CN104224246B - ASD (atrial septal defect) reserved-hole occluder - Google Patents
ASD (atrial septal defect) reserved-hole occluder Download PDFInfo
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- CN104224246B CN104224246B CN201410187151.2A CN201410187151A CN104224246B CN 104224246 B CN104224246 B CN 104224246B CN 201410187151 A CN201410187151 A CN 201410187151A CN 104224246 B CN104224246 B CN 104224246B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00606—Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00646—Type of implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention discloses an ASD (atrial septal defect) reserved-hole occluder comprising a left disc, a right disc, a cylindrical barrier portion and through hole penetrating the left disc, the right disc and a cylindrical. The left disc and the right disc are used for occluding an opening. The cylindrical barrier portion between the left disc and the right disc occludes the ASD. The diameter of the left disc is greater than that of the right disc. The diameter of the right disc is greater than that of the cylindrical barrier portion. The left disc, the right disc, the cylindrical barrier portion and the through hole are all made by braiding a plurality of memory alloy wires; the memory alloy wires penetrate the through hole to form a wall of the through hole and are wound into the left disc, the right disc and the cylindrical barrier portion; two ends of every memory alloy wire are both fixed to a same fixture used for restraining the memory alloy wires; the memory alloy wires are mutually staggered into an elastic mesh; a seal film is arranged in the elastic mesh. Branch flows of the aorta and pulmonary arteries are limited, volume overload and pressure conduction of pulmonary vessels are relieved, a release space is provided for high pressure of the right heart system, and patients with advanced pulmonary arterial hypertension are saved.
Description
Technical field
Patent of the present invention is related to technical field of medical instruments, and in particular to a kind of interatrial septum for treating congenital heart disease lacks
Damage stopper.
Background technology
Atrial septal defect (Atrial septal defect, ASD) is a kind of common congenital heart disease, is original room
There is exception in being spaced in embryo development procedure, cause hole to be left between left and right atrium.Atrial septal defect individually can occur,
With other kinds of cardiovascular malformation and can deposit, women is common, the ratio about 1 of men and women:3.Shunt as atrium level is present, can draw
Play corresponding abnormal hemodynamics.The child of most Transcatheter Closure of Secundum can nothing in addition to the respiratory tract infection such as easily catch a cold
Symptom, activity are also unrestricted, are typically just presented with out of breath, cardiopalmus, weak etc. to nonage.Most diseases after 40 years old
People's exacerbation of symptoms, and often there is pulmonary hypertension, arrhythmia and congestive heart failure, the former is dead major reason.In early days
ASD, surgical operation or the operation of minimally invasive transcatheter can radical curing of disease, can disease progression to there is severe pulmonary hypertension
During the stage, opportunity of operation will completely lose.Even if because now closing atrial septal defect, pulmonary hypertension will not also be reduced, very
There is cardiovascular malignant event to further up.Pulmonary hypertension can not be cured, and be called " cancers in cardiovascular diseasess ", one
After after diagnosing, median survival interval is only 2～3 years, and serious symptom person's prognosis is worse.Multicenter study explores targeting both at home and abroad
Drug therapy, can to a certain degree improve patients symptomatic, but the time limit of surviving is without change, in addition targeted drug somewhat expensive, (as ten thousand he
50,000 yuan of every month of dimension, 30,000 yuan of bosentan every month) life-time service unrealistic.
Congenital heart disease a large amount of left to right shunt Pulmonary Vasculars irreversible change, closing defect by force can cause right ventricular pressure
Nowhere discharge, right heart failure and sudden death occur, but letting alone the presence of defect can be such that the state of an illness further deteriorates again.
The content of the invention
For not enough present in background technology, it is an object of the invention to provide a kind of interatrial septum of Minimally Invasive Surgery lacks
Damage is boxed out stopper, merges the death time of severe pulmonary hypertension patient, reduction of patient clinical symptoms for postponing ASD.
To reach above-mentioned purpose, the atrial septal defect of present invention design is boxed out stopper, it is characterised in that：Lack including closure
Mouthful left disk and right disk, between left disk and right disk block atrial septal defect column blocking part, and through above-mentioned left disk,
The through hole of right disk and column blocking part；The diameter with diameter greater than the right disk of the left disk, the right disk with diameter greater than institute
State the diameter of column blocking part；The left disk, right disk, column blocking part and the through hole are worked out by many memory alloy wires
Formed；The memory alloy wire constitutes the hole wall of the through hole through the through hole, and coiling forms the left disk, right disk and institute
Column blocking part is stated, the two ends of the memory alloy wire are affixed to the same stationary fixture for constraining the memory alloy wire
On；The many memory alloy wires intermesh into elastic network(s), are provided with diaphragm seal in the elastic network(s).
Further, the stationary fixture includes coaxial with the through hole and hanging joint, and the side wall of the joint connects
It is connected to a few alloy connection strap；The two ends of the memory alloy wire are fixed on the alloy connection strap.
Further, diameter of the external diameter of the joint less than the through hole.
Yet further, the span of the external diameter of the joint is 1-3 millimeters.
Preferably, three alloy connection straps, the adjacent alloy connection strap are connected on the side wall of the joint
Between angle be 120 °；The two ends of the memory alloy wire are fixed on the alloy connection strap.
Further, a diameter of 3-6 millimeters of the through hole.
The invention has the beneficial effects as follows：Relative to existing stopper, invention increases a through hole, so not only limits
Most aortas-Pulmonic shunting is made, big defect has been become less defect, both limited the aortic blood of high pressure chest
Stream flows to pulmonary artery, mitigates pulmonary vascular volume overload and pressure is passed to；Pulmonary artery pressure can be prevented to raise suddenly again simultaneously
Cause serious consequence.Thus, when Pulmonic pressure exceedes the pressure of aorta, blood flow can pass through reserved aperture shunting
Decompression so that the space that the height of system is pressed with release is felt concerned about on the right side, saves late period patients with pulmonary hypertension.So, making first can without medicine
The whole latter stage ASD for rescuing merges the treatment of severe pulmonary hypertension and becomes possible to；The hanging joint of the right card of stopper can be conveniently
Connection conveying wirerope, safety control stopper release；Stopper central authorities box out, and solve
Arterial hypertension continues rising causes right heart failure this complication；Limit most of aorta and flow to Pulmonic blood, from
Disease is cured in terms of the cause of disease, has made the state of an illness not in progress.
Description of the drawings
Structural representation when Fig. 1 is the opening of the present invention,
Fig. 2 is the left view schematic diagram of Fig. 1,
Fig. 3 is that the right side of Fig. 1 regards schematic diagram；
Fig. 4 is the schematic diagram that the present invention discharges completely；
Fig. 5 is a kind of embodiment of stationary fixture of the present invention；
Fig. 6 is the dimensional structure diagram of the present invention, and wherein diaphragm seal is not shown,
Fig. 7 is the structural representation of wherein two memory alloy wire coilings of the invention.
In figure：Left disk 1, right disk 2, blocking part 3, through hole 4, memory alloy wire 5, stationary fixture 6, delivery sheath 7, conveying steel
Cable 8；
Wherein：Joint 6.1, alloy connection strap 6.2.
In Fig. 1, in order to represent through hole disclosed by the invention, therefore specially the memory alloy wire that through hole goes out is concealed, to reach
It is better understood from effect；And in Fig. 4, be then in order to express the structure after present invention release, so not shown through hole.
Specific embodiment
As shown in Figure 1 to Figure 3, the atrial septal defect of present invention design is boxed out stopper, including 1 He of left disk of sealing gap
Right disk 2, between left disk 1 and right disk 2 block atrial septal defect column blocking part 3, and run through above-mentioned left disk 1, right disk 2
With the through hole 4 of column blocking part 3；The diameter with diameter greater than the right disk 2 of the left disk 1, the right left disk 2 with diameter greater than
The diameter of the blocking part 3；The left disk 1, right disk 2 and column blocking part 3 are the elasticity being compiled into by many memory alloy wires 5
Net, is provided with diaphragm seal in the elastic network(s)；5 one end of the memory alloy wire passes through the through hole 4 and constitutes the hole of the through hole 4
Wall, other end coiling form the outline of the left disk 1, right disk 2 and the column blocking part 2, and the memory alloy wire 5
On the same stationary fixture 6 that two ends are affixed to constrain the memory alloy wire 5.So, per memory alloy wire 5 one described in root
End is fixed on stationary fixture 6, and the other end is fixed on stationary fixture 6 through simultaneously wraparound from through hole 4, and the memorial alloy
5 intersection of silk is compiled into elastic network(s), and the elastic network(s) of the establishment molding not only forms left disk 1, right disk 2 and column blocking part 3, and
And define for placing the space of diaphragm seal, while forming the hole wall of the through hole 4.Using the through hole 4 for arranging by big defect
Become less defect, the aortic flow for both having limited high pressure chest flows to pulmonary artery, mitigates pulmonary vascular volume overload and pressure
Power is passed to；Pulmonary artery pressure can be prevented simultaneously again to raise suddenly and to cause serious consequence.Thus, when Pulmonic pressure exceedes master
During the pressure of tremulous pulse, blood flow can pass through reserved 4 shunting decompression of through hole so that the space that the height of system is pressed with release is felt concerned about on the right side, draws
Rescue late period patients with pulmonary hypertension.
Again as shown in figure 3, a kind of embodiment for how constraining 5 end of memory alloy wire of the present invention is given in figure：Gu
Clamp tool 6 includes coaxial with the through hole 4 and hanging joint 6.1, connects three alloy connections on the side wall of the joint 6.1
Bar 6.2, the angle between the adjacent alloy connection strap 6.2 is 120 °；The two ends of the memory alloy wire 5 are fixed on described
On alloy connection strap 6.2.So, by the carrying of alloy connection strap 6.2 so that joint 6.1 is vacantly arranged at through hole 4, and
Preferably, diameter of the external diameter of the joint 6.2 less than the through hole 4.Certainly, the quantity of alloy connection strap 6.2 and arrangement side
Formula can have a many kinds, but at least one 6.2 support bearing joint 6.1 of such alloy connection strap so that and the present invention sets
The stopper of meter can be admitted in human body.
Generally, a diameter of 3-6 millimeters of the through hole 6.The span of the external diameter of joint 6.2 is 1-3 millimeters.
The use process of the present invention is summarized as follows：The joint 6.1 of the stopper of the present invention design in delivery sheath 7 with
Conveying wirerope 8 is connected, and reaches heart along the femoral vein having built up, and in the case where X-ray, angiography etc. coordinate, is directly sent to
Drop left atrium；Left disk 1 is opened, pull back conveying wirerope 8 and delivery sheath 7 make left disk 1 tightly fit with ASD left rooms side；Then,
Column blocking part 3 is opened slowly, Synchronous closure site slowly opens right disk 2 again after all going well, left disk 1 and right disk 2 are logical
Cross the super-elasticity and memory performance of itself and be clipped in the both sides of atrial septal defect；Finally, check that plugging effect is good, break connector
6.2 with conveying wirerope 8 connection, as shown in Figure 4.
Diameter of the external diameter of the joint 6.1 disclosed in the present invention less than through hole 4, such benefit is, joint 6.1 and alloy
The joint face of connection strap 6.2 can be at same plane with alloy connection strap 6.2, and not affect blood flow to pass through from through hole 4.When connecing
Diameter of 6.1 external diameter more than through hole 4, be so accomplished by alloy connection strap 6.2 along column blocking part 3 axis outwardly
One section 6.21, so as to eliminate impact of the joint 6.1 to blood flow by through hole 4, as shown in Figure 5.
In Fig. 5, union joint 6.1 goes out to be threadedly coupled with the junction of delivery sheath 7, and the screwed hole of union joint 6.1 is blind
Hole, the screwed hole can also be through hole certainly；Either blind hole or through hole do not constitute impact to the core idea of the present invention.
As shown in Figure 6 and Figure 7, to memory alloy wire 5 of the invention, how coiling forms described through hole 4 and the left disk
1st, right disk 2 and the column blocking part 3 are illustrated, and are divided into a memory alloy wire 5 for convenience of description：Form institute
The Part I 5.1 of 4 hole wall of through hole is stated, the hole wall is also Part II 5.2 that is netted, forming left 1 end profile of disk, is formed
The Part III 5.3 of 1 waist profile of left disk, the Part IV 5.4, the formation that form left disk 1 and the connection facial contour of column blocking part 3
The Part V 5.5 of 3 waist profile of column blocking part, the Part VI for forming column blocking part 3 and the connection facial contour of right disk 2
5.6th, form the Part VII 5.7 of right 2 waist profile of disk, and form the Part VIII of round table-like 3 end profile of blocking part
5.8.Wherein, Part VIII 5.8 is located with the junction of the alloy connection strap 6.2 by the two ends of the memory alloy wire 5.
Diaphragm seal is provided with the space of " Contraband " shape constituted in the memory alloy wire 5.
Claims (5)
1. atrial septal defect is boxed out stopper, it is characterised in that：Left disk and right disk including sealing gap, positioned at left disk and right disk
Between block the column blocking part of atrial septal defect, and through the through hole of above-mentioned left disk, right disk and column blocking part；The left side
The diameter with diameter greater than the right disk of disk, the diameter with diameter greater than the column blocking part of the right disk；The left disk, the right side
Disk, the column blocking part and the through hole are to be worked out to be formed by many memory alloy wires；The memory alloy wire passes through institute
The hole wall that through hole constitutes the through hole is stated, and coiling forms the left disk, right disk and the column blocking part, the memorial alloy
On the same stationary fixture that the two ends of silk are affixed to constrain the memory alloy wire；The many memory alloy wires mutually intersect
Mistake is provided with diaphragm seal in the elastic network(s) into elastic network(s)；The stationary fixture includes coaxial with the through hole and hanging joint,
The side wall of the joint connects at least one alloy connection strap；The two ends of the memory alloy wire are fixed on the alloy connection strap
On.
2. atrial septal defect according to claim 1 is boxed out stopper, it is characterised in that：The external diameter of the joint is less than institute
State the diameter of through hole.
3. atrial septal defect according to claim 1 and 2 is boxed out stopper, it is characterised in that：The external diameter of the joint
Span is 1-3 millimeters.
4. atrial septal defect according to claim 1 is boxed out stopper, it is characterised in that：Connect on the side wall of the joint
Three alloy connection straps, the angle between the adjacent alloy connection strap is 120 °；The two ends of the memory alloy wire are fixed
On the alloy connection strap.
5. atrial septal defect according to claim 1 is boxed out stopper, it is characterised in that：A diameter of 3-6 of the through hole
Millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187151.2A CN104224246B (en) | 2014-05-05 | 2014-05-05 | ASD (atrial septal defect) reserved-hole occluder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187151.2A CN104224246B (en) | 2014-05-05 | 2014-05-05 | ASD (atrial septal defect) reserved-hole occluder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104224246A CN104224246A (en) | 2014-12-24 |
| CN104224246B true CN104224246B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410187151.2A Active CN104224246B (en) | 2014-05-05 | 2014-05-05 | ASD (atrial septal defect) reserved-hole occluder |
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| CN (1) | CN104224246B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174386A (en) * | 2017-04-27 | 2017-09-19 | 广州启骏生物科技有限公司 | A kind of device for treating pulmonary hypertension |
| CN109077759B (en) * | 2018-10-23 | 2024-03-26 | 昆明市延安医院 | Porous atrial septal defect plugging device |
| CN109925096A (en) * | 2019-04-29 | 2019-06-25 | 上海方维医疗科技有限公司 | For reducing the device of annulus of mitral valve opening area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613248Y (en) * | 2003-03-21 | 2004-04-28 | 龚善石 | Ventricular septel defect block device |
| CN1742689A (en) * | 2004-08-31 | 2006-03-08 | 解启莲 | Unidirectional valve heart septal defect plugger |
| WO2008040555A2 (en) * | 2006-10-05 | 2008-04-10 | PFM PRODUKTE FüR DIE MEDIZIN AKTIENGESELLSCHAFT | Implantable device |
| CN201905941U (en) * | 2010-12-24 | 2011-07-27 | 王广义 | Atrial septal defect occluder |
| CN202776633U (en) * | 2012-07-30 | 2013-03-13 | 上海形状记忆合金材料有限公司 | Heart occluder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9743918B2 (en) * | 2008-01-18 | 2017-08-29 | St. Jude Medical, Cardiology Division, Inc. | Percutaneous catheter directed intravascular occlusion device |
-
2014
- 2014-05-05 CN CN201410187151.2A patent/CN104224246B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613248Y (en) * | 2003-03-21 | 2004-04-28 | 龚善石 | Ventricular septel defect block device |
| CN1742689A (en) * | 2004-08-31 | 2006-03-08 | 解启莲 | Unidirectional valve heart septal defect plugger |
| WO2008040555A2 (en) * | 2006-10-05 | 2008-04-10 | PFM PRODUKTE FüR DIE MEDIZIN AKTIENGESELLSCHAFT | Implantable device |
| CN201905941U (en) * | 2010-12-24 | 2011-07-27 | 王广义 | Atrial septal defect occluder |
| CN202776633U (en) * | 2012-07-30 | 2013-03-13 | 上海形状记忆合金材料有限公司 | Heart occluder |
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| Publication number | Publication date |
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| CN104224246A (en) | 2014-12-24 |
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Effective date of registration: 20180815 Address after: 430070 202 building, No. 2, No. 2, B9 building, 818 hi-tech Avenue, East Lake New Technology Development Zone, Wuhan, Hubei. Patentee after: Wuhan Wei Ke Medical Technology Co., Ltd. Address before: 430022 753 Jing Han Road, Wuhan, Hubei Patentee before: Shang Xiaoke |
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