Multi-functional syringe plunger and method of use
US11260179B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | May 17, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fat-harvesting syringe having a multi-functional plunger assembly. The plunger assembly comprises an outer plunger rod body, an inner central plunger rod and a piston seal assembly. The outer plunger rod body having a first and a second end. The first end having a central lumen all at its finger grip handle and at the second end having flanges that are expandable. Once the central plunger inner rod is inserted fully into central lumen of plunger rod body, the expandable flanges expands and engages with the piston seal assembly. Also when the inner plunger rod is retracted, the plunger body flanges retract back and disengages from piston seal assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.