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FIT impairment-measuring technology
Models 2000 and 2500

Pulse Medical Instruments (PMI)는 작업자의 작업자의 육체적 상태를 안구를 통하여 분석하여 작업장의 안전과 생산성을 향상시키는 특수한 기술을 발전시켜왔읍니다. 이것은 작업자의 피로함,합법적인 약물복용 및 마약,알콜등 복합요소를 분석할 수 있습니다. 기본 모델은 FIT 2000과 FIT2500이며 각 기기의 특징은 아래와 같습니다.

 

장비의 측정원리 : 사람의 안구는 빛에 어떻게 반응하느냐에 따라, 피로도,약물,마약, 알콜등에 의한 원인의

                     신체 손상원인을 분석을 할 수 있음.

                     FIT모델의 핵심 기술은 빛에 대한 무의식적인 안구의 즉각적인 반응도를 측정하는 것으로,

                     작업자의 개인 ID를 입력하여, 반짝이는 광원에 30초동안 안구를 노출시켜, 안구의 반응도를

                     측정합니다.

                     이에 따라, 정상적인 상태의 Base line 수치를 개인 ID에 입력하여, 작업작가 작업전에 안구

                     를 검사하여, 작업적합도를 판정하며,부적합시 원인 분석을 할 수 있음.

FIT 2000 Fitness-for-duty Screener- 30초 이내, 작업전 작업예정자의 피로도/약물/마약 복용/알콜중독등의

     4가지 요소를 복합하여, 안구의 빛에 대한 반응도를 분석하여 신체손상수치를 데이터화하며, 작업적합 여부

     분석함. 또한 이 수치는 혈중알콜농도와도 긴밀한 상관관계를 가지고 있으며,

     추가 기능으로 작업자의 안구분석을 한 후 자동으로 스크린에서 작업자의 작업을 "GO/NO GO"로 판단 시킬 수

     있다.

FIT 2500 Fatigue Analyzer-  작업자의 수면부족,생체리듬및 피로도를 분석하여 작업자의 피로도를 수치화하여

                           작업자의 피로도 및 작업가능여부 분석함. 초기 10여번 정도 반응도를 확인하여

                           작업자의 피로수치를 Base line으로 잡음. 주로 연구용으로 많이 사용.

Two of the FIT measurements-- 안구의 반응속도와 수축대기시간- 수면부족으로부터 피로도

                              수치를 정확히 판단함.

                                     (saccadic velocity and constriction latency-are accurate

                                     indicators of fatigue from sleep deprivation and extended wakefulness.)

Two other FIT measurements-- 안구의 압축변위와 동공의 직경 - 약물과 마약, 알콜등으로

                             손상된 수치를 정확히 판단함.

                             (constriction amplitude and pupil diamter-are accurate indicators of                                      impairment from medications and drugs. Alcohol affects all four                                      measurments)

Individual baseline, can effectively identify overall presence of impairing factors in combination.

By assessing how changes in Blood Alcohol Concentration (BAC) affect a person뭩 FIT Index,

the equipment can measure.

The FIT Index, a statistical roll-up of how a person뭩 real-time measurements compare to

his/her be set to thresholds that identify when a person is at higher risk of causing

an accident due to impairment.

 

 

 

 

Characteristics

•30-second test
•Instant results
•Non-invasive
•Spots effects of fatigue, medications, drugs, and alcohol
•Results cannot be gamed or faked
•Rigorously validated by major research labs
•Field-tested by demanding customer

과학적 입증 연구소 :

 

Considerable scientific validation has been performed by leading U.S.research organizations:

•Addiction Research Center, National Institutes of Health, Johns •Hopkins (Baltimore, MD)
•Walter Reed Army Institute of Research (Washington, DC)
•Vermont Alcohol Research Center (Burlington, VT)
•University of Iowa Department of Ophthalmology (Iowa City, IA)
•Institute for Circadian Physiology (Boston, MA)

      Customers        Over 750,000 tests have been conducted to date at customers such as:
        

        Shell Callide
        Walter Reed A.I.R.
        Alcoa
        U.S. Navy
        SuperShuttle
        RAG Burton
        Exxon
        CRL Stradbroke
        Arizona Superior Court

In a 30-second test, PMI- FIT technology makes key measurements of how a person뭩 eye reacts to light. Changes in the measurements have been shown to correlate significantly to the presence of different impairing factors. There are two models of the FIT technology: the FIT 2000 Fitness-for-duty Screener and the FIT 2500 Fatigue Analyzer.

Findings
The effectiveness and accuracy of FIT technology has been validated by a number of leading U.S. research laboratories for human impairment. To summarize their research:
Research
A number of research studies have validated the accuracy and effectiveness of the FIT뭩 measurements:
•Partial sleep dose response study; Russo, Belenky, et al; Walter Reed Army Institute of   Research (1999)
•Continuous sleep deprivation study; Rowland, Krichmar, et al; Walter Reed Army Institute of Research (1997)
•Extended wakefulness and FIT study; Stampi, Aguirre, et al; Institute for Circadian   Physiology (1994)
•Controlled-dose FIT tests for marijuana; Pickworth, et al; Addiction Research Center,   National Institutes of Health, Johns Hopkins University (1993)
•Controlled-dose FIT tests for cocaine; Addiction Research Center, National Institutes of   Health, Johns Hopkins University (1993)
•Controlled-dose FIT tests for alcohol; Perrine, Mundt; VT Alcohol Research Center (1993)

In addition, a variety of research studies have incorporated the FIT measurements into their protocols in order to collect data on physiological changes under different conditions:

•Caffeine and sleep deprivation study; Kamimori, Walter Reed Army Institute of Research   (1999)
•Police officer fatigue study; Vila for Police Executive Research Forum (1999)
•Studies of sleep restriction; Dinges for National Space Biomedical Research Institute   (1999)
•Evaluation of continuous fatigue-monitoring devices; Dinges for NHTSA (1998)
•USS Nimitz surge operations analysis; Healing for US Navy (1997)
•Clipper crew downsizing study; Monterey Technologies for U.S. Coast Guard (1997)
•Canalert; Moore-Ede for Canadian railroads (1996)
•Engineman Stress and Fatigue II tests; Volpe for Federal Railroad Administration (1995)

Fitness-for-duty assessment
The FIT 2000 Fitness-for-duty Screener cannot, by itself, determine whether an employee is too impaired to work hat depends on the specifics of each job. It can, however, identify when an employee is significantly less alert than usual,and thus at higher risk of causing an accident.

The FIT 2000 is set at a threshold to ensure spotting significantly impaired individuals.
 
The false positive rate for the FIT 2000 high-risk assessment--i.e., an unimpaired person receiving a positive reading--is between 1 in 1000 and 1 in 100,000.

The false negative rate depends upon how one defines "impairment."
These statistics are determined off a baseline comprised of measurements while unimpaired.

The FIT2500 Fatigue Analyzer cannot make an assessment of fitness-for-duty. No commonlyaccepted standards currently exist for determining excessive fatigue, nor have any such standards been correlated to changes in FIT eye measurements. The technology focuses only on measuring changes in an individual's fatigue levels.

Workplace uses
FIT technology is used in two basic ways:
a. Analytical studies
b. Impairment screening

Within these basic ways, there are many variations of how exactly customers have used this powerful technology. Please see "Landscape of Uses" for different ways customers have used FIT technology.

Analytical studies

FIT can be used to "keep a finger on the pulse" of employee impairment and identify how changes in organizational policy affect alertness. (See "Research Protocols" for a sample of studies into whose protocols FIT technology has been written.)

For example
•One military organization used the FIT to understand better how cutting the number of   crewmembers on their vessels would impact overall alertness levels.

•One research group used the equipment to determine how impairment among police   officers correlated to favorable and unfavorable performance.

•Several railroads have used it to assess whether scheduling policies and fatigue   countermeasures are effective in reducing impairment.

•Another military organization used it to help determine how crew readiness changed over   the course of a long voyage.

•One transportation company used it to determine whom to send for a drug test.

•Depending on the study, either the FIT 2000 Fitness-For-Duty Screener or its sister model   the FIT 2500 Fatigue Analyzer can be used. Employee identities can be kept confidential, in   order to protect employees and organizations.

Impairment screening

The other major use of the FIT technology is to ensure that, each day, employees are fit-for-duty. PMI's technology can give a "go-/no-go" decision about whether an employee should work a safety-sensitive job that day.

Please see "Cost of Human Errors" for information on how much impaired workers cost U.S. businesses.

For example:

•A number of mining companies use it to ensure that all miners are unimpaired before   going underground.

•One metals company uses it to ensure that its contractors are fit-for-duty while on   company property.

•One transportation arm of a major company used it to make sure that, despite a drastic   shift schedule change, its drivers were OK to drive.

 

Landscape of different customer use options.
 

Why Impairment Testing?

 
Impact of U.S. injury-related workplace accidents, 1997

•Costs to industry
- Wage and productivity losses  $63 billion
- Medical costs                           $21 billion
- Other                                        $44 billion

               Total                            $128 billion

•Average costs
- Per death                                $890,000
- Per disabling injury                 $28,000

•Time lost                        125 million days
     
(National Safety Council, 1998)

•Between 50% and 95% of injuries (depending on the industry) are due primarily to human   error
•In addition, non-injury accidents and international operations generate further costs
•Beyond accidents, impaired employees reduce productivity and quality
How Does It Operate

The eye tells the story: changes in how it reacts to light is a significant indicator of fatigue, drugs, medications, or alcohol acting on a person.

The heart of FIT technology is a tabletop device that permits an employee to self-administer a quick, non-invasive assessment test. The machine measures an employee's involuntary eye-reflex reactions to light.

To use the device, a person simply keys in his/her ID number and looks with one eye into the eyepiece. The person follows the blinking light for 30 seconds while the equipment measures how the person's eye reacts to the light.


FIT 2000 Fitness-For-Duty Screener


Fatigue, medications, drugs, and alcohol affect the eye differently.  To capture the impact of all these factors, the FIT 2000 Fitness-For-Duty Screener makes four key eye measurements which correlate to the presence of these factors.

Each individual has his/her own profile for how the eye normally reacts to the light test.  So, a baseline is set up for each individual.  Each subsequent test compares the results against the individual's baseline.

To capture the cumulative effect of impairing factors, the device calculates a "FIT 2000 Impairment Index", a statistical roll-up of how a person's real-time measurements compare to his/her individual baseline.

In addition, if desired, a "go/no-go" function can screen for significantly impaired employees.  Changes in the FIT 2000 Impairment Index have been correlated to Blood Alcohol Concentration.  By spotting employees who exceed a certain Index threshold, a company can identify when a person may be at high-risk of causing an accident.

While the FIT 2000 is highly effective at identifying impairment, it does not attempt to identify cause - a significant plus for employees sensitive to privacy issues.

FIT 2500 Fatigue Analyzer

Sleep deprivation, circadian rhythms, and extended wakefulness affect only selected aspects of an eye's reaction to light.  The FIT 2500 Fatigue Analyzer isolates and analyzes only those eye measurements that correlate to such fatiguing factors.

Each individual has his/her own profile for how the eye normally reacts to the light test.  So, a baseline is set up for each individual.  Each subsequent test compares the results against the individual's baseline.

The device calculates a "FIT 2500 Fatigue Index" a statistical roll-up of how a person's real-time measurements compare to his/her individual baseline.

By calibrating the FIT 2500 Fatigue Index to results from laboratory research, the device can assess how fatigued an individual is.

(Note: a handful of other factors, notably alcohol, can also have an effect on the FIT 2500's measurements.)

The FIT 2500 cannot make a determination of overall fitness-for-duty, a crucial advantage when data is intended for informational/research purposes only.

Baselines are a key element of operation. A baseline is established for each individual during his/her first 10 tests, with the baseline growing as more data points are added. Thresholds are set up to minimize the impact of baseline tests taken while impaired.

Output from the equipment is flexible. Results are recorded in a computer, and can be set up to be displayed electronically, to print, and/or to generate an email.

Some test characteristics:

•Self-administered
•30-second test
•Instant results
•Non-invasive
•Inexpensive
•Measures an individual only against him/herself
•Cannot be gamed or faked

Specifications   
Physical Specifications:
•Dimensions 16"W x 25"H x 17"D
•Weight 60 pounds
Operating Requirements:
•110-240 VAC
•50-60 Hz
•1.1 Amp
•Temp: 50-110 F
•Humidity: < 90% (non-condensing)
Support Requirements:
•Stand alone PC with the following minimum requirements:
      486-66MHZ or higher
      16 Megabytes of RAM
      100 Megabyte hard drive
      Windows 95 or NT 4.0 or greater
•For stand up application:
  Stable platform dimensions:
      Height: 42"
      Width: Min. 17 1/2"
      Depth: Min. 23"
• Networkable

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sales@gohanmi.com

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sales@gohanmi.com