How Does Ultrasound Therapy Work?
Ultrasound; noise waves vibrating at frequencies over those that the human ear can hear, above 20,000 cycles per secondly (hertz, Hz).
Healing ultrasound is that which is made use of for therapeutic (rather than diagnostic) functions and also is generally created at 1 million cycles per second or 1 megacycle (MHz). Typically United States regularity is in between 0.7 as well as 3.3 MHz.
Ultrasound was first investigated in Europe and also was introduced to the USA in the early 1950′ s, considering that this time, using ultrasound has expanded, and it continues to be a really preferred method today.
Device of activity
US is generated by a high-frequency alternating present being related to a crystal made of quartz or an artificial (i.e. barium titanate or lead zirconate). The present creates the crystal to flex, initially in one instructions and after that the various other, as the present alternates. This contortion of the crystal produces what is called piezoelectric energy. The resonance energy is transferred to a steel plate, generally nickel-plated brass, and after that the patient’s cells. The crystal and also steel plate are housed in the transducer or sound head of the unit.
It is not sent with a vacuum
It is sent badly through gases
It is sent best through high-density solids and gas-free fluids
Similar to a radio transmitter.
Has an oscillator that generates electromagnetic wave at high regularities.
Converts electro-magnetic waves into audio waves.
Larger transducer surface area is much better (7-13cm *), but tiny sufficient to maintain skin contact.
Waves are produced in a round beam perpendicular to traducer surface. Hold the transducer head parallel to tissue surface.
Never allow the beam to fire directly into the air without gel or water as this may harm the crystal.
To evaluate crystal: water on the head, transform up the strength the water need to stream.
Air does not perform well, should use a combining tool. Make use of a commercial gels, not mineral oil as well as some gels will consist of compounds that can advertise healing such as, vit E, aloe.
As United States travels through human tissue, it gradually decreases in intensity due to attenuation. Attenuation is the outcome of representation, absorption and refraction, with absorption accounting for regarding half of depletion.
– Proteins are the major absorbers of US
– Boost protein content rise absorption
– Tissues with high water material decrease absorption (waves travel through).
– Uniform cells reduce absorption (fat).
– Heterogeneous tissues, fascia aircrafts increase absorption.
e.g. bone periosteum, fat muscular tissue, diff muscle mass groups.
– Bone mirrors waves, which fulfill inbound waves: resonance for that reason warmth manufacturing (periosteal burning).
– Metal artefacts reflects waves yet soak up warmth consequently caution.
Conversion of the Ð¾Ñ‚ÐºÑ€Ð¸Ð¹Ñ‚Ðµ Ñ‚Ð¾Ð²Ð° power people into warm is revealed as an absorption coefficient as well as is reliant on tissue type and also frequency. This coefficient is shared in decibels/cm as well as is greatest for cells with the Ñ‚Ð°Ð·Ð¸ Ñ…Ð¸Ð¿ÐµÑ€Ð²Ñ€ÑŠÐ·ÐºÐ° highest collagen content and also boost symmetrical to the United States frequency.
US is ÐºÐ»Ð¸ÐºÐ½ÐµÑ‚Ðµ Ð²ÑŠÑ€Ñ…Ñƒ ÑÐ»ÐµÐ´Ð²Ð°Ñ‰Ð°Ñ‚Ð° ÑÑ‚Ñ€Ð°Ð½Ð¸Ñ†Ð° created by a high-frequency rotating current being used to a crystal made of quartz or a synthetic (i.e. barium titanate or lead zirconate). The current causes the crystal to flex, initially in one instructions and also after that the other, as the current alternates. This deformation of the crystal creates what is called piezoelectric energy. The vibration energy is moved to a steel plate, generally nickel-plated brass, and also after that the individual’s tissue. The crystal and also metal plate are housed in the transducer or sound head of the unit.