Patent DE4026697C2 successfully refreshed from Google Patents.
Patent EP0317526B1 successfully refreshed from Google Patents.
EP0317526B1
Expired / Lapsed
EP
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A catheter for endocardial biopsy, which can also be used for identifying the point of origin of ventricular arrythmia
Assignee: Consiglio Nazionale delle Richerche
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Filing: 1988-11-15
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Granted: 1993-01-20
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Expires: 2008-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jorge A. Salerno
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 03:49
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/06; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1445; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6852; A61B18/1402
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
119 words
A catheter for cardial biopsy, comprising a distal portion provided with biopsy forceps (3) including two jaws (2, 4) which are movable relative to each other between an open position and a closed position, and means (15) which are operable from the proximal end of the catheter for moving the jaws (2, 4), characterised in that, in correspondence with its distal portion, the catheter is provided with at least two electrodes, at least one of which is constituted by one of the jaws of the forceps, which are connected electrically to two terminals (30, 31) situated at the proximal end of the catheter so the latter can be used for identifying the point of origin of a ventricular arrhythmia.
Claim 2
Dependent Claim
42 words
A catheter according to Claim 1, characterised in that the two electrodes are constituted by the two jaws of the biopsy forceps, which are of electrically conductive material and are electrically insulated from each other when they are in the open position.
Claim 3
Dependent Claim
54 words
A catheter according to Claim 2, characterised in that the distal end of the catheter has a supporting body (1) which incorporates one jaw (2) of the forceps, the other jaw (4) being formed by a lever (5) which is articulated to the supporting body (1) by means of pin (9) of insulating material.
Claim 4
Dependent Claim
47 words
A catheter according to Claim 3, characterised in that the supporting body (1) is connected to one end of a helical metal spiral (23) which runs along the whole length of the catheter, the opposite end of this spiral being connected to one of the terminals (30).
Claim 5
Dependent Claim
56 words
A catheter according to Claim 4, characterised in that the lever (5) is connected to a rigid metal operating cable (15) which runs along the whole length of the catheter within the metal spiral (23) and is provided with an insulating sheath (19), the proximal end of the cable being connected to the other terminal (31).
Claim 6
Dependent Claim
90 words
A catheter according to Claim 3, characterised in that the lever (5) incorporating one of the two jaws (4) of the forceps has a flat part (6) which is housed in a transverse notch (7) of the supporting body (1), and in that two flanges (13) of a U-shaped body (12) of insulating material are interposed between the two sides of the flat part (6) and the surfaces of the notch (7) which face them, the flanges (13) having facing holes (14) for the engagement of the articulation pin (9).
Claim 7
Dependent Claim
82 words
A catheter according to Claim 5, characterised in that the proximal end of the catheter has a support body (27) which is connected electrically to the metal spiral (23) and on which a sleeve (28) of insulating material is slidable mounted, the sleeve being provided with a terminal pin of electrically conductive material which passes through a slot (32) formed in the tubular body of the support element (27) and is connected to the proximal end of the metal operating cable (15).
References Cited (Backward Citations)
No citation records indexed.
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