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M81-S: Lung Sound Auscultation Trainer "LSAT"

Item code: 11241-019E

Lung sound auscultation is one of the essential steps in chest examination. This skill requires three areas of expertise: listening to the sounds of a patient's chest with precise use of stethoscope, having a clear understanding of sound variations and describing the sounds clearly to others. LSAT supports training for students and users for crucial relations between sounds and auscultation sites that play an important role in giving an accurate diagnosis.


Download Product Descriptions:

pdf_icon User Manual                    


Accurate location and spread of lung soundsactual_stethoscopes
  • 15 speakers are located in the torso manikin (seven in the anterior, eight in the posterior), each speaker playing back sounds distinct to each auscultation area. Speakers are completely synchronized.
  • The torso rotates on a base, allowing examination of both the front and back as in a real clinical procedure. Personal and actual stethoscopes can be used for training (stethoscopes not included in the unit). 
Efficient selection of the casesexplination_window 
  • Cases are carefully selected for educational purposes based on classification standards of the American Thoracic Society. Explanation windows for each case can be referred to on the monitor. General descriptions contain clinical data of the individual cases such as patient history, illustrations, radiographs and CT images. 
Outstanding sound qualityspeakers
  • Cases are recorded from actual patient and computer synchronization of all outputs is possible. The external speaker system facilitates an ideal environment for demonstrations and group studies. 
Anterior area Posterior area
  • 1 - Trachea
  • 2 - Upper right lung field
  • 3 - Upper left lung field
  • 4 - Middle right lung field
  • 5 - Middle left lung field
  • 6 - Lower right lung field
  • 7 - Lower left lung field
  • 0 - Upper left lung field
  • 1 - Upper right lung field
  • 2 - Middle right lung field
  • 3 - Middle left lung field
  • 4 - Lower left lung field
  • 5 - Lower right lung field
  • 6 - Right costophrenic angle
  • 7 - Left costophrenic angle





Packing size


LSAT model unit


32 x 35 x 62H cm, 10 kg

51 x 46 x 80cm, 10 kg

Torso with rotary base
15 built-in speakers
8 ch. amplifier



59 x 59 x 40cm, 15kg

Windows XP, 12ch. D/A
PCI board, mouse, 112 keyboard, 15" TFT monitor
*Software & data installed



32 x 35 x 8H cm

46 x 46 x 15cm, 10 kg

AC 120-240V




62 x 41 x 40cm, 20kg (including monitor)



One-size only

15 built-in speakers
8 ch. amplifier



Coarse Crackels

Fine Crackes

Mildly weak
Mildly strong
Mildly rapid
Loud heart sounds

Weak: left lower area
Weak: left whole area
Absent: left
Weak: right lower area
Weak: right whole area
Absent: right
Weak: whole thorax
Bronchial sounds

Right lower area
Both lower areas
Right middle area
Left lower area
Both upper area
Whole thorax

Both lower areas
Both lower and middle area
Whole thorax 1
Whole thorax 2



Continuous sounds


Upper and middle area
Around trachea and upper area 1
Around trachea and upper area 2 (polyphone)

Trachea and upper area
Trachea and upper area (polyphonic)
With an inspiratory wheeze
Whole thorax


Pleural friction rub: left lower area
Pleural friction rub: right lower and middle area
Hamman's sign
Vocal fremitus (palpable atboth sides of the chest)

*The classification of lung sounds is based on the criteria of the American Thoracic Society.

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