CN205994544U - Lacing formula ureteral calculus stops extractor - Google Patents
Lacing formula ureteral calculus stops extractor Download PDFInfo
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- CN205994544U CN205994544U CN201620364945.6U CN201620364945U CN205994544U CN 205994544 U CN205994544 U CN 205994544U CN 201620364945 U CN201620364945 U CN 201620364945U CN 205994544 U CN205994544 U CN 205994544U
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Abstract
This utility model is related to a kind of lacing formula ureteral calculus and stops extractor, it is provided with handle, Guan Bing, braiding pipe network and inner core, described braiding pipe network is the tubular reticulum of some one metal wires braidings and far-end is covered with membrane structure, and braiding pipe network two ends are fixed on pipe handle far-end and inner core by fixation kit respectively；Described braiding pipe network does stretching motion under the drive of pipe handle, and its use state is fusiformis, for half fusiformis and near-end is umbrella or umbrella to far-end.Plug shape of the present utility model is more reasonable and is accurately controlled, and is unlikely to deform, the problems such as being more convenient for inserting ureter, be better achieved and block completely, and can adjust shape to solve Incarcerated stone in good time, and its processing technology is practicable.
Description
Technical field
This utility model is related to technical field of medical instruments, specifically, is related to a kind of lacing formula ureteral calculus and stops
Extractor.
Background technology
Urinary system calculus sickness rate is up to 5%-10% it is seen that in any position of kidney, bladder, ureter and urethra, with
Kidney and ureteral calculus are common.Ureteroscope lithotrity carries out rubble through human body natural's tract, has that wound is little and rubble
Definite advantage, is one of essential therapeutic arsenals of current ureteral calculus.However, current ureteroscope lithotrity there is also one
Fixed deficiency：1. in ureter, epimere calculus and stone debris are easily poured in current or the recoil strength refunds kidney of rock breaking tool；
2. ureter intraluminal residual calculus chip lacks efficiently and effectively mode and takes out.
Being blockaded above ureteral calculus by instrument is the important means preventing ureteral calculus from being recoiled back kidney, at present
Clinically also there are some ureter stoppers, such calculus is stopped instrument and also had the function of taking out calculus concurrently under normal circumstances.So
And these ureter stoppers still suffer from certain shortcoming in actual use.
Such as Chinese patent literature CN 200920269281.5, day for announcing 2010.08.25, disclose a kind of compact body
Chamber stopper, including a seal wire, a conduit, a plug that can be axially compressed, described plug is by more than two panels flat
Diaphragm is constituted, and described membrane surface scribbles hydrophilic coating makes each diaphragm mutually bond in flat, sets on diaphragm axial direction
There is at least one can pass through the tube chamber of seal wire, the far-end of diaphragm and seal wire are fixed, tractive guidewire proximal, the plug quilt of expansion
Formed in radial directions in circumferentially distributed bolt shape plug after being compressed axially.This utility model major advantage is with respect to elder generation
The stopper that front monolithic membrane is constituted, its closure is more abundant, can effectively prevent barrier from escaping from the space of stopper.
However, above-mentioned stopper yet suffers from following defect：(1) although diaphragm is made up of flat membrane more than two panels,
Increase compared to monolithic membrane plugging effect, however, diaphragm script is radial direction, after compression, form circumferentially distributed bolt shape envelope
Stifled thing, certainly will still suffer from space in this bolt shape plug, during taking out calculus, still have the probability that calculus is escaped；
(2) far-end of diaphragm and seal wire are fixed, and then form bolt shape plug, the plug periphery shape being thusly-formed under seal wire tractive
Can shape know, preferably agree with to block completely with urine output tube shape, its effect is also uncertain；(3) formed by diaphragm
Bolt shape plug profile be not easy to artificially precise control, can not adjust as desired during taking stone in good time, or adjustment
Effect on driving birds is not good afterwards；(4) membrane surface scribbles hydrophilic coating makes each diaphragm mutually bond in flat it is thus possible to not arrive in diaphragm
When reaching calculus upper end, the bonding between diaphragm is just destroyed and spreads out, poor controllability, is easily caused calculus and moves in placement process
Position or places unsuccessfully, and membrane surface hydrophilic coating make the mutually bonding of each diaphragm processing technology itself requirement higher.
Therefore, need a kind of plug shape badly more rationally and controlled, be unlikely to deform, in order to closure completely, adjust in good time
Whole and convenient placement, and the practicable ureteral calculus of processing technology stops extractor, but at present with regard to such device also
Have no report.
Content of the invention
The purpose of this utility model is for deficiency of the prior art, provides a kind of lacing formula ureteral calculus to stop and takes
Go out device.
For achieving the above object, this utility model adopts the technical scheme that：
A kind of lacing formula ureteral calculus stops extractor, is provided with handle, Guan Bing, braiding pipe network and inner core, described volume
Knit the tubular reticulum that pipe network is some one metal wire braidings and far-end is covered with membrane structure, braiding pipe network two ends are passed through solid respectively
Determine assembly to be fixed on pipe handle far-end and inner core；Described braiding pipe network does stretching motion under the drive of pipe handle, described volume
The use state knitting pipe network is fusiformis, for half fusiformis and near-end is umbrella or umbrella to far-end.
Described tinsel weaves for skew crossing；Or the tinsel of near-end side weaves for skew crossing, and wherein
Some wire elongation to far-end side and adjacent wire is mutually wound around, finally its far-end is gathered together.
Described radical wiry is the integer between 4～200, and described braiding pipe network can be by equal diameter gold
Belong to silk or two kinds and the interval braiding of two or more diameter metal silk forms.
It is arranged with position-limiting tube, fixation kit and braiding are passed through in the stage casing of described position-limiting tube between described inner core and pipe handle
Pipe network near-end and pipe handle far-end are fixed together, and the far-end of described position-limiting tube is free end.
Described handle is provided with limit sliding chutes, is equipped with push handle in described limit sliding chutes；Described inner core near-end insertion
In the installing pipe intracavity of handle, and inner core is fixed with handle phase；Described pipe sleeve is connected to the outside of inner core, and pipe handle proximal end is inserted
Enter the installing pipe intracavity in handle and fix with push handle phase.
Described push handle is provided with push handle pushing block, is provided with slider bar, below described push handle pushing block below described slider bar
Both side edges be respectively provided with the push handle limiting section of an arc, the lower edge of each push handle limiting section is respectively equipped with push handle limited block again；
Described pipe handle proximal end is provided with stopper slot；Described push handle limited block is embedded in stopper slot, and described push handle limiting section attaches
Dorsal part in pipe handle.
Described handle proximate end end face is provided with limited cover；Described spacing be covered with limited cover bonnet, described is spacing
Lid bonnet inwall is provided with inner core fixed groove；Described inner core proximal end is provided with inner core and fixes ball；Described inner core fixes ball
Match so that inner core is mutually fixed with handle with inner core fixed groove.
Described limited cover inwall is provided with limited cover and installs tooth, and described handle proximate end is provided with limited cover installing hole, described
Limited cover install tooth be inserted in limited cover install in the hole.
Described membrane structure coverage is at least from braiding pipe network far-end to maximum gauge during use state.
Described inner core far-end is provided with flexible end.
Described inner core is a hollow pipe.
During working condition, the maximum gauge of described braiding pipe network is more than or equal to 5 millimeters, less than or equal to 30mm；Maximum straight
The length of footpath section is more than 0 millimeter, less than or equal to 10mm.
This utility model advantage is：
1st, lacing formula ureteral calculus of the present utility model stops extractor, and its plug is the braiding with membrane structure
Pipe network, its shape is controlled to tubulose, fusiformis, for half fusiformis and near-end is umbrella or umbrella to far-end, in use,
Its shape is controllably, is easy to insert ureter, calculus will not be promoted to drive in the wrong direction to kidney and cause ureter wall to damage；Braided tube
Net is difficult deformation in itself, and membrane structure is subject to the excellent support of braiding pipe network to be not easy to deform upon, can be according to patient ureter
Diameter adjusts the outer circumference diameter of braiding pipe network in good time, realizes all the time blocking completely and avoiding damage to ureter wall；Embedding for calculus
Pause and wait fortuitous event, can solve in time.
2nd, lacing formula ureteral calculus of the present utility model stops extractor, is provided with position-limiting tube, and limited cover, push handle, pipe
The structure design of handle and inner core has all ensured that the shape of braiding pipe network can be by artificially precise control.
3rd, lacing formula ureteral calculus of the present utility model stops extractor, its compact conformation, the design of each part for
Preparation technology is less demanding, is practicable, can be prevented effectively from the impact to using effect for the preparation technology.
Brief description
Accompanying drawing 1 is the structural representation of the lacing formula ureteral calculus stop extractor of embodiment 1.
Accompanying drawing 2 is the structural representation of the handle of embodiment 1.
Accompanying drawing 3 is the structural representation of the push handle of embodiment 1.
Accompanying drawing 4A is the front view of the limited cover of embodiment 1.
Accompanying drawing 4B is the C-C sectional view of Fig. 4 A.
Accompanying drawing 4C is the right view of the limited cover of embodiment 1.
Accompanying drawing 5 is the installation diagram of the lacing formula ureteral calculus stop extractor of embodiment 1.
Accompanying drawing 6 is the partial enlarged drawing of A in Fig. 5.
Accompanying drawing 7 is the first use state schematic diagram of the lacing formula ureteral calculus stop extractor of embodiment 1.
Accompanying drawing 8 is the second use state schematic diagram of the lacing formula ureteral calculus stop extractor of embodiment 1.
Accompanying drawing 9 is the third use state schematic diagram of the lacing formula ureteral calculus stop extractor of embodiment 1.
Accompanying drawing 10 is the core arrangement schematic diagram of embodiment 2.
Accompanying drawing 11 is the braiding pipe network structure schematic diagram of embodiment 3.
Accompanying drawing 12 is the first use state schematic diagram of the lacing formula ureteral calculus stop extractor of embodiment 4.
Accompanying drawing 13 is the second use state schematic diagram of the lacing formula ureteral calculus stop extractor of embodiment 4.
Specific embodiment
Present inventor possesses abundant this area research experience, can appreciate that and exists in operation process or may go out
Existing fine defects, and further effectively solving, complete this utility model on this basis.
The specific embodiment below in conjunction with the accompanying drawings this utility model being provided elaborates.
The reference being related in accompanying drawing and ingredient are as follows：
1. handle, 11. limited covers, 111. limited cover bonnets, 112. inner core fixed grooves, 113. limited covers installation teeth, 12.
Push handle installing hole, 13. limit sliding chutes, 14. installation tube chambers, 15. limited cover installing holes, 16. push handle, 161. push handle pushing blocks, 162.
Slider bar, 163. push handle limiting sections, 164. push handle limited blocks
2. pipe handle, 21. stopper slots
3. weave pipe network, 31. tinsels, 32. membrane structures, 33. fixation kits, 34. position-limiting tubes
4. inner core, 41. inner cores fix ball, 42. flexible ends
Embodiment 1
Refer to Fig. 1, Fig. 1 is the structural representation of the lacing formula ureteral calculus stop extractor of embodiment 1.Described
Lacing formula ureteral calculus stops that extractor is provided with handle 1, pipe handle 2, braiding pipe network 3 and inner core 4.Described handle 1 near-end end
Face is provided with limited cover 11.
Refer to Fig. 2, Fig. 2 is the structural representation of the handle of embodiment 1.Described handle 1 dorsal part is provided with push handle and installs
Hole 12 and limit sliding chutes 13, described push handle installing hole 12 is located at the near-end of limit sliding chutes 13 and the two mutually company of passing through.Handle 1 is provided with
The installation tube chamber 14 proximally and distally connecting.Handle 1 near-end dorsal part is provided with two limited cover installing holes 15, and described two limit
Position lid installing hole 15 is symmetrical with respect to limit sliding chutes 13 axial direction.
Refer to Fig. 1 again, in the described limit sliding chutes 13 of handle 1, be equipped with push handle 16.Specifically refer to Fig. 3, Fig. 3 is
The structural representation of the push handle of embodiment 1.Described push handle 16 is provided with push handle pushing block 161, sets below described push handle pushing block 161
There is slider bar 162, the both side edges below described slider bar 162 are respectively provided with the push handle limiting section 163 of an arc, each push handle
The lower edge of limiting section 163 is respectively equipped with push handle limited block 164 again, and described push handle limited block 164 is cylindric, its short transverse
The plane being located perpendicular to push handle pushing block 161 veutro.
Refer to Fig. 4 A, Fig. 4 B, Fig. 4 C, Fig. 4 A is the front view of the limited cover of embodiment 1, Fig. 4 B is that the C-C of Fig. 4 A cuts open
View, Fig. 4 C is the right view of the limited cover of embodiment 1.Described limited cover 11 near-end is closing, is provided with limited cover bonnet
111, described limited cover bonnet 111 inwall central authorities are provided with inner core fixed groove 112.The inwall of limited cover 11 dorsal part is provided with two
Limited cover installs tooth 113.
Refer to Fig. 5, Fig. 5 is the installation diagram of the lacing formula ureteral calculus stop extractor of embodiment 1.Described pipe handle
2 is hollow pipe, and its near-end is provided with the stopper slot 21 (can be found in Fig. 6, Fig. 6 is the partial enlarged drawing of A in Fig. 5) of annular.Described
Inner core 4 proximal end is provided with the fixing ball 41 (can be found in Fig. 6, Fig. 6 is the partial enlarged drawing of A in Fig. 5) of inner core, and inner core 4 far-end sets
There is flexible end 42, described flexible end 42 is blunt nosed flexible structure.
During assembling, two limited covers of described limited cover 11 install two limited covers that tooth 113 is respectively inserted into handle 1
So that described limited cover bonnet 111 closes the proximal face of handle 1 in installing hole 15；Described inner core 4 near-end is inserted in
In the installation tube chamber 14 of handle 1, and the fixing ball 41 of inner core is assemblied in the inner core fixed groove 112 of limited cover 11 so that inner core 4
It is relatively fixed with handle 1；Described pipe handle 2 is socketed on the outside of inner core 4, and pipe handle 2 near-end is inserted in the installation tube chamber of handle 1
In 14；Described push handle 16 is assemblied in push handle installing hole 12, and the push handle limited block 164 of push handle 16 is embedded in the spacing of pipe handle 2
So that pipe handle 2 is relatively fixed with push handle 16 in groove 21, push handle limiting section 163 is attached at the dorsal part of pipe handle 2, and slider bar 162 can be
Move in limit sliding chutes 13, and then pipe handle 2 can be driven to slide with respect to inner core 4 when push handle 16 is mobile.
Described braiding pipe network 3 is the tubular reticulum of some one metal wire 31 interlacings, and braiding pipe network 3 is covered with film
Shape structure 32.Braiding pipe network 3 two ends are fixed on pipe handle 2 far-end and the flexible end 42 of inner core 4 by fixation kit 33 respectively.
It is arranged with position-limiting tube 34, specifically, fixation kit 33 is passed through in described position-limiting tube 34 stage casing between described inner core 4 and pipe handle 2
It is fixed together with braiding pipe network 3 proximal end and pipe handle 2 distal tip, the far-end of position-limiting tube 34 is free end；Described
Inner core 4 can relative be slided with position-limiting tube 34.
Based on above structure, slided by relative between the controlled tubulation handle 2 of push-and-pull push handle 16 and inner core 4, thus driving volume
Knit pipe network 3 and do stretching motion.When proximally pulling push handle 16, braiding pipe network 3 can be pulled into diameter minimum, the longest shape of length
State, this state is instrumentation use state；When promoting push handle 16 to far-end, braiding pipe network 3 can be pushed into the use of apparatus
State, the first use state is that (referring to Fig. 7, Fig. 7 is that the lacing formula ureteral calculus of embodiment 1 stops extractor to fusiformis
The first use state schematic diagram), such as continue to promote push handle 16 to far-end, then described braiding pipe network 3 change of shape is second
Kind of use state, that is, far-end is half fusiformis, the depression of proximate direction forms umbrella and there is radially maximum sized position
For one section, (referring to Fig. 8, Fig. 8 is that the lacing formula ureteral calculus of embodiment 1 stops that the second use state of extractor is illustrated
Figure), or described braiding pipe network 3 change of shape is the third use state, i.e. umbrella and there is radially maximum sized portion
Position is only a point, and (referring to Fig. 9, Fig. 9 is the third use state of the lacing formula ureteral calculus stop extractor of embodiment 1
Schematic diagram)；After push handle 16 promotes to a certain extent to far-end, due to position-limiting tube 34 and fixation kit 33 inconsistent so that push handle
16 motions are restricted, and then limit the shape of braiding pipe network 3.
It should be noted that herein it is stipulated that instrument handle end is near-end, the other end is far-end.Described " dorsal part " is device
Towards the side of surface during tool use state, described " veutro " is side during instrumentation state towards underface.
The radical of described tinsel 31 is the integer between 4～200, and braiding pipe network 3 can be by equal diameter metal
Silk or two kinds and two or more diameter metal silk interval braiding form, can have multiple type of weaves.Described fixation kit 33
Can be annular thin wall metal tube, the tube being entwined for fine wire, alternatively binding agent, but it is not limited only to this, only
Corresponding assembly can be fixed.Described membrane structure 32 can be placed in braiding pipe network 3 outer surface, inner surface or be in metal
Between silk 31.By arranging the range of movement of push handle 16, the length of position-limiting tube 34 or the length of limit sliding chutes 13 are such as set, permissible
Braiding pipe network 3 is moulded different shapes.Described pipe handle 2 is hollow and thin-walled pipe, and material can be metal, plastics, macromolecule material
Material, polymer etc..Part in addition to flexible end 42 for the described inner core 4 can be rigid metal bar or hollow metal pipe construction.
Described fixation kit 33, position-limiting tube 34 are being prepared with pipe handle 2, the assembling mode weaving between pipe network 3, inner core 4
All possesses extremely strong actual operability, the quality of preparation technology will not produce significantly to instrumentation effect in technique
Impact.Described 3 tubular reticulums as the braiding of some one metal wires 31 of braiding pipe network, can control its shape by push handle 16
Shape, has an advantage in that：In a first aspect, being easy to the placement of apparatus, in placement process will not deformation, do not easily cause calculus displacement；
Second aspect, membrane structure 32 braiding pipe network 3 support under, during dragging will not because current perfusion, calculus touch and
Deform upon, be difficult to omit calculus and Incarcerated stone occurs；The third aspect, braiding pipe network 3 shape be always tubulose, fusiformis,
For half fusiformis, near-end is umbrella or umbrella to far-end, and under use state, periphery is always circular, can be well with urine output tube shape
Agree with, realize blocking completely；Wherein, under second use state, the presence of braiding pipe network 3 is radially one section in maximum sized position,
Plugging effect is more preferable；Described braiding pipe network 3 assumes second use state or the third use state by tinsel 31
The factors such as the distance of radical, length and push determine, its shape is controlled in a word, and ensure that its radial direction full-size is 5-
To fit tightly with ureter wall within 30mm, the length weaving pipe network 3 maximum gauge section under use state is preferably greatly
In 0 millimeter, less than or equal to 10mm；Fourth aspect, when something unexpected happened such as Incarcerated stone, can adjust braiding pipe network 3 in time
Outer circumference diameter, with quick solve problem, prevents from ureter wall being caused damage, such as closure is complete or weaves pipe network 3 outer circumference diameter mistake
When big, also can adjust in good time.Described membrane structure 32 coverage is at least from braiding pipe network 3 far-end to during use state
At maximum gauge, that is, overlay film scope at least covers the upper semisection of braiding pipe network 3, ensures to make when apparatus is in ureter with this
When using state, when to water filling in ureter, after water runs into the membrane structure 32 above braiding pipe network 3, due to drag effect
To ureter flowing underneath, i.e. the effect of membrane structure 32 is the direction changing current so that current can sweep along calculus broken
Consider to be worth doing and discharge to intravesical, and membrane structure 32 is under the support of braiding pipe network 3, its shape is also controlled and be difficult deformation, and
Fit with ureter wall, and then realize closure completely and disposably take stone, rubble will not be omitted.The flexibility of described inner core 4
End 42 can improve when apparatus inserts in ureter by performance, and reduce collateral damage probability.
The structure design of described limited cover 11 and limited cover installing hole 15 ensure that the two can stably be fixed.Described is interior
The structure design of core fixed groove 112 and the fixing ball 41 of inner core ensure that handle 1 and inner core 4 can stably be fixed.Described push handle
16 dorsal part of push handle limiting section 163, push handle limited block 164 and pipe handle 2 and stopper slot 21 match, and its structure is simple, and
Can ensure that pipe handle 2 and the stable fixation of push handle 16.Described position-limiting tube 34 can limit the shape of braiding pipe network 3, and will weave pipe network 3
Proximal end and pipe handle 2 distal tip are fixed on the middle section position of position-limiting tube 34, and described " stage casing " refers to that position-limiting tube 34 removes closely
1/3 section in the middle of end end and the section of distal tip, preferably position-limiting tube 34, so can ensure to limit during pushing
Position pipe 34 keeps translation, it is to avoid trickle deflection.Above structure design all makes the compact conformation of this utility model apparatus,
And further ensure that the shape weaving pipe network 3 can be by artificially precise control.
Lacing formula ureteral calculus of the present utility model stops that the using method of extractor is as follows：Ureteroscope lithotrity
When, insert endoscope in advance, find calculus, if strangulated calculus, can first introduce laser fiber extremely can by calculus partial crushing
It is advisable by this utility model apparatus, if non-strangulated calculus, can introduce this utility model apparatus；First take this practicality apart new
The lacing formula ureteral calculus of type stops the packaging of dispatching from the factory of extractor, hand-held handle 1, proximally pulls push handle 16, by braided tube
Net 3 pulls into diameter minimum, length long status are instrumentation use state；By the flexible end 42 of inner core 4 be inserted in peep
In mirror service aisle, so that apparatus bypasses calculus and reaches above calculus under endoscope's direct-view guiding, then promote to far-end
Push handle 16 pushes into the use state of apparatus by weaving pipe network 3；If calculus fragment appropriate diameter is from excluding in ureter to intravesical,
Then by endoscopic working channel to water filling in ureter, and can proximally drag lacing formula ureteral calculus of the present utility model
Stop extractor, perfusion current constantly impact the membrane structure 32 in braiding pipe network 3, and calculus fragment is dammed and backwashes downwards,
Now current sweep along calculus fragment, are finally dragged to intravesical；If calculus crumb size is larger, also need to be further introduced into swashing
Light is crushed, then can dismantle the limited cover 11 on handle and push handle 16 successively, to realize handle 1 body and inner core 4
It is separated with pipe handle 2, assists fixing this utility model apparatus position not in vivo to be moved by assistant, patient is by ureter
Inner core 4 and pipe handle 2 are inserted handle after withdrawing from vitro by mirror more successively, load onto push handle 16, finally load onto limited cover 11, and apparatus assembles
After good, the push handle 16 on driving handle 1 is in sealed condition to braiding webmaster 3, then row inserts ureteroscope, introduces optical fiber and enters
Row rubble operates, and after calculus is completely broken, withdraws from laser fiber, repeats above-mentioned water filling and the behaviour dragging downwards stopper tool
Make, until calculus is gone out completely to intravesical.In operating process, such as there is the fortuitous event of Incarcerated stone, can adjust in time
Push handle 16 alleviates problem to adjust braiding pipe network 3 shape, and can adjust braiding pipe network 3 according to patient ureter week footpath in good time
Outer circumference diameter tightly fitted with realizing and ureter wall is not caused damage.
Lacing formula ureteral calculus of the present utility model stops that extractor shape can be by artificially precise control it is easy to insert
Ureter, will not promote calculus to drive in the wrong direction to kidney and cause ureter wall to damage, and it is defeated to block completely to adjust shape in good time
Urinary catheter, effectively prevents calculus and stone debris to be poured in current refunds kidney, is not susceptible to the situation of Incarcerated stone, drags and take stone
Process is unlikely to deform and rubs ureter wall, can disposably take out whole calculus, reach efficient calculus removing purpose.
Lacing formula ureteral calculus of the present utility model stops that extractor cannot be only used for closure and the shifting of ureteral calculus
Remove, apply also for the closure of other body cavitys and foreign body removes, including but not limited to following application：Closure for renal calculuss and
Remove, the closure of vascular thrombosis and removing, blood vessel puncture closure hemostasis, the closure of body cavity foreign body and removing as trachea, intestinal
The process of middle foreign body.
Embodiment 2
The lacing formula ureteral calculus of the present embodiment stops extractor and the lacing formula ureteral calculus resistance described in embodiment 1
Gear extractor is essentially identical, and difference is (referring to Figure 10, Figure 10 is the core arrangement schematic diagram of embodiment 2)：Described
Inner core 4 is a homogenizing hollow pipe, and the inner core starting to inner core 4 near-end from inner core 4 far-end fixes ball 41, and its central authorities is provided with insertion
Cavity.The program need to coordinate other seal wire as guide instrument when being used, and seal wire can be inserted from fixing ball 41 side of inner core
Enter, expose seal wire to inner core 4 far-end and be advisable.
Embodiment 3
The lacing formula ureteral calculus of the present embodiment stops extractor and the lacing formula ureteral calculus resistance described in embodiment 1
Gear extractor is essentially identical, and difference is (referring to Figure 11, Figure 11 is the braiding pipe network structure schematic diagram of embodiment 3)：Institute
The braiding pipe network 3 stated is spindle shape structure in the first use state, and that is, central section is a cylinder, and this is cylindrical outer
All diameters are maximum.The braiding pipe network 3 of this kind of shape has longer diameter maximum section, can preferably with ureter wall
Fit tightly, obtain more preferable rubble retention and prevent Incarcerated stone effect.
Embodiment 4
Refer to the first use that the lacing formula ureteral calculus that Figure 12 and 13, Figure 12 is embodiment 4 stops extractor
View, Figure 13 is the second use state schematic diagram of the lacing formula ureteral calculus stop extractor of embodiment 4.This
The lacing formula ureteral calculus of embodiment stops that extractor stops extractor base with the lacing formula ureteral calculus described in embodiment 1
This is identical, and difference is：The tinsel 31 of described braiding pipe network 3 near-end side weaves for skew crossing, and therein
Some tinsels 31 extend to far-end side and adjacent wire 31 is mutually wound around, and finally its far-end is gathered together, i.e. institute
Braiding its tinsel 31 of pipe network 3 stated transits to the mutual by more than two tinsels 31 of far-end by the skew crossing braiding of near-end
It is wound around the form supporting.Described membrane structure 32 is overlying on the far-end side of braiding pipe network 3.Under use state, work as driving handle
When, whole braiding pipe network 3 can be the first use state in fusiformis, and the near-end side of described braiding pipe network 3 also can be entered one
Step pushes the inside of far-end side, present far-end be half fusiformis, near-end be the form of umbrella.Advantage of this embodiment is that, far
The braiding pipe network 3 of end side is mutual winding due to its tinsel 31, therefore possesses higher distracting force, thus being more conducive to exist
Keep the shape of closure in ureter, reach more preferable plugging effect.
The above is only preferred implementation of the present utility model it is noted that common skill for the art
Art personnel, on the premise of without departing from this utility model method, can also make some improvement and supplement, these improve and supplement
Also should be regarded as protection domain of the present utility model.
Claims (12)
1. a kind of lacing formula ureteral calculus stops extractor it is characterised in that being provided with handle, Guan Bing, braiding pipe network and inner core,
Described braiding pipe network is the tubular reticulum of some one metal wires braidings and far-end is covered with membrane structure, and braiding pipe network two ends are divided
It is not fixed on pipe handle far-end and inner core by fixation kit；Described braiding pipe network does stretching motion under the drive of pipe handle,
The use state of described braiding pipe network is fusiformis, for half fusiformis and near-end is umbrella or umbrella to far-end.
2. lacing formula ureteral calculus according to claim 1 stops extractor it is characterised in that described tinsel is
Skew crossing weaves；Or the tinsel of near-end side weaves for skew crossing, and some wire elongation therein are to far-end
Side and adjacent wire is mutually wound around, finally its far-end is gathered together.
3. lacing formula ureteral calculus according to claim 1 stops extractor it is characterised in that described is wiry
Radical is the integer between 4～200, and described braiding pipe network can be by equal diameter tinsel or two kinds and two or more straight
Footpath tinsel interval braiding forms.
4. lacing formula ureteral calculus according to claim 1 stops extractor it is characterised in that described inner core and pipe
It is arranged with position-limiting tube, the stage casing of described position-limiting tube passes through fixation kit and braiding pipe network near-end and pipe handle far-end is solid between handle
It is scheduled on together, the far-end of described position-limiting tube is free end.
5. lacing formula ureteral calculus according to claim 1 stops extractor it is characterised in that described handle is provided with
Limit sliding chutes, are equipped with push handle in described limit sliding chutes；Described inner core near-end is inserted in the installing pipe intracavity of handle, and interior
Core is fixed with handle phase；Described pipe sleeve is connected to the outside of inner core, and pipe handle proximal end is inserted in the installing pipe intracavity of handle simultaneously
Fix with push handle phase.
6. lacing formula ureteral calculus according to claim 5 stops extractor it is characterised in that described push handle is provided with
Push handle pushing block, is provided with slider bar below described push handle pushing block, and the both side edges below described slider bar are respectively provided with an arc
Push handle limiting section, the lower edge of each push handle limiting section is respectively equipped with push handle limited block again；Described pipe handle proximal end is provided with spacing
Groove；Described push handle limited block is embedded in stopper slot, and described push handle limiting section is attached at the dorsal part of pipe handle.
7. lacing formula ureteral calculus according to claim 1 stops extractor it is characterised in that described handle proximate end
End face is provided with limited cover；Described spacing be covered with limited cover bonnet, described limited cover bonnet inwall is provided with inner core and fixes
Groove；Described inner core proximal end is provided with inner core and fixes ball；The fixing ball of described inner core and inner core fixed groove match and make
Obtain inner core to fix with handle phase.
8. lacing formula ureteral calculus according to claim 7 stops extractor it is characterised in that in described limited cover
Wall is provided with limited cover and installs tooth, and described handle proximate end is provided with limited cover installing hole, and described limited cover is installed tooth and is inserted in limit
Position lid installs in the hole.
9. lacing formula ureteral calculus according to claim 1 stops extractor it is characterised in that described membrane structure
Coverage is at least from braiding pipe network far-end to maximum gauge during use state.
10. lacing formula ureteral calculus according to claim 1 stops extractor it is characterised in that described inner core is remote
End is provided with flexible end.
11. lacing formula ureteral calculus according to claim 1 stop extractor it is characterised in that described inner core is
One hollow pipe.
12. lacing formula ureteral calculus according to claim 1 stop extractors it is characterised in that during working condition, institute
The maximum gauge stating braiding pipe network is more than or equal to 5 millimeters, less than or equal to 30mm；The length of maximum gauge section is more than 0 millimeter,
Less than or equal to 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620364945.6U CN205994544U (en) | 2016-04-27 | 2016-04-27 | Lacing formula ureteral calculus stops extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620364945.6U CN205994544U (en) | 2016-04-27 | 2016-04-27 | Lacing formula ureteral calculus stops extractor |
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| Publication Number | Publication Date |
|---|---|
| CN205994544U true CN205994544U (en) | 2017-03-08 |
Family
ID=58204072
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620364945.6U Active CN205994544U (en) | 2016-04-27 | 2016-04-27 | Lacing formula ureteral calculus stops extractor |
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| CN (1) | CN205994544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852933A (en) * | 2016-04-27 | 2016-08-17 | 中国人民解放军第二军医大学 | Lacing type ureteral stone blocking dislodger |
| CN111134775A (en) * | 2020-01-22 | 2020-05-12 | 北京弘海微创科技有限公司 | Thrombus collector |
-
2016
- 2016-04-27 CN CN201620364945.6U patent/CN205994544U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852933A (en) * | 2016-04-27 | 2016-08-17 | 中国人民解放军第二军医大学 | Lacing type ureteral stone blocking dislodger |
| CN111134775A (en) * | 2020-01-22 | 2020-05-12 | 北京弘海微创科技有限公司 | Thrombus collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: Lacing type ureteral stone blocking dislodger Granted publication date: 20170308 License type: Exclusive License Record date: 20171128 |