CN203634285U

CN203634285U - Electrotome with fluid absorbing function and replaceable electrotome head

Info

Publication number: CN203634285U
Application number: CN201320829792.4U
Authority: CN
Inventors: 杨倍
Original assignee: Shanghai Pulmonary Hospital
Current assignee: Shanghai Pulmonary Hospital
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-06-11
Anticipated expiration: 2023-12-16

Abstract

The utility model discloses an electrotome with a fluid absorbing function and a replaceable electrotome head. The electrotome comprises an electrotome core, the electrotome head and an electrotome handle. The electrotome core is electrically connected with the corresponding output end of an external high-frequency generator through an electrocoagulation switch and an electric cutting switch. The electrotome core is a hollow electrotome core, a fluid guiding channel is formed in the hollow electrotome core, a plurality of fluid absorbing holes are formed in the peripheral face of the work end of the electrotome core, and the tail end of the electrotome core is provided with a fluid outlet. The fluid outlet is connected with a negative pressure fluid absorber, and the electrotome head is connected with the work end of the electrotome core through threads, so that different electrotome heads can be replaced for different surgical parts. The fluid absorbing holes are divided into two circles to be formed in the peripheral face of the work end of the electrotome core in an up and down mode, the lower circle of fluid absorbing holes are oblique downwards, and the upper circle of fluid absorbing holes are oblique upwards. The electrotome is simple in structure and high in operability, the fluid absorbing holes in the cutting end of the electrotome core can be used for absorbing operation fluid to the negative pressure absorber, an aspirator is not needed in the operation process, and surgical risks are reduced.

Description

One has liquid suction function and the removable electric knife of cutter head

Technical field

This utility model relates to medical device field, and particularly one has liquid suction function and the removable electric knife of cutter head.

Background technology

Shell is performed the operation as after the parenchymal viscera Partial Resections such as pulmonary, all needs the processing of stopping blooding of organ end face.At present, to the way of organ section hemostasis tie, ultrasound knife technology, radio-frequency technique, high frequency electric etc., these methods all relate to blood capillary and little blood vessel sealing technique, wherein tie and belong to physical technique sealing, can only process point-like active hemorrhage.Ultrasound knife chorista effect is better, does not have the function to wound surface blood coagulation, and expensive.The principle of radio-frequency technique is by ion and polar molecule (as hydrone) in radio-frequency current (460～500kHz) exciting electrode surrounding tissue, make its vibration and friction at a high speed, then be converted into heat energy, within the extremely short time, produce the high temperature of 80 ℃～100 ℃, thereby histone is solidified or necrocytosis, the advantage of radio frequency knife is that tissue coagulation thickness is fine, but radio frequency itself does not possess the function of chorista, need be by other technology chorista, and expensive, greatly improve surgery cost.High frequency electric method heats destination organization by produce high frequency electric between electrode and tissue, dry to produce, vaporization and the process of carbonization, make histone coagulation, the method is most widely used hemostatic technique clinically at present, it comprises common metal electric knife and argon-gas knife, the electric knife of ordinary skill electric knife connects an outfan of external high frequency generator, human body connects another outfan of external high frequency generator, by produce high frequency electric between electric knife and tissue, destination organization is heated, dry to produce, vaporization and the process of carbonization, the temperature that coagulation produces is higher, often make wound tissue eschar, being covered in tissue surface by eschar stops blooding, shortcoming is that blood coagulation effect is bad, during to bleeding tissue petechia blood coagulation faster, eschar stops conduction after reaching certain thickness, eschar thickness possibly cannot closely cover bleeding tissue, in hemostasis, produce smog can be harmful to patient and medical worker simultaneously.

At present existing a kind of Multifunctional electrotome can have the function that attracts waste gas simultaneously, due to ordinary skill electric knife low price, is still at present the most general operation separation and the hemostatic device of use clinically; Argon-gas knife is to utilize argon as conducting medium, in operation, can reduce wound surface temperature, reduce the oxidation, carbonization (smolder, eschar) of damaged tissue, therefore eschar effect is better than common electric knife, but because eschar thickness is thinner compared with metal electric knife, therefore better to the chronic oozing of blood effect of large area, poor to active hemorrhage effect, and argon-gas knife needs special main process equipment and argon, expensive.

For this reason Chinese patent Granted publication CN202060865 one is disclosed can water guidance electric knife, it comprises electric knife core, electric knife core difference coagulation switch and TURP switch are electrically connected with the corresponding outfan of external high frequency generator, electric knife core inner hollow, upper end is communicated with the outside transfusion device for feedwater liquid, the electric knife core head of electric knife core is arranged to hollow, for water guide, and at head, opening is set, for infiltration, at the waste heat of taking away generation when organizing coagulation by the evaporation of infiltration, thereby produce and conduction is no more than the temperature of 100 degree at tissue surface, solve the bad problem of blood coagulation effect that existing ordinary skill electric knife is excessive due to electric coagulation hemostasis carbonization and/or carbonization thickness low LCL exists, compare with radio frequency knife with expensive ultrasound knife equipment, simple in structure, cost is low.

Chinese patent Granted publication CN101390775 discloses the electric knife handle of a kind of power for illumination handle of a knife and attraction electrotome, negative pressure straw, negative pressure pump, the electric knife handle of one hollow, in electric knife handle or be provided with the power circuit of electric knife in electric knife handle wall, the afterbody of electric knife handle is provided with suction port, one conduction blank pipe has hollow channel, its rear end is arranged at the inside, front of electric knife handle, the conduction rear end of blank pipe and the power circuit of electric knife are connected, its front end protrudes outside electric knife handle, and the front end of conduction blank pipe forms forward apicule end suction inlet.The electric knife of this patent all siphons away continual the smog producing in operation, during for the operation of narrow and small profound region, electric knife can deeply be entered the smog producing and the other liquid impurity of electric knife etc., not only can exhaust in time, and can be discharged in outdoor kettle disinfector, can not cause the obstruction of negative pressure straw, negative pressure pump; For the field of operation of narrow and small dark area, the illuminating lamp on electric knife, also can facilitate and be irradiated to clearly.Can conveniently take apart and change sterilization electric knife head, electric knife handle, negative pressure pump, and can change easily filter screen, filter.

Although clean the problem of smog and impurity when above-mentioned patent has solved operation, because the hollow space of electric knife head and electric knife is one, be inhaled into like this that liquid impurity in the hollow space of electric knife is difficult to rinse and sterilization is clean, the next use of impact.Moreover the inlet hole of electric knife head is the head that is positioned at electric knife head substantially, have influence on suction effect.

Utility model content

Technical problem to be solved in the utility model is for shortcomings and deficiencies of the prior art, provides one to have liquid suction function and the removable electric knife of cutter head, to address the above problem.

The technical problem that this utility model solves can realize by the following technical solutions:

One has liquid suction function and the removable electric knife of cutter head, comprise electric knife core, electric knife head and the electric knife handle that is coated on described electric knife core periphery, electric knife core is electrically connected with the corresponding outfan of external high frequency generator by coagulation switch and TURP switch respectively, described electric knife core is hollow electric knife core, liquid passage is drawn in the inner formation one of hollow of hollow electric knife core, on the working end outer peripheral face of described electric knife core, be provided with some imbibing holes, the tail end of described electric knife core has a liquid outlet, described liquid outlet is connected with a negative liquid suction device, it is characterized in that described electric knife head is threaded with the working end of described electric knife core, so that change different electric knife heads for different operative segments, some imbibing holes are divided into two and enclose on the upper and lower working end outer peripheral face that is arranged on electric knife core, and wherein below the imbibing hole of a circle is downward-sloping, above the imbibing hole of a circle be inclined upwardly.

Owing to having adopted technical scheme as above, electric knife head of the present utility model adopts engage thread to be connected with the working end of electric knife core, and the one, while cleaning, conveniently electric knife head is taken off, can clean more neatly electric knife core; The 2nd, can change different electric knife heads for different operative sites.Washing liquid hole on electric knife core of the present utility model is divided into upper and lower two circles in addition, and upper and lower two circle washing liquid holes have a down dip upward respectively, washing liquid scope is large like this, washing liquid is effective.

Accompanying drawing explanation

In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the axial section schematic diagram of a kind of electric knife with liquid suction function of this utility model.

The specific embodiment

For technological means, creation characteristic that this utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth this utility model.

Shown in Figure 1, one has liquid suction function and the removable electric knife of cutter head, comprise electric knife core 100, electric knife head 300 and the electric knife handle 200 that is coated on electric knife core 100 peripheries, electric knife core 100 is electrically connected (not shown) by coagulation switch and TURP switch with the corresponding outfan of external high frequency generator respectively, electric knife core 100 is hollow electric knife core, liquid passage 110 is drawn in the inner formation one of hollow of hollow electric knife core, if be provided with on working end 120 outer peripheral faces of electric knife core 100, lower two circle imbibing hole 121a, 121b, the imbibing hole 121b of a circle is downward-sloping below, the imbibing hole 121a of a circle is inclined upwardly above.The tail end of electric knife core 100 has a liquid outlet 130, and liquid outlet 130 is connected with a negative liquid suction device, and electric knife head 300 is threaded with the working end 120 of electric knife core 100, so that change different electric knife heads for different operative segments

This utility model is simple in structure, and strong operability can be drawn to negative liquid suction device by art liquid by the imbibing hole 121 in the work cut end 120 of electric knife core 100, has avoided using suction pump in operation process, reduces operation risk.

More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed this utility model.The claimed scope of this utility model is defined by appending claims and equivalent thereof.

Claims

1. one kind has liquid suction function and the removable electric knife of cutter head, comprise electric knife core, electric knife head and the electric knife handle that is coated on described electric knife core periphery, electric knife core is electrically connected with the corresponding outfan of external high frequency generator by coagulation switch and TURP switch respectively, described electric knife core is hollow electric knife core, liquid passage is drawn in the inner formation one of hollow of hollow electric knife core, on the working end outer peripheral face of described electric knife core, be provided with some imbibing holes, the tail end of described electric knife core has a liquid outlet, described liquid outlet is connected with a negative liquid suction device, it is characterized in that described electric knife head is threaded with the working end of described electric knife core, so that change different electric knife heads for different operative segments, some imbibing holes are divided into two and enclose on the upper and lower working end outer peripheral face that is arranged on electric knife core, and wherein below the imbibing hole of a circle is downward-sloping, above the imbibing hole of a circle be inclined upwardly.