Mechanisms for securing a plurality of cooperating components together

A mechanism for coupling a first structure to a second structure, comprising:

• a first member having a first end portion for coupling to the first structure and a second end portion opposite the first end portion, wherein the second end portion includes an opening to a cavity disposed between the first and second end portions, and wherein the second end portion includes an engagement member;
• and
• a second member having a first end portion and a second end portion, wherein the first end portion of the second member includes a substantially spherical configuration, wherein the first end portion is configured to be received into the cavity through the opening in the first member, and wherein the second end portion of the second member includes an engagement structure for cooperating with the engagement member.

A mechanism for coupling a suitable stabilizing structure to an arm assembly, the stabilizing structure being configured to secure one or more medical devices for performing a medical procedure, and the arm assembly being secured adjacent to a patient's position, the mechanism comprising:

• a first member having a first end portion for coupling to the stabilizing structure and a second end portion opposite the first end portion, wherein the second end portion includes an opening to a cavity disposed between the first and second end portions, and wherein the second end portion includes an engagement member;
• and
• a second member having a first end portion and a second end portion, wherein the first end portion of the second member is configured to be received into the cavity through the opening in the first member, and wherein the second end portion of the second member includes an engagement structure for cooperating with the engagement member.