Abstract: A neurosurgery system for probing brain tissue of a patient for tumorous tissue. The system including a suction tool, an excitation source, an optical instrument, and a controller. The suction tool including a suction cannula defining a lumen, an optical fiber configured to transmit fluorescence emitted by the brain tissue; and an indicator configured to selectively emit visible light. An excitation source is configured to emit an excitation light having a wavelength to induce the fluorescence in the tumorous tissue. The optical instrument is coupled to the optical fiber. The optical instrument configured to convert the fluorescence emitted by the brain tissue and transmitted by the optical and configured to determine that the brain tissue is tumorous based on the electrical signal and activate the indicator based on the determination.

Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.

Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.

Abstract: An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.

Abstract: A surgical irrigation cassette comprises a cassette housing, a portion of a pump, and fluid pathways. The housing defines a chamber therein and a first console connector including a first pneumatic connector port. The pump portion includes an intake side of the pump and an output side of the pump. The fluid pathways are disposed at least in part within the chamber. A first fluid pathway, in an installed position, connects the intake side of the pump with a supply fluid container. A second fluid pathway, in an installed position, connects the output side of the pump and a handpiece. A third fluid pathway, in an installed position, connects the handpiece and a waste container A fourth fluid pathway, in an installed position, connects the first console connector and the waste container.

Abstract: A system for maintaining permissive hypotension in a patient includes monitoring of blood perfusion and pressure, combining blood perfusion and pressure data to determine systolic blood pressure, monitoring for detection of systolic blood pressure below a critical threshold value, and providing an alert to perfusion options to maintain permissive hypotension. The system may be adapted to adjust the critical threshold value for systolic blood pressure as treatment progresses.

Abstract: A system for maintaining permissive hypotension in a patient includes monitoring of blood perfusion and pressure, combining blood perfusion and pressure data to determine systolic blood pressure, monitoring for detection of systolic blood pressure below a critical threshold value, and providing an alert to perfusion options to maintain permissive hypotension. The system may be adapted to adjust the critical threshold value for systolic blood pressure as treatment progresses.