CN107281630B - Balloon particle sleeve system for treating esophageal cancer - Google Patents
Balloon particle sleeve system for treating esophageal cancer Download PDFInfo
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- CN107281630B CN107281630B CN201710445326.9A CN201710445326A CN107281630B CN 107281630 B CN107281630 B CN 107281630B CN 201710445326 A CN201710445326 A CN 201710445326A CN 107281630 B CN107281630 B CN 107281630B
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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
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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
- A61N2005/1003—Intraluminal radiation therapy having means for centering a radioactive source within the lumen, e.g. balloons
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Abstract
The invention relates to an air bag particle sleeve system for treating esophagus cancer, wherein a nutrient solution injection connector and a nutrient solution injection channel communicated with the inner hole of a nutrient solution pipe are arranged in the nutrient solution pipe, the outer side end of the nutrient solution injection connector is provided with a nutrient solution injection reinforcing port, the nutrient solution injection connector is connected with a reinforcing connecting table through a rotating table, the reinforcing connecting table is connected with the nutrient solution pipe, and an air bag particle sleeve device is arranged on the outer wall of the nutrient solution pipe; avoid the adhesion between the skin inner wall tissue, the effectual high-efficient effect that has kept the radiation particle realizes rotation and flexible, and the concentration degree is high, has improved whole administration and to the direct drug effect of focus.
Description
Technical Field
The invention relates to medical equipment, in particular to a balloon particle cannula system for treating esophageal cancer.
Background
Esophageal cancer is a common tumor of the digestive tract, typical symptoms of esophageal cancer are progressive dysphagia, early symptoms are often not obvious, but there may be varying degrees of discomfort when swallowing coarse and hard food, including gag feeling of the food, burning-like, needle-like or traction-rubbing-like pain behind the sternum, mild and heavy symptoms, and the quality of life of patients is reduced. With the enlargement of tumor, firstly food which is hard to be swallowed dry is taken, then semifluid food is taken, and finally water and saliva can not be swallowed, and the esophageal cancer treatment method comprises operation treatment, radiotherapy and chemotherapy. If the whole body is good, the cardiopulmonary function is better reserved, and no obvious distant metastasis symptom exists, the radical operation treatment can be considered. However, most of China has a disease or a medical treatment, tumors often invade a plurality of visceral organs locally to lose the chance of radical operation, and only palliative radiotherapy and chemotherapy can be selected. The traditional emptying period is long, and complications such as esophageal perforation, fistula, radiation pneumonia, esophageal stenosis and the like are easy to occur. Patients who are combined with the failure to eat can only select palliative esophageal stent implantation treatment, but the esophageal stent can only open an esophageal narrow section and has no treatment effect on tumors.
Radioactivity125The I particle is a short-range nuclide for treating malignant tumor and is widely used clinically at present. At present, a brand-new treatment method is provided, namely radioactive particles are coated outside an esophageal stent by using a special method, so that a brachytherapy stent is formed. After the stent is implanted, not only can the esophageal stenosis be opened, but also the continuous low-dose irradiation function of 125I radioactive particles can be exerted, so that the malignant tumor of the esophagus can be treated. The method greatly improves the treatment effect and plays a role of killing two birds with one stone. However, this treatment has some clinical drawbacks, which are: firstly, grid structure to trunk supporter is thinner behind its frame rack structure vertically and horizontally staggered, mostly is rhombus hole or rectangular hole network structure, after acting on the focus, supports the expansion effect for a long time under, and the mesh combines with skin tissue easily, and granulation tissue hyperplasia leads to the support to narrow again. Secondly, if the tumor is very sensitive to brachytherapy and the tumor shrinks significantly in a short time, the residual particle radiotherapy dose will damage normal tissues, leading to possible complications. Third, esophageal tumors tend to grow heterogeneously within the lumen, but the dose coverage of the esophageal particle stent is cylindrical and the tumor receives a heterogeneous dose. Fourth, esophageal particle stenting is also only a palliative treatment, and after stenting, stents cannot be removed. Fifthly, if the esophageal particles are displaced after being implanted, the displacement of the particle dose is meant, and the therapeutic nuclide cannot accurately carry out short-distance treatment on esophageal tumorsAfter leaving radiotherapy and shifting, radioactive damage is easy to occur to the normal esophageal wall. Sixthly, receive the restriction of its tectorial membrane technology, the radiation particle is mostly on dispersion irregular distribution traditional tectorial membrane support, in the support implantation process, because focus pathological change position is irregular shape, even in same cutting layer loop line, also divide different shapes, some local serious, some local lighter, serious position needs more radiation particle, traditional particle support is difficult to accomplish to the symptomatic distribution, and exert the particle overall arrangement of different densities according to its distribution position, it is unstable to have caused whole treatment, comparatively serious position can not obtain effectual treatment simultaneously.
Therefore, the balloon particle sleeve system for treating the esophageal cancer is simple in structure, convenient to operate, high in working and operating efficiency, stable in operation, beneficial to popularization and promotion, capable of effectively relieving pain of patients, convenient to install and disassemble, obvious in effect, capable of distinguishing treatment and strong in overall stability and pertinence, and has wide market prospect.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the balloon particle cannula system for treating the esophageal cancer, which has the advantages of simple structure, convenient operation, high working and operating efficiency, stable operation, contribution to popularization and promotion, effective pain relief of patients, convenient installation and disassembly, obvious effect, treatment differentiation, overall stability and strong pertinence, and is used for solving the defects of the prior art.
The technical scheme of the invention is realized as follows: the utility model provides a sacculus particle bushing system of treatment esophagus cancer, includes the nutrient solution pipe, sets up at the nutrient solution inside pipe hole of nutrient solution pipe one side, sets up at the first mark layer of nutrient solution pipe one side tip, sets up at the nutrient solution injection connector of nutrient solution opposite side, installs the injection push rod in nutrient solution injection connector, nutrient solution injection connector and nutrient solution in be provided with the nutrient solution injection passageway that is linked together with the nutrient solution inside pipe hole, the outside end that the nutrient solution injected into the connector is provided with nutrient solution and pours into and strengthens the mouth, the nutrient solution injection connector is connected with the enhancement connection platform through the revolving stage, it is connected with the nutrient solution pipe to strengthen the connection platform, is provided with sacculus particle bushing device on the outer wall.
The balloon particle sleeve device comprises an inner balloon sleeved on the outer wall of the nutrition tube, an outer balloon membrane is sleeved on the outer side of the inner balloon, a radioactive particle limiting tube is arranged between the outer balloon membrane and the inner balloon, radioactive particles are filled in the radioactive particle limiting tube, the inner balloon is connected with a balloon inflation opening through an inflation pipeline, and a second marking layer is arranged on the nutrition tube on the inner side of the inner balloon.
Sacculus particle bushing apparatus set up on the nutrition tube of strengthening between connection platform and the nutrition tube hole, the enhancement connect the platform for cylindrical hollow sleeve structure, the mode fixed connection that the inner wall of strengthening the connection platform and the outer wall of nutrition tube adopt to paste, the inboard fixed connection of the outside of strengthening the connection platform through the mode of pasting and revolving stage, the inboard of revolving stage is provided with the through-hole, this through-hole is linked together with nutrient solution injection passageway, the outside of revolving stage is connected with the inboard mode that adopts the mode of pasting of nutrient solution injection connector, the nutrient solution is injected into and is strengthened mouthful to paste in the outside of nutrient solution injection connector.
Strengthen connecting platform, revolving stage, nutrient solution and pouring into the connector structure as an organic whole of strengthening mouthful and nutrient solution, evenly be provided with anti-skidding groove on the outer wall of revolving stage, strengthen the diameter of connecting the platform and be not less than the diameter of nutrition pipe, the diameter of revolving stage is not less than the diameter of strengthening the connection platform, the diameter of nutrient solution pouring into the connector is not more than the diameter of nutrition pipe, the diameter of strengthening the mouth is poured into to the nutrient solution and is equaled with the diameter of nutrition pipe.
The inner air bag is connected with an inflation pipeline through an inflation inlet, the inflation pipeline is arranged on the inner side of the nutrition tube, the inflation inlet is formed in the outer wall of the inner nutrition tube, one end of the inflation inlet is communicated with the inner side of the inner air bag, the other end of the inflation inlet is communicated with the inflation inlet of the air bag, the inner air bag is sleeved on the outer wall of the nutrition tube in a sticking mode, and the outer air bag film is arranged on the tube wall of the nutrition tube on the outer side of the inner air bag in a sticking mode.
The outer wall of the nutrient solution injection connector and the outer wall of the air bag inflation port are fixedly connected in a sticking mode.
The two second labeling layers are arranged at two ends of the nutrition tube at the inner side of the inner air bag, edge radioactive particle tubes are arranged at two ends of the radioactive particle limiting tube, and radioactive particles at edge positions are filled in the edge radioactive particle tubes.
The section of the outer cyst membrane is of a wavy annular structure, and a wavy limiting groove is formed in the outer side of the outer cyst membrane.
The invention has the following positive effects: the product has a simple structure and is convenient to operate, firstly, the product can avoid adhesion between the bracket of the traditional grid structure and the skin inner wall tissue after being put off the shelf, avoid injury caused by secondary pulling operation due to long-term parking, relieve the pain of a patient, and adopt the structure of the outer capsule membrane, so that the service life is long, the disappearance of the membrane under the long-term action is not changed, the high-efficiency action of the radioactive particles is effectively kept, and the subsequent medical work of treatment is convenient; secondly, the product realizes real-time movement and positioning along with the change and change of the position of the focus, is provided with a plurality of marking layers, can realize rotation and extension through a rotating platform after positioning, realizes rotation, transverse movement and longitudinal movement at relative positions, and is efficiently combined, thereby greatly improving the treatment effect; and thirdly, the radiation particle structure of the product adopts a nested type, is efficient to assemble, is regular and unified to plan and fix, has high concentration degree, has regular radiation particle dispersion, can operate and move, realizes the distinguishing of serious symptoms and light symptoms to treat a way, effectively operates aiming at the symptoms with different degrees of slowness in the same cutting layer loop line or on different operation surfaces with different longitudinal depths, applies particle layouts with different densities according to the distribution parts of the symptoms, greatly improves the stability and the efficient action, and improves the integral administration and the direct drug effect aiming at focuses.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a partial cross-sectional structural view of fig. 1 according to the present invention.
FIG. 5 is a schematic view of the partial cross-sectional structure of FIG. 2 according to the present invention.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5, a balloon particle casing system for treating esophageal cancer comprises a nutrition tube 1, a nutrition tube inner hole 3 arranged at one side of the nutrition tube 1, a first mark layer 2 arranged at the end part of one side of the nutrition tube 1, a nutrition liquid injection connector 13 arranged at the other side of the nutrition tube 1, and an injection push rod 15 arranged in the nutrition liquid injection connector 13, wherein a nutrition liquid injection channel 18 communicated with the nutrition tube inner hole 3 is arranged in the nutrition tube 13 and the nutrition tube 1, a nutrition liquid injection reinforcing port 14 is arranged at the outer end part of the nutrition liquid injection connector 13, the nutrition liquid injection connector 13 is connected with a reinforcing connection platform 9 through a rotating platform 10, the reinforcing connection platform 9 is connected with the nutrition tube 1, and a balloon particle casing device is arranged on the outer wall of the nutrition tube 1.
The balloon particle sleeve device comprises an inner balloon 5 sleeved on the outer wall of a nutrition tube 1, an outer balloon membrane 4 is sleeved on the outer side of the inner balloon 5, a radioactive particle limiting tube 6 is installed between the outer balloon membrane 4 and the inner balloon 5, radioactive particles 7 are filled in the radioactive particle limiting tube 6, the inner balloon 5 is connected with a balloon inflation port 12 through an inflation pipeline 16, and a second mark layer 8 is arranged on the nutrition tube 1 on the inner side of the inner balloon 5. Sacculus particle bushing apparatus set up on the nutrition tube 1 between strengthening connection platform 9 and nutrition tube hole 3, the enhancement connect platform 9 be cylindrical hollow sleeve structure, the mode fixed connection that the inner wall of strengthening connection platform 9 and the outer wall of nutrition tube 1 adopt pasting, the inboard fixed connection through mode and revolving stage 10 of pasting in the outside of strengthening connection platform 9, the inboard of revolving stage 10 is provided with the through-hole, this through-hole is linked together with nutrient solution injection channel 18, the outside of revolving stage 10 is connected with the inboard of nutrient solution injection connector 13 adopts the mode of pasting, nutrient solution is injected and is strengthened mouthful 14 and paste the outside at nutrient solution injection connector 13. Strengthen connecting platform 9, revolving stage 10, nutrient solution and pouring into and strengthen mouth 14 and nutrient solution and pour into connector 13 structure as an organic whole, evenly be provided with anti-skidding groove 11 on the outer wall of revolving stage 10, strengthen the diameter of connecting platform 9 and be not less than the diameter of nutrient canal 1, the diameter of revolving stage 10 is not less than the diameter of strengthening connecting platform 9, the diameter of connector 13 is not more than the diameter of nutrient canal 1 is poured into to the nutrient solution, the diameter that the mouth 14 was strengthened in the nutrient solution injection equals with the diameter of nutrient canal 1.
The inner air bag 5 is connected with an inflation pipeline 16 through an inflation inlet 17, the inflation pipeline 16 is arranged on the inner side of the nutrition tube 1, the inflation inlet 17 is formed in the outer wall of the inner nutrition tube 1, one end of the inflation inlet 17 is communicated with the inner side of the inner air bag 5, the other end of the inflation inlet 17 is communicated with an air bag inflation inlet 12, the inner air bag 5 is sleeved on the outer wall of the nutrition tube 1 in a sticking mode, and the outer air bag membrane 4 is arranged on the tube wall of the nutrition tube 1 on the outer side of the inner air bag 5 in a sticking mode. The air bag inflation inlet 12 is arranged on the outer side of the nutrient solution injection connector 13, the air bag inflation inlet 12 is communicated with the inflation pipeline 16, and the outer wall of the nutrient solution injection connector 13 is fixedly connected with the outer wall of the air bag inflation inlet 12 in a sticking mode. The number of the second labeling layers 8 is two, the two second labeling layers 8 are arranged at two ends of the nutrition tube 1 inside the inner air bag 5, edge radioactive particle tubes 19 are arranged at two ends of the radioactive particle limiting tube 6, and the edge radioactive particle tubes 19 are filled with edge position radioactive particles 20. The section of the outer capsule membrane 4 is of a wavy annular structure, and a wavy limiting groove is formed in the outer side of the outer capsule membrane 4.
When the product is used, aiming at an esophagus cancer patient, the bottom end of the nutrition tube 1 is firstly inserted into the esophagus of the patient in a guiding way, so that the inner hole 3 of the nutrition tube at the bottom is ensured to be smooth, and the nutrition tube is placed to the lower side position of a cancer cell tumor to keep continuous and smooth liquid supply. When the X-ray detector is placed downwards, the X-ray detector is marked by the first marking layer 2, and the first marking layer 2 is an X-ray-proof substance and plays a good marking role. Meanwhile, the second marking layer 8 is also opaque to X-rays, so that the lowering position of the outer cyst membrane 4 is just aligned to the cancer cell cyst position when the outer cyst membrane is lowered, and the double second marking layers 8 are adopted for positioning, so that the accuracy is high. When the radioactive particles act, the radioactive particles can act in a segmented manner, the inner wall of the cancer cell cyst is irregular, the inner air sac is filled with gas, then the inner air sac is opened to be in a saturated state, the outer cyst membrane 4 is tightly combined with the inner wall of the tumor, meanwhile, the section of the outer cyst membrane 4 is of a wave annular structure, the outer side of the outer cyst membrane 4 is provided with a wave-shaped limiting groove, the high fit between the outer cyst membrane 4 and the inner wall of the tumor is facilitated, and the drug effect of the radioactive particles 7 is ensured to be exerted.
In the other embodiment, edge radioactive particle tubes 19 are provided at both ends of the radioactive particle confinement tube 6, and the edge radioactive particle tubes 19 are filled with edge position radioactive particles 20. During specific operation, if the longitudinal length of the outer capsule 4 of the product is smaller than that of the tumor, the longitudinal length of the outer capsule 4 is pressed against the inner wall of the tumor after being inflated, the tumor wraps the outer capsule 4 integrally, and the edge radioactive particle tube 19 is designed to be beneficial to overall treatment.
During the whole treatment period, the treatment of one period is completed, the relative position can be moved by moving or rotating the rotating platform 10, the up-and-down movement, the rotation movement at the same position and the like are realized, the efficient fit of the joint surface of the rotating platform and the inner wall of the tumor is ensured, meanwhile, the targeted treatment can be performed according to the severity of the inner wall of the tumor, and the treatment effect is greatly improved.
Claims (6)
1. The utility model provides a sacculus particle bushing system of treatment esophagus cancer, includes nutrition tube (1), sets up at nutrition tube inner hole (3) of nutrition tube (1) one side, sets up at first mark layer (2) of nutrition tube (1) one side tip, sets up at nutrition liquid injection connector (13) of nutrition tube (1) opposite side, installs injection push rod (15) in nutrition liquid injection connector (13), its characterized in that: nutrient solution injection channels (18) communicated with the inner hole (3) of the nutrient tube are arranged in the nutrient solution injection connector (13) and the nutrient tube (1), a nutrient solution injection reinforcing port (14) is arranged at the outer side end of the nutrient solution injection connector (13), the nutrient solution injection connector (13) is connected with a reinforcing connection table (9) through a rotary table (10), the reinforcing connection table (9) is connected with the nutrient tube (1), and a balloon particle sleeve device is arranged on the outer wall of the nutrient tube (1); the balloon particle sleeve device comprises an inner balloon (5) sleeved on the outer wall of a nutrition tube (1), an outer balloon membrane (4) is sleeved on the outer side of the inner balloon (5), a radioactive particle limiting tube (6) is installed between the outer balloon membrane (4) and the inner balloon (5), radioactive particles (7) are filled in the radioactive particle limiting tube (6), the inner balloon (5) is connected with a balloon inflation opening (12) through an inflation pipeline (16), and a second marking layer (8) is arranged on the nutrition tube (1) on the inner side of the inner balloon (5); the section of the outer sac membrane (4) is of a wave annular structure, and the outer side of the outer sac membrane (4) is provided with a wave-shaped limiting groove.
2. A balloon particle cannula system for treating esophageal cancer according to claim 1, wherein: sacculus particle bushing apparatus set up in nutrition pipe (1) between enhancement connection platform (9) and nutrition pipe inner bore (3), enhancement connection platform (9) be cylindrical hollow sleeve structure, the inner wall of enhancement connection platform (9) adopts the mode fixed connection of pasting with the outer wall of nutrition pipe (1), the inboard fixed connection of mode and revolving stage (10) through pasting in the outside of enhancement connection platform (9), the inboard of revolving stage (10) is provided with the through-hole, this through-hole is linked together with nutrient solution injection channel (18), the inboard of revolving stage (10) and nutrient solution injection connector (13) adopts the mode of pasting to be connected, nutrient solution injection enhancement mouth (14) are pasted in the outside of nutrient solution injection connector (13).
3. A balloon particle cannula system for treating esophageal cancer according to claim 1, wherein: strengthen connecting platform (9), revolving stage (10), nutrient solution pours into and strengthens mouth (14) and nutrient solution injection connector (13) structure as an organic whole, evenly be provided with antiskid groove (11) on the outer wall of revolving stage (10), strengthen the diameter of connecting platform (9) and be not less than the diameter of nutrient canal (1), the diameter of revolving stage (10) is not less than the diameter of strengthening connecting platform (9), the diameter of connector (13) is not more than the diameter of nutrient canal (1) is poured into to the nutrient solution, the diameter of strengthening mouth (14) is poured into to the nutrient solution and is equal with the diameter of nutrient canal (1).
4. A balloon particle cannula system for treating esophageal cancer according to claim 1, wherein: the inner air bag (5) is connected with an air charging pipeline (16) through an air charging port (17), the air charging pipeline (16) is arranged on the inner side of the nutrition tube (1), the air charging port (17) is arranged on the outer wall of the inner nutrition tube (1), one end of the air charging port (17) is communicated with the inner side of the inner air bag (5), the other end of the air charging port (17) is communicated with an air bag air charging port (12), the inner air bag (5) is sleeved on the outer wall of the nutrition tube (1) in a sticking mode, and an outer air bag film (4) is arranged on the tube wall of the nutrition tube (1) on the outer side of the inner air bag (5) in a sticking mode.
5. A balloon particle cannula system for treating esophageal cancer according to claim 1, wherein: the outer wall of the nutrient solution injection connector (13) is fixedly connected with the outer wall of the air bag inflation port (12) in a sticking mode.
6. A balloon particle cannula system for treating esophageal cancer according to claim 1, wherein: the number of the second marking layers (8) is two, the two second marking layers (8) are arranged at two ends of the nutrition tube (1) on the inner side of the inner air bag (5), edge radioactive particle tubes (19) are arranged at two ends of the radioactive particle limiting tube (6), and radioactive particles (20) at edge positions are filled in the edge radioactive particle tubes (19).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445326.9A CN107281630B (en) | 2017-06-14 | 2017-06-14 | Balloon particle sleeve system for treating esophageal cancer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445326.9A CN107281630B (en) | 2017-06-14 | 2017-06-14 | Balloon particle sleeve system for treating esophageal cancer |
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| Publication Number | Publication Date |
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| CN107281630A CN107281630A (en) | 2017-10-24 |
| CN107281630B true CN107281630B (en) | 2020-01-07 |
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| CN201710445326.9A Active CN107281630B (en) | 2017-06-14 | 2017-06-14 | Balloon particle sleeve system for treating esophageal cancer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111686364B (en) * | 2020-06-29 | 2022-02-11 | 河南省肿瘤医院 | Colorectal cancer anastomosis supporting treatment device and using method thereof |
| CN113198115B (en) * | 2021-05-19 | 2023-04-11 | 郑州大学第一附属医院 | Feeding type esophageal balloon particle sleeve |
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| CN2778312Y (en) * | 2005-03-29 | 2006-05-10 | 亓久德 | Local comprehensive therapeutic tube for esophagus cancer |
| CN101631590A (en) * | 2007-03-12 | 2010-01-20 | 赛诺克斯有限公司 | Radiation catheter with multilayered balloon |
| EP2219734A1 (en) * | 2007-12-18 | 2010-08-25 | Cytyc Corporation | Selectable multi-lumen brachytherapy devices and methods |
| WO2015023307A1 (en) * | 2012-10-05 | 2015-02-19 | The Regents Of The University Of California | Brachytherapy applicator and methods for generating anisotropic directional radiation profiles |
| CN204840652U (en) * | 2015-07-16 | 2015-12-09 | 焦德超 | Ureter radiotherapy associated drainage catheter |
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2017
- 2017-06-14 CN CN201710445326.9A patent/CN107281630B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2778312Y (en) * | 2005-03-29 | 2006-05-10 | 亓久德 | Local comprehensive therapeutic tube for esophagus cancer |
| CN101631590A (en) * | 2007-03-12 | 2010-01-20 | 赛诺克斯有限公司 | Radiation catheter with multilayered balloon |
| EP2219734A1 (en) * | 2007-12-18 | 2010-08-25 | Cytyc Corporation | Selectable multi-lumen brachytherapy devices and methods |
| WO2015023307A1 (en) * | 2012-10-05 | 2015-02-19 | The Regents Of The University Of California | Brachytherapy applicator and methods for generating anisotropic directional radiation profiles |
| CN204840652U (en) * | 2015-07-16 | 2015-12-09 | 焦德超 | Ureter radiotherapy associated drainage catheter |
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| CN107281630A (en) | 2017-10-24 |
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