Patient transport apparatus with auxiliary wheel override assembly

The patient transport apparatus addresses the challenge of braking with auxiliary wheels by using a linkage-based braking system that moves auxiliary wheels to a stowed position during braking, ensuring effective braking and stability.

EP4604895B1Active Publication Date: 2026-07-01STRYKER CORP
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
STRYKER CORP
Filing Date
2023-10-18
Publication Date
2026-07-01

AI Technical Summary

Technical Problem

Conventional patient transport apparatuses with auxiliary wheel assemblies face challenges in effectively braking while the deployable wheels are in contact with the floor surface.

Method used

A patient transport apparatus with a braking system that includes a linkage operable between braked and released states, featuring an auxiliary wheel assembly with an actuator that moves the auxiliary wheel to a stowed position when the braking system transitions to the braked state, concurrently disengaging the wheel from the floor surface.

Benefits of technology

Ensures effective braking and wheel disengagement from the floor surface during the braked state, enhancing control and stability of the patient transport apparatus.

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Abstract

A patient transport apparatus includes a support structure including a base and a patient support deck. The patient transport apparatus also includes a plurality of wheels and a braking system being operable between a braked state and a released state. The patient transport further includes a brake input device arranged for user engagement to change operation of the braking system between the braked state and the released state. The patient transport apparatus also further includes an auxiliary wheel assembly including an auxiliary wheel and an actuator configured to move the auxiliary wheel between a plurality of auxiliary support positions including a deployed position and a stowed position. The patient transport apparatus additionally includes an override assembly for move the auxiliary wheel away from the deployed position and toward the stowed position in response to movement of the braking system from the released state to the braked state.
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