WO2017166039A1 - 吸烟电刀 - Google Patents

吸烟电刀 Download PDF

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Publication number
WO2017166039A1
WO2017166039A1 PCT/CN2016/077638 CN2016077638W WO2017166039A1 WO 2017166039 A1 WO2017166039 A1 WO 2017166039A1 CN 2016077638 W CN2016077638 W CN 2016077638W WO 2017166039 A1 WO2017166039 A1 WO 2017166039A1
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WO
WIPO (PCT)
Prior art keywords
smoking
tube
electric knife
rotary
rotary bulge
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PCT/CN2016/077638
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English (en)
French (fr)
Inventor
黄海军
晁宇
王清华
尹艳辉
刘天国
Original Assignee
浙江迈德实达医疗科技有限公司
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Application filed by 浙江迈德实达医疗科技有限公司 filed Critical 浙江迈德实达医疗科技有限公司
Priority to PCT/CN2016/077638 priority Critical patent/WO2017166039A1/zh
Publication of WO2017166039A1 publication Critical patent/WO2017166039A1/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions

Definitions

  • the invention belongs to the technical field of medical device processing, in particular to a smoking electric knife.
  • Electrosurgical knives are a common surgical knives, because when surgical cutting is performed, smoke is generated, which obstructs the doctor's line of sight and affects the normal operation of the operation. Therefore, most of the current electrosurgical knives have a smoke absorbing function and are vacuum-adsorbed. The device sucks out the smoke generated by the operation to ensure the normal operation and smooth operation.
  • the Chinese invention patent with the patent application number CN 201420797732.3 and the application date: 2014-12-17 discloses a smoking electric knife, a smoking pipe connection structure, including a smoking pipe inserted in the handle of the electric knife casing, and a a locking ring groove on an outer circumferential surface of the smoking pipe, an elastic eccentric sleeve disposed in the locking ring groove, and a protruding portion disposed on the locking ring groove and the elastic eccentric sleeve;
  • the protrusion and the elastic eccentric sleeve cooperate when the smoking tube is rotated forward to a predetermined angle in the handle of the electric knife casing, so that the smoking pipe and the electric knife casing handle realize radial and axial locking Tightening, and the protruding portion and the elastic eccentric sleeve cooperate to release the smoking tube and the electric knife housing handle when the smoking tube is reversely rotated to a predetermined angle within the electric knife housing handle Radial and axial locking.
  • a smoking electric knife comprising an electric knife body, a smoking tube and a housing disposed outside the smoking tube; the electrosurgical body having a surgical portion and a connecting portion, The surgical portion protrudes from the smoking tube, and the connecting portion is coupled with the mounting portion of the smoking tube, and a rotating bulge structure is formed between the outer wall of the smoking tube and the inner wall of the housing, the rotary bulge
  • the structure includes a rotary bulge member, and when the smoking tube and the rotary bulge member are relatively rotated, a wall thickness formed by the cooperation of the smoking tube and the rotary bulge member is locally changed, thereby causing a local variation
  • the smoking tube undergoes a change in the degree of expansion relative to the housing.
  • the applicant found that although the previously produced smoking pipe is connected to the handle of the electric knife shell by means of plugging, the axial adjustment is realized, but the requirements for fabrication and processing are relatively high. If the gap is small, there will be problems that are difficult to disassemble or adjust. If the gap is large, the connection may not be firm enough. For this reason, the applicant has fixed the connection structure between the smoking pipe and the casing. Improvement, by providing a rotary bulge member radially fixed to the outer wall of the smoking pipe, the distance between the inner wall of the casing and the inner wall of the smoking pipe is when the smoking pipe can be in the shell The axial movement of the body is uniform.
  • the distance between the two changes in a local area, and the cross-sectional area of the inner wall of the casing and the cross-sectional area of the inner wall of the smoking pipe. It will not change, so the local area between the two changes, so that the smoking pipe is fixed.
  • the rotary bulge is sleeved on the smoking pipe. Because the rotary bulge is made of plastic at the time of manufacture, there is a mounting opening, which facilitates the deformation of the elastic eccentric and realizes the function of locking or loosening.
  • the rotary bulge structure further includes a ring groove formed on the outer wall of the smoking tube for arranging the rotary bulge member to accommodate and restrain the above-described rotary bulge member.
  • the rotary bulge member is an eccentric bushing structure
  • the outer wall of the rotary bulge member forms an eccentric structure, the fixing of the smoking pipe and the casing is achieved by rotating the rotary bulge member. .
  • the ring groove is an eccentric structure or a cross-sectional eccentric structure of the smoking pipe, it is necessary to rotate the smoking pipe to fix the smoking pipe and the casing.
  • the inner wall of the rotary bulge member is closely fitted with the ring groove, so that the outer wall of the smoking tube can be in close contact with the inner wall of the casing when the smoking tube is free to move axially;
  • the smoking tube causes the rotary bulge to be opened to secure the smoking tube to the housing.
  • the mounting portion is configured as a clamping type engaging structure
  • the engaging structure is constituted by a plurality of a plurality of engaging units facing outward, the engaging unit including an arc for fixing the electric knife body
  • the electric knife body further includes an insulating engaging member disposed on the connecting portion, the insulating engaging member has a hexagonal cross section, and is disposed in front of or behind the curved bayonet portion for matching the arrangement of the insulating engaging member The corners prevent the rotation of the electrosurgical body.
  • the outer periphery of the connecting portion is provided with an insulating engaging member having a hexagonal cross section, and the engaging unit further comprises a corner portion for engaging the insulating engaging member.
  • the inner wall of the housing is provided as a separate metal sleeve, and the metal sleeve acts as a conductor, and is electrically connected inwardly through the conductive piece provided with the mounting portion and the conductive inner tube connected to the conductive sheet.
  • the blade body is in electrical communication and is electrically connected outwardly through the conductive wire and the power control chip power line connected to the conductive wire.
  • the conductive sheet includes a base and at least one elastic protrusion disposed on each side of the base.
  • an elastic conductive sheet is disposed between the conductive inner tube and the electrosurgical body.
  • the electronic control chip is provided with a sealing member, and the sealing member tightly covers the electronic control chip and the power cable after being thermoplasticized.
  • the electronic control chip is provided with a sealing member, the sealing member is tightly wrapped with the electronic control chip after being thermoplastically molded, and a sealing glue is disposed between the sealing member and the power line.
  • the rotary bulge structure further comprises a radial limiting structure, consisting of a radial projection disposed on the rotary bulge and a limiting groove provided on the inner wall of the housing;
  • the rotary bulge structure further includes an axial stop structure comprised of an axial projection disposed on the rotary bulge and an arcuate groove disposed on the smoking tube. Radial bulge and limit groove The fit allows the rotary bulge to remain relatively stationary with the housing. It also makes the structure of the entire rotary bulge member simple.
  • the protruding connection is integrated; when the rotary bulge has a mounting opening, the wall thickness of the rotary bulge is gradually thickened by the radial protrusions on both sides of the mounting opening, which preferably strengthens the entire rotary bulge The structural strength increases the service life of the entire rotary bulge.
  • the first soft rubber layer that matches the electronic control chip and the second soft rubber layer that is disposed on the opposite surface of the electronic control chip are disposed outside the casing.
  • the whole technical solution is comfortable to the user and relieves hand fatigue.
  • the rotary bulge structure further comprises a secondary bulge structure formed by an axial bevel disposed on the rotary bulge and an axially inclined surface disposed on the outer wall of the smoking tube.
  • the present invention realizes that the smoking pipe in the smoking electric knife rotates naturally and the smoking pipe can be finely adjusted in the axial direction.
  • the wear between the eccentric ring groove and the elastic eccentric member is reduced, thereby prolonging the service life of the smoking pipe.
  • the arrangement of the mounting opening enables the elastic eccentric to be more easily fixed and to contribute to the structural strength of the elastic eccentric. Simplified setting of smoking passages for smoking electric knives. The entire circuit of the smoking electric knife is sealed against moisture, and the connection structure is simple and practical, and the contact is good. It also protects and massages the operator's hands.
  • Figure 1 is a perspective view of the overall structure of the present invention
  • Figure 2 is a cross-sectional view showing the entire structure of the present invention.
  • FIG. 3 is a schematic view of the electric knife body of the present invention connected to the smoking pipe connected to the electronic control chip connecting housing;
  • Figure 4 is a schematic view showing the connection of the smoking pipe of the present invention and the electrosurgical body
  • Figure 5 is a partial schematic view of a smoking pipe of the present invention.
  • Figure 6 is a schematic overall view of the rotary expansion plug of the present invention.
  • Figure 7 is a schematic view showing the overall structure of the electrosurgical body of the present invention.
  • Figure 8 is a front elevational view of the mounting portion of the present invention.
  • Figure 9 is a rear elevational view of the mounting portion of the present invention.
  • Figure 10 is a perspective view of a conductive sheet of the present invention.
  • Figure 11 is a schematic view showing the separation of the rotary bulge member of the present invention and the smoking tube;
  • Figure 1 Figure 11, 1-electro-knife body, 2-smoking tube, 3-rotating bulge, 4-shell, 5-conductive sheet, 6-conductive inner tube, 7-conductive wire, 8-electric Control chip, 21-ring groove, 22-arc groove, 23-axial back slope, 24-mount, 31-radial projection, 32-axial projection, 33-axial bevel, 41-limit Slot, 42-metal sleeve, 241-curved bayonet, 242-base unit.
  • the smoking electric knife includes an electric knife body 1, a smoking tube 2, and a housing 4 disposed outside the smoking tube 2.
  • the electronic control chip 8 is attached to the housing 4 to control the inside of the electric knife body 1. Operation after power-on.
  • the smoking pipe 2 includes an inner inner conductive tube 6 and an outer first insulating layer. On the outer circumference of the first insulating layer, a ring groove 21 is disposed, and the ring groove 21 is provided with a rotary bulge member 3, which is rotated.
  • the bulge member 3 is provided with a radial protrusion 31 in the radial direction of the smoking tube 2, and a finite position groove 41 is formed on the inner wall of the casing 4, and the radial protrusion 31 cooperates with the limiting groove 41 to realize the fixing of the rotary bulge member 3. .
  • the rotary bulge member 3 is provided with a mounting opening symmetrical with the radial protrusion 31, and the wall thickness of the rotary bulge member 3 is gradually thickened by the radial protrusion 31 from both sides of the mounting opening; when the smoking tube 2 can be in the shell When the body 4 moves axially, the groove depth of the ring groove 21 is gradually deepened by the radial projections 31 from both sides of the mounting opening of the rotary bulge member 3.
  • Rotating the smoking tube 2 realizes that the shallow groove of the ring groove 21 rotates toward the wall thickness portion of the rotary bulge member 3, and the rotary bulge member 3 is fixed to the axial direction of the housing 4, which causes the smoking tube 2 and the rotary bulge
  • the wall thickness formed by the fitting 3 is locally varied, which causes a change in the degree of expansion of the smoking tube 2 relative to the housing 4.
  • the simplest explanation of the reasonable angle is to prevent the phenomenon that the angle of rotation of the smoking tube 2 is too large to be reset, so that an arc groove is provided next to the edge of the ring groove 21. 22
  • the arcuate groove 22 occupies 1/8 of the circumference of the entire smoking pipe 2
  • the rotary bulge member 3 is provided with an axial projection 32 in the axial direction of the smoking pipe 2 to engage the arcuate groove 22, and the axial projection 32 It can only move within the arcuate groove 22, and when the axial projection 32 is at one end of the arcuate groove 22, the smoking tube 2 can move axially in the housing 4 when the axial projection 32 is in the arcuate groove 22.
  • the radial and axial locking of the smoking tube 2 and the housing 4 is achieved.
  • the distance by which the smoking tube 2 is rotated by the arrangement of the arcuate grooves 22 does not cause the smoking tube 2 and the casing 4 to be seizure due to the excessive force of the user.
  • the axial projection 32 is provided at the side of the radial projection 31 to form a unitary body.
  • the rotary bulge structure further includes a secondary expansion plug structure composed of an axial slope 33 provided on the rotary bulge member 3 and an axial reverse slope 23 provided on the outer wall of the smoking tube 2.
  • the first insulating layer of the smoking pipe 2 of the present application is in close contact with the casing 4, and the first insulating layer is provided with a ring groove 21, and the ring groove 21 is provided with a rotary bulging member 3 for rotating the outer wall of the bulge member 3. Also in close contact with the housing 4, the rotary bulge member 3 is provided with a radial projection 31 and an axial projection 32 integral with the radial projection 31, the radial projection 31 and the axial direction. The projection 32 is engaged in the limiting groove 41.
  • the ring groove 21 of the present application is eccentric, and the inner surface of the rotary bulge member 3 is attached to the ring groove 21.
  • the groove depth near the end of the limiting groove 41 is the deepest, and the groove depth away from the end of the limiting groove 41 is the shallowest.
  • the rotary bulge 3 having the shallowest groove depth has a mounting opening. Turn the smoking tube 2 to make the shallowest part of the groove turn to the left and right, and expand The rotary bulge 3 realizes the axial direction of the smoking tube 2 and its radial fixation.
  • the axial length of the conductive inner tube 6 is 3/4 of the axial length of the first insulating layer.
  • An elastic conductive sheet is placed at the end of the conductive inner tube 6, and the elastic conductive sheet is thermoplastically coated on the conductive inner tube 6 by the first insulating layer to contact the electrosurgical body 1, so that the elastic conductive sheet can maintain the original position during the thermoplastic process.
  • a limiting hole is defined in the conductive inner tube 6, and a limiting protrusion is disposed on the elastic conductive sheet to extend into the limiting hole.
  • the free end of the elastic conductive sheet forms a spiral curl which is in contact with the electrosurgical body 1 , and the spiral curl can make the contact with the electrosurgical body 1 more tight, preventing the occurrence of poor contact.
  • the inner surface of the smoking tube 2 is provided with a mounting portion 24 which is provided as a clamp-type card and structure, and the mounting portion 24 is disposed at a quarter of the first remaining after the conductive inner tube 6 and the first insulating layer intersect
  • the mounting portion 24 includes a symmetrical arrangement of the snap-fit unit, the snap-fit unit includes a curved bayonet portion 241 for fixing the electrosurgical body 1, the corner portion of the electrosurgical blade body 1 and the supporting arc-shaped bayonet portion 241, and The base 242 of the corner.
  • a smoking passage is left between the mounting portion 24 and the smoking tube 2.
  • the mounting portion 24 is substantially in the shape of a diamond. The long diagonal of the diamond is connected to the first insulating layer.
  • the two ends of the short diagonal are respectively spaced apart from the first insulating layer, and the distances respectively form a smoking passage.
  • a diamond-shaped short diagonal line is provided with a plug-in channel for inserting the electrosurgical body 1 , and the plug-in channel divides the mounting portion 24 into two symmetrically arranged engaging units, each of which is adjacent to the plugging channel
  • An arcuate bayonet portion 241 is formed for a portion of the arcuate edge, and the arcuate bayonet portion 241 is provided with a corner portion at an end away from the conductive inner tube 6.
  • the electric knife body 1 comprises a metal blade and an insulating engaging member disposed around the outer periphery of the metal blade, and the end portion of the insulating engaging member has a hexagonal cross section, wherein the two vertices are fixed by the corner portion to prevent the electric knife from being cut. Rotate when.
  • the housing 4 includes an inner wall independent metal sleeve 42 and a second insulating layer of the outer wall.
  • the cross section of the metal sleeve 42 is composed of a circle and a quadrangle, that is, the metal sleeve 42 is a circular space and is opened in a circle
  • the space-integrated limiting groove 41 is combined into a metal pipe which accommodates the smoking pipe 2, and the limiting groove 41 accommodates the radial projection 31.
  • a conductive wire 7 is disposed between the metal sleeve 42 and the second insulating layer, and the electronic control chip 8 is engaged on the second insulating layer, and the conductive wire 7 is connected to the electronic control chip 8 through a process such as bending.
  • the electronic control chip 8 is a PCB board with two buttons, and the PCB board is connected with a power cord and a conductive wire 7.
  • the sealing member is a section of thermoplastic tube. The sealing principle is that the thermoplastic tube is sleeved on the PCB board and extended to the power line formed by the conductive wire and the conductive wire 7, and then heated to make the thermoplastic tube heat-shrink and adhere to the PCB board.
  • thermoplastic tube continues to shrink and closely adhere to the conductive line or add a sealant in the thermoplastic tube
  • the conductive wire 7, the power cord and the thermoplastic tube are bonded together.
  • a conductive sheet 5 is disposed on the smoking tube 2 such that the conductive inner tube 6 is connected to the metal sleeve 42.
  • the conductive sheet 5 includes a card slot that is opened on the first insulating layer and connected to the conductive inner tube 6.
  • an elastic conductive block disposed in the card slot, the elastic conductive block comprises a base and an elastic protrusion integrally connected with the base, the base is a rectangular piece and the length faces are close to each other such that the width side has a curvature, and the elastic protrusion One side is formed by an arc, and the other side is formed by opening a segment on the rectangular piece and the opposite convexity of the above curvature.
  • the working circuit of the whole smoking electric knife is connected to the PCB board by the power line, the PCB board is connected with the conductive wire 7, and the conductive wire 7 is connected with the metal sleeve 42, and the metal sleeve 42 is connected with the conductive inner tube 6 through the conductive sheet 5, and the conductive inner tube 6
  • the electric blade body 1 is in contact with the elastic conductive sheet.
  • the first soft rubber layer is covered on the electronic control chip 8, and then a second soft rubber layer is disposed on the outer circumference of the housing 4 and the electronic control chip 8.
  • the required length is obtained, and the smoking pipe 2 is marked with a scale of 100 mm.

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  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
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  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract

一种吸烟电刀，包括电刀本体（1）、吸烟管（2）和设置在吸烟管（2）外的壳体（4）；吸烟管（2）的外壁与壳体（1）内壁之间形成一个旋式胀塞结构，该旋式胀塞结构包括一旋式胀塞件（3），当吸烟管（2）和旋式胀塞件（3）发生相对转动时，由吸烟管（2）和旋式胀塞件（3）配合形成的壁厚发生局部变动，致使吸烟管（2）相对壳体（1）发生胀紧程度的改变。旋式胀塞结构的使用使得吸烟管（2）转动自然并方便锁定。

Description

吸烟电刀 技术领域
本发明属于医疗器械加工技术领域，特别是一种吸烟电刀。
背景技术
电刀是一种常见的手术刀具，因为在进行手术切割的时候，会产生烟雾，遮挡医生的视线，影响手术的正常进行，所以现在的大多数电刀都带有烟雾吸收功能，通过真空吸附装置将手术产生的烟雾等吸出去，保证手术的正常及顺利进行。例如专利申请号为CN 201420797732.3、申请日：2014-12-17的中国发明专利就公开了一种吸烟电刀，吸烟管连接结构，包括插接在电刀外壳手柄内的吸烟管、设在所述吸烟管外圆周面上的锁紧环槽、设置在所述锁紧环槽内的弹性偏心套以及设在所述锁紧环槽上和所述弹性偏心套配合的凸出部；当所述吸烟管在所述电刀外壳手柄内正向旋转到预定角度时所述凸出部和所述弹性偏心套相配合使得所述吸烟管和所述电刀外壳手柄实现径向及轴向锁紧，且当所述吸烟管在所述电刀外壳手柄内反向旋转到预定角度时所述凸出部和所述弹性偏心套相配合以解除所述吸烟管和所述电刀外壳手柄的径向及轴向锁紧。上述公开文本为申请人的在先技术，但是经过使用后发现，该技术吸烟管的转动不是很自然，会出现卡顿现象；而且轴向移动的距离是固定的，不能微调，导致使用不是很方便。
发明内容
本发明的目的是为了提供一种转动自然且能在轴向上微调的吸烟电刀。
本发明的上述技术目的是通过以下技术方案得以实现的：吸烟电刀，包括电刀本体、吸烟管和设置在所述吸烟管外的壳体；所述电刀本体具有手术部和连接部，手术部伸出所述吸烟管，连接部与所述吸烟管的安装部配合连接，所述吸烟管的外壁与所述壳体内壁之间形成一个旋式胀塞结构，所述旋式胀塞结构包括一旋式胀塞件，当所述吸烟管和所述旋式胀塞件发生相对转动时，由所述吸烟管和所述旋式胀塞件配合形成的壁厚发生局部变动，致使所述吸烟管相对所述壳体发生胀紧程度的改变。
申请人经过反复的研究以及市场检验之后发现，虽然先前生产的吸烟管以插接的方式与电刀外壳手柄连接实现了轴向调整，但是其制作和加工的要求比较高，一旦间隙掌握不好，间隙小了，则会出现很难拆卸或调整的问题，间隙大了，则会出现连接不够牢固的问题，为此，申请人对吸烟管与壳体之间的配合可固定连接结构进行了改进，通过在吸烟管外壁上设置一个与壳体径向固定的旋式胀塞件，壳体内壁跟吸烟管内壁之间的距离在当吸烟管能在壳 体内轴向移动的时候是均匀不变的，当吸烟管往任何方向转动后，两者之间的距离在局部地区发生了改变，而且壳体内壁的横截面积和吸烟管内壁的横截面积是不会改变的，所以两者之间的局部地区发生改变后使得吸烟管被固定。
旋式胀塞件套设在吸烟管上。因为在制作的时候旋式胀塞件是塑料制成的，存在有一个安装口，有利于弹性偏心件发生形变，实现锁紧或松开的功能。旋式胀塞结构还包括开设在吸烟管外壁上用于设置旋式胀塞件的环槽，容纳和限制上述的旋式胀塞件。旋式胀塞结构中当旋式胀塞件为偏心轴套结构的时候，就是当旋式胀塞件的外壁形成偏心结构，通过对旋转旋式胀塞件来实现吸烟管和壳体的固定。如果环槽为偏心结构或者吸烟管横截面偏心结构，则需要转动吸烟管来实现吸烟管和壳体固定。而当本申请时环槽为偏心结构，旋式胀塞件的内壁与环槽紧密贴合，使得吸烟管外壁能与壳体内壁在吸烟管轴向自由移动的时候还能紧密接触；一转动吸烟管使得旋式胀塞件被张开，实现吸烟管与壳体的固定。
作为优选，所述安装部被设置为夹持式的卡合结构，所述卡合结构由若干数量面向设置的卡合单元构成，所述卡合单元包括用于固定所述电刀本体的弧形卡口部和支撑弧形卡口部的基部。电刀本体还包括设置在连接部上的绝缘卡合件，绝缘卡合件的横截面为一个六边形，为了配合绝缘卡合件的设置，在弧形卡口部的前方或者后方设置有角部来防止电刀本体的转动。而且卡合结构与吸烟管之间还留有吸烟通道。
作为优选，所述连接部外周围上设置有一个横截面呈一个六边形的绝缘卡合件，所述卡合单元还包括卡合所述绝缘卡合件的角部。
作为优选，所述壳体内壁被设置为一独立的金属套管，该金属套管作为一导体，向内通过设置所述安装部的导电片和与所述导电片连接的导电内管跟电刀本体电连通，向外通过导电丝和与所述导电丝连接的电控芯片电源线电连通。导电片包括基座和基座上的每一侧至少设置的一片弹性凸起。
作为优选，所述导电内管与所述电刀本体之间设置有弹性导电片。
作为优选，所述电控芯片外设置有密封件，所述密封件热塑后紧密包覆所述电控芯片和所述电源线。
作为优选，所述电控芯片外设置有密封件，所述密封件热塑后紧密包覆所述电控芯片，所述密封件与所述电源线之间设置有密封胶。
作为优选，所述旋式胀塞结构还包括径向限位结构，由设置在所述旋转胀塞件上的径向凸起和设在所述壳体内壁上的限位槽构成；所述旋式胀塞结构还包括轴向限位结构，由设置在所述旋式胀塞件上的轴向凸起和设置在所述吸烟管上的弧形槽构成。径向凸起和限位槽的 配合使得旋转胀塞件能与壳体保持相对静止。还使得整个旋转胀塞件的结构简单。为了防止转动角度过大，不利于吸烟管的复位，还防止当前述的偏心环槽与弹性偏心件因经常出现咬死现象而导致两者磨损过大需要经常更换，径向凸起和轴向凸起连接为一体；当旋式胀塞件带有安装口后，旋式胀塞件的壁厚由安装口两侧向径向凸起逐渐增厚，该优选加强整个旋式胀塞件的结构强度，使得整个旋式胀塞件的使用寿命增加。
作为优选，所述壳体外设置有配合所述电控芯片的第一软质橡胶层和设置在所述电控芯片的相对面第二软质橡胶层。使得整个技术方案对使用者来说具有手感舒适，缓解手部疲劳，
作为优选，所述旋式胀塞结构还包括二级胀塞结构，由设置在所述旋式胀塞件上的轴向斜面和设置在所述吸烟管外壁的轴向反斜面构成。
综上所述，本发明实现了吸烟电刀内的吸烟管转动自然并且吸烟管在轴向上可以微调。通过设置限位固定槽来减少偏心环槽与弹性偏心件之间的磨损，实现延长吸烟管的使用寿命。安装口的设置能使的弹性偏心件更容易固定，并且有利于弹性偏心件的结构强度稳定。吸烟电刀的吸烟通道的简化设置。吸烟电刀的整个电路密封防潮，且连接结构简单实用，接触良好。对操作者的手还能起到保护和按摩作用。
附图说明
图1是本发明的整体结构立体图；
图2是本发明的整体结构剖视图；
图3是本发明电刀本体连接吸烟管连接电控芯片连接壳体的示意图；
图4是本发明吸烟管与电刀本体连接的示意图；
图5是本发明吸烟管部分示意图；
图6是本发明旋转胀塞件的整体示意图；
图7是本发明电刀本体的整体结构示意图；
图8是本发明安装部的前视图；
图9是本发明安装部的后视图；
图10是本发明导电片的立体图；
图11是本发明旋式胀塞件与吸烟管的分离后的示意图；
图1-图11中，1-电刀本体，2-吸烟管，3-旋式胀塞件，4-壳体，5-导电片，6-导电内管，7-导电丝，8-电控芯片，21-环槽，22-弧形槽，23-轴向反斜面，24-安装部，31-径向凸起，32-轴向凸起，33-轴向斜面，41-限位槽，42-金属套管，241-弧形卡口部，242-基 部。
具体实施方式
以下结合附图对本发明作进一步详细说明。
如附图所示，吸烟电刀，包括电刀本体1、吸烟管2和设置在吸烟管2外的壳体4，壳体4上卡接有电控芯片8来控制电刀本体1内的通电后运作情况。
吸烟管2包括内层的导电内管6和外层的第一绝缘层，在第一绝缘层的外圆周上设置有环槽21，环槽21内设置有旋式胀塞件3，旋式胀塞件3在吸烟管2的径向上设置有径向凸起31，壳体4内壁上设置有限位槽41，径向凸起31与限位槽41配合实现旋式胀塞件3的固定。旋式胀塞件3上开设有安装口与径向凸起31对称，旋式胀塞件3的壁厚由安装口两侧向径向凸起31逐渐增厚；当吸烟管2可以在壳体4轴向移动时环槽21的槽深由旋式胀塞件3的安装口处两侧向径向凸起31逐渐加深。
转动吸烟管2实现环槽21的槽浅部向旋式胀塞件3的壁厚部转动，旋式胀塞件3与壳体4的轴向固定，这导致吸烟管2和旋式胀塞件3配合所形成的壁厚发生了局部的变动，这引起吸烟管2相对壳体4发生了胀紧程度的改变。
为了使得上述转动在一个合理的角度内转动，该合理角度最简单的解释就是为了防止因吸烟管2转动角度过大而产生无法复位的现象，所以在紧靠环槽21的傍边设置弧形槽22，弧形槽22占整个吸烟管2的圆周的1/8，旋式胀塞件3在吸烟管2的轴向上设置有轴向凸起32配合弧形槽22，轴向凸起32只能在弧形槽22内移动，当轴向凸起32处在弧形槽22一端时，吸烟管2可以在壳体4轴向移动，当轴向凸起32处在弧形槽22的另一端时，实现吸烟管2与壳体4的径向及轴向锁紧。通过弧形槽22的设置使得吸烟管2转动的距离不会因为使用者的发力过猛而导致吸烟管2和壳体4咬死。为使得径向凸起31与壳体4的接触面积更大使得两者的固定更加稳定轴向凸起32设置在径向凸起31的侧面处形成一个整体。
旋式胀塞结构还包括二级胀塞结构，由设置在旋式胀塞件3上的轴向斜面33和设置在吸烟管2外壁上的轴向反斜面23构成。
本申请吸烟管2上的第一绝缘层和壳体4之间紧密接触，第一绝缘层上开设有环槽21，环槽21内设置有旋转胀塞件3，旋转胀塞件3的外壁也与壳体4之间紧密贴合，旋转胀塞件3上设置有一个径向凸起31和一个与径向凸起31形成一体的轴向凸起32，径向凸起31和轴向凸起32被卡合在限位槽41内。本申请的环槽21是偏心的，旋式胀塞件3的内表面贴合环槽21，在靠近限位槽41端的槽深是最深的，远离限位槽41端的槽深是最浅的，槽深最浅处的旋式胀塞件3上有安装口。转动吸烟管2让槽深最浅处向左右转动，胀开 旋式胀塞件3实现吸烟管2轴向及其径向的固定。
导电内管6轴长为第一绝缘层轴长的3/4。在导电内管6端部安放一个弹性导电片，弹性导电片被第一绝缘层热塑在导电内管6上与电刀本体1接触，为了在热塑的时候弹性导电片能保持原来的位置，在导电内管6上开设有一个限位孔，在弹性导电片上设置有一个限位凸起伸入限位孔内。弹性导电片自由端形成一个螺旋卷曲与电刀本体1接触，螺旋卷曲可以使得与电刀本体1接触时更加紧密，防止出现接触不良的现象。
吸烟管2的内表面上设置有安装部24，安装部24被设置为夹持式的卡和结构，安装部24设置在导电内管6和第一绝缘层相交后剩余的1/4第一绝缘层上，安装部24包括对称设置的卡合单元，卡合单元包括固定电刀本体1的弧形卡口部241、卡合电刀本体1的角部和支撑弧形卡口部241和角部的基部242。安装部24与吸烟管2之间留有吸烟通道。安装部24大致成一个菱形，菱形的长对角线与第一绝缘层连接，短对角线的两端分别与第一绝缘层留有一个距离，该距离分别形成了一个吸烟通道。而且菱形短对角线处开设有一条方便插接电刀本体1的插接通道，插接通道将安装部24分为两个对称设置的卡合单元，每个卡合单元在插接通道旁为一段弧形边形成弧形卡口部241，弧形卡口部241在远离导电内管6的一端设置有角部。电刀本体1包括金属刀片和设置在金属刀片外周围的绝缘卡合件，绝缘卡合件的端部的横截面呈一个六边形，其中两个顶点被角部固定是防止电刀在切割的时候旋转。
壳体4包括内壁独立的金属套管42和外壁的第二绝缘层，金属套管42的横截面由一个圆和一个四边形相交组成，就是金属套管42为一个圆形空间和开设在与圆形空间连成一体的限位槽41组合成的金属管道，该圆形空间内容纳吸烟管2,而该限位槽41内容纳径向凸起31。在金属套管42和第二绝缘层之间设置导电丝7，第二绝缘层上卡合有电控芯片8，导电丝7经过弯曲等处理与电控芯片8连接。为了保持导电丝7和电控芯片8的干燥，在两者的外部设置有与两者紧密贴合的密封件。电控芯片8为一块带有2个按钮的PCB板，PCB板连接有电源线和导电丝7。密封件为一段热塑管，密封原理是将热塑管套接在PCB板上并延生到导电线和导电丝7形成的电源线上后进行加热处理使得热塑管受热收缩紧贴在PCB板和电源线上，然后对电控芯片8的一端进行裁剪和热密封处理，对另一端的电源线端通过继续加热使得热塑管继续收缩与导电线紧密贴合或者在热塑管内加入密封胶将导电丝7、电源线和热塑管粘结成一个整体。
为了使得电控芯片8与电刀本体1的电路连通，在吸烟管2上设置有导电片5使得导电内管6与金属套管42连接。导电片5包括开设在第一绝缘层上且与导电内管6连接的卡槽 和设置在卡槽内的弹性导电块，弹性导电块包括基座和与基座连接成一体的弹性凸起，基座为一个矩形片且长度面相互靠拢使得宽度边具有一个弧度，弹性凸起一侧面上由弧度形成，另一侧面上通过在矩形片上开出一条段片与上述弧度相反凸起形成。所以整个吸烟电刀的工作电路由电源线连接PCB板，PCB板连接导电丝7，导电丝7连接金属套管42，金属套管42通过导电片5与导电内管6连接，导电内管6通过弹性导电片与电刀本体1接触。
为了使用者的舒适度，在电控芯片8上覆盖第一软质橡胶层，然后还在壳体4配合电控芯片8的外圆周上设置有第二软质橡胶层。为了使用者的方便调取需要的长度，在吸烟管2上标有100mm刻度。
本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。

Claims (10)

  1. 吸烟电刀，包括电刀本体(1)、吸烟管(2)和设置在所述吸烟管(2)外的壳体(4)；所述电刀本体(1)具有手术部和连接部，手术部伸出所述吸烟管(2)，连接部与所述吸烟管(2)的安装部(24)配合连接，其特征在于，所述吸烟管(2)的外壁与所述壳体(4)内壁之间形成一个旋式胀塞结构，所述旋式胀塞结构包括一旋式胀塞件(3)，当所述吸烟管(2)和所述旋式胀塞件(3)发生相对转动时，由所述吸烟管(2)和所述旋式胀塞件(3)配合形成的壁厚发生局部变动，致使所述吸烟管(2)相对所述壳体(4)发生胀紧程度的改变。
  2. 根据权利要求1所述的吸烟电刀，其特征在与，所述安装部(24)被设置为夹持式的卡合结构，所述卡合结构由若干数量面向设置的卡合单元构成，所述卡合单元包括用于固定所述电刀本体(1)的弧形卡口部(241)和支撑弧形卡口部的基部(242)。
  3. 根据权利要求2所述的吸烟电刀，其特征在于，所述连接部外周围上设置有一个横截面呈一个六边形的绝缘卡合件，所述卡合单元还包括卡合所述绝缘卡合件的角部。
  4. 根据权利要求1所述的吸烟电刀，其特征在于，所述壳体(4)内壁被设置为一独立的金属套管(42)，该金属套管(42)作为一导体，向内通过设置所述安装部(24)的导电片(5)和与所述导电片(5)连接的导电内管(6)跟电刀本体(1)电连通，向外通过导电丝(7)和与所述导电丝(7)连接的电控芯片(8)电源线电连通。
  5. 根据权利要求4所述的吸烟电刀，其特征在于，所述导电内管(6)与所述电刀本体(1)之间设置有弹性导电片。
  6. 根据权利要求4或5所述的吸烟电刀，其特征在与，所述电控芯片(8)外设置有密封件，所述密封件热塑后紧密包覆所述电控芯片(8)和所述电源线。
  7. 根据权利要求4或5所述的吸烟电刀，其特征在与，所述电控芯片(8)外设置有密封件，所述密封件热塑后紧密包覆所述电控芯片(8)，所述密封件与所述电源线之间设置有密封胶。
  8. 根据权利要求1所述的吸烟电刀，其特征在与，所述旋式胀塞结构还包括径向限位结构，由设置在所述旋转胀塞件(3)上的径向凸起(31)和设在所述壳体(4)内壁上的限位槽(41)构成；所述旋式胀塞结构还包括轴向限位结构， 由设置在所述旋式胀塞件(3)上的轴向凸起(32)和设置在所述吸烟管(2)上的弧形槽(22)构成。
  9. 根据权利要求1或4所述的吸烟电刀，其特征在与，所述壳体(4)外设置有配合所述电控芯片(8)的第一软质橡胶层和设置在所述电控芯片(8)的相对面第二软质橡胶层。
  10. 根据权利要求1或8所述的吸烟电刀，其特征在与，所述旋式胀塞结构还包括二级胀塞结构，由设置在所述旋式胀塞件(3)上的轴向斜面(33)和设置在所述吸烟管(2)外壁的轴向反斜面(23)构成。
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