IMPORTANT - ISO 10328:2016 is suitable for the assessment of the conformity of lower limb prosthetic devices/structures with the strength requirements specified in 4.4 of ISO 22523:2006 (see NOTE 1). Prosthetic ankle-foot devices and foot units on the market, which have demonstrated their compliance with the strength requirements specified in 4.4 of ISO 22523:2006 through submission to the relevant tests of ISO 10328:2006, need not be retested to ISO 22675:2016. WARNING - ISO 10328:2016 is not suitable to serve as a guide for the selection of a specific lower limb prosthetic device/structure in the prescription of an individual lower limb prosthesis! Any disregard of this warning can result in a safety risk for amputees. ISO 10328:2016 specifies procedures for static and cyclic strength tests on lower-limb prostheses (see NOTE 2) which typically produce compound loadings by the application of a single test force. The compound loads in the test sample relate to the peak values of the components of loading which normally occur at different instants during the stance phase of walking.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Designations and symbols of test forces and moments
5 Strength and related performance requirements and conditions of use
6 Coordinate systems and test configurations
6.1 General
6.2 Axes of coordinate systems
6.3 Reference planes
6.4 Reference points
6.5 Test force
6.6 Load line
6.7 Longitudinal axis of the foot and effective joint centres and centrelines
6.8 Reference distances
7 Test loading conditions and test loading levels
7.1 Test loading conditions
7.2 Test loading levels
8 Values of test loads, dimensions and cycles
9 Compliance
9.1 General
9.2 Selection of tests required to claim compliance with this International Standard
9.3 Arrangements for tests on samples of prosthetic structures including ankle-foot devices or foot units, required to claim compliance with this International Standard
9.4 Number of tests and test samples required to claim compliance with this International Standard
9.5 Multiple use of test samples
9.6 Testing at particular test loading levels not specified in this International Standard
10 Test samples
10.1 Selection of test samples
10.2 Types of test samples
10.3 Preparation of test samples
10.4 Identification of test samples
10.5 Alignment of test samples
10.6 Worst-case alignment position of test samples
11 Responsibility for test preparation
12 Test submission document
12.1 General requirements
12.2 Information required for test samples
12.3 Information required for tests
13 Equipment
13.1 General
13.2 Equipment for the principal tests specified in 16.2 and 16.3
13.3 Equipment for the separate static test in torsion specified in 17.1
13.4 Equipment for the separate tests on ankle-foot devices and foot units specified in 17.2
13.5 Equipment for the separate static ultimate strength test in maximum knee flexion for knee joints and associated parts specified in 17.3
13.6 Equipment for the separate tests on knee locks specified in 17.4
14 Accuracy
14.1 General
14.2 Accuracy of equipment
14.3 Accuracy of procedure
15 Test principles
15.1 General
15.2 Static test procedure
15.3 Cyclic test procedure
16 Test procedures – Principal structural tests
16.1 Test loading requirements
16.2 Principal static test procedure
16.3 Principal cyclic test procedure
17 Test procedures — Separate structural tests
17.1 Separate static test in torsion
17.2 Separate tests on ankle-foot devices and foot units
17.3 Separate static ultimate strength test in maximum knee flexion for knee joints and associated parts
17.4 Separate tests on knee locks
18 Test laboratory/facility log
18.1 General requirements
18.2 Specific requirements
19 Test report
19.1 General requirements
19.2 Specific requirements
19.3 Options
20 Classification and designation
20.1 General
20.2 Examples of classification and designation
21 Labelling
21.1 General
21.2 Use of mark “*)” and warning symbol
21.3 Examples of label layout
21.4 Label placement
Annex A Description of internal loads and their effects (informative)
Annex B Reference data for the specification of test loading conditions and test loading levels of principal cyclic tests (informative)
Annex C Guidance on the application of an alternative static ultimate strength test (informative)
Annex D Guidance on the application of an additional test loading levels P6, P7 and P8 (normative)
Annex E Summary of the records to be entered in the test laboratory/facility log (informative)
Annex F Background information on the loading profiles generated by test equipment according to 13.4.1.2 for separate cyclic tests for ankle-foot devices and foot units according to 17.2.5.1 (informative)
Annex G Reference to the essential principles of safety and performance of medical devices according to ISO/TR 16142 (informative)
4 Designations and symbols of test forces and moments
5 Strength and related performance requirements and conditions of use
6 Coordinate systems and test configurations
6.1 General
6.2 Axes of coordinate systems
6.3 Reference planes
6.4 Reference points
6.5 Test force
6.6 Load line
6.7 Longitudinal axis of the foot and effective joint centres and centrelines
6.8 Reference distances
7 Test loading conditions and test loading levels
7.1 Test loading conditions
7.2 Test loading levels
8 Values of test loads, dimensions and cycles
9 Compliance
9.1 General
9.2 Selection of tests required to claim compliance with this International Standard
9.3 Arrangements for tests on samples of prosthetic structures including ankle-foot devices or foot units, required to claim compliance with this International Standard
9.4 Number of tests and test samples required to claim compliance with this International Standard
9.5 Multiple use of test samples
9.6 Testing at particular test loading levels not specified in this International Standard
10 Test samples
10.1 Selection of test samples
10.2 Types of test samples
10.3 Preparation of test samples
10.4 Identification of test samples
10.5 Alignment of test samples
10.6 Worst-case alignment position of test samples
11 Responsibility for test preparation
12 Test submission document
12.1 General requirements
12.2 Information required for test samples
12.3 Information required for tests
13 Equipment
13.1 General
13.2 Equipment for the principal tests specified in 16.2 and 16.3
13.3 Equipment for the separate static test in torsion specified in 17.1
13.4 Equipment for the separate tests on ankle-foot devices and foot units specified in 17.2
13.5 Equipment for the separate static ultimate strength test in maximum knee flexion for knee joints and associated parts specified in 17.3
13.6 Equipment for the separate tests on knee locks specified in 17.4
14 Accuracy
14.1 General
14.2 Accuracy of equipment
14.3 Accuracy of procedure
15 Test principles
15.1 General
15.2 Static test procedure
15.3 Cyclic test procedure
16 Test procedures – Principal structural tests
16.1 Test loading requirements
16.2 Principal static test procedure
16.3 Principal cyclic test procedure
17 Test procedures — Separate structural tests
17.1 Separate static test in torsion
17.2 Separate tests on ankle-foot devices and foot units
17.3 Separate static ultimate strength test in maximum knee flexion for knee joints and associated parts
17.4 Separate tests on knee locks
18 Test laboratory/facility log
18.1 General requirements
18.2 Specific requirements
19 Test report
19.1 General requirements
19.2 Specific requirements
19.3 Options
20 Classification and designation
20.1 General
20.2 Examples of classification and designation
21 Labelling
21.1 General
21.2 Use of mark “*)” and warning symbol
21.3 Examples of label layout
21.4 Label placement
Annex A Description of internal loads and their effects (informative)
Annex B Reference data for the specification of test loading conditions and test loading levels of principal cyclic tests (informative)
Annex C Guidance on the application of an alternative static ultimate strength test (informative)
Annex D Guidance on the application of an additional test loading levels P6, P7 and P8 (normative)
Annex E Summary of the records to be entered in the test laboratory/facility log (informative)
Annex F Background information on the loading profiles generated by test equipment according to 13.4.1.2 for separate cyclic tests for ankle-foot devices and foot units according to 17.2.5.1 (informative)
Annex G Reference to the essential principles of safety and performance of medical devices according to ISO/TR 16142 (informative)
ISO 22523:2006 External limb prostheses and external orthoses -- Requirements and test methods
ISO 22675:2016 Prosthetics -- Testing of ankle-foot devices and foot units -- Requirements and test methods
ISO 8549-1:1989 Prosthetics and orthotics -- Vocabulary -- Part 1: General terms for external limb prostheses and external orthoses
ISO 22523:2006 External limb prostheses and external orthoses -- Requirements and test methods
ISO 22675:2016 Prosthetics -- Testing of ankle-foot devices and foot units -- Requirements and test methods
ISO 8549-1:1989 Prosthetics and orthotics -- Vocabulary -- Part 1: General terms for external limb prostheses and external orthoses
ISO/TR 16142:1999 Medical devices -- Guidance on the selection of standards in support of recognized essential principles of safety and performance of medical devices