WO2009018720A1 - Powered bone cutter - Google Patents

Powered bone cutter Download PDF

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Publication number
WO2009018720A1
WO2009018720A1 PCT/CN2008/001431 CN2008001431W WO2009018720A1 WO 2009018720 A1 WO2009018720 A1 WO 2009018720A1 CN 2008001431 W CN2008001431 W CN 2008001431W WO 2009018720 A1 WO2009018720 A1 WO 2009018720A1
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WO
WIPO (PCT)
Prior art keywords
chain
guide plate
handle
electric bone
piece
Prior art date
Application number
PCT/CN2008/001431
Other languages
French (fr)
Chinese (zh)
Inventor
Ximing Zhou
Original Assignee
Beijing Montagne Medical Device Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Montagne Medical Device Co., Ltd filed Critical Beijing Montagne Medical Device Co., Ltd
Publication of WO2009018720A1 publication Critical patent/WO2009018720A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/149—Chain, wire or band saws

Definitions

  • the invention relates to an orthopedic bone knife, in particular to an orthopedic electric bone knife. Background technique
  • An electric bone knife of the prior art as described in U.S. Patent No. 6,113,618, includes a saw blade and a handle, a front end of the handle is mounted with a joint, and the joint is connected to the saw blade, and the joint is swingable back and forth about a central axis perpendicular to the longitudinal axis of the rear of the handle.
  • This electric bone knife can only be swung and cut in one direction, and it cannot flexibly change the direction of cutting.
  • the electric bone knife has a large volume and a large cutting operation area.
  • the technical problem to be solved by the present invention is to provide an electric bone knife capable of controlling the cutting direction, flexible in use, small in size, and small in cutting area.
  • the electric bone knife of the invention comprises a blade and a handle, the blade is mounted on the handle, the blade comprises an endless chain and a guide plate, the circulation chain is mounted on the outer circumference of the guide plate, the circulation chain comprises a tooth edge and a chain piece, and the chain piece is adjacent to the chain piece The tooth edge, the motor is installed in the handle, and the motor drives the circulation chain to move along the outer circumference of the guide.
  • the tooth edges are designed to have different shapes for convenient cutting, such as crescent-shaped double teeth, single triangular teeth and multi-triangular teeth, etc., and the number of teeth on each tooth edge can be a single , two or more.
  • Each of the tooth edges may also include two separate teeth that are inclined in opposite directions in a lateral direction relative to the direction of movement of the tooth edges.
  • the outer circumference of the guide plate is provided with a groove, and the lower end of the tooth edge is inserted in the groove.
  • the links between adjacent tooth edges are a two-piece outer connection or a single-piece outer connection, and the single-piece outer connections are on the same side or spaced apart sides.
  • the outer periphery of the guide plate is provided with a protrusion, and the lower end of the tooth edge is double-layered and spans the outer peripheral protrusion of the guide plate. Chain connection between all adjacent tooth edges Connected as a single-chip connection.
  • a sprocket is disposed at a front end of the handle, and the sprocket is mounted on the transmission shaft, and the blade and the circulation chain bypass the sprocket.
  • the motor output shaft is coupled to a drive gear that meshes with a driven gear on the drive shaft.
  • the electric bone knife of the invention is driven by a micro motor, and the driving gear drives the driven gear to move.
  • the sprocket on the transmission shaft drives the blade and the circulation chain to move around the outer circumference of the guide plate.
  • the electric bone knife of the invention can flexibly convert the cutting angle, has a small cutting operation area, is convenient for orthopedic slitting, and effectively replaces the osteotome, and the electric bone knife is small in size and convenient to use.
  • Figure 1 is a schematic view of an electric bone knife of the present invention
  • Figure 2 is a cross-sectional view of the electric bone knife of the present invention.
  • Figure 3 is a schematic view of a blade of a first embodiment of the electric bone knife of the present invention
  • Figure 4 is a schematic view of a guide plate of the first embodiment of the electric bone knife of the present invention
  • Figure 5 is a second embodiment of the electric bone knife of the present invention
  • Figure 6a to 6d are schematic views of several tooth edges of the electric bone knife of the present invention, wherein the left side is a front view of the tooth edge, and the right side is the AA cross-sectional view of the corresponding tooth edge, respectively.
  • 6a and 6b show two exemplary tooth edges in accordance with a first embodiment of the present invention
  • Figs. 6c and 6d show two exemplary tooth edges in accordance with a second embodiment of the present invention;
  • Figure 7 is a schematic illustration of two exemplary chains of an electric bone knife that can be used in the present invention.
  • FIG. 8a to 8d show the connection relationship between the chain and the tooth edge of the electric bone knife of the present invention, wherein Fig. 8a shows the double piece outer connection of the chain, and Fig. 8b shows the outer connection of the same side of the chain piece, Figure 8c shows the monolithic outer connection of the spacers on the opposite sides, and Figure 8d shows the intra-piece connection of the links.
  • the electric bone knife of the present invention includes a blade 2 and a handle 1, and the blade 2 is mounted on the handle 1.
  • the blade 2 includes an endless chain and a guide 5, as shown in FIG.
  • the endless chain is mounted on the outer circumference of the guide 5, and the endless chain includes the tooth edge 3 and the link 4, and Fig. 7 shows the chain of the electric bone cutter of the present invention.
  • the teeth on the tooth edge 3 may be single or multiple.
  • the motor 6 is mounted in the handle 1, and the motor 6 can drive the circulation chain to move along the outer circumference of the guide plate 5 through the transmission.
  • the front end of the handle 1 is provided with a sprocket 8 on which the sprocket 8 is mounted.
  • the endless chain of the blade 2 bypasses the sprocket 8.
  • the drive gear 10 of the motor 6 meshes with the driven gear 9 of the drive shaft 7.
  • the electric bone cutter is driven by the motor 6, and the driving gear 10 drives the driven gear 9 to move.
  • the sprocket 8 on the transmission shaft 7 drives the circulating chain of the blade 2 to move around the outer circumference of the guide 5.
  • the outer periphery of the guide plate 5 is provided with a groove, and the lower end of the tooth edge 3 is inserted into the groove and is slidable in the groove.
  • the chain piece 4 and the tooth edge 3 may be connected by a double piece of the outer piece of the chain, a single piece of the outer side of the same side of the chain or a single piece of the outer side of the spaced side.
  • the teeth of the tooth edge 3 may be crescent-shaped double teeth.
  • the teeth of the toothed edge 3 can also take any other form known in the art.
  • the outer periphery of the guide plate 5 is provided with a projection, and the lower end of the tooth edge 3 has a double-layered open structure and straddles the projection of the outer periphery of the guide plate 5.
  • the link 4 is connected to the adjacent tooth edge 3 by a single piece internal connection, as shown in Fig. 8d.
  • the teeth of the tooth edge 3 may be a plurality of triangular teeth, as shown in Fig. 6b, or may have shapes as shown in Figs. 6a, 6c and 6d. Wherein, as shown in Fig.
  • each of the tooth edges 3 includes two separate teeth which are inclined in opposite directions in a lateral direction with respect to the direction of movement of the tooth edges.
  • the teeth of the toothed edge 3 can also take any other form known in the art.

Abstract

A powered bone cutter includes a cutting blade (2) and a handle (1). The cutting blade (2) is mounted on the handle (1) and said cutting blade (2) includes an endless chain and a guide plate (5). The endless chain is mounted on the periphery of the guide plate (5) and consists of tooth-edges (3) and chain links (4) for connecting the adjacent tooth-edges (3). An electric engine (6) is mounted in the handle (1), and the electric engine (6) drives the endless chain of the cutting blade (2) by transmission device to move around the periphery of the guide plate (5).

Description

电动骨刀 技术领域  Electric bone knife
本发明涉及一种骨科骨刀， 特别涉及一种骨科电动骨刀。 背景技术  The invention relates to an orthopedic bone knife, in particular to an orthopedic electric bone knife. Background technique
现有技术中的电动骨刀， 如美国专利 US6113618所述， 包 括锯条和手柄， 手柄的前端安装一接头， 接头连接锯条， 接头可 围绕垂直于手柄后部的纵轴的中心轴来回摆动。 此电动骨刀只能 在一个方向上摆动切割， 不能灵活的转换切割的方向。 并且电动 骨刀的体积大， 切割操作面积大。  An electric bone knife of the prior art, as described in U.S. Patent No. 6,113,618, includes a saw blade and a handle, a front end of the handle is mounted with a joint, and the joint is connected to the saw blade, and the joint is swingable back and forth about a central axis perpendicular to the longitudinal axis of the rear of the handle. This electric bone knife can only be swung and cut in one direction, and it cannot flexibly change the direction of cutting. Moreover, the electric bone knife has a large volume and a large cutting operation area.
发明内容 Summary of the invention
本发明所要解决的技术问题是提供一种能够控制切割方向， 使用灵活， 体积小， 切割面积小的电动骨刀。  The technical problem to be solved by the present invention is to provide an electric bone knife capable of controlling the cutting direction, flexible in use, small in size, and small in cutting area.
本发明的电动骨刀， 包括刀片和手柄， 刀片安装在手柄上， 所述刀片包括循环链和导板， 循环链安装在导板的外周， 循环链 包括齿刃和链片， 链片连接相邻的齿刃， 手柄内安装电机， 电机 带动循环链沿导板外周运动。  The electric bone knife of the invention comprises a blade and a handle, the blade is mounted on the handle, the blade comprises an endless chain and a guide plate, the circulation chain is mounted on the outer circumference of the guide plate, the circulation chain comprises a tooth edge and a chain piece, and the chain piece is adjacent to the chain piece The tooth edge, the motor is installed in the handle, and the motor drives the circulation chain to move along the outer circumference of the guide.
本发明的电动骨刀， 所述的齿刃为方便切割而设计成不同的 形状， 如月牙形双齿、 单三角形齿和多三角形齿等， 每个齿刃上 的齿的个数可以为单个、 两个或两个以上。 每个齿刃还可包括两 个单独的齿， 这两个单独的齿在相对于所述齿刃运动方向的横向 方向上向相反方向倾斜。  In the electric bone knives of the present invention, the tooth edges are designed to have different shapes for convenient cutting, such as crescent-shaped double teeth, single triangular teeth and multi-triangular teeth, etc., and the number of teeth on each tooth edge can be a single , two or more. Each of the tooth edges may also include two separate teeth that are inclined in opposite directions in a lateral direction relative to the direction of movement of the tooth edges.
本发明的电动骨刀， 所述导板的外周设置凹槽， 齿刃的下端 插在凹槽内。 相邻齿刃间的链片为双片外连接或单片外连接， 所 述单片外连接为同侧或间隔异侧。  In the electric bone knife of the present invention, the outer circumference of the guide plate is provided with a groove, and the lower end of the tooth edge is inserted in the groove. The links between adjacent tooth edges are a two-piece outer connection or a single-piece outer connection, and the single-piece outer connections are on the same side or spaced apart sides.
本发明的电动骨刀， 所述导板的外周边设置突起， 所述齿刃 下端为双层， 跨在导板的外周突起上。 所有相邻齿刃间的链片连 接为单片内连接。 In the electric bone cutter of the present invention, the outer periphery of the guide plate is provided with a protrusion, and the lower end of the tooth edge is double-layered and spans the outer peripheral protrusion of the guide plate. Chain connection between all adjacent tooth edges Connected as a single-chip connection.
本发明的电动骨刀， 所述手柄的前端设置链轮， 链轮安装在 传动轴上， 刀片与循环链共同绕过链轮。 电机输出轴与主动齿轮 联接， 该主动齿轮与传动轴上的从动齿轮啮合。  In the electric bone knife of the present invention, a sprocket is disposed at a front end of the handle, and the sprocket is mounted on the transmission shaft, and the blade and the circulation chain bypass the sprocket. The motor output shaft is coupled to a drive gear that meshes with a driven gear on the drive shaft.
本发明所述的电动骨刀由微电机驱动， 主动齿轮带动从动齿 轮运动， 传动轴上的链轮带动刀片与循环链共同围绕导板外周运 动。 本发明所述的电动骨刀能灵活地转换切割的角度， 切割操作 面积小， 方便用于骨科开缝， 有效的代替骨凿， 并且电动骨刀的 体积小， 使用方便。  The electric bone knife of the invention is driven by a micro motor, and the driving gear drives the driven gear to move. The sprocket on the transmission shaft drives the blade and the circulation chain to move around the outer circumference of the guide plate. The electric bone knife of the invention can flexibly convert the cutting angle, has a small cutting operation area, is convenient for orthopedic slitting, and effectively replaces the osteotome, and the electric bone knife is small in size and convenient to use.
附图说明 DRAWINGS
图 1是本发明的电动骨刀的示意图；  Figure 1 is a schematic view of an electric bone knife of the present invention;
图 2是本发明的电动骨刀的剖视图；  Figure 2 is a cross-sectional view of the electric bone knife of the present invention;
图 3是本发明的电动骨刀的第一实施例的刀片的示意图； 图 4是本发明的电动骨刀的第一实施例的导板的示意图； 图 5是本发明的电动骨刀的第二实施例的导板的示意图； 图 6a至 6d是本发明的电动骨刀的几种齿刃的示意图， 其中 左侧的是齿刃的正视图， 右侧的分别是相应齿刃的 A-A剖视图， 图 6a和图 6b示出根据本发明第一实施例的两种示例性齿刃， 图 6c和 6d示出根据本发明第二实施例的两种示例性齿刃；  Figure 3 is a schematic view of a blade of a first embodiment of the electric bone knife of the present invention; Figure 4 is a schematic view of a guide plate of the first embodiment of the electric bone knife of the present invention; Figure 5 is a second embodiment of the electric bone knife of the present invention Figure 6a to 6d are schematic views of several tooth edges of the electric bone knife of the present invention, wherein the left side is a front view of the tooth edge, and the right side is the AA cross-sectional view of the corresponding tooth edge, respectively. 6a and 6b show two exemplary tooth edges in accordance with a first embodiment of the present invention, and Figs. 6c and 6d show two exemplary tooth edges in accordance with a second embodiment of the present invention;
图 7 是可用于本发明的电动骨刀的两种示例性链片的示意 图；  Figure 7 is a schematic illustration of two exemplary chains of an electric bone knife that can be used in the present invention;
图 8a至 8d示出本发明的电动骨刀的链片与齿刃之间的连接 关系， 其中图 8a示出链片双片外连接， 图 8b示出同侧的链片单 片外连接， 图 8c示出间隔异侧的链片单片外连接， 图 8d示出链 片单片内连接。  8a to 8d show the connection relationship between the chain and the tooth edge of the electric bone knife of the present invention, wherein Fig. 8a shows the double piece outer connection of the chain, and Fig. 8b shows the outer connection of the same side of the chain piece, Figure 8c shows the monolithic outer connection of the spacers on the opposite sides, and Figure 8d shows the intra-piece connection of the links.
具体实施方式 detailed description
下面参照附图说明本发明的实施例。 如图 1和图 2所示, 本发明的电动骨刀包括刀片 2和手柄 1， 刀片 2安装在手柄 1上。所述刀片 2包括循环链和导板 5，如图 3 所示。 循环链安装在导板 5的外周， 循环链包括齿刃 3和链片 4， 图 7示出本发明的电动骨刀的链片。 所述齿刃 3上的齿可以是单 个或多个。 手柄 1 内安装电机 6, 电机 6可通过传动装置驱动循 环链沿导板 5外周运动。 所述手柄 1的前端设置链轮 8， 链轮 8 安装在传动轴 7上。 刀片 2的循环链绕过链轮 8。 电机 6的主动 齿轮 10与传动轴 7的从动齿轮 9啮合。 电动骨刀由电机 6驱动， 主动齿轮 10带动从动齿轮 9运动，传动轴 7上的链轮 8带动刀片 2的循环链围绕导板 5的外周运动。 Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the electric bone knife of the present invention includes a blade 2 and a handle 1, and the blade 2 is mounted on the handle 1. The blade 2 includes an endless chain and a guide 5, as shown in FIG. The endless chain is mounted on the outer circumference of the guide 5, and the endless chain includes the tooth edge 3 and the link 4, and Fig. 7 shows the chain of the electric bone cutter of the present invention. The teeth on the tooth edge 3 may be single or multiple. The motor 6 is mounted in the handle 1, and the motor 6 can drive the circulation chain to move along the outer circumference of the guide plate 5 through the transmission. The front end of the handle 1 is provided with a sprocket 8 on which the sprocket 8 is mounted. The endless chain of the blade 2 bypasses the sprocket 8. The drive gear 10 of the motor 6 meshes with the driven gear 9 of the drive shaft 7. The electric bone cutter is driven by the motor 6, and the driving gear 10 drives the driven gear 9 to move. The sprocket 8 on the transmission shaft 7 drives the circulating chain of the blade 2 to move around the outer circumference of the guide 5.
根据本发明的第一实施例， 如图 4所示， 所述导板 5的外周 设置凹槽， 齿刃 3的下端插在凹槽内， 并且能在所述凹槽中滑动。 如图 8a至 8c所示，链片 4与齿刃 3之间可采用链片双片外连接、 同侧的链片单片外连接或间隔异侧的链片单片外连接。 所述的齿 刃 3的齿可以是月牙形双齿。 但应理解， 齿刃 3的齿也可以采用 本领域已知的任何其它形式。  According to the first embodiment of the present invention, as shown in Fig. 4, the outer periphery of the guide plate 5 is provided with a groove, and the lower end of the tooth edge 3 is inserted into the groove and is slidable in the groove. As shown in Figs. 8a to 8c, the chain piece 4 and the tooth edge 3 may be connected by a double piece of the outer piece of the chain, a single piece of the outer side of the same side of the chain or a single piece of the outer side of the spaced side. The teeth of the tooth edge 3 may be crescent-shaped double teeth. However, it should be understood that the teeth of the toothed edge 3 can also take any other form known in the art.
根据本发明的第二实施例， 如图 5所示， 导板 5的外周边设 有突起， 齿刃 3下端为双层开口结构， 并且跨在导板 5外周的突 起上。 链片 4采用单片内连接方式连接相邻的齿刃 3， 如图 8d所 示。 所述齿刃 3的齿可以是多个三角形齿， 如图 6b所示， 也可以 是如图 6a、 6c和 6d所示的形状。 其中如图 6d所示， 每个齿刃 3 包括两个单独的齿， 这两个单独的齿在相对于所述齿刃运动方向 的横向方向上向相反方向倾斜。 但应理解， 齿刃 3的齿也可以采 用本领域已知的任何其它形式。  According to the second embodiment of the present invention, as shown in Fig. 5, the outer periphery of the guide plate 5 is provided with a projection, and the lower end of the tooth edge 3 has a double-layered open structure and straddles the projection of the outer periphery of the guide plate 5. The link 4 is connected to the adjacent tooth edge 3 by a single piece internal connection, as shown in Fig. 8d. The teeth of the tooth edge 3 may be a plurality of triangular teeth, as shown in Fig. 6b, or may have shapes as shown in Figs. 6a, 6c and 6d. Wherein, as shown in Fig. 6d, each of the tooth edges 3 includes two separate teeth which are inclined in opposite directions in a lateral direction with respect to the direction of movement of the tooth edges. However, it should be understood that the teeth of the toothed edge 3 can also take any other form known in the art.
虽然已参照具体实施例说明了本发明， 但应理解， 本发明中 的部件可用技术上等效的部件进行替换， 并且可对本发明做出各 种修改和变型而不脱离本发明的范围。 附图标记说明 Although the present invention has been described with reference to the preferred embodiments thereof, it is understood that the invention may be substituted by the technically equivalent components, and various modifications and changes may be made without departing from the scope of the invention. Description of the reference numerals
1手柄， 2刀片， 3齿刃， 4链片， 5导板， 6电机， 7传动轴， 链轮， 9从动齿轮， 10主动齿轮。  1 handle, 2 blades, 3 teeth edge, 4 chain pieces, 5 guide plates, 6 motors, 7 drive shafts, sprocket, 9 driven gears, 10 drive gears.

Claims

1. 一种电动骨刀， 其包括刀片 （2) 和手柄 （1)， 刀片 （2) 安装在手柄 （1)上， 所述刀片 （2) 包括循环链和导板（5)， 循 环链安装在导板（5)的外周上，循环链包括齿刃（3)和链片（4)， 链片 （4)连接相邻的齿刃 （3)， 手柄 （1) 内安装电机（6)， 所 述电机（6) 能通过传动装置驱动所迷循环链沿所述导板（5) 的 外周运动， 其特征在于， 导板（5) 的外周设置凹槽， 齿刃 （3) 的下端插在所述凹槽内， 并且能沿所述凹槽滑动。 An electric bone knife comprising a blade (2) and a handle (1) mounted on a handle (1), the blade (2) comprising an endless chain and a guide plate (5), an endless chain installation On the outer circumference of the guide plate (5), the circulation chain includes a tooth edge (3) and a chain piece (4), the chain piece (4) is connected to the adjacent tooth edge (3), and the motor (6) is mounted in the handle (1). The motor (6) is capable of driving the circulation chain along the outer circumference of the guide plate (5) by a transmission device, wherein the outer circumference of the guide plate (5) is provided with a groove, and the lower end of the tooth edge (3) is inserted therein. Inside the groove, and can slide along the groove.
2. 根据权利要求 1所述的电动骨刀， 其特征在于， 所述相邻 齿刃 （3) 间的链片 （4) 为双片外连接或单片外连接。  The electric bone knife according to claim 1, characterized in that the chain piece (4) between the adjacent tooth edges (3) is a double piece outer connection or a single piece outer connection.
3. 根据权利要求 2所述的电动骨刀， 其特征在于， 所述相邻 齿刃 （3) 间的链片 （4) 的单片外连接为同侧或间隔异侧。  The electric bone knife according to claim 2, characterized in that the single piece outer connection of the links (4) between the adjacent tooth edges (3) is the same side or the spaced side.
4. 一种电动骨刀， 其包括刀片 （2) 和手柄 （1), 刀片 （2) 安装在手柄 （1)上， 所述刀片 （2) 包括循环链和导板（5)， 循 环链安装在导板（5)的外周上，循环链包括齿刃（3)和链片（4)， 链片 （4)连接相邻的齿刃 （3)， 手柄 （1) 内安装电机（6)， 所 述电机（6) 能通过传动装置驱动所述循环链沿所述导板（5) 的 外周运动， 其特征在于， 所述导板（5)的外周设置突起， 所述齿 刃 （3) 下端为双层开口结构， 以便使所述齿刃 （3) 能跨在导板 4. An electric bone knife comprising a blade (2) and a handle (1) mounted on a handle (1), the blade (2) comprising an endless chain and a guide plate (5), an endless chain installation On the outer circumference of the guide plate (5), the circulation chain includes a tooth edge (3) and a chain piece (4), the chain piece (4) is connected to the adjacent tooth edge (3), and the motor (6) is mounted in the handle (1). The motor (6) can drive the circulation chain along the outer circumference of the guide plate (5) by a transmission device, wherein the outer circumference of the guide plate (5) is provided with a protrusion, and the lower end of the tooth edge (3) is a double-layered opening structure to enable the tooth edge (3) to span the guide
(5) 外周的突起上， 并且能沿所述突起滑动。 (5) The protrusion on the outer circumference and sliding along the protrusion.
5. 根据权利要求 4所述的电动骨刀， 其特征在于， 相邻齿刃 (3) 间的链片 （4) 的连接为单片内连接。  5. An electric bone knife according to claim 4, characterized in that the connection of the links (4) between adjacent tooth edges (3) is a one-piece inner connection.
6. 根据权利要求 1或 4所述的电动骨刀， 其特征在于， 所述 齿刃 （3)上的齿为单个或多个。  The electric bone knife according to claim 1 or 4, characterized in that the teeth on the tooth edge (3) are single or plural.
7. 根据权利要求 1或 4所述的电动骨刀， 其特征在于， 所述 齿刃（3)具有两个单独的齿， 所述两个单独的齿在相对于所述齿 刃运动方向的横向方向上向相反方向倾斜。 7. The electric bone knife according to claim 1 or 4, wherein the tooth edge (3) has two separate teeth, the two separate teeth being opposite to the tooth The direction of the blade movement is inclined in the opposite direction in the lateral direction.
8. 根据权利要求 1或 4所述的电动骨刀， 其特征在于， 所述 手柄（ 1 )的前端设置链轮（ 8 )， 链轮（ 8 )安装在传动轴（ 7 )上， 刀片 （2 ) 上的循环链绕过链轮（8 )。  The electric bone knife according to claim 1 or 4, characterized in that the front end of the handle (1) is provided with a sprocket (8), and the sprocket (8) is mounted on the transmission shaft (7), the blade ( 2) The endless chain bypasses the sprocket (8).
9. 根据权利要求 1或 4所述的电动骨刀， 其特征在于， 所述 电机（ 6 )的主动齿轮（ 10 )与传动轴（ 7 )的从动齿轮（ 9 )啮合。 The electric bone knife according to claim 1 or 4, characterized in that the driving gear (10) of the motor (6) meshes with the driven gear (9) of the transmission shaft (7).
PCT/CN2008/001431 2007-08-08 2008-08-06 Powered bone cutter WO2009018720A1 (en)

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CNA2007101200429A CN101361670A (en) 2007-08-08 2007-08-08 Electric osteotome
CN200710120042.9 2007-08-08

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JP2014527859A (en) * 2011-07-27 2014-10-23 ストライカー・アイルランド・リミテッド A blade cartridge having a surgical sagittal saw body and a reinforcing rib formed integrally with the blade bar
KR101825991B1 (en) * 2016-08-10 2018-02-06 인제대학교 산학협력단 Device for barrel vault osteotomy
CN113331904A (en) * 2021-06-07 2021-09-03 四川大学华西医院 Thoracoscope rib coping saw guide location suit

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