Endoscopic biopsy instrument and method for taking a biopsy sample with helical cutting edge provided at the tip of a guidewire
US10806435B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2013 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Feb 17, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09183
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscopic biopsy instrument (1) is disclosed comprising a guide wire (2) arranged in a sheath (3), a drill device (5) arranged at a first end (4) of said guide wire (2), and an actuator (11) for actuating said drill device (5), said actuator being arranged at a second end (10) of said guide wire (2). The drill device (5) comprises an outer tube (6) and an inner cutting device (7). The inner cutting device (7) is slidable and rotatable inside said outer tube (6). The inner cutting device (7) has a helical cutting edge (8). An endoscope comprising such an endoscopic instrument (1) is also disclosed, as well as a method for taking a biopsy sample from a tissue of a subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.