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| | The Whitaker Foundation: Supporting Research and Education in Biomedical Engineering |
 | | Before its introduction to medicine in the 1950s, heart surgery was unheard of; there was no way to keep a patient alive while working on the heart. | | | During an open-heart surgery, such as bypass surgery, the heart-lung machine takes over the functions of the heart and lungs and allows a surgeon to carefully stop the heart while the rest of the patient’s body continues to receive oxygen-rich blood. | | | Another approach is “beating heart” surgery, where the surgeons operate on the heart while it still beats and moves blood throughout the patient’s body. |
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http://www.whitaker.org/glance/heartlung.html
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| | Beating-Heart Surgery May Reduce Complications, Deaths |
| | Some patients are not good candidates for beating-heart surgery, he noted, in particular those with large hearts and very bad heart function and those with extraordinary pressure placed on the heart because of conditions such as a caved-in chest wall, a deformity of the breast bone that can be very severe in some individuals. | | | Just 1.6% of the beating-heart patients experienced strokes, compared to the 5.7% in the traditional-surgery group, and 92% of the beating-heart patients had no surgery complications at all compared to 80% of the other patients who were complication-free. | | | Data on the beating-heart approach had been limited to patients with low risk of death from coronary bypass surgery until the completion of the study, which was the first to focus on high-risk patients. |
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http://healthlink.mcw.edu/article/1031002354.html
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| | heart lung machine |
| | Open heart surgery is possible because medical research developed the heart lung machine to bypass the heart and lungs, taking over both the pumping of the blood and its oxygenation. | | | Subsequent experiments by Melrose6 and David Hearse7, using the isolated hearts of rabbits and rats, established optimum concentrations of potassium chloride to stop the heart, and ways of preserving the heart while starved of blood. | | | Under these conditions the heart can be operated on for many hours, and delicate procedures such as heart valve replacements can be performed. |
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http://www.rds-online.org.uk/pages/page.asp?i_ToolbarID=3&i_PageID=124
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| | The Great Web of Percy Harrison Fawcett |
| | The surgical techniques for ischemic heart diseases (e.g. | | | But thanks to the development of cardiac surgery, especially over the past ten years, such as the development and improvement of surgical equipment, improvement of heart-lung machines and artificial organs, and the development of the technique of myocardial protection, has resulted in the performance of exceedingly safe operations. | | | Thus, one of the reasons why we have been able to perform these operations in such a short time is due to an improvement in the technique of myocardial protection. |
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http://www.phfawcettsweb.org/akimitsu.htm
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| | Oberlin Alumni Magazine |
| | Machines like Cross and Kaye's invention allowed surgeons to probe a living heart for extended periods of time by transferring the jobs of respiration and circulation from the patient's lungs and heart to a machine. | | | At the time, in the mid-1950s, heart surgery was still at the forefront of medicine. | | | A device that looked like a two-pronged salad fork was passed through a smallincision between the ribs; a stabilizer that Cohn said rode with the heart muscle "like a cowboy on a bronco." Impressed, he started using the method, but found its technical demands unsatisfying. |
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http://www.oberlin.edu/alummag/oamcurrent/oam_winter99/hearts.html
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| | Pitt at work on 2 kinds of breathing machines |
| | The device, which is probably several years away from full development, would be surgically connected to the heart and worn outside the body in a cartridge the size of a CD player, allowing the patient to walk around. | | | Transplant surgeons are eager for a mechanical "bridge" that would keep patients alive until donor lungs become available, in much the same way that heart assist devices now sustain heart transplant candidates. | | | But Hattler's success inspired Griffith and others to try to develop a lung replacement -- what they call the chronic artificial lung -- that could handle all of the body's needs. |
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http://www.post-gazette.com/healthscience/20010426lung2.asp
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| | Saving the Heart Can Sometimes Mean Losing the Memory |
| | These patients are apart from the approximately 2 percent to 5 percent of patients who suffer strokes after bypass surgery, a procedure 600,000 Americans undergo each year. | | | Experts say there are probably several other contributing factors, including tiny blood clots or bubbles from the heart-lung machine, inadequate blood flow to the brain during surgery and brain inflammation. | | | Haneman is an extreme example, heart surgeons say he is not alone. |
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http://fig.cox.miami.edu/Faculty/Gaines/bil150/currentevent4.htm
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| | Heart-lung machine - Wikipedia, the free encyclopedia |
| | HLM are frequently used to assist in the induction of total body hypothermia, a state in which the body can be maintained for several hours without perfusion (blood flow). | | | Heart-lung machines are frequently used in heart surgery because it is difficult or even impossible to operate on the beating heart. | | | The pump is usually several motor-driven rollers that peristaltically "massage" a tube made of silicone rubber. |
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http://en.wikipedia.org/wiki/Heart-lung_machine
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| | Gold Volume |
| | He also offered his assessment of the current state of the art with artificial hearts and lungs as compared to other methods used when performing open-heart surgery in the 1950s. | | | He alluded to patients of his who did not survive open-heart surgery after the one successful case, and even suggested that a heart-lung machine might not be necessary for closure of a simple atrial septal defect. | | | Gibbon took the moderator’s prerogative to add some perspective to the proceedings by reviewing his considerable personal experience leading up to the first successful clinical use of a heart-lung machine for closure of an atrial septal defect. |
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http://echo.gmu.edu/bionics/Toppapers2.htm
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| | Micro-pumps to replace heart-lung machines (print version) |
| | Oldenburg's Heart Center is one of the few clinics in Germany where this new "intra-cardial pump system" is being tested as part of an international study. | | | A quick glance at the monitor shows that the patient's condition is stable. | | | The idea is to use an artificially constructed bypass to reestablish a sufficient blood supply to the under-supplied muscle tissue. |
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http://www.morgenwelt.de/futureframe/010806-heart-micropumps.htm
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| | Heart-lung machine 50th anniversary marked: 5/2 |
| | The health care professionals who operate heart-lung machines under the direction of a cardiac surgeon are known as perfusionists. | | | A discouraged Gibbon later abandoned open-heart surgery as a means of repairing human heart lesions after five subsequent surgical failures. | | | As a result, nearly 800,000 people around the world undergo heart surgery a year while supported by the modern version of the heart-lung machine. |
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http://www.musc.edu/catalyst/archive/2003/co5-2heart.htm
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| | 02/26/1998 - Pennsylvania Current: Penn and Russian doctors explore a cool surgical procedure |
| | By encasing the brain in an ice-filled helmet and covering the patient with ice prior to surgery, the Novosibirsk doctors lower body temperature from 98.6° to about 75°, and brain temperature to 60 to 65°. | | | Vladimir Lomivorotov, M.D., the institute's chief cardiothoracic anesthesiologist, explained through a translator, "The procedure is quite different from the conventional approach to providing cardiothoracic surgery" in the rest of the world. | | | "The temperature of the patient's brain is so low that it actually allows you to stop the heart for a sufficient time -- up to an hour and 30 minutes -- to restore the heart defect, restore the circulation afterwards, and restore the full functioning of the brain," Lomivorotov said. |
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http://www.upenn.edu/pennnews/current/1998/022698/Doctors.html
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| | Postpump Syndrome - Page 1 - HeartCenterOnline: |
| | The surgeon isolates the area of the heart to be worked on using stabilizers and positioners. | | | In this operation, the surgeon operates on the heart through two incisions made in the chest. | | | This type of surgery is most common with coronary artery bypass surgery. |
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http://heart.healthcentersonline.com/bypasssurgery/Postpump.cfm
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| | BBC NEWS Health Heart-lung machine safety boosted |
| | The machine is used during open-heart surgery to provide oxygen and circulate blood around the body while the heart is stopped. | | | Last year over 30,000 patients in the UK were placed on a heart-lung machine during surgery. | | | Belinda Linden, of the British Heart Foundation said: "The development of the heart-lung machine has allowed cardiac surgeons to successfully carry out more complicated heart surgery. |
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http://newsvote.bbc.co.uk/1/hi/health/4428320.stm
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| | Bypass surgery: New pathways for blocked arteries - MayoClinic.com |
| | You have debilitating angina, or chest pain, because several of the arteries that supply your heart muscle are narrowed, leaving the muscle short of blood. | | | Coronary bypass surgery is one of the most common and effective procedures to manage blockage of blood to the heart muscle. | | | Coronary bypass surgery is a way to treat blocked heart arteries by creating new passages for blood to flow to your heart muscle. |
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http://www.mayoclinic.com/health/coronary-bypass-surgery/HB00022
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| | Boston.com / News / Boston Globe / Health / Science / Heart patients? mental decline baffles doctors |
| | One study of 262 older patients who had knee-replacement surgery found that 5 percent had cognitive dysfunction six months after surgery. | | | But off-pump surgery, though it has been growing in recent years, is still only used in about 22 percent of bypass procedures, said Dr. John Puskas, an associate professor of surgery at Emory University in Atlanta. | | | But patients can at least take heart from the fact that many cardiologists, including Dr. Frank Sellke, chief of cardiothoracic surgery at Beth Israel Deaconess Medical Center, believe the operations are "fairly equivalent." |
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http://www.boston.com/news/globe/health_science/articles/2004/09/21/heart_patients_mental_decline_baffles_doctors?pg=2
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| | Minimally Invasive Heart Bypass Procedure Found Effective |
| | Often referred to as "keyhole" heart bypass surgery, the relatively new procedure holds the promise of lower hospital costs, less pain and a faster recovery, said Magovern who is also an associate professor of surgery at Allegheny University of the Health Sciences. | | | Conventional coronary artery bypass surgery requires that the sternum -- or breastbone -- be cracked and separated, the heart stopped and blood circulated through the body by a heart lung machine. | | | Title: Minimally Invasive Heart Bypass Procedure Found Effective |
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http://www.docguide.com/dg.nsf/PrintPrint/31F0E317C0FDCE39852563E00071FDE5
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| | Mechanical Engineering Design, February 2004 -- "Blood Ties," Feature Article |
| | During open-heart surgery, such as a bypass procedure, a machine takes over the function of both heart and lungs. | | | This heart-lung machine allows the surgeon to carefully stop the heart, while the vital organs continue to receive blood and oxygen. | | | Blood is drained by gravity from the patient, then pumped from the large reservoir through the heat exchanger, oxygenator, and filter, then back into the patient's body. |
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http://www.memagazine.org/medes04/bloodties/bloodties.html
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| | Texas Medical Center NEWS |
| | Most traditional bypass surgeries involve connecting a patient to a heart-lung machine which substitutes for the patient’s own heart and lungs and allows surgeons to stop the heart from beating while they perform delicate surgery on its blood vessels. | | | Suction cups attach to the heart muscle on either side of the artery on which the surgeons operate. | | | Doctors Say Stopping the Heart During Surgery Not Always Necessary |
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http://www.tmc.edu/tmcnews/02_01_02/page_12.html
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| | heart-lung machine on Encyclopedia.com |
| | The machine is used in open-heart surgery when it is necessary to effect a bypass of the circulatory system of the heart and lungs. | | | Different heart-lung machine concepts influence platelet and monocyte surface-marker expression during coronary artery surgery.(Cardiac Surgery: Interventions and Predictors: 12:30 PM-2:00 PM) | | | Let HighBeam Research help you refine your search |
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http://www.encyclopedia.com/html/h1/heartlun.asp
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| | The Mechanical Heart celebrates 50 lifesaving years |
| | Their efforts, funded in part by the American Heart Association, revolutionized cardiac surgery when doctors in 1952 used the Dodrill-GMR (General Motors Research) Heart Machine to perform the first “open heart” surgery to save a man’s life. | | | The American Heart Association is helping fund current research to support new techniques being developed in the area. | | | Other important medical advances and discoveries from American Heart Association-funded research include CPR, bypass surgery, pacemakers, artificial heart valves, microsurgery, life-extending drugs and new surgical techniques to repair heart defects. The organization has also funded the research of three Nobel Prize winners. |
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http://www.americanheart.org/presenter.jhtml?identifier=3005888
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| | ScienceDaily: New Heart Bypass Procedure Sidesteps Heart-Lung Machine, Reduces Related Complications |
| | Awake, Patient Undergoes Heart Bypass Surgery (July 5, 2000) -- A 51-year-old patient recently underwent coronary bypass surgery while awake. | | | In the first surgery of its kind at UC Davis Medical Center, Sellers' heart kept beating throughout the procedure, sparing him the ordeal of a heart-lung machine. | | | Although coronary bypass surgery is over 95 percent successful, there remain serious side effects and occasional deaths -- many resulting not from the surgery itself, but from the heart-lung machine. |
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http://www.sciencedaily.com/releases/2001/07/010727101114.htm
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| | Arabic information |
| | The full spectrum of cardiac surgery is offered such as coronary artery bypass surgery, valve surgery (including reconstructions and homograft implantations), surgery of the aorta, thoracic transplantations, implantation of artificial hearts, pacemaker and defibrillator implantations as well as every type of interventions for congenital heart diseases. | | | At the Department of Cardiac Surgery, University Hospital Munich- and the Cardiac Clinic Augustinum, specialists in cardiac surgery perform about 2000 open heart procedures (with the help of heart lung machines) per year. | | | With the help of high-tech equipment like endoscopic cameras and even robots, heart surgery can be performed an the beating heart using a Small incision only. |
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http://hch.klinikum.uni-muenchen.de/english/patinfo/overview.html
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| | Mass and thermal transfer means for use in heart lung machines dialyzers and other applications - Patent 5830370 |
| | For example, heart-lung machines, which utilize oxygenators, are employed during surgery in the USA approximately 300,000 times per year. | | | There has been a need to utilize principles of mass and heat transfer more effectively in, for example, oxygenators and dialyzers. | | | Venous blood comes from the patient 21 into a rigid open reservoir 23 in series with the circulating (dynamic) blood reservoir. |
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http://www.freepatentsonline.com/5830370.html
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| | Perfusionists |
| | Perfusionists run heart-lung machines used in open heart surgery and other medical procedures. | | | They monitor the circulatory and physiological processes during surgery and take action if problems arise. | | | Keeping the doctors informed of the patient's condition |
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http://www3.ccps.virginia.edu/careerprospects/briefs/P-S/Perfusionists.shtml
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| | Heart Info |
| | A critic, however, pointed out the doctors in the study lacked experience with the procedure. | | | Now, new research suggests patients do just as well -- and at a lower cost -- when cardiologists let the heart keep beating on its own during the procedure. | | | The American Heart Association (www.americanheart.org) and the National Library of Medicine (www.nlm.nih.gov) offer more information on bypass operations. |
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http://www.heartinfo.org/ms/news/518481/main.html
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| | Read about Cardiac pump at WorldVillage Encyclopedia. Research Cardiac pump and learn about Cardiac pump here! |
| | Cardiac pumps are most often used in heart surgery, so that a patient's heart can be disconnected from the body for longer than the twenty minutes or so it takes a prepared patient to die. | | | In France, emergency medical teams (SAMU) use a different kind of portable cardiac pump which stimulates blood circulation by suction. | | | Although unprepared patients get brain damage in three to four minutes, a patient can be prepared by cooling and drugs so that no damage will occur for twenty minutes or more. |
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http://encyclopedia.worldvillage.com/s/b/Heart-lung_machines
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| | SNIA S.p.A. - Analysis of Proposed Consent Order |
| | A heart-lung machine is the equipment portion of an extracorporeal bypass system, which replaces the function of the heart and lungs during surgery by circulating and providing oxygen to the patient's blood throughout the procedure. | | | Heart-lung machines are life-sustaining medical devices that are essential for any surgery that requires the heart to be stopped, such as surgeries to implant coronary artery bypass grafts, repair or replace heart valves, repair cerebral aneurysms, or transplant livers and hearts. | | | The acquisition would result in a Herfindahl-Hirschman Index ("HHI") of 4,638 points, which is an increase of 1,554 points over the preacquisition level. |
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http://www.ftc.gov/os/1999/05/sniaanal.htm
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| | The Christ Hospital School of Perfusion Science in the Health Alliance of Greater Cincinnati |
| | A Perfusionist is a medical professional trained in the operation of heart-lung machines to assist open-heart surgical teams divert blood away from the core circulatory organs during the procedure, to be artificially cleansed and oxigenated. | | | The perfusionist must constantly monitor both the heart-lung machine and the patient, and must be competently trained to communicate with the surgeon and anesthesiologist to effectively coordinate the operation. | | | Many hospitals also require the student of perfusion science to support other medical technical specialists in pre-op and post-op procedures dealing with circulation and the blood. |
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http://www.health-alliance.com/perfusion
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| | Medtronic Cardiovascular Surgery - Arrested Heart - Recent News |
| | The Heart Lung Machine is the pumping hardware commonly associated with heart bypass surgery and is used in conjunction with sophisticated oxygenation disposables of which Medtronic is a market leader. | | | Physician Information > Cardiovascular Surgery > Arrested Heart Surgery | | | Medtronic Cardiovascular Surgery - Arrested Heart - Recent News |
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http://www.medtronic.com/cardsurgery/arrested_heart/jostra_news.html
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| | The Cleveland Clinic Press Room |
| | Jose Navia, M.D., a staff member in the Clinic’s Department of Thoracic and Cardiovascular Surgery, performed the first patient procedure utilizing the new technology. | | | “This new machine offers some big benefits for patients, including faster recovery time,” says Dr. Navia, who performed the procedure Wednesday. | | | Cleveland Clinic doctors are the first in the nation to use a new heart-lung machine designed to cause less trauma to patients undergoing heart surgery. |
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http://www.clevelandclinic.org/media/release.asp?Press_Releases_No=312
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| | Heart Tumors and Cancers seen in Dogs |
| | machines to perform heart surgery (Dr. Lynn Boggs in Texas does this in private | | | Enough that it is probably not untrue to say that dogs | | | It seems that heart tumors are not operable in dogs, malignant or benign. |
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http://www.vetinfo.com/dheartcancer.html
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| | CNN.com - Hospital: Double transplant teen has no brain activity - Feb. 22, 2003 |
| | EST revealed she has experienced "significant swelling and bleeding in her brain, which is life-threatening." Doctors inserted a tube in an attempt to relieve the swelling. | | | Santillan's parents have been keeping vigil by their child's bedside. | | | Doctors believe the brain injury was caused by time she spent on heart-lung machines, Mahoney said. |
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http://www.cnn.com/2003/HEALTH/02/21/transplant.error/index.html
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| | Heart-Lung Machine |
| | Apparatus that provides mechanical circulatory support during open-heart surgery, by passing the heart to facilitate surgery on the organ. | | | The basic function of the machine is to oxygenate the body's venous supply of blood and then pump it back into the arterial system. | | | Some of the more important components of these machines include pumps, oxygenators, temperature regulators, and filters. |
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http://medical.webends.com/kw/Heart-Lung+Machine
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| | Chillin' |
| | Surprisingly, due to a little-understood phenomenon called the "mammalian diving reflex," they do not die, even though their hearts have stopped beating. | | | The heart is padded with fat -- showing on its surface what is likely harming it from the inside. | | | The heart-lung machine also has a cooling system -- more ice -- to cool the entire body a few degrees, also to prevent injury. |
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http://whyfiles.org/028heart/heart6.html
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| | Medical device - definition of Medical device in Encyclopedia |
| | Medical monitors allow medical staff to measure a patient's medical state. | | | Therapeutic equipment include infusion pumps (by far the most common), medical lasers and LASIK surgical machines. | | | These include medical ventilators, heart-lung machines, ECMO, and dialysis machines. |
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http://encyclopedia.laborlawtalk.com/Medical_device
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| | New and Used Heart and Lung Equipment |
| | We now are able to meet the needs of our clients and others who wanted a one stop source to purchase new, refurbished and used biomedical equipment and find their service and parts needs met as well. | | | We also offer factory quality service that is world class, personal and tailored to your needs. | | | If you are looking for a specialized biomedical or medical piece of equipment and can't seem to find it — contact us. |
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http://www.salyerbiomedical.com
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| | Stöckert Instrumente GmbH, Innovations, Research, Science |
| | The core business of Stöckert Instrumente GmbH consists of heart-lung machines and accessories on the one hand, and disposable surgical articles on the other hand. | | | Until the early 1970s the company’s activities concerned the repair and the manufacture of surgical instruments. | | | Release of the CAPS Monitoring Software, a centralized data management system capable of integrating all HLM data as well as information from other devices such as patient monitors, blood gas analyzers etc. |
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http://www.innovations-report.com/html/profiles/profile-871.html
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| | Sarns Machines |
| | As the medical school began it's first experiments with open heart surgery, Dick worked with them to create the new technology needed to keep a patient alive during this process. | | | His company designed and built the heart-lung machines that made it possible to carry out these procedures, which are now commonplace. | | | In the 1960s, he helped to develop the filtering machines for kidney dialysis. |
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http://www.afn.org/~afn29467/othermach.html
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| | COBE Cardiovascular, Inc/Sorin Biomedica S.p.A. |
| | The proposed settlement would preserve competition in the U.S. market for heart-lung machines -- the durable equipment portion of an extracorporeal bypass system that replaces the function of the heart and lungs by circulating and supplying oxygen to a patient's blood during open heart surgery. | | | Moreover, because of the time required to design and develop a new machine, gain customer acceptance, obtain U.S. Food and Drug Administration approval, and develop a nationwide sales and service network, no new entry into the market is likely in the foreseeable future. | | | Although Baxter does not currently manufacture or sell heart-lung machines, it is one of the world's leading healthcare businesses, and it manufactures and sells a wide array of complementary products including single-use, disposable products that along with a heart-lung machine comprise a complete extracorporeal bypass system. |
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http://www.ftc.gov/opa/1999/05/cobe-sorin.htm
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| | Article #1647, New Heart-Lung Bypass System Avoids Harmful Effects of Conventional Machines For Coronary Bypass |
| | "Given the CORx System's much smaller blood-flow circuitry compared to conventional heart-lung machines, we can expect major benefits to the patient and the surgeon over a wide-range of cardiac procedures." | | | Although CPB has enabled the widespread adoption of such surgical procedures as coronary artery bypass grafting and heart valve replacement and repair, studies have shown CPB can have harmful short- and long-term effects on the patient. | | | Heart-lung machines, also known as cardiopulmonary bypass (CPB) systems, allow surgeons to perform surgical procedures that require the heart and lungs to be completely shut down. |
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http://www.perfusion.com/cgi-bin/absolutenm/anmviewer.asp?a=1647&print=yes
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| | AmSECT, 43rd International Conference of the American Society for Extra-Corporeal Technology |
| | cardiology, surgery, open heart surgery, cardiotomy, extracorporeal circulation, perfusion, open-heart surgery, heart-lung machines, IABP pumps, anesthesiology, surgical instruments, perfusion equipment, oxygenators, tubing, autotransfusion | | | For details on this meeting and more meetings in the same field visit our |
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http://mediconf.de/recstitl/21918003.HTM
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| | Medical Devices Profile, Soma Technology Inc |
| | medical equipment, refurbished medical equipment, defibrillators, anesthesia machines, heart-lung machines, patient monitors | | | The following data can be used in various combinations to determine whether inconsistencies exist between what you see on this page and what you can observe from other systems on your computer. | | | We offer healthcare facilities high quality medical equipment at very affordable prices. |
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http://www.ispex.ca/companies/medDevices/SomaTech.html
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| | Terumo Cardiovascular Systems introduces heart-lung machine to optimize cardiopulmonary bypass |
| | Incorporating a variety of technologies, including some developed by the high-end automotive industry, the system allows heart teams to adopt current trends that positively affect patient outcomes. | | | Terumo System 1's design allows the extracorporeal blood circuit to be positioned closer to the patient. | | | The central control monitor not only displays information but also serves as a controller allowing the perfusionist to operate the system from a location further away. |
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http://www.terumo-us.com/news_and_events/render_news.asp?newsId=4
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| | [No title] |
| | A final caution: these machines are ancient, but they work and have worked very reliably for us. | | | Certainly the heads and motors are in good condition. | | | On the other hand, I have two Sarns 5000s, two AO machines, and a Sarns modular 4 -head console: all in good condition, not to mention a Biomedicus centrifugal system. |
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http://keithlynch.net/cryonet/46/24.html
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| | Untitled Page |
| | This heart-lung machine was never used in an operation on human beings. | | | Jongbloed was convinced that in the foreseeable future people with a heart problem could be helped by implanting an artificial heart. | | | However, he never got any further than this table-sized model. |
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http://www.museumboerhaave.nl/collectie/e_voorwerpen/hartlongmachine.html
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