CN212662049U - Fixing and protecting orthosis for knee joints of children - Google Patents

Abstract

The utility model relates to a children knee joint fixation protection orthotic device, it includes thigh hoop, and thigh hoop lower part has shank hoop, is equipped with the articulated subassembly of connecting thigh hoop and shank hoop between thigh hoop and the shank hoop to and be used for assisting helping of knee joint extension and stretch the spring, help the both ends of stretching the spring respectively with thigh hoop and shank hoop fixed connection. The utility model discloses a thigh hoop is articulated through articulated subassembly with shank hoop, the bending of knee joint makes thigh hoop rotate around shank hoop, help this moment to stretch the spring is tensile, help to stretch the spring axis and make thigh hoop and shank hoop keep crooked state behind articulated subassembly's the axis of rotation, straighten the axis that makes the help to stretch the spring when the patient with the shank and rotate away from articulated subassembly's axis of rotation, help the pulling force effect that stretches the spring and make thigh hoop rotate around shank hoop and to the state of straightening, thereby the straightening of patient's shank has been assisted, the effect that alleviates patient's knee joint load has.

Description

Fixing and protecting orthosis for knee joints of children

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a children knee joint is fixed and is protected orthopedic ware is related to.

Background

The knee joint is an important joint for ensuring the normal standing, walking and various activities of the human body, so various injuries related to the knee joint bring various inconveniences and even dyskinesias to the life and work of a patient; in order to cure and repair the damage of the knee joint, especially in the rehabilitation exercise stage of the knee joint operation, the knee joint needs to perform bending and straightening activities to promote the blood circulation and metabolism of the lower limb, thereby facilitating the postoperative rehabilitation of the knee joint.

At present, chinese patent publication No. CN109481116A discloses a knee joint orthosis, which includes a first flexible member, a first telescopic member, a second flexible member, and a second telescopic member, wherein one end of the first telescopic member is connected to the first flexible member, one end of the second telescopic member is connected to the second flexible member, and one end of the first telescopic member, which is far away from the first flexible member, is hinged to one end of the second telescopic member, which is far away from the second flexible member. When the orthopedic device is used by a patient, the hinged position of the first telescopic part and the second telescopic part is positioned at the knee joint of the patient, so that the bending and straightening activities of the knee joint are realized.

The above prior art solutions have the following drawbacks: because patient's knee joint is in the recovery phase, it has the not enough problem of shank strength when recovering to take exercise, if do not have the supplementary of external force, the patient need straighten the shank by oneself to the load of knee joint has been increased.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, one of the purposes of the utility model is to provide a children's knee joint is fixed and is protected orthopedic ware, it is equipped with helps the extension spring to straighten in order to assist patient's shank to have the effect that alleviates patient's knee joint load.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the lower part of the thigh hoop is hinged with a shank hoop, a hinge component for connecting the thigh hoop and the shank hoop and an extension assisting spring for assisting the knee joint to be straightened are arranged between the thigh hoop and the shank hoop, two ends of the extension assisting spring are fixedly connected with the thigh hoop and the shank hoop respectively, and the extension assisting spring is arranged on the front side of the hinge component.

By adopting the technical scheme, the thigh hoop and the shank hoop are hinged through the hinge assembly, the hinge position is positioned at the knee joint of a patient, when the knee joint of the patient is bent, the shank hoop rotates around the thigh hoop, one end of the extension-assisting spring rotates around the other end, the connecting line of two end points of the extension-assisting spring is continuously close to the rotating axis of the hinge assembly, the distance between the two ends of the extension-assisting spring is increased because the distance between the extension-assisting spring and the rotating axis of the hinge assembly is fixed, the extension-assisting spring is stretched, when the connecting line of the two end points of the extension-assisting spring passes through the rotating axis of the hinge assembly, the distance between the two ends of the extension-assisting spring begins to be reduced, the stretching amplitude of the extension-assisting spring is reduced, the thigh hoop and the shank are kept in a bent state under the elastic action of the extension-assisting spring, when the patient needs to straighten the, at the moment, the thigh hoop is pulled to rotate around the shank hoop and to be in a straightening state under the action of the tension of the extension assisting spring, so that the straightening of the leg of the patient is assisted, and the knee joint load of the patient is relieved.

The present invention may be further configured in a preferred embodiment as: the hinge assembly comprises an upper connecting piece fixed on the thigh hoop, a lower connecting piece fixed on the shank hoop and a hinge piece connected with the upper connecting piece and the lower connecting piece, the upper connecting piece is fixedly connected with the hinge piece, and the lower connecting piece is hinged with the hinge piece.

By adopting the technical scheme, one end of the upper connecting piece is fixedly connected with the thigh hoop, the other end of the upper connecting piece is fixedly connected with the hinging piece, so that the thigh hoop is fixedly connected with the hinging piece, one end of the lower connecting piece is fixedly connected with the shank hoop, the other end of the lower connecting piece is hinged with the hinging piece, so that the shank hoop is hinged with the hinging piece, and the thigh hoop is hinged with the shank hoop.

The present invention may be further configured in a preferred embodiment as: the lower part of articulated elements is seted up and is held the lower hinge groove of lower connecting piece tip, connecting piece fixedly connected with stretches out down the stopper in hinge groove, the cover is equipped with on the articulated elements and covers the hasp in lower hinge groove, the hasp with the stopper offsets, the hasp with the articulated elements cooperation of sliding.

Through adopting above-mentioned technical scheme, because lower connecting piece is articulated with the articulated elements, and locate the hinge inslot, lower connecting piece can take place to rotate in the hinge inslot, the hasp that sets up covers the hinge groove and offsets with the stopper, thereby the rotation of connecting piece has been down restricted, prevent that thigh hoop and shank hoop from taking place to rotate, be favorable to helping the patient to keep the state of straightening of knee joint, when patient's knee joint needs to be crooked, only need slide the hasp from hinge groove down, the restriction of hasp to connecting piece down can be relieved this moment, the patient only needs can realize the bending of knee joint hard.

The present invention may be further configured in a preferred embodiment as: and a foot supporting pad is arranged at the lower side of the shank hoop.

Through adopting above-mentioned technical scheme, the foot supporting pad that sets up forms the support to patient's foot, and when the patient used this orthopedic ware, its shank and foot homoenergetic obtained fixedly and protect to be favorable to the whole recovery of low limbs.

The present invention may be further configured in a preferred embodiment as: a gap is reserved between the shank hoop and the foot supporting pad, and an ankle buffering block for connecting the shank hoop and the foot supporting pad is fixedly arranged.

Through adopting above-mentioned technical scheme, leave the gap and connect through ankle part buffer block between shank hoop and the foot supporting pad, the gap of reserving makes the foot supporting pad provide the space for the activity of shank hoop to but the patient realizes the activity of ankle part, is favorable to the blood circulation between shank and the foot to be bad.

The present invention may be further configured in a preferred embodiment as: the ankle part buffer block is designed into an arc shape with an inward concave surface facing the inner side of the foot supporting pad.

Through adopting above-mentioned technical scheme, the interior concave surface of ankle buffer block reserves the space for the ankle bone of patient's evagination, has reduced the ankle bone effectively and has caused the possibility of wearing and tearing with the contact of ankle buffer block to the comfort when having improved the patient and using.

The present invention may be further configured in a preferred embodiment as: the ankle block is made of a material that is resilient and soft in texture.

Through adopting above-mentioned technical scheme, ankle part buffer block is made by elasticity and soft material of texture, adopts rubber, and when the patient used this orthopedic ware, the patient easily collided with ankle part buffer block because its ankle bone of foot's activity, and rubber has formed buffering and protection to the ankle bone to avoid the collision and produced pain.

The present invention may be further configured in a preferred embodiment as: an inner side connecting piece facing towards the inner side of the leg of the patient is arranged between the thigh hoop and the shank hoop.

Through adopting above-mentioned technical scheme, the upper portion and the thigh hoop fixed connection of inboard connecting piece, its lower part is articulated with shank hoop, and inboard connecting piece is located this orthopedic ware towards the inboard of patient's shank, and articulated subassembly and help the outside that the spring located patient's shank, compare with articulated subassembly, the simple structure of inboard connecting piece, the volume is less to the effectual wearing and tearing that prevent patient's shank is inboard, has the effect that reinforcing thigh hoop and shank hoop are connected stability simultaneously.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the thigh hoop and the shank hoop are hinged through a hinge assembly, the shank hoop rotates around the thigh hoop due to the bending of the knee joint, the extension-assisting spring is stretched at the moment, the axis of the extension-assisting spring passes through the rotating axis of the hinge assembly, the thigh hoop and the shank hoop keep a bent state, when a patient straightens the leg, the axis of the extension-assisting spring rotates away from the rotating axis of the hinge assembly, the shank hoop rotates around the thigh hoop under the action of the tension of the extension-assisting spring and is in a straightened state, so that the straightening of the leg of the patient is assisted, and the knee joint load of the patient is relieved;

2. the thigh hoop is fixedly connected with the hinged piece through an upper connecting piece, and the shank hoop is hinged with the hinged piece through a lower connecting piece, so that the thigh hoop and the shank hoop are hinged;

3. the lower connecting piece can rotate in the hinge groove, the lock catch covers the hinge groove and abuts against the limiting block, the rotation of the lower connecting piece is limited, the thigh hoop and the shank hoop are prevented from rotating, and the knee joint straightening state of a patient can be kept.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view of the structure of the medial connection.

Reference numerals: 1. a thigh hoop; 11. a magic tape bandage; 2. a calf hoop; 3. a foot support pad; 31. an ankle bumper; 41. an upper connecting piece; 42. a lower connecting piece; 421. a limiting block; 43. an articulation member; 431. an upper fixing groove; 432. a lower hinge groove; 433. the arc shape is convex; 434. locking; 5. an extension-assisting spring; 6. an inboard connector.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a child knee joint fixing and protecting orthosis, including thigh hoop 1, shank hoop 2 and foot supporting pad 3 that connect gradually from last to lower. The cross sections of the thigh hoop 1 and the shank hoop 2 are both U-shaped, and the outer side walls of the thigh hoop 1 and the shank hoop 2 are both fixedly provided with magic tape bandages 11. When the patient uses this unscrambler, the patient stretches into this unscrambler with the shank, draws tightly and fixes magic subsides bandage 11, makes the inner wall of thigh hoop 1 and shank hoop 2 laminate with patient's thigh and shank respectively.

Referring to fig. 1 and 2, a hinge assembly and an extension-assisting spring 5 are arranged between the thigh hoop 1 and the shank hoop 2, and the hinge assembly comprises a hinge 43, an upper connecting member 41 and a lower connecting member 42. The hinge member 43 is a rectangular block structure, the upper and lower end faces of the hinge member 43 are both arc-shaped, and the axes of the two arc-shaped end faces are both perpendicular to the outer side wall of the thigh hoop 1. An arcuate projection 433 is integrally formed on the side wall at the bottom end of the hinge member 43. The arc-shaped protrusion 433 is in the shape of an arc, and the diameter of the arc-shaped protrusion is equal to the diameter of the arc surface at the lower end of the hinge 43 and is larger than the width of the hinge 43. An upper fixing groove 431 and a lower hinge groove 432 are respectively formed in the upper end face and the lower end face of the hinge piece 43, the upper fixing groove 431 is communicated with the side wall of the hinge piece 43, and the lower hinge groove 432 is communicated with the side wall which is far away from the hinge piece and the arc-shaped side wall of the arc-shaped outer protrusion 433.

Referring to fig. 2, the cross-sections of the upper connecting member 41 and the lower connecting member 42 are rectangular, the upper end of the upper connecting member 41 is fixedly connected to the outer sidewall of the thigh hoop 1, the lower end of the upper connecting member 41 is inserted into the upper fixing groove 431 and attached to the inner wall of the fixing groove, and the upper connecting member 41 is fixedly connected to the hinge 43 by two bolts. The lower end of the lower connecting member 42 is fixedly connected to the outer sidewall of the calf hoop 2, and the upper end of the lower connecting member 42 is inserted into the lower hinge groove 432 and is hinged to the hinge member 43. The thigh hoop 1 is fixedly connected with a hinge 43 through an upper connecting piece 41, and the shank hoop 2 is hinged with the hinge 43 through a lower connecting piece 42, so that the thigh hoop 1 and the shank hoop 2 are hinged, and conditions are provided for the bending of the knee joint of a patient.

Referring to fig. 1 and 2, two ends of the extension-assisting spring 5 are respectively and fixedly connected with the side walls of the thigh hoop 1 and the shank hoop 2 provided with the hinge assemblies, the extension-assisting spring 5 is positioned on one side of the hinge 43 far away from the arc-shaped protrusion 433, and when the leg of the patient is straightened, the connecting line of the two ends of the extension-assisting spring 5 is perpendicular to the end surface of the hinge 43. When the leg of a patient is bent, the shank hoop 2 rotates around the shank hoop 1 to enable the extension-assisting spring 5 to be stretched, after the axis of the extension-assisting spring 5 passes through the rotating axis of the hinge 43, the thigh hoop 1 and the shank hoop 2 are kept in a bent state by the elasticity of the spring, when the leg of the patient needs to be straightened, the patient only needs to extend the leg to enable the axis of the extension-assisting spring 5 to rotate away from the rotating axis of the hinge 43, and the extension-assisting spring 5 can pull the shank hoop 2 to rotate around the shank hoop 1 to be in a straightened state, so that the straightening of the leg of the patient is assisted, and the knee joint load of the patient is relieved.

Referring to fig. 2, the hinge 43 is sleeved with a latch 434, the cross section of the latch 434 is rectangular frame-shaped, and the inner sidewall of the latch 434 is fitted to the outer sidewall of the hinge 43 and slidably engaged therewith. The side wall of the upper end of the lower connecting member 42 is fixedly provided with a limiting block 421, the limiting block 421 is a triangular block-shaped structure, the block-shaped structure extends out of the outer side of the lower hinge groove 432, and the limiting block 421 and the arc-shaped outer protrusion 433 are respectively located at two sides of the hinge member 43. When the patient needs to keep the leg straight, the latch 434 covers the lower hinge groove 432, and the lower end of the latch 434 abuts against the upper end surface of the limiting block 421, so that the rotation of the lower connecting member 42 is limited, and the relative rotation of the thigh hoop 1 and the shank hoop 2 is limited. When the knee joint of the patient needs to be bent, the lock 434 is only required to slide away from the lower hinge groove 432, at this time, the limit of the lock 434 on the lower connecting piece 42 is released, and the patient only needs to exert force to realize the bending of the knee joint.

Referring to fig. 1 and 3, an inner side connecting member 6 is further arranged between the thigh hoop 1 and the calf hoop 2, the inner side connecting member 6 is of a rectangular block-shaped structure, two end faces of the inner side connecting member 6 are arc-shaped, the upper portion of the inner side connecting member 6 is fixedly connected with the outer side wall of the thigh hoop 1 far away from the hinge assembly, the lower portion of the inner side connecting member is hinged with the outer side wall of the calf hoop 2 far away from the hinge assembly, and the effect of enhancing the connection stability of the thigh hoop 1 and the calf hoop. And the medial connection 6 faces the medial side of the patient's leg, compared with a hinge assembly, the medial connection 6 has a simple structure and a small volume, thereby effectively preventing the medial wear of the patient's leg.

Referring to fig. 1, a foot supporting pad 3 is disposed on the lower side of the lower leg hoop 2, the foot supporting pad 3 is in a shoe shape with a hollowed upper portion, a gap is left between the top surface of the foot supporting pad 3 and the lower end of the lower leg hoop 2, and an ankle buffering block 31 is disposed between the foot supporting pad 3 and the lower leg hoop 2. Ankle buffer block 31 establishes to curved sheet structure, and its concave surface is towards the inboard of foot supporting pad 3, and ankle buffer block 31 has two, and two ankle buffer blocks 31 are located the both sides that foot supporting pad 3 was equipped with articulated subassembly and inboard connecting piece 6 respectively, and ankle buffer block 31 upper end all with the lateral wall fixed connection of shank hoop 2, its lower extreme and foot supporting pad 3's lateral wall fixed connection. Ankle part buffer block 31 is connected shank hoop 2 and foot supporting pad 3, and the gap between shank hoop 2 and the foot supporting pad 3 provides the space of activity for shank hoop 2 and foot supporting pad 3, and when patient's foot and shank penetrated this unscrambler, foot supporting pad 3 can realize the activity of its ankle part when forming the support to patient's foot to be favorable to the whole of low limbs to resume. And the concave surface of the ankle bumper block 31 faces towards the ankle of the patient, so that the possibility of abrasion caused by contact between the ankle bone and the ankle bumper block 31 is effectively reduced. The ankle bumper block 31 is made of elastic and soft material, and is made of rubber, so that the rubber can cushion and protect the ankle bone, and pain caused by collision between the ankle bone of the patient and the ankle bumper block 31 can be avoided.

The implementation principle of the embodiment is as follows: the thigh hoop 1 and the shank hoop 2 are hinged through a hinge assembly, the hinged position is positioned at the knee joint of a patient, when the knee joint of the patient is bent, the shank hoop 2 rotates around the thigh hoop 1, one end of an extension-assisting spring 5 rotates around the other end, a connecting line of two end points of the extension-assisting spring 5 is continuously close to the rotating axis of the hinge assembly, the distance between the two ends of the extension-assisting spring 5 is increased due to the fixed distance between the extension-assisting spring 5 and the rotating axis of the hinge assembly, the extension-assisting spring 5 is stretched, when the connecting line of the two end points of the extension-assisting spring 5 passes through the rotating axis of the hinge assembly, the distance between the two ends of the extension-assisting spring 5 begins to be reduced, the stretching amplitude of the extension-assisting spring 5 is reduced, the elastic force of the extension-assisting spring 5 enables the thigh hoop 1 and the shank hoop 2 to be kept in a bent state, when the patient needs to stretch the, at the moment, the thigh hoop 1 is pulled to rotate around the shank hoop 2 and to be in a straightening state by the tensile force of the extension assisting spring 5, so that the straightening of the legs of the patient is assisted, and the knee joint load of the patient is relieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (6)

1. The utility model provides a children knee joint fixed protection orthosis, includes thigh hoop (1), thigh hoop (1) lower part articulates there is shank hoop (2), its characterized in that: a hinge assembly for connecting the thigh hoop (1) and the shank hoop (2) and an extension assisting spring (5) for assisting the extension of the knee joint are arranged between the thigh hoop (1) and the shank hoop (2), two ends of the extension assisting spring (5) are respectively fixedly connected with the outer side walls of the thigh hoop (1) and the shank hoop (2), and the extension assisting spring (5) is arranged on the front side of the hinge assembly; the hinge assembly comprises an upper connecting piece (41) fixed on the thigh hoop (1), a lower connecting piece (42) fixed on the shank hoop (2) and a hinge piece (43) connecting the upper connecting piece (41) and the lower connecting piece (42), the upper connecting piece (41) is fixedly connected with the hinge piece (43), and the lower connecting piece (42) is hinged with the hinge piece (43); the lower part of articulated elements (43) is seted up and is held lower hinge groove (432) of lower connecting piece (42) tip, lower connecting piece (42) fixedly connected with stretches out stopper (421) of lower hinge groove (432), the cover is equipped with on articulated elements (43) and covers hasp (434) of lower hinge groove (432), hasp (434) with stopper (421) offset, hasp (434) with articulated elements (43) cooperation of sliding.

2. A child knee fixation brace according to claim 1, wherein: the lower part of the shank hoop (2) is provided with a foot supporting pad (3).

3. A child knee fixation brace according to claim 2, wherein: a gap is reserved between the shank hoop (2) and the foot supporting pad (3), and an ankle buffer block (31) for connecting the shank hoop (2) and the foot supporting pad (3) is fixedly arranged.

4. A child knee fixation brace according to claim 3, wherein: the ankle part buffer block (31) is designed to be an arc shape with an inward concave surface facing the inner side of the foot supporting pad (3).

5. A child knee fixation brace according to claim 3, wherein: the ankle block (31) is made of a material having elasticity and a soft texture.

6. A child knee fixation brace according to claim 1, wherein: an inner side connecting piece (6) facing towards the inner side of the leg of the patient is arranged between the thigh hoop (1) and the shank hoop (2).

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