Catheter, probe or similar device
US4717379A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Feb 28, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter, probe or a similar device is intended to be inserted into a body cavity. The catheter (1) is double-walled over a substantial portion of its length, at which the inner wall (5) on the outside and/or the outer wall (6) on the inside is provided with longitudinal partitions for forming separate longitudinal passages (3) between the walls (5,6). The passages (3) are perforated from the outside of the catheter by a plurality of capillary holes (4). Into at least some of the passages (3) a fluid, i.e. compressed air or liquid, or a cream or gel-like substance, is intended to be inserted for obtaining a lubrication of the mucous membranes of the body cavity during the insertion. Thus, irritation of the mucous membranes of the body cavity is avoided during the insertion and longer insertion periods are permitted without risk of infection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.