2007 News Archives

December 4, 2007 US Patent 7,304,097 Issues

CPG researchers were inventors on recently issued US patent 7,304,097. This patent discusses highly cross-linked polyethylene.

October 17, 2007 Space Shuttle Launch

NASA space shuttle flight STS-120, to be launched on October 23rd, 2007, will be flying an experiment designed by CPG researcher and MIT Professor Gareth McKinley, and assisted by researchers Gavin Braithwaite and Stephen Spiegelberg. The experiment is a micro-shear rheometer similar to the CaBER® which will assess the effects of pre-shearing on the extensional properties of a model test fluid.

October 15, 2007  Injectable hydrogel for Mitral Regurgitation

Material being developed by CPG researchers Jason Berlin and Gavin Braithwaite will be featured in a presentation by Dr. Judy Hung at the Massachusetts General Hospital. The presentation, "Injection of a Biomaterial Polymer Results in Reverse Remodeling of Displaced Papillary Muscles and Reduction in Acute Ischemic Mitral Regurgitation," will be presented at  the American Heart Associations The Best of Scientific Sessions 2007 and is available online by following the link below.

October 5, 2007 BoneZone

A scanning electron microscope image of a bone cement mantle taken by CPG researchers is featured on the cover of the latest issue of BoneZone (volume 6, issue 3, 2007), a publication by Knowledge Enterprises.

October 4, 2007 Handbook of Experimental Fluid Mechanics

CPG researchers Gareth McKinley and Stephen Spiegelberg were co-authors on a chapter in the recently released book "Springer Handbook of Experimental Fluid Mechanics". Their chapter deals with experimental techniques in extensional rheology.

August 14, 2007  US Patent 7235592 issues

CPG researchers were inventors on recently issued US patent 7235592. This patent discusses methods of preparing transparent hydrogels, with potential uses in biomedical applications.

August 8, 2007 CPG scientist Dr. Ayyana Chakravartula to teach at Boston University - Fall Semester 2007

CPG scientist Dr. Ayyana Chakravartula taughtMN/BE 523 (Mechanics of Biomaterials) at Boston University in the Fall Semester (2007).

This course will include fundamentals of materials science, mechanics of materials and materials selection exercises.  Interactions of implantable biomaterials with cells and biological fluids, corrosion and wear, foreign body response and controlled degradation for tissue regeneration and drug delivery will also be explored.  Students will also be introduced to models of soft material constitutive behavior, fatigue and failure prediction, and mechanical testing of tissues and other biomaterials.

August 1, 2007 CPG Moves to a New Laboratory

CPG moved to a new 15,000 sq foot facility on August 1st, 2007. Our new address is 56 Roland St., Suite 310, Boston, MA 02129. All phone numbers are the same as before.

July 27, 2007 Polyethylene co-developed at CPG implanted into patient

Surgeons at the Massachusetts General Hospital (MGH)  have performed the first total hip replacement using a joint socket lined with a novel polyethylene invented at Cambridge Polymer Group and MGH.  The polyethylene, which contains Vitamin E to stabilize the crosslinked polyethylene against oxidation, was licensed to Biomet and Zimmer. The device implanted on July 16th was a Biomet hip implant.

June 22, 2007  Omtec 2007

CPG researcher Stephen Spiegelberg was an invited speaker at The 3rd Annual Orthopedic Manufacturing & Technology Exposition and Conference (OMTEC 2007) on June 20-21st. OMTEC is a conference focused on optimizing supply chain performance and profitability, minimizing product development cycle times, and maximizing speed to market.

May 22, 2007 ASTM standard for DSC of UHMWPE

ASTM standard F2625 "Standard Test Method for Measurement of Enthalpy of Fusion, Percent Crystallinity, and Melting Point of Ultra-High-Molecular Weight Polyethylene by Means of Differential Scanning Calorimetry" publishes. CPG researchers chaired the task force in charge of drafting the document.

May 15, 2007 CPG Introduces Vascular Tissue Models

CPG has developed an arterial model that matches the compliance of human vascular tissue. The model can be used for testing of stents, catheters, and reaming tools, as well as for training purposes. Contact CPG for more information.

January 23, 2007 U.S. Patent 7,166,650 issues

U.S. Patent 7,166,650 "High modulus crosslinked polyethylene with reduced residual free radical concentration prepared below the melt" issues to CPG inventors McKinley and Spiegelberg.

January 18, 2007 CPG engineer participated in MIT Career Day

CPG engineer Bayen Miller participated in MIT's Undergraduate Practice Opportunity Program luncheon to discuss job opportunities.

January 16, 2007 CPG researchers participated in a Biotechnology Career Day

CPG researchers participated in a Biotechnology career panel at Brighton High School to discuss education and career paths in the biotech area. The program was sponsored by the Private Industry Council in Boston.

January 8, 2007 CPG releases a new 3-station swell ratio tester

CPG releases a new 3-station swell ratio tester, the SRT-3, which allows simulataneous swelling measurements on 3 samples at once. The instrument is run with SRT software vs. 4.0 from a single laptop computer, and offers new features to facilitate sample loading.