KR20230059981A - A Surgical Tool with an Electrical Incision Integrated with a Ultrasound Cutting - Google Patents

Abstract

The present invention relates to a surgical tool using electrical incision and ultrasonic cutting methods. The surgical tool using electrical incision and ultrasonic cutting methods comprises: a heating module (10) which is formed with a cutting tip (11) to which high frequency or ultrasonic waves can be selectively applied; and a scissors module (20) which is detachably coupled to the heating module (10).

Description

Electrical incision and ultrasonic cutting method {A Surgical Tool with an Electrical Incision Integrated with a Ultrasound Cutting}

The present invention relates to an electrical incision and ultrasonic ablation type surgical tool, and more particularly, to an electrical incision and ultrasonic ablation type surgical tool that allows selective application of an electrical incision function and an ultrasonic cutting function by applying a high frequency.

In the course of surgery, human tissue, such as blood vessels, needs to be cut, and after coagulation is performed for hemostasis before the cutting portion, the specified portion can be cut by an appropriate cutter. For example, in the course of laparoscopic surgery, a blood vessel or a part of a body part similar thereto needs to be cut, and for this purpose, a surgical tool such as an ultrasonic cutting machine or a high frequency cutting machine may be used. For example, International Publication No. WO 2011/097469 discloses an electrosurgical device that cuts tissue by applying high-frequency energy. WO 2010/120944 also discloses a thermally adjustable surgical instrument made of an electrical conductor with a ferromagnetic coating. When electromagnetic waves such as high frequency are applied to the cutting part, it can be converted into heat and solidified in the cutting part. Since the cutting part becomes a human body part, it is advantageous that the solidified part is converted into heat at a high speed with a minimum. In the case of electric cutting by applying high frequency, it has the advantage of being structurally simple and convenient to use. However, it has a disadvantage that the cutting area is relatively large and heat is transferred to the surrounding area, which may cause damage to a non-surgical area. In contrast, ultrasonic cutting has the advantage of preventing damage to the surrounding area while enabling rapid cutting. Therefore, it is advantageous that the cutting means is selectively used according to the surgical site. For example, when cutting is not required, it is advantageous to cut by high frequency, and to apply ultrasonic waves when cutting is required. However, the prior art or known art does not disclose a surgical tool having such a function.

The present invention is to solve the problems of the prior art and has the following object.

Prior art 1: WO 2010/120944 (Asclab AG, published on August 11, 2011) Laparoscopic high-frequency surgical device Prior art 2: WO 2010/120944 (Domain Surgical, Inc. published on October 21, 2010) induction heated surgical instrument

An object of the present invention is to provide a surgical tool of electrical incision and ultrasonic cutting method capable of selecting an electrical incision method and an ultrasonic cutting method.

According to a preferred embodiment of the present invention, a surgical tool of electric incision and ultrasonic cutting method is a heating module formed with a cutting tip to which high frequency or ultrasonic waves can be selectively applied; and a scissor module detachably coupled to the heating module.

According to another preferred embodiment of the present invention, high frequency is applied while the scissors module is separated, and ultrasonic wave is applied when the scissors module is coupled.

According to another preferred embodiment of the present invention, the scissors module includes a contact tip formed while operating scissors rotatable with respect to the heating module; and a fixing hook fixed to the heating module.

The electrical incision and ultrasonic cutting surgical tool according to the present invention is in the form of scissors in which two detachable modules are combined so that the electric cutting method or the ultrasonic cutting method is selectively applied. Specifically, the heating module may be used alone in a surgical procedure requiring incision and coagulation. In contrast, when incision, solidification, and cutting are required, ultrasonic waves may be applied to the cutting portion while the scissors module is coupled. By this selective structure, an appropriate incision or cutting method is applied according to the surgical site. The surgical tool according to the present invention has the advantage that the advantages of both the electric incision method and the ultrasonic cutting method are utilized.

1 shows an embodiment of a surgical tool of electric incision and ultrasonic cutting method according to the present invention.
2 shows an embodiment of a separation structure of a surgical tool according to the present invention.
Figure 3 shows an embodiment of the cutting structure of the surgical tool according to the present invention.
Figure 4 shows an embodiment of the operating structure of the surgical tool according to the present invention.

Below, the present invention will be described in detail with reference to the embodiments presented in the accompanying drawings, but the embodiments are for a clear understanding of the present invention, and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so repeated descriptions are not made unless necessary for understanding the invention, and well-known components are briefly described or omitted, but the present invention It should not be understood as being excluded from the embodiment of.

1 shows an embodiment of a surgical tool of electrical incision and ultrasonic cutting method according to the present invention.

Referring to FIG. 1, a heating module 10 having a cutting tip 11 to which high frequency or ultrasonic waves can be selectively applied; and a scissor module 20 detachably coupled to the heating module 10 .

The surgical tool consists of a heating module 10 that incises or coagulates a surgical site by applying high frequency or ultrasonic waves, and a scissors module 20 that is detachably coupled to the heating module 10 and used in a cutting or cutting process. In the case where the procedure can be performed only by incision and coagulation during the surgical procedure, the scissors module 20 is not coupled to the heating module 10, and the procedure can be performed only by the heating module 10. In this case, high frequency may be applied. In contrast, when a cutting or cutting process is required, the scissors module 20 may be coupled to the heating module 10, and the scissors module 20 may be detachably coupled to the heating module 10. In this case, ultrasound may be applied. However, high frequency or ultrasound may be applied regardless of incision or cutting depending on the surgical site. The heating module 10 may have a pencil shape as a whole, and the cut or cut portion may be incised and solidified according to the application of high frequency or ultrasonic waves, and the solidified portion may be selectively cut. The heating module 10 includes a cutting tip 11 for inducing high frequency or ultrasonic waves to a surgical site of the human body; Induction body 12 to which the cutting tip 11 is fixed; an operating block 13 coupled to the induction body 12; And it may consist of a fastening block 14 coupled to the operation block 13. The incision tip 11 may have a knife shape or a tongue shape capable of incising a body part while extending linearly as a whole. One end of the incision tip 11 may be fixed to one end of the induction body 12 or inside the other end. The induction body 12 may have a hollow cylinder shape or a tube shape as a whole, and may include an accommodation space in which various means for inducing high frequency waves or ultrasonic waves to the cutting tip 11 while fixing the cutting tip 11 are disposed. The induction body 12 may have various structures in which the diameter gradually changes at least in part along the extending direction, and an operating block 13 may be formed at one end of the induction body 12 . Various electronic circuits, parts or chips for operating the heating module 20 may be disposed inside the operating block 13 . The fastening block 14 may be coupled to the operating block 13, and the operating unit 15 for generating or transmitting high frequency or ultrasonic waves may be detachably coupled to the fastening block 14. The fastening block 14 may have a hollow cylinder shape as a whole, and the operation unit 15 may be coupled to one end thereof. The operating unit 15 may be connected to a control module in which various processors or generating means for generating ultrasonic or high-frequency waves are disposed by means of a connection cable 16 . At least one operating switch (18a, 18b) may be installed in the operating block 13, for example, various types of switches for operating a surgical tool such as a cutting switch (18a) or a coagulation switch (18b) are installed. It can be. An ultrasonic vibrator or transducer for generating ultrasonic waves may be installed separately from the heating module 10 and applied to the transmission member WM by an appropriate induction means. Alternatively, a transducer module TR including a vibrator for generating ultrasonic waves may be disposed inside the operation unit 15, for example. Ultrasonic waves transmitted from the outside or ultrasonic waves generated by the transducer module TR may be transmitted to the cutting tip 11 through the transmission member WM. The transmission member WM may be made of solid materials such as various metals capable of transmitting ultrasonic waves. When the conductive member WM is made of a conductive material, it may have a function of transmitting high frequencies. Alternatively, a cable for transmitting high frequency waves may be disposed separately from the transmission member WM. High frequency and ultrasonic waves may be transmitted to the cutting tip 11 in various ways, and the present invention is not limited thereby.

The scissors module 20 detachably coupled to the heating module 10 may be composed of two parts, and specifically, the scissors module 20 includes operating scissors rotatable with respect to the heating module while the contact tip 21 is formed; and a fixing hanger 27 fixed to the heating module. The operating scissors have a contact tip 21 that engages or separates from the cutting tip 11; a separation portion 22 extending from the contact tip 21; An extension part 24 extending along a predetermined direction while being integrally formed with the separation part 22; and an operating handle 25 coupled to the extension portion 24. At least a part of the upper surface of the contact tip 21 may have a structure capable of making surface contact with the lower surface of the cutting tip 11 . The separation portion 22 may be shaped like a bow from one end of the contact tip 21 as a whole, and the coupling portion 23 may be formed to be inclined upward from the end of the separation portion 22 . A coupling unit 26 for detachably coupling the operating scissors to the heating module 20 may be coupled to the coupling portion 23 . Specifically, the coupling unit 26 may be, for example, a cylindrical pin structure, and coupling holes may be formed on the side of the induction unit 12 . Also, the coupling unit 26 may be rotatably coupled to the coupling hole, whereby the operating scissors may be rotatably coupled to the heating module 20 . The extension part 24 may extend linearly from the end of the coupling part 23, and the operation handle 25 may be made of various structures that allow the operation scissors to be rotated with a finger. For example, the operating handle 25 may be circular as a whole, but is not limited thereto. A fixed coupling portion 17 may be formed on the fastening block 14 , and a fixed hook 27 may be coupled to the fixed coupling portion 17 . The fixing hanger 27 may have a variety of structures corresponding to the operation handle 25, and may be, for example, circular as a whole. The operating scissors or fixing hanger 27 can be detachably coupled to the heating module 20 in a variety of ways.

In a state in which the scissors module 20 is not coupled to the heating module 10, the ultrasonic generator does not operate, and only the electric cutting function can be activated. The ultrasonic applying unit may be operated only when the scissors module 20 is coupled. The scissors module 20 may function as a switch for the ultrasonic applying means. For example, the fixing hanger 27 may have a function of electrically connecting the transducer module TR with a power supply cable. The scissors module 20 may perform a switch function in various ways for the operation of the ultrasonic applying means and is not limited to the presented embodiment.

2 shows an embodiment of a separation structure of a surgical tool according to the present invention.

Referring to FIG. 2 , the scissors module 20 includes operating scissors rotatable with respect to the heating module while the contact tip 21 is formed; and a fixing hanger 27 fixed to the heating module. An end of the incision tip 11 may extend into the induction unit 12a. The tip of the induction unit 12a may have a larger diameter than the incision tip 11, whereby an inflow gap may be formed at the tip of the induction unit 12a. The inlet gap may function to introduce various types of harmful gases generated during surgery into the heating module 10 . Gas introduced through the inlet gap may be filtered by the filter unit F and discharged through the discharge hole H. Various means for introducing harmful gases into the heating module 20 may be disposed. The fixed coupling portion 17 is a fixed block 171 coupled to the outer circumferential surface of the operation block 13; and at least one coupling protrusion 172 formed on the fixing block 171 . The coupling protrusion 172 may have various shapes protruding from the fixing block 171, and may have, for example, a right triangle cross section, a cylinder structure, or a structure similar thereto, but is not limited thereto. A fixed coupling block 19 coupled to the fixed coupling portion 17 may be formed in the fixed hanger 27, and the fixed coupling block 19 may include a hanger block 191 formed integrally with the fixed hanger 27; and an insertion hole 192 formed in the hook block 191 and into which the coupling protrusion 172 is accommodated and fixed. The coupling protrusion 172 may be made of a rigid material, and the insertion hole 192 may be formed of an elastic material. The coupling protrusion 172 may be detachably coupled to the insertion hole 192 , whereby the fixing hook 17 may be detachably coupled to the heating module 10 . The fixing hanger 17 may be detachably coupled to the heating module 10 in various ways, such as a sliding groove and coupling protrusion structure or a structure similar thereto, and is not limited to the presented embodiment. As described above, the operating scissors may be coupled to the heating module 10 in a structure in which the coupling unit 26 having a rotating pin structure is coupled to the coupling hole 26a formed on the circumferential surface of the induction unit 12a. Alternatively, the operating shears may be coupled to the heating module 10 in a structure in which a rotating protrusion is formed on the circumferential surface of the induction unit 12a and a rotation hole is formed in the operating shears. In this way, the operating scissors may be detachably and rotatably coupled to the heating module 10 in various ways, and the present invention is not limited thereby. As described above, the ultrasonic applying unit may be activated when the scissors module 20 is operated. Therefore, when the scissors module 20 is connected, a connection connector CS that allows power supply to the transducer TR to be started may be formed on the fixing hanger 27 . Connection connector (CS) can be formed in various positions of the scissors module 20, whereby the present invention is not limited.

Figure 3 shows an embodiment of the cutting structure of the surgical tool according to the present invention.

Referring to FIG. 3 , the incision tip 11 includes induction electrodes 34 and 37 that guide the high-frequency or ultrasonic waves to the cutting region. The incision tip 11 may have a function of coagulating by applying heat to the surgical site. Coagulation of the surgical site by the incision tip 11 may be performed by generating heat in the surgical site by applying high frequency or ultrasonic waves. Ultrasound may have a frequency of, for example, 5,000 kHz to 20 MHz, but is not limited thereto. The incision tip 11 may be extended in a flat shape after the lower surface becomes a flat surface as a whole and becomes a convex lens-shaped curved surface upward. In addition, after extending convexly in both directions from the sharp end in a curved shape, it may be extended in a flat shape and connected to the induction body 12. The contact tip 21 may have a shape similar to that of the induction body 12 as a whole, but is not limited thereto and may have various shapes having a plane facing the flat cutting tip 11 . Contact electrodes 31 and 31a and contact blocks 32 and 32a may be formed on opposite planes of the cutting tip 11 and the contact tip 21, respectively. The contact electrodes 31 and 31a may have a flat protrusion shape or an inwardly concave groove shape. The contact blocks 32 and 32a may have a flat protrusion shape that comes into contact with the contact electrodes 31 and 31a, a receiving groove shape, or a convex protrusion shape accommodated in a concave groove. The contact electrodes 31 and 31a having such a structure can facilitate incision and coagulation of the surgical site. In addition, the structure of the corresponding contact blocks 32 and 32a enables rapid cutting while only necessary parts are cut. The contact electrode 31 may have a structure in which a portion of the contact electrode 31 protrudes downward from the insulating block 33, and the contact electrode 31 may be connected to the reaction electrode 35 by the conductive layer 34. The reaction electrode 35 may have a function of inducing ultrasonic waves or high frequencies transmitted through the waveguide 36 for transmitting ultrasonic waves or high frequencies to the conductive layer 34 . The conductive layer 34 may have high electrical conductivity or be made of a metallic material capable of transmitting ultrasonic waves. Also, the contact electrode 31 may have a relatively narrow cutter structure. In this structure, the contact electrode 31 transmits transmitted ultrasound or high frequency to the surgical site so that it can be heated and coagulated. High frequency or ultrasound waves can be guided to the surgical site in a variety of ways. For example, high frequency or ultrasonic waves transmitted through the waveguide 36 may be transmitted to the surgical site through the induction electrode 37 and the separation contact electrodes 38_1, 38_2, and 38_K. By means of the separate contact electrodes 38_1 to 38_K, it is possible to locally heat the surgical site while reducing the penetration depth of high frequency or ultrasonic waves. The contact electrodes 31 and 31a may be made of various structures using various materials and are not limited to the presented embodiments.

Figure 4 shows an embodiment of the operating structure of the surgical tool according to the present invention.

Referring to FIG. 4 , the high frequency generated by the high frequency generator 42 may be guided through the transmission cable 46 and transmitted to the cutting tip 11 . Alternatively, ultrasonic waves generated by the ultrasonic generator 47 may be transmitted to the cutting tip 11 by the ultrasonic transmitting member WM. The ultrasonic generator 47 may be located inside the heating module or outside the heating module, and the ultrasonic waves may be transmitted to the cutting tip 11 via the cutting member WM in various methods capable of transmitting ultrasonic waves. can The application of ultrasonic waves may be performed by means of an ultrasonic switch WS installed in the heating module or the ultrasonic transducer described above may be operated. As described above, the heating module may be used alone, or the scissors module 20 may be used in a combined form. When the heating module is used alone, for example, it may have a function similar to a bovie (electric cutting machine). The entire operation of the surgical tool may be controlled by the control module 41, and the coagulation switch 18b may be operated to coagulate the incision site. Upon receiving the operation signal of the coagulation switch 18b, the control module 41 may generate a high frequency by operating the high frequency generator 42. Alternatively, ultrasonic waves may be generated by operating the ultrasonic switch WS. The application time of the high frequency or ultrasonic wave may be determined by the time setting unit 43, and the intensity of the high frequency or ultrasonic wave applied by the power setting unit 44 may be determined. The generated microwaves may be transmitted to the cutting tip 11 by the operation of the operation unit 15 according to set conditions. High frequency or ultrasonic waves may be transmitted to the cutting tip 11 through a transmission cable or cutting member WM. A reflectance of the transmitted high frequency or ultrasonic wave may be detected by the reflection detection unit 45 and transmitted to the control module 41 . In addition, the temperature of a region to which high frequency or ultrasonic waves are applied may be detected and transmitted to the control module 41 . Based on the reflection information and the temperature detection information, the control module 41 may adjust operating conditions of high frequency or ultrasonic waves. When solidification is completed in this way, the cutting switch 18a may be operated, and application of high frequency or ultrasonic waves may be stopped according to the operation of the cutting switch 18a. According to the operation of the cutting switch 18a, low-frequency ultrasonic waves having a low frequency of, for example, 10 to 5,000 kHz may be selectively applied to the cutting site. The applied ultrasonic wave has a function of vibrating the cutting part, the cutting tip 11 or the contact tip 21, thereby making cutting easy.

In the presented embodiment, it has been described that incision, solidification, and cutting are performed by means of applying ultrasonic waves. Unlike this, the ultrasonic application means can be applied only in the cutting process. For example, when the heating module 10 is used alone, high frequency is applied so that the surgical site can be incised and coagulated. In contrast, when the scissors module is coupled to the heating module 10, incision and solidification may be performed by high frequency. Also, ultrasonic waves may be applied by the ultrasonic applying module during the cutting process. In this case, the ultrasonic application module may generate low-frequency ultrasonic waves. The high frequency applying means and the ultrasonic applying module may be applied in various ways, and the present invention is not limited thereto. In addition, high frequency or ultrasonic waves may be generated and applied in various ways and are not limited to the presented embodiments.

Although the present invention has been described in detail with reference to the presented embodiments above, those skilled in the art will be able to make various modifications and variations without departing from the technical spirit of the present invention with reference to the presented embodiments. . The present invention is not limited by these variations and modifications, but is limited only by the claims appended below.

10: heating module 20: scissors module
11: incision tip 12: guide body
13: operation block 14: fastening block
15: operating unit 16: connecting cable
21: contact tip 22: separation site
24: extension part 27: fixed length

Claims (3)

a heating module 10 having a cutting tip 11 to which high frequency or ultrasonic waves can be selectively applied; and
Electrical incision and ultrasonic cutting type surgical tool consisting of a scissor module 20 detachably coupled to the heating module 10. The surgical tool of claim 1, wherein high frequency is applied when the scissors module (20) is separated, and ultrasonic wave is applied when the scissors module (20) is coupled. The method according to claim 1, wherein the scissors module 20 is operating scissors rotatable with respect to the heating module while the contact tip 21 is formed; And a microwave type surgical tool consisting of a fixing hook 27 fixed to the heating module.

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