초록 ▼

A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. D

A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. During a fill operation, a piston is moved within the syringe to drawn fluid from the reservoir into the syringe through the upper port. During injection operation, the piston moves in an opposite direction to force fluid out of the syringe through the lower port.

대표청구항 ▼

1. A device for injecting angiographic fluid into a patient comprising:an actuator assembly having an axially movable shaft; a receptacle axially aligned with and positioned adjacent to said actuator assembly, said receptacle sized to receive a syringe; a syringe insertable into said receptacle, sai

1. A device for injecting angiographic fluid into a patient comprising:an actuator assembly having an axially movable shaft; a receptacle axially aligned with and positioned adjacent to said actuator assembly, said receptacle sized to receive a syringe; a syringe insertable into said receptacle, said syringe having a movable plunger aligned with and engageable to said movable shaft when said syringe is located in said receptacle; a motor linked to said movable shaft such that energization of said motor causes motion of said movable shaft into and out of said syringe; a control system operably connected to said motor for causing movement of said movable shaft subject to a plurality of safety circuits; said control system including a motor circuit directing the speed of said motor according to input data from a user; a switch device connected to said control system providing user input data to said motor circuit; and said control system including a routine enabling operability of said switch device during injection of fluid into said patient so as to enable random variations to said motor speed during said injection according to manipulation of said switch by said user.