Electrode adapted for implantation
First Claim
1. In an electrode for use in effecting the intracardial stimulation of a heart through an implanted heart pacemaker, said electrode comprising an elongate electrical conductor;
- an electrical insulation encompassing said conductor, an uninsulated generally cylindrical electrode head being connected to said conductor at one end thereof for transmission of stimulating impulses to the heart from the electrode and being mounted on the proximal end of said insulation, means on said electrode for anchoring said electrode head in the heart, and electrical connector means at the distal end of the conductor adapted for connection to a pacemaker, the improvement comprising;
said electrode including a continuous elongate hose forming said electrical insulation for said conductor, said hose having first and second parallel longitudinal passageways, said electrical conductor being positioned in the first of said passageways;
said electrode head anchoring means including a volumetrically variable receptacle having at least partly elastic wall portions, said receptacle being connected to said electrode in a region adjacent to said electrode head, and said second passageway forming a closable connecting conduit means communicating with said receptacle for filling the latter with a receptacle-expanding medium.
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Accused Products
Abstract
An electrode adapted for implantation for effecting the intracardial stimulation of a heart through the intermediary of an implanted heart pacemaker. The electrode, without the need for a barb on the electrode head, may be securely placed within the heart, and in which it is also afforded that, as required, a safe relocation thereof may be carried out in which no injury is occasioned of the muscle tissues encompassing the electrode head. The foregoing includes means for the anchoring of the electrode head, comprising a receptacle of a variable volume which is connected with the electrode in a region proximate to the electrode head, and with the receptacle incorporating at least partly elastic walls and a closable connecting conduit for the filling of the receptacle.
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Citations
14 Claims
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1. In an electrode for use in effecting the intracardial stimulation of a heart through an implanted heart pacemaker, said electrode comprising an elongate electrical conductor;
- an electrical insulation encompassing said conductor, an uninsulated generally cylindrical electrode head being connected to said conductor at one end thereof for transmission of stimulating impulses to the heart from the electrode and being mounted on the proximal end of said insulation, means on said electrode for anchoring said electrode head in the heart, and electrical connector means at the distal end of the conductor adapted for connection to a pacemaker, the improvement comprising;
said electrode including a continuous elongate hose forming said electrical insulation for said conductor, said hose having first and second parallel longitudinal passageways, said electrical conductor being positioned in the first of said passageways;
said electrode head anchoring means including a volumetrically variable receptacle having at least partly elastic wall portions, said receptacle being connected to said electrode in a region adjacent to said electrode head, and said second passageway forming a closable connecting conduit means communicating with said receptacle for filling the latter with a receptacle-expanding medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- an electrical insulation encompassing said conductor, an uninsulated generally cylindrical electrode head being connected to said conductor at one end thereof for transmission of stimulating impulses to the heart from the electrode and being mounted on the proximal end of said insulation, means on said electrode for anchoring said electrode head in the heart, and electrical connector means at the distal end of the conductor adapted for connection to a pacemaker, the improvement comprising;
Specification