Donald L Hannula

Title: Innovations by Donald L Hannula

Introduction

Donald L Hannula is a notable inventor based in Goleta, California. He has made significant contributions to the field of medical devices, holding a total of 5 patents. His work focuses on advanced systems that enhance patient care and treatment options.

Latest Patents

Hannula's latest patents include an attachment system, device, and method for a ventricular assist system. This innovative system features a pump, inflow conduit, outflow conduit, attachment ring, ring clamp, and a valvular structure. The attachment ring is designed to be affixed to the apex of the heart, while the valvular structure incorporates a flexible, one-way valve within a rigid housing. The inflow conduit can be introduced through the valvular structure and the attachment ring into a beating heart with minimal blood loss. Additionally, devices such as a slitting tool, coring knife, and C-clamp are integral to the system and method for implanting the ventricular assist device.

Another significant patent is the implantable demand medication delivery assembly. This assembly is designed to deliver measured aliquots of liquid medication. It includes a reservoir for storing the liquid medication and a pump that is in fluid communication with the reservoir. The pump features an inlet port connected to the reservoir and an outlet port linked to a delivery catheter for administering the medication to a specific site within the patient. The assembly also includes a chamber along the fluid passage for containing a preselected volume of liquid medication, with a resilient deformable wall extending over the chamber. A one-way valve and a pressure-regulated valve are also part of the assembly, allowing for controlled fluid flow.

Career Highlights

Throughout his career, Hannula has worked with prominent organizations, including American Hospital Supply Corporation and American Hospital Supply Company. His experience in these companies has contributed to his expertise in developing innovative medical solutions.

Collaborations

Hannula has collaborated with notable individuals in the field, including Russell J Redmond and Frederick L Coe. These partnerships have likely enriched his work and expanded the impact of his inventions.

Conclusion

Donald L Hannula's contributions to medical device innovation demonstrate his commitment to improving patient care through technology. His patents reflect a deep understanding of medical needs and a drive to create effective solutions.