CN211243673U - Low-temperature plasma scalpel - Google Patents

Abstract

The utility model discloses a low temperature plasma scalpel, including bearing the main part and setting up the electrode subassembly in bearing the main part, electrode subassembly including the working pole one that is located bearing main part distal end terminal surface and the working pole two that is located bearing main part distal end side, working pole one and two electricity of working pole be connected with the selection subassembly of selecting to switch between alternative mode, simultaneous mode. Low temperature plasma scalpel can be as required the working pole of free choice at different positions carry out the operation, can be convenient use in complicated, narrow and small operation environment, nimble adjustable, the low power dissipation, the operation precision is high, effectual, need not to change surgical instruments in the art, the operation is more convenient, efficiency, shortens operation time, sparingly the operation spending.

Description

Low-temperature plasma scalpel

Technical Field

The utility model relates to the technical field of surgical medical equipment, especially, relate to a low temperature plasma scalpel.

Background

The low-temperature plasma scalpel is produced by using a plasma generatorThe generated energy enables a highly concentrated plasma thin layer to be formed between the plasma cutter head and the tissue, the plasma in the thin layer is accelerated by an electric field, and the thin layer has enough energy to crush organic molecular chains in the tissue, so that the tissue is decomposed into simple molecules, atoms or low molecular weight gas, and the ablation cutting function is achieved. Since the current does not flow directly through the tissue, the tissue generates very little heat, so the treatment temperature is low (40-70 ℃), and the activity of the cells can be maintained. Meanwhile, due to the insulation effect of the plasma and the heat effect of the current, the blood vessel can be quickly contracted and solidified, and the function of hemostasis in the operation is realized. The plasma generated in physiological saline contains various active particles (electrons, ions, atoms, molecules, free radicals and the like in various excited states), which easily cause oxidation reaction of proteins and nucleic acid substances in bacteria, molds, spores and viruses to denature, kill various microorganisms or finally oxidize and degrade bacteria into CO and CO₂、H₂O, thereby realizing the function of sterilization in operation.

The low-temperature plasma scalpel is usually applied to minimally invasive surgery, and is mainly used for realizing accurate cutting and ablation of tissues and accurate intraoperative hemostasis, the working surface of the existing low-temperature plasma scalpel is single, or is arranged on the end face of the far end of a scalpel head main body or is arranged on the side face of the scalpel head main body, in a complex and narrow surgical environment, the single working surface is difficult to reach a target tissue, the flexibility and the applicability are poor, different types of plasma scalpels are required to be replaced to carry out surgical treatment on the target tissues at different positions, time and labor are wasted, and the surgical expenditure of patients is greatly increased.

SUMMERY OF THE UTILITY MODEL

As used herein, the term "proximal" refers to the end of the device or portion thereof that is closer to the user, and the term "distal" refers to the end of the device or portion thereof that is further from the user.

The utility model discloses the technical problem that will solve and the technical task that provides improve prior art, provide a low temperature plasma scalpel, the low temperature plasma scalpel working face of solving among the prior art is single, and nimble suitability is poor, needs the scalpel of changing the different grade type in the art, wastes time and energy, problem that the operation spending is big.

For solving the above technical problem, the technical scheme of the utility model is that:

a low-temperature plasma scalpel comprises a bearing main body and an electrode assembly arranged on the bearing main body, wherein the electrode assembly comprises a first working electrode and a second working electrode, the first working electrode is located on the far end face of the bearing main body, the second working electrode is located on the far end side face of the bearing main body, and the first working electrode and the second working electrode are electrically connected with a selection assembly for selecting and switching between one working mode and the same working mode.

The utility model discloses a low temperature plasma scalpel utilizes the working pole one, the working pole two that are in different positions to carry out the operation to the target tissue that is in different positions, the operation is more accurate, it is more convenient, one mode of operation is that only one of the working pole one, the working pole two is in operating condition, the working area is small and accurate, can be accurate to the target tissue cutting, melting, hemostasis, avoid causing the damage to non-target tissue, only the working pole one is worked, the low temperature plasma scalpel of back-and-forth movement along the direction from the near end to the far end of the bearing main body can be accurate to the target tissue that is in the direction of the far end face of the bearing main body carry out the operation, and only the working pole two is worked, the low temperature plasma scalpel of moving along the direction of the side of the bearing main body can be accurate to the target tissue that is in the direction of the far end side of the bearing main body, one of the working electrode I and the working electrode II does not work, so that the driving power consumption can be effectively reduced, and the energy is saved; meanwhile, the working mode is that the working electrode I and the working electrode II are in working states at the same time, the working area is large, cutting, ablation and hemostasis can be carried out on a large scale, and the working efficiency is high. The utility model discloses a select the subassembly freely to switch over the different demands of working condition come adaptation of working pole one, working pole two, and nimble suitability is good, and operation precision is high, effectual, need not to change surgical instruments in the art, and the operation is more convenient, efficiency, shortens the operation time, sparingly operates the spending.

Furthermore, the first working electrode and the second working electrode are of plate-shaped structures, plasmas generated by exciting during working of the first working electrode and the second working electrode are distributed along the surfaces of the first working electrode and the second working electrode, the plate-shaped structures enable the plasmas to be more uniform, the cutting and hemostasis effects are better, and the operation is more accurate.

Furthermore, the surface of the plate-shaped structure of the working electrode I and the working electrode II is provided with a plurality of through holes, so that plasma can be more easily excited and generated under lower energy, the plasma excitation is more uniform, and the driving power consumption is reduced.

Furthermore, the first working electrode and the second working electrode are fixed on the bearing main body through the metal wires penetrating through the through holes, the connection is convenient and stable, the stability of the first working electrode and the second working electrode is guaranteed, the falling-off condition of the first working electrode and the second working electrode is avoided, the metal wires are also used for realizing electric connection, and the electrosurgical energy is transmitted to the first working electrode and the second working electrode through the circuits electrically connected to the metal wires to perform the surgical operation of cutting, ablating and stopping bleeding on target tissues.

Furthermore, the bearing main body is further provided with a suction through pipe communicated from the near end to the far end, the suction through pipe is used for sucking high-temperature liquid to avoid the tissue from being damaged due to high temperature, the suction through pipe can also be used for sucking smoke generated in the operation, the smoke is prevented from blocking the operation visual field, and the accuracy of the operation is guaranteed.

Furthermore, the far end of the bearing main body is bent, so that the action surfaces of the working electrode I and the working electrode II and the length direction of the bearing main body have certain inclination angles, and accurate operation is conveniently performed on special positions.

Furthermore, the low-temperature plasma scalpel comprises a handle connected to the near end of the bearing main body, so that the low-temperature plasma scalpel is convenient to hold, and the stable and accurate operation is convenient.

Furthermore, the selection assembly is arranged on the handle, so that the working states of the working electrode I and the working electrode II can be switched conveniently, and the operation is convenient.

Furthermore, the electrode assembly further comprises a loop electrode which is electrically insulated and separated from the working electrode I and the working electrode II on the bearing main body through an insulating piece, the working electrode I and the working electrode II form a bipolar electrode structure with the loop electrode, current flows between the working electrode I and the working electrode II and the loop electrode, a negative plate is not needed, no current flows through a human body, and compared with the monopolar electrode structure, the electrode assembly has the advantages of higher operation precision and better reliability, can avoid the condition that the excised tissue is too shallow or too deep, has lower power consumption and smaller wound, and is favorable for postoperative recovery.

Furthermore, the insulating part is arranged at the far end of the metal pipe, the working electrode I and the working electrode II are fixed on the insulating part, the loop electrode plays a role of a current loop and a role of a bearing main body, the structure is simple and compact, the manufacture is convenient, the loop electrode, the working electrode I and the working electrode II form a bipolar electrode structure, and the loop electrode is a slender metal pipe and is convenient to bear the working electrode I and the working electrode II which extend into a narrow area to perform minimally invasive surgery accurately.

Furthermore, the metal tube in set up the suction siphunculus that extends to the distal end from its near-end, the insulating part on set up with the suction hole that the suction siphunculus communicates, the high temperature liquid of usable suction siphunculus suction during operation avoids the tissue to be impaired because of the high temperature, also can utilize the suction siphunculus to aspirate out the smog that the operation produced, avoids smog to block the operation field of vision, ensures the accuracy nature of operation.

Compared with the prior art, the utility model discloses the advantage lies in:

the low-temperature plasma scalpel can freely select working electrodes at different positions to perform operation as required, can be conveniently applied to complex and narrow operation environments, is flexible and adjustable, has low power consumption, ensures that the operation can be accurately performed on tissues at special positions, has high operation precision and good effect, does not need to replace surgical instruments in the operation, is more convenient and efficient in operation, shortens the operation time and saves the operation expenditure;

the working electrode with the plate-shaped structure can excite plasma more uniformly, has better cutting and hemostasis effects and is more accurate in operation.

Drawings

Fig. 1 is a schematic overall structure diagram of a low-temperature plasma scalpel according to the first embodiment;

FIG. 2 is a schematic diagram of detail A in FIG. 1;

FIG. 3 is a cross-sectional view of the distal end of the carrier body according to the first embodiment;

FIG. 4 is a schematic view of an insulating member according to the first embodiment;

FIG. 5 is a schematic diagram of the working electrode one in operation and the working electrode two in non-operation;

FIG. 6 is a schematic diagram of the working electrode I not working and the working electrode II working;

FIG. 7 is a schematic diagram of the working electrode I and the working electrode II working simultaneously;

FIG. 8 is a schematic view of an electrical connection structure of the electrode assembly;

FIG. 9 is a schematic diagram showing the state of the selection assembly when the working electrode one is working and the working electrode two is not working;

FIG. 10 is a schematic diagram showing the states of the selection components when the working electrode I and the working electrode II are simultaneously operated;

FIG. 11 is a cross-sectional view of the distal end of the carrier body according to the second embodiment;

FIG. 12 is a cross-sectional view of the distal end of the carrier body according to the third embodiment;

FIG. 13 is a schematic diagram of another embodiment of a selection assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model discloses a low temperature plasma scalpel and surgical device can carry out the operation to the working pole of the nimble different positions of selection department of target tissue, and the operation is more accurate, convenient, need not to change the apparatus in the art, and labour saving and time saving saves the spending of performing the operation.

Example one

As shown in fig. 1 to 10, a low-temperature plasma scalpel mainly comprises an electrode assembly, wherein the electrode assembly adopts a bipolar electrode structure and comprises a first working electrode 1, a second working electrode 2 and a return electrode 3, the first working electrode 1 and the second working electrode 2 are independent from each other, and the first working electrode 1, the second working electrode 2 and the return electrode 3 respectively form a bipolar electrode return circuit;

in this embodiment, the loop electrode 3 is a metal pipe, preferably a stainless steel pipe, the stainless steel pipe is sheathed with an insulating layer 31, the insulating layer 31 may preferably be a heat-shrinkable sleeve, and the distal end of the stainless steel pipe is provided with an exposed section;

the far end of a loop pole 3 of a stainless steel tube is connected with an insulating part 4, the loop pole 3 and the insulating part 4 are combined to form a bearing main body 5, a working pole I1 and a working pole II 2 are fixed on the insulating part 4, namely the working pole I1 and the working pole II 2 are arranged at the far end of the bearing main body, specifically, the working pole I1 is arranged at the far end face of the insulating part 4, the working pole II 2 is arranged at the far end side face of the insulating part 4, and the working pole I1 and the working pole II 2 are electrically insulated and separated from the loop pole 3 by the insulating part 4, so that when the low-temperature plasma scalpel works, plasmas are stably excited on the working pole I1 and the working pole II 2 to cut, ablate and stop bleeding of target tissues;

in this embodiment, as shown in fig. 2, the working electrode one 1 and the working electrode two 2 are plate-shaped structures, which can excite plasma more uniformly, and preferably are plate-shaped structures, and the surfaces of the plate-shaped structures of the working electrode one 1 and the working electrode two 2 are provided with a plurality of through holes 11, which can excite plasma more easily at lower energy;

as shown in fig. 4, a fixing hole 41 is formed in the insulating member 4, the metal wire 6 penetrates through the through holes 11 of the first working electrode 1 and the second working electrode 2 respectively and then penetrates into the fixing hole 41 to fix the first working electrode 1 and the second working electrode 2 on the insulating member 4, four fixing holes 41 are formed in the distal end face of the insulating member 4 and the distal end side face of the insulating member 4 respectively, and the first working electrode 1 and the second working electrode 2 are fixed on the insulating member 4 through two metal wires 6 respectively;

the metal wire 6 is a high-performance metal wire, the metal wire 6 is used for being connected with a power supply circuit to transmit electrosurgical energy to the working electrode I1 and the working electrode II 2, and the metal wire 6 has double functions;

the return circuit utmost point 3 of stainless steel pipe is provided with in and extends to the suction siphunculus 7 of distal end from its near-end, insulating part 4 on set up the suction hole 42 with suction siphunculus 7 intercommunication, suction hole 42 can set up and also can set up the distal end side at insulating part 4 at the distal end terminal surface of insulating part 4, the high temperature liquid when usable suction siphunculus suction surgery avoids the tissue to be impaired because of the high temperature, also can utilize the suction siphunculus to aspirate out the smog that the operation produced, avoids smog to block the operation field of vision.

The working electrode one 1 and the working electrode two 2 work independently and can be freely selected and switched to adapt to different operation requirements, and three working modes are provided, as shown in fig. 5 to 7, the first working mode is that the working electrode one 1 works and the working electrode two 2 does not work; the second type is that the working electrode I1 does not work and the working electrode II 2 works; the third mode is that the working electrode I1 and the working electrode II 2 work simultaneously, the first two modes are one working mode, and the third mode is a simultaneous working mode. In order to realize free switching rotation of the working modes, the working electrode I1 and the working electrode II 2 are electrically connected with a selection component 8 for selecting and switching between one working mode and the same working mode, the selection component 8 is electrically connected with a power supply working electrode of the electrosurgical energy platform, and the working modes are switched by operating the selection component 8;

specifically, as shown in fig. 9 and 10, the selection component 8 (i.e., preferably, a toggle switch) includes a shifting block 81 moving between three working positions, and in the first working position, the shifting block 81 connects the working electrode one 1 and the power supply cable, and at this time, the working electrode one 1 works and the working electrode two does not work; in the second working position, the shifting block 81 simultaneously conducts the working electrode I1 and the working electrode II 2 with the power supply cable, and the working electrode I1 and the working electrode II 2 simultaneously work; the poking block piece 81 is used for conducting the working electrode II 2 and the power supply cable in the third position, the working electrode I1 does not work at the moment, the working electrode II 2 does not work, the working state of the working electrode I1 and the working electrode II 2 is switched by poking the poking block piece 81, and the operation is simple and convenient.

In this embodiment, the 3 near-ends in the return circuit of nonrust steel pipe are connected with handle 9, conveniently grip low temperature plasma scalpel and carry out the accurate operation, select subassembly 8 to set up on the handle, it is more convenient to operate, power supply cable spare has been set up on handle 9, as shown in fig. 3 and 8, the return circuit utmost point 3 of nonrust steel pipe is connected with one utmost point of power supply cable, the working pole is one 1, the circuit that line was walked through along nonrust steel pipe inside to working pole two 2 is connected with select subassembly 8, select subassembly 8 is connected with another utmost point of power supply cable again, still set up the suction pipe fitting with suction siphunculus 7 intercommunication on the handle 9.

The loop pole 3 is made of a slender stainless steel pipe, and the far end of the loop pole is provided with a bend, so that the action surfaces of the working pole I1 and the working pole II 2 and the length direction of the bearing main body 5 have a certain inclination angle, and the precise operation on a special position is facilitated.

Example two

As shown in fig. 11, the low-temperature plasma scalpel comprises a bearing main body 5 and an electrode assembly disposed on the bearing main body 5, the bearing main body 5 is of an elongated structure as a whole, the electrode assembly includes a first working electrode 1 located on a distal end surface of the bearing main body 5 and a second working electrode 2 located on a distal side surface of the bearing main body 5, the electrode assembly further includes a return electrode 3 disposed on a distal end of the bearing main body 5, the return electrode 3 is adjacent to the first working electrode 1 and the second working electrode 2, and the return electrode 3 is electrically insulated from the first working electrode 1 and the second working electrode 2 by an insulating member 4, and the first working electrode 1 and the second working electrode 2 respectively form a bipolar electrode structure with the return electrode 3;

in this embodiment, the working electrode one 1 and the working electrode two 2 are plate-shaped structures, which can excite plasma more uniformly, and preferably are plate-shaped structures, and the surfaces of the plate-shaped structures of the working electrode one 1 and the working electrode two 2 are provided with a plurality of through holes 11, which can excite plasma more easily at lower energy;

the working electrode I1 and the working electrode II 2 are respectively fixed on the bearing main body 5 through metal wires 6 penetrating through the through holes 11, the metal wires 6 are high-performance metal wires, and the metal wires 6 are used for being connected with a power supply circuit to transmit electrosurgical energy to the working electrode I1 and the working electrode II 2;

the working electrode one 1 and the working electrode two 2 are electrically connected with a selection component 8 for selecting and switching between a working mode and a simultaneous working mode, specifically, as shown in fig. 9 and fig. 10, the selection component 8 includes a shifting block 81 moving between three working positions, when the shifting block 81 is in the first working position, the working electrode one 1 and the power supply cable are conducted, and at this time, the working electrode one 1 works and the working electrode two does not work; in the second working position, the shifting block 81 simultaneously conducts the working electrode I1 and the working electrode II 2 with the power supply cable, and the working electrode I1 and the working electrode II 2 simultaneously work; the poking block piece 81 is used for conducting the working electrode II 2 and the power supply cable in the third position, the working electrode I1 does not work at the moment, the working electrode II 2 does not work, the working state of the working electrode I1 and the working electrode II 2 is switched by poking the poking block piece 81, and the operation is simple and convenient.

The bearing main body 5 is hollow and is internally provided with a suction through pipe 7 which extends from the near end to the far end, high-temperature liquid in the operation can be sucked out by the suction through pipe to avoid the damage of the tissue caused by high temperature, and smoke generated in the operation can be sucked out by the suction through pipe to avoid the smoke from blocking the operation visual field;

be connected with handle 9 at the near-end that bears main part 5, conveniently grip low temperature plasma scalpel and carry out the accurate operation, select subassembly 8 to set up on the handle, it is more convenient to operate, power supply cable spare has been set up on handle 9, the return circuit utmost point 3 is connected with one utmost point of power supply cable through the circuit along bearing the inside extension of main part 5, working pole one 1, working pole two 2 is connected with select subassembly 8 through the circuit along bearing the inside extension of main part 5, select subassembly 8 is connected with another utmost point of power supply cable again, handle 9 has still set up the suction pipe fitting with suction siphunculus 7 intercommunication.

EXAMPLE III

As shown in fig. 12, the difference from the second embodiment is that the electrode assembly includes only the first working electrode 1 located on the distal end surface of the carrier body 5 and the second working electrode 2 located on the distal side surface of the carrier body 5, the electrode assembly does not include a return electrode, and a monopolar electrode structure is adopted, so that when a low-temperature plasma scalpel is used for performing surgery, a negative plate is provided on a human body, and the working states of the first working electrode 1 and the second working electrode 2 are switched by controlling the selection assembly 8, and thus, precise surgery can be performed in a complicated and narrow surgical environment.

Example four

On the basis of the first to third embodiments, the selection component 8 may also adopt other structural forms, for example, as shown in fig. 13, the selection component 8 includes a first switch 82 and a second switch 83 for controlling on/off, the first switch 82 is disposed on a line where the first working electrode 1 is electrically conducted with the power supply cable, the second switch 83 is disposed on a line where the second working electrode 2 is electrically conducted with the power supply cable, the first switch 82 and the second switch 83 are respectively controlled to switch the working states of the first working electrode 1 and the second working electrode 2, and when the first switch 82 is conducted and the second switch 83 is cut off, the first working electrode 1 is operated and the second working electrode 2 is not operated; when the first switch 82 is turned off and the second switch 83 is turned on, the first working electrode 1 does not work and the second working electrode 2 works; when both the first switch 82 and the second switch 83 are turned on, the first working electrode 1 and the second working electrode 2 operate simultaneously. Simple structure, switching control is convenient, and the operating condition of the switching working pole one 1 and the working pole two 2 that the same guarantee can be nimble comes the nimble operation of performing the operation to the tissue of different positions, and the operation precision is high, effectual, need not to change surgical instruments in the art, shortens the operation time, saves the operation spending.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (10)

1. The utility model provides a low temperature plasma scalpel, characterized in that includes and bears main part (5) and sets up the electrode subassembly on bearing main part (5), the electrode subassembly include be located the distal end of bearing main part (5) working pole one (1) and be located the distal end of bearing main part (5) working pole two (2), working pole one (1) and working pole two (2) electricity be connected with select subassembly (8) that select to switch between an operating mode, operating mode simultaneously.

2. The cryoplasma scalpel according to claim 1, wherein the first and second working electrodes (1, 2) are plate-shaped.

3. The low-temperature plasma scalpel according to claim 2, wherein the plate-shaped structures of the first working electrode (1) and the second working electrode (2) are provided with a plurality of through holes (11) on the surfaces.

4. A cryoplasma scalpel according to claim 3, wherein the first and second electrodes (1, 2) are fixed to the carrier body (5) by wires (6) passing through the through holes (11).

5. A cryoplasma scalpel according to claim 1, wherein said carrier body (5) is further provided with a suction tube (7) leading from its proximal end to its distal end.

6. Cryogenic plasma scalpel according to claim 1, characterised in that the distal end of the carrier body (5) is curved.

7. A cryogenic plasma scalpel according to claim 1, further comprising a handle (9) attached to the proximal end of the carrier body (5).

8. Cryogenic plasma scalpel according to claim 7, characterised in that the selection assembly (8) is arranged on the handle (9).

9. A cryogenic plasma scalpel according to any one of claims 1 to 8, the electrode assembly further comprising a return pole (3) electrically insulated from the first and second working poles (1, 2) by an insulator (4) on the carrier body (5).

10. The low-temperature plasma scalpel according to claim 9, wherein the return electrode (3) is a metal tube, the insulator (4) is arranged at the far end of the metal tube, and the first working electrode (1) and the second working electrode (2) are fixed on the insulator (4).

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