1.1 本指南规定了设备的最低标准，此处指定为颈椎固定环（CSIC），通常称为颈椎环。CSIC用作急救医疗服务人员固定患者颈椎的初始装置。 1.2 本指南不确定通过在患者身上放置CSIC实现的特定运动限制程度。医学文献中尚未确定脊柱固定的明确要求，尤其是与CSIC使用相关的限制程度。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 4.1 本指南旨在确定CSIC应具备的特征。 4.2 预计CSIC不会单独用于提供所需的整个固定范围。临床情况可能需要不同的设备组合以实现充分的全脊柱固定。CSIC可以是这些设备之一。 4.3 可能需要各种配置或尺寸，或两者兼有，以适应个体之间的差异。 4.4 CSIC应能以符合人体工程学的方式供从业人员使用。 4.5 CSIC旨在提供稳定而非牵引力，且不得用于施加牵引力。

1.1 This guide establishes minimum standards for devices, designated here as cervical spine immobilization collar(s) (CSIC), commonly referred to as cervical collars. The CSIC is used as the initial device for immobilization of the cervical spine, of a patient by emergency medical service personnel. 1.2 This guide does not identify specific degrees of limitation of motion achieved by placement of a CSIC on a patient. Definitive requirements for immobilization of the spine, and, in particular, the degree of limitation associated with the use of a CSIC, have not been established in the medical literature. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 4.1 The intent of this guide is to identify characteristics that a CSIC shall possess. 4.2 It is not expected that the CSIC will be used alone to provide the entire scope of required immobilization. Clinical situations may require differing combinations of devices for adequate total spinal immobilization. A CSIC may be one of the devices. 4.3 Various configurations or sizes, or both, may be required to accommodate variation amongst individuals. 4.4 The CSIC shall be able to be used by the practitioner in an ergonomically sound manner. 4.5 The CSIC is intended to provide stabilization, not traction, and shall not be used to apply traction.