WO2023169277A1 - 光纤集束固定装置及其激光导管及其光纤耦合系统 - Google Patents

光纤集束固定装置及其激光导管及其光纤耦合系统 Download PDF

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Publication number
WO2023169277A1
WO2023169277A1 PCT/CN2023/079011 CN2023079011W WO2023169277A1 WO 2023169277 A1 WO2023169277 A1 WO 2023169277A1 CN 2023079011 W CN2023079011 W CN 2023079011W WO 2023169277 A1 WO2023169277 A1 WO 2023169277A1
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WO
WIPO (PCT)
Prior art keywords
optical fiber
ferrule
fiber bundle
fixing device
laser
Prior art date
Application number
PCT/CN2023/079011
Other languages
English (en)
French (fr)
Inventor
金旻
刘强宪
余贤涛
卢慧洋
Original Assignee
微创投资控股有限公司
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
Priority claimed from CN202220534239.7U external-priority patent/CN217007750U/zh
Priority claimed from CN202210242269.5A external-priority patent/CN116774359A/zh
Application filed by 微创投资控股有限公司 filed Critical 微创投资控股有限公司
Publication of WO2023169277A1 publication Critical patent/WO2023169277A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means

Definitions

  • the present application relates to the technical field of medical devices, and in particular to an optical fiber bundle fixation device and its laser catheter and its optical fiber coupling system.
  • cardiovascular disease treatment technologies include drug therapy, surgery and interventional therapy. Interventional therapy is widely used in clinical practice due to its advantages of small trauma, high safety and good therapeutic effect.
  • this application discloses an optical fiber bundle fixing device, which includes a ferrule and an optical fiber fixing piece.
  • the ferrule is provided with a core channel that runs through its length direction for threading the optical fiber bundle, and the outer surface of the ferrule is An arc surface formed by rotating around the centerline of its length direction and having an opening communicating with the core channel;
  • the optical fiber fixing member includes a pressing component, the optical fiber fixing component is connected to the ferrule, and the pressing component is located in the opening and has a resisting portion for resisting the optical fiber bundle.
  • the outer surface of the ferrule is provided with a first connection structure extending along the circumferential direction of the ferrule
  • the optical fiber fixing member is provided with a second connection structure
  • the second connection structure is connected to the outer surface of the ferrule.
  • the first connection structure engages to fix the optical fiber fixing part and the ferrule.
  • the first connection structure includes an annular slot and/or a protrusion
  • the second connection structure is provided with an insertion structure matching the slot and/or with the protrusion. Matching groove construction.
  • the second connection structure is an annular elastic clamp with a notch, and the annular elastic clamp is clamped in the groove-shaped first connection structure.
  • the optical fiber fixing member includes an elongated arm that can be bent into a ring shape, and the optical fiber fixing member is fixedly connected to the ferrule through the elongated arm.
  • the optical fiber fixing member includes an annular body clamped in the circumferential direction of the ferrule, and two cantilevers extending axially outward from both sides of the annular body.
  • the cantilever arm constitutes the pressing assembly.
  • the cantilever arm is an inclined arm with an end inclined toward the axis of the annular body.
  • connection point between the optical fiber fixing member and the ferrule satisfies the requirement that the circumferential outer surface of the connection point is on the same cylindrical surface as the outer surface of the ferrule.
  • the optical fiber bundle fixing device of the present application further includes an outer protective sheath sleeved on the end of the ferrule.
  • the ferrule end has a platform stage, and the outer protective sleeve is set on the platform stage.
  • the resisting portion is in a concave arc shape.
  • the circumferential outer surface of the ferrule is also provided with a raised circumferential positioning piece, and the optical fiber fixing piece is fixed to the circumferential position of the ferrule through the circumferential positioning piece.
  • a second aspect of the present application discloses a laser catheter.
  • the connection end of the laser catheter is provided with any one of the aforementioned fiber bundle fixing devices.
  • the third aspect of this application discloses an optical fiber coupling system, which includes a laser device and the aforementioned laser catheter.
  • the laser device includes a laser and a coupling system.
  • the laser is connected to the coupling system.
  • the coupling system is connected to the laser.
  • the connecting ends of the conduits are connected.
  • Figure 1 is a schematic diagram of the use of the optical fiber bundle fixing device of the present application in some embodiments
  • Figure 2 is a schematic diagram of the positioning ferrule of the optical fiber bundle fixing device of the present application in some embodiments
  • Figure 3 is a schematic diagram of the optical fiber fixing part in some embodiments of the optical fiber bundling fixing device of the present application
  • Figure 4 is a schematic diagram of the extended arm of the optical fiber fixing part in some embodiments of the optical fiber bundling fixing device of the present application;
  • Figure 5 is a schematic diagram of the cooperation between the extension arm of the optical fiber fixing member and the ferrule in Figure 4;
  • Figure 6 is a schematic diagram of the circumferential limiting member of the optical fiber bundle fixing device of the present application in some embodiments.
  • Figure 7 is a schematic diagram of the laser catheter of the present application in some embodiments.
  • Figure 8 is a schematic diagram of the optical fiber coupling system in some embodiments of the present application.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • the commonly used laser thrombolysis technology today usually includes a laser and a laser catheter.
  • the end of the laser catheter has a connector.
  • the connector is used to connect to the coupling system.
  • the pulsed laser generated by the laser is concentrated through the coupling system and enters the optical fiber of the laser catheter through the connector.
  • the laser energy of the pulsed laser is conducted to the embolization site through the laser catheter, and the laser energy emulsifies or directly ablates the thrombus at the embolization site to achieve the purpose of treatment.
  • Connectors in the prior art usually contain rectangular, square or circular channels for fixing optical fibers in laser catheters.
  • existing connectors usually use adhesives such as epoxy resin to bond and fix the multiple optical fibers.
  • the adhesive will absorb the laser radiation energy and generate local hot spots, causing damage to the optical fiber. After being vaporized by heat, it will be mixed with other incompletely vaporized adhesive residues, covering the end face of the optical fiber, causing Coupling efficiency is reduced. Not only that, for optical fiber bundles fixed by adhesive, it is difficult to remove them without damaging the optical fiber, causing rework difficulties. Moreover, the curing of the adhesive also takes a certain amount of time, which will increase production costs.
  • Figure 1 shows a schematic diagram of the use of an optical fiber bundling and fixing device in an embodiment of the present application.
  • the optical fiber bundling and fixing device includes a ferrule 1 and an optical fiber fixing piece 2.
  • the optical fiber fixing piece 2 and the ferrule 1 connected.
  • Figure 2 is a schematic diagram of the ferrule 1 in some embodiments.
  • the ferrule 1 is provided with a core channel 11 running through its length direction.
  • Several optical fibers can form a bare optical fiber bundle 4 and pass through the core channel 11.
  • the outer surface of the ferrule 1 is an arc surface formed by rotating around the center line in the length direction, and an opening 111 communicating with the core channel 11 is provided on the outer surface.
  • Figure 3 is a schematic diagram of the optical fiber fixing part 2 in some embodiments.
  • the optical fiber fixing part 2 includes a pressing component 21, and the pressing component 21 is provided with a resisting portion. 211.
  • the pressing component 21 is located at the opening 111 , and the resisting portion 211 can block the bare optical fiber bundle 4 from coming out of the opening 111 .
  • the optical fiber bundle fixing device of the present application sets the outer surface of the ferrule 1 into an arc shape, so that when used as the connection end of a laser catheter, since the ferrule 1 matches the contour of the laser catheter, it can be used without In the case of other auxiliary fixing mechanisms, quick insertion with the laser is achieved, which greatly improves assembly efficiency.
  • the resisting portion 211 on the pressing assembly 21 can prevent the bare optical fiber bundle 4 from passing through the core channel 11 through the opening 111 come out to achieve reliable fixing of the bare optical fiber bundle 4.
  • the optical fiber bundle fixing device of the present application avoids the use of adhesives and fixes the bare optical fiber bundle in a purely mechanical manner, thus solving a series of problems caused by the use of adhesives in the prior art. question.
  • the steps are clear and the operation is simple, which reduces the risk of optical fiber breakage during assembly and effectively improves the yield rate.
  • the outer peripheral surface of the ferrule 1 is provided with a first connection structure 12, and the optical The fiber fixing part 2 is provided with a second connection structure 22, and the second connection structure 22 can engage with the first connection structure 12 to achieve a fixed connection between the fiber fixing part 2 and the ferrule 1.
  • the optical fiber bundle fixing device of the present application does not require the use of additional tools during assembly, simplifying
  • the assembly process after placing the bare optical fiber bundle 4 into the core channel 11 of the ferrule 1, the optical fiber fixing part 2 is connected to the ferrule 1.
  • there is no step that requires verifying whether the bare optical fiber bundle 4 is fixed which improves the production efficiency, further reduces the risk of optical fiber breakage during assembly, and improves the yield rate.
  • the first connection structure 12 is an annular slot provided around the outer surface of the ferrule 1.
  • the second connection structure 12 is an annular slot.
  • the structure 22 is provided with an insert structure corresponding to the annular slot. By inserting the insertion structure into the aforementioned annular slot, the first connection structure 12 and the second connection structure 22 can be connected and fixed by snapping.
  • the first connection structure 12 may be an annular protrusion arranged around the outer surface of the ferrule 1.
  • the second connection structure 22 may be provided with an annular protrusion similar to the aforementioned one. Matching groove construction. When the annular protrusion is engaged in the groove structure, the first connection structure 12 and the second connection structure 22 can be connected and fixed by engagement. Compared with other forms of first connection structures 12 and second connection structures 22 , the two aforementioned first connection structures 12 and second connection structures 22 are the easiest to assemble, and the assembly work is very straightforward. What you see is what you get, ensuring that While ensuring the stability of the connection between the ferrule 1 and the optical fiber fixing part 2, the assembly efficiency is greatly improved.
  • the second connection structure 22 is an annular elastic clamp with a notch.
  • the ferrule 1 can pass through the gap, so that the annular elastic clip can be engaged in the groove-shaped first connection structure 12 on the ferrule 1 .
  • the second connection structure 22 may be made of elastic material, such as plastic or elastic stainless steel, nickel-titanium alloy, etc.
  • the optical fiber bundling and fixing device of the present application does not have to be connected with the first connection structure 12 and the second connection structure 22 .
  • the optical fiber fixing member 2 includes an elongated arm 23, which can be processed and bent into a ring shape. As shown in Figure 5, the fiber holder 2 is pre-assembled with the ferrule 1, and then the elongated arm 23 is bent along the outer surface of the ferrule 1 to form the elongated arm 23 surrounding the outer surface of the ferrule 1. In this way, the optical fiber fixing part 2 and the ferrule 1 are fixedly connected.
  • This form of optical fiber fixing member 2 has a wider scope of application and can be easily installed on ferrules 1 with different outer surfaces, thereby enabling simultaneous assembly of multiple different types of optical fiber bundle fixing devices of the present application.
  • the circumferential outer surface of the ferrule 1 can also be provided with a protruding circumferential positioning member 13, and the optical fiber fixing member 2 is connected to the ferrule through the circumferential positioning member 13.
  • the circumferential position of core 1 remains fixed.
  • the positioning member 13 is a protrusion provided on the circumferential outer surface of the ferrule 1 and extending along its length direction. The two elongated arms 23 are bent around the outer surface of the ferrule 1 in counterclockwise and clockwise directions respectively.
  • the circumferential positioning member 13 can also be provided. The principle is similar to the previous embodiment and will not be described again here.
  • the circumferential outer surface of the connection point when the optical fiber fixing member 2 is connected to the ferrule 1, the circumferential outer surface of the connection point does not protrude from the outer surface of the ferrule 1. Further, the circumferential outer surface of the connection point between the optical fiber fixing member 2 and the ferrule 1 is on the same cylindrical surface as the outer surface of the ferrule 1 .
  • the outer diameter size of the entire fixing device in the length direction is consistent. In other words, the outer surface of the entire fixing device has a smooth transition, which allows the optical fiber bundle fixing device to be Direct insertion into the laser without any interference with the laser increases its convenience and reliability when assembling fiber coupling systems.
  • the optical fiber fixing member 2 includes an annular body for clamping in the circumferential direction of the ferrule 1 . Two sides of the annular body extend outward in the axial direction.
  • a cantilever which constitutes the pressing assembly 21. Further, the cantilever is an inclined straight arm with an end inclined toward the axis of the annular body, and the end of the cantilever is the resisting portion.
  • the cantilever naturally extends to the core channel 11 of the ferrule 1, and the end of the cantilever is located at the opening 111 of the core channel 11 to prevent the bare fiber bundle from being
  • the optical fiber in 4 comes out of the core channel 11 through the opening 111.
  • the resisting portion may be in a concave arc shape.
  • the concave arc-shaped resisting portion can better fit the bare optical fiber bundle 4 and will not exert excessive pressure on the bare optical fiber bundle 4 .
  • the optical fiber bundle fixing device of the present application also includes an outer protective sheath 3 connected to one end of the ferrule 1 in the length direction, and the bare optical fiber bundle 4 can be removed from the outer protective sheath. 3 out.
  • the function of the outer protective sheath 3 is to protect the bare optical fiber bundle 4 when the optical fiber bundle fixing device of the present application is used to connect the bare optical fiber bundle 4 to the laser device.
  • the outer protective sheath 3 can be press-fitted with the end of the ferrule 1 , or can be provided with matching threads on the outside of the end of the ferrule 1 and the inside of the outer protective sheath 3 , thereby forming a threaded connection between the outer protective sleeve 3 and the ferrule 1.
  • the outer protective cover 3 is usually made of materials such as stainless steel, aluminum alloy or titanium alloy.
  • the end of the ferrule 1 has a stage 14 , and the outer protective sheath 3 is set on the stage 14 .
  • the stage 14 provides an axial limit.
  • the operator sets the outer protective sleeve 3 on the ferrule 1, he can clearly know whether the outer protective sleeve 3 has been installed in place; on the other hand, the operator set in this way fiber optic bundle
  • the fixing device is connected to the coupling system, it can reliably prevent the outer protective sleeve 3 from sliding in the axial direction of the ferrule 1.
  • the outer diameter of the outer protective sheath 3 is equal to the outer diameter of the ferrule 1 at the unset stage 14. In this way, the axial surface of the outer protective sheath 3 and the outer surface of the ferrule 1 will be smoothly connected. It is advantageous to connect the optical fiber bundle fixing device and the coupling system of the present application.
  • FIG. 7 another aspect of the present application discloses a laser catheter 6.
  • the connection end of the laser catheter 6 is provided with any one of the aforementioned fiber bundle fixing devices 7.
  • the laser catheter of the present application uses an optical fiber bundle fixing device as a connector, which can be easily connected to a laser device, and because the optical fibers in the laser catheter are not bundled and fixed with adhesive, the laser catheter can transmit peak power.
  • Higher pulse lasers with shorter pulse widths are used to ablate and cut tissues with higher hardness. They have lower thermal impact on human tissues around the treatment site and cause less damage.
  • an optical fiber coupling system including a laser device and the aforementioned laser catheter 6.
  • the laser device includes a laser 8 and a coupling system 9.
  • the laser 8 and the coupling system 9 is connected, and the coupling system 9 is connected to the optical fiber bundle fixing device 7 of the laser catheter.
  • This optical fiber coupling system is more effective than the existing technology, and is more convenient to process and assemble.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

一种光纤集束固定装置及其激光导管及其光纤耦合系统，光纤集束固定装置（7）包括插芯（1）以及光纤固定件（2）,插芯（1）设置有贯通其长度方向用于穿设光纤束的芯道（11）,且插芯（1）的外表面为绕其长度方向的中心线旋转形成的弧面且具有与芯道（11）相通的开口（111）;光纤固定件（2）包括压紧组件（21）,光纤固定件（2）与插芯（1）相连，压紧组件（21）位于开口（111）处且具有用于抵紧光纤束的抵挡部（211）。激光导管（6）连接端设置有该光纤集束固定装置（7）,用于与激光装置连接。光纤耦合系统包括激光装置和该激光导管（6）。

Description

光纤集束固定装置及其激光导管及其光纤耦合系统
相关申请
本申请要求于2022年3月11日提交中国专利局的申请号为2022205342397、名称为“光纤集束固定装置及其激光导管及其光纤耦合系统”的中国专利申请，以及于2022年3月11日提交中国专利局的申请号为2022102422695、名称为“光纤集束固定装置及其激光导管及其光纤耦合系统”的中国专利申请的优先权，前述两件专利的全部内容通过引用结合在本申请中。
技术领域
本申请涉及医疗器械技术领域，特别是涉及一种光纤集束固定装置及其激光导管及其光纤耦合系统。
背景技术
经济快速增长所带来的生活方式的变化，导致高血压、肥胖等疾病在中国日益普遍，从而增加了心血管疾病的发病风险。目前，心血管疾病治疗技术包括药物治疗、外科手术及介入治疗，其中介入治疗凭借其创伤小、安全性高及治疗效果佳等优势，被广泛应用于临床。
发明内容
本申请一方面公开了一种光纤集束固定装置，包括插芯以及光纤固定件，所述插芯设置有贯通其长度方向用于穿设光纤束的芯道，且所述插芯的外表面为绕其长度方向的中心线旋转形成的弧面且具有与芯道相通的开口；所述光纤固定件包括压紧组件，所述光纤固定件与所述插芯相连，所述压紧组件位于开口处且具有用于抵紧所述光纤束的抵挡部。
在其中一个实施例中，所述插芯的外表面上设置有沿所述插芯周向延伸的第一连接结构，所述光纤固定件设有第二连接结构，所述第二连接结构与所述第一连接结构卡合实现所述光纤固定件和所述插芯的固定。
在其中一个实施例中，所述第一连接结构包括环状的开槽和/或凸起，所述第二连接结构设有与所述开槽匹配的插入结构和/或与所述凸起匹配的凹槽结构。
在其中一个实施例中，所述第二连接结构为具有缺口的环状弹性卡件，所述环状弹性卡件卡设在槽状的所述第一连接结构中。
在其中一个实施例中，所述光纤固定件包括可被弯曲为环状的伸长臂，所述光纤固定件通过所述伸长臂与所述插芯固定相连。
在其中一个实施例中，所述光纤固定件包括卡设在所述插芯周向上的环状本体，以及由环状本体的两侧沿轴向向外延伸的两个悬臂，两个所述悬臂组成所述压紧组件。
在其中一个实施例中，所述悬臂为端部向环状本体的轴线处倾斜的倾斜臂。
在其中一个实施例中，所述光纤固定件与所述插芯的相连处满足：相连处的周向外表面其与所述插芯的外表面处于同一柱面上。
在其中一个实施例中，本申请的光纤集束固定装置还包括套接在所述插芯端部的外保护套。
在其中一个实施例中，所述插芯端部具有台阶段，所述外保护套套设在所述台阶段上。
在其中一个实施例中，所述抵挡部为凹弧形。
在其中一个实施例中，所述插芯的周向外表面还设置有凸起的周向定位件，所述光纤固定件通过所述周向定位件与所述插芯的周向位置保持固定。
本申请第二方面公开了一种激光导管，激光导管的连接端设置有前述任一所述的光纤集束固定装置。
本申请第三方面公开了一种光纤耦合系统，包括激光装置以及前述的激光导管，所述激光装置包括激光器和耦合系统，所述激光器与所述耦合系统相连，所述耦合系统与所述激光导管的连接端相连。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据公开的附图获得其他的附图。
图1为本申请的所述光纤集束固定装置在部分实施例中的使用示意图；
图2为本申请的所述光纤集束固定装置在部分实施例中的定位插芯的示意图；
图3为本申请的所述光纤集束固定装置在部分实施例中的光纤固定件的示意图；
图4为本申请的所述光纤集束固定装置在部分实施例中的光纤固定件的伸长臂的示意图；
图5为图4中所述光纤固定件的伸长臂与插芯的配合示意图；
图6为本申请的所述光纤集束固定装置在部分实施例中的周向限位件的示意图；
图7为本申请的所述激光导管在部分实施例中的示意图；
图8为本申请的所述光纤耦合系统在部分实施例中的示意图。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可 以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
日前常用的激光溶栓技术通常包括激光器和激光导管，激光导管的末端具有连接器，连接器用于与耦合系统连接，激光器产生的脉冲激光通过耦合系统汇聚，经过连接器进入激光导管的光纤中，通过激光导管将脉冲激光的激光能量传导至栓塞部位，激光能量将栓塞部位的血栓乳化或是直接消融进而达到治疗目的。现有技术中的连接器内通常含有长方形、正方形或圆形的通道，用以固定激光导管中的光纤。而对于由多根光纤组成的光纤束的情形，现有连接器通常会使用环氧树脂等粘合剂将多根光纤粘合固定。然而这种激光导管在投入使用后，粘合剂会吸收激光辐射能量而产生局部热点对光纤造成损伤，并且其在受热汽化后会混杂其他未完全汽化的粘合剂残渣，覆盖在光纤端面导致耦合效率降低。不仅如此，对于通过粘合剂胶合固定的光纤束，很难在不损伤光纤的情况下将其去除，造成返工上的困难。而且粘合剂的固化也需要一定的时间，这些都会增加生产上的成本。
参阅图1、图2，图1示出了本申请一实施例中的光纤集束固定装置的使用示意图，所述光纤集束固定装置包括插芯1以及光纤固定件2，光纤固定件2与插芯1相连。如图2所示为部分实施例中的插芯1的示意图，所述插芯1内部设有贯通其长度方向的芯道11，若干根光纤可以形成裸光纤束4穿设于芯道11中。插芯1的外表面为绕其长度方向的中心线旋转形成的弧面，并且该外表面上设有与芯道11相通的开口111。参阅图2、图3，图3为光纤固定件2在部分实施例中的示意图，在该部分实施例中，光纤固定件2包括压紧组件21，所述压紧组件21上设置有抵挡部211。当光纤固定件2与插芯1连接时，压紧组件21位于开口111处，并且抵挡部211能够阻挡裸光纤束4从开口111脱出。
本申请的所述光纤集束固定装置，通过把插芯1的外表面设置为弧形，使其在用作激光导管的连接端时，由于插芯1与激光导管的轮廓相匹配，可以在没有其他辅助固定机构的情况下，实现与激光器的快速插接，大大提高了装配效率。通过在插芯1内设置芯道11，并且在其外表面上设置与芯道11相通的开口111，压紧组件21上的抵挡部211可以防止裸光纤束4通过开口111从芯道11中脱出，实现对裸光纤束4的可靠固定。相比现有技术，本申请的所述光纤集束固定装置避免使用粘合剂，通过纯机械的方式对裸光纤束进行固定，解决了现有技术中由于使用粘合剂而带来的一系列问题。本申请的所述光纤集束固定装置在组装时，步骤清楚明晰而且操作简单，降低了组装中光纤折断的风险，有效提高了良品率。
如图2、图3所示，在部分实施例中，插芯1的外周面设置有第一连接结构12，而光 纤固定件2设有第二连接结构22，第二连接结构22能够与第一连接结构12卡合，实现光纤固定件2与插芯1的固定连接。通过将插芯1与光纤固定件2设置为通过第一连接结构12和第二连接结构22卡合连接，本申请的所述光纤集束固定装置在组装时不需要使用到额外的工具，简化了组装工艺，将裸光纤束4放入插芯1的芯道11后，把光纤固定件2连接在插芯1上即可。在该组装工艺中，不存在需要验证裸光纤束4是否被固定的步骤，提高了制作效率，并且进一步降低了组装中光纤折断的风险，提升了良品率。
可以理解的，本申请对于第一连接结构12以及第二连接结构22的具体形式并不加以严格限制，其具有多种实现可能性。举例来说，在如图2所示的部分实施例中，第一连接结构12为环绕插芯1外表面设置的环状的开槽，与之对应的，如图3所示，第二连接结构22设置有与环状开槽对应的插入结构。通过将所述插入结构插入前述的环状开槽中，便可以形成第一连接结构12与第二连接结构22的卡合连接固定。类似地，在另一些实施例中，第一连接结构12可以为环绕插芯1外表面设置的环状的凸起，与之对应的，第二连接结构22设置有与前述的环状凸起匹配的凹槽结构。当环状的凸起卡合在所述凹槽结构中时，便可以形成第一连接结构12与第二连接结构22的卡合连接固定。相比其他形式的第一连接结构12以及第二连接结构22，前述的两种第一连接结构12以及第二连接结构22在组装时最为容易，而且装配工作十分直接，所见即所得，保证了插芯1与光纤固定件2连接稳定性的同时，大大提高了装配效率。
进一步具体地，如图3所示，在部分实施例中，所述第二连接结构22为环状的、具有缺口的弹性卡件。插芯1可以穿过所述缺口，使得环状弹性卡件能够卡合于插芯1上槽状的第一连接结构12中。在该实施例中，所述第二连接结构22可以由具有弹性的材料制得，例如塑料或者具有弹性的不锈钢、镍钛合金等。
而在另一些实施例中，如图4所示，本申请的所述光纤集束固定装置，也并非必须设置第一连接结构12和第二连接结构22才能连接。在该部分实施例中，所述光纤固定件2包括伸长臂23，该伸长臂23可被加工而弯曲为环状。如图5所示，将光纤固定件2与插芯1预装配，然后将该伸长臂23沿着插芯1的外表面进行弯曲，形成将伸长臂23围绕在插芯1外表面上的形式，以此实现光纤固定件2与插芯1的固定相连。这种形式的光纤固定件2具有更广的适用范围，可以轻松地安装在具有不同外表面的插芯1上，从而能够同时进行多种不同型号的本申请的光纤集束固定装置的装配。
如图6所示，在图示的部分实施例中，所述插芯1的周向外表面还可以设置有凸起的周向定位件13，光纤固定件2通过周向定位件13与插芯1的周向位置保持固定。以光纤固定件2上设置有前述的可弯曲的伸长臂23为例，该实施例中，伸长臂23为两个，周向 定位件13为设置在插芯1周向外表面上沿其长度方向延伸的凸起，两个伸长臂23分别从逆时针和顺时针两个方向围绕插芯1的外表面进行弯曲，两个伸长臂23抵接周向定位件13的两侧。如此，光纤固定件2与插芯1的周向位置固定，从而确保光纤固定件2可以起到将裸光纤束4固定在插芯1内的效果。显而易见的，对于光纤固定件2上设置具有缺口的环状弹性卡件的方案，或者其他的方案，也是可以设置周向定位件13的，其原理与前述实施例类似，在此不再赘述。
在部分实施例中，当光纤固定件2与插芯1连接时，相连处的周向外表面不突出于插芯1的外表面。进一步的，光纤固定件2与插芯1相连处的周向外表面与插芯1的外表面处于同一柱面上。通过控制光纤固定件2与插芯1的相连时，整个固定装置在长度方向上的外径尺寸一致，换句话说，整个固定装置的外表面为平滑过渡的，这就使光纤集束固定装置可以直接插入激光器而不会与激光器发生任何干涉，提高了其在组装光纤耦合系统时的便利性和可靠性。
可以理解的，本申请的光纤集束固定装置对于压紧组件21的具体形式并不加以限制。在部分实施例中，如图3所示，所述光纤固定件2包括用于卡设在插芯1周向上的环状本体，该环状本体的两侧沿轴向向外延伸设置了两个悬臂，该悬臂即构成所述压紧组件21。进一步地，所述悬臂为其端部向环状本体的轴线处倾斜的倾斜直臂，所述悬臂的末端即为所述抵挡部。如此，当光纤固定件2的环状本体卡设在插芯1上时，悬臂就自然地伸向插芯1的芯道11，悬臂的末端位于芯道11的开口111处，防止裸光纤束4中的光纤通过开口111从芯道11中脱出。
在部分实施例中，所述抵挡部可以为凹弧形。凹弧形的抵挡部可以与裸光纤束4更好地贴合，并且不会对裸光纤束4产生过大的压强。
如图1所示，在部分实施例中，本申请的所述光纤集束固定装置还包括连接在所述插芯1长度方向一端的外保护套3，裸光纤束4能够从所述外保护套3中穿出。外保护套3的作用在于使用本申请的光纤集束固定装置将裸光纤束4与激光装置连接时，可以对裸光纤束4进行保护。
具体来说，在部分实施例中，所述外保护套3可以与插芯1的端部压配，也可以通过在插芯1的端部的外侧和外保护套3的内侧设置匹配的螺纹，从而将外保护套3与插芯1形成螺纹连接。外保护套3通常采用不锈钢、铝合金或钛合金等材料制作。
如图2所示，在部分实施例中，插芯1的端部具有台阶段14，外保护套3套设在台阶段14上。如此，台阶段14一方面提供了轴向限位，操作人员在向插芯1上套设外保护套3时，可以清楚地知道外保护套3是否已经安装到位；另一方面，如此设置的光纤集束固 定装置在与耦合系统连接时，可以确实避免外保护套3在插芯1的轴向上发生滑动。在所述部分实施例中，外保护套3的外径等于插芯1未设置台阶段14处的外径，如此，外保护套3的轴向表面与插芯1的外表面将平滑衔接，有利于本申请的光纤集束固定装置与耦合系统的连接。
如图7所示，本申请另一方面公开了一种激光导管6，所述激光导管6的连接端设置有前述任一所述的光纤集束固定装置7。本申请的所述激光导管将光纤集束固定装置用作连接器，可以方便地与激光装置连接，并且由于激光导管内的光纤没有采用粘结剂进行集束固定，使得所述激光导管能够传输峰值功率更高，脉宽更短的脉冲激光，用于消融、切割更高硬度的组织，对治疗部位周围的人体组织的热影响更低，损伤更小。
如图8所示，本申请又一方面公开了一种光纤耦合系统，包括激光装置以及前述的激光导管6，所述激光装置包括激光器8和耦合系统9，所述激光器8与所述耦合系统9相连，所述耦合系统9与所述激光导管的所述光纤集束固定装置7相连。这种光纤耦合系统相比现有技术效果更好，并且加工、组装均更加方便。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (14)

  1. 一种光纤集束固定装置，包括插芯以及光纤固定件，所述插芯设置有贯通其长度方向用于穿设光纤束的芯道，且所述插芯的外表面为绕其长度方向的中心线旋转形成的弧面且具有与芯道相通的开口；所述光纤固定件包括压紧组件，所述光纤固定件与所述插芯相连，所述压紧组件位于所述开口处且具有用于抵紧所述光纤束的抵挡部。
  2. 根据权利要求1所述的光纤集束固定装置，其中，所述插芯的外表面上设置有沿所述插芯周向延伸的第一连接结构，所述光纤固定件设有第二连接结构，所述第二连接结构与所述第一连接结构卡合实现所述光纤固定件和所述插芯的固定。
  3. 根据权利要求2所述的光纤集束固定装置，其中，所述第一连接结构包括环状的开槽和/或凸起，所述第二连接结构设有与所述开槽匹配的插入结构和/或与所述凸起匹配的凹槽结构。
  4. 根据权利要求2所述的光纤集束固定装置，其中，所述第二连接结构为具有缺口的环状弹性卡件，所述环状弹性卡件卡设在槽状的所述第一连接结构中。
  5. 根据权利要求1所述的光纤集束固定装置，其中，所述光纤固定件包括可被弯曲为环状的伸长臂，所述光纤固定件通过所述伸长臂与所述插芯固定相连。
  6. 根据权利要求1所述的光纤集束固定装置，其中，所述光纤固定件包括卡设在所述插芯周向上的环状本体，以及由环状本体的两侧沿轴向向外延伸的两个悬臂，两个所述悬臂组成所述压紧组件。
  7. 根据权利要求6所述的光纤集束固定装置，其中，所述悬臂为端部向环状本体的轴线处倾斜的倾斜臂。
  8. 根据权利要求1所述的光纤集束固定装置，其中，所述光纤固定件与所述插芯的相连处满足：相连处的周向外表面其与所述插芯的外表面处于同一柱面上。
  9. 根据权利要求1所述的光纤集束固定装置，其中，还包括套接在所述插芯端部的外保护套。
  10. 根据权利要求9所述的光纤集束固定装置，其中，所述插芯端部具有台阶段，所述外保护套套设在所述台阶段上。
  11. 根据权利要求1所述的光纤集束固定装置，其中，所述抵挡部为凹弧形。
  12. 根据权利要求2、5或6任一项所述的光纤集束固定装置，其中，所述插芯的周向外表面还设置有凸起的周向定位件，所述光纤固定件通过所述周向定位件与所述插芯的周向位置保持固定。
  13. 一种激光导管，所述激光导管的连接端设置有权利要求1-12任一所述的光纤集束固定装置。
  14. 一种光纤耦合系统，包括激光装置以及权利要求13所述的激光导管，所述激光装置包括激光器和耦合系统，所述激光器与所述耦合系统相连，所述耦合系统与所述激光导管的连接端相连。
PCT/CN2023/079011 2022-03-11 2023-03-01 光纤集束固定装置及其激光导管及其光纤耦合系统 WO2023169277A1 (zh)

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CN202210242269.5A CN116774359A (zh) 2022-03-11 2022-03-11 光纤集束固定装置及其激光导管及其光纤耦合系统
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JPS6042719A (ja) * 1983-08-18 1985-03-07 Nec Corp 光ファイバコネクタ
JPH07209526A (ja) * 1994-01-14 1995-08-11 Mitsubishi Rayon Co Ltd 光ファイバ集束体
JPH08271740A (ja) * 1995-04-03 1996-10-18 Mitsubishi Rayon Co Ltd 口金部品
JP2001305387A (ja) * 2000-04-18 2001-10-31 Mitsubishi Rayon Co Ltd 光ファイバ集束具及び集束具付き光ファイバ束
US20050196104A1 (en) * 2004-03-02 2005-09-08 Liu Chin J. Connector having arrangement of fixing optical fibers without using adhesive
CN110618495A (zh) * 2018-06-30 2019-12-27 中航光电科技股份有限公司 一种光纤连接器及其插芯部件
CN113900190A (zh) * 2021-09-24 2022-01-07 上海微创投资控股有限公司 光纤集束固定装置及其激光导管及其光纤耦合系统
CN217007750U (zh) * 2022-03-11 2022-07-19 微创投资控股有限公司 光纤集束固定装置及其激光导管及其光纤耦合系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042719A (ja) * 1983-08-18 1985-03-07 Nec Corp 光ファイバコネクタ
JPH07209526A (ja) * 1994-01-14 1995-08-11 Mitsubishi Rayon Co Ltd 光ファイバ集束体
JPH08271740A (ja) * 1995-04-03 1996-10-18 Mitsubishi Rayon Co Ltd 口金部品
JP2001305387A (ja) * 2000-04-18 2001-10-31 Mitsubishi Rayon Co Ltd 光ファイバ集束具及び集束具付き光ファイバ束
US20050196104A1 (en) * 2004-03-02 2005-09-08 Liu Chin J. Connector having arrangement of fixing optical fibers without using adhesive
CN110618495A (zh) * 2018-06-30 2019-12-27 中航光电科技股份有限公司 一种光纤连接器及其插芯部件
CN113900190A (zh) * 2021-09-24 2022-01-07 上海微创投资控股有限公司 光纤集束固定装置及其激光导管及其光纤耦合系统
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