The invention discloses a puncture bag for
cartilage destruction and sampling of rabbit knee joints. The puncture bag comprises a puncture sleeve, a puncture needle and an
injector, wherein the puncture needle can be inserted into the puncture sleeve, the needle
tail end of the puncture needle is fixedly sleeved with a puncture needle
handle, the needle head end of the puncture needle extends intothe sleeve and penetrates through the sleeve, the needle
tail of the puncture needle is connected with a needle plug, a fixing block is fixed to the needle head end, penetrating out of the puncture sleeve, of the puncture needle, a plurality of rotating shafts are fixed to the outer circumferential wall of the fixing block,
cartilage surface destroying plates are rotatably connected to the rotating shafts, and a plurality of
cartilage surface destroying nail thorns are fixedly connected to the
cartilage surface destroying plates. The puncture bag has the beneficial effects that the cartilagesurfaces of the knee joints can be destroyed by opening the umbrella-shaped
cartilage surface destroying plates of the
cartilage surface destroying nail thorns, the
knee joint tissue destroying and sampling efficiency is improved, the minimally invasive operation ensures that the
pollution is avoided, meanwhile, the damage area and the material taking size are controllable, and the scientificity and
standardization are improved.