Injector system for encoding and sensing of syringe information
First Claim
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, andwherein 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.
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Accused Products
Abstract
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.
30 Citations
14 Claims
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1. An injector system comprising:
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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. - View Dependent Claims (2, 3)
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4. An injector system comprising:
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at least one syringe comprising at least a first indicator positioned on the at least one syringe at a predetermined position, the predetermined position of the at least a first indicator being associated with information about a syringe configuration; and a powered injector comprising a drive member, an energy source, at least one sensor for detecting energy from the energy source, and at least a first contact member axially movably disposed in the powered injector, the at least a first contact member positioned to contact the at least a first indicator when the at least one syringe is attached to the powered injector such that an axial position of the at least a first contact member is determined by a position of the at least a first indicator, wherein a change in the axial position of the at least a first contact member as a result of contact with the at least a first indicator indicates the syringe configuration, and wherein an amount of energy from the energy source detected by the at least one sensor is proportional to an axial distance moved by the at least a first contact member to indicate the syringe configuration; wherein the powered injector further comprises a plurality of sensors and at least a first shutter mechanism in operative connection with the at least a first contact member, each of the plurality of sensors having an on state and an off state, the at least a first shutter mechanism comprising at least one cooperating member to cooperate with at least one of the plurality of sensors to place the sensor in the on state or the off state, wherein each of the on state and the off state of the plurality of sensors provides a digital code corresponding to information on the syringe configuration. - View Dependent Claims (5, 6, 7)
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8. An injector for use with a syringe comprising at least a first indicator positioned thereon, the position of the at least a first indicator on the syringe being associated with a syringe configuration, the injector comprising:
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a drive member; an energy source; at least one sensor; at least a first contact member axially movably disposed in the injector, the at least a first contact member positioned to contact the at least a first indicator when the syringe is in operative connection with the injector such that an axial position of the at least a first contact member is determined by a position of the at least a first indicator, wherein a change in the axial position of the at least a first contact member as a result of contact with the at least a first indicator indicates the syringe configuration and wherein an amount of energy from the energy source detected by the at least one sensor is proportional to an axial distance moved by the at least a first contact member to indicate the syringe configuration; a plurality of sensors; and at least a first shutter mechanism in operative connection with the at least a first contact member, each of the plurality of sensors having an on state and an off state, the at least a first shutter mechanism comprising at least one cooperating member to cooperate with at least one of the plurality of sensors to place the sensor in the on state or the off state, wherein each of the on state and the off state of the plurality of sensors provides a digital code corresponding to information on the syringe configuration. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification