INVACARE MATRX PB DEEP BACK BY MOTION CONCEPTS
The Matrx PB Deep Back Wheelchair Backrest by Motion Concepts is a contoured wheelchair positioning backrest designed to provide enhanced midline support, postural positioning, and lateral trunk support. The PB Deep features a 7-inch contour, compared with the 5-inch contour of the standard Matrx PB Back, providing additional depth for users who require more enveloping support.
MATRX PB DEEP BACK FOR ENHANCED LATERAL SUPPORT Product FEATURES
Built with 7-inch deep lateral side contours that deliver maximum mid-thoracic stability and trunk support for users requiring extra posture control.
Features a pre-molded structural shell designed to cradle the spine, distribute pressure evenly, and prevent unwanted lateral leaning.
Interfaces with hardware systems that permit independent adjustments to backrest height, depth, angle, and rotation directly on the frame. frame.
Comes with a removable foam pad that can be positioned to offer customized sacral and lower back alignment.
Features a fast-release design allowing caregivers to easily detach the backrest from the wheelchair frame for transport and storage.
Includes a protective interior liner that prevents moisture and liquid penetration, protecting the internal foam padding from spills.
MATRX PB DEEP WHEELCHAIR BACKREST BY MOTION CONCEPTS FOR TRUNK ALIGNMENT Product Specifications
MOTION CONCEPTS MATRX PB DEEP POSTURAL BACKREST FOR ADVANCED SEATING SUPPORT Product DIMENSION AND SIZES
MATRX PB DEEP BACK BY MOTION CONCEPTS DOWNLOADS
MATRX PB DEEP BACK BROCHURE MATRX PB DEEP BACK USER MANUAL
MATRX PB DEEP BACK SIZE SPECIFICATION
MATRX PB DEEP BACK BY MOTION CONCEPTS VIDEOS
Matrx PB Deep Back Buyer’s Guide
The Matrx PB Deep Back by Motion Concepts is a specialized posture-alignment wheelchair backrest engineered for users requiring enhanced mid-thoracic stability and maximum lateral trunk support. Featuring an extended 7-inch contour depth—compared to the standard 5-inch depth—this lightweight ABS contoured shell envelops the torso to prevent unwanted leaning, reduce postural fatigue, and promote optimal spinal alignment for active manual and power wheelchair users.
Extended 7-Inch Deep Lateral Contours
Designed with deep 7-inch side contours, the Matrx PB Deep Back provides superior lateral enclosure to stabilize users with moderate to high trunk positioning needs. The extended depth helps keep the spine centered and upright without restricting essential upper-extremity movement and arm propulsion.
Anatomical Contoured ABS Back Shell
Built from a lightweight yet highly durable pre-molded ABS structural shell, the backrest offers consistent midline stability and structural integrity. The contoured frame cradles the torso, distributes back pressure evenly across the surface area, and helps prevent lateral leaning and fatigue during extended sitting.
EasySet Adjustable Mounting Hardware
Outfitted with quick-release EasySet mounting hardware, the backrest allows full customization of positioning directly on the wheelchair frame. Clinicians and caregivers can make independent adjustments to height, depth (up to 4 inches), angle (40-degree range), and rotation—even while the user remains seated in the chair.
High-Resiliency Molded Foam & Moisture-Resistant Cover
The interior features high-resiliency molded foam wrapped over the edges of the rigid shell to protect sensitive skin and bony prominences from contact pressure. The outer cover is crafted from a breathable, moisture-resistant fabric that manages temperature buildup, reduces friction, and easily zips off for cleaning.
Adjustable Sacral & Lumbar Support Insert
Every Matrx PB Deep Back includes an adjustable foam lumbar pad that can be repositioned or removed inside the shell to accommodate individual lordotic curves. This targeted support helps maintain proper pelvic alignment, decreases sacral slouching, and maximizes lower back comfort.
Integrated Headrest Mounting Interface
For users requiring head and neck alignment assistance, the back shell comes pre-equipped with a built-in heavy-duty headrest attachment plate. This allows smooth, direct integration with a wide variety of headrest hardware options without requiring complex aftermarket brackets.
Quick-Release Portability Mechanism
The pin-style quick-release design allows the backrest to be effortlessly detached from the wheelchair frame in seconds. This ensures convenient folding, vehicle transfer, and transport for users on the go without losing saved height, angle, or depth positioning settings.
Matrx PB Deep Back Review
The Matrx PB Deep Back by Motion Concepts is an exceptional positioning choice for individuals seeking robust trunk enclosure, customized spinal support, and lightweight durability. Combining an extended 7-inch depth profile, high-resiliency foam, and fully adjustable quick-release hardware, it delivers reliable clinical support, postural alignment, and everyday comfort.
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Warranty Includes
- 24 months of coverage from the date of purchase
- Coverage for qualifying defects in materials and workmanship
- Repair or replacement at Motion Concepts' option
- Warranty service processed through the authorized dealer
