CN111228022A - Passive hip joint limiting auxiliary support - Google Patents

Abstract

The invention discloses a passive hip joint limiting auxiliary support device which is composed of a support rod, a limiting rod and a support bracket and used for postoperative patients with femoral fracture repair, hip joint replacement and the like, wherein the support bracket connects the support rod and the limiting rod into a whole; the waist thermoplastic plates and the leg thermoplastic plates are respectively fixed with the upper body and the legs of the human body by the limiting rods through the sponge nylon belts, and the foot supports are bound with the feet through the sponge nylon belts to realize wearing; the armpit of the human body is pressed on the support, and the weight of the upper body is transferred to the ground through the support rod and the foot support, so that the support effect is realized; the length of the supporting rod is adjusted to adapt to different heights of human bodies; the telescopic space at the lower part of the support rod is used for adapting to the change of the distance from the foot plate to the armpit when a human body walks; the limiting rod limits the movement of the hip joint through the limiting spherical hinge; the auxiliary support and the hip joint limiting function for the patient are realized.

Description

Passive hip joint limiting auxiliary support

Technical Field

The invention relates to the field of medical instruments, in particular to a passive hip joint limiting auxiliary support.

Background

The weight of the upper half of the body is transmitted to the lower limbs through the hip joints, which affect the walking, running, jumping, etc. of the body. After a fracture patient is repaired by an operation such as a bone fracture plate, an intramedullary nail and the like or the hip joint of the patient is replaced, the hip joint of the patient cannot bear overlarge load for safety; meanwhile, a bed for long time will affect the recovery of the body. Therefore, a passive hip joint limiting auxiliary support is needed to be developed to help a patient get up for safe exercise, so that the weight of the human body can be supported, and the movement range of the hip joint can be limited.

Disclosure of Invention

The invention provides a hip joint limiting auxiliary device for sharing hip joint load for patients who have hip joint problems or are treated by hip joints.

The technical scheme adopted by the invention is as follows: the waist thermoplastic plate at the upper part of the limiting rod is fixed with the upper body of the human body, the leg thermoplastic plate at the lower part of the limiting rod is fixed with the legs of the human body, and the movement range of the hip joint of the human body is limited through the hip hinge, so that the purpose of limiting is achieved. The foot rest of the supporting rod is connected with the foot plate of a human body, the upper end of the supporting rod is connected with the support, when the supporting rod needs to bear weight, the human body presses the support with the weight of the first half through the armpit, the weight is transmitted to the foot rest through the supporting rod, and finally the weight is transmitted to the ground.

In order to improve the wearing comfort and the disassembly convenience, the sponge inner cores are pasted inside the waist thermoplastic plate and the leg thermoplastic plates, so that the contact area with the human body is increased; the waist thermoplastic plate, the leg thermoplastic plates and the foot supports are fixed with the body parts and the feet of the human body by sponge nylon belts and bayonets.

The limiting rod spherical hinge pair is specially designed and consists of a waist rod, a hip hinge and a hip hinge sleeve, and the motion range of the hip hinge is limited by the special shape of the hip hinge sleeve; through design, the spherical hinge pair can limit the movement of the hip joint, the forward swing is 30 degrees, the backward swing is 7 degrees, the abduction is 10 degrees, the adduction is 7 degrees, and the movement beyond the range is limited. The support spherical hinge pair of the support rod consists of a support, a support hinge and a support hinge cover, and the movement range of the spherical hinge pair is 30 degrees in front swing, 30 degrees in back swing, 30 degrees in abduction and 30 degrees in adduction; the foot support spherical hinge pair of the supporting rod consists of a foot support, a foot support hinge and a foot support hinge cover, and the motion range of the spherical hinge pair is 30 degrees in front swing, 30 degrees in back swing, 30 degrees in abduction and 30 degrees in adduction; the two spherical hinge pairs increase the compatibility of the movement of the supporting rod and the movement of the human body, and the effect of increasing the wearing comfort level is achieved.

The relative position of the lower loop bar and the lower slide bar is changed, thereby adapting to the change of the linear distance between the sole and the armpit when the human body walks. When a human body is upright, the straight line distance from the armpit to the sole is the sum of the leg length and the body length increased by the shank length, and the distance between the armpit and the sole is the longest; when a human body walks, the hip joint is bent, the knee joint is bent, and the shortest straight-line distance from the armpit to the sole can be deduced from the fact that the sum of two sides of the triangle is larger than that of the third side. The change range of the straight line distance between the armpit and the sole needs to be equal to the moving range of the lower loop bar and the lower slide bar sliding pair, so that the geometrical parameters of human walking are met, and the wearing comfort is ensured.

The invention has the beneficial effects that: aiming at the problem that the patient is difficult to walk after the bone fracture repair of each part of the femur is fixed by an intramedullary nail or a bone plate, the hip joint limiting and reliable hip joint support is provided for the patient to walk after being worn, the time for the patient to lie in bed is reduced, the incidence probability of complications of the patient to lie in bed after the operation is reduced, the activity of the patient is increased, the immunity of the patient is increased, and the recovery of the state of an illness is accelerated.

Drawings

Fig. 1 is a schematic view of the whole wearing of the passive hip joint limiting auxiliary support.

Fig. 2 is a three-dimensional axial view of the passive hip joint limiting auxiliary support.

Fig. 3 is a three-dimensional front view and a left view of the passive hip joint limiting auxiliary support.

Fig. 4 is a partial detail schematic diagram of the passive hip joint limiting auxiliary support after being completely cut.

Fig. 5 is a quarter sectional schematic view of a hip joint ball hinge of a passive hip joint limiting auxiliary support.

Labeled as: A. a support bar; B. a limiting rod; C. supporting; a1, supporting and hinging cover; a2, support hinge; a3, an upper sliding rail; a4, an upper slide bar; a5, lower sleeving rod; a6, a lower slide bar; a7, a foot support hinge; a8, a foot support hinged cover; a9, a foot rest; b1, a chest rod; b2, waist thermoplastic sheet; b3, waist bar; b4, a hip hinge sleeve; b5, hip hinge; b6, leg bar; b7, leg thermoplastic panels.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The exemplary spacing auxiliary support is worn by the left foot, the principle of wearing by the right foot is similar, and the two are symmetrical about the sagittal plane of the human body.

As shown in fig. 1, 2 and 4, the present example provides a passive hip-limiting auxiliary support, comprising: comprises a support rod (A), a limiting rod (B) and a support (C); the support rod (A) comprises a support hinge cover (A1), a support hinge (A2), an upper sliding rail (A3), an upper sliding rod (A4), a lower sleeve rod (A5), a lower sliding rod (A6), a foot support hinge (A7), a foot support hinge cover (A8) and a foot support (A9); the supporting rods (B) comprise chest rods (B1), waist thermoplastic plates (B2), waist rods (B3), hip hinge sleeves (B4), hip hinges (B5), leg rods (B6) and leg thermoplastic plates (B7); the supporting rod (A) and the limiting rod (B) are connected into a whole through the support (C), the supporting rod (A) realizes the supporting function, and the limiting rod (B) realizes the function of limiting the movement range of the hip joint. The principle of wearing the auxiliary spacing support device on the left foot and the right foot is similar to the principle of wearing the auxiliary spacing support device on the right foot in the figure, and the two are symmetrical about the sagittal plane of a human body.

In the example, the inner walls of the waist thermoplastic plate and the leg thermoplastic plates can be provided with the sponge inner core according to actual needs, so that the contact area between the thermoplastic plates and the human body is increased, and the wearing comfort is improved; the sponge nylon belt is connected with the human body through the edge square holes of the waist thermoplastic plate and the leg thermoplastic plates, the sponge nylon belt is connected with the human body foot plate through the edge square holes of the foot supports, and the connecting mode adopts a buckle and a magic tape; the waist thermoplastic plate is firmly connected with the chest and the waist of the human body, the leg thermoplastic plate is firmly connected with the legs of the human body, and the foot support is firmly connected with the foot plate of the human body, so that the wearing of the hip joint limiting auxiliary support is realized.

In this example, the chest rod is held by a bolted connection; the chest rod and the waist rod are connected with the waist thermoplastic plate through rivets, and the leg rod is connected with the leg thermoplastic plate through rivets; the shape of the waist thermoplastic plate conforms to the shape contour of the chest and waist part of the human body, and the shape of the leg thermoplastic plate conforms to the shape contour of the thigh of the human body; the tail end of the waist rod is connected with the hip hinge in a spherical hinge pair mode, the movement of the hip hinge is limited through the hip hinge sleeve, the hip joint can swing forwards by 30 degrees, swing backwards by 7 degrees, abduct by 10 degrees and adduct by 7 degrees after being worn by a human body, and the movement exceeding the angles can be limited; the hip hinge sleeve and the waist rod are connected through a bolt.

In this example, the bracket hinge and the bracket are connected by means of a ball hinge, and a bracket cover and a bolt are used to connect them into a rotatable whole; the support hinge and the upper sliding rail are connected into a fixed whole through a bolt; after the relative positions of the upper slide rail and the upper slide bar are adjusted, the upper slide rail and the upper slide bar are fixed by bolts, so that the length of the supporting rod is changed to adapt to different heights; the upper sliding rod and the lower sleeve rod are connected into a fixed whole through bolts; the lower loop bar is connected with the lower slide bar through a sliding pair, the moving range of the sliding pair is 120mm, and the data is properly changed according to different heights of human bodies; the lower sliding rod and the foot support hinge are connected into a fixed whole through a bolt; the foot support hinge and the foot support are connected through the spherical hinge pair, and are connected into a rotatable whole through the foot support hinge cover and the bolt.

In this example, the movement range of the support hinge and the spherical hinge pair of the support is 30 degrees of forward swing, 30 degrees of backward swing, 30 degrees of abduction and 30 degrees of adduction, and the movement range of the spherical hinge pair is larger than the range of the limiting rod after the hip joint movement is limited; the motion range of the foot support hinge and the ball hinge pair of the foot support is 30 degrees of front swing, 30 degrees of back swing, 30 degrees of abduction and 30 degrees of adduction, and the motion range of the ball hinge pair is in line with the motion range of the ankle joint. When a human body stands upright, the relative positions of the lower loop bar and the lower sliding bar are farthest, and when a left foot steps to the farthest, the relative positions of the lower loop bar and the lower sliding bar are nearest, so that the bearing function can be realized when a person walks.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a spacing supplementary eyelidretractor of passive hip joint which characterized in that: comprises a support rod (A), a limiting rod (B) and a support (C); the support rod (A) comprises a support hinge cover (A1), a support hinge (A2), an upper sliding rail (A3), an upper sliding rod (A4), a lower sleeve rod (A5), a lower sliding rod (A6), a foot support hinge (A7), a foot support hinge cover (A8) and a foot support (A9); the supporting rods (B) comprise chest rods (B1), waist thermoplastic plates (B2), waist rods (B3), hip hinge sleeves (B4), hip hinges (B5), leg rods (B6) and leg thermoplastic plates (B7); the support rod (A) and the limiting rod (B) are connected into a whole through the support (C); the main mechanical structure of the support comprises a limiting spherical hinge, a fixable sliding pair and a movable sliding pair.

2. A passive hip spacing aid according to claim 1, wherein: the inner walls of the waist thermoplastic plate (B2) and the leg thermoplastic plates (B7) can be provided with sponge inner cores according to actual needs, so that the contact area of the thermoplastic plates and human bodies is increased, and the wearing comfort is improved; the sponge nylon belt is connected with the human body through the square holes at the edges of the waist thermoplastic plate (B2) and the leg thermoplastic plate (B7), the sponge nylon belt is connected with the human body foot plate through the square holes at the edge of the foot support (A9), and the connection mode adopts a buckle and a magic tape; the waist thermoplastic plate (B2) is firmly connected with the chest and the waist of the human body, the leg thermoplastic plate (B7) is firmly connected with the legs of the human body, and the foot rest (A9) is firmly connected with the foot board of the human body.

3. A passive hip spacing aid according to claim 1, wherein: the chest rod (B1) is connected with the support (C) through a bolt; the chest rod (B1) and the waist rod (B3) are connected with the waist thermoplastic plate (B2) through rivets, and the leg rod (B6) is connected with the leg thermoplastic plate (B7) through rivets; the waist thermoplastic sheet (B2) is in shape to conform to the outline of the breast part of the human body, and the leg thermoplastic sheet (B7) is in shape to conform to the outline of the thigh part of the human body; the tail end of the waist rod (B3) is connected with a hip hinge (B5) in a spherical hinge pair mode, and the movement of the hip hinge (B5) is limited through a hip hinge sleeve (B4); the hip hinge sleeve (B4) and the waist rod (B3) are connected through bolts.

4. A passive hip spacing aid according to claim 1, wherein: the support hinge (A2) and the support (C) are connected in a spherical hinge mode, and a support cover (A1) and a bolt are used for connecting the support hinge (A2) and the support (C) into a rotatable whole; the support hinge (A2) and the upper sliding rail (A3) are connected into a fixed whole through bolts; after the relative positions of the upper slide rail (A3) and the upper slide bar (A4) are adjusted, the upper slide rail and the upper slide bar are fixed by bolts; the upper sliding rod (A4) and the lower sleeve rod (A5) are connected into a fixed whole through bolts; the lower loop bar (A5) and the lower slide bar (A6) are connected through a slide pair, and the moving range of the slide pair is 120 mm; the lower sliding rod (A6) and the foot support hinge (A7) are connected into a fixed whole through bolts; the foot support hinge (A7) and the foot support (A9) are connected through a ball hinge pair, and are connected into a rotatable whole through a foot support hinge cover (A8) and a bolt.

5. A passive hip spacing aid according to claim 1, wherein: the movement ranges of the spherical hinge pair of the support hinge (A2) and the support (C) are 30 degrees of forward swing, 30 degrees of backward swing, 30 degrees of abduction and 30 degrees of adduction; the motion range of the spherical hinge pair of the foot support hinge (A7) and the foot support (A9) is 30 degrees of forward swing, 30 degrees of backward swing, 30 degrees of abduction and 30 degrees of adduction.

6. A passive hip spacing aid according to claim 1, wherein:

when the human body is erected, the relative position of the lower loop bar (A5) and the lower slide bar (A6) is farthest, and when the left foot steps to the farthest, the relative position of the lower loop bar (A5) and the lower slide bar (A6) is nearest.

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