WO2023098313A1 - 一种低损伤伸缩光源手术电刀 - Google Patents

一种低损伤伸缩光源手术电刀 Download PDF

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Publication number
WO2023098313A1
WO2023098313A1 PCT/CN2022/125237 CN2022125237W WO2023098313A1 WO 2023098313 A1 WO2023098313 A1 WO 2023098313A1 CN 2022125237 W CN2022125237 W CN 2022125237W WO 2023098313 A1 WO2023098313 A1 WO 2023098313A1
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sleeve
knife
conductive
electrode
light source
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PCT/CN2022/125237
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English (en)
French (fr)
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苏英
尹作凯
刘雨
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浙江舒友仪器设备股份有限公司
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Publication of WO2023098313A1 publication Critical patent/WO2023098313A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00607—Coagulation and cutting with the same instrument
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1412—Blade
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0801—Prevention of accidental cutting or pricking
    • A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A61B2090/309—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white LEDs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration
    • A61B2218/008—Aspiration for smoke evacuation

Definitions

  • the invention relates to the field of preparation of medical device attachments, in particular to a low-damage retractable light source surgical electric knife.
  • Surgical electric knife pen is a high-frequency electric knife that destroys diseased tissue through electric current. It is not caused by simply heating electrodes or knife heads. When the tissue under contact with the effective electrode or the temperature of the adjacent tissue or cell rises to denature the protein in the cell, coagulation will occur. This precise surgical effect is controlled by waveform, voltage, current, Depending on the type of tissue and the shape and size of the electrodes.
  • the surgical electrosurgical pen used in routine operations is equipped with common electrodes and does not perform smoking operations. Smoke is often produced during certain surgical operations such as cutting blood coagulation. Therefore, many existing surgical electrosurgical units are connected with smoking pipes. , based on different surgical requirements and surgical environments, it is necessary to use different types of surgical electrosurgical pencils.
  • the cutter head of the existing electrosurgical knife cannot be replaced, either a scalpel with a common electrode, or a conventional smoking electrosurgical pen, and there is no easily replaceable smoking electrosurgical knife, which affects the convenience and quickness of the operation. , and cause the waste of surgical electrosurgical knife, although the existing surgical electrosurgical knife with replaceable cutter head has been proposed, such as the surgical electrosurgical knife mentioned in the patent CN202110850528.
  • Elasticity can also improve the resistance when sliding, and fix the moved hollow electrode rod, and fix the stretched electrode, but the elasticity of the rubber ring itself cannot completely fix the electrode, and it is easy to occur during the operation.
  • the problem of electrode displacement brings great potential safety hazards to surgery. Therefore, it is necessary to propose a surgical electrosurgical knife that is convenient for replacement and that the electrode head will not be displaced after replacement.
  • the object of the present invention is to provide a low-damage retractable light source surgical electric knife to solve the problems in the background technology.
  • a low-damage retractable light source surgical electric knife comprising a first sleeve, a second sleeve with conductive function, and an electrode knife, the second sleeve is fixedly connected to the first sleeve, and the electrode knife is connected to the first sleeve.
  • a clamping structure is provided between the first sleeves, the electrode knife and the first sleeve are detachably connected through the clamping structure, and the second sleeve is provided with a conductive
  • the electrode knife penetrates through the first sleeve and is connected to the second sleeve through a conductive piece, and the electrode knife is detachably fixed on the first sleeve through a clamping structure, which is convenient for replacing different types of sleeves.
  • the second sleeve can be used as a smoking tube and as a conductive sheet, so that the electrosurgical knife does not need to install other conductive sheets, reducing the assembly steps, ensuring the stability of the power supply while smoking sex.
  • the electrode knife can be a diamond-shaped electrode knife with sharp edges and a bulge in the middle.
  • the sharp edges are more conducive to the accumulation of electric energy to the edges, reducing energy dispersion as much as possible, and reducing energy waste during work.
  • the same surgical effect can be achieved with less energy.
  • since there is no excessive energy diffusion to the surroundings, it can reduce the thermal damage to adjacent tissues during the work process, prevent accidental injury to good tissues and nerves, and be more conducive to fine surgical operations.
  • the bulge in the middle of the electrode is beneficial to maintain the overall strength of the electrode, and prevent bending and deformation due to force during the working process.
  • the clamping structure includes an annular card, an extruding spring, and an extruding block
  • the inner side wall of the first sleeve is provided with a first annular groove along the axial direction, and the annular card is arranged on the second
  • the extruding spring is arranged between the annular card and the first annular groove
  • the extruding block is arranged on the annular card and passes through the first sleeve
  • the side wall of the electrode knife extends to the outside of the first sleeve
  • the extrusion block is arranged opposite to the extrusion spring
  • the outer wall of the electrode knife is provided with a plurality of second annular grooves that cooperate with the annular card.
  • the ring card and the center of the first ring groove are on the same straight line but not at the same center, and the extrusion spring is compressed by the extrusion of the extrusion block, thereby driving the ring card to move, so that The center of the ring card is close to the center of the first annular groove.
  • the ring card is hidden in the first annular groove, so that the electrode knife can penetrate the first sleeve until the electrode knife touches the conductive member , stop pressing the extruding block, so that the extruding spring drives the ring card to return to the second ring groove, and completes the detachable connection between the electrode knife and the first sleeve.
  • the installation It is convenient and simplifies the complexity of replacing the knife head, and at the same time enables the installed electrode knife to be firmly connected with the first sleeve, preventing electrode displacement during the operation and bringing great safety hazards to the operation.
  • the electrode knife can have a certain depth adjustment function through several annular grooves, which can be applied to wounds of different depths and is more user-friendly.
  • the electrode knife includes a knife body and a third sleeve sleeved on the outer wall of the knife body, the second annular groove is opened on the outer wall of the third sleeve, the Both the third casing and the second casing are made of insulating material to ensure safety in use.
  • the conductive member includes a conductive annular retaining ring, a conductive spring, and a conductive extrusion plate
  • the conductive annular retaining ring is arranged on the inner side wall of the second sleeve
  • the conductive extrusion plate is arranged on the The second sleeve is close to the position of the first sleeve and does not contact the side wall of the second sleeve
  • the conductive spring is arranged between the conductive annular retaining ring and the conductive extrusion plate
  • the conductive annular The retaining ring, conductive spring, and conductive extruded plate are all conductive materials.
  • the conductive material can be copper material, and then anti-oxidation treatment is carried out on the surface of the copper material, which can prolong the service life.
  • Extrusion completes the contact connection between the electrode knife and the extruded plate, and completes the conductive function.
  • the electrode knife and the conductive extruded plate are connected through surface-to-surface contact, which increases the contact area, compared with the electrode knife used on the market.
  • the point-to-point contact between the head and the conductive sheet is adopted, and the stability of the power supply is higher.
  • the conductive spring when the electrode knife needs to be stretched and adjusted, the conductive spring can be squeezed, and the electrode knife and the conductive extrusion plate are always guaranteed.
  • Ventilation holes are opened on the conductive extruded plate, through the ventilation holes, the gaps of the conductive annular retaining ring, and the gaps of the conductive springs, the hollow design inside the second casing is ensured, and the second casing has the ability to conduct electricity. Function has the function of smoking simultaneously.
  • the diameter of the conductive spring is larger than the inner diameter of the conductive annular retaining ring, so as to ensure that the conductive spring is always kept between the conductive annular retaining ring and the conductive extrusion plate during the extrusion process.
  • a gap is formed between the third sleeve and the first sleeve, so that the smoking pipe can have a smoking function.
  • the handle for fixing the smoking pipe and controlling it by hand, a PCB board, and a button and an LED light arranged on the handle for clicking and manipulating the PCB board, and the LED light is set on
  • the front end of the handle is electrically connected to the PCB board, and the PCB board is connected to the smoking pipe through pogo pins.
  • the pogo pins are prior art, so we will not repeat them in this case.
  • the axis of the projected light of the LED light is parallel to the axis of the cutter head, and illuminate with the movement of the cutter head, avoiding blind spots in the field of vision, and can meet the lighting requirements of deep surgery .
  • the functions of electric cutting, electric coagulation, and lighting can be completed through buttons.
  • the handle is provided with an extruding button for extruding the extruding block.
  • the present invention detachably fixes the electrode knife on the first sleeve through a clamping structure, which facilitates the replacement of different types of electrode knife, and medical staff can use different knife heads according to the specific conditions of patients, saving costs while The convenience of replacement is ensured, and the practicality and reliability are improved.
  • the electrode is connected to the second casing with conductive function through the conductive part.
  • the second casing can be used as a smoking pipe and a conductive sheet. This makes it unnecessary to install other conductive sheets on the electrosurgical knife, reducing the steps of assembly, and ensuring the stability of power supply while smoking.
  • the present invention compresses the extrusion spring through the extrusion of the extrusion block, thereby driving the ring card to move, so that the center of the ring card is close to the center of the first ring groove.
  • the ring card is hidden in the In the first annular groove, so that the electrode knife can pass through the first sleeve until the electrode knife touches the conductive member, stop pressing the extrusion block, so that the extrusion spring drives the ring card back to snap the ring card into the second In the annular groove, the detachable connection between the electrode knife and the first sleeve is completed.
  • the installation is convenient, the complexity of replacing the knife head is simplified, and the electrode knife after installation can be firmly connected with the first sleeve.
  • the cannula is connected to prevent electrode displacement during the operation and bring great safety hazards to the operation.
  • the present invention completes the contact connection between the electrode knife and the extrusion plate through the extrusion of the electrode knife body to the conductive extrusion plate, and completes the conductive function.
  • the electrode knife and the conductive extrusion plate are connected by surface to surface.
  • the contact connection increases the contact area, which is more stable than the point-to-point contact between the electrode cutter head and the conductive sheet used on the market.
  • the present invention uses the conductive spring and the second annular groove.
  • the conductive spring can be squeezed, and the contact between the electrode knife and the conductive extrusion plate is always guaranteed, so that the electrode knife can have a certain
  • the function of adjusting the length can be applied to wounds of different depths, and the use is more humanized.
  • Fig. 1 is the disassembly schematic diagram of the electric knife with light source of the present invention
  • Fig. 2 is the overall schematic diagram of the electrosurgical knife with light source of the present invention
  • Fig. 3 is a schematic cross-sectional view of the smoking pipe of the present invention.
  • Fig. 4 is a schematic cross-sectional view after the electrode knife of the present invention is snapped into the first sleeve;
  • Fig. 5 is a longitudinal schematic diagram of the extrusion block pressing the annular card of the present invention.
  • Fig. 6 is a transverse schematic diagram of the pressing block of the present invention pressing the ring card
  • FIG. 7 is an overall schematic diagram of the first casing of the present invention.
  • Fig. 8 is a schematic diagram of the extrusion button of the present invention.
  • Fig. 9 is a schematic diagram of a conductive extruded plate of the present invention.
  • Fig. 10 is a three-dimensional schematic diagram of a rhombic electrode knife of the present invention.
  • Fig. 11 is a schematic front view of a rhombic electrode knife of the present invention.
  • a low-damage retractable light source surgical electric knife includes a first sleeve, a second sleeve with conductive function, and an electrode knife 53, and the second sleeve 52 is connected to the first sleeve.
  • the tube 51 is fixedly connected, and a clamping structure 6 is provided between the electrode knife 53 and the first sleeve 51, and the electrode knife 53 and the first sleeve 51 are detachably connected through the clamping structure 6, so
  • the second sleeve 52 is provided with a conductive member 7 near the inside of the first sleeve 51, and the electrode knife 53 penetrates through the first sleeve 1 and is connected to the second sleeve 52 through the conductive member 7,
  • the electrode knife 53 is a rhombic electrode knife 534
  • the clamping structure 6 includes an annular card 61, an extrusion spring 62, and an extrusion block 63
  • the inner wall of the first sleeve 51 is provided with a The first annular groove 64, the annular card 61 is arranged in the first said first annular groove 64, and the compression spring 62 is arranged between the annular card 61 and the first annular groove 64 , the extruding block 63 is arranged
  • the conductive member 7 includes a conductive annular retaining ring 71, a conductive spring 72, a conductive extrusion Pressing plate 73, the conductive annular retaining ring 7 is arranged on the inner side wall of the second sleeve 52, and the conductive extrusion plate 72 is arranged on the second sleeve 52 close to the first sleeve 51 and not in contact with the side wall of the second sleeve 52, the conductive spring 71 is arranged between the conductive annular retaining ring 7 and the conductive extrusion plate 72, and the conductive extrusion plate 73 is provided with several a ventilation hole 731, the diameter of the conductive spring 72 is larger than the inner diameter of the conductive ring 71, and a gap 533 is formed between the third sleeve 532 and the first sleeve 51.
  • the electrode knife 53 includes a knife body 531 and a third sleeve 532 sleeved on the outer wall of the knife body 531, and the outer wall of the third sleeve 532 is provided with the the second annular groove 65 .
  • a surgical electric knife with a light source includes a smoking pipe, and it also includes a handle 2 for fixing the smoking pipe and can be controlled by hand.
  • the handle 2 is divided into upper The shell and the lower shell are easy to assemble, the PCB board 3, the power cord 1, and the buttons 4 and LED lights 8 arranged on the handle 2 to click and control the PCB board 3, and the LED lights 8 are located on the
  • the front end of the handle 2 is electrically connected to the PCB board 3, the PCB board 3 is connected to the smoking pipe through a pogo pin 9, and the handle 2 is provided with an extrusion button that is convenient for extruding the extrusion block 63 twenty one.
  • the electrode knife 53 it is easy to install and replace the electrode knife 53, and also simplifies the complexity of replacing the knife head.
  • the installed electrode knife can be firmly connected with the first casing to prevent surgery.
  • the displacement of the electrodes in the center brings great potential safety hazards to the operation.
  • the electrode knife 53 needs to be stretched and adjusted, it is only necessary to squeeze the electrode knife 53 toward the direction of the conductive extrusion plate 73 or pull it out to the outside, so that the ring card 61 snaps into different second annular grooves 65, so that the electrode knife can have a certain depth adjustment function, can be applied to wounds of different depths, and is more user-friendly.

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Abstract

一种低损伤伸缩光源手术电刀，包括第一套管（51）、具有导电功能的第二套管（52）、电极刀（53），第二套管（52）与第一套管（51）固定连接，电极刀（53）可为菱形电极刀，该电极刀（53）与第一套管（51）之间设有卡接结构（6），该电极刀（53）与第一套管（51）通过卡接结构（6）可拆卸连接，第二套管（52）靠近第一套管（51）的内部设有导电件（7），电极刀（53）贯穿第一套管（51）通过导电件（7）与第二套管（52）接触连接，通过卡接结构（6）将电极刀（53）可拆卸的固定在第一套管（51）上，便于更换不同种类的电极刀（53），医护人员可以根据患者的具体情况使用不同的刀头，节约成本的同时保证更换的便捷性，提高实用性和可靠性将第二套管（52）即可作为吸烟管使用又可作为导电片使用，保证吸烟的同时又能保证通电的稳定性。

Description

一种低损伤伸缩光源手术电刀 技术领域
本发明涉及医疗器械附属装置的制备领域，具体涉及一种低损伤伸缩光源手术电刀。
背景技术
手术电刀笔，是通过电流来摧毁病变组织的高频电刀，并不是单纯的加热电极或刀头造成的，它是将高电流密度的高频电流聚集起来，直接摧毁处于与有效电极尖端相接触一点下的组织，当与有效电极相接触或相邻近的组织或细胞的温度上升到细胞中的蛋白质变性的时候，便产生凝血，这种精确的外科效果是由波形、电压、电流、组织的类型和电极的形状及大小来决定的。
常规手术中使用的手术电刀笔是带有普通电极的，不进行吸烟操作，在进行某些手术操作例如切割凝血的过程中往往会产烟雾，因此现有的很多手术电刀上连通有吸烟管，基于不同的手术要求和手术环境，需要使用不同种类的手术电刀笔。但是现有的手术电刀的刀头都无法进行更换，要么是带有普通电极的手术刀，要么是常规的吸烟手术电刀笔，没有可方便更换的吸烟手术电刀，从而影响手术方便快捷使用，而且造成手术电刀的浪费，现有虽然提出过可更换刀头的手术电刀，比如专利CN202110850528.8一种可更换电极刀体的手术电刀笔中提到的手术电刀利用橡胶环自身弹性还可在提高滑动时的阻力，并对移动后的中空电极杆进行固定，对伸缩后的电极进行固定，但是采用橡胶环自身的弹性，无法完全固定住电极，在手术过程中，容易发生电极移位的问题，给手术带来极大的安全隐患，因此需要提出一种便于更换方便且更换后电极头不会发生移位的手术电刀。
发明内容
本发明的目的，是为了解决背景技术中的问题，提供一种低损伤伸缩光源手术电刀。
本发明的上述技术目的是通过以下技术方案得以实现的：
一种低损伤伸缩光源手术电刀，包括第一套管、具有导电功能的第二套管、电极刀，所述第二套管与所述第一套管固定连接，所述电极刀与所述第一套管之间设有卡接结构，所述电极刀与所述第一套管通过卡接结构可拆卸连接，所述第 二套管靠近所述第一套管的内部设有导电件，所述电极刀贯穿所述第一套管通过导电件与所述第二套管接触连接，通过卡接结构将电极刀可拆卸的固定在所述第一套管上，便于更换不同种类的电极刀，医护人员可以根据患者的具体情况使用呈不同的刀头，节约成本的同时保证更换的便捷性，提高实用性和可靠性，同时电极刀通过导电件与具有导电功能的第二套管进行导通，将第二套管即可作为吸烟管使用，又可作为导电片使用，使得手术电刀无需安装其他的导电片，减少组装的步骤，保证吸烟的同时又能保证通电的稳定性。
所述电极刀可以为菱形电极刀，电极边沿锋利，中间隆起，锋利的边沿更有利于电能向边沿集聚，尽可能减少能量的分散，工作中就可以降低能量的浪费，只需施加比常规电极更少的能量就可以实现同样的手术效果，同时，由于没有过多的能量向周围扩散，则可降低工作过程中对邻近组织的热损伤，防止误伤良好的组织和神经，更有利精细手术操作和病人术后恢复，提高手术效率，电极中间隆起有利于保持电极整体的强度，防止工作过程中由于受力折弯变形。
优选地，所述卡接结构包括有环形卡片，挤压弹簧，挤压块，所述第一套管的内侧壁沿着轴向方向开设有第一环形凹槽，所述环形卡片设在第一所述环形凹槽内，所述挤压弹簧设在所述环形卡片与所述第一环形凹槽之间，所述挤压块设在所述环形卡片上且贯穿所述第一套管的侧壁延伸至第一套管的外侧，所述挤压块与所述挤压弹簧相对设置，所述电极刀的外侧壁上阵列开设有若干个与环形卡片相互配合的第二环形凹槽，所述环形卡片与所述第一环形凹槽的圆心处在同一条直线上但是不处于同一个圆心，通过挤压块的挤压，将挤压弹簧进行压缩，从而带动环形卡片移动，使得环形卡片的圆心靠近第一环形凹槽的圆心，当处于同一个圆心时，环形卡片掩藏在第一环形凹槽内，从而使得电极刀能够贯穿第一套管直到电极刀接触至到导电件时，停止按压挤压块，从而挤压弹簧带动环形卡片回位将环形卡片卡入至第二环形凹槽内，完成电极刀与第一套管之间的可拆卸连接，采用这种方式，安装便捷，简化了更换刀头的复杂程度，同时使得安装后的电极刀能够牢固的与第一套管进行连接，防止手术中发生电极移位给手术带来极大的安全隐患。
优选地，第二环形凹槽开设有若干个，通过若干个环形凹槽使得电极刀能够具备一定调节深度的功能，能够适用于不同深度的伤口，使用更加的人性化。
优选地，所述电极刀包括有刀体和套设在所述刀体外侧壁上的第三套管，所述第三套管的外侧壁上开设有所述第二环形凹槽，所述第三套管和第二套管均为绝缘材质，保证使用的安全性。
优选地，所述导电件包括有导电环形挡圈、导电弹簧、导电挤压板，所述导电环形挡圈设在所述第二套管的内侧壁上，所述导电挤压板设在所述第二套管靠近所述第一套管的位置且不与第二套管的侧壁接触，所述导电弹簧设在所述导电环形挡圈与导电挤压板之间，所述导电环形挡圈、导电弹簧、导电挤压板均为导电材料，导电材料可以为铜材料，然后在铜材料的表面进行防氧化处理，能够延长使用寿命，通过电极刀的刀体对导电挤压板的挤压完成电极刀与挤压板之间的接触连接，完成导电功能，电极刀与导电挤压板之间是通过面与面的接触连接，使得接触面积加大，比市面上采用的电极刀头与导电片之间采用点与点接触的方式，通电的稳定性更高，通过导电弹簧，当电极刀需要进行伸缩调节时，使得导电弹簧能够挤压，始终保证电极刀与导电挤压板之间的接触，同时在一些场合如果手术电刀需要频繁更换电极刀时，本案的电极刀头与第二套管的接触方式，在更换电极刀后，电极刀头的通电更加的稳定，而采用一些专利如CN202021920513.1中提到的电极刀与导电片之间采用的是点与点的接触，电极刀与导电片的接触面积小，通过摩檫力挤压，长期使用过程中容易磨损，导致接触不良，容易出现事故，因此本案的方式要优越很多，使用寿命较长。
优选地，所述导电挤压板上开设有若干个通风孔，通过通风孔，导电环形挡圈的空隙，导电弹簧的空隙，保证第二套管内部的中空设计，保证第二套管具备导电功能的同时具备吸烟的功能。
优选地，所述导电弹簧的直径大于所述导电环形挡圈的内径，保证导电弹簧在挤压过程中，保证导电弹簧挤压过程中始终保持在导电环形挡圈与导电挤压板之间。
优选地，所述第三套管与所述第一套管之间形成有间隙，使得吸烟管能够具备吸烟的功能。
优选地，还包括有用以固定所述吸烟管并可手持控制的手柄、PCB板，以及设于所述手柄上用以点按操控所述PCB板的按钮、LED灯，所述LED灯设在所述手柄的前端且与所述PCB板电连接，所述PCB板与所述吸烟管通过弹簧针进行连接，所述弹簧针是现有技术，因此不在本案进行赘述，通过弹簧针使得 PCB板始终保持与第二套管的接触，所述LED灯的投射光线的轴线与所述刀头的轴线平行，随着所述刀头的移动而照明，避免视野盲区，可以满足深度手术的照明要求，通过按钮能够完成电切、电凝、和照明的功能。
优选地，所述手柄上设有便于挤压挤压块的挤压按钮。
综上所述，本发明的有益效果：
1.本发明通过卡接结构将电极刀可拆卸的固定在所述第一套管上，便于更换不同种类的电极刀，医护人员可以根据患者的具体情况使用不同的刀头，节约成本的同时保证更换的便捷性，提高实用性和可靠性，同时电极通过导电件与具有导电功能的第二套管进行导通，将第二套管即可作为吸烟管使用，又可作为导电片使用，使得手术电刀无需安装其他的导电片，减少组装的步骤，保证吸烟的同时又能保证通电的稳定性。
2.本发明通过挤压块的挤压，将挤压弹簧进行压缩，从而带动环形卡片移动，使得环形卡片的圆心靠近第一环形凹槽的圆心，当处于同一个圆心时，环形卡片掩藏在第一环形凹槽内，从而使得电极刀能够贯穿第一套管直到电极刀接触至到导电件时，停止按压挤压块，从而挤压弹簧带动环形卡片回位将环形卡片卡入至第二环形凹槽内，完成电极刀与第一套管之间的可拆卸连接，采用这种方式，安装便捷，简化了更换刀头的复杂程度，同时使得安装后的电极刀能够牢固的与第一套管进行连接，防止手术中发生电极移位给手术带来极大的安全隐患。
3.本发明通过电极刀的刀体对导电挤压板的挤压完成电极刀与挤压板之间的接触连接，完成导电功能，电极刀与导电挤压板之间是通过面与面的接触连接，使得接触面积加大，比市面上采用的电极刀头与导电片之间采用点与点接触的方式，通电的稳定性更高。
4.本发明通过导电弹簧和第二环形凹槽，当电极刀需要进行伸缩调节时，使得导电弹簧能够挤压，始终保证电极刀与导电挤压板之间的接触，使得电极刀能够具备一定调节长度的功能，能够适用于不同深度的伤口，使用更加的人性化。
附图说明
图1是本发明带光源的手术电刀拆开示意图；
图2是本发明带光源的手术电刀整体示意图；
图3是本发明吸烟管的剖示意图；
图4是本发明电极刀卡入第一套管之后的剖示意图；
图5是本发明挤压块按压环形卡片的纵向示意图；
图6是本发明挤压块按压环形卡片的横向示意图；
图7是本发明第一套管的整体示意图；
图8是本发明挤压按钮的示意图；
图9是本发明导电挤压板的示意图；
图10是本发明菱形电极刀的立体示意图；
图11是本发明菱形电极刀的前视示意图；
附图说明：1.电源线；2.手柄；21.挤压按钮；3.PCB板；4.按钮；51.第一套管；52.第二套管；53.电极刀；531.刀头；532.第三套管；533.间隙；534.菱形电极刀；6.卡接结构；61.环形卡片；62.挤压弹簧；63.挤压块；64.第一环形凹槽；65.第二环形凹槽；7.导电件；71.导电环形挡圈；72.导电弹簧72；73.导电挤压板；731.通风孔；环形8.LED灯；9.弹簧针。
具体实施方式
以下具体实施例仅仅是对本发明的解释，其并不是对本发明的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本发明的权利要求范围内都受到专利法的保护。
下面结合附图以实施例对本发明进行详细说明。
如图1-11所示，一种低损伤伸缩光源手术电刀，包括第一套管、具有导电功能的第二套管、电极刀53，所述第二套管52与所述第一套管51固定连接，所述电极刀53与所述第一套管51之间设有卡接结构6，所述电极刀53与所述第一套管51通过卡接结构6可拆卸连接，所述第二套管52靠近所述第一套管51的内部设有导电件7，所述电极刀53贯穿所述第一套管1通过导电件7与所述第二套管52接触连接，所述电极刀53为菱形电极刀534，所述卡接结构6包括有环形卡片61，挤压弹簧62，挤压块63，所述第一套管51的内侧壁沿着轴向方向开设有第一环形凹槽64，所述环形卡片61设在第一所述第一环形凹槽64内，所述挤压弹簧62设在所述环形卡片61与所述第一环形凹槽64之间，所述挤压块63设在所述环形卡片61上且贯穿所述第一套管51的侧壁延伸至第一套管51的外侧，所述挤压块63与所述挤压弹簧62相对设置，所述电极刀53的外侧壁上阵列开设有若干个与环形卡片61相互配合的第二环形凹槽65，所述导电 件7包括有导电环形挡圈71、导电弹簧72、导电挤压板73，所述导电环形挡圈7设在所述第二套管52的内侧壁上，所述导电挤压板72设在所述所述第二套管52靠近所述第一套管51的位置且不与第二套管52的侧壁接触，所述导电弹簧71设在所述导电环形挡圈7与导电挤压板72之间，所述导电挤压板73上开设有若干个通风孔731，所述导电弹簧72的直径大于所述导电环形挡圈71的内径，所述第三套管532与所述第一套管51之间形成有间隙533。
如图3所示，所述电极刀53包有刀体531和套设在所述刀体531外侧壁上的第三套管532，所述第三套管532的外侧壁上开设有所述第二环形凹槽65。
如图1、如图2和如图8所示，一种带光源的手术电刀，包括吸烟管，其还包括有用以固定所述吸烟管并可手持控制的手柄2、手柄2分为上壳和下壳，便于组装，PCB板3，电源线1，以及设于所述手柄2上用以点按操控所述PCB板3的按钮4、LED灯8，所述LED灯8设在所述手柄2的前端且与所述PCB板3电连接，所述PCB板3与所述吸烟管通过弹簧针9进行连接，所述手柄2上设有便于挤压挤压块63的挤压按钮21。
工作原理：将吸烟管与外界的真空泵连接，通过弹簧针9将PCB板3始终与吸烟管进行接触，通过导电件7使得电极刀53始终与吸烟管接触，从而保证通电的状态，在手术时，操作人员通过按钮4可以进行照明，切割，凝合操作处理，开启真空泵，进行手术操作，产生的手术烟气，通过间隙533进入至第一套管533，之后进入至第二套管52，之后进行排出，当需要更换电极刀53时，按压手柄2上的按钮21，使得挤压块63将挤压弹簧62进行压缩，从而带动环形卡片61移动，使得环形卡片61的圆心靠近第一环形凹槽64的圆心，当处于同一个圆心时，环形卡片61掩藏在第一环形凹槽64内，从而使得电极刀53能够贯穿第一套管51直到电极刀53接触至到导电件7上的导电挤压板73，放开按钮21，从而挤压弹簧62带动环形卡片61回位，将环形卡片61卡入至第二环形凹槽65内，完成电极刀53与第一套管51之间的可拆卸连接，采用这种方式，安装便捷，便于更换电极刀53，同时也简化了更换刀头的复杂程度，同时使得安装后的电极刀能够牢固的与第一套管进行连接，防止手术中发生电极移位给手术带来极大的安全隐患，当电极刀53需要伸缩调节时，只需要将电极刀53向导电挤压板73的方向挤压或者向外侧进行拔出，使得环形卡片61卡入不同的第二环形凹槽65，使得电极刀能够具备一定调节深度的功能，能够适用于不同深度 的伤口，使用更加的人性化。

Claims (10)

  1. 一种低损伤伸缩光源手术电刀，其特征在于，包括第一套管(51)、具有导电功能的第二套管(52)、电极刀(53)，所述第二套管(52)与所述第一套管(51)固定连接，所述电极刀(53)与所述第一套管(51)之间设有卡接结构(6)，所述电极刀(53)与所述第一套管(51)通过卡接结构(6)可拆卸连接，所述第二套管(52)靠近所述第一套管(51)的内部设有导电件(7)，所述电极刀(53)贯穿所述第一套管(1)通过导电件(7)与所述第二套管(52)接触连接，所述电极刀(53)为菱形电极刀(534)。
  2. 根据权利要求1所述的一种低损伤伸缩光源手术电刀，其特征在于，所述卡接结构(6)包括有环形卡片(61)，挤压弹簧(62)，挤压块(63)，所述第一套管(51)的内侧壁沿着轴向方向开设有第一环形凹槽(64)，所述环形卡片(61)设在第一所述第一环形凹槽(64)内，所述挤压弹簧(62)设在所述环形卡片(61)与所述第一环形凹槽(64)之间，所述挤压块(63)设在所述环形卡片(61)上且贯穿所述第一套管(51)的侧壁延伸至第一套管(51)的外侧，所述挤压块(63)与所述挤压弹簧(62)相对设置。
  3. 根据权利要求2所述的一种低损伤伸缩光源手术电刀，其特征在于，所述电极刀(53)的外侧壁上阵列开设有若干个与环形卡片(61)相互配合的第二环形凹槽(65)。
  4. 根据权利要求3所述的一种低损伤伸缩光源手术电刀，其特征在于，所述电极刀(53)包有刀体(531)和套设在所述刀体(531)外侧壁上的第三套管(532)，所述第三套管(532)的外侧壁上开设有所述第二环形凹槽(65)。
  5. 根据权利要求1所述的一种低损伤伸缩光源手术电刀，其特征在于，所述导电件(7)包括有导电环形挡圈(71)、导电弹簧(72)、导电挤压板(73)，所述导电环形挡圈(71)设在所述第二套管(52)的内侧壁上，所述导电挤压板(73)设在所述第二套管(52)靠近所述第一套管(51)的位置且不与第二套管(52)的侧壁接触，所述导电弹簧(72)设在所述导电环形挡圈(71)与导电挤压板(73)之间。
  6. 根据权利要求5所述的一种低损伤伸缩光源手术电刀，其特征在于，所述导电挤压板(73)上开设有若干个通风孔(731)。
  7. 根据权利要求5所述的一种低损伤伸缩光源手术电刀，其特征在于，所述导电弹簧(71)的直径大于所述导电环形挡圈(7)的内径。
  8. 根据权利要求5所述的一种低损伤伸缩光源手术电刀，其特征在于，所述第三套管(532)与所述第一套管(51)之间形成有间隙(533)。
  9. 根据权利要求1-8任一项所述的低损伤伸缩光源手术电刀，其特征在于，还包括有用以固定所述第一套管(51)和第二套管(52)并可手持控制的手柄(2)、PCB板(3)，以及设于所述手柄(2)上用以点按操控所述PCB板(3)的按钮(4)、LED灯(8)，所述LED灯(8)设在所述手柄(2)的前端且与所述PCB板(3)电连接，所述PCB板(3)与所述第一套管(51)和第二套管(52)通过弹簧针(9)进行连接。
  10. 根据权利要求9所述的一种低损伤伸缩光源手术电刀，其特征在于，所述手柄(2)上设有便于挤压挤压块(63)的挤压按钮(21)。
PCT/CN2022/125237 2021-12-01 2022-10-14 一种低损伤伸缩光源手术电刀 WO2023098313A1 (zh)

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