Ishihara Book
The Ishihara test is the most well-known color blindness test all around the world. it consists of 38 so called pseudoisochromatic plates, each of them showing either a number or some lines. according to what you can see and what not, the test gives feedback of the degree of your red-green color vision deficiency. this test can only be used to detect red-green color blindness. how the test works: for each plate you have to either enter the number or you have to choose the number of lines you can see. if you don’t see anything just leave the input field empty.
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This AWS figure ergo-meter is ideal for the study of human muscle fatigue. It can be used to record frequency, duration, speed of pull and relaxation curves. A pistol grip carries a trigger that operates against and adjustable spring tensioning device. The pivot point of the trigger holds and adjustable rod, to which a nylon line is secured. This line is wrapped around and adjustable pulley and anchored to a small spring at the top of an upright. A holder on pulley carries an ink writing stylus, which receives ink from a small reservoir. The height of the holder is adjustable. The aluminum base is 125mm (5 inch) wide and 500mm (20 inch) long which is sufficient to support the entire forearm when the hand is holding the pistol grip. A holder on pulley carries an ink writing stylus, which receives ink from a small reservoir. The height of the holder is adjustable. The aluminum base is 125mm (5 inch) wide and 500mm (20 inch) long which is sufficient to support the entire forearm when the hand is holding the pistol grip. Two uprights, which are adjustable for width, are mounted on the base to support and study the wrist. The instrument may be rapidly adopted for the use with a transducer.
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Vitalograph ALPHA
Product: ALPHA Spirometer Model No: 6000 Size: 300 x 250 x 75mm Weight: 2kg net Parameters Measured: Varies by country variant Operating Temperature Range: ATS/ERS Limits: 17 – 37°C Design Limits: 10 – 40°C Voltage/Frequency: 110-250V~50/60Hz Flow Detection Principle: Fleisch type pneumotachograph Volume Detection: Flow integration sampling @ 100Hz Accuracy when Operated in Operating Temperature Range Conditions: Flow +/- from 10% to 5% Max flow rate +/-16L/s Min flow rate +/-0.02L/s Volume Accuracy: Better than +/-3% Maximum Displayed Volume: 10 L
Maximum Test Duration: 90 seconds Flow Impedance: <0.1kPa/L/s @ 14L/s Complies with ATS/ERS 2005 Printer: Thermal Performance Standards: ATS/ERS 2005 & ISO 26782:2009, ISO 23747:2007 Safety Standards: IEC 60601-1:2005 Medical Safety Standard: Medical Devices Directive 93/42/EEC as amended Designed & Manufactured Under: ISO 13485:2003, FDA 21CFR820, CMDR Communications: USB and Compact Flash
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Stethograph
The Stethograph is designed for recording human respiratory movement with a recording device such as a tambour or transducer.
The corrugated rubber tubing is 200mm (8 inch) long and 35mm (13/8 inch) diameter. A nickel-plated chain 850mm (34 inch long, is secured at one end of the Stethograph, and may be secured at any point to a hook at the opposite end. In this manner the Stethograph may be placed in a convenient, yet unyielding, way on the subject.
At one end of the Stethograph is riffled tube with an inside diameter of 3mm (1/8 inch), for connection to the tambour or the recoding device,
- Stethograph
Stethograph and Tambour :
The combination of these two items is used to record respiratory patterns, i.e rate, rhythm and amplitude during conditions :During * Talking
* Swallowing
* Speaking
* After Walking
* Breath Holding
* Hyper Ventilation
Use the Frontal Writing Point with Aluminum Stem and fixed the Kymograph Speed No: 3. and normal respiration, using two sets it is also possible to study chest and abdominal movements simultaneously under a variety of circumstance. (See drawing below).
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