KR102426452B1 - switching structure of handpiece having double surgical blade - Google Patents

Abstract

The present invention relates to an electrosurgical handpiece. In particular, in order to selectively supply current to each blade of a conductive electrode composed of a double blade, the surgeon can use the double blade only by rotating the blade without operating a separate switch. It relates to a switching structure of a handpiece configured to selectively supply current.

Description

Switching structure of handpiece having double surgical blade

The present invention relates to an electrosurgical handpiece. In particular, in order to selectively supply current to each blade of a conductive electrode composed of a double blade, the surgeon can use the double blade only by rotating the blade without operating a separate switch. It relates to a switching structure of a handpiece configured to selectively supply current.

An iron scalpel makes a clean incision, but has no blood clotting effect.

That is, the iron surgical scalpel bleeds until the tissue incision is finished or the blood in the area is naturally coagulated.

Electrosurgery is a surgical method that uses high frequency (radio frequency) electrical energy to incision, excision, or cauterization of a patient's tissue.

Intracellular vibration is generated by high-frequency electrical energy supplied through the electrode, which increases the temperature in the cell and heats the tissue.

When the intracellular temperature reaches about 60°C, apoptosis occurs, when heated to 60~99°C, tissue drying (dehydration) and protein coagulation proceed, and when the intracellular temperature reaches 100°C, cell volume expansion and vaporization occurs, and in this process, the tissue is incised or cauterized.

In such an electrosurgery, a control unit that generates a high-frequency electric current for tissue incision and cauterization is connected to the handpiece 100 and the grounding pad 10 as shown in FIG. 1 , and the handpiece 100 as shown in FIG. 2 . ) by fastening the conductive electrode 110 to the tissue incision.

The inventor of the present invention develops a conductive electrode 110 composed of a double blade of a first blade 111 and a second blade 113 as shown in FIGS. 3 and 4, thereby providing a first blade 111 and a second blade ( 113), a conductive electrode 110 configured to enable micro-mode micro-electrosurgery and general-mode general electrosurgery by selectively flowing electric current was developed.

The handpiece 100 to which the conductive electrode 110 composed of such a double blade is fastened is a button for supplying current to each blade when the surgeon uses it, and a button for supplying current to all blades for cauterization. The operation is performed by selecting and pressing during the operation, but there is a problem in that it is very cumbersome to press the buttons one by one in the surgical procedure that requires a high degree of concentration.

In addition, the operation should be performed while adjusting the degree of protrusion of the conductive electrode 110 from the handpiece 100 and the rotation angle of the conductive electrode 110 according to surgical conditions such as the depth and angle of the surgical site. And there is a very cumbersome problem for the surgeon to select a button together with the rotation angle adjustment and operate.

Korean Intellectual Property Office Registration Patent Publication No. 10-1566766, "Medical Handpiece" Korean Patent Office Laid-Open Patent Publication No. 10-2016-0087288, "Precision Blade Electric Surgical Instrument" Korean Intellectual Property Office Registration Patent Publication No. 10-0818730, "Surgery headpiece equipped with surgical blade" Korean Patent Office Laid-Open Patent Publication No. 10-2019-0134823, "Tapered precision blade electrosurgical instrument"

The present invention has been devised to solve the above problems, and when electrosurgery is performed with a handpiece to which conductive electrodes composed of double blades are fastened, the surgeon selectively presses each button to selectively supply current to the blades. It is an object of the present invention to provide a switching structure of a handpiece for double blades that is easy to use by rotating a conductive electrode without pressing a button and supplying current only to a specific blade by pressing an operation button.

In order to achieve the above object, the switching structure of the handpiece for dual blades according to the present invention includes: a case 101; a selector 130 in the form of a cylinder that is molded from a non-stick material and slides inside the case 101; a pin contact 137 formed in a semicircular ring shape on one side of the selector 130 as a conductor material and electrically connected to the cable 104; A conductive electrode 110 composed of a double blade is fastened to one side, and a ring-shaped selector fastening groove 123 is formed on the other side so that the selector 130 is inserted, and the selector 130 is rotatable with respect to the selector 130 . ) and the actuating rod 120 that is fastened; A second pogo pin 125 formed on one side of the selector fastening groove 123 and electrically connected to any one of the blades of the conductive electrode 110; and a conductive electrode ( 110) of the first pogo pin 124 electrically connected to the other blade; by being constituted, as the operation rod 120 rotates, the first pogo pin 124 or the second pogo pin 125 is a pin contact 137 In contact with the other pogo pins are configured not to contact the pin contact (137).

At this time, guide grooves 106 formed in the axial direction of the case 101 on both sides of the inner surface of the case 101; and guide protrusions 132 protruding from both sides of the selector 130 and inserted into the guide groove 106 , thereby constraining the rotation of the selector 130 to slide along the guide groove 106 . characterized in that it is composed.

In addition, the pin contact 137 is electrically connected to the cable 104, and the coil cable 140 elastically deformed by twisting a thin film-type cable electrically connects the pin contact 137 and the cable 104. It is characterized in that it is configured to connect.

In addition, it is characterized in that a part of the selector 130 is opened so that the operation rod 120 can be inserted.

In addition, the opening portion is characterized in that formed in the portion opposite to the pin contact (127).

In addition, the central angle of the pin contact 127 is greater than 180 degrees, characterized in that it is formed to be less than 360 degrees.

In addition, a stopper 126 protruding from one side of the selector fastening groove 123; a groove 133 formed in a ring shape on the inner surface of the selector 130 and into which the stopper 126 is inserted; and a protrusion 134 protruding from the groove 133 and in contact with the stopper 126 of the rotating operation rod 120 to restrict the rotation.

The present invention configured as described above does not require the surgeon to selectively press one of the buttons to selectively supply current to the blade when performing electrosurgery with a handpiece to which conductive electrodes composed of double blades are fastened, It is easy to use as current is supplied only to a specific blade by rotating the conductive electrode and pressing one operation button.

That is, if the conductive electrode is rotated according to the surgical environment and only one button is pressed, current is selectively supplied to only one of the double blades or current is supplied to both blades, so it is very easy to use.

1 is a view showing an electrosurgical device.
Figure 2 is a perspective view showing a handpiece according to the present invention.
Figure 3 is a perspective view showing a conductive electrode composed of a double blade.
Figure 4 is a cross-sectional view taken along line AA of Figure 3;
Figure 5 is an exploded perspective view of the handpiece according to the present invention.
Figure 6 is a perspective view separately showing the operating rod constituting the handpiece.
7 is an exploded perspective view showing an operating rod constituting the handpiece.
8 is an exploded perspective view illustrating an enlarged selector and a coil cable fastened to an operating rod;
9 is an enlarged perspective view of a portion configured to slide the operating rod inside the case;
10 is a perspective view separately illustrating a selector fastened to an operation rod;
11 is an exploded perspective view showing a selector fastened to an operating rod;
12 to 14 are views illustrating a state in which current is selectively supplied to a conductive electrode by a selector;
15 is a view showing a state in which the operating rod slides and rotates.
Fig. 16 is a partial perspective view showing a stopper configuration for limiting rotational angular displacement of an operating rod;

Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the present invention and the accompanying drawings.

When it is said that any one component "includes" another component in the detailed description or claims of the invention, it is not construed as being limited to only the component, unless otherwise stated, and other components are not It should be understood that more may be included.

As used herein, terms such as "upper", "lower", "bottom", "front", "rear", "below", etc. are merely for facilitating description of the components as shown in the drawings. refers to orientation.

As shown in FIG. 5, the handpiece 100 according to the present invention is composed of a case 101 and an operation rod 120 to which a conductive electrode 110 is fastened to the front and inserted into the case 101 as shown in FIG. do.

The conductive electrode 110 is configured to be fastened to the operation rod 120 through the head 121 to facilitate replacement.

At this time, according to the surgical environment and the surgical site, the length of the operating rod 120 to which the conductive electrode 110 is fastened as shown in FIG. 10 is adjusted while protruding from the case 101 or accommodated inside the case 101, and the operating rod ( The angle of the conductive electrode 110 is adjusted while the 120 is rotated.

As described above, when the operating rod 120 slides and rotates in the axial direction, the operating rod 120 is connected with the cable 104 and the coil cable 140 so that current can be continuously supplied to the conductive electrode 110 . do.

The coil cable 140 is formed by twisting a thin film-type cable, and when the operating rod 120 slides or rotates, the coil cable 140 elastically deforms and elastically restores the current to the conductive electrode 110 . to be supplied continuously.

In addition, the operation rod 120 is configured to fasten and fix the operation rod 120 to the case 101 by turning and locking the locking member 102 after sliding and rotating in the axial direction. Since the configuration of the locking member 102 is a known technique, a detailed description thereof will be omitted.

As shown in FIGS. 6 and 7, the operation rod 120 has a circular rod-shaped body, one end of which is formed with a head 121 to which the conductive electrode 110 is fastened, and a ring-shaped selector 130 on the other side. The selector fastening groove 123 is formed as a ring-shaped groove so as to be fastened.

In addition, a second pogo pin 125 and a first pogo pin 124 are formed to protrude from one side of the selector fastening groove 123 to the upper and lower portions, respectively, as shown in FIG. 8 .

The first and second pogo pins 124 and 125 protrude into the selector fastening groove 123 due to spring elasticity inside the pin when the portion protruding into the selector fastening groove 123 is inserted into the pin by an external force and the external force is removed. configured to be

The first pogo pin 124 is electrically connected to the first blade 111 of the conductive electrode 110 , and the second pogo pin 125 is electrically connected to the second blade 113 of the conductive electrode 110 . Connected.

The selector 130 has a body 131 formed in a cylindrical shape as shown in FIGS. 10 and 11 , and guide protrusions 132 protruding in the axial direction are formed on both sides of the body 131 to protrude.

In addition, a conductive member 135 formed of a conductive material is fastened to the lower portion of the body 131 formed of a non-conductive material, and a cable contact 136 is formed on one side of the conductive material 135, and a pin contact is formed on the other side. A 137 is formed, and the pin contact 137 is formed in a semicircular ring shape as shown in FIG. 11 .

The selector 130 configured as described above is fastened to the operation rod 120 while being inserted into the selector fastening groove 123 at the rear of the operation rod 120 as shown in FIG. 7 .

At this time, the body 131 of the selector 130 is partially formed in an open shape, so that the operating rod 120 is press-fitted into the open portion, and the selector 130 is inserted into the selector fastening groove 123 of the operating rod 120 . It is preferable to configure it to be easy to fasten.

As shown in FIG. 8 , a second pogo pin 125 and a first pogo pin 124 are respectively formed on the upper and lower portions of the selector fastening groove 123 of the operation rod 120 , and the selector 130 is connected to the operation rod 120 . ), the first pogo pin 124 or the second pogo pin 125 comes into contact with the pin contact 137 of the selector 130 when it is fastened to the selector fastening groove 123 .

And the cable contact 136 of the selector 130 is electrically connected to the selector contact 142 of the coil cable 140 , and the cable contact 141 of the coil cable 140 is electrically connected to the cable 104 . , high-frequency electrical energy generated in the control unit and supplied through the cable 104 is supplied to the conductive electrode 110 through the coil cable 140 , the conductive hole 135 of the selector 130 , and the pogo pin.

Guide protrusions 132 protruding from both sides of the body 131 of the selector 130 are guide grooves 106 that are longitudinally formed on both sides of the inner surface of the case 101 of the handpiece 100 as shown in FIG. 9 . By being inserted into, the selector 130 is configured to slide along the guide groove 106 while not rotating inside the case 101 .

The operation rod 120 coupled to the selector 130 slides along the slide groove 106 of the case 101 .

And the operation rod 120 inserted and fastened to the cylindrical selector 130 is rotatable with respect to the selector 130 .

As described above, while the operation rod 120 is rotated with respect to the selector 130 , current is selectively supplied to the first blade 111 or the second blade 113 of the conductive electrode 110 coupled to the operation rod 120 . do.

In the state of FIGS. 8 and 9 , as shown in FIG. 12 , the first pogo pin 124 of the operation rod 120 is in contact with the pin contact 137 of the selector 130 , and the second pogo pin 125 is It is outside the pin contact 137 .

Since the body 131 of the selector 130 is formed of a non-conductive material, the current supplied through the cable 104 flows to the pin contact 137 of the conductive member 135 of the selector 130 through the coil cable 140, A current is supplied to the first blade 111 of the conductive electrode 110 through the first pogo pin 124 in contact with the pin contact 137 .

When the surgeon rotates the operation rod 120 180 degrees so that the second blade 113 is directed to the lower position in the state of FIG. ) in contact with the pin contact 137 , and the first pogo pin 124 is outside the pin contact 137 .

In the state of FIG. 13 , the current supplied through the cable 104 flows to the pin contact 137 of the conductive port 135 of the selector 130 through the coil cable 140 , and the second second contacting the pin contact 137 . The current is supplied to the second blade 113 of the conductive electrode 110 through the pogo pin 125 .

The first blade 111 of the conductive electrode 110 can quickly cut the surgical site with a high current density, and the second blade 113 is configured to precisely and precisely cut the surgical site with a low current density. , when the operating rod 120 is rotated so that the blade to be used by the surgeon is positioned at the lower portion as described above, a method of rapidly cutting or finely incising can be selected using the blade located at the lower portion.

At this time, the surgeon does not need to selectively press the button to selectively flow current to the first and second blades 111 and 113, and only press one 'operation' button, so it is very easy to use.

When making the incision as described above, the incision is made with the cutting edge of the first blade 111 or the second blade 113 of the conductive electrode 110, but when cauterizing, the wall of the conductive electrode 110 is used.

When cauterizing, current is supplied to both the first and second blades 111 and 113 of the conductive electrode 110. As shown in FIG. 14, when the operation rod 120 is rotated so that the conductive electrode 110 is horizontal, the first pogo pin Current is supplied to the first blade 111 and the second blade 113 while both the 124 and the second pogo pin 125 are in contact with the pin contact 137 of the selector 130 .

In this state, the surgical site is cauterized by using the wall of the conductive electrode 110 .

As described above, the pin contact 137 of the selector 130 is formed in an arc shape of a predetermined angle (central angle), and the angle of the pin contact 137 exceeds 180 degrees and less than 360 degrees, preferably about 330 degrees. to mold

When the angle of the pin contact 137 only exceeds 180 degrees, the first pogo pin 124 and the second pogo pin 125 are in contact with the pin contact 137 at the same time to stably cauterize.

In addition, the angle of the pin contact 137 must be formed to be less than 360 degrees, preferably less than 330 degrees to selectively apply current to the first blade 111 or the second blade 113 when cutting with the conductive electrode 110 . can supply

As described above, the surgeon selects the normal mode or the micro mode and cuts while rotating the operating rod 120 to which the conductive electrode 110 is fastened.

When the surgeon selects a mode during surgery, it is inconvenient to rotate the actuating rod 120 while looking at the direction of the conductive electrode 110, so the mode can be selected through a sense of distinction that can be felt by hand when rotating the actuating rod 120. It is preferable to configure it so that

To this end, as shown in FIG. 16 , a stopper 126 protruding from one side of the selector fastening groove 123 of the operating rod 120 is formed, and the stopper 126 is inserted into one side of the inner surface of the selector 130 so that it can be rotated. A ring-shaped groove 133 is formed, and a protrusion 134 protruding from one side of the groove 133 is formed.

When the operation rod 120 rotates, the stopper 126 rotates together with the operation rod 120 in the groove 133 of the selector 130 and is caught by the protrusion 134 to prevent further rotation.

For example, any one of the first pogo pin 124 or the second pogo pin 125 when the stopper 126 of the operating rod 120 comes into contact with the guide protrusion 132 of the selector 130 and can no longer rotate. If the selector 130 is in contact with the pin contact 137 and the other pogo pins are not in contact with the pin contact 137, the operating rod 120 does not require the surgeon to visually check the conductive electrode 110. If you rotate and stop rotating, you will immediately know which mode you are in.

And when changing from this state to another mode (for example, when changing from normal mode to micro mode), any one of the pogo pins enters the opening of the selector 130 and the pogo pin protrudes due to the elasticity of the internal spring. Alternatively, the surgeon can immediately know that the mode change has been made by vibration.

To this end, as shown in FIGS. 13 and 14 , the open portion of the selector 130 is formed in a portion opposite to the pin contact 137 .

In the present invention configured as described above, when electrosurgery is performed with the handpiece 100 to which the conductive electrode 110 composed of a double blade is fastened, the surgeon selects one of the buttons to selectively supply current to the blade. Without the need to selectively press, the conductive electrode 110 is rotated and when only one operation button is pressed, current is supplied only to a specific blade, so it is easy to use.

That is, if the conductive electrode is rotated according to the surgical environment and only one button is pressed, current is selectively supplied to only one of the double blades or current is supplied to both blades, so it is very easy to use.

The technical idea of the present invention has been reviewed through the above-described embodiments.

It is apparent that those of ordinary skill in the art to which the present invention pertains can variously modify or change the above-described embodiments from the description of the present invention.

In addition, even if not explicitly shown or described, a person of ordinary skill in the art to which the present invention pertains may make various modifications including the technical idea according to the present invention from the description of the present invention. is self-evident, which still falls within the scope of the present invention.

The above embodiments described with reference to the accompanying drawings have been described for the purpose of explaining the present invention, and the scope of the present invention is not limited to these embodiments.

100: handpiece
101: case
102: lock
103: button
104: cable
105: suction pipe
106: guide groove
110: conductive electrode
111: first plate
112: first plug
113: second blade
114: second plug
120: operating rod
121: head
122: inner tube insertion hole
123: selector fastening groove
124: first pogo pin
125: second pogo pin
130: selector
131: body
132: guide turn
133: home
134: turn
135 : challenge bulb
136: cable contact
137: pin contact
140: coil cable
141: cable contact
142: selector contact
150: inner tube

Claims (7)

case 101;
a selector 130 in the form of a cylinder that is molded from a non-stick material and slides inside the case 101;
a pin contact 137 formed in a semicircular ring shape on one side of the selector 130 as a conductor material and electrically connected to the cable 104;
A conductive electrode 110 composed of double blades is fastened to one side, and a ring-shaped selector fastening groove 123 is formed to insert the selector 130 to the other side, and the selector 130 is rotatable with respect to the selector 130 . ) and the actuating rod 120 that is fastened;
A second pogo pin 125 formed on one side of the selector fastening groove 123 and electrically connected to any one of the blades of the conductive electrode 110; and a conductive electrode ( The first pogo pin 124 electrically connected to the other blade of 110; by being composed of,
Double, characterized in that while the operation rod 120 is rotated, the first pogo pin 124 or the second pogo pin 125 is in contact with the pin contact 137 and the other pogo pin is configured not to contact the pin contact 137. Switching structure of handpiece for blade.
According to claim 1,
Guide grooves 106 formed in the axial direction of the case 101 on both sides of the inner surface of the case 101; and
Guide protrusions 132 protruding from both sides of the selector 130 and inserted into the guide grooves 106 are further included, thereby constraining the rotation of the selector 130 and sliding along the guide grooves 106. Switching structure of a handpiece for dual blades, characterized in that.
According to claim 1,
The pin contact 137 is electrically connected to the cable 104,
A switching structure of a double-blade handpiece, characterized in that a coil cable (140) elastically deformed by twisting a thin film-type cable is configured to electrically connect the pin contact (137) and the cable (104).
According to claim 1,
A switching structure of a double blade handpiece, characterized in that a part of the selector (130) is opened so that the operation rod (120) can be inserted.
5. The method of claim 4,
The open portion of the selector (130) is a switching structure of a double blade handpiece, characterized in that formed in the portion opposite to the pin contact (137).
According to claim 1,
The central angle of the pin contact (137) exceeds 180 degrees, the switching structure of the double blade handpiece, characterized in that formed less than 360 degrees.
According to claim 1,
a stopper 126 protruding from one side of the selector fastening groove 123;
a groove 133 formed in a ring shape on the inner surface of the selector 130 and into which the stopper 126 is inserted; and
The switching structure of the double-blade handpiece, characterized in that it further includes a protrusion 134 protruding from the groove 133 to contact the stopper 126 of the rotating operation rod 120 to restrict the rotation. .

Images