Patents
US 11585706 B2: Guidewire with fiber Bragg grating strain sensors
- Granted
- 2023-02-21
- Filed
- 2021-10-04 application 17492846
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A guidewire including an optical fiber containing three fiber cores, each supporting a strain-sensing fiber Bragg grating (FBG) is described. The three FBGs are susceptible to changes in strain so that axial and lateral force vectors imparted to the FBGs can be ascertained. An optical connector detachably connects the guidewire optic fiber to a proximal optical fiber. The proximal optical fiber in turn is connected to a controller, which in addition to ascertaining the axial and lateral force vectors imparted to each of the FBGs, is programmed to calculate the spatial orientation of the guidewire as it is advanced through the vasculature. This capability is extremely useful for positioning the guidewire at a body site of interest prior to performing a medical procedure. A temperature-sensing FBG is used to compensate for changes in the ambient temperature.
Source: PVGPATDIS, file of 2026-04-10 (ipg230221.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 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B17/22 | 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 | G02B6/441 | 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 |
|---|---|---|---|---|---|
| 2021-10-06 | Assignment Assignment of assignor's interest | HAYES, JOHN M signed 2021-10-04 | LAKE REGION MANUFACTURING, INC. CHASKA, MN | 57718/650 | 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.