Abstract: Provided are a pressure-pump cartridge and a pressure pump, where the pressure-pump cartridge includes a cylinder, where the cylinder has a first chamber, a piston chamber and a second chamber hat are in communication in sequence, and the piston chamber is used for being in sealing fit with a piston. An end of the first chamber remote from the piston chamber is provided with a first opening allowing entry of the piston, and during installation, the piston enters the first chamber by the first opening and enters the piston chamber after passing through the first chamber, and meanwhile, the first chamber is configured to be in a clearance fit with the piston, such that the size of the first chamber is larger than that of the piston.

Abstract: Disclosed are a channel device for surgery and a trigger structure. It aims at improving the problem that the operational efficiency of existing channel devices for surgery is not high. The channel device for surgery includes: a binding cord configured to be wound around a metal net; and a binding wire configured to pass through the binding cord and tighten up the binding cord, so as to compress the metal net, or configured to be pulled away from the binding cord, so as to loosen the binding cord and the metal net. In the trigger structure, different first locking portions are configured to cooperate with a first engaging portion, so as to drive the trolley to slide intermittently relative to the handle, such that a second engaging portion cooperates with different second locking portions, hereby locking the sliding trolley in different positions on the handle.

Abstract: A door lock device is provided. The door lock device includes a panel and a mounting base. The panel is arranged opposite to the mounting base and is connected with the mounting base. The mounting base includes a recess located in a middle of one side of the mounting base and on a first surface of the mounting base close to the panel, and the recess and the panel form a handle structure.

Abstract: Examples frame synchronization methods and apparatus for image signal processing are described. One example method includes receiving a frame synchronization instruction sent by a first image collection apparatus of a terminal. The frame synchronization instruction is separately sent to a second image collection apparatus and a third image collection apparatus of the terminal, so that the second image collection apparatus, the third image collection apparatus, and the first image collection apparatus synchronously output frame image data. The example method further includes receiving the frame image data synchronously sent by the first image collection apparatus, the second image collection apparatus, and the third image collection apparatus.

Abstract: Examples frame synchronization methods and apparatus for image signal processing are described. One example method includes receiving a frame synchronization instruction sent by a first image collection apparatus of a terminal. The frame synchronization instruction is separately sent to a second image collection apparatus and a third image collection apparatus of the terminal, so that the second image collection apparatus, the third image collection apparatus, and the first image collection apparatus synchronously output frame image data. The example method further includes receiving the frame image data synchronously sent by the first image collection apparatus, the second image collection apparatus, and the third image collection apparatus.