技术领域technical field
本发明是一种乳腺组织穿刺活检针，属于医疗器械技术领域。The invention relates to a breast tissue puncture biopsy needle, which belongs to the technical field of medical instruments.
背景技术Background technique
近年来，乳腺疾病尤其是乳腺癌发病率逐年增高，严重危害女性健康。组织穿刺活检是判别乳腺良恶性疾病的关键手段，已被广泛应用于临床实践。现有的穿刺活检针包括针座、设置在针座上的穿刺针套和套设于穿刺针套内的活检针，活检针的前端设有凹口，在活检针的前端向穿刺针套内快速缩回的过程中，所述凹口将活体组织切取下来，并收纳于凹口与穿刺针套形成的空间内。存在的问题是：由于凹口的长度不能开得过长、深度不能开得过深，导致凹口每次切取的活体组织较少，一般需要经过4～5次的反复穿刺提取活检组织，才能提取出活检所用的需求量，这样不仅增加了病人的痛苦，而且还增大了医生的工作量。In recent years, the incidence of breast diseases, especially breast cancer, has been increasing year by year, seriously endangering women's health. Tissue biopsy is a key method to distinguish benign and malignant breast diseases, and has been widely used in clinical practice. Existing puncture biopsy needles include a needle base, a puncture needle cover arranged on the needle base, and a biopsy needle sheathed in the puncture needle cover. During the rapid retraction, the notch cuts off the living tissue and stores it in the space formed by the notch and the puncture needle cover. The existing problem is: because the length of the notch can not be too long, the depth can not be too deep, resulting in less living tissue cut each time the notch, generally need to go through 4 to 5 times of repeated puncture to extract biopsy tissue, in order to The demand for biopsy is extracted, which not only increases the pain of the patient, but also increases the workload of the doctor.
发明内容Contents of the invention
有鉴于此，本发明目的是提供一种乳腺组织穿刺活检针，只需一次穿刺即可提取出活检所需的活体组织量，既减轻了病人的痛苦，又减少了医生的工作量。In view of this, the purpose of the present invention is to provide a breast tissue puncture biopsy needle, which can extract the amount of living tissue required for biopsy with only one puncture, which not only relieves the pain of the patient, but also reduces the workload of the doctor.
为了实现上述目的，本发明通过如下的技术方案来实现：一种乳腺组织穿刺活检针，包括针座、后端固定在针座上的针套和套设于针套内的活检针，所述活检针包括针管和前端位于针管内、后端伸出于针管外的拉杆，所述拉杆与针管保持密封，所述针管的前端沿其周向均布有多条切割刃和开有多个位于两相邻切割刃之间、且与针管连通的抽吸通道，针管的前端可收纳于针套内，还包括设置在针座上用于带动针管转动的传动件和用于驱动所述传动件转动的驱动装置，针管的后端伸出于针套外、且穿过所述传动件，针管可沿其轴向在传动件上滑动。In order to achieve the above object, the present invention is achieved through the following technical solutions: a breast tissue puncture biopsy needle, comprising a needle base, a needle sleeve whose rear end is fixed on the needle base, and a biopsy needle sleeved in the needle sleeve. The biopsy needle includes a needle tube and a pull rod whose front end is located in the needle tube and whose rear end protrudes outside the needle tube. The pull rod is kept sealed with the needle tube. Adjacent to the suction channel between the cutting blades and in communication with the needle tube, the front end of the needle tube can be accommodated in the needle cover, and also includes a transmission part arranged on the needle seat for driving the needle tube to rotate and a transmission part for driving the transmission part to rotate In the driving device, the rear end of the needle tube protrudes from the needle cover and passes through the transmission part, and the needle tube can slide on the transmission part along its axial direction.
进一步地，所述针管的管孔的横截面为正多边形，所述拉杆包括位于其前端的导向段和位于其后端的丝杠段，所述导向段与针管的管孔形状相适应、从而与针管形成密封配合，在针座上固接有一与所述丝杠段螺纹配合的螺母。Further, the cross-section of the tube hole of the needle tube is a regular polygon, and the pull rod includes a guide section at its front end and a lead screw section at its rear end, and the guide section is adapted to the shape of the tube hole of the needle tube, so as to be compatible with The needle tube forms a sealed fit, and a nut that is threadedly engaged with the lead screw section is fixedly connected to the needle seat.
进一步地，所述传动件成管状，传动件的一端被支撑在针座上、且可绕自身轴线转动，所述驱动装置为平面涡卷弹簧，所述平面涡卷弹簧一端与传动件的另一端连接、另一端与针座连接。Further, the transmission part is in the shape of a tube, one end of the transmission part is supported on the needle seat and can rotate around its own axis, the driving device is a planar scroll spring, and one end of the planar scroll spring is connected to the other end of the transmission part. One end is connected and the other end is connected to the pin header.
进一步地，所述传动件的另一端套设有便于转动传动件的调节手柄。Further, the other end of the transmission member is sheathed with an adjustment handle for easy rotation of the transmission member.
本发明的有益效果：本发明的一种乳腺组织穿刺活检针，包括针座、后端固定在针座上的针套和套设于针套内的活检针，所述活检针包括针管和前端位于针管内、后端伸出于针管外的拉杆，所述拉杆与针管保持密封，所述针管的前端沿其周向均布有多条切割刃和开有多个位于两相邻切割刃之间、且与针管连通的抽吸通道，针管的前端可收纳于针套内，还包括设置在针座上用于带动针管转动的传动件和用于驱动所述传动件转动的驱动装置，针管的后端伸出于针套外、且穿过所述传动件，针管可沿其轴向在传动件上滑动。该结构的穿刺活检针，只需一次穿刺即可提取出活检所需的活体组织量，既减轻了病人的痛苦，又减少了医生的工作量。Beneficial effects of the present invention: a breast tissue puncture biopsy needle of the present invention comprises a needle base, a needle sleeve whose rear end is fixed on the needle base, and a biopsy needle sheathed in the needle sleeve, and the biopsy needle comprises a needle tube and a front end A pull rod located inside the needle tube with its rear end protruding from the outside of the needle tube. The pull rod is kept sealed with the needle tube. The front end of the needle tube is evenly distributed along its circumference with a plurality of cutting edges and a plurality of cutting edges located between two adjacent cutting edges. And the suction channel connected with the needle tube, the front end of the needle tube can be accommodated in the needle cover, and also includes a transmission part arranged on the needle seat for driving the rotation of the needle tube and a driving device for driving the rotation of the transmission part, the rear of the needle tube The end protrudes from the needle cover and passes through the transmission part, and the needle tube can slide on the transmission part along its axial direction. The puncture biopsy needle with this structure can extract the amount of living tissue required for biopsy with only one puncture, which not only relieves the pain of the patient, but also reduces the workload of the doctor.
附图说明Description of drawings
图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式detailed description
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施方式，进一步阐述本发明。In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
请参阅图1，本发明提供一种技术方案：一种乳腺组织穿刺活检针，包括针座10、后端固定在针座10上的针套20和套设于针套20内的活检针30，活检针30长于针套20，所述活检针30包括针管31和前端位于针管31内、后端伸出于针管31外的拉杆32，所述拉杆32与针管31保持密封，拉杆32长于针管31，针管31的前端沿其周向均布有多条切割刃311和开有多个位于两相邻切割刃311之间、且与针管31连通的抽吸通道312，针管31的前端设有凹部，切割刃311安装在所述凹部处，切割刃311为长条形，抽吸通道312的长度与切割刃311的长度大致相同，优选切割刃311的条数为两条，对应的，抽吸通道312为两个，优选针管31的前端端部为盲端，针管31的前端可收纳于针套20内，即拉动针管31可使切割刃311收纳于针套20内，还包括设置在针座10上用于带动针管31转动的传动件40和用于驱动所述传动件40转动的驱动装置50，针管31的后端伸出于针套20外、且穿过所述传动件40，针管31可沿其轴向在传动件40上滑动，具体地，针管31后端的管外壁上设有与针管31一体成型的传动块313，传动件40内开有贯穿其长度方向、且与传动块313相对应的滑槽41，传动块313也起到限位的作用，即当传动块313的前端与针套20的后端面抵接时，针管31不再向前伸出。传动件40的动力经传动块313传递给针管31，而针管31也可以沿滑槽41的长度方向滑动，当然滑槽41的长度方向与针管31的轴向平行。Please refer to Fig. 1, the present invention provides a technical solution: a breast tissue puncture biopsy needle, including a needle base 10, a needle cover 20 whose rear end is fixed on the needle base 10, and a biopsy needle 30 sleeved in the needle cover 20 , the biopsy needle 30 is longer than the needle sheath 20, the biopsy needle 30 includes a needle tube 31 and a pull rod 32 whose front end is located in the needle tube 31 and whose rear end protrudes outside the needle tube 31, the pull rod 32 is kept sealed with the needle tube 31, and the pull rod 32 is longer than the needle tube 31, the front end of the needle tube 31 has a plurality of cutting edges 311 evenly distributed along its circumference and a plurality of suction passages 312 located between two adjacent cutting edges 311 and communicated with the needle tube 31, the front end of the needle tube 31 is provided with a concave portion, The cutting edge 311 is installed in the recess, the cutting edge 311 is elongated, the length of the suction channel 312 is approximately the same as the length of the cutting edge 311, preferably the number of cutting edges 311 is two, correspondingly, the suction channel 312 is two, preferably the front end of the needle tube 31 is a blind end, the front end of the needle tube 31 can be accommodated in the needle sheath 20, that is, the cutting edge 311 can be accommodated in the needle sheath 20 by pulling the needle tube 31, and the 10 is used to drive the transmission member 40 for rotating the needle tube 31 and the driving device 50 for driving the rotation of the transmission member 40. The rear end of the needle tube 31 protrudes outside the needle sheath 20 and passes through the transmission member 40. The needle tube 31 can slide on the transmission part 40 along its axial direction, specifically, the outer wall of the tube at the rear end of the needle tube 31 is provided with a transmission block 313 integrally formed with the needle tube 31, and the transmission part 40 is provided with a hole that runs through its length direction and is connected with the transmission block. 313 corresponds to the chute 41, and the transmission block 313 also acts as a limiter, that is, when the front end of the transmission block 313 abuts against the rear end surface of the needle sheath 20, the needle tube 31 no longer protrudes forward. The power of the transmission member 40 is transmitted to the needle tube 31 through the transmission block 313 , and the needle tube 31 can also slide along the length direction of the chute 41 . Of course, the length direction of the chute 41 is parallel to the axial direction of the needle tube 31 .
工作原理：穿刺前，将拉杆32前端推至针管31前端内部，然后向后拉动针管31，使针管31前端收纳与针套20内。穿刺时，先将针套20穿刺入活体组织内，然后向前推出针管31，接着启动驱动装置50，带动传动件40转动，传动件40带动针管31转动，针管31转动过程中其前端将活体组织切下，然后向后拉动拉杆32，由于拉杆32与针管31保持密封，拉杆32向后移动过程中产生负压，从而将切割刃311切下的活体组织经抽吸通道312吸入针管31内，进而实现活体组织的提取工作。Working principle: before puncturing, push the front end of the pull rod 32 to the inside of the front end of the needle tube 31 , and then pull the needle tube 31 backward so that the front end of the needle tube 31 is stored in the needle sheath 20 . When puncturing, the needle sheath 20 is first punctured into the living tissue, and then the needle tube 31 is pushed forward, and then the driving device 50 is started to drive the transmission part 40 to rotate, and the transmission part 40 drives the needle tube 31 to rotate, and the front end of the needle tube 31 rotates the living body The tissue is cut off, and then the pull rod 32 is pulled backward. Since the pull rod 32 is sealed with the needle tube 31, the pull rod 32 generates negative pressure during the backward movement, so that the living tissue cut by the cutting edge 311 is sucked into the needle tube 31 through the suction channel 312 , and then realize the extraction of living tissue.
为避免拉杆32在针管31内向后移动过程中，拉杆32可能会带动转动中的针管31向后小幅度移动，优选拉杆32在针管31内的移动阻力小于针管31在传动件40内的移动阻力。In order to prevent the pull rod 32 from moving backward in the needle tube 31 , the pull rod 32 may drive the rotating needle tube 31 to move backward in a small range. .
本实施例的一种穿刺活检针30，只需一次穿刺即可提取出活检所需的活体组织量，既减轻了病人的痛苦，又减少了医生的工作量。The puncture biopsy needle 30 of this embodiment can extract the amount of living tissue required for biopsy with only one puncture, which not only reduces the pain of the patient, but also reduces the workload of the doctor.
作为上述方案的进一步改进，所述针管31的管孔的横截面为正多边形，优选正六边形，所述拉杆32包括位于其前端的导向段321和位于其后端的丝杠段322，所述导向段321与针管31的管孔形状相适应、从而与针管31形成密封配合，即导向段321的形状与针管31的管孔形状相同、大小一致，当然为保证密封效果，可在导向段321的周面开一沟槽，在所述沟槽内嵌入密封圈，在针座10上固接有一与所述丝杠段322螺纹配合的螺母60，螺母60的轴线与针管31的轴线共线。当针管31被驱动旋转时，针管31与拉杆32上的导向段321形成传动配合，从而带动拉杆32转动，拉杆32转动过程中丝杠段322与螺母60也形成传动配合，由于螺母60固定不动，因此拉杆32相对螺母60沿拉杆32的轴向向后移动，最终，拉杆32在针管31内转动过程中向后移动，移动过程中将切下的活检组织吸入针管31内。通过上述设置，驱动针管31转动的同时就完成了吸取活检组织的动作，减少了医生的操作步骤，也避免了越多的操作步骤给提取活检组织带来的不利，即给患者造成额外的痛苦。As a further improvement of the above scheme, the cross-section of the tube hole of the needle tube 31 is a regular polygon, preferably a regular hexagon, and the pull rod 32 includes a guide section 321 at its front end and a screw section 322 at its rear end. The guide section 321 is adapted to the shape of the tube hole of the needle tube 31, thereby forming a sealing fit with the needle tube 31, that is, the shape of the guide section 321 is the same as the shape and size of the tube hole of the needle tube 31. Of course, in order to ensure the sealing effect, the guide section 321 can A groove is opened on the peripheral surface of the groove, and a sealing ring is embedded in the groove, and a nut 60 threaded with the screw section 322 is fixed on the needle holder 10, and the axis of the nut 60 is collinear with the axis of the needle tube 31 . When the needle tube 31 is driven to rotate, the needle tube 31 forms a transmission fit with the guide section 321 on the pull rod 32, thereby driving the pull rod 32 to rotate. During the rotation of the pull rod 32, the screw section 322 also forms a drive fit with the nut 60, because the nut 60 is not fixed. Therefore, the pull rod 32 moves backward relative to the nut 60 along the axial direction of the pull rod 32. Finally, the pull rod 32 moves backward during the rotation in the needle tube 31, and the cut biopsy tissue is sucked into the needle tube 31 during the movement. Through the above-mentioned setting, the action of aspirating the biopsy tissue is completed while the needle tube 31 is driven to rotate, which reduces the doctor's operation steps, and also avoids the disadvantage of more operation steps for extracting the biopsy tissue, that is, causing additional pain to the patient .
作为上述方案的进一步改进，所述传动件40成管状，传动件40的一端被支撑在针座10上、且可绕自身轴线转动，所述驱动装置50为平面涡卷弹簧，所述平面涡卷弹簧一端与传动件40的另一端连接、另一端与针座10连接。穿刺时，向前推出针管31前，先手动转动传动件40，使平面涡卷弹簧积聚弹性势能，然后保持传动件40不动，接着向前推出针管31，然后松开传动件40，在平面涡卷弹簧的弹性势能的作用下，传动件40带动针管31转动，从而同步完成切取和抽吸活体组织的动作。As a further improvement of the above scheme, the transmission member 40 is tubular, one end of the transmission member 40 is supported on the needle hub 10 and can rotate around its own axis, the driving device 50 is a planar scroll spring, and the planar scroll One end of the coil spring is connected to the other end of the transmission member 40 , and the other end is connected to the needle holder 10 . When puncturing, before pushing out the needle tube 31 forward, first manually rotate the transmission part 40, so that the planar scroll spring accumulates elastic potential energy, then keep the transmission part 40 still, then push out the needle tube 31 forward, then loosen the transmission part 40, Under the action of the elastic potential energy of the scroll spring, the transmission member 40 drives the needle tube 31 to rotate, thereby completing the actions of cutting and sucking the living tissue synchronously.
作为上述方案的进一步改进，所述传动件40的另一端套设有便于转动传动件40的调节手柄70。As a further improvement of the above solution, the other end of the transmission member 40 is sheathed with an adjustment handle 70 to facilitate the rotation of the transmission member 40 .
以上显示和描述了本发明的基本原理和主要特征和本发明的优点,对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or fundamentals of the present invention. The present invention can be implemented in other specific forms without any specific features. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention.
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611038403.0ACN106691550A (en) | 2016-11-23 | 2016-11-23 | Breast tissue puncture biopsy needle |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611038403.0ACN106691550A (en) | 2016-11-23 | 2016-11-23 | Breast tissue puncture biopsy needle |
| Publication Number | Publication Date |
|---|---|
| CN106691550Atrue CN106691550A (en) | 2017-05-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611038403.0APendingCN106691550A (en) | 2016-11-23 | 2016-11-23 | Breast tissue puncture biopsy needle |
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| CN (1) | CN106691550A (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20170524 | |
| RJ01 | Rejection of invention patent application after publication |