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U.S. Department of Health and Human Services

Recognized Consensus Standards

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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 054 Date of Entry 07/06/2020 
FR Recognition Number 3-165
Standard
ASTM F1841-19
Standard Practice for Assessment of Hemolysis in Continuous Flow Blood Pumps
Scope/Abstract
1.1 This practice covers a protocol for the assessment of the hemolytic properties of continuous, intermittent, and pulsatile flow blood pumps used in circulatory assist, including extracorporeal, percutaneous, and implantable devices. An assessment is made based on the pump's effects on the erythrocytes over a certain period of time. Adopting current practices for this assessment, a 6-hour in vitro test is performed on a pump placed in a device-specific recirculating blood loop that mimics the pressure and flow conditions of the expected worst-case clinical use of the device. If the ultimate goal of the testing is to evaluate the blood damage potential of a pump for clinical use, it is suggested that paired testing between the subject blood pump and a legally marketed comparator device be conducted using the same blood pool in a matched blood test loop so that a relative hemolysis comparison can be made.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
Extent of Recognition
Complete standard
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.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§870.4360 Pump, Blood, Cardiopulmonary Bypass, Non-Roller Type Class 2 KFM
§870.4370 Pump, Blood, Cardiopulmonary Bypass, Roller Type Class 2 DWB
§870.3545 Ventricular Bypass (Assist) Device Class 3 OKR
Relevant FDA Guidance and/or Supportive Publications*
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
 Jean E. Rinaldi
  FDA/OC/CDRH/OSEL/DAM/
  301-796-2523
  jean.rinaldi@fda.hhs.gov
 Richard Malinauskas
  FDA/OC/CDRH/OSEL/DAM/
  301-796-2506
  RICHARD.MALINAUSKAS@FDA.HHS.GOV
Standards Development Organization
ASTM ASTM International http://www.astm.org/
FDA Specialty Task Group (STG)
Cardiovascular
*These are provided as examples and others may be applicable.
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