Smart cartridge wake up operation and data retention
US10135242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | May 2, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electronic system for a surgical instrument is disclosed. The electronic system comprises a main power supply circuit configured to supply electrical power to a microprocessor, a supplementary power supply circuit configured to supply electrical power to a sensor, and an over current/voltage protection circuit coupled between the main power supply circuit and the supplementary power supply circuit. The over current/voltage protection circuit comprises a current limit switch. The current limit switch comprises a current resistor coupled to an amplifier, wherein, when the amplifier detects a surge current above a predetermined threshold, the amplifier activates a circuit breaker to interrupt the surge current, and wherein when the surge current is remedied, the supplementary power supply circuit rejoins the main power supply circuit and is configured to supply power to the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.