Insulin pen needle with needle tip protection
US11020535B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2016 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jul 4, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An insulin injection needle with needle tip protection has a needle body, needle base, main cover and outer sheath. The main cover is provided with the trigger tube, front casing and spring. The trigger tube is used to protect the injection section of needle body before use and the front casing is used to protect the injection section of needle body after use. Before use, the trigger tube extends out of the main cover and is in the state of protecting the needle, and the front casing is in the main cover; after, the trigger tube is in the main cover and the front casing extends out of the main cover and protects the needle. The unlocking of trigger tube and front casing correlate with injection readiness and the tail cover and needle base trigger the unlocking of trigger tube and front casing during the installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.