Surgical stapler drive apparatus
US4596350A · kind A · utility
63Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1984 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | May 10, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/0684
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a surgical stapler having a driver and an anvil for forming a staple in tissue, a four-bar linkage is driven by a drive cam which is at least partially curved. The curved cam provides, with the linkage, an increasing mechanical advantage for reducing forces required to operate the stapler and to form a staple. The drive minimizes the range of forces required to operate the stapler throughout an operating cycle. Cam and linkage relationships are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.