WO1997042893B1 - Ablation catheter - Google Patents

Ablation catheter

Info

Publication number
WO1997042893B1
WO1997042893B1 PCT/GB1997/001270 GB9701270W WO9742893B1 WO 1997042893 B1 WO1997042893 B1 WO 1997042893B1 GB 9701270 W GB9701270 W GB 9701270W WO 9742893 B1 WO9742893 B1 WO 9742893B1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
probe
ablation catheter
new
catheter
Prior art date
Application number
PCT/GB1997/001270
Other languages
French (fr)
Other versions
WO1997042893A1 (en
Filing date
Publication date
Priority claimed from GBGB9609866.0A external-priority patent/GB9609866D0/en
Application filed filed Critical
Priority to DE69725981T priority Critical patent/DE69725981T2/en
Priority to US09/180,636 priority patent/US6245066B1/en
Priority to EP97920877A priority patent/EP0906064B1/en
Priority to JP54064197A priority patent/JP2001516230A/en
Publication of WO1997042893A1 publication Critical patent/WO1997042893A1/en
Publication of WO1997042893B1 publication Critical patent/WO1997042893B1/en

Links

Abstract

With reference to the figure, an ablation catheter (1) for use in heart surgery comprises a probe (2), a tubular electrode (3) mounted on the probe, so as to axially be slidable relative thereto, and remote-operated actuator means (4) for so sliding the electrode (3). The probe (2) is of electrically-insulating material, and comprises a tip (6), an axially-extending shaft (7), and a rear end portion (8). A surface groove (9) is formed in the probe which extends longitudinally up to the tip (6). The groove (9) locates a conductor (10) which interconnects the electrode (3) with a controllable source (15) of electrical energy and is enclosed in an insulating sheath (16) of flexible construction. The flexible sheath (16), and conductor (10) therein are axially slidable within the groove (9) of the catheter (1). The sheath (16) provides for electrical insulation of the conductor (10) as the electrode (3) is moved along the probe shaft (7). In use, the catheter (1) is employed to create long endocardial lesions in cardiac chambers by application of radio frequency current provided by the source (15). Contiguous lesions are created, in a series of steps, by careful, remote-operated movement of the electrode (3), and energisation of the same.

Claims

AMENDED CLAIMS
[received by the International Bureau on 6 November 1997 (06.11.97); original claim 23 amended; new claims 24-27 added; remaining claims unchanged (1 page)]
22. An ablation catheter substantially as hereinbefore described, with reference to Figure 1 or 3 of the accompanying drawings, modified substantially as hereinbefore described reference to Figure 5 of said drawings.
23. An ablation catheter as claimed in claim 1 , wherein the probe (2) has a shaft portion (7) and the electrode (3) is slideably mounted on the shaft portion 7, so as to be movable relative thereto.
24. An ablation catheter as claimed in claim 23, wherein the electrode (3) is of tubular form and embraces the shaft portion (7) of the probe (2).
25. An ablation catheter as claimed in claim 23 or 24, wherein the electrode (3) is of ovoid form.
26. An ablation catheter as claimed in claim 23, 24 or 25, wherein the movable electrode (3) is of multi-electrode component (3a, 3b) form.
27. The combination of an ablation catheter as claimed in any one of claims 1 to 26 and a source of energy connected thereto.
STATEMENT UNDER ARTICLE 19
The new claims all depend from present claim 1. New claims 23 and 24 find support in Figure 1; new claim 25 finds support in lines 15 to 18, page 3 of the specification, and new claim 26 is supported by Figure 3.
The new claims do not introduce matter which goes beyond the disclosure as filed.
PCT/GB1997/001270 1996-05-11 1997-05-09 Ablation catheter WO1997042893A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69725981T DE69725981T2 (en) 1996-05-11 1997-05-09 ablation catheter
US09/180,636 US6245066B1 (en) 1996-05-11 1997-05-09 Ablation catheter
EP97920877A EP0906064B1 (en) 1996-05-11 1997-05-09 Ablation catheter
JP54064197A JP2001516230A (en) 1996-05-11 1997-05-09 Resection catheter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9609866.0A GB9609866D0 (en) 1996-05-11 1996-05-11 Ablation catheter
GB9609866.0 1996-05-11

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/832,548 Division US6544263B2 (en) 1996-05-11 2001-04-11 Ablation catheter

Publications (2)

Publication Number Publication Date
WO1997042893A1 WO1997042893A1 (en) 1997-11-20
WO1997042893B1 true WO1997042893B1 (en) 1997-12-18

Family

ID=10793540

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/001270 WO1997042893A1 (en) 1996-05-11 1997-05-09 Ablation catheter

Country Status (7)

Country Link
US (2) US6245066B1 (en)
EP (1) EP0906064B1 (en)
JP (1) JP2001516230A (en)
DE (1) DE69725981T2 (en)
ES (1) ES2210522T3 (en)
GB (1) GB9609866D0 (en)
WO (1) WO1997042893A1 (en)

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