Delivery system and package for a self adhering polymer medical dressing
US4787380A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1987 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Aug 28, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/00868
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The delivery system and package for a self adhering polymer medical dressing includes a film carrier and a siliconized release paper and a film backing sheet sandwiched therebetween. The film backing sheet has two parts; a dressing and a bounding area heat sealed to the film carrier. The dressing area being defined by a cut line just inside the heat sealed area. The sandwich forms a contamination barrier package. The adhesive coating and siliconized release paper form a barrier on that side of the dressing and the film carrier and the heat seal form a barrier package. The adhesive is on the other side of the dressing. A part of the cut line is perforated to resist separation of the dressing during removal of the siliconized release paper. The manufacturing method includes the steps of; transferring the release paper and adhesive to the film backing sheet, cutting the film backing sheet to define the dressing, heat sealing the film carrier about the edges of the cut line of the dressing and severing individual dressings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.