技术领域Technical Field
本发明涉及医疗器械技术领域，尤其涉及一种多向辅助定位超选鞘管套件。The invention relates to the technical field of medical devices, and in particular to a multi-directional auxiliary positioning superselective sheath kit.
背景技术Background Art
随着微创技术的快速发展，腔内修复术已成为治疗动脉疾病（如主动脉瘤或主动脉夹层）的关键手段之一。这种治疗方法的优势在于创伤小、恢复快并且并发症较少。腔内修复术通常通过使用覆膜支架隔离病灶来实现治疗效果，但这一过程可能会阻断分支动脉的血流。为了保持这些分支动脉的通畅，通常需要运用超选技术和重建技术。With the rapid development of minimally invasive technology, endovascular repair has become one of the key means of treating arterial diseases such as aortic aneurysm or aortic dissection. The advantages of this treatment method are less trauma, faster recovery and fewer complications. Endovascular repair usually achieves its therapeutic effect by isolating the lesion with a covered stent, but this process may block blood flow in the branch arteries. In order to maintain the patency of these branch arteries, superselective techniques and reconstruction techniques are usually required.
现有的腔内修复技术主要包括以下几个步骤：使用影像设备对病变部位进行造影成像，以便医护人员能够精确定位分支血管的开口；将鞘管（例如导引导管、输送鞘管或导引鞘管）从股动脉或肱动脉送入主动脉，从而建立通往病灶的通道；通过鞘管送入带有特定头端角度的指引导管，使导管头端对准分支血管开口；沿着指引导管送入导丝，引导其进入分支血管内部；撤出指引导管，保留导丝，并沿导丝送入球囊或支架等后续器械。Existing intravascular repair technology mainly includes the following steps: using imaging equipment to perform angiography of the lesion site so that medical staff can accurately locate the opening of the branch blood vessel; sending a sheath (such as a guide catheter, a delivery sheath or a guide sheath) from the femoral artery or brachial artery into the aorta to establish a channel to the lesion; sending a guiding catheter with a specific head angle through the sheath to align the catheter tip with the opening of the branch blood vessel; sending a guide wire along the guiding catheter to guide it into the branch blood vessel; withdrawing the guiding catheter, retaining the guide wire, and sending subsequent devices such as balloons or stents along the guide wire.
然而，现有技术面临着一些挑战：分支血管开口的方向存在显著的解剖学变异，使得定位变得非常困难；传统的指引导管头端角度固定，难以适应不同血管的走向，增加了操作难度；需要频繁更换不同角度的指引导管，这不仅增加了操作的复杂性，而且延长了手术时间；对医疗器械和医护人员的经验和技术水平有较高要求。However, existing technologies face some challenges: there are significant anatomical variations in the direction of branch vessel openings, making positioning very difficult; the traditional guiding catheter tip has a fixed angle, which is difficult to adapt to the direction of different blood vessels, increasing the difficulty of operation; the guiding catheters of different angles need to be frequently replaced, which not only increases the complexity of the operation, but also prolongs the operation time; and there are high requirements for the experience and technical level of medical equipment and medical staff.
为了解决上述问题，本领域已经开发了一些改进方案，例如可调弯鞘管，它能够实现导管头端角度的连续调节。不过，这些解决方案也存在局限性。可调弯鞘管的加工难度较大，结构较为复杂，成本较高；可调弯鞘管的可调弯长度是固定的，若长度过长，则可能无法实现所需的调节角度；若长度过短，则在血管内可能无法稳定，容易发生移动或转动，从而影响导丝的选择；当需要同时处理多个分支血管时，可调弯鞘管通常对分支血管进行逐一超选和重建，无法同时对多个分支血管进行超选。In order to solve the above problems, some improved solutions have been developed in this field, such as adjustable bend sheath, which can realize continuous adjustment of the angle of the catheter tip. However, these solutions also have limitations. The processing of adjustable bend sheath is difficult, the structure is complex, and the cost is high; the adjustable bend length of the adjustable bend sheath is fixed. If the length is too long, the required adjustment angle may not be achieved; if the length is too short, it may not be stable in the blood vessel and may easily move or rotate, thereby affecting the selection of the guide wire; when multiple branch vessels need to be processed at the same time, the adjustable bend sheath usually superselects and reconstructs the branch vessels one by one, and multiple branch vessels cannot be superselected at the same time.
鉴于上述技术现状，开发一种能够经济、稳定、精确地调整角度并可适用于同时超选多个分支血管的器械，成为了本领域迫切需要解决的问题。In view of the above-mentioned technical status, developing an instrument that can adjust the angle economically, stably and accurately and can be used for superselecting multiple branch blood vessels at the same time has become an urgent problem that needs to be solved in this field.
发明内容Summary of the invention
本发明提供一种多向辅助定位超选鞘管套件，用以解决现有技术中对于涉及分支过多时难以准确调整角度，无法超选多个分支的缺陷，实现高效、精确地对多个分支血管进行超选操作。The present invention provides a multi-directional auxiliary positioning superselective sheath kit, which is used to solve the defects in the prior art that it is difficult to accurately adjust the angle when there are too many branches and multiple branches cannot be superselected, and realizes efficient and accurate superselective operation on multiple branch blood vessels.
本发明提供一种多向辅助定位超选鞘管套件，包括：鞘管件，所述鞘管件具有用于超选器械通过的主通道，所述鞘管件的前端设置有至少一个允许所述超选器械进出的侧孔；导向定位件，包括延伸管和设置于所述延伸管的前端的导向件，所述延伸管和所述导向件具有在所述主通道内前后移动和旋转的自由度，所述导向件朝向所述延伸管的一端设置有弧形的导向面；在所述导向面对齐于所述侧孔的情况下，所述超选器械在沿所述主通道前进的过程中，所述导向面能够将所述超选器械的前端导向所述侧孔之外。The present invention provides a multi-directional auxiliary positioning superselection sheath tube kit, comprising: a sheath tube component, the sheath tube component having a main channel for a superselection instrument to pass through, the front end of the sheath tube component being provided with at least one side hole allowing the superselection instrument to enter and exit; a guide positioning component, comprising an extension tube and a guide component provided at the front end of the extension tube, the extension tube and the guide component having the freedom to move forward and backward and rotate in the main channel, the guide component being provided with an arc-shaped guide surface toward one end of the extension tube; when the guide surface is aligned with the side hole, the guide surface can guide the front end of the superselection instrument to outside the side hole during the process of the superselection instrument advancing along the main channel.
根据本发明提供的一种多向辅助定位超选鞘管套件，所述导向定位件具有用于导引导丝通过的通孔，所述通孔贯穿所述延伸管和所述导向件；所述导引导丝能够伸出所述导向定位件的前端，并与血管壁接触，对器械起到稳定的固定作用，防止超选过程中移位和旋转。According to a multi-directional auxiliary positioning superselection sheath kit provided by the present invention, the guide positioning member has a through hole for the guide guide wire to pass through, and the through hole runs through the extension tube and the guide member; the guide guide wire can extend out of the front end of the guide positioning member and contact with the blood vessel wall, thereby playing a stable fixing role for the instrument and preventing displacement and rotation during the superselection process.
根据本发明提供的一种多向辅助定位超选鞘管套件，多个所述侧孔沿圆周方向分布于所述鞘管件的同一轴向位置上；或者，多个所述侧孔分别位于所述鞘管件的不同轴向位置，并分别朝向不同径向方向。According to a multi-directional auxiliary positioning superselective sheath tube kit provided by the present invention, the multiple side holes are distributed along the circumferential direction at the same axial position of the sheath tube component; or, the multiple side holes are respectively located at different axial positions of the sheath tube component and respectively face different radial directions.
根据本发明提供的一种多向辅助定位超选鞘管套件，所述导向件的外形呈锥形，连接于所述延伸管的一端为所述导向件的大头端；所述导向件的大头端的外径小于等于所述鞘管件的内径。According to a multi-directional auxiliary positioning superselective sheath tube kit provided by the present invention, the guide piece is conical in shape, and the end connected to the extension tube is the large end of the guide piece; the outer diameter of the large end of the guide piece is less than or equal to the inner diameter of the sheath tube piece.
根据本发明提供的一种多向辅助定位超选鞘管套件，所述侧孔的内径大于所述超选器械的外径；在所述超选器械的至少一部分伸出所述侧孔的情况下，能够通过移动所述导向定位件，以使所述导向面在所述鞘管件内压紧或放松所述超选器械，以调节伸出所述侧孔的所述超选器械的伸出角度。According to a multi-directional auxiliary positioning superselective sheath kit provided by the present invention, the inner diameter of the side hole is larger than the outer diameter of the superselective instrument; when at least a portion of the superselective instrument extends out of the side hole, the guide positioning member can be moved so that the guide surface can press or loosen the superselective instrument in the sheath member to adjust the extension angle of the superselective instrument extending out of the side hole.
根据本发明提供的一种多向辅助定位超选鞘管套件，在任一所述侧孔的至少一侧，所述鞘管件设置有第一显影标记；所述导向件设置有第二显影标记，或者所述导向件整体具有可显影特性。According to a multi-directional auxiliary positioning superselective sheath tube kit provided by the present invention, on at least one side of any of the side holes, the sheath tube component is provided with a first developing mark; the guide component is provided with a second developing mark, or the guide component as a whole has a developing property.
根据本发明提供的一种多向辅助定位超选鞘管套件，所述鞘管件和所述延伸管的后端分别带有方向指引标记，所述方向指引标记用于辅助确定所述鞘管件和所述导向定位件之间的相对旋转角度。According to a multi-directional auxiliary positioning super-selective sheath tube kit provided by the present invention, the rear ends of the sheath tube component and the extension tube are respectively provided with direction guidance marks, and the direction guidance marks are used to assist in determining the relative rotation angle between the sheath tube component and the guide positioning component.
根据本发明提供的一种多向辅助定位超选鞘管套件，所述延伸管的后端设置有多个距离标记带；该多个所述距离标记带沿所述延伸管的长度方向间隔分布，以用于辅助判断所述导向定位件和所述鞘管件之间的相对轴向位置。According to a multi-directional auxiliary positioning super-selective sheath tube kit provided by the present invention, a plurality of distance marking bands are arranged at the rear end of the extension tube; the plurality of distance marking bands are spaced apart along the length direction of the extension tube to assist in determining the relative axial position between the guide positioning member and the sheath tube member.
根据本发明提供的一种多向辅助定位超选鞘管套件，包括管座组件，所述管座组件包括连接器，以及设置于连接器和所述鞘管件的后端之间的止血阀；所述连接器具有分叉的形状，所述导向定位件的后端操作结构通过其中一个所述连接器的分叉接口延伸至所述连接器的外部。According to the present invention, a multi-directional auxiliary positioning super-selective sheath kit is provided, including a tube seat assembly, which includes a connector and a hemostatic valve arranged between the connector and the rear end of the sheath tube; the connector has a forked shape, and the rear end operating structure of the guide positioning member extends to the outside of the connector through one of the forked interfaces of the connector.
根据本发明提供的一种多向辅助定位超选鞘管套件，所述鞘管件为多层复合管。According to a multi-directional auxiliary positioning super-selective sheath tube kit provided by the present invention, the sheath tube component is a multi-layer composite tube.
本发明提供的多向辅助定位超选鞘管套件，通过在鞘管件前端设置至少一个侧孔，并与导向定位件配合使用，实现了对超选器械的精准定位和引导，使得超选过程更加便捷和精确。该套件能够在不同位置、方向上对超选器械进行导向，有效克服了传统指引导管角度固定的问题。The multi-directional auxiliary positioning superselection sheath kit provided by the present invention realizes accurate positioning and guidance of the superselection instrument by setting at least one side hole at the front end of the sheath and using it in conjunction with the guide positioning piece, making the superselection process more convenient and accurate. The kit can guide the superselection instrument in different positions and directions, effectively overcoming the problem of fixed angle of the traditional guiding catheter.
具体来说，通过在鞘管件前端设置多个侧孔，并与导向定位件配合使用，能够实现对超选器械的精准导向。这样不仅可以根据需要选择合适的侧孔，还可以通过调整导引导管伸出侧孔的长度来改变其轴向上的角度，使得单一的导管能够适应不同的血管走向。Specifically, by setting multiple side holes at the front end of the sheath tube and using them in conjunction with the guide positioning piece, precise guidance of the superselective instrument can be achieved. In this way, not only can the appropriate side hole be selected according to needs, but also the axial angle of the guide catheter can be changed by adjusting the length of the guide catheter extending out of the side hole, so that a single catheter can adapt to different blood vessel directions.
导向定位件内部设有通孔，可供导引导丝通过，并与血管壁接触，以此固定和约束鞘管件。这种方式有效地防止了在超选分支过程中器械的移位和旋转，以及器械超选成功后又从分支血管中脱出的风险。此外，当某个侧孔已成功放置了器械时，该器械本身也能起到二次固定和约束的作用。The guide positioning part is provided with a through hole inside, through which the guide wire can pass and contact the blood vessel wall to fix and constrain the sheath. This method effectively prevents the displacement and rotation of the instrument during the superselection of the branch, as well as the risk of the instrument coming out of the branch vessel after the superselection is successful. In addition, when a device has been successfully placed in a side hole, the device itself can also play a role of secondary fixation and restraint.
环周和螺旋结构的多个侧孔设计允许在同一时间内从不同位置插入多个器械，解决了传统手术中因单孔通道而需要反复更换器械的问题。这样不仅提高了手术效率，还减少了因频繁抽拔器械带来的风险。The multiple side hole design of the circumferential and spiral structure allows multiple instruments to be inserted from different positions at the same time, solving the problem of repeated instrument replacement due to the single-hole channel in traditional surgery. This not only improves surgical efficiency, but also reduces the risks caused by frequent instrument extraction.
弧形导向面的设计确保了超选器械能够沿着侧孔正确进出，无论血管走向如何变化都能适应，降低了操作难度，医护人员能够更高效、更成功地完成手术任务。The design of the curved guide surface ensures that the super-selective instruments can enter and exit correctly along the side hole, and can adapt to changes in the direction of the blood vessels, thereby reducing the difficulty of operation and enabling medical staff to complete surgical tasks more efficiently and successfully.
综上所述，本发明的多向辅助定位超选鞘管套件能够有效克服传统技术中存在的问题，提高了定位分支血管开口的准确性，简化了手术流程，并显著提升了手术的安全性和成功率。In summary, the multi-directional auxiliary positioning superselective sheath kit of the present invention can effectively overcome the problems existing in traditional technologies, improve the accuracy of locating branch blood vessel openings, simplify the surgical process, and significantly improve the safety and success rate of the operation.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本发明或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，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，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
图1是本发明提供的多向辅助定位超选鞘管套件的剖面结构示意图之一。FIG. 1 is one of the schematic cross-sectional views of the multi-directional auxiliary positioning superselective sheath kit provided by the present invention.
图2是本发明提供的多向辅助定位超选鞘管套件的剖面结构示意图之二。FIG. 2 is a second schematic diagram of the cross-sectional structure of the multi-directional auxiliary positioning superselective sheath kit provided by the present invention.
图3是本发明提供的多向辅助定位超选鞘管套件的鞘管件的结构示意图。FIG. 3 is a schematic structural diagram of a sheath tube component of a multi-directional auxiliary positioning superselective sheath tube kit provided by the present invention.
图4是本发明提供的多向辅助定位超选鞘管套件的鞘管件的局部放大结构示意图。FIG. 4 is a schematic diagram of a partially enlarged structure of a sheath tube component of the multi-directional auxiliary positioning superselective sheath tube kit provided by the present invention.
图5是本发明提供的多向辅助定位超选鞘管套件的导向定位件的结构示意图。FIG. 5 is a schematic structural diagram of a guide positioning member of a multi-directional auxiliary positioning superselective sheath tube kit provided by the present invention.
图6是本发明提供的多向辅助定位超选鞘管套件配合超选器械使用的结构示意图。FIG6 is a schematic diagram of the structure of the multi-directional auxiliary positioning superselective sheath kit provided by the present invention for use in conjunction with a superselective instrument.
图7是本发明提供的多向辅助定位超选鞘管套件的使用状态示意图之一。FIG. 7 is one of the schematic diagrams of the use state of the multi-directional auxiliary positioning superselective sheath kit provided by the present invention.
图8是本发明提供的多向辅助定位超选鞘管套件的使用状态示意图之二。FIG. 8 is a second schematic diagram of the use status of the multi-directional auxiliary positioning superselective sheath kit provided by the present invention.
图9是本发明提供的多向辅助定位超选鞘管套件的使用状态示意图之三。FIG. 9 is a third schematic diagram of the use status of the multi-directional auxiliary positioning superselective sheath kit provided by the present invention.
图10是本发明提供的多向辅助定位超选鞘管套件的使用状态示意图之四。FIG. 10 is a fourth schematic diagram of the use status of the multi-directional auxiliary positioning superselective sheath kit provided by the present invention.
附图标记：Reference numerals:
1、超选导管；2、导引导丝；3、血管壁；10、鞘管件；11、侧孔；12、第一显影标记；13、方向指引标记；21、延伸管；22、导向件；23、导向面；24、通孔；25、距离标记带；31、连接器；32、止血阀；33、分叉接口。1. Superselective catheter; 2. Guide wire; 3. Blood vessel wall; 10. Sheath tube; 11. Side hole; 12. First development mark; 13. Direction indicator mark; 21. Extension tube; 22. Guide member; 23. Guide surface; 24. Through hole; 25. Distance marking tape; 31. Connector; 32. Hemostatic valve; 33. Bifurcation interface.
具体实施方式DETAILED DESCRIPTION
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明中的附图，对本发明中的技术方案进行清楚、完整地描述，显然，所描述的实施例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作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。In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
在本发明实施例的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”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发明实施例和简化描述，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发明实施例的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“设置”、“安装”、“连接”应作广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
下面结合图1-图10描述本发明的多向辅助定位超选鞘管套件的具体实施方式。The specific implementation of the multi-directional auxiliary positioning superselective sheath kit of the present invention will be described below in conjunction with FIGS. 1 to 10 .
如图1和图2所示，本发明提供一种多向辅助定位超选鞘管套件，包括：鞘管件10，鞘管件10具有用于超选器械通过的主通道，鞘管件10的前端设置有至少一个允许超选器械进出的侧孔11；导向定位件，包括延伸管21和设置于延伸管21的前端的导向件22，延伸管21和导向件22具有在主通道内前后移动和旋转的自由度，导向件22朝向延伸管21的一端设置有弧形的导向面23。在导向面23对齐于侧孔11的情况下，超选器械在沿主通道前进的过程中，导向面23能够将超选器械的前端导向侧孔11之外。As shown in Fig. 1 and Fig. 2, the present invention provides a multi-directional auxiliary positioning superselection sheath kit, comprising: a sheath tube member 10, the sheath tube member 10 has a main channel for superselection instruments to pass through, and the front end of the sheath tube member 10 is provided with at least one side hole 11 that allows the superselection instruments to enter and exit; a guide positioning member, comprising an extension tube 21 and a guide member 22 provided at the front end of the extension tube 21, the extension tube 21 and the guide member 22 have the freedom to move forward and backward and rotate in the main channel, and the guide member 22 is provided with an arc-shaped guide surface 23 at one end facing the extension tube 21. When the guide surface 23 is aligned with the side hole 11, the guide surface 23 can guide the front end of the superselection instrument to the outside of the side hole 11 during the process of the superselection instrument advancing along the main channel.
具体来说，鞘管件10内部具有一个主通道，用于让超选器械通过，例如超选导管1。在鞘管件10的前端设置了至少一个侧孔11，这些侧孔11允许超选导管1从中进出，并且每个侧孔11朝向鞘管件10的不同径向方向，从而可以适应不同分支血管的走向。导向定位件包括延伸管21和设置于延伸管21前端的导向件22。延伸管21和导向件22可以在主通道内自由前后移动和旋转，从而导向件22的位置可以根据需要进行调整。导向件22与延伸管21之间为偏轴连接，即导向件22相对于延伸管21中心线有一定的偏移。导向件22朝向延伸管21的一端设置有弧形的导向面23，当导向面23对齐于任一侧孔11时，它可以阻挡超选导管1的前端，从而确保导管沿着正确的侧孔11方向前进。Specifically, the sheath tube 10 has a main channel inside for passing superselective instruments, such as the superselective catheter 1. At least one side hole 11 is provided at the front end of the sheath tube 10, and these side holes 11 allow the superselective catheter 1 to enter and exit therefrom, and each side hole 11 faces a different radial direction of the sheath tube 10, so as to adapt to the direction of different branch blood vessels. The guide positioning member includes an extension tube 21 and a guide member 22 provided at the front end of the extension tube 21. The extension tube 21 and the guide member 22 can move back and forth and rotate freely in the main channel, so that the position of the guide member 22 can be adjusted as needed. The guide member 22 is eccentrically connected to the extension tube 21, that is, the guide member 22 has a certain offset relative to the center line of the extension tube 21. An arc-shaped guide surface 23 is provided at one end of the guide member 22 facing the extension tube 21. When the guide surface 23 is aligned with any side hole 11, it can block the front end of the superselective catheter 1, thereby ensuring that the catheter moves in the correct direction of the side hole 11.
当需要对特定分支血管进行超选时，导向定位件中的导向件22被调整到对应侧孔11的方向上。超选导管1沿着主通道前进，当它接触到导向件22上的弧形导向面23时，导向面23会阻挡导管前端，并将其导向到正确的侧孔11中。这样一来，即使面对复杂的血管结构，也可以确保超选导管1准确地进入目标分支血管。通过调整导向定位件的位置，可以方便地对不同方向的分支血管进行超选，显著降低了操作难度，提升了操作的效率和成功率。When it is necessary to superselect a specific branch vessel, the guide member 22 in the guide positioning member is adjusted to the direction of the corresponding side hole 11. The superselection catheter 1 moves along the main channel, and when it contacts the arc-shaped guide surface 23 on the guide member 22, the guide surface 23 blocks the front end of the catheter and guides it to the correct side hole 11. In this way, even in the face of complex vascular structures, it can be ensured that the superselection catheter 1 accurately enters the target branch vessel. By adjusting the position of the guide positioning member, branch vessels in different directions can be superselected conveniently, which significantly reduces the difficulty of operation and improves the efficiency and success rate of the operation.
此外，在上述方案中，侧孔11可以通过激光切割、冲压或切磨等多种加工工艺制成，并且侧孔11的形状可以设计为圆形、长圆形等多种形式。侧孔11的数量可以是一个或多个，并可根据需要进行周向或轴向排布，以适应不同分支血管的走向。鞘管件10的外径优选范围为4F-30F，以适应不同的介入需求。鞘管件10的内腔设计为可以容纳至少一根超选导管1，并且优选能够容纳多根超选导管1，以便同时处理多个分支血管。In addition, in the above scheme, the side hole 11 can be made by various processing techniques such as laser cutting, stamping or cutting and grinding, and the shape of the side hole 11 can be designed to be circular, oblong and other forms. The number of side holes 11 can be one or more, and can be arranged circumferentially or axially as needed to adapt to the direction of different branch blood vessels. The outer diameter of the sheath tube 10 is preferably in the range of 4F-30F to adapt to different interventional needs. The inner cavity of the sheath tube 10 is designed to accommodate at least one superselective catheter 1, and preferably can accommodate multiple superselective catheters 1 so as to simultaneously treat multiple branch blood vessels.
根据上述方案，本发明的多向辅助定位超选鞘管套件，侧孔11可通过激光切割、冲压或切磨等多种加工工艺制成，简化了器械的制造过程，降低了生产成本。多向辅助定位超选鞘管套件可以与市面上常见的超选导丝和超选导管1配合使用，简化了超选导管1的选择和使用的难度。而且多个侧孔11能够同时完成多个分支血管的超选和器械导入，充分利用鞘管件10的主通道空间，简化了操作流程，保证了手术的安全性。According to the above scheme, the multi-directional auxiliary positioning superselective sheath kit of the present invention, the side hole 11 can be made by laser cutting, stamping or cutting and grinding and other processing techniques, which simplifies the manufacturing process of the instrument and reduces the production cost. The multi-directional auxiliary positioning superselective sheath kit can be used in conjunction with the common superselective guidewire and superselective catheter 1 on the market, simplifying the selection and use of the superselective catheter 1. Moreover, multiple side holes 11 can simultaneously complete the superselection and instrument introduction of multiple branch blood vessels, making full use of the main channel space of the sheath tube 10, simplifying the operation process, and ensuring the safety of the operation.
根据本发明提供的一种多向辅助定位超选鞘管套件，导向定位件具有用于导引导丝2通过的通孔24，通孔24贯穿延伸管21和导向件22；导引导丝2能够伸出导向定位件的前端，并与血管壁3接触。具体而言，当导引导丝2伸出导向定位件前端并与血管壁3接触时，它能够为整个鞘管套件提供固定和支撑的作用，有助于防止在超选过程中鞘管套件发生意外移动，从而简化了超选操作的难度，并显著减少了器械从目标血管脱出的风险。通过这种方式，本发明提供的多向辅助定位超选鞘管套件不仅能够提高操作的精确性和效率，还能增强手术的安全性，减少并发症的发生概率。According to a multi-directional auxiliary positioning superselective sheath kit provided by the present invention, the guide positioning member has a through hole 24 for the guide guide wire 2 to pass through, and the through hole 24 runs through the extension tube 21 and the guide member 22; the guide guide wire 2 can extend out of the front end of the guide positioning member and contact the blood vessel wall 3. Specifically, when the guide guide wire 2 extends out of the front end of the guide positioning member and contacts the blood vessel wall 3, it can provide fixation and support for the entire sheath kit, which helps prevent the sheath kit from accidentally moving during the superselection process, thereby simplifying the difficulty of the superselection operation and significantly reducing the risk of the instrument coming out of the target blood vessel. In this way, the multi-directional auxiliary positioning superselective sheath kit provided by the present invention can not only improve the accuracy and efficiency of the operation, but also enhance the safety of the operation and reduce the probability of complications.
本多向辅助定位超选鞘管套件可适用于主动脉弓、胸腹主动脉区域等。多个侧孔11与可移动的导向定位件配合使用，可以同时完成多个分支血管的操作。多侧孔11的设计使得在同一时间内可以在不同位置下入多个器械，有效解决了手术中因单孔通道多次更换器械而带来的问题。多向辅助定位超选鞘管套件在实际使用中的主要步骤如下：This multi-directional assisted positioning superselective sheath kit can be applied to the aortic arch, thoracic and abdominal aorta areas, etc. Multiple side holes 11 are used in conjunction with a movable guide positioning piece to simultaneously complete operations on multiple branch vessels. The design of multiple side holes 11 allows multiple instruments to be inserted at different locations at the same time, effectively solving the problem of multiple instrument changes in a single-hole channel during surgery. The main steps of the multi-directional assisted positioning superselective sheath kit in actual use are as follows:
如图7所示，首先通过经皮穿刺的方式，在主动脉中置入导引导丝2直至病变部位。导引导丝2与血管壁3的接触形成了对鞘管套件的固定和约束，有助于防止在超选分支过程中鞘管套件的移位，同时也降低了超选成功后导丝或导管脱出的风险。As shown in Fig. 7, firstly, a guide wire 2 is inserted into the aorta until it reaches the lesion site by percutaneous puncture. The contact between the guide wire 2 and the vessel wall 3 forms a fixation and constraint on the sheath kit, which helps to prevent the displacement of the sheath kit during the superselection of branches, and also reduces the risk of the guide wire or catheter coming out after the superselection is successful.
沿着导引导丝2置入鞘管套件，其中导引导丝2通过导向定位件的通孔24，导向件22起到导向作用，使鞘管件10更容易进入穿刺口。The sheath tube kit is inserted along the guide wire 2, wherein the guide wire 2 passes through the through hole 24 of the guide positioning member, and the guide member 22 plays a guiding role, so that the sheath tube member 10 can enter the puncture port more easily.
如图8所示，将鞘管套件的一个侧孔11对准目标分支血管，然后后撤移动导向定位件，使导向件22的凹弧形导向面23对准该侧孔11。沿鞘管件10置入计划超选分支的超选器械（如超选导丝、超选导管1、可调弯鞘管等），超选器械的头端在导向面23的导引下穿过侧孔11。如图9所示，后续可以采用相同的方法通过鞘管件10的另一个侧孔11超选第二个分支血管。As shown in FIG8 , one side hole 11 of the sheath set is aligned with the target branch vessel, and then the guide positioning member is moved backward to align the concave arc-shaped guide surface 23 of the guide member 22 with the side hole 11. The superselection device (such as a superselection guidewire, a superselection catheter 1, an adjustable curved sheath tube, etc.) of the planned superselection branch is placed along the sheath member 10, and the head end of the superselection device passes through the side hole 11 under the guidance of the guide surface 23. As shown in FIG9 , the same method can be used to superselect the second branch vessel through another side hole 11 of the sheath member 10.
如图10所示，超选成功后，可以置入相应的治疗器械，如球囊、支架等。As shown in FIG10 , after superselection is successful, corresponding treatment devices, such as balloons, stents, etc., can be inserted.
通过上述步骤，本发明提供的多向辅助定位超选鞘管套件能够显著提高手术效率和安全性，尤其适用于需要同时处理多个分支血管的情况。Through the above steps, the multi-directional auxiliary positioning super-selective sheath kit provided by the present invention can significantly improve the efficiency and safety of surgery, and is particularly suitable for situations where multiple branch blood vessels need to be processed simultaneously.
如图3和图4所示，根据本发明提供的一种多向辅助定位超选鞘管套件，上述多个侧孔11可以沿圆周方向均匀分布于鞘管件10的同一轴向位置上，有利于在不同的径向上对分支血管进行超选。或者优选情况下，多个侧孔11分别位于鞘管件10的不同轴向位置，并分别朝向不同径向方向，意味着侧孔11不仅分布在不同的圆周位置上，而且在轴向上也有所差异，可以更好地适应复杂血管网络的需要，尤其是在处理位于不同深度或高度的分支血管时更为有效。As shown in Fig. 3 and Fig. 4, according to a multi-directional auxiliary positioning superselection sheath kit provided by the present invention, the above-mentioned multiple side holes 11 can be evenly distributed in the same axial position of the sheath tube 10 along the circumferential direction, which is conducive to superselection of branch vessels in different radial directions. Or in a preferred case, the multiple side holes 11 are respectively located at different axial positions of the sheath tube 10 and face different radial directions, which means that the side holes 11 are not only distributed at different circumferential positions, but also differ in the axial direction, which can better meet the needs of complex vascular networks, especially when dealing with branch vessels at different depths or heights. More effective.
根据本发明提供的一种多向辅助定位超选鞘管套件，导向件22的外形优选呈锥形，连接于延伸管21的一端为导向件22的大头端，以便于设置前文记载的导向面23。导向件22的大头端的外径小于等于鞘管件10的内径，以确保导向件22能够顺畅地在鞘管件10的内腔中移动。当鞘管套件被置入患者体内时，导向件22的部分可以伸出主通道，从而在鞘管件10的前端起到导向作用，帮助鞘管件10更容易地到达目标位置。According to a multi-directional auxiliary positioning superselective sheath kit provided by the present invention, the guide member 22 is preferably conical in shape, and one end connected to the extension tube 21 is the large end of the guide member 22, so as to facilitate the setting of the guide surface 23 described above. The outer diameter of the large end of the guide member 22 is less than or equal to the inner diameter of the sheath member 10, so as to ensure that the guide member 22 can move smoothly in the inner cavity of the sheath member 10. When the sheath kit is placed in the patient's body, part of the guide member 22 can extend out of the main channel, thereby playing a guiding role at the front end of the sheath member 10, helping the sheath member 10 to reach the target position more easily.
根据本发明提供的一种多向辅助定位超选鞘管套件，侧孔11的内径优选大于超选器械的外径，以确保超选器械的前端能够顺畅地穿过侧孔11。如图6所示，在超选器械的至少一部分伸出侧孔11的情况下，能够通过移动导向定位件，以使导向面23在鞘管件10内压紧或放松超选导管1，以调节伸出侧孔11的超选器械的伸出角度。具体来说，当需要调节超选导管1的角度时，可以通过后撤导向定位件或调整超选导管1伸出侧孔11的长度来改变它们之间的相对位置。导向定位件的移动可以使得导向面23压向超选导管1的一侧，这样对于穿过侧孔11的超选导管1的角度就有二次调节的作用。通过这种调节机制，可以精确地控制超选导管1进入分支血管的角度，从而实现更精确的超选操作。鞘管套件可以与市面上通用的指引导管、导丝、可调弯鞘管等器械配合使用。通过上述的二次调节机制，可以简化医生选择导管的难度，缩短操作时间，提高手术效率和安全性。According to a multi-directional auxiliary positioning superselection sheath kit provided by the present invention, the inner diameter of the side hole 11 is preferably larger than the outer diameter of the superselection instrument to ensure that the front end of the superselection instrument can smoothly pass through the side hole 11. As shown in FIG6, when at least a portion of the superselection instrument extends out of the side hole 11, the guide positioning member can be moved so that the guide surface 23 can press or relax the superselection catheter 1 in the sheath member 10 to adjust the extension angle of the superselection instrument extending out of the side hole 11. Specifically, when the angle of the superselection catheter 1 needs to be adjusted, the relative position between them can be changed by withdrawing the guide positioning member or adjusting the length of the superselection catheter 1 extending out of the side hole 11. The movement of the guide positioning member can cause the guide surface 23 to press against one side of the superselection catheter 1, so that the angle of the superselection catheter 1 passing through the side hole 11 has a secondary adjustment effect. Through this adjustment mechanism, the angle of the superselection catheter 1 entering the branch blood vessel can be accurately controlled, thereby achieving a more accurate superselection operation. The sheath kit can be used in conjunction with common guide catheters, guide wires, adjustable curved sheaths and other instruments on the market. Through the above-mentioned secondary adjustment mechanism, it is possible to simplify the difficulty of the doctor in selecting the catheter, shorten the operation time, and improve the efficiency and safety of the operation.
根据本发明提供的一种多向辅助定位超选鞘管套件，在任一侧孔11的至少一侧，鞘管件10设置有第一显影标记12；导向件22设置有第二显影标记，或者导向件22整体具有可显影特性。上述显影标记可以有一个或多个，形状可以设计为环形、半圆形等多种形状，甚至带有特殊的图案或凸起以指示侧孔11的位置或方向。显影标记通常由铂、铱、钽、金、不锈钢等不透射线的金属材料制成，这些标记可以通过锻压或粘接等方式固定在鞘管件10上。其中，导向件22上设置有第二显影标记，或者导向件22整体具有可显影特性，以使其在影像设备下可见。这些显影标记同样可以采用上述提到的不透射线金属材料制作，并且可以通过类似的加工方法固定在导向件22上。导向件22本身优选由高分子材料通过注塑、磨削等工艺加工而成，并且可以在局部或整体上添加显影标记或进行显影处理。According to a multi-directional auxiliary positioning superselective sheath tube kit provided by the present invention, the sheath tube 10 is provided with a first development mark 12 on at least one side of any side hole 11; the guide member 22 is provided with a second development mark, or the guide member 22 as a whole has a development property. The above-mentioned development mark can be one or more, and the shape can be designed to be a variety of shapes such as a ring, a semicircle, or even with a special pattern or protrusion to indicate the position or direction of the side hole 11. The development mark is usually made of a radiopaque metal material such as platinum, iridium, tantalum, gold, stainless steel, etc., and these marks can be fixed on the sheath tube 10 by forging or bonding. Among them, the guide member 22 is provided with a second development mark, or the guide member 22 as a whole has a development property, so that it can be visible under the imaging device. These development marks can also be made of the above-mentioned radiopaque metal material, and can be fixed on the guide member 22 by a similar processing method. The guide member 22 itself is preferably made of a polymer material by injection molding, grinding and other processes, and a development mark can be added or developed locally or as a whole.
通过上述第一显影标记12、第二显影标记或导向件22整体显影处理，确保了在影像设备的引导下，医护人员可以清晰地识别侧孔11的位置以及导向件22的位置，从而有助于更精确地调整导向件22的位置，以实现对超选导管1的精确导向。尤其是当需要同时对多个分支血管进行超选时，显影标记可以明显提高手术的成功率。Through the overall development process of the first development mark 12, the second development mark or the guide member 22, it is ensured that under the guidance of the imaging device, the medical staff can clearly identify the position of the side hole 11 and the position of the guide member 22, thereby facilitating more accurate adjustment of the position of the guide member 22 to achieve accurate guidance of the superselective catheter 1. In particular, when multiple branch vessels need to be superselected at the same time, the development mark can significantly improve the success rate of the operation.
优选如图4所示，根据本发明提供的一种多向辅助定位超选鞘管套件，多个侧孔11按照螺旋的方式排列在鞘管件10上，使得鞘管件10能够在不同径向方向和轴向位置上提供多个超选通道。在每个侧孔11的一侧，鞘管件10上设有环形的第一显影标记12，有助于医护人员识别侧孔11的具体位置。在侧孔11的螺旋排布方式下，医护人员可以轻松地识别各个侧孔11的位置，并且可以在不同位置同时下入多个器械（如超选导丝、超选导管1等），从而实现对多个分支血管的同时超选。Preferably, as shown in FIG. 4 , according to a multi-directional auxiliary positioning superselective sheath kit provided by the present invention, a plurality of side holes 11 are arranged on the sheath member 10 in a spiral manner, so that the sheath member 10 can provide a plurality of superselective channels in different radial directions and axial positions. On one side of each side hole 11, a first annular developing mark 12 is provided on the sheath member 10 to help medical staff identify the specific position of the side hole 11. With the spiral arrangement of the side holes 11, medical staff can easily identify the position of each side hole 11, and can simultaneously insert multiple instruments (such as superselective guidewires, superselective catheters 1, etc.) at different positions, thereby achieving simultaneous superselection of multiple branch blood vessels.
另一方面，如图3和图5所示，鞘管件10和延伸管21的后端优选分别带有方向指引标记13，方向指引标记13用于辅助确定鞘管件10和导向定位件之间的相对旋转角度。方向指引标记13可以是刻度、箭头或其他形式的标识，用于指示鞘管件10和导向定位件之间的相对旋转位置。方向指引标记13可以帮助医护人员确定导向定位件相对于鞘管件10的旋转角度，从而更精确地调整导向件22的位置，确保超选导管1能够准确地进入目标分支血管。On the other hand, as shown in FIG3 and FIG5, the rear ends of the sheath tube 10 and the extension tube 21 are preferably provided with direction indicator marks 13, respectively, and the direction indicator marks 13 are used to assist in determining the relative rotation angle between the sheath tube 10 and the guide positioning member. The direction indicator marks 13 can be scales, arrows, or other forms of markings, used to indicate the relative rotation position between the sheath tube 10 and the guide positioning member. The direction indicator marks 13 can help medical personnel determine the rotation angle of the guide positioning member relative to the sheath tube 10, thereby more accurately adjusting the position of the guide member 22, and ensuring that the superselective catheter 1 can accurately enter the target branch vessel.
根据本发明提供的一种多向辅助定位超选鞘管套件，延伸管21的后端还可以设置有多个距离标记带25。如图5所示，该多个距离标记带25沿延伸管21的长度方向均匀间隔分布，以用于辅助判断导向定位件和鞘管件10之间的相对轴向位置。距离标记带25可以帮助医护人员判断导向定位件相对于鞘管件10的轴向位置，从而更精确地调整导向定位件的位置。According to a multi-directional auxiliary positioning superselective sheath kit provided by the present invention, a plurality of distance marking bands 25 may also be provided at the rear end of the extension tube 21. As shown in FIG5 , the plurality of distance marking bands 25 are evenly spaced along the length direction of the extension tube 21 to assist in determining the relative axial position between the guide positioning member and the sheath member 10. The distance marking bands 25 can help medical personnel determine the axial position of the guide positioning member relative to the sheath member 10, thereby more accurately adjusting the position of the guide positioning member.
根据本发明提供的一种多向辅助定位超选鞘管套件，包括管座组件，管座组件包括连接器31，以及设置于连接器31和鞘管件10的后端之间的止血阀32；连接器31具有分叉的形状，导向定位件的后端操作结构通过其中一个连接器31的分叉接口33延伸至连接器31的外部。具体来说，连接器31具有分叉的形状，例如Y型连接器31，这种设计允许导向定位件的后端操作结构通过其中一个连接器31的分叉接口33延伸至连接器31的外部，以便医护人员可以轻松地操纵导向定位件。除了用于导向定位件的分叉接口33外，连接器31的其余分叉接口33可用于下入超选器械，如超选导丝、超选导管1等。A multi-directional auxiliary positioning superselective sheath kit provided according to the present invention includes a tube seat assembly, the tube seat assembly includes a connector 31, and a hemostatic valve 32 arranged between the connector 31 and the rear end of the sheath tube 10; the connector 31 has a forked shape, and the rear end operating structure of the guide positioning member extends to the outside of the connector 31 through a forked interface 33 of one of the connectors 31. Specifically, the connector 31 has a forked shape, such as a Y-type connector 31. This design allows the rear end operating structure of the guide positioning member to extend to the outside of the connector 31 through a forked interface 33 of one of the connectors 31, so that medical staff can easily manipulate the guide positioning member. In addition to the forked interface 33 for the guide positioning member, the remaining forked interfaces 33 of the connector 31 can be used to insert superselective instruments, such as superselective guidewires, superselective catheters 1, etc.
本发明中的上述鞘管件10可以是单层导管，也可以是多层复合管。优选地，鞘管件10采用多层复合管结构。根据本发明提供的一种多向辅助定位超选鞘管套件，鞘管件10为多层复合管。该多层复合管优选包括PTFE内层、304不锈钢扁丝材质编织成的编织网中间层、以及尼龙材质挤塑成型的尼龙外层。其中，作为鞘管件10的最内层，PTFE（聚四氟乙烯）具有良好的生物相容性和耐化学腐蚀性能，同时还具有较低的摩擦系数，有助于器械顺畅通过。作为中间层，304不锈钢扁丝编织网提供必要的结构强度和支撑，确保鞘管件10在使用过程中的稳定性和耐用性。作为最外层，尼龙材质具有良好的柔韧性和耐磨性，可以保护鞘管件10免受外部损伤，并且有助于鞘管件10在血管内的顺畅推进。多层结构的选择考虑到了生物相容性、机械强度和操作流畅性的平衡，为医生提供了更好的操作体验。The sheath tube 10 in the present invention can be a single-layer catheter or a multi-layer composite tube. Preferably, the sheath tube 10 adopts a multi-layer composite tube structure. According to a multi-directional auxiliary positioning super-selective sheath tube kit provided by the present invention, the sheath tube 10 is a multi-layer composite tube. The multi-layer composite tube preferably includes a PTFE inner layer, a woven mesh middle layer woven from 304 stainless steel flat wire material, and a nylon outer layer extruded from nylon material. Among them, as the innermost layer of the sheath tube 10, PTFE (polytetrafluoroethylene) has good biocompatibility and chemical corrosion resistance, and also has a low friction coefficient, which helps the instrument to pass smoothly. As the middle layer, the 304 stainless steel flat wire braided mesh provides the necessary structural strength and support to ensure the stability and durability of the sheath tube 10 during use. As the outermost layer, the nylon material has good flexibility and wear resistance, which can protect the sheath tube 10 from external damage and help the sheath tube 10 to be smoothly advanced in the blood vessel. The selection of the multi-layer structure takes into account the balance of biocompatibility, mechanical strength and operational fluency, providing doctors with a better operating experience.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“方式”、“具体方式”、或“一些方式”等的描述意指结合该实施例或方式描述的具体特征、结构、材料或者特点包含于本发明实施例的至少一个实施例或方式中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或方式。而且，描述的具体特征、结构、材料或者特点可以在任实施例或方式中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或方式以及不同实施例或方式的特征进行结合和组合。In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any embodiment or mode in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes and the features of the different embodiments or modes described in this specification without contradiction.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：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；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411275572.0ACN118787838B (en) | 2024-09-12 | 2024-09-12 | Multi-directional assisted positioning super-selective sheath kit |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411275572.0ACN118787838B (en) | 2024-09-12 | 2024-09-12 | Multi-directional assisted positioning super-selective sheath kit |
| Publication Number | Publication Date |
|---|---|
| CN118787838Atrue CN118787838A (en) | 2024-10-18 |
| CN118787838B CN118787838B (en) | 2025-01-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411275572.0AActiveCN118787838B (en) | 2024-09-12 | 2024-09-12 | Multi-directional assisted positioning super-selective sheath kit |
| Country | Link |
|---|---|
| CN (1) | CN118787838B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118987454A (en)* | 2024-10-24 | 2024-11-22 | 北京华脉泰科医疗器械股份有限公司 | Sheath tube assembly and interventional operation sheath tube assembly |
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| CN115297921A (en)* | 2019-12-09 | 2022-11-04 | 克利夫兰临床基金会 | Apparatus and method for using fluid flow devices |
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| CN118987454A (en)* | 2024-10-24 | 2024-11-22 | 北京华脉泰科医疗器械股份有限公司 | Sheath tube assembly and interventional operation sheath tube assembly |
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| CN118787838B (en) | 2025-01-03 |
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