Suction catheter for rapidly debriding abscesses
US6428498B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 14, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Apr 14, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/86
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device 10 particularly adapted for debriding an abscess, phlegmon, or hematoma in a human or veterinary patient, for removing debrided and other materials from the abscess and for draining the abscess first includes a flexible catheter 12 having a longitudinally extending flow lumen 14, a rounded distal tip 16, a side portion 18 extending proximally from the distal tip 16 and an oval or other lateral opening 20, 44 or 46 extending through the side portion 18. The device also includes a cutting cannula 22 positionable in and longitudinally slidable in the flow lumen 14 in the catheter 12. The cannula 22 has an open distal end 24 and a sharp, beveled circumferential cutting edge 26 formed on the open distal end 24, the circumferential cutting edge 26 being disposed perpendicularly to the flow lumen 14 of the catheter 12. Upon movement of the cannula 22 in the flow lumen 14, the cutting edge 26 moves across the lateral opening 20 and cuts any material extending through the lateral opening 20 of the catheter 12. The cannula 22 further has a proximal end 30 opposite the open distal end 24 adapted for the application of suction thereto. The catheter 12 is capable of draining th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.