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Nucleus Limited
Nucleus Limited began as a private company in Sydney, Australia, in 1965. It was founded by former Watson-Victor executive Paul Murray Trainor, after acquisition of X-ray sales & service company Scientific & General. Other companies to be controlled by Nucleus and developed by Trainor were pacemaker pioneers Telectronics, cardiac monitor/ defibrillator manufacturer Medtel which was previously the instrument division of Telectronics, Ausonics a specialist in ultrasound imaging, medical instrument importer Domedica, and Cochlear Limited which developed the multichannel 'bionic ear' cochlear implant pioneered by Dr Graeme Clark AC. In 1982 Nucleus, by then a multinational company, was floated on the Australian stock exchange as Nucleus Limited with the Trainor family holding 50% of the issued stock. Control of Nucleus was gained by Pacific Dunlop Limited in 1988. Nucleus and Trainor are generally accorded recognition as the founders of bioengineering as an industry in Australia. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray
An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz ( to ) and energies in the range 145 eV to 124 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to as Röntgen radiation, after the German scientist Wilhelm Conrad Röntgen, who discovered it on November 8, 1895. He named it ''X-radiation'' to signify an unknown type of radiation.Novelline, Robert (1997). ''Squire's Fundamentals of Radiology''. Harvard University Press. 5th edition. . Spellings of ''X-ray(s)'' in English include the variants ''x-ray(s)'', ''xray(s)'', and ''X ray(s)''. The most familiar use of X-rays is checking for fractures (broken bones), but X-rays are also used in other ways. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artificial Pacemaker
An artificial cardiac pacemaker (or artificial pacemaker, so as not to be confused with the natural cardiac pacemaker) or pacemaker is a medical device that generates electrical impulses delivered by electrodes to the chambers of the heart either the upper atria, or lower ventricles to cause the targeted chambers to contract and pump blood. By doing so, the pacemaker regulates the function of the electrical conduction system of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's natural pacemaker is not fast enough, or because there is a block in the heart's electrical conduction system. Modern pacemakers are externally programmable and allow a cardiologist, particularly a cardiac electrophysiologist, to select the optimal pacing modes for individual patients. Most pacemakers are on demand, in which the stimulation of the heart is based on the dynamic demand of the circulatory system. Others send out a fixed rate of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telectronics
Telectronics Pty Ltd was an Australian company best known for its role in developing the pacemaker. It was located in Lane Cove, Sydney. In 1988 the business was acquired by Pacific Dunlop. and also However, legal claims resulting from the sale of faulty pacemaker electrode leads inherited by the company in acquisition of Cordis Corporation of Miami led to eventual sale of the assets of the company and Pacific Dunlop restructuring itself into Ansell. Development of the pacemaker Telectronics Pty Limited was incorporated in Sydney, Australia, in 1963"Telectronics and The History Of Pacemaking In Australia", Wickham G G, Jeffcoat KW, 1987 manuscript held by http://www.austehc.unimelb.edu.au. University Of Melbourne .(www.austehc.unimelb.edu.au.) by technician and initial financier Noel Gray and engineer Geoffrey Wickham initially designing and manufacturing industrial and scientific instruments but diversifying into medical electronics and commencing cardiac pacemaker research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiac
The heart is a muscular organ in most animals. This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs. In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest. In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria and lower left and right ventricles. Commonly the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart. Fish, in contrast, have two chambers, an atrium and a ventricle, while most reptiles have three chambers. In a healthy heart blood flows one way through the heart due to heart valves, which prevent backflow. The heart is enclosed in a protective sac, the pericardium, which also contains a small amount of fluid. The wall o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Monitor
In medicine, monitoring is the observation of a disease, condition or one or several medical parameters over time. It can be performed by continuously measuring certain parameters by using a medical monitor (for example, by continuously measuring vital signs by a bedside monitor), and/or by repeatedly performing medical tests (such as blood glucose monitoring with a glucose meter in people with diabetes mellitus). Transmitting data from a monitor to a distant monitoring station is known as telemetry or biotelemetry. Classification by target parameter Monitoring can be classified by the target of interest, including: * Cardiac monitoring, which generally refers to continuous electrocardiography with assessment of the patients condition relative to their cardiac rhythm. A small monitor worn by an ambulatory patient for this purpose is known as a Holter monitor. Cardiac monitoring can also involve cardiac output monitoring via an invasive Swan-Ganz catheter. * Hemodynamic monitori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defibrillator
Defibrillation is a treatment for life-threatening cardiac arrhythmias, specifically ventricular fibrillation (V-Fib) and non-perfusing ventricular tachycardia (V-Tach). A defibrillator delivers a dose of electric current (often called a ''counter-shock'') to the heart. Although not fully understood, this process depolarizes a large amount of the heart muscle, ending the arrhythmia. Subsequently, the body's natural pacemaker in the sinoatrial node of the heart is able to re-establish normal sinus rhythm. A heart which is in asystole (flatline) cannot be restarted by a defibrillator, but would be treated by cardiopulmonary resuscitation (CPR). In contrast to defibrillation, synchronized electrical cardioversion is an electrical shock delivered in synchrony to the cardiac cycle. Although the person may still be critically ill, cardioversion normally aims to end poorly perfusing cardiac arrhythmias, such as supraventricular tachycardia. Defibrillators can be external, transvenou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cochlear Limited
Cochlear is a medical device company that designs, manufactures, and supplies the Nucleus cochlear implant, the Hybrid electro-acoustic implant and the Baha bone conduction implant. Based in Sydney, Cochlear was formed in 1983 as a subsidiary of Nucleus with finance from the Australian government to commercialise the implants pioneered by Dr. Graeme Clark, although the company later became separate. As of 2022, the company holds 50% of the cochlear implant market, with more than 250,000 people receiving one of Cochlear's implants as of 2015. Cochlear was named Australia's most innovative company by the Intellectual Property Research Institute of Australia in 2002 and 2003, and one of the world's most innovative companies by ''Forbes'' in 2011. History Corporate affairs Cochlear was originally founded in 1983 as a subsidiary of Nucleus, a medical electronics company founded in 1964. Previously in 1981 Nucleus received a grant from the Australian government to commercial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cochlear Implant
A cochlear implant (CI) is a surgically implanted neuroprosthesis that provides a person who has moderate-to-profound sensorineural hearing loss with sound perception. With the help of therapy, cochlear implants may allow for improved speech understanding in both quiet and noisy environments. A CI bypasses acoustic hearing by direct electrical stimulation of the auditory nerve. Through everyday listening and auditory training, cochlear implants allow both children and adults to learn to interpret those signals as speech and sound. The implant has two main components. The outside component is generally worn behind the ear, but could also be attached to clothing, for example, in young children. This component, the sound processor, contains microphones, electronics that include digital signal processor (DSP) chips, battery, and a coil that transmits a signal to the implant across the skin. The inside component, the actual implant, has a coil to receive signals, electronics, and an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graeme Clark (doctor)
Graeme Milbourne Clark AC (born 16 August 1935) is an Australian Professor of Otolaryngology at the University of Melbourne. His work in ENT surgery, electronics and speech science contributed towards the development of the multiple-channel cochlear implant. His invention was later produced and sold by Cochlear Limited. Early life and education Clark was born in Camden, New South Wales, to parents Colin and Dorothy Clark. He has one younger sister. Clark was educated at The Scots College and studied medicine at Sydney University. He specialized in ear, nose and throat surgery at the Royal National Throat, Nose and Ear Hospital and obtained a fellowship in 1964 from the Royal College of Surgeons, London. Clark returned to Australia and became a Fellow of the Royal Australian College of Surgeons and in 1969 completed his PhD at the University of Sydney on "Middle Ear & Neural Mechanisms in Hearing and in the Management of Deafness". At the same time, he completed a Master of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of Australia
The Order of Australia is an honour that recognises Australian citizens and other persons for outstanding achievement and service. It was established on 14 February 1975 by Elizabeth II, Queen of Australia, on the advice of the Australian Government. Before the establishment of the order, Australian citizens received British honours. The Monarch of Australia is sovereign head of the order, while the Governor-General of Australia is the principal companion/dame/knight (as relevant at the time) and chancellor of the order. The governor-general's official secretary, Paul Singer (appointed August 2018), is secretary of the order. Appointments are made by the governor-general on behalf of the Monarch of Australia, based on recommendations made by the Council of the Order of Australia. Recent knighthoods and damehoods were recommended to the governor-general by the Prime Minister of Australia. Levels of membership The order is divided into a general and a military division. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ansell
Ansell is an Australian company which manufactures protective industrial and medical gloves. It was previously well known as a condom manufacturer but sold that division in 2017. History Early years Ansell was formed as Dunlop Pneumatic Tyre Company of Australasia Ltd in 1899, when the Dunlop Pneumatic Tyre Company of the United Kingdom incorporated its Australian branch, formed in 1893, and floated it on the Australian stock exchanges. In 1906 the company changed its name to the Dunlop Rubber Company of Australasia Ltd, and in 1929 changed it again, following a merger with the Perdriau Rubber Company, to Dunlop Perdriau Ltd. At this time the company's main business was the production of automobile tyres. The company expanded into other rubber products, including footwear in 1948. In 1967, the company changed its name to Dunlop Australia, and continued to dive In 1969 Dunlop Australia acquired the Ansell Rubber Company, which had been founded in 1929 (originally as E. N. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
