KR20200055535A - Electrosurgical instrument - Google Patents

Abstract

Provided is an electrosurgical instrument. According to one embodiment of the present invention, the electrosurgical instrument is used in electrosurgery, and comprises: a handpiece having a predetermined length and provided with an accommodation space therein; a cable coupled to the rear of the handpiece in a longitudinal direction and transferring electrical energy; a slider coupled to the handpiece and moving along the longitudinal direction of the handpiece; an operation rod including a rotator coupled to the slider to be able to rotate in both directions with respect to a moving axis for forming a moving path of the slider and a conductive electrode of which at least a part protrudes towards the front of the handpiece; and a connection body provided in the accommodation space, and including a conductor electrically connecting the cable with the conductive electrode and nonconductive films coupled to both sides of the conductor to shield the same, wherein at least a part of the connection body is made of a flexible printed circuit board (FPCB) to be formed in a spiral or helical shape such that the entire length of the connection body varies. According to the present invention, the electrosurgical instrument is able to rotate in both directions within a predetermined angle range.

Description

Electrosurgical Instruments {ELECTROSURGICAL INSTRUMENT}

The present invention relates to an electrosurgical instrument, and more particularly, to an electrosurgical instrument that cuts, excises or cauterizes tissue using electrical energy, particularly high frequency electrical energy.

Electrosurgery is a surgical method in which a patient's tissue is incised, excised and / or cauterized using high frequency, radio frequency electrical energy.

Intracellular vibrations are generated by the electrical energy supplied through the electrodes, and accordingly, the intracellular temperature rises and the tissue is heated. When the intracellular temperature reaches about 60 ℃, cell death occurs, and when heated to 60 ~ 99 ℃, tissue drying (dehydration) and protein coagulation proceed, and when the intracellular temperature reaches 100 ℃, cell expansion and vaporization And incision or cauterization of tissue in this process.

The electrosurgical device includes an electrosurgical unit and a handpiece, and the electric circuit used therein can be made of monopolar or bipolar.

In connection with such an electrosurgical device, Korean Patent Registration No. 10-1576730 discloses a "handpiece for an electrosurgical device and an electrosurgical device including the same", and Korean Patent Publication No. 10-2017-0135823 discloses a "taper formed. Precision blade electrosurgical apparatus "and US Patent No. 8177783 discloses" Electric plasma-mediated cutting and coagulation of tissue and surgical apparatus. "

As shown in the prior art, in the case of a monopolar electrosurgical device, a conductive electrode (cutting tip, blade) is coupled to the front of the handpiece (the part held by the user), and the high-frequency electrical energy transferred to the electrode The surgery is performed, in particular, the incision of the tissue is made by the edge portion of the electrode having a flat and long plate shape.

And for ease of surgery, electrodes made of various types have been proposed, and furthermore, there is a need for an electrosurgical device capable of varying / adjusting the position and direction of electrodes (cutting tips, blades) against a handpiece.

(0001) Korean Registered Patent No. 10-1576730 (Registration Date: 2015.12.04) (0002) Republic of Korea Patent No. 10-2017-0135823 (Publication date: 2017.12.08) (0003) U.S. Patent No. 8177783 (Registration Date: May 15, 2012)

The problem to be solved by the present invention is to provide an electrosurgical instrument for cutting, resecting or cauterizing tissue using electrical energy. In particular, the position and orientation of a conductive electrode (cutting tip, blade) against a handpiece is variable or It is to provide an electrosurgical instrument that can be adjusted while being capable of stable operation and convenient use.

In addition, the problem to be solved by the present invention is to provide an electrosurgical mechanism capable of maintaining a predictable deformation state without disturbing the overall shape and structure of the connector in a process in which the position and direction of the conductive electrode are varied.

In addition, the problem to be solved by the present invention is to provide an electrosurgical mechanism capable of bidirectional rotation in a predetermined angle range without generating unnecessary friction when rotating the operating rod.

In addition, the problem to be solved by the present invention is to provide an electrosurgical instrument capable of increasing the tolerance range of the outer diameter of the working rod and fixing the working rod after fixing the working rod after changing the position and direction of the conductive electrode. .

In order to achieve the above object, an electrosurgical instrument according to an embodiment of the present invention is an electrosurgical instrument used for electrosurgery, a handpiece having a predetermined length and having an accommodation space therein; A cable coupled to the rear of the handpiece in the longitudinal direction to transmit electrical energy; A slider coupled to the handpiece and moving along the longitudinal direction of the handpiece; A working rod including a rotator coupled to the slider and a conductive electrode at least partially protruding toward the front of the handpiece so as to be rotatable in both directions around a moving axis constituting a movement path of the slider; And a film provided in the accommodating space, a conductor electrically connecting the cable and the conductive electrode, and a non-conductive film coupled to both sides of the conductor so that the conductor is shielded, and at least a part of the flexible circuit board (Flexible Printed) Circuit Board, FPCB), and consists of a spiral type or a helical type, and includes a connector whose entire length is variable.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, one of the slider and the rotator is formed with a spiral screw bone and the other is formed with a rotating protrusion inserted into the screw bone, the length of the screw bone is the slider Based on the maximum rotation angle of the operating rod can be made to be limited to any angle greater than 0 ° 450 ° or less. In addition, the maximum rotation angle of the operating rod based on the slider may be made to be limited to an arbitrary angle in the range of 360 to 450 °.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, one of the handpiece and the slider is formed with a slide groove parallel to the moving axis, and the other is inserted into the slide groove and parallel to the moving axis. A slide projection moving to may be formed.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, the slider is formed in a cylindrical shape penetrated in the front-rear direction, and a slide groove parallel to the moving axis is formed on one of the inner circumferential surface of the handpiece and the outer circumferential surface of the slider. And the other is inserted into the slide groove is formed a slide projection that moves in a direction parallel to the movement axis, the rotator is inserted into the slider and screwed with the slider, the front end of the connector is the rotator It can be coupled to the rear end.

In addition, in order to achieve the above object, an electrosurgical instrument according to an embodiment of the present invention is an electrosurgical instrument used for electrosurgery, a handpiece having a predetermined length and having an accommodation space therein; A cable coupled to the rear of the handpiece in the longitudinal direction to transmit electrical energy; A sliding rotator coupled to the handpiece coupled to the handpiece so as to move along the longitudinal direction of the handpiece and rotate in both directions around a moving axis forming a movement path, and at least a portion of the handpiece protruding toward the front of the handpiece A working rod comprising an electrode; And a film provided in the accommodating space, a conductor electrically connecting the cable and the conductive electrode, and a non-conductive film coupled to both sides of the conductor so that the conductor is shielded, and at least a part of the flexible circuit board (Flexible Printed) Circuit Board, FPCB), and consists of a spiral type or a helical type, and includes a connector whose entire length is variable.

In addition, the electrosurgical instrument according to an embodiment of the present invention is formed in a pipe shape surrounding a part of the outer circumferential surface of the operating rod, a collet having a first deformed hole which is a hole penetrated along the circumferential direction; And it is rotatably coupled to the outer peripheral surface of the front end of the handpiece, and includes a fixing nut for pressing the collet to the rear when rotating, the collet is bent in the first deformation hole portion when pressed by the fixing nut, As the inner circumferential surface is in close contact with the outer circumferential surface of the operating rod, frictional force may be generated or increased.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, the collet, a collet protrusion protruding forward from the side where the first deformed hole is formed in the front end rim to contact the fixing nut; And a second deformed hole that is a hole penetrated along the circumferential direction and is provided on the opposite side of the circumferential surface on which the first deformed hole is formed.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, the handpiece includes a front sleeve into which the collet is inserted so that the collet protrusion is exposed forward, and a concave fixing groove is formed on an outer circumferential surface of the front sleeve. The fixed groove is divided into a first groove, a second groove spaced in the circumferential direction from the first groove, and located behind the first groove, and a third groove connecting the first groove and the second groove, The fixing nut protrudes inward from the inner circumferential surface and is inserted into the first groove, and the fixing protrusion movable along a path formed by the first groove, the second groove, and the third groove; And a pressing jaw protruding inward from the front side of the fixing protrusion to press the collet protrusion.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, the connection body is coupled to the cable side, the rear terminal portion of which the terminal is exposed on one surface; A front terminal portion coupled to the working rod side and having a terminal exposed on one surface; And a deformable portion in which a nonconductive film is coupled to both sides so as to electrically connect the rear terminal portion and the front terminal portion by a first conductor, and to shield the first conductor in the center, wherein the deformable portion is formed in a spiral shape and is flexible. It can be made to have (flexibility) and elasticity (elasticity).

In addition, in the electrosurgical instrument according to an embodiment of the present invention, the deformed portion, the diameter of the spiral becomes smaller as it goes toward the front terminal portion from the rear terminal portion, and the deformed portions overlap each other in a state that is not elastically deformed, and the rear portion When the terminal portion, the front terminal portion and the deformed portion are extended to form the same plane, when the longitudinal direction of the deformed portion is referred to as the first direction, the rear terminal portion and the front terminal portion are bent or bent in the first direction, but facing each other in the opposite direction. Made, the deformation portion, 50 ~ 200㎛ thickness, 3 ~ 15㎜ in width, 150 ~ 400㎜ in length, the number of spirally wound can be made 10 to 25 times.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, the deformation portion, the first conductor made of an electrolytic copper foil (Eletrolytic Cu) or rolled copper foil (Rolled annealed Cu); Consists of a polyimide (Polyimide, PI) or polyester (polyethyleneterephthalate, PET), including a first insulating film and a first cover film coupled to both sides around the first conductor, the rear terminal portion, electrolytic copper foil or rolled copper foil A second conductor consisting of; A second insulating film and a second cover film made of polyimide or polyester and coupled to both sides around the second conductor; A first reinforcing film made of polyimide, glass epoxy or polyester and coupled to the second insulating film; And a first terminal connected to the second conductor from the opposite side of the first reinforcing film, the front terminal portion comprising: a third conductor made of an electrolytic copper foil or a rolled copper foil; A third insulating film and a third cover film made of polyimide or polyester and coupled to both sides around the third conductor; A second reinforcing film made of polyimide, glass epoxy or polyester and coupled to the third insulating film; And a second terminal connected to the third conductor on the opposite side of the second reinforcing film.

In addition, in the electrosurgical instrument according to an embodiment of the present invention, the electrical energy delivered to the conductive electrode is radio frequency (RF) electrical energy, the conductive electrode is monopolar, and the working rod is an insulator, and is in the form of a pipe. It consists of a working pipe for receiving the rear portion of the conductive electrode; And a light emitting unit coupled to one side of the operating pipe to irradiate light and receive electric energy through the connecting body.

According to the electrosurgical instrument according to an embodiment of the present invention, a conductive electrode and an operating rod are formed by including a spiral type or helical type connection so that the entire length is made of a flexible circuit board and the conductive electrode and the working rod are handpieces. It is possible to maintain an electrically stable bonding state when moving or rotating relative to the front-rear direction, and also to provide an electrosurgical mechanism in which the movement of the conductive electrode is smooth.

In addition, according to the electrosurgical instrument according to an embodiment of the present invention, even if the conductive electrode is repeatedly moved or rotated relative to the handpiece by the elasticity of the deformed portion of the connecting body, the connecting body can be effectively prevented from being tangled or damaged, and sufficient durability is provided. Even if the conductive electrode and the operating rod are repeatedly moved or rotated against the handpiece, short circuit of the electrical connection is prevented.

In addition, according to the electrosurgical instrument according to an embodiment of the present invention, a stable linear movement of the working rod is achieved by including a slider and a rotator, and unnecessary friction does not occur when rotating the working rod, and rotating in both directions in a predetermined angle range It is possible to provide this possible electrosurgical instrument.

In addition, according to the electrosurgical mechanism according to an embodiment of the present invention, the collet is bent in an asymmetrical shape when the fixing nut is rotated by being provided with a first deformation hole in the collet. At this time, even if an error in the outer diameter of the operating rod occurs, the fixing nut is set. It is possible to provide an electrosurgical mechanism that can be rotated at a rotational angle, and the working rod and collet are in close contact with each other to be frictionally stabilized.

Other effects of the electrosurgical instrument according to an embodiment of the present invention will be described below based on the accompanying drawings.

1 is a perspective view showing an electrosurgical instrument according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing the electrosurgical instrument shown in FIG. 1. In Fig. 2, the fixed turret and the front sleeve are shown with an enlarged view when viewed from the side.
FIG. 3 is a perspective view showing the electrosurgical instrument shown in FIG. 1 together with a voltage control unit and a ground pad. In FIG. 3, a part of the handpiece is shown in a deleted form so that the inside of the handpiece is shown.
FIG. 4 is a perspective view showing a modified state of the electrosurgical instrument shown in FIG. 3. In FIG. 4, a part of the handpiece is shown in a deleted form so that the inside of the handpiece is shown.
5 is a perspective view and a cross-sectional view showing a part of an electrosurgical instrument according to an embodiment of the present invention. In FIG. 5 (a), the operating rod is shown in an excluded form, and a part of the fixing nut is shown in a removed form so that the inside of the fixing nut appears.
6 is a perspective view and a cross-sectional view of a collet according to an embodiment of the present invention. 6 (a) to 6 (c) show different types of collets, and FIG. 6 (d) is a cross-sectional view of the collet shown in FIG. 6 (c), and FIG. 6 (e) shows FIG. 6 ( It is a view showing a modified form of the collet shown in d).
7 is a partial perspective view showing a slider and a rotator separated from an electrosurgical instrument according to an embodiment of the present invention. The dotted line in FIG. 7 (b) shows the path of the screw bone.
8 is a partial perspective view showing an electrosurgical instrument according to an embodiment of the present invention. In FIG. 8, a part of the handpiece is shown in a deleted form so that the inside of the handpiece is shown.
9 is a view schematically showing a connection body according to an embodiment of the present invention.
10 is a perspective view showing a state in which the connecting body according to embodiments of the present invention is unfolded.
11 is a perspective view showing a state in which the connecting body according to an embodiment of the present invention is unfolded.
12 is a view showing a sliding rotator and a handpiece coupled thereto according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

1 is a perspective view showing an electrosurgical instrument 1 according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing the electrosurgical instrument 1 shown in FIG. 1, and FIG. 3 is illustrated in FIG. 1 It is a perspective view showing the electrosurgical instrument 1 with a voltage control unit and a ground pad, Figure 4 is a perspective view showing a modified state of the electrosurgical instrument 1 shown in Figure 3, Figure 5 is the present invention A perspective view and a cross-sectional view showing a part of the electrosurgical instrument 1 according to an embodiment, FIG. 6 is a perspective view and a cross-sectional view of a collet according to an embodiment of the present invention, and FIG. 7 is an electrosurgery according to an embodiment of the present invention Part 1 is a perspective view showing the slider and the rotator separated from the instrument 1, Figure 8 is a partial perspective view showing the electrosurgical instrument 1 according to an embodiment of the present invention, Figure 9 is according to an embodiment of the present invention It is a diagram schematically showing the connection body, and FIGS. 10 and 11 are perspective views illustrating a state in which the connection body according to embodiments of the present invention is unfolded.

3 and 4, the handpiece 100 is shown in a cut along the longitudinal direction for the purpose of describing the configuration located inside the handpiece 100. And, in FIG. 4, the entire length of the connection body 400 of FIG. 3 is increased in the front-rear direction.

9 (b), only the deformed portion 430 of the connecting body 400 is illustrated.

Electrosurgical instrument (1) according to an embodiment of the present invention is a device used in electrosurgery (Electrosurgery), handpiece 100, cable 200, slider 500, operating rod 300 and connecting body ( 400).

In addition, radio frequency electrical energy may be applied to the electrosurgical instrument 1 according to an embodiment of the present invention as electrical energy.

The electric circuit used in the electrosurgical instrument 1 according to the embodiment of the present invention may be monopolar or bipolar. In the electrosurgical instrument 1 according to the specific embodiment of the present invention, the electric circuit is made of unipolarity, and the conductive electrode 310 is made to fit.

Since the electrosurgical instrument 1 according to the embodiment of the present invention is used, the voltage control unit 10 may be provided together as a high frequency (RF) generator, and the voltage control unit is a high frequency generator attached to one side of a patient's body. A ground pad 20 that forms the return electrical path to 10 may also be provided.

The handpiece 100 may be formed in a size and shape sufficient to be gripped by a user (eg, a doctor). In addition, the handpiece 100 is made to cut off the electrical connection between the cable 200 and the conductive electrode 310, and for this purpose, the entire handpiece 100 may be made of a non-conductor or an outer surface portion may be made of a non-conductor. The handpiece can be made of plastic. The handpiece 100 may be generally formed in a long pipe shape or a cylindrical shape in the front-rear direction, and the outer / outer circumferential shape may be variously formed for the convenience of gripping. A receiving space 105 is provided inside the handpiece 100, and another configuration constituting an electrosurgical instrument according to an embodiment of the present invention may be located in the receiving space 105.

The handpiece may be divided into an outer case 101a and 101b and an inner case 102 accommodated inside the outer cases 101a and 101b, as shown in FIG. 2.

The handpiece 100 may have a total length (L ₁ ) of 10 to 40 cm in range, in particular of 15 to 35 cm in various lengths, and is preferably made to have a length of around 20 cm.

In the electrosurgical instrument according to an embodiment of the present invention, the front and back are determined based on the length direction (front-to-back) of the handpiece 100, and specifically, the side where the cable 200 is coupled in the handpiece 100 In the back, the side where the conductive electrode 310 is coupled in the handpiece 100 is determined as the front side.

The front sleeve 110 is provided at the front end of the handpiece. The front sleeve 110, like other parts of the handpiece, may be formed in a substantially cylindrical shape.

The front sleeve 110 may be provided with incision grooves 110c cut in both front and rear directions, and thus may be formed in a combination of two semi-cylinders 110a and 110b.

The front sleeve 110 may have a smaller diameter than other parts of the handpiece.

The front portion of the working rod 300 protrudes through the front sleeve 110, and the support of the working rod 300 is made in the front sleeve 110 portion.

A fixed groove 111 formed in a concave groove shape is formed on an outer circumferential surface of the front sleeve 110. The fixing groove 111 forms a movement path through which the fixing protrusion 710 of the fixing nut 700 to be described later moves, and is divided into a first groove 111a, a second groove 111b, and a third groove 111c. .

The first groove 111a is positioned at the front of the fixed groove 111.

The second groove 111b is spaced in the circumferential direction from the first groove 111a and is located behind the first groove 111a.

The third groove 111c connects the first groove 111a and the second groove 111b, and forms a movement path in which the fixing protrusion 710 of the fixing nut 700 to be described later moves.

The fixing groove 111 may be provided in a pair on the outer circumferential surface of the front sleeve 110, wherein the pair of fixing grooves 111 are formed in a rotationally symmetrical form opposite to each other.

In addition to the fixing groove 111, a concave entry groove 112 may be formed on the outer peripheral surface of the front sleeve 110. The entry groove 112 is made toward the rear from the front end of the outer circumferential surface of the front sleeve 110 and is connected to the first groove 111a of the fixing groove 111. The fixing protrusion 710 of the fixing nut 700 to be described later may move toward the fixing groove 111 through the entry groove 112.

In addition, a locking projection 113 protruding outward is formed between the first groove 111a of the fixing groove 111 and the entry groove 112, and the locking projection 113 is fixed groove 111 in the entry groove 112. ) Prevents the fixed protrusion 710 moved toward the first groove 111a from moving back toward the entry groove 112 unintentionally.

The handpiece 100 may be provided with one or more operation buttons 105, and through these buttons 105, it is possible to control whether electrical energy is delivered to the conductive electrode 310, or of the delivered electrical energy. The frequency can be controlled. In addition, another button 107 for controlling the operation of the light emitting unit 340 to be described later may be provided on the handpiece 100.

In the electrosurgical instrument according to an embodiment of the invention, the slider 500 is coupled to the handpiece 100 and is made to be able to reciprocate along the longitudinal direction (front-rear direction) of the handpiece.

In particular, the slider 500 is coupled to the inside of the handpiece 100 and can slide in the front-rear direction.

In addition, the slider 500 may be formed in a cylindrical shape that is generally penetrated in the front-rear direction.

The virtual axis forming the movement path of the slider 500 against the handpiece 100 is referred to as a movement axis S2. When the portion of the handpiece to which the slider 500 is coupled is formed in a linear shape along the front-rear direction, the moving axis S2 of the slider 500 is formed in a straight shape, and the portion of the handpiece to which the slider 500 is coupled is In the case of a curved shape in the front-rear direction, the moving shaft S2 of the slider 500 is curved.

The moving shaft S2 of the slider 500 may form an extension line of the rotating shaft S1 of the working rod 300.

To move the slider 500 against the handpiece 100, a slide groove parallel to the moving shaft S2 is formed on one of the handpiece 100 and the slider 500, and the slide groove is provided on the other. The slide projection is formed by being inserted and moving in a direction parallel to the moving shaft S2.

In the electrosurgical instrument according to the embodiment of the present invention described on the basis of the drawings, the slide groove 120 is formed on the inner surface of the handpiece 100, the slide protrusion 510 on the outer surface of the slider 500 It is shown in the form of formation (see FIGS. 5 and 8).

The width of the slide projection 510 in the left and right directions is made to fit the width of the slide groove 120 in the right and left directions, and accordingly, apart from the front-rear movement of the slider 500 against the handpiece 100, there is a gap between them. It is made so that there is no.

The cable 200 may be formed of a wire or a combination of wires. The cable 200 is fixedly coupled to the back of the handpiece 100, and is made to transmit high-frequency electrical energy formed in the voltage control unit 10 toward the handpiece 100, particularly the conductive electrode of the working rod 300 It is to be delivered to the (310). On the other hand, when the light emitting unit 340, which will be described later, is provided, the cable 200 is configured to supply electric energy that is also divided toward the light emitting unit 340.

The operation rod 300 is coupled to the handpiece 100 and is made to reciprocate (M ₁ ) in the front-rear direction relative to the handpiece 100. In addition, the conductive electrode 310 is made to be rotated relative to the handpiece 100, and is made to be capable of reciprocating in both directions (M ₂ ) based on the central rotation axis S1 in the front-rear direction.

In the electrosurgical instrument 1 according to an embodiment of the present invention, the operation rod 300 may include an operation pipe 320, a conductive electrode 310, and a rotator 330. In addition, the operating rod 300 may further include a light emitting unit 340.

The operating rod 300 is coupled to the handpiece in a form that is inserted into the handpiece 100, and in particular, the working pipe 320 and the rotator 330 can be inserted into the handpiece 100.

The conductive electrode 310 forms a front end portion of the working rod 300.

The conductive electrode 310 (as in a conventional general electrosurgical instrument, may be referred to as an incision tip or a blade, etc.) may partially or partially protrude toward the front of the handpiece 100.

The conductive electrode 310 fixed on the operation rod 300 is made to reciprocate (M ₁ ) in the front-rear direction relative to the handpiece 100. In addition, the conductive electrode 310 is made to be rotated relative to the handpiece 100, and is made to be capable of reciprocating rotation (M ₂ ) in both directions based on the rotational axis S1 in the front-rear direction.

The conductive electrode 310 is a portion directly used for electrosurgery, is electrically connected to the cable 200, and is operated while being discharged after high-frequency electrical energy is transferred to the conductive electrode 310.

The conductive electrode 310 may be used to incision, ablate and / or cauterize the patient's tissue, and may be generally formed in a thin and long plate shape, as in a conventional general electrosurgical instrument. In addition, the conductive electrode 310 according to the embodiment of the present invention is made to be suitable for monopolarity.

The conductive electrode 310 may be directly connected to the connector 400, or alternatively, may be electrically connected to the connector 400 through a separate conductor. Here, an ordinary electric wire may be used as a separate conductor.

Meanwhile, in the electrosurgical instrument according to an embodiment of the present invention, a connection bar 350 may be provided for electrical connection and coupling between the conductive electrode 310 and the connection body. The connecting bar 350 forms one configuration of the operating rod 300, may be formed in the form of a printed circuit board long in the front-rear direction, and the conductive electrode 310 is fixed to the front end of the connecting bar 350 Combined, the front end portion 420 of the connection body may be coupled to the rear end of the connection bar 350.

The working pipe 320 is made long in the front-rear direction and forms the entire body of the working rod 300. The working pipe 320 may be made of an insulator such as plastic, and formed in a pipe shape, and particularly made of a cylindrical shape, and a part (rear part) is accommodated in the receiving space 105 of the handpiece 100.

The working pipe 320 may have the same diameter in the front-rear direction, and particularly, the outer diameter may be the same.

The working pipe 320 is made to be able to reciprocate (slide movement, M ₁ ) in the front-rear direction relative to the handpiece 100, and is also capable of rotating in both directions (M ₂ ) based on the rotational axis S1 in the front-rear direction. Is done. To this end, the outer diameter of the working pipe 320 is made equal to or smaller than the diameter of the receiving space 105 of the handpiece 100.

When the front sleeve 110 is provided on the handpiece 100, the outer circumferential surface of the working pipe 320 faces the inner circumferential surface of the front sleeve 110, provided that the collet 600 has the working pipe 320 and the front sleeve. Interposed between (110), the outer diameter of the working pipe 320 is made smaller than the inner diameter of the front sleeve (110).

In the electrosurgical instrument 1 according to the embodiment of the present invention, the conductive electrode 310 may be fixed to the working pipe 320. At this time, the conductive electrode 310 protrudes toward the front end of the handpiece 100 as well as the front end 311 protrudes toward the front end of the working pipe 320.

The conductive electrode 310 may be directly connected and fixed to the working pipe 320, or may be fixed to the working pipe 320 through other means.

At least a portion of the connecting bar 350 is accommodated inside the working pipe 320, and in this state, the front portion (front terminal part 420) of the connecting body 400 may be fixed to the rear end of the connecting bar 350. In addition, electrical connection between the conductive electrode 310 and the connection member 400 may be made through the connection bar 350.

When the electrosurgical instrument according to an embodiment of the present invention does not have a connection bar 350 and forms the conductive electrode 310 long enough, the rear end of the conductive electrode 310 is the front terminal portion 420 of the connector 400 ).

Since the conductive electrode 310 is fixed to the working pipe 320, when the user moves or rotates the working rod 300, in particular, the working pipe 320 in the front-rear direction, against the handpiece 100, the handpiece ( It is possible to adjust the position and direction (direction of the edge) of the front end 310 of the conductive electrode 310 relative to 100).

The rotator 330 forms a rear end portion of the operating rod 300. And the rotator 330 may be fixedly coupled to the rear end of the operation pipe 320.

The rotator 330 is coupled to the slider 500 so as to be rotatable in both directions around the moving axis S2 constituting the moving path of the slider 500.

In the electrosurgical instrument according to an embodiment of the present invention, when the slider 500 is formed in a cylindrical shape, the rotator 330 may be combined with the slider 500 while being inserted inside the slider 500, and also the slider 500 And the rotator 330 may be combined in a screwed form.

For example, one of the slider 500 and the rotator 330 may be formed with a spiral screw bone and the other may be formed with a rotating protrusion that is inserted into the screw bone and moves along the screw bone.

In the electrosurgical instrument according to an embodiment of the present invention described on the basis of the drawings, the screw bone 331 is formed on the outer circumferential surface of the rotator 330, the rotation protrusion 520 is formed on the inner surface of the slider 500 It is shown as (see FIG. 7).

The rotation protrusion 520 is inserted into the screw bone 331 and moves relative to the entire length of the screw bone 331, thereby rotating the rotator 330 against the slider 500, and also the slider 500 The rotation angle range of the rotator 330 with respect to is determined.

The length of the threaded bone 331 may be made such that the maximum rotation angle (maximum rotation angle of the rotator 330) of the working rod 300 based on the slider 500 and the handpiece 100 is limited to an arbitrary angle. have. That is, the length from one end 331a of the screw bone 331 to the other end 331b is determined as an arbitrary length, and the rotation angle of the screw bone 331 around the moving axis S2 is arbitrary. It can be made at an angle of.

Specifically, the length (the length from 331a to 331b) of the screw bone 331 and the angle, the maximum rotation angle of the working rod 300 based on the slider 500 (maximum rotation angle of the rotator 330) is 0 ° It can be set to be any angle greater than 450 ° or less, or can be made to be 360 °, or can be made to be limited to any angle in the range of 360-450 °.

By doing as described above, when the operation rod 300 is moved in the front-rear direction relative to the handpiece 100, the rotator 330 and the slider 500 move together in the front-rear direction, and at this time, the rotator 330 and the slider There is no relative movement between (500). Then, when the operating rod 300 is rotated against the handpiece 100, the rotator 330 rotates around the moving shaft S2 and the rotating protrusion 520 moves along the screw bone 331.

Accordingly, it is possible to make the rotation of the operation rod 300 relative to the handpiece 100 within a predetermined angular range while the front and rear movement of the operation rod 300 against the handpiece 100 is possible. , At this time, smooth operation can be achieved without generating unnecessary friction. In addition, the deformation of the connecting body 400 according to an embodiment of the present invention can be made within a predictable range, and it is possible to prevent damage to the connecting body 400 or interference with other parts.

Unlike the present invention, if the rotation angle of the working rod 300 against the handpiece 100 is not limited, the rotation of the working rod 300 against the handpiece 100 in use may continue to be made in either direction. In this case, damage may occur due to excessive deformation of the connector 400.

In the present invention, the collet for fixing the conductive electrode 310 against the handpiece 100 in a state where the position and direction of the front end 311 of the conductive electrode 310 against the handpiece 100 are adjusted It comprises 600 and the fixing nut 700.

The collet 600 is generally formed in a pipe shape, and in particular, the overall shape is cylindrical. The collet 600 is made of an elastically deformable material, and may be made of metal or plastic, or a combination thereof.

The collet 600 does not form a complete cylindrical shape, and the collet 600 is provided with a first deformed hole 610 that is a hole penetrated along the circumferential direction. The first deformation hole 610 is made long along the circumferential direction, and the length of the circumferential direction is longer than the width of the front-rear direction. The length of the first deformation hole 610 may be longer than the semicircle of the collet 600. The first deformation hole 610 helps smooth elastic deformation of the collet 600.

And in the electrosurgical instrument according to an embodiment of the present invention, the collet 600 may further include a collet protrusion 620, and may further include a second deformation hole 630.

The collet protrusion 620 protrudes forward from the side where the first deformed hole 610 is formed in the front edge of the collet 600. That is, the collet protrusion 620 in the collet 600 forms the most protruding part. The collet protrusion 620 is in contact with the fixing nut 700, and is elastically deformed of the collet 600 while being pressed to the rear when the rear side of the fixing nut 700 is moved.

The second deformation hole 630, like the first deformation hole 610, forms a hole to be penetrated in the circumferential direction in the collet 600. And the second deformation hole 630 is made long along the circumferential direction, and the length of the circumferential direction is longer than the width of the phone direction. In addition, the length of the second deformation hole 630 may be longer than the semicircle of the collet 600. The second deformation hole 630 also helps smooth elastic deformation of the collet 600.

In the electrosurgical instrument according to the embodiment of the present invention, the second deformation hole 630 is provided on the opposite side of the side where the first deformation hole 610 is formed in the circumferential surface of the collet 600.

In the collet 600, the first deformation hole 610 and the second deformation hole 630 may be provided in one or more, respectively.

The fixing nut 700 is formed in a pipe shape penetrated in the front-rear direction, but may be formed in a tapered shape whose outer diameter decreases toward the front side, and is rotatably coupled to the front circumferential surface of the handpiece 100. When the front sleeve 110 is provided on the handpiece, the fixing nut 700 is rotatably coupled to the outer peripheral surface of the front sleeve 110.

The working rod 300 penetrates through the center of the fixing nut 700 and protrudes forward. In particular, the working pipe 320 penetrates the fixing nut 700 and the front portion of the working pipe 320 is fixed nut 700. It is exposed to the outside while being located in front of. The user may move or rotate the operation rod 300 in the front-rear direction by gripping the portion of the operation pipe 320 exposed from the front side of the fixing nut 700.

The fixing nut 700 is coupled to the front sleeve 110 and is made to be rotatable about a rotation axis S1 in the front-rear direction, but is not made to continuously rotate in one direction, and is bidirectional within a predetermined angle range. It is made to rotate. For example, the fixing nut 700 is coupled to the front sleeve 110 may be made to rotate in both directions within a range of 180 °, preferably, the maximum rotation angle can be made to be 90 °.

On the inner circumferential surface of the fixing nut 700, a fixing protrusion 710 protruding in the inner direction is formed to be inserted into the fixing groove 111. As described above, when the fixing groove 111 is provided in a pair, the fixing protrusion 710 is also provided in a pair. 2, the fixing protrusion 710 formed on the inner circumferential surface of the fixing nut 700 is indicated by a dotted line.

When the fixing nut 700 is rotated against the handpiece in a state where the fixing protrusion 710 is inserted into the fixing groove 111, the fixing protrusion 710 is the first groove 111a, the second of the fixing groove 111 It moves along the groove 111b and the third groove 111c, and the rotation angle from the first groove 111a to the third groove 111c becomes the maximum rotation angle of the fixed protrusion 710, and also the handpiece It is the maximum rotation angle of the fixing nut 700 against.

When the fixing nut 700 coupled to the front sleeve 110 is rotated, the fixing nut 700 is also moved in the front-rear direction. In particular, when the fixing protrusion 700 is rotated so that the fixing protrusion 710 moves from the first groove 111a to the third groove 111c, the fixing nut 700 moves to the rear.

By the rearward movement of the fixing nut 700, the fixing nut 700 can press the collet 600 to the rear, and in particular, the collet protrusion 620 of the collet 600 to the rear.

A pressing jaw 720 may be formed as a portion that presses the collet protrusion 620 of the collet 600 in the fixing nut 700. The pressing jaw 720 protrudes inward from the front side of the fixing protrusion 710. The pressing jaw 720 may be formed along the entire circumferential direction of the fixing nut 700.

In addition, a stopper 106 is formed inside the handpiece to prevent the collet 600 from moving backward.

When rotating the fixing nut 700 coupled to the front sleeve 110 to move the fixing nut 700 to the rear, the pressure jaw 720 of the fixing nut 700 presses the collet protrusion 620 to the rear, Accordingly, the collet 600 is elastically deformed while being compressed. Specifically, in the first deformation hole 610 portion, the size of the first deformation hole 610 may be deformed, and in the second deformation hole 630 portion, the size of the second deformation hole 630 may be increased. It can be transformed into (see Fig. 6 (e))

As such, the collet 600 is elastically deformed in an asymmetrical form based on the rotation axis S1, and accordingly, some of the inner circumferential surfaces 601 of the collet 600 have an outer circumferential surface of the working rod 300, in particular, of the working pipe 320. As it comes into close contact with the outer circumferential surface, frictional force is generated or increased, and the working rod 300 is fixed against the handpiece.

When the fixing protrusion 710 reversely rotates the fixing nut 700 to move from the third groove 111c toward the first groove 111a, the fixing nut 700 moves forward, and the collet 600 is It is elastically restored to its original state, and accordingly, the operating rod 300 is released from the handpiece.

The light emitting unit 340 is coupled to one side of the operation pipe 320 to irradiate light toward the front (surgery site), and is configured to receive electric energy through the connector 400.

In addition, the light emitting unit 340 may be coupled on the handpiece 100 rather than the operation pipe 320.

The light emitting unit 340 may be made of a conventional LED (Light Emitting Diode, LED), it is made to assist the convenience of surgery by irradiating light to the surgical site. A switch (button, 107) for the operation of the light emitting unit 340 may be provided on the handpiece 100.

The connector 400 is provided inside the accommodation space 105 to electrically connect the cable 200 and the conductive electrode 310, and at least a part is made of a flexible printed circuit board (FPCB).

In addition, the connecting body 400 is made of a spiral (see Fig. 9 (a)) or a screw (helical) (see Fig. 9 (b)) is made to vary the entire length in the front-rear direction.

The connection body 400 according to an embodiment of the present invention may include a rear terminal portion 410, a front terminal portion 420 and a deformation portion 430. In the present invention, the deformable portion 430 is made of FPCB, and the rear terminal portion 410 and the front terminal portion 420 may also be made of FPCB. However, when the entire connection member 400 is made of FPCB, the deformable portion 430 is preferably made to have better flexibility than the rear terminal portion 410 and the front terminal portion 420.

The rear terminal portion 410 is coupled to the cable 200 side, the terminals 415, 415a, 415b, and 415c are exposed on one surface thereof, and the terminals 415, 415a, 415b, and 415c of the rear terminal portion 410 are cabled It is combined with the wire of 200.

In the electrosurgical instrument 1 according to the embodiment of the present invention, when only the conductive electrode 310 is provided without the light emitting part 340, the rear terminal part 410 has one terminal 415a electrically connected to the conductive electrode 310. ) Is provided (because it is unipolar), and when the light emitting unit 340 is provided, the rear terminal unit 410 has three terminals (one (415a) electrically connected to each of the conductive electrode 310 and the light emitting unit 340. ) Is connected to the conductive electrode 310, and two (415b, 415c are connected to the light emitting unit 340) are provided.

The number of such electrodes can be applied to the front terminal 420 as well.

The front terminal portion 420 is coupled to the conductive electrode 310 side, and the terminals 425, 425a, 425b, and 425c are exposed on one surface thereof. As described above, the front terminal portion 420 may be fixedly coupled on the fixing portion 510 of the working pipe 320, and the terminals 425 and 425a of the front terminal portion 420 may be electrically connected to the conductive electrode 310. Leads to

In addition, when the light emitting unit 340 is provided, other terminals 425b and 425c of the front terminal unit 420 are electrically connected to the light emitting unit 340.

The deformable portion 430 includes a conductor 431 and films 432 and 433, and the conductor 431 of the deformed portion 430 is a rear terminal portion 410 (especially, a conductor of the rear terminal portion 410). And the front terminal portion 420 (in particular, the conductor of the front terminal portion 420) are electrically connected, and the films 432 and 433 are formed of non-conductors and are coupled to both sides to shield the conductor 431 in the center.

And the deformable portion 430 is made of a spiral, and is made to have flexibility (flexibility) and elasticity (elasticity). Since the deformable portion 430 has flexibility and elasticity, as shown in FIG. 4, the user moves the working pipe 320 and the conductive electrode 310 in the forward direction against the handpiece 100 to connect the connector ( When the total length in the front-rear direction of 400) increases, the elastic deformation of the deformed portion 430 is achieved while the diameter (d ₂ , d _3, d ₄ ) of the deformed portion 430 forming a spiral (or threaded) decreases. The deformable portion 430 stores elastic energy.

In addition, when the user rotates the working pipe 320 and the conductive electrode 310 against the handpiece 100, the diameter (d ₂ , d _3, d ₄ ) of the deformed portion 430 forming a spiral (or threaded) ) Decreases or increases, the elastic deformation of the deformable portion 430 is made, and the deformable portion 430 also stores elastic energy.

As described above, since the deformable portion 430 made of a spiral or a screw type has flexibility and elasticity, when the entire length of the connecting body 400 is varied and rotated, the overall shape and structure of the deformable portion are not disturbed and predictable deformation. It is possible to maintain the state, it is possible to maintain a stable bonding state.

Looking at the lamination structure of the deformable portion 430, the first conductor 431, the first insulating film 432, and may include a first cover film 433.

The first conductor 431 may be made of electrolytic copper or rolled annealed copper.

The first insulating film 432 and the first cover film 433 are made of polyimide (PI) or polyester (polyethyleneterephthalate, PET), respectively, and are coupled to both sides around the first conductor 431.

In the present invention, when the light emitting unit 340 is provided, the conductor 431 of the deforming unit 430 may be divided into a first line EL ₁ and a second line EL ₂ .

The first line EL ₁ is made of a conductor to transmit high-frequency electric energy to the conductive electrode 310, and the second line EL ₂ is spaced apart from the first line EL ₁ and is electrically energy to the light emitting unit 340. To pass.

Deformation part 430, the thickness (t) 50 ~ 200㎛, width (d ₁ ) 3 ~ 15㎜, length (L ₂ ) It can be made to have any size in the range of 150 ~ 400㎜, spirally wound The number of times may be made to have an arbitrary value in the range of 3 to 50 times, preferably 10 to 25 times.

The rear terminal portion 410 and the front terminal portion 420 may be formed of the same stacked structure as each other (however, the wiring shape may be different).

The rear terminal portion 410 includes a second conductor 411, a second insulating film 412, a second cover film 413, a first reinforcing film 414 and a first terminal 415, 415a, 415b, 415c. Including.

The second conductor 411 is made of electrolytic copper foil or rolled copper foil, and is integrally connected to the first conductor 431. When the first conductor 431 is divided into the first line EL ₁ and the second line EL ₂ , the second conductor 411 is also divided as described above, and the first line of the first conductor 431 is respectively It goes without saying that the EL ₁ ) and the second line EL ₂ are connected to each.

The second insulating film 412 and the second cover film 413 are made of polyimide or polyester and are coupled to both sides around the second conductor 411.

The first reinforcing film 414 is made of polyimide, glass epoxy or polyester, and is coupled to the second insulating film 412.

The first terminals 415, 415a, 415b, and 415c are connected to the second conductor 411 on the opposite side of the first reinforcing film 414.

The front terminal portion 420 includes a third conductor 421, a third insulating film 422, a third cover film 423, a second reinforcing film 424, and a second terminal 425, 425a, 425b, 425c. Including.

The third conductor 421 is made of electrolytic copper foil or rolled copper foil, and is integrally connected to the first conductor 431. When the first conductor 431 is divided into the first line EL ₁ and the second line EL ₂ , the third conductor 421 is also divided as described above, and each of the first lines of the first conductor 431 ( It goes without saying that the EL ₁ ) and the second line EL ₂ are connected to each.

The third insulating film 422 and the third cover film 423 are made of polyimide or polyester and are coupled to both sides around the third conductor 421.

The second reinforcing film 424 is made of polyimide, glass epoxy or polyester, and is coupled to the third insulating film 422.

The second terminal 425 is connected to the third conductor 421 on the opposite side of the second reinforcement film 424.

The rear terminal portion 410 and the front terminal portion 420 are slightly thicker than the deformable portion 430 by further comprising a first reinforcing film 414 and a second reinforcing film 424 as compared with the deformable portion 430. It is done and it is done more firmly.

As shown in FIG. 4, in a state in which the rear terminal portion 410, the front terminal portion 420, and the deformation portion 430 of the connecting body 400 according to an embodiment of the present invention are expanded to form the same plane, the deformation portion ( When the longitudinal direction of 430 is referred to as a first direction (A), the rear terminal portion 410 and the front terminal portion 420 may be formed along the first direction (A) (see FIG. 10 (a)).

Or, alternatively, any one or more of the rear terminal portion 410 and the front terminal portion 420 may be made to face a bending or bending direction in the first direction (A), wherein the rear terminal portion 410 and the front terminal portion 420 The ends of the can be made to face opposite directions to each other (see FIGS. 10 (b) and (c)).

In this case, the direction in which the ends of the rear terminal portion 410 and the front terminal portion 420 are directed is orthogonal to the first direction A, or the angle θ1 formed by the deforming portion 430 and the rear terminal portion 410 and The angle θ2 formed by the deformable part 430 and the front terminal part 420 may be an arbitrary angle in the range of 90 to 120 °, respectively.

The connector 400 according to an embodiment of the present invention may be first manufactured in a flat form as illustrated in FIG. 10 in the manufacturing process, and then the deformable part 430 may be spiral or It can be machined to be threaded. The flat deformed portion 430 is repeatedly wound on the outer circumferential surface of a separate long rod (rod), and the deformed portion 430 is applied by applying heat in a predetermined temperature range while the deformed portion 430 is wound in a spiral or screw shape. It can be thermally deformed, and then, through a cooling process, the shape in which the deformable portion 430 is wound can be maintained.

When the first insulating film 432 and the first cover film 433 constituting the deformed portion 430 are made of polyimide, heat is applied at about 250 ° C. or more while the deformed portion 430 is wound in a spiral or the like. The deformable portion 430 may be thermally deformed and then cooled to maintain a spiral shape.

In the present invention, 'helical' refers to a form in which its diameter (d ₂ , d ₃ ) decreases (or increases) along the front-rear direction (see FIG. 9 (a)), and 'screw-shaped' has its diameter along the front-rear direction. (d ₄ ) refers to a certain form (see Fig. 9 (b)).

And when the deformable portion 430 is made of a spiral, the deformable portion 430 may be made to overlap with each other while being wound, and in particular, the deformable portion 430 is spiraled toward the front terminal portion 420 from the rear terminal portion 410 side. It can be made so that the diameter of (d3 <d2).

In addition, the deformable portion 430 may be formed such that the deformed portion 430 overlaps with each other in a state in which the elastic deformation is not performed, thereby minimizing the length in the front-rear direction without being pulled to both sides.

On the other hand, in a state in which the rear terminal portion 410, the front terminal portion 420, and the deforming portion 430 are extended to form the same plane, the direction in which the ends of the rear terminal portion 410 and the front terminal portion 420 face toward the first direction A ), Or the angle formed by the deformed portion 430 and the rear terminal portion 410 (and the angle formed by the deformed portion 430 and the front terminal portion 420) is an arbitrary angle in the range of 90 to 120 ° , In the state in which the deformed portion 430 is threaded or spirally processed, the rear terminal portion 410 and the front terminal portion 420 may be formed to be parallel to the front-rear direction or substantially along the front-rear direction.

Accordingly, when the conductive electrode 310 and the connection member 400 are moved and / or rotated relative to the handpiece 100, the rear terminal portion 410 and the deforming portion 430 are connected to the front portion and the front terminal portion 420. And the deformation part 430 may prevent unintentional and undesired deformation in the following portion, and prevent the connection body 400 from being damaged, broken, or deformed.

In addition, in the present invention, when the conductive electrode 310 and the connection member 400 are moved and / or rotated against the handpiece 100, the rear terminal portion 410 and the front terminal portion 420 are fixed and the deformation portion ( 430) Since only the strain is deformed, a stable electrical connection state is maintained, and problems caused by changes in contact resistance can be solved.

That is, unlike the present invention, when the conductive electrode 310 and the connection member 400 are moved and / or rotated against the handpiece 100, when the terminal itself in electrical contact moves, in the terminal portion The contact resistance may vary due to the change in the contact force, the electrical characteristics change due to a difference in the current value, and an instantaneous short circuit may occur when the contact is unstable.

In addition, unlike the present invention, when the terminal itself that is in electrical contact moves, abrasion may occur due to friction, which may also cause incomplete operation of the electrosurgical instrument.

11 is a perspective view showing a state in which the connector 400 according to another embodiment of the present invention is unfolded. In FIG. 11, for the description of the third reinforcing film 434, the detailed configuration of the rear terminal portion 410, the front terminal portion 420, and the deforming portion 430 is omitted, but of course, such a configuration is provided together.

In the electrosurgical instrument 1 according to an embodiment of the present invention, the deformable portion 430 may further include a third reinforcing film 434.

The third reinforcing film 434 is made of polyimide, glass epoxy, or polyester, and is coupled to one side of the first insulating film 432 or the first cover film 433.

The width d ₅ of the third reinforcing film 434 is made smaller than the width d ₁ of the first insulating film 432 or the first cover film 433, and the first insulating film 432 or the first It may be made to have an arbitrary size in the range of 1/5 to 1/2 of the width d ₁ of the cover film 433.

Since the deformable portion 430 further includes a third reinforcing film 434, it is possible to improve elasticity while maintaining the overall flexibility of the deformable portion 430, and ensure stable deformation of the elastic portion.

According to the present invention as described above, the conductive electrode 310 can be maintained in an electrically stable coupling state by moving or rotating the handpiece 100 in the front-rear direction relative to the handpiece 100 by including the connecting body 400. In addition, it is possible to provide an electrosurgical instrument in which the movement of the conductive electrode 310 is smooth.

In addition, according to the electrosurgical instrument 1 according to an embodiment of the present invention, a stable linear movement of the working rod 300 is achieved by including the slider 500 and the rotator 330, and the working rod 300 is rotated. It is possible to provide an electrosurgical instrument 1 that does not generate unnecessary friction and allows bi-directional rotation in a predetermined angular range.

In addition, according to the electrosurgical instrument 1 according to an embodiment of the present invention, the collet 600 is provided with a first deformed hole 610 so that the collet 600 is bent in an asymmetrical shape when the fixing nut 700 is rotated. In this case, even if an error in the outer diameter of the working rod 300 occurs, the fixing nut 700 can be rotated at a set rotation angle, and the working rod 300 and collet 600 are in close contact with each other and rubbing while working. It is possible to provide an electrosurgical instrument 1 that can be stably fixed.

12 is a view showing a sliding rotator 370 and a handpiece 100 coupled thereto according to an embodiment of the present invention.

The electrosurgical instrument 1 according to an embodiment of the present invention may include a handpiece 100, a cable 200, a working rod 300, and a connecting body 400.

That is, the electrosurgical instrument 1 according to the embodiment of the present invention may be formed in the form without the slider 500 described above. And at this time, the operation rod 300 may be made of an operation pipe 320, a conductive electrode 310 and a sliding rotator 370. In addition, the operating rod 300 may further include a light emitting unit 340.

Here, the operation rod 300 does not include the above-described rotator 330, but is made of a sliding rotator 370.

In the working rod 300, the cable 300 and the connecting member 400 may be made as described above, and also the working pipe 320, the conductive electrode 310, and the light emitting part 340 of the working rod 300 are also It can be made as described above.

The working rod 300 is coupled to the handpiece 100 as described above, moves along the longitudinal direction of the handpiece, and the sliding rotator 370 of the working rod 300 moves the movement path of the sliding rotator 370. Yiru is coupled to the handpiece to be rotatable in both directions around the moving axis (S2).

The sliding rotator 370 forms a rear end portion of the operating rod 300. In addition, the sliding rotator 370 may be fixedly coupled to the rear end of the operation pipe 320.

For the movement of the sliding rotator 370 against the handpiece, a first guide groove 151 and a second guide groove 152 forming a pair on the inner surface of the handpiece are formed, and the sliding rotator 370 A guide protrusion 371 inserted into the first guide groove 151 or the second guide groove 152 is formed on the outer surface.

The pair of guide grooves have a constant cross-section along the front-rear direction of the handpiece and are sufficiently long.

The guide projection 371 of the sliding rotator 370 can slide in the front-rear direction while being inserted into the first guide groove 151 of the handpiece, and the guide projection 371 of the sliding rotator 370 is a handpiece. The slide can be moved in the front-rear direction while being inserted into the second guide groove 152.

In addition, the guide rod 371 of the sliding rotator 370 is inserted into the first guide groove 151 of the handpiece 100 (see FIG. 12 (b)). ) To rotate, the guide protrusion 371 of the sliding rotator 370 can be detached from the first guide groove 151, and if it continues to rotate, the guide protrusion 371 can be inserted into the second guide groove 152. (See Fig. 12 (a))

In addition, when the guide protrusion 371 of the sliding rotator 370 is inserted into the second guide groove 152 of the handpiece 100, when the operating rod 300 is rotated against the handpiece 100, the sliding rotator ( The guide protrusion 371 of 370 may be detached from the second guide groove 152, and if it continues to rotate, the guide protrusion 371 may be inserted into the first guide groove 151.

By doing in this way, it is possible to reciprocate the operating rod in the front-rear direction against the handpiece, and also to reciprocate the operating rod against the handpiece.

In the foregoing, although specific embodiments of the present invention have been described and illustrated, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is obvious to those who have it. Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and the modified embodiments should belong to the claims of the present invention.

1: electrosurgical instrument 10: voltage control unit
20: ground pad
100: Handpiece 110: Front sleeve
120: slide groove 200: cable
300: working rod 310: conductive electrode
320: working pipe 330: rotator
331: screw bone
340: light emitting unit 350: connection bar
400: connector 410: rear terminal portion
411: Second conductor 412: Second insulating film
413: 2nd cover film 414: 1st reinforcing film
415: first terminal 420: front terminal
421: Third conductor 422: Third insulating film
423: Third cover film 424: Second reinforcement film
425: second terminal
430: Deformation part 431: First conductor
432: 1st insulating film 433: 1st cover film
434: Third reinforcing film
500: Slider 510: Slide projection
520: rotating projection
600: collet 610: first deformation hole
620: collet projection 630: second deformation hole
700: fixing nut 710: fixing projection
720: pressure jaw

Claims (12)

It is an electrosurgical instrument used for electrosurgery,
A handpiece having a predetermined length and having an accommodation space therein;
A cable coupled to the rear of the handpiece in the longitudinal direction to transmit electrical energy;
A slider coupled to the handpiece and moving along the longitudinal direction of the handpiece;
A working rod including a rotator coupled to the slider and a conductive electrode at least partially protruding toward the front of the handpiece so as to be rotatable in both directions around a moving axis constituting a movement path of the slider; And
Included in the accommodation space, a conductor electrically connecting the cable and the conductive electrode, and a non-conductive film coupled to both sides of the conductor so that the conductor is shielded, and at least a part of the flexible printed circuit (Flexible Printed Circuit) Board, FPCB) is made of a spiral (helical) type or screw (helical) type electrosurgical instruments including a connector that is variable in overall length. According to claim 1,
A spiral screw bone is formed on one of the slider and the rotator, and a rotating protrusion inserted into the screw bone is formed on the other.
The length of the screw bone, the electrosurgical mechanism is made so that the maximum rotation angle of the operating rod based on the slider is limited to any angle greater than 0 ° and less than 450 °. According to claim 1,
An electrosurgical mechanism in which one of the handpiece and the slider is formed with a slide groove parallel to the moving shaft and the other is inserted into the slide groove and formed with a slide projection moving in a direction parallel to the moving shaft. According to claim 1,
The slider is made of a cylindrical penetrating in the front-rear direction,
On one of the inner circumferential surface of the handpiece and the outer circumferential surface of the slider, a slide groove parallel to the movement axis is formed, and on the other, a slide projection is inserted into the slide groove and moves in a direction parallel to the movement axis,
The rotator is screwed into the slider while being inserted into the slider,
The front end of the connector is an electrosurgical instrument coupled to the rear end of the rotator. It is an electrosurgical instrument used for electrosurgery,
A handpiece having a predetermined length and having an accommodation space therein;
A cable coupled to the rear of the handpiece in the longitudinal direction to transmit electrical energy;
A sliding rotator coupled to the handpiece coupled to the handpiece so as to move along the longitudinal direction of the handpiece and rotate in both directions around a moving axis forming a movement path, and at least a portion of the handpiece protruding toward the front of the handpiece A working rod comprising an electrode; And
Included in the accommodation space, a conductor electrically connecting the cable and the conductive electrode, and a non-conductive film coupled to both sides of the conductor so that the conductor is shielded, and at least a part of the flexible printed circuit (Flexible Printed Circuit) Board, FPCB) is made of a spiral (helical) type or screw (helical) type electrosurgical instruments including a connector that is variable in overall length. According to claim 1,
A collet formed in a pipe shape and surrounding a part of the outer circumferential surface of the operating rod, the collet having a first deformed hole which is a hole penetrated along the circumferential direction; And
It is rotatably coupled to the outer circumferential surface of the front end of the handpiece, and includes a fixing nut that presses the collet backward when rotating,
The collet is an electrosurgical mechanism that, when pressed by the fixing nut, bends in the first deformed hole portion, and frictional force is generated or increased while the inner circumferential surface is in close contact with the outer circumferential surface of the working rod. The method of claim 6,
The collet,
A collet protrusion protruding forward from the side where the first deformation hole is formed among the front end rims to contact the fixing nut; And
An electrosurgical instrument comprising a second deformed hole that is a hole penetrated along the circumferential direction and is provided on the opposite side of the circumferential surface where the first deformed hole is formed. The method of claim 7,
The handpiece includes a front sleeve into which the collet is inserted so that the collet protrusion is exposed forward,
A concave fixing groove is formed on an outer circumferential surface of the front sleeve, and the fixing groove is a first groove, a second groove spaced apart from the first groove in a circumferential direction, and positioned behind the first groove, and the first groove And a third groove connecting the second groove,
The fixing nut,
A fixing protrusion protruding inward from the inner circumferential surface, inserted into the fixing groove, and movable along a path formed by the first groove, the second groove, and the third groove; And
An electrosurgical instrument including a pressing jaw protruding inward from the front of the fixed protrusion to press the collet protrusion. The method according to any one of claims 1 to 8,
The connecting body,
A rear terminal portion coupled to the cable side and having a terminal exposed on one surface;
A front terminal portion coupled to the working rod side and having a terminal exposed on one surface; And
It includes a deformed portion made of a non-conductive film coupled to both sides to electrically connect the rear terminal portion and the front terminal portion by a first conductor, and shield the first conductor in the center,
An electrosurgical instrument made of the deformed portion having a spiral shape, and having flexibility and elasticity. The method of claim 9,
The deformation portion, the diameter of the spiral becomes smaller toward the front terminal portion from the rear terminal portion, the deformation portion overlaps with each other in a state that is not elastically deformed,
When the rear terminal portion, the front terminal portion, and the deformed portion are extended to form the same plane, when the longitudinal direction of the deformed portion is referred to as a first direction, the rear terminal portion and the front terminal portion are bent or bent in the first direction, but opposite to each other Facing
The deformation portion, 50 ~ 200㎛ thickness, 3 ~ 15㎜ in width, 150 ~ 400㎜ in length, the electrosurgical instrument, characterized in that the number of times the spiral wound 10 to 25 times. The method of claim 9,
The deformation portion,
The first conductor made of electrolytic copper or rolled annealed copper;
Consists of a polyimide (Polyimide, PI) or polyester (polyethyleneterephthalate, PET) comprising a first insulating film and a first cover film coupled to both sides around the first conductor,
The rear terminal portion,
A second conductor made of electrolytic copper foil or rolled copper foil;
A second insulating film and a second cover film made of polyimide or polyester and coupled to both sides around the second conductor;
A first reinforcing film made of polyimide, glass epoxy or polyester and coupled to the second insulating film; And
And a first terminal connected to the second conductor from the opposite side of the first reinforcing film,
The front terminal portion,
A third conductor made of electrolytic copper foil or rolled copper foil;
A third insulating film and a third cover film made of polyimide or polyester and coupled to both sides around the third conductor;
A second reinforcing film made of polyimide, glass epoxy or polyester and coupled to the third insulating film; And
And a second terminal connected to the third conductor from the opposite side of the second reinforcing film. The method of claim 9,
The electrical energy delivered to the conductive electrode is radio frequency (RF) electrical energy,
The conductive electrode is monopolar,
The working rod,
An insulator, a pipe formed in a pipe shape to receive a rear portion of the conductive electrode; And
An electrosurgical instrument further coupled to one side of the operating pipe to irradiate light and receive electric energy through the connecting body.

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