Company Filing History:
2 out of 1,627 
1 out of 309 
Years Active: 1988-2000
Title: Innovations by Charles E Biggerstaff
Introduction
Charles E Biggerstaff is a notable inventor based in Flagstaff, AZ (US). He has made significant contributions to the field of medical devices, particularly in the development of implantable technologies. With a total of 3 patents, his work has had a profound impact on medical practices.
Latest Patents
One of his latest patents is for a vascular shunt graft and junction for the same. This invention discloses an improved implantable medical device that provides a connection to a blood vessel resistant to occlusion. The design features improved anastomotic geometry and hemodynamics to minimize turbulence and inappropriate shear stresses on native blood vessels. Additionally, it includes an intraluminal configuration that does not require penetration through to the luminal surface of the blood vessel for anchoring. The device also protects the native blood vessel from the forces of blood flow and isolates injured tissues from the lumen. A cuff is provided at the junction to reduce blood leakage and enhance device anchoring.
Another significant patent involves an apparatus and method for extruding and expanding polytetrafluoroethylene (PTFE). This invention includes an apparatus with helical grooves in the wall of the extruder tip or die, which enhances the strength of the tubular products produced. The method results in expanded products with improved hoop strength compared to those extruded using smooth surfaces.
Career Highlights
Throughout his career, Charles has worked with prominent companies such as W. L. Gore & Associates, Inc. and Gore Enterprise Holdings, Inc. His experience in these organizations has allowed him to refine his skills and contribute to innovative medical solutions.
Collaborations
Charles has collaborated with notable individuals in his field, including Michael L Campbell and Benjamin G Williams. These partnerships have likely fostered a creative environment that encourages the development of groundbreaking inventions.
Conclusion
Charles E Biggerstaff's contributions to medical device innovation are noteworthy. His patents reflect a commitment to improving patient outcomes through advanced technology. His work continues to influence the medical field positively.