Positive fixation heart wire

Details Positive fixation heart wire Positive fixation heart wire

1980-11-03

1982-07-13

Cohen, Lee S.

Surgery

Truss

Pad

128785, 128419P, A61B 504, A61N 104

Patent

active

043389473

ABSTRACT:
A lead or heart wire for use in temporary electrical stimulation or monitoring of epicardial tissue. Positive fixation is accomplished by suturing the electrode to the tissue using an attached length of surgical thread and a curved needle. The heart wire is a tightly wound helix of wire insulated by a sheath. A needle, used for electrical connection to external equipment, is attached to the proximal end. Near the distal end, the conductor is bent into an "C" shape. The electrode is attached about midway along the top of the "C" shaped length of conductor. The length of surgical thread is attached to the proximal end of the conductor and exits the sheath through an aperture proximal to the "C" shape. The curved needle is attached to the distal end of the surgical thread. The heart wire may be readily removed after use by removing the surgical thread. The heart wire may be readily removed after use by removing the surgical thread, which is retracted into the conductor by pulling at its proximal end.

REFERENCES:
patent: 3035583 (1962-05-01), Hirsch et al.
patent: 3474791 (1969-10-01), Bentor
patent: 4010756 (1977-03-01), DuMont et al.
patent: 4144889 (1979-03-01), Tyers et al.
Medtronic, Inc. Product Catalog Effective Apr. 15, 1979, "Temporary Leads" sheet.

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