WRHA MODULAR WHEELCHAIR SAFETY GUARDS
Bibliographic record
Abstract
The Winnipeg Regional Health Authority (WRHA) tasked BioTech Engineering Solutions & Technologies (BEST) with designing modular wheelchair safety guards for Personal Care Home (PCH) residents in Winnipeg. Some wheelchair-bound PCH residentsexperience gradual degradation of their trunk muscles over time, whichcauses them to slouch forward in their chair and leave their arms hanging over the sides. This condition increases the risk of catching hands, fingers or armsin the spokes of the wheelchair’s wheels.There are also other medical conditions that lead to the same increased risk of PCH residents injuring themselvesin the wheel area of their wheelchairs.Recently, a PCH resident sustained a hand injury due to getting caught in the spokes of their wheelchair, establishing the WRHA’s need for this project. Although the specific scenario from the recent injury can be used as a case study, the WRHA requested that BEST produce a solution that could protectother PCH residents in similar physical conditions in the future.To resolve this problem, BEST used an engineering design process that includedresearching existing products and patents, concept generation, concept selection, and detailed analysis. By following these steps in a timely manner,BEST was able to deliver a robust design solution to the WRHA.BEST’s solution to this problem is a Solid Hubcap Safety Guard that eliminates access to the spokes from the outer face of the wheel. This product is manufactured from a 1/8-inch thick ABS plastic sheet and, assuming the Solid Hubcaps are produced in batches of 100 units, the manufacturing cost is approximately $90 per pair of hubcaps. The product is attached to the wheelchair by securing Velcro®straps through the equally spaced slots about the front face of the hubcap and around the handrail of the wheelchair. As per the request of the client, this solution also includes a design for an optional Rear Safety Guard. The add-onis available for residents to purchase should they also require protection from accessing the spokes through the inner face of the wheel at the rear of the chair. BEST’s Solid Hubcap Safety Guard provides increased protection from hand injuries occurring in the spokes of wheelchair wheels at a lower cost...
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.027 | 0.009 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".