KR20200097981A - Electrosurgical pencil - Google Patents

Abstract

The present invention relates to an electrosurgical pencil which comprises: a main body housing having a cutting button, a coagulation button, a through hole penetrating a first end portion, and a cable connected to a second end portion; a conductor extending to be installed in the through hole inside the main body housing and supplying high frequency current through the cable; an electrode shaft having a part inserted into the conductor through the through to move forward and backward, enabling a cutting or a coagulation operation to be performed through the high frequency current provided through the cable, and composed of an electrode that is in contact with a surgical site and a body that is not in contact with the surgical site; a first friction member fixedly installed on the body of the electrode shaft and attached to the conductor; and a contact member fixedly installed on the body of the electrode shaft and making contact with the conductor so that the electrode shaft and the conductor are electrically connected to each other. According to the present invention, an operating surgeon can quickly perform surgery by adjusting the length of an electrode part.

Description

Electric surgery pencil{ELECTROSURGICAL PENCIL}

The present invention relates to a handpiece used in an electrosurgical device, and specifically, to an electrosurgical pencil having an electrode shaft that is generally in the form of a pencil and is adjustable in length.

An electro-surgical unit (ESU) called bovie because a person named Bovie first developed and applied an electrosurgical device. When a high-frequency current passes through the human body, the ESU (Electro-surgical Unit) does not give an electric shock or stimulation to the muscles. Coagulation (or hemostasis, coagulation) to prevent or reduce bleeding or cutting a part of human tissue during surgical operation by transmitting a waveform of 300kHz~3MHz, 1~10kv to the handpiece using the principle of generating heat For this purpose, high-frequency current is generated and supplied to the electrode of the surgical instrument, and the current supplied into the living body through the tip of the electrode of the surgical instrument flows back to the counter plate and is refluxed back to the surgical instrument body. At this time, incision and coagulation are performed by the high-frequency current supplied to the surgical electrode.

Most of these surgical electrodes are composed of a handle part that allows a doctor to hold it by hand and an electrode part connected to the handle part.

The surgical electrode is invaded into the body during surgery, and a cutting or coagulation operation is performed by contacting the surgical site, and the length of the electrode portion must be changed depending on where the surgical site is located. For example, when the distance from the incision point to the surgery point is close, the length of the electrode invading the body should be short, and when the distance from the incision point to the surgery point is long, the length of the electrode invading into the body should be lengthened.

For this reason, the electrode part of the surgical device electrode used in the electrosurgical device has each product for each length, and the operator connects the electrode part of the length suitable for the distance of the surgery point to the handle part whenever necessary. In other words, the electrode part is replaced according to the distance of the surgery point.

The use of such replacement of the electrode part causes inconvenience during urgent surgery and poses a risk to both the patient and the doctor.

1. Registered Patent Publication No. 10-1527918 (published date, 2009.03.04.) 2. Unexamined Patent Publication No. 10-2016-0029015 (published date, 2016.03.14.)

The problem to be solved by the present invention is to provide a pencil for electrosurgical surgery that does not require replacement of the electrode portion regardless of the location (distance) of the surgery point.

In addition to the above problems, the embodiments according to the present invention may be used to achieve other tasks not specifically mentioned.

In the electrosurgical pencil according to an embodiment of the present invention for solving the above problem, a cutting button and a coagulation button are installed, a through hole penetrating through the first end is formed, and a cable is connected to the second end, and the body housing A conductor pipe extended to the through hole and supplied with a high-frequency current through the cable, and a part of the conductor pipe is inserted into the conductor pipe through the through hole to enable movement forward or backward, and the cable A cutting or coagulation operation is possible through a high-frequency current provided through the electrode shaft, which is composed of an electrode in contact with the surgical site and a body that does not contact the surgical site, and a material fixedly installed on the body of the electrode shaft and adhered to the conductor tube. 1 friction member, and a contact member fixedly installed on the body of the electrode shaft and in contact with the conductor pipe to electrically connect the electrode shaft and the conductor pipe.

The electrosurgical pencil according to an embodiment of the present invention may further include a second friction member installed at the through hole side to act as a movement resistor when the electrode shaft moves.

The body of the electrode shaft is entirely covered with an insulator, but a portion connected to the contact member is not covered with the insulator.

In the electrosurgical pencil according to another embodiment of the present invention for solving the above problem, a cutting button and a coagulation button are installed, a through hole penetrating through the first end is formed, and a cable is connected to the second end of the body housing, the body A conductor pipe extended to the through hole in the housing and supplied with a high-frequency current through the cable, a part of the conductor pipe inserted through the through hole to be installed to move forward or backward, and the cable An electrode shaft consisting of an electrode in contact with the surgical site and a body that does not contact the surgical site, and a stopper installed on the side of the through hole to prevent movement of the electrode shaft The mainspring spring performing the role of, a push button for freeing the movement of the electrode shaft by applying a force to the mainspring spring, and the electrode shaft and the conductor pipe fixedly installed on the body of the electrode shaft and in contact with the conductor pipe It includes a contact member that enables it to be electrically connected.

According to one embodiment of the present invention, the operator can easily and quickly perform surgery by adjusting the length of the electrode part regardless of the position of the patient's surgery point.

1 is an external view of an electrosurgical pencil according to an embodiment of the present invention.
2 is an external view showing features of an electrosurgical pencil according to an embodiment of the present invention.
3 is a side cross-sectional view of an electrosurgical pencil according to an embodiment of the present invention.
4 is a view for explaining the electrode shaft of the electrosurgical pencil according to an embodiment of the present invention.
5 is a view showing the main configuration of an electrosurgical pencil according to an embodiment of the present invention.
6 is a view showing the main configuration of an electrosurgical pencil according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. The present invention may be implemented in various forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and the same reference numerals are used for the same or similar components throughout the specification. In addition, in the case of a well-known technology, a detailed description thereof will be omitted.

In the present specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, terms such as "... unit" and "module" described in the specification mean units that process at least one function or operation, which may be implemented by hardware or software, or a combination of hardware and software.

Hereinafter, a pencil for electrosurgery according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is an external view of an electrosurgery pencil according to an embodiment of the present invention, (a) is a side view, (b) is a top view.

Referring to FIG. 1, an electrosurgical pencil 100 according to an embodiment of the present invention is a device corresponding to a handpiece of an electrosurgical device (ESU) in the form of a pencil as a whole, and an electrode at the first end of the body housing 110 The shaft 120 is fastened, the cable part 150 is installed at the second end, and the cutting button 130 and the solidification button 140 are installed on a part of the outer surface of the main body housing 110.

The cable unit 150 includes a connector 151 having a ground terminal, a first terminal, and a second terminal, and a connector 151 and a cable 152 connected to a second end of the main body housing 110, respectively.

The main body housing 110 has a cylindrical shape that is long in the longitudinal direction, and is formed so that the width becomes narrower toward the first end. In addition, the main body housing 110 has a through hole (refer to FIG. 3) penetrating the first end so that the electrode shaft 120 is inserted therein and moves forward and backward.

The electrode shaft 120 is for cutting by contacting tissues such as blood vessels during surgery or for coagulating blood at the cut site, and is made of a conductor material through which high-frequency current provided through the cable 150 can be conducted.

The cutting button 130 is a button for supplying a high frequency current for cutting to the electrode shaft 120 through the ground terminal and the first terminal of the connector 151, and the solidification button 140 is connected to the ground terminal of the connector 151 It is a button to supply a high-frequency current for solidification to the electrode shaft through the second terminal.

On the other hand, the length (L1) of the portion exposed to the outside of the main body housing 120 in the state where the electrode shaft 120 is inserted into the main body housing 120 at its maximum is the closest and optimal length that can be performed during surgery. It is designed, preferably 2 cm to 5 cm.

2 is an external view showing the characteristics of an electrosurgical pencil according to an embodiment of the present invention, and is for a case in which the electrode shaft is advanced to the maximum. Referring to FIG. 2, a feature of the electrosurgical pencil 100 according to an embodiment of the present invention is that the electrode shaft 120 can be moved forward and backward.

This prevents the replacement of a product with a different length of the electrode shaft when the location of the surgical site varies depending on the incision during surgery. That is, the operator can adjust the length (L1) of the portion exposed to the outside of the body housing 110 according to the position of the operation point by moving the electrode shaft 120 forward or backward.

In FIG. 2, the length L2 is the longest length of the electrode shaft 120 exposed to the outside of the body housing 110, and is preferably 13cm to 17cm.

On the other hand, when manufacturing a configuration for varying the length of the exposed portion of the electrode shaft 120, in particular, two points should be considered.

First, the electrode shaft 120 should not be moved backward into the main body housing 110 due to contact with the affected part during the operation by moving the electrode shaft 120 forward. And secondly, even if the electrode shaft 120 moves forward or backward, a high frequency current must be supplied to the electrode shaft 120.

Hereinafter, a main configuration of an electrosurgical pencil according to an embodiment of the present invention that satisfies these considerations will be described.

3 is a side cross-sectional view of an electrosurgical pencil according to an embodiment of the present invention. Referring to FIG. 3, an internal space 112 is formed in the body housing 110, and a through hole 111 is formed in connection with the space 112.

In the inner space 112, a cylindrical conductor tube 160 into which a part of the electrode shaft 120 is inserted is installed, and a support member (not shown in the drawing) for fixing and supporting the conductor tube 160 is installed. The conductor tube 160 is made of a material through which current can flow, and is electrically connected to the conductor line in the cable 152 so that a high frequency current for cutting or a high frequency current for solidification flows.

Further, the friction members 180a and 180b inserted into the conductor tube 160 are in close contact with one end of the electrode shaft and are fixedly installed, and a contact member 170 is installed between the friction members 180a and 180b. .

Here, the friction members 180a and 180b are manufactured in a donut shape so as to be closely fixed to the circular electrode shaft 120 and move together with the electrode shaft 120 in association with the forward or backward movement of the electrode shaft 120. At this time, the friction members 180a and 180b are manufactured to be in close contact with the conductor tube 160 so that frictional force with the conductor tube 160 is formed when the electrode shaft 120 is moved. The friction members 180a and 180b are made of rubber or silicone.

The friction member may be composed of one or a plurality, and the friction force may be increased or decreased by adjusting the size of the area in close contact (contact) with the conductor tube 160. For example, in the case of increasing the frictional force, the size of the area in close contact with (contact) the conductor tube 160 may be increased.

The friction member 180c that is not installed in the conductor tube 160 is fixedly installed in the through hole 111 and acts as a movement resistor with the moving electrode shaft 120. The friction member 180c may be omitted in some cases.

These friction members (180a, 180b, 180c) advance the electrode shaft (120) during the operation, the first consideration that the electrode shaft (120) should not be moved backward into the body housing (110) due to contact with the affected part. Satisfy

The contact member 170 is fixedly installed on the electrode shaft 120 and is installed so that a part of the contact member is always in contact with the conductor tube 160, and moves together with the electrode shaft 120 in association with the movement of the electrode shaft 120. The contact member 170 satisfies the second consideration that a high-frequency current must be supplied to the electrode shaft 120 even when the electrode shaft 120 is advanced or reversed.

4 is a view for explaining the electrode shaft of the electrosurgical pencil according to an embodiment of the present invention.

Referring to Figure 4 (a), the electrode shaft 120 is in contact with the surgical site, the electrode 121 in the form of a flat plate or needle, and is composed of a cylindrical body 122 without contact with the surgical site. .

However, if the electrode shaft 120 is composed of only a conductor, the entire electrode shaft 120 is heated by a high-frequency current, and accordingly, the main body housing 110 and the friction members 180a and 180b in contact with the electrode shaft 120 are heated. Damaged by

For this reason, the body 122 of the electrode shaft 120 is coated with an insulating material such as PVDF (polyvinylidene difluoride) or PTFE (polytetrafluoroethylene). However, the portions 122a and 122b of the body 122 of the electrode shaft 120 to which the contact member 170 is fixedly installed are not coated with an insulator material to electrically connect the electrode shaft 120 and the conductor tube 160. . In (a) of FIG. 4, a portion of the body 122 that is marked black is a portion coated with an insulating material.

On the other hand, as shown in (b) of Figure 4, the electrode shaft 120 is marked with a scale 10 and a number 20 on the body 122 so that the operator (operator) can check the length that goes out to the outside. Can be. At this time, at least one of the scale 10 and the number 20 may be formed to protrude in an embossed shape as shown in (c) of FIG. 4.

In this way, if at least one of the scale 10 and the number 20 is formed to protrude, one of the lateral sides of the through hole 111 in the longitudinal direction corresponding to the protruding scale 10 or the number 20 By forming a guide groove (not shown) so that the scale 10 or the number 20 protruding through the guide groove is located, it is possible to prevent the electrode shaft 120 from rotating during a surgical operation.

5 is a view showing the main configuration of an electrosurgery pencil according to an embodiment of the present invention. Referring to FIG. 5, the electrode shaft 120 is installed through the cylindrical conductor tube 160. At this time, the left end of the electrode shaft 120 and the left end of the electrode shaft 120 are positioned at the same position.

The friction member 180a is fixedly installed on the left side of the conductor portion 122a of the body 122, and the friction member 180b is fixedly installed on the right side of the conductor portion 122b.

In addition, the contact member 170 has a cylindrical shape around both ends and protrudes in a half-moon shape so that the center portion contacts the conductor tube 160, and a through groove through which the electrode shaft 120 can penetrate is installed. The contact member 170 is installed so that both ends are fixed to the conductor portions 122a and 122b of the body 122.

6 is a view showing the main configuration of an electrosurgical pencil according to another embodiment of the present invention. An electrosurgical pencil according to another embodiment of the present invention is a form in which a spring 190 is added as a friction member. Of course, the friction members 180a, 180b, 180c can be removed and manufactured to use only the spring 190.

The spring 190 is installed on the outside of the conductor pipe 160 as shown in (a) of FIG. 6. For example, the spring 190 is installed on the through hole 111 side, and a push button (not shown) is installed above the installed.

The spring 190 is installed so as to be positioned between the protruding scale 10 or the number 20 as shown in (b) of FIG. 6 to act as a stopper, not a friction member, and thus an electrode shaft ( 120) do not reverse medially during surgery.

The mainspring spring 190 is wound with one iron core or an iron plate in a mainspring form at the center to form a circular space, and one end (A) is mechanically connected to a push button (not shown), and the other end (B) is fixed to the main body housing 110. The electrode shaft 120 is fitted in the circular space of the spring 190.

Looking at the operation of the spring 190, the spring 190 is caught between the scale 10 or the number 20 to prevent the movement of the electrode shaft 120 in a state in which the push button is not pressed. In this state, when the push button is pressed, a force acts on the spring spring 190 to increase the circular space of the spring 190 to deviate from the scale 10 or the number 20, thereby allowing the user to (120) makes it easy to move.

Although the implementation of the present invention has been described in detail above, the scope of the present invention is not limited thereto, and a form modified and improved by a person of ordinary skill in the field to which the present invention pertains is also the right of the present invention. Belongs to the range.

100: electrosurgery pencil 110: main body housing
120: electrode shaft 130: cut button
140: coagulation button 150: cable part
160: conductor pipe 170: contact member
180a, 180b, 180c: friction member 190: manual spring

Claims (4)

A body housing in which a cutting button and a solidification button are installed, a through hole penetrating through the first end is formed, and a cable is connected to the second end,
A conductor pipe extended and installed in the through hole in the body housing and supplied with a high-frequency current through the cable,
A part is inserted into the conductor tube through the through hole and installed to move forward or backward, and cutting or coagulation is possible through the high-frequency current provided through the cable, and electrodes and surgery in contact with the surgical site An electrode shaft composed of a body that does not contact the part,
A first friction member fixedly installed on the body of the electrode shaft and in close contact with the conductor tube, and
An electrosurgical pencil comprising a contact member fixedly installed on the body of the electrode shaft and in contact with the conductor tube to electrically connect the electrode shaft and the conductor tube. In claim 1,
An electrosurgical pencil further comprising a second friction member installed on the side of the through hole to act as a movement resistor when the electrode shaft moves. In claim 1,
The body of the electrode shaft is covered with an insulator as a whole, and a part connected to the contact member is not coated with the insulator. A body housing in which a cutting button and a solidification button are installed, a through hole penetrating through the first end is formed, and a cable is connected to the second end,
A conductor pipe extended and installed in the through hole in the body housing and supplied with a high-frequency current through the cable,
A part is inserted into the conductor tube through the through hole and installed to move forward or backward, and cutting or coagulation is possible through the high-frequency current provided through the cable, and electrodes and surgery in contact with the surgical site An electrode shaft composed of a body that does not contact the part,
A spring installed on the side of the through hole and serving as a stopper preventing movement of the electrode shaft,
A push button to freely move the electrode shaft by applying a force to the spring, and
An electrosurgical pencil comprising a contact member fixedly installed on the body of the electrode shaft and in contact with the conductor tube to electrically connect the electrode shaft and the conductor tube.

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