Arm attachment for retractor and retractor blades

A system for engagement of a retractor arm to a support arm comprising:

• a connector attached at an end of a support arm, the connector comprising:
• a housing extending from a proximal end to a distal end, the housing including a receptacle adjacent to the distal end;
• a holder block movably disposed in the housing, the holder block adjustable between a retracted position where a tip of the holder block is outside of the receptacle and a holding position where the tip is at least partially within the receptacle;
• and
• a bumper block slidable into a compressed position and away from the holder block;
• and
• a retraction device engageable with the connector, the retraction device including a post disposed thereon, the post comprising:
• a head;
• and
• a shaft extending from the head, the shaft adapted to be received in the receptacle,
• wherein, when the shaft is loaded into the receptacle of the housing, the connector limits movement of the retraction device along a longitudinal axis of the shaft, and
• wherein, when the shaft is loaded into the receptacle of the housing and the head of the post is rotated such that the head applies force to a surface of the connector, the retraction device is rotatably fixed relative to the connector.

A system for engagement of a retractor arm to a support arm comprising:

• a connector attached at an end of a support arm, the connector comprising:
• a housing extending from a proximal end to a distal end, the housing including a receptacle adjacent to the distal end;
• and
• a holder block movably disposed in the housing, the holder block adjustable between a retracted position where a tip of the holder block is outside of the receptacle and a holding position where the tip is at least partially within the receptacle;
• and
• a retraction device engageable with the connector, the retraction device including a post disposed thereon, the post comprising:
• a head;
• and
• a shaft extending from the head, the shaft adapted to be received in the receptacle,
• wherein, when the shaft is loaded into the receptacle of the housing, the connector limits movement of the retraction device in a longitudinal axis of the shaft,
• wherein, when the shaft is loaded into the receptacle of the housing and the head of the post is rotated such that the head applies force to a surface of the connector, the retraction device is rotatably fixed relative to the connector, and
• wherein the post further comprises a threaded base disposed in an opening of the retraction device, the threaded base having a bore defined by an inner threaded surface such that a threaded surface of the shaft is rotatably disposed in the bore.

A method of securing a retractor frame or a hand-held blade to a support arm comprising:

• loading a post of the retractor frame or hand-held blade into a receptacle on a connector of the support arm to move a holder block into part of the receptacle such that the post is held in the connector while being freely rotatable in the connector;
• and
• rotating a head of the post in a first direction until a first gripping surface of the connector engages a second gripping surface of the post, thereby rotationally fixing the post to the connector,
• wherein rotating the head includes engaging a first set of teeth on the connector with a second set of teeth on the retractor frame or the hand-held blade and engaging a third set of teeth on the head of the post with a fourth set of teeth on the connector.