Cartridge and driver assembly for a surgical stapling instrument
US4589582A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Aug 23, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/07264
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved cartridge and driver assembly is provided for a surgical stapling instrument of the type which drives staples through tissue to be joined and against an anvil to form the staples. The cartridge has a forming pocket or slot for each staple to be driven by a single actuation of the surgical stapling instrument. Each forming pocket is of elongated, transverse, biconvex cross-section, terminating in ends adapted to frictionally receive the legs of a surgical staple. The driver comprises a tine for each forming pocket, shiftable within the forming pocket to engage the crown of the staple to drive the staple from its forming pocket. Each driver tine is of substantially biconvex transverse cross-sectional configuration. Each forming pocket of the cartridge is of matching biconvex configuration to slidably receive its respective driver tine so that the tine engages the staple crown including those portions thereof directly over the staple legs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.