Puncture device
US9220838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2014 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Mar 25, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/502
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A puncture device comprising a hollow needle, a fixing portion fixed to the hollow needle, a sheath portion covering a part/entirety of the hollow needle and including a plastically deformable elongating member, a holding portion holding the hollow needle and the sheath portion in an integrated manner, with the holding portion positioned between the tip portion of the hollow needle and the plastically deformable elongating member, a holding release mechanism that releases the holding of the holding portion between the hollow needle and the sheath portion after the hollow needle and the sheath portion puncture the living body. The sheath portion elongates and is held in an elongated condition when the holding portion moves by the holding release mechanism, or when the holding of the hollow needle using the holding portion in an integrated manner is released, and the elastic portion contracts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.