Patents
US 11291376 B2: Fiber bragg grating multi-point pressure sensing guidewire with birefringent component
- Granted
- 2022-04-05
- Filed
- 2019-11-21 application 16690170
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system and method are presented for detecting and measuring pressure within a region of a body lumen or vessel. The pressure sensing system includes a light source for transmitting light through a pathway containing polarization-maintaining fiber optic wires. A distal portion of the polarization-maintaining fiber optic wire, which is engaged to and extends along a guidewire, includes pressure sensing station(s) made up of fiber Bragg gratings (FBG). The light transmitted to and reflected from the FBGs on the two polarization modes of the polarization-maintaining fiber optic wire can be analyzed to provide one or more pressure values.
Source: PVGPATDIS, file of 2026-04-10 (ipg220405.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Lake Region Manufacturing, Inc. 30 patents | US company or organization | Chaska, MN | LAKE REGION MANUFACTURING, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| John Michael Hayes | Cork, IE | 14 | PVGPATDIS, file of 2026-04-10 | |
| Matheus Maria van Leest | Alkmaar, NL | 2 | PVGPATDIS, file of 2026-04-10 | |
| Michael Benjamin Haverdings | Velserbroek, NL | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B5/02154 | PVGPATDIS, file of 2026-04-10 |
| G01L | Measuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure | G01L1/246 | PVGPATDIS, file of 2026-04-10 |
| G02B | Optical elements, systems or apparatus | G02B6/3846 | 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 |
|---|---|---|---|---|---|
| 2021-09-10 | Security interest Security interest Security interest | GREATBATCH LTD. signed 2021-09-02 ELECTROCHEM SOLUTIONS, INC. signed 2021-09-02 LAKE REGION MEDICAL, INC. signed 2021-09-02 LAKE REGION MANUFACTURING, INC. signed 2021-09-02 | WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT ROANOKE, VA | 57468/56 | PASDL, file of 2026-10-15 |
| 2020-11-18 | Assignment Assignment of assignor's interest | LAKE REGION MEDICAL, INC. signed 2020-11-17 | LAKE REGION MANUFACTURING, INC., DBA LAKE REGION MEDICAL CHASKA, MN | 54400/387 | ECORSEXC, file of 2026-09-25 |
| 2019-12-02 | Assignment Assignment of assignor's interest | HAYES, JOHN MICHAEL signed 2016-02-23 HAVERDINGS, MICHAEL BENJAMIN signed 2016-03-17 VAN LEEST, MATHEUS MARIA signed 2016-03-17 | LAKE REGION MEDICAL, INC. CHASKA, MN | 51151/943 | 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.