Endoscopic device

Abstract

Provided in one embodiment of the present invention is an endoscopic device comprising: a body part having a hollow; a slider having a grip part and a column part, which extends from the grip part to the inside of the body part, and being capable of moving with respect to the body part; a high-frequency connection part extending from the body part and having a plug disposed therein; a coil tube coupled to the body part; a cautery electrode coupled to one end of the coil tube; an injection tube coupled to the slider and disposed inside the coil tube; and a needle which is coupled to one end of the injection tube, and which is disposed inside the coil tube or protrudes to the outside of the coil tube through a through-hole of the cautery electrode, wherein the high-frequency current supplied from the plug flows to the cautery electrode through the coil tube.

Description

Endoscopic devices

[0001] The present invention relates to an endoscopic device, and more particularly, to an endoscopic device capable of hemostasis and solution injection through high-frequency cauterization.

[0002] As industrial development and the standard of living of the people have improved, interest in health has gradually increased, and interest in national health has also increased at the national level. This interest has led to development in the medical field and the medical device field.

[0003] In particular, after the endoscope was first developed by Kussmaul in 1868, von Mikulicz developed a rigid endoscope and applied it clinically in 1881, and Schindler developed a flexible endoscope and applied it clinically in 1932. After that, in 1960, with the development of optical fiber, Hirschowitz developed a flexible optical endoscope that could directly examine internal organs and tissues of the body even when the endoscope was bent, and in the 1980s, the video endoscope used today was developed. These endoscopes made histological diagnosis of internal organs and tissues of the body possible.

[0004] Meanwhile, when performing a medical procedure using the above endoscope, the types of medical devices inserted into the working channel provided in the endoscope are diverse, and among them, an example of a conventional injector treatment device is disclosed in Korean Patent Publication No. 10-1260228.

[0005] According to a conventional injector treatment device, a hemostatic means (130) may be additionally provided, and the hemostatic means (130) is inserted into the treatment body (110) and the treatment tube (120) and includes a power connector (wire, 133) that connects the power terminal (131) and the core regulator (132) to each other. Therefore, when the power connector (133) is damaged, performance deteriorates due to the generation of current resistance, and there is a problem that the treatment tube (120) may be damaged when the needle part moves forward / backward due to interference between the power connector (133) and the needle part (200).

[0006] The purpose of the present invention is to provide an endoscopic device capable of hemostasis and solution injection through high-frequency cauterization.

[0007] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0008] In order to solve the above problem, one embodiment of the present invention provides an endoscopic device including a body part having a hollow portion; a grip part; and a slider having a column part extending from the grip part into the interior of the body part and movable with respect to the body part; a high-frequency connection part extending from the body part and having a plug disposed therein; a coil tube coupled to the body part; a cauterizing electrode coupled to one end of the coil tube; an injection tube coupled to the slider and disposed inside the coil tube; and a needle coupled to one end of the injection tube and disposed inside the coil tube or protruding to the outside of the coil tube through a through hole of the cauterizing electrode; wherein a high-frequency current supplied from the plug flows to the cauterizing electrode through the coil tube.

[0009] According to an embodiment, the coil tube may further include an insulating tube surrounding the coil tube.

[0010] According to an embodiment, the plug and the coil tube may be connected by a first wire.

[0011] According to an embodiment, the coil tube is fixed to the body portion through a metal fixing member, and the plug and the fixing member can be connected by a first wire.

[0012] According to an embodiment, the body part may further include a mounting part that protrudes forward and to which the fixing member is fixed, and an insulating member that surrounds the mounting part and the fixing member.

[0013] According to an embodiment, a groove may be formed on the outer surface of the mounting portion for passing the first wire.

[0014] According to an embodiment, the body portion is formed with a front hook hole and a rear hook hole, and the slider may include a hook that is hooked to either the front hook hole or the rear hook hole.

[0015] According to an embodiment, when the hook is caught in the rear catch hole, the needle may be positioned inside the coil tube, and when the hook is caught in the front catch hole, the needle may protrude outside the coil tube.

[0016] According to an embodiment, the hook may include a sloped surface that slopes forward as it becomes radially inward, and a convex surface that protrudes convexly toward the rear from a portion of the sloped surface.

[0017] According to an embodiment, the rear hanging hole may be provided with a hanging step that engages with the inclined surface at a position facing the inclined surface.

[0018] According to an embodiment, the outer side of the coil tube may be provided with a second wire having one end connected to the fixing member and the other end extending toward the working electrode.

[0019] According to an embodiment, the outer side of the coil tube may be provided with a second wire having one end connected to the working electrode and the other end extending toward the fixing member.

[0020] According to an embodiment, the coil tube further includes an insulating tube surrounding the coil tube, and the second wire can be placed between the coil tube and the insulating tube.

[0021] According to the endoscopic device of the present invention, hemostasis or marking is possible through high-frequency cauterization using a cauterizing electrode, and a solution can be injected into a lesion site through a needle selectively protruding from a coil tube.

[0022] Furthermore, since the high-frequency current supplied from the plug flows to the atomizing electrode through the coil tube itself, a long wire is not required to electrically connect the plug and the atomizing electrode. In other words, only the injection tube and needle can be placed inside the coil tube, without any wires. This prevents performance degradation or short circuits due to wire bending or damage, and prevents interference between the wire and the injection tube for solution injection, preventing the needle from protruding due to slider operation even when the coil tube is excessively bent.

[0023] In addition, the hook provided on the pillar of the slider can be caught in either the front or rear catch hole, thereby maintaining the needle in a position protruding outward from the coil tube or a position disposed within the coil tube, respectively. In particular, the convex surface of the hook is caught in the front catch hole, so that the position of the slider with respect to the body is maintained, and when a certain force is applied to pull the slider backward, the hook can be easily detached from the front catch hole. The catch protrusion provided in the rear catch hole can be engaged with the inclined surface of the hook, thereby preventing the slider from being completely detached from the body, and the maximum backward position of the slider with respect to the body can be determined.

[0024] In addition, when a second wire is provided on the outside of the coil tube, the resistance value of the coil tube is lowered due to the second wire, and ultimately the inherent resistance value of the device is lowered, so that high-frequency current can flow more smoothly through the coil tube and be supplied to the working electrode.

[0025] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0026] Figure 1 is a front view of an endoscopic device according to an embodiment of the present invention;

[0027] Figure 2 is a cross-sectional view of Figure 1;

[0028] Figure 3 is an enlarged view of part A of Figure 2.

[0029] Figure 4 is an enlarged view of part B of Figure 3.

[0030] Fig. 5 is a partial perspective view showing the slider and injection tube separated from Fig. 1.

[0031] Figure 6 is an enlarged view of part C of Figure 5.

[0032] Fig. 7 is a partial perspective view of Fig. 1, omitting the insulating member, reinforcing tube, and insulating tube.

[0033] Fig. 8 is a cross-sectional view of a portion of the body side of Fig. 1;

[0034] Fig. 9 is a partial perspective view showing a state in which the slider in Fig. 1 has moved rearward and the hook is caught in the rear hook hole.

[0035] FIG. 10 is a partial front view showing some components of an endoscopic device according to another embodiment of the present invention;

[0036] Fig. 11 is a cross-sectional view of a portion of the endoscopic device of Fig. 10.

[0037] Hereinafter, a preferred embodiment of the endoscopic device of the present invention will be described with reference to the attached drawings.

[0038] In addition, the terms described below are terms defined in consideration of the functions in the present invention, and may vary depending on the intention or custom of the user or operator. The examples below do not limit the scope of the present invention, but are merely exemplary matters of the components presented in the claims of the present invention.

[0039] To clearly explain the present invention, irrelevant parts have been omitted, and the same reference numerals are used throughout the specification to refer to identical or similar components. Throughout the specification, when a part is said to "include" a certain component, unless specifically stated otherwise, this does not mean that other components may be included, but rather that other components may be included.

[0040]

[0041] Let us examine an endoscopic device (1) according to an embodiment of the present invention with reference to FIGS. 1 to 9. An endoscopic device (1) according to an embodiment of the present invention includes a body (100), a high-frequency connection (110), a slider (200), a coil tube (300), a cauterizing electrode (400), an insulating tube (500), an injection tube (600), and a needle (700).

[0042] The body (100) has a hollow portion, and a high-frequency connection portion (110) extends from the body (100). The body (100) and the high-frequency connection portion (110) may be formed as an integral part. The high-frequency connection portion (110) may be formed in a hollow cylindrical shape, and a plug (120) is arranged inside the high-frequency connection portion (110). A high-frequency generator is electrically connected to the plug (120), so that a high-frequency current generated by the high-frequency generator can be supplied to a small electrode (400) to be described later through the plug (120). Since the high-frequency generator is generally and widely used in the technical field of the present invention, detailed drawings or descriptions of the high-frequency generator will be omitted.

[0043] The slider (200) is movable relative to the body (100), and specifically, as illustrated in FIGS. 2 and 5, includes a grip portion (210) disposed outside the body (100) to grip and manipulate the slider when it moves forward and backward, and a pillar portion (220) extending from the grip portion (210) to the inside of the body (100). Since the pillar portion (220) is movable in the longitudinal direction within the body (100), the slider (200) is movable in the longitudinal direction relative to the body (100).

[0044] A coil tube (300) is attached to the front of the body part (100). In the present embodiment, as illustrated in FIG. 7, the coil tube (300) is fixed to the body part (100) via a metal fixing member (310). To this end, the body part (100) may include a mounting member (130) that protrudes forward and to which the fixing member (310) is fixed, and a ring-shaped fixing member (310) surrounding the coil tube (300) may be fixed to the facing mounting member (130).

[0045] A cauterizing electrode (400) is connected to one end of the coil tube (300). The cauterizing electrode (400) receives high-frequency current supplied from the plug (120) and serves to mark or stop bleeding at the lesion site through high-frequency cauterization.

[0046] At this time, the high-frequency current supplied from the plug (120) flows to the working electrode (400) through the coil tube (300). For this purpose, the plug (120) and the metal fixing member (310) can be electrically connected by the first wire (800). That is, one end of the first wire (800) is connected to the plug (120), and the other end of the first wire (800) is connected to the fixing member (310) through the body part (100). Accordingly, the high-frequency current supplied from the plug (120) can flow forward through the first wire (800), the fixing member (310), and the coil tube (300) and ultimately be transmitted to the working electrode (400).

[0047] A groove (132) may be formed on the outer surface of the mounting portion (130) for the first wire (800) to pass through. However, this is not limited thereto, and the first wire (800) may also pass through the mounting portion (130).

[0048] In order to insulate the first wire (800) through which high-frequency current flows and the fixing member (310), an insulating member (900) may be further provided to surround the mounting portion (130) and the fixing member (310) as illustrated in FIGS. 1 to 3. For example, the insulating member (900) may be formed by injection molding ABS resin and may be in the form of a cap or a tube. In the present embodiment, screw threads are formed on the outer surface of the mounting portion (130), so that the insulating member (900) can be coupled to the mounting portion (130) through screw coupling. Even if the insulating member (900) is coupled to the mounting portion (130), the first wire (800) is not interfered with or damaged because it is arranged within the groove (132).

[0049] However, depending on the embodiment, the coil tube (300) may be directly fixed to the body part (100) using an adhesive or the like. In this case, the plug (120) and the coil tube (300) may be electrically connected by the first wire (800).

[0050] In this way, since the high-frequency current supplied from the plug (120) flows to the atomizing electrode (400) through the coil tube (300) itself, a long wire for electrically connecting the plug (120) and the atomizing electrode (400) is not required. That is, no wire is placed inside the coil tube (300), and only the injection tube (600) and needle (700), which will be described later, can be placed. As a result, performance degradation due to bending or damage to the wire does not occur, and damage to the tube due to interference between the wire and the needle does not occur.

[0051] In addition, since high-frequency current flows through the coil tube (300), an insulating tube (500) may be further included to wrap the coil tube (300) for insulation. As shown in FIGS. 3 and 4, the insulating tube (500) is configured to wrap the entire coil tube (300) extending forward of the insulating member (900). The insulating tube (500) does not wrap the cauterizing electrode (400) or wraps only a portion of the cauterizing electrode (400) (e.g., a portion for coupling with the coil tube (300)).

[0052] According to an embodiment, a reinforcing tube (910) extending forward of the insulating member (900) and surrounding the insulating tube (500) may be further provided.

[0053] An injection tube (600) is coupled to the slider (200). Specifically, the slider (200) includes an injection tube (230) to which a syringe or the like for injecting a solution is connected, and the injection tube (230) can extend to the inside of the grip section (210) or the inside of the column section (220). The injection tube (600) is connected to the injection tube (230) so as to be communicable with the injection tube, so that the solution introduced through the injection tube (230) can flow into the injection tube (600). The injection tube (600) extends through the body section (100) to the inside of the coil tube (300).

[0054] A needle (700) is coupled to one end of the injection tube (600), and the solution flowing forward through the injection tube (600) is discharged through the interior of the needle (700). In the present embodiment, the needle (700) is coupled to one end of the injection tube (600) through a coupling (710), but is not limited thereto and may be coupled directly. Since the needle (700) has a sharp end, the solution can be injected after inserting the needle into the lesion site, or the solution can be injected while the needle is positioned around the lesion site. If the coupling (710) is in contact with the ablation electrode (400), a high-frequency current can flow from the ablation electrode (400) through the coupling (710) to the needle (700), and in this case, the needle (700) can perform an ablation function while protruding.

[0055] Since the needle (700) is connected to the slider (200) through the injection tube (600), when the slider (200) is moved forward and backward with respect to the body (100), the needle (700) also moves forward and backward. Through this, the needle (700) can be placed inside the coil tube (300) or protrude outside the coil tube (300) through the through hole (402) of the ablation electrode (400). That is, when marking or hemostasis of the lesion site is required, the slider (200) is moved backward with respect to the body (100) so that the needle (700) is placed inside the coil tube (300). On the other hand, when solution injection is required, the slider (200) is moved forward relative to the body (100) so that the needle (700) passes through the through hole (402) of the electrode (400) and protrudes forward.

[0056] At this time, the hook (240) of the slider (200) has a structure in which it is caught in either the front hook hole (140) or the rear hook hole (150) of the body part (100) so that the needle (700) can be maintained in a position protruding outside the coil tube (300) or a position disposed inside the coil tube (300).

[0057] Specifically, the body part (100) has a front hook hole (140) and a rear hook hole (150) formed in a row as shown in FIGS. 1 and 8. As seen in FIG. 1, the front hook hole (140) and the rear hook hole (150) are formed in a square shape. The slider (200) includes a hook (240) as shown in FIG. 5. In the present embodiment, the hook (240) is shown as being provided on a rod part extending separately from the pillar part (220), but is not limited thereto, and the hook (240) may also be provided on the pillar part (220). When the hook (240) is caught in the front hook hole (140), the needle (700) is protruding to the outside of the coil tube (300) (see FIG. 1), and when the hook (240) is caught in the rear hook hole (150), the needle (700) is placed inside the coil tube (300).

[0058] Referring to FIG. 6, preferably, the hook (240) may include an inclined surface (242) that slopes forward as it goes radially inward, and a convex surface (244) that protrudes convexly toward the rear from a portion of the inclined surface (242). In the present embodiment, the convex surface (244) protrudes from the central portion of the inclined surface (242). In addition, as illustrated in FIGS. 8 and 9, a rear hooking hole (150) may be provided with a hooking protrusion (152) that engages with the inclined surface (242) at a position facing the inclined surface (242). In the present embodiment, the hooking protrusions (152) are formed as a pair, and the convex surfaces (244) are respectively provided at positions facing only the inclined surfaces (242) on both sides of the convex surface so as not to be caught.

[0059] Accordingly, the convex surface (244) of the hook is caught in the front hook hole (140) (see FIG. 8), and the inclined surface (242) of the hook is caught in the rear hook hole (150) (see FIG. 9). Specifically, since the convex surface (244) of the hook is caught in the front hook hole (140), the position of the slider (200) with respect to the body part (100) is maintained. Here, the grip portion (210) of the slider is in contact with the body part (100) and does not move forward any further. However, when a certain force is applied to pull the slider (200) backward, the hook can be easily detached from the front hook hole (140) due to the convex surface (244) of the hook. In addition, since the catch (152) provided in the rear catch hole engages with the inclined surface (242) of the hook, even if a force is applied to pull the slider (200) backward, the slider (200) does not move backward any further. Accordingly, the slider (200) does not completely detach from the body (100), and the maximum backward position of the slider (200) with respect to the body (100) can be determined.

[0060]

[0061] Next, an endoscopic device according to another embodiment of the present invention will be described with reference to FIGS. 10 and 11. The endoscopic device illustrated in FIGS. 10 and 11 includes all of the same components as the endoscopic devices illustrated in FIGS. 1 to 9, but additionally includes a second wire (1000). Hereinafter, descriptions of identical components having the same drawing reference numerals will be omitted, and the second wire (1000) will be primarily described.

[0062] The second wire (1000) is placed on the outside of the coil tube (300). Specifically, the second wire (1000) is placed between the coil tube (300) and the insulating tube (500) as shown in FIG. 11.

[0063] The second wire (1000) is fixed at one end and free at the other end. In the present embodiment, one end of the second wire (1000) is fixed by being connected to the fixing member (310), and the other end extends toward the ablation electrode (400) but is not connected to anything else. Accordingly, bending of the coil tube (300) is possible when using the endoscopic device. If both ends of the second wire (1000) were respectively connected to the fixing member (310) and the ablation electrode (400), the coil tube (300) would not be properly bent by the second wire (1000).

[0064] More specifically, the second wire (1000) can be extended to the extent that it comes into contact with the ablation electrode (400) when the coil tube (300) is straight and not bent. Accordingly, when the coil tube (300) is straight, high-frequency current can be directly supplied to the ablation electrode (400) not only through the coil tube (300) but also through the second wire (1000). In general, since the coil tube (300) has a greater change in length than the second wire (1000), when the coil tube (300) is bent, the second wire (1000) may not come into contact with the ablation electrode (400) but may be spaced apart. In this case, the high-frequency current is not directly supplied to the ablation electrode (400) through the second wire (1000), but can be smoothly supplied to the ablation electrode (400) through the coil tube (300) with lowered resistance.

[0065] However, it is not limited to this, and in some cases, one end of the second wire (1000) may be connected to and fixed to the working electrode (400), and the other end may extend toward the fixing member (310).

[0066] As the second wire (1000) is provided in this way, the resistance value of the coil tube (300) is lowered due to the second wire (1000), and ultimately, the inherent resistance value of the device is lowered (for example, it can be lowered from 115Ω to 50Ω), so that the high-frequency current can flow more smoothly through the coil tube (300) and be supplied to the working electrode (400).

[0067] The present invention is not limited to the specific embodiments and descriptions described above, and anyone with ordinary skill in the art to which the present invention pertains can make various modifications without departing from the gist of the present invention as claimed in the claims, and such modifications are within the protection scope of the present invention.

[0068] The present invention relates to an endoscopic device, and more particularly, to an endoscopic device capable of hemostasis and solution injection through high-frequency cauterization.

Claims

1. A body having a hollow body; A slider having a grip portion and a column portion extending from the grip portion to the inside of the body portion, the slider being movable with respect to the body portion; A high-frequency connecting portion extending from the above body portion and having a plug positioned inside; A coil tube coupled to the above body part; A working electrode connected to one end of the above coil tube; An injection tube coupled to the above slider and placed inside the above coil tube; and A needle is connected to one end of the injection tube and is disposed inside the coil tube or protrudes outside the coil tube through a through hole of the working electrode; An endoscopic device, characterized in that the high-frequency current supplied from the plug flows to the working electrode through the coil tube.

2. In paragraph 1, An endoscopic device further comprising an insulating tube surrounding the coil tube.

3. In paragraph 1, An endoscopic device, characterized in that the plug and the coil tube are connected by a first wire.

4. In paragraph 1, An endoscopic device, characterized in that the coil tube is fixed to the body through a metal fixing member, and the plug and the fixing member are connected by a first wire.

5. In paragraph 4, The above body part includes a mounting part that protrudes forward and to which the fixing member is fixed, An endoscopic device, characterized in that it further includes an insulating member surrounding the mounting portion and the fixing member.

6. In paragraph 5, An endoscopic device characterized in that a groove is formed on the outer surface of the mounting portion for passing the first wire through.

7. In paragraph 1, An endoscopic device, characterized in that a front hook hole and a rear hook hole are formed in the body portion, and the slider includes a hook that is hooked to one of the front hook hole and the rear hook hole.

8. In paragraph 7, An endoscopic device characterized in that when the hook is caught in the rear hook hole, the needle is positioned inside the coil tube, and when the hook is caught in the front hook hole, the needle protrudes outside the coil tube.

9. In paragraph 8, An endoscopic device, characterized in that the hook includes an inclined surface that slopes forward as it goes radially inward, and a convex surface that protrudes convexly toward the rear from a portion of the inclined surface.

10. In paragraph 9, An endoscopic device characterized in that the rear hanging hole is provided with a hanging protrusion that engages with the inclined surface at a position facing the inclined surface.

11. In paragraph 4, An endoscopic device characterized in that a second wire is provided on the outside of the coil tube, one end of which is connected to the fixing member and the other end of which extends toward the working electrode.

12. In paragraph 4, An endoscopic device characterized in that a second wire is provided on the outside of the coil tube, one end of which is connected to the ablation electrode and the other end of which extends toward the fixing member.

13. In paragraph 11 or 12, It further includes an insulating tube that wraps the above coil tube; An endoscopic device, characterized in that the second wire is placed between the coil tube and the insulating tube.

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