Instrument for debriding fistula and applying therapeutic cells
US8858546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2010 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Aug 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/85
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A treatment system comprises an outer sheath and an end effector. The end effector has a plurality of cutting features, at least a portion of which are configured to debride a tissue surface when the end effector is actuated. The cutting features may also be configured to harvest tissue. A medical fluid reservoir is in fluid communication with the end effector, such that the end effector may deliver a medical fluid to a target site such as a fistula. The medical fluid may include harvested tissue cells and a scaffold material. A vacuum cannula may be positioned coaxially within the interior cavity of the end effector, and an RF probe may be positioned co-axially within the interior cavity of the vacuum cannula. The vacuum cannula and RF probe may be used together to seal a fistula in which medical fluid has been dispensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.