Intraosseous pressure release screw

Abstract

The invention is related to the field of medical device, particularly to an intraosseous pressure release screw which not only excludes foreign matters but also facilitates intraosseous cleaning. The intraosseous pressure release screw comprises a screw rod with a central cavity disposed therein and a screw cap rotatably disposed on one end of the screw rod; the screw cap is provided with a pressure release part which communicates the central cavity with the outside; a rinsing opening is arranged on the rod section of the screw rod within the screw cap and is in communication with the central cavity; and a lockable opening is arranged on the side wall of the screw cap and can rotate with the screw cap to keep communication with the rinsing opening. As a screw cap with a pressure release part is arranged at the end of the screw rod, the food blockage of the screw rod can be prevented while the patient under treatment is eating, thereby ensuring the unobstructed pressure release. In the case of intraosseous cleaning, the screw cap is rotated to a position where the lockable opening is in communication with the rinsing opening; that is, the rinsing solution may be added to the central cavity via the rinsing opening, thus improving the therapeutic effect of core decompression.