CN108272488A - A kind of artery, which is arrested, takes bolt holder and thrombus withdrawing device - Google Patents
A kind of artery, which is arrested, takes bolt holder and thrombus withdrawing device Download PDFInfo
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- CN108272488A CN108272488A CN201810310535.7A CN201810310535A CN108272488A CN 108272488 A CN108272488 A CN 108272488A CN 201810310535 A CN201810310535 A CN 201810310535A CN 108272488 A CN108272488 A CN 108272488A
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- rack body
- bolt holder
- artery
- arrested
- proximal end
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 45
- 210000001367 artery Anatomy 0.000 title claims abstract description 34
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 11
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000004393 prognosis Methods 0.000 abstract 1
- 208000006011 Stroke Diseases 0.000 description 8
- 210000004204 blood vessel Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000002792 vascular Effects 0.000 description 6
- 230000003446 memory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 206010008190 Cerebrovascular accident Diseases 0.000 description 4
- 208000032382 Ischaemic stroke Diseases 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 230000002537 thrombolytic effect Effects 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 230000002490 cerebral effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- 102000009123 Fibrin Human genes 0.000 description 1
- 108010073385 Fibrin Proteins 0.000 description 1
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 1
- 241000549343 Myadestes Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000001435 Thromboembolism Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000001772 blood platelet Anatomy 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 229950003499 fibrin Drugs 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000002008 hemorrhagic effect Effects 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 208000037922 refractory disease Diseases 0.000 description 1
- 230000000250 revascularization Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000013151 thrombectomy Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22035—Gripping instruments, e.g. forceps, for removing or smashing calculi for retrieving or repositioning foreign objects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22094—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for crossing total occlusions, i.e. piercing
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention belongs to the field of medical instrument technology, it is arrested more particularly to a kind of artery and takes bolt holder and thrombus withdrawing device, it includes the net tubular stent body being formed by connecting by multiple mesh wherein to take bolt holder, the rack body includes integral molding and the proximal end being connected smoothly, intermediate body portion and distal end, rack body folds under external force, external force discharges after eliminating to be restored, in subtriangular after the tiling expansion of rack body proximal end, in approximate rectangular after intermediate body portion tiling expansion, it is in wind-cowl structure after the tiling expansion of distal end, proximal end is in nearly small long-range pyramidal structure to the rack body in the released state, intermediate body portions are divided into cylindrical structure, distal end is the closed net bag-shaped structure of tail end；Thrombus withdrawing device includes that artery arrests and takes bolt holder, push-and-pull seal wire, and rack body is recyclable to taking in bolt microtubular under push-and-pull seal wire effect.The anti-tampon escape of energy of the invention, improves thrombus and arrests rate, and then improve clinical prognosis, improve patients ' life quality.
Description
Technical field
The invention belongs to the field of medical instrument technology, is arrested more particularly to a kind of artery and bolt holder and thrombus is taken to take out dress
It sets.
Background technology
Thrombus be in pathological conditions blood on the endocardial of cardiovascular system or the surface in heart exterior blood vessel somewhere
It is formed by sludged blood, is generally made of by different proportion red blood cell, fibrin, blood platelet, leucocyte etc..By in the cerebrovascular
Thrombus caused by ishemic stroke be the refractory disease for seriously endangering human health and life security, according to statistics, China is every
Patient with cerebral apoplexy occurs year up to 3,000,000, annual stroke patient dead 1,200,000, the incidence of China's cerebral apoplexy is just with annual at present
8.7% speed rises, and China becomes first cause every year because the number of Stroke Death has been more than tumour and angiocardiopathy
Dead reason.Artery and vein thrombolysis is the conventional method of acute ischemic stroke treatment, but this method is for the requirement of therapeutic time window
Height, it is inscribed treated to be strict with patient idiopathy 4.5 hours, and so short thrombolysis time window causes only less than 10%
Patient can obtain effective thromboembolism treatment, also have many restrictions to the selection of patient, some patient in time window
It is left out, and low for the vessel occlusion induced Acute Ischemic Stroke recanalization rate of most serious, drug thrombolysis
For substantially invalid more than the thrombus of 8mm.Therefore, effect is poor after treatment, stays disability more, and life is rough to take care of oneself into acute ischemia
Property patients with cerebral apoplexy and its family must face the problem of.In order to solve the problems, such as said medicine thrombolysis, mechanically cutting thrombus
The method of (Mechanical Thrombectomy) has become research hotspot in recent years.For acute caused by vessel occlusion
Ischemic Stroke revascularization has satisfactory clinical effectiveness.Artery machinery take pin device because have the advantages that it is many and
Obtain extensive concern：Quickly lead to again, lower hemorrhagic conversion rate and stroke interventional time window can extend.At present
The patient's time window screened based on image is extended to 16 hours by the researchs of DEFUSE 3, and DAWN researchs will even be based on image and screen
Patient's time window extended 24 hours, newest publication《U.S. AHA/ASA acute apoplexy Early postoperative management guides》With
The evidence of highest level recommends 6-16 hours takes bolt to treat, and is recommended 6-24 hours with the evidence of B-R ranks and bolt is taken to control
It treats.
Currently, U.S. FDA approved Merci takes bolt device（2004）With Penumbra systems（2008）
Solitaire blood flow reconstructing apparatus（2012）Pin device is taken with Trevo（2012）Machinery for acute ischemic stroke takes
Bolt is treated.But at present for machinery takes pin device, problems are still faced during taking bolt：As taken pin device mostly
Design development point is less, and the contact situation for taking pin device with thrombus can neither be clearly observed during taking bolt, can not be defined
The position of thrombus and form cause thrombus to arrest rate low.And existing apparatus model is fixed, stent mesh size and composition holder
Nitinol alloy wire diameter between different model and in the same holder be also it is changeless, may result in radial direction in this way
Support force is fixed, and does not adapt to the specific requirement at cerebrovascular system blood vessel different-diameter and different anatomic position, to cause
Take bolt failure and damage vascular wall.And the emphasis and difficult point of the therapy are that used in the surgical procedure and take bolt instrument to blood
The crawl of bolt captures and how to avoid the damage in operating process for vascular wall, because the damage of vascular wall can lead to blood vessel
Occlude again, to keep clinical outcome bad.
Invention content
The technical problem to be solved in the present invention is to overcome above-mentioned the deficiencies in the prior art, and one kind is provided and anti-can be stopped blooding
Bolt is escaped and thrombus arrests rate height, and the good artery of clinical outcome, which is arrested, takes bolt holder and thrombus withdrawing device.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
It designs a kind of artery and arrests and take bolt holder, include the net tubular stent body being formed by connecting by multiple mesh, the holder sheet
Body includes integral molding and the proximal end, intermediate body portion and the distal end that are connected smoothly, and rack body is under external force
It folds, discharges and restore after external force elimination, be in subtriangular after the rack body proximal end tiling expansion, intermediate body portion is flat
It is in approximate rectangular after drawout, is in wind-cowl structure after the tiling expansion of distal end, proximal end is in close to the rack body in the released state
Small long-range pyramidal structure, intermediate body portions are divided into cylindrical structure, are distally the closed net bag-shaped structure of tail end.
Preferably, in above-mentioned artery arrests and takes bolt holder, the mesh on the rack body is gradual by proximate
Become larger, material therefor is tapered by proximate diameter.
Preferably, in above-mentioned artery arrests and takes bolt holder, along the mesh, by the proximal end of rack body to distal end successively
Multiple developing marks are laid with, make it that integrally there is developability.
Preferably, in above-mentioned artery arrests and takes bolt holder, each developing mark is wrong in continuous or interval along the mesh
Bit distribution.
Preferably, in above-mentioned artery arrests and takes bolt holder, the rack body is the metal with shape memory effect
Material is formed with elastomeric high molecular material heat treatment shaping.
Preferably, in above-mentioned artery arrests and takes bolt holder, the rack body is the NiTi with shape memory effect
B alloy wire is made.
Preferably, it is in fusiformis in above-mentioned artery arrests and takes bolt holder, at the proximal openings of the rack body.
In addition a kind of thrombus withdrawing device is also designed, including any one of them artery as above arrests and takes bolt holder, wherein
The proximal end of rack body is connected with push-and-pull seal wire, and rack body is recyclable to taking bolt microtubular under push-and-pull seal wire effect when work
It is interior.
In above-mentioned technical proposal, wherein " distal end " and " proximal end " is from the direction of operative doctor, wherein " distal end " is
One end far from operative doctor, correspondingly, " proximal end " is proximate to one end of operative doctor.
The present invention operation principle be：
Thrombus withdrawing device of the present invention carries out discharging exhibition when bolt being taken to operate by taking bolt microtubular to be delivered at thrombus when work
It opens, thrombus is lived by mesh inlay card, recycles a part of holder later, make holder that thrombus more be firmly fixed, and combine remote
It holds net bag-shaped to protect structure, tightly wales thrombus and prevent its escape, take bolt holder under negative-pressure ward together with microtubular later
It takes out together.
The advantageous effects of technical solution of the present invention are：
1, in structure, artery of the present invention, which is arrested, takes bolt holder and thrombus withdrawing device by discharging the distal end of rack body
It is designed as the closed net bag-shaped structure of tail end under state, and is in wind-cowl structure after the distal end tiling expansion, the distal end tiling exhibition
It is big to open rear nearer end area, is in distally that net bag-shaped protects structure after release, tightly waling thrombus can anti-tampon escape.Thus
Thrombus arrests rate height, and clinical outcome is good.
2, in structure, the present invention is by the way that the mesh of rack body to be designed as being become larger by proximate, material
Diameter is tapered, and keeps the surface radial support power of rack body different location along longitudinal direction adjustable, to be suitable for different-diameter
Blood vessel takes bolt.It is thus widely used, is conducive to promotion and implementation.Wherein nearer end mesh in distal end is big, and material diameter is tapered, can
So that the radial support power of rack far end weakens, to avoid damage to vascular wall as possible, thus clinical outcome is good.
3, in structure, the present invention is on taking bolt holder by proximal end to a certain number of developing marks of distal end whole installation
Point efficiently solves the contact situation that can neither be clearly observed during taking bolt and take pin device with thrombus, and cannot define
The technical issues of position of thrombus and form, arrests rate to further improve thrombus, thus clinical outcome is good.
4, in structure, rack body contained by the present invention is preferably that the nitinol alloy wire with shape memory effect is made,
It is easy to purchase, it is convenient to carry out.And rack body distal end is thinner than the nitinol alloy wire diameter of proximal end, wherein distal end nitinol alloy wire
Diameter is thin, can be with further such that the radial support power of rack far end weakens, to effectively avoid damage to vascular wall, thus clinic
Outcome is good.
Description of the drawings
Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is that artery of the present invention arrests the side structure schematic view for taking bolt holder（Whole tiling unfolded state）；
Fig. 2 is the A of rack body proximal end shown in FIG. 1 and intermediate body portion to structural schematic diagram（Tile unfolded state）；
Fig. 3 is that artery of the present invention arrests the structural schematic diagram for taking bolt holder（Release conditions after whole curling, shaping）；
Fig. 4 is the structural schematic diagram of thrombus withdrawing device of the present invention（Rack body is release conditions）；
Fig. 5 is the structural schematic diagram of thrombus withdrawing device of the present invention（Rack body is collapse state）；
Fig. 6 is the schematic diagram that thrombus withdrawing device of the present invention takes bolt process status one；
Fig. 7 is the schematic diagram that thrombus withdrawing device of the present invention takes bolt process status two；
Serial number in figure：100, rack body；
101, proximal end；
102, distal end；
103, at proximal openings；
104, mesh；
105, intermediate body portion；
200, developing mark；
300, seal wire is pushed and pulled；
400, bolt microtubular is taken；
500, blood vessel；
600, thrombus.
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, technical solution in the embodiment of the present invention is clearly completely described, and is shown
Right described embodiment is only the schematical part specific implementation mode of the present invention, is not limited to the scope of the present invention,
The equivalent variations and modification that any those skilled in the art is made under the premise of not departing from present inventive concept and principle,
The scope of protection of the invention should be belonged to.
Embodiment one：
Referring to Fig. 1-3, in figure, artery of the present invention, which is arrested, takes bolt holder, includes the webmaster shape branch being formed by connecting by multiple mesh 104
Frame ontology 100, the rack body include integral molding and be connected smoothly proximal end 101, intermediate body portion 105 and remote
End 102, rack body folds under external force, and external force discharges after eliminating to be restored, in the released state the rack body proximal end
In nearly small long-range pyramidal structure, intermediate body portions are divided into cylindrical structure, are distally the closed net bag-shaped structure of tail end.Holder
Proximal end is in subtriangular after ontology tiling expansion, and in approximate rectangular after intermediate body portion tiling expansion, and distal end is in blast cap
Type structure.103 be in fusiformis at the proximal openings of rack body.
Rack body is metal material with shape memory effect or with the heat treatment of elastomeric high molecular material
It shapes, for example is made using the nitinol alloy wire with shape memory effect.It is specific when making, by rack body by
Tiled state is whole along horizontal longitudinal in symmetrical curling, last heat treatment shaping and formed.
The present invention is somebody's turn to do by the way that the distal end of rack body is designed as the closed net bag-shaped structure of tail end in the released state
It is in wind-cowl structure after the tiling expansion of distal end, nearer end area is big after the distal end tiling expansion, is in distally blanket net shape knot after release
Structure, can anti-tampon escape.Thus thrombus arrests rate height, and then clinical outcome is good.
Embodiment two：
The present embodiment figure is not drawn into.The present embodiment artery, which is arrested, takes bolt holder similar to one structure of embodiment, phase in the two structure
It is no longer repeated herein with part, difference lies in：The present embodiment artery arrest take mesh on rack body contained by bolt holder by
Proximate becomes larger, and material therefor is tapered by proximate diameter.
Relative to embodiment one, the present embodiment is by the way that the mesh of rack body to be designed as gradually being become by proximate
Greatly, material therefor is tapered by proximate diameter, makes the surface radial support power of rack body different location along longitudinal direction
It is adjustable, to the removal of thromboses suitable for different-diameter blood vessel, it is particularly suitable for thin vessels and takes bolt.It is thus widely used, is conducive to
Promotion and implementation.Also, wherein nearer end mesh in distal end is big, and material is tapered by proximate diameter, it is also possible that branch
The radial support power of frame distal end weakens, and to avoid damage to vascular wall as possible, thus clinical outcome is good.
Embodiment three：
Referring to Fig. 1-3, in figure, the present embodiment artery, which is arrested, takes bolt holder similar to one structure of embodiment, identical number generation in figure
Justice of expressing the meaning is identical, no longer repeats herein, difference lies in：The present embodiment artery, which is arrested, takes bolt holder along each mesh 104, by holder
The proximal end of ontology is laid with multiple developing marks 200 successively to distal end, it is made integrally to have developability.Each developing mark is described in
Mesh is dislocatedly distributed in continuous or interval.
Relative to embodiment one, the present embodiment is on taking bolt holder by proximal end to a certain number of developments of distal end whole installation
Mark point efficiently solves the contact situation that can neither be clearly observed during taking bolt and take pin device with thrombus, and cannot
The technical issues of specifying position and the form of thrombus arrests rate to further improve thrombus.
Example IV~six：：
Referring to Fig. 4-5, in figure, four~six thrombus withdrawing device of the present embodiment respectively includes dynamic described in embodiment one~tri-
Arteries and veins, which is arrested, to be taken bolt holder, push-and-pull seal wire 300 and takes bolt microtubular 400 etc..The proximal end of rack body 100 is connected with push-and-pull seal wire
300, push-and-pull seal wire surface, which is set with, takes bolt microtubular 400, and rack body is recyclable under push-and-pull seal wire effect, and to taking, bolt is micro- to lead
In pipe.It is arrested about contained artery in the present embodiment four~six and the concrete structure of bolt holder is taken to distinguish detailed in Example one~tri-,
It no longer repeats herein.
When specific works, referring to Fig. 6, microtubular is transported to along blood vessel 500 at 600 position of thrombus by micro-wire, micro-
Catheter tip is located at the distal side of thrombus, bolt holder will be taken to be delivered to thrombus position by microtubular when which works.Ginseng
See Fig. 7, bolt holder will be taken to be delivered to its distal end by microtubular, withdraws microtubular and withstanding later and take the outer operating side of bolt stake body
Prevent it from dropping back together movement with microtubular so as to take bolt holder to be discharged just in thrombus site and be unfolded, complete inlay card lives blood
Bolt.A part of holder is recycled later, makes holder that thrombus more be firmly fixed, and is protected structure in conjunction with distal end net bag-shaped, is tightly bound round
Firmly thrombus and its escape is prevented, bolt holder is taken to be taken out together with microtubular under negative-pressure ward later.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and its
The difference of its embodiment, identical similar part is cross-referenced between each embodiment.
To the above description of disclosed embodiment, those skilled in the art is enable to realize or use the present invention.To these
The many places modification of embodiment is apparent to those skilled in the art, and the general principles defined herein can be
Under the premise of the spirit or scope for not departing from invention, realize in other embodiments.Therefore, the present invention will be not limited to herein
These shown embodiments, and it is to fit to the widest range consistent with principles disclosed herein and features of novelty.
Claims (8)
- Include the net tubular stent body being formed by connecting by multiple mesh, the rack body 1. a kind of artery, which is arrested, takes bolt holder Including proximal end, intermediate body portion and the distal end for being integrally formed and being connected smoothly, rack body folds under external force, External force discharges after eliminating to be restored, it is characterized in that：It is in subtriangular, intermediate body portions after the rack body proximal end tiling expansion It is in wind-cowl structure in approximate rectangular, after the tiling expansion of distal end after point tiling expansion, rack body proximal end in the released state In nearly small long-range pyramidal structure, intermediate body portions are divided into cylindrical structure, are distally the closed net bag-shaped structure of tail end.
- 2. artery according to claim 1, which is arrested, takes bolt holder, it is characterized in that：Mesh on the rack body is by proximal end To distally becoming larger, material therefor is tapered by proximate diameter.
- 3. artery according to claim 1, which is arrested, takes bolt holder, it is characterized in that：Along the mesh, by the close of rack body It holds and is distally laid with multiple developing marks successively.
- 4. artery according to claim 3, which is arrested, takes bolt holder, it is characterized in that：Each developing mark is along the mesh in continuous Or interval is dislocatedly distributed.
- 5. artery according to claim 1, which is arrested, takes bolt holder, it is characterized in that：The rack body is with shape memory The metal material of effect is formed with elastomeric high molecular material heat treatment shaping.
- 6. artery according to claim 5, which is arrested, takes bolt holder, it is characterized in that：The rack body is with shape memory The nitinol alloy wire of effect is made.
- 7. artery according to claim 1, which is arrested, takes bolt holder, it is characterized in that：It is at the proximal openings of the rack body Fusiformis.
- 8. a kind of thrombus withdrawing device, including artery as described in any one of claim 1 to 7 arrest and take bolt holder, wherein propping up The proximal end of frame ontology is connected with push-and-pull seal wire, and rack body is recyclable to taking bolt microtubular under push-and-pull seal wire effect when work It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310535.7A CN108272488A (en) | 2018-04-09 | 2018-04-09 | A kind of artery, which is arrested, takes bolt holder and thrombus withdrawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310535.7A CN108272488A (en) | 2018-04-09 | 2018-04-09 | A kind of artery, which is arrested, takes bolt holder and thrombus withdrawing device |
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| CN108272488A true CN108272488A (en) | 2018-07-13 |
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| CN201810310535.7A Pending CN108272488A (en) | 2018-04-09 | 2018-04-09 | A kind of artery, which is arrested, takes bolt holder and thrombus withdrawing device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567989A (en) * | 2019-01-30 | 2019-04-05 | 中国人民解放军陆军军医大学第附属医院 | Esophageal stents fixing line supplementary structure |
| CN110420046A (en) * | 2019-08-07 | 2019-11-08 | 苏州中天医疗器械科技有限公司 | The minimally invasive intervention thrombus removal equipment of one kind, application and its application method |
| CN111938747A (en) * | 2020-07-24 | 2020-11-17 | 上海璞慧医疗器械有限公司 | Bolt taking mechanism and conveying device |
| CN112043347A (en) * | 2020-09-16 | 2020-12-08 | 江苏暖阳医疗器械有限公司 | Integrated embolectomy support |
| CN113081169A (en) * | 2021-04-30 | 2021-07-09 | 齐聚医疗科技(上海)有限公司 | Intravascular device and vascular thrombus removal device |
| CN113974778A (en) * | 2021-11-30 | 2022-01-28 | 上海心玮医疗科技股份有限公司 | Support system for coiling type multi-section developing bolt taking |
| CN114191154A (en) * | 2022-02-18 | 2022-03-18 | 天津市环湖医院 | Integrated plug taking support with gradually-changed diameter |
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| CN115429386A (en) * | 2022-09-14 | 2022-12-06 | 上海英威思医疗科技有限公司 | Local open type thrombus taking support |
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Application publication date: 20180713 |