portion, and the air bag 2 is communicated with an inflation control mechanism.
The therapeutic device is aimed at knee or elbow joint, so that it can be used in knee and elbow, when it is used in knee joint, the closed limb segment is human thigh, the open limb segment is human calf, and when it is used in elbow joint, the closed limb segment is human big arm, and the open limb segment is human forearm.
In this embodiment, the closed limb segment of the arm or leg of the human body is located at the fixed part of the closed limb segment, the open limb segment extends to the supporting part of the open limb segment in a homeopathic manner, the open limb segment is contacted with the air bag 2 located on the supporting part of the open limb segment, at this time, the closed limb segment is fixed, then the supporting part of the open limb segment rotates relative to the fixed part of the closed limb segment under the driving of the pushing rod 1 of the open limb segment, the open limb segment of the human body bends, when the open limb segment rotates to the knee or elbow joint to have pain, the pushing rod 1 of the open limb segment and the fixed part of the closed limb segment are fixed relatively through the first locking mechanism, then the air bag 2 is inflated gradually through the inflation control mechanism, the gradually inflated air bag 2 gradually pushes the open limb segment of the human body to move continuously, namely, the knee or elbow joint continues bending to a certain extent, the inflated state is kept for fifteen minutes, then gas is released, joint pressure is relieved, after the air bag 2 is inflated again after three to five minutes to rest, the air bag is inflated again after fifteen minutes, and a group of training is completed. In this embodiment, the inflatable contact point is far away from the stress point of knee or elbow joint movement, and the joint stiffness and joint limitation diseases are treated in the softest and most effective way by the air pressure technology, so that the rehabilitation pain of the patient is reduced, and the joint of the patient is quickly rehabilitated.
Further, referring to fig. 1, 2, 4, 5, 11 and 12, the present embodiment further provides a preferred embodiment of the fixing portion of the closed limb segment, specifically, the fixing portion of the closed limb segment includes an arc-shaped fixing base 3 of the closed limb segment adapted to the shape of the closed limb segment of the human body, and a strap 4 or a fixing cover 5 matched with the fixing base 3 of the closed limb segment to lock the closed limb segment, where the position of the fixing base 3 of the closed limb segment is adjustable or fixed. The shape of the closed limb segment fixing base 3 is matched with that of the closed limb segment of a human body, so that the closed limb segment is comfortable, and the closed limb segment is bound from the upper part by adopting the binding belt 4 or the fixing cover 5, so that a good fixing effect is achieved. The position of the closed limb segment fixing base 3 of the trainer in fig. 1, 2 and 12 is not adjustable, and the closed limb segment fixing base 3 in fig. 12 is fixedly arranged on an additional plate 21 for supporting the weight of thighs, the additional plate 21 is used for being convenient for a lying person, when lying on the side, the additional plate 21 is used for supporting the weight of thighs, and fig. 11 without the additional plate 21 is suitable for sitting on a human body.
Further, referring to fig. 1, 2, 4, 5, 11 and 12, the open limb support portion includes an arc-shaped open limb support 6 adapted to the shape of the open limb of the human body, the air bag 2 is disposed on a support surface of the open limb support 6, and the open limb support 6 is slidably connected with the open limb propulsion rod 1 through a pin shaft 7 inserted into a slot hole of the open limb propulsion rod 1 and is provided with a second locking mechanism. In the embodiment, the support part of the open limb segment is matched with the open limb segment of the human body, and the air bag 2 is arranged on the surface of the support 6 of the open limb segment, so that the open limb segment can be inflated and pushed.
In order to enable the position of the open limb segment support 6 to be adjustable, the arm or leg of a person is different in length, the position of the open limb segment support 6 is adjustable, so that the person with arms or legs of different lengths can push the support at the optimal position, the pin shaft 7 is in sliding connection with the long slot hole, the pin shaft 7 is fixed relatively and stationary relative to the long slot hole by the second locking mechanism, the second locking mechanism is a nut, threads are arranged on the pin shaft 7, the two are matched, the fixing is achieved after the nut is screwed on the threads, the second locking mechanism is not limited to the mode, and any implementation mode which can be considered by a person skilled in the art is within the scope of protection of the embodiment.
Further, as shown in fig. 4, 5 and 11, a telescopic rod 19 is arranged under the closed limb segment fixing base 3, the telescopic rod 19 comprises an inner rod and an outer rod capable of moving along the length direction of the inner rod, the closed limb segment fixing base 3 is slidably connected with the outer rod and is provided with a third locking mechanism, and the open limb segment pushing rod 1 is rotatably connected with the end part of the inner rod. In order to achieve the position adjustment of the closed limb segment fixing base 3, the telescopic rod 19 is first composed of an inner rod and an outer rod, the inner rod and the outer rod are slidably connected, the closed limb segment fixing base 3 is located on the outer rod, the position adjustment of the closed limb segment fixing base 3 can be achieved through the sliding of the outer rod relative to the inner rod, in addition, the closed limb segment fixing base 3 and the outer rod can be achieved through sliding connection, specifically, the closed limb segment fixing base 3 and the outer rod can also be achieved through the matching mode of a long slot hole and a pin shaft, the closed limb segment fixing base is relatively fixed by means of a third locking mechanism, the third locking mechanism can be in the mode of nut locking, and the closed limb segment fixing base is not limited to the mode, and any implementation mode which can be considered by a person skilled in the art is within the scope of the protection of the embodiment.
Further, the present embodiment shown in fig. 1, 2, 4, 5, 11, 12 provides two embodiments of the open limb segment propulsion rod 1, two rods and a single rod, respectively, which can be used.
Further, referring to fig. 9 and 10, the present embodiment further provides a preferred implementation manner of the first locking mechanism, specifically, the first locking mechanism includes a static fluted disc 8 fixed on the fixed portion of the closed limb segment, and a movable fluted disc 9 fixed on the pushing rod 1 of the open limb segment, the static fluted disc 8 and the movable fluted disc 9 are aligned with each other and are penetrated with a central shaft 10, the static fluted disc 8 is fixedly connected with the central shaft 10, the movable fluted disc 9 is slidably connected with the central shaft 10, and an indexing control lock 11 for pushing the movable fluted disc 9 to engage with or separate from the static fluted disc 8 is further provided at the end of the central shaft 10.
In this embodiment, when the movable fluted disc 9 is not meshed with the static fluted disc 8, the movable fluted disc 9 can rotate and slide on the central shaft 10, the rotation drives the open limb segment pushing rod 1 to rotate to achieve the effect of bending the open limb segment, after the open limb segment reaches the standard after rotating for a certain angle, the indexing control lock 11 is operated to push the movable fluted disc 9 to move to the extent meshed with the static fluted disc 8, the movable fluted disc 9 is fixed, the open limb segment pushing rod 1 is still not moved, otherwise, the rotating control lock 11 is operated again to release the pushing of the movable fluted disc 9, the movable fluted disc 9 is released, the open limb segment pushing rod 1 can continue to rotate, the indexing control lock 11 is positioned at the end of the central shaft 10 and is in rotary connection with the central shaft 10, the protruding part of the open limb segment pushing rod can push the movable fluted disc 9 when rotating to a certain position, and the protruding part releases the pushing action of the movable fluted disc 9 when rotating back, and the action of blocking the movable fluted disc 9 from falling off from the central shaft 10.
Further, referring to fig. 6, 7 and 8, the present embodiment provides a preferred embodiment of the air bag 2, specifically, the air bag 2 is composed of three separate bags which are arranged in a row and are communicated with each other. The adoption of the mode that three split capsules are mutually overlapped greatly increases the receivable air quantity, so that the expansion volume is increased, and the pushing force and the pushing range of the open limb segment of a person are further increased.
Further, regarding how to inflate the airbag 2, the present embodiment provides that the inflation control mechanism is a manual airbag 12 with an air duct or an electric air supply mechanism 20. The quantitative inflation of the airbag 2 can be achieved. The manual air-feeding bag 12 is connected with the air-feeding bag 2 through an air-feeding pipe, and a check valve is arranged on the air-feeding pipe to prevent air flow from flowing back and a pressure relief valve to prevent the pressure from being overlarge.
Further, referring to fig. 3, the embodiment further provides a preferred embodiment of the electric air supply mechanism 20, specifically, the electric air supply mechanism 20 includes a micro air pump 13, an air pipe 14 connecting the micro air pump 13 and the air bag 2, a pressure sensor 15 detecting the pressure in the air pipe 14, a deflation valve 16 communicating with the air pipe 14, and a pressure adjusting knob 17 adjusting the opening of the deflation valve 16, wherein the micro air pump 13 is controlled by a main controller 18, and a signal output end of the pressure sensor 15 is connected with a signal input end of the main controller 18. In fig. 11 and 12, a parallel design of the manual air bag 12 and the electric air supply mechanism 20 is adopted, and one of them may be selected for use, or one of them may be selected for use directly without adopting a parallel design.
In this embodiment, the main controller 18 sets an inflation pressure value in advance according to the movement of the knee or elbow joint of the patient, that is, the inflation value of the air bag 2, and the micro air pump 13 is controlled to inflate, and when the inflation value reaches a set value, the inflation is stopped, or the inflation amount can be controlled according to the pressure value of the pressure sensor 15, and the general patient has a quantitative and general inflation value, and when the pressure sensor 15 obtains the inflation value by detecting the pressure, a signal is transmitted to the main controller 18, and the inflation is stopped, and in addition, a deflation valve 16 is provided, and if the inflation is too large, the patient is hard to feel pain, and the pressure adjusting knob 17 is turned to perform the deflation operation.
The invention has the beneficial effects that the problems of joint limitation, joint stiffness and joint movement which are caused after joint injury and can not be self-care are effectively solved, the hollow air bag type ejection design far away from the stress point is adopted, the joint stiffness and joint limitation diseases are treated in the softest and most effective way through the air pressure technology, the rehabilitation pain of a patient is reduced, and the joint of the patient is quickly recovered.
Claims (9)
1. The pneumatic traction therapeutic device for the knee joint or the elbow joint is characterized in that: the device comprises a closed limb segment fixing part, an open limb segment supporting part, and a connecting part for connecting the closed limb segment fixing part and the open limb segment supporting part, wherein the connecting part comprises an open limb segment pushing rod, one end of the open limb segment pushing rod is connected with the open limb segment supporting part, the other end of the open limb segment pushing rod is rotationally connected with the closed limb segment fixing part and is provided with a first locking mechanism, the first locking mechanism comprises a static fluted disc fixedly arranged on the closed limb segment fixing part and a movable fluted disc fixedly arranged on the open limb segment pushing rod, the static fluted disc and the movable fluted disc are mutually aligned and are provided with a central shaft in a penetrating way, the static fluted disc is fixedly connected with the central shaft, the movable fluted disc is in sliding connection with the central shaft, and the end part of the central shaft is also provided with an indexing control lock for pushing the movable fluted disc to be meshed with or separated from the static fluted disc; the supporting surface of the supporting part of the open limb segment is provided with an air bag which is communicated with an inflation control mechanism.
2. The knee or elbow pneumatic traction therapeutic device according to claim 1, wherein: the closed limb segment fixing part comprises an arc-shaped closed limb segment fixing base matched with the shape of the closed limb segment of a human body, and a binding belt or a fixing cover matched with the closed limb segment fixing base to lock the closed limb segment, and the position of the closed limb segment fixing base is adjustable or fixed.
3. The knee or elbow pneumatic traction therapeutic device according to claim 1, wherein: the open limb segment supporting part comprises an arc-shaped open limb segment support matched with the shape of the open limb segment of a human body, the air bag is arranged on a supporting surface of the open limb segment support, and the open limb segment support is slidably connected with the open limb segment pushing rod through a pin shaft inserted into a long slot hole of the open limb segment pushing rod and is provided with a second locking mechanism.
4. The knee or elbow pneumatic traction therapeutic device according to claim 2, wherein: the telescopic rod is arranged below the closed limb segment fixing base and comprises an inner rod and an outer rod capable of moving along the length direction of the inner rod, the closed limb segment fixing base is slidably connected with the outer rod and is provided with a third locking mechanism, and the open limb segment pushing rod is rotationally connected with the end part of the inner rod.
5. The knee or elbow pneumatic traction therapeutic device according to claim 1, wherein: the pushing rod of the open limb segment is a double rod or a single rod.
6. The pneumatic traction therapeutic device for knee or elbow joint according to any one of claims 1-5, wherein: the air bag consists of three mutually communicated split air bags which are arranged in a row.
7. The pneumatic traction therapeutic device for knee or elbow joint according to any one of claims 1-5, wherein: the inflation control mechanism is a manual air bag with an air supply pipe or an electric air supply mechanism.
8. The knee or elbow pneumatic traction therapeutic device according to claim 7, wherein: the electric air supply mechanism comprises a miniature air pump, an air pipe connected with the miniature air pump and the air bag, a pressure sensor for detecting the pressure in the air pipe, a deflation valve communicated with the air pipe and a pressure adjusting knob for adjusting the opening of the deflation valve, wherein the miniature air pump is controlled by the main controller, and a signal output end of the pressure sensor is connected with a signal input end of the main controller.
9. The knee or elbow pneumatic traction therapeutic device according to claim 7, wherein: the air supply pipe of the manual air supply bag is also provided with a check valve and a pressure relief valve.
Priority Applications (1)
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| CN109745671B (en) * | 2019-02-21 | 2023-12-01 | 山东中医药大学 | Device for assisting active rehabilitation of elbow joint fracture |
| CN110384600A (en) * | 2019-07-23 | 2019-10-29 | 邬剑娜 | A kind of ancon rehabilitation training rehabilitation mechanism |
| CN111973845A (en) * | 2020-06-05 | 2020-11-24 | 哈工大机器人(中山)无人装备与人工智能研究院 | Arm fixing device |
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