Cardiac pace-maker

• US 4,201,219 A
• Filed: 03/03/1978
• Issued: 05/06/1980
• Est. Priority Date: 03/03/1977
• Status: Expired due to Term

• Current Assignee: Jose L. Bozal Gonzalez
• Original Assignee: Jose L. Bozal Gonzalez
• Inventors: Bozal Gonzalez, Jose L.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US05/883,251
• Time in Patent Office: 795 Days
• Field of Search: 128/419 PG, 128/2.06 E, 128/2.1 E, 639/2.4, 642/260
• US Class Current: 607/22
• CPC Class Codes: A61N 1/36514 controlled by a physiological quantity other than heart potential, e.g. blood pressure controlled by two or more physical parameters A61N1/36585

Abstract

The rhythm of a cardiac pace-maker is controlled by regulation signals detected in the nerves via receivers. At least one neurodetector device detects trains of nerve impulses and/or the action potentials which circulate through the nerves via, or which are generated in, the nerve receivers and converts them into electric signals. Associated electric circuits transform the electric signals detected in the neurodetectors and process the same so that the frequency of the periodic impulse generator of the pace-maker is modified.

Claims

1. A cardiac pace-maker comprising:

neurodetector means, connectable to nerve vias or receivers in the heart of a patient, for detecting a train of nerve impulses therein and for converting such detected train of nerve impulses into electrical signals representative of physiological activity of the heart of the patient;

periodic impulse generator means for supplying electrical impulses to the heart of the patient; and

regulation circuit means, connected to said neurodetector means and to said periodic impulse generator means, for generating a modifying signal proportional to the cardiac frequency necessary for the physiological activity of the heart as a function of said electrical signals, for supplying said modifying signal to said periodic impulse generator means, and for thereby modifying the frequency of said electrical impulses from said periodic impulse generator means to correspond to said necessary cardiac frequency.

2. A cardiac pace-maker as claimed in claim 1, wherein said neurodetector means comprises microelectrode means for detecting a train of nerve impulses generated in the sinus and glomus carotids of the heart, and said regulation circuit means comprises an amplifier for receiving and amplifying said train of impulses from said microelectrode means, separating filter means for separating the said impulses from said sinus carotid and from said glomus carotid, first and second meters for calculating the average frequencies of said impulses from said sinus and glomus carotids, respectively, and for generating signals representative thereof, and voltage proportioning means for converting said representative signals into said modifying signal.

3. A cardiac pace-maker as claimed in claim 2, wherein said microelectrode means comprises first and second microelectrodes, each including a silver ball detector end and a Teflon coated casing.