CN204734518U - Get stone sacculus - Google Patents
Get stone sacculus Download PDFInfo
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- CN204734518U CN204734518U CN201520372757.3U CN201520372757U CN204734518U CN 204734518 U CN204734518 U CN 204734518U CN 201520372757 U CN201520372757 U CN 201520372757U CN 204734518 U CN204734518 U CN 204734518U
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- sacculus
- stone
- sacculus body
- valve body
- interface
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- 239000004575 stone Substances 0.000 title claims abstract description 78
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 230000004044 response Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 14
- 230000033228 biological regulation Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 abstract description 3
- 210000003445 biliary tract Anatomy 0.000 description 31
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000002872 contrast media Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000000013 bile duct Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a get stone sacculus, including interface, sheath pipe and the sacculus body, sheath pipe one end is connected the interface, another pot head is established and is fixed with the sacculus body, the sheath pipe is established at the cover sacculus body department is equipped with the drill way, the sacculus body is radial telescopic, just the sacculus body is the platykurtic that radial dimension is greater than axial dimensions sufficient after. The utility model discloses a get stone sacculus can the reduce friction resistance when using, changes simultaneously and takes out silt form calculus, and then can shorten operation time, and it is painful to reduce the patient, in addition, through setting up sufficient answer mechanism, the answer speed of the sacculus body when the shrink is replied can be adjusted, the too fast problem of the sufficient back answer speed of the sacculus body has been solved. (Pbpnum='1' /)
Description
Technical field
This utility model belongs to gets stone medical instruments field, especially a kind of coordinate scope to use get stone sacculus for biliary tract stone extraction.
Background technology
Getting stone sacculus is carry out the conventional medical apparatus and instruments that the ERCP (Endoscopic retrograde cholangio-pancreatiography art) such as biliary tract stone extraction perform the operation, and is mainly used in the taking-up of muddy stone.
In the prior art, get stone sacculus and be usually made up of conduit, sacculus and inflation mechanism, sacculus body body is an elastic thin-walled structures, can keep very little diameter at full forecourt utricule; During use, under guiding via the seal wire of inserting in advance in biliary tract, enter in human biliary duct through duodenoscope pincers road, when sacculus body arrives assigned address, by inflation mechanism sacculus body inflated thus make sacculus volume expansion.
And existing routine is got stone sacculus and is being carried out in biliary tract stone extraction process, there is Railway Project:
1, the frictional resistance of sacculus body and biliary tract wall is large, and operation effort is difficult to drag the sacculus body after filling;
2, muddy stone is easy to skid off from the lower surface of sacculus body, causes needing repeatedly to clear up, and increases operating time and operation easier.
Utility model content
In order to overcome, existing to get stone sacculus frictional resistance when Clinical practice large, simultaneously the calculus shortcoming of not easily taking out, and can reduce frictional resistance when this utility model provides a kind of use, the one of simultaneously more easily getting stone gets stone sacculus.
One of the present utility model gets stone sacculus, and it comprises interface, sheath pipe and sacculus body, and one end of described sheath pipe connects described interface, and the other end of described sheath pipe is sheathed and be fixed with described sacculus body, and described sheath pipe is provided with aperture at sheathed described sacculus body place; Described sacculus body is radial telescopic, and described sacculus body after full radially size be greater than the flat of axial dimension.
Preferably, the fully full rear radial dimension of described sacculus body is more than 1.3 times of axial dimension.
Preferably, the fully full rear radial dimension of described sacculus body is more than 2 times that effectively can fill partial-length.
Preferably, described sacculus body is flat pieces of chess shape after full.
Preferably, described sacculus body is provided with and fills and shrink the full response agency of replying for carrying out sacculus body, this full response agency comprises syringe, two-way valve, and described syringe is connected to one end of described two-way valve, and the other end of described two-way valve is connected with described interface.
Preferably, described full response agency is provided with one-way current-limiting structure, and described one-way current-limiting structure is connected between described syringe and described two-way valve,
Wherein, described one-way current-limiting structure comprises:
Valve body;
Be arranged at the end side of described valve body and connect the outer locked joints of described two-way valve;
Adjusting knob, its body of rod comprising adjusting tap and be connected with described adjusting tap, described adjusting tap is positioned at the top outside described valve body, and the described body of rod is placed in described valve body;
Sealing ring, it is fixed on the lower end of the described body of rod;
Spring, it is fixedly installed in the inner upper of described valve body and is sheathed on the described body of rod, contacts with the described sealing ring being fixed on described body of rod lower end simultaneously.
Further, described syringe comprises injection cylinder, push rod and packed-piston, described packed-piston is arranged on described push rod, described push rod is installed in described injection cylinder, the barb structure that when described packed-piston is one-way movement, friction increases or the structure for friction increase during bidirectional-movement.
Preferably, described two-way valve comprises: stopcock, valve body, joint, Unidirectional flow-limiting catch, wherein, described stopcock is positioned at above described valve body, and described joint is positioned at described valve body side, wherein, the handle part of described stopcock is above described valve body, and the cock body of described stopcock is placed in described valve body, and described joint is positioned at described valve body side, the upper end of described Unidirectional flow-limiting catch is fixed in the draw-in groove of described stopcock handle portion, and described Unidirectional flow-limiting catch entirety is placed in described stopcock cock body.
Further, described syringe is provided with speed change and fills adjustment structure, and this speed change fills adjustment structure and comprises adjusting rod, packed-piston, restriction slide block and regulation valve body; Described restriction slide block comprises left restriction slide block and right restriction slide block; Described packed-piston is fixed on described adjusting rod, and described adjusting rod can drive described packed-piston to move back and forth in described regulation valve body; Described left restriction slide block is located on described adjusting rod relative with described regulation valve body fixing with described right restriction slide block set; By regulating the speed of the full response agency of restriction slide block adjustment.
As a kind of preferred structure in this utility model, described sheath Guan Weishuan inner-cavity structure, one of them inner chamber is sacculus lumenal passageway, and another inner chamber is silk guide passage or injection canal; Interface is communicated with the near-end of the sacculus lumenal passageway of described sheath pipe.
As a kind of preferred structure in this utility model, described sheath Guan Weisan inner-cavity structure, these three inner chambers are respectively sacculus lumenal passageway, silk guide passage and injection canal; The near-end of described sacculus lumenal passageway is communicated with described interface; The near-end of described silk guide passage is communicated with guidewire interface, and the near-end of described injection canal is communicated with injection interface.
Further, stone sacculus of getting of the present utility model also can comprise development section, described development section at least comprises two development parts, described development part has a side being positioned at described sacculus body at least, remaining development part is positioned at the other side of sacculus body or is positioned at the inner other side near sacculus body of sacculus body, and is connected with sheath pipe.
Adopt and of the present utility modelly get stone sacculus, by make the radial scalable and sacculus body of the filled part of sacculus body after full radially size be greater than the flat of axial dimension, effective contact area of sacculus body and biliary tract wall is reduced, and then reduce the frictional force of sacculus body and biliary tract wall, thus solve and get the large problem of the frictional resistance that occurs in stone sacculus clinical course in the market, make operation easier, laborsaving and alleviate patient suffering; After sacculus body is effectively full, the flat that radially size is greater than axial dimension makes the transition gap of sacculus body axial side wall and footpath both ends of the surface up and down diminish, thus solve and to get in stone process muddy stone easily from the problem that sacculus body side slips over, shorten operating time, alleviate the misery of patient; Meanwhile, by arranging full response agency, sacculus body can being regulated shrinking reply speed when replying, solving the problem that sacculus body fills rear reply excessive velocities.
Accompanying drawing explanation
Fig. 1 is that this utility model one gets stone balloon structure schematic diagram;
Fig. 2 is that this utility model one gets stone sacculus initiating structure schematic diagram;
Fig. 3 is the schematic diagram representing sheath tube shape;
Fig. 4 is according to the structural representation getting stone sacculus in another kind of embodiment of the present utility model;
Fig. 5 is the profile of the one-way current-limiting structure in the biliary tract sacculus body of Fig. 4;
Fig. 6 is the structural representation of a kind of variation of getting stone sacculus;
Fig. 7 is the structural representation getting the two-way valve of stone sacculus in Fig. 6;
Fig. 8 is the structural representation of a kind of syringe getting stone sacculus;
Fig. 9 represents a kind of profile comprising the two-way valve structure of current limliting catch getting stone sacculus;
Figure 10 is the structural representation of the another kind of variation of getting stone sacculus;
Figure 11 is that the speed change of getting stone sacculus of Figure 10 fills the axonometric chart of replying adjustment structure;
Figure 12 is that the speed change of getting stone sacculus of Figure 11 fills the structural representation of replying adjustment structure;
Figure 13 is the profile sectioned according to the A-A line of Figure 12;
Figure 14 is the structural representation that the speed change of Figure 11 fills the left restriction slide block of replying adjustment structure;
Figure 15 is the structural representation that the speed change of Figure 11 fills the right restriction slide block of replying adjustment structure;
Figure 16 is the partial structurtes schematic diagram of another variation of getting stone sacculus;
Figure 17 is the structural representation of another variation of getting stone sacculus;
Figure 18 is the sectional view of sheath pipe along A-A line getting stone sacculus of Figure 17.
Detailed description of the invention
Describe the detailed description of the invention of biliary tract sacculus body of the present utility model in detail below in conjunction with accompanying drawing, but this utility model is not limited to these detailed description of the invention.
Embodiment 1
As shown in Figure 1 to Figure 3, this utility model one is got stone sacculus and is comprised interface 1, sheath pipe 2 and sacculus body 3, the near-end connecting interface 1 of sheath pipe 2, the sheathed sacculus body 3 of distal exterior of sheath pipe 2, sheath pipe 2 is provided with aperture (not shown) at sheathed sacculus body 3 place; The both ends of sacculus body 3 are fixed on the lateral wall of sheath pipe 2, effectively can filling partly (as shown in Figure 2 of sacculus body 3 between the both ends of sacculus body 3, L is the length that effectively can fill part), sacculus body 3 effectively can fill part for radial telescopic, and sacculus body 3 after full radially dimension D be greater than the flat of axial dimension H.
Wherein, interface 1 is communicated with the near-end of sheath pipe by injection moulding or other connected modes and forms gas channel, and interface 1 is connected with syringe by dismountable connected mode such as screw thread, for inflating the part that effectively can fill of sacculus body, the radial direction that effectively can fill part of sacculus body is extended and venting after-contraction after full.
Sacculus body 3 compliance macromolecular material is made, itself be the smaller similar waist drum shape (as Suo Shi Fig. 3 (b)) in straight-tube shape (as Suo Shi Fig. 3 (a)) or both ends, this itself is not limited to illustrated several shape being explained sacculus body 3.Sacculus body 3 is set in the far-end of sheath pipe 2, and preferably close to the distal portion of sheath pipe, and the both ends of sacculus body 3 are fixed on the lateral wall of sheath pipe 2 by bonding or other modes.
A kind of operational approach of getting stone sacculus of this utility model is: during original state, and the part that effectively can fill of sacculus body is shunk; When getting stone, sacculus body 3 and sheath pipe 2 enter in patient's biliary tract, and sacculus body is placed in calculus upper end, then sacculus body is inflated by interface and sheath pipe with the air-flow that syringe produces, after sacculus body is fully filled, namely radially dimension D is greater than the flat of axial dimension H, pulls sacculus body that calculus is cleared out of biliary tract by sheath pipe.
Preferably, sacculus body 3 is more than 1.3 times of axial dimension at fully full rear radial dimension; Or preferably, radial dimension is more than 2 times that effectively can fill partial-length after sacculus body is fully full, make sacculus body more flat after fully full, the side of sacculus body and the contact area of biliary tract wall less, and then less with the frictional force of biliary tract wall.
More preferably, sacculus body in flat pieces of chess shape, makes sacculus body more flat after fully full after fully full, the side of sacculus body and the contact area of biliary tract wall less while the upper and lower end face of sacculus body more smooth, sectional area is larger.
This utility model by sacculus body effectively can fill the radial scalable and sacculus body of part after full radially size be greater than the flat of axial dimension, effective length size after reduction sacculus body fills, roughly in flat pieces of chess shape after making sacculus body fill, effective contact area of sacculus body and biliary tract wall is reduced, and then reduce the frictional force of sacculus body and biliary tract wall, thus solve and get the large problem of the frictional resistance that occurs in stone sacculus clinical course in the market; And then more effective avoiding damages bile duct wall; And make operation easier, laborsaving, reliable; Secondly, after sacculus body is effectively full, the flat that radially size is greater than axial dimension makes the transition gap of sacculus body axial side wall and footpath both ends of the surface up and down diminish, thus solve and to get in stone process muddy stone easily from the problem that sacculus body side slips over, the damage brought patient of stone is got in effective minimizing repeatedly, shorten operating time, reduce patient suffering.
Embodiment 2
Further, on the basis of embodiment 1, stone sacculus of getting of the present utility model can also comprise sacculus body and fills response agency 4, for carrying out filling and shrink reply to sacculus body.
As shown in Figure 4, in example 2, full response agency 4 includes: syringe 4-1, one-way current-limiting structure 4-3, two-way valve 4-2, wherein, one end of two-way valve 4-2 is connected with one end of interface 1, the other end of two-way valve 4-2 is connected with one end of one-way current-limiting structure 4-3, and the other end of one-way current-limiting structure 4-3 is connected with syringe 4-1.As shown in Figure 5, one-way current-limiting structure comprises: valve body 4-3-1, spring 4-3-2, outer locked joints 4-3-3, adjusting knob 4-3-4, sealing ring 4-3-5.Wherein, outer locked joints 4-3-3 is arranged at the end side of one-way current-limiting structure 4-3 for connecting two-way valve, the body of rod that adjusting knob 4-3-4 comprises adjusting tap and is connected with adjusting tap, adjusting tap is positioned at the top outside valve body 4-3-1, the body of rod is placed in valve body 4-3-1, spring is fixedly installed in the inner upper of valve body 4-3-1 and is sheathed on the body of rod, contacts with the sealing ring 4-3-5 being fixed on body of rod lower end simultaneously.
The mode of operation of biliary tract sacculus body is in this embodiment: during original state, sacculus body 3 is in recoil state, the two-way valve 4-2 of full response agency 4 is in closed condition, syringe 4-1 is provided with spacing with the filling volume number limited sacculus body 3, and syringe 4-1 is in maximum spacing place; Get stone sacculus when filling, the two-way valve 4-2 of full response agency 4 is in open mode, and syringe 4-1 shifts lowermost end onto, and sacculus body 3 fills regulation greatest diametrical dimension; Said process is identical with normally getting stone sacculus, difference be sacculus body 3 full after radial dimension and axial dimension than becoming large, sacculus body 3 shape is flat chessman shape.Getting in stone process, comparing and common sacculus body, after sacculus body 3 is full, axial dimension diminishes, and sacculus body 3 reduces with the contact area of biliary tract wall, draw sacculus body 3 when getting stone, the less traction of itself and biliary tract wall, more easily gets stone, get stone amount larger, thus can operating time be shortened, alleviate patient suffering.When the sacculus body 3 after filling is returned to original state, stone sacculus is got compared to common, the one-way current-limiting structure 4-3 of full response agency 4 plays metering function, regulate the adjusting knob 4-3-4 scalable current limliting speed of one-way current-limiting structure 4-3 simultaneously, slow down sacculus body 3 reply speed, solve get stone sacculus 3 full after the internal pressure that causes of change of shape increase, sacculus body replys that speed is more common gets the fast problem of stone sacculus.
Embodiment 3
As shown in Figure 6, in embodiment 3, full response agency 4 comprises syringe 4-1, two-way valve 4-2, and one end of two-way valve 4-2 is connected with one end of interface 1.As shown in Figure 7, two-way valve 4-2 comprises: stopcock 4-2-1, valve body 4-2-2, the cock body that joint 4-2-3, stopcock 4-2-1 comprise handle and be connected with handle, handle is positioned at above valve body 4-2-2, cock body is placed in valve body 4-2-2, and joint 4-2-3 is positioned at valve body 4-2-2 side.As shown in Figure 8, syringe 4-1 comprises: push rod 4-1-1, packed-piston 4-1-2, cylindrical shell 4-1-3.Packed-piston 4-1-2 is fixed on push rod 4-1-1, and push rod 4-1-1 can drive packed-piston 4-1-2 to move back and forth in cylindrical shell 4-1-3.
As shown in Figure 8, in one example in which, getting stone sacculus can directly utilize syringe 4-1 self to realize current-limiting function, its operation is as follows: time full, the push rod 4-1-1 of pushing syringe 4-1 drives packed-piston 4-1-2 to travel forward, and sacculus body 3 is along with the motion of push rod 4-1-1, and full change is large gradually, until arrive maximum full size, close two-way valve 4-2; Now, push rod 4-1-1 drives packed-piston 4-1-2 forward, and its frictional force with cylindrical shell is with no significant difference compared with standard syringe.When sacculus body 3 is replied, open two-way valve 4-2, the sacculus body 3 after full automatically replies, and the push rod 4-1-1 in pushing syringe 4-1 drives the relative cylindrical shell 4-1-3 of packed-piston 4-1-2 to move backward; Now the apparent friction of packed-piston 4-1-2 and cylindrical shell 4-1-3 increases, in order to the reply speed of the sacculus body 3 that slows down.
Preferably, packed-piston 4-1-2 can for the structure making one-way movement friction increase, such as barb-shaped structure; Namely, when push rod 4-1-1 drives packed-piston 4-1-2 to travel forward, when carrying out full to sacculus body 3, its frictional resistance with cylindrical shell 4-1-3 is with zero difference compared with standard syringe; When push rod 4-1-1 drives packed-piston 4-1-2 to move backward, the frictional resistance of packed-piston 4-1-2 and cylindrical shell 4-1-3 becomes large.In addition, packed-piston 4-1-2 can adopt elastic polymer material to obtain.
Adopt the mode of operation of getting stone sacculus in this example as follows: during original state, sacculus body 3 is fixed on the far-end of sheath pipe 2, the near-end connecting interface 1 of sheath pipe 2, full response agency is in closed condition.During work, observation is got stone sacculus and is arrived after expection gets stone position, open full response agency 4, namely two-way valve 4-2 opens, and fills sacculus body 3 with syringe 4-1, sacculus body 3 is filled given size, sacculus body 3 is in flat chessman shape, and radial dimension is greater than axial dimension more than 1.3 times, now in syringe 4-1, push rod 4-1-1 drives packed-piston 4-1-2 to travel forward, and its frictional force with cylindrical shell 4-1-3 is with no significant difference compared with standard syringe or slightly larger than standard syringe; Close two-way valve 4-2, drag down sacculus body 3, observe until calculus is hauled out biliary tract under X-ray, in motor process, sacculus body 3 reduces with the apparent friction of biliary tract wall, and calculus is not easily from the slippage of sacculus body end face simultaneously; After completing aforesaid operations, open two-way valve 4-2, sacculus body 3 will be returned to original state, now, push rod 4-1-1 in syringe 4-1 drives packed-piston 4-1-2 motion, the apparent friction of itself and cylindrical shell 4-1-3 is greater than standard syringe, and this can control the reply speed of sacculus body 3, solves internal pressure that the change due to sacculus shape causes and increases the problem that problem and the sacculus body that caused by it fill rear reply excessive velocities.After sacculus body is returned to original state, repeat aforesaid operations, until calculus is taken out completely.
In addition, as another example of the present embodiment, as shown in Figure 9, two-way valve 4-2 can comprise a Unidirectional flow-limiting catch 4-2-4 further, and the upper end of this Unidirectional flow-limiting catch 4-2-4 is fixed in the draw-in groove of stopcock 4-2-1 handle portion, and catch entirety is placed in the cock body of stopcock 4-2-1, when filling sacculus body, constrictor is opened does not have metering function, and when sacculus body is replied, constrictor cannot be opened and play metering function.
Embodiment 4
In example 4, as shown in fig. 10-15, the syringe 4-1 in full response agency 4 is a speed change full reply adjustment structure, the full adjustment structure of replying of this speed change comprises: adjusting rod 4-1-4, packed-piston 4-1-2, left restriction slide block 4-1-6, right restriction slide block 4-1-7, regulation valve body 4-1-5.
Wherein, packed-piston 4-1-2 is fixed on adjusting rod 4-1-4, adjusting rod 4-1-4 can drive packed-piston 4-1-2 to move back and forth in regulation valve body 4-1-5, left restriction slide block 4-1-6 is relative with regulation valve body 4-1-5 with right restriction slide block 4-1-7 fixing respectively, and right restriction slide block 4-1-7 is also relative with regulation valve body 4-1-5 fixing; Left restriction slide block 4-1-6 and right restriction slide block 4-1-7 is set on adjusting rod 4-1-4, left restriction slide block 4-1-6 is provided with four draw-in grooves 4-1-6-1,4-1-6-2,4-1-6-3,4-1-6-4 simultaneously, right restriction slide block 4-1-7 is provided with 2 boss 4-1-7-1,4-1-7-2, right restriction slide block 4-1-7 is also provided with screw thread, can engages each other with the screw thread on adjusting rod 4-1-4.
In the present embodiment to get the operating process of stone sacculus as follows: during original state, 2 boss that right restriction slide block 4-1-7 is provided with are separately fixed at the draw-in groove 4-1-6-1 of left restriction slide block 4-1-6, in 4-1-6-2, on the screw thread on right restriction slide block 4-1-7 and adjusting rod 4-1-4, screw thread is in engagement; When sacculus body is filled, pull right restriction slide block 4-1-7, boss 4-1-7-1 and 4-1-7-2 is made to be separately fixed at the draw-in groove 4-1-6-3 of left restriction slide block 4-1-6, in 4-1-6-4, screw thread now on right restriction slide block 4-1-7 and the screw thread of adjusting rod 4-1-4 are in released state, promote adjusting rod 4-1-4 and fill sacculus body 3; Sacculus body 3 is along with the motion of adjusting rod 4-1-4, and full change is large gradually, until arrive maximum full size, closes two-way valve 4-2; When sacculus body 3 is replied, open two-way valve 4-2, promote right restriction slide block 4-1-7 to original state, screw-threaded engagement on the screw thread namely on right restriction slide block 4-1-7 and adjusting rod 4-1-4, slowly rotate backward adjusting rod 4-1-4, sacculus body 3 slowly returns to original state; Adopting in this way can the reply speed of manual control sacculus body 3, solves the problem that the intrinsic pressure increase of sacculus body that causes because sacculus shape changes and sacculus body rapid desufflation are replied.
In addition, as shown in figure 15, on the basis of any one embodiment above, stone sacculus of getting of the present utility model also comprises development section 5, and development section 5 at least comprises two development parts, its can by X-ray not transmission metal part make.Development part is fixed on the outside of sacculus body 3 both ends of the surface or one of them development part also can be arranged in sacculus body near the other end place.Development part can be connected by bind wire with between sacculus body.This development part is ring-type in this specific embodiment, and fixed cover is located at the end of sacculus body, and development part is not limited to the shape of this specific embodiment certainly.By arranging this structure, during work, get stone sacculus and enter in patient's biliary tract along seal wire, can under X-ray by development part observe the expection of sacculus body suitable get stone position, be conducive to making operator to find fast like this and suitable get stone position, make to get stone better effects if.
Preferably, the present embodiment get in stone sacculus, sheath pipe 2 can also include two autonomous channels, and now, one of them inner chamber is sacculus lumenal passageway, and another inner chamber is silk guide passage or injection canal; Interface 1 is communicated with the near-end of the sacculus lumenal passageway of sheath pipe 2.For silk guide passage, silk guide passage be communicated with guidewire interface proximally by injection moulding or other on-link mode (OLM)s, pass through for seal wire.
Operationally, first seal wire one termination is inserted in patient's biliary tract, another termination of seal wire is stretched out from guidewire interface through silk guide passage, following sheath pipe 2 and sacculus body 3 enter in patient's biliary tract along seal wire, and sacculus body is placed in calculus upper end, then inflated sacculus body by interface and sheath pipe with the air-flow that syringe produces, after sacculus body is fully filled, namely radially dimension D is greater than the flat of axial dimension H, pulls sacculus body that calculus is cleared out of biliary tract by sheath pipe.
By the guiding of seal wire, getting stone sacculus, to enter the biliary tract of narrow elongate more smooth and easy.And then raising procedure efficiency, reduce patient suffering.
With reference to Figure 17 and Figure 18, on the basis of any one embodiment aforementioned, sheath pipe 2 can also comprise three autonomous channels, and these three autonomous channels are respectively sacculus lumenal passageway 2-1, silk guide passage 2-2 and injection canal 2-3; The near-end of described sacculus lumenal passageway 2-1 is communicated with interface 1; Silk guide passage 2-2 is communicated with guidewire interface 6 proximally by injection moulding or other on-link mode (OLM)s, passes through for seal wire; Injection canal 2-3 is communicated with injection interface 7 proximally by injection moulding or other on-link mode (OLM)s, can be used for injection of contrast medium or water.
The present embodiment operationally, first seal wire one termination is inserted in patient's biliary tract, another termination of seal wire is stretched out from guidewire interface through silk guide passage, following sheath pipe 2 and sacculus body 3 enter in patient's biliary tract along seal wire, and sacculus body is placed in calculus upper end, observe by contrast agent the position that sacculus body enters patient's biliary tract under X-ray, then sacculus body is inflated by interface and sheath pipe with the air-flow that syringe produces, after sacculus body is fully filled, namely radially dimension D is greater than the flat of axial dimension H, pulls sacculus body that calculus is cleared out of biliary tract by sheath pipe.
After surgery, water or other fluids cleaning patient biliary tract can also be injected by injection canal.
By arranging silk guide passage and injection canal, make to get stone more smooth and easy, convenient; And then improve procedure efficiency, shorten operating time, decrease patient suffering.
Content described in this description embodiment is only enumerating the way of realization that utility model is conceived; protection domain of the present utility model should not be regarded as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also conceives the equivalent technologies means that can expect according to this utility model based on those skilled in the art.
Claims (12)
1. get a stone sacculus, it is characterized in that: comprise interface, sheath pipe and sacculus body, one end of described sheath pipe connects described interface, and the other end is sheathed and be fixed with described sacculus body, and described sheath pipe is provided with aperture at sheathed described sacculus body place; Described sacculus body is radial telescopic, and described sacculus body after full radially size be greater than the flat of axial dimension.
2. get stone sacculus as claimed in claim 1, it is characterized in that: after described sacculus body is fully full, radial dimension is more than 1.3 times of axial dimension.
3. get stone sacculus as claimed in claim 1, it is characterized in that: after described sacculus body is fully full, radial dimension is more than 2 times that effectively can fill partial-length.
4. get stone sacculus as claimed in claim 1, it is characterized in that: described sacculus body is flat pieces of chess shape after full.
5. get stone sacculus as claimed in claim 1, it is characterized in that: described sacculus body is provided with and fills and shrink the full response agency of replying for carrying out sacculus body, this full response agency comprises syringe, two-way valve, described syringe is connected to one end of described two-way valve, and the other end of described two-way valve is connected with described interface.
6. get stone sacculus as claimed in claim 5, it is characterized in that: described full response agency is provided with one-way current-limiting structure, described one-way current-limiting structure is connected between described syringe and described two-way valve,
Wherein, described one-way current-limiting structure comprises:
Valve body:
Be arranged at the end side of described valve body and connect the outer locked joints of described two-way valve;
Adjusting knob, its body of rod comprising adjusting tap and be connected with described adjusting tap, described adjusting tap is positioned at the top outside described valve body, and the described body of rod is placed in described valve body;
Sealing ring, it is fixed on the lower end of the described body of rod;
Spring, it is fixedly installed in the inner upper of described valve body and is sheathed on the described body of rod, contacts with the described sealing ring being fixed on described body of rod lower end simultaneously.
7. get stone sacculus as claimed in claim 5, it is characterized in that: described syringe comprises injection cylinder, push rod and packed-piston, described packed-piston is arranged on described push rod, described push rod is installed in described injection cylinder, the barb structure that when described packed-piston is one-way movement, frictional force increases or the structure for frictional force increase during bidirectional-movement.
8. get stone sacculus as claimed in claim 5, it is characterized in that:
Described two-way valve comprises: stopcock, valve body, joint, Unidirectional flow-limiting catch, wherein, the handle part of described stopcock is above described valve body, the cock body of described stopcock is placed in described valve body, described joint is positioned at described valve body side, the upper end of described Unidirectional flow-limiting catch is fixed in the draw-in groove of described stopcock handle portion, and described Unidirectional flow-limiting catch entirety is placed in described stopcock cock body.
9. get stone sacculus as claimed in claim 5, it is characterized in that: described syringe is set to speed change and fills adjustment structure, this speed change fills adjustment structure and comprises adjusting rod, packed-piston, restriction slide block and regulation valve body; Described restriction slide block comprises left restriction slide block and right restriction slide block; Described packed-piston is fixed on described adjusting rod, and described adjusting rod can drive described packed-piston to move back and forth in described regulation valve body; Described left restriction slide block is located on described adjusting rod relative with described regulation valve body fixing with described right restriction slide block set.
10. get stone sacculus as claimed in any one of claims 1-9 wherein, it is characterized in that: described sheath Guan Weishuan inner-cavity structure, one of them inner chamber is sacculus lumenal passageway, and another inner chamber is silk guide passage or injection canal; Interface is communicated with the near-end of the sacculus lumenal passageway of described sheath pipe.
11. get stone sacculus as claimed in any one of claims 1-9 wherein, it is characterized in that: described sheath Guan Weisan inner-cavity structure, and these three inner chambers are respectively sacculus lumenal passageway, silk guide passage and injection canal; The near-end of described sacculus lumenal passageway is communicated with described interface; The near-end of described silk guide passage is communicated with guidewire interface, and the near-end of described injection canal is communicated with injection interface.
12. get stone sacculus as claimed in any one of claims 1-9 wherein, it is characterized in that: also can comprise development section, described development section at least comprises two development parts, described development part has a side being positioned at described sacculus body at least, remaining development part is positioned at the other side of sacculus body or is positioned at the inner other side near sacculus body of sacculus body, and is connected with sheath pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372757.3U CN204734518U8 (en) | 2015-10-23 | 2015-06-02 | Get stone sacculus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372757.3U CN204734518U8 (en) | 2015-10-23 | 2015-06-02 | Get stone sacculus |
| CN201520051037.7 | 2015-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN204734518U true CN204734518U (en) | 2015-11-04 |
| CN204734518U8 CN204734518U8 (en) | 2016-05-11 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431573A (en) * | 2018-09-11 | 2019-03-08 | 广东省第二人民医院（广东省卫生应急医院） | A kind of sacculus and application method of collectable fragment and support cavity |
| CN116687493A (en) * | 2023-06-21 | 2023-09-05 | 济宁医学院 | Liver gate blocking device under laparoscope |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431573A (en) * | 2018-09-11 | 2019-03-08 | 广东省第二人民医院（广东省卫生应急医院） | A kind of sacculus and application method of collectable fragment and support cavity |
| CN116687493A (en) * | 2023-06-21 | 2023-09-05 | 济宁医学院 | Liver gate blocking device under laparoscope |
| CN116687493B (en) * | 2023-06-21 | 2024-03-19 | 济宁医学院 | Liver gate blocking device under laparoscope |
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Correction item: National priority Correct: 201520051037.7 2015.10.23 CN Number: 44 Page: The title page Volume: 31 |
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Correction item: National priority Correct: 201520051037.7 2015.10.23 CN Number: 44 Volume: 31 |
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Address after: 311100 Building 597 Kangxin Road, Yuhang District, Hangzhou City, Zhejiang Province, 5 and 6 (except Room 103 and 202) Patentee after: Hangzhou Anjisi Medical Science and Technology Co.,Ltd. Address before: Hangzhou Zhenhua Road, Zhejiang province 310030 city of Xihu District (West Lake Science Park) No. 320 building 1-2 Patentee before: HANGZHOU AGS MEDTECH Co.,Ltd. |
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