WO2023187832A1

WO2023187832A1 - Adjustable foldable posture correction mobility chair

Info

Publication number: WO2023187832A1
Application number: PCT/IN2023/050307
Authority: WO
Inventors: Subrata Kumar HALDER; Maya HALDER
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-31
Filing date: 2023-03-30
Publication date: 2023-10-05
Anticipated expiration: 2024-09-30

Abstract

Adjustable foldable posture correction mobility chair (100) of the present invention allows posture correction of a user suffering from abnormal conditions like cerebral palsy, down's syndrome, spina bifida, brain injury or the like any person needs to correct his/her posture. The chair (100) is configured to adjust width, depth of the usable space of the chair (100) to accommodate a user of any size and age group, while the foldability and easy reclination adjustability of the chair (100) makes it easy to operate, use, store and transport. Further the base (108) and the backrest (112) of the chair can be angle adjusted to hold the user in a desired functional position to achieve quick improvement in posture correction and controlled limb and trunk movement of the user.

Description

ADJUSTABLE FOLDABLE POSTURE CORRECTION MOBILITY CHAIR

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority from Indian Patent Application Number 202231019830, entitled “ADJUSTABLE FOLDABLE POSTURE CORRECTION MOBILITY CHAIR”, filed on March 31, 2022, which application is hereby incorporated herein by reference in its entirety.

FIELD OF THE INVENTION

[0002] The present invention generally relates to a chair. More specifically the invention relates to an adjustable foldable posture correction mobility chair.

BACKGROUND OF THE INVENTION

[0003] The following background information may present examples of specific aspects of the prior art (e.g., without limitation, approaches, facts, or common wisdom) that, while expected to be helpful to provide additional aspects of the prior art, is not to be construed as limiting the present invention, or any embodiments thereof, to anything stated or implied therein or inferred thereupon.

[0004] Ordinary or conventional chairs are not adequate to assist in satisfying the special needs of children or a user with cerebral palsy, Down’s syndrome, spina -bifida, brain injury or the like. For example, when the seat of an ordinary chair does not properly support the user in an appropriate position, thus resulting unnatural posture for the user, which becomes detrimental to normal development. Conventional chairs are not medically useful for posture correction of the user. Further, if an expensive custom chair of fixed geometry is provided considering the existing problem and existing size of the user, then it is useful but only until it becomes more advantageous to change the chair configuration. Hypotonic children with poor neck and trunk muscle control may only be able to sit up and hold their heads erect for short periods of time. Generally, the children are forced to spend much of their time lying on the floor which is good for development of head control but detrimental to their respiratory systems etc. When seated in ordinary chairs their heads tend to fall over to one side or pitch forward beyond range of their limited control and this tends to cause their bodies to slump into a scoliotic curve which may become permanent. Other similar several types of problem may arise, if each and every uncontrolled body part of the user is not taken care of for correct position correction and to improve the stability of such a child in maintenance of a sitting position and thereby permitting the child more useful movement and development of hand activities and operations.

[0005] Numerous innovations have been provided in prior art that are adapted to a chair for improvising posture correction of a user suffering from cerebral palsy or the like or any person needs to correct his/her posture. Even though these innovations may be suitable for the specific purposes to which they address, however, they would not be as suitable for the purposes of the present invention.

[0006] For example, in previous application for patent by the applicant which is now a registered Indian patent 407228 (Application Number 201731007185 ) to Halder et al., wherein the invention discloses an adjustable posture correction chair for improvising posture correction and controlled limb and trunk movement for a person or a child suffering from abnormal conditions like cerebral palsy, down"s syndrome, spina bifida, brain injury or the like any person needs to correct his/her posture. The adjustable chair comprises a seat, an adjustable back rest, an adjustable foot rest, an adjustable pair of armrests, an adjustable pair of shoulder guards, two backwardly inclined back legs, two front legs, a cutout tray, an adjustable pommel, adjustable C shaped pelvic supports and fixtures and additionally leg guards, trunk support, an adjustable headrest and the like. The chair provides height, depth, width and angle adjustable features to hold the user in a desired position to achieve quick improvement in posture correction and controlled limb and trunk movement of the user. However, while travelling and transportation it is realized to make the chair foldable so that it can be transported or carried easily, further easy and quick adjustability of the elements of the chair is also essential. [0007] Some other chairs are also identified in the prior art, wherein a U.S. Pat. No. 3,761,126 to Mulholland discloses about a chair especially useful for children with cerebral palsy has a super structure portion that can be totally uncoupled by way of two support posts from a substructure portion constituted by a wheeled base.

[0008] U.S. Pat. No. 3,992,057 to Studebaker discloses about a chair, especially useful for children with cerebral palsy, which has a backrest integral with a height adjustable seat. The backrest is provided with a chest strap for height adjustably strapping a child's chest erect. Adjustable armrests are fastened to the backrest in and out, and up and down. The seat is movable towards and away from the backrest.

[0009] U.S. Pat. No. 5,020,816 to Mulholland discloses about a collapsible wheelchair having opposing longitudinally and angularly adjustable frame members, linear bar sections with slots and slidable fasteners.

[0010] European Pat. No. EP2821034B1 to Belloch discloses about an orthopedic corset with - an inner shell, at least one foam block and an outer shell forming a back and a seat, provided with linear perforations and fastening elements introduced into the linear holes of the frame and the fastening strips perforations to adjust the chair according to the user requirement.

[0011] Chinese published patent application No. CN203749022U to Kaishou et al. disclose about an adjustable sitting posture correction chair which comprises a chair seat, a chair back and a neck support. The adjustable sitting posture correction chair further comprises body protection plates, side baffles and a plurality of adjustable connection supports. Point fixation and rail fixation are combined, the height, width and depth can be adjusted according to growth conditions of children, and the effects of lengthening, widening and deepening are played; because of the design of the universal ball bearing at the neck support, the height, the width and the depth of the neck support can be adjusted in a three-dimensional mode, and the needs of children with different levels of head control capacity are met.

[0012] It is apparent now that numerous innovations for a chair for improvising posture correction of a user suffering from cerebral palsy or the like have been developed in the prior art that are adequate for various purposes. Furthermore, even though these innovations may be suitable for the specific purposes to which they address, accordingly, they would not be suitable for the purposes of the present invention as heretofore described. Thus, an inexpensive, easy to adjust, easy to manufacture and adjustable and foldable mobility chair for improvising posture correction and controlled limb and trunk movement for a person or a child suffering from abnormal conditions like cerebral palsy, down’s syndrome, spina bifida, brain injury or the like while allowing easy transportability of the chair is needed.

SUMMARY OF THE INVENTION

[0013] The present invention relates generally to an adjustable foldable posture correction mobility chair for improvising posture correction of a user. More so, the present invention facilitates to improve postural stability and establishment of a functional sitting position to improve function for a user suffering from abnormal conditions like cerebral palsy, down’s syndrome, spina bifida, brain injury or the like wherein the chair has plurality of adjustable and compatible elements in multiple directions according to the needs of the user.

[0014] The principal objective of the chair of the present invention is to adjust width, depth of the usable space of the chair to accommodate a user of any size and age group, while the foldability and easy reclination adjustability of the chair makes it easy to operate, use, store and transport. Further the base and the backrest of the chair can be angle adjusted to hold the user in a desired functional and confined position to achieve quick improvement in posture correction and controlled limb and trunk movement of the user.

[0015] In view of the foregoing, it is therefore an object of the present invention to provide a chair for use of adjustable foldable posture correction mobility chair for improvising postural stability and establishment of a functional sitting position to improve function while sitting position for a user suffering from abnormal conditions like cerebral palsy, down’s syndrome, spina bifida, brain injury or the like or any person or user wants to correct his/her posture, wherein the chair has plurality of adjustable and compatible elements in multiple directions according to the individual needs of the user.

[0016] The chair of the present invention is used for improvising postural stability and establishment of a functional sitting position to improve function of a person or a child suffering from abnormal conditions like cerebral palsy, down’s syndrome, spina bifida, brain injury or the like to easily adjust to accommodate depth, width, height and angle of inclination of the chair as per the requirement of the user while allowing the chair to be folded and unfolded easily facilitating easy transport and storage.

[0017] It is another object of the present invention to provide a locking system that is holding the front legs and the back legs in position when in use while releasing the locking system allows the legs of the chair to get folded.

[0018] It is another object of the present invention to provide another attached with the folding and reclination mechanism of the chair, which is configured to adjust the reclination of the backrest with respect to the base, further releasing the locking system of the chair allows the backrest to get folded over the base.

[0019] It is another object of the present invention to provide an inexpensive, an easy to use, easy to manufacture chair for effectively improvising posture correction of a user.

[0020] It is another object of the present invention to provide a motor driven mechanism to drive the wheels of the chair.

[0021] It is another object of the present invention to provide provisions for attachment of large wheel to the lateral vertical post of the back rest on either side for enabling self-mobility and easy outdoor mobility of the user.

[0022] It is another object of the present invention to additionally provide a trunk support, a knee blocker/guard, a semicircular posterior pelvic support and other accessories as per the comfort and need of the user.

[0023] It is another object of the present invention to allow the base and the backrest of the chair can be angle adjusted to hold the user in a desired functional position to achieve quick improvement in posture correction and controlled limb and trunk movement of the user. Thus, the adjustable chair being a static seat for the child while permitting the user’s movement in a controlled manner, thereby allowing the user to maintain a correct posture.

[0024] These and other objectives, advantages and aspects of the invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the features in accordance with embodiments of the invention. The summary is not intended to limit the scope of the invention, which is defined solely by the claims attached hereto.

BRIEF DESCRIPTION OF DRAWINGS

[0025] The present invention will be better understood with reference to the following description taken in combination with the drawings. For the purpose of illustration, the drawings illustrate certain embodiments of the present invention. In the drawings, like numerals or alphabets indicate like elements throughout. It should be understood, however, that the invention is not limited to the precise arrangements, dimensions, and instruments shown. In the drawings:

[0026] FIG. 1 depicts a perspective view of an exemplary adjustable foldable posture correction mobility chair with adjustable thigh guard and adjustable footrest, according to an embodiment of the present invention;

[0027] FIG. 2 depicts a perspective view of an exemplary adjustable foldable posture correction mobility chair in a reclined position with adjustable footrest disclosed in FIG.l, according to an embodiment of the present invention;

[0028] FIG. 3 depicts an exploded view of an exemplary adjustable foldable posture correction mobility chair as disclosed in FIG.1 , according to an embodiment of the present invention;

[0029] FIG. 4 depicts a perspective view of an exemplary adjustable foldable posture correction mobility chair with adjustable thigh guard, adjustable shoulder guard, adjustable pommel, adjustable knee guard, adjustable headrest, adjustable footrest and a pair of big wheels, according to an embodiment of the present invention; [0030] FIG. 5 depicts a folded view of an exemplary arrangement of an adjustable foldable posture correction mobility chair, according to an embodiment of the present invention; and

[0031] FIG. 6 depicts a locking system for folding and unfolding of an adjustable foldable posture correction mobility chair, according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0032] Various exemplary embodiments of the present disclosure are described herein below with reference to the accompanying figures in the specification to enable a person of ordinary skilled in the art to make and use the present disclosure. As would be apparent to those of ordinary skilled in the art, after reading the present disclosure, various changes or modifications to the examples described herein can be made without departing from the scope and spirit of the present disclosure. As used herein, the word “exemplary” or “illustrative” means “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” or “illustrative” is not necessarily to be construed as preferred or advantageous over other implementations. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. Additionally, the specification order or hierarchy of steps in the methods disclosed herein is merely exemplary approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present disclosure. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and the present disclosure is not limited to the specific order or hierarchy presented unless expressly stated otherwise. Also, the terminology used herein is used for describing certain embodiments and is not intended to limit the disclosure.

[0033] The present invention discloses about an adjustable foldable posture correction mobility chair for improvising posture correction of a user suffering from abnormal conditions like cerebral palsy, down’s syndrome, spina bifida, brain injury, spinal cord injury or the like any person needs to correct his/her posture, wherein the chair has plurality of adjustable and compatible elements in multiple directions according to the individual needs of the user. Further the chair of the present invention is configured to be folded when not in use or during transportation.

[0034] According to several embodiments of the present invention as shown in FIGs. 1-6, adjustable foldable posture correction mobility chair (100) for improving posture correction of a user while acting as a mobility device and the chair is configured to facilitate quick and easy foldability. According to an exemplary embodiment of the present invention, the chair (100) comprises an adjustable backrest (112); a base (108); wherein the rectangular or “U” shaped base (108) can be adjustably attached with the backrest (112) through a ring shaped hinge bracket (137) moreover the hinge bracket (136 a-d) enables to provide depth and angle adjustment of the base (108) of the chair with respect to the backrest (112); as shown in FIG.3, at least a pair of adjustable and detachable thigh guard (116a-b) adjusted with the horizontal cross bar (156) attached with the two vertical bar (158a-b) of the backrest (112) provisions for attachment at different heights and different angle in relation with the backrest (112) as well as adjustably moved in and out with respect to the backrest (112) to adjust the width of the usable space of the chair (100); at least a pair of shoulder guard (118a-b) adjustable on the backrest (112) provisions for attachment at different height as well as well as adjustably moved in and out on the backrest (112) to adjust the width of the usable space of the chair (100); at least a pair of adjustable and foldable armrest (120a-b) having provisions for attachment at different heights as well as adjustably maintain the armrest (120a-b) in horizontal position to the ground with respect to the backrest (112) through the telescopic system (126) or the like ; two foldable front legs (102a-b); wherein upper end of the front legs (102a-b) attached with the front part of the base (108) with hinges (136a-b); an adjustable and detachable footrest (122), wherein the footrest (122) is height adjustable, reclinable, width adjustable and foldable and/or detachable; two back legs (102c-d), wherein upper end of back legs (102c-d) adjustably attached with base (108) through hinge (136c-d) with ring shaped hinge bracket (137) wherein a pair of foldable longitudinal crossbar connects the front legs (102a-b) and the back legs (102c-d) at a predetermined distance with ring shaped hinge bracket (137); a detachable substantially ‘U’ shaped cutout tray (not shown); wherein the cutout tray positioned over the armrests (120a-b), further the cutout tray has a provision to adjustably locked at a desired depth; an adjustable and detachable pommel (134), wherein the pommel (134) can be adjustably mounted along the depth of the base (108) of the chair (100); and an adjustable and detachable headrest (132), wherein the headrest (132) position and height is adjustable with respect to the backrest (112) of the chair; two pairs of adjustable detachable small wheels (106); a pair of adjustable detachable hand driven big wheels (138a-b) with locking or braking arrangement is provided with the chair (100) of the present invention.

[0035] According to an aspect of the invention, the adjustable foldable posture correction mobility chair (100) of the present invention is an appropriate prefabricated portable postural correction mobility device for improvising posture correction for improvising postural stability and establishment of a functional sitting position of a user.

[0036] According to an aspect of the present invention as shown in the FIG. 1, an adjustable foldable posture correction mobility chair (100) comprises: i. two front legs (102a-b) and two back legs (102c-d) foldably and lockingly attached to a platform (104) at their bottom ends, wherein the platform (104) is provided with wheels (106); ii. a base (108) foldably and lockingly attached to the top ends of the legs

(102a-d), wherein a locking system (110) attached with the platform (104) allows the legs (102a-d) to remain in sitting position when locked and in folding position of the chair (100) when the locking system (110) is released; iii. a backrest (112) adjustably attached with the base (108), wherein the backrest (112) is configured to move forward and backward with respect to the base (108) of the chair (100) to adjust the depth of the usable space of the base (108) of the chair (100), whereby a backrest telescopic system (114) is configured to adjustably connect the backrest (112) with the base (108) of the chair (100) to recline the backrest (112) at desired reclination angle ranging from 80-150 degree with respect to the base (108) with a gradual reclination locking at multiple steps, while completely releasing the backrest telescopic system (114) allows the backrest (112) to get folded over the base (108); iv. a pair of laterally adjustable thigh guards (116a-b) detachably attached to the backrest (112) of the chair (100), wherein each of the thigh guards (116a-b) is configured to independently move “in and out along the width”, “up and down along the height” and are provided with angle adjustment provisions to adjust width of the usable space of the backrest (112) and the base (108) of the chair (100) while allowing the thigh guards (116a-b) to remain at desired angle with the base (108) of the chair (100); and v. a pair of foldable, reclinable and height adjustable armrests (120a-b) detachably attached to the backrest (112) to provide support to the user of any age group at desired inclination, wherein the armrests (120a-b) are configured to detachably attach a cutout tray (not shown) to remain in horizontal position with respect to the ground irrespective of inclination of the backrest (112); whereby detaching the thigh guards (116a-b) and unlocking the legs (102a-d) from the base (108) and the platform (104) allows the platform (104), the legs (102a- d), the base (108) and the backrest (112) to rest in a substantial parallel configuration to each other to fold the chair (100) to a height of 8-12 inches.

[0037] According to another aspect of the present invention as shown in the FIG. 1, the platform (104) is configured to detachably and adjustably attach a footrest (122) with a footrest telescopic system (124) for height adjustment, angle adjustment and folding of the footrest (122).

[0038] According to another aspect of the present invention as shown in the FIG. 1, the armrests (120a-b) are configured to attach at different heights along the height of the backrest (112) with a armrest telescopic system (126) to adjustably maintain the armrests (120a-b) in horizontal position with respect to the ground irrespective of inclination of the backrest (112), whereby releasing the armrest telescopic system (126) completely allows each of the armrests (120a-b) to independently align vertically with the backrest (112) thereby allowing the user to shift sideways to a bed from the chair (100).

[0039] According to another aspect of the present invention as shown in the FIG. 4, the front legs (102a-b) are provided with a hinge (not shown) and a lock (130) to releasably attach an adjustable knee guard (128).

[0040] According to another aspect of the present invention as shown in the FIG. 4, the backrest (112) is configured to detachably attach a height adjustable headrest (132).

[0041] According to another aspect of the present invention as shown in the FIG. 4, the base (108) is configured to detachably and adjustably attach a pommel (134) with the base (108) at desired depth of the base (108).

[0042] According to another aspect of the present invention as shown in the FIG. 4, an adjustable foldable posture correction mobility chair (100) comprises: i. two front legs (102a-b) and two back legs (102c-d) foldably and lockingly attached to a platform (104) at their bottom ends, wherein the platform (104) is provided with wheels (106); ii. a base (108) foldably and lockingly attached to the top ends of the legs (102a-d) with hinges (136a-d), wherein a locking system (110) attached with the platform (104) allows the legs (102a-d) to remain in sitting position when locked and in folding position of the chair (100) when the locking system (110) is released; iii. a backrest (112) adjustably attached with the base (108), wherein the backrest (112) is configured to move forward and backward with respect to the base (108) of the chair (100) to adjust the depth of the usable space of the base (108) of the chair (100), whereby a backrest telescopic system (114) is configured to adjustably connect the backrest (112) with the base (108) of the chair (100) to recline the backrest (112) at desired reclination angle ranging from 80-150 degree with respect to the base (108) with a gradual reclination locking at every 10 degrees, while completely releasing the backrest telescopic system (114) allows the backrest (112) to get folded over the base (108); iv. a pair of laterally adjustable thigh guards (116a-b) and a pair of laterally adjustable shoulder guards (118a-b) detachably attached to the backrest (112) of the chair (100), wherein each of the thigh guards (116a-b) and the shoulder guards (118a-b) is configured to independently move “in and out along the width”, “up and down along the height” and are provided with angle adjustment provisions to adjust width and height of the usable space of the backrest (112) and width of the base (108) of the chair (100) while allowing the shoulder guards (116a-b) and the thigh guards (116a-b) to remain at desired angle with the base (108) of the chair (100); v. a pair of foldable, reclinable and height adjustable armrests (120a-b) configured to detachably attach a cutout tray (not shown), wherein the armrests (120a-b) are configured to attach at different heights along the height of the backrest (112) with a armrest telescopic system (126) to adjustably maintain the armrests (120a-b) in horizontal position with respect to the ground irrespective of inclination of the backrest (112), whereby releasing the armrest telescopic system (126) completely allows each of the armrests (120a-b) to independently align vertically with the backrest (112) thereby allowing the user to shift sideways to a bed from the chair (100); vi. a foldable, adjustable and reclinable footrest (122) detachably attached to the platform (104), wherein the footrest (122) comprises a footrest telescopic system (124) for height adjustment, angle adjustment and folding of the footrest (122); and vii. a detachable and adjustable handle (160) telescopically mounted onto the backrest (112), wherein the handle is width and height adjustable; whereby detaching the thigh guards (116a-b), the shoulder guards (118a-b) and the footrest (122) and unlocking the legs (102a-d) from the base (108) by releasing the locking system (110) from the platform (104) allows the platform (104), the legs (102a- d), the base (108) and the backrest (112) to fold and rest in a substantial parallel configuration to each other to a height of 8-12 inches.

[0043] According to another aspect of the present invention as shown in the FIG. 4, the chair (100) is configured to detachably attach a pair of big wheels (138a-b) with lock and brake arrangement.

[0044] According to another aspect of the present invention as shown in the FIGs. 5-6, the locking system (110) comprises a top ring (140) fixedly connected to a bottom ring (142) and a spring-loaded locking mechanism (144) fixedly attach to the top ring (140), whereby an elongated member (146) passes through the bottom ring (142), the elongated member (146) is hinged to a crossbar (148) of the platform (104) at one end, while, a cross bar (150) fixedly connected to the back legs (102c-d) of the chair (100) passes through the top ring (140) to lock rotation of the cross bar (150) by the spring- loaded locking mechanism (144) to prevent folding of the chair (100), whereas on release of the lock mechanism (144), the chair (100) is allowed to get folded.

[0045] According to another aspect of the present invention as shown in the FIG. 5, the elongated member (146) comprises one or more wheels (152) attached to other end of the elongated member (146) to assist mobility of the chair (100) in folded condition.

[0046] According to an embodiment of the present invention as shown in the FIG. 1, the chair (100) of the present invention comprises a reclinable base (108), wherein the usable space of the base (108) is adjusted by a pair of thigh guards (116a-b) that are attached to a cross bar (154) of the backrest (112). wherein, the thigh guards (116a- b) are adjustable along the width of the base of the chair (100), thereby allowing to adjust width of the usable space of the base of the chair (100) to confine the thigh region of the user in a correct position. Further, as shown in the FIG. 3-4, the backrest (112) comprises a pair of shoulder guards (118a-b) that are attached to a cross bar ( 156) of the backrest (112), wherein the shoulder guards (118a-b) are adjustable along the width of the backrest (112) of the chair (100), thereby allowing to adjust width of the usable space on the backrest (112) of the chair (100) to confine the shoulder of the user in a correct position. According to another exemplary embodiment of the present invention, the chair (100) optionally comprises a pair of trunk guards (not shown), however, the shoulder guards (118a-b) can be height adjustably used as a trunk support to provide desired posture correction to the user without departing from the scope and the spirit of the present invention. According to another exemplary embodiment of the present invention, the backrest (112) of the chair (100) is configured to be adjusted along forward and backward direction with respect to the base (108) of the chair (100) to adjust the depth of the usable space of the base (108) of the chair (100), thereby allowing to adjust the depth and width of the usable space of the chair (100) to confine the user in a predetermined correct posture. The easy depth and width adjustment feature of the chair (100) makes it to be configured to be used for several size of the users of all age group.

[0047] According to another embodiment of the present invention as shown in the FIG.3, the reclinable base (108) comprises an L-shaped bracket (162) with 2-3 slots attached with the back legs (102c-d) to allow the base (108) to decline by 5-15 degrees at posterior end of the base (108).

[0048] According to another embodiment of the present invention, the base (108) is configured to allow use of a toilet pan (not shown) that is attached to lower portion of the base (108) of the chair (100).

[0049] According to another embodiment of the present invention as shown in the FIGs. 1-4, the chair (100) of the present invention comprises a foldable, adjustable and reclinable footrest (122) attached to the platform (104) of the chair (100), wherein the footrest (122) comprises a telescopic system (124) for height and angle adjustment and folding of the footrest (122). Additionally, the footrest (122) is height adjustable based on the need of the user, further it is detached or folded when not in use. The footrest (122) without limitation is a single piece footrest (122) as shown in FIG. 4 or a double piece footrest (122) having independent adjustability of the footrest (122) for each foot of the user as shown in FIGs. 1-3. Further the footrest (122) is provided with a back support and provision for using straps to securely hold each of the foot of the user for posture correction.

[0050] According to another exemplary embodiment of the present invention, the chair (100) is configured to use straps to hold trunk, thighs, legs, head in a desired position for quick and effective posture correction.

[0051] According to another embodiment of the present invention as shown in the FIGs. 1-4, the chair (100) of the present invention comprises a pair of foldable, reclinable and height adjustable armrest (120a-b) to provide support to the user of any age group at desired inclination. Further the armrests are configured to detachably attach a cutout tray (not shown). The armrest telescopic system (126) allows to maintain the cutout tray in a parallel position with respect to the ground so as to use the cutout tray for keeping objects such as water bottle, food or books without sliding while the backrest (112) is in inclined position as shown in FIG. 2.

[0052] According to another embodiment of the present invention as shown in FIG. 5, the chair (100) is foldable, wherein a folding and reclination mechanism is controlled by a backrest telescopic system (114) that is configured to adjustably connect the backrest (112) with the base (108) of the chair (100) so that the reclination angle of the backrest (112) can be adjusted with respect to the base (100). In an exemplary embodiment a telescopic folding arrangement is used to recline the backrest (112) at a desired angle with respect to the base (108) while completely releasing the telescopic system (114) allows the backrest (112) to get folded over the base (108).

[0053] According to another embodiment of the present invention as shown in FIGs. 1-5, the chair (100) comprises a detachable and adjustable handle (160) telescopically mounted onto the top portion of the two vertical bar (158a-b) of the backrest (112), wherein the handle is width and height adjustable to allows a care giver with proper ergonomics to manage the mobility of the chair (100), further the user can use the handle with proper adjustment to push or pull the chair (100) for effective training of the user’s mobility, wherein the chair (100) acts as a support and guide for mobility in addition to the posture correction applications of the chair (100) for the user.

[0054] Further embodiments of the invention along with detailed explanation of various embodiments and further illustrations shall be explained in detail in the complete specification to follow. The aforesaid description is enabled to capture the nature of the invention. It is to be noted, however, that the aforesaid description illustrates only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to equally effective embodiments.

Claims

We Claim: . An adjustable foldable posture correction mobility chair (100) comprises: i. two front legs (102a-b) and two back legs (102c-d) foldably and lockingly attached to a platform (104) at their bottom ends, wherein the platform (104) is provided with wheels (106); ii. a base (108) foldably and lockingly attached to the top ends of the legs (102a-d), wherein a locking system (110) attached with the platform (104) allows the legs (102a-d) to remain in sitting position when locked and in folding position of the chair (100) when the locking system (110) is released; iii. a backrest (112) adjustably attached with the base (108), wherein the backrest (112) is configured to move forward and backward with respect to the base (108) of the chair (100) to adjust the depth of the usable space of the base (108) of the chair (100), whereby a backrest telescopic system (114) is configured to adjustably connect the backrest (112) with the base (108) of the chair (100) to recline the backrest (112) at desired reclination angle ranging from 80-150 degree with respect to the base (108) with a gradual reclination locking at multiple steps, while completely releasing the backrest telescopic system (114) allows the backrest (112) to get folded over the base (108); iv. a pair of laterally adjustable thigh guards (116a-b) detachably attached to the backrest (112) of the chair (100), wherein each of the thigh guards (116a-b) is configured to independently move “in and out along the width”, “up and down along the height” and are provided with angle adjustment provisions to adjust width of the usable space of the backrest (112) and the base (108) of the chair (100) while allowing the thigh guards (116a-b) to remain at desired angle with the base (108) of the chair (100); and v. a pair of foldable, reclinable and height adjustable armrests (120a-b) detachably attached to the backrest (112) to provide support to the user of any age group at desired inclination, wherein the armrests (120a-b) are configured to detachably attach a cutout tray (not shown) to remain in horizontal position with respect to the ground irrespective of inclination of the backrest (112); whereby detaching the thigh guards (116a-b) and unlocking the legs (102a-d) from the base (108) and the platform (104) allows the platform (104), the legs (102a-d), the base (108) and the backrest (112) to rest in a substantial parallel configuration to each other to fold the chair (100) to a height of 8-12 inches. The chair (100) as claimed in claim 1, wherein the platform (104) is configured to detachably and adjustably attach a footrest (122) with a footrest telescopic system (124) for height adjustment, angle adjustment and folding of the footrest (122). The chair (100) as claimed in claim 1, wherein the armrests (120a-b) are configured to attach at different heights along the height of the backrest (112) with a armrest telescopic system (126) to adjustably maintain the armrests (120a-b) in horizontal position with respect to the ground irrespective of inclination of the backrest (112), whereby releasing the armrest telescopic system (126) completely allows each of the armrests (120a-b) to independently align vertically with the backrest (112) thereby allowing the user to shift sideways to a bed from the chair (100). The chair (100) as claimed in claim 1, wherein the front legs (102a-b) are provided with a hinge and a lock (130) to releasably attach an adjustable knee guard (128). The chair (100) as claimed in claim 1, wherein the backrest (112) is configured to detachably attach a height adjustable headrest (132). The chair (100) as claimed in claim 1, wherein the base (108) is configured to detachably and adjustably attach a pommel (134) with the base (108) at desired depth of the base (108). An adjustable foldable posture correction mobility chair (100) comprises: i. two front legs (102a-b) and two back legs (102c-d) foldably and lockingly attached to a platform (104) at their bottom ends, wherein the platform (104) is provided with wheels (106); ii. a reclinable base (108) foldably and lockingly attached to the top ends of the legs (102a-d) with hinges (136a-d), wherein a locking system (110) attached with the platform (104) allows the legs (102a-d) to remain in sitting position when locked and in folding position of the chair (100) when the locking system (110) is released; iii. a backrest (112) adjustably attached with the base (108), wherein the backrest (112) is configured to move forward and backward with respect to the base (108) of the chair (100) to adjust the depth of the usable space of the base (108) of the chair (100), whereby a backrest telescopic system (114) is configured to adjustably connect the backrest (112) with the base (108) of the chair (100) to recline the backrest (112) at desired reclination angle ranging from 80-150 degree with respect to the base (108) with a gradual reclination locking at every 10 degrees, while completely releasing the backrest telescopic system (114) allows the backrest (112) to get folded over the base (108); iv. a pair of laterally adjustable thigh guards (116a-b) and a pair of laterally adjustable shoulder guards (118a-b) detachably attached to the backrest (112) of the chair (100), wherein each of the thigh guards (116a-b) and the shoulder guards (118a-b) is configured to independently move “in and out along the width”, “up and down along the height” and are provided with angle adjustment provisions to adjust width and height of the usable space of the backrest (112) and width of the base (108) of the chair (100) while allowing the shoulder guards (116a-b) and the thigh guards (116a-b) to remain at desired angle with the base (108) of the chair (100); v. a pair of foldable, reclinable and height adjustable armrests (120a-b) configured to detachably attach a cutout tray (not shown), wherein the armrests (120a-b) are configured to attach at different heights along the height of the backrest (112) with a armrest telescopic system (126) to adjustably maintain the armrests (120a- b) in horizontal position with respect to the ground irrespective of inclination of the backrest (112), whereby releasing the armrest telescopic system (126) completely allows each of the armrests (120a-b) to independently align vertically with the backrest (112) thereby allowing the user to shift sideways to a bed from the chair (100); vi. a foldable, adjustable and reclinable footrest (122) detachably attached to the platform (104), wherein the footrest (122) comprises a footrest telescopic system (124) for height adjustment, angle adjustment and folding of the footrest (122); and vii. a detachable and adjustable handle (160) telescopically mounted onto the backrest (112), wherein the handle is width and height adjustable; whereby detaching the thigh guards (116a-b), the shoulder guards (118a- b) and the footrest (122) and unlocking the legs (102a-d) from the base (108) by releasing the locking system (110) from the platform (104) allows the platform (104), the legs (102a-d), the base (108) and the backrest (112) to fold and rest in a substantial parallel configuration to each other to a height of 8-12 inches.. The chair (100) as claimed in claim 7, wherein the reclinable base (108) comprises an L-shaped bracket (162) with 2-3 slots attached with the back legs (102c-d) to allow the base (108) to decline by 5-15 degrees at posterior end of the base (108).. The chair (100) as claimed in claim 7, wherein the base (108) is configured to allow use of a toilet pan (not shown) that is attached to lower portion of the base (108). 0. The chair (100) as claimed in claim 7, wherein the chair (100) is configured to detachably attach a pair of big wheels (138a-b) with lock and brake arrangement. The chair (100) as claimed in claim 7, wherein the locking system (110) comprises a top ring ( 140) fixedly connected to a bottom ring (142) and a spring-loaded locking mechanism (144) fixedly attach to the top ring (140), whereby an elongated member (146) passes through the bottom ring (142), the elongated member (146) is hinged to a crossbar (148) of the platform (104) at one end, while, a cross bar (150) fixedly connected to the back legs (102c-d) of the chair (100) passes through the top ring (140) to lock rotation of the cross bar (150) by the spring-loaded locking mechanism (144) to prevent folding of the chair (100), whereas on release of the lock mechanism (144), the chair (100) is allowed to get folded. The elongated member (146) as claimed in claim 11, wherein the elongated member (146) comprises one or more wheels (152) attached to other end of the elongated member (146) to assist mobility of the chair (100) in folded condition.