CN207429131U - A kind of coronary artery fistula plugging device - Google Patents
A kind of coronary artery fistula plugging device Download PDFInfo
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- CN207429131U CN207429131U CN201621389229.XU CN201621389229U CN207429131U CN 207429131 U CN207429131 U CN 207429131U CN 201621389229 U CN201621389229 U CN 201621389229U CN 207429131 U CN207429131 U CN 207429131U
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- plugging device
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- artery fistula
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Abstract
The utility model discloses a kind of coronary artery fistula plugging devices, which is characterized in that including plugging device main body, plugging device main body is equipped with the polymer film for increasing resistance blood effect and accelerating endothelialization speed.The utility model can adaptive coronary artery fistula form, plugging effect is good, and fixed performance is good.The plugging device has the suitable coefficient of expansion, ensure closure completely and it is fixed under the premise of, support blood vessels that will not be excessive.The device of the utility model is in use, by selecting appropriate length, it can be ensured that it is located in fistula, prevents take up normal blood vessels and the volume of the chambers of the heart.Complication easy to operate in clinical operation and postoperative is less.
Description
Technical field
The utility model is related to a kind of coronary artery fistula plugging devices, belong to the field of medical instrument technology.
Background technology
Coronary artery fistula (coronary artery fistulae, CAF) is a kind of rarer congenital abnormality, main
Show as between main coronary artery or/and its branch and a certain chambers of the heart or big blood vessel there are abnormal traffic, by Krause in
It reports for the first time within 1865, accounts for congenital heart disease 0.27%-0.4%.Most coronary artery fistulas are due to fetus cardiovascular system
In growth course, myocardium vascular pool is not degenerated persistently there are caused congenital abnormality, and only a few is due to cardiotrauma, the heart
Caused by the acquired dispositions such as open-heart surgery, cardiac muscle biopsy, heart transplant, infectious endocarditis, percutaneous coronary intervention.It is more
Number coronary artery fistula drains into the right side and feels concerned about system, and minority drains into a left side and feels concerned about system.
Influence of the coronary artery fistula to haemodynamics depending on the position of fistula mouth, bore, abnormal coronary artery resistance
And its factors such as pressure gradient between the chambers of the heart, blood vessel.Since coronary artery is mainly to be perfused in ventricular diastole, at this time
The chambers of the heart that coronary artery pressure enters apparently higher than fistula, blood vessel, therefore the hemodynamics disturbance of coronary artery fistula is mainly due to coronal dynamic
Arteries and veins blood flow is caused by the related chambers of the heart, aberrant angiogenesis shunting.Coronary artery blood is shunted through fistula, and the blood flow in relation to coronary artery is made to subtract rapidly
It is few, especially in diastole, perfusion pressure can be caused to decline rapidly, influence local blood supply, cause so-called " stealing blood " existing
As causing myocardial ischemia.Of short duration myocardial ischemia can generate angina pectoris, continue serious myocardial ischemia and will appear from myocardial necrosis,
Prolonged and repeated myocardial ischemia can cause myocardiolysis and heart function to decline, and heart failure finally occur.
At present, the therapy of coronary artery fistula includes surgical operation therapy and interventional therapy.Surgical intervention is coronal
The method of fistula of artery mainly have directly tie, underwent coronary direct-view prosthetic and through the chambers of the heart repair fistula three kinds of methods of mouth, according to
Its idicatio is different, can be with flexible Application in operation.Surgical operation merges other hearts for needing operative treatment suitable for CAF
Disease and multiple fistula and the complicated CAF patient of dissection.Continuous monitoring ECG is needed to determine whether myocardial ischemia in art.
Preferably place esophagus ultrasound, except observation ventricular wall motion have it is without exception in addition to, also can determine that whether there is residual shunt.Operative treatment it is excellent
Point is good effect, and survival rate and sealing ratiod are all higher, but there is also the hairs of such as postoperative heart infarction and fistula complication such as logical again
It is raw.
Foreign literature report can about be treated more than 90% CAF by intervening mode, at the same curative effect and
Prognosis is all similar with surgical operation.The successful key of its technology be find fistula mouth, and according to Anatomic Types (fistula mouth size, form,
Origin, distribution and single-shot or multiple), traveling coronarius, whether there is relevant collatoral vessel, select suitable transport way and
Embolism materials, closure fistula mouth prevent myocardial ischemia and fistula mouth from omitting.At present on surgical operation therapy CAF and interventional treatment it
Between still lack stringent random Multicenter controlled study, but interventional treatment is with its economy, wound is small and good effect is made extensively
In clinic.
The content of the invention
The technical problems to be solved in the utility model is：Provide it is a kind of it is easy to operate, possess and block, fix completely
Coronary artery fistula plugging device solves stringent random on still lacking between surgical operation therapy CAF and interventional treatment at present
The problem of Multicenter controlled study.
In order to solve the above-mentioned technical problem, there is provided a kind of coronary artery fistulas to block for the technical solution of the utility model
Device, which is characterized in that including plugging device main body, plugging device main body, which is equipped with, to be increased resistance blood effect and accelerate the poly- of endothelialization speed
Compound film.
Preferably, the plugging device main body is cellulose bodies, and polymer film is lining in the outside of cellulose bodies.
Preferably, the cellulose bodies possess the bio-compatible for being released to and not causing body rejection in human body
Property and ensure that it can be compressed to the coefficient of expansion in conduit and passing through coronary artery fistula.
Preferably, plugging device developing mark of position and form in human body can preferably be observed by further including.
Preferably, the developing mark is made of the platinum metal material of X-ray opaque.
Preferably, the plugging device main body is that the nitinol alloy wire for preventing blood flow is realized by high metal coverage rate
The column being woven into, polymer film are sewn in inside the column that nitinol alloy wire is woven into.
Preferably, the polymer film is polypropylene screen or polyethylene film or polyethylene terephthalate film.
Preferably, the plugging device main body is spring ring, and polyester fiber or dacron membrane are sewed on spring ring.
Compared with prior art, the utility model has the advantages that：
The utility model can adaptive coronary artery fistula form, plugging effect is good, and fixed performance is good.The closure utensil
Have the suitable coefficient of expansion, ensure closure completely and it is fixed under the premise of, support blood vessels that will not be excessive.The utility model
Device in use, by selecting appropriate length, it can be ensured that it is located in fistula, prevents take up normal blood vessels and the volume of the chambers of the heart.
Complication easy to operate in clinical operation and postoperative is less.
Description of the drawings
Fig. 1 is the schematic diagram of column plugging device；
Fig. 2 is the schematic diagram of bending plugging device；
Fig. 3 is the schematic diagram of taper plugging device；
Fig. 4 is a kind of schematic diagram of coronary artery fistula ductus arteriosus occluder coronary artery fistula；
Fig. 5 is the schematic diagram that a kind of coronary artery fistula ductus arteriosus occluder distorts coronary artery fistula；
Fig. 6 is the schematic diagram that a kind of coronary artery fistula ductus arteriosus occluder distorts coronary artery fistula；
Fig. 7 is a kind of schematic diagram of coronary artery fistula ductus arteriosus occluder coronary artery-chambers of the heart fistula；
Fig. 8 is a kind of schematic diagram of coronary artery fistula plugging device prepackage；
Fig. 9 is the schematic diagram of Nitinol braided plugging device；
Figure 10 is the schematic diagram of Nitinol braided ductus arteriosus occluder coronary artery fistula；
Figure 11 is the schematic diagram of spring round plugging device.
Specific embodiment
To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is coordinated to be described in detail below.
It is to be understood that these embodiments are merely to illustrate utility model rather than limitation the scope of the utility model.In addition
It is to be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Embodiment 1
The utility model is a kind of coronary artery fistula plugging device, can better adapt to various types of coronary artery fistulas, such as
Shown in Fig. 1-Fig. 3, plugging device main body is high molecular material in the utility model, can be cellulose bodies 1, also be wrapped in the utility model
Developing mark 2 is included, plugging device position and form in human body can preferably be observed by developing mark 2.Cellulose bodies 1 possess
Good biocompatibility is released to the rejection for not causing body in human body.The suitable coefficient of expansion, to ensure that it can be pressed
It is reduced in thinner conduit, and passes through smaller coronary artery fistula.Be lined with outside cellulose bodies 1 polypropylene screen or polyethylene film or
Polyethylene terephthalate film hinders blood effect to increase it, accelerates endothelialization speed.Developing mark 2 is platinum metal material
It is made, X-ray opaque, doctor can judge the location of plugging device by mark point, and determine whether in optimal release conditions.
As Figure 4-Figure 6, for coronary-pulmonary fistule pipe 4 between coronary artery 3 and pulmonary artery 5, this practicality is new
The plugging device of type is compressed into first in conduit 8, by promoting push rod 7 or withdrawing the release of the realization plugging device of conduit 8, is such as schemed
Shown in 8.Plugging device possesses self-expanding performance, and after conduit 8 are released, cellulose bodies 1 are expanded into uncompressed preceding size, and are close to be preced with
The fistula of shape artery-pulmonary artery fistula 4, plugging device will take into account closure and fixed effect after release, realize to coronary artery fistula
Treatment.
Form is more complicated sometimes for coronary artery fistula, such as distorted shape pathological change form, at this time by selecting suitable cellulose
Body, you can the closure applied to bending coronary artery fistula.Accordingly, it is believed that if conduit can be by fistula, the coronary artery
Fistula plugging device is applicable in.
Using the utility model plugging device when, also answer preoperative observation fistula mouth size, form, origin, distribution and single-shot or
Traveling multiple, coronarius whether there is relevant collatoral vessel etc., and selects suitable plugging device specification according to actual conditions,
And the elements such as the coefficient of expansion of cellulose, bendability are carefully evaluated to blocking front and rear influence.
Embodiment 2
As shown in fig. 7, in the present embodiment, the utility model is applied to coronary artery-chambers of the heart fistula (atrium dextrum, right ventricle, left side
Atrium, left ventricle).The cellulose bodies 1 of the utility model are arranged between coronary artery 3 and the chambers of the heart 6.
Other are same as Example 1.
Embodiment 3
In the present embodiment, the applicable most aberrant angiogenesis passage of the utility model, such as patent ductus arteriosus.
Other are same as Example 1.
Embodiment 4
In the present embodiment, the cellulose bodies 1 in the utility model are the material with contacting blood expansion.When this kind of material is big
During contact area blood can automatic expansion, block coronary artery fistula, when use should avoid its premature contact blood.
The plugging device of the utility model expands after releasing conduit, with contacting blood, and is close to fistula, completely after release, envelope
Stifled device adapts to coronary artery fistula form, completes to block fistula.
Other are same as Example 1.
Embodiment 5
In the present embodiment, the plugging device main body in the utility model is the column 9 that nitinol alloy wire is woven into, and NiTi closes
The both sides up and down for the column 9 that spun gold is woven into are equipped with steel bushing 10.As shown in figure 9, entire plugging device uses thinner silk material,
Plugging device integrally bending performance is good, is suitable for coronary artery fistula form；Plugging device close weave is realized by high metal coverage rate
Prevent blood flow.To further improve resistance blood effect, can also be stitched with polymer film inside plugging device, such as polyester fiber film,
Polytetrafluoroethylene film, polypropylene screen etc..The plugging device of the utility model can well adapt to fistula form, and closure is good, such as scheme
Shown in 10.
Embodiment 6
In the present embodiment, the plugging device main body in the utility model is spring ring 11, and spring ring 11 is fixedly supported
At fistula, polyester fiber or dacron membrane are sewed on spring ring 11, to realize plugging effect, as shown in figure 11.
Claims (6)
1. a kind of coronary artery fistula plugging device, which is characterized in that including plugging device main body, plugging device main body, which is equipped with, increases resistance blood
Effect and the polymer film for accelerating endothelialization speed, the plugging device main body are cellulose bodies (1), and polymer film is lining in fiber
The outside of ferritic (1), the cellulose bodies (1) possess the biofacies for being released to and not causing body rejection in human body
Capacitive and ensure that it can be compressed to the coefficient of expansion in conduit and passing through coronary artery fistula.
2. a kind of coronary artery fistula plugging device as described in claim 1, which is characterized in that envelope can preferably be observed by further including
The stifled device developing mark of position and form (2) in human body.
3. a kind of coronary artery fistula plugging device as claimed in claim 2, which is characterized in that the developing mark (2) is not
The platinum metal material of saturating X-ray is made.
4. a kind of coronary artery fistula plugging device as described in claim 1, which is characterized in that the plugging device main body is dependence
High metal coverage rate realizes the column (9) that the nitinol alloy wire of blood flow is prevented to be woven into, and polymer film is sewn in NiTi conjunction
The column (9) that spun gold is woven into is internal.
5. a kind of coronary artery fistula plugging device as described in claim 1 or 4, which is characterized in that the polymer film is poly-
Propylene film or polyethylene film or polyethylene terephthalate film.
6. a kind of coronary artery fistula plugging device as described in claim 1, which is characterized in that the plugging device main body is spring
It encloses (11), spring ring is sewed with polyester fiber or dacron membrane on (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389229.XU CN207429131U (en) | 2016-12-16 | 2016-12-16 | A kind of coronary artery fistula plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389229.XU CN207429131U (en) | 2016-12-16 | 2016-12-16 | A kind of coronary artery fistula plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN207429131U true CN207429131U (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621389229.XU Active CN207429131U (en) | 2016-12-16 | 2016-12-16 | A kind of coronary artery fistula plugging device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464168A (en) * | 2018-12-17 | 2019-03-15 | 先健科技(深圳)有限公司 | Plugging device |
| CN109893193A (en) * | 2019-01-22 | 2019-06-18 | 中国医学科学院阜外医院 | The trunk bracket of blood can be hindered |
| CN110840508A (en) * | 2019-12-17 | 2020-02-28 | 上海加奇生物科技苏州有限公司 | Implant for treating arteriovenous pulmonary fistula |
| WO2021103982A1 (en) * | 2019-11-27 | 2021-06-03 | 张海军 | Degradable patch for treating aneurysm, and blood directing system |
| CN113616376A (en) * | 2021-07-29 | 2021-11-09 | 汕头大学医学院第一附属医院 | Coronary fistula covered stent and conveying system |
-
2016
- 2016-12-16 CN CN201621389229.XU patent/CN207429131U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464168A (en) * | 2018-12-17 | 2019-03-15 | 先健科技(深圳)有限公司 | Plugging device |
| CN109464168B (en) * | 2018-12-17 | 2020-09-29 | 先健科技(深圳)有限公司 | Plugging device |
| CN109893193A (en) * | 2019-01-22 | 2019-06-18 | 中国医学科学院阜外医院 | The trunk bracket of blood can be hindered |
| CN109893193B (en) * | 2019-01-22 | 2024-01-02 | 中国医学科学院阜外医院 | Trunk support capable of blocking blood |
| WO2021103982A1 (en) * | 2019-11-27 | 2021-06-03 | 张海军 | Degradable patch for treating aneurysm, and blood directing system |
| CN110840508A (en) * | 2019-12-17 | 2020-02-28 | 上海加奇生物科技苏州有限公司 | Implant for treating arteriovenous pulmonary fistula |
| CN113616376A (en) * | 2021-07-29 | 2021-11-09 | 汕头大学医学院第一附属医院 | Coronary fistula covered stent and conveying system |
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