Patents
US 9867926 B2: Dialysis catheter
- Granted
- 2018-01-16
- Filed
- 2015-06-27 application 14752912
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A dialysis catheter including a first portion having a first diameter, an elongated distal portion having a second smaller diameter, and a transition portion The first portion includes first and second independent blood withdrawal lumens extending in the first portion, the first withdrawal lumen terminating in the transition portion in a first terminal opening and the second withdrawal lumen terminating in a second terminal opening, the first and second terminal openings being radially spaced and axially adjacent. A longitudinally extending blood delivery lumen extends in the first portion and terminates in a delivery opening in the distal portion of the catheter, the first and second terminal openings positioned proximally of the delivery opening and each of the first and second terminal openings having a curved wall surrounding a portion of the terminal opening.
Source: PVGPATDIS, file of 2026-04-10 (ipg180116.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Argon Medical Devices, Inc. 20 patents | US company or organization | Plano, TX | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Stephan A. DeFonzo | Wayne, PA | 23 | PVGPATDIS, file of 2026-04-10 | |
| John D. Leedle | Philadelphia, PA | 43 | 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 | A61M1/3653 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T24/44744 | 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 |
|---|---|---|---|---|---|
| 2024-03-25 | Release of security interest Release of security interest | HSBC BANK USA, NATIONAL ASSOCIATION, AS COLLATERAL AGENT signed 2024-03-18 | ARGON MEDICAL DEVICES, INC. PLANO, TX MEDICAL DEVICE TECHNOLOGIES, INC. PLANO, TX MANAN MEDICAL PRODUCTS, INC. PLANO, TX | 66883/812 | PASDL, file of 2026-10-15 |
| 2023-11-17 | Security interest Security interest Security interest | ARGON MEDICAL DEVICES, INC. signed 2019-09-12 MEDICAL DEVICE TECHNOLOGIES, INC. signed 2019-09-12 MANAN MEDICAL PRODUCTS, INC. signed 2019-09-12 | HSBC BANK USA, NATIONAL ASSOCIATION, AS COLLATERAL AGENT DEPEW, NY | 65612/206 | 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 |
| 2019-09-13 | Release of security interest Termination and release of second lien security interest in patents | UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT signed 2019-09-12 | ARGON MEDICAL DEVICES, INC. LAKE FOREST, IL MANAN MEDICAL PRODUCTS, INC. LAKE FOREST, IL MEDICAL DEVICE TECHNOLOGIES, INC. LAKE FOREST, IL | 50375/620 | PASDL, file of 2026-10-15 |
| 2019-09-13 | Release of security interest Termination and release of first lien security interest in patents | UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT signed 2019-09-12 | ARGON MEDICAL DEVICES, INC. LAKE FOREST, IL MANAN MEDICAL PRODUCTS, INC. LAKE FOREST, IL MEDICAL DEVICE TECHNOLOGIES, INC. LAKE FOREST, IL | 50375/599 | PASDL, file of 2026-10-15 |
| 2018-05-10 | Security interest Security interest First lien patent security agreement | ARGON MEDICAL DEVICES, INC. signed 2018-01-23 MEDICAL DEVICE TECHNOLOGIES, INC. signed 2018-01-23 MANAN MEDICAL PRODUCTS, INC. signed 2018-01-23 | UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT STAMFORD, CT | 46127/748 | PASDL, file of 2026-10-15 |
| 2018-05-10 | Security interest Security interest Second lien patent security agreement | ARGON MEDICAL DEVICES, INC. signed 2018-01-23 MEDICAL DEVICE TECHNOLOGIES, INC. signed 2018-01-23 MANAN MEDICAL PRODUCTS, INC. signed 2018-01-23 | UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT STAMFORD, CT | 46127/602 | PASDL, file of 2026-10-15 |
| 2018-01-23 | Release of security interest Release of second lien patent security agreements recorded at reel/frame 037827/0460, 037827/0526, 037827/0764, and 037827/0882 | HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT signed 2018-01-23 | ARGON MEDICAL DEVICES, INC. LAKE FOREST, IL MANAN MEDICAL PRODUCTS, INC. LAKE FOREST, IL MEDICAL DEVICE TECHNOLOGIES, INC. LAKE FOREST, IL PROMEX TECHNOLOGIES, LLC LAKE FOREST, IL LUTHER MEDICAL PRODUCTS, INC. LAKE FOREST, IL | 45130/906 | PASDL, file of 2026-10-15 |
| 2018-01-23 | Release of security interest Release of first lien patent security agreements recorded at reel/frame 037703/0001, 037702/0592, 037702/0580, and 037702/0497 | HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT signed 2018-01-23 | ARGON MEDICAL DEVICES, INC. LAKE FOREST, IL MANAN MEDICAL PRODUCTS, INC. LAKE FOREST, IL MEDICAL DEVICE TECHNOLOGIES, INC. LAKE FOREST, IL PROMEX TECHNOLOGIES, LLC LAKE FOREST, IL LUTHER MEDICAL PRODUCTS, INC. LAKE FOREST, IL | 45130/706 | PASDL, file of 2026-10-15 |
| 2018-01-23 | Release of security interest Release of first lien patent security agreements recorded at reel/frame 037703/0001, 037702/0592, 037702/0580, and 037702/0497 | HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT signed 2018-01-23 | ARGON MEDICAL DEVICES, INC. LAKE FOREST, IL MANAN MEDICAL PRODUCTS, INC. LAKE FOREST, IL MEDICAL DEVICE TECHNOLOGIES, INC. LAKE FOREST, IL PROMEX TECHNOLOGIES, LLC LAKE FOREST, IL | 45130/525 | PASDL, file of 2026-10-15 |
| 2016-02-16 | Security interest Security interest Second lien patent security agreement | ARGON MEDICAL DEVICES, INC. signed 2015-12-23 | HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT BETHESDA, MD | 37827/460 | PASDL, file of 2026-10-15 |
| 2016-02-05 | Security interest Security interest First lien patent security agreement | ARGON MEDICAL DEVICES, INC. signed 2015-12-23 | HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS ADMINISTRATIVE AGENT BETHESDA, MD | 37703/1 | PASDL, file of 2026-10-15 |
| 2016-01-11 | Assignment Assignment of assignor's interest | REX MEDICAL, L.P. signed 2015-12-23 | ARGON MEDICAL DEVICES, INC. PLANO, TX | 37472/151 | PASDL, file of 2026-10-15 |
| 2016-01-11 | Assignment Assignment of assignor's interest | DEFONZO, STEPHAN A signed 2008-05-21 LEEDLE, JOHN D signed 2008-05-21 | REX MEDICAL, L.P. CONSHOHOCKEN, PA | 37456/81 | 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.