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RU2012127341A - Катетер с регулируемой дугообразной дистальной секцией - Google Patents

Катетер с регулируемой дугообразной дистальной секцией Download PDF

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RU2012127341A
RU2012127341A RU2012127341/14A RU2012127341A RU2012127341A RU 2012127341 A RU2012127341 A RU 2012127341A RU 2012127341/14 A RU2012127341/14 A RU 2012127341/14A RU 2012127341 A RU2012127341 A RU 2012127341A RU 2012127341 A RU2012127341 A RU 2012127341A
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elongated body
shape
catheter
longitudinal axis
catheter according
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RU2012127341/14A
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RU2542088C2 (ru
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Том Аллен ДИТТЕР
Диана ГАЛАРДО
Шахрам МОАДДЕБ
Майкл Олен ЗЕРКЛ
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Байосенс Вебстер (Изрэйл), Лтд.
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0538—Measuring electrical impedance or conductance of a portion of the body invasively, e.g. using a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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]
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    • 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
    • A61B5/6857—Catheters with a distal pigtail shape
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    • A61B2017/00831—Material properties
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    • A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
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    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
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    • A61B2018/00375—Ostium, e.g. ostium of pulmonary vein or artery
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    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
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    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
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    • A61B2018/1425—Needle
    • A61B2018/1432—Needle curved
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
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    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
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    • 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

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Abstract

1. Катетер, содержащий:удлиненный корпус, имеющий продольную ось;дистальный узел, расположенный дистально по отношению к удлиненному корпусу, при этом дистальный узел имеет опорный элемент с эффектом запоминания формы и спиралевидную форму;по меньшей мере один орошаемый абляционный кольцевой электрод, установленный на спиралевидной форме; ирукоятку управления, расположенную проксимально по отношению к удлиненному корпусу;при этом спиралевидная форма имеет такую осевую конфигурацию, что центральная продольная ось спиралевидной формы выровнена в аксиальном направлении с продольной осью удлиненного корпуса.2. Катетер по п.1, дополнительно содержащий сжимающую проволоку, проходящую через удлиненный корпус, и дистальный узел, причем рукоятка управления включает в себя первый элемент управления, выполненный с возможностью приведения в действие сжимающей проволоки для сжатия спиралевидной формы.3. Катетер по п.1, дополнительно содержащий отклоняющую проволоку, проходящую через удлиненный корпус, причем рукоятка управления включает в себя второй элемент управления, выполненный с возможностью приведения в действие отклоняющей проволоки для отклонения части удлиненного корпуса.4. Катетер по п.1, в котором опорный элемент с эффектом запоминания формы является полым.5. Катетер по п.4, дополнительно содержащий мандрен, выполненный с возможностью введения через опорный элемент с эффектом запоминания формы, причем мандрен имеет форму, отличную от спиралевидной формы.6. Катетер по п.1, в котором орошаемый абляционный кольцевой электрод имеет по меньшей мере одно отверстие, выполненное с возможностью пропускания жи�

Claims (21)

1. Катетер, содержащий:
удлиненный корпус, имеющий продольную ось;
дистальный узел, расположенный дистально по отношению к удлиненному корпусу, при этом дистальный узел имеет опорный элемент с эффектом запоминания формы и спиралевидную форму;
по меньшей мере один орошаемый абляционный кольцевой электрод, установленный на спиралевидной форме; и
рукоятку управления, расположенную проксимально по отношению к удлиненному корпусу;
при этом спиралевидная форма имеет такую осевую конфигурацию, что центральная продольная ось спиралевидной формы выровнена в аксиальном направлении с продольной осью удлиненного корпуса.
2. Катетер по п.1, дополнительно содержащий сжимающую проволоку, проходящую через удлиненный корпус, и дистальный узел, причем рукоятка управления включает в себя первый элемент управления, выполненный с возможностью приведения в действие сжимающей проволоки для сжатия спиралевидной формы.
3. Катетер по п.1, дополнительно содержащий отклоняющую проволоку, проходящую через удлиненный корпус, причем рукоятка управления включает в себя второй элемент управления, выполненный с возможностью приведения в действие отклоняющей проволоки для отклонения части удлиненного корпуса.
4. Катетер по п.1, в котором опорный элемент с эффектом запоминания формы является полым.
5. Катетер по п.4, дополнительно содержащий мандрен, выполненный с возможностью введения через опорный элемент с эффектом запоминания формы, причем мандрен имеет форму, отличную от спиралевидной формы.
6. Катетер по п.1, в котором орошаемый абляционный кольцевой электрод имеет по меньшей мере одно отверстие, выполненное с возможностью пропускания жидкой среды из внутренней части кольцевого электрода наружу от кольцевого электрода в радиальном направлении.
7. Катетер по п.1, в котором орошаемый абляционный кольцевой электрод имеет по меньшей мере одно отверстие, выполненное с возможностью пропускания жидкой среды из внутренней части кольцевого электрода наружу от кольцевого электрода в аксиальном направлении.
8. Катетер по п.1, дополнительно содержащий по меньшей мере один кольцевой электрод, выполненный с возможностью измерения импеданса.
9. Катетер по п.1, дополнительно содержащий по меньшей мере один кольцевой электрод, выполненный с возможностью измерения потенциалов ЛВ.
10. Катетер, содержащий:
удлиненный корпус, имеющий продольную ось;
дистальный узел, расположенный дистально по отношению к удлиненному корпусу, при этом дистальный элемент имеет полый опорный элемент, определяющий первую заданную форму;
по меньшей мере один электрод, установленный на дистальном узле;
рукоятку управления, расположенную проксимально по отношению к удлиненному корпусу; и
мандрен, определяющий вторую заданную форму, причем мандрен выполнен с возможностью введения в полый опорный элемент.
11. Катетер по п.10, в котором первая заданная форма дистального узла является по существу спиралевидной.
12. Катетер по п.10, в котором первая заданная форма дистального узла является по существу серповидной.
13. Катетер по п.10, в котором первая заданная форма дистального узла имеет большую кривизну, а вторая заданная форма мандрена имеет меньшую кривизну.
14. Катетер по п.10, в котором первая заданная форма имеет осевую конфигурацию, так что центральная продольная ось первой заданной формы выровнена в аксиальном направлении с продольной осью удлиненного корпуса.
15. Катетер по п.10, в котором первая заданная форма дистального узла имеет такую конфигурацию за кромкой, что заданная форма имеет центральную продольную ось, которая параллельна, но не выровнена в аксиальном направлении с продольной осью удлиненного корпуса.
16. Катетер по п.10, в котором полый опорный элемент включает в себя полую витую трубку.
17. Катетер по п.10, в котором полый опорный элемент включает в себя трубчатый элемент со спиральной насечкой по его длине.
18. Катетер по п.17, в котором спиральная насечка имеет переплетающийся рисунок.
19. Катетер, содержащий:
удлиненный корпус, имеющий продольную ось;
дистальный узел, расположенный дистально по отношению к удлиненному корпусу, при этом дистальный элемент имеет опорный элемент с эффектом запоминания формы и по существу круглую форму;
по меньшей мере один орошаемый абляционный кольцевой электрод, установленный на по существу круглой форме; и
рукоятку управления, расположенную проксимально по отношению к удлиненному корпусу;
в котором круглая форма имеет такую конфигурацию за кромкой, что круглая форма закручивается в спираль вокруг продольной оси удлиненного корпуса.
20. Катетер по п.19, в котором круглая форма имеет внеосевую конфигурацию, при этом центральная продольная ось круглой формы смещена в осевом направлении от продольной оси удлиненного корпуса.
21. Катетер по п.19, дополнительно содержащий мандрен, имеющий форму, отличающуюся от по существу круглой формы, причем опорный элемент с эффектом запоминания формы выполнен с возможностью приема мандрена.
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