A suspension ball joint includes a base cap, an interior of which accommodates a bearing socket, a ball stud, a restriction unit disposed on a top of the bearing socket, and an elastic unit disposed on a top of the restriction unit. A cover unit is disposed on a top of the elastic unit. The bearing socket is made of metal and tightly engaged with the base cap, thereby increasing the strength and preventing the bearing socket from rubbing against the base cap while operating the ball stud. When the restriction unit, the elastic unit, and the cover unit are sequentially arranged within the interior of the base cap, the concatenation of these units prevents improper pressing forces, thereby preventing the ball stud from rubbing against the bearing socket. Thus, the service life and the durability of the suspension ball joint are improved.

The present disclosure relates to a holding controller, and, in particular, to a holding controller that can adjust a fixing force for holding an object to be fixed such as a medical device, thus making it easy to alter the position and angle of the object to be fixed in various situations, the holding controller including a holding body having a ball part of a ball joint coupled to an object to be fixed, provided inside a front end, and configured to control a movement of the ball part, in which the holding body includes a fixing pressurization member configured to come into contact with the ball part, an elastic member configured to transmit force forward to the fixing pressurization member via elastic force, and a fixing controller configured to contract the elastic member backward or extend the elastic member forward.

A universal joint includes a seat body, a cover body, a damping member, and an elastic member. The cover body is fixed on the seat body and the cover body and the seat body form a cavity together. The damping member and the elastic member are respectively located on opposite sides of the cavity. The elastic member is fixed on the seat body and maintained below the cover body. The damping member is fixed on the cover body and maintained above the seat body. The universal joint of the present disclosure has the beneficial effect of structural stability, avoiding the problem of insufficient clamping force or even failure.