Company Filing History:
1 out of 87 
1 out of 2,900 
1 out of 2 Years Active: 1986-2003
Title: The Innovative Contributions of Stephen P. Dretler
Introduction
Stephen P. Dretler is a notable inventor based in Wayland, MA (US). He has made significant contributions to the field of medical devices, particularly in the area of treating biological calculi. With a total of 4 patents to his name, Dretler's work has had a profound impact on medical procedures.
Latest Patents
Dretler's latest patents include innovative devices designed to enhance medical procedures. One of his notable inventions is the "Entraining Biological Calculi," which is a medical device aimed at entraining biological stones during medical procedures. This device facilitates the fragmentation of urinary, biliary, pancreatic, and other biological calculi, allowing for their safe removal from the body. The device features a guidewire with a longitudinally-extending wire core, which is wound to form a helical coil that tapers in diameter. This design incorporates a super-elastic deformable material that collapses upon retraction and reforms into a coil upon deployment.
Another significant patent is the "Impact Lithotripsy," which describes a method and apparatus for fracturing hard deposits such as urinary and biliary stones. This invention utilizes a flexible guide with a hard mass at the end, which is inserted through a fluid passage in a living body. An energy source creates rapid vapor expansion adjacent to the cap, causing it to move in a pulse-like manner and imparting a high-velocity impulse to adjacent deposits, effectively fracturing them.
Career Highlights
Throughout his career, Dretler has worked with various organizations, contributing his expertise to the field of physical sciences. His innovative approach to medical device design has positioned him as a key figure in the industry.
Collaborations
Dretler has collaborated with notable individuals such as David I. Rosen and Harry Petschek, further enhancing the impact of his inventions through teamwork and shared expertise.
Conclusion
Stephen P. Dretler's contributions to medical technology through his patents and collaborations have significantly advanced the treatment of biological calculi. His innovative devices continue to influence medical procedures, showcasing the importance of creativity and research in the field of healthcare.