US7286868B2
Expired / Lapsed
US
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Medical device with position sensor having accuracy at high temperatures
Assignee: Biosense Webster Inc
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Filing: 2001-06-15
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Granted: 2007-10-23
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Expires: 2021-06-15
Abstract
Abstract A medical device and position sensor combination for use in medical applications comprises a position sensor having a core made of a high permeable material The core material is made of a Wiegand effect material comprising a mixture of cobalt, vanadium, and iron. The position sensor has an outer diameter of approximately 0.4 mm and is used in a medical device having an outer diameter of approximately 0.67 mm.
Inventors
- 👤 Assaf Govari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:11
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/06; A61B5/065; G; G01; G01B; G01B7/00; G01B7/003; G01B7/004; G01B7/30; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/2006; G01V; G01V3/00; G01V3/08; G01V3/081; A61B2560/00; A61B2560/02; A61B2560/0242; A61B2560/0247; A61B2560/0252
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
76 words
A medical device and position sensor combination comprising: (a) a medical device having a body; (b) a position sensor attached to the body, the position sensor having a core made of a Wiegand effect material, and a winding circumferentially positioned around the core, the position sensor being used for determining position coordinates of the portion of the body of the medical device, the position senor maintaining accuracy of ≦1 mm at temperatures greater than 75° C.
Claim 2
Dependent Claim
76 words
A medical device and position sensor combination comprising: (a) a medical device having a body; (b) a position sensor attached to the body, the position sensor having a core made of a Wiegand effect material, and a winding circumferentially positioned around the core, the position sensor being used for determining position coordinates of the portion of the body of the medical device, the position senor maintaining accuracy of ≦1 mm at temperatures greater than 75° C.
Claim 3
Dependent Claim
15 words
The combination according to claim 1 , wherein the winding is attached to the core.
Claim 4
Dependent Claim
28 words
The combination according to claim 1 , wherein the position sensor is also used to determine orientation coordinates of the portion of the body of the medical device.
Claim 5
Dependent Claim
18 words
The combination according to claim 3 , wherein the position sensor has an accuracy within approximately 0.5 mm.
Claim 6
Dependent Claim
22 words
The combination according to claim 1 , wherein the position sensor maintains accuracy of ≦1 mm at temperatures at approximately 80° C.
Claim 7
Dependent Claim
19 words
The combination according to claim 1 , wherein the core has an outer diameter less than approximately 0.3 mm.
Claim 8
Dependent Claim
18 words
The combination according to claim 6 , wherein the core has an outer diameter of about 0.25 mm.
Claim 9
Dependent Claim
15 words
The combination according to claim 7 , wherein the winding is attached to the core.
Claim 10
Dependent Claim
25 words
The combination according to claim 8 , wherein a combination of the core and the winding has an outer diameter less than approximately 0.5 mm.
Claim 11
Dependent Claim
24 words
The combination according to claim 9 , wherein the combination of the core and the winding have an outer diameter of about 0.4 mm.
Claim 12
Dependent Claim
15 words
The combination according to claim 10 , wherein the material of the core comprises cobalt.
Claim 13
Dependent Claim
16 words
The combination according to claim 11 , wherein the material of the core further comprises vanadium.
Claim 14
Dependent Claim
16 words
The combination according to claim 12 , wherein the material of the core further comprises iron.
Claim 15
Dependent Claim
17 words
The combination according to claim 13 , wherein the material of the core comprises approximately 20%-80% cobalt.
Claim 16
Dependent Claim
17 words
The combination according to claim 13 , wherein the material of the core comprises approximately 2%-20% vanadium.
Claim 17
Dependent Claim
17 words
The combination according to claim 13 , wherein the material of the core comprises approximately 25%-50% iron.
Claim 18
Dependent Claim
22 words
The combination according to claim 13 , wherein the material of the core comprises approximately 52% cobalt, 10% vanadium and 38% iron.
Claim 19
Dependent Claim
14 words
The combination according to claim 8 , wherein the winding is made of copper.
Claim 20
Dependent Claim
96 words
A medical device and position sensor combination comprising: (a) a medical device having a body; (b) a position sensor attached to the body, the position sensor having a core made of a high permeable material, the material being a magnetic material that produces a magnetic field that switches polarity and causes a substantially uniform voltage pulse upon an application of an external field, the position sensor being used for determining postion coordinates of the portion of the body of the medical device, the position sensor maintaining accuracy at ≦1 mm at temperatures greater than 75° C.
Claim 21
Dependent Claim
96 words
A medical device and position sensor combination comprising: (a) a medical device having a body; (b) a position sensor attached to the body, the position sensor having a core made of a high permeable material, the material being a magnetic material that produces a magnetic field that switches polarity and causes a substantially uniform voltage pulse upon an application of an external field, the position sensor being used for determining postion coordinates of the portion of the body of the medical device, the position sensor maintaining accuracy at ≦1 mm at temperatures greater than 75° C.
Claim 22
Dependent Claim
19 words
The combination according to claim 19 , wherein the position sensor further includes a winding positioned around the core.
Claim 23
Dependent Claim
19 words
The combination according to claim 20 , wherein the position sensor further includes a winding positioned around the core.
Claim 24
Dependent Claim
28 words
The combination according to claim 19 , wherein the position sensor is also used to determine orientation coordinates of the portion of the body of the medical device.
Claim 25
Dependent Claim
18 words
The combination according to claim 22 , wherein the position sensor has an accuracy within approximately 0.5 mm.
Claim 26
Dependent Claim
22 words
The combination according to claim 19 , wherein the position sensor maintains accuracy at ≦1 mm at temperatures at approximately 80° C.
Claim 27
Dependent Claim
19 words
The combination according to claim 19 , wherein the core has an outer diameter less than approximately 0.3 mm.
Claim 28
Dependent Claim
18 words
The combination according to claim 25 , wherein the core has an outer diameter of about 0.25 mm.
Claim 29
Dependent Claim
14 words
The combination according to claim 26 , wherein the winding is made of wire.
Claim 30
Dependent Claim
25 words
The combination according to claim 27 , wherein a combination of the core and the winding has an outer diameter less than approximately 0.5 mm.
Claim 31
Dependent Claim
24 words
The combination according to claim 28 , wherein the combination of the core and the winding have an outer diameter of about 0.4 mm.
Claim 32
Dependent Claim
15 words
The combination according to claim 29 , wherein the material of the core comprises cobalt.
Claim 33
Dependent Claim
16 words
The combination according to claim 30 , wherein the material of the core further comprises vanadium.
Claim 34
Dependent Claim
16 words
The combination according to claim 31 , wherein the material of the core further comprises iron.
Claim 35
Dependent Claim
17 words
The combination according to claim 32 , wherein the material of the core comprises approximately 20%-80% cobalt.
Claim 36
Dependent Claim
17 words
The combination according to claim 32 , wherein the material of the core comprises approximately 2%-20% vanadium.
Claim 37
Dependent Claim
17 words
The combination according to claim 32 , wherein the material of the core comprises approximately 25%-50% iron.
Claim 38
Dependent Claim
22 words
The combination according to claim 32 , wherein the material of the core comprises approximately 52% cobalt, 10% vanadium and 38% iron.
Claim 39
Dependent Claim
15 words
The combination according to claim 27 , wherein the wire winding is made of copper.
Claim 40
Dependent Claim
20 words
The combination according to claim 19 wherein the material of the core comprises a copper, nickel and iron alloy (CuNiFe).
Claim 41
Dependent Claim
20 words
The combination according to claim 19 , wherein the material of the core comprises an iron, chrome and cobalt alloy.
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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) | 2010-10-22 | 2011-04-23 | 2011-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-10-22 | 2015-04-23 | 2015-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-10-22 | 2019-04-23 | 2019-10-23 | $7700.00 | Window Closed / Lapsed |