Adjustable penetration depth syringe
US10688256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2018 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Mar 3, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/58
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe with adjustable penetration depth, comprising a tubular syringe barrel, a plunger positioned within the syringe barrel, a hub bearing a needle and attached to the syringe barrel, a movable collar having an open proximal end received over the hub, a distal end wall having an opening through which the needle protrudes, and a sidewall extending proximally from the distal end wall, the sidewall having an interior surface engaging the hub or syringe barrel, and a retaining feature on the collar engaging the hub or barrel and retaining the collar at a plurality of axial positions. The collar travels with respect to the hub along a path defined by the retaining feature on the interior surface of the sidewall engaging the hub or barrel, exposing a greater length of the needle as the collar travels toward the plunger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.