Local cardiac motion control using applied signals and mechanical force

a technology of mechanical force and motion control, applied in the field of biological tissue control, can solve problems such as tissue trauma, and achieve the effect of reducing the motion of the segment and reducing the aspect of the segmen

Inactive Publication Date: 2006-02-09
IMPULSE DYNAMICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011] It is a further object of some aspects of the present invention to provide improved methods and apparatus for reducing motion of the heart during minimally-invasive and open chest surgery.
[0068] applying a stabilization element to a segment of the heart, so as to reduce motion of the segment; and

Problems solved by technology

Such mechanical restraint of the heart muscle requires that substantial force, e.g., pressure or vacuum, be applied, which can cause tissue trauma.

Method used

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  • Local cardiac motion control using applied signals and mechanical force
  • Local cardiac motion control using applied signals and mechanical force
  • Local cardiac motion control using applied signals and mechanical force

Examples

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Embodiment Construction

[0076] Reference is made to FIGS. 1, 2A, 2B, and 2C. FIG. 1 is a schematic illustration of apparatus 18, comprising a stabilization element 25 for reducing the motion of a segment 24 of a patient's heart 20, in accordance with a preferred embodiment of the present invention. FIGS. 2A, 2B, and 2C are schematic illustrations of stabilization element 25, in respective configurations thereof, in accordance with preferred embodiments of the present invention. Two techniques are typically utilized concurrently to modulate the motion of segment 24, in order to enable surgery within the segment:

[0077] Mechanical stabilization: A surface 27 of stabilization element 25 is placed on segment 24, so as to apply a mechanical force thereto. The force is typically derived from a positive pressure exerted by surface 27 of the element on heart 20. Alternatively or additionally, one or more optional vacuum ports 39 on surface 27 are coupled through a control unit 90 of apparatus 18 to a liquid-gas-va...

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Abstract

Apparatus (18) for performing a medical procedure on a beating heart (20) includes a mechanical stabilization element (25), a surface (27) of which is adapted to be applied to a segment (24) of the heart to reduce motion of the segment. One or more electrodes (100) are fixed to the surface of the stabilization element, so as to contact the segment when the stabilization element is applied to the segment. Preferably, at least one of the one or more electrodes is adapted to apply electrical signals to the segment so as to further reduce motion thereof, while the heart continues to pump blood.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of commonly assigned, co-pending U.S. patent application Ser. No. 09 / 979,937, filed May 20, 2002; which in turn is a U.S. National Phase of PCT Patent Application No. PCT / IL00 / 00303, filed May 25, 2000, which in turn is based upon U.S. patent application Ser. No. 09 / 320,090, filed May 26, 1999, now U.S. Pat. No. 6,442,424, each of which is incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates generally to invasive devices and methods for treatment of biological tissue, and specifically to devices and methods for controlling tissue and muscle during surgery. BACKGROUND OF THE INVENTION [0003] Heart surgery is often accompanied by the induction of cardioplegia (elective stopping of essentially all cardiac activity by injection of chemicals, selective hypothermia, mechanical stabilization, or electrical stimuli). In humans, induced global cardioplegia is nearly alway...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61N1/362A61B5/00A61B5/0215A61B5/042A61B5/11A61B17/00A61B17/02A61B17/30A61N1/05A61N1/18A61N1/365
CPCA61B5/0215A61B2562/046A61B5/1109A61B5/145A61B17/02A61B2017/00022A61B2017/00039A61B2017/0243A61B2017/306A61N1/0587A61N1/36514A61B5/6869A61B2505/05A61B2562/043A61B5/0422A61B5/287
Inventor BEN-HAIM, SHLOMODARVISH, NISSIMMIKA, YUVALROUSSO, BENNYFELZEN, BELLA
Owner IMPULSE DYNAMICS NV
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