CN207604981U - A kind of net barrier arterial branch initial part aneurysm holder - Google Patents
A kind of net barrier arterial branch initial part aneurysm holder Download PDFInfo
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- CN207604981U CN207604981U CN201720488237.8U CN201720488237U CN207604981U CN 207604981 U CN207604981 U CN 207604981U CN 201720488237 U CN201720488237 U CN 201720488237U CN 207604981 U CN207604981 U CN 207604981U
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- rack body
- initial part
- mesh portions
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Abstract
The technical problem to be solved by the utility model is to provide a kind of nets to obstruct arterial branch initial part aneurysm holder, including main body is netted rack body, and the proximal end of the rack body is big mouth, is distally osculum；The big mouth of the rack body proximal end is adapted with proximal vessel internal diameter, the osculum of the rack body distal end is adapted with distal vessels internal diameter, the rack body includes close mesh portions and Fei Mi mesh portions, the far and near end of funnel type holder and the remote proximal inner diameter of arterial branch match, and can effectively block the aneurysm of arterial branch initial part；When funnel type holder corresponds to aneurysmal position, intensive net is set, the far and near end of holder and the remote proximal inner diameter of arterial branch match, the close wet end position of the longer side of holder can be completely covered by aneurysm, blood is prevented to enter in aneurysm cavity, close mesh portions prevent blood from entering in aneurysm cavity, the safety that can simplify operation, improve curative effect and endovascular procedures.
Description
Technical field
The invention belongs to medical instruments fields, and in particular to treat the close net holder in aneurysmal part.
Background technology
Aneurysm is a kind of duration dilatancy disease occurred due to ductus arteriosus wall local weak.Cerebral aneurysm belongs to
Peripheral aneurysm, refers to the tumor sample protrusion that the expansion of cerebral artery tube wall limitation generates, the aneurysm tumor wall of protrusion blood flow not
The disconnected lower gradual thinning and final rupture haemorrhage of impact.Ruptured intracranial aneurysm fall ill urgency, severe symptoms, without apparent tendency, have
The very high death rate and disability rate.Mainly a point surgical clamp is closed and endovascular intervention treatment for the treatment of cerebral aneurysm.But
Surgical clamp close wound is big, complication is more, operation and recovery time it is all very long, do not welcome by doctor and patient.With
The progress of the intravascular Interventional Treatment technology of minimal invasive, more and more cerebral aneurysms receive intravascular Interventional Treatment
Technology, endovascular intervention technology are increasingly becoming the dominant technology of cerebral aneurysm treatment.
The Endovascular Embolization of cerebral aneurysm mainly uses detachable coil to be implanted into aneurysm by microtubular and carries out
Embolism so that form thrombus in aneurysm cavity and be closed and reach dissection healing.For giant aneurysm or wide neck aneurysm
For, simple spring ring be not easy spring ring after embolism or embolism be easy the abjection from aneurysm cavity cause to intra-arterial it is different
Position embolism, causes the severe complications such as cerebral infarction, this just needs holder to assist embolism (such as Fig. 1):At this moment, it needs first to be placed in a gold medal
Belong to bare bracket, then microtubular is sent into out of holder large-mesh in aneurysm cavity again and carries out Coil embolization, finally waits for bullet
Spring coil withdraws from microtubular after being completely filled with aneurysm cavity, completes embolic processes.But for bifurcated artery initial part aneurysm
Speech, such holder auxiliary treatment can not but carry out, because bifurcated artery is very thin, and bifurcated artery initial part and main artery phase
It is adjacent, be formed by that aneurysm is also larger, and the internal diameter uniformity at conventional bracket distance end is implanted into dynamic to branch when bifurcated artery
Dilating effect caused by the distal end of arteries and veins is larger, is easy to damage arterial branch distal end.Just there is an urgent need to develop a kind of uses for this simply,
The easy to operate aneurysm for treating arterial branch initial part, to the peace for simplifying operation, improving curative effect and endovascular procedures
Quan Xing.
Utility model content
It is aneurysmal for treating arterial branch initial part that the technical problem to be solved by the utility model is to provide one kind
Funnel type holder.
The funnel type holder includes rack body, close mesh portions, proximal end great Kou, distal end osculum, and far and near port part connection is prolonged
Continue into a funnel shaped, from rack body proximal end to distal end, shelf inner diameter tapers into, internal diameter and the artery point of distal end oral area
The vessel diameter of Zhi Yuanduan matches, and the diameter and the internal diameter of arterial branch initial part of mount proximal end oral area match, and have reached
It is complete to block the aneurysmal purpose of aneurysm branch's initial part.
The utility model solve the technical solution that its technical problem uses for：
A kind of net barrier arterial branch initial part aneurysm holder, including main body is netted rack body, the holder
The proximal end of main body is big mouth, is distally osculum；The big mouth of the rack body proximal end is adapted with proximal vessel internal diameter, the branch
The osculum of frame body distal end is adapted with distal vessels internal diameter, and the rack body includes close mesh portions and Fei Mi mesh portions, institute
The circumscribed circle diameter of each mesh when stating close mesh portions release is 200 μm -1000 μm；Net when the non-close mesh portions release
A diameter of 1mm-3mm of hole circumscribed circle.
Further, close mesh portions can block the artery of arterial branch initial part completely after the rack body release
Tumor.
Further, the area coverage of the close mesh portions of the rack body is the 30%- of rack body lateral surface area
70%。
Further, the rack body is provided with more than one metal marker object.
Further, the outer boundary of the close mesh portions is provided with more than one metal marker object.
Further, the reticular structure of the rack body is that hollow out is cut or filamentary material weaves.
Further, including rack body inner wall is axially provided with support item.
Further, the rack body is eject or the swollen formula of ball.
Further, the material of the close mesh portions is biocompatible membrane；Such as：Makrolon, polyanhydride copolymer
Or gel.
Further, the rack body is titanium silk, tungsten filament, nitinol alloy wire, tantalum wire, stainless steel wire, golden alloy wire
It is any or any two composition composite material.
The rack body of the utility model and support net item be titanium silk, tungsten filament, nitinol alloy wire, tantalum wire, stainless steel wire,
Any or any two compositions composite material of golden alloy wire, or selection absorbable material or medical material, such as：Poly- carbonic acid
Ester, polyanhydride copolymer, gel or magnesium alloy.
The part twine of close mesh portions can select biocompatible membrane, specially polytetrafluoroethylene film, makrolon, poly-
Acid anhydride copolymer or cellulose.
Preferably, the close mesh portions select biocompatible membrane, by making mesh on biocompatible membrane
It is made.
The close net holder of the utility model is used cooperatively with guiding wire, conveying microtubular, conveying lever, guiding catheter,
The prior art being known to the skilled person.
The close net rack body of the utility model has shrinkage, and shape is at cylindrical shape, with aneurysm under release conditions
Cerebral artery vessel inner wall be adapted, shrink and be fixed in microtubular under feed status, and through leading under the guiding of guiding wire
Guiding tube is delivered at aneurysm, is discharged for treating aneurysm.
The positive effect of the present invention is：
(1) the far and near end of funnel type holder and the remote proximal inner diameter of arterial branch match, and can effectively block artery
The aneurysm of branch's initial part；When funnel type holder corresponds to aneurysmal position, intensive net, the far and near end of holder and artery are set
The remote proximal inner diameter of branch matches, and can effectively block the aneurysm of arterial branch initial part.When funnel type holder discharges
Afterwards, the close wet end position of the longer side of holder can be completely covered by aneurysm, and blood is prevented to enter in aneurysm cavity, can reduce pair
The safety of endangium stimulate, simplify operation, improving curative effect and endovascular procedures.Close mesh portions prevent blood from entering artery
Tumor intracavitary, the safety that operation can be simplified, improve curative effect and endovascular procedures.
The metal marker object of mount proximal end, distal end and a longer middle side part places site convenient for positioning, when release funnel type
When holder and leakage ear type bare bracket, allow the metal marker level of the longer side distal end of holder in the upper of aneurysmal distal vascular
Edge, fixed push-pull rod, gradually withdraws microtubular, after the metal marker object of mid-stent exposes microtubular, it can be determined that holder
The position of longer side, and the position of suitably adjustment microtubular allows the metal marker level of the longer side of holder in development blood vessel
Upper limb, and judge that can holder be completely covered aneurysm cavity, holder is then gradually discharged completely.
（2）Can greatly be lowered into blood flow in aneurysm when the close mesh portions closing aneurysm mouth of holder, and make into
Enter the blood flow in aneurysm to slow down, generate vortex, ultimately forms thrombus and closure of aneurysms；The non-close mesh portions at holder both ends can
To reduce the stimulation to nonaneurysm position normal blood vessels wall around, reduce endometrial hyperplasia reaction, and reduce to branch vessel
It influences；The merging of holder is carried out in intra-arterial, not in aneurysm transluminal operation, reduces artery caused by tumor transluminal operation
Tumor rupture haemorrhage causes the danger of severe complication.
（3）Provide a kind of aneurysmal method treated small aneurysm and involve vessel branch：Small aneurysm
Treatment be also a difficult point, spring ring can not fill in embolism, close mesh portions can be allowed to cover using the close net holder in part
Small aneurysm cavity, and the non-close mesh portions in both sides, then can allow blood flow to pass through the branch vessel of surrounding, not influence branch's blood
The blood flow of pipe.
（4）Close net holder is also a greatly progress for treatment giant aneurysm, is placed in one or two close net branch
Frame can block giant aneurysm without inserting spring ring, both be placed in caused occupation time process without spring ring, also greatly
Ground simplifies operating performance, reduces medical expense.
The holder of the utility model can close aneurysm well, reduce the interference to branch vessel blood supply, drop
It is low that vascellum endometrial hyperplasia is reduced on the stimulation of surrounding normal blood vessel and influence, treatment operation can be simplified, improve Therapeutic safety
And effect.
Description of the drawings
Fig. 1 is that intravascular stent uses schematic diagram when the prior art treats aneurysm；
Fig. 2 is the structural schematic diagram of the utility model holder；
Fig. 3 is the process schematic of ophthalmic artery tumor after the utility model treatment；
Fig. 4 is the process schematic that the utility model treats posterior traffic aneurysm；
In attached drawing：1 rack body, the big mouths of 1-1,1-2 osculums, 2 close mesh portions, 3 non-close mesh portions, 4 metal marker objects, 5
Support item, 7 aneurysms, 8 ophthalmic arteries, 9 internal carotids, 10 microtubulars, 11 micro-wires, 12 spring rings, 13 posterior communicating arterys, 15
Metal marker object.
Specific implementation mode
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with this practicality
Attached drawing 1-4 in new embodiment and specific implementation mode carry out the technical scheme in the embodiment of the utility model clear, complete
Site preparation describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
It is obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present invention
Every other embodiment, shall fall within the protection scope of the present invention.
Embodiment 1
Such as Fig. 3, a kind of 1 net of embodiment obstructs arterial branch initial part aneurysm holder, including main body is netted holder
The proximal end of main body 1, the rack body 1 is big mouth 1-1, is distally osculum 1-2；The big mouth 1-1 of 1 proximal end of the rack body with
Proximal vessel internal diameter is adapted, and the osculum 1-2 of 1 distal end of the rack body is adapted with distal vessels internal diameter, the holder master
Body includes close mesh portions 2 and Fei Mi mesh portions 3, and the circumscribed circle diameter of each mesh when the close mesh portions 2 discharge is 200 μ
m-1000μm；A diameter of 1mm-3mm of mesh circumscribed circle when the non-close mesh portions 3 discharge.After the rack body 1 discharges
Close mesh portions 2 can block the aneurysm of arterial branch initial part completely.The covering surface of the close mesh portions 2 of the rack body 1
Product is the 30%-70% of 1 lateral surface area of rack body.The rack body 1 is provided with more than one metal marker object 4.It is described
The outer boundary of close mesh portions 2 is provided with more than one metal marker object 4.The reticular structure of the rack body 1 cuts for hollow out
Or filamentary material braiding.It is axially provided with including 1 inner wall of rack body and supports item 5.The rack body is that eject or ball are swollen
Formula.The material of the close mesh portions is biocompatible membrane；Such as：Makrolon, polyanhydride copolymer or gel.The holder master
Body is any or any two compositions composite wood of titanium silk, tungsten filament, nitinol alloy wire, tantalum wire, stainless steel wire, golden alloy wire
Material.
The technical program is in integrally that funnel is ploughed, one large one small, hereafter also represents rack body 1 with funnel type；Leakage
The main body rack of bucket type holder is reticular structure.When holder part is in unfolded state, centre is the hollow solid of infundibulate
Reticular structure.The proximal open portion of funnel type holder is larger, matches with the vessel diameter of arterial branch proximal end；Distal end oral area compared with
It is small, match with the vessel diameter of arterial branch distal end；Holder distance port part connects into funnel type, and holder proximally arrives distal end
Internal diameter tapers into.Holder can be designed to symmetrical funnel shaped；It can also be designed to asymmetric funnel shaped, make funnel
The section side of holder is longer than the other side, and close mesh portions can be located at the longer side tube wall of holder and form half close net of funnel type branch
Frame, the whole surface that close mesh portions can also be located at holder form the close net holder of funnel type.Funnel type mount proximal end oral area is neighbouring
More than one metal marker object is arranged in longer side.The reticular structure of holder described in funnel type is that hollow out is cut or filamentary material is compiled
It knits.Holder is eject or the swollen formula of ball.At the middle part of the longer side of funnel type holder, more than one metal marker object is set.
Rack body point includes close mesh portions 2 and Fei Mi mesh portions 3；Close mesh portions 2 are by being made in rack body
Cheng Zhong forms the size that the dictyosome of setting section is produced for 1000 μm of mesh, is in close mesh portions 2 when release conditions
Area coverage is the 80% of the rack body gross area, and the mesh size of non-close mesh portions 3 is 2mm；The rack body is pipe
Shape has two spiral shapes for traversing holder both ends to support net item 5.
As shown in figure 3, using asymmetric funnel type stent in the treatment ophthalmic artery section aneurysm, which is hollow net
Shape structure, far distance port is small, and proximal port is big, and the long side in bracket cross section side is short, is asymmetrical type funnel.The holder is from swollen
Formula.
Two metal marker objects 15 are arranged in the proximal part.A metal marker object is arranged in distal portions.Holder is longer
One middle side part be arranged a metal marker object so that three metal marker levels of holder longer side proximal end, distal end and middle part in
On straight line or camber line, positioning when for holder release.
The intravascular stent of the utility model, which is that nitinol alloy wire is woven, to be formed, and the big funnel of the small Single port of Single port is formed
The netted hollow structure of type.
The utility model funnel type holder is used cooperatively with micro-wire 11, microtubular 10 and guiding catheter, is ability
The prior art well known to field technique personnel.
The utility model funnel type holder has shrinkage, and shape is hollow reticular structure under release conditions, and holder is remote
The osculum at end is adapted with distal vessels inner wall, and the big mouth in proximal end is adapted with proximal vessel internal diameter；It is received under conveying and contraction state
Contracting is fixed in microtubular 10, and is delivered at the aneurysm of blood vessel under the guiding of micro-wire 11, and release blocks aneurysm.
The funnel type structure of the funnel type holder can be different from far and near end blood vessel diameter match, be conducive to completely block artery
Tumor is treated.
Embodiment 1 is applied to the aneurysm that branch vessel is involved in treatment, and the close mesh portions 2 of holder can block aneurysm 7
Oral area, and make to form vortex and thrombus and closure of aneurysms chamber into the blood in aneurysm 7, blood prevented to enter aneurysm
It is interior, and the close mesh portions 2 of holder and Fei Mi mesh portions 3 do not influence the patency of distal vessels branch.Embodiment 1 is applied to treatment
The close mesh portions 1 of small aneurysm, holder can block small aneurysm oral area, and blood is prevented to enter in small aneurysm, close
Net and non-close mesh portions can reduce the stimulation to blood vessel, reduce vascellum endometrial hyperplasia.
Embodiment 2
As shown in figure 4, rack body is reticular structure, the rack body is divided into close mesh portions 2 and Fei Mi mesh portions 3；
The mesh size of close mesh portions 2 is 400 μm, and the close net area coverage of close mesh portions 2 is that rack body is total when in release conditions
The mesh size of the 20% of area, non-close mesh portions 3 is 3mm；The rack body is circular tube shaped, has two to traverse rack body
The spiral shape at both ends supports net item 5.
Radiopaque metal marker object 15, close mesh portions 2 and non-close wet end is respectively arranged in close 2 both ends of mesh portions among holder
Divide at 3 and radiopaque metal marker object 15 is also respectively set.
For treating giant aneurysm, the close mesh portions 2 of holder can block 7 oral area of giant aneurysm；Make to enter artery
Blood in tumor forms vortex and thrombus and closure of aneurysms chamber.The non-close mesh portions 3 at holder both ends can be reduced to blood vessel
Stimulation reduces vascellum endometrial hyperplasia.
In the funnel type holder release, micro-wire 11 is sent into the distal position of endovascular aneurysm first, then
Funnel type holder is sent to the position where aneurysm under the guiding of micro-wire 11 so that the distal metal mark of funnel type holder
Remember level in aneurysm mouth distal side.Later, the push-pull rod of fixed funnel type holder slowly withdraws microtubular 10, first makes funnel type
The distal metal marker of holder is released out of microtubular 10.The position for observing distal metal marker, is located at aneurysm
The uppermost edge of distal vascular (ophthalmic artery 8 or posterior communicating artery 13).If position is not suitable for, then adjusts the position of microtubular 10
It sets, makes funnel type rack far end metal marker level in the most upper limb of aneurysm distal vascular.Then it is further continued for withdrawing microtubular
10, expose the marker of one middle side part of holder so that the marker is located at the extension of aneurysm oral area, distally located blood vessel upper limb
On line.Whether artery is completely covered according to the Distance Judgment proximal end metal marker object of the metal marker object and distal metal marker
Tumor proximal port.If can be completely covered, continue slowly recession microtubular 10, and gradually complete release funnel type holder.
The far and near end of the utility model and rack body are in funnel type, match completely with the internal diameter at blood vessel distance end, can seal completely
Stifled aneurysm oral area achievees the purpose that occlude aneurysm and prevents recurrence.
Claims (10)
1. a kind of net obstructs arterial branch initial part aneurysm holder, which is characterized in that including main body be netted rack body
（1）, the proximal end of the rack body (1) is big mouth (1-1), is distally osculum (1-2)；Rack body (1) proximal end it is big
Mouthful（1-1）It is adapted with proximal vessel internal diameter, the osculum (1-2) of rack body (1) distal end is mutually fitted with distal vessels internal diameter
Match, the rack body includes close mesh portions（2）With non-close mesh portions（3）, the close mesh portions（2）Each mesh when release
Circumscribed circle diameter be 200 μm -1000 μm；The non-close mesh portions（3）A diameter of 1mm- of mesh circumscribed circle when release
3mm。
2. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：The branch
Close mesh portions after frame body (1) release（2）The aneurysm of arterial branch initial part can be blocked completely.
3. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：The branch
The close mesh portions of frame body (1)（2）Area coverage be rack body（1）The 30%-70% of lateral surface area.
4. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：The branch
Frame body（1）It is provided with more than one metal marker object（4）.
5. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：It is described close
Mesh portions（2）Outer boundary be provided with more than one metal marker object（4）.
6. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：The branch
The reticular structure of frame body (1) is that hollow out is cut or filamentary material weaves.
7. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：Including branch
Frame body (1) inner wall is axially provided with support item（5）.
8. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：The branch
Frame body is eject or the swollen formula of ball.
9. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：It is described close
The material of mesh portions is biocompatible membrane；Such as：Makrolon, polyanhydride copolymer or gel.
10. a kind of net according to claim 1 obstructs arterial branch initial part aneurysm holder, it is characterised in that：It is described
Rack body is titanium silk, any or any two compositions of tungsten filament, nitinol alloy wire, tantalum wire, stainless steel wire, golden alloy wire answers
Condensation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488237.8U CN207604981U (en) | 2017-05-04 | 2017-05-04 | A kind of net barrier arterial branch initial part aneurysm holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488237.8U CN207604981U (en) | 2017-05-04 | 2017-05-04 | A kind of net barrier arterial branch initial part aneurysm holder |
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| Publication Number | Publication Date |
|---|---|
| CN207604981U true CN207604981U (en) | 2018-07-13 |
Family
ID=62792257
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720488237.8U Active CN207604981U (en) | 2017-05-04 | 2017-05-04 | A kind of net barrier arterial branch initial part aneurysm holder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251285A (en) * | 2019-05-21 | 2019-09-20 | 泰升医疗有限公司 | Expandable stent |
| CN112842434A (en) * | 2020-12-30 | 2021-05-28 | 杭州唯强医疗科技有限公司 | Intra-cavity blocking device |
| WO2023185486A1 (en) * | 2022-03-28 | 2023-10-05 | 上海微创医疗器械（集团）有限公司 | Occlusion stent and delivery system |
-
2017
- 2017-05-04 CN CN201720488237.8U patent/CN207604981U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251285A (en) * | 2019-05-21 | 2019-09-20 | 泰升医疗有限公司 | Expandable stent |
| CN110251285B (en) * | 2019-05-21 | 2021-06-18 | 泰升医疗有限公司 | Tapered blood vessel support |
| CN112842434A (en) * | 2020-12-30 | 2021-05-28 | 杭州唯强医疗科技有限公司 | Intra-cavity blocking device |
| CN112842434B (en) * | 2020-12-30 | 2022-07-22 | 杭州唯强医疗科技有限公司 | Intra-cavity blocking device |
| WO2023185486A1 (en) * | 2022-03-28 | 2023-10-05 | 上海微创医疗器械（集团）有限公司 | Occlusion stent and delivery system |
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