Catheter
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In medicine, a catheter (/ˈkæθətər/)[1] is a thin tube made from medical grade materials serving a broad range of functions. Catheters are medical devices that can be inserted in the body to treat diseases or perform a surgical procedure. By modifying the material or adjusting the way catheters are manufactured, it is possible to tailor catheters for cardiovascular, urological, gastrointestinal, neurovascular, and ophthalmic applications. The process of inserting a catheter is "catheterization".
In most uses, a catheter is a thin, flexible tube ("soft" catheter) though catheters are available in varying levels of stiffness depending on the application. A catheter left inside the body, either temporarily or permanently, may be referred to as an "indwelling catheter" (for example, a peripherally inserted central catheter). A permanently inserted catheter may be referred to as a "permcath" (originally a trademark).
Catheters can be inserted into a body cavity, duct, or vessel, brain, skin or adipose tissue. Functionally, they allow drainage, administration of fluids or gases, access by surgical instruments, and also perform a wide variety of other tasks depending on the type of catheter.[2] Special types of catheters, also called probes, are used in preclinical or clinical research for sampling of lipophilic and hydrophilic compounds,[3] protein-bound and unbound drugs,[4][5] neurotransmitters, peptides and proteins, antibodies,[6][7][8] nanoparticles and nanocarriers, enzymes and vesicles.
Etymology[edit]
"Catheter" (from Greek καθετήρ kathetḗr) comes from the Greek verb καθίεμαι kathíemai, meaning "to thrust into" or "to send down" because the catheter allowed fluid to be "sent down" from the body.[9]
Uses[edit]
Placement of a catheter into a particular part of the body may allow:
- Draining urine from the urinary bladder as in urinary catheterization, using intermittent catheters or Foley catheter inserted through urethra. When the urethra is damaged, suprapubic catheterisation is used instead. The suprapubic catheter is inserted through the lower part of the abdomen directly into the urinary bladder.[10]
- drainage of urine from the kidney by percutaneous (through the skin) nephrostomy
- drainage of fluid collections, e.g. an abdominal abscess
- pigtail catheter: used to drain air from around the lung (pneumothorax)
- administration of intravenous fluids, medication or parenteral nutrition with a peripheral venous catheter or central venous catheter
- angioplasty, angiography, balloon septostomy, balloon sinuplasty, cardiac electrophysiology testing, catheter ablation. Often the Seldinger technique is used.
- direct measurement of blood pressure in an artery or vein
- direct measurement of intracranial pressure
- administration of anaesthetic medication into the epidural space, the subarachnoid space, or around a major nerve bundle such as the brachial plexus
- transfer of fertilized embryos, from in vitro fertilization, or sperm, during artificial insemination, into the uterus
- administration of oxygen, volatile anesthetic agents, and other breathing gases into the lungs using a tracheal tube
- subcutaneous administration of insulin or other medications, with the use of an infusion set and insulin pump
History[edit]
Ancient inventors[edit]
![](http://webcf.waybackmachine.org/web/20220427192424im_/https://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Roman_catheters.jpg/220px-Roman_catheters.jpg)
Ancient Chinese used onion stalks, the Romans, Hindus, and Greeks used tubes of wood or precious metals.[11]
The ancient Syrians created catheters from reeds.
Modern[edit]
The earliest invention of the flexible catheter was during the 18th century.[12] Extending his inventiveness to his family's medical problems, Benjamin Franklin invented the flexible catheter in 1752 when his brother John suffered from bladder stones. Franklin's catheter was made of metal with segments hinged together with a wire enclosed to provide rigidity during insertion.[13][14]
According to a footnote in his letter in Volume 4 of the Papers of Benjamin Franklin (1959), Franklin credits Francesco Roncelli-Pardino from 1720 as the inventor of a flexible catheter. In fact, Franklin claims the flexible catheter may have been designed even earlier.[15]
An early modern application of the catheter was employed by Claude Bernard for the purpose of cardiac catheterization in 1844. The procedure involved entering a horse's ventricles via the jugular vein and carotid artery. This appears to be an earlier and modern application of the catheter because this catheter approach technique is still performed by neurosurgeons, cardiologists, and cardiothoracic surgeons.[16]
David S. Sheridan invented the modern disposable catheter in the 1940s.[17] Prior to this, some reusable catheters consisted of braided cotton tubes, which were varnished, heat-treated and polished. As these were primarily produced in France, the advent of World War II threatened the supply chain.[18]
In 1959, Teschan first described central venous catheter as means of blood vessel access for haemodialysis.[19]
Other reusable catheters consisted of red rubber tubes. Although sterilized prior to reuse, they still posed a high risk of infection and often led to the spread of disease.[20]: 142
In 1982, Quinton together with Dr Sakharam Mahurkar, a nephrologist at County Cook Hospital in Chicago, developed dual-lumen catheter which became the standard for haemodialysis and apheresis.[19]
Sheridan was dubbed the "Catheter King" by Forbes magazine in 1988. He also invented the modern "disposable" plastic endotracheal tube now used routinely in surgery.[17]
Materials[edit]
Urinary catheters[edit]
A range of polymers are used for the construction of catheters, including silicone rubber, nylon, polyurethane, polyethylene terephthalate (PET), latex, and thermoplastic elastomers. Silicone is one of the most common implantable choice because it is inert and unreactive to body fluids and a range of medical fluids with which it might come into contact. On the other hand, the polymer is weak mechanically, and a number of serious fractures have occurred in catheters.[21][22][23] For example, silicone is used in Foley catheters where fractures have been reported, often requiring surgery to remove the tip left in the bladder.
There are many different types of catheters for bladder problems. A typical modern intermittent catheter is made from polyurethane and comes in different lengths and sizes for men, women and children.[citation needed]
Some catheters are packed in a sterile saline solution.[citation needed]
Catheters used in interventional procedures[edit]
Polyimides are used to manufacture vascular catheters for insertion into small vessels in the neck, head and brain.[citation needed]
Guiding catheters (catheters that guides angioplasty balloons and stents) is made up of polytetrafluoroethylene (PTFE) innermost layer which is lubricant, followed by stainless steel braid wire outer layer which helps to provide support for the catheter and prevent kinking while travelling through blood vessels, and Nylon elastomer outermost layer which provides extra support for the catheter and preserve the curvature of the catheter while passing through tortuous vessels.[24]
Some catheters have a thin hydrophilic surface coating. When immersed in water this coating swells to a smooth, slippery film making the catheter safer and more comfortable to insert. Since this wire is too slippery to handle, torque devices are used to control the direction and spin the wire. It is useful in subintimal angioplasty. However, care should be taken as it can easily cause dissection of vascular wall.[25][26]
Interventional procedures[edit]
![](http://webcf.waybackmachine.org/web/20220427192424im_/https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Pigtail_catheter_settings.jpg/300px-Pigtail_catheter_settings.jpg)
A. Overview
B. Both puncture needle and obturator engaged, allowing for direct insertion.
C. Puncture needle retracted. Obturator engaged. Used for example in steady advancement of the catheter on a guidewire.
D. Both obturator and puncture needle retracted, when the catheter is in place.
E. Locking string is pulled (bottom center) and then wrapped and attached to the superficial end of the catheter.
Diagnostic catheters[edit]
There are various catheters used in angiography procedures. Diagnostic catheters[24][25] direct wires through blood vessels. Radiocontrast agent is then injected through the catheter to visualise the vessels via various imaging methods such as computed tomography (CT), projectional radiography, and fluoroscopy.[25] Pigtail catheter is a non-selective catheter that has multiple side holes which can deliver large volumes of contrast into a blood vessel for imaging purposes.[27] Cobra catheter is a selective catheter that is used to catheterise downgoing vessels in the abdomen. Cobra catheter move forwards by pushing and is removed by pulling.[28] Sidewinder catheter is a selective catheter is used to navigate the aorta.[27] Headhunter, Newton, Simmons, Bentson, and Berenstein catheters are used to navigate the into one of the three branches of the arch of aorta.[29] Yashiro Catheter is a selective, hydrophilic catheter that is designed for optimal entry into celiac trunk.[30]
Balloon catheters[edit]
There are also balloon catheters used in angioplasty procedures such as plain balloon catheters that is useful in passing tight vessel stenosis, drug coated balloons that contains paclitaxel on the surface to prevent smooth muscle cells proliferation of the vessel walls, thus reducing the likehood of vessel blockage in the future, high pressure balloons that can open stubborn vessel stenoses in veins and arteriovenous fistula, and cutting balloon angioplasty that contains 3 to 4 small blades on its surface (endotomes) that helps to control the distribution of balloon dilatation more uniformly and cut through resistant stenosis due to fibrous scar tissue.[31]
Dialysis catheters[edit]
There is no difference in achieving adequacy of blood flow, period of catheter usage, infection, and thromboembolism risk whether the dialysis catheter has step-tip, split-tip, or symmetrical tip.[32] Palidrome catheter is superior to Permcath catheter in terms of maximum blood flow, dialysis adequecy, and annual patency rate. Similar to Permcath, Palidrome catheter has high infection and thromboembolism rate.[33]
Adverse effects[edit]
"Any foreign object in the body carries an infection risk, and a catheter can serve as a superhighway for bacteria to enter the bloodstream or body", according to Milisa Manojlovich, a professor at the University of Michigan School of Nursing.[34]
Catheters can be difficult to clean, and therefore harbor antibiotic resistant[35] or otherwise pathogenic bacteria.
See also[edit]
References[edit]
- ^ https://www.oxfordlearnersdictionaries.com/definition/english/catheter
- ^ Diggery, Robert (2012). Catheters: Types, applications and potential complications (medical devices and equipment. Nova Science. ISBN 978-1621006305.
- ^ Altendorfer-Kroath, Thomas; Schimek, Denise; Eberl, Anita; Rauter, Günther; Ratzer, Maria; Raml, Reingard; Sinner, Frank; Birngruber, Thomas (January 2019). "Comparison of cerebral Open Flow Microperfusion and Microdialysis when sampling small lipophilic and small hydrophilic substances". Journal of Neuroscience Methods. 311: 394–401. doi:10.1016/j.jneumeth.2018.09.024. ISSN 0165-0270. PMID 30266621. S2CID 52883354.
- ^ Schaupp, L.; Ellmerer, M.; Brunner, G. A.; Wutte, A.; Sendlhofer, G.; Trajanoski, Z.; Skrabal, F.; Pieber, T. R.; Wach, P. (February 1, 1999). "Direct access to interstitial fluid in adipose tissue in humans by use of open-flow microperfusion". American Journal of Physiology. Endocrinology and Metabolism. 276 (2): E401–E408. doi:10.1152/ajpendo.1999.276.2.e401. ISSN 0193-1849. PMID 9950802.
- ^ Ellmerer, Martin; Schaupp, Lukas; Brunner, Gernot A.; Sendlhofer, Gerald; Wutte, Andrea; Wach, Paul; Pieber, Thomas R. (February 1, 2000). "Measurement of interstitial albumin in human skeletal muscle and adipose tissue by open-flow microperfusion". American Journal of Physiology. Endocrinology and Metabolism. 278 (2): E352–E356. doi:10.1152/ajpendo.2000.278.2.e352. ISSN 0193-1849. PMID 10662720.
- ^ Dragatin, Christian; Polus, Florine; Bodenlenz, Manfred; Calonder, Claudio; Aigner, Birgit; Tiffner, Katrin Irene; Mader, Julia Katharina; Ratzer, Maria; Woessner, Ralph; Pieber, Thomas Rudolf; Cheng, Yi (November 23, 2015). "Secukinumab distributes into dermal interstitial fluid of psoriasis patients as demonstrated by open flow microperfusion". Experimental Dermatology. 25 (2): 157–159. doi:10.1111/exd.12863. ISSN 0906-6705. PMID 26439798. S2CID 34556907.
- ^ Kolbinger, Frank; Loesche, Christian; Valentin, Marie-Anne; Jiang, Xiaoyu; Cheng, Yi; Jarvis, Philip; Peters, Thomas; Calonder, Claudio; Bruin, Gerard; Polus, Florine; Aigner, Birgit (March 2017). "β-Defensin 2 is a responsive biomarker of IL-17A–driven skin pathology in patients with psoriasis". Journal of Allergy and Clinical Immunology. 139 (3): 923–932.e8. doi:10.1016/j.jaci.2016.06.038. ISSN 0091-6749. PMID 27502297. S2CID 30272491.
- ^ Kleinert, Maximilian; Kotzbeck, Petra; Altendorfer-Kroath, Thomas; Birngruber, Thomas; Tschöp, Matthias H.; Clemmensen, Christoffer (December 2019). "Corrigendum to "Time-resolved hypothalamic open flow micro-perfusion reveals normal leptin transport across the blood–brain barrier in leptin resistant mice" [Molecular Metabolism 13 (2018) 77–82]". Molecular Metabolism. 30: 265. doi:10.1016/j.molmet.2019.11.001. ISSN 2212-8778. PMC 6889745. PMID 31767178.
- ^ Feneley, Roger C. L.; Hopley, Ian B.; Wells, Peter N. T. (November 17, 2015). "Urinary catheters: history, current status, adverse events and research agenda". Journal of Medical Engineering & Technology. 39 (8): 459–470. doi:10.3109/03091902.2015.1085600. PMC 4673556. PMID 26383168.
- ^ "MedlinePlus: Urinary catheters". U.S. National Library of Medicine. November 6, 2019.
- ^ "MedTech Memoirs: Catheters". Advantage Business Media. June 16, 2015. Archived from the original on October 24, 2017.
- ^ "Didusch Site - Milestones - Relief in a Tube: Catheters Remain a Steadfast Treatment for Urinary Disorders". www.urologichistory.museum. Archived from the original on January 17, 2015.
- ^ "Benjamin Franklin: In Search of a Better World". Minnesota Historical Society. Archived from the original on August 12, 2011.
- ^ Hirschmann, J.V. (December 2005). "Benjamin Franklin and Medicine". Annals of Internal Medicine. 143 (11): 830–4. doi:10.7326/0003-4819-143-11-200512060-00012. PMID 16330795. S2CID 32882591. Archived from the original (PDF) on December 17, 2019. Retrieved January 2, 2013.
- ^ Huth, E.J. (2007). "Benjamin Franklin's place in the history of medicine" (PDF). Journal of the Royal College of Physicians of Edinburgh. 37 (4): 373–8. PMID 18447203.
- ^ Baim, Donald (2005). Grossman's Cardiac Catheterization, Angiography, and Intervention. Lippincott Williams & Wilkins. ISBN 978-0781755672.
- ^ a b "David S. Sheridan". Washington Post. May 7, 2004.
- ^ "David Sheridan, 95; Dropout Invented Key Medical Device". Los Angeles Times. May 4, 2004.
- ^ a b Mehta H (2015). "An insight into the sites of noncuffed hemodialysis catheters". Indian Journal of Nephrology. 25 (5): 261–2. doi:10.4103/0971-4065.152729. PMC 4588318. PMID 26628788.
- ^ Engineers, NPCS Board of Consultants & (January 1, 2014). Handbook on Medical and Surgical Disposable Products. Niir Project Consultancy Services. ISBN 9789381039281 – via Google Books.
- ^ McKenzie, J. M.; Flahiff, C. M.; Nelson, C. L. (October 1, 1993). "Retention and strength of silicone-rubber catheters. A report of five cases of retention and analysis of catheter strength". J Bone Joint Surg Am. 75 (10): 1505–1507. doi:10.2106/00004623-199310000-00011. ISSN 0021-9355. PMID 8408139. Archived from the original on September 23, 2016. Retrieved May 12, 2016.
- ^ Agarwal, Shaleen; Gandhi, Mamatha; Kashyap, Randeep; Liebman, Scott (March 1, 2011). "Spontaneous Rupture of a Silicone Peritoneal Dialysis Catheter Presenting Outflow Failure and Peritonitis". Peritoneal Dialysis International. 31 (2): 204–206. doi:10.3747/pdi.2010.00123 (inactive February 28, 2022). ISSN 0896-8608. PMID 21427251. Archived from the original on May 8, 2018.
{{cite journal}}
: CS1 maint: DOI inactive as of February 2022 (link) - ^ Mirza, Bilal; Saleem, Muhammad; Sheikh, Afzal (August 14, 2010). "Broken Piece of Silicone Suction Catheter in Upper Alimentary Tract of a Neonate". APSP Journal of Case Reports. 1 (1): 8. ISSN 2218-8185. PMC 3417984. PMID 22953251.
- ^ a b Ali, Ronan; Lecturer in Adult Internal Medicine, Faculty of Medical Sciences, University of the West Indies, St Augustine, Trinidad; Greenbaum, Adam B; Director, Cardiac Catheterization Laboratory, Henry Ford Hospital, Detroit, Michigan, US; Kugelmass, Aaron D; Chief of Cardiology and Medical Director, Heart and Vascular Program, Baystate Medical Center, 759 Chestnut Street, Springfield, Massachusetts, US. E: [email protected] (2012). "A Review of Available Angioplasty Guiding Catheters, Wires and Balloons – Making the Right Choice". Interventional Cardiology Review. 7 (2): 100. doi:10.15420/icr.2012.7.2.100. ISSN 1756-1477.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - ^ a b c Themes, U. F. O. (June 20, 2016). "Catheter-Based Technology and Devices". Thoracic Key. Retrieved August 15, 2021.
- ^ Fornell, Dave (October 12, 2016). "Understanding the Design and Function of Guidewire Technology". Diagnostic and Interventional Cardiology (DAIC). Archived from the original on October 13, 2016. Retrieved August 15, 2021.
- ^ a b Davies, AH; Brophy, CM (October 10, 2005). Vascular surgery. Springer Science & Business Media. p. 239. ISBN 9781852332884. Retrieved February 3, 2022.
- ^ Bakal, CW; Flacke, S (December 23, 2015). "Diagnostic Catheters and Guidewires". Radiology Key. Archived from the original on February 3, 2022. Retrieved February 3, 2022.
- ^ "Angiography peripheral intervention" (PDF). Merit Medical. p. 21. Archived from the original (PDF) on February 4, 2022. Retrieved February 4, 2022.
- ^ Golowa, Yosef S.; Kalva, Sanjeeva P.; D'Othee, Bertrand Janne (April 2009). "Use of a Yashiro Catheter to Facilitate Complex Visceral Catheterization". Journal of Vascular and Interventional Radiology. 20 (4): 557–559. doi:10.1016/j.jvir.2009.01.014. PMID 19243973.
- ^ Watson N, Jones H (2018). Chapman and Nakielny's Guide to Radiological Procedures. Elsevier. p. 231. ISBN 9780702071669.
- ^ Ling XC, Lu HP, Loh EW, Lin YK, Li YS, Lin CH, Ko YC, Wu MY, Lin YF, Tam KW (April 2019). "A systematic review and meta-analysis of the comparison of performance among step-tip, split-tip, and symmetrical-tip hemodialysis catheters". Journal of Vascular Surgery. 69 (4): 1282–1292. doi:10.1016/j.jvs.2018.09.029. PMID 30905366. S2CID 85497739.
- ^ Li M, Zhang Z, Yu Y, Chen H, Li X, Ma J, Dong Z (March 2014). "Clinical application of long-term Palindrome catheter in hemodialysis patients". Iranian Journal of Kidney Diseases. 8 (2): 123–9. PMID 24685735.
- ^ Laura Bailey (July 1, 2019). "Catheters: Big source of infection, but often overlooked". University of Michigan. Retrieved February 16, 2020.
- ^ "Nobody wants to talk about catheters. Our silence could prove fatal | Mosaic". Mosaicscience.com. November 7, 2018. Retrieved November 13, 2019.
- Millward, Steven F. (September 2000). "Percutaneous Nephrostomy: A Practical Approach". Journal of Vascular and Interventional Radiology. 11 (8): 955–964. doi:10.1016/S1051-0443(07)61322-0. PMID 10997456.
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