Featured Research

from universities, journals, and other organizations

'Beating' Heart Machine Expedites Research And Development Of New Surgical Tools, Techniques

Date:
May 13, 2009
Source:
North Carolina State University
Summary:
A new machine makes an animal heart pump much like a live heart after it has been removed from the animal's body, allowing researchers to expedite the development of new tools and techniques for heart surgery. The machine saves researchers time and money by allowing them to test and refine their technologies in a realistic surgical environment, without the cost and time associated with animal or clinical trials.

Researchers at North Carolina State University have developed a system that allows a pig heart to function in an approximately normal manner after being removed. This technology will expedite research into new surgical tools and techniques for heart surgeries.
Credit: Andy Richards, North Carolina State University

A new machine developed at North Carolina State University makes an animal heart pump much like a live heart after it has been removed from the animal's body, allowing researchers to expedite the development of new tools and techniques for heart surgery.

Related Articles


The machine saves researchers time and money by allowing them to test and refine their technologies in a realistic surgical environment, without the cost and time associated with animal or clinical trials.

Currently, most medical device prototypes designed for use in heart surgery are tested on live pigs, which have heart valves that are anatomically similar to human heart valves. However, these tests are both expensive and time-consuming, and involve a lengthy permission process to ensure that the use of live animals is necessary. So, researchers at NC State have developed a "dynamic heart system" – a machine that pumps fluid through a pig heart so that it functions in a very realistic way. "Researchers can obtain pig hearts from a pork processing facility and use the system to test their prototypes or practice new surgical procedures," says Andrew Richards, a Ph. D. student in mechanical engineering at NC State who designed the heart machine.

The computer-controlled machine, which operates using pressurized saline solution, also allows researchers to film the interior workings of the pumping heart – enabling them to ascertain exactly which surgical technologies and techniques perform best for repairing heart valves.

By using the machine, researchers can determine if concepts for new surgical tools are viable before evaluating them on live animals. They can also identify and address any functional problems with new technological tools. "There will still be a need for testing in live animal models," says Dr. Greg Buckner, who directed the project, "but this system creates an intermediate stage of testing that did not exist before. It allows researchers to do 'proof of concept' evaluations, and refine the designs, before operating on live animals." Buckner is an associate professor of mechanical and aerospace engineering at NC State.

Using the system could also save researchers a great deal of money. Once the machine is purchased and set up, the cost of running experiments is orders of magnitude less expensive than using live animals. "It costs approximately $25 to run an experiment on the machine," says Richards, "whereas a similar experiment using a live animal costs approximately $2,500."

The National Heart, Lung, and Blood Institute of the National Institutes of Health funded the development of the heart machine system.


Story Source:

The above story is based on materials provided by North Carolina State University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Richards et al. A Dynamic Heart System to Facilitate the Development of Mitral Valve Repair Techniques. Annals of Biomedical Engineering, 2009; 37 (4): 651 DOI: 10.1007/s10439-009-9653-x

Cite This Page:

North Carolina State University. "'Beating' Heart Machine Expedites Research And Development Of New Surgical Tools, Techniques." ScienceDaily. ScienceDaily, 13 May 2009. <www.sciencedaily.com/releases/2009/05/090512102547.htm>.
North Carolina State University. (2009, May 13). 'Beating' Heart Machine Expedites Research And Development Of New Surgical Tools, Techniques. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2009/05/090512102547.htm
North Carolina State University. "'Beating' Heart Machine Expedites Research And Development Of New Surgical Tools, Techniques." ScienceDaily. www.sciencedaily.com/releases/2009/05/090512102547.htm (accessed January 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, January 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

CDC: Get Vaccinated for Measles

CDC: Get Vaccinated for Measles

Reuters - US Online Video (Jan. 30, 2015) The CDC is urging people to get vaccinated for measles amid an outbreak that began at Disneyland and has now infected more than 90 people. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Obama To Outline New Plan For Personalized Medicine

Obama To Outline New Plan For Personalized Medicine

Newsy (Jan. 30, 2015) President Obama is expected to speak with drugmakers Friday about his Precision Medicine Initiative first introduced last week. Video provided by Newsy
Powered by NewsLook.com
NFL Concussions Down; Still on Parents' Minds

NFL Concussions Down; Still on Parents' Minds

AP (Jan. 30, 2015) The NFL announced this week that the number of game concussions dropped by a quarter over last season. Still, the dangers of the sport still weigh on players, and parents&apos; minds. (Jan. 30) Video provided by AP
Powered by NewsLook.com
U.S. Wants to Analyze DNA from 1 Million People

U.S. Wants to Analyze DNA from 1 Million People

Reuters - US Online Video (Jan. 30, 2015) The U.S. has proposed analyzing genetic information from more than 1 million American volunteers to learn how genetic variants affect health and disease. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins