This inventor holds 4 USPTO granted patents. Top assignees: Engineering Research Associates, Inc., Other. Active years: 1977-1983.
Company Filing History:
3 out of 65 
1 out of 834,411 Years Active: 1977-1983
Title: The Innovative Contributions of Evan W. Rosen
Introduction
Evan W. Rosen is a notable inventor based in Tucson, Arizona, recognized for his contributions to medical technology. With a total of four patents to his name, he has made significant advancements in the field of blood collection devices. His innovative approach combines engineering principles with practical applications to enhance medical procedures.
Latest Patents
One of Evan's latest patents is a blood collection bag weighing device. This device features a blood collection bag suspended from a leaf spring. When the weight of a properly filled blood collection bag causes the leaf spring to reposition a specified distance, it energizes an electrical circuit. This circuit generates a pulse that momentarily energizes a coil near a permanent magnet, disrupting the magnetic field. As a result, a clamp is actuated to terminate the flow of blood to the bag upon the release of a weight retained by the magnetic field. This innovative mechanism ensures a more efficient and controlled blood collection process.
Career Highlights
Throughout his career, Evan W. Rosen has worked with various organizations, including Engineering & Research Associates, Inc. His experience in these roles has allowed him to develop and refine his inventions, contributing to advancements in medical technology.
Collaborations
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Conclusion
Evan W. Rosen's innovative contributions to medical technology, particularly in blood collection devices, highlight his commitment to improving healthcare practices. His patents reflect a blend of engineering ingenuity and practical application, making a significant impact in the field.