WO2022267413A1 - 对吻导丝 - Google Patents

对吻导丝 Download PDF

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Publication number
WO2022267413A1
WO2022267413A1 PCT/CN2021/141639 CN2021141639W WO2022267413A1 WO 2022267413 A1 WO2022267413 A1 WO 2022267413A1 CN 2021141639 W CN2021141639 W CN 2021141639W WO 2022267413 A1 WO2022267413 A1 WO 2022267413A1
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WO
WIPO (PCT)
Prior art keywords
guide wire
connecting part
kissing
connecting portion
magnetic medium
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PCT/CN2021/141639
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English (en)
French (fr)
Inventor
张福先
王海军
林龑
王昊飞
陶忠
Original Assignee
柏为（武汉）医疗科技股份有限公司
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Publication of WO2022267413A1 publication Critical patent/WO2022267413A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09133—Guide wires having specific material compositions or coatings; Materials with specific mechanical behaviours, e.g. stiffness, strength to transmit torque
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09175—Guide wires having specific characteristics at the distal tip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/12—Blood circulatory system

Definitions

  • the present disclosure relates to medical devices, and more particularly, to a kissing guidewire.
  • the guide wire plays a role in guiding various interventional catheters and implanted instruments into the target site of the biological lumen during interventional therapy, such as in percutaneous peripheral angioplasty, interventional treatment of cardiovascular diseases and other operations.
  • the guide wire plays the role of introducing, supporting, opening and exchanging in the interventional operation.
  • the guide wire can guide and support the catheter through subcutaneous tissue, blood vessel wall and other soft tissues, and enter the blood vessel through the puncture hole; guide the catheter through tortuous and hardened blood vessels, and selectively or super-selectively enter the branch of the blood vessel for inspection; strengthen the hardness of the catheter to facilitate manipulation of the catheter Wait.
  • the purpose of the present disclosure is to provide a new technical solution for kissing guide wire.
  • An embodiment of the present disclosure provides a kissing guide wire, including a first guide wire and a second guide wire, the end of the first guide wire is provided with a first connecting part, and the end of the second guide wire is provided with There is a second connecting part, the first connecting part and/or the second connecting part are magnetic and can attract each other, when the first connecting part and the second connecting part are in an attracting state, the first connecting part The connecting part is engaged with the second connecting part.
  • first guide wire and the first connecting part are connected through a first rotating shaft
  • second guide wire and the second connecting part are connected through a second rotating shaft
  • first rotation axis is arranged perpendicular to the first guide wire
  • second rotation axis is arranged perpendicular to the second guide wire
  • the first connecting part is provided with a first slot
  • the second connecting part is provided with a hook, and when the first connecting part and the second connecting part are in an attracting state, the hook Insert it into the first card slot.
  • a second locking slot extending toward the first guide wire is opened in the first locking slot, and the hook is bent toward the second guide wire to form a bent portion, the When the first connecting part and the second connecting part are in a suction state, the bending part is inserted into the second engaging groove.
  • the first card slot is opened on the top surface of the first connecting part, and a plurality of grooves are also opened on the top surface of the first connecting part;
  • the hook is provided on the second connecting part part, the bottom surface of the second connecting part is also provided with a plurality of ribs; when the first connecting part and the second connecting part are in the suction state, the plurality of ribs are embedded in the plurality of ribs in turn. inside the groove.
  • the plurality of grooves are provided around the periphery of the locking groove, and the plurality of ribs are arranged around the periphery of the hook.
  • the second card slot and the bending portion are coated with a magnetic medium layer, and the material of the magnetic medium layer is a neodymium iron boron magnet, samarium cobalt magnet, alnico magnet or ferrite permanent magnet.
  • the material of the magnetic medium layer is a neodymium iron boron magnet, samarium cobalt magnet, alnico magnet or ferrite permanent magnet.
  • One or more of the magnetic materials, the magnetic properties of the second slot and the magnetic medium layer coated on the bent portion are opposite.
  • peripheral sides of the first connecting portion and the second connecting portion are both smooth arc surfaces.
  • the plurality of grooves and the plurality of ribs are coated with a magnetic medium layer, and the material of the magnetic medium layer is a neodymium iron boron magnet, samarium cobalt magnet, alnico magnet or ferrite
  • the material of the magnetic medium layer is a neodymium iron boron magnet, samarium cobalt magnet, alnico magnet or ferrite
  • the magnetism of the magnetic medium layer coated on the adjacent grooves is opposite, and the magnetic medium coated on the rib and the corresponding groove The layers are magnetically opposite.
  • the inventors of the present disclosure found that, in the prior art, in the process of using a guide wire for relatively complex vascular choroids, it is more difficult to operate in the process of dredging blood vessels with a single guide wire, which prolongs the treatment time and is easy to It leads to missing the best time for treatment; and when a single guide wire is used in complex vascular veins, it is easy to cause damage to the vessel wall and cause secondary damage to the patient. Therefore, the technical tasks or technical problems to be solved by the present disclosure are never thought of or anticipated by those skilled in the art, so the present disclosure is a new technical solution.
  • the first connecting part and the second connecting part enable the first guidewire and the second guidewire to be magnetically docked quickly in the blood vessel; at the same time, the first connecting part
  • the clamping structure with the second connecting part strengthens the connection strength between the first guide wire and the second guide wire, and speeds up the treatment.
  • FIG. 1 is one of the structural schematic diagrams of a kissing guide wire in an embodiment of the present disclosure
  • Fig. 2 is the second structural schematic diagram of the kissing guide wire in the embodiment of the present disclosure
  • Fig. 3 is a structural schematic diagram of a kissing guide wire in an actual application process in an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a kissing guide wire, including a first guide wire 1 and a second guide wire 2 , the end of the first guide wire 1 is provided with a first connection part 11, the end of the second guide wire 2 is provided with a second connection part 21, the first connection part 11 and/or the second connection part 21 are magnetic and can attract each other, the first connection When the part 11 and the second connecting part 21 are in the suction state, the first connecting part 11 and the second connecting part 21 are clamped.
  • the kissing guide wire in this embodiment is inserted into a relatively complicated vascular choroid for treatment, it is usually encountered that two branch blood vessels converge to form a main blood vessel at a certain place.
  • a guide wire is bent in the blood vessel to dredge the two branch blood vessels. If the angle between the two branch blood vessels is small, a single guide wire needs to be bent at a relatively large angle in the blood vessel to achieve the effect of dredging, which not only takes a long time, but also easily causes the rupture of the blood vessel.
  • the first connecting part 11 and the second connecting part 21 are magnetic.
  • Part 21 enters the patient's body from two branch blood vessels respectively.
  • the first connecting part 11 and the second connecting part 21 are moved in the two branch vessels until the first connecting part 11 and the second connecting part 21 are close to each other.
  • the magnetism of the first connecting portion 11 and the second connecting portion 21 makes the first connecting portion 11 and the second connecting portion 21 attract and connect to each other.
  • the first connecting part 11 and the second connecting part 21 are clamped, which strengthens the connection strength between the first guide wire 1 and the second guide wire 2 .
  • any one of the first guide wire 1 or the second guide wire 2 can be pulled to pull the kissing guide wire out of the patient's body, which is very easy to operate and shortens the treatment time.
  • the first connecting portion 11 and the second connecting portion 21 may be coated with a magnetic medium layer, and the magnetic medium layer can make the first connecting portion 11 and the second connecting portion 21 magnetic.
  • the magnetic medium layer on the first connecting part 11 is N pole
  • the magnetic medium layer on the second connecting part 21 is S pole.
  • any one of the first connecting portion 11 and the second connecting portion 21 can be selected to be made of a metal material, and the other is coated with a magnetic medium layer. It is covered with a magnetic medium layer, so that the magnetic connection between the first connecting part 11 and the second connecting part 21 can also be realized.
  • the first guide wire 1 and the first connecting portion 11 are connected through a first rotating shaft 12
  • the second guide wire 2 and the second connecting portion 21 It is connected through the second rotating shaft 22 . Since the direction of the blood vessels in the human body is relatively complicated, when dredging the "herringbone"-shaped blood vessels, the first connecting part 11 and the second connecting part 21 are usually connected at the top intersection of the "herringbone"-shaped blood vessels.
  • the first rotating shaft 12 enables the first connecting part 11 to rotate relative to the first guide wire 1
  • the second rotating shaft 22 enables the first connecting part 11 to rotate relative to the first guide wire 1 .
  • the two connecting parts 21 can rotate relative to the second guide wire 2.
  • the first rotating shaft 12 and the second rotating shaft 22 can make the second guide wire 2
  • the first connecting part 11 and the second connecting part 21 are bent and overlapped by magnetic attraction, which increases the connecting area of the first connecting part 11 and the second connecting part 21, and further improves the strength of the first connecting part 11 and the second connecting part. 21 connection strength.
  • the first rotating shaft 12 is arranged perpendicular to the first guide wire 1
  • the second rotating shaft 22 is arranged perpendicular to the second guide wire 2
  • the first rotating shaft 12 is perpendicular to the first guide wire 1
  • the second The second rotating shaft 22 is perpendicular to the second guide wire 2.
  • the first connecting portion 11 is provided with a first slot 111
  • the second connecting portion 21 is provided with a hook 211
  • the first connecting portion 11 When the second connecting portion 21 is in a suction state, the hook 211 is inserted into the first slot 111 .
  • the hook 211 When the first connecting part 11 and the second connecting part 21 are magnetically connected, the hook 211 is inserted into the first slot 111, and the cooperation between the hook 211 and the first slot 111 strengthens the first connecting part 11 and the second slot.
  • the connection strength between the connection parts 21 is provided with a first slot 111
  • the second connecting portion 21 is provided with a hook 211
  • the first connecting portion 11 When the second connecting portion 21 is in a suction state, the hook 211 is inserted into the first slot 111 .
  • the hook 211 When the first connecting part 11 and the second connecting part 21 are magnetically connected, the hook 211 is inserted into the first slot 111, and the cooperation between the hook 211 and the first slot 111 strengthens the first connecting
  • a second locking slot 112 extending toward the first guide wire 1 is opened in the first locking slot 111 , and the hook 211 faces toward the second guiding wire 1 .
  • the wire 2 is bent to form a bent portion 212 , and when the first connecting portion 11 and the second connecting portion 21 are in a suction state, the bent portion 212 is inserted into the second engaging groove 112 .
  • the hook 211 is inserted into the first slot 111 , and the bending portion 212 is inserted into the second slot 112 .
  • the cooperation between the hook 211 and the first slot 111 , and the cooperation between the bent portion 212 and the second slot 112 can further strengthen the connection strength between the first connecting portion 11 and the second connecting portion 21 .
  • the kissing guide wire can quickly overlap the first connecting part 11 and the second connecting part 21 through magnetic attraction, and form a pre-fixation.
  • the cooperation of the bending part 212 and the second draw-in groove 112 strengthens the connection strength of the kissing guide wire, and avoids the gap between the first connecting part 11 and the second connecting part 21 in the process of pulling the kissing guide wire out of the patient's body. Intermittent disconnection causes the first guide wire 1 or the second guide wire 2 to remain in the patient's body and thus cause secondary damage.
  • the first card slot 111 is opened on the top surface of the first connecting part 11, and the top surface of the first connecting part 11 is also provided with a plurality of grooves 113.
  • the hook 211 is disposed on the bottom surface of the second connecting portion 21 , and the bottom surface of the second connecting portion 21 is also provided with a plurality of ribs 213 .
  • the plurality of ribs 213 are inserted into the plurality of grooves 113 in sequence.
  • the hook 211 is inserted into the first slot 111, and the bending part 212 is inserted into the Inside the second card slot 112 .
  • the hook 211 and the first slot 111 limit the first connecting portion 11 and the second connecting portion 21 in the horizontal direction. Since the second card slot 112 is opened on the inner wall of the first card slot 111, by inserting the bent portion 212 into the second card slot 112, the vertical alignment between the first connecting part 11 and the second connecting part 21 can be achieved. limit.
  • a plurality of grooves 113 are formed on the top surface of the first connecting part 11 , and a plurality of ribs 213 are provided on the bottom surface of the second connecting part 21 .
  • the ribs 213 are embedded in the grooves 113 one by one, so that the first connecting part 11 and the second connecting part 21 are further connected in the horizontal direction. limit.
  • the plurality of grooves 113 are provided around the periphery of the locking groove, and the plurality of ribs 213 are provided around the periphery of the hook 211 .
  • four grooves 113 can be provided, and four convex ribs 213 can be provided.
  • the groove 113 is arranged around the card slot in a rectangular shape, and the convex ribs 213 are also arranged on the hook 211 in a rectangular shape corresponding to the groove 113. around. After the first connecting portion 11 and the second connecting portion 21 are magnetically connected, the rib 213 is inserted into the groove 113 .
  • the ribs 213 and the grooves 113 are arranged in a rectangular shape, they can better limit the first connecting part 11 and the second connecting part 21 in the horizontal direction, and avoid the first connecting part 11 and the second connecting part. 21 is disconnected in the patient's body, and the connection strength between the first connecting part 11 and the second connecting part 21 is increased.
  • the second card slot 112 and the bent portion 212 are coated with a magnetic medium layer, and the material of the magnetic medium layer is a neodymium iron boron magnet, samarium cobalt One or more of magnets, alnico magnets or ferrite permanent magnet materials, and the magnetic properties of the second card slot 112 and the magnetic medium layer coated on the bending portion 212 are opposite.
  • the magnetic medium layer coated on the second slot 112 and the bent portion 212 is not limited to NdFeB magnets, SmCo magnets, AlNiCo magnets or ferrite permanent magnet materials.
  • the second locking slot 112 and the bending portion 212 can be coated with opposite magnetic poles, as long as the second locking slot 112 and the bending portion 212 are attracted to each other.
  • the peripheral sides of the first connecting part 11 and the second connecting part 21 are both smooth arc surfaces.
  • the peripheral sides of the first connecting part 11 and the second connecting part 21 are a smooth arc surface, it can effectively avoid the rupture of the blood vessel wall when the first guide wire 1 and the second guide wire 2 are inserted into the blood vessel, and at the same time Avoid breaking the blood vessel wall when the first guide wire 1 and the second guide wire 2 are pulled out of the patient's body.
  • the peripheral sides of the first connecting portion 11 and the second connecting portion 21 as smooth arc surfaces, secondary damage to the blood vessel wall can be effectively avoided.
  • the groove 113 and the rib 213 are coated with a magnetic medium layer, and the material of the magnetic medium layer is a neodymium-iron-boron magnet, a samarium-cobalt magnet, an aluminum One or more of nickel-cobalt magnets or ferrite permanent magnet materials, the magnetism of the magnetic medium layer coated on the adjacent grooves 113 is opposite, and the convex ribs 213 and the corresponding concave The magnetism of the magnetic medium layer coated on the groove 113 is opposite.
  • the magnetic medium layer coated on the rib 213 and in the groove 113 is not limited to NdFeB magnet, SmCo magnet, AlNiCo magnet or ferrite permanent magnet material, as long as it is Any material that can achieve the effect of attracting the ribs 213 and the grooves 113 by coating the ribs 213 and the grooves 113 with opposite magnetic poles can be used.
  • the opposite magnetic medium layer on the rib 213 and the groove 113 after the first connecting part 11 and the second connecting part 21 are connected, the rib 213 and the groove 113 attract each other, which further strengthens the first connecting part 11 and the second connecting part 21.
  • the connection strength between the first connecting part 11 and the second connecting part 21 in the vertical direction ensures that the first guide wire 1 and the second guide wire 2 are connected by the first connecting part 11 and the second connecting part 21 during the interventional treatment. the stability of the connection.

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Abstract

一种对吻导丝，包括第一导丝（1）和第二导丝（2），第一导丝（1）的端部设置有第一连接部（11），第二导丝（2）的端部设置有第二连接部（21），第一连接部（11）和/或第二连接部（21）具有磁性且能够相互吸引，第一连接部（11）和第二连接部（21）处于吸引状态时，第一连接部（11）和第二连接部（21）卡接。当在介入治疗时使用该对吻导丝时，第一连接部（11）和第二连接部（21）使第一导丝（1）和第二导丝（2）在血管中能够快速磁吸对接；同时，第一连接部（11）和第二连接部（21）的卡接结构加强了第一导丝（1）和第二导丝（2）之间的连接强度，并加快了治疗速度。

Description

对吻导丝
本申请要求于2021年06月22日提交中国专利局的申请号为202110694578.1、申请名称为“对吻导丝”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及医疗器械，更具体地，涉及一种对吻导丝。
背景技术
导丝在介入治疗过程中起到引导各种介入导管和植入器械进入生物体管腔的目标部位的作用，例如在经皮外周血管形成手术、心血管疾病介入治疗等手术中。而导丝在介入术中起到导入、支撑、开通、交换的作用。导丝能够引导并支持导管通过皮下组织、血管壁等软组织，经穿刺孔进入血管；引导导管通过迂曲、硬化的血管，选择性或超选择性进入检查的血管分支；加强导管硬度，利于操纵导管等。
然而，在对较为复杂的血管脉络使用导丝的过程中，在单根导丝疏通血管的过程中操作难度较大，这延长了治疗时间，并容易导致错过治疗的最佳时间；且单根导丝在复杂的血管脉络中使用时，容易造成血管壁的破损而对病人造成二次损伤。
发明内容
本公开的目的是提供一种对吻导丝的新技术方案。
本公开实施例提供了一种对吻导丝，包括第一导丝和第二导丝，所述第一导丝的端部设置有第一连接部，所述第二导丝的端部设置有第二连接部，所述第一连接部和/或所述第二连接部具有磁性且能够相互吸引，所述第一连接部和所述第二连接部处于吸引状态时，所述第一连接部和所述第 二连接部卡接。
可选地，所述第一导丝和所述第一连接部通过第一转轴连接，所述第二导丝和所述第二连接部通过第二转轴连接。
可选地，所述第一转轴垂直于所述第一导丝设置，所述第二转轴垂直于所述第二导丝设置。
可选地，所述第一连接部开设有第一卡槽，所述第二连接部设置有卡勾，所述第一连接部和所述第二连接部处于吸引状态时，所述卡勾嵌入所述第一卡槽内。
可选地，所述第一卡槽内开设有向所述第一导丝延伸的第二卡槽，所述卡勾朝所述第二导丝方向弯折而形成有弯折部，所述第一连接部和所述第二连接部处于吸引状态时，所述弯折部嵌入所述第二卡槽内。
可选地，所述第一卡槽开设于所述第一连接部的顶面，所述第一连接部的顶面还开设有多个凹槽；所述卡勾设置于所述第二连接部的底面，所述第二连接部的底面还设置有多条凸棱；所述第一连接部和所述第二连接部处于吸引状态时，所述多条凸棱依次嵌入所述多个凹槽内。
可选地，所述多个凹槽环绕所述卡槽的四周开设，所述多条凸棱环绕所述卡勾的四周设置。
可选地，所述第二卡槽和所述弯折部上涂覆有磁性介质层，所述磁性介质层的材料为钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料中的一种或多种，所述第二卡槽和所述弯折部上涂覆的所述磁性介质层的磁性相反。
可选地，所述第一连接部和所述第二连接部的周侧均为圆滑弧面。
可选地，所述多个凹槽和所述多条凸棱上涂覆有磁性介质层，所述磁性介质层的材料为钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料中的一种或多种，相邻的所述凹槽上涂覆的所述磁性介质层的磁性相反，所述凸棱和对应的所述凹槽上涂覆的所述磁性介质层的磁性相反。
本公开的发明人发现，在现有技术中，在对较为复杂的血管脉络使用导丝的过程中，在单根导丝疏通血管的过程中操作难度较大，这延长了治 疗时间，并容易导致错过治疗的最佳时间；且单根导丝在复杂的血管脉络中使用时，容易造成血管壁的破损而对病人造成二次损伤。因此，本公开所要实现的技术任务或者所要解决的技术问题是本领域技术人员从未想到的或者没有预期到的，故本公开是一种新的技术方案。
当在介入治疗时使用本公开汇总的对吻导丝时，第一连接部和第二连接部使第一导丝和第二导丝在血管中能够快速磁吸对接；同时，第一连接部和第二连接部的卡接结构加强了第一导丝和第二导丝之间的连接强度，并加快了治疗速度。
通过以下参照附图对本公开的示例性实施例的详细描述，本公开的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本公开的实施例，并且连同其说明一起用于解释本公开的原理。
图1是本公开实施例中对吻导丝的结构示意图之一；
图2是本公开实施例中对吻导丝的结构示意图之二；
图3是本公开实施例中对吻导丝在实际应用过程中的结构示意图。
附图标记
1、第一导丝；11、第一连接部；111、第一卡槽；112、第二卡槽；113、凹槽；12、第一转轴；2、第二导丝；21、第二连接部；211、卡勾；212、弯折部；213、凸棱；22、第二转轴。
具体实施方式
现在将参照附图来详细描述本公开的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本公开的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作 为对本公开及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
如图1至图3所示，本公开实施例提供了一种对吻导丝，包括第一导丝1和第二导丝2，所述第一导丝1的端部设置有第一连接部11，所述第二导丝2的端部设置有第二连接部21，所述第一连接部11和/或所述第二连接部21具有磁性且能够相互吸引，所述第一连接部11和所述第二连接部21处于吸引状态时，所述第一连接部11和所述第二连接部21卡接。在通过本实施例中的对吻导丝伸入较为复杂的血管脉络中进行治疗时，通常会遇到两根分支血管在某处汇聚形成一根主血管的情况，利用现有技术的导丝将两根分支血管疏通时，通常采用一根导丝在血管内弯折后疏通两根分支血管。若两根分支血管的夹角较小时，单根导丝需要在血管内弯折较大的角度才能够实现疏通的效果，这样不但耗费的时间较长，同时也容易造成血管的破裂。
如图3所示，在使用本实施例中的对吻导丝对两根分支血管进行疏通时，由于第一连接部11和第二连接部21具有磁性，第一连接部11和第二连接部21分别从两根分支血管进入病人体内。通过不断推进第一导丝1和第二导丝2，使第一连接部11和第二连接部21在两跟分支血管内移动，直至第一连接部11和第二连接部21相互靠近。第一连接部11和第二连接部21的磁性使第一连接部11和第二连接部21相互吸引连接。同时，第一连接部11和第二连接部21进行卡接，这加强了第一导丝1和第二导丝2之间的连接强度。在通过对吻导丝将血管疏通后，可以拉动第一导丝1或第二导丝2其中任意一个，以将对吻导丝拉出病人体内，这样操作十分简 便，同时缩短了治疗时间。
具体的，第一连接部11和第二连接部21上可以涂覆有磁性介质层，磁性介质层能够使第一连接部11和第二连接部21具有磁性。例如，第一连接部11上的磁性介质层为N极，第二连接部21上的磁性介质层为S极，当第一连接部11和第二连接部21移动至两根分支血管相交汇的主血管处时，第一连接部11和第二连接部21能够相互吸引固定。
其中，可以选择第一连接部11和第二连接部21其中任意一个为金属材质，另一个上涂覆有磁性介质层，如第一连接部11为金属材质，在第二连接部21上涂覆有磁性介质层，这样同样可以实现第一连接部11和第二连接部21的磁性连接。
可选地，如图1至图3所示，所述第一导丝1和所述第一连接部11通过第一转轴12连接，所述第二导丝2和所述第二连接部21通过第二转轴22连接。由于人体内血管的走向较为复杂，在针对如“人”字形血管进行疏通时，第一连接部11和第二连接部21通常在“人”字形血管的顶部交汇处连接。此时，为了保证第一连接部11和第二连接部21在血管内连接时的稳定性，第一转轴12使第一连接部11能够相对第一导丝1转动，第二转轴22使第二连接部21能够相对第二导丝2转动，在第一导丝1和第二导丝2在“人”字形血管的顶部交汇处连接时，第一转轴12和第二转轴22能够使第一连接部11和第二连接部21弯折并通过磁吸搭接，这样提高了第一连接部11和第二连接部21的连接面积，进一步提高了第一连接部11和第二连接部21的连接强度。
可选地，如图1至图3所示，所述第一转轴12垂直于所述第一导丝1设置，所述第二转轴22垂直于所述第二导丝2设置。为了避免第一导丝1和第二导丝2与第一连接部11和第二连接部21在弯折时导致血管壁的破损，使第一转轴12垂直第一导丝1，并且使第二转轴22垂直第二导丝2，在第一连接部11和第二连接部21在“人”字形血管的顶部交汇处连接时，通过第一转轴12和第二转轴22使第一连接部11和第二连接部21实现搭接磁吸固定的效果，并且配合第一连接部11和第二连接部21上的卡接结构，进一步加强第一导丝1和第二导丝2之间的连接强度，当需要将对吻 导丝从病人体内取出时，只需拉拽第一导丝1或第二导丝2其中任意一根即可，简化了操作。
可选地，如图1至图3所示，所述第一连接部11上开设有第一卡槽111，所述第二连接部21上设置有卡勾211，所述第一连接部11和所述第二连接部21处于吸引状态时，所述卡勾211嵌入所述第一卡槽111内。当第一连接部11和第二连接部21磁吸连接后，卡勾211嵌入第一卡槽111内，此时卡勾211和第一卡槽111的配合加强第一连接部11和第二连接部21之间的连接强度。
可选地，如图1至图3所示，所述第一卡槽111内开设有朝向所述第一导丝1延伸的第二卡槽112，所述卡勾211朝所述第二导丝2弯折而形成有弯折部212，所述第一连接部11和所述第二连接部21处于吸引状态时，所述弯折部212嵌入所述第二卡槽112内。第一连接部11和第二连接部21磁吸连接后，卡勾211嵌入第一卡槽111内，此时弯折部212嵌入第二卡槽112内。卡勾211和第一卡槽111的配合，以及弯折部212和第二卡槽112配合，能够对第一连接部11和第二连接部21之间的连接强度进行进一步的加强。对吻导丝在介入治疗的过程中，通过磁吸使第一连接部11和第二连接部21能够快速搭接，并形成预固定，同时通过卡勾211和第一卡槽111的配合，以及弯折部212和第二卡槽112的配合，加强对吻导丝的连接强度，避免在将对吻导丝拉出病人体内的过程中，第一连接部11和第二连接部21之间断开连接而导致第一导丝1或第二导丝2存留在病人体内并因此造成二次损伤。
可选地，如图1至图3所示，所述第一卡槽111开设于所述第一连接部11的顶面，所述第一连接部11的顶面还开设有多个凹槽113。所述卡勾211设置于所述第二连接部21的底面，所述第二连接部21的底面还设置有多条凸棱213。所述第一连接部11和所述第二连接部21处于吸引状态时，所述多条凸棱213依次嵌入所述多个凹槽113内。在第一连接部11和第二连接部21通过磁吸连接后，第一连接部11和第二连接部21搭接，卡勾211插入第一卡槽111内，此时弯折部212嵌入第二卡槽112内。此时，卡勾211和第一卡槽111对第一连接部11和第二连接部21在水平方 向上进行限位。由于第二卡槽112开设在第一卡槽111的内壁上，通过将弯折部212嵌入第二卡槽112内，可以实现对第一连接部11和第二连接部21在竖直方向上的限位。同时，为了进一步避免在抽拉第一导丝1或第二导丝2时，第一连接部11和第二连接部21之间断开连接而导致第一导丝1或第二导丝2残留在病人体内并因此造成二次伤害，在第一连接部11的顶面开设有多个凹槽113，并在第二连接部21的底面设置有多条凸棱213。在第一连接部11和第二连接部21通过磁吸连接后，凸棱213一一对应地嵌入凹槽113内，这样进一步对第一连接部11和第二连接部21在水平方向上进行限位。通过凸棱213与凹槽113的配合以及卡勾211和第一卡槽111的配合，能够保证在水平方向上不会出现脱落的情况，并且在拉拽第一导丝1或第二导丝2以将对吻导丝从病人体内取出时更加安全。
可选地，如图1至图3所示，所述多个凹槽113环绕所述卡槽的四周开设，所述多条凸棱213环绕所述卡勾211的四周设置。具体的，凹槽113可以开设为四个，凸棱213可以设置为四条，凹槽113呈矩形环绕开设在卡槽的四周，凸棱213也与凹槽113对应地呈矩形设置在卡勾211的四周。第一连接部11和第二连接部21通过磁吸连接后，凸棱213嵌入凹槽113内。由于凸棱213和凹槽113均呈矩形设置，能够在水平方向上对第一连接部11和第二连接部21起到更好的限位作用，避免第一连接部11和第二连接部21在病人体内断开连接，并增加了第一连接部11和第二连接部21的连接强度。
可选地，如图1至图3所示，所述第二卡槽112和所述弯折部212上涂覆有磁性介质层，所述磁性介质层的材料为钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料中的一种或多种，并且所述第二卡槽112和所述弯折部212上涂覆的所述磁性介质层的磁性相反。本实施例中，第二卡槽112和弯折部212上涂覆的磁性介质层并不局限于钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料这几种。第二卡槽112和弯折部212上能够涂覆有相反磁极，只要是实现第二卡槽112和弯折部212相吸的材料均可。
可选地，如图1至图3所示，所述第一连接部11和所述第二连接部 21的周侧均为圆滑弧面。通过将第一连接部11和第二连接部21的周侧设置为圆滑弧面，能够有效的避免在第一导丝1和第二导丝2伸入血管内时血管壁破裂，同时也能够避免在将第一导丝1和第二导丝2拉拽出病人体内时血管壁破裂。通过将第一连接部11和第二连接部21的周侧设置为圆滑弧面，可以有效地避免对血管壁造成的二次损伤。
可选地，如图1至图3所示，所述凹槽113和所述凸棱213上涂覆有磁性介质层，所述磁性介质层的材料为钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料中的一种或多种，相邻的所述凹槽113上涂覆的所述磁性介质层的磁性相反，所述凸棱213和对应的所述凹槽113上涂覆的所述磁性介质层的磁性相反。本实施例中，凸棱213上和凹槽113内涂覆的磁性介质层并不局限于钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料这几种，只要是能够为凸棱213上和凹槽113内涂覆有相反的磁极而实现凸棱213和凹槽113相吸的效果的材料均可。其中，通过在凸棱213和凹槽113上涂覆相反磁性的介质层，在第一连接部11和第二连接部21连接后，凸棱213和凹槽113相互吸引，这样进一步增强了第一连接部11和第二连接部21在竖直方向上的连接强度，从而保证在介入治疗的过程中第一导丝1和第二导丝2借助第一连接部11和第二连接部21的连接的稳定性。
虽然已经通过例子对本公开的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本公开的范围。本领域的技术人员应该理解，可在不脱离本公开的范围和精神的情况下，对以上实施例进行修改。本公开的范围由所附权利要求来限定。

Claims (10)

  1. 一种对吻导丝，其特征在于，包括第一导丝和第二导丝，所述第一导丝的端部设置有第一连接部，所述第二导丝的端部设置有第二连接部，所述第一连接部和/或所述第二连接部具有磁性且能够相互吸引，所述第一连接部和所述第二连接部处于吸引状态时，所述第一连接部和所述第二连接部卡接。
  2. 根据权利要求1所述的对吻导丝，其特征在于，所述第一导丝和所述第一连接部通过第一转轴连接，所述第二导丝和所述第二连接部通过第二转轴连接。
  3. 根据权利要求2所述的对吻导丝，其特征在于，所述第一转轴垂直于所述第一导丝设置，所述第二转轴垂直于所述第二导丝设置。
  4. 根据权利要求1至3中任一项所述的对吻导丝，其特征在于，所述第一连接部开设有第一卡槽，所述第二连接部设置有卡勾，所述第一连接部和所述第二连接部处于吸引状态时，所述卡勾嵌入所述第一卡槽内。
  5. 根据权利要求4所述的对吻导丝，其特征在于，所述第一卡槽内开设有向所述第一导丝延伸的第二卡槽，所述卡勾朝所述第二导丝方向弯折而形成有弯折部，所述第一连接部和所述第二连接部处于吸引状态时，所述弯折部嵌入所述第二卡槽内。
  6. 根据权利要求5所述的对吻导丝，其特征在于，所述第一卡槽开设于所述第一连接部的顶面，所述第一连接部的顶面还开设有多个凹槽；所述卡勾设置于所述第二连接部的底面，所述第二连接部的底面还设置有多条凸棱；所述第一连接部和所述第二连接部处于吸引状态时，所述多条凸棱依次嵌入所述多个凹槽内。
  7. 根据权利要求6所述的对吻导丝，其特征在于，所述多个凹槽环绕所述卡槽的四周开设，所述多条凸棱环绕所述卡勾的四周设置。
  8. 根据权利要求5所述的对吻导丝，其特征在于，所述第二卡槽和所述弯折部上涂覆有磁性介质层，所述磁性介质层的材料为钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料中的一种或多种，所述第二卡槽和 所述弯折部上涂覆的所述磁性介质层的磁性相反。
  9. 根据权利要求1至8中任一项所述的对吻导丝，其特征在于，所述第一连接部和所述第二连接部的周侧均为圆滑弧面。
  10. 根据权利要求7所述的对吻导丝，其特征在于，所述多个凹槽和所述多条凸棱上涂覆有磁性介质层，所述磁性介质层的材料为钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁或铁氧体永磁材料中的一种或多种，相邻的所述凹槽上涂覆的所述磁性介质层的磁性相反，所述凸棱和对应的所述凹槽上涂覆的所述磁性介质层的磁性相反。
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