Gasket pressing tool and drug administration tool using the same
US12343508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2020 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Sep 15, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/31508
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A gasket pressing tool includes a syringe attachment member attached to an outer tube, a gasket pressing member that presses a gasket of a syringe, a pressing member biasing body accommodated in the gasket pressing member, a biasing body pressing tubular member that accommodates a rear end portion of the pressing member biasing body and has side portions provided with opening portions, and movement restriction members of the pressing member held by the tubular member and having engagement protrusions that enter through the opening portions of the tubular member. The pressing tool has an engaged state maintaining function for the engagement protrusion of the movement restriction member and the pressing member-side engagement portion of the pressing member, and an operation function for the engagement protrusion for releasing the engagement therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.