Medical puncture needle
US11033691B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2018 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Apr 30, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical puncture needle comprising includes: a rod-shaped body portion; and a blade surface formed at a distal end portion of the rod-shaped body portion. The blade surface includes: a first blade surface portion that is inclined with respect to a central axis of the body portion and extends to a tip, and a second blade surface portion that is formed on a back side of the first blade surface portion. A blade edge extending to the tip is formed by a ridgeline at which the first blade surface portion intersects the second blade surface portion. The second blade surface portion comprises a first plane and a second plane having different angles with respect to a virtual plane including the central axis passing through the tip at an orthogonal cross-section that is orthogonal to the central axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.