摘要:
Physiological electrical signals such as electrocardiograph signals ae converted to digital form, amplified to a standard maximum amplitude and analyzed by a computer. The analysis may calculate the ratios of energies above and below an isoelectric line, the statistical distribution of gradients, the frequency of a maximum negative gradient and the zero content of the signal. The analysis may be used for detecting ventricular fibrillation.
摘要:
End effectors with closing mechanisms, and related tools and methods are disclosed. The disclosed end effectors may be particularly beneficial when used for minimally invasive surgery. An example surgical tool comprises a first and second jaw movable between a closed grasped or clamped configuration and an open configuration. The tool further comprises a soft grip mode for grasping the tissue at a first force during which a separation parameter between the jaws is measured, and a therapeutic clamping mode in which the jaws clamp on the body tissue at a force greater than the grasping force. The methods comprise grasping the body tissue between jaw members, measuring the separation parameter between jaws, indicating on a user interface the separation parameter for comparison to a desired separation parameter, and then releasing the body tissue for repositioning or therapeutically clamping the body tissue in response to the separation parameter indication.
摘要:
A control console to remotely control medical equipment is disclosed having a base with an ergonomically adjustable pedal system. The base further has an opening to receive the pedal system. The pedal system includes a moveable pedal tray with a pedal base. The tray includes a first left pedal assembly and a first right pedal assembly, and an upper tier having a second left pedal assembly and a second right pedal assembly respectively in alignment with and elevated above the first left pedal assembly and the first right pedal assembly. Rollers are rotatable coupled to the moveable pedal tray to allow it roll over a floor. A drive assembly is coupled between the moveable pedal tray and the base. The drive assembly applies a force to the to roll the moveable pedal tray over the floor within the opening of the base.
摘要:
An electrical damping system provides damping over a wide range of frequencies including high frequencies. The system includes a resistance in parallel with an electric motor or series connected resistance and capacitance in parallel with the electric motor. In another embodiment, an electrical damping system is provided for a motor having a delta or wye motor winding configuration.
摘要:
An electrical damping system provides damping over a wide range of frequencies including high frequencies. The system includes a resistance in parallel with an electric motor or series connected resistance and capacitance in parallel with the electric motor. In another embodiment, an electrical damping system is provided for a motor having a delta or wye motor winding configuration.
摘要:
Systems and methods are provided for detecting failure in clamping of a material and/or firing of a staple into a clamped material and indicating such failure to a user on a user interface. The system and methods are particularly suited for use with end effectors having closing and/or firing mechanisms coupled to an actuator. By monitoring a driving parameter of an actuator that effects the clamping and/or firing, the systems and methods provide an indication of failure in response to the monitored drive parameter. In some embodiments, an indication of failure is output when the monitored drive parameter is outside an acceptable range of desired driving parameters during clamping and/or firing. The disclosed systems and methods are particularly beneficial when used for minimally invasive surgery.
摘要:
Disclosed are systems and methods for implementing a Commuter Credit Program that allows commuters and non-commuters to generate credits that may be redeemed as cash on tollway system or for other benefits. Exemplary systems and methods identify participants or a proxy account ID at various locations on the transportation system or at other prescribed locations to qualify the participant and issue commuter credit. Similarly, exemplary systems and methods positively identify participants at various locations in the transportation system such that the credits can be used in lieu of paying cash on the tollway or at other prescribed locations to receive alternative benefits.
摘要:
A sterile covering enabling an endoscope to be attached to or detached from a camera coupling without contamination by either the camera or the coupling. The sterile covering encloses the camera and is disposed within a cavity of a C-mount coupling which couples the endoscope to the camera. The covering includes a system for registering an optically clear portion of the covering, an optically clear film, or an element coupled to the covering with the endoscope-to-camera optical path. In one embodiment, the same system which establishes optical registration also enables attachment of the covering to the C-mount coupling, thereby providing an optically clear, fluid-impermeable barrier between the endoscope and the camera, and eliminating possible contamination of the endoscope by either the C-mount coupling or the camera.
摘要:
Systems and methods are provided for detecting misfire of a surgical staple cartridge and for indicating such misfire to a user on a user interface. An actuation force applied to a staple cartridge is measured and compared to a threshold actuation force. In response to the comparison, a controller determines if there has been a misfire of the surgical staple cartridge. A determination that misfire has occurred is made when the measured actuation force is greater than a maximum threshold force or less than a minimum threshold force, and under such circumstances, the controller terminates the staple firing sequence.
摘要:
Systems and methods are provided for detecting failure in clamping of a material and/or firing of a staple into a clamped material and indicating such failure to a user on a user interface. The system and methods are particularly suited for use with end effectors having closing and/or firing mechanisms coupled to an actuator. By monitoring a driving parameter of an actuator that effects the clamping and/or firing, the systems and methods provide an indication of failure in response to the monitored drive parameter. In some embodiments, an indication of failure is output when the monitored drive parameter is outside an acceptable range of desired driving parameters during clamping and/or firing. The disclosed systems and methods are particularly beneficial when used for minimally invasive surgery.