HOME >> BIOLOGY >> NEWS
NIST Machine To Aid In Making Better Artificial Joints

The material of choice for longer-lasting orthopedic implants--such as joint replacements for hips and knees--is ultrahigh molecular weight polyethylene paired with an alloy of cobalt and chromium, a combination that has proven to be durable and compatible with the human body. But even joints made from these components last only about a decade, prompting industry to search for better materials.

Innovative devices have been needed desperately to speed up the screening of new materials for orthopedic implants; it takes about six months for conventional equipment to simulate the natural wear of artificial hips. Such a long testing period results in higher research and development costs for companies trying to bring better products to market.

So, NIST and four companies teamed under cooperative research and development agreements to design and construct a new apparatus to do the job. The resulting machine can evaluate a diverse combination of materials, produces debris and changes in surface texture resembling the wear that implants get in the body, and can complete a screening in about one week.

Now that the device has been tested successfully, the next step in the industry/government collaborative effort (the CRADAs soon will be extended for two years) will be to use it to study how potential, alternative implant materials hold up under the effects of motion, environment and a variety of stress-loading cycles that represent the physical routines of different people).

The four companies that supported the development of the accelerated wear device and intend to extend their CRADAs with NIST as part of the Orthopedic Accelerated Wear Resistance Consortium are Biomet Inc., and Zimmer Inc., both in Warsaw, Ind.; Johnson & Johnson Professional Inc., Raynham, Mass.; and Osteonics Corp., Allendale, N.J. NIST researchers involved in the development of the new machine are John A. Tesk, Ming Shen and Steve Hsu.

Pot
'"/>

Contact: Emil Venere
emil.venere@nist.gov
(301) 975-5745
National Institute of Standards and Technology (NIST)
24-Jul-1998


Page: 1 2

Related biology news :

1. Darwins Time Machine: Scientists begin predicting evolutions next step
2. Porous Silicon Joining Humans To Machines
3. Whitehead Receives $7 million NIH Grant To Build High-Speed Sequencing Machines
4. New Insights Into The Transport Machinery Of The Cell: A Single Protein Substitutes The Regulatory Machinery Specifying Endosome Fusion In Vitro
5. New Machine Slashes Time, Cost To Make Unique Lenses
6. Crystal Structure Of The Archaeal Chaperonin Thermosome, A Protein-Folding Machine, Determined
7. Prostate Cancer Switch May Yield Map Of Cancer Machinery, Targets For Drugs
8. Insights Into The Proteasome - A Fascinating Macromolecular Machine For Protein Degradation
9. Cooking And Salad Oils Could Lubricate Cars, Boats, Machines
10. Making a friendlier mosquito
11. Making sense of the brains mind-boggling complexity

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/26/2020)... ... ... Modality Solutions, a biopharmaceutical cold chain validation engineering firm, is pleased ... the most prestigious ranking of the nation’s fastest-growing private companies. Modality Solutions made the ... revenue growth of 71 percent. , The Inc. 5000 list represents a unique ...
(Date:8/21/2020)... Calif. (PRWEB) , ... August 19, 2020 , ... ... both Salimetrics LLC and SalivaBio LLC, businesses dedicated to Salivary Bioscience for more ... of the recently published book by Springer, " Salivary Bioscience: Foundations of Interdisciplinary ...
(Date:8/12/2020)... ... August 11, 2020 , ... Both ... NJ, have entered into license agreements with Housey Pharma’s HMI subsidiary to gain ... and J&J have annual Research and Development spending in excess of US $10 ...
Breaking Biology News(10 mins):
(Date:8/15/2020)... SCOTTSDALE, Ariz. (PRWEB) , ... August 13, 2020 ... ... 4254 on its annual Inc. 5000 list, the most prestigious ranking of the ... successful companies within the American economy’s most dynamic segment—its independent small businesses. Intuit, ...
(Date:8/7/2020)... ... August 06, 2020 , ... VGXI, ... it has closed on the purchase of greenfield for a new, expanded manufacturing ... includes over 21 acres in the initial acquisition, with an option to purchase ...
(Date:7/31/2020)... ... 29, 2020 , ... G-CON Manufacturing, the leader in off-site ... FOR LIFE.” The adoption of this taglines comes at a time of tremendous ... to provide patients with urgently needed vaccines and other lifesaving pharmaceutical treatments. G-CON’s ...
(Date:7/31/2020)... ... July 29, 2020 , ... eSource has long been touted ... will cover the history of eSource, the reasons it did not take off as ... to site source, the industry is moving towards capturing data electronically for clinical trials ...
Breaking Biology Technology:
Cached News: