Puncture needle and catheter assembly
US12138434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2020 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | May 30, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/158
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A puncture needle for medical use includes: a main body that is rod-shaped and that comprises a distal end portion comprising a blade surface. The blade surface includes: a first blade surface portion that extends so as to incline with respect to a central axis of the main body, and a second blade surface portion that is formed on a back side of the first blade surface. A blade edge having a needle tip at one end is formed by a ridge line where the first blade surface portion meets the second blade surface portion. The first blade surface portion is constituted by a concave surface that is concave in a side view of the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.