Endoscope treatment tool

Abstract

Provided is an endoscope treatment tool in which a connector supplied with high-frequency current does not rotate and the connector and a wire connected to a high-frequency treatment device are properly connected. The endoscope treatment tool includes a sheath, a handle main body attached to a base end portion of the sheath, a wire disposed so as to be able to advance and retreat along a length axis direction of the handle main body and to be able to rotate around the length axis, a treatment portion connected to a front end of the wire and disposed on a front end side of the sheath, a rotation handle that is able to move relative to the handle main body and is connected to a base end portion of the wire, and a connector having a through passage through which the wire is able to advance and retreat and to rotate, the connector extending in a direction intersecting an advancing and retreating direction of the wire and having electrical conductivity.

Description

[0001] This application is a divisional application of the application filed on January 29, 2023, with application number 202310043915.X and invention title "Determination Apparatus for Endoscope". Technical Field

[0002] This invention relates to an endoscopic treatment device.

[0003] This application claims priority based on U.S. Provisional Patent Application No. 63 / 306154, filed in the United States on February 3, 2022, the contents of which are incorporated herein by reference. Background Technology

[0004] Traditionally, endoscopic treatment instruments used in endoscopic procedures include hemostatic forceps used to cauterize bleeding objects for hemostasis, high-frequency knives, and other high-frequency treatment devices that transmit high-frequency current. High-frequency current is supplied to the line connected to the high-frequency treatment device via an A-wire (active wire) connected to a connector located in the operating section of the endoscopic treatment instrument.

[0005] When the high-frequency processing device needs to be rotated, the wire connected to the high-frequency processing device is mounted on the operating part in a manner that allows it to rotate around the length axis of the operating part. In this case, when the wire is rotated to rotate the high-frequency processing device, the connector mounted on the wire also rotates, so wire A is easily wound around the operating part.

[0006] The endoscope treatment device described in Patent Document 1 allows the front end mechanism to rotate by rotating the handle, thereby rotating only the cable without rotating the connector about its length axis. The power plug is mounted on a non-rotating operating member and does not rotate even when the front end mechanism is rotated.

[0007] Existing technical documents

[0008] Patent documents

[0009] Patent Document 1: Japanese Patent Application Publication No. 2009-034388 Summary of the Invention

[0010] The problem the invention aims to solve

[0011] However, in the endoscopic treatment device described in Patent Document 1, the power plug and the cable are connected using a flexible conductive part. This flexible conductive part can sometimes hinder the movement of the cable. Therefore, the connection method between the power plug and the cable in the endoscopic treatment device described in Patent Document 1 is not necessarily optimal.

[0012] Based on the above, the object of the present invention is to provide an endoscope treatment device in which the connector supplied with high-frequency current does not rotate and the connector and the wire connected to the high-frequency treatment device are properly connected.

[0013] Solution for solving the problem

[0014] To address the above problems, the present invention proposes the following solution.

[0015] The first technical solution of the present invention provides an endoscopic treatment device comprising: a sheath; a handle body mounted on the base end of the sheath; a wire arranged to be able to move forward and backward along the length axis of the handle body and to rotate about the length axis; a treatment part connected to the front end of the wire and disposed on the front end side of the sheath; a rotating handle movable relative to the handle body and connected to the base end of the wire; and a connector having a through passage through which the wire can move forward and backward and rotate, the connector extending in a direction intersecting the forward and backward direction of the wire and having electrical conductivity.

[0016] The effects of the invention

[0017] In the endoscopic treatment device of the present invention, the connector supplied with high-frequency current does not rotate, and the connector and the wire connected to the high-frequency treatment device are properly connected. Attached Figure Description

[0018] Figure 1 This is an overall diagram of an endoscope treatment system having the endoscope treatment device of the first embodiment.

[0019] Figure 2 This is an overall diagram showing the endoscope's treatment apparatus.

[0020] Figure 3 This is a side view of the operating section of the endoscopic treatment device.

[0021] Figure 4 This is a top view of the operating unit.

[0022] Figure 5 This is a cross-sectional view of the operating section.

[0023] Figure 6 This is a diagram showing the connector of the operating unit.

[0024] Figure 7 It is along the operating part Figure 3 A cross-sectional view of the X-ray.

[0025] Figure 8 This is a cross-sectional view of the slider of the operating part.

[0026] Figure 9This is a cross-sectional view of the slider when the lower side of the operating part faces the vertical lower side.

[0027] Figure 10 This is a cross-sectional view of the slider when the upper side of the operating part faces the vertical lower side.

[0028] Figure 11 This is a cross-sectional view of the slider when the left side of the operating part faces the vertically downward side.

[0029] Figure 12 This is a diagram showing the slit formed in the tube of the operating line.

[0030] Figure 13 This is a diagram showing a variation of the through-path of the connector.

[0031] Figure 14 This is a diagram showing the operating section of the endoscopic treatment device according to the second embodiment.

[0032] Figure 15 This is a cross-sectional view of the operating section.

[0033] Figure 16 This is a cross-sectional view of the fixed sliding member of the operating part.

[0034] Figure 17 This is a diagram showing the operating section of the endoscope treatment device according to the third embodiment.

[0035] Figure 18 This is a cross-sectional view of the handle body of the operating unit.

[0036] Figure 19 This is a diagram showing a modified example of the conductive component of the handle body.

[0037] Figure 20 This is a diagram showing another variation of the conductive component of the handle body.

[0038] Figure 21 It is the connector along Figure 20 Y-Y sectional view.

[0039] Figure 22 This is a diagram showing a modified example of the operating part of the endoscope treatment device according to the first embodiment.

[0040] Figure 23 This is the front view of the variant.

[0041] Figure 24 This is the right view of the variant example.

[0042] Figure 25 This is the left view of the variant.

[0043] Figure 26This is a top view of the modified example.

[0044] Figure 27 This is a bottom view of the modified example.

[0045] Figure 28 This is the rear view of the modified example.

[0046] Explanation of reference numerals in the attached figures

[0047] 300. Endoscope handling system; 200. Endoscope; 100, 100B, 100C. Endoscope handling instruments; 1. Sheath; 2. Operating line; 3. Support component; 4. Pliers (pliers component); 4C. Knife; 5. 5B, 5C, 5D. Operating part; 6. 6B, 6C, 6D. Handle body; 69. 69B, 69C. Conductive component; 7. 7C. Connector; 8. 8C. Sliding component; 9. 9B, 9C. Rotating handle; G. Gap; G1. Vertical gap; G2. Horizontal gap; CS1. Vertical sliding component gap; CS2. Horizontal sliding component gap; CC1. Vertical connector gap; CC2. Horizontal connector gap. Detailed Implementation

[0048] (First Implementation)

[0049] Reference Figures 1 to 13 This describes an endoscope treatment system 300 equipped with an endoscope treatment device 100 according to the first embodiment of the present invention. Figure 1 This is an overall diagram of the endoscopic treatment system 300.

[0050] [Endoscopic handling system 300]

[0051] like Figure 1 As shown, the endoscope treatment system 300 includes an endoscope treatment device 100 and an endoscope 200. The endoscope treatment device 100 is inserted into the endoscope 200 for use.

[0052] [Endoscope 200]

[0053] Endoscope 200 is a well-known flexible endoscope, including an insertion part 210 inserted into the body from the tip, an operating part 220 mounted at the base of the insertion part 210, and a universal cable 230 mounted on the operating part 220.

[0054] The insertion part 210 is a slender, longitudinally elongated member capable of being inserted into a lumen. The insertion part 210 has a front end portion 211, a curved portion 214, and a flexible portion 215. The front end portion 211, the curved portion 214, and the flexible portion 215 are connected sequentially from the front end side. A channel 216 for inserting a treatment device 100 is provided inside the insertion part 210. The front end portion 211 has a front opening 212 of the channel 216 and a camera portion 213.

[0055] The camera unit 213 is equipped with an image sensor such as a CCD or CMOS, and is capable of capturing images of the area to be processed. The bending part 214 bends according to the operation performed by the user on the operating unit 220. The flexible part 215 is a flexible tubular part.

[0056] The operating unit 220 is connected to the flexible part 215. The operating unit 220 has a handle 221, an input part 222, and a pliers jaw 223. The handle 221 is a member supported by the user. The input part 222 receives an operating input for bending the bending part 214. The pliers jaw 223 is the base opening of the channel 216.

[0057] The universal cable 230 connects the endoscope treatment device 100 to external equipment. Camera cables, fiber optic cables, etc., that output camera signals captured by the camera unit 213 to the outside are inserted into the universal cable 230.

[0058] [Endoscopic treatment instruments 100]

[0059] Figure 2 This is an overall view of the endoscopic treatment device 100.

[0060] Endoscopic treatment instrument 100 (also referred to as treatment instrument 100) is a hemostatic forceps used for cauterization of the affected area to achieve hemostasis. Treatment instrument 100 includes a sheath 1 and an operating line 2 (see reference). Figure 5 ), support member 3, forceps (forceps member) 4, and operating part 5. In the following description, the side of the treatment device 100 that is inserted into the patient's body in the longitudinal axis direction A is referred to as the "front end side A1", and the side of the operating part 5 is referred to as the "base end side A2".

[0061] [Sheath 1]

[0062] The sheath 1 is flexible and is a longitudinally elongated coiled sheath extending from the front end 1a to the base end 1b. The sheath 1 has an outer diameter capable of being inserted into the channel 216 of the endoscope 200. Figure 1 As shown, with the sheath 1 inserted into the channel 216, the front end 1a of the sheath 1 can protrude and retract relative to the front opening 212 of the channel 216. The sheath 1 may also be insulating.

[0063] The base end 1b of the sheath 1 utilizes the connecting part 12 (see reference). Figure 5 It is connected to the operating part 5 in a manner that allows it to rotate around the length axis.

[0064] [Operation Line 2]

[0065] The operating line 2 penetrates the internal space of the sheath 1. The front end of the operating line 2 is connected to the pliers 4, and the base end of the operating line 2 is connected to the operating part 5. The operating line 2 consists of a metal wire 21 and a metal tube 22 located at the base end of the wire 21 (see reference). Figure 5 The wire 21 and the tube 22 are fixed together in a manner that prevents them from moving relative to each other, by means of chemical bonding such as adhesive or mechanical bonding such as riveting.

[0066] [Supporting Component 3]

[0067] The support member 3 is located at the front end 1a of the sheath 1, supporting the pliers 4 so that they can be opened and closed. The support member 3 may also have a linkage mechanism that converts the forward and backward movement of the operating line 2 into the opening and closing movement of the pliers 4.

[0068] [Pliers 4]

[0069] The forceps (forceps component) 4 is a component for grasping biological tissue. The forceps 4 is supported by the support component 3 so that it can be opened and closed toward the front end side A1. The forceps 4 is made of metal materials such as stainless steel and includes a first forceps plate 41 and a second forceps plate 42. The support component 3 and the forceps 4 constitute the "treatment section 110" for treating the affected area.

[0070] [Operation Section 5]

[0071] Figure 3 This is a side view of the operating unit 5. Figure 4 This is a top view of the operating unit 5.

[0072] An operating part (handle) 5 is located on the base end side A2 of the sheath 1. The operating part 5 includes a handle body 6, a connector 7, a slider 8, and a rotary handle 9. In this embodiment, the connector 7 is mounted on the slider 8.

[0073] In the following description of the operation section 5, the direction in which the connector 7 is located relative to the handle body 6 is designated as the upper side B1 in the vertical direction B, and the side in the vertical direction B opposite to the upper side B1 is designated as the lower side B2. Furthermore, the direction perpendicular to the length axis direction A and the vertical direction B is designated as the width direction C or the left-right direction C. The direction to the right when viewing the base side A2 from the front end side A1 is designated as the right side C1 in the width direction C, and the direction to the left is designated as the left side C2 in the width direction C.

[0074] Figure 5 This is a cross-sectional view of the operating section 5.

[0075] The handle body 6 has an internal space 6s through which the operation cable 2 passes. The operation cable 2 extends to the slider 8 through the internal space 6s of the sheath 1 and the internal space 1s of the handle body 6. Figure 4As shown, the handle body 6 has a body slit 61 extending along the length axis direction A. The body slit 61 communicates with the internal space 6s.

[0076] The handle body 6 has a thumb ring 62 on the base side A2. The surgeon can support the handle body 6 by inserting their thumb through the thumb ring 62.

[0077] Connector 7 can be connected to a high-frequency power supply device (not shown), and is electrically and physically connected to the base end of the operating line 2. Connector 7 can supply high-frequency current from the high-frequency power supply device to the clamps 4 via the operating line 2.

[0078] The connector 7 is supported by a slider 8 and is formed into a generally cylindrical shape extending along the extension direction D. The extension direction D is the direction that intersects the length axis direction A, which is the forward and backward direction of the operating line 2, and in this embodiment, it is the direction orthogonal to the length axis direction A. The connector 7 has a connecting portion 71, a power plug 74, and a reduced diameter portion 75.

[0079] Figure 6 This is a diagram showing the connecting part 71 of connector 7.

[0080] The connecting portion 71 is generally cylindrical and is located on the inner side DI of one side in the extending direction D. The connecting portion 71 passes through the main body slit 61 of the handle body 6 and is connected to the operation line 2. The connecting portion 71 has a through passage 72 and a slit 73.

[0081] Figure 7 It is along the operation unit 5 Figure 3 A cross-sectional view of the X-ray.

[0082] The through passage 72 is a through hole formed along the length axis A of the operating line 2, allowing the tube 22 located at the base end of the operating line 2 to pass through in a retractable manner. A gap G is provided between the inner circumferential surface of the through passage 72 and the operating line 2. The gap G in the vertical direction B is designated as "vertical gap G1", and the gap G in the horizontal direction C is designated as "horizontal gap G2".

[0083] Slit 73 is a slit that extends from the through passage 72 to the end of the inner side DI. Slit 73 is continuously formed from the front end side A1 to the base end side A2 in the length axis direction A.

[0084] The power plug 74 is a plug located on the outer side DO on the other side of the extension direction D, for connecting the A wire (active wire).

[0085] The reduced diameter portion 75 is the middle portion in the extending direction D, and it is located between the through passage 72 and the power plug 74. The outer diameter of the reduced diameter portion 75 is smaller than the outer diameter of the connecting portion 71 and the outer diameter of the power plug 74.

[0086] Figure 8 This is a cross-sectional view of slider 8.

[0087] The slider 8 is mounted in a manner that allows it to move forward and backward along the main slit 61 of the handle body 6. The slider 8 can move forward and backward along the length axis A relative to the handle body 6, but cannot rotate about the length axis. The base end of the slider 8 is connected to the operating line 2. The operating line 2 moves forward and backward by the surgeon moving the slider 8 relative to the handle body 6.

[0088] The slider 8 is mounted in a manner that allows it to move forward and backward relative to the handle body 6. Therefore, as... Figure 8 As shown, the slider 8 has a gap in the vertical direction B between itself and the handle body 6 (hereinafter also referred to as "vertical slider gap CS1"). Furthermore, as... Figure 7 As shown, the slider 8 has a gap in the left-right direction C between itself and the handle body 6 (hereinafter referred to as "left-right slider gap CS2").

[0089] The sliding member 8 has an operation line support portion 81 that supports the operation line 2, a connector support portion 84 that supports the connector 7, and double rings 87 provided on both sides in the vertical direction B.

[0090] The operating line support portion 81 supports the base end of the operating line 2. The operating line support portion 81 has a first through hole 82 extending along the length axis direction A and a connecting member 83 installed in the base end opening 82a of the first through hole 82.

[0091] The connecting member 83 is a component fixed to the base end of the operating line 2, and has a flexible claw (clamping fitting) 83a on the base end side A2. The connecting member 83 is fixed to the base end of the operating line 2, for example, by bonding or pressing. The claw 83a engages with the edge of the base end opening 82a of the first through hole 82. The operating line 2 (tube 22) is mounted to the slider 8 by means of the claw 83a in a manner that it cannot move forward or backward along the length axis direction A relative to the slider 8, but can rotate about the length axis.

[0092] The connector support portion 84 supports the connector 7. The connector support portion 84 has a second through hole 85 extending in the vertical direction B and a cylindrical plug protection portion 86 formed on the upper side B1 of the second through hole 85.

[0093] The second through hole 85 is a through hole through which the reduced diameter portion 75 of the connector 7 passes. For example... Figure 8 As shown, the length of the vertical direction B of the second through hole 85 is shorter than the length of the vertical direction B of the reduced diameter portion 75. Therefore, the connector 7 has a gap in the vertical direction B between itself and the slider 8 (hereinafter referred to as "vertical connector gap CC1").

[0094] like Figure 7 As shown, the length of the second through hole 85 in the left-right direction C is longer than the length of the reduced diameter portion 75 of the connector 7 in the left-right direction C. Furthermore, the length of the main body slit 61 of the handle body 6 in the left-right direction C is longer than the length of the connecting portion 71 of the connector 7 in the left-right direction C. Therefore, the connector 7 has a gap in the left-right direction C between itself and the handle body 6 and the slider 8 (hereinafter referred to as "left-right connector gap CC2").

[0095] Figure 9 This is a cross-sectional view of the slider 8 when the lower side B2 of the operating part 5 faces the vertical lower side.

[0096] When the lower side B2 of the operating part 5 faces the vertical downward side (gravity direction), the connector 7, due to the upper and lower connector gap CC1, therefore... Figure 9 The connector 7 moves downwards to B2 relative to the handle body 6. The gap between the upper and lower connectors CC1 is larger than the gap between the upper and lower connectors G1. Therefore, the through-path 72 of the connector 7 contacts the operating line 2 on the upper side B1 in a manner that allows it to conduct electricity. That is, in the radial direction R of the connector 7 towards the operating line 2 (refer to...) Figure 6 When the first direction (lower B2, inner DI) of the through passage 72 moves, the through passage 72 contacts the operating line 2 in a way that allows it to be energized in the second direction (upper B1, outer DO) on the side opposite to the first direction.

[0097] The sliding member 8 of the support connector 7 has an upper and lower sliding member gap CS1, therefore, as Figure 9 The slider 8 moves downwards to B2 relative to the handle body 6. As a result, the connector 7, supported by the slider 8, also moves downwards to B2 relative to the handle body 6. Considering the gap CS1 between the upper and lower sliders, if the sum of the gaps CC1 between the upper and lower connectors and CS1 is greater than the upper and lower gap G1, then the through-path 72 of the connector 7 will contact the operating line 2 at the upper B1 in a manner that allows it to conduct electricity. For example, if the gap CC1 between the upper and lower connectors is zero, then the gap CS1 between the upper and lower sliders only needs to be greater than the upper and lower gap G1.

[0098] Figure 10 This is a cross-sectional view of the slider 8 when the upper side B1 of the operating part 5 faces the vertically downward side.

[0099] When the upper side B1 of the operating part 5 faces the vertically downward side, the connector 7, due to the upper and lower connector gap CC1, therefore... Figure 10 The connector 7 moves upward to the upper side B1 relative to the handle body 6. The gap between the upper and lower connectors CC1 is larger than the gap between the upper and lower connectors G1. Therefore, the through-path 72 of the connector 7 contacts the operating line 2 in a manner that allows it to conduct electricity at the lower side B2. That is, in the radial direction R of the connector 7 towards the operating line 2 (refer to...) Figure 6When the second direction (upper side B1, outer side DO) on the through passage 72 moves, the through passage 72 contacts the operating line 2 in a way that allows it to be energized in the first direction (lower side B2, inner side DI) on the side opposite to the second direction.

[0100] The sliding member 8 of the support connector 7 has an upper and lower sliding member gap CS1, therefore, as Figure 10 The slider 8 moves upwards relative to the handle body 6 at point B1. As a result, the connector 7, supported by the slider 8, also moves upwards relative to the handle body 6 at point B1. Considering the gap CS1 between the upper and lower sliders, if the sum of the gaps CC1 between the upper and lower connectors and CS1 is greater than the upper and lower gap G1, then the through-path 72 of the connector 7 will contact the operating line 2 at point B2 in a manner that allows it to conduct electricity. For example, if the gap CC1 between the upper and lower connectors is zero, then the gap CS1 between the upper and lower sliders only needs to be greater than the upper and lower gap G1.

[0101] Figure 11 This is a cross-sectional view of the slider 8 when the left side C2 of the operating part 5 faces the vertically downward side.

[0102] When the left side C2 of the operating section 5 faces the vertically downward side, the connector 7, due to the gap between the left and right connectors CC2, therefore... Figure 11 The connector 7 moves to the left (C2) relative to the handle body 6. The gap between the left and right connectors (CC2) is larger than the gap between the left and right connectors (G2). Therefore, the through-path 72 of the connector 7 contacts the operating line 2 on the right side (C1) in a manner that allows it to conduct electricity. That is, in the radial direction (R) of the connector 7 towards the operating line 2 (refer to...), Figure 6 When the first direction (left C2) of the through passage 72 is moved, the through passage 72 contacts the operating line 2 in a second direction (right C1) on the side opposite to the first direction in a manner that enables it to be energized.

[0103] The sliding member 8 of the support connector 7 has a left and right sliding member gap CS2, therefore, Figure 11 The handle body 6 moves to the left by C2 relative to the handle body 6. As a result, the connector 7 supported on the slider 8 also moves to the left by C2 relative to the handle body 6. Considering the gap CS2 between the left and right sliders, if the sum of the gaps CC2 between the left and right connectors and the gaps CS2 between the left and right sliders is greater than the left and right gaps G2, then the through passage 72 of the connector 7 will contact the operating line 2 on the right side C1 in a manner that allows it to be energized. For example, when the gaps CC2 between the left and right connectors are zero, the gaps CS2 between the left and right sliders only need to be greater than the left and right gaps G2.

[0104] The same applies to the right side C1 of the operating part 5, which faces the vertically downward side (in the direction of gravity). Similarly, in the radial direction R of the connector 7 towards the operating line 2 (refer to...). Figure 6When the second direction (right C1) on the through passage 72 is moved, the through passage 72 contacts the operating line 2 in a manner that enables it to be energized in the first direction (left C2) on the side opposite to the second direction.

[0105] The same applies to the direction perpendicular to the length axis A of the operating section 5, and excluding the vertical direction B and the left-right direction C, which faces vertically downwards; in the radial direction R of the connector 7 towards the operating line 2 (refer to...). Figure 6 When the connector 7 moves in the first direction, the through-pass 72 contacts the operating line 2 in a energized manner in the second direction on the side opposite to the first direction. In the radial direction R (refer to...) of the connector 7 towards the operating line 2... Figure 6 When the operating part 5 is moved in the second direction, the through passage 72 contacts the operating line 2 in the first direction in a manner that enables it to be energized. That is, regardless of which direction the operating part 5 is tilted, a portion of the through passage 72 is always in contact with the operating line 2 in a manner that enables it to be energized.

[0106] like Figure 5 As shown, the rotary handle 9 is located in the handle body 6 at a position A1 closer to the front end than the slider 8. The rotary handle 9 cannot move forward or backward along the length axis A relative to the handle body 6, but it can rotate about the length axis. The rotary handle 9 has a sleeve support portion 91 for supporting the sleeve 1, a rotational connection portion 92 connected to the handle body 6 in a manner that allows rotation about the length axis, a through hole 93 for the operation line 2 to pass through, and a line drive portion 94 for rotating and driving the operation line 2.

[0107] The rotating connection 92 is a recessed portion that is recessed from the base end side A2 of the rotating handle 9 toward the front end side A1. The rotating connection 92 is mounted on the front end 6a of the handle body 6 in a manner that allows it to rotate about its length axis.

[0108] The through hole 93 is a through hole formed along the rotation axis of the rotary handle 9. The operating line 2 can move forward and backward along the length axis direction A inside the through hole 93 and can rotate around the length axis.

[0109] like Figure 5 As shown, the wire drive portion 94 is a protrusion that extends radially inward from the inner circumference of the through hole 93. The wire drive portion 94 is formed on both sides, separated by the rotation axis of the rotating handle.

[0110] Figure 12 This is a diagram showing the slit 23 formed in tube 22.

[0111] The wire drive unit 94 engages with the slit 23 formed in the tube 22. The slit 23 is a recess extending along the length axis direction A. The slit 23 is formed on both sides, separated by the wire 21. The tube 22 can move forward and backward relative to the wire drive unit 94 of the rotating handle 9 along the length axis direction A, but cannot rotate relative to the wire drive unit 94 of the rotating handle 9 about the length axis. When the rotating handle 9 rotates about the length axis, the wire drive unit 94 causes the operating wire 2 to rotate about the length axis by rotating the slit 23 about the length axis.

[0112] The length of the slit 23 in the longitudinal axis direction A is longer than the retractable length of the slider 8 in the longitudinal axis direction A. Therefore, even when the operating line 2 moves forward or backward according to the forward or backward movement of the slider 8, the line drive unit 94 is located inside the slit 23, so the line drive unit 94 can maintain a state in which it can rotate and drive the operating line 2.

[0113] [How to use the endoscopic treatment system 300]

[0114] Next, the operation performed using the endoscopic treatment system 300 of this embodiment (method of using the endoscopic treatment system 300) will be described. Specifically, the incision and dissection of the lesion and the hemostasis of the lesion in endoscopic treatments such as ESD (endoscopic submucosal dissection) will be described.

[0115] In most cases of open surgery, bleeding occurs. When bleeding occurs, the surgeon performs hemostasis. Hemostasis involves cauterizing the ulcerated area after the lesion has been removed, or cauterizing the bleeding site from the open surgery procedure to stop the bleeding.

[0116] The surgeon rotates the handle 9, which in turn rotates the operating line 2 and the forceps 4, positioning the forceps 4 in the appropriate treatment position. Even when the handle 9 is rotated, the connector 7 does not rotate, so the A wire (active wire) connected to the connector 7 will not become tangled in the operating part 5.

[0117] The surgical operator supplies a high-frequency current to the operating line 2. Regardless of which direction is perpendicular to the longitudinal axis A of the operating part 5 and faces vertically downwards, at least a portion of the through-passage 72 is in contact with the operating line 2 in a manner that allows it to conduct electricity. Therefore, regardless of the orientation of the operating part 5, a high-frequency current is supplied from the connector 7 to the operating line 2, enabling the forceps 4 to cauterize the bleeding site.

[0118] The surgeon continues the above actions (treatments) as needed, and finally removes the lesion to end the ESD procedure.

[0119] In the endoscopic treatment device 100 of this embodiment, the connector 7, which is supplied with high-frequency current, does not rotate, and the A-wire (active wire) connected to the connector 7 does not become entangled in the operating part 5. Furthermore, regardless of the orientation of the operating part 5, the connector 7 and the operating line 2 are properly connected.

[0120] The first embodiment of the present invention has been described in detail above with reference to the accompanying drawings. However, the specific structure is not limited to this embodiment, and design changes are included without departing from the spirit of the present invention. Furthermore, the constituent elements shown in the above embodiments and variations can be appropriately combined to form a configuration.

[0121] In the above embodiment, the treatment unit 110 is a hemostatic forceps for cauterizing the affected area to stop bleeding, but the type of treatment unit is not limited to this. The treatment device can be any high-frequency treatment device that carries a high-frequency current, such as a high-frequency knife.

[0122] Figure 13 This is a diagram showing a modified example of the through-path 72, namely through-path 72A.

[0123] The through passage 72A has an inner rib 72c protruding from its inner periphery toward the radial direction R. The rib 72c extends along the length axis direction A. By adjusting the size of the rib 72c, the contact area between the through passage 72A and the operating line 2 can be adjusted.

[0124] (Second Implementation)

[0125] Reference Figures 14-16 The endoscopic treatment device 100B according to the second embodiment of the present invention will be described. In the following description, the same reference numerals will be used for structures shared with the components already described, and repeated descriptions will be omitted.

[0126] [Endoscopic treatment device 100B]

[0127] Endoscopic treatment device 100B (also known as treatment device 100B) is a hemostatic forceps used for cauterizing the affected area to stop bleeding. Treatment device 100B includes a sheath 1, an operating line 2, a support member 3, forceps (forceps member) 4, and an operating part 5B.

[0128] Figure 14 This is a diagram representing the operating unit 5B.

[0129] An operating part 5B is located on the base end side A2 of the sheath 1. The operating part 5B includes a handle body 6B, a connector 7, and a rotary handle 9B. In this embodiment, the connector 7 is mounted on the handle body 6B.

[0130] Figure 15 This is a sectional view of the operating unit 5B.

[0131] The handle body 6B has a cylindrical portion 63, a fixed sliding member 64, and a rotating handle support portion 65. The cylindrical portion 63 is generally cylindrical and has an internal space 6s through which the operation line 2 passes. A connecting portion 12 is accommodated on the side of the cylindrical portion 63, which connects the base end 1b of the sheath 1 so that it can rotate about its length axis.

[0132] The fixed slider 64 has the same shape as the slider 8 in the first embodiment. The fixed slider 64 is integrally formed with the cylindrical portion 63 and is part of the handle body 6B. Therefore, unlike the slider 8 in the first embodiment, the fixed slider 64 cannot move forward or backward along the length axis direction A.

[0133] Figure 16 This is a cross-sectional view of the fixed sliding member 64.

[0134] The fixed slider 64 has the same connector support portion 84 as the slider 8 in the first embodiment. The connector 7 has an upper and lower connector gap CC1 in the vertical direction B between itself and the fixed slider 64. In addition, the connector 7 has a left and right connector gap CC2 in the left and right direction C between itself and the fixed slider 64.

[0135] Similar to the first embodiment, the gap between the upper and lower connectors CC1 is larger than the gap between the upper and lower connectors G1. Furthermore, the gap between the left and right connectors CC2 is larger than the gap between the left and right connectors G2. Therefore, in the radial direction R of the connector 7 towards the operating line 2 (refer to...), Figure 6 When the connector 7 moves in the first direction, the through-pass 72 contacts the operating line 2 in a energized manner in the second direction on the side opposite to the first direction. In the radial direction R (refer to...) of the connector 7 towards the operating line 2... Figure 6 When the second direction is moved, the through passage 72 contacts the operating line 2 in the first direction in a manner that enables it to be energized.

[0136] The rotating handle support 65 is provided on the base end side A2 of the fixed sliding member 64, supporting the rotating handle 9B so that it can move forward and backward along the length axis direction A and can rotate around the length axis.

[0137] The rotary handle 9B is supported by the rotary handle support 65 of the handle body 6B. The rotary handle 9B can move forward and backward along the length axis A relative to the handle body 6B and can rotate about the length axis.

[0138] The base end of the operating line 2 is fixed to the rotary handle 9B. The base end of the operating line 2 is fixed to the rotary handle 9B by means of chemical bonding such as adhesive or mechanical bonding such as riveting. The operating line 2 moves forward and backward by moving the rotary handle 9B along the length axis direction A. The operating line 2 rotates by rotating the rotary handle 9B about the length axis.

[0139] In the endoscopic treatment device 100B using this embodiment, the connector 7, which is supplied with high-frequency current, does not rotate, and the A wire (active wire) connected to the connector 7 does not become entangled in the operating part 5B. Furthermore, regardless of the orientation of the operating part 5B, the connector 7 and the operating line 2 are properly connected.

[0140] Alternatively, if the sheath 1 is made of a conductive material, it can be configured such that the sheath 1 is extended to the position of the connector 7 so that the connector 7 and the sheath 1 come into contact, thereby replacing the operating line 2 and electrically connecting the connector 7 and the sheath 1.

[0141] The second embodiment of the present invention has been described in detail above with reference to the accompanying drawings. However, the specific structure is not limited to this embodiment, and design changes are included without departing from the spirit of the present invention. Furthermore, the constituent elements shown in the above embodiments and variations can be appropriately combined to form a configuration.

[0142] (Third Implementation)

[0143] Reference Figures 17-21 The endoscopic treatment device 100C according to the third embodiment of the present invention will be described. In the following description, the same reference numerals will be used for structures shared with the components already described, and repeated descriptions will be omitted.

[0144] [Endoscopic treatment equipment 100C]

[0145] The endoscopic treatment device 100C (also referred to as treatment device 100C) is a high-frequency knife. The treatment device 100C includes a sheath 1, an operating line 2, a knife 4C, and an operating part 5C.

[0146] Figure 17 This is a diagram representing the operating unit 5C.

[0147] An operating part 5C is located on the base end side A2 of the sheath 1. The operating part 5C includes a handle body 6C, a connector 7C, a slider 8C, and a rotary handle 9C. In this embodiment, the connector 7C is mounted on the handle body 6C.

[0148] Figure 18 This is a cross-sectional view of the handle body 6C.

[0149] The handle body 6C has a cylindrical part 63, a rotating handle support part 65C, and a connector support part 66.

[0150] The rotating handle support 65C is provided on the base end side A2 of the handle body 6C, supporting the rotating handle 9C so that it cannot move forward or backward along the length axis direction A, but can rotate around the length axis.

[0151] The connector support portion 66 supports the connector 7C. The connector support portion 66 has a third through hole 67 through which the connector 7C passes in the vertical direction B, a cylindrical plug protection portion 68 formed on the upper side B1 of the third through hole 67, and a conductive member 69.

[0152] The conductive member 69 is formed into a generally cylindrical shape using a conductive material. The conductive member 69 is a component that electrically and physically connects the operating line 2 and the connector 7C, and is disposed between the operating line 2 and the connector 7C. The conductive member 69 is arranged such that its central axis O is along the length axis direction A. Furthermore, the conductive member 69 is supported in a manner that allows it to rotate about its central axis O.

[0153] The conductive member 69 has a pressing area 69a that directly presses against the tube 22 of the operating line 2. The pressing area 69a is curved, but it can also be flat. The conductive member 69 is formed in a generally cylindrical shape, and the pressing area 69a is shaped to facilitate contact with the operating line 2. Therefore, even if the operating line 2 rotates about its length axis, the connector 7C and the operating line 2 are properly connected.

[0154] Connector 7C can be connected to a high-frequency power supply device (not shown), and is electrically and physically connected to the base end of the operating line 2 via the conductive member 69. Connector 7C can supply high-frequency current from the high-frequency power supply device to the blade 4C via the operating line 2.

[0155] The connector 7C is supported by the connector support 66 of the handle body 6C and is formed into a generally cylindrical shape extending along the extension direction D. The extension direction D is a direction that intersects the length axis direction A, which is the forward and backward direction of the operation line 2, and in this embodiment, it is a direction orthogonal to the length axis direction A. The connector 7C has a connecting part 71C and a power plug 74.

[0156] The connecting portion 71C is formed in a generally cylindrical shape and is provided on the inner side DI of one side in the extending direction D. The connecting portion 71C passes through the third through hole 67 and contacts the conductive member 69 at the end 76 of the inner side DI.

[0157] The power plug 74 is a plug located on the outer side DO on the other side as the extension direction D, for connecting the A wire (active wire).

[0158] The rotary handle 9C is supported by the rotary handle support 65C of the handle body 6C. The rotary handle 9C cannot move forward or backward along the length axis A relative to the handle body 6C, but it can rotate around the length axis.

[0159] The rotary handle 9C has a slit-shaped slider support that supports the slider 8C so that it can move forward and backward along the length axis direction A.

[0160] The slider 8C is mounted in a manner that allows it to move forward and backward along the slider support of the rotating handle 9C. The slider 8C can move forward and backward along the length axis direction A relative to the rotating handle 9C, but cannot rotate about the length axis. The base end of the slider 8C is connected to the operating line 2. The operating line 2 moves forward and backward by the surgeon moving the slider 8C relative to the handle body 6C.

[0161] In the endoscopic treatment device 100C of this embodiment, the connector 7C, which is supplied with high-frequency current, does not rotate, and the A wire (active wire) connected to the connector 7C does not become entangled in the operating part 5C. Furthermore, regardless of the orientation of the operating part 5C, the connector 7C and the operating line 2 are properly connected.

[0162] The third embodiment of the present invention has been described in detail above with reference to the accompanying drawings. However, the specific structure is not limited to this embodiment, and design changes are included without departing from the spirit of the present invention. Furthermore, the constituent elements shown in the above embodiments and variations can be appropriately combined to form a configuration.

[0163] (Modified example)

[0164] In the above embodiments, the conductive member 69 is a cylindrical member, but the shape of the conductive member is not limited to this. Figure 19 This diagram shows a modified example of conductive member 69, namely conductive member 69B. Conductive member 69B is a coil spring made of metal, wound around the outer periphery of operating line 2. Conductive member 69B is elastic, ensuring proper connection between connector 7C and operating line 2 even when connector 7C moves forward or backward along the extension direction D.

[0165] (Modified example)

[0166] In the above embodiments, the conductive member 69 is a cylindrical member, but the shape of the conductive member is not limited to this. Figure 20 This diagram shows a modified example of conductive member 69, namely conductive member 69C. Conductive member 69C is integrally formed with connector 7C and is a recess provided at the end 76 of the inner side DI of connector 7C. Figure 21 It is connector 7C along Figure 20 A Y-Y sectional view. For example... Figure 21 As shown in (A), the conductive member 69C can also be a concave portion with a polygonal cross-section perpendicular to the length axis direction A. For example... Figure 21 As shown in (B), the conductive member 69C can also be an arc-shaped recess with a cross section perpendicular to the length axis direction A along the outer periphery of the operating line 2.

[0167] (Modified example)

[0168] Figure 22 This is a diagram showing a modified example of the operation section 5D of the operation section 5 of the endoscope treatment device 100 as described in the first embodiment. Figure 23 This is the main view of the 5D operating unit. Figure 24 This is the right view of the 5D operating unit. Figure 25 This is the left view of the 5D operating unit. Figure 26 This is a top view of the 5D operating unit. Figure 27 This is a bottom view of the 5D control unit. Figure 28 This is the rear view of the 5D operating unit.

[0169] The operating unit 5D includes a handle body 6D, a connector 7, a slider 8D, and a rotary handle (not shown). In the operating unit 5D, the connector 7 is mounted on the slider 8D. The handle body 6D is generally cylindrical and has a handle 62D at its base. The handle 62D is cylindrical with a tapered portion at its outer periphery. The slider 8D is mounted on the outer periphery of the handle body 6D in a manner that allows it to move forward and backward along its length axis direction A.

Claims

1. An endoscopic treatment device, wherein, The endoscopic handling apparatus includes: jacket; handle body; Wire; A rotating handle that is capable of rotating relative to the handle body about the length axis of the sheath; A sliding member, which is movable along the length axis of the rotary handle; and A conductive connector is mounted on the handle body. The wire is movable relative to the conductive connector in the length axis direction of the sheath. The line is rotatable about the length axis of the sheath. The conductive connector extends in a direction intersecting the direction of movement of the wire. The base end of the line is connected to the slider.

2. The endoscopic treatment device according to claim 1, wherein, The endoscopic treatment device also has an elastomer that supplies current from the conductive connector to the wire.

3. The endoscopic treatment device according to claim 2, wherein, The elastomer is located further away from the rotary handle and makes electrical contact with the conductive connector at a position further away from the rotary handle.

4. The endoscopic treatment device according to claim 2, wherein, The elastomer is disposed between the conductive connector and the wire.

5. The endoscopic treatment device according to claim 2, wherein, The elastomer is a coil spring made of metal.

6. The endoscopic treatment device according to claim 1, wherein, The rotating handle is connected to the base end of the handle body.

7. The endoscopic treatment device according to claim 1, wherein, The front end of the sheath also has a treatment portion that connects to the front end of the line.

8. The endoscopic treatment device according to claim 1, wherein, The conductive connector has a through-path for the wire to pass through.

9. The endoscopic treatment device according to claim 1, wherein, The line includes a tube.

10. The endoscopic treatment device according to claim 9, wherein, The conductive connector is configured to make electrical contact with the tube.

11. An endoscopic treatment device, wherein, The endoscopic handling apparatus includes: jacket; The handle body is mounted on the base end of the sheath; A rotating handle is mounted to the base end of the handle body in a manner that allows it to rotate relative to the handle body; A line runs through the handle body; A slider is mounted on the rotary handle in such a way that it is movable relative to the handle body and the rotary handle along the length axis of the rotary handle, and the slider is connected to the base end of the line; A conductive connector, which is mounted on the handle body, through which the wire passes; and An elastomer, located at a position further away from the rotary handle, makes electrical contact with the conductive connector at a position further away from the rotary handle.

12. The endoscopic treatment device according to claim 11, wherein, The rotating handle cannot move forward or backward relative to the handle body along the length axis of the rotating handle.

13. The endoscopic treatment device according to claim 11, wherein, The slider cannot rotate relative to the rotary handle about the length axis of the rotary handle.

14. The endoscopic treatment device according to claim 11, wherein, The line is configured to be movable relative to the conductive connector along its length axis in accordance with the operation of the slider, and to rotate freely about its length axis in accordance with the operation of the rotary handle.

15. The endoscopic treatment device according to claim 11, wherein, A processing unit is connected to the front end of the line.

16. The endoscopic treatment device according to claim 15, wherein, The processing unit is a pair of pliers configured to rotate relative to the sheath by rotating the wire.

17. The endoscopic treatment device according to claim 11, wherein, The elastic body is a spring.

18. The endoscopic treatment device according to claim 11, wherein, The conductive connector and the elastomer are configured to make electrical contact within the handle body.

19. The endoscopic treatment device according to claim 11, wherein, The line includes a tube.

20. The endoscopic treatment device according to claim 19, wherein, The conductive connector is configured to make electrical contact with the tube.

21. The endoscopic treatment device according to claim 19, wherein, The conductive connector is configured to maintain electrical contact with the tube as the wire rotates.

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