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Letitia Mumford Geer
Letitia Mumford Geer (1852– July 18, 1935) was an American nurse who invented the one-hand medical syringe. Early life Geer was born in 1852 in New York City to George Warren Geer and Cornelia Matilda Geer (nee Mumford); Letitia Geer was one of four children. Career After spending a few years teaching, Geer moved to Chicago, where she met her husband, Charles Geer, a businessman who was involved in the manufacturing of surgical instruments. Geer also helped her husband in his business; she thought that the syringes being manufactured were difficult to use because they were often imprecise and unsanitary. This influenced her to create a more precise syringe. On February 12, 1896, Geer filed for a patent for the one-handed medical syringe design. Her design was given a patent three years later under the publication number 'US622848A', in 1899. Some hospitals prefer to use other methods. At the time, there were also other companies that started to produce syringes that were c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive with a respective county. The city is the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the United States by both population and urban area. New York is a global center of finance and commerce, culture, technology, entertainment and media, academics, and scientific output, the arts and fashion, and, as home to the headquarters of the United Nations, international diplomacy. With an estimated population in 2024 of 8,478,072 distributed over , the city is the most densely populated major city in the United States. New York City has more than double the population of Los Angeles, the nation's second-most populous city. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklyn, New York
Brooklyn is a Boroughs of New York City, borough of New York City located at the westernmost end of Long Island in the New York (state), State of New York. Formerly an independent city, the borough is coextensive with Kings County, one of twelve original counties established under English rule in 1683 in what was then the Province of New York. As of the 2020 United States census, the population stood at 2,736,074, making it the most populous of the five boroughs of New York City, and the most populous Administrative divisions of New York (state)#County, county in the state.Table 2: Population, Land Area, and Population Density by County, New York State - 2020 New York State Department of Health. Accessed January 2, 2024. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syringe
A syringe is a simple reciprocating pump consisting of a plunger (though in modern syringes, it is actually a piston) that fits tightly within a cylindrical tube called a barrel. The plunger can be linearly pulled and pushed along the inside of the tube, allowing the syringe to take in and expel liquid or gas through a discharge orifice at the front (open) end of the tube. The open end of the syringe may be fitted with a hypodermic needle, a nozzle or tubing to direct the flow into and out of the barrel. Syringes are frequently used in clinical medicine to administer injections, infuse intravenous therapy into the bloodstream, apply compounds such as glue or lubricant, and draw/measure liquids. There are also prefilled syringes (disposable syringes marketed with liquid inside). The word "syringe" is derived from the Greek σῦριγξ ('' syrinx'', meaning "Pan flute", "tube"). Medical syringes Medical syringes include disposable and safety syringes, injectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of United States cities by population, third-most populous city in the United States after New York City and Los Angeles. As the county seat, seat of Cook County, Illinois, Cook County, the List of the most populous counties in the United States, second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents. Located on the shore of Lake Michigan, Chicago was incorporated as a city in 1837 near a Chicago Portage, portage between the Great Lakes and the Mississippi River, Mississippi River watershed. It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasal Speculum
A speculum (Latin for 'mirror'; : specula or speculums) is a medical tool for investigating body orifices, with a form dependent on the orifice for which it is designed. In old texts, the speculum may also be referred to as a diopter or dioptra. Like an endoscope, a speculum allows a view inside the body; endoscopes, however, tend to have optics while a speculum is intended for direct vision. History Vaginal and anal specula were used by the ancient Greeks and Romans, and speculum artifacts have been found in Pompeii. The modern vaginal speculum, developed by J. Marion Sims, consists of a hollow cylinder with a rounded end that is divided into two hinged parts, somewhat like the beak of a duck. This speculum is inserted into the vagina to dilate it for examination of the vagina and cervix. A more modern vaginal speculum was developed by Marie Boivin (1773–1841), a French midwife, inventor, and obstetrics writer who has been called one of the most important women in medicin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retractor (medicine)
A retractor is a surgical instrument used to separate the edges of a surgical incision/wound or to hold away certain organs and tissues (i.e. to provide tissue ''retraction'') so that body parts underneath may be accessed during surgical operations. The broad term ''retractor'' typically describes a simple steel tool possessing a curved, hooked, or angled blade, which is manually manipulated to help maintain a desired position of tissue during surgery. More sophisticated retractors may be clamped in place (usually to a tableside frame) or suspended at the end of a robotic arm. Retractors can also be "self-retaining" and no longer need to be held once inserted, having two or more opposing blades or hooks which are separated via spring, ratchet, worm gear or other method. The term ''retractor'' is also used to describe distinct, hand-cranked devices such as rib spreaders (also known as thoracic retractors, or distractors) with which surgeons may use to forcefully drive tissues apa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National American Woman Suffrage Association
The National American Woman Suffrage Association (NAWSA) was an organization formed on February 18, 1890, to advocate in favor of women's suffrage in the United States. It was created by the merger of two existing organizations, the National Woman Suffrage Association (NWSA) and the American Woman Suffrage Association (AWSA). Its membership, which was about seven thousand at the time it was formed, eventually increased to two million, making it the largest voluntary organization in the nation. It played a pivotal role in the passing of the Nineteenth Amendment to the United States Constitution, which in 1920 guaranteed women's right to vote. Susan B. Anthony, a long-time leader in the suffrage movement, was the dominant figure in the newly formed NAWSA. Carrie Chapman Catt, who became president after Anthony retired in 1900, implemented a strategy of recruiting wealthy members of the rapidly growing women's club movement, whose time, money and experience could help build the su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
One-handed Syringe Design
Catch may refer to: In sports * Catch (game), children's game * Catch (baseball), a maneuver in baseball * Catch (cricket), a mode of dismissal in cricket * Catch or reception (gridiron football) * Catch, part of a rowing stroke * Catch wrestling, a combat sport * Catch, anglicism for professional wrestling in many non-Anglophone European countries In music * Catch (music), a form of round * Catch (band), an English band * C. C. Catch (born 1964), Dutch-born German pop singer Albums * ''Catch'', 1969 self titled album by Catch * ''Catch'' (Misako Odani album), 2006 * ''Catch!'' (Tsuji Shion album) * ''Catch'', a 2002 electronic album by Kosheen Songs * "Catch" (The Cure song), 1987 * "Catch" (Kosheen song), 2000 * "Catch" (Allie X song) * "Catch" (Brett Young song), 2019 Other uses * Catch or latch, a device to close a door or window * catch, a computer-language command in exception handling syntax * ''Catch'', an Indian web news magazine owned by Rajasthan Patrika * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston
A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder (engine), cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering Porting (engine)#Two-stroke porting, ports in the cylinder. __TOC__ Piston engines Internal combustion engines An internal combustion piston engine, internal combustion engine is acted upon by the pressure of the expanding combustion gases in the combustion chamber space at the top of the cylinder. This force then acts dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklyn
Brooklyn is a Boroughs of New York City, borough of New York City located at the westernmost end of Long Island in the New York (state), State of New York. Formerly an independent city, the borough is coextensive with Kings County, one of twelve original counties established under English rule in 1683 in what was then the Province of New York. As of the 2020 United States census, the population stood at 2,736,074, making it the most populous of the five boroughs of New York City, and the most populous Administrative divisions of New York (state)#County, county in the state.Table 2: Population, Land Area, and Population Density by County, New York State - 2020 New York State Department of Health. Accessed January 2, 2024. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1852 Births
Events January–March * January 14 – President Napoleon III, Louis-Napoléon Bonaparte proclaims a French Constitution of 1852, new constitution for the French Second Republic. * January 15 – Nine men representing various Jewish charitable organizations come together to form what will become Mount Sinai Hospital, New York, Mount Sinai Hospital in New York City. * January 17 – The United Kingdom recognizes the independence of the South African Republic, Transvaal. * February 3 – Battle of Caseros, Argentina: The Argentine provinces of Entre Ríos Province, Entre Rios and Corrientes, allied with Brazil and members of Colorado Party (Uruguay), Colorado Party of Uruguay, defeat Buenos Aires troops under Juan Manuel de Rosas. * February 11 – The first British public toilet for women opens in Bedford Street, London. * February 14 – The Great Ormond Street Hospital for Sick Children, London, admits its first patient. * February 15 – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1935 Deaths
Events January * January 7 – Italian premier Benito Mussolini and French Foreign Minister Pierre Laval conclude an agreement, in which each power agrees not to oppose the other's colonial claims. * January 12 – Amelia Earhart becomes the first person to successfully complete a solo flight from Hawaii to California, a distance of . * January 13 – A plebiscite in the Territory of the Saar Basin shows that 90.3% of those voting wish to join Germany. * January 24 – The first canned beer is sold in Richmond, Virginia, United States, by Gottfried Krueger Brewing Company. February * February 6 – Parker Brothers begins selling the board game Monopoly in the United States. * February 13 – Richard Hauptmann is convicted and sentenced to death for the kidnapping and murder of Charles Lindbergh Jr. in the United States. * February 15 – The discovery and clinical development of Prontosil, the first broadly effective antibiotic, is published in a series of artic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
