Electrical surgical instrument with optimized power supply and drive
US8573462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2007 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Apr 14, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument includes an end effector having an actuator effecting a surgical procedure when actuated, an electric motor operating the actuator, and a power supply actuating the actuator when power is supplied to the motor. The power supply has a battery cell with a given rated power for an operating period of over 15 seconds and for a total aggregate operating time of over 300 seconds. The motor and power supply are configured to utilize the battery cell at a power greater than the given rated power. The motor characteristics are selected to utilize the battery cell for periods of operation of less than 16 seconds and for a total aggregate operating time of less than 300 seconds. A one-handed handle contains all of the power supply, at least part of an anvil control assembly, and at least part of an electrically-powered stapler/cutter control assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.