CN108186072A - A kind of anti-stent that backflows coincideing for hollow organ - Google Patents
A kind of anti-stent that backflows coincideing for hollow organ Download PDFInfo
- Publication number
- CN108186072A CN108186072A CN201810053053.8A CN201810053053A CN108186072A CN 108186072 A CN108186072 A CN 108186072A CN 201810053053 A CN201810053053 A CN 201810053053A CN 108186072 A CN108186072 A CN 108186072A
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- Prior art keywords
- stent
- inflated
- self
- hollow organ
- metal film
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
- A61B17/1215—Coils or wires comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12036—Type of occlusion partial occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00818—Treatment of the gastro-intestinal system
- A61B2017/00827—Treatment of gastro-esophageal reflux
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
Including the metal film coated stent of self-inflated and anti-reflux film, the column type channel of transparent hollow structure is barricaded as by memorial alloy for a kind of anti-stent that backflows coincideing for hollow organ, and macromolecule membrane, which overlays on, forms the metal film coated stent of self-inflated on the inside of the hollow structure；Holder inlet and support outlet turn up, the nearside hollow organ wall having coincide and distal side hollow organ's wall can be attached at, it prevents the metal film coated stent of self-inflated mobile or slips, the metal film coated stent of self-inflated is made to be fixed in previous anastomotic, the macromolecule membrane of the metal film coated stent of self-inflated extends to form anti-reflux film at support outlet.The present invention can be used for opening the operation that hollow organ coincide under abdomen or scope, it is placed in previous anastomotic, it can make tolerant in internal organs proximal chamber body to be drained in distal chamber body by the present apparatus, regardless of pressure size in distal chamber body, it can prevent the content being discharged into distal chamber body from backflowing, prevent because of the generation for all kinds of complication that adverse current causes.
Description
Technical field
The invention belongs to the field of medical instrument technology, more particularly to a kind of anti-stent that backflows coincideing for hollow organ.
Background technology
It is the common art formula of general surgery that hollow organ, which coincide, and common includes gastrointestinal anastomosis, and intestines Surgical healing is other also to wrap
Include Cholangio- jejunostomy, gall-bladder bowel anastomosis etc..Previous anastomosis operation, which needs to open again in abdomen or laparoscopic surgery, to carry out, with scope
The development of technology is punctured under scope and is coincide because its wound is small, restores fast, and without general anesthesia the advantages that clinically carries out rapidly
Come.But since hollow organ is adjusted by vegetative nerve, there is the phenomenon that Rythmic contractions characteristic, previous anastomotic tissue around can draw when shrinking
It plays cavity pressure to change, while pressure differs in different organs, these equal cocoas cause should be from previous anastomotic one-directional flow in imagining
Content adverse current, cause all kinds of complication；Since inflammatory stimulus can lead to hyperblastosis at previous anastomotic, the narrow contracting of previous anastomotic is even
Locking, causes anastomosis operation to fail.
Invention content
In order to overcome the disadvantages of the above prior art, it is used for what hollow organ coincide the purpose of the present invention is to provide a kind of
The anti-stent that backflows, is mainly made of the metal film coated stent of self-inflated and anti-reflux film, and having after hollow organ coincide prevents
Internal organs content is inverse to return function, available for opening the operation that hollow organ coincide under abdomen or scope, is placed in previous anastomotic, can make internal organs
It is tolerant in proximal chamber body to be drained in distal chamber body by the present apparatus, it, can the row of preventing regardless of pressure size in distal chamber body
The content entered in distal chamber body backflows, and finally prevents because of the generation for all kinds of complication that adverse current causes.
The metal film coated stent of self-inflated of the present invention according to built in vascular anastomosis, Cholangio- jejunostomy, biliary tract is proposed for cavity
Internal organs anastomosis bracket can not only make previous anastomotic shape, it is often more important that have the function of to prevent backflowing, can solve both of the aforesaid technology
Problem.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of anti-stent that backflows coincideing for hollow organ, which is characterized in that including metal film coated 1 He of stent of self-inflated
Anti-reflux film 2, wherein, the metal film coated stent 1 of self-inflated is made of memorial alloy and macromolecule membrane, on memorial alloy is barricaded as
Under penetrating hollow structure column type channel 3, macromolecule membrane overlays on the inside of the hollow structure；The metal film coated stent 1 of self-inflated
Holder inlet 4 and support outlet 7 turn up, the nearside hollow organ wall 11 having coincide and distal side hollow organ's wall can be attached at
12, it prevents the metal film coated stent 1 of self-inflated from moving or slipping, the metal film coated stent 1 of self-inflated is made to be fixed in previous anastomotic 10, institute
The macromolecule membrane for stating the metal film coated stent 1 of self-inflated extends to form anti-reflux film 2 at support outlet 7.
The metal film coated stent 1 of self-inflated has the specification of sizes diameter and length combination.For example, column type channel
3 diameter 9 has 10mm, 12mm, 14mm, 16mm, 18mm equal-specification, and longitudinal length has 1cm, 2cm, 3cm equal-specification.
The memorial alloy is to have been used for that clinical to meet being placed in for a long time for human-body biological compatibility safety internal at present
Memorial alloy.
The holder inlet 4 and support outlet 7 of the metal film coated stent 1 of self-inflated turn up to form umbrella or mushroom head.
For example, 4 exapnsion of holder inlet turns up to form nearside wing mushroom head 5,7 exapnsion of support outlet turns up to form distal side wing mushroom head 6.
The macromolecule membrane and 2 material of anti-reflux film are consistent, be macromolecule superhydrophobic film, gastric juice, intestinal juice,
The content of the components such as bile is easy to pass through, and is not easy to adhere to, and microorganism is difficult to growth of inversely creeping.
Anti-reflux film 2 is natural extension of the macromolecule membrane at support outlet 7, and answers folding and form sleeve tubular structure,
In nature fit-state or natural adsorbed state at 2 distal opening of anti-reflux film.
Anti-reflux film 2 can be bonded naturally when the liquid for having aqueous ingredients flows through, and under fit-state, fitting is horizontal
The width of exhibition is the major diameter of the anti-reflux film 2 of sleeve shape, is turned up umbrella or mushroom equal to holder inlet 4 and support outlet 7
The width 8 of head, the minor axis of anti-reflux film 2 are not less than the diameter 9 of column type channel 3.The anti-reflux film 2 of sleeve shape has major diameter
And minor axis, it is more advantageous to double film fittings under natural conditions.
Maximum width is equal or slightly larger than metal film coated 1 exapnsion of stent of self-inflated at 2 distal opening of anti-reflux film
The pi/2 of internal diameter times afterwards, the vertical length axial along the metal film coated stent 1 of self-inflated is more than the opening maximum width, anti-to return
Stream film 2, which is installed, to be placed on afterwards in vivo in identical distal chamber body.
During the metal film coated 1 non-exapnsion of stent of the self-inflated, it can be compressed to and clinical pushed away with common 10.8Fr equal-specifications stent
It send in stent pushing device outer sheath 13 and the pusher in the conveying lead sheath of device between sheath 14.
The metal film coated stent 1 of self-inflated can be used for opening the operation that hollow organ coincide under abdomen or scope；It is in biology
Internal mounting means is similar with clinical common all kinds of stents, and the installation under scope intervention can be used seal wire 16 and guide, professional device
Tool pushes, can voluntarily exapnsion and fixation behind the designated position in arrival previous anastomotic 10.
It according to the present invention, is unidirectionally flowed out, but when remote pressure is high, resisted by holder inlet 4 and distal end anti-reflux film 2
2 inner surface of film that backflows fits closely under hyperbaric environment, and remote content object proximally countercurrently, can not realize anti-reflux work(in direction
Energy.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention is a kind of functional previous anastomotic holder device of tool, is coincide suitable for opening hollow organ under abdomen or scope
Operation (including gastrointestinal anastomosis, intestines Surgical healing, Cholangio- jejunostomy, gall-bladder bowel anastomosis etc.), be placed at previous anastomotic, it is simple in structure,
Clear principle can fundamentally prevent hollow organ previous anastomotic and inversely backflow all kinds of complication of initiation, clinical at present temporarily without should
It is the technological gap in presently relevant field with the stent available for hollow organ anastomosis with anti-reflux function；
2nd, the present invention has different model, can select the model of suitable dimension is different with to coincide from operative doctor
Mouthful.
Description of the drawings
Fig. 1 is the anti-stent appearance diagram of backflowing that the present invention coincide for hollow organ.
Fig. 2 is that the present invention sees signal for anti-stent displaying anti-reflux film the widest part front of backflowing that hollow organ coincide
Figure.
Fig. 3 is that the present invention sees signal for the anti-most narrow place front of stent displaying anti-reflux film of backflowing that hollow organ coincide
Figure.
Fig. 4 is that the present invention sees and (observed from holder inlet direction) signal for the anti-cradle top surface of backflowing that hollow organ coincide
Figure.
Fig. 5 is that the present invention shows for the anti-cradle bottom surface sight (being observed from anti-reflux film direction) of backflowing that hollow organ coincide
It is intended to.
Fig. 6 is the anti-stent release distal side wing mushroom head scheme of installation that backflows that the present invention coincide for hollow organ.
Fig. 7 is the anti-stent that backflows that coincide for hollow organ of the present invention installation is complete schematic diagram.
Specific embodiment
For the ease of understanding the purpose of the present invention, technical solution and its effect, now the present invention will be done in conjunction with the embodiments into
One step elaborates.
A kind of anti-stent that backflows coincideing for hollow organ of the present invention, can be placed in previous anastomotic in surgical procedure, due to
Design feature voluntarily exapnsion can be fixed on previous anastomotic and prevent from moving after coincideing, and position is fixed, and can support previous anastomotic form for a long time,
It keeps previous anastomotic unobstructed and plays anti-reflux function.
The present invention is suitable for opening the operation that hollow organ coincide under abdomen or scope, is placed in previous anastomotic, can make internal organs proximal end
Cavity content is drained to by apparatus of the present invention in distal chamber body, can prevent the content being discharged into distal chamber body from backflowing, and is prevented
The generation of all kinds of complication only caused by adverse current.
Concrete structure of the present invention as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, including the metal film coated branch of self-inflated
2 two large divisions of frame 1 and anti-reflux film.
Wherein, the metal film coated stent 1 of self-inflated meets growing for human-body biological compatibility safety by having been used for clinic at present
Phase is placed in internal memorial alloy and macromolecule membrane is formed, and memorial alloy is barricaded as the column type channel 3 of transparent hollow structure,
Macromolecule membrane overlays on the inside of the hollow structure；4 exapnsion of holder inlet of the metal film coated stent 1 of self-inflated turns up to form nearside
Wing mushroom head 5,7 exapnsion of support outlet turn up to form distal side wing mushroom head 6.The nearside hollow organ wall 11 having coincide can be attached at
It with distal side hollow organ's wall 12, prevents the metal film coated stent 1 of self-inflated from moving or slipping, makes the metal film coated stent 1 of self-inflated solid
Due in previous anastomotic 10.
The macromolecule membrane of the metal film coated stent 1 of self-inflated extends naturally at support outlet 7, and answers folding and form sleeve shape
The anti-reflux film 2 of structure is in nature fit-state at 2 distal opening of anti-reflux film.In the liquid for having aqueous ingredients
It can be bonded naturally when flowing through, under fit-state, the width for being bonded horizontal exhibition is the major diameter of the anti-reflux film 2 of sleeve shape, etc.
Turn up the width 8 of umbrella or mushroom head in holder inlet 4 and support outlet 7, and the minor axis of anti-reflux film 2 leads to not less than column type
The diameter 9 in road 3.The anti-reflux film 2 of sleeve shape has major diameter and minor axis, is more advantageous to double film fittings under natural conditions.
In maximum width is equal or slightly larger than after metal film coated 1 exapnsion of stent of self-inflated at 2 distal opening of anti-reflux film
The pi/2 of diameter times, the vertical length axial along the metal film coated stent 1 of self-inflated are more than the opening maximum width, and anti-reflux is thin
Film 2, which is installed, to be placed on afterwards in vivo in identical distal chamber body.
In the present invention, macromolecule membrane and 2 material of anti-reflux film are consistent, be macromolecule superhydrophobic film, gastric juice,
The content of the components such as intestinal juice, bile is easy to pass through, and is not easy to adhere to, and microorganism is difficult to growth of inversely creeping.
The materials such as macromolecule superhydrophobic film such as polyurethane film, are widely used in clinic, and such material has safety
Biocompatibility, due to its super-hydrophobicity, in the presence of having the liquid of moisture content between double-layer films, can be generated between two membranes
Electrostatic adsorption force, when liquid flows between film, fitting trend is presented in two films always, therefore feature can be made into the valve of one-way
Film.It has mutually clinically been useful for vascular anastomosis, Cholangio- jejunostomy, the metal film coated stent of self-inflated built in biliary tract at present, can prevent
Tube chamber narrow contracting Hypertrophic or repressively, the metal film coated stent 1 of self-inflated of the present invention, available for coincideing for hollow organ, stent
Distal openings have the sleeve shape macromolecule superhydrophobic film of specific form feature, when film inner wall has the liquid object containing moisture
The characteristics of mass flow is out-of-date, and soft film can be bonded to each other, ensure that one-way flow.It can not only make the hollow organ's after coincideing
Previous anastomotic keeps clear, and has the function of anti-the defects of backflowing, fundamentally solving such anastomosis operation, fills up technology sky
In vain.
In the present invention, the metal film coated stent 1 of self-inflated has the specification of sizes diameter and length combination.For example, column
The diameter 9 of type channel 3 has 10mm, 12mm, 14mm, 16mm, 18mm equal-specification, and longitudinal length has 1cm, 2cm, 3cm equal-specification.
The mounting means of the present invention in vivo is similar with clinical common all kinds of stents, and the installation under scope intervention can adopt
It is guided with seal wire 16, professional instrument push, installs, can be compressed to by endoscopic ultrasonography service aisle clinical common under scope
It 10.8Fr and is not limited in the conveying lead sheath of stent pushing device of 10.8Fr, is hidden in stent pushing device outer sheath 13 and pusher
Between interior sheath 14, conveying is drawn by seal wire 16 under the traction of interior sheath probe 15, until entering distal end by previous anastomotic 10
In tissue lumen body；After confirming suitable position, stent pushing device outer sheath 13, the compressed stent of the non-exapnsion of exposure, solution are slowly exited
15 traction functions of sheath probe, stent pushing device outer sheath 13 continue slowly to exit in lock, distal side wing mushroom head 6, column type channel
3rd, nearside wing mushroom head 5 discharges successively；Distal side wing mushroom head 6, which turns up, is attached at distal side hollow organ's inner wall 12；Column type channel 3 is certainly
Exapnsion maximizes the inside for being attached at previous anastomotic 10, and generates tension；Nearside wing mushroom head 5, which turns up, is attached at nearside hollow organ
Inner wall 11；The metal film coated stent 1 of self-inflated can prevent stent from moving from after exapnsion is partially completed action.
As wing mushroom head 6 exapnsion in distal side turns up, the expansion of anti-reflux film 2 of former compressive state is suspended in distal end cavity
It is interior；It is to be confirmed be installed in place after, withdraw from remaining stent pushing system, the probe 15 including sheath in pusher 14 and its end with
And its internal seal wire 16 passed through, complete entire installation steps.
Even if lead to anti-reflux film 2 into column type channel 3 exiting interior sheath 14 or the process of probe 15 or seal wire 16
Portion's fold back, when in proximal chamber body it is tolerant flowed by holder inlet 4 after, you can the anti-reflux film 2 of fold back is extruded into stent and is gone out
Mouth 7, and 2 inner wall of anti-reflux film is bonded, unidirectional valve is formed, instant distal body intracavitary high pressure is flowed into distal chamber body
Substance can not flow into stent (in previous anastomotic 10) again, realize the anti-reflux function of stent.
Further narration is done to the present invention, but present invention is not limited to the embodiments described above above in conjunction with embodiment,
In the knowledge that one skilled in the relevant art has, it can also be made under the premise of present inventive concept is not departed from
Various change, such as the drainage of Pancreatic Psoudocyst.
Claims (9)
1. a kind of anti-stent that backflows coincideing for hollow organ, which is characterized in that including the metal film coated stent of self-inflated (1) and
Anti-reflux film (2), wherein, the metal film coated stent of self-inflated (1) is made of memorial alloy and macromolecule membrane, and memorial alloy is taken
Into the column type channel (3) of transparent hollow structure, macromolecule membrane overlays on the inside of the hollow structure；Self-inflated is metal film coated
The holder inlet (4) and support outlet (7) of stent (1) turn up, and to be attached at two hollow organ inner walls having coincide, prevent certainly
The swollen metal film coated stent of formula (1) is mobile or slips, and the metal film coated stent of self-inflated (1) is made to be fixed in previous anastomotic (10), described
The macromolecule membrane of the metal film coated stent of self-inflated (1) extends to form anti-reflux film (2) at support outlet (7).
2. the anti-stent that backflows coincideing according to claim 1 for hollow organ, which is characterized in that the self-inflated metal
Overlay film frame (1) has the specification of sizes diameter and length combination.
3. the anti-stent that backflows coincideing according to claim 1 for hollow organ, which is characterized in that the self-inflated metal
The holder inlet (4) and support outlet (7) of overlay film frame (1) turn up to form umbrella or mushroom head.
4. the anti-stent that backflows coincideing according to claim 1 for hollow organ, which is characterized in that the self-inflated metal
After overlay film frame (1) exapnsion, holder inlet (4) exapnsion turns up to form nearside wing mushroom head (5), outside support outlet (7) exapnsion
It turns over to form distal side wing mushroom head (6).
5. the anti-stent that backflows coincideing according to claim 1 for hollow organ, which is characterized in that the macromolecule membrane
For macromolecule superhydrophobic film.
6. the anti-stent that backflows coincideing according to claim 1 for hollow organ, which is characterized in that the macromolecule membrane
Extend and answer the anti-reflux film (2) that folding forms sleeve shape at support outlet (7), be at anti-reflux film (2) distal opening
Natural fit-state.
7. the anti-stent that backflows coincideing according to claim 6 for hollow organ, which is characterized in that the fit-state
Under, the width for being bonded horizontal exhibition is the major diameter of the anti-reflux film (2) of sleeve shape, equal to holder inlet (4) and support outlet (7)
The width of umbrella of turning up or mushroom head (8), the minor axis of anti-reflux film (2) are not less than the diameter (9) of column type channel (3).
8. the anti-stent that backflows coincideing according to claim 1 for hollow organ, which is characterized in that the anti-reflux film
(2) maximum width is equal or slightly larger than the pi/2 times of internal diameter after the metal film coated stent of self-inflated (1) exapnsion at distal opening, along from
The vertical length of the swollen metal film coated stent of formula (1) axial direction is more than the opening maximum width, and anti-reflux film (2) is mounted on life
It is placed in identical distal chamber body after in object.
9. the anti-stent that backflows coincideing according to claim 1 for hollow organ, which is characterized in that the self-inflated metal
During overlay film frame (1) non-exapnsion, the stent pushing device outer sheath in the conveying lead sheath of clinic stent pushing device can be compressed to
(13) and in pusher between sheath (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053053.8A CN108186072A (en) | 2018-01-19 | 2018-01-19 | A kind of anti-stent that backflows coincideing for hollow organ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053053.8A CN108186072A (en) | 2018-01-19 | 2018-01-19 | A kind of anti-stent that backflows coincideing for hollow organ |
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| Publication Number | Publication Date |
|---|---|
| CN108186072A true CN108186072A (en) | 2018-06-22 |
Family
ID=62590249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053053.8A Pending CN108186072A (en) | 2018-01-19 | 2018-01-19 | A kind of anti-stent that backflows coincideing for hollow organ |
Country Status (1)
| Country | Link |
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| CN (1) | CN108186072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020238167A1 (en) * | 2019-05-24 | 2020-12-03 | 南微医学科技股份有限公司 | Tissue drainage stent |
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| US20080208314A1 (en) * | 2007-02-22 | 2008-08-28 | Wilson-Cook Medical Inc. | Prosthesis having a sleeve valve |
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| CN208464175U (en) * | 2018-01-19 | 2019-02-05 | 西安交通大学医学院第一附属医院 | A kind of anti-bracket that backflows coincideing for hollow organ |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1815821A1 (en) * | 2006-02-02 | 2007-08-08 | Dr. Karel Volenec - ELLA - CS | Stent delivery system |
| KR20080078265A (en) * | 2007-02-22 | 2008-08-27 | 주식회사 스텐다드싸이텍 | Expandable stent having check valve therein |
| US20080208314A1 (en) * | 2007-02-22 | 2008-08-28 | Wilson-Cook Medical Inc. | Prosthesis having a sleeve valve |
| CN201684049U (en) * | 2010-05-20 | 2010-12-29 | 王志强 | Anti-backflow biliary tract metal film-covered stent |
| KR20130110421A (en) * | 2012-03-29 | 2013-10-10 | 연세대학교 산학협력단 | Stent having valve for preventing flowing backward |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020238167A1 (en) * | 2019-05-24 | 2020-12-03 | 南微医学科技股份有限公司 | Tissue drainage stent |
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