CN203169227U

CN203169227U - Inner tectorial membrane for duodenum

Info

Publication number: CN203169227U
Application number: CN201320152828XU
Authority: CN
Inventors: 万平
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-31
Filing date: 2013-03-31
Publication date: 2013-09-04
Anticipated expiration: 2023-03-31

Abstract

The utility model provides an inner tectorial membrane for duodenum. The inner tectorial membrane for the duodenum is obtained by a biocompatible material, and mainly comprises an elastic ampulla part and a tubular part, wherein the ampulla part is positioned on the bulb of the duodenum; the tubular part can extend to jejunum; the ampulla part comprises a wave-shaped, or V-shaped, or trapezoidal, or zigzag continuous surrounding elastic ring; the elastic ring is obtained by a memory or non-memory biocompatible material; the peak and valley and the curved angle of the elastic ring are single-circle bending springs and are provided with outward anchor hooks; the single-circle bending spring on the lower edge penetrates and surrounds a recovery line; the upper edge of the ampulla part is a wave-shaped, or V-shaped, or trapezoidal or zigzag elastic membrane; the whole bodies of the elastic ring and the ampulla part conform to the movement of the bulb of the duodenum; and the ampulla part and the tubular part can be closed up or folded into a spherical, cylindrical, capsule or spindle shape. The single-circle bending spring has high elasticity and weak sharp injury, can well fix the recovery line attached to the single-circle bending spring, and is favorable to the anatomical structure and the basic physiological function of the duodenum. The inner tectorial membrane for the duodenum can be prepared into medical appliances for treating obesity and diabetes.

Description

Overlay film in a kind of duodenum

Technical field

This utility model relates to a kind of digestive tract built-in medical apparatus, particularly relates to a kind of interior overlay film of duodenum of preventing and treating fat and diabetes.。

Background technology

The operation of stomach turn of tidal stream can be treated obesity.Recently find, after the obese patient accepts this operation, not only body weight significantly descends, and the concurrent type 2 diabetes mellitus state of an illness is also alleviated (Chinese diabetes magazine, 2011,3 (3): 205-208): postoperative needn't insulin injection, also needn't take multiple medicine, can solve the blood glucose problem, and diabetic complication such as hypertension, obesity, blood fat disorder has clear improvement all.22094 routine stomach turn of tidal stream operation post analysis: 84% type 2 diabetes mellitus reverses after surgery fully, and Most patients has stopped oral drugs or insulinize (Chinese Medicine science, 2011,1 (21): 3-5) before leaving hospital.Comprise that abroad U.S. government is all actively promoting the development of this operation, in March, 2011, in second international type 2 diabetes mellitus interventional therapy conference of holding in the USA New York, IDF (IDF) issues a statement first, think that stomach circulation operation can be used for treating fat type 2 diabetes mellitus patient, and can reduce generation and development (the Chinese Medicine science of chronic complicating diseases of diabetes, 2011,1 (22): 1-2), if early operation, but also the prevent diabetes severe complication (the diabetes world: digest periodical, 2011,10:51).

But " operation of stomach turn of tidal stream " has clinical risk, as (Chinese diabetes magazine, 2011,3 (3): 205-208) such as death, intestinal obstruction, anastomotic leakage, pulmonary infarction, deep venous thrombosis, injury of portal vein, respiratory system diseases.Therefore, in duodenum, insert in the duodenum overlay film at body and prevent and treat obesity and diabetes, to substitute above-mentioned " operation of stomach turn of tidal stream ", application value is arranged.

The patent of invention of prior art " duodenal sleeve and carrier thereof " (April 9 2010 applying date, January 11 2012 Granted publication day) cover in trocar sheath the disposable static state of only dependence " memorial alloy " " expansion " though metallic framework " fully be close to " intestinal wall, " metallic framework of duodenal bulb chamber section " that " is bowl type and funnel type " is though " applying duodenal bulb chamber ", but duodenum is movable, especially pyloric cap upper edge, when stomach pylorus expansion affects tight bulboduodenal expansion under along it, this metallic framework is difficult to elastic dilatation and takes advantage of a situation toward distal duodenum and move, when the stomach pylorus bounces back, (the pyloric cap mucosa is thinner, is the predilection site of ulcer for this metallic framework or reverse resetting; Easy damaged mucosa then so repeatedly, and easily stimulate flesh wall tension receptor and easily bring out and feel sick or/and vomiting [Zhou Lu, Ke Meiyun: " stomach and intestine dynamics: basic and clinical " 117 pages]) or the pyloric cap far-end by the dilatation of soft intestinal compensatory incarceration." top of metallic framework terminates in the nearly lateral pylorus of vater's papilla ", though " do not hinder the outflow of gallbladder ductus pancreaticus effluent and enter enteric cavity ", but " fully be close to " intestinal wall because of metallic framework duodenal bulb back segment, still stopped the vater's papilla of the common opening of the common bile duct of descendant duodenum lower end and ductus pancreaticus.

Prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ", 2010 applyings date December 6 days, at 2011 Granted publication day JIUYUE 28 days) for solving fixing problem, hollow metal tube is made the spine fixed claw, " be enclosed within on the tinsel of ring support ", after " fixing " tightly, for solve the problem that removes in the future, prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ") has designed tight mouthful of line again, a tight mouthful line " places the top of ring support ", " can be around a week suitable for reading; also can be around many weeks suitable for reading ", but implant, especially only considering that the spine fixed claw of being made by hollow metal tube on the static ring support of " simple for production; the closing in performance " thrusts the duodenal bulb cavity wall, along with gastrointestinal motility, constantly repeating loosening, ooze out, adhesion.Prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ") is also only considered " smooth surface, soft fine and close " on the flexible pipe material, do not relate to ring support to pyloric cap active adaptability elastic telescopic, do not relate to yet and adopt elastic material to prepare flexible pipe; The elastic tight mouthful of line that do not have of " fixing " in the pyloric cap upper edge " ring support top " more limited ring support complying with the pyloric cap activity.The prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ") is compared with the prior art of aforementioned patent of invention " duodenal sleeve and carrier thereof ", because its ring support and spine fixed claw thereof just are positioned at pyloric cap, though do not stop the vater's papilla of the common opening of the bile duct of descendant duodenum lower end and ductus pancreaticus, but if place the pyloric cap upper edge, when stomach pylorus expansion or retraction affect tight bulboduodenal activity (Zhou Lu under along it, Ke Meiyun: " stomach and intestine dynamics: basic and clinical " 381 pages, 520 pages, 522 pages) time, this ring support and spine fixed claw thereof certainly will hinder bulboduodenal activity, when especially the expansion of stomach pylorus affects pyloric cap movable, the expansion of can not taking advantage of a situation of ring support and spine fixed claw thereof, and penetrate spine fixed claw in the pyloric cap mucosa, inwardly entad catch hold of the pyloric cap mucosal tissue again, other organization activities such as muscular tissue are runed counter under the pyloric cap mucosa of whole and outside centrifugal expansion, obviously, this can not taking advantage of a situation changes or changes very circlet shape support and spine fixed claw thereof, affecting tight at stomach pylorus expansion or retraction during following bulboduodenal activity, is prejudicial to pyloric cap along it; If place the pyloric cap lower edge, gastropyloric expansion or retraction, though to affecting less than affecting the pyloric cap upper edge of pyloric cap lower edge, even if but ignore ring support and spine fixed claw thereof to the infringement of pyloric cap mucosa, then the effect that originally pyloric cap is hidden has just disappeared thereupon.

Prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ", 2010 applyings date December 6 days, at 2011 Granted publication day JIUYUE 28 days) the ring support tinsel V-shaped continuously, the elasticity of this moulding will be weaker than with material and be provided with the moulding of the bent spring of individual pen with sample preparation method at V-type peak valley and Qu Jiao, the sharp property damage of this moulding is better than with material and is provided with the moulding of the bent spring of individual pen with sample preparation method at V-type peak valley and Qu Jiao, " shears open " of this moulding also is worse than with material link closely line or exhausting line attached to it fixing and is provided with the moulding of the bent spring of individual pen with sample preparation method at V-type peak valley and Qu Jiao, and at the transverse diameter stretching motion, link closely line or exhausting line in the duodenum enteric cavity that vertical footpath chyme transports fixing relatively poor all is unfavorable for its anatomical structure and basic physiological function.。

Summary of the invention

Technical problem to be solved in the utility model:

The patent of invention of prior art " duodenal sleeve and carrier thereof " (April 9 2010 applying date, January 11 2012 Granted publication day) in " metallic framework of duodenal bulb chamber section " of the disposable static state of only dependence " memorial alloy " " expansion " of covering trocar sheath " being bowl type and funnel type ", when stomach pylorus expansion affects tight bulboduodenal expansion under along it, this metallic framework is difficult to elastic dilatation and takes advantage of a situation toward distal duodenum and move, when the stomach pylorus bounces back, this metallic framework or reverse resetting (easy damaged mucosa) or the pyloric cap far-end by the dilatation of soft intestinal compensatory incarceration.The overlay film epimere can be the ampulla elastic force film of undaform or V-type or trapezoidal or city wall type in the duodenum described in the utility model, comprise ampulla elastic force film undaform or V-type or trapezoidal or city wall type continue around elastic ring, elastic ring can by the memory or non-memory biocompatible material obtain, elastic ring peak valley and Qu Jiao can be the bent spring of individual pen and have export-oriented grasp, can whole comply with motion and flexible or the elasticity activity in duodenum and bulb, namely can head it off.

Metallic framework duodenal bulb back segment in the patent of invention of prior art " duodenal sleeve and carrier thereof " (April 9 2010 applying date, January 11 2012 Granted publication day) has stopped the vater's papilla of the common opening of the bile duct of descendant duodenum lower end and ductus pancreaticus.Elastic ring described in the utility model just is positioned at pyloric cap, does not stop the vater's papilla of the common opening of the bile duct of descendant duodenum lower end and ductus pancreaticus, namely can head it off.

The utility model patent of prior art " the built-in sleeve pipe of Duodeno-jejunum " (2010 applyings date December 6 days, at 2011 Granted publication day JIUYUE 28 days) for solving fixing problem, only considering that the spine fixed claw of being made by hollow metal tube on the static ring support of " simple for production, closing in performance " thrusts the duodenal bulb cavity wall.Prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ") is also only considered " smooth surface, soft fine and close " on the flexible pipe material, do not relate to ring support to pyloric cap active adaptability elastic telescopic, do not relate to yet and adopt elastic material to prepare flexible pipe; The elastic tight mouthful of line that do not have of " fixing " in the pyloric cap upper edge " ring support top " more limited ring support complying with the pyloric cap activity.If this ring support and spine fixed claw thereof place the pyloric cap upper edge, when stomach pylorus expansion or retraction affect tight along it during following bulboduodenal activity, it certainly will hinder bulboduodenal activity, when especially the expansion of stomach pylorus affects pyloric cap movable, the expansion of can not taking advantage of a situation of ring support and spine fixed claw thereof, and penetrate spine fixed claw in the pyloric cap mucosa, inwardly entad catch hold of the pyloric cap mucosal tissue again, other organization activities such as muscular tissue are runed counter under the pyloric cap mucosa of whole and outside centrifugal expansion, obviously, this can not taking advantage of a situation changes or changes very circlet shape support and spine fixed claw thereof, affecting tight at stomach pylorus expansion or retraction during following bulboduodenal activity, is prejudicial to pyloric cap along it; If this ring support and spine fixed claw thereof place the pyloric cap lower edge, gastropyloric expansion or retraction, though to affecting less than affecting the pyloric cap upper edge of pyloric cap lower edge, even if but ignore ring support and spine fixed claw thereof to the infringement of pyloric cap mucosa, then the effect that originally pyloric cap is hidden has just disappeared thereupon.Ampulla elastic force film described in the utility model and the elastic ring that comprises thereof, can whole comply with motion and flexible or the elasticity activity in duodenum and bulb, both reduce the infringement to the pyloric cap mucosa, hidden pyloric cap again, namely can head it off.Secondly, the exhausting line of wearing around the bent spring of elastic ring lower edge individual pen described in the utility model, be positioned at the less pyloric cap lower edge of relative stretching, extension, do not influence complying with duodenum and bulb motion, reclaim should in during overlay film, this exhausting line is lifted toward the upper end to the bent spring of the individual pen of elastic ring upper limb through endoscopic forceps channel, can extract grasp, draw elastic ring in, reclaim overlay film in the duodenum described in the utility model.

Prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ", 2010 applyings date December 6 days, at 2011 Granted publication day JIUYUE 28 days) the ring support tinsel V-shaped continuously, with compare with the moulding that is provided with the bent spring of individual pen at V-type peak valley and Qu Jiao of sample preparation method with material, the elasticity of this moulding is weak, the damage of sharp property is strong, fixing relatively poor to link closely line or exhausting line attached to it.Though elastic ring described in the utility model also can V-type continue, but V-type peak valley and Qu Jiao at this elastic ring are provided with the bent spring of individual pen, the elasticity of the bent spring of this individual pen is better than, the damage of sharp property will be weaker than, link closely line or exhausting line attached to it fixedly be better than prior art (utility model patent " the built-in sleeve pipe of Duodeno-jejunum ", 2010 applyings date December 6 days, at 2011 Granted publication day JIUYUE 28 days), and be conducive to duodenal anatomical structure and basic physiological function.

The technical solution of the utility model:

Overlay film in the overlay film in a kind of duodenum, described a kind of duodenum, its all parts all can by biocompatible biodegradable or not Biodegradable material obtain.

Overlay film can be divided into ampulla and tube in the described duodenum, and ampulla is positioned at pyloric cap, and tube can be extended to jejunum.

Duodenum and jejunum are complementary in the diameter of described tube, length and thickness and the different people colony, the diameter of optimizing is 10-60mm, length and duodenum coupling also can extend to the one section jejunum that continues with duodenum, length is 80-700mm, and the thickness of overlay film is 0.005mm-1mm in the tube.

Described ampulla is the part of the horn-like tube that continues, the ampulla of optimizing also can be column, spherical, waist drum shape, the thickness of overlay film is 0.005mm-1mm in the ampulla of optimizing, highly be 6mm-100mm, the horn-like tube that continues is progressive open acute angle, and the angle of optimization is 5 ℃-65 ℃.Its thickness, height and angle and different crowd bulk phase coupling.

As optimization, overlay film ampulla in the described duodenum, upper limb can be undaform or V-type or trapezoidal or city wall type elastic force film, ampulla comprise peak undaform or V-type or trapezoidal or city wall type continue around elastic ring.The elastic ring silk of optimizing directly can be 0.05mm-1mm, and the bent spring diameter of the peak valley of optimization and the individual pen at bent angle can be 0.5mm-5mm, and elastic ring and ampulla are combined as a whole.As optimization, open and flat elastic ring can be undaform or V-type or the trapezoidal or city wall type of the bent spring of band individual pen at peak valley and bent angle.The open and flat elastic ring of described different shape can individual pen around ampulla, also can multi-turn.The angle of the grasp of optimizing is 5 ℃-75 ℃, and the grasp length of optimization is 0.3mm-10mm.

As optimization, overlay film ampulla elastic ring in the described duodenum, can by memory or non-memory biocompatible material obtain, elastic ring and ampulla integral body can be complied with the motion in duodenum and bulb and flexible or elasticity activity.

As optimization, wear the exhausting line around elastic ring peak valley and the bent spring of bent angle lower edge individual pen, can select biocompatible corrosion resistant memory or non-memory macromolecular material and metal for use.In reclaiming described duodenum, during overlay film, this exhausting line is lifted toward the upper end to the bent spring of the individual pen of elastic ring upper limb through endoscopic forceps channel, can extract grasp, draw elastic ring in, reclaim the interior overlay film of duodenum described in the utility model.

As optimization, the overlay film ampulla can draw in or be folded into spherical or cylindric or capsule shape or spindle shape with tube external in the described duodenum.

Overlay film in the described duodenum, soft, smooth, flexible, histocompatibility is good, does not have acute general reaction, does not have chronic general reaction, does not have acute local response, does not have chronic local response.

Overlay film in the described duodenum, can assist to descend to send into duodenum through upper digestive tract at scope and radioscopy, if memory material, then under the memory temperature of enteral, launch gradually, the ampulla position duodenal cap of interior overlay film, the lower limb of ampulla does not hinder bile duct ductus pancreaticus liquid and enters enteric cavity at the nearly stomach lateral pylorus of vater's papilla and additional teat (or microthelia).Descendant duodenum, horizontal part and ascending part that the tube position duodenal cap of interior overlay film continues, the jejunal segment that the tube position ascending part of duodenum of prolongation continues.

Described around the grasp on the elastic ring of overlay film ampulla in the duodenum, take advantage of a situation and insert duodenal bulb chamber section intestinal mucosa and submucous tissue, the interior overlay film of duodenum is fixed in the duodenum.

Overlay film in the described duodenum with chyme and the shunting of bile pancreatic juice, has avoided the stomach effluent directly in duodenal digestion, absorption, metabolism in vivo, can be prepared into the medical apparatus and instruments of control obesity and diabetes.

The described exhausting line of wearing around the bent spring of elastic ring lower edge individual pen, be positioned at the less pyloric cap lower edge of relative stretching, extension, do not influence complying with duodenum and bulb motion, reclaim should in during overlay film, this exhausting line is lifted toward the upper end to the bent spring of the individual pen of elastic ring upper limb through endoscopic forceps channel, can extract grasp, draw elastic ring in, reclaim overlay film in the duodenum described in the utility model.

Diameter and the number of turns of the number of turns, peak valley and the bent angle ringlet of each span access location length of overlay film, thickness, elastic ring are reference value in the described duodenum, and actual manufacturing can be according to the needs specific design.

The beneficial effects of the utility model:

Overlay film in a kind of duodenum is provided; should in overlay film can by biocompatible biodegradable or not Biodegradable material obtain; mainly formed by elasticity ampulla and tube; ampulla is positioned at pyloric cap; tube can be extended to jejunum; comprise ampulla undaform or V-type or trapezoidal or city wall type continue around elastic ring; elastic ring can by the memory or non-memory biocompatible material obtain; the peak valley of elastic ring and Qu Jiao can be the bent spring of individual pen and have export-oriented grasp; the bent spring of the individual pen of lower edge is worn the wraparound take-up; the ampulla upper limb can be undaform or V-type or trapezoidal or city wall type elastic force film; elastic ring and ampulla integral body can be complied with the motion in duodenum and bulb and stretch or the elasticity activity, and ampulla can draw in or be folded into spherical or cylindric or capsule shape or spindle shape with tube external.Should insert in the duodenum by interior overlay film, can avoid the stomach effluent directly in duodenal digestion, absorption, metabolism in vivo with chyme and the shunting of bile pancreatic juice, can be prepared into the medical apparatus and instruments of control obesity and diabetes.With patent of invention " duodenal sleeve and carrier thereof the " (April 9 2010 applying date of prior art, January 11 2012 Granted publication day) compare, the interior overlay film of duodenum described in the utility model can whole be complied with motion and flexible or the elasticity activity in duodenum and bulb, has reduced bulboduodenal damage, has avoided the incarceration at soft intestinal; Overlay film ampulla elastic ring does not stop the opening of duodenal bile duct and ductus pancreaticus in the duodenum described in the utility model, does not hinder bile duct and the ductus pancreaticus effluent enters intestinal tube.Utility model patent " the built-in sleeve pipe of Duodeno-jejunum " (2010 applyings date December 6 days with prior art, at 2011 Granted publication day JIUYUE 28 days) compare, ampulla elastic force film described in the utility model and the elastic ring that comprises thereof, can whole comply with motion and flexible or the elasticity activity in duodenum and bulb, both reduce the infringement to the pyloric cap mucosa, hidden pyloric cap again.Utility model patent " the built-in sleeve pipe of Duodeno-jejunum " (2010 applyings date December 6 days with prior art, at 2011 Granted publication day JIUYUE 28 days) compare, the exhausting line of wearing around the bent spring of elastic ring lower edge individual pen described in the utility model, be positioned at the less pyloric cap lower edge of relative stretching, extension, do not influence complying with duodenum and bulb motion, reclaim should in during overlay film, this exhausting line is lifted toward the upper end to the bent spring of the individual pen of elastic ring upper limb through endoscopic forceps channel, can extract grasp, draw elastic ring in, reclaim overlay film in the duodenum described in the utility model.Utility model patent " the built-in sleeve pipe of Duodeno-jejunum " (2010 applyings date December 6 days with prior art, at 2011 Granted publication day JIUYUE 28 days) compare, the bent spring of the individual pen that the V-type peak valley of elastic ring described in the utility model and bent angle are provided with, with material with sample preparation method on, its elasticity is eager to excel, the damage of sharp property is wanted weak, will be got well the fixing of link closely line or exhausting line attached to it, and then is conducive to duodenal anatomical structure and basic physiological function.

Description of drawings:

Fig. 1 is structural representation.

Represented parts or the position of label is among Fig. 1: the 1-ampulla; The 2-tube; The 3-elastic ring; The bent spring of 4-individual pen; The 5-grasp; The 6-exhausting line.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and instantiation:

As shown in drawings, this utility model provides overlay film in a kind of duodenum, its all parts all can by biocompatible biodegradable or not Biodegradable material obtain.Overlay film can be divided into ampulla 1 and tube 2 in the described duodenum, and ampulla is positioned at pyloric cap, and tube can be extended to jejunum.

Duodenum and jejunum are complementary in the diameter of described tube, length and thickness and the different people colony, the diameter of optimizing is 10-60mm, length and duodenum coupling also can extend to the one section jejunum that continues with duodenum, length is 80-700mm, and the thickness of overlay film is 0.005mm-1mm in the tube.Described ampulla is the part of the horn-like tube that continues, the ampulla of optimizing also can be column, spherical, waist drum shape, the thickness of overlay film is 0.005mm-1mm in the ampulla of optimizing, highly be 6mm-100mm, the horn-like tube that continues is progressive open acute angle, and the angle of optimization is 5 ℃-65 ℃.Its thickness, height and angle and different crowd bulk phase coupling.

As optimization, overlay film ampulla in the described duodenum, upper limb can be undaform or V-type or trapezoidal or city wall type elastic force film, ampulla comprise undaform or V-type or trapezoidal or city wall type continue around elastic ring 3.3 footpaths of elastic ring of optimizing can be 0.05mm-1mm, and bent spring 4 diameters of the peak valley of the elastic ring of optimization and the individual pen at bent angle can be 0.5mm-5mm, and elastic ring 4 is combined as a whole with ampulla 1.As optimization, open and flat elastic ring 3 can be undaform or V-type or the trapezoidal or city wall type of peak valley and the bent spring 4 of bent angle band individual pen.The open and flat elastic ring 3 of described different shape can individual pen around ampulla 1, also can multi-turn.On the bent spring 4 of the individual pen of described elastic ring 3 grasp 5 is arranged, grasp 5 towards the tube end, the angle of the grasp 5 of optimization is 5 ℃-75 ℃, grasp 5 length of optimization are 0.3mm-10mm.

As optimization, overlay film ampulla elastic ring 3 in the described duodenum, can by memory or non-memory biocompatible material obtain, elastic ring 3 and ampulla 1 integral body can be complied with the motion in duodenum and bulb and flexible or elasticity activity.The peak valley of elastic ring 3 and Qu Jiao can be the bent spring 4 of individual pen and have export-oriented grasp, and the bent spring 4 of the individual pen of lower edge is worn wraparound take-up 6.

As optimization, described exhausting line can be selected biocompatible corrosion resistant memory or non-memory macromolecular material and metal for use.

As optimization, the overlay film ampulla can draw in or be folded into spherical or cylindric or capsule shape or spindle shape with tube external in the described duodenum.Overlay film in the described duodenum, soft, smooth, flexible, histocompatibility is good, does not have acute general reaction, does not have chronic general reaction, does not have acute local response, does not have chronic local response.

The diameter of the bent spring of the number of turns of each span access location length of overlay film, thickness, elastic ring, peak valley and bent angle individual pen is reference value in the described duodenum, and actual manufacturing can be according to the needs specific design.

Embodiment 1

Overlay film in a kind of duodenum, can by biocompatible biodegradable or not Biodegradable material obtain, mainly formed by the ampulla 1 of the elastic ring 3 of grasp 5 by tube 2 and the horn-like outer ring strip winding that continues.

Ampulla 1 can prepare with the static spinning method with tube 2 interior overlay films.Ampulla 1 is 0.01mm with the thickness of tube 2 interior overlay films, and duodenum and jejunum are complementary in the diameter of tube 2 and length and the different people colony, and diameter is 25mm, can extend to the one section jejunum that continues with duodenum, and length is 400mm.The horn-like ampulla that continues 1 highly is 25mm, and the horn-like tube 2 that continues is progressive open acute angle, and angle is 45 ℃.

Ampulla 1 outer ring is around individual pen elastic ring 3, and elastic ring 3 is combined as a whole with ampulla 1, and the silk footpath of elastic ring 3 is 0.05, open and flat elastic ring 3 is V-type, and the bent spring 4 of each individual pen of elastic ring 3 is with a grasp, and grasp 5 length are 1mm, grasp 5 is towards the tube end, and angle 4 is 45 ℃.Complete elastic ring 3 can the static spinning method prepare ampulla 1 in tube 2 during overlay film electrospinning enter, also can in the static spinning method prepares molding ampulla 1 and tube 2, glue together again behind the overlay film.

After finishing with overlay films preparation in the ampulla 1 of complete elastic ring 3 and the tube 2, by hand exhausting line 6 is worn around the bent spring 4 of the individual pen of elastic ring 3 lower edges, worn around the direction unanimity, fit around ampulla one week of 3 lower edges, deduct unnecessary length, knotting is held end to end or gummed is held end to end.

Overlay film is regular in the described duodenum of this patent that preparation is finished folds in the ampulla 3, the elastic ring 3 of entad gathering ampulla 3, in the described duodenum of this patent overlay film spindle shape or olive-shaped, put into pusher, or/and the X line is had an X-rayed, precisely insert pyloric cap and extension thereof according to scope.

In reclaiming the described duodenum of this patent, during overlay film, exhausting line 6 is lifted toward the upper end to the bent spring 4 of the individual pen of elastic ring 3 upper limbs through endoscopic forceps channel, can extract grasp 5, draw elastic ring 3 in, reclaim the interior overlay film of duodenum described in the utility model.

Each length of the present utility model, thickness and diameter etc. are reference value, and actual manufacturing can be according to the individual need specific design.

This utility model does not relate to part and comprises identical prior art, maybe can adopt prior art to be realized.

Claims

1. overlay film in the duodenum; it is characterized in that by biocompatible biodegradable or not Biodegradable material obtain; mainly formed by elasticity ampulla and tube; ampulla is positioned at pyloric cap; tube can be extended to jejunum; comprise ampulla undaform or V-type or trapezoidal or city wall type continue around elastic ring; elastic ring can by the memory or non-memory biocompatible material obtain; the peak valley of elastic ring and Qu Jiao can be the bent spring of individual pen and have export-oriented grasp; the bent spring of the individual pen of lower edge is worn the wraparound take-up; the ampulla upper limb can be undaform or V-type or trapezoidal or city wall type elastic force film; elastic ring and ampulla integral body can be complied with the motion in duodenum and bulb and stretch or the elasticity activity, and ampulla draws in or be folded into spherical or cylindric or capsule shape or spindle shape with tube external.

2. overlay film in the duodenum according to claim 1 is characterized in that being prepared into the medical apparatus and instruments of preventing and treating fat and diabetes.