Abstract: The present invention disclosed a method for preparing of collagen having regeneration and repair effects from Wharton's Jelly mesenchymal stein cells, comprising steps of culturing the Wharton's Jelly mesenchymal stein cells in a first medium for 16 to 24 hours; replacing the first medium with a second medium for culturing the Wharton's Jelly mesenchymal stein cells for 36 to 48 hours; collecting the Wharton's Jelly mesenchymal stein cells and adding a cell lysis solution to lyse the Wharton's Jelly mesenchymal stein cells for 0.5 to 2 hours, adding an inorganic salt solution to the cell lysis solution to obtain a mixing solution for further incubation at 4° C. for 24 to 48 hours; centrifuging the mixing solution and collecting a sediment, dissolving the sediment by a preservation solution to obtain a collage.

Abstract: The present invention relates to a method for avoidance of blue light damage by using a stem cell composition. The stem cell composition comprises 10% (v/v) to 50% (v/v) of the conditioned medium of Wharton's Jelly mesenchymal stem cells. The conditioned medium of Wharton's Jelly mesenchymal stem cells is prepared by culturing Wharton's Jelly mesenchymal stem cells in a medium containing human basic fibroblast growth factors for 2 to 5 days, and collecting the medium for centrifugation and filtration.

Abstract: The present invention disclosed a method for preparing of collagen having regeneration and repair effects from Wharton's Jelly mesenchymal stein cells, comprising steps of culturing the Wharton's Jelly mesenchymal stein cells in a first medium for 16 to 24 hours; replacing the first medium with a second medium for culturing the Wharton's Jelly mesenchymal stein cells for 36 to 48 hours; collecting the Wharton's Jelly mesenchymal stein cells and adding a cell lysis solution to lyse the Wharton's Jelly mesenchymal stein cells for 0.5 to 2 hours, adding an inorganic salt solution to the cell lysis solution to obtain a mixing solution for further incubation at 4° C. for 24 to 48 hours; centrifuging the mixing solution and collecting a sediment, dissolving the sediment by a preservation solution to obtain a collage.

Abstract: A locking and unlocking nut structure contains a body including a through hole, a diameter of the through hole being larger than that of a screw rod (tube), the body also including a semi-circular recess with a starting segment and a stopping segment, the body further including a slot and an diameter-decreased screw section; a slidable block retained in the semi-circular recess and moving between the starting segment and the stopping segment, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads of the slidable block to an inner wall of the through hole is larger than an outer diameter of the screw rod (tube); while the slidable block is fixed on the stopping segment, a distance from the first threads to the diameter-decreased screw section is equal to the outer diameter of the screw rod (tube).

Abstract: A locking and unlocking nut structure contains a body including a through hole and a semi-circular recess, and the semi-circular recess having a starting segment and a stopping segment, the body further including a diameter-decreased screw section; a slidable block including a C-shaped cutout, and the C-shaped cutout including an engaging hook extending outward from a lower end thereof, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads to an inner wall of the through hole is larger than an outer diameter of the screw rod (tube); while the slidable block is fixed on the stopping segment, a distance from the first threads to the diameter-decreased screw section is equal to the outer diameter of the screw rod (tube); the screw rod (tube) including second threads to match with the diameter-decreased screw section and the first threads.

Abstract: A water stopper structure for a washing sink contains a washing sink having a large diameter hole to receive a water seat; the water seat including a larger diameter cavity and a small diameter cavity having plural outlets and a guiding orifice, the larger diameter cavity including first outer threads to screw with a screwing ring so that the water seat is fixed in the large diameter hole, the small diameter cavity including second outer threads to screw with a tube; a filter cup having plural filtering apertures and a central aperture to fit a guide bolt such that a water stopper is fixed; a water stopper including a sealing rib and a seal section; the guide bolt including a head segment and a guiding post such that the water stopper is fixed between the head segment and the guiding post of the guide bolt and under the filter cup.

Abstract: A locking and unlocking nut structure contains a body including a through hole and a semi-circular recess, and the semi-circular recess having a starting segment and a stopping segment, the body further including a diameter-decreased screw section; a slidable block including a C-shaped cutout, and the C-shaped cutout including an engaging hook extending outward from a lower end thereof, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads to an inner wall of the through hole is larger than an outer diameter of the screw rod (tube); while the slidable block is fixed on the stopping segment, a distance from the first threads to the diameter-decreased screw section is equal to the outer diameter of the screw rod (tube); the screw rod (tube) including second threads to match with the diameter-decreased screw section and the first threads.

Abstract: The present invention relates to a structural improvement of a drain pipe, which mainly consists of a flexible pipe member combined with a spiral loop at the outer periphery thereof and the interior thereof is in a smooth state, adjacent loops and two ends of the pipe member are respectively installed with a connector for being connected with a water related equipment and a water draining hole of a water draining pipeline, thereby achieving an excellent connection relation by utilizing the two connectors at two ends of the pipe member to connect the water related equipment and the water draining hole of the water draining pipeline, the configuration of the pipe member can be properly bent and adjusted according to the installation space thereby obtaining a smooth water draining effect, and after the pipe member is bent and set, the smoothness of the inner pipe wall can be kept.

Abstract: A locking and unlocking nut structure contains a body including a through hole, a diameter of the through hole being larger than that of a screw rod (tube), the body also including a semi-circular recess with a starting segment and a stopping segment, the body further including a slot and an diameter-decreased screw section; a slidable block retained in the semi-circular recess and moving between the starting segment and the stopping segment, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads of the slidable block to an inner wall of the through hole is larger than an outer diameter of the screw rod (tube); while the slidable block is fixed on the stopping segment, a distance from the first threads to the diameter-decreased screw section is equal to the outer diameter of the screw rod (tube).