Information entry validation system and method for a dialysis machine
First Claim
1. A dialysis machine having an operator/machine interface by which an operator enters control and safety information for use by the dialysis machine, said dialysis machine comprising:
- an information entry device;
a display device; and
a safety system connected to the information entry device and the display device,the safety system including means for firstly converting information entered from the entry device into a first form using a first conversion relationship, and thereafter for secondly converting the information in the first farm to a second form using a second conversion relationship which is different from the first conversion relationship, and thereafter for thirdly converting the information from the second ram back to the first form using the first conversion relationship;
the safety system farther including menu for controlling the display device to display the information in the first form which resulted from the third conversion, and means for registering acceptance or rejection information supplied by the operator at the entry device to accept or reject the displayed information which resulted from the third conversation.
7 Assignments
0 Petitions
Accused Products
Abstract
Information is entered and validated by the operator of a dialysis machine by converting the entered information into a first form using a first conversion relationship such as ASCII. The information in the first form is next converted into a second form using a second conversion relationship, such as floating point numeric. Thereafter the information in the second form is converted back to the first form using the first conversion relationship. The information in the first form which resulted from the third conversion is displayed for acceptance for rejection by the operator. The multiple sequential conversions indicate the proper functionality of a safety system of the dialysis machine. Displaying the information resulting from sequential multiple conversions assures an opportunity for the operator to evaluate the entries for accuracy. Re-display of the previously entered information repeatedly presents the operator with an opportunity to recognize human-induced errors.
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Citations
44 Claims
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1. A dialysis machine having an operator/machine interface by which an operator enters control and safety information for use by the dialysis machine, said dialysis machine comprising:
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an information entry device; a display device; and a safety system connected to the information entry device and the display device, the safety system including means for firstly converting information entered from the entry device into a first form using a first conversion relationship, and thereafter for secondly converting the information in the first farm to a second form using a second conversion relationship which is different from the first conversion relationship, and thereafter for thirdly converting the information from the second ram back to the first form using the first conversion relationship; the safety system farther including menu for controlling the display device to display the information in the first form which resulted from the third conversion, and means for registering acceptance or rejection information supplied by the operator at the entry device to accept or reject the displayed information which resulted from the third conversation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A dialysis machine having an operator/machine interface by which an operator receives information describing operation and safety conditions of the machine and characteristics for treatment of a patient by the machine, said dialysis machine comprising:
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display device operable for displaying internal information from the machine to the operator in response to the application of display signals to the display; and a safety system including; a memory within which a font table is recorded, and means for creating the display signals by correlating the internal information with the font table to derive the display signals, the display signal creating means utilizing only the font table for correlating all of the internal information into the display signals.
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15. A dialysis machine having an operator/machine interface by which an operator enters control and safety information for the machine, said dialysis machine comprising:
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information entry devices; a display device; and a control operative system for controlling the operation of the machine and including a control system memory within which to record operating information to be used for operating the machine; a safety system connected to the information entry device, the display device and the control system, the safety system including; a safety system memory having a first memory location and a second memory location, means for converting information entered from the entry device into a first form and for storing the information in the first form in the first memory location, means for copying the information stored in the first memory location into the second memory location, means for comparing the information stored in the first and second memory locations, and means for erasing the information in the first memory location and maintaining the information in the second memory location and for copying the information from the second memory location into the control system memory upon the comparison of the information in the first and second memory locations indicating equality. - View Dependent Claims (16, 17)
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18. A method of validating control and safety information entered into and to be used by a dialysis machine during dialysis treatment, comprising the steps of:
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entering information using an information entry device of the machine; firstly converting information entered from the entry device into a first form using a first conversion relationship; secondly converting the information in the first form to a second form using a second conversion relationship which Is different front the first conversion relationship; thirdly converting the information from the second form back to the first form using the first conversion relationship; displaying the information in the first form which resulted from the third conversion; and requiring an operator of the machine to accept or reject the information displayed to continue operation of the machine. - View Dependent Claims (19, 20, 21)
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22. A method of displaying internal information train a dialysis machine which describes operational and safety conditions of the machine and characteristics of treatment of a patient by the machine while simultaneously confirming proper internal operation of at least a part of the dialysis machine, comprising the steps of:
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displaying internal information from the machine, recording a font table in a memory within the machine, deriving characters of the displayed internal information by correlating the internal information with the font table, and using only the font table for all correlations of internal information with characters displayed.
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23. A method of entering control and safety information into a dialysis machine for use in a control system and in a safety system of the dialysis machine during a dialysis treatment of a patient using the machine, comprising the steps of:
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recording control information in a memory of the control system to control the dialysis machine during treatments, recording safety information in a memory of the safety system to monitor the operation of the dialysis machine and the condition of the patient during treatment, dividing the memory of the safety system into a first location and a second location, entering treatment information, converting the treatment information entered into a predetermined form and storing the converted information in the predetermined form in the first memory location, copying the information stored in the first memory location into the second memory location, and comparing the information in the first and second memory locations, and upon the information in the first and second memory locations indicating equality, erasing the information in the first memory location, and maintaining the information in the second memory location, and copying the information from the second memory location into the control system memory. - View Dependent Claims (24, 25)
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26. A dialysis machine having an operator/machine interface by which an operator enters control and safety information for use by the dialysis machine, said dialysis machine comprising:
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an information entry device; a display device; and a safety system operatively connected to the entry device and the display device, the safety system including a memory having first, second and third memory locations, the safety system being operative to; convert information entered from the entry device into a first form and store the information in the first form in the first memory location, convert the information in the first form to equivalent information in a second form and store the information in second form in both the second and third memory locations, compare the information in the second and third memory locations for equivalency, convert the information in the second form obtained from the second memory location to a third form, and control the display device to display the information in the third form. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A dialysis machine having an operator/machine interface by which an operator enters control and safety information for the machine, said dialysis machine comprising:
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information entry device; a display device; and a control system for controlling the operation of the machine and including a control system memory within which to record operating information to be used for controlling the machine; a safety system connected to tho entry device and the display device and the control system, the safety system including a safety system memory having a first location and a second location, the safety system being operative to; convert information entered from the entry device into a first form and store the information in the first form in the first memory location, copy the information stored in the first memory location into the second memory location, calculate an error detecting code based on the information stored it the first memory location, store the error detecting code in the second memory location along with the information stored in the second memory location, and copy the information and the error detecting code stored in the second memory location into the control system memory. - View Dependent Claims (34, 35)
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36. A dialysis machine having an operator/machine interface by which an operator enters control and safety information for use by the dialysis machine, said dialysis machine comprising:
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an information entry device; a display device; and a safety system operatively connected to the entry device and the display device, the safety system operative to; convert information entered from the entry device into a first form using a first conversion relationship, and thereafter convert the information in the first form to a second equivalent form using a second conversion relationship which is different from the first conversion relationship, and thereafter convert the information from the second form back to the first form using the first conversion relationship; and
thereaftercontrol the display device to display the information in the first form which resulted from the third conversion. - View Dependent Claims (37, 38, 39, 40)
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41. A dialysis machine having an operator/machine interface by which an operator receives information describing the operation and safety conditions of the machine and the characteristics of the treatment, said dialysis machine comprising:
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an intonation entry device by which to enter information describing operation and safety conditions of the machine; a display device by which to display information from the machine, the display device creating displays of information for the operator in response to the application of display signals applied to the display device; and a safety system connected to the entry device and the display device, the safety system including a memory in which a font table is recorded, the safety system being operative to; receive entered information from the entry device; generate internal information describing the operative conditions or the machine; correlate all entered and internal information to be displayed to the font table; create display signals corresponding to the entered and internal information frost the correlation to the font table; and apply the created display signals to the display device to display the entered and internal information.
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42. A dialysis machine having an operator/machine interface by which an operator enters control and safety information for the machine, said dialysis machine comprising:
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an information entry device; a display devices; and a control system for controlling the operation of the machine and including a control system memory within which to record machine operating information; a safety system for monitoring the proper operation of the machine and the condition of a patient undergoing dialysis, the safety system connected to the information entry device and the display device, the safety system having a first and second memory locations, the safety system being operative to; convert information entered from the entry device into a first form, store the information in the first form in the first memory location, convert the information in the first form to a second equivalent form, store the information in the second form in the second memory location, compare the information in the first and second memory locations, and upon the comparison indicating equality erase the information in the first memory location, and maintain the information in the second memory location, and copy the information from the second memory location to the control system memory for use by the control system. - View Dependent Claims (43, 44)
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Specification