CN105147425B - A kind of short outer sheath upper digestive tract stent supplying system - Google Patents
A kind of short outer sheath upper digestive tract stent supplying system Download PDFInfo
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- CN105147425B CN105147425B CN201510465489.4A CN201510465489A CN105147425B CN 105147425 B CN105147425 B CN 105147425B CN 201510465489 A CN201510465489 A CN 201510465489A CN 105147425 B CN105147425 B CN 105147425B
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- pusher
- outer sheath
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- short outer
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- 210000001035 gastrointestinal tract Anatomy 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 238000002347 injection Methods 0.000 claims abstract description 48
- 239000007924 injection Substances 0.000 claims abstract description 48
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 3
- 210000000214 mouth Anatomy 0.000 description 21
- 210000003128 head Anatomy 0.000 description 8
- 210000002105 tongue Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 210000003739 neck Anatomy 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000002872 contrast media Substances 0.000 description 4
- 241000463219 Epitheca Species 0.000 description 3
- 241001656951 Protheca Species 0.000 description 2
- 210000001198 duodenum Anatomy 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
本发明公开了一种短外鞘管上消化道支架推送系统，包括：支架推送器、固定器和口垫，其中，支架推送器包括推送器头、内芯、副管、主管、套拉环、滑杆、滑杆座、推送器尾、短外鞘管、支架、导丝腔、内注液管和外部注液机构，推送器头为圆锥体形，推送器头和推送器尾分别设置在支架推送器的两端，在推送器头和推送器尾之间，沿同一中心轴线依次设置内芯、副管、主管、套拉环、滑杆和滑杆座；口垫包括弧形防护罩和咬合管；固定器包括第一本体和第二本体，第一本体的内侧和第二本体的内侧设有一对对称的半圆形主管卡槽，第一本体的顶部设有一第一卡合件，第二本体的顶部设有第二卡合件，第一本体的上下两端分别设有一卡扣。
The invention discloses a short outer sheath tube upper digestive tract stent pushing system, comprising: a stent pusher, a fixer and a mouth pad, wherein the stent pusher includes a pusher head, an inner core, a secondary tube, a main pipe, and a pull ring , sliding rod, sliding rod seat, pusher tail, short outer sheath, bracket, guide wire cavity, inner liquid injection tube and external liquid injection mechanism, the pusher head is cone-shaped, and the pusher head and pusher tail are respectively set on The two ends of the pusher of the bracket, between the pusher head and the pusher tail, are arranged in sequence along the same central axis as the inner core, the auxiliary pipe, the main pipe, the pull ring, the slide rod and the slide rod seat; the mouth pad includes an arc-shaped protective cover and the bite tube; the fixer includes a first body and a second body, a pair of symmetrical semicircular main pipe slots are provided on the inside of the first body and the inside of the second body, and a first engaging piece is provided on the top of the first body , the top of the second body is provided with a second engaging member, and the upper and lower ends of the first body are respectively provided with a buckle.
Description
Technical field
Support is inserted into food the present invention relates to a kind of short outer sheath upper digestive tract stent supplying system, more particularly to one kind
The metallic support system of pipe, stomach and duodenum road.
Background technology
At present, have become by scope and X-ray auxiliary implantation alimentary canal metallic support and treat many pernicious and benign
The main method of lesion.Alimentary stent since the advent of the world, with its obvious therapeutic effect and relatively low complication rate quilt
Medical field is approved.
But existing metallic support release system specifications are high, and operation difficulty is big, it is desirable to which operator has enough training
The accurate release of support could be realized with experience.Before release, support is integrally formed with inner core by outer sheath parcel.Support discharged
Cheng Zhong, need to ensure that the relative position of inner core and lesion is constant, such support will not just be shifted when expanding and departing from inner core.It is existing
Stent pushing system, need to by wrap metallic support outer sheath exit and support could be discharged, and the process because outer sheath move
Move and inner core can not be fixed, this, which inevitably results in inner core, a certain degree of change in location, also implies that the position of support
Put and also change therewith.Therefore assistant needs close fit with scope doctor, could control the relative fortune of support and outer sheath
It is dynamic, big change in location does not occur to keep metallic support.In the process, it is careless slightly, the support of release will be caused to deviate
Even come off, even result in operative failure.Therefore, how to be accurately positioned and support is accurately released to target location into should
The bottleneck problem of technology.
The content of the invention
The present invention provides a kind of short outer sheath upper digestive tract stent supplying system, in oesophagus, stomach and duodenum road
Middle implantation alimentary stent.
In order to achieve the above object, the invention provides a kind of short outer sheath upper digestive tract stent supplying system, including：Branch
Frame pusher, fixator and mouth pad, wherein,
The stent pushing device includes pusher head, inner core, looped pipeline, supervisor, set draw ring, slide bar, slider block, pusher
Tail, short outer sheath, support, guidewire lumen, interior liquid injection pipe and outside mechanism for filling liquid, wherein,
The pusher head is cone shape, and the pusher head and the pusher tail are separately positioned on the support and pushed away
The two ends of device are sent, between the pusher head and the pusher tail, the inner core, pair are set gradually along same central axis
Pipe, supervisor, set draw ring, slide bar and slider block, the short outer sheath are arranged on the outside of the inner core, the length of the short outer sheath
Degree is slightly larger than the length of the inner core, and the short outer sheath is not connected to the pusher head, the pusher tail and the cunning
Pole socket is fixedly connected, and the interior liquid injection pipe is described interior through the central axis between the pusher head and the pusher tail
Liquid injection pipe is provided with a liquid outlet in the side of the pusher head, and the interior liquid injection pipe is noted at the slider block with the outside
Liquid mechanism is connected, and the guidewire lumen is through between the pusher head and the pusher tail, and the guidewire lumen is provided with one
It is located at the guide wire exit openings of the pusher tail positioned at the seal wire entrance of the pusher head and one；
The external diameter of the looped pipeline is less than the external diameter of the supervisor and the internal diameter of the short outer sheath, and the external diameter of the supervisor is big
In or equal to the short outer sheath external diameter, the length of the looped pipeline and the slide bar is not less than the length of the short outer sheath
Degree, the length of the slide bar is not less than the length of the looped pipeline, and the external diameter of the slide bar is more than the external diameter of the supervisor；
The afterbody of the short outer sheath is provided with two T-shaped buttons, and the bottom of two T-shaped buttons is provided with two first connections
Point, the side wall of the looped pipeline provided with the longitudinal chutes of two T-shaped, two T-shaped deduction of points not with two institutes on the looped pipeline
State the longitudinal chute of T-shaped to match, the main pipe is provided with two provided with two hollow connection spools, supervisor's outer wall
It is responsible at the top of cable-through hole, the slide bar provided with two slide bar cable-through holes, the edge of the slide bar is right to inner side concave shape into two
Claim slideway, the set draw ring is provided with the top of the tongue matched with the slideway, the set draw ring and is provided with the tongue
Two the second tie points, and two first tie points, two supervisor's cable-through holes, two slide bar cable-through holes and two
Individual second tie point axisymmetricly and copline, is set between two first tie points and two second tie points
There are two connecting lines, wherein one end of each connecting line, which is fixed on first tie point and sequentially passes through the T-shaped respectively, indulges
Connection spool, supervisor's cable-through hole, the slide bar cable-through hole into chute, the supervisor are fixed on described after the other end
Second tie point；
The space for receiving the support before release is reserved between the inner core and the short outer sheath, it is described interior
The two ends of core are connected with the top of the afterbody and the looped pipeline of the pusher head respectively, and the interior core inner has stated seal wire
Chamber and the interior liquid injection pipe pass through, and an impermeable X-ray mark layer is coated respectively with the outer wall at the inner core two ends；
The mouth pad includes arc protective cover and occlusion is managed, and the arc protective cover is arranged on one end of the occlusion pipe,
The diameter with diameter greater than the supervisor of the occlusion pipe, is symmetrically set with along the cross central line of the arc protective cover
Two mouth pad fixed belt holes, two spherical fixing buttons are provided with along the vertical center line of the arc protective cover is symmetrical above and below；
The fixator includes the bottom of the first noumenon and the second body, the bottom of the first noumenon and second body
Portion is connected by a hinge, and the inner side of the inner side of the first noumenon and second body is provided with a pair of symmetrical semicircles
Neck is responsible for, the diameter and the diameter of the supervisor of semicircle supervisor's neck match, set at the top of the first noumenon
Have one first fastener, the top of second body can be mutually clamped and separate with first fastener provided with one the
Two fasteners, the upper and lower ends of the first noumenon are respectively equipped with described in two on a buckle, the buckle and the mouth pad
Spherical fixing button matches.
In one embodiment of this invention, the outside mechanism for filling liquid includes outer liquid injection pipe, flow control valve and liquid injection port,
Wherein one end of the outer liquid injection pipe is connected with interior liquid injection pipe, and the other end is connected with the liquid injection port, and the flow control valve is set
Put on the outer liquid injection pipe.
The present invention has advantages below compared to prior art：
(1) present invention in short outer sheath length be more than support length and less than looped pipeline length, short outer sheath it is interior
Footpath is more than looped pipeline external diameter, and the external diameter of short outer sheath is less than or equal to the external diameter being responsible for；Because short outer sheath is shorter, so as to make
The supervisor of pusher is no longer coated by short outer sheath, and short outer sheath does not produce any influence when pulling on inner core position；
(2) present invention is provided with the connecting line being connected with short outer sheath, can be pulled by connecting line during release support
Short outer sheath；
(3) fixator in the present invention is realized by spherical fixing button and buckle with mouth pad and interfixed, while can also
Fixed supervisor；
(4) present invention, which realizes one, can complete support storing operation.
To sum up, instant invention overcomes release tech in existing upper digestive tract stent implanted prosthetics is complicated and require high and lack
Point there is provided it is a kind of it is simple, precisely, it is stable and can one man operation stent pushing system, the present invention can answer by doctors at different levels
With, the incidence for the related complication that reduction is caused because stenter to implant is improper, and improve disease treatment level.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the original state schematic diagram of the stent pushing device of one embodiment of the invention；
Fig. 2A is sectional view of the stent pushing device of one embodiment of the invention before stent pushing in the middle part of short outer sheath；
Fig. 2 B are the sectional view of stent pushing device short outer sheath afterbody before stent pushing of one embodiment of the invention；
Fig. 2 C are sectional view of the stent pushing device of one embodiment of the invention before stent pushing in the middle part of looped pipeline；
Fig. 2 D are the sectional view in the middle part of the stent pushing device supervisor of one embodiment of the invention；
Fig. 2 E are sectional view of the stent pushing device on stent pushing protheca draw ring head of one embodiment of the invention；
Fig. 2 F for one embodiment of the invention stent pushing device in slide bar sectional view；
Fig. 3 pushes for the stent pushing device of one embodiment of the invention terminates the schematic diagram that after-poppet is in release conditions；
Fig. 4 is the structural representation of the mouth pad of one embodiment of the invention；
Fig. 5 is the structural representation of the fixator of one embodiment of the invention；
Fig. 6 is the fixator and the connection diagram of mouth pad when in use of one embodiment of the invention.
Description of reference numerals：1- pusher heads；2- inner cores；3- looped pipelines；4- is responsible for；5- covers draw ring；50- tongues；6- slide bars；
60- slideways；7- slider blocks；8- pusher tails；The short outer sheaths of 9-；10- supports；11- guidewire lumens；110- seal wire entrances；111- is led
Silk outlet；Liquid injection pipe in 12-；Mechanism for filling liquid outside 13-；The outer liquid injection pipes of 130-；131- flow control valves；132- liquid injection ports；14-
Liquid outlet；15-T shape buttons；The tie points of 16- first；17-T shapes longitudinal direction chute；18- connection spools；19- is responsible for cable-through hole；20- is slided
Bar cable-through hole；The tie points of 21- second；22- connecting lines；The impermeable X-ray mark layers of 23-；24- arc protective covers；25- occlusion pipes；
26- mouthfuls of pad fixed belt holes；The spherical fixing buttons of 27-；28- the first noumenons；The bodies of 29- second；30- hinges；31- is responsible for neck；32-
First fastener；The fasteners of 33- second；34- buckles.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Embodiment, belongs to the scope of protection of the invention.
The position that " head ", " head " mentioned below is referred to is the upper end of the stent pushing device shown in close Fig. 1,
The position that " afterbody ", " tail " are referred to is close to the lower end of the stent pushing device shown in Fig. 1.
Fig. 1 is the original state schematic diagram of the stent pushing device of one embodiment of the invention, as shown in figure 1, the present invention one
Stent pushing device in individual embodiment include pusher first 1, inner core 2, looped pipeline 3, supervisor 4, set draw ring 5, slide bar 6, slider block 7,
Pusher tail 8, short outer sheath 9, support 10, guidewire lumen 11, interior liquid injection pipe 12 and outside mechanism for filling liquid 13, wherein,
Pusher first 1 is cone shape, and pusher first 1 and pusher tail 8 are separately positioned on the two ends of stent pushing device,
Between pusher first 1 and pusher tail 8, inner core 2, looped pipeline 3, supervisor 4, set draw ring 5, slide bar are set gradually along same central axis
6 and slider block 7, short outer sheath 9 is arranged on the outside of inner core 2, and the length of short outer sheath 9 is slightly larger than the length of inner core 2, wherein,
The head of short outer sheath 9 is concordant with inner core 2, and the part that short outer sheath 9 is longer than inner core 2 is enclosed within the outside on the head of looped pipeline 3, short epitheca
Pipe 9 is not connected to pusher first 1, and pusher tail 8 is fixedly connected with slider block 7, and interior liquid injection pipe 12 is through pusher first 1 with pushing
Central axis between device tail 8, interior liquid injection pipe 12 is provided with a liquid outlet 14 in the side of pusher first 1, and interior liquid injection pipe 12 is in cunning
It is connected at pole socket 7 with outside mechanism for filling liquid 13, guidewire lumen 11 is through between pusher first 1 and pusher tail 8, guidewire lumen 11
It is located at the guide wire exit openings 111 of pusher tail 8 provided with a seal wire entrance 110 and one for being located at pusher first 1.
The external diameter of looped pipeline 3 is less than the external diameter of supervisor 4 and the internal diameter of short outer sheath 9, and the external diameter of supervisor 4 is more than or equal to outside short
The length of the external diameter of sheath 9, looped pipeline 3 and slide bar 6 is not less than the length of short outer sheath 9, and the length of slide bar 6 is not less than looped pipeline 3
Length, the external diameter of slide bar 6 is more than the external diameter of supervisor 4.
The bottom of short outer sheath 9 is provided with two the first tie points 16 provided with two T-shaped buttons 15, the bottom of two T-shaped buttons 15,
The side wall of looped pipeline 3 provided with the longitudinal chutes 17 of two T-shaped, two T-shaped buttons 15 respectively with the longitudinal chute of two T-shaped on looped pipeline 3
17 match, and the inside of supervisor 4 is provided with two hollow connection spools 18 (not shown in Fig. 1, see Fig. 2 D), the outer wall of supervisor 4
Provided with two supervisor's cable-through holes 19, the top of slide bar 6 is provided with two slide bar cable-through holes 20, and the edge of slide bar 6 is to inner side concave shape
Into two symmetrical slideways 60, set draw ring 5 is provided with the tongue 50 matched with slideway, and the top of set draw ring 5 is provided with two at tongue
Individual second tie point 21, and two the first tie points 16, two supervisor's cable-through holes 19, two slide bar cable-through holes 20 and two second
Tie point 21 axisymmetricly and copline, provided with two connecting lines between two the first tie points 16 and two the second tie points 21
22, wherein one end of each connecting line 22 is fixed on the first tie point 16 and sequentially passes through the longitudinal chute 17 of T-shaped respectively, is responsible for interior
Connection spool 18, supervisor cable-through hole 19, slide bar cable-through hole 20 be fixed on the second tie point 21 after the other end.
The space for receiving the support 10 before release, the two ends point of inner core 2 are reserved between inner core 2 and short outer sheath 9
It is not connected with the afterbody of pusher first 1 and the top of looped pipeline 3, has guidewire lumen 11 and interior liquid injection pipe 12 to pass through inside inner core 2, it is interior
An impermeable X-ray mark layer 23 is coated respectively with the outer wall at the two ends of core 2.
Wherein, outside mechanism for filling liquid 13 includes outer liquid injection pipe 130, flow control valve 131 and liquid injection port 132, outer liquid injection pipe
130 wherein one end is connected with interior liquid injection pipe 12, and the other end is connected with liquid injection port 132, and flow control valve 131 is set in outer fluid injection
On pipe 130.
Fig. 2A is sectional view of the stent pushing device of one embodiment of the invention before stent pushing in the middle part of short outer sheath, such as
Shown in figure, short outer sheath 9, which is coated, has guidewire lumen 11 and interior liquid injection pipe 12 to pass through inside the support 10 not discharged, inner core 2.
Fig. 2 B are the sectional view of stent pushing device short outer sheath afterbody before stent pushing of one embodiment of the invention, such as
Shown in figure, short outer sheath 9 has lap here with looped pipeline 3, and two T-shaped buttons 15 are arranged on the afterbody of short outer sheath 9, two
First tie point 16 is arranged on the bottom of two T-shaped buttons 15, and the longitudinal chute 17 of two T-shaped is located on the side wall of looped pipeline 3, short epitheca
There are guidewire lumen 11 and interior liquid injection pipe 12 to pass through inside pipe 9.
Fig. 2 C are sectional view of the stent pushing device of one embodiment of the invention before stent pushing in the middle part of looped pipeline, such as figure institute
Show, the side wall of looped pipeline 3 is provided with the longitudinal chute 17 of two T-shaped, and connecting line 22, which is passed through inside looped pipeline 3, looped pipeline 3, the He of guidewire lumen 11
Interior liquid injection pipe 12 passes through.
Fig. 2 D are the sectional view in the middle part of the stent pushing device supervisor of one embodiment of the invention, as illustrated, inside supervisor 4
Provided with connection spool 18, there is connecting line 22 to pass through inside connection spool 18, have guidewire lumen 11 and interior liquid injection pipe 12 logical inside supervisor 4
Cross.
Fig. 2 E are sectional view of the stent pushing device on stent pushing protheca draw ring head of one embodiment of the invention, are such as schemed
Shown, the middle part of set draw ring 5 and the phase fit of slide bar 6, the edge of slide bar 6 cover draw ring 5 to inner side concave shape into two symmetrical slideways 60
Provided with the tongue 50 matched with slideway, the top of set draw ring 5, provided with two the second tie points 21, covers draw ring 5 at tongue
Center has guidewire lumen 11 and interior liquid injection pipe 12 to pass through.
Fig. 2 F for one embodiment of the invention stent pushing device in slide bar sectional view, as illustrated, the side of slide bar 6
Edge is to inner side concave shape into two symmetrical slideways 60, and the center of slide bar 6 has guidewire lumen 11 and interior liquid injection pipe 12 to pass through.
Fig. 3 pushes for the stent pushing device of one embodiment of the invention terminates the schematic diagram that after-poppet is in release conditions,
Need that direction pulling of the draw ring 5 towards slider block 7 will be covered during stent pushing, due to covering the top of draw ring 5 two at tongue
Two connecting lines 22 are connected between individual second tie point 21 and two the first tie points 16 of two bottoms of T-shaped button 15, and it is secondary
The external diameter of pipe 3 is less than the internal diameter of short outer sheath 9, therefore during pulling set draw ring 5, short outer sheath 9 is gradually pulled to slider block 7
Direction, short outer sheath 9 is then coated on the outer surface of looped pipeline 3, needs to pull set draw ring 5 always until short outer sheath 9 during this
Completely disengage from support 10.As illustrated, short outer sheath 9 has completely disengaged from support 10, short outer sheath 9 is coated on the appearance of looped pipeline 3
Face, set draw ring 5 is pulled to close to the position of slider block 7.
Fig. 4 is the structural representation of the mouth pad of one embodiment of the invention, as illustrated, the mouth pad in the present embodiment includes
Arc protective cover 24 and occlusion pipe 25, arc protective cover 24 be arranged on occlusion pipe 25 one end, occlusion pipe 25 with diameter greater than master
The diameter of pipe 4, arcuately the cross central line of protective cover 24 be symmetrically set with two mouth pad fixed belt holes 26, arcuately prevent
The vertical center line of shield 24 is symmetrical above and below to be provided with two spherical fixing buttons 27.
Fig. 5 is the structural representation of the fixator of one embodiment of the invention, as illustrated, the fixator in the present embodiment
Including the body 29 of the first noumenon 28 and second, the bottom of the first noumenon 28 is connected with the bottom of the second body 29 by a hinge 30
Connect, the inner side of the inner side of the first noumenon 28 and the second body 29 is provided with a pair of symmetrical semicircle supervisor's necks 31, and semicircle is main
The diameter of pipe clamp groove 32 and the diameter of supervisor 4 match, and the top of the first noumenon 28 is provided with one first fastener 32, the second body
29 top is provided with second fastener 33 that can be mutually clamped and separate with the first fastener 28, and the first noumenon is about 28
A buckle 34 is respectively arranged at two ends with, buckle 34 matches with two spherical fixing buttons 27 on mouth pad.
Fig. 6 is the fixator and the connection diagram of mouth pad when in use of one embodiment of the invention, as illustrated, fixed
A pair of buckles 34 on device are mutually clamped with a pair of spherical fixing buttons 27 on mouth pad respectively, the body 29 of the first noumenon 28 and second
It is mutually clamped by the first fastener 32 and the second fastener 33, now, a pair of semicircle supervisor's necks 31 in the middle of fixator
For fixed supervisor 4.
The process that the short outer sheath upper digestive tract stent supplying system provided using the present invention carries out stent pushing is as follows：
S1：Two mouth pad fixing bands are separately fixed on the mouth pad fixed belt hole 26 at mouth pad two ends, patient will be engaged
Pipe 25 is bitten in oral cavity, and two mouth pad fixing bands are fixed around patient head, make mouth pad difficult for drop-off；
S2：Under the cooperation of scope, the occlusion pipe 25 on seal wire bead pad is inserted into human body using conventional method, makes seal wire
Head cross the diseased region to be put support, the afterbody of seal wire is then stayed in outside human body；
S3：By the seal wire entrance 110 at the tail end of seal wire insertion stent pushing device head, guidewire lumen 11 is passed through, and from
Guide wire exit openings 111 are passed；
S4：Stent pushing device is pushed along seal wire, the impermeable X-ray mark layer 23 at the two ends of inner core 2 is detected by x-ray, when interior
The position of the impermeable X-ray mark layer 23 at the two ends of core 2 is moved to after diseased region, stops pushing；
S5：The first noumenon 28 is mutually clamped with the second body 29 by the first fastener 32 and the second fastener 33, made
A pair in the middle of fixator semicircle supervisor's necks 31 are closed and tightly narrowed so that stent pushing device in length direction relative to seal wire not
Move again；
S6：Operator is pulled with hand or hands by draw ring 5 is covered towards the direction of pusher afterbody, is now covered draw ring 5 and is pushed up
Two second tie points 21 of the portion at tongue affect two connecting lines 22.Due to two connecting lines 22 also with two T-shaped buttons 15
Two the first tie points 16 of bottom connect, therefore two connecting lines 22 pull on short outer sheath 9 and moved to the direction of set draw ring 5
It is dynamic, run through in the longitudinal chute 17 of two T-shaped in two connection spools 18 and looped pipeline 3 of two connecting lines 22 in supervisor 4, and
Two T-shaped buttons 15 with the short top of outer sheath 9 are close chimeric, therefore will not be broken in drawing process.It is straight due to short outer sheath 9
Footpath is more than the diameter of looped pipeline 3, therefore short outer sheath 9 is enclosed within the outside of looped pipeline 3, and short epitheca in this process during pulling
Pipe 9 is not in contact with supervisor 4, therefore does not influence the fixation of supervisor 4；
S7：Set draw ring 5 is pulled on, the position of short outer sheath 9 is monitored by x-ray, until short outer sheath 9 is pulled away from branch completely
Frame 10.Due to slide bar 6 and looped pipeline 3 length be slightly longer than short outer sheath 9 length, therefore short outer sheath 9 have enough strokes to
The direction movement of draw ring 5 is covered, so as to ensure that support 10 can discharge completely.
S8：The first fastener 32 and the second fastener 33 are separated to release fixation of the fixator to supervisor 4, support is removed
Pusher, fixator, mouth pad and seal wire, complete the whole process of stent pushing.
In step s 4, contrast agent can be also injected from liquid injection port 132, contrast agent passes through outer liquid injection pipe 130, interior liquid injection pipe 12
The liquid outlet 14 from first 1 side of pusher flows out afterwards, during this can by flow control valve 131 control contrast agent flow and
Flow velocity, is the position that can determine that pusher first 1 by the contrast agent flowed out at x-ray observation liquid outlet.
The present invention has advantages below compared to prior art：
(1) present invention in short outer sheath length be more than support length and less than looped pipeline length, short outer sheath it is interior
Footpath is more than looped pipeline external diameter, and the external diameter of short outer sheath is less than or equal to the external diameter being responsible for；Because short outer sheath is shorter, so as to make
The supervisor of pusher is no longer coated by short outer sheath, and short outer sheath does not produce any influence when pulling on inner core position；
(2) present invention is provided with the connecting line being connected with short outer sheath, can be pulled by connecting line during release support
Short outer sheath；
(3) fixator in the present invention is realized by spherical fixing button and buckle with mouth pad and interfixed, while can also
Fixed supervisor；
(4) present invention, which realizes one, can complete support storing operation.
One of ordinary skill in the art will appreciate that：Accompanying drawing be module in the schematic diagram of one embodiment, accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that：The module in device in embodiment can be according to embodiment description point
It is distributed in the device of embodiment, respective change can also be carried out and be disposed other than in one or more devices of the present embodiment.On
A module can be merged into by stating the module of embodiment, can also be further split into multiple submodule.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in previous embodiment, or to which part technical characteristic progress equivalent；And
These modifications are replaced, and the essence of appropriate technical solution is departed from the spirit and model of embodiment of the present invention technical scheme
Enclose.
Claims (2)
1. a kind of short outer sheath upper digestive tract stent supplying system, it is characterised in that including：Stent pushing device, fixator and mouth
Pad, wherein,
The stent pushing device includes pusher head, inner core, looped pipeline, supervisor, set draw ring, slide bar, slider block, pusher tail, short
Outer sheath, support, guidewire lumen, interior liquid injection pipe and outside mechanism for filling liquid, wherein,
The pusher head is cone shape, and the pusher head and the pusher tail are separately positioned on the stent pushing device
Two ends, between the pusher head and the pusher tail, along same central axis set gradually the inner core, looped pipeline,
Supervisor, set draw ring, slide bar and slider block, the short outer sheath are arranged on the outside of the inner core, the length of the short outer sheath
Slightly larger than the length of the inner core, the short outer sheath is not connected to the pusher head, the pusher tail and the slide bar
Seat is fixedly connected, and the interior liquid injection pipe is through the central axis between the pusher head and the pusher tail, the interior note
Liquid pipe is provided with a liquid outlet in the side of the pusher head, the interior liquid injection pipe at the slider block with the outside fluid injection
Mechanism is connected, and the guidewire lumen is through between the pusher head and the pusher tail, and the guidewire lumen is provided with one
It is located at the guide wire exit openings of the pusher tail in the seal wire entrance of the pusher head and one；
The external diameter of the looped pipeline be less than the supervisor external diameter and the short outer sheath internal diameter, the external diameter of the supervisor be more than or
Equal to the external diameter of the short outer sheath, the length of the looped pipeline and the slide bar is not less than the length of the short outer sheath, institute
The length for stating slide bar is not less than the length of the looped pipeline, and the external diameter of the slide bar is more than the external diameter of the supervisor；
The afterbody of the short outer sheath is provided with two T-shaped buttons, and the bottom of two T-shaped buttons is provided with two the first tie points, institute
The side wall of looped pipeline is stated provided with the longitudinal chutes of two T-shaped, two T-shaped deduction of points not with two T-shaped on the looped pipeline
Longitudinal chute matches, and the main pipe is provided with two hollow connection spools, and supervisor's outer wall is provided with two supervisors
Provided with two slide bar cable-through holes at the top of cable-through hole, the slide bar, the edge of the slide bar is symmetrical sliding to inner side concave shape into two
Road, the set draw ring is provided with the top of the tongue matched with the slideway, the set draw ring and two is provided with the tongue
Second tie point, and two first tie points, two supervisor's cable-through holes, two slide bar cable-through holes and two institutes
State the second tie point axisymmetricly and copline, two are provided between two first tie points and two second tie points
Root connecting line, wherein one end of each connecting line, which is fixed on first tie point and sequentially passes through the T-shaped respectively, longitudinally to be slided
Connection spool, supervisor's cable-through hole in groove, the supervisor, the slide bar cable-through hole are fixed on described second after the other end
Tie point；
The space for receiving the support before release is reserved between the inner core and the short outer sheath, the inner core
Two ends are connected with the top of the afterbody and the looped pipeline of the pusher head respectively, the interior core inner stated guidewire lumen and
The interior liquid injection pipe passes through, and an impermeable X-ray mark layer is coated respectively with the outer wall at the inner core two ends；
The mouth pad includes arc protective cover and occlusion is managed, and the arc protective cover is arranged on one end of the occlusion pipe, described
The diameter with diameter greater than the supervisor of pipe is engaged, two are symmetrically set with along the cross central line of the arc protective cover
Mouth pad fixed belt hole, two spherical fixing buttons are provided with along the vertical center line of the arc protective cover is symmetrical above and below；
The fixator includes the first noumenon and the second body, and the bottom of the bottom of the first noumenon and second body leads to
Cross a hinge to be connected, the inner side of the inner side of the first noumenon and second body is provided with a pair of symmetrical semicircle supervisors
Neck, the diameter and the diameter of the supervisor of semicircle supervisor's neck match, and the top of the first noumenon is provided with one
First fastener, the top of second body is provided with second card that can be mutually clamped and separate with first fastener
Component, the upper and lower ends of the first noumenon are respectively equipped with a buckle, and the buckle and two on the mouth pad are described spherical
Fixing button matches.
2. short outer sheath upper digestive tract stent supplying system according to claim 1, it is characterised in that the outside fluid injection
Mechanism includes outer liquid injection pipe, flow control valve and liquid injection port, and wherein one end of the outer liquid injection pipe is connected with interior liquid injection pipe, another
End is connected with the liquid injection port, and the flow control valve is arranged on the outer liquid injection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510465489.4A CN105147425B (en) | 2015-07-31 | 2015-07-31 | A kind of short outer sheath upper digestive tract stent supplying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510465489.4A CN105147425B (en) | 2015-07-31 | 2015-07-31 | A kind of short outer sheath upper digestive tract stent supplying system |
Publications (2)
| Publication Number | Publication Date |
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| CN105147425A CN105147425A (en) | 2015-12-16 |
| CN105147425B true CN105147425B (en) | 2017-07-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111228009A (en) * | 2020-01-10 | 2020-06-05 | 北京天助瑞畅医疗技术有限公司 | Stent implantation conveyor and implantation system |
| CN112754740B (en) * | 2021-01-08 | 2025-01-10 | 中国人民解放军联勤保障部队第九〇九医院 | Esophageal stent pusher |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007136946A2 (en) * | 2001-12-03 | 2007-11-29 | Xtent, Inc. | Delivery catheter having active engagement mechanism for prosthesis |
| US7743768B2 (en) * | 2005-12-20 | 2010-06-29 | Ric Investments, Llc | Patient interface device with dampening cushion |
| CA2806234C (en) * | 2010-07-30 | 2015-03-24 | Cook Medical Technologies Llc | Controlled release and recapture prosthetic deployment device |
| CN104014066B (en) * | 2014-07-01 | 2016-06-08 | 曾奕明 | A kind of segmental bronchus plug device for posting |
| CN104510548B (en) * | 2014-12-15 | 2016-03-30 | 哈尔滨医科大学 | A short outer sheath push system for endoscopic biliary metal stent |
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