KR102624729B1 - Tissue removal apparatus - Google Patents

Abstract

The tissue removal device includes an insertion member inserted into the body, a first treatment member positioned inside the insertion member, a second treatment member positioned inside the insertion member, a third treatment member positioned inside the insertion member, A body member coupled to the insertion member and installed to allow the first to third treatment members to penetrate, rotatably coupled to the body member and movable along the longitudinal direction of the body member, An operating unit that receives one end of the first to third treatment members and selectively advances or retracts each of the first to third treatment members, and is coupled to a portion of the body member where the operating unit is located. It includes a first handle member.

Description

Tissue removal device {TISSUE REMOVAL APPARATUS}

The present invention relates to a tissue removal device that can be used in procedures to remove part of tissue inside the body.

Due to the development of endoscopic devices and therapeutic endoscopy, if tumors occurring in the esophagus, stomach, and colon among the human digestive organs are detected early, they can be completely cured through endoscopic tumor resection.

If lesions such as polyps, adenomas, or early cancer without lymph node metastasis are discovered through endoscopy, endoscopic tumor resection is performed. Endoscopic tumor resection includes endoscopic polypectomy used for relatively small polyps, endoscopic mucosal resection used for relatively large or flat polyps, and endoscopic submucosal dissection resection used for large and flat polyps.

In endoscopic submucosal dissection resection, the lesion is identified using an endoscope, then the surrounding area of the lesion is energized and marked using an incision chart, and saline solution mixed with a hemostatic agent and dye is injected into the submucosal layer to cause the mucosa to swell. Afterwards, the marginal area of the early cancer is incised and the submucosa is incised to remove the early cancer.

Since endoscopic submucosal dissection resection uses a method of removing the cancer cell area en masse, it can reduce the possibility of uncertain resection where cancer cells may remain. However, endoscopic submucosal dissection resection has the disadvantage of taking longer than other endoscopic polyp resection methods. Therefore, in order to shorten the procedure time, submucosal dissection resection and mucosal resection are sometimes used together. When submucosal dissection resection and mucosal resection are used together, an incision and a snare are used as surgical instruments, respectively.

Conventional tissue removal devices that can be used interchangeably with submucosal dissection resection and mucosal resection have an incision at the end of the snare, so there is a risk of perforation of unintended areas due to the incision during the snare resection procedure. Accordingly, the need for a tissue resection device that can safely and quickly perform endoscopic submucosal dissection resection has emerged.

The purpose of the present invention is to provide a tissue removal device that can be used quickly in combination with submucosal dissection resection, mucosal resection, and various procedures.

A tissue removal device according to the spirit of the present invention includes an insertion member inserted into the body; a first treatment member positioned inside the insertion member; a second treatment member positioned inside the insertion member; a third treatment member positioned inside the insertion member; a body member coupled to the insertion member and installed to allow the first to third treatment members to pass through; Rotatably coupled to the body member, coupled to be movable along the longitudinal direction of the body member, receiving one end of the first treatment member to the third treatment member, and the first treatment member to the third treatment member. an operating unit that selectively advances or retracts each; and a first handle member coupled to a portion of the body member where the manipulation unit is located.

Meanwhile, a first locking portion is formed at an end of the portion of the first treatment member accommodated in the operating unit, and a second locking portion is formed at an end of the portion of the second treatment member accommodated in the operating unit. 3 A third engaging portion is formed at an end of the portion of the treatment member accommodated in the operating unit, and when the operating unit is positioned adjacent to the first handle member, the operating unit is connected to the first engaging portion to the third engaging portion. When all of the locking portions are retracted and the operating unit is moved in a direction away from the first handle member by an external force while positioned adjacent to the first handle member, the operating unit is moved from the first locking portion to the Any selected one of the third locking parts may be advanced so that one selected among the first to third treatment members may be exposed to the outside from the insertion member.

Meanwhile, the body member includes an internal space accommodating the first to third locking parts, and the manipulation unit is positioned to surround a portion of the outside of the body member, and rotates and rotates with respect to the body member. a moving member that is moved; a push member located in the inner space of the body member and rotating and moving in conjunction with the moving member to selectively push the first to third locking portions; and a connecting member that connects the moving member and the push member and is positioned to penetrate the body member.

Meanwhile, the manipulation unit may further include one or more second handle members that are coupled to the moving member and allow a part of the user's body to be inserted.

Meanwhile, the moving member includes a first rotating part to which the second handle member is coupled; and a second rotating part coupled to rotate with the first rotating part.

Meanwhile, the push member includes a base portion; The vertical cross-section is shaped like a rail to prevent the first to third locking parts from being separated from the base portion, and in the process of rotating the base part in conjunction with the moving member, the first to third locking parts are prevented from being separated from the base portion. It is made to penetrate along the movement trajectory of the first to the third locking parts to prevent interference with the third locking part, and any one selected from the first to the third locking parts is inserted into the insertion member. A rail portion that advances to the side; and is formed to be retracted from a portion of the rail portion toward the first handle member, so that even if the base portion moves in a direction away from the first handle member, the rail portion among the first to third locking portions It may include a receiving portion that maintains the remaining ones that have not been advanced in a state retreated toward the first handle member.

Meanwhile, the body member includes a plurality of first guide parts that guide the movement path of the connection member so that the manipulation unit can move along the longitudinal direction of the body member; and a second guide unit that connects the plurality of first guide units and guides a movement path of the connection member so that the manipulation unit can rotate based on the axial direction of the body member.

Meanwhile, it may further include a power supply member that is installed to penetrate the body member and supplies power to one or more of the first treatment member to the third treatment member.

Meanwhile, it may further include a movement limiting member installed outside the body member to limit the movement range of the manipulation unit.

Meanwhile, it may further include a power supply member installed inside the movement limiting member and supplying power to one or more of the first treatment member to the third treatment member.

Meanwhile, the first handle member may be rotatably coupled to the body member.

Meanwhile, a portion of the first treatment member that protrudes from the insertion member may be formed as a cutting blade.

Meanwhile, a portion of the second treatment member that protrudes from the insertion member may be formed as a snare with a closed curve shape.

Meanwhile, a portion of the third treatment member that protrudes from the insertion member may be formed as a nozzle for injecting a chemical solution into tissues inside the body.

Meanwhile, it may further include a chemical solution supply member that is installed to penetrate the body member and communicates with the third treatment member to supply a chemical solution to the third treatment member.

Since the tissue removal device according to an embodiment of the present invention can selectively use a plurality of treatment members, the tissue removal procedure time can be shortened compared to the case where the plurality of treatment members are each separately provided.

In the tissue removal device according to an embodiment of the present invention, each treatment member is operated independently, thereby preventing unexpected accidents during the procedure and allowing the user to use the treatment member safely.

1 is a plan view of a tissue removal device according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of the tissue removal device of Figure 1;
Figure 3 is a perspective view showing an excerpt of an operating unit.
Figure 4 is a cross-sectional perspective view of the operating unit of Figure 3;
Figure 5 is a perspective view illustrating a portion of the body member where the operating unit is moved and a portion adjacent thereto.
6 to 10 are diagrams showing the operation process of the tissue removal device.
Figure 6 is a diagram showing a state in which the first treatment member is advanced in the tissue removal device.
Figure 7 is a cross-sectional view of the tissue removal device of Figure 6;
Figure 8 is a diagram showing a state in which the second treatment member is advanced in the tissue removal device.
Figure 9 is a cross-sectional view of the tissue removal device of Figure 8;
Figure 10 is a diagram showing a state in which the third treatment member is advanced in the tissue removal device.
Figure 11 is a diagram showing a modified example of the operating unit.

The embodiments described in this specification and the configurations shown in the drawings are only preferred examples of the disclosed invention, and at the time of filing this application, there may be various modifications that can replace the embodiments and drawings in this specification.

The same reference numbers or symbols shown in each drawing of this specification indicate parts or components that perform substantially the same function. The shapes and sizes of elements in the drawings may be exaggerated for clarity.

Terms used herein are used to describe embodiments and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. The existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not excluded in advance.

Terms containing ordinal numbers, such as "first", "second", etc., used in this specification may be used to describe various components, but the components are not limited by the terms, and the terms are one It is used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention.

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

FIG. 1 is a plan view of a tissue removal device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the tissue removal device of FIG. 1, FIG. 3 is a perspective view showing an excerpt of an operation unit, and FIG. 4 is a view of the tissue removal device of FIG. 3. It is a cross-sectional perspective view of the operating unit, and Figure 5 is a perspective view showing an excerpt of a portion adjacent to the portion where the operating unit moves in the body member.

1 to 5, the tissue removal device 100 according to an embodiment of the present invention includes an insertion member 110, a first treatment member 121, a second treatment member 122, and a third treatment member. 123, a body member 130, an operating unit 150, and a first handle member 140.

The insertion member 110 is inserted into the body. The insertion member 110 for this may be a tube made of a soft material, but is not limited thereto. The free end of the insertion member 110 may be sized and shaped to allow the first treatment member 121, the second treatment member 122, and the third treatment member 123, which will be described later, to enter and exit.

The first treatment member 121 is located inside the insertion member 110. The first treatment member 121 may be installed to advance and retreat within the body member 130, which will be described later. Here, the direction in which the first treatment member 121 advances is the direction in which it moves to be exposed to the outside from the insertion member 110, and the direction in which the first treatment member 121 retreats moves toward the manipulation unit 150, which will be described later. This is the direction.

A portion of the first treatment member 121 that protrudes from the insertion member 110 may be formed of a cutting blade 121b. The cutting blade 121b can be used in submucosal dissection resection. The cutting blade 121b receives high-frequency power and can mark the area around the lesion tissue or cut the mucosa or submucosa.

The second treatment member 122 is located inside the insertion member 110. The second treatment member 122 may be installed to advance and retract within the body member 130, which will be described later. A portion of the second treatment member 122 that protrudes from the insertion member 110 may be formed as a snare 122b having a closed curve shape.

Snare 122b can be used in mucosal resection. The snare 122b receives high-frequency power, captures the protruding lesion tissue exposed to the outside from the insertion member 110, and then is re-introduced into the insertion member 110 to remove the lesion tissue.

The third treatment member 123 is located inside the insertion member 110. The third treatment member 123 may be installed to advance and retreat within the body member 130, which will be described later. A portion of the third treatment member 123 that protrudes from the insertion member 110 may be formed as a nozzle 123b for injecting a medical solution into tissues inside the body.

Each of the first to third treatment members 121 to 123 as described above may be positioned to be spaced apart from each other by a certain distance. Accordingly, it is possible to prevent the first treatment member 121 to the third treatment member 123 from interfering with each other during the process of advancing and retreating.

Meanwhile, although not shown in the drawings, the first treatment member 121 to the third treatment member 123 of the tissue removal device 100 according to an embodiment of the present invention includes a snare 122b, a cutting blade 121b, and In addition to the nozzle 123b, it may be possible to apply various instruments necessary for the procedure.

The tissue removal device 100 according to an embodiment of the present invention includes a first treatment member 121, a second treatment member 122, and a third treatment member 123, allowing the user to perform multiple tumor resections simultaneously. You can do it.

The body member 130 is coupled to the insertion member 110 and installed so that the first to third treatment members 121 to 123 penetrate therethrough. The shape of the body member 130 may be, for example, cylindrical, but is not limited thereto. The insertion member 110 described above may be coupled to the front end of the body member 130, and the first handle member 140 to be described later may be coupled to the rear end of the body member 130.

Meanwhile, when the user does not use the tissue removal device 100 according to an embodiment of the present invention, a portion of the first treatment member 121 remains accommodated in the insertion member 110, and the remaining portion remains in the body. It can be maintained in a state accommodated in the member 130. The second treatment member 122 and the third treatment member 123 may also be positioned in the same manner as the first treatment member 121.

The manipulation unit 150 is rotatably coupled to the body member 130 and movable along the longitudinal direction of the body member 130. And, the manipulation unit 150 receives one end of the first treatment member 121 to the third treatment member 123, and selectively uses each of the first treatment member 121 to the third treatment member 123. Move forward or retreat.

The user manipulates the manipulation unit 150 to expose any one of the first to third treatment members 121 to 123 to the outside of the insertion member 110, and selects the necessary treatment member to perform the procedure. can be used for A detailed description of the manipulation unit 150 for this will be described later.

The first handle member 140 is coupled to a portion of the body member 130 where the manipulation unit 150 is located. A user may use the tissue removal device 100 by manipulating the manipulation unit 150 with respect to the first handle member 140 . For example, the user may use the tissue removal device 100 by inserting the thumb into the first handle member 140 and holding the manipulation unit 150 with the index and middle fingers, but the present invention is not limited thereto.

Meanwhile, the first handle member 140 may be rotatably coupled to the body member 130. The user may hold the manipulation unit 150 and the first handle member 140 using his or her fingers, and the first handle member 140 may also naturally rotate while the manipulation unit 150 rotates. Accordingly, the user can conveniently use the tissue removal device 100 according to an embodiment of the present invention.

As described above, the tissue removal device 100 according to an embodiment of the present invention allows the user to select an instrument to be used for the procedure by manipulating the manipulation unit 150. That is, since the tissue removal device 100 according to an embodiment of the present invention can selectively use a plurality of treatment members in one device, the tissue removal procedure time is reduced compared to the case where the plurality of treatment members are provided separately. It can be shortened.

To this end, if the tissue removal device 100 according to an embodiment of the present invention is described in more detail, the end of the portion of the first treatment member 121 accommodated in the manipulation unit 150 has a first locking portion ( 121a) may be formed, and a second locking portion 122a may be formed at an end of the portion of the second treatment member 122 accommodated in the manipulation unit 150. Additionally, a third locking portion (not shown) may be formed at an end of the third treatment member 123 that is accommodated in the manipulation unit 150.

When the manipulation unit 150 is positioned adjacent to the first handle member 140, the manipulation unit 150 may retract all of the first to third locking parts 121a. At this time, one end of all of the first to third treatment members 121 to 123 is accommodated in the insertion member 110 and is not exposed to the outside.

On the contrary, when the manipulation unit 150 is moved in a direction away from the first handle member 140 by an external force while positioned adjacent to the first handle member 140, the manipulation unit 150 advances any one selected from the first engaging portion 121a to the third engaging portion so that any selected one of the first treatment member 121 to third treatment member 123 is separated from the insertion member 110. Make it exposed to the outside. The user can use the externally exposed treatment member for the procedure.

Meanwhile, although not shown in the drawing, a certain amount of frictional force can be maintained between the body member 130 and the above-described first treatment member 121, second treatment member 122, and third treatment member 123. . Accordingly, in the process of selectively advancing and retracting the first treatment member 121, the second treatment member 122, and the third treatment member 123 by the manipulation unit 150, the first treatment member 121 , the second treatment member 122 and the third treatment member 123 are not moved by gravity or inertia, but can be accurately moved only by manipulation of the manipulation unit 150.

Hereinafter, the manipulation unit 150 that allows a selected one of the first to third treatment members 121 to 123 to be exposed to the outside as described above will be described in detail. Meanwhile, the body member 130 described above includes an internal space 133 that accommodates the first to third locking parts 121a.

The manipulation unit 150 may include, for example, a moving member 151, a push member 154, and a connecting member 153.

The moving member 151 is positioned to surround a portion of the exterior of the body member 130 and can rotate and move relative to the body member 130. The shape of the moving member 151 may be, for example, a pipe shape.

The inner diameter of the moving member 151 may be made to correspond to the outer diameter of the body member 130. The moving member 151 is installed to be in close contact with the circumferential surface of the body member 130 and can be moved along the longitudinal direction of the body member 130 or rotated based on the axial direction of the body member 130.

The push member 154 is located in the internal space 133 of the body member 130. The shape of the push member 154 may be, for example, a piston shape. As this push member 154 rotates and moves in conjunction with the moving member 151, it can selectively push the first to third locking parts 121a. A detailed description of the push member 154 will be provided later.

The connecting member 153 connects the moving member 151 and the push member 154 and may be positioned to penetrate the body member 130. The connecting member 153 may have a cylindrical shape.

These connecting members 153, push members 154, and moving members 151 may be coupled to each other after each is manufactured. Alternatively, it may be possible for the connecting member 153, the push member 154, and the moving member 151 to be manufactured as one piece, but the present invention is not limited thereto.

The aforementioned push member 154 may include, for example, a base portion 154a, a rail portion 154b, and a receiving portion 154c.

The base portion 154a may have a shape that can be accommodated in the internal space 133 of the body member 130.

The rail portion 154b may have a vertical cross-sectional shape of a rail shape to prevent the first to third locking portions 121a from being separated from the base portion 154a. In more detail, the rail portion 154b may include, for example, a first space (K) and a second space (M). The first space K may have a size corresponding to the first engaging portion 121a to the second engaging portion 122a.

Meanwhile, taking the first treatment member 121 among the first to third treatment members 121 to 123 as an example, in the first treatment member 121, the first locking portion 121a has a cutting blade. It may be connected to (121b) with a metal wire, and the second space M may have a size corresponding to the diameter of the metal wire. Accordingly, the first treatment member 121 can be prevented from being separated from the rail portion 154b.

In addition, the rail portion 154b is configured to prevent the base portion 154a from interfering with the first engaging portion 121a to the third engaging portion while the base portion 154a rotates in conjunction with the moving member 151. 1 It may be made to penetrate along the movement traces of the locking portion 121a to the third locking portion. At this time, the shape of the rail portion 154b when viewed from the axial direction of the base portion 154a may be a torus shape. Since the rail portion 154b is formed in the above shape, the base portion 154a can naturally rotate together with the moving member 151.

The rail portion 154b as described above can advance any one selected from the first to the third locking portions 121a toward the insertion member 110.

The receiving portion 154c is formed to be retracted from a portion of the rail portion 154b toward the first handle member 140. Even if the base portion 154a is moved in a direction away from the first handle member 140, the receiving portion 154c is the rail portion 154b among the first engaging portions 121a to the third engaging portions. The remaining items that have not advanced can be maintained in a retreated state toward the first handle member 140.

The above-described first treatment member 121 to third treatment member 123 may be positioned every 120 degrees around the virtual central axis of the base portion 154a. At this time, there may be two receiving portions 154c. Each of the two receiving portions 154c may be formed at an angle of 120 degrees around the virtual central axis of the base portion 154a, but the present invention is not limited thereto.

When the user wants to advance the first treatment member 121, the user rotates the moving member 151 by a certain angle so that the second treatment member 122 and the third treatment member 123 are divided into two receiving portions ( 154c) Be sure to place them in the corresponding positions.

When the user moves the moving member 151 toward the insertion member 110, the first treatment member 121 may be advanced by the rail portion 154b. At this time, since the second treatment member 122 and the third treatment member 123 maintain a constant amount of frictional force with the body member 130, they can maintain their current positions while being accommodated in the receiving portion 154c.

Thereafter, when the user moves the moving member 151 toward the first handle member 140, the first treatment member 121 retreats to where the second treatment member 122 and the third treatment member 123 are located. It can be.

Meanwhile, if the above-described body member 130 is described in more detail, the body member 130 may include, for example, a plurality of first guide parts 131 and second guide parts 132.

The first guide unit 131 may guide the movement path of the connection member 153 so that the manipulation unit 150 can move along the longitudinal direction of the body member 130. There may be three first guide parts 131 (131A, 131B, 131C). This first guide portion 131 may be pierced in a slit shape along the longitudinal direction of the body member 130.

As the connecting member 153 is linearly reciprocated by any one of the three first guide members 131A, 131B, and 131C, the first treatment member 121, the second treatment member 122, and the third treatment member (123) can be selectively advanced and retracted. To this end, the three first guide parts 131 may be positioned parallel to each other and positioned at every 120 degree angle based on the virtual central axis of the body member 130, but are not limited to this.

The second guide part 132 connects the plurality of first guide parts 131. The second guide part 132 may connect one end of the plurality of first guide parts 131 to each other so that the plurality of first guide parts 131 communicate with each other.

The second guide unit 132 may guide the movement path of the connection member 153 so that the manipulation unit 150 can rotate based on the axial direction of the body member 130. Like the first guide portion 131, the second guide portion 132 may also penetrate a portion of the body member 130 in a slit shape. The second guide portion 132 may be formed at 240 degrees along the radial direction of the body member 130, but is not limited to this.

The connecting member 153 of the operating unit 150 connects the moving member 151 and the push member 154 to the first guide part 131 and the second guide part 132 included in the body member 130. ) can be moved along.

When the user rotates the operating unit 150, the connecting member 153 moves along the second guide portion 132, and when the user moves the operating unit 150 forward or backward, the connecting member 153 moves along the first guide portion. Move along (131). The linear movement distance of the manipulation unit 150 may be limited to the length of the first guide part 131, and the rotation angle of the manipulation unit 150 may be limited to the length of the second guide part 132.

Meanwhile, the manipulation unit 150 may further include one or more second handle members 152.

The second handle member 152 is coupled to the moving member 151 and may allow a part of the user's body to be inserted. There may be two second handle members 152, and the second handle members 152 may be located on opposite sides of each other with the moving member 151 in between.

The second handle member 152 may have a ring shape, but is not limited thereto. The second handle member 152 allows the user to stably hold the moving member 151 without losing it while manipulating the manipulation unit 150.

The second handle member 152 may be formed integrally with the moving member 151. Alternatively, the second handle member 152 may be made detachable from the moving member 151.

Meanwhile, when describing the method of holding the tissue removal device 100 according to an embodiment of the present invention described above, the user inserts the thumb into the first handle member 140 and places two fingers among the remaining fingers in the second handle member 140. It can be inserted into the handle member 152.

The tissue removal device 100 according to an embodiment of the present invention removes the first treatment member 121 and the second treatment member 122 by relative movement of the second handle member 152 with respect to the first handle member 140. ) and advancement and retraction of the third treatment member 123 may be implemented.

Meanwhile, the tissue removal device 100 according to an embodiment of the present invention may further include a power supply member 160.

The power supply member 160 is installed to penetrate the body member 130 and can supply power to one or more of the first treatment member 121 to the third treatment member 123. When the first treatment member 121 and the second treatment member 122 among the first treatment member 121 to the third treatment member 123 are to be operated by receiving power, the power supply members 160A and 160B ) can be two. At this time, one power supply member 160A may be connected to the first treatment member 121, and the remaining power supply member 160B may be connected to the second treatment member 122.

The power supply member 160 may receive power from a wall power source or a battery (not shown) and supply high-frequency current to one or more of the first treatment member 121 to the third treatment member 123.

Meanwhile, the tissue removal device 100 according to an embodiment of the present invention may further include a movement limiting member 170.

The movement limiting member 170 may be installed outside the body member 130 to limit the movement range of the manipulation unit 150. The movement limiting member 170 has a rod shape and may be installed perpendicular to the longitudinal direction of the body member 130. The movement limiting member 170 may protrude from a portion of the circumference of the body member 130, but is not limited thereto.

The movement limiting member 170 may be formed integrally with the body member 130. The movement limiting member 170 may prevent the manipulation unit 150 from excessively moving toward the tube. The shape of the movement limiting member 170 for this purpose may be formed in various shapes, such as a ring shape or a protrusion shape.

The movement limiting member 170 as described above is used to prevent the operation unit 150 from advancing and causing the first locking portion 121a of the first treatment member 121 to strongly collide with the rear end of the receiving portion 154c. It may be desirable to be located at a specific location on member 130.

Meanwhile, the above-described first power supply member 160 and second power supply member 160 may be provided on the outer peripheral surface of the body member 130 separately from the movement limiting member 170.

Alternatively, the power supply member 160 may also be installed inside the movement limiting member 170. At this time, the number of movement limiting members 170 may be the same as the number of power supply members 160. When there are two power supply members 160, there may also be two movement restriction members 170, but the present invention is not limited to this.

By installing the power supply member 160 inside the movement limiting member 170, the structure of the tissue removal device 100 according to an embodiment of the present invention can be simplified.

Meanwhile, the tissue removal device 100 according to an embodiment of the present invention may further include a chemical solution supply member 180.

The chemical solution supply member 180 is installed to penetrate the body member 130 and communicates with the third treatment member 123 to supply a chemical solution to the third treatment member 123. The chemical solution supply member 180 may receive the chemical solution from a chemical solution storage tank (not shown) and supply the chemical solution to the third treatment member 123. Alternatively, it may be possible to store the chemical solution in the chemical solution supply member 180 itself and then supply the chemical solution to the third treatment member 123.

Hereinafter, the operation process of the tissue removal device 100 according to an embodiment of the present invention described above will be described with reference to the drawings.

FIG. 6 is a diagram showing a state in which the first treatment member is advanced in the tissue removal device, and FIG. 7 is a cross-sectional view of the tissue removal device of FIG. 6.

Referring to FIGS. 6 and 7, with the manipulation unit 150 of the tissue removal device 100 according to an embodiment of the present invention positioned as shown in FIG. 2, the user operates the manipulation unit 150 at a specific angle. It can be rotated and moved forward. At this time, the connecting member 153 may be advanced along one of the first guide parts 131A among the plurality of first guide parts 131.

Thereafter, the first locking portion 121a is advanced by the rail portion 154b, and the second locking portion 122a and the third locking portion can be accommodated in the receiving portion 154c and continue to maintain the retracted current position. Accordingly, the first treatment member 121 is exposed to the outside from the insertion member 110, and the user can perform the procedure with the first treatment member 121.

After the user completes using the first treatment member 121, the user may retract the manipulation unit 150. At this time, as shown in FIG. 2, all of the first engaging portion 121a, the second engaging portion 122a, and the third engaging portion (not shown) may be retracted by the rail portion 154b.

FIG. 8 is a diagram showing a state in which the second treatment member is advanced in the tissue removal device, and FIG. 9 is a cross-sectional view of the tissue removal device of FIG. 8.

Referring to FIGS. 8 and 9, with the manipulation unit 150 of the tissue removal device 100 according to an embodiment of the present invention positioned as shown in FIG. 2, the user operates the manipulation unit 150 at a specific angle. It can be rotated and moved forward. At this time, the connecting member 153 moves a certain distance along the second guide part 132, and is different from the first guide part 131A mentioned in the description of FIG. 7 among the plurality of first guide parts 131. It can be advanced along any other first guide part (131B).

Thereafter, the second locking portion 122a moves forward by the rail portion 154b, and the first locking portion 121a and the third locking portion are accommodated in the receiving portion 154c and can continue to maintain their retracted current position. Accordingly, the second treatment member 122 is exposed to the outside from the insertion member 110, and the user can perform the procedure with the second treatment member 122.

After the user completes using the second treatment member 122, the user retracts the manipulation unit 150. At this time, as shown in FIG. 2, all of the first engaging portion 121a, the second engaging portion 122a, and the third engaging portion (not shown) may be retracted by the rail portion 154b.

Figure 10 is a diagram showing a state in which the third treatment member is advanced in the tissue removal device.

Referring to FIG. 10, the third treatment member 123 is exposed to the outside from the insertion member 110 when the user operates the manipulation unit 150. In the case where the user attempts to use the third treatment member 123, this can be done through a similar process as described above, so a detailed description thereof will be omitted.

Figure 11 is a diagram showing a modified example of the operating unit.

Referring to FIG. 11, the moving member 251 included in the manipulation unit 150 may include a first rotating part 251a and a second rotating part 251b as a modified example.

The first rotating part 251a may be coupled to the second handle member 152.

The second rotating part 251b may be rotatably coupled to the first rotating part 251a. The second rotating part 251b and the first rotating part 251a may be rotated relative to each other on the same axis.

The coupling structure of the first rotating part 251a and the second rotating part 251b for this purpose is such that the first rotating part 251a and the second rotating part 251b have a locking protrusion (not shown) and a locking groove (not shown) at the parts where they come into contact with each other. may be formed, but is not limited to this, and any structure may be used as long as the first rotating part 251a and the second rotating part 251b can be rotated relative to each other.

In the manipulation unit 150 as described above, the connecting member 153 can be moved along the second guide part 132 even if the first rotating part 251a is not rotated and only the second rotating part 251b is rotated. That is, the user can hold the first handle member 140 and the second handle member 152 with one hand and rotate and operate the second rotating part 251b with the other hand.

In the above, the configuration and features of the present invention have been described based on the embodiments of the present invention, but the present invention is not limited thereto, and various changes or modifications may be made within the spirit and scope of the present invention. It is obvious to those skilled in the art, and therefore, it is stated that such changes or modifications fall within the scope of the appended patent claims.

100: tissue removal device 110: insertion member
121: first treatment member 121a: first engaging portion
121b: cutting blade 122: second treatment member
122a: second catching portion 122b: noose
123: third treatment member 123b: nozzle
130: Body member 131: First guide portion
132: second guide part 133: internal space
140: first handle member 150: operating unit
151, 251: moving member 152: second handle member
153: connection member 154: push member
154a: base part 154b: rail part
154c: receiving portion 160: absence of power supply
170: Absence of movement restriction 180: Absence of chemical supply
251a: first rotating part 251b: second rotating part

Claims (15)

An insertion member inserted into the body;
a first treatment member positioned inside the insertion member;
a second treatment member positioned inside the insertion member;
a third treatment member positioned inside the insertion member;
a body member coupled to the insertion member and installed to allow the first to third treatment members to pass through;
Rotatably coupled to the body member, coupled to be movable along the longitudinal direction of the body member, receiving one end of the first treatment member to the third treatment member, and the first treatment member to the third treatment member. an operating unit that selectively advances or retracts each; and
A first handle member coupled to a portion of the body member where the manipulation unit is located,
A first locking portion is formed at an end of the portion of the first treatment member accommodated in the operating unit,
A second locking portion is formed at an end of the portion of the second treatment member accommodated in the operating unit,
A third locking portion is formed at an end of a portion of the third treatment member accommodated in the operating unit,
When the operating unit is positioned adjacent to the first handle member, the operating unit retracts all of the first to third locking portions,
When the manipulation unit is moved in a direction away from the first handle member by an external force while positioned adjacent to the first handle member, the manipulation unit is moved in a direction away from the first handle member to the third lock member. A tissue removal device that moves one selected from the first to third treatment members to be exposed to the outside from the insertion member. delete According to paragraph 1,
The body member includes an internal space accommodating the first to third engaging portions,
The operating unit is,
a moving member positioned to surround a portion of the exterior of the body member and rotated and moved relative to the body member;
a push member located in the inner space of the body member and rotating and moving in conjunction with the moving member to selectively push the first to third locking portions; and
A tissue removal device comprising: a connecting member that connects the moving member and the push member and is positioned to penetrate the body member. According to paragraph 3,
The operating unit is,
The tissue removal device further comprises one or more second handle members coupled to the moving member and allowing insertion of a portion of the user's body. According to paragraph 4,
The moving member is,
a first rotating part coupled to the second handle member; and
A tissue removal device comprising a second rotary unit coupled to rotate with the first rotary unit. According to paragraph 3,
The push member is,
base part;
The vertical cross-section is shaped like a rail to prevent the first to third locking parts from being separated from the base portion, and in the process of rotating the base part in conjunction with the moving member, the first to third locking parts are prevented from being separated from the base portion. It is made to penetrate along the movement trajectory of the first to the third locking parts to prevent interference with the third locking part, and any one selected from the first to the third locking parts is inserted into the insertion member. A rail portion that advances to the side; and
It is formed to be retracted from a portion of the rail portion toward the first handle member, so that even if the base portion moves in a direction away from the first handle member, it is advanced by the rail portion among the first to third locking portions. A tissue removal device including a receiving portion that maintains the remaining unused material retracted toward the first handle member. According to paragraph 3,
The body member is,
a plurality of first guide parts that guide the movement path of the connection member so that the manipulation unit can move along the longitudinal direction of the body member; and
A tissue removal device comprising a second guide unit that connects the plurality of first guide units and guides a movement path of the connection member so that the manipulation unit can rotate based on the axial direction of the body member. According to paragraph 1,
The tissue removal device further comprises a power supply member installed to penetrate the body member and supplying power to one or more of the first treatment member to the third treatment member. According to paragraph 1,
The tissue removal device further includes a movement limiting member installed outside the body member to limit a movement range of the manipulation unit. According to clause 9,
The tissue removal device further includes a power supply member installed inside the movement limiting member and supplying power to one or more of the first treatment member and the second treatment member. According to paragraph 1,
A tissue removal device wherein the first handle member is rotatably coupled to the body member. According to paragraph 1,
A tissue removal device in which a portion of the first treatment member that protrudes from the insertion member includes a cutting blade. According to paragraph 1,
A tissue removal device in which a portion of the second treatment member that protrudes from the insertion member is formed as a snare with a closed curve shape. According to paragraph 1,
A tissue removal device in which a portion of the third treatment member that protrudes from the insertion member is a nozzle for injecting a chemical solution into tissues inside the body. According to paragraph 1,
The tissue removal device further includes a chemical solution supply member installed to penetrate the body member and communicating with the third treatment member to supply a chemical solution to the third treatment member.

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