Single-chamber, multi-section balloon for cardiac assistance
US3939820A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1974 |
| Grant date | Feb 24, 1976 |
| Priority date | — |
| Expiry date | Oct 29, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1052
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device to be inserted in a blood vessel in order to aid the pumping of blood in only one direction within that vessel which comprises a gas inflatable and deflatable chamber mounted on support means and divided into an occluding section and a pumping section in direct communication with each other, such that it is necessary to deliver gas directly only to the occluding section, thereby enabling the occluding and pumping sections to be mounted on the support means in any order which further enables the device to be inserted from either above or below the vessel and which also permits thinner and therefore more easily insertable support means when the sections are mounted for insertion from below.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.