Knee jerk reflex detection device for bedridden patient

The utility model discloses a knee jerk reflex detection device for a bedridden patient. Comprising a lower limb supporting plate and an angle measuring plate which is used for measuring the movement range of kicking the legs of the bedridden patient forwards and upwards when the knees of the bedridden patient are tapped. The lower limb supporting plate comprises a front supporting plate and a rear supporting plate which are connected to form an inverted V shape; the upper end surface of the front supporting plate forms a front inclined surface for supporting the shanks of the bedridden patient; a rear inclined surface for supporting the thighs of the bedridden patient is formed on the upper end surface of the rear supporting plate; the rear upper edge of the front inclined surface is connected with the front upper edge of the rear inclined surface to form a popliteal space supporting part; the angle measuring plate is vertically connected to the left side or the right side of the front inclined face, angle m