CN204379245U - A kind of spring probe mechanism - Google Patents
A kind of spring probe mechanism Download PDFInfo
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- CN204379245U CN204379245U CN201420743101.3U CN201420743101U CN204379245U CN 204379245 U CN204379245 U CN 204379245U CN 201420743101 U CN201420743101 U CN 201420743101U CN 204379245 U CN204379245 U CN 204379245U
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Abstract
This utility model provides a kind of spring probe mechanism that can be used in Near-infrared Brain hematoma detector, comprises mount pad and fibre-optical probe, is also provided with radome, spring and conical seat.Utilize its light source probe that can assemble detector and detector probe, make to possess separately in detection independently elastic movement ability up and down, head different curve shape can be adapted to, and effectively can control measurement dynamics when detecting, reduce measurement error.
Description
Technical field
This utility model belongs to optical detector technology field, relates to a kind of spring probe mechanism, can be used for hand-held Near-infrared Brain hematoma and examines the light source probe and detector probe of hindering in device.
Background technology
On-the-spot in the war such as wartime, training, accident, disaster, inevitably exist due to blast, fall and the mechanics factor such as impact, act on human brain and form bleeding due to trauma, cause forming fatal intracranial hematoma.According to statistics, dead in war soldier has nearly 50% to be because head injuries caused.And at ordinary times, the craniocerebral injury caused because of accident, traffic accident, disaster has become and accounts for second cause the dead cause of disease after tumor, cardiovascular and cerebrovascular disease.
The treatment key of traumatic cerebral hematoma is promptly and accurately to detect, suit the medicine to the illness dispose and fast after give.Especially the prime time section of l hour after wound.But, owing to lacking the objective reliable detection cephalophyma means that can carry out at the scene, can not give treatment to the cephalophyma wounded targetedly and after give, make many wounded lose best treatment opportunity.
That can carry out accurately detecting to cephalophyma is computed tomography (CT), is called as " goldstandard " of diagnosis of intracranial hematoma.Another portable brain hematoma detecting instrument being applicable to field quick detection is can the tissue such as transdermal, skull and to the sensitivity principle design of intracranial hemorrhage easily based near infrared light, wherein needs to install near-infrared light source, near infrared detector and fibre-optical probe on the base of detector.Existing probe designs is all nonelastic, can not be applicable to the curved surface 3D shape of human body head, uncontrollable measurement dynamics, thus causes the increase of measurement error.
Utility model content
For solving the problem, the purpose of this utility model is to provide a kind of spring probe mechanism adapting to head different curve shape.
This utility model is by the following technical solutions:
A kind of spring probe mechanism, comprise mount pad and fibre-optical probe, also be provided with radome, spring and conical seat, wherein: radome is the cylindrical cavity of band side open surface, through hole is offered for drawing the electricity supply and control line of the photoelectric cell installed in mount pad in its upper end, the end of evagination, is established in lower end, and radome bottom is provided with opening; Mount pad upper end has two certain length elongated holes relatively, and its top is provided with step, sheathed spring on step, and the bottom of spring props up the step convex tendon of mount pad design, and its drift is greater than elongated hole length; Conical seat is fixedly mounted on the bottom of mount pad, and it has longitudinal installing hole; Fibre-optical probe interts in longitudinal installing hole, is arranged on the bottom of mount pad.
The above spring probe mechanism, described mount pad is the step-like hollow posts that downward size reduces, the interior also lower portion of cavity being axially sleeved on radome extends, and the step convex tendon maximum outside diameter of mount pad is equal with radome internal diameter, and bottom minimum outer diameter is equal with the opening of radome bottom.
Radome has screw, is highly positioned at the elongated hole of mount pad topmost, spring is installed in below elongated hole the top of mount pad by compression, and screw screws in from screw and stretches into elongated hole 2-4mm.
The centre bore of two laterally inwardly convergents is established in described conical seat cylinder partial bottom, installs steel ball, spring and jackscrew from the inside to the outside respectively in centre bore.
The centre bore of two laterally inwardly convergents is established in described conical seat cylinder partial bottom, installs steel ball, spring and jackscrew from the inside to the outside respectively in centre bore.
Another object of this utility model is to provide a kind of light source probe, utilizes aforesaid spring probe mechanism, in mount pad, is equiped with LD light source module and collimating lens from top to bottom, and the distance of collimating lens and LD light source module lower end is 1-4mm.
A this utility model again object is to provide a kind of detector probe, utilizes aforesaid spring probe mechanism, in mount pad, is equipped with precise light electric diode and optical filter from top to bottom, and upper end and the optical filter of fibre-optical probe are close to installation.
A this utility model also object is to provide a kind of Near-infrared Brain hematoma detector, includes detector body, and the base of detector body front end is provided with the aforesaid light source probe and detector probe that stretch out downwards.
Described Near-infrared Brain hematoma detector, is characterized in that, the spacing of two fiber probe tip of light source probe and detector probe is 3-5cm.
Adopt above design, this utility model integrated form fibre-optical probe, can realize following functions simultaneously: light source probe and the motion of detector probe standalone elastic, can adapt to head different curve shape; Design can, to the structure of inner circuit realiration electromagnetic shielding, make detector avoid by external interference.This utility model design is relatively simple, but structure is reliable, and spring probe mechanism can be applicable to as light source probe and detector probe in Near-infrared Brain hematoma detector, and detecting in the cephalophyma wounded near infrared light can effectively control survey dynamics, minimizing measurement error.
Accompanying drawing explanation
Fig. 1 is that the outside sketch of device is hindered in the Near-infrared Brain hematoma inspection of assembling light source probe and detector probe.
Fig. 2 is the internal light source probe of detector body 1 and the assembling schematic diagram of detector probe.
Fig. 3 A is the structure chart of this utility model Elastic probe mechanism.
Fig. 3 B is that spring probe mechanism removes structural representation after radome and spring.
Fig. 3 C is spring probe mechanism kinematic schematic diagram.
Fig. 4 A shows the formation of the light source probe using spring probe mechanism.
Fig. 4 B shows the formation of the detector probe using spring probe mechanism.
Detailed description of the invention
The inspection of near-infrared hand-held cephalophyma hinder instrument be mainly used in institute before, war is on-the-spot etc. without using in CT situation, traumatic cerebral hematoma can be detected fast in early days, comprise in frontal lobe, temporal lobe, top and occipital lobe cranium brain position dura mater, Subdural space, arachnoidea and Cerebral cortex hematoma, the cephalophyma wounded are given treatment to timely.
Its know-why: the near infrared light of wavelength 600-900nm has good penetrance to skin, skull, based on intracranial hematoma and non-Hemorrhagic location to near-infrared absorption difference of coefficients (usually reaching more than 10 times), by comparing wounded's brain antimere to the absorption characteristic of near infrared light, judge intracranial hematoma risk.
Wherein, Δ OD is both sides optical density difference, I
nfor normal side optical density, I
hfor hematoma sidelight density.
Conventional Near-infrared Brain hematoma detector includes detector body 1, the base 15 of detector body 1 front end is provided with the light source probe 18 stretched out downwards and detector probe 19 (shown in composition graphs 1 and Fig. 2), light source probe 18 is for sending near infrared light, detector probe 19 returns near infrared light for receiving intracranial and is converted to the signal of telecommunication, and between light source probe 18 and two tips of detector probe 19, optimal distance is 3-5cm.
In this utility model, light source probe 18 and detector probe 19 are designed to spring probe mechanism.
This spring probe mechanism structure is shown in Fig. 3 A, 3B, 3C, include radome 81, mount pad 82, spring 83 and conical seat 84 and fibre-optical probe 85, wherein, radome 81 is the cylindrical cavity (see Fig. 3 A and Fig. 3 C) of band side open surface, by aluminum, copper, the metal materials such as steel are made (can to inner circuit realiration electromagnetic shielding, detector is avoided by external interference), through hole is offered for drawing the electricity supply and control line of the photoelectric cell of installing in mount pad 82 in its upper end, lower end establishes the end of evagination in order to fix with base 15, radome 81 bottom and base 15 relative position all have opening.The step-like hollow posts that mount pad 82 reduces for downward size, axially be sleeved on the interior also bottom of cavity of radome 81 through the opening of base 15, mount pad 82 designs step convex tendon, its maximum outside diameter is equal with radome 81 internal diameter, bottom minimum outer diameter is equal with the opening of base 15, two place's matching design are that mount pad 82 provides motion guide, and mount pad 82 like this can be fixedly mounted on base 15.Mount pad 82 has the elongated hole 821 that two longitudinal directions have certain length relatively in upper end, its step convex tendon top is provided with step, sheathed spring 83 on step, and the bottom of spring 83 props up mount pad 82 and designs step convex tendon, and its drift higher than elongated hole 821 bottom.The relevant position of radome 81 also has screw 88, first below elongated hole 821 height spring 83 being compressed to mount pad 82 during installation, use length can penetrate two elongated holes 821 and the screw 86 stretching into wherein 2-4mm screws in mount pad 82 upper end elongated hole 821 from radome 81 screw 88, bottom due to spring 83 props up mount pad 82 and designs step convex tendon, upper end screw 86 pressuring spring 83 makes spring 83 have certain pre-elasticity, a distance is had to become " displacement d " (Fig. 3 C) between the top of mount pad 82 top and radome 81, mount pad 82 can be realized and flexibly move up and down certain distance.In addition, the screw 86 using length can stretch into the 2-4mm of two elongated holes 821 can prevent the rotary motion of mount pad 82 and radome 81 simultaneously, and this rotary motion may cause the damage of mount pad 82 inner lead.
This utility model spring probe mechanism can be applicable to light source probe 18 and detector probe 19.
See Fig. 4 A, for light source device probe 18, inside mount pad 82, be equiped with LD light source module 26 and collimating lens 28 from top to bottom; Wherein light source module 26 is LD light source module (inside comprises LD laser instrument, module mount pad and control circuit), LD light source module can screw in mount pad 82 by screw thread, collimating lens 28 also screws in mount pad 82 by screw thread from below, and the distance of itself and light source module 26 lower end is 1-4mm.The near infrared light of the 808nm that LD light source module 26 sends, by being coupled to fibre-optical probe 85 upper surface after collimating lens 28, being derived (as Fig. 4 A direction of arrow) by the optical fiber in fibre-optical probe, is realized the function of light source optical path.
See Fig. 4 B, for the installation of detector probe 19, in 82, be equipped with precise light electric diode 31 and optical filter 32 from top to bottom; Wherein, in mount pad 82, precise light electric diode 31 (carrying elementary operational amplification circuit) is arranged at top, installs optical filter 32 immediately below it, and the upper end of fibre-optical probe 85 and optical filter 32 are close to the coupling efficiency installed to ensure light.The light (as Fig. 4 B direction of arrow) that scattering returns from cerebral tissue is imported by the optical fiber in fibre-optical probe 85, by optical filter 32 filter out wherein most non-808nm infrared light to reduce the interference of extraneous light, be coupled in precise light electric diode 31, realize the function detecting light path, the optical signal that precise light electric diode 31 gathers is converted to the signal of telecommunication and is drawn from the through hole of radome 81 upper end by lead-in wire.
The light source probe 18 and detector probe 19 that are equipped with spring probe mechanism are above arranged on the base 15 of Near-infrared Brain hematoma detector body 1 front end, more practical detector can be formed, elastic movement ability is up and down possessed independently separately because the design of elastic mechanism can make two to pop one's head in its use, adapt to head different curve shape respectively, and the measurement dynamics that can effectively control when detecting, reduce measurement error.
Claims (9)
1. a spring probe mechanism, comprises mount pad and fibre-optical probe, it is characterized in that: be also provided with radome, spring and conical seat, wherein:
Radome is the cylindrical cavity of band side open surface, and through hole is offered for drawing the electricity supply and control line of the photoelectric cell installed in mount pad in its upper end, and the end of evagination is established in lower end, and radome bottom is provided with opening;
Mount pad upper end has two certain length elongated holes relatively, and its top is provided with step, sheathed spring on step, and the bottom of spring props up the step convex tendon of mount pad design, and its drift is greater than elongated hole length;
Conical seat is fixedly mounted on the bottom of mount pad, and it has longitudinal installing hole;
Fibre-optical probe interts in longitudinal installing hole, is arranged on the bottom of mount pad.
2. spring probe mechanism according to claim 1, it is characterized in that: described mount pad is the step-like hollow posts that downward size reduces, the interior also lower portion of cavity being axially sleeved on radome extends, the step convex tendon maximum outside diameter of mount pad is equal with radome internal diameter, and bottom minimum outer diameter is equal with the opening of radome bottom.
3. spring probe mechanism according to claim 1 or 2, it is characterized in that: radome has screw, highly be positioned at the elongated hole of mount pad topmost, spring is installed in below elongated hole the top of mount pad by compression, and screw screws in from screw and stretches into elongated hole 2-4mm.
4. spring probe mechanism according to claim 1 or 2, is characterized in that: the centre bore of two laterally inwardly convergents is established in described conical seat cylinder partial bottom, installs steel ball, spring and jackscrew from the inside to the outside respectively in centre bore.
5. spring probe mechanism according to claim 3, is characterized in that: the centre bore of two laterally inwardly convergents is established in described conical seat cylinder partial bottom, installs steel ball, spring and jackscrew from the inside to the outside respectively in centre bore.
6. a light source probe, is characterized in that, utilize the arbitrary described spring probe mechanism of claim 1 to 5, in mount pad, be equiped with LD light source module and collimating lens from top to bottom, the distance of collimating lens and LD light source module lower end is 1-4mm.
7. a detector probe, is characterized in that, utilize the arbitrary described spring probe mechanism of claim 1 to 5, in mount pad, be equipped with precise light electric diode and optical filter from top to bottom, upper end and the optical filter of fibre-optical probe are close to installation.
8. a Near-infrared Brain hematoma detector, includes detector body, it is characterized in that, the base of detector body front end is provided with the light source probe according to claim 6 and detector probe according to claim 7 that stretch out downwards.
9. Near-infrared Brain hematoma detector according to claim 8, it is characterized in that, the spacing of two fiber probe tip of light source probe and detector probe is 3-5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743101.3U CN204379245U (en) | 2014-12-01 | 2014-12-01 | A kind of spring probe mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743101.3U CN204379245U (en) | 2014-12-01 | 2014-12-01 | A kind of spring probe mechanism |
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| CN204379245U true CN204379245U (en) | 2015-06-10 |
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| CN201420743101.3U Active CN204379245U (en) | 2014-12-01 | 2014-12-01 | A kind of spring probe mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650153A (en) * | 2020-05-22 | 2020-09-11 | 复旦大学 | Probe for near infrared spectrum imaging device |
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2014
- 2014-12-01 CN CN201420743101.3U patent/CN204379245U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650153A (en) * | 2020-05-22 | 2020-09-11 | 复旦大学 | Probe for near infrared spectrum imaging device |
| CN111650153B (en) * | 2020-05-22 | 2022-10-25 | 复旦大学 | Probe for near infrared spectrum imaging device |
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Effective date of registration: 20210810 Address after: 300161, No. 106 East Wan Road, Hedong District, Tianjin Patentee after: Institute of Medical Support Technology of Academy of System Engineering of Academy of Military Science Address before: 300161, No. 106 East Wan Road, Hedong District, Tianjin Patentee before: Institute of Medical Equipment, Academy of Military Medical Sciences, PLA Patentee before: Tianjin Rimalandun Technology Co.,Ltd. |