Septum attached ventricular support
A method and device are disclosed for treating congestive heart disease. The material of the device is secured to the heart proximate the septal wall. The material covering the ventricles may or may not have the same tension and or compliance. The device can be constructed as a unitary “jacket” that is slipped over the apex of the heart. Alternately, the device implanted as one, two or more separate components. In one embodiment, the material covers both the left and right ventricles. In another embodiment, the material covers only one ventricle. The device may include at least one adjustment mechanism configured to adjust the tension of the material. Preferably, the device includes a first adjustment mechanism configured to adjust a tension of the material covering the right ventricle and a second adjustment mechanism configured to adjust the tension of the material covering the left ventricle such that the tension of the material covering the left ventricle can be different than the tension of the material covering the right ventricle.
1. A method for treating cardiac disease of a patient's heart, the heart having a myocardium and ventricular lower extremities comprising a right ventricle and left ventricle, the right and left ventricles being separated by a septum, said method comprising:
surgically accessing the patient's heart;
positioning a left component portion over the left ventricle, the left component portion comprising a piece of biomedical material having an upper end and a lower end and sized for a distance between said upper end and said lower end to substantially cover said left ventricle and to exert a first pressure on the left ventricle;
positioning a right component portion over the right ventricle, the right component portion comprising a piece of biomedical material having an upper end and a lower end and sized for a distance between said upper and said lower end to substantially cover said right ventricle and the exert a second pressure different than the first pressure on the right ventricle; and
securing the biomedical material of the left component portion and the right component portion proximate the septum and for said material to conform to an external geometry of the left and right ventricles and for the material to constrain circumferential expansion of the left and right ventricles during diastole and permit unimpeded contraction of the heart during systole.
2. The method of claim 1 , further comprising adjusting a tension of the material covering the left and right ventricles by gathering excess material and suturing a seam on the material covering the left and right ventricles.
3. The method of claim 1 , wherein said step of securing comprises suturing said material to said heart overlying said septum.
4. A method according to claim 1 , wherein said material is adapted to constrain said left and right ventricles from expanding beyond a maximum volume.
5. The method of claim 1 wherein the second pressure exerted by the right component portion is a lower pressure than the first pressure exerted by the left component portion.