WO2015188735A1 - Ultrasonic bone cutter blade head and ultrasonic bone cutter having same - Google Patents
Ultrasonic bone cutter blade head and ultrasonic bone cutter having same Download PDFInfo
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- WO2015188735A1 WO2015188735A1 PCT/CN2015/081002 CN2015081002W WO2015188735A1 WO 2015188735 A1 WO2015188735 A1 WO 2015188735A1 CN 2015081002 W CN2015081002 W CN 2015081002W WO 2015188735 A1 WO2015188735 A1 WO 2015188735A1
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- cutter head
- bone cutter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
Definitions
- the present invention relates to the field of medical device technology, and in particular to an improved ultrasonic bone cutter head and an ultrasonic bone knife having the same.
- 1A shows a typical structure of a conventional ultrasonic bone cutter head 100' which has a multi-toothed shape with a wide tip portion and a large portion of the cutting edge portion which is not an effective main cutting portion, as shown in the figure. Shown in 1B.
- an ultrasonic bone cutter head 100' has the following problems. As shown in Fig. 2A, when the ultrasonic bone cutter head 100' is used, the bone 200' is biased toward the bone tissue as shown by F1 in Fig. 2A. When cutting is required, the ultrasonic bone cutter head 100' requires a force directed downwardly toward the bone tissue, which not only results in slow cutting speed, inefficiency, but also tends to cause the multi-toothed cutter head to break during operation. As shown by F2 in Fig. 2B. However, this may cause accidental insertion into the soft tissue 300' such as the spinal cord during the operation, resulting in irreparable damage to the operator. In addition, the ultrasonic bone cutter head 100' has a complicated shape, is difficult to process, and has high production cost.
- the present invention aims to solve at least one of the technical problems existing in the prior art.
- the present invention needs to provide an ultrasonic bone cutter head that not only uses high efficiency but also has a high cutting speed to reduce the operation time.
- the present invention needs to provide an ultrasonic bone cutter head, which is accurate in positioning when cutting, thereby improving the success rate of the operation.
- the present invention also needs to provide an ultrasonic osteotome comprising an ultrasonic bone cutter head as described above.
- An ultrasonic bone cutter head includes: a cutter bar; and a cutter head end, the cutter head end being coupled to the cutter bar, and the cutter head end being hook-shaped and including a hook tip and a hook a handle and a hook-shaped connecting portion connected between the hook tip and the hook handle, wherein the hook handle is connected to the cutter bar, and an inner edge and an outer edge of the hook-shaped connecting portion are respectively toothed .
- the ultrasonic bone cutter head according to the embodiment of the present invention since the cutting can be performed with the hook tip, the efficiency is high and the operation time is short, thereby reducing the labor intensity of the medical staff. In addition, accurate positioning during cutting, without slipping, can improve the success rate of surgery. In addition, the ultrasonic bone cutter head according to the embodiment of the invention isakily designed, can accurately control the cutting amount and shape of the bone, and reduce the amount of bone loss during the operation. Further, with an ultrasonic bone cutter head according to an embodiment of the present invention There is a hemostatic coagulation effect during the osteotomy, which reduces the amount of intraoperative blood loss. Further, the ultrasonic bone cutter head according to the embodiment of the present invention has low processing difficulty and low production cost. At the same time, since not only the inner edge of the toothed shape can be used for cutting, but also the outer edge of the toothed shape can be used for cutting, the use convenience of the ultrasonic bone cutter head is improved.
- the ultrasonic bone cutter head according to the present invention has the following additional technical features:
- the tip end is configured as a flat hook.
- the cross section of the stalk gradually becomes larger from the hook-shaped connecting portion toward the arbor.
- the other end of the cross-sectional hook valley of the hook tip is connected to the wide end of the hook tip.
- the ultrasonic bone cutter head further includes a blade body, the blade body is connected to the knife bar, and a joint of the blade bar and the blade body is a circular arc transition, and the blade body is formed There are wrenches.
- the shank is integrally formed with the tip end.
- the hook tip, the hook handle and the hook-shaped connecting portion are integrally formed.
- the adjacent tooth pitches of the teeth formed on the inner side of the hook-shaped connecting portion gradually become larger from the hook tip toward the hook shank.
- a hook-shaped ultrasonic bone cutter head comprising a cutter rod and a head end, one end of the head end being connected to one end of the cutter rod, the head end being hook-shaped, and the hook shape including a hook tip and a hook Valley and stalk, the edge of the hook is toothed.
- an ultrasonic osteotome comprising an ultrasonic bone cutter head as described above.
- 1A is a schematic view showing the structure of an ultrasonic bone cutter head in the prior art.
- FIG. 1B is a partially enlarged schematic view showing a portion A of FIG. 1A.
- FIGS. 2A, 2B show schematic views of the operation of a prior art ultrasonic bone cutter bit.
- FIG. 3 is a perspective view showing the structure of an ultrasonic bone cutter head according to an embodiment of the present invention.
- FIG. 4 is a front elevational view of an ultrasonic bone cutter bit of one embodiment of the present invention.
- Figure 5 is a top plan view of an ultrasonic bone cutter head of one embodiment of the present invention.
- Fig. 6 is a partially enlarged schematic view showing a portion B of Fig. 4.
- FIG. 7 is a schematic illustration of the state of use of an ultrasonic bone cutter bit in accordance with one embodiment of the present invention.
- FIG. 8 is a schematic illustration of another state of use of an ultrasonic bone cutter bit in accordance with one embodiment of the present invention.
- connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
- FIG. 3 is a perspective structural view of an ultrasonic bone cutter head 100 according to an embodiment of the present invention
- Figure 5 is a top plan view of an ultrasonic bone cutter head of one embodiment of the present invention.
- the ultrasonic bone cutter head 100 can include a tip end 1 and a shank 2, in accordance with an embodiment of the present invention.
- the cutter head end 1 is connected to the cutter bar 2, and the cutter head end portion 1 is hook-shaped and includes a hook tip 11, a hook handle 13 and a hook-shaped connecting portion connected between the hook tip 11 and the hook handle 13. 12, as shown in Figure 3-6.
- the tip end 1 is of a flat hook shape, as shown in Fig. 5, the tip end 1 comprises a hook tip 11, a hook or hook connection 12 and a stalk 13 , as shown in Figure 6.
- the shank 13 is connected to the shank 2, and the inner edge of the hook-shaped connecting portion 12 is toothed, and the outer edge of the hook-shaped connecting portion 12 is toothed, that is, the outer edge of the hook-shaped connecting portion 12 is provided with a plurality of grooves. 14.
- a tooth is defined between adjacent grooves, and the plurality of grooves define a plurality of teeth such that the outer edge of the hook-shaped connecting portion 12 is toothed.
- the ultrasonic bone cutter head 100 when the ultrasonic bone cutter head 100 is used, not only the toothed inner edge of the hook-shaped connecting portion 12 can be used for grinding the bone, but also the toothed outer edge of the hook-shaped connecting portion 12 can be used for grinding the bone.
- the use convenience of the ultrasonic bone cutter head 100 is improved.
- the cross section of the stalk 13 is gradually increased from the hook-shaped connecting portion 12 toward the shank 2, whereby the cantilever strength of the stalk is enhanced during the operation.
- the cross section of the hook tip 11 tapers in a direction toward the hook-shaped connecting portion 12.
- the ultrasonic bone cutter head further comprises a blade body 3, the knife bar 2 is connected to the blade body 3, the knife bar 2 and the blade body 3 are transitioned by a circular arc, and the connecting end of the blade body 3 is provided with a connecting thread 4.
- the blade body 3 is formed with a wrench bit 5, for example a regular hexagon, whereby it can be fixed or tightened with a tool such as a wrench during assembly.
- the connecting thread 4 of the tip end of the embodiment is connected to an ultrasonic transducer (not shown) and tightened with a corresponding wrench, and then the ultrasonic transducer is connected to the ultrasonic host, the operation can be performed. jobs.
- the shank 2 and the tip end portion 1 can be integrally formed, thereby reducing manufacturing costs. Further, the tip end 1, the shank 2 and the blade 3 may be integrally formed.
- the tooth pitch D of the adjacent teeth gradually becomes larger from the hook tip toward the hook shank.
- the hook-shaped ultrasonic bone cutter head 100 When the bone is required to be cut, when the hook-shaped ultrasonic bone cutter head 100 is used for operation, it can be used like a hook hook, or can be used like a sickle, and other random techniques, the hook of the hook end 1
- the tip 11 can be directly used for cutting, and when the hook tip 11 is used for cutting, the hook handle 13 acts as a latching position, thereby ensuring the cutting depth of the cutter head and protecting the surrounding bone tissue, thereby conveniently positioning and operating the ultrasonic bone cutter.
- the cutter head 100 Since the tip end 1 is configured in the form of a flat hook, it is also convenient for the user to position during use.
- the hook tip 11 in use, can also be used for a latching action against the upper or lower edge of the bone, and the toothed inner edge of the hook-shaped connecting portion 12 cuts the bone.
- the hook handle and the hook tip are simultaneously locked.
- the direction of force is parallel to the bone surface or backward. This forms a fulcrum with the hook tip 11 during the cutting process and cuts along this fulcrum.
- the advantage of this structure is that it can protect the surrounding tissue, and the cutting depth and thickness can be precisely controlled during the cutting process.
- the hook tip When used during surgery, the hook tip can be inserted between the dura mater and the vertebral body (bone) to be removed. As shown in Fig. 7, the hook tip 11 forms a fulcrum against the bone 200, and the direction of the force is from the inward direction. External operation, thereby reducing the risk of accidental damage to the soft tissue 300 such as the dura mater, thereby avoiding irreversible permanent damage to the spinal cord tissue, reducing the risk of surgery and reducing the difficulty of operation, especially for the whole The bone is removed from the block and the removed bone can be reset.
- Figure 8 shows the bone 200 being pushed from right to left with a hook-shaped ultrasonic bone cutter bit 100. Since the hook tip 11 is a fulcrum at this time and the force is from left to right, even if detachment occurs, the ultrasonic bone cutter head 100 It will also go outwards to avoid harming soft tissue 300.
- the present invention also provides an ultrasonic osteotome comprising the ultrasonic bone cutter head as described above, which can be cut with a hook tip, has high efficiency and short operation time, thereby reducing medical personnel's Labor intensity, accurate positioning when cutting, no slipping, can improve the success rate of surgery.
- the ultrasonic bone knife design fine according to the embodiment of the present invention The compact size allows precise control of the amount and shape of the bone and reduces the amount of bone loss during surgery.
- the ultrasonic osteotome according to the embodiment of the present invention has a hemostatic coagulation effect during the osteotomy, and reduces the amount of intraoperative blood loss.
- the ultrasonic bone cutter head according to the embodiment of the present invention has low processing difficulty and low production cost.
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Abstract
An ultrasonic bone cutter blade head (100) and an ultrasonic bone cutter having said blade head. The ultrasonic bone cutter blade head comprises: a blade rod (2) and a blade head end part (1), one end of the blade head end part (1) being connected to the blade rod (2), the blade head end part (1) forming a hook shape and comprising a hook tip (11), a hook handle (13), and a hook-shaped connecting part (12) being connected between the hook tip (11) and the hook handle (13), the hook handle (13) being connected to the blade rod (2), and the inner side edge and the outer side edge of the hook-shaped connecting part (12) are respectively toothed.
Description
本发明涉及医疗器械技术领域,尤其涉及一种改进的超声骨刀刀头和具有其的超声骨刀。The present invention relates to the field of medical device technology, and in particular to an improved ultrasonic bone cutter head and an ultrasonic bone knife having the same.
在骨科手术中,经常使用超声骨刀对骨头进行切割、磨削、刨削、刮削或者任意整形。图1A示出了传统的超声骨刀刀头100’的典型结构,该超声骨刀刀头100’多齿,有较宽的刀尖部分,且刀尖部分多不是有效主要切割部位,如图1B中所示。In orthopedic surgery, the bone is often cut, ground, planed, scraped, or arbitrarily shaped using an ultrasonic bone knife. 1A shows a typical structure of a conventional ultrasonic bone cutter head 100' which has a multi-toothed shape with a wide tip portion and a large portion of the cutting edge portion which is not an effective main cutting portion, as shown in the figure. Shown in 1B.
但是,这种超声骨刀刀头100’存在如下问题。如图2A中所示,当用该超声骨刀刀头100’对骨头200’朝向骨组织用力,如图2A中F1所示。当需要进行切割时,该超声骨刀刀头100’需要垂直向下朝向骨组织用力,这不仅会导致切割速度慢、效率低下,而且容易导致带多齿的刀头在操作过程中断裂。如图2B中的F2所示。但是,这在手术的过程中,容易导致意外***到脊髓等软组织300’,造成对被手术者不可恢复的损伤。此外,该超声骨刀刀头100’的形状复杂,加工难度高,生产成本高。However, such an ultrasonic bone cutter head 100' has the following problems. As shown in Fig. 2A, when the ultrasonic bone cutter head 100' is used, the bone 200' is biased toward the bone tissue as shown by F1 in Fig. 2A. When cutting is required, the ultrasonic bone cutter head 100' requires a force directed downwardly toward the bone tissue, which not only results in slow cutting speed, inefficiency, but also tends to cause the multi-toothed cutter head to break during operation. As shown by F2 in Fig. 2B. However, this may cause accidental insertion into the soft tissue 300' such as the spinal cord during the operation, resulting in irreparable damage to the operator. In addition, the ultrasonic bone cutter head 100' has a complicated shape, is difficult to process, and has high production cost.
发明内容Summary of the invention
本发明旨在至少解决现有技术中存在的技术问题之一。The present invention aims to solve at least one of the technical problems existing in the prior art.
为此,本发明需要提供一种超声骨刀刀头,所述超声骨刀刀头不仅使用效率高、而且切割速度快,以降低手术时间。To this end, the present invention needs to provide an ultrasonic bone cutter head that not only uses high efficiency but also has a high cutting speed to reduce the operation time.
进一步地,本发明需要提供一种超声骨刀刀头,所述,切割时定位准确,从而提高手术成功率。Further, the present invention needs to provide an ultrasonic bone cutter head, which is accurate in positioning when cutting, thereby improving the success rate of the operation.
此外,本发明还需要提供一种包括如上所述的超声骨刀刀头的超声骨刀。Furthermore, the present invention also needs to provide an ultrasonic osteotome comprising an ultrasonic bone cutter head as described above.
根据本发明的实施例的超声骨刀刀头包括:刀杆;以及刀头端部,所述刀头端部与刀杆相连,且所述刀头端部成钩形且包括钩尖、钩柄和连接在所述钩尖和所述钩柄之间的钩形连接部,其中所述钩柄与所述刀杆相连,且所述钩形连接部的内侧边缘和外侧边缘分别为齿状。An ultrasonic bone cutter head according to an embodiment of the present invention includes: a cutter bar; and a cutter head end, the cutter head end being coupled to the cutter bar, and the cutter head end being hook-shaped and including a hook tip and a hook a handle and a hook-shaped connecting portion connected between the hook tip and the hook handle, wherein the hook handle is connected to the cutter bar, and an inner edge and an outer edge of the hook-shaped connecting portion are respectively toothed .
在根据本发明实施例的超声骨刀刀头中,由于可以用钩尖来进行切割,效率高且手术时间短,从而降低了医护人员的劳动强度。此外,切割时定位准确,不打滑,能够提高手术成功率。此外根据本发明实施例的超声骨刀刀头设计精致小巧,可精确控制对骨头的切削量以及形状,降低术中的切骨损失量。此外,利用根据本发明实施例的超声骨刀刀头在
切骨过程中有止血凝血效果,降低术中出血量。进一步地,根据本发明实施例的超声骨刀刀头加工难度小,生产成本低。同时由于不仅可以使用齿状的内侧边缘进行切磨,还可以使用齿状的外侧边缘进行切磨,提高了超声骨刀刀头的使用便利性。In the ultrasonic bone cutter head according to the embodiment of the present invention, since the cutting can be performed with the hook tip, the efficiency is high and the operation time is short, thereby reducing the labor intensity of the medical staff. In addition, accurate positioning during cutting, without slipping, can improve the success rate of surgery. In addition, the ultrasonic bone cutter head according to the embodiment of the invention is exquisitely designed, can accurately control the cutting amount and shape of the bone, and reduce the amount of bone loss during the operation. Further, with an ultrasonic bone cutter head according to an embodiment of the present invention
There is a hemostatic coagulation effect during the osteotomy, which reduces the amount of intraoperative blood loss. Further, the ultrasonic bone cutter head according to the embodiment of the present invention has low processing difficulty and low production cost. At the same time, since not only the inner edge of the toothed shape can be used for cutting, but also the outer edge of the toothed shape can be used for cutting, the use convenience of the ultrasonic bone cutter head is improved.
另外,根据本发明的超声骨刀刀头还具有如下附加技术特征:In addition, the ultrasonic bone cutter head according to the present invention has the following additional technical features:
根据本发明的一个实施例,所述刀头端部被构造成扁平钩形。According to an embodiment of the invention, the tip end is configured as a flat hook.
根据本发明的一个实施例,所述钩柄的横截面自所述钩形连接部朝向刀杆的方向逐渐变大。According to an embodiment of the invention, the cross section of the stalk gradually becomes larger from the hook-shaped connecting portion toward the arbor.
根据本发明的一个实施例,所述钩尖的横截面钩谷的另一端连接钩尖的宽端。According to an embodiment of the invention, the other end of the cross-sectional hook valley of the hook tip is connected to the wide end of the hook tip.
根据本发明的一个实施例,所述超声骨刀刀头还包括刀身,所述刀身与所述刀杆相连且所述刀杆和所述刀身的连接处为圆弧过渡,所述刀身上形成有扳手位。According to an embodiment of the present invention, the ultrasonic bone cutter head further includes a blade body, the blade body is connected to the knife bar, and a joint of the blade bar and the blade body is a circular arc transition, and the blade body is formed There are wrenches.
根据本发明的一个实施例,所述刀杆与所述刀头端部一体形成。According to an embodiment of the invention, the shank is integrally formed with the tip end.
根据本发明的一个实施例,所述钩尖、所述钩柄和所述钩形连接部一体形成。According to an embodiment of the invention, the hook tip, the hook handle and the hook-shaped connecting portion are integrally formed.
根据本发明的一个实施例,所述钩形连接部的内侧上所形成的齿中相邻的齿间距自钩尖朝向所述钩柄逐渐变大。According to an embodiment of the invention, the adjacent tooth pitches of the teeth formed on the inner side of the hook-shaped connecting portion gradually become larger from the hook tip toward the hook shank.
根据本发明的第二方面,提供了一种钩形超声骨刀刀头,包括刀杆和头端,头端的一端与刀杆的一端连接,头端为钩形,钩形包括钩尖、钩谷和钩柄,钩谷边缘为齿状。According to a second aspect of the present invention, a hook-shaped ultrasonic bone cutter head is provided, comprising a cutter rod and a head end, one end of the head end being connected to one end of the cutter rod, the head end being hook-shaped, and the hook shape including a hook tip and a hook Valley and stalk, the edge of the hook is toothed.
根据本发明的第三方面,进一步提供了一种包括如上所述的超声骨刀刀头的超声骨刀。According to a third aspect of the invention, there is further provided an ultrasonic osteotome comprising an ultrasonic bone cutter head as described above.
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from
图1A是现有技术中超声骨刀刀头的结构示意图。1A is a schematic view showing the structure of an ultrasonic bone cutter head in the prior art.
图1B为图1A中部分A的局部放大结构示意图。1B is a partially enlarged schematic view showing a portion A of FIG. 1A.
图2A、2B显示了现有技术的超声骨刀刀头的操作示意图。2A, 2B show schematic views of the operation of a prior art ultrasonic bone cutter bit.
图3是本发明的一个实施例的超声骨刀刀头的立体结构示意图。3 is a perspective view showing the structure of an ultrasonic bone cutter head according to an embodiment of the present invention.
图4是本发明的一个实施例的超声骨刀刀头的主视图。4 is a front elevational view of an ultrasonic bone cutter bit of one embodiment of the present invention.
图5是本发明的一个实施例的超声骨刀刀头的俯视图。Figure 5 is a top plan view of an ultrasonic bone cutter head of one embodiment of the present invention.
图6是图4中的部分B的局部放大结构示意图。Fig. 6 is a partially enlarged schematic view showing a portion B of Fig. 4.
图7是根据本发明的一个实施例的超声骨刀刀头的使用状态示意图。Figure 7 is a schematic illustration of the state of use of an ultrasonic bone cutter bit in accordance with one embodiment of the present invention.
图8是根据本发明的一个实施例的超声骨刀刀头的另一使用状态示意图。Figure 8 is a schematic illustration of another state of use of an ultrasonic bone cutter bit in accordance with one embodiment of the present invention.
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考
附图描述的实施例是示例性的,仅用于解释本发明,而不能理解为对本发明的限制。The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The following reference
The embodiments described in the drawings are intended to be illustrative of the invention and are not to be construed as limiting.
在本发明的描述中,需要理解的是,术语“上”、“下”“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中,除非另有说明,“多个”的含义是两个或两个以上。In the description of the present invention, it is to be understood that the orientations or positions of the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outside", etc. are understood. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplification of the description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise stated.
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
下面将参照附图来说明根据本发明的一个实施例的超声骨刀刀头100,其中图3是本发明的一个实施例的超声骨刀刀头100的立体结构示意图;图4是本发明的一个实施例的超声骨刀刀头100的主视图;图5是本发明的一个实施例的超声骨刀刀头的俯视图。An ultrasonic bone cutter head 100 according to an embodiment of the present invention will now be described with reference to the accompanying drawings, wherein FIG. 3 is a perspective structural view of an ultrasonic bone cutter head 100 according to an embodiment of the present invention; A front view of an ultrasonic bone cutter head 100 of one embodiment; and Figure 5 is a top plan view of an ultrasonic bone cutter head of one embodiment of the present invention.
经过多年的研究,发明人发现改进超声骨刀刀头100的结构形状能够显著地改进该超声骨刀刀头的使用安全性和效率。如图3中所示,根据本发明的一个实施例,该超声骨刀刀头100可以包括刀头端部1和刀杆2。刀头端部1与刀杆2相连,且刀头端部1呈钩形且包括钩尖11、钩柄13和连接在所述钩尖11和所述钩柄13之间的钩形连接部12,如图3-6中所示。After years of research, the inventors have found that improving the structural shape of the ultrasonic bone cutter head 100 can significantly improve the safety and efficiency of use of the ultrasonic bone cutter head. As shown in FIG. 3, the ultrasonic bone cutter head 100 can include a tip end 1 and a shank 2, in accordance with an embodiment of the present invention. The cutter head end 1 is connected to the cutter bar 2, and the cutter head end portion 1 is hook-shaped and includes a hook tip 11, a hook handle 13 and a hook-shaped connecting portion connected between the hook tip 11 and the hook handle 13. 12, as shown in Figure 3-6.
根据本发明的一个实施例,刀头端部1为扁平状的钩形,如图5中所示,该刀头端部1包括钩尖11、钩谷或者钩形连接部12和钩柄13,如图6中所示。钩柄13与刀杆2相连,且钩形连接部12的内侧边缘为齿状,且钩形连接部12的外侧边缘为齿状,即钩形连接部12的外侧边缘设有多个凹槽14,相邻的凹槽之间限定出一个齿,多个凹槽限定出多个齿以使得钩形连接部12的外侧边缘为齿状。从而在使用超声骨刀刀头100时,不仅可以使用钩形连接部12的齿状的内侧边缘对骨头进行磨切,还可以使用钩形连接部12的齿状的外侧边缘为骨头进行磨切,提高了超声骨刀刀头100的使用便利性。如图5中所示,钩柄13的横截面自钩形连接部12朝向刀杆2的方向逐渐变大,由此在操作过程中,钩柄的悬臂强度得以增强。
According to an embodiment of the invention, the tip end 1 is of a flat hook shape, as shown in Fig. 5, the tip end 1 comprises a hook tip 11, a hook or hook connection 12 and a stalk 13 , as shown in Figure 6. The shank 13 is connected to the shank 2, and the inner edge of the hook-shaped connecting portion 12 is toothed, and the outer edge of the hook-shaped connecting portion 12 is toothed, that is, the outer edge of the hook-shaped connecting portion 12 is provided with a plurality of grooves. 14. A tooth is defined between adjacent grooves, and the plurality of grooves define a plurality of teeth such that the outer edge of the hook-shaped connecting portion 12 is toothed. Therefore, when the ultrasonic bone cutter head 100 is used, not only the toothed inner edge of the hook-shaped connecting portion 12 can be used for grinding the bone, but also the toothed outer edge of the hook-shaped connecting portion 12 can be used for grinding the bone. The use convenience of the ultrasonic bone cutter head 100 is improved. As shown in Fig. 5, the cross section of the stalk 13 is gradually increased from the hook-shaped connecting portion 12 toward the shank 2, whereby the cantilever strength of the stalk is enhanced during the operation.
根据本发明的一个实施例,钩尖11的横截面沿着朝向钩形连接部12的方向逐渐变大。由此,在切割过程中,利用钩尖11来加快切割速度,且由于是钩尖的缘故,切割时定位准确,不会发生打滑现象,从而能够提高手术的成功率。According to an embodiment of the invention, the cross section of the hook tip 11 tapers in a direction toward the hook-shaped connecting portion 12. Thereby, in the cutting process, the hook tip 11 is used to speed up the cutting speed, and since it is a hook tip, the positioning is accurate at the time of cutting, and the slip phenomenon does not occur, so that the success rate of the surgery can be improved.
根据本发明的一个实施例,该超声骨刀刀头进一步包括刀身3,刀杆2连接至刀身3,刀杆2和刀身3之间通过圆弧过渡,刀身3的端部处设置有连接螺纹4。根据本发明的一个实施例,刀身3上形成有例如正六角的扳手位5,由此在装配时可以用例如扳手等工具来固定或者拧紧。在使用中,当将本具体实施方式的刀头尾部的连接螺纹4与超声换能器(未示出)连接,并用相应的扳手拧紧,再将超声换能器连接于超声主机,即可进行工作。如图4中所示,根据本发明的一个实施例,刀杆2与刀头端部1可以一体形成,从而降低制造成本。进一步地,刀头端部1、刀杆2和所述刀身3可以一体形成。According to an embodiment of the invention, the ultrasonic bone cutter head further comprises a blade body 3, the knife bar 2 is connected to the blade body 3, the knife bar 2 and the blade body 3 are transitioned by a circular arc, and the connecting end of the blade body 3 is provided with a connecting thread 4. According to an embodiment of the invention, the blade body 3 is formed with a wrench bit 5, for example a regular hexagon, whereby it can be fixed or tightened with a tool such as a wrench during assembly. In use, when the connecting thread 4 of the tip end of the embodiment is connected to an ultrasonic transducer (not shown) and tightened with a corresponding wrench, and then the ultrasonic transducer is connected to the ultrasonic host, the operation can be performed. jobs. As shown in FIG. 4, according to an embodiment of the present invention, the shank 2 and the tip end portion 1 can be integrally formed, thereby reducing manufacturing costs. Further, the tip end 1, the shank 2 and the blade 3 may be integrally formed.
如图6中所示,钩形连接部12的内侧上所形成的齿中,相邻的所述齿的齿间距D自钩尖朝向所述钩柄逐渐变大。As shown in Fig. 6, among the teeth formed on the inner side of the hook-shaped connecting portion 12, the tooth pitch D of the adjacent teeth gradually becomes larger from the hook tip toward the hook shank.
下面将参照图7-8来描述根据本发明的一个实施例的超声骨刀刀头的使用方法。A method of using an ultrasonic bone cutter bit in accordance with one embodiment of the present invention will now be described with reference to Figures 7-8.
当需要切割骨头时,操作使用该钩形的超声骨刀刀头100时,可以像钩子钩东西一样使用,或可以像镰刀一样使用,以及其它随意手法使用,钩形刀头端部1的钩尖11可以直接用来切割,钩尖11用作切割时,钩柄13起卡位作用,从而保证刀头的切割深度,保护周围的骨组织,由此可以方便地定位和操作该超声骨刀刀头100。由于所述刀头端部1被构造成扁平钩形,由此也方便使用者在使用过程中的定位。When the bone is required to be cut, when the hook-shaped ultrasonic bone cutter head 100 is used for operation, it can be used like a hook hook, or can be used like a sickle, and other random techniques, the hook of the hook end 1 The tip 11 can be directly used for cutting, and when the hook tip 11 is used for cutting, the hook handle 13 acts as a latching position, thereby ensuring the cutting depth of the cutter head and protecting the surrounding bone tissue, thereby conveniently positioning and operating the ultrasonic bone cutter. The cutter head 100. Since the tip end 1 is configured in the form of a flat hook, it is also convenient for the user to position during use.
根据本发明的一个实施例,在使用中,钩尖11也可用于卡位作用,用来抵住骨头的上沿或下沿,钩形连接部12的齿状的内侧边缘对骨头进行切割,此时有钩柄与钩尖同时卡位。用力的方向为与骨面平行或向后上方。这样在切割过程中会以钩尖11形成一个支点,并沿着这个支点进行切割。这样结构的优点在于能对周围的组织起到保护作用,且切割过程中切割深度、厚度都可精确把控。In accordance with an embodiment of the present invention, in use, the hook tip 11 can also be used for a latching action against the upper or lower edge of the bone, and the toothed inner edge of the hook-shaped connecting portion 12 cuts the bone. At this time, the hook handle and the hook tip are simultaneously locked. The direction of force is parallel to the bone surface or backward. This forms a fulcrum with the hook tip 11 during the cutting process and cuts along this fulcrum. The advantage of this structure is that it can protect the surrounding tissue, and the cutting depth and thickness can be precisely controlled during the cutting process.
如在手术中使用时,可将钩尖伸进硬脊膜与要去除的椎体(骨头)之间,如图7中所示,钩尖11抵住骨头200形成支点,用力的方向由内向外进行操作,由此就减小了对例如硬脊膜等的软组织300意外破坏损伤的危险,从而避免对脊髓组织造成不可恢复的永久性伤害降低了手术风险,减少了操作难度,尤其适用整块取骨,取下的骨头可复位。图8示出了在用钩形的超声骨刀刀头100自右向左推动骨头200,由于此时钩尖11为支点且用力为从左向右,即使出现脱离,超声骨刀刀头100也会向外,从而避免伤害软组织300。When used during surgery, the hook tip can be inserted between the dura mater and the vertebral body (bone) to be removed. As shown in Fig. 7, the hook tip 11 forms a fulcrum against the bone 200, and the direction of the force is from the inward direction. External operation, thereby reducing the risk of accidental damage to the soft tissue 300 such as the dura mater, thereby avoiding irreversible permanent damage to the spinal cord tissue, reducing the risk of surgery and reducing the difficulty of operation, especially for the whole The bone is removed from the block and the removed bone can be reset. Figure 8 shows the bone 200 being pushed from right to left with a hook-shaped ultrasonic bone cutter bit 100. Since the hook tip 11 is a fulcrum at this time and the force is from left to right, even if detachment occurs, the ultrasonic bone cutter head 100 It will also go outwards to avoid harming soft tissue 300.
进一步地,本发明还提供了一种包括如上所述的超声骨刀刀头的超声骨刀,该超声骨刀可以用钩尖来进行切割,效率高且手术时间短,从而降低了医护人员的劳动强度,切割时定位准确,不打滑,能够提高手术成功率。此外,根据本发明实施例的超声骨刀设计精
致小巧,可精确控制对骨头的切削量以及形状,降低术中的切骨损失量。此外,利用根据本发明实施例的超声骨刀在切骨过程中有止血凝血效果,降低术中出血量。进一步地,根据本发明实施例的超声骨刀刀头加工难度小,生产成本低。Further, the present invention also provides an ultrasonic osteotome comprising the ultrasonic bone cutter head as described above, which can be cut with a hook tip, has high efficiency and short operation time, thereby reducing medical personnel's Labor intensity, accurate positioning when cutting, no slipping, can improve the success rate of surgery. In addition, the ultrasonic bone knife design fine according to the embodiment of the present invention
The compact size allows precise control of the amount and shape of the bone and reduces the amount of bone loss during surgery. In addition, the ultrasonic osteotome according to the embodiment of the present invention has a hemostatic coagulation effect during the osteotomy, and reduces the amount of intraoperative blood loss. Further, the ultrasonic bone cutter head according to the embodiment of the present invention has low processing difficulty and low production cost.
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
尽管已经示出和描述了本发明的实施例,本领域的普通技术人员可以理解:在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由权利要求及其等同物限定。
While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.
Claims (10)
- 一种超声骨刀刀头,其特征在于,包括:An ultrasonic bone cutter head characterized by comprising:刀杆;以及Arbor; and刀头端部,所述刀头端部与刀杆相连,且所述刀头端部呈钩形且包括钩尖、钩柄和连接在所述钩尖和所述钩柄之间的钩形连接部,其中a cutter head end, the cutter head end being coupled to the cutter bar, and the cutter head end is hook-shaped and includes a hook tip, a hook handle, and a hook shape connected between the hook tip and the hook handle Connection, where所述钩柄与所述刀杆相连,且所述钩形连接部的内侧边缘和外侧边缘分别为齿状。The shank is connected to the arbor, and the inner edge and the outer edge of the hook-shaped connecting portion are respectively toothed.
- 根据权利要求1所述的超声骨刀刀头,其特征在于,所述刀头端部被构造成扁平钩形。The ultrasonic bone cutter head according to claim 1, wherein the tip end is configured in a flat hook shape.
- 根据权利要求2所述的超声骨刀刀头,其特征在于,所述钩柄的横截面自所述钩形连接部朝向刀杆的方向逐渐变大。The ultrasonic bone cutter head according to claim 2, wherein a cross section of the hook shank gradually becomes larger from a direction in which the hook-shaped connecting portion faces the arbor.
- 根据权利要求3所述的超声骨刀刀头,其特征在于,所述钩尖的横截面沿着朝向钩形连接部的方向逐渐变大。The ultrasonic bone cutter head according to claim 3, wherein the cross section of the hook tip gradually becomes larger in a direction toward the hook-shaped connecting portion.
- 根据权利要求1-4中任一所述的超声骨刀刀头,其特征在于,还包括刀身,所述刀身与所述刀杆相连且所述刀杆和所述刀身的连接处为圆弧过渡,所述刀身上形成有扳手位。The ultrasonic bone cutter bit according to any one of claims 1 to 4, further comprising a blade body, wherein the blade body is coupled to the blade bar and the connection between the blade bar and the blade body is an arc In the transition, a wrench position is formed on the knife body.
- 根据权利要求1所述的超声骨刀刀头,其特征在于,所述刀杆与所述刀头端部一体形成。The ultrasonic bone cutter bit of claim 1 wherein said shank is integrally formed with said tip end.
- 根据权利要求5所述的超声骨刀刀头,其特征在于,所述刀头端部、刀杆和所述刀身一体形成。The ultrasonic bone cutter head according to claim 5, wherein the cutter head end, the cutter bar and the blade body are integrally formed.
- 根据权利要求1所述的超声骨刀刀头,其特征在于,所述钩形连接部的内侧上所形成的齿中,相邻的所述齿的齿间距自钩尖朝向所述钩柄逐渐变大。The ultrasonic bone cutter bit according to claim 1, wherein among the teeth formed on the inner side of the hook-shaped connecting portion, the tooth pitch of the adjacent teeth gradually increases from the hook tip toward the hook shank Become bigger.
- 一种超声骨刀刀头,其特征在于,包括刀杆和头端,头端的一端与刀杆的一端连接,头端为钩形,钩形包括钩尖、钩谷和钩柄,钩谷边缘为齿状。An ultrasonic bone cutter head, comprising: a cutter rod and a head end, one end of the head end is connected with one end of the cutter rod, the head end is a hook shape, and the hook shape comprises a hook tip, a hook valley and a hook handle, and the hook edge It is toothed.
- 一种超声骨刀,其特征在于,包括如权利要求1-9中任一所述的超声骨刀刀头。 An ultrasonic osteotome comprising an ultrasonic bone cutter head according to any of claims 1-9.
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