Self-expanding endovascular pacemaker system
First Claim
1. A system for applying and sensing electrical energy to and from tissue within a patient'"'"'s body, the system comprising:
- a flexible shaft having a proximal end and a distal end, and insertable within the patient'"'"'s body, said shaft defining a shaft axis line;
a plurality of self-expanding electrodes electrically coupled to an electrical source, each self-expanding electrode of said plurality thereof having a first end coupled to said shaft and a second end extending towards said distal end of said flexible shaft and separated from said first end a length of said each self-expanding electrode,wherein an angular displacement of said each self-expanding electrode at said first end thereof from said shaft is less than 90°
,wherein said each self-expanding electrode extends helically along and around said flexible shaft in an antegrade dispositional relation therewith, andwherein said each self-expanding electrode is radially expandable with respect to the shaft axis line from a compressed position to an expanded position into a contiguous contact with a wall of a tissue of the patient'"'"'s body substantially along said length of said each self-expanding electrode, said each self-expanding electrode being configured to conduct electrical signals from said electrical source into the wall of the tissue of the patient'"'"'s body when in contact with the wall; and
a steerable delivery catheter for insertion into a vascular system of the patient, said delivery catheter surrounding said electrodes and said flexible shaft and applying a pressure to said electrodes to thereby restrain said electrodes in the compressed position while within said delivery catheter, wherein said electrodes and said flexible shaft are removable from said delivery catheter,wherein said electrodes are elastically self-expanded to the expanded position when removed from said delivery catheter.
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Accused Products
Abstract
A system applies and senses electrical energy to and from tissue within a patient'"'"'s body. The system includes a steerable delivery catheter, housing a flexible shaft and an electrical generator disposed on or embedded within the flexible shaft. Electrodes coupled to the shaft self-expand radially from a compressed position to an expanded position once the delivery catheter is withdrawn, thereby contacting a wall of the tissue of the patient'"'"'s body to conduct electrical or other signals. The system may be inserted into the coronary sinus and tributary vein to provide physiological pacing to the His bundle and left ventricle. Further, the system provides for controlled passive transmission of normal electric impulses from the atria to the His bundle and ventricles without the need for an embedded generator.
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Citations
20 Claims
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1. A system for applying and sensing electrical energy to and from tissue within a patient'"'"'s body, the system comprising:
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a flexible shaft having a proximal end and a distal end, and insertable within the patient'"'"'s body, said shaft defining a shaft axis line; a plurality of self-expanding electrodes electrically coupled to an electrical source, each self-expanding electrode of said plurality thereof having a first end coupled to said shaft and a second end extending towards said distal end of said flexible shaft and separated from said first end a length of said each self-expanding electrode, wherein an angular displacement of said each self-expanding electrode at said first end thereof from said shaft is less than 90°
,wherein said each self-expanding electrode extends helically along and around said flexible shaft in an antegrade dispositional relation therewith, and wherein said each self-expanding electrode is radially expandable with respect to the shaft axis line from a compressed position to an expanded position into a contiguous contact with a wall of a tissue of the patient'"'"'s body substantially along said length of said each self-expanding electrode, said each self-expanding electrode being configured to conduct electrical signals from said electrical source into the wall of the tissue of the patient'"'"'s body when in contact with the wall; and a steerable delivery catheter for insertion into a vascular system of the patient, said delivery catheter surrounding said electrodes and said flexible shaft and applying a pressure to said electrodes to thereby restrain said electrodes in the compressed position while within said delivery catheter, wherein said electrodes and said flexible shaft are removable from said delivery catheter, wherein said electrodes are elastically self-expanded to the expanded position when removed from said delivery catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for applying and sensing electrical energy to and from tissue within a patient'"'"'s body, the system comprising:
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a flexible shaft having a proximal end and a distal end insertable within the patient'"'"'s body, said flexible shaft defining a shaft axis line; an electrical source embedded within said shaft; and
,a plurality of self-expanding electrodes electrically coupled to said electrical source, each self-expanding electrode of said plurality thereof having a first end coupled to said shaft and a second end extending towards said distal end of said flexible shaft and separated from said first end a length of said each self-expanding electrode, wherein an angular displacement of said each self-expanding electrode at said first end thereof from said shaft is less than 90°
,wherein said each self-expanding electrode extends helically along and around said flexible shaft in an ante grade dispositional relation therewith, and wherein said each self-expanding electrode is radially expandable with respect to the shaft axis line from a compressed position to an expanded position into a contact with a wall of a tissue of the patient'"'"'s body substantially along said length of said each self-expanding electrode in multiple radial planes, said each self-expanding electrode being configured to conduct electrical signals from said electrical source into the wall of the tissue of the patient'"'"'s body when in contact with the wall. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A system for generating and applying ultrasound energy to tissue within a patient'"'"'s body, the system comprising:
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a flexible shaft having a proximal end and a distal end, and insertable within the patient'"'"'s body, said shaft defining a shaft axis line; an ultrasound energy source embedded within said shaft; and
,a plurality of self-expanding electrodes electrically coupled to said ultrasound energy source, each self-expanding electrode of said plurality thereof having a first end coupled to said shaft and a second end extending towards said distal end of said flexible shaft and separated from said first end a length of said each self-expanding electrode, wherein an angular displacement of said each self-expanding electrode at said first end thereof is less than 90°
,wherein said each self-expanding electrode extends helically along and around said flexible shaft in an antegrade dispositional relation therewith, and wherein said each self-expanding electrode is radially expandable with respect to the shaft axis line from a compressed position into a contiguous contact with a wall of a tissue of the patient'"'"'s body substantially along said length of said each self-expanding electrode in multiple radial planes, said each self-expanding electrode being configured to conduct ultrasound energy signals from said ultrasound energy source into the wall of the tissue of the patient'"'"'s body when in contact with the wall.
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Specification