CN208958314U - Electric scalpel - Google Patents

Electric scalpel Download PDF

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Publication number
CN208958314U
CN208958314U CN201820947170.4U CN201820947170U CN208958314U CN 208958314 U CN208958314 U CN 208958314U CN 201820947170 U CN201820947170 U CN 201820947170U CN 208958314 U CN208958314 U CN 208958314U
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China
Prior art keywords
outer sheath
pipe
handle
electric scalpel
scalpel according
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CN201820947170.4U
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Chinese (zh)
Inventor
周平红
蔡明琰
孙曙
朱凤磊
黎洁
张忠民
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Changzhou Leo Medical Co Ltd
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Changzhou Leo Medical Co Ltd
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Abstract

The utility model provides a kind of Electric scalpel comprising: outer sheath, one end of outer sheath are equipped with handle set, and handle set has pipe fitting;Handle, sliding are set on handle set, and energization connector is equipped on handle;It is sequentially connected and conductive conduit, traction rope and snare ring, is threaded through in outer sheath;Star pipe of the outer peripheral surface with protrusion means is arranged on traction rope, and the both ends of star pipe are fixedly linked with traction rope by fixing piece sealing, the maximum outside diameter of star pipe is less than the internal diameter of the outer sheath;Coagulating electrode is installed in the outer sheath on the inner wall of the other end of outer sheath, when can contact with the coagulating electrode in snare ring retraction outer sheath.The utility model not only increases handle and makees to stretch out close to when the movement of outer sheath, snare ring can be stablized from the other end of the outer sheath, and realizes a kind of electric knife with function of injection.

Description

Electric scalpel
Technical field
The present invention relates to medical instruments fields, are used for alimentary canal, respiratory tract polyp or tumour mucous membrane more particularly to one kind The Electric scalpel of excision or removing.
Background technique
Decollement (Endoscopic submucosal dissection, ESD) occurs in recent years under endoscopic mucosal One new good technology for the treatment of means and potential applicability in clinical practice, allows more early stage digestive system cancers can be under scope Disposable excision completely eliminates the pain and the excision of organ of abdominal.ESD and laparotomy ventrotomy and previous EMR Endoluminal treatment methods such as (Endoscopic Mucosal Resec-tion, endoscopic mucosal resection) compare, and have wound Small, patient is subjected to multiple positions and repeatedly treats, and doctor is made to obtain complete histopathology sample for analysis, for area compared with Big and form is irregular or merge ulcer, the tumour of scar carries out 96% or more resection rate, to reduce recurrence probability the advantages that.
Conventional ESD surgical procedure needs to carry out excision extension label, injection protuberance, mucous membrane and cuts the behaviour such as removing, hemostasis Make.Operating process needs various types instrument, such as Dull Knife, IT Knife, Hook Knife, injection needle, hemostasis Folder, hot biopsy forceps etc., total cost is higher.Also, all kinds of instruments are needed to frequently replace in surgical procedure, operating time is longer.
Chinese patent: a kind of medical cutting and electric coagulation device (201510506373.0), a kind of rotary-type cutting and coagulation Device (201610423834.2) proposes the technology that can be used for cutting, coagulation, edge cutting coagulation, in traction rope and Gap is larger between outer sheath, easily cause snare ring head end stretch out it is unstable, it is easy when implementing edge cutting coagulation technology Cause operation error.In addition, though it can partially be substituted, existing each instrument carries out excision extension label, mucous membrane cuts removing, The operation of hemostasis, but can not achieve injection protuberance function, therefore still need to the instruments such as exchange injection needle in art and carry out injection protuberance Operation.
Therefore, it is necessary to design it is a kind of can complete, complete independently ESD surgical procedure instrument, and ensure that surgical procedure is steady It is fixed, to reduce surgery cost, reduce operating time, raising operation safety.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of Electric scalpels, for solving In the prior art when implementing edge cutting coagulation technology, snare ring stretches out unstable problem.
In order to achieve the above objects and other related objects, the present invention provides a kind of Electric scalpel comprising: outer sheath, outside One end of sheath is equipped with handle set, and handle set has and the through hole communicated in outer sheath and the pipe laterally communicated with through hole Connector;Handle, sliding are set on handle set, and energization connector is equipped on handle;It is sequentially connected and conductive conduit, traction rope With snare ring, it is threaded through in outer sheath;Conduit is pierced by the through hole to be connected with the energization connector on handle;Work as hand Handle is made to drive snare ring from the stretching of the other end of the outer sheath or retraction outer sheath close to or away from when the movement of outer sheath In;The sealing device that will pass through hole sealing is equipped in the handle set for the conduit place of being pierced by;It is arranged on the traction rope Star pipe of the outer peripheral surface with protrusion means, and the both ends of star pipe are fixedly linked with traction rope by fixing piece sealing, star The maximum outside diameter of pipe is less than the internal diameter of the outer sheath;Coagulating electrode is installed in the outer sheath close to the other end of outer sheath Inner wall on, when can be contacted with the coagulating electrode in snare ring retraction outer sheath.
The other end of the outer sheath is inserted with protection pipe, and the part that protection pipe exposes to outer sheath is conical section, protection It is cylindrical section that pipe, which is located at the part in outer sheath,.
Preferably, the maximum outside diameter of the protection pipe is identical as the outer diameter of the outer sheath.
Preferably, the outer surface of the protection pipe is equipped with the protrusion with the epitheca inside pipe wall tight fit.
Preferably, the outer surface of the protection pipe is Non-smooth surface plane.
Preferably, the pipe fitting connects syringe, and inner cavity, through hole and the epitheca tube cavity of the pipe fitting form note Penetrate liquid channel.
Preferably, the pipe fitting connection is equipped with the gas source of inert gas, inner cavity, through hole and the epitheca of the pipe fitting Tube cavity forms gas passage.
Preferably, the seal chamber communicated with the through hole is equipped in the handle set, the sealing device is placed in described In seal chamber, sealing device is formed side by side by multiple O-ring seals, and all sealing rings are located in seal chamber by briquetting.
Preferably, the briquetting be nonmetallic materials, by way of gluing, ultrasonic welding, riveting or crimping with it is described Handle set is fixed.
Preferably, the protrusion means are a plurality of raised line axially extending along the star tube outer surface.
Preferably, the handle set is equipped with around the runner through axially bored line rotation, and the conduit is connected with runner, The conduit, traction rope and snare ring rotation under the drive of runner.
Preferably, the snare ring is to be formed by a stainless steel or titanium-nickel wire;Or to add NiTi material by a stainless steel Expect that the silk being combined is formed.
Preferably, the snare ring is to be formed by multiply stainless steel or NiTi braided wires;Or to add nickel by multiply stainless steel The braided wires that titanium material is combined are formed.
Preferably, the star pipe of PP, PTFE, PE or PA material by being made.
As described above, Electric scalpel of the invention, has the advantages that by setting star in traction rope fixed sleeves Pipe eliminates the gap between traction rope and outer sheath by the periphery protrusion of star pipe with this, its gap between outer sheath is made to contract It is small, traction rope is improved in outer sheath inner shaft to mobile stability, is also just improved handle and is made to enclose close to when the movement of outer sheath Lantern ring can be stablized from the other end of the outer sheath to be stretched out, it is ensured that the stability of instrument in surgical procedure improves operation safety; It is the protection pipe of taper by setting head, so that the head end of protection pipe is easy to carry out subsequent operation in insertion tissue openings.
Detailed description of the invention
Fig. 1 is shown as Electric scalpel schematic diagram of the invention.
Fig. 2 is shown as in Fig. 1 partial enlarged view at K.
Fig. 3 is shown as the partial schematic diagram that Electric scalpel centre circle lantern ring of the invention is retracted in outer sheath.
Fig. 4 is shown as the partial schematic diagram that Electric scalpel centre circle collar portion of the invention stretches out.
Fig. 5 is shown as sealing device schematic diagram of the invention.
Fig. 6,7,8 are shown as several embodiment sectional views of star pipe.
Fig. 9 is shown as the schematic diagram of coagulating electrode.
Figure 10-13 is shown as several implementation example figures of protection pipe.
Figure 14 is shown as an implementation example figure of handle set of the invention.
1. snare ring of component label instructions, 101. extension ends, 2. connecting tubes, 3. protection pipes, 301. cylindrical sections, 302. cones Shape section, 303. convex hooks, 304. salient points, 4. outer sheaths, 5. coagulating electrodes, 501. bourdon tubes, 502. pins, 6. traction ropes, 7. hands Handle seat, 701. through holes, 702. runner slots, 703. seal chambers, 8. sealing devices, 9. conduits, 10. pipe fittings, 100. pipe fittings Inner cavity, 11. energization connectors, 12. handles, 13. high frequency electric sources, 14. syringes, 16. runners, 161. runner proximal end faces, 162. Runner distal face, 17. fixing pieces, 18. stars pipe, 19.O type sealing ring, 20. briquettings.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Fig. 1 is please referred to Figure 14.It should be clear that structure, ratio, size etc. depicted in this specification institute attached drawing, are only used To cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can The qualifications of implementation, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the present invention provides a kind of Electric scalpel comprising: one end of outer sheath 4, outer sheath 4 is equipped with handle Seat 7, as shown in Figure 5, handle set 7 have with the through hole 701 communicated in outer sheath 4 and connect with the pipe that through hole laterally communicates First 10, in the present embodiment the inner cavity 100 of pipe fitting and through hole 701 vertically through;Handle 12, sliding are set on handle set 7, Handle 12 is equipped with energization connector 11;It is sequentially connected and conductive conduit 9, traction rope 6 and snare ring 1, is threaded through outer sheath 4 It is interior;Conduit 9 is pierced by out of handle set 7 through the through hole 701 to be connected with the energization connector 11 on handle 12;When handle 12 Make to drive snare ring 1 from the stretching of the other end of the outer sheath 4 or retraction outer sheath 4 close to or away from when the movement of outer sheath 4 In;The sealing device 8 that will pass through the sealing of hole 701 is equipped with for 9 place of being pierced by of conduit in the handle set 7;On the traction rope 6 It is arranged with star pipe 18 of the outer peripheral surface with protrusion means, as shown in Figure 2, and the both ends of star pipe 18 pass through admittedly with traction rope 6 Determine the sealing of part 17 to be fixedly linked, the maximum outside diameter of star pipe 18 is less than the internal diameter of the outer sheath 4;Coagulating electrode 5 is installed in institute Outer sheath 4 is stated on the inner wall of the other end of outer sheath, when can connect with the coagulating electrode 5 in 1 retraction outer sheath 4 of snare ring Touching.
Electric scalpel of the invention passes through star pipe 18 by setting star pipe 18 in 6 fixed sleeves of traction rope with this Periphery protrusion to carry out local radial overstriking to traction rope 6, makes its gap shrinks between outer sheath 4, improves traction rope 6 outside The stability moved axially in sheath 4 also just improves handle 12 and makees close to when the movement of outer sheath, and snare ring 1 can be from described The other end of outer sheath 4, which is stablized, to be stretched out, it is ensured that the stability of instrument in surgical procedure improves operation safety.Star pipe 18 Non- convex portion is also fluid by reserving enough channels.
For ease of description, in the application in use according to Electric scalpel, operator's handheld state is come the side of definition To, close to one end of hand be Electric scalpel proximal end, far from hand one end be Electric scalpel distal end.Specifically: outer sheath 4 with The connected one end of handle set 7 is known as the proximal end of outer sheath 4, and the other end of outer sheath 4 is known as the distal end of outer sheath 4, guide pipe 9 Proximal end is connected with energization connector 11, and the distal end of guide pipe 9 is connected with the proximal end of traction rope 6, distal end and the snare ring 1 of traction rope 6 It is connected.
To prevent 4 nozzle of outer sheath in use by high-temperature damage, the present embodiment is inserted in the distal end of outer sheath 4 Protection pipe 3, as shown in Figure 10, the part that protection pipe 3 exposes to outer sheath 4 is conical section 302, and protection pipe 3 is located in outer sheath 4 Part be cylindrical section 301.On the one hand the present embodiment can prevent outer sheath 4 by the way that protection pipe 3 is arranged in the distal end of outer sheath For nozzle in use by high-temperature damage, the conical section 302 of still further aspect protection pipe is easy insertion mucosal tissue opening portion Position, can be such that Electric scalpel more contacts with mucosal tissue to be performed the operation, and operate convenient for subsequent procedures.
Be plugged in the stability in outer sheath to increase protection pipe, both improve the firmness combined, avoid protection pipe 3 from Abjection is loosened in outer sheath 4, the outer surface of the present embodiment protection pipe 3 is equipped with the protrusion with epitheca inside pipe wall tight fit.This implementation The outer surface (i.e. the outer surface of cylindrical section 301) that contact with outer sheath 4 of example protection pipe 3 for Non-smooth surface face (such as with recessed Hole) or there are the face of several obvious protrusions or points, it is therefore intended that increase the frictional force between protection pipe 3 and outer sheath 4.It is above-mentioned Protrusion setting can be there are many form: such as shown in Figure 11, in proximal end (being located at one end in outer sheath) setting one of protection pipe 3 Convex hook 303 is enclosed, convex hook 303 can be with epitheca inside pipe wall tight fit;As shown in figure 12, it is set in the outer surface of the cylindrical section of protection pipe 3 There are multiple salient points 304, the setting of salient point can increase the frictional force of protection pipe 3 Yu outer sheath 4, improve the combination fastness of the two; As shown in figure 13, multiple convex blocks are equipped in the outer surface of the cylindrical section of protection pipe 3, and convex in one circle of the proximal end of pillar 3 setting It hooks, increases the frictional force of protection pipe 3 Yu outer sheath 4 by the combination of convex block and convex hook, improve the combination fastness of the two.It protects Protrusion on pillar 3 is without being limited thereto, need to only be able to achieve the frictional force for increasing protection pipe and outer sheath.
For convenient for operation, facilitate Electric scalpel to protrude into during operation in vivo, in the present embodiment the maximum outside diameter of protection pipe 3 and The outer diameter of the outer sheath 4 is identical, i.e., the maximum outside diameter of above-mentioned conical section is identical as the outer diameter of outer sheath 4, makes to enter intracorporal Protection pipe, outer sheath smooth outer surface transition prevent the disengaging due to caused by uneven surface in use and clamp having some setbacks for road operation. In addition, the distal end of protection pipe 3 is arranged to conical section 302, the guiding performance into pincers road can be increased.
The setting of above-mentioned protection pipe contacts Electric scalpel more with mucosal tissue to be performed the operation, and makes above-mentioned Electric scalpel also It can make to inject equipment use, above-mentioned pipe fitting 10 connects syringe 14, inner cavity 100, through hole 701 and the epitheca of the pipe fitting Tube cavity forms injection channel.Concrete operations are as follows: enable function of injection, it is preparatory that the far distance port of protection pipe 3 withstands mucosal tissue The small notch held successfully, connection syringe 14 injects liquid at pipe fitting 10, and liquid is through above-mentioned injection channel to defeated at small notch Liquid, implementing injection protuberance;Alternatively, if note can be used since there are blood or other dirts to stop the visual field in surgical procedure Emitter is sprayed out through above-mentioned injection channel from the nozzle of protection pipe 3 by 10 injecting normal saline of pipe fitting, physiological saline, Field range inner region is rinsed well.
When the connection of above-mentioned pipe fitting 10 is equipped with the gas source of inert gas, inner cavity 100, through hole 701 and the epitheca of pipe fitting Tube cavity forms gas passage, and Electric scalpel can be made to operate for coagulation.As shown in Figure 14, the present embodiment coagulating electrode 5 is one The structure of pin 502 is stretched out in section helical Bourdon tube 501, one end.Pin 502 stretches near above-mentioned protection pipe 3;Coagulating electrode 5 Adjacent with protection pipe 3, the two is spaced apart, and distance is in 0-50mm.Enable coagulation function when, handle 12 along handle set 7 to After pull, make snare ring 1 completely income outer sheath 4 in, snare ring 1 is contacted with coagulating electrode 5, energization connector 11 and high frequency electric source 13 connect, and pipe fitting 10 is connected with the air accumulator equipped with inert gas, and inert gas flows along gas passage and in coagulation electricity It is ionized at the pin 502 of pole 5, implements coagulation operation;This coagulation specifically: inert gas is ionized, and ionized gas is high Speed sprays to tissue surface and implements blood coagulation hemostasis.
For the leakproofness for realizing above-mentioned through hole, the liquid entered from pipe fitting 10 or gas is avoided to let out from handle set 7 Reveal, is equipped with the seal chamber communicated with the through hole 701, as shown in Figure 5, the sealing device 8 in the present embodiment in handle set 7 It is placed in seal chamber, sealing device 8 is formed side by side by multiple O-ring seals 19 in the present embodiment, and all sealing rings 19 pass through Briquetting 20 is located in seal chamber.Sealing device 8 is ensured the chamber of the inner cavity 100 of above-mentioned pipe fitting and setting energization connector 11 Road isolation, avoids air-liquid from revealing.Above-mentioned briquetting 20 is nonmetallic materials, passes through gluing, ultrasonic welding, riveting or the side of crimping Formula and the handle set 7 are fixed.Certain pressure, O-ring seals deformation, to being through at are applied to O-ring seals 19 by briquetting 20 The conduit 9 of its inner hole implements sealing.Due to the effect of sealing device 8, gas or liquid in the inner cavity 100 of pipe fitting will not be let out Leakage, only the gap between through hole 701, outer sheath 4 and traction rope 6 is distally flowed.
To be preferably oriented to, and convenient for having enough channels between star pipe 18 and outer sheath 4, make liquid or gas stream It crosses, the present embodiment protrusions mechanism is a plurality of raised line axially extending along star tube outer surface, as shown in Figure 8, between adjacent raised line Space can be used as the transfer passage of gas, liquid, enough channels can be such as reserved for inert gas, guarantee Electric scalpel electricity The normal use of solidifying function.Fig. 6,7 be star pipe 18 other specific embodiments.To make star pipe 18 and 6 stationary phase of traction rope Even, 18 both ends of star pipe use fixing piece 17 fixed in the present embodiment, prevent from moving, the connection of fixing piece 17 and traction rope 6 Mode is crimped, welds, is glued, is riveted.
1, snare ring in the present embodiment is as ring-type, to be formed by a stainless steel or titanium-nickel wire;Or for by one The silk that stainless steel adds niti material to be combined is formed.Alternatively, snare ring 1 is to be formed by multiply stainless steel or NiTi braided wires; Or it is formed for the braided wires for adding niti material to be combined by multiply stainless steel.Snare ring 1 must assure that be powered by long-time After cutting, as shown in Figure 4, the extension end 101 of snare ring cannot deform damage.Also, snare ring 1 must have certain Rigidity, is able to maintain stabilization when using as needle knife.The present embodiment centre circle lantern ring 1 passes through connecting tube 2 and above-mentioned 6 stationary phase of traction rope Even.
Star is managed by being made of PP, PTFE, PE or PA material, and this kind of material has certain rigidity and greasy property, is protected Use can be stablized under card thin-wall construction.
Above-mentioned Electric scalpel has mode used below, specifically:
Cutting mode, above-mentioned snare ring 1, traction rope 6, conduit 9, energization connector 11 and handle 12 form cutting unit, lead to Electric connection 11 is connected with high frequency electric source 13, and handle 12 is pushed along handle set 7 to distal end, drives snare by conduit 9, traction rope 6 Ring 1 is stretched out from the distal end of outer sheath 4 completely;Energization connector 11 is electrically connected with high frequency electric source 13, pulls back handle along handle set 7 12, snare ring 1 is gradually tightened, and implements cutting.
Coagulation mode, above-mentioned snare ring 1, traction rope 6, conduit 9, outer sheath 4, energization connector 11, pipe fitting 10 and handle 12 at coagulation unit, and pipe fitting 10 is connected with the air accumulator equipped with inert gas at this time, energization connector 11 and 13 phase of high frequency electric source Even, the inner cavity 100 of above-mentioned pipe fitting, through hole 701 and epitheca tube cavity form gas passage;When starting coagulation, handle is connected 12 pull back along handle set 7, as shown in Figure 3, make in the income outer sheath 4 completely of snare ring 1, snare ring 1 connects with coagulating electrode 5 Touching, energization connector 11 are electrically connected with high frequency electric source 13, and pipe fitting 10 and air accumulator are connected, and inert gas is flowed along above-mentioned gas channel It moves and is ionized at the pin of coagulating electrode 5 502, implement coagulation operation;This coagulation specifically: inert gas is ionized, Ionized gas is sprayed at a high speed tissue surface and implements blood coagulation hemostasis.
Edge cutting and coagulation mode, as shown in Figure 4, handle 12 pushes forward along handle set 7, and the part of snare ring 1 is stretched Outer sheath 4 out form the extension end 101 of " length is needle-shaped ", and energization connector 11 and high frequency electric source 13 are connected, by the extension end of snare ring 101 implement cut edge cutting and coagulation operation, this coagulation is: high temperature sintering tissue after the snare ring 1 of metal material is powered, real Apply blood coagulation hemostasis.
Injection pattern: above-mentioned protection pipe 3, outer sheath 4, handle set 12, sealing device 8, conduit 9 and the composition note of pipe fitting 10 Penetrate unit;When enabling function of injection, the taper port of protection pipe 3 is headed into the tissue of opening, and syringe is used at pipe fitting 10 14 injection liquid, implementing injection protuberance.
Rinse mode: above-mentioned protection pipe 3, outer sheath 4, handle set 12, sealing device 8, conduit 9 and the composition note of pipe fitting 10 Penetrate unit;When enabling function of injection, the port of protection pipe 3 is directed at the position that need to be rinsed, and uses 14 note of syringe at pipe fitting 10 Enter liquid, implements to rinse.
In use process, doctor is as needed, and excision extension label, injection protuberance, mucous membrane is selected to cut removing, hemostasis function Can when, by sliding of the driving handle 12 on handle set 7, the position of control loop lantern ring 1, power on as needed respectively, Gas source/syringe realizes above-mentioned function.
Another embodiment as Electric scalpel of the invention:
The direction of above-mentioned snare ring 1 is adjusted in the present embodiment when in use on the basis of the said structure, for convenience of doctor, sees Shown in Figure 14, it is equipped on handle set 7 around the runner 16 through axially bored line rotation, the conduit 9 is connected with runner 16, The conduit 9, traction rope 6 and the snare ring 1 rotation under the drive of runner 16.By being set in handle set 7 in the present embodiment Runner slot 702 is set, runner 16 can be accommodated, runner has the part except exposed runner slot, the rotatable runner realization pair of doctor The direction of snare ring 1 adjusts;The seal chamber 703 for accommodating above-mentioned sealing device 8 is equipped between runner slot 702 and through hole 701, The air-liquid entered through pipe fitting 10 is avoided to leak.Specifically: the proximal end face contact of runner distal face 162 and sealing device 8, and And runner distal face 162, not with 701 proximal end face contact of runner slot, sealing device 8 is formed by stacking by 1 or several sealing rings, on The depth for stating seal chamber 703 is less than the superposition height of all sealing rings.Since runner 16 is to all sealing ring continu to press, Sealing ring generates certain flexible deformation, sealing is generated to conduit 9 and through hole 701, thus in the luminal portion of pipe fitting Sealing is formed, guarantees that argon gas or injection do not leak toward the flowing of 4 distal direction of outer sheath.Runner proximal end face 161 is equipped with ring-type Groove can reduce the frictional force between runner and handle set.Specific rotational structure and rotation process, it is seen that Chinese patent It discloses a kind of rotary-type medical cutting and electric coagulation devices by CN105852964A.
In conclusion Electric scalpel of the invention, by conical nose, so that protection pipe head end is easy insertion tissue openings Middle carry out subsequent operation;By setting star pipe in traction rope fixed sleeves, traction rope is carried out by star pipe with this radial Overstriking makes its gap shrinks between outer sheath, improves traction rope in outer sheath inner shaft to mobile stability, also just improves Handle is made to stretch out close to when the movement of outer sheath, snare ring can be stablized from the other end of the outer sheath, it is ensured that in surgical procedure The stability of instrument improves operation safety.So the present invention effectively overcomes various shortcoming in the prior art and has height Value of industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.

Claims (14)

1. a kind of Electric scalpel characterized by comprising outer sheath, one end of outer sheath are equipped with handle set, handle set have with The through hole communicated in outer sheath and the pipe fitting laterally communicated with through hole;Handle, sliding is set on handle set, in handle It is equipped with energization connector;It is sequentially connected and conductive conduit, traction rope and snare ring, is threaded through in outer sheath;Conduit is through institute It states to be pierced by through hole and be connected with the energization connector on handle;When movement of the handle work close to or away from outer sheath, band Moving-coil lantern ring is from the stretching of the other end of the outer sheath or retraction outer sheath;It is set in the handle set for the conduit place of being pierced by There is the sealing device that will pass through hole sealing;Star pipe of the outer peripheral surface with protrusion means is arranged on the traction rope, and star is managed Both ends be fixedly linked with traction rope by fixing piece sealing, the maximum outside diameter of star pipe is less than the internal diameter of the outer sheath; Coagulating electrode is installed in the outer sheath on the inner wall of the other end of outer sheath, when can be in snare ring retraction outer sheath The coagulating electrode contact.
2. Electric scalpel according to claim 1, it is characterised in that: the other end of the outer sheath is inserted with protection pipe, The part that protection pipe exposes to outer sheath is conical section, and it is cylindrical section that protection pipe, which is located at the part in outer sheath,.
3. Electric scalpel according to claim 2, it is characterised in that: the maximum outside diameter of the protection pipe and the outer sheath Outer diameter it is identical.
4. Electric scalpel according to claim 2, it is characterised in that: the outer surface of the protection pipe is equipped with and the epitheca The protrusion of inside pipe wall tight fit.
5. Electric scalpel according to claim 2, it is characterised in that: the outer surface of the protection pipe is non-smooth surface.
6. Electric scalpel according to claim 2, it is characterised in that: the pipe fitting connects syringe, the pipe fitting Inner cavity, through hole and epitheca tube cavity form injection channel.
7. Electric scalpel according to claim 1, it is characterised in that: the pipe fitting connection is equipped with the gas of inert gas Source, inner cavity, through hole and the epitheca tube cavity of the pipe fitting form gas passage.
8. Electric scalpel according to claim 1, it is characterised in that: be equipped in the handle set and communicated with the through hole Seal chamber, the sealing device is placed in the seal chamber, and sealing device is formed side by side by multiple O-ring seals, and all Sealing ring is located in seal chamber by briquetting.
9. Electric scalpel according to claim 8, it is characterised in that: the briquetting is nonmetallic materials, by gluing, is surpassed The mode that sonic soldering connects, rivets or crimps is fixed with the handle set.
10. Electric scalpel according to claim 8, it is characterised in that: the protrusion means are a plurality of along star pipe The axially extending raised line in outer surface.
11. Electric scalpel according to claim 1, it is characterised in that: the handle set, which is equipped with, runs through hole axle around described The runner of line rotation, the conduit are connected with runner, and the conduit, traction rope and the snare ring turn under the drive of runner It is dynamic.
12. Electric scalpel according to claim 1, it is characterised in that: the snare ring is by a stainless steel or NiTi Silk is formed;Or it is formed for the silk for adding niti material to be combined by a stainless steel.
13. Electric scalpel according to claim 1, it is characterised in that: the snare ring is by multiply stainless steel or NiTi Braided wires are formed;Or it is formed for the braided wires for adding niti material to be combined by multiply stainless steel.
14. Electric scalpel according to claim 1, it is characterised in that: the star pipe is by PP, PTFE, PE or PA material Material is made.
CN201820947170.4U 2018-06-20 2018-06-20 Electric scalpel Active CN208958314U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110811814A (en) * 2019-10-31 2020-02-21 上海澳华光电内窥镜有限公司 Integrated multifunctional medical electric snare
CN114081615A (en) * 2020-10-21 2022-02-25 常州乐奥医疗科技股份有限公司 Novel medical electrotome and tool bit assembly thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110811814A (en) * 2019-10-31 2020-02-21 上海澳华光电内窥镜有限公司 Integrated multifunctional medical electric snare
CN114081615A (en) * 2020-10-21 2022-02-25 常州乐奥医疗科技股份有限公司 Novel medical electrotome and tool bit assembly thereof
CN114081615B (en) * 2020-10-21 2022-08-05 常州乐奥医疗科技股份有限公司 Novel medical electrotome and tool bit assembly thereof

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