FISH FIXATION DEVICE FOR HIGH PRECISION INVASIVE MANIPULATIONS Russian patent published in 2023 - IPC A61D3/00 A61B90/10 

FIELD: fish testing.

SUBSTANCE: device includes a lodgement consisting of two symmetrical elongated parts. The symmetrical parts are adapted to fix the fish between them. Each of their symmetrical parts has elongated recesses inside the lodgment for fixing the fish. The lodgement has a first end and a second end. The lodgement is made with the first hole for the mouth located at the first end. In each of the symmetrical parts of the lodgement there are second holes for eyes and gill covers located near the first end. The lodgement is made with circulation holes located along the lodgement in each of the symmetrical parts. Circulation holes are adapted for water access along the fish body. The lodgement contains a third hole for the detecting elements. The device has a tripod with a holder for the lodgement. The tripod is made with the possibility of moving the lodgement and placing it into the water.

EFFECT: testing of fish of different sizes and shapes.

15 cl, 8 dwg, 4 ex