COMPOSITE WIRE WITH COATING
Patent Information
- Application Number
- IT502026000033109
- Authority / Receiving Office
- IT · IT
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-08-10
- Filing Date
- 2023-08-09
- Publication Date
- 2026-07-22
- Estimated Expiration
- 2043-08-09
AI Technical Summary
Existing biostimulation leads, such as cardiac pacemaker leads, face challenges with fatigue resistance due to the high number of flexural cycles required, with materials like 35N LT not providing sufficient longevity and flexibility for new designs and applications.
A composite wire is developed using a nickel-titanium alloy shell with a conductive core, coated with polyimide, which is thermomechanically treated to maintain a desired shape and withstand high temperatures, enhancing fatigue resistance and maintaining electrical isolation.
The composite wire exhibits improved fatigue endurance, surviving at least 10^8 cycles at 0.5% alternating strain, with the polyimide coating maintaining integrity and allowing for new designs in medical devices.