WO2023125356A1 - Biopsy device - Google Patents

Biopsy device Download PDF

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Publication number
WO2023125356A1
WO2023125356A1 PCT/CN2022/141771 CN2022141771W WO2023125356A1 WO 2023125356 A1 WO2023125356 A1 WO 2023125356A1 CN 2022141771 W CN2022141771 W CN 2022141771W WO 2023125356 A1 WO2023125356 A1 WO 2023125356A1
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WO
WIPO (PCT)
Prior art keywords
needle
needle tube
assembly
distal end
biopsy device
Prior art date
Application number
PCT/CN2022/141771
Other languages
French (fr)
Chinese (zh)
Inventor
李恒
夏清松
胡龙虎
李安宁
Original Assignee
深圳市先健呼吸科技有限公司
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 深圳市先健呼吸科技有限公司 filed Critical 深圳市先健呼吸科技有限公司
Publication of WO2023125356A1 publication Critical patent/WO2023125356A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/0283Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3494Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06Measuring instruments not otherwise provided for
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B2017/3454Details of tips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06Measuring instruments not otherwise provided for
    • A61B2090/064Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension

Definitions

  • Tissue tumor is a disease that seriously endangers human health and life. In recent years, the incidence rate has gradually increased, and the age of onset has gradually decreased. Therefore, early and correct diagnosis of tissue tumor is of great significance. Correct diagnosis requires a combination of clinical, imaging, and pathology. Among them, pathological diagnosis plays a key role in the selection of treatment options, and biopsy is the main way to obtain tissue samples.
  • the biopsy device 100 includes a housing 110 , a suction assembly 120 , an advancing assembly 130 and a sensing assembly 140 .
  • the suction assembly 120 includes a needle tube 121 movable in the axial direction, and the needle tube 121 can pass through the casing 110 .
  • the distal end of the needle tube 121 can protrude from the distal end of the housing 110 to penetrate into the tissue.
  • the needle tube 121 is hollow, so that the target tissue can enter the negative pressure device (not shown) connected with the biopsy device 100 through the needle tube 121 .
  • Part of the sensing component 140 can be connected with the advancing component 130 and the needle tube 121, so that when the pushing component 130 drives the needle tube 121 to advance toward the target tissue, the sensing component 140 can detect and feedback the resistance on the needle tube 121.
  • the working principle of the biopsy device 100 is roughly as follows:
  • the biopsy device 100 has at least the following beneficial effects:
  • the internal thread 1331 can be provided on the peripheral wall of the pushing member 132
  • the external thread 1332 can be provided on the inner wall of the first rotating member 131 .
  • the first rotating member 131 can be sleeved on the housing 110
  • the external thread 1332 can pass through the housing 110 in the radial direction and be screwed with the internal thread 1331 .
  • the induction element 141 includes a fixing portion 1411 , an elastic portion 1412 and a through hole 1415 passing through the fixing portion 1411 and the elastic portion 1412 .
  • the fixing part 1411 can be fixedly connected with the pushing part 132 , and can be fixed by injecting glue on the contact surface between the fixing part 1411 and the pushing part 132 .
  • the elastic part 1412 can be disposed at the distal end of the fixing part 1411 , and the elastic part 1412 is fixedly connected to a part of the edge of the fixing part 1411 .
  • the proximal end of the needle tube 121 can be fixedly connected with the elastic part 1412 .
  • the protruding part 1211 of the needle tube 121 is accommodated in the through hole 1415, and the proximal end of the protruding part 1211 is closer to the proximal end of the fixed part 1411 than the gap 1417, thereby preventing blood or tissue from entering the gap 1417 during the suction process, thereby improving the induction Part 141 induction efficiency.
  • the fixing part 1411 and the pushing member 132 may be connected together in various suitable ways such as screw connection, clip connection, etc., and are not limited to the glue bonding in this embodiment.
  • the distal end of the pushing member 132 may be provided with a positioning groove 1321 .
  • the fixing part 1411 can be accommodated in the positioning groove 1321 to prevent the fixing part 1411 from being displaced in the radial direction when subjected to axial pressure, and improve the detection accuracy of the sensing element 141 .
  • the proximal end of the fixing portion 1411 can be fixedly connected to the bottom of the positioning groove 1321 .
  • the proximal end surface of the fixing part 1411 can be provided with a glue injection groove 1413 , and the adhesive can be injected into the glue injection groove 1413 .
  • the pushing member 132 can be provided with a first glue injection port 1322 arranged in the radial direction, and the first glue injection port 1322 can communicate with the positioning groove 1321 .
  • the first glue injection port 1322 can be set corresponding to the joint between the proximal end surface of the fixing part 1411 and the groove bottom of the positioning groove 1321, so that after the proximal end surface of the fixing part 1411 contacts the groove bottom of the positioning groove 1321, the adhesive can be released from the first groove.
  • a glue injection port 1322 injects into the positioning groove 1321 , so that the fixing part 1411 and the pushing member 132 are better fixedly connected.
  • the biopsy device 100 further includes a bending assembly 150 for bending the distal end of the needle sheath 122 so that the distal end of the needle sheath 122 can be aligned with the aforementioned target tissue. And, also can adjust the bending degree of needle sheath 122 far-ends according to the specific position of the target tissue of bronchi.
  • the bending adjustment assembly 150 further includes a second rotating member 152 and a driving member 153 .
  • the pulling member 153 can be located in the housing 110 and fixedly connected with the proximal end of the pulling member 151 .
  • the second rotating member 152 can be sleeved on the housing 110 and connected to the driving member 153 in a rotating manner.
  • the second rotating member 152 and the driving member 153 rotate relative to each other, the second rotating member 152 can drive the driving member 153 to move axially.
  • the pulling member 153 moves toward the proximal end of the housing 110 , it can drive the pulling member 151 to pull the distal end of the needle sheath 122 to bend.
  • the placing groove 1531 can be a cylindrical groove, and correspondingly, the pressing member 154 can be cylindrical, so that the pressing member 154 can rotate relative to the driving member 153 .
  • the pulling member 153 is provided with a through hole 1535 for the pulling member 151 to pass through, and the through hole 1535 can pass through the proximal end surface and the distal end surface of the pulling member 153 in the axial direction.
  • the pressing part 154 may be provided with a through hole 1541 for the traction part 151 to pass through, and the through hole 1541 may pass through the side of the pressing part 154 along the radial direction of the pressing part 154 .
  • An auxiliary groove 1542 is provided on the end of the pressing member 154 towards the outside of the housing 110, so that after the pressing member 154 is inserted into the placement groove 1531 of the driving member 153, it can be inserted into the auxiliary groove 1542 by means of a screwdriver, and the screwdriver turns to drive the pressing member. 154 turns.
  • the auxiliary groove 1542 may be a slot or a cross groove. It can be understood that the placement groove 1531 can also be arranged in other directions, and is not limited to this embodiment. For example, the upper surface of part of the pulling member 153 in FIG. The via holes are connected, and the traction piece can pass through the via hole on the pressing piece accommodated in the placing groove, so as to realize the connection between the traction piece and the pulling piece.
  • the pressing member 154 is inserted into the placement groove 1531 , and the through hole 1541 on the pressing member 154 is connected with the through hole 1535 on the driving member 153 .
  • the proximal end of the pulling member 151 is passed through the through hole 1541 on the pulling member 153 and the through hole 1541 on the pressing member 154 and protrudes from the side of the pulling member 153 toward the proximal end of the casing 110 .
  • the pressing part 154 rotates so that the pulling part 151 is wound on the pressing part 154 so that the proximal end of the pulling part 151 is fixedly connected with the pulling part 153 .
  • a thread structure (not shown) similar to the thread structure 155 can be provided between the pressing member 154 and the pulling member 153 .
  • the pressing member 154 and the pulling member 153 can be fixedly connected through the similar thread structure.
  • a similar thread structure includes an internal thread and an external thread adapted to the internal thread.
  • the internal thread can be located in the placement groove 1531 and be provided on the inner wall of the driving member 153
  • the external thread can be provided on the peripheral wall of the pressing member 154 .
  • the internal thread can be provided on the peripheral wall of the pressing member 154
  • the external thread can be located in the placement groove 1531 and provided on the inner wall of the driving member 153 .
  • the gap between the pressing member 154 and the pulling member 153 can be filled with glue, so that the proximal end of the pulling member 151 wound on the pressing member 154 is connected with the pushing member 132 more solid.
  • the pulling member 153 may be provided with a second glue injection port 1532 arranged in the radial direction, and the second glue injection port 1532 may communicate with the placement groove 1531 (see FIG. 4 ). After the proximal end of the pulling member 151 is wrapped around the pressing member 154 , the adhesive is injected into the placing groove 1531 from the second injection port 1532 , so that the proximal end of the drawing member 151 , the pressing member 154 and the pulling member 153 are fixedly connected.
  • the length of the proximal end of the traction member 151 passing through the pressing member 154 in the axial direction is greater than or equal to half the circumference of the side wall of the pressing member 154, so that the pulling member can be pulled after the pressing member 154 rotates.
  • the proximal end of 151 will not disengage from the pressing piece 154 and can be firmly wound on the pressing piece 154 .
  • a sealing structure 160 may be provided between the advancing assembly 130 and the bending assembly 150 to prevent tissue cells, liquid, etc. from entering the housing 110 from the proximal end of the needle sheath 122 , effectively improving the use efficiency of the biopsy device 100 .
  • the sealing structure 160 includes a first fixing part 161 , a second fixing part 162 , an extrusion part 164 and a sealing part 165 .
  • the first fixing part 161 can be disposed on the proximal end of the needle sheath 122 . Both the first fixing part 161 and the second fixing part 162 are fixedly connected with the housing 110 . Both the first fixing part 161 and the second fixing part 162 can be block-shaped.
  • a second connecting member 163 may be provided between the first fixing member 161 and the second fixing member 162, and the two ends of the second connecting member 163 are respectively connected to the proximal end of the first fixing member 161 and the distal end of the second fixing member 162.
  • the second connecting member 163 may be a tubular structure disposed along the axial direction. That is, the propulsion assembly 130 is disposed near the proximal end of the housing 110 , and the bending adjustment assembly 150 is disposed near the distal end of the housing 110 . The proximal end of the advancing assembly 130 close to the housing 110 can facilitate the operator to control the needle insertion.
  • the bend adjustment assembly 150 is close to the distal end of the housing 110 so as to shorten the distance between the bend adjustment assembly 150 and the distal end of the needle sheath 122 and improve the bend adjustment efficiency.
  • the distal end of the needle tube 121 can pass through the extruding part 164 , the sealing part 165 , the second fixing part 162 , the second connecting part 163 and the first fixing part 161 in order and then enter the needle sheath 122 .
  • the extruding part 164 moves toward the groove bottom of the matching groove 1621, the extruding part 164 can cooperate with the second fixing part 162 to extrude the sealing part 165, so that the sealing part 165 can deform and increase in the radial direction, so as to eliminate the needle tube 121 and the second fixing part 162 in the radial direction, to prevent tissue cells, liquids, etc.
  • the effect of infiltration into the housing 110 at the gap is not limited to the gap.
  • a thread structure 166 may be provided between the second fixing part 162 and the extrusion part 164 .
  • the second fixing part 162 and the extruding part 164 can be fixedly connected through a thread structure 166 .
  • the thread structure 166 includes an internal thread 1662 and an external thread 1661 adapted to the internal thread 1662 .
  • the internal thread 1662 can be located in the matching groove 1621 and be provided on the inner wall of the second fixing part 162
  • the external thread 1661 can be provided on the peripheral wall of the extrusion part 164 .
  • the internal thread 1662 can be provided on the peripheral wall of the extruded part 164
  • the external thread 1661 can be located in the matching groove 1621 and provided on the inner wall of the second fixing part 162 .
  • the first rotating member 131 can also be omitted.
  • the pushing member 132 can protrude from the housing 110 and move along the longitudinal center axis parallel to the housing 110, it can also push the needle tube. 121 role.
  • the second rotating member 152 can also be omitted, as long as the driving member 153 can protrude from the housing 110 and move along the longitudinal center axis parallel to the housing 110, the needle sleeve can also be adjusted 122 role.
  • the biopsy device 100 provided by this embodiment is basically the same as that of the first embodiment.
  • the needle tube 121 of the suction assembly 120 can move in the axial direction and pass through the casing 110 .
  • the needle sheath 122 passes through the distal end of the housing 110 , and the distal end of the needle sheath 122 protrudes from the distal end of the housing 110 .
  • At least part of the needle tube 121 is accommodated in the needle sheath 122 , and the needle tube 121 is movably passed through the needle sheath 122 along the axial direction.
  • the needle core 123 is axially passed through the needle tube 121 and fills up the inner cavity of the needle tube 121 .
  • the sensing element 141 is located in the casing 110 and is disposed between the proximal end of the needle tube 121 and the pushing element 132 .
  • the display unit 142 is disposed outside the casing 110 and is electrically connected to the sensing element 141 .
  • the pushing member 132 of the pushing assembly 130 is located in the first rotating member 131 , and the pushing member 132 is rotationally connected with the first rotating member 131 , and the needle tube 121 is connected with the pushing member 132 .
  • the distal end of the pulling member 151 of the bending adjustment assembly 150 can pass through the tube wall of the needle sheath 122 and be fixed with the distal end of the needle sheath 122 .
  • the proximal end of the pulling member 151 can extend out of the needle sheath 122 from the tube wall of the needle sheath 122 and be located in the housing 110 .
  • the propulsion assembly 130 is disposed near the distal end of the housing 110
  • the bending adjustment assembly 150 is disposed near the proximal end of the housing 110 .
  • the propulsion assembly 130 is close to the far end of the housing 110 so that the operator can quickly and timely perceive the state of the display unit 142 and take corresponding actions in time.
  • the pulling member 153 can be sleeved on the first connecting member 134 and located between the proximal end of the casing 110 and the pushing member 132 .
  • the driving member 153 can move axially on the first connecting member 134 .
  • the proximal end of the pulling member 151 protrudes from the tube wall of the needle sheath 122, and passes through the through hole 1611 of the first fixing member 161, the through hole 1323 of the pushing member 132, and the distal end of the through hole 1535 of the pulling member 153 to enter the compression chamber. After the through hole 1541 of the tightening member 154, pass through the proximal end surface of the through hole 1535 of the pulling member 153, and then connect the pressing member 154.
  • the axial directions of these through holes are all parallel to the longitudinal central axis of the biopsy device 100, and are located on the same side of the longitudinal central axis of the biopsy device 100.
  • the biopsy device 100 provided by this embodiment is basically the same as that of the first embodiment.
  • the display unit 142 can be disposed at the proximal end of the first connecting member 134 . Since the operator is operating the biopsy device 100, the proximal end of the biopsy device 100, that is, the proximal end of the first connecting member 134 is facing the operator, so the display unit 142 is arranged at the proximal end of the first connecting member 134 to facilitate the operation of the operator.
  • the display of the display unit 142 is observed, and the needle insertion of the biopsy device 100 is controlled according to the display of the display unit 142 to improve biopsy efficiency.
  • the display unit 142 may include indicators capable of displaying different colors. Understandably, when the sensor 141 detects that the resistance of the needle tube 121 exceeds a preset threshold, the indicator light will display red. When the sensor 141 detects that the resistance of the needle tube 121 is lower than a preset threshold, the indicator light will turn green.
  • the indicator light can also display other colors besides red.
  • the indicator light can display other colors except green.
  • the color of the indicator light can be different from that when the sensor 141 detects that the resistance on the needle tube 121 exceeds the preset threshold. That is, different colors displayed by the indicator light prompt the operator to puncture the bronchial wall by the needle tube 121 .

Abstract

A biopsy device (100), comprising a housing (110), a suction assembly (120), a propulsion assembly (130) and a sensing assembly (140). The suction assembly (120) comprises a needle (121) capable of moving in an axial direction, wherein the needle (121) passes through the housing (110), and a distal end of the needle (121) can extend out from a distal end of the housing (110). Part of the sensing assembly (140) is connected to the propulsion assembly (130) and the needle (121), so that in the process of the propulsion assembly (130) propelling the needle (121) towards target tissue, the sensing assembly (140) can measure and feed back the magnitude of a pressure borne by the needle (121). By means of the biopsy device (100), in the process of the propulsion assembly (130) propelling the needle (121) towards target tissue, the sensing assembly (140) can measure and feed back the resistance borne by the needle (121), and an operator thus can know the current puncture condition of the needle (121) according to the feedback from the sensing assembly (140), thereby improving surgical precision and safety.

Description

活检装置biopsy device 技术领域technical field
本发明属于医疗器械领域,尤其涉及一种活检装置。The invention belongs to the field of medical instruments, in particular to a biopsy device.
背景技术Background technique
组织肿瘤是严重危害人类健康及生命的疾病,近年来发病率逐渐上升,且发病年龄逐渐下降,因此,对组织肿瘤进行尽早正确的诊断有着重要的意义。正确的诊断需要临床、影像及病理三结合,其中,病理诊断对治疗方案的选择起着关键作用,穿刺活检是获取组织样本的主要途径。Tissue tumor is a disease that seriously endangers human health and life. In recent years, the incidence rate has gradually increased, and the age of onset has gradually decreased. Therefore, early and correct diagnosis of tissue tumor is of great significance. Correct diagnosis requires a combination of clinical, imaging, and pathology. Among them, pathological diagnosis plays a key role in the selection of treatment options, and biopsy is the main way to obtain tissue samples.
病人的任何部位的穿刺活检,如支气管、前列腺、肾脏、肝脏、脾脏、乳腺等组织,手术过程中使用的主要取样器械为活检针,作为合格的活检针,最基本的要求是定位准确,手术安全,从而可以使手术能够成功的进行,对病人及手术过程中医护人员的安全获得保障。Puncture biopsy of any part of the patient, such as bronchi, prostate, kidney, liver, spleen, breast and other tissues, the main sampling instrument used in the operation is a biopsy needle. As a qualified biopsy needle, the most basic requirement is accurate positioning. Safety, so that the operation can be carried out successfully, and the safety of the patient and the medical staff during the operation is guaranteed.
活检装置是目前常用的穿刺活检用设备。传统活检装置进针仅靠内窥镜监控,很难观测到活检装置的针管是否已经刺进目标组织内,仅能凭操作人员的感觉以及经验来判断,对操作人员要求较高,且存在一定的进针失败概率,安全性不佳。A biopsy device is currently the most commonly used device for needle biopsy. The needle insertion of traditional biopsy devices is only monitored by the endoscope. It is difficult to observe whether the needle tube of the biopsy device has penetrated into the target tissue. It can only be judged by the operator's feeling and experience. The probability of needle failure is high, and the safety is not good.
发明内容Contents of the invention
本发明的目的在于提供一种活检装置,旨在解决现有技术的活检装置对操作人员的要求过高、且安全性不佳的技术问题。The purpose of the present invention is to provide a biopsy device, aiming to solve the technical problems of the prior art biopsy device which have too high requirements on the operator and poor safety.
活检装置包括壳体、抽吸组件、推进组件和感应组件,所述抽吸组件包括可沿轴向移动的针管,所述针管穿设于所述壳体且远端能从所述壳体的远端伸 出,所述感应组件与所述推进组件、所述针管连接,以在所述推进组件带动所述针管向目标组织推进的过程中,所述感应组件能检测并反馈所述针管所受到的阻力大小是否超过阈值。The biopsy device includes a housing, a suction assembly, a propulsion assembly, and an induction assembly. The suction assembly includes a needle tube that can move in the axial direction. The distal end protrudes, and the sensing component is connected with the advancing component and the needle tube, so that when the pushing component drives the needle tube to advance toward the target tissue, the sensing component can detect and feed back the Whether the received resistance exceeds the threshold.
本发明的有益效果是:本发明提供的活检装置包括壳体、抽吸组件、推进组件和感应组件,抽吸组件包括可沿轴向移动的针管,在推进组件带动针管向目标组织推进的过程中,感应组件能检测并反馈针管所受到的阻力,操作人员能根据感应组件的反馈获知针管当前的刺穿情况,以能提高手术精度以及安全性。The beneficial effects of the present invention are: the biopsy device provided by the present invention includes a housing, a suction assembly, a push assembly and an induction assembly, the suction assembly includes a needle tube that can move in the axial direction, and the push assembly drives the needle tube to advance to the target tissue Among them, the sensing component can detect and feed back the resistance on the needle tube, and the operator can know the current puncture situation of the needle tube according to the feedback of the sensing component, so as to improve the accuracy and safety of the operation.
附图说明Description of drawings
图1是本发明第一实施例提供的活检装置立体图;Fig. 1 is a perspective view of a biopsy device provided by the first embodiment of the present invention;
图2是图1的活检装置爆炸图;Figure 2 is an exploded view of the biopsy device of Figure 1;
图3是图2的感应件立体图;Fig. 3 is a perspective view of the sensing element in Fig. 2;
图4是图2的A处局部放大图;Fig. 4 is a partial enlarged view of A place in Fig. 2;
图5是图1的活检装置竖剖图;Fig. 5 is a vertical sectional view of the biopsy device of Fig. 1;
图6是图5的B处局部放大图;Fig. 6 is a partial enlarged view at B of Fig. 5;
图7是图5的C处局部放大图;Fig. 7 is a partial enlarged view at C of Fig. 5;
图8是图5的D处局部放大图;Fig. 8 is a partial enlarged view of D in Fig. 5;
图9是本发明第二实施例提供的活检装置立体图;Fig. 9 is a perspective view of the biopsy device provided by the second embodiment of the present invention;
图10是图9的活检装置爆炸图;Fig. 10 is an exploded view of the biopsy device of Fig. 9;
图11是图9的活检装置竖剖图;Fig. 11 is a vertical sectional view of the biopsy device of Fig. 9;
图12是图10的E处局部放大图;Fig. 12 is a partial enlarged view at E of Fig. 10;
图13是本发明第三实施例的显示单元设置示意图。FIG. 13 is a schematic diagram of a display unit arrangement according to a third embodiment of the present invention.
附图中的标号如下:The labels in the accompanying drawings are as follows:
100、活检装置;100. Biopsy device;
110、壳体;110. Housing;
120、抽吸组件;121、针管;1211、突出部;122、针套;123、针芯;124、固定块;120, suction assembly; 121, needle tube; 1211, protrusion; 122, needle sleeve; 123, needle core; 124, fixed block;
130、推进组件;131、第一转动件;132、推动件;1321、定位槽;1322、第一注胶口;1323、过孔;133、螺纹结构;1331、内螺纹;1332、外螺纹;134、第一连接件;130. Propelling assembly; 131. First rotating member; 132. Pushing member; 1321. Positioning slot; 1322. First glue injection port; 1323. Via hole; 133. Thread structure; 1331. Internal thread; 1332. External thread; 134. The first connector;
140、感应组件;141、感应件;1411、固定部;1412、弹性部;1413、注胶槽;142、显示单元;140. Induction component; 141. Induction element; 1411. Fixed part; 1412. Elastic part; 1413. Glue injection groove; 142. Display unit;
150、调弯组件;151、牵引件;152、第二转动件;153、牵动件;1531、放置槽;1532、第二注胶口;1535、过孔;154、压紧件;1541、过孔;1542、辅助槽;155、螺纹结构;1551、内螺纹;1552、外螺纹;150. Bending assembly; 151. Pulling part; 152. Second rotating part; 153. Pulling part; 1531. Placement slot; 1532. Second glue injection port; Hole; 1542, auxiliary groove; 155, thread structure; 1551, internal thread; 1552, external thread;
160、密封结构;161、第一固定件;1611、过孔;162、第二固定件;1621、配合槽;163、第二连接件;164、挤压件;165、密封件;166、螺纹结构;1661、内螺纹;1662、外螺纹。160. Sealing structure; 161. First fixing part; 1611. Via hole; 162. Second fixing part; 1621. Cooperating groove; 163. Second connecting part; 164. Extrusion part; Structure; 1661, internal thread; 1662, external thread.
具体实施方式Detailed ways
为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合附图对本发明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发明。但是本发明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发明内涵的情况下做类似改进,因此本发明不受下面公开的具体实施的限制。In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.
在介入医疗器械领域,定义“远端”为手术过程中远离操作者的一端,定义“近端”为手术过程中靠近操作者的一端。“轴向”指平行于医疗器械远端中心和近端中心连线的方向,“径向”指垂直于上述轴向的方向。In the field of interventional medical devices, the "distal end" is defined as the end away from the operator during the operation, and the "proximal end" is defined as the end close to the operator during the operation. "Axial" refers to the direction parallel to the line connecting the center of the distal end and the center of the proximal end of the medical device, and "radial" refers to the direction perpendicular to the aforementioned axial direction.
如图1和图2所示,为本发明第一实施例提供的活检装置100。该活检装置100用于在人体内进行刺穿,以抽取人体的活体组织,具体不限于支气管、肝、肾、淋巴结等的穿刺抽取组织。在本实施例,以活检装置100穿刺支气管壁为例进行说明。As shown in FIG. 1 and FIG. 2 , a biopsy device 100 provided in the first embodiment of the present invention is provided. The biopsy device 100 is used for puncturing in the human body to extract living tissues of the human body, specifically not limited to puncturing and extracting tissues such as bronchus, liver, kidney, and lymph nodes. In this embodiment, the biopsy device 100 punctures the bronchial wall as an example for description.
如图1、图2和图5所示,活检装置100包括壳体110、抽吸组件120、推进组件130和感应组件140。抽吸组件120包括可沿轴向移动的针管121,针管121可穿设于壳体110。针管121的远端能从壳体110的远端伸出,以能刺入组织内。针管121呈中空状,以使目标组织能经针管121进入与活检装置100连接的负压装置(图未示)内。部分感应组件140可与推进组件130、针管121连接,以在推进组件130带动针管121向目标组织推进的过程中,感应组件140能检测并反馈针管121所受到的阻力大小。As shown in FIG. 1 , FIG. 2 and FIG. 5 , the biopsy device 100 includes a housing 110 , a suction assembly 120 , an advancing assembly 130 and a sensing assembly 140 . The suction assembly 120 includes a needle tube 121 movable in the axial direction, and the needle tube 121 can pass through the casing 110 . The distal end of the needle tube 121 can protrude from the distal end of the housing 110 to penetrate into the tissue. The needle tube 121 is hollow, so that the target tissue can enter the negative pressure device (not shown) connected with the biopsy device 100 through the needle tube 121 . Part of the sensing component 140 can be connected with the advancing component 130 and the needle tube 121, so that when the pushing component 130 drives the needle tube 121 to advance toward the target tissue, the sensing component 140 can detect and feedback the resistance on the needle tube 121.
该活检装置100的工作原理大致如下:The working principle of the biopsy device 100 is roughly as follows:
当针管121的远端不断增大压力抵住支气管壁但还未刺入支气管壁时,感应组件140检测到针管121所受的阻力超过预设的阈值。此时,感应组件140会将针管121未刺入支气管壁的情况反馈给操作人员,以示操作人员可以继续进针。When the pressure of the distal end of the needle tube 121 keeps increasing against the bronchial wall but has not pierced the bronchial wall, the sensing component 140 detects that the resistance of the needle tube 121 exceeds a preset threshold. At this time, the sensing component 140 will feed back to the operator that the needle tube 121 has not pierced the bronchial wall, so as to indicate that the operator can continue to insert the needle.
当针管121的远端刺入支气管壁时,感应组件140检测到针管121所受的阻力低于预设的阈值。此时,感应组件140会将针管121已刺入支气管壁情况反馈给操作人员,以示操作人员可以停止进针。When the distal end of the needle tube 121 pierces the bronchial wall, the sensing component 140 detects that the resistance of the needle tube 121 is lower than a preset threshold. At this time, the sensing component 140 will feed back the fact that the needle tube 121 has pierced the bronchial wall to the operator, so as to indicate that the operator can stop inserting the needle.
综上,相比现有技术,该活检装置100至少具有以下有益效果:In summary, compared with the prior art, the biopsy device 100 has at least the following beneficial effects:
在推进组件130带动针管121向目标组织推进的过程中,感应组件140能检测并反馈针管121所受到的阻力,操作人员能根据感应组件140的反馈获知针管121当前的刺穿情况,以能提高手术精度以及安全性。In the process that the advancing assembly 130 drives the needle tube 121 to advance toward the target tissue, the sensing assembly 140 can detect and feed back the resistance on the needle tube 121, and the operator can know the current piercing situation of the needle tube 121 according to the feedback from the sensing assembly 140, so as to improve Surgical precision and safety.
在本实施例中,如图2所示,抽吸组件120还包括穿设于壳体110的远端的针套122。针套122的远端可突出壳体110的远端。在控制针管121刺穿支气管壁前,针管121的远端收纳于针套122内。针管121沿轴向可活动地穿设 于针套122。In this embodiment, as shown in FIG. 2 , the suction assembly 120 further includes a needle sheath 122 passing through the distal end of the casing 110 . The distal end of the needle guard 122 may protrude beyond the distal end of the housing 110 . Before the needle tube 121 is controlled to pierce the bronchial wall, the distal end of the needle tube 121 is contained in the needle sheath 122 . The needle tube 121 is movably installed in the needle sheath 122 along the axial direction.
在本实施例中,如图2所示,抽吸组件120还包括针芯123。针芯123可沿轴向穿设于针管121并填堵针管121的内腔。针管121刺入人体的过程中,且还未抵达支气管具有目标组织的区域前,针芯123的存在能防止其他非目标组织进入针管121的内腔,提高活检成功率。待针管121抵达支气管具有目标组织的区域后,将针芯123从针管121内抽出后即可进行抽吸目标组织。In this embodiment, as shown in FIG. 2 , the suction assembly 120 further includes a needle core 123 . The needle core 123 can pass through the needle tube 121 in the axial direction and fill up the inner cavity of the needle tube 121 . When the needle tube 121 penetrates into the human body and before it reaches the area of the bronchi with the target tissue, the presence of the needle core 123 can prevent other non-target tissues from entering the inner cavity of the needle tube 121 and improve the biopsy success rate. After the needle tube 121 reaches the area of the bronchi with the target tissue, the needle core 123 is pulled out from the needle tube 121 to aspirate the target tissue.
在本实施例中,针管121的近端可连有固定块124(见图6),该固定块124用于使针管121与感应组件140固定连接。并且,针管121的近端端头突出固定块的近端端面形成一个突出部1211。该突出部1211可收容于感应组件140的孔中。在本实施例中,如图1、图2、图5和图6所示,推进组件130包括推动件132和第一转动件131。推动件132可呈块状结构,第一转动件131可呈中空圆筒状结构。推动件132可位于第一转动件131内,推动件132可与第一转动件131转动连接。具体地,第一转动件131转动以驱动推动件132沿轴向移动。针管121可与推动件132连接。具体在本实施例中,第一转动件131与推动件132相对转动,以使推动件132能沿轴向移动。推动件132沿轴向移动能带动针管121沿轴向移动。推动件132沿轴向朝远端移动能使针管121的远端刺入支气管壁。In this embodiment, the proximal end of the needle tube 121 can be connected with a fixing block 124 (see FIG. 6 ), and the fixing block 124 is used for fixedly connecting the needle tube 121 with the induction component 140 . Moreover, the proximal end of the needle tube 121 protrudes from the proximal end surface of the fixing block to form a protrusion 1211 . The protruding portion 1211 can be received in the hole of the sensing component 140 . In this embodiment, as shown in FIGS. 1 , 2 , 5 and 6 , the propulsion assembly 130 includes a pusher 132 and a first rotating member 131 . The pushing member 132 may be in a block shape, and the first rotating member 131 may be in a hollow cylindrical shape. The pushing member 132 can be located in the first rotating member 131 , and the pushing member 132 can be rotatably connected with the first rotating member 131 . Specifically, the first rotating member 131 rotates to drive the pushing member 132 to move axially. The needle tube 121 can be connected with the pusher 132 . Specifically, in this embodiment, the first rotating member 131 and the pushing member 132 rotate relative to each other, so that the pushing member 132 can move axially. The axial movement of the pushing member 132 can drive the needle tube 121 to move in the axial direction. Moving the pusher 132 axially toward the distal end enables the distal end of the needle tube 121 to pierce the bronchial wall.
在本实施例中,如图2所示,推动件132的近端可设有第一连接件134,第一连接件134的近端可沿轴向伸出壳体110外。第一连接件134为中空结构,且第一连接件134的管腔与针管121的管腔相连通。第一连接件134的近端用于与负压装置(图中未示出)相连,以便于能对针管121进行负压操作。In this embodiment, as shown in FIG. 2 , the proximal end of the pushing member 132 may be provided with a first connecting member 134 , and the proximal end of the first connecting member 134 may extend out of the casing 110 in the axial direction. The first connecting part 134 is a hollow structure, and the lumen of the first connecting part 134 communicates with the lumen of the needle tube 121 . The proximal end of the first connecting piece 134 is used to connect with a negative pressure device (not shown in the figure), so as to perform negative pressure operation on the needle tube 121 .
在本实施例中,如图2和图6所示,推动件132和第一转动件131之间可设有螺纹结构133。推动件132和第一转动件131可通过螺纹结构133转动连接。螺纹结构133可使推动件132与第一转动件131相连,且在推动件132相对第一转动件131转动时,推动件132能在轴向上移动。螺纹结构133包括内螺纹1331和与该内螺纹1331适配的外螺纹1332。内螺纹1331可设于第一转 动件131的内壁上,外螺纹1332可设于推动件132的周壁上。或者,内螺纹1331可设于推动件132的周壁上,外螺纹1332可设于第一转动件131的内壁上。进一步地,第一转动件131可套设于壳体110,外螺纹1332可沿径向穿过壳体110,并与内螺纹1331螺接配合。In this embodiment, as shown in FIG. 2 and FIG. 6 , a thread structure 133 may be provided between the pushing member 132 and the first rotating member 131 . The pushing member 132 and the first rotating member 131 are rotatably connected through a threaded structure 133 . The thread structure 133 can connect the pusher 132 with the first rotating member 131 , and when the pusher 132 rotates relative to the first rotating member 131 , the pusher 132 can move in the axial direction. The thread structure 133 includes an internal thread 1331 and an external thread 1332 adapted to the internal thread 1331 . The internal thread 1331 can be provided on the inner wall of the first rotating member 131, and the external thread 1332 can be provided on the peripheral wall of the pushing member 132. Alternatively, the internal thread 1331 can be provided on the peripheral wall of the pushing member 132 , and the external thread 1332 can be provided on the inner wall of the first rotating member 131 . Further, the first rotating member 131 can be sleeved on the housing 110 , and the external thread 1332 can pass through the housing 110 in the radial direction and be screwed with the internal thread 1331 .
在本实施例中,如图2、图5和图6所示,感应组件140包括感应件141,感应件141可位于壳体110内并设于针管121的近端和推动件132之间。在推动件132带动针管121向目标组织推进的过程中,感应件141能检测针管121所受到的阻力大小。可以理解地,当针管121的远端对支气管壁不断施加逐步增大的压力,以抵住支气管壁但还未刺入支气管壁时,针管121受到的反作用力(即阻力)会施加到感应件141上,并不断地增大至超过预设的阈值,即感应件141检测到针管121所受的阻力超过预设的阈值。当针管121的远端刺入支气管壁时,感应组件140检测到针管121所受的阻力低于预设的阈值,针管121受到的反作用力会施加到感应件141上,并不断地减小至低于预设的阈值,即感应件141检测到针管121所受的压力低于预设的阈值。In this embodiment, as shown in FIG. 2 , FIG. 5 and FIG. 6 , the sensing assembly 140 includes a sensing element 141 . The sensing element 141 can be located in the housing 110 and disposed between the proximal end of the needle tube 121 and the pushing element 132 . When the pushing member 132 drives the needle tube 121 to advance toward the target tissue, the sensing member 141 can detect the resistance of the needle tube 121 . It can be understood that when the distal end of the needle tube 121 continuously exerts gradually increasing pressure on the bronchial wall, so as to resist the bronchial wall but not yet penetrate the bronchial wall, the reaction force (ie resistance) received by the needle tube 121 will be applied to the sensing element 141 , and continuously increase to exceed the preset threshold, that is, the sensor 141 detects that the resistance on the needle tube 121 exceeds the preset threshold. When the distal end of the needle tube 121 pierces the bronchial wall, the sensing component 140 detects that the resistance suffered by the needle tube 121 is lower than a preset threshold, and the reaction force received by the needle tube 121 will be applied to the sensing element 141 and continuously reduced to Below the preset threshold, that is, the sensor 141 detects that the pressure on the needle tube 121 is lower than the preset threshold.
在本实施例中,如图3和图6所示,感应件141包括固定部1411、弹性部1412及贯穿固定部1411及弹性部1412的贯穿孔1415。固定部1411可与推动件132固定连接,可以在固定部1411与推动件132的接触面通过注胶固定。弹性部1412可设于固定部1411的远端,且弹性部1412与固定部1411部分边沿固定连接。而弹性部1412与固定部1411未连接的部分边沿之间可具有与贯穿孔1415连通的间隙1417,以使弹性部1412受到压力时,弹性部1412能在轴向上相对固定部1411有细微偏移,从而较易检测器所受的阻力。针管121的近端可与弹性部1412固定连接。针管121的突出部1211收容于贯穿孔1415,且突出部1211的近端相较间隙1417更靠近固定部1411的近端,从而在抽吸过程中防止血液或组织等进入间隙1417,进而提高感应件141的感应效率。针管121刺入目标组织受到阻力以带动弹性部1412相对固定部1411在轴向上偏移,从而根据其偏移量检测针管121所受到的阻力大小。其他实施例中,固定部1411 与推动件132之间可以通过螺接、卡接等多种合适的方式连接在一起,不限于本实施例中的胶合粘结。In this embodiment, as shown in FIG. 3 and FIG. 6 , the induction element 141 includes a fixing portion 1411 , an elastic portion 1412 and a through hole 1415 passing through the fixing portion 1411 and the elastic portion 1412 . The fixing part 1411 can be fixedly connected with the pushing part 132 , and can be fixed by injecting glue on the contact surface between the fixing part 1411 and the pushing part 132 . The elastic part 1412 can be disposed at the distal end of the fixing part 1411 , and the elastic part 1412 is fixedly connected to a part of the edge of the fixing part 1411 . And there may be a gap 1417 communicating with the through hole 1415 between the edge of the elastic part 1412 and the fixed part 1411, so that when the elastic part 1412 is under pressure, the elastic part 1412 can have a slight deviation in the axial direction relative to the fixed part 1411. moving, thereby making it easier for the detector to experience resistance. The proximal end of the needle tube 121 can be fixedly connected with the elastic part 1412 . The protruding part 1211 of the needle tube 121 is accommodated in the through hole 1415, and the proximal end of the protruding part 1211 is closer to the proximal end of the fixed part 1411 than the gap 1417, thereby preventing blood or tissue from entering the gap 1417 during the suction process, thereby improving the induction Part 141 induction efficiency. When the needle tube 121 penetrates into the target tissue, it is resisted to drive the elastic part 1412 to axially deviate relative to the fixed part 1411 , so as to detect the magnitude of the resistance experienced by the needle tube 121 according to the deflection amount. In other embodiments, the fixing part 1411 and the pushing member 132 may be connected together in various suitable ways such as screw connection, clip connection, etc., and are not limited to the glue bonding in this embodiment.
在本实施例中,如图3和图6所示,推动件132的远端可设有定位槽1321。固定部1411可容置于定位槽1321内,以防止固定部1411在受到轴向压力时在径向上产生偏移,提高感应件141的检测精度。固定部1411的近端与定位槽1321的槽底可固定连接。进一步地,为防止直接将胶粘剂注在固定部1411的近端端面与定位槽1321的槽底上导致胶粘剂从固定部1411的侧边溢出,使得弹性部1412与推动件132固接在一起而无法弹性形变,则固定部1411的近端端面上可设有注胶槽1413,可将胶粘剂注在注胶槽1413内。In this embodiment, as shown in FIG. 3 and FIG. 6 , the distal end of the pushing member 132 may be provided with a positioning groove 1321 . The fixing part 1411 can be accommodated in the positioning groove 1321 to prevent the fixing part 1411 from being displaced in the radial direction when subjected to axial pressure, and improve the detection accuracy of the sensing element 141 . The proximal end of the fixing portion 1411 can be fixedly connected to the bottom of the positioning groove 1321 . Further, in order to prevent the adhesive from directly injecting the adhesive on the proximal end surface of the fixing part 1411 and the groove bottom of the positioning groove 1321, causing the adhesive to overflow from the side of the fixing part 1411, so that the elastic part 1412 and the pusher 132 are fixed together and cannot Elastic deformation, the proximal end surface of the fixing part 1411 can be provided with a glue injection groove 1413 , and the adhesive can be injected into the glue injection groove 1413 .
推动件132上可设有沿径向设置的第一注胶口1322,第一注胶口1322可与定位槽1321连通。第一注胶口1322可对应固定部1411的近端端面与定位槽1321的槽底的配合处设置,以在固定部1411的近端端面与定位槽1321的槽底接触后,将胶粘剂从第一注胶口1322注入定位槽1321内,使固定部1411与推动件132更好地固定连接。The pushing member 132 can be provided with a first glue injection port 1322 arranged in the radial direction, and the first glue injection port 1322 can communicate with the positioning groove 1321 . The first glue injection port 1322 can be set corresponding to the joint between the proximal end surface of the fixing part 1411 and the groove bottom of the positioning groove 1321, so that after the proximal end surface of the fixing part 1411 contacts the groove bottom of the positioning groove 1321, the adhesive can be released from the first groove. A glue injection port 1322 injects into the positioning groove 1321 , so that the fixing part 1411 and the pushing member 132 are better fixedly connected.
在本实施例中,如图1和图2所示,感应组件140还包括显示单元142。显示单元142可设于壳体110外,具体是设于壳体110上。并且,显示单元142与感应件141电连接,以能反映感应件141检测到的针管121受到的阻力大小是否超过阈值。In this embodiment, as shown in FIGS. 1 and 2 , the sensing component 140 further includes a display unit 142 . The display unit 142 can be disposed outside the casing 110 , specifically on the casing 110 . Moreover, the display unit 142 is electrically connected with the sensing element 141 to reflect whether the resistance of the needle tube 121 detected by the sensing element 141 exceeds a threshold.
在本实施例中,显示单元142可以是能点亮或者熄灭的指示灯。可以理解地,当感应件141检测到针管121所受的阻力超过预设的阈值时,指示灯会点亮。当感应件141检测到针管121所受的阻力低于预设的阈值时,指示灯会熄灭。即通过指示灯的点亮和熄灭提示操作人员针管121对支气管壁的刺穿情况。In this embodiment, the display unit 142 may be an indicator light that can be turned on or off. Understandably, when the sensor 141 detects that the resistance of the needle tube 121 exceeds a preset threshold, the indicator light will be on. When the sensor 141 detects that the resistance of the needle tube 121 is lower than a preset threshold, the indicator light will be turned off. That is, the lighting and extinguishing of the indicator light prompts the operator that the needle tube 121 punctures the bronchial wall.
在本实施例中,如图1和图2所示,由于有些目标组织位于支气管较为弯曲的位置,导致直线状的针套122难以对准该目标组织。基于此,活检装置100还包括调弯组件150,用以使针套122的远端弯曲,以使针套122的远端能对准前述所述的目标组织。并且,还能根据支气管的目标组织的具体位置调节针 套122远端的弯曲程度。In this embodiment, as shown in FIG. 1 and FIG. 2 , since some target tissues are located in relatively curved positions of the bronchi, it is difficult for the linear needle sheath 122 to align with the target tissues. Based on this, the biopsy device 100 further includes a bending assembly 150 for bending the distal end of the needle sheath 122 so that the distal end of the needle sheath 122 can be aligned with the aforementioned target tissue. And, also can adjust the bending degree of needle sheath 122 far-ends according to the specific position of the target tissue of bronchi.
在本实施例中,如图2、图5、图8所示,调弯组件150包括牵引件151。牵引件151的远端可穿设于针套122的管壁并与针套122的远端固定。牵引件151的近端可从针套122的管壁内伸出针套122外,并位于壳体110内。牵引件151可以是镍钛丝。拉扯牵引件151的近端时能带动针套122的远端弯曲。并且,能够通过控制拉扯牵引件151的力度来调节针套122远端的弯曲程度。In this embodiment, as shown in FIG. 2 , FIG. 5 , and FIG. 8 , the bending adjustment assembly 150 includes a traction member 151 . The distal end of the pulling member 151 can pass through the tube wall of the needle sheath 122 and be fixed with the distal end of the needle sheath 122 . The proximal end of the pulling member 151 can extend out of the needle sheath 122 from the tube wall of the needle sheath 122 and be located in the housing 110 . The pulling member 151 may be a nickel-titanium wire. Pulling the proximal end of the traction member 151 can drive the distal end of the needle sheath 122 to bend. Moreover, the bending degree of the distal end of the needle sheath 122 can be adjusted by controlling the strength of pulling the pulling member 151 .
在本实施例中,如图2、图4、图5和8所示,调弯组件150还包括第二转动件152和牵动件153。牵动件153可位于壳体110内并与牵引件151的近端固定连接。第二转动件152可套设于壳体110,且与牵动件153转动连接。第二转动件152与牵动件153相对转动时,第二转动件152能驱动牵动件153沿轴向移动。当牵动件153朝向壳体110的近端移动时,能带动牵引件151拉扯针套122的远端弯曲。可以理解地,牵动件153越靠近壳体110的近端,拉扯牵引件151的力度就越大,牵引件151拉扯针套122远端的力度也就越大,则针套122远端的弯曲程度也越大。In this embodiment, as shown in FIGS. 2 , 4 , 5 and 8 , the bending adjustment assembly 150 further includes a second rotating member 152 and a driving member 153 . The pulling member 153 can be located in the housing 110 and fixedly connected with the proximal end of the pulling member 151 . The second rotating member 152 can be sleeved on the housing 110 and connected to the driving member 153 in a rotating manner. When the second rotating member 152 and the driving member 153 rotate relative to each other, the second rotating member 152 can drive the driving member 153 to move axially. When the pulling member 153 moves toward the proximal end of the housing 110 , it can drive the pulling member 151 to pull the distal end of the needle sheath 122 to bend. It can be understood that the closer the pulling member 153 is to the proximal end of the housing 110, the greater the pulling force of the pulling member 151 is, and the greater the pulling force of the pulling member 151 pulling the distal end of the needle sheath 122 is, the bending of the distal end of the needle sheath 122 will be greater. The degree is also greater.
在本实施例中,如图2和8所示,第二转动件152和牵动件153之间可设有螺纹结构155。第二转动件152和牵动件153可通过螺纹结构155连接。螺纹结构155包括内螺纹1551和与该内螺纹1551适配的外螺纹1552。在本实施例中,如图2、图4、图5和8所示,调弯组件150还包括沿径向插设于牵动件153的压紧件154。牵动件153沿轴向的一侧可开设有放置槽1531,放置槽1531可沿垂直于轴向方向设置。放置槽1531可以是圆柱槽,对应地,压紧件154可呈圆柱状,以使压紧件154能相对牵动件153转动。牵动件153设有用于供牵引件151穿过的过孔1535,该过孔1535可沿轴向贯穿牵动件153的近端端面及远端端面。压紧件154可设有用于供牵引件151穿过的过孔1541,该过孔1541可沿压紧件154的径向贯穿所述压紧件154的侧面。压紧件154朝向壳体110外的一端上开设有辅助槽1542,以在压紧件154插入牵动件153的放置槽1531后,可借助螺丝刀插入辅助槽1542内,螺丝刀转动以带动压紧件154转 动。辅助槽1542可以是一字槽或十字槽。可以理解地,放置槽1531也可以沿其他方向设置,不限于本实施方式,比如图2中的牵动件153的部分上表面向牵动件153的内部凹陷形成放置槽,只要放置槽与牵动件的过孔相连通,牵引件能够穿过收容在放置槽中的压紧件上的过孔,实现牵引件与牵动件的连接即可。In this embodiment, as shown in FIGS. 2 and 8 , a threaded structure 155 may be provided between the second rotating member 152 and the pulling member 153 . The second rotating member 152 and the driving member 153 can be connected through a thread structure 155 . The thread structure 155 includes an internal thread 1551 and an external thread 1552 adapted to the internal thread 1551 . In this embodiment, as shown in FIGS. 2 , 4 , 5 and 8 , the bending adjustment assembly 150 further includes a pressing member 154 radially inserted into the driving member 153 . One side of the driving member 153 along the axial direction may be provided with a placing groove 1531 , and the placing groove 1531 may be arranged along a direction perpendicular to the axial direction. The placing groove 1531 can be a cylindrical groove, and correspondingly, the pressing member 154 can be cylindrical, so that the pressing member 154 can rotate relative to the driving member 153 . The pulling member 153 is provided with a through hole 1535 for the pulling member 151 to pass through, and the through hole 1535 can pass through the proximal end surface and the distal end surface of the pulling member 153 in the axial direction. The pressing part 154 may be provided with a through hole 1541 for the traction part 151 to pass through, and the through hole 1541 may pass through the side of the pressing part 154 along the radial direction of the pressing part 154 . An auxiliary groove 1542 is provided on the end of the pressing member 154 towards the outside of the housing 110, so that after the pressing member 154 is inserted into the placement groove 1531 of the driving member 153, it can be inserted into the auxiliary groove 1542 by means of a screwdriver, and the screwdriver turns to drive the pressing member. 154 turns. The auxiliary groove 1542 may be a slot or a cross groove. It can be understood that the placement groove 1531 can also be arranged in other directions, and is not limited to this embodiment. For example, the upper surface of part of the pulling member 153 in FIG. The via holes are connected, and the traction piece can pass through the via hole on the pressing piece accommodated in the placing groove, so as to realize the connection between the traction piece and the pulling piece.
在调弯组件150的装配过程中,将压紧件154插入放置槽1531内,且使压紧件154上的过孔1541与牵动件153上的过孔1535对接并连通。将牵引件151的近端穿过牵动件153上的过孔1541与压紧件154上的过孔1541后从牵动件153朝向壳体110近端的一侧部分伸出。压紧件154转动使牵引件151的缠绕在压紧件154上,以使牵引件151的近端与牵动件153固定连接。During the assembly process of the bending adjustment assembly 150 , the pressing member 154 is inserted into the placement groove 1531 , and the through hole 1541 on the pressing member 154 is connected with the through hole 1535 on the driving member 153 . The proximal end of the pulling member 151 is passed through the through hole 1541 on the pulling member 153 and the through hole 1541 on the pressing member 154 and protrudes from the side of the pulling member 153 toward the proximal end of the casing 110 . The pressing part 154 rotates so that the pulling part 151 is wound on the pressing part 154 so that the proximal end of the pulling part 151 is fixedly connected with the pulling part 153 .
在本实施例中,压紧件154和牵动件153之间可设有如螺纹结构155相似的螺纹结构(图未示)。压紧件154和牵动件153可通过该相似的螺纹结构固定连接。相似的螺纹结构包括内螺纹和与该内螺纹适配的外螺纹。内螺纹可位于放置槽1531内,并设于牵动件153的内壁上,外螺纹可设于压紧件154的周壁上。或者,内螺纹可设于压紧件154的周壁上,外螺纹可位于放置槽1531内,并设于牵动件153的内壁上。In this embodiment, a thread structure (not shown) similar to the thread structure 155 can be provided between the pressing member 154 and the pulling member 153 . The pressing member 154 and the pulling member 153 can be fixedly connected through the similar thread structure. A similar thread structure includes an internal thread and an external thread adapted to the internal thread. The internal thread can be located in the placement groove 1531 and be provided on the inner wall of the driving member 153 , and the external thread can be provided on the peripheral wall of the pressing member 154 . Alternatively, the internal thread can be provided on the peripheral wall of the pressing member 154 , and the external thread can be located in the placement groove 1531 and provided on the inner wall of the driving member 153 .
在本实施例中,如图8所示,压紧件154和牵动件153之间的间隙可进行注胶填充,以使缠绕在压紧件154上的牵引件151近端与推动件132连接更加牢固。进一步地,牵动件153上可设有沿径向设置的第二注胶口1532,第二注胶口1532可与放置槽1531(见图4)连通。在牵引件151的近端缠绕于压紧件154后,将胶粘剂从第二注胶口1532注入放置槽1531内,使牵引件151的近端、压紧件154以及牵动件153固定连接。In this embodiment, as shown in FIG. 8 , the gap between the pressing member 154 and the pulling member 153 can be filled with glue, so that the proximal end of the pulling member 151 wound on the pressing member 154 is connected with the pushing member 132 more solid. Further, the pulling member 153 may be provided with a second glue injection port 1532 arranged in the radial direction, and the second glue injection port 1532 may communicate with the placement groove 1531 (see FIG. 4 ). After the proximal end of the pulling member 151 is wrapped around the pressing member 154 , the adhesive is injected into the placing groove 1531 from the second injection port 1532 , so that the proximal end of the drawing member 151 , the pressing member 154 and the pulling member 153 are fixedly connected.
在本实施例中,牵引件151的近端沿轴向穿过压紧件154的长度大于或等于压紧件154侧壁的二分之一周长,以在压紧件154转动后牵引件151的近端不会从压紧件154上脱出,且能牢固地缠绕在压紧件154上。In this embodiment, the length of the proximal end of the traction member 151 passing through the pressing member 154 in the axial direction is greater than or equal to half the circumference of the side wall of the pressing member 154, so that the pulling member can be pulled after the pressing member 154 rotates. The proximal end of 151 will not disengage from the pressing piece 154 and can be firmly wound on the pressing piece 154 .
在本实施例中,如图4所示,推进组件130和调弯组件150之间可设有密 封结构160,以防止组织细胞、液体等从针套122的近端进入所述壳体110内,有效提高活检装置100的使用效率。In this embodiment, as shown in FIG. 4 , a sealing structure 160 may be provided between the advancing assembly 130 and the bending assembly 150 to prevent tissue cells, liquid, etc. from entering the housing 110 from the proximal end of the needle sheath 122 , effectively improving the use efficiency of the biopsy device 100 .
在本实施例中,如图2、图4、图5和图7所示,密封结构160包括第一固定件161、第二固定件162、挤压件164和密封件165。第一固定件161可设于针套122的近端。第一固定件161和第二固定件162均与壳体110固定连接。第一固定件161和第二固定件162均可呈块状。第一固定件161与第二固定件162之间可设有第二连接件163,第二连接件163的两端分别与第一固定件161的近端和第二固定件162的远端相连。第二连接件163可呈沿轴向设置的管状结构。即,推进组件130靠近壳体110的近端设置,调弯组件150靠近壳体110的远端设置。推进组件130靠近壳体110的近端能方便操作人员控制进针。调弯组件150靠近壳体110的远端,以能减短调弯组件150与针套122的远端的距离,提高调弯效率。In this embodiment, as shown in FIG. 2 , FIG. 4 , FIG. 5 and FIG. 7 , the sealing structure 160 includes a first fixing part 161 , a second fixing part 162 , an extrusion part 164 and a sealing part 165 . The first fixing part 161 can be disposed on the proximal end of the needle sheath 122 . Both the first fixing part 161 and the second fixing part 162 are fixedly connected with the housing 110 . Both the first fixing part 161 and the second fixing part 162 can be block-shaped. A second connecting member 163 may be provided between the first fixing member 161 and the second fixing member 162, and the two ends of the second connecting member 163 are respectively connected to the proximal end of the first fixing member 161 and the distal end of the second fixing member 162. . The second connecting member 163 may be a tubular structure disposed along the axial direction. That is, the propulsion assembly 130 is disposed near the proximal end of the housing 110 , and the bending adjustment assembly 150 is disposed near the distal end of the housing 110 . The proximal end of the advancing assembly 130 close to the housing 110 can facilitate the operator to control the needle insertion. The bend adjustment assembly 150 is close to the distal end of the housing 110 so as to shorten the distance between the bend adjustment assembly 150 and the distal end of the needle sheath 122 and improve the bend adjustment efficiency.
第二固定件162的近端可开设有配合槽1621,挤压件164可转动插设于配合槽1621内,以在挤压件164相对固定件转动时,挤压件164能沿轴向移动。密封件165可沿径向设于固定件162与挤压件164之间。密封件165可以呈环状,且具有一定的形变功能,具体可以是橡胶圈。牵引件151的近端从针套122的管壁内伸出并穿过第一固定件161后,可与压紧件154连接。针管121的远端可依次穿过挤压件164、密封件165、第二固定件162、第二连接件163和第一固定件161后进入针套122内。在挤压件164朝向配合槽1621的槽底移动的过程中,挤压件164能与第二固定件162配合挤压密封件165,使密封件165能沿径向形变增大,以消除针管121与第二固定件162在径向上的间隙,起到防止组织细胞、液体等从针套122的近端进入第二连接件163内后,再从针管121与第二固定件162之间的间隙处渗入壳体110内的作用。The proximal end of the second fixing part 162 can be provided with a fitting groove 1621, and the extruding part 164 can be rotatably inserted in the fitting groove 1621, so that when the extruding part 164 rotates relative to the fixing part, the extruding part 164 can move axially . The sealing element 165 can be radially disposed between the fixing element 162 and the extruding element 164 . The sealing member 165 may be annular and have a certain deformation function, specifically, it may be a rubber ring. The proximal end of the traction member 151 protrudes from the tube wall of the needle sheath 122 and passes through the first fixing member 161 to be connected with the pressing member 154 . The distal end of the needle tube 121 can pass through the extruding part 164 , the sealing part 165 , the second fixing part 162 , the second connecting part 163 and the first fixing part 161 in order and then enter the needle sheath 122 . When the extruding part 164 moves toward the groove bottom of the matching groove 1621, the extruding part 164 can cooperate with the second fixing part 162 to extrude the sealing part 165, so that the sealing part 165 can deform and increase in the radial direction, so as to eliminate the needle tube 121 and the second fixing part 162 in the radial direction, to prevent tissue cells, liquids, etc. The effect of infiltration into the housing 110 at the gap.
在本实施例中,如图4和图7所示,第二固定件162和挤压件164之间可设有螺纹结构166。第二固定件162和挤压件164可通过螺纹结构166固定连接。螺纹结构166包括内螺纹1662和与该内螺纹1662适配的外螺纹1661。内 螺纹1662可位于配合槽1621内,并设于第二固定件162的内壁上,外螺纹1661可设于挤压件164的周壁上。或者,内螺纹1662可设于挤压件164的周壁上,外螺纹1661可位于配合槽1621内,并设于第二固定件162的内壁上。In this embodiment, as shown in FIG. 4 and FIG. 7 , a thread structure 166 may be provided between the second fixing part 162 and the extrusion part 164 . The second fixing part 162 and the extruding part 164 can be fixedly connected through a thread structure 166 . The thread structure 166 includes an internal thread 1662 and an external thread 1661 adapted to the internal thread 1662 . The internal thread 1662 can be located in the matching groove 1621 and be provided on the inner wall of the second fixing part 162 , and the external thread 1661 can be provided on the peripheral wall of the extrusion part 164 . Alternatively, the internal thread 1662 can be provided on the peripheral wall of the extruded part 164 , and the external thread 1661 can be located in the matching groove 1621 and provided on the inner wall of the second fixing part 162 .
可以理解的是,其他实施例中,第一转动件131也可以省略不要,此时,只要推动件132可以突出壳体110且沿平行于壳体110的纵向中心轴线移动,也可以实现推动针管121的作用。还可以理解的是,其他实施例中,第二转动件152也可以省略不要,只要牵动件153可以突出壳体110且沿平行于壳体110的纵向中心轴线移动,也可以实现调弯针套122的作用。It can be understood that in other embodiments, the first rotating member 131 can also be omitted. At this time, as long as the pushing member 132 can protrude from the housing 110 and move along the longitudinal center axis parallel to the housing 110, it can also push the needle tube. 121 role. It can also be understood that, in other embodiments, the second rotating member 152 can also be omitted, as long as the driving member 153 can protrude from the housing 110 and move along the longitudinal center axis parallel to the housing 110, the needle sleeve can also be adjusted 122 role.
如图9至图12所示,本实施例提供的活检装置100与第一实施例基本相同。具体地,抽吸组件120的针管121可沿轴向移动,且穿设于壳体110。针套122穿设于壳体110的远端,且针套122的远端突出壳体110的远端。至少部分针管121收纳于针套122内,且针管121沿轴向可活动地穿设于针套122。针芯123沿轴向穿设于针管121并填堵针管121的内腔。感应件141位于壳体110内并设于针管121的近端和推动件132之间。显示单元142设于壳体110外,且与感应件141电连接。推进组件130的推动件132位于第一转动件131内,且推动件132与第一转动件131转动连接,针管121与推动件132连接。调弯组件150的牵引件151的远端可穿设于针套122的管壁并与针套122的远端固定。牵引件151的近端可从针套122的管壁内伸出针套122外,并位于壳体110内。As shown in FIGS. 9 to 12 , the biopsy device 100 provided by this embodiment is basically the same as that of the first embodiment. Specifically, the needle tube 121 of the suction assembly 120 can move in the axial direction and pass through the casing 110 . The needle sheath 122 passes through the distal end of the housing 110 , and the distal end of the needle sheath 122 protrudes from the distal end of the housing 110 . At least part of the needle tube 121 is accommodated in the needle sheath 122 , and the needle tube 121 is movably passed through the needle sheath 122 along the axial direction. The needle core 123 is axially passed through the needle tube 121 and fills up the inner cavity of the needle tube 121 . The sensing element 141 is located in the casing 110 and is disposed between the proximal end of the needle tube 121 and the pushing element 132 . The display unit 142 is disposed outside the casing 110 and is electrically connected to the sensing element 141 . The pushing member 132 of the pushing assembly 130 is located in the first rotating member 131 , and the pushing member 132 is rotationally connected with the first rotating member 131 , and the needle tube 121 is connected with the pushing member 132 . The distal end of the pulling member 151 of the bending adjustment assembly 150 can pass through the tube wall of the needle sheath 122 and be fixed with the distal end of the needle sheath 122 . The proximal end of the pulling member 151 can extend out of the needle sheath 122 from the tube wall of the needle sheath 122 and be located in the housing 110 .
本实施例与第一实施例不同的是,在本实施例中,推进组件130靠近壳体110的远端设置,调弯组件150靠近壳体110的近端设置。推进组件130靠近壳体110的远端,以能方便操作人员能快速及时察觉到显示单元142的状态,并及时做出相应的动作。在本实施例中,如图10至图12所示,牵动件153可套设于第一连接件134上,且位于壳体110的近端与推动件132之间。牵动件153可在第一连接件134上沿轴向移动。牵引件151的近端从针套122的管壁伸出,并依次穿过第一固定件161的过孔1611、推动件132的过孔1323、牵动 件153的过孔1535的远端进入压紧件154的过孔1541后,再穿出牵动件153的过孔1535的近端端面,之后再压紧件154的连接。该些过孔轴向均平行于活检装置100的纵向中心轴,且位于活检装置100的纵向中心轴的同一侧,另外,第一固定件161的过孔1611、推动件132的过孔1323、牵动件153的过孔1535的纵向中心轴至活检装置100的纵向中心轴之间的距离逐渐增大,以防止牵引件151与第一固定件161、推动件132及牵动件153之间的结合应力突变过大,从而降低牵引件151与第一固定件161、推动件132及牵动件153之间断裂的风险,提高牵引件151的使用寿命。The difference between this embodiment and the first embodiment is that in this embodiment, the propulsion assembly 130 is disposed near the distal end of the housing 110 , and the bending adjustment assembly 150 is disposed near the proximal end of the housing 110 . The propulsion assembly 130 is close to the far end of the housing 110 so that the operator can quickly and timely perceive the state of the display unit 142 and take corresponding actions in time. In this embodiment, as shown in FIGS. 10 to 12 , the pulling member 153 can be sleeved on the first connecting member 134 and located between the proximal end of the casing 110 and the pushing member 132 . The driving member 153 can move axially on the first connecting member 134 . The proximal end of the pulling member 151 protrudes from the tube wall of the needle sheath 122, and passes through the through hole 1611 of the first fixing member 161, the through hole 1323 of the pushing member 132, and the distal end of the through hole 1535 of the pulling member 153 to enter the compression chamber. After the through hole 1541 of the tightening member 154, pass through the proximal end surface of the through hole 1535 of the pulling member 153, and then connect the pressing member 154. The axial directions of these through holes are all parallel to the longitudinal central axis of the biopsy device 100, and are located on the same side of the longitudinal central axis of the biopsy device 100. In addition, the through holes 1611 of the first fixing member 161, the through holes 1323 of the pushing member 132, The distance between the longitudinal central axis of the through hole 1535 of the pulling member 153 and the longitudinal central axis of the biopsy device 100 gradually increases to prevent the pulling member 151 from being combined with the first fixing member 161 , the pushing member 132 and the pulling member 153 The abrupt change of stress is too large, thereby reducing the risk of fracture between the traction member 151 and the first fixing member 161 , the pushing member 132 and the driving member 153 , and improving the service life of the traction member 151 .
如图13所示,本实施例提供的活检装置100与第一实施例基本相同。不同的是,在本实施例中,显示单元142可设于第一连接件134的近端。由于操作人员在操作活检装置100时,活检装置100的近端也即第一连接件134的近端正对着操作人员,因此显示单元142设于第一连接件134的近端能方便操作人员边观察显示单元142的显示情况,根据显示单元142的显示情况控制活检装置100进针,提高活检效率。As shown in FIG. 13 , the biopsy device 100 provided by this embodiment is basically the same as that of the first embodiment. The difference is that in this embodiment, the display unit 142 can be disposed at the proximal end of the first connecting member 134 . Since the operator is operating the biopsy device 100, the proximal end of the biopsy device 100, that is, the proximal end of the first connecting member 134 is facing the operator, so the display unit 142 is arranged at the proximal end of the first connecting member 134 to facilitate the operation of the operator. The display of the display unit 142 is observed, and the needle insertion of the biopsy device 100 is controlled according to the display of the display unit 142 to improve biopsy efficiency.
其他实施例中,显示单元142可包括能显示不同的颜色的指示件。可以理解地,当感应件141检测到针管121所受的阻力超过预设的阈值时,指示灯会显示红色。当感应件141检测到针管121所受的阻力低于预设的阈值时,指示灯会显示绿色。In other embodiments, the display unit 142 may include indicators capable of displaying different colors. Understandably, when the sensor 141 detects that the resistance of the needle tube 121 exceeds a preset threshold, the indicator light will display red. When the sensor 141 detects that the resistance of the needle tube 121 is lower than a preset threshold, the indicator light will turn green.
当然,当感应件141检测到针管121所受的阻力超过预设的阈值时,指示灯也能显示除红色之外的其他颜色。当感应件141检测到针管121所受的阻力低于预设的阈值时,指示灯能显示除绿色之外的其他颜色。只要感应件141检测到针管121所受的阻力低于预设的阈值时,与感应件141检测到针管121所受的阻力超过预设的阈值时指示灯显示的颜色不同即可。即通过指示灯显示不同的颜色提示操作人员针管121对支气管壁的刺穿情况。Of course, when the sensor 141 detects that the resistance of the needle tube 121 exceeds a preset threshold, the indicator light can also display other colors besides red. When the sensor 141 detects that the resistance of the needle tube 121 is lower than a preset threshold, the indicator light can display other colors except green. As long as the sensor 141 detects that the resistance on the needle tube 121 is lower than the preset threshold, the color of the indicator light can be different from that when the sensor 141 detects that the resistance on the needle tube 121 exceeds the preset threshold. That is, different colors displayed by the indicator light prompt the operator to puncture the bronchial wall by the needle tube 121 .
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等,均应包含在本发明 的保护范围之内。The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement or improvement made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (12)

  1. 一种活检装置,其特征在于:包括壳体、抽吸组件、推进组件和感应组件,所述抽吸组件包括可沿轴向移动的针管,所述针管穿设于所述壳体且远端能从所述壳体的远端伸出,所述感应组件与所述推进组件、所述针管连接,以在所述推进组件带动所述针管向目标组织推进的过程中,所述感应组件能检测并反馈所述针管所受到的阻力大小是否超过阈值。A biopsy device, characterized in that it includes a housing, a suction assembly, a propulsion assembly, and an induction assembly, the suction assembly includes a needle tube that can move in the axial direction, and the needle tube passes through the housing and has a distal end Can protrude from the distal end of the housing, the induction assembly is connected with the advancement assembly and the needle tube, so that when the advancement assembly drives the needle tube to advance towards the target tissue, the induction assembly can Detecting and feeding back whether the resistance experienced by the needle tube exceeds a threshold.
  2. 如权利要求1所述的活检装置,其特征在于:所述推进组件包括与所述针管相连的推动件和与所述推动件转动连接的第一转动件,所述第一转动件与所述推动件相对转动以使所述推动件能带动所述针管向目标组织推进。The biopsy device according to claim 1, wherein the advancing assembly comprises a pusher connected to the needle tube and a first rotating member rotatably connected to the pushing member, the first rotating member is connected to the The pusher rotates relatively so that the pusher can drive the needle tube to advance toward the target tissue.
  3. 如权利要求2所述的活检装置,其特征在于:所述感应组件包括感应件,所述感应件位于所述壳体内并设于所述针管的近端和所述推动件之间,以在所述推动件带动所述针管向所述目标组织推进的过程中检测所述针管所受到的阻力大小是否超过阈值。The biopsy device according to claim 2, characterized in that: the sensing assembly includes a sensing element, the sensing element is located in the housing and arranged between the proximal end of the needle tube and the pushing element, so as to When the pusher drives the needle tube toward the target tissue, it is detected whether the resistance experienced by the needle tube exceeds a threshold value.
  4. 如权利要求3所述的活检装置,其特征在于:所述感应件包括与所述推动件固定连接的固定部和设于所述固定部远端的弹性部,所述针管的近端与所述弹性部固定连接,所述针管刺入目标组织受到阻力以带动所述弹性部相对所述固定部在轴向上位移,以检测所述针管所受到的阻力大小是否超过阈值。The biopsy device according to claim 3, wherein the sensing element comprises a fixing part fixedly connected with the pushing part and an elastic part arranged at the distal end of the fixing part, and the proximal end of the needle tube is connected to the The elastic part is fixedly connected, and the needle tube penetrates into the target tissue and receives resistance to drive the elastic part to move axially relative to the fixed part, so as to detect whether the resistance received by the needle tube exceeds a threshold value.
  5. 如权利要求4所述的活检装置,其特征在于:所述推动件的远端设有定位槽,所述固定部容置于所述定位槽内,且所述固定部的近端与所述定位槽的槽底固定连接。The biopsy device according to claim 4, characterized in that: the distal end of the pushing member is provided with a positioning groove, the fixing part is accommodated in the positioning groove, and the proximal end of the fixing part is in contact with the The groove bottom of the positioning groove is fixedly connected.
  6. 如权利要求3所述的活检装置,其特征在于:所述感应组件还包括显示单元,所述显示单元设于所述壳体外,且与所述感应件电连接,以能反映所述感应件检测到的所述针管受到的阻力大小是否超过阈值。The biopsy device according to claim 3, wherein the sensing component further comprises a display unit, the display unit is arranged outside the housing and is electrically connected to the sensing element so as to reflect the Whether the detected resistance of the needle tube exceeds a threshold.
  7. 如权利要求1所述的活检装置,其特征在于:所述抽吸组件还包括穿设于所述壳体的远端的针套,且所述针套的远端突出所述壳体的远端,所述针管沿轴向可活动地穿设于所述针套,所述活检装置还包括调弯组件,用以使所述 针套的远端弯曲。The biopsy device according to claim 1, wherein the suction assembly further comprises a needle sheath passing through the distal end of the housing, and the distal end of the needle sheath protrudes from the distal end of the housing. The needle tube is axially movably passed through the needle sleeve, and the biopsy device further includes a bending assembly for bending the distal end of the needle sleeve.
  8. 如权利要求7所述的活检装置,其特征在于:所述调弯组件包括牵引件,所述牵引件的远端与所述针套的远端固定,以在所述牵引件拉扯时能带动所述针套的远端弯曲。The biopsy device according to claim 7, characterized in that: said bending assembly comprises a traction member, the distal end of said traction member is fixed to the distal end of said needle sheath, so that when said traction member is pulled, it can drive The distal end of the needle guard is curved.
  9. 如权利要求8所述的活检装置,其特征在于:所述调弯组件还包括第二转动件和牵动件,所述牵动件位于所述壳体内并与所述牵引件的近端连接,所述第二转动件套设于所述壳体,且与所述牵动件转动连接,以使所述牵动件能沿轴向移动,以带动所述牵引件拉扯所述针套的远端弯曲。The biopsy device according to claim 8, wherein the bending adjustment assembly further comprises a second rotating member and a pulling member, the pulling member is located in the housing and connected to the proximal end of the pulling member, so The second rotating member is sheathed on the housing and rotatably connected with the pulling member, so that the pulling member can move axially, so as to drive the pulling member to pull the distal end of the needle sheath to bend.
  10. 如权利要求9所述的活检装置,其特征在于:所述调弯组件还包括插设于所述牵动件的压紧件,在所述牵引件的近端穿过所述压紧件后,所述压紧件可相对所述牵动件转动,以使所述牵引件的近端压紧于所述牵动件。The biopsy device according to claim 9, characterized in that: the bending adjustment assembly further comprises a pressing member inserted into the pulling member, after the proximal end of the pulling member passes through the pressing member, The pressing member can rotate relative to the pulling member, so that the proximal end of the pulling member is pressed against the pulling member.
  11. 如权利要求10所述的活检装置,其特征在于:所述牵引件的近端穿过所述压紧件的长度大于或等于所述压紧件的二分之一周长。The biopsy device according to claim 10, characterized in that the length of the proximal end of the traction member passing through the pressing member is greater than or equal to half of the circumference of the pressing member.
  12. 如权利要求7所述的活检装置,其特征在于:所述推进组件和所述调弯组件之间设有密封结构。The biopsy device according to claim 7, wherein a sealing structure is provided between the advancing assembly and the bending adjustment assembly.
PCT/CN2022/141771 2021-12-29 2022-12-26 Biopsy device WO2023125356A1 (en)

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CN116869582B (en) * 2023-09-01 2023-11-28 浙江首鼎医学科技有限公司 Biopsy needle sampling device based on puncture resistance

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040267121A1 (en) * 2003-06-12 2004-12-30 Sarvazyan Armen P. Device and method for biopsy guidance using a tactile breast imager
CN102209568A (en) * 2008-09-15 2011-10-05 压电共振创新股份有限公司 Medical tool for reduced penetration force with feedback means
CN103285501A (en) * 2013-05-08 2013-09-11 纪华雷 Intelligent-positioning intraosseous infusion puncture system
US20140180164A1 (en) * 2012-12-21 2014-06-26 Cook Medical Technologies Llc Targetable biopsy needle set and method of using same
CN107981895A (en) * 2017-11-24 2018-05-04 四川弘毅智慧知识产权运营有限公司 A kind of medullo-puncture needle that can detect pressure change
CN111248947A (en) * 2018-11-30 2020-06-09 杭州堃博生物科技有限公司 Bendable biopsy needle and biopsy system
CN210871925U (en) * 2019-06-25 2020-06-30 杭州德柯医疗科技有限公司 Bend adjusting assembly and catheter system with same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040267121A1 (en) * 2003-06-12 2004-12-30 Sarvazyan Armen P. Device and method for biopsy guidance using a tactile breast imager
CN102209568A (en) * 2008-09-15 2011-10-05 压电共振创新股份有限公司 Medical tool for reduced penetration force with feedback means
US20140180164A1 (en) * 2012-12-21 2014-06-26 Cook Medical Technologies Llc Targetable biopsy needle set and method of using same
CN103285501A (en) * 2013-05-08 2013-09-11 纪华雷 Intelligent-positioning intraosseous infusion puncture system
CN107981895A (en) * 2017-11-24 2018-05-04 四川弘毅智慧知识产权运营有限公司 A kind of medullo-puncture needle that can detect pressure change
CN111248947A (en) * 2018-11-30 2020-06-09 杭州堃博生物科技有限公司 Bendable biopsy needle and biopsy system
CN210871925U (en) * 2019-06-25 2020-06-30 杭州德柯医疗科技有限公司 Bend adjusting assembly and catheter system with same

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