The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Oct. 31, 2007
Nissim Darvish, Hof HaCamel, IL;
Bella Felsen, Haifa, IL;
Itzhak Shemer, Haifa, IL;
Judith Kornfeld, Zikhron-Yaakov, IL;
Shlomo Ben-haim, Orangeburg, NY (US);
Maier Fenster, Petach-Tikva, IL;
Yuval Mika, Closter, NJ (US);
Nissim Darvish, Hof HaCamel, IL;
Bella Felsen, Haifa, IL;
Itzhak Shemer, Haifa, IL;
Judith Kornfeld, Zikhron-Yaakov, IL;
Shlomo Ben-Haim, Orangeburg, NY (US);
Maier Fenster, Petach-Tikva, IL;
Yuval Mika, Closter, NJ (US);
Impulse Dynamics, N.V., Curacao, AN;
Abstract
A method of modifying the force of contraction of at least a portion of a heart chamber is provided. A non-excitatory electric field of given duration is applied, at a delay after an activation of the heart, which increase the force of contraction by at least 5%. Apparatus is also provided for pacing with hemodynamic improvement. Circuitry applies an extended pacing signal to electrodes to pace the heart, the extended pacing signal having an overall duration greater than 8 ms from a time of initiation of application of that portion of the signal that initiates action potential propagation. The signal includes a train of biphasic pulses having pulse durations of at least 1 ms, and the signal has an amplitude that is at least three times as great as a threshold for pacing the heart and that is sufficient neither for cardioversion nor for defibrillation. Other embodiments are also described.