Anti-spasticity hand weight-bearing orthosis with internal honeycomb support structure

Abstract

This invention relates to a tension-resistant hand support device with an internal honeycomb support structure. This invention integrates the joint centralization principle of Dynamic Neural Stability Theory (DNS) with the key point control technology of Neurodevelopmental Therapy (NDT), producing a one-piece support body (10) through digital modeling and layered manufacturing technology. The internal filling area of ​​the support body (10) has multiple continuously arranged honeycomb-shaped internal support structures (11) (including a three-dimensional honeycomb mesh), enabling the device to maintain a smooth, skin-friendly appearance while possessing high load-bearing rigidity and multi-dimensional stress dispersion characteristics. For high-tension cases affected by abnormal posture, resulting in strong hand flexion and thumb adduction, the support body (10) has a five-finger joint extension positioning structure and a thumb abduction positioning structure (12) on the thumb side. In addition, this creation uses thermoplastic material combined with an internal three-dimensional honeycomb pore design, which can be locally heated by a heat source (such as a hot air gun), providing ample three-dimensional deformation and buffer space for secondary shaping, and is equipped with a multi-point fixing system (13) set on the support body (10) to ensure dynamic fit and precise alignment during long-term weight-bearing training, effectively inducing the synergistic contraction of deep stabilizing muscle groups.

Claims

1. A tension-resistant hand support device with an internal honeycomb support structure, comprising: a support body (10) integrally molded according to the user's anatomical shape, the support body (10) including a smooth contact surface; a honeycomb-shaped internal support structure (11) formed in the internal filling area of ​​the support body (10) and including a plurality of continuously arranged honeycomb structures; a five-finger joint extension positioning structure disposed on the support body (10) to guide the five fingers to maintain an extension state; a thumb abduction positioning structure (12) disposed on the thumb side of the support body (10) and conforming to the physiological angle of thumb abduction to reconstruct the web space and make the contact surface form a continuous load-bearing plane; and a multi-point fixation system (13) disposed on the support body (10) to ensure dynamic fit between the hand and the support body (10); wherein, The multi-point fixing system (13) is a hook and loop fastener structure, including at least one ring surface component with adhesive backing and at least one corresponding hook surface component. The ring surface component is fixed to a preset outer position of the support body (10) by the adhesive backing, and the hook surface components are fastened and bound together.

2. The tensile hand support assistive device with an internal honeycomb support structure as described in claim 1, wherein the support body (10) is made of a polymer material with thermoplastic properties through a lamination manufacturing technology, the material including but not limited to: polylactic acid (PLA), polyethylene terephthalate-polyethylene glycol (PETG), thermoplastic polyurethane elastomer (TPU), polycaprolactone (PCL) or nylon; the honeycomb internal support structure (11) includes a two-dimensional vertically stacked honeycomb pattern or a three-dimensional honeycomb grid structure with isotropic force characteristics, which has a preset pore ratio, providing a buffer space for the material to have multi-dimensional displacement and deformation after being heated, so as to allow for local fine-tuning from a biomechanical perspective in clinical practice.

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