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Balloon Catheter
A balloon catheter is a type of "soft" catheter with an inflatable "balloon" at its tip which is used during a catheterization procedure to enlarge a narrow opening or passage within the body. The deflated balloon catheter is positioned, then inflated to perform the necessary procedure, and deflated again in order to be removed. Some common uses include: *angioplasty or balloon septostomy, via cardiac catheterization (heart cath) * tuboplasty via uterine catheterization * pyeloplasty using a detachable inflatable balloon stent positioned via a cystocopic transvesicular approach. Angioplasty balloon catheters Balloon catheters used in angioplasty are either of Over-the-Wire (OTW) or Rapid Exchange (Rx) design. Rx catheters nowadays are about 90% of the Coronary Intervention market. While OTW Catheters may still be useful in highly tortuous vascular pathways, they sacrifice deflation time and pushability. When a balloon catheter is used to compress plaque within a clogged cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cath Lab
A catheterization laboratory, commonly referred to as a cath lab, is an examination room in a hospital or clinic with diagnostic imaging equipment used to visualize the arteries of the heart and the chambers of the heart and treat any stenosis or abnormality found. Equipment Most catheterization laboratories are "single plane" facilities, those that have a single X-ray generator source and an X-ray image intensifier for fluoroscopic imaging. Older cath labs used cine film to record the information obtained, but since 2000, most new facilities are digital. The latest digital cath labs are biplane (have two X-ray sources) and use flat panel detectors. Staff Cardiac catheterization laboratories are usually staffed by a multidisciplinary team. This may include a medical practitioner (normally either a consultant cardiologist or radiologist), cardiac physiologist, radiographer and nurse. Medical practitioner (interventional cardiologist/electrophysiologist) The consultant cardio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Inventions ...
The following articles cover the timeline of United States inventions: * Timeline of United States inventions (before 1890), before the turn of the century * Timeline of United States inventions (1890–1945), before World War II * Timeline of United States inventions (1946–1991), for the post-war era * Timeline of United States inventions (after 1991), after the Fall of the Soviet Union {{DEFAULTSORT:Timeline of United States Inventions United States inventions United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urinary System
The urinary system, also known as the urinary tract or renal system, consists of the kidneys, ureters, bladder, and the urethra. The purpose of the urinary system is to eliminate waste from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH. The urinary tract is the body's drainage system for the eventual removal of urine. The kidneys have an extensive blood supply via the renal arteries which leave the kidneys via the renal vein. Each kidney consists of functional units called nephrons. Following filtration of blood and further processing, wastes (in the form of urine) exit the kidney via the ureters, tubes made of smooth muscle fibres that propel urine towards the urinary bladder, where it is stored and subsequently expelled from the body by urination ( voiding). The female and male urinary system are very similar, differing only in the length of the urethra. Urine is formed in the kidneys through a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foley Catheter
In urology, a Foley catheter (named for Frederic Foley, who produced the original design in 1929) is a flexible tube that a clinician passes through the urethra and into the bladder to drain urine. It is the most common type of indwelling urinary catheter. The tube has two separated channels, or ''lumens'', running down its length. One lumen, open at both ends, drains urine into a collection bag. The other has a valve on the outside end and connects to a balloon at the inside tip. The balloon is inflated with sterile water when it lies inside the bladder to stop it from slipping out. Manufacturers usually produce Foley catheters using silicone or coated natural latex. Coatings include polytetrafluoroethylene, hydrogel, or a silicon elastomer – the different properties of these surface coatings determine whether the catheter is suitable for 28-day or 3-month indwelling duration. Foley catheters should be used only when indicated, as use increases the risk of catheter-associa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obstructive Uropathy
Obstructive uropathy is a structural or functional hindrance of normal urine flow, sometimes leading to renal dysfunction (obstructive nephropathy). It is a very broad term, and does not imply a location or cause. Presentation Symptoms, less likely in chronic obstruction, are pain radiating to the T11 to T12 dermatomes, anuria, nocturia, or polyuria. Causes It can be caused by a lesion at any point in the urinary tract. Causes include urolithiasis, posterior urethral valves and ureteral herniation. Diagnosis Diagnosis is based on results of bladder catheterization, ultrasonography, CT scan, cystourethroscopy, or pyelography, depending on the level of obstruction. Treatment Treatment, depending on cause, may require prompt drainage of the bladder via catheterization, medical instrumentation, surgery (e.g., endoscopy, lithotripsy), hormonal therapy, or a combination of these modalities. Treatment of the obstruction at the level of the ureter: :* Open surgery. :* Less inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ileal Conduit
An ileal conduit urinary diversion is one of various surgical techniques for urinary diversion. It has sometimes been referred to as the Bricker ileal conduit after its inventor, Eugene M. Bricker. It is a form of incontinent urostomy, and was developed during the 1940s and is still one of the most used techniques for the diversion of urine after a patient has had their bladder removed, due to its low complication rate and high patient satisfaction level. It is usually used in conjunction with radical cystectomy in order to control invasive bladder cancer. To create an ileal conduit, the ureters are surgically resected from the bladder and a ureteroenteric anastomosis is made in order to drain the urine into a detached section of ileum at the distal small intestine, though the distal most 25 cm of terminal ileum are avoided as this is where bile salts are reabsorbed. The end of the ileum is then brought out through an opening (a stoma) in the abdominal wall. The residual small bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fibrosis
Fibrosis, also known as fibrotic scarring, is a pathological wound healing in which connective tissue replaces normal parenchymal tissue to the extent that it goes unchecked, leading to considerable tissue remodelling and the formation of permanent scar tissue. Repeated injuries, chronic inflammation and repair are susceptible to fibrosis where an accidental excessive accumulation of extracellular matrix components, such as the collagen is produced by fibroblasts, leading to the formation of a permanent fibrotic scar. In response to injury, this is called scarring, and if fibrosis arises from a single cell line, this is called a fibroma. Physiologically, fibrosis acts to deposit connective tissue, which can interfere with or totally inhibit the normal architecture and function of the underlying organ or tissue. Fibrosis can be used to describe the pathological state of excess deposition of fibrous tissue, as well as the process of connective tissue deposition in healing. Defin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ureteric Balloon Catheter
A ureteric balloon catheter is a balloon catheter intended for treating strictures of the ureter. In fact it is a double J stent on which a balloon is mounted. It is connected to a delivery device (pusher) to introduce it from the bladder into the ureter. The system comprises a non-return valve device, and a pusher with a stylet and two ports. The side port is for injecting contrast agent to inflate the balloon, while the straight port is for the guidewire. The catheter has a relatively large-diameter central lumen and a shaft of 2 mm (6 Fr.). The balloon is in two sections: a long narrow section or shaft and a larger cranial bulb. The larger cranial bulb prevents distal migration, while the longer narrow section maintains the increased diameter of a predilated stricture in the ureter section. Stent placement and removal A guide wire has to be placed in the ureter. After dilatation of the ureteric stricture with a high pressure dilatation balloon the guidewire remains in p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OTW Vs
OTW may refer to: * "OTW" (DJ Luke Nasty song), 2016 * "OTW" (Khalid, Ty Dolla Sign and 6lack song), 2018 * Ones to Watch Ones to Watch is an American music blog primarily aimed at showcasing new talent. The website was created independently by House of Blues Entertainment (a division of Live Nation Entertainment) in October 2013, before becoming a collaborative ..., an American music blog * Organization for Transformative Works, a non-profit fan activist organization * Ottawa language (ISO 639-3 language code) * Meyers OTW, an American training biplane built by the Meyers Aircraft Company from 1936 to 1944 * Opérateur de transport de Wallonie (Transport Operator of Wallonia), a transport operator in Wallonia, Belgium. See also * Off the Wall (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiologist
Cardiology () is a branch of medicine that deals with disorders of the heart and the cardiovascular system. The field includes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology. Physicians who specialize in this field of medicine are called cardiologists, a specialty of internal medicine. Pediatric cardiologists are pediatricians who specialize in cardiology. Physicians who specialize in cardiac surgery are called cardiothoracic surgeons or cardiac surgeons, a specialty of general surgery. Specializations All cardiologists study the disorders of the heart, but the study of adult and child heart disorders each require different training pathways. Therefore, an adult cardiologist (often simply called "cardiologist") is inadequately trained to take care of children, and pediatric cardiologists are not trained to treat adult heart disease. Surgical aspects are not included i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stents
In medicine, a stent is a metal or plastic tube inserted into the lumen of an anatomic vessel or duct to keep the passageway open, and stenting is the placement of a stent. A wide variety of stents are used for different purposes, from expandable coronary, vascular and biliary stents, to simple plastic stents that allow urine to flow between kidney and bladder. "Stent" is also used as a verb to describe the placement of such a device, particularly when a disease such as atherosclerosis has pathologically narrowed a structure such as an artery. A stent is different from a shunt. A shunt is a tube that connects two previously unconnected parts of the body to allow fluid to flow between them. Stents and shunts can be made of similar materials, but perform two different tasks. Stent types Etymology The current accepted origin of the word ''stent'' is that it derives from the name of an English dentist, Charles Thomas Stent (1807–1885), notable for his advances in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
