ANSI AAMI 10993-7-2008 Biological evaluation of medical devices-Part 7 Ethylene oxide sterilization residuals.pdf

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1、Association for the Advancementof Medical InstrumentationANSI/AAMI/ISO 10993-7:2008Biological evaluationof medical devicesPart 7: Ethylene oxidesterilization residualsObjectives and uses of AAMI standards and recommended practices It is most important that the objectives and potential uses of an AAM

2、I product standard or recommended practice are clearly understood. The objectives of AAMIs technical development program derive from AAMIs overall mission: the advancement of medical instrumentation. Essential to such advancement are (1) a continued increase in the safe and effective application of

3、current technologies to patient care, and (2) the encouragement of new technologies. It is AAMIs view that standards and recommended practices can contribute significantly to the advancement of medical instrumentation, provided that they are drafted with attention to these objectives and provided th

4、at arbitrary and restrictive uses are avoided. A voluntary standard for a medical device recommends to the manufacturer the information that should be provided with or on the product, basic safety and performance criteria that should be considered in qualifying the device for clinical use, and the m

5、easurement techniques that can be used to determine whether the device conforms with the safety and performance criteria and/or to compare the performance characteristics of different products. Some standards emphasize the information that should be provided with the device, including performance ch

6、aracteristics, instructions for use, warnings and precautions, and other data considered important in ensuring the safe and effective use of the device in the clinical environment. Recommending the disclosure of performance characteristics often necessitates the development of specialized test metho

7、ds to facilitate uniformity in reporting; reaching consensus on these tests can represent a considerable part of committee work. When a drafting committee determines that clinical concerns warrant the establishment of minimum safety and performance criteria, referee tests must be provided and the re

8、asons for establishing the criteria must be documented in the rationale. A recommended practice provides guidelines for the use, care, and/or processing of a medical device or system. A recommended practice does not address device performance per se, but rather procedures and practices that will hel

9、p ensure that a device is used safely and effectively and that its performance will be maintained. Although a device standard is primarily directed to the manufacturer, it may also be of value to the potential purchaser or user of the device as a frame of reference for device evaluation. Similarly,

10、even though a recommended practice is usually oriented towards healthcare professionals, it may be useful to the manufacturer in better understanding the environment in which a medical device will be used. Also, some recommended practices, while not addressing device performance criteria, provide gu

11、idelines to industrial personnel on such subjects as sterilization processing, methods of collecting data to establish safety and efficacy, human engineering, and other processing or evaluation techniques; such guidelines may be useful to health care professionals in understanding industrial practic

12、es. In determining whether an AAMI standard or recommended practice is relevant to the specific needs of a potential user of the document, several important concepts must be recognized: All AAMI standards and recommended practices are voluntary (unless, of course, they are adopted by government regu

13、latory or procurement authorities). The application of a standard or recommended practice is solely within the discretion and professional judgment of the user of the document. Each AAMI standard or recommended practice reflects the collective expertise of a committee of health care professionals an

14、d industrial representatives, whose work has been reviewed nationally (and sometimes internationally). As such, the consensus recommendations embodied in a standard or recommended practice are intended to respond to clinical needs and, ultimately, to help ensure patient safety. A standard or recomme

15、nded practice is limited, however, in the sense that it responds generally to perceived risks and conditions that may not always be relevant to specific situations. A standard or recommended practice is an important reference in responsible decision-making, but it should never replace responsible de

16、cision-making. Despite periodic review and revision (at least once every five years), a standard or recommended practice is necessarily a static document applied to a dynamic technology. Therefore, a standards user must carefully review the reasons why the document was initially developed and the sp

17、ecific rationale for each of its provisions. This review will reveal whether the document remains relevant to the specific needs of the user. Particular care should be taken in applying a product standard to existing devices and equipment, and in applying a recommended practice to current procedures

18、 and practices. While observed or potential risks with existing equipment typically form the basis for the safety and performance criteria defined in a standard, professional judgment must be used in applying these criteria to existing equipment. No single source of information will serve to identif

19、y a particular product as “unsafe“. A voluntary standard can be used as one resource, but the ultimate decision as to product safety and efficacy must take into account the specifics of its utilization and, of course, cost-benefit considerations. Similarly, a recommended practice should be analyzed

20、in the context of the specific needs and resources of the individual institution or firm. Again, the rationale accompanying each AAMI standard and recommended practice is an excellent guide to the reasoning and data underlying its provision. In summary, a standard or recommended practice is truly us

21、eful only when it is used in conjunction with other sources of information and policy guidance and in the context of professional experience and judgment. INTERPRETATIONS OF AAMI STANDARDS AND RECOMMENDED PRACTICES Requests for interpretations of AAMI standards and recommended practices must be made

22、 in writing, to the AAMI Vice President, Standards Policy and Programs. An official interpretation must be approved by letter ballot of the originating committee and subsequently reviewed and approved by the AAMI Standards Board. The interpretation will become official and representation of the Asso

23、ciation only upon exhaustion of any appeals and upon publication of notice of interpretation in the “Standards Monitor“ section of the AAMI News. The Association for the Advancement of Medical Instrumentation disclaims responsibility for any characterization or explanation of a standard or recommend

24、ed practice which has not been developed and communicated in accordance with this procedure and which is not published, by appropriate notice, as an official interpretation in the AAMI News. American National Standard ANSI/AAMI/ISO 10993-7:2008(R)2012 (Combined revision of ANSI/AAMI/ISO 10993-7:1995

25、/(R)2001, AAMI TIR19:1998 and AAMI TIR19:1998:/A1:1999) Biological evaluation of medical devices Part 7: Ethylene oxide sterilization residuals Approved 10 December 2008 by Association for the Advancement of Medical Instrumentation Approved 19 December 2008 and reaffirmed 1 June 2012 by American Nat

26、ional Standards Institute, Inc. Abstract: ANSI/AAMI/ISO 10993-7 specifies allowable limits for residual ethylene oxide (EO) and ethylene chlorohydrin (ECH) in individual EO-sterilized medical devices, procedures for the measurement of EO and ECH, and methods for determining compliance so that device

27、s may be released. Additional background, including guidance and a flowchart showing how this document is applied, is also included in informative annexes. EO-sterilized devices that have no patient contact (e.g., in vitro diagnostic devices) are not covered by this standard. Keywords: ethylene oxid

28、e, EO, allowable limits, biological evaluation, ethylene chlorohydrin AAMI Standard This Association for the Advancement of Medical Instrumentation (AAMI) standard implies a consensus of those substantially concerned with its scope and provisions. The existence of an AAMI standard does not in any re

29、spect preclude anyone, whether they have approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. AAMI standards are subject to periodic review, and users are cautioned to obtain the latest editions. CAUTION

30、NOTICE: This AAMI standard may be revised or withdrawn at any time. AAMI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than 5 years from the date of publication. Interested parties may obtain current information on all AAMI standards by calling or wr

31、iting AAMI. All AAMI standards, recommended practices, technical information reports, and other types of technical documents developed by AAMI are voluntary, and their application is solely within the discretion and professional judgment of the user of the document. Occasionally, voluntary technical

32、 documents are adopted by government regulatory agencies or procurement authorities, in which case the adopting agency is responsible for enforcement of its rules and regulations. Published by Association for the Advancement of Medical Instrumentation 1110 N. Glebe Road, Suite 220 Arlington, VA 2220

33、1-4795 www.aami.org 2008 by the Association for the Advancement of Medical Instrumentation All Rights Reserved This publication is subject to copyright claims of ISO, ANSI, and AAMI. No part of this publication may be reproduced or distributed in any form, including an electronic retrieval system, w

34、ithout the prior written permission of AAMI. All requests pertaining to this document should be submitted to AAMI. It is illegal under federal law (17 U.S.C. 101, et seq.) to make copies of all or any part of this document (whether internally or externally) without the prior written permission of th

35、e Association for the Advancement of Medical Instrumentation. Violators risk legal action, including civil and criminal penalties, and damages of $100,000 per offense. For permission regarding the use of all or any part of this document, contact AAMI, 1110 N. Glebe Road, Suite 220, Arlington, VA 222

36、01-4795. Phone: (703) 525-4890; Fax: (703) 525-1067. Printed in the United States of America ISBN 1570203326 Contents Page Glossary of equivalent standards iv Committee Representation . vi Background of ANSI/AAMI adoption of ISO 10993-7:2008 . ix Foreword. x Introduction xii 1 Scope 1 2 Normative re

37、ferences . 1 3 Terms and definitions. 1 4 Requirements 2 4.1 General. 2 4.2 Categorization of devices 2 4.3 Allowable limits. 3 4.4 Determination of EO and ECH residuals 5 5 Product release . 11 5.1 General. 11 5.2 Release of products without dissipation curve data. 11 5.3 Procedure for product rele

38、ase using residue dissipation curves . 11 Annex A (normative) Evaluation of gas chromatograms. 14 Annex B (informative) Gas chromatographic determination for EO and ECH. 18 Annex C (informative) Flowchart and guidance for the application of this part of ISO 10993 series of standards to the determina

39、tion of EO and ECH residuals in medical devices. 22 Annex D (informative) Factors influencing product residual. 30 Annex E (informative) Extraction conditions for determination of residual EO 32 Annex F (informative) Rationale for the provisions of this part of ISO 10993 33 Annex G (informative) Est

40、ablishment of allowable limits for EO 38 Annex H (informative) Establishment of allowable limits for ECH 57 Annex I (informative) Establishment of allowable limits for EG 67 Annex J (informative) Preparation of EO and ECH standards. 72 Annex K (informative) Ethylene oxide residue measuring methods.

41、76 Bibliography . 85 iv 2008 Association for the Advancement of Medical Instrumentation ANSI/AAMI/ISO 10993-7:2008 Glossary of equivalent standards International Standards adopted in the United States may include normative references to other International Standards. For each International Standard

42、that has been adopted by AAMI (and ANSI), the table below gives the corresponding U.S. designation and level of equivalency to the International Standard. NOTE: Documents are sorted by international designation. Other normatively referenced International Standards may be under consideration for U.S.

43、 adoption by AAMI; therefore, this list should not be considered exhaustive. International designation U.S. designation Equivalency IEC 60601-1:2005 ANSI/AAMI ES60601-1:2005 Major technical variations IEC 60601-1-2:2007 ANSI/AAMI/IEC 60601-1-2:2007 Identical IEC 60601-2-2:2006 ANSI/AAMI/IEC 60601-2-

44、2:2006 Identical IEC 60601-2-4:2002 ANSI/AAMI DF80:2003 Major technical variations IEC 60601-2-19:1990 and A1:1996 ANSI/AAMI II36:2004 Major technical variations IEC 60601-2-20:1990 and A1:1996 ANSI/AAMI II51:2004 Major technical variations IEC 60601-2-21:1994 and Amendment 1:1996 ANSI/AAMI/IEC 6060

45、1-2-21 and Amendment 1:2000 (consolidated texts) Identical IEC 60601-2-24:1998 ANSI/AAMI ID26:2004 Major technical variations IEC 60601-2-47:2001 ANSI/AAMI EC38:2007 Major technical variations IEC 60601-2-50:2001 ANSI/AAMI/IEC 60601-2-50:2006 Identical IEC 80601-2-58:2008 ANSI/AAMI/IEC 80601-2-58:20

46、08 Identical IEC/TR 60878:2003 ANSI/AAMI/IEC TIR60878:2003 Identical IEC/TR 62296:2003 ANSI/AAMI/IEC TIR62296:2003 Identical IEC 62304:2006 ANSI/AAMI/IEC 62304:2006 Identical IEC/TR 62348:2006ANSI/AAMI/IEC TIR62348:2006 Identical ISO 5840:2005 ANSI/AAMI/ISO 5840:2005 Identical ISO 7198:1998 ANSI/AAM

47、I/ISO 7198:1998/2001/(R)2004 Identical ISO 7199:1996 ANSI/AAMI/ISO 7199:1996/(R)2002 Identical ISO 8637:2004 ANSI/AAMI RD16:2007 Major technical variations ISO 8638:2004 ANSI/AAMI RD17:2007 Major technical variations ISO 10993-1:2003 ANSI/AAMI/ISO 10993-1:2003 Identical ISO 10993-2:2006 ANSI/AAMI/IS

48、O 10993-2:2006 Identical ISO 10993-3:2003 ANSI/AAMI/ISO 10993-3:2003 Identical ISO 10993-4:2002 and A1:2006 ANSI/AAMI/ISO 10993-4:2002 and A1:2006 Identical ISO 10993-5:1999 ANSI/AAMI/ISO 10993-5:1999 Identical ISO 10993-6:2007 ANSI/AAMI/ISO 10993-6:2007 Identical ISO 10993-7:2008 ANSI/AAMI/ISO 1099

49、3-7:2008 Identical ISO 10993-9:1999 ANSI/AAMI/ISO 10993-9:1999/(R)2005 Identical ISO 10993-10:2002 and Amendment 1:2006 ANSI/AAMI BE78:2002/(R)2008 ANSI/AAMI BE78:2002/A1:2006/(R)2008 Minor technical variations Identical ISO 10993-11:2006 ANSI/AAMI/ISO 10993-11:2006 Identical ISO 10993-12:2007 ANSI/AAMI/ISO 10993-12:2007 Identical ISO 10993-13:1998 ANSI/AAMI/ISO 10993-13:1999/(R)2004 Identical ISO 10993-14:2001 ANSI/AAMI/ISO 10993-14:2001/(R)2006 Identical ISO 10993-15:2000 ANSI/AAMI/ISO 10993-15:2000/(R)2006 Identical ISO 10993-16:1997 ANSI/AAMI/ISO 10993-16:1997/(R)2003 Ide

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