Patents
US 12446918 B2: Pressure release cannula
- Granted
- 2025-10-21
- Filed
- 2019-06-25 application 17255173
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A pressure relief device for controlling the outflow of fluid from a surgical site. The pressure relief device includes a cannula body having a proximal end and a distal end with a thread extending along the entire cannula body from the distal end. The device also has a proximal end cap connected to the proximal end of the cannula body, a spacer connected between the cannula body and the proximal end cap, and a proximal seal enclosed between the proximal end cap and the spacer. One or more distal seals can be enclosed between the spacer and the proximal end of the cannula body. The device additionally includes a channel between the spacer and an inner wall of the proximal end cap. Fluid flows out of the device through the channel.
Source: PVGPATDIS, file of 2026-04-10 (ipg251021.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Conmed Corporation 303 patents | US company or organization | Utica, NY | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Isshiki Ryo | Largo, FL | 1 | PVGPATDIS, file of 2026-04-10 | |
| Alan Hernandez | Gulf Pine, FL | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B17/3421 | 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 |
|---|---|---|---|---|---|
| 2025-07-21 | Security interest Security interest Security interest | CONMED CORPORATION signed 2025-06-10 BIOREZ, INC. signed 2025-06-10 BUFFALO FILTER LLC signed 2025-06-10 IN2BONES USA, LLC signed 2025-06-10 LINVATEC CORPORATION signed 2025-06-10 SURGIQUEST, INC. signed 2025-06-10 VIKING SYSTEMS, INC. signed 2025-06-10 | JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT CHICAGO, IL | 72097/762 | PASDL, file of 2026-10-15 |
| 2020-12-22 | Assignment Assignment of assignor's interest | HERNANDEZ, ALAN signed 2019-08-06 ISSHIKI, RYO signed 2019-08-06 | CONMED CORPORATION UTICA, NY | 54728/130 | 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.