permitting the device to be straightened and or bent for being advanced into the coronary sinus after being positioned within the coronary sinus the device is permitted to assume its preformed arched configuration to act upon the mitral valve annulus as previously described to that end the device may be formed of for example nitinol a nickel titanium alloy well known in the art this material as is well known is capable of being preformed but manipulated to be straight or partially bent while having sufficient memory to return to its preformed configuration stainless steel is also among the materials which may be used in forming the device 30 in order to be received within the coronary sinus the device may have a cross sectional dimension of for example on the order of four or five french with continued reference to fig2 the device 30 has a distal end 34 and a proximal end 36 between the distal end 34 and proximal end 36 the device further includes a channel 38 which is aligned with a bore 40 extending through the distal end 34 and a bore 42 extending through the proximal end 36 the proximal end 36 further includes an integral sleeve 44.