Description:FIELD OF THE INVENTION
The present invention relates to ergonomic furniture and orthopedic seating systems. More particularly, it concerns an adjustable orthopedic chair that integrates foot stoppers with controls (1), an adjustable laptop stand (2), a stable base (3), a rotating spindle mechanism (4), an ergonomic seat design (5), lumbar support (6), adjustable armrests (7), a cushioned headrest (8), and an adjustable backrest (9). The invention is designed to promote active lower-limb movement, maintain spinal alignment, and reduce musculoskeletal strain for individuals engaged in prolonged seated work.
BACKGROUND OF THE INVENTION
Prolonged sitting at desks, computers and workstations has become the norm for professionals in offices, laboratories and home workspaces. Conventional office chairs are primarily designed for passive sitting comfort, using fixed or semi-adjustable lumbar pads and armrests. While such designs provide some relief compared to rigid seating, they do not actively address the physiological issues caused by extended immobility, such as reduced blood circulation in the lower limbs, compression of spinal nerves, poor posture and muscle fatigue.
Existing ergonomic chairs also lack integrated features that allow a user to maintain leg activity while working, or to conveniently position laptops and mobile devices at eye level. Users must typically combine separate products—chairs, laptop stands, footrests and keyboard controls—to achieve a comparable setup. This disjointed arrangement discourages consistent use, consumes workspace, and fails to deliver coordinated ergonomic benefits.
As a result, many individuals experience chronic low-back pain, cervical tension and other musculoskeletal problems despite using “ergonomic” seating. There is therefore a need for a single, integrated seating system that not only provides adjustable support for the spine, arms and neck but also encourages active lower-limb movement and proper placement of computing devices to reduce cumulative strain.
The present invention addresses these long-standing deficiencies by integrating, in one unit, a stable base (3), rotating spindle mechanism (4), contoured seat (5), adjustable backrest (9) with lumbar support (6), foot stoppers with integrated controls (1), an adjustable laptop stand (2), adjustable armrests (7) and a cushioned headrest (8). This combination delivers a comprehensive solution for preventing and relieving back pain associated with prolonged sitting.
SUMMARY OF THE INVENTION
The invention provides an adjustable orthopedic chair designed to mitigate back pain and discomfort caused by prolonged sitting. The chair incorporates foot stoppers with integrated controls (1), enabling users to perform frequently used keyboard actions with their feet, encouraging continuous leg movement that improves circulation and reduces pressure on lumbar nerves.
An adjustable laptop stand (2) allows the screen to be set between -30° and 15°, aligning with the user’s eye level to reduce neck strain. Ergonomic lumbar support (6), adjustable armrests (7), a cushioned headrest (8), and a reclining adjustable backrest (9) up to 45° ensure proper spinal alignment and redistribute body weight, while a stable non-wheeled base (3) and rotating spindle mechanism (4) provide a secure and adjustable seating experience.
These components work together to create an active-seating environment where the ergonomic seat design (5) supports the thighs and pelvis, the foot stoppers (1) maintain leg movement, and the laptop stand (2) positions equipment correctly.
This comprehensive design actively addresses root causes of back pain rather than only providing passive support, making it a uniquely effective solution for sedentary professionals.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 illustrates a perspective view of the adjustable orthopedic chair showing the major components of the invention.
This drawing is intended to illustrate the arrangement of parts and their interaction but is not limited to the precise configuration shown.
DETAILED DESCRIPTION OF THE INVENTION
The adjustable orthopedic chair is constructed on a stable non-wheeled base (3) designed to provide firm support and prevent unintentional movement while the user is seated. The base (3) may be made from metal or reinforced composite materials to achieve both high load-bearing capacity and aesthetic appeal. Non-slip pads may be attached to the underside of the base (3) to ensure friction and stability on different flooring types.
A rotating spindle mechanism (4) connects the seat assembly to the base (3). This spindle (4) allows the seat to rotate smoothly and to adjust vertically to accommodate users of various heights. The mechanism (4) uses a gas-spring or screw-jack arrangement controlled by a simple lever or knob so that adjustments can be made while seated without tools.
Above the spindle (4) sits the ergonomic seat design (5). The seat (5) is contoured to support the thighs and pelvis, distributing the user’s body weight evenly and reducing pressure points on the ischial tuberosities. High-density foam or a gel-infused cushion may be used to increase comfort during extended sitting. The front edge of the seat (5) is gently sloped downward to reduce pressure behind the knees and improve circulation.
Behind the seat (5) is the adjustable backrest (9), which can recline up to approximately 45° from the upright position. The backrest (9) is shaped to support the thoracic and lumbar spine simultaneously and is equipped with an integrated lumbar support (6). This lumbar support (6) can be moved vertically and adjusted in depth to maintain the natural lordotic curve of the lower back, redistributing spinal load onto surrounding musculature.
Two-foot stoppers with integrated controls (1) are mounted at the front lower portion of the chair, anchored to the base (3). Each foot stopper (1) includes a pedal-like surface with a spring-loaded mechanism that provides tactile feedback similar to a vehicle pedal. The integrated controls in the foot stoppers (1) are mapped to frequently used keyboard functions such as the space bar, enter, or scrolling actions. This feature allows the user to perform certain repetitive computer tasks with their feet, promoting active leg movement and preventing prolonged static posture.
The foot stoppers (1) are positioned at an ergonomically optimal angle and distance so that the user’s legs remain comfortably bent at approximately 90° while operating them. This intermittent movement enhances venous return from the lower limbs and reduces pressure on lumbar nerve roots.
An adjustable laptop stand (2) is mounted to one side of the chair. This stand (2) includes a pivot and tilt mechanism enabling angle adjustment from –30° to +15°. It can also be folded or slid under the seat (5) when not required. The stand (2) holds laptops or tablets securely and positions them at the user’s eye level to reduce neck flexion and visual fatigue.
Height-adjustable armrests (7) are provided on both sides of the seat (5). The armrests (7) can be raised, lowered or rotated inward/outward to match the user’s shoulder width and desk height, reducing shoulder and upper-back strain. Soft padding on the top of each armrest (7) provides comfortable support for the forearms during typing or reading.
A cushioned headrest (8) extends above the backrest (9). This headrest (8) supports the cervical spine during both active work and short breaks. It can be adjusted in height and tilt to accommodate different users. By supporting the head and neck, the headrest (8) reduces tension in the trapezius and cervical muscles.
The integration of the base (3), spindle mechanism (4), seat (5), backrest (9), lumbar support (6), foot stoppers (1), laptop stand (2), armrests (7) and headrest (8) create a complete active-seating environment. Each component is designed to be modular and user-adjustable, allowing customisation for different body types and work scenarios.
All structural components may be fabricated from lightweight alloys or reinforced polymer composites, while cushions and pads are made from breathable, antimicrobial fabric to enhance comfort and hygiene. Electrical or wireless connections from the foot stoppers (1) to the user’s computer can be via Bluetooth or USB, ensuring easy integration with existing workstations.
The chair promotes a combination of passive ergonomic support and active movement. The ergonomic seat (5), lumbar support (6), backrest (9) and headrest (8) provide correct alignment, while the foot stoppers (1) and laptop stand (2) actively encourage posture changes, blood circulation and proper visual ergonomics.
During use, the user sits on the seat (5) with the feet resting lightly on the foot stoppers (1). As typing continues on the laptop stand (2), routine keyboard actions can be triggered by the feet, keeping leg muscles active. The lumbar support (6) maintains spinal alignment while the backrest (9) can be reclined periodically to relieve pressure on intervertebral discs. The headrest (8) and armrests (7) provide upper-body support throughout.
Figure 1 illustrates a perspective view of the adjustable orthopedic chair showing all major components of the invention in their functional arrangement. In this view, the foot stoppers with integrated controls (1) are positioned at the lower front portion of the chair to enable active leg movement, while the adjustable laptop stand (2) is mounted at one side to hold a computer at an ergonomic height. The stable base (3) supports the entire structure and prevents unintended movement, and a rotating spindle mechanism (4) connects the ergonomic seat (5) to the base (3) to allow height and rotation adjustment. The ergonomic seat design (5) is contoured for even weight distribution, and an integrated lumbar support (6) is housed within the adjustable backrest (9) to maintain the natural curve of the spine. Adjustable armrests (7) are arranged on either side of the seat (5) to support the forearms, while a cushioned headrest (8) extends from the top of the backrest (9) to support the cervical region. The adjustable backrest (9) reclines up to approximately 45 degrees to provide comfort and proper spinal alignment. The drawing demonstrates how all these elements cooperate within a single integrated seating system, though the invention is not limited to the precise configuration shown.
This configuration directly addresses the root causes of work-related back pain: static posture, lumbar nerve compression, poor circulation, and neck flexion. By embedding active controls in the foot stoppers (1) and providing a highly adjustable support system (2–9), the invention enables preventive care rather than merely offering passive cushioning.
, C , C , Claims:1. An adjustable orthopedic chair for relieving back pain comprising:
a stable non-wheeled base (3);
a rotating spindle mechanism (4) connecting the ergonomic seat (5) to the base (3);
an ergonomic seat design (5) contoured for even weight distribution;
an adjustable backrest (9) with integrated lumbar support (6) configured to recline up to 45°;
two foot stoppers with integrated controls (1) positioned at the base (3), each equipped with integrated controls mapped to frequently used keyboard functions to promote continuous leg movement;
an adjustable laptop stand (2) mounted to the chair configured to tilt between -30° and 15° and fold when not in use;
height-adjustable armrests (7); and
a cushioned headrest (8) for cervical support.
2. The chair as claimed in claim 1, wherein the foot stoppers (1) improve blood circulation and reduce lumbar nerve compression by encouraging active leg movement.
3. The chair as claimed in claim 1, wherein the adjustable laptop stand (2) aligns the screen at eye level to reduce neck strain.
4. The chair as claimed in claim 1, wherein the lumbar support (6) redistributes load from spinal joints to muscles to alleviate back pain.
5. The chair as claimed in claim 1, wherein the rotating spindle mechanism (4) allows smooth adjustment of seat height and orientation.
6. A method for relieving back pain during prolonged sitting comprising:
providing a stable non-wheeled base (3) with an ergonomic seat (5), adjustable backrest (9) with lumbar support (6), foot stoppers with integrated controls (1), an adjustable laptop stand (2), height-adjustable armrests (7) and a cushioned headrest (8);
adjusting the backrest (9), lumbar support (6), armrests (7) and laptop stand (2) to fit the user’s ergonomic requirements;
operating the foot stoppers (1) with the feet during work to perform frequently used keyboard functions and promote leg movement; and
using the chair in this configuration to improve circulation, reduce spinal strain and prevent back pain.
7. The method as claimed in claim 6, wherein the foot stoppers (1) are spring-loaded to provide tactile feedback similar to pedals.
8. The method as claimed in claim 6, wherein the adjustable laptop stand (2) folds when not required to reduce space usage.
9. The method as claimed in claim 6, wherein the lumbar support (6) maintains the natural curve of the lower spine.
 
10. The method as claimed in claim 6, wherein combined active leg movement using foot stoppers (1) and adjustable support components (2, 3, 4, 5, 6, 7, 8, 9) provide preventive care against back pain rather than only passive cushioning.