CN210472202U - Esophagus-trachea fistula plugging support - Google Patents
Esophagus-trachea fistula plugging support Download PDFInfo
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- CN210472202U CN210472202U CN201920276599.XU CN201920276599U CN210472202U CN 210472202 U CN210472202 U CN 210472202U CN 201920276599 U CN201920276599 U CN 201920276599U CN 210472202 U CN210472202 U CN 210472202U
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Abstract
An esophageal-tracheal fistula plugging support is characterized by comprising an umbrella-shaped support (1), a mushroom-shaped support (2) and a middle support (3), wherein the umbrella-shaped support (1) and the mushroom-shaped support (2) are connected into a whole through the middle support (3), and the outer surfaces of the umbrella-shaped support (1), the mushroom-shaped support (2) and the middle support (3) are all provided with a film; the middle support (3) is of a tubular structure, two ends of the middle support are sealed through the film covering, the umbrella-shaped support (1) is unfolded into an umbrella shape, and the mushroom-shaped support (2) is unfolded into a mushroom umbrella shape. The utility model discloses because the far and near both ends of esophagus trachea fistula shutoff support are individual layer structure, compare with blood vessel occluder disc structure, weight is lighter relatively, and tissue necrosis risk reduces around the fistula, and the esophagus end is bigger than the trachea end in addition, and the occluder falls into the trachea risk and further reduces.
Description
Technical Field
The utility model relates to a minimally invasive technical field specifically is an esophagus trachea fistula shutoff support.
Background
In 2006, Paulo RS et al reported that the first atrial septal occluder was used to occlude a 5mm sized esophago-tracheal fistula, which was discharged 5 days after surgery. The trachea is blocked by the catheter, the wound is small, the operation is simple and convenient, and the effect is obvious. Umbrella-type devices and other similar mechanical occlusion devices, which were subsequently extensively developed by atrial septal defects, were used to occlude esophago-tracheal fistulas, but still suffer from the following disadvantages:
(1) the near end and the far end of the plugging device are provided with end sockets or are concave inwards, once a patient coughs and the like, the plugging device is pear-shaped, surrounding tissues are easy to be damaged, and sudden death caused by heavy bleeding and the like is caused.
(2) The occluder is susceptible to corrosion, and secondly the occluder, as a foreign body, can cause inflammatory reactions, which are not resisted by common occlusion devices.
(3) No recovery device is provided, once the device is placed in the body, the device cannot be taken out through medical conservative treatment.
(4) Generally, the plugging device is placed in through the trachea, the rescue channel is affected, and the plugging device cannot be placed under direct vision of a doctor at any time, so that certain risks exist.
(5) The treatment mode of stretching the periphery of the esophagus by adopting the traditional bracket seriously influences the daily life of a patient, has long pain time and influences the life quality of the patient.
(6) The plugging device is heavy in weight, and the plugging device presses surrounding tissues to cause ischemic necrosis and even fall off, so that an air passage is blocked to die.
Disclosure of Invention
An object of the utility model is to provide an esophagus trachea fistula shutoff support to solve a great deal of defect in the above-mentioned background art. The defect that the existing esophageal-tracheal fistula plugging device for plugging has harm to surrounding tissues is overcome, the device can be recycled, the safety of the device is improved, the life treatment of a patient is improved, and a novel safe and effective esophageal-tracheal fistula treatment mode is provided.
In order to achieve the above object, the utility model provides a following technical scheme:
an esophageal-tracheal fistula plugging support is characterized by comprising an umbrella-shaped support (1), a mushroom-shaped support (2) and a middle support (3), wherein the umbrella-shaped support (1) and the mushroom-shaped support (2) are connected into a whole through the middle support (3), and the outer surfaces of the umbrella-shaped support (1), the mushroom-shaped support (2) and the middle support (3) are all provided with a film; the middle support (3) is of a tubular structure, two ends of the middle support are sealed through the film covering, the umbrella-shaped support (1) is unfolded into an umbrella shape, and the mushroom-shaped support (2) is unfolded into a mushroom umbrella shape.
The umbrella-shaped stent (1) comprises an umbrella-shaped stent framework (101) and an umbrella-shaped stent coating film (100), wherein the umbrella-shaped stent framework (101) is of a dispersed structure or a woven structure, and the umbrella-shaped stent coating film (100) covers the surface of the umbrella-shaped stent framework (101).
Mushroom form support (2) are including mushroom form support radial skeleton (21) and mushroom form support tectorial membrane (20), and mushroom form support tectorial membrane (20) set up on mushroom form support radial skeleton (21) surface, and mushroom form support radial skeleton (21) are including mushroom form support longitudinal frame (23), mushroom form support near-end skeleton (24) and mushroom form support distal end skeleton (25).
Middle support (3) are including middle support skeleton (31) and middle support tectorial membrane (30), and the both ends of middle support skeleton (31) are connected as an organic whole with umbelliform support (1) and mushroom form support (2) respectively, and middle support skeleton (31) surface is equipped with middle support tectorial membrane (30).
One end of the middle bracket (3) is provided with a esophagus end plugging coating (4), and the other end of the middle bracket (3) is provided with a trachea end plugging coating (5).
The umbrella-shaped bracket (1) is formed by a metal wire structure, and the material of the metal wire is formed by any one or more of biocompatible nickel-titanium alloy, bioresorbable polymer, shape memory polymer, resorbable metal and biocompatible metal;
the mushroom-shaped bracket (2) is formed by a metal wire structure, and the material of the metal wire is formed by any one or more of biocompatible nickel-titanium alloy, bioresorbable polymer, shape memory polymer, resorbable metal and biocompatible metal;
the middle bracket (3) is formed by a metal wire structure, and the material of the metal wire is formed by any one or more of biocompatible nickel-titanium alloy, bioresorbable polymer, shape memory polymer, resorbable metal and biocompatible metal; the outer surface of the metal wire is provided with an anti-corrosion coating, the anti-corrosion coating is composed of silicone, and the antibacterial coating is composed of cationic steroid containing organic silicon, minocycline, rifampin, gentamicin, vancomycin or hydrophobic materials or a combination thereof.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses because the far and near both ends of esophagus trachea fistula shutoff support are individual layer structure, compare with blood vessel occluder disc structure, weight is lighter relatively, and tissue necrosis risk reduces around the fistula, and the esophagus end is bigger than the trachea end in addition, and the occluder falls into the trachea risk and further reduces. The bracket has no end enclosure, and can not touch peripheral tissues even if the occluder deforms to be pear-shaped, and the occluder is released under the direct vision of the gastroscope, so that the operation of a doctor is more reliable. The near end of the bracket is provided with a recovery wire, so that the bracket can be taken out by medical conservative treatment at any time, and even if the bracket falls into the trachea, the bracket can be taken out by using foreign body forceps. The bracket replaces the traditional treatment mode of supporting the periphery of the esophagus to open, does not press the esophagus, relieves the pain and improves the life quality of patients. The weight of the plugging device is lighter than that of a plugging device, the surrounding tissues are less stressed, and the risk of ischemic necrosis of the surrounding tissues is low.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the bracket of the present invention;
fig. 2 is a side view of embodiment 1 of the inventive stent;
fig. 3 is one of the schematic perspective views of embodiment 1 of the bracket of the present invention;
fig. 4 is one of the schematic perspective views of embodiment 1 of the bracket of the present invention;
fig. 5 is a schematic structural view of embodiment 2 of the bracket of the present invention;
fig. 6 is a schematic perspective view of embodiment 2 of the bracket of the present invention;
FIG. 7 is a schematic cross-sectional view of the stent of the present invention in an introducer;
fig. 8 is a schematic cross-sectional view of the stent of the present invention in a partially deployed state in the introducer.
Fig. 9a is a schematic cross-sectional view of an insert according to the present invention.
Fig. 9b is a second schematic cross-sectional view of the insert of the present invention.
Fig. 10 is an exploded view of the insert of the present invention.
Fig. 11 is a schematic view of the overall assembly structure of the insert according to the present invention.
Fig. 12 is a schematic view of one of the disassembly steps of the stent of the present invention inserted into an esophageal-tracheal fistula using an inserter.
Fig. 13 is a schematic view of a second disassembling step of the stent of the present invention inserted into the esophago-tracheal fistula by using the inserter.
Fig. 14 is a third exploded view of the stent of the present invention inserted into the esophageal-tracheal fistula by the inserter.
Fig. 15 is one of the schematic structural diagrams of the conical plug of the present invention.
Fig. 16 is a second schematic structural view of the conical plug of the present invention.
Fig. 17 is a third schematic structural view of the conical rubber plug of the present invention.
Fig. 18 is a fourth schematic structural view of the conical rubber plug of the present invention.
Fig. 19 is a schematic structural view of another esophageal-tracheal fistula plugging bracket of the present invention.
Fig. 20 is a schematic structural view of the first target and the second target of the present invention.
In the figure: 1. an umbrella-shaped bracket; 100. covering a film on the umbrella-shaped stent; 101. an umbrella-shaped support framework; 2. a mushroom-shaped scaffold; 20. covering a film on the mushroom-shaped stent; 21. a mushroom-shaped stent radial skeleton; 23. a mushroom-shaped support longitudinal skeleton; 24. a mushroom-shaped stent proximal end skeleton; 25. a mushroom-shaped stent distal end skeleton; 3. a middle support; 30. laminating a middle stent; 31. a middle support framework; 4. the esophagus end is sealed and covered with a film; 5. the end of the trachea is sealed and covered with a film; 7. recovering the wire; 8. a rear handle; 80. a rear handle rear end cap; 81. a rear handle front end cap; 9. a rear push rod; 90. a rear push rod fixing seat; 91. the inner connection hose; 92. a front push rod; 93. a front pushing head; 94. a flexible conduit; 110. the rear push rod locks the knob; 111. a tapered inner wall; 112. a luer fitting tube; 113. a conical rubber plug; 114. an inner cavity; 115. a front handle; 116. a connecting sleeve; 117. a front handle front end cover; 118. the outer sleeve hose connecting pipe; 1131. a through hole; 1132. a conical surface; 1133. a cross groove; 1A, a mirror image umbrella-shaped bracket; 119. a first target; 120. a second target.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The term "proximal" refers to the end closer to the operator and "distal" refers to the end farther from the operator.
As in fig. 1 to 20:
example 1
Referring to fig. 1 to 4, the esophageal-tracheal fistula plugging stent is characterized by comprising an umbrella-shaped stent (1), a mushroom-shaped stent (2) and a middle stent (3), wherein the umbrella-shaped stent (1) and the mushroom-shaped stent (2) are connected into a whole through the middle stent (3), and the outer surfaces of the umbrella-shaped stent (1), the mushroom-shaped stent (2) and the middle stent (3) are all provided with a film; the middle support (3) is of a tubular structure, two ends of the middle support are sealed through the film covering, the umbrella-shaped support (1) is unfolded into an umbrella shape, and the mushroom-shaped support (2) is unfolded into a mushroom umbrella shape.
The umbrella-shaped stent (1) comprises an umbrella-shaped stent framework (101) and an umbrella-shaped stent coating film (100), wherein the umbrella-shaped stent framework (101) is of a dispersed structure or a woven structure, and the umbrella-shaped stent coating film (100) covers the surface of the umbrella-shaped stent framework (101).
Mushroom form support (2) are including mushroom form support radial skeleton (21) and mushroom form support tectorial membrane (20), and mushroom form support tectorial membrane (20) set up on mushroom form support radial skeleton (21) surface, and mushroom form support radial skeleton (21) are including mushroom form support longitudinal frame (23), mushroom form support near-end skeleton (24) and mushroom form support distal end skeleton (25).
Middle support (3) are including middle support skeleton (31) and middle support tectorial membrane (30), and the both ends of middle support skeleton (31) are connected as an organic whole with umbelliform support (1) and mushroom form support (2) respectively, and middle support skeleton (31) surface is equipped with middle support tectorial membrane (30).
One end of the middle bracket (3) is provided with a esophagus end plugging coating (4), and the other end of the middle bracket (3) is provided with a trachea end plugging coating (5).
The umbrella-shaped bracket (1) is formed by a metal wire structure, and the material of the metal wire is formed by any one or more of biocompatible nickel-titanium alloy, bioresorbable polymer, shape memory polymer, resorbable metal and biocompatible metal;
the mushroom-shaped bracket (2) is formed by a metal wire structure, and the material of the metal wire is formed by any one or more of biocompatible nickel-titanium alloy, bioresorbable polymer, shape memory polymer, resorbable metal and biocompatible metal;
the middle bracket (3) is formed by a metal wire structure, and the material of the metal wire is formed by any one or more of biocompatible nickel-titanium alloy, bioresorbable polymer, shape memory polymer, resorbable metal and biocompatible metal.
The outer surface of the metal wire is provided with an anti-corrosion coating, the anti-corrosion coating is composed of silicone, and the antibacterial coating is composed of cationic steroid containing organic silicon, minocycline, rifampin, gentamicin, vancomycin or hydrophobic materials or a combination thereof.
The umbrella-shaped bracket (1) is connected with a recovery wire (7), and the recovery wire (7) can be a metal wire made of the materials or can be a non-metal material with good biocompatibility.
Example 2
As shown in fig. 5 and 6, the esophageal-tracheal fistula plugging stent is characterized by comprising an umbrella-shaped stent (1), a mushroom-shaped stent (2) and a middle stent (3), wherein the metal wire is of a different woven structure and form from those of embodiment 1, the umbrella-shaped stent (1) and the mushroom-shaped stent (2) are connected into a whole through the middle stent (3), and the outer surfaces of the umbrella-shaped stent (1), the mushroom-shaped stent (2) and the middle stent (3) are all provided with a film; the middle support (3) is of a tubular structure, two ends of the middle support are sealed through the film covering, the umbrella-shaped support (1) is unfolded into an umbrella shape, and the mushroom-shaped support (2) is unfolded into a mushroom umbrella shape.
Example 3
FIG. 7 is a schematic cross-sectional view of the stent in the introducer of the present invention; the stent is compressed and folded in its entirety in the tubular structure of the introducer. Delivered to a target internal fistula area.
Fig. 8 is a schematic cross-sectional view of the stent of the present invention in a partially deployed state in the inserter. One end of the bracket, which is positioned at the alimentary canal side or the trachea side, is sent out by the inserter, and is unfolded under the self elasticity and the memory tension, and then the other end of the bracket is sent out and released to be unfolded in the retracting process of the inserter, so that the internal fistula plugging is completed.
Example 4
Fig. 9a is a schematic cross-sectional view of an insert according to the present invention. Fig. 9b is a second schematic cross-sectional view of the insert of the present invention. Fig. 10 is an exploded view of the insert of the present invention. Fig. 11 is a schematic view of the overall assembly structure of the insert according to the present invention.
The utility model provides a device is put into to esophagus trachea fistula shutoff support, back handle (8), back push rod (9) and preceding handle (115), back push rod (9) and back handle (8) fixed connection, back push rod (9) run through in preceding handle (115), the distal end of back push rod (9) is through interior coupling hose (91) connect preceding push rod (92), the distal end of preceding push rod (92) is connected with preceding pushing head (93) of mushroom type, preceding push rod (92) overcoat is equipped with flexible conduit (94), preceding handle (115) near-end is through threaded connection back push rod locking knob (110), back push rod locking knob (110) distal end is equipped with toper plug (113), toper plug (113) and the inside toper inner wall (111) contact of preceding handle (115).
The rear push rod (9) is a metal rod, and the front push head (93), the rear handle (8) and the front handle (115) can be made of plastics through a mold. The inner connecting hose (91) and the flexible conduit (94) are flexible hoses.
A rear handle rear end cover (80) is arranged at the near end of the rear handle (8), a rear handle front end cover (81) is connected to the far end of the rear handle (8), and the rear push rod (9) is fixedly connected with the rear handle (8) through a rear push rod fixing seat (90);
a luer connector pipe (112) communicated with an inner cavity (114) of the front handle (115) is arranged on the front handle (115), the far end of the front handle (115) is connected with a front handle front end cover (117) through a connecting sleeve (116), and a flexible sleeve hose connecting pipe (118) is arranged at the far end of the front handle front end cover (117); the outer sleeve hose connecting pipe (118) is connected with a flexible conduit (94); the conical rubber plug (113) is made of rubber and has elasticity, a through hole (1131) for the rear push rod (9) to penetrate through is formed in the conical rubber plug (113), the conical rubber plug (113) is provided with a conical surface (1132) which is in contact with the conical inner wall (111), and a cross groove (1133) is formed in the conical rubber plug (113).
The luer connector tube (112) may be connected to a syringe or the like, and the lumen (114) may be flushed or aspirated.
Example 5
An esophageal-tracheal fistula plugging bracket implanting method is characterized by comprising the following steps:
s1, positioning the specific position of the fistula under the gastroscope;
s2, as shown in figure 12, under the monitoring of a gastroscope, a flexible catheter (94) provided with an esophageal-tracheal fistula blocking bracket is placed into a fistula orifice through a gastroscope forceps channel;
s3, as shown in fig. 13, the rear handle (8) is pushed to the far end, and then the mushroom-shaped bracket (2) of the esophageal-tracheal fistula plugging bracket is pushed out of the flexible catheter (94) through the front push head (93), and the mushroom-shaped bracket (2) is released to the trachea side;
s4, rotating the rear push rod locking knob (110), axially extruding the conical rubber plug (113), and enabling the conical rubber plug (113) to tightly hold the rear push rod (9) under the action of the conical inner wall (111) so that the rear push rod (9) is fixed with the front handle (115);
s5, as shown in fig. 14, the front handle (115) is continuously moved towards the near end, so that the mushroom-shaped bracket (2) is blocked by the inner wall of the trachea, and the umbrella-shaped bracket (1) of the esophageal-tracheal fistula plugging bracket is pulled out and released to the esophageal side;
s6, after confirming that the esophageal-tracheal fistula blocking stent is at the ideal position, withdrawing the flexible catheter (94), and observing by gastroscope again without abnormal withdrawal of the scope.
Example 6
Fig. 19 is a schematic structural view of another esophageal-tracheal fistula plugging bracket of the present invention.
The mushroom-shaped bracket (2) can be replaced by a mirror image umbrella-shaped bracket (1A), and the two mirror images are consistent.
Example 7
Fig. 20 is a schematic structural view of the first target and the second target of the present invention. The rear push rod (9) is further provided with a first target (119) and a second target (120), the first target (119) and the second target (120) are respectively a yellow scale mark and a red scale mark and respectively represent that the trachea side support starts to be released and the trachea side support finishes to be released.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An esophageal-tracheal fistula plugging support is characterized by comprising an umbrella-shaped support (1), a mushroom-shaped support (2) and a middle support (3), wherein the umbrella-shaped support (1) and the mushroom-shaped support (2) are connected into a whole through the middle support (3), and the outer surfaces of the umbrella-shaped support (1), the mushroom-shaped support (2) and the middle support (3) are all provided with a film; the middle support (3) is of a tubular structure, two ends of the middle support are sealed through the film covering, the umbrella-shaped support (1) is unfolded into an umbrella shape, and the mushroom-shaped support (2) is unfolded into a mushroom umbrella shape.
2. The esophago-tracheal fistula blocking stent of claim 1 wherein: the umbrella-shaped stent (1) comprises an umbrella-shaped stent framework (101) and an umbrella-shaped stent coating film (100), wherein the umbrella-shaped stent framework (101) is of a dispersed structure or a woven structure, and the umbrella-shaped stent coating film (100) covers the surface of the umbrella-shaped stent framework (101).
3. The esophago-tracheal fistula blocking stent of claim 1 wherein: mushroom form support (2) are including mushroom form support radial skeleton (21) and mushroom form support tectorial membrane (20), and mushroom form support tectorial membrane (20) set up on mushroom form support radial skeleton (21) surface, and mushroom form support radial skeleton (21) are including mushroom form support longitudinal frame (23), mushroom form support near-end skeleton (24) and mushroom form support distal end skeleton (25).
4. The esophago-tracheal fistula blocking stent of claim 1 wherein: middle support (3) are including middle support skeleton (31) and middle support tectorial membrane (30), and the both ends of middle support skeleton (31) are connected as an organic whole with umbelliform support (1) and mushroom form support (2) respectively, and middle support skeleton (31) surface is equipped with middle support tectorial membrane (30).
5. The esophago-tracheal fistula blocking stent of claim 1 wherein: one end of the middle bracket (3) is provided with a esophagus end plugging coating (4), and the other end of the middle bracket (3) is provided with a trachea end plugging coating (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018218019805 | 2018-11-02 | ||
| CN201821801980 | 2018-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210472202U true CN210472202U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920276599.XU Active CN210472202U (en) | 2018-11-02 | 2019-03-05 | Esophagus-trachea fistula plugging support |
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| Country | Link |
|---|---|
| CN (1) | CN210472202U (en) |
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2019
- 2019-03-05 CN CN201920276599.XU patent/CN210472202U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanwei Medical Technology Co.,Ltd. Assignor: JIANGSU PROVINCE Hospital Contract record no.: X2023990000328 Denomination of utility model: A stent for blocking esophagotracheal fistula Granted publication date: 20200508 License type: Exclusive License Record date: 20230321 |
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| EE01 | Entry into force of recordation of patent licensing contract |