DEVICE FOR LABORATORY ANIMALS SITTING AND FIXATION Russian patent published in 2017 - IPC A61D99/00 

FIELD: veterinary medicine.

SUBSTANCE: device consists of a case, a fixing assembly and a fastening unit and a protective seal of the structure. At that, the case comprises a cylindrical body connected to the head fairing and then to the head mask on one hand and on the other hand - to the shank and the case lid, connected to each other by a bayonet connection, a pusher rod located along the common central axis of the case body and lid, and connected to the pusher with one end, and to the pusher handle with the second end. An attachment point for animal's body position contains a retainer bracket welded to the outside of the case lid at a distance from its center, as well as the retainer spring and bar put on the pusher rod. At that the spring rests coaxially in the center of the case lid outside with one end, and in the retainer bar - with the other. The fastening and protective sealing assembly consists of coaxial internal holder with diametrically opposite bayonet grooves cut out on the end face for movable connection with the sitting case and an outer flange of the protective housing with three circumferential grooves cut out on the end surface, with rubber sealing rings in the extreme grooves and a fixing screw in the middle groove fixing the protective housing on the outer flange. The outer flange is fitted with a rubber sealing gasket. The inner holder and the outer flange of the protective housing are welded to the outside of the inhalation chamber body coaxially with the seed windows present therein.

EFFECT: use of the invention will reliably fix the animal during long-term experiments.

12 cl, 9 dwg