CN104739486B - A kind of thrombectomby system - Google Patents
A kind of thrombectomby system Download PDFInfo
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- CN104739486B CN104739486B CN201510189433.0A CN201510189433A CN104739486B CN 104739486 B CN104739486 B CN 104739486B CN 201510189433 A CN201510189433 A CN 201510189433A CN 104739486 B CN104739486 B CN 104739486B
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- pipe shaft
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- guide catheter
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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
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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
- A61B17/00234—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
- A61B17/22—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
- A61B2017/22042—Details of the tip of the guide wire
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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
- 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
- A61B2017/22047—Means for immobilising the guide wire in the patient
- A61B2017/22048—Balloons
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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
- A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22065—Functions of balloons
- A61B2017/22067—Blocking; 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
- A61B17/22—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
- A61B2017/22079—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 suction of debris
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
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- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
- Materials For Medical Uses (AREA)
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Abstract
It is to take pin device to take out embolus by machinery, dredging vascellum realizes revascularization the invention discloses a kind of thrombectomby system.A balloon guide catheter can be placed in embolism position near-end by taking during bolt, interim block blood flow prevents the tiny broken embolus for taking bolt process to produce from rushing at blood vessel distal end by blood flow；Simultaneously for larger embolus, also a part of thrombus first can be aspirated with balloon guide catheter, then remaining thrombus is taken out with thrombectomy device.The thrombectomby system of the present invention is provided with thrombectomy device, balloon guide catheter and conveys microtubular, wherein, thrombectomy device is as primary clustering, provided with excision spring, and excision spring release conditions are conical helical pattern.Compared with prior art, thrombectomy device is very soft by the present invention, and minimum is 0.014 by size, and " (0.36mm); can easily enter the cerebrovascular, surgical procedure uses near-end protection technique, and Biochemical analyzer takes bolt to be combined with machinery; improve success rate of operation, reduces complication.
Description
This application claims Patent Office of the People's Republic of China, Application No. 201510108393.2, invention wound are submitted on March 12nd, 2015
Make entitled " a kind of thrombectomby system ", and on March 12nd, 2015 submits Patent Office of the People's Republic of China, Application No.
201520141175.4th, invention and created name is a kind of priority of the Chinese patent application of " thrombectomby system ", its whole
Content is hereby incorporated by reference in the application.
Technical field
It is more particularly to a kind of for the fully closed plug angiosis of PCI the present invention relates to medical surgical instrument technical field
Apparatus.
Background technology
It is clinically general to take bolt to be treated with machinery using medicine thrombolysis for embolism lesion, because medicine thrombolysis is tight
Time window limitation and the more complication of lattice, most of patient finally can take machinery to take bolt therapeutic modality.
Existing machinery takes pin device on the premise of ensureing that it takes bolt effect, all has a disadvantage that substantially：Device ratio
It is harder or larger by size, it is difficult to reach the narrow and small tortuous vascular lesion such as brain.
Therefore, how a kind of machinery into narrow and small tortuous blood vessel is provided and takes pin device, as those skilled in the art
Important technological problems urgently to be resolved hurrily.
The content of the invention
In view of this, the invention provides a kind of thrombectomby system, its thrombectomy device is very soft, can easily enter
The cerebrovascular；The near-end of the thrombectomby system has good push and twisting property, and distal end is softer, and pliability is good, Neng Gou
Freely conveyed in complicated cardiovascular and cerebrovascular, it is to avoid injured blood vessel.
To achieve the above object, the present invention provides following technical scheme：
A kind of thrombectomby system, including thrombectomy device, conveying microtubular and balloon guide catheter；
The thrombectomy device is slidably arranged in the conveying microtubular, is slidably set in the conveying microtubular
In the balloon guide catheter；
The hardness of the conductive filament head of distal end is less than the hardness of the pipe shaft of the balloon guide catheter in the thrombectomy device.
It is preferred that, the thrombectomy device includes：
Thread core filaments；
The coaxially connected conductive filament head in the core filaments distal end；
The excision spring of the conductive filament head near-end is arranged on, the excision spring and the core filaments are coaxial, the two, which is formed, slides
Dynamic contact connection, the Spontaneous release state of the excision spring is conical helical pattern, can be placed in that the conveying is micro- to be led after contraction
In pipe；
It is arranged on the indicating of the excision spring near-end；
It is arranged in the core filaments, and positioned at the limiter of the excision spring inner, the limiter is used to limit institute
State sliding scale of the excision spring in the core filaments.
It is preferred that, the conductive filament head uses a diameter of 0.03~0.20mm platinum wire, platinum alloy silk, golden alloy wire, tungsten
Coil spring shape is made in silk or stainless steel wire, and its external diameter is 0.20~0.97mm, and length is not more than 50mm.
It is preferred that, the excision spring is made of platinum core titanium-nickel wire or golden core titanium-nickel wire；Or use common NiTi
Coil spring shape skeleton is made in B alloy wire, then coats one layer of platinum wire, platinum alloy silk, golden alloy wire or tungsten filament spring；
The string diameter of the excision spring is 0.025~0.15mm, and quantity is 1~16, and pitch is 0.5~3mm, spiral coil
Number is 2~6 circles, and maximum gauge is 2~10mm.
It is preferred that, the pipe shaft segmentation of the balloon guide catheter is using the material of different hardness, and its hardness is vertically by near
The classification of end to distal end softens gradually.
It is preferred that, the pipe shaft segmentation of the conveying microtubular is using the material of different hardness, and its hardness is vertically by near-end
Soften gradually to distal end classification.
It is preferred that, the balloon guide catheter includes：
Pipe shaft；
It is arranged on the indicating of the pipe shaft distal end；
It is arranged on the pipe shaft, and positioned at the sacculus of the indicating near-end；
It is connected to the seat of the pipe shaft near-end；
It is arranged on the strain relief sleeve pipe of the pipe shaft and the seat junction.
It is preferred that, the pipe shaft of the balloon guide catheter is three-decker, and internal layer uses polytetrafluoroethylene (PTFE), and intermediate layer is steel
Silk screen, helical spring or steel wire+helical spring, outer layer use nylon, nylon elastomer or polyurethane.
It is preferred that, the conveying microtubular includes：
Pipe shaft；
It is arranged on the indicating of the pipe shaft distal end；
It is connected to the seat of the pipe shaft near-end；
It is arranged on the strain relief sleeve pipe of the pipe shaft and the seat junction.
It is preferred that, the pipe shaft of the conveying microtubular is three-decker, and internal layer uses polytetrafluoroethylene (PTFE), and intermediate layer is steel wire
Net, helical spring or steel wire+helical spring, outer layer use nylon, nylon elastomer or polyurethane.
It can be seen from above-mentioned technical scheme that, the thrombectomby system that the present invention is provided, its thrombectomy device is very soft
Soft, the hardness of the conductive filament head of distal end therein is less than the hardness of the pipe shaft of balloon guide catheter；So, thrombectomy device can
Easily enter the cerebrovascular；The near-end of the thrombectomby system has good push and twisting property, softer, the pliability in distal end
It is good, can freely it be conveyed in complicated cardiovascular and cerebrovascular, it is to avoid injured blood vessel.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of thrombectomy device provided in an embodiment of the present invention；
Fig. 2 is the structural representation of balloon guide catheter provided in an embodiment of the present invention；
Fig. 3 is the structural representation provided in an embodiment of the present invention for conveying microtubular；
Fig. 4 is the use figure of thrombectomby system provided in an embodiment of the present invention.
Wherein, 1 is conductive filament head, and 2 be excision spring, and 3 be indicating, and 4 be limiter, and 5 be core filaments, and 6 be balloon guide catheter
Indicating, 7 be sacculus, and 8 be the pipe shaft of balloon guide catheter, and 9 be the strain relief sleeve pipe of balloon guide catheter, and 10 lead for sacculus
The seat of guiding tube, 11 be the indicating of conveying microtubular, and 12 be the pipe shaft of conveying microtubular, and 13 be the strain relief for conveying microtubular
Sleeve pipe, 14 be the seat of conveying microtubular, and 15 be blood vessel, and 16 be thrombectomy device, and 17 be embolism position, and 18 be conveying microtubular,
19 be balloon guide catheter.
Embodiment
The invention discloses a kind of thrombectomby system, its thrombectomy device is very soft, can easily enter the cerebrovascular；Should
The near-end of thrombectomby system has good push and twisting property, and distal end is softer, and pliability is good, can be in complicated heart and brain
It is intravascular freely to convey, it is to avoid injured blood vessel.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-Fig. 4 is referred to, Fig. 1 is the structural representation of thrombectomy device provided in an embodiment of the present invention；Fig. 2 is this hair
The structural representation for the balloon guide catheter that bright embodiment is provided；Fig. 3 is the knot provided in an embodiment of the present invention for conveying microtubular
Structure schematic diagram；Fig. 4 is the use figure of thrombectomby system provided in an embodiment of the present invention.
Thrombectomby system provided in an embodiment of the present invention, its core improvement is, including thrombectomy device 16, conveying
Microtubular 18 and balloon guide catheter 19；
Thrombectomy device 16 is slidably arranged on 18 in conveying microtubular, and both form sliding contact；Convey in microtubular
18 are slidably arranged in balloon guide catheter 19, and both form sliding contact；Wherein, conveying microtubular 18 is used to cut thrombus
Except device 16 be delivered to target blood 15 and operation end drop back out in vitro；Balloon guide catheter 19 is used for Basilar artery blood flow,
Set up near-end protection；
The hardness of the conductive filament head 1 of distal end is less than the hardness of the pipe shaft 8 of balloon guide catheter 19 in thrombectomy device 16 so that
The hardness of thrombectomby system is softened gradually by near-end to distal end classification vertically；It should be noted that above-mentioned distal end is base
It is accordingly, close in the use state of thrombectomby system, the i.e. one end of the apparatus away from user, i.e. left end in accompanying drawing
One end of user is the right-hand member in near-end, i.e. accompanying drawing, similarly hereinafter.
As Figure 1-Figure 4, when using thrombectomby system provided in an embodiment of the present invention, the quilt of balloon guide catheter 19
The near-end of embolism position 17 is delivered to, Filled Balloon 7, Basilar artery blood flow sets up near-end protection.Will be defeated through balloon guide catheter 19
Send microtubular 18 to be delivered to embolism position distal end with thrombectomy device 16, keep the position of thrombectomy device 16 constant, withdraw conveying
Microtubular 18, the excision spring 2 of thrombectomy device 16 is discharged in embolism position distal end, is now cut off spring 2 and is opened naturally, withdraws
Thrombectomy device 16, thrombus is dragged in balloon guide catheter 19, accomplished the end in view.
It can be seen from above-mentioned technical scheme that, thrombectomby system provided in an embodiment of the present invention, its thrombectomy device
Very soft, the hardness of the conductive filament head of distal end therein is less than the hardness of the pipe shaft of balloon guide catheter；So, thrombus is cut
Except device can easily enter the cerebrovascular；The hardness of the thrombectomby system is softened gradually by near-end to distal end classification vertically, near-end
With good push and twisting property, distal end is softer, and pliability is good, can freely convey, keep away in complicated cardiovascular and cerebrovascular
Exempt from injured blood vessel.
In the specific embodiment that this programme is provided, thrombectomy device 16 includes：
Thread core filaments 5；Preferably, core filaments 5 are made of nitinol alloy wire or stainless steel wire, string diameter is 0.25~
0.97mm, length is 500~3000mm；
The coaxially connected conductive filament head 1 in the distal end of core filaments 5；
The excision spring 2 of the near-end of conductive filament head 1 is arranged on, excision spring 2 and core filaments 5 are coaxial, cut off the near-end and core of spring 2
Silk 5 is formed and is slidably connected, and (tip of excision spring 2 is towards core filaments 5 for conical helical pattern for the Spontaneous release state of excision spring 2
Distal end), can be placed in after contraction conveying microtubular 18 in；
It is arranged on the indicating 3 of the excision near-end of spring 2；Preferably, the external diameter of indicating 3 is 0.2~0.97mm, using platinum, platinum
Alloy, gold or stainless steel, are connected with excision spring 3 by welding technique, the position of excision spring 2 can be shown under X-ray, this
When the overall X-ray opaque of excision spring 2；
It is arranged in core filaments 5, and positioned at the limiter 4 cut off inside spring 2, limiter 4 exists for limiting excision spring 2
Sliding scale in core filaments 5, its structure is referred to described in Fig. 1.
Preferably, platinum wire, platinum alloy silk, golden alloy wire, tungsten filament of the conductive filament head 1 using a diameter of 0.03~0.20mm
Or coil spring shape is made in stainless steel wire etc., its external diameter is 0.20~0.97mm, and length is not more than 50mm, preferably 3-20mm,
Certain toughness is also assures that on the premise of structurally flexible.
In the specific embodiment that this programme is provided, excision spring 2 is made of platinum core titanium-nickel wire or golden core titanium-nickel wire；
Or coil spring shape skeleton is made using common nitinol alloy wire, then coat one layer of platinum wire, platinum alloy silk, golden alloy wire or
Tungsten filament spring, the overall X-ray opaque of the excision spring 2；
The string diameter for cutting off spring 2 is 0.025~0.15mm, and quantity is 1~16, and pitch is 0.5~3mm, spiral number of turns
For 2~6 circles, maximum gauge is 2~10mm.
In order to further optimize above-mentioned technical scheme, the segmentation of pipe shaft 8 of balloon guide catheter 19 is using different hardness
Material, its hardness is softened gradually by near-end to distal end classification vertically.
Similar, the segmentation of pipe shaft 12 of conveying microtubular 18 is using the material of different hardness, and its hardness is vertically by near-end
Soften gradually to distal end classification.The pipe shaft 8 of balloon guide catheter 19 is from conveying the segmentation of pipe shaft 12 of microtubular 18 using different hard
The polymeric material of degree, makes the hardness of pipe shaft be softened gradually by near-end to distal end classification vertically, near-end has good push
And twisting property, distally softer, pliability is good, can freely be conveyed in complicated cardiovascular and cerebrovascular, it is to avoid injured blood vessel.Enter one
Step, the hardness of pipe shaft 12 is less than the hardness of pipe shaft 8 in balloon guide catheter 19 in conveying microtubular 18.
In the specific embodiment that this programme is provided, balloon guide catheter 19 includes：
Pipe shaft 8；Preferably, its internal diameter is 0.84~1.02mm, external diameter is 1.0~1.20mm, long 100~140cm；
It is arranged on the indicating 6 of the distal end outer rim of pipe shaft 8；Preferably, the external diameter of indicating 6 is 0.70~0.90mm, using platinum, platinum
Alloy, gold or stainless steel are material, are connected by welding procedure with the pipe shaft 8 of balloon guide catheter 19, can shown under X-ray
Shadow；
It is arranged on pipe shaft 8, and positioned at the sacculus 7 of the near-end of indicating 6, and sacculus 7 and conduit 8 are coaxial；When in use, pass through
Syringe fills contrast agent to realize that sacculus 7 is filled to the inner chamber of sacculus 7, and syringe is connected on catheter block 10；Preferably, ball
Capsule 7 is made of silica gel or latex, and maximum fills a diameter of 3~20mm, and the length of sacculus 7 is 5~20mm；
The seat 10 of the near-end of pipe shaft 8 is connected to, its structure is referred to shown in Fig. 2；
It is arranged on the strain relief sleeve pipe 9 of pipe shaft 8 and the junction of seat 10；The strain relief sleeve pipe 9 is pipe shaft 8 and seat 10
Transition, strain relief sleeve pipe 9 is covered in the proximal end face of pipe shaft 8, is firmly connected with pipe shaft 8, there is a through hole inside seat 10, with pipe
The inner chamber of body 8 is communicated.
Preferably, the pipe shaft 8 of balloon guide catheter 19 is three-decker, internal layer uses polytetrafluoroethylene (PTFE), interior when using
Chamber can obtain less frictional resistance；Intermediate layer is steel wire, helical spring or steel wire+helical spring；Steel wire is to protect
Thrust is demonstrate,proved, helical spring ensures fracture resistance, can also increase X-ray observability；In the specific embodiment that this programme is provided, steel wire
Net a diameter of 0.01~0.076mm stainless steels, tungsten or titanium-nickel wire, PPI are 25~100；Helical spring with diameter 0.01~
0.076mm stainless steel, tungsten or titanium-nickel wire is made, and pitch is 0.012~0.1mm, and external diameter is 0.70~0.90m；Outer layer is used
Nylon, nylon elastomer or polyurethane are material.
In order to further optimize above-mentioned technical scheme, balloon guide catheter 19 can be additionally used in aspirate thrombi.For larger
Embolus, also first can aspirate a part with balloon guide catheter 19 and take bolt thrombus, i.e., a syringe is connected on catheter block 10, is passed through
Syringe is aspirated, then takes out remaining thrombus with thrombectomy device 16, so as to realize that Biochemical analyzer takes bolt to be combined with machinery, is improved
Success rate of operation, reduces complication.
In the specific embodiment that this programme is provided, conveying microtubular 18 includes：
Pipe shaft 12；Preferably, its internal diameter is 0.43~0.69mm, external diameter is 0.58~0.84mm, long 140~160cm；
It is arranged on the indicating 11 of the distal end outer rim of pipe shaft 12；Preferably, the external diameter of indicating 11 is 0.48~0.74mm, use
Platinum, platinum alloy, gold or stainless steel are material, are connected by welding procedure with balloon guide catheter, can developed under X-ray；
It is connected to the seat 14 of the near-end of pipe shaft 12；
It is arranged on the strain relief sleeve pipe 13 of pipe shaft 12 and the junction of seat 14；The strain relief sleeve pipe 13 is pipe shaft 12 and seat
14 transition, strain relief sleeve pipe 13 is covered in the proximal end face of pipe shaft 12, is firmly connected with pipe shaft 12, has one to lead to inside seat 14
Hole, is communicated with the inner chamber of pipe shaft 12.
Preferably, the pipe shaft 12 of conveying microtubular 18 is three-decker, internal layer uses polytetrafluoroethylene (PTFE), inner chamber when using
Less frictional resistance can be obtained；Intermediate layer is steel wire, helical spring or steel wire+helical spring；There is provided in this programme
In specific embodiment, steel wire a diameter of 0.01~0.06mm stainless steels, tungsten or titanium-nickel wire, PPI are 25~100.Spiral bullet
Spring is made of 0.01~0.07mm of diameter stainless steel, tungsten or titanium-nickel wire, pitch be 0.012~0.1mm, external diameter be 0.48~
0.74mm；Outer layer uses nylon, nylon elastomer or polyurethane for material.
Conveying microtubular 18 is placed in balloon guide catheter 19, can play enhancing support to balloon guide catheter 19 by inside
Effect, is used to help the intravasation of balloon guide catheter 19 and in the blood vessels smooth conveying thrombectomy device 16.
In summary, thrombectomby system provided in an embodiment of the present invention, the technical problem to be solved is taken by machinery
Pin device takes out embolus, and dredging vascellum realizes revascularization.Taking can lead during bolt in embolism position near-end one ball capsule of placement
Pipe, interim block blood flow prevents the tiny broken embolus for taking bolt process to produce from rushing at blood vessel distal end by blood flow；Simultaneously for compared with
Big embolus, also first can aspirate a part of thrombus, then take out remaining thrombus with thrombectomy device with balloon guide catheter.The present invention's
Thrombectomby system is provided with thrombectomy device, balloon guide catheter and conveys microtubular, wherein, thrombectomy device is used as main group
Part, provided with excision spring, excision spring release conditions are conical helical pattern.The present invention compared with prior art, thrombectomy device
Very soft, minimum is 0.014 by size, and " (0.36mm) can easily enter the cerebrovascular, surgical procedure is using near-end protection skill
Art, Biochemical analyzer takes bolt to be combined with machinery, improves success rate of operation, reduces complication.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of thrombectomby system, it is characterised in that including thrombectomy device (16), conveying microtubular (18) and sacculus guiding
Conduit (19)；
The thrombectomy device (16) is slidably arranged in the conveying microtubular (18), and the conveying microtubular (18) can slide
It is dynamic to be arranged in the balloon guide catheter (19)；
The hardness of the conductive filament head (1) of distal end is less than the pipe shaft of the balloon guide catheter (19) in the thrombectomy device (16)
(8) hardness；
The balloon guide catheter (19) can be used for aspirate thrombi.
2. thrombectomby system according to claim 1, it is characterised in that the thrombectomy device (16) includes：
Thread core filaments (5)；
The coaxially connected conductive filament head (1) in the core filaments (5) distal end；
The excision spring (2) of the conductive filament head (1) near-end is arranged on, it is described to cut off spring (2) and the core filaments (5) coaxially, two
Person forms sliding contact connection, and the Spontaneous release state of the excision spring (2) is conical helical pattern, and institute is can be placed in after contraction
State in conveying microtubular (18)；
It is arranged on the indicating (3) of described excision spring (2) near-end；
It is arranged in the core filaments (5), and positioned at the internal limiter (4) of the excision spring (2), the limiter (4) is used
In sliding scale of the limitation excision spring (2) in the core filaments (5).
3. thrombectomby system according to claim 2, it is characterised in that the conductive filament head (1) uses a diameter of 0.03
Coil spring shape is made in~0.20mm platinum wire, platinum alloy silk, golden alloy wire, tungsten filament or stainless steel wire, and its external diameter is 0.20
~0.97mm, length is not more than 50mm.
4. thrombectomby system according to claim 3, it is characterised in that the excision spring (2) uses platinum core nickel
Titanium silk or golden core titanium-nickel wire are made；Or coil spring shape skeleton is made using common nitinol alloy wire, then coat one layer of platinum
Silk, platinum alloy silk, golden alloy wire or tungsten filament spring；
The string diameter of the excision spring (2) is 0.025~0.15mm, and quantity is 1~16, and pitch is 0.5~3mm, spiral coil
Number is 2~6 circles, and maximum gauge is 2~10mm.
5. the thrombectomby system according to claim 1-4 any one, it is characterised in that the balloon guide catheter
(19) pipe shaft (8) segmentation is using the material of different hardness, and its hardness is classified by near-end to distal end vertically to soften gradually.
6. thrombectomby system according to claim 5, it is characterised in that the pipe shaft (12) of the conveying microtubular (18)
Segmentation is using the material of different hardness, and its hardness is classified by near-end to distal end vertically to soften gradually.
7. thrombectomby system according to claim 5, it is characterised in that the balloon guide catheter (19) includes：
Pipe shaft (8)；
It is arranged on the indicating (6) of the pipe shaft (8) distal end；
It is arranged on the pipe shaft (8), and positioned at the sacculus (7) of the indicating (6) near-end；
It is connected to the seat (10) of the pipe shaft (8) near-end；
It is arranged on the strain relief sleeve pipe (9) of the pipe shaft (8) and the seat (10) junction.
8. thrombectomby system according to claim 7, it is characterised in that the pipe shaft of the balloon guide catheter (19)
(8) it is three-decker, internal layer uses polytetrafluoroethylene (PTFE), intermediate layer is steel wire, helical spring or steel wire+helical spring, outside
Layer is using nylon, nylon elastomer or polyurethane.
9. thrombectomby system according to claim 6, it is characterised in that the conveying microtubular (18) includes：
Pipe shaft (12)；
It is arranged on the indicating (11) of the pipe shaft (12) distal end；
It is connected to the seat (14) of the pipe shaft (12) near-end；
It is arranged on the strain relief sleeve pipe (13) of the pipe shaft (12) and the seat (14) junction.
10. thrombectomby system according to claim 9, it is characterised in that the pipe shaft of the conveying microtubular (18)
(12) it is three-decker, internal layer uses polytetrafluoroethylene (PTFE), intermediate layer is steel wire, helical spring or steel wire+helical spring,
Outer layer uses nylon, nylon elastomer or polyurethane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510189433.0A CN104739486B (en) | 2015-03-12 | 2015-04-21 | A kind of thrombectomby system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510108393.2A CN104622538A (en) | 2015-03-12 | 2015-03-12 | Thrombus excision system |
| CN201520141175 | 2015-03-12 | ||
| CN2015201411754 | 2015-03-12 | ||
| CN2015101083932 | 2015-03-12 | ||
| CN201510189433.0A CN104739486B (en) | 2015-03-12 | 2015-04-21 | A kind of thrombectomby system |
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| CN104739486A CN104739486A (en) | 2015-07-01 |
| CN104739486B true CN104739486B (en) | 2017-11-07 |
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| CN201520241613.4U Expired - Fee Related CN204542290U (en) | 2015-03-12 | 2015-04-21 | A kind of thrombectomby system |
| CN201510189433.0A Active CN104739486B (en) | 2015-03-12 | 2015-04-21 | A kind of thrombectomby system |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9265512B2 (en) | 2013-12-23 | 2016-02-23 | Silk Road Medical, Inc. | Transcarotid neurovascular catheter |
| US10426497B2 (en) | 2015-07-24 | 2019-10-01 | Route 92 Medical, Inc. | Anchoring delivery system and methods |
| US11065019B1 (en) | 2015-02-04 | 2021-07-20 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
| EP3253437B1 (en) | 2015-02-04 | 2019-12-04 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system |
| CN204542290U (en) * | 2015-03-12 | 2015-08-12 | 湖南瑞康通科技发展有限公司 | A kind of thrombectomby system |
| CN105342668A (en) * | 2015-12-11 | 2016-02-24 | 河南亚都实业有限公司 | Suction catheter for sucking thrombotic substances |
| US10531890B2 (en) * | 2016-12-30 | 2020-01-14 | C.R. Bard, Inc. | Scoring balloon with translating scoring wires |
| CN110392591B (en) * | 2017-01-10 | 2022-06-03 | 92号医疗公司 | Aspiration catheter system and method of use |
| CN112423824B (en) | 2018-05-17 | 2023-02-21 | 92号医疗公司 | Aspiration catheter system and method of use |
| JP2022500194A (en) * | 2018-09-26 | 2022-01-04 | ワシントン・ユニバーシティWashington University | Balloon encapsulation and isotonic suction thrombectomy catheters and methods |
| CN111759399A (en) * | 2018-12-05 | 2020-10-13 | 上海蓝脉医疗科技有限公司 | Thrombus taking device |
| CN113018638A (en) * | 2019-12-09 | 2021-06-25 | 冯海 | Micro catheter for enhancing near-end pushing performance and far-end flexibility of catheter body and manufacturing method thereof |
| 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 |
| CN112023130B (en) * | 2020-08-25 | 2023-05-12 | 宁波市医疗中心李惠利医院 | Guiding device for first aid under endoscope |
| CN116746981B (en) * | 2023-08-18 | 2023-11-07 | 浙江归创医疗科技有限公司 | Invasive instrument |
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2015
- 2015-04-21 CN CN201520241613.4U patent/CN204542290U/en not_active Expired - Fee Related
- 2015-04-21 CN CN201510189433.0A patent/CN104739486B/en active Active
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| CN101396295A (en) * | 2007-09-29 | 2009-04-01 | 成正辉 | Blood thrombus and embolus resectoscope |
| CN102335022A (en) * | 2010-07-27 | 2012-02-01 | 上海理工大学 | Locally-plugged thrombus scaler |
| CN101912289A (en) * | 2010-08-25 | 2010-12-15 | 成正辉 | Thrombus excider and preparation method and use method thereof |
| CN202619801U (en) * | 2012-05-14 | 2012-12-26 | 湖南依微迪医疗器械有限公司 | Cerebral thrombosis resecting device |
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| CN104739486A (en) | 2015-07-01 |
| CN204542290U (en) | 2015-08-12 |
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