A posture training chair suitable for children with cerebral palsy

Abstract

This utility model discloses a sitting posture training chair suitable for children with cerebral palsy, including a chair board and a base. The bottom of the chair board is formed with at least one vertically extending connecting leg, which is vertically and movably inserted into the top of the base. The top surface of the chair board has two sets of symmetrically arranged upper holes, each set of upper holes including at least three parallel upper through holes, and a thigh strap is detachably threaded between any two upper through holes in the same set. The front side of the base has two sets of symmetrically arranged lower holes, each set of lower holes including at least three parallel lower through holes, and a calf strap is detachably threaded between any two lower through holes in the same set.

Description

Technical Field

[0001] This utility model relates to the technical field of sitting posture training equipment, and in particular to a sitting posture training chair suitable for children with cerebral palsy. Background Technology

[0002] Children with cerebral palsy often experience problems such as unstable sitting posture and poor trunk control due to motor dysfunction. Most existing training chairs use a fixed structure, which cannot adjust the support position according to the child's body shape and rehabilitation stage, resulting in limited training effectiveness. For example, traditional straps are fixed in position and cannot accommodate children with different leg lengths; the chair height is not adjustable, making it difficult to match the sitting posture needs of children of different heights.

[0003] Specifically, existing training chairs generally use a one-piece welded frame with no height adjustment mechanism between the chair seat and the base, leading to the following problems: 1) Incompatibility in height matching: The sitting height difference between children aged 3-12 years can be more than 30cm, but the fixed chair is only suitable for a single sitting height (such as 40cm), causing the feet of short children to dangle (increasing the adduction torque of the hip joint) or the knees of tall children to be excessively flexed (>120°), accelerating the risk of joint contractures. 2) Poor growth adaptability: Children with cerebral palsy need to use the chair for a long time (3-5 years), but the existing equipment cannot be adjusted in stages as the child grows, forcing frequent replacement of equipment and increasing rehabilitation costs by more than 200%.

[0004] Therefore, there is an urgent need for a seated posture training device with adjustable height and flexible support points. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sitting training chair that is suitable for children with cerebral palsy, has dynamically adjustable support points, is adaptable to children of different body types, and has stable support for multiple parts.

[0006] To achieve the above objectives, this utility model provides a sitting posture training chair suitable for children with cerebral palsy, comprising a chair board and a base. The bottom of the chair board is formed with at least one vertically extending connecting leg, which is vertically and movably inserted into the top of the base. The top surface of the chair board has two sets of symmetrically arranged upper holes, each set of upper holes including at least three parallel upper through holes, and a thigh strap is detachably threaded between any two upper through holes in the same set. The front side of the base has two sets of symmetrically arranged lower holes, each set of lower holes including at least three parallel lower through holes, and a calf strap is detachably threaded between any two lower through holes in the same set.

[0007] Furthermore, it also includes a chair back fixed to the top surface of the chair seat.

[0008] Furthermore, the chair back is provided with two sets of symmetrically arranged chest strap holes, wherein each set of chest strap holes includes at least two chest strap perforations arranged in parallel, the chest strap perforations between the two sets of chest strap holes are aligned one by one, and a chest strap is detachably threaded between the two aligned chest strap perforations.

[0009] Furthermore, each of the connecting legs has multiple vertically arranged positioning holes on its side wall, and the base side wall has a connecting through hole that can be aligned with any of the positioning holes and through which a pre-set locking pin passes.

[0010] The advantages of this utility model using the above-mentioned solution are as follows: 1) Dynamic adaptation and adjustment: Through the vertical movable plug-in structure connecting the support legs and the multi-level positioning hole design, combined with the locking pin fixing method, the height of the chair board can be infinitely adjusted. The support points can be dynamically adjusted according to the child's height and sitting posture needs, accurately adapting to different body types. 2) Multi-dimensional restraint support: The innovative graded hole group structure design is adopted, with three or more adjustment points set in the upper hole group, lower hole group, and chest strap hole group, supporting multi-level fixation of the thigh, calf, and chest straps. The child's limbs can be accurately limited in the sagittal and coronal planes, avoiding the risk of slippage and preventing excessive restraint. 3) Modular and expandable: All strap systems adopt a detachable design, which facilitates flexible adjustment of restraint intensity according to the rehabilitation stage. The standardized arrangement of the hole groups is compatible with various specifications of strap accessories, meeting the progressive rehabilitation needs of children from low tension to high tension. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a posture training chair.

[0012] Figure 2 This is a schematic diagram of the longitudinal section of the posture training chair at the positioning hole.

[0013] 1-Seat board, 11-Connecting leg, 111-Positioning hole, 12-Upper perforation, 13-Thigh strap, 2-Base, 21-Lower perforation, 22-Lower leg strap, 24-Locking pin, 3-Seat backrest, 31-Chest strap perforation, 32-Chest strap. Detailed Implementation

[0014] To more fully illustrate this utility model, a detailed description will be provided below in conjunction with the accompanying drawings. The drawings depict preferred embodiments of this utility model. However, it is worth noting that this utility model is not limited to these specific forms and can be implemented in various ways. These embodiments are provided to enable the reader to gain a deeper understanding of this utility model.

[0015] As attached Figure 1-2As shown in this embodiment, a sitting posture training chair suitable for children with cerebral palsy includes a chair board 1, a base 2, and a backrest 3. The chair board 1 and the base 2 are designed with vertical height adjustment to accommodate children of different heights and leg lengths. Specifically, the bottom of the chair board 1 is formed with at least one vertically extending connecting leg 11, and the top of the base 2 is formed with at least one connecting cavity that is open at the top and allows the connecting leg 11 to be inserted. The side wall of each connecting leg 11 is provided with multiple vertically arranged positioning holes 111 (the distance between two adjacent positioning holes 111 is 2cm). The side wall of the base 2 is provided with a connecting through hole that can be aligned with any positioning hole 111 and through which a preset locking pin 24 passes. Thus, by inserting the connecting leg 11 into the connecting cavity one by one, and with the preset locking pin 24 passing through the aligned connecting through hole and positioning hole 111 in sequence, the height adjustment function between the chair board 1 and the base 2 can be realized. The adjustment range covers the standard sitting height range of 20-50cm to accommodate the growth and development differences of children aged 3-12.

[0016] Preferably, the bottom of the chair seat 1 is provided with four connecting legs 11, and correspondingly, the top of the base 2 has four connecting cavities for each connecting leg 11 to be inserted and fitted in a one-to-one manner.

[0017] In this embodiment, the top surface of the chair board 1 has two sets of symmetrically arranged upper holes. Each set of upper holes includes at least three parallel upper perforations 12 (10cm in diameter and 2cm in spacing). A thigh strap 13 is detachably threaded between any two upper perforations 12 in the same set. Therefore, when the child sits on the chair board 1, the two sets of upper holes correspond to the child's two thighs respectively. Based on the position and thickness of the child's thighs, a thigh strap 13 is threaded between two suitable upper perforations 12 in the same set, thereby forming a closed loop to restrain the child's thighs. This adapts to different child body types, prevents slippage, and promotes hip joint stability.

[0018] In this embodiment, two sets of symmetrically arranged lower holes are provided on the front side of the base 2. Each set of lower holes includes at least three parallel lower perforations 21 (10cm in diameter and 2cm in spacing). A calf strap 22 is detachably threaded between any two lower perforations 21 in the same set. Therefore, when the child is sitting on the chair 1 with both lower legs in front of the base 2, the two sets of lower holes correspond to the child's two lower legs respectively. Depending on the position and thickness of the child's lower legs, a calf strap 22 is threaded between two suitable lower perforations 21 in the same set of upper holes, thereby forming a closed loop to restrain the child's lower legs. This can adapt to different child body types, prevent the child from slipping, and promote knee joint stability.

[0019] In summary, by using the thigh strap 13 and the calf strap 22 to restrain the child's legs in sections, the child's sitting posture can be trained, abnormal posture can be corrected, and the system is flexible and adjustable.

[0020] In this embodiment, the thigh strap 13 and the calf strap 22 can be made of medical-grade silicone-coated nylon webbing Velcro, which has a certain degree of elasticity, making it more convenient to operate and more comfortable.

[0021] In use, firstly, adjust the height between the chair board 1 and the base 2 according to the child's height and body shape. This ensures that the child's feet remain in contact with the ground and their knees remain naturally bent while seated on the chair board 1. Specifically, align the corresponding positioning holes 111 with the connecting holes and insert the locking pin 24 into the aligned positioning holes 111 and connecting holes to lock the seat. Next, based on the child's thigh and calf circumferences, select two upper holes 12 with matching spacing in the upper hole group and two lower holes 21 aligned with the marked points in the lower hole group. Then, thread one end of the thigh strap 13 through the two upper holes 12 and fold it back, and thread the calf strap 22 through the two lower holes 21 and fold it back. Finally, secure the child's thighs and calves with Velcro. This restraint of the child's lower limbs helps correct and train their sitting posture.

[0022] In this embodiment, for some children with poor trunk control, their upper body may tilt or fall over during sitting posture training. Therefore, a backrest 3 fixed to the top surface of the chair board 1 is also included to support the child's back. Each group of chest strap holes includes at least two parallel chest strap holes 31. The chest strap holes 31 between the two groups of chest strap holes are aligned one-to-one, and a chest strap 32 is detachably threaded between the two aligned chest strap holes 31. Thus, a pair of chest strap holes 31 of suitable height from the two groups of chest strap holes are selected according to the child's height. Then, one end of the chest strap 32 is sequentially threaded through the two chest strap holes 31 and folded back. Finally, it is fixed to the child's chest with Velcro. In this way, the chest strap 32 restrains the child's upper limbs, providing auxiliary support and preventing the child from falling over uncontrollably.

[0023] In summary, modular adjustment design can achieve anatomical adaptation and support for the lower limbs, trunk, and head and neck, thereby improving the effect of posture correction and avoiding the risk of secondary injury during rehabilitation training.

[0024] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. A sitting posture training chair for children with cerebral palsy, characterized in that: The chair includes a chair seat (1) and a base (2). The bottom of the chair seat (1) is formed with at least one vertically extending connecting leg (11), which is vertically and movably inserted into the top of the base (2). The top surface of the chair seat (1) is provided with two sets of symmetrically arranged upper holes, wherein each set of upper holes includes at least three parallel upper through holes (12), and a thigh strap (13) is detachably threaded between any two upper through holes (12) in the same set. The front side of the base (2) is provided with two sets of symmetrically arranged lower holes, wherein each set of lower holes includes at least three parallel lower through holes (21), and a calf strap (22) is detachably threaded between any two lower through holes (21) in the same set.

2. The sitting posture training chair for children with cerebral palsy according to claim 1, characterized in that: It also includes a chair back (3) fixed to the top surface of the chair board (1).

3. The sitting posture training chair for children with cerebral palsy according to claim 2, characterized in that: The chair back (3) is provided with two sets of symmetrically arranged chest strap holes, wherein each set of chest strap holes includes at least two chest strap perforations (31) arranged in parallel, and the chest strap perforations (31) between the two sets of chest strap holes are aligned one by one, and a chest strap (32) is detachably wrapped around the two aligned chest strap perforations (31).

4. The sitting posture training chair for children with cerebral palsy according to claim 1, characterized in that: Each of the connecting legs (11) has a plurality of vertically arranged positioning holes (111) on its side wall, and the base (2) has a connecting through hole on its side wall that can be aligned with any of the positioning holes (111) and through which a pre-set locking pin (24) passes.

Images