信号灯式护士呼叫系统是过去设立的一种方便住院病人的设施。廿世纪五十年代工厂开始把信号灯式呼叫系统与通话系统联合起来。这样,使工作人员到病房之前就能够询问病人的种种需求,从而避免医务人员多走不必要的路途。采用以前的这种护士呼叫和内部通话联络系统的管理水平已不能适应现有的或有计划的组织和护理形式。因此,现代化医院要具有更大灵活性的联络系统,使之能适应任何特定的室内组织机构,又要使人们耗费最少的劳动。 The beacon call system is a facility that was previously set up to facilitate inpatients. In the 1950s, the factory started to combine the signaling call system with the call system. In this way, staff members can be asked about patient needs before they arrive in the ward, thereby avoiding unnecessary travel by medical staff. The management of this former nurse call and intercom call system has become incapable of accommodating existing or planned forms of organization and care. Therefore, modern hospitals need to have greater flexibility in the liaison system so that they can adapt to any particular indoor organization, while at the same time allowing people to consume less labor.