Surgical instruments
US4429695A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1982 |
| Grant date | Feb 7, 1984 |
| Priority date | — |
| Expiry date | Jul 1, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/07207
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical stapling instrument has upper and lower elongate jaws for receiving a staple cartridge and an anvil respectively. A pusher bar and knife assembly including a pair of pusher bars and a central knife carrier moves longitudinally relative to the jaws to eject staples sequentially from the magazine and to form laterally spaced staple rows in tissue gripped between the jaws while the knife cuts the tissue along a line between the staple rows. The instrument includes structure for locally supporting the jaws in the region of the pusher bar cams and knife blade as these elements move along the jaws to resist forces created during staple ejection and shaping which tend to vertically separate and/or laterally distort the jaws.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.