CN103300855B - Electrode stationary positioned device for Breast electrical impedance imaging - Google Patents
Electrode stationary positioned device for Breast electrical impedance imaging Download PDFInfo
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- CN103300855B CN103300855B CN201310255952.3A CN201310255952A CN103300855B CN 103300855 B CN103300855 B CN 103300855B CN 201310255952 A CN201310255952 A CN 201310255952A CN 103300855 B CN103300855 B CN 103300855B
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- mobile jib
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Abstract
The present invention relates to the signal collecting device in a kind of Breast electrical impedance imaging device, in particular relates to a kind of device that multiple electrodes are positioned to measured target breast surface at equal intervals in same plane circumference.Described device includes mobile jib 2, pull bar 7, lifter plate 10 and bottom plate 13；Lifter plate 10 has the radially movable groove 18 of mobile jib, and mobile jib 2 passes through the radially movable groove 18 of mobile jib；One end of mobile jib 2 is rotationally connected with bottom plate 13, and the other end of mobile jib 2 is connected with electrode 1；The both ends of pull bar 7 are rotatablely connected with mobile jib 2, lifter plate 10 respectively.It is not required to expend time discharge electrode before test every time, with the change of spacing between lifter plate and bottom plate, electrode is set to be snug against with the breast tissue being put into the test space, by adjusting the contraction and expansion of spacing driving electrodes 1 at grade between lifter plate and bottom plate, so as to ensure uniformity that each detecting electrode contacts with breast tissue, reduce the model error for being reconstructed into picture, improve Detection results.
Description
Technical field
The present invention relates to the signal collecting device in a kind of Breast electrical impedance imaging device, and it will be more in particular relate to one kind
Individual electrode is positioned at the device of measured target breast surface in same plane circumference at equal intervals.
Background technology
Because the electrical impedance characteristicses of pathological tissues and normal bio tissue have significant difference, the doctor of bio-impedance principle is utilized
Imaging technique is learned, such as：Electrical impedance tomography（Electrical Impedance Tomography, EIT）, electrical impedance spectrum
Technology（Electrical Impedance Spectroscopy, EIS）, can effectively detect and addressing organisms lesion
Position.Using the medical imaging technology of bio-impedance principle by placing electrode in organism surface and injecting low frequency/small Power electricity
Stream, the distribution of impedance inside organism is detected by the voltage difference between detecting electrode, because the impedance of different biological tissues is special
Property it is different, it is detected using such technology, can structurally and functionally reflect the physiological property of each biological tissue.
Compared with the medicine imaging techniques such as CT, MRI, such technology have it is lossless it is harmless, cost is low, small volume, particularly to early stage
The advantages that cancer stove sensitivity.
Because electrical impedance galactophore imaging technique is to put multiple electrodes according to certain arrangement mode just to can guarantee that imaging
Quality, the electrode of different test targets, which is put, will meet unified pattern, if therefore electrode by operator be rest directly upon by
Target surface is surveyed, it is difficult to ensure that electrode arrangement and the pattern consistent and uniform preplaned and the uniformity of different test targets,
There is negative effect to image quality, and be required for taking a substantial amount of time discharge electrode before testing every time.
Because test target is various, often there is test skin of breast and can not fully be contacted with some electrodes, or even occur empty
Gap and cause some electrodes and test breast skin do not contact, some electrodes and skin contact are bad, cause in electrod-array
Some electrodes can not provide corresponding real electric signal, and the imaging effect and diagnosis that certainly will influence electrical impedance galactophore imaging system are tied
Fruit.
Each electrode and the intensity of the contact of tested skin of breast should meet the algorithm of imaging system rear end, image procossing
It is required that and the contact strength of electrode and skin influence conductance, the conductance between each electrode and skin directly affect system again
Imaging effect and diagnostic result.
The content of the invention
For the electrode stationary positioned device of Breast electrical impedance imaging, the distributing position of electrode, arrangement mode are fixed, protected
Card electrode arrangement and the pattern that preplans unanimously, the uniformity of the uniformity of electrode arrangement and different test targets；In the dress
Put with make electrod-array shrink, expansion device, facilitate test target be positioned in the device to test space in simultaneously and electrode
Fully contact, the intensity of contact of each electrode with testing skin of breast is can adjust, image quality is improved, convenient use, carries
High detection effect and efficiency.
For the electrode stationary positioned device of Breast electrical impedance imaging, including mobile jib, pull bar, lifter plate and bottom plate；Lifting
Plate has the radially movable groove of mobile jib, and mobile jib passes through the radially movable groove of mobile jib；One end of mobile jib is hinged on bottom plate, mobile jib it is another
One end is connected with electrode；The both ends of pull bar rotate be hinged with mobile jib, lifter plate respectively.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, the mobile jib are three or more than three,
Mobile jib is rotated with bottom plate and is hinged, and the tie point of mobile jib and bottom plate is circumferentially equally distributed on bottom plate, the company of pull bar and lifter plate
Contact is circumferentially equally distributed on lifter plate.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, the lifter plate are parallel with bottom plate.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, described device include electrode fixed column, electricity
Pole, mobile jib are connected by electrode fixed column with electrode.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, the radially movable groove of mobile jib is rectangle
Hole, circumference is equally distributed on lifter plate.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, described device includes screw mandrel, screw mandrel is fixed
Seat, screw mandrel fixed seat are fixed in lifter plate, and one end and the screw mandrel fixed seat of screw mandrel coordinate, and screw mandrel forms screw mandrel through bottom plate and passed
Dynamic structure, the other end of screw mandrel have tumbler, and tumbler is fixed on bottom plate.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, described device include sliding vertically axle, risen
Drop plate and/or bottom plate are slidably connected with sliding vertically axle.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, including upper plate, the middle part of upper plate is for leading
Bar is passed through and the lack part of activity, upper plate are fixedly connected with sliding vertically axle.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, the tumbler are insertion screw mandrel electricity
Machine.
The above-mentioned electrode stationary positioned device for being used for Breast electrical impedance imaging, it is described to be slidably connected with sliding vertically axle
Lifter plate and/or bottom plate on have sliding guide sleeve, sliding guide sleeve, which is enclosed on, to slide vertically on axle.
Beneficial effect：Electrode is fixed on mobile jib upper end or by being connected by electrode fixed column with mobile jib, and electrode is fixed
And circumference is equally spaced at grade, distributing position, the arrangement mode of electrode are fixed, and ensure that electrode arrangement and meter in advance
The pattern drawn is consistent, the uniformity of the uniformity of electrode arrangement and different subjects；It is not required to expend time discharge before test every time
Electrode, with the change of spacing between lifter plate and bottom plate, electrode is set to be snug against with the breast tissue being put into the test space,
By adjusting spacing between lifter plate and bottom plate, so as to ensure uniformity that each detecting electrode contacts with breast tissue, reduce
The model error of picture is reconstructed into, improves Detection results.,
The radially movable groove of mobile jib of the present invention, refers to have on lifter plate and is passed through and with the lifter plate of place for mobile jib
The heart is the center of circle, and mobile jib does the slotted eye or lack part of radial motion through lifter plate position for the circle of circular arc.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of embodiment 1
Accompanying drawing 2 is the schematic diagram of 1 lifter plate of embodiment 10
Accompanying drawing 3 is the schematic diagram of 2 lifter plate of embodiment 10
Accompanying drawing 4 is the schematic diagram of embodiment 3
Accompanying drawing 5 is the schematic cross-sectional view of embodiment 4
Accompanying drawing 6 is the schematic diagram of embodiment 5
Accompanying drawing 7 is a kind of mobile jib structural representation described in embodiment 6
Accompanying drawing 8 is a kind of electrode fixed column 5 and mobile jib 2 and the connection diagram of electrode 1 described in embodiment 1（Can be according to electricity
The arrangement requirement of pole array, an electrode fixed column 5 can be connected with two or more electrodes 1）
1-electrode, 2-mobile jib, 3-external screw thread straight pin A 4-upper plate, 5-electrodes fixed column 6-outer spiral shell
Line straight pin B 7-pull bar, 8-pull bars fixed seat 9-slide vertically axle 10-lifter plate, 11-sliding guide sleeve
12-fixed plate, 13-bottom plate, 14-straight pin 15-insertion lead screw motor 16-screw mandrel, 17-screw mandrel fixed seat,
The radially movable groove of 18-mobile jib, 19-pull bar fixing hole, 20-electrode or electrode fixed column connecting hole, the installation of 21-straight pin
Hole.
Embodiment
Embodiment 1：For Breast electrical impedance imaging electrode stationary positioned device, described device include mobile jib 2, pull bar 7,
Lifter plate 10 and bottom plate 13；Lifter plate 10 has the radially movable groove 18 of mobile jib, and mobile jib 2 passes through the radially movable groove 18 of mobile jib；Mobile jib 2
One end is rotationally connected with bottom plate 13, and the other end of mobile jib 2 is connected with electrode 1；The both ends of pull bar 7 respectively with mobile jib 2, lifter plate
10 rotation connections.
Above-mentioned mobile jib 2 is three or more than three, and mobile jib 2 is rotatablely connected with bottom plate 13, the tie point of mobile jib 2 and bottom plate 13
Circumferentially it is equally spaced on base 13, the tie point of pull bar 7 and lifter plate 10 is circumferentially equally distributed on lifter plate 10；Institute
The axis for stating the round platform that rotation connection makes mobile jib 2 be surrounded along each mobile jib 2 moves radially.
In said apparatus the quantity of electrode 1 because the algorithm that computer uses to gather number of signals requirement it is different without
Together, usually 16 electrodes 1；The top of usually one mobile jib 2 connects an electrode 1, and the quantity of mobile jib 2 is generally 16.
Said apparatus may include electrode fixed column 5, and mobile jib 2 is connected by electrode fixed column 5 with electrode 1；One electrode is consolidated
The one end of fixed column 5 is connected with mobile jib 2, and the other end is connected with one or more electrodes 1.
It is usually that a mobile jib 2 is corresponding with a pull bar 7 in said apparatus, but can be also supported jointly by two pull bars 7
A piece mobile jib 2, two pull bars 7 are fixed on the both sides at 2 same position of mobile jib, and two pull bars 7 are separately fixed on lifter plate 10
Two points.
In said apparatus, the electrode tip of electrode 1 is located on the circumference of same circle.
During using said apparatus, first measured target is placed into the circular test space that electrode 1 is surrounded, then to lifting
10 1 upward thrusts of plate, lifter plate 10 just promote mobile jib 2 to close by pull bar 7, the electrode being connected with the termination of mobile jib 2
1 moves to the measured target surface that electrode 1 is surrounded, and after electrode 1 contacts measured target surface, stops promoting lifter plate 10 simultaneously
Fixed lifter plate 10, signal acquisition terminates, and promotes lifter plate 10 to be moved to bottom plate 13, and lifter plate 10 pulls mobile jib 2 by pull bar 7
Expansion, band moving electrode 1 move, and electrode 1 separates with measured target surface.
Embodiment 2：With embodiment 1, difference is the present embodiment basic structure：Mobile jib on lifter plate 10 is radially movable
Groove 18 is the rectangle slotted eye that width is more than the every width of mobile jib 2, and the radially movable circumference of groove 18 of mobile jib is equally distributed on lifter plate
On 10；The quantity of the radially movable groove 18 of mobile jib is consistent with the quantity of mobile jib 2, and mobile jib 2 passes through the mobile jib radial direction on lifter plate 10
The center of circle for the circle that loose slot 18 is surrounded on lifter plate 10 around the radially movable groove of mobile jib（The center of circle is located at each mobile jib 2 and enclosed
Into round platform axis on）Radially distribute；The length of the radially movable groove 18 of mobile jib determines the radially movable model of mobile jib 2
Enclose, the radially movable width of groove 18 of mobile jib determines the non-radial scope of activities of mobile jib 2（The width of the radially movable groove 18 of mobile jib is preferably
Its two long sides can clamp mobile jib 2, but the and can of mobile jib 2 is radially movable in the radially movable groove 18 of mobile jib, i.e., mobile jib 2 is in mobile jib footpath
Slided into loose slot 18, so can effectively prevent the non-radial swing of electrode 1）.
Scheme described in embodiment 1 or embodiment 2, it is desirable to which lifter plate 10 is parallel to each other with bottom plate 13, to each rotating junction
Part requires higher, once gap occurs in connecting portion, lifter plate 10 will be made to produce the transverse movement for swinging i.e. lifter plate 10, risen
Drop plate 10 is not parallel to each other with bottom plate 13, not only influences the positioning precision of electrode 1, it is also possible to drop the device rotating connecting part
Service life, to overcome this shortcoming, the motion mode of lifter plate 10 and bottom plate 13 must be limited, prevent lifter plate 10 and bottom
There is the relative motion of horizontal direction while upper and lower relative motion in plate 13, can use slide vertically axle and lifter plate 10 and/
Or bottom plate 13 is slidably connected：
Embodiment 3：With embodiment 1 or embodiment 2, difference is the present embodiment basic structure：Described device includes perpendicular
To sliding axle 9, axle 9 is slid vertically perpendicular to bottom plate 13 and is fixedly connected, there is sliding guide sleeve 11, slide-and-guide on lifter plate 10
Set 11, which is enclosed on, to slide vertically on axle 9.The space that sliding vertically the presence of axle 9 can be surrounded the electrode 1 on mobile jib 2 occurs without
The skew of horizontal direction, simply with the distance between lifter plate 10 and bottom plate 13 expansion with reduce and equal proportion reduce or
Expand, electrode is accurately positioned, and during using the device, only lifter plate 10 need to be made to be slided on axle 9 is slid vertically；
In order that mobile jib 2 surrounds in the present embodiment described device space is more stable, electrode is more accurately positioned, described device
Also include upper plate 4, the middle part of upper plate 4 is to be passed through for mobile jib 2 and the lack part of activity, slide vertically the other end of axle 9 with it is upper
Plate 4 is fixedly connected；Lifter plate 10 can only just slide on axle 9 is slid vertically, and slide vertically when axle 9 slides up and down and be not easy to put
It is dynamic；
The axle 9 that slides vertically described in the present embodiment is generally two or more, preferably first selects three --- because three
Point determines a plane；The convenient alternative point of contact on bottom plate, lifter plate, upper plate of axle, general connection are slid vertically from four
Point is distributed on four plates corresponding four sides or four angles, and four slide vertically axle 9 and fixed with the difference on bottom plate 13
Link, then the sliding guide sleeve being each passed through on lifter plate 10.Due to the presence of sliding guide sleeve 11, two slide vertically axle 9
Also lifter plate 10 and the keeping parallelism of bottom plate 13 can be made, not in the relative motion of water direction, but two service lifes for sliding vertically axle
Than three or more than three service lifes for sliding vertically axle are short.
Embodiment 4：The present embodiment basic structure is with above-mentioned any embodiment, and described device includes screw mandrel 16, screw mandrel is fixed
Seat 17, screw mandrel fixed seat 17 is fixed in lifter plate 10, and one end and the screw mandrel fixed seat 17 of screw mandrel 16 coordinate, and screw mandrel 16 passes through bottom
Plate 13, external screw thread and the screw-internal thread fit on bottom plate 13 of screw mandrel 16, the other end of screw mandrel 16 is tumbler；Tumbler is consolidated
It is scheduled on the lower surface of bottom plate 13.
Pull bar 7 is rotatablely connected with mobile jib 2 using external screw thread straight pin A3 in the present embodiment described device；Pull bar 7 and lifting
Plate 10 is using external screw thread straight pin B6 rotation connections；Mobile jib 2 is rotatablely connected with bottom plate 13 using straight pin 14.
Tumbler described in the present embodiment is lead screw motor 15, and lead screw motor 15 is fixed on the lower surface of bottom plate 13.
In above-described embodiment, mobile jib and bottom plate, pull bar and mobile jib, the rotation connection of lifter plate or the be hinged available hinge of rotation
Structure realizes each phase with regard to being rotatably assorted between part such as rotating shaft, bearing pin, hinge etc., and lifter plate moves up and down（Or lifter plate with
Relative vertical motion between bottom plate）Can by lead screw motor, screw mandrel, it is manual the methods of control.
Embodiment 5：With embodiment 3, difference is the present embodiment basic structure：Lifter plate 10 is solid with sliding vertically axle 9
Fixed connection, sliding guide sleeve 11 are located on bottom plate 13, and sliding guide sleeve 11, which is enclosed on, to slide vertically on axle 9.
Plate where sliding guide sleeve 11 is fixed in embodiment 3 and embodiment 5（Lifter plate 10 or bottom plate 13）On, and
And sliding guide sleeve 11 is coaxial with sliding vertically axle, sliding guide sleeve 11 is fitted close with sliding vertically axle 9, can both make lifter plate
10 or bottom plate 13 freely up and down slide, while slide vertically axle 9 and can effectively prevent lifter plate 10, bottom plate 13 from swinging laterally, really
The uniformity that each mobile jib 2 is closed with moving electrode 1, expanded is protected, so as to improve the accuracy of the positioning of electrode 1.
Embodiment 6：A kind of mobile jib 2, electrode or electrode or electrode fixed column connecting hole 20 and the mobile jib footpath on the top of mobile jib 2
It is consistent to activity direction（After electrode 1 is arranged on mobile jib 2, the center of circle for the circle that the conductive head of electrode 1 is surrounded towards electrode 1）；
The pull bar fixing hole 19 of mobile jib 2, which is used to rotate with the one end of pull bar 7, to be hinged, and the straight pin mounting hole 21 of mobile jib 2 is used for and bottom plate 13
Rotate be hinged.
Claims (10)
1. for the electrode stationary positioned device of Breast electrical impedance imaging, it is characterised by：Described device includes mobile jib (2), pull bar
(7), lifter plate (10) and bottom plate (13)；The radially movable groove of mobile jib (18) is provided with lifter plate (10), mobile jib (2) passes through mobile jib
Radially movable groove (18)；One end of mobile jib (2) is rotatablely connected with bottom plate (13), and the other end of mobile jib (2) is connected with electrode (1)；
The both ends of pull bar (7) are rotatablely connected with mobile jib (2) and lifter plate (10) respectively.
2. the electrode stationary positioned device according to claim 1 for Breast electrical impedance imaging, it is characterised by：The master
Bar (2) is more than three, and the tie point of mobile jib (2) and bottom plate (13) is circumferentially equally distributed on bottom plate (13), pull bar (7) with
The tie point of lifter plate (10) is circumferentially equally distributed on lifter plate (10).
3. the electrode stationary positioned device according to claim 1 for Breast electrical impedance imaging, it is characterised by：The liter
It is parallel with bottom plate (13) that plate (10) drops.
4. the electrode stationary positioned device according to claim 1 for Breast electrical impedance imaging, it is characterised by：The dress
Put and be connected including electrode fixed column (5), mobile jib (2) by electrode fixed column (5) with electrode (1).
5. the electrode stationary positioned device according to claim 1 for Breast electrical impedance imaging, it is characterised by：The master
The radially movable groove of bar is rectangular hole, and circumference is equally distributed on lifter plate (10).
6. the electrode stationary positioned device according to claim 1 for Breast electrical impedance imaging, it is characterised by：The dress
Put and be fixed on including screw mandrel (16), screw mandrel fixed seat (17), screw mandrel fixed seat (17) in lifter plate (10), one end of screw mandrel (16)
Coordinate with screw mandrel fixed seat (17), screw mandrel (16) forms screw rod transmission structure through bottom plate (13), and the other end of screw mandrel (16) has
Tumbler, tumbler are fixed on bottom plate (13).
7. the electrode stationary positioned device according to claim 6 for Breast electrical impedance imaging, it is characterised by：Described turn
Dynamic device is insertion lead screw motor (15).
8. the electrode stationary positioned device for being used for Breast electrical impedance imaging according to claim 1-6 any claims,
It is characterised by：The electrode stationary positioned device includes sliding vertically axle (9), lifter plate (10) and/or bottom plate (13) with it is vertical
Sliding axle (9) connects.
9. the electrode stationary positioned device according to claim 8 for Breast electrical impedance imaging, it is characterised by：Including upper
Plate (4), the middle part of upper plate (4) are to be passed through for mobile jib (2) and the lack part of activity, upper plate (4) and to slide vertically axle (9) fixed
Connection.
10. the electrode stationary positioned device according to claim 8 for Breast electrical impedance imaging, it is characterised by：With erecting
Sliding guide sleeve (11), sliding guide sleeve are provided with the lifter plate (10) and/or bottom plate (13) being slidably connected to sliding axle (9)
(11) it is enclosed on and slides vertically on axle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255952.3A CN103300855B (en) | 2013-06-25 | 2013-06-25 | Electrode stationary positioned device for Breast electrical impedance imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255952.3A CN103300855B (en) | 2013-06-25 | 2013-06-25 | Electrode stationary positioned device for Breast electrical impedance imaging |
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| Publication Number | Publication Date |
|---|---|
| CN103300855A CN103300855A (en) | 2013-09-18 |
| CN103300855B true CN103300855B (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310255952.3A Active CN103300855B (en) | 2013-06-25 | 2013-06-25 | Electrode stationary positioned device for Breast electrical impedance imaging |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6122544A (en) * | 1998-05-01 | 2000-09-19 | Organ; Leslie William | Electrical impedance method and apparatus for detecting and diagnosing diseases |
| CN1592596A (en) * | 2000-12-28 | 2005-03-09 | Z－技术加拿大公司 | Electrical impedance method and apparatus for detecting and diagnosing diseases |
| CN101340847A (en) * | 2005-12-20 | 2009-01-07 | Dixtal生物制药工业贸易有限公司 | Electrode assembly for electrical impedance tomography |
| CN102106731A (en) * | 2011-02-22 | 2011-06-29 | 中国医学科学院生物医学工程研究所 | Electrical impedance tomography measuring method |
| CN102973269A (en) * | 2012-12-24 | 2013-03-20 | 重庆大学 | Device and method for measuring crossed plane electrical impedance tomography |
| CN203314961U (en) * | 2013-06-25 | 2013-12-04 | 思澜科技（成都）有限公司 | Electrode fixing and positioning device for electrical impedance breast imaging |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120271141A1 (en) * | 2009-10-21 | 2012-10-25 | Epi-Sci. LLC | Skin surface electrodes |
-
2013
- 2013-06-25 CN CN201310255952.3A patent/CN103300855B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6122544A (en) * | 1998-05-01 | 2000-09-19 | Organ; Leslie William | Electrical impedance method and apparatus for detecting and diagnosing diseases |
| CN1592596A (en) * | 2000-12-28 | 2005-03-09 | Z－技术加拿大公司 | Electrical impedance method and apparatus for detecting and diagnosing diseases |
| CN101340847A (en) * | 2005-12-20 | 2009-01-07 | Dixtal生物制药工业贸易有限公司 | Electrode assembly for electrical impedance tomography |
| CN102106731A (en) * | 2011-02-22 | 2011-06-29 | 中国医学科学院生物医学工程研究所 | Electrical impedance tomography measuring method |
| CN102973269A (en) * | 2012-12-24 | 2013-03-20 | 重庆大学 | Device and method for measuring crossed plane electrical impedance tomography |
| CN203314961U (en) * | 2013-06-25 | 2013-12-04 | 思澜科技（成都）有限公司 | Electrode fixing and positioning device for electrical impedance breast imaging |
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