CN203001541U

CN203001541U - Pain stimulus device

Info

Publication number: CN203001541U
Application number: CN 201220726466
Authority: CN
Inventors: 王辉; 秋云海; 徐昊; 吴心音
Original assignee: Shenzhen Institute of Advanced Technology of CAS
Current assignee: Shenzhen Institute of Advanced Technology of CAS
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2013-06-19
Anticipated expiration: 2022-12-25

Abstract

The utility model provides a pain stimulus device which comprises a micro-injection pump, an index acquisition terminal, a pain assessment terminal, a feedback unit and a controller. The micro-injection pump is used for injecting hypertonic saline into a human body, the human body is stimulated to feel persistent pain, the index acquisition terminal is used for acquiring a subjective pain value of the human body in real time, the pain assessment terminal is connected with the index acquisition terminal, analyzes and assesses the pain according to the subjective pain value of the human body and predicts an assessed pain value at a next moment, the feedback unit is connected with the pain assessment terminal and feeds the assessed pain value to the controller, and the controller is connected with the feedback unit and the micro-injection pump and controls the injection speed of the micro-injection pump according to the assessed pain value. The pain stimulus device has the advantages that the injection speed of the micro-injection pump is regulated, so that the human body feels the constant and persistent pain to an expected degree, research and simulation for pain are greatly facilitated, the accuracy of the research for pain is improved, and a great improvement effect for treating pain is realized.

Description

Pain stimulating device

Technical field

This utility model relates to a kind of armarium, relates in particular to a kind of pain stimulating device.

Background technology

Pain is as one of the most general clinical symptoms, and is little of to patients ' life quality, all brought a lot of negative effects to patient and family members' health greatly.Treatment pain, impression and the variation of human body under the mechanism that necessary research pain produces and different pain degree.

At present, by stimulating human body to produce pain, the change of then observing human body behavior and manner judges pain degree to researcher mostly, research pain.But pain is a kind of offending subjective feeling and emotional experience, different from other coenesthesias (as audition, vision, olfactory sensation etc.), pain is subject to the impact of psychology and society factor to a great extent, there is no corresponding physical and chemical index, Pain Cognition is a subjective process, so method or technology are not measured pain effectively and accurately clinically.Pain visual imitation assessment VAS(VisualAnalog Scale) and types of facial makeup in Beijing operas method (The Faces pain Rating Scale) method of measuring in the world at present pain intensity has two kinds:, the former is judged the pain degree of oneself by patient, then delineates out corresponding mark; The latter delineates out the corresponding types of facial makeup in Beijing operas by the doctor according to patient's facial expression.The common shortcoming of these two kinds of methods is: patient's educational level, understandability to the bearing the factors such as degree patiently and all can have a huge impact measurement result of pain, thereby make result objective not, accurate.Simultaneously, different people has different experience to pain, different judgements, and subjectivity is strong.The difficulty that pain intensity is measured and the subjectivity characteristics of pain make the lasting constant pain that is difficult to make expected degree, thereby bring very big inconvenience for research pain.

The utility model content

Based on this, being necessary the problem that is difficult to make the lasting constant pain of expected degree for above-mentioned provides a kind of pain stimulating device that can make the lasting constant pain of expected degree.

a kind of pain stimulating device comprises micro-injection pump, index selection terminal, pain Assessment terminal, feedback unit and controller, described micro-injection pump is used for to human injection's hypertonic saline, stimulate human body to produce constant pain, described index selection terminal is used for the subjective pain value of Real-time Obtaining human body, described pain Assessment terminal is connected with described index selection terminal, pain value subjective according to human body carried out assessment and analysis to pain, predict next pain Assessment value constantly, described feedback unit is connected with described pain Assessment terminal, the pain Assessment value is fed back to described controller, described controller is connected with micro-injection pump with described feedback unit, control the injection speed of described micro-injection pump according to the pain Assessment value.

Therein in embodiment, shown in micro-injection pump controlled by USB or RS232 serial port protocol.

Therein in embodiment, shown in the micro-injection pump minimum injection rate be 0.1UL/min, the syringe of compatible 5-50ML specification.

Therein in embodiment, shown in the index selection terminal obtain the subjective pain value of subjects by pain visual imitation assessment, described pain Assessment terminal is by carrying out time series modeling to subjective pain value, build autoregression model, find the solution the coefficient of autoregression model, predict next pain Assessment value of subjects constantly.

In embodiment, described index selection terminal realizes pain visual imitation assessment by the form of animation therein.

In embodiment, described pain stimulating device also comprises with the pain Assessment terminal and being connected, and is used for showing the display terminal of pain Assessment value therein.

Above-mentioned pain stimulating device, produce constant pain to human injection's hypertonic saline, the subjective pain value of Real-time Obtaining human body is carried out assessment and analysis to pain, predict next moment pain Assessment value and feed back to controller, controller is controlled the injection speed of micro-injection pump according to the pain Assessment value, thereby regulate the injection speed of micro-injection pump, obtain the constant and lasting pain of expected degree, research and simulation to pain have greatly been facilitated, improve the accuracy of pain research, played great impetus for treatment pain.

Description of drawings

Fig. 1 is the structural representation of pain stimulating device in an embodiment;

Fig. 2 is pain visual imitation assessment interface schematic diagram in an embodiment.

The specific embodiment

Fig. 1 is the structural representation of pain stimulating device in an embodiment.This pain stimulating device comprises micro-injection pump 100, index selection terminal 200, pain Assessment terminal 300, feedback unit 400 and controller 500.Micro-injection pump 100 is used for to human injection's hypertonic saline, stimulates human body to produce constant pain.Index selection terminal 200 is used for the subjective pain value of Real-time Obtaining human body.Pain Assessment terminal 300 is connected with index selection terminal 200, and pain value subjective according to human body carried out assessment and analysis to pain, predicts next pain Assessment value constantly.Feedback unit 400 is connected with pain Assessment terminal 300, and the pain Assessment value is fed back to controller 500.Controller 500 is connected with micro-injection pump with feedback unit 400 and is connected, and controls the injection speed of micro-injection pump 100 according to the pain Assessment value, produces the lasting constant pain of expected degree.

In this embodiment, micro-injection pump 100 is controlled by USB or RS232 serial port protocol, minimum injection rate 0.1UL/min, the syringe of compatible 5-50ML specification, has omnibearing security alerting system (comprise that syring inaccurate installation, syringe clamping are incorrect, residual prompting, injection are complete, obstruction, limit amount are forgotten to, power line from dropping, battery undervoltage, running down of battery, start etc.), safe bolus F.F. lock function.

Index selection terminal 200 is obtained the subjective pain value of subjects by pain visual imitation assessment (VAS).Subjects's subjective pain value adopts pain visual imitation assessment to represent, the implication of pain visual imitation assessment (VAS) is as follows: score value is 0 o'clock, and expression does not have pain (No Pain) fully; Score value is 0 ~ 2 o'clock, expression mild pain (Mild Pain); Score value is 2 ~ 4 o'clock, expression moderate pain (Moderate Pain); Score value is 4 ~ 6 o'clock, expression severe pain (Severe Pain); Score value is 6 ~ 8 o'clock, represents very serious pain (Very Severe); Score value is 10 o'clock, represents complete intolerable pain.

Index selection terminal 200 realizes pain visual imitation assessment by the form of animation.As shown in Figure 2, place computer screen in face of the subjects, show that the sign of subjective pain value rises to point out the VAS value from the bottom, the bottom represents 0 minute, and the top represents 10 minutes.The subjects at set intervals, such as carrying out a pain vision scoring in 15 seconds.After the scoring beginning, the subjects clicks keyboard or mouse, and red cloth sign stops rising immediately, and the VAS of expression is automatically recorded and preserves by computer.Bottommost pain value representation VAS=0 illustrates without any pain.Top pain value representation VAS=10 illustrates the highest intolerable pain value fully.Subjective pain value will be used as under the VAS value record.Because human body depends on to the subjective scoring of pain the subjective judgment that human body is current, there is intrinsic noise in index selection terminal 200, and the VAS of collection will first pass through low pass filter.

Pain Assessment terminal 300 builds autoregression model (AR) by subjective pain value is carried out time series modeling, finds the solution the coefficient of autoregression model, predicts next pain Assessment value of subjects constantly.Feedback unit 400 feeds back to controller 500 with the pain Assessment value.Controller 500 is controlled the injection speed of micro-injection pump 100 according to the pain Assessment value.

In addition, this pain stimulating device also comprises the display terminal 600 that is connected with the pain Assessment terminal, is used for showing the pain Assessment value.

This pain stimulating device, micro-injection pump 100 is used for to human injection's hypertonic saline, stimulates human body to produce constant pain.index selection terminal 200 is passed through pain visual imitation assessment, the subjective pain value of Real-time Obtaining human body, pain Assessment terminal 300 is by carrying out time series modeling to the subjective pain value of human body, build autoregression model, find the solution the coefficient of autoregression model, predict next pain Assessment value of subjects constantly, and give feedback unit 400, feedback unit 400 feeds back to controller 500 with the pain Assessment value, controller 500 is controlled the injection speed of micro-injection pump 100 according to the pain Assessment value, thereby regulate the injection speed of micro-injection pump 100, obtain the constant and lasting pain of expected degree, research and simulation to pain have greatly been facilitated, improved the accuracy of pain research, played great impetus for treatment pain.

The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to this utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.

Claims

1. a pain stimulating device, is characterized in that, comprises micro-injection pump, index selection terminal, pain Assessment terminal, feedback unit and controller, described micro-injection pump is used for to human injection's hypertonic saline, stimulate human body to produce constant pain, described index selection terminal is used for the subjective pain value of Real-time Obtaining human body, described pain Assessment terminal is connected with described index selection terminal, pain value subjective according to human body carried out assessment and analysis to pain, predict next pain Assessment value constantly, described feedback unit is connected with described pain Assessment terminal, the pain Assessment value is fed back to described controller, described controller is connected with micro-injection pump with described feedback unit, control the injection speed of described micro-injection pump according to the pain Assessment value.

2. pain stimulating device according to claim 1, is characterized in that, shown in micro-injection pump controlled by USB or RS232 serial port protocol.

3. pain stimulating device according to claim 2, is characterized in that, shown in the micro-injection pump minimum injection rate be 0.1UL/min, the syringe of compatible 5-50ML specification.

4. pain stimulating device according to claim 1, it is characterized in that, shown in the index selection terminal obtain the subjective pain value of subjects by pain visual imitation assessment, described pain Assessment terminal is by carrying out time series modeling to subjective pain value, build autoregression model, find the solution the coefficient of autoregression model, predict next pain Assessment value of subjects constantly.

5. pain stimulating device according to claim 4, is characterized in that, described index selection terminal realizes pain visual imitation assessment by the form of animation.

6. pain stimulating device according to claim 1, is characterized in that, described pain stimulating device also comprises with the pain Assessment terminal and being connected, and is used for showing the display terminal of pain Assessment value.