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Ligation (medicine)
In surgery or medical procedure, a ligature consists of a piece of thread ( suture) tied around an anatomical structure, usually a blood vessel, another hollow structure (e.g. urethra) or an accessory skin tag to shut it off. History The principle of ligation is attributed to Hippocrates and Galen. In ancient Rome, ligatures were used to treat hemorrhoids. Spanish Muslim doctor Al-Zahrawi described the procedure around the year 1000 in his book ''Kitab al-Tasrif''. The concept of a ligature was reintroduced some 500 years later by Ambroise Paré and first performed by him in the village of Damvillers. It finally found its modern use in 1870–1880, made popular by Jules-Émile Péan. Procedure With a blood vessel the surgeon will clamp the vessel perpendicular to the axis of the artery or vein with a hemostat, then secure it by ligating it; i.e. using a piece of suture around it before dividing the structure and releasing the hemostat. It is different from a tourniquet in that t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ligature
Ligature may refer to: Language * Ligature (writing), a combination of two or more letters into a single symbol (typography and calligraphy) * Ligature (grammar), a morpheme that links two words Medicine * Ligature (medicine), a piece of suture used to shut off a blood vessel or other anatomical structure ** Ligature (orthodontic), used in dentistry Music * Ligature (music), an element of musical notation used especially in the medieval and Renaissance periods * Ligature (instrument), a device used to attach a reed to the mouthpiece of a woodwind instrument See also * Ligature strangulation {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jos Massard
Jos is a city in the North-Central region of Nigeria. The city has a population of about 900,000 residents based on the 2006 census. Popularly called "J-Town", it is the administrative capital and largest city of Plateau State. The city is situated on the Jos plateau which lies within the Guinea Savannah of North-Central Nigeria. It connects most of the North-Eastern capitals to the Federal Capital Territory Abuja, by road. Driving in and out of Jos, traffic encounters very steep and windy bends and mountainous sceneries typical of the plateau, from which the state derives its name. During the period of British colonial rule, Jos became an important centre for tin mining after large deposits of cassiterite, the main ore for the metal, were discovered. It is also the trading hub of Plateau State as commercial activities are steadily increasing. History The earliest known settlers of the land that would come to be known as Nigeria were the Nok people ( BC), skilled artisans fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheesewiring
In medicine, the term cheesewiring or cheesewire effect (used interchangeably) describes any process in which cells or intercellular matrix are dissected or extruded either by the material being pressed through a taut element, or by the tension of a taut element pulling through tissue. The procedure is typically conducted in a surgical setting. Cheesewiring or the cheesewire effect can also describe the process of suture material cutting or tearing through viscera at the time of suture anastomosis and tension. As a complication Cheesewiring can be a complication or part of a negative outcome of a procedure. Examples include tumor growth penetrating the openings in a bowel stent that was placed to open an obstructed bowel, sutures used to hold a transplanted cornea in place, and treatment of tendon rupture, when sutures pull through the tendon. Evidence that the cheesewire effect has occurred is most clearly seen after surgery has been completed. Postoperatively as wound mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elastrator
Elastration (a portmanteau of "elastic" and "castration") is a bloodless method of male castration and docking commonly used for livestock. Elastration is simply banding the body part (scrotum or tail) until it drops off. This method is favored for its simplicity, low cost, and minimal training requirements. Castration Elastration is the most common method used to castrate sheep and goats, but is also common in cattle. Procedure Elastration involves restraining the animal, without the need for anesthesia or sedation (unlike most other castration methods), in a position that provides access to the genitals. Special ''elastrator pliers'' are then used to place a tight latex (rubber) ''elastrator ring'' gently around the base of the scrotum. This cuts the blood supply to the scrotum and testicles, which will totally decay and slough off within a few weeks. Care must be taken during the procedure to ensure that both testicles are fully descended and properly located inside the sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polydactyly
Polydactyly is a birth defect that results in extra fingers or toes. The hands are more commonly involved than the feet. Extra fingers may be painful, affect self-esteem, or result in clumsiness. It is associated with at least 39 genetic mutations. It may either present alone or with other defects. Cases may run in families. The underlying mechanism involves an error in limb bud formation during early development. Diagnosis may occur before birth via prenatal ultrasound as early as nine weeks. X-rays may be useful after a child is a year old. The opposite is oligodactyly (fewer fingers or toes). Treatment varies from removal by cautery to more involved surgery. While putting a tight band around the base has been carried out, this is not typically recommended. If surgery is required, this is often done around two years of age. Occasionally multiple surgeries are required. Polydactyly is present in about 4 to 12 per 10,000 newborns. It is the most common defect of the ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dental Floss
Dental floss is a cord of thin filaments, typically made of nylon or silk, used in interdental cleaning to remove food and dental plaque from between teeth or places a toothbrush has difficulty reaching or is unable to reach. Its regular use as part of oral cleaning is intended to maintain oral health. Use of floss is recommended to prevent gingivitis and the build-up of plaque. The American Dental Association claims that up to 80% of plaque can be removed by flossing, and it may confer a particular benefit in individuals with orthodontic devices. However, empirical scientific evidence demonstrating the clinical benefit of flossing as an adjunct to routine tooth brushing alone remains limited. History Levi Spear Parmly (1790-1859), a dentist from New Orleans, is credited with inventing the first form of dental floss. In 1819, he recommended running a waxen silk thread "through the interstices of the teeth, between their necks and the arches of the gum, to dislodge that ir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skin Tag
A skin tag, or acrochordon (: acrochorda), is a small benign tumor that forms primarily in areas where the Human skin, skin forms creases (or rubs together), such as the neck, armpit and groin. They may also occur on the face, usually on the eyelids. Though tags up to long have been seen, they are typically the size of a grain of rice. The surface of an acrochordon may be smooth or irregular in appearance and is often raised from the surface of the skin on a fleshy stalk called a peduncle (anatomy), peduncle. Microscopically, an acrochordon consists of a Circulatory system, fibrovascular core, sometimes also with fat cells, covered by an unremarkable Epidermis (skin), epidermis. However, tags may become irritated by shaving, clothing, jewelry or eczema. Etiology Skin tags are thought to occur from skin rubbing against skin, since they are often found in skin creases and folds. Studies have shown existence of low-risk Human papillomavirus infection, human papillomaviruses 6 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tourniquet
A tourniquet is a device that is used to apply pressure to a limb or extremity in order to create ischemia or stopping the flow of blood. It may be used in emergencies, in surgery, or in post-operative rehabilitation. A simple tourniquet can be made from a stick and a rope, but the use of makeshift tourniquets has been reduced over time due to their ineffectiveness compared to a commercial and professional tourniquet. This may stem the flow of blood, but side effects such as soft tissue damage and nerve damage may occur. History During Alexander the Great’s military campaigns in the fourth century BC, tourniquets were used to stanch the bleeding of wounded soldiers. Romans used them to control bleeding, especially during amputations. These tourniquets were narrow straps made of bronze, using only leather for comfort. In 1718, French surgeon Jean Louis Petit developed a screw device for occluding blood flow in surgical sites. Before this invention, the ''tourniquet' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemostat
A hemostat (also called a hemostatic clamp; arterial forceps; and pean, after Jules-Émile Péan) is a tool used to control bleeding during surgery. Similar in design to both pliers and scissors, it is used to clamp exposed blood vessels shut. Hemostats belong to a group of instruments that pivot (similar to scissors, and including needle holders, tissue holders, and some other clamps) where the structure of the tip determines the tool's function. A hemostat has handles that can be held in place by their locking mechanism, which usually is a series of interlocking teeth, a few on each handle, that allow the user to adjust the clamping force of the pliers. When the tips are locked together, the force between them is about 40 N (9 lbf). Often in the first phases of surgery, the incision is lined with hemostats on blood vessels that are awaiting ligation. History The earliest known drawing of a pivoting surgical instrument dates from 1500 B.C. and is on a tomb at Thebes, Eg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules-Émile Péan
Jules-Émile Péan (; 29 November 1830 – 20 January 1898) was one of the great French surgeons of the 19th century. Péan was born in 1830 in Marboué, french department of Eure-et-Loir. He studied at the college of Chartres and then studied medicine in Paris under Auguste Nélaton. He was appointed a doctor in 1861 and worked at St. Antoine and St. Louis up to 1893. He then created with its expenses the international hospital. He wrote two volumes of private clinics (1876 and 1890). He was elected to the French Académie Nationale de Médecine on November 22, 1887, and was awarded the rank of Commander of Legion of Honor in 1893. He died on January 20, 1898, in Paris. A street, Rue Péan, was named after him in Châteaudun, Cloyes-sur-le-Loir and Paris. Péan was very admired and a follower of hygiene, he disputed the discoveries of Louis Pasteur. He refused to dissect corpses and operated preferably in residence. Although a teacher, he was never named professor. He was t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damvillers
Damvillers () is a commune in the Meuse department in Grand Est in north-eastern France. History Damvillers was part of the Duchy of Luxembourg, which was part of the Spanish Netherlands . In 1552, France intervened in the princes' revolt and French troops laid siege to Damvillers. From 1559, Cristóbal de Mondragón was the governor of the fortress of Damvillers for more than a decade. The former relations with Luxembourg are reflected in the municipality's current coat of arms. In 1659, the city and the fortress were ceded to the Kingdom of France as a result of the Peace of the Pyrenees. When Damvillers was besieged in 1552, Ambroise Paré (1510–1590) became the first surgeon to repair an artery during an amputation through use of a Ligature. His new method would soon replace the previously used cauterization. Joseph Albert Massard. "Damvillers, Mansfeld and Son: Ambroise Paré, the Father of Surgery, and Luxembourg." Lëtzebuerger Journal, vol. 60, no. 74, 17 April ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surgical Suture
A surgical suture, also known as a stitch or stitches, is a medical device used to hold Tissue (biology), body tissues together and approximate wound edges after an injury or surgery. Application generally involves using a Sewing needle, needle with an attached length of thread (yarn), thread. There are numerous types of suture which differ by needle shape and size as well as thread material and characteristics. Selection of surgical suture should be determined by the characteristics and location of the wound or the specific body tissues being approximated. In selecting the needle, thread, and suturing technique to use for a specific patient, a medical care provider must consider the tensile strength of the specific suture thread needed to efficiently hold the tissues together depending on the mechanical and shear forces acting on the wound as well as the thickness of the tissue being approximated. One must also consider the elasticity of the thread and ability to adapt to differe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
