ASTM-F1541 Standard Specification and Test Methods for External Skeletal Fixation Devices

ASTM-F1541 - 2017 EDITION - CURRENT
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Standard Specification and Test Methods for External Skeletal Fixation Devices
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Scope

1.1 This specification provides a characterization of the design and mechanical function of external skeletal fixation devices (ESFDs), test methods for characterization of ESFD mechanical properties, and identifies needs for further development of test methods and performance criteria. The ultimate goal is to develop a specification, which defines performance criteria and methods for measurement of performance-related mechanical characteristics of ESFDs and their fixation to bone. It is not the intention of this specification to define levels of performance or case-specific clinical performance of the devices, as insufficient knowledge is available to predict the consequences of the use of any of these devices in individual patients for specific activities of daily living. Furthermore, it is not the intention of this specification to describe or specify specific designs for ESFDs.

1.2 This specification describes ESFDs for surgical fixation of the skeletal system. It provides basic ESFD geometrical definitions, dimensions, classification, and terminology; material specifications; performance definitions; test methods; and characteristics determined to be important to the in-vivo performance of the device.

1.3 This specification includes a terminology and classification annex and five standard test method annexes as follows:

1.3.1 Classification of External Fixators—Annex A1.

1.3.2 Test Method for External Skeletal Fixator Connectors—Annex A2.

1.3.3 Test Method for Determining In-Plane Compressive Properties of Circular Ring or Ring Segment Bridge Elements—Annex A3.

1.3.4 Test Method for External Skeletal Fixator Joints—Annex A4.

1.3.5 Test Method for External Skeletal Fixator Pin Anchorage Elements—Annex A5.

1.3.6 Test Method for External Skeletal Fixator Subassemblies—Annex A6.

1.3.7 Test Method for External Skeletal Fixator/Constructs Subassemblies—Annex A7.

1.4 A rationale is given in Appendix X1.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 Multiple test methods are included in this standard. However, the user is not necessarily obligated to test using all of the described methods. Instead, the user should only select, with justification, test methods that are appropriate for a particular device design. This may be only a subset of the herein described test methods

1.7 The following safety hazards caveat pertains only to the test method portions (Annex A2 – Annex A6):

1.8 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Significance and Use

A1.4 Significance and Use

A1.4.1 The purpose of this classification is to establish a consistent terminology system by means of which these ESFD configurations can be classified. It is anticipated that a companion testing standard using this classification system will subsequently be developed.

Keywords

anchorage element; bending; bridge element; connector; external skeletal fixation device; fracture fixation; joints; modularity; orthopedic medical device; osteosynthesis; ring element; subassembly (frame); terminology; torsion; bending moments; connecting elements; connectors; external fixator; orthopedic device; stiffness; strength; bending; connecting elements; external fixator; joints; orthopedic device; range of adjustability; range of motion; stiffness; strength; torsion; external fixation; four-point bending; orthopedic device; pins; rigidity; stiffness; strength; torsion; bend testing—orthopedic medical devices; fatigue testing—orthopedic medical devices; orthopedic medical devices—external fixation devices; test methods—surgical devices;; ICS Number Code 11.040.40 (Implants for surgery, prosthetics and orthotics)

To find similar documents by ASTM Volume:

13.01 (Medical and Surgical Materials and Devices)

To find similar documents by classification:

11.040.40 (Implants for surgery, prosthetics and orthotics Including pacemakers Ophthalmic implants, see 11.040.70)

11.120.20 (Wound dressings and compresses)

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Document Number

ASTM-F1541-17

Revision Level

2017 EDITION

Status

Current

Modification Type

Revision

Publication Date

Oct. 1, 2017

Document Type

Specification

Page Count

33 pages

Committee Number

F04.21