CN103654872A - Reusable self-synchronizing negative pressure type biopsy sampling device - Google Patents

Abstract

Translated fromChinese

本发明公开了一种可重复使用的自动同步负压式活检取样装置，包括活塞筒、回弹旋钮、开关，所述活塞筒内腔套在活塞杆上，所述活塞筒与所述活塞杆之间设置有活塞弹簧，所述活塞杆头部设置有橡胶圈，所述活塞杆通过螺钉与回弹保持架连接，所述回弹保持架与外壳之间设置有回弹弹簧，所述回弹旋钮通过回弹旋钮转轴与回弹连杆连接，所述回弹连杆连接通过回弹连杆转轴固定于外壳上，所述开关通过开关转轴与触发连杆连接，所述触发连杆通过触发连杆转轴固定于外壳上。本发明在人体的停留时间短，病人疼痛感少，并且创伤小、取样完整，活检装置可多次重复使用，且无需消毒，只需更换穿刺针，操作方便节约时间。

The invention discloses a reusable automatic synchronous negative pressure biopsy sampling device, which comprises a piston cylinder, a rebound knob and a switch. A piston spring is arranged between them, and a rubber ring is arranged on the head of the piston rod. The elastic knob is connected to the rebound connecting rod through the rebound knob rotating shaft, and the rebound connecting rod is fixed on the shell through the rebound connecting rod rotating shaft, and the switch is connected to the trigger connecting rod through the switch rotating shaft, and the trigger connecting rod passes through The rotating shaft of the trigger link is fixed on the shell. The invention has short residence time in the human body, less pain for the patient, less trauma, and complete sampling. The biopsy device can be used repeatedly without disinfection, and only needs to replace the puncture needle, which is convenient to operate and saves time.

Description

Translated fromChinese

可重复使用的自动同步负压式活检取样装置Reusable Automatic Synchronous Negative Pressure Biopsy Sampling Device

技术领域technical field

本发明涉及一种活检取样领域，具体涉及一种可重复使用的自动同步负压式活检取样装置。The invention relates to the field of biopsy sampling, in particular to a reusable automatic synchronous negative pressure biopsy sampling device.

背景技术Background technique

目前，国内开展的穿刺活检手术采用的方法有两种，一种采用切割式的活检枪（如专利号200720024214.8和200920121078.3），另一种是采用负压式的活检枪（如专利号97247829.9）。前者主要的问题在于切割式取样对病人的创伤比负压式的要大。后者存在的问题是，操作不便，在穿刺针进入人体后，还需要通过撤一次针来进行下一步的取样动作，对操作人员的有较高的要求，穿刺针进入人体的时间长。At present, there are two methods used in needle biopsy operations in China, one using cutting biopsy guns (such as patent Nos. 200720024214.8 and 200920121078.3), and the other using negative pressure biopsy guns (such as patent No. 97247829.9). The main problem of the former is that the cutting type sampling is more traumatic to the patient than the negative pressure type. The problem of the latter is that it is inconvenient to operate. After the puncture needle enters the human body, it is necessary to withdraw the needle once to carry out the next sampling action, which has higher requirements for the operator, and the time for the puncture needle to enter the human body is long.

发明内容Contents of the invention

本发明的目的在于克服现有技术存在的以上问题，提供一种可重复使用的自动同步负压式活检取样装置，本发明在人体的停留时间短，病人疼痛感少，并且创伤小、取样完整，活检装置可多次重复使用，且无需消毒，只需更换穿刺针，操作方便节约时间。The purpose of the present invention is to overcome the above problems in the prior art and provide a reusable automatic synchronous negative pressure biopsy sampling device. The present invention has a short residence time in the human body, less pain for the patient, less trauma and complete sampling , The biopsy device can be reused many times without disinfection, and only needs to replace the puncture needle, which is convenient to operate and saves time.

为实现上述技术目的，达到上述技术效果，本发明通过以下技术方案实现：In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:

可重复使用的自动同步负压式活检取样装置，包括活塞筒、回弹旋钮、开关，所述活塞筒内腔套在活塞杆上，所述活塞筒与所述活塞杆之间设置有活塞弹簧，所述活塞杆头部设置有凹槽，并设置有橡胶圈，所述活塞杆头部还设置有穿刺针管座、穿刺针内芯和穿刺针管，所述活塞杆通过螺钉与回弹保持架连接，所述回弹保持架与外壳之间设置有回弹弹簧，所述回弹旋钮通过回弹旋钮转轴与回弹连杆连接，所述回弹连杆连接通过回弹连杆转轴固定于外壳上，所述开关通过开关转轴与触发连杆连接，所述触发连杆通过触发连杆转轴固定于外壳上。A reusable automatic synchronous negative pressure biopsy sampling device, including a piston barrel, a rebound knob, and a switch, the inner cavity of the piston barrel is sleeved on the piston rod, and a piston spring is arranged between the piston barrel and the piston rod , the piston rod head is provided with a groove, and is provided with a rubber ring, and the piston rod head is also provided with a puncture needle tube seat, a puncture needle inner core and a puncture needle tube, and the piston rod is connected with a rebound retainer by a screw connection, a rebound spring is arranged between the rebound cage and the shell, the rebound knob is connected to the rebound link through the rebound knob shaft, and the rebound link is fixed to the On the shell, the switch is connected to the trigger link through the switch shaft, and the trigger link is fixed on the shell through the trigger link shaft.

进一步的，所述触发连杆的一端为钩状。Further, one end of the trigger link is hook-shaped.

进一步的，所述活塞筒在所述触发连杆的一面设置有凸起端。Further, the piston barrel is provided with a protruding end on one side of the trigger link.

本发明的有益效果是：The beneficial effects of the present invention are:

1）可重复使用，且无需对主机进行消毒。只需更换一套穿刺针（包括穿刺针管、穿刺针内芯和穿刺针管座）。1) It is reusable and does not need to sterilize the host. Just replace a set of puncture needles (including puncture needle tube, puncture needle core and puncture needle tube seat).

2）穿刺的同时与负压同步产生。负压恒定，故抽取的组织完整均匀，不会因人为的负压过早、过晚、过大、过小而抽吸不出，或造成组织的破坏。2) Simultaneously generate negative pressure while puncturing. The negative pressure is constant, so the extracted tissue is complete and uniform, and the artificial negative pressure will not be sucked too early, too late, too large, or too small, or the tissue will be damaged.

3）自动同步负压式活检取样装置只需单手即可完成整个取样过程，按动一个按钮即可完成所有操作，操作简单，对人员的操作要求比较低。3) The automatic synchronous negative pressure biopsy sampling device can complete the entire sampling process with only one hand, and all operations can be completed by pressing a button. The operation is simple and the operation requirements for personnel are relatively low.

4）穿刺针管进针速度很快，取样完成后，穿刺针管也迅速从器官中退出，这样使得穿刺针管在器官中停留的时间极短，从而减少穿刺针管对人体的创伤。4) The needle insertion speed of the puncture needle is very fast. After the sampling is completed, the puncture needle is also withdrawn from the organ quickly, which makes the puncture needle stay in the organ for a very short time, thereby reducing the trauma of the puncture needle to the human body.

5）在活塞弹簧的作用下，负压产生后不会消失，使得被取组织能储藏在穿刺针管中。5) Under the action of the piston spring, the negative pressure will not disappear after being generated, so that the collected tissue can be stored in the puncture needle tube.

6）从后部推动活塞杆可以将取样组织从穿刺针管中“吐出”的同时，实现了活检取样装置的复位。6) Pushing the piston rod from the rear can "spit out" the sampled tissue from the puncture needle tube, and at the same time realize the reset of the biopsy sampling device.

7）上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。7) The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention and accompanying drawings. . The specific embodiment of the present invention is given in detail by the following examples and accompanying drawings.

附图说明Description of drawings

此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

图1为本发明未装穿刺针管和穿刺针内芯时的示意图。Fig. 1 is a schematic diagram of the present invention without a puncture needle tube and a puncture needle inner core.

图2为本发明处于发射状态时的全剖示意图。Fig. 2 is a schematic diagram of a full cross-section of the present invention when it is in a launching state.

图3为本发明处于发射状态时的局部放大示意图。Fig. 3 is a partially enlarged schematic diagram of the present invention in a transmitting state.

图4为本发明穿刺针管刺入人体器官取样的示意图。Fig. 4 is a schematic diagram of the puncture needle tube of the present invention piercing human organs for sampling.

图5为本发明穿刺后，回弹前的示意图。Fig. 5 is a schematic diagram of the present invention after puncture and before rebound.

图6为本发明完成取样后的示意图。Fig. 6 is a schematic diagram of the present invention after sampling.

图中标号说明：1、回弹旋钮，2、回弹旋钮转轴，3、回弹连杆转轴，4、回弹连杆，6、触发连杆转轴，7、触发连杆，8、开关，9、开关转轴，10、外壳，13、橡胶圈，14、活塞杆，15、活塞筒，16、回弹保持架，17、活塞弹簧，18、回弹弹簧，19、螺钉，20、人体器官，21、人体组织，22、凸起端。Explanation of symbols in the figure: 1. Rebound knob, 2. Rebound knob shaft, 3. Rebound link shaft, 4. Rebound link, 6. Trigger link shaft, 7. Trigger link, 8. Switch, 9. Switch shaft, 10. Shell, 13. Rubber ring, 14. Piston rod, 15. Piston barrel, 16. Rebound cage, 17. Piston spring, 18. Rebound spring, 19. Screw, 20. Human organ , 21, human tissue, 22, raised end.

具体实施方式Detailed ways

下面将参考附图并结合实施例，来详细说明本发明。The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

参照图1与图2所示，可重复使用的自动同步负压式活检取样装置，包括活塞筒15、回弹旋钮1、开关8，所述活塞筒15内腔套在活塞杆14上，所述活塞筒15与所述活塞杆14之间设置有活塞弹簧17，所述活塞杆14头部设置有凹槽，并设置有橡胶圈13，所述活塞杆14头部还设置有穿刺针管座11、穿刺针内芯12和穿刺针管5，所述活塞杆14通过螺钉19与回弹保持架16连接，所述回弹保持架16与外壳10之间设置有回弹弹簧18，所述回弹旋钮1通过回弹旋钮转轴2与回弹连杆连接4，所述回弹连杆连接4通过回弹连杆转轴3固定于外壳10上，所述开关通过开关转轴9与触发连杆7连接，所述触发连杆7通过触发连杆转轴7固定于外壳10上。Referring to Figures 1 and 2, the reusable automatic synchronous negative pressure biopsy sampling device includes apiston cylinder 15, a rebound knob 1, and a switch 8. A piston spring 17 is arranged between thepiston barrel 15 and thepiston rod 14, the head of thepiston rod 14 is provided with a groove, and arubber ring 13 is provided, and the head of thepiston rod 14 is also provided with a puncture needle socket 11. Theinner core 12 of the puncture needle and thepuncture needle tube 5, thepiston rod 14 is connected with therebound retainer 16 through ascrew 19, and arebound spring 18 is arranged between therebound retainer 16 and theshell 10, and the rebound The elastic knob 1 is connected to the rebound connecting rod 4 through the rebound knob rotating shaft 2. The rebound connecting rod connection 4 is fixed on theshell 10 through the rebound connecting rod rotating shaft 3. The switch is connected to the trigger connecting rod 7 through the switch rotating shaft 9. The trigger link 7 is fixed on thecasing 10 through the trigger link rotating shaft 7 .

进一步的，所述触发连杆7的一端为钩状。Further, one end of the trigger link 7 is hook-shaped.

进一步的，：所述活塞筒15在所述触发连杆7的一面设置有凸起端22。Further, thepiston cylinder 15 is provided with a protruding end 22 on one side of the trigger link 7 .

本实施例的工作原理如下：The working principle of this embodiment is as follows:

如图1所示为自动同步负压式活检取样装置全剖视图未装穿刺针管5和穿刺针内芯12。将穿刺针管5和穿刺针内芯12分别安装在活塞筒15和活塞杆14头部上，完成自动同步负压式活检取样装置的穿刺前的准备工作，如图3所示。此时活塞弹簧17处于压缩状态，弹性恢复力约为12N~16N；回弹弹簧16处于压缩状态，弹性恢复力约为12N~16N。活塞筒15内腔套在活塞杆14上，两个零件同轴，活塞筒15只能在活塞杆14轴向移动，橡胶圈13套在活塞杆14头部凹槽上，用于活塞杆14与活塞筒15之间的密封。活塞筒15在活塞弹簧17的作用下有向左的运动趋势，触发连杆7卡住活塞筒15，限制其向左的运动。活塞杆14与回弹保持架16通过螺钉19固定。回弹保持架16与外壳内孔同轴，只能在其轴向移动。回弹保持架16在回弹弹簧16的作用下有向右的移动趋势。回弹连杆4卡住回弹保持架16限制其向右的运动。回弹旋钮转轴2，回弹连杆转轴3，触发连杆转轴6固定在外壳10上。触发连杆7可以绕触发连杆转轴6旋转；回弹连杆4可以绕回弹连杆转轴3旋转。回弹旋钮1可以绕回弹旋钮转轴2旋转。As shown in FIG. 1 , it is a full sectional view of an automatic synchronous negative pressure biopsy sampling device without apuncture needle tube 5 and a puncture needleinner core 12 . Install thepuncture needle tube 5 and the puncture needleinner core 12 on the head of thepiston barrel 15 and thepiston rod 14 respectively to complete the preparatory work before the puncture of the automatic synchronous negative pressure biopsy sampling device, as shown in FIG. 3 . At this time, the piston spring 17 is in a compressed state, and its elastic restoring force is about 12N~16N; therebound spring 16 is in a compressed state, and its elastic restoring force is about 12N~16N. The inner cavity of thepiston barrel 15 is set on thepiston rod 14, the two parts are coaxial, thepiston barrel 15 can only move axially in thepiston rod 14, therubber ring 13 is set on the groove of the head of thepiston rod 14, and is used for thepiston rod 14 and the seal between thepiston cylinder 15. Thepiston cylinder 15 has a tendency to move to the left under the action of the piston spring 17, and the trigger connecting rod 7 blocks thepiston cylinder 15 to limit its leftward movement.Piston rod 14 and reboundretainer 16 are fixed byscrew 19. Therebound cage 16 is coaxial with the housing inner hole and can only move in its axial direction. Therebound cage 16 has a tendency to move to the right under the action of therebound spring 16 . The rebound link 4 blocks therebound cage 16 to limit its rightward movement. The rebound knob rotating shaft 2, the rebound connecting rod rotating shaft 3, and the trigger connecting rod rotating shaft 6 are fixed on theshell 10. The trigger link 7 can rotate around the trigger link shaft 6 ; the rebound link 4 can rotate around the rebound link shaft 3 . The rebound knob 1 can rotate around the rebound knob rotating shaft 2 .

将穿刺针刺入人体器官20，通过B超将穿刺针定位到适当位置后。按动开关8，触发连杆7转动，其头部从活塞筒15头部脱开。在活塞弹簧17的弹力作用下，活塞筒15带着穿刺针管5向前运动，活塞杆14与穿刺针内芯12固定不动，活塞筒15内产生负压，由于穿刺针管5与活塞筒15内腔连通，因此穿刺针管5内也产生负压。与此同时，穿刺针管5向前运动，在负压作用下人体组织进入穿刺针管5，如图4所示。The puncture needle is inserted into thehuman organ 20, and the puncture needle is positioned at an appropriate position by B-ultrasound. Press the switch 8, the trigger connecting rod 7 rotates, and its head disengages from thepiston barrel 15 head. Under the elastic force of the piston spring 17, thepiston barrel 15 moves forward with thepuncture needle tube 5, thepiston rod 14 and the puncture needleinner core 12 are fixed, and a negative pressure is generated in thepiston barrel 15. Due to thepuncture needle tube 5 and thepiston barrel 15 The inner cavity is connected, so negative pressure is also generated in thepuncture needle tube 5 . At the same time, thepuncture needle tube 5 moves forward, and the human tissue enters thepuncture needle tube 5 under the action of negative pressure, as shown in FIG. 4 .

如图5所示，当活塞筒14运动到终点时，其头部将回弹旋钮1顶开，回弹旋钮1使回弹连杆4从回弹保持架16头部脱开。在回弹弹簧18的作用下，回弹保持架16带着穿刺针管5、活塞筒15、穿刺针内芯12、活塞杆14一起向后运动，实现退针，如图6所示。As shown in FIG. 5 , when thepiston barrel 14 moves to the end point, its head pushes the rebound knob 1 away, and the rebound knob 1 disengages the rebound connecting rod 4 from the head of therebound cage 16 . Under the action of therebound spring 18, therebound cage 16 moves backward together with thepuncture needle tube 5, thepiston barrel 15, the puncture needleinner core 12, and thepiston rod 14 to realize needle withdrawal, as shown in FIG. 6 .

接着可以将自动同步负压式活检取样装置从人体拔出，从后部推动活塞杆14可以将取样的人体组织21从穿刺针管中“吐出”，更换穿刺针管和穿刺针内芯即可进行下一次取样。Then the automatic synchronous negative pressure biopsy sampling device can be pulled out from the human body, thepiston rod 14 can be pushed from the rear to "spit out" the sampledhuman tissue 21 from the puncture needle tube, and the puncture needle tube and the puncture needle inner core can be replaced. One sample.

以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (3)

1. reusable automatic synchronous negative-pressure formula sampling device for biopsy, it is characterized in that: comprise piston cylinder (15), resilience knob (1), switch (8), described piston cylinder (15) inner chamber is enclosed within on piston rod (14), between described piston cylinder (15) and described piston rod (14), be provided with piston spring (17), described piston rod (14) head is provided with groove, and be provided with rubber ring (13), described piston rod (14) head is also provided with puncture needle base (11), puncture needle inner core (12) and puncture needle tubing (5), described piston rod (14) is connected with resilience retainer (16) by screw (19), between described resilience retainer (16) and shell (10), be provided with rebound spring (18), described resilience knob (1) is connected (4) by resilience knob rotating shaft (2) with resilience connecting rod, described resilience connecting rod connects (4) and is fixed on shell (10) by resilience connecting rod rotating shaft (3), described switch is connected with triggering connecting rod (7) by switch rotating shaft (9), described triggering connecting rod (7) is fixed on shell (10) by triggering connecting rod rotating shaft (7).

2. reusable automatic synchronous negative-pressure formula sampling device for biopsy according to claim 1, is characterized in that: one end of described triggering connecting rod (7) is hook-shaped.

3. reusable automatic synchronous negative-pressure formula sampling device for biopsy according to claim 1, is characterized in that: described piston cylinder (15) is provided with protruding end (22) in the one side of described triggering connecting rod (7).

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