CN209107567U - A kind of multifunctional high frequency cutting is operated on - Google Patents

Abstract

The utility model provides a kind of multifunctional high frequency cutting and operates on, including processing unit, sheath section, operation portion.Processing unit has electrode and clip assembly, electrode can be used for tissue cutting and injecting fluid, and electrode has hollow tubular portion, and electrode can be released or be withdrawn relative to the distal end of sheath section, clip assembly stops blooding for tissue, and the clip assembly can be released or be withdrawn relative to the distal end of sheath section；Sheath section, positioned at the proximal end of the processing unit, including hollow draw-bar and bourdon tube；Operation portion, positioned at the proximal end of the sheath section, the high-frequency current connector including connecting the electrode by conducting wire drives the component of the electrode movement by operation lines, the component for driving the hollow draw-bar mobile, and liquid communication can be made to the liquid inlet in the hollow tubular portion of the electrode.Liquid can pass through from electrode hollow tubular portion, carry out submucosa injection to swell mucosal tissue, can also clean to bleeding part.

Description

A kind of multifunctional high frequency cutting is operated on

Technical field

The utility model relates to a kind of medical instruments field endoscopes to guide the lower cutting for carrying out the cutting of pathological tissues high frequency It operates on, more particularly to the high-frequency electrical incision knife of a kind of cutting, injection and hemostatic function one.

Background technique

Endoscopic technic was born over more than 50 years, experienced the stage from medical diagnosis on disease to disease treatment, for treating some disappear It is largely effective and reliable to change disease, or even as the preferred therapy for the treatment of.It is interior recently as the development of endoscopic technique Mucous membrane is shelled under the biopsy of mirror undertissue, endoscopic mucosal resection (Endoscopic mucosal resection, EMR), scope It is used widely from art (Endoscopic submucosal dissection, ESD), hemorrhage of digestive tract, polyp is cut Except the treatment with early cancer, it is increasingly becoming preferred treatment means.Wherein, especially ESD to the discovery of early cancer, diagnose and cut Except playing key effect.

Endoscopic submucosal dissection refers to micro- to the scope removed under the lesion progress mucous membrane greater than 2cm using high frequency instrument Wound technology.This technology realizes the en bloc resection of larger lesion, provides accurate pathological diagnosis by stages for lesion.With tradition Surgical operation is compared, and ESD preferably retains alimentary canal physiological function, hence it is evident that improve patient's art on the basis of eradicating tumour Quality of life afterwards is had become at present for the preferred treatment method of early gastrointestinal carcinoma and precancerous lesion including oesophagus.

Since ESD excision mucous membrane area is big, required time is longer, and the complication such as bleeding, perforation are also higher.At present For the various incision knifes of decollement under endoscopic mucosal, the function of general only incised tissue, the function of few electric coagulation hemostasis, Once encountering bleeding must take out incision knife from endoscopic forceps channel, replaces hot electric coagulation forceps and carry out electric coagulation hemostasis, especially encounter Blood supply patient abundant under mucous membrane, needs to replace instrument repeatedly, not only greatly increases operation time in this way, can also lose sometimes Best hemostasis opportunity is gone, the damage for the blood loss and some unnecessary surrounding tissues that patient is excessive is caused.In addition, ESD performed the operation Journey is many and diverse, general time-consuming very long, and need to perform the operation under scope guidance.Scope is introduced into human body discovery pathological tissues, instrument Enter in human body in endoscopic forceps channel, carry out lesion label, mark backed off after random instrument, uses injection needle instead and carry out submucosa injection, It is operated on and is performed the operation with suitable cutting again after injection, or so about 1~2 hour could successfully cut off 3cm's or so Early carninomatosis becomes, and removes sample and do pathological analysis.Instrument is needed replacing in operation, this makes operation become more cumbersome, and prolongs Operating time has been grown, has brought pain to patient.It is therefore desirable to develop a kind of to integrate cutting, injection, coagulation function High-frequency electrical incision knife.

Utility model content

The purpose of this utility model is to provide a kind of multifunctional high frequency electricity incision knife device, can to human lesion tissue into Row cutting, coagulation, high temperature burns, fluid injection, realizes and integrates cutting, fluid injection, blood coagulation, orientable multifunctional high frequency Cutting is operated on.

Hereinafter, one end of processing unit is defined as distal end, one end of operation portion is defined as proximal end.

A kind of multifunctional high frequency cutting is operated on, comprising: processing unit, sheath section, operation portion；Processing unit is located at multi-functional height The distal end that frequency cutting is operated on, including electrode is cut for tissue and injecting fluid, the electrode can relative to the distal end of sheath section To release or withdraw, the electrode has the hollow tubular portion axially extended；Clip assembly stops blooding for tissue, the folder Sub-component can be released or be withdrawn relative to the distal end of sheath section, and the clip assembly includes the first collet and the second collet, the One pin shaft, first collet and the second collet are connected by the first pin shaft, and the first pin shaft of driving can realize beating for clip assembly Open and close are closed；Sheath section, positioned at the proximal end of the processing unit, including hollow draw-bar, the proximal end of the electrode may pass through proximal end sky The inside of heart pull rod extends to distal end, and the hollow draw-bar is connect by the first pin shaft with first collet and the second collet, Manipulation hollow draw-bar can drive clip assembly to release or withdraw relative to the distal end of sheath section；Insulate outer tube, the insulation outer tube Lumen with the axis extension along sheath section, can accommodate hollow draw-bar and clip assembly；When clip assembly opening state, institute It is staggered in cross to state the first collet and the second collet, the symmetrical shape of the first collet and the second collet, to form clip group The folder portion of part.It is equipped with fastener on electrode hollow tubular portion outer surface, is equipped with limit in the electrode hollow tubular portion outer wall Position block can be cooperated by the limited block and first pin shaft, control the maximum distance that the electrode is stretched out to distal end.When When one collet and the second collet are closed, fastener is blocked by the first collet and the second collet, controls what the electrode was stretched out to distal end Minimum range.Operation portion, positioned at the proximal end of the sheath section, the high-frequency current connector including connecting the electrode by conducting wire； The component of the electrode movement is driven by operation lines；The component for driving the hollow draw-bar mobile；And liquid flow can be made Lead to the liquid inlet in the hollow tubular portion of the electrode.

Preferably, component is sliding block, and sliding block slides back and forth along core bar can make clip assembly stretch out or retract.

Preferably, component is thumb ring, is set to operation portion proximal end.

Sheath section further includes bourdon tube, fitted in the outer layer of hollow draw-bar.The distal outer surface of hollow draw-bar is covered with fixation Seat, the distal tip of fixing seat connecting spring pipe.Operation portion further includes core bar, along axially extending, the core of high-frequency electrical incision knife The distal end of bar is connected with insulation outer tube.

Sheath section has flexibility, including fixing seat, and hollow draw-bar, bourdon tube, insulate outer tube.Processing unit is set to ratio The sheath section is more leaned on the position of distal side, comprising: clip assembly and electrode；Operation portion is set to the sheath section Proximal end, for operating the processing unit, including electrode tip, sliding block, liquid inlet, thumb ring, core bar.

Processing unit includes clip assembly and electrode.Wherein clip assembly includes: the first collet and the second collet, the first pin Axis, the second pin shaft, third pin shaft, the 4th pin shaft and the 5th pin shaft, the first tong arm, the second tong arm, third tong arm, the 4th tong arm, Clip assembly stops blooding for tissue, and the clip assembly can be released or be withdrawn relative to the distal end of sheath section, clip assembly packet The first collet and the second collet are included, the first collet and the second collet are connected by the first pin shaft, and the first pin shaft of driving can realize folder The opening and closing of sub-component.Hollow draw-bar also passes through the first pin shaft and is flexibly connected with third tong arm and the 4th tong arm, third pincers Arm and the first tong arm pass through the mobilizable connection of third pin shaft, and the 4th tong arm and the second tong arm pass through the 4th mobilizable company of pin shaft It connects, the first tong arm and the second tong arm passes through the 5th pin shaft respectively and the second pin shaft is flexibly connected with hollow draw-bar.First collet and Second collet cross interlocks, and intervening portion is flexibly connected by the first pin shaft, forms the folder portion of clip assembly.First collet and The symmetrical shape of second collet, and the first collet and the second collet and after merging, end shape is at T-shaped, L shape, it is cylindrical or Any one in spherical shape.When contacting with pathological tissues, the first collet and the second collet are in closed form for electrode protrusion part.The One collet and the second collet are cladded with plated film or ceramics, can play the role of insulation.First tong arm and the second tong arm can also be with It is that the first collet and the second collet are flexibly connected by third pin shaft and the 4th pin shaft respectively in hook-type structure in end；Electrode It include: the hollow tubular portion axially extended and the protrusion in distal tip.Electrode distal end is hung down from the axis in hollow tubular portion Histogram is greater than the radius of the hollow tubular cross section of electrode to outwardly extending length, and outwardly extending portion is in the distal end of electrode End forms protrusion.Preferably, raised transversal profile is diverging distribution, such as circle distribution, Triangle-Profile, Y-shaped point Cloth.Protrusion can be hemisphere, and sphere, cylindrical body, triangular prism, the stereo structures such as Y font, electrode powers on, and convex portion can Tool bit part to cut target lesion tissue, as entire high-frequency electrical incision knife.Electrode, which can also only have, to be axially extended Hollow tubular portion, tool bit part of the hollow tubular portion as entire high-frequency electrical incision knife at this time.Outside the hollow tubular portion of electrode Wall is equipped with fastener, and fastener is blocky, cyclic annular or tubulose, wherein blocky fastener can be one group of fixture block being spaced apart from each other.Electrode It is made of metal material, metal material is not limited to the conductive material such as stainless steel, titanium, tungsten, and electrode can be released or be received It returns, target lesion tissue is cut when release.The a part in the hollow tubular portion of electrode is located in core bar, and another part stretches out core Bar, the part that core bar is stretched out in the hollow tubular portion of electrode are equipped with insulation outer tube, and insulation outer tube position is fixed.Wherein, electrode hollow Tubular portion extends to operation portion from the distal side of sheath section on the axis direction of sheath section, passes through operation lines and operation portion thumb ring It is connected.

Sheath section is set to the proximal end of processing unit, comprising: fixing seat, hollow draw-bar, bourdon tube, insulate outer tube, fastener.Absolutely Edge outer tube is cladded with insulating coating, plays the role of insulation.The outer tube that insulate has the lumen extended along the axis of sheath section, insulation The hollow tubular portion outer wall of electrode in outer tube is equipped with fastener, when fastener is moved to the first collet and the second folder of closed state When head distal tip, fastener is blocked by collet, realizes positioning, and electrode extension is minimum at this time.It can also according to demand, in electricity Pole hollow tubular portion outer wall is equipped with limited block, and limited block is operated on distal end movement to cutting and blocked by the first pin shaft, passes through limit The cooperation of block and the first pin shaft, to control the maximum distance of cutter head stretching.

Limited block is blocky or cyclic annular.Fastener and limited block can be with insulating coating or itself insulation.Limited block can be with It is set to electrode hollow tubular portion outer wall at a certain distance, reserves cutter head length, so that the hollow tubular portion of electrode and protrusion Insulation outer tube can be taken in completely.When the position of fastener is concordant with insulation distal outer tube end, only partially income insulation is outer for cutter head Pipe.Bourdon tube is enabled including sheath section using the helical member of overcoating insulating coating or the hollow hoses with conductive layer Free bend in sight glass can preferably pass through endoscope bend.In the proximal outer of electrode hollow tubular portion, it is externally embedded to one layer of sky Heart pull rod.The outer layer of hollow draw-bar is externally embedded to one layer of bourdon tube.Bourdon tube and electrode hollow tubular portion are used as drive part, are The component of torque transmitting, forms double drive, while bourdon tube proximal end is connected with electrode hollow tubular portion inside sheath section, real The conducting of existing circuit.In the distal tip of bourdon tube, there is fixing seat, can connect pull rod and bourdon tube distal end.

Operation portion includes electrode tip, sliding block, liquid inlet, core bar, thumb ring.Core bar along high-frequency electrical incision knife axial direction Extend, the distal end of core bar is connected with insulation outer tube, is equipped on the end of core bar mobile for the hollow tubular portion of coordination electrode Thumb ring, thumb ring can be circle, rectangular, the shapes such as ellipse.Thumb ring is connected with the hollow tubular portion proximal end of electrode, electrode Hollow tubular structures internal diameter is less than the internal diameter of core bar, so that pulling thumb ring, the hollow tubular of electrode can be made to come along inside core bar It pulls back dynamic, it is inconsistent by the limited block and the first pin shaft of hollow tubular portion outer wall to exit or withdraw electrode, it realizes to cutter head Overhang precisely limits.Situations such as when specific operation, such as encountering bend, electrode is protected to there is enough length between core bar Demonstrate,prove the surplus of cutter head overhang.In the middle part of core bar, it is equipped with sliding block, pushes sliding block, hollow draw-bar can be along core bar intracavitary reciprocal Movement, to release or withdraw clip assembly.Core bar intracavity diameter size is greater than bourdon tube intracavity diameter size, spring tube cavity Diameter dimension is greater than the intracavity diameter size of hollow draw-bar, and the intracavity diameter size of hollow draw-bar is greater than electrode hollow tubular portion Diameter dimension guarantees that the hollow tubular portion of electrode is coaxially inserted into inside bourdon tube.Enter in the end of core bar, while equipped with liquid Mouthful, such as 6% female Luer.Syringe or topping-up pump can be connected to 6% female Luer, carry out fluid injection, such as injection physiology Salt water etc..Electrode tip is located at the distal tip of operation portion, and electrode tip operates on inside in cutting and is connected with bourdon tube, and electrode tip is external High frequency electric source generator, wherein radio-frequency generator includes 60-8200-230, the Ai Erbo (ERBE) for being not limited to Kang Mei (CONMED) VIO300S, 300D etc..

In the actual operation process, first insulation outer tube can be moved to the near end, pushes sliding block to high-frequency electrical incision knife distal end Mobile, hollow draw-bar drives the first collet and the second collet movement, and the first collet and the second collet can be empty in bourdon tube and electrode It opens and closes and rotates under the drive in central, tubular portion, so that the first collet and the second collet open, can be used as haemostatic clamp progress coagulation and stop Blood, clip assembly are freely rotatable, convenient accurate crawl blutpunkte.When hemostasis finishes, push sliding block close to high-frequency electrical incision knife End movement, the first collet and the second collet closure.It pushes thumb circumferential direction high-frequency electrical incision knife distal end mobile, stretches out electrode, electrode is convex Play the cutting that pathological tissues are carried out as incision knife.Electrode can also only have the hollow tubular portion axially extended, utilize sky The cutting of central, tubular portion progress pathological tissues.When needing to carry out fluid injection to tissue, electrode distal end end can be placed in target mucosal Topping-up pump or external syringe are connected to 6% female Luer, injecting normal saline or indicarminum by organization internal, so as to Swell mucosal tissue, and under mucous membrane formed fluid cushion layer be " water cushion ", " water cushion " formed between muscle layer and lesion effectively every From, while heat transfer is also effectively prevented, keep surgical field of view apparent, blood vessel is closed by the extruding of water cushion, the risk of bleeding It significantly reduces.This fluid passage can also clean bleeding part.Without frequently replacement accessory in surgical procedure, significantly The reduction operation used time, improve operation safety.

The utility model has the advantages that

Multifunctional high frequency cutting provided by the utility model is operated on, and electrode is by the metal material structure with hollow tubular portion At to form fluid passage, liquid can pass through from electrode hollow tubular portion, carry out submucosa injection to swell mucous membrane Tissue, can also clean bleeding part.

Multifunctional high frequency cutting provided by the utility model is operated on, and the bourdon tube of sheath section is using the spiral shell for being cladded with insulating coating Rotating part or hollow hoses with conductive layer so that cutting operate on can in endoscope free bend.

Multifunctional high frequency cutting provided by the utility model is operated on, and the first collet and the second collet freely can be closed and open It opens, clip assembly is freely rotatable when closure, convenient accurate crawl blutpunkte.

Multifunctional high frequency cutting provided by the utility model is operated on, and has fastener and limit in electrode hollow tubular portion outer surface Position block, may be implemented free positioning, according to the actual situation come select it is different go out knife length.

Detailed description of the invention

Fig. 1 is that multifunctional high frequency cutting operates on schematic diagram

Fig. 2 is that the multifunctional high frequency cutting of partial enlargement under collet closed state operates on schematic diagram

Fig. 3 A-3B is that the multifunctional high frequency cutting of partial enlargement under collet open configuration operates on schematic diagram

Fig. 4 A-4B is that the multifunctional high frequency cutting under different knife length conditions out operates on schematic diagram

Fig. 5 A-5F is the distal tip schematic diagram of active electrode

Fig. 6 A-6D be multifunctional high frequency cutting operate on use process illustrate schematic diagram

Fig. 7 is thumb ring schematic diagram

10, processing unit, 11, electrode, 111, hollow tubular portion, 112, protrusion, 12a, the first collet, 12b, the second collet, 13a, the first pin shaft, 13b, the second pin shaft, 13c, third pin shaft, 13d, the 4th pin shaft, 13e, the 5th pin shaft, 14a, the first pincers Arm, 14b, the second tong arm, 14c, third tong arm, 14d, the 4th tong arm, 15, fastener, 16a, hook-type structure, 16b, hook-type structure, 17, limited block, 20, sheath section, 21, fixing seat, 22, hollow draw-bar, 23, bourdon tube, 24, insulation outer tube, 30, operation portion, 31, High-frequency current connector, 32, sliding block, 33, core bar, 34, thumb ring, 35, liquid inlet, 40, pathological tissues

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model.

Embodiment

Hereinafter, one end of processing unit is defined as distal end, one end of operation portion is defined as proximal end.As shown in Figure 1-3, this The multifunctional high frequency cutting of embodiment is operated on, including processing unit 10, sheath section 20 and operation portion 30.Processing unit 10 includes electrode 11, the clip with the first collet 12a and the second collet 12b, the first pin shaft 13a, the second pin shaft 13b, third pin shaft 13c, the The four pin shaft tong arm of 13d, the 5th pin shaft 13e, first 14a, the second tong arm 14b, third tong arm 14c, the 4th tong arm 14d.First pincers For arm 14a and third tong arm 14c by the mobilizable connection of third pin shaft 13c, the second tong arm 14b and the 4th tong arm 14d pass through the The four mobilizable connections of pin shaft 13d, the first tong arm 14a can also be in the mobilizable connection of hook-type structure 16a, the second tong arm 14b Can also be in the mobilizable connection of hook-type structure 16b, the first tong arm 14a and the second tong arm 14b respectively with the 5th pin shaft 13e and the Two pin shaft 13b are flexibly connected.Third tong arm 14c passes through the tail portion of the first pin shaft 13a and the first collet 12a and the second collet 12b Mobilizable connection.First pin shaft 13a is fixedly connected on the distal end of hollow draw-bar 22, and the second pin shaft 13b is mobilizable to be connected to The distal end of hollow draw-bar 22 pulls hollow draw-bar 22 extended or recalls clip assembly.

As shown in figs.3 a and 3b, the first collet 12a and the second collet 12b cross interlock, and are connected by the first pin shaft 13a activity The clip connect is openable or closure, and when opening state, the first collet 12a and the second collet 12b are staggered in cross, the first collet The symmetrical shape of 12a and the second collet 12b are used to stop blooding to tissue to form the folder portion of clip assembly.First collet 12a Plated film or ceramics can be cladded with the second collet 12b, play the role of insulation.

As shown in Fig. 5 A-5F, electrode 11 passes through hollow draw-bar 22 from distal end and connect with the operation lines of proximal end.Electrode 11 can wrap The hollow tubular portion 111 axially extended and the protrusion 112 in distal tip are included, electrode 11, which can also only have, axially to be prolonged The hollow tubular portion 111 stretched is without protrusion 112.The axis vertical direction in 11 distal end of electrode from hollow tubular portion 111 is outside The length of extension is greater than the cross sectional radius in the hollow tubular portion 111 of electrode, distal tip of the outwardly extending portion in electrode 11 Form protrusion 112.

As shown in Figure 5A, raised 112 transversal profiles are circle distribution, and protrusion 112 is hemisphere.As shown in Figure 5 B, raised 112 transversal profile is circle distribution, and protrusion 112 is sphere.As shown in Figure 5 C, the transversal profile of protrusion 112 is circle distribution, Protrusion 112 is cylindrical body.As shown in Figure 5 D, the transversal profile of protrusion 112 is Triangle-Profile, and protrusion 112 is triangular prism.Such as figure Shown in 5E, the transversal profile of protrusion 112 is Y shape distribution, and protrusion 112 is Y font.As illustrated in figure 5f, electrode 11 can also only have There is the hollow tubular portion 111 axially extended.

Sheath section 20 as shown in Figure 2 includes fixing seat 21, and hollow draw-bar 22, bourdon tube 23, insulate outer tube 24, fastener 15 With limited block 26.Hollow draw-bar 22 can be hollow draw-bar, and electrode 11 is allowed to pass therethrough.First pin shaft 13a is fixedly connected on The distal end of hollow draw-bar 22, third tong arm 14c and the 4th tong arm 14d pass through the folder of the first pin shaft 13a and the first collet 12a and second The mobilizable connection in tail portion of head 12b, is fixed on hollow draw-bar 22, the second pin shaft 13b is mobilizable to be connected to hollow draw-bar 22 distal end, the first tong arm 14a and the second tong arm 14b pass through the 5th pin shaft 13e and the second pin shaft 13b respectively and hollow draw-bar can Movable connection, it is mobilizable to be fixed on hollow draw-bar 22, to pull hollow draw-bar 22 that can realize stretching or recall clip Component.Be covered with fixing seat 21 in the distal outer surface of hollow draw-bar 22, fixing seat 21 can connecting spring pipe 23 distal tip, bullet Reed pipe 23 can increase the flexibility and bendability that multifunctional high frequency cutting is operated on.The outer tube 24 that insulate has the axis along sheath section 10 The lumen of extension, hollow draw-bar 22 can move freely wherein.

As shown in Fig. 2 and Fig. 4 A-4B, fastener 15 is equipped on 111 outer surface of hollow tubular portion.Fastener 15 is blocky, ring Shape or tubulose, wherein blocky fastener can be one group of fixture block being spaced apart from each other.It is set on the outer wall in the hollow tubular portion 111 of electrode There is limited block 17, limited block 17 is blocked by the first pin shaft 13a, the maximum distance that 11 forward end of coordination electrode is stretched out, to control The length that electrode 11 stretches out.When fastener 15 is moved to the first collet 12a and the second collet 12b distal tip of closed state, Fastener 15 is blocked by two collets, realizes positioning, and 11 extension elongation of electrode is minimum at this time.Limited block 17 is blocky or cyclic annular.

As depicted in figs. 1 and 2, operation portion 30 is located at the proximal end of sheath section 20, and electrode 11 can be made opposite with clip assembly It releases or withdraws in the front end of sheath section 20, and the lumen of injecting fluid can be provided.Operation portion 30 connects including high-frequency current First 31, sliding block 32, core bar 33, thumb ring 34, liquid inlet 35.The thumb ring 34 of proximal end is connected by operation lines with electrode 11, from And the extending and withdrawal of coordination electrode 11, high-frequency current connector 31 can be connected by conducting wire with electrode 11, be provided for electrode 11 High-frequency current.The inside that the proximal end of electrode 11 passes through proximal end hollow draw-bar 22 extends to distal end.Sliding block 32 and hollow draw-bar 22 Proximal end is connected, and sliding block 32 can be moved forward and backward along core bar 33, to drive the movement of hollow draw-bar 22 to stretch out or withdraw clip Component.Sliding block 32 is pushed forward, and hollow draw-bar 22 drives the first collet 12a and the second collet 12b distal movement, is gradually opened It is staggered in cross, sliding block 32 is withdrawn backward, and hollow draw-bar 22 drives the first collet 12a and the second collet 12b to be collapsible into insulation In outer tube 23, the opening and closing of the first collet 12a and the second collet 12b are realized.Bourdon tube 23 and electrode 11 are used as driving portion Point, it is the component of torque transmitting, forms double drive inside sheath section 20, bourdon tube 23 increases the distortion power of drive part.

Fig. 6 A-6D illustrates the operating process that multifunctional high frequency cutting is operated in the utility model: in the actual operation process, The multifunctional high frequency cutting of the utility model is operated on as shown in Figure 6A and is inserted near pathological tissues 40 by endoscope cavity, Active electrode 11 is kept to be in retracted state in the process, the protrusion 112 of active electrode abuts the first collet 12a and second Collet 12b, and the first collet 12a and the second collet 12b are contracted in insulation outer tube 23.Multifunctional high frequency cutting, which is operated on, to be reached After pathological tissues 40, active electrode 11 is still kept to be in retracted state, the height that the utility model multifunctional high frequency cutting is operated on Frequency current joint 31 is connect with external radio-frequency generator, and wherein radio-frequency generator includes the 60- for being not limited to Kang Mei (CONMED) 8200-230, Ai Erbo (ERBE) VIO300S, 300D etc..To be passed through high-frequency current to active electrode 11, and in pathological tissues It is marked around 40, after the completion of label, stopping is passed through high-frequency current.

As shown in Figure 6B, the multifunctional high frequency cutting of the utility model is operated on, and thumb ring 34 is pushed to move forward, and stretches out activity Active electrode 11 is placed in mark point and is inserted into the submucosa of pathological tissues 40 by electrode 11, by liquid inlet 35 to lesion Injecting normal saline or indicarminum swell tissue in tissue 40.

As shown in Fig. 6 C-6D, after pathological tissues protuberance, it is passed through high-frequency current to active electrode again, while making active electricity It is cut along direction shown in Fig. 6 C pole 11.As shown in Figure 6 D, after cutting terminates, stopping is passed through high-frequency current, to being pushed forward Movable slider 32, driving hollow draw-bar 22 move forward, and open clip assembly, the first collet 12a and the second collet 12b and hand in cross Wrong shape opens, and withdraws thumb ring 34 backward and recalls active electrode 11, so that the first collet 12a and the second collet 12b that open, can make Electric coagulation hemostasis is carried out for haemostatic clamp, clip assembly is freely rotatable, convenient accurate crawl blutpunkte.

As shown in fig. 7, thumb ring can be circle, rectangular, the shapes such as ellipse.

Four kinds of functions are able to achieve using the instrument of above-mentioned construction.First, multifunctional high frequency cutting provided by the utility model It operates on, while there is electrode and clip assembly, fluid injection can be achieved at the same time, cut and integrated function of stopping blooding, in surgical procedure, Without frequently replacing instrument, significantly the reduction operation used time, operation safety is improved.Second, more function provided by the utility model Energy high-frequency electrical incision knife, electrode are made of the metal material with hollow tubular portion, and hollow parts form fluid passage, and liquid can Pass through from electrode hollow tubular portion, carries out submucosa injection to swell mucosal tissue, bleeding part can also be carried out Cleaning.Third, the bourdon tube of sheath section uses the helical member of overcoating insulating coating or the hollow hoses with conductive layer, so that Cutting operate on can in endoscope free bend.Fourth, multifunctional high frequency cutting provided by the utility model is operated on, the first folder Head and the second collet freely can be closed and open, and clip assembly can be free by the torque transmission of bourdon tube to clip assembly Rotation, convenient accurate crawl blutpunkte.Fifth, multifunctional high frequency cutting provided by the utility model is operated on, in electrode hollow pipe There is fastener and limited block in shape portion, free positioning may be implemented, select different electrode extensions according to the actual situation.

It is only the preferred embodiment of the application described in upper, makes skilled artisans appreciate that or realizing the application's Utility model.A variety of modifications and combination for these embodiments will be apparent for those skilled in the art , the general principles defined herein can without departing from the spirit or scope of the application, in other embodiments Middle realization.Therefore, the application will not be limited in the embodiments shown herein, and be to fit to it is disclosed herein Principle and the consistent widest scope of features of novelty.

Claims (15)

1. a kind of multifunctional high frequency cutting is operated on, which is characterized in that the multifunctional high frequency cutting, which is operated on, includes:

Processing unit, sheath section, operation portion；

The processing unit, positioned at the distal end that multifunctional high frequency cutting is operated on, including electrode is cut for tissue and injecting fluid, institute The distal end that electrode is stated relative to sheath section can be released or withdraw, and the electrode has the hollow tubular portion axially extended； Clip assembly stops blooding for tissue, and the clip assembly can be released or be withdrawn relative to the distal end of sheath section, the clip group Part includes the first collet and the second collet, and the first pin shaft, first collet and the second collet are connected by the first pin shaft, driven First pin shaft can realize the opening and closing of clip assembly；

The sheath section, positioned at the proximal end of the processing unit, including hollow draw-bar, it is hollow that the proximal end of the electrode may pass through proximal end The inside of pull rod extends to distal end, and the hollow draw-bar is connect by the first pin shaft with first collet and the second collet, grasps Vertical hollow draw-bar can drive clip assembly to release or withdraw relative to the distal end of sheath section；Insulate outer tube, the insulation outer tube tool There is the lumen of the axis extension along sheath section, hollow draw-bar and clip assembly can be accommodated；

The operation portion, positioned at the proximal end of the sheath section, the high-frequency current connector including connecting the electrode by conducting wire；It is logical Cross the component that operation lines drive the electrode movement；The component for driving the hollow draw-bar mobile；And liquid communication can be made To the liquid inlet in the hollow tubular portion of the electrode.

2. multifunctional high frequency cutting according to claim 1 is operated on, which is characterized in that the electrode distal end is from hollow tubular The outwardly extending length of axis vertical direction in portion is greater than the radius of the hollow tubular cross section of the electrode, outwardly extending portion Divide and forms protrusion in the distal tip of electrode.

3. multifunctional high frequency cutting according to claim 2 is operated on, which is characterized in that the transversal profile of the protrusion is hair Dissipate distribution.

4. multifunctional high frequency cutting according to claim 1 is operated on, which is characterized in that the processing unit further includes second Pin shaft, third pin shaft, the 4th pin shaft, the 5th pin shaft, the first tong arm, the second tong arm, third tong arm, the 4th tong arm are described hollow Pull rod also passes through the first pin shaft and is flexibly connected with third tong arm and the 4th tong arm, and the third tong arm and the first tong arm pass through third The mobilizable connection of pin shaft, the 4th tong arm and the second tong arm pass through the 4th mobilizable connection of pin shaft, first tong arm Pass through the 5th pin shaft and the second pin shaft respectively with the second tong arm to be flexibly connected with the hollow draw-bar.

5. multifunctional high frequency cutting according to claim 4 is operated on, which is characterized in that first tong arm and third tong arm In the mobilizable connection of hook-type structure, second tong arm and the 4th tong arm are in the mobilizable connection of hook-type structure.

6. multifunctional high frequency cutting according to claim 1 is operated on, which is characterized in that the sheath section further includes spring Pipe, fitted in the outer layer of hollow draw-bar.

7. multifunctional high frequency cutting according to claim 6 is operated on, which is characterized in that outside the distal end of the hollow draw-bar Surface is covered with fixing seat, the distal tip of fixing seat connecting spring pipe.

8. multifunctional high frequency cutting according to claim 1 or 4 is operated on, which is characterized in that when clip assembly opening state, First collet and the second collet are staggered in cross, the symmetrical shape of the first collet and the second collet, to form clip The folder portion of component.

9. multifunctional high frequency cutting according to claim 1 is operated on, which is characterized in that the first collet and the second collet can be with Overcoating plated film or ceramics.

10. multifunctional high frequency cutting according to claim 1 is operated on, which is characterized in that in the electrode hollow tubular portion Outer surface is equipped with fastener, is equipped with limited block in hollow tubular portion outer wall, passes through the limited block and first pin shaft Cooperation controls the maximum distance that the electrode is stretched out to distal end, and by fastener, the cooperation of the first collet and the second collet controls institute State the minimum range that electrode is stretched out to distal end.

11. multifunctional high frequency cutting according to claim 10 is operated on, which is characterized in that the fastener is blocky, cyclic annular Or tubulose.

12. multifunctional high frequency cutting according to claim 10 is operated on, which is characterized in that the limited block is blocky or ring Shape.

13. multifunctional high frequency cutting according to claim 1 is operated on, which is characterized in that the operation portion further includes core bar, Along the axially extending of high-frequency electrical incision knife, the distal end of core bar is connected with insulation outer tube.

14. multifunctional high frequency cutting according to claim 13 is operated on, which is characterized in that the component is sliding block, described Sliding block slides back and forth along the core bar can make clip assembly stretch out or retract.

15. multifunctional high frequency cutting according to claim 1 is operated on, which is characterized in that the component is thumb ring, is set to behaviour Make portion's proximal end.