2results about How to "Feel relaxed" patented technology

This utility model discloses a backrest lock, including a base plate. A locking hook and a locking plate are movably disposed on the base plate. The end of the locking plate has a pull head for connecting and cooperating with an external car pull rod, so that when the pull rod is pulled, the locking plate swings to release the restriction on the swing of the locking hook. The inner wall of the locking hook has a positioning strip for synchronously moving along the swing trajectory of the locking hook when it swings. The inner wall of the base plate has a positioning structure that works in conjunction with the positioning strip to guide the swing trajectory of the locking hook and limit the direction of the hook's swing, and an auxiliary structure that works in conjunction with the positioning structure to limit the wobbling or loosening of the locking hook when it is subjected to vibration and to improve the smoothness of the hook's swing. This utility model solves the problems of unstable hook swing trajectory and insufficient positioning accuracy in traditional backrest locks, easy loosening or wobbling of the locking hook under vibration, and insufficient smoothness of the hook's swing leading to operational jamming.

The invention discloses a drainage fixing device for a subscalp puncture Oma sac, namely a liquid storage sac. The depth of the medical stainless steel puncture needle can be adjusted within a safe range through a progressive thread type knob, the medical stainless steel puncture needle is provided with a side hole, and the drainage cavity is made of a medical silica gel material, is tightly attached to the scalp surface through a soft liner, is firmly fixed through a surrounding type fixing belt and is connected with a drainage tube and a drainage bottle. The puncture needle is punctured into the Oma bag, namely the liquid storage bag, and is adjusted to a proper depth through the progressive threaded knob, and liquid in the bag is drained into a drainage cavity through a side hole of the puncture needle and finally collected into a drainage device. In this way, the problem that the liquid storage bag puncture needle is difficult to fix can be solved. By means of the device, the liquid storage bag can be rapidly punctured, the drainage bottle can be rapidly connected, multiple times of puncture of the liquid storage bag caused by adjustment and re-fixation of the puncture needle are reduced, intracranial infection caused by scalp infection is further reduced, pain of a patient is reduced, time consumed by clinical neurosurgeons is reduced, and tedious work caused by multiple times of puncture is reduced.