CN203169358U - Support in gullet for gullet rupture and blocking anastomotic leakage - Google Patents
Support in gullet for gullet rupture and blocking anastomotic leakage Download PDFInfo
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- CN203169358U CN203169358U CN 201320172233 CN201320172233U CN203169358U CN 203169358 U CN203169358 U CN 203169358U CN 201320172233 CN201320172233 CN 201320172233 CN 201320172233 U CN201320172233 U CN 201320172233U CN 203169358 U CN203169358 U CN 203169358U
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- gullet
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Abstract
A support in a gullet for gullet rupture and blocking anastomotic leakage relates to a hollow or tubular prosthesis implanted into a body, in particular to a support in the gullet for gullet lower section rupture and blocking the anastomotic leakage of the gullet. The support comprises a support main body and an anti-backflow device, which are made of a degradable material; a stomach end of the support is provided with a dumbbell-shaped fixing structure and a part in a stomach; the dumbbell-shaped fixing structure is formed by a dumbbell-shaped ball part and a dumbbell-shaped concave port capable of being clamped in the position of a cardia or the gullet interface of the stomach after the support is implanted; the part in the stomach is of a skirt-shaped opening extending and expanding from the dumbbell-shaped concave port to a stomach cavity, and the skirt-shaped opening is placed in the stomach cavity after the support is implanted to form a in-stomach leakage blocking port structure at the combining position between the gullet and the stomach; and a moving preventing line is at the closer end of the support in the gullet. The support in the gullet can be reliably and effectively fixed without moving, and the expandable edge of the skirt-shaped opening can perform the function of leakage blocking and effectively preventing contents in the stomach from backflow after the support is implanted.
Description
Technical field
This utility model relates to the prosthese hollow or tubulose in the implantable, relates in particular to a kind ofly to break and the stent in esophagus of esophageal stomal leak shutoff for distal esophagus.
Background technology
Esophageal Stent is mainly used in performing the operation and being associated with narrow patient with esophageal carcinoma for the present clinical medical apparatus and instruments that is widely used, to solve their dysphagia, and the quality of making the life better.The pipeline that adopts plastics is arranged in early days, from nineteen eighty-three, Frimberger has at first reported the achieving success of employing Use of metal stents in treatment esophagostenosis, the type of present used Esophageal Stent is diversified, the pluses and minuses of each support also are not quite similar, and mainly can be divided into following several types according to the material difference of support; 1, stainless steel metal support; 2, memory metal support; 3, polyester plastics support; 4, biodegradable stent etc.; Whether overlay film can be divided into: overlay film frame and non-overlay film frame according to a frame peripheral; According to whether having anti-function of backflowing to be divided into anti-backflowing and the non-anti-support that backflows.
ER or esophagus anastomotic fistula previously more adopts operation or expectant treatment, but along with the popularization of Esophageal Stent in clinical use, also attempts adopting the stent in esophagus treatment for the anastomotic leakage of ER and esophagus postoperative etc. in recent years.But for the patient that gastroesophageal anastomosis leaks, the leak multidigit is in the position of esophagus and stomach interface, and gastral cavity is bigger, and existing Esophageal Stent is inserted the problem that the back existence can't fully shutoff leak.China's utility model patent " esophagus, the mushroom-shaped mushroom covered stent of stomach connecting portion " (patent No.: 03235770.2, authorize publication No.: CN2600062Y) disclosing a kind of lower port is mushroom inner support, can be used for the shutoff anastomotic leakage.
Patient for optimum ER or esophagus anastomotic fistula, particularly be positioned at the patient of distal esophagus cardia for the ER mouth, then need to insert the anti-support that backflows, backflow in case insert the back gastric content, gastric juice oozes out from the esophagus breach, the development that aggravates disease.China's utility model patent " anti-backflow coated esophagus support " (utility model patent number: ZL201120218143.1 Granted publication number: CN202146373U) disclose a kind of anti-coated esophagus support that backflows, edge in coated esophagus rack bore lower end, be provided with at least two and be in contact with one another the connection anti-valve that backflows of bag shape that Open Side Down, the bag shape is anti-, and the backflow top outward flange of valve and the outward flange of side fixedlyed connected with the inner chamber overlay film respectively, after the anti-valve that backflows of bag shape is in contact with one another connection, the inner chamber of complete closed coated esophagus support.
Healing for ER still needs the healing of autologous tissue just can reach healing, if so when inserting support, can discharge medicine or the factor that stimulates tissue growth or infection etc. in the part, will effectively accelerate the healing of disease, Chinese invention patent " but a kind of drug loading cover capsule Esophageal Stent and preparation method thereof " (application for a patent for invention number: 201010532866.9) disclose a kind of Esophageal Stent that is covered with medicine bag, this Esophageal Stent is made up of interior stay pipe and medicine bag two parts, described medicine bag is the cavity that one deck elastomeric material of the effective site of corrugated tube and its outer wrap is sealed to form, a drug-feeding tube that communicates with medicine bag is fixed at the tube wall place in corrugated tube effective site upper end, can promote the disease healing by discharging medicine.
Yet, after inserting inner support for optimum esophagel disease, often after a period of time disease takes a turn for the better, need to remove inner support, Chinese utility model patent " a kind of spiral type degradable Esophageal Stent " (utility model patent number: ZL201220198703.6 Granted publication number: CN202637199U) disclose a kind of spiral type degradable Esophageal Stent.The Esophageal Stent two ends are flaring hollow cylinder dictyosome, and this dictyosome is made up of the elementary cell of rhombus, and the support end is shirt rim shape structure, are worked out being interweaved from molding jig by the filament of degradable polymer preparation.
Though above-mentioned prior art has solved some technical problems of Esophageal Stent manufacturing and use respectively, but do not provide a kind of have anti-backflow, the degradable coated esophagus medicine inner support of shutoff leak, anti-displacement, to satisfy the demand of ER and anastomotic leakage shutoff treatment.In addition, when the Esophageal Stent implantation surgery, also exist support to discharge the bad problem in position, back, particularly for biodegradable stent because it is from swollen performance relative mistake, the problem that easier generation is such, how to fix or to adjust when discharging also is present an open question.Particularly for optimum ER or esophagus anastomotic fistula patient, owing to scarcely there is the esophagostenosis symptom, the problem that also has easy displacement when existing Esophageal Stent uses clinically, owing to need closely to post the effect that just can play treatment on the esophagus mucosa after support is inserted, the positioning and fixing of Esophageal Stent also is the important technological problems that needs solution.
The utility model content
The purpose of this utility model provides a kind of stent in esophagus for ER and anastomotic leakage shutoff, comprehensively solve degradable coated esophagus medicine inner support anti-ly backflow, shutoff leak, anti-displacement and the technical problem of regulating the location.
This utility model solves the problems of the technologies described above the technical scheme that adopts:
A kind of stent in esophagus for ER and anastomotic leakage shutoff comprises degradation material the filament netted circular support main body that is woven into and the anti-recirculation device that places the stomach end, and the near-end of described stent in esophagus is horn opening, it is characterized in that:
The stomach end of described stent in esophagus is provided with part in the dumb-bell shape fixed structure stomach function regulating;
Described dumb-bell shape fixed structure is made of dumb-bell shape bulb and dumb-bell shape notch portion, and support is inserted the position that back dumb-bell shape notch portion is stuck in cardia or stomach esophagus interface, forms the fixed structure that prevents the support displacement;
Described gastric partly for extending the skirt shape opening that expands from the dumb-bell shape notch portion in gastral cavity, insert the described skirt shape opening in back and place in the gastral cavity by support, and the edge that skirt shape opening expands forms the shutoff leak structure of gastric in the joint portion of esophagus and stomach.
A kind of preferable technical scheme of the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model is characterized in that the near-end of described stent in esophagus is provided with 1～6 anti-line of displacement that is used for regulating backing positions.
A kind of better technical scheme of the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, it is characterized in that described anti-recirculation device is the valve with unidirectional opening of 2-6 lobe leaf, described valve adopts the biomaterial thin film to make, and makes the dumb-bell shape recess position at rack far end; Support insert the described valve in back on the feed the time direct motion open, oppositely then stop gastric content to backflow and enter esophagus.
A kind of optimized technical scheme of the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model is characterized in that described degradation material filament is the filament of degradable polymer material preparation; Described stent in esophagus braiding forms netted circular support, or the circular support of " z " shape braiding.
The another kind of optimized technical scheme of the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model; the surface applied that it is characterized in that described stent in esophagus has outer overgrowth thing thin film; support is inserted the described outer overgrowth thing thin film in back and is closely posted on the esophagus mucosa, forms the protective layer of esophagus inwall.
The beneficial effects of the utility model are:
1, the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, be provided with dumb-bell shape fixed structure and anti-line of displacement, do not open or support force when not enough in that support is fully swollen, can utilize the anti-line of displacement positioning and fixing of near-end, dumb-bell shape recess position aligns the position of cardia or stomach esophagus interface, can make its firm fixation effectively prevent the support displacement.
2, the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, be provided with part in the anti-recirculation device stomach function regulating, patient for optimum ER or esophagus anastomotic fistula, particularly be positioned at the patient of distal esophagus cardia for the ER mouth, after support is inserted, the skirt shape opening of gastric part is positioned at gastral cavity, and the edge that skirt shape opening expands can play the effect of shutoff leak, and gastric content backflows can effectively to prevent support from inserting afterwards.
3, the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, be provided with for the anti-line of displacement of regulating backing positions, both can open or support force plays support bracket fastened effect when not enough in that support is fully not swollen, can be used for the position that the process of inserting is regulated support again, perhaps reclaim support by anti-line of displacement.
4, the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, material at support contains medicine or the factor that stimulates tissue growth or infection etc., can be when inserting support discharge in local slow along with its degraded, thereby effectively accelerate the healing of disease.
Description of drawings
Fig. 1 is the sketch map of the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model;
Fig. 2 is that stent in esophagus of the present utility model is inserted the view in the carrier.
Fig. 3 is three lobe leaf valve structure sketch maps of the anti-recirculation device of stent in esophagus of the present utility model.
Among the figure, 1-prevents line of displacement, the 2-mount proximal end, and the 3-rack body, 4-dumb-bell shape bulb, 5-dumb-bell shape notch portion, 6-gastric part, 7-prevents recirculation device, the valve of the anti-recirculation device of 71-, 72-lobe leaf, 8-carrier, the stent in esophagus that 9-seal wire, 10-do not discharge.
The specific embodiment
In order to understand technique scheme of the present utility model better, describe in detail further below in conjunction with drawings and Examples.
An embodiment of the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model is shown in Fig. 1 figure, comprise the netted circular support main body 3 that the degradation material filament is woven into and the anti-recirculation device 7 that places the stomach end, the near-end 2 of described stent in esophagus is horn opening, the filament that rack body 3 adopts the auxiliary agent of degradation material and certain content to make, the circular support of the netted or Z font helical form that is woven into braiding.Degradable polymer is selected from copolymer or the blend of one or several polymer in the degradable polymer materials such as polylactic acid, polycaprolactone, polyglycolic acid, polylcaprolactone, polyhydroxybutyrate valerate, Polyethylene Glycol, degradable polyurethane.
The stomach end of described stent in esophagus is provided with part 6 in the dumb-bell shape fixed structure stomach function regulating;
Described dumb-bell shape fixed structure is made of dumb-bell shape bulb 4 and dumb-bell shape notch portion 5, and support is inserted the position that back dumb-bell shape notch portion 5 is stuck in cardia or stomach esophagus interface, forms the fixed structure that prevents the support displacement; Do not open or support force when not enough in that support is fully swollen, can utilize the anti-line of displacement 1 of near-end to adjust position and positioning and fixing, when dumb-bell shape notch portion 5 aligns the position of cardia or stomach esophagus interface, re-use foley's tube and come expandable stent, make its firm fixation.
Described gastric part 6 is for extending the skirt shape opening that expands from dumb-bell shape notch portion 5 in gastral cavity, support is inserted the described skirt shape opening in back and is placed in the gastral cavity, and the edge that skirt shape opening expands forms the shutoff leak structure of gastric in the joint portion of esophagus and stomach (esophagus and stomach interface).Patient for the gastroesophageal anastomosis leakage, the leak multidigit is in the position of esophagus and stomach interface, existing Esophageal Stent is inserted the problem that the back existence can't fully shutoff leak, the gastric part 6 of stent in esophagus of the present utility model has the skirt shape opening that obviously expands, after support is inserted, the skirt shape opening that expands is positioned at gastral cavity, and the skirt shape edge of opening that expands can play the effect of complete shutoff leak.
The near-end 2 of the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model is provided with 1～6 anti-line of displacement 1 that is used for regulating backing positions.Two anti-line of displacement 1 are arranged in the embodiment shown in fig. 1.Do not open or support force when not enough if support is fully swollen, anti-line of displacement 1 can play fixing effect; Prevent that line of displacement 1 can also when the support implantation site is too dark, can when the support implantation site is too shallow, can down push by carrier by drawing the adjusting backing positions outside the anti-line of displacement 1 for the position of regulating support, arrives suitable position to bracket adjustment.Can also reclaim support by anti-line of displacement 1 when needing in addition.
Can use the valve of the unidirectional opening of a 2-6 lobe leaf at the anti-recirculation device 7 of stent in esophagus for ER and anastomotic leakage shutoff of the present utility model shown in Figure 1, in Fig. 1 and embodiment shown in Figure 3, anti-recirculation device 7 is the valve 71 with unidirectional opening of 3 lobe leaves 72, as the cardiac valve of human body.The lobe leaf 72 of the valve 71 of unidirectional opening adopts pellosil or biomaterial thin film to make, and makes the dumb-bell shape notch portion 5 at rack far end; 3 lobe leaves 72 that support is inserted rear defence recirculation device 7 on the feed the time direct motion open, oppositely then stop gastric content to backflow and enter esophagus.For the patient of optimum ER or esophagus anastomotic fistula, particularly be positioned at the patient of distal esophagus cardia for the ER mouth, need insert the anti-support that backflows usually.The anti-recirculation device 7 of stent in esophagus of the present utility model can prevent that support from inserting the back gastric content and backflowing, and avoids gastric juice to ooze out and the development that aggravates disease from the esophagus breach.
A better implement example according to the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, be added with x photodevelopment agent in the described degradable polymer material, support is inserted in the process or can be observed the state of support after inserting under the x line, thereby is convenient to observe the process of inserting of support and inserts state.
Another better implement example according to the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model; the surface applied of described stent in esophagus has outer overgrowth thing thin film; after support is inserted; the outer overgrowth thing thin film of the surface applied of support closely posts on the esophagus mucosa, forms the protective layer of esophagus inwall.In the present embodiment, described x photodevelopment agent is added in the outer overgrowth thing thin-film material of stent in esophagus, inserts process or inserts state in order to observe support under the x line.
Further improved embodiment according to the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, in support or covering material or its surface be added with and stimulate tissue growth or anti-infective medicine or the factor, described medicine or the factor can be inserted the back along with its degraded slowly discharges at support.Because distal esophagus breaks and needs the healing of autologous tissue just can reach healing, so when inserting stent in esophagus of the present utility model, can be along with its degraded discharges medicine or the factor that stimulates tissue growth or infection etc. in local slow, thereby can effectively accelerate the healing of disease, be conducive to the healing of disease.
Embodiment
When using the stent in esophagus for ER and anastomotic leakage shutoff of the present utility model, the stent in esophagus 10 that will not discharge earlier before in inserting patient's body is put into carrier 8; Two anti-line of displacement 1 are come out through carrier 8 head ends.The carrier 8 that has a support under the guiding of seal wire 9 through the patient oral cavity or the nostril send into and reach diseased region, anti-line of displacement 1 is pulled out from patient's oral cavity or nostril; After x line location reaches predetermined position, under the x line, progressively discharge stent in esophagus: at first be that gastric part gastric part 6 with support discharges in gastral cavity, adjust backing positions then and continue and discharge, make stomach end dumb-bell shape notch portion 5 just in time be stuck in the position of cardia or anastomotic stoma, continue again to discharge, after rack body 3 and mount proximal end 2 are discharged fully, draw anti-line of displacement 1 and stretching outward.Fixedly seal wire 9, withdraw from carrier 8, from swollen situation, whether need to consider the row balloon expandable according to the patient support.If desired, foley's tube is inserted backing positions through seal wire 9, the row balloon expandable makes support energy firm fixation, perhaps makes abundant swollen the opening of gastric part of support, plays the effect of shutoff.When carrying out the balloon expandable operation, need fixing anti-line of displacement 1, prevent the support displacement.After support expansion is fixing, can cuts off an end of anti-line of displacement 1 and pull it by entrance, have any problem if pull out, but also oral administration enter in the body, make its degraded along with support excrete.Also can remove anti-line of displacement 1 for the part patient, its outer end is retained in outside the mouth, etc. pulling out again after the scaffold degradation.
Those of ordinary skill in the art will be appreciated that; above embodiment illustrates the technical solution of the utility model; and be not to be used as restriction of the present utility model; any variation, modification of the above embodiment being done based on connotation of the present utility model all will drop in the protection domain of claim of the present utility model.
Claims (5)
1. a stent in esophagus that is used for ER and anastomotic leakage shutoff comprises degradation material the filament netted circular support main body that is woven into and the anti-recirculation device that places the stomach end, and the near-end of described stent in esophagus is horn opening, it is characterized in that:
The stomach end of described stent in esophagus is provided with part in the dumb-bell shape fixed structure stomach function regulating;
Described dumb-bell shape fixed structure is made of dumb-bell shape bulb and dumb-bell shape notch portion, and support is inserted the position that back dumb-bell shape notch portion is stuck in cardia or stomach esophagus interface, forms the fixed structure that prevents the support displacement;
Described gastric partly for extending the skirt shape opening that expands from the dumb-bell shape notch portion in gastral cavity, insert the described skirt shape opening in back and place in the gastral cavity by support, and the edge that skirt shape opening expands forms the shutoff leak structure of gastric in the joint portion of esophagus and stomach.
2. the stent in esophagus for ER and anastomotic leakage shutoff according to claim 1 is characterized in that the near-end of described stent in esophagus is provided with 1～6 anti-line of displacement that is used for regulating backing positions.
3. the stent in esophagus for ER and anastomotic leakage shutoff according to claim 1, it is characterized in that described anti-recirculation device is the valve with unidirectional opening of 2-6 lobe leaf, described valve adopts the biomaterial thin film to make, and makes the dumb-bell shape recess position at rack far end; Support insert the described valve in back on the feed the time direct motion open, oppositely then stop gastric content to backflow and enter esophagus.
4. the stent in esophagus for ER and anastomotic leakage shutoff according to claim 1 is characterized in that described degradation material filament is the filament of degradable polymer material preparation; Described stent in esophagus braiding forms netted circular support, or the circular support of " z " shape braiding.
5. the stent in esophagus for ER and anastomotic leakage shutoff according to claim 1; the surface applied that it is characterized in that described stent in esophagus has outer overgrowth thing thin film; support is inserted the described outer overgrowth thing thin film in back and is closely posted on the esophagus mucosa, forms the protective layer of esophagus inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172233 CN203169358U (en) | 2013-04-08 | 2013-04-08 | Support in gullet for gullet rupture and blocking anastomotic leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172233 CN203169358U (en) | 2013-04-08 | 2013-04-08 | Support in gullet for gullet rupture and blocking anastomotic leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203169358U true CN203169358U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320172233 Expired - Lifetime CN203169358U (en) | 2013-04-08 | 2013-04-08 | Support in gullet for gullet rupture and blocking anastomotic leakage |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095696A (en) * | 2013-04-08 | 2014-10-15 | 上海市同济医院 | Intraesophageal stent used for esophageal rupture and stomal leak plugging |
| CN104605965A (en) * | 2015-01-30 | 2015-05-13 | 科塞尔医疗科技（苏州）有限公司 | Anti-displacement esophageal stent apparatus bag |
| CN104771253A (en) * | 2014-01-14 | 2015-07-15 | 上海市同济医院 | Degradable backflow-prevention esophagastro anastomosis support |
| WO2017100977A1 (en) * | 2015-12-14 | 2017-06-22 | 北京阿迈特医疗器械有限公司 | Individualized polymer stent and manufacturing method therefor and use thereof |
| CN108186160A (en) * | 2017-11-28 | 2018-06-22 | 王勇 | The anti-Esophageal Stent that backflows of one kind |
| CN108261212A (en) * | 2016-12-30 | 2018-07-10 | 山东省立医院 | A kind of medical support airbag apparatus and its application method |
| CN110167491A (en) * | 2016-11-09 | 2019-08-23 | 波士顿科学国际有限公司 | Bracket with displacement capacity |
| CN110650707A (en) * | 2017-05-22 | 2020-01-03 | 波士顿科学国际有限公司 | Device and method using a device with a radiopaque filament |
-
2013
- 2013-04-08 CN CN 201320172233 patent/CN203169358U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095696A (en) * | 2013-04-08 | 2014-10-15 | 上海市同济医院 | Intraesophageal stent used for esophageal rupture and stomal leak plugging |
| CN104095696B (en) * | 2013-04-08 | 2016-06-29 | 上海市同济医院 | For the stent in esophagus that ER and anastomotic leakage block |
| CN104771253A (en) * | 2014-01-14 | 2015-07-15 | 上海市同济医院 | Degradable backflow-prevention esophagastro anastomosis support |
| CN104771253B (en) * | 2014-01-14 | 2016-06-08 | 上海市同济医院 | The anti-esophagus and stomach anastomosis bracket that backflows of a kind of degradable |
| CN104605965A (en) * | 2015-01-30 | 2015-05-13 | 科塞尔医疗科技（苏州）有限公司 | Anti-displacement esophageal stent apparatus bag |
| WO2017100977A1 (en) * | 2015-12-14 | 2017-06-22 | 北京阿迈特医疗器械有限公司 | Individualized polymer stent and manufacturing method therefor and use thereof |
| CN108025108A (en) * | 2015-12-14 | 2018-05-11 | 北京阿迈特医疗器械有限公司 | A kind of individual polymer stent and its preparation method and application |
| CN110167491A (en) * | 2016-11-09 | 2019-08-23 | 波士顿科学国际有限公司 | Bracket with displacement capacity |
| CN108261212A (en) * | 2016-12-30 | 2018-07-10 | 山东省立医院 | A kind of medical support airbag apparatus and its application method |
| CN110650707A (en) * | 2017-05-22 | 2020-01-03 | 波士顿科学国际有限公司 | Device and method using a device with a radiopaque filament |
| CN110650707B (en) * | 2017-05-22 | 2021-11-30 | 波士顿科学国际有限公司 | Device and method using a device with a radiopaque filament |
| CN108186160A (en) * | 2017-11-28 | 2018-06-22 | 王勇 | The anti-Esophageal Stent that backflows of one kind |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20130904 |