Abstract: Disclosed is an end effector for a stapler, including a knife holder, and a staple cartridge unit and a staple anvil which are pivotally connected to achieve relative opening and closing. The staple cartridge unit includes a staple cartridge base and a detachable staple cartridge assembly. The knife holder includes a knife holder body and a limiting projection. The limiting projection is arranged between the knife holder body and the knife holder body. When the staple cartridge assembly is detached or mounted relative to the staple cartridge base, the limiting projection of the knife holder abuts against a proximal end portion of the staple cartridge base to stop the staple cartridge base. When the knife holder leaves the initial retraction position, the limiting projection of the knife holder is separated from the staple cartridge base.

Abstract: Provided by the present invention is a reusable stapler comprising an adapter and a handle, the adapter being detachably connected to the handle. The adapter is a disposable component. The handle can be repeatedly used after being sterilized. The handle comprises a frame and an assembly/disassembly dial button, the assembly/disassembly button being mounted on the frame. The adapter comprises a center rod sleeve, the end of the center rod sleeve having a pair of bulges. The assembly/disassembly button is configured to control the detachable connection between the adapter and the handle. The handle can be repeatedly used after being sterilized, thereby reducing the surgery cost. The solution of detachable adapter provided by the present invention is reliable, simple, and convenient to operate, and can effectively implement the assembly and disassembly of the adapter.

Abstract: A medical device includes an actuator, a connecting mechanism, and a control mechanism connected to the actuator by the connecting mechanism. The control mechanism includes a firing assembly, a limiting assembly connected to the firing assembly, and a reset mechanism connected to the limiting assembly. The firing assembly can move in a first direction after being fired to realize an action of the actuator. The limiting assembly can limit the firing assembly not to move in a second direction after the firing assembly moves in the first direction. After movement of the firing assembly is limited, the reset mechanism can adjust position of the limiting assembly to release the limit on the firing assembly and allow the firing assembly to move in the second direction. An operator can easily hold the medical device (e.g., a stapler) with one hand while completing a reset action of a firing rack.

Abstract: The present teaching relates to a reset apparatus including a first transmission mechanism, a first rotary transmission mechanism, a one-way rotary transmission mechanism, and a second rotary transmission mechanism; a stapler; and a medical device. The one-way rotary transmission mechanism only rotates in a set direction, and is connected with the second rotary transmission mechanism, and drives the same to rotate towards the set direction. In a first state, the first transmission mechanism is connected with the first rotary transmission mechanism which drives the first transmission mechanism to act along the set direction. In a second state, the first transmission mechanism is connected with the second rotary transmission mechanism which drives the first transmission mechanism to act along the set direction. The present invention achieves manual resetting when the device is accidentally shut down, and is simple in structure, and safe and reliable in use.

Abstract: An ultrasonic surgical instrument has an easily assembled cannula assembly. The instrument includes an ultrasonic cutter bar for transmitting ultrasonic mechanical energy, wherein the cannula assembly is coaxially mounted around the ultrasonic cutter bar, and the cannula assembly is provided with the jaw at a distal end thereof and a handle assembly at a proximal end thereof. The cannula assembly has an integral structure and is connected to the handle assembly by means of a connecting mechanism. The integral cannula assembly can reduce assembly procedures, simplify a mounting structure, reduce complex structures, generally reduce the cost of manufacturing instruments, and reduce the wound on patients.

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: The present application provides an ultrasonic surgical instrument with a detachable cannula component, comprising a cannula component and an instrument body, wherein the instrument body comprises a scalpel bar for realizing an ultrasonic cutting effect. The cannula component is mounted on the instrument body or dismounted from the instrument body along the longitudinal axis of the scalpel bar by a detachable structure. The present application also provides another ultrasonic surgical instrument with a detachable cannula component, comprising a detachable cannula component and an instrument body, wherein the instrument body comprises a non-detachable internal cannula and a scalpel bar capable of realizing an ultrasonic cutting effect. Compared with the prior art, the ultrasonic surgical instrument with a detachable cannula component of the present application has the advantages of being simple in structure, convenient to mount and dismount and low in use cost.

Abstract: Disclosed is an end effector for a stapler, including a knife holder, and a staple cartridge unit and a staple anvil which are pivotally connected to achieve relative opening and closing. The staple cartridge unit includes a staple cartridge base and a detachable staple cartridge assembly. The knife holder includes a knife holder body and a limiting projection. The limiting projection is arranged between the knife holder body and the knife holder body. When the staple cartridge assembly is detached or mounted relative to the staple cartridge base, the limiting projection of the knife holder abuts against a proximal end portion of the staple cartridge base to stop the staple cartridge base. When the knife holder leaves the initial retraction position, the limiting projection of the knife holder is separated from the staple cartridge base.

Abstract: The present disclosure discloses a control end of a surgical instrument, which comprises a housing and a power assembly, the housing comprises a first body and a second body, a first cavity for accommodating the power assembly is provided between the first body and the second body, and the power assembly is detachably mounted in the first cavity.

Abstract: A medical device includes an actuator, a connecting mechanism, and a control mechanism connected to the actuator by the connecting mechanism. The control mechanism includes a firing assembly, a limiting assembly connected to the firing assembly, and a reset mechanism connected to the limiting assembly. The firing assembly can move in a first direction after being fired to realize an action of the actuator. The limiting assembly can limit the firing assembly not to move in a second direction after the firing assembly moves in the first direction. After movement of the firing assembly is limited, the reset mechanism can adjust position of the limiting assembly to release the limit on the firing assembly and allow the firing assembly to move in the second direction. An operator can easily hold the medical device (e.g., a stapler) with one hand while completing a reset action of a firing rack.

Abstract: This application provides a linear stapler with an adjusting mechanism having wider adjusting scope and more suitable pressing force and being more convenient to operate, and including an adjusting shift lever with at least one step surface on each of upper and lower ends, an adjusting slider with multiple step surfaces on an end surface close to the adjusting shift lever, and an adjusting chassis having multiple step surfaces on an end surface close to the adjusting shift lever. The adjusting shift lever rotates with a shifted adjusting knob to generate relative displacement vertical to the step surface with the adjusting slider at one end and relative displacement vertical to the step surface with the adjusting chassis at the other end, and drive a nail abutting seat subassembly to rotate relatively to a nail bin seat, until the thickness of clamped tissue is consistent in near and far ends.

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 waveguide rod for an ultrasonic scalpel having a relatively desirable amplitude and frequency comprises a proximal gain structure, a distal gain structure, an intermediate structure, and a frequency adjustment structure. The proximal gain structure and the intermediate structure are connected in a position near an antinode of longitudinal vibration of the waveguide rod through a proximal side gain step. The distal gain structure and the intermediate structure are connected in a position near an antinode of the longitudinal vibration of the waveguide rod through a distal side gain step. The intermediate structure comprises N (N>0, and N is an integer) gain holding structures that are connected two by two in a position near an antinode of the longitudinal vibration of the waveguide rod through an intermediate gain step. X (X>0, and X is an integer) frequency adjustment structures exist on the gain holding structure.