WO2020047877A1 - 一种支架辅助导入装置和支架导入方法 - Google Patents

一种支架辅助导入装置和支架导入方法 Download PDF

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Publication number
WO2020047877A1
WO2020047877A1 PCT/CN2018/104738 CN2018104738W WO2020047877A1 WO 2020047877 A1 WO2020047877 A1 WO 2020047877A1 CN 2018104738 W CN2018104738 W CN 2018104738W WO 2020047877 A1 WO2020047877 A1 WO 2020047877A1
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Prior art keywords
stent
insert
tube
cavity
introduction device
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PCT/CN2018/104738
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English (en)
French (fr)
Inventor
郑忠伟
严航
Original Assignee
上海医立泰生物科技有限公司
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Application filed by 上海医立泰生物科技有限公司 filed Critical 上海医立泰生物科技有限公司
Priority to PCT/CN2018/104738 priority Critical patent/WO2020047877A1/zh
Publication of WO2020047877A1 publication Critical patent/WO2020047877A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/97—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the outer sleeve being splittable

Definitions

  • the invention relates to the field of medical instruments, and in particular, to a stent-assisted introduction device and a stent introduction method.
  • the human esophagus becomes cancerous, it will block the esophagus and cause the patient to swallow food and die of hunger.
  • the prior art uses an esophageal stent to place the esophagus on the esophageal lesion to open the esophagus and enlarge the diseased esophagus The diameter of the lumen of the site to facilitate the passage of food.
  • the esophageal stent is delivered to the patient's site for placement through a stent delivery device.
  • the self-expanding stent needs to be placed in the stent conveyor with the aid of a specific tool or takes a long time. Once it is placed, it is no longer easy to take out. In this way, if it needs to be transported for a long distance or waited for a long time, the self-expanding The stent is always placed in the stent conveyor. Long-term placement will affect the expansion and expansion force of the stent, and it is not easy to quickly restore natural tension, which affects the effect of surgery. Therefore, it is necessary to design an easy-to-use introduction tool to assist the stent in the stent conveyor at any time to avoid the above-mentioned effects.
  • the invention discloses a stent auxiliary introduction device, which is used for placing a stent in a stent cavity of a stent conveyor.
  • the stent includes a hollow stent receiving tube which is hollow at both ends, a stent insert fixed at the rear end of the stent receiving tube, and a matching bracket.
  • the stent pusher of the insert has a hollow inner cavity.
  • the stent pusher includes a loading joint and a pushing tube connected in front of the loading joint.
  • the outer diameter of the pushing tube is equal to the minimum inner diameter of the inner channel of the stent insert.
  • the stent insert is a hollow conical member whose inner diameter gradually increases from front to back.
  • the length of the stent-receiving tube is greater than the length of the stent.
  • the stent receiving tube is a transparent tube body whose inner diameter gradually decreases from back to front, and the inner diameter of the front end thereof is matched with the inner diameter of the stent cavity of the stent conveyor.
  • the stent receiving tube is a transparent tube body with an equal inner diameter, and the inner diameter of the stent receiving tube is matched with the inner diameter of the stent cavity of the stent conveyor.
  • the bracket insert has a stepped rear end
  • the loading joint has a concave cover fitted with the stepped rear end.
  • the stepped rear end is provided with an external thread
  • the concave cover is provided with an internal thread engaged with the external thread. The rear end can be embedded in the concave cover to fix the bracket insert and the bracket pusher.
  • a non-slip structure is provided on the outer peripheral surface of the loading joint.
  • the anti-slip structure is a plurality of axial protrusions arranged in parallel on an outer wall of the loading joint.
  • the bracket insert includes a first connection portion and a second connection portion from front to rear, a front end of the first connection portion fixes the bracket receiving tube, a rear end of the second connection portion fixes the bracket pusher, and a rear portion of the first connection portion
  • the inner wall of the end is provided with an internal thread
  • the outer wall of the front end of the second connection portion is provided with an external thread.
  • the first connection portion and the second connection portion are fixedly connected by the internal and external threads that are engaged.
  • the invention also discloses a stent introduction method using the stent-assisted introduction device as described above, including the following steps: loading the stent from the rear end of the stent insert into its internal cavity; controlling the loading joint to push the push tube from backward The stent is pushed into the stent accommodating cavity before being inserted into the inner cavity channel of the stent insert; the stent accommodating tube is docked with the stent cavity of the stent conveyor, and the stent accommodating tube is pulled out so that the stent is placed in the stent cavity of the stent conveyor.
  • the stent-assisted introduction device and the stent introduction method according to the present invention avoid the need for the stent to be placed in the stent pushing device for a long time in advance in the prior art in scenarios such as long-distance transportation, which causes the stent to deform and expand.
  • the present invention can place the stent in the stent-assisted introduction device before surgery, and then use the stent-assisted introduction device to quickly place the stent in the stent pusher, and the short-term compression deformation will not damage the expansion and expansion force of the stent. It is very simple and convenient to use and has high practical value.
  • FIG. 1 is a side view of a stent-assisted introduction device disclosed in a first embodiment of the present invention
  • FIG. 2 is a schematic diagram of the overall structure of a stent pusher disclosed in the first and second embodiments of the present invention
  • FIG. 3 is an overall assembly diagram of a stent-assisted introduction device disclosed in the first embodiment of the present invention
  • FIG. 4 is a side view of a stent-assisted introduction device disclosed in a second embodiment of the present invention.
  • FIG. 5 is an overall assembly diagram of a stent-assisted introduction device disclosed in a second embodiment of the present invention.
  • FIG. 6 is a flowchart of a stent introduction method disclosed in a third embodiment of the present invention.
  • a first embodiment of the present invention discloses a stent-assisted introduction device 100 for placing a stent in a stent cavity of a stent conveyor, which includes a stent receiving tube 1 which is hollow and is conductive at both ends.
  • a stent insert 2 at the rear end of the stent receiving tube and a stent pusher 3 that cooperates with the stent insert.
  • the stent insert 2 has a hollow internal cavity 20, as shown in FIG. 2.
  • the stent pusher 3 includes a loading joint 31 and a connection between The push tube 32 in front of the loading connector, the outer diameter of the push tube 32 is equal to the minimum inner diameter of the internal cavity 20 of the stent insert.
  • the push tube 32 can be tight.
  • the inner wall where the inner diameter of the stent insert is the smallest is inserted into the stent receiving tube 1.
  • the stent-assisted introduction device 100 disclosed in the first embodiment of the present invention only needs to place the stent in the stent receiving tube briefly before the operation, and then the stent-assisted introduction device 100 can be used to place the stent in the stent pusher.
  • the auxiliary introduction device can conveniently accommodate the stent, and on the other hand, it can be well matched with the stent conveyor.
  • the operation is very simple and convenient, so there is no need to place the stent in the stent pusher for a long time. In scenarios such as long-distance transportation, the loss of expansion and expansion force caused by the stent being placed in the stent pusher for a long time can be avoided, the use time of the stent is improved, and it has good practical value.
  • the front end of the stent insert 2 is fixed to the rear end of the stent receiving tube 1, and the front end of the inner cavity 20 is sleeved on the outer periphery of the rear end of the stent receiving tube 1.
  • the fixing method may be welding, bonding, Heat shrink or interference fit.
  • the inner diameter of the inner cavity channel 20 of the stent insert 2 according to the first embodiment of the present invention may gradually increase from front to back, that is, the inner diameter of the rear end of the inner cavity channel 20 is larger, which is convenient for stent removal from the inner cavity during use.
  • the rear end of the channel 20 is inserted into the inside of the stent insert, which is more convenient to use.
  • the entirety of the stent insert 2 can be a hollow conical member, that is, the outer diameter of the stent insert 2 gradually increases from front to back. It can be adapted to the size of its inner diameter, on the other hand, it can also increase the stress intensity between the stent pusher 1 and the stent receiving tube 3, and the overall appearance is also very beautiful.
  • the stent insert 2 includes a first connection portion 21 and a second connection portion 22 from front to back.
  • the front end of the first connection portion 21 fixes the bracket accommodation tube 1 and the second connection portion.
  • the rear end fixing support pusher 3 of 22 the inner wall of the rear end of the first connection portion 21 is provided with an internal thread 210, the outer wall of the front end of the second connection portion 22 is provided with an external thread 220, the first connection portion 21 and the second connection portion 22
  • the internal thread 210 and the external thread 220 are fixedly connected with each other.
  • the two parts are connected to form the bracket insert 2, which is more convenient for processing and increases the convenience of product assembly.
  • the length of the stent-receiving tube 3 is greater than the length of the stent, so that after the stent is integrally accommodated in the stent-receiving tube 3, a section at the front end of the stent-receiving tube 3 can be reserved for pushing with the stent
  • the connection end is first used to mate with the stent cavity, and then the stent accommodation tube is pulled out so that the stent is placed in the stent cavity.
  • the reserved connection end can enhance the convenience of operation and facilitate the rapid docking with the stent conveyor.
  • the stent-receiving tube 1 may be a transparent pipe body whose inner diameter gradually decreases from back to front. It is worth noting that at this time, the inner diameter of the front end of the stent-receiving tube 1 should be compatible with the inner diameter of the stent cavity of the stent conveyor so that the stent The transition from the stent receiving tube 1 to the stent cavity of the stent conveyor can be smoothly performed. The inner diameter of the stent receiving tube 1 gradually decreases from back to front, which can further enhance the stress intensity of the connection with the stent insert 2 and increase the aesthetic appearance. In addition, the design of the transparent tube facilitates the user to visually observe the state of the bracket inside the tube, so that it can be adjusted as soon as possible, which increases the convenience of use.
  • the bracket insert 2 has a stepped rear end 221.
  • the loading joint 31 has a concave cover that cooperates with the stepped rear end 221, and the stepped rear end 221 can be embedded.
  • the bracket insert 2 and the bracket pusher 3 are assembled by loading the concave cover of the joint 31. After assembly, the outer diameters of the two are the same, which can ensure the fixed tightness and further enhance the appearance of the product.
  • the outer peripheral surface of the loading joint 31 is further provided with a non-slip structure.
  • the anti-slip mechanism may be a plurality of axial protrusions 310 arranged in parallel on the outer wall of the loading joint 31.
  • the non-slip structure can increase the friction force, which is convenient for the operator to hold the loading joint 31 for insertion, screwing and other actions.
  • the anti-slip structure is not limited to the multiple axial protrusions 310 exemplified in this embodiment, but also other designs with multiple bumps, multiple wavy line protrusions, or unevenness. The friction force of the outer surface of the loading joint 31 can be enhanced.
  • the stent-assisted introduction device 100 disclosed in the first embodiment of the present invention can place the stent in the stent-assisted introduction device before the operation, and then use the stent-assisted introduction device to quickly place the stent in the stent pusher and briefly compress it. Deformation will not damage the expansion and expansion force of the stent, it is very simple and convenient to use, and has high practical value.
  • the first embodiment of the present invention discloses another stent-assisted introduction device 100 for placing a stent in a stent cavity of a stent conveyor, which includes a stent receiving tube 1 that is hollow and is conductive at both ends.
  • the stent insert 2 fixed at the rear end of the stent receiving tube and the stent pusher 3 cooperating with the stent insert.
  • the stent insert 2 has a hollow internal cavity 20, as shown in FIG. 2.
  • the stent pusher 3 includes a loading joint 31 and a connection.
  • the pushing tube 32 in front of the loading joint has an outer diameter equal to the minimum inner diameter of the inner channel 20 of the stent insert.
  • the pushing tube 32 may An inner wall that is in close contact with the smallest inner diameter of the stent insert is inserted into the stent receiving tube 1.
  • This embodiment is a modification of the first embodiment.
  • the stent-receiving tube 1 of this embodiment is a transparent tube body with an inner diameter from front to back, and is temporarily placed in the stent.
  • the design of the same inner diameter can ensure that the deformation of each part of the stent is consistent, so that the amount of expansion and expansion force of each part of the stent can be kept consistent, which is conducive to maintaining good subsequent use of the stent.
  • the design of the transparent tube facilitates the user to visually observe the state of the bracket inside the tube, so that it can be adjusted as soon as possible, which increases the convenience of use.
  • the front end of the stent insert 2 is fixed to the rear end of the stent receiving tube 1, and the front end of the inner cavity 20 is sleeved on the outer periphery of the rear end of the stent receiving tube 1.
  • the fixing method may be welding, bonding, Heat shrink or interference fit.
  • the inner diameter of the inner cavity channel 20 of the stent insert 2 according to the first embodiment of the present invention may gradually increase from front to back, that is, the inner diameter of the rear end of the inner cavity channel 20 is larger, which is convenient for stent removal from the inner cavity during use.
  • the rear end of the channel 20 is inserted into the inside of the stent insert, which is more convenient to use.
  • the entirety of the stent insert 2 can be a hollow conical member, that is, the outer diameter of the stent insert 2 gradually increases from front to back. It can be adapted to the size of its inner diameter, on the other hand, it can also increase the stress intensity between the stent pusher 1 and the stent receiving tube 3, and the overall appearance is also very beautiful.
  • the bracket insert 2 includes a first connection portion 21 and a second connection portion 22 from the front to the rear.
  • the front end of the first connection portion 21 fixes the bracket accommodation tube 1 and the second connection portion.
  • the rear end fixing support pusher 3 of 22 the inner wall of the rear end of the first connection portion 21 is provided with an internal thread 210, the outer wall of the front end of the second connection portion 22 is provided with an external thread 220, the first connection portion 21 and the second connection portion 22
  • the internal thread 210 and the external thread 220 are fixedly connected with each other.
  • the bracket insert 2 is formed by connecting two components, which is more convenient for processing and increases the convenience of product assembly.
  • the length of the stent receiving tube 3 is greater than the length of the stent, so that after the stent is received in the stent receiving tube 3 as a whole, a section can be reserved at the front end of the stent receiving tube 3 for pushing with the stent.
  • the connection end is first used to mate with the stent cavity, and then the stent accommodation tube is pulled out so that the stent is placed in the stent cavity.
  • the reserved connection end can enhance the convenience of operation and facilitate the rapid docking with the stent conveyor.
  • the bracket insert 2 has a stepped rear end 221.
  • the loading joint 31 has a recessed cover that cooperates with the stepped rear end 221, and the stepped rear end 221 can be embedded.
  • the bracket insert 2 and the bracket pusher 3 are assembled by loading the concave cover of the joint 31. After assembly, the outer diameters of the two are the same, which can ensure the fixed tightness and further enhance the appearance of the product.
  • the outer peripheral surface of the loading joint 31 is further provided with a non-slip structure.
  • the anti-slip mechanism may be a plurality of axial protrusions 310 arranged in parallel on the outer wall of the loading joint 31.
  • the non-slip structure can increase the friction force, which is convenient for the operator to hold the loading joint 31 for insertion, screwing and other actions.
  • the anti-slip structure is not limited to the multiple axial protrusions 310 exemplified in this embodiment, but also other designs with multiple bumps, multiple wavy line protrusions, or unevenness. The friction force of the outer surface of the loading joint 31 can be enhanced.
  • a third embodiment of the present invention discloses a stent introduction method using the above-mentioned stent-assisted introduction device, which includes the following steps:
  • Step S301 Install the stent from the rear end of the stent insert into its internal cavity
  • step S302 the loading connector is controlled to push the pushing tube forward and backward into the inner cavity channel of the stent insert, and the stent is pushed into the stent receiving cavity;
  • step S303 the stent containing tube is docked with the stent cavity of the stent conveyor, and the stent containing tube is withdrawn, so that the stent is placed in the stent cavity of the stent conveyor.
  • the operation process of the preferred embodiment is simple and convenient, and the stent can be quickly placed in the stent auxiliary introduction device, and can be easily transferred to the stent cavity of the stent conveyor for placement, without the need to place the stent in the stent for a long time in advance.
  • the loss of expansion and expansion force caused by the stent being placed in the stent pusher for a long time can be avoided, thereby improving the service life of the stent.
  • the stent-assisted introduction device and the stent introduction method provided by the present invention avoid the need for the stent to be placed in the stent pushing device for a long time in advance in scenarios such as long-distance transportation, so that the stent loses deformation.
  • the present invention can place the stent in the stent-assisted introduction device before surgery, and then use the stent-assisted introduction device to quickly place the stent in the stent pusher, and the short-term compression deformation will not damage the expansion and expansion of the stent. It is very simple and convenient to use and has high practical value.

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Abstract

一种支架辅助导入装置（100）和支架导入方法，用于将支架安放在支架输送器的支架腔中，支架辅助导入装置（100）包括中空且两端导通的支架容纳管（1）、固定在支架容纳管（1）后端的支架插入件（2）和配合支架插入件（2）的支架推送件（3），支架插入件（2）具有中空的内腔道（20），支架推送件（3）包括装载接头（31）和连接在装载接头（31）前方的推送管（32），推送管（32）的外径等于支架插入件（2）的内腔道（20）的最小内径，当装载接头（31）控制推送管（32）插入支架插入件（2）的内腔道（20）时，推送管（32）可紧贴支架插入件（2）的内径最小处的内壁插入至支架容纳管（1）中。所述支架辅助导入装置（100）和支架导入方法不需提前将支架长时间的放置在支架推送器中，可避免支架预先被长时间的放置于支架推送器中所造成的膨胀扩张力的损失，提高了支架的使用时长，具有很好的实用价值。

Description

一种支架辅助导入装置和支架导入方法 技术领域
本发明涉及医疗器械领域，特别是涉及一种支架辅助导入装置和支架导入方法。
背景技术
人体食管如果发生癌变，会将食管堵塞，造成患者不能吞咽食物而饥饿致死，为了延长患者的生命，现有技术是通过食管支架安放器在食管病变部位安放食管支架将食管撑开，扩大病变食管部位的内腔直径，以方便食物通过，通常通过支架输送器来将食管支架输送至病患部位进行安放，目前，在临床的食道介入治疗中，通常使用自膨式支架通过支架输送器和数字影像监视经人体管腔(如口、鼻等)将压缩于导管内的支架送至病变部位，然后通过预定的方式将支架释放展开，依靠支架自身的径向张力和人体管腔自身的收缩力，将支架固定在食道的病患部位，达到治疗或缓解病症的目的。
自膨式支架放置到支架输送器中需要借助特定的工具或者花费较长的时间，一旦放入便不再轻易取出，如此一来，若需要经过长距离的运输或者长时间的等待，自膨式支架便一直被放置在支架输送器中，长时间的放置会使得支架的膨胀扩张力受到影响，不易快速恢复自然张力，从而影响手术的效果。因此，需要设计一种简单易用的导入工具来辅助支架随时放入支架输送器中，以避免上述影响。
发明内容
本发明公开了一种支架辅助导入装置，用于将支架安放在支架输送器的支架腔中，包括中空且两端导通的支架容纳管、固定在支架容纳管后端的支架插入件和配合支架插入件的支架推送件，支架插入件具有中空的内腔道，支架推送件包括装载接头和连接在装载接头前方的推送管，推送管的外径等于支架插入件的内腔道的最小内径，当装载接头控制推送管插入支架插入件的内腔道时，推送管可紧贴支架插入件的内径最小处的内壁插入至支架容纳管中。
进一步地，支架插入件为内径自前向后逐渐增大的空心锥形部件。
优选地，支架容纳管的长度大于支架的长度。
进一步地，支架容纳管为内径自后向前逐渐减小的透明管体，其前端内径与支架输送器的支架腔的内径相配合。
优选地，支架容纳管为相等内径的透明管体，其内径与支架输送器的支架腔的内径相配合。
进一步地，支架插入件具有台阶状后端，装载接头具有与台阶状后端相嵌合的凹盖，台阶状后端设有外螺纹，凹盖设有与外螺纹相啮合的内螺纹，台阶状后端可嵌入凹盖内来将支架插入件和支架推送件固定装配。
优选地，装载接头外周表面设有防滑结构。
进一步地，防滑结构为设于装载接头外壁的并行排列的多条轴向凸起。
优选地，支架插入件包括自前向后的第一连接部和第二连接部，第一连接部的前端固定支架容纳管，第二连接部的后端固定支架推送件，第一连接部的后端内壁设有内螺纹，第二连接部的前端外壁设有外螺纹，第一连接部和第二连接部通过相啮合的内螺纹和外螺纹固定连接。
本发明还公开了一种应用如上所述的支架辅助导入装置的支架导入方法，包括以下步骤：将支架自支架插入件的后端装入其内腔道中；控制装载接头推动推送管自后向前插入支架插入件的内腔道，支架被推动进入支架容纳腔；将支架容纳管与支架输送器的支架腔进行对接，抽离支架容纳管，使得支架安放于支架输送器的支架腔中。
综上所述，本发明涉及的支架辅助导入装置及支架导入方法，避免了现有技术中在长距离运输等场景下，支架需要预先长时间地放置于支架推送装置中，使得支架损失形变扩张力的情形，本发明可以在手术之前将支架预先放置于支架辅助导入装置中，再利用支架辅助导入装置快速地将支架安放于支架推送器中，短暂的压缩形变不会损伤支架的膨胀扩张力，使用起来十分简捷方便，具有很高的实用价值。
为让本发明的上述内容能更明显易懂，下文特举优选实施例，并结合附图，作详细说明如下。
附图说明
下面将结合附图介绍本发明。
图1为本发明第一实施例中公开的一种支架辅助导入装置的侧视图；
图2为本发明第一和第二实施例中公开的支架推送件的整体结构示意图；
图3为本发明第一实施例中公开的支架辅助导入装置的整体装配示意图；
图4为本发明第二实施例中公开的支架辅助导入装置的侧视图；
图5为本发明第二实施例中公开的支架辅助导入装置的整体装配示意图；
图6为本发明第三实施例中公开的支架导入方法的流程图。
具体实施方式
以下由特定的具体实施例说明本发明的实施方式，本领域技术人员可由本说明书所揭示的内容轻易地了解本发明的其他优点及功效。
现在参考附图介绍本发明的示例性实施方式，本发明可以用许多不同的形式来实施，并且不局限于此处描述的实施例，提供这些实施例是为了详尽且完全地公开本发明，并且向所属技术领域的技术人员充分传达本发明的范围。对于表示在附图中的示例性实施方式中的术语并不是对本发明的限定。在附图中，相同的单元/元件使用相同的附图标记。
除非另有说明，此处使用的术语(包括科技术语)对所属技术领域的技术人员具有通常的理解含义。另外，可以理解的是，以通常使用的词典限定的术语，应当被理解为与其相关领域的语境具有一致的含义，而不应该被理解为理想化的或过于正式的意义。
第一实施例
如图1所示，本发明第一实施例公开了一种支架辅助导入装置100，用于将支架安放在支架输送器的支架腔中，包括中空且两端导通的支架容纳管1、固定在支架容纳管后端的支架插入件2和配合支架插入件的支架推送件3，支架插入件2具有中空的内腔道20，如图2所示，支架推送件3包括装载接头31和连接在装载接头前方的推送管32，推送管32的外径等于支架插入件的内腔道20的最小内径，当装载接头31控制推送管32插入支架插入件的内腔道时，推送管32可紧贴支架插入件的内径最小处的内壁插入至支架容纳管1中。
本发明第一实施例公开的支架辅助导入装置100，只需在手术前将支架短暂地放置在支架容纳管中，随即便可利用支架辅助导入装置100将支架安放在支架推送器中，由于支架辅助导入装置一方面能够便捷地将支架进行容纳，另一方面可以很好地与支架输送器进行配合对接，操作起来十分简捷方便，因此不需提前将支架长时间的放置在支架推送器中，在长距离运输等场景下，可避免支架预先长时间的放置于支架推送器中所造成的膨胀扩张力的损失，提高了支架的使用时长，具有很好的实用价值。
如图1所示，支架插入件2的前端固定于支架容纳管1的后端，内腔道20的前端套接于支架容纳管1的后端外周，其固定方式可以是焊接、粘接、热缩或者过盈配合等。优选地，本发明第一实施例的支架插入件2的内腔道20的内径可以自前向后逐渐增大，即内腔道20的后端内径较大，方便在使用时将支架自内腔道20的后端塞入支架插入件内部，使用起来较为便捷；另外，支架插入件2的整体可以为空心的锥形部件，即支架插入件2的外径自前向后逐渐增大，一方面能够与其内径的尺寸相适应，另一方面也可以增强支架推送件1和支架容纳管3之间的应力强度，整体外形也十分美观。
如图3所示，本优选实施例中，支架插入件2包括自前向后的第一连接部21和第二连接部22，第一连接部21的前端固定支架容纳管1，第二连接部22的后端固定支架推送件3，第一连接部21的后端内壁设有内螺纹210，第二连接部22的前端外壁设有外螺纹220，第一连接部21和第二连接部22通过相啮合的内螺纹210和外螺纹220固定连接。由两个部件相连接来构成支架插入件2，更便于加工，且增加了产品装配的便捷性。
本发明第一实施例中，支架容纳管3的长度大于支架的长度，以便于将支架整体地容纳于支架容纳管3中之后，还能够在支架容纳管3的前端预留出一段与支架推送器相对接的连接端，当利用支架辅助导入装置100将支架安放在支架输送器的支架腔的过程中，先利用该连接端与支架腔进行配合对接，再抽离支架容纳管使得支架安放于支架输送器的支架腔中，该预留的连接端能够增强操作的便利性，方便快速与支架输送器进行配合对接。
优选地支架容纳管1可以为内径自后向前逐渐减小的透明管体，值得注意的是，此时支架容纳管1的前端内径应与支架输送器的支架腔的内径能够配合，以便支架能够顺利地自支架容纳管1中过渡至支架输送器的支架腔中。支架容纳管1的内径自后向前逐渐减小，可以进一步增强与支架插入件2相连接的应力强度，且增加了外观的美感。另外，透明管体的设计便于使用者直观地观察到支架在管体内部的状态，从而可以尽快的进行调整，增加了使用便捷度。
进一步地，如图3所示，支架插入件2具有台阶状后端221，如图2所示，装载接头31具有与台阶状后端221相配合的凹盖，该台阶状后端221可以嵌入装载接头31的凹盖内来将支架插入件2和支架推送件3进行装配，装配后二者的外径相同，能够保证固定的紧固性的同时，进一步美化产品的外形。
本优选实施例中，装载接头31的外周表面还设有防滑结构，具体地，如图2所示，该防滑机构可以为设于装载接头31外壁的并行排列的多条轴向凸起310，防滑结构能够增加摩擦力，便于操作者手持装载接头31进行插入、拧转等动作。本领域技术人员可以理 解的是，防滑结构不仅仅限于本实施例中所例举的多条轴向凸起310，还可以是多个凸点、多条波浪线凸起或凹凸不平的其他设计，能增强装载接头31外表面的摩擦力即可。
本发明第一实施例所公开的支架辅助导入装置100，可以在手术之前将支架预先放置于支架辅助导入装置中，再利用支架辅助导入装置快速地将支架安放于支架推送器中，短暂的压缩形变不会损伤支架的膨胀扩张力，使用起来十分简捷方便，具有很高的实用价值。
第二实施例
如图4所示，本发明第一实施例公开了另一种支架辅助导入装置100，用于将支架安放在支架输送器的支架腔中，包括中空且两端导通的支架容纳管1、固定在支架容纳管后端的支架插入件2和配合支架插入件的支架推送件3，支架插入件2具有中空的内腔道20，如图2所示，支架推送件3包括装载接头31和连接在装载接头前方的推送管32，推送管32的外径等于支架插入件的内腔道20的最小内径，当装载接头31控制推送管32插入支架插入件的内腔道时，推送管32可紧贴支架插入件的内径最小处的内壁插入至支架容纳管1中。
本实施例是第一实施例的变形例，本实施例与第一实施例的不同之处在于，本实施例的支架容纳管1为自前向后等内径的透明管体，在支架短暂置入的过程中，同等内径的设计可以保证支架各个部分的形变一致，从而使支架各个部分的膨胀扩张力的变化量能够保持一致，有利于维持支架良好的后续使用性。另外，透明管体的设计便于使用者直观地观察到支架在管体内部的状态，从而可以尽快的进行调整，增加了使用便捷度。
如图2所示，支架插入件2的前端固定于支架容纳管1的后端，内腔道20的前端套接于支架容纳管1的后端外周，其固定方式可以是焊接、粘接、热缩或者过盈配合等。优选地，本发明第一实施例的支架插入件2的内腔道20的内径可以自前向后逐渐增大，即内腔道20的后端内径较大，方便在使用时将支架自内腔道20的后端塞入支架插入件内部，使用起来较为便捷；另外，支架插入件2的整体可以为空心的锥形部件，即支架插入件2的外径自前向后逐渐增大，一方面能够与其内径的尺寸相适应，另一方面也可以增强支架推送件1和支架容纳管3之间的应力强度，整体外形也十分美观。
如图5所示，本优选实施例中，支架插入件2包括自前向后的第一连接部21和第二连接部22，第一连接部21的前端固定支架容纳管1，第二连接部22的后端固定支架推送件3，第一连接部21的后端内壁设有内螺纹210，第二连接部22的前端外壁设有外螺纹 220，第一连接部21和第二连接部22通过相啮合的内螺纹210和外螺纹220固定连接。由两个部件相连接构成支架插入件2，更便于加工，增加了产品装配的便捷性。
本发明第二实施例中，支架容纳管3的长度大于支架的长度，以便于将支架整体地容纳于支架容纳管3中之后，还能够在支架容纳管3的前端预留出一段与支架推送器相对接的连接端，当利用支架辅助导入装置100将支架安放在支架输送器的支架腔的过程中，先利用该连接端与支架腔进行配合对接，再抽离支架容纳管使得支架安放于支架输送器的支架腔中，该预留的连接端能够增强操作的便利性，方便快速与支架输送器进行配合对接。
进一步地，如图5所示，支架插入件2具有台阶状后端221，如图2所示，装载接头31具有与台阶状后端221相配合的凹盖，该台阶状后端221可以嵌入装载接头31的凹盖内来将支架插入件2和支架推送件3进行装配，装配后二者的外径相同，能够保证固定的紧固性的同时，进一步美化产品的外形。
本优选实施例中，装载接头31的外周表面还设有防滑结构，具体地，如图2所示，该防滑机构可以为设于装载接头31外壁的并行排列的多条轴向凸起310，防滑结构能够增加摩擦力，便于操作者手持装载接头31进行插入、拧转等动作。本领域技术人员可以理解的是，防滑结构不仅仅限于本实施例中所例举的多条轴向凸起310，还可以是多个凸点、多条波浪线凸起或凹凸不平的其他设计，能增强装载接头31外表面的摩擦力即可。
第三实施例
如图6所示，本发明第三实施例公开了一种应用如上所述的支架辅助导入装置的支架导入方法，包括以下步骤：
步骤S301，将支架自支架插入件的后端装入其内腔道中；
步骤S302，控制装载接头推动推送管自后向前插入支架插入件的内腔道，支架被推动进入支架容纳腔；
步骤S303，将支架容纳管与支架输送器的支架腔进行对接，抽离支架容纳管，使得支架安放于支架输送器的支架腔中。
本优选实施例的操作过程简捷方便，能够将支架快速的置于支架辅助导入装置中，并便捷地过渡至支架输送器的支架腔中进行安放，不需提前将支架长时间的放置在支架推送器中，在长距离运输等场景下，可避免支架预先长时间的放置于支架推送器中所造成的膨胀扩张力的损失，从而提高了支架的使用寿命。
综上所述，本发明所提供的支架辅助导入装置及支架导入方法，避免了现有技术中在长距离运输等场景下，支架需要预先长时间的放置于支架推送装置中，使得支架损失形变扩张力的情形，本发明可以在手术之前将支架预先放置于支架辅助导入装置中，再利用支架辅助导入装置快速地将支架安放于支架推送器中，短暂的压缩形变不会损伤支架的膨胀扩张力，使用起来十分简捷方便，具有很高的实用价值。此外，本发明上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何本领域技术人员皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，本领域技术人员在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。

Claims (10)

  1. 一种支架辅助导入装置，用于将支架安放在支架输送器的支架腔中，其特征在于，包括中空且两端导通的支架容纳管、固定在所述支架容纳管后端的支架插入件和配合所述支架插入件的支架推送件，所述支架插入件具有中空的内腔道，所述支架推送件包括装载接头和连接在所述装载接头前方的推送管，所述推送管的外径等于所述支架插入件的内腔道的最小内径，当所述装载接头控制所述推送管插入所述支架插入件的内腔道时，所述推送管可紧贴所述支架插入件的内径最小处的内壁插入至所述支架容纳管中。
  2. 如权利要求1所述的支架辅助导入装置，其特征在于，所述支架插入件为内径自前向后逐渐增大的空心锥形部件。
  3. 如权利要求1所述的支架辅助导入装置，其特征在于，所述支架容纳管的长度大于所述支架的长度。
  4. 如权利要求1所述的支架辅助导入装置，其特征在于，所述支架容纳管为内径自后向前逐渐减小的透明管体，其前端内径与所述支架输送器的所述支架腔的内径相配合。
  5. 如权利要求1所述的支架辅助导入装置，其特征在于，所述支架容纳管为相等内径的透明管体，其内径与所述支架输送器的所述支架腔的内径相配合。
  6. 如权利要求1所述的支架辅助导入装置，其特征在于，所述支架插入件具有台阶状后端，所述装载接头具有与所述台阶状后端相嵌合的凹盖，所述台阶状后端设有外螺纹，所述凹盖设有与所述外螺纹相啮合的内螺纹，所述台阶状后端可嵌入所述凹盖内来将所述支架插入件和所述支架推送件固定装配。
  7. 如权利要求1所述的支架辅助导入装置，其特征在于，所述装载接头外周表面设有防滑结构。
  8. 如权利要求7所述的支架辅助导入装置，其特征在于，所述防滑结构为设于所述装载接头外壁的并行排列的多条轴向凸起。
  9. 如权利要求1-8中任一所述的支架辅助导入装置，其特征在于，所述支架插入件包括自前向后的第一连接部和第二连接部，所述第一连接部的前端固定所述支架容纳管，所述第二连接部的后端固定所述支架推送件，所述第一连接部的后端内壁设有内螺纹，所 述第二连接部的前端外壁设有外螺纹，所述第一连接部和所述第二连接部通过相啮合的所述内螺纹和所述外螺纹固定连接。
  10. 一种应用如权利要求1-9中任一项所述的支架辅助导入装置的支架导入方法，包括以下步骤：
    将所述支架自所述支架插入件的后端装入其内腔道中；
    控制所述装载接头推动所述推送管自后向前插入所述支架插入件的内腔道，所述支架被推动进入所述支架容纳腔；
    将所述支架容纳管与所述支架输送器的所述支架腔进行对接，抽离所述支架容纳管，使得所述支架安放于所述支架输送器的所述支架腔中。
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