Patents
US 8568367 B2: Needle assemblies for wet/dry automatic injectors
- Granted
- 2013-10-29
- Filed
- 2007-01-26 application 11698937
- Type
- Utility · 7 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An automatic medicament injector having a compartment for a dry medicament component and a compartment for a wet medicament component. The two compartments are separated by a seal structure that converts from a sealing condition to a mixing condition when the device is activated. The seal structure includes a wiper that scrapes the interior walls in the dry component compartment to prevent the dry component from accumulating at the seal/glass interface. A tapered insert funnels the mixed medicament components to an attached needle assembly, but can be removed when the device is filled. A filter is provided between the medicament compartments and the needle assembly. A chamber between the filter and the needle allows for better flow through the filter. An actuation assembly drives the seal structure into the mixing condition and forces the mixed medicament through the needle and into the user.
Source: PVGPATDIS, file of 2026-04-10 (ipg131029.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Meridian Medical Technologies, Inc. 17 patents | US company or organization | Columbia, MD | MERIDIAN MEDICAL TECHNOLOGIES, INC. State business registration EXACT high confidence: identical full name and state MERIDIAN MEDICAL TECHNOLOGIES Federal lobbying client FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Steven Griffiths | Ellicott City, MD | 13 | PVGPATDIS, file of 2026-04-10 | |
| Robert L. Hill | Edgewood, MD | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61M | Devices for introducing media into, or onto, the body ; devices for transducing body media or for taking media from the body ; devices for producing or ending sleep or stupor | A61M5/31596 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-12-14 | Security interest Security interest Security interest | MERIDIAN MEDICAL TECHNOLOGIES, LLC signed 2022-12-12 | JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT CHICAGO, IL | 62089/698 | ECORSEXC, file of 2026-09-25 |
| 2022-04-19 | Correction Entity conversion | MERIDIAN MEDICAL TECHNOLOGIES, INC. signed 2021-12-31 | MERIDIAN MEDICAL TECHNOLOGIES, LLC COLUMBIA, MD | 59727/945 | ECORSEXC, file of 2026-09-25 |
| 2011-02-03 | Release of security interest Release of security interest | CREDIT SUISSE AG signed 2011-01-31 | MERIDIAN MEDICAL TECHNOLOGIES, INC. COLUMBIA, MD | 25741/482 | PASDL, file of 2026-10-15 |
| 2010-05-13 | Security interest Security interest Security agreement | MERIDIAN MEDICAL TECHNOLOGIES, INC. signed 2010-05-11 | CREDIT SUISSE AG NEW YORK, NY | 24379/816 | PASDL, file of 2026-10-15 |
| 2010-05-11 | Release of security interest Release of security interest | MERIDIAN MEDICAL TECHNOLOGIES, INC. signed 2010-05-11 | CREDIT SUISSE AG NEW YORK, NY | 24369/32 | ECORSEXC, file of 2026-09-25 |
| 2009-11-18 | Assignment Assignment of assignor's interest | GRIFFITHS, STEVEN M. signed 2004-02-20 HILL, ROBERT L. signed 2004-02-20 | MERIDIAN MEDICAL TECHNOLOGIES, INC. COLUMBIA, MD | 23534/80 | ECORSEXC, file of 2026-09-25 |
| 2008-12-30 | Security interest Security interest Security agreement | MERIDIAN MEDICAL TECHNOLOGIES, INC. signed 2008-12-29 | CREDIT SUISSE, AS AGENT NEW YORK, NY | 22034/922 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.