CN1242976A - Computer tomoscanning device - Google Patents
Computer tomoscanning device Download PDFInfo
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- CN1242976A CN1242976A CN98116829A CN98116829A CN1242976A CN 1242976 A CN1242976 A CN 1242976A CN 98116829 A CN98116829 A CN 98116829A CN 98116829 A CN98116829 A CN 98116829A CN 1242976 A CN1242976 A CN 1242976A
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- cathode
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- spool
- head hoop
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Abstract
The present invention relates to a computer tomographic scanning equipment formed of the components of X-ray tube, detector and collimator, etc.. The X-ray tube adopts ring-shaped structure, its interior includes ring anode, cathode head ring and driver, etc., said ring anode is equipped with ring focal target, on the cathode head ring some cathode heads are distributed, said driver can be used for driving cathode head ring to make it rotate, so that it uses several cathode heads to emit several electron beams to produce several beans of X-ray, at the same time these beams of X-ray are rotated around the scanned body, therefore it can implement CT scanning operation in a short time.
Description
The present invention relates to a kind of computer tomoscanning device, it is a kind ofly with the x line object to be carried out tomoscan, carries out data acquisition and processing (DAP) by computer, finally obtains the image documentation equipment of each layer images of this object.
1972, first can be applicable to clinical cranium brain x line CT scan device (being called for short the CT machine) and succeeds in developing, it scans checked object thin layer with form of a stroke or a combination of strokes x wire harness, measure through the x line strength behind the human body by detector, through the electronic computer processed, rebuild the cross fault image of this check point again.The appearance of this product, it is the important breakthrough in the diagnostic imaging field, the CT technology constantly obtains the new development that attracts people's attention afterwards, develop into the 5th present generation CT from first generation CT, wherein the third generation and the 4th generation CT compare with first generation CT on picture quality and scanning speed, the improvement of matter is all arranged, and the scanning speed of the 5th generation CT far faster than other each for CT.
Adopting the CT of prior art, is the employed third generation of most of hospitals and the 4th generation CT machine, and its scanning speed is " a second level ", though can satisfy the requirement of most of clinical diagnosises, high not enough to the cardiac work up scanning speed.The present device of existing supper-fast CT scan, promptly the 5th generation the CT scan device.Realize supper-fast CT scan for reaching, the structure of existing supper-fast CT scan device adopts supper-fast CT scan device of the cardiovascular of so-called bell x spool and dynamic spatial reconstructure system, the supper-fast CT scan device of cardiovascular adopts the method for electron focusing and deflection to make electron gun electrons emitted Shu Xuanzhuan, and bombard several burnt scoring rings, thereby form the x line source of rotation, it is a kind of all-electronin scanning system of having got rid of mechanical movement.The dynamic spatial reconstructure system adopts a plurality of x spools to rotate simultaneously or utilizes grid control method successively to each x spool scanning, produces the x wire harness of rotation.Be tens of milliseconds of magnitudes their sweep time, but these two kinds of CT scan devices is bulky, the structure relative complex, manufacturing cost is higher, and except that cardiac work up and movability patient, the spatial resolution of other internal organs image that is obtained and density resolution obviously not as good as high-grade third generation CT or the 4th generation the CT scan device.
The purpose of this invention is to provide a kind of clear picture, scanning speed is fast, and the computer tomoscanning device of low cost of manufacture.
Technical solution of the present invention is: a kind of computer tomoscanning device of being made up of parts such as x spool, detector, collimators, the x spool adopts loop configuration, is made up of cathode head hoop, driver and circular anode etc. in the x spool.Dispose ring-shaped target on the circular anode, several cathode taps distribute on the cathode head hoop, cathode head hoop by driver drives around the scanned object fast rotational, be on the cathode head hoop a plurality of cathode taps of diverse location and launch corresponding a plurality of electron beam, bombard ring-shaped target simultaneously, produce the different a plurality of x wire harness in azimuth, thereby can finish CT scan at short notice.
Because x spool of the present invention has adopted loop configuration, is convenient to equip circular anode, thereby disposes ring-shaped target on this anode, be beneficial to the multi beam cathode electronics and bombard burnt target simultaneously, produce multi beam x line.Owing to adopt the cathode head hoop of a plurality of cathode taps can be installed, thereby realized being in the filament while emission electron on a plurality of cathode taps on the diverse location, can produce the fan-shaped x line of the different multi beam in azimuth simultaneously, improved data acquisition rate greatly, thereby accelerated scanning speed, thereby both can obtain spatial resolution and density resolution and the third generation and the suitable image of the 4th generation CT, can reach the level suitable again with the scanning speed of the 5th generation CT.
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic cross-section that annular x spool is parallel to central shaft.
Fig. 2 is the schematic cross-section of loop wire x spool perpendicular to central shaft.
X computer on line tomoscanning device of the present invention is made up of parts such as x spool 1, detector 18, collimators 5, and x spool 1 adopts loop configuration, and circular anode 4, cathode head hoop 14, the driver 17 of ring-shaped target arranged on it.In a side of x spool 1 circular anode 4 is installed, it is drawn post 3 by several anodes and is fixed in the x spool, ring-shaped target 6 is arranged on the inclined-plane of circular anode, the opposite side of x spool is equipped with cathode taps slip ring (11,12,13) and cathode head hoop 14, the cathode taps slip ring is fixed on the inwall of x conduit seal successively, wherein cathode taps slip ring (11,12) is distinguished damascene conductive electrode (15,16), one end of electrode keeps well contacting with the filament electrode (9,10) of cathode taps filament 8 respectively, and the other end causes on the x conduit seal 2.Several cathode taps 7 of stationary distribution on the cathode head hoop, driver of the present invention can adopt multiple mode, is contained in the x spool as driver, also can adopt the anode drive mode of rotating anode x spool etc.
After a preferred embodiment of computer tomoscanning device of the present invention being made clearly description; should be appreciated that; the invention is not restricted to the foregoing description; those skilled in the art can also make various changes and modifications on this basis, but these changes and improvements are all in the scope of protection of present invention.
Claims (5)
1, a kind of computer tomoscanning device, form by x spool (1), detector (18), collimator parts such as (5), it is characterized in that: x spool (1) adopts loop configuration, has cathode head hoop (14), driver (17) and circular anode parts such as (4) to form in the x spool.
2, a kind of computer tomoscanning device according to claim 1 is characterized in that: circular anode (4) is drawn post (3) by several anodes and is fixed in the x spool, and ring-shaped target (6) is arranged on it.
3, a kind of computer tomoscanning device according to claim 1 is characterized in that: cathode head hoop is installed in the inwall of x conduit seal by cathode taps slip ring (11,12,13), rotates by the driver drives cathode head hoop.
4, a kind of computer tomoscanning device according to claim 3 is characterized in that: cathode head hoop (14) has been gone up stationary distribution several cathode taps (7).
5, according to claim 3 or 4 described a kind of computer tomoscanning devices, it is characterized in that: all be equipped with two filament electrodes (9,10) of mutually insulated on each cathode taps, two electrodes contact with cathode taps slip ring (11,12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98116829A CN1242976A (en) | 1998-07-24 | 1998-07-24 | Computer tomoscanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98116829A CN1242976A (en) | 1998-07-24 | 1998-07-24 | Computer tomoscanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1242976A true CN1242976A (en) | 2000-02-02 |
Family
ID=5225233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98116829A Pending CN1242976A (en) | 1998-07-24 | 1998-07-24 | Computer tomoscanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1242976A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101597A1 (en) * | 2012-12-31 | 2014-07-03 | 清华大学 | Ct device and method thereof |
| CN103908281A (en) * | 2012-12-31 | 2014-07-09 | 清华大学 | Ct device and method thereof |
| CN105092612A (en) * | 2014-05-06 | 2015-11-25 | 阿斯特菲公司 | Computed tomography system for cargo and transported containers |
| CN106873030A (en) * | 2017-02-07 | 2017-06-20 | 中国石油天然气股份有限公司 | Method and device for determining fault plugging performance |
| CN110443868A (en) * | 2019-08-02 | 2019-11-12 | 上海联影医疗科技有限公司 | PET image acquisition methods, device, computer equipment and storage medium |
-
1998
- 1998-07-24 CN CN98116829A patent/CN1242976A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101597A1 (en) * | 2012-12-31 | 2014-07-03 | 清华大学 | Ct device and method thereof |
| CN103908281A (en) * | 2012-12-31 | 2014-07-09 | 清华大学 | Ct device and method thereof |
| US9615438B2 (en) | 2012-12-31 | 2017-04-04 | Nuctech Company Limited | CT devices and methods thereof |
| CN105092612A (en) * | 2014-05-06 | 2015-11-25 | 阿斯特菲公司 | Computed tomography system for cargo and transported containers |
| US9865066B2 (en) | 2014-05-06 | 2018-01-09 | Astrophysics Inc. | Computed tomography system for cargo and transported containers |
| CN106873030A (en) * | 2017-02-07 | 2017-06-20 | 中国石油天然气股份有限公司 | Method and device for determining fault plugging performance |
| CN110443868A (en) * | 2019-08-02 | 2019-11-12 | 上海联影医疗科技有限公司 | PET image acquisition methods, device, computer equipment and storage medium |
| CN110443868B (en) * | 2019-08-02 | 2023-09-26 | 上海联影医疗科技股份有限公司 | PET image acquisition method, PET image acquisition device, computer equipment and storage medium |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |