Medical instrumentsShort notes on each instrument.

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giorgiana1976's profile pic

giorgiana1976 | College Teacher | (Level 3) Valedictorian

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 Medical apparatus and instruments for measuring and control:

Mechanical Balance

 Digital Balance

Peak Flow Meter(Mechanical and Electronic)-It is a tool to measure lung function,evaluation of airflow limitation  and help diagnose and monitor asthma.

Spirometer-for non-invasive testing of lung capacity and for easy and comfortable management of patients' information and records.

Waistmeters-measuring the length of baby infants.

Tonometer-intended for determining intraocular pressure.

Pulseoxymeter-For measuring oxygen saturation of hemoglobin in arterial blood.


Reflex hammer- is testing tendon reflexis in neurological examinations

Dermatoscope-Used to examine the skin surface.

Diapasone Vascular or Fetal Doppler - is used to detect the heart beats.

Ultrasound Laryngoscope- used to check vocal folds and glottis

Ophthalmoscope-used to checkthe eye

krishna-agrawala's profile pic

krishna-agrawala | College Teacher | (Level 3) Valedictorian

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A medical instrument is any physical device used for medical purposes in patients. These include a wide range of products numbering in thousands. The medial instruments are used for a variety of purposes such as diagnosis, prevention, monitoring, treatment or alleviation of disease, and alleviation of or compensation for an injury or handicap.

It is not possible to describe or even list all the medical instruments used. However I am giving below is an illustrative list of a wide range of medical instruments.

Anesthesia ventilators

Anesthesia units

Apnea monitors

Argon enhanced coagulation units


Auto transfusion units

Breast pumps



Electrosurgical units


External pacemaker

Fetal monitors

Heart Lung Machine

Invasive Blood pressure units


Infusion pump

Laparoscopic insufflators

Lytic Bacteriophages


Phototherapy units

Pulse oximeters

Radiant warmers

Surgical drill and saws

Surgical microscope

Surgical lights

Surgical table



Tongue depressors


Ultrasonic nebulizers

Ultrasound sensors X-ray machines

ct-bio's profile pic

ct-bio | (Level 2) eNoter

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Sensory Testings

Tactile Sensation

Common neuropathy (diabetes to lacerations)

Monofilament esthesiometry is used to determine tactile sensation.  The Semmes-Weinstein Monofilaments was the typical instrument employed.  An enhancement to these monofilaments was also created by Weinstein -- Weinstein Enhanced Sensory Test (WEST).  Affordable subsets may be purchased from medical distributors in the USA.  Two popular sets of forces are presented in the WEST-hand and the WEST-foot.  The WEST uses "Softip" monofilaments, which provide a more consistent "touch" stimulus.

Weinstein, S. (1993). Fifty years of somatosensory research: From the Semmes-Weinstein Monofilaments to the Weinstein Enhanced Sensory Test. Journal of Hand Therapy, 6(1), 11-22.

Jerosch-Herold (20030 A study of the relative responsiveness of five sensibility tests for the assessment of recovery after median nerve injury and repair.  J. Hand Surg [Br]. 2003 Jun; 28(3):255-60.

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