Angiographic injector system with multiple processor redundancy
First Claim
1. A medical fluid injection system, comprising:
- a device for injecting a medical fluid into a patient;
a drive means operatively connected with the device for causing the device to inject the medical fluid;
a first computer configured to receive at least a first fluid injection setting; and
a second computer configured to receive a command to perform an injection from the first computer and operatively connected with the drive means so as to control an injection,wherein the first and second computers each have an independent communication link to at least one sensor for monitoring at least one safety parameter throughout the injection process, such that either or both of the first and second computers control the device according to the monitoring of the at least one safety parameter.
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Accused Products
Abstract
An angiographic injector system and a method of controllably delivering medical fluid to a patient from an angiographic injector system are disclosed. A multiple processor control system is used to actively control the injection process and to monitor sensed functions of the system. The multiple processors provide dual redundancy safety circuits for critical control functions such as syringe motor drive speed and current. A motor/servo-amplifier nested control function is also disclosed. A unique method and apparatus are disclosed for establishing injection parameter default values just prior to an injection procedure that are based on physiological values of the patient to be treated. The injector system uses an interactive display panel that presents sequenced set-up screens to the user and which enables the user to select injection procedures, parameters and other modes of operation directly through the interactive panel.
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Citations
20 Claims
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1. A medical fluid injection system, comprising:
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a device for injecting a medical fluid into a patient; a drive means operatively connected with the device for causing the device to inject the medical fluid; a first computer configured to receive at least a first fluid injection setting; and a second computer configured to receive a command to perform an injection from the first computer and operatively connected with the drive means so as to control an injection, wherein the first and second computers each have an independent communication link to at least one sensor for monitoring at least one safety parameter throughout the injection process, such that either or both of the first and second computers control the device according to the monitoring of the at least one safety parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling a medical fluid injection apparatus, comprising:
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providing an injection apparatus with a fluid delivery mechanism for injecting a medical fluid; providing at least a first fluid injection setting to at least a first computer of the fluid delivery system; controlling a medical fluid injection from the fluid delivery mechanism with at least a second computer operatively connected with the fluid delivery mechanism and configured to receive from the first computer a command to perform an injection; monitoring throughout the injection process at least one safety parameter of the medical fluid injection with both the first and second computers; and controlling the medical fluid injection with either or both of the first and second computers according to the monitoring of at least one safety parameter. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification