ASTM F3107-14
(Test Method)Standard Test Method for Measuring Accuracy after Mechanical Disturbances on Reference Frames of Computer Assisted Surgery Systems
Standard Test Method for Measuring Accuracy after Mechanical Disturbances on Reference Frames of Computer Assisted Surgery Systems
SIGNIFICANCE AND USE
5.1 The purpose of this practice is to provide data that can be used for comparison and evaluation of the accuracy of different CAS systems.
5.2 The use of CAS systems and robotic tracking systems is becoming increasingly common and requires a degree of trust by the user that the data provided by the system meets necessary accuracy requirements. In order to evaluate the potential use of these systems, and to make informed decisions about suitability of a system for a given procedure, objective performance data of such systems are necessary. While the end user will ultimately want to know the accuracy parameters of a system under clinical application, the first step must be to characterize the digitization accuracy of the tracking subsystem in a controlled environment under controlled conditions.
5.3 In order to make comparisons within and between systems, a standardized way of measuring and reporting point accuracy is needed. Parameters such as coordinate system, units of measure, terminology, and operational conditions must be standardized.
SCOPE
1.1 This standard will measure the effects on the accuracy of computer assisted surgery (CAS) systems of the environmental influences caused by equipment utilized for bone preparation during the intended clinical application for the system. The environmental vibration effect covered in this standard will include mechanical vibration from: Cutting saw (sagittal or reciprocating), Burrs, drills and impact loading. The change in accuracy from detaching and re-attaching, or disturbing a restrained connection that does not by design require repeating the registration process of a reference base will also be measured.
1.2 It should be noted that one system may need to undergo multiple iterations (one for each clinical application) of this standard to document its accuracy during different clinical applications since each procedure may have different exposure to outside forces given the surgical procedure variability from one procedure to the next.
1.3 All units of measure will be reported as millimeters for this standard.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Standards Content (Sample)
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Designation: F3107 − 14
Standard Test Method for
Measuring Accuracy after Mechanical Disturbances on
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Reference Frames of Computer Assisted Surgery Systems
This standard is issued under the fixed designation F3107; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Computer Assisted Surgical Systems
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2.2 ISO Standard:
1.1 This standard will measure the effects on the accuracy of
computer assisted surgery (CAS) systems of the environmental ISO 10360 Geometrical Product Specifications (GPS) —
Acceptance and re-verification tests for coordinate mea-
influences caused by equipment utilized for bone preparation
during the intended clinical application for the system. The suring machines (CMM)
environmental vibration effect covered in this standard will
3. Terminology
include mechanical vibration from: Cutting saw (sagittal or
reciprocating), Burrs, drills and impact loading. The change in
3.1 Definition of Terms Specific to Accuracy Reporting:
accuracy from detaching and re-attaching, or disturbing a
3.1.1 accuracy, n—the closeness of agreement between a
restrained connection that does not by design require repeating
measurement result and an accepted reference value. E456
the registration process of a reference base will also be
3.1.1.1 Discussion—The term accuracy, when applied to a
measured.
set of measurement results, involves a combination of a
random component and of a common systematic error or bias
1.2 It should be noted that one system may need to undergo
component.
multiple iterations (one for each clinical application) of this
standard to document its accuracy during different clinical
3.1.2 bias, n—the difference between the expectation of the
applications since each procedure may have different exposure
measurement results and an accepted reference value. E456
to outside forces given the surgical procedure variability from
3.1.2.1 Discussion—Bias is the total systematic error as
one procedure to the next.
contrasted to random error. There may be one or more
systematic error components contributing to the bias. A larger
1.3 All units of measure will be reported as millimeters for
systematic difference from the accepted reference value is
this standard.
reflected by a larger bias value.
1.4 This standard does not purport to address all of the
3.1.3 maximum error, n—the largest distance between any
safety concerns, if any, associated with its use. It is the
measured point and its corresponding reference position for
responsibility of the user of this standard to establish appro-
any trial during a testing procedure.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3.1.4 mean, n—the arithmetic mean (or simply the mean) of
a list of numbers is the sum of all the members of the list
2. Referenced Documents
divided by the number of items in the list. If one particular
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number occurs more times than others in the list, it is called a
2.1 ASTM Standards:
mode. The arithmetic mean is what students are taught very
E456 Terminology Relating to Quality and Statistics
early to call the “average”. If the list is a statistical population,
E691 Practice for Conducting an Interlaboratory Study to
then the mean of that population is called a population mean.
Determine the Precision of a Test Method
If the list is a statistical sample, we call the resulting statistic a
F2554 Practice for Measurement of Positional Accuracy of
sample mean.
3.1.5 measurement range, n—see measurement volume.
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This test method is under the jurisdiction of ASTM Committee F04 on Medical
3.1.6 precision, n—the closeness of agreement between
and Surgical Materials and Devices and is the direct responsibility of Subcommittee
independent measurement results obtained under stipulated
F04.38 on Computer Assisted Orthopaedic Surgical Systems.
conditions. E456
Current edition approved Dec. 1, 2014. Published January 2015. DOI: 10.1520/
F3107-14.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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F3107 − 14
3.1.6.1 Discussion—Precision depends on random errors 3.2.6 marker, n—a si
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