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Electrohydraulic lithotripsy is an industrial technique for fragmenting rocks by using electrodes to create shockwaves. It was applied to bile duct stones in 1975. It can damage tissue and is mostly used in biliary tract specialty centers. Pneumatic mechanical devices have been used with endoscopes, commonly for large and hard stones. [7]
Electrohydraulic Lithotripsy (EHL) is a medical procedure which uses targeted shockwaves to break up kidney stones and gallstones. [1] This form of extracorporeal lithotripsy is unique in that the shockwaves are produced by a vaporization bubble expanding and collapsing repeatedly, creating a pressure wave. [1]
The development of the Dornier lithotripter progressed through several prototypes, ultimately culminating in February 1980 with the first treatment of a human by shockwave lithotripsy (SWL). The production and distribution of the Dornier HM3 lithotripter began in late 1983, and SWL was approved by the U.S. Food and Drug Administration in 1984. [26]
John Boyd Dunlop (5 February 1840 – 23 October 1921) was a Scottish inventor and veterinary surgeon who spent most of his career in Ireland. Familiar with making rubber devices, he invented the first practical pneumatic tyres for his child's tricycle and developed them for use in cycle racing.
Pneumatic rappers can be either type, vibratory or impact. Tumbling hammers , typically used in conjunction with rigid frame discharge electrodes, are highly efficient but require a lot of maintenance when employed in a moving gas stream.
Laser lithotripsy (LL) has been evaluated against Extracorporeal Shock Wave lithotripsy (ESWL), finding both to be safe and effective. [3] [4] ESWL may be safer for small stones (<10 mm), but less effective for 10–20 mm stones. [3]
The LUCAS can be used both in and out of the hospital setting. [6] [7] The 2015 European Resuscitation Council Guidelines for Resuscitation does not recommend using mechanical chest compression on a routine basis, but are good alternative for situations where it may be difficult or to maintain continuous high-quality compressions, or when it may be too strenuous on the medic to do so. [8]
Pneumatic engines also have lower weights than electric engines. Refueling is possible in many places using only wind, solar power or hydropower to move an air compressor, hydraulic pump or Stirling engine. Pneumatic power has energy synergy, because it is well suited to automotive mechatronics. Many car systems can be powered by small air motors.
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