WO1994024930B1 - Electrophysiology catheter with pre-curved tip - Google Patents

Electrophysiology catheter with pre-curved tip

Info

Publication number
WO1994024930B1
WO1994024930B1 PCT/US1994/004699 US9404699W WO9424930B1 WO 1994024930 B1 WO1994024930 B1 WO 1994024930B1 US 9404699 W US9404699 W US 9404699W WO 9424930 B1 WO9424930 B1 WO 9424930B1
Authority
WO
WIPO (PCT)
Prior art keywords
catheter
tip portion
catheter body
proximal
electrode
Prior art date
Application number
PCT/US1994/004699
Other languages
French (fr)
Other versions
WO1994024930A1 (en
Filing date
Publication date
Application filed filed Critical
Priority to EP94914940A priority Critical patent/EP0696176B1/en
Priority to AT94914940T priority patent/ATE219908T1/en
Priority to DE69430916T priority patent/DE69430916T2/en
Priority to DK94914940T priority patent/DK0696176T3/en
Publication of WO1994024930A1 publication Critical patent/WO1994024930A1/en
Publication of WO1994024930B1 publication Critical patent/WO1994024930B1/en

Links

Abstract

An electrode catheter (10) for mapping right sided supra-ventricular accessory electrical pathways comprises an elongated tubular catheter body (11) and a tip portion (12) which comprises a compound curve. The plane of the compound curve lies transverse to and preferably at an angle of about 30° to the axis of the catheter body (11). The compound curve carries a plurality of electrodes (21). A puller wire (30) extends through the catheter body (11) and into the tip portion (12), the distal end of the puller wire (30) being fixedly attached to the distal end of the tip portion (12). A handle (13) is provided at the proximal end of the catheter (10) for controlling longitudinal movement of the puller wire (30) relative to the catheter body (11). Proximal movement of the puller wire relative (30) to the catheter body (11) results in the angle of the first bend becoming more acute and a decrease in the diameter of the generally circular curve of the tip portion (12).

Claims

AMENDED CLAIMS[received by the International Bureau on 28 November 1994 (28.11.94); original claims 1 and 3 amended; remaining claims unchanged (1 page)]
1 . An elongated electrode catheter comprising: an elongated flexible tubular catheter body having an axis and proximal and distal ends; a tubular tip portion at the distal end of the tubular body having a preformed generally circular curve transverse to the axis of the catheter body, said tip portion having proximal and distal ends and carrying a plurality of spaced apart electrodes; an electrode lead wire associated with each electrode, said electrode lead wire having proximal and distal ends and extending through the catheter body and into the catheter tip portion, the distal end of the electrode lead wire being electrically connected to its associated electrode; a puller wire having proximal and distal ends extending through the tubular body and into the tip portion, the distal end of the puller wire being fixedly attached to about the distal end of the tip portion, whereby longitudinal movement of the puller wire relative to the tubular body results in contraction of the generally circular curve of the tip portion at the proximal end of the tubular body; and handle means connected to the proximal ends of the catheter body and puller wire for moving the puller wire longitudinally relative to the catheter body to thereby control the diameter of the generally circular curve of the tip portion.
2. An electrode catheter as claimed in claim 1 , wherein the plane of the generally circular curve of the tip portion is at an angle of about 30° to the axis of the tubular catheter body.
3. An electrode catheter as claimed in claim 1 , wherein the tip portion comprises a compound curve having a first bend away from the axis of the catheter body and a second bend forming the generally circular curve transverse to the axis of the catheter body.
4. An electrode catheter as claimed in claim 3, wherein the first bend is approximately 30° .
STATEMENT UNDER ARTICLE 19
Briefly, the amendments to claims 1 and 3 made concurrently under Article 19 are as follows:
Claim 1: modified description of the catheter to define proximal and distal ends, modified description of the catheter to define a preformed circular tip, and improved readability of the claim.
Claim 3: in third line, changed the second occurrence of "a" to - the - to improve syntax.
1 1
PCT/US1994/004699 1993-04-28 1994-04-28 Electrophysiology catheter with pre-curved tip WO1994024930A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP94914940A EP0696176B1 (en) 1993-04-28 1994-04-28 Electrophysiology catheter with pre-curved tip
AT94914940T ATE219908T1 (en) 1993-04-28 1994-04-28 ELECTROPHYSIOLOGY CATHETER WITH PRE-BENT TIP
DE69430916T DE69430916T2 (en) 1993-04-28 1994-04-28 ELECTROPHYSIOLOGY CATHETER WITH BENDED TIP
DK94914940T DK0696176T3 (en) 1993-04-28 1994-04-28 Electrophysiological catheter with pre-curved tip

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5519493A 1993-04-28 1993-04-28
US08/055,194 1993-04-28

Publications (2)

Publication Number Publication Date
WO1994024930A1 WO1994024930A1 (en) 1994-11-10
WO1994024930B1 true WO1994024930B1 (en) 1995-01-05

Family

ID=21996265

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/004699 WO1994024930A1 (en) 1993-04-28 1994-04-28 Electrophysiology catheter with pre-curved tip

Country Status (9)

Country Link
US (1) US5626136A (en)
EP (1) EP0696176B1 (en)
JP (1) JP2688115B2 (en)
AT (1) ATE219908T1 (en)
DE (1) DE69430916T2 (en)
DK (1) DK0696176T3 (en)
ES (1) ES2174875T3 (en)
PT (1) PT696176E (en)
WO (1) WO1994024930A1 (en)

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