CN103170033A - Analgesia patient controlled analgesia (PCA) pump and method based on fuzzy mathematics judgment for pain degree of analgesia - Google Patents

Abstract

The invention relates to the technical field of analgesia patient controlled analgesia (PCA) pumps, in particular to an analgesia PCA pump based on fuzzy mathematics judgment for pain degree of analgesia. In the field of pain treatment by using the analgesia PCA pump, PCA press information of a patient is delivered through wireless transmitting and receiving. In a computer terminal, due to surgery patient individual differences and psychological and physiological differences of patients, a concept of fuzzy mathematics is introduced, patient-controlled fuzzy analgesia index (PCFAI) is put forward, and an analgesia pump platform is passed through adoption of fuzzy mathematics judgment for pain degree of analgesia. Through the analgesia pump platform, medical staff can monitor pain and analgesia condition of patients in the shortest time and optimize analgesia dosage schedule in time.

Description

A kind of analgesia PCA pump and method based on fuzzy mathematics judgement pain analgesia degree

[technical field]

The present invention relates to ease pain PCA pump and method refer to a kind of analgesia PCA pump and method based on fuzzy mathematics judgement pain analgesia degree especially.

[background technology]

Pain is the common symptom of surgical patient, but is subjected to the impact of the other factorses such as psychology, physiology and medicine, and pain will directly affect the recovery of postoperative patient disease.Clinically, how to select suitable medicine and dosage, reach effective treatment and control pain, be still at present the problem of a research.In recent years, being widely used of analgesia PCA pump alleviated the demand that pain is controlled, but due to the correct assessment that lacks pain degree, caused analgesic drug product to pump into the time longer, and analgesia deficiency or medicament are excessive, and the infringement patient body is healthy.

Assessment commonly used at present has (1) oral account rank scores method (VAS); (2) visual analogue scales (VRS).But due to patient's individual variation, to the description degree of pain and the difference of anti-pain degree, VAS will be difficult to react patient's real-time pain; And VRS is affected also by patient's vision etc. in clinical practice to use for a long time.

[summary of the invention]

In order to make up the defective at the interval of analgesia PCA pump administration in prior art, provide a kind of analgesia PCA pump based on fuzzy mathematics judgement pain analgesia degree to comprise:

Be used for setting the setting device of analgesia PCA pump administration minimum time interval,

Be used for acceptance and open the device of the open command of analgesia PCA pump;

Be used for the judgment means of judgement open command, this judgment means comprises:

To open command for the first time and afterwards at least the open command of interval minimum time interval t be judged as the device of effective instruction,

And to be judged as the device of illegal command less than the open command in minimum time interval;

Be used for carrying out the actuating unit that effective instruction is opened analgesia PCA pump;

Be used for adding up respectively the statistic device of minimum time interval occurrence number, illegal command number of times and effective instruction number of times in a plurality of time periods;

Be used for setting the device of effective instruction number of times lower limit in certain hour;

Be used for setting the device of illegal command number of times higher limit in certain hour;

Be used for comparing the device of the interior effective instruction number of times of certain hour and effective instruction number of times lower limit;

Be used for comparing the device of the interior illegal command number of times of certain hour and illegal command number of times higher limit;

Be used for adjusting the adjusting device of administration minimum time interval, this device comprises:

Effective instruction number of times in certain hour is increased the device of administration minimum time interval during less than effective instruction number of times lower limit,

And the device that illegal command number of times in certain hour is reduced the administration minimum time interval during greater than illegal command number of times higher limit;

Be used for showing the interior effective instruction of certain hour for the effective instruction lower limit, and illegal command is for the display device of the comparative result of illegal command higher limit.

This device preferred version also comprises:

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times according to the corresponding storage device that stores of time period sequencing;

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times are carried out the device that fuzzy mathematics is processed, this fuzzy mathematics formula is $\mathrm{PCFAI}=\sqrt{\underset{i,j=0}{\overset{n,m}{\mathrm{\Σ}}}{\mathrm{FF}}^2(i,j)/m\×n+\underset{k=0}{\overset{p}{\mathrm{\Σ}}}{\mathrm{FFV}}^2\left(k\right)/p},$

Wherein m is the total number of statistics illegal command number of times total time section, n is the total number of total time section of statistics minimum time interval occurrence number, j is i section time corresponding to illegal command number of times, i is the minimum time interval occurrence number i section time, p is statistics effective instruction number of times total time section, k is k section time corresponding to effective instruction number of times, FF (i, j) be the invalid pain factor, rank by pain is divided into 1 to 10, FFV (k) is effective pain factor, has the pain rank to be divided into 1 to 10;

Be used for showing the display device of fuzzy mathematics computing results pain degree PCFAI.

Be used for the time period is numbered sequentially, increased 1 device from 0 open numbering at every turn.

The invention still further relates to a kind of method that judges the analgesia PCA pump of pain analgesia degree based on fuzzy mathematics, comprising:

Set the step of analgesia PCA pump administration minimum time interval,

Characterized by further comprising:

Be used for acceptance and open the step of the open command of analgesia PCA pump;

Be used for the determining step of judgement open command, this determining step comprises:

To open command for the first time and afterwards at least the open command of interval minimum time interval t be judged as the step of effective instruction,

And to be judged as the step of illegal command less than the open command in minimum time interval;

Be used for carrying out the execution in step that effective instruction is opened analgesia PCA pump;

Be used for adding up respectively the statistic procedure of minimum time interval occurrence number, illegal command number of times and effective instruction number of times in a plurality of time periods;

Be used for setting the step of effective instruction number of times lower limit in certain hour;

Be used for setting the step of illegal command number of times higher limit in certain hour;

Be used for comparing the step of the interior effective instruction number of times of certain hour and effective instruction number of times lower limit;

Be used for comparing the step of the interior illegal command number of times of certain hour and illegal command number of times higher limit;

Be used for adjusting the set-up procedure of administration minimum time interval, this step comprises:

Effective instruction number of times in certain hour is increased the step of administration minimum time interval during less than effective instruction number of times lower limit,

And the step that illegal command number of times in certain hour is reduced the administration minimum time interval during greater than illegal command number of times higher limit;

Be used for showing the interior effective instruction of certain hour for the effective instruction lower limit, and illegal command is for the step display of the comparative result of illegal command higher limit.

The prioritization scheme of said method also comprises:

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times according to the corresponding storing step that stores of time period sequencing;

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times are carried out the step that fuzzy mathematics is processed, this fuzzy mathematics formula is $\mathrm{PCFAI}=\sqrt{\underset{i,j=0}{\overset{n,m}{\mathrm{\Σ}}}{\mathrm{FF}}^2(i,j)/m\×n+\underset{k=0}{\overset{p}{\mathrm{\Σ}}}{\mathrm{FFV}}^2\left(k\right)/p},$

Wherein m is the total number of statistics illegal command number of times total time section, n is the total number of total time section of statistics minimum time interval occurrence number, j is i section time corresponding to illegal command number of times, i is the minimum time interval occurrence number i section time, p is statistics effective instruction number of times total time section, k is k section time corresponding to effective instruction number of times, FF (i, j) be the invalid pain factor, rank by pain is divided into 1 to 10, FFV (k) is effective pain factor, has the pain rank to be divided into 1 to 10;

Be used for showing the step display of fuzzy mathematics computing results pain degree PCFAI.

Be used for the time period is numbered sequentially, increased 1 step from 0 open numbering at every turn.

The present invention compares with prior art, has solved the demand that can't satisfy the patient of dosing interval in the prior art, the interval of process optimization administration that can be by administration, thereby the safe and effective misery that alleviates the patient.

[specific embodiment]

In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention is further elaborated.Production equipment in the application is all the common equipment of this area, should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.

Embodiment 1:

Of the present invention comprising as lower device:

Be used for setting the setting device of analgesia PCA pump administration minimum time interval,

Be used for acceptance and open the device of the open command of analgesia PCA pump;

Be used for the judgment means of judgement open command, this judgment means comprises:

To open command for the first time and afterwards at least the open command of interval minimum time interval t be judged as the device of effective instruction,

And to be judged as the device of illegal command less than the open command in minimum time interval;

Be used for carrying out the actuating unit that effective instruction is opened analgesia PCA pump;

Be used for adding up respectively the statistic device of minimum time interval occurrence number, illegal command number of times and effective instruction number of times in a plurality of time periods;

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times according to the corresponding storage device that stores of time period sequencing;

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times are carried out the device that fuzzy mathematics is processed, this fuzzy mathematics formula is $\mathrm{PCFAI}=\sqrt{\underset{i,j=0}{\overset{n,m}{\mathrm{\Σ}}}{\mathrm{FF}}^2(i,j)/m\×n+\underset{k=0}{\overset{p}{\mathrm{\Σ}}}{\mathrm{FFV}}^2\left(k\right)/p},$

Wherein m is the total number of statistics illegal command number of times total time section, n is the total number of total time section of statistics minimum time interval occurrence number, j is i section time corresponding to illegal command number of times, i is the minimum time interval occurrence number i section time, p is statistics effective instruction number of times total time section, and k is k section time corresponding to effective instruction number of times;

Be used for showing the fuzzy mathematics computing display device of PCFAI as a result.

Said apparatus also has following prioritization scheme:

Also comprise and increased 1 device from 0 open numbering for the time period is numbered sequentially at every turn.

Also comprise:

Be used for setting the device of effective instruction number of times lower limit in certain hour;

Be used for setting the device of illegal command number of times higher limit in certain hour;

Be used for comparing the device of the interior effective instruction of certain hour and effective instruction lower limit;

Be used for comparing the device of the interior illegal command of certain hour and illegal command higher limit;

Be used for showing the interior effective instruction of certain hour for the effective instruction lower limit, and illegal command is for the display device of the comparative result of illegal command higher limit.

The present embodiment is realized by the following method:

In patient's need for analgesia situation, press the button of analgesia PCA pump, the administration of effectively easing pain of PCA pump.Effectively PCA is administered once, and claims once effectively PCA demand (PCA-valid, PCAV).

In patient's need for analgesia situation, press the PCA button, the PCA pump is forbidden the administration of easing pain, invalid administration.Invalid PCA is administered once, and claims once invalid PCA demand (PCA-invalid, PCAIV).

After the PCA administration, the PCA button is forbidden a period of time PCA-DeadTime, the PCADT of administration), in case the excessive administration of analgesic.

A) clinically, reach certain number of times (PCAI-shortage, PCAIS) based on invalid PCA demand in a period of time t, illustrate that the pain therapy analgesia is not enough.

B) at PCA in locking time, invalid PCA demand number of times reaches certain number of times (PCAI-shortage, PCAIS), illustrates that the pain therapy analgesia is not enough.

In long period T, effectively the PCA demand is less than certain number of times (PCAI-Overdose, PCAO), illustrates that the pain therapy analgesia is excessive.

T in certain hour, characterizing pain analgesic degree is PCA analgesia index (PCAI).

In the Principle of Pain situation, in different PCA operation (effectively with invalid) situation, the corresponding different pain analgesia factors (fuzzy factor, FF), the pain factor can give according to the degree of pain certain numerical value, is 1 to 10 as being set.

Controlled analgesia Fuzzy Exponential (patient-controlled fuzzy analgesia index, PCFAI): introduce misty idea, be used for describing pain analgesic effect degree.

Invalid PCA demand number of times (PCA invalid-count in the dead time, PCAIVCDT) in the last locking time

In recently a period of time (generally take one hour for), invalid PCA demand number of times (PCA-invalid count, PCAIVC(t)), the corresponding pain fuzzy factor that eases pain is FF(fuzzy factor, FF)

In recently a period of time (generally take one hour for), effective PCA demand number of times (PCA-valid count, PCAVC(t)), the corresponding pain fuzzy factor that eases pain is FFV.

Time observation window (Watch-time window, WT)

Observe the time period t of pain analgesic effect, can be divided into n PCADT time period, be called PCADT (n), PCADT (n-1) ..., PCADT (1), PCADT (0).In time period, it is PCAIVCDT(m that effective PCA number occurs at n PCADT (n)), corresponding pain analgesia fuzzy factor is FF(n, m).T in the time observation window, it is PCAVC(t that effective PCA number occurs)

In WT time observation window, invalid PCA demand number of times allows maximum times PCAIVCDT(max), when surpassing, think that the pain analgesia is not enough.

In WT time observation window, effectively PCA demand number of times allows maximum times PCAIVCDT(max), when surpassing, think that the pain analgesia is not enough.

Invalid PCA pain fuzzy factor is subordinate to table

In upper table, horizontal and vertical can be according to pain degree, according to the numerical value that the size of the pain factor adapts, know for this pain degree situation those skilled in the art, only need to according to size be numbered with as 1 to 10 or similarly numerical value get final product.

Effectively PCA pain fuzzy factor is subordinate to table

PCAVC	0	1	……	p-1	p
						FFV	FFV(0)	FFV(1)	……	FFV(p-1)	FFV(p)

Similar with invalid PCA pain fuzzy factor, effectively PCA pain fuzzy factor FFV also can give numerical value in this manner.

$\mathrm{PCFAI}=\sqrt{\underset{i,j=0}{\overset{n,m}{\mathrm{\Σ}}}{\mathrm{FF}}^2(i,j)/m\×n+\underset{k=0}{\overset{p}{\mathrm{\Σ}}}{\mathrm{FFV}}^2\left(k\right)/p},$ If consider the degree that invalid PCA and effective PCA estimate analgesic effect, can also add corresponding weight a and b.

As PCFAI higher than certain numerical value, think that the pain analgesia is not enough, by display, also can select the minimum time interval of manual adjustments administration, when thinking to drug overdose lower than certain numerical value, also can select the administration minimum time interval of manual adjusting analgesia PCA pump.

Claims (6)

1. analgesia PCA pump based on fuzzy mathematics judgement pain analgesia degree comprises:

Be used for setting the setting device of analgesia PCA pump administration minimum time interval,

Characterized by further comprising:

Be used for acceptance and open the device of the open command of analgesia PCA pump;

Be used for the judgment means of judgement open command, this judgment means comprises:

To open command for the first time and afterwards at least the open command of interval minimum time interval t be judged as the device of effective instruction,

And to be judged as the device of illegal command less than the open command in minimum time interval;

Be used for carrying out the actuating unit that effective instruction is opened analgesia PCA pump;

Be used for adding up respectively the statistic device of minimum time interval occurrence number, illegal command number of times and effective instruction number of times in a plurality of time periods;

Be used for setting the device of effective instruction number of times lower limit in certain hour;

Be used for setting the device of illegal command number of times higher limit in certain hour;

Be used for comparing the device of the interior effective instruction number of times of certain hour and effective instruction number of times lower limit;

Be used for comparing the device of the interior illegal command number of times of certain hour and illegal command number of times higher limit;

Be used for adjusting the adjusting device of administration minimum time interval, this device comprises:

Effective instruction number of times in certain hour is increased the device of administration minimum time interval during less than effective instruction number of times lower limit,

And the device that illegal command number of times in certain hour is reduced the administration minimum time interval during greater than illegal command number of times higher limit;

Be used for showing the interior effective instruction of certain hour for the effective instruction lower limit, and illegal command is for the display device of the comparative result of illegal command higher limit.

2. a kind of analgesia PCA pump based on fuzzy mathematics judgement pain analgesia degree as claimed in claim 1 is characterized in that this device also comprises:

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times according to the corresponding storage device that stores of time period sequencing;

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times are carried out the device that fuzzy mathematics is processed, this fuzzy mathematics formula is $\mathrm{PCFAI}=\sqrt{\underset{i,j=0}{\overset{n,m}{\mathrm{\Σ}}}{\mathrm{FF}}^2(i,j)/m\×n+\underset{k=0}{\overset{p}{\mathrm{\Σ}}}{\mathrm{FFV}}^2\left(k\right)/p},$ Wherein m is the total number of statistics illegal command number of times total time section, n is the total number of total time section of statistics minimum time interval occurrence number, j is i section time corresponding to illegal command number of times, i is the minimum time interval occurrence number i section time, p is statistics effective instruction number of times total time section, k is k section time corresponding to effective instruction number of times, FF (i, j) be the invalid pain factor, rank by pain is divided into 1 to 10, FFV (k) is effective pain factor, has the pain rank to be divided into 1 to 10;

Be used for showing the display device of fuzzy mathematics computing results pain degree PCFAI.

3. a kind of analgesia PCA pump based on fuzzy mathematics judgement pain analgesia degree as claimed in claim 2, characterized by further comprising for the time period is numbered sequentially, increased 1 device from 0 open numbering at every turn.

4. method based on the analgesia PCA pump of fuzzy mathematics judgement pain analgesia degree comprises:

Set the step of analgesia PCA pump administration minimum time interval,

Characterized by further comprising:

Be used for acceptance and open the step of the open command of analgesia PCA pump;

Be used for the determining step of judgement open command, this determining step comprises:

To open command for the first time and afterwards at least the open command of interval minimum time interval t be judged as the step of effective instruction,

And to be judged as the step of illegal command less than the open command in minimum time interval;

Be used for carrying out the execution in step that effective instruction is opened analgesia PCA pump;

Be used for adding up respectively the statistic procedure of minimum time interval occurrence number, illegal command number of times and effective instruction number of times in a plurality of time periods;

Be used for setting the step of effective instruction number of times lower limit in certain hour;

Be used for setting the step of illegal command number of times higher limit in certain hour;

Be used for comparing the step of the interior effective instruction number of times of certain hour and effective instruction number of times lower limit;

Be used for comparing the step of the interior illegal command number of times of certain hour and illegal command number of times higher limit;

Be used for adjusting the set-up procedure of administration minimum time interval, this step comprises:

Effective instruction number of times in certain hour is increased the step of administration minimum time interval during less than effective instruction number of times lower limit,

And the step that illegal command number of times in certain hour is reduced the administration minimum time interval during greater than illegal command number of times higher limit;

Be used for showing the interior effective instruction of certain hour for the effective instruction lower limit, and illegal command is for the step display of the comparative result of illegal command higher limit.

5. the method for a kind of analgesia PCA pump based on fuzzy mathematics judgement pain analgesia degree as claimed in claim 4 is characterized in that this step also comprises:

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times according to the corresponding storing step that stores of time period sequencing;

Be used for minimum time interval occurrence number, illegal command number of times and effective instruction number of times are carried out the step that fuzzy mathematics is processed, this fuzzy mathematics formula is $\mathrm{PCFAI}=\sqrt{\underset{i,j=0}{\overset{n,m}{\mathrm{\Σ}}}{\mathrm{FF}}^2(i,j)/m\×n+\underset{k=0}{\overset{p}{\mathrm{\Σ}}}{\mathrm{FFV}}^2\left(k\right)/p},$ Wherein m is the total number of statistics illegal command number of times total time section, n is the total number of total time section of statistics minimum time interval occurrence number, j is i section time corresponding to illegal command number of times, i is the minimum time interval occurrence number i section time, p is statistics effective instruction number of times total time section, k is k section time corresponding to effective instruction number of times, FF (i, j) be the invalid pain factor, rank by pain is divided into 1 to 10, FFV (k) is effective pain factor, has the pain rank to be divided into 1 to 10;

Be used for showing the step display of fuzzy mathematics computing results pain degree PCFAI.

6. a kind of method that judges the analgesia PCA pump of pain analgesia degree based on fuzzy mathematics as claimed in claim 5, characterized by further comprising for the time period is numbered sequentially, increased 1 step from 0 open numbering at every turn.