CN103418089A - Indexing head mechanism of high-dose-rate multi-channel after-loading therapy apparatus - Google Patents

Indexing head mechanism of high-dose-rate multi-channel after-loading therapy apparatus Download PDF

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Publication number
CN103418089A
CN103418089A CN2013103615234A CN201310361523A CN103418089A CN 103418089 A CN103418089 A CN 103418089A CN 2013103615234 A CN2013103615234 A CN 2013103615234A CN 201310361523 A CN201310361523 A CN 201310361523A CN 103418089 A CN103418089 A CN 103418089A
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China
Prior art keywords
index dial
installing plate
head mechanism
vertical installing
mounting plate
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CN2013103615234A
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Chinese (zh)
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CN103418089B (en
Inventor
姜杉
方贤春
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Tianjin University
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Tianjin University
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Abstract

The invention discloses an indexing head mechanism of a high-dose-rate multi-channel after-loading therapy apparatus. The indexing head mechanism comprises a shell; a vertical mounting plate is fixedly connected into the shell, an indexing disc which is parallel to the vertical mounting plate is arranged at the rear of the vertical mounting plate and is driven by a stepper motor, and the stepper motor is fixedly mounted on the vertical mounting plate; an S-shaped guide tube is fixedly connected onto the indexing disc, an outlet of the S-shaped guide tube extends out of the indexing disc and is opposite to an inlet of one of a plurality of connecting guide tubes, the multiple connecting guide tubes are fixed onto the vertical mounting plate, and outlets of the connecting guide tubes are connected with external therapy guide tube interfaces. The indexing head mechanism has the advantages of simple structure, convenience in manufacture and easiness in maintenance.

Description

High dose rate multichannel afterloader dividing head mechanism
Technical field
The present invention relates to medical instruments field, belong to the mechanical front subject intersected with medical science, particularly relate to a kind of plesioradiotherapy equipment.
Background technology
In the treatment of cancer, except operation and chemotherapy, radiotherapy is also an important means.Radiotherapy is the roentgenization tumor with various different-energies, to suppress and to kill a kind of Therapeutic Method of cancerous cell, according to the roentgenization mode, can be divided into telecurie irradiation and irradiation at short distance.Telecurie irradiation is extracorporeal irradiation, is, by roentgenotherapia machine etc., ray focusing is carried out to short irradiation to body surface or in-vivo tumour position outside human body, to play the effect of kill tumor cell.Irradiation at short distance is that the radioactive source particle of high dose rate forever or is temporarily imported to tumor canceration position by external device, thereby tumor cell is killed and wounded, and irradiation at short distance mainly completes by afterloading unit or acupuncture mechanism.
Plesioradiotherapy is compared teleradiotherapy following several large benefit: 1) closely radiant is gathered in tumor locus by the high dose rate ray, and normal adjacent tissue is subject to very little dose irradiation, thereby the protection normal structure, reduce the side effect of irradiating; 2) can be irradiated tumor from multi-faceted, thereby be improved the effect to tumor-killing; 3) treatment time short, the patient can go to a doctor at any time.
The plesioradiotherapy capital equipment is afterloader, afterloading unit can by intracavity, pipe, in interpolation, art, the means such as apply ointment or plaster insert the cancerous cell in human body to the mini-radioactive resource of high dose.The radioactive source of high dose rate is fixed by welding in and drives the steel wire end, under inner conduit and the guiding of external treatment conduit, arrives the oncotherapy point.The process of afterloading unit work is that radioactive source is successfully derived, and then under the effect of dividing head, selects different treatment passages.Use the situation of different manufacturers afterloading unit by various big hospital, recognize that almost the afterloading unit of each producer has different problems in actual use, treatment channel selecting centering is inaccurate, and radioactive source transmits and has some setbacks etc.
Summary of the invention
The present invention provides a kind of high dose rate multichannel afterloader dividing head mechanism simple in structure for solving the technical problem existed in known technology.
The present invention for the technical scheme that solves the technical problem that exists in known technology and take is: a kind of high dose rate multichannel afterloader dividing head mechanism, comprise shell, be connected with vertical installing plate in described shell, the rear of described vertical installing plate is provided with index dial in parallel, described index dial is by step motor drive, and described motor is fixedly mounted on described vertical installing plate; Be connected with S type conduit on described index dial, described index dial is stretched out in the outlet of described S type conduit, and relative with the entrance of connecting duct, many described connecting ducts are fixed on described vertical installing plate, and the outlet of described connecting duct is connected with the external treatment catheter interface.
Be fixed with electric magnet on described vertical installing plate, be provided with the push-pull bar be slidably connected with it on described electric magnet; Described index dial is provided with the locating hole with described push-pull bar adaptation.
Advantage and good effect that the present invention has are: motor is arranged on vertical installing plate front, makes internal structure more reasonable, can realize the distribution of passage on whole circumference, and convenient treatment is used.By uniform locating hole is set on index dial, the push-pull bar of cooperation solenoid actuated carries out spacing, thereby has realized the accurate location to index dial.The present invention is simple in structure, easily manufactured, easy care.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The structural representation that Fig. 2 is index dial of the present invention and S type conduit;
The side view that Fig. 3 is Fig. 2.
In figure: 1, shell, 2, index dial, 21, locating hole, 3, S type conduit, 4, push-pull bar, 5, vertical installing plate, 6, electric magnet, 7, connecting duct, 8, motor, 9, the treatment catheter interface.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1~Fig. 3, a kind of high dose rate multichannel afterloader dividing head mechanism, comprise shell 1, be connected with vertical installing plate 5 in shell 1, vertically the rear of installing plate 5 is provided with index dial in parallel 2, index dial 2 is driven by motor 8, and motor 8 is fixedly mounted on vertical installing plate 5.Be connected with S type conduit 3 on index dial 2, index dial 2 is stretched out in the outlet of S type conduit 3, and relative with the entrance of connecting duct 7, many connecting ducts 7 are fixed on vertical installing plate 5, the outlet of connecting duct 7 is connected with external treatment catheter interface 9, vertically on installing plate 5, being fixed with electric magnet 6, be provided with the push-pull bar 4 be slidably connected with it on electric magnet 6, index dial 2 is provided with the locating hole 21 with push-pull bar 4 adaptations.
Operation principle of the present invention:
During afterloading unit work, motor is accepted instruction, and electric magnet obtains electric simultaneously, push-pull bar is regained, break away from locating hole, now the step motor drive index dial rotates a set angle, makes S type winding pipe exit aim at the connecting duct entrance on vertical installing plate, form special modality, now electric magnet outage, the push-pull bar end extend out in locating hole, and index dial is locked, can not rotate, radioactive source imports setting oncotherapy point by established passage and is treated.A single point has been treated rear radioactive source and has been retracted in safety can by the driven motor of steel wire, then repeats the treatment that above-mentioned steps is proceeded next point of care, until complete the treatment of all point of care.
Above-mentioned S type duct entry is connected with the radioactive source safety can, and the centres of S type duct entry end face center and index dial, to realize S type conduit, rotates smoothly, can not twist.
Although the above is described the preferred embodiments of the present invention by reference to the accompanying drawings; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protects, can also make a lot of forms, within these all belong to protection scope of the present invention.

Claims (2)

1. a high dose rate multichannel afterloader dividing head mechanism, it is characterized in that, comprise shell, be connected with vertical installing plate in described shell, the rear of described vertical installing plate is provided with index dial in parallel, described index dial is by step motor drive, and described motor is fixedly mounted on described vertical installing plate; Be connected with S type conduit on described index dial, described index dial is stretched out in the outlet of described S type conduit, and relative with the entrance of connecting duct, many described connecting ducts are fixed on described vertical installing plate, and the outlet of described connecting duct is connected with the external treatment catheter interface.
2. high dose rate multichannel afterloader dividing head according to claim 1 mechanism, is characterized in that, on described vertical installing plate, is fixed with electric magnet, is provided with the push-pull bar be slidably connected with it on described electric magnet; Described index dial is provided with the locating hole with described push-pull bar adaptation.
CN201310361523.4A 2013-08-16 2013-08-16 High dose rate multichannel afterloader indexing head mechanism Active CN103418089B (en)

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CN201310361523.4A CN103418089B (en) 2013-08-16 2013-08-16 High dose rate multichannel afterloader indexing head mechanism

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CN103418089B CN103418089B (en) 2016-01-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104511097A (en) * 2014-12-22 2015-04-15 天津大学 High-dosage multi-channel index head mechanism of after-loading therapy equipment
CN105327455A (en) * 2015-10-27 2016-02-17 江苏海明医疗器械有限公司 Nuclide after-loading therapy equipment channel selection system
CN109395259A (en) * 2018-12-25 2019-03-01 山东新华医疗器械股份有限公司 A kind of afterloader

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4803992A (en) * 1980-10-28 1989-02-14 Lemelson Jerome H Electro-optical instruments and methods for producing same
CN1190602A (en) * 1997-02-14 1998-08-19 王力平 Device for correcting operation accumulative error of rear installed radiation source
US6575891B1 (en) * 1999-02-16 2003-06-10 Cordis Corporation Manual ribbon delivery system for intravascular radiation therapy
CN2907757Y (en) * 2006-05-30 2007-06-06 山东新华医疗器械股份有限公司 Integrated after loading therapeutic machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4803992A (en) * 1980-10-28 1989-02-14 Lemelson Jerome H Electro-optical instruments and methods for producing same
CN1190602A (en) * 1997-02-14 1998-08-19 王力平 Device for correcting operation accumulative error of rear installed radiation source
US6575891B1 (en) * 1999-02-16 2003-06-10 Cordis Corporation Manual ribbon delivery system for intravascular radiation therapy
CN2907757Y (en) * 2006-05-30 2007-06-06 山东新华医疗器械股份有限公司 Integrated after loading therapeutic machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104511097A (en) * 2014-12-22 2015-04-15 天津大学 High-dosage multi-channel index head mechanism of after-loading therapy equipment
CN104511097B (en) * 2014-12-22 2017-07-07 天津大学 High dose rate multichannel afterloader indexing head mechanism
CN105327455A (en) * 2015-10-27 2016-02-17 江苏海明医疗器械有限公司 Nuclide after-loading therapy equipment channel selection system
CN109395259A (en) * 2018-12-25 2019-03-01 山东新华医疗器械股份有限公司 A kind of afterloader

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