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An instrument for measuring the arterial blood pressure.



an instrument for measuring the arterial blood pressure indirectly. There are two types of sphygmomanometer: the mercury, or Riva-Rocci sphygmomanometer, named after the Italian pediatrician S. Riva-Rocci, who designed it in 1896, and the membrane sphygmomanometer, generally called a tonometer.

The sphygmomanometer has a manometer and is equipped with a rubber pressure cuff covered with closely woven cloth, a pressure bulb with air valves, T-pipe, and a screw valve for reducing pressure. The auscultatory, or acoustic, method of N. S. Korotkov is the usual method of measuring arterial pressure indirectly. The pressure cuff is generally wrapped around the shoulder and inflated with air in order to compress the brachial artery and arrest the flow of blood in it. The capsule of a phonendoscope is positioned at the anterior part of the elbow joint, and air is gradually released from the cuff; a note is made of the manometer reading at which Korotkov sounds are audible in the phonendoscope. At this moment, the pressure in the cuff corresponds to the systolic (maximum) blood pressure in the brachial artery. The sounds disappear as more air is released from the cuff. At the moment when the sounds cease, the pressure is equal to the diastolic (minimum) pressure. Automatic devices have been designed to monitor blood pressure in seriously ill persons. They are modeled on the sphygmomanometer and detect sounds by means of a microphone.


References in periodicals archive ?
Our BioArmour Blood Pressure Cuff Shield is a proactive measure that helps hospitals and healthcare facilities support their infectious disease reduction and control efforts," says Biovation CEO Kerem Durdag.
With that in mind, we have applied our expertise in blood pressure measurement to the design of our new line of disposable blood pressure cuffs," Monk said.
Choosing a correctly sized blood pressure cuff is essential.
Introduction of the blood pressure cuff into US medical practice: technology and skilled practice.
Doctors space four monitoring electrodes along the arm and apply a blood pressure cuff on top of two of the electrodes near the shoulder.
Book had placed a blood pressure cuff on his left arm, which was contraindicated due to the presence of a pre-existing peripherally inserted central catheter (PICC) line in his left arm.
I've always been very into space and wanted to learn about medicine,'' she said, readying a blood pressure cuff for a pre-landing check of the astronauts.
With any dialysis patient, the dental assistant should question the patient regarding the location of their graft(s) and decide where it is safe to place the blood pressure cuff.
The ER staff attached a blood pressure cuff to me and called the code blue team, which surrounded me all night watching for cardiac arrest from heart failure due to low blood pressure.
Using a tiny monitor that connects to clinical equipment such as a blood pressure cuff, patient's readings are transmitted during the tele-visit to the physician, case manager or home health care professional.
Viterion TeleHealthcare presented a half-dozen devices, including a blood pressure cuff, a blood glucose meter, a thermometer, and a spirometer that can be tied into a long-distance monitoring system, while the Georgia Institute of Technology featured an entire "Aware House" that allows a distant caregiver to track physical activity in every room of a residence.
We invite all our readers who use the eye drops Timolol or Timoptic for glaucoma to participate in an experiment using a blood pressure cuff or automatic monitor to measure their blood pressure levels morning and night.