Percutaneous arterial to venous anastomosis clip application catheter system and methods
US11653923B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Mar 28, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of creating an anastomosis includes steps of advancing a distal tip of a catheter device through a first blood vessel into a second blood vessel, while simultaneously advancing a proximal base of the device into the first vessel, contacting a wall of the first vessel with a distal blunt surface on the proximal base. A further step is to retract the distal tip so that a proximal blunt base of the distal tip contacts a wall of the second vessel, thereby capturing the two vessel walls between the blunt surfaces of the proximal base and the distal tip. A controlled pressure is applied between the two blunt surfaces to compress and stabilize the captured tissue and approximate the vessel walls. A clip is deployed through the captured tissue to hold the tissue in place during the anastomosis procedure. The anastomosis is created by applying cutting energy to the captured tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.