Multiple-load cartridge assembly for a linear surgical stapling instrument
US4612933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Mar 30, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/0725
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multiple-load cartridge assembly for use with a linear surgical stapling instrument of the type which, when actuated, simultaneously implants at least one row of staples in the tissue of a patient and forms or clinches the staples of the row against the instrument anvil. The cartridge assembly comprises a cartridge having a row of staple-containing forming pockets and a driver having a plurality of blades equal in number to the number of forming pockets and configured to drive the staples from the forming pockets through the tissue to be sutured and against the instrument anvil to be clinched, when the surgical stapling instrument is actuated. The cartridge has at least one row of storage pockets, equal in number to the forming pockets, and each containing at least one staple. An indexing mechanism is provided to shift the at least one staple in each storage pocket to the line of action between the driver and the anvil after the first actuation of the surgical stapling instrument, for at least another actuation of the surgical stapling instrument. A safety interlock within the cartridge assembly assures correct sequential operation of the cartridge assembly and prevents jamming t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.