技术领域technical field
本发明涉及一种医疗器械，特别是一种具有防抖功能的医用电动锯钻。The invention relates to a medical device, in particular to a medical electric saw drill with an anti-shake function.
背景技术Background technique
在外科的骨手术中，手术钻是一种较为常见的手术工具，经常要使用手术钻对骨组织进行操作，如钻孔和打克氏针。传统的骨手术工具一般都是专用手机配置专用器械头的单机型式，大大增加了医院的设备购买费用。In surgical bone surgery, the surgical drill is a relatively common surgical tool, and the surgical drill is often used to operate the bone tissue, such as drilling and punching a Kirschner wire. Traditional bone surgery tools are generally stand-alone models with dedicated mobile phones and dedicated instrument heads, which greatly increases the hospital's equipment purchase costs.
后续医用骨科电钻有所改进，包括：把手，把手的内部设置电池，把手上设置有调速开关，把手的上端设置有机壳，机壳内设置有普通的直流电机，在机壳的前端设置有万能接头。使用时，万能接头可以与开颅钻头、空心钻夹头、摆锯夹头、钻夹头、往复锯夹头等相连接。但是，上述结构的医用电钻不能与克氏针夹头相连接，功能不全，同时，上述结构的医用骨科电钻的电机为普通的直流电机，功率较小，产生的扭矩也小，对电机没有保护措施，电钻的使用时间较短。Subsequent medical orthopedic electric drills have been improved, including: a handle, a battery is installed inside the handle, a speed control switch is arranged on the handle, an organic casing is arranged on the upper end of the handle, an ordinary DC motor is arranged in the casing, and a There is a universal connector. During use, the universal joint can be connected with a craniotomy drill bit, a hollow drill chuck, an oscillating saw chuck, a drill chuck, a reciprocating saw chuck, and the like. However, the medical electric drill with the above structure cannot be connected with the Kirschner wire chuck, and its function is incomplete. At the same time, the motor of the medical orthopedic electric drill with the above structure is a common DC motor with small power and small torque, and there is no protection for the motor. Measures, the use time of the electric drill is shorter.
2013年7月10日公开的发明号为201220430832.3的中国实用新型专利发明，其发明名称为“一种医用钻”，其包括括带有连接套的主体，主体内设有一中空的圆柱状驱动装置，驱动装置的动力输出轴与连接套相连接，连接套可以实现与不同器械头之间的快速接合，并在动力输出轴的带动下进行工作。此外，产品的中空驱动装置设计，还可以将不同长度的克氏针直接放入该驱动装置中，并通过与连接套配合的钻卡头固定，进行骨折部位的固定手术。The Chinese utility model patent invention with the invention number 201220430832.3 published on July 10, 2013 is named "a medical drill", which includes a main body with a connecting sleeve, and a hollow cylindrical driving device inside the main body , the power output shaft of the driving device is connected with the connection sleeve, and the connection sleeve can realize quick engagement with different instrument heads, and work under the drive of the power output shaft. In addition, the design of the hollow driving device of the product can also directly put Kirschner wires of different lengths into the driving device, and fix them with the drill chuck matched with the connecting sleeve to perform the fixation operation on the fracture site.
上述万能接头或连接套的设计，确实能实现一机多用，通用性强的功能。然而，也带来了新的技术问题，如：为了解决通用性或便于安装的问题，连接套的内腔一般比实际安装的部件，如锯钻头的直径要大许多，也即连接套的内腔与锯钻头的外表面之间总会存在一定的间隙。这个间隙的存在，一方面会带来较大的工作噪音，影响手术病人的康复；另一方面，间隙，会使锯钻头发生抖动或晃动，影响手术的准确度。当使用一段时间后，抖动可能会使电机主轴发生磨损，从而使锯钻头与电机主轴的配合不默契，出现故障等，影响手术的顺利进行。The design of the above-mentioned universal joint or connecting sleeve can indeed realize the function of one machine with multiple functions and strong versatility. However, it also brings new technical problems, such as: in order to solve the problem of versatility or ease of installation, the inner cavity of the connecting sleeve is generally much larger than the actual installed parts, such as the diameter of the saw drill bit, that is, the inner cavity of the connecting sleeve There will always be some clearance between the cavity and the outer surface of the saw bit. The existence of this gap, on the one hand, will bring greater working noise, which will affect the recovery of the surgical patient; on the other hand, the gap will cause the saw drill bit to vibrate or shake, affecting the accuracy of the operation. After using for a period of time, the vibration may cause the motor spindle to wear out, so that the coordination between the saw drill bit and the motor spindle will not be tacit, and malfunctions will occur, which will affect the smooth progress of the operation.
发明内容Contents of the invention
本发明要解决的技术问题是针对上述现有技术的不足，而提供一种通用性强、操作简单、锯钻头与套管之间配合紧密，不会产生抖动，噪音小的具有防抖功能的医用电动锯钻。The technical problem to be solved by the present invention is to aim at the deficiencies of the above-mentioned prior art, and to provide a kind of anti-shake function with strong versatility, simple operation, close cooperation between the saw drill bit and the casing, no vibration, and low noise. Medical Electric Saw Drill.
为解决上述技术问题，本发明采用的技术方案是：In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
一种具有防抖功能的医用电动锯钻，包括电机、与电机的驱动轴相连接的锯钻头和套装于锯钻头外侧的套管，所述套管的顶端外圆周上均匀设置有若干个小通孔，位于小通孔外侧的套管上套装有一个内转套，该内转套的内表面设置有一个圆弧锥面，该圆弧锥面的开口指向套管的底端；圆弧锥面与套管之间形成一个锥形容腔，锥形容腔内设置有一个环状的推块；所述推块沿其圆周方向均匀设置有若干个大通孔，每个大通孔内放置一个钢珠；每个大通孔的直径大于钢珠的直径，每个小通孔的直径小于钢珠的直径；所述推块的顶端与锥形容腔的闭合端相接触，推块的底端连接有弹簧，该弹簧套装于套管的外圆周上；所述内转套和弹簧的外侧套装有一个外转套，该外转套与内转套之间通过至少一个止退块相连接。A medical electric saw drill with an anti-shake function, comprising a motor, a saw drill bit connected to the drive shaft of the motor, and a casing set on the outside of the saw drill bit, and several small holes are evenly arranged on the outer circumference of the top of the casing Through hole, an inner swivel sleeve is set on the casing outside the small through hole, the inner surface of the inner swivel sleeve is provided with an arc cone surface, and the opening of the arc cone surface points to the bottom end of the casing; the arc A conical cavity is formed between the conical surface and the casing, and an annular push block is arranged in the conical cavity; several large through holes are evenly arranged on the push block along its circumferential direction, and a steel ball is placed in each large through hole The diameter of each large through hole is greater than the diameter of the steel ball, and the diameter of each small through hole is smaller than the diameter of the steel ball; the top of the push block is in contact with the closed end of the tapered cavity, and the bottom end of the push block is connected with a spring. The spring is fitted on the outer circumference of the casing; the inner rotating sleeve and the outer side of the spring are fitted with an outer rotating sleeve, and the outer rotating sleeve and the inner rotating sleeve are connected through at least one stop block.
所述小通孔、大通孔和钢珠分别有三个。There are three small through holes, three large through holes and three steel balls respectively.
位于所述内转套底部的套管上套装一个外护套，该外护套具有一个安装部，该安装部设置于弹簧与外转套之间，用于弹簧的安装与限位；安装部与外转套之间为固定连接。An outer sheath is placed on the casing at the bottom of the inner sleeve, and the outer sheath has a mounting portion, which is arranged between the spring and the outer sleeve for installation and positioning of the spring; the mounting portion It is a fixed connection with the outer turning sleeve.
所述外护套还具有一个与安装部一体设置的导向部。The outer sheath also has a guide part integrally provided with the mounting part.
所述安装部与外转套之间通过若干个圆柱销相连接。The mounting part is connected with the outer rotating sleeve through several cylindrical pins.
所述止退块有三个。There are three stop blocks.
本发明采用上述结构后，具有如下有益效果：After the present invention adopts the above structure, it has the following beneficial effects:
1.上述套管的使用，能实现一机多用，通用性强的功能。1. The use of the above bushing can realize the function of one machine with multiple functions and strong versatility.
2.上述圆弧锥面、钢珠及弹簧等的设计，针对不同直径的锯钻头，钢珠均能对其进行限位，使其与套管之间紧密配合，不会产生抖动，从而能使手术的准确度高，并且噪音小，利于病人的康复。2. The design of the above-mentioned circular arc cone surface, steel ball and spring, etc., for the saw drill bits of different diameters, the steel ball can limit it, so that it can be closely matched with the sleeve without shaking, so that the operation can be performed The accuracy is high, and the noise is small, which is conducive to the rehabilitation of patients.
附图说明Description of drawings
图1是本发明一种具有防抖功能的医用电动锯钻的结构示意图。Fig. 1 is a structural schematic diagram of a medical electric saw drill with an anti-shake function according to the present invention.
其中有：10.套管；11.小通孔20.外转套；21.止退块；22.圆柱销；30.内转套；31.圆弧锥面；32.锥形容腔；40.推块；41.大通孔；42.钢珠；50.外护套；51.安装部；52.弹簧；53.导向部；60.电机。Among them: 10. Sleeve; 11. Small through hole 20. Outer sleeve; 21. Backstop block; 22. Cylindrical pin; 30. Inner sleeve; 31. Arc cone surface; .Push block; 41. Large through hole; 42. Steel ball; 50. Outer sheath; 51. Installation part; 52. Spring; 53. Guide part; 60. Motor.
具体实施方式Detailed ways
下面结合附图和具体较佳实施方式对本发明作进一步详细的说明。The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.
如图1所示，一种具有防抖功能的医用电动锯钻，包括电机60、与电机60的驱动轴相连接的锯钻头和套装于锯钻头外侧的套管10。As shown in FIG. 1 , a medical electric saw drill with anti-shake function includes a motor 60 , a saw drill bit connected to the drive shaft of the motor 60 , and a sleeve 10 sleeved on the outside of the saw drill bit.
上述套管10的顶端外圆周上均匀设置有若干个小通孔11，优选为3个。位于小通孔11外侧的套管10上套装有一个内转套30。Several small through-holes 11 are uniformly arranged on the outer circumference of the top end of the sleeve 10 , preferably three. An inner rotating sleeve 30 is sleeved on the casing 10 located outside the small through hole 11 .
内转套30的内表面设置有一个圆弧锥面31，该圆弧锥面31的开口指向套管10的底端。圆弧锥面31与套管10之间形成一个锥形容腔32，锥形容腔32内设置有一个环状的推块40。The inner surface of the inner rotating sleeve 30 is provided with an arc conical surface 31 , and the opening of the arc conical surface 31 points to the bottom end of the casing 10 . A conical cavity 32 is formed between the arc-shaped conical surface 31 and the casing 10 , and an annular push block 40 is disposed in the conical cavity 32 .
推块40沿其圆周方向均匀设置有若干个大通孔41，优选为3个。每个大通孔41内放置一个钢珠42；每个大通孔41的直径大于钢珠42的直径，每个小通孔11的直径小于钢珠42的直径。这样，钢珠42能随着推块40在锥形容腔32内移动，但不能掉落至套管10的空腔内。The push block 40 is uniformly provided with several large through holes 41 along its circumferential direction, preferably three. A steel ball 42 is placed in each large through hole 41 ; the diameter of each large through hole 41 is larger than the diameter of the steel ball 42 , and the diameter of each small through hole 11 is smaller than the diameter of the steel ball 42 . In this way, the steel ball 42 can move in the tapered cavity 32 along with the push block 40 , but cannot fall into the cavity of the bushing 10 .
推块40的顶端与锥形容腔32的闭合端相接触，推块40的底端与弹簧52连接，弹簧52的弹力，能推动推块40，使钢珠42能处于圆弧锥面31的闭合端处，使钢珠42能够受到内转套30对其施加的轴向压力，迫使钢珠42向套管10的轴心进行移动，从而使钢珠42与位于套管10内的锯钻头之间形成紧配合，从而能防止锯钻头的轴向发生抖动。The top of the push block 40 is in contact with the closed end of the tapered cavity 32, and the bottom end of the push block 40 is connected with the spring 52. The elastic force of the spring 52 can push the push block 40, so that the steel ball 42 can be in the closed position of the arc cone surface 31. At the end, the steel ball 42 can be subjected to the axial pressure exerted by the inner rotating sleeve 30, forcing the steel ball 42 to move to the axis of the casing 10, so that a tight connection is formed between the steel ball 42 and the saw bit located in the casing 10. Cooperate, so as to prevent the axial vibration of the saw bit.
位于内转套30底部的套管10上设置有外护套50，该外护套50包括一个安装部51和一个导向部53，两者优选一体设置。安装部51带有一个环状容腔，该环状容腔内设置有套装于套管10上的弹簧52。安装部51能用于弹簧52的安装与限位。An outer sheath 50 is provided on the casing 10 at the bottom of the inner rotating sleeve 30, and the outer sheath 50 includes a mounting portion 51 and a guiding portion 53, both of which are preferably integrated. The installation part 51 has an annular cavity, and a spring 52 sleeved on the sleeve 10 is arranged in the annular cavity. The mounting part 51 can be used for mounting and limiting the spring 52 .
内转套30和安装部51外侧套装有一个外转套20，该外转套20与内转套30之间通过至少一个止退块21相连接，优选为3个。安装部51与外转套20之间通过若干个圆柱销22相连接。An outer swivel sleeve 20 is fitted on the outside of the inner swivel sleeve 30 and the installation portion 51 , and the outer swivel sleeve 20 and the inner swivel sleeve 30 are connected by at least one stop block 21 , preferably three pieces. The mounting part 51 is connected with the outer rotary sleeve 20 through several cylindrical pins 22 .
以上详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种等同变换，这些等同变换均属于本发明的保护范围。The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be carried out to the technical solutions of the present invention. These equivalent transformations All belong to the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510024616.7ACN104586465B (en) | 2015-01-19 | 2015-01-19 | Medical electric sawing drill with anti-shaking function |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510024616.7ACN104586465B (en) | 2015-01-19 | 2015-01-19 | Medical electric sawing drill with anti-shaking function |
| Publication Number | Publication Date |
|---|---|
| CN104586465Atrue CN104586465A (en) | 2015-05-06 |
| CN104586465B CN104586465B (en) | 2017-02-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510024616.7AExpired - Fee RelatedCN104586465B (en) | 2015-01-19 | 2015-01-19 | Medical electric sawing drill with anti-shaking function |
| Country | Link |
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| CN (1) | CN104586465B (en) |
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