Visual indicator for cuff-type catheter
US4178939A · kind A · utility
17Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1977 |
| Grant date | Dec 18, 1979 |
| Priority date | — |
| Expiry date | Sep 29, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S116/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for visually indicating the degree of inflation of an inflatable cuff surrounding a catheter which is adapted to be inserted into a body passageway. The apparatus comprises a hollow-walled tubular member formed with a plurality of ridges and valleys and is selectively inflatable into a balloon-like shape in response to the pressure of air applied to the cuff by means of a passageway extending into the tubular member. The member is collapsible without occluding the fluid passageway extending into the indicator apparatus and thus without preventing the deflation of the cuff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.