Method of pulsatile neurovascular aspiration with telescoping catheter
US10661053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2017 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Feb 27, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7542
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of aspirating a vascular occlusion from a remote site is provided. The method includes the steps of advancing a first elongate tubular body through a vascular access site and into a body vessel, advancing a second tubular body distally to extend beyond the first elongate tubular body to reach the remote site, and aspirating thrombus from the site into the lumen by applying pulsatile vacuum to the first elongate tubular body. The second tubular body has a lumen and a length that is shorter than the first elongate tubular body. The pulsatile application of vacuum may cause the distal tip of the second tubular body to open and close like a jaw, which facilitates reshaping the thrombus or biting or nibbling the thrombus material into strands or pieces to facilitate proximal withdrawal under negative pressure through the lumen of the second tubular body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.