Medical puncture needle and method for manufacturing puncture needle
US10682473B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2017 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Jan 6, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21G1/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical puncture needle includes a rod-shaped main body portion; and a blade surface formed at a distal end portion of the main body portion. The blade surface includes a first blade surface portion and a second blade surface portion that intersect to form a blade edge. A needle tip is formed at a location at which a distal end of the blade edge intersects a first ridge line at an outer edge of the first blade surface and a second ridge line at an outer edge of the second blade surface. At least one of the blade surface portions is planar, and, in a central axis direction of the main body portion, said at least one blade surface portion extends to a location proximal of a middle position of a blade surface region in which the blade surface is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.