KR20170022568A - Operating catheter using plasma - Google Patents

Operating catheter using plasma Download PDF

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Publication number
KR20170022568A
KR20170022568A KR1020150117711A KR20150117711A KR20170022568A KR 20170022568 A KR20170022568 A KR 20170022568A KR 1020150117711 A KR1020150117711 A KR 1020150117711A KR 20150117711 A KR20150117711 A KR 20150117711A KR 20170022568 A KR20170022568 A KR 20170022568A
Authority
KR
South Korea
Prior art keywords
plasma
catheter
conduit
catheter conduit
electrodes
Prior art date
Application number
KR1020150117711A
Other languages
Korean (ko)
Inventor
임재관
Original Assignee
고려대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 고려대학교 산학협력단 filed Critical 고려대학교 산학협력단
Priority to KR1020150117711A priority Critical patent/KR20170022568A/en
Publication of KR20170022568A publication Critical patent/KR20170022568A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1477—Needle-like probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation

Abstract

The present invention relates to a surgical catheter using plasma. The present invention includes: a catheter conduit in which a plurality of power lines are formed; a plurality of first plasma electrodes positioned at a predetermined distance from a distal portion end toward a proximal portion of the catheter conduit inserted into the human body, formed to protrude from the catheter conduit while being at a predetermined distance along an outer diameter of the catheter conduit, and discharging the plasma in response to power supply from the power line; and a plasma switching unit disposed in the proximal portion of the catheter conduit and switching power supply to one of the plurality of power lines such that one of the plurality of first plasma electrodes selectively discharges the plasma. The plurality of first plasma electrodes are formed along the outer diameter of the catheter conduit within a predetermined distance toward the proximal portion from the distal portion end of the catheter conduit and the plasma is applied in a state where a side surface of the catheter conduit is positioned at a lesion site. As a result, an easier and more accurate operation can be performed when the first plasma electrode is positioned at the lesion site. Accordingly, the plasma can be accurately discharged to the lesion site.

Description

[0001] OPERATING CATHETER USING PLASMA [0002]

TECHNICAL FIELD [0001] The present invention relates to a surgical catheter using plasma, and more particularly, to a surgical catheter using plasma in which plasma can be more easily applied to a lesion site to more accurately remove a lesion site.

The heartbeat is performed by sequentially stimulating the heart muscle by an electrical signal periodically generated from a part of the heart. However, if an abnormality occurs in the flow of the electric signal, the heart can not be accurately pulsed. This phenomenon is called arrhythmia.

Atrial fibrillation is the most common persistent arrhythmia and can increase heart rate from 100 to 175 or more per minute. Atrial fibrillation is a frequent occurrence of symptoms (atrial flutter, not normal contractions) and is associated with a number of medical sequelae such as stroke, atrial hemorrhage, and the formation of blood clots.

The treatment of cardiac arrhythmias has changed considerably since the introduction of high frequency currents or plasma-assisted catheter ablation techniques. In catheter ablation techniques, ablation under X-ray control - the catheter is inserted into a single ventricle through the vein or artery, and tissue that causes cardiac arrhythmia by high-frequency currents or plasma is destroyed. Korean Patent Laid-Open No. 10-2007-0027494 discloses an example of a catheter using a high frequency current.

1 is a view showing an example of a surgical catheter 10 using a conventional plasma. 1, a plasma electrode 12 is formed at the distal end of a flexible catheter conduit 11 and is connected to a power supply via a power supply line (not shown) located within the catheter conduit 11 Thereby releasing a plasma to remove a lesion site, for example, a nerve tissue.

Then, the operator inserts the mapping catheter disclosed in Korean Patent Laid-open No. Hei 10-241422 into the inside of the heart to determine the position of the lesion, inserts the surgical catheter 10 into the heart, After the plasma electrode 12 positioned at the distal end of the manipulator 13 is positioned, the plasma is released from the plasma electrode 12 according to the manipulation of the manipulation unit 13, whereby the arrhythmia therapy is performed.

1, the plasma electrode 12 located at the distal end of the catheter catheter 11 has a problem that the plasma electrode 12 is located at a location deep within the heart due to its own characteristics of the catheter catheter 11 It is difficult to accurately position the light emitting diode on the light emitting diode. That is, when the manipulation of the manipulation part 13 is transmitted to the distal end of the catheter conduit 11 along the catheter conduit 11, it is difficult to finely manipulate the distal end of the catheter conduit 11, so that plasma may be applied to parts other than the lesion.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a surgical catheter using plasma, which can more easily remove a lesion by applying plasma to a lesion site more easily.

According to the present invention, there is provided a surgical catheter using plasma, comprising: a catheter conduit in which a plurality of power supply lines are formed; The catheter catheter includes a catheter catheter having a distal end and a proximal end, the catheter catheter having a distal end and a proximal end, A plurality of first plasma electrodes for emitting plasma; And a plasma switching unit provided at a proximal portion of the catheter conduit for switching power supply to any one of the plurality of power supply lines so that any one of the plurality of first plasma electrodes selectively emits plasma. Is achieved by a surgical catheter used.

And a second plasma electrode provided at a distal end of the catheter conduit and adapted to discharge plasma according to a power source applied from any one of the plurality of power lines; The plasma switching unit may be switched to selectively apply power to any one of the plurality of second plasma electrodes and the second plasma electrode.

In addition, the first plasma electrodes may be located at equal intervals along the outer diameter of the catheter conduit.

According to the present invention, according to the present invention, a plurality of first plasma electrodes are formed along the outer diameter of the catheter conduit within a certain distance from the distal end of the catheter conduit in the proximal direction, and the side of the catheter conduit is positioned at the lesion site There is provided a surgical catheter using plasma in which a plasma can be easily and accurately operated to position a first plasma electrode at a lesion site and thereby plasma can be accurately discharged to a lesion site.

1 is a view showing an example of a configuration of a surgical catheter using a conventional plasma,
FIG. 2 is a view illustrating a surgical catheter using plasma according to the present invention,
3 is a cross-sectional view of a first plasma generating part of a surgical catheter using plasma according to the present invention.

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

FIG. 2 is a view showing a surgical catheter 110 using plasma according to the present invention, and FIG. 3 is a cross-sectional view of a first plasma generating part 120 of a surgical catheter 110 using plasma according to the present invention. FIG.

Referring to Figures 2 and 3, a portion of the catheter conduit 110 positioned proximate the practitioner relative to the position of the practitioner is referred to as proximal and a portion of the catheter conduit 110 located relatively far from the practitioner Will be referred to as a distal portion.

The surgical catheter 110 using plasma according to the present invention includes a catheter conduit 110, a first plasma generating portion 120, and a plasma switching portion 131 as shown in FIGS. 2 and 3 do.

The catheter conduit 110 has a length that can enter the body tissue such as the heart along the vein of the subject by reference to the position of the operator. In the present invention, it is assumed that the catheter conduit 110 has a structure that can be inserted into a blood vessel.

In the catheter conduit 110, a plurality of power supply lines 151, 152, 153, and 154 are formed as shown in FIG. In this case, the power supply lines 151, 152, 153, and 154 are independently connected to the first plasma electrodes 121, 122, 123, and 124 of the first plasma generating unit 120 to independently apply power to the first plasma electrodes 121, 122, .

Here, as shown in FIG. 3, at least one channel 111 may be formed in the catheter conduit 110, and the catheter conduit 110 may be used for various purposes.

The first plasma generator 120 is located at a distance from the distal end of the catheter conduit 110 to the proximal side, as shown in FIG. In the present invention, it is assumed that the first plasma generating unit 120 is composed of a plurality of first plasma electrodes 121, 122, 123, and 124.

The plurality of first plasma electrodes 121, 122, 123, and 124 are protruded from the catheter conduit 110 with a predetermined spacing along the outer diameter of the catheter conduit 110, as shown in FIG. As described above, the catheter is independently connected to the power lines 151, 152, 153, and 154 formed along the inside of the catheter conduit 110 to discharge the plasma according to the application of the power through the power lines 151, 152, 153 and 154.

In the present invention, four first plasma electrodes 121, 122, 123, and 124 are located at equal intervals along the outer diameter of the catheter conduit 110, but two or three first plasma electrodes 121, 122, 123, and 124, 1 plasma electrodes 121, 122, 123, and 124 may be provided.

The plasma switching unit 131 is installed on the proximal portion of the catheter conduit 110. In the present invention, as shown in FIG. 2, the plasma switching unit 131 is installed on the operation unit 130 as an example. When the operator switches the plasma switching unit 131, power is supplied to the first plasma electrodes 121, 122, 123, and 124 through the power lines 151, 152, 153, and 154 connected to any one of the first plasma electrodes 121, Plasma can be emitted from the first plasma electrodes 121, 122, 123, and 124.

According to the above-described configuration, the operator can move the distal end of the catheter conduit 110 toward the lesion position while inserting the catheter conduit 110 of the surgical catheter 110 according to the present invention into the human body. 1 plasma electrodes 121, 122, 123, and 124 emit plasma in a state where the plasma electrodes 121, 122, 123, and 124 are located at the lesion positions, so that the plasma can be more accurately discharged to the lesion site through an easier operation procedure.

The surgical catheter 110 according to the present invention may further include a second plasma electrode 140 provided at a distal end of the catheter conduit 110, as shown in FIG.

The second plasma electrode 140 emits plasma according to a power source applied from any one of the plurality of power source lines 155 inside the catheter conduit 110. At this time, the plasma switching unit 131 is provided to selectively apply power to any one of the second plasma electrode 140 and the second plasma electrode 140.

According to the above configuration, the plasma can be discharged using the second plasma electrode 140 at the lesion position where the distal end of the catheter conduit 110 can be easily accessed during the movement of the catheter conduit 110, It is possible to more easily and accurately discharge the plasma to the lesion site through selective use of the electrodes 121, 122, 123, and 124 and the second plasma electrode 140.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be exemplary and explanatory only and are not to be construed as limiting the scope of the inventive concept. And it is obvious that it is included in the technical idea of the present invention.

100: surgical catheter 110: catheter catheter
111: channel 120: first plasma generator
121, 122, 123, and 124: a first plasma electrode
130: Operation part 131: Plasma switching part
140: second plasma electrode
151, 152, 153, 154, 155: power line

Claims (3)

In a surgical catheter using plasma,
A catheter conduit in which a plurality of power supply lines are formed;
The catheter catheter includes a catheter catheter having a distal end and a proximal end, the catheter catheter having a distal end and a proximal end, A plurality of first plasma electrodes for emitting plasma;
And a plasma switching unit installed at a proximal portion of the catheter conduit for switching power supply to any one of the plurality of power supply lines so that one of the plurality of first plasma electrodes selectively emits plasma. Catheter used for surgery.
The method according to claim 1,
And a second plasma electrode provided at a distal end of the catheter conduit and emitting a plasma according to a power source applied from any one of the plurality of power lines;
Wherein the plasma switching unit is switched to selectively apply power to any one of the plurality of second plasma electrodes and the second plasma electrode.
The method according to claim 1,
Wherein the first plasma electrode is located at equal intervals along an outer diameter of the catheter conduit.
KR1020150117711A 2015-08-21 2015-08-21 Operating catheter using plasma KR20170022568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150117711A KR20170022568A (en) 2015-08-21 2015-08-21 Operating catheter using plasma

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150117711A KR20170022568A (en) 2015-08-21 2015-08-21 Operating catheter using plasma

Publications (1)

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KR20170022568A true KR20170022568A (en) 2017-03-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101965766B1 (en) * 2018-12-17 2019-04-04 의료법인 명지의료재단 Medical electrocautery
KR20190045625A (en) * 2017-10-24 2019-05-03 한양대학교 산학협력단 Plasma Treatment Device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190045625A (en) * 2017-10-24 2019-05-03 한양대학교 산학협력단 Plasma Treatment Device
KR101965766B1 (en) * 2018-12-17 2019-04-04 의료법인 명지의료재단 Medical electrocautery
WO2020130414A1 (en) * 2018-12-17 2020-06-25 의료법인 명지의료재단 Medical electrocautery device

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