CN108635092A - Stomach air deflector and its alimentary stent - Google Patents

Abstract

The invention discloses a kind of stomach air deflector and its alimentary stent, which has shape and shape after expansion, including upper bracket, lower bracket and connector before expansion；After deployment under shape, it is equipped with the first opening at the top of upper bracket and bottom is equipped with the second opening, lower bracket is set to below upper bracket, it is equipped with third opening at the top of lower bracket and bottom is equipped with the 4th opening, it is connected by several connectors between upper bracket and lower bracket, the 4th opening connection membrane tube of lower bracket, and, upper bracket and lower bracket after expansion can not be by the pyloric ostium of stomach of opening, and connector by pyloric ostium of stomach or can be threaded through at pyloric ostium of stomach.This programme holder, which is divided into two parts, to be fixed, a part is fixed on pyloric ostium of stomach, membrane tube upper end is fixedly positioning in alimentary canal in peristalsis of the digest tract, another part is fixed on duodenal bulb, in alimentary canal anastalsis, it avoids hypomere from extending membrane tube easily to return in stomach, food is caused not flowed according to design channel.

Description

Stomach air deflector and its alimentary stent

Technical field

The present invention relates to the field of medical instrument technology, especially a kind of for treating endocrine system disease (such as diabetes, pancreas islet Dysfunction, obesity etc.) or disease of lower digestive tract (such as inflammation) stomach air deflector and its alimentary stent.

Background technology

It is known that diabetes are a kind of diseases being gradually valued by the people in recent years, it is one kind in rich people's disease, is source It is continuously improved in the living standard of modern civilization society, after people’s lives affluence, eats good things, eats smart, overnutrition, activity Amount is reduced, to the non-infectious epidemic disease generated, specifically, diabetes refer to the metabolic disease characterized by hyperglycemia Disease.It is since defect of insulin secretion or its biological effect are impaired, or both have concurrently caused by.Diabetes can cause various Tissue, especially eye, kidney, heart, blood vessel, the chronic lesion of nerve, dysfunction.Diabetes are usually along with fat and very More complication cause greatly to threaten to people's health.Data are shown, only Chinese, in 20 years old or more adult, glycosuria The incidence of disease is 9.7%, population about 1.5 hundred million of falling ill.It is known that it is to keep on a diet that common obesity and diabetes, which improve mode, Increase movement, and assist certain drug therapy, this needs the long-term of patient to adhere to, and once stops diet control and movement After easily cause repeatedly and weight gain, the use of long-term drug or insulin also bring heavy financial burden to patient With the inconvenience of life.

Another cure is Gastric bypass, is had very for radical cure type-II diabetes and improvement obesity using Gastric bypass Good effect, in 2001, formal recommendation was metabolized surgical operation (including the operation of stomach turn of tidal stream) conduct to International Diabetes Federation Obesity merges the therapy of type-II diabetes, however Gastric bypass can cause wound as a kind of surgical operation to human body, because This with many risks such as：Death, intestinal obstruction, anastomotic leakage, pulmonary embolism, deep vein thrombosis, injury of portal vein, respiratory system Deng.

Currently, the external structure treatment diabetes also having by being implanted into similar stomach air deflector etc. in the gastrointestinal tract, however, should Stomach air deflector it is complicated, it usually needs more bracing wires be carried out at the same time operation its function just may be implemented, needed before operation through Specialized guidance is crossed, does not have rich experiences and probably will appear operation error, increases sufferer discomfort, is operated more tired Difficulty, in addition manufacturing cost is higher, in addition the problem of technical barrier, it is difficult home to be promoted and applied on a large scale to cause it, A kind of method that patient does not have the treatment diabetes of more sense of discomfort when therefore how to provide implementation, or a kind of structure is provided Simply, easy to operate, the equipment of low-cost treatment diabetes becomes urgent problem to be solved.

At present both at home and abroad there are also being implanted into the product of similar stomach flow-guiding device structure by gastrointestinal tract to treat diabetes, The soft conduit of a piece high molecular material is implanted to duodenum, and the soft conduit generally all passes through a micro metal branch Frame is fixed on duodenal bulb.But since network made of current known material is if not overlay film, it is easy hair It gives birth to hyperplasia and is adhered, implantation a period of time is just difficult to take out later, and the holder of overlay film, then is very easy to fall off.

The product of GI Company Inc. of the U.S. and the design of domestic patent family listed at present, by support Design at V from word Type, band hangnail are fixed on duodenal bulb in the form of hangnail, and the advantage of the design is to be adapted to most patients, But there is also certain problems, and it can be too short to causing Alimentary Tract Perforation because hangnail is too long, it is easy to fall off, according to U.S. GI From the point of view of the clinical literature of company, which clinically has 10% or so expulsion rate, and takes out and be implanted into, and unexpected de- A certain proportion of alimentary canal tearing and bleeding can be caused in the case of falling, there are certain application risks.Such as the conduit falls accidentally Enter distal duodenum, jejunum or even colon, be easy to cause intestinal obstruction.Therefore one is needed preferably to design to evade these Risk.

The patent documents such as Publication No. CN103298518, CN105263439, WO2017/052694 disclose in a kind of stomach Device, including：Cellular structure, the cellular structure include top, bottom and inside and the expansion with the first volume of band Shape after the expansion for the second volume that preceding shape and band are more than first volume, wherein after the expansion under shape, it is described Cellular structure includes at least one first opening for closing on the top and at least one second opening for closing on the bottom So that food passes through at least one first opening to enter the cellular structure, the inside is passed through, and pass through institute It states at least one second opening and exits the cellular structure；And casing, the casing have elongation main body flexible, have the The proximal end of three openings, distal end and inside pipe casing, wherein described sleeve pipe with the 4th opening are coupled to the porosity knot Structure is so that the food for exiting at least one second opening passes through third opening to enter described sleeve pipe, across the set Inside pipe, and it is open across the described 4th and exits described sleeve pipe.In cylinder, ellipse after cellular structure (holder) expansion Body, sphere cube or cuboid, occupy in stomach quite big volume and can freely activity, the diameter of cellular structure are big in stomach In the casing (membrane tube) of the diameter of open pylorus, cellular structure bottom duodenum is extended to across pylorus.In the stomach Device further comprises being located in the joint of the cellular structure and described sleeve pipe and is attached to the porosity knot Structure either described sleeve pipe or two antimigration components, wherein the antimigration component include compression expansion front construction and Constructed after the expansion opened and be designed to close on the pylorus of patient and prevent the cellular structure move to and pass through it is described Pylorus.In above structure, spherical holder has casing (membrane tube) in stomach, outside pylorus, in pylorus entirely, and the mechanism of action is mainly in stomach It is implanted into the device of the memorial alloy braiding of a netted spherical shape, the spherical holder overlay film, which occupies one in stomach Fixed volume can form a kind of satiety, and food can store the regular hour in spherical holder, to reduce food The intake of object plays the role of the metabolic diseases such as treatment obesity and diabetes, and the membrane tube for being used for food drainage is that its is secondary Functional structure.But there are following problems for above-mentioned intragastric device：First, the memory alloy material with self-expanding shape is with one Fixed mechanical force and weight, volume arrive greatly if capable of occupying intragastric volume, to there is certain compressing in stomach, are implanted in meeting pair in stomach Gastric mucosa has compressing, is very easy to cause digestive tract ulcer；Second is that food residence time in sacculus is long, though stomach can be slowed down Emptying, but it is be easy to cause bacteria breed, cause inflammatory reaction；Third, the device is in pyloric ostium or duodenal bulb does not have Fixed, hypomere extends membrane tube and is easily returned in stomach because of alimentary canal anastalsis, and food is caused not flowed according to design channel It is dynamic；Fourth, the membrane tube volume positioned at pyloric ostium is larger, especially after content food, pylorus foreign body sensation is apparent and be easy to cause pylorus It is closed the not illnesss such as tight, bile regurgitation.

The patent documents such as Publication No. CN102335052, CN104382671, CN204671331, CN205359721 disclose A kind of alimentary stent, main body is by multiple interconnecting pieces for having the carrier units of certain rigidity and supporting role and be readily bent Part is formed by connecting, and the both ends of connecting component are connected with corresponding carrier unit respectively, and main body is in the right circular cylinder knot being readily bent Structure or the complex structure being readily bent being made of cylinder and cone；Carrier unit is whole made of being engraved by metal pipe material Structure or structure made of being woven by silk material, connecting component are woven by the good metal wire rod of flexibility or plastic wire, even Wiring generally with upper and lower bracket plane vertical woven.The holder is used for gastral narrow or obstruction, plays expansion and branch Narrow effect is supportted, is implanted in alimentary canal generally as a independent product, is not connected to membrane tube, and because its support is strong Degree is high, is unlikely to deform, so being not used to pyloric ostium in stomach, cannot function as the use of stomach air deflector.

Invention content

In order to solve the above technical problems, the object of the present invention is to provide a kind of stomach air deflector and its alimentary stent, The holder consists of two parts, and a part is fixed on pyloric ostium of stomach, and a part is fixed on duodenal bulb.The holder can carry For certain support force, but there is certain compliance, which can ensure that extended segment membrane tube epimere opening is fixed on 12 Duodenum 12 bulb can be opened and closed with the opening and closing of enteron aisle, will not damage intestinal wall.The membrane tube of extension can treat sugar by the way that food is isolated Urinate the metabolic diseases such as disease, obesity.The holder applicability is good, and manufacture craft is convenient, at low cost, speed of production is fast, for digesting The holder in road, the holder can also be connected with implantable conduit.

For above-mentioned the problems of the prior art, the present inventor devises two-part by carefully studying Holder, and woven using elastic yarn material, it is fixed by pyloric ostium and duodenal bulb both sides, outer film coating prevents Hyperblastosis, can fully solve the problems, such as holder and membrane tube is easy to fall off or easy hyperplasia, and outer rim is smooth, to tissue It is not damaged.Thereby completing the present invention.

Specifically, present invention employs technical solutions below：

A kind of alimentary stent of stomach air deflector, which has shape and shape after expansion before expansion, special Sign is, including upper bracket (1), lower bracket (2) and connector (3)；After deployment under shape, upper bracket (1) is closing on Qi Ding Portion is equipped with the first opening and is closing on its bottom equipped with the second opening, and lower bracket (2) is set to below upper bracket (1), lower bracket (2) it is open equipped with third at the top of it closing on and is open equipped with the 4th closing on its bottom, upper bracket (1) and lower bracket (2) Between pass through several connectors (3) connection, lower bracket (2) the 4th opening connection membrane tube (7), also, be unfolded after upper branch Frame (1) and lower bracket (2) can not pass through the pyloric ostium of stomach (outer diameter of upper bracket (1) and lower bracket (2) after being unfolded of opening More than the pyloric ostium of stomach outer diameter of opening), connector (3) by pyloric ostium of stomach or can be threaded through at pyloric ostium of stomach.In this way, the branch Frame, which is divided into two parts, to be fixed, and a part of (upper bracket) is fixed on pyloric ostium of stomach, in peristalsis of the digest tract that membrane tube upper end is securely fixed In alimentary canal, another part (lower bracket) is fixed on duodenal bulb, in alimentary canal anastalsis, hypomere is avoided to extend for position Membrane tube easily returns in stomach, and food is caused not flowed according to design channel.The holder can provide certain support force, but There is certain compliance again, which can ensure that extended segment membrane tube epimere opening is fixed on duodenal bulb, can be with intestines The opening and closing in road and be opened and closed, intestinal wall will not be damaged.The membrane tube of extension can treat the metabolics such as diabetes, obesity by the way that food is isolated Disease.The holder applicability is good, and manufacture craft is convenient, at low cost, speed of production is fast, is used for gastral holder, the holder is also It can be connected with implantable conduit.

Preferably, the connector (3) is connecting line.The connecting line can be linear or be accumulated with small cross sections thin Strip both can guarantee the connection of upper and lower bracket, and do not influenced flow of food also in this way.In addition, in other embodiment, connector is also Can be flexible membrane tube, mesh-structured elastic tube, with flexible or elasticity connect band or connection sheet etc., but these are connected Even if still volume causes stomach pylorus to be closed not tight and patient discomfort, therefore preferred connecting line compared with conference after part diminution.Connecting line It can be wire, such as Nitinol, 304 stainless steels etc., can also be the macromolecule material for having good elasticity and fatigue durability Expect silk, such as polyethylene, nylon material.

Preferably, overlay film outside the connecting line.In this way, the contact of isolation connecting line and alimentary canal tissue, reduces friction Damage reduces the probability that gastric ulcer occurs.Connecting line outsourcing overlay film elastic-like material prevents connecting filament excessively sharp keen and damages deep and remote Knocker.Preferably, the film elastic-like material of cladding can be silica gel, one or more materials such as polyurethane.

Preferably, the connector (3) includes more connecting lines, the upper end of more connecting lines is separately connected upper bracket (1), The lower end of more connecting lines is separately connected lower bracket (2).In this way, being vertically connected with upper and lower bracket, stress point using more connecting lines Cloth is more uniform, and fixation is relatively reliable.

Preferably, the position of the corresponding pyloric ostium of stomach of the connector (3) will produce in its natural state, to comply with human body deep and remote The bending on doorway or the elastic deformation of reduced outside diameter.In this way, connector passes through sizing treatment, closed substantially when human stomach pylorus is in When conjunction state, the natural extension shape of connector can comply with the structure of human body pyloric ostium and lower part, will not strut pylorus, to deep and remote Door causes to damage, and can extend when up or down under tension, but has shape memory function, in up or down pulling force It can return to the original form when disappearance.

Preferably, the upper bracket (1) is in cone cylinder shape, back taper tubular, straight-tube shape or straw hat shape.In this way, upper bracket Class rectangle, the class that longitudinal sectional view is rectangular, trapezoidal or two sides are arc it is trapezoidal, the first opening of upper bracket, the Two openings and exposed edge can be handled with rounded corner, to avoid injury tissue.Certainly in other embodiments, upper bracket Can also be in spherical or other shapes.

Preferably, the second opening outer diameter of the upper bracket (1) is more than the first opening outer diameter.In this way, the spy of upper bracket Point is that lower ending opening is bigger, can be stuck in pyloric ostium and not damage pyloric tissue, and there are two openings, food to lead to for tool up and down It crosses, but does not have the function of storage food.The effect of upper bracket is to be stuck in pyloric ostium to hold lower bracket, holds duodenum indirectly Interior membrane tube avoids membrane tube from being moved down during peristalsis of the digest tract and is even discharged.Mouth holder is more than pyloric ostium under the upper bracket Diameter, the preferred 20-50mm of diameter.The preferred 20-30mm of back cut diameter.The highly preferred 5-15mm of upper layer bracket 1.

Preferably, the lower bracket is tubular structure.Lower support structure is located inside pyloric ostium, and specifically 12 The major function in duodenum 12 bulb, the structure is in order to which the membrane tube of extension has a opening, food that can enter film by this opening Pipe；Second is that membrane tube is ploughed under from duodenum in stomach in order to prevent, is mutually echoed with upper bracket, membrane tube position is fixed；Third, up and down Holder limits inside and outside pyloric ostium of stomach respectively so that and upper bracket cannot move freely in stomach, be connected with lower bracket and membrane tube, on Holder only has a small amount of displacement in pyloric ostium, avoids discomfort.The outer diameter and under shed of the upper opening (third opening) of lower bracket The outer diameter of (the 4th opening) is preferably identical, and such lower bracket is in straight-tube shape, and the longitudinal sectional view of lower bracket is rectangle or circle Angular moment shape can have some rounded corners up and down, primarily to preventing injury tissue.But the upper opening of lower bracket (open by third Mouthful) outer diameter and the outer diameter of under shed (the 4th opening) can also be different, i.e., the side wall of lower bracket can have certain taper or Person's radian, to adapt to duodenal bulb structure and convenient for connecting membrane tube.

Preferably, a diameter of 15~25cm of the lower bracket, matches with the duodenal bulb diameter of human body, under Support height is 5-20mm.It is preferred that 10mm, this is highly as small as possible under the premise of can meet above functions, to reach human body most Big comfortable limit.

The lower end of upper bracket and the upper end distance of lower bracket are 20-60mm, are preferably closed according to the different anatomical structure of human body Suitable size, principle are to be greater than the height of pyloric ring, and the lower end of lower bracket will avoid duodenofiberscope.

Upper and lower bracket is reticular structure, can be process by the technique for weaving or cutting, and mesh-structured can be water chestnut Shape, honeycombed, the various shapes such as zigzag.The structure allows holder in horizontal and vertical Free Compression and expansion, has good Elasticity.Preferably, upper bracket (1) and lower bracket (2) are compiled by elastic yarn (4), elastic yarn (4) outer surface is covered Overlay film is distinguished in the whole outer surface of film or upper bracket (1), lower bracket (2).It in this way can be with isolation mount silk material and stomach inner tissue Contact, reduce frictionally damage, reduce gastric ulcer occur probability, it can be silica gel to prevent hyperblastosis, polymer material film, One or more of medical materials such as TPU, TPE.The braided wires are to meet the elastic yarn of biocompatibility, can be gold Belong to silk, high molecular material silk either degradation material silk.

Lower bracket is fixedly connected by suture, hot pressing, ultrasonic bonding or laser welding with membrane tube.

Preferably, the upper end of connecting line is fixedly connected at the top of upper bracket (1) close to the position of the first opening, connecting line Lower end and lower bracket (2) at the top of be fixedly connected close to the position of third opening.Such preferred embodiment can be to avoid alimentary canal The bottom crimp that holder bears upper bracket when lower pulling force influences to fix, and is resilient face outside upper bracket bottom and pyloric ostium of stomach Connecting line, upper bracket damage alimentary canal tissue can be reduced or avoided in contact support.

Preferably, the upper end of connecting line is fixedly connected at the top of upper bracket (1) close to the position of the first opening, connecting line In the middle part of pile warp upper bracket (1) after establishment mesh, the lower end of connecting line is fixed at the top of lower bracket (2) close to the position of third opening Connection.When preferred embodiment further in this way can bear upper lower pulling force to avoid alimentary stent upper bracket generation spin upside down from And influence to fix, and be resilient face outside upper bracket and pyloric ostium of stomach and contact support, alimentary canal tissue damage can be reduced or avoided Wound.

Preferably, the upper bracket (1) and lower bracket (2) are equipped with developing ring (6), can in locating support under X-ray, The preferred platinum of the developing ring, gold or tantalum etc..

Preferably, the upper bracket (1) is equipped with upper bracket exhausting line (8), lower bracket (2) is recycled equipped with lower bracket Line (9).Alimentary stent and membrane tube can be taken out by special recover or endoscope-use nipper in this way.

A kind of stomach air deflector, which is characterized in that including alimentary stent as described above.

A kind of stomach air deflector, including storage shell (13), releaser and push component, which is characterized in that the storage In a tubular form, the both ends of the storage shell (13) are opening to shell (13), and what setting was to be released in the storage shell (13) is in The membrane tube (7) of folded state and alimentary stent as described above, the releaser setting are opened in the distal end of storage shell (13) It connect at mouthful and with one end of the membrane tube (7), the releaser is by can be by human body intestinal canal is digested and assimilated or is dissolved material It is made；The push component includes the inner tube (18) for being arranged and capableing of between each other relative motion successively, middle pipe (17) and outer It manages (16), said inner tube (18) part is located in the storage shell (13) and is connect with the releaser；The middle pipe (17) one end is stretched into through storing the proximal openings of shell (13) in the storage shell (13), and the end of the middle pipe (17) The pushing block (14) for pushing against the membrane tube (7) being fixed in the storage shell (13)；Outer tube (16) position In it is described storage shell (13) outside and one end directly or indirectly be fixedly connected on storage shell (13) proximal openings on；Its In, said inner tube (18) is axially facing operator along it and moves that the releaser is made to disengage with the storage shell (13), Inner tube (18) and middle pipe (17) drive the membrane tube (7) to deviate from out of storage shell (13) and are unfolded to discharge.

Preferably, the storage shell (13) is equipped with mark line (25), mark line distance storage shell (13) Distal openings 2 are to 5cm.It is convenient for discharging two holders up and down respectively inside and outside pyloric ostium in this way.

Preferably, the releaser includes release body case (11) and releaser inner core (12), release body case (11) It is arranged at the distal openings of storage shell (13), releaser inner core (12) is connect with inner tube (18), and release body case (11) is wrapped Overlay on releaser inner core (12) outside.

A kind of method for releasing of stomach air deflector, including stomach air deflector as described above and following step：

1) it is in that the membrane tube of folded state and alimentary stent setting are being stored in shell (13), storage shell (13)

Distal openings closed by releaser；

2) under the guiding of seal wire, the releaser for storing shell (13) distal end is sent into duodenum, then by releaser Storage shell is released with membrane tube；

3) storage shell is withdrawn again, until mark line reaches pyloric ostium, lower bracket is released from storage shell, lower bracket Stay in duodenal bulb；

4) storage shell is withdrawn again, and upper bracket is released from storage shell, allows upper bracket to stay in outside pyloric ostium, completes to release It puts.

The present invention can be fixed on pyloric ostium, lower branch as a result of above technical scheme, the upper bracket of alimentary stent Frame can be fixed on duodenal bulb, it is ensured that the membrane tube can be fixed in duodenum steadily in the long term, and will not be damaged It hurts sb.'s feelings body tissue.And the holder outer layer has overlay film, can reduce the friction of holder and tissue, avoids caused by being chronically implanted Hyperblastosis facilitates the taking-up in later stage.And the upper bracket one end open of pyloric ostium is fixed in pyloric ostium, the other end is opened on In stomach, the emptying time of stomach can also be delayed, compared with traditional stomach air deflector or being duodenal sleeve, in treatment glycosuria There is more preferable curative effect in terms of the metabolic diseases such as disease, obesity.The holder applicability is good, and manufacture craft is convenient, at low cost, production Speed is fast.It is connected with alimentary canal membrane tube.Holder of the present invention can plant alimentary canal, for treating endocrine system disease, such as glycosuria Disease, islet function disorder, obesity etc. or disease of lower digestive tract, such as inflammation.Compared with prior art, holder of the invention The hyperplasia organized after implantation is can effectively prevent, and can be for a long time fixed at pyloric ostium and duodenofiberscope, and will not be to people Body alimentary canal causes to damage.And it is good with structure applicability, manufacture craft is convenient, at low cost, speed of production is fast, quality is guaranteed And the advantages that easily manufactured, and comfort, compliance are good after implantation, will not be damaged to tissue.In addition, the branch Frame can also be connected with implantable membrane tube, can be reduced to gastral stimulation after connecting membrane tube, and lifting is made to adjust or recycle branch Frame is more conveniently, safely.

Description of the drawings

Fig. 1 is the structural schematic diagram of stomach air deflector of the present invention；

Fig. 2 is the enlarged structure schematic diagram of stomach air deflector of the present invention distal end；

Fig. 3 is the deployed configuration side view (single line straw hat type holder) of alimentary stent embodiment 1 of the present invention；

Fig. 4 is the deployed configuration front view (single line straw hat type holder) of alimentary stent embodiment 1 of the present invention；

Fig. 5 is the deployed configuration side view (two-wire straw hat type holder) of alimentary stent embodiment 2 of the present invention；

Fig. 6 is the deployed configuration front view (two-wire straw hat type holder) of alimentary stent embodiment 2 of the present invention；

Fig. 7 is the deployed configuration side view (three line trapezoid supports) of alimentary stent embodiment 3 of the present invention；

Fig. 8 is the deployed configuration front view (three line trapezoid supports) of alimentary stent embodiment 3 of the present invention；

Fig. 9 is the deployed configuration side view (two-wire inverted trapezoidal holder) of alimentary stent embodiment 4 of the present invention；

Figure 10 is the deployed configuration side view (two-wire trapezoid support) of alimentary stent embodiment 5 of the present invention；

Figure 11 is the deployed configuration side view (two-wire arc stent) of alimentary stent embodiment 6 of the present invention；

Figure 12 is the deployed configuration schematic diagram of membrane tube of the present invention and alimentary stent；

Figure 13 is membrane tube of the present invention and the schematic diagram that alimentary stent is placed in human body alimentary canal.

Reference sign：1- upper brackets；2- lower brackets；3- connecting lines；4- elastic yarns；5- holder overlay films；6- developing rings； 7- membrane tubes；8- upper bracket exhausting lines；9- lower bracket exhausting lines；11- discharges body case；12- releaser inner cores；13- stores shell； 14- pushing blocks；15- nuts；16- outer tubes；17- middle pipes；18- inner tubes；21- back handles；Handle in 22-；23 limit bulbs；24 remote holders Handle；25 mark lines；101- stomaches；102- pyloric ostiums；103- duodenal bulbs；104- duodenofiberscopes；105- duodenums； 106- jejunums.

Specific implementation mode

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.

In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", " clockwise ", " inverse The orientation or positional relationship of the instructions such as hour hands " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally Invention and simplified description, do not indicate or imply the indicated device or element must have a particular orientation, with specific side Position construction and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two It is a or more than two, unless otherwise restricted clearly.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine Tool connects, and can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two members Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be Concrete meaning in bright.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or "lower" It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " include first special Sign is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of Fisrt feature level height is less than second feature.

A kind of stomach air deflector as shown in Figure 1 and Figure 2, including storage shell 13, releaser and push component, the receipts Receive shell 13 in a tubular form, the both ends of the storage shell 13 are opening, are arranged in the storage shell 13 to be released in folding The membrane tube 7 and alimentary stent of state, the releaser be arranged storage shell 13 distal openings at and with the membrane tube 7 One end connects, and the releaser by the material that human body intestinal canal is digested and assimilated or is dissolved by can be made；The push component includes The inner tube 18, middle pipe 17 and outer tube 16 of relative motion are arranged and are capable of between each other successively, and 18 part of said inner tube is located at It is connect in the storage shell 13 and with the releaser；One end of the middle pipe 17 is stretched into through storing the proximal openings of shell 13 In the storage shell 13, and the end of the middle pipe 17 be fixed with it is described for pushing against in the storage shell 13 The pushing block 14 of membrane tube 7；The outer tube 16 is located at outside the storage shell 13 and one end is directly or indirectly fixedly connected on storage In the proximal openings of shell 13；Wherein, said inner tube 18 is axially facing operator along it and moves to make the releaser and institute It states storage shell 13 to disengage, inner tube 18 and middle pipe 17 drive the membrane tube 7 out of storage shell 13 to deviate from and be unfolded to discharge.

The storage shell 13 is equipped with mark line 25, distal openings 2 of the mark line apart from storage shell 13 to 5cm. The releaser includes release body case 11 and releaser inner core 12, and release body case 11 is arranged to be opened in the distal end of storage shell 13 At mouthful, releaser inner core 12 is connect with inner tube 18, and release body case 11 is coated on outside releaser inner core 12.

A kind of alimentary stent of stomach air deflector as shown in Fig. 3-11, the alimentary stent have shape and exhibition before expansion Open rear shape, including upper bracket 1, lower bracket 2 and connector 3；After deployment under shape, upper bracket 1 is equipped with closing at the top of it First is open and is closing on its bottom equipped with the second opening, and lower bracket 2 is set to 1 lower section of upper bracket, and lower bracket 2 is closing on Qi Ding Portion is equipped with third and is open and is closing on its bottom equipped with the 4th opening, is connected by several between upper bracket 1 and lower bracket 2 Part 3 connect, lower bracket 2 the 4th opening connection membrane tube 7, also, be unfolded after upper bracket 1 and lower bracket 2 can not by The pyloric ostium of stomach (outer diameter of upper bracket 1 and lower bracket 2 after being unfolded is more than the pyloric ostium of stomach outer diameter opened) opened, connector 3 It by pyloric ostium of stomach or can be threaded through at pyloric ostium of stomach.It is fixed in this way, the holder is divided into two parts, a part of (upper bracket) is solid Due to pyloric ostium of stomach, membrane tube upper end is fixedly positioning in alimentary canal in peristalsis of the digest tract, another part (lower bracket) is fixed In duodenal bulb, in alimentary canal anastalsis, avoids hypomere from extending membrane tube and easily return in stomach, cause food not according to setting It is flowed in meter channel.The holder can provide certain support force, but have certain compliance, which can ensure to prolong It stretches a section membrane tube epimere opening and is fixed on duodenal bulb, can be opened and closed with the opening and closing of enteron aisle, intestinal wall will not be damaged.Extend Membrane tube can treat the metabolic diseases such as diabetes, obesity by the way that food is isolated.The holder applicability is good, manufacture craft convenience, It is at low cost, speed of production is fast, be used for gastral holder, which can also be connected with implantable conduit.

The connector 3 is connecting line.The connecting line can be linear or with the fine strip shape that small cross sections are accumulated, so both The connection that can guarantee upper and lower bracket, does not influence flow of food also.In addition, in other embodiment, connector can also be flexible Membrane tube, mesh-structured elastic tube, the connect band with flexibility or elasticity or connection sheet etc., even if but these connectors diminution Still volume causes stomach pylorus to be closed not tight and patient discomfort, therefore preferred connecting line compared with conference afterwards.Connecting line can be metal Silk, such as Nitinol, 304 stainless steels etc. can also be the high molecular material silk for having good elasticity and fatigue durability, such as poly- second The materials such as alkene, nylon.

Overlay film outside the connecting line.In this way, the contact of isolation connecting line and alimentary canal tissue, reduces frictionally damage, reduce The probability that gastric ulcer occurs.Connecting line outsourcing overlay film elastic-like material, prevents connecting filament excessively sharp keen and damages pyloric ring.As It is preferred that the film elastic-like material of cladding can be silica gel, one or more materials such as polyurethane.

The connector 3 includes more connecting lines, and the upper ends of more connecting lines is separately connected upper bracket 1, more connecting lines Lower end is separately connected lower bracket 2.In this way, being vertically connected with upper and lower bracket using more connecting lines, distribution of force is more uniform, fixed It is relatively reliable.

The connector 3 correspond to pyloric ostium of stomach position will produce in its natural state the bending for complying with human body pyloric ostium or The elastic deformation of reduced outside diameter.In this way, connector passes through sizing treatment, when human stomach pylorus is in basic closed state, even The natural extension shape of fitting can comply with the structure of human body pyloric ostium and lower part, will not strut pylorus, be caused to pylorus structure Damage, can extend when up or down under tension, but have shape memory function, when up or down pulling force disappears It can return to the original form.

The upper bracket 1 is in cone cylinder shape, back taper tubular, straight-tube shape or straw hat shape.In this way, the longitudinal cross-section of upper bracket regards Scheme that class rectangle, class that rectangular, trapezoidal or two sides are arc are trapezoidal, the first opening of upper bracket, the second opening and outer Dew edge can be handled with rounded corner, to avoid injury tissue.Certainly in other embodiments, upper bracket can also be in spherical Or other shapes.

Second opening outer diameter of the upper bracket 1 is more than the first opening outer diameter.In this way, the characteristics of upper bracket is lower ending opening It is bigger, pyloric ostium can be stuck in and do not damage pyloric tissue, there are two opening, food can pass through tool, but not have up and down Store the function of food.The effect of upper bracket is to be stuck in pyloric ostium to hold lower bracket, holds duodenal membrane tube indirectly, keeps away Exempt from membrane tube and moves down even discharge during peristalsis of the digest tract.Mouth holder is more than pyloric ostium diameter under the upper bracket, and diameter is excellent Select 20-50mm.Back cut diameter is preferred

20-30mm.The highly preferred 5-15mm of upper layer bracket 1.

The lower bracket is tubular structure.Lower support structure is located inside pyloric ostium, specifically duodenal bulb, The major function of the structure is in order to which the membrane tube of extension has a opening, food that can enter membrane tube by this opening；Second is that being It prevents membrane tube from being ploughed under in stomach from duodenum, is mutually echoed with upper bracket, membrane tube position is fixed；Third, upper and lower bracket limits respectively Position is inside and outside pyloric ostium of stomach so that upper bracket cannot move freely in stomach, be connected with lower bracket and membrane tube, and upper bracket only exists Pyloric ostium has a small amount of displacement, avoids discomfort.The outer diameter and under shed (the 4th opening) of the upper opening (third opening) of lower bracket Outer diameter it is preferably identical, such lower bracket is in straight-tube shape, and the longitudinal sectional view of lower bracket is rectangle or round rectangle, up and down There can be some rounded corners, primarily to preventing injury tissue.But the outer diameter of the upper opening of lower bracket (third opening) and The outer diameter of under shed (the 4th opening) can also be different, i.e., the side wall of lower bracket can have certain taper or radian, with suitable Answer duodenal bulb structure and convenient for connection membrane tube.

A diameter of 15~25cm of the lower bracket matches with the duodenal bulb diameter of human body, lower bracket height For 5-20mm.It is preferred that 10mm, this is highly as small as possible under the premise of can meet above functions, maximum comfortable to reach human body Limit.

The upper end of connecting line is fixedly connected with 1 top of upper bracket close to the position of the first opening, and the lower end of connecting line is under 2 top of holder is fixedly connected close to the position of third opening.Such preferred embodiment can be born up and down to avoid alimentary stent The bottom crimp of upper bracket influences to fix when pulling force, and is resilient face outside upper bracket bottom and pyloric ostium of stomach and contacts support, energy Connecting line, upper bracket damage alimentary canal tissue is enough reduced or avoided.

The upper end of connecting line is fixedly connected with 1 top of upper bracket close to the position of the first opening, connecting line pile warp upper bracket 1 After mesh is worked out at middle part, the lower end of connecting line is fixedly connected with 2 top of lower bracket close to the position of third opening.It is further in this way Preferred embodiment when can bear upper lower pulling force to avoid alimentary stent upper bracket generation spin upside down to influence to fix, and It is resilient face outside upper bracket and pyloric ostium of stomach and contacts support, alimentary canal tissue damage can be reduced or avoided.

The lower end of upper bracket and the upper end distance of lower bracket are 20-60mm, are preferably closed according to the different anatomical structure of human body Suitable size, principle are to be greater than the height of pyloric ring, and the lower end of lower bracket will avoid duodenofiberscope.

Upper and lower bracket is reticular structure, can be process by the technique for weaving or cutting, and mesh-structured can be water chestnut Shape, honeycombed, the various shapes such as zigzag.The structure allows holder in horizontal and vertical Free Compression and expansion, has good Elasticity.Preferably, upper bracket 1 and lower bracket 2 are compiled by elastic yarn 4, and 4 outer surface overlay film of elastic yarn, Huo Zheshang The whole outer surface difference overlay film of holder 1, lower bracket 2.It can be rubbed in this way with the contact of isolation mount silk material and stomach inner tissue, reduction It wears wound, reduces the probability that gastric ulcer occurs, it can be silica gel to prevent hyperblastosis, polymer material film, and TPU, TPE etc. are medical One or more of material.The braided wires are to meet the elastic yarn of biocompatibility, can be wire, macromolecule material Expect silk either degradation material silk.

Lower bracket passes through hot melt, hot pressing, the one kind such as ultrasonic bonding, high-frequency welding, suture or laser welding with membrane tube Or it a variety of is fixedly connected.

Preferably, the upper end of connecting line is fixedly connected with 1 top of upper bracket close to the position of the first opening, connecting line Lower end is fixedly connected with 2 top of lower bracket close to the position of third opening.Such preferred embodiment can be to avoid alimentary stent Bearing the bottom crimp of upper bracket when lower pulling force influences to fix, and is resilient face outside upper bracket bottom and pyloric ostium of stomach and contacts Connecting line, upper bracket damage alimentary canal tissue can be reduced or avoided in support.

Preferably, the upper end of connecting line and the top of upper bracket 1 are fixedly connected close to the position of the first opening, connecting line around After 1 middle part establishment mesh of upper bracket, the lower end of connecting line is fixedly connected with 2 top of lower bracket close to the position of third opening. Upper bracket generation spins upside down to shadow when preferred embodiment further in this way can bear upper lower pulling force to avoid alimentary stent It rings and fixes, and be resilient face outside upper bracket and pyloric ostium of stomach and contact support, alimentary canal tissue damage can be reduced or avoided.

Stomach air deflector includes conveyer and built-in casing.Conveyer is made of handle and delivery conduit, and built-in casing is by disappearing Change road holder and membrane tube composition.Built-in casing enters human body by conveyer, and stays in duodenum.In the present invention, digestion Road holder is made of upper bracket 1 and lower bracket 2, and there is the connection of connecting line 3 in centre.Upper bracket 1 and lower bracket 2 can be by elastic wires Material is worked out or tubular material is cut, and material can be medical implantable material, such as Nitinol, and 316 is stainless Steel, polyurethane, the one or more material such as almag.

The Stent cuts into reticular structure, and network interface can be the various structures such as diamond shape, hexagon, holder Can freely it be stretched and be compressed horizontal and vertical, and can be with spontaneous recovery at the shape and size of pre-setting.

The upper bracket 1 can be fixed on pyloric ostium, and lower ending opening diameter is more than the maximum gauge that pyloric ostium opens, shape Shape include but not limited to be Fig. 3, Fig. 5, Fig. 7, Fig. 9, Figure 10 and Figure 11's is variously-shaped, and principle is can be fixed on pyloric ostium Outside, pyloric ostium, but the normal function by not influencing stomach and pylorus are not fallen into, it will not be to digestive tract wall by damaging.Clinical root is factually Border needs that different holders can be selected.

Preferably, 1 lower mouthful of holder of the upper bracket is more than pyloric ostium diameter, the preferred 20-50mm of diameter.Back cut diameter is excellent Select 20-30mm.The highly preferred 5-15mm of upper layer bracket 1.

The main function of the lower bracket 2 is to be connected with membrane tube, and membrane tube upper end is made to keep opening after bulb is opened Mouth state, it is ensured that chyme can enter in membrane tube, be isolated with digestive tract wall.The shape design of lower bracket 2, which mainly meets, changes The size of duodenal bulb, and slightly larger than the diameter in bulb.

Preferably, 2 lower port diameter of the lower bracket is more than pyloric ostium diameter, the preferred 20-30mm of diameter.Back cut diameter is excellent Select 20-30mm.Slightly larger than human body duodenal bulb diameter.The highly preferred 5-15mm of upper layer bracket 2.

The function of the connecting line is connection upper bracket 1 and lower bracket 2, and the quantity of connecting line can be such as Fig. 3 to Fig. 8 Described 1,2,3 or more.Main function is connection upper bracket 1 and lower bracket 2, when lower bracket 2 is with membrane tube 7 Upper bracket can be caught hold of by connecting line 3 by upper layer bracket 1 when moving down, when upper bracket 1 is toward can be with when floating Lower bracket 2 is dragged by connecting line 3.

The connecting line 3 can be formed by meeting the material that human body implantation requires, as preferably being Nitinol, 316 stainless steels, polyurethane, silica gel, one or more materials such as almag.

Cut or injured to protect pyloric ostium to avoid being connected line 3,3 external sheath biocompatibility of connecting line it is soft Property material, preferably, covering material can be silica gel, polyurethane, the one or more materials such as polyethylene.

The damage of hyperplasia and reduction holder friction to tissue in order to prevent, the upper bracket 1 and lower bracket 2 are all covered with guarantor Cuticula 5.The protective film must be the material for meeting human body implantation and requiring.Preferably, the material of overlay film can be silica gel, Polyurethane, the one or more material such as polyethylene.

There is a certain distance among the upper bracket 1 and lower bracket 2, preferably, the lower end of upper bracket 1 and lower bracket 2 upper segment distance is 20-60mm, and according to human body, different anatomical structures is preferably suitably sized, and principle is to be greater than pyloric ring Height, the lower end of lower bracket 2 will avoid duodenofiberscope 104.

There is developing ring 6 on the upper bracket 1 and lower bracket 2, can clearly be positioned under X-ray, the developing ring can To be the harmless heavy metal material such as platinum, gold, tantalum.

The upper bracket 1 and 2 upper end of lower bracket has exhausting line 8 and exhausting line 9, the exhausting line 8 and 9 difference respectively The outmost turns of upper bracket 1 and lower bracket 2 are sutured in, holder can be taken out simultaneously from internal by special recover or nipper Recycling.When drawing in exhausting line, upper layer bracket 1 and lower floor support 2 bounce back respectively, into scope hyaline cap or specific recycling In device, as endoscope takes out out of human body alimentary canal.The exhausting line 8 and 9 can be that PE, nylon, terylene etc. meet The material of biocompatibility requirement.

A kind of method for releasing of stomach air deflector, including stomach air deflector as described above and following step：

1) it is in that the membrane tube of folded state and alimentary stent setting are being stored in shell 13, stores the distal openings of shell 13 It is closed by releaser；

2) under the guiding of seal wire, the releaser for storing shell 13 distal end is sent into duodenum, then by releaser and Membrane tube releases storage shell；

3) storage shell is withdrawn again, until mark line reaches pyloric ostium, lower bracket is released from storage shell, lower bracket Stay in duodenal bulb；

4) storage shell is withdrawn again, and upper bracket is released from storage shell, allows upper bracket to stay in outside pyloric ostium, completes to release It puts.

Before use, membrane tube and alimentary stent are compressed and are accommodated in storage shell 13, distally by release body case 11 It is closed with inner core 12.In use, distal end releaser enters human body duodenum under the guiding of seal wire.By unlocking releaser Afterwards, then middle pipe 17 is unlocked, handle 22 in promotion first completes first stage push, and releaser and membrane tube 7 are released storage shell 13, then storage shell 13 is withdrawn, until mark line 25 reaches pyloric ostium, lower bracket 2 is released from storage shell 13, completes the Two-stage pushes, and lower bracket 2 stays in duodenal bulb 103, then upper bracket 1 is released from storage shell 13, allows upper bracket 1 Pyloric ostium 102 is stayed in, release is completed.Specifically, when handle operates, limit bulb 23 is first rotated into " 1 " shelves by " 0 " shelves, Middle pipe 17 is unlocked, handle 22 in slowly pushing, power cannot push until being hampered, and first stage push is completed, and body case will be discharged 11 and membrane tube 7 release storage shell 13, then withdraw storage shell 13, until mark line 25 reach pyloric ostium, rotary spacing bulb 23 rotate to " 2 " shelves by " 1 " shelves, unlock middle pipe 17 again, and handle 22 in slowly pushing, until being hampered, power cannot push, and second Stage push is completed, and lower bracket 2 is released from storage shell 13, lower bracket 2 stays in duodenal bulb 103, rotates again Limit bulb 23 rotates to " 3 " shelves by " 2 " shelves, unlocks middle pipe 17, withstands middle handle 22, pull back front hand grip 24, by upper bracket 1 It is released from storage shell 13, upper bracket 1 is allowed to stay in pyloric ostium 102, complete release.) membrane tube 7 with intestines peristalsis reach jejunum Epimere, 12 automatic dissolving of releaser inner core, discharges body case 11 and is disengaged automatically with membrane tube 7, complete release process at this time.Conveyer Human body is withdrawn from from oral cavity, and built-in casing then stays in the body, and plays the role of that food is isolated.

The implantable conduit can play the role of that food is isolated in enteron aisle, change the physiology flow direction of food, implantation After a period of time, the Insulin resistance of patient body is eliminated, and the food stream can also promote patient's body pancreas through mode Island element secretion, reduces Intra-islet Apoptosis and is allowed to rise in value, and islet function restores, and the metabolic diseases such as diabetes, obesity obtain It cures.The stretch modulus of the implantable conduit is 250MP or more, and elongation percentage is more than 230%, and material softness is planted in vivo Phenomena such as nausea caused by after entering, vomiting abdominal pain, can be substantially reduced.

Implantable conduit according to the present invention can plant alimentary canal, for treating endocrine system disease, such as diabetes, pancreas Island dysfunction, obesity etc. or disease of lower digestive tract, such as inflammation.Compared with prior art, of the present invention implantable Conduit, have it is simple in structure, structure applicability is good, manufacture craft is convenient, at low cost, speed of production is fast, quality it is guaranteed with And the advantages that easily manufactured, and comfort, compliance are good after implantation, will not be damaged to tissue.

For compared with the existing technology, upper bracket of the present invention is fixed on pyloric ostium, and lower bracket is fixed on duodenal bulb, And connect membrane tube.Two holders all cannot be freely movable, can only have small-scale displacement, specifically upper layer bracket will not enter Inside pylorus, lower floor support will not enter outside pylorus, and centre has connecting line, displacement range not to exceed connecting line model It encloses.Upper and lower bracket junction height is 1-8cm, different according to different human body structure, the result is that so that upper bracket is located at pylorus Outside, lower bracket is located at duodenal bulb, and the bottom of lower bracket will not arrive duodenofiberscope portion, not influence nipple Normal function.Action principle of the present invention is mainly implanted into a membrane tube in duodenum, and extends to gastral distal end, passes through Food is isolated in membrane tube, to change metabolic mechanism, plays the role of the metabolic diseases such as treatment obesity and diabetes.The effect of holder Predominantly fixed membrane tube, and membrane tube is strutted, allow food that can enter the membrane tube of implantation.Membrane tube (sleeve) length that the present invention extends It is principal functional structure for 600mm-1600mm.Upper bracket is smaller, will not be small under alimentary stent to being caused stress in stomach Upper big structure is easy emptying, and food is not easy to be detained.Pyloric ostium has holder to fix, and echoes up and down, membrane tube position is not easy displacement.

Relative to the patents such as Publication No. CN102335052, CN104382671, CN204671331, CN205359721 text It offers and discloses for a kind of alimentary stent, not only function is different by the present invention, but also structure is also different：In the present invention, on Lower bracket shape is different；Connecting line is arc, needs the anatomical structure for complying with pyloric ostium；Connecting line is generally two or more with even It connects firm；For the fixation of pyloric ostium, an enteron aisle isolation membrane tube is specifically fixed, product has particular application as treatment glycosuria The metabolic diseases such as disease and obesity.Lower bracket needs to connect one section of soft membrane tube, can just play therapeutic purposes.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any One or more embodiments or example in can be combined in any suitable manner.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective In the case of can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.It is all the present invention Within spirit and principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of alimentary stent of stomach air deflector, which has shape and shape after expansion, feature before expansion It is, including upper bracket (1), lower bracket (2) and connector (3)；After deployment under shape, upper bracket (1) is closing at the top of it Equipped with the first opening and its bottom is being closed on equipped with the second opening, and lower bracket (2) is set to below upper bracket (1), lower bracket (2) It is open equipped with third at the top of it closing on and is open equipped with the 4th closing on its bottom, between upper bracket (1) and lower bracket (2) It is connected by several connectors (3), the 4th opening connection membrane tube (7) of lower bracket (2), also, the upper bracket (1) after expansion Can not be by the pyloric ostium of stomach of opening with lower bracket (2), connector (3) by pyloric ostium of stomach or can be threaded through pyloric ostium of stomach Place.

2. a kind of alimentary stent of stomach air deflector according to claim 1, which is characterized in that the connector (3) is to connect Wiring.

3. a kind of alimentary stent of stomach air deflector according to claim 2, which is characterized in that covered outside the connecting line Film.

4. a kind of alimentary stent of stomach air deflector according to claim 2, which is characterized in that the connector (3) includes The upper end of more connecting lines, more connecting lines is separately connected upper bracket (1), and the lower end of more connecting lines is separately connected lower bracket (2)。

5. a kind of alimentary stent of stomach air deflector according to claim 1, which is characterized in that the connector (3) is right The position of pyloric ostium of stomach is answered to will produce the elastic deformation of the bending or reduced outside diameter of complying with human body pyloric ostium in its natural state.

6. a kind of alimentary stent of stomach air deflector according to claim 1, which is characterized in that the upper bracket (1) is in Cone cylinder shape, back taper tubular, straight-tube shape or straw hat shape.

7. a kind of alimentary stent of stomach air deflector according to claim 1, which is characterized in that the upper bracket (1) Second opening outer diameter is more than the first opening outer diameter.

8. a kind of alimentary stent of stomach air deflector according to claim 2, which is characterized in that the upper end of connecting line with it is upper It is fixedly connected close to the position of the first opening at the top of holder (1), the lower end of connecting line is open at the top of lower bracket (2) close to third Position be fixedly connected.

9. a kind of alimentary stent of stomach air deflector according to claim 2, which is characterized in that the upper end of connecting line with it is upper It is fixedly connected close to the position of the first opening at the top of holder (1), in the middle part of connecting line pile warp upper bracket (1) after establishment mesh, connection The lower end of line is fixedly connected at the top of lower bracket (2) close to the position of third opening.

10. a kind of stomach air deflector, which is characterized in that including alimentary stent as claimed in any one of claims 1-9 wherein.