Soft tip cannula with retractable tip protector
US11701254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2020 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Nov 21, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0612
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes an injector cannula having a soft injector tip. A retractable tip protector tube is slidably disposed on the flow cannula between an extended position in which the tip protector tube covers the entire injector tip, and a retracted position in which the tip protector tube is retracted proximally thereby exposing at least part of the injector tip. Accordingly, the tip protector tube protects the injector tip from being damaged while advancing the injector tip to a target injection site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.