Patent US2397967A successfully refreshed from Google Patents.
Patent US7301332B2 successfully refreshed from Google Patents.
US7301332B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic sensor assembly
Assignee: Biosense Webster Inc
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Filing: 2005-10-06
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Granted: 2007-11-27
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Expires: 2025-10-06
Abstract
Abstract A sensor assembly includes a first magneto-resistive field sensor in a first surface-mountable package, which measures first and second components of a magnetic field projected onto respective different first and second axes with respect to a spatial orientation of the sensor and to produce first position signals indicative of the measured first and second components. A second magneto-resistive field sensor in a second surface-mountable package measures at least a third component of the magnetic field projected onto at least a third axis with respect to the spatial orientation of the sensor, and to produce second position signals indicative of the measured third component. A substrate assembly orients the first field sensor in a first spatial orientation and to orient the second field sensor in a second spatial orientation so that the third axis is oriented out of a plane containing the first and second axes.
Inventors
- 👤 Assaf Govari
- 👤 Andres Claudio Altmann
- 👤 Yaron Ephrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:53
CPC Classifications
A; A61; A61B; A61B1/00; A61B5/00; A61B5/06; A61B5/061; A61B5/062; A61B5/065; A61B90/00; A61B90/39; G; G01; G01R; G01R33/00; G01R33/02; G01R33/0206; G01R33/06; G01R33/09; A61B2090/3954; A61B2562/00; A61B2562/02; A61B2562/04; A61B2562/043
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
203 words
A medical magnetic position tracking system, comprising: a probe for insertion into a patient; a first magneto-resistive field sensor in a first surface-mountable package, which is arranged to measure first and second components of a magnetic field projected onto respective different first and second axes with respect to a spatial orientation of the first field sensor and to produce first position signals indicative of the measured first and second components; a second magneto-resistive field sensor in a second surface-mountable package, which is arranged to measure at least a third component of the magnetic field projected onto at least a third axis with respect to the spatial orientation of the second field sensor, and to produce second position signals indicative of the measured third component; and a substrate assembly having the first and second field sensors surface-mounted thereon, which is coupled to orient the first field sensor in a first spatial orientation and to orient the second field sensor in a second spatial orientation so that the third axis is oriented out of a plane containing the first and second axes; and a processing unit for receiving the first position signals and the second position signals and calculating six-dimensional coordinate information of the probe.
Claim 2
Dependent Claim
203 words
A medical magnetic position tracking system, comprising: a probe for insertion into a patient; a first magneto-resistive field sensor in a first surface-mountable package, which is arranged to measure first and second components of a magnetic field projected onto respective different first and second axes with respect to a spatial orientation of the first field sensor and to produce first position signals indicative of the measured first and second components; a second magneto-resistive field sensor in a second surface-mountable package, which is arranged to measure at least a third component of the magnetic field projected onto at least a third axis with respect to the spatial orientation of the second field sensor, and to produce second position signals indicative of the measured third component; and a substrate assembly having the first and second field sensors surface-mounted thereon, which is coupled to orient the first field sensor in a first spatial orientation and to orient the second field sensor in a second spatial orientation so that the third axis is oriented out of a plane containing the first and second axes; and a processing unit for receiving the first position signals and the second position signals and calculating six-dimensional coordinate information of the probe.
Claim 3
Dependent Claim
31 words
The medical magnetic position tracking system according to claim 1 , wherein the substrate assembly comprises a flexible substrate material bent so as to orient the first and second field sensors.
Claim 4
Dependent Claim
29 words
The medical magnetic position tracking system according to claim 2 , wherein the flexible substrate material comprises one or more slots so as to enable bending the substrate assembly.
Claim 5
Dependent Claim
34 words
The medical magnetic position tracking system according to claim 1 , wherein the substrate assembly comprises two or more sections interlocked into one another so as to orient the first and second field sensors.
Claim 6
Dependent Claim
32 words
The medical magnetic position tracking system according to claim 4 , wherein the two or more sections comprise at least one slot so as to enable interlocking the sections into one another.
Claim 7
Dependent Claim
22 words
The medical magnetic position tracking system according to claim 1 , wherein the substrate assembly comprises a printed circuit board (PCB) material.
Claim 8
Dependent Claim
37 words
The medical magnetic position tracking system according to claim 6 , and comprising electrical conductors disposed on the PCB material so as to provide electrical interconnection for at least one of the first and second field sensors.
Claim 9
Dependent Claim
26 words
The medical magnetic position tracking system according to claim 1 , wherein the sensor assembly has a size smaller than 2 by 2 by 4 mm.
Claim 10
Dependent Claim
260 words
Medical position sensing apparatus, comprising: one or more field generators, which are arranged to generate a magnetic field; a probe for insertion into a patient, the probe comprising sensor assembly, comprising: a first magneto-resistive field sensor in a first surface-mountable package, which is arranged to measure first and second components of the magnetic field projected onto respective different first and second axes with respect to a spatial orientation of the first field sensor and to produce first position signals indicative of the measured first and second components; a second magneto-resistive field sensor in a second surface-mountable package, which is arranged to measure at least a third component of the magnetic field projected onto at least a third axis with respect to the spatial orientation of the second field sensor, and to produce second position signals indicative of the measured third component; and a substrate assembly having the first and second field sensors surface-mounted thereon, which is coupled to orient the first field sensor in a first spatial orientation and to orient the second field sensor in a second spatial orientation, so that the third axis is oriented out of a plane containing the first and second axes; and a control module, which is arranged to receive and send the first and second position signals and a processing unit for receiving the first and second position signals and to calculate a spatial position of the sensor assembly with respect to the one or more field generators responsively to the position signals by calculating up to six-dimensional coordinate information of the probe.
Claim 11
Dependent Claim
260 words
Medical position sensing apparatus, comprising: one or more field generators, which are arranged to generate a magnetic field; a probe for insertion into a patient, the probe comprising sensor assembly, comprising: a first magneto-resistive field sensor in a first surface-mountable package, which is arranged to measure first and second components of the magnetic field projected onto respective different first and second axes with respect to a spatial orientation of the first field sensor and to produce first position signals indicative of the measured first and second components; a second magneto-resistive field sensor in a second surface-mountable package, which is arranged to measure at least a third component of the magnetic field projected onto at least a third axis with respect to the spatial orientation of the second field sensor, and to produce second position signals indicative of the measured third component; and a substrate assembly having the first and second field sensors surface-mounted thereon, which is coupled to orient the first field sensor in a first spatial orientation and to orient the second field sensor in a second spatial orientation, so that the third axis is oriented out of a plane containing the first and second axes; and a control module, which is arranged to receive and send the first and second position signals and a processing unit for receiving the first and second position signals and to calculate a spatial position of the sensor assembly with respect to the one or more field generators responsively to the position signals by calculating up to six-dimensional coordinate information of the probe.
Claim 12
Dependent Claim
18 words
The apparatus according to claim 9 , wherein the magnetic field comprises a direct current (DC) magnetic field.
Claim 13
Dependent Claim
27 words
The apparatus according to claim 9 , wherein the substrate assembly comprises a flexible substrate material bent so as to orient the first and second field sensors.
Claim 14
Dependent Claim
30 words
The apparatus according to claim 9 , wherein the substrate assembly comprises two or more sections interlocked into one another so as to orient the first and second field sensors.
Claim 15
Dependent Claim
18 words
The apparatus according to claim 9 , wherein the substrate assembly comprises a printed circuit board (PCB) material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-11-26 | 2011-05-28 | 2011-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-11-26 | 2015-05-28 | 2015-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-11-26 | 2019-05-28 | 2019-11-27 | $7700.00 | Window Closed / Lapsed |