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Method and system for predicting service life distribution of medical equipment

A technology of medical equipment and life distribution, applied in the direction of prediction, healthcare resources or facilities, instruments, etc., can solve the problem of low reliability of the test, and achieve the effect of improving the reliability of the test

Active Publication Date: 2021-08-17
广东科鉴检测工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on this, it is necessary to provide a method and system for predicting the life distribution of medical devices for the problem of low test reliability.

Method used

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  • Method and system for predicting service life distribution of medical equipment
  • Method and system for predicting service life distribution of medical equipment
  • Method and system for predicting service life distribution of medical equipment

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Embodiment Construction

[0019] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, the present invention provides a method for predicting the lifetime distribution of a medical device, which may include the following steps:

[0021] S1, perform data transformation on the original sampling life data of the complete medical device sample under different test stresses, and obtain several original data sequences;

[0022] Among them, the data transformation should meet the following conditions:

[0023] (1) When x(k)>0, k=1,2,...,n (n is a positive integer), y(k)≥0;

[0024] (2) If x(i)x(j), then y(i)>y(j), i, j is a positive integer;

[0025] (3) For any positive integer i, t, l, j, we have

[0026] For any positive integer k, x(k) is the data before transformation, and y(k) is the data after transformation corresponding to x(k). The data transformation method can adopt initial value transforma...

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Abstract

The present invention relates to a method and system for predicting the lifetime distribution of a complete medical device. Data transformation is performed on the original sampled life data of a complete medical device sample under different test stresses to obtain a number of original data sequences; respectively, according to each original data sequence to generate several first gray sequences; calculate the first arrival time of the failure of the complete medical device sample according to the first gray sequence, and solve the preset acceleration model according to the first arrival time to obtain the The life distribution of the complete sample of the medical device to be tested under the set stress. The above accelerated degradation test data processing method can effectively improve test reliability.

Description

technical field [0001] The invention relates to the technical field of accelerated degradation tests, in particular to a method and system for predicting the life distribution of a complete medical device. Background technique [0002] Accelerated degradation test is a life test method that shortens the test period by increasing the test stress. The accelerated degradation test method provides the basis for the reliability evaluation of high reliability and long life products. There are many types of accelerated degradation tests, and the following three types are commonly used: [0003] (1) Constant stress accelerated degradation test, referred to as constant stress test, that is, first select a set of accelerated stress levels, and then divide a certain number of samples into several groups, each group is subjected to a life test at a stress level, until each group has until a certain number of samples fail. [0004] (2) The step stress accelerated degradation test, ref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G16H40/20
CPCG06Q10/04G06Q50/22
Inventor 高军林湘云文武卢家锋
Owner 广东科鉴检测工程技术有限公司