CN211355674U - Esophagus-trachea fistula plugging support implanting device - Google Patents
Esophagus-trachea fistula plugging support implanting device Download PDFInfo
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- CN211355674U CN211355674U CN201920275497.6U CN201920275497U CN211355674U CN 211355674 U CN211355674 U CN 211355674U CN 201920275497 U CN201920275497 U CN 201920275497U CN 211355674 U CN211355674 U CN 211355674U
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Abstract
An esophagus and trachea fistula plugging bracket introducer is characterized by comprising: back handle, back push rod and front handle, back push rod and back handle fixed connection, back push rod runs through in the front handle, and the distal end of back push rod passes through the preceding push rod of in-connection hose connection, and the distal end of preceding push rod is connected with the preceding head that pushes away of mushroom type, and preceding push rod overcoat is equipped with flexible pipe, and the rear push rod locking knob is passed through threaded connection to the front handle near-end, and rear push rod locking knob distal end is equipped with the toper plug, toper plug and the inside toper inner wall contact of front handle.
Description
Technical Field
The utility model relates to a minimally invasive technical field specifically is an esophagus trachea fistula shutoff support and implantation device thereof.
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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an esophagus trachea fistula shutoff support and implantation device thereof to solve a great deal of defects 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 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.
The middle support 3 comprises a middle support framework 31 and a middle support film 30, two ends of the middle support framework 31 are respectively connected with the umbrella-shaped support 1 and the mushroom-shaped support 2 into a whole, and the middle support film 30 is arranged on the surface of the middle support framework 31.
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 composed of a metal wire structure, and the metal wire is made of 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.
An esophagus and trachea fistula plugging bracket introducer is characterized by comprising: the rear handle 8, the rear push rod 9 and the front handle 115, the rear push rod 9 is fixedly connected with the rear handle 8, the rear push rod 9 penetrates through the front handle 115, the far end of the rear push rod 9 is connected with the front push rod 92 through the inner connecting hose 91, the far end of the front push rod 92 is connected with the mushroom-shaped front push head 93, the flexible catheter 94 is sleeved outside the front push rod 92, the near end of the front handle 115 is connected with the rear push rod locking knob 110 through threads, the far end of the rear push rod locking knob 110 is provided with the conical rubber plug 113, and the conical rubber plug 113 is in contact with the conical inner wall 111 inside the front handle 115.
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 tube 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 sleeve hose connecting tube 118 is arranged at the far end of the front handle front end cover 117; the flexible conduit 94 is connected to the outer sleeve hose connecting pipe 118; the conical rubber plug 113 is provided with a through hole 1131 for the rear push rod 9 to penetrate through, the conical rubber plug 113 is provided with a conical surface 1132 contacting with the conical inner wall 111, and the conical rubber plug 113 is provided with a cross groove 1133.
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
As shown in fig. 1 to 4, an 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 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.
The middle support 3 comprises a middle support framework 31 and a middle support film 30, two ends of the middle support framework 31 are respectively connected with the umbrella-shaped support 1 and the mushroom-shaped support 2 into a whole, and the middle support film 30 is arranged on the surface of the middle support framework 31.
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 composed of a metal wire structure, and the metal wire is made of 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 combination of 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 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 has a different weaving structure and form from those of the 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 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 an esophagus trachea fistula shutoff support implantation device, 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 runs through in preceding handle 115, the distal end of back push rod 9 is through interior joint hose 91 connection preceding push rod 92, the distal end of preceding push rod 92 is connected with the preceding pushing head 93 of mushroom type, preceding push rod 92 overcoat is equipped with flexible pipe 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 contacts with the inside toper inner wall 111 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 plastic through a mold. The inner connection 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 tube 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 sleeve hose connecting tube 118 is arranged at the far end of the front handle front end cover 117; the flexible conduit 94 is connected to the outer sleeve hose connecting pipe 118; 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 contacting 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, the flexible catheter 94 provided with the esophageal-tracheal fistula blocking bracket is placed into the fistula orifice through a gastroscope forceps channel;
s3, as shown in fig. 13, pushing the rear handle 8 to the far end, and then pushing the mushroom-shaped stent 2 out of the flexible catheter 94 through the front pushing head 93, releasing the mushroom-shaped stent 2 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 side of the esophagus;
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 also 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, wherein 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 (3)
1. An esophagus and trachea fistula plugging bracket introducer is characterized by comprising: rear handle (8), back push rod (9) and preceding handle (115), back push rod (9) and rear 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 pipe (94), threaded connection back push rod locking knob (110) is passed through to preceding handle (115) near-end, 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).
2. The esophago-tracheal fistula blocking stent introducer of claim 1, wherein: the rear handle (8) near-end is equipped with rear handle rear end cap (80), and rear handle (8) distal end is connected with rear handle front end housing (81), and rear push rod (9) are through rear push rod fixing base (90) and rear handle (8) fixed connection.
3. The esophago-tracheal fistula blocking stent introducer of claim 1, wherein: 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 end cover (117) of the front handle through a connecting sleeve (116), and a sleeve hose connecting pipe (118) is arranged at the far end of the front end cover (117) of the front handle; the outer sleeve hose connecting pipe (118) is connected with a flexible conduit (94); the conical rubber plug (113) is provided with a through hole (1131) for the rear push rod (9) to penetrate through, the conical rubber plug (113) is provided with a conical surface (1132) contacted with the conical inner wall (111), and the conical rubber plug (113) is provided with a cross groove (1133).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018218029224 | 2018-11-02 | ||
| CN201821802922 | 2018-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211355674U true CN211355674U (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920275497.6U Active CN211355674U (en) | 2018-11-02 | 2019-03-05 | Esophagus-trachea fistula plugging support implanting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211355674U (en) |
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2019
- 2019-03-05 CN CN201920275497.6U patent/CN211355674U/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 insertion device for sealing esophagotracheal fistula Granted publication date: 20200828 License type: Exclusive License Record date: 20230321 |
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| EE01 | Entry into force of recordation of patent licensing contract |