Abstract: The present disclosure provides a highly practical cryovial, which relates to the technical field of the cryovial. The cryovial comprises an inner tube, a transparent outer tube, a limit snap ring, a liquid control mechanism arranged inside the inner tube, a protection mechanism arranged on the transparent outer tube, and a sealed liquid taking mechanism arranged on the inner tube, wherein the liquid control mechanism comprises a push rod and a piston block which is movably connected with the inner tube, first spiral holes of the same size are formed at the corresponding positions of the bottom ends of the inner tube and the transparent outer tube, and the push rod is movably connected with the two first spiral holes respectively.

Abstract: The present disclosure relates to the technical field of medical equipment, and discloses an articulating endoscopic cutter stapler and universal assembly for stapling, comprising a proper, wherein the surface of the proper is slidably connected with a reset ring and formed with a slot, the surface of the reset ring is provided with a sliding pin which is placed into the slot, and a safety pin is arranged at one end of the surface of the proper. The present disclosure can better control the anvil assembly to improve the stability of stapler during suturing of wound and to improve the quality of surgical suturing. The angle of suturing assembly of stapler can also be adjusted to the specific position of the wound, so that the range of application of stapler can be extended.

Abstract: The present disclosure provides a PCR plate sealing film with good sealing effect, and relates to the technical field of experimental supplies, wherein the PCR plate sealing film comprises a supporting main plate and soft sealing films; L-shaped expansion rods are fixedly mounted on one end surface of the supporting main plate respectively; lateral-position limiting bars are fixedly mounted at lower ends of the two L-shaped expansion rods; a plurality of sealing bulges are integrally arranged on lower surfaces of the soft sealing films respectively; and the soft sealing films are located below the supporting main plate. The PCR plate sealing film provided by the present disclosure is fixed by a fixing component, to prevent the soft sealing films from moving up and down after being mounted.

Abstract: The present disclosure provides a highly sealed PCR single tube, which relates to the technical field of the PCR single tube. The PCR single tube comprises a sealing tube, wherein the sealing tube is movably placed inside a storage box, four limited posts are fixedly connected on an upper surface of the storage box, a box cover is movably connected at upper ends of the limited posts, and an auxiliary component is fixedly installed inside the box cover. The sealing tube comprises a stud that is movably connected with a screw tube, four movable blocks are movably installed inside a lower side of the screw tube, and a second hose is fixedly connected outside the screw tube. The sealing tube comprises the stud that is movably connected with the screw tube, so that the stud could move up and down through rotation.