Patents
US 12419620 B2: Core-severing cannula for biopsy devices
- Granted
- 2025-09-23
- Filed
- 2020-08-10 application 16989665
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A core-severing cannula for use with tissue biopsy devices, comprising a plurality of flexible fingers for severing a tissue core. The core-severing cannula is positioned coaxially outside of a core-cutting cannula, and is slidable relative to the core-cutting cannula. As the device is activated, the core cutting cannula and core-severing cannula advance together to cut a core of tissue. Subsequently, the core-severing cannula is advanced relative to the core cutting cannula, and the fingers of the core-severing cannula assume a closed position to sever the core from the target site.
Source: PVGPATDIS, file of 2026-04-10 (ipg250923.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Argon Medical Devices, Inc. 20 patents | US company or organization | Athens, TX | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Matthew Mobley | Athens, TX | 4 | PVGPATDIS, file of 2026-04-10 | |
| Venkata Ramana Hogirala | Athens, TX | 2 | PVGPATDIS, file of 2026-04-10 | |
| Joe Cotten | Athens, TX | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B10/0275 | PVGPATDIS, file of 2026-04-10 |
| B29C | Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairing | B29C67/24 | 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 |
|---|---|---|---|---|---|
| 2024-03-18 | Security interest Security interest Security interest | ARGON MEDICAL DEVICES, INC. signed 2024-03-18 MEDICAL DEVICE TECHNOLOGIES, INC. signed 2024-03-18 MANAN MEDICAL PRODUCTS, INC. signed 2024-03-18 | HSBC BANK USA, NATIONAL ASSOCIATION, AS COLLATERAL AGENT DEPEW, NY | 66816/20 | PASDL, file of 2026-10-15 |
| 2023-01-19 | Assignment Change of owner/assignee address | ARGON MEDICAL DEVICES, INC. signed 2023-01-19 | ARGON MEDICAL DEVICES, INC. PLANO, TX | 62437/600 | PASDL, file of 2026-10-15 |
| 2021-05-05 | Assignment Assignment of assignor's interest | COTTEN, JOE signed 2019-08-15 MOBLEY, MATTHEW signed 2019-08-15 HOGIRALA, VENKATA RAMANA signed 2019-08-22 | ARGON MEDICAL DEVICES, INC. ATHENS, TX | 56144/353 | 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.