Surgery – Truss – Pad
Patent
1979-12-19
1982-09-28
Kamm, William E.
Surgery
Truss
Pad
128419P, A61N 104
Patent
active
043513450
ABSTRACT:
A system for providing electrical stimulation to a heart muscle is especially characterized in that cardiac leads are passed through a surgically created opening in the wall of an atrium or the wall of a great vein adjacent an atrium into the interior of the heart. Procedures for placement of both atrial and ventricular cardiac leads are disclosed, which procedures can be used in connection with leads placed in both the left and right chambers of the heart. These procedures are especially suited for placing cardiac leads used with A-V sequential pacing, for they allow leads to be attached to both an atrium and a ventricle of a heart through a single small incision in the chest.
Improved cardiac leads are disclosed in which a channel is formed in the lead for receiving a guide probe such as tip manipulator or a malleable probe as an aid in lead placement. Other disclosed improvements relate to a spring clasp for securing an atrial lead to the atrial wall; a collar for assisting in securing a lead to the wall of a great vein or an atrium; position markers for leads; and an atrial lead having a barbed protruding element for passing through the atrial wall to secure the lead in place.
REFERENCES:
patent: Re27569 (1973-02-01), Ackerman
patent: 3729008 (1973-04-01), Berkevits
patent: 3880169 (1975-04-01), Starr et al.
patent: 3952742 (1976-04-01), Taylor
patent: 4154247 (1979-05-01), O'Neill
patent: 4166469 (1979-09-01), Littleford
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