Catheter shaft and catheter and method for the production thereof
US12337121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2020 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Aug 29, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7542
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A catheter having a catheter shaft connected to a two-part connecting piece. The catheter shaft includes a first tube forming an inflation lumen and a second tube disposed at least partially within the first tube to form a second lumen. The first tube and the second tube terminate proximally at a same longitudinal position. An outer surface of the second tube is welded longitudinally to an inner surface of the first tube to form a weld seam. The connecting piece includes a channel through a body of the connecting piece extending to and in fluid communication with the inflation lumen and a conical-shaped proximal section or element with a conical-shaped outer contour that fits into a distal element so that the second lumen seals around the proximal element and sole access to a proximal end of the inflation lumen is through the distal element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.