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U.S. Department of Health and Human Services

Recognized Consensus Standards: Medical Devices

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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 058 Date of Entry 05/30/2022 
FR Recognition Number 14-572
Standard
ANSI AAMI  ST91:2021
Flexible and semi-rigid endoscope processing in health care facilities
Scope/Abstract
Provides guidelines for point of use treatment, transporting, leak testing (where indicated), cleaning, packaging (where indicated), high-level disinfecting and/or sterilizing, storage, and quality control procedures of flexible gastrointestinal (GI) endoscopes, flexible bronchoscopes, flexible ear, nose, and throat endoscopes, flexible urology endoscopes, and other types of reusable flexible endoscopes used in procedural and surgical settings, and semi-rigid operative endoscopes (e.g., choledochoscopes) used in health care facilities. These guidelines are intended to provide comprehensive information and direction for health care personnel in the processing of these reusable devices and accessories to render them safe for patient use.
Extent of Recognition
Partial recognition. The following part(s) of the standard is (are) not recognized:
Clause 8.2.5 Endoscope drying (Sections referencing drying verification and methods for assessing drying in endoscopes in Annex K)

Clause 13.5.3 Cleaning verification tests for users (Sections referencing cleaning verification tests for endoscopes in Annex F)
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.

This standard is recognized in part because:
Clause 8.2.5 (Sections referencing drying verification and methods for assessing drying in endoscopes in Annex K) is not recognized because legally marketed drying verification tests for use with endoscopes in health care facilities are not currently available. See Potential for Monitoring Reprocessing Effectiveness in the FDA Safety Communication, reference #2 listed below.

Clause 13.5.3 (Sections referencing cleaning verification tests for endoscopes in Annex F) is not recognized because legally marketed cleaning verification tests for use with endoscopes in health care facilities are not currently available. See Potential for Monitoring Reprocessing Effectiveness in the FDA Safety Communication, reference #2 listed below.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
801 Labeling
820.3 Definitions
Relevant FDA Guidance and/or Supportive Publications*
1. Guidance for Industry and FDA staff: Reprocessing Medical Devices in Health Care Settings: Validation Methods and Labeling, Issued June 2017.

2. The FDA is Recommending Transition to Duodenoscopes with Innovative Designs to Enhance Safety: FDA Safety Communication, April 10, 2020. https://www.fda.gov/medical-devices/safety-communications/fda-recommending-transition-duodenoscopes-innovative-designs-enhance-safety-fda-safety-communication#potential


Appropriate Use of Voluntary Consensus Standards in Premarket Submissions for Medical Devices - Guidance for Industry and Food and Drug Administration Staff, issued September 2018.
FDA Technical Contacts
 Elaine Mayhall
  FDA/OC/CDRH/OPEQ/OHTIV/DHTIVB/
  301-796-6301
  Elaine.Mayhall@fda.hhs.gov
 Stephanie Cole
  FDA/OC/CDRH/OPEQ/OHTIII/DHTIIIA
  301-796-8587
  stephanie.cole@fda.hhs.gov
Standards Development Organizations
ANSI American National Standards Institute https://www.ansi.org/
AAMI Association for the Advancement of Medical Instrumentation http://www.aami.org
FDA Specialty Task Group (STG)
Sterility
*These are provided as examples and others may be applicable.
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