CN2426743Y - Device for applying media in cavum nasopharyngeum - Google Patents
Device for applying media in cavum nasopharyngeum Download PDFInfo
- Publication number
- CN2426743Y CN2426743Y CN 00234538 CN00234538U CN2426743Y CN 2426743 Y CN2426743 Y CN 2426743Y CN 00234538 CN00234538 CN 00234538 CN 00234538 U CN00234538 U CN 00234538U CN 2426743 Y CN2426743 Y CN 2426743Y
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- wave
- energy source
- applying device
- air bag
- utility
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Abstract
The utility model relates to a radiotherapy applying device in nasopharyngeal cavities, which is composed of an applying device body and an applying device tube, wherein, the lower part of the near front end of the applying device body is provided with an air bag and a vent hole on the rear end is communicated with the air bag; the front end of the applying device body is provided with a radial hole. When the utility model is used, a thread penetrates the radial hole, and the positioning of the applying device can be conveniently carried out by pulling the thread in a mouth, and then, the applying device is fixed and leads a radioactive source to be near to a tumor region by the air bag being inflated. The utility model has the advantages of convenient positioning control, reasonable dose distribution and safety, and overcomes the shortage of the prior art.
Description
This utility model relates to medical apparatus, particularly nasopharyngeal carcinoma intracavitary therapy utensil.
The nasopharynx in-cavity radiotherapy applicating device for curing is a nearly cylindrical bar shape elastomer, and there is supply radiator duct the centre.During radiotherapy, apparatus for wave-energy source is filled in the cavum nasopharyngeum, the end has the conduction steel wire of radioactive source to insert supply radiator duct, moves the conduction steel wire and makes radioactive source be in tumor area, carries out plesioradiotherapy.Since the nineties, the nasopharyngeal carcinoma external exposure is in conjunction with closely the nasopharynx intracavitary radiotherapy has been widely used in early stage nasopharyngeal carcinoma, the whole rhinopharyngeal neoplasm of treatment is residual and the treatment of nasopharynx local recurrence, irradiation complication and sequela at a specified future date have obviously been reduced, 5 years local control rates of nasopharyngeal carcinoma are obviously improved than simple external exposure, reach 82.8%.According to the report of Shanghai tumour hospital of medical university, five year survival rate brings up to 75% from about 40%.
Apparatus for wave-energy source has rubber catheter, balloon catheter and nasopharynx plastic pattern three classes respectively in the cavum nasopharyngeum that uses both at home and abroad at present, and clinical practice has the following disadvantages, and rubber catheter apparatus for wave-energy source 1 (see figure 1) has the cylindrical elastomeric of supply radiator duct 2 for central authorities.This apparatus for wave-energy source is easy to operate, but its difficult fixing in cavum nasopharyngeum, easy displacement, simultaneously, supply radiator duct is difficult for making radiation dose distribution undesirable near tumor, affects the treatment, and perhaps causes normal tissue injury, and the serious necrosis that makes it is bored a hole.Balloon catheter apparatus for wave-energy source 5 (see figure 2)s have an annular air-pocket 6 for the front end in cylindrical elastomeric, its inflation by annular air-pocket is apparatus for wave-energy source fixedly, overcome the easily shortcoming of displacement of rubber catheter apparatus for wave-energy source, but be positioned at the central authorities of air bag because of apparatus for wave-energy source, the radiological dose that tumor area and normal structure are subjected to is identical, has the unfavorable problem of radiological dose equally.Nasopharynx plastic pattern apparatus for wave-energy source is at first made the plastic pattern of patient's cavum nasopharyngeum, at nearly tumor area supply radiator duct is set, move this apparatus for wave-energy source to cavum nasopharyngeum through the oral cavity during treatment and determine the position, solved the difficult and unfavorable problem of dose distribution in above-mentioned two kinds of apparatus for wave-energy sourcees location, but modeling is complicated, it is convenient that operation is owed, and easily makes patient's cavum nasopharyngeum mucosa injury hemorrhage.
The purpose of this utility model is to design that a kind of location is easy to adjust, and the radiotherapy dose distribution is reasonable, and safe and reliable nasopharynx in-cavity radiotherapy applicating device for curing is to overcome the deficiencies in the prior art.
This utility model design is: a kind of nasopharynx in-cavity radiotherapy applicating device for curing, form by apparatus for wave-energy source body and supply radiator duct, and it is characterized in that below apparatus for wave-energy source body front end, an air bag being arranged, the passage that is positioned at the rear end communicates with air bag.Simultaneously, the front end at the apparatus for wave-energy source body has a radial hole.
This apparatus for wave-energy source confirms through clinic trial, and is easy to operate, accurate positioning, and the radiotherapy dose distribution is reasonable, and is safe and reliable, reached Expected Results.
Now be described further in conjunction with legend.
Fig. 1 is the rubber catheter apparatus for wave-energy source and conducts steel wire, radioactive source structural representation.
Fig. 2 is a balloon catheter apparatus for wave-energy source structural representation.
Fig. 3 is this utility model apparatus for wave-energy source example structure sketch map.
Among the figure: 1 rubber catheter apparatus for wave-energy source body, 2 supply radiator ducts, 3 conduction steel wires, 4 radioactive sources, 5 balloon catheter apparatus for wave-energy source bodies, 6 annular air-pockets, 7 this utility model apparatus for wave-energy source bodies, 8 air bags, 9 vent caps, 10 radial holes.
This utility model apparatus for wave-energy source body 7 usefulness guaranteed milk glue materials are made, and front end is a round end, and the rear end is planar pole body, external diameter 4mm, pipe range 150mm, axis have a diameter be the 2mm through hole to the nearly bottom of front end, supply radiator duct 2 injects this hole from the rear end.Supply radiator duct is the thin-walled hollow pipe, and preceding is cecum, and the rear end is connected with therapy apparatus.Apparatus for wave-energy source body rearward end external diameter is big slightly, so that operation.Below distance apparatus for wave-energy source body front end 15mm place an air bag 8 is arranged, the passage 9 of rear end side communicates with air bag.Apparatus for wave-energy source body front end has a radial hole 10.
During radiotherapy, apparatus for wave-energy source is injected in patient's cavum nasopharyngeum, by illuminator manual adjustment apparatus for wave-energy source position, make the antimere of air bag aim at tumor area, air is injected in the air bag 8 with syringe through passage 9 then, air bag promptly expands and heaves, apparatus for wave-energy source is shown consideration for nearly tumor surface, then supply radiator duct 2 is fixed in the nostril before, after the X-ray simulated positioner is confirmed, the X-ray sheet that takes and the planning system of other data input therapy apparatuss, and supply radiator duct is connected with therapy apparatus.Start therapy apparatus, conduction steel wire 3 promptly stretches out from therapy apparatus and enters in the supply radiator duct, the position of computer controlled automatic radioactive source 4 (iridium 192) and resident (radiotherapy) time, carries out plesioradiotherapy.In addition, silk thread is penetrated the radial hole of apparatus for wave-energy source front end, the pulling silk thread can be assisted apparatus for wave-energy source is all around moved in the oral cavity, makes the apparatus for wave-energy source location more convenient and accurate.
Be in calm state during the air bag unaerated, only protrude in cylinder slightly, make take and when locating apparatus for wave-energy source activity can not damage patient's cavum nasopharyngeum mucosa freely.Determine behind the position airbag aeration to be expanded, fixed.Because air bag is one-sided, makes the apparatus for wave-energy source axis shift to tumor area after the inflation, radioactive source is near tumor area, strengthened radiotherapeutic effect, and normal structure is away from radioactive source, not the excessive radiation of reason and damaged, dose distribution is improved greatly, has reached purpose of design of the present utility model fully.
Claims (2)
1, a kind of nasopharynx in-cavity radiotherapy applicating device for curing is made up of apparatus for wave-energy source body and supply radiator duct, and it is characterized in that has an air bag below apparatus for wave-energy source body front end, and the passage that is positioned at the rear end communicates with air bag.
2, a kind of nasopharynx in-cavity radiotherapy applicating device for curing according to claim 1 is characterized in that at the front end of apparatus for wave-energy source body one radial hole being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234538 CN2426743Y (en) | 2000-05-16 | 2000-05-16 | Device for applying media in cavum nasopharyngeum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234538 CN2426743Y (en) | 2000-05-16 | 2000-05-16 | Device for applying media in cavum nasopharyngeum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2426743Y true CN2426743Y (en) | 2001-04-18 |
Family
ID=33596612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00234538 Expired - Fee Related CN2426743Y (en) | 2000-05-16 | 2000-05-16 | Device for applying media in cavum nasopharyngeum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2426743Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147688A (en) * | 2014-07-31 | 2014-11-19 | 吉林大学 | Rapidly-formed self-adaptive afterloading brachytherapy source applicator and manufacturing method thereof |
| CN106345048A (en) * | 2016-09-27 | 2017-01-25 | 深圳先进技术研究院 | Source application position determining method based on magnetic resonance imaging and source applicator outer tube |
| CN112933424A (en) * | 2021-01-22 | 2021-06-11 | 珠海赛纳三维科技有限公司 | Source applicator |
-
2000
- 2000-05-16 CN CN 00234538 patent/CN2426743Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147688A (en) * | 2014-07-31 | 2014-11-19 | 吉林大学 | Rapidly-formed self-adaptive afterloading brachytherapy source applicator and manufacturing method thereof |
| CN106345048A (en) * | 2016-09-27 | 2017-01-25 | 深圳先进技术研究院 | Source application position determining method based on magnetic resonance imaging and source applicator outer tube |
| CN106345048B (en) * | 2016-09-27 | 2020-03-06 | 深圳先进技术研究院 | Position positioning method for source application based on magnetic resonance imaging and outer tube of source application device |
| CN112933424A (en) * | 2021-01-22 | 2021-06-11 | 珠海赛纳三维科技有限公司 | Source applicator |
| CN112933424B (en) * | 2021-01-22 | 2023-04-07 | 珠海赛纳三维科技有限公司 | Source applicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |