Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

‘Sonic Flashlight’ Puts Ultrasound Images in Physician’s Line of Sight For Placement of Long-Term Catheters

23.05.2005


A new device, called a “sonic flashlight,” offers a more efficient method of ultrasound guidance to place catheters in patients that will be used for repeated doses of chemotherapy or other treatments, a preliminary study shows.



Ultrasound can be used to help guide catheters, such as peripherally inserted central catheters, into place, said Wilson Chang, PhD, of the University of Pittsburgh and the lead author of the study. The difficulty occurs because the physician or nurse inserting the catheter has to look away from the patient to see the ultrasound monitor, he said. On the other hand, the sonic flashlight—which is an ultrasound probe with a two-inch monitor and a semi-transparent mirror—puts everything in front of the physician or nurse. The probe is placed on the area of the body where the catheter will be inserted. The monitor on the probe shows the ultrasound image, and the mirror makes the ultrasound images appear as if they are actually under the skin, said Dr. Chang.

The device was recently invented, and the study was undertaken to determine if physicians and nurses can easily learn how to use the device and if the device would make the catheter insertion process faster, said Dr. Chang. Sixteen medical students, with no ultrasound experience, performed 60 procedures on a vascular phantom (a body of material resembling body mass), and 14 IV nurses performed 18 procedures on the phantom. Both groups--experienced and inexperienced--were faster and more proficient with the sonic flashlight, compared to the standard ultrasound method, said Dr. Chang. The device has now been used on 15 patients, and “it has worked without a hitch,” according to Dr. Chang.


In 2003 at the University of Pittsburgh, between 10-15 patients per day had long-term catheters inserted under their skin, said Dr. Chang. It is a relatively common procedure, he said. “This device has the potential to increase patient safety, decrease the cost of this procedure and make it more comfortable for the patient because we could do it at the patient’s bedside with less training.” In addition, “the sonic flashlight might enable medical personnel to perform procedures under ultrasound guidance who are currently uncomfortable using ultrasound guidance,” he said.

The study will be presented on May 19 at the American Roentgen Ray Society Annual Meeting in New Orleans, LA.

Keri Sperry | EurekAlert!
Further information:
http://www.arrs.org

More articles from Health and Medicine:

nachricht Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University

nachricht ASU scientists develop new, rapid pipeline for antimicrobials
14.12.2017 | Arizona State University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

Im Focus: Successful Mechanical Testing of Nanowires

With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong

Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Plasmonic biosensors enable development of new easy-to-use health tests

14.12.2017 | Health and Medicine

New type of smart windows use liquid to switch from clear to reflective

14.12.2017 | Physics and Astronomy

BigH1 -- The key histone for male fertility

14.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>