CN206444013U - A kind of cystic duct device for spreading - Google Patents
A kind of cystic duct device for spreading Download PDFInfo
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- CN206444013U CN206444013U CN201621138995.9U CN201621138995U CN206444013U CN 206444013 U CN206444013 U CN 206444013U CN 201621138995 U CN201621138995 U CN 201621138995U CN 206444013 U CN206444013 U CN 206444013U
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- pipe
- cylinder
- expansion
- outer tube
- middle pipe
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Abstract
The utility model is related to a kind of cystic duct device for spreading, and the device includes fixing pipe, pusher pipeline and the expander being coaxially disposed, and one end of pusher pipeline is connected with fixing pipe, the other end is connected by bellows with expander；Fixing pipe is connected with pusher pipeline, fixation and supporting member as device for spreading, pusher pipeline includes outer tube, inner tube and the middle pipe being installed between outer tube and inner tube, the utility model effectively utilizes the cooperation of telescopic cylinder and dish-type cylinder, realize the elongation of pusher pipeline, the deflection and expansion of expander, and then realize strutting for cystic duct, convenient passage is provided for choledochoscope turnover bile duct, it is prevented effectively from and the injury that operation mouth is caused to patient is opened on gall-bladder, and reduces the secondary injury in surgical procedure or reduction operation risk or sequelae.
Description
Technical field
The utility model belongs to medical surgical instrument field, and in particular to a kind of that cystic duct is strutted in operation on biliary tract
Device.
Background technology
Cystic duct is a flesh structure, inside there is pleat, bad to pass through, and is frequently necessary to choledochoscope in operation, by courage
Capsule pipe enters biliary tract stone extraction.Common bile, choledochoscope are entered by choledochus otch in current choledocholithiasis operation, art
Choledochus, takes out the materials such as calculus.
But current choledocholithiasis operation method is primarily present problems with：
1) Via bile duct enters choledochoscope and takes stone：Generals culture expansion can not provide the path that choledochoscope passes through, overdistension
Cystic duct reduces its surgical value, causes secondary damage, particularly when there is more calculus in patient's gall-bladder, or with gall-bladder
During oedema, often due to cholelith is harder more or gallbladder wall is relatively thin and tears gall-bladder, the abdominal cavity so that bile, cholelith are scattered dissipates
Fall bile, the cleaning of cholelith often seriously extends operating time, increase operation risk.Shi Bujing is taken to can also result in postoperative
Infection, compressing internal organs even trigger the serious consequences such as Alimentary Tract Perforation.
2) enter choledochoscope through common bile and take stone：Common bile is postoperative to heal well, increase wound area,
Extend post-operative recovery time, and postoperative easy initiation sequelae.The indication of laparoscope Minimally Invasive Surgery is reduced, causes patient
Minimally-invasive treatment can not be obtained.
Therefore, a kind of convenient access bile duct, the cystic duct device for spreading that can provide passage for choledochoscope turnover bile duct can
To solve the above problems well, and wound is small, easy to operate.
Utility model content
The purpose of this utility model is just to provide a kind of convenient access bile duct and provides access way and wound for choledochoscope
Cystic duct device for spreading small, simple to operate.
To achieve these goals, the technical scheme that the utility model is used is：
A kind of cystic duct device for spreading, it is characterised in that including the fixing pipe being coaxially disposed, pusher pipeline and expander,
One end of the pusher pipeline is connected with fixing pipe, the other end is connected by bellows with expander；
The fixing pipe is connected with pusher pipeline, fixation and supporting member as device for spreading；
The pusher pipeline includes outer tube, inner tube and the middle pipe being installed between outer tube and inner tube, one end of outer tube
It is connected with fixing pipe, the other end is connected by bellows with expander, outer tube is coaxially disposed with inner tube, between inner tube and outer tube
Be provided with middle pipe, pipe rotating disk type cylinder in being embedded with the side wall of middle pipe, the piston rod of middle pipe rotating disk type cylinder with it is outer
Pipe is fixed, and pipe is rotated relative to outer tube in drive, and pipe is provided with can driving in the end or middle part of middle pipe in inner tube and outer tube
Between cavity in reciprocating telescopic cylinder, 1 expansion deflection cylinder is provided with the other end of middle pipe, the expansion is inclined
The piston rod of rotaring cylinder is connected with expander, drives expander deflection；
The expander includes cone expansion head, expansion dish-type cylinder and link, and the link is hinged simultaneously with middle pipe
And be connected with the piston rod of expansion deflection cylinder, link is connected by bellows with outer tube, one end extension of cone expansion head
It can slide in link and along the screw pair of link, expansion dish-type cylinder is provided with the outer wall of cone expansion head,
And expansion is realized with shrinking by expanding dish-type cylinder, the outer cover on cone expansion head is equipped with protecting film and passes through protection
Film is connected with outer tube；
Above-mentioned telescopic cylinder, middle pipe rotating disk type cylinder, expansion deflection cylinder, expansion dish-type cylinder are led by gas respectively
Pipe is connected with air pump, and air pump is electrically connected with the controller, and controls its work by controller.
Further, above-mentioned telescopic cylinder is arranged between fixing pipe and middle pipe, one end stretching by annular spread of middle pipe
Contracting cylinder is contacted with fixing pipe, the other end is connected by expanding deflection cylinder with cone expansion head, the cylinder body of the telescopic cylinder
Fixed with outer tube wall, piston rod is connected with the end of middle pipe.
Further, above-mentioned middle pipe includes managing in pipe and hypomere in epimere, and one end of pipe is contacted with fixing pipe in epimere, another
Pipe is connected in telescopic cylinder and hypomere that end passes through annular spread.
Further, connected in above-mentioned epimere between pipe and fixing pipe by rotation ball.
Further, above-mentioned telescopic cylinder is uniformly distributed on same circumference.
Further, bar-shaped trough is machined with the inner and outer wall of above-mentioned middle pipe, and by being inlaid in inside and outside bar-shaped trough
Mobile ball be connected with inner and outer tubes.
Further, the deflection angle of above-mentioned expander is 0~45 °.
Compared with prior art, the beneficial effects of the utility model are：
1) the utility model realizes the elongation of pusher pipeline, expansion effectively using the cooperation of telescopic cylinder and dish-type cylinder
The deflection and expansion of device, and then strutting for cystic duct is realized, convenient passage is provided for choledochoscope turnover bile duct, is prevented effectively from courage
The injury that operation mouth is caused to patient is opened on capsule, and reduces the secondary injury in surgical procedure or reduction operation risk or rear something lost
Disease.
2) consider that cystic duct is a flesh structure, inside have pleat, bad to pass through, the utility model devises three layers
Pipe, inner and outer pipe is smooth design, it is to avoid prick into human body organizes, and middle pipe can extend, can also rotate, and expander head
Portion's diameter is smaller, and head diameter can expand, and expander head can rotate, and expander can extend, convenient access bile duct.
3) the utility model uses Pneumatic Transmission, and control performance is good, can be supportted with overload protection according to human organ
Pressure size needed for specific part designs pressure unloading in open procedure, and reduces the quality and complexity of expander, makes
Expander is more flexible, and such design reduces risk to greatest extent, and surgical procedure is pollution-free, to tissue and organ
It is harmless.
4) material that the utility model is used is harmless to human body and wound for medical high performance material, and material is high
Environmental protection, high transparency, nontoxic, heatproof -60~200 °, acid and alkali-resistance, anticorrosive, tear resistance are good, can use ring under hot conditions
Oxidative ethane is sterilized.
5) device volume of the present utility model is small, portable construction, can meet the support requirement to cystic duct in surgical procedure,
Suitable for medical treatment popularization.
Brief description of the drawings
Fig. 1 is the cystic duct device for spreading structural representation of embodiment 1.
Fig. 2 is Fig. 1 top view.
Fig. 3 is Section A-A schematic diagram in Fig. 2.
Fig. 4 is B direction views in Fig. 2.
Embodiment
The technical solution of the utility model is further described in conjunction with drawings and examples, but the utility model
It is not limited only to following implementation situations.
Embodiment 1
As shown in Figure 1, the cystic duct device for spreading of the present embodiment is by fixing pipe 1, pusher pipeline 2 and expander 3, ripple
Line pipe 4, protecting film 5 and the combination of controller 6 are constituted.
Specifically：The main function of fixing pipe 1 of the present embodiment is to facilitate the fixation in surgical procedure to whole device, be by
Conduit saddle head and connecting tube are constituted, conduit saddle head hardened structure in a ring, and the mouth of pipe of its inner circle tube wall and connecting tube links into an integrated entity structure,
I.e. connection forms a circular channel, and in order to save space, the controller 6 being connected with computer is embedded with conduit saddle head.Should
Fixing pipe 1 is connected with pusher pipeline 2, i.e., be machined with external screw thread on the outer wall of connecting tube, threadedly connect with pusher
Connect.
Referring to Fig. 2 and 3, the pusher pipeline 2 of the present embodiment is by outer tube 2-1, inner tube 2-6, middle pipe 2-4, telescopic cylinder
2-3, expansion deflection cylinder 2-7, rotation ball 2-2, mobile ball 2-5 and middle pipe rotating disk type cylinder 2-8 assemble, its
In, outer tube 2-1 and inner tube 2-6 are concentric and connecting tube of with fixing pipe 1 is threadedly connected, i.e. the connecting tube of fixing pipe 1
The annular space extended between outer tube 2-1 and inner tube 2-6.Outer tube 2-1 is made of very thin medical silica-gel material, and it is protected
Effect, prevents device from increasing human body new wound, and inner tube 2-6 is also to use medical silica-gel material, and its inner surface is smooth, convenient
Choledochoscope is passed in and out, pipe 2-4 in being set with the space between outer tube 2-1 and inner tube 2-6, the middle pipe 2-4 of the present embodiment be by
Pipe 2-4 is constituted in pipe 2-4 and hypomere in epimere, and pipe 2-4 one end processing is fluted wherein in epimere, by setting-in in a groove
Rotation ball 2-2 be connected with the connecting tube of fixing pipe 1, slip when rotating pipe 2-4 in epimere being formed between fixing pipe 1
Friction is changed into rolling friction, reduces the frictional resistance in rotation process, pipe 2-4 in epimere is rotated more flexible.In epimere
Middle pipe rotating disk type cylinder 2-8 is embedded with pipe 2-4 middle part outer wall, middle pipe rotating disk type cylinder 2-8 cylinder body is fixed on
On Duan Zhongguan 2-4, piston rod is fixed with outer tube 2-1, and pipe 2-4 is relative to outer in middle pipe rotating disk type cylinder 2-8 drive epimeres
Pipe 2-1 and inner tube 2-6 is rotated.The pipe 2-4 other end is installed with telescopic cylinder 2-3 with fastener in epimere, by this
Telescopic cylinder 2-3 is connected with pipe 2-4 in hypomere, you can is realized and is driven pipe 2-4 in hypomere to rotate when pipe 2-4 is rotated in epimere.Stretch
Contracting cylinder 2-3 cylinder body threaded fastener is connected with pipe 2-4 in epimere, pipe 2-4 in telescopic cylinder 2-3 piston rod and hypomere
It is connected, the telescopic cylinder 2-3 of the present embodiment is 2, is the installation substantially symmetrical about its central axis on pipe 2-4 in epimere, it is ensured that in hypomere
Force balance on middle pipe 2-4, telescopic cylinder 2-3 piston rod elongation promotes pipe 2-4 in hypomere to be displaced outwardly stretching out.In order to
Ensure that pipe 2-4 movements are flexible in hypomere, reduce frictional force, the present embodiment is in hypomere along tube hub on pipe 2-4 inside and outside wall
Line direction is machined with bar-shaped trough, and mobile ball 2-5 is provided with bar-shaped trough, by mobile ball 2-5 and outer tube 2-1
Wall, inner tube 2-6 wall contacts.Pipe 2-4 end is provided with 1 expansion deflection cylinder 2-7, expansion deflection cylinder 2- in hypomere
7 cylinder barrel is fixed in hypomere on pipe 2-4, and piston rod is connected with expander 3, drives expander 3 to deflect.
The expander 3 of the present embodiment is connected by bellows 4 with outer tube 2-1, and one layer of doctor is enclosed with the outside of expander 3
With the spring protective film 5 of silica gel thin film material, protecting film 5 extends to outer tube 2-1 through bellows 4, connects with outer tube 2-1 ferrules
Connect.The mobile decision for mainly passing through pipe 2-4 in hypomere is shunk in the elongation of the bellows 4 of the present embodiment.Referring to Fig. 4, this reality
The expander 3 for applying example is made up of cone expansion head 3-2, expansion dish-type cylinder 3-3, link 3-1 and hinge 3-4, and taper is expanded
Head 3-2 is connected and composed by 16 expanding blades, cone expansion head 3-2 one end by link 3-1 screw it is secondary with
Pipe 2-4 connections in hypomere, and expanding blade can be made to be slided by screw pair, link 3-1 and pipe 2-4 in hypomere outside leads to
Cross hinge 3-4 to be hinged, and be connected with expansion deflection cylinder 2-7 piston rod, when expansion deflection cylinder 2-7 piston rod is stretched
It is long, stretch the bellows 4 of correspondence position, and opposite side bellows 4 on the other side is motionless, meanwhile, link 3-1 relative to
The hypomere being hinged in pipe 2-4 deflect, rotated around pin joint, cone expansion head 3-2 central shaft and inner tube 2-6 can be made
Central shaft between form 0~45 ° of angle, then adjust the deflection angle according to actual conditions.Cone expansion head 3-2's is another
Flexible expansion dish-type cylinder 3-3 is installed on the outer wall of end, passes through the flexible realization expansion head of the piston rod for expanding dish-type cylinder 3-3
Expand or shrink in end.
Above-mentioned telescopic cylinder 2-3, middle pipe rotating disk type cylinder 2-8, expansion deflection cylinder 2-7, expansion dish-type cylinder 3-3
Connected respectively by gas conduit with each self-corresponding air pump, each air pump passes through electrically-controlled valve and the control being integrated on conduit saddle head
Device 6 is electrically connected, and controls each air pump to work by controller 6, so as to drive each cylinder operation.
The middle pipe rotating disk type cylinder 2-8 of the present embodiment belongs to flexible cylinder with expansion dish-type cylinder 3-3, belongs to commercially available
Product.
Realize that the method that cystic duct is strutted is comprised the steps of using above-mentioned cystic duct device for spreading：
(1) the cone expansion head 3-2 of expander 3 is inserted in cystic duct along cystic duct interruptive port, the conduit saddle of fixing pipe 1
Head is stuck in cystic duct broken ends of fractured bone position, the control telescopic cylinder of controller 6 2-3 piston rod elongation, by pipe 2-4 in hypomere along outer tube
Cavity between 2-1 and inner tube 2-6 is displaced outwardly, and extends to cone expansion head 3-2 into cystic duct and the meet of choledochus；
(2) according to the deflection angle between cystic duct and choledochus, the control of controller 6 is arranged in epimere on pipe 2-4
Middle pipe rotating disk type cylinder 2-8 piston rod elongation, makes in epimere pipe 2-4 phases in the cavity between outer tube 2-1 and inner tube 2-6
Rotated for outer tube 2-1, pipe 2-4 synchronous axial systems in hypomere are driven by telescopic cylinder 2-3, managed so as to adjust and be connected in hypomere
The expansion deflection cylinder 2-7 of 2-4 ends position, makes expansion stretch correspondence position when deflecting cylinder 2-7 piston rod elongation
Bellows 4, makes the link 3-1 of expander 3 be deflected relative to the middle pipe 2-4 being hinged therewith, cone expansion head 3-2 is relative
In inner tube 2-6 deflections, bending channel is formed, is adapted to choledochoscope and enters；
(3) according to the specification size of choledochoscope, expanded using the blade for expanding dish-type cylinder 3-3 control cone expansion heads 3-2
Open, cystic duct is strutted to suitable for choledochoscope and entered from cone expansion head 3-2 along inner tube 2-6, so as to complete choledochoscope warp
Cross the cystic duct after expander 3 is expanded and enter choledochus, realize that cystic duct is strutted.
Embodiment 2
In the present embodiment, telescopic cylinder 2-3 is arranged between connecting tube and middle pipe 2-4, telescopic cylinder 2-3 cylinder body from
Sidepiece is fixed with outer tube 2-1 inwall and inner tube 2-6 outer wall, and the end of piston rod and middle pipe 2-4 is fixed, and passes through telescopic cylinder
2-3 piston rod stretches, and is moved in promotion in cavitys of the pipe 2-4 between outer tube 2-1 and inner tube 2-6.At middle pipe 2-4 middle part
Pipe rotating disk type cylinder 2-8 in being embedded on the wall of side, the pipe 2-4 unitary rotations in middle pipe rotating disk type cylinder 2-8 drives.
Other parts and its annexation are same as Example 1.
The method that cystic duct is strutted is also same as Example 1.
Telescopic cylinder 2-3 in above-described embodiment is at least 2, can also be multiple, but it is preferably can be in a ring
It is distributed on same circumference, and can works asynchronously, it is ensured that middle pipe 2-4 moves uniform force.
The unspecified connected mode of the utility model and dynamical system and control system belong to conventional skill in itself
Art, is not belonging to innovation of the present utility model, the utility model is not limited only to above-mentioned implementation situation, all in technical scheme
On the basis of the equivalents done each fall within the protection domain of the utility model patent.
Claims (7)
1. a kind of cystic duct device for spreading, it is characterised in that including the fixing pipe (1) being coaxially disposed, pusher pipeline (2) and expansion
Prop (3), one end of the pusher pipeline (2) is connected with fixing pipe (1), the other end passes through bellows (4) and expander (3)
Connection；
The fixing pipe (1) is connected with pusher pipeline (2), fixation and supporting member as device for spreading；
The pusher pipeline (2) include outer tube (2-1), inner tube (2-6) and be installed in outer tube (2-1) and inner tube (2-6) it
Between middle pipe (2-4), one end of outer tube (2-1) is connected with fixing pipe (1), the other end passes through bellows (4) with expander (3) even
Connect, outer tube (2-1) is coaxially disposed with inner tube (2-6), middle pipe (2-4) is provided between inner tube (2-6) and outer tube (2-1),
Be embedded with middle pipe rotating disk type cylinder (2-8) on the side wall of middle pipe (2-4), the piston rod of middle pipe rotating disk type cylinder (2-8) with
Outer tube (2-1) is fixed, and (2-4) is managed in drive and is rotated relative to outer tube (2-1), is provided with the end or middle part of middle pipe (2-4)
Reciprocating telescopic cylinder (2-3) in the cavity of (2-4) between inner tube (2-6) and outer tube (2-1) is managed in can driving, in
The other end of pipe (2-4) is provided with 1 expansion deflection cylinder (2-7), the piston rod of expansion deflection cylinder (2-7) and expansion
Device (3) is connected, and drives expander (3) deflection；
The expander (3) includes cone expansion head (3-2), expansion dish-type cylinder (3-3) and link (3-1), the connection
Frame (3-1) is hinged with middle pipe (2-4) and is connected with the piston rod of expansion deflection cylinder (2-7), and link (3-1) passes through ripple
Pipe (4) is connected with outer tube (2-1), and it is interior and can be along link that one end of cone expansion head (3-2) extends to link (3-1)
The screw pair of (3-1) is slided, and expansion dish-type cylinder (3-3) is provided with the outer wall of cone expansion head (3-2), and pass through expansion
Dish-type cylinder (3-3) realizes expansion with shrinking, and the outer cover on cone expansion head (3-2) is equipped with protecting film (5) and passed through
Protecting film (5) is connected with outer tube (2-1)；
Above-mentioned telescopic cylinder (2-3), middle pipe rotating disk type cylinder (2-8), expansion deflection cylinder (2-7), expansion dish-type cylinder (3-
3) connected respectively by gas conduit with air pump, air pump is electrically connected with controller (6), and its work is controlled by controller (6).
2. cystic duct device for spreading according to claim 1, it is characterised in that：The telescopic cylinder (2-3) is arranged on solid
Between fixed tube (1) and middle pipe (2-4), one end of middle pipe (2-4) passes through the telescopic cylinder (2-3) and fixing pipe (1) of annular spread
Contact, the other end are connected by expanding deflection cylinder (2-7) with cone expansion head (3-2), the cylinder body of the telescopic cylinder (2-3)
Fixed with outer tube (2-1) inwall, piston rod is connected with the end of middle pipe (2-4).
3. cystic duct device for spreading according to claim 1, it is characterised in that：The middle pipe (2-4) includes managing in epimere
(2-4) is managed in (2-4) and hypomere, one end of pipe (2-4) is contacted with fixing pipe (1) in epimere, and the other end passes through annular spread
Telescopic cylinder (2-3) is connected with managing (2-4) in hypomere.
4. cystic duct device for spreading according to claim 3, it is characterised in that：(2-4) and fixing pipe are managed in the epimere
(1) connected between by rotation ball (2-2).
5. the cystic duct device for spreading according to Claims 2 or 3, it is characterised in that：The telescopic cylinder (2-3) is same
It is uniformly distributed on circumference.
6. cystic duct device for spreading according to claim 5, it is characterised in that：The inner and outer wall of the middle pipe (2-4)
On be machined with bar-shaped trough, and mobile ball (2-5) and inner tube (2-6) and outer tube (2- by being inlaid in inside and outside bar-shaped trough
1) connect.
7. the cystic duct device for spreading according to any one of Claims 1 to 4, it is characterised in that：The expander (3) it is inclined
Gyration is 0~45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138995.9U CN206444013U (en) | 2016-10-20 | 2016-10-20 | A kind of cystic duct device for spreading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138995.9U CN206444013U (en) | 2016-10-20 | 2016-10-20 | A kind of cystic duct device for spreading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206444013U true CN206444013U (en) | 2017-08-29 |
Family
ID=59662799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621138995.9U Expired - Fee Related CN206444013U (en) | 2016-10-20 | 2016-10-20 | A kind of cystic duct device for spreading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206444013U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422034A (en) * | 2016-10-20 | 2017-02-22 | 天津市南开医院 | Cystic duct opening device and method |
| CN109044486A (en) * | 2018-09-05 | 2018-12-21 | 河南科技大学第附属医院 | A kind of Gastroenterology dept.'s constipation stool drawing device |
| CN109821077A (en) * | 2019-03-06 | 2019-05-31 | 吉林大学 | A kind of bronchoalveolar lavage fluid collecting device |
| CN110478605A (en) * | 2019-09-20 | 2019-11-22 | 中南大学湘雅医院 | A kind of cardiovascular expansion device |
| CN111150488A (en) * | 2020-01-02 | 2020-05-15 | 新乡医学院第一附属医院 | Urinary surgery lithangiuria instrument |
-
2016
- 2016-10-20 CN CN201621138995.9U patent/CN206444013U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422034A (en) * | 2016-10-20 | 2017-02-22 | 天津市南开医院 | Cystic duct opening device and method |
| CN106422034B (en) * | 2016-10-20 | 2022-09-13 | 天津市南开医院 | Cystic duct opening device and method |
| CN109044486A (en) * | 2018-09-05 | 2018-12-21 | 河南科技大学第附属医院 | A kind of Gastroenterology dept.'s constipation stool drawing device |
| CN109044486B (en) * | 2018-09-05 | 2020-05-12 | 河南科技大学第一附属医院 | Constipation stool taking device for gastroenterology department |
| CN109821077A (en) * | 2019-03-06 | 2019-05-31 | 吉林大学 | A kind of bronchoalveolar lavage fluid collecting device |
| CN110478605A (en) * | 2019-09-20 | 2019-11-22 | 中南大学湘雅医院 | A kind of cardiovascular expansion device |
| CN110478605B (en) * | 2019-09-20 | 2021-08-13 | 中南大学湘雅医院 | Cardiovascular expansion device |
| CN111150488A (en) * | 2020-01-02 | 2020-05-15 | 新乡医学院第一附属医院 | Urinary surgery lithangiuria instrument |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 Termination date: 20181020 |