CN110320180A - A kind of optical tomography stiff arms probe - Google Patents
A kind of optical tomography stiff arms probe Download PDFInfo
- Publication number
- CN110320180A CN110320180A CN201910479301.XA CN201910479301A CN110320180A CN 110320180 A CN110320180 A CN 110320180A CN 201910479301 A CN201910479301 A CN 201910479301A CN 110320180 A CN110320180 A CN 110320180A
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- China
- Prior art keywords
- hollow shaft
- transmission casing
- focus lamp
- optical fiber
- optical tomography
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- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 239000000523 sample Substances 0.000 title claims abstract description 21
- 238000003325 tomography Methods 0.000 title claims abstract description 21
- 239000013307 optical fiber Substances 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000005389 magnetism Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- -1 focus lamp Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012014 optical coherence tomography Methods 0.000 description 2
- 244000144985 peep Species 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/45—Refractivity; Phase-affecting properties, e.g. optical path length using interferometric methods; using Schlieren methods
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Endoscopes (AREA)
Abstract
The present invention discloses a kind of optical tomography stiff arms probe, including focus lamp, optical fiber, transmission casing, outer sleeve, installation shell and hollow shaft；The optical fiber and transmission casing are installed on the inner hole of the hollow shaft, and the end of the transmission casing is provided with the focus lamp, and the diverging light of the optical fiber output is focused on the surface of scanned object by the focus lamp；The installation shell is set to one end of the outer sleeve and is internally provided with magnetic control set winding；The magnetic control set winding drives hollow shaft whirling vibration and drives optical fiber and focus lamp of reciprocating vibration by transmission casing；The present apparatus is compact-sized, reliable operation.
Description
Technical field
The invention belongs to Optical Coherence Tomography Imaging Technology fields, and in particular to a kind of optical tomography stiff arms probe.
Background technique
Optical Coherence Tomography Imaging Technology obtains the chromatography ability of depth direction based on low-coherent light principle of interference, by sweeping
Reconstruct biological tissue or material internal structure are retouched, signal contrast is derived from biological tissue or material internal optical reflection (scattering)
The spatial variations of characteristic.Optical scanner is particularly significant for imaging results.
It for internal, tissue or structure, is limited by probe source penetration depth, needs to peep using optical fiber in conjunction with interior
Mirror technology guides detection light to sample interior region, could obtain faultage image.Scanning means is peeped in existing, it is soft outer
Optical fiber and motor wire are passed through in casing, soft outer tube front end installs the transparent end cap of hard, fixes rotating electric machine in end cap.
Focus lamp is installed in optical fiber front end, and the diverging light of optical fiber output is focused to convergent beam.Motor shaft front end is installed by reflecting mirror, reflection
Mirror and optical fiber output light are angled.It is rotated by motor and realizes circular scanning.Since outer sleeve is soft material, in order to incite somebody to action
Interior snooping head reaches specific position, needs by certain tool, and can not achieve before optical fiber to scanning, the use of the program
It is subject to certain restrictions.
Summary of the invention
In view of the existing above problem of existing optical tomography probe, the present invention is intended to provide one kind is compact-sized,
The optical tomography stiff arms of reliable operation is popped one's head in.
The technical solution adopted by the present invention to solve the technical problems is: a kind of optical tomography stiff arms probe, including
Focus lamp, optical fiber, transmission casing, outer sleeve, installation shell and hollow shaft；The optical fiber and transmission casing are installed in described
The end of the inner hole of empty axis, the transmission casing is provided with the focus lamp, and the focus lamp is by the diverging of the optical fiber output
Light focuses on the surface of scanned object；The installation shell is set to one end of the outer sleeve and is internally provided with magnetic control
Set winding；The magnetic control set winding drives hollow shaft whirling vibration and drives optical fiber and focus lamp reciprocal by transmission casing
Vibration.
Further, the magnetic control set winding includes the first magnetic core, the second magnetic core, the first permanent magnet and the second permanent magnetism
Body；First magnetic core and the second magnetic core are set to the two sides up and down of magnetic control set winding, and first permanent magnet and second is forever
Magnet is set between first magnetic core and the second magnetic core and is formed hollow；The hollow shaft is in intermediate equilbrium position.
Further, the magnetic control set winding further includes current source, and the current source is set to the magnetic control position line
The outside of circle.
Further, the shaft section of the hollow shaft is asymmetric.
Further, the hollow shaft is soft magnetic material.
Further, gap is equipped between the transmission casing and focus lamp and the outer sleeve.
Further, the outer sleeve is fixedly connected with the installation shell.
Further, the hollow shaft is fixedly connected with the transmission casing.
Further, focus lamp front end installation settings has reflecting mirror.
Compared with prior art, the beneficial effects of the present invention are: the present apparatus is compact-sized, reliable operation, magnetic control position line
Circle driving hollow shaft whirling vibration simultaneously drives optical fiber and focus lamp of reciprocating vibration by transmission casing, realizes the hair of focus lamp output
Astigmatism is scanned in the surface reciprocating linear of scanned object；Optical fiber is mounted in transmission casing, hollow shaft around z-axis whirling vibration,
Focus lamp scans on the surface of scanned object along x-axis reciprocating linear；
Hollow shaft is when low-angle is of reciprocating vibration near equilbrium position, and deflection angle and operating current keep approximate and linear close
System provides even twisting moment using permanent magnet to reduce overall volume.
Detailed description of the invention
Fig. 1 show optical tomography stiff arms probe schematic diagram of the present invention；
Fig. 2 show schematic diagram of the optical tomography stiff arms probe for laterally scanning；
Fig. 3 a show the status diagram for not exporting electric current of magnetic control set winding；
Fig. 3 b show the status diagram of the output electric current of magnetic control set winding；
Fig. 4 show in existing and peeps scanning means schematic diagram.
In attached drawing: 1. focus lamps, 2. optical fiber, 3. scanned objects, 4. transmission casings, 5. outer sleeves, 6. peaces
Casing, 7. magnetic control set windings, 8. hollow shafts, 9. reflecting mirrors, 71 first magnetic cores, 72 second magnetic cores, 73 first permanent magnetism
Body, 74 second permanent magnets, 75 current sources, 11. motor drivers, 12. motor wires.
Specific embodiment
Below in conjunction with specific embodiment, invention is further described in detail.It should be appreciated that described herein specific
Embodiment is only used to explain the present invention, is not intended to limit the present invention.
The present invention pops one's head in view of existing optical tomography, as shown in figure 4, in soft outer tube 14 pass through optical fiber 13
And motor wire, soft outer tube front end install the transparent end cap 16 of hard, fix rotating electric machine 17 in end cap.Optical fiber front end peace
Focus lamp 15 is filled, the diverging light of optical fiber output is focused to convergent beam.Motor shaft front end is installed by reflecting mirror 18, reflecting mirror and light
Fine output light is angled.It is rotated by motor and realizes circular scanning.Since outer sleeve is soft material, in order to by interior snooping
Head reaches specific position, needs by certain tool, and can not achieve before optical fiber to scanning, the use of the program is by one
The problem of definite limitation, the present invention is intended to provide a kind of compact-sized, the optical tomography stiff arms probe of reliable operation.
As shown in Figure 1-3, a kind of optical tomography stiff arms probe, including focus lamp 1, optical fiber 2, transmission casing 4, outside
Casing 5, installation shell 6 and hollow shaft 8；The optical fiber 2 and transmission casing 4 are installed on the inner hole of the hollow shaft 8, the transmission
The end of casing 4 is provided with the condenser 1, and the focus lamp 1 focuses on the diverging light that the optical fiber 2 exports scanned
The surface of body 3；The installation shell 6 is set to one end of the outer sleeve 5 and is internally provided with magnetic control set winding 7；Institute
Magnetic control set winding 7 is stated to drive 8 whirling vibration of hollow shaft and drive optical fiber 2 and focus lamp 1 of reciprocating vibration by transmission casing 4,
Realize that the diverging light that focus lamp 1 exports is scanned in the surface reciprocating linear of scanned object 3；Wherein, the optical fiber 2 is mounted on institute
It states in transmission casing 4, for the hollow shaft 8 around z-axis whirling vibration, the focus lamp 1 is past along x-axis on the surface of scanned object 3
Complex line scanning, whole device is compact-sized, reliable operation.
Gap is equipped between the transmission casing 4 and focus lamp 1 and the outer sleeve 5；Transmission casing 4, focus lamp 1 can
It is moved in gap；The outer sleeve 5 can use machining tool one-pass molding with the transmission casing 4 simultaneously, guarantee phase
Same radius of curvature and concentricity.
The outer sleeve 5 is fixedly connected with the installation shell 6；The hollow shaft 8 and the fixed company of the transmission casing 4
It connects, keeps device working performance relatively reliable.
As shown in Fig. 2, then being realized laterally in the reflecting mirror 9 of the front end of focus lamp 1 installation certain angle if you need to laterally scan
Scanning.
The magnetic control set winding 7 includes the first magnetic core 71, the second magnetic core 72, the first permanent magnet 73, the second permanent magnet 74
With current source 75；First magnetic core 71 and the second magnetic core 72 are set to the two sides up and down of magnetic control set winding 7, and described first forever
Magnet 73 and the second permanent magnet 74 are set between first magnetic core 71 and the second magnetic core 72 and are formed hollow；The hollow shaft
8 in intermediate equilbrium position；The current source 75 is set to the outside of the magnetic control set winding 7；On the hollow shaft 8 not
Permanent magnet or coil are installed, to reduce its rotary inertia, improve vibration frequency.
As best shown in figures 3 a and 3b, when it is zero that current source 75, which exports electric current, two pieces of identical permanent magnets i.e. the first permanent magnet
73 and second permanent magnet 74, as shown in Figure 3a in the magnetic line of force direction that four magnetic poles A, B, C and D are generated, the magnetic line of force passes through hollow
Axis 8 couples, and hollow shaft 8 is due in intermediate equilbrium position.Magnetic control set winding 7 is because have magnetic core i.e. the first magnetic core 71 and the
The constraint of two magnetic cores 72, so the magnetic line of force leakage of surrounding space is seldom, the magnetic line of force generated such as top half coil in AB magnetic pole；
The coil of lower half portion is farther out and breaking by CD due to distance AB simultaneously, so lower half portion coil can in the magnetic field that AB is generated
To ignore.When current source 75 exports the electric current in direction as shown in Figure 3a, magnetic force that coil is generated in four magnetic poles A, B, C and D
Line direction is as shown in Figure 3b；A, the magnetic line of force direction of D is identical as Fig. 3 a, increases the clockwise direction that hollow shaft 8 is born and turns round
Square；B, the magnetic line of force direction of C and Fig. 3 a are on the contrary, reduce the counter clockwise direction torque that hollow shaft 8 is born；Hollow shaft 8 can edge
Deflection certain angle clockwise, reaches balance again；Such as change current direction in Fig. 3 b, hollow shaft 8 can be counterclockwise
Rotation.
In the above-described embodiments, the hollow shaft 8 provides medium for soft magnetic material for magnetic circuit, due to magnetic pole AD and magnetic pole
Two pairs of BC of magnetic pole torque is unequal, and hollow shaft 8 can be made to rotate to new equilbrium position, so the axis of the hollow shaft 8
Section is asymmetric；Hollow shaft section is not symmetrical simultaneously, and when external magnetic circuit changes, hollow shaft 8 can generate certain rotation
Torque.Hollow shaft 8 is when low-angle is of reciprocating vibration near equilbrium position, and deflection angle and operating current keep approximate and linear close
System provides even twisting moment using permanent magnet to reduce overall volume.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of optical tomography stiff arms probe, it is characterised in that: including focus lamp (1), optical fiber (2), transmission casing (4),
Outer sleeve (5), installation shell (6) and hollow shaft (8)；The optical fiber (2) and transmission casing (4) are installed on the hollow shaft
(8) end of inner hole, transmission casing (4) is provided with the focus lamp (1), and the focus lamp (1) is by the optical fiber (2)
The diverging light of output focuses on the surface of scanned object (3)；Installation shell (6) is set to the outer sleeve (5)
One end and it is internally provided with magnetic control set winding (7)；The magnetic control set winding (7) drives hollow shaft (8) whirling vibration and leads to
Crossing transmission casing (4) drives optical fiber (2) and focus lamp (1) of reciprocating vibration.
2. optical tomography stiff arms probe according to claim 1, which is characterized in that the magnetic control set winding (7)
Including the first magnetic core (71), the second magnetic core (72), the first permanent magnet (73) and the second permanent magnet (74)；First magnetic core (71)
The two sides up and down of magnetic control set winding (7), first permanent magnet (73) and the second permanent magnet are set to the second magnetic core (72)
(74) it is set between first magnetic core (71) and the second magnetic core (72) and is formed hollow；The hollow shaft (8) is in centre
Equilbrium position.
3. optical tomography stiff arms probe according to claim 1, which is characterized in that the magnetic control set winding (7)
It further include current source (75), the current source (75) is set to the outside of the magnetic control set winding (7).
4. optical tomography stiff arms probe according to claim 1 or 2, which is characterized in that the axis of the hollow shaft (8)
Section is asymmetric.
5. optical tomography stiff arms probe according to claim 4, which is characterized in that the hollow shaft (8) is soft magnetism
Property material.
6. optical tomography stiff arms according to claim 1 probe, which is characterized in that the transmission casing (4) and gather
Gap is equipped between Jiao Jing (1) and the outer sleeve (5).
7. optical tomography stiff arms probe according to claim 1, which is characterized in that the outer sleeve (5) and institute
Installation shell (6) is stated to be fixedly connected.
8. optical tomography stiff arms according to claim 1 probe, which is characterized in that the hollow shaft (8) with it is described
Transmission casing (4) is fixedly connected.
9. optical tomography stiff arms probe according to claim 1, which is characterized in that focus lamp (2) the front end peace
Installing is equipped with reflecting mirror (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910162477 | 2019-03-05 | ||
| CN2019101624772 | 2019-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110320180A true CN110320180A (en) | 2019-10-11 |
Family
ID=68119421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910479301.XA Pending CN110320180A (en) | 2019-03-05 | 2019-06-04 | A kind of optical tomography stiff arms probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110320180A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070076429A1 (en) * | 2005-09-30 | 2007-04-05 | Fujifilm Corporation | Optical probe |
| JP2008067889A (en) * | 2006-09-14 | 2008-03-27 | Pentax Corp | Optical coherence tomography probe for linear-scanning endoscope |
| US20120310042A1 (en) * | 2011-05-31 | 2012-12-06 | Karen Joos | Apparatus and method for real-time imaging and monitoring of an electrosurgical procedure |
| US20130079644A1 (en) * | 2011-09-23 | 2013-03-28 | Tyco Electronics Corporation | Optical Probe with Electric Motor |
| CN103767660A (en) * | 2014-02-20 | 2014-05-07 | 上海交通大学 | Endoscope |
| US20140177021A1 (en) * | 2011-09-02 | 2014-06-26 | Olympus Corporation | Optical scanning device, and endoscope, microscope, and projector each provided with the same |
| CN105769112A (en) * | 2016-03-30 | 2016-07-20 | 中国科学院上海光学精密机械研究所 | Optical probe for endoscopic imaging |
| CN210071657U (en) * | 2019-03-05 | 2020-02-14 | 天津欧斯迪医疗科技有限公司 | Optical tomography hard arm probe |
-
2019
- 2019-06-04 CN CN201910479301.XA patent/CN110320180A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070076429A1 (en) * | 2005-09-30 | 2007-04-05 | Fujifilm Corporation | Optical probe |
| JP2008067889A (en) * | 2006-09-14 | 2008-03-27 | Pentax Corp | Optical coherence tomography probe for linear-scanning endoscope |
| US20120310042A1 (en) * | 2011-05-31 | 2012-12-06 | Karen Joos | Apparatus and method for real-time imaging and monitoring of an electrosurgical procedure |
| US20140177021A1 (en) * | 2011-09-02 | 2014-06-26 | Olympus Corporation | Optical scanning device, and endoscope, microscope, and projector each provided with the same |
| US20130079644A1 (en) * | 2011-09-23 | 2013-03-28 | Tyco Electronics Corporation | Optical Probe with Electric Motor |
| CN103767660A (en) * | 2014-02-20 | 2014-05-07 | 上海交通大学 | Endoscope |
| CN105769112A (en) * | 2016-03-30 | 2016-07-20 | 中国科学院上海光学精密机械研究所 | Optical probe for endoscopic imaging |
| CN210071657U (en) * | 2019-03-05 | 2020-02-14 | 天津欧斯迪医疗科技有限公司 | Optical tomography hard arm probe |
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