CN108744318A - A kind of helical form short distance nucleic radiotheraphy device and particle load assembly automatically - Google Patents
A kind of helical form short distance nucleic radiotheraphy device and particle load assembly automatically Download PDFInfo
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- CN108744318A CN108744318A CN201810692595.XA CN201810692595A CN108744318A CN 108744318 A CN108744318 A CN 108744318A CN 201810692595 A CN201810692595 A CN 201810692595A CN 108744318 A CN108744318 A CN 108744318A
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- centering block
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- 239000002245 particle Substances 0.000 title claims abstract description 313
- 230000002285 radioactive effect Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims description 11
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 210000003445 biliary tract Anatomy 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 14
- 238000001959 radiotherapy Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 210000000941 bile Anatomy 0.000 abstract description 8
- 208000006990 cholangiocarcinoma Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 210000003128 head Anatomy 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 208000020790 biliary tract neoplasm Diseases 0.000 description 2
- 238000002725 brachytherapy Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010147 laser engraving Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- PLIXOQYCVZTQMW-UHFFFAOYSA-N 4,4,5-trifluoro-5-[4,5,5-trifluoro-2,2-bis(trifluoromethyl)-1,3-dioxolan-4-yl]-2,2-bis(trifluoromethyl)-1,3-dioxolane Chemical compound O1C(C(F)(F)F)(C(F)(F)F)OC(F)(F)C1(F)C1(F)C(F)(F)OC(C(F)(F)F)(C(F)(F)F)O1 PLIXOQYCVZTQMW-UHFFFAOYSA-N 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- 238000007466 Percutaneous biliary drainage Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000000013 bile duct Anatomy 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 238000013189 cholangiography Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 210000000720 eyelash Anatomy 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009116 palliative therapy Methods 0.000 description 1
- 238000007458 percutaneous transhepatic cholangiography Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1002—Intraluminal radiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1007—Arrangements or means for the introduction of sources into the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1014—Intracavitary radiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0067—Means for introducing or releasing pharmaceutical products into the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N2005/1019—Sources therefor
- A61N2005/1024—Seeds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1092—Details
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Pathology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The present invention relates to medical instruments fields, and in particular to a kind of helical form short distance nucleic radiotheraphy device and particle load assembly automatically.The device includes：Cylindrical holder, drainage tube；Spiral first groove is offered on holder, drainage tube is mounted in the first groove in the shape of a spiral, several radioactive particle bodies are equipped in drainage tube.Being fixed on holder periphery and can be placed in particle progress radiotherapy to biliary tract but also expand biliary tract drainage tube enables bile normally to circulate, so that particle chain has the function of retractility, certain wriggling and self centering as holder so that particle chain, which can be stablized, is placed in designated position.Particle load automatically in assembly fan-shaped centering block swing make when rotation the particle body of opening position by particle body pushing in device release and particle casket in particle body to be loaded slide the process being clamped to opening position and move in circles progress so that particle body during fan-shaped centering block is swung can ceaselessly into particle with send particle.
Description
Technical field
The present invention relates to medical instruments fields, in particular to a kind of helical form short distance nucleic radiotheraphy device and grain
Sub automatic loading assembly.
Background technology
The incidence of cholangiocarcinoma is in rising trend, has been developed to middle and advanced stage when medical more, heavier stalk has often occurred
Resistive jaundice, systemic conditions are poor, and dysfunction of liver is apparent, and majority of cases operation excision acquires a certain degree of difficulty, and prognosis mala.It is right
In the cholangiocarcinoma for being unsuitable for operation excision, the general palliative therapy using bile duct decompression.Currently used non-operative treatment is
Using percutaneous transhepatic cholangiography and drainage (percutaneous transhepatic biliary drainage, PTBD), percutaneously
It is placed in through transhepatic cholangiography inner support or is driven in the wrong direction through duodenofiberscope by scope and be placed in biliary tract rack, to release obstruction of biliary tract, draw
It flows bile, improve life quality, and the methods of intravenous chemotherapy, extracorporeal six field radiation are because of the little and less use of its curative effect.But due to
The growth of tumour itself is not under control, and various biliary tract rack drainages are easy to block because tumour is constantly grown, institute
The effect of to put biliary tract rack is of short duration, it is difficult to improve long-dated survival quality.At present still without evening in preferably controlling
The method of phase cholangiocarcinoma growth, cholangiocarcinoma is one of the problem of surgical intervention always.
When caused malignant change can not go operation excision, clinically usually solved using interventional technique.Intervene skill
Art includes percutaneous puncture biliary Drainage (PTCD) and stent endoprosthesis etc..However, since lesion continues to progress from, holder usually exists
Occlusion in short time, and common biliary stent drainage effect also can gradually be deteriorated.To extend the unobstructed time of biliary tract, clinically
It is placed in using I125 radioactive particle, implements brachytherapy.In the prior art, I125 particle can be built by drainage tube
Item row brachytherapy, still, which is entirely within due to particle item in drainage tube, hence it is evident that influences the drainage of bile.Institute
With finding one and being placed in particle progress radiotherapy but also expand the method that biliary tract enables bile normally to circulate seems urgent
In the eyebrows and eyelashes.
Invention content
To solve the above problems, can be placed in particle progress radiotherapy the purpose of the present invention is to provide one kind but also expand courage
Road enables the helical form short distance nucleic radiotheraphy device that bile normally circulates.
The present invention also aims to provide a kind of particle applied in above-mentioned helical form short distance nucleic radiotheraphy device from
It is dynamic to load assembly.
The purpose of the present invention is what is be achieved through the following technical solutions：
The present invention provides a kind of helical form short distance nucleic radiotheraphy devices, including：Cylindrical holder, drainage tube；Holder
On offer spiral first groove, drainage tube is mounted in the first groove in the shape of a spiral, is equipped in drainage tube several
A radioactive particle body.
Further, pass through the first spring or folded spring between two adjacent radioactive particle bodies in several radioactive particle bodies
It is attached.
Further, drainage tube, the first groove quantity be one and the two shape matches, drainage tube includes spiral shell
Coil section and the straight pipe being connected to pigtail, pigtail are connected to after detour spiral with straight pipe and at an acute angle on holder
Setting；The connectivity part of pigtail and straight pipe is provided with valve, separates straight pipe without outer force effect hypovalve film, outside
Valve covers the nozzle of pigtail under force effect.
Further, the section of the first groove is in arc-shaped, and the upper end of the first groove is higher than the center of circle of drainage tube section, the
It is provided on one groove and carries out clinging fixed bounding point with drainage tube.
Further, drainage tube, the first groove quantity be multiple and the two shape matches, multiple drainage tubes are uniform
It is spaced apart；The section of first groove is in arc-shaped, and the upper end of the first groove is higher than the center of circle of drainage tube section, is located on holder
The top and lower part of first groove are correspondingly arranged on overlay film and lower overlay film, and drainage tube is coated between overlay film and lower overlay film.
Further, particle body includes spheroidal particle or cylindrical particle.
The present invention separately provides a kind of particle using above-mentioned helical form short distance nucleic radiotheraphy device and loads assembly automatically,
Particle loads assembly automatically：Fixed column, particle pipe, particle casket, particle body feed device, particle body pushing in device；It is fixed
Spiral second groove is offered on column, particle pipe is mounted in the second groove in the shape of a spiral；
Particle body feed device includes：Fan-shaped centering block, first motor, clamping element；Several radioactivity grains are mounted in particle casket
Daughter, the lower part of particle casket offer particle body and fall opening, the circle of the fixed setting of particle casket and its underpart closely fan-shaped centering block
Arc surface one end of cambered surface, fan-shaped centering block offers gap, and clamping element is arranged on the side that fan-shaped centering block has gap, gap
Grasping part being cooperatively formed with clamping element, particle body being clamped, first motor is fixedly installed and is driven with fan-shaped centering block be connected by power and fanned
Shape centering block is swung between first position and the second position；For fan-shaped centering block at first position, grasping part is under quasi particle body
Opening is fallen, fan-shaped centering block is at the second position, the nozzle of particle body in grasping part to quasi particle pipe；
Particle body pushing in device includes：Guide sleeve, push rod, guide plate, the first slide post, first connecting rod, first fix disk, the second sliding
Column, second connecting rod, second fix disk, the second motor；The first straight slot is provided in the axial direction on guide sleeve, push rod is installed in guide sleeve；
One end of guide plate is connect across the first straight slot with push rod, and the other end is connect with the first slide post；Second is offered on first connecting rod
Straight slot and third straight slot, the length of third straight slot are more than the length of the second straight slot, and the first fixation disk, the second fixation disk fixation are set
It sets, the end on first connecting rod far from the second straight slot is fixed disk with first and is hinged, and the first slide post is slidably mounted on the second straight slot
Interior, the second slide post is slidably mounted in third straight slot, and the setting of the second motor is fixed second on disk；One end of second connecting rod with
Second slide post connects, and the other end be connected by power of the second motor and second connecting rod drives second connecting rod to be swung；Sector pendulum
For block at the second position, push rod is directed at the particle body in grasping part.
Further, clamping element includes：Two articulated slabs, clamping plates；Two articulated slabs, which are symmetricly set on fan-shaped centering block, to be had
On the side of gap, clamping plate is hinged between two articulated slabs, and fan-shaped centering block offers blind hole, blind hole on the side with gap
Second spring in compressive state is inside installed, one end of the end of second spring closely clamping plate, the other end of clamping plate with slit
Mouth cooperatively forms grasping part.
Further, it further includes intermittent tumbler that particle loads assembly automatically, and intermittent tumbler includes：It is fixed
Chuck, third fix disk, third connecting rod, fourth link, third slide post, the 5th connecting rod, the 4th fixation disk, third motor；Grain
Son is managed, the quantity of the second groove is multiple, and multiple particles pipe is evenly spaced on；Fixed column setting is in fixed chuck one side
On, multiple guide grooves identical with particle pipe quantity are offered on fixed chuck another side, multiple guide grooves are uniformly arranged and solid
The circle centre position for determining chuck crosses；Third fixes disk, the 4th fixation disk fixed setting, and the length of fourth link is more than fixed chuck
Diameter, third slide post are arranged in one end of fourth link and are slidably mounted in a guide groove, the other end of fourth link and
One end of three-link is hinged；One end of 5th connecting rod fixes that disk is hinged with the 4th, the centre position of the other end and fourth link into
Row is hinged；Third motor, which is arranged, to be fixed on disk in third and drives third connecting rod to carry out with the other end be connected by power of third connecting rod
Rotation so that the oval track of third slide post is moved then drives fixed chuck, fixed column to carry out interval successively
Property rotation.
Further, particle pipe, the second groove quantity be three, three guide grooves are uniformly arranged and in fixed chucks
Circle centre position crosses, and the oval track of third slide post is moved then drives fixed chuck, fixed column to carry out 120 successively
The intermittent rotation of degree；Particle body includes spheroidal particle or cylindrical particle.
The helical form short distance nucleic radiotheraphy device of the present invention, is fixed on holder by particle chain dependency structure such as drainage tube
Periphery, which can be placed in biliary tract particle progress radiotherapy but also expand biliary tract, enables bile normally to circulate, and particle chain is related
Structure is combined with holder and the characteristic of holder can be transferred on particle chain so that particle chain has flexible as holder
Property, certain wriggle and self centering function so that particle chain, which can be stablized, is placed in designated position.
The particle of the present invention loads assembly automatically, and fan-shaped centering block swing the particle body quilt for making opening position when rotation
Particle body pushing in device release and particle casket in particle body to be loaded slide to the clamped process of opening position move in circles into
Row so that particle body during fan-shaped centering block is swung can ceaselessly into particle with send particle, can more convenientlyly pair
Particle pipe is loaded, and realizes automatic loading, simple and convenient practicality.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the vertical view of helical form short distance nucleic radiotheraphy device first scheme embodiment of the present invention；
Fig. 2 is the front view of helical form short distance nucleic radiotheraphy device first scheme embodiment of the present invention；
Fig. 3 is the stereogram of helical form short distance nucleic radiotheraphy device first scheme embodiment of the present invention；
Fig. 4 is that corresponding diagram 1 starts to load the cutaway view of particle body；
Fig. 5 is the cutaway view after the completion of the loading particle body of corresponding diagram 1；
Fig. 6 is the stereogram of corresponding diagram 4；
Fig. 7 is the Local map of Fig. 4；
Fig. 8 is the Local map of Fig. 5；
Fig. 9 is the Local map of Fig. 6；
Figure 10 is the front view of helical form short distance nucleic radiotheraphy device alternative plan embodiment of the present invention；
Figure 11 is the stereogram of helical form short distance nucleic radiotheraphy device alternative plan embodiment of the present invention；
Figure 12 is the cutaway view of corresponding diagram 10；
Figure 13 is the structure chart of holder in helical form short distance nucleic radiotheraphy device alternative plan embodiment of the present invention；
Figure 14 is the sectional view of Figure 10；
Figure 15 is the structure of upper overlay film, lower overlay film in helical form short distance nucleic radiotheraphy device alternative plan embodiment of the present invention
Figure；
Figure 16 is that particle of the present invention loads a kind of structure chart of angle of assembly automatically；
Figure 17 is the structure chart that particle of the present invention loads assembly another kind angle automatically；
Figure 18 is that particle of the present invention loads particle body feed device and a kind of knot of angle of particle body pushing in device in assembly automatically
Composition；
Figure 19 is that particle of the present invention loads particle body feed device and particle body pushing in device another kind angle in assembly automatically
Structure chart；
Figure 20 is the sectional view that particle of the present invention loads particle body pushing in device in assembly automatically；
Wherein reference numeral is：1, holder；2, drainage tube；3, the first groove；4, the first spring；5, valve；6, upper overlay film；7, under
Overlay film；8, spheroidal particle；9, cylindrical particle；10, fixed column；11, particle pipe；12, particle casket；13, the second groove；14, it fans
Shape centering block；15, first motor；16, particle body, which falls, is open；17, gap；18, guide sleeve；19, push rod；20, guide plate；21, first
Slide post；22, first connecting rod；23, first disk is fixed；24, the second slide post；25, second connecting rod；26, second disk is fixed；27,
Second motor；28, the second straight slot；29, third straight slot；30, articulated slab；31, clamping plate；32, second spring；33, fixed chuck；
34, third fixes disk；35, third connecting rod；36, fourth link；37, third slide post；38, the 5th connecting rod；39, it the 4th fixes
Disk；40, guide groove；41, third motor.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
As shown in Fig. 1 to 15, a kind of helical form short distance nucleic radiotheraphy device of the embodiment of the present invention, including：In cylinder
Holder 1, the drainage tube 2 of shape；Spiral first groove 3 is offered on holder 1, drainage tube 2 is mounted on first in the shape of a spiral
In groove 3, several radioactive particle bodies are installed in drainage tube 2.
The helical form short distance nucleic radiotheraphy device of the present invention, is fixed on branch by particle chain dependency structure such as drainage tube 2
1 periphery of frame can be placed in biliary tract on particle and carry out radiotherapy but also expand biliary tract bile is normally circulated, and by particle chain
Dependency structure is combined with holder 1 and the characteristic of holder 1 can be transferred on particle chain so that particle chain has as holder 1
There are retractility, certain wriggling and self centering function so that particle chain, which can be stablized, is placed in designated position.
As in preferred technical solution, pass through in several radioactive particle bodies between two adjacent radioactive particle bodies
One spring 4 or folded spring are attached.
Spring or folded spring are connected between particle and particle so that there is elasticity of extension and front and back adjacent between particle chain
It will not collide between particle.The front end of initiating particle is connected with the rear end for terminating particle without particle chain spring or folded spring.
As in preferred technical solution, drainage tube 2, the first groove 3 quantity be one and the two shape matches,
This is first embodiment scheme, and referring to Fig. 1-9, drainage tube 2 includes pigtail and the straight pipe that is connected to pigtail, spiral shell
Coil section is connected to straight pipe after detour spiral on holder 1 and setting at an acute angle；The connectivity part of pigtail and straight pipe is set
It is equipped with valve 5, separates straight pipe without outer force effect hypovalve film 5, valve 5 is by the nozzle of pigtail under external force
It is covered.
Biliary tract rack 1 is in cylinder Weaving type or laser engraving hollow type, and material is Ultimum Ti silk, outside holder 1
It is wound with particle drainage tube 2 week, particle drainage tube 2 is wound in 1 periphery of holder, and particle drainage tube after spiral winding in the shape of a spiral
2 fore-end and end section carry out head and the tail by straight pipe and connect, and straight pipe part is in pigtail barrier zones from spiral shell
It goes around above coil section, is similar to overpass area, the portion that 2 front end area pigtail of particle drainage tube is connected with straight pipe
Divide and straight pipe is continued into forward end extension, extends to 1 front edge position of holder, holder 1 is in the winding contact of particle drainage tube 2
The structure of arc groove resigning is designed on the twine of the holder 1 of position, the section that twine is constituted is the groove and particle of circular arc
The periphery of drainage tube 2 coincide.
It is hollow centered on 2 inside of particle drainage tube, particle can be made to be entered in particle drainage tube 2 from front opening end,
And enter from straight pipe in particle drainage tube 2, then the position from the rear end of straight pipe with the smooth connection of pigtail is taken advantage of a situation
The pigtail for entering to particle drainage tube 2, to load 2 all effective coverages of particle drainage tube.Because before particle drainage tube 2
The pigtail at end be directed towards rear extreme direction and straight pipe carry out it is smooth be connected to, so the pigtail of front end connected region with open
It is acute angle between the straight pipe at mouth end（As shown in Fig. 4,5,7,8）, particle drainage tube 2 is in open end straight pipe and pigtail friendship
The region connect is fixedly connected with valve 5, when normally without outer force effect, the perpendicular state in fixed point of valve 5, by open end
Straight pipe separates（As shown in Fig. 5,8）So that the pigtail of drainage particle pipe 11 is connected to straight pipe, when particle is from opening
End is loaded into particle drainage tube 2, and the pushing of valve 5 is made the rotation of valve 5 become horizontality just from heeling condition by initiating particle
The 2 front end pigtail outlet of particle drainage tube is covered well so that initiating particle is smoothly entered from the open end of particle drainage tube 2
Then straight pipe part enters pigtail from particle pigtail entrance, finally arrive at the particle helix tube of pigtail
Section outlet port terminates particle and also enters to straight pipe part at this time, and the drainage tube 2 of open-ended area enters without particle, particle
It is present in pigtail and the straight pipe part between it, at this time because open end pushes valve 5 without particle, valve 5
Restore to normal condition, open end straight pipe is separated.Particle can particle drainage tube 2 pigtail and between straight tube
Circulation is carried out in the closed-loop that section is constituted.
As in preferred technical solution, the section of the first groove 3 is in arc-shaped, and the upper end of the first groove 3 is higher than drainage
The center of circle in 2 section of pipe is provided on the first groove 3 and carries out clinging fixed bounding point with drainage tube 2.
Wherein arc groove upper end is higher than the center of circle in 2 section of particle drainage tube so that particle drainage tube 2 is embedded in holder 1
Arc groove in be provided with bounding point on 1 twine of holder that is clamped fixation, while being contacted with particle drainage tube 2 and make itself and grain
Sub- drainage tube 2 clings fixation.
As in preferred technical solution, drainage tube 2, the first groove 3 quantity be multiple and the two shape matches,
Multiple drainage tubes 2 are evenly spaced on；The section of first groove 3 is in arc-shaped, and the upper end of the first groove 3 is cut higher than drainage tube 2
The center of circle in face is located at the top of the first groove 3 and lower part on holder 1 and is correspondingly arranged on overlay film 6 and lower overlay film 7, and drainage tube 2 wraps
It overlays between overlay film 6 and lower overlay film 7.
Alternative plan structure can also be used, referring to Figure 10-15, biliary tract rack 1 is engraved in cylinder Weaving type or laser engraving
Casement, 1 peripheral distribution of holder have the particle dependency structure of multi-thread wound spiral type, this prescription case to take the grain of three spiral windings
Subchain, on corresponding 1 position of holder of spiral particle chain, 1 twine of holder is designed with the structure of arc groove resigning, and twine is constituted
Section be that groove and the columned particle periphery of circular arc coincide, and arc groove upper end is higher than the center of circle in particle section, makes
Particle drainage tube 2 is embedded in the arc groove of holder 1 and is clamped fixation, on the spiral groove of 1 twine of holder fixation setting
It is equipped with lower overlay film 7, while particle chain outer side covering has upper overlay film 6, upper overlay film 6 to coordinate with lower overlay film 7 particle chain is fully wrapped around
Covering, the edge of upper overlay film 6 are fixed on 1 twine of holder, this scheme particle is cylindric, same between particle and particle
It is attached by spring or folded spring.
As in preferred technical solution, particle body includes spheroidal particle 8 or cylindrical particle 9, in first scheme
To be cylindrical particle 9 in spheroidal particle 8, alternative plan.
As shown in Figure 16 to 20, a kind of above-mentioned helical form short distance nucleic radiotheraphy device of application of another embodiment of the present invention
Particle load assembly automatically, particle loads assembly and includes automatically：Fixed column 10, particle pipe 11, particle casket 12, particle body feeding
Device, particle body pushing in device；Spiral second groove 13 is offered in fixed column 10, particle pipe 11 is installed in the shape of a spiral
In the second groove 13；
Particle body feed device includes：Fan-shaped centering block 14, first motor 15, clamping element；Several are mounted in particle casket 12 to put
Penetrating property particle body, the lower part of particle casket 12 offer particle body and fall opening 16, the fixed setting of particle casket 12 and its underpart is closely
Arc surface one end of the arc surface of fan-shaped centering block 14, fan-shaped centering block 14 offers gap 17, and clamping element is arranged in fan-shaped centering block 14
On side with gap 17, gap 17 cooperatively forms grasping part clamping particle body with clamping element, and the fixation of first motor 15 is set
It sets and drives fan-shaped centering block 14 to be swung between first position and the second position with 14 be connected by power of fan-shaped centering block；Fan-shaped centering block 14
At first position, grasping part is to quasi particle body whereabouts opening 16, and fan-shaped centering block 14 is at the second position, in grasping part
Nozzle of the particle body to quasi particle pipe 11；
Particle body pushing in device includes：Guide sleeve 18, push rod 19, guide plate 20, the first slide post 21, first connecting rod 22, first are fixed
Disk 23, the second slide post 24, second connecting rod 25, second fix disk 26, the second motor 27；It is provided in the axial direction with first on guide sleeve 18
Straight slot, push rod 19 are installed in guide sleeve 18；One end of guide plate 20 is connect across the first straight slot with push rod 19, and the other end and first is slided
Dynamic column 21 connects；The second straight slot 28 and third straight slot 29 are offered on first connecting rod 22, the length of third straight slot 29 is more than second
The length of straight slot 28, the first fixation disk 23, second are fixed disk 26 and are fixedly installed, far from the second straight slot 28 on first connecting rod 22
End is fixed disk 23 with first and is hinged, and the first slide post 21 is slidably mounted in the second straight slot 28, the second slide post 24 sliding peace
In third straight slot 29, the setting of the second motor 27 is fixed second on disk 26；One end of second connecting rod 25 and the second slide post
The other end be connected by power of 24 connections, the second motor 27 and second connecting rod 25 drives second connecting rod 25 to be swung；Fan-shaped centering block
14 at the second position, and push rod 19 is directed at the particle body in grasping part.
Particle rear end certain distance to be loaded is fixed to be had and particle to be loaded is towards consistent guide sleeve 18, guide sleeve 18
Tube wall is axially provided with the first straight slot of certain length, and push rod 19 is cased with inside guide sleeve 18, guide plate is fixedly connected on push rod 19
20, guide plate 20 play the guiding role to push rod 19 from the stretching of the first straight slot of guide sleeve 18 so that push rod 19 can only be moved in an axial direction
It is dynamic, it is hinged with the first slide post 21 in the end of guide plate 20, the first slide post 21 is stuck in the second straight slot 28 of first connecting rod 22
It can be slided inside the second straight slot 28,22 lower end of first connecting rod hinge is dynamic to be connected with the first fixation disk 23, and first fixes disk 23
Always fixed, first connecting rod 22 is provided with third straight slot in region between the second straight slot 28 and first fixes 23 articulated shaft of disk
29,29 length of third straight slot is longer than the second straight slot 28, and 29 inside card of third straight slot has the second slide post 24, the second slide post 24 hinge
Dynamic to be connected with second connecting rod 25, the other end hinge of second connecting rod 25 is dynamic to be connected on the second fixation disk 24, and second connecting rod 25
Articulated shaft is coaxially fixed with the second motor 27.Second connecting rod 25 is driven to rotate when the second motor 27 rotates, second connecting rod 25 exists
Make the second slide post 24 be slided in the third straight slot 29 of first connecting rod 22 while rotation, while first connecting rod 22 being driven to put
Dynamic, when first connecting rod 22 is swung, the first slide post 21 of driving drives guide plate 20 to be carried out at the same time axial slidably reciprocate so that
Push rod 19 can move axially back and forth, and the particle to be loaded on fan-shaped centering block 14 at gap 17 is pushed to enter particle pipe 11
In, the particle pipe 11 which completes is the drainage tube 2 in above-mentioned helical form short distance nucleic radiotheraphy device.
The particle of the present invention loads assembly automatically, and fan-shaped centering block 14 swing the particle made when rotation at gap 17
Body is released to slide to process clamped at gap 17 with the particle body to be loaded in particle casket 12 by particle body pushing in device and be followed
Ring back and forth carries out so that particle body can be ceaselessly into particle and sending particle during fan-shaped centering block 14 is swung, can be compared with
To be easily loaded to particle pipe 11, automatic loading, simple and convenient practicality are realized.
As in preferred technical solution, referring to Figure 19-20, clamping element includes：Two articulated slabs 30, clamping plate 31；Two
Articulated slab 30 is symmetricly set on side of the fan-shaped centering block 14 with gap 17, and clamping plate 31 is hinged between two articulated slabs 30,
Fan-shaped centering block 14 offers blind hole on the side with gap 17, and the second spring 32 in compressive state is equipped in blind hole,
One end of the end of second spring 32 closely clamping plate 31, the other end and the gap 17 of clamping plate 31 cooperatively form grasping part.
The rear end end of fixed column 10 is concordant with the end of particle pipe 11, and the end of 11 rear end of particle pipe is open state
It is reprinted convenient for particle, the fan-shaped centering block 14 there are one 90 degree, fan-shaped centering block is arranged in the position that the rear end of fixed column 10 is outer
14 move connection with the hinge of fixed column 10 so that at an angle with fixed column 10,14 articulated shaft of fan-shaped centering block is same for this fan-shaped centering block 14
Axis is fixedly connected with first motor 15, and fan-shaped centering block 14 carries out carrying out backswing close to 90 degree always under the drive of first motor 15
Dynamic, rectangular gap 17 is arranged in one end of 14 arc surface of fan-shaped centering block, on 14 side of fan-shaped centering block of 17 respective side of gap
There are two articulated slab 30, on articulated slab 30, hinge is dynamic is connected with clamping plate 31, the centre position of the lower half portion of clamping plate 31 for fixed setting
Corresponding sector centering block 14 setting is fixedly connected with second spring 32 there are one blind hole inside blind hole, second spring 32 it is another
End is connected on clamping plate 31, and second spring 32 is in the state of compression always so that the top half of clamping plate 31 is for gap 17
Place's particle item to be loaded is in the state clamped and will not get loose always, while clamping plate 31 is faced with the side for loading particle
Face upper end position is designed with arc-shaped chamfering, enters in clamping plate 31 and is clamped convenient for particle to be loaded.When fan-shaped centering block 14
When swing is rocked to maximum angle to the left, the direction of particle to be loaded and the corresponding particle pipe 11 in this position at gap 17
Nozzle towards consistent, when axially pushing at gap 17 when the particle loaded, particle can be pushed into corresponding at gap 17
Particle pipe 11 in.When fan-shaped centering block 14, which is swung, is rocked to maximum angle to the left the arc surface of fan-shaped centering block 14 on the right side
It is fixedly arranged above the particle casket 12 of a vertical state, particle casket 12 is fixed on this position always to change.Particle casket
12 is elongated, is stacked with particle to be loaded from bottom to top in the inside of particle casket 12, while vertical in the side of particle casket 12
It is provided with seam, convenient for 12 inside of observation particle casket with the remaining situation for loading particle, 12 lower end particle of particle casket withstands on fan-shaped centering block
It will not be skidded off on 14 arc surface, when fan-shaped centering block 14 is rocked to maximum angle to the right so that 12 lower end particle body of particle casket
When the gap 17 of 16 face sector centering blocks 14 of the opening that falls, inside particle casket 12 most under a particle slide at gap 17 simultaneously
It is clamped at right angle gap 17 by clamping plate 31, will not be sent out on the particle that 12 internal particle of particle casket is withstood at gap 17 at this time simultaneously
Life skids off, and when fan-shaped centering block 14 is swung to the left, 12 internal particle of particle casket withstands on the arc surface of fan-shaped centering block 14 and will not slide
Go out, when fan-shaped centering block 14, which is rocked to left position, to be set, the opening of particle face and particle pipe 11 to be loaded at gap 17, herein
Loading is applied equally to spheroidal particle 8.
As in preferred technical solution, it further includes intermittent tumbler that particle loads assembly automatically, intermittence rotation
Device includes：Fixed chuck 33, third fix disk 34, third connecting rod 35, fourth link 36, third slide post 37, the 5th connecting rod
38, the 4th disk 39, third motor 41 are fixed；Particle pipe 11, the second groove 13 quantity be multiple, multiple particles pipe 11 is uniform
It is spaced apart；On fixed 33 one side of chuck, fixed chuck offers and particle pipe the setting of fixed column 10 on 33 another side
The identical multiple guide grooves 40 of 11 quantity, multiple guide grooves 40 are uniformly arranged and cross in the circle centre position of fixed chuck 33；Third is fixed
Disk the 34, the 4th is fixed disk 39 and is fixedly installed, and the length of fourth link 36 is more than the diameter of fixed chuck 33, and third slide post 37 is set
It sets in one end of fourth link 36 and is slidably mounted in a guide groove 40, the other end of fourth link 36 and the one of third connecting rod 35
End is hinged；One end of 5th connecting rod 38 is fixed disk 39 with the 4th and is hinged, and the other end and the centre position of fourth link 36 are cut with scissors
It connects；Third motor 41, which is arranged, to be fixed on disk 34 in third and drives third connecting rod 35 with the other end be connected by power of third connecting rod 35
It is rotated so that the oval track of third slide post 37 is moved then drives fixed chuck 33, fixed column successively
10 carry out intermittent rotation.
When needing to be loaded the particle in more spiral particle pipes 11 in two structure of scheme, by more spiral particle pipes 11
Fixation be stuck in more spiral grooves i.e. second groove 13 on 10 cylindrical surface of fixed column, the specification of more spiral grooves of fixed column 10 with
Two holder of scheme, 1 spiral groove overall profile is consistent, and the head end of fixed column 10 fixed to the claw clamping of chuck 33 with three-jaw, and three
The disk seat back side that pawl fixes chuck 33 has three guide grooves 40 in the distribution of 120 degree of even circumferentials, three equally distributed guide grooves 40
It crosses in disk seat back side circle centre position.The dynamic third that is connected to of one end hinge of third connecting rod 35 fixes disk 34, and it is solid that third, which fixes disk 34,
Fixed motionless plane.The above-mentioned end of third connecting rod 35 has been fixedly and coaxially connected third motor 41, the other end of third connecting rod 35
With the dynamic connection of one end of fourth link 36 hinge, the other end hinge of fourth link 36 is dynamic be connected with third slide post 37 can be in guide groove 40
Middle sliding.Another 4th fixes the dynamic connection of one end hinge of disk 39 and the 5th connecting rod 38, the dynamic connection of other end hinge of the 5th connecting rod 38
Centre position is leaned in fourth link 36, when third connecting rod 35 is in straight line full extension with fourth link 36, third connects
Bar 35 makes the third slide post 37 of 36 other end of fourth link be located at fourth link 36 by the circle central axis of disk seat dorsal surface
Close marginal position in corresponding guide groove 40, third connecting rod 35 is when the drive of third motor 41 rotates at this time, while the 5th
Under the action of connecting rod 38 is to fourth link 36 so that one end that fourth link 36 is hinged with third slide post 37 is in similar tiltedly oval
The track of shape is moved, and third slide post 37 drives three-jaw to fix chuck 33 and rotates to the right under the swing of fourth link 36
120 degree of positions.Then guide groove 40 of the third slide post 37 on the right side of disk seat slides into upside under the swing of fourth link 36
In guide groove 40, disk seat does not rotate in the process.It is led when the third slide post 37 of fourth link 36 slides into upside again
When slot 40 leans on the position of proximal edge, it is in straight line that third connecting rod 35 and fourth link 36, which complete stretching, extension, when third connecting rod 35 again
When secondary rotation, the above process recycles again, so when 35 continuous rotation of third connecting rod, disk seat is carried out towards the same steering
120 degree of intermittent rotation.
As in preferred technical solution, particle pipe 11, the second groove 13 quantity be three, three guide grooves 40 are uniform
It is arranged and crosses in the circle centre position of fixed chuck 33, the oval track of third slide post 37 is moved then is driven successively
Fixed chuck 33, fixed column 10 carry out 120 degree of intermittent rotations, second side of corresponding helical form short distance nucleic radiotheraphy device
Case structure；Particle body includes spheroidal particle 8 or cylindrical particle 9, can be in helical form short distance nucleic radiotheraphy device
The structure of one and second scheme can be carried out loading.
When particle loads, it is in one that three-jaw, which fixes the dependency structure cooperation that 33 dependency structure of chuck is loaded with particle,
Complete stroke.It drives third connecting rod 35 to rotate when third motor 41 moves, while band is driven under the action of the 5th connecting rod 38
Dynamic fourth link 36 is so that three-jaw fixes the intermittent rotation that chuck 33 carries out 120 degree towards the same steering, three-jaw fixing card
Disk 33 drives the intermittent rotation that fixed column 10 equally carries out 120 degree.When fixed column 10, which is in interval, not to be turned, push rod 19
It releases forward in the particle push-in particle pipe 11 that will be clamped at 14 gap 17 of fan-shaped centering block, then three-jaw is fixed chuck 33 and driven admittedly
When fixed column 10 carries out 120 degree of rotation, the particle pipe 11 of next spiral rotates the angle loaded to particle, in the process,
The fan-shaped centering block 14 without particle swings to the right maximum angle at gap 17 so that the particle in particle casket 12 slides to fan-shaped centering block
At 14 17 clamping of gap, then fan-shaped centering block 14 is rocked at maximum angle to the left, and three-jaw is fixed chuck 33 and driven admittedly at this time
When next spiral particle pipe 11 is rotated 120 degree of positions loaded to particle by fixed column 10, push rod 19 pushes forward, by gap 17
In the particle push-in particle pipe 11 at place.The above process moves in circles always, until the particle quilt in three spiral particle pipes 11
It loads and completes, sealing then is sealed to particle pipe 11, it will be in the installation to the first groove 3 of particle holder 1 of particle pipe 11.
The innovative point and advantageous effect of the present invention is：
1. being fixed on 1 periphery of holder and can be placed in particle progress radiotherapy to biliary tract but also expand biliary tract particle chain dependency structure makes
Obtaining bile can normally circulate.
2. particle chain dependency structure to be combined and the characteristic of holder 1 can be transferred on particle chain with holder 1 so that grain
Subchain has the function of retractility as holder 1, certain wriggles and self centering so that particle chain can stablize be placed in it is specified
Position.
3. helical structure is arranged in drainage particle pipe 11 and pigtail is enabled the particles to by straight pipe head and the tail connection
The tissue of radiotherapy is needed to treat 1 periphery of holder to the full extent.Using the advantage that head and the tail are connected to lie also in particle can be with
It can be circulated in 2 spiral closed loop of particle drainage tube.
4. 1 twine of holder makes its clamping fixed for the position that particle drainage tube 2 contacts using the method for recess-mounted, can
So that particle radiotherapy can be carried out by laying bracket 1, it is simple and effective.
5. particle drainage tube 2 is fixedly connected with valve 5 in the position that front end pigtail is connected to straight pipe, grain is being loaded
Valve 5 shelters from pigtail channel when sub- so that and particle enters from straight pipe, when particle, which all loads, to be finished, valve
Film 5 shelters from open ended passage, allow particle pigtail and between straight pipe constitute closed loop internal circulation, will not be from opening
The discharge of mouth end.
6. being connected by spring or folded spring between adjacent particles so that have elasticity of extension and front and back phase between particle chain
It will not collide between neighbour, particle can be terminated by operation and pull out whole particle chain, be not in particles lost
The case where.
7. in the alternative plan of the present apparatus：Particle chain is wound in using multi start thread fixation between 1 periphery of holder, can
Make particle comprehensive engagement biliary tract neoplasm region.The length of single particle chain can be increased using multi start thread canoe simultaneously
Degree so that radiotherapy is more thorough.
8. all intersect dislocation between particle item, the radiation damping caused by the gap between particle can be made up, is had
There is certain leakage detection to fill a vacancy function, constitutes one and tend to complete curved surface, the effect of radiation therapy is more preferable, than single strip structure
It is better.
9. package is completely covered in particle chain using the form of upper and lower overlay film package so that every particle chain can only be in single
Limit activity inside upper and lower overlay film so that particle can be close to biliary tract neoplasm, while will not lose.
10. the guide groove 40 that three-jaw fixes 120 degree of even circumferentials distribution that chuck 33 is arranged coordinates third connecting rod the 35, the 4th to connect
Bar 36, the 5th connecting rod 38 toggle make three-jaw fix chuck 33 carry out 120 degree of intermittent rotaries so that fixed column 10
On three spiral particle pipes 11 be loaded successively.
11. fan-shaped centering block 14 carries out making the particle at gap 17 is pushed out to wait for in particle casket 12 when swinging rotation
Load particle and slide to the process being clamped at gap 17 and move in circles progress so that particle fan-shaped centering block 14 swing mistake
Ceaselessly into particle and particle can be sent in journey.
12. second connecting rod 25 rotates so that the second slide post 24 slide in the third straight slot 29 of first connecting rod 22 drives the
One connecting rod 22 carries out the movement that swings back and forth, and first connecting rod 22 is stuck in the first slide post 21 therein by the drive of the second straight slot 28 to be made
It obtains guide plate 20 and carries out back and forth axial linear movement, drive the movement of push rod 19.
13. it is in a complete stroke that three-jaw, which fixes the dependency structure cooperation that 33 dependency structure of chuck is loaded with particle, make
Three spiral particle pipes 11 are obtained to be loaded successively in the case where this assembly structure is fully automated operation until completion is loaded, in whole process
In it is convenient and efficient, avoid injury of the radioactivity to human body when doctor manually goes to load particle.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of helical form short distance nucleic radiotheraphy device, which is characterized in that including：Cylindrical holder, drainage tube；It is described
Spiral first groove is offered on holder, the drainage tube is mounted in first groove in the shape of a spiral, described to draw
Several radioactive particle bodies are installed in flow tube.
2. the apparatus according to claim 1, which is characterized in that two adjacent described put in several described radioactive particle bodies
It is attached by the first spring or folded spring between penetrating property particle body.
3. the apparatus according to claim 1, which is characterized in that the drainage tube, the first groove quantity be one and
The two shape matches, and the drainage tube includes pigtail and the straight pipe that is connected to the pigtail, the spiral
Pipeline section is connected on the bracket with the straight pipe after detour spiral and setting at an acute angle；The pigtail and the straight tube
The connectivity part of section is provided with valve, and the valve separates the straight pipe under without outer force effect, under external force institute
Valve is stated to cover the nozzle of the pigtail.
4. device according to claim 3, which is characterized in that the section of first groove be in arc-shaped, described first
The upper end of groove is higher than the center of circle of the drainage tube section, is provided on first groove and with the drainage tube cling admittedly
Fixed bounding point.
5. the apparatus according to claim 1, which is characterized in that the drainage tube, the first groove quantity be it is multiple and
The two shape matches, and multiple drainage tubes are evenly spaced on；The section of first groove be in arc-shaped, described first
The upper end of groove is higher than the center of circle of the drainage tube section, is located at the top of first groove on the holder and lower part corresponds to
It is provided with overlay film and lower overlay film, the drainage tube is coated between the upper overlay film and lower overlay film.
6. the apparatus according to claim 1, which is characterized in that the particle body includes spheroidal particle or cylindric grain
Son.
7. a kind of particle using helical form short distance nucleic radiotheraphy device described in claim 1 loads assembly automatically,
It is characterized in that, the particle loads assembly and includes automatically：Fixed column, particle pipe, particle casket, particle body feed device, particle body
Pushing in device；Offer spiral second groove in the fixed column, the particle pipe is mounted on described the in the shape of a spiral
In two grooves；
The particle body feed device includes：Fan-shaped centering block, first motor, clamping element；It is mounted with several in the particle casket
The lower part of radioactive particle body, the particle casket offers particle body whereabouts opening, the particle casket fixed setting and its underpart
Arc surface one end of the closely arc surface of the fan-shaped centering block, the sector centering block offers gap, and the clamping element setting exists
The sector centering block has on the side of the gap, and the gap is cooperatively formed with the clamping element described in grasping part clamping
Particle body, the first motor are fixedly installed and drive the fan-shaped centering block in first position with the fan-shaped centering block be connected by power
And it is swung between the second position；At first position, the grasping part is directed at the particle body whereabouts and opens the sector centering block
Mouthful, for the sector centering block at the second position, the particle body in the grasping part is directed at the nozzle of the particle pipe；
The particle body pushing in device includes：Guide sleeve, push rod, guide plate, the first slide post, first connecting rod, first fix disk, second
Slide post, second connecting rod, second fix disk, the second motor；The first straight slot, the push rod dress are provided in the axial direction on the guide sleeve
It is located in the guide sleeve；One end of the guide plate is connect across first straight slot with the push rod, the other end and described first
Slide post connects；The second straight slot and third straight slot are offered on the first connecting rod, the length of the third straight slot is more than described
The length of second straight slot, the first fixation disk, the second fixation disk are fixedly installed, far from described second on the first connecting rod
The end of straight slot fixes that disk is hinged, and first slide post is slidably mounted in second straight slot with described first, and described the
Two slide posts are slidably mounted in the third straight slot, and the second motor setting is fixed described second on disk；Described second
One end of connecting rod is connect with second slide post, and the other end be connected by power of second motor and the second connecting rod drives
The second connecting rod is swung；For the sector centering block at the second position, the push rod is directed at the grain in the grasping part
Daughter.
8. particle according to claim 7 loads assembly automatically, which is characterized in that the clamping element includes：Two hinged
Plate, clamping plate；Two articulated slabs, which are symmetricly set on the fan-shaped centering block, to be had on the side of the gap, and the clamping plate is hinged
Between two articulated slabs, blind hole is offered on the side of the sector centering block with the gap, is pacified in the blind hole
Equipped with the second spring in compressive state, one end of the end of the second spring closely clamping plate, the clamping plate it is another
One end cooperatively forms grasping part with the gap.
9. particle according to claim 7 loads assembly automatically, which is characterized in that the particle loads assembly and also wraps automatically
Intermittent tumbler is included, the intermittence tumbler includes：Fixed chuck, third fix disk, third connecting rod, the 4th company
Bar, third slide post, the 5th connecting rod, the 4th fix disk, third motor；The particle pipe, the second groove quantity be it is multiple,
Multiple particle pipes are evenly spaced on；The fixed column is arranged on the fixed chuck one side, the fixed chuck
Multiple guide grooves identical with the particle pipe quantity are offered on another side, multiple guide grooves are uniformly arranged and described solid
The circle centre position for determining chuck crosses；The third fixes disk, the 4th fixation disk fixed setting, and the length of the fourth link is more than institute
The diameter of fixed chuck is stated, the third slide post is arranged in one end of the fourth link and is slidably mounted on a guide groove
Interior, the other end of the fourth link and one end of the third connecting rod are hinged；One end and the described 4th of 5th connecting rod
Fixed disk is hinged, and the other end and the centre position of the fourth link are hinged；The third motor is arranged in the third
The third connecting rod is driven to be rotated on fixed disk and with the other end be connected by power of the third connecting rod so that the third
The oval track of slide post is moved then drives the fixed chuck, fixed column to carry out intermittent rotation successively.
10. particle according to claim 9 loads assembly automatically, which is characterized in that the particle pipe, the second groove number
Amount is three, and three guide grooves are uniformly arranged and cross in the circle centre position of the fixed chuck, and the third slide post is in
The track of ellipse is moved then drives the fixed chuck, fixed column to carry out 120 degree of intermittent rotations successively；The grain
Daughter includes spheroidal particle or cylindrical particle.
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| CN201810692595.XA CN108744318B (en) | 2018-06-29 | 2018-06-29 | Particle automatic loading assembly structure |
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| CN201810692595.XA CN108744318B (en) | 2018-06-29 | 2018-06-29 | Particle automatic loading assembly structure |
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| CN108744318B CN108744318B (en) | 2024-01-30 |
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| CN113895920A (en) * | 2021-10-12 | 2022-01-07 | 山东卓业电子科技有限公司 | Method based on radioactive particle automatic loader |
| WO2022022576A1 (en) * | 2020-07-28 | 2022-02-03 | 南京融晟医疗科技有限公司 | Intracavitary radiotherapy apparatus and use method thereof |
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| WO2022022576A1 (en) * | 2020-07-28 | 2022-02-03 | 南京融晟医疗科技有限公司 | Intracavitary radiotherapy apparatus and use method thereof |
| CN113895920A (en) * | 2021-10-12 | 2022-01-07 | 山东卓业电子科技有限公司 | Method based on radioactive particle automatic loader |
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