PRESCRIPTION DECISION SUPPORT SYSTEM
First Claim
1. A prescription decision support system comprising:
- a set of variables and domains, where the variables represent treatments or disease states and dosages, severity and durations;
a first constraint base comprising a plurality of logical statements, where each statement is a logical combination of restrictions on values assigned to a subset of the variables from the set of variables and domains, and which specifies a combination of the presence or absence of a patient disease state and a treatment including at least one treatment that is present which should not occur in a prescription;
an Assess algorithm module comprising an algorithm which takes as input a subset of variables from the set of variables and domains with assigned values representing a patient case history and prescription, and which outputs an assessment of the prescription, highlighting any element of the input which violates a constraint in the first constraint base;
a Consistent algorithm module comprising an algorithm which takes as input a logical statement and an assignment of values to the variables in that statement and which determines whether or not the statement and assignment are consistent.
1 Assignment
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Accused Products
Abstract
This invention relates to a prescription decision support system of the type comprising a set of variables and domains, a first constraint base comprising a plurality of logical statements, an Assess algorithm module and a Consistent algorithm module. The logical statements of the first constraint base specify the combination of disease states and treatments that are present that should not occur in a prescription. The prescription decision support system further comprises a second constraint base comprising a plurality of logical statements, the logical statements specifying the combination of disease states and treatments, which treatments should be present in the prescription. By providing such a system, it is possible for the prescription decision to reason about complex relationships including the presence or absence of treatments, or dosages, or the presence or absence of disease states. Furthermore, the system is responsive to the specific nature of the patient'"'"'s case history.
2 Citations
16 Claims
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1. A prescription decision support system comprising:
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a set of variables and domains, where the variables represent treatments or disease states and dosages, severity and durations; a first constraint base comprising a plurality of logical statements, where each statement is a logical combination of restrictions on values assigned to a subset of the variables from the set of variables and domains, and which specifies a combination of the presence or absence of a patient disease state and a treatment including at least one treatment that is present which should not occur in a prescription; an Assess algorithm module comprising an algorithm which takes as input a subset of variables from the set of variables and domains with assigned values representing a patient case history and prescription, and which outputs an assessment of the prescription, highlighting any element of the input which violates a constraint in the first constraint base; a Consistent algorithm module comprising an algorithm which takes as input a logical statement and an assignment of values to the variables in that statement and which determines whether or not the statement and assignment are consistent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer implemented method of providing prescription decision support, the method comprising the steps of:
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receiving a patient case history and prescription with information regarding a patient'"'"'s disease state and a treatment; assigning values to a plurality of variables taken from a set of variables and domains corresponding to variables in the patient case history and prescription; accessing a first constraint base, the constraint base comprising a plurality of logical statements, where each statement is a logical combination of restrictions on values assigned to a subset of the variables from the set of variables and domains, and which specifies a combination of the presence or absence of a patient disease state and a treatment including at least one treatment that is present which should not occur in a prescription and retrieving a logical statement from the first constraint base relevant to one or more of the variables present in the patient case history and prescription; passing the logical statement and an assignment of the variables in that statement to a Consistent algorithm module and determining whether or not the logical statement and assignment are consistent; and outputting an assessment of the prescription, highlighting any element of the prescription which violates a constraint in the first constraint base. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification