Transcoronary sinus pacing system, LV summit pacing, early mitral closure pacing, and methods therefor
View Patent ↗A transcoronary sinus pacing system comprising a sheath having a lumen, a pacing catheter having a pacing needle, wherein the catheter can be advanced within the lumen and placed in the LV summit, and a right ventricular pacing device. A LV summit pacing device. An early mitral valve closure pacing device configured to operate with a right ventricular apex pacing device. A method for implanting a pacing device at a target coronary sinus tissue location, wherein the target can be the posterior LV summit. A method for achieving early closure of a mitral valve. A method for using visualization devices such as fluoroscopy or ultrasound and/or catheter features such as a radiopaque marker to locate a target location for LV pacing and to avoid piercing an artery or the pericardium when anchoring the LV pacing electrode.
1. A method for implanting a pacing device, comprising the steps of:
a. introducing a sheath;
b. steering the sheath to a left ventricular summit;
c. lodging a distal end of the sheath beyond a posterior summit of a left ventricle;
d. advancing a pacing lead through a lumen of the sheath to the left ventricular summit;
e. perforating the coronary sinus with the pacing lead;
f. coupling the pacing lead to cardiac tissue at the posterior summit of the left ventricular at a first end;
g. removing the sheath; and
h. activating the left ventricular summit to achieve early closure of a mitral valve during systole.
2. The method of claim 1 , further comprising the steps of:
i. advancing a right ventricular pacing catheter to a target location within a right ventricle,
j. positioning the electrode at the target location within the right ventricle.
3. The method of claim 1 , further comprising the steps of
obtaining an angiogram,
obtaining a live fluoroscopic image,
correlating the angiogram with live fluoroscopic image, and
analyzing the correlated images to identify anatomical structures.
4. The method of claim 1 , further comprising the steps of:
obtaining an angiogram;
obtaining a live intravascular ultrasound;
correlating an angiogram with live intravascular ultrasound; and
analyzing the correlated images to identify anatomical structures.
5. The method of claim 1 , comprising the step of using the cross-sectional shape of the device to facilitate steering and perforating.
6. A method for achieving early closure of a mitral valve, comprising the steps of:
a. introducing a sheath;
b. steering the sheath to a target location within a coronary sinus;
c. advancing a left ventricular pacing lead through a lumen of the sheath to the target location within the coronary sinus;
d. perforating the coronary sinus with the left ventricular pacing lead;
e. coupling the left ventricular pacing lead to a cardiac stimulation device;
f. coupling a right ventricular pacing lead from a right ventricle to the cardiac stimulation device;
g. removing the sheath; and
h. activating the cardiac stimulation device to deliver energy to the pacing leads to achieve early closure of the mitral valve during systole.
7. The method of claim 6 , wherein the step of coupling the right ventricular pacing lead further comprises the step of advancing a right ventricular pacing catheter to a first target location within the heart.
8. The method of claim 7 , comprising the step of positioning a right ventricular pacing lead at the first target location within the heart.
9. The method of claim 8 , comprising the step of correlating an angiogram with live fluoroscopy.
10. The method of claim 6 , comprising the step of correlating an angiogram with live intravascular ultrasound.
11. The method of claim 6 , wherein the target location within the coronary sinus is a left ventricular pacing summit.
12. The method of claim 6 , comprising the step of using the cross-sectional shape of the device to facilitate the steering and perforating.