摘要:
Pump cassettes, infusion systems, and methods are described. An example pump cassette may include a rigid body including two opposing edge sections, an inlet port, an outlet port, and a controllable fluid pathway extending from the inlet port to the outlet port. The pump may include a slider coupled to the two opposing edge sections and articulable with respect to the rigid body; and a flow stop valve operably coupled to the controllable fluid pathway.
摘要:
A method for sterilizing an antiseptic solution includes providing a container containing the antiseptic solution, the antiseptic solution having an initial purity, selecting a sterilization temperature from about 85° C. to about 135° C. and an sterilization time from about 1 minute to about 19 hours, heating the antiseptic solution to the selected sterilization temperature, maintaining the temperature for the selected sterilization time, and terminating the heating of the antiseptic solution when the sterilization time expires. After terminating the heating, the antiseptic solution has a post-sterilization purity. The sterilization temperature and the sterilization time are selected such that after terminating the heating, the antiseptic solution is sterile and has a post-sterilization purity of at least about 92% and the percentage point change in purity from the initial purity to the post-sterilization purity is at most about 5%.
摘要:
A spool valve for controlling fluid communication among hydraulic cylinders operating control and slave portions of a surgical device. The spool valve may be used to disconnect the control and the slave portions from one another such that there is no fluid communication between the control and slave portions. The spool valve may be used to engage or allow fluid communication between the control and slave. The spool valve may also be used to allow fluid communication between the slave and control portion and a fluid reservoir, thus allowing the hydraulic system to replenish fluid lost to evaporation, leakage, or other escape. The spool valve includes a body portion having at least two ports and a spool having at least one passageway moveable to a position so as to communicate with the at least two ports.