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Bragg-Paul Pulsator
The Bragg-Paul Pulsator, also known as the Bragg-Paul respirator, was a non-invasive medical ventilator invented by William Henry Bragg and designed by Robert W. Paul in 1933 for patients unable to breathe for themselves due to illness. It was the first 'Intermittent Abdominal Pressure Ventilator' (IAPV). Design The Pulsator applied pressure externally upon the body to force exhalation, and the natural elasticity of the chest and the weight of the internal organs upon the diaphragm produced inhalation when that external pressure was removed. This method is now described as 'intermittent abdominal pressure ventilation', in contrast to negative pressure ventilators, commonly called 'iron lungs', that force inhalation and rely on chest elasticity to produce exhalation. Bragg came up with the idea for the machine to help a friend suffering from muscular dystrophy. His first version comprised a football bladder strapped to the patient's chest connected to a second football bladder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Ventilator
A ventilator is a piece of medical technology that provides mechanical ventilation by moving breathable air into and out of the lungs, to deliver breaths to a patient who is physically unable to breathe, or breathing insufficiently. Ventilators are computerized microprocessor-controlled machines, but patients can also be ventilated with a simple, hand-operated bag valve mask. Ventilators are chiefly used in intensive-care medicine, home care, and emergency medicine (as standalone units) and in anesthesiology (as a component of an anesthesia machine). Ventilators are sometimes called "respirators", a term commonly used for them in the 1950s (particularly the "Bird respirator"). However, contemporary medical terminology uses the word "respirator" to refer instead to a face-mask that protects wearers against hazardous airborne substances. Function In its simplest form, a modern positive pressure ventilator, consists of a compressible air reservoir or turbine, air and oxygen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poliomyelitis
Poliomyelitis, commonly shortened to polio, is an infectious disease caused by the poliovirus. Approximately 70% of cases are asymptomatic; mild symptoms which can occur include sore throat and fever; in a proportion of cases more severe symptoms develop such as headache, neck stiffness, and paresthesia. These symptoms usually pass within one or two weeks. A less common symptom is permanent paralysis, and possible death in extreme cases.. Years after recovery, post-polio syndrome may occur, with a slow development of muscle weakness similar to that which the person had during the initial infection. Polio occurs naturally only in humans. It is highly infectious, and is spread from person to person either through fecal-oral transmission (e.g. poor hygiene, or by ingestion of food or water contaminated by human feces), or via the oral-oral route. Those who are infected may spread the disease for up to six weeks even if no symptoms are present. The disease may be diagnosed by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Ventilation
Mechanical ventilation, assisted ventilation or intermittent mandatory ventilation (IMV), is the medical term for using a machine called a ventilator to fully or partially provide artificial ventilation. Mechanical ventilation helps move air into and out of the lungs, with the main goal of helping the delivery of oxygen and removal of carbon dioxide. Mechanical ventilation is used for many reasons, including to protect the airway due to mechanical or neurologic cause, to ensure adequate oxygenation, or to remove excess carbon dioxide from the lungs. Various healthcare providers are involved with the use of mechanical ventilation and people who require ventilators are typically monitored in an intensive care unit. Mechanical ventilation is termed invasive if it involves an instrument to create an airway that is placed inside the trachea. This is done through an endotracheal tube or nasotracheal tube. For non-invasive ventilation in people who are conscious, face or nasal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artificial Ventilation
Artificial ventilation (also called artificial respiration) is a means of assisting or stimulating respiration, a metabolic process referring to the overall exchange of gases in the body by pulmonary ventilation, external respiration, and internal respiration. It may take the form of manually providing air for a person who is not breathing or is not making sufficient respiratory effort, or it may be mechanical ventilation involving the use of a mechanical ventilator to move air in and out of the lungs when an individual is unable to breathe on their own, for example during surgery with general anesthesia or when an individual is in a coma or trauma. Types Manual methods Pulmonary ventilation (and hence external parts of respiration) is achieved through manual insufflation of the lungs either by the rescuer blowing into the patient's lungs (mouth-to-mouth resuscitation), or by using a mechanical device to do so. This method of insufflation has been proved more effective than m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intermittent Positive Pressure Ventilation
Intermittency is a behavior of dynamical systems: regular alternation of phases of apparently periodic and chaotic dynamics. Intermittent or intermittency may also refer to: *Intermittent river or stream, the one that ceases to flow every year or at least twice every five years *Intermittent energy source, renewable energy sources that are not dispatchable due to their fluctuating nature *Intermittent fault, malfunction of a device or system that occurs at intervals, usually irregular *Fluorescence intermittency, or blinking, is random switching between ON (bright) and OFF (dark) states *Intermittent control Intermittent control is a feedback control method which not only explains some human control systems but also has applications to control engineering. In the context of control theory, intermittent control provides a spectrum of possibilities bet ..., possibilities between the two extremes of continuous-time and discrete-time control: the control signal See also * * { ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tracheostomy
Tracheotomy (, ), or tracheostomy, is a surgical airway management procedure which consists of making an incision (cut) on the anterior aspect (front) of the neck and opening a direct airway through an incision in the trachea (windpipe). The resulting stoma (hole) can serve independently as an airway or as a site for a tracheal tube or tracheostomy tube to be inserted; this tube allows a person to breathe without the use of the nose or mouth. Etymology and terminology The etymology of the word ''tracheotomy'' comes from two Greek words: the root ''tom-'' (from Greek τομή ''tomḗ'') meaning "to cut", and the word ''trachea'' (from Greek τραχεία ''tracheía''). The word ''tracheostomy'', including the root ''stom-'' (from Greek στόμα ''stóma'') meaning "mouth," refers to the making of a semi-permanent or permanent opening, and to the opening itself. Some sources offer different definitions of the above terms. Part of the ambiguity is due to the uncertainty of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genericized Trademarks
A generic trademark, also known as a genericized trademark or proprietary eponym, is a trademark or brand name that, because of its popularity or significance, has become the generic term for, or synonymous with, a general class of products or services, usually against the intentions of the trademark's owner. A trademark is said to become ''genericized''—or, informally, to have suffered ''genericide''—when it begins as a distinctive product identifier but changes in meaning to become generic. This typically happens when the products or services which the trademark is associated with have acquired substantial market dominance or mind share, such that the primary meaning of the genericized trademark becomes the product or service itself rather than an indication of source for the product or service. A trademark thus popularised has its legal protection at risk in some countries such as the United States and United Kingdom, as its intellectual property rights in the trademar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Lung
An iron lung is a type of negative pressure ventilator (NPV), a mechanical respirator which encloses most of a person's body, and varies the air pressure in the enclosed space, to stimulate breathing.Shneerson, Dr. John M., Newmarket General Hospital, ( Newmarket, Suffolk, U.K.)"Non-invasive and domiciliary ventilation: negative pressure techniques,"#5 of series "Assisted ventilation" in ''Thorax,'' 1991;46:131–35, retrieved April 12, 2020Rockoff, Mark, M.D."The Iron Lung and Polio," video (8 minutes), January 11, 2016, OPENPediatrics and Boston Children's Hospital on YouTube, retrieved April 11, 2020 (historical background and images, explanatory diagrams, and live demonstrations)Jackson, Christopher D., MD, Dept. of Internal Medicine, and Muthiah P Muthiah, MD, FCCP, D-ABSM, Assoc. Prof. of Medicine, Div. of Pulmonary / Critical Care / Sleep Medicine, Univ. of Tennessee College of Medicine-Memphis, et.al."What is the background of the iron lung form of mechanical ventila ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cork Street Fever Hospital, Dublin
The Cork Street Fever Hospital ( ga, Ospidéal Fiabhrais Shráid Chorcaí), also known as the House of Recovery, was a hospital located in Cork Street in Dublin, Ireland. History The original hospital, which was located in a poor densely populated part of the Liberties but with large grounds, was designed by Samuel Johnston and built by Henry, Mullins & McMahon. It consisted of two parallel brick buildings, , three stories high, connected by a colonnade of . The eastern range was used for fever, the western for convalescent patients, in order to keep the patients separated. It opened on 14 May 1804. The objectives of the hospital were to care for the diseased in the neighbourhood and prevent the spread of infection in the homes of the poor.Bennett, p. 74 An additional building, much larger than any of the former, was added in 1814, by which the hospital was rendered capable of containing 240 beds. The hospital initially accepted fever patients from five parishes in the Liberties. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lord Nuffield
William Richard Morris, 1st Viscount Nuffield, (10 October 1877 – 22 August 1963) was an English motor manufacturer and philanthropist. He was the founder of Morris Motors Limited and is remembered as the founder of the Nuffield Foundation, the Nuffield Trust and Nuffield College, Oxford, as well as being involved in his role as President of BUPA in creating what is now Nuffield Health. He took his title from the village of Nuffield in Oxfordshire, where he lived. Initially Morris Motors relied heavily on Oxford's local labour force, and William Morris became the largest employer in the city. However during the 1920s and 1930s, Oxford saw a dramatic size and population increase following large numbers of unemployed people from depressed areas of Britain seeking work in Morris's factories. This time period was marked with frequent attempts of industrial action protesting against the low pay and poor working conditions in Morris's factories. The first successful strike in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Research Council (United Kingdom)
The Medical Research Council (MRC) is responsible for co-coordinating and funding medical research in the United Kingdom. It is part of United Kingdom Research and Innovation (UKRI), which came into operation 1 April 2018, and brings together the UK's seven research councils, Innovate UK and Research England. UK Research and Innovation is answerable to, although politically independent from, the Department for Business, Energy and Industrial Strategy. The MRC focuses on high-impact research and has provided the financial support and scientific expertise behind a number of medical breakthroughs, including the development of penicillin and the discovery of the structure of DNA. Research funded by the MRC has produced 32 Nobel Prize winners to date. History The MRC was founded as the Medical Research Committee and Advisory Council in 1913, with its prime role being the distribution of medical research funds under the terms of the National Insurance Act 1911. This was a conseq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Both Respirator
The Both respirator, also known as the ''Both Portable Cabinet Respirator'', was a negative pressure ventilator (more commonly known as an "iron lung") invented by Edward Both in 1937. Made from plywood, the respirator was an affordable alternative to the more expensive designs that had been used prior to its development, and accordingly came into common usage in Australia. More widespread use emerged during the 1940s and 1950s, when the Both respirator was offered free of charge to Commonwealth hospitals by William Morris. Development In 1937 Australia faced a poliomyelitis (polio) epidemic. At the time iron lungs provided one of the main methods of treating the "paralytic breathing failures" that were a complication of the illness. Although tank respirators had been developed earlier, the iron lung itself was still fairly new, having been designed by Philip Drinker and Louis Agassiz Shaw in 1928. Their design, which became known as a "Drinker's" or, due to its construction, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
