WO2024174764A1 - 超声成像系统及超声成像导管组件 - Google Patents

超声成像系统及超声成像导管组件 Download PDF

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Publication number
WO2024174764A1
WO2024174764A1 PCT/CN2024/071545 CN2024071545W WO2024174764A1 WO 2024174764 A1 WO2024174764 A1 WO 2024174764A1 CN 2024071545 W CN2024071545 W CN 2024071545W WO 2024174764 A1 WO2024174764 A1 WO 2024174764A1
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WO
WIPO (PCT)
Prior art keywords
catheter
clamping
outer sheath
clamping portion
socket
Prior art date
Application number
PCT/CN2024/071545
Other languages
English (en)
French (fr)
Inventor
甘耀�
何志华
陈海平
包俊伟
赵心涛
欧阳舜
Original Assignee
深圳微创踪影医疗装备有限公司
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.)
Filing date
Publication date
Priority claimed from CN202310190801.8A external-priority patent/CN116236229A/zh
Priority claimed from CN202320358220.6U external-priority patent/CN219183828U/zh
Application filed by 深圳微创踪影医疗装备有限公司 filed Critical 深圳微创踪影医疗装备有限公司
Publication of WO2024174764A1 publication Critical patent/WO2024174764A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters

Definitions

  • the present application relates to the technical field of medical devices, and in particular to an ultrasonic imaging system and an ultrasonic imaging catheter assembly.
  • Intravascular ultrasound refers to a medical imaging technology that combines non-invasive ultrasound technology with invasive catheter technology, using an imaging catheter with an ultrasound probe connected to the end.
  • Intravascular ultrasound is a method of placing a miniaturized ultrasound transducer into the blood vessel cavity through an imaging catheter to display the cross-sectional morphology of the blood vessel and/or blood flow patterns. It mainly includes ultrasound imaging technology and Doppler blood flow measurement. On the basis of angiography, the blood vessels and lesions to be examined are selected.
  • the present application provides an ultrasound imaging system and an ultrasound imaging catheter assembly to solve one or more technical problems in the prior art.
  • an ultrasonic imaging catheter assembly comprising:
  • An imaging catheter comprising an outer sheath connector and a clamping member disposed inside the outer sheath connector;
  • An inner core the inner core is movably arranged in the outer sheath joint along the axial direction, and the clamping member is provided with at least two first clamping parts that are clamped and matched with the inner core;
  • the catheter socket is rotatably matched with the outer sheath connector
  • the catheter socket comprises a socket body and at least two unlocking members connected to the socket body
  • the socket body is provided with an axial channel for avoiding the inner core
  • the unlocking member is arranged corresponding to the first clamping portion, and when the catheter socket is rotated in a first direction, the unlocking member is The locking member abuts against the first clamping portion, and the first clamping portion is separated from the core; when the catheter socket rotates in the second direction, the unlocking member is separated from the first clamping portion, and the first clamping portion is clamped with the core under the self-restoring force; the first direction is opposite to the second direction.
  • the unlocking member is a push column, a push block or a push rod extending along the axial direction; and/or all the first clamping parts are arranged in sequence and spaced apart around the circumference of the outer sheath joint, and all the unlocking members are arranged in sequence and spaced apart around the circumference of the socket body.
  • an axial limiting boss for abutting and cooperating with the first clamping portion is provided on the outer wall of the inner core; and/or at least one limiting recess is provided on the outer wall of the inner core, and the first clamping portion is correspondingly clamped in the limiting recess.
  • the diameter of the cavity surrounded by all the unlocking members is the same as the outer diameter of the inner core; and/or the unlocking member has an elastic portion, and the elastic portion abuts against the inner core.
  • At least one second clamping portion is provided on the socket body, and at least one third clamping portion is provided on the outer sheath connector, and the second clamping portion and the third clamping portion correspond to each other and are clamped together.
  • a slide groove corresponding to the second clamping portion is provided on the outer wall of the outer sheath connector, and the slide groove includes a first groove section and a second groove section that are connected; the first groove section extends along the axial direction of the outer sheath connector and extends to the end surface of the outer sheath connector facing the catheter socket; the second groove section extends along the circumferential direction of the outer sheath connector and extends to the third clamping portion.
  • the clamping member includes a seat body clamped and connected to the inner wall of the outer sheath connector, and the first clamping portion is connected to the seat body.
  • the seat body is provided with at least one fourth clamping portion, and the outer sheath joint is provided with a fifth clamping portion corresponding to the fourth clamping portion; and/or, the outer wall of the seat body is provided with at least one first guide portion extending along the axial direction, and the inner wall of the outer sheath joint is provided with a second guide portion that slides with the first guide portion.
  • the core is provided with a radio frequency terminal;
  • the ultrasound imaging catheter assembly also includes a catheter terminal, the catheter terminal is detachably snap-connected to the core, the catheter terminal is provided with an electrical connection portion, and the electrical connection portion is electrically connected to the radio frequency terminal by plugging.
  • the ultrasound imaging catheter assembly further includes an electronic tag disposed on the outer sheath connector and a reading device disposed on the catheter socket.
  • An ultrasonic imaging system comprises the ultrasonic imaging catheter assembly.
  • the above-mentioned ultrasound imaging system and ultrasound imaging catheter assembly are assembled by assembling the imaging catheter and the catheter socket.
  • the unlocking member can correspondingly drive the first clamping portion to open to release the inner core.
  • the socket body is provided with an axial channel to avoid the inner core, which can drive the inner core to withdraw axially and/or rotate at any angle in the circumferential direction, so that all-round image information of the inner wall of the blood vessel can be obtained.
  • the overall structure is simpler, which can improve work efficiency and reduce the production and assembly costs.
  • the production and assembly process is simple, the production and assembly process is stable, and it is conducive to mass production.
  • the first clamping portion clamps and fixes the inner core, which can prevent the inner core from being pulled out of the outer sheath connector in an accidental situation, which is safe and effective.
  • FIG1 is a schematic structural diagram of an ultrasound imaging catheter assembly according to an embodiment of the present application.
  • FIG2 is a schematic structural diagram of the imaging catheter in the structure shown in FIG1 from another viewing angle;
  • FIG3 is a schematic diagram of the decomposed structure of the structure shown in FIG2 ;
  • FIG4 is a schematic structural diagram of a first clamping portion of a clamping member in accordance with an embodiment of the present application being clamped and fixed on a core;
  • FIG5 is a schematic diagram of a structural part showing cooperation among a clamping fixture, a core, and a conduit socket according to an embodiment of the present application from a one-view perspective.
  • Imaging catheter 11. Outer sheath connector; 111. Third clamping part; 112. First slot section; 113. Second slot section; 114. Fifth clamping part; 1141. Clamping hole; 1142. Groove; 115. Second guide part; 116. Mounting hole; 12. Clamping member; 121. First clamping part; 122. Seat body; 1221. Fourth clamping part; 1222. First guide part; 13. Core; 131.
  • RF terminal 132, axial limiting boss; 133, limiting recess; 134, split shell; 135, sixth clamping portion; 20, catheter socket; 21, socket body; 211, axial channel; 212, second clamping portion; 22, unlocking piece; 221, first wall; 222, second wall; 223, third wall; 30, catheter terminal; 31, seventh clamping portion; 41, electronic tag; 42, reading device.
  • the proximal end refers to the end of the instrument or component close to the operator, and the distal end refers to the end of the instrument or component away from the operator;
  • the axial direction refers to the direction parallel to the line connecting the distal and proximal centers of the instrument or component, the radial direction refers to the direction perpendicular to the axial direction, and the circumferential direction refers to the direction surrounding the axial direction.
  • Figure 1 shows a schematic structural diagram of an ultrasonic imaging catheter assembly according to an embodiment of the present application
  • Figure 2 shows another perspective structural diagram of an imaging catheter in the structure shown in Figure 1
  • Figure 3 shows a schematic structural diagram of an exploded structure in the structure shown in Figure 2
  • Figure 4 shows a schematic structural diagram of a first clamping portion of a clamping fixture according to an embodiment of the present application being clamped and fixed on a core
  • Figure 5 shows a schematic structural diagram of a clamping fixture, a core, and a catheter socket according to an embodiment of the present application cooperating with each other at a perspective.
  • An ultrasonic imaging catheter assembly provided in an embodiment of the present application includes: an imaging catheter 10, a core 13, a catheter socket 20, and a catheter terminal 30.
  • the imaging catheter 10 includes an outer sheath connector 11 and a clamping fixture 12 connected to the inner part of the outer sheath connector 11.
  • the core 13 is movably arranged in the outer sheath connector 11 along the axial direction.
  • the clamping fixture 12 is provided with at least two first clamping portions 121 that are clamped and matched with the core 13.
  • the core 13 is provided with a radio frequency terminal 131.
  • the catheter socket 20 is rotatably matched with the outer sheath connector 11.
  • the catheter socket 20 includes a socket body 21 and at least two unlocking members 22 connected to the socket body 21.
  • the socket body 21 is provided with an axial channel 211 for avoiding the inner core 13.
  • the unlocking member 22 is arranged corresponding to the first clamping portion 121.
  • the unlocking member 22 contacts or disengages from the first clamping portion 121, so that the first clamping portion 121 is disengaged from or clamped with the inner core 13.
  • the unlocking member 22 abuts against the first clamping portion 121, and the first clamping portion 121 is disengaged from the inner core 13;
  • the catheter socket 20 rotates in a second direction, the unlocking member 22 is disengaged from the first clamping portion 121, and the first clamping portion 121 is clamped with the inner core 13 under the self-restoring force.
  • the first direction is opposite to the second direction. For example, if the first direction is clockwise, the second direction is counterclockwise.
  • the above-mentioned ultrasound imaging catheter assembly when the imaging catheter 10 and the catheter socket 20 are assembled, the outer sheath connector 11 and the catheter socket 20 are plugged and rotated with each other, and the unlocking member 22 can drive the first clamping portion 121 to open to release the inner core 13. Since the first clamping portion 121 releases the inner core 13, the socket body 21 is provided with an axial channel 211 to avoid the inner core 13, so that the inner core 13 can be driven to withdraw axially and/or rotate at any angle along the circumferential direction, so that the image information of the inner wall of the blood vessel can be obtained in all directions.
  • the overall structure is simpler, the work efficiency can be improved, and the production and assembly cost is reduced at the same time.
  • the production and assembly process is simple, the production and assembly process is stable, and it is conducive to mass production.
  • the first clamping portion 121 clamps and fixes the inner core 13, it can prevent the inner core 13 from being pulled out from the outer sheath connector 11 in an accidental situation, which is safe and effective.
  • the catheter terminal 30 is detachably connected to the core 13 by snapping, and the catheter terminal 30 is provided with an electrical connection portion (not shown in the figure), and the electrical connection portion is electrically connected to the RF terminal 131 by plugging.
  • one of the electrical connection portion and the RF terminal 131 is a male head, and the other is a female head, and the electrical connection is achieved by plugging the male head and the female head into each other.
  • the catheter terminal 30 is also inserted axially so that the catheter terminal 30 is snap-connected to the core 13, and the electrical connection portion is electrically connected to the RF terminal 131 inside the core 13 by plugging.
  • the catheter terminal 30 is snap-connected to the core 13, so that the catheter terminal 30 can drive the core 13 to withdraw axially and/or rotate at any angle in the circumferential direction, so that the image information of the inner wall of the blood vessel can be obtained in all directions.
  • the "clamping fixture 12" can be “a part of the outer sheath connector 11", that is, the “clamping fixture 12" and the “other parts of the outer sheath connector 11” are manufactured as one piece; it can also be an independent component separable from the “other parts of the outer sheath connector 11", that is, the “clamping fixture 12” can be manufactured independently and then combined with the "other parts of the outer sheath connector 11" into a whole.
  • the first clamping portion 121 includes but is not limited to various structural forms such as a clamping claw, a buckle, a clamping head, a clamping pin, a clamping block, a clamping arm, a clamping strip, etc., and can be flexibly adjusted and set according to actual needs.
  • the number of unlocking members 22 is equal to the number of first holding portions 121, so that under the drive of the unlocking members 22, each first holding portion 121 can release the core 13, and after the core 13 is released by the holding member 12, it can be withdrawn and/or rotated under the drive of the catheter terminal 30.
  • the number of unlocking members 22 is consistent with the number of first holding portions 121.
  • the plurality of unlocking members 22 respectively correspond to and synchronously abut against the plurality of first holding portions 121, and the first holding portions 121 are disengaged from the core 13; when the catheter socket 20 rotates in the second direction, the plurality of unlocking members 22 respectively disengage synchronously from the plurality of first holding portions 121, and the first holding portions 121 are engaged with the core 13 under the self-restoring force.
  • the unlocking member 22 is a pushing column, a pushing block or a pushing rod extending along the axial direction.
  • the unlocking member 22 in order to facilitate pushing open the first holding portion 121 corresponding thereto, includes a first wall surface 221 facing the inner core 13, a second wall surface 222 and a third wall surface 223 disposed adjacent to the first wall surface 221.
  • the second wall surface 222 and/or the third wall surface 223 are disposed at an acute angle to the first wall surface 221.
  • the second wall surface 222 and/or the third wall surface 223 cooperate with the first wall surface 221 to form a sharp angle, which is conducive to pushing open the first holding portion 121.
  • all the first holding portions 121 are arranged in sequence around the circumference of the outer sheath connector 11.
  • All the unlocking members 22 are arranged at intervals in sequence around the circumference of the socket body 21. In this way, all the first clamping parts 121 can clamp the inner core 13 synchronously, and can firmly fix the inner core 13. Accordingly, all the unlocking members 22 can realize the synchronous opening of the first clamping parts 121 corresponding to them to release the inner core 13.
  • an axial limiting boss 132 is provided on the outer wall of the inner core 13 for abutting and cooperating with the first clamping portion 121.
  • the axial limiting boss 132 is specifically, for example, circumferentially arranged around the outer wall of the inner core 13. In this way, the axial limiting boss 132 prevents the inner core 13 from moving axially by abutting the first clamping portion 121.
  • At least one limiting recess 133 is provided on the outer wall of the core 13, and the first clamping portion 121 is correspondingly clamped in the limiting recess 133.
  • the unlocking member 22 abuts against the first clamping portion 121, and the first clamping portion 121 is separated from the core 13, that is, the first clamping portion 121 is correspondingly separated from the limiting recess 133;
  • the catheter socket 20 rotates in the second direction, the unlocking member 22 is separated from the first clamping portion 121, and the first clamping portion 121 is clamped with the core 13 under the self-restoring force, that is, when the first clamping portion 121 is correspondingly clamped in the limiting recess 133, the clamping member 12 can prevent the core 13 from rotating in the circumferential direction.
  • the limiting recess 133 provided on the outer wall of the core 13 can facilitate the separation of the
  • the end of the first clamping portion 121 away from the catheter socket 20 is elastic, so that when the first clamping portion 121 is separated from the unlocking member 22, the first clamping portion can return to the initial state, that is, clamp the inner core.
  • the diameter of the cavity surrounded by all the unlocking members 22 is the same as the outer diameter of the core 13; and/or, the unlocking member 22 has an elastic portion, and the elastic portion abuts against the core 13. In this way, the unlocking member 22 can firmly clamp and fix the core 13 before unlocking and releasing the core 13.
  • At least one second clamping portion 212 is provided on the socket body 21, and at least one third clamping portion 111 is provided on the outer sheath connector 11.
  • the second clamping portion 212 and the third clamping portion 111 correspond to each other and are engaged with each other.
  • the socket body 21 is fixedly connected to the outer sheath connector 11 by the way that the second clamping portion 212 and the third clamping portion 111 are engaged with each other, which can achieve rapid assembly and good connection stability.
  • the second holding portion 212 is, for example, a protrusion disposed on the inner wall of the socket body 21, and the third holding portion 111 is, for example, a slot or a clamping block disposed on the outer wall of the outer sheath connector 11; or
  • the second clamping portion 212 is, for example, a clamping groove or a clamping block provided on the socket body 21
  • the third clamping portion 111 is, for example, a protrusion provided on the outer wall of the outer sheath connector 11 .
  • a slide groove corresponding to the second clamping portion 212 is provided on the outer wall of the outer sheath joint 11, and the slide groove includes a first groove section 112 and a second groove section 113 that are connected to each other; the first groove section 112 extends along the axial direction of the outer sheath joint 11 and extends to the end surface of the outer sheath joint 11 facing the catheter socket 20; the second groove section 113 extends along the circumferential direction of the outer sheath joint 11 and extends to the third clamping portion 111.
  • the second clamping portion 212 enters the first slot section 112 and moves along the first slot section 112 to the second slot section 113.
  • the first slot section 112 can play an axial guiding role and can calibrate the positions of the catheter socket 20 and the imaging catheter 10 to prevent angular deflection; then, when the second clamping portion 212 moves to the second slot section 113, the imaging catheter 10 and the catheter socket 20 are driven to rotate relative to each other.
  • the unlocking member 22 can rotate to push away the first clamping portion 121, and on the other hand, the second clamping portion 212 moves to the third clamping portion 111 and is fixedly clamped with the third clamping portion 111, thereby achieving fixed clamping of the catheter socket 20 to the outer sheath connector 11.
  • the second clamping portion 212 is provided in plurality
  • the third clamping portion 111 is provided in plurality
  • the second clamping portion 212 is provided correspondingly to the third clamping portion 111.
  • the catheter socket 20 can be stably fixedly clamped to the outer sheath connector 11 by the plurality of third clamping portions 111 correspondingly clamping and fixing with the plurality of second clamping portions 212.
  • the clamping member 12 includes a seat body 122 clamped and connected to the inner wall of the outer sheath connector 11, and the first clamping portion 121 is connected to the seat body 122.
  • the clamping member 12 and the outer sheath connector 11 are processed and manufactured separately during production, and then assembled together by clamping, which is convenient for processing and has high assembly efficiency, and is suitable for mass production.
  • At least one fourth holding portion 1221 is disposed on the seat body 122 , and the outer sheath connector 11 is provided with a fifth holding portion 114 correspondingly engaged with the fourth holding portion 1221 .
  • the fourth clamping portion 1221 is provided in plurality, and the plurality of fourth clamping portions 1221 are arranged on the seat body 122 at equal intervals or unequal intervals, for example. Accordingly, the fifth clamping portion 114 is provided in plurality. In this way, the outer sheath connector 11 is clamped and fixed to the plurality of fourth clamping portions 1221 of the clamping member 12 through the plurality of fifth clamping portions 114, respectively, so that the clamping member 12 is stably fixed to the outer sheath connector 11.
  • the fourth holding portion 1221 includes but is not limited to various structural forms such as claws, buckles, clamps, clamps, clamps, clamping blocks, clamping arms or clamping strips, etc., which can be flexibly adjusted according to actual needs. With settings.
  • the fifth clamping portion 114 includes a clamping hole 1141 formed on the inner wall of the outer sheath connector 11, and a groove 1142 connected to the clamping hole 1141.
  • the main body of the fourth clamping portion 1221 is located in the groove 1142, and the head of the fourth clamping portion 1221 is clamped in the clamping hole 1141. In this way, the fifth clamping portion 114 is tightly combined with the fourth clamping portion 1221, so that the clamping member 12 can be stably fixed to the outer sheath connector 11.
  • At least one first guide portion 1222 extending in the axial direction is provided on the outer wall of the seat body 122, and a second guide portion 115 slidingly matched with the first guide portion 1222 is provided on the inner wall of the outer sheath connector 11.
  • first guide portion 1222 and the second guide portion 115 need to be aligned with each other and assembled together.
  • the first guide portion 1222 and the second guide portion 115 slide and match each other, so that the assembly is fast and the combined stability after assembly is good.
  • the first guide portion 1222 is configured as a guide block
  • the second guide portion 115 is configured as a guide groove adapted to the first guide portion 1222.
  • the first guide portion 1222 is configured as a guide groove
  • the second guide portion 115 is configured as a guide block adapted to the first guide portion 1222.
  • the core 13 includes two split shells 134 that are detachably connected to each other.
  • the RF terminal 131 is located in the area enclosed by the two split shells 134. During the assembly process, the RF terminal 131 is fixedly installed in the area enclosed by the two split shells 134, and then the two split shells 134 are connected and fixed to each other.
  • connection method of the two split shells 134 includes but is not limited to being connected by snap connection, and being connected by fasteners such as screws, pins, rivets, etc.
  • the two split shells 134 are connected by snap connection, and the assembly efficiency is relatively higher.
  • the ultrasound imaging catheter assembly further includes an electronic tag 41 disposed on the outer sheath connector 11, and a reading device 42 disposed on the catheter socket 20.
  • the reading device 42 can sense the electronic tag 41.
  • the reading device 42 is, for example, a wireless radio frequency identifier (Radio Frequency Identification, abbreviated as RFID).
  • a mounting hole 116 is provided on one end of the outer sheath connector 11 close to the catheter socket 20, and the electronic tag 41 is disposed inside the mounting hole 116 and sealed with a sealant.
  • the electronic tag 41 is disposed on an end surface of the outer sheath connector 11 facing the catheter socket 20, so that it can be easily sensed by the wireless radio frequency identifier.
  • the core 13 is further provided with at least one sixth clamping portion 135.
  • the conduit terminal 30 is provided with a seventh clamping portion 31 corresponding to and engaging with the sixth clamping portion 135.
  • the clamping portion 31 and the sixth clamping portion 135 are mutually clamped to achieve connection and fixation with the inner core 13 , and the assembly efficiency is high.
  • an ultrasound imaging system includes the ultrasound imaging catheter assembly according to any one of the above embodiments.
  • the above-mentioned ultrasonic imaging system when assembling the imaging catheter 10 and the catheter socket 20, makes the outer sheath connector 11 and the catheter socket 20 plug and rotate with each other, and the unlocking member 22 can drive the first clamping part 121 to open to release the core 13. Because the first clamping part 121 releases the core 13, the socket body 21 is provided with an axial channel 211 for avoiding the core 13, and the catheter terminal 30 is connected with the core 13 by clamping, so that the catheter terminal 30 can drive the core 13 to withdraw along the axial direction and/or rotate at any angle in the circumferential direction, so that the image information of the inner wall of the blood vessel can be obtained in all directions.
  • the overall structure is simpler, the work efficiency can be improved, and the production and assembly cost is reduced at the same time.
  • the production and assembly process is simple, the production and assembly process is stable, and it is conducive to mass production.
  • the first clamping part 121 clamps and fixes the core 13, it can prevent the core 13 from being pulled out of the outer sheath connector 11 in an accidental situation, which is safe and effective.
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of “plurality” is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral connection; it can be a machine connection.
  • the term “mechanical connection” may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be a connection between two elements or an interaction between two elements, unless otherwise clearly defined.
  • the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.
  • a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • a first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

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Abstract

本申请涉及一种超声成像系统及超声成像导管组件，超声成像导管组件包括：成像导管(10)、导管插座(20)、以及导管端子(30)。导管端子(30)设有电连接部，电连接部与射频端子(131)通过插接的方式电性连接。在进行组装装配时，使成像导管(10)与导管插座(20)两者相互插接，解锁件(22)能相应驱动第一卡持部(121)张开以松开内核；此外，沿轴向插入导管端子(30)使导管端子(30)与内核卡接相连，电连接部与内核内部的射频端子(131)通过插接的方式电性连接。另外，导管端子(30)能带动内核沿轴向回撤和/或周向方向任意角度自转，能实现获取到血管内壁全方位的图像信息。相对于相关技术的组装方式，整体结构更加简单，能提升工作效率，同时降低了生产组装成本，生产组装工艺简单，生产组装工艺稳定，利于大批量生产。

Description

超声成像系统及超声成像导管组件
本申请要求于2023年2月22日提交中国专利局，申请号为2023203582206，申请名称为“超声成像系统及超声成像导管组件”以及2023年2月22日提交中国专利局，申请号为2023101908018，申请名称为“超声成像系统及超声成像导管组件”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及医疗器械技术领域，特别是涉及一种超声成像系统及超声成像导管组件。
背景技术
血管内超声(IVUS)是指无创性的超声技术和有创性的导管技术相结合，使用末端连接有超声探针的成像导管进行的医学成像技术。血管内超声是通过成像导管将微型化的超声换能器置入血管腔内，显示血管断面形态和/或血流图形，主要包括超声显像技术和多普勒血流测定两方面。在血管造影检查的基础上，选定所需检查的血管和病变部位。
传统地，在对超声成像系统中的成像导管安装时，通常采用两步组装，一方面需要将成像导管的外鞘接头与导管插座组装连接在一起，另一方面需要将成像导管的内核与导管端子组装连接在一起。组装结构较为复杂，组装效率较低，成本也较高。
发明内容
本申请提供一种超声成像系统及超声成像导管组件，以解决现有技术中的一个或者多个技术问题。
其技术方案如下：一种超声成像导管组件，包括：
成像导管，所述成像导管包括外鞘接头、设于所述外鞘接头内部的卡固件；
内核，所述内核沿轴向可活动地穿设于所述外鞘接头，所述卡固件设有与所述内核卡接配合的至少两个第一卡持部；
导管插座，所述导管插座与所述外鞘接头旋转配合，所述导管插座包括插座本体、以及连接于所述插座本体上的至少两个解锁件，所述插座本体设有避让所述内核的轴向通道，所述解锁件与所述第一卡持部对应设置，当所述导管插座往第一方向旋转时，所述解 锁件与所述第一卡持部抵接，所述第一卡持部与所述内核脱离；当所述导管插座往第二方向旋转时，所述解锁件与所述第一卡持部脱离，所述第一卡持部在自恢复作用力下与所述内核卡接；所述第一方向与所述第二方向相反。
在其中一个实施例中，所述解锁件为沿轴向延伸设置的推动柱、推动块或推动杆；和/或，所有所述第一卡持部绕所述外鞘接头的周向依次间隔布置，所有所述解锁件绕所述插座本体的周向依次间隔布置。
在其中一个实施例中，所述内核的外壁上设有用于与所述第一卡持部抵接配合的轴向限位凸台；和/或，所述内核的外壁上设有至少一个限位凹部，所述第一卡持部对应卡接于所述限位凹部中。
在其中一个实施例中，所有所述解锁件所围绕成的空腔直径与所述内核的外径相同；和/或，所述解锁件具有弹性部，所述弹性部与所述内核抵接。
在其中一个实施例中，所述插座本体上设有至少一个第二卡持部，所述外鞘接头上设有至少一个第三卡持部，所述第二卡持部与所述第三卡持部相互对应并卡接配合。
在其中一个实施例中，所述外鞘接头的外壁上设有与所述第二卡持部对应设置的滑槽，所述滑槽包括相连通的第一槽段和第二槽段；所述第一槽段沿所述外鞘接头的轴向延伸且延伸至所述外鞘接头的面向所述导管插座的端面；所述第二槽段沿所述外鞘接头的周向延伸且延伸至所述第三卡持部。
在其中一个实施例中，所述卡固件包括卡接连接于所述外鞘接头的内壁上的座体，所述第一卡持部与所述座体相连。
在其中一个实施例中，所述座体上设有至少一个第四卡持部，所述外鞘接头设有与所述第四卡持部对应卡接配合的第五卡持部；和/或，所述座体的外壁上设有沿轴向延伸设置的至少一个第一导向部，所述外鞘接头的内壁上设有与所述第一导向部相互滑动配合的第二导向部。
在其中一个实施例中，所述内核设有射频端子；所述超声成像导管组件还包括导管端子，所述导管端子与所述内核可拆卸地卡接相连，所述导管端子设有电连接部，所述电连接部与所述射频端子通过插接的方式电性连接。
在其中一个实施例中，所述超声成像导管组件还包括设置于所述外鞘接头上的电子标签，以及设置于所述导管插座上的读取装置。
一种超声成像系统，所述超声成像系统包括所述的超声成像导管组件。
上述的超声成像系统及超声成像导管组件，在将成像导管与导管插座进行组装装配 时，使外鞘接头与导管插座两者相互插接并旋转，解锁件能相应驱动第一卡持部张开以松开内核。由于第一卡持部松开内核，插座本体设有避让内核的轴向通道，这样能带动内核沿轴向回撤和/或周向方向任意角度自转，使得能实现获取到血管内壁全方位的图像信息。相对于现有技术的组装方式，整体结构更加简单，能提升工作效率，同时降低了生产组装成本，生产组装工艺简单，生产组装工艺稳定，利于大批量生产。另外，在成像导管与导管插座进行组装之前，由于第一卡持部卡接固定内核，可以防止意外情况从外鞘接头中拔出内核，安全有效。
附图说明
构成本申请的一部分的附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例的超声成像导管组件的结构示意图；
图2为图1所示结构中的成像导管的另一视角结构示意图；
图3为图2所示结构中的分解结构示意图；
图4为本申请一实施例的卡固件的第一卡持部卡接固定于内核上的结构示意图；
图5为本申请一实施例的卡固件、内核、导管插座相互配合的一视角结构部示意图。
10、成像导管；11、外鞘接头；111、第三卡持部；112、第一槽段；113、第二槽段；114、第五卡持部；1141、卡持孔；1142、凹槽；115、第二导向部；116、安装孔；12、卡固件；121、第一卡持部；122、座体；1221、第四卡持部；1222、第一导向部；13、内核；131、射频端子；132、轴向限位凸台；133、限位凹部；134、分体壳；135、第六卡持部；20、导管插座；21、插座本体；211、轴向通道；212、第二卡持部；22、解锁件；221、第一壁面；222、第二壁面；223、第三壁面；30、导管端子；31、第七卡持部；41、电子标签；42、读取装置。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具 体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，仍需要说明的是，近端是指器械或部件靠近操作者的一端，远端是指器械或部件远离操作者的一端；轴向是指平行于器械或部件的远端与近端中心连线的方向，径向是指垂直于轴向的方向，周向是指环绕轴向的方向。
参阅图1至图3，图1示出了本申请一实施例的超声成像导管组件的结构示意图，图2示出了图1所示结构中的成像导管的另一视角结构示意图，图3示出了图2所示结构中的分解结构示意图，图4示出了本申请一实施例的卡固件的第一卡持部卡接固定于内核上的结构示意图，图5示出了本申请一实施例的卡固件、内核、导管插座相互配合的一视角结构部示意图。本申请一实施例提供的一种超声成像导管组件，超声成像导管组件包括：成像导管10、内核13、导管插座20、以及导管端子30。成像导管10包括外鞘接头11、连接于外鞘接头11内部的卡固件12。内核13沿轴向可活动地穿设于外鞘接头11。卡固件12设有与内核13卡接配合的至少两个第一卡持部121。具体而言，内核13设有射频端子131。导管插座20与外鞘接头11旋转配合，导管插座20包括插座本体21、以及连接于插座本体21上的至少两个解锁件22。插座本体21设有避让内核13的轴向通道211，解锁件22与第一卡持部121对应设置，当导管插座20旋转时，解锁件22与第一卡持部121接触或者脱离，使得第一卡持部121与内核13脱离或者卡接。当导管插座20往第一方向旋转时，解锁件22与第一卡持部121抵接，第一卡持部121与内核13脱离；当导管插座20往第二方向旋转时，解锁件22与第一卡持部121脱离，第一卡持部121在自恢复作用力下与内核13卡接。其中，第一方向与第二方向相反，比如，第一方向为顺时针方向，则第二方向为逆时针方向。
上述的超声成像导管组件，在将成像导管10与导管插座20进行组装装配时，使外鞘接头11与导管插座20两者相互插接并旋转，解锁件22能相应驱动第一卡持部121张开以松开内核13。由于第一卡持部121松开内核13，插座本体21设有避让内核13的轴向通道211，这样能带动内核13沿轴向回撤和/或沿周向方向任意角度自转，使得能实现获取到血管内壁全方位的图像信息。相对于相关技术的组装方式，整体结构更加简单，能提升工作效率，同时降低了生产组装成本，生产组装工艺简单，生产组装工艺稳定，利于大批量生产。另外，在成像导管10与导管插座20进行组装之前，由于第一卡持部121卡接固定内核13，可以防止意外情况从外鞘接头11中拔出内核13，安全有效。
在一个具体实施例中，导管端子30与内核13可拆卸地卡接相连，导管端子30设有电连接部(图中未示出)，电连接部与射频端子131通过插接的方式电性连接。可选地，该电连接部与射频端子131中的其中一个为公头，另一个为母头，通过公头与母头相互插接实现电性连接。如此，在将成像导管10与导管插座20进行组装装配时，还沿轴向插入导管端子30使导管端子30与内核13卡接相连，电连接部与内核13内部的射频端子131通过插接的方式电性连接。导管端子30与内核13卡接相连，这样导管端子30能带动内核13沿轴向回撤和/或沿周向方向任意角度自转，使得能实现获取到血管内壁全方位的图像信息。
需要说明的是，该“卡固件12”可以为“外鞘接头11的一部分”，即“卡固件12”与“外鞘接头11的其他部分”一体成型制造；也可以与“外鞘接头11的其他部分”可分离的一个独立的构件，即“卡固件12”可以独立制造，再与“外鞘接头11的其他部分”组合成一个整体。
在一实施例中，第一卡持部121包括但不限于为卡爪、卡扣、卡头、卡销、卡持块、夹持臂、卡条等等各种结构形式，具体可以根据实际需求灵活调整与设置。
需要说明的是，解锁件22的数量等于第一卡持部121的数量，使得在解锁件22的驱动下，能实现各个第一卡持部121都松开内核13，内核13被卡固件12松开后便能在导管端子30的驱动下回撤和/或旋转动作。本实施例中，解锁件22的数量与第一卡持部121的数量保持一致，在实际工作过程中，当导管插座20往第一方向旋转时，多个解锁件22分别与多个第一卡持部121对应并同步抵接，第一卡持部121与内核13脱离；当导管插座20往第二方向旋转时，多个解锁件22分别与多个第一卡持部121同步脱离，第一卡持部121在自恢复作用力下与内核13卡接。
请参阅图5，在一个实施例中，解锁件22为沿轴向延伸设置的推动柱、推动块或推动杆。
请参阅图3至图5。解锁件22可以是在沿轴向插入到成像导管10内部后，通过驱动成像导管10与导管插座20两者相对转动，在转动过程中，抵压推开与其对应的第一卡持部121，使第一卡持部121张开并松开内核13，且第一卡持部121与解锁件22保持抵接。
在一实施例中，为了能便于将与其对应的第一卡持部121推开，解锁件22包括面向于内核13的第一壁面221，与第一壁面221相邻设置的第二壁面222、第三壁面223。第二壁面222和/或第三壁面223与第一壁面221呈锐角设置。如此，第二壁面222和/或第三壁面223与第一壁面221配合形成尖角，尖角有利于将第一卡持部121推开。
请参阅图3至图5，在一个实施例中，所有第一卡持部121绕外鞘接头11的周向依次 间隔布置，所有解锁件22绕插座本体21的周向依次间隔布置。如此，所有第一卡持部121同步卡持内核13，能实现稳固地固定住内核13。相应地，所有解锁件22能实现与其对应的第一卡持部121的同步张开松开内核13。
请参阅图3至图5，在一个实施例中，内核13的外壁上设有用于与第一卡持部121抵接配合的轴向限位凸台132，轴向限位凸台132具体例如环绕内核13外壁的周向设置，如此，轴向限位凸台132通过抵接第一卡持部121，防止内核13沿轴向移动。
请参阅图3至图5，在一个实施例中，内核13的外壁上设有至少一个限位凹部133，第一卡持部121对应卡接于限位凹部133中。如此，当导管插座20往第一方向旋转时，解锁件22与第一卡持部121抵接，第一卡持部121与内核13脱离，也即第一卡持部121相应从限位凹部133中脱离出来；当导管插座20往第二方向旋转时，解锁件22与第一卡持部121脱离，第一卡持部121在自恢复作用力与内核13卡接，也即第一卡持部121对应卡接于限位凹部133中时，卡固件12能防止内核13周向转动。此外，内核13的外壁上设有的限位凹部133能便于在解锁件22与第一卡持部121抵接时第一卡持部121与内核13相互脱离。
进一步地，第一卡持部121的远离导管插座20的端部具有弹性，便于第一卡持部121与解锁件22脱离时，第一卡持部能够恢复至初始状态，即夹持住内核。
在一个实施例中，所有解锁件22所围绕成的空腔直径与内核13的外径相同；和/或，解锁件22具有弹性部，弹性部与内核13抵接。如此，解锁件22在解锁松开内核13之前，能实现稳固地夹持固定内核13。
请参阅图3至图5，在一个实施例中，当解锁件22驱动对应的第一卡持部121张开并松开内核13时，导管插座20与外鞘接头11两者固定卡接。如此，解锁件22驱动对应的第一卡持部121张开并松开内核13时，内核13便能回撤与旋转，同时，由于通过导管插座20固定卡接外鞘接头11，使外鞘接头11稳固于导管插座20上，提高了外鞘接头11的稳固性，不会受到内核13运动带来的干扰。
请参阅图3至图5，在一个实施例中，插座本体21上设有至少一个第二卡持部212，外鞘接头11上设有至少一个第三卡持部111。第二卡持部212与第三卡持部111相互对应并卡接配合。如此，插座本体21通过第二卡持部212与第三卡持部111相互卡接固定的方式与外鞘接头11相互固定连接，能实现快速组装，且连接稳固效果好。
请参阅图3至图5，在一个实施例中，第二卡持部212例如为设置于插座本体21内壁上的凸块，第三卡持部111例如为设置于外鞘接头11外壁上的卡槽或夹块；或者，第 二卡持部212例如为设置于插座本体21上的卡槽或夹块，第三卡持部111例如为设置于外鞘接头11外壁上的凸块。
请参阅图3至图5，在一个实施例中，外鞘接头11的外壁上设有与第二卡持部212对应设置的滑槽，滑槽包括相连通的第一槽段112和第二槽段113；第一槽段112沿外鞘接头11的轴向延伸且延伸至外鞘接头11的面向导管插座20的端面；第二槽段113沿外鞘接头11的周向延伸且延伸至第三卡持部111。如此，在实际组装过程中，导管插座20与成像导管10两者相互插接的同时，第二卡持部212顺势进入到第一槽段112内，并沿第一槽段112移动到第二槽段113，可见，第一槽段112能起到轴向导向作用，并能起到校准导管插座20与成像导管10两者位置的作用，防止出现角度偏转；然后，第二卡持部212移动到第二槽段113时，驱动成像导管10与导管插座20两者相对转动，一方面，解锁件22能转动推开第一卡持部121，另一方面，第二卡持部212移动到第三卡持部111与第三卡持部111固定卡接在一起，实现导管插座20固定卡接外鞘接头11。
请参阅图3至图5，可选地，内核13被导管端子30撤出外鞘接头11后，需要分开外鞘接头11与导管插座20时，通过反方向转动导管插座20，便能实现外鞘接头11与导管插座20分开。
请参阅图3至图5，在一个实施例中，第二卡持部212设为多个，第三卡持部111设为多个，第二卡持部212与第三卡持部111对应设置。如此，通过多个第三卡持部111分别对应与多个第二卡持部212卡接固定，能实现导管插座20稳定地固定卡接外鞘接头11。
请参阅图3，在一个实施例中，卡固件12包括卡接连接于外鞘接头11内壁上的座体122，第一卡持部121与座体122相连。如此，卡固件12在与外鞘接头11生产时分别加工制造，然后通过卡接的方式组装在一起，便于加工，且组装效率较高，适合于批量化生产。
请参阅图2与图3，在一个实施例中，座体122上设有至少一个第四卡持部1221，外鞘接头11设有与第四卡持部1221对应卡接配合的第五卡持部114。
请参阅图2与图3，具体而言，第四卡持部1221设为多个，多个第四卡持部1221例如等间隔地或不等间隔地布置于座体122上。相应地，第五卡持部114设为多个。如此，外鞘接头11通过多个第五卡持部114分别与卡固件12的多个第四卡持部1221相互卡接固定，使得卡固件12稳定地固定于外鞘接头11上。
请参阅图2与图3，在一个实施例中，第四卡持部1221包括但不限于为卡爪、卡扣、卡头、卡销、卡持块、夹持臂或卡条等等各种结构形式，具体可以根据实际需求灵活调整 与设置。
请参阅图2与图3，在一个实施例中，第五卡持部114包括形成于外鞘接头11内壁上的卡持孔1141，以及与卡持孔1141相连通的凹槽1142，第四卡持部1221的主体位于凹槽1142中，第四卡持部1221的头部卡接于卡持孔1141中。如此，第五卡持部114与第四卡持部1221结合紧密，能实现卡固件12稳定地固定于外鞘接头11上。
请参阅图2与图3，在一个实施例中，座体122外壁上设有沿轴向延伸设置的至少一个第一导向部1222，外鞘接头11的内壁上设有与第一导向部1222相互滑动配合的第二导向部115。如此，卡固件12与外鞘接头11相互组装的过程中，需要使得第一导向部1222与第二导向部115相互对位并组合在一起，第一导向部1222与第二导向部115相互滑动配合，组装快速，组装后结合稳定性较好。
在一实施例中，第一导向部1222设为导向块，第二导向部115设为与第一导向部1222相适应的导向槽。或者，第一导向部1222设为导向槽，第二导向部115设为与第一导向部1222相适应的导向块。
请参阅图2与图3，在一个实施例中，内核13包括相互可拆卸连接的两个分体壳134。射频端子131位于两个分体壳134围合形成的区域中。组装过程中，将射频端子131固定地装设于两个分体壳134围合形成的区域中，然后再将两个分体壳134相互连接固定。
在一个实施例中，两个分体壳134的连接方式包括但不限于为卡接相连，通过螺钉、销钉、铆钉等等紧固件相连。本实施例中，两个分体壳134相互卡接相连，组装效率相对更高。
请参阅图1与图3，在一个实施例中，超声成像导管组件还包括设置于外鞘接头11上的电子标签41，以及设置于导管插座20上的读取装置42。当导管插座20与成像导管10相互插接配合时，读取装置42能够感应电子标签41。如此，当导管插座20与成像导管10相互插接配合时，由于读取器靠近于无线射频识别器，从而能感应到无线射频识别器所存储的信息，即能得到成像导管10的相关信息。具体而言，读取装置42具体例如为无线射频识别器(Radio Frequency Identification，简写为RFID)。
在一实施例中，靠近于导管插座20的外鞘接头11的一端上设有安装孔116，电子标签41设置于安装孔116内部，并采用密封胶进行密封。具体而言，电子标签41设置于面向于导管插座20的外鞘接头11的一端端面上，从而能便于被无线射频识别器感应到。
请再参阅图1，内核13上还设有至少一个第六卡持部135，导管端子30上设有与第六卡持部135对应卡接配合的第七卡持部31。在插接装配过程中，导管端子30通过第七 卡持部31与第六卡持部135相互卡接实现与内核13连接固定，组装效率较高。
在一个实施例中，一种超声成像系统，超声成像系统包括上述任一实施例的超声成像导管组件。
上述的超声成像系统，在将成像导管10、导管插座20进行组装装配时，使外鞘接头11与导管插座20两者相互插接并旋转，解锁件22能相应驱动第一卡持部121张开以松开内核13。由于第一卡持部121松开内核13，插座本体21设有避让内核13的轴向通道211，导管端子30与内核13卡接相连，这样导管端子30能带动内核13沿轴向回撤和/或周向方向任意角度自转，使得能实现获取到血管内壁全方位的图像信息。相对于相关技术的组装方式，整体结构更加简单，能提升工作效率，同时降低了生产组装成本，生产组装工艺简单，生产组装工艺稳定，利于大批量生产。另外，在成像导管10、导管插座20进行组装之前，由于第一卡持部121卡接固定内核13，可以防止意外情况从外鞘接头11中拔出内核13，安全有效。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”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申请和简化描述，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申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机 械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。

Claims (15)

  1. 一种超声成像导管组件，包括：
    成像导管，所述成像导管包括外鞘接头、设于所述外鞘接头内部的卡固件；
    内核，所述内核沿轴向可活动地穿设于所述外鞘接头，所述卡固件设有与所述内核卡接配合的至少两个第一卡持部；
    导管插座，所述导管插座与所述外鞘接头旋转配合，所述导管插座包括插座本体、以及连接于所述插座本体上的至少两个解锁件，所述插座本体设有避让所述内核的轴向通道，所述解锁件与所述第一卡持部对应设置，当所述导管插座往第一方向旋转时，所述解锁件与所述第一卡持部抵接，所述第一卡持部与所述内核脱离；当所述导管插座往第二方向旋转时，所述解锁件与所述第一卡持部脱离，所述第一卡持部在自恢复作用力下与所述内核卡接；所述第一方向与所述第二方向相反。
  2. 根据权利要求1所述的超声成像导管组件，其中，所述解锁件为沿轴向延伸设置的推动柱、推动块或推动杆；和/或，所有所述第一卡持部绕所述外鞘接头的周向依次间隔布置，所有所述解锁件绕所述插座本体的周向依次间隔布置。
  3. 根据权利要求1所述的超声成像导管组件，其中，所述内核的外壁上设有用于与所述第一卡持部抵接配合的轴向限位凸台；和/或，所述内核的外壁上设有至少一个限位凹部，所述第一卡持部对应卡接于所述限位凹部中。
  4. 根据权利要求2所述的超声成像导管组件，其中，所有所述解锁件所围绕成的空腔直径与所述内核的外径相同；和/或，所述解锁件具有弹性部，所述弹性部与所述内核抵接。
  5. 根据权利要求1所述的超声成像导管组件，其中，所述插座本体上设有至少一个第二卡持部，所述外鞘接头上设有至少一个第三卡持部，所述第二卡持部与所述第三卡持部相互对应并卡接配合。
  6. 根据权利要求5所述的超声成像导管组件，其中，所述外鞘接头的外壁上设有与所述第二卡持部对应设置的滑槽，所述滑槽包括相连通的第一槽段和第二槽段；所述第一槽段沿所述外鞘接头的轴向延伸且延伸至所述外鞘接头的面向所述导管插座的端面；所述第二槽段沿所述外鞘接头的周向延伸且延伸至所述第三卡持部。
  7. 根据权利要求1所述的超声成像导管组件，其中，所述卡固件包括卡接连接于所述外鞘接头的内壁上的座体，所述第一卡持部与所述座体相连。
  8. 根据权利要求7所述的超声成像导管组件，其中，所述座体上设有至少一个第四 卡持部，所述外鞘接头设有与所述第四卡持部对应卡接配合的第五卡持部；和/或，所述座体的外壁上设有沿轴向延伸设置的至少一个第一导向部，所述外鞘接头的内壁上设有与所述第一导向部相互滑动配合的第二导向部。
  9. 根据权利要求1所述的超声成像导管组件，其中，所述内核设有射频端子；所述超声成像导管组件还包括导管端子，所述导管端子与所述内核可拆卸地卡接相连，所述导管端子设有电连接部，所述电连接部与所述射频端子通过插接的方式电性连接。
  10. 根据权利要求9所述的超声成像导管组件，其中，所述电连接部与所述射频端子中的其中一个为公头，另一个为母头，通过所述公头与所述母头相互插接实现电性连接。
  11. 根据权利要求9所述的超声成像导管组件，其中，所述导管端子沿轴向被插入以与所述内核可拆卸地卡接相连，从而能带动所述内核沿轴向回撤和/或沿周向方向任意角度自转。
  12. 根据权利要求1所述的超声成像导管组件，其中，所述卡固件与所述外鞘接头一体成型或为分离的。
  13. 根据权利要求1所述的超声成像导管组件，其中，所述解锁件的数量等于所述第一卡持部的数量，以驱动每个所述第一卡持部与所述内核卡接或脱离。
  14. 根据权利要求1至13任一项所述的超声成像导管组件，还包括设置于所述外鞘接头上的电子标签，以及设置于所述导管插座上的读取装置。
  15. 一种超声成像系统，包括如权利要求1至14任一项所述的超声成像导管组件。
PCT/CN2024/071545 2023-02-22 2024-01-10 超声成像系统及超声成像导管组件 WO2024174764A1 (zh)

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