CN209154891U - Neuropile stimulator - Google Patents

Abstract

The utility model provides a kind of neuropile stimulator, comprising: key module, for receiving output current-order and the output frequency instruction of user；Power module provides first voltage and second voltage；Voltage transformation module, voltage transformation module are connected with power module, for being converted first voltage to export tertiary voltage；Central control module, central control module is connected with key module, power module and voltage transformation module respectively, central control module generates control signal for controlling voltage transformation module, and according to the received output current-order of key module and output frequency instruction；Current control module, current control module are connected with power module, voltage transformation module and central control module respectively, and current control module is based on second voltage, tertiary voltage, generate boost pulse electric current according to control signal；Boost pulse output end, boost pulse output end are connected with current control module, for exporting boost pulse electric current.

Description

Neuropile stimulator

Technical field

The utility model relates to technical field of medical equipment, and in particular to a kind of neuropile stimulator.

Background technique

Peripheral blockade is the key means of surgical operation anesthesia, treatment of Postoperative Analgesia After and chronic ache etc., is formed Function carries out peripheral blockade and needs that neuropile is accurately positioned.

There is the defects of not convenient and accurate enough by the neuropile positioning of the realizations such as the experience of doctor at present.

Utility model content

The utility model is to solve technical problem not convenient and accurate enough for the positioning of neuropile at present, provides one Kind neuropile stimulator.

The technical solution adopted in the utility model is as follows:

A kind of neuropile stimulator, comprising: key module, the key module are used to receive the output current-order of user It is instructed with output frequency；Power module, the power module provide first voltage and second voltage；Voltage transformation module, it is described Voltage transformation module is connected with the power module, and the voltage transformation module is for converting with defeated the first voltage Tertiary voltage out；Central control module, the central control module respectively with the key module, the power module and described Voltage transformation module is connected, and the power module is central control module power supply, the center by the second voltage Control module refers to for controlling the voltage transformation module according to the received output electric current of the key module It enables and output frequency instruction generates control signal；Current control module, the current control module respectively with the power supply Module, the voltage transformation module are connected with the central control module, and the current control module is based on the power module The tertiary voltage that the second voltage of offer, the voltage transformation module export generates boost pulse electricity according to the control signal Stream；Boost pulse output end, the boost pulse output end are connected with the current control module, the boost pulse output end For exporting the boost pulse electric current.

The neuropile stimulator further include: display module, the display module are connected with the central control module, The display module is used to show the setting electric current in the output current-order, the setting pulsewidth in output frequency instruction Or setting frequency, actual current and actual measurement internal resistance.

The boost pulse output end is wired to detection electrode and stimulation needle, to described in the output of detection position Boost pulse electric current.

The boost pulse output end includes two output terminals.

The key module include electric current gear switching key, electric current increase key, electric current reduce key, frequency error factor by Key, frequency increase key and frequency reduces key.

The electric current gear switching key switches the step value of the setting electric current, the step value difference of three setting electric currents It is indicated by corresponding indicator light, the frequency error factor key switches the step value of the setting frequency, two setting frequencies The step value of rate passes through corresponding indicator light respectively and is indicated.

The key module further includes switch key and reset key, the switch key be used to receive user booting or Shutdown command, the reset key are used to receive the complete machine state reset instruction of user.

The power module includes the lithium battery and be converted to the first voltage that output voltage is the first voltage The voltage regulator circuit of the second voltage.

The first voltage is 3.7V, and the second voltage is 3.3V, and the tertiary voltage is 36V or 54V.

The display module includes the first digital display screen and the second digital display screen, and first digital display screen is used for Show the setting electric current and the actual current, second digital display screen is for showing the setting pulsewidth and the reality Survey internal resistance.

The utility model has the beneficial effects that

The utility model receives the output current-order of user by key module and output frequency instructs, and passes through center Control module controls voltage transformation module, and is instructed according to the received output current-order of key module and output frequency Generate control signal, the second voltage provided by current control module based on power module, voltage transformation module export the Three voltages generate boost pulse electric current according to control signal, and export the boost pulse electric current by boost pulse output end, Thereby, it is possible to easily and accurately position to neuropile, effective guarantee is provided for surgical operation anesthesia and Postoperative Analgesia After etc..

Detailed description of the invention

Fig. 1 is the block diagram of the neuropile stimulator of the utility model embodiment；

Fig. 2 is the block diagram of the neuropile stimulator of the utility model one embodiment；

Fig. 3 is the interactive panel structural schematic diagram of the neuropile stimulator of the utility model one embodiment；

Fig. 4 is the chip pin figure in the central control module of the utility model one embodiment；

Fig. 5 is the structural schematic diagram of the ISP program download interface of the utility model one embodiment；

Fig. 6 is the structural schematic diagram of the memory device of the utility model one embodiment；

Fig. 7 is the structural schematic diagram of the power module of the utility model one embodiment；

Fig. 8 is the structural schematic diagram of the voltage transformation module of the utility model one embodiment；

Fig. 9 is the partial structure diagram of the current control module of the utility model one embodiment；

Figure 10 is another part structural schematic diagram of the current control module of the utility model one embodiment；

Figure 11 is the structural schematic diagram of one group of charactron circuit in the display module of the utility model one embodiment；

Figure 12 is the structural schematic diagram of another group of charactron circuit in the display module of the utility model one embodiment.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1, the neuropile stimulator of the utility model includes key module 10, power module 20, voltage conversion Module 30, central control module 40, current control module 50 and boost pulse output end 60.

Wherein, key module 10 is used to receive output current-order and the output frequency instruction of user；Power module 20 mentions For first voltage and second voltage；Voltage transformation module 30 is connected with power module 20, and voltage transformation module 30 is used for first Voltage is converted to export tertiary voltage；Central control module 40 turns with key module 10, power module 20 and voltage respectively Change the mold block 30 be connected, power module 20 by second voltage be central control module 40 power, central control module 40 be used for pair Voltage transformation module 30 is controlled, and is generated according to the received output current-order of key module 10 and output frequency instruction Control signal；Current control module 50 is controlled with the power module 20, the voltage transformation module 30 and the center respectively Module 40 is connected, second voltage that current control module 50 is provided based on power module 20, the output of voltage transformation module 30 the Three voltages generate boost pulse electric current according to the control signal；Boost pulse output end 60 is connected with current control module 50, Boost pulse output end 60 is for exporting boost pulse electric current.

Further, as shown in Fig. 2, neuropile stimulator further includes display module 70, display module 70 and center are controlled Module 40 is connected, and display module 70 is used to show the setting electric current in output current-order, the setting arteries and veins in output frequency instruction Wide or setting frequency, actual current and actual measurement internal resistance, i.e., actually measured neural impedance.

In one embodiment of the utility model, as shown in figure 3, key module 10 includes electric current gear switching key 11, electric current increases key 12, electric current reduces key 13, frequency error factor key 14, frequency increase key 15 and frequency reduces key 16.Wherein, the step value of the switching of electric current gear switching key 11 setting electric current, the step of the switching setting frequency of frequency error factor key 14 Into value.Specifically, step value 0.01mA, 0.1mA, 1mA and three setting frequencies of three setting electric currents is arranged in the utility model Step value 1Hz, 2Hz, 50Hz of rate.When switching to corresponding step value, trigger current increaseds or decreases key, frequency increases Add deduct small key when, setting electric current, be arranged frequency value can be increasedd or decreased with corresponding step value.As shown in figure 3, refreshing Electric current, frequency step value indicator light, the step value of three above-mentioned setting electric currents, three settings are additionally provided on clump stimulator The step value of frequency can be indicated by corresponding indicator light respectively.For example, it is pressed when by the switching of trigger current gear When the step value that electric current is arranged is switched to 0.1mA by key 11, corresponding 0.1mA step value indicator light is bright, and trigger current increases at this time Add key 12 primary, then electric current is set and increases 0.1mA, trigger current reduces key 13 once, then electric current is arranged and reduces 0.1mA.

In one embodiment of the utility model, key module 10 may also include switch key and reset key, switch Key can receive booting or the shutdown command of user, thus to the booting or shutdown that control neuropile stimulator, reset key The complete machine state reset instruction that can receive user, thus to the complete machine state reset for controlling neuropile stimulator.

In one embodiment of the utility model, power module 20 include output voltage be first voltage lithium battery and First voltage is converted to the voltage regulator circuit of second voltage.In a specific embodiment of the utility model, first voltage is 3.7V, second voltage 3.3V, tertiary voltage are 36V or 54V.

In one embodiment of the utility model, as shown in figure 3, display module 70 includes 71 He of the first digital display screen Second digital display screen 72, the first digital display screen 71 is for showing setting electric current and actual current, the second digital display screen 72 For showing setting pulsewidth and actual measurement internal resistance.

In addition, as shown in figure 3, be additionally provided with detection indicator light on neuropile stimulator, can be used to indicate detection electrode or Whether stimulation needle touches detection position.In one embodiment of the utility model, it can also be detected by sounding component Instruction.

In one embodiment of the utility model, boost pulse output end 60 can be wired to detection electrode and Needle is stimulated, to export boost pulse electric current to detection position.Specifically, boost pulse output end 60 may include two output ends One end of son, conducting wire is connected with detection electrode and stimulation needle by plug, and as the attachment of neuropile stimulator and nerve Clump stimulator split settings.In actual use, the output terminal phase of the connection terminal of the conducting wire other end and neuropile stimulator Even, detection electrode or stimulation needle are placed in detection position.In a specific embodiment of the utility model, neuropile stimulator Output terminal can be banana bin, and the connection terminal of the conducting wire other end can be banana plug.

Wherein, detection electrode can be used for extracorporeal mode, carry out Transcutaneous positioning.Stimulation voltage under extracorporeal mode does not surpass 60V is crossed, the settable range of stimulated current is 0~24mA, and the step value that electric current is arranged is 0.1mA, and error is ± 5%.Stimulate needle It can be used for internal mode, carry out nerves within the body positioning.Stimulation voltage under internal mode is no more than 35V, and stimulated current is settable Range is 0~5mA, and the step value that electric current is arranged is 0.01mA, and error is ± 5%.Boost pulse under above two mode is wide Degree is in 0.1ms~1.0ms, step value 0.1ms, error+1%；In 1Hz, 2Hz, 50Hz, (50Hz is boost pulse frequency Pain Management dedicated frequency) three gears, error ± 5%.

In one embodiment of the utility model, central control module 40 may include STM32 series monolithic, particular type It number can be STM32F103X, pin is as shown in Figure 4.STM32F103X can be connected with ISP program download interface shown in fig. 5, ISP program download interface includes that USB interface, USB turn serial port chip CH340 and its auxiliary circuit, which mainly includes Triode Q1 and Q3, the collector of Q3 are connected to the BOOT0 pin of STM32F103X by resistance.STM32F103X can be connected There is storage chip 24C16 shown in fig. 6, to information such as the running parameters that stores neuropile stimulator.

As shown in fig. 7, power module 20 further includes lithium battery charging circuit, and it mainly include XC4054 charging chip, electricity The voltage regulator circuit of source module 20 mainly includes MIC5219 voltage stabilizing chip, and the lithium battery voltage of 3.7V can be converted to 3.3V electricity Pressure.

As shown in figure 8, voltage transformation module 30 may include DCDC chip MAX1771 and its auxiliary circuit, the auxiliary circuit It mainly include N-type metal-oxide-semiconductor, the lithium battery voltage of 3.7V can be boosted to 36V by voltage transformation module 30.

Current control module 50 may include DC control chip AD5420TSSOP as shown in Figure 9, DC control chip The third that the second voltage that AD5420TSSOP can be provided based on power module 20, i.e. 3.3V voltage, voltage transformation module 30 export Voltage, i.e. 36V voltage generate the DC current that size is 0~24mA.

As shown in Figure 10, current control module 50 may also include analog switch MAX14757, can be based on power module 20 The tertiary voltage that the second voltage of offer, i.e. 3.3V voltage, voltage transformation module 30 export, i.e. 36V voltage control mould in center Under the control for the control signal that block 40 exports, pulse current is converted direct current into, and detection electricity is connected to by XOUT1 pin Pole and stimulation needle, XOUT2 pin can be connected to clip.

As is illustrated by figs. 11 and 12, display module 70 may include two groups of charactron circuits, and every group of charactron circuit mainly wraps Include buffer 74HC595 and charactron.

It should be noted that Fig. 4 identical terminal label into Figure 12 indicates MAX1771 in connection relationship, such as Fig. 8 SHDN pin may be connected to the PA11 pin of STM32F103X in Fig. 4, be not described in detail one by one herein.

It, can be first after the banana plug of the conducting wire other end is inserted into banana bin in one embodiment of the utility model It is attached the detection of state, specifically, adjustable current gear switching key 11, electric current increase key 12, electric current reduction is pressed Any output current value is arranged in key 13, the both ends of connecting line is touched so that it is short-circuit, if detection indicator light is bright at this time, table Show that connecting line is normal, as do not occur detect indicator light it is bright if the connecting line it is unusable, after should being checked or being reconnected again It is tested.

After connecting connecting line and detection electrode and stimulation needle, power button is triggered, neuropile stimulator carries out after booting Self-test.After the completion of self-test, two digital display screens show stimulated current size and pulse frequency or pulse width, if detecting at this time Electrode or stimulation needle touch detection position, then capable of emitting rhythmical " tick, tick " sound of the sounding component of neuropile stimulator, Indicate that equipment working state is normal.

When carrying out body surface location using detection electrode, detection electrode can be inserted into the plug of connecting line one end, parameter It is set as boost pulse frequency 2Hz, stimulated current 20mA, boost pulse width 0.3ms.Spy is clamped with the clip of connecting line one end Survey electrode, detection electrode is attached to the place within 50 centimetres of target nerve Ipsilateral limb for need to positioning, and avoid echo area and Field of operation.The size of key adjusting stimulated current.Digital display screen shows reality output stimulated current size and hears there is rhythm Pulse " tick, tick " sound when, expression comes into operable state, can detect patient is quasi- neural position and coat ultrasonic coupling Agent slides detection electrode along corresponding body surface to reduce Skin Resistance, when searching out target nerve and phase can be observed The muscle pumping answered is quivered, and can be marked localised puncture point in body surface at this time.

After body surface detects corresponding nerve location, mark is carried out, and carry out disinfection processing to patient skin position.When After disposable neuropile stimulation needle is connected with neuropile stimulator, machine automatically switches to internal mode, and on the screen Display.Under internal mode when adjusting parameter, general recommendations sets boost pulse frequency 2Hz, stimulated current 1.0mA, boost pulse Width 0.1ms.When being punctured using stimulation needle, key adjusts the size of stimulated current, when screen shows predetermined current size simultaneously Hear rhythmical pulse " tick, tick " sound when indicate has entered stimulate needle operable state, carrying out wearing for mark at this time The slow inserting needle of thorn point, and muscle caused by object observing nerve takes out volume, setting reduces stimulated current, when stimulated current is in 0.3mA Muscle still keeps taking out and quiver when~0.5mA, and muscle stops taking out and quivers when being less than 0.3mA, and inserting needle position at this time is the most accurate and reason Think.Injectable arcotic.Stimulate needle in point of puncture inserting needle, pulse " tick, tick " sound can become relatively larger, to prompt to use Person is just in actual working state.

In a specific embodiment of the utility model, parameter setting procedure can include:

A) switch key, equipment starting are pressed；

B) frequency error factor key is pressed, can be configured between three frequency gears 1Hz, 2Hz, 50Hz, selection output thorn Swash pulse frequency；

C) boost pulse pulsewidth can be set in frequency error factor key, and range 0.1ms~1.0ms, step value 0.1ms is arranged；

D) when showing stimulated current pulse, increased by electric current and reduce the settable output electric current of key；

When e) being switched on, display setting output electric current is 0mA；

It f), can be in 0~5.0 milliampere (internal mode) and 0~25 milliampere (extracorporeal mode) when being shown as current range Between selected；

G) when being shown as the duration, reduction key is increased by frequency and manually selects boost pulse width, it is settable Range is 0.1ms~1.0ms, step value 0.1ms；

H) when being shown as the duration, reduction key is increased by frequency and manually selects boost pulse frequency, it is settable For 1Hz, 2Hz；

I) when it is normal for being shown as route self-test state, this equipment can be used；

J) respectively prompt is primary when equipment electricity residue 10% and 5%, and automatic shutdown when electricity residue 3% works as low battery Current marching technique value indicator light has scintillation；

K) there is reset hole in equipment side, and short-press can restore initial setting up.

In conclusion neuropile stimulator according to the present utility model, the output electric current of user is received by key module Instruction and output frequency instruction, and voltage transformation module is controlled by central control module, and is connect according to key module Output current-order and the output frequency instruction of receipts generate control signal, are provided by current control module based on power module The tertiary voltage that second voltage, voltage transformation module export generates boost pulse electric current according to control signal, and passes through stimulation Pulse output end exports the boost pulse electric current, is surgical operation fiber crops thereby, it is possible to easily and accurately position to neuropile Liquor-saturated and Postoperative Analgesia After etc. provides effective guarantee.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (10)

1. a kind of neuropile stimulator characterized by comprising

Key module, the key module are used to receive output current-order and the output frequency instruction of user；

Power module, the power module provide first voltage and second voltage；

Voltage transformation module, the voltage transformation module are connected with the power module, and the voltage transformation module is used for institute First voltage is stated to be converted to export tertiary voltage；

Central control module, the central control module turn with the key module, the power module and the voltage respectively It changes the mold block to be connected, the power module is central control module power supply by the second voltage, the center control mould Block is used to control the voltage transformation module, and according to the received output current-order of the key module and institute It states output frequency instruction and generates control signal；

Current control module, the current control module respectively with the power module, the voltage transformation module and it is described in Control module is entreated to be connected, second voltage that the current control module is provided based on the power module, the voltage modulus of conversion The tertiary voltage of block output generates boost pulse electric current according to the control signal；

Boost pulse output end, the boost pulse output end are connected with the current control module, the boost pulse output End is for exporting the boost pulse electric current.

2. neuropile stimulator according to claim 1, which is characterized in that further include:

Display module, the display module are connected with the central control module, and the display module is for showing the output In setting electric current in current-order, the setting pulsewidth in output frequency instruction or setting frequency, actual current and actual measurement Resistance.

3. neuropile stimulator according to claim 2, which is characterized in that the boost pulse output end is connected by conducting wire It is connected to detection electrode and stimulation needle, to export the boost pulse electric current to detection position.

4. neuropile stimulator according to claim 3, which is characterized in that the boost pulse output end includes two defeated Terminal out.

5. neuropile stimulator according to claim 2, which is characterized in that the key module includes electric current gear switch Key, electric current increase key, electric current reduces key, frequency error factor key, frequency increase key and frequency reduces key.

6. neuropile stimulator according to claim 5, which is characterized in that electric current is arranged described in the electric current gear switch Step value, the step values of three setting electric currents pass through corresponding indicator light respectively and are indicated, the frequency error factor key is cut The step value of the setting frequency is changed, the step value of two setting frequencies passes through corresponding indicator light respectively and indicated.

7. neuropile stimulator according to claim 6, which is characterized in that the key module further include switch key and Reset key, the switch key are used to receive booting or the shutdown command of user, and the reset key is for receiving user's The instruction of complete machine state reset.

8. neuropile stimulator according to claim 1, which is characterized in that the power module includes output voltage for institute It states the lithium battery of first voltage and the first voltage is converted to the voltage regulator circuit of the second voltage.

9. neuropile stimulator according to claim 8, which is characterized in that the first voltage be 3.7V, described second Voltage is 3.3V, and the tertiary voltage is 36V or 54V.

10. neuropile stimulator according to claim 2, which is characterized in that the display module includes first digital aobvious Display screen and the second digital display screen, first digital display screen is for showing the setting electric current and the actual current, institute The second digital display screen is stated for showing the setting pulsewidth and the actual measurement internal resistance.