David M Johnson

Title: David M. Johnson and Medical Device Innovations.

Introduction

David M. Johnson is an inventor based in Ham Lake, Minnesota, whose patent work includes technologies for implantable medical devices. His listed inventions address battery construction and electrical connections within medical devices. Johnson is associated with Medtronic, Inc., and has 2 patents in the provided information.

Latest Patents

Johnson’s listed patents focus on components that support reliable operation and assembly of implantable medical devices.

- **Implantable medical device battery.** This invention describes a battery with a tubular housing whose exterior is made of biocompatible material. A battery header closes the housing to form a substantially sealed enclosure containing one or more voltaic cells. A feedthrough connects the cells to a terminal outside the enclosure. The header also has a radial groove designed to receive a mating snap-fit electronic component subassembly.

- **Medical device having resistance welded connections.** This invention concerns a medical device that transmits electrical signals between the device and biological tissue. Its control circuit assembly is enclosed within a housing and includes an electrically conductive terminal. A connecting member links an electrical component to the control circuit assembly and is resistance welded directly to the terminal.

Career Highlights

The available information identifies Johnson’s work with Medtronic, Inc., a company associated with medical technology. His listed patents address practical design considerations, including a sealed battery enclosure, a snap-fit interface, and a directly welded electrical connection.

Collaborations

The provided information lists Mathieu K. Horié and Iryna M. Levina as Johnson’s coworkers. It does not specify their roles in the patents described here.

Conclusion

David M. Johnson’s listed patent work centers on battery design and electrical connections for medical devices, reflecting a focus on components that support implantable technology.