Abstract: Robotic surgical systems are provided. In one exemplary embodiment, a robotic surgical system includes an electromechanical arm, a motor housing, a tool shaft, an end effector, and an articulation actuation system. The tool shaft includes a central body and a joint assembly having master and slave joints. The end effector is configured to move in response to movement of the slave joint. The articulation actuation system is configured to act directly on the master joint without directly acting on the slave joint to move the master joint in at least one plane. The master and slave joints are operably coupled to each other such that movement of the master joint causes parallel movement of the slave joint while maintaining a position of a longitudinal axis of the central body of the tool shaft to thereby effect articulation of the end effector. Surgical systems and methods are also provided.

Abstract: A reciprocating medicament mixing and injector system, where the energy provided to transfer medicament components back and forth between containers or cartridges can be redirected to deliver the mixed medicament components. In one embodiment the energy source is a pressurized gas chamber, in another, it is constant force spring, and in another it is a compression spring.

Abstract: An electrical device for reducing noise, comprises a first microphone configured to receive soundwave from a sound source and convert the soundwave to a first electrical signal including a noise component, a second microphone configured to receive ambient noise from an ambient environment and convert the ambient noise to a second electrical signal. The second electrical signal is reversed in polarity to the first electrical signal. The electrical device further comprises a circuit connecting the first microphone and the second microphone. The circuit is configured to combine the first electrical signal and the second electrical signal in order to reduce the noise component in the first electrical signal with the second electrical signal that is reversed in polarity.

Abstract: An electrical device for reducing noise, comprises a first microphone configured to receive soundwave from a sound source and convert the soundwave to a first electrical signal including a noise component, a second microphone configured to receive ambient noise from an ambient environment and convert the ambient noise to a second electrical signal. The second electrical signal is reversed in polarity to the first electrical signal. The electrical device further comprises a circuit connecting the first microphone and the second microphone. The circuit is configured to combine the first electrical signal and the second electrical signal in order to reduce the noise component in the first electrical signal with the second electrical signal that is reversed in polarity.

Abstract: Robotic surgical systems are provided. In one exemplary embodiment, a robotic surgical system includes an electromechanical arm, a motor housing, a tool shaft, an end effector, and an articulation actuation system. The tool shaft includes a central body and a joint assembly having master and slave joints. The end effector is configured to move in response to movement of the slave joint. The articulation actuation system is configured to act directly on the master joint without directly acting on the slave joint to move the master joint in at least one plane. The master and slave joints are operably coupled to each other such that movement of the master joint causes parallel movement of the slave joint while maintaining a position of a longitudinal axis of the central body of the tool shaft to thereby effect articulation of the end effector. Surgical systems and methods are also provided.