CN108201448A - X-ray detector anticollision device, collision-prevention device, method and its proximity sensor - Google Patents
X-ray detector anticollision device, collision-prevention device, method and its proximity sensor Download PDFInfo
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- CN108201448A CN108201448A CN201611169147.9A CN201611169147A CN108201448A CN 108201448 A CN108201448 A CN 108201448A CN 201611169147 A CN201611169147 A CN 201611169147A CN 108201448 A CN108201448 A CN 108201448A
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/10—Safety means specially adapted therefor
- A61B6/102—Protection against mechanical damage, e.g. anti-collision devices
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
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Abstract
The invention discloses a kind of x-ray detector anticollision device, collision-prevention device, method and its proximity sensors.Wherein, proximity sensor includes：One sensing antenna plate is made of saturating X-ray material, and the side of X-ray signal is received positioned at the x-ray detector, for sensing the capacitance signal in search coverage；It with an analog-to-digital conversion module, is electrically connected with the sensing antenna plate, for the capacitance signal to be converted to digital capacitance value by analog quantity.Technical solution in the present invention can realize the Anti-bumping protection of x-ray detector.
Description
Technical field
The present invention relates to field of medical device, particularly a kind of x-ray detector anticollision device, collision-prevention device, method and its close sensing
Device.
Background technology
In the x-ray imagings equipment such as X-ray machine, X-ray shooting system, generally include：X ray generator (such as X-ray ball
Pipe) and x-ray detector (such as flat panel detector).Wherein, x ray generator is oppositely arranged with flat panel detector, and checked object is (such as
Human body) it is placed in therebetween.X ray generator is used to emit X-ray signal；Flat panel detector is used to obtain transmitted through checked object
X-ray signal, and be converted into electric signal, be imaged with output to corresponding image processing module.
In order to carry out multi-faceted X-ray imaging inspection to checked object, x ray generator and/or x-ray detector etc. may
Degree of freedom with multiple directions.For example, X-direction, Y-direction, vertical direction and rotation on horizontal plane etc..Due to X ray
The moving components such as generator and/or x-ray detector have the movement of multiple degree of freedom, therefore sometimes since personnel do not notice it
Movement or the moving component such as are misused at the reasons, cause the generations such as moving component and patient, medical worker or other barriers
Collision so on the one hand it is possible that the injury to personnel can be caused, on the other hand may also can be caused to x-ray imaging equipment fortune
The damage of dynamic component or barrier.Therefore in order to enable x-ray imaging equipment is safer for patient and medical worker and reduce
For the possibility that x-ray imaging equipment damages in itself, need to carry out anticollision design to x-ray imaging equipment.
It is typically at present to add the travel switch of some contacts for the anticollision of x-ray imaging equipment design, either
Additional untouchable radar or sensor etc. realize, either which kind of realization method, be required for getting around x ray generator and
X-ray road between x-ray detector, in order to avoid X-ray signal is blocked.
In addition, those skilled in the art also are being dedicated to finding other anticollision solutions.
Invention content
In view of this, the present invention proposes a kind of x-ray detector anticollision device, collision-prevention device and method, on the other hand proposes one kind and connects
Nearly sensor, to realize the Anti-bumping protection of x-ray detector.
A kind of proximity sensor proposed by the present invention, applied to x-ray detector, including：One sensing antenna plate, using saturating X
Luminescent material is made, and the side of X-ray signal is received positioned at the x-ray detector, for sensing the capacitance signal in search coverage；
It with an analog-to-digital conversion module, is electrically connected with the sensing antenna plate, for the capacitance signal to be converted to number by analog quantity
Word capacitance.
In one embodiment, further comprise：One protection laminate, is made of saturating X-ray material, with the modulus
Modular converter is electrically connected, and between the sensing antenna plate and the x-ray detector, for protecting the sensing antenna plate
By ambient noise interference.
In one embodiment, the sensing antenna plate receives the cover of the side of X-ray signal for the x-ray detector
Shell.
In one embodiment, the sensing antenna plate is made of carbon fibre material.
In one embodiment, the sensing antenna plate includes at least one sensing antenna.
In one embodiment, the sensing antenna plate is with a plurality of annulars, square or polygon hollow out knot
The saturating X-ray plate of material of structure.
A kind of x-ray detector anticollision device, collision-prevention device proposed by the present invention, including：One control module and one above-mentioned close to sensing
Device；The control module is used for according to corresponding between the digital capacitance value and predetermined capacitance and target range
Relationship determines target range value, and the anticollision threshold value of the target range value and a setting is compared, and is tied according to comparing
Fruit controls corresponding motor.
In one embodiment, the target range value and the first anticollision threshold value are compared by the control module,
When the target range value is more than the first anticollision threshold value, after control drives the motor of the x-ray detector movement to perform
Move back operation.
In one embodiment, it is more than described first anti-that the control module, which is further used in the target range value,
When hitting threshold value, the target range value and the second anticollision threshold value are compared, are more than described second in the target range value
During anticollision threshold value, control drives the motor of the C arms movement of the affiliated X-ray machine of x-ray detector to stop driving.
A kind of x-ray detector avoiding collision proposed by the present invention, using in above-mentioned proximity sensor sensing search coverage
Capacitance signal, and the capacitance signal is converted into digital capacitance value by analog quantity；According to the digital capacitance value and in advance
The first correspondence between determining capacitance and target range, determines target range value；The target range value is set with one
Determine threshold value to be compared, according to comparison result, corresponding motor is controlled.
In one embodiment, it is described to be compared target range value and an anticollision threshold value set, according to comparing
As a result, corresponding motor is controlled, including：The target range value and the first anticollision threshold value are compared, in the mesh
When subject distance value is more than the first anticollision threshold value, control drives the motor of the x-ray detector movement to perform back operation.
In one embodiment, when the target range value is more than the first anticollision threshold value, further comprise：It will
The target range value is compared with the second anticollision threshold value, when the target range value is more than the second anticollision threshold value,
Control drives the motor of the C arms movement of the affiliated X-ray machine of x-ray detector to stop driving.
From said program as can be seen that since saturating X-ray material being used to make the sensing day of proximity sensor in the present invention
Line plate, therefore the proximity sensor can be placed in the side that x-ray detector receives X-ray signal, for sensing the detecting area of X-ray trackside
Capacitance signal in domain determines the distance between barrier and proximity sensor, and then detect X-ray road according to the capacitance signal
Side whether there is possible hazardous collision, so as to make up the X between x ray generator and x-ray detector in the prior art
Shortcoming of the light path without anti-collision facility realizes the Anti-bumping protection of x-ray detector.
Further, laminate is protected made of a saturating X-ray material by being set between sensing antenna and x-ray detector,
The sensing antenna plate can be protected, and by ambient noise interference, reduction parasitic capacitance makes sensor sensing range more concentrate, so as to
Improve the detection accuracy of sensing antenna plate.
In addition, the saturating X-ray case of the side of X-ray signal is received by using X-ray detecting plate to realize sensing antenna plate, no
Existing resource can be only made full use of, without adding more additional assemblies, and no need to increase equipment volumes.And further
Ground can be also transformed the X-ray case so that the sensing antenna plate includes mutiple antennas, so as to increase detection model
It encloses, realizes the detection of 3D ranges.
Finally, the proximity sensor in the embodiment of the present invention compares the sounding such as other sonacs, infrared sensor hair
The sensor of light will not generate extra interference, and cost is relatively low to operating personnel.
Description of the drawings
Below will detailed description of the present invention preferred embodiment by referring to accompanying drawing, make those of ordinary skill in the art more
The above and other feature and advantage of the clear present invention, in attached drawing：
Fig. 1 is a kind of exemplary block diagram of x-ray detector anticollision device, collision-prevention device in the embodiment of the present invention.
Fig. 2 is a kind of exemplary process diagram of x-ray detector avoiding collision in the embodiment of the present invention.
Wherein, reference numeral is as follows：
Specific embodiment
In view of in conventional crash scheme, being required for getting around the X-ray road between x ray generator and x-ray detector, in order to avoid
X-ray signal is blocked, if therefore there are the improper shiftings of patient on the X-ray road between x ray generator and x-ray detector
The situation that may lead to hazardous collision such as dynamic, then can not accurately detect.Overcome can only by the inventor in the present invention thus
Get around the inertial thinking of X-ray road setting anticollision device, collision-prevention device, it is proposed that a kind of novel x-ray detector anticollision implementation, to make up X
Shortcoming of the X-ray road without anti-collision facility between ray generator and x-ray detector.
To make the object, technical solutions and advantages of the present invention clearer, by the following examples to of the invention further detailed
It describes in detail bright.
Fig. 1 is a kind of exemplary block diagram of x-ray detector anticollision device, collision-prevention device in the embodiment of the present invention.As shown in Figure 1, this is anti-
Collision device 1 may include：One proximity sensor 11 and a control module 12.
Wherein, the proximity sensor 11 may include that a sensing antenna plate 111, one protects 112 and one analog-to-digital conversion of laminate
Module 113.Wherein, sensing antenna plate 111 is made of saturating X-ray material, and receives the one of X-ray signal positioned at x-ray detector 2
Side, i.e. x-ray detector 2 are towards the side of x ray generator 3, for sensing the capacitance signal in search coverage Z.Wherein, it is different
Capacitance signalling values correspond to different distance between barrier 4 (such as patient) and sensing antenna plate 111 (i.e. proximity sensor 11),
For convenience of description, the distance between barrier and proximity sensor are referred to as target range herein, by capacitance signal
Measurement would know that target range value, so as to predict in search coverage Z with the presence or absence of can between sensing antenna plate 111 and patient
The hazardous collision of energy.
Protection laminate 112 is equally made of saturating X-ray material, and is detected positioned at the sensing antenna plate 111 and the X-ray
Between device 2, for the sensing antenna plate 111 to be protected to be reduced parasitic capacitance by ambient noise interference, make sensor sensing model
It encloses and more concentrates, so as to improve the induction precision of capacitance signal, reduce the signal-to-noise ratio of signal.Generally, which can compare
Sensing antenna plate 111 is more wider.Certainly, in certain applications, protection laminate 112 can also be omitted according to actual needs.
Analog-to-digital conversion module 113 is electrically connected, and with the sensing antenna plate 111 and the protection laminate 112 by institute respectively
State the capacitance that the capacitance signal that sensing antenna plate 111 senses is converted to digital quantity by analog quantity.During specific implementation, the modulus
Modular converter 113 can be a modulus conversion chip or may be other types of circuit.The analog-to-digital conversion module 113 can
To be located on the side wall of the case 21 of x-ray detector 2 or deviate from the one of x ray generator positioned at the case 21 of x-ray detector 2
Side.
Inventor in the present invention is after performing creative labour and experiment, it is believed that the case 21 of existing x-ray detector 2
In the side for receiving X-ray signal, i.e., it is saturating X-ray material, such as carbon fibre material, and the carbon towards the side of x ray generator 3
Fibrous material can be used for manufacturing the sensing antenna plate of capacitive proximity sensor, therefore the sensing antenna in the embodiment of the present invention
Plate 111 can be the case 111 for the side that the x-ray detector 2 receives X-ray signal.Further, in order to increase sensing antenna
The case 111 can also be further processed in the investigative range of plate so that the sensing antenna plate 111 includes at least one
A sensing antenna.For example, the sensing antenna plate 111 can be divided into multiple regions, such as 2 regions, 4 regions, 6 regions, 8
A region or the region of other odd or even numbers, and an annular, square or polygon can be processed in each region
Etc. shapes engraved structure, so as to form multiple sensing antennas.It is integrated that this realization method can be understood as sensing antenna plate 111
On the case that the side of X-ray signal is received in x-ray detector 2.In addition, the protection laminate 112 in the embodiment of the present invention can also
It is made, and can be equally integrated on the case for the side that x-ray detector 2 receives X-ray signal of carbon fibre material, this
When, it can be understood as proximity sensor 11 is integrated on the case for the side that x-ray detector 2 receives X-ray signal.
In addition, in other embodiments, sensing antenna plate 111 can also use other realization methods to realize, such as can
To be attached on the outside of the case for the side that x-ray detector 2 receives X-ray signal or receive X-ray signal positioned at x-ray detector 2
On the inside of the case of side.When sensing antenna plate 111 is attached on the outside of the case for the side that x-ray detector 2 receives X-ray signal,
The case that the x-ray detector 2 receives the side of X-ray signal can be used for realizing above-mentioned protection laminate 112.
Control module 12 is used for according to the capacitance and predetermined capacitance and target range for being converted to digital quantity
Between correspondence, target range value, i.e. the distance between barrier and proximity sensor value are determined, by the target range
Value and the anticollision threshold value of a setting are compared, and according to comparison result, corresponding motor is controlled.
For example, in one embodiment, control module 12 can carry out the target range value and the first anticollision threshold value
Compare, and when the target range value is more than the first anticollision threshold value, control drives the electricity that the x-ray detector 2 moves
Machine performs back operation.
For another example, in another embodiment, it is more than institute that control module 12, which can be further used in the target range value,
When stating the first anticollision threshold value, the target range value and the second anticollision threshold value are compared, are more than in the target range value
During the second anticollision threshold value, control drives the motor of the C arms movement of the affiliated X-ray machine of x-ray detector to stop driving.Its
In, the second anticollision threshold value is more than the first anticollision threshold value.
Fig. 2 is a kind of exemplary process diagram of x-ray detector avoiding collision in the embodiment of the present invention.Shown in Fig. 2, this method
It may include following steps：
Step 201, search coverage is sensed using the proximity sensor 11 described in x-ray detector anticollision device, collision-prevention device shown in Fig. 11
Interior capacitance signal, and the capacitance signal is converted to the capacitance of digital quantity by analog quantity.
Step 202, according to the capacitance for being converted to digital quantity and predetermined capacitance and target range it
Between correspondence, determine target range value；By the target range value and one set anticollision threshold value be compared, according to than
Compared with as a result, controlling corresponding motor.
For example, in one embodiment, the target range value and the first anticollision threshold value can be compared, and in institute
When stating target range value more than the first anticollision threshold value, the motor execution that control drives the x-ray detector 2 to move retreats behaviour
Make.
For another example, in another embodiment, it is more than first anticollision that can be further used in the target range value
During threshold value, the target range value and the second anticollision threshold value are compared, are more than described second anti-in the target range value
When hitting threshold value, control drives the motor of the C arms movement of the affiliated X-ray machine of x-ray detector to stop driving.Wherein, the second anticollision
Threshold value is more than the first anticollision threshold value.
From said program as can be seen that since saturating X-ray material being used to make the sensing day of proximity sensor in the present invention
Line plate, therefore the proximity sensor can be placed in the side that x-ray detector receives X-ray signal, for sensing the detecting area of X-ray trackside
Capacitance signal in domain determines the distance between barrier and proximity sensor, and then detect X-ray road according to the capacitance signal
Side whether there is possible hazardous collision, so as to make up the X between x ray generator and x-ray detector in the prior art
Shortcoming of the light path without anti-collision facility realizes the Anti-bumping protection of x-ray detector.
Further, laminate is protected made of a saturating X-ray material by being set between sensing antenna and x-ray detector,
The sensing antenna plate can be protected, and by ambient noise interference, reduction parasitic capacitance makes sensor sensing range more concentrate, so as to
Improve the detection accuracy of sensing antenna plate.
In addition, the saturating X-ray case of the side of X-ray signal is received by using X-ray detecting plate to realize sensing antenna plate, no
Existing resource can be only made full use of, without adding more additional assemblies, and no need to increase equipment volumes.And further
Ground can be also transformed the X-ray case so that the sensing antenna plate includes mutiple antennas, so as to increase detection model
It encloses, realizes the detection of 3D ranges.
Finally, the proximity sensor in the embodiment of the present invention compares the sounding such as other sonacs, infrared sensor hair
The sensor of light will not generate extra interference, and cost is relatively low to operating personnel.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (12)
1. a kind of proximity sensor (11), applied to x-ray detector (2), which is characterized in that including：
One sensing antenna plate (111), is made of saturating X-ray material, and receives the one of X-ray signal positioned at the x-ray detector (2)
Side, for sensing the capacitance signal in search coverage；With
One analog-to-digital conversion module (113) is electrically connected with the sensing antenna plate (111), for by the capacitance signal by mould
Analog quantity is converted to digital capacitance value.
2. proximity sensor according to claim 1, which is characterized in that further comprise：One protection laminate (112), is adopted
It is made of saturating X-ray material, is electrically connected with the analog-to-digital conversion module (113), and positioned at the sensing antenna plate (111) and institute
Between stating x-ray detector (2), for protecting the sensing antenna plate (111) by ambient noise interference.
3. proximity sensor according to claim 1 or 2, which is characterized in that the sensing antenna plate (111) is the X
Optical detector (2) receives the case of the side of X-ray signal.
4. proximity sensor according to claim 1 or 2, which is characterized in that the sensing antenna plate (111) is using carbon fibre
Dimension material is made.
5. proximity sensor according to any one of claim 1 to 4, which is characterized in that the sensing antenna plate (111)
Including at least one sensing antenna.
6. proximity sensor according to claim 5, which is characterized in that the sensing antenna plate (111) is with plural number
The saturating X-ray plate of material of a annular, square or polygon engraved structure.
7. a kind of x-ray detector anticollision device, collision-prevention device, which is characterized in that including：One control module and just like in claim 1 to 6 appoint
Proximity sensor (11) described in one；
The control module (12) is for according between the digital capacitance value and predetermined capacitance and target range
Correspondence determine target range value, and the target range value and an anticollision threshold value set are compared, according to than
Relatively result controls corresponding motor.
8. x-ray detector anticollision device, collision-prevention device according to claim 7, which is characterized in that the control module (12) is by described in
Target range value is compared with the first anticollision threshold value, when the target range value is more than the first anticollision threshold value, control
The motor that the x-ray detector (2) moves is driven to perform back operation.
9. x-ray detector anticollision device, collision-prevention device according to claim 8, which is characterized in that the control module (12) is further
For when the target range value is more than the first anticollision threshold value, the target range value and the second anticollision threshold value to be carried out
Compare, when the target range value is more than the second anticollision threshold value, control drives X-ray machine belonging to the x-ray detector (2)
C arms movement motor stop driving.
10. a kind of x-ray detector avoiding collision, which is characterized in that approached using as according to any one of claims 1 to 6
Capacitance signal in sensor sensing search coverage, and the capacitance signal is converted into digital capacitance value by analog quantity；
According to the correspondence between the digital capacitance value and predetermined capacitance and target range, determine target away from
From value；
The target range value with a given threshold is compared, according to comparison result, corresponding motor is controlled.
11. x-ray detector avoiding collision according to claim 10, which is characterized in that described by target range value and one
The anticollision threshold value of setting is compared, and according to comparison result, corresponding motor is controlled, including：
The target range value and the first anticollision threshold value are compared, are more than the first anticollision threshold in the target range value
During value, control drives the motor of the x-ray detector movement to perform back operation.
12. x-ray detector avoiding collision according to claim 11, which is characterized in that be more than in the target range value
During the first anticollision threshold value, further comprise：
The target range value and the second anticollision threshold value are compared, are more than the second anticollision threshold in the target range value
During value, control drives the motor of the C arms movement of the affiliated X-ray machine of x-ray detector to stop driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169147.9A CN108201448A (en) | 2016-12-16 | 2016-12-16 | X-ray detector anticollision device, collision-prevention device, method and its proximity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169147.9A CN108201448A (en) | 2016-12-16 | 2016-12-16 | X-ray detector anticollision device, collision-prevention device, method and its proximity sensor |
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| Publication Number | Publication Date |
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| CN108201448A true CN108201448A (en) | 2018-06-26 |
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ID=62602673
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611169147.9A Pending CN108201448A (en) | 2016-12-16 | 2016-12-16 | X-ray detector anticollision device, collision-prevention device, method and its proximity sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110772273A (en) * | 2018-07-26 | 2020-02-11 | 台达电子工业股份有限公司 | Radiography system with anti-collision mechanism of bearing bed and anti-collision method thereof |
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| CN1969752A (en) * | 2005-11-23 | 2007-05-30 | 北京东方逸腾数码医疗设备技术有限公司 | Non-contact anti-collision device used for medical X-ray equipment |
| CN104983438A (en) * | 2006-11-20 | 2015-10-21 | 皇家飞利浦电子股份有限公司 | Detector head proximity sensing and collision avoidance apparatuses and methods |
| CN206499476U (en) * | 2016-11-16 | 2017-09-19 | 乐普（北京）医疗装备有限公司 | A kind of non-contact anti-collision device |
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2016
- 2016-12-16 CN CN201611169147.9A patent/CN108201448A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1969752A (en) * | 2005-11-23 | 2007-05-30 | 北京东方逸腾数码医疗设备技术有限公司 | Non-contact anti-collision device used for medical X-ray equipment |
| CN104983438A (en) * | 2006-11-20 | 2015-10-21 | 皇家飞利浦电子股份有限公司 | Detector head proximity sensing and collision avoidance apparatuses and methods |
| CN206499476U (en) * | 2016-11-16 | 2017-09-19 | 乐普（北京）医疗装备有限公司 | A kind of non-contact anti-collision device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110772273A (en) * | 2018-07-26 | 2020-02-11 | 台达电子工业股份有限公司 | Radiography system with anti-collision mechanism of bearing bed and anti-collision method thereof |
| CN110772273B (en) * | 2018-07-26 | 2023-10-17 | 台达电子工业股份有限公司 | Contrast system with bearing bed anti-collision mechanism and anti-collision method thereof |
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