One ward, multiple door systems, dozens of keys.
The ability for staff to enter a room quickly during an emergency is critical. Yet many clinicians still carry large keychains containing multiple override keys to operate different door systems, anti-barricade mechanisms and emergency overrides.
During high-pressure situations, staff have to search through several keys to find the correct one for a particular door. Even a few seconds of delay can increase risk for both patients and staff when responding to incidents such as barricades or acute distress.
Alongside the safety implications, large keychains also create practical and psychological challenges. Staff frequently report that carrying numerous keys is cumbersome in day-to-day use. From a service user perspective, large visible keychains can reinforce a custodial atmosphere, unintentionally creating negative power dynamics and associations with prison environments rather than therapeutic care settings.
The Multi-System Key was developed to address these long-standing challenges.
Through engagement with clinicians, estates teams and capital project leaders across mental health services, Safehinge Primera repeatedly heard the same concern: complex key management was slowing staff response and creating operational frustration. Estates teams also described feeling constrained by the need to maintain a single door system across wards, as introducing different suppliers could require additional override keys and increase complexity during emergencies.
In response, the design team developed the Multi-System Key, a single tool capable of operating multiple anti-barricade and emergency override systems. The key incorporates a Y-joint design that combines Safehinge Primera’s anti-tamper Lifeline key with alternative override formats such as an 8mm square drive or oval mechanism. This enables staff to carry one key that functions across multiple systems.
The design process also focused heavily on usability. Clinicians highlighted that many existing keys are small, difficult to grip and can become stiff with frequent use. As a result, the Multi-System Key incorporates a longer ergonomic wing to improve leverage and grip during emergency operation. Curved edges improve comfort during repeated use, while a rotating keyring slot allows staff to quickly orient the key depending on which mechanism they need to access.
Colour-coded design cues were also introduced to support intuitive use under pressure. For example, a green band on the key aligns with a corresponding colour on the mechanism it operates, helping staff quickly identify the correct function during emergencies.
The frequency with which staff use emergency keys makes these improvements significant. On a typical ward, door override keys may be used every 15 minutes, equating to more than 12,000 uses per month. Even small usability improvements therefore have a substantial cumulative impact on staff efficiency and safety.
Durability was also addressed through improved materials after feedback from estates teams that some keys wear down within one to two months of heavy use.
The Multi-System Key demonstrates how thoughtful design, informed by real clinical experience, can remove unnecessary complexity, improve emergency response and support a calmer, more therapeutic ward environment.
