Injector system for encoding and sensing of syringe information

摘要

Injector systems which include a syringe and a powered injector to inject a fluid into a patient are described. The powered injector includes a drive member, an energy source, at least one sensor for detecting energy from the energy source, and at least one contact member axially movable in the injector and in communication with the sensor. The syringe includes at least one indicator positioned at a predetermined position, such as on a rear surface of an attachment flange, which may transmit or reflect energy from the energy source to the sensor. The contact member may contact and be moved by the indicator when the syringe is attached to the powered injector, so that the energy detected by the sensor may be determined by the position of the indicator. The position of the indicator thereby provides information about the syringe configuration.

主权项

1. An injector system comprising:
a powered injector comprising a drive member, an energy source, at least one sensor in communication with the energy source for detecting energy from the energy source, and at least one contact member axially movable in a direction of the drive member, the at least one contact member in communication with the at least one sensor; and a syringe comprising at least a first indicator indicative of a syringe configuration positioned on the syringe at a predetermined position, wherein the syringe configuration is detectable by the at least one sensor based on the predetermined position of the at least a first indicator when the syringe is attached to the powered injector, wherein the at least one contact member contacts the at least a first indicator to move the at least one contact member when the syringe is attached to the powered injector such that a signal from the energy source detected by the at least one sensor is proportional to a distance moved by the at least one contact member to indicate the syringe configuration, and wherein a rear surface of the first indicator transmits energy to the at least one sensor and comprises a surface that transmits energy to the at least one sensor by reflecting energy from the energy source to the at least one sensor.