CN103861195B - Trans-radial gets involved superslide seal wire - Google Patents

Trans-radial gets involved superslide seal wire Download PDF

Info

Publication number
CN103861195B
CN103861195B CN201210570427.6A CN201210570427A CN103861195B CN 103861195 B CN103861195 B CN 103861195B CN 201210570427 A CN201210570427 A CN 201210570427A CN 103861195 B CN103861195 B CN 103861195B
Authority
CN
China
Prior art keywords
wire
seal wire
nuclear core
wrapping
core silk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201210570427.6A
Other languages
Chinese (zh)
Other versions
CN103861195A (en
Inventor
窦克非
仪克晶
刘智勇
张久礼
吕冬
沈辉
郝升旗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai dragon minimally invasive medical equipment Co. Ltd.
Original Assignee
Shanghai Microport Medical Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Microport Medical Group Co Ltd filed Critical Shanghai Microport Medical Group Co Ltd
Priority to CN201210570427.6A priority Critical patent/CN103861195B/en
Priority to PCT/CN2013/087684 priority patent/WO2014090077A1/en
Publication of CN103861195A publication Critical patent/CN103861195A/en
Application granted granted Critical
Publication of CN103861195B publication Critical patent/CN103861195B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09058Basic structures of guide wires
    • A61M2025/09083Basic structures of guide wires having a coil around a core
    • A61M2025/09091Basic structures of guide wires having a coil around a core where a sheath surrounds the coil at the distal part
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09175Guide wires having specific characteristics at the distal tip

Abstract

The open a kind of trans-radial of the present invention gets involved superslide seal wire, and this seal wire includes: nuclear core silk, is positioned at the internal layer of seal wire;Wrapping wire, is positioned at the intermediate layer of seal wire and covers whole nuclear core silk, and wherein, the near-end of nuclear core silk is connected with the near-end of wrapping wire, and the far-end of nuclear core silk is in free state;And sheath, it is positioned at the outer layer of seal wire and covers the major part of wrapping wire.Compared with prior art, the present invention solves in trans-radial intervention diagnosis and treatment operation process that superslide seal wire supportive is poor, sense of touch feed back not good enough, be easily caused blood vessel injury, cannot the most repeatedly enter the problems such as conduit, improve the combination property of radiography seal wire comprehensively.

Description

Trans-radial gets involved superslide seal wire
Technical field
The present invention relates to single use medical instruments field, specifically, relate to a kind of use In Percutantnoeus coronary intervention diagnosis and treatment operation, particularly during trans-radial approach, it is achieved examine Break and treat conduit guiding in human body and the superslide seal wire of positioning action.
Background technology
Percutaneous coronary is got involved and is referred to through catheter diagnosis degree of stenosis and carry out phase The diagnosis that should process and Therapeutic Method.At present, Percutantnoeus coronary intervention diagnosis and treatment are performed the operation Get involved path main share split tremulous pulse and radial artery.1989, Canada doctor Campeau was first Wound Experience of Transradial carries out coronarography, Dutch doctor Kiemenij report in 1992 Accuse and used this approach to carry out the result treated.Along with Percutantnoeus coronary intervention diagnosis and treatment hands Art popularizing in the world, trans-radial carries out Percutantnoeus coronary intervention by extensively Be applied to clinical crown cardiopathia intervention diagnosis and treatment, and with its damage is little, Local Complications is few, Perioperatively limits tube drawing immediately little, postoperative to anticoagulant, antiplatelet drug and need not force Lie in bed 24 hours wait more " Wicresoft " advantage and extremely patient and get involved doctor favor.Mesh Front China carries out Percutantnoeus coronary intervention diagnosis by radial artery path every year and treatment has been performed the operation More than 500,000 examples.
In percutaneous coronary intervention diagnosis and treatment operation, radiography seal wire is a kind of important Apparatus, for angiography catheter being imported Ink vessel transfusing and resting on the position specified.Seal wire Properties (such as: the holding power of seal wire, the compliance of seal wire, the propelling movement power etc. of seal wire) It is whole to get involved the key factor that is smoothed out of operation.
The most modal radiography seal wire has traditional stainless steel silk be wound around seal wire and surpass Sliding seal wire (being commonly called as Misgurni anguillicaudati seal wire).Stainless steel silk is wound around seal wire and uses helical spring to be wound around core The form of silk, its head end is relatively big without reducing, hardness, compliance is poor, not easily pass through flexibility Bigger blood vessel.Additionally, conventional guide wires head end is without reducing, its head end is also made to be relatively large in diameter, Seal wire is relatively big with blood vessel wall frictional force in intervention procedure, push difficulty, be prone to cause blood vessel Spasm.Superslide seal wire has good smoothness because of it, substantially reduces the propelling movement power of seal wire And there is the strongest handling capacity, it is thus achieved that the accreditation of more and more doctors.But, superslide Seal wire does not uses or local uses the spring wrapping wire of conventional guide wires to design, surface The structure using polymer jacket to add hydrophilic coating all covers, and its surface is the most smooth, Operator's feel is not good enough, and high smoothness causes the loss of sense of touch feedback, at intervention diagnosis and Blood vessel injury is easily caused during treatment.The lighter causes the hemorrhage complications such as local hematoma, severe one Osteofascial compartment syndrome is caused to jeopardize patient vitals.According to statistics, have at present 5%~8% through oar Tremulous pulse diagnosis and treatment operative hemorrhage complication are directly or indirectly caused by superslide seal wire, superslide The use of seal wire increases operation risk, causes unnecessary misery for patient.
At present, in superslide seal wire common on market, straight type can be divided into common by head end shape Superslide seal wire and J-type elbow superslide seal wire.The former have brilliance by performance, but its table Face is the most smooth, is easily caused blood vessel injury during pushing.The latter is due to its head end Bending, adds buffering, effectively reduces the damage to blood vessel during pushing.But J Type seal wire after a procedure, owing to head end can not be made by the way of push-and-pull to straighten, it has not been convenient to again Secondary entrance conduit, adds the fussy degree of operation.In sum, current superslide seal wire Performance remains in open defect, possesses the biggest room for improvement.
The present situation of the performance according to above-mentioned Cardiac interventional class superslide seal wire, the deficiency being primarily present It is: 1) use polymer jacket while improving smoothness, reduce other property of product Can, mainly reduce seal wire supportive and safety, have impact on the feel of operator, increase Add the risk of blood vessel injury;2) although J-type elbow superslide seal wire can reduce blood vessel injury Risk, but be inconvenient to be again introduced into conduit, add the fussy degree of operation.
Summary of the invention
Present invention seek to address that the above-mentioned one or more problems mentioned, it is provided that one can be Trans-radial intervention diagnosis and treatment operation process have good combination property and can repeatedly enter Enter the superslide seal wire of conduit.
According to an aspect of the present invention, it is provided that a kind of seal wire, including nuclear core silk, this nuclear core Silk is positioned at the internal layer of seal wire;Wrapping wire, this wrapping wire is positioned at the intermediate layer of seal wire and covers whole Nuclear core silk, wherein, the near-end of nuclear core silk is connected with the near-end of wrapping wire, the far-end of nuclear core silk In free state;And sheath, this sheath is positioned at the outer layer of seal wire and covers the big of wrapping wire Part.
Preferably, seal wire also includes safe core filaments, and this safe core filaments is positioned at nuclear core silk and wrapping wire Between, safe core filaments the most respectively with being proximally and distally connected of wrapping wire.
Preferably, seal wire also includes coating, and this coating is applied on the surface of sheath.
Preferably, the distal end tapers down of nuclear core silk.
Preferably, wrapping wire is helical spring wrapping wire.
Preferably, the part not covered by sheath of wrapping wire is positioned at the subregion in the middle part of seal wire, The camber of guidewire distal region can be manipulated by this part wrapping wire of push-and-pull.
Preferably, the part not covered by sheath of wrapping wire is positioned at the proximal end region of seal wire, logical Cross this part wrapping wire of push-and-pull and can manipulate the camber of guidewire distal region.
Preferably, safe core filaments is flat and the side being positioned at nuclear core silk.
Preferably, nuclear core silk uses Nitinol, rustless steel, Ti-Nb alloy, Ti-Ni-X Alloy, Cu-Zn alloy, Cu-Zn-Ni alloy, Fe-Ni alloy/C or Fe-Mn alloy manufacture.
Preferably, safe core filaments is stainless steel silk.
Preferably, sheath is polymer jacket.
Preferably, coating is Teflon, PVP, polyethylene, polypropylene, polrvinyl chloride, gathers Ester, polyamide, polyimides, polyurethanes, polystyrene, Merlon, silicon Resin, fluor resin coating or include the composite coating of described any combination thereof.
Preferably, the near-end of nuclear core silk welds together with the near-end of wrapping wire.
Preferably, safe core filaments the most respectively with proximally and distally the welding of wrapping wire Together.
According to a further aspect in the invention, it is provided that a kind of use can enter leading of conduit repeatedly The method of silk, including:
Above-mentioned seal wire is provided;
The far-end making seal wire enters in conduit and pushes seal wire;
When needed, by pulling the part not covered by sheath of described wrapping wire so that lead Silk remote area bending, to pass through bending channel;
When operation completes, extract seal wire out;
By promoting the part not covered by sheath of described wrapping wire so that guidewire distal region Straighten, so that the far-end of seal wire can be again introduced into conduit.
Compared with prior art, the present invention solves trans-radial intervention diagnosis and treatment operation During superslide seal wire supportive is poor, sense of touch feedback is not good enough, be easily caused blood vessel injury, nothing Method enters the problems such as conduit the most repeatedly, improves the combination property of radiography seal wire comprehensively.
Accompanying drawing explanation
Fig. 1 is the Longitudinal cross section schematic of the seal wire according to one embodiment of the present invention;
Fig. 2 is that the remote area of seal wire is from bending the process schematic straightened;
Fig. 3 is that after seal wire is drawn out of, its remote area straightens process schematic;And
Fig. 4 is the Longitudinal cross section schematic of the seal wire according to another embodiment of the invention.
Detailed description of the invention
In this manual, same reference is used for representing same ingredient.
Fig. 1 is the Longitudinal cross section schematic of the seal wire according to one embodiment of the present invention.Ginseng According to Fig. 1, seal wire mainly includes nuclear core silk 1, wrapping wire 2 and sheath 3.Below will for this three Each in individual part is described in detail.
Nuclear core silk 1 is positioned at the internal layer of seal wire, its circular in cross-section or any other is suitable Shape.The far-end of nuclear core silk 1 uses reducing to process, and is preferably tapered, the most permissible The far-end making seal wire has more preferable compliance, reduces far-end hardness and improve the propelling movement of seal wire Performance.Nuclear core silk 1 can use Nitinol, rustless steel, Ti-Nb alloy, Ti-Ni-X Alloy, Cu-Zn alloy, Cu-Zn-Ni alloy, Fe-Ni alloy/C or Fe-Mn alloy etc. have The material of excellent in shape memory ability is made, thus provides good holding power for seal wire.
Wrapping wire 2 is positioned at the intermediate layer of seal wire, and preferably helical spring wrapping wire.Wrapping wire 2 Covering whole nuclear core silk 1, the near-end of nuclear core silk 1 links together with the near-end of wrapping wire 2, and The far-end of nuclear core silk 1 is in free state, is coated with by wrapping wire 2 but is not attached to together.Excellent Selection of land, the near-end of nuclear core silk 1 is welded to connect with the near-end of wrapping wire 2, naturally it is also possible to use Other material connected mode such as such as bond, be clasped.
Sheath 3 is positioned at the outer layer of seal wire and covers the major part of wrapping wire 2 equably.According to Embodiment shown in Fig. 1, in addition to the subregion in the middle part of seal wire, other region is by sheath 3 Uniform fold, say, that the part not covered by sheath of wrapping wire 2 is positioned in the middle part of seal wire Subregion, the camber of guidewire distal region can be manipulated by this part wrapping wire of push-and-pull. According to the embodiment shown in Fig. 4, in addition to the proximal end region of seal wire, other region is by sheath 3 Uniform fold, say, that the part not covered by sheath of wrapping wire 2 is positioned at the near of seal wire End regions, can manipulate the camber of guidewire distal region by this part wrapping wire of push-and-pull.Ability Field technique personnel it is also understood that the exposed part of wrapping wire 2 can be according to the different behaviour of doctor Select as custom, and be not limited to above two embodiment.Sheath 3 is preferably polymerization Thing sheath, naturally it is also possible to use the material that other is suitable.
According to the structure of above-mentioned seal wire, compared with tradition superslide seal wire, the seal wire of the present invention Wrapping wire covers whole seal wire, and polymer jacket is not completely covered.Wrapping wire covers whole Seal wire is in order to improve handling, supportive and the moment of torsion transmission performance of seal wire, and can carry Make feel more preferably for good sense of touch feedback.Polymer jacket is not completely covered, the most just Being to say, part wrapping wire is exposed outside, and this allows to pull this part wrapping wire by push-and-pull Manipulate the camber in wire distal plastotype region.Fig. 2 and Fig. 3 clearly demonstrates and passes through Push-and-pull pull exposed wrapping wire part to adjust the degree of crook in wire distal plastotype region, side Just seal wire repeatedly enters conduit, solves elbow superslide wire distal the most well and is difficult to It is straightened, the problem increasing operation fussy degree.
Next proceeding to reference to Fig. 1, in addition to above mentioned three parts, seal wire is all right Including safe core filaments 5, it is completely covered by wrapping wire 2 between nuclear core silk 1 and wrapping wire 2. According to the embodiment shown in Fig. 1, safe core filaments 5 for flat and is positioned at nuclear core silk 1 Side, the two ends of safe core filaments 5 respectively with being proximally and distally connected of wrapping wire 2, be preferably Weld together, naturally it is also possible to use other material connected modes such as bonding, be clasped. Additionally, it may occur to persons skilled in the art that, safe core filaments 5 is around nuclear core silk 1 ringwise Ground is between nuclear core silk 1 and wrapping wire 2.Safe core filaments 5 can provide duplicate protection, keeps away Exempt from wrapping wire 2 to rupture and leave in the blood vessel, moreover it is possible to conduction axial tensile force, adjust conductive filament head The camber in end plastotype region.Safe core filaments 5 is preferably stainless steel silk, naturally it is also possible to use Other suitable material.
Seal wire can also include the coating 4 being coated on the surface of sheath 3.Coating 4 can be special Fluorine dragon, PVP, polyethylene, polypropylene, polrvinyl chloride, polyester, polyamide, polyimides, Polyurethanes, polystyrene, Merlon, silicones, fluor resin coating or include The composite coating of described any combination thereof.
Seal wire according to the present invention mentioned above can enter conduit in use repeatedly, connects down Will be described.First, the far-end making seal wire enters in conduit and pushes seal wire; Then, when needed, by pulling the part not covered by sheath of wrapping wire so that seal wire Remote area bends, to pass through bending channel;When operation completes, extract seal wire out; Then, by promoting the part not covered by sheath of wrapping wire so that guidewire distal region becomes Directly, thus beneficially the far-end of seal wire is again introduced in conduit.
It will be apparent to those skilled in the art that, disclosed embodiment can be made various repairing Change with modification without deviating from the scope of the present invention.Based on this specification with to disclosed herein interior The practice held, those skilled in the art it will also be appreciated that other embodiment.This specification and Example should be counted as being merely exemplary, and the true scope of the present invention is wanted by appended right Ask and equivalent indicates.

Claims (14)

1. an elbow seal wire, including:
Nuclear core silk, described nuclear core silk is positioned at the internal layer of described seal wire;
Wrapping wire, described wrapping wire is positioned at the intermediate layer of described seal wire and covers whole nuclear core silk, Wherein, the described near-end of nuclear core silk is connected with the near-end of wrapping wire, the far-end of described nuclear core silk In free state;And
Sheath, described sheath is positioned at the outer layer of described seal wire and covers the big portion of described wrapping wire Point, the partial denudation not covered by described sheath of described wrapping wire is outside, naked by push-and-pull The described part being exposed can manipulate the camber of the remote area of described seal wire.
Elbow seal wire the most according to claim 1, also includes safe core filaments, described peace Core filaments is between described nuclear core silk and wrapping wire entirely, proximally and distally dividing of described safe core filaments Not with being proximally and distally connected of described wrapping wire.
Elbow seal wire the most according to claim 1 and 2, also includes coating, described painting Layer is applied on the surface of described sheath.
Elbow seal wire the most according to claim 1, wherein, the far-end of described nuclear core silk It is tapered.
Elbow seal wire the most according to claim 1, wherein, described wrapping wire is spiral bullet Spring wrapping wire.
Elbow seal wire the most according to claim 1, wherein, not protected of described wrapping wire The part that set covers is positioned at the subregion in the middle part of seal wire.
Elbow seal wire the most according to claim 1, wherein, not protected of described wrapping wire The part that set covers is positioned at the proximal end region of seal wire.
Elbow seal wire the most according to claim 2, wherein, described safe core filaments is flat Flat-shaped and be positioned at the side of nuclear core silk.
Elbow seal wire the most according to claim 1, wherein, described nuclear core silk uses nickel Titanium alloy, rustless steel, Ti-Nb alloy, Ti-Ni-X alloy, Cu-Zn alloy, Cu-Zn-Ni Alloy, Fe-Ni alloy/C or Fe-Mn alloy manufacture.
Elbow seal wire the most according to claim 2, wherein, described safe core filaments is not Rust steel wire.
11. elbow seal wires according to claim 1, wherein, described sheath is polymer Sheath.
12. elbow seal wires according to claim 3, wherein, described coating be Teflon, PVP, polyethylene, polypropylene, polrvinyl chloride, polyester, polyamide, polyimides, poly-ammonia Carbamate, polystyrene, Merlon, silicones, fluor resin coating or include Teflon Dragon, PVP, polyethylene, polypropylene, polrvinyl chloride, polyester, polyamide, polyimides, Polyurethanes, polystyrene, Merlon, silicones, the combination in any of fluororesin Composite coating.
13. elbow seal wires according to claim 1, wherein, the near-end of described nuclear core silk Weld together with the near-end of wrapping wire.
14. elbow seal wires according to claim 2, wherein, described safe core filaments near End and far-end respectively with proximally and distally the welding together of described wrapping wire.
CN201210570427.6A 2012-12-14 2012-12-14 Trans-radial gets involved superslide seal wire Active CN103861195B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210570427.6A CN103861195B (en) 2012-12-14 2012-12-14 Trans-radial gets involved superslide seal wire
PCT/CN2013/087684 WO2014090077A1 (en) 2012-12-14 2013-11-22 Transradial intervention super-smooth guidewire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210570427.6A CN103861195B (en) 2012-12-14 2012-12-14 Trans-radial gets involved superslide seal wire

Publications (2)

Publication Number Publication Date
CN103861195A CN103861195A (en) 2014-06-18
CN103861195B true CN103861195B (en) 2016-10-26

Family

ID=50900571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210570427.6A Active CN103861195B (en) 2012-12-14 2012-12-14 Trans-radial gets involved superslide seal wire

Country Status (2)

Country Link
CN (1) CN103861195B (en)
WO (1) WO2014090077A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104436409A (en) * 2014-11-28 2015-03-25 中山市普利斯微创介入医械有限公司 Anti-folding pigtail catheter
CN104399175A (en) * 2014-11-28 2015-03-11 中山市普利斯微创介入医械有限公司 Anti-folding guide wire
CN104383632A (en) * 2014-11-28 2015-03-04 中山市普利斯微创介入医械有限公司 Anti-folding central venous catheter
US10639496B2 (en) 2016-12-28 2020-05-05 Hua Shang Blood vessel optical fiber guide wire
CN106512232A (en) * 2016-12-28 2017-03-22 尚华 Vascular optical fiber guide wire
KR20190103437A (en) * 2017-03-10 2019-09-04 아사히 인텍크 가부시키가이샤 Catheter
KR102372611B1 (en) * 2017-03-22 2022-03-10 후아 상 How to use shape memory alloy hypotube and vascular fiber guidewire
WO2018170776A1 (en) 2017-03-22 2018-09-27 尚华 Magnetic optical fiber coupling apparatus
CN106955423B (en) * 2017-03-22 2020-02-04 尚华 Blood vessel optical fiber catheter
WO2018170789A1 (en) * 2017-03-22 2018-09-27 尚华 Blood vessel optical fiber catheter
CN106963992B (en) * 2017-03-22 2019-02-22 尚华 A kind of marmem hypotube and its application in blood vessel optical fiber seal wire
CN107456647A (en) * 2017-08-03 2017-12-12 湖南埃普特医疗器械有限公司 A kind of seal wire and preparation method thereof
CN107362437A (en) * 2017-08-03 2017-11-21 湖南埃普特医疗器械有限公司 A kind of predilation seal wire and preparation method thereof
CN110013596B (en) * 2019-04-24 2020-02-11 广州启骏生物科技有限公司 Guide wire for percutaneous puncture of catheter
CN113084341A (en) * 2019-12-19 2021-07-09 先健科技(深圳)有限公司 Guide wire, welding device and welding method
CN114618070A (en) * 2022-01-27 2022-06-14 聚辉医疗科技(深圳)有限公司 Micro-guide wire
CN114711955B (en) * 2022-05-11 2022-11-01 上海安通医疗科技有限公司 Electric control ablation catheter for radial artery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798598A (en) * 1986-05-23 1989-01-17 Sarcem S.A. Guide for a catheter
US4932419A (en) * 1988-03-21 1990-06-12 Boston Scientific Corporation Multi-filar, cross-wound coil for medical devices
US5084022A (en) * 1989-10-04 1992-01-28 Lake Region Manufacturing Company, Inc. Graduated guidewire

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8241230B2 (en) * 2007-09-25 2012-08-14 Cook Medical Technologies Llc Variable stiffness wire guide
US8864685B2 (en) * 2010-10-22 2014-10-21 Cook Medical Technologies Llc Wire guide having two safety wires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798598A (en) * 1986-05-23 1989-01-17 Sarcem S.A. Guide for a catheter
US4932419A (en) * 1988-03-21 1990-06-12 Boston Scientific Corporation Multi-filar, cross-wound coil for medical devices
US5084022A (en) * 1989-10-04 1992-01-28 Lake Region Manufacturing Company, Inc. Graduated guidewire

Also Published As

Publication number Publication date
CN103861195A (en) 2014-06-18
WO2014090077A1 (en) 2014-06-19

Similar Documents

Publication Publication Date Title
CN103861195B (en) Trans-radial gets involved superslide seal wire
JP7282649B2 (en) Radial and transendocardial delivery catheters
CN101933821B (en) Mciro-catheter
JP5020085B2 (en) Variable flexible wire guide
US6544215B1 (en) Steerable device for introducing diagnostic and therapeutic apparatus into the body
CN108430563B (en) Flexible conduit
EP1803484B1 (en) Variable stiffness guidewire
US5171233A (en) Snare-type probe
JP2004533271A (en) Steerable guidewire and method of use
JP2008513183A5 (en)
CN203154553U (en) Guide wire for transradial artery interventional imaging
JPH1080490A (en) Multilayered distal catheter section
JPH07308385A (en) Catheter device
US20100168619A1 (en) Combination wire guide and method of use thereof
CN111053593B (en) Formable reentry devices and systems and methods therefor
CN115120843A (en) Multi-segment controlled bend catheter with asymmetric bend profile
US20090312747A1 (en) Wire Guide Having Variable Flexibility and Method of Use Thereof
CN109984779B (en) Conveying cable and preparation method thereof
US20210213250A1 (en) Catheter with braid and radiopaque section
CN214343900U (en) Catheter sheath body and catheter sheath
JP2013176488A (en) Guide wire
WO2023142428A1 (en) Splined basket ablation catheter capable of being bent bidirectionally
US20240091490A1 (en) Introducer with reinforcement element having a more dense distal portion and related systems and methods
US20240130757A1 (en) Single-loop or multiple-loop snare and method of forming same
WO2024070960A1 (en) Catheter and treatment method using same

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190117

Address after: Room 201, 2nd floor, Building 5, 1303 Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province

Patentee after: Minimally invasive Longmai Medical Technology (Jiaxing) Co., Ltd.

Address before: 201 203 No. 501 Newton Road, Zhangjiang High-tech Park, Pudong, Shanghai

Patentee before: Shanghai MicroPort Medical Equipment (Group) Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191223

Address after: 201203 Room 102, building 2, No. 501, Newton Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai

Patentee after: Shanghai dragon minimally invasive medical equipment Co. Ltd.

Address before: Room 201, 2nd floor, Building 5, 1303 Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province

Patentee before: Minimally invasive Longmai Medical Technology (Jiaxing) Co., Ltd.