G01R 33/285
Invasive instruments
Official title: {Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR}
G01R33/285 (Invasive instruments) appears on 678 US grants and 816 published applications in this corpus.
Search patents in G01R- Granted patents
- 678
- Published applications
- 816
- Assignees
- 279
- Inventors
- 1,278
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 15 | 4 |
| 2002 | 7 | 35 |
| 2003 | 10 | 27 |
| 2004 | 29 | 38 |
| 2005 | 20 | 55 |
| 2006 | 13 | 33 |
| 2007 | 10 | 27 |
| 2008 | 8 | 43 |
| 2009 | 18 | 27 |
| 2010 | 34 | 61 |
| 2011 | 20 | 29 |
| 2012 | 34 | 48 |
| 2013 | 39 | 33 |
| 2014 | 42 | 47 |
| 2015 | 37 | 55 |
| 2016 | 33 | 29 |
| 2017 | 27 | 38 |
| 2018 | 33 | 30 |
| 2019 | 27 | 31 |
| 2020 | 40 | 24 |
| 2021 | 18 | 25 |
| 2022 | 24 | 17 |
| 2023 | 14 | 24 |
| 2024 | 18 | 12 |
| 2025 | 20 | 19 |
| 2026 | 14 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic trajectory prediction and position identification6 Oct 2026US 12,752,083 B2Bard Access Systems, Inc.
- Device for anatomical sensing system-guided endorectal prostate biopsy15 Sep 2026US 12,733,987 B2Oregon Health & Science University
- Implantable array with a reference structure and a method of imaging the same15 Sep 2026US 12,736,599 B2Cortec Corporation
- Magnetic resonance (MR) compatible over-fiber multi-sensor system18 Aug 2026US 12,708,275 B2Bogazici Universitesi Doner Sermaye Isletme Mudurlugu
- Implantable ferromagnetic markers18 Aug 2026US 12,708,482 B2Endomagnetics Ltd
- Systems and methods for image guidance and device tracking during magnetic resonance imaging24 Sep 2026US 2026/0287691 A1Sunnybrook Research Institute
- Implantable ferromagnetic markers16 Jul 2026US 2026/0199052 A1Endomagnetics Ltd
- Catheter representation using a dynamic spring model19 Mar 2026US 2026/0076752 A1Biosense Webster (Israel) Ltd.
- Anatomical scanning, targeting, and visualization19 Feb 2026US 2026/0047892 A1Imirge Medical Inc.
- Omnidirectional mri catheter resonator and related systems, methods, and devices5 Feb 2026US 2026/0036655 A1The Regents of the University of California
Most cited
By later US patents
- Device for seeking an area of interest within a body1,661US 5,188,111 ACatheter Research, Inc. · 1993
- MR-compatible devices806US 7,048,716 B1Stanford University · 2006
- Device construction and method facilitating magnetic resonance imaging of foreign objects in a body594US 4,989,608 A1991
- Polymeric stent suitable for imaging by MRI and fluoroscopy489US 6,585,755 B2Advanced Cardiovascular, Inc. · 2003
- Tracking system to monitor the position and orientation of a device using multiplexed magnetic resonance detection462US 5,318,025 AGeneral Electric Company · 1994