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WO2018153248A1 - 一种超声刀刀头 - Google Patents

一种超声刀刀头 Download PDF

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Publication number
WO2018153248A1
WO2018153248A1 PCT/CN2018/075444 CN2018075444W WO2018153248A1 WO 2018153248 A1 WO2018153248 A1 WO 2018153248A1 CN 2018075444 W CN2018075444 W CN 2018075444W WO 2018153248 A1 WO2018153248 A1 WO 2018153248A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic
cutting
head according
ultrasonic blade
blade
Prior art date
Application number
PCT/CN2018/075444
Other languages
English (en)
French (fr)
Inventor
周一新
曹群
战松涛
Original Assignee
江苏水木天蓬科技有限公司
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 江苏水木天蓬科技有限公司 filed Critical 江苏水木天蓬科技有限公司
Priority to JP2019600124U priority Critical patent/JP3225178U/ja
Priority to DE212018000162.6U priority patent/DE212018000162U1/de
Priority to KR2020197000072U priority patent/KR200494083Y1/ko
Publication of WO2018153248A1 publication Critical patent/WO2018153248A1/zh
Priority to AU2019100929A priority patent/AU2019100929A6/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
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1644—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans using fluid other than turbine drive fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1657—Bone breaking devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/320074—Working tips with special features, e.g. extending parts blade
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/320078—Tissue manipulating surface
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320084—Irrigation sleeves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system

Definitions

  • the invention belongs to the technical field of medical instruments, and in particular relates to an ultrasonic knife head.
  • the cutting head of the ultrasonic blade is mainly a blade-shaped cutter head, as shown in Fig. 1.
  • a blade-shaped cutter head is mainly a straight rod, and such a straight-shaped blade-shaped cutter head can only be completed. In the current visual state, the operation such as side scraping cannot be performed.
  • the present invention has devised an ultrasonic blade head which is capable of performing surgical operations at a plurality of special operating positions.
  • the ultrasonic cutter head of the present invention comprises a cutter head end, a cutter bar and a blade body, wherein the cutter head end is located at one end of the cutter bar, and the cutter head end portion is gradually
  • the cylindrical shape of the shank transitions into a wedge shape or a flat plate shape, and is bent and extended along the longitudinal direction of the shank to form a multi-bending cutter head, and the end of the curved extension is a cutting end.
  • the front end surface and the left and right side surfaces of the cutting end are cut surfaces.
  • the lower surface of the tip end portion is further provided with a cutting edge in a longitudinal direction, and the foremost end and the lowermost end of the cutting edge are cutting faces.
  • the cross section of the cutting edge is a rectangular structure or an inverted triangular structure or a trapezoidal structure having an upper width and a lower width, and the foremost end of the cutting edge is gathered.
  • the cutting face is machined into a straight planar structure or a circular arc surface structure or a wedge-shaped blade-like structure or a tooth-like structure.
  • the shape of the upper and lower surfaces of the cutting end is circular or elliptical or rectangular or trapezoidal.
  • the cutter bar has a hollow structure, and at the end of the cutter head, a water injection hole is opened at a connection side with the cutter bar to directly introduce the flushing liquid into the blade. The end of the cutter head.
  • the upper surface and/or the lower surface of the cutting end is provided with a longitudinal through groove or a semi-through groove.
  • the other end of the cutter bar is connected to the blade body, and the blade bar and the blade body are smoothly connected by a slope or a circular arc surface, and the other end of the blade body passes
  • the ultrasound transducer is coupled to a particular ultrasound host.
  • the other end of the blade body is provided with a connecting thread, and the connecting thread is an in-line connecting thread or an external connecting thread; the knife body is further provided with a clamping portion .
  • the present invention has a simple structure and is easy to process.
  • the ultrasonic 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 portion), so that the front end portion of the cutter has the strongest energy output. The strongest work effect.
  • the bent design of the end 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 operation. Security.
  • a convex cutting edge is longitudinally disposed on the lower surface of the end portion of the cutter head, so that the cutting end of the ultrasonic cutter head is T-shaped, so that the ultrasonic cutter head becomes T.
  • the type of bending head can be applied to special occasions, and the cut bone cement can be cut off to make it easy to be taken out, which reduces the doctor's surgical operation intensity and improves the safety of the operation.
  • the cutting surface of the present invention can be processed into a straight plane or a circular arc surface or a wedge-shaped blade-shaped or tooth-shaped cutting surface, and can be applied to more occasions and is convenient to use.
  • the ultrasonic blade head of the present invention has a hollow structure, and a water injection hole is provided at the end of the cutter head to ensure that the perfusion liquid flows out from the rear surface of the end portion of the cutter head.
  • a vertical through groove or a semi-through groove is formed in the upper surface and/or the lower surface of the cutting end of the tip end portion, so that sufficient water injection can be performed.
  • FIG. 1 is a schematic structural view of an ultrasonic cutter head in the prior art
  • FIG. 2 is a perspective view of an ultrasonic blade head according to a first embodiment of the present invention
  • Figure 3 is a front elevational view of the ultrasonic blade head of the first embodiment of the present invention.
  • Figure 4 is a plan view of an ultrasonic blade head according to a first embodiment of the present invention.
  • Figure 5 is a plan view of an ultrasonic blade head according to a second embodiment of the present invention.
  • Figure 6 is a perspective view of an ultrasonic blade head according to a third embodiment of the present invention.
  • Figure 7 is a front elevational view of an ultrasonic blade head according to a third embodiment of the present invention.
  • Figure 8 is a right side view of the ultrasonic blade head of the third embodiment of the present invention.
  • Figure 9 is a bottom plan view of an ultrasonic blade head according to a third embodiment of the present invention.
  • Figure 10 is a perspective view of the ultrasonic cutter head of the new fourth embodiment of the present invention.
  • Figure 11 is a front elevational view of an ultrasonic blade head according to a fourth embodiment of the present invention.
  • Figure 12 is a plan view of an ultrasonic blade head according to a fourth 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 blade head according to the first embodiment of the present invention includes a tip end portion 1, a holder 2, and a blade 3.
  • one end of the cutter head end 1 is connected to one end of the cylindrical cutter bar 2, and the other end of the cutter head end portion 1 gradually transitions from a cylindrical shape to a wedge shape or a flat plate shape, and is bent and extended in the longitudinal direction of the cutter bar 2.
  • the ultrasonic blade head of the present embodiment includes two bendings to form two bent portions 13.
  • the most end of the curved extension is the cutting end 11, which is used to cut the tissue.
  • the shape of the upper and lower surfaces of the cutting end 11 is a rectangle.
  • the front end face and the left and right side faces of the cut end 11 are the cut faces 12.
  • the cutting face 12 can also be machined into a straight plane that is substantially perpendicular to the upper and lower surfaces, such as the cutting faces on the left and right sides of FIGS. 2 to 4.
  • the cutting face 12 can also be machined into a wedge-shaped blade shape to speed up the cutting speed, such as the cutting face of the front end in FIGS. 2 to 4.
  • the cutting face 12 can also be machined into a tooth shape to facilitate cutting and prevent slippage.
  • the cutting surface 12 can also be machined into a circular arc surface, which is advantageous for performing a circumferential cutting operation in a circular hole shaped wound.
  • the other end of the knife bar 2 is connected to the blade body 3, and the blade body 3 is connected to a specific ultrasound host through an ultrasonic transducer.
  • the energy generated by the ultrasonic transducer can be concentrated at the end of the cutter head (the most effective working portion), so that the front end portion of the cutter has the strongest energy. Output to achieve the strongest working results.
  • the curved design of the end of the cutter head can help doctors 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 knife bar 2 has a hollow structure, and a water injection hole 14 is opened on the connecting side of the blade end portion 1 and the tool bar 2, and the flushing liquid is directly injected into the tip end portion 1 .
  • the cutting end 11 may have a through groove or a semi-through groove in the longitudinal direction.
  • One end of the cutter bar 2 is connected to the tip end portion 1, and the other end of the cutter bar 2 is connected to the blade body 3.
  • the other end of the blade body 3 is provided with a connecting thread 31, and the connecting thread 31 may be in-line or in-line.
  • an externally connected threaded structure is employed.
  • the connecting thread 31 of the blade 3 is connected to a specific ultrasonic transducer and tightened with a corresponding wrench, and then the ultrasonic transducer is connected to a specific ultrasonic host to perform the operation.
  • the ultrasonic cutter head has a hollow structure, and a water injection hole is provided at the end of the cutter head to ensure that the perfusion liquid flows out from the rear surface of the cutter head end, and the upper end and/or the lower surface of the cut end of the cutter head end portion.
  • a vertical through-hole or semi-through-through groove is provided to fully inject water, and the entire head and the contacted tissue are completely in the cleaning and cooling of the perfusion solution in real time during the operation, thereby ensuring the removed tissue. Immediate discharge.
  • the visual field at the incision is clear and clean, so that the remaining tissue to be retained can be protected from damage, which further reduces the risk of surgery and improves the safety and success rate of the operation.
  • Fig. 5 is a plan view of an ultrasonic blade head according to a second embodiment of the present invention.
  • the ultrasonic blade head of this embodiment is substantially identical to the ultrasonic blade head of the first embodiment of the present invention, except that the shape of the upper and lower surfaces of the cutting end 11 of the tip end portion 1 is elliptical, and the cutting surface 12 is a circle.
  • the curved surface is more conducive to the circumferential cutting operation in the circular hole shaped wound.
  • the shape of the upper and lower surfaces of the cutting end 11 may also be a circular shape, a trapezoidal shape or the like.
  • the cutter bar 2 may also have a hollow structure, and a water injection hole 14 is opened on the connection side of the cutter head end portion 1 and the cutter bar 2, so that the flushing liquid is directly injected into the cutter head end.
  • Department 1 In order to be able to sufficiently inject water, a through groove or a semi-through groove may be longitudinally opened on the cutting end 11.
  • One end of the cutter bar 2 is connected to the tip end portion 1, and the other end of the cutter bar 2 is connected to the blade body 3.
  • the other end of the blade body 3 is provided with a connecting thread 31, and the connecting thread 31 may be in-line or in-line.
  • the hollow structure of the ultrasonic cutter head ensures that the perfusate flows out from the rear surface of the end of the cutter head.
  • the upper surface of the cutting end of the tip and/or the longitudinal through-hole or semi-through groove provided on the lower surface ensure sufficient water injection.
  • FIG. 6 to 9 show an ultrasonic blade head according to a third embodiment of the present invention.
  • 6 is a perspective view of the ultrasonic blade head of the third embodiment
  • FIG. 7 is a front view of the ultrasonic blade head of the third embodiment
  • FIG. 8 is a right side view of the ultrasonic blade head of the third embodiment
  • FIG. It is a bottom view of the ultrasonic blade head of the third embodiment.
  • the ultrasonic blade head of the third embodiment of the present invention is substantially the same as the ultrasonic blade head of the first embodiment, except that the bending direction of the tip end portion 1 is the same as that of the tip end portion 1 of the first embodiment.
  • a convex cutting edge 15 is longitudinally disposed on the lower surface of the tip end portion 1, so that the cutting end of the embodiment has a T-shaped cross section, and the ultrasonic blade head is T. Shaped bending head.
  • the cross section of the cutting edge 15 is a wide and narrow trapezoidal structure, and the foremost end and the lowermost end of the cutting edge 15 are the cutting faces 12.
  • the foremost end of the cutting edge 15 is gathered into a wedge-shaped blade structure as shown in Figs. 8 and 9.
  • the cutting face 12 at the lowermost end of the cutting edge 15 can be machined into a straight planar structure or a circular arc surface structure or a wedge-shaped blade-like structure.
  • the blade body 3 is further provided with a clamping portion 32.
  • a convex cutting edge is longitudinally disposed on a lower surface of the end portion of the cutter head, so that the cutting end of the ultrasonic cutter head is T-shaped, so that the ultrasonic cutter head is formed
  • the T-shaped bending head can be applied to special occasions, and the cut bone cement can be cut and easily taken out. This reduces the intensity of the surgeon's surgical operation and improves the safety of the operation.
  • the cutter bar 2 may also have a hollow structure, and a water injection hole is opened on the connection side of the cutter head end portion 1 and the cutter bar 2, and the flushing liquid is directly injected into the cutter head. End 1.
  • the cutting end 11 may also have a through groove or a semi-through groove in the longitudinal direction.
  • 10 to 12 show an ultrasonic blade head according to a fourth embodiment of the present invention.
  • 10 is a perspective view of the ultrasonic blade head of the fourth embodiment
  • FIG. 11 is a front view of the ultrasonic blade head of the fourth embodiment
  • FIG. 12 is a plan view of the ultrasonic blade head of the fourth embodiment.
  • the ultrasonic blade head of the fourth embodiment of the present invention is substantially similar to the ultrasonic blade head of the first embodiment, except that the cutting faces 12 on the left and right sides of the cutting end 11 are processed into a toothed structure on the blade body 3.
  • a grip portion 32 is also provided.
  • the ultrasonic blade head of the fourth embodiment of the present invention since the cutting faces on the left and right sides of the cutting end are processed into a toothed structure, the energy generated by the ultrasonic transducer can be concentrated at the cutting end 11 of the end of the tip.
  • the tooth tip of the toothed structure (the most effective working part) allows the front end of the tool to have the strongest energy output for the strongest working effect.
  • the bending design of the end of the cutter head of the invention 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.
  • a convex cutting edge is longitudinally disposed on the lower surface of the end portion of the cutter head, so that the cutting end of the ultrasonic cutter head has a T-shaped structure, so that the ultrasonic cutter head is a T-shaped bending cutter head, which can It is suitable for special occasions. It can cut the whole ring-shaped bone cement which is cut and make it easy to be taken out, which reduces the doctor's surgical operation intensity and improves the safety of the operation.
  • the cutting faces in the present invention can be respectively processed into a straight plane or a circular arc surface or a wedge-shaped blade-shaped or tooth-shaped structure, which can be applied to more occasions and is convenient to use.

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Abstract

一种超声刀刀头，包括刀头端部（1）、刀杆（2）和刀身（3），其中，刀头端部（1）位于刀杆（2）一端，刀头端部（1）逐渐由刀杆（2）的柱形过渡到楔形或扁平片形，并沿刀杆（2）纵向方向弯曲延伸以形成多折弯刀头，弯曲延伸的最终端为切割端（11）。超声刀刀头结构简单、易于加工、使用方便、安全性高，能够完成多种特殊操作位置的手术操作。

Description

一种超声刀刀头 技术领域
本发明属于医疗器械技术领域，具体涉及一种超声刀刀头。
背景技术
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，在实施手术时，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、刮疗、夹持等操作。在外科手术中，经常使用超声刀对软组织、硬组织以及类人体组织进行切割和整形。目前的超声刀的切割刀头以片形刀头为主，如图1所示，而且，目前这类片形刀头多是以直杆为主，这类直杆片形刀头只能完成当前可视状态下的操作，不能完成如侧面刮除等手术操作。
发明内容
为了解决上述存在的技术问题，本发明设计了一种超声刀刀头，该刀头能够完成多种特殊操作位置的手术操作。
为了解决上述存在的技术问题，本发明的超声刀刀头，包括刀头端部、刀杆和刀身，其中，所述刀头端部位于所述刀杆一端，所述刀头端部逐渐由所述刀杆的柱形过渡到楔形或扁平片形，并沿所述刀杆纵向方向弯曲延伸以形成多折弯刀头，弯曲延伸的最终端为切割端。
本发明的超声刀刀头中，优选为，所述切割端的前端面和左右两侧面是切割面。
本发明的超声刀刀头中，优选为，所述刀头端部的下表面上还沿纵向设置有切割刃，所述切割刃的最前端和最下端是切割面。
本发明的超声刀刀头中，优选为，所述切割刃的横截面是矩形结构或倒三角结构或上宽下窄的梯形结构，所述切割刃的最前端收拢。
本发明的超声刀刀头中，优选为，所述切割面加工成直平面结构或圆弧面结构或楔形刀刃状结构或齿状结构。
本发明的超声刀刀头中，优选为，所述切割端上下表面的形状是圆形或椭圆形或矩形或梯形。
本发明的超声刀刀头中，优选为，所述刀杆为中空结构，在所述刀头端部，与所述刀杆的连接侧开有注水孔，以将冲洗液直接引注到所述刀头端部。
本发明的超声刀刀头中，优选为，所述切割端的上表面和/或下表面上开有纵向的通透槽或者半通透槽。
本发明的超声刀刀头中，优选为，所述刀杆另一端和所述刀身连接，所述刀杆和所述刀身之间通过斜面或圆弧面平滑过渡连接，所述刀身另一端通过超声换能器与特定的超声主机连接。
本发明的超声刀刀头中，优选为，所述刀身的另一端设置有连接螺纹，所述连接螺纹为内嵌式连接螺纹或外嵌式连接螺纹；所述刀身上还设置有夹持部。
该超声刀刀头具有以下有益效果：
(1)本发明结构简单、易于加工。
(2)本发明中的超声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。
(3)本发明的超声刀刀头中，刀头端部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。
(4)本发明的超声刀刀头中，在刀头端部的下表面上纵向设置有凸起的切割刃，使得超声刀刀头的切割端成T型，使得该超声刀刀头成T型折弯刀头，能适用于特殊场合，能将切割下来的骨水泥切断使其容易被取出，减轻了医生的手术操作强度，提高了手术的安全性。
(5)本发明中的切割面可以加工直平面或圆弧面或楔形刀刃状或齿状切割面，可适用于更多的场合中，使用方便。
(6)本发明的超声刀刀头为中空结构，刀头端部上设有注水孔，可 确保灌注液由刀头端部的后部表面流出。在刀头端部的切割端上表面和/或下表面上开有纵向的通透槽或半通透槽，从而能够充分注水。手术时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，从而能够确保被切除的组织即时排出，切口处视野清晰洁净，且能够保护剩余的需要保留的组织不被损伤，这样就使得手术风险进一步降低，手术安全性、成功率得到进一步提高。
附图说明
图1为现有技术中超声刀刀头的结构示意图；
图2为本发明第一实施方式的超声刀刀头的立体示意图；
图3为本发明第一实施方式的超声刀刀头的主视图；
图4为本发明第一实施方式的超声刀刀头的俯视图；
图5为本发明第二实施方式的超声刀刀头的俯视图；
图6为本发明第三实施方式的超声刀刀头的立体示意图；
图7为本发明第三实施方式的超声刀刀头的主视图；
图8为本发明第三实施方式的超声刀刀头的右视图；
图9为本发明第三实施方式的超声刀刀头的仰视图；
图10为本实用新第四实施方式的型超声刀刀头的立体示意图；
图11为本发明第四实施方式的超声刀刀头的主视图；
图12为本发明第四实施方式超声刀刀头的俯视图。
图中：
1～刀头端部；11～切割端；12～切割面；13～弯曲部；14～注水孔；15～切割刃；2～刀杆；3～刀身；31～连接螺纹；32～夹持部。
具体实施方式
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。
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。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
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。
下面通过具体的实施方式子并结合附图对本发明做进一步的详细描述。
图2至图4示出了本发明第一实施方式的超声刀刀头。图2为第一实施方式的超声刀刀头的立体示意图，图3为第一实施方式的超声刀刀头的主视图，图4为第一实施方式的超声刀刀头的俯视图。如图2～图4所示，本发明第一实施方式的超声刀刀头包括刀头端部1、刀杆2和刀身3。其中，刀头端部1的一端与柱形的刀杆2的一端连接，刀头端部1的另一端逐渐由柱形过渡到楔形或扁平片形，并沿刀杆2纵向方向弯曲延伸。如图2和图3所示，本实施方式的超声刀刀头包括两次弯曲从而形成两个弯曲部13。弯曲延伸的最终端为切割端11，切割端11用以将组织切割去除。本实施方式的超声刀刀头中，切割端11的上下表面的形状为矩形。切割端11的前端面和左右两侧面是切割面12。切割面12也可以加工成与上下表面大致垂直的直平面，如图2至图4中左右两侧的切割面。切割面12也可以加工成楔形刀刃状，以加快切割速度，如图2至图4中的前端的切割面。切割面12也可以加工成齿状以更加利于切割，防止打滑。切割面12也可以加工成圆弧面，这样更利于在圆孔形创口中进行圆周式切割操作。刀杆2的另一端和刀身3连接，刀身3通过超声换能器与特定的超声主机连接。根据本发明第一实施方式中的超声刀刀头，能够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。另外，刀头端部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。
本发明第一实施方式的超声刀刀头中，刀杆2为中空结构，在刀头端部1与刀杆2的连接侧开设有注水孔14，将冲洗液直接注到刀头端部1。为了能够充分注水，切割端11上可以纵向开有通透槽或者半通透槽。刀杆2一端连接刀头端部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31，连接螺纹31可以是为内嵌式，也可以是外嵌式。本实施方式中采用了外嵌式连接螺纹结构。在进行手术操作时，将刀身3尾部的连接螺纹31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。如上所述，超声刀刀头为中空结构，刀头端部上有注水孔，可确保灌注液由刀头端部的后部表面流出，刀头端部的切割端上表面和/或下表面上开有纵向的通透槽或半通透槽，能够充分注水，手术时使整个刀头头部和接触到的组织实时的完全处于灌注液的清洗和冷却中，从而能够确保被切除的组织即时排出。切口处视野清晰洁净，从而能够保护剩余的需要保留的组织不被损伤，这样就使手术风险进一步降低，手术安全性、成功率得到提高。
图5是本发明第二实施方式的超声刀刀头的俯视图。该实施方式的超声刀刀头与本发明第一实施方式的超声刀刀头基本一致，不同之处在于刀头端部1的切割端11的上下表面的形状是椭圆形，切割面12为圆弧面，这样更利于在圆孔形创口中进行圆周式切割操作。当然，切割端11的上下表面形状也可以是圆形、梯形等形状。同样，本实施方式的超声刀刀头中，刀杆2也可以为中空结构，在刀头端部1与刀杆2的连接侧开设有注水孔14，便于将冲洗液直接注到刀头端部1。为了能够充分注水，切割端11上可以纵向开设有通透槽或者半通透槽。刀杆2一端连接刀头端部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31，连接螺纹31可以是为内嵌式，也可以是外嵌式。同样，中空结构的超声刀刀头可确保灌注液由刀头端部的后部表面流出。刀头端部的切割端上表面和/或下表 面上开设的纵向的通透槽或半通透槽，能够保证充分注水。由此，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，确保被切除的组织即时排出，切口处视野清晰洁净，且能够保护剩余的需要保留的组织不被损伤，从而能够降低手术风险。
图6至图9示出了本发明第三实施方式的超声刀刀头。图6是第三实施方式的超声刀刀头的立体示意图，图7是第三实施方式的超声刀刀头的主视图，图8是第三实施方式的超声刀刀头的右视图，图9是第三实施方式的超声刀刀头的仰视图。本发明第三实施方式的超声刀刀头与第一实施方式的超声刀刀头基本相同，区别之处在于，刀头端部1的弯折方向与第一实施方式中刀头端部1的弯折方向相反，并且本实施方式中在刀头端部1的下表面上纵向设置有凸起的切割刃15，使得本实施方式中的切割端的截面呈T形，该超声刀刀头呈T形折弯刀头。切割刃15的横截面是上宽下窄的梯形结构，切割刃15的最前端和最下端是切割面12。切割刃15的最前端收拢成楔形刃状结构，如图8和图9所示。切割刃15最下端的切割面12可加工成直平面结构或圆弧面结构或楔形刀刃状结构。本实施方式中刀身3上还设置有夹持部32。本发明第三实施方式的超声刀刀头中，在刀头端部的下表面上纵向设置有凸起的切割刃，使得超声刀刀头的切割端成T型，使得该超声刀刀头成T型折弯刀头，从而能够适用于特殊场合，能够将切割下来的骨水泥切断，而使其容易地被取出。由此减轻了医生的手术操作强度，提高了手术的安全性。
另外，本发明第三实施方式的超声刀刀头中，刀杆2也可以为中空结构，在刀头端部1与刀杆2的连接侧开设有注水孔，将冲洗液直接注到刀头端部1。为了能够充分注水，切割端11上也可以纵向开有通透槽或者半通透槽。由此，能够充分注水，手术时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，确保被切除的组织即时排出，切口处视野清晰洁净，且能够保护剩余的需要保留的组织不被损伤，从而能够降低手术风险。
图10至图12示出了本发明第四实施方式的超声刀刀头。图10为第四实施方式的超声刀刀头的立体示意图，图11为第四实施方式的超声刀刀头的主视图，图12为第四实施方式的超声刀刀头的俯视图。本发明第 四实施方式的超声刀刀头与第一实施方式的超声刀刀头基本相似，不同之处在于，切割端11左右两侧的切割面12被加工成了齿状结构，刀身3上还设置有夹持部32。本发明第四实施方式的超声刀刀头由于将切割端左右两侧的切割面加工成了齿状结构，因此能够将超声换能器所产生的能量全部汇聚于刀头端部的切割端11的齿状结构的齿尖部位(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。
综上所述，本发明中刀头端部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。本发明中在刀头端部的下表面上纵向的设置有凸起的切割刃，使得超声刀刀头的切割端成T型结构，使得该超声刀刀头成T型折弯刀头，能适用于特殊场合，能将切割下来的整圈状骨水泥切断使其容易被取出，减轻了医生的手术操作强度，提高了手术的安全性。另外，本发明中的切割面可以分别加工成直平面或圆弧面或楔形刀刃状或齿状结构，可适用于更多的场合中，使用方便。
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。

Claims (10)

  1. 一种超声刀刀头，包括刀头端部、刀杆和刀身，其特征在于，
    所述刀头端部位于所述刀杆一端，所述刀头端部逐渐由所述刀杆的柱形过渡为楔形或扁平片形，并沿所述刀杆纵向方向弯曲延伸以形成多折弯刀头，弯曲延伸的最终端为切割端。
  2. 根据权利要求1所述的超声刀刀头，其特征在于，
    所述切割端的前端面和左右两侧面是切割面。
  3. 根据权利要求2所述的超声刀刀头，其特征在于，
    所述刀头端部的下表面上还纵向设置有切割刃，所述切割刃的最前端和最下端是切割面。
  4. 根据权利要求3所述的超声刀刀头，其特征在于，
    所述切割刃的横截面是矩形结构或倒三角结构或上宽下窄的梯形结构，所述切割刃的最前端收拢。
  5. 根据权利要求2、3或4所述的超声刀刀头，其特征在于，
    所述切割面加工成直平面结构或圆弧面结构或楔形刀刃状结构或齿状结构。
  6. 根据权利要求1、2、3或4所述的超声刀刀头，其特征在于，
    所述切割端上下表面的形状是圆形或椭圆形或矩形或梯形。
  7. 根据权利要求1、2、3或4所述的超声刀刀头，其特征在于，
    所述刀杆为中空结构，在所述刀头端部，与所述刀杆的连接侧开设有注水孔，以将冲洗液直接引注到所述刀头端部。
  8. 根据权利要求7所述的超声刀刀头，其特征在于，
    所述切割端的上表面和/或下表面上开设有纵向的通透槽或者半通透槽。
  9. 根据权利要求1、2、3、4或8所述的超声刀刀头，其特征在于，
    所述刀杆另一端和所述刀身连接，所述刀杆和所述刀身之间通过斜面或圆弧面平滑过渡连接，所述刀身另一端通过超声换能器与特定的超声主机连接。
  10. 根据权利要求6所述的超声刀刀头，其特征在于，所述刀身的 另一端设置有连接螺纹，所述连接螺纹为内嵌式连接螺纹或外嵌式连接螺纹，所述刀身上还设置有夹持部。
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CN207118922U (zh) * 2017-02-21 2018-03-20 江苏水木天蓬科技有限公司 一种超声刀刀头

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WO2020064768A3 (en) * 2018-09-24 2020-05-07 Bosonic Ag Device and method for perforating a dense bone layer
JP2022500192A (ja) * 2018-09-24 2022-01-04 ボソニック・アクチェンゲゼルシャフトBosonic Ag 緻密骨層を穿孔するための装置および方法
CN118236126A (zh) * 2024-05-29 2024-06-25 安速康医疗(苏州)有限公司 超声手术刀用刀杆、刀具组件及超声手术刀

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KR20190002534U (ko) 2019-10-10
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CN106691544B (zh) 2020-06-26
KR200494083Y1 (ko) 2021-07-28

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