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Pressure effects from the military stretcher
1208 General Hospital RAMC(V), Liverpool.
Journal of the Royal Army Medical Corps
|October 1, 1993
Summary
Folding pole canvas stretchers with screw and strip attachments may be deficient. This design can lead to uneven canvas tension and high interface pressures, potentially increasing the risk of pressure necrosis for patients.
Area of Science:
- Biomedical Engineering
- Orthopedics
- Materials Science
Background:
- Folding pole canvas stretchers are used in medical settings.
- Proper canvas tension and support are crucial for patient comfort and safety.
- Existing stretcher designs may have limitations in achieving uniform canvas support.
Purpose of the Study:
- To evaluate the design and performance of folding pole canvas stretchers.
- To identify potential deficiencies in canvas tensioning and support mechanisms.
- To assess the risk of adverse outcomes associated with specific stretcher designs.
Main Methods:
- Comparative analysis of different canvas attachment methods (screws/strips vs. tacks).
- Evaluation of canvas tensioning and uniformity of support.
- Measurement of interface pressures on the stretcher surface.
Main Results:
- Stretchers using screws and metal strips exhibited defective canvas tensioning and support uniformity.
- High interface pressures were detected on screw and strip stretchers.
- Stretchers with regularly spaced tacks did not present these issues.
Conclusions:
- The screw and strip canvas attachment method poses a potential deficiency in folding pole canvas stretchers.
- Patients using screw and strip stretchers may face an elevated risk of pressure necrosis due to high interface pressures.
- Alternative tensioning methods, such as regularly spaced tacks, appear to mitigate these risks.