CN208541366U - A kind of plugging device with guidewire lumen - Google Patents

Abstract

The utility model discloses a kind of plugging devices with guidewire lumen, including tip catheter, the plug that can be axially compressed, mandrel, outer tube and Handleset.Mandrel one end passes through plug cavity, outer tube and Handleset, outer cladding tip catheter after the other end extends, and mandrel is set as the hollow tubular structure with both ends open.Pass through the plugging device with guidewire lumen of the utility model, it is not necessary to lead into body cavity by endoscope, and change and guided by seal wire, therefore the size of plugging device is no longer limited by endoscope channel, and then increase closure area, make to block more abundant.

Description

A kind of plugging device with guidewire lumen

Technical field

The medical device more particularly to one kind that the utility model relates to a kind of to block for barrier in body cavity have The plugging device of guidewire lumen

Background technique

Ureteral calculi is Urology Surgery common disease, and 90% or more ureteral calculi is to be formed in kidney and fall into urine output Pipe.Goodnm in 1977 etc. is reported first ureteroscope (URL) is applied to rubble after, due to its have damage it is small, restore it is fast, It can operate repeatedly, the advantages that clear stone is high-efficient, URL has become the common operation method for the treatment of ureteral calculi at present.URL master If ureteroscope is pushed into ureter under television monitoring, after seeing calculus, if calculus is larger, rubble instrument need to be used Rubble is carried out, rubble instrument includes liquid electricity, ultrasound, Pneumatic Lithotripsy (PL), electronic kinetic energy (EKL) and laser (LL) etc..When rubble It keeps getting a clear view with the mode of irrigation.Although URL treatment method has many advantages, such as, but it there is also deficiencies, due to stalk Resistance top ureterectasia and the flushing action of perfusion, fragment during rubble, at the nearly renal plevis of proximal ureteral calculus easily into Enter renal plevis and kidney calices, residual stone in rubble failure or kidney is caused to be formed.

In order to which calculus moves up when reducing URL operation, calculus catching net-like means are often combined to carry out rubble and take stone at present.Calculus catching net-like means Working principle is as follows: calculus catching net-like means may pass through calculus, opens mesh basket and captures calculus, then receives net, calculus is fixed, if calculus It is smaller, then calculus is pulled straight out, if calculus is larger, smashed using rubble instrument, then by splinter of stone calculus catching net-like means It partly or entirely takes out one by one, or waits rubble Self-discharged external.It is fixed although calculus catching net-like means can partially solve calculus The problems such as with stone is taken, but calculus catching net-like means generally can only once capture a calculus, repeatedly take stone operating time long；Calculus catching net-like means are netted Structure, generally in 1mm or more, the calculus for being less than mesh diameter for size is easy to slip through the net its mesh diameter；In processing incarceration Calculus when, blindly take stone with calculus catching net-like means, be likely to result in ureter perforation；Excessive calculus with calculus catching net-like means cover stone and by force Pull-out may cause ureter tearing；The wire of calculus catching net-like means may be interrupted by laser.

Domestic number of patent application CN200810101819 discloses a kind of urinary system stone taking device, You Yigen medical high polymer The composition of pipe made of material, opposite direction bends to circle shape inwardly each other at the both ends of pipe, shaped like pigtail, bends to circle There are 3-5 side opening, diameter 0.1-0.8mm on the both ends tube wall of round, it is small that the middle section of pipe has 10-20 beading to expand Basket is opened made of four opennings on four peripheral walls of pipe etc..There is a tubal bladder mark point in the lower end of pipe, pipe it is upper There is kidney mark point at end, and the top of pipe is tapered tapered tubular；Due to its special beading can expand it is contractile The phenomenon that corbeil substantially increases the success rate for taking stone than existing single calculus catching net-like means, is not in after calculus is entangled and falls off； Whole beading structure plays good supporting role to ureter, block ureter will not by calculus, urine energy in kidney It is enough smoothly to reach bladder.But the instrument covers stone or troublesome, needs one by one to entangle calculus, and cannot prevent completely Calculus moves up when rubble.

It is " a kind of to block the method for barrier in body cavity and its block dress filed in the applicant on April 14th, 2009 Set ", application No. is CN2009100570682, which includes the membranaceous plug of seal wire, conduit, flat, flexible, seal wire One end pass through conduit and plug cavity, plug distal end fixed with seal wire, pull guidewire proximal, the plug of expansion is by axis To compression, bolt shape plug is formed.Ureteral calculi can prevent on rubble when rubble under the closure of the plugging device It moves, after rubble, using the closure function of plugging device, muti-piece rubble can be dragged simultaneously to bladder or ureter sheath, significantly Reduce and takes the stone time.But the plug is monolithic thin film, material is soft, and monolithic membrane is formed by closure after compression folds Object gap is big, and after it blocks calculus, when smashing stone with rubble instrument, rubble is possible to perfusion and energy of the meeting in water It is pierced by from gap under the impact of amount, causes to block insufficient phenomenon；Secondly, monolithic membrane is because gap is big, material is soft, is dragging When moving biggish rubble, the closure power of plug is little, and rubble can be escaped between plug and ureter wall, causes to drag mistake It loses.

Filed in the applicant on November 10th, 2009 " a kind of compact body cavity plugging device ", application No. is CN2009202692815, the plugging device include a seal wire, a conduit, a plug that can be axially compressed, and plug is by two More than piece flat membrane is constituted, and membrane surface is coated with hydrophilic coating, bond each diaphragm mutually in flat, axial in diaphragm Direction, which is equipped at least one, can pass through the lumen of seal wire, and distal end and the seal wire of diaphragm are fixed, and pull guidewire proximal, expansion Plug forms bolt shape plug in radial directions after being axially compressed.Relative to the plugging device that monolithic membrane is constituted, its envelope It is stifled more abundant, barrier can be effectively prevent to escape from the gap of plug.But the plugging device must be guided by endoscope Size into body cavity, therefore product is restricted, and can not be greater than the line size of endoscope, is blocked area and is restricted, leads Cause plugging effect bad；Secondly, seal wire is solid mandrel, fluid injection can not be carried out to plugging device and drawing liquid operates.

Utility model content

The purpose of this utility model be the applicant has been applied application No. is 200920269281.5 it is " a kind of compact Body cavity plugging device " patent improves, a kind of plugging device with guidewire lumen, the seal wire of mandrel hollow tubular structure are provided Plugging device can be introduced body cavity by seal wire, to guide using seal wire by chamber, to thrombus, the calculus etc. in body cavity Barrier carries out closure fixation, then can remove it out body cavity according to specific needs, connects in addition, mandrel end connects Rule Head after extracting seal wire out, can be injected or be extracted out liquid to body cavity by female Luer, keep the intracorporal pressure of people appropriate.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows:

A kind of plugging device with guidewire lumen, including tip catheter, the plug that can be axially compressed, mandrel, outer tube And Handleset.Mandrel one end passes through plug cavity, outer tube and Handleset, outer cladding tip catheter after the other end extends. Mandrel is set as the hollow tubular structure with both ends open.

Further, the end of mandrel is connected with female Luer.

Further, outer tube one end passes through plug cavity, and extended part forms tip catheter, the other end and handle group Part connection.

Further, part of the outer tube in plug cavity is set as compressible spring tube structure.

Further, outer tube is set as double cavity structure, is divided into guidewire lumen and mandrel chamber.

Further, outer tube increases the branch pipe with female Luer close to the part of Handleset, and branch pipe is connected to guidewire lumen.

Further, tip catheter is high molecular polymer casing, and round and smooth processing is done on head.

Further, it is characterised in that: tip catheter is provided with developing ring on the outer peripheral surface of plug.

Further, plug is made of foliaceous closure part.

Further, foliaceous closure part surface has hydrophilic coating.

A kind of plugging device with guidewire lumen provided by the utility model, it is not necessary to lead into body by endoscope Chamber, and change and guided by seal wire, therefore the size of plugging device is no longer limited by endoscope channel, and then increase plugging surface Product makes to block more abundant；Secondly, hollow tubular structure guidewire lumen connection female Luer after, can to body cavity carry out fluid injection and Drawing liquid keeps the intracorporal pressure of people appropriate.

Utility model device can be applied to the closure and removal of kidney stone, can also be applied to the temporary of other multiple body cavitys When property blocks, including but not limited to following application: can be used for the closure and removal of ureteral calculi, the closure of vascular thrombosis and It removes, blood vessel puncture, which blocks, to stop blooding, the closure and removal of body cavity foreign matter such as tracheae, the processing of the foreign matter in enteron aisle.This is practical Novel plugging device can be used for the permanent closure of body cavity, especially for body cavity fluid flow direction or flow control, such as blood The occasions such as pipe, ventricle, fallopian tubal.The body cavity method for blocking and device of the utility model are particularly suitable for the envelope of upper urinary stone It is stifled, fixed and remove, compared with the existing technology in calculus catching net-like means, operation doctor do not need too many skill, blocks and remove knot Stone is simple, and when rubble is clear in TV downward view, and multiple fragments can be once removed when removing rubble, when removing fragment, fragment It is not easy to escape, operation wound is small or hurtless measure, simple structure.

For the above content of the utility model can be clearer and more comprehensible, preferred embodiment is cited below particularly, and in conjunction with attached drawing, make Detailed description are as follows.

Detailed description of the invention

Fig. 1 is schematic diagram of the calculus in ureter.

Fig. 2A be embodiment 1 in plug be uncompressed before plugging device schematic diagram.

Fig. 2 B is the profile of part A in Fig. 2A.

Fig. 2 C is the profile of part B in Fig. 2A.

Fig. 3 A be embodiment 2 in plug be uncompressed before plugging device schematic diagram.

Fig. 3 B is the profile of part B in Fig. 3 A.

Fig. 3 C is the profile of part A in Fig. 3 A.

Drawing reference numeral explanation:

1 tip catheter

2 developing rings

3 foliaceous closure parts

4 mandrels

5 outer tubes

6 Handlesets

7 female Luers

9 plugs

10 plugging devices

11 guidewire lumens

12 mandrel chambers

Specific embodiment

The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this theory The bright revealed content of book understands other advantages and effect of the utility model easily.

It should be noted that in the present invention, the upper and lower, left and right in figure are considered as closure described in this specification The upper and lower, left and right of device.

The illustrative embodiments of the utility model are introduced referring now to the drawings, however, the utility model can use many Different forms is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be in order at large and complete The open present invention entirely, and the scope of the utility model is sufficiently conveyed to person of ordinary skill in the field.For indicating The term in illustrative embodiments in the accompanying drawings is not the restriction to the utility model.In the accompanying drawings, identical unit/ Element uses identical appended drawing reference.

Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.

Utility model device is inserted into body cavity by interventional technique, is blocked to body cavity.In general, the closure Movement and removal of the device for barrier in body cavity, it can also be used to which the fixation of barrier especially blocks barrier After fixation, then it is crushed；The effects of can also be used for blood vessel puncture hemostasis.The plugging device is only described below for ureter Calculus is removed, but the utility model can have broader application in the case where meeting plugging device working principle, this is current row Industry technical staff is it will be apparent that as mentioned previously, can be used for blood vessel puncture hemostasis, blocking to thrombus in blood vessel Deng.

Calculus is in the ureter between bladder and kidney, and Fig. 1 is its schematic diagram, and plugging device 10 is with traditional intervention wing The technology of Guang enters bladder, and the technology of traditional intervention bladder is not described herein.Device enters after bladder, need to pass through urine output Nozzle enters back into ureter.

In order to be more clearly understood that the technology contents of the utility model, spy lifts following embodiment and is described in detail.

Embodiment 1

As shown in figures 2 a-c, the embodiments of the present invention 1 provide a kind of plugging device 10 with guidewire lumen, Including tip catheter 1, developing ring 2, the plug 9 that can be axially compressed, mandrel 4, outer tube 5, Handleset 6 and female Luer 7.

Mandrel 4 is set as the hollow tubular structure of both ends open, can be metal tube or non-metallic pipe, for by leading Plugging device 10 is introduced body cavity to guide using seal wire by silk, it is not necessary to be relied on the guidance of endoscope again, therefore be blocked The size of device is no longer influenced by limitation, can be greater than the size of endoscope channel, and then increase closure area, makes to block and more fill Point.After plugging device 10 enters body cavity, seal wire can retain or withdraw from mandrel 4.

4 one end of mandrel passes through 9 cavity of plug, outer tube 5 and Handleset 6, connects female Luer 7 in end, Rule connects First 7 are arranged in the end of Handleset 6, after withdrawing from seal wire in mandrel 4, can according to need through female Luer 7 and mandrel 4 Liquid is injected or extracted out to body cavity.

Periphery coats one layer of high molecular polymer casing or spring tube structure after 4 other end of mandrel extends, and forms tip Conduit 1, tip catheter 1 are more than mandrel 1-2mm, and round and smooth processing is done on head, tip catheter 1 it is open-ended, so that seal wire is logical It crosses.Plugging device 10 can be improved in endoceliac self-aiming ability in tip catheter 1, so that device is had better compliance, mentions High plugging device 10 passes through the ability of barrier, and can prevent from causing to damage to mucous membrane in human body or institutional framework etc..

Tip catheter 1 is provided with developing ring 2 on the outer peripheral surface of plug 9, can be arranged by auxiliary such as X-rays, shows Show plugging device 10 in endoceliac position.

Plug 9 is made of foliaceous closure part 3, and foliaceous closure part 3 can be 1 or multi-disc is constituted, and preferably 2 Piece, 3 or 4 compositions.The both ends of foliaceous closure part 3 can be fixed on mandrel 4, or be fixed on 1 He of tip catheter In the perimeter surface of outer tube 5.3 surface of foliaceous closure part is coated with hydrophilic coating, and hydrophilic coating can play lubrication to body cavities and make With, facilitate reduce promote frictional force, avoid the injury to tissue, mitigate the pain of patient.

When outer tube 5 promotes, flat plug 9 and tip catheter 1 remain stationary state relative to outer tube 5.To guarantee When whole device promotes, the plug 9 and tip catheter 1 of expansion remain stationary state relative to outer tube 5, and external force or solid can be used Determining device slides mandrel 4 in outer tube 5, when outer tube 5 in place after, pass through the operation portion being arranged on Handleset 6, pull axis Core 4, foliaceous closure part 3 spread out, and continue to pull mandrel 4, plug 9 is compressed into corrugated plug, approximate sphericity.

Plugging device 10 such as can directly be reached near calculus by seal wire guidance by traditional intervening mode, then be promoted Plugging device 10 moves on it in ureter, can retain or withdraw from seal wire at this time.The tip catheter 1 of plugging device 10 The gap of calculus and ureter wall can be passed through, plug 9 is under the drive of tip catheter 1 partially or fully through calculus.Or Person is guided by seal wire, and plug 9 is under the drive of tip catheter 1 partially or fully through calculus.

By the operation portion being arranged on Handleset 6, mandrel 4 is pulled, flat plug 9 forms gauffer in calculus distal end Plug 9 is dragged in ureter towards bladder direction, calculus can be dragged to bladder by shape plug, can also be by calculus After being blocked, calculus is smashed with the stone crusher of rubble instrument such as laser or other energy, rubble is then dragged to bladder, because For the plugging action of plug 9, can prevent from moving to kidney in the calculus smashed during rubble.After withdrawing from seal wire, Ke Yigen According to need by female Luer 7 to body cavity inject or extract out liquid.

Percutaneous pyelostomy (PCN) is to be built into leading for suitable bore to kidney aggregation system under imageological examination guidance Pipe enables kidney aggregation system sufficiently to be drained, or successfully expanding channel carries out interventional therapy so as to thus fistula.It is controlling It, will by the stone crusher of rubble instrument such as laser or other energy during the percutaneous renal plevis fistulization operation (PCN) for treating kidney stone In kidney stone fragmentation process, blocked using plugging device in ureter and renal plevis connecting portion (position UPJ), it can be effective It prevents the kidney stone smashed to be transferred to ureter by renal plevis, forms ureteral calculi.Meanwhile in the operation, envelope can be passed through Guidewire lumen connection negative pressure suction device in block apparatus carries out drawing liquid, to be effectively reduced the pressure of renal plevis, reduces operation simultaneously Send out the generation of disease.

Embodiment 2

As shown in figs. 3 a-3 c, the embodiments of the present invention 2 are similar to the principle of embodiment 1, the difference is that:

In example 2, a kind of plugging device 10 with guidewire lumen provided by the utility model, including tip catheter 1, Developing ring 2, the plug 9 that can be axially compressed, outer tube 5, Handleset 6 and female Luer 7.

One end of outer tube 5 passes through 9 cavity of plug, and extended part forms polymer casing or spring tube structure, packet Mandrel 4 is covered, tip catheter 1 is formed, the other end is connected with Handleset 6.

The both ends of foliaceous closure part 3 in plug 9 and outer tube 5 are fixed.Part of the outer tube 5 in 9 cavity of plug It is set as compressible spring tube structure, can compress or be unfolded with plug 9.

The diameter for increasing outer tube 5, sets double cavity structure, including guidewire lumen 11 and mandrel chamber 12 for its internal mandrel.It leads Silk chamber 11 is used for through seal wire, to guide using seal wire, plugging device 10 is introduced human body, it is not necessary to rely on endoscope again Guidance, therefore the size of plugging device is no longer influenced by limitation, can be greater than the size of endoscope channel, and then increase closure Area makes to block more abundant；Mandrel 4 is installed in mandrel chamber 12, is used to support outer tube 5, and the behaviour by being arranged on Handleset 6 Make portion's operation plug 9.

Outer tube 5 increases the branch pipe with female Luer 7 close to the part of Handleset 6, and branch pipe is communicated with guidewire lumen 11, removed Out after the seal wire in guidewire lumen 11, can according to need by female Luer 7 to human injection or extraction liquid.

In conclusion a kind of plugging device with guidewire lumen, mandrel hollow tubular structure involved in the utility model Guidewire lumen plugging device can be introduced into body cavity, changed in the prior art by seal wire, to be guided using seal wire Plugging device must rely on the guidance of endoscope, therefore the size of plugging device is no longer influenced by limitation, can be greater than endoscope tube The size in road, and then closure area is increased, make to block more abundant；The female Luer of mandrel end connection can after extracting seal wire out Liquid is injected or extracted out to body cavity by female Luer, keeps the intracorporal pressure of people appropriate, there is very high practical value.This Outside, the above embodiments are only illustrative of the principle and efficacy of the utility model for the utility model, not for limiting this reality With novel.Anyone skilled in the art all can under the spirit and scope without prejudice to the utility model, to above-described embodiment into Row modifications and changes.Therefore, those skilled in the art are in spirit revealed without departing from the utility model and institute under technical idea All equivalent modifications or change completed, should be covered by the claim of the utility model.

Claims (10)

1. a kind of plugging device with guidewire lumen, including tip catheter, mandrel, outer tube, the plug that can be axially compressed and Handleset, described mandrel one end pass through plug cavity, outer tube and Handleset, tip described in outer cladding after the other end extends Conduit, it is characterised in that: the mandrel is the hollow tubular structure with both ends open.

2. the plugging device according to claim 1 with guidewire lumen, it is characterised in that: the end of the mandrel is connected with Female Luer.

3. the plugging device according to claim 1 with guidewire lumen, it is characterised in that: described outer tube one end passes through described Plug cavity, extended part form the tip catheter, and the other end is connect with the Handleset.

4. the plugging device according to claim 3 with guidewire lumen, it is characterised in that: the outer tube is in the plug Part in cavity is set as compressible spring tube structure.

5. the plugging device according to claim 4 with guidewire lumen, it is characterised in that: the outer tube is set as double Cavity configuration is divided into guidewire lumen and mandrel chamber.

6. the plugging device according to claim 4 with guidewire lumen, it is characterised in that: the outer tube is close to the handle The part of component increases the branch pipe with female Luer, and the branch pipe is connected to the guidewire lumen.

7. the plugging device according to claim 1 with guidewire lumen, it is characterised in that: the tip catheter is macromolecule Round and smooth processing is done on polymer casing, head.

8. the plugging device according to claim 1 with guidewire lumen, it is characterised in that: the tip catheter is close to described Developing ring is provided on the outer peripheral surface of plug.

9. according to claim 1-plugging device with guidewire lumen, it is characterised in that: the plug is by foliaceous Closure part composition.

10. the plugging device according to claim 9 with guidewire lumen, it is characterised in that: foliaceous closure part table Face has hydrophilic coating.