CN203988237U - Overlay film basket type ureter stone taking device - Google Patents
Overlay film basket type ureter stone taking device Download PDFInfo
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- CN203988237U CN203988237U CN201420388328.0U CN201420388328U CN203988237U CN 203988237 U CN203988237 U CN 203988237U CN 201420388328 U CN201420388328 U CN 201420388328U CN 203988237 U CN203988237 U CN 203988237U
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- basket
- ureter
- calculus
- taking device
- plugging film
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Abstract
This utility model relates to a kind of overlay film basket type ureter stone taking device, it is provided with conduit and seal wire, the far-end of described seal wire is provided with the basket silk that shape memory and elastic material are made, the far-end of described basket silk comes together in a place and forms basket, on described basket, be fixed with plugging film, described plugging film is moulded pocketed in advance; Under using state, the curved shape of described basket silk, described plugging film is strutted by basket silk; Under unused state, described basket silk and plugging film are all accommodated in conduit.Ureter stone taking device of the present utility model is easy to insert ureter, can not promote calculus drives in the wrong direction and causes ureter wall damage to kidney, and shutoff ureter completely, effectively prevent that calculus and calculus fragment are poured current and return in kidney, drag get stone process not yielding and friction ureter wall, the whole calculus of the disposable taking-up of energy, reach efficient calculus removing object.
Description
Technical field
This utility model relates to medical instruments field, specifically, relates to a kind of overlay film basket type ureter stone taking device.
Background technology
Urinary system calculus sickness rate, up to 5%-10%, is found in any position of kidney, bladder, ureter and urethra, taking kidney and ureteral calculus as common.Ureteroscope lithotrity is carried out rubble through human body natural's tract, has advantages of that Wicresoft and rubble are definite, is one of primary treatment means of current ureteral calculus.But at present also there is certain deficiency in ureteroscope lithotrity: 1. in ureter, epimere calculus and calculus fragment be easily poured in the recoil strength refunds kidney of current or rock breaking tool; 2. effective and rapid ground of the intraluminal residual calculus chip shortage of ureter mode is taken out.
Be to prevent recoiled the back important means of kidney of ureteral calculus by blockade ureteral calculus top of instrument, also have clinically at present some ureter stoppers, this type of calculus is stopped instrument and also has concurrently the function of taking-up calculus under normal circumstances.But still there is certain shortcoming in these ureter stoppers in actual use.
Calculus catching net-like means is that at present the most frequently used calculus is stopped taking-up instrument, thereby its rear distraction above leap calculus reticulates the effect that prevents that calculus chip from upwards drifting about of playing, and meanwhile, calculus catching net-like means, as getting lapicide's tool, is caught little calculus chip take out.But it is limited that calculus catching net-like means is got the amount of stone at every turn, often need repeatedly to enter mirror, mirror is entered in water filling repeatedly can increase the risk of residual chip drift; In addition, calculus catching net-like means can not seal ureter tube chamber completely, the probability that still exists calculus to slip through the net; Moreover the calculus fin in calculus catching net-like means is easily extruded from basket hole, drag while getting stone and easily scratch ureter wall, severe patient leads to complications.
The another kind mode of blockading is by diaphragm or sacculus, ureter tube chamber to be sealed as much as possible completely.For example Chinese patent literature CN 200910057068. 2, open day 2009.10.14, the plugging device of barrier in a kind of shutoff body cavity is disclosed, described plugging device comprises a seal wire, a conduit, a plug, and described seal wire one end is through conduit and plug cavity, and described plug far-end and seal wire are fixed, tractive seal wire near-end, the plug launching, by axial compression, forms bolt shape plug, and described plug is flat membranaceous plug.This device of blockading prevents from moving in calculus by forming bolt shape plug, and after lithotrity, can utilize the device of blockading that multiple calculus chips are dragged to bladder simultaneously.But, it can not be by complete ureter tube chamber shutoff, particularly in the process that drags calculus, device form is easily because water filling in endoscopic working channel changes, cause calculus from slippage between device and ureter wall, or blockade device incarceration in ureter because rubble quantity makes greatly calculus and this, there is the risk of damage mucous membrane of ureter.In addition, often volume is bigger than normal for existing membranaceous blockade device or sacculus, in put procedure be not as convenient as calculus catching net-like means, more easily by calculus fight back kidney.
In sum, need badly a kind of shutoff completely, to get stone convenient, not yielding and do not damage ureter wall, place convenient simultaneously and be difficult for causing the ureter stone taking device of calculus displacement while dragging calculus, but have not been reported about such device at present.
Summary of the invention
The purpose of this utility model is for deficiency of the prior art, and a kind of overlay film basket type overlay film basket type ureter stone taking device is provided.
For achieving the above object, the technical scheme that this utility model is taked is:
A kind of overlay film basket type overlay film basket type ureter stone taking device, be provided with conduit and seal wire, the far-end of described seal wire is provided with basket silk, and the far-end of described basket silk comes together in a place and forms basket, on described basket, be fixed with plugging film, described plugging film is moulded pocketed in advance; Under using state, the curved shape of described basket silk, described plugging film is strutted by basket silk.
It is outside or inner that described plugging film is fixed on basket silk, or be embedded in the middle of basket silk.
The transverse section of described plugging film diameter maximum and the transverse section of basket diameter maximum are at grade.
The maximum gauge of the transverse section of described basket is 3-5mm.
Described plugging film is consistent with basket distal portions shape.
Described basket distal portions and plugging film are hemispherical or semielliptical shape.
Under unused state, described basket silk and plugging film are all accommodated in conduit.
Described basket silk is that shape-memory material is made.
The near-end of described conduit is provided with modular catheter, and the far-end of described seal wire is provided with seal wire handle, and described modular catheter and seal wire handle are provided with the screw thread of coupling.
This utility model advantage is:
1, described basket silk forms basket, and basket outside, inside or centre are fixed with plugging film, basket, plugging film transverse section are consistent with people's ureter cross-sectional diameter or slightly large, so thoroughly shutoff ureter tube chamber, and under the supporting role of basket silk, the plugging film shape that can hold its shape well, can not overturn because of perfusion current, further be difficult for occurring calculus slippage or incarceration in ureteral situation, simultaneously can be by calculus and the disposable whole taking-ups of rubble, quickness and high efficiency;
2, described plugging film is consistent with basket distal portions shape, can adopt hemispherical or semielliptical shape, so lithogenous spatial accommodation of shape, and under the position-limiting action of basket silk and plugging film, the corner angle of calculus can directly not contact with ureter wall, effectively avoid postoperative complication;
3, the transverse section of described plugging film diameter maximum and the transverse section of basket diameter maximum at grade, so can ensure the plugging film maximum of dehiscing, the tightst with ureter wall laminating, further guarantee the tightness of shutoff;
4, described basket silk is shape memory metal silk, described plugging film is composite thin film, all can be shrunk to very small size, be contained in conduit, correspondingly can reduce conduit diameter, so be convenient to inserting of this utility model ureter stone taking device, can not promote the calculus kidney that drives in the wrong direction back, also easy damaged ureter wall not.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of overlay film basket type ureter stone taking device of the present utility model.
Accompanying drawing 2 is the enlarged drawings of A in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention provided by the invention is elaborated.
The Reference numeral and the ingredient that in accompanying drawing, relate to are as follows:
1. conduit 2. seal wires
3. basket silk 31. first basket silks
32. second basket silk 33. embeded slots
4. plugging film 5. modular catheters
51. first screw thread 6. seal wire handles
61. second screw thread 7. baskets
embodiment 1
Please refer to Fig. 1, Fig. 1 is the structural representation of overlay film basket type ureter stone taking device of the present utility model.Described ureter stone taking device is provided with conduit 1, seal wire 2, basket silk 3 and plugging film 4.Described conduit 1 is cylindrical, hollow body, and the periphery of near-end is provided with modular catheter 5, and the inwall of described modular catheter 5 near-ends is provided with the first screw thread 51.Described seal wire 2 is a fine filaments, through the inside of conduit 1.The near-end of seal wire 2 is provided with seal wire handle 6, and the outside of described seal wire handle 6 far-ends is provided with the second screw thread 61.The second described screw thread 61 mates mutually with the first described screw thread 51, can seal wire 2 is fixing with conduit 1 after screwing.The far-end of described seal wire 2 is provided with basket silk 3.
Please refer to Fig. 2, Fig. 2 is the enlarged drawing of A in Fig. 1.Described basket silk 3 has the six roots of sensation, and the near-end of every basket silk 3 and seal wire 2(are not shown) far-end fix; The two bifurcateds of distal section of basket silk 3 are the first basket silk 31 and the second basket silk 32, between the first described basket silk 31 and the second basket silk 32, form embeded slot 33.The first basket silk 31 far-ends of six roots of sensation basket silk 3 converge and are fixed on a bit, and the far-end of the second basket silk 32 of six roots of sensation basket silk 3 equally also converges and is fixed on a bit.Described plugging film 4 is embedded in the embeded slot 33 of six roots of sensation basket silk 3.Under using state, the far-end of six roots of sensation basket silk 3 reverts to curve-like, the common basket 7 that forms pocketed, described plugging film 4 is softened simultaneously, shape after plugging film 4 struts is identical with the curve form that the embeded slot 33 of all basket silks 3 forms jointly, consistent with the shape of basket 7 distal portions.The transverse section of described plugging film 4 diameter maximums and the transverse section of basket 7 diameter maximums are at grade.
It should be noted that:
Ureter stone taking device of the present utility model is under unused state, also while dispatching from the factory, described basket silk 3 and plugging film 4 are all accommodated in the cavity of conduit 1 far-end, and basket silk 3 is gathered into a branch of under the restriction of conduit 1 cavity, and plugging film 4 also fold is gathered into a branch of.
Described basket silk 3 is for having shape memory and hyperelastic material is made, as memory wire, concrete as Ti-Ni alloy material, discharging in conduit 1 cavity, it can launch to revert to curve shape naturally, the basket 7 that basket silk 3 forms is for fixing and maintain the shape of plugging film 4, ensures that itself and ureter wall fit, and can not be out of shape while dragging calculus.The quantity of described basket silk 3 is not limited only to the present embodiment, can be also three, four, five, seven, eight etc. some, does not stop that rubble enters as long as guarantee to form the density degree that basket effectively supports plugging film 4 and basket silk.Described basket silk 3 and the fixed form of plugging film 4 are also not limited only to the present embodiment, can also be that plugging film 4 is coated and fixed on the outside of basket silk 3 or attaches the inside of being fixed on basket silk 3, but preferably plugging film 4 is embedded in basket silk 3, so can ensure that the shape of plugging film 4 is not subject to the impact of any external force.Described plugging film 4 can be the materials such as TPU, Pebax, FEP, ETFE, TPFE, is fashioned in advance pocketed, preferably consistent with basket distal portions shape.Preferably, the shape of the distal portions of described basket 7 and plugging film 4 is hemispherical or semielliptical shape.The cross-sectional design one-tenth of described plugging film 4 diameter maximums and the transverse section of basket 7 diameter maximums at grade, its objective is that the opening that ensures plugging film 4 under using state reaches maximum, tightly fit with ureter wall, and more fully shutoff calculus.Described basket 7, the maximum gauge of plugging film 4 transverse section are preferably 3-5mm, with consistent with people's ureter cross-sectional diameter or be as the criterion slightly greatly, and shutoff rubble so up hill and dale, and by disposable rubble whole taking-ups.Described conduit 1 can be accommodated in intracavity by basket silk 3 and plugging film 4, in the time inserting ureter stone taking device of the present utility model, can get around easily calculus, is difficult for causing calculus displacement, also can not damage ureter wall.Described seal wire 2 is for manipulating storage and the release of basket silk 3 and plugging film 4.Described modular catheter 5 and seal wire handle 6 are provided with the screw thread matching each other, and when ureter stone taking device of the present utility model reaches behind target location, conduit 1 and seal wire 2 can be fixed, thereby guarantee basket 7 and plugging film 4 are indeformable.Described " near-end " refers to nearer one end of distance patient in operation process, and described " far-end " refers to distance patient one end far away in operation process.
The using method of ureter stone taking device of the present utility model is as follows: when ureteroscope lithotrity, form endoscopic working channel, insert endoscope, take the packaging of dispatching from the factory of ureter stone taking device of the present utility model apart, the far-end of conduit 1 is entered into ureter by hand-held modular catheter 5 and seal wire handle 6, get around calculus and arrive calculus top, promote seal wire handle 6 to far-end, then screw thread screws seal wire handle 6 and modular catheter 5 with A/C 1 and seal wire 2, now basket silk 3 struts formation basket, plugging film 4 is thereupon softened, the periphery of basket 7 and plugging film 4 and ureter wall laminating, then on one side by endoscopic working channel to ureter water filling, drag conduit to near-end on one side, rubble enters basket 7 and is stopped by plugging film 4 under water impact, slowly towing and flowing downward until bladder under the drive of current along with conduit.Ureter stone taking device of the present utility model is easy to insert ureter, can not promote calculus drives in the wrong direction and causes ureter wall damage to kidney, and shutoff ureter completely, effectively prevent that calculus and calculus fragment are poured current and return in kidney, drag get stone process not yielding and friction ureter wall, the whole calculus of the disposable taking-up of energy, reach efficient calculus removing object.
Ureter stone taking device of the present utility model not only can be used for the shutoff of ureteral calculus and removes, the shutoff and the foreign body that also can be applicable to other body cavitys remove, include but not limited to following application: for the shutoff of renal calculus and remove, the shutoff of vascular thrombosis and removing, vascular puncture hole shutoff hemostasis, the shutoff of body cavity foreign body and removing as the processing of foreign body in trachea, intestinal.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the inventive method; can also make some improvement and supplement, these improvement and the supplementary protection scope of the present invention that also should be considered as.
Claims (9)
1. an overlay film basket type ureter stone taking device, is provided with conduit and seal wire, it is characterized in that, the far-end of described seal wire is provided with basket silk, the far-end of described basket silk comes together in a place and forms basket, on described basket, is fixed with plugging film, and described plugging film is moulded pocketed in advance; Under using state, the curved shape of described basket silk, described plugging film is strutted by basket silk.
2. ureter stone taking device according to claim 1, is characterized in that, it is outside or inner that described plugging film is fixed on basket silk, or be embedded in the middle of basket silk.
3. ureter stone taking device according to claim 1, is characterized in that, the transverse section of described plugging film diameter maximum and the transverse section of basket diameter maximum are at grade.
4. ureter stone taking device according to claim 1, is characterized in that, the maximum gauge of the transverse section of described basket is 3-5mm.
5. ureter stone taking device according to claim 1, is characterized in that, described plugging film is consistent with basket distal portions shape.
6. ureter stone taking device according to claim 5, is characterized in that, described basket distal portions and plugging film are hemispherical or semielliptical shape.
7. ureter stone taking device according to claim 1, is characterized in that, under unused state, described basket silk and plugging film are all accommodated in conduit.
8. ureter stone taking device according to claim 1, is characterized in that, described basket silk is that shape-memory material is made.
9. ureter stone taking device according to claim 1, is characterized in that, the near-end of described conduit is provided with modular catheter, and the far-end of described seal wire is provided with seal wire handle, and described modular catheter and seal wire handle are provided with the screw thread of coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388328.0U CN203988237U (en) | 2014-07-15 | 2014-07-15 | Overlay film basket type ureter stone taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388328.0U CN203988237U (en) | 2014-07-15 | 2014-07-15 | Overlay film basket type ureter stone taking device |
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| Publication Number | Publication Date |
|---|---|
| CN203988237U true CN203988237U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420388328.0U Active CN203988237U (en) | 2014-07-15 | 2014-07-15 | Overlay film basket type ureter stone taking device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095667A (en) * | 2014-07-15 | 2014-10-15 | 中国人民解放军第二军医大学 | Covered basket type ureteral calculus blockage extractor |
| CN108542438A (en) * | 2018-05-10 | 2018-09-18 | 温州市人民医院 | One kind being used for Minimally Invasive Surgery clot processing unit |
| CN113069180A (en) * | 2021-03-17 | 2021-07-06 | 重庆北部宽仁医院 | Hepatobiliary department stone removing instrument |
-
2014
- 2014-07-15 CN CN201420388328.0U patent/CN203988237U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095667A (en) * | 2014-07-15 | 2014-10-15 | 中国人民解放军第二军医大学 | Covered basket type ureteral calculus blockage extractor |
| WO2016008292A1 (en) * | 2014-07-15 | 2016-01-21 | 中国人民解放军第二军医大学 | Film-covered mesh basket-type ureter stone blockage extractor |
| CN104095667B (en) * | 2014-07-15 | 2016-05-25 | 中国人民解放军第二军医大学 | Overlay film basket type ureteral calculi stops extractor |
| CN108542438A (en) * | 2018-05-10 | 2018-09-18 | 温州市人民医院 | One kind being used for Minimally Invasive Surgery clot processing unit |
| CN113069180A (en) * | 2021-03-17 | 2021-07-06 | 重庆北部宽仁医院 | Hepatobiliary department stone removing instrument |
| CN113069180B (en) * | 2021-03-17 | 2022-03-29 | 重庆北部宽仁医院 | Hepatobiliary department stone removing instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Yinghao Inventor before: Sun Yinghao Inventor before: Xiao Liang Inventor before: Gao Xiaofeng Inventor before: Sheng Xia Inventor before: Peng Yonghan Inventor before: Li Ling Inventor before: Xu Bin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUN YINGHAO XIAO LIANG GAO XIAOFENG SHENG XIA PENG YONGHAN LI LING XU BIN TO: SUN YINGHAO |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Minimally invasive best medical technology (Shanghai) Co., Ltd. Assignor: Army Medical Univ. No.2, Chinese PLA Contract record no.: 2017310000061 Denomination of utility model: Membrane-covered reticular basket-type ureteral calculus-removing device Granted publication date: 20141210 License type: Exclusive License Record date: 20171128 |