CN102217928B

CN102217928B - Electronic pain sense measuring pen

Info

Publication number: CN102217928B
Application number: CN201110149416.6A
Authority: CN
Inventors: 顾小飞; 邹最; 夏建华; 石学银
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-06
Filing date: 2011-06-06
Publication date: 2015-01-21
Anticipated expiration: 2031-06-06
Also published as: CN102217928A

Abstract

The invention discloses an electronic pain sense measuring pen, which belongs to the field of medical instruments. The electronic pain sense measuring pen is characterized by being manufactured according to a principle that electric stimulation pain is generated when a high-voltage low-current electron impulse acts on human skin. The electron impulse is generated by adopting a piezoelectric effect principle of ceramic crystals. The electronic pain sense measuring pen consists of a pen head, a shell, a trigger switch, a piezoelectricity generator and a conducting wire. The electronic pain sense measuring pen has the advantage of measuring the level of anesthesia to determine the anesthetic effect and guide the anesthesia dosage when applied to intravertebral anesthesia and nerve blocking anesthesia. The electronic pain sense measuring pen avoids inaccurate feeling of pain stimulation of a patient because of the non-constant needling force in a needle punching method, ensures that the measurement result is more accurate, and cannot burn skin and do harm to a body at the same time of safe electric stimulation, thereby eliminating pains of patients, and reducing the probability of infection and blood-source spread diseases.

Description

Electronic pain sense measuring pen

Technical field

The present invention relates to medical instruments field, be specifically related to a kind of electronic pain sense measuring pen.

Background technology

Usually need mensuration level of anesthesia with clear and definite anaesthetic effect when clinical up intravertebral anesthesia and nerve block anesthesia and instruct Anesthesia medicine amount.When measuring level of anesthesia, still adopting traditional needle point method at present, namely using disposable syringe syringe needle to stimulate patient skin, and according to patient to needle point stimulation pain feel judge level of anesthesia and effect.When adopting needle point method, because operator only grasps acupuncture dynamics with sensation, can not carry out quantitative assay with constant dynamics, this can affect the subjective feeling of patient to needle point stimulation pain to a certain extent.In addition, because needle point is very sharp, stimulate during patient skin and can leave some pinpricks at body surface, bring misery to patient and add infection and the probability of Blood spread disease, sharp syringe needle also has the probability of accidentally injuring other staff simultaneously.External part Anesthetist uses slightly blunt department of neurology test prod special (neurotip tester pin) to replace disposable aspiration needle, greatly can improve the safety of needle point method, but test dynamics not easily accurately controls.

Galvanism human body: the current intensity that during electric shock, human body passes through determines whether cause body injury, when the electric current of frequency 50 ~ 60Hz is by human body, namely current intensity 1mA feels, 8 ~ 12mA tingle, can cause muscle contraction, localized burn, dyspnea, even cardiac arrest more than 20mA.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, the present invention proposes a kind of electronic pain sense measuring pen.This electronic pain sense measuring pen not only clear principle, simple structure, and use safety, convenience.

The present invention is achieved by the following technical solutions:

Electronic pain sense measuring pen, the principle acting on human body skin generation electricity irritation pain according to high voltage low current electronic impulse is made.The generation of electronic impulse have employed the piezoelectric effect principle of ceramic crystal, within the extremely short time, apply high pressure on piezoelectric ceramics both sides, makes ceramic crystal inside produce the directed flow of electricity, thus produces high voltage low current electronic impulse.Electronic pain sense measuring pen is made up of nib, housing, trigger switch, piezo-electric generator and wire, and wherein piezo-electric generator is made up of strut device and fixture; Strut device is made up of the spacing orifice plate of the ram with snap arm, spring and snap arm, and fixture is made up of piezoceramics crystal, spring and draw-in groove bayonet socket plate.

Beneficial effect of the present invention is: 1, measurement result is more accurate: the electronic impulse that piezo-electric generator produces only is directly proportional to the power electricity transformation ratio of ceramic crystal, the coefficient of elasticity of spring and deformation quantity.During owing to triggering at every turn, the deformation quantity of spring is identical, therefore all can produce the electronic impulse of identical energy at every turn, thus realizes quantitative assay, avoids needle point method and causes because acupuncture dynamics grasps non-constant the impact that patient is forbidden pain stimulation impression.2, safe noinvasive, fanout free region: electronic impulse is high voltage low current, and action time is extremely short, safety electric can not skin ambustion while stimulating; Nib adopts obtuse structure, can not produce injury, eliminate patient's misery, decrease the probability of infection and Blood spread disease to body surface.3, except Anesthesia Department, the pain sensation plane that also can be used for the section office such as orthopaedics, neural Medicine and Surgery patient measures, and clinic is applied.

Accompanying drawing explanation

Fig. 1 is the stereoscopic figure (wherein 1 is nib, and 2 is housing, and 3 is trigger switch) of this electronic pain sense measuring pen.

Fig. 2 is the cut-away view (wherein 4 is piezo-electric generator, and 5 is wire) of this electronic pain sense measuring pen.

Fig. 3 is the schematic perspective view (wherein 4-1 is strut device, and 4-2 is fixture) of piezo-electric generator.

Fig. 4 is the decomposition chart (wherein 4-1-3 is spacing hole, and 4-2-3 is draw-in groove, and 4-2-4 is bayonet socket) of piezo-electric generator.

Fig. 5 is the strut device of piezo-electric generator and the cut-away view (wherein 4-1-1 is ram, and 4-1-2 is spring, and 4-1-1-1 is snap arm, and 4-2-1 is piezoceramics crystal, and 4-2-2 is spring) of fixture.

Fig. 6 is the partial structurtes enlarged drawing of strut device.

Fig. 7 is the partial structurtes enlarged drawing of fixture.

Fig. 8 is the schematic diagram that wire connects nib and piezo-electric generator.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention will be further described.

Specific embodiment of the invention scheme: this electronic pain sense measuring pen is made up of (Fig. 1, Fig. 2) nib 1, housing 2, trigger switch 3, piezo-electric generator 4 and wire 5, and wherein piezo-electric generator 4 is made up of (Fig. 3) strut device 4-1 and fixture 4-2; Strut device 4-1 is formed (Fig. 5) by the ram 4-1-1 with snap arm 4-1-1-1, spring 4-1-2 with the spacing orifice plate of snap arm of spacing hole 4-1-3, and fixture 4-2 is formed (Fig. 4) by piezoceramics crystal 4-2-1, spring 4-2-2 and with the draw-in groove bayonet socket plate of draw-in groove 4-2-3 and bayonet socket 4-2-4.When using it to measure level of anesthesia, nib 1 is contacted patient skin gently, promote trigger switch 3, drive piezo-electric generator 4 to produce primary electron pulse, reach human body skin through wire 5, nib 1, produce stimulation pain.The process that piezo-electric generator 4 produces electronic impulse is as follows: strut device 4-1 anterior displacement under the drive of trigger switch 3 of piezo-electric generator 4 makes fixture 4-2 inner spring 4-2-2 and strut device 4-1 inner spring 4-1-2 compressive deformation simultaneously, now because the snap arm 4-1-1-1 of ram 4-1-1 is stopped by bayonet socket 4-2-4, therefore do not produce displacement.Along with strut device 4-1 continues forward, the snap arm 4-1-1-1 of ram 4-1-1 moves to draw-in groove 4-2-3 along bayonet socket 4-2-4 under the slope driving of spacing hole 4-1-3, when snap arm 4-1-1-1 shifts out bayonet socket 4-2-4 completely, stop and remove, the piezoceramics crystal 4-2-1 that now ram 4-1-1 clashes in fixture 4-2 at a terrific speed under the promotion of strut device 4-1 inner spring 4-1-2 makes it produce deformation thus generation current.External force recovers normal condition at the promotion down-pressed pole device 4-1 of fixture 4-2 inner spring 4-2-2 after removing.In knockout process, the length of time depends on coefficient of elasticity and the deformation quantity of strut device 4-1 inner spring 4-1-2, and the size of the electronic impulse voltage and current produced depends on the power electricity transformation ratio of piezoceramics crystal 4-2-1.

Claims

1. an electronic pain sense measuring pen, is characterized in that: this mensuration pen comprises nib, housing, trigger switch, piezo-electric generator and wire, and nib is wherein positioned at housing front, is connected with housing; Piezo-electric generator wherein, is arranged in the housing, is realized by piezoelectric ceramics, be made up of strut device and fixture, be connected with nib by wire, in order to produce high voltage low current electronic impulse, act on skin after being exported by nib to produce electricity irritation pain; Trigger switch wherein, is arranged on housing, is used for pressing piezo-electric generator in housing to produce piezoelectric current;

Wherein, aforesaid strut device is made up of the ram with snap arm, spring and the spacing orifice plate of snap arm with spacing hole, and the ram wherein with snap arm is positioned at spring front, is connected with spring; Snap arm is a part for ram, is positioned at ram both sides; The spacing orifice plate of snap arm is positioned at the band ram of snap arm and the both sides of spring, and the spacing hole on it holds snap arm, for limiting the range of activity of snap arm,

Wherein, the fixture of piezo-electric generator is made up of piezoceramics crystal, spring and draw-in groove bayonet socket plate, and piezoceramics crystal is positioned at spring at front end, is paperwrapped in spring; The other end of spring is connected with strut device, and draw-in groove bayonet socket plate is positioned at piezoceramics crystal, spring and strut device both sides, and the draw-in groove on it and bayonet socket hold snap arm, for limiting the range of activity of snap arm,

Described spacing hole is the bevelled wedge structure of tool, and its length is not more than the length between bayonet socket and draw-in groove end points, and its widest part width is not less than bayonet socket and draw-in groove width sum, and its narrowest place width is not more than draw-in groove width.

2., for the electronic pain sense measuring pen described in claim 1, what it is characterized in that piezo-electric generator inner spring deformation length can all be not less than the length of spacing hole.

3., for the electronic pain sense measuring pen described in claim 1, it is characterized in that the obtuse structure that nib is made for conductive material.

4. for the electronic pain sense measuring pen described in claim 1, it is characterized in that trigger switch forms by with hands contact portion with strut device contact portion, be positioned at housing side or housing tip.