CN108670353A - A kind of tandem takes bolt holder and thrombus withdrawing device - Google Patents
A kind of tandem takes bolt holder and thrombus withdrawing device Download PDFInfo
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- CN108670353A CN108670353A CN201810311016.2A CN201810311016A CN108670353A CN 108670353 A CN108670353 A CN 108670353A CN 201810311016 A CN201810311016 A CN 201810311016A CN 108670353 A CN108670353 A CN 108670353A
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- bolt holder
- bolt
- holder
- rack body
- take
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 6
- 230000003446 memory effect Effects 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 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 4
- 229910001000 nickel titanium Inorganic materials 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
- 208000006011 Stroke Diseases 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 210000004204 blood vessel Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 5
- 239000008280 blood Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 206010008190 Cerebrovascular accident Diseases 0.000 description 4
- 208000032382 Ischaemic stroke Diseases 0.000 description 4
- 230000002537 thrombolytic effect Effects 0.000 description 4
- 230000002792 vascular 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
- 210000001367 artery Anatomy 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 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
- 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
- 238000011161 development Methods 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
- 230000002008 hemorrhagic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 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
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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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
- A61B17/22—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, more particularly to a kind of tandem takes bolt holder and thrombus withdrawing device, including taking bolt holder along the forward and backward of same axis tandem after release, it is forward and backward that take bolt holder include the net tubular stent body being formed by connecting by multiple mesh, rack body folds under external force, and external force discharges after eliminating to be restored；It includes being integrally formed and being connected smoothly proximally and distally to take rack body contained by bolt holder afterwards, and proximal end is in nearly small long-range pyramidal structure, the cylinder structure in distal end to the rack body in the released state；Before take the rack body contained by bolt holder to include being integrally formed and the proximal end, intermediate body portion and the distal end that are connected smoothly, 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, are distally the closed net bag-shaped structure of tail end；The whole internal diameter of bolt holder is taken after taking the entire outer diameter of bolt holder to be less than before under release conditions.The present invention effectively arrests thrombus and anti-tampon is escaped, and thrombus arrests rate height, and clinical outcome is good.
Description
Technical field
The invention belongs to the field of medical instrument technology, take bolt holder and thrombus to take out dress more particularly to a kind of tandem
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, causing thrombus to be arrested, rate is low and thrombus is escaped.And existing apparatus model is fixed, stent mesh size
And the diameter of the nitinol alloy wire of composition holder is between different model and in the same holder and changeless, thus
Radial support power can be caused to fix, do not adapt to the specific requirement at cerebrovascular system blood vessel different-diameter and different anatomic position,
To lead to 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 captures the crawl of thrombus and how to avoid the damage in operating process for vascular wall, because of the damage of vascular wall
It can lead to occluding again for blood vessel, 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 providing one kind can effectively grab
It catches thrombus and anti-tampon is escaped, arrest rate to improve thrombus, the good tandem of clinical outcome 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 tandem and takes bolt holder, including bolt holder is taken along same axis tandem after release, wherein forward and backward take
Bolt holder includes the net tubular stent body being formed by connecting by multiple mesh, and rack body folds under external force, external force
It discharges and restores after elimination；
It includes being integrally formed and being connected smoothly proximally and distally that rack body contained by bolt holder is taken after described, the holder
Body proximal end tiling is in subtriangular after being unfolded, and is in approximate rectangular after the tiling expansion of distal end, the rack body is in release conditions
Lower proximal end is in nearly small long-range pyramidal structure, the cylinder structure in distal end；
Taken before described rack body contained by bolt holder include be integrally formed and be connected smoothly proximal end, intermediate body portion and
Distally, after rack body proximal end tiling expansion in subtriangular, 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, in
Between main part be cylindrical structure, be distally the closed net bag-shaped structure of tail end；
The length of bolt holder is taken after taking the entire length of bolt holder to be less than or equal to before described；And in the released state, preceding to take bolt
The entire outer diameter of holder takes the whole internal diameter of bolt holder after being less than.
Preferably, in the released state, preceding that the mesh size on bolt holder is taken to be more than in above-mentioned tandem takes bolt holder
The mesh size on bolt holder is taken afterwards；Take bolt timbering material thin before taking bolt holder material therefor ratio after and.
Preferably, in above-mentioned tandem takes bolt holder, the mesh on bolt holder is taken along forward and backward, by rack body
Proximal end is laid with multiple developing marks successively to distal end.
Preferably, in above-mentioned tandem takes bolt holder, each developing mark is along the mesh in continuous or interval dislocation
Distribution.
Preferably, in above-mentioned tandem takes bolt holder, described forward and backward to take rack body contained by bolt holder be with shape
The metal material of shape memory effect is formed with elastomeric high molecular material heat treatment shaping.
Preferably, in above-mentioned tandem takes bolt holder, the forward and backward rack body is with shape memory effect
Nitinol alloy wire is made.
Preferably, in above-mentioned tandem takes bolt holder, the forward and backward proximal openings for taking rack body contained by bolt holder
Place is in fusiformis.
In addition, the present invention also designs a kind of thrombus withdrawing device, including any one of them tandem as above takes bolt holder,
In it is forward and backward take the proximal end of rack body contained by bolt holder to be connected separately with the first, second push-and-pull seal wire, wherein second push-and-pull seal wire
For hollow structure, the first push-and-pull seal wire is sleeved in the second push-and-pull seal wire hollow cavity, preceding to take rack body contained by bolt holder the
It is recyclable under one push-and-pull seal wire effect to be taken after in bolt rack body；It is forward and backward when work to take rack body contained by bolt holder
One, recyclable to taking in bolt microtubular under the second push-and-pull seal wire effect.
In above-mentioned technical proposal, wherein it is " preceding " and " rear " for from the direction of operative doctor, wherein close to attending physician
End is " rear ", correspondingly, being " preceding " far from nearly operative doctor end.
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, by taking bolt conduit to be delivered at thrombus when work, forward and backward series connection holder, which is located at, takes bolt to lead
In pipe, forward and backward series connection release expansion when carrying out that bolt is taken to operate, by preceding taking mesh inlay card on bolt holder to live thrombus, later will before
It is taken after taking bolt holder to pull in bolt holder, and the net bag-shaped of bolt rack far end is taken to protect structure before combining, tightly wale thrombus simultaneously
Its escape is prevented, bolt holder is taken to be taken out together with microtubular under negative-pressure ward later.
The advantageous effects of technical solution of the present invention are：
1, in structure, tandem of the present invention takes bolt holder and thrombus withdrawing device by using serial combination type front and back support,
And it will preceding take the remote design of bolt holder to be in wind-cowl structure after tiling expansion, and be the closed string bag of tail end under release conditions
Shape protects structure, tightly wale thrombus can the escape of anti-tampon, help smoothly to take bolt.Thus thrombus arrests rate height, and
Clinical outcome is good.
2, in structure, the present invention is by the released state, will preceding take the mesh size on bolt holder to be designed as being more than
Take the mesh size on bolt holder afterwards, i.e., after take bolt holder ratio before take mesh on bolt holder closeer, thrombus can be further prevented
Radially escape.It takes bolt timbering material thin before taking bolt holder material therefor ratio after and, different size can be made as needed
And model, i.e., different mesh sizes and material thickness take bolt holder, make to take the surface of bolt holder different location along longitudinal direction radial
Support force is adjustable, to take bolt suitable for different-diameter blood vessel, so being widely used, is conducive to promotion and implementation.Entire group simultaneously
It takes bolt holder to take bolt stent mesh big compared with after before closing holder, the ability of holder capture thrombus can be made to increase, and avoid damaging
Blood trouble tube wall, thus clinical outcome is good.
3, in structure, the present invention is integrally provided with a certain number of show on bolt holder in forward and backward take by proximal end to distal end
Shadow mark point so that combined type takes bolt holder integrally to develop, and efficiently solves clearly observe during taking bolt and takes bolt
Contact situation of the device with thrombus, and the technical issues of position and the form of thrombus cannot be specified, to further improve
Thrombus arrests rate, thus clinical 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 the structural schematic diagram that tandem of the present invention takes bolt holder（Release conditions）；
Fig. 2 be it is shown in FIG. 1 after take the structural schematic diagram of bolt holder（Tile unfolded state）；
Fig. 3 be it is shown in FIG. 1 before take the main structure diagram of bolt holder（Tile unfolded state）；
Fig. 4 be shown in Fig. 3 before take bolt holder proximal end and intermediate body portion A to structural schematic diagram；
Fig. 5 is the structural schematic diagram of thrombus withdrawing device of the present invention（Two stands ontology is release conditions）；
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；
Fig. 8 is the schematic diagram that thrombus withdrawing device of the present invention takes bolt process status three；
Serial number in figure：100, rack body；
101, proximal end；
102, distal end；
103, at proximal openings；
104, mesh；
200, rack body；
201, proximal end；
202, distal end；
203, at proximal openings；
204, mesh；
205, intermediate body portion；
300, developing mark；
400, the second push-and-pull seal wire；
500, bolt microtubular is taken；
600, the first push-and-pull seal wire；
800, blood vessel；
900, 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, in figure, tandem of the present invention takes bolt holder, including takes bolt along same the forward and backward of axis tandem after release
Holder, wherein front and back, to take bolt holder include the net tubular stent body 200,100 being formed by connecting by multiple mesh 204,104,
Rack body folds under external force, and external force discharges after eliminating to be restored.Before take the entire length of bolt holder to be less than or equal to after
Take the length of bolt holder；And in the released state, it is preceding take the entire outer diameter of bolt holder to be less than after take the whole internal diameter of bolt holder.
It includes being integrally formed and the proximal end 101 that is connected smoothly and remote that rack body 100 contained by bolt holder is taken after moreover,
End 102.Proximal end is in nearly small long-range pyramidal structure, the cylinder structure in distal end to the rack body in the released state.Before take bolt
Rack body 200 contained by holder includes proximal end 201, intermediate body portion 205 and the distal end for being integrally formed and being connected smoothly
202.Proximal end is in nearly small long-range pyramidal structure to the rack body in the released state, and intermediate body portions are divided into cylindrical structure,
Distal end is the closed net bag-shaped structure of tail end.
Referring to Fig. 2, in figure, after take the rack body proximal end of bolt holder to tile after expansion in subtriangular, distal end is tiled
In approximate rectangular after expansion.It is front and back that take at the proximal openings of rack body contained by bolt holder 103,203 be in fusiformis.
It is preceding to take after tiling expansion in rack body proximal end contained by bolt holder in subtriangular in figure referring to Fig. 3-4, it is intermediate
It is in approximate rectangular after main part tiling expansion, is in wind-cowl structure after the tiling expansion of distal end.After take holder sheet contained by bolt holder
Body is made by the nitinol alloy wire with shape memory effect.When specific making, by the rack body by tiled state
It is whole along horizontal longitudinal in symmetrical curling, last heat treatment shaping and formed.Likewise, take bolt holder before can refer to, after take bolt
Rack body contained by holder can also be by the Nitinol wire material with shape memory effect, by tiled state integral level
In symmetrical curling, last heat treatment shaping and formed.
The present invention is by using the forward and backward holder of serial combination type, and will preceding take the remote design of bolt holder is that tiling is unfolded
It is in wind-cowl structure afterwards, is that the closed net bag-shaped of tail end protects structure under release conditions, can be prevented to tightly wale thrombus
Thrombus is escaped, and helps smoothly to take bolt.Therefore thrombus arrests rate height, and clinical outcome is good.
Embodiment two：
Referring to Fig. 1-4, in figure, the present embodiment is similar to one structure of embodiment, and it is identical to represent meaning for identical number in figure, herein not
It repeats again, difference lies in：The mesh on bolt holder is taken after taking 204 size of mesh on bolt holder to be more than before the present embodiment is contained
104 sizes, and after take bolt holder material therefor ratio before take bolt timbering material thin.
Relative to embodiment one, the present embodiment is by the way that in the released state, the mesh size preceding taken on bolt holder is designed
For the mesh size for taking on bolt holder more than after, i.e., after take bolt holder ratio before take mesh on bolt holder closeer, can further prevent
Tampon is radially escaped.It takes bolt timbering material thin before taking bolt holder material therefor ratio after and, can be made as needed not
Same specification and model, i.e., different mesh sizes and material thickness take bolt holder, make to take the table of bolt holder different location along longitudinal direction
Face diameter is adjustable to support force, to take bolt suitable for different-diameter blood vessel.It is thus widely used, is conducive to promotion and implementation.Simultaneously
It takes bolt holder to take bolt stent mesh big earlier above after entire sectional shelf-unit, the ability of holder capture thrombus can be made to increase, and
Vascular wall is avoided damage to as possible, thus clinical outcome is good.
Embodiment three：
Referring to Fig. 1-4, in figure, the present embodiment is similar to one structure of embodiment, and it is identical to represent meaning for identical number in figure, herein not
It repeats again, difference lies in：The present embodiment takes mesh 104,204 described in bolt holder before and after, is laid successively to distal end by proximal end
There are multiple developing marks 300, a combination thereof formula is made to take bolt holder that integrally there is developability.And each developing mark 300 is along the net
Hole 104,204 is dislocatedly distributed in continuous or interval.
Relative to embodiment one, the present embodiment front and back by taking on bolt holder by proximal end to one fixed number of distal end whole installation
The developing mark point of amount so that combined type takes bolt holder integrally to develop, and efficiently solving can neither clearly see during taking bolt
The technical issues of examining the contact situation for taking pin device with thrombus, and position and the form of thrombus cannot be specified, to further
It improves thrombus and arrests rate, thus clinical outcome is good.
Example IV~six：
Referring to Fig. 5, in figure, four~six thrombus withdrawing device of the present embodiment respectively includes the series connection described in embodiment one~tri-
Formula takes bolt holder, wherein the forward and backward proximal end for taking rack body 200,100 contained by bolt holder is connected separately with the first, second push-and-pull
Seal wire 600,400, wherein the second push-and-pull seal wire 400 is hollow structure, the first push-and-pull seal wire 600 is sleeved on the second push-and-pull seal wire
In 400 hollow cavities.Before take rack body 200 contained by bolt holder recyclable to take bolt branch after in the case where the first push-and-pull seal wire 600 acts on
In frame ontology 100.The second 400 surface of push-and-pull seal wire, which is set with, simultaneously takes bolt microtubular 500, forward and backward to take holder contained by bolt holder
Ontology 200,100 is recyclable to taking in bolt conduit 500 in the case where the first, second push-and-pull seal wire 600,400 acts on.About the present embodiment
Contained tandem takes the concrete structure of bolt holder to distinguish detailed in Example one~tri- in four~six, no longer repeats herein.
When specific works, referring to Fig. 6, before device work, micro-wire will take bolt microtubular to be transported to blood along blood vessel 800
At 900 position of bolt, and bolt microtubular end is taken to be located at the distal side of thrombus, it is forward and backward to take bolt holder via taking bolt microtubular to convey
To taking bolt catheter tip.It referring to Fig. 7, then pulls back and takes bolt microtubular, and resist the first, second push-and-pull seal wire outer end facility to prevent
Bolt holder is taken to drop back together with microtubular so that preceding that bolt holder is taken to discharge expansion in thrombus site just, complete inlay card lives blood
Bolt.Referring to Fig. 8, bolt holder is taken before withdrawing later, is taken after making it into bolt holder, modular support is made more to be firmly fixed
Thrombus tightly wales thrombus and prevents its escape, take bolt holder later in conjunction with preceding taking the net bag-shaped of bolt rack far end to protect structure
It is taken out together with microtubular under negative-pressure ward.
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 this paper institutes
These embodiments of display, and it is to fit to the widest range consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a kind of tandem takes bolt holder, it is characterized in that：Including after release along same axis it is concatenated it is forward and backward take bolt holder,
In it is forward and backward to take bolt holder include the net tubular stent body being formed by connecting by multiple mesh, and rack body is in outer force effect
Under fold, external force eliminate after discharge restore；
It includes being integrally formed and being connected smoothly proximally and distally that rack body contained by bolt holder is taken after described, the holder sheet
The tiling of body proximal end is in subtriangular after being unfolded, and is in approximate rectangular after the tiling expansion of distal end, the rack body is in the released state
Proximal end is in nearly small long-range pyramidal structure, the cylinder structure in distal end；
Taken before described rack body contained by bolt holder include be integrally formed and be connected smoothly proximal end, intermediate body portion and
Distally, in subtriangular after rack body proximal end tiling expansion, in approximate rectangular after intermediate body portion tiling expansion, far
It is in wind-cowl structure to hold level with both hands after drawout, and proximal end is in nearly small long-range pyramidal structure to the rack body in the released state, intermediate
Main part is cylindrical structure, is distally the closed net bag-shaped structure of tail end；
The length of bolt holder is taken after taking the entire length of bolt holder to be less than or equal to before described；And in the released state, preceding to take bolt
The entire outer diameter of holder takes the whole internal diameter of bolt holder after being less than.
2. tandem according to claim 1 takes bolt holder, it is characterized in that：In the released state, preceding to take on bolt holder
Mesh size takes the mesh size on bolt holder after being more than；Take bolt timbering material thin before taking bolt holder material therefor ratio after and.
3. tandem according to claim 1 takes bolt holder, it is characterized in that：The mesh on bolt holder is taken before and after, by
The proximal end of rack body is laid with multiple developing marks successively to distal end.
4. tandem according to claim 3 takes bolt holder, it is characterized in that：Each developing mark along the mesh in continuous or
Person interval is dislocatedly distributed.
5. tandem according to claim 1 takes bolt holder, it is characterized in that：It is described forward and backward to take holder sheet contained by bolt holder
Body is metal material with shape memory effect or is formed with elastomeric high molecular material heat treatment shaping.
6. tandem according to claim 5 takes bolt holder, it is characterized in that：The forward and backward rack body is with shape
The nitinol alloy wire of shape memory effect is made.
7. tandem according to claim 1 takes bolt holder, it is characterized in that：It is described forward and backward to take holder sheet contained by bolt holder
It is in fusiformis at the proximal openings of body.
8. a kind of thrombus withdrawing device, including tandem as described in any one of claim 1 to 7 take bolt holder, wherein forward and backward
The proximal end of rack body contained by bolt holder is taken to be connected separately with the first, second push-and-pull seal wire, the second push-and-pull seal wire is hollow structure,
First push-and-pull seal wire is sleeved in the second push-and-pull seal wire hollow cavity, preceding that rack body contained by bolt holder is taken to make in the first push-and-pull seal wire
It is recyclable under to be taken after in bolt rack body；It is forward and backward when work that rack body contained by bolt holder is taken to be led in the first, second push-and-pull
It is recyclable to taking in bolt microtubular under silk effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311016.2A CN108670353A (en) | 2018-04-09 | 2018-04-09 | A kind of tandem takes bolt holder and thrombus withdrawing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311016.2A CN108670353A (en) | 2018-04-09 | 2018-04-09 | A kind of tandem takes bolt holder and thrombus withdrawing device |
Publications (1)
| Publication Number | Publication Date |
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| CN108670353A true CN108670353A (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810311016.2A Pending CN108670353A (en) | 2018-04-09 | 2018-04-09 | A kind of tandem takes bolt holder and thrombus withdrawing device |
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| CN (1) | CN108670353A (en) |
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| CN109464175A (en) * | 2018-12-21 | 2019-03-15 | 北京久事神康医疗科技有限公司 | Thrombus withdrawing device and its application method |
| CN109512486A (en) * | 2018-11-12 | 2019-03-26 | 中国人民解放军总医院 | Segmented takes bolt bracket |
| CN110063771A (en) * | 2019-05-31 | 2019-07-30 | 北京泰杰伟业科技有限公司 | A kind of thrombus break catching apparatus |
| CN111345869A (en) * | 2018-12-20 | 2020-06-30 | 先健科技(深圳)有限公司 | Thrombus taking device |
| CN111544083A (en) * | 2020-05-19 | 2020-08-18 | 上海心玮医疗科技有限公司 | Double-deck bolt support of getting with adjustable net |
| CN111568501A (en) * | 2020-05-27 | 2020-08-25 | 上海心玮医疗科技有限公司 | Double-layer telescopic thrombus catching device |
| CN113576599A (en) * | 2021-07-30 | 2021-11-02 | 北京泰杰伟业科技有限公司 | Thrombus retrieval device and self-expanding structure |
| WO2022022458A1 (en) * | 2020-07-27 | 2022-02-03 | Suzhou Lavamed Co., Ltd. | Clot retrieval device |
| CN116942253A (en) * | 2023-09-20 | 2023-10-27 | 杭州亿科医疗科技有限公司 | Radial supporting force adjustable thrombus taking device |
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| CN116942253A (en) * | 2023-09-20 | 2023-10-27 | 杭州亿科医疗科技有限公司 | Radial supporting force adjustable thrombus taking device |
| CN116942253B (en) * | 2023-09-20 | 2023-12-01 | 杭州亿科医疗科技有限公司 | Radial supporting force adjustable thrombus taking device |
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