Ergonomic Spinal Adjustment Instrument with Resilient Pads
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Solution Overview
Problem
Chiropractors experience significant stress and strain on their hands due to frequent manual manipulations, leading to conditions like cramping and arthritis, as they perform numerous spinal adjustments daily.
Innovation Solution
A spinal adjustment apparatus with a rigid frame and resilient pads that allows for ergonomic hand placement, reducing hand stress by distributing the force of manipulation and providing cushioning, while allowing for precise alignment with the spine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If chiropractors perform manual manipulations with their hands, then spinal adjustments can be applied, but significant stress and strain are placed on the chiropractor's hands leading to cramping and arthritis
Solution Approach 1:
The patent introduces a chiropractic adjusting instrument as an intermediary device between the chiropractor's hand and the patient's spine. The instrument includes a handle that fits in the chiropractor's hand and a contact surface that applies force to the spine, thereby mediating the interaction and reducing direct stress on the hand while maintaining adjustment effectiveness
Solution Approach 2:
The instrument is segmented into distinct functional components: a handle portion for hand placement, a force application surface for spinal contact, and a structural body connecting them. This segmentation allows the hand to interact only with the handle design (which can be ergonomically optimized) while the force transmission is handled by the instrument structure, protecting the hand from direct strain
2Force
If greater force is applied during manipulation, then adjustment efficacy is enhanced, but hand stress and strain increase
Solution Approach 1:
The instrument acts as a force transmission intermediary with a rigid structure that efficiently transmits applied force from the hand through the instrument body to the contact surface on the spine. This mechanical leverage allows greater force application to the spine without proportionally increasing stress on the hand, as the force is distributed through the instrument's structure
Solution Approach 2:
The contact surface of the instrument is designed with a curved or contoured shape that matches the anatomy of the spine. This curvature allows the force to be distributed over a larger surface area of the spine rather than concentrated at a single point, enhancing adjustment efficacy while reducing the peak force required, thereby lowering hand stress
3Productivity
If manual manipulation is performed frequently, then patient treatment volume increases, but hand cramping and arthritis develop
Solution Approach 1:
The instrument is designed to be self-supporting and self-positioning, with features such as a contoured handle that naturally fits the hand and a rigid structure that maintains its position during adjustment. This self-service design reduces the need for the chiropractor to continuously adjust their hand position or exert additional stabilizing force, thereby reducing cumulative strain during frequent use
Solution Approach 2:
The instrument incorporates ergonomic design features in advance, such as a handle shaped to fit the hand's natural grip, contact surfaces pre-formed to match spinal anatomy, and weight distribution optimized before use. These preliminary design actions ensure that each adjustment can be performed with minimal hand strain, enabling high-frequency use without rapid deterioration of hand health
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus enables chiropractors to perform multiple spinal adjustments with reduced hand strain, increasing comfort for both the practitioner and the patient, and enhancing the efficacy of chiropractic manipulations by allowing greater force application without compromising hand health.
Implementation Method 1
at least one resilient pad is attached to the first of the generally planar portions of the frame
Data Source
AI summary
An apparatus includes a frame having a substantially planar first portion and a substantially planar second portion. The first and second portions are spaced rigidly apart from each other in a substantially parallel orientation to define a passage that extends through the frame between the first portion and the second portion. The passage is dimensioned and configured to receive a hand. A central axis extends longitudinally through the passage. The apparatus further comprises a first pad and a second pad located on an exterior of the first portion of the frame and spaced apart from each other to provide a channel that extends longitudinally between the first pad and the second pad substantially orthogonal to the central axis. The channel may be configured to align with the spine where the first pad and the second pad are positioned to lie on opposing sides of the spine.