Abstract: Disclosed herein is a hydrogel composition that includes a crosslinked collagen polymer, a carboxymethyl cellulose derivative, an aqueous sodium chloride solution, a humectant, and an antimicrobial agent. The crosslinked collagen polymer has collagen, a hydrophilic polyether, and a dicarbamate group linking the collagen to the hydrophilic polyether. The carboxymethyl cellulose derivative is selected from the group consisting of carboxymethyl cellulose, an alkali metal salt of carboxymethyl cellulose, an ammonium salt of carboxymethyl cellulose, and combinations thereof. The humectant is selected from the group consisting of glycerin, propylene glycol, and a combination thereof. The antimicrobial agent is a combination of glycine betaine and polyhexamethylene biguanide hydrochloride.

Abstract: Disclosed herein is a polyurethane foam sponge produced by the steps of a) providing an hydrophobic polyol which has six hydroxyl groups, b) providing a hydrophilic diisocyanate obtained by reacting a diisocyanate with a hydrophilic polyether diol, c) reacting the hydrophobic polyol with the hydrophilic diisocyanate to obtain a prepolymer which includes 3 to 6 isocyanate groups, and d) mixing the prepolymer with a hydrophilic polyether polyol, a blowing agent, an end-capping agent, a reinforcing agent, and a catalyst to obtain the polyurethane foam sponge. A wound dressing including the polyurethane foam sponge is also disclosed.

Abstract: An exemplary portable electronic device includes a bottom cover, a top cover, an electronic module, and elastic washers. The top cover engages with the bottom cover to define a space therebetween. The electronic module is received in the space. Poles protrude up from the bottom cover. The elastic washers are fixed on the electronic module. A through hole is defined in each of the washers. The poles respectively extend through the through holes of the washers, and opposite ends of each of the washers respectively elastically abut the top cover and the bottom cover.

Abstract: An optical recording apparatus includes a traverse, a control circuit board, a shield substrate and an flexible flat cable (FFC). The traverse includes a spindle motor for rotating an optical disc and an optical pickup head for reading and/or writing the optical disc, the optical pickup head moves along a radial direction of the optical disc when reading and/or writing the optical disc. The FFC electrically connects the optical pickup head and the control circuit board and transmits signals between them, and a portion of the FFC adjacent to the second end is bent to facing the shield substrate. The shield substrate includes at least two limiting members, and the at least two limiting members are positioned at two opposite sides of the portion of the FFC facing the shield substrate to enable the portion of the FFC facing the shield substrate to move along the first direction.

Abstract: An antenna mounting structure of an electronic device includes a casing and an antenna in the casing. The antenna includes a signal receiving portion and a first securing member connecting the signal receiving portion. The first securing member defines a through hole. The casing includes a first pin, a first catch near the first pin, and a first rib extending from the first pin. The first pin extends through the through hole of the first securing member of the antenna. The first rib supports the first securing member. The first catch fixedly clasps the first securing member on the first pin and the first rib.

Abstract: An exemplary display unit includes a rear cover, a bracket disposed on the rear cover, a display mounted on the bracket, and a front cover secured to the rear cover to sandwich the display and the bracket between the front cover and the rear cover. The bracket includes a plate supporting the display, a pair of bulges protruding upwardly from two opposite sides of the plate and a pair of tabs extending upwardly from the bulges, respectively. The pair of tabs press against two opposite lateral faces of the display to dissipate static electricity on the display to ground.

Abstract: An electronic device includes a motherboard and a heat dissipating plate. The motherboard includes a base. The base includes a number of ports and an electronic element. The heat dissipating plate includes a substrate and a number of fasteners extending out from the substrate for engaging with the number of ports of the motherboard. The substrate defines a bulging cavity for engaging with and dissipating heat from the electronic element.

Abstract: An exemplary electronic device includes a front cover, a display screen and two speakers located on the back surface, and a back plate abutting against the display screen and two speakers. Five fasteners extend backwardly from a back surface of the front cover. Each of the fasteners includes a connecting plate extending backwardly from the back surface and a top plate formed at a free end of the connecting plate. Five latching tabs are formed on the back plate corresponding to the fasteners. Each of the latching tabs includes a latching tip latched between the top plate of the corresponding fastener and the back surface of the front cover. The back plate abuts against the display screen and the two speakers, thus mounting the display screen and the two speakers on the front cover.

Abstract: An electronic device includes a housing, a circuit board, an infrared receiving device and a protection cover. The protection cover is engaged in the window of the housing to cover the infrared receiving device. The protection cover includes a blocking plate, a side wall extending outwardly from the blocking plate, and two clasping ears respectively located at two opposite sides of the side wall. The blocking plate is attached to the housing, and the two clasping ears of the protection cover provide a permanent means of securing the protection cover to the housing.

Abstract: A display unit includes a lower cover, a display disposed on the lower cover, a metal bracket securing the display on the lower cover and an upper cover fixed to the lower cover to sandwich the display and the bracket between the lower cover and the upper cover. The bracket includes a plate pressing a back side of the display towards the lower cover and a tab contacting a lateral face of the display. The bracket is grounded.

Abstract: An exemplary electronic device includes a front cover, a display screen and two speakers located on the back surface, and a back plate abutting against the display screen and two speakers. Five fasteners extend backwardly from a back surface of the front cover. Each of the fasteners includes a connecting plate extending backwardly from the back surface and a top plate formed at a free end of the connecting plate. Five latching tabs are formed on the back plate corresponding to the fasteners. Each of the latching tabs includes a latching tip latched between the top plate of the corresponding fastener and the back surface of the front cover. The back plate abuts against the display screen and the two speakers, thus mounting the display screen and the two speakers on the front cover.

Abstract: An exemplary portable electronic device includes a bottom cover, a top cover, an electronic module, and elastic washers. The top cover engages with the bottom cover to define a space therebetween. The electronic module is received in the space. Poles protrude up from the bottom cover. The elastic washers are fixed on the electronic module. A through hole is defined in each of the washers. The poles respectively extend through the through holes of the washers, and opposite ends of each of the washers respectively elastically abut the top cover and the bottom cover.

Abstract: An exemplary portable electronic device includes a bottom cover and a top cover engaging with the bottom cover. Recesses are defined in the bottom cover. Strips are protruded down from the top cover and corresponding to the recesses of the bottom cover. The strips of the top cover fittedly engage in the recesses of the bottom cover to assemble the bottom cover and the top cover together. The assembled bottom cover and top cover cooperatively form a shell, and the strips and the recesses are located at an inside of the shell.

Abstract: An optical recording apparatus includes a traverse, a control circuit board, a shield substrate and an flexible flat cable (FFC). The traverse includes a spindle motor for rotating an optical disc and an optical pickup head for reading and/or writing the optical disc, the optical pickup head moves along a radial direction of the optical disc when reading and/or writing the optical disc. The FFC electrically connects the optical pickup head and the control circuit board and transmits signals between them, and a portion of the FFC adjacent to the second end is bent to facing the shield substrate. The shield substrate includes at least two limiting members, and the at least two limiting members are positioned at two opposite sides of the portion of the FFC facing the shield substrate to enable the portion of the FFC facing the shield substrate to move along the first direction.

Abstract: An antenna mounting structure of an electronic device includes a casing and an antenna in the casing. The antenna includes a signal receiving portion and a first securing member connecting the signal receiving portion. The first securing member defines a through hole. The casing includes a first pin, a first catch near the first pin, and a first rib extending from the first pin. The first pin extends through the through hole of the first securing member of the antenna. The first rib supports the first securing member. The first catch fixedly clasps the first securing member on the first pin and the first rib.

Abstract: An exemplary display unit includes a rear cover, a bracket disposed on the rear cover, a display mounted on the bracket, and a front cover secured to the rear cover to sandwich the display and the bracket between the front cover and the rear cover. The bracket includes a plate supporting the display, a pair of bulges protruding upwardly from two opposite sides of the plate and a pair of tabs extending upwardly from the bulges, respectively. The pair of tabs press against two opposite lateral faces of the display to dissipate static electricity on the display to ground.

Abstract: A display unit includes a lower cover, a display disposed on the lower cover, a metal bracket securing the display on the lower cover and an upper cover fixed to the lower cover to sandwich the display and the bracket between the lower cover and the upper cover. The bracket includes a plate pressing a back side of the display towards the lower cover and a tab contacting a lateral face of the display. The bracket is grounded.

Abstract: An electronic device includes a housing, a circuit board, an infrared receiving device and a protection cover. The protection cover is engaged in the window of the housing to cover the infrared receiving device. The protection cover includes a blocking plate, a side wall extending outwardly from the blocking plate, and two clasping ears respectively located at two opposite sides of the side wall. The blocking plate is attached to the housing, and the two clasping ears of the protection cover provide a permanent means of securing the protection cover to the housing.

Abstract: An electronic device includes at least an electric wire, a first cover, and a second cover. The electric wire is mounted between the first cover and the second cover. The first cover includes a wire retainer integrally forming a restraining portion to fix the electric wire on the first cover. The second cover includes a hook securely engaged with the wire retainer of the first cover to fix the second cover on the first cover.

Abstract: An exemplary display unit includes a lower cover, an upper cover, and a display sandwiched between the upper cover and the lower cover. The lower cover includes a lower plate for supporting the display thereon, a first clip to fix the display on the lower plate, a bracket, and a rib. The upper cover includes an upper plate adjoined to the lower plate to cover the display, two fins pressing against the first clip, a second clip secured to the bracket, and a beam engaged with the rib.