Circular stapler and staple head assembly thereof
US10136888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2015 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Sep 24, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/07285
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A circular stapler includes a staple body and an anvil assembly. The staple body includes an annular staple cartridge and an annular cutter located at a distal end thereof. The anvil assembly includes an annular anvil, an annular cutting pad and an anvil shaft. When the staple body and the anvil assembly are closed, the annular staple cartridge is associated with the annular anvil and the annular cutting pad to form at least two connected fixing spaces having height difference. The circular stapler facilitates fixing the severed staples for easily cutting. A buffer may be formed between the tissues near the new formed staples and the tissue near the severed staples in order to avoid or reduce lateral slipping, thereby reducing dragging the tissues on the end face of the anvil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.