Expandable cardiac shunt
US9789294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/125
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are cardiac shunts and method of delivery, and in particular, to a shunt to reduce elevated left atrial pressure (LAP). The methods include forming a puncture hole between the left atrium and the coronary sinus, widening the puncture hole, and placing an expandable shunt within the widened puncture hole. A first catheter having a side-extending needle may be used to form a puncture into the left atrium. A second catheter extends along a guidewire and an expandable shunt with distal and proximal flanges is expelled therefrom into the puncture. The shunt defines a blood flow passage therethrough that permits shunting of blood from the left atrium to the coronary sinus when the LAP is elevated. The shunt is desirable formed of a super-elastic material and manipulated with control rods. The shunt defines a tilted flow tube that facilitates collapse into the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.