Abstract: A medical device, a stapler, and a rotation locking mechanism, the medical device including a handheld mechanism, a connecting mechanism, and an actuator. The connecting mechanism is connected to the handheld mechanism and the actuator. The handheld mechanism is internally provided with a first rotation locking mechanism and a first transmission mechanism connected to the first rotation locking mechanism. A second rotation locking mechanism matching the first rotation locking mechanism is disposed on the connecting mechanism. When the first transmission mechanism is in a first state, the first rotation locking mechanism and the second rotation locking mechanism are in an unlocked state, such that the connecting mechanism is rotatable. When the first transmission mechanism is in a second state, the first rotation locking mechanism and the second rotation locking mechanism are in a locked state, such that the connecting mechanism is locked, thereby improving surgery safety and surgery efficiency.

Abstract: A medical device, a stapler, and a rotation locking mechanism, the medical device including a handheld mechanism, a connecting mechanism, and an actuator. The connecting mechanism is connected to the handheld mechanism and the actuator. The handheld mechanism is internally provided with a first rotation locking mechanism and a first transmission mechanism connected to the first rotation locking mechanism. A second rotation locking mechanism matching the first rotation locking mechanism is disposed on the connecting mechanism. When the first transmission mechanism is in a first state, the first rotation locking mechanism and the second rotation locking mechanism are in an unlocked state, such that the connecting mechanism is rotatable. When the first transmission mechanism is in a second state, the first rotation locking mechanism and the second rotation locking mechanism are in a locked state, such that the connecting mechanism is locked, thereby improving surgery safety and surgery efficiency.

Abstract: A rotatable tray is installed on a child seat for accommodating a container, and the rotatable tray includes a platform, a fixing base, a positioning base, a resilient component and a supporting base. The platform includes a communicating chamber, and the fixing base is fixed in the communicating chamber. The positioning base includes a first engaging portion, and the positioning base is slidably disposed in the communicating chamber. The resilient component is disposed between the fixing base and the positioning base. The supporting base is connected to the platform, an engaging base protrudes from an end of the supporting base, and a second engaging portion is disposed on the supporting base. The engaging base is pivoted in the communicating chamber so that the platform can rotate relative to the supporting base. The resilient component drives the first engaging portion to selectively engage with the second engaging portion.

Abstract: A brake device is disposed at a child carrier including a frame and at least one wheel unit that includes a hub and a plurality of spokes radiating from the hub. The brake device includes a base unit, an operable unit, a brake unit, and a positioning unit. The base unit is connected to the frame and is formed with a first guiding groove and a through hole. The operable unit is pivotally connected to the base unit and includes at least one side wall formed with a positioning hole and a second guiding groove. The brake unit is disposed slidably in the first and second guiding grooves. The positioning unit is disposed in the through hole and includes a positioning component and an elastic member elastically abutting against the positioning component.

Abstract: A rotatable tray is installed on a child seat for accommodating a container, and the rotatable tray includes a platform, a fixing base, a positioning base, a resilient component and a supporting base. The platform includes a communicating chamber, and the fixing base is fixed in the communicating chamber. The positioning base includes a first engaging portion, and the positioning base is slidably disposed in the communicating chamber. The resilient component is disposed between the fixing base and the positioning base. The supporting base is connected to the platform, an engaging base protrudes from an end of the supporting base, and a second engaging portion is disposed on the supporting base. The engaging base is pivoted in the communicating chamber so that the platform can rotate relative to the supporting base. The resilient component drives the first engaging portion to selectively engage with the second engaging portion.

Abstract: A brake device is disposed at a child carrier including a frame and at least one wheel unit that includes a hub and a plurality of spokes radiating from the hub. The brake device includes a base unit, an operable unit, a brake unit, and a positioning unit. The base unit is connected to the frame and is formed with a first guiding groove and a through hole. The operable unit is pivotally connected to the base unit and includes at least one side wall formed with a positioning hole and a second guiding groove. The brake unit is disposed slidably in the first and second guiding grooves. The positioning unit is disposed in the through hole and includes a positioning component and an elastic member elastically abutting against the positioning component.

Abstract: An infant swing includes a carrier, a first foot, at least one arm, a second foot, a pivotal positioning mechanism, a driving device, and a power supply device. The arm is connected to the first foot and the carrier. A second pivot base of the second foot is pivotally connected to a first pivot base of the first foot. The second foot is used for supporting the carrier above a supporting surface cooperatively with the first foot and the arm. The pivotal positioning mechanism is disposed between the first pivot base and the second pivot base. The pivotal positioning mechanism is used for constraining rotation of the second foot. The driving device is used for driving the arm. The power supply device is used for providing electric power to the driving device so as to make the carrier capable of swinging relative to the first foot.

Abstract: A folding device is configured at the bottom of rear leg frame and at the pivot between the rear leg frame and front leg frame of a high chair. The folding device allows a user to complete folding process by pressing a button at the bottom of the rear leg frame. When the button is pressed, a rotator in the housing of the folding device rotates correspondingly and drags connected steel wires to move horizontally inward. The other ends of the steel wires further connect to engaging parts at the pivots and engaging between the front leg frame and the rear leg frame and retract the engaging parts so that the rear leg frame disengages from and pivots about the front leg frame. The high chair may be folded with one-foot operation.

Abstract: An infant swing includes a carrier, a first foot, at least one arm, a second foot, a pivotal positioning mechanism, a driving device, and a power supply device. The arm is connected to the first foot and the carrier. A second pivot base of the second foot is pivotally connected to a first pivot base of the first foot. The second foot is used for supporting the carrier above a supporting surface cooperatively with the first foot and the arm. The pivotal positioning mechanism is disposed between the first pivot base and the second pivot base. The pivotal positioning mechanism is used for constraining rotation of the second foot. The driving device is used for driving the arm. The power supply device is used for providing electric power to the driving device so as to make the carrier capable of swinging relative to the first foot.

Abstract: A folding device is configured at the bottom of rear leg frame and at the pivot between the rear leg frame and front leg frame of a high chair. The folding device allows a user to complete folding process by pressing a button at the bottom of the rear leg frame. When the button is pressed, a rotator in the housing of the folding device rotates correspondingly and drags connected steel wires to move horizontally inward. The other ends of the steel wires further connect to engaging parts at the pivots and engaging between the front leg frame and the rear leg frame and retract the engaging parts so that the rear leg frame disengages from and pivots about the front leg frame. The high chair may be folded with one-foot operation.