Dynamic arm support for rehabilitation therapy
Technical Field
The invention relates to an arm support, in particular to a dynamic arm support for rehabilitation therapy, and belongs to the technical field of medical appliances.
Background
With the arrival of aging, the incidence of apoplexy is wide, the disability rate is high, and most sequelae such as hemiplegia, language disorder, limb pain and the like can remain after treatment. Among them, hemiplegia is the most. In the recovery of hemiplegia, the recovery of hand function is the most difficult, and the finger of the patient forms a buckled semi-fist-making gesture due to muscle spasm, which brings serious difficulty to the life of the patient. In the process of hand function rehabilitation training, if the arms of a patient are muscle weakness and cannot maintain normal body postures or the patient can lift the arms and needs rest in a short time, effective treatment cannot be carried out, the conventional arm support is simply supported, the gravity applied to the arms during training cannot be balanced and adjusted, because the arms of the patient cannot be sprung to carry out self-adjustment, various uncontrollable free swinging easily occurs if the arms of the patient cannot be well balanced and stressed during training, the ill arms of hemiplegia patients feel like a lead-block-falling sensation to the patient, the arms of the patient have great falling sensation during training, larger inertia is easily generated, various uncontrollable swinging easily causes unpredictable dumping injury to the patient, or other surrounding objects are damaged by touching, physical strength is seriously consumed during training, the user is easy to feel tired, the training effect is poor, the angle direction is difficult to adjust, and the use is not flexible.
Disclosure of Invention
The invention aims to overcome the problems of the prior arm support in rehabilitation training and provide a dynamic arm support for rehabilitation therapy.
In order to achieve the purpose of the invention, the following technical scheme is adopted: the dynamic arm support for rehabilitation therapy comprises a fixing frame, a fixing shaft is arranged on the fixing frame, a connecting rod is rotationally connected to the fixing shaft in the horizontal direction, the other end of the connecting rod is rotationally connected to one end of the connecting plate in the horizontal direction, the bottom end of an arc-shaped arm with a flat base is rotationally connected to the other end of the connecting plate in the horizontal direction, the upper end of the arc-shaped arm faces forward, an upper arm is hinged to the upper end of the arc-shaped arm through a pin shaft, a long slot is formed in the front and back of the arc-shaped arm, the front face of the arc-shaped arm refers to the concave arc face of the arc-shaped arm, the back face refers to the convex arc face of the arc-shaped arm, the upper end of a gas spring is hinged to the front end of the upper arm, the lower end of the gas spring is positioned in the front of the arc-shaped arm, an adjusting ring penetrates through the long slot from the back face of the arc-shaped arm to be connected to the lower end of the gas spring, the adjusting ring comprises a pull ring and a pull rod, the pull rod penetrates through the long slot to be connected to the lower end of the gas spring, and the pull ring is limited on the back surface of the arc-shaped arm, the back surface of the arc arm is provided with a plurality of positioning grooves in the horizontal direction, the position of the positioning needle near the pull ring is provided with a positioning needle, when the positioning needle is positioned in the positioning groove, the positioning needle is locked at the lower end part of the air spring, the pull ring is pulled to enable the positioning needle to come out of the positioning groove, then the pull rod can move up and down in a long seam so that the positioning needle can be positioned in different positioning grooves behind the arc arm, the back end of the upper arm is connected with a universal joint, one side of the arm support is connected with the universal joint, the lower part of the arm support is connected with a fixing frame through a hook, further, the fixing frame is a vice type fixing frame, the fixing shaft is arranged on the upper surface of the vice type fixing frame, the other end of the fixing hook is bent for 120 degrees, the other end of the fixing hook is spherical, the lower part of the elbow support is connected with a hanging ring, the link articulates on the fixed hook, and is further, between connecting rod and the fixed axle, between connecting rod and the connecting plate, the rotation connection between the bottom of arc arm and the connecting plate all adopts axle and bearing to rotate to be connected, and is further, the articulated department of upper arm and the upper end of arc arm is located the first half of upper arm, and is further, the upper end of arc arm for beginning to have the U-shaped mouth, the upper arm is located the U-shaped mouth, and is further, the pull rod tip of adjusting ring is provided with the hole, and the lower extreme of air spring is provided with the hook, and the hook of air spring lower extreme is located the hole of pull rod tip, and is further, the arm support hold in the palm by the elbow to hold in the palm and the arm holds in the palm to constitute, one side upper portion rotation connection of elbow support is on the universal joint, the arm holds in the palm the front end with the elbow and holds in the palm as an organic whole structure, the arm holds in the both sides unsettled or one side of arm support is connected on the upper arm.
The invention has the positive and beneficial technical effects that: this developments arm support and hand function therapeutic instrument cooperation use, can make the patient arm can multi-joint, diversified rehabilitation training when the treatment, the arm is put and is held in the palm back degree of freedom in arm support and is many, and the elasticity size through pull ring regulation air spring can make the patient receive the gravity when training and obtain effective balance, lightens tired sense when patient trains, helps the patient to accomplish multi-functional exercise, and this developments support simple structure, convenient to use, fixed firm can effectually help patient to treat, is a section of more ideal medical instrument device.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic diagram of the connection of part of the components of the present invention.
Fig. 3 is a schematic view of one side of the arcuate arm slot.
Description of the embodiments
In order to more fully explain the practice of the invention, examples of the practice of the invention are provided. These examples are merely illustrative of the present invention and do not limit the scope of the invention.
The invention will be explained in further detail with reference to the accompanying drawings, in which: 1: bench clamp type fixing frame; 2: fixing a knob; 3: a fixed shaft; 4: a connecting rod; 5: a connecting plate; 6: a flat base; 7: an upper arm; 8: a pin shaft; 9: a gas spring; 10: an adjusting ring; 11: an elbow rest; 12: hanging rings; 13: a fixed hook; 14: a universal joint; 15: an arm support; 16: an arc arm; 17: a positioning groove; 18: the front of the arc arm; 19: the rear of the arc arm; 20: a pull rod; 21: a hook; 22: a hole; 23: a long seam; 24: a pull ring; 24: positioning needle. The direction in the present invention is defined as: with reference to fig. 1, the bench clamp is at the rear and the arc arm is at the front. As shown in the drawing, the dynamic arm support for rehabilitation therapy comprises a fixing frame, wherein the fixing frame is a vice type fixing frame, as shown in the drawing, 1 is a vice type fixing frame; 2 is a fixed knob, the fixing frame adopting the above form can be fixed on any table top, the fixing frame is provided with a fixing shaft 3, the fixing shaft 3 is arranged on the upper surface of the bench clamp type fixing frame 1, the fixing shaft 3 is horizontally rotationally connected with a connecting rod 4, the other end of the connecting rod 4 is horizontally rotationally connected with one end of a connecting plate 5, the bottom end of an arc arm 16 with a flat bottom seat 6 is horizontally rotationally connected with the other end of the connecting plate 5, the rotational connections between the connecting rod 4 and the fixing shaft 3, between the connecting rod 4 and the connecting plate 5 and between the bottom end of the arc arm and the connecting plate 5 are all rotationally connected by adopting a shaft and a bearing, the upper end of the arc arm 16 faces forward, an upper arm 7 is hinged at the upper end of the arc arm 16 through a pin shaft 8, the upper end of the arc arm is provided with a U-shaped opening, the upper arm is positioned in the U-shaped opening, the U-shaped opening is not shown in the figure, the hinge joint of the upper arm and the upper end of the arc arm is positioned at the front half part of the upper arm, a long slot 23 is formed at the front and rear of the arc arm 16, the front part of the arc arm refers to the concave arc surface of the arc arm, the rear part refers to the convex arc surface of the arc arm, 18 is the front part of the arc arm, 19 is the rear part of the arc arm, the upper end of the gas spring 9 is hinged at the front end part of the upper arm 7, the lower end of the gas spring 9 is positioned at the front part of the arc arm 16, the adjusting ring 10 is connected at the lower end of the gas spring from the rear part of the arc arm through the long slot 23, the adjusting ring 10 comprises a pull ring 24 and a pull rod 20, the pull rod 20 is connected at the lower end part of the gas spring through the long slot, the pull ring 24 is limited on the rear surface of the arc arm, the end part of the pull rod 20 of the adjusting ring 10 is provided with a hole 22, the lower end part of the gas spring is provided with a hook 21, the hook of the lower end part of the gas spring is positioned in the hole of the pull rod end part, a plurality of positioning grooves in the horizontal direction are formed in the rear surface of the arc-shaped arm 16, a positioning groove is shown at 17, a positioning needle 25 is arranged on the adjusting ring 10 near the pull ring, the lower end part of the air spring is locked when the positioning needle 25 is positioned in the positioning groove, the pull ring 24 is pulled to enable the pull rod to move up and down in a long slot after the positioning needle 25 comes out of the positioning groove so that the positioning needle can be positioned in different positioning grooves behind the arc-shaped arm, the rear end of the upper arm 7 is connected with a universal joint 14, one side of an arm support is connected with the universal joint 14, the lower part of the arm support is connected with a fixing frame through a hook, the arm support consists of an elbow support 11 and an arm support 15, the upper part of one side of the elbow support 11 is rotationally connected with the universal joint 14, the arm holds in the palm 15 is located the elbow rest 11 front end, arm holds in the palm 15 and elbow rest 11 structure as an organic whole, arm holds in the palm 15 both sides unsettled or arm holds in the palm one side and connects on the upper arm, in the practical in-service use, the arm holds in the palm and adopts rigid plastic to make, the arm holds in the palm can be unsettled completely, can obtain better degree of freedom in the training like this, the arm holds in the palm unsettled in the figure not showing, still be provided with the fixed hook 13 of one end with its upper surface vertically at bench clamp formula mount 1, the other end of fixed hook is crooked 120 degrees, the other end of fixed hook is globular, be connected with link 12 in the elbow rest lower part, link 12 articulates on fixed hook 13, the fixed hook is as shown in fig. 1. When the arm support device is used, the forearm and the elbow of a patient are fixed in the arm support by using the binding belt, the tension spring is pulled to adjust the tension of the air spring, and the force output by the air spring section and the gravity born by the arm of the patient are balanced through the upper arm and then are matched with the hand function rehabilitation instrument for training, so that a good effect can be achieved.
Having described embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the scope and spirit of the invention as defined in the appended claims, and any simple, equivalent changes and modifications to the above examples are intended to be within the scope of the present invention and the invention is not limited to the embodiments as set forth in the specification.