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WO2024159833A1 - Femoral artery cannula capable of implementing cardiac intervention therapy - Google Patents

Femoral artery cannula capable of implementing cardiac intervention therapy Download PDF

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Publication number
WO2024159833A1
WO2024159833A1 PCT/CN2023/128163 CN2023128163W WO2024159833A1 WO 2024159833 A1 WO2024159833 A1 WO 2024159833A1 CN 2023128163 W CN2023128163 W CN 2023128163W WO 2024159833 A1 WO2024159833 A1 WO 2024159833A1
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WIPO (PCT)
Prior art keywords
rotating rod
cannula
gear
wall
femoral artery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/128163
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French (fr)
Chinese (zh)
Inventor
徐灿
王东进
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Nanjing Drum Tower Hospital
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Nanjing Drum Tower Hospital
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Publication date
Application filed by Nanjing Drum Tower Hospital filed Critical Nanjing Drum Tower Hospital
Publication of WO2024159833A1 publication Critical patent/WO2024159833A1/en
Anticipated expiration legal-status Critical
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Definitions

  • the present invention relates to the technical field of medical devices, and in particular to a femoral artery cannula capable of implementing cardiac interventional treatment.
  • Cardiac interventional therapy is a new technology for diagnosing and treating cardiovascular diseases. It does not require opening the chest. Under the guidance of imaging methods, the surface blood vessels are punctured and the cannula is sent to the lesion site with the help of certain instruments. Heart disease is confirmed and treated through specific cardiac catheterization operation techniques.
  • the femoral artery catheter used for cardiac interventional treatment is inserted manually, little by little, which requires the operator to use both hands.
  • the operation is difficult, time-consuming and labor-intensive, and greatly affects the efficiency of the operation.
  • the purpose of the present invention is to solve the problem that in the prior art, a femoral artery catheter for cardiac interventional treatment is usually inserted manually little by little, which requires the operator to cooperate with both hands, is difficult to operate, time-consuming and labor-intensive, and greatly affects the efficiency of the operation.
  • a femoral artery catheter for cardiac interventional treatment is proposed to solve the problem that in the prior art, the catheter is usually inserted manually little by little, which requires the operator to cooperate with both hands, is difficult to operate, time-consuming and labor-intensive, and greatly affects the efficiency of the operation.
  • a femoral artery cannula for cardiac interventional treatment comprises a cannula body and a tube delivery block, wherein the cannula body is movably arranged inside the tube delivery block, a through slot is provided on the upper side of the tube delivery block, a first rotating rod is rotatably arranged inside the lower end of the through slot, a first gear is fixedly sleeved on the rod wall of the first rotating rod, a straight tooth groove is provided on the upper surface of the cannula body, the first gear is meshedly connected with the straight tooth groove, a second rotating rod is provided on the upper side of the first rotating rod, both ends of the second rotating rod are rotatably connected with the inner wall of the corresponding through slot, a second gear is movably sleeved on the rod wall of the second rotating rod, and a second gear is provided inside the second gear.
  • the one-way transmission mechanism includes a ratchet tooth and a spring, a ratchet groove is opened on the inner wall of the circular groove, the ratchet tooth is meshed inside the ratchet groove, one end of the ratchet tooth is fixed with an axle pin, the axle pin is rotatably connected to the fixing ring, the spring is arranged between one side of the ratchet tooth and the fixing ring, and the two ends of the spring are respectively fixedly connected to the corresponding ratchet tooth and the fixing ring.
  • a plurality of balls are rollingly embedded in the inner wall of the lower end of the delivery pipe block.
  • a push wheel is fixedly sleeved on the rod wall of the second rotating rod.
  • the outer side wall of the push wheel is provided with anti-slip texture.
  • both side walls of the first gear are in conflict with the inner walls of the corresponding spur tooth grooves.
  • the present invention provides a femoral artery cannula for cardiac interventional treatment, which has the following beneficial effects:
  • the femoral artery cannula capable of implementing cardiac interventional treatment is pushed to one side by pressing the push wheel with fingers, so that the ratchet teeth engage with the ratchet grooves, which can drive the second gear to rotate, and the second gear drives the first gear to rotate, which can drive the cannula to move.
  • the push wheel is pushed to the other side, the ratchet teeth are squeezed downward and do not engage with the ratchet grooves, which can drive the second gear to rotate. Therefore, pushing the push wheel back and forth will only drive the second gear to rotate in one direction, and then only drive the cannula to move in one direction. Therefore, pushing the push wheel back and forth can smoothly and efficiently insert the cannula, which can improve the efficiency of the operation and reduce the difficulty of the operation.
  • the parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology.
  • the present invention can be operated with one hand without changing hands, and can smoothly and efficiently insert the cannula, which can improve the efficiency of the operation and reduce the difficulty of the operation.
  • FIG1 is a schematic structural diagram of a femoral artery cannula for implementing cardiac interventional treatment proposed by the present invention
  • FIG2 is an enlarged schematic diagram of the structure of a local portion A in FIG1 ;
  • FIG. 3 is a schematic diagram of the structure of a local B portion in FIG. 1 .
  • 1 cannula body 1 tube delivery block, 3 first rotating rod, 4 first gear, 5 straight tooth groove, 6 second rotating rod, 7 second gear, 8 fixing ring, 9 ratchet groove, 10 shaft pin, 11 ratchet tooth, 12 spring, 13 push wheel, 14 ball.
  • a femoral artery cannula for cardiac interventional treatment includes a cannula body 1 and a tube delivery block 2.
  • the cannula body 1 is movably inserted into the interior of the tube delivery block 2.
  • a through groove is provided on the upper side of the tube delivery block 2.
  • a first rotating rod 3 is rotatably provided inside the lower end of the through groove.
  • a first gear 4 is fixedly sleeved on the rod wall of the first rotating rod 3.
  • a straight tooth groove 5 is provided on the upper surface of the cannula body 1.
  • the first gear 4 is meshed with the straight tooth groove 5.
  • a second rotating rod 6 is provided on the upper side of the first rotating rod 3.
  • Both ends of the second rotating rod 6 are rotatably connected to the inner wall of the corresponding through groove.
  • a second gear 7 is movably sleeved on the rod wall of the second rotating rod 6.
  • a circular groove is provided inside the second gear 7.
  • a fixing ring 8 is provided on the inner side of the circular groove. The fixing ring 8 is fixedly sleeved on the rod wall of the second rotating rod 6.
  • a one-way transmission mechanism is provided between the second gear 7 and the fixing ring 8.
  • the one-way transmission mechanism includes a ratchet tooth 11 and a spring 12.
  • a ratchet groove 9 is opened on the inner wall of the circular groove.
  • the ratchet tooth 11 is meshed and arranged inside the ratchet groove 9.
  • An axle pin 10 is fixedly sleeved at one end of the ratchet tooth 11.
  • the axle pin 10 is rotatably connected to the fixing ring 8.
  • the spring 12 is arranged between one side of the ratchet tooth 11 and the fixing ring 8. The two ends of the spring 12 are fixedly connected to the corresponding ratchet tooth 11 and the fixing ring 8 respectively.
  • a plurality of balls 14 are rolled and embedded in the inner wall of the lower end of the tube delivery block 2, so that the cannula body 1 can move The more smooth.
  • a push wheel 13 is fixedly sleeved on the rod wall of the second rotating rod 6 to facilitate pushing the second rotating rod 6 .
  • the outer wall of the push wheel 13 is provided with anti-skid patterns to increase the friction between the hand and the push wheel 13 and prevent slipping when pushing.
  • Both side walls of the first gear 4 are in contact with the inner walls of the corresponding straight tooth grooves 5 to prevent the cannula body 1 from shaking as much as possible, so that the cannula body 1 can slide stably.
  • the finger presses on the push wheel 13 and pushes it to one side, and the ratchet teeth 11 engage with the ratchet groove 9, which can drive the second gear 7 to rotate, and the second gear 7 drives the first gear 4 to rotate, that is, it can drive the cannula body 1 to move, and push the push wheel 13 to the other side, the ratchet teeth 11 are squeezed downward and do not engage with the ratchet groove 9, that is, it will not drive the second gear 7 to rotate, so that the push wheel 13 is pushed back and forth, which will only drive the second gear 7 to rotate in one direction, and then only drive the cannula body 1 to move in one direction. Therefore, the push wheel 13 is pushed back and forth to smoothly and efficiently insert the cannula body 1, which can improve the efficiency of the operation and reduce the difficulty of the operation.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Surgical Instruments (AREA)

Abstract

A femoral artery cannula capable of implementing cardiac intervention therapy, the cannula comprising a cannula body (1) and a cannula delivery block (2), wherein the cannula body (1) is movably arranged inside the cannula delivery block (2) in a penetrating manner, slots are provided in an upper side of the cannula delivery block (2), a first rotating rod (3) is rotatably arranged inside a lower end of each of the slots, and a first gear (4) is fixedly sleeved on a wall of the first rotating rod (3); and straight tooth grooves (5) are provided on an upper surface of the cannula body (1), the first gear (4) engages with the straight tooth grooves (5), a second rotating rod (6) is provided on an upper side of the first rotating rod (3), two ends of the second rotating rod (6) are rotatably connected to an inner wall of a corresponding slot, a second gear (7) is movably sleeved on a wall of the second rotating rod (6), and circular grooves are formed inside the second gear (7). The present device can be operated with one hand without changing hands, the cannula can be stably and efficiently inserted, the operation efficiency can be improved, and the operation difficulty can be reduced.

Description

一种可实施心脏介入治疗的股动脉插管A femoral artery catheter for cardiac intervention 技术领域Technical Field

本发明涉及医疗器械技术领域,尤其涉及一种可实施心脏介入治疗的股动脉插管。The present invention relates to the technical field of medical devices, and in particular to a femoral artery cannula capable of implementing cardiac interventional treatment.

背景技术Background Art

心脏介入治疗是一种新型诊断与治疗心血管疾病技术,无需开胸,在影像学方法的引导下,经过穿刺体表血管,借助某些器械,将插管送到病变部位,通过特定的心脏插管操作技术对心脏病进行确诊和治疗的方法。Cardiac interventional therapy is a new technology for diagnosing and treating cardiovascular diseases. It does not require opening the chest. Under the guidance of imaging methods, the surface blood vessels are punctured and the cannula is sent to the lesion site with the help of certain instruments. Heart disease is confirmed and treated through specific cardiac catheterization operation techniques.

传统的可实施心脏介入治疗的股动脉插管在插入时,通常采用人工手动一点点将插管插入,需要操作者双手配合,操作难度高,费时费力,非常影响手术的效率。Traditionally, the femoral artery catheter used for cardiac interventional treatment is inserted manually, little by little, which requires the operator to use both hands. The operation is difficult, time-consuming and labor-intensive, and greatly affects the efficiency of the operation.

发明内容Summary of the invention

本发明的目的是为了解决现有技术中可实施心脏介入治疗的股动脉插管在插入时,通常采用人工手动一点点将插管插入,需要操作者双手配合,操作难度高,费时费力,非常影响手术的效率的问题,而提出的一种可实施心脏介入治疗的股动脉插管。The purpose of the present invention is to solve the problem that in the prior art, a femoral artery catheter for cardiac interventional treatment is usually inserted manually little by little, which requires the operator to cooperate with both hands, is difficult to operate, time-consuming and labor-intensive, and greatly affects the efficiency of the operation. A femoral artery catheter for cardiac interventional treatment is proposed to solve the problem that in the prior art, the catheter is usually inserted manually little by little, which requires the operator to cooperate with both hands, is difficult to operate, time-consuming and labor-intensive, and greatly affects the efficiency of the operation.

为了实现上述目的,本发明采用了如下技术方案:In order to achieve the above object, the present invention adopts the following technical solutions:

一种可实施心脏介入治疗的股动脉插管,包括插管主体和送管块,所述插管主体活动穿设于送管块的内部,所送管块的上侧开设有通槽,所述通槽的下端内部转动设置有第一转杆,所述第一转杆的杆壁固定套接有第一齿轮,所述插管主体的上表面开设有直齿槽,所述第一齿轮与直齿槽啮合连接,所述第一转杆的上侧设置有第二转杆,所述第二转杆的两端均与对应的通槽的内壁转动连接,所述第二转杆的杆壁活动套设有第二齿轮,所述第二齿轮的内部开设有 圆槽,所述圆槽的内侧设置有固定环,所述固定环与第二转杆的杆壁固定套接,所述第二齿轮与固定环之间设置有单向传动机构。A femoral artery cannula for cardiac interventional treatment comprises a cannula body and a tube delivery block, wherein the cannula body is movably arranged inside the tube delivery block, a through slot is provided on the upper side of the tube delivery block, a first rotating rod is rotatably arranged inside the lower end of the through slot, a first gear is fixedly sleeved on the rod wall of the first rotating rod, a straight tooth groove is provided on the upper surface of the cannula body, the first gear is meshedly connected with the straight tooth groove, a second rotating rod is provided on the upper side of the first rotating rod, both ends of the second rotating rod are rotatably connected with the inner wall of the corresponding through slot, a second gear is movably sleeved on the rod wall of the second rotating rod, and a second gear is provided inside the second gear. A circular groove, a fixing ring is arranged on the inner side of the circular groove, the fixing ring is fixedly sleeved with the rod wall of the second rotating rod, and a one-way transmission mechanism is arranged between the second gear and the fixing ring.

优选的,所述单向传动机构包括棘齿牙和弹簧,所述圆槽的内壁开设有棘齿槽,所述棘齿牙啮合设置于棘齿槽的内部,所述棘齿牙的一端固定套设有轴销,所述轴销与固定环转动连接,所述弹簧设置于棘齿牙的一侧与固定环之间,所述弹簧的两端分别与对应的棘齿牙和固定环固定连接。Preferably, the one-way transmission mechanism includes a ratchet tooth and a spring, a ratchet groove is opened on the inner wall of the circular groove, the ratchet tooth is meshed inside the ratchet groove, one end of the ratchet tooth is fixed with an axle pin, the axle pin is rotatably connected to the fixing ring, the spring is arranged between one side of the ratchet tooth and the fixing ring, and the two ends of the spring are respectively fixedly connected to the corresponding ratchet tooth and the fixing ring.

优选的,所述送管块的下端内壁滚动嵌设有多个滚珠。Preferably, a plurality of balls are rollingly embedded in the inner wall of the lower end of the delivery pipe block.

优选的,所述第二转杆的杆壁固定套接有推轮。Preferably, a push wheel is fixedly sleeved on the rod wall of the second rotating rod.

优选的,所述推轮的外侧壁设置有防滑纹路。Preferably, the outer side wall of the push wheel is provided with anti-slip texture.

优选的,所述第一齿轮的两侧壁均与对应的直齿槽的内壁相抵触。Preferably, both side walls of the first gear are in conflict with the inner walls of the corresponding spur tooth grooves.

与现有技术相比,本发明提供了一种可实施心脏介入治疗的股动脉插管,具备以下有益效果:Compared with the prior art, the present invention provides a femoral artery cannula for cardiac interventional treatment, which has the following beneficial effects:

该可实施心脏介入治疗的股动脉插管,通过手指压在推轮上,向一侧推动,棘齿牙与棘齿槽卡接,即能带动第二齿轮转动,第二齿轮带动第一齿轮转动,即能够带动插管移动,将推轮朝另一侧推动,棘齿牙被向下挤压,不与棘齿槽啮合,即不会带动第二齿轮转动,从而往复推动推轮,仅会带动第二齿轮朝一个方向转动,进而只会带动插管朝着一个方向移动,因此往复推动推轮即可平稳高效将插管插入,能够提高手术效率,降低手术难度。The femoral artery cannula capable of implementing cardiac interventional treatment is pushed to one side by pressing the push wheel with fingers, so that the ratchet teeth engage with the ratchet grooves, which can drive the second gear to rotate, and the second gear drives the first gear to rotate, which can drive the cannula to move. When the push wheel is pushed to the other side, the ratchet teeth are squeezed downward and do not engage with the ratchet grooves, which can drive the second gear to rotate. Therefore, pushing the push wheel back and forth will only drive the second gear to rotate in one direction, and then only drive the cannula to move in one direction. Therefore, pushing the push wheel back and forth can smoothly and efficiently insert the cannula, which can improve the efficiency of the operation and reduce the difficulty of the operation.

该装置中未涉及部分均与现有技术相同或可采用现有技术加以实现,本发明可单手操作,无需换手,能够平稳高效将插管插入,能够提高手术效率,降低手术难度。The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention can be operated with one hand without changing hands, and can smoothly and efficiently insert the cannula, which can improve the efficiency of the operation and reduce the difficulty of the operation.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本发明提出的一种可实施心脏介入治疗的股动脉插管的结构示意图;FIG1 is a schematic structural diagram of a femoral artery cannula for implementing cardiac interventional treatment proposed by the present invention;

图2为图1中局部A部分的结构放大示意图; FIG2 is an enlarged schematic diagram of the structure of a local portion A in FIG1 ;

图3为图1中局部B部分的结构放大示意图。FIG. 3 is a schematic diagram of the structure of a local B portion in FIG. 1 .

图中:1插管主体、2送管块、3第一转杆、4第一齿轮、5直齿槽、6第二转杆、7第二齿轮、8固定环、9棘齿槽、10轴销、11棘齿牙、12弹簧、13推轮、14滚珠。In the figure: 1 cannula body, 2 tube delivery block, 3 first rotating rod, 4 first gear, 5 straight tooth groove, 6 second rotating rod, 7 second gear, 8 fixing ring, 9 ratchet groove, 10 shaft pin, 11 ratchet tooth, 12 spring, 13 push wheel, 14 ball.

具体实施方式DETAILED DESCRIPTION

下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

在本发明的描述中,需要理解的是,术语“上”、“下”、“前”、“后”、“左”、“右”、“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的限制。In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

参照图1-3,一种可实施心脏介入治疗的股动脉插管,包括插管主体1和送管块2,插管主体1活动穿设于送管块2的内部,送管块2的上侧开设有通槽,通槽的下端内部转动设置有第一转杆3,第一转杆3的杆壁固定套接有第一齿轮4,插管主体1的上表面开设有直齿槽5,第一齿轮4与直齿槽5啮合连接,第一转杆3的上侧设置有第二转杆6,第二转杆6的两端均与对应的通槽的内壁转动连接,第二转杆6的杆壁活动套设有第二齿轮7,第二齿轮7的内部开设有圆槽,圆槽的内侧设置有固定环8,固定环8与第二转杆6的杆壁固定套接,第二齿轮7与固定环8之间设置有单向传动机构。Referring to Figures 1-3, a femoral artery cannula for cardiac interventional treatment includes a cannula body 1 and a tube delivery block 2. The cannula body 1 is movably inserted into the interior of the tube delivery block 2. A through groove is provided on the upper side of the tube delivery block 2. A first rotating rod 3 is rotatably provided inside the lower end of the through groove. A first gear 4 is fixedly sleeved on the rod wall of the first rotating rod 3. A straight tooth groove 5 is provided on the upper surface of the cannula body 1. The first gear 4 is meshed with the straight tooth groove 5. A second rotating rod 6 is provided on the upper side of the first rotating rod 3. Both ends of the second rotating rod 6 are rotatably connected to the inner wall of the corresponding through groove. A second gear 7 is movably sleeved on the rod wall of the second rotating rod 6. A circular groove is provided inside the second gear 7. A fixing ring 8 is provided on the inner side of the circular groove. The fixing ring 8 is fixedly sleeved on the rod wall of the second rotating rod 6. A one-way transmission mechanism is provided between the second gear 7 and the fixing ring 8.

单向传动机构包括棘齿牙11和弹簧12,圆槽的内壁开设有棘齿槽9,棘齿牙11啮合设置于棘齿槽9的内部,棘齿牙11的一端固定套设有轴销10,轴销10与固定环8转动连接,弹簧12设置于棘齿牙11的一侧与固定环8之间,弹簧12的两端分别与对应的棘齿牙11和固定环8固定连接。The one-way transmission mechanism includes a ratchet tooth 11 and a spring 12. A ratchet groove 9 is opened on the inner wall of the circular groove. The ratchet tooth 11 is meshed and arranged inside the ratchet groove 9. An axle pin 10 is fixedly sleeved at one end of the ratchet tooth 11. The axle pin 10 is rotatably connected to the fixing ring 8. The spring 12 is arranged between one side of the ratchet tooth 11 and the fixing ring 8. The two ends of the spring 12 are fixedly connected to the corresponding ratchet tooth 11 and the fixing ring 8 respectively.

送管块2的下端内壁滚动嵌设有多个滚珠14,使得插管主体1能够移动 的更顺畅。A plurality of balls 14 are rolled and embedded in the inner wall of the lower end of the tube delivery block 2, so that the cannula body 1 can move The more smooth.

第二转杆6的杆壁固定套接有推轮13,方便推动第二转杆6。A push wheel 13 is fixedly sleeved on the rod wall of the second rotating rod 6 to facilitate pushing the second rotating rod 6 .

推轮13的外侧壁设置有防滑纹路,增大手部与推轮13的摩擦,尽量防止推动时打滑。The outer wall of the push wheel 13 is provided with anti-skid patterns to increase the friction between the hand and the push wheel 13 and prevent slipping when pushing.

第一齿轮4的两侧壁均与对应的直齿槽5的内壁相抵触,尽量防止插管主体1晃动,使得插管主体1能够稳定的滑动。Both side walls of the first gear 4 are in contact with the inner walls of the corresponding straight tooth grooves 5 to prevent the cannula body 1 from shaking as much as possible, so that the cannula body 1 can slide stably.

本发明中,使用时,手指压在推轮13上,向一侧推动,棘齿牙11与棘齿槽9卡接,即能带动第二齿轮7转动,第二齿轮7带动第一齿轮4转动,即能够带动插管主体1移动,将推轮13朝另一侧推动,棘齿牙11被向下挤压,不与棘齿槽9啮合,即不会带动第二齿轮7转动,从而往复推动推轮13,仅会带动第二齿轮7朝一个方向转动,进而只会带动插管主体1朝着一个方向移动,因此往复推动推轮13即可平稳高效将插管主体1插入,能够提高手术效率,降低手术难度。In the present invention, when in use, the finger presses on the push wheel 13 and pushes it to one side, and the ratchet teeth 11 engage with the ratchet groove 9, which can drive the second gear 7 to rotate, and the second gear 7 drives the first gear 4 to rotate, that is, it can drive the cannula body 1 to move, and push the push wheel 13 to the other side, the ratchet teeth 11 are squeezed downward and do not engage with the ratchet groove 9, that is, it will not drive the second gear 7 to rotate, so that the push wheel 13 is pushed back and forth, which will only drive the second gear 7 to rotate in one direction, and then only drive the cannula body 1 to move in one direction. Therefore, the push wheel 13 is pushed back and forth to smoothly and efficiently insert the cannula body 1, which can improve the efficiency of the operation and reduce the difficulty of the operation.

以上所述,仅为本发明较佳的具体实施方式,但本发明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发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。 The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (6)

一种可实施心脏介入治疗的股动脉插管,包括插管主体(1)和送管块(2),其特征在于,所述插管主体(1)活动穿设于送管块(2)的内部,所送管块(2)的上侧开设有通槽,所述通槽的下端内部转动设置有第一转杆(3),所述第一转杆(3)的杆壁固定套接有第一齿轮(4),所述插管主体(1)的上表面开设有直齿槽(5),所述第一齿轮(4)与直齿槽(5)啮合连接,所述第一转杆(3)的上侧设置有第二转杆(6),所述第二转杆(6)的两端均与对应的通槽的内壁转动连接,所述第二转杆(6)的杆壁活动套设有第二齿轮(7),所述第二齿轮(7)的内部开设有圆槽,所述圆槽的内侧设置有固定环(8),所述固定环(8)与第二转杆(6)的杆壁固定套接,所述第二齿轮(7)与固定环(8)之间设置有单向传动机构。A femoral artery cannula for cardiac interventional treatment comprises a cannula body (1) and a tube delivery block (2), characterized in that the cannula body (1) is movably arranged inside the tube delivery block (2), a through slot is provided on the upper side of the tube delivery block (2), a first rotating rod (3) is rotatably arranged inside the lower end of the through slot, a first gear (4) is fixedly sleeved on the rod wall of the first rotating rod (3), a straight tooth groove (5) is provided on the upper surface of the cannula body (1), and the first gear (4) and the straight tooth groove (5) are connected to each other. The first rotating rod (3) is meshingly connected, a second rotating rod (6) is arranged on the upper side of the first rotating rod (3), both ends of the second rotating rod (6) are rotatably connected to the inner wall of the corresponding through groove, a second gear (7) is movably sleeved on the rod wall of the second rotating rod (6), a circular groove is provided inside the second gear (7), a fixing ring (8) is arranged on the inner side of the circular groove, the fixing ring (8) is fixedly sleeved on the rod wall of the second rotating rod (6), and a one-way transmission mechanism is arranged between the second gear (7) and the fixing ring (8). 根据权利要求1所述的一种可实施心脏介入治疗的股动脉插管,其特征在于,所述单向传动机构包括棘齿牙(11)和弹簧(12),所述圆槽的内壁开设有棘齿槽(9),所述棘齿牙(11)啮合设置于棘齿槽(9)的内部,所述棘齿牙(11)的一端固定套设有轴销(10),所述轴销(10)与固定环(8)转动连接,所述弹簧(12)设置于棘齿牙(11)的一侧与固定环(8)之间,所述弹簧(12)的两端分别与对应的棘齿牙(11)和固定环(8)固定连接。A femoral artery cannula for cardiac interventional treatment according to claim 1, characterized in that the one-way transmission mechanism includes a ratchet tooth (11) and a spring (12), the inner wall of the circular groove is provided with a ratchet groove (9), the ratchet tooth (11) is meshedly arranged inside the ratchet groove (9), one end of the ratchet tooth (11) is fixedly sleeved with an axle pin (10), the axle pin (10) is rotatably connected to the fixing ring (8), the spring (12) is arranged between one side of the ratchet tooth (11) and the fixing ring (8), and the two ends of the spring (12) are respectively fixedly connected to the corresponding ratchet tooth (11) and the fixing ring (8). 根据权利要求1所述的一种可实施心脏介入治疗的股动脉插管,其特征在于,所述送管块(2)的下端内壁滚动嵌设有多个滚珠(14)。The femoral artery cannula for cardiac interventional treatment according to claim 1 is characterized in that a plurality of balls (14) are rollingly embedded in the inner wall of the lower end of the tube delivery block (2). 根据权利要求1所述的一种可实施心脏介入治疗的股动脉插管,其特征在于,所述第二转杆(6)的杆壁固定套接有推轮(13)。The femoral artery cannula for cardiac interventional treatment according to claim 1 is characterized in that a push wheel (13) is fixedly sleeved on the rod wall of the second rotating rod (6). 根据权利要求4所述的一种可实施心脏介入治疗的股动脉插管,其特征在于,所述推轮(13)的外侧壁设置有防滑纹路。A femoral artery cannula for cardiac interventional treatment according to claim 4, characterized in that the outer side wall of the push wheel (13) is provided with anti-slip texture. 根据权利要求1所述的一种可实施心脏介入治疗的股动脉插管,其特征在于,所述第一齿轮(4)的两侧壁均与对应的直齿槽(5)的内壁相抵触。 A femoral artery cannula for cardiac interventional treatment according to claim 1, characterized in that both side walls of the first gear (4) are in conflict with the inner walls of the corresponding straight tooth groove (5).
PCT/CN2023/128163 2023-02-03 2023-10-31 Femoral artery cannula capable of implementing cardiac intervention therapy Ceased WO2024159833A1 (en)

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