Trans septal implantable medical device
First Claim
1. An implantable medical device (IMD) configured for deployment at a ventricular septum of a patient'"'"'s heart, the ventricular septum of the patient'"'"'s heart having a right ventricle (RV) facing side and a left ventricle (LV) facing side, the IMD comprising:
- a housing having a proximal end and a distal end, the housing configured to fit within the right ventricle (RV) of the patient'"'"'s heart with the distal end of the housing proximate the RV facing side of the ventricular septum once the IMD is implanted in the patient'"'"'s heart;
a power source disposed within the housing;
circuitry disposed within the housing and operatively coupled to the power source;
a first RV electrode adjacent the distal end of the housing and positioned to be facing the RV facing side of the ventricular septum once the IMD is implanted, the first RV electrode operatively coupled with the circuitry in the housing;
a second RV electrode spaced proximally of the first RV electrode, the second RV electrode operatively coupled with the circuitry in the housing;
an LV electrode positioned distally of the first RV electrode and extends at least partially through the ventricular septum once the IMD is implanted, the LV electrode operatively coupled with the circuitry in the housing; and
an LV electrode position adjustment assembly for adjusting a distance that the LV electrode is positioned distally of the first RV electrode, wherein the LV electrode position adjustment assembly comprises a coupling secured relative to the housing, wherein the coupling is configured to mate with a separate adjustment tool that can move the coupling relative to the housing to adjust the distance that the LV electrode is positioned distally of the first RV electrode.
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Accused Products
Abstract
An implantable medical device (IMD) includes a housing that is configured to be positioned at least in part in a chamber of a heart, and in some cases, in a right ventricle (RV) proximate an RV facing side of the ventricular septum of the heart. When so provided, an RV electrode may be fixed relative to the housing to be proximate the RV facing side of the ventricular septum. An LV electrode may be spaced a distance from the RV electrode and the housing such that the LV electrode is positioned at least partially within the ventricular septum. An LV electrode position adjustment assembly may be used to adjust the depth at which the LV electrode is positioned within the ventricular septum.
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Citations
20 Claims
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1. An implantable medical device (IMD) configured for deployment at a ventricular septum of a patient'"'"'s heart, the ventricular septum of the patient'"'"'s heart having a right ventricle (RV) facing side and a left ventricle (LV) facing side, the IMD comprising:
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a housing having a proximal end and a distal end, the housing configured to fit within the right ventricle (RV) of the patient'"'"'s heart with the distal end of the housing proximate the RV facing side of the ventricular septum once the IMD is implanted in the patient'"'"'s heart; a power source disposed within the housing; circuitry disposed within the housing and operatively coupled to the power source; a first RV electrode adjacent the distal end of the housing and positioned to be facing the RV facing side of the ventricular septum once the IMD is implanted, the first RV electrode operatively coupled with the circuitry in the housing; a second RV electrode spaced proximally of the first RV electrode, the second RV electrode operatively coupled with the circuitry in the housing; an LV electrode positioned distally of the first RV electrode and extends at least partially through the ventricular septum once the IMD is implanted, the LV electrode operatively coupled with the circuitry in the housing; and an LV electrode position adjustment assembly for adjusting a distance that the LV electrode is positioned distally of the first RV electrode, wherein the LV electrode position adjustment assembly comprises a coupling secured relative to the housing, wherein the coupling is configured to mate with a separate adjustment tool that can move the coupling relative to the housing to adjust the distance that the LV electrode is positioned distally of the first RV electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable medical device (IMD) configured for deployment within a heart chamber of a patient'"'"'s heart, near a septum of the patient'"'"'s heart, the septum of the patient'"'"'s heart having a first chamber facing side facing the heart chamber and a second opposing chamber facing side, the IMD comprising:
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a housing configured to be positioned at least in part in the heart chamber proximate the first chamber facing side of the septum once the IMD is implanted in the patient'"'"'s heart; a power source disposed within the housing; circuitry disposed within the housing and operatively coupled to the power source; one or more first chamber electrodes fixed relative to the housing and positioned to be proximate the first chamber facing side of the heart chamber once the IMD is implanted, the one or more first chamber electrodes operatively coupled with the circuitry in the housing; a lumen defined by the housing; an outer shaft that extends through the lumen and is translatable relative to the lumen; a second chamber electrode disposed at or near a distal end of the outer shaft, the second chamber electrode operably coupled with the circuitry disposed within the housing; and an inner shaft threadedly engaged with the outer shaft such that the inner shaft may be rotated relative to the outer shaft in order to effect translation of the outer shaft relative to the housing, the outer shaft translatable between a retracted position in which the second chamber electrode is proximate the first chamber facing side of the septum and an extended position in which the second chamber electrode extends at least partially into the septum. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of facilitating dual chamber pacing of a heart, the method comprising:
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advancing a leadless cardiac pacemaker (LCP) to a position proximate a first side of a septum of the heart, the LCP including a housing and two first chamber electrodes disposed relative to the housing, the LCP further including a second chamber electrode and an electrode position adjustment assembly with a coupling for adjusting a position of the second chamber electrode relative to the housing; mating an adjustment tool to the coupling of the electrode position adjustment assembly; manipulating the adjustment tool to move the coupling relative to the housing to adjust the position of the second chamber electrode relative to the housing; and deploying a fixation mechanism to secure the LCP relative to the septum. - View Dependent Claims (19, 20)
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Specification