Abstract: A planar array antenna structure includes a substrate, an array antenna, and a bottom ground portion. The substrate has a front surface and a rear surface. The array antenna is composed of a plurality of antenna units and disposed on the front surface of the substrate in a symmetrical and polygonal arrangement. A spaced slot is formed between every two antenna units. The bottom ground portion is polygonal and arranged on the rear surface of the substrate. The bottom ground portion has a plurality of included angles thereon, and one notch is formed between two included angles and the notches are correspondingly arranged to the spaced slots. Accordingly, the planar array antenna structure is used to generate high-gain radiation variations, effectively restrain the isolation between the radiators, and significantly increase overall performance of the antenna.

Abstract: A paper-pressing tray mounting apparatus for a printing apparatus includes a first paper support tray, a second paper support tray mounted on the first paper support tray, a paper-pressing tray pivotally mounted on the second paper support tray, and a sliding panel mounted on the second paper support tray. When the second paper support tray moves toward the first paper support tray along a first direction, the sliding panel moves on the second paper support tray along a second direction opposite to the first direction, the sliding panel abuts against the paper-pressing tray, the paper-pressing tray rotates toward the first paper support tray around the second paper support tray, the second paper support tray is accommodated in the first paper support tray, and the paper-pressing tray is accommodated between the first paper support tray and the second paper support tray.

Abstract: A paper-pressing tray mounting apparatus for a printing apparatus includes a first paper support tray, a second paper support tray mounted on the first paper support tray, a paper-pressing tray pivotally mounted on the second paper support tray, and a sliding panel mounted on the second paper support tray. When the second paper support tray moves toward the first paper support tray along a first direction, the sliding panel moves on the second paper support tray along a second direction opposite to the first direction, the sliding panel resists against the paper-pressing tray, the paper-pressing tray rotates toward the first paper support tray around the second paper support tray, the second paper support tray is accommodated in the first paper support tray, and the paper-pressing tray is accommodated between the first paper support tray and the second paper support tray.

Abstract: A rotating mechanism for a printing apparatus includes a fixing member and a rotating member fixed on the fixing member. The fixing member includes a rotating pole and a stop portion on one side of the rotating pole. The rotating member includes a rotating portion and a resisting portion extended from a bottom of the rotating portion. The rotating portion is fixed between the rotating pole and the stop portion and abuts the rotating pole to fix the rotating member on the fixing member. The rotating portion rotates along a first direction relative to the rotating pole between an original position and a first position. Wherein in the first direction to a first position, the rotating portion is parallel to the stop portion and the resisting portion abuts the stop portion to prevent the rotating portion rotating along the first direction relative to the rotating pole.

Abstract: An adjustable vertebral spacer includes a spacer body, a movable member coupled to the spacer body, an adjustment ring mounted on the spacer body and rotatable to move the movable member and to further adjust the combined height of the spacer body and the movable member, a lock ring mounted on the spacer body for locking the movable member to the adjustment ring, and a top endplate coupled to the movable member at the top and tiltable to fit the angle of the adjacent upper vertebral body during surgery operation.

Abstract: A rotating mechanism for a printing apparatus includes a fixing member and a rotating member fixed on the fixing member. The fixing member includes a rotating pole and a stop portion on one side of the rotating pole. The rotating member includes a rotating portion and a resisting portion extended from a bottom of the rotating portion. The rotating portion is fixed between the rotating pole and the stop portion and abuts the rotating pole to fix the rotating member on the fixing member. The rotating portion rotates along a first direction relative to the rotating pole between an original position and a first position. Wherein in the first direction to a first position, the rotating portion is parallel to the stop portion and the resisting portion abuts the stop portion to prevent the rotating portion rotating along the first direction relative to the rotating pole.

Abstract: A vertebral fixation plate assembly for insertion into the resection site between two vertebrae of a patients vertebral column and fixation to front or lateral side of the two adjacent vertebral bodies above and below the resection site by means of surgical implantation is disclosed to include a fixation plate that has a plurality of round holes and elongated holes and an opening on the middle, a plurality of bone screws respectively inserted through the round holes and elongated holes for fastening the fixation plate to the patient's vertebral column, and a cage affixed to the opening on the fixation plate and holding holes cut through the periphery for bone fusion and grow. The cage is linked to a vertebral spacer for artificial vertebrae by means of bone fusion to prevent vertebral sinking or slipping of the vertebral spacer and to improve bone fusion efficiency.

Abstract: An adjustable vertebral spacer includes a spacer body, a movable member coupled to the spacer body, an adjustment ring mounted on the spacer body and rotatable to move the movable member and to further adjust the combined height of the spacer body and the movable member, a lock ring mounted on the spacer body for locking the movable member to the adjustment ring, and a top endplate coupled to the movable member at the top and tiltable to fit the angle of the adjacent upper vertebral body during surgery operation.

Abstract: An adjustable vertebral spacer includes a spacer body, a movable member coupled to the spacer body, an adjustment ring mounted on the spacer body and rotatable to move the movable member and to further adjust the combined height of the spacer body and the movable member, a lock ring mounted on the spacer body for locking the movable member to the adjustment ring, and a top endplate coupled to the movable member at the top and tiltable to fit the angle of the adjacent upper vertebral body during surgery operation.

Abstract: A vertebral fixation plate assembly for insertion into the resection site between two vertebrae of a patients vertebral column and fixation to front or lateral side of the two adjacent vertebral bodies above and below the resection site by means of surgical implantation is disclosed to include a fixation plate that has a plurality of round holes and elongated holes and an opening on the middle, a plurality of bone screws respectively inserted through the round holes and elongated holes for fastening the fixation plate to the patient's vertebral column, and a cage affixed to the opening on the fixation plate and holding holes cut through the periphery for bone fusion and grow. The cage is linked to a vertebral spacer for artificial vertebrae by means of bone fusion to prevent vertebral sinking or slipping of the vertebral spacer and to improve bone fusion efficiency.

Abstract: An adjustable vertebral spacer includes a spacer body, a movable member coupled to the spacer body, an adjustment ring mounted on the spacer body and rotatable to move the movable member and to further adjust the combined height of the spacer body and the movable member, a lock ring mounted on the spacer body for locking the movable member to the adjustment ring, and a top endplate coupled to the movable member at the top and tiltable to fit the angle of the adjacent upper vertebral body during surgery operation.