Method of making a knit with barbs
US9510927B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Nov 11, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2509/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a method for producing a knit, said method comprising the following steps:—a) knitting first yarns of biocompatible polymer materials, a second yarn, which is a monofilament yarn, and a third yarn, which is a monofilament yarn, which are made of the same biocompatible hot-melt material, the diameter of the second yarn being strictly greater than the diameter of the third yarn:—said second and third yarns generating loops protruding from one face of said knit,—b) thermosetting the knit obtained at a),—c) placing the face of the knit with loops flat on a heated cylinder, resulting in i) the complete melting and elimination of the loops formed from the third yarn, and ii) the partial melting of the loops formed from the second yarn, said partial melting causing the rupture of each loop and, therefore, the formation, for each loop, of two barbs protruding outwards from the face of said knit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.