CN105662549A - Visual nerve blocking and positioning guide instrument - Google Patents
Visual nerve blocking and positioning guide instrument Download PDFInfo
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- CN105662549A CN105662549A CN201610129245.3A CN201610129245A CN105662549A CN 105662549 A CN105662549 A CN 105662549A CN 201610129245 A CN201610129245 A CN 201610129245A CN 105662549 A CN105662549 A CN 105662549A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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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
- A61B5/48—Other medical applications
- A61B5/4821—Determining level or depth of anaesthesia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
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Abstract
A visual nerve block positioning guide instrument is mainly composed of a host, a displayer, a B ultrasound probe, a nerve plexus stimulation needle, a nerve detection pen and an electromagnetic space tracking emitter. The host is composed of an industrial personal computer module, a B ultrasound module, an electromagnetic positioning tracking function module and a nerve stimulation pulse module. According to the visual nerve block positioning guide instrument, visualization of an ultrasonic diagnostic unit and accuracy and precision of a nerve plexus stimulation pulse are combined, convenience is brought to operation of a surgery anesthetist, the number of operators and the complexity of instrument operation are reduced, and side effects of stupefacient on patients are reduced; accuracy and safety of nerve plexus positioning and blocking are greatly improved; meanwhile, a function module of a nerve plexus stimulation circuit and a space tracking positioning system are connected with a host machine through a software management and access data communication interface, and the purposes of advance planning, visual operation, objective evaluation, safety and stability of puncture surgery are achieved.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of visual nerve block orientation direction instrument.
Background technology
The trunk four limbs of human body and neck, because the reason of slight illness or wound need to be carried out operative treatment, are on clinical medicineOne of the method the most often using, and these operative treatments all need human peripheral nerve to carry out nerve block-namely logicalNormal said anesthesia, it is preoperative necessary condition. The successful necessary condition of peripheral blockade is correct location peripheryPosition the injecting anesthetic medicine of neuropile in tissue, the peripheral nerve clump localization method of current clinical use has followingSeveral:
A. the lower neurolytic celiac plexus block of neuropile stimulator guiding: this is the method for developed and popularization clinically in recent yearsOne of, when its work, produced the electric pulse of 1-2Hz frequency by neuropile stimulator, and pass through the electrode on neuropile stimulatorThe target nerve clump place that (can be neuropile Probing pen, can be also that neuropile stimulates pin) guides to tissue is stungSwash, if electrode position is correct, can causes the response of human motion nerve and can be observed the flesh that target travel nerve is arrangedTaking out that meat cited is sent out quivered, and accordingly neuropile accurately located and blocked. The method makes human nerve clump location reach with retardanceArrive objective and accurate effect. Therefore, be widely used clinically in recent years.
But the position of the stimulator electrode (refer to neuropile stimulate pin) that enters tissue through skin in tissue is notEnough directly perceived and convenient, can not know stimulator electrode (referring to that neuropile stimulates pin) position in vivo by macroscopic methodPut and with tissue as blood vessel or do not need retardance other neural relative distance.
B. supersonic diagnostic set is the inspection apparatus on a kind of clinical medicine, and its general principle is: ultrasonic wave is at human bodyInterior propagation, because the various tissues of human body exist difference in acoustic properties, ultrasonic wave produces reflection, folding two kinds of different tissues interfacesPenetrate, scattering, diffraction, decay, and ultrasonic sound source and receiver relative motion produce the physical characteristics such as Doppler frequency shift, Ke YiyingWith dissimilar diasonograph, adopt different checking methods, receive the signals such as these reflections, scattering, various to showThe form of tissue and pathology thereof, binding of pathological is learned, clinical medicine, observes, analyzes, sums up different reflexive properties, and to pathologyPosition, character and dysfunction degree are made diagnosis. According to above principle, using ultrasound diagnostic equipment can show through skin equallyThe neuropile that enters tissue stimulates the pin image information of position in vivo, and this information is that human eye can observe directly,Because having advantage intuitively, it aspect nerve block location, is obtaining clinical practice.
But, use diasonograph to carry out neuropile location, need to there is high-grade ultrasonic device, directly draw ultrasonicThe success rate of leading lower nerve block is subject to the impact of operator's anaesthesia technology. And, although most of peripheral nerve can be seen itTotal length, their visuality only limits to the region that the skeletal structure figure viewed from behind or trunk show, diasonograph can not be seenTo little nerve tract, also there is limitation for the demonstration of tissue deep nerve. For the observation ratio of the neuromechanism making a variationMore difficult, sometimes neural similar with muscle echo degree with its tendon, manadesma around, more difficult resolution. Come for operating personnelSay, Anesthetist needs sturdy ultrasonic basis and distinguishes the technical ability of neuromechanism. The also mistake of learning curve that equipment operating usesIn precipitous, be difficult for grasping.
Summary of the invention
The invention provides a kind of visual nerve block orientation direction instrument, the operation easier existing to solve prior artPoor accuracy and not wield problem greatly.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of visual nerve block orientation direction instrument, mainly stimulates pin, nerve by main frame, display, Ultrasonic-B probe, neuropileProbing pen and electromagnetic space are followed the tracks of transmitter composition, and Ultrasonic-B probe is followed the tracks of transmitter with electromagnetic space and is connected with main frame respectively, nerveClump stimulates pin rear end that medicine-pouring pipe joint and electrode plug are set, and neural Probing pen rear end arranges electrode plug, and neuropile stimulates pinElectrode plug and the electrode plug of neural Probing pen all pass through electrode bell and spigot and be connected with main frame, electrode bell and spigot and an electricityUtmost point folder is connected, and main frame is by industrial computer module, B ultrasonic module, electromagnetic location following function module and neural stimulation pulses module groupBecome, B ultrasonic module is by Coordinate Conversion and interpolation processing device ARM and the image digitazation processing DSP of programmable gate array FPGA, imageComposition; Neural stimulation pulses module comprises the core control circuit that ARM chip forms, and core control circuit is by booster circuit, perseveranceCurrent circuit, electronic switch and measuring circuit composition, neural stimulation pulses module can produce, adjusting and output nerve clump stimulate electricityPulse; Electromagnetic location following function module is made up of DSP unit, transmitter unit and receiving element, and DSP unit comprises data signalProcessor DSP and A/D the electric circuit constitute, transmitter unit is connected successively by signal generating circuit, analog switch, power amplifier and transmitterConnect composition, receiving element is connected to form successively by receiver, amplifying circuit, filter circuit and phase-sensitive detection circuit, and signal occursCircuit is connected with A/D circuit by phase-sensitive detection circuit, and A/D circuit is connected with analog switch by digital signal processor DSP,Digital signal processor DSP is connected with main frame.
Above-mentioned neural stimulation pulses module produces and output nerve clump stimulates electric pulse to have following parameter attribute:
Stimulation voltage
Stimulate needle mould formula (in body): maximum peak voltage is no more than 35V;
Stimulate pen mode (body surface): maximum peak voltage is no more than 60V;
Stimulating current
Stimulate needle mould formula (in body): scope 0～5mA can be set, and stepping amount is 0.1mA, and error is ± 5%;
Stimulate pen mode (body surface): scope 0～25mA can be set, and stepping amount is 0.1mA, and error is ± 5%;
Boost pulse width: change continuously at 0.1ms～1.00ms;
Frequency of stimulation: 1Hz, 2Hz, 50Hz, error is ± 5%;
The parameter of above-mentioned neural stimulation pulses module regulates and can adopt the mode of bluetooth to realize.
Above-mentioned main frame is arranged in liftable frame.
Operation principle of the present invention: when the normal work of start, the ultrasonic signal through ovennodulation being produced by main frame passes through BSuper probe is launched and receives echo-signal, and the echo-signal receiving forms image and is presented at aobvious after the analyzing and processing of main frameShow above device, if now neuropile stimulates pin to enter in-vivo tissue the scanning scope at ultrasonic probe, can be aobviousShow and on device, see the neuropile stimulating electrode image information of tissue location in vivo.
In the time of the normal work of " visual nerve block orientation direction instrument " start, electromagnetic space tracking system is started working,The signal of telecommunication through ovennodulation forms 3 d-space field, band signal receiver by the transmitting of electromagnetic space tracking signal transmitterOperating theater instruments assembly during in use by apparatus work received space magnetic field information feed back to dsp processor and masterIn machine, carry out data processing, calculate residing locus the real-time screen that is presented at display in the mode of virtual imageUpper, can plan in advance the route of puncture and carry out effect and evaluate in advance by this function.
In the time of the normal work of " visual nerve block orientation direction instrument " start, neuropile stimulates pin first according to displayThe pre-planning route that the neuropile position showing and space tracing-positioning system produce, near 1-3CM Ultrasonic-B probe physics center linePlace enters tissue through skin, and the nerve location inserting needle of indicating towards screen. Now, neural stimulation pulses module is also passed through neuropileStimulate pin to transmit electric pulse to target nerve, the parameter information of electric pulse is all presented at above indicator screen in real time. Be subject to electric arteries and veinsThe stimulation of punching, the musculature that target nerve is arranged can be taken out and be quivered, along with neuropile stimulates pin constantly to target nerveClose, the current strength of downward electric pulse that can be gradually, when only needing can to make target god once minimum electric current (being generally 0.3mA)Take out while quivering through arranged musculature, can judge that neuropile stimulates pin to arrive the optimum position of injecting anesthetic medicine. ThisThe minimum arcotic of Shi Keyong reaches optimal anaesthetic effect.
Step:
By Ultrasonic-B probe and neuropile stimulate pin respectively access host special purpose interface and debug to duty, for example: will surpassSound indagation is set as " superficial organ and flesh bone check " pattern; By neural stimulation pulses output parameter be set as 2Hz 0.15ms5mA, these data should be presented at above display;
Open electromagnetic space tracing-positioning system signal projector power switch, system enters duty;
At skin surface daubing coupling agent, Ultrasonic-B probe is carried out to scanning at target nerve and preparation inserting needle place scope, and observeThe image that display is shown, appears on screen when scanning shows target nerve, can carry out next step;
The puncture instrument of multi-angle moving belt signal receiver, the puncture producing according to electromagnetic space tracing-positioning system is virtualRelative position neural in the scan image showing on image and display carries out matching planning, determines inserting needle route;
By neuropile stimulate pin apart from Ultrasonic-B probe nearby 1-3CM place percutaneous puncture enter tissue, by planning route neuralwardSlowly inserting needle of place direction is adjusted the current strength of boost pulse the musculature that object observing nerve is arranged downwards simultaneouslyTake out flutter amplitude degree;
The parameter value that limit observation display shows, neuropile boost pulse output current is adjusted on limit, treats that output current hour(being generally 0.3-0.5mA) still can be observed taking out of respective muscle tissue and quiver, and can judge and reach apart from nerve the most nearby, now canSelect the one in following operation: a. injects anaesthetic to target nerve; B. place anesthetic tube to subcutaneous puncture place; Complete godThrough retardance.
Function:
In above step, " visual nerve block orientation direction instrument " embodied following function:
Anesthetist use the present invention carry out human nerve clump when location retardance can see tissue in the figure of neuropileLook like and enter through skin the neuropile stimulation pin of tissue, can judge intuitively their relative position;
Anesthetist can utilize space orientation tracking technique to know in the time carrying out human nerve clump blockage puncture with the present inventionThe three-dimensional space position of operating theater instruments in human body, and be presented in real time above screen with virtual image, can be the each of doctorPlant pre-evaluation of operation puncturing plan, enforcement and effect instant and positive help is provided;
In the time using ultrasonic guidance to stimulate the puncture of pin neuralward direction, electric pulse stimulation makes the muscle groups of target nerve dominationHair-weaving light soy sauce quivers, and prompting anesthetist finds the correctness of target nerve;
Minimum threshold stimulating current can be pointed out anesthetist: puncture needle tip has arrived suitable injection position;
Retardance success rate approaches perfect;
Only need a people just can complete over and need two people's operation.
The present invention is combined direct-view straight the property of supersonic diagnostic set with the accurate and accuracy of neuropile boost pulse, by godThrough planning in advance and locus real-time tracking with vascular puncture operation, observe neural and stimulate by ultrasonic image on one sideThe relative position of electrode, is stung for target nerve and is carried out electric pulse stimulation by neuropile on one side, can observe directly patientThe objective reaction of human body, and can this distinguish that stimulation pin needle point is apart from neural accurate distance; Facilitate surgery anesthesia doctor's behaviourDo, reduced the complexity of operating personnel and instrumentation, the use that has also reduced narcotics brings patient's pair workWith; Accuracy and the security of neuropile location and retardance are improved greatly; Simultaneously by the function of neuropile stimulator circuitryModule is connected with host with visit data communication interface by software administration with space tracing-positioning system, has realized puncturePlanning in advance in operation, straightforward manipulation, objective evaluation, safe safe object.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the circuit module figure of apparatus of the present invention;
Fig. 3 is the fundamental diagram that apparatus of the present invention electromagnetic space is followed the tracks of transmitter;
Fig. 4 is the fundamental diagram of apparatus of the present invention B ultrasonic module;
Fig. 5 is the fundamental diagram of apparatus of the present invention neural stimulation pulses module;
Fig. 6 is the fundamental diagram of apparatus of the present invention electromagnetic location following function module.
In figure, 1 main frame, 2 displays, the super probe of 3B, 4 neuropiles stimulate pin, 5 neural Probing pens, 6 electromagnetic space tracking to send outEmitter, 7 control panels, 8 electrode bell and spigots, 9 electrode holders, 10 electrode plugs, 11 liftable frames, 12 medicine-pouring pipe joints, 13 worksControl machine module, 14B super model piece, 15 electromagnetic location following function modules, 16 neural stimulation pulses modules.
Detailed description of the invention
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of visual nerve block orientation direction instrument, mainly by leadingMachine 1, display 2, Ultrasonic-B probe 3, neuropile stimulate pin 4, neural Probing pen 5 and electromagnetic space tracking transmitter 6 to form, main frame 1Be arranged in liftable frame 11, Ultrasonic-B probe 3 is followed the tracks of transmitter 6 with electromagnetic space and is connected with main frame 1 respectively, and neuropile stimulatesPin 4 rear ends arrange medicine-pouring pipe joint 12 and electrode plug 10, and neural Probing pen 5 rear ends arrange electrode plug 10, and neuropile stimulatesThe electrode plug of the electrode plug of pin 4 and neural Probing pen 5 all passes through electrode bell and spigot 8 and is connected with main frame 1, electrode bell and spigot 8Be connected with an electrode holder 9, main frame 1 is by industrial computer module 13, B ultrasonic module 14, electromagnetic location following function module 15 and nerveBoost pulse module 16 forms, and B ultrasonic module 14 is by Coordinate Conversion and the interpolation processing device ARM of programmable gate array FPGA, imageForm with image digitazation processing DSP; Neural stimulation pulses module 16 comprises the core control circuit that ARM chip forms, coreControl circuit is made up of booster circuit, constant-current circuit, electronic switch and measuring circuit, neural stimulation pulses module can produce,Regulate and output nerve clump stimulation electric pulse; Electromagnetic location following function module 15 is by DSP unit, transmitter unit and receiving elementComposition, DSP unit comprises digital signal processor DSP and A/D the electric circuit constitute, transmitter unit is opened by signal generating circuit, simulationPass, power amplifier and transmitter connect to form successively, and receiving element is by receiver, amplifying circuit, filter circuit and phase sensitive detectionCircuit connects to form successively, and signal generating circuit is connected with A/D circuit by phase-sensitive detection circuit, and A/D circuit is believed by numeralNumber processor DSP is connected with analog switch, and digital signal processor DSP is connected with main frame.
Above-mentioned neural stimulation pulses module 16 produces and output nerve clump stimulates electric pulse to have following parameter attribute:
Stimulation voltage
Stimulate needle mould formula (in body): maximum peak voltage is no more than 35V;
Stimulate pen mode (body surface): maximum peak voltage is no more than 60V;
Stimulating current
Stimulate needle mould formula (in body): scope 0～5mA can be set, and stepping amount is 0.1mA, and error is ± 5%;
Stimulate pen mode (body surface): scope 0～25mA can be set, and stepping amount is 0.1mA, and error is ± 5%;
Boost pulse width: change continuously at 0.1ms～1.00ms;
Frequency of stimulation: 1Hz, 2Hz, 50Hz, error is ± 5%.
The parameter of above-mentioned neural stimulation pulses module 16 regulates and can adopt the mode of bluetooth to realize.
Operation principle of the present invention: when the normal work of start, the ultrasonic signal through ovennodulation being produced by main frame passes through BSuper probe is launched and receives echo-signal, and the echo-signal receiving forms image and is presented at aobvious after the analyzing and processing of main frameShow above device, if now neuropile stimulates pin to enter in-vivo tissue the scanning scope at ultrasonic probe, can be aobviousShow and on device, see the neuropile stimulating electrode image information of tissue location in vivo.
In the time of the normal work of " visual nerve block orientation direction instrument " start, electromagnetic space tracking system is started working,The signal of telecommunication through ovennodulation forms 3 d-space field, band signal receiver by the transmitting of electromagnetic space tracking signal transmitterOperating theater instruments assembly during in use by apparatus work received space magnetic field information feed back to dsp processor and masterIn machine, carry out data processing, calculate residing locus the real-time screen that is presented at display in the mode of virtual imageUpper, can plan in advance the route of puncture and carry out effect and evaluate in advance by this function.
In the time of the normal work of " visual nerve block orientation direction instrument " start, neuropile stimulates pin first according to displayThe pre-planning route that the neuropile position showing and space tracing-positioning system produce, near 1-3CM Ultrasonic-B probe physics center linePlace enters tissue through skin, and the nerve location inserting needle of indicating towards screen. Now, neural stimulation pulses module is also passed through neuropileStimulate pin to transmit electric pulse to target nerve, the parameter information of electric pulse is all presented at above indicator screen in real time. Be subject to electric arteries and veinsThe stimulation of punching, the musculature that target nerve is arranged can be taken out and be quivered, along with neuropile stimulates pin constantly to target nerveClose, the current strength of downward electric pulse that can be gradually, when only needing can to make target god once minimum electric current (being generally 0.3mA)Take out while quivering through arranged musculature, can judge that neuropile stimulates pin to arrive the optimum position of injecting anesthetic medicine. ThisThe minimum arcotic of Shi Keyong reaches optimal anaesthetic effect.
Step:
By Ultrasonic-B probe and neuropile stimulate pin respectively access host special purpose interface and debug to duty, for example: will surpassSound indagation is set as " superficial organ and flesh bone check " pattern; By neural stimulation pulses output parameter be set as 2Hz 0.15ms5mA, these data should be presented at above display;
Open electromagnetic space tracing-positioning system signal projector power switch, system enters duty;
At skin surface daubing coupling agent, Ultrasonic-B probe is carried out to scanning at target nerve and preparation inserting needle place scope, and observeThe image that display is shown, appears on screen when scanning shows target nerve, can carry out next step;
The puncture instrument of multi-angle moving belt signal receiver, the puncture producing according to electromagnetic space tracing-positioning system is virtualRelative position neural in the scan image showing on image and display carries out matching planning, determines inserting needle route;
By neuropile stimulate pin apart from Ultrasonic-B probe nearby 1-3CM place percutaneous puncture enter tissue, by planning route neuralwardSlowly inserting needle of place direction is adjusted the current strength of boost pulse the musculature that object observing nerve is arranged downwards simultaneouslyTake out flutter amplitude degree;
The parameter value that limit observation display shows, neuropile boost pulse output current is adjusted on limit, treats that output current hour(being generally 0.3-0.5mA) still can be observed taking out of respective muscle tissue and quiver, and can judge and reach apart from nerve the most nearby, now canSelect the one in following operation: a. injects anaesthetic to target nerve; B. place anesthetic tube to subcutaneous puncture place; Complete godThrough retardance.
Function:
In above step, " visual nerve block orientation direction instrument " embodied following function:
Anesthetist use the present invention carry out human nerve clump when location retardance can see tissue in the figure of neuropileLook like and enter through skin the neuropile stimulation pin of tissue, can judge intuitively their relative position;
Anesthetist can utilize space orientation tracking technique to know in the time carrying out human nerve clump blockage puncture with the present inventionThe three-dimensional space position of operating theater instruments in human body, and be presented in real time above screen with virtual image, can be the each of doctorPlant pre-evaluation of operation puncturing plan, enforcement and effect instant and positive help is provided;
In the time using ultrasonic guidance to stimulate the puncture of pin neuralward direction, electric pulse stimulation makes the muscle groups of target nerve dominationHair-weaving light soy sauce quivers, and prompting anesthetist finds the correctness of target nerve;
Minimum threshold stimulating current can be pointed out anesthetist: puncture needle tip has arrived suitable injection position;
Retardance success rate approaches perfect;
Only need a people just can complete over and need two people's operation.
Claims (4)
1. a visual nerve block orientation direction instrument, is characterized in that mainly being stung by main frame, display, Ultrasonic-B probe, neuropileSwash pin, neural Probing pen and electromagnetic space and follow the tracks of transmitter composition, Ultrasonic-B probe and electromagnetic space follow the tracks of transmitter respectively with main frameBe connected, neuropile stimulates pin rear end that medicine-pouring pipe joint and electrode plug are set, and neural Probing pen rear end arranges electrode plug, nerveThe clump stimulation electrode plug of pin and the electrode plug of neural Probing pen all pass through electrode bell and spigot and are connected with main frame, electrode bell and spigotBe connected with an electrode holder, main frame is by industrial computer module, B ultrasonic module, electromagnetic location following function module and neural stimulation pulsesModule composition, B ultrasonic module is by Coordinate Conversion and interpolation processing device ARM and the image digitazation of programmable gate array FPGA, imageProcessing DSP composition; Neural stimulation pulses module comprises the core control circuit that ARM chip forms, and core control circuit is by boostingCircuit, constant-current circuit, electronic switch and measuring circuit composition, neural stimulation pulses module can produce, adjusting and output nerveClump stimulates electric pulse; Electromagnetic location following function module is made up of DSP unit, transmitter unit and receiving element, and DSP unit comprisesDigital signal processor DSP and A/D the electric circuit constitute, transmitter unit is by signal generating circuit, analog switch, power amplifier and transmittingDevice connects to form successively, and receiving element is connected to form successively by receiver, amplifying circuit, filter circuit and phase-sensitive detection circuit,Signal generating circuit is connected with A/D circuit by phase-sensitive detection circuit, and A/D circuit is by digital signal processor DSP and simulationSwitch connects, and digital signal processor DSP is connected with main frame.
2. visual nerve block orientation direction instrument according to claim 1, is characterized in that neural stimulation pulses module productRaw and output nerve clump stimulates electric pulse to have following parameter attribute:
Stimulation voltage
Stimulate needle mould formula (in body): maximum peak voltage is no more than 35V;
Stimulate pen mode (body surface): maximum peak voltage is no more than 60V;
Stimulating current
Stimulate needle mould formula (in body): scope 0～5mA can be set, and stepping amount is 0.1mA, and error is ± 5%;
Stimulate pen mode (body surface): scope 0～25mA can be set, and stepping amount is 0.1mA, and error is ± 5%;
Boost pulse width: change continuously at 0.1ms～1.00ms;
Frequency of stimulation: 1Hz, 2Hz, 50Hz, error is ± 5%.
3. visual nerve block orientation direction instrument according to claim 1, is characterized in that neural stimulation pulses moduleParameter regulates and can adopt the mode of bluetooth to realize.
4. visual nerve block orientation direction instrument according to claim 1, is characterized in that main frame is arranged on liftable machineOn frame.
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| CN201610129245.3A CN105662549A (en) | 2016-03-08 | 2016-03-08 | Visual nerve blocking and positioning guide instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105999548A (en) * | 2016-07-04 | 2016-10-12 | 上海健康医学院 | Transcutaneous nerve location electrical stimulation pen |
| CN107811683A (en) * | 2017-10-20 | 2018-03-20 | 张还添 | A kind of Bones and joints ultrasound minimally-invasive treatment instrument |
| CN107961439A (en) * | 2017-11-21 | 2018-04-27 | 北京麦康医疗器械有限公司 | A kind of localization by ultrasonic peripheral nerve clump stimulator |
| CN110664470A (en) * | 2019-12-05 | 2020-01-10 | 中国人民解放军第四军医大学 | Visual nerve block positioning guide instrument |
| CN111820941A (en) * | 2020-06-02 | 2020-10-27 | 唐勇 | Anesthesia monitoring equipment in ultrasonic guidance operation and control system thereof |
| CN112515741A (en) * | 2021-01-12 | 2021-03-19 | 江苏百宁盈创医疗科技有限公司 | Wireless nerve monitoring holding type ultrasonic scalpel |
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