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YY/T 0696-2021: Test method for measuring output characteristics of nerve and muscle stimulators
Status: Valid YY/T 0696: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YY/T 0696-2021 | English | 99 |
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Test method for measuring output characteristics of nerve and muscle stimulators
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YY/T 0696-2021
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| YY/T 0696-2008 | English | 319 |
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Test method for measuring output characteristics of the nerve and muscle stimulators
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YY/T 0696-2008
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PDF similar to YY/T 0696-2021
Standard similar to YY/T 0696-2021 YY 0778 YY 0950 YY 0903 YY/T 0323 YY/T 0697 Basic data | Standard ID | YY/T 0696-2021 (YY/T0696-2021) | | Description (Translated English) | Test method for measuring output characteristics of nerve and muscle stimulators | | Sector / Industry | Medical Device & Pharmaceutical Industry Standard (Recommended) | | Classification of Chinese Standard | C42 | | Word Count Estimation | 5,520 | | Issuing agency(ies) | State Drug Administration | YY/T 0696-2021: Test method for measuring output characteristics of nerve and muscle stimulators---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for measuring output characteristics of nerve and muscle stimulators
ICS 11.040.60
C42
People's Republic of China Pharmaceutical Industry Standards
Replace YY/T 0696-2008
Measurement of output characteristics of nerve and muscle stimulators
Released on 2021-03-09
2023-05-01 implementation
Issued by the National Medical Products Administration
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces YY/T 0696-2008 "Measurement of the output characteristics of nerve and muscle stimulators", compared with YY/T 0696-2008,
In addition to editorial changes, the main changes are as follows.
--- Deleted the 5s average effective value in terms and definitions (3.2 in the.2008 edition);
---Added the 1s average effective value in terms and definitions (see 3.2);
---Modified the pulse energy in terms and definitions (see 3.3, 3.3 in the.2008 edition);
---Modified the requirements of test equipment (see 4.2, 4.2 of the.2008 edition);
---Modified the current density test method (see 5.2, 5.2 of the.2008 edition);
---Deleted the test method of output amplitude (5.3 in.2008 edition);
---Modified the pulse energy test method (see 5.3, 5.4 of the.2008 edition);
--- Deleted the contents of Appendix A and Appendix B (Appendix A and Appendix B of the.2008 edition).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents.
This standard was proposed by the State Drug Administration.
This standard is under the jurisdiction of the Physiotherapy Equipment Subcommittee (SAC/TC10/SC4) of the National Medical Electrical Appliance Standardization Technical Committee.
Drafting organizations of this standard. Tianjin Medical Device Quality Supervision and Inspection Center, Jilin Province Medical Device Inspection Institute, Shanghai Daosheng Medical Technology
Co., Ltd., Nanjing Xianneng Medical Technology Co., Ltd.
The main drafters of this standard. Qian Xuebo, Liu Bo, Wei Bingzhen, Zhou Huilin, Huang Xiuwen, Qi Lijing, Yang Guojuan, Zhang Yun, Chen Fengping.
Measurement of output characteristics of nerve and muscle stimulators
1 Scope
This standard specifies the measurement method for the output characteristics of equipment within the scope of YY 9706.210-2021.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB 9706.1 Medical Electrical Equipment Part 1.General Requirements for Safety
YY 9706.210-2021 Medical electrical equipment Part 2-10.Basic safety and basic performance of nerve and muscle stimulators
Use requirements
3 Terms and definitions
The following terms and definitions defined in GB 9706.1 and YY 9706.210-2021 apply to this document.
3.1
Effective value (subscript q) rmsvalue(subscript.q)
The square root of the average of the squares of the instantaneous values of a quantity in a specified time interval. For the period amount, the time interval is one
cycle.
For n quantities x1, x2,, xn, the positive square root of the average of its squares (squares), see formula (1).
Xq=
(x21 x22 x2n)
êê
úú
1/2
(1)
For the quantity x that depends on the variable t, the positive square root of the average value of the square of the quantity at a given interval of the variable, see equation (2).
Xq=
T∫
t0 T
t0
[x(t)]2dté
êê
úú
1/2
(2)
3.2
1s average effective value rmsvaluesaveragedover1s
For time-dependent variables, the effective value obtained on any integral time of 1s.
Note. Unless otherwise specified, the "effective value of voltage" and "effective value of current" used in this document refer to the 1s average effective value of voltage or current.
3.3
Pulseenergy
The energy of a single pulse. Calculate by formula (3) or formula (4).
E=I2pRtw E=
U2p
·Tw
÷ (3)
Where.
E --- pulse energy;
Ip --- the current peak value of the measured pulse;
R ---The load resistance required by.201.12.4.104 in YY 9706.210-2021 is 500Ω;
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