CN211325378U - A stone extraction basket with a threaded guide head - Google Patents
A stone extraction basket with a threaded guide headDownload PDFInfo
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- CN211325378U CN211325378UCN201922210523.XUCN201922210523UCN211325378UCN 211325378 UCN211325378 UCN 211325378UCN 201922210523 UCN201922210523 UCN 201922210523UCN 211325378 UCN211325378 UCN 211325378U
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本实用新型涉及医疗器具领域，尤其涉及一种带有螺纹导引头的取石网篮。The utility model relates to the field of medical appliances, in particular to a stone extraction net basket with a threaded guide head.
背景技术Background technique
结石指人体导管腔中或腔性器官，如肾脏、输尿管、胆囊或膀胱等的腔中形成的固体块状物，结石常引发患者出现血尿、胆绞痛等症状。目前对结石的诊断和治疗技术已经很成熟，为了免受病痛困扰，必要时需要进行手术治疗，目前常用的也是公认的一种手术为取石网篮取石手术，其是一种安全可靠的微创治疗方法。Stones refer to solid lumps formed in the cavity of human catheters or luminal organs, such as kidneys, ureters, gallbladder or bladder. Stones often cause symptoms such as hematuria and biliary colic in patients. At present, the diagnosis and treatment technology for stones is very mature. In order to avoid the trouble of pain, surgical treatment is necessary when necessary. At present, a commonly used and recognized operation is the stone extraction with mesh basket, which is a safe and reliable minimally invasive operation. treatment method.
现有技术的取石网篮中，其网篮通常由数根导丝周向等距分布构成，手术时将网篮移动到结石所在的位置，利用网篮上相邻导丝的间隙将结石套入，然后将结石取出。当然，不同的结石取出的方法也有差异；例如，在遇到粒径较大且质地较脆的结石时，需要先碎石再取出，通常由网篮前端的导引头对结石进行穿插，从而使结石碎裂。但现有技术中该取石网篮存在以下缺陷：对于粒径较大且质地较脆的结石进行碎石时，普通的导引头直接穿插的方式不易将结石穿透并碎裂，反而容易推动结石，而粒径较大的结石被推动时还会刮伤患者胆管等内壁。Among the stone extraction baskets in the prior art, the baskets are usually composed of several guide wires that are equally spaced in the circumferential direction. During the operation, the baskets are moved to the position where the stones are located, and the stones are covered by the gaps between the adjacent guide wires on the baskets. enter, and then remove the stone. Of course, different methods of stone extraction are also different; for example, when encountering a stone with a larger particle size and a brittle texture, it is necessary to crush the stone before taking it out. Broken stones. But in the prior art, this stone-removing basket has the following defects: when the stone with larger particle size and brittle texture is crushed, it is not easy to penetrate and fragment the stone by the direct insertion of the common guide head, and it is easy to push Stones with larger particle size will also scratch the inner wall of the patient's bile duct when pushed.
实用新型内容Utility model content
本实用新型的目的是提供一种带有螺纹导引头的取石网篮，旨在解决现有技术中，在对粒径较大且质地较脆的结石进行破碎并取出时，网篮的导引头不易对结石进行碎石的问题。The purpose of the utility model is to provide a stone-removing mesh basket with a threaded guide head, which aims to solve the problem of the guide of the mesh basket when crushing and taking out the stones with larger particle size and brittle texture in the prior art. The problem that the guide is not easy to crush the stone.
本实用新型提供一种带有螺纹导引头的取石网篮，包括手柄、固定在手柄前端的外管以及设置在外管内的内管，所述内管内设置有导杆，所述导杆的前端连接有网篮，所述手柄上设置有用于驱使导杆旋转的驱动件；所述网篮前端设置有导引头，所述导引头的外壁上设有螺纹；所述手柄上设置有连接于内管后端的滑动开关。The utility model provides a stone extraction mesh basket with a threaded guide head, which comprises a handle, an outer pipe fixed at the front end of the handle, and an inner pipe arranged in the outer pipe, wherein a guide rod is arranged in the inner pipe, and the front end of the guide rod A mesh basket is connected, and the handle is provided with a driving member for driving the guide rod to rotate; the front end of the mesh basket is provided with a guide head, and the outer wall of the guide head is provided with threads; the handle is provided with a connection Slide switch at the rear end of the inner tube.
进一步的，所述导引头呈圆柱体状，所述导引头的前端面呈光滑曲面。Further, the guide head is cylindrical, and the front end surface of the guide head is a smooth curved surface.
进一步的，所述导引头的螺距为导引头外直径的10％-20％。Further, the pitch of the guide head is 10%-20% of the outer diameter of the guide head.
进一步的，所述导引头的外直径为内直径的1.1-1.3倍。Further, the outer diameter of the guide head is 1.1-1.3 times the inner diameter.
进一步的，所述导引头的螺纹牙顶为曲面。Further, the thread crest of the guide head is a curved surface.
进一步的，所述手柄内设置有螺纹套筒，所述导杆螺纹连接于螺纹套筒内壁。Further, a threaded sleeve is arranged in the handle, and the guide rod is threadedly connected to the inner wall of the threaded sleeve.
进一步的，所述驱动件包括一齿轮传动组，所述齿轮传动组连接于所述导杆的后端。Further, the driving member includes a gear transmission group, and the gear transmission group is connected to the rear end of the guide rod.
进一步的，所述齿轮传动组包括一第一锥形齿轮和与之啮合的第二锥形齿轮，所述第二锥形齿轮与所述导杆螺纹连接。Further, the gear transmission group includes a first bevel gear and a second bevel gear meshed with the second bevel gear, and the second bevel gear is threadedly connected to the guide rod.
进一步的，所述手柄上设置有转动开关，所述转动开关连接于所述第一锥形齿轮。Further, a rotary switch is provided on the handle, and the rotary switch is connected to the first bevel gear.
本实用新型实施例公开了一种带有螺纹导引头的取石网篮，包括手柄、固定在手柄前端的外管以及设置在外管内的内管，所述内管内设置有导杆，所述导杆的前端连接有网篮，所述手柄上设置有用于驱使导杆旋转的驱动件；所述网篮前端设置有导引头，所述导引头的外壁上设有螺纹。本实用新型实施例在网篮前端的导引头外壁设置了螺纹，通过驱动件驱使导杆旋转，导杆连动导引头旋转并穿过结石，导引头外壁的螺纹使其在旋转时更容易穿过结石，并使得结石碎裂，从而方便网篮套取结石。The embodiment of the utility model discloses a stone extraction mesh basket with a threaded guide head, which comprises a handle, an outer tube fixed at the front end of the handle, and an inner tube arranged in the outer tube, wherein a guide rod is arranged in the inner tube, and the guide The front end of the rod is connected with a mesh basket, and the handle is provided with a driving member for driving the guide rod to rotate; the front end of the mesh basket is provided with a guide head, and the outer wall of the guide head is provided with threads. In the embodiment of the utility model, threads are arranged on the outer wall of the guide head at the front end of the basket, the guide rod is driven to rotate by the driving element, the guide rod rotates with the guide head and passes through the stone, and the thread on the outer wall of the guide head makes it rotate when rotating. It is easier to pass through the stone and break the stone, thus facilitating the retrieval of the stone by the basket.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本实用新型的一些实施例，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 illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.
图1为本实用新型实施例提供的取石网篮收拢时的剖面示意图；Fig. 1 is the sectional schematic diagram when the stone-removing net basket provided by the embodiment of the present utility model is folded;
图2为本实用新型实施例提供的取石网篮打开时的剖面示意图；Fig. 2 is the cross-sectional schematic diagram of the stone-removing basket provided by the embodiment of the present utility model when it is opened;
图3为图2中A的局部放大结构示意图。FIG. 3 is a partial enlarged structural schematic diagram of A in FIG. 2 .
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，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，都属于本实用新型保护的范围。The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, 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 work fall within the protection scope of the present invention.
应当理解，当在本说明书和所附权利要求书中使用时，术语“包括”和“包含”指示所描述特征、整体、步骤、操作、元素和/或组件的存在，但并不排除一个或多个其它特征、整体、步骤、操作、元素、组件和/或其集合的存在或添加。It is to be understood that, when used in this specification and the appended claims, the terms "comprising" and "comprising" indicate the presence of the described features, integers, steps, operations, elements and/or components, but do not exclude one or The presence or addition of a number of other features, integers, steps, operations, elements, components, and/or sets thereof.
还应当理解，在此本实用新型说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本实用新型。如在本实用新型说明书和所附权利要求书中所使用的那样，除非上下文清楚地指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural unless the context clearly dictates otherwise.
还应当进一步理解，在本实用新型说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。It should also be further understood that, as used in this specification and the appended claims, the term "and/or" refers to any and all possible combinations of one or more of the associated listed items, and including these combination.
为了方便说明，本实用新型说明书对技术特征的位置描述时，使用“前端”和“后端”来描述，此描述均以操作者为参考，前端是指在使用本实用新型产品时远离操作者的一端，后端是指靠近操作者的一端。For the convenience of description, when describing the position of the technical features in the description of the present utility model, “front end” and “rear end” are used to describe, and the description is based on the operator. The front end refers to the distance from the operator when using the product of the present utility model the end, the rear end refers to the end close to the operator.
请参阅图1、图2和图3，本实用新型实施例提供一种带有螺纹导引头的取石网篮，包括手柄1、固定在手柄1前端的外管2以及设置在外管2内的内管3，所述内管3内设置有导杆4，所述导杆4的前端连接有网篮5，所述手柄1上设置有用于驱使导杆4旋转的驱动件；所述网篮5前端设置有导引头6，所述导引头6的外壁上设有螺纹61；所述手柄1上设置有连接于内管3后端的滑动开关12。Please refer to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of the present utility model provides a stone extraction basket with a threaded guide head, comprising a handle 1 , an outer tube 2 fixed at the front end of the handle 1 , and a The
当需要取石时，将所述导引头6移动到结石处，由驱动件驱使导杆4旋转，进而连动导引头6朝向结石内旋转，导引头6旋转的过程中，导引头6的螺纹61能够使其更容易穿过结石，从而使结石碎裂，再滑动设置在手柄1上并且连接于内管3后端的滑动开关12，驱使内管3向后滑动，使网篮5打开，从而利用网篮5套住碎裂的结石并取出。When the stone needs to be removed, the
在一实施例中，所述导引头6呈圆柱体状，所述导引头6的前端面呈光滑曲面。在取石网篮进入患者胆管等内壁直至结石位置的过程中，导引头6处在整个取石网篮的最前端，为了防止导引头6将胆管等内壁刮伤，所以将导引头6的前端面设置成光滑曲面，减少与胆管等内壁之间的摩擦，从而防止刮伤。In one embodiment, the
在一实施例中，所述导引头6的螺距为导引头6外直径的10％-20％，具体根据结石的大小、质地来进行设置。例如结石的质地较软脆，其无需导引头6过多的旋转也可穿过，则导引头6的螺距和导引头6外直径的比例可以选用为20％，反之若不易穿过结石，可将导引头6的螺距和导引头6外直径的比例选用为10％，在不同的情况选用适当螺距的导引头6，便于穿过结石即可。在另一实施例中，所述导引头6的外直径为内直径的1.1-1.3倍，在该范围下，可以提高导引头穿过结石的效率。In one embodiment, the pitch of the
在一实施例中，所述导引头6的螺纹61牙顶为曲面。导引头6的螺纹61牙顶为螺纹61的最凸出位置，也是导引头6的外直径面，在取石的过程中也会接触到患者胆管等内壁，将导引头6的螺纹61牙顶为曲面，避免刮伤胆管等内壁。In one embodiment, the crest of the
在一实施例中，所述手柄1内设置有螺纹套筒7，所述导杆4螺纹连接于螺纹套筒7内壁。由于导杆4可连动导引头6同步运动，所以导杆4的旋转尤为重要，本实施例通过设置螺纹套筒7，驱动件驱使导杆4在螺纹套筒7内旋转，可确保导杆4旋转的稳定性，导杆4旋转的同时还发生前后运动，从而连动导引头6在轴向方向上旋转并在径向方向上前后运动，更方便导引头6穿过结石。In one embodiment, the handle 1 is provided with a threaded
在一实施例中，所述驱动件包括一齿轮传动组8，所述齿轮传动组8连接于所述导杆4的后端。因为导杆4旋转滑动可以连动导引头6同步运动，所以确保导杆4稳定的旋转即可，本实施例通过齿轮传动组8驱动导杆4旋转，确保了导杆4稳定的旋转。显然也可以采用其他方式来实现导杆4的旋转，例如通过设置固定连接于导杆4轴向的转动件或者设置与导杆4外壁啮合的连动结构等等。In one embodiment, the driving member includes a
优选的，在一实施例中，所述齿轮传动组8包括一第一锥形齿轮81和与之啮合的第二锥形齿轮82，所述第二锥形齿轮82与所述导杆4螺纹连接。具体的，所述导杆4螺纹连接于螺纹套筒7以及第二锥形齿轮82，当所述第一锥形齿轮81转动时，连动所述第二锥形齿轮82转动，由于导杆4与螺纹套筒7之间的螺纹连接关系，使得导杆4发生旋转和前后运动，从而连动导引头6旋转并前后运动，便于穿过结石。Preferably, in an embodiment, the gear transmission set 8 includes a
本实施例中，所述第二锥形齿轮82前端设置有一中空套筒821，所述中空套筒821转动连接于所述螺纹套筒7的后端，可确保第二锥形齿轮82转动时的稳定性。In this embodiment, a
更优选的，在一实施例中，所述手柄1上设置有转动开关11，所述转动开关11连接于所述第一锥形齿轮81。本实施例中，所述转动开关11设置与手柄1一侧，操作者只需转动转动开关11，即可驱使第一锥形齿轮81连动第二锥形齿轮82转动，进而连动导杆4旋转并前后运动，从而实现方便简单的控制导引头6，有助于操作者进行取石手术。More preferably, in an embodiment, a
以上所述，仅为本实用新型的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应以权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent modifications or replacements should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (9)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840522A (en)* | 2019-12-11 | 2020-02-28 | 深圳大学总医院 | A stone extraction basket with a threaded guide head |
| CN113082469A (en)* | 2021-04-15 | 2021-07-09 | 深圳泰睿仕医疗科技有限公司 | Ureter sacculus expansion pipe external member |
- 2019
- 2019-12-11CNCN201922210523.XUpatent/CN211325378U/ennot_activeExpired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840522A (en)* | 2019-12-11 | 2020-02-28 | 深圳大学总医院 | A stone extraction basket with a threaded guide head |
| CN110840522B (en)* | 2019-12-11 | 2024-08-02 | 深圳大学总医院 | Stone-taking basket with threaded guide head |
| CN113082469A (en)* | 2021-04-15 | 2021-07-09 | 深圳泰睿仕医疗科技有限公司 | Ureter sacculus expansion pipe external member |
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