Stethograph (Complete Apparatus)

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,

  1. 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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