The Ishihara test is the most well-known color blindness test allaround 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.
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).
The AWS Student Kymograph is very reliable instrument for use in the study of physiology, pharmacology and Biological Science. There are two instrument model available and each is provided with a series of advance features. The instrument are available with or without stimulator. There is a range of accessories two suit most applications. Illustrated with the kymograph below is one suggested kit or assembly of the more popular accessories.
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
Download: ALPHA
The new generation Vitalograph ALPHA Touch is an easy to use, lightweight desktop spirometer that offers the benefits of portability, data integration and a built in printer. The ALPHA Touch features a precise and robust Fleisch pneumotachograph and a simple icon driven menu, plus a large, high resolution colour touch-screen and storage capacity for 10,000 subjects.
Manual entry of subject data is optional as ALPHA Touch automatically copies all subject data from Spirotrac – saving time and eliminating data entry errors.
Abdul Wahab & Sons provides advanced scientific and medical education solutions, including VR/AR, holograms, 3D Anatomy Tables, and PowerLab systems. AWS serve hospitals, research labs, medical schools, and universities with precision instruments, skill labs, and immersive learning tools empowering the future of healthcare and science.
