CN203816077U - Single-tube type cervical source applicator - Google Patents
Single-tube type cervical source applicator Download PDFInfo
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- CN203816077U CN203816077U CN201420131475.XU CN201420131475U CN203816077U CN 203816077 U CN203816077 U CN 203816077U CN 201420131475 U CN201420131475 U CN 201420131475U CN 203816077 U CN203816077 U CN 203816077U
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- tube
- supply radiator
- radiator duct
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- energy source
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Abstract
The utility model discloses a single-tube type cervical source applicator which comprises a source application tube; an air bag is arranged at the front end of the source application tube and is connected with an air inflation pipe; a limiting pipe is sheathed on the source application tube at the side close to the front end; a push ring capable of sliding along the source application tube is sheathed on the source application tube in the limiting pipe; a plurality of arc pieces are arranged along the circumference in the limiting pipe in parallel; the certain ends of the arc pieces are fixedly connected to the upper end of the push ring, and the other ends of the arc pieces extend outside the upper end of the limiting pipe and are respectively provided with a sleeve ring; each sleeve ring is internally provided with an auxiliary tube; the lower end of the push ring is connected with a rigid rod; the rigid rod is connected with a locating push button arranged on the outer wall of the source application tube; the lower end of the limiting pipe is connected with a push rod; the push rod is connected with a positioning button arranged on the outer wall of the source application tube. The cervical source applicator adopts a single tube structure, is small in size, convenient to operate, easy to fix and low in pain of a patient, and has good treatment effect for the eccentric tumour.
Description
Technical field
This utility model relates to a kind of afterloading radiotherapy apparatus, is specifically related to a kind of single hose cervix uteri apparatus for wave-energy source.
Background technology
Cervical cancer is malignant tumor occurred frequently in world wide, and its sickness rate is only second to breast carcinoma.The therapeutic modality of cervical cancer mainly contains operation and radiotherapy, operation is applicable to early cervical carcinoma, and radiotherapy is applicable to each phase cervical cancer, and radiotherapy is not less than operative treatment for the therapeutic effect of early cervical carcinoma, and radiotherapy is due to features such as it are easy and simple to handle, indication is wide, patient suffering is little, become the important means of current treatment of human cervical cancer.
Rear source applicator has been brought into play important function as the main carriers of afterloading radiotherapy in Patients During Radiotherapy; what treatment irradiation for cervical cancer apparatus for wave-energy source mainly adopted at present is tee pipe apparatus for wave-energy source; in therapeutic process, can make isodose curve be flat pyriform distributes; forward-and-rearward radiological dose is lower than both sides, has effectively protected bladder and rectum.Tee pipe apparatus for wave-energy source in use, need to have three pipes and mutually shapes at an angle of 90, to operation require highly, use difficulty large, especially, for the sufferer of stricture of vagina, in operating process, misery is larger, simultaneously treatment plan more complicated.
The other defect that tee pipe apparatus for wave-energy source exists is, in use procedure, radioactive source moves in three lumens, and for cervix uteri eccentricity tumor, radiological dose can not be uniformly distributed, due to the restriction of its shape, make radioactive source can not be well near focus, affect therapeutic effect; Tee pipe apparatus for wave-energy source, in the time of operation, is not easy to fix, and easily displacement is deviate from, for radiotherapy brings many operational issues.
Summary of the invention
For the problem proposing in above-mentioned prior art, the purpose of this utility model is, a kind of single hose cervix uteri apparatus for wave-energy source is provided, and can make the more close focus of radioactive source, and easy and simple to handle and sufferer is painful little, especially to having good curative effect with eccentricity tumor.
In order to realize above-mentioned task, this utility model by the following technical solutions:
A kind of single hose cervix uteri apparatus for wave-energy source, comprises supply radiator duct, and the front end of supply radiator duct is provided with air bag, is connected with gas tube on air bag; The movable position-limiting tube that is set with of a side at supply radiator duct near front end, be arranged in and on the supply radiator duct of position-limiting tube, be set with the circle that pushes away that can slide along supply radiator duct, in position-limiting tube around the circumference of position-limiting tube multiple arc sheets that be arranged in parallel, one end of arc sheet is cemented in the upper end that pushes away circle, the other end of arc sheet stretches out the upper end of position-limiting tube and the collar is installed, and auxiliary tube is installed in the collar; Be connected with rigid rod in the lower end that pushes away circle, rigid rod is connected with the location push button being arranged on supply radiator duct outer wall; Lower end at position-limiting tube is connected with push rod, and push rod is connected with the positioning button being arranged on supply radiator duct outer wall.
Further, the front end of described supply radiator duct is made up of outer tube and the inner tube that is sleeved on outer tube inside, and inner tube is the oval pipe with centre bore that heavy alloy is made, and outer tube is the round tube that low density material is made; Supply radiator duct remainder except front end is the body that there is through hole inside, and through hole and centre bore connect; The length of the front end of supply radiator duct is at least 2cm.
Further, one end of described auxiliary tube and a collar are fixed, and the other end of auxiliary tube passes remaining collar successively, and extend to the rear end of supply radiator duct along the body of supply radiator duct.
Further, the axial line of the described collar and the axial line of position-limiting tube are vertical.
Further, described arc sheet is shaped as circular arc under naturalness.
Further, on the supply radiator duct outer wall that location push button is set, be provided with location graduation.
Further, described gas tube is laid and is connected with air bag along supply radiator duct, is provided with multiple constraint rings for restricted charging pipe and auxiliary tube on supply radiator duct.
This utility model compared with prior art has the following advantages:
1. change current three-tube type apparatus for wave-energy source into single hose, be convenient to doctor's operation, patient suffering is little;
2. trocar sheath struts rear formation annular trace chamber, and radioactive source, at internal motion, changes the residence time of each point, realizes the uniform dose distribution of eccentricity tumor;
3. the setting of air bag is fixedly more prone to it, is difficult for deviating from, and facilitates doctor to operate;
4. open size according to patient's vagina width adjustment trocar sheath, be also suitable for for the patient of stricture of vagina.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of arc sheet while being contracted in position-limiting tube;
Fig. 3 is the structural representation of position-limiting tube and arc sheet;
Fig. 4 is the installation site schematic diagram of auxiliary tube and the collar;
Fig. 5 is the sectional view of supply radiator duct front end;
Number in the figure representative: 1-supply radiator duct, 1-1-outer tube, 1-2-inner tube, 1-3-centre bore, 2-constraint ring, 3-location push button, 4-location graduation, 5-position-limiting tube, 6-arc sheet, 7-gas tube, 8-air bag, 9-collar, 10-auxiliary tube, 11-rigid rod, 12-push away circle, 13-positioning button, 14-push rod;
Detailed description of the invention
The apparatus for wave-energy source that is applied at present cervix neoplasms treatment mostly is tee pipe apparatus for wave-energy source, its complicated operation, and patient's distress level is large; For eccentricity tumor, cannot fix a point focus to carry out emphasis radiotherapy, and be difficult to fix.For these problems, the present invention proposes a kind of apparatus for wave-energy source that allows radioactive source move along circuit orbit, in the time that the front end of apparatus for wave-energy source stretches into cervix uteri mouth, by adjusting the size of circuit orbit, can accurately radioactive source be delivered to and the immediate position of tumor, realize the fixed point of tumor and eliminate, there is obvious therapeutic effect for eccentricity tumor.
As shown in Figures 1 to 4, a kind of single hose cervix uteri apparatus for wave-energy source, comprises supply radiator duct 1, and the front end of supply radiator duct 1 is provided with air bag 8, is connected with gas tube 7 on air bag 8; Be set with position-limiting tube 5 at supply radiator duct 1 near a side of front end, be arranged on the supply radiator duct 1 of position-limiting tube 5, be set with can slide along supply radiator duct 1 push away circle 12, in position-limiting tube 5 around the circumference of position-limiting tube 5 multiple arc sheets 6 that be arranged in parallel, one end of arc sheet 6 is cemented in the upper end that pushes away circle 12, the other end of arc sheet 6 stretches out the upper end of position-limiting tube 5 and the collar 9 is installed, and auxiliary tube 10 is installed in the collar 9; Be connected with rigid rod 11 in the lower end that pushes away circle 12, rigid rod 11 is connected with the location push button 3 being arranged on supply radiator duct 1 outer wall; Be connected with push rod 14 in the lower end of position-limiting tube 5, push rod 14 is connected with the positioning button 13 being arranged on supply radiator duct 1 outer wall.
Agent structure of the present utility model is a supply radiator duct 1, the front end of supply radiator duct 1, and supply radiator duct 1 is no less than the part of 2cm foremost, is made up of, as shown in Figure 5 outer tube 1-1 and the inner tube 1-2 that is sleeved on outer tube 1-1 inside; Inner tube 1-2 is the oval pipe with centre bore 1-3 that heavy alloy is made, and outer tube 1-1 is the round tube that low density material is made; Heavy alloy refers to tungsten alloy for example, the alloy that metal isodensity is higher, and it has good shielding action to lonizing radiation; And low density material refers to as materials such as glass material, plastics, rubber, such material can make lonizing radiation penetrate smoothly and decay little.Adopt the object of this structure to be, this structure makes outside two end points of supply radiator duct 1 front end transverse radiological dose large, and all the other direction radiological doses are little, making isodose curve be flat pyriform distributes, meet the requirement of clinical dosage, meet tumor radiotherapy principle biology, can effectively reduce the amount of being subject to of small intestinal, rectum and bladder simultaneously.
Supply radiator duct 1 remainder except front end is the body that there is through hole inside, and through hole and centre bore 1-3 connect; Radioactive source stretches into through hole from the rear end of supply radiator duct 1, then reaches in centre bore 1-3, and focus is treated.
For cervix uteri eccentricity tumor, existing supply radiator duct 1 can not be pressed close to tumor well, and tee pipe apparatus for wave-energy source adjust time, patient's misery is larger, for this situation, has designed auxiliary tube 10 in this utility model.
As shown in the figure, be set with position-limiting tube 5 at supply radiator duct 1 near a side of front end, position-limiting tube 5 inner hollow, movable being sleeved on supply radiator duct 1, its effect is the shape for restriction arc sheet 6.The shape of arc sheet 6 under naturalness is circular arc, and naturalness refers to takes out arc sheet 6 separately, the state while not fettered by position-limiting tube 5.Arc sheet 6 arranges multiple, distributes equably, and be arranged in parallel between adjacent arc sheet 6 around the inner periphery of position-limiting tube 5.The lower end of arc sheet 6 is all connected to the upper end that pushes away circle 12 that can slide along supply radiator duct 1, when pushing away circle 12 time, arc sheet 6 stretches out from the upper end of position-limiting tube 5, due to the elastic return effect of arc sheet 6, its part of stretching out can be to the direction motion away from supply radiator duct 1,, the part that all arc sheets 6 stretch out position-limiting tube 5 can surround into a circle.
One end that arc sheet 6 stretches out position-limiting tube 5 is all provided with the collar 9, the vertical setting of axial line of the axial line of the collar 9 and position-limiting tube 5, and auxiliary tube 10 is installed in the collar 9, one end of auxiliary tube 10 and a collar 9 are fixed, the other end of auxiliary tube 10 passes remaining collar 9 successively, and extends to the rear end of supply radiator duct 1 along the body of supply radiator duct 1.In the time that arc sheet 6 is slowly released in by position-limiting tube 5, the round diameter that the end of arc sheet 6 forms increases gradually, and due to the induced effect at auxiliary tube 10 and the collar 9 fixed places (can coordinate to auxiliary tube 10 forward the application of force to help its motion), the continuous pipe body movement along supply radiator duct 1 of body meeting of auxiliary tube 10, and under the restriction of the collar 9, form the circle of non-closure, as shown in Figure 1.
Be connected with rigid rod 11 in the lower end that pushes away circle 12, rigid rod 11 is connected with the location push button 3 being arranged on supply radiator duct 1 outer wall; When promoting location when push button 3, rigid rod 11 promotes arc sheet 6 and travels forward, and realizes the expansion of stretching out position-limiting tube 5 parts of arc sheet 6, and the distance promoting by restriction can be controlled the size of the non-close ring that auxiliary tube 10 forms; And being provided with location graduation 4 in a side of location push button 3, location graduation 4 is demarcated in advance, is worth according to location graduation 4, the conglobate size of known shape.Rigid rod 11 can, along the interior laying of supply radiator duct 1, also can be laid in tube wall outside; In the present embodiment, rigid rod 11 is along the interior laying of supply radiator duct 1, and on the outer wall of supply radiator duct 1, along the moving direction of location push button 3, offers bar-shaped trough, locates like this push button 3 while moving along bar-shaped trough, promotes connected circle 12 motions that push away.
Consider after non-close ring forms, make it be close to cervix uteri collar extension, just can make it bring into play best effect, and different patient physiological structures have certain difference, variable thickness between cervix uteri collar extension and cervix uteri internal orifice, therefore, in this utility model, position-limiting tube 5 is movable being sleeved on supply radiator duct 1, position-limiting tube 5 lower ends are connected with push rod 14, and push rod 14 is connected with a positioning button 13 being arranged on supply radiator duct 1 outer wall.When promoting location push button 3, form after the non-close ring of good suitable size, now promote again positioning button 13, auxiliary pushing location push button 3 simultaneously, under both cooperations, make push rod 14 promote position-limiting tube 5 and advance or retreat, and then make non-close ring can be close to cervix uteri collar extension.Can make so non-close ring can form suitable size, can make again it be close to cervix uteri collar extension, thereby can make radioactive source more press close to tumor, reach good therapeutic effect.
On supply radiator duct 1, be provided with multiple constraint rings 2, gas tube 7 and auxiliary tube 10 all pass through from constraint ring 2, and gas tube 7 and auxiliary tube 10 are tightly laid along supply radiator duct 1, reduce the volume of whole apparatus for wave-energy source.
Tee pipe apparatus for wave-energy source is not easy to fix after stretching into cervix uteri, for this problem, in this utility model, be provided with air bag 8 at the leading section of supply radiator duct 1, air bag 8 is connected with gas tube 7, in the time that supply radiator duct 1 extend in cervix uteri mouth, air bag 8 is inflated, and air bag 8 inflating clips, between cervix uteri wall, play good fixation to apparatus for wave-energy source.
This device in use, first will be located push button 3 and promote downwards, make arc sheet 6 enter into position-limiting tube 5, then the rear end of supply radiator duct 1 will be connected with afterloader; Supply radiator duct 1 is extend in cervix uteri mouth by patient's vagina, reach lesions position, air bag 8 is inflated, apparatus for wave-energy source is fixed, then send into radioactive source and treat.If cervix uteri eccentricity tumor, promote location push button 3 and positioning button 13, under both cooperations, monitor the size of the non-close ring that auxiliary tube 10 forms by location graduation 4, with the position of non-close ring, make non-close ring be close to cervix uteri collar extension as far as possible, then send into radioactive source from the rear end of auxiliary tube 10, radioactive source is advanced into the position near tumor from auxiliary tube 10, treats.
Claims (7)
1. a single hose cervix uteri apparatus for wave-energy source, comprises supply radiator duct (1), it is characterized in that, the front end of supply radiator duct (1) is provided with air bag (8), is connected with gas tube (7) on air bag (8); Be set with position-limiting tube (5) at supply radiator duct (1) near a side of front end, be arranged on the supply radiator duct (1) of position-limiting tube (5), be set with can slide along supply radiator duct (1) push away circle (12), in position-limiting tube (5) around the circumference of position-limiting tube (5) the multiple arc sheets (6) that be arranged in parallel, one end of arc sheet (6) is cemented in the upper end that pushes away circle (12), the other end of arc sheet (6) stretches out the upper end of position-limiting tube (5) and the collar (9) is installed, and auxiliary tube (10) is installed in the collar (9); Be connected with rigid rod (11) in the lower end that pushes away circle (12), rigid rod (11) is connected with the location push button (3) being arranged on supply radiator duct (1) outer wall, be connected with push rod (14) in the lower end of position-limiting tube (5), push rod (14) is connected with the positioning button (13) being arranged on supply radiator duct (1) outer wall.
2. single hose cervix uteri apparatus for wave-energy source as claimed in claim 1, it is characterized in that, the front end of described supply radiator duct (1) is by outer tube (1-1) and be sleeved on the inner inner tube (1-2) of outer tube (1-1) and form, the oval pipe with centre bore (1-3) that inner tube (1-2) is made for heavy alloy, the round tube that outer tube (1-1) is made for low density material; Supply radiator duct (1) remainder except front end is the body that there is through hole inside, and through hole and centre bore (1-3) connect; The length of the front end of supply radiator duct (1) is at least 2cm.
3. single hose cervix uteri apparatus for wave-energy source as claimed in claim 1, it is characterized in that, one end and a collar (9) of described auxiliary tube (10) are fixed, the other end of auxiliary tube (10) passes remaining collar (9) successively, and extends to the rear end of supply radiator duct (1) along the body of supply radiator duct (1).
4. single hose cervix uteri apparatus for wave-energy source as claimed in claim 1, is characterized in that, the axial line of the described collar (9) is vertical with the axial line of position-limiting tube (5).
5. single hose cervix uteri apparatus for wave-energy source as claimed in claim 1, is characterized in that, described arc sheet (6) is shaped as circular arc under naturalness.
6. single hose cervix uteri apparatus for wave-energy source as claimed in claim 1, is characterized in that, on supply radiator duct (1) outer wall that location push button (3) is set, is provided with location graduation (4).
7. single hose cervix uteri apparatus for wave-energy source as claimed in claim 1, it is characterized in that, described gas tube (7) is laid and is connected with air bag (8) along supply radiator duct (1), is provided with multiple constraint rings (2) for restricted charging pipe (7) and auxiliary tube (10) on supply radiator duct (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131475.XU CN203816077U (en) | 2014-03-21 | 2014-03-21 | Single-tube type cervical source applicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131475.XU CN203816077U (en) | 2014-03-21 | 2014-03-21 | Single-tube type cervical source applicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816077U true CN203816077U (en) | 2014-09-10 |
Family
ID=51471624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420131475.XU Expired - Fee Related CN203816077U (en) | 2014-03-21 | 2014-03-21 | Single-tube type cervical source applicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854187A (en) * | 2016-06-27 | 2016-08-17 | 中国医学科学院北京协和医院 | Filling-free source applicator for gynecological intracavity radiotherapy |
| CN112057736A (en) * | 2020-09-18 | 2020-12-11 | 张鲁燕 | Cervical cancer afterloading radiotherapy applicator |
-
2014
- 2014-03-21 CN CN201420131475.XU patent/CN203816077U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854187A (en) * | 2016-06-27 | 2016-08-17 | 中国医学科学院北京协和医院 | Filling-free source applicator for gynecological intracavity radiotherapy |
| CN105854187B (en) * | 2016-06-27 | 2018-03-06 | 中国医学科学院北京协和医院 | A kind of gynaecology's intracavitary radiotherapy exempts to clog applicating device |
| CN112057736A (en) * | 2020-09-18 | 2020-12-11 | 张鲁燕 | Cervical cancer afterloading radiotherapy applicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20160321 |