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CN110507380A - A kind of intracranial aneurysm auxiliary embolization device - Google Patents

A kind of intracranial aneurysm auxiliary embolization device Download PDF

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Publication number
CN110507380A
CN110507380A CN201810497183.0A CN201810497183A CN110507380A CN 110507380 A CN110507380 A CN 110507380A CN 201810497183 A CN201810497183 A CN 201810497183A CN 110507380 A CN110507380 A CN 110507380A
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CN
China
Prior art keywords
support portion
elastic net
intracranial aneurysm
push rod
flexible support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810497183.0A
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Chinese (zh)
Inventor
黄清海
刘建民
郭远益
冯明陶
吕楠
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Individual
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Individual
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Filing date
Publication date
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Priority to CN201810497183.0A priority Critical patent/CN110507380A/en
Publication of CN110507380A publication Critical patent/CN110507380A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/12Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12027Type of occlusion
    • A61B17/12031Type of occlusion complete occlusion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/12Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A61B17/12113Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/12Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/1214Coils or wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/12Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022Occluding by internal devices, e.g. balloons or releasable wires
    • A61B2017/1205Introduction devices
    • A61B2017/12054Details concerning the detachment of the occluding device from the introduction device
    • A61B2017/12063Details concerning the detachment of the occluding device from the introduction device electrolytically detachable

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Reproductive Health (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Neurosurgery (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses a kind of intracranial aneurysms to assist embolization device, belong to ganglioside GM_3 instrument field, including conveyance conduit, push rod, enclosed elastic net and flexible support portion, connecting rod is provided between the enclosed elastic net and the flexible support portion, the connecting rod is connected to the push rod, the enclosed elastic net enters closure of the realization of artery two to intracranial aneurysm neck after being detached from the conveyance conduit, the flexible support portion, which is detached from, to be contacted at the inner wall of artery one after the conveyance conduit and forms support to enclosed elastic net, the portion of freeing is provided between the push rod and the connecting rod.This programme uses new mechanical structure.The present invention has the following advantages and effects: enclosed elastic net blocks intracranial aneurysm neck, flexible support portion is supported in the inner wall of artery one, keep the stabilization of enclosed elastic net, and connecting rod is connected to the hollow portion to be formed with push rod and can convey in spring ring to aneurysm, embolism is formed, the convenient degree of surgical procedure is promoted.

Description

A kind of intracranial aneurysm auxiliary embolization device
Technical field
The present invention relates to ganglioside GM_3 instrument field, in particular to a kind of intracranial aneurysm assists embolization device.
Background technique
Intracranial aneurysm is tumor sample protrusion caused by local vascular pathologic limitation is expanded, arachnoid caused by rupturing Cavity of resorption bleeding case fatality rate is up to 50%.Mainly include out cranium folder to the treatment of intracranial aneurysm at present to close and minimally invasive interventional embolization two Kind means.With the rapid development of interventional technique, the safety and validity of the interventional therapy of intracranial aneurysm are had been confirmed.
Femoral artery puncture is mainly clinically being carried out by delivery pipe for interventional therapy intracranial aneurysm technology at present To sheath, spring ring is delivered in intracranial aneurysm Nang by microtubular under the guidance of delivery pipe, and spring ring and bracket or sacculus are auxiliary Help lower Coil embolization intracranial aneurysm.Under the action of bracket Auxiliary support, it can be realized the closing of intracranial aneurysm, make it Internal spring ring does not fall out out, to promote the effect of embolism.But due to the effect of haemodynamics, intracranial aneurysm About 50% betides vascular bifurcation position, aneurysm wider for tumor neck, prevents spring ring from charging into load tumor while protecting branch There is very big technical problem in intra-arterial.
The endovascular treatment for how solving furcation wide neck aneurysm has become a great problem of current ganglioside GM_3.In addition to Conventional bracket technology, or use two brackets with Y type, T-type release release also it has been reported that but by scaffold tube it is super choose it is remote End blood vessel simultaneously guarantees that bracket opens satisfaction, is very big technological challenge.For furcation aneurysm as shown in Figure 1, due to branch Frame 3 is cylindrical in shape, and needs to enter in artery 21 by artery 1, is formed as shown in Figure 2 to intracranial aneurysm neck Closure, in the course of surgery, bracket 3 needs that deformation occurs, and it is inconvenient that the installation of bracket 3 is controlled, and influences surgical procedure Efficiency.
Summary of the invention
The object of the present invention is to provide a kind of intracranial aneurysms to assist embolization device, under the supporting role of flexible support portion Enclosed elastic net is enabled steadily to close intracranial aneurysm, and easy for installation.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of intracranial aneurysm auxiliary bolt Plug device, including conveyance conduit, push rod, enclosed elastic net and flexible support portion, the enclosed elastic net and the elasticity Connecting rod is provided between support portion, the connecting rod is connected to the push rod, and the enclosed elastic net is detached from the conveying Enter closure of the realization of artery two to intracranial aneurysm neck after pipeline, the flexible support portion is supported after being detached from the conveyance conduit It touches the inner wall in artery one and forms support to enclosed elastic net, be provided with and free between the push rod and the connecting rod Portion.
By using above-mentioned technical proposal, enclosed elastic net and elasticity are conveyed by conveyance conduit under the action of push rod Support portion, after being detached from conveyance conduit, the inner wall that enclosed elastic net contradicts artery two realizes the closure to intracranial aneurysm neck, The inner wall that flexible support portion contradicts artery one realizes the support to enclosed elastic net, then realizes push rod by freeing portion again It frees, conveyance conduit and push rod can be withdrawn, and during being performed the operation, enclosed elastic net and flexible support portion are defeated It send and is able to achieve accurate installation under the action of pipe, it is easy for installation without transferring.Enclosed elastic net can be in intracranial aneurysm Neck forms horn-like, is more suitable for forming the closing to intracranial aneurysm neck.
The present invention is further arranged to: enclosed elastic net both ends are provided with to be imaged a little made of platinum.
By using above-mentioned technical proposal, the point effect of imaging made of platinum is in surgical procedure that survey meter can be passed through The position sensing to enclosed elastic net is accurately realized, so that whether clear enclosed elastic net seals intracranial aneurysm completely It closes, promotes the accuracy of operation.
The present invention is further arranged to: connection is formed with for conveying spring in the middle part of the push rod and the connecting rod The hollow portion of circle.
By using above-mentioned technical proposal, the hollow portion being connected in the middle part of push rod and connecting rod can be used in conveying spring Circle realizes to the embolism of intracranial aneurysm, spring ring it is easy for installation, promote the convenient degree of surgical procedure.
The present invention is further arranged to: the portion that frees is provided with the connection electrolysis in the push rod for electrolysis ring The heater strip of ring.
By using above-mentioned technical proposal, heater strip connects power supply, is formed into a loop in conjunction with electrolysis ring, carries out to electrolysis ring Heating realizes the separation between push rod and connecting rod to make to be electrolysed ring fusing, easy to operate.
The present invention is further arranged to: the thickness of the electrolysis ring is less than the thickness of the push rod.
By using above-mentioned technical proposal, the thickness for being electrolysed ring is less than the thickness of push rod, makes electrolysis ring be easy to fuse, drop Low fusing time, improves efficiency, reduces the pain of patient.
The present invention is further arranged to: the enclosed elastic net, flexible support portion and connecting rod are by platinum, Nitinol Or cochrome is made.
By using above-mentioned technical proposal, platinum, Nitinol or cochrome stability with higher, be not easy by The immune system of human body identifies, to be not easy to form thrombus, promotes security performance.
The present invention is further arranged to: the flexible support portion is in petaloid, and the flexible support portion is far from the connecting rod One end be in arc-shaped.
By using above-mentioned technical proposal, the flexible support portion of petaloid is just capable of forming preferable resilient support, thus It is not easy to slip after contradicting one inner wall of artery, is able to maintain good supporting role, enable enclosed elastic net steadily real Now to the sealing process of intracranial aneurysm.The one end of flexible support portion far from support rod is in arc-shaped, and contact is preferable, reduction pair The damage of Wall of Artery.
The present invention is further arranged to: the flexible support portion is provided at least three and is uniformly distributed in the week of connecting rod Side.
By using above-mentioned technical proposal, three or more flexible support portions are uniformly distributed, and can be realized to connecting rod Stable support function is not susceptible to the offset in direction, so that the position of enclosed elastic net is stablized, is formed good and held Long sealing process.
The present invention is further arranged to: the push rod internal diameter is 0.012in ~ 0.015in.
By using above-mentioned technical proposal, the push rod of 0.012in ~ 0.015in internal diameter is in the feelings for guaranteeing certain sectional area Under condition, there is good structural strength, be not susceptible to the imaging to fracture while being able to carry out conveying effect, promote operation behaviour The convenient degree of work.
In conclusion the invention has the following advantages: passing through connection between enclosed elastic net and flexible support portion Bar connection, and it is delivered to intra-arterial under the action of conveyance conduit, after being detached from conveyance conduit, enclosed elastic net and elasticity Support portion is opened successively, and enclosed elastic net realizes the closure to intracranial aneurysm neck, and flexible support portion is supported in artery one Inner wall keeps the stabilization of enclosed elastic net, and connecting rod is connected to the hollow portion to be formed with push rod can easily convey bullet In spring coil to aneurysm, embolism is formed, the convenient degree of surgical procedure is promoted.
Enclosed elastic net, flexible support portion and connecting rod are made of platinum, are not easy to be identified by self immune system, reduce The probability of thrombosis.
Fusing can be a little formed under the action of heater strip is powered by freeing for electrolysis ring formation, separate push rod and company Extension bar terminates to move back except push rod convenient for operation.
Detailed description of the invention
Fig. 1 is the installation process schematic diagram of stent occlusion intracranial aneurysm neck;
Fig. 2 is that stent occlusion intracranial aneurysm neck is installed schematic diagram;
Fig. 3 is the transmission process schematic diagram of enclosed elastic net and flexible support portion;
Fig. 4 is the schematic diagram of enclosed elastic net closing intracranial aneurysm neck;
Fig. 5 is enclosed elastic net and the schematic diagram that flexible support portion is opened.
In figure: 1, artery two;2, artery one;3, bracket;4, conveyance conduit;5, push rod;6, enclosed elastic net;7, elastic Support portion;8, connecting rod;9, portion is freed;10, point is imaged;11, hollow portion;12, heater strip.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
A kind of intracranial aneurysm auxiliary embolization device, as shown in figure 3, including conveyance conduit 4, push rod 5, enclosed elastic net 6 and flexible support portion 7, connection is realized by connecting rod 8 between enclosed elastic net 6 and flexible support portion 7, connecting rod 8 with push away It send bar 5 to connect, and is provided with the portion of freeing 9 between the two.Enclosed elastic net 6 is realized after being detached from conveyance conduit 4 in artery 1 The closure of intracranial aneurysm neck, flexible support portion 7 contacts at the inner wall of artery 21 after being detached from conveyance conduit 4, when connecting rod 8 After freeing with push rod 5, push rod 5 and conveyance conduit 4 are withdrawn, flexible support portion 7 realizes the support to enclosed elastic net 6, Steadily close the neck of intracranial aneurysm, secondary spring circle embolism.
Enclosed elastic net includes close net braiding structure and cutting support structure.Close net braiding structure is in horn-like, loudspeaker Mouth-shaped includes round, ellipse and petaloid, and the silk chain of close net braiding can be platinum, Nitinol, cochrome lamp material, Preferably niti material;Cutting support structure includes at least two wave heads.
As shown in Figure 3 and 4, the both ends of enclosed elastic net 6 are provided with the point of the imaging made of platinum 10, are carrying out hand During art, imaging point 10 can accurately image the position of enclosed elastic net 6 under the action of survey meter, so as to see It observes whether enclosed elastic net 6 accurately blocks the neck of intracranial aneurysm, promotes the precision and convenient degree of surgical procedure.
As shown in Figure 4 and 5, flexible support portion 7 is arranged in petaloid, and flexible support portion 7 is easily occurred Deformation keeps good resilient support.And the one end of flexible support portion 7 far from connecting rod 8 is in arc-shaped, and contact is preferable, It is smaller for the inner wall damage of artery 1.Flexible support portion 7 is provided at least three, and is uniformly distributed in the week of connecting rod 8 The support direction of connecting rod 8 is stablized in side, and so as to keep the position of connecting rod 8 to stablize, enclosed elastic net 6 can be steady Surely the closure to intracranial aneurysm neck is realized.
Enclosed elastic net 6, connecting rod 8 and support portion are made of platinum, Nitinol or cochrome, platinum, nickel Titanium alloy or cochrome stability with higher are not easy to be identified by the immune system of human body, thus be not easy to form thrombus, Promote security performance.
As shown in figure 5, connecting rod 8 is connected to the middle part of push rod 5, it is formed with hollow portion 11, in the course of surgery, is passed through Hollow portion 11 can easily guide springs circle enter in intracranial aneurysm, realize the embolism to intracranial aneurysm, promote hand The convenient degree of art operation.
As shown in figure 3, freeing portion 9 between push rod 5 and connecting rod 8 for electrolysis ring, and it is provided in push rod 5 The heater strip 12 connecting with electrolysis ring, can be realized the dissolution of electrolysis ring after heater strip 12 is powered, so that push rod 5 and connection Bar 8 disconnects, and realizes the disengaging of push rod 5.The thickness for being electrolysed ring is less than the thickness of push rod 5, can facilitate the fusing of electrolysis ring Disengaging process.
The internal diameter of push rod 5 is 0.012in ~ 0.015in, can facilitate the bolt of spring ring while keeping its intensity Plug, promotes the convenient degree and security performance of surgical procedure.
Specific embodiment: during being performed the operation, first anaesthetizing entire patient, femoral artery puncture to sheath, whole body Test tube of hepari, row routine rotational DSA inspection and after carrying out 3D reconstruction measure aneurysm diameter.Conveyance conduit 4 is delivered to by sheath Intracranial aneurysm and close at tumor neck, forms stable channel, next collapses enclosed elastic net 6 and flexible support portion 7, It is delivered at intracranial aneurysm under the action of push rod 5 by conveyance conduit 4, and enclosed elastic net 6 is made to be detached from conveying Pipeline 4, enclosed elastic net 6 is opened under the action of natural resiliency at this time, mobile enclosed elastic net 6, so that imaging point is contradicted and moved The inner wall of arteries and veins 1 closes the neck of intracranial aneurysm.Next, conveying spring ring to cranium by push rod 5 and connecting rod 8 Embolism is formed in internal aneurysm, after, it keeps push rod 5 motionless, delivery pipe 4 is withdrawn, until flexible support portion 7 and delivery pipe Road 4 is detached from, and flexible support portion 7 opens the inner wall for contradicting artery 1 at this time, forms the support to enclosed elastic net 6.Next right Heater strip 12 is powered, and the electrolysis ring as the portion that frees 9 fuses, and realizes the separation of connecting rod 8 and push rod 5, withdraws from branch again Strut and conveyance conduit 4.
The position that connecting rod 8 is able to maintain under the action of flexible support portion 7 is stablized, so as to keep enclosed elastic net 6 stabilization is not susceptible to changing for position for the easy for installation of enclosed elastic net 6, and in the percussion by blood It is dynamic, it can be realized the sealing process to intracranial aneurysm neck stabilizing, keep the stabilization embolism of spring ring.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (9)

1. a kind of intracranial aneurysm assists embolization device, it is characterised in that: including conveyance conduit (4), push rod (5), elasticity envelope Net (6) and flexible support portion (7) are closed, is provided with connecting rod between the enclosed elastic net (6) and the flexible support portion (7) (8), the connecting rod (8) is connected to the push rod (5), and it is laggard that the enclosed elastic net (6) is detached from delivery pipe (4) road Enter closure of artery two (1) realization to intracranial aneurysm neck, after the flexible support portion (7) is detached from the conveyance conduit (4) The inner wall for contacting at artery one (2) forms support to enclosed elastic net (6), the push rod (5) and the connecting rod (8) it Between be provided with the portion of freeing (9).
2. a kind of intracranial aneurysm according to claim 1 assists embolization device, it is characterised in that: the enclosed elastic net (6) both ends are provided with imaging point (10) made of platinum.
3. a kind of intracranial aneurysm according to claim 1 assists embolization device, it is characterised in that: the push rod (5) And connection is formed with the hollow portion (11) for conveying spring ring in the middle part of the connecting rod (8).
4. a kind of intracranial aneurysm according to claim 1 assists embolization device, it is characterised in that: described to free portion (9) To be electrolysed ring, the heater strip (12) for connecting the electrolysis ring is provided on the push rod (5).
5. a kind of intracranial aneurysm according to claim 4 assists embolization device, it is characterised in that: the thickness of the electrolysis ring Degree is less than the thickness of the push rod (5).
6. a kind of intracranial aneurysm according to claim 1 assists embolization device, it is characterised in that: the enclosed elastic net (6), flexible support portion (7) and connecting rod (8) are made of platinum, Nitinol or cochrome.
7. a kind of intracranial aneurysm according to claim 1 assists embolization device, it is characterised in that: the flexible support portion It (7) is in petaloid, the one end of the flexible support portion (7) far from the connecting rod (8) is in arc-shaped.
8. a kind of intracranial aneurysm according to claim 1 assists embolization device, it is characterised in that: the flexible support portion (7) at least three are provided with and is uniformly distributed in the side of connecting rod (8).
9. a kind of intracranial aneurysm according to claim 1 assists embolization device, it is characterised in that: the push rod (5) Internal diameter is 0.012in ~ 0.015in.
CN201810497183.0A 2018-05-22 2018-05-22 A kind of intracranial aneurysm auxiliary embolization device Pending CN110507380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810497183.0A CN110507380A (en) 2018-05-22 2018-05-22 A kind of intracranial aneurysm auxiliary embolization device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810497183.0A CN110507380A (en) 2018-05-22 2018-05-22 A kind of intracranial aneurysm auxiliary embolization device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115399825A (en) * 2022-08-01 2022-11-29 上海心玮医疗科技股份有限公司 A device for treating bifurcation aneurysms
CN116158801A (en) * 2023-03-08 2023-05-26 海军安庆医院 Cerebral aneurysm micro-plugging device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7569066B2 (en) * 1997-07-10 2009-08-04 Boston Scientific Scimed, Inc. Methods and devices for the treatment of aneurysms
CN102438533A (en) * 2009-04-20 2012-05-02 加奇生物有限公司 Mechanical interlocking connection conveying device for conveying embolism instrument
CN102871700A (en) * 2012-10-09 2013-01-16 加奇生物科技(上海)有限公司 Braided part system for embolizing aneurysm
CN103607964A (en) * 2011-06-03 2014-02-26 帕尔萨维斯库勒公司 Systems and methods for sealing anatomical wounds, including shock absorbing aneurysm devices
US20150142043A1 (en) * 2013-11-15 2015-05-21 Cook Medical Technologies Llc Aneurysm closure device
CN104771200A (en) * 2015-04-15 2015-07-15 中国人民解放军第二军医大学 Intracranial aneurysm neck reconstruction device
CN204931771U (en) * 2015-09-18 2016-01-06 王奎重 A kind of intracranial aneurysm intervention embolization device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7569066B2 (en) * 1997-07-10 2009-08-04 Boston Scientific Scimed, Inc. Methods and devices for the treatment of aneurysms
CN102438533A (en) * 2009-04-20 2012-05-02 加奇生物有限公司 Mechanical interlocking connection conveying device for conveying embolism instrument
CN103607964A (en) * 2011-06-03 2014-02-26 帕尔萨维斯库勒公司 Systems and methods for sealing anatomical wounds, including shock absorbing aneurysm devices
CN102871700A (en) * 2012-10-09 2013-01-16 加奇生物科技(上海)有限公司 Braided part system for embolizing aneurysm
US20150142043A1 (en) * 2013-11-15 2015-05-21 Cook Medical Technologies Llc Aneurysm closure device
CN104771200A (en) * 2015-04-15 2015-07-15 中国人民解放军第二军医大学 Intracranial aneurysm neck reconstruction device
CN204931771U (en) * 2015-09-18 2016-01-06 王奎重 A kind of intracranial aneurysm intervention embolization device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115399825A (en) * 2022-08-01 2022-11-29 上海心玮医疗科技股份有限公司 A device for treating bifurcation aneurysms
CN116158801A (en) * 2023-03-08 2023-05-26 海军安庆医院 Cerebral aneurysm micro-plugging device
CN116158801B (en) * 2023-03-08 2023-09-26 海军安庆医院 Cerebral aneurysm micro-plugging device

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