Shape memory actuators for adjustable shunting systems, and associated systems and methods
US12090290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2022 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Mar 8, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/1139
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present technology is directed to adjustable shunting systems having a shunting element, a shape memory actuator, and a lumen extending therethrough for transporting fluid. The shape memory actuator can have a plurality of struts proximate the shunting element and a plurality of projections extending from the plurality of struts. In operation, the shape memory actuator can be used to adjust a geometry of the lumen. In some embodiments, the system is configured such that (a) any strain in the shape memory actuator is concentrated in the struts, and/or (b) the struts experience greater resistive heating than the projections when an electrical current is applied to the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.