US6751492B2
Expired / Lapsed
US
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System for mapping a heart using catheters having ultrasonic position sensors
Assignee: Biosense Webster Inc
•
Filing: 2001-02-14
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Granted: 2004-06-15
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Expires: 2021-02-14
Abstract
Abstract A system for mapping a heart comprises a mapping catheter having an ultrasonic position sensor for insertion into the heart. The system also comprises at least one reference catheter having an ultrasonic position sensor placeable in a fixed position relative to the heart. The position of the mapping catheter is determined relative to the at least one reference catheter. The ultrasonic position sensor of the mapping catheter is located at the tip of the mapping catheter. The ultrasonic position sensor for the at least one reference catheter is located at the tip of the at least one reference catheter.
Inventors
- 👤 Shlomo Ben-Haim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:32
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6801; A61B5/6843; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B18/18; A61B18/20; A61B34/00; A61B34/20; A61B5/02; A61B5/021; A61B5/0215; A61B5/026; A61B5/029; A61B5/06; A61B5/065; A61B5/066; A61B5/068; A61B5/145; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/287; A61B5/6846; A61B5/6847; A61B5/6852; A61B5/6859; A61B5/6885; A61B8/00; A61B8/08; A61B8/0833; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61N1/18; A61N1/32; A61N1/36; A61N1/362; A61N1/3627; A61N1/365; A61N1/36514; A61N1/36564; A61N1/40; A61N1/403; A61B18/02; A61B18/22; A61B18/24; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B2018/00636; A61B2018/00773; A61B2018/00869; A61B34/10; A61B2034/101; A61B2034/105; A61B2034/2046; A61B2034/2051; A61B90/00; A61B90/39; A61B2090/3954; A61B2090/3958; A61B5/316; A61B5/318; A61B5/346; A61B5/349; A61B5/352; A61M2025/0166; A61N1/3621; A61N1/368; Y; Y10; Y10S; Y10S128/00; Y10S128/92; Y10S128/922
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
196 words
A system for mapping a heart, the system comprising: a mapping catheter having a tip and a first ultrasonic position sensor for insertion into the heart; and at least one reference catheter having a second ultrasonic position sensor placeable in a fixed position relative to the heart; an imaging apparatus for acquiring images of the heart for construction of a perspective image thereof; an ultrasound transmitter for actuating the first ultrasonic position sensor and the second ultrasonic position sensor; and a location processor for iteratively processing sensed information from the first ultrasonic position sensor and the second ultrasonic position sensor to create a plurality of geometric snapshots of the heart, each of the geometric snapshots comprising one or more data points, the geometric snapshots being superimposed on the perspective image of the heart; wherein a position of the mapping catheter is determined relative to the at least one reference catheter and the plurality of geometric snapshots of the heart are made based on a position of the tip of the mapping catheter on a surface of the heart at a point in time of a cardiac cycle, the plurality of the geometric snapshots defining a map.
Claim 2
Independent Claim
196 words
A system for mapping a heart, the system comprising: a mapping catheter having a tip and a first ultrasonic position sensor for insertion into the heart; and at least one reference catheter having a second ultrasonic position sensor placeable in a fixed position relative to the heart; an imaging apparatus for acquiring images of the heart for construction of a perspective image thereof; an ultrasound transmitter for actuating the first ultrasonic position sensor and the second ultrasonic position sensor; and a location processor for iteratively processing sensed information from the first ultrasonic position sensor and the second ultrasonic position sensor to create a plurality of geometric snapshots of the heart, each of the geometric snapshots comprising one or more data points, the geometric snapshots being superimposed on the perspective image of the heart; wherein a position of the mapping catheter is determined relative to the at least one reference catheter and the plurality of geometric snapshots of the heart are made based on a position of the tip of the mapping catheter on a surface of the heart at a point in time of a cardiac cycle, the plurality of the geometric snapshots defining a map.
Claim 3
Dependent Claim
26 words
The system according to claim 1 , wherein the first ultrasonic position sensor of the mapping catheter is located at the tip of the mapping catheter.
Claim 4
Dependent Claim
32 words
The system according to claim 2 , wherein the second ultrasonic position sensor of the at least one reference catheter is located at the tip of the at least one reference catheter.
Claim 5
Dependent Claim
19 words
The system according to claim 3 , wherein the at least one reference catheter is insertable into the heart.
Claim 6
Dependent Claim
20 words
The system according to claim 4 , wherein the at least one reference catheter is placeable outside of the heart.
Claim 7
Dependent Claim
15 words
The system according to claim 1 , wherein the mapping catheter comprises a multi-head catheter.
Claim 8
Dependent Claim
17 words
The system according to claim 1 , wherein the mapping catheter includes at least one electrode thereon.
Claim 9
Dependent Claim
19 words
The system according to claim 7 , wherein the map includes electrical activity of the surface of the heart.
Claim 10
Dependent Claim
19 words
The system according to claim 7 , wherein the map includes impedance measured of the surface of the heart.
Claim 11
Dependent Claim
19 words
The system according to claim 1 , wherein the map includes mechanical information of the surface of the heart.
Claim 12
Dependent Claim
19 words
The system according to claim 10 , wherein the mechanical information includes movement of the surface of the heart.
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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) | 2007-06-15 | 2007-12-15 | 2008-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-06-15 | 2011-12-15 | 2012-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-06-15 | 2015-12-15 | 2016-06-15 | $7700.00 | Window Closed / Lapsed |