Fenestrated graft press cutting die assembly
US10105862B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Mar 31, 2017 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jul 14, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26F2001/4481
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An assembly and method of forming a press cutting die assembly that is configured to perforate a tissue graft blank during cutting of the blank from a bulk graft material. The press cutting die assembly includes a frame, a perimeter blade, and a plurality of fenestration blades that extend between respective portions of the perimeter blade. In a preferred embodiment, the plurality of fenestration blades are provided in at least two groups to form a repeating pattern of preferably uniformly spaced perforations within the perimeter of the blank. Such a press cutting die assembly is particularly applicable for cutting biologically compatible materials having a desired shape and uniform fenestration pattern from a bulk source of the biologically compatible material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.