CN201453304U - A needle biopsy sampling device - Google Patents

Abstract

Translated fromChinese

本实用新型公开了一种穿刺活检取样设备，包括壳体、穿刺针座、穿刺针、针管座和针管，穿刺针和针管伸出壳体外，穿刺针座和针管座在壳体内可沿穿刺针的伸出方向前后移动；壳体内还设有在针管座向后移动到位时对其进行扣接限位的限位扣、在穿刺针座向后移动到位时对其进行扣接限位的扳机扣、赋予针管座向前移动趋势的针管座弹簧、赋予穿刺针座向前移动趋势的针座弹簧、可拉动穿刺针座和针管座向后移动的推拉杆，壳体上铰接有上膛盖，上膛盖与推拉杆活动连接，扳机扣上设有发射扳机，壳体上设置有与针管座固接的取样滑块。本技术方案具有上膛轻便、发射强劲、取样充足、使用安全可靠、结构简单、制造安装方便等优点。

The utility model discloses a puncture biopsy sampling device, which comprises a casing, a puncture needle seat, a puncture needle, a needle tube seat and a needle tube. The extension direction moves back and forth; the housing is also equipped with a limit buckle for buckling and limiting when the needle tube base moves backwards, and a trigger for buckling and limiting when the puncture needle base moves backwards. buckle, needle tube seat spring endowing the needle tube seat with a tendency to move forward, the needle seat spring endowing the puncture needle seat with a tendency to move forward, a push-pull rod that can pull the puncture needle seat and the needle tube seat to move backward, and the housing is hinged with a loading cover, The upper chamber cover is movably connected with the push-pull rod, the firing trigger is arranged on the trigger buckle, and the sampling slider fixedly connected with the needle tube seat is arranged on the casing. The technical solution has the advantages of light loading, strong launch, sufficient sampling, safe and reliable use, simple structure, convenient manufacture and installation, and the like.

Description

Translated fromChinese

一种穿刺活检取样设备A needle biopsy sampling device

技术领域technical field

本实用新型涉及一种用于病理检查的活检取样设备，特别是涉及一种一次性使用全自动经皮穿刺活检取样设备。The utility model relates to a biopsy sampling device for pathological examination, in particular to a disposable full-automatic percutaneous puncture biopsy sampling device.

背景技术Background technique

活检法病理诊断是肿瘤诊断各种方法中最可靠、最有效的，常常也是最终的诊断方法。目前用于病理检查的活检取样设备为枪式结构，有全自动、半自动和手动各种类型。全自动活检取枪具有上膛、发射、取样三个功能，这种活检枪又分为重复性使用和一次性使用两个大类，重复性使用活检枪结构复杂，上膛力大，壳体部分多为金属材料，质量重，价格昂贵。其上膛是靠滑动或扳动上膛拴压缩弹簧使穿刺针组件和针管组件受限位，上膛拴一次性压缩穿刺针组件弹簧和针管组件弹簧，压缩力较大。一次性使用活检枪上膛结构借用了杠杆的原理，加长动力臂，减小阻力臂，上膛省力；壳体部分多为塑料材料，受到塑料件强度方面限制，弹簧长度较短，压缩力小，则发射不够强劲；取样结构靠旋转和拉动针管组件，操作不稳定，取样效率低。Biopsy pathological diagnosis is the most reliable, most effective, and often the final diagnostic method among various methods of tumor diagnosis. The biopsy sampling equipment currently used for pathological examination is a gun-type structure, and there are various types of full-automatic, semi-automatic and manual. Fully automatic biopsy gun has three functions of loading, firing and sampling. This kind of biopsy gun is divided into two categories: reusable and one-time use. The reusable biopsy gun has complex structure, large loading force, and many shell parts. It is a metal material, heavy in quality and expensive in price. Its loading is to make the puncture needle assembly and the needle tube assembly be limited by sliding or pulling the compression spring of the upper chamber, and the upper chamber is used to compress the spring of the puncture needle assembly and the spring of the needle tube assembly at one time, and the compression force is relatively large. The loading structure of the disposable biopsy gun borrows the principle of the lever, lengthens the power arm, reduces the resistance arm, and saves loading effort; the shell part is mostly made of plastic material, limited by the strength of the plastic parts, the spring length is short, and the compression force is small. The emission is not strong enough; the sampling structure relies on rotating and pulling the needle tube assembly, the operation is unstable, and the sampling efficiency is low.

发明内容Contents of the invention

为了解决上述的技术问题，本实用新型的目的是提供一种穿刺活检取样设备，可以实现上膛轻便，发射强劲，取样充足之临床需要。In order to solve the above technical problems, the purpose of this utility model is to provide a puncture biopsy sampling device, which can realize the clinical needs of light loading, powerful firing and sufficient sampling.

为了达到上述的目的，本实用新型采用了以下的技术方案：In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

一种穿刺活检取样设备，包括壳体，所述壳体内设有穿刺针座，穿刺针座前端固接有穿刺针，穿刺针上套设有针管座和针管，针管固接在针管座的前端，穿刺针和针管伸出壳体外，所述穿刺针座和针管座在壳体内可沿穿刺针的伸出方向前后移动；所述壳体内还设有在针管座向后移动到位时对其进行扣接限位的限位扣、在穿刺针座向后移动到位时对其进行扣接限位的扳机扣、赋予针管座向前移动趋势的针管座弹簧、赋予穿刺针座向前移动趋势的针座弹簧、可拉动穿刺针座和针管座向后移动的推拉杆，所述壳体上铰接有上膛盖，上膛盖与推拉杆活动连接，所述扳机扣上设有伸出壳体外的发射扳机，所述壳体上设置有可前后滑动的取样滑块，取样滑块与壳体内的针管座固接。A puncture biopsy sampling device, comprising a housing, the housing is provided with a puncture needle seat, a puncture needle is fixedly connected to the front end of the puncture needle seat, a needle tube seat and a needle tube are sheathed on the puncture needle, and the needle tube is fixedly connected to the front end of the needle tube seat , the puncture needle and the needle tube extend out of the housing, and the puncture needle base and the needle tube base can move back and forth along the extending direction of the puncture needle in the housing; The limit buckle for buckling and limiting, the trigger buckle for buckling and limiting when the puncture needle seat moves backward, the needle tube seat spring that gives the needle tube seat a tendency to move forward, the spring that gives the puncture needle seat a tendency to move forward The needle seat spring, the push-pull rod that can pull the puncture needle seat and the needle tube seat to move backwards, the casing is hinged with an upper chamber cover, and the upper chamber cover is movably connected with the push-pull rod, and the trigger buckle is provided with a launcher extending out of the casing trigger, the housing is provided with a sampling slider that can slide back and forth, and the sampling slider is fixedly connected with the needle tube seat in the housing.

上述限位扣和扳机扣与壳体转动连接，所述针管座弹簧前端与针管座相抵，所述针管座弹簧后端与限位扣相抵以赋予限位扣向后转动进行扣接限位的趋势，所述针座弹簧前端与穿刺针座相抵，所述针座弹簧后端与扳机扣相抵以赋予扳机扣向后转动进行扣接限位的趋势，所述穿刺针座向前移动到位时前端可与限位扣相抵以使限位扣向前转动进而脱离扣接限位。The above-mentioned limit buckle and the trigger buckle are rotatably connected with the housing, the front end of the needle base spring is against the needle base, and the rear end of the needle base spring is against the limit buckle so as to endow the limit buckle to rotate backward to fasten and limit the position. Tendency, the front end of the needle seat spring is against the puncture needle seat, and the rear end of the needle seat spring is against the trigger buckle to endow the trigger buckle with a tendency to rotate backwards to buckle and limit the position. When the puncture needle seat moves forward The front end can be offset against the limit buckle so that the limit buckle can rotate forward so as to break away from the fastening limit.

作为优选，上述上膛盖铰接在所述壳体后端，所述推拉杆的后端两侧设有伸出壳体的凸轴，两个凸轴伸入上膛盖上的两个条形孔内。As a preference, the above-mentioned upper chamber cover is hinged at the rear end of the housing, and both sides of the rear end of the push-pull rod are provided with protruding shafts protruding from the housing, and the two protruding shafts extend into two strip-shaped holes on the upper chamber cover .

上述限位扣一体成形有长转动臂、短转动臂和转轴，其长转动臂前端设有可对针管座进行扣接限位的卡钩，其短转动臂的前面与针管座弹簧相抵，该短转动臂的后面可与穿刺针座相抵.The above-mentioned limit buckle is integrally formed with a long rotating arm, a short rotating arm and a rotating shaft. The front end of the long rotating arm is provided with a hook that can fasten and limit the needle tube holder. The front of the short rotating arm is offset against the spring of the needle tube holder. The back of the short rotating arm can be offset against the puncture needle seat.

作为优选，上述限位扣长转动臂与短转动臂的后面的夹角为钝角，或者所述限位扣的短转动臂的后面设置凸起或者穿刺针座的前端设有凸起。Preferably, the angle between the long rotating arm and the back of the short rotating arm of the limit buckle is an obtuse angle, or the rear of the short rotating arm of the limit buckle is provided with a protrusion or the front end of the puncture needle holder is provided with a protrusion.

上述扳机扣一体成形有长转动臂、短转动臂和转轴，其长转动臂前端设有可对穿刺针座进行扣接限位的卡钩，其短转动臂的前面与针座弹簧相抵。The above-mentioned trigger buckle is integrally formed with a long rotating arm, a short rotating arm and a rotating shaft. The front end of the long rotating arm is provided with a hook that can fasten and limit the puncture needle holder, and the front of the short rotating arm is offset against the needle holder spring.

作为优选，上述壳体内设有可以前后移动的安全钮座，安全钮座向后移动到位时可以限制扳机扣向前转动，在安全钮座上设有伸出壳体外的安全钮。Preferably, the housing is provided with a safety button seat that can move back and forth. When the safety button seat moves backward to a certain position, it can limit the forward rotation of the trigger buckle. The safety button seat is provided with a safety button that extends out of the housing.

作为优选，上述安全钮座上设有凸台或者凹槽与设在所述推拉杆上的凸台或者凹槽相配合限位。Preferably, the above-mentioned safety button seat is provided with a boss or a groove to cooperate with the boss or the groove provided on the push-pull rod to limit the position.

作为优选，上述上膛盖或者壳体上设有防滑筋。Preferably, anti-slip ribs are provided on the upper chamber cover or the casing.

本实用新型由于采用了以上的技术方案，具有上膛轻便、发射强劲、取样充足、使用安全可靠、结构简单、制造安装方便等优点。Due to the adoption of the above technical scheme, the utility model has the advantages of light loading, strong firing, sufficient sampling, safe and reliable use, simple structure, convenient manufacture and installation, and the like.

附图说明Description of drawings

图1是本实用新型的爆炸图。Fig. 1 is an exploded view of the utility model.

图2是本实用新型的结构示意图(发射后)。Fig. 2 is a schematic diagram of the structure of the utility model (after launch).

图3是限位扣的结构示意图。Fig. 3 is a structural schematic diagram of the limit button.

图4是扳机扣的结构示意图。Fig. 4 is a structural schematic diagram of the trigger button.

图5是穿刺针的结构示意图。Fig. 5 is a schematic structural view of the puncture needle.

图6是本实用新型的使用示意图(发射)。Fig. 6 is a schematic view (emission) of the utility model.

图7是本实用新型的使用示意图(上膛)。Fig. 7 is a schematic view of the utility model (loading).

图8是本实用新型的使用示意图(取样)。Fig. 8 is a schematic view of the utility model (sampling).

具体实施方式Detailed ways

下面结合附图对本实用新型的具体实施方式做一个详细的说明。Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.

实施例1：Example 1:

如图1、图2所示的一种穿刺活检取样设备，包括由上壳体4和下壳体14构成的壳体，壳体内设有穿刺针座8，穿刺针座8前端固接有穿刺针1，穿刺针1上套设有针管座7和针管2，针管2固接在针管座7的前端，穿刺针1和针管2伸出壳体外，所述穿刺针座8和针管座7在壳体内可沿穿刺针1的伸出方向前后移动；所述壳体内还设有在针管座7向后移动到位时对其进行扣接限位的限位扣12、在穿刺针座8向后移动到位时对其进行扣接限位的扳机扣13、赋予针管座7向前移动趋势的针管座弹簧9、赋予穿刺针座8向前移动趋势的针座弹簧10、仅可拉动穿刺针座8和针管座7向后移动的推拉杆6，所述限位扣12和扳机扣13与壳体转动连接，所述针管座弹簧9前端与针管座7相抵，所述针管座弹簧9后端与限位扣12相抵以赋予限位扣12向后(顺时针方向)转动进行扣接限位的趋势，所述针座弹簧10前端与穿刺针座8相抵，所述针座弹簧10后端与扳机扣13相抵以赋予扳机扣13顺时针向后转动进行扣接限位的趋势，所述穿刺针座8向前移动到位时前端可与限位扣12相抵以赋予限位扣12向前(逆时针方向)转动进而脱离扣接限位的趋势，所述扳机扣13上设有从壳体上扳机孔142伸出的发射扳机131；所述壳体后端铰接有上膛盖4，所述推拉杆6两侧设有伸出壳体上条形孔143的凸轴62，两个凸轴62伸入上膛盖4上的两个条形孔42内；所述壳体前端设置有可沿滑槽孔51前后滑动的取样滑块3，取样滑块3伸入壳体内与针管座7固接，与之相应的在上膛盖4上设有开窗41以露出所述取样滑块3.A puncture biopsy sampling device as shown in Fig. 1 and Fig. 2 includes a casing composed of anupper casing 4 and alower casing 14, apuncture needle holder 8 is arranged inside the casing, and apuncture needle holder 8 is fixedly connected to the front end of thepuncture needle holder 8.Needle 1, thepuncture needle 1 is covered with aneedle tube base 7 and aneedle tube 2, theneedle tube 2 is fixedly connected to the front end of theneedle tube base 7, thepuncture needle 1 and theneedle tube 2 extend out of the housing, thepuncture needle base 8 and theneedle tube base 7 are in the The housing can move back and forth along the extension direction of thepuncture needle 1; the housing is also provided with astopper 12 that buckles and limits theneedle tube base 7 when it moves backwards into place. When it is moved in place, thetrigger button 13 that buckles and limits it, the needletube seat spring 9 that gives the needle tube seat 7 a tendency to move forward, theneedle seat spring 10 that gives the puncture needle seat 8 a tendency to move forward, and the puncture needle seat that can only be pulled 8 and the push-pull rod 6 for theneedle tube seat 7 to move backward, thelimit button 12 and thetrigger button 13 are rotatably connected with the housing, the front end of the needletube seat spring 9 is offset against theneedle tube seat 7, and the rear end of the needletube seat spring 9 The front end of theneedle hub spring 10 is offset against thepuncture needle hub 8, and the rear end of theneedle hub spring 10 To offset against thetrigger buckle 13 to give the trigger buckle 13 a tendency to rotate clockwise backwards for fastening and limiting. (Counterclockwise) rotation and then break away from the trend of buckling limit, thetrigger button 13 is provided with afiring trigger 131 protruding from thetrigger hole 142 on the housing; the rear end of the housing is hinged with theupper chamber cover 4, so Both sides of the push-pull rod 6 are provided with protrudingshafts 62 protruding from thestrip holes 143 on the housing, and the two protrudingshafts 62 extend into the twostrip holes 42 on theupper chamber cover 4; The sampling slider 3 slides back and forth along thechute hole 51, the sampling slider 3 extends into the housing and is fixedly connected with theneedle base 7, and correspondingly, awindow 41 is provided on theupper chamber cover 4 to expose the sampling slider 3 .

本实施例中，所述壳体内设有分别供穿刺针座8和针管座7前后移动的前后两个滑槽；如图3所示，所述限位扣12一体成形有长转动臂122、短转动臂124和转轴123，长转动臂122前端设有可对针管座7进行扣接限位的卡钩121，短转动臂124的前面与针管座弹簧9相抵，短转动臂124的后面可与穿刺针座8相抵，并且，为了保证穿刺针座8对短转动臂124的撞击力，可以将短转动臂124的后面与长转动臂122的夹角设计成钝角，或者在短转动臂124的后面设置凸起，或者在穿刺针座8前端设置凸起；如图4所示，所述扳机扣13一体成形有长转动臂133、短转动臂135和转轴134，长转动臂133前端设有可对穿刺针座8进行扣接限位的卡钩132，短转动臂135的前面与针座弹簧10相抵；如图5所示，所述穿刺针1的头部呈三角斜面结构，以便于穿刺；穿刺针1头部设有取样槽101，取样槽101根据需要可分成平面型、三角型和U型，针管2外部刻有刻度，可以观察刺入人体的深度，针管2头部通过超声增强处理，在超声透射下显像清晰；所述上膛盖4通过膨胀栓11与下壳体14铰接；所述壳体内设有可以前后移动的安全钮座15，安全钮座15后端设有凸起152，这样安全钮座15向后移动到位时可以限制扳机扣13向前转动，此外，在安全钮座15上设有凸台和设在推拉杆6上的凸台61配合，这样在推拉杆6可以带动安全钮座15一起向后移动而不可以带动安全钮座15一起向前移动，在安全钮座15上设有伸出壳体外的安全钮151，安全钮151穿过设在下壳体14侧面的腰形孔141；上膛盖4两侧面、上端面和下壳体14两侧面都设有防滑筋，这样手持壳体和扳动上膛盖4时起防滑作用。In this embodiment, the housing is provided with two front and rear chute respectively for thepuncture needle base 8 and theneedle tube base 7 to move back and forth; as shown in FIG. Short rotatingarm 124 androtating shaft 123, the front end of long rotatingarm 122 is provided with thecatch 121 that can buckle and limitneedle tube seat 7, the front of short rotatingarm 124 is offset with needletube seat spring 9, the back of short rotatingarm 124 can Against thepuncture needle base 8, and, in order to ensure the impact force of thepuncture needle base 8 on the short rotatingarm 124, the angle between the back of the short rotatingarm 124 and the long rotatingarm 122 can be designed as an obtuse angle, or the short rotatingarm 124 Protrusions are set at the back of thepuncture needle holder 8, or protrusions are set at the front end of thepuncture needle holder 8; There is ahook 132 that can fasten and limit thepuncture needle holder 8, and the front of the short rotatingarm 135 is against theneedle holder spring 10; For puncture; the head of thepuncture needle 1 is equipped with asampling groove 101, which can be divided into flat, triangular and U-shaped according to the needs. Ultrasonic enhancement treatment makes the image clear under ultrasonic transmission; theupper chamber cover 4 is hinged with thelower casing 14 through theexpansion bolt 11; There is aprotrusion 152, so that thesafety button seat 15 can limit the forward rotation of thetrigger catch 13 when it moves backwards. In addition, thesafety button seat 15 is provided with a boss to cooperate with theboss 61 on the push-pull rod 6, so that The push-pull rod 6 can drive thesafety button seat 15 to move backward together but not to drive thesafety button seat 15 to move forward together. Waist-shaped hole 141 inlower housing 14 side; Upper chamber cover 4 both sides, upper end surface andlower housing 14 both sides are all provided with anti-slip ribs, play anti-slip effect when holding housing and pullingupper chamber cover 4 like this.

如图7所示，上膛时，手持枪式壳体，向上拉起上膛盖4，上膛盖4通过条形孔42和凸轴62向后拉动推拉杆6，推拉杆6拉动穿刺针座8和针管座7向后移动，限位扣12和扳机扣13在弹簧力的作用下向后转动，当穿刺针座8和针管座7向后移动到位时，限位扣12上的卡钩121与针管座7的前端面进行扣接限位，扳机扣13上的卡钩132与穿刺针座8的前端面进行扣接限位，同时，推拉杆6带动安全钮座15一起向后移动到位，安全钮座15上的凸起152限制扳机扣13向前转动；向下合拢上膛盖4，上膛盖4通过条形孔42和凸轴62向前拉动推拉杆6，推拉杆6向前回位，但是，穿刺针座8和针管座7因为受到限位没有向前移动，穿刺针1和针管2均为上膛待发射状态。As shown in Figure 7, when charging, hold the gun-type housing, pull up theupper chamber cover 4, theupper chamber cover 4 pulls the push-pull rod 6 backward through the strip-shaped hole 42 and the protrudingshaft 62, and the push-pull rod 6 pulls thepuncture needle holder 8 and theneedle tube base 7 move backwards, thelimit buckle 12 and thetrigger buckle 13 rotate backwards under the action of the spring force, when thepuncture needle base 8 and theneedle tube base 7 move backward to the position, thecatch 121 on thelimit buckle 12 Thehook 132 on thetrigger buckle 13 and the front end surface of thepuncture needle holder 8 are engaged to limit the position, and at the same time, the push-pull rod 6 drives thesafety button seat 15 to move backward together to the position , theprotrusion 152 on thesafety button seat 15 limits the forward rotation of thetrigger button 13; theupper chamber cover 4 is closed downward, and theupper chamber cover 4 pulls the push-pull rod 6 forward through thestrip hole 42 and the protrudingshaft 62, and the push-pull rod 6 returns forward , However, thepuncture needle seat 8 and theneedle tube seat 7 do not move forward because of being limited, and thepuncture needle 1 and theneedle tube 2 are both loaded and ready to fire.

如图6所示，发射时，先向前移动安全钮151，安全钮座15向前移动不再限制扳机扣13向前转动；向后扳动发射扳机131使扳机扣13向前转动，扳机扣13上的卡钩132与穿刺针座8的前端面的扣接限位释放，穿刺针座8在针座弹簧10的作用下向前移动，穿刺针1发射露出取样槽101，即穿刺针1插入病变部位并且活组织嵌入取样槽101内；当穿刺针座8向前移动到位时，其前端撞击限位扣12并使其向前转动，限位扣12上的卡钩121与针管座7的前端面的扣接限位释放，针管座7在针管座弹簧9的作用下向前移动，针管2发射覆盖取样槽101，即针管2将嵌入取样槽101的活组织从病变部位上切割分离出来，从而完成穿刺动作，将穿刺针1和针管2连同壳体取离病体。需要说明的是，上述针座弹簧10和针管座弹簧9在上膛时处于受压迫状态，因弹簧弹力较大，因而发射强劲，在发射后处于自由状态。As shown in Figure 6, when launching, first move thesafety button 151 forward, and thesafety button seat 15 moves forward and no longer restricts the forward rotation of thetrigger button 13; Theclasp 132 on thebuckle 13 and the front end of thepuncture needle base 8 are released in a limited position, and thepuncture needle base 8 moves forward under the action of theneedle base spring 10, and thepuncture needle 1 is fired to expose thesampling groove 101, that is, thepuncture needle 1 Insert the lesion and insert the living tissue into thesampling groove 101; when thepuncture needle holder 8 moves forward to the position, its front end hits thelimit buckle 12 and makes it rotate forward, thehook 121 on thelimit buckle 12 and theneedle tube holder 7 is released, theneedle tube seat 7 moves forward under the action of the needletube seat spring 9, and theneedle tube 2 shoots to cover thesampling groove 101, that is, theneedle tube 2 cuts the living tissue embedded in thesampling groove 101 from the lesion Separated to complete the puncture action, thepuncture needle 1 and theneedle tube 2 together with the casing are taken away from the disease body. It should be noted that the above-mentionedneedle seat spring 10 and needletube seat spring 9 are in a compressed state when they are loaded, and they are in a free state after firing because the spring force is relatively large, so they are fired strongly.

如图8所示，取样时，人工向后移动取样滑块3，带动针管座7向后移动，针管2向后移动露出穿刺针1前端的取样槽101，取出取样槽101内活组织完成采样，松开取样滑块3，针管座7在弹簧力作用下自动回位.As shown in Figure 8, when sampling, the sampling slider 3 is manually moved backward, which drives theneedle tube holder 7 to move backward, theneedle tube 2 moves backward to expose thesampling groove 101 at the front end of thepuncture needle 1, and the living tissue in thesampling groove 101 is taken out to complete the sampling , loosen the sampling slider 3, and theneedle base 7 returns automatically under the force of the spring.

Claims (10)

1. aspiration biopsy sampling equipment, comprise housing, it is characterized in that, be provided with Paracentesis needle holder (8) in the described housing, Paracentesis needle holder (8) front end is connected with puncture needle (1), is arranged with needle tubing seat (7) and needle tubing (2) on the puncture needle (1), and needle tubing (2) is fixed in the front end of needle tubing seat (7), puncture needle (1) and needle tubing (2) stretch out outside the housing, and described Paracentesis needle holder (8) and needle tubing seat (7) can move forward and backward along the direction of stretching out of puncture needle (1) in housing; Also be provided with in the described housing when needle tubing seat (7) moves backward to it is carried out the spacing spacing button (12) of snapping, when Paracentesis needle holder (8) moves backward to, it is carried out the spacing trigger button (13) of snapping, give the needle tubing seat spring (9) that needle tubing seat (7) moves forward trend, give the needle stand spring (10) that Paracentesis needle holder (8) moves forward trend, can spur the push-pull bar (6) that Paracentesis needle holder (8) and needle tubing seat (7) move backward, be hinged with the lid (4) that loads on the described housing, the lid (4) that loads flexibly connects with push-pull bar (6), described trigger button (13) is provided with and stretches out the outer emission trigger (131) of housing, described housing be provided with can before and after the sampling slide block (3) that slides, sampling slide block (3) is affixed with the intravital needle tubing seat of shell (7).

2. a kind of aspiration biopsy sampling equipment according to claim 1, it is characterized in that, described spacing button (12) and trigger button (13) are rotationally connected with housing, described needle tubing seat spring (9) front end and needle tubing seat (7) offset, described needle tubing seat spring (9) rear end and spacing button the (12) offset and rotate backward and carry out the spacing trend of snapping to give spacing button the (12), described needle stand spring (10) front end and Paracentesis needle holder (8) offset, described needle stand spring (10) rear end and trigger are buckled (13) and are offseted and rotate backward and carry out the spacing trend of snapping to give trigger and buckle (13), and described Paracentesis needle holder (8) moves forward when putting in place that front end can offset with spacing button (12) so that spacing button (12) rotates forward and then it is spacing to break away from snapping.

3. a kind of aspiration biopsy sampling equipment according to claim 2, it is characterized in that, the described lid (4) that loads is hinged on described housing rear end, the both sides, rear end of described push-pull bar (6) are provided with the protruding axle (62) that stretches out housing, and two protruding axles (62) stretch in two bar holes (42) on the lid (4) that loads.

4. a kind of aspiration biopsy sampling equipment according to claim 3, it is characterized in that, described spacing button (12) is formed with long cursor (122), short cursor (124) and rotating shaft (123), its long cursor (122) front end is provided with and can carries out the spacing grab of snapping (121) to needle tubing seat (7), the front and the needle tubing seat spring (9) of its short cursor (124) offset, and the back of this weak point cursor (124) can offset with Paracentesis needle holder (8).

5. a kind of aspiration biopsy sampling equipment according to claim 4 is characterized in that, the long cursor of described spacing button (12) (122) is the obtuse angle with the angle of the back of short cursor (124).

6. a kind of aspiration biopsy sampling equipment according to claim 4 is characterized in that, the front end that the back of the short cursor (124) of described spacing button (12) is provided with projection or Paracentesis needle holder (8) is provided with projection.

7. according to claim 4 or 5 or 6 described a kind of aspiration biopsy sampling equipments, it is characterized in that, described trigger button (13) is formed with long cursor (133), short cursor (135) and rotating shaft (134), its long cursor (133) front end is provided with and can carries out the spacing grab of snapping (132) to Paracentesis needle holder (8), and the front and the needle stand spring (10) of its short cursor (135) offset.

8. a kind of aspiration biopsy sampling equipment according to claim 7, it is characterized in that, be provided with the safety knobs seat (15) that can move forward and backward in the described housing, safety knobs seat (15) can rotate forward by limit trigger button (13) when moving backward to, was provided with the safety knobs (151) of stretching out outside the housing on safety knobs seat (15).

9. a kind of aspiration biopsy sampling equipment according to claim 8 is characterized in that, described safety knobs seat (15) is provided with boss or groove and matches spacing with boss (61) or groove on being located at described push-pull bar (6).

10. a kind of aspiration biopsy sampling equipment according to claim 9 is characterized in that, described lid (4) or the housing of loading is provided with anti-skidding muscle.

Images