Braid reinforced infusion catheter with inflatable membrane
US6186978A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1997 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Jul 31, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This is a surgical device particularly a perfusion catheter having an inflatable membrane or balloon located at the distal end of the catheter shaft. The catheter shaft is comprised of an outer tubing assembly and an inner tubing assembly separated by an open annulus for inflating and deflating the inflatable membrane. The assembly may additionally comprise an inflatable membrane which is detachable. The outer tubing assembly is made up of at least one polymeric layer and a braid which may be polymeric or metallic, perhaps of a super-elastic alloy. At least a portion of the inner tubing assembly is made up of at least one polymeric layer and preferably a super-elastic metallic braid. The inner tubing assembly includes a lumen through which a guidewire may pass. It is further desirable that the inner tubing assembly include a coil member which generally is coextensive with the balloon along its axis. That lumen is preferably lined with a lubricious polymer. The outer tubing assembly allows the profile of the catheter to be minimized and yet provides significant kink-resistance to the inner tubing assembly. The structure of the inner tubing assembly provides resistance to premature i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.