CN2699854Y - Load mode self-distend intracavity stent for therapy - Google Patents
Load mode self-distend intracavity stent for therapy Download PDFInfo
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- CN2699854Y CN2699854Y CNU2004200291174U CN200420029117U CN2699854Y CN 2699854 Y CN2699854 Y CN 2699854Y CN U2004200291174 U CNU2004200291174 U CN U2004200291174U CN 200420029117 U CN200420029117 U CN 200420029117U CN 2699854 Y CN2699854 Y CN 2699854Y
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- intracavity
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Abstract
The utility model belongs to the technical field of medical equipment, in particular to a load mode self-distend intracavity stent for therapy of niti-shaped memorial alloy (SMA). The niti-shaped memorial alloy (SMA) is woven into the round tubular stent of the network structure, the bell mouth on the both ends of the stent are mushroom spherical shapes, the epitheca of the stent is provided with a medical film which is provided with favorable biocompatibility and better elasticity, and the outer surface of the medical film is fixed with an anther sac which is loaded with medicant; the outer surface of the anther sac is accompanied with a layer of silica ge thin film, and the medical film on the epitheca of the stent and the silica ge film are formed with sandwich layer. The anther sac can load with various of treat particles and other remedial medicant. When the stent is inserted into human body, the obstruction position of the tube cavity is supported and distended, the therapeutic action on the lesion is acted, the illness is eliminated, and a new medical scheme for the problem of disease treat of the human body cavity is provided. The utility model can be widely used for each functional system of human body such as digestion, respiration, urination, and intestinal tract, etc; the load mode self-distend intracavity stent for therapy has safety, non side reaction, convenient operation, and favorable curative effect. The load mode self-distend intracavity stent is a new development for the technology of stent, and can be completely substituted for the present stent product.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly a kind of niti-shaped memorial alloy (SMA) load mode therapeutic self expandable intracavity stent.
Background technology
Current medical circle clinical practice both at home and abroad the various body cavity inner supports that support dilating effect are worked at the luminal stenosis position, only play dilating effect supported at the luminal stenosis position, defeated at short notice siphunculus chamber delays life, does not all have the treatment function.And can not treat protopathy, more can not effectively save life.Therefore this support can not satisfy the medical development needs.
The utility model content
This utility model purpose is to overcome the deficiency in the prior art, be uniform-distribution with medicine bag on a kind of support and provide, can load various treatment particles or other treatment medicine, can support expansion luminal stenosis region of obstruction, can play the body cavity inner support of therapeutical effect again pathological changes.
For realizing that the technical scheme that the purpose of this utility model adopted is: a kind of load mode therapeutic self expandable intracavity stent, it is characterized in that: be compiled into cancellated cylinder-shaped bracket by niti-shaped memorial alloy (SMA) silk material, the two ends horn mouth is spherical for mushroom, support table wall is provided with one deck and has good biocompatibility and better elastic medical film, its medical film outer surface is fixed with the medicine bag of drug loading, its medicine bag outer surface is with one deck silica gel thin film, and medical film of support table wall and silica gel thin film form interlayer.
It is 0.5mm that described medical film of support table wall and silica gel thin film form the interlayer spacing.
Described medicine bag is shaped as tubulose or lamellar, also can require to select matched shape according to medicine.
Described medicine bag outer wall is provided with the laser micropore of being convenient to drug release and infiltration with corresponding silica gel thin film.
This utility model has following advantage and beneficial effect under the configuration of excellent structure:
1. the design's support adopts the niti-shaped memorial alloy silk material with shape memory effect, super-elasticity and excellent biological compatibility to make, and is ideal engineering in medicine material.When support is inserted human body, at room temperature stent diameter is compressed earlier so that the delivery device of packing into smoothly, after inserting the release of patient's diseased region, support can strut immediately, self expandable struts tube chamber to original specification shape, make medicine closely contact diseased region, the close contact treatment does not influence normal surrounding tissue.According to clinical requirement, can produce different size and size, be fit to the function corresponding tube chamber and use.
2. fused silicon trunk glued membrane of rack surface or knitting film all have excellent biological compatibility and elasticity preferably, are fit to medical application, and glued membrane prevention tumor is grown to intracavity.
3. medicine bag diameter (or thickness) is slightly less than the drug particle diameter, generally is not more than Φ 0.7mm, does not come off to guarantee that drug particle is closely fixing.Medicine bag outer wall laser micropore is to guarantee that medicine fully discharges and permeates.
4. medicine bag outer wall thin film is by self flexible fastening medicine bag, and outer surface is smooth smooth, and it is unblocked to guarantee that support is inserted process, does not decrease medicine.
5. the design's curative drug support can solve that body lumen is narrow to be blocked, and can treat intracavity lesion again, and medicine is combined application with support, is a disease treatment difficult problem in the body cavity, and a kind of new interventional therapy scheme is provided, and stent applications is brought up to new level.
The design's support load the radiotherapy particle clinical practice in treatment esophageal tumor, curative effect highly significant.This support can make the radiotherapy particle accurately place diseased region, and the delta ray that particle is emitted closely continues to kill and wound cancerous cell for a long time, does not damage normal surrounding tissue until killing cancerous cell, and effect is better than existing external exposure radiotherapy.
7. the radiotherapy particle that loads of the design's support, chemotherapy particle or other treatment medicine, all belong to the close contact treatment, the required radiological dose of tumor and the spatial distribution that are calculated according to tumor planned treatment system (TPS), medicine bag arranging on support is distributed with accurate coupling with " TPS " system is calculated, has good meterological and guarantees.The operator is not had influence, and environmentally safe has been avoided conventional radiotheraphy or injury and side reaction that chemotherapy produced.
8. the design's support is disposable interventional therapy, operating time is short, wound is little, patient's no pain, treatment cycle is short, and instant effect is for new prospect has been opened up in disease treatment in the body cavity, being the new breakthrough of the interior disease treatment support technology of body cavity now, is the renewal product of ideal existing body cavity inner support.
The clinical esophageal tumor that is used for of the design's support is treated, and the short term effect highly significant is that domestic first medicine the combination with support is used in the body cavity, makes the application of body cavity inner support bring up to new level.The design's support can be widely used in each function systems of human body such as digestion, breathing, urinary system, intestinal, and good effect is safe and reliable, no side reaction.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the skiagraph of support integral body.
Fig. 3 is a drug stent generalized section in other tube chambers.
The specific embodiment
Among the figure: 1 support, 2 thin film, 3; Laser micropore, 4 static lines, spacing between 5 outer membranes, 6 medicine bags, 7 medical films.
See also shown in Fig. 1-2, a kind of load mode therapeutic self expandable intracavity stent is compiled into cancellated cylinder-shaped bracket 1 by niti-shaped memorial alloy silk material, and the two ends horn mouth is spherical for mushroom, having shape memory effect and super-elasticity, is ideal engineering in medicine material.Support table wall is provided with one deck and has good biocompatibility and better elastic silicon trunk glue or knitted medical film 7, its medical film 7 outer surfaces are fixed with the medicine bag 6 of drug loading, with one deck silica gel thin film 2, the medical film 7 of support table wall forms interlayer with silica gel thin film 2 on its medicine bag 6.Spacing 0.5mm between its interlayer.Medicine bag diameter (or thickness) is slightly less than the drug particle diameter, generally is not more than Φ 0.7mm, does not come off to guarantee that drug particle is closely fixing.Medicine bag is shaped as tubulose or lamellar, also can require to select matched shape according to medicine.Described medicine bag 6 outer walls are provided with the laser micropore 3 of being convenient to drug release and infiltration with corresponding silica gel thin film 2.Medicine bag outer wall laser micropore is to guarantee that medicine fully discharges and permeates.Silica gel thin film 2 between its medicine bag and the medicine bag is provided with static line 4.
Fig. 3 is a drug stent generalized section in other tube chambers.Among the figure, body lumen wall 10 loads by niti-shaped memorial alloy silk material and is compiled into drug stent in other tube chambers that cancellated cylinder-shaped bracket 11, medicine bag 12 and laser micropore 13 constitute.Be used for the treatment of the tube chamber pathological changes.
Operation principle is: when this utility model uses, the medicine bag of at first medicine being packed into, utilize the shape memory effect and the super-elasticity of niti-shaped memorial alloy support, at room temperature support can be out of shape arbitrarily, and stent diameter is compressed in the delivery device of packing into below the Φ 6mm, after inserting accurate location, human lesion position, when reaching human body temperature, support spontaneously returns to original shape immediately, and pathological lumen narrow or that block is strutted, and make medicine closely contact diseased region, implement the close contact treatment.Do not influence normal surrounding tissue.According to clinical requirement, can produce different size and size, be fit to the function corresponding tube chamber and use.
This utility model also is applicable to drug stent in other tube chambers, is that domestic first medicine the combination with support is used in the body cavity, makes the application of body cavity inner support bring up to new level.The design's support can be widely used in each function systems of human body such as digestion, breathing, urinary system, intestinal, and good effect is safe and reliable, and no side reaction is easy to operate.For a disease treatment difficult problem in the body cavity provides a kind of new medical mode.Can replace existing support product fully.
Claims (5)
1. load mode therapeutic self expandable intracavity stent, it is characterized in that: be compiled into cancellated cylinder-shaped bracket by niti-shaped memorial alloy silk material, the two ends horn mouth is spherical for mushroom, support table wall is provided with one deck and has good biocompatibility and better elastic medical film, its medical film outer surface is fixed with the medicine bag of drug loading, its medicine bag outer surface is with one deck silica gel thin film, and medical film of support table wall and silica gel thin film form interlayer.
2. according to right 1 described load mode therapeutic self expandable intracavity stent, it is characterized in that: it is 0.5mm that described medical film of support table wall and silica gel thin film form the interlayer spacing.
3. according to right 1 described load mode therapeutic self expandable intracavity stent, it is characterized in that: described have good biocompatibility and better elastic medical film be silicon trunk glued membrane or knitting film.
4. according to right 1 described load mode therapeutic self expandable intracavity stent, it is characterized in that: described medicine bag is shaped as tubulose or lamellar, also can require to select matched shape according to medicine.
5. according to right 1 described load mode therapeutic self expandable intracavity stent, it is characterized in that: described medicine bag outer wall is provided with the laser micropore of being convenient to drug release and infiltration with corresponding silica gel thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200291174U CN2699854Y (en) | 2004-06-07 | 2004-06-07 | Load mode self-distend intracavity stent for therapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200291174U CN2699854Y (en) | 2004-06-07 | 2004-06-07 | Load mode self-distend intracavity stent for therapy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699854Y true CN2699854Y (en) | 2005-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200291174U Expired - Fee Related CN2699854Y (en) | 2004-06-07 | 2004-06-07 | Load mode self-distend intracavity stent for therapy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699854Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938158A (en) * | 2018-07-23 | 2018-12-07 | 上海市第人民医院 | A kind of load medicine intravascular stent based on nano-medicament carrier |
| CN109512546A (en) * | 2018-09-29 | 2019-03-26 | 北京航空航天大学 | Overlay film frame and preparation method thereof |
| US10596021B2 (en) | 2016-12-23 | 2020-03-24 | Ganz Brake, Llc | Obesity treatment devices, systems, and methods |
| CN113303945A (en) * | 2021-07-13 | 2021-08-27 | 上海市东方医院（同济大学附属东方医院） | Esophagus support device with drug loading and shaping functions |
| US11464660B2 (en) | 2016-12-23 | 2022-10-11 | Ganz Brake, Llc | Obesity treatment devices, systems, and methods |
-
2004
- 2004-06-07 CN CNU2004200291174U patent/CN2699854Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10596021B2 (en) | 2016-12-23 | 2020-03-24 | Ganz Brake, Llc | Obesity treatment devices, systems, and methods |
| US11464660B2 (en) | 2016-12-23 | 2022-10-11 | Ganz Brake, Llc | Obesity treatment devices, systems, and methods |
| CN108938158A (en) * | 2018-07-23 | 2018-12-07 | 上海市第人民医院 | A kind of load medicine intravascular stent based on nano-medicament carrier |
| CN109512546A (en) * | 2018-09-29 | 2019-03-26 | 北京航空航天大学 | Overlay film frame and preparation method thereof |
| CN109512546B (en) * | 2018-09-29 | 2021-05-04 | 北京航空航天大学 | Covered stent and manufacturing method thereof |
| CN113303945A (en) * | 2021-07-13 | 2021-08-27 | 上海市东方医院（同济大学附属东方医院） | Esophagus support device with drug loading and shaping functions |
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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 |