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Pulses in Medical News

Magnetic Pulses to Brain Improve Lazy Eye in Adults

Vision improved temporarily, Canadian researchers report FRIDAY, July 18 (HealthDay News) -- Correcting lazy eye in adults is supposed to be impossible, but researchers report they have been able to do that -- at least partially and temporarily -- by beaming magnetic pulses into the br...

Rhode Island Hospital first in US to treat kidney tumor with new device using electrical pulses

PROVIDENCE, RI On Thursday, January 8, Rhode Island Hospital treated an inoperable kidney tumor using a new technology known as NanoKnife. Damian Dupuy, MD, director of ablation services at Rhode Island Hospital and a national pioneer in ablation treatment, performed the procedure -- the first ti...

Amorous African Fish Exchange Electric Pulses While Mating

Some African fish signal their amorous intentions by exchanging bursts of electrical impulses, a new study has found . Scientists describe this behavior as being somewhat similar to the courtship duets of songbirds. According to the study, which has been reported by National Geogra...

Scientists Destroy Cancer Cells Using Electric Pulses

American scientists have developed a new minimally invasive method of treating cancer and they hope to begin clinical trials on individuals with prostate cancer soon . The development of the process called irreversible electroporation (IRE) is a result of the efforts of Virginia Techbiomedi...

Cold Laser Technology Made Even More Accessible with Powerful New Product Available from Laser-Therapy.US

...eatures an LCD screen and user-programmable timer from 15 to 180 seconds in addition to a user-adjustable light pulse rate from continuous to 150hz or pulses of light per second. Cold Lasers: For health care professionals, having a cold laser can make the difference between losing and gaining a valua...

St. Jude Scientists Discover a New Mechanism Controlling Neuronal Migration

...d fluorescent dyes to label Myosin II and actin proteins, as well as key cell structures. The scientists then illuminated the cultures with rapid-fire pulses of laser light measured in thousandths of a second, taking an image with each flash. The result was a series of micromovies that revealed how the Myos...
Pulses in Medical Technology

New AHRQ Study Finds Mixed Evidence on Use of Radiofrequency Catheter Ablation for Treating Atrial Fibrillation

...which a long, thin, flexible tube is put through a blood vessel into the heart - often is used when medications do not work. In this procedure, energy pulses are delivered through the catheter to the heart, destroying small areas of heart tissue where abnormal electrical signals may cause an arrhythmia to s...

PEAK Surgical Announces Completion of First PRECISE Clinical Study, Receipt of Medical Design Excellence Award for PEAK(R) Surgery System and Achievement of Over 1,000 Surgeries Using PEAK PlasmaBlade(TM)

...radiofrequency energy to the PlasmaBlade to incise tissue and control bleeding. Because the radiofrequency energy is provided through short on-and-off pulses via a highly insulated cutting electrode, the PlasmaBlade cuts at half the average temperature of a conventional electrosurgery device and can be as l...

VA-NIH Study Offers Hope for Parkinson's Patients

...Benefits WASHINGTON, Jan. 13 /PRNewswire-USNewswire/ -- Electrical stimulation of the brain -- a treatment in which a pacemaker-like device sends pulses to electrodes implanted in the brain -- is riskier than drug therapy but may hold significant benefits for those with Parkinson's disease who no longe...

PEAK Surgical Receives 510(k) Clearance to Market PEAK(R) Surgery System for Use in Expanded Indications

... supplies pulsed plasma-mediated electrical discharges through the PlasmaBlade. Because the radiofrequency energy is provided through short on-and-off pulses via a highly insulated cutting electrode, the PlasmaBlade cuts at an average temperature that is half that of a conventional electrosurgery device and...

Can Implantable Devices for Heart Failure Help Assess Risk of Future Adverse Events for Heart Failure Patients?

...iagnostic information obtained from an implantable cardiac defibrillator which measures changes in fluid levels in the thoracic cavity. Low electrical pulses travel across the thorax to measure the level of resistance, changes indicate increasing or decreasing fluid levels. Worsening heart failure is common...

PEAK Surgical Announces Positive Results From Preclinical Study of PEAK PlasmaBlade(TM) Needle

...AR Generator supplies pulsed plasma-mediated electrical discharges through the PlasmaBlade. Because the radiofrequency is provided in short on-and-off pulses and the blade contains a highly insulated cutting electrode, the PlasmaBlade cuts tissue at an average temperature that is half that of a conventional...
Pulses in Medical Products

Programmer System (Enterra™ Therapy)

Description:...lty maintaining their nutricial needs, and may require some form of tube feeding to ensure adequate nutrition. Enterra Therapy uses mild electrical pulses to stimulate the stomach. This electrical stimulation may reduce the symptoms associated with gastroparesis including nausea and vomiting....
Company:Medtronic Gastroenterology

Medtronic ITREL 3 Model 7425G Neurostimulator (Enterra™ Therapy)

Description:...lty maintaining their nutricial needs, and may require some form of tube feeding to ensure adequate nutrition. Enterra Therapy uses mild electrical pulses to stimulate the stomach. This electrical stimulation may reduce the symptoms associated with gastroparesis including nausea and vomiting....
Company:Medtronic Gastroenterology

Medtronic Model 4351 Lead (Enterra™ Therapy)

Description:...lty maintaining their nutricial needs, and may require some form of tube feeding to ensure adequate nutrition. Enterra Therapy uses mild electrical pulses to stimulate the stomach. This electrical stimulation may reduce the symptoms associated with gastroparesis including nausea and vomiting....
Company:Medtronic Gastroenterology

Shockwave Lithotripsy Laser U100Plus

Description:...ny details. The extraordinary high performance potential of the U100Plus and the possibility to set different energy levels as well as single and dual pulses with frequencies of up to 20 Hz, provides urologists with an extremely universal, highly efficient, and with that also very economically to operate li...
Company:W.O.M. WORLD OF MEDICINE USA, Inc.

Digistim 2 Plus Nerve Stimulator

Description:...t (4 pulses/2 s; repeats every 10 s) Output Current: Adjustable from 0-70 mA (HI range) 0-6.0 mA (LO range) Stimulus Pulse: Square Wave Monophasic pulses (200-us duration) Indicators: Digital LCD shows current delivered to the patient in mA. Battery LED (green) indicates that the unit is on; it flashe...
Company:CCR Medical

Digistim II Nerve Stimulator

Description:...eat (4 pulses/2 s; repeats every 10 s) Output Current: Adjustable from 0-70 mA(HI range) 0-6.0mA (LO range) Stimulus Pulse: Square Wave Monophasic pulses (200-us duration) Indicators: Digital LCD shows current delivered to the patient in mA. Battery LED (green) indicates that the unit is on; it flashe...
Company:CCR Medical
Pulses in Medical Dictionary

Ultrasound

...d can help doctors look inside a patient's body to see everything from ... The ultrasound machine transmits high-frequency (1 to 5 megahertz) sound pulses ... Ultrasound can help doctors look inside a patient's body to see everything from ... The Future of Ultrasound . Lots More Information. See a...

Spine MRI

...rauma setting to rule out acute compression of ... Magnetic resonance imaging ( MRI ) of the spine is a test that uses a magnetic field and pulses of radio wave energy to make pictures of the spine . Free reference information from The NY Times on medical tests, normal results, abnormal re...

Pacemaker

...A pacemaker is a small device that's placed under the skin of your chest or abdomen to help ... The pacemaker's generator sends the electrical pulses that ... Learn about the pacemaker - an electronic device used to treat patients with abnormally slow or irregular heartbeats on MedicineNet.com...

MRI

...like your chest wall, heart, and blood vessels. Radio waves, ... A magnetic resonance imaging ( MRI ) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. Supplies multimedia audience research to magazines, television, ...

MRI of the head

...I get them? ... What is MRI of the Head ? ... Magnetic resonance imaging ( MRI ) of the head is a test that uses a magnetic field and pulses of radio wave energy to provide pictures of your head . A magnetic resonance imaging ( MRI ) scan of the head is a noninvasive method to ...

Funnel

...u̇d ) ( meteorology ) The popular term for the tornado cloud, often shaped like a funnel with the small end nearest the The injection of laser pulses into hydrodynamically preformed plasma channels ... To solve this problem, a funnel -shaped plasma lens can be grafted onto the ... Manufac...
Pulses in Biological News

Killer pulses help characterize special surfaces

CHAMPAIGN, Ill. Detecting deadly fumes in subways, toxic gases in chemical spills, and hidden explosives in baggage is becoming easier and more efficient with a measurement technique called surface-enhanced Raman scattering. To further improve the technique's sensitivity, scientists must design b...

Insulin pulses keep the liver lean

Insulin, a hormone long recognized as a generator of fat, also keeps fat in the liver under control, according to a new study in the July issue of Cell Metabolism. The newly discovered role for insulin may explain how an organ frequently flooded with the fat-building hormone normally stays trim and...

Field of beams - Novel system uses polarized light pulses to reveal crop health

Mathematical models have become invaluable decision-making tools for public health officials. As demonstrated during the United Kingdom's foot-and-mouth epidemic of 2001, models can be useful in two ways: they can reveal the underlying characteristics of an infection and they can allow the comparis...

Urban water ecology at the ESA annual meeting

...ped lakes, insect outbreaks often happen in pulses, in which insects emerge over a short time period, but Francis and her team found no signs of these pulses in highly developed areas. This disparity was apparent in fish food availability: In the four lakes, terrestrial insects comprised up to 100 percent o...

Jet-propelled imaging for an ultrafast light source

...Among the promises of superbright, ultrafast x-ray pulses is the ability to solve the structure of the compl...The x-rays will be delivered 120 times a second in pulses only a tenth of a trillionth of a second long abo...vel the width of a human hair. These brief, bright pulses offer a novel approach to the problem of protein s...

All-in-1 nanoparticle: A Swiss Army knife for nanomedicine

... Nanoparticles are being developed to perform a wide range of medical uses imaging tumors, carrying drugs, delivering pulses of heat. Rather than settling for just one of these, researchers at the University of Washington have combined two nanoparticles in one tiny package. ...
Pulses in Biological Technology

Killer pulses help characterize special surfaces

CHAMPAIGN, Ill. Detecting deadly fumes in subways, toxic gases in chemical spills, and hidden explosives in baggage is becoming easier and more efficient with a measurement technique called surface-enhanced Raman scattering. To further improve the technique's sensitivity, scientists must design b...

New technique measures ultrashort laser pulses at focus

Lasers that emit ultrashort pulses of light are used for numerous applications including micromachining, microscopy, laser eye surgery, spectroscopy and controlling chemical reactions. But the quality of the results is limited by distortions caused by lenses and other optical components that are p...

Transient Gene Expression Following Single and Double Exponential Decay Electroporation Pulses

James R. Wong, Ph.D. and Wei-Yu Lin, Bio-Rad Laboratories Summary A double pulse format for electroporation of mammalian tissue culture cells gave lower transient expression than a single exponential decay pulse. Moreo...

Scientists create metal that pumps liquid uphill

...e of a metal, forming nanoscale and microscale pits, globules, and strands across the metal's surface. The laser, called a femtosecond laser, produces pulses lasting only a few quadrillionths of a seconda femtosecond is to a second what a second is to about 32 million years. During its brief burst, Guo's la...

NIST's LIDAR may offer peerless precision in remote measurements

...light from crystals. The two combs operate at slightly different numbers of pulses per second. pulses from one comb are reflected from a moving target and a stationary reference...

A supercharged metal-ion generator

...counterintuitive, he says, "we don't break any laws of nature, we've just shaken up a few assumptions." The trick is to send short, very high-power pulses through the magnetron at a low repetition rate. When the voltage is high enough, the ion current does not fall off as the gas is depleted but instead,...
Pulses in Biological Products

CapSure HS LCM Caps with 32 ExtracSure devices and 12 PrepStrips (Alignment Tray and Incubation Block required, not included) from Arcturus, now part of Molecular Devices

Description:...M Caps have a patented transfer film bonded to the lower cap surface. Using the PixCell, AutoPix or Veritas Microdissection Systems, an infrared laser pulses through the top of the cap during LCM and interacts with the transfer film, which then melts and bonds to the cells or regions of interest. The film a...
Company:Arcturus, now part of Molecular Devices

CapSure Macro LCM Caps - Bulk Pack from Arcturus, now part of Molecular Devices

Description:...M Caps have a patented transfer film bonded to the lower cap surface. Using the PixCell, AutoPix or Veritas Microdissection Systems, an infrared laser pulses through the top of the cap during LCM and interacts with the transfer film, which then melts and bonds to the cells or regions of interest. The film a...
Company:Arcturus, now part of Molecular Devices

CapSure Macro LCM Caps from Arcturus, now part of Molecular Devices

Description:...M Caps have a patented transfer film bonded to the lower cap surface. Using the PixCell, AutoPix or Veritas Microdissection Systems, an infrared laser pulses through the top of the cap during LCM and interacts with the transfer film, which then melts and bonds to the cells or regions of interest. The film a...
Company:Arcturus, now part of Molecular Devices

CapSure HS LCM Caps Starter Pack with Alignment Tray, Incubation Block, 24 ExtracSure devices and 12 PrepStrips from Arcturus, now part of Molecular Devices

Description:...M Caps have a patented transfer film bonded to the lower cap surface. Using the PixCell, AutoPix or Veritas Microdissection Systems, an infrared laser pulses through the top of the cap during LCM and interacts with the transfer film, which then melts and bonds to the cells or regions of interest. The film a...
Company:Arcturus, now part of Molecular Devices

CapSure HS LCM Caps - Bulk Pack (Alignment Tray and Incubation Block required, not included) from Arcturus, now part of Molecular Devices

Description:...M Caps have a patented transfer film bonded to the lower cap surface. Using the PixCell, AutoPix or Veritas Microdissection Systems, an infrared laser pulses through the top of the cap during LCM and interacts with the transfer film, which then melts and bonds to the cells or regions of interest. The film a...
Company:Arcturus, now part of Molecular Devices
Pulses in Biological Definition

Brain

... of cells : glia and neurons . Glia function primarily to support and protect the neurons. The neurons carry information in the form of electrical pulses known as action potentials . They communicate with other neurons in the brain and throughout the body by sending various chemicals called neurotran...

Electrophysiology

...hloroplatinic acid. Electrodes of this type are used to measure electrical pulses in unmyelinated axons down to 100 nm. There are four main types of cellul... 4. Axon recording. Advantages: Chemistry of cell is unchanged, axon pulses are discriminated from the less frequent retrograde cell action potentials....

Magnetic resonance imaging

... slightly more are oriented parallel. The tissue is then briefly exposed to pulses of electromagnetic energy in a plane perpendicular to the magnetic field,...i to assume a temporary non-aligned high-energy state. The frequency of the pulses is governed by the Larmor Equation . As the high-energy nuclei relax an...
Pulses in Biological Dictionary

Electroporation

... an externally applied electrical field. It is usually used in... electroporation ( i′lektrōpə′rāshən ) ( biology ) The application of electric pulses to increase the permeability of cell membranes Transformation of E. coli by Electroporation ... For electroporation , cells are also grown t...
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