WO2022262850A1 - 抗扭弯曲球囊装置 - Google Patents

抗扭弯曲球囊装置 Download PDF

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Publication number
WO2022262850A1
WO2022262850A1 PCT/CN2022/099480 CN2022099480W WO2022262850A1 WO 2022262850 A1 WO2022262850 A1 WO 2022262850A1 CN 2022099480 W CN2022099480 W CN 2022099480W WO 2022262850 A1 WO2022262850 A1 WO 2022262850A1
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Prior art keywords
balloon
curved
bending
core tube
torsion
Prior art date
Application number
PCT/CN2022/099480
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English (en)
French (fr)
Inventor
汝成韬
张智超
Original Assignee
上海科赐医疗技术有限公司
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Application filed by 上海科赐医疗技术有限公司 filed Critical 上海科赐医疗技术有限公司
Priority to EP22824322.6A priority Critical patent/EP4356846A1/en
Publication of WO2022262850A1 publication Critical patent/WO2022262850A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1002—Balloon catheters characterised by balloon shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1011—Multiple balloon catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1025—Connections between catheter tubes and inflation tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1027—Making of balloon catheters
    • A61M25/1029—Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1011—Multiple balloon catheters
    • A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable

Definitions

  • the invention relates to the field of medical instruments, in particular to an anti-twist and bending balloon device.
  • the general structure of a curved balloon is a curved balloon and an inner core tube.
  • the core tube passes through the openings at both ends of the balloon and passes through the inside of the balloon.
  • the core tube in the balloon has an opening to fill the balloon with water or air.
  • the curved balloon and the core tube are generally connected at both ends of the opening of the curved balloon, and the balloon and the core tube are connected and the balloon is kept airtight through connection techniques such as welding or bonding.
  • the part of the core tube in the middle of the balloon is generally in a free state relative to the balloon, that is, in the middle section, the positions of the balloon and the core tube are not fixed.
  • the most basic principle of the curved balloon is that the elongation of the curved outer material of the curved balloon is greater than the elongation of the inner material, thereby causing the bending of the balloon.
  • curved balloons rely on the structure of the curved balloon to cause different elongation of the inner and outer sides to cause bending. It also relies on the core tube as a support with a constant length on the inner side of the curved balloon, because the material of the core tube is different from that of the balloon.
  • the non-extensible core tube provides a constant medial length for the curved balloon.
  • a torsion-resistant bending balloon device which can enhance the torsion resistance of the bending balloon while strengthening the bending force provided by the bending balloon during bending, so that the bending balloon can be more stable in the expected manner during the bending process. bending.
  • the purpose of the present invention is to solve the defects of poor bending and twisting resistance of existing curved balloons, provide a new curved balloon device, and enhance the bending strength and torsion resistance of the curved balloon.
  • the present invention provides a torsion-resistant curved balloon device, which includes a curved balloon and a fixing strip that is not easy to twist.
  • the curved balloon is bent to one side after filling, and the curved inner side of the curved balloon
  • the said fixing bar is connected at multiple points or a whole section.
  • the fixing strip is a core tube, and the core tube has an opening to inject water or gas into the balloon.
  • the core tube is inside the curved balloon, and the two ends of the core tube and several points in the middle or a whole section are connected and fixed to the curved inner side of the curved balloon.
  • the core tube can be outside the curved balloon, and there is an opening to communicate with the balloon, and several points or a whole section of the core tube can be connected and fixed to the curved inner side of the curved balloon.
  • the fixing strip is a reinforcing rib, and the reinforcing rib is located outside the curved balloon, and a core tube is arranged inside the curved balloon, and the two ends of the core tube are sealed and connected with the curved balloon, and the core tube is provided with an opening for The balloon is filled with water or air.
  • the fixed connection between the fixing strip and the curved balloon is through welding.
  • the fixed connection between the fixing strip and the curved balloon can also be bonded with glue.
  • the fixed connection between the fixing bar and the curved balloon is a whole line connection.
  • the fixed connection between the fixing strip and the curved balloon can also be several point connections.
  • the beneficial effect of the present invention is to provide a new curved balloon device, which is to strengthen the bending force provided by the curved balloon during bending, and at the same time enhance the torsion resistance of the curved balloon, so that the curved balloon can The middle is more stable and bends as expected.
  • Fig. 1 is the schematic diagram of an embodiment of the present invention
  • Figure 2 is a schematic cross-sectional view of the middle section of the embodiment of Figure 1;
  • Fig. 3 is the schematic diagram of another embodiment of the present invention.
  • Fig. 4 is a schematic diagram of another embodiment of the present invention.
  • the torsion-resistant fixing strip is the core tube 3, which is generally made of plastic or polymer material, has certain flexibility, but does not have obvious ductility, and is bendable but has certain strength.
  • the core tube 3 passes through the curved balloon 2 , and the curved balloon 2 and the core tube 3 are connected at two ends 1 .
  • the core tube has an opening 41 to fill the balloon with water or gas.
  • the inside of the core tube 3 is connected to the curved inner side of the curved balloon 2 through a whole line 4 .
  • the core tube 3 which is not easy to deform and resist torsion is connected with the curved inner side of the curved balloon 2 through the whole line 4 . It is equivalent to fixing the position and length of the curved inner side of the curved balloon 2, so that the entire curved balloon 2 is not easy to be stretched and twisted, and can achieve a preset shape.
  • the core tube 3 has a certain strength, the inflated curved balloon 3 has a certain pulling force.
  • the core tube 3 is connected to the curved inner side of the curved balloon 2 through several points or a whole section of them.
  • the connection between the middle section of the core tube 3 and the curved balloon 2 can be glued or plastic welded.
  • FIG. 2 is a schematic cross-sectional view of the middle section of the present invention.
  • the core tube 3 passes through the middle of the curved balloon 2, and is connected and fixed at the connection 4, and the connection 4 is located on the inside of the curvature of the curved balloon 2.
  • the core tube 3 is disposed on the outside of the curved balloon 2 and on the inside of the curvature of the curved balloon 2 .
  • the curved balloon 2 and the core tube 3 are connected at multiple points or in a whole section, and there is an opening 41 for injecting water or gas into the curved balloon 2 .
  • the fixing strip is a reinforcing rib 5 , which is located inside the curvature of the curved balloon 2 and has no ductility.
  • a core tube 3 is arranged inside the curved balloon 2, and the two ends of the core tube 3 are sealed and fixed with the curved balloon 2 itself, and there is an opening 41 for injecting water or gas into the balloon.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biophysics (AREA)
  • Child & Adolescent Psychology (AREA)
  • Surgery (AREA)
  • Manufacturing & Machinery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Toys (AREA)

Abstract

一种抗扭弯曲球囊装置，包括弯曲球囊（2）和不易扭曲的固定条。弯曲球囊（2）在充盈后向一侧弯曲，弯曲球囊（2）的弯曲内侧与固定条多点连接或一整段连接。抗扭弯曲球囊装置强化了弯曲球囊（2）在弯曲时提供的弯曲力，同时增强了弯曲球囊（2）的抗扭能力，使得弯曲球囊（2）在弯曲过程中可以更稳定地按照预期的方式弯曲。

Description

抗扭弯曲球囊装置 技术领域
本发明涉及医疗器械领域，尤其是抗扭弯曲球囊装置。
背景技术
弯曲球囊的一般结构为弯曲球囊和内部芯管。芯管经过球囊的两端开口，从球囊内部穿过。在球囊中的芯管，有开口可以对球囊进行注水或者注气。其中弯曲球囊与芯管一般的连接都是在弯曲球囊开口的两端，经过焊接或粘接等连接技术，将球囊和芯管进行连接并且保持球囊密闭。但是芯管在球囊中间的部分，一般与球囊的相对位置是游离状态，也就是在中间段，球囊和芯管的位置不固定。
弯曲球囊的最基本原理，就是弯曲球囊的弯曲外侧材料的伸长量大于内侧材料的伸长量，从而导致球囊的弯曲。一般弯曲球囊，是依靠弯曲球囊的结构导致内外侧伸长量不同导致弯曲，同样也是依靠芯管在弯曲球囊弯曲内侧作为长度不变的一个支撑，因为芯管材料与球囊不同，芯管无法伸长，为弯曲球囊提供一个内侧长度不变的作用。
但是在实际使用中发现，弯曲球囊弯曲后，对弯曲球囊施加反向弯折力或者扭曲力，导致弯曲球囊变形，由于芯管位置相对球囊不固定，导致芯管位置偏离，在弯曲形态中，芯管作为长度一定的一段改变位置，从而 彻底改变弯曲的形态。从力学性能表现上看，这样的弯曲球囊抗弯折和抗扭曲的能力差。
因此需要提供一种抗扭弯曲球囊装置，在强化弯曲球囊在弯曲时提供弯曲力的同时增强弯曲球囊的抗扭能力，使得弯曲球囊在弯曲过程中可以更稳定地按照预期的方式弯曲。
发明内容
本发明的目的在于解决现有弯曲球囊抗弯折和抗扭曲的能力差的缺陷，提供一种新的弯曲球囊装置，增强弯曲球囊的弯曲力度和抗扭能力。
为了实现上述发明目的，本发明提供一种抗扭弯曲球囊装置，包括弯曲球囊和不易扭曲的固定条，所述的弯曲球囊在充盈后向一侧弯曲，弯曲球囊的弯曲内侧与所述的固定条多点连接或一段整段连接。
其中，固定条为芯管，芯管有开口可以对球囊进行注水或者注气。芯管在弯曲球囊内部，且芯管两端和中间若干点或一段整段都与弯曲球囊弯曲内侧连接固定。
特别地，芯管可以在弯曲球囊外部，且有开孔与球囊相连通，且芯管若干点或一段整段都与弯曲球囊弯曲内侧连接固定。
优选地，固定条是一条加强筋，加强筋处于弯曲球囊的外部，所述的弯曲球囊内部设有一条芯管，芯管两端与弯曲球囊密封连接，芯管设有开口可以对球囊进行注水或者注气。
固定条与弯曲球囊固定连接是通过焊接。固定条与弯曲球囊固定连接也可以是用胶水粘接。固定条与弯曲球囊固定连接是整条线连接。固定条与弯曲球囊固定连接也可以是若干个点连接。
本发明的有益效果是提供了提供一种新的弯曲球囊装置，在于强化了弯曲球囊在弯曲时提供的弯曲力，同时增强了弯曲球囊的抗扭能力，使得弯曲球囊在弯曲过程中可以更稳定地按照预期的方式弯曲。
为使本发明的上述目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附附图，作详细说明如下。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术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发明的一些实施方式，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。
图1为本发明的一个实施例的示意图；
图2为图1实施例的中间段剖面示意图；
图3为本发明的另一实施例的示意图；
图4为本发明的又一实施例的示意图。
具体实施方式
下面将结合本发明实施例中附图，对本发明实施例中的技术方案进行清楚、完整的描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明的实施例，本领域技术人员在没有做出创造性劳动的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。
下面对本发明做进一步的详细说明，以令本领域技术人员参照说明文字能够据以实施。
首先请参照图1，图1为本发明的示意图。在图1中，具有抗扭性的固定条为芯管3，芯管3一般是塑料或者高分子材料制成，有一定柔韧性，但不具有明显的延展性，可弯曲但是有一定强度。
芯管3在弯曲球囊2中穿过，弯曲球囊2和芯管3在两端1处相连接。芯管有开口41可以对球囊进行注水或者注气。芯管3的与弯曲球囊2弯曲内侧通过整条线4连接。通过这样的结构，弯曲球囊2充盈时，由于弯曲球囊向一侧弯曲的特性，弯曲球囊2外侧比内侧膨胀程度更大，弯曲球囊2形成C字型的向内弯曲，从而形成一定位移可以牵拉其所在的人体腔管位移。但是由于球囊本身较软，存在不易定型，牵拉力度小，并且容易形成麻花状扭曲从而不能达到需要实现的牵拉效果。
由于有一定强度，不易变形抗扭的芯管3与弯曲球囊2弯曲内侧通过整条线4连接。相当于固定了弯曲球囊2弯曲内侧位置和长度，从而使得整个弯曲球囊2不易拉伸和扭曲，能够达到预设的形状。同时由于芯管3具有一定强度，因此膨胀后的弯曲球囊3具有一定牵拉力度。
在另外一些实施例中，芯管3与弯曲球囊2弯曲内侧是通过若干个点或其中一段整段进行连接。芯管3的中间段与弯曲球囊2的连接可以是胶水粘接，或者是塑料焊接。
接下来请参照图2，图2为本发明的中间段剖面示意图。芯管3从弯曲球囊2中间穿过，并且在连接4处进行连接固定，连接4处于弯曲球囊2的弯曲内侧。
如图3所示，在某些实施例中，芯管3设置在弯曲球囊2的外面，且处于弯曲球囊2的弯曲内侧。弯曲球囊2和芯管3多点或者整段进行连接，且有开口41可以对弯曲球囊2进行注水或者注气。
如图4所示，特别地，在某些实施例中，固定条是一条加强筋5，加强筋5处于弯曲球囊2的弯曲内侧且不具有延展性。弯曲球囊2内部设置有一条芯管3，芯管3两端与弯曲球囊2本身进行密封连接固定，有开口41可以对球囊进行注水或者注气。
尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用。它完全可以被适用于各种适合本发明的领域。对于熟悉本领域的人员而言可以容易实现另外的修改。因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里展示和描述的图例。

Claims (9)

  1. 抗扭弯曲球囊装置，包括弯曲球囊和不易扭曲的固定条，所述的弯曲球囊在充盈后向一侧弯曲，其特征在于所述的弯曲球囊的弯曲内侧与所述的固定条多点连接或一段整段连接。
  2. 如权利要求1所述的抗扭弯曲球囊装置，其特征在于所述的固定条为芯管，芯管有开口可以对球囊进行注水或者注气。
  3. 如权利要求2所述的抗扭弯曲球囊装置，其特征在于所述的芯管在弯曲球囊内部，且芯管两端和中间若干点或一段整段连接都与弯曲球囊弯曲内侧连接固定。
  4. 如权利要求2所述的抗扭弯曲球囊装置，其特征在于所述的芯管在弯曲球囊外部，且有开孔与球囊相连通，且芯管若干点或一段整段连接都与弯曲球囊弯曲内侧连接固定。
  5. 如权利要求1所述的抗扭弯曲球囊装置，其特征在于所述的固定条是一条加强筋，加强筋处于弯曲球囊的外部，所述的弯曲球囊内部设有一条芯管，芯管两端与弯曲球囊密封连接，芯管设有开口可以对球囊进行注水或者注气。
  6. 如权利要求1所述的抗扭弯曲球囊装置，其特征在于所述的固定条与弯曲球囊固定连接是通过焊接。
  7. 如权利要求1所述的抗扭弯曲球囊装置，其特征在于所述的固定条与弯曲球囊固定连接是用胶水粘接。
  8. 如权利要求1所述的抗扭弯曲球囊装置，其特征在于所述的固定条与弯曲球囊固定连接是整条线连接。
  9. 如权利要求1所述的抗扭弯曲球囊装置，其特征在于所述的固定条与弯曲球囊固定连接是若干个点连接。
PCT/CN2022/099480 2021-06-18 2022-06-17 抗扭弯曲球囊装置 WO2022262850A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22824322.6A EP4356846A1 (en) 2021-06-18 2022-06-17 Anti-torsion bending balloon device

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CN202110683384.1 2021-06-18
CN202110683384.1A CN115487402A (zh) 2021-06-18 2021-06-18 抗扭弯曲球囊装置

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