Linear Actuator

One of the major challenges in providing healthcare services to patients is the operational issues that occur with hospital beds. Hospital beds are equipped with mechanisms designed for patient comfort, position adjustment, and facilitating access for nurses and doctors. These mechanisms are also critical for emergencies, such as CPR (Cardiopulmonary Resuscitation) procedures.

Linotec Co.

Other

2020

Saeed Khosravi
Koleini

Overview Projects

When hospital beds experience motion malfunctions due to linear motors, they become unusable for both regular and emergency purposes. Replacing brushed motors with brushless motors can resolve a significant portion of these issues.

Advantages of Brushless Motors: Longer lifespan and reduced wear and tear due to the absence of mechanical components like brushes. Higher precision and controllability in linear movements. Lower energy consumption and more stable performance over time.

In our project, we discovered that the angles required for different patient positions are directly linked to the stroke range of linear motors. For instance, the backrest angle adjustment is often achievable with a 7 cm stroke. However, the microswitches available in the market typically come in fixed ranges of 10, 15, 20, 25, and 30 cm. If a hospital bed manufacturer needs to adjust the stroke range for specific requirements,

they must disassemble the product and replace the internal microswitch with one of the desired sizes. This process not only increases costs but also voids the product warranty before production. The brushless motor designed by Metotec, however, allows for easy customization of the stroke range without disassembly, addressing all the aforementioned issues. This feature, combined with precise control and extended durability, makes it an ideal solution for hospital beds.

Linear Actuator

Overview Projects

01.

Analysis

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Synthesis

03.

Evaluation

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