WO2018228128A1 - Ultrasonic osteotome cutter bit - Google Patents
Ultrasonic osteotome cutter bit Download PDFInfo
- Publication number
- WO2018228128A1 WO2018228128A1 PCT/CN2018/087471 CN2018087471W WO2018228128A1 WO 2018228128 A1 WO2018228128 A1 WO 2018228128A1 CN 2018087471 W CN2018087471 W CN 2018087471W WO 2018228128 A1 WO2018228128 A1 WO 2018228128A1
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- WIPO (PCT)
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- cutter head
- cutter
- ultrasonic bone
- end portion
- bar
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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
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
Definitions
- the invention belongs to the technical field of medical instruments, and in particular relates to an ultrasonic bone cutter head.
- the blade cutter head of the ultrasonic bone cutter is a cutter head mainly for cutting.
- the sheet shape of equal thickness is used (as shown in Fig. 1), or from the blade body to the tip of the blade. Thin design, but this design will affect the effect of water injection and cooling. It is difficult to reach the surgical site during the operation. It can not fully cool the cutting surface. The cutting tip is easy to overheat during cutting. Damage to body tissues (such as the spinal cord, nerves, etc.) may cause medical malpractice.
- the present invention designs an ultrasonic bone cutter head having a cutting portion having a thickness slightly larger than a cutter bar, which helps to guide the flushing liquid to the tip end portion of the cutter head, thereby The effect of effectively controlling the tip temperature of the cutter during the operation is achieved.
- the present invention provides an ultrasonic bone cutter head including a blade body, a cutter bar, and a cutter head end, the cutter bar being connected to one end of the cutter head at one end, and the cutter bar is further One end is connected to the blade body, wherein the cutter head end portion is a flat plate-like structure of uniform thickness or a gradual thickness flat plate-shaped structure gradually formed by the shank, and the cutting portion of the end portion of the cutter head The thickness is greater than the thickness of the rear end of the tip end of the cutter head, and a toothed structure is provided at the cutting portion.
- a water guide is formed between adjacent teeth on one side or both sides of the end portion of the cutter head.
- the water guiding groove is grooved in the direction of the tooth from the end of the cutter head toward the arbor, and the rear end groove bottom of the water guiding groove is the same as the cutter end
- the rear plane is uniform.
- the front end of the tip end portion is a wedge-shaped or approximately wedge-shaped blade-like structure.
- the front end of the tip end portion is a circular arc shape or a spade structure.
- the flat sheet-shaped structure of the end portion of the cutter head is bent upward or downward with respect to the cutter bar, so that the cutter head end portion and the cutter bar The longitudinal direction forms an angle.
- the cutter bar is bent with respect to the blade body such that the cutter bar forms a certain angle with a longitudinal direction of the blade body.
- the cutter bar has a hollow structure, and a water outlet hole is opened at a joint between the end of the cutter head and the cutter bar to directly introduce the flushing liquid into the The end of the cutter head.
- a connecting thread is provided at a rear end portion of the blade body, and the connecting thread is an in-line connecting thread or an outer connecting thread.
- the cutter body is provided with a clamping portion, and the cutter head end portion and the cutter bar are integrally formed.
- the ultrasonic bone cutter head of the present invention has a simple structure and is easy to process.
- the ultrasonic bone cutter head of the present invention can concentrate the energy generated by the ultrasonic transducer at the end of the cutter head (the most effective working part), so that the front end portion of the cutter has the strongest energy output. The strongest work effect.
- the curved design of the ultrasonic bone cutter head of the present invention can help the doctor to cut a variety of hard-to-reach parts, shorten the operation time, reduce the surgical operation intensity of the doctor, and improve the safety of the operation.
- the ultrasonic bone cutter head of the present invention is a thick toothed cutter head with a water guide at the front end, which can maximize the cooling effect on the tip end of the cutter head, so that the rinse liquid is at any time during the cutting process. Both can reach the tip of the cutter head, avoiding the negative impact on the tissue due to excessive operating temperature during the cutting process, and improving the safety of the operation.
- FIG. 1 is a schematic structural view of a prior art sheet-shaped ultrasonic bone cutter head
- FIG. 2 is a plan view of an ultrasonic bone cutter head according to a first embodiment of the present invention
- FIG. 3 is a plan view of a tip end of an ultrasonic bone cutter head according to a first embodiment of the present invention
- Figure 4 is a perspective view of the end of the cutter head of the ultrasonic bone cutter head according to the first embodiment of the present invention
- Figure 5 is a plan view of an ultrasonic bone cutter head according to a second embodiment of the present invention.
- Fig. 6 is a perspective view of the end portion of the ultrasonic bone cutter head according to the second 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.
- the ultrasonic bone cutter head according to the first embodiment of the present invention includes a cutter head end portion 1, a cutter bar 2 and a blade body 3. One end of the cutter bar 2 is connected to the blade body 3, and the other end of the blade bar 2 and the blade are provided. The head end portion 1 is connected, and the tail end of the blade body 3, that is, the other end of the blade body 3 is connected to a specific ultrasonic host through an ultrasonic transducer.
- the tip end portion 1 is a flat sheet-like structure of uniform thickness or a flat-shaped sheet-shaped structure of gradual thickness formed by the gradual transition of the shank 2, and the thickness of the front end cutting portion of the tip end portion 1 is slightly larger than the end portion of the cutter head 1 The thickness of the back end.
- a toothed structure 11 is machined on the front end cutting portion of the tip end portion 1.
- a water guiding groove 12 is formed between adjacent teeth on one face of the sheet-shaped structure of the tip end portion 1. It is also possible to open the water guiding groove 12 between the adjacent teeth on both faces of the sheet-shaped structure of the tip end portion 1, and the water guiding groove 12 is directed by the cutting portion of the tip end portion 1 in the direction of the tooth.
- the direction of the shank is slotted.
- the rear end bottom of the water guide 12 coincides with the rear plane of the tip end portion 1.
- the front end of the tip end portion 1 may be a wedge-shaped or approximately wedge-shaped blade-like structure, or a circular arc-shaped structure, or a spade-shaped structure.
- 2 to 4 show a blade-like structure in which the tip end of the tip end portion 1 is approximately wedge-shaped.
- the flat sheet-like structure of the tip end portion 1 can be bent upward or downward with respect to the cutter bar 2 such that the tip end portion 1 is at an angle to the longitudinal direction of the cutter bar 2.
- the cutter bar 2 may be bent with respect to the blade body 3 such that the tip end portion 1 is at an angle to the longitudinal direction of the blade body 3.
- the bending design of the cutter head can help the doctor to cut a plurality of hard-to-reach parts, shorten the operation time, reduce the surgical operation intensity of the doctor, and improve the safety of the operation.
- the cutter bar 2 may have a hollow structure, and a water hole (not shown) may be formed in a portion of the cutter bar 2 near the tip end portion 1 to flush the liquid.
- the flushing liquid flows along the water guiding groove 12, which helps sufficient flushing liquid to flow to the cutting portion of the tip end of the cutter head, and fully cuts the cutting portion of the cutter head end portion. cool down.
- the entire head and the contacted tissue can be completely in the cleaning and cooling of the perfusate in real time, thereby effectively controlling the temperature of the tip of the tip. As a result, the risk of surgery is further reduced, and the safety and success rate of surgery are improved.
- one end of the holder 2 is connected to the end portion 1 of the cutter head, and the other end of the holder 2 is connected to the blade 3.
- the other end of the blade body 3 is provided with a connecting thread, and the connecting thread may be in-line or in-line.
- a clamping portion 31 is also provided on the blade body 3.
- the connecting thread of the tail of the blade 3 is connected to a specific ultrasonic transducer, and is tightened with a corresponding wrench, and then the ultrasonic transducer is connected to a specific ultrasonic host to operate.
- the ultrasonic bone cutter head of the present invention may be an integrally formed one piece construction.
- FIG. 5 to 6 show an ultrasonic bone cutter head according to a second embodiment of the present invention.
- 5 is a plan view of an ultrasonic bone cutter head according to a second embodiment of the present invention
- FIG. 6 is a perspective view of the end portion of the ultrasonic bone cutter head according to the second embodiment of the present invention.
- the ultrasonic bone cutter head according to the second embodiment of the present invention is basically identical to the ultrasonic bone cutter head of the first embodiment, except that the front end of the cutter head end portion 1 is a semicircular arc. structure.
- a cut portion is formed on the semicircular arc structure at the front end of the tip end portion 1 and on both sides of the tip end portion 1 that is in contact with the semicircular arc structure.
- the thickness of the cutting portion is slightly larger than the thickness of the rear portion of the tip end portion 1, and the toothed structure 11 is machined in the cutting portion.
- a water guide 12 is opened between adjacent teeth on one face of the sheet-like structure of the tip end portion 1. It is also possible to open the water guide 12 between adjacent teeth on both faces of the sheet-like structure of the tip end portion 1, respectively.
- the water guiding groove 12 is grooved in the direction of the tooth from the end of the cutter head toward the arbor, and the bottom end of the bottom end of the water guiding groove 12 coincides with the rear surface of the tip end portion 1.
- the ultrasonic bone cutter head in the second embodiment of the present invention can concentrate the energy generated by the ultrasonic transducer on the end of the cutter head (the most effective working part), so that the front end portion of the cutter has the strongest The energy output achieves the strongest working effect, and the invention is easy to process.
- the present invention provides a blade-shaped cutter head with a water guide at the front end, and the thickness of the cutting portion at the head end of the cutter head is slightly larger than the thickness of the rear portion of the cutter head end, so that the flushing liquid flows to the tip end portion of the cutter head.
- the ultrasonic bone cutter head of the invention can maximize the cooling effect on the tip end of the cutter head, so that the flushing liquid can flow to the tip end of the cutter head at any time during the cutting process, thereby avoiding the operating temperature being too high during the cutting process.
- the negative impact on the organization has improved the safety of the operation.
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Abstract
An ultrasonic osteotome cutter bit, comprising a cutter bit head (1), a cutter bar (2), and a cutter body (3). One end of the cutter bar (2) is connected to the cutter bit head (1), and the other end of the cutter bar (2) is connected to the cutter body (3); the cutter bit head (1) is of a flat sheet structure or of a gradient flat sheet structure formed by gradational transition from the cutter bar (2); the thickness of a front cutting portion of the cutter bit head (1) is greater than the thickness of a rear portion of the cutter bit head (1); and a toothed structure (11) is processed at the cutting portion of the cutter bit head (1). A water guide groove (12) is processed between the adjacent teeth on a single side or two sides of the cutter bit head (1). The ultrasonic osteotome cutter bit can greatly improve the cooling effect to the tip of the cutter bit; flushing fluid can flow onto the tip of the cutter bit at any moment in a cutting process; and negative effects on tissues due to high operating temperature are avoided in the cutting process.
Description
本发明属于医疗器械技术领域,具体涉及一种超声骨刀刀头。The invention belongs to the technical field of medical instruments, and in particular relates to an ultrasonic bone cutter head.
在现代社会中,随着医疗技术的发展,骨科手术呈现多样化趋势,相应地,实施手术时,需要针对不同的骨科病情采用不同形状的手术刀头对患处进行切割、磨削、刨削、刮削或者其他任意整形。目前的超声骨刀的片形刀头是一种以切割为主的刀头,为了增加切割速度,都是采用等厚度的片形(如图1所示),或者从刀身到刀尖由厚变薄的设计,但是这种设计会影响注水冲洗降温的效果,冲洗液在手术中很难达到手术部位,不能够对切割创口面进行充分的降温,刀尖在切割中容易温度过高,易于伤及肌体组织(如脊髓、神经等),有可能造成医疗事故。In modern society, with the development of medical technology, orthopedic surgery presents a diversified trend. Accordingly, when performing surgery, it is necessary to use different scalpel heads for different orthopedic conditions to cut, grind, plan, and Scrape or any other shaping. At present, the blade cutter head of the ultrasonic bone cutter is a cutter head mainly for cutting. In order to increase the cutting speed, the sheet shape of equal thickness is used (as shown in Fig. 1), or from the blade body to the tip of the blade. Thin design, but this design will affect the effect of water injection and cooling. It is difficult to reach the surgical site during the operation. It can not fully cool the cutting surface. The cutting tip is easy to overheat during cutting. Injury to body tissues (such as the spinal cord, nerves, etc.) may cause medical malpractice.
发明内容Summary of the invention
为了解决上述现有技术存在的问题,本发明设计了一种超声骨刀刀头,该刀头尖端切割部分的厚度略大于刀杆,有助于将冲洗液导流到刀头尖端部位,从而达到术中有效控制刀头尖端温度的效果。In order to solve the above problems in the prior art, the present invention designs an ultrasonic bone cutter head having a cutting portion having a thickness slightly larger than a cutter bar, which helps to guide the flushing liquid to the tip end portion of the cutter head, thereby The effect of effectively controlling the tip temperature of the cutter during the operation is achieved.
为了解决上述存在的技术问题,本发明提供一种超声骨刀刀头,包括刀身、刀杆、和刀头端部,所述刀杆一端连接所述刀头端部,所述刀杆的另一端连接所述刀身,其中,所述刀头端部为均匀厚度扁平状片形结构或由所述刀杆逐渐过渡形成的渐变厚度扁平状片形结构,所述刀头端部的切割部的厚度大于所述刀头端部后端的厚度,在所述切割部设有齿状结构。In order to solve the above-mentioned technical problems, the present invention provides an ultrasonic bone cutter head including a blade body, a cutter bar, and a cutter head end, the cutter bar being connected to one end of the cutter head at one end, and the cutter bar is further One end is connected to the blade body, wherein the cutter head end portion is a flat plate-like structure of uniform thickness or a gradual thickness flat plate-shaped structure gradually formed by the shank, and the cutting portion of the end portion of the cutter head The thickness is greater than the thickness of the rear end of the tip end of the cutter head, and a toothed structure is provided at the cutting portion.
本发明的超声骨刀刀头中,优选为,在所述刀头端部的单面或双面 上的相邻的齿之间加工有导水槽。In the ultrasonic bone cutter head of the present invention, it is preferable that a water guide is formed between adjacent teeth on one side or both sides of the end portion of the cutter head.
本发明的超声骨刀刀头中,优选为,所述导水槽沿着齿的方向由刀头端部向刀杆方向开槽,所述导水槽的后端槽底同所述刀头端部后部平面一致。In the ultrasonic bone cutter head of the present invention, preferably, the water guiding groove is grooved in the direction of the tooth from the end of the cutter head toward the arbor, and the rear end groove bottom of the water guiding groove is the same as the cutter end The rear plane is uniform.
本发明的超声骨刀刀头中,优选为,所述刀头端部的前端是楔形或近似楔形的刀刃状结构。In the ultrasonic bone cutter head of the present invention, preferably, the front end of the tip end portion is a wedge-shaped or approximately wedge-shaped blade-like structure.
本发明的超声骨刀刀头中,优选为,所述刀头端部的前端是圆弧形结构或者铲形结构。In the ultrasonic bone cutter head of the present invention, preferably, the front end of the tip end portion is a circular arc shape or a spade structure.
本发明的超声骨刀刀头中,优选为,所述刀头端部的扁平状片形结构相对于所述刀杆向上或向下侧弯,使所述刀头端部与所述刀杆的纵向形成一定角度。In the ultrasonic bone cutter head of the present invention, preferably, the flat sheet-shaped structure of the end portion of the cutter head is bent upward or downward with respect to the cutter bar, so that the cutter head end portion and the cutter bar The longitudinal direction forms an angle.
本发明的超声骨刀刀头中,优选为,所述刀杆相对于所述刀身侧弯,使得所述刀杆与所述刀身的纵向方向形成一定角度。In the ultrasonic bone cutter head of the present invention, preferably, the cutter bar is bent with respect to the blade body such that the cutter bar forms a certain angle with a longitudinal direction of the blade body.
本发明的超声骨刀刀头中,优选为,所述刀杆为中空结构,在所述刀头端部与所述刀杆的连接处开设有出水孔,以将冲洗液直接引注到所述刀头端部。In the ultrasonic bone cutter head of the present invention, preferably, the cutter bar has a hollow structure, and a water outlet hole is opened at a joint between the end of the cutter head and the cutter bar to directly introduce the flushing liquid into the The end of the cutter head.
本发明的超声骨刀刀头中,优选为,在所述刀身的后端部设置有连接螺纹,所述连接螺纹为内嵌式连接螺纹或外嵌式连接螺纹。In the ultrasonic bone cutter head of the present invention, preferably, a connecting thread is provided at a rear end portion of the blade body, and the connecting thread is an in-line connecting thread or an outer connecting thread.
本发明的超声骨刀刀头中,优选为,在所述刀身上设有夹持部,所述刀头端部和刀杆是一体成形的结构。In the ultrasonic bone cutter head of the present invention, preferably, the cutter body is provided with a clamping portion, and the cutter head end portion and the cutter bar are integrally formed.
本发明的超声骨刀刀头具有以下有益效果:The ultrasonic bone cutter head of the invention has the following beneficial effects:
(1)本发明的超声骨刀刀头结构简单、易于加工。(1) The ultrasonic bone cutter head of the present invention has a simple structure and is easy to process.
(2)本发明的超声骨刀刀头可以将超声换能器所产生的能量全部汇聚于刀头端部(最有效的工作部分),使刀具的刀前端部分具有最强的能量输出,达到最强的工作效果。(2) The ultrasonic bone cutter head of the present invention can concentrate the energy generated by the ultrasonic transducer at the end of the cutter head (the most effective working part), so that the front end portion of the cutter has the strongest energy output. The strongest work effect.
(3)本发明的超声骨刀刀头的折弯式设计能够帮助医生对多种难以触及的部位进行切割,缩短了手术时间,减轻了医生的手术操作强度,提高了手术的安全性。(3) The curved design of the ultrasonic bone cutter head of the present invention can help the doctor to cut a variety of hard-to-reach parts, shorten the operation time, reduce the surgical operation intensity of the doctor, and improve the safety of the operation.
(4)本发明的超声骨刀刀头是一种前端带有导水槽的厚齿片形刀头,可以最大限度地提高对刀头尖端的降温效果,使得在切割过程中在任意时刻冲洗液均能够到达刀头尖端,避免了切割过程中由于操作温度过高对组织产生的负面影响,提高了手术安全性。(4) The ultrasonic bone cutter head of the present invention is a thick toothed cutter head with a water guide at the front end, which can maximize the cooling effect on the tip end of the cutter head, so that the rinse liquid is at any time during the cutting process. Both can reach the tip of the cutter head, avoiding the negative impact on the tissue due to excessive operating temperature during the cutting process, and improving the safety of the operation.
图1为现有技术中片形超声骨刀刀头的结构示意图;1 is a schematic structural view of a prior art sheet-shaped ultrasonic bone cutter head;
图2为本发明第一实施方式的超声骨刀刀头的俯视图;2 is a plan view of an ultrasonic bone cutter head according to a first embodiment of the present invention;
图3为本发明第一实施方式的超声骨刀刀头的刀头端部的俯视图;3 is a plan view of a tip end of an ultrasonic bone cutter head according to a first embodiment of the present invention;
图4为本发明第一实施方式的超声骨刀刀头的刀头端部的立体图;Figure 4 is a perspective view of the end of the cutter head of the ultrasonic bone cutter head according to the first embodiment of the present invention;
图5为本发明第二实施方式的超声骨刀刀头的俯视图;Figure 5 is a plan view of an ultrasonic bone cutter head according to a second embodiment of the present invention;
图6为本发明第二实施方式的超声骨刀刀头的刀头端部的立体图。Fig. 6 is a perspective view of the end portion of the ultrasonic bone cutter head according to the second embodiment of the present invention.
附图标记:Reference mark:
1~刀头端部;2~刀杆;3~刀身;11~齿状结构;12~导水槽;31~夹持部。1 to the end of the cutter head; 2 to the cutter bar; 3 to the blade body; 11 to the tooth structure; 12 to the water guide; 31 to the clamping portion.
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施方式是本发明一部分实施方式,而不是全部的实施方式。基于本发明中的实施方式,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式,都属于本发明保护的范围。The technical solutions of the present invention will be described clearly and completely in conjunction with the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、 “左”、“右”、“竖直”、“水平”、“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。In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship of the indications 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 simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention.
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.
图2~图4示出了本发明第一实施方式的超声骨刀刀头。图2为本发明第一实施方式的超声骨刀刀头的俯视图,图3为本发明第一实施方式的超声骨刀刀头的刀头端部的俯视图,图4为本发明第一实施方式的超声骨刀刀头的刀头端部的立体图。如图2所示,本发明第一实施方式的超声骨刀刀头包括刀头端部1、刀杆2和刀身3,刀杆2的一端和刀身3连接,刀杆2的另一端和刀头端部1连接,刀身3的尾部即刀身3的另一端通过超声换能器与特定的超声主机连接。2 to 4 show an ultrasonic bone cutter head according to a first embodiment of the present invention. 2 is a plan view of an ultrasonic bone cutter head according to a first embodiment of the present invention, and FIG. 3 is a plan view of a cutter head end portion of the ultrasonic bone cutter head according to the first embodiment of the present invention, and FIG. 4 is a first embodiment of the present invention. A perspective view of the end of the tip of the ultrasonic bone cutter head. As shown in FIG. 2, the ultrasonic bone cutter head according to the first embodiment of the present invention includes a cutter head end portion 1, a cutter bar 2 and a blade body 3. One end of the cutter bar 2 is connected to the blade body 3, and the other end of the blade bar 2 and the blade are provided. The head end portion 1 is connected, and the tail end of the blade body 3, that is, the other end of the blade body 3 is connected to a specific ultrasonic host through an ultrasonic transducer.
刀头端部1为均匀厚度的扁平状片形结构或由刀杆2逐渐过渡形成的渐变厚度的扁平状片形结构,刀头端部1的前端切割部的厚度略大于刀头端部1的后端的厚度。在刀头端部1的前端切割部上加工有齿状结构11。在刀头端部1的片形结构的一个面上相邻齿之间开有导水槽12。也可以在刀头端部1的片形结构的两个面上,在相邻齿之间分别开有导水槽12,导水槽12沿着齿的方向,由刀头端部1的切割部向刀杆方向开槽。导水槽12的后端底部与刀头端部1的后部平面一致。刀头端部1的前端可以是楔形或近似楔形的刀刃状结构、或者圆弧形结构、或者铲形结构。图2~图4示出了刀头端部1的前端为近似楔形的刀刃状结构。The tip end portion 1 is a flat sheet-like structure of uniform thickness or a flat-shaped sheet-shaped structure of gradual thickness formed by the gradual transition of the shank 2, and the thickness of the front end cutting portion of the tip end portion 1 is slightly larger than the end portion of the cutter head 1 The thickness of the back end. A toothed structure 11 is machined on the front end cutting portion of the tip end portion 1. A water guiding groove 12 is formed between adjacent teeth on one face of the sheet-shaped structure of the tip end portion 1. It is also possible to open the water guiding groove 12 between the adjacent teeth on both faces of the sheet-shaped structure of the tip end portion 1, and the water guiding groove 12 is directed by the cutting portion of the tip end portion 1 in the direction of the tooth. The direction of the shank is slotted. The rear end bottom of the water guide 12 coincides with the rear plane of the tip end portion 1. The front end of the tip end portion 1 may be a wedge-shaped or approximately wedge-shaped blade-like structure, or a circular arc-shaped structure, or a spade-shaped structure. 2 to 4 show a blade-like structure in which the tip end of the tip end portion 1 is approximately wedge-shaped.
刀头端部1的扁平状片形结构可以相对于刀杆2向上或向下侧弯,使刀头端部1同刀杆2的纵向方向成一定角度。也可以是,刀杆2相对于刀身3侧弯,从而使刀头端部1与刀身3的纵向方向成一定角度。本发明中刀头的折弯式设计能够帮助医生对多种难以触及的部位进行切割,缩短了手术时间,减轻了医生的手术操作强度,提高了手术的安全性。The flat sheet-like structure of the tip end portion 1 can be bent upward or downward with respect to the cutter bar 2 such that the tip end portion 1 is at an angle to the longitudinal direction of the cutter bar 2. Alternatively, the cutter bar 2 may be bent with respect to the blade body 3 such that the tip end portion 1 is at an angle to the longitudinal direction of the blade body 3. In the invention, the bending design of the cutter head can help the doctor to cut a plurality of hard-to-reach parts, shorten the operation time, reduce the surgical operation intensity of the doctor, and improve the safety of the operation.
本发明第一实施方式的超声骨刀刀头中,刀杆2也可以为中空结构,并可以在刀杆2的靠近刀头端部1的部位开设出水孔(未图示),将冲洗液直接导流到刀头端部1前端的切割部,冲洗液沿着导水槽12流动,这样有助于足够的冲洗液流到刀头尖端的切割部,对刀头端部的切割部充分进行冷却。手术时,能够使整个刀头头部和接触到的组织实时地完全处于灌注液的清洗和冷却中,从而有效地对刀头尖端的温度进行控制。由此,使手术风险进一步降低,手术安全性、成功率得到提高。In the ultrasonic bone cutter head according to the first embodiment of the present invention, the cutter bar 2 may have a hollow structure, and a water hole (not shown) may be formed in a portion of the cutter bar 2 near the tip end portion 1 to flush the liquid. Directly diverting to the cutting portion at the front end of the tip end of the cutter head, the flushing liquid flows along the water guiding groove 12, which helps sufficient flushing liquid to flow to the cutting portion of the tip end of the cutter head, and fully cuts the cutting portion of the cutter head end portion. cool down. During the operation, the entire head and the contacted tissue can be completely in the cleaning and cooling of the perfusate in real time, thereby effectively controlling the temperature of the tip of the tip. As a result, the risk of surgery is further reduced, and the safety and success rate of surgery are improved.
另外,本发明第一实施方式的超声骨刀刀头中,刀杆2的一端连接刀头端部1,刀杆2的另一端连接刀身3。刀杆2和刀身3之间通过斜面或圆弧面平滑过渡。刀身3的另一端设置连接螺纹,连接螺纹可以是内嵌式,也可以是外嵌式。刀身3上还设置有夹持部31。工作时,将刀身3的尾部的连接螺纹与特定的超声换能器连接,并用相应的扳手拧紧,再将超声换能器连接于特定的超声主机,即可进行工作。本发明的超声骨刀刀头可以是一体成形的一体件结构。Further, in the ultrasonic bone cutter head according to the first embodiment of the present invention, one end of the holder 2 is connected to the end portion 1 of the cutter head, and the other end of the holder 2 is connected to the blade 3. A smooth transition between the shank 2 and the blade 3 through a bevel or a circular arc surface. The other end of the blade body 3 is provided with a connecting thread, and the connecting thread may be in-line or in-line. A clamping portion 31 is also provided on the blade body 3. In operation, the connecting thread of the tail of the blade 3 is connected to a specific ultrasonic transducer, and is tightened with a corresponding wrench, and then the ultrasonic transducer is connected to a specific ultrasonic host to operate. The ultrasonic bone cutter head of the present invention may be an integrally formed one piece construction.
图5~图6示出了本发明第二实施方式的超声骨刀刀头。图5为本发明第二实施方式的超声骨刀刀头的俯视图,图6为本发明第二实施方式的超声骨刀刀头的刀头端部的立体图。如图5、图6所示,本发明第二实施方式的超声骨刀刀头与第一实施方式的超声骨刀刀头基本一致,不同之处在于刀头端部1的前端是半圆弧结构。在刀头端部1的前端的半圆弧结构以及与半圆弧结构相接的刀头端部1的两侧,形成了切割部。切割部的厚度略大于刀头端部1后部的厚度,在切割部加工出有齿状结构 11。在刀头端部1的片形结构的一个面上的相邻齿之间开设有导水槽12。也可以分别在刀头端部1的片形结构的两个面上的相邻齿之间开设导水槽12。导水槽12沿着齿的方向,由刀头端部向刀杆方向开槽,导水槽12的后端底部与刀头端部1后部平面一致。5 to 6 show an ultrasonic bone cutter head according to a second embodiment of the present invention. 5 is a plan view of an ultrasonic bone cutter head according to a second embodiment of the present invention, and FIG. 6 is a perspective view of the end portion of the ultrasonic bone cutter head according to the second embodiment of the present invention. As shown in FIG. 5 and FIG. 6, the ultrasonic bone cutter head according to the second embodiment of the present invention is basically identical to the ultrasonic bone cutter head of the first embodiment, except that the front end of the cutter head end portion 1 is a semicircular arc. structure. A cut portion is formed on the semicircular arc structure at the front end of the tip end portion 1 and on both sides of the tip end portion 1 that is in contact with the semicircular arc structure. The thickness of the cutting portion is slightly larger than the thickness of the rear portion of the tip end portion 1, and the toothed structure 11 is machined in the cutting portion. A water guide 12 is opened between adjacent teeth on one face of the sheet-like structure of the tip end portion 1. It is also possible to open the water guide 12 between adjacent teeth on both faces of the sheet-like structure of the tip end portion 1, respectively. The water guiding groove 12 is grooved in the direction of the tooth from the end of the cutter head toward the arbor, and the bottom end of the bottom end of the water guiding groove 12 coincides with the rear surface of the tip end portion 1.
本发明第二实施方式中的超声骨刀刀头可以将超声换能器所产生的能量全部汇聚于刀头刀头端部(最有效的工作部分),使刀具的刀前端部分具有最强的能量输出,达到最强的工作效果,且本发明易于加工。The ultrasonic bone cutter head in the second embodiment of the present invention can concentrate the energy generated by the ultrasonic transducer on the end of the cutter head (the most effective working part), so that the front end portion of the cutter has the strongest The energy output achieves the strongest working effect, and the invention is easy to process.
另外,本发明提出了一种前端带有导水槽的片形刀头,刀头头端切割部分的厚度略大于刀头端部后部的厚度,这样有助于冲洗液流到刀头尖端部位,从而达到术中有效控制刀头尖端温度的效果。本发明中的超声骨刀刀头可以最大限度地提高对刀头尖端的降温效果,使得在切割过程中的任意时刻冲洗液都能够流到刀头尖端,避免了切割过程中由于操作温度过高对组织产生的负面影响,提高了手术安全性。In addition, the present invention provides a blade-shaped cutter head with a water guide at the front end, and the thickness of the cutting portion at the head end of the cutter head is slightly larger than the thickness of the rear portion of the cutter head end, so that the flushing liquid flows to the tip end portion of the cutter head. Thereby achieving the effect of effectively controlling the tip temperature of the cutter during the operation. The ultrasonic bone cutter head of the invention can maximize the cooling effect on the tip end of the cutter head, so that the flushing liquid can flow to the tip end of the cutter head at any time during the cutting process, thereby avoiding the operating temperature being too high during the cutting process. The negative impact on the organization has improved the safety of the operation.
最后应说明的是:以上各实施方式仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施方式对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施方式所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施方式技术方案的范围。It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.
Claims (10)
- 一种超声骨刀刀头,包括刀身、刀杆、和刀头端部,所述刀杆一端连接所述刀头端部,所述刀杆的另一端连接所述刀身,其特征在于,An ultrasonic bone cutter head comprising a blade body, a cutter bar, and a cutter head end, the cutter bar being connected to the cutter head end at one end, and the other end of the cutter bar being connected to the blade body, wherein所述刀头端部为均匀厚度的扁平状片形结构或由所述刀杆逐渐过渡形成的渐变厚度的扁平状片形结构,所述刀头端部的切割部的厚度大于所述刀头端部后端的厚度,在所述切割部设有齿状结构。The tip end portion is a flat sheet-like structure of uniform thickness or a flat-shaped sheet-shaped structure of gradual thickness formed by the gradual transition of the arbor, and the thickness of the cutting portion of the end portion of the cutter head is larger than the cutter head The thickness of the rear end of the end portion is provided with a toothed structure at the cutting portion.
- 根据权利要求1所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter bit according to claim 1, wherein在所述刀头端部的单面或双面上的相邻的齿之间加工有导水槽。A water guide is formed between adjacent teeth on one or both sides of the end of the cutter head.
- 根据权利要求2所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter bit according to claim 2, wherein所述导水槽沿着齿的方向由刀头端部向刀杆方向开槽,所述导水槽的后端槽底同所述刀头端部后部平面一致。The water guiding groove is grooved in the direction of the tooth from the end of the cutter head toward the arbor, and the bottom groove bottom of the water guiding groove is aligned with the rear surface of the cutter head end.
- 根据权利要求1、2或3所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter head according to claim 1, 2 or 3, wherein所述刀头端部的前端是楔形或近似楔形的刀刃状结构。The front end of the tip end is a wedge-shaped or approximately wedge-shaped blade-like structure.
- 根据权利要求1、2或3所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter head according to claim 1, 2 or 3, wherein所述刀头端部的前端是圆弧形结构或者铲形结构。The front end of the tip end portion is a circular arc structure or a spade structure.
- 根据权利要求1、2或3所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter head according to claim 1, 2 or 3, wherein所述刀头端部的扁平状片形结构相对于所述刀杆向上或向下侧弯,使所述刀头端部与所述刀杆的纵向形成一定角度。The flat sheet-like structure of the end of the cutter head is bent upward or downward with respect to the cutter bar such that the cutter head end portion forms an angle with the longitudinal direction of the cutter bar.
- 根据权利要求1、2或3所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter head according to claim 1, 2 or 3, wherein所述刀杆相对于所述刀身侧弯,使得所述刀杆与所述刀身的纵向方 向形成一定角度。The shank is laterally bent relative to the blade such that the arbor forms a certain angle with the longitudinal direction of the blade.
- 根据权利要求1、2或3所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter head according to claim 1, 2 or 3, wherein所述刀杆为中空结构,在所述刀头端部与所述刀杆的连接处开设有出水孔,以将冲洗液直接引注到所述刀头端部。The arbor is a hollow structure, and a water outlet hole is opened at a joint between the end of the cutter head and the arbor to directly direct the rinsing liquid to the end of the cutter head.
- 根据权利要求1、2或3所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter head according to claim 1, 2 or 3, wherein在所述刀身的后端部设置有连接螺纹,所述连接螺纹为内嵌式连接螺纹或外嵌式连接螺纹。A connecting thread is provided at a rear end portion of the blade body, and the connecting thread is an in-line connecting thread or an external connecting thread.
- 根据权利要求1、2或3所述的超声骨刀刀头,其特征在于,The ultrasonic bone cutter head according to claim 1, 2 or 3, wherein在所述刀身上设有夹持部,所述刀头端部和刀杆是一体成形的结构。A clamping portion is provided on the cutter body, and the cutter head end portion and the cutter bar are integrally formed.
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