技术领域technical field
本实用新型涉及医疗器械技术领域，特别是涉及一种超声刀杆。The utility model relates to the technical field of medical instruments, in particular to an ultrasonic cutter bar.
背景技术Background technique
超声手术刀是各种微创外科手术中必备的手术器械。现有的超声手术刀主要由超声换能器和超声刀杆组成。超声换能器将超声主机输送的电能量转换为超声能量和机械振动，通过超声刀杆将超声振动能量传递到其前端的刀头，刀头作用于人体骨组织或软组织，达到手术治疗疾病的目的。Ultrasonic scalpels are essential surgical instruments in various minimally invasive surgeries. Existing ultrasonic scalpel is mainly made up of ultrasonic transducer and ultrasonic cutter bar. The ultrasonic transducer converts the electric energy delivered by the ultrasonic host into ultrasonic energy and mechanical vibration, and transmits the ultrasonic vibration energy to the cutter head at the front end through the ultrasonic cutter bar, and the cutter head acts on human bone tissue or soft tissue to achieve surgical treatment of diseases. Purpose.
由于超声刀杆比较长，为了方便加工，超声刀杆通常由后侧的变幅杆和前侧的刀具组成，变幅杆与刀具的连接方式通常采用螺套连接，具体为：螺套的一端套在刀具的尾端上，另一端与变幅杆的输出端螺纹连接。由于安装时，螺套需从刀具的刀头穿过，因此，刀头的尺寸要比螺套内孔的尺寸小；而且，为了避免装配干涉，刀具尾端的螺套装入位置的外径必须比螺套的内孔小。因此，现有变幅杆与刀具的连接方式大大地限制了刀具的头端和尾端的设计尺寸。Because the ultrasonic cutter bar is relatively long, in order to facilitate processing, the ultrasonic tool bar is usually composed of a horn on the rear side and a tool on the front side. The connection between the horn and the tool is usually connected by a screw sleeve, specifically: one end of the screw sleeve It is set on the tail end of the tool, and the other end is screwed with the output end of the horn. Since the screw sleeve needs to pass through the cutter head of the tool during installation, the size of the cutter head should be smaller than the inner hole of the screw sleeve; moreover, in order to avoid assembly interference, the outer diameter of the screw sleeve at the end of the tool must be smaller than that of the inner hole of the screw sleeve. The inner hole of the screw sleeve is small. Therefore, the existing connection mode between the horn and the tool greatly limits the design dimensions of the head end and the tail end of the tool.
发明内容Contents of the invention
针对上述现有技术现状，本实用新型提供一种不会对刀具设计尺寸造成限制的超声刀杆。Aiming at the current state of the art above, the utility model provides an ultrasonic cutter bar that does not limit the design size of the cutter.
为了解决上述技术问题，本实用新型所提供的一种超声刀杆，包括：变幅杆，包括超声输出端；刀具，包括尾端；以及连接组件，用于连接所述变幅杆的超声输出端和所述刀具的尾端；所述连接组件包括垫片和连接套，所述垫片包覆在所述刀具的尾端上，所述连接套的一端套设在所述垫片上，且在所述连接套与所述垫片之间设置有限制所述连接套从所述垫片滑脱的防滑脱结构，所述连接套的另一端与所述超声输出端套接。In order to solve the above technical problems, the utility model provides an ultrasonic cutter bar, comprising: a horn, including an ultrasonic output end; a cutter, including a tail end; and a connecting assembly, used to connect the ultrasonic output of the horn end and the tail end of the cutter; the connecting assembly includes a gasket and a connecting sleeve, the gasket is covered on the tail end of the cutter, and one end of the connecting sleeve is sleeved on the gasket, Moreover, an anti-slip structure is provided between the connecting sleeve and the pad to limit the slipping of the connecting sleeve from the pad, and the other end of the connecting sleeve is socketed with the ultrasonic output end.
本实用新型所提供的超声刀杆，由于在连接套与刀具的尾端之间设置有垫片，这样连接套的内孔可设计得比较大，不会对刀具的头端的尺寸设计造成限制，而且可根据需要调节垫片的厚度，从而也不会对刀具的尾端的尺寸设计造成限制。因此，本实用新型的超声刀杆解决了连接套限制刀具设计尺寸的问题。同时，本实用新型的超声刀杆结构简单，加工方便，成本低。In the ultrasonic tool bar provided by the utility model, since a gasket is provided between the connecting sleeve and the tail end of the tool, the inner hole of the connecting sleeve can be designed relatively large, which will not limit the size design of the head end of the tool. Moreover, the thickness of the spacer can be adjusted as required, so that the size design of the tail end of the tool is not restricted. Therefore, the ultrasonic cutter bar of the utility model solves the problem that the connecting sleeve limits the design size of the cutter. At the same time, the ultrasonic cutter bar of the utility model has the advantages of simple structure, convenient processing and low cost.
在其中一个实施例中，所述连接套的所述另一端与所述超声输出端螺纹连接；通过旋紧所述连接套使所述变幅杆的超声输出端的端面与所述刀具的尾端的端面抵紧。In one of the embodiments, the other end of the connecting sleeve is threadedly connected to the ultrasonic output end; by tightening the connecting sleeve, the end face of the ultrasonic output end of the horn is connected to the tail end of the tool The end faces are tight.
在其中一个实施例中，所述防滑脱结构包括成型在所述连接套的内壁面上的第一台阶，以及成型在所述垫片的外周面上的与所述第一台阶相匹配的第二台阶。In one embodiment, the anti-slip structure includes a first step formed on the inner wall surface of the connecting sleeve, and a second step matched with the first step formed on the outer peripheral surface of the gasket. Two steps.
在其中一个实施例中，所述垫片与所述尾端之间设置有限制所述垫片朝所述变幅杆侧滑动的轴向限位结构。In one of the embodiments, an axial limiting structure is provided between the spacer and the tail end to limit the spacer from sliding toward the horn side.
在其中一个实施例中，所述轴向限位结构包括成型在所述垫片内壁面上的第三台阶，以及成型在所述尾端外周面上的与所述第三台阶相匹配的第四台阶。In one of the embodiments, the axial limiting structure includes a third step formed on the inner wall surface of the gasket, and a third step matched with the third step formed on the outer peripheral surface of the tail end. Four steps.
在其中一个实施例中，所述垫片采用刚性材料制成。In one of the embodiments, the gasket is made of rigid material.
在其中一个实施例中，所述垫片靠近所述尾端侧的一端套设在所述超声输出端上。In one of the embodiments, the end of the spacer near the tail end is sleeved on the ultrasonic output end.
在其中一个实施例中，包括至少两片所述垫片，所述垫片呈瓦状，所有所述垫片沿所述尾端的圆周方向排布。In one embodiment, at least two of the spacers are included, the spacers are tile-shaped, and all the spacers are arranged along the circumferential direction of the tail end.
在其中一个实施例中，包括两片所述垫片，两片所述垫片对称地设置在所述尾端的两侧。In one embodiment, there are two gaskets, and the two gaskets are arranged symmetrically on both sides of the tail end.
在其中一个实施例中，包括一片所述垫片，且所述垫片的横截面为“C”形。In one embodiment, a piece of the gasket is included, and the cross-section of the gasket is "C" shaped.
本实用新型附加技术特征所具有的有益效果将在本说明书具体实施方式部分进行说明。The beneficial effects of the additional technical features of the utility model will be described in the specific implementation mode of this specification.
附图说明Description of drawings
图1为本实用新型实施例中的超声刀杆的局部剖视图；Fig. 1 is a partial cross-sectional view of an ultrasonic cutter bar in an embodiment of the present invention;
图2为图1中I处的局部放大示意图；Fig. 2 is the partially enlarged schematic diagram of I place in Fig. 1;
图3为本实用新型实施例中的垫片的立体结构示意图。Fig. 3 is a schematic diagram of the three-dimensional structure of the gasket in the embodiment of the present invention.
附图标记说明：10、变幅杆10；12、输入端12；14、超声输出端14；20、刀具20；22、尾端22；222、第四台阶222；24、头端24；30、连接组件30；32、垫片32；322、第二台阶322；324、第三台阶324；34、连接套34；342、第一台阶342。Description of reference signs: 10, horn 10; 12, input end 12; 14, ultrasonic output end 14; 20, cutter 20; 22, tail end 22; 222, fourth step 222; 24, head end 24; 30 , the connection assembly 30; 32, the gasket 32; 322, the second step 322; 324, the third step 324; 34, the connecting sleeve 34;
具体实施方式Detailed ways
下面参考附图并结合实施例对本实用新型进行详细说明。需要说明的是，在不冲突的情况下，以下各实施例及实施例中的特征可以相互组合。The utility model is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
如图1、2所示，本实用新型其中一个实施例中的超声刀杆包括变幅杆10、刀具20以及连接组件30，其中，变幅杆10包括超声输入端12和超声输出端14，变幅杆10的超声输入端12与超声换能器(图中未示出)的输出端连接。变幅杆10的超声输出端14设置有外螺纹。刀具20包括靠近变幅杆10的尾端22和远离变幅杆10的头端24，变幅杆10的头端24设置有刀头，刀头可以是切削刀头、刨削刀头等等。连接组件30用于连接所述变幅杆10的超声输出端14和所述刀具20的尾端22。超声换能器将超声主机输送的电能量转换为超声能量和机械振动，通过变幅杆10、刀具20将超声振动能量传递到其前端的刀头，刀头作用于人体骨组织或软组织，达到手术治疗疾病的目的。As shown in Figures 1 and 2, the ultrasonic cutter bar in one embodiment of the present invention includes a horn 10, a cutter 20 and a connecting assembly 30, wherein the horn 10 includes an ultrasonic input end 12 and an ultrasonic output end 14, The ultrasonic input end 12 of the horn 10 is connected with the output end of an ultrasonic transducer (not shown in the figure). The ultrasonic output end 14 of the horn 10 is provided with an external thread. The cutter 20 includes a tail end 22 close to the horn 10 and a head end 24 far away from the horn 10 . The head end 24 of the horn 10 is provided with a cutter head, which may be a cutting head, a planer head and the like. The connecting assembly 30 is used for connecting the ultrasonic output end 14 of the horn 10 and the tail end 22 of the cutter 20 . The ultrasonic transducer converts the electric energy delivered by the ultrasonic host into ultrasonic energy and mechanical vibration, and transmits the ultrasonic vibration energy to the cutter head at the front end through the horn 10 and the cutter 20, and the cutter head acts on the bone tissue or soft tissue of the human body to achieve The purpose of surgery to treat disease.
如图2、3所示，所述连接组件30包括垫片32和连接套34，所述垫片32包覆在所述刀具20的尾端22上，所述连接套34的一端套设在所述垫片32上，且在所述连接套34与所述垫片32之间设置有限制所述连接套34从所述垫片32滑脱的防滑脱结构，所述连接套34的另一端与所述超声输出端14套接。As shown in Figures 2 and 3, the connecting assembly 30 includes a gasket 32 and a connecting sleeve 34, the gasket 32 is covered on the tail end 22 of the tool 20, and one end of the connecting sleeve 34 is sleeved on the On the gasket 32, an anti-slip structure is provided between the connecting sleeve 34 and the gasket 32 to limit the sliding of the connecting sleeve 34 from the gasket 32. The other end of the connecting sleeve 34 It is socketed with the ultrasonic output terminal 14 .
具体地，在将变幅杆的超声输出端与刀具进行连接时，首先将垫片包覆在刀具的尾端上，然后将连接套从刀具的头端部穿入，使其沿垫片的轴向滑动，以使连接套的一端套设在垫片上，而连接套的另一端套设在超声输出端上，从而使超声输出端与刀具连接。本实用新型的连接组件30，由于在连接套34与刀具20的尾端22之间设置有垫片32，这样连接套34的内孔可设计得比较大，不会对刀具20的头端24和尾端22的尺寸设计造成限制，从而解决了连接套34限制刀具20设计尺寸的问题。同时，本实用新型的连接组件30结构简单，加工方便，成本低。Specifically, when connecting the ultrasonic output end of the horn with the tool, the gasket is firstly coated on the tail end of the tool, and then the connecting sleeve is inserted from the head end of the tool so that it is along the edge of the gasket. Slide axially so that one end of the connecting sleeve is sleeved on the gasket, and the other end of the connecting sleeve is sleeved on the ultrasonic output end, so that the ultrasonic output end is connected with the tool. The connecting assembly 30 of the present utility model, owing to be provided with gasket 32 between the tail end 22 of connecting sleeve 34 and cutter 20, the inner hole of connecting sleeve 34 can be designed bigger like this, can not be opposite to the head end 24 of cutter 20 and the size design of the tail end 22 cause restrictions, thereby solving the problem that the connecting sleeve 34 limits the design size of the tool 20 . At the same time, the connection assembly 30 of the utility model has the advantages of simple structure, convenient processing and low cost.
在一个实施例中，所述连接套34的另一端与所述超声输出端14螺纹连接，通过旋紧所述连接套34使所述变幅杆10的超声输出端14的端面与所述刀具20的尾端22的端面抵紧。作为替代方案，连接套34的另一端与所述超声输出端14通过卡扣结构连接。In one embodiment, the other end of the connecting sleeve 34 is threadedly connected to the ultrasonic output end 14, and the end face of the ultrasonic output end 14 of the horn 10 is connected to the tool by tightening the connecting sleeve 34. The end face of the tail end 22 of 20 butts against. As an alternative, the other end of the connecting sleeve 34 is connected to the ultrasonic output end 14 through a buckle structure.
在一个实施例中，包括至少两片垫片32，所述垫片32呈瓦状，所有所述垫片32沿所述尾端22的圆周方向排布。装配垫片32时，避免了垫片从刀具20的头端24穿入，这样即使刀具的尾端尺寸设计过大，也不会影响刀具与变幅杆之间的装配连接。为了方便加工和装配，包括两片所述垫片32，两片所述垫片32对称地设置在所述尾端22的两侧。In one embodiment, at least two gaskets 32 are included, and the gaskets 32 are tile-shaped, and all the gaskets 32 are arranged along the circumferential direction of the tail end 22 . When the spacer 32 is assembled, it is avoided that the spacer penetrates from the head end 24 of the tool 20, so that even if the size of the tail end of the tool is too large, it will not affect the assembly connection between the tool and the horn. In order to facilitate processing and assembly, two pieces of the gasket 32 are included, and the two pieces of the gasket 32 are arranged symmetrically on both sides of the tail end 22 .
在一个实施例中，所述防滑脱结构包括成型在所述连接套34的内壁面上的第一台阶342，以及成型在所述垫片32的外周面上的与所述第一台阶342相匹配的第二台阶322。通过第一台阶342和第二台阶322防止连接套34从垫片32上滑脱。In one embodiment, the anti-slip structure includes a first step 342 formed on the inner wall surface of the connecting sleeve 34 , and a first step 342 formed on the outer peripheral surface of the gasket 32 . Matching second step 322 . The first step 342 and the second step 322 prevent the connecting sleeve 34 from slipping off the washer 32 .
在一个实施例中，所述垫片32与所述尾端22之间设置有限制所述垫片32朝所述变幅杆10侧滑动的轴向限位结构。优选地，所述轴向限位结构包括成型在所述垫片32内壁面上的第三台阶324，以及成型在所述尾端22外周面上的与所述第三台阶324相匹配的第四台阶222。当垫片32包覆在所述刀具20的尾端22上时，第三台阶324与第四台阶222配合，限制垫片32朝所述变幅杆10侧滑动。In one embodiment, an axial limiting structure is provided between the washer 32 and the tail end 22 to restrict the washer 32 from sliding toward the horn 10 side. Preferably, the axial limiting structure includes a third step 324 formed on the inner wall surface of the washer 32 , and a third step 324 formed on the outer peripheral surface of the tail end 22 to match the third step 324 . Four steps 222. When the washer 32 wraps on the tail end 22 of the cutter 20 , the third step 324 cooperates with the fourth step 222 to restrict the washer 32 from sliding toward the horn 10 .
为了超声的传播效果，所述垫片32采用刚性材料制成。这是由于刚性材料能够降低超声波的衰减率。进一步地，所述垫片32采用金属材料制成。For the propagation effect of ultrasound, the gasket 32 is made of rigid material. This is due to the fact that rigid materials can reduce the attenuation rate of ultrasonic waves. Further, the gasket 32 is made of metal material.
为了增大接触面积，增大摩擦力，所述垫片32靠近所述尾端22侧的一端套设在所述超声输出端14上。In order to increase the contact area and increase the frictional force, the end of the washer 32 near the tail end 22 is sleeved on the ultrasonic output end 14 .
在另一个实施例中，包括一片所述垫片32，且所述垫片32的横截面为“C”形。装配时，打开垫片32，从而使垫片32可以从刀具20的头端24穿入。也就是说，将垫片32设计为半封闭结构能够使垫片在从刀具的头端穿入时，能够对刀具的头端形成避让，从而使刀具的头端和尾端的尺寸设计不受限制，并且使刀具和变幅杆之间的装配更简单、加工更方便。In another embodiment, one piece of the spacer 32 is included, and the spacer 32 is "C" shaped in cross-section. During assembly, the shim 32 is opened so that the shim 32 can be threaded from the head end 24 of the cutter 20 . That is to say, designing the spacer 32 as a semi-closed structure can make the spacer avoid the head end of the tool when it penetrates from the head end of the tool, so that the size design of the head end and tail end of the tool is not limited. , and make the assembly between the cutter and the horn simpler and the processing more convenient.
综上所述，本实用新型所提供的超声刀杆，由于在连接套与刀具的尾端之间设置有垫片，这样连接套的内孔可设计得比较大，不会对刀具的头端的尺寸设计造成限制，而且可根据需要调节垫片的厚度，从而也不会对刀具的尾端的尺寸设计造成限制，从而解决了连接套限制刀具设计尺寸的问题。同时，本实用新型的连接组件结构简单，加工方便，成本低。To sum up, in the ultrasonic cutter bar provided by the utility model, since a gasket is provided between the connecting sleeve and the tail end of the cutter, the inner hole of the connecting sleeve can be designed relatively large, which will not affect the head end of the cutter. The size design causes restrictions, and the thickness of the spacer can be adjusted according to needs, so that there is no restriction on the size design of the tail end of the cutter, thereby solving the problem that the connecting sleeve restricts the design size of the cutter. At the same time, the connection assembly of the utility model has the advantages of simple structure, convenient processing and low cost.
以上所述实施例仅表达了本实用新型的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。The above-mentioned embodiments only express several implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821230476.4UCN209392041U (en) | 2018-08-01 | 2018-08-01 | Ultrasonic Arbor |
| Application Number | Priority Date | Filing Date | Title |
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| CN201821230476.4UCN209392041U (en) | 2018-08-01 | 2018-08-01 | Ultrasonic Arbor |
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| CN209392041Utrue CN209392041U (en) | 2019-09-17 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201821230476.4UActiveCN209392041U (en) | 2018-08-01 | 2018-08-01 | Ultrasonic Arbor |
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| CN (1) | CN209392041U (en) |
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