WO2022116058A1 - 一种磁感应器支架和穿刺支架 - Google Patents

一种磁感应器支架和穿刺支架 Download PDF

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Publication number
WO2022116058A1
WO2022116058A1 PCT/CN2020/133446 CN2020133446W WO2022116058A1 WO 2022116058 A1 WO2022116058 A1 WO 2022116058A1 CN 2020133446 W CN2020133446 W CN 2020133446W WO 2022116058 A1 WO2022116058 A1 WO 2022116058A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
slot
magnetic sensor
clamping part
extension plate
Prior art date
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PCT/CN2020/133446
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English (en)
French (fr)
Inventor
王沁
Original Assignee
苏州市立普医疗科技有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 苏州市立普医疗科技有限公司 filed Critical 苏州市立普医疗科技有限公司
Priority to PCT/CN2020/133446 priority Critical patent/WO2022116058A1/zh
Publication of WO2022116058A1 publication Critical patent/WO2022116058A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis

Definitions

  • the present invention relates to the technical field of puncture equipment, in particular to a magnetic sensor support and a puncture support.
  • Ultrasound interventional surgery is a new technology developed on the basis of ultrasonic images.
  • an ultrasonic probe puncture bracket needs to be installed on the ultrasonic probe, and then under the precise guidance of the ultrasonic probe puncture bracket, the puncture operation is performed, and the puncture needle can reach the lesion.
  • Surgical operations such as suction, drug administration, and catheter placement can be performed, or fine treatment operations such as microwave, radio frequency, and laser energy can be given.
  • Ultrasound interventional surgery is different from traditional surgical operations. It does not require surgery and only needs a fine needle puncture to complete. The patient suffers less pain, does not require hospitalization, and is relatively safe, simple to operate, and of high practical value.
  • Magnetic navigation sensors need to be used in the magnetic navigation puncture operation. Therefore, three brackets, the ultrasonic probe frame, the needle threading structure and the magnetic navigation magnetic sensor bracket, need to be used at the same time during the puncture operation.
  • the magnetic navigation magnetic sensor bracket is set independently. , its cost is high, it needs to be sterilized for repeated use, it is inconvenient to use, and there is the possibility of infection; in addition, during puncture surgery, the magnetic navigation magnetic sensor bracket needs to be installed separately, which not only wastes time, but also increases the overall need for the puncture bracket. space, and the possibility of mutual interference.
  • the invention provides a magnetic sensor bracket and a puncture bracket.
  • the magnetic sensor bracket has a simple structure, is easy to manufacture, and is easy to be quickly disassembled and assembled with the sensor.
  • the magnetic sensor bracket is installed on the puncture bracket to reduce the space occupied by the magnetic sensor bracket. Space and space required for installation, and at the same time, both the induction and the puncture bracket are disposable, reducing the risk of infection.
  • One aspect of the present invention provides a magnetic sensor support, comprising a sleeve, the axial first port of the sleeve is an insertion port; the outer wall of the sleeve is provided with a snap-fit structure for connecting with the puncture support.
  • the side wall of the sleeve is provided with an opening, and the opening penetrates through the side wall of the sleeve along the axis of the sleeve; when the sleeve is connected to the inductor, the inductor enters the sleeve from the insertion port to expand the opening and The sleeve is deformed, and the sensor is tightened by the resilience of the sleeve.
  • the limit baffle is arranged on the second port of the sleeve and blocks the second port;
  • the sleeve is in the shape of a cuboid, and the opening is provided on the first side wall of the sleeve
  • the clamping structure is arranged on the outer wall of the second side wall, and one end of the second side wall located at the second port of the sleeve is provided with an extension part;
  • a space is provided between the limiting baffle and the second port of the sleeve.
  • convex ribs are provided on the inner walls of the second side wall, the third side wall and the fourth side wall of the sleeve along the axis of the sleeve.
  • the clamping structure includes a first clamping part and a second clamping part, the first clamping part is connected with the outer wall of the sleeve, and the second clamping part is used for connecting with the puncture bracket; the first clamping part and The second clamping portion is clamped, thereby realizing the detachable connection between the magnetic sensor support and the puncture support.
  • the first clamping part includes a raised block, one end of the raised block is fixedly connected to the outer wall of the sleeve, and one end of the raised block away from the sleeve is provided with at least one extension plate, and the extension plate is connected to the outer wall of the raised block.
  • the second clamping part includes a slot, the slot includes a panel, and the panel is provided with a strip-shaped notch, one end of the strip-shaped notch is located at the notch of the slot; the first clamping part and the second clamping part When the part is clamped, the protruding block is inserted into the strip-shaped notch, and the extension board is inserted into the slot.
  • two extension plates are arranged on the raised block, one end of the extension plate away from the raised block is provided with a cut surface, the slot is provided with a limit side wall for fitting with the cut surface, and the first clamping part is provided with a cut surface.
  • the extension plate When engaging with the second engaging portion, the extension plate is inserted into the slot, and the cut surface is attached to the limiting sidewall; or, the first engaging portion includes two raised blocks, each of which is provided with a
  • the extension boards are respectively a first extension board and a second extension board, the widths of the first extension board and the second extension board are different, and the second clamping part includes two slots, which are the first slot and the second slot respectively , the width of the first slot is the same as the width of the first extension board, and the width of the second slot is the same as the width of the second extension board. Insert the first slot, and insert the second extension board into the second slot.
  • a concave groove is provided on the side of the bar-shaped notch facing the raised block, and a raised convex point is provided on the side of the raised block opposite to the groove; When the connecting portion is clamped, the convex point is clamped in the groove.
  • a puncture bracket which includes a bracket body and the above-mentioned magnetic sensor bracket, and the magnetic sensor bracket is connected to the bracket body through a clamping structure.
  • the inner diameter of the sleeve is equal to or slightly smaller than the outer diameter of the matched inductor.
  • the magnetic sensor bracket in this technical solution has a simple structure, is easy to manufacture, and is easy to quickly disassemble and assemble the sensor; at the same time, there is no need to install the magnetic sensor bracket during the operation, which saves the installation time of the magnetic sensor bracket, and does not need to be reserved.
  • the sensor installation space, the frame body and the magnetic sensor bracket are all disposable, which reduces the risk of infection and makes the use safer and more reliable.
  • FIG. 1 is a schematic structural diagram of a magnetic inductor bracket provided by an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a magnetic inductor bracket provided by an embodiment of the present invention
  • FIG. 3 is a cross-sectional view of a raised block in a frame body provided by an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of an extension plate in a frame body provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a clamping structure in a frame body provided by an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a clamping structure in a frame body provided by an embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of a groove in a frame body provided by an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention.
  • 31 raised block; 32: extension plate; 34: slot; 311: bump; 321: cut surface; 322: first extension plate; 323: second extension plate; : Limit sidewall; 344: First slot; 345: Second slot; 346: Groove.
  • the magnetic sensor bracket and the puncture bracket provided by the embodiment of the present invention have a simple structure, are easy to manufacture, and are easy to quickly disassemble and assemble the sensor.
  • the magnetic sensor bracket is installed on the puncture bracket to reduce the space occupied by the magnetic sensor bracket. And the space required for installation, at the same time, both the induction and the puncture bracket are disposable, which can reduce the risk of infection, as described below.
  • FIG. 1 is a schematic structural diagram of a magnetic inductor bracket provided by an embodiment of the present invention.
  • the magnetic sensor support 2 includes a sleeve 21 , and the axial first port of the sleeve 21 is an insertion port; the outer wall of the sleeve 21 is provided with a clamping structure 3 for connecting with the puncture support.
  • the magnetic sensor bracket 2 is connected to the puncture bracket through a snap connection structure, the sleeve 21 is used to connect the magnetic sensor, and the magnetic sensor bracket 2 does not need to be installed during surgery.
  • FIG. 2 is a cross-sectional view of a magnetic inductor bracket according to an embodiment of the present invention.
  • the side wall of the sleeve 21 is provided with an opening 23, and the opening 23 penetrates the side wall of the sleeve along the axial direction of the sleeve.
  • the inductor enters from the insertion port.
  • the opening 23 is expanded and the sleeve 21 is deformed, and the sensor is tightened by the resilience of the sleeve 21 .
  • the inner diameter of the sleeve 21 is the same as or slightly smaller than the outer diameter of the adapted sensor.
  • the sensor When the sensor is connected to the sleeve 21, the sensor is inserted into the sleeve 21 through the insertion port under the action of external force.
  • the opening 23 expands when the sensor is squeezed, so that the sleeve 21 is deformed.
  • the sleeve 21 Due to the resilience of the sleeve 21, the sleeve 21 is covered Tighten the internal sensor to achieve the purpose of fixing.
  • the magnetic inductor bracket 2 provided by the embodiment of the present invention has a simple structure and certain elasticity, so that the inductor can be installed stably, and the quick disassembly and assembly operation of the inductor is easy.
  • the magnetic sensor bracket 2 further includes a limit baffle 22 , and the limit baffle 22 is arranged on the second port of the sleeve 21 and blocks the second port;
  • the sleeve 21 is in the shape of a cuboid , including four side walls, namely the first side wall, the second side wall, the third side wall and the fourth side wall, the opening 23 is provided on the first side wall of the sleeve, and the clamping structure 3 is provided on the second side wall
  • the end of the second side wall located at the second port of the sleeve is provided with an extension part 24 ;
  • the limit baffle 22 in the sleeve 21 can prevent the sensor from going out of the sleeve 21.
  • the limit stop The plate 22 not only plays the role of limit, but also plays the role of reminding the completion of the installation, which is convenient for the quick assembly of the sensor.
  • an interval is provided between the limiting baffle 22 and the second port of the sleeve 21, and the interval exposes the end portion of the inductor, that is, the sleeve 21 is not half-wrapped on the end of the inductor. part, thereby reducing interference to the signal.
  • the inner walls of the second side wall, the third side wall and the fourth side wall of the sleeve 21 are provided with ribs 25 along the axis direction of the sleeve 21, and the inductor is installed on the inner wall of the sleeve 21.
  • the outer wall of the sensor is in contact with the top end of the rib 25.
  • the use of the rib 25 structure can reduce the contact area between the inner wall of the sleeve 21 and the sensor, thereby reducing friction and facilitating the insertion operation of the sensor; , the outer wall of the sensor is not all in contact with the inner wall of the sleeve 21, which can reduce the interference to the signal.
  • FIG. 3 is a cross-sectional view of a raised block in a frame body provided by an embodiment of the present invention
  • FIG. 4 is a cross-sectional view of an extension plate of the frame body provided by an embodiment of the present invention.
  • the frame body of the puncture stent includes a hoop 1
  • the magnetic sensor bracket 2 and the hoop 1 of the frame body can be of an integrated structure or a separate structure, wherein,
  • the one-piece structure eliminates the need for assembly operations and is more convenient to use.
  • the split structure can improve the versatility of the magnetic sensor bracket 2 and the frame body. Different types of magnetic sensor bracket 2 and the frame body can be combined to adapt to different models. of ultrasound probes and sensors.
  • the frame body and the magnetic inductor bracket 2 are separate structures, and the two are connected by a clamping structure 3;
  • the clamping structure 3 includes a first clamping part and a second clamping part, The first clamping part is connected with the outer wall of the sleeve, and the second clamping part is connected with the outer wall of the hoop 1; Detachable connection.
  • the first clamping part includes a raised block 31 , one end of the raised block 31 is fixedly connected with the outer wall of the sleeve, and one end of the raised block 31 away from the sleeve is provided There is at least one extension plate 32, and the extension plate 32 and the outer wall of the raised block 31 have a defined angle;
  • the second clamping part includes a slot 34, the slot 34 includes a panel 341, and the panel 341 is provided with a strip-shaped gap 342, the strip One end of the notch 342 is located at the notch of the slot 34 ; when the magnetic inductor bracket 2 is connected to the hoop 1 , the protruding block 31 is inserted into the strip notch 342 , and the extension plate 32 is inserted into the slot 34 .
  • the first clamping part and the second clamping part can be designed as standard parts, that is, the hoop 1 and the magnetic sensor bracket 2 suitable for any model include the same first clamping part. Therefore, any type of hoop 1 can be connected to any type of magnetic inductor bracket 2, thereby improving the versatility of the split-structure hoop 1 and the inductor.
  • FIG. 5 is a schematic structural diagram of a clamping structure in a frame body according to an embodiment of the present invention. As shown in FIG. 3 to FIG. 5 , this structure is one of the foolproof structures.
  • Two extension plates 32 are provided on the raised block 31 , and one end of the extension plate 32 away from the raised block 31 is provided with a cut surface 321 , the slot 34 is provided with a limit side wall 343 for fitting with the cut surface 321; when the magnetic sensor bracket 2 and the hoop 1 are connected, the extension plate 32 is inserted into the slot 34, and the cut surface 321 is attached to the limit side wall 343. combine.
  • the extension plate 32 can be smoothly removed into the slot 34 only when the limiting side wall 343 is aligned with the cut surface 321 , thereby avoiding the wrong installation direction of the magnetic sensor bracket 2 .
  • FIG. 6 is a schematic structural diagram of the clip-on structure in the frame body provided by the embodiment of the present invention.
  • the first engaging portion includes two protruding blocks 31 , and each protruding block 31 is provided with an extending plate 32 , which are the first extending plate 322 and the second extending plate 32 respectively.
  • the width of the board 323, the first extension board 322 and the second extension board 323 are different;
  • the width is the same as the width of the first extension plate 322
  • the width of the second slot 345 is the same as the width of the second extension plate 323 ;
  • FIG. 7 is a cross-sectional view of a groove in a frame body according to an embodiment of the present invention.
  • a concave groove 346 is provided on the side of the strip-shaped notch 342 facing the convex block 31
  • a convex block 31 is provided on the side opposite to the groove 346 .
  • connection between the protruding point 311 and the groove 346 acts as a limiter, and without external force, the protruding point 311 and the groove 346 always remain in a snap connection, thereby ensuring the stable connection between the extension plate 32 and the slot 34 .
  • FIG. 8 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention.
  • the puncture bracket includes a frame body, and the frame body includes a hoop 1, a needle threading structure 4 and a magnetic sensor bracket 2.
  • the puncture bracket is a one-time use and can be connected to an ultrasonic probe, a magnetic navigation sensor (or a magnetic sensor) at the same time. other sensors), and puncture needles.
  • the magnetic sensor bracket 2 is connected to the frame body. When in use, the connection operation of the magnetic sensor bracket 2 is unnecessary, thereby saving installation time. In addition, there is no need to reserve space required for installing the magnetic sensor bracket.
  • the magnetic sensor bracket 2 and the frame body are one-time use, therefore, there is no need for a dedicated magnetic sensor bracket 2 , reducing the use cost, and eliminating the need for cleaning operations, reducing the risk of infection, making the use of the magnetic sensor bracket 2 safer and more reliable.

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Abstract

一种磁感应器支架（2）和穿刺支架，该磁感应器支架（2）包括套筒（21），套筒（21）的第一端口为插入口；套筒（21）的外壁上设有用于与穿刺支架连接的卡接结构（3）。套筒（21）的内径等于或略小于所适配的感应器的外径，两者连接时，借助外力将感应器插入到套筒（21），套筒（21）通过卡接结构（3）连接在穿刺支架上。磁感应器支架（2）的结构简单，易于生产制造，以及易于感应器的快速拆装操作；同时，手术时无需再进行磁感应器支架（2）安装操作，节省了磁感应器支架（2）的安装时间，以及无需预留感应器安装空间，架体和磁感应器支架（2）均一次性使用，降低了感染风险，使用更加安全可靠。

Description

一种磁感应器支架和穿刺支架 技术领域
本发明涉及穿刺设备技术领域，特别地涉及一种磁感应器支架和穿刺支架。
背景技术
超声介入手术是在超声影像的基础上发展起来的新技术，手术中需要在超声探头上安装超声探头穿刺支架，然后在超声探头穿刺支架的精准引导下，进行穿刺操作，穿刺针可直达病灶，可进行抽吸、给药、置管等手术操作，或者给予微波、射频、激光能量等精细治疗操作。超声介入手术不同于传统的外科手术，其无需开刀，只需要一个细针穿刺就可以完成，患者痛苦较小，无需住院，并且相对安全，操作简单，实用价值比较高。
磁导航穿刺手术中需要使用磁导航感应器，因此，穿刺手术时需要同时使用超声探头架体、穿针结构和磁导航磁感应器支架三种支架，现有技术中，磁导航磁感应器支架独立设置，其成本较高，多次使用需要消毒杀菌，使用较为不便，而且存在感染可能；另外，穿刺手术时，磁导航磁感应器支架需要单独安装，不仅浪费时间，而且会增加穿刺支架整体所需的空间，以及还可能出现相互干扰的情况。
发明内容
本发明提供了一种磁感应器支架和穿刺支架，磁感应器支架结构简单，易于生产制造，以及易于与感应器的快速拆装操作，磁感应器支架安装在穿刺支架上，减小磁感应器支架占用的空间和安装所需空间，同时，感应之间和穿刺支架均一次性使用，降低感染风险。
本发明的一个方面，提供了一种磁感应器支架，包括套筒，套筒的轴 向第一端口为插入口；套筒的外壁设有用于与穿刺支架连接的卡接结构。
可选地，套筒的侧壁设有开口，开口沿套筒轴线方向贯穿套筒的侧壁；套筒与感应器连接时，感应器从所述插入口进入套筒内，使开口扩张以及套筒产生形变，通过套筒的回弹力套紧感应器。
可选地，还包括限位挡板，限位挡板设于套筒的第二端口，并且封挡所述第二端口；套筒呈长方体形，开口设于套筒的第一侧壁上，卡接结构设于第二侧壁的外壁上，第二侧壁位于套筒第二端口的一端设有延伸部；延伸部沿套筒轴线方向延伸，限位挡板与延伸部垂直连接。
可选地，限位挡板与套筒的第二端口之间设有间隔。
可选地，套筒的第二侧壁、第三侧壁和第四侧壁的内壁上沿套筒轴线方向设有凸棱。
可选地，卡接结构包括第一卡接部和第二卡接部，第一卡接部与套筒的外壁连接，第二卡接部用于与穿刺支架连接；第一卡接部和第二卡接部卡接，从而实现磁感应器支架和穿刺支架的可拆卸连接。
可选地，第一卡接部包括凸起块，凸起块的一端与套筒的外壁固定连接，凸起块远离套筒的一端设有至少一块延伸板，延伸板与凸起块的外壁具有限定夹角；第二卡接部包括插槽，插槽包括面板，面板上设有条形缺口，条形缺口的一端位于插槽的槽口处；第一卡接部和第二卡接部卡接时，凸起块插入条形缺口，延伸板插入插槽。
可选地，凸起块上设有两块延伸板，其中一块延伸板远离凸起块的一端设有切面，插槽内设有用于与切面贴合的限位侧壁，第一卡接部和第二卡接部卡接时，延伸板插入插槽内，并且切面与限位侧壁贴合；或者，第一卡接部包括两个凸起块，每个凸起块上设有一块延伸板，分别为第一延 伸板和第二延伸板，第一延伸板和第二延伸板的宽度不同，第二卡接部包括两个插槽，分别为第一插槽和第二插槽，第一插槽的宽度与第一延伸板的宽度相同，第二插槽的宽度与第二延伸板的宽度相同，第一卡接部和第二卡接部卡接时，第一延伸板插入第一插槽，第二延伸板插入第二插槽。
可选地，条形缺口朝向凸起块的一侧设有内凹的凹槽，凸起块上与凹槽相对的一侧设有凸起的凸点；第一卡接部和第二卡接部卡接时，凸点卡接于凹槽内。
本发明的另一个方面，还提供了一种穿刺支架，包括架体和上述磁感应器支架，磁感应器支架通过卡接结构与架体连接。
本发明提供的技术方案中，套筒的内径等于或略小于所适配的感应器的外径，两者连接时，借助外力将感应器插入到套筒，套筒通过卡接结构连接在穿刺支架上。本技术方案中磁感应器支架的结构简单，易于生产制造，以及易于感应器的快速拆装操作；同时，手术时无需再进行磁感应支架安装操作，节省了磁感应器支架的安装时间，以及无需预留感应器安装空间，架体和磁感应器支架均一次性使用，降低了感染风险，使用更加安全可靠。
附图说明
为了说明而非限制的目的，现在将根据本发明的优选实施例、特别是参考附图来描述本发明，其中：
图1为本发明实施方式提供的磁感应器支架的结构示意图；
图2为本发明实施方式提供的磁感应器支架的剖视图；
图3为本发明实施方式提供的架体中凸起块处的剖视图；
图4为本发明实施方式提供的架体中延伸板处的剖视图；
图5为本发明实施方式提供的架体中卡接结构处的结构示意图；
图6为本发明实施方式提供的架体中卡接结构处的结构示意图；
图7为本发明实施方式提供的架体中凹槽处的剖视图；
图8为本发明实施方式提供的穿刺支架的结构示意图。
图中：
1：抱箍；2：磁感应器支架；3：卡接结构；4：穿针结构；
21：套筒；22：限位挡板；23：开口；24：延伸部；25：凸棱；
31：凸起块；32：延伸板；34：插槽；311：凸点；321：切面；322：第一延伸板；323：第二延伸板；341：面板：342：条形缺口；343：限位侧壁；344：第一插槽；345：第二插槽；346：凹槽。
具体实施方式
本发明实施方式提供的磁感应器支架和穿刺支架，磁感应器支架结构简单，易于生产制造，以及易于感应器的快速拆装操作，磁感应器支架安装在穿刺支架上，减小磁感应器支架占用的空间和安装所需空间，同时，感应之间和穿刺支架均一次性使用，可降低感染风险，以下进行具体说明。
图1为本发明实施方式提供的磁感应器支架的结构示意图。如图1所示，磁感应器支架2包括套筒21，套筒21的轴向第一端口为插入口；套筒21的外壁上设有用于与穿刺支架连接的卡接结构3。磁感应器支架2通过卡接结构连接在穿刺支架上，套筒21用于连接磁感应器，磁感应器支架2无需手术中进行安装操作。
图2为本发明实施方式提供的磁感应器支架的剖视图。如图1和图2所示，套筒21的侧壁上设有开口23，开口23沿套筒轴线方向贯穿套筒的侧壁，套筒21与感应器连接时，感应器从插入口进入套筒21内，使开口23扩张以及套筒21产生形变，通过套筒21的回弹力套紧感应器。本发明实施方式中，套筒21的内径与所适配的感应器的外径相同或略小，感应器与套筒21连接时，在外力作用下将感应器由插入口插入到套筒21内，插入过程中，由于套筒21壁上设有开口23，开口23在感应器挤压的情况下扩张，从而使套筒21产生形变，由于套筒21的回弹力，使得套筒21套紧内部的感应器，达到固定的目的。拆卸感应器时，用力将感应器由套 筒21内拔出即可。本发明实施方式提供的磁感应器支架2，其结构简单，且具有一定的弹性，使得感应器安装稳定，以及易于感应器的快速拆装操作。
如图1和图2所示，磁感应器支架2还包括限位挡板22，，限位挡板22设于套筒21的第二端口，并且封挡第二端口；套筒21呈长方体形，包括四个侧壁，分别为第一侧壁、第二侧壁、第三侧壁和第四侧壁，开口23设于套筒的第一侧壁上，卡接结构3设于第二侧壁的外壁上，第二侧壁位于套筒第二端口的一端设有延伸部24；延伸部24沿套筒21轴线方向延伸，限位挡板22与延伸部24垂直连接。套筒21中限位挡板22可避免感应器穿出套筒21，感应器安装操作时，当感应器的顶部抵接到限位挡板22后，即表示感应器安装到位，限位挡板22既起到限位作用，也起到安装完成提醒作用，方便感应器快速组装。优选地，在限位挡板22与套筒21的第二端口之间设有间隔，该间隔使感应器的端部部分暴露在外，即套筒21非半包裹的包覆在感应器的端部，从而降低对信号的干扰。
继续参考图1和图2，如图所示，套筒21的第二侧壁、第三侧壁和第四侧壁的内壁上沿套筒21轴线方向设有凸棱25，感应器安装在套筒21内时，感应器的外壁与凸棱25的顶端抵接，采用凸棱25结构，可降低套筒21内壁与感应器的接触面积，进而可减少摩擦，利于感应器插入操作；另外，感应器的外壁并非全部与套筒21的内壁贴合，可降低对信号的干扰。
图3为本发明实施方式提供的架体中凸起块处的剖视图；图4为本发明实施方式提供的架体中延伸板处的剖视图。如图3和图4所示，本发明实施方式中，穿刺支架的架体包括抱箍1，磁感应器支架2与架体的抱箍1可以为一体结构，也可为分体结构，其中，采用一体结构，无需再进行拼装操作，使用更加方便，而分体结构可提高磁感应器支架2和架体的通用性，可将不同型号的磁感应器支架2和架体组合，以适配不同型号的超声探头和感应器。
如图3和图4所示的结构中，架体和磁感应器支架2为分体结构，两者通过卡接结构3连接；卡接结构3包括第一卡接部和第二卡接部，第一卡接部与套筒的外壁连接，第二卡接部与抱箍1的外壁连接；第一卡接部和第二卡接部卡接，从而实现磁感应器支架2和抱箍1的可拆卸连接。
如图3和图4所示，本发明实施方式中，第一卡接部包括凸起块31，凸起块31的一端与套筒的外壁固定连接，凸起块31远离套筒的一端设有至少一块延伸板32，延伸板32与凸起块31的外壁具有限定夹角；第二卡接部包括插槽34，插槽34包括面板341，面板341上设有条形缺口342，条形缺口342的一端位于插槽34的槽口处；磁感应器支架2和抱箍1连接时，凸起块31插入条形缺口342，延伸板32插入插槽34。
在抱箍1和磁感应器支架2中，可将第一卡接部和第二卡接部设计为标准部件，即任意型号适配的抱箍1和磁感应器支架2都包括相同的第一卡接部和第二卡接部，因此，可将任意型号的抱箍1连接任意型号的磁感应器支架2，从而提高分体结构的抱箍1和感应器的通用性。
本发明实施方式中，在卡接结构3中设置防呆结构，通过防呆结构可避免磁感应器支架2安装方向错误，同时，也利于卡接结构3的快速拼装。图5为本发明实施方式提供的架体中卡接结构处的结构示意图。如图3至图5所示，此结构为其中的一种防呆结构形式，凸起块31上设有两块延伸板32，其中一块延伸板32远离凸起块31的一端设有切面321，插槽34内设有用于与切面321贴合的限位侧壁343；磁感应器支架2和抱箍1连接时，延伸板32插入插槽34内，并且切面321与限位侧壁343贴合。卡接结构3连接时，只有限位侧壁343与切面321对准时，才可将延伸板32顺利拆入到插槽34内，进而避免磁感应器支架2安装方向错误。
本发明实施方式中，防呆结构还可以采用另一种结构形式，图6为本发明实施方式提供的架体中卡接结构处的结构示意图。如图3、图4和图 6所示，第一卡接部包括两个凸起块31，每个凸起块31上设有一块延伸板32，分别为第一延伸板322和第二延伸板323，第一延伸板322和第二延伸板323的宽度不同；第二卡接部包括两个插槽34，分别为第一插槽344和第二插槽345，第一插槽344的宽度与第一延伸板322的宽度相同，第二插槽345的宽度与第二延伸板323的宽度相同；磁感应器支架2和抱箍1连接时，第一延伸板322插入第一插槽344，第二延伸板323插入第二插槽345。该防呆结构中，只有在宽度匹配的情况下，才可将延伸板32顺利插入到插槽34中。
图7为本发明实施方式提供的架体中凹槽处的剖视图。如图3、图4和图7所示，条形缺口342朝向凸起块31的一侧设有内凹的凹槽346，凸起块31上与凹槽346相对的一侧设有凸起的凸点311；磁感应器支架2和抱箍1连接时，凸点311卡接于凹槽346内。凸点311与凹槽346的连接起限位作用，在不借助外力的情况下，凸点311和凹槽346始终保持卡接，进而确保延伸板32和插槽34的稳定连接。
本实施方式还提供了一种穿刺支架。图8为本发明实施方式提供的穿刺支架的结构示意图。如图8所示，穿刺支架包括架体，架体包括抱箍1、穿针结构4和磁感应器支架2，该穿刺支架为一次性使用，可同时满足连接超声探头、磁导航感应器(或其他感应器)、以及穿刺针。
磁感应器支架2连接在架体上，使用时，无需再进行磁感应器支架2连接操作，进而节省了安装时间，另外，也无需预留安装磁感应器支架所需的空间。磁感应器支架2和架体为一次性使用，因此，无需专用的磁感应器支架2，降低使用成本，以及无需清洗操作，降低感染风险，使得磁感应器支架2的使用更加安全可靠。
上述具体实施方式，并不构成对本发明保护范围的限制。本领域技术人员应该明白的是，取决于设计要求和其他因素，可以发生各种各样的修改、组合、子组合和替代。任何在本发明的精神和原则之内所作的修改、 等同替换和改进等，均应包含在本发明保护范围之内。

Claims (10)

  1. 一种磁感应器支架，其特征在于，包括套筒(21)，套筒(21)的轴向第一端口为插入口；
    套筒(21)的外壁设有用于与穿刺支架连接的卡接结构(3)。
  2. 根据权利要求1所述的磁感应器支架，其特征在于，套筒(21)的侧壁设有开口(23)，开口(23)沿套筒(21)轴线方向贯穿套筒(21)的侧壁；
    套筒(21)与感应器连接时，感应器从所述插入口进入套筒(21)内，使开口(23)扩张以及套筒(21)产生形变，通过套筒(21)的回弹力套紧感应器。
  3. 根据权利要求2所述的磁感应器支架，其特征在于，还包括限位挡板(22)，限位挡板(22)设于套筒(21)的第二端口，并且封挡所述第二端口；
    套筒(21)呈长方体形，开口(23)设于套筒的第一侧壁上，卡接结构设于第二侧壁的外壁上，第二侧壁位于套筒(21)第二端口的一端设有延伸部(24)；
    延伸部(24)沿套筒(21)轴线方向延伸，限位挡板(22)与延伸部(24)垂直连接。
  4. 根据权利要求2所述的磁感应器支架，其特征在于，限位挡板(22)与套筒(21)的第二端口之间设有间隔。
  5. 根据权利要求2所述的磁感应器支架，其特征在于，套筒(21)的第二侧壁、第三侧壁和第四侧壁的内壁上沿套筒轴线方向设有凸棱(25)。
  6. 根据权利要求1-5任一项所述的磁感应器支架，其特征在于，卡接结构(3)包括第一卡接部和第二卡接部，第一卡接部与套筒(21)的外 壁连接，第二卡接部用于与穿刺支架连接；
    第一卡接部和第二卡接部卡接，从而实现磁感应器支架(2)和穿刺支架的可拆卸连接。
  7. 根据权利要求6所述的磁感应器支架，其特征在于，第一卡接部包括凸起块(31)，凸起块(31)的一端与套筒(21)的外壁固定连接，凸起块(2)远离套筒(21)的一端设有至少一块延伸板(32)，延伸板(32)与凸起块(31)的外壁具有限定夹角；
    第二卡接部包括插槽(34)，插槽(34)包括面板(341)，面板(341)上设有条形缺口(342)，条形缺口(342)的一端位于插槽(34)的槽口处；
    第一卡接部和第二卡接部卡接时，凸起块(31)插入条形缺口(342)，延伸板(32)插入插槽(34)。
  8. 根据权利要求7所述的磁感应器支架，其特征在于，凸起块(31)上设有两块延伸板(32)，其中一块延伸板(32)远离凸起块(31)的一端设有切面(321)，插槽(34)内设有用于与切面(321)贴合的限位侧壁(343)，第一卡接部和第二卡接部卡接时，延伸板(32)插入插槽(34)内，并且切面(321)与限位侧壁(343)贴合；
    或者，
    第一卡接部包括两个凸起块(31)，每个凸起块(31)上设有一块延伸板(32)，分别为第一延伸板(322)和第二延伸板(323)，第一延伸板(322)和第二延伸板(321)的宽度不同，第二卡接部包括两个插槽(34)，分别为第一插槽(344)和第二插槽(345)，第一插槽(344)的宽度与第一延伸板(322)的宽度相同，第二插槽(345)的宽度与第二延伸板(323)的宽度相同，第一卡接部和第二卡接部卡接时，第一延伸板(322)插入第一插槽(344)，第二延伸板(323)插入第二插槽(345)。
  9. 根据权利要求7所述的磁感应器支架，其特征在于，条形缺口(342)朝向凸起块(31)的一侧设有内凹的凹槽(346)，凸起块(31)上与凹槽 (346)相对的一侧设有凸起的凸点(311)；
    第一卡接部和第二卡接部卡接时，凸点(311)卡接于凹槽(346)内。
  10. 一种穿刺支架，其特征在于，包括架体和如权利要求1至9中任一项所述的磁感应器支架(2)，磁感应器支架(2)通过卡接结构(3)与架体连接。
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