Dottering auger catheter system and method
US5263959A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1991 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Oct 21, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3933
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The Dottering Auger Catheter system is designed for penetration of tight stenoses or total occlusions (called blockages) as a precursor to balloon angioplasty, atherectomy, or any other vessel opening means that requires an initial passageway. Specifically, the Dottering Auger Catheter system consists of a centering catheter and a Dottering auger catheter which is a catheter that opens a passageway through an arterial blockage by passing its wedge shaped distal end through that blockage causing outward plastic deformation of the plague; i.e., angioplasty. A centering catheter that surrounds the Dottering Auger Catheter can be used to center the distal end of the auger catheter just proximal to the blockage. The purpose of the auger type of Dottering catheter is to penetrate through the blockage by means of a self-tapping screw at the catheter's distal end. Once the first thread of the screw is pushed into the blockage, rotation of the catheter resulting from turning a handle at the catheter's proximal end will cause the screw to pull itself through the blockage while a push force on the handle is also applied. Once the auger has Dottered a passageway through the blockage, the auger…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.