CN202313820U - Balloon for extending peripheral vessel stent - Google Patents

Abstract

Translated fromChinese

本实用新型涉及一种用于扩张外周血管支架的球囊，其特征在于，球囊前段使用非顺应性材料制作，大体如圆柱形，其直径恒定，不随球囊内压力升降而变化，球囊前段外径与外周血管的内径相适应；球囊后段使用顺应性材料制作，在囊内充以液体时，囊体直径随压力增大而增大。本实用新型球囊将顺应性部分与非顺应性部分结合为一体，使分支动脉开口狭窄性病变的腔内治疗技术、开窗支架型血管技术、分支动脉夹层的腔内治疗技术变得更简单、合理、有效、实用。

The utility model relates to a balloon for expanding peripheral vascular stents, which is characterized in that the front part of the balloon is made of non-compliant material, which is generally cylindrical in shape, and its diameter is constant and does not change with the pressure rise and fall in the balloon. The outer diameter of the front section is adapted to the inner diameter of the peripheral blood vessel; the back section of the balloon is made of compliant material, and when the balloon is filled with liquid, the diameter of the balloon increases as the pressure increases. The balloon of the utility model combines the compliance part and the non-compliance part as a whole, so that the intracavity treatment technology of branch arterial stenosis lesions, fenestrated stent-type blood vessel technology, and the intracavity treatment technology of branch artery dissection become simpler , Reasonable, effective and practical.

Description

Translated fromChinese

一种用于扩张外周血管支架的球囊A balloon for expanding peripheral vascular stent

技术领域technical field

本实用新型涉及对人体实施介入治疗时所使用的医疗器械，尤其涉及用于外周血管或植入人体的血管支架实施扩张操作的球囊。 The utility model relates to a medical device used for interventional treatment on a human body, in particular to a balloon used for expanding peripheral blood vessels or vascular stents implanted in a human body. the

背景技术Background technique

对血管疾病实施血管腔内治疗的常用方法是在血管内植入金属网状支架血管。对于发生在主动脉分支血管开口部的狭窄性病变，在实施血管腔内治疗，植入支架血管后，常因为近端支架不能与主动脉壁紧密贴合而影响远期效果。主动脉瘤腔内修复技术应用开窗支架重建内脏动脉时，内脏动脉支架与开窗支架型血管之间的结合同样需要将内脏动脉支架的主动脉侧做成“喇叭口”形态使之与主动脉内支架型血管有更好的结合。主动脉夹层累及内脏动脉并形成破口时，处理这种裂口时需要覆膜支架，而且最好将覆膜支架的主动脉侧通过一种装置成型为“喇叭口”状实现良好的贴合。所有这些临床问题需要一种特殊的球囊来完成。现有支架血管输送器所装置的球囊要么是顺应性的，整个球囊均匀膨胀如气球；要么整个球囊都是非顺应性的，不能胀缩。这两种类型的球囊都难以使支架准确到位，特别是不能实现“喇叭口”成型。 A common method for endovascular treatment of vascular diseases is to implant metal mesh stents in blood vessels. For stenotic lesions that occur at the opening of aortic branch vessels, after endovascular treatment and stent implantation, the long-term effect is often affected because the proximal stent cannot fit closely with the aortic wall. When endovascular repair of aortic aneurysms uses fenestrated stents to reconstruct visceral arteries, the combination of visceral artery stents and fenestrated stent-type vessels also requires the aortic side of the visceral artery stents to be made into a "bell mouth" shape so that it is in line with the aorta. Intra-arterial stent-type vessels have better binding. When aortic dissection involves visceral arteries and forms a breach, a stent graft is required to deal with the breach, and it is best to shape the aortic side of the stent graft into a "bell mouth" shape with a device to achieve a good fit. All these clinical problems require a special kind of balloon to complete. The balloon installed in the existing stent vessel delivery device is either compliant, and the entire balloon expands evenly like a balloon; or the entire balloon is non-compliant, and cannot be expanded or contracted. These two types of balloons are difficult to accurately position the stent, especially the "bell mouth" shape cannot be achieved. the

实用新型内容Utility model content

本实用新型的目的在于提供一种装置于支架血管输送器的球囊结构，球囊可以将血管支架成型为“喇叭口”样结构，使分支动脉开口狭窄性病变的腔内治疗技术、开窗支架型血管技术、分支动脉夹层的腔内治疗技术变得更简单、合理、有效、实用。 The purpose of this utility model is to provide a balloon structure installed in the stent vessel delivery device, the balloon can shape the vascular stent into a "trumpet" like structure, so that the intracavitary treatment technology and fenestration of branch artery stenosis lesions Stent-type blood vessel technology and endovascular treatment technology for branch artery dissection have become simpler, more reasonable, more effective and more practical. the

本实用新型为一种球囊，包括前段的非顺应性部分和后段的顺应性部分。前段非顺应性部分使用非顺应性材料制作，大体如圆柱形，其直径恒定，不随球囊内压力升降而变化。球囊前段非顺应性部分的外径与外周血管的内径相适应。球囊后段顺应性部分使用顺应性材料制作，在囊内充以液体时，囊体直径随压力增 大而增大。球囊的导管部分与普通导管结构相同，包括中心腔和侧腔，中心腔容纳导丝通过，侧腔用于液体流通，对球囊加压充注。 The utility model relates to a balloon, which comprises a non-compliance part of the front section and a compliance part of the rear section. The non-compliant part of the front section is made of non-compliant material and is generally cylindrical in shape with a constant diameter and does not change with the rise and fall of the pressure inside the balloon. The outer diameter of the non-compliant part of the front section of the balloon is adapted to the inner diameter of the peripheral blood vessel. The compliant part of the posterior segment of the balloon is made of compliant material, and when the sac is filled with liquid, the diameter of the sac increases with the increase of the pressure. The catheter part of the balloon has the same structure as the common catheter, including a central lumen and a side lumen. The central lumen accommodates the passage of the guide wire, and the side lumens are used for fluid circulation to pressurize and inflate the balloon. the

作为优化，在对应于球囊前段非顺应性部分和后段顺应性部分结合部的导管上装设标志物，该标志物采用X线透视下可视材料制作，用以在植入血管支架或对人体血管实施腔内治疗操作过程中，在X线透视下观察球囊所在位置，特别用以判断球囊前后两部分交界处是否位于分支血管开口处。 As an optimization, a marker is installed on the catheter corresponding to the junction of the non-compliant part of the front part of the balloon and the compliant part of the back part. During the endovascular treatment of human blood vessels, observe the position of the balloon under X-ray fluoroscopy, especially to judge whether the junction of the front and rear parts of the balloon is located at the opening of the branch blood vessel. the

作为优化，球囊前段非顺应性部分和后段顺应性部分之间设置隔断膜，使前后各自一室。球囊导管设置为三腔管，中心管容纳导丝行走，两条侧管分别与球囊的两室相通。如此结构，可以根据手术操作的需要，通过注入液体的多少分别控制球囊前后两室的压力。 As an optimization, a partition film is set between the non-compliant part of the front part of the balloon and the compliant part of the back part, so that the front and rear parts have separate chambers. The balloon catheter is set as a three-lumen tube, the central tube accommodates the guide wire, and the two side tubes communicate with the two chambers of the balloon respectively. With such a structure, the pressures of the front and rear chambers of the balloon can be controlled respectively by the amount of liquid injected according to the needs of the operation. the

安装血管支架时，球囊前部非顺应性部分带动血管支架到达分支血管内预定部位，之后向球囊内注入液体，后部球囊膨胀，推动血管支架近端管口部扩张成喇叭口形。还可以靠球囊的力量向分支血管方向推动支架，使支架紧密贴附于主动脉壁。 When the vascular stent is installed, the non-compliant part of the front part of the balloon drives the vascular stent to the predetermined position in the branch vessel, and then injects liquid into the balloon, and the rear balloon expands to push the proximal nozzle of the vascular stent to expand into a trumpet shape. The force of the balloon can also be used to push the stent toward the direction of the branch vessels, so that the stent can be tightly attached to the aortic wall. the

本实用新型球囊将顺应性部分与非顺应性部分结合为一体，使分支动脉开口狭窄性病变的腔内治疗技术、开窗支架型血管技术、分支动脉夹层的腔内治疗技术变得更简单、合理、有效、实用。 The balloon of the utility model combines the compliance part and the non-compliance part as a whole, so that the intracavitary treatment technology of branch arterial stenosis lesion, fenestrated stent type blood vessel technology, and intracavitary treatment technology of branch artery dissection become simpler , Reasonable, effective and practical. the

附图说明Description of drawings

图1为本实用新型球囊瘪缩状态结构示意图； Fig. 1 is the structure schematic diagram of the deflated state of the utility model balloon;

图2为本实用新型球囊充盈后结构示意图； Fig. 2 is the schematic diagram of the structure of the utility model after the balloon is inflated;

图3为本实用新型球囊充盈后纵剖面结构示意图； Figure 3 is a schematic diagram of the longitudinal section structure of the utility model after the balloon is inflated;

图4为球囊前后部之间设有隔断膜，使前后各自一室结构示意图。 Fig. 4 is a schematic diagram of the structure of the front and rear parts of the balloon with a partition film, so that the front and rear parts have one chamber respectively. the

图中标号所表示的部件或部位为：1-球囊前端部；2-球囊前段非顺应性部分；3-球囊导管中心管；4-球囊后段顺应性部分；5-球囊导管；6-球囊前段液体流通孔；7-球囊后段液体流通孔；8-X射线透视标志物；10-球囊导管侧管。 The components or parts indicated by the numbers in the figure are: 1-the front end of the balloon; 2-the non-compliant part of the front part of the balloon; 3-the central tube of the balloon catheter; Catheter; 6-the fluid flow hole in the front part of the balloon; 7-the liquid flow hole in the back part of the balloon; 8-X-ray fluoroscopy markers; 10-the side tube of the balloon catheter. the

具体实施方式Detailed ways

本实用新型是为植入分支动脉血管支架，对输送器球囊所作的结构改进。本 实用新型球囊也适用于开窗支架型血管技术、分支动脉夹层的腔内治疗技术中应用。以下结合附图和实施例对本实用新型作进一步说明。 The utility model relates to the structural improvement of the conveyor balloon for implanting branch arterial stents. The balloon of the utility model is also suitable for application in fenestration stent-type blood vessel technology and endovascular treatment technology of branch arterial dissection. Below in conjunction with accompanying drawing and embodiment the utility model is described further. the

如图1所示，本实用新型球囊在备用状态下球囊瘪缩，大体为圆柱形，分为前段非顺应性部分2和后段顺应性部分4。前段非顺应性部分2使用非顺应性材料制作，后段顺应性部分4使用顺应性材料制作。 As shown in FIG. 1 , the balloon of the utility model is deflated in a standby state, and is generally cylindrical, and is divided into a frontnon-compliant part 2 and a rearcompliant part 4 . Thenon-compliant part 2 of the front section is made of non-compliant material, and thecompliant part 4 of the rear section is made of compliant material. the

如图2所示，在向球囊内充入液体后，球囊前段非顺应性部分2和后段顺应性部分4呈现不同形状变化。球囊前段非顺应性部分2内壁与球囊导管5之间存在腔隙，在向球囊注入液体后，球囊前段非顺应性部分2充盈，但依然保持其圆柱形，其外径与血管支架或实施腔内治疗的人体分支血管内径相适应。球囊前段非顺应性部分2的非顺应性特点，使其内外径不随球囊内压力变化而改变。当向球囊内注入液体后，球囊后段顺应性部分4膨胀如球，囊体直径随压力增大而逐步增大。 As shown in FIG. 2 , after the balloon is filled with liquid, thenon-compliant part 2 of the front part of the balloon and thecompliant part 4 of the back part of the balloon show different shape changes. There is a cavity between the inner wall of thenon-compliant part 2 of the front part of the balloon and theballoon catheter 5. After the liquid is injected into the balloon, thenon-compliant part 2 of the front part of the balloon is filled, but still maintains its cylindrical shape, and its outer diameter is the same as that of the blood vessel. Adapt to the internal diameter of the stent or the branch blood vessel of the human body for endoluminal treatment. The non-compliance feature of thenon-compliance part 2 in the front section of the balloon makes the internal and external diameters not change with the change of the pressure in the balloon. When the liquid is injected into the balloon, thecompliant part 4 of the posterior segment of the balloon expands like a ball, and the diameter of the balloon gradually increases with the increase of the pressure. the

如图3所示，球囊导管5设有多个管腔3、10，其中心管3容纳导丝滑动，侧管10用于向球囊内注入液体。侧管10在球囊腔内设有液体流通孔6、7。球囊的前段非顺应性部分2和后段顺应性部分4可以是相通的一室，球囊导管5设置一个侧管10，当通过该侧管10向球囊内注入液体时，球囊的前段非顺应性部分2和后段顺应性部分4同时充盈。球囊结构的一种改进形式是，球囊的前段非顺应性部分2和后段顺应性部分4之间设置隔断膜，将球囊的内部空间分隔为二室，球囊导管5则设置二个侧管，分别通往球囊的前后二室，分别用以向前后二室注入液体，可控制和调整前后二室达到不同的内部液体压力。 As shown in FIG. 3 , theballoon catheter 5 is provided with a plurality oflumens 3 , 10 , thecentral tube 3 of which accommodates the sliding guide wire, and theside tube 10 is used for injecting liquid into the balloon. Theside tube 10 is provided withliquid circulation holes 6 and 7 in the cavity of the balloon. The front segmentnon-compliance part 2 and the rearsegment compliance part 4 of the balloon can be a chamber communicated, and theballoon catheter 5 is provided with aside tube 10. When liquid is injected into the balloon through theside tube 10, the balloon's The anteriornon-compliant part 2 and the posteriorcompliant part 4 are inflated simultaneously. An improved form of the balloon structure is that a partition film is set between the frontnon-compliant part 2 and the rearcompliant part 4 of the balloon, and the inner space of the balloon is divided into two chambers, and theballoon catheter 5 is provided with two chambers. Two side tubes lead to the front and rear chambers of the balloon respectively, and are used to inject liquid into the front and rear chambers respectively, so that the front and rear chambers can be controlled and adjusted to achieve different internal liquid pressures. the

如图1、2所示，在球囊导管上装设X线透视标志物8。X线透视标志物8可以设置两个，其中一个位于球囊前后两部分交界处，另一个位于球囊后端部。X线透视标志物8也可以只设置一个，位于球囊前后两部分交界处。X线透视标志物8采用X线透视下可视材料制作，用以在植入血管支架或对人体血管实施腔内治疗操作过程中，在X线透视下观察球囊所在位置，特别用以判断球囊前后两部分交界处是否位于分支血管开口处。 As shown in Figures 1 and 2, anX-ray perspective marker 8 is installed on the balloon catheter. TwoX-ray fluoroscopy markers 8 can be provided, one of which is located at the junction of the front and rear parts of the balloon, and the other is located at the rear end of the balloon. Only oneX-ray fluoroscopy marker 8 can also be provided, which is located at the junction of the front and rear parts of the balloon. TheX-ray fluoroscopy marker 8 is made of visible materials under X-ray fluoroscopy, and is used to observe the position of the balloon under X-ray fluoroscopy during implantation of vascular stents or intracavitary treatment of human blood vessels, especially for judging Whether the junction of the front and rear parts of the balloon is located at the opening of the branch vessel. the

Claims (3)

Translated fromChinese

1.一种用于扩张外周血管支架的球囊，其特征在于，球囊包括前段非顺应性部分和后段顺应性部分，前段非顺应性部分使用非顺应性材料制作，大体如圆柱形，其直径恒定，不随球囊内压力升降而变化，球囊前段非顺应性部分的外径与外周血管的内径相适应；球囊后段顺应性部分使用顺应性材料制作，在囊内充以液体时，囊体直径随压力增大而增大。1. A balloon for expanding peripheral vascular stents, characterized in that the balloon comprises an anterior segment non-compliant part and a rear segment compliant part, and the anterior segment non-compliant part is made of a non-compliant material, substantially as a cylinder, Its diameter is constant and does not change with the rise and fall of the pressure in the balloon. The outer diameter of the non-compliant part of the front part of the balloon is adapted to the inner diameter of the peripheral blood vessel; the compliant part of the back part of the balloon is made of compliant materials and filled with liquid When , the capsule diameter increases with the increase of pressure.2.根据权利要求1所述的球囊，其特征在于，在对应于球囊前段非顺应性部分和后段顺应性部分结合部的导管上装设标志物，该标志物采用X线透视下可视材料制作。2. The balloon according to claim 1, characterized in that a marker is installed on the catheter corresponding to the junction of the non-compliant part of the front part of the balloon and the compliant part of the back part, and the marker can be seen under X-ray fluoroscopy. Depending on the material.3.根据权利要求1所述的球囊，其特征在于，球囊前段非顺应性部分和后段顺应性部分之间设置隔断膜，使前后各自一室，球囊导管设置为三腔管，其中中心管容纳导丝，两条侧管分别与球囊的两室相通。 3. The balloon according to claim 1, characterized in that, a partition membrane is set between the non-compliant part of the front part of the balloon and the compliant part of the back part, so that the front and back have one chamber respectively, and the balloon catheter is set as a three-lumen tube, The central tube accommodates the guide wire, and the two side tubes communicate with the two chambers of the balloon respectively. the

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