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FDA发布吻合器/吻合钉指南文件

嘉峪检测网        2021-11-03 12:48

2021年10月份, FDA发布了一个和吻合器/吻合钉相关的指南文件。该指南文件的主要内容是吻合器/吻合钉产品的标识上(标签和说明书上)推荐应出现的内容。文件分成了正文和附件,正文由四大部分内容组成。今天笔者来帮大家解读一下这个文件。

 

FDA发布吻合器/吻合钉指南文件

 

我们先来看正文的第一部分,也就是简介。简介的部门非常精练地把这个文件的主要内容做了介绍,就是吻合器/吻合钉产品的标识上推荐应出现的内容。在简介部分同时提到这个指南文件中提到的要求并不是强制的。这里笔者插一句,虽然不是强制,其实FDA的审核员在审核时都会考虑这些要求。

 

正文的第二部分是背景信息。就是为什么要发布这个文件。这里直接给大家呈现一些极具冲击力的数据。FDA发现很多不良事件是和吻合器/吻合钉相关的,从2011年1月到2018年3月, FDA收到了41,000多件和吻合器/吻合钉相关的不良事件,每年将近7,000多件。在这41,000多件不良事件当中有超过360件涉及到死亡的不良事件。主要的根本原因是器械误用和功能失效。如果提供给终端用户的说明书内容不充分,没有提供充分的警示信息和使用注意事项信息都会让器械误用的情况发生得更加频繁,不良事件很可能会增加。反过来想,FDA相信如果在标识上有针对性地放上一些内容,会让器械误用的情况有所减少。

 

正文的第三部分提及了该文件适用的产品。具体请见下表。

Product code

Regulation number

Name

GAG

21 CFR 878.4740

Stapler, Surgical

GDW

21 CFR 878.4750

Staple, Implantable

NLL

21 CFR 878.4750

Staple, Implantable, Reprocessed

NAY

21 CFR 876.1500

System, Surgical, Computer Controlled Instrument

 

最重要的内容出现在正文的第四部分。FDA对禁忌症信息(Contraindications),警示信息(Warnings),使用说明(Directions for use)和技术特征和性能参数(Technical characteristics and performance parameters)四个方面的内容给出了建议。方便大家浏览,笔者用表格的方式帮大家做了整理。

 

Item

Section

Points should be added per FDA,s Recommendation

 

1

 

Contraindications

A statement noting that the device should not be used to staple tissues that are necrotic, friable, or have altered integrity, e.g., ischemic or edematous 

tissues

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

Warnings

A statement noting that the device should not be used to staple tissue outside of the labeled limits for maximum and minimum tissue  thickness 

A statement to visually inspect prior to firing 

for inclusion of unintended anatomic structures 

within the staple line 

A statement to ensure that no obstructions,

such as clips, are incorporated into the 

instrument jaws when positioning the stapler on the application site, and that firing over an obstruction may result in incomplete cuttingaction and/or improperly formed staples 

A statement that clamping and unclamping of delicate structures, such as venous structures and bile ducts, may result in damage totissue irrespective of 

stapler firing 

A statement to avoid use of the stapler on the 

aorta 

A statement that, where practical, proximal control of blood vessels is recommended prior to stapling, and that surgeons should havemethods of blood vessel control in place in the event of stapler failure 

A statement to ensure that the staples are compatible with the stapler 

A statement that there is a risk of increased 

leak rates when staple lines are crossed, even if there may be clinical circumstances when a surgeon may 

deem it necessary or appropriate to  do so 

 

 

 

3

 

 

 

Directions for use

Specific user instructions for proper device use including measures associated with the prevention of device malfunction, and evaluation of  the appropriate-ness of the target tissue for stapling

 

Validated methods and instructions for reprocessing of any reusable device components

An expiration date/shelf life 

 

 

 

 

 

4

 

 

 

 

Technical characteristics and performance parameters

List of staples with which the stapler has been demonstrated to be compatible

Identification of key performance parameters and technical characteristics of the stapler and the compatible staples needed for safe use of  the device

Information regarding tissues on which the stapler is intended to be used

Identification of safety mechanisms of the  stapler

Package labels must include critical information and technical characteristics necessary for 

proper device selection

 

最后的附件给出了一些具体的例子供供应商参考。

 

以上就是该指南文件的主要内容,吻合器/吻合钉的厂商在提交510(k)应充分考虑这些要求。

 

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来源:启升资讯