Dilation catheter
US5772681A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Oct 30, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1084
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dilation catheter comprising a sealed distal end section (8), an open proximal end section (3) and an elongated middle section with an elongated flexible balloon section (11). The middle section comprises an inner elastic tube (1), a reinforcement net (2) made of metallic monofilaments surrounding the inner tube (1) and an outer elastic tube (6) surrounding the reinforcement net (2). The reinforcement net (2) is made of metallic monofilaments crossing each other and being helically wound around the longitudinal axis of the middle section. There is no special bond between the monofilaments so that said filaments are moveable with respect to each other in the crossover points (5) during expansion of the balloon section (11). As a result the entire catheter assumes the geometrical configuration of the blood vessel during insertion and inflation of the dilation section without noticeable axial dislocation or distortion of the natural bent of the blood vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.