Medical Equipment

Six Types of Diagnostic Medical Equipment

Modern clinicians have a huge army of helpers. We are talking about diagnostic medical equipment that can be divided into six main groups. What are they?

Diagnostic medical devices and supplies are aimed at measuring and observing different aspects of human health. With their help, clinicians are able to form a right diagnosis. Once it is made, clear, the doctor can prescribe an appropriate therapy.

Nowadays, every outpatient center, emergency room, intensive care unit and inpatient hospital is equipped with high-quality diagnostic devices of various types.

The following list of such equipment is not exhaustive. It includes only the most common medical tools used for detection of pathological cases and conditions.


One can name this group a symbol of medicine, as stethoscopes belong to the most recognizable medical tools. With the use of these appliances, clinicians can listen to heartbeat, lungs sounds and even blood flow.

Stethoscopes are helpful in diagnosing the following illnesses:

  • Heart disease;
  • Pneumonia;
  • Arrhythmia;
  • Bronchitis;
  • Heart palpations;
  • Heart valve problems.

Sometimes they are used together with a sphygmomanometer for measuring blood pressure.

Modern electronic stethoscopes let clinicians listen to the high-pitched and low-pitched sounds. Computer connection allows recording the results and saving the sounds. These files can be sent to other stethoscopes allowing other doctors listen to the same sounds and discuss them in order to make a right diagnosis. This opportunity is also helpful in training.


It is a well-known fact that the measure of blood pressure can help determine the condition of the whole body and the overall health of a patient.

Sphygmomanometers are used for measuring blood pressure, and the results help detect the following health problems:

  • Abnormal blood pressure;
  • Diabetes;
  • Arterial plaque;
  • Hypotension;
  • Artery hardening.

High blood pressure can be a symptom of several diseases. There are four types of medical appliances used for measuring blood pressure:

  • Manual sphygmomanometers are deemed the most reliable. They do not need routine calibration, so clinicians use this type of diagnostic equipment in high-risk scenarios.
  • Aneroid sphygmomanometers are not so reliable, as they can lose the calibration in case of bumping. Wall-mounted versions reduce this possibility, but they still need calibration checks. Aneroid devices have a mechanical unit, a bulb and an air valve.
  • Digital finger monitors are compact and easy to use. However, they are not so accurate.
  • Electronic sphygmomanometers can be inflated either automatically or manually. They measure mean arterial pressure that is then translated into an average of the diastolic and systolic pressure. Such appliances are very helpful in noisy places.


These handheld instruments allow clinicians examine the fundus of an eye. Ophthalmoscopes belong to the common equipment of physical or outpatient exams.

These appliances help determine:

  • Glaucoma;
  • Bacterial infections;
  • Detached retinas.

Direct ophthalmoscopes show an upright image of 15 times magnification. Indirect ophthalmoscopes give an inverted image of magnification from 2 to 5.


These appliances with a light on their heads enable clinicians see the ear canal and tympanic membrane scaled up.

Otoscopes help in detecting:

  • Tinnitus;
  • Ear infections;
  • Causes of dizziness and vertigo;
  • Swimmers ear;
  • Meniere’s disease.


Electrocardiographs are aimed at measuring the electrical activity of a patient’s heart. Using this device, a doctor can record heart rate and the regularity of its beat that are necessary for indication of any heart problems. By analyzing the results got from an electrocardiograph, a doctor can determine the position and the size of all heart chambers. These devices can also show the damages to the heart and control the impact of drug therapy or an implant.


These diagnostic devices are used not only in medical centers and in clinics, but also at home. They are very easy to use, especially modern electronic thermometers that can measure your temperature in a few seconds. In addition, they are very accurate and can show the temperature in the specific body part.