Abstract: The present invention relates to a layered material for mucoadhesion, comprising a modified acrylic polymer and hydroxypropyl methylcellulose, wherein the weight ratio of the modified acrylic polymer: hydroxypropyl methylcellulose is 1:4 to 4:1, and the layered material has a thickness of 0.0001 millimeters to 100 millimeters. The layered material of the present invention has mucoadhesion ability, so it can be prepared into a patch or a needle patch and help the fixation of the patch or the needle patch, and this is advantageous for the controlled-release of drugs. The present invention also relates to a patch comprising the layered material. In addition, the present invention relates to a microneedle patch comprising a needle layer, a base layer and a backing layer, wherein the backing layer comprises the aforementioned layered material and benefits the fixation of the microneedle patch. This microneedle patch is suitable for lesions on mucosa.

Abstract: Provided is a hydrogel composition, which comprises a modified HA, PEGDA and water; wherein, based on a total weight of the hydrogel composition, a content of the modified HA is 1 wt % to 7 wt % and a content of PEGDA is 43 wt % to 49 wt %; the modified HA is obtained by modifying HA with methacrylic anhydride; an average molecular weight of PEGDA is 1 kDa to 10 kDa. The hydrogel composition of the present invention has good compatibility of raw materials, which does not cause HA precipitation, and a hydrogel material produced therefrom simultaneously has good mechanical properties, good swell capability and good biocompatibility, such that the hydrogel material can be applied in many fields.

Abstract: Provided is a microneedle patch comprising a substrate part and multiple needle parts protruding from the substrate part. The substrate part consists of a diffusion-proof layer and a base, and each needle part consists of a needle tip, a diffusion-proof layer and a base. The diffusion-proof layer of each needle part is formed between the needle tip and the base of the corresponding needle part. The diffusion-proof layer of the substrate part and the diffusion-proof layer of needle part are one-piece structures, and so are the base of the substrate part and the base of the needle part. The diffusion-proof layer of the microneedle patch can prevent the active ingredients from diffusing to the base, limit the active ingredients to the needle tip and control the carrying quantity thereof.

Abstract: A receptacle connector includes an insulating body, an isolation plate molded in the insulating body, a plurality of first terminals, a plurality of second terminals and an insulating housing. The plurality of the first terminals are molded in the insulating body. The insulating body has a plurality of limiting protrusions protruding downward from a lower surface of the insulating body. The plurality of the second terminals are mounted to the lower surface of the insulating body. The plurality of the second terminals are disposed corresponding to intervals of the plurality of the limiting protrusions. The insulating housing is molded outside the insulating body, the plurality of the first terminals, the plurality of the second terminals and the isolation plate.

Abstract: A receptacle connector includes an insulating body, an isolation plate molded in the insulating body, a plurality of first terminals, a plurality of second terminals and an insulating housing. The plurality of the first terminals are molded in the insulating body. The insulating body has a plurality of limiting protrusions protruding downward from a lower surface of the insulating body. The plurality of the second terminals are mounted to the lower surface of the insulating body. The plurality of the second terminals are disposed corresponding to intervals of the plurality of the limiting protrusions. The insulating housing is molded outside the insulating body, the plurality of the first terminals, the plurality of the second terminals and the isolation plate.

Abstract: An electrical connector includes an insulating body, a conductive terminal assembly, a connection terminal assembly and an outer shell. A middle portion of a front surface of the insulating body is recessed rearward to form an insertion slot. A middle portion of a rear surface of the insulating body is recessed forward to form a receiving groove. The conductive terminal assembly is assembled to the insulating body. The conductive terminal assembly includes a plurality of conductive terminals, and a first base body fastened to the plurality of the conductive terminals. The connection terminal assembly is assembled to the insulating body. The connection terminal assembly includes a plurality of connection terminals, and a second base body fastened to the plurality of the connection terminals. The outer shell surrounds the insulating body.

Abstract: An electrical connector includes an insulating body, a conductive terminal assembly, a connection terminal assembly and an outer shell. A middle portion of a front surface of the insulating body is recessed rearward to form an insertion slot. A middle portion of a rear surface of the insulating body is recessed forward to form a receiving groove. The conductive terminal assembly is assembled to the insulating body. The conductive terminal assembly includes a plurality of conductive terminals, and a first base body fastened to the plurality of the conductive terminals. The connection terminal assembly is assembled to the insulating body. The connection terminal assembly includes a plurality of connection terminals, and a second base body fastened to the plurality of the connection terminals. The outer shell surrounds the insulating body.

Abstract: An electric vehicle charging connector assembly comprises a plug connector and a receptacle connector docking with the plug connector. The plug connector includes a first insulating body, a first circuit board, a plurality of contact terminals, a first electrode unit and a first jumper unit. The receptacle connector includes a second insulating body, a second circuit board, a plurality of docking terminals, a second electrode unit and a second jumper unit. The plurality of the contact terminal of the plug connector and the plurality of the docking terminal of the receptacle connector are respectively assembled with the first circuit board and the second circuit board in an elastically embedded manner so as to simplify manufacture procedures, capable of reducing working time and manufacturing cost as well as suitable for quantity production.

Abstract: An electric vehicle charging connector device comprises a plug connector and a receptacle connector docking with the plug connector. The plug connector includes a first insulating body, a first circuit board, a plurality of contact terminals, a first electrode unit and a first jumper unit. The receptacle connector includes a second insulating body, a second circuit board, a plurality of docking terminals, a second electrode unit, a second jumper unit and a waterproof ring. The first jumper unit of the plug connector and the second jumper unit of the receptacle connector are respectively secured on the first electrode unit and the second electrode unit by a riveting way which allows a firm electrode connection and low probability of looseness between the plug connector and the receptacle connector so as to ensure a stability and accuracy of electricity transmission and a battery charge integrity.