CN203988234U - Membrane type ureter stone taking device - Google Patents
Membrane type ureter stone taking device Download PDFInfo
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- CN203988234U CN203988234U CN201420388637.8U CN201420388637U CN203988234U CN 203988234 U CN203988234 U CN 203988234U CN 201420388637 U CN201420388637 U CN 201420388637U CN 203988234 U CN203988234 U CN 203988234U
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Abstract
This utility model relates to a kind of membrane type ureter stone taking device, and it is provided with the action bars of proximal openings, far-end sealing and hollow, and action bars distal section is provided with plugging film; Under using state, see to the other end the described conglobate plug of plugging film structure from one end of action bars; Plugging film free margins is less than the distance of plugging film fixed edge to action bars near-end to the distance of action bars near-end; On the wall of described action bars, be also provided with through hole, the current that flowed out through described through hole by the cavity of action bars produce active force to the inwall of described plug.Ureter stone taking device volume of the present utility model is little, be 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 in current refunds kidney, be difficult for occurring the situation of calculus incarceration, drag and get the not yielding and friction ureter wall of stone process, 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 membrane 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 membrane 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 membrane type ureter stone taking device, is provided with the action bars of proximal openings, far-end sealing and hollow, it is characterized in that, action bars distal section is provided with plugging film; Under using state, see to the other end the described conglobate plug of plugging film structure from one end of action bars; Plugging film free margins is less than the distance of plugging film fixed edge to action bars near-end to the distance of action bars near-end; On the wall of described action bars, be also provided with through hole, the current that flowed out through described through hole by the cavity of action bars produce active force to the inwall of described plug.
Preferably, described action bars distal section is provided with embeded slot, and described plugging film is located in embeded slot, and described through hole is located on the wall of embeded slot.
As a preference of the present utility model, described plugging film is whole film, struts rear outer surface and be curved surface shape under using state.
Between described plugging film and action bars, be provided with supporter, described supporter and plugging film inwall and action bars outer wall are all connected and fixed, for providing support to plugging film.
Described supporter encircling operation bar is equidistantly arranged radially, and described through hole is arranged between adjacent supports body.
As another preference of the present utility model, described plugging film has multiple, and under using state, each plugging film is the fan-shaped and surperficial curved surface shape that is after strutting, and each plugging film is juxtaposition around action bars and arranges.
Action bars between adjacent plugging film is provided with reinforced membrane structure, and described reinforced membrane structure ring is on action bars, and described plugging film fixed edge is fixed on the near-end of reinforced membrane structure.
Two sides of plugging film respectively with described plugging film fixed edge shape district in an angle, Liang Ge angle district is drawn close each other, is all coated on the wall of action bars.
As another preference of the present utility model, under using state described plugging film strut after in the shape of a spiral around being fixed on the wall of action bars.
Count a plugging film subunit with encircling operation bar one circle, each plugging film subunit is isometrical or reducing.
This utility model advantage is:
1, the plug of ureter stone taking device of the present utility model is plugging film, and it is membranoid substance: volume is little, is convenient to insert ureter, can not promote the calculus kidney that drives in the wrong direction back, also easy damaged ureter wall not; There is certain flexibility, therefore the diameter of plug can be designed to such an extent that be a bit larger tham ureter diameter, so can reach shutoff completely, prevent that calculus slippage from omitting, disposable object of getting stone, can reduce again the incidence rate of calculus incarceration.
2, action bars is provided with through hole, the current that are injected into cavity, via through holes outflow again by the near-end of action bars produce active force to the interior wall energy of plug, thereby offset the active force of the current that inject through endoscopic procedure passage to plugging film, effectively prevent plugging film upset, avoid calculus to omit.
3, plugging film free margins is less than the distance of plugging film fixed edge to action bars near-end to the distance of action bars near-end, and therefore plugging film can form a space, and holding portion calculus reduces the friction of calculus and ureter wall; This design simultaneously also helps avoid the upset of plugging film in operation process.
4, action bars is provided with embeded slot, and described plugging film is located in embeded slot, makes ureter stone taking device of the present utility model possess less diameter, when being convenient to insert and avoiding inserting, promotes calculus to kidney direction, and damage ureter wall.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of single-lobe membrane type ureter stone taking device.
Accompanying drawing 2 is the enlarged drawings of A in Fig. 1.
Accompanying drawing 3 is the schematic diagrams under single-lobe membrane type ureter stone taking device unused state.
Accompanying drawing 4 is structural representations of many valves ureter stone taking device.
Accompanying drawing 5 is the enlarged drawings of B in Fig. 4.
Accompanying drawing 6 is front views of many valves ureter stone taking device.
Accompanying drawing 7 is structural representations of screw type membrane type ureter stone taking device.
Accompanying drawing 8 is the enlarged drawings of C in Fig. 7.
Detailed description of the invention
Herein, 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.Described " action bars proximal section " refers to the section of action bars near near-end, and described " action bars distal section " refers to the section of action bars near far-end.
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. action bars 11. action bars proximal section
12. action bars distal section 2. handles
3. guide head 4. embeded slots
5. plugging film 6. supporters
7. through hole 8. reinforced membrane structures
51. plugging film fixed edge 52. plugging film free margins
53. side 54. angle districts
55. plugging film subunits
embodiment 1 single-lobe membrane type ureter stone taking device
Please refer to Fig. 1, Fig. 1 is single-lobe membrane type ureter stone taking device.Described ureter stone taking device is provided with action bars 1, and described action bars 1 is cylindrical, hollow body, proximal openings, far-end sealing.The periphery of action bars proximal section 11 is provided with handle 2.The top of action bars distal section 12 is provided with guide head 3, and described guide head 3 is hemispherical.
Please refer to Fig. 2, Fig. 2 is the enlarged drawing of A in Fig. 1.Described action bars distal section 12 is provided with embeded slot 4 on the position at guide head 3 rears, described embeded slot 4 encircling operation bar 1 one weeks.Embeded slot 4 is provided with plugging film 5.Under using state, described plugging film 5 struts into hemispherical; Plugging film 5 remote edges are around being fixed on embeded slot 4 far-end outer walls, and its remote edge is designated as plugging film fixed edge 51; The proximal edge of plugging film 5, the limit relative with described plugging film fixed edge 51, is designated as plugging film free margins 52.Described plugging film free margins 52 is less than the distance of plugging film fixed edge 51 to action bars near-end to the distance of action bars near-end.Between described plugging film 5 and embeded slot 4, be provided with three supporters 6, each supporter 6 is laminated structure, article one, the outer wall of embeded slot 4 is fixed on and on action bars axial direction, a limit is curve-like the inwall that is fixed on plugging film 5 in limit, separately has a limit perpendicular to support bar 1.Three supporters 6 are equidistantly arranged radially around support bar 1.On described embeded slot 4 walls, be also provided with through hole 7, described through hole 7 always has three, is arranged between adjacent supports body 6.
Please refer to Fig. 3, Fig. 3 is the schematic diagram under single-lobe membrane type ureter stone taking device unused state.Ureter stone taking device of the present utility model is under unused state, and while also dispatching from the factory, described plugging film 5 and the equal shrinkage of supporter 6 are attached in embeded slot 4, make the diameter at embeded slot 4 places be not more than the diameter of action bars 1.
It should be noted that:
Described plugging film 5 takes out calculus for shutoff and compounding practice bar 1.5 of plugging films are as membranoid substance, with the contact surface of ureter wall be very little, therefore can greatly reduce rubble incarceration at ureteral probability; And there is certain flexibility, therefore the diameter of plugging film 5 can be designed to such an extent that be a bit larger tham ureter diameter, preferably 4-5mm, so can reach shutoff completely, prevent that calculus slippage from omitting, disposable object of getting stone, can reduce again the incidence rate of calculus incarceration.Plugging film free margins 52 is designed to be less than the distance of plugging film fixed edge 51 to action bars near-end to the distance of action bars near-end, it is whole plugging film 5 is buckled in action bars 1 far-end like umbrella, this design can ensure in use procedure that plugging film 5 is under the current of endoscopic procedure passage and the combined effect of through hole 7 place's current, maintain the shape that it is moulded in advance, be difficult for upset and distortion, and then can not omit calculus and calculus incarceration occurs; On the one hand, the plugging film 5 of this shape can form a space in addition, for holding calculus, reduces the friction of calculus and ureter wall, reduces damage.The shape of plugging film 5 is not limited only to hemispherical, as long as ensure that plugging film 5 outer surfaces are curved surface shape and maximum cross-sectional diameter is a bit larger tham ureter diameter, but hemispherical is the most preferred shapes of plugging film 5, it can ensure that plugging film 5 and ureter wall reach laminating completely closely, thoroughly shutoff, least easily distortion in use procedure.
Described supporter 6 is for fixed support and help plugging film 5 moulding.The quantity of supporter 6 and shape are all not limited to the present embodiment, as long as guarantee to support plugging film 5, but preferably supporter 6 is equidistantly arranged radially around support bar 1, balanced support force can be provided, and preferably supporter 6 is laminated structure, article one, the outer wall of embeded slot 4 is fixed on and on action bars axial direction, a limit is curve-like and the inwall that is fixed on plugging film 5 in limit, and provided support degree like this is the most remarkable.
Described action bars 1 inner hollow, proximal openings, described embeded slot 4 walls are provided with through hole 7, therefore can be to the cavity water filling of action bars 1, then water goes out from 7 one-tenth plumes of through hole, apply outside active force to the inwall of plugging film 5, this active force can be offset the active force of the current that injected by endoscopic procedure passage to plugging film 5, prevents the especially upset of plugging film free margins 52 of plugging film 5, and in maintenance operation process, plugging film 5 is indeformable.Described through hole 7 is not limited only to circular port, can also be other shapes such as square, as long as form waterflood path; The arrangement of through hole 7 and position are also unrestricted, as long as can offer plugging film 5 inwalls active force laterally.
Described plugging film 5 and supporter 6 can be the materials such as TPU, Pebax, FEP, ETFE, TPFE, and by molded in advance, this material shrinkage volume after folding is little, can ensure that ureter stone taking device of the present utility model has less volume.This material itself has again good toughness and moulding ability simultaneously, not yielding, and calculus is had to certain barrier force.
Described embeded slot 4, for holding plugging film 5 and the supporter 6 under unused state, makes ureter stone taking device integral diameter of the present utility model less, while inserting, is easy to get around calculus, is difficult for causing calculus displacement, also can not damage ureter wall.Described embeded slot 4 is not limited only to be arranged to encircling operation bar 1 one weeks, can be also that multiple bar shaped embeded slot encircling operation bars 1 are spaced etc.
The port design of described handle 2 becomes to mate with syringe ports, facilitates direct water filling.Described guide head 3 is preferably designed to hemispherical, can be also other curved surface shape, can not damage ureter wall in the time that guiding ureter stone taking device of the present utility model enters ureter.
Described guide head 3, plugging film 5, supporter 6 can be parts independently, and then welding, bonding or be otherwise fixed on action bars 1, also can be one-body molded with action bars 1.
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, hand-held handle 2 is inserted into the guide head of action bars 13 in endoscopic working channel, get around calculus and arrive calculus top, then the near-end by action bars 1 is to water filling in action bars 1 cavity, current flow out through passage 7, impact the inwall of plugging film 5, plugging film 5 is supported molding thereupon, tightly fit with ureter wall, then on one side by endoscopic working channel to ureter water filling, keep on one side to water filling in action bars 1 cavity, on one side to near-end drag operation bar 1, rubble is punched in the space that plugging film 5 forms under continuous water impact, or along with the current stirring that constantly circulates, action bars 1 slowly drag and in the drive of current downstream to bladder.
embodiment valve more than 2 ureter stone taking device
Please refer to Fig. 4, Fig. 4 is the structural representation of many valves ureter stone taking device.Described ureter stone taking device is provided with action bars 1, and described action bars 1 is cylindrical, hollow body, proximal openings, far-end sealing.The periphery of action bars proximal section 11 is provided with handle 2.The top of action bars distal section 12 is provided with guide head 3, and described guide head 3 is hemispherical.
Please refer to Fig. 5, Fig. 5 is the enlarged drawing of B in Fig. 4.Described action bars distal section 12 is provided with embeded slot 4 in the position at guide head 3 rears, described embeded slot 4 encircling operation bar 1 one weeks.On embeded slot 4, be also provided with two reinforced membrane structures 8, described reinforced membrane structure 8 is ring-type, and two reinforced membrane structures 8 are all looped around on embeded slot 4, and embeded slot 4 is separated into three sections.Each embeded slot 4 sections are provided with a plugging film 5, and under using state, described plugging film 5 struts and is substantially fan-shaped afterwards, and surface is curved surface shape.The remote edge of three plugging films 5 is all fixed on the outer wall of embeded slot 4, and its remote edge is designated as plugging film fixed edge 51, and particularly, described plugging film fixed edge 51 is separately fixed at the far-end of embeded slot 4 or the near-end of reinforced membrane structure 8; The proximal edge of plugging film 5, the limit relative with described plugging film fixed edge 51, is designated as plugging film free margins 52; The plugging film free margins 52 of each plugging film 5 is less than the distance of plugging film fixed edge 51 to action bars near-end to the distance of action bars near-end.Three plugging films 5 are juxtaposition around action bars 1 and arrange.On the wall of each embeded slot 4 sections, be also provided with a through hole 7, the position of described through hole 7 is corresponding with the axis of symmetry of plugging film 5.
Please refer to Fig. 6, Fig. 6 is the front view of many valves ureter stone taking device.Every side 53 and the plugging film fixed edge 51 shapes district 54 in an angle of plugging film 5, Liang Ge angle district 54 is the trend of drawing close each other, is coated on the wall of embeded slot 4.
It should be noted that:
Ureter stone taking device of the present utility model is under unused state, and while also dispatching from the factory, the described equal shrinkage of plugging film 5 is attached in embeded slot 4, makes the diameter at embeded slot 4 places be not more than the diameter of action bars 1.
Described plugging film 5 takes out calculus for shutoff and compounding practice bar 1.The quantity of plugging film 5 is not limited only to the present embodiment, can also be four, five, six or other number, as long as ensureing each plugging film 5 arranges around action bars 1 juxtaposition, see to the other end from one end of action bars 1, each plugging film 5 can form a circle and not leave remarkable space.As long as the distance between adjacent plugging film 5 can ensure that calculus is difficult for therefrom slippage and drives in the wrong direction.Plugging film 5 is for molded in advance, be preferably surface and be curved fan-shaped, this shape ensures can form the not complete plugging structure containing space after each plugging film 5 combinations, and the cross-sectional diameter of this plugging structure maximum is preferably designed to is a bit larger tham ureter diameter, particularly, be preferably 4-5mm.The plugging film free margins 52 of each plugging film 5 is designed to be less than the distance of plugging film fixed edge 51 to action bars near-end to the distance of action bars near-end, it is the far-end that plugging structure that plugging film 5 forms is similar to umbrella and is buckled in action bars 1, this design can ensure in use procedure that plugging film 5 is under the current of endoscopic procedure passage and the combined effect of through hole 7 place's current, maintain the shape that its preformed forms, be difficult for upset and distortion, and then can not omit calculus and calculus incarceration occurs; On the one hand, the plugging film 5 of this shape can form a space in addition, for holding calculus, reduces the friction of calculus and ureter wall, reduces damage.Liang Ge angle district 54 is the trend of drawing close each other, is coated on the wall of embeded slot 4, can ensure that the current of through hole 7 are coated on plugging film 5 belows, effectively maintains the shape of plugging film 5.The plugging film fixed edge 51 of three plugging films 5 is fixed on the far-end of embeded slot 4 or the near-end of reinforced membrane structure 8, so can play restriction effect to plugging film free margins 51 by the near-end of the far-end of embeded slot 4 or reinforced membrane structure 8, further prevents upset.5 of plugging films are as membranoid substance, with the contact surface of ureter wall be very little, therefore can greatly reduce rubble incarceration at ureteral probability.Described plugging film 5 can be TPU, Pebax, FEP, ETFE material, and this material shrinkage volume after folding is little, can ensure that ureter stone taking device of the present utility model has less volume; This material itself has again good toughness and moulding ability simultaneously, not yielding, and calculus is had to certain barrier force.
Described action bars 1 inner hollow, proximal openings, described embeded slot 4 walls are provided with through hole 7, therefore can be to action bars 1 intracavity water filling, water goes out from 7 one-tenth plumes of through hole, apply outside active force to the inwall of plugging film 5, these current can be offset the active force of the current that injected by endoscopic procedure passage to plugging film 5 to the power of plugging film 5, prevent that plugging film 5 from overturning, and in maintenance operation process, plugging film 5 is indeformable.Described through hole 7 is not limited only to circular port, can also be other shapes such as square; The arrangement of through hole 7 is also unrestricted, as long as can offer the outside active force of plugging film 5 inwalls, but preferably through hole 7 is located on the position corresponding with plugging film 5 axis of symmetry, so can provide balanced active force to plugging film 5.
Described embeded slot 4, for holding the plugging film 5 under unused state, makes ureter stone taking device integral diameter of the present utility model less, while inserting, is easy to get around calculus, is difficult for causing calculus displacement, also can not damage ureter wall.Embeded slot 4 can be also a complete section, does not establish reinforced membrane structure 8.Described embeded slot 4 is not limited only to be arranged to encircling operation bar 1 one weeks, can be also that multiple bar shaped embeded slot encircling operation bars 1 are spaced etc.
The port design of described handle 2 becomes to mate with syringe ports, facilitates direct water filling.Described guide head 3 is preferably designed to hemispherical, can be also other curved surface shape, can not damage ureter wall in the time that guiding ureter stone taking device of the present utility model enters ureter.
Described guide head 3, plugging film 5 can be parts independently, and then welding, bonding or be otherwise fixed on action bars 1, also can be one-body molded with action bars 1.
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, hand-held handle 2 is inserted into the guide head of action bars 13 in endoscopic working channel, get around calculus and arrive calculus top, then the near-end by action bars 1 is to water filling in action bars 1 cavity, current flow out through passage 7, impact the inwall of plugging film 5, plugging film 5 is supported molding thereupon, each plugging film 5 forms a circular plugging structure, edge and the ureter wall of plugging structure are tightly fitted, then on one side by endoscopic working channel to ureter water filling, keep on one side to water filling in action bars 1 cavity, on one side to near-end drag operation bar 1, rubble is punched in the space that plugging film 5 forms under continuous water impact, or along with the current stirring that constantly circulates, action bars 1 slowly drag and in the drive of current downstream to bladder.
embodiment 3 screw type membrane type ureter stone taking devices
Please refer to Fig. 7, Fig. 7 is the structural representation of screw type membrane type ureter stone taking device.Described ureter stone taking device is provided with action bars 1, and described action bars 1 is cylindrical, hollow body, proximal openings, far-end sealing.The periphery of action bars proximal section 11 is provided with handle 2.The top of action bars distal section 12 is provided with guide head 3, and described guide head 3 is hemispherical.
Please refer to Fig. 8, Fig. 8 is the enlarged drawing of C in Fig. 7.Described action bars distal section 12 is provided with embeded slot 4 in the position at guide head 3 rears, described embeded slot 4 encircling operation bar 1 one weeks.Embeded slot 4 is provided with plugging film 5; Under using state, after strutting, described plugging film 5 in the shape of a spiral around being fixed on the wall of embeded slot 4, altogether around three circles, to count a plugging film subunit 55 around a circle, has three plugging film subunits 55.The remote edge spiral surrounding of each plugging film subunit 55 is fixed on embeded slot 4 outer walls, and the remote edge of plugging film subunit 55 is designated as plugging film fixed edge 51; The proximal edge of plugging film subunit 55, the limit relative with described plugging film fixed edge 51, is designated as plugging film free margins 52.Described plugging film free margins 52 is less than the distance of plugging film fixed edge 51 to action bars near-end to the distance of action bars near-end.The diameter of each plugging film subunit 55 all equates, from the far-end of action bars 1 to proximal direction, and the imbricate of each plugging film subunit 55, whole plugging film 5 forms cylindrical plugging structure.The wall of the embeded slot 4 between adjacent plugging film subunit 55 is provided with through hole 7.
It should be noted that:
Ureter stone taking device of the present utility model is under unused state, and while also dispatching from the factory, described plugging film 5 shrinkages are attached in embeded slot 4, make the diameter at embeded slot 4 places be not more than the diameter of action bars 1.
Described plugging film 5 takes out calculus for shutoff and compounding practice bar 1.Plugging film 5 can be whole film, can be also multiple film helical arrangement, as long as ensure to see to the other end from one end of action bars 1, plugging film 5 can form a circular plugging structure and not leave remarkable space.Spiral helicine plugging film 5 can be realized the multiple of calculus stopped, effectively prevents that calculus is retrograde.Distance between adjacent plugging film subunit 55 is indefinite, as long as can ensure that calculus is difficult for driving in the wrong direction to kidney direction.Each plugging film subunit 55 can be isometrical, also can be reducing, from the far-end of action bars 1 to proximal direction, the edge of each plugging film subunit 55 can be overlapping, can be not overlapping yet, whole plugging film 5 can form cylindrical plugging structure, can be also important actor shape plugging structure.The cross-sectional diameter of whole plugging film 5 maximums is preferably designed to is a bit larger tham ureter diameter, particularly, is preferably 4-5mm.Plugging film free margins 52 is less than the distance of plugging film fixed edge 51 to action bars near-end to the distance of action bars near-end, be that plugging film subunit 55 exists inclination angle with respect to action bars 1, this design can ensure that in use procedure, plugging film 5 can be under the combined effect of the current of endoscopic procedure passage and through hole 7 place's current, remain the shape that it is moulded in advance, be difficult for upset and distortion, and then can not omit calculus and calculus incarceration occurs; On the one hand, this design can make plugging film 5 form a space in addition, for holding calculus, reduces the friction of calculus and ureter wall, reduces damage.5 of plugging films are as membranoid substance, with the contact surface of ureter wall be very little, therefore can greatly reduce rubble incarceration at ureteral probability.Described plugging film 5 can be TPU, Pebax, FEP, ETFE, PTFE material, and by molded in advance, this material shrinkage volume after folding is little, can ensure that ureter stone taking device of the present utility model has less volume; This material itself has again good toughness and moulding ability simultaneously, not yielding, and calculus is had to certain barrier force.
Described action bars 1 inner hollow, proximal openings, described embeded slot 4 walls are provided with through hole 7, therefore can be to action bars 1 internal water flooding, then 7 one-tenth plumes of water via through holes go out, give the active force laterally of inwall of plugging film 5, these current can be offset the active force of the current that injected by endoscopic procedure passage to plugging film 5 to the active force of plugging film 5, prevent that plugging film 5 from overturning, and in maintenance operation process, plugging film 5 is indeformable.Described through hole 7 is not limited only to circular port, can also be other shapes such as square; The arrangement of through hole 7 is also unrestricted, as long as can offer plugging film 5 inwalls active force laterally.
Described embeded slot 4, for holding the plugging film 5 under unused state, makes ureter stone taking device integral diameter of the present utility model less, while inserting, is easy to get around calculus, is difficult for causing calculus displacement, also can not damage ureter wall.Described embeded slot 4 is not limited only to be arranged to encircling operation bar 1 one weeks, can be also that multiple bar shaped embeded slot encircling operation bars 1 are spaced etc.
The port design of described handle 2 becomes to mate with syringe ports, facilitates direct water filling.Described guide head 3 is preferably designed to hemispherical, can be also other curved surface shape, can not damage ureter wall in the time that guiding ureter stone taking device of the present utility model enters ureter.
Described guide head 3, plugging film 5 can be parts independently, and then welding, bonding or be otherwise fixed on action bars 1, also can be one-body molded with action bars 1.
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, hand-held handle 2 is inserted into the guide head of action bars 13 in endoscopic working channel, get around calculus and arrive calculus top, then the near-end by action bars 1 is to water filling in action bars 1 cavity, current flow out by passage 7, impact the inwall of plugging film 5, plugging film 5 is supported molding thereupon, whole plugging film 5 forms the plugging structure of cylindrical or important actor shape or other shape, its edge and ureter wall are tightly fitted, then on one side by endoscopic working channel to ureter water filling, keep on one side to water filling in action bars 1 cavity, on one side to near-end drag operation bar 1, rubble is punched in the space that plugging film 5 forms under continuous water impact, or along with the current stirring that constantly circulates, action bars 1 slowly drag and in the drive of current downstream to bladder.
Ureter stone taking device volume of the present utility model is little, be 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 in current refunds kidney, be difficult for occurring the situation of calculus incarceration, drag and get the not yielding and friction ureter wall of stone process, 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 (10)
1. a membrane type ureter stone taking device, is provided with the action bars of the sealing of proximal openings, far-end and hollow, it is characterized in that, action bars distal section is provided with plugging film; Under using state, see to the other end the described conglobate plug of plugging film structure from one end of action bars; Plugging film free margins is less than the distance of plugging film fixed edge to action bars near-end to the distance of action bars near-end; On the wall of described action bars, be also provided with through hole, the current that flowed out through described through hole by the cavity of action bars produce active force to the inwall of described plug.
2. ureter stone taking device according to claim 1, is characterized in that, described action bars distal section is provided with embeded slot, and described plugging film is located in embeded slot, and described through hole is located on the wall of embeded slot.
3. ureter stone taking device according to claim 1 and 2, is characterized in that, described plugging film is whole film, struts rear outer surface and be curved surface shape under using state.
4. ureter stone taking device according to claim 3, is characterized in that, between described plugging film and action bars, is provided with supporter, and described supporter and plugging film inwall and action bars outer wall are all connected and fixed, for providing support to plugging film.
5. ureter stone taking device according to claim 4, is characterized in that, described supporter encircling operation bar is equidistantly arranged radially, and described through hole is arranged between adjacent supports body.
6. ureter stone taking device according to claim 1 and 2, is characterized in that, described plugging film has multiple, and under using state, each plugging film is the fan-shaped and surperficial curved surface shape that is after strutting, and each plugging film is juxtaposition around action bars and arranges.
7. ureter stone taking device according to claim 6, it is characterized in that, action bars between adjacent plugging film is provided with reinforced membrane structure, and described reinforced membrane structure ring is on action bars, and described plugging film fixed edge is fixed on the near-end of reinforced membrane structure.
8. ureter stone taking device according to claim 7, is characterized in that, two sides of plugging film respectively with described plugging film fixed edge shape district in an angle, Liang Ge angle district is drawn close each other, is all coated on the wall of action bars.
9. ureter stone taking device according to claim 1, is characterized in that, under using state described plugging film strut after in the shape of a spiral around being fixed on the wall of action bars.
10. ureter stone taking device according to claim 9, is characterized in that, counts a plugging film subunit with encircling operation bar one circle, and each plugging film subunit is isometrical or reducing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388637.8U CN203988234U (en) | 2014-07-15 | 2014-07-15 | Membrane type ureter stone taking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388637.8U CN203988234U (en) | 2014-07-15 | 2014-07-15 | Membrane type ureter stone taking device |
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| CN203988234U true CN203988234U (en) | 2014-12-10 |
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| CN201420388637.8U Active CN203988234U (en) | 2014-07-15 | 2014-07-15 | Membrane type ureter stone taking device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095665A (en) * | 2014-07-15 | 2014-10-15 | 中国人民解放军第二军医大学 | Membrane type ureteral calculus blocking removal machine |
| CN105559854A (en) * | 2016-01-04 | 2016-05-11 | 吴娟 | Coaxial sleeve tube type water circulation quick calculus removal device used after flexible ureteroscope lithotripsy |
| CN106955138A (en) * | 2017-03-09 | 2017-07-18 | 徐白生 | A kind of multi-functional zebra guide wire |
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2014
- 2014-07-15 CN CN201420388637.8U patent/CN203988234U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095665A (en) * | 2014-07-15 | 2014-10-15 | 中国人民解放军第二军医大学 | Membrane type ureteral calculus blocking removal machine |
| WO2016008291A1 (en) * | 2014-07-15 | 2016-01-21 | 中国人民解放军第二军医大学 | Film-type ureter stone blockage extractor |
| CN105559854A (en) * | 2016-01-04 | 2016-05-11 | 吴娟 | Coaxial sleeve tube type water circulation quick calculus removal device used after flexible ureteroscope lithotripsy |
| CN106955138A (en) * | 2017-03-09 | 2017-07-18 | 徐白生 | A kind of multi-functional zebra guide wire |
| CN106955138B (en) * | 2017-03-09 | 2023-07-07 | 徐白生 | Multifunctional zebra guide wire |
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| 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 |
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| 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 |
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| 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-type calculus-removing device Granted publication date: 20141210 License type: Exclusive License Record date: 20171128 |