Retention balloon for percutaneous catheter
US5308325A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1991 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Jan 28, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved construction for an expandable and contractible retention member, such as a balloon, for body access tubes, to retain a distal open end of the tube against an inner body cavity wall of the patient. The balloon is secured to only the inner and outer peripheral edges of the distal open end of the tube by a sleeve. The sleeve has both an outer wall and an inner wall which receives, respectively, the outer and inner walls of the tube. The balloon includes an outer wall and an inner wall which defines an inflation chamber. The inflation chamber extends beyond the distal open end of the tube so that no portion of the tube passes through the chamber. The balloon includes an axial opening to permit passage of fluid out of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.