Diagnostic and guiding catheter
US5984946A · kind A · utility
Inventor
Key dates
| Filing date | Feb 27, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Feb 27, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/1011
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Diagnostic and guiding catheter assemblies (28, 82) are provided which include an elongated tubular body (30) having a proximal end (32) and a preformed open distal end (34). An expandable distal positioning balloon structure (36) is operatively coupled with the tubular body (30) adjacent to the distal end (34). The tubular body (30) includes wall structure defining a main passageway (48) and a pressurizing tube passageway (46) extending between the proximal and distal ends (32, 34). A pressurizing tube (70) is positioned within the pressurizing tube passageway (46), and is in open communication with the distal balloon interior (66). The pressurizing tube (70) is configured for passing a pressurizing fluid from a source thereof into the distal balloon interior (66) for expanding the distal balloon structure (36). In an expanded state, the distal balloon structure (36) is configured for locating the distal end (34) within a first vessel (18) adjacent to an ostium of a second blood vessel (20), and for positioning the distal end (34) at a selected distance from the second vessel ostium. An alternative catheter apparatus (82) further includes an expandable biasing balloon structure (8…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.