Please select the most similar patent number from A, B, C and D. Which number is?
Provided is a safe root canal treatment system, comprising a safe root canal instrument, an instrument code identification system and a safe root canal motor handle, wherein the safe root canal instrument carries an identifiable instrument code that corresponds to a model specification; and after the safe root canal instrument is mounted on the safe root canal motor handle, the instrument code identification system can autonomously identify the model specification of the safe root canal instrument, the safe root canal motor handle can autonomously invoke an operating program corresponding to the model specification of the safe root canal instrument, and an information link is established between the safe root canal instrument and the safe root canal motor handle. The beneficial effect of the present invention is that it is possible to ensure the safety of instrument usage.
A: A hydraulically driven interventional instrument delivery system, comprising a plurality of pipe fittings (1) coaxially arranged from the inside to the outside, and a control handle (2) that drives the plurality of pipe fittings (1) to make relative movements; distal ends of the pipe fittings (1) are used to cooperate with each other to operate an interventional instrument, proximal ends of the pipe fittings (1) are connected to the control handle (2), and at the control handle (2), the pipe fittings (1) are hydraulically driven to make relative movements; the control handle (2) is provided with one or more hydraulic chambers (311, 321), and pistons (4, 9) are slidably installed inside the hydraulic chambers (311, 321) respectively; and two radially adjacent pipe fittings (1) comprise an outer layer pipe fitting and an inner layer pipe fitting, the outer layer pipe fitting enters one of the hydraulic chambers (311, 321) and is fixed to a piston (4, 9) in the hydraulic chamber (311, 321), and the inner layer pipe fitting extends and is connected to the piston (4, 9) of the other hydraulic chamber (311, 321) or fixed to the control handle (2). The hydraulically driven interventional instrument delivery system uses a hydraulic driving manner, which is convenient and quick to use, and may further switch between different functions by means of a hydraulic driving circuit.
B: Provided is a medical instrument, comprising a gripper (3), an operating head (2) and a handle (1), wherein the operating head (2) is connected to the gripper (3) and the handle (1); the handle (1) comprises a housing (10); the operating head (2) comprises a triggering force applicator, a triggering rod (21) connected to the triggering force applicator, a placement cavity (22) arranged at one side of the triggering rod (21), and a clip cartridge assembly (23) arranged inside the placement cavity (22) and used for conveying a ligation clip (231) to the gripper (3); an inner cavity (11) in communication with the placement cavity (22) is formed inside the housing (10); and the triggering rod (21) is connected to the triggering force applicator and the gripper (3) respectively, and the triggering force applicator drives the triggering rod (21) to move so as to open or close the gripper (3). The medical instrument further comprises a limiting member for preventing the clip cartridge assembly (23) and/or a driving assembly (26) from exceeding a travel range. The medical instrument has an extremely large safety coefficient by means of providing limiting protection, effectively reduces the probability of failure in the case of a single fault, reduces the risk of an operation, has a simple structure and is easily operated.
C: An interventional device delivery system driven by means of a hydraulic mode. The system comprises multiple pipes (1) provided coaxially from inside to outside, and a control handle (2) for driving the multiple pipes (1) to move relatively. The distal ends of the pipes (1) are used for matching each other to operate an interventional device, and the proximal ends of the pipes (1) are connected to the control handle (2); the pipes (1) are driven, by means of the hydraulic mode at the control handle (2), to move relatively. The control handle (2) is provided with one or more hydraulic cavities, and a piston is separately slidably mounted in each of the hydraulic cavities; a hydraulic driving circuit for driving, by means of the pistons, the pipes (1) to move relatively is further provided at the control handle (2). The hydraulic driving circuit comprises: a hydraulic pipeline (33) for providing a liquid channel communicated with the hydraulic cavities; a driving pump (5), communicated with the hydraulic pipeline (33) and used for driving a liquid to flow; and a control valve, communicated with the hydraulic pipeline (33) and used for controlling a flow direction of the liquid. The hydraulically driven interventional device delivery system uses a hydraulic drive mode, and is convenient and swift in use, and different functions can further be switched by means of the hydraulic driving circuit.
D: A root canal preparation machine (200) and a root canal preparation machine (200) control method. The root canal preparation machine (200) comprises a root canal handle (220), a root canal file (230), an electric motor and a first near field communication device (240), wherein the electric motor and the root canal file (230) are both connected to the root canal handle (220); the electric motor is configured to drive the root canal file (230) to rotate; the first near field communication device (240) is electrically connected to the electric motor; and the first near field communication device (240) is configured to control the electric motor on the basis of external information (250).
Answer: D