EP0149431A2
Expired / Lapsed
EP
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Active anchored intracavitary electrocatheter with retractible spring wire
Assignee: BORGHI, ENZO
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Filing: 1984-10-23
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Granted: —
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Expires: 2004-10-23
Abstract
Abstract The patent relates to an electrocatheter for cardiac stimulation of the retractible active fixation type, the main characteristics of which are: the path followed at the time of anchoring causes no deformation; extraction of the wire for - active anchoring to the cardiac muscle is easy; blood and organic liquids are prevented from penetrating into the stimulating head. The construction throughout with metal components ensures easy use of the catheter without alterations in the functional ability thereof, for a large number of anchoring and withdrawal operations.
Inventors
- 👤 Gino Grassi
- 👤 Enzo Borghi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 05:41
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/057; A61N1/0573
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
53 words
Active anchored electrocatheter with retractible anchoring mechanism, characterized by the fact that the head, made completely of biocompatible metal materials (Pt-Ir or the like), is provided with anchoring mechanism constituted by a natural or activated surface biocompatible material anchoring wire 1 that is controlled and guided by two coaxial spirals 3 and 8.
Claim 2
Dependent Claim
53 words
Active anchored electrocatheter with retractible anchoring mechanism, characterized by the fact that the head, made completely of biocompatible metal materials (Pt-Ir or the like), is provided with anchoring mechanism constituted by a natural or activated surface biocompatible material anchoring wire 1 that is controlled and guided by two coaxial spirals 3 and 8.
Claim 3
Dependent Claim
42 words
Electrocatheter according to Claim 1, characterized by the fact that of the two mechanism control spirals, the external spiral 8 has a guiding and conduction stimulus function, while the internal spiral 3 has a dual anchoring mechanism extraction and stimulus conduction function.
Claim 4
Dependent Claim
34 words
Electrocatheter according to Claim 1, characterized by the fact that the mechanism of the extractible anchoring wire ensures, through one or more biocompatible elastic sealing rings 6, prevention against the infiltration of organic liquids.
Claim 5
Dependent Claim
32 words
Electrocatheter according to Claim 1, characterized by the fact that the extraction of the anchoring wire 1 is guided by an endless screw 4 incorporated in the cylindrical body of the head.
Claim 6
Dependent Claim
48 words
Electrocatheter according to Claim 2, characterized by the fact that even prior to the extraction of the anchoring wire 1, the electrode is able to stimulate with good characteristics because of the conformation of the cylinder 5, the collar of which can stimulate like a normal passive electrode.
Claim 7
Dependent Claim
45 words
Electrocatheter according to Claims 4 and 5, characterized by the fact that the metal component parts (1, 4 and 5) in contact with the blood can be chemically treated in order to obtain both electrochemical activation and a higher degree of biocompatibility (non-thrombogenic membrane covering).
Claim 8
Dependent Claim
42 words
Electrocatheter according to Claim 1, characterized by the fact that the form of construction comprising the two spirals, namely one external and one internal, enables there to be a redundance in the stimulus conduction systems whereby maximum reliability for this be ensured.
References Cited (Backward Citations)
No citation records indexed.
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