CN104398282A - Spring ring conveying system capable of being used for electric heat releasing - Google Patents
Spring ring conveying system capable of being used for electric heat releasing Download PDFInfo
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- CN104398282A CN104398282A CN201410466993.1A CN201410466993A CN104398282A CN 104398282 A CN104398282 A CN 104398282A CN 201410466993 A CN201410466993 A CN 201410466993A CN 104398282 A CN104398282 A CN 104398282A
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- electric heating
- spring
- support spring
- delivery system
- waterproof gasket
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
- A61B2017/12068—Details concerning the detachment of the occluding device from the introduction device detachable by heat
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Neurosurgery (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a spring ring conveying system capable of being used for electric heat releasing, and belongs to the technical field of spring ring conveying systems. A waterproof gasket of the spring ring conveying system is arranged at one end of the interior of a heat shrinkage pipe; a second supporting spring is arranged at the other end of the interior of the heat shrinkage pipe; a conveying guide wire is arranged in a first supporting spring, a developing mark and a second supporting spring; the conveying guide wire is divided into five sections, and the second section and the fourth section are taper change areas; and the other three sections are sections with constant diameters. According to the spring ring conveying system, as the waterproof gasket is additionally arranged, perfect butt jointing is better achieved after an implantation part and the conveying system are assembled; the water inflow risks of an electric heat spring in the conveying process are greatly reduced; and the releasing stability is better improved. In addition, multi-section taper design of the conveying guide wire is further provided, so that different sections of the conveying system are different in rigidity; and the far end is quite soft, the near end is quite rigid, and the whole pushing performance of the conveying system is greatly improved.
Description
Technical field
The present invention relates to a kind of coil delivery system that can be used for electric heating and free, belong to the coil delivery system technical field that can be used for electric heating and free.
Background technology
Turn product experienced by development in the past few decades, one of Main Means becoming embolization of intracranial aneurysm.After the improvement that experienced by several generations product, domestic and international turn product on sale in the market also more and more obtains the accreditation of doctor.Free principle to divide according to turn, common turn product is mainly divided into that (the GDC turn product of such as Boston Scientific company) is freed in electric smelting, electric heating frees (the Microplex turn product of such as Microvention company), the four large classes such as (the Axium turn product of such as ev3 company), hydrolysis de-(the TRUFILL DCS turn product of such as Cordis company) freed by machinery.Turn product self belongs to a kind of passive series products, but it free (implant part is separated with induction system) all needs outside to provide a controlled energy (electricity, heat, mechanical force or chemical reaction).Even if other properties of turn product are good again, if can not realize fast and effectively freeing in aneurysm, capital increases the risk of operation, and the even life security of entail dangers to patient, therefore frees the first index that performance more and more becomes doctor evaluation turn quality.
Traditional GDC turn belongs to electric smelting frees, the time of freeing is long, operating process is more loaded down with trivial details, electric heating is freed, machinery is freed and be hydrolyzed de-is the ways of relief of current main flow, its common feature is that the time of freeing is shorter, usually completed in several seconds, these ways of relief are deeply by getting involved liking of doctor.
The weak point that electric heating is freed is exactly when the inner chamber of electric heating part is full of by blood or other liquid time, on the macromolecule silk that the heat of electric heating part is just difficult to effectively to be delivered to its inner chamber or hollow tube, causes and frees difficulty or be difficult to free.A kind of coil delivery system that can be used for electric heating and free all is refer in US Patent No. 2006/0052815A1 and US 2010/0268204 A1, although be described in detail the primary structure of induction system and principle in United States Patent (USP), but in the induction system that it is announced, electric heating part (spring of reducing) and implant part are directly linked together by macromolecule silk, because spring all can have certain angle in the process of processing, end is cut rear out-of-flatness, and therefore to fit together rear sealing not good enough for implant part and induction system; Turn is in the process of carrying through microtubular, flushing liquid is filled with in conduit, if the poor flushing liquid that will make of sealing penetrates into electric heating turn inside under pressure or frictional resistance between implant part and induction system, what finally affect turn product frees stability.
Summary of the invention
The object of the invention is to solve above-mentioned prior art Problems existing, namely the electric heating part of coil delivery system freed of existing electric heating and implant part are directly linked together by macromolecule silk, because spring all can have certain angle in the process of processing, end is cut rear out-of-flatness, and therefore to fit together rear sealing not good enough for implant part and induction system; Turn is in the process of carrying through microtubular, flushing liquid is filled with in conduit, if the poor flushing liquid that will make of sealing penetrates into electric heating turn inside under pressure or frictional resistance between implant part and induction system, what finally affect turn product frees stability.And then a kind of coil delivery system that can be used for electric heating and free is provided.
The object of the invention is to be achieved through the following technical solutions:
A kind of coil delivery system that can be used for electric heating and free, comprise: waterproof gasket, electric heating spring, delivery guidewire, support spring one, developing mark, support spring two, heat-shrink tube 7 and conductive filament, described waterproof gasket, electric heating spring, delivery guidewire, support spring one, developing mark, support spring two and conductive filament are all arranged in heat-shrink tube, described waterproof gasket is arranged on the one end in heat-shrink tube, support spring two is arranged on the other end in heat-shrink tube, electric heating spring is provided with successively between waterproof gasket and support spring two, support spring one and developing mark, delivery guidewire is arranged on support spring one, in developing mark and support spring two, described delivery guidewire is divided into five sections of designs, wherein second segment and the 4th section two sections are tapering variation zone, its length is respectively 20mm and 220mm, other three sections is the interval of constant diameter, wherein the length of first paragraph and the 3rd section is respectively 45mm and 90mm, and the overall length of delivery guidewire is 1800-1900mm.
Beneficial effect of the present invention: the coil delivery system that can be used for electric heating and free of the present invention, owing to adding waterproof gasket, be conducive to implant part and realize perfect docking after assembling with induction system, greatly reduce the risk that electric heating spring is intake in course of conveying, be conducive to improving the stability freed; And the invention allows for the multistage taper design of delivery guidewire, make the different section of induction system have different hardness, far-end is more soft, and near-end is rigidity comparatively, substantially increases the propelling movement performance of induction system entirety.
Accompanying drawing explanation
Fig. 1 is the structural representation that can be used for the coil delivery system that electric heating is freed of the present invention;
Fig. 2 is the structural representation of delivery guidewire;
Fig. 3 is the schematic diagram after implant part and induction system are assembled;
Fig. 4 is that implant part frees the schematic diagram after being separated with induction system.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail: the present embodiment is implemented under premised on technical solution of the present invention, gives detailed embodiment, but protection scope of the present invention is not limited to following embodiment.
As Fig. 1, shown in Fig. 3 and Fig. 4, a kind of coil delivery system that can be used for electric heating and free involved by the present embodiment, comprise: waterproof gasket 1, electric heating spring 2, delivery guidewire 3, support spring 1, developing mark 5, support spring 26, heat-shrink tube 7 and conductive filament 8, described waterproof gasket 1, electric heating spring 2, delivery guidewire 3, support spring 1, developing mark 5, support spring 26 and conductive filament 8 are all arranged in heat-shrink tube 7, described waterproof gasket 1 is arranged on the one end in heat-shrink tube 7, support spring 26 is arranged on the other end in heat-shrink tube 7, electric heating spring 2 is provided with successively between waterproof gasket 1 and support spring 26, support spring 1 and developing mark 5, delivery guidewire 3 is arranged on support spring 1, in developing mark 5 and support spring 26.
Described waterproof gasket 1 a kind of adopts medical stainless steel material (preferably 304, the trade mark of 316L) hollow cylinder that processes, the external diameter of waterproof gasket 1 is 0.20 ~ 0.50mm, preferably 0.25 ~ 0.35mm, internal diameter is 0.08 ~ 0.25mm, preferably 0.10 ~ 0.16mm, length is 0.1 ~ 0.5mm, preferably 0.1 ~ 0.3mm.
As shown in Figure 2, described delivery guidewire 3 is divided into five sections of designs, wherein second segment C and the 4th section E two sections is tapering variation zone, its length is respectively 20mm and 220mm, other three sections is the interval of constant diameter, wherein the length of first paragraph B and the 3rd section D is respectively 45mm and 90mm, and the overall length of delivery guidewire 3 is 1850mm.It is poor that delivery guidewire under this design has different hardness ladders from far-end to near-end, and far-end is more soft, and near-end is rigidity comparatively, thus can ensure that induction system entirety has well propelling movement property.
Described electric heating spring 2 has constant external diameter, internal diameter, pitch, and external diameter is 0.10 ~ 0.30mm, preferably 0.15 ~ 0.25mm, internal diameter is 0.05 ~ 0.25mm, preferably 0.10 ~ 0.20mm, and pitch is 0.03 ~ 0.10mm, preferably 0.05 ~ 0.08mm, length is 1 ~ 3mm, preferably 1 ~ 2mm; Electric heating spring adopts the metal material that common resistivity is higher, preferred platinum-tungsten alloys and tungsten.
Described delivery guidewire 3 adopts many taper design, preferred double tapered, and delivery guidewire is divided into 5 sections (containing between 2 tapering Sanding Areas), and overall length is 1800 ~ 1900mm, preferred 1850mm, and delivery guidewire maximum gauge is 0.20 ~ 0.40mm, preferably 0.25 ~ 0.35mm; The material of delivery guidewire is 304 rustless steels.
Described support spring 1 and support spring 26 all adopt 304 rustless steels to process, their external diameter is 0.15 ~ 0.40mm, preferably 0.20 ~ 0.30mm, their internal diameter is 0.10 ~ 0.35mm, preferably 0.15 ~ 0.25mm, their pitch is 0.10 ~ 0.30mm, preferably 0.15 ~ 0.25mm.
Described developing mark 5 is the materials such as the common material with fine development effect, preferred platinum-tungsten alloys, platinumiridio, gold, tungsten, tantalum, and the length of developing mark is 2 ~ 5mm, preferably 2 ~ 3mm, and its processing form is fine and close winding spring or hollow ring.
The metal material that described conductive filament 8 adopts resistivity low, the materials such as preferred silver, silver alloy, copper, conductive filament is surperficial with insulating barrier, the material such as preferred polyimides, ETFE, PTFE; The diameter of conductive filament is 0.05 ~ 0.20mm, preferably 0.06 ~ 0.15mm.
The material of described heat-shrink tube 7 is PET, PTFE, nylon etc.
With bonding agent between described waterproof gasket 1 and heat-shrink tube 7, preferred ultraviolet curing adhesive; Conductive filament 8 and electric heating spring 2 distalmost end realize conductive contact, the connected modes such as preferred soldering, conductive adhesive; The thinnest part of delivery guidewire 3 far-end is positioned at the inner chamber of support spring and developing mark, and its least significant end and electric heating spring near-end realize conductive contact, the connected modes such as preferred soldering, conductive adhesive.
It contains the closed circuit that comprises electric heating spring 2, delivery guidewire 3 and conductive filament 8, can apply a safe dc voltage, preferred voltage 8 ~ 12V by induction system near-end.
As shown in Figure 3, implant part is fitted together by a macromolecule silk material 9 and induction system, and implant part, by implanting spring 11 and developing mark pipe 10 forms, is implanted spring 11 and is integrated by laser weld with developing mark pipe 10.Implant part and induction system realize perfect closed butt joint by A ~ A cross section.
As shown in Figure 4, when applying the DC voltage of a 8 ~ 12V at induction system near-end to its closed circuit, implant part and induction system occur to free fast at A ~ A section and are separated, by withdrawing microtubular, aneurysm is inserted by implanting portion branch, induction system then withdraws from human body by microtubular, and the whole process stabilization of freeing of turn is reliable.
A kind of coil delivery system that can be used for electric heating and free that the present embodiment provides, a waterproof gasket is added specially at the far-end of electric heating turn, waterproof gasket is hollow cylinder, its sectional dimension is consistent with implant part near-end developing mark, be conducive to implant part like this and realize perfect docking after assembling with induction system, greatly reduce the risk that electric heating spring is intake in course of conveying, be conducive to improving the stability freed; And the present embodiment also proposed the multistage taper design of delivery guidewire, substantially increasing the propelling movement performance of induction system entirety, is more than the key point of the present embodiment technology.
The above; be only the present invention's preferably detailed description of the invention; these detailed description of the invention are all based on the different implementations under general idea of the present invention; and protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. the coil delivery system that can be used for electric heating and free, it is characterized in that, comprise: waterproof gasket (1), electric heating spring (2), delivery guidewire (3), support spring one (4), developing mark (5), support spring two (6), heat-shrink tube (7) and conductive filament (8), described waterproof gasket (1), electric heating spring (2), delivery guidewire (3), support spring one (4), developing mark (5), support spring two (6) and conductive filament (8) are all arranged in heat-shrink tube (7), described waterproof gasket (1) is arranged on the one end in heat-shrink tube (7), support spring two (6) is arranged on the other end in heat-shrink tube (7), electric heating spring (2) is provided with successively between waterproof gasket (1) and support spring two (6), support spring one (4) and developing mark (5), delivery guidewire (3) is arranged on support spring one (4), in developing mark (5) and support spring two (6), described delivery guidewire (3) is divided into five sections of designs, wherein second segment (C) and the 4th section (E) two sections are tapering variation zone, its length is respectively 20mm and 220mm, other three sections is the interval of constant diameter, wherein the length of first paragraph (B) and the 3rd section (D) is respectively 45mm and 90mm, and the overall length of delivery guidewire (3) is 1800-1900mm.
2. the coil delivery system that can be used for electric heating and free according to claim 1, it is characterized in that, described waterproof gasket (1) is a kind of hollow cylinder adopting medical stainless steel material to process, the external diameter of waterproof gasket (1) is 0.20 ~ 0.50mm, internal diameter is 0.08 ~ 0.25mm, and length is 0.1 ~ 0.5mm.
3. the coil delivery system that can be used for electric heating and free according to claim 1, is characterized in that, described electric heating spring (2) has constant external diameter, internal diameter and pitch, external diameter is 0.10 ~ 0.30mm, internal diameter is 0.05 ~ 0.25mm, and pitch is 0.03 ~ 0.10mm, and length is 1 ~ 3mm.
4. the coil delivery system that can be used for electric heating and free according to claim 1, it is characterized in that, described support spring one (4) and support spring two (6) all adopt 304 rustless steels to process, their external diameter is 0.15 ~ 0.40mm, their internal diameter is 0.10 ~ 0.35mm, and their pitch is 0.10 ~ 0.30mm.
5. the coil delivery system that can be used for electric heating and free according to claim 1, is characterized in that, the material of described developing mark (5) is platinum-tungsten alloys, platinumiridio, gold, tungsten or tantalum.
6. can be used for the coil delivery system that electric heating is freed according to claim 1 or 5, it is characterized in that, the length of described developing mark (5) is 2 ~ 5mm.
7. the coil delivery system that can be used for electric heating and free according to claim 1, is characterized in that, described conductive filament (8) adopts the metal material that resistivity is low, and its metal material is silver, silver alloy or copper.
8. according to claim 1 or 7, can be used for the coil delivery system that electric heating frees, it is characterized in that, the diameter of described conductive filament (8) is 0.05 ~ 0.20mm.
9. the coil delivery system that can be used for electric heating and free according to claim 1, is characterized in that, the material of described heat-shrink tube (7) is PET, PTFE or nylon.
10. the coil delivery system that can be used for electric heating and free according to claim 1, is characterized in that, with bonding agent between described waterproof gasket (1) and heat-shrink tube (7), its bonding agent is ultraviolet curing adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466993.1A CN104398282B (en) | 2014-09-15 | 2014-09-15 | Can be used for the coil delivery system that electric heating is freed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466993.1A CN104398282B (en) | 2014-09-15 | 2014-09-15 | Can be used for the coil delivery system that electric heating is freed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104398282A true CN104398282A (en) | 2015-03-11 |
| CN104398282B CN104398282B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410466993.1A Active CN104398282B (en) | 2014-09-15 | 2014-09-15 | Can be used for the coil delivery system that electric heating is freed |
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| Country | Link |
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| CN (1) | CN104398282B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214205A (en) * | 2016-07-26 | 2016-12-14 | 加奇生物科技（上海）有限公司苏州分公司 | Arteries induction system |
| CN106691532A (en) * | 2017-01-18 | 2017-05-24 | 广州美诺微创医疗器械有限公司 | Spring ring and push rod device |
| CN108420486A (en) * | 2018-03-30 | 2018-08-21 | 北京泰杰伟业科技有限公司 | A kind of conveying device for embolism spring ring |
| CN111888062A (en) * | 2020-08-24 | 2020-11-06 | 北京泰杰伟业科技有限公司 | Blood flow guiding device conveying system capable of visually tracking and positioning and tracking and positioning method |
| WO2023143376A1 (en) * | 2022-01-26 | 2023-08-03 | 上海申淇医疗科技有限公司 | Conveying device for spring ring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2502644Y (en) * | 2001-11-19 | 2002-07-31 | 刘雨竹 | Electric releasing implantation device |
| US20060052815A1 (en) * | 2004-08-25 | 2006-03-09 | Microvention, Inc. | Thermal detachment system for implantable devices |
| US20100268204A1 (en) * | 2009-04-15 | 2010-10-21 | Microvention, Inc. | Implant Delivery System |
| CN203591293U (en) * | 2013-12-04 | 2014-05-14 | 王玉峰 | Spring ring system |
-
2014
- 2014-09-15 CN CN201410466993.1A patent/CN104398282B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2502644Y (en) * | 2001-11-19 | 2002-07-31 | 刘雨竹 | Electric releasing implantation device |
| US20060052815A1 (en) * | 2004-08-25 | 2006-03-09 | Microvention, Inc. | Thermal detachment system for implantable devices |
| US20100268204A1 (en) * | 2009-04-15 | 2010-10-21 | Microvention, Inc. | Implant Delivery System |
| CN203591293U (en) * | 2013-12-04 | 2014-05-14 | 王玉峰 | Spring ring system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214205A (en) * | 2016-07-26 | 2016-12-14 | 加奇生物科技（上海）有限公司苏州分公司 | Arteries induction system |
| CN106691532A (en) * | 2017-01-18 | 2017-05-24 | 广州美诺微创医疗器械有限公司 | Spring ring and push rod device |
| CN108420486A (en) * | 2018-03-30 | 2018-08-21 | 北京泰杰伟业科技有限公司 | A kind of conveying device for embolism spring ring |
| CN111888062A (en) * | 2020-08-24 | 2020-11-06 | 北京泰杰伟业科技有限公司 | Blood flow guiding device conveying system capable of visually tracking and positioning and tracking and positioning method |
| CN111888062B (en) * | 2020-08-24 | 2021-06-25 | 北京泰杰伟业科技有限公司 | Blood flow guiding device conveying system capable of visually tracking and positioning and tracking and positioning method |
| WO2023143376A1 (en) * | 2022-01-26 | 2023-08-03 | 上海申淇医疗科技有限公司 | Conveying device for spring ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104398282B (en) | 2016-08-24 |
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Address after: 101204 building 4, yard 21, Panlong West Road, Mafang Town, Pinggu District, Beijing Patentee after: Beijing Taijieweiye Technology Co.,Ltd. Address before: 101300 No. 1, CAIDA 3rd Street, Nancai Town, Shunyi District, Beijing Patentee before: BEIJING TAIJIE WEIYE TECHNOLOGY Co.,Ltd. |
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