CN203379158U - Smooth-surfaced plugging device for esophagotracheal fistula - Google Patents
Smooth-surfaced plugging device for esophagotracheal fistula Download PDFInfo
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- CN203379158U CN203379158U CN201320234523.3U CN201320234523U CN203379158U CN 203379158 U CN203379158 U CN 203379158U CN 201320234523 U CN201320234523 U CN 201320234523U CN 203379158 U CN203379158 U CN 203379158U
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Abstract
The utility model relates to the field of medical devices, and provides a smooth-surfaced plugging device for the esophagotracheal fistula. The plugging device for the esophagotracheal fistula comprises a near disc, a far disc and a middle columnar structure for connecting the near disc with the far disc; the near disc and the far disc comprise a flow chocking membrane and a netlike plate rail structure arranged outside the flow chocking membrane respectively, and the netlike structure of the far disc is covered by a membrane. The plugging device can be used for effectively preventing substances such as food residues, which can be retained to cause infection, from adhering to the netlike plate rail structure of the far disc or leaking into the discs, accordingly, an infection source is prevented from forming at the connection of the plugging device and trachea and/or esophagus, and the plugging technical problem of the esophagotracheal fistula is pertinently solved.
Description
Technical field
This utility model relates to field of medical devices, more specifically, relates to the stifled device that closes of a kind of ganoid tracheo esophageal fistula.
Background technology
Tracheo esophageal fistula, be mainly because of reasons such as wound, tumor, compressings, originally between adjacent but separate trachea and esophagus, forms the phase circulation passage, makes esophagus side food, secretions etc. enter trachea by the fistula mouth, and produce a series of pathologic effects.
Tracheo esophageal fistula is a kind of serious disease, as found to deal with improperly not in time, septic shock may occur, threat to life even, and its sickness rate is also not low.The sickness rate of finding tracheo esophageal fistula from Autopsy Report is 0.9%～13%, its difference may partly cause with whether actively to find tracheo esophageal fistula in postmortem relevant.The median survival interval that starts tracheo esophageal fistula from diagnosis is 1～6 week, and the postoperative death rate is still up to 40%.And patient often because of ordinary circumstance is poor can not tolerate surgery.If without treatment, most of patients is died from fistula mouth progress in January.The tracheo esophageal fistula that malignant tumor causes accounts for 50%.In patient with esophageal carcinoma approximately 12% patient finally develop into tracheo esophageal fistula.The sickness rate of tracheo esophageal fistula is 0.16% in patients with lung cancer, in tracheocarcinoma patient, is 14.75%.
Tracheo esophageal fistula generally includes Lou road between trachea, bronchus and esophagus, and tracheo esophageal fistula accounts for 52～57%, and broncho-esophageal fistula accounts for 37～40%, and the pulmonary parenchyma esophageal fistula accounts for 3～11%.
Tracheo esophageal fistula occurs in the patient 0.3～3% of long-term circulation of qi promoting cannula or tracheotomy mechanical ventilation, accounts for 75% of acquired non-malignant tracheo esophageal fistula.In recent years, because of reasons such as operation, tumor, tracheal intubation or traffic accident wounds, the sickness rate of tracheo esophageal fistula raises gradually.
Current how first-selected operative treatment, however the operative treatment wound is large, post-operative recovery needs the time long, and part patient gene basis situation is poor, can not the tolerate surgery treatment.The interatrial septum stopper starts to be used to through conduit sealing heart atrial septal defect or patent ductus arteriosus.2006 start, and the report that some use the closed intratracheal fistula mouth of atrial septal defect plugging device success occurs.73 years old male patient of report one example such as Paulo Rog é rio Scordamaglio, because of long-time tracheal intubation, the about 5mm tracheo esophageal fistula of distal esophagus size occurs, uses the sealing of GORE-Helex atrial septal defect plugging device, and the 5 days after operation remission is left hospital.
Put into stopper sealing tracheo esophageal fistula in interatrial septum under clear-headed anesthesia, tracheascope direct-view, wound is little, easy and simple to handle, can play the effect of getting instant result.Compare with traditional treatment means, there is obvious advantage, very likely become the new technique of following effectively treatment tracheo esophageal fistula.
On our times, also do not have specialized designs to be used as the plugging device of tracheo esophageal fistula, use umbrella shape device and various other similar mechanical close devices of originally developing for the percutaneous sealing of carrying out atrial septal defect (ASD) to carry out the shutoff tracheo esophageal fistula, these devices may make the patient avoid the related side effects of common internal medicine conservative treatment and invade the risk of operation.But the umbrella shape device and the similar device that are designed for ASD are not suitable as most the tracheo esophageal fistula plugging device.
Current available interatrial septum locking device existent defect comprises:
There is a spike projection on dish far away top, when food group, especially works as soft wire or strip food through out-of-date, can hang on, and is detained, and forms focus; In esophageal contractions diastole process, tissue constantly with the mutual friction of spike projection phase, effect, cause the erosion of esophagus offside, even form new perforation.
Far dish launches processus aboralis and arises from the esophagus side, when food group, especially works as soft wire or strip food through out-of-date, can directly hang on the place, gap between dish far away and esophagus, hinders dish far away epithelium of esophagus on every side in the epithelization process of panel surface far away.
Between built-in choked flow film and mesh-covered tray structure, gap is arranged, food debris can embed wherein, is detained, and forms focus, and hinders dish far away epithelium of esophagus on every side in the epithelization process of panel surface far away.
Between built-in built-in film and netted disk-like structure, gap is arranged, as be pernicious fistula mouth, tumor tissues can embed wherein growth, causes more serious consequence.
Trachealgia environment and vascular system have notable difference, the operating environment that its plugging device is placed also has obvious difference, temporarily without ready-made use plugging device shutoff tracheo esophageal fistula technology, also without the ready-made commercially produced product that is applicable to tracheo esophageal fistula, need badly for the interatrial septum stopper and improved for the shortcoming of shutoff tracheo esophageal fistula in the market.
the utility model content:
The technical problems to be solved in the utility model is the technical deficiency for the shutoff tracheo esophageal fistula for the interatrial septum stopper, and a kind of new tracheo esophageal fistula stopper is provided
The purpose of this utility model is achieved by the following technical programs:
Provide a kind of ganoid tracheo esophageal fistula to block up and close device, comprise nearly dish and dish far away and be connected nearly dish and the middle column structure of dish far away, described nearly dish and far away coiling are the mesh-covered tray shelf structure that memory material forms; Described mesh-covered tray shelf structure comprises respectively outer face, choked flow film and interior along face, and the two ends of described middle column structure connect respectively the interior along face of nearly dish and dish far away; The memory material of the interior outer face along face and nearly dish of described dish far away is brought together respectively in primary nodal point and secondary nodal point, and primary nodal point is arranged in described middle column structure; The outer bread of described dish far away is wrapped with membrane material.
Preferably, when the diameter of middle column structure is less than or equal to 10mm, the edge of described dish far away and/or nearly dish is indent and distributes.
Preferably, when the diameter of middle column structure is greater than 10mm, the edge of described dish far away and/or nearly dish is outer recessed distribution.When the diameter of middle column structure is larger, the size of dish far away and nearly dish is also larger, edge is indent distribution meeting esophageal wall or tracheal wall is made to larger pressure, produce sense of discomfort, therefore, preferably the edge of dish far away and/or nearly dish is outer recessed distribution, and such dish far away and nearly dish can touch esophageal wall or tracheal wall, can reduce sense of discomfort.
Preferably, described primary nodal point and secondary nodal point are bolt structure.
As a kind of preferred version, the outer face of described dish far away and the interior central authorities along face inwardly bring together in primary nodal point the while.
Preferably, the diameter of described dish far away is longer than the diameter of nearly dish, and the diameter of described nearly dish is longer than the diameter of middle column structure.
As a kind of preferred version, the diameter of described dish far away is than the long 14mm of tubular waist diameter; The diameter of described nearly dish is than the long 10mm of middle column diameter of movement.
As a kind of preferred version, described tubular waist diameter is 5～30mm, and the length of described middle column structure is 4～15mm.
Described memory material is selected from any one or its combination that bio-compatibility shape memory Nitinol, bioresorbable polymers, shape-memory polymer, biocompatible metal, biology can absorb in metal again and makes.
Described choked flow film is by promoting tissue growth and/or make as the flexible biocompatible material of sealant.
By polyester, polytetrafluoroethylene, ePTFE, polyurethane, metal material, polyvinyl alcohol, extracellular matrix ECM, synthesising biological, any one or a few makes described choked flow film in absorbing polymer material, collagen again.
The netted wire rod that forms each dish and waist has shape memory, makes them can collapse in conduit and distortion during carrying, but the shape of recovering and keeping it to want after carrying.
As a kind of preferred version, described nearly dish also is connected with one for connecting the stifled union joint that closes device and conveyer device.More preferably, described union joint is connected with secondary nodal point.
Advantage of the present invention:
This utility model provides a kind of locking device that is applicable to tracheo esophageal fistula, effectively prevents that food and esophagus secretions from entering trachea, has important clinical practice meaning.Described device has following beneficial effect:
1. the locking device that is applicable to tracheo esophageal fistula is provided, the Endoscopic Treatment tracheo esophageal fistula is more easily operated.
2. the smooth design of panel surface far away, the physiological feature and the needs that more meet esophagus, can effectively avoid the thing such as food debris to stick on the mesh-covered tray shelf structure of dish far away or in the net dish that bleeds retention excite infection, thereby prevent in stifled device and trachea and/or the esophagus place formation source of infection of closing.
3. remove panel surface spike projection far away, reduce the damage of esophagus offside and wearing and tearing.
4. as plugging device, effectively prevent that food and secretions from entering trachea.
The accompanying drawing explanation
The stifled structural representation that closes device of the tracheo esophageal fistula that Fig. 1 is this utility model embodiment 1;
Fig. 2 is the stifled structural representations that close device of this utility model embodiment 2 tracheo esophageal fistulas.
The stifled profile that closes device of the tracheo esophageal fistula that Fig. 3 is this utility model embodiment 1;
The stifled profile that closes device of the tracheo esophageal fistula that Fig. 4 is this utility model embodiment 2.
Wherein, 1 is nearly dish, and 2 is dish far away, and 3 is primary nodal point, and 4 is secondary nodal point, and 5 is the middle column structure, and 6 is silica gel thin film, and 7 is union joint, and 8 is the choked flow film.
The specific embodiment
Further describe the present invention below in conjunction with the drawings and specific embodiments.
A kind of tracheo esophageal fistula is stifled closes device and is made by memory material, comprises two cancellated disks that separate, and by middle column structure 5, is connected, the diameter of middle column structure 5 is 4mm, and length is 4mm, and far coiling 2 diameter is 18mm, the diameter of nearly dish 1 is 14mm, and edge is indent slightly.On described dish far away 2, with one deck silica gel thin film 6, described silica gel thin film 6 roots with, dish 2(esophagus side discs far away) upper lower limb joins with low-angle and esophagus, form streamlined structure, make food group glide and reduce resistance smoothly, reduce thread or strip food and hang on the stifled device that closes.The inner choked flow film 8 of filling of network structure, better prevent that esophageal contents from entering trachea, and choked flow film 8 is affixed with dish 2 far away, middle seamless.The outer face of dish 2 far away and interior along bringing together in the face mediad and primary nodal point 3, the recessed tubular waist of described primary nodal point inside, be bolt structure, closely coils in 1 outer face mediad and bring together in secondary nodal point 4, described secondary nodal point is bolt structure, and secondary nodal point 4 is connected with union joint 7.The netted wire rod that forms each dish and waist has shape memory, makes them can collapse in conduit and distortion during carrying, but the shape of recovering and keeping it to want after carrying.
Using method:
S1. close device and be connected with carrier described tracheo esophageal fistula is stifled by union joint;
S2. will be connected with the stifled carrier that closes device of described tracheo esophageal fistula is placed in the deflection delivery conduit with open channel;
S3. selected conduit is delivered in trachea, and by described conduit via prepositioned by the seal wire of fistula mouth, be delivered to described fistula mouth;
S4. make described conduit advance by the fistula road;
S5. the stifled esophagus side of closing the dish far away 2 Lou roads of device of described tracheo esophageal fistula is launched;
S6. described conduit is progressively withdrawn from, make the stifled trachea side of closing the nearly dish 1 Lou road of device of described tracheo esophageal fistula launch, and make the stifled tubular waist 5 that closes device of described tracheo esophageal fistula launch in described fistula road, thus make dish far away fasten the tissue of esophagus, nearly dish fastens the tissue of tracheal wall;
S7. remove the stifled annexation of closing device of carrier and described tracheo esophageal fistula, and described conduit is withdrawn from from described trachea.
A kind of tracheo esophageal fistula is stifled closes device and is made by memory material, comprises two cancellated disks that separate, and by middle tubular waist 5, is connected, the diameter of tubular waist 5 is 15mm, and length is 4mm, and far coiling 2 diameter is 29mm, the diameter of nearly dish 1 is 25mm, and edge is slightly outer recessed.On described dish far away 2, with one deck silica gel thin film 6, described silica gel thin film 6 roots with, dish 2(esophagus side discs far away) upper lower limb joins with low-angle and esophagus, form streamlined structure, make food group glide and reduce resistance smoothly, reduce thread or strip food and hang on the stifled device that closes.The inner choked flow film 8 of filling of network structure, better prevent that esophageal contents from entering trachea, and choked flow film 8 is affixed with dish 2 far away, middle seamless.
The outer face of dish 2 far away and interior along bringing together in the face mediad and primary nodal point 3, the recessed tubular waist of described primary nodal point inside, be bolt structure, closely coils 1 outer face mediad and bring together outward in secondary nodal point 4, described secondary nodal point is bolt structure, and secondary nodal point 4 is connected with union joint 7.The netted wire rod that forms each dish and waist has shape memory, makes them can collapse in conduit and distortion during carrying, but the shape of recovering and keeping it to want after carrying.
Claims (10)
1. a ganoid tracheo esophageal fistula is blocked up and is closed device, it is characterized in that, comprises nearly dish and dish far away and is connected nearly dish and the middle column structure of dish far away, and described nearly dish and far away coiling are the mesh-covered tray shelf structure that memory material forms; Described mesh-covered tray shelf structure comprises respectively outer face, choked flow film and interior along face, and the two ends of described middle column structure connect respectively the interior along face of nearly dish and dish far away; The outer bread of described dish far away is wrapped with membrane material.
2. device according to claim 1, is characterized in that, when the diameter of middle column structure is less than or equal to 10mm, the edge of described dish far away and/or nearly dish is indent and distributes.
3. device according to claim 1, is characterized in that, when the diameter of middle column structure is greater than 10mm, the edge of described dish far away and/or nearly dish is outer recessed distribution.
4. device according to claim 1, is characterized in that, the memory material of described dish far away is brought together in primary nodal point; The memory material of the outer face of described nearly dish is brought together in secondary nodal point, and primary nodal point is arranged in described middle column structure.
5. device according to claim 4, is characterized in that, described primary nodal point and secondary nodal point are bolt structure.
6. device according to claim 1, is characterized in that, the diameter of described dish far away is longer than the diameter of nearly dish, and the diameter of described nearly dish is longer than the diameter of middle column structure.
7. device according to claim 1, is characterized in that, described middle column diameter of movement is 5～30mm, and the length of described middle column structure is 4～15mm.
8. device according to claim 1, it is characterized in that, described memory material is selected from bio-compatibility shape memory Nitinol, bioresorbable polymers, shape-memory polymer, biocompatible metal, biology and can absorbs any one in metal again and make.
9. device according to claim 1, is characterized in that, described choked flow film is by promoting tissue growth and/or make as the flexible biocompatible material of sealant.
10. device according to claim 1, it is characterized in that, by polyester, polytetrafluoroethylene, ePTFE, polyurethane, metal material, polyvinyl alcohol, extracellular matrix ECM, synthesising biological, any one makes described choked flow film in absorbing polymer material, collagen again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320234523.3U CN203379158U (en) | 2013-05-03 | 2013-05-03 | Smooth-surfaced plugging device for esophagotracheal fistula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320234523.3U CN203379158U (en) | 2013-05-03 | 2013-05-03 | Smooth-surfaced plugging device for esophagotracheal fistula |
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| CN203379158U true CN203379158U (en) | 2014-01-08 |
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| CN201320234523.3U Expired - Fee Related CN203379158U (en) | 2013-05-03 | 2013-05-03 | Smooth-surfaced plugging device for esophagotracheal fistula |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510788A (en) * | 2016-12-12 | 2017-03-22 | 上海心玮医疗科技有限公司 | Left atrial appendage occlusion device |
| CN109908409A (en) * | 2019-04-10 | 2019-06-21 | 深圳市美好创亿医疗科技有限公司 | Silicon stent preparation method and silicon stent |
-
2013
- 2013-05-03 CN CN201320234523.3U patent/CN203379158U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510788A (en) * | 2016-12-12 | 2017-03-22 | 上海心玮医疗科技有限公司 | Left atrial appendage occlusion device |
| CN109908409A (en) * | 2019-04-10 | 2019-06-21 | 深圳市美好创亿医疗科技有限公司 | Silicon stent preparation method and silicon stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20190503 |
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| CF01 | Termination of patent right due to non-payment of annual fee |