CN104771200A - Intracranial aneurysm neck reconstruction device - Google Patents
Intracranial aneurysm neck reconstruction device Download PDFInfo
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- CN104771200A CN104771200A CN201510179045.4A CN201510179045A CN104771200A CN 104771200 A CN104771200 A CN 104771200A CN 201510179045 A CN201510179045 A CN 201510179045A CN 104771200 A CN104771200 A CN 104771200A
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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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
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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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- General Health & Medical Sciences (AREA)
- Reproductive Health (AREA)
- Vascular Medicine (AREA)
- Neurosurgery (AREA)
- Prostheses (AREA)
Abstract
The invention relates to an intracranial aneurysm neck reconstruction device. The intracranial aneurysm neck reconstruction device comprises a reconstruction device body, a guide wire and an outer sheath tube, wherein the reconstruction device body gradually and outwards expands from the near end to the far end; the far end of the reconstruction device body is provided with a head end developing block; the middle end of the reconstruction device body is provided with a middle end developing block; the near end of the reconstruction device body is folded downwards and is fixedly arranged on the guide wire; the guide wire is positioned in the outer sheath tube; a disconnecting point is arranged at the connected position of the guide wire and the reconstruction device body; the other end of the guide wire is connected with a disconnector. The intracranial aneurysm neck reconstruction device disclosed by the invention has the advantages that by implanting the reconstruction device body, the flowing speed of blood in an intracranial aneurysm is slowed down, the hemodynamics in the intracranial aneurysm is changed, and thus the impact from local blood flowing to an aneurismal wall can be reduced; meanwhile, through the implantation of a parent artery reconstruction device body, a local parent artery can be strengthened and repaired, and the physiological structure of a normal part of the parent artery is enabled to recover.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically, is a kind of intracranial aneurysm neck reconstructing device.
Background technology
Intracranial aneurysm is the encephalic angioma sample projection because local vascular abnormal change produces, it is the cerebrovascular disease of a kind of high pathogenicity rate and high fatality rate, be the main cause causing subarachnoid hemorrhage, the intracranial aneurysm mortality rate broken is up to 51%, and the disability rate of existent is close to 50%.It is two kinds of major ways for the treatment of of intracranial aneurysm that surgical clamp is closed with intravascular Interventional Treatment.Along with the development that intervention apparatus is swift and violent, intracranial aneurysm interventional therapy, owing to having Wicresoft, safety, the advantage such as effective, has become the clinical treatment of a lot of hospitals first-selection at present.
The principle of interventional therapy is clogged by mechanicalness, change local hemodynamic studies factor, secondary thrombus is formed, having developed various embolization device is in the world used for the treatment of aneurysm at present, as turn, is directed in aneurysm by intubation intervention, fill aneurysmal space, form thrombosis at short notice, reduce blood directly to the impact of aneurysmal arm, thus prevent aneurysm rupture.
But aneurysmally to come in every shape, use turn filling not exclusively, cause aneurysm to be led to again, excessively filling causes aneurysm rupture, and Aneurysmal neck given prominence to by turn affects parent artery blood flow.Along with the development of interventional technique, the appearance of support secondary spring circle thromboembolism entocranial artery technology, is released in tumor neck place by support, retracting spring circle in aneurysm cavity, props up in the arteries be placed in aneurysm, turn can be stoped to give prominence to aneurysm.
Chinese patent literature CN201320036422.5, at on 01 24th, 2013 applying date, patent name is " intracranial self-expanding stage peritoneum braided support ", disclose a kind of intracranial self-expanding stage peritoneum braided support, comprise braided support, it is characterized in that being provided with support overlay film, described braided support be B alloy wire two ends respectively by one end to the other end by axis and the mutual crossed loops of radial direction around and the net tubular bracket of working out that circulates, cylindrical in the middle of establishment support, two ends flare, make to form closed-loop structure between the mesh of braided support and mesh, add the radial support power at two ends, the B alloy wire of the both ends of the surface of braided support is curved, avoid puncturing intracranial vessel, the cylindrical surface of braided support is covered with support peritoneum, blood flow is avoided to impact intracranial angioma neck, avoid the filling turn of aneurysm tumor intracavity outstanding simultaneously and block arteries, reach and accelerate inner membrance growth rate, make the effect of aneurysm complete obturation quickly.
This overlay film frame is applicable to the aneurysm for the treatment of huge, the wide neck of intracranial or fusiformis, but is difficult to send into intracranial target for the parent artery of some furcations or the opening parent artery close to bifurcated.
Reconstructing blood vessel device is one of focus of current intracranial aneurysm apparatus research and development, in aneurysm, the forming part of tumor neck is the position that parent artery is constructed defect and local hemodynamic conflict and concentrated the most, therefore, fine and close filling tumor neck, recovers the integrity of local parent artery, be reparation parent artery, treat aneurysmal prerequisite and basis, but fine and close filling tumor neck selects turn usually in prior art, its Coil embolization is very fine and close, easily causes aneurysm rupture; In addition, aneurysm is the result of parent artery pathological changes, repairs parent artery and contributes to reducing aneurysm recurrence.
In sum, need a kind of promotion thrombosis badly, compactness filling tumor neck, slow down blood flow velocity in aneurysm, hemodynamics in aneurysm is changed, reduces regional flow to the impact of tumor wall, reinvent parent artery, strengthen, repair the Aneurysmal neck reconstructing device of local parent artery, and yet there are no report about this Aneurysmal neck reconstructing device.
Summary of the invention
The object of the invention is for deficiency of the prior art, there is provided a kind of and promote thrombosis, compactness filling tumor neck, slow down blood flow velocity in aneurysm, hemodynamics in aneurysm is changed, reduce regional flow to the impact of tumor wall, reinvent parent artery, strengthen, repair the Aneurysmal neck reconstructing device of local parent artery.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of intracranial aneurysm neck reconstructing device, described tumor neck reconstructing device comprises reconstructing device body, seal wire, outer sheath; Described reconstructing device body is by having the tinsel of shape memory effect or having elastomeric macromolecule silk material and be woven into mesh, and its mesh form is Pedicellus et Pericarpium Trapae shape; Described mesh is that waveform is wound around; Be hollow out stereochemical structure under described reconstructing device body deployed condition; Described reconstructing device body distal end is provided with head end developing block, and described reconstructing device body middle-end is provided with middle-end developing block; Described reconstructing device body distal end ovalize, the near-end of described reconstructing device body draws in downwards and is fixed on seal wire; Described seal wire is positioned at outer sheath; Described seal wire and reconstructing device body junction are provided with frees a little; The other end of described seal wire connects reliever.
Described mesh lateral evagination, inner side concaves.
Described reconstructing device body proximal end expands outwardly gradually to reconstructing device body distal end.
Described reconstructing device body is in " infundibulate ", and its lower end can upwards be recessed into " arc ".
The invention has the advantages that:
1, a kind of intracranial aneurysm neck reconstructing device of the present invention, by implanting reconstructing device body, slow down blood flow velocity in aneurysm, hemodynamics in aneurysm is changed, reduce regional flow to the impact of tumor wall, the aneurysmal relapse rate of obvious reduction, promotes the dissection healing of tumor neck;
2, by implanting reconstructing device body, strengthening, repairing local parent artery, impelling the physiological structure recovering aneurysm normal portions, realize the reconstruction that pathological changes parent artery is repaired;
3, the fibrocyte that reconstructing device body stimulates reconstructing device body to implant in section arterial wall after implanting synthesizes, secretion collagen fiber, obvious repairing, invigoration effect is had to local parent artery, support force is increased to the not yet section of implantation cell simultaneously, be conducive to repairing local parent artery defect, stop aneurysmal recurrence;
4, reconstructing device body promotes thrombosis, compared with Coil embolization, can reduce turn consumption, decreases in art and causes aneurysm rupture owing to excessively clogging;
5, select regulatable infundibulate reconstructing device body, be applicable to furcation parent artery and single channel parent artery;
6, adopting head end to show developing block and middle-end developing block can the shape of visual control reconstructing device body.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of intracranial aneurysm neck reconstructing device structural representation of the present invention.
Accompanying drawing 2 is the structural representation that a kind of intracranial aneurysm neck reconstructing device of the present invention is placed in furcation parent artery.
Accompanying drawing 3 is the structural representations under a kind of intracranial reconstructing device of the present invention is placed in single channel parent artery state.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention provided by the invention is elaborated.
The Reference numeral related in accompanying drawing and ingredient as follows:
1. reconstructing device body 11. mesh
12. head end developing block 13. middle-end developing block
2. seal wire 3. outer sheath
4. free a little 5. relievers
6. aneurysm 7. parent artery
Embodiment 1
For convenience of description, below describe and employ term " far-end " and " near-end ", wherein far-end is from the one end away from aneurysm, and near-end is from the one end close to aneurysm.
Please refer to Fig. 1, Fig. 1 is a kind of intracranial aneurysm neck reconstructing device structural representation of the present invention.A kind of intracranial aneurysm neck reconstructing device, described tumor neck reconstructing device comprises reconstructing device body 1, seal wire 2, outer sheath 3; Described reconstructing device body 1 is by having the tinsel of shape memory effect or having elastomeric macromolecule silk material and be woven into mesh, and its mesh 11 shape is rhombus, whole mesh 11 lateral evagination, and inner side concaves, and is closed-loop structure between mesh 11; Be hollow out stereochemical structure under described reconstructing device body 1 deployed condition, described reconstructing device body 1 near-end expands outwardly gradually to reconstructing device body 1 far-end; Described reconstructing device body 1 far-end is provided with head end developing block 12, and described reconstructing device body 1 middle-end is provided with middle-end developing block 13; Described reconstructing device body 1 far-end ovalize, the near-end of described reconstructing device body 1 draws in downwards and is fixed on seal wire 2; Described seal wire 2 is positioned at outer sheath 3; Described seal wire 2 and reconstructing device body 1 junction are provided with frees a little 4; The other end of described seal wire 2 connects reliever 5.
Please refer to Fig. 2, Fig. 2 is the structural representation that a kind of intracranial kind Aneurysmal neck reconstructing device of the present invention is placed in furcation parent artery.When described reconstructing device body 1 is placed in furcation aneurysm, its reconstructing device body 1 is arranged in tumor chamber, whole reconstructing device body 1 is in " infundibulate ", and reconstructing device body 1 near-end draws in downwards in a bit, and parent artery 7 inwall of reconstructing device body 1 proximal side and furcation is fitted.
Please refer to Fig. 3, Fig. 3 is the structural representation that a kind of intracranial reconstructing device of the present invention is placed in single channel parent artery.When described reconstructing device body 1 is placed in single channel parent artery 7, whole reconstructing device body 1 is arranged in tumor chamber, and reconstructing device body 1 lower end is upwards recessed into " arc ", and middle-end developing block 13 and tumor neck are fitted.
It should be noted that: described reconstructing device body 1 is woven into mesh by multi-filament material, has good dilatancy, superior coverage rate; Described reconstructing device body 1 is woven into the mesh 11 of " rhombus " shape, and when its reconstructing device body 1 launches, axial shortening rate is low; Described reconstructing device body 1 selects the effect of shape memory or elastomeric macromolecular material, has good elastic reaction; Adopt waveform canoe, reconstructing device body 1 in the deployed state time, radial support power is good, is not easy distortion, ensures that reconstructing device body 1 and aneurysm 6 inwall fit tightly; Concave inside the mesh 11 lateral evagination of described reconstructing device body 1, reconstructing device body 1 permeability is good, and blood easily flows in reconstructing device body 1, reduces regional flow to the impact of tumor neck; And the blood in reconstructing device body 1 is not easy to flow out thus formation thrombosis, fine and close filling tumor neck; Arrange between described mesh 11 and closely can obviously slow down blood flow in aneurysm 6, reduce eddy current and the percussion in aneurysm 6 tumor chamber, after certain hour, Excessive intimal rises to climbs completely whole reconstructing device body 1 surface, finally closes aneurysm 6 completely; Described reconstructing device body 1 implants the fibrocyte synthesis in rear stimulation reconstructing device body 1 section of implantation arterial wall, secretion collagen fiber, obvious repairing, invigoration effect is had to local parent artery 7, support force is increased to the not yet section of implantation cell simultaneously, be conducive to repairing local parent artery 7 defect, stop the recurrence of aneurysm 6.
Head end developing block 12 and the middle-end developing block 13 of described reconstructing device body 1 have location indicative function in a state of use, size can be launched by visual control reconstructing device body 1 by head end developing block 12 and middle-end developing block 13, judge whether to fit with tumor neck inwall; When aneurysm 6 is positioned at parent artery 7 close to bifurcated of the parent artery of furcation or opening, release reconstructing device body 1 is infundibulate, parent artery 7 inwall of reconstructing device body 1 side and furcation is fitted, when aneurysm 6 is positioned at single pass parent artery 7, release reconstructing device body 1 lower end is upwards recessed into " arc ", and the position of middle-end developing block 13 and tumor neck are fitted, can prevent aneurysm 6 from giving prominence to downwards, affect the mobile performance of parent artery 7, or avoid the aneurysm 6 outstanding thrombosis blocking parent artery 7 formed downwards.
Described reliever 5 positive pole is connected on the exposed area of delivery guidewire 2 metal of reconstructing device body 1, and negative pole connects with the subcutaneous draw point of freeing a little, the adjustment current/voltage of reliever 5 and time, and reconstructing device body 1 a little 4 to be freed freeing.
A kind of intracranial aneurysm neck reconstructing device using method of the present invention is: first by angiography determination intracranial aneurysm 6 position, microtubular is super choose position after, reconstructing device body 1 is delivered in aneurysm 6 through microtubular, determines reconstructing device body 1 position by head end developing block 12.Period, reconstructing device body 1 was positioned at outer sheath 3 always, then withdraw outer sheath 3 and discharge reconstructing device body 1, due to the shape memory effect of the metal of shape memory or the elastic reaction of high resiliency molecular material, reconstructing device body 1 is transformed into expanded position by the intrinsic radial support power of material.Be expanded to middle-end developing block 13 to fit with aneurysm neck, if when being used for the treatment of the aneurysm of furcation, release reconstructing device body 1 to infundibulate, makes near-end slightly charge into aneurysm 6 as shown in Figure 1; If during tremulous pulse for single pass year tumor, according to aneurysm 6 form and position release reconstructing device body, and middle-end developing block overlapped with aneurysm neck, seal wire 2 pushed forward, makes near-end fixing point charge in aneurysm 6 as shown in Figure 2.A little free reconstructing device body 1 finally by freeing, seal wire 2 and outer sheath 3 are withdrawn from external.
A kind of intracranial aneurysm neck reconstructing device of the present invention, by implanting reconstructing device body 1, slow down blood flow velocity in aneurysm 6, hemodynamics in aneurysm 6 is changed, reduce regional flow to the impact of tumor wall, the relapse rate of obvious reduction aneurysm 6, promotes the dissection healing of tumor neck; By implanting reconstructing device body 1, strengthening, repairing local parent artery 7, impelling the physiological structure recovering parent artery 7 normal portions, realize the reconstruction that pathological changes parent artery 7 is repaired; Reconstructing device body 1 implants the fibrocyte synthesis in rear stimulation reconstructing device body implantation section arterial wall, secretion collagen fiber, obvious repairing, invigoration effect is had to local parent artery 7, support force is increased to the not yet section of implantation cell simultaneously, be conducive to repairing local parent artery 7 defect, stop aneurysmal recurrence; Reconstructing device body 1 promotes thrombosis, compared with Coil embolization, can reduce turn consumption, decreases in art and causes aneurysm rupture owing to excessively clogging; Select regulatable infundibulate reconstructing device body 1, be applicable to parent artery 7 and single channel parent artery 7; Adopting head end to show developing block 12 and middle-end developing block 13 can the shape of visual control reconstructing device body.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (4)
1. an intracranial aneurysm neck reconstructing device, is characterized in that, described tumor neck reconstructing device comprises reconstructing device body, seal wire, outer sheath; Described reconstructing device body is by having the tinsel of shape memory effect or having elastomeric macromolecule silk material and be woven into mesh, and its mesh form is Pedicellus et Pericarpium Trapae shape; Described mesh is that waveform is wound around; Be hollow out stereochemical structure under described reconstructing device body deployed condition; Described reconstructing device body distal end is provided with head end developing block, and described reconstructing device body middle-end is provided with middle-end developing block; Described reconstructing device body distal end ovalize, the near-end of described reconstructing device body draws in downwards and is fixed on seal wire; Described seal wire is positioned at outer sheath; Described seal wire and reconstructing device body junction are provided with frees a little; The other end of described seal wire connects reliever.
2. tumor neck reconstructing device according to claim 1, is characterized in that, described mesh lateral evagination, inner side concaves.
3. tumor neck reconstructing device according to claim 1, is characterized in that, described reconstructing device body proximal end expands outwardly gradually to reconstructing device body distal end.
4. tumor neck reconstructing device according to claim 1, is characterized in that, described reconstructing device body is in " infundibulate ", and its lower end can upwards be recessed into " arc ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179045.4A CN104771200B (en) | 2015-04-15 | 2015-04-15 | Intracranial aneurysm neck reconstruction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179045.4A CN104771200B (en) | 2015-04-15 | 2015-04-15 | Intracranial aneurysm neck reconstruction device |
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| CN104771200A true CN104771200A (en) | 2015-07-15 |
| CN104771200B CN104771200B (en) | 2017-05-24 |
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| CN201510179045.4A Expired - Fee Related CN104771200B (en) | 2015-04-15 | 2015-04-15 | Intracranial aneurysm neck reconstruction device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108697414A (en) * | 2015-12-15 | 2018-10-23 | 维瓦舒尔医疗设备有限公司 | Utilize the arteriotomy provision for sealing that advantageous pressure distribution is realized with slit shoe |
| CN110507380A (en) * | 2018-05-22 | 2019-11-29 | 黄清海 | A kind of intracranial aneurysm auxiliary embolization device |
| US11478235B2 (en) | 2014-12-15 | 2022-10-25 | Vivasure Medical Limited | Closure apparatus with flexible sealable member and flexible support member |
| CN116831679A (en) * | 2023-09-02 | 2023-10-03 | 杭州亿科医疗科技有限公司 | Aneurysm vortex device easy to release |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11478235B2 (en) | 2014-12-15 | 2022-10-25 | Vivasure Medical Limited | Closure apparatus with flexible sealable member and flexible support member |
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| CN110507380A (en) * | 2018-05-22 | 2019-11-29 | 黄清海 | A kind of intracranial aneurysm auxiliary embolization device |
| CN116831679A (en) * | 2023-09-02 | 2023-10-03 | 杭州亿科医疗科技有限公司 | Aneurysm vortex device easy to release |
| CN116831679B (en) * | 2023-09-02 | 2023-11-14 | 杭州亿科医疗科技有限公司 | Aneurysm vortex device easy to release |
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| Publication number | Publication date |
|---|---|
| CN104771200B (en) | 2017-05-24 |
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