News tagged with incision
Research reveals first evidence of hunting by prehistoric Ohioans
Cut marks found on Ice Age bones indicate that humans in Ohio hunted or scavenged animal meat earlier than previously known. Dr. Brian Redmond, curator of archaeology at The Cleveland Museum of Natural History, was lead author ...
Other Sciences / Archaeology & Fossils
Mar 01, 2012 |
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Appendicitis may be related to viral infections
Can you catch appendicitis? And if you do, is it necessarily an emergency that demands immediate surgery?
Medicine & Health / Medical research
Jan 18, 2010 |
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Tailoring surgical glues for specific applications
(PhysOrg.com) -- Surgical adhesives, which can be used to seal tissues after an operation or to repair wounds, are becoming increasingly important parts of a doctor's toolkit. However, their one-size-fits-all ...
Jul 10, 2009 |
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Microlenses for 3-D endoscopes
Modern endoscopic techniques enable doctors to perform surgery without major incisions. Certain interventions require instruments with special 3-D optics. Researchers have developed an image sensor that transmits ...
Oct 05, 2011 |
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'Revolution is at hand' for breakthroughs in medicine
Someday soon, thanks to advances in medicine, a surgeon will operate on a patient who is not in the same room, but thousands of miles away.
Medicine & Health / Medical research
May 27, 2011 |
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Invention helps students learn surgical techniques before operating on patients
In the last 50 years, modern medicine has made astounding advances in surgery, yet many of today's veterinary and human medicine students still hone basic surgical and suturing skills on carpet pads and pig's feet before ...
Nov 19, 2010 |
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Most hysterectomies should be performed vaginally or laparoscopically
Approximately 600,000 hysterectomies are performed in the United States annually to treat benign disorders of the pelvis. More than two-thirds are performed through an abdominal incision. In an evidence-based position statement ...
Nov 07, 2010 |
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Oh, my aching back: Give me a shot of ozone
A minimally invasive interventional radiology treatment—that safely and effectively uses oxygen/ozone to relieve the pain of herniated disks—will become standard in the United States in the next few years, predict researchers ...
Medicine & Health / Diseases, Conditions, Syndromes
Mar 09, 2009 |
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For common toy breed dog windpipe issue, veterinarians use technology and precision
Jack, a 12-year-old Yorkshire terrier, was lethargic and gasping for air when he arrived at the University of Missouri Veterinary Hospital. His tongue and gums were a bluish-purple. But, just one day following ...
Oct 04, 2011 |
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Using lasers to vaporize tissue at multiple points simultaneously
Researchers at Vanderbilt University have developed a new technique that uses a single UV laser pulse to zap away biological tissue at multiple points simultaneously, a method that could help scientists study ...
Sep 13, 2011 |
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Pacemaker in stomach helps against vomiting
People with severe stomach disorders can sometimes suffer from chronic vomiting. This symptom can be treated with electrical impulses from a pacemaker in the stomach. A new method enables patients who could benefit from this ...
Mar 29, 2010 |
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On the cutting edge: Zigzag incision technique improves outcome of laser-assisted corneal transplantation
(PhysOrg.com) -- For most of the 40,000 Americans who undergo corneal transplants each year, recovery is uncomfortable and slow, sometimes taking as long as six months. Even then, clear vision may not be fully ...
Medicine & Health / Medical research
Nov 10, 2009 |
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Mayo Clinic tests non-incision, endoscopic ulcer repair
Mayo Clinic surgical researchers are reporting a 93 percent success rate in recent animal tests of endoscopic repair of perforated ulcers. The goal is to advance the use of an endoscope -- which allows access to organs through ...
Oct 14, 2009 |
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Less invasive procedure for repair of abdominal aortic aneurysm may reduce short-term risk of death
Patients who received the less-invasive endovascular repair of an abdominal aortic aneurysm had a lower risk of death in the first 30 days after the procedure compared to patients who an open repair, but both procedures had ...
Oct 13, 2009 |
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Surgeons remove gall bladder through belly button to prevent scars
(PhysOrg.com) -- Surgeons at The Methodist Hospital in Houston are removing gall bladders through a single incision in the belly button to prevent scarring for patients with gall stones. The procedure also has the potential ...
Sep 15, 2009 |
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Cutting
Cutting is the separation of a physical object, or a portion of a physical object, into two portions, through the application of an acutely directed force. An implement commonly used for cutting is the knife or in medical cases the scalpel. However, any sufficiently sharp object is capable of cutting if it has a hardness sufficiently larger than the object being cut, and if it is applied with sufficient force. Cutting also describes the action of a saw which removes material in the process of cutting.
Cutting is a compressive and shearing phenomenon, and occurs only when the total stress generated by the cutting implement exceeds the ultimate strength of the material of the object being cut. The simplest applicable equation is stress = force/area: The stress generated by a cutting implement is directly proportional to the force with which it is applied, and inversely proportional to the area of contact. Hence, the smaller the area (i.e., the sharper the cutting implement), the less force is needed to cut something.
For more information about Cutting, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
