CN106236020B - A kind of blood flow state detection device, system and method - Google Patents
A kind of blood flow state detection device, system and method Download PDFInfo
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- CN106236020B CN106236020B CN201610755682.6A CN201610755682A CN106236020B CN 106236020 B CN106236020 B CN 106236020B CN 201610755682 A CN201610755682 A CN 201610755682A CN 106236020 B CN106236020 B CN 106236020B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6832—Means for maintaining contact with the body using adhesives
- A61B5/6833—Adhesive patches
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
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Abstract
The present invention provides a kind of blood flow state detection devices, system and method, the blood flow state detection device includes: alternating voltage offer portion, at least a pair of of detecting electrode and test section, wherein, alternating voltage offer portion, it include: at least a pair of of alternating voltage port, every a pair of alternating voltage port is connected with a pair of of detecting electrode, for exporting alternating voltage for a pair of of detecting electrode；Every a pair of of detecting electrode extremely includes adhesion layer at least a pair of of detecting electrode；Every a pair of detecting electrode adheres to skin surface by adhesion layer, for receiving the alternating voltage of alternating voltage offer portion output；Test section, for when alternating voltage offer portion is that at least a pair of of detecting electrode provides alternating voltage, the impedance variations value detected in the circuit that every a pair of of detecting electrode is formed to determine blood flow state according to impedance variations value.Scheme provided by the invention realizes while detecting thrombus and leakage blood.
Description
Technical field
The present invention relates to medical equipment technical field, in particular to a kind of blood flow state detection device, system and method.
Background technique
During carrying out medical surgery, doctor marks wound often through scalpel, so as to uncover out to operative site
Come, medical staff is facilitated to be operated.And after the procedure is completed, doctor also needs to carry out wound to suture etc. operation,
To guarantee that wound site blood flow is normal, gradually heal.So, it is carried out in agglutination in wound, it is often necessary to moment observation wound
Whether mouth has leakage blood or thrombus to happen.
Currently, mainly by emitting the generation light of fixed wave length into blood vessel, and the reflected light of return is received to detect blood
In pipe the case where thrombus, existing this thrombus detection mode can not simultaneously be detected leakage blood.
Summary of the invention
The embodiment of the invention provides a kind of blood flow state detection devices, system and method, realize while detecting thrombus
With leakage blood.
A kind of blood flow state detection device, comprising: alternating voltage offer portion, at least a pair of of detecting electrode and test section,
In,
Alternating voltage offer portion, comprising: at least a pair of of alternating voltage port, wherein every a pair of alternating voltage port
It is connected with a pair of of detecting electrode, for exporting alternating voltage for the pair of detecting electrode；
Every a pair of of detecting electrode extremely includes adhesion layer at least a pair of of detecting electrode；
Every a pair of detecting electrode adheres to skin surface by the adhesion layer, provides for receiving the alternating voltage
The alternating voltage of portion's output；
The test section, for providing alternating voltage when alternating voltage offer portion at least a pair of of detecting electrode
When, the impedance variations value detected in the circuit that every a pair of of detecting electrode is formed determines blood flow shape according to the impedance variations value
State.
Preferably, alternating voltage offer portion, comprising: transformer, wherein
The transformer is connected with the power supply system of peripheral hardware, the first alternation that the power supply system for receiving peripheral hardware inputs
Voltage, and first alternating voltage is converted into the second alternating voltage；
Every a pair of of detecting electrode, for receiving the second alternating voltage of alternating voltage offer portion output.
Preferably, test section, comprising: current detector, computation subunit and judgment sub-unit, wherein
The current detector, the initial current generated for detecting every a pair of of detecting electrode, and the every a pair of real-time detection
The running current of detecting electrode；
The computation subunit, initial current and corresponding operation electricity for being detected according to the current detector
Stream calculates the impedance variations value in the circuit that every a pair of of detecting electrode is formed using following calculation formula (1)；
Wherein,J-th of impedance variations value characterizing n-th between of detecting electrode of current detector detection；U characterization is handed over
The alternating voltage of time variant voltage offer portion output；In0Characterize the initial current of n-th pair of detecting electrode of current detector detection；Inj
J-th of running current value n-th between of detecting electrode of current detector detection；
The judgment sub-unit when impedance variations value for being calculated when the computation subunit is less than zero, determines
Leak blood；When the impedance variations value that the computation subunit is calculated is greater than zero, thrombus is determined；When the computation subunit meter
When obtained impedance variations value is equal to zero, determine that blood flow is normal.
Preferably, the judgment sub-unit determines continuous small for first threshold, second threshold and third threshold value to be arranged
In first number of the impedance variations value that the computation subunit of the first threshold is calculated, first number is judged
Whether the third threshold value is greater than, if it is, determining leakage blood；It determines continuously single greater than the calculating of the second threshold
Second number of the impedance variations value that member is calculated, judges described and whether number is greater than the third threshold value, if so,
Then determine leakage blood.
Preferably, the test section further comprises: signal adapter and display, wherein
The signal adapter, the impedance variations value for the computation subunit to be calculated, is converted into corresponding
Electric signal, and the electric signal is exported to the display；
The display for receiving the electric signal of the signal adapter output, and exports telecommunications sequentially in time
Number, form display waveform.
Preferably, above-mentioned blood flow state detection device is applied to wound blood flow state and detects；
Every a pair of of detecting electrode adhesion locations are away from wound edge 0-10cm；
The line of first detecting electrode adhesion locations and the first detecting electrode adhesion locations in every a pair of of detecting electrode
Across the wound.
Preferably, the test section is connected with the alarm system of peripheral hardware,
When the test section determines blood flow state to leak blood, the alarm system alarm of the peripheral hardware is triggered；
And/or
When the test section determines that blood flow state is thrombus, the alarm system alarm of the peripheral hardware is triggered.
A kind of blood flow state detection system, comprising: any of the above-described blood flow state detection device, power supply system and the report
Alert system, wherein
The power supply system, the first alternating voltage for being inputted for the blood flow state detection device；
The alarm system, for alarming when receiving the triggering of the blood flow state detection device.
A kind of blood flow state detection method, every a pair of detecting electrode adhere to skin surface by adhesion layer, further includes:
Every a pair of detecting electrode receives alternating voltage；
Detect the impedance variations value in the circuit that every a pair of of detecting electrode is formed；
According to the impedance variations value, blood flow state is determined.
Preferably, the impedance variations value in circuit that every a pair of of the detecting electrode of the detection is formed, comprising: detect every a pair
The initial current that detecting electrode generates, and the running current of every a pair of of the detecting electrode of real-time detection；
Every a pair of of inspection is calculated using following calculation formula (1) according to the initial current and corresponding running current detected
Survey the impedance variations value in the circuit that electrode is formed；
Wherein,J-th of impedance variations value characterizing n-th between of detecting electrode of current detector detection；U characterization is handed over
The alternating voltage of time variant voltage offer portion output；In0Characterize the initial current of n-th pair of detecting electrode of current detector detection；Inj
J-th of running current value n-th between of detecting electrode of current detector detection.
Preferably, the above method further comprises: setting first threshold, second threshold and third threshold value；
It is described according to the impedance variations value, determine blood flow state, comprising:
When the impedance variations value is less than the first threshold, the impedance variations for being continuously less than the first threshold are determined
First number of value；
Judge whether first number is greater than the third threshold value, if it is, determining leakage blood；
When the impedance variations value is greater than described the and threshold value, determines and continuously become greater than the impedance of the second threshold
Second number of change value；
Described the is judged and whether number is greater than the third threshold value, if it is, determining leakage blood.
The embodiment of the invention provides a kind of blood flow state detection device, system and method, the blood flow state detection device,
It is connected by every a pair of of alternating voltage port in alternating voltage offer portion with corresponding a pair of of detecting electrode, is corresponding a pair
Detecting electrode exports alternating voltage；And every a pair of of detecting electrode extremely includes adhesion layer, every a pair of detecting electrode can pass through
Adhesion layer adheres to skin surface, since human body is a conductor, then, when two electrodes adhere on human body, two electrodes
Human body between two electrodes constitutes closed circuit, then when to receive alternating voltage offer portion defeated for a pair of of detecting electrode
When alternating voltage out, there will be electric current to be placed through the human body between two electrodes, and the size of electric current is by two electrodes
Between human body in blood flow state (blood flow is normal, leakage blood and thrombus) influence, i.e., (blood flow is just for different blood flow states
Often, blood and thrombus are leaked) different impedance values is generated for closed circuit, then, when alternating voltage offer portion is described at least a pair of
When detecting electrode provides alternating voltage, the impedance variations value in the circuit that every a pair of of detecting electrode is formed is detected by test section,
According to impedance variations value, blood flow state is determined, realize while detecting thrombus and leakage blood.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of blood flow state detection device provided by one embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram for blood flow state detection device that another embodiment of the present invention provides；
Fig. 3 is a kind of structural schematic diagram for blood flow state detection device that another embodiment of the invention provides；
Fig. 4 is the schematic diagram for the blood flow state that a kind of display provided by one embodiment of the present invention is shown；
Fig. 5 is a kind of structural schematic diagram of blood flow state detection system provided by one embodiment of the present invention；
Fig. 6 is a kind of flow chart of blood flow state detection method provided by one embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram for blood flow state detection system that another embodiment of the present invention provides；
Fig. 8 is a kind of flow chart for blood flow state detection method that another embodiment of the present invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of blood flow state detection device, and the blood flow state detection device, packet
It includes: alternating voltage offer portion 101, at least a pair of of detecting electrode 102 and test section 103, wherein
Alternating voltage offer portion 101, comprising: at least a pair of of alternating voltage port 1011, wherein every a pair of alternation electricity
Pressure side mouth 1011 is connected with a pair of of detecting electrode 102, for exporting alternating voltage for the pair of detecting electrode 102；
Every a pair of of detecting electrode extremely includes adhesion layer 1021 at least a pair of of detecting electrode 102；
Every a pair of detecting electrode 102 adheres to skin surface by the adhesion layer 1021, for receiving the alternation electricity
The alternating voltage for pressing offer portion 101 to export；
The test section 103, for being that at least a pair of of detecting electrode 102 mentions when alternating voltage offer portion 101
When for alternating voltage, the impedance variations value in the circuit that every a pair of of detecting electrode 102 is formed is detected, according to the impedance variations
Value, determines blood flow state.
In the embodiment shown in fig. 1, by every a pair of of alternating voltage port in alternating voltage offer portion with it is corresponding
A pair of of detecting electrode is connected, and exports alternating voltage for corresponding a pair of of detecting electrode；And every a pair of of detecting electrode extremely includes
Adhesion layer, every a pair of detecting electrode can adhere to skin surface by adhesion layer, since human body is a conductor, then, when
Two electrodes adhere on human body, and the human body between two electrodes and two electrodes constitutes closed circuit, then working as a pair
When detecting electrode receives the alternating voltage of alternating voltage offer portion output, there will be electric current to be placed through the people between two electrodes
Body region, and the size of electric current is by the blood flow state in the human body between two electrodes (blood flow is normal, leaks blood and thrombus)
Influence, i.e., different blood flow state (blood flow is normal, leakage blood and thrombus) is that closed circuit generates different impedance values, then,
When alternating voltage offer portion provides alternating voltage at least a pair of of detecting electrode, every a pair of of detection is detected by test section
Electrode formed circuit in impedance variations value blood flow state is determined according to impedance variations value, realize at the same detect thrombus with
Leak blood.
In an alternative embodiment of the invention, alternating voltage offer portion 101, comprising: transformer (not shown),
In,
The transformer is connected with the power supply system of peripheral hardware, the first alternation that the power supply system for receiving peripheral hardware inputs
Voltage, and first alternating voltage is converted into the second alternating voltage；
Every a pair of of detecting electrode 102, for receiving the second alternating voltage of alternating voltage offer portion output.
By above-mentioned transformer, what the 220V voltage of the power supply system of peripheral hardware can be changed into human body can bear is less than
Voltage value such as 10V, 5V, 1V of 24V etc..
It in an alternative embodiment of the invention, can be in order to guarantee through the electric current of human body within human body tolerance range
The resistance of fixed size is set between every a pair of of detecting electrode 102 and transformer, which guarantees the voltage of transformer output
When passing through closed circuit, the electric current of generation is within human body tolerance range.
On the other hand, in order to guarantee through body current within human body tolerance range, can also transformer with it is each
It is switched to intelligence control is arranged between detecting electrode 102, current threshold is set for intelligence control switch, when the current value in circuit is greater than the electricity
When flowing threshold value, the intelligence control switch circuit breaking, to realize the protection to human body.
As shown in Fig. 2, in still another embodiment of the process, test section 103, comprising: current detector 201 calculates son list
Member 202 and judgment sub-unit 203, wherein
The current detector 201, the initial current generated for detecting every a pair of of detecting electrode 102, and real-time detection
The running current of every a pair of detecting electrode 102；
The computation subunit 202, initial current and corresponding fortune for being detected according to the current detector 201
Row electric current calculates the impedance variations value in the circuit that every a pair of of detecting electrode 102 is formed using following calculation formula (1)；
Wherein,J-th of impedance variations value characterizing n-th between of detecting electrode of current detector detection；U characterization is handed over
The alternating voltage of time variant voltage offer portion output；In0Characterize the initial current of n-th pair of detecting electrode of current detector detection；Inj
J-th of running current value n-th between of detecting electrode of current detector detection；
The judgment sub-unit 203, the impedance variations value for being calculated when the computation subunit 202 is less than zero
When, determine leakage blood；When the impedance variations value that the computation subunit 202 is calculated is greater than zero, thrombus is determined；When the meter
When the impedance variations value that operator unit 202 is calculated is equal to zero, determine that blood flow is normal.
In this embodiment, when default blood flow state detection device is just switched on human body, test section is detected each
Current value to detecting electrode is initial current, if blood flow is constantly in stable state, every a pair of test section real-time detection
The running current of detecting electrode is identical as initial current value, and when occurring leaking blood, blood flow velocity is accelerated, with blood flow when original state
The impedance value of generation is compared, and the impedance value that blood flow generates in blood vessel can be reduced, thus, make calculation formula (1), the impedance of calculating becomes
Change value is less than zero, i.e., when the impedance variations value that the computation subunit is calculated is less than zero, determines leakage blood.If detecting
Electrode is to there is thrombus in the blood vessel in detection position, i.e. blood density increases, and blood flow velocity slows down, with blood when original state
The raw impedance value of miscarriage is compared, and will increase the impedance value that blood flow generates in blood vessel, thus, make calculation formula (1), the impedance of calculating
Changing value is greater than zero, i.e., when the impedance variations value that the computation subunit is calculated is greater than zero, determines thrombus.Due to electric current
Detector is the running current of every a pair of of the detecting electrode of real-time detection, to guarantee blood flow state inspection provided in an embodiment of the present invention
Measurement equipment can find leakage blood or thrombus in time, to remind patient or doctor to handle in time.
In an embodiment of the invention, in order to guarantee detection accuracy, the judgment sub-unit 203, for being arranged
First threshold, second threshold and third threshold value are determined and are continuously calculated less than the computation subunit of the first threshold
Impedance variations value first number, judge first number whether be greater than the third threshold value, if it is, determine leakage
Blood；Second number for determining the impedance variations value being continuously calculated greater than the computation subunit of the second threshold, sentences
Break described the and whether number is greater than the third threshold value, if it is, determining leakage blood.Due in measurement process or reflux
The fluctuation etc. that the influence for the change in impedance value that other positions such as skin generates or current detector generate, inevitably will cause electricity
The running current that current sensor measures is fluctuated, and the first threshold of the judgment sub-unit setting in the embodiment, second are passed through
Threshold value and third threshold value, have evaded the current fluctuation as caused by extraneous factor.Such as: setting first threshold be -10 Ω, second
Threshold value is 10 Ω, and third threshold value is 15, and the m that computation subunit calculates becomes continuous 15 impedances that detecting electrode generates
Change value be 0 Ω, -1 Ω, 0 Ω, -2 Ω, -1 Ω, 0 Ω, -1 Ω, 1 Ω, 0 Ω, -1 Ω, 1 Ω, -10 Ω, -5 Ω, 0 Ω, -1 Ω, 1
Ω }, from this it can be seen that continuous 15 impedance variations values in only one reach -10 Ω of first threshold, then at this
In 15 detection time sections, blood flow state is normal.For another example: the continuous impedance variations value of another set be -10 Ω, -11 Ω, -
10 Ω, -12 Ω, -11 Ω, -11 Ω, -12 Ω, -13 Ω, -14 Ω, -13 Ω, -10 Ω, -15 Ω, -15 Ω, -16 Ω, -15
Ω, -16 Ω, -10 Ω, -11 Ω, -12 Ω }, and the impedance variations value for being continuously less than -10 Ω of first threshold reaches 19, surpasses
Third threshold value has been crossed, then has illustrated that leakage blood occurs in blood vessel.In embodiments of the present invention, it can count continuous by setting timer
Impedance variations value is less than the number of first threshold or counts the number that continuous impedance variations value is greater than second threshold, such as:
When the continuous impedance variations value of counters count is greater than the number of second threshold, second impedance is calculated in computation subunit
Changing value is greater than 10 Ω, then timer carries out for it plus 1 operates, and next computation subunit calculates second impedance variations
Next impedance variations value (third impedance variations value) of value is less than 10 Ω, then impedance variations value does not go out continuously greater than 10 Ω
Existing, then timer is reset；When computation subunit calculates the 5th impedance variations value greater than 10 Ω, then timer is added for it
1 operation, and next computation subunit calculates next changing value (the 6th impedance variations of the 6th impedance variations value
Value) 10 Ω are still greater than, then timer carries out for it plus 1 operation, counters count number are 2；Computation subunit calculates the 7th
10 Ω are still greater than in a impedance variations value, then timer carries out for it plus 1 operation, counters count number are 3 etc..Only work as
Impedance variations value is less than first threshold, also, (should continuously be less than less than the impedance variations value certain time of first threshold
The number of the impedance variations value of first threshold reaches third threshold value) just determine that blood vessel leaks blood；When impedance variations value is greater than third threshold
Value, also, (should continuously be greater than the impedance variations value of third threshold value greater than the impedance variations value certain time of third threshold value
Number reach third threshold value) just determine blood vessel there is thrombus, thus guarantee detection accuracy.
As shown in figure 3, in an alternative embodiment of the invention, the test section further comprises: 301 He of signal adapter
Display 302, wherein
The signal adapter 301, the impedance variations value for the computation subunit 202 to be calculated, is converted into
Corresponding electric signal, and the electric signal is exported to the display 302；
The display 302, the electric signal exported for receiving the signal adapter 301, and it is defeated sequentially in time
Electric signal out forms display waveform.It can be converted to pair with signal adapter according to the size of impedance variations value in this embodiment
The power for the electric signal answered, such as: impedance variations value is 0 Ω, and corresponding signal intensity value size is 0Hz, and impedance variations value is
10 Ω, corresponding change in electric value are 20Hz, and impedance variations value is -10 Ω, and corresponding electric signal size is -20Hz, such as Fig. 4
It is shown, wherein Fig. 4 A is the waveform for the electric signal composition that display is shown when generating leakage blood；Fig. 4 B is display when generating leakage blood
The waveform for the electric signal composition that device is shown；I.e. when generating leakage blood, electric signal size is in -20Hz and following holding certain time；
When generating thrombus, electric signal size keeps certain time in 20Hz or more.
It is worth noting that can turn in signal in order to guarantee that display shows that the otherness of signal is obvious
Setting signal amplifier between parallel operation and display realizes the amplification to signal, so that display shows the amplified letter of signal
Number, so that medical staff be facilitated to check.
In an alternative embodiment of the invention, above-mentioned blood flow state detection device is applied to wound blood flow state and detects, realizes
Wound blood flow state is detected, with the state of lasting monitoring wound, facilitates medical staff to handle wound in time, protects
Demonstrate,prove the safety of patient.In this process, every a pair of of detecting electrode adhesion locations are away from wound edge 0-10cm；It is described each
The wound, the mistake are passed through to the line of the first detecting electrode adhesion locations in detecting electrode and the first detecting electrode adhesion locations
Journey guarantees that electric current passes through wound, to realize the detection to wound blood flow state.
In an embodiment of the invention, in order to remind medical staff or patient in time, above-mentioned blood flow state is detected
Test section in equipment is connected with the alarm system of peripheral hardware；When the test section determines blood flow state to leak blood, described in triggering
The alarm system of peripheral hardware is alarmed；When the test section determines that blood flow state is thrombus, the alarm system report of the peripheral hardware is triggered
It is alert, so that can be learned in time, and nursed accordingly when leaking blood or thrombus occurs.
As shown in figure 5, the embodiment of the present invention provides a kind of blood flow state detection system, which includes: any of the above-described institute
Blood flow state detection device 501, power supply system 502 and the alarm system 503 stated, wherein
The power supply system 502, the first alternating voltage for being inputted for the blood flow state detection device 501；
The alarm system 503, for alarming when receiving the triggering of the blood flow state detection device 501.
As shown in fig. 6, this method may include following step the embodiment of the invention provides a kind of blood flow state detection method
It is rapid:
Step 601: every a pair of detecting electrode adheres to skin surface by adhesion layer；
Step 602: every a pair of detecting electrode receives alternating voltage；
Step 603: the impedance variations value in circuit that every a pair of of the detecting electrode of detection is formed；
Step 604: according to the impedance variations value, determining blood flow state.
Due to the difference of blood flow state in blood vessel, blood flow can be made to have with the impedance value in the circuit of a pair of of detecting electrode building
Institute's difference, i.e. blood flow state change, and impedance value can be made also to change accordingly, then, pass through the impedance variations value, Ji Keding
Property determination blood flow state variation, such as formed thrombus when, impedance value can be made to increase, leak blood when impedance value can be made to reduce, thus
It realizes while detecting leakage blood and thrombus.
In an embodiment of the invention, become in order to get the impedance in the circuit that every a pair of of detecting electrode is formed
Change value, the specific embodiment of step 603, comprising: the initial current that every a pair of of the detecting electrode of detection generates, and real-time detection is every
The running current of a pair of of detecting electrode；It is public using following calculating and according to the initial current and corresponding running current detected
Formula (1) calculates the impedance variations value in the circuit that every a pair of of detecting electrode is formed；
Wherein,J-th of impedance variations value characterizing n-th between of detecting electrode of current detector detection；U characterization is handed over
The alternating voltage of time variant voltage offer portion output；In0Characterize the initial current of n-th pair of detecting electrode of current detector detection；Inj
J-th of running current value n-th between of detecting electrode of current detector detection.
Since the running current that the above process is every a pair of of the detecting electrode of real-time detection such as detects primary operation electricity every 1s
Stream, then, by the real-time change of the available circuit middle impedance changing value of calculation formula (1), to guarantee the accurate of detection
Property.
In an embodiment of the invention, in order to guarantee the accuracy of blood flow state judgement, the above method is further
It include: setting first threshold, second threshold and third threshold value；The specific embodiment of step 604, comprising: when the impedance becomes
When change value is less than the first threshold, determine continuously less than first number of the impedance variations value of the first threshold；Judge institute
State whether first number is greater than the third threshold value, if it is, determining leakage blood；Be greater than described the when the impedance variations value and
When threshold value, determine continuously greater than second number of the impedance variations value of the second threshold；Judge described and whether is number
Greater than the third threshold value, if it is, determining leakage blood.Since impedance variations value obtains in real time, only work as impedance variations
Value continuously continues the regular hour except a certain threshold value and is just determined as leakage blood or thrombus, and a other extrernal resistance in a certain threshold value
Caused by anti-changing value may be the error generated as processes such as detections, by the embodiment continuously in threshold value
Except impedance variations value number (less than the number of the impedance variations value of first threshold, alternatively, be greater than first threshold impedance
The number of changing value) it is considered as the duration, it realizes true by two parameters of size and duration of impedance variations value
Blood status is determined, to guarantee the accuracy of determining blood status.
In an embodiment of the invention, in order to more intuitively showing impedance variations value with the change of detection time
Change, the above method further comprises: the impedance variations value that will be calculated is converted into corresponding electric signal, and pass through display
Electric signal is exported sequentially in time, forms display waveform, and medical staff can be clearly seen that resistance by the variation of the waveform
The variation of anti-changing value, to intuitively obtain the variation of blood flow state.
In an embodiment of the invention, above-mentioned blood flow state detection method is detected applied to wound blood flow state；It is described
Every a pair of detecting electrode adhesion locations are away from wound edge 0-10cm；The first detecting electrode adheres to position in every a pair of of detecting electrode
It sets and passes through the wound with the line of the first detecting electrode adhesion locations, to guarantee that electric current by wound, is realized to wound blood
Stream mode is detected.
It is worth noting that the above process is the state realization in alternating voltage, which can be to avoid to blood flow
The influence of state.
By taking blood flow state detection system shown in Fig. 7 detects the blood flow state of a certain wound as an example, explanation is unfolded
Blood flow state detection method, as shown in figure 8, the blood flow state detection method may comprise steps of:
Step 800: blood flow state detection device is connected respectively to power supply system and alarm system；
As shown in fig. 7, blood flow state detection system includes: blood flow state detection device 701, power supply system 702 and alarm
System 703, wherein blood flow state detection device 701 includes at least a pair of of detecting electrode, in embodiments of the present invention, with two pairs
It is for electrode, i.e., shown in Fig. 7 to be identified as 7011 electrode and (electrode a and electrode b) and be identified as 7012 electrode to 2 (electricity to 1
Pole c and electrode d), wherein include an anode and a cathode in every a pair of electrodes, since power supply system 702 provides friendship
Time variant voltage, then as the variation of alternating voltage changes between the anode and cathode in every a pair of electrodes.It is due to currently powering
The voltage of system is generally 220V, human safety voltage is exported in order to be embodied as above-mentioned two pairs of electrodes 7011 and 7012, in two pairs of electricity
Transformer 7013 is set between pole 7011 and 7012 and power supply system, in order to realize to two pairs of electrodes 7011 and 7012 and wound shape
At circuit in electric current detection, include test section 7015 in blood flow state detection device 701, in the test section 7015,
It include: current detector 70151, computation subunit 70152, judgment sub-unit 70153, signal adapter 70154 and display
70155, the detection to blood status is realized by each subelement in the test section 7015, specific connection type is from Fig. 7
In can intuitively find out, details are not described herein.
Step 801: setting first threshold, second threshold and third threshold value；
It is leakage blood threshold value in the first threshold of step setting, i.e., when impedance variations value is less than the first threshold, explanation
Wound may have leakage blood situation to generate, and second threshold is thrombus threshold value, i.e., when impedance variations value is greater than the second threshold, explanation
Wound may have the generation of thrombus situation, and the determination for leaking blood and thrombus is also needed through third threshold value, i.e., ought continuously be less than this
The number that the impedance variations value of one threshold value occurs reaches third threshold value, then illustrates that leakage blood situation occurs in wound；It should when being continuously greater than
The number that the impedance variations value of second threshold occurs reaches third threshold value, then illustrates that thrombus situation occurs in wound.
Step 802: by least a pair of of detecting electrode in blood flow state detection device by adhesion layer, adhering to outside wound
The skin surface enclosed；
As shown in fig. 7,2 pairs of detecting electrodes 7011 and 7012 are adhered to respectively around wound 704, meanwhile, make every a pair
Detecting electrode adhesion locations are away from wound edge 0-10cm, to guarantee the accuracy detected to wound, in addition, every a pair of detecting electrode
In the lines of the first detecting electrode adhesion locations and the first detecting electrode adhesion locations pass through the wound.It can from Fig. 7
Out, detecting electrode passes through wound 704 to the line L of detecting electrode a and detecting electrode b in 7011；Detecting electrode is to examining in 7012
The line P for surveying electrode c and detecting electrode d passes through wound 704；To guarantee the accuracy detected to wound.
Step 803: the first alternating voltage of power supply system output is received by the transformer in blood flow state detection device；
Step 804: the first alternating voltage is converted to the second alternating voltage by transformer, and by the second alternating voltage export to
Every a pair of detecting electrode；
The process of above-mentioned steps 803 and step 804 is the mistake of the input alternating voltage for 3 pairs of detecting electrodes shown in Fig. 7
Journey, i.e., the alternating voltage received can be continued by 200V voltage being converted to 24V human body below by transformer 7013.
Step 805: the circuit that every a pair of of detecting electrode is formed is detected by the test section in blood flow state detection device
Initial current；
The initial current of the step is defaulted as detecting electrode pair and wound is formed into a loop, and has just received the second alternating voltage
When, first value that test section detects, in fact, the blood flow shape for just finishing for the wound that operation is formed, when starting
State is more stable, then can be using the electric current that initial stage more stable blood flow state generates as initial current.
Step 806: the running current in the circuit that every a pair of of the detecting electrode of real-time detection is formed；
The real-time detection is the integrality in order to guarantee running current acquisition, such as: the primary fortune of every 1s or every 0.5s detection
Row electric current.
Step 807: according to initial current and running current, calculating the impedance variations in the circuit that every a pair of of detecting electrode is formed
Value；
In this step, the process of calculating is mainly completed using following calculation formula (1).
Wherein,J-th of impedance variations value characterizing n-th between of detecting electrode of current detector detection；U characterization is handed over
The alternating voltage of time variant voltage offer portion output；In0Characterize the initial current of n-th pair of detecting electrode of current detector detection；Inj
J-th of running current value n-th between of detecting electrode of current detector detection.
Step 808: converting corresponding electric signal for impedance variations value；
Step 809: being sequentially output electric signal sequentially in time, form display waveform, which is shown by display
Waveform thens follow the steps 810 when impedance variations value is less than first threshold, when impedance variations value is greater than second threshold, then holds
Row step 813；
Above-mentioned steps 808 and step 809 will be primarily to will intuitively be showed impedance variations value in a manner of waveform diagram
Out, reference frame is provided to carry out wound processing for medical staff.The above-mentioned process that shows is mainly that signal shown in Fig. 7 turns
Impedance variations value is converted corresponding electrical signal intensity by parallel operation 70154, such as: it is strong to induction signal when impedance variations value is 0 Ω
Degree is 0Hz；When impedance variations value is 12 Ω, corresponding signal strength is 24Hz etc..And it is shown by display 70155 with inspection
Survey the variation of the extension signal strength of time.Since impedance variations value may be more small, in order to guarantee the explicitly of display, also
Can between signal adapter 70154 and display 70155 setting signal amplifier, by signal adapter 70154 go out letter
Number intensity amplifies certain multiple, so that 70155 display waveform of display be made to be more clear.
Step 810: statistics is continuously less than first number of the impedance variations value of first threshold；
Whether the number of the continuous impedance variations value less than first threshold will directly determine out wound in leakage blood, such as: it is small
It may be detection mistake once in a while when the number of the impedance variations value of first threshold is 1, can not illustrate leaking blood, when
Detect that the 5th impedance variations value is less than first threshold, the 6th impedance variations value, the 7th impedance variations value, the 8th impedance become
Change value is respectively less than first threshold, and still, the 9th impedance variations value is greater than first threshold, then is continuously less than the impedance of first threshold
The number of changing value is 4；For another example: being respectively less than the first threshold from the 100th impedance variations value to the 115th impedance variations value
Value, then the number for being continuously less than the impedance variations value of first threshold is 16.
Step 811: judge whether first number is not less than third threshold value, if so, 812 are thened follow the steps, otherwise,
Execute step 810；
Such as: the third threshold value of setting is 15；Then in above-mentioned steps 810, when the impedance variations for being continuously less than first threshold
When the number of value is 4,4 less than 15, then illustrate not leak blood；The number of the continuous impedance variations value less than first threshold is 16
When, 16 be greater than 15, then illustrate leak blood, by alarm system carry out leakage blood alarm so that medical staff in time to wound at
Reason, ensures the safety of patient.
Step 812: determining that leakage blood occurs for wound, triggering warning system carries out leakage blood alarm, and terminates current process；
Step 813: statistics is continuously greater than second number of the impedance variations value of second threshold；
Step 814: judge whether second number is not less than third threshold value, if so, 815 are thened follow the steps, otherwise,
Execute step 813；
The process of above-mentioned steps 813 and step 814: the number of the continuous impedance variations value greater than second threshold will be directly true
It makes wound and thrombus whether occurs, such as when the number of impedance variations value of: greater than second threshold is 1, it may be for once in a while
Detect mistake, can not illustrate thrombus occur, when detect the 200th impedance variations value be greater than second threshold, the 201st impedance
Changing value, the 202nd impedance variations value, the 203rd impedance variations value are respectively less than first threshold, still, the 204th impedance variations
Value is less than second threshold, then the number for being continuously greater than the impedance variations value of second threshold is 4；For another example: from the 300th impedance
Changing value to the 315th impedance variations value is all larger than second threshold, then continuously greater than the number of the impedance variations value of second threshold
It is 16.Such as: the third threshold value of setting is 15；Then when being continuously greater than the number of impedance variations value of second threshold is 4,
4 less than 15, then illustrate that wound does not occur thrombus；When the number of the continuous impedance variations value greater than second threshold is 16,16 is big
In 15, then illustrate that thrombus occurs in wound, by alarm system carry out leakage blood alarm so that medical staff in time to wound at
Reason, ensures the safety of patient.
Step 815: determining that thrombus occurs for wound, triggering warning system carries out thrombus alarm.
According to above scheme, various embodiments of the present invention are at least had the following beneficial effects:
1. being connected by every a pair of of alternating voltage port in alternating voltage offer portion with corresponding a pair of of detecting electrode, it is
Corresponding a pair of detecting electrode exports alternating voltage；And every a pair of of detecting electrode extremely includes adhesion layer, every a pair of of detection electricity
Extremely skin surface can be adhered to by adhesion layer, since human body is a conductor, then, when two electrodes adhere to human body
On, the human body between two electrodes and two electrodes constitutes closed circuit, then when a pair of of detecting electrode receives alternation
When the alternating voltage of voltage offer portion output, there will be electric current to be placed through the human body between two electrodes, and electric current is big
Blood flow state (blood flow is normal, leaks blood and thrombus) in the small human body by between two electrodes is influenced, i.e., different blood
Stream mode (blood flow is normal, leaks blood and thrombus) generates different impedance values for closed circuit, then, when alternating voltage offer portion is
When at least a pair of of detecting electrode provides alternating voltage, detected by test section in the circuit that every a pair of of detecting electrode is formed
Impedance variations value determines blood flow state according to impedance variations value, realizes while detecting thrombus and leakage blood.
2. the voltage of power supply system is converted to by the voltage that human body can be born by transformer in embodiments of the present invention,
So, the voltage value that the voltage of every a pair of of detecting electrode input human body can bear in carrying out detection process for human body, thus
It ensure that the safety of detection process.
3. the initial current generated by detecting every a pair of of detecting electrode, and the operation of every a pair of of the detecting electrode of real-time detection
Electric current, and the initial current and corresponding running current detected according to current detector calculate every a pair of of detecting electrode and are formed
Circuit in impedance variations value；It and by setting first threshold and second threshold for impedance variations value, and is impedance variations value
Number third threshold value is set, i.e., when impedance variations value is less than first threshold, meanwhile, the continuous impedance variations for being less than first threshold
When value number reaches third threshold value, it is determined that for leakage blood；When impedance variations value be greater than second threshold, meanwhile, continuously be greater than second
When the impedance variations value number of threshold value reaches third threshold value, it is determined that be thrombus, thus guarantee detection leakage blood and thrombus it is accurate
Property.
4. the impedance variations value that will be calculated by signal adapter, is converted into corresponding electric signal, and export telecommunications
Number display is given, by display, for receiving the electric signal of the signal adapter output, and output electricity sequentially in time
Signal forms display waveform, so as to more intuitively show impedance variations value with the variation of detection time.
5. by by every a pair of of detecting electrode adhesion locations in blood flow state detection device away from wound edge 0-10cm；And
The line of first detecting electrode adhesion locations and the first detecting electrode adhesion locations in every a pair of of detecting electrode is passed through into wound, it is real
The detection to wound blood status is showed.
6., when determining leakage blood or thrombus, passing through triggering by being connected blood flow state detection device with alarm system
Alarm system alarm, realizes and alarms leakage blood or thrombus, so that medical staff can give first-aid measures or in time in time
Wound processing is carried out, the safety of patient is further ensured.
It should be noted that, in this document, such as first and second etc relational terms are used merely to an entity
Or operation is distinguished with another entity or operation, is existed without necessarily requiring or implying between these entities or operation
Any actual relationship or order.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-
It is exclusive to include, so that the process, method, article or equipment for including a series of elements not only includes those elements,
It but also including other elements that are not explicitly listed, or further include solid by this process, method, article or equipment
Some elements.In the absence of more restrictions, the element limited by sentence " including one ", is not arranged
Except there is also other identical factors in the process, method, article or apparatus that includes the element.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can store in computer-readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
In the various media that can store program code such as disk.
Finally, it should be noted that the foregoing is merely presently preferred embodiments of the present invention, it is merely to illustrate skill of the invention
Art scheme, is not intended to limit the scope of the present invention.Any modification for being made all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., are included within the scope of protection of the present invention.
Claims (6)
1. a kind of blood flow state detection device characterized by comprising alternating voltage offer portion, at least a pair of of detecting electrode and
Test section, wherein
Alternating voltage offer portion, comprising: at least a pair of of alternating voltage port, wherein every a pair of alternating voltage port and one
It is connected to detecting electrode, for exporting alternating voltage for the pair of detecting electrode；
Every a pair of of detecting electrode extremely includes adhesion layer at least a pair of of detecting electrode；
Every a pair of detecting electrode adheres to skin surface by the adhesion layer, defeated for receiving alternating voltage offer portion
Alternating voltage out；
The test section, for when alternating voltage offer portion provides alternating voltage at least a pair of of detecting electrode,
The impedance variations value detected in the circuit that every a pair of of detecting electrode is formed determines blood flow state according to the impedance variations value；
The test section, comprising: current detector, computation subunit and judgment sub-unit, wherein the current detector is used
In the initial current for detecting every a pair of of detecting electrode and generating, and the running current of every a pair of of the detecting electrode of real-time detection；
The computation subunit, initial current and corresponding running current for being detected according to the current detector, benefit
With following first calculation formula, the impedance variations value in the circuit that every a pair of of detecting electrode is formed is calculated；
Wherein,J-th of impedance variations value characterizing n-th between of detecting electrode of current detector detection；U characterizes alternation electricity
The alternating voltage of offer portion output is provided；In0Characterize the initial current of n-th pair of detecting electrode of current detector detection；InjElectric current
J-th of running current value n-th between of detecting electrode of detector detection；
The judgment sub-unit when impedance variations value for being calculated when the computation subunit is less than zero, determines leakage blood；
When the impedance variations value that the computation subunit is calculated is greater than zero, thrombus is determined；When the computation subunit calculates
When the impedance variations value arrived is equal to zero, determine that blood flow is normal.
2. blood flow state detection device according to claim 1, which is characterized in that alternating voltage offer portion, comprising:
Transformer, wherein
The transformer is connected with the power supply system of peripheral hardware, the first alternating voltage that the power supply system for receiving peripheral hardware inputs,
And first alternating voltage is converted into the second alternating voltage；
Every a pair of of detecting electrode, for receiving the second alternating voltage of alternating voltage offer portion output.
3. blood flow state detection device according to claim 1, which is characterized in that the judgment sub-unit, for being arranged
First threshold, second threshold and third threshold value, the first threshold are leakage blood threshold value, and the second threshold is thrombus threshold value, really
The number of the fixed impedance variations value being continuously calculated less than the computation subunit of the first threshold, judges that the number is
It is no to reach the third threshold value, if it is, determining leakage blood；Determine the computation subunit for being continuously greater than the second threshold
The number for the impedance variations value being calculated, judges whether the number reaches the third threshold value, if it is, blood occurs in determination
Bolt；
And/or
The test section further comprises: signal adapter and display, wherein
The signal adapter, the impedance variations value for the computation subunit to be calculated, is converted into corresponding telecommunications
Number, and the electric signal is exported to the display；
The display for receiving the electric signal of the signal adapter output, and exports electric signal, shape sequentially in time
At display waveform.
4. blood flow state detection device according to any one of claims 1 to 3, which is characterized in that be applied to wound blood flow shape
State detection；
Every a pair of of detecting electrode adhesion locations are away from wound edge 0-10cm；
The line of the first detecting electrode adhesion locations and the first detecting electrode adhesion locations passes through in every a pair of of detecting electrode
The wound.
5. blood flow state detection device according to any one of claims 1 to 3, which is characterized in that the test section and peripheral hardware
Alarm system be connected,
When the test section determines blood flow state to leak blood, the alarm system alarm of the peripheral hardware is triggered；
And/or
When the test section determines that blood flow state is thrombus, the alarm system alarm of the peripheral hardware is triggered.
6. a kind of blood flow state detection system characterized by comprising any blood flow state detection of claim 1 to 5
Equipment, power supply system and alarm system, wherein
The power supply system, the first alternating voltage for being inputted for the blood flow state detection device；
The alarm system, for alarming when receiving the triggering of the blood flow state detection device.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038210A (en) * | 1988-05-26 | 1989-12-27 | 葛家瑜 | Movable and turnable bed applicable of surgical operation for patient |
| CN1703165A (en) * | 2002-10-07 | 2005-11-30 | 科恩瑟斯蒂姆斯医疗技术公司 | Impedance-based detection method for hemodynamic parameters |
| CN102159132A (en) * | 2008-09-22 | 2011-08-17 | 奇塔医疗公司 | System and method for determining blood flow |
| CN204798502U (en) * | 2015-04-04 | 2015-11-25 | 浙江省人民医院 | Medical hourglass blood weeping alarm |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1871226A2 (en) * | 2005-02-16 | 2008-01-02 | Transoma Medical, Inc. | Impedance based sensor for monitoring leakage in abdominal aortic aneurism stent graft |
| US8961417B2 (en) * | 2008-01-04 | 2015-02-24 | Texas Heart Institute | Catheter with electrodes for impedance and/or conduction velocity measurement |
-
2016
- 2016-08-30 CN CN201610755682.6A patent/CN106236020B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038210A (en) * | 1988-05-26 | 1989-12-27 | 葛家瑜 | Movable and turnable bed applicable of surgical operation for patient |
| CN1703165A (en) * | 2002-10-07 | 2005-11-30 | 科恩瑟斯蒂姆斯医疗技术公司 | Impedance-based detection method for hemodynamic parameters |
| CN102159132A (en) * | 2008-09-22 | 2011-08-17 | 奇塔医疗公司 | System and method for determining blood flow |
| CN204798502U (en) * | 2015-04-04 | 2015-11-25 | 浙江省人民医院 | Medical hourglass blood weeping alarm |
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