Bandage
US4219019A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1979 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Feb 7, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L15/58
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bandage comprising, a tape strip having a pressure-sensitive adhesive on a front surface thereof to secure the bandage on a patient. The bandage has an absorbent pad comprising a sheet of nonwoven fabric secured on the front surface of the tape strip. The sheet has an inner layer of substantially hydrophilic fibers, and an outwardly facing surface layer of substantially hydrophobic fibers. The inner and surface layers are bonded together in substantially isolated highly compacted areas defining adjacent regions of substantially less compaction. The fabric is formed in a repeating series of wave-like undulations substantially throughout the dimensions of the fabric, with the interfiber spaces in the areas being substantially closed, and with the interfiber spaces in the regions being substantially open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.