Method and device for retrieving embolic coils
US6673100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | May 25, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2825
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and device are disclosed for retrieving embolic coils used for treating an aneurysm of a patient. The method comprises the steps of providing a wire device that is pushable through a microcatheter and has a flexible distal portion comprising distal collapsible arms with a latch member carried by one of the arms. The microcatheter is introduced into a patient's vessel leading to the aneurysm. The wire device, distal end first, is introduced into the microcatheter whereby the arms collapse while they are within the microcatheter. The distal end of the wire device is pushed through the microcatheter whereby the arms open when they extend out of the distal end of the microcatheter. The latch member is manipulated so that it engages an embolic coil to be retrieved. The latch-engaged embolic coil and wire device are withdrawn through the catheter, whereby the arms become collapsed as the arm is withdrawn through the catheter, securing the latch and the embolic coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.