CA2437680A1 - Catheter and method for mapping purkinje fibers - Google Patents

Catheter and method for mapping purkinje fibers Download PDF

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Publication number
CA2437680A1
CA2437680A1 CA002437680A CA2437680A CA2437680A1 CA 2437680 A1 CA2437680 A1 CA 2437680A1 CA 002437680 A CA002437680 A CA 002437680A CA 2437680 A CA2437680 A CA 2437680A CA 2437680 A1 CA2437680 A1 CA 2437680A1
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CA
Canada
Prior art keywords
spine
catheter
distal end
catheter body
electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002437680A
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French (fr)
Other versions
CA2437680C (en
Inventor
Kristine B. Fuimaono
Bart-Jan Korteling
Michel Haissaguerre
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Biosense Webster Inc
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Biosense Webster Inc
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Filing date
Publication date
Application filed by Biosense Webster Inc filed Critical Biosense Webster Inc
Publication of CA2437680A1 publication Critical patent/CA2437680A1/en
Application granted granted Critical
Publication of CA2437680C publication Critical patent/CA2437680C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A61B5/6859—Catheters with multiple distal splines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/283—Invasive
    • A61B5/287—Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/061—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
    • A61B5/062—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body using magnetic field

Abstract

An improved catheter is provided that is particularly useful for mapping the Purkinje fibers for potential diagnosis of ventricular fibrillation. The catheter comprises an elongated catheter body having proximal and distal ends and at least one lumen extending longitudinally therethrough. Mounted at the distal end of the catheter body is a mapping assembly having at least two spines, each having a proximal end attached at the distal end of the catheter body and a free distal end. Each spine comprises at least one electrode, preferably a tip electrode and at least one ring electrode. An irrigation tube extends through the catheter body and has an open distal end that is in communication with the outside of the distal end of the catheter body. The spines may be arranged in an expanded arrangement wherein each spine extends radially outwardly from the catheter body or in a collapsed arrangement wherein each spine is disposed generally along the longitudinal axis of the catheter body.
In use, at least one electrode from each spine is positioned in contact with heart tissue to map the electrical activity of the heart. The location sensors are used to determine the location of each point where the electrical activity is monitored.

Claims (28)

1. A catheter comprising:
an elongated catheter body having a proximal end, a distal end and at least one lumen extending longitudinally therethrough;
a mapping assembly mounted at the distal end of the catheter body and comprising at least two spines, each spine having a proximal end attached at the distal end of the catheter body and a free distal end, wherein each spine comprises at least one electrode; and an irrigation tube extending through the catheter body and having an open distal end that is in communication with the outside of the distal end of the catheter body.
2. The catheter of claim 1, wherein each spine comprises a tip electrode mounted at or near the distal end of the spine.
3. The catheter of claim 1, wherein each spine further comprises at least one location sensor.
4. The catheter of claim 3, wherein the location sensor is mounted at least partially in the tip electrode on each spine.
5. The catheter of claim 3, wherein the location sensor is mounted at or near the distal end of each spine.
6. The catheter of claim 1, wherein each spine comprises a tip electrode and at least one ring electrode.
7. The catheter of claim 6, wherein each spine further comprises a location sensor mounted at least partially in the tip electrode.
8. The catheter of claim 1, wherein each spine comprises a non-conductive covering having a support arm that has shape memory disposed therein.
9. The catheter of claim 8, wherein each support arm comprises nitinol.
10. The catheter of claim 1, wherein the mapping assembly is moveable between an expanded arrangement, in which each spine extends radially outward from the catheter body, and a collapsed arrangement, in which each spine is disposed generally along a longitudinal axis of the catheter body.
11. The catheter of claim 10, wherein, when the mapping assembly is in its expanded arrangement, each spine extends radially outwardly from the catheter body and forms a curved shape.
12. The catheter of claim 10, wherein, when the mapping assembly is in its expanded arrangement, each spine extends radially outwardly from the catheter body and forms a substantially straight line.
13. The catheter of claim 12, wherein each spine is substantially perpendicular to the longitudinal axis of the catheter body.
14. A method for mapping a region of the heart comprising:
introducing the distal end of the catheter of claim 1 into the region of the heart to be mapped;
positioning the mapping assembly so that at least one electrode from each spine is in contact with a first plurality of heart tissue;
recording electrical data from the first plurality of heart tissue;
repositioning the mapping assembly such that at least one electrode from each spine contacts a second different plurality of heart tissue; and recording electrical data from the second plurality of heart tissue.
15. The method of claim 14, wherein the distal end of the catheter is introduced through a guiding sheath having a distal end positioned in the heart so that the spines of the mapping assembly are covered by the guiding sheath.
16. The method of claim 14, wherein the positioning and repositioning steps comprise moving the guiding sheath proximally relative to the mapping assembly.
17. The method of claim 14, wherein each spine comprises a tip electrode mounted at or near the distal end of the spine.
18. The method of claim 14, wherein each spine further comprises at least one location sensor.
19. The method of claim 14, wherein each spine comprises a tip electrode and at least one ring electrode.
20. The method of claim 14, wherein each spine comprises a non-conductive covering having a support arm that has shape memory disposed therein.
21. The catheter of claim 20, wherein each support arm comprises nitinol.
22. A method for mapping Purkinje fibers in a region of the heart comprising:
introducing into the region of the heart to be mapped the distal end of a catheter comprising:
an elongated catheter body having a proximal end, a distal end and at least one lumen extending longitudinally therethrough; and a mapping assembly mounted at the distal end of the catheter body and comprising at least two spines, each spine having a proximal end attached at the distal end of the catheter body and a free distal end, wherein each spine comprises at least one electrode;
positioning the mapping assembly so that at least one electrode from each spine is in contact with a first plurality of heart tissue;
recording electrical data from the first plurality of heart tissue;
repositioning the mapping assembly such that at least one electrode from each spine contacts a second different plurality of heart tissue; and recording electrical data from the second plurality of heart tissue.
23. The method of claim 22, wherein the distal end of the catheter is introduced through a guiding sheath having a distal end positioned in the heart so that the spines of the mapping assembly are covered by the guiding sheath.
24. The method of claim 22, wherein the positioning and repositioning steps comprise moving the guiding sheath proximally relative to the mapping assembly.
25. The method of claim 22, wherein each spine comprises a tip electrode mounted at or near the distal end of the spine.
26. The method of claim 22, wherein the catheter further comprises an irrigation tube extending through the catheter body and having an open distal end that is in communication with the outside of the distal end of the catheter body.
27. The method of claim 22, wherein each spine further comprises at least one location sensor.
28. The method of claim 22, wherein each spine comprises a non-conductive covering having a support arm that has shape memory disposed therein.
CA2437680A 2002-08-30 2003-08-20 Catheter and method for mapping purkinje fibers Expired - Fee Related CA2437680C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/231,857 2002-08-30
US10/231,857 US7089045B2 (en) 2002-08-30 2002-08-30 Catheter and method for mapping Purkinje fibers

Publications (2)

Publication Number Publication Date
CA2437680A1 true CA2437680A1 (en) 2004-02-29
CA2437680C CA2437680C (en) 2012-10-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2437680A Expired - Fee Related CA2437680C (en) 2002-08-30 2003-08-20 Catheter and method for mapping purkinje fibers

Country Status (6)

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US (3) US7089045B2 (en)
EP (1) EP1393674B1 (en)
JP (1) JP4503254B2 (en)
CA (1) CA2437680C (en)
DE (1) DE60303572T2 (en)
IL (1) IL157319A (en)

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DE60303572D1 (en) 2006-04-20
EP1393674A1 (en) 2004-03-03
IL157319A (en) 2008-04-13
US20050113660A1 (en) 2005-05-26
US7089045B2 (en) 2006-08-08
US7228164B2 (en) 2007-06-05
DE60303572T2 (en) 2006-09-21
US20060111627A1 (en) 2006-05-25
US20040044277A1 (en) 2004-03-04
JP2004130114A (en) 2004-04-30
JP4503254B2 (en) 2010-07-14
CA2437680C (en) 2012-10-23
EP1393674B1 (en) 2006-02-15
IL157319A0 (en) 2004-02-19
US7302285B2 (en) 2007-11-27

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