CN110811736A - A coil delivery system - Google Patents

Abstract

Translated fromChinese

一种弹簧圈输送系统，包括外管、芯轴、互锁机构和弹簧圈，所述互锁机构包括可以卡合和分离的前半部和后半部，互锁机构前后分别与外管和弹簧圈固定，所述芯轴穿设于外管互锁机构和弹簧圈内并能沿外管、互锁机构和弹簧圈轴线移动，所述弹簧圈远离互锁机构一端设置有挡盖，本发明能有效解决弹簧圈输送过程的变形问题，同时能在输送系统固定的情况下实现弹簧圈输送过程中的回撤。

A coil conveying system includes an outer tube, a mandrel, an interlocking mechanism and a spring coil, the interlocking mechanism includes a front half and a rear half that can be engaged and separated, and the interlocking mechanism is respectively connected with the outer tube and the spring in front and back. The ring is fixed, the mandrel passes through the outer tube interlocking mechanism and the spring coil and can move along the axis of the outer tube, the interlocking mechanism and the spring coil, and the end of the spring coil far from the interlocking mechanism is provided with a blocking cover, the present invention It can effectively solve the deformation problem during the conveying process of the spring coil, and at the same time, it can realize the retraction during the conveying process of the coil when the conveying system is fixed.

Description

Translated fromChinese

一种弹簧圈输送系统A coil delivery system

技术领域technical field

本发明属于医疗器械技术领域，具体涉及一种弹簧圈输送系统。The invention belongs to the technical field of medical devices, in particular to a coil delivery system.

背景技术Background technique

弹簧圈是治疗各种动脉瘤的有效栓塞器械，是目前成熟且运用最为广泛的介入手段治疗动脉瘤的治疗方法，目前市面上的弹簧圈输送系统均为与弹簧圈近端连接，然后推送弹簧圈在微导管中前进，当弹簧圈到达病变位置后撤回，但在弹簧圈推送的过程中极易产生“蛇形效应”（即呈波浪型结构），增大了弹簧圈与微导管的摩擦面积，特别是弹簧圈长度较长时，摩擦阻力增大更为显著，同时提高了弹簧圈的折裂风险，此外市面上的弹簧圈输送系统不具备输送系统固定的情况下撤回弹簧圈实现对弹簧圈的调整的功能。Coil is an effective embolization device for the treatment of various aneurysms. It is currently the most mature and widely used interventional method for the treatment of aneurysms. Currently, coil delivery systems on the market are all connected to the proximal end of the coil, and then push the spring The coil advances in the microcatheter, and when the coil reaches the lesion position, it withdraws, but it is easy to produce a "snake effect" (ie, a wavy structure) during the pushing process of the coil, which increases the friction between the coil and the microcatheter. Area, especially when the length of the coil is long, the frictional resistance increases more significantly, and at the same time increases the risk of fracture of the coil. The adjustment function of the spring coil.

发明内容SUMMARY OF THE INVENTION

本发明的目的是克服现有技术的不足而提供一种弹簧圈输送系统，本发明能有效解决弹簧圈输送过程的变形问题，同时能在输送系统固定的情况下实现弹簧圈输送过程中的回撤。The purpose of the present invention is to overcome the deficiencies of the prior art and provide a spring coil conveying system. The present invention can effectively solve the deformation problem during the conveying process of the spring coil, and at the same time, it can realize the return of the coil during the conveying process when the conveying system is fixed. withdraw.

本发明的技术方案如下：一种弹簧圈输送系统，包括外管、芯轴、互锁机构和弹簧圈，所述互锁机构包括可以卡合和分离的前半部和后半部，互锁机构前后分别与外管和弹簧圈固定，所述芯轴穿设于外管互锁机构和弹簧圈内并能沿外管、互锁机构和弹簧圈轴线移动，所述弹簧圈远离互锁机构一端设置有挡盖。The technical solution of the present invention is as follows: a coil conveying system, comprising an outer tube, a mandrel, an interlocking mechanism and a spring coil, the interlocking mechanism includes a front half and a rear half that can be engaged and separated, and the interlocking mechanism The front and rear are respectively fixed with the outer tube and the spring coil. The mandrel is passed through the interlocking mechanism of the outer tube and the spring coil and can move along the axis of the outer tube, the interlocking mechanism and the spring coil. The end of the spring coil is far away from the interlocking mechanism. A cover is provided.

优选地，所述互锁机构的前半部和后半部上均设置有卡槽和容纳芯轴的柱形孔。Preferably, both the front half and the rear half of the interlocking mechanism are provided with a clamping slot and a cylindrical hole for accommodating the mandrel.

优选地，所述芯轴与外管内壁相贴合。Preferably, the mandrel is in contact with the inner wall of the outer tube.

优选地，所述外管和芯轴材料为不锈钢或镍铁。Preferably, the material of the outer tube and the mandrel is stainless steel or nickel iron.

本发明的有益效果：本发明能有效解决弹簧圈输送过程的变形问题，减少摩擦力和降低折裂风险，使弹簧圈输送长度更长，互锁机构能实现在弹簧圈输送过程中的回撤，方便弹簧圈的调整。Beneficial effects of the present invention: the present invention can effectively solve the deformation problem in the conveying process of the spring coil, reduce friction and reduce the risk of fracture, make the conveying length of the coil longer, and the interlocking mechanism can realize the retraction during the conveying process of the coil , to facilitate the adjustment of the spring coil.

附图说明Description of drawings

图1为本发明结构示意图；Fig. 1 is the structural representation of the present invention;

图中：1、外管， 2、芯轴， 3、互锁机构，31、前半部，311、卡槽，312、柱形孔，32、后半部，4、弹簧圈， 5、挡盖。In the picture: 1. Outer tube, 2. Mandrel, 3. Interlocking mechanism, 31. Front half, 311, Card slot, 312, Cylindrical hole, 32, Back half, 4. Spring coil, 5. Cover .

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

如图1所示，一种弹簧圈输送系统，包括外管1、芯轴2、互锁机构3和弹簧圈4，所述互锁机构3包括可以卡合和分离的前半部31和后半部32，互锁机构3整体为柱形结构，前半部31和后半部32上均设置有卡槽311和容纳芯轴2的柱形孔312，两卡槽311之间能够相互卡合，在推送过程中可以实现前进和回撤，方便调整，在互锁机构3脱离芯轴2后即可相互分离，互锁机构3前半部31和后半部32分别与外管1和弹簧圈4焊接固定，所述芯轴2穿设于外管1互锁机构3和弹簧圈4内并能沿外管1、互锁机构3和弹簧圈4轴线移动，所述弹簧圈4远离互锁机构3一端设置有挡盖5，芯轴2穿入弹簧圈4内且抵接挡盖5从而推动整个弹簧圈4前进，芯轴2对弹簧圈4进行支撑，防止弹簧圈4运动过程中的变形，从而减小摩擦，降低折裂风险。As shown in FIG. 1, a coil delivery system includes an outer tube 1, amandrel 2, aninterlocking mechanism 3 and aspring coil 4. Theinterlocking mechanism 3 includes afront half 31 and a rear half that can be engaged and separated Theinterlocking mechanism 3 is a cylindrical structure as a whole, and thefront half 31 and therear half 32 are provided with acard slot 311 and acylindrical hole 312 for accommodating themandrel 2, and the twocard slots 311 can be engaged with each other. During the pushing process, it can be advanced and retracted, which is convenient for adjustment. After theinterlocking mechanism 3 is separated from themandrel 2, it can be separated from each other. Welding and fixing, themandrel 2 passes through theinterlocking mechanism 3 of the outer tube 1 and thespring coil 4 and can move along the axis of the outer tube 1, theinterlocking mechanism 3 and thespring coil 4, and thespring coil 4 is far away from theinterlocking mechanism 3. One end is provided with ablocking cover 5, themandrel 2 penetrates into thespring ring 4 and abuts the blockingcover 5 to push theentire spring ring 4 forward, and themandrel 2 supports thespring ring 4 to prevent deformation of thespring ring 4 during movement , thereby reducing friction and reducing the risk of cracking.

所述芯轴2与外管1内壁相贴合，能保证外管1稳定地沿芯轴2移动。Themandrel 2 is in contact with the inner wall of the outer tube 1 , which can ensure that the outer tube 1 moves stably along themandrel 2 .

所述外管1和芯轴2均采用不锈钢或镍铁。The outer tube 1 and themandrel 2 are made of stainless steel or nickel iron.

本发明工作过程：The working process of the present invention:

首先将外管1，芯轴2、互锁机构3和弹簧圈4组装好后一起穿入微导管中，当弹簧圈4头端到达微导管最远端时停止前进，单独推送外管1使弹簧圈4脱离内部芯轴2，弹簧圈4一部分进入到血管中，当弹簧圈4需要调整时，固定芯轴2，回撤外管1使弹簧圈4回撤到芯轴2上，重新推送外管1使弹簧圈4定位到理想位置，再一直推送到互锁机构3全部脱离芯轴2，此时互锁机构3前半部31和后半部32脱离，最后一起回撤外管1和芯轴2完成弹簧圈栓塞。First, the outer tube 1, themandrel 2, theinterlocking mechanism 3 and thespring coil 4 are assembled and inserted into the microcatheter together. When the head end of thespring coil 4 reaches the farthest end of the microcatheter, it stops moving forward, and the outer tube 1 is pushed separately to make the spring Thecoil 4 is separated from theinner mandrel 2, and a part of thecoil 4 enters the blood vessel. When thecoil 4 needs to be adjusted, themandrel 2 is fixed, the outer tube 1 is retracted, and thecoil 4 is retracted onto themandrel 2, and the outer tube is pushed again. The tube 1 positions thespring coil 4 to the ideal position, and then pushes it until theinterlocking mechanism 3 is completely separated from themandrel 2. At this time, thefront half 31 and therear half 32 of theinterlocking mechanism 3 are separated, and finally the outer tube 1 and the core are withdrawn together. Axle 2 completes the spring coil plug.

尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换,凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (4)

1. A spring coil conveying system, characterized by: including outer tube (1), dabber (2), interlocking device (3) and spring coil (4), interlocking device (3) are including first half (31) and the latter half (32) that can block and separate, and interlocking device (3) front and back are fixed with outer tube (1) and spring coil (4) respectively, dabber (2) are worn to locate in outer tube (1) interlocking device (3) and spring coil (4) and can be followed outer tube (1), interlocking device (3) and spring coil (4) axis and removed, spring coil (4) are kept away from interlocking device (3) one end and are provided with fender lid (5).

2. The spring coil delivery system of claim 1, wherein: the front half part (31) and the rear half part (32) of the interlocking mechanism (3) are respectively provided with a clamping groove (311) and a cylindrical hole (312) for accommodating the mandrel (2).

3. The spring coil delivery system of claim 1, wherein: the mandrel (2) is attached to the inner wall of the outer tube (1).

4. The spring coil delivery system of claim 1, wherein: the outer pipe (1) and the mandrel (2) are made of stainless steel or ferronickel.

Images