Right ventricular papillary approximation

A device for treating tricuspid regurgitation, the device comprising:

• a shaft;
• a first fixation mechanism disposed on a distal end of the shaft, wherein the first fixation mechanism is configured to anchor the device to a first cardiac tissue, wherein the first fixation mechanism is configured to be folded against the shaft to be substantially parallel to the shaft in a closed configuration, and to be expanded outward from the shaft in an open configuration;
• a second fixation mechanism disposed on a proximal end of the shaft, wherein the second fixation mechanism is configured to anchor the device to a second cardiac tissue, wherein the second fixation mechanism is configured to be folded against the shaft to be substantially parallel to the shaft in a closed configuration, and to be expanded outward from the shaft in an open configuration;
• a locking mechanism to lock the first and second fixation mechanisms in the open configurations, the locking mechanism comprising a first tube arranged around the shaft, a second tube arranged around the first tube, and a spring configured to cause the first tube to close around the shaft to lock the first and second fixation mechanisms in the open configurations;
• and
• an approximation mechanism connecting the first fixation mechanism and the second fixation mechanism, wherein the approximation mechanism causes the second fixation mechanism to move along the shaft toward the first fixation mechanism to approximate the first cardiac tissue and the second cardiac tissue.