A tissue stabilizer for endoscopically stabilizing a target tissue within a patient's body, the tissue stabilizer comprising: a shaft having a proximal end and a distal end, the shaft sized to allow insertion through an endoscopic cannula; a manipulable foot comprising an ankle, a first toe portion, and a second toe portion, the ankle connected with the distal end of the shaft, the first and second toe portions (1042, 1046) connected with the ankle, each toe portion (1042, 1046) comprising at least one suction port to apply suction to the target tissue during stabilization, the first toe portion and second toe portion rotateable to a first arrangement wherein the foot is insertable through the endoscopic cannula; and a tension cable passing through the shaft wherein applying tension to the cable locks the ankle in position; the tissue stabilizer characterised in that: the ankle comprises (i) a housing and (ii) an adjustable neck comprising a series of interlocking balls and intermediate socket rings, the adjustable neck connected with the housing and the shaft to allow the housing to move in six degrees of freedom relative to the shaft; and the first toe portion is rotateably joined with the second toe portion by a spherical split ball shell (1041, 1048) disposed within the ankle housing; the shaft comprises a plurality of lumens (210, 214) extending from the proximal end to the distal end of the shaft, the plurality of lumens (210, 214) comprising a suction lumen connected with the at least one suction port of one of the first and second toe portions (1042, 1046); and a distal end of the shaft comprises a shaft face connected with the ankle, the plurality of lumens (210, 214) connected with corresponding ports of the shaft face, the corresponding ports disposed adjacent to the connection of the shaft face with the ankle. a shaft having a proximal end and a distal end, the shaft sized to allow insertion through an endoscopic cannula; a manipulable foot comprising an ankle, a first toe portion, and a second toe portion, the ankle connected with the distal end of the shaft, the first and second toe portions (1042, 1046) connected with the ankle, each toe portion (1042, 1046) comprising at least one suction port to apply suction to the target tissue during stabilization, the first toe portion and second toe portion rotateable to a first arrangement wherein the foot is insertable through the endoscopic cannula; and a tension cable passing through the shaft wherein applying tension to the cable locks the ankle in position; the tissue stabilizer characterised in that: the ankle comprises (i) a housing and (ii) an adjustable neck comprising a series of interlocking balls and intermediate socket rings, the adjustable neck connected with the housing and the shaft to allow the housing to move in six degrees of freedom relative to the shaft; and the first toe portion is rotateably joined with the second toe portion by a spherical split ball shell (1041, 1048) disposed within the ankle housing; the shaft comprises a plurality of lumens (210, 214) extending from the proximal end to the distal end of the shaft, the plurality of lumens (210, 214) comprising a suction lumen connected with the at least one suction port of one of the first and second toe portions (1042, 1046); and a distal end of the shaft comprises a shaft face connected with the ankle, the plurality of lumens (210, 214) connected with corresponding ports of the shaft face, the corresponding ports disposed adjacent to the connection of the shaft face with the ankle. the ankle comprises (i) a housing and (ii) an adjustable neck comprising a series of interlocking balls and intermediate socket rings, the adjustable neck connected with the housing and the shaft to allow the housing to move in six degrees of freedom relative to the shaft; and the first toe portion is rotateably joined with the second toe portion by a spherical split ball shell (1041, 1048) disposed within the ankle housing; the shaft comprises a plurality of lumens (210, 214) extending from the proximal end to the distal end of the shaft, the plurality of lumens (210, 214) comprising a suction lumen connected with the at least one suction port of one of the first and second toe portions (1042, 1046); and a distal end of the shaft comprises a shaft face connected with the ankle, the plurality of lumens (210, 214) connected with corresponding ports of the shaft face, the corresponding ports disposed adjacent to the connection of the shaft face with the ankle.