CN203001679U - Internal irradiation stent for ureter - Google Patents
Internal irradiation stent for ureter Download PDFInfo
- Publication number
- CN203001679U CN203001679U CN 201220639183 CN201220639183U CN203001679U CN 203001679 U CN203001679 U CN 203001679U CN 201220639183 CN201220639183 CN 201220639183 CN 201220639183 U CN201220639183 U CN 201220639183U CN 203001679 U CN203001679 U CN 203001679U
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- Prior art keywords
- radioactive particle
- ureter
- capsule
- particle filling
- main body
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- Expired - Lifetime
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Abstract
The utility model discloses an internal irradiation stent for a ureter. The internal irradiation stent comprises a main body framework and radioactive particle filling capsules. The radioactive particle filling capsules are fixedly arranged on the main body framework. Each radioactive particle filling capsule is a single-capsule structure in which a radioactive particle is placed, or a long tubular structure in which more than two radioactive particles are placed. Clinical problems are solved, a radioactive particle internal irradiation technology is effectively combined with a metal stent dilating drainage technology, and the internal irradiation stent has the advantages of simple and novel structure, minimally invasive operation, low risk, small patient pain, good curative effects, few complications and broad clinical application prospect.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, and a kind of ureter internal radiation support specifically is used for the synchronous therapeutic of the local targeting internal-radiation therapy of ureter and stricture of ureter dilating drainage.
Background technology
Because the ureter stroke is longer, mutually adjoin with abdominal part and pelvic cavity viscera, in close relations, the lymph node of abdominal part and tumor of pelvic cavity, transfer enlargement etc., easily compressing or invade ureter, cause ureteral obstruction, wherein common with ovarian cancer, rectal cancer, bladder cancer, carcinoma of prostate.Abdomen pelvic malignant patient is except having the protopathy symptom, and the sings and symptoms of urinary tract obstruction depends on position, degree and the development speed that blocks, and the patient can occur that waist is ached, acute kidney angor, oliguria, anuria and the rising of carrying out property of serum creatinine etc.For this type of patient; should clear and definite renal pelvis, dilatation of ureter hydrops situation, ureteral obstruction position and length, then select suitable mode to remove and block, make that urine drainage is unobstructed or the urine turn of tidal stream is effective; renal function protecting has important meaning to improving Quality of Life and extending life.It has been advanced tumor mostly that the compressing of abdomen involved by advanced pelvic carcinoma or lymph node causes the patient of ureteral obstruction, and health is relatively poor, is difficult to tolerate surgery or higher operation risk is arranged, and should adopt processings in simply, Wicresoft, effective drainage method.The ureter bracket implanted treatment is simple to operate, wound is little, patient painful little, drain is reliable, can create conditions for further treatment, now be widely applied in this type of patient's treatment.
Finney used two J ureter rack tubes at first clinically in 1978, development along with the intracavity Urology Surgery, ureter rack tube is made the continuous improvement of material, the range of application of double J pipe constantly enlarges, and expand to rapidly in the minimally-invasive treatment of urinary system benign and malignant diseases, the indwelling tube of double-J wound is little, quality of life is high, be easy to nursing, and the patient is acceptant.
But that desirable internal supporter drainage-tube for ureter must be flexibility is good, have elasticity, internal diameter is large, tube wall is thin, drainage flow is large, self fixation is arranged, can not move up and down autoclave sterilization, to histiocyte avirulence, X-ray can development, aging resistance and anti-shell skin etc.Traditional support tube adopts rubber to make, and because only having 1-2 hole in its end, the abundant drain of Chang Buneng easily causes and exosmoses, and causes ureter periphery fibrosis, and easily deviates from and fouling.The urological surgeon is always at continuous searching can be longer in the urinary tract retention time, the compatibility is good material.The material that at first nineteen seventies uses is silicone, also adopts afterwards other materials such as polyethylene, polyurethane, hydrogel, C-Flex-TPE etc.But because of the prolongation along with the support tube indwelling time, these materials begin to affect urothelium and urine composition, cause forming coating, bacterial growth and infecting around support tube, some even forms urine salt crystallization or calculus around support tube, so the built-in time of support tube is mostly limited.
The self-inflated nick-eltitanium alloy stent that occurs in recent years has the advantages such as shape memory characteristic, super-elasticity because of nitinol alloy wire, be widely used in the treatment of ureter malignant obstruction, the bore that produces after its expansion is large, drain is unobstructed, and limited stent length is unlikely to be affected the ureteral wriggling of normal reach and urinate; Support is absorbed in ureter wall and can be shifted; Do not have the rack surface deposition of foreign material yet and cause calculus and infection.Especially elderly and infirm once inserts and gets final product, and need not to change support and the misery of bringing and trouble, few intercurrent disease.
But along with the application of new technique, the application of present metal rack has had certain limitation, only has the supporting drainage effect as existing support, tumor tissues is not had therapeutical effect, thereby affected the late result of ureter malignant obstruction.Therefore, if can carry out the local internal-radiation therapy of targeting in the support expansion, can lower the toxic and side effects of whole body chemicotherapy, can realize that again the targeting internal radiation suppresses the growth of tumor thing, can improve ureter bracket patency rate and survival, ureter bracket and internal radiation are had complementary advantages.
Conventional metal ureter bracket does not have to carry the function of radioactive particle due to its body, so only can carry out dilating drainage to stricture of ureter merely, as the method for palliative treatment, combine to synchronize with rack body and implant and general supporting structure also can't be generally diameter the radioactive particle of 0.8 mm.
The utility model content
The utility model purpose: technical problem to be solved in the utility model is for the deficiencies in the prior art, and a kind of ureter internal radiation support is provided.
In order to solve the problems of the technologies described above, the utility model discloses a kind of ureter internal radiation support, comprise main body framework and radioactive particle filling capsule, radioactive particle filling capsule is fixed on main body framework.
In this utility model, described radioactive particle loads single capsule structure that capsule is set to place a radion, perhaps places the long tubular structure of two above radions.
In this utility model, described radioactive particle filling capsule is more than one, and distributing is arranged on main body framework.
In this utility model, described radioactive particle filling capsule is spring tubulose, tubulose, bag-shaped shape.
In this utility model, the internal diameter of described radioactive particle filling capsule and entrained particle external diameter match; The one opening-like attitude of end of radioactive particle filling capsule, the other end for sealing or less than the hatch frame of radioactive particle external diameter.
In this utility model, the two ends of described main body framework are horn mouth or spherical port or rim of a cup.
In this utility model, described main body framework is the main body framework that is formed by the nitinol alloy wire braiding.
In this utility model, described radioactive particle filling capsule is the bourdon tube of medical metal Wire-winding, the perhaps long bobbin structure of medical high polymer, and perhaps the radioactive particle made of artificial vascular membrane loads capsule.
In this utility model, the filling capsule of radioactive particle can be connected by modes such as stitching, welding with mesh skeleton, is provided with opening in filling capsule upper end and loads radioactive particle for the doctor.The rack body skeleton is that the nitinol alloy wire braiding forms latticed skeleton.
Inner surface and/or the outer surface of the rack body skeleton described in this utility model can be provided with coating layer, and as overlay film, described coating layer is the materials such as medical grade silicon rubber, expanded PTFE or polyurethane with good biocompatibility.
This utility model is by this particle filling capsule structure, and make up fixing with the rack body skeleton, become as a whole, and with the radioactive particle particle filling capsule of packing into, the radioactive particle that will have a therapeutical effect is synchronizeed with support and is implanted to the stricture of ureter lesion, stricture of ureter is carried out dilating drainage simultaneously plesioradiotherapy is carried out at ureter malignant obstruction position, realized simultaneously the dilating drainage of local internal-radiation therapy and narrow positions.
Beneficial effect: this utility model has solved a clinical difficult problem, and with radioactive particle internal radiation and the effective combination of metal rack dilating drainage technology, has novelty simple in structure, Micro-operation, risk is low, patient is painful little, good effect, the advantage of few intercurrent disease has boundless potential applicability in clinical practice.
Particularly, the utlity model has following advantage: a, this utility model loads capsule with radioactive particle and becomes as a whole with holder combination, thereby the less inserter of can packing into satisfies the requirement of Present Medical Micro-operation, can once perform the operation and complete, operation technique is convenient, Wicresoft, and risk is low, painful little, the surgery cost of patient also can effectively reduce.The ureter bracket that makes implantation carry radioactive particle becomes possibility, and risk is low, and patient's misery is little;
B, syndeton and the design of radioactive particle filling capsule facilitate the doctor to load radioactive particle in operating process, thereby alleviate doctor's suffered radiation in operation process;
C, radioactive particle filling capsule can carry out different arranging to radioactive particle according to doctor's clinical requirement, thereby satisfy, the tumor of different parts are carried out internal-radiation therapy, reduce simultaneously the damage to normal surrounding tissue.
Description of drawings
Below in conjunction with the drawings and specific embodiments, this utility model is done further illustrating, above-mentioned and/or otherwise advantage of the present utility model will become apparent.
Fig. 1 is the structural representation of support of the present utility model.
Fig. 2 is the structural representation of radioactive particle filling capsule of the present utility model (spring tubulose list capsule).
Fig. 3 is the structural representation of radioactive particle filling capsule of the present utility model (spring pipe range tubular).
Fig. 4 is the structural representation of a kind of radioactive particle filling capsule of the present utility model (tubulose list capsule).
Fig. 5 is the structural representation of a kind of radion filling capsule of the present utility model (the long tubular of tubing).
Fig. 6 is the structural representation of rack body skeleton of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model discloses a kind of ureter internal radiation support mainly is comprised of radioactive particle filling capsule 2 and rack body skeleton 1, wherein radioactive particle loads the helical spring tubular construction that capsule is formed by the nitinol alloy wire coiling, radioactive particle filling capsule 2 is fixed on rack body skeleton 1 outer surface, can be for single capsule structure, as Fig. 2 and shown in Figure 4; Also can be long tubular structure, as shown in Figure 3 and Figure 5.Radioactive particle filling capsule 2 can have a lot of quantity, even distribution or mal-distribution are fixed on the surface of rack body skeleton 1 as requested, be used for filling radioactive particle 3, radioactive particle filling capsule upper end open lower end closed is used for filling radioactive particle 3.Rack body skeleton 1 is to form cylindrical mesh skeleton by the nitinol alloy wire braiding, as shown in Figure 6.
During use, doctor's radioactive particle 3 of at first packing in radioactive particle filling capsule 2, radioactive particle 3 can be selected
103Pd,
60Co,
199Au,
192Ir,
125The medical radioactive material commonly used such as I, and then the support integral body that will install radioactive particle 3 reloads in inserter, releasing bracket under seal wire guiding or Endoscope-assisted, shape memory characteristic due to Nitinol, support accurately is fixed in the stricture of ureter place, carry out radiotherapy thereby carry 3 pairs of tumors of radioactive particle, while narrow also being strutted by the support expansion herein keeps drain unobstructed.
A kind of ureter internal radiation support includes radioactive particle filling capsule 2 and rack body skeleton 1 forms, as shown in Figure 1, cylindrical mesh skeleton 2 and radioactive particle filling capsule 2 link together by modes such as stitching, bonding, bindings, radioactive particle filling capsule 2 is comprised of Medical high molecule pipe material or medical metal tubing, an end opening other end sealing on tubing, the radioactive particle 3 of packing into, single capsule structure as shown in Figure 4.Rack body skeleton 1 is the cylindrical mesh skeleton that is woven into by nitinol alloy wire, as shown in Figure 6.
During use, the doctor fills radioactive particle 3 in 2 li, particle filling capsule in advance, and radioactive particle 3 can be selected
103Pd,
60Co,
199Au,
192Ir,
125The medical radioactive material commonly used such as I, and then the rack body skeleton 1 that will carry radioactive particle filling capsule 2 and install radioactive particle 3 reloads in inserter, releasing bracket under seal wire guiding or Endoscope-assisted, and then under seal wire guiding or Endoscope-assisted releasing bracket, shape memory characteristic due to Nitinol, support is implanted in the stricture of ureter place, carry out radiotherapy thereby carry 3 pairs of tumors of radioactive particle, while narrow also the expansion by support herein struts and keeps drain unobstructed.
A kind of ureter internal radiation support includes radioactive particle filling capsule 2 and rack body skeleton 1 forms, as shown in Figure 1, cylindrical mesh skeleton 2 and radioactive particle filling capsule 2 link together by modes such as stitching, bondings, the long tubular that radioactive particle filling capsule 2 is made by the medical films material forms, the radioactive particle 3 of packing into, as shown in Figure 5.Rack body skeleton 1 is the cylindrical mesh skeleton that is woven into by nitinol alloy wire, as shown in Figure 6.
During use, at first the doctor packs radion 3 in the long tubular particle filling capsule 2 of being made by the medical films material, and radioactive particle 3 can be selected
103Pd,
60Co,
199Au,
192Ir,
125The medical radioactive material commonly used such as I, and then the rack body skeleton 1 that will carry radioactive particle filling capsule 2 and install radioactive particle 3 is packed in inserter, releasing bracket under seal wire guiding or Endoscope-assisted, shape memory characteristic due to Nitinol, support accurately is fixed in the stricture of ureter place, carry out internal-radiation therapy thereby carry 3 pairs of tumors of radioactive particle, while narrow also the expansion by support herein struts and keeps drain unobstructed.
This utility model provides a kind of ureter internal radiation support; method and the approach of this technical scheme of specific implementation are a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from this utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.In the present embodiment not clear and definite each ingredient all available prior art realized.
Claims (8)
1. a ureter internal radiation support, is characterized in that, comprises main body framework (1) and radioactive particle filling capsule (2), and radioactive particle filling capsule (2) is fixed on main body framework (1).
2. ureter internal radiation support according to claim 1, is characterized in that, described radioactive particle loads single capsule structure that capsule (2) is set to place a radion, perhaps places the long tubular structure of two above radions.
3. ureter internal radiation support according to claim 1, is characterized in that, described radioactive particle filling capsule (2) is more than one, and distributing is arranged on main body framework (1).
4. ureter internal radiation support according to claim 1, is characterized in that, described radioactive particle filling capsule (2) is spring tubulose, tubulose, bag-shaped shape.
5. ureter internal radiation support according to claim 1, is characterized in that, the internal diameter of described radioactive particle filling capsule (2) and entrained particle external diameter match; The one opening-like attitude of end of radioactive particle filling capsule (2), the other end for sealing or less than the hatch frame of radioactive particle external diameter.
6. ureter internal radiation support according to claim 1, is characterized in that, the two ends of described main body framework (1) are horn mouth or spherical port or rim of a cup.
7. ureter internal radiation support according to claim 1, is characterized in that, described main body framework (1) is the main body framework (1) that is formed by the nitinol alloy wire braiding.
8. ureter internal radiation support according to claim 1, is characterized in that, described radioactive particle filling capsule (2) is the bourdon tube of medical metal Wire-winding, perhaps the long bobbin structure of medical high polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639183 CN203001679U (en) | 2012-11-28 | 2012-11-28 | Internal irradiation stent for ureter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639183 CN203001679U (en) | 2012-11-28 | 2012-11-28 | Internal irradiation stent for ureter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203001679U true CN203001679U (en) | 2013-06-19 |
Family
ID=48593317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220639183 Expired - Lifetime CN203001679U (en) | 2012-11-28 | 2012-11-28 | Internal irradiation stent for ureter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203001679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030394A (en) * | 2015-07-24 | 2015-11-11 | 南京微创医学科技有限公司 | Device capable of carrying internal irradiation particles and manufacturing die and method of die |
| CN106974752A (en) * | 2017-04-06 | 2017-07-25 | 张西坤 | Spiral particle support |
-
2012
- 2012-11-28 CN CN 201220639183 patent/CN203001679U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030394A (en) * | 2015-07-24 | 2015-11-11 | 南京微创医学科技有限公司 | Device capable of carrying internal irradiation particles and manufacturing die and method of die |
| CN106974752A (en) * | 2017-04-06 | 2017-07-25 | 张西坤 | Spiral particle support |
| CN106974752B (en) * | 2017-04-06 | 2018-11-23 | 张西坤 | Spiral particle bracket |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200020 No. 149 South Chongqing Road, Shanghai, Luwan District Patentee after: RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG University SCHOOL OF MEDICINE Patentee after: Micro-Tech (Nanjing) Co.,Ltd. Address before: 200020 No. 149 South Chongqing Road, Shanghai, Luwan District Patentee before: RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG University SCHOOL OF MEDICINE Patentee before: MICRO-TECH (NANJING) Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180412 Address after: 200000 Chongqing South Road, Luwan District, Luwan District, Shanghai Patentee after: RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG University SCHOOL OF MEDICINE Address before: 200020 No. 149 South Chongqing Road, Shanghai, Luwan District Co-patentee before: Micro-Tech (Nanjing) Co.,Ltd. Patentee before: RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG University SCHOOL OF MEDICINE |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
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| CX01 | Expiry of patent term |