CN206214113U - A kind of x-ray collimator for increasing C arm machine for shadow - Google Patents
A kind of x-ray collimator for increasing C arm machine for shadow Download PDFInfo
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- CN206214113U CN206214113U CN201620859147.0U CN201620859147U CN206214113U CN 206214113 U CN206214113 U CN 206214113U CN 201620859147 U CN201620859147 U CN 201620859147U CN 206214113 U CN206214113 U CN 206214113U
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Abstract
A kind of x-ray collimator for increasing C arm machine for shadow, belongs to technical field of medical instruments.It is characterized in that：New iris lead door（1）The port of export in x-ray collimator, 8 blade lead door（8）Arrival end in x-ray collimator, the two is overlapped places and lead door and window mouthful center superposition, by connecting rod by new iris lead door（1）Folding pass to 8 blade lead door（8）, this two-layer lead door linkage is opened or is reduced simultaneously simultaneously, in moving process, new iris lead door（1）With 8 blade lead door（8）Opening size ratio be 2：1, realize new iris lead door（1）Final radiation field size figure, 8 blade lead door are provided（8）The purpose wild for cutting unwanted radiation；Circumgyration incision lead door（7）Positioned at new iris lead door（1）With 8 blade lead door（8）Centre, by motor B（2）With motor C（3）Its rotation and radiation field size is controlled to cut.Its advantage is：The radiation of spuious, unnecessary ray can to greatest extent be reduced.
Description
Technical field
The invention belongs to technical field of medical instruments.
Background technology
The x-ray collimator primary clustering that current shadow increases used by C arm machine is iris lead door and circumgyration incision lead door, such as Fig. 1
It is shown.
Wherein mostly important, the range of exposures for controlling X-ray of iris lead door, if iris lead door is general by dry plate spiral
Blade is formed by stacking, as shown in Fig. 2 these helical blades have blocking effect to X-ray, therefore patient and shadow increasing are not only blocked
Partial illumination, so as to avoid the over-radiation to the tissue outside interested；Generally, Men Youyi motor control of iris lead
System, as shown in figure 3, when motor is rotated, motor gear drives the rotation of iris lead front tooth wheel, all helical blades are clockwise or inverse
Hour hands are rotated, and the purpose of radiation window is zoomed in or out so as to reach.
But above-mentioned described x-ray collimator design has two：One is that iris lead gate flap piece is relatively thin, is being obtained
When obtaining circular radiation open country open country, only iris lead door works, and under KV high, mA photography conditions high, there is excessive leakage rediation；Two
It is that, in the case where being photographed using small launched field, the radiation field size projected from bulb mouthful is still wild greatest irradiation, is made inside collimater
Into substantial amounts of scattered rays, excessive leakage rediation and scattered rays can cause radiation injury to patient and doctor, and influence whether figure
As quality.
The content of the invention
It is an object of the invention to provide the x-ray collimator that a kind of shadow increases C arm machine, existing x-ray collimator is solved
In excess radiation problem.
The technical scheme is that：It is a kind of for shadow increase C arm machine x-ray collimator, by new iris lead door, motor B,
Motor C, upper connecting rod, motor A, lower link, circumgyration incision lead door, 8 blade lead door composition, it is characterised in that：New iris lead door by
Motor A controls folding, while motor A drives upper connecting rod rotation, upper connecting rod drives the equidirectional rotation of lower link, and lower link drives 8
The door folding of blade lead；Circumgyration incision lead door is driven by motor B and motor C, when motor B is rotated, is occurred one and is zoomed in or out
Parallel radiation window, when motor B and motor C is rotated simultaneously, there is parallel radiation window clockwise or counterclockwise.
The described new iris lead port of export of the door in x-ray collimator, 8 blade lead door entering in x-ray collimator
Mouth end, centre position of the circumgyration incision lead door in x-ray collimator, three overlaps and places and lead door and window mouth center superposition.
Motor A controls the folding of new iris lead door, while drive upper connecting rod and lower link to rotate, while driving 8 blade lead
Door folding, realizes this two-layer lead door linkage, i.e., open simultaneously or reduce simultaneously, in moving process, new iris lead door and 8 blades
The opening size ratio of lead door is 2：1, the ratio is equal to new iris lead door to the distance and 8 blade lead door to bulb of bulb focus
The distance ratio of focus, realizes that new iris lead door provides final radiation field size figure, and 8 blade lead door is used for cutting unwanted radiation open country
Purpose.
8 blade lead door（8）It is that, by 4 one group, totally 2 groups of lead leaves are superimposed to be formed up and down, 8 blades constitute 18 side shape window
Mouthful, window zoom is controlled by fluted disc, fluted disc is driven by lower link.
The beneficial effects of the invention are as follows：This programme can the size of radiation field size will be unnecessary according to needed for when ray goes out bulb mouthful
Alpha ray shield fall, it is not entered in beam-defining clipper, the radiation of spuious, unnecessary ray is reduced to greatest extent.
Brief description of the drawings
Fig. 1 is the currently used x-ray collimator schematic diagram for increasing C arm machine for shadow.
Fig. 2 is the iris lead door schematic diagram of the x-ray collimator that currently used shadow increases C arm machine.
Fig. 3 is the iris lead gate control schematic diagram of the x-ray collimator that currently used shadow increases C arm machine.
Fig. 4 is a kind of x-ray collimator schematic diagram for increasing C arm machine for shadow.
Fig. 5 is a kind of x-ray collimator schematic diagram for increasing C arm machine for shadow.
Fig. 6 is a kind of new iris lead door schematic diagram of x-ray collimator of the x-ray collimator for increasing C arm machine for shadow.
Fig. 7 is a kind of 8 blade lead door schematic diagram of x-ray collimator of the x-ray collimator for increasing C arm machine for shadow.
In Fig. 4：1st, new iris lead door, 2, motor B, 3, motor C, 4, upper connecting rod, 5, motor A, 6, lower link, 7, rotary cutting
Cut lead door, 8,8 blade lead door.
Specific embodiment
Referring to the drawings 4,5,6, a kind of x-ray collimator for increasing C arm machine for shadow, by new iris lead door（1）, motor B
（2）, motor C（3）, upper connecting rod（4）, motor A（5）, lower link（6）, circumgyration incision lead door（7）, 8 blade lead door（8）Composition, its
It is characterised by：New iris lead door（1）By motor A（5）Control folding, while motor A（5）Drive upper connecting rod（4）Rotation, upper connecting rod
（4）Drive lower link（6）Equidirectional rotation, lower link（6）Drive 8 blade lead door（8）Folding；Circumgyration incision lead door（7）By electricity
Machine B（2）With motor C（3）Drive, as motor B（2）During rotation, there is a parallel radiation window for zooming in or out, work as motor
B（2）With motor C（3）When rotating simultaneously, there is parallel radiation window clockwise or counterclockwise.
Described new iris lead door（1）The port of export in x-ray collimator, 8 blade lead door（8）In X-ray collimation
The arrival end of device, circumgyration incision lead door（7）Centre position in x-ray collimator, three overlaps and places and in lead door and window mouthful
The heart overlaps.
Motor A（5）Control new iris lead door（1）Folding, while drive upper connecting rod（4）And lower link（6）Rotate, while
Drive 8 blade lead door（8）Folding, realizes this two-layer lead door linkage, i.e., open simultaneously or reduce simultaneously, in moving process, newly
Iris lead door（1）With 8 blade lead door（8）Opening size ratio be 2：1, the ratio is equal to new iris lead door（1）It is burnt to bulb
The distance of point and 8 blade lead door（8）To the distance ratio of bulb focus, new iris lead door is realized（1）Final radiation field size figure is provided
Shape, 8 blade lead door（8）The purpose wild for cutting unwanted radiation.
The 8 blade lead door（8）It is that, by 4 one group, totally 2 groups of lead leaves are superimposed to be formed up and down, 8 blades constitute 18 side shape
Window, window zoom is controlled by fluted disc, and fluted disc is driven by lower link.
Its advantage is：This programme can when ray goes out bulb mouthful according to needed for the size of radiation field size by unnecessary alpha ray shield
Fall, it is not entered in beam-defining clipper, the radiation of spuious, unnecessary ray is reduced to greatest extent.
Claims (4)
1. it is a kind of for shadow increase C arm machine x-ray collimator, by new iris lead door（1）, motor B（2）, motor C（3）, upper connecting rod
（4）, motor A（5）, lower link（6）, circumgyration incision lead door（7）, 8 blade lead door（8）Composition,
It is characterized in that：New iris lead door（1）By motor A（5）Control folding, while motor A（5）Drive upper connecting rod（4）Rotation,
Upper connecting rod（4）Drive lower link（6）Equidirectional rotation, lower link（6）Drive 8 blade lead door（8）Folding；Circumgyration incision lead door
（7）By motor B（2）With motor C（3）Drive, as motor B（2）During rotation, there is a parallel radiation window for zooming in or out
Mouthful, as motor B（2）With motor C（3）When rotating simultaneously, there is parallel radiation window clockwise or counterclockwise.
2. it is according to claim 1 it is a kind of for shadow increase C arm machine x-ray collimator, it is characterised in that：Described new rainbow
Film lead door（1）The port of export in x-ray collimator, 8 blade lead door（8）Arrival end in x-ray collimator, circumgyration incision
Lead door（7）Centre position in x-ray collimator, three overlaps and places and lead door and window mouthful center superposition.
3. it is according to claim 1 it is a kind of for shadow increase C arm machine x-ray collimator, it is characterised in that：Motor A（5）Control
Make new iris lead door（1）Folding, while drive upper connecting rod（4）And lower link（6）Rotate, while driving 8 blade lead door（8）Open
Close, realize this two-layer lead door linkage, i.e., open simultaneously or reduce simultaneously, in moving process, new iris lead door（1）With 8 blades
Lead door（8）Opening size ratio be 2：1, the ratio is equal to new iris lead door（1）To the distance and 8 blade lead door of bulb focus
（8）To the distance ratio of bulb focus, new iris lead door is realized（1）Final radiation field size figure, 8 blade lead door are provided（8）It is used for
Cut the wild purpose of unwanted radiation.
4. it is according to claim 1 it is a kind of for shadow increase C arm machine x-ray collimator, it is characterised in that：8 blade
Lead door（8）It is that, by 4 one group, totally 2 groups of lead leaves are superimposed to be formed up and down, 8 blades constitute 18 side shape window, and window is controlled by fluted disc
Mouth zoom, fluted disc is driven by lower link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859147.0U CN206214113U (en) | 2016-08-10 | 2016-08-10 | A kind of x-ray collimator for increasing C arm machine for shadow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859147.0U CN206214113U (en) | 2016-08-10 | 2016-08-10 | A kind of x-ray collimator for increasing C arm machine for shadow |
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| CN206214113U true CN206214113U (en) | 2017-06-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107714077A (en) * | 2016-08-10 | 2018-02-23 | 南京普爱医疗设备股份有限公司 | A kind of x-ray collimator for increasing C arm machine for shadow |
-
2016
- 2016-08-10 CN CN201620859147.0U patent/CN206214113U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107714077A (en) * | 2016-08-10 | 2018-02-23 | 南京普爱医疗设备股份有限公司 | A kind of x-ray collimator for increasing C arm machine for shadow |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 211100 No.97 and 99, Wangxi Road, Jiangning District, Nanjing, Jiangsu Province Patentee after: NANJING PERLOVE MEDICAL EQUIPMENT Co.,Ltd. Address before: 211112 No. 168 Kaiyuan Road, Jiangning District, Jiangsu, Nanjing Patentee before: NANJING PERLOVE MEDICAL EQUIPMENT Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |