Ultrasonic treatment instrument

Abstract

An ultrasonic treatment instrument is provided. The ultrasonic treatment instrument includes a handle (6), a vibration transmission member (13) formed in an elongated shape for transmitting ultrasonic vibrations generated by a vibration generation source, a holder (112) for holding the vibration transmission member (13), and a knob (9) that rotates about a length axis (Ax1) of the vibration transmission member (13) in accordance with a user's operation. The holder (112) and the knob (9) are integrated with each other and positioned in a radial direction about the length axis (Ax1) with respect to the handle (6), respectively. One of the holder (112) and the knob (9) is positioned in a direction along the length axis (Ax1) with respect to the handle (6).

Description

Technical Field

[0001] This invention relates to an ultrasonic treatment device. Background Technology

[0002] Previously, there was a known ultrasonic treatment device that treated a part of a biological tissue that was to be treated (hereinafter referred to as the object part) by imparting ultrasonic energy to the object part (see, for example, Patent Document 1).

[0003] The ultrasonic treatment device described in Patent Document 1 includes a handle, a vibration transmission component, a retainer, and a knob, as shown below.

[0004] The handle is the part that the surgeon or other operator holds.

[0005] The vibration transmission component is formed in a longitudinal shape to transmit ultrasonic vibrations generated by the vibration source.

[0006] The retainer is used to hold the vibration transmission component.

[0007] The knob rotates about the length axis of the vibration transmission component according to the user's operation. Here, the knob and the retaining member are connected to each other, for example by a pin, in a state of rotation linked to the length axis. That is, the knob rotates the retaining member and the vibration transmission component according to the user's operation.

[0008] Existing technical documents

[0009] Patent documents

[0010] Patent Document 1: International Publication No. 2018 / 011896 Summary of the Invention

[0011] The problem the invention aims to solve

[0012] Furthermore, in the ultrasonic treatment device described in Patent Document 1, the knob and the retainer are not integrated. Therefore, the knob and retainer need to be positioned relative to the handle in the direction along the length axis of the vibration transmission member and radially centered on that length axis, respectively. Moreover, in such a structure, due to the looseness of the knob and retainer relative to the handle, the sliding surfaces between the handle and the knob, and between the handle and the retainer, are prone to change. In other words, the sliding resistance when rotating the knob is prone to change. Consequently, the operating force required to rotate the knob will deviate.

[0013] Therefore, a technology is needed that can stabilize the operating force required to rotate the knob.

[0014] The present invention was made in view of the above circumstances, and its object is to provide an ultrasonic treatment device that can stabilize the operating force when rotating a knob.

[0015] Solution for solving the problem

[0016] To address the aforementioned problems and achieve the objective, the ultrasonic treatment device of the present invention includes: a handle; a vibration transmission member formed in a longitudinal shape for transmitting ultrasonic vibrations generated by a vibration generation source; a retainer for retaining the vibration transmission member; and a knob that rotates about the length axis of the vibration transmission member according to user operation, wherein the retainer and the knob are integrally integrated and respectively positioned radially relative to the handle about the length axis, and one of the retainer and the knob is positioned relative to the handle in a direction along the length axis.

[0017] The effects of the invention

[0018] The ultrasonic treatment apparatus according to the present invention can stabilize the operating force when rotating a knob. Attached Figure Description

[0019] Figure 1 This is a diagram illustrating the processing system of the implementation method.

[0020] Figure 2 It is a diagram illustrating the structure of the treatment equipment.

[0021] Figure 3 It is a diagram illustrating the structure of the treatment equipment.

[0022] Figure 4 It is a diagram illustrating the connection relationship between the knob, retainer, and sliding bearing part.

[0023] Figure 5 It is a diagram illustrating the connection relationship between the knob, retainer, and sliding bearing part.

[0024] Figure 6 It is a diagram illustrating the connection relationship between the knob, retainer, and sliding bearing part.

[0025] Figure 7 This is a diagram illustrating the mounting structure of the knob and retainer relative to the housing body.

[0026] Figure 8 This is a diagram illustrating a variation of the implementation method, Example 1.

[0027] Figure 9 This is a diagram illustrating a variation of the implementation method, Example 1.

[0028] Figure 10 This is a diagram illustrating a variation of the implementation method, Example 1.

[0029] Figure 11 This is a diagram illustrating a variation of the implementation method, Example 1.

[0030] Figure 12 This is a diagram illustrating a variation of the implementation method, Example 1.

[0031] Figure 13 This is a diagram illustrating a variation of the implementation method, Example 1.

[0032] Figure 14 This is a diagram illustrating a variation of the implementation method, Example 1.

[0033] Figure 15 This is a diagram illustrating a variation of the implementation method, Example 1.

[0034] Figure 16 This is a diagram illustrating a variation of the implementation method, example 2.

[0035] Figure 17 This is a diagram illustrating variation 3 of the implementation method.

[0036] Figure 18 This is a diagram illustrating variation 4 of the implementation method.

[0037] Figure 19 This is a diagram illustrating variation 4 of the implementation method.

[0038] Figure 20 This is a diagram illustrating variation 4 of the implementation method.

[0039] Figure 21 This is a diagram illustrating variation 4 of the implementation method.

[0040] Explanation of reference numerals in the attached figures

[0041] 1. Treatment system; 2. 2D ultrasonic treatment device; 3. Control device; 4. Handheld component; 5. Ultrasonic transducer; 6. Fixed handle; 7. Movable handle; 8. Switch; 9. Knob; 10. Shaft; 11. Opening and closing mechanism; 12. 12D clamping component; 13. Vibration transmission component; 51. TD shell; 52. Ultrasonic transducer; 61. Shell body; 62. Handle body; 71. Handle base; 72. Operating part; 73. Connecting part; 91. Connecting surface; 92. Pin; 94. Recessed part; 101. First pin; 102. Notch; 111. Inner tube; 112. Retaining component ; 113. Sliding member bearing part; 114. Sliding member; 115. Helical spring; 121. Second pin; 122. Gasket retainer; 123. Gasket; 131. Handling part; 132. Internal thread part; 200, 200B, 200C. Torque wrench; 210. Arm; 220, 220B, 220C. Head; 221. Slit; 222. First engaging arm; 223. Second engaging arm; 224. Another area; 300, 300A~300C. Knob; 310, 310A~310C. Engaged part; 311. First engaged part; 312. Second 320. Engaging part; 521. Rotating operating part; 611. External thread part; 612. First protrusion part; 613. Second protrusion part; 614. Receiving part; 911. Protrusion part; 912. Press-in hole; 913. Second through hole; 931. First protrusion part; 932. Second protrusion part; 1111. Arm part; 1121. Notch part; 1122. Arc part; 1123. Protrusion part; 1124. First through hole; 1125. Flange part; 1131. Connecting base; 1132. Through hole; 1133. Hole; 1134. Through part; 1221. Recess; 1222. Front End bend; 1223, front end face; 1231, recess; 1232, slit; 1233, locking part; 1234, protrusion; 1311, inclined surface; 2221, first protrusion; 2222, end; 2231, second protrusion; 2232, end; 3111, groove; 3112, inclined surface; 3121, engaging part; Ar1, front end side; Ar2, base end side; Ax1, Ax2, central axis; C, cable; P1, conductive path; RC, cover; Rx1, first rotation axis; Rx2, second rotation axis; TI, inner sleeve; TO, outer tube. Detailed Implementation

[0042] Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below. Furthermore, in the accompanying drawings, the same reference numerals are used to label the same parts.

[0043] [Overall Structure of the Disposal System]

[0044] Figure 1 This is a diagram illustrating the processing system 1 of the implementation method.

[0045] The treatment system 1 treats the target area (hereinafter referred to as the target area) of a biological tissue by applying treatment energy. In this embodiment, the treatment energy is ultrasonic energy and high-frequency energy. Furthermore, treatments that can be performed using the treatment system 1 of this embodiment include coagulation (sealing) of the target area or cutting of the target area. Alternatively, coagulation and cutting can be performed simultaneously. Figure 1 As shown, the treatment system 1 includes an ultrasonic treatment device 2 and a control device 3. Hereinafter, for ease of explanation, the ultrasonic treatment device 2 will be referred to as treatment device 2.

[0046] [Structure of the treatment equipment]

[0047] Furthermore, in the following description of the structure of the treatment device 2, the XYZ coordinate axes (X-axis, Y-axis, and Z-axis) will be used, which are mutually orthogonal. The X-axis is perpendicular to the central axis Ax1 of axis 10. Figure 1 The axis is parallel to the central axis Ax1, which corresponds to the length axis of the invention. The Y-axis is parallel to the axis of length. Figure 1 The axes are orthogonal to the plane of the paper. The Z-axis is along... Figure 1 The axis in the vertical direction. Furthermore, hereafter, one side (+X axis side) along the central axis Ax1 will be referred to as the front end side Ar1, and the other side (-X axis side) will be referred to as the base end side Ar2.

[0048] Figure 2 and Figure 3 This is a diagram illustrating the structure of treatment device 2. Specifically, Figure 2 and Figure 3 It uses the XZ plane sectioning tool 2 containing the central axis Ax1 and from the +Y axis side ( Figure 1 A cross-sectional view observed from the near side of the paper.

[0049] Treatment device 2 is an ultrasonic treatment device that treats a target area by applying ultrasonic energy and high-frequency energy to the target area. For example... Figures 1-3 As shown, the treatment device 2 includes a handheld component 4 and an ultrasonic transducer 5. Figure 1 ).

[0050] like Figures 1-3 As shown, the handheld component 4 includes a fixed handle 6 ( Figure 1 , Figure 3 ), movable handle 7 ( Figure 1 , Figure 3 ), switch 8 ( Figure 1 ), Knob 9 ( Figure 1 , Figure 3 ), shaft 10, opening and closing mechanism 11 ( Figure 2 , Figure 3 ), clamp component 12 ( Figure 1 , Figure 2 ) and vibration transmission component 13.

[0051] The fixed handle 6 corresponds to the handle of this invention. Furthermore, the fixed handle 6 supports the entire treatment device 2. For example... Figure 1 or Figure 3 As shown, the fixed handle 6 includes a generally cylindrical shell body 61 coaxial with the central axis Ax1, and a section extending from the shell body 61 toward the -Z axis side ( Figure 1 The handle body 62 extends from the lower side of the middle and is held by the operator, such as the surgeon.

[0052] The movable handle 7 accepts both closing and opening operations, which are user operations performed by operators such as surgeons. Figure 1 or Figure 3 As shown, the movable handle 7 includes a handle base 71 ( Figure 3 ), Operation section 72 ( Figure 1 ) and connecting part 73 ( Figure 1 ).

[0053] The handle base 71 is located inside the fixed handle 6. Furthermore, the +Z axis portion of the handle base 71 is capable of rotating relative to the fixed handle 6 along a first rotation axis Rx1 parallel to the Y axis. Figure 3 The handle is centered on the fixed handle 6 and rotates around it. In addition, the end of the handle base 71 on the +Z axis side protrudes towards the +Z axis side in a branched state, and functions as an engaging part (not shown) that engages with the sliding member 114 that constitutes the opening and closing mechanism 11.

[0054] The operating section 72 is a part that receives closing and opening operations performed by operators such as surgical personnel, such as... Figure 1 It is located outside the fixed handle 6 as shown.

[0055] The connecting part 73 is disposed between the inner and outer sides of the fixed handle 6 and is the part that connects the handle base 71 and the operating part 72.

[0056] Furthermore, when the movable handle 7 undergoes a closing operation performed by an operator such as a surgeon, it rotates around the first rotation axis Rx1. Figure 3 The operating part 72 rotates counterclockwise. That is, the operating part 72 moves toward the handle body 62. On the other hand, when the movable handle 7 receives an opening operation performed by an operator such as a surgeon, it rotates about the first rotation axis Rx1. Figure 3 The operating part 72 rotates clockwise. That is, the operating part 72 moves away from the handle body 62.

[0057] like Figure 1 or Figure 3 As shown, switch 8 is positioned so that it is exposed to the outside from the side of Ar1 at the front end of handle body 62. Furthermore, switch 8 accepts treatment operations performed by an operator such as a surgeon. This treatment operation is the application of treatment energy to the target area.

[0058] Knob 9 has a roughly cylindrical shape coaxial with the central axis Ax1, such as Figure 3 Ar1 is shown located on the front end side of the housing body 61. Furthermore, the knob 9 is operated by a user, such as a surgeon. According to this rotation operation, the knob 9 rotates relative to the housing body 61 about the central axis Ax1. In addition, according to the rotation of the knob 9, the clamping member 12 and the vibration transmission member 13 rotate about the central axis Ax1.

[0059] Furthermore, the mounting structure of the knob 9 relative to the housing body 61 will be explained in the section on "Mounting Structure of Knob and Retainer Relative to Housing Body" described later.

[0060] Shaft 10 is a cylindrical tube made of conductive materials such as metal, which is equivalent to the cylindrical component of the present invention.

[0061] In addition, a first pin 101 is fixed at the end of the front end Ar1 in the shaft 10. Figure 1 , Figure 2 The first pin 101 along with Figure 1 Extending in a direction orthogonal to the paper, clamping member 12 is able to rotate around the second axis Rx2 ( Figure 2 A shaft support that rotates around a central axis.

[0062] Furthermore, a notch 102 extending from the front end toward the base end side Ar2 is provided on the +Z axis side of the end of the shaft 10 at the front end side Ar1. Figure 2 ).

[0063] The outer circumferential surface of shaft 10 described above is covered by an electrically insulating outer tube TO ( Figure 2 ) Cover.

[0064] The opening and closing mechanism 11 is a mechanism that opens and closes the end 131 (hereinafter referred to as the handling part 131) of the clamp member 12 relative to the front end Ar1 of the vibration transmission member 13 based on the opening and closing operations performed by an operator such as a surgeon on the movable handle 7. This handling part 131 corresponds to the knife of the present invention. Figure 2 or Figure 3 As shown, the opening and closing mechanism 11 includes an inner tube 111 and a retaining member 112. Figure 3 ), sliding support part 113 ( Figure 3 ) and slider 114 ( Figure 3 ).

[0065] The inner tube 111 is a cylindrical tube with a smaller diameter than the shaft 10, and it runs through the interior of the shaft 10 in a coaxial manner.

[0066] like Figure 2 As shown, an arm 1111 protruding toward the front end Ar1 is provided on the +Z axis side of the end of the inner tube 111. A clamping member 12 is provided on the arm 1111, and a second pin 121 extending parallel to the second rotation axis Rx2 (first pin 101) passes through the arm 1111.

[0067] The retainer 112 is made of an electrically insulating material such as resin and has a generally cylindrical shape. Furthermore, the retainer 112 holds the vibration transmission member 13 with the vibration transmission member 13 passing through it internally. Figure 3 As shown, the retainer 112 extends through the knob 9 and the housing body 61.

[0068] Here, the retainer 112 is mounted on the housing body 61 in a state that allows rotation about the central axis Ax1 relative to the housing body 61 and restricts movement about the central axis Ax1 relative to the housing body 61. Furthermore, the end of the front end Ar1 of the retainer 112 is mounted on the knob 9 in a state that restricts rotation about the central axis Ax1 relative to the knob 9 and movement about the central axis Ax1 relative to the knob 9.

[0069] Furthermore, the mounting structure of the retainer 112 relative to the housing body 61 will be explained in the section on "Mounting Structure of Knob and Retainer Relative to Housing Body" described later. Additionally, the connection relationship between the knob 9 and the retainer 112 will be explained in the section on "Connection Relationship of Knob, Retainer and Sliding Member Support" described later.

[0070] In addition, such as Figure 3 As shown, the end of the base side Ar2 of the shaft 10 is fixed relative to the retainer 112 in a state that extends through the interior of the end of the front side Ar1 of the retainer 112.

[0071] Furthermore, the retainer 112, shaft 10, clamping member 12, and vibration transmission member 13 rotate together with the knob 9 around the central axis Ax1 according to the rotation operation performed by the operator such as the surgeon on the knob 9.

[0072] The sliding member receiving portion 113 corresponds to the rotating member of the present invention. The sliding member receiving portion 113 is made of an electrically insulating material such as resin and has a generally cylindrical shape. Moreover, the sliding member receiving portion 113 is arranged such that a retaining member 112 passes through it internally, so that it can move relative to the retaining member 112 along the central axis Ax1.

[0073] Here, the end of the front end Ar1 of the sliding member bearing portion 113 is connected to the retainer 112 in a state in which it is allowed to move relative to the retainer 112 along the central axis Ax1 and is restricted from rotating relative to the retainer 112 about the central axis Ax1.

[0074] Furthermore, the connection relationship between the retainer 112 and the slider bearing part 113 will be explained in the section on "Connection Relationship of Knob, Holder and Slider Bearing Part" described later.

[0075] Furthermore, the end of the front end Ar1 of the slider bearing portion 113 is connected to the knob 9 in a state in which it is allowed to move relative to the knob 9 along the central axis Ax1 and is restricted from rotating relative to the knob 9 about the central axis Ax1.

[0076] Furthermore, the connection relationship between the knob 9 and the sliding support part 113 will be explained in the section on "Connection Relationship of Knob, Holder and Slider Support Part" described later.

[0077] In addition, such as Figure 3 As shown, the end of Ar2 on the base side of the inner tube 111 passes through the interior of the retainer 112 and is fixed relative to the end of Ar1 on the front side of the sliding member bearing part 113.

[0078] Furthermore, the sliding support part 113 and the inner tube 111 rotate together with the knob 9 around the central axis Ax1 according to the rotation operation performed by the operator such as the surgeon on the knob 9.

[0079] The slider 114 has a generally cylindrical shape and is arranged such that a slider support portion 113 passes through it internally, allowing it to move relative to the slider support portion 113 along the central axis Ax1. Moreover, as described above, the slider 114 engages with the engaging portion (not shown) of the movable handle 7.

[0080] Furthermore, the opening and closing mechanism 11 operates as shown below, depending on the operation performed by the operator such as the surgeon on the movable handle 7.

[0081] The slider 114 is pushed along the central axis Ax1 toward the front end Ar1 by the engaging portion (not shown) of the movable handle 7 according to the closing operation performed by the operator such as the surgeon on the movable handle 7. Furthermore, the slider receiving portion 113 is connected to the slider 114 by a helical spring 115 (… Figure 3 The sliding member 114 receives pressing pressure towards the front end Ar1. Furthermore, the inner tube 111 and the sliding member receiving part 113 move along the central axis Ax1 towards the front end Ar1 in conjunction. Additionally, the arm 1111 pushes the second pin 121 towards the front end Ar1. Moreover, the clamping member 12 moves towards the front end Ar1 with the second rotation axis Rx2 as its center. Figure 2 The clamp rotates counterclockwise. At this time, since the second pin 121 also moves at a constant distance around the second rotation axis Rx2, the arm 1111 moves towards the front end Ar1 while deforming towards the +Z axis side where the notch 102 is provided. That is, the clamp member 12 moves towards the direction of approaching the disposal part 131 (the closing direction).

[0082] Furthermore, the clamp component 12 rotates about the second rotation axis Rx2 based on the opening operation performed by the operator such as the surgeon on the movable handle 7. Figure 2 The clamping member 12 rotates clockwise. That is, the clamping member 12 moves away from the handling section 131 (the opening direction).

[0083] As described above, the clamping member 12 opens and closes relative to the treatment section 131 according to the operation of the movable handle 7 by the operator such as the surgeon, and holds the object part between the clamping member 12 and the treatment section 131.

[0084] Here, the helical spring 115 is used to keep the gripping force of the object gripping part between the clamp member 12 and the handling part 131 constant.

[0085] At least a portion of the clamp component 12 is made of a conductive material.

[0086] The vibration transmission component 13 is made of a conductive material and has an elongated shape extending linearly along the central axis Ax1. Furthermore, as... Figure 2 As shown, the vibration transmission member 13 extends through the interior of the inner tube 111 with the disposal part 131 protruding to the outside. At this time, as... Figure 1As shown, the end of the base end Ar2 of the vibration transmission member 13 is mechanically connected to the ultrasonic transducer 52 constituting the ultrasonic transducer 5. Specifically, the vibration transmission member 13 and the ultrasonic transducer 52 are connected to each other by threading an external thread 521 provided at the end of the front end Ar1 of the ultrasonic transducer 52 with an internal thread 132 provided at the end of the base end Ar2 of the vibration transmission member 13. Here, the external thread 521 corresponds to the first thread of the present invention. In addition, the internal thread 132 corresponds to the second thread of the present invention. In addition, the internal thread 132 is provided in the vibration transmission member 13 and the external thread 521 is provided in the ultrasonic transducer 52, but it is not limited to this. It is also possible to provide an external thread in the vibration transmission member 13 and an internal thread in the ultrasonic transducer 52.

[0087] Furthermore, the vibration transmission member 13 transmits the ultrasonic vibration generated by the ultrasonic transducer 5 from the end of the base side Ar2 to the processing unit 131. In this embodiment 1, the ultrasonic vibration is a longitudinal vibration that occurs along the central axis Ax1.

[0088] In addition, the outer peripheral surface of the vibration transmission component 13 is covered by an electrically insulating inner sleeve TI ( Figure 2 The shaft 10 and inner tube 111 are covered to ensure electrical insulation between the shaft 10 and the vibration transmission member 13.

[0089] The ultrasonic transducer 5 is equivalent to the vibration generation source of this invention. For example... Figure 1 As shown, the ultrasonic transducer 5 includes a TD (transducer) housing 51 and an ultrasonic transducer 52.

[0090] The TD housing 51 supports the ultrasonic transducer 52 and is connected to the housing body 61 in a manner that allows it to be attached to or detached from the housing body 61.

[0091] The ultrasonic transducer 52 generates ultrasonic vibrations under the control of the control device 3. In this embodiment 1, the ultrasonic transducer 52 is composed of a BLT (bolt-fastened LANZI-type transducer).

[0092] [Structure of the control device]

[0093] Control device 3 via cable C ( Figure 1 This is used to control the overall operation of the treatment device 2.

[0094] Specifically, the control device 3 detects the handling operation performed on the switch 8 by an operator such as a surgeon via cable C. Furthermore, upon detecting this handling operation, the control device 3 applies handling energy to the object portion held between the clamp member 12 and the handling section 131 via cable C. That is, the control device 3 handles the object portion.

[0095] For example, when applying ultrasonic energy to a target area, the control device 3 supplies drive power to the ultrasonic transducer 52 via cable C. As a result, the ultrasonic transducer 52 generates longitudinal vibration (ultrasonic vibration) that vibrates in the direction along the central axis Ax1. Furthermore, the processing unit 131 vibrates with a desired amplitude based on this longitudinal vibration. Thus, ultrasonic vibration is applied from the processing unit 131 to the target area held between the clamping member 12 and the processing unit 131. In other words, ultrasonic energy is applied to the target area from the processing unit 131.

[0096] Furthermore, for example, when applying high-frequency energy to the target area, the control device 3 supplies high-frequency power between the clamping member 12 and the vibration transmission member 13 via the cable C.

[0097] Specifically, cable C is electrically connected to vibration transmission member 13 via a first electrical path (not shown) provided inside the fixed handle 6. Furthermore, cable C is connected to conductive path P1 (see reference 13) via a second electrical path (not shown) provided inside the fixed handle 6. Figure 4 Electrical connection. The conductive path P1 is made of a conductive material and extends from the end of the base side Ar2 to the end of the front side Ar1 on the outer peripheral surface of the retainer 112. Furthermore, the end of the conductive path P1 at the base side Ar2 is electrically connected to the second electrical path described above. On the other hand, the end of the conductive path P1 at the front side Ar1 is electrically connected to the end of the shaft 10 at the base side Ar2. That is, the second electrical path described above (not shown) is electrically connected to the clamp member 12 via the conductive path P1 and the shaft 10.

[0098] Therefore, when high-frequency power is supplied between the clamping member 12 and the vibration transmission member 13, high-frequency current is supplied to the object portion held between the clamping member 12 and the handling unit 131. In other words, high-frequency energy is applied to the object portion.

[0099] [Regarding the connection relationship between the knob, retainer, and sliding support]

[0100] Next, the connection relationship between the knob 9 and the retainer 112, the connection relationship between the retainer 112 and the sliding support part 113, and the connection relationship between the knob 9 and the sliding support part 113 will be explained in sequence.

[0101] Figures 4-6 This diagram illustrates the connection relationship between the knob 9, the retaining member 112, and the sliding member receiving part 113. Specifically, Figure 4 Is with Figure 3 The corresponding sectional view. Additionally, relative to... Figure 3 In the state shown, Figure 4 The knob 9, shaft 10, and opening / closing mechanism 11 have rotated by a predetermined angle around the central axis Ax1. Figure 5 It is the treatment device 2 Figure 4 A cross-sectional view showing the location of the VV line. Figure 6 It is the treatment device 2 Figure 4 A cross-sectional view showing the location of line VI-VI.

[0102] First, the connection relationship between knob 9 and retainer 112 will be explained.

[0103] like Figure 5 As shown, a pair of notches 1121 are provided at the end of the front end side Ar1 of the retainer 112.

[0104] The pair of notches 1121 are cut from the front end of the retainer 112 toward the base end Ar2, and are opposite to each other across the central axis Ax1. Hereinafter, for ease of explanation, the pair of arc-shaped portions remaining at the end of the front end Ar1 of the generally cylindrical retainer 112, which are the portions left due to the notches 1121, will be referred to as arc-shaped portions 1122. Figure 4 , Figure 5 ).

[0105] In addition, such as Figure 5 As shown, two protruding strips 1123 are provided on the outer peripheral surface of the arc portion 1122, extending in a straight line from the front end side Ar1 toward the base end side Ar2.

[0106] like Figure 4 or Figure 5 As shown, the inner circumferential surface of the generally cylindrical knob 9 is provided with a connecting surface 91 for connecting with the retainer 112.

[0107] The connecting surface 91 has a cross-sectional circular shape with an inner diameter that is approximately the same as the outer diameter of the end of the front end side Ar1 of the retainer 112, and extends in a straight line along the central axis Ax1.

[0108] like Figure 5 As shown, a pair of protrusions 911 are provided on the connecting surface 91. These protrusions 911 protrude from opposite positions across the central axis Ax1 and extend linearly along the central axis Ax1. The width dimension of this pair of protrusions 911 (…) Figure 5 The vertical length dimension is set to be the same as the width dimension of the notch 1121. Figure 5 The length dimensions in the vertical direction are approximately the same. Hereinafter, for ease of explanation, the pair of arc-shaped spaces surrounded by the connecting surface 91 and a pair of protrusions 911 will be referred to as press-in holes 912.

[0109] Therefore, the retainer 112 is connected to the knob 9 by pressing a pair of arcuate portions 1122 into a pair of press-in holes 912. At this time, the protrusion 1123 engages with the connecting surface 91. Thus, the knob 9 and the retainer 112 are integrated into one unit. That is, the knob 9 and the retainer 112 do not wobble relative to each other and are restricted from relative rotation about the central axis Ax1 and relative movement along the central axis Ax1.

[0110] In addition, in this embodiment, the knob 9 and the retainer 112 are joined together by pressing, but it is not limited to this. As long as they can be joined together, they can also be joined by bonding, threading, etc.

[0111] In addition, such as Figure 3 As shown, a first through hole 1124 is provided in a pair of arc portions 1122 in a direction orthogonal to the central axis Ax1. In addition, a second through hole 913 is provided in the knob 9 at a position opposite to the first through hole 1124 in a direction orthogonal to the central axis Ax1.

[0112] Moreover, such as Figure 3 As shown, a pin 92 passes through the first through hole 1124 and the second through hole 913. The pin 92 has the function of maintaining the relative positional relationship between the knob 9 and the retainer 112 along the central axis Ax1.

[0113] Next, the connection relationship between the retaining member 112 and the sliding member bearing part 113 will be explained.

[0114] like Figure 4 or Figure 6 As shown, a connecting base 1131 is provided at the end of the front end side Ar1 of the sliding member bearing part 113.

[0115] The connecting base 1131 has a flat plate shape, the plate surface is orthogonal to the central axis Ax1, and is mounted between the inner peripheral surfaces of the sliding member bearing portion 113 in an attitude spanning the central axis Ax1. Figure 6 Furthermore, the end of the inner tube 111, Ar2, is fixed to the plate surface side of the front end side Ar1 of the connecting base 1131.

[0116] like Figure 6 As shown, a circular through hole 1132 is provided in the connecting base 1131 at a position on the central axis Ax1. The through hole 1132 penetrates the back of the surface and is centered on the central axis Ax1. The through hole 1132 is a hole through which the vibration transmission component 13 passes.

[0117] In addition, such as Figure 6As shown, a pair of arc-shaped holes 1133 provided between the inner circumferential surface of the sliding member bearing portion 113 and the connecting base 1131 function as holes through which a pair of arc portions 1122 pass respectively.

[0118] That is, through a pair of arcuate portions 1122 respectively passing through a pair of holes 1133, the end of the front end side Ar1 of the sliding member bearing portion 113 is connected to the retainer 112 in a state that allows movement relative to the retainer 112 along the central axis Ax1 and restricts rotation relative to the retainer 112 about the central axis Ax1.

[0119] Next, the connection relationship between the knob 9 and the sliding support part 113 will be explained.

[0120] like Figure 6 As shown, a pair of first protrusions 931 and a pair of second protrusions 932 are provided on the inner circumferential surface of the knob 9, at the base end side of the connecting surface 91 which serves as the joint position of the knob 9 and the retainer 112.

[0121] A pair of first protrusions 931 are spaced at a predetermined interval. Figure 6 The top and bottom side-by-side settings in the middle.

[0122] A pair of second protrusions 932 have a central axis Ax1 and along Figure 6 The plane extending vertically is a symmetrical shape to a pair of first protrusions 931.

[0123] like Figure 6 As shown, a pair of through portions 1134 are provided on the outer peripheral surface of the end of the front end Ar1 in the sliding member receiving portion 113. These two through portions 1134 are opposite to each other across the central axis Ax1 and protrude from the outer peripheral surface. Furthermore, one of the through portions 1134 passes between a pair of first protrusions 931. The other through portion 1134 passes between a pair of second protrusions 932. Here, the width dimension of the through portion 1134 is (…). Figure 6 The vertical length dimension is set to be approximately the same as the separation dimension between the pair of first protrusions 931.

[0124] That is, by passing through a pair of through portions 1134 between a pair of first protrusions 931 and a pair of second protrusions 932 respectively, the end of the front end side Ar1 of the sliding member receiving portion 113 is connected to the knob 9 in a state that allows movement relative to the knob 9 along the central axis Ax1 and restricts rotation relative to the knob 9 about the central axis Ax1.

[0125] Based on the above connection relationship, the sliding bearing part 113, located at the base end Ar2 of the joint position (connecting surface 91) of the knob 9 and the retainer 112, will transmit the force generated by the rotation of the knob 9 to the retainer 112.

[0126] [Regarding the mounting structure of the knob and retainer relative to the housing body]

[0127] Next, the mounting structure of the knob 9 relative to the housing body 61 and the mounting structure of the retainer 112 relative to the housing body 61 will be described in sequence.

[0128] Figure 7 This diagram illustrates the mounting configuration of the knob 9 and the retainer 112 relative to the housing body 61. Specifically, Figure 7 Is with Figure 3 The corresponding sectional view.

[0129] First, the installation structure of knob 9 on the housing body 61 will be explained.

[0130] like Figure 3 As shown, a circular recessed strip 94 is provided on the outer peripheral surface of the end of the knob 9 at the base side Ar2. The recessed strip 94 is recessed toward the central axis Ax1 and extends circumferentially around the central axis Ax1.

[0131] like Figure 3 or Figure 7 As shown, a first annular protrusion 611 is provided on the inner surface of the shell body 61. The first protrusion 611 protrudes toward the central axis Ax1 and extends circumferentially around the central axis Ax1.

[0132] Therefore, the knob 9 is mounted on the housing body 61 by placing the first protruding part 611 inside the recessed part 94. At this time, the knob 9 is positioned relative to the housing body 61 in the radial direction centered on the central axis Ax1 by abutting the protruding end of the first protruding part 611 against the bottom surface of the recessed part 94. In addition, the side of the first protruding part 611 does not abut against the side of the recessed part 94. That is, the first protruding part 611 and the recessed part 94 do not have the function of positioning the knob 9 relative to the housing body 61 in the direction along the central axis Ax1.

[0133] Next, the mounting structure of the retainer 112 relative to the housing body 61 will be described.

[0134] like Figure 3As shown, a circular flange portion 1125 is provided on the outer peripheral surface of the end of the retainer 112 at the base end side Ar2. The flange portion 1125 protrudes from the outer peripheral surface and extends circumferentially around the central axis Ax1. The flange portion 1125 is located near the base end side Ar2 of the base end of the knob 9 and the base end of the slider receiving portion 113.

[0135] like Figure 3 or Figure 7 As shown, a second annular protrusion 612 is provided on the inner surface of the shell body 61 at a position Ar2 closer to the base end of the first protrusion 611. The second protrusion 612 protrudes toward the central axis Ax1 and extends circumferentially around the central axis Ax1. In addition, an annular receiving portion 613 is provided on the inner circumferential surface of the second protrusion 612. The receiving portion 613 is recessed in a direction away from the central axis Ax1 and extends circumferentially around the central axis Ax1.

[0136] Therefore, the retainer 112 is mounted to the housing body 61 by means of the flange portion 1125 disposed inside the housing portion 613. At this time, since the flange portion 1125 is clamped by the side of the housing portion 613, the retainer 112 is positioned relative to the housing body 61 in the direction along the central axis Ax1. Furthermore, by abutting the protruding end of the second protrusion portion 612 against the portion of the outer peripheral surface of the retainer 112 that is closer to the base end of the flange portion 1125, the retainer 112 is positioned relative to the housing body 61 in the radial direction centered on the central axis Ax1.

[0137] According to the above-described implementation method, the following effects are achieved.

[0138] In the handling device 2 of this embodiment, the knob 9 and the retainer 112 are integrated as a single unit. Therefore, it is unnecessary to position the knob 9 and the retainer 112 separately relative to the housing body 61 in the direction along the central axis Ax1, radially centered on the central axis Ax1. In this embodiment, the retainer 112 is positioned relative to the housing body 61 in the direction along the central axis Ax1. Furthermore, both the knob 9 and the retainer 112 are positioned radially relative to the housing body 61 centered on the central axis Ax1. That is, a structure is designed to reduce looseness of the knob 9 and the retainer 112 relative to the housing body 61, and to prevent changes in the sliding surfaces between the housing body 61 and the knob 9, and between the housing body 61 and the retainer 112. In other words, a structure is designed to prevent changes in the sliding resistance when the knob 9 is rotated.

[0139] Therefore, the processing device 2 according to this embodiment can stabilize the operating force when rotating the knob 9.

[0140] In particular, both the knob 9 and the retainer 112 are positioned radially relative to the housing body 61 with respect to the central axis Ax1. Therefore, the knob 9 and the retainer 112 are not cantilevered on the housing body 61, allowing the knob 9 to rotate in a stable state.

[0141] Furthermore, in the treatment device 2 of this embodiment, a pin 92 is provided to maintain the relative positional relationship between the knob 9 and the retaining member 112 along the central axis Ax1. Therefore, the pin 92 can be used to prevent the offset of the relative positional relationship between the knob 9 and the retaining member 112 along the central axis Ax1 caused by changes over time.

[0142] Furthermore, in the handling device 2 of this embodiment, the sliding member receiving portion 113 abuts against the retaining member 112 at a position Ar2 closer to the base end of the joint position (connecting surface 91) between the knob 9 and the retaining member 112, transmitting the force generated by the rotation of the knob 9 to the retaining member 112. That is, when transmitting the force generated by the rotation of the knob 9 to the retaining member 112, the force is not concentrated only at the joint position (connecting surface 91), but can be distributed along the path from the knob 9 to the sliding member receiving portion 113 to the retaining member 112. Therefore, the connection strength between the knob 9 and the retaining member 112 at the joint position can be well maintained.

[0143] Furthermore, the treatment device 2 of this embodiment can impart not only ultrasonic energy but also high-frequency energy to the target area. Moreover, a conductive path P1 is provided in the electrically insulating retaining member 112, which is electrically connected to the clamping member 12 via the shaft 10, allowing high-frequency current to flow. Therefore, the retaining member 112 can be used to prevent short circuits between the vibration transmission member 13 and the conductive path P1.

[0144] (Other implementation methods)

[0145] This concludes the description of methods for implementing the present invention, but the present invention should not be limited to the embodiments described above.

[0146] In the above embodiments, the ultrasonic treatment apparatus of the present invention is configured to impart both ultrasonic energy and high-frequency energy to the target area, but it is not limited to this and may also be configured to impart only ultrasonic energy. Furthermore, it may be configured to impart at least one type of energy, in addition to ultrasonic energy, to the target area, namely high-frequency energy and thermal energy. Here, "imparting thermal energy to the target area" means conducting heat generated by a heater or the like to the target area.

[0147] In the above embodiment, the retainer 112 of the knob 9 and the retainer 112 is positioned relative to the housing body 61 in the direction along the central axis Ax1, but it is not limited thereto. For example, the knob 9 of the knob 9 and the retainer 112 may also be positioned relative to the housing body 61 in the direction along the central axis Ax1.

[0148] (Variation Example 1)

[0149] In the above embodiments, the structure of the modified example 1 shown below can also be adopted.

[0150] Figures 8-15 This is a diagram illustrating a variation of embodiment 1. Specifically, Figure 8 This is a 3D diagram representing a torque wrench 200.

[0151] Furthermore, for ease of explanation, the conventional knob will be referred to as knob 300 below. In addition, the knob of this modified example 1 will be referred to as knob 300A.

[0152] Figures 9-13 This is a diagram illustrating the previous knob 300. Specifically, Figure 9 This is a 3D view of knob 300. Figure 10 This is a diagram showing only the engaging part 310 that constitutes the knob 300, viewed from the +Y axis side. Figure 11 This is a cross-sectional view taken from the front side Ar1, showing the engagement state of the torque wrench 200, which passes through the first engaged portion 311, with the engaged portion 310. Figure 12 This is a cross-sectional view taken from the front side Ar1, showing the engagement state of the torque wrench 200, which is cut through the plane of the second engaging part 312, with the engaging part 310. Figure 13 Is with Figure 11 The corresponding sectional view is a diagram illustrating the problems with the previous knob 300.

[0153] on the other hand, Figure 14 and Figure 15 This is a diagram illustrating the knob 300A of this modified example 1. Hereinafter, for ease of explanation, the engaging portion constituting the knob 300A of this modified example 1 will be referred to as the engaging portion 310A. Specifically, Figure 14 Is with Figure 10 The corresponding diagram. Figure 15 Is with Figure 13 The corresponding sectional view is a diagram illustrating the effect of the knob 300A in this modified example 1.

[0154] Previously, the threaded connection between the external threaded portion 521 and the internal threaded portion 132, i.e., the connection between the vibration transmission member 13 and the ultrasonic transducer 52, was used. Figure 8 The torque wrench 200 is shown.

[0155] like Figure 8 As shown, the torque wrench 200 is integrally formed from a linear arm 210, which serves as the operating part, and a torque transmission head 220 located at one end of the arm 210, using, for example, a resin material. However, the torque wrench 200 is not limited to resin material and may also be made of metal or the like.

[0156] The head 220 has a cylindrical shape that covers the entire outer peripheral surface of the engaging portion 310 constituting the knob 300. Hereinafter, for ease of explanation, the central axis of the head 220 will be referred to as the central axis Ax2. Figure 8 Furthermore, a slit 221 extending along the centerline of the arm 210 is provided in the head 220. This slit 221 is formed by cutting a portion of the side wall of the cylindrical head 220. That is, by cutting a portion of the cylinder with the slit 221, the head 220 has a letter C shape with a pair of arc-shaped cross-sections. For ease of explanation, these pair of arc-shaped cross-sections will be referred to below as the first engaging arm 222 and the second engaging arm 223.

[0157] like Figure 8 As shown, a first protrusion 2221 protruding from the inner circumferential surface toward the central axis Ax2 is provided on the inner circumferential surface of the first engaging arm 222. When the head 220 is divided into two regions by a plane orthogonal to the central axis Ax2, the first protrusion 2221 is provided in only one region. Figure 8 (The area on the left side of the image).

[0158] In addition, such as Figure 8 As shown, a second protrusion 2231 is provided on the inner circumferential surface of the second engaging arm 223, at a position opposite to the first protrusion 2221 across the central axis Ax2, protruding from the inner circumferential surface toward the central axis Ax2. Similar to the first protrusion 2221, when the head 220 is divided into two regions by a plane orthogonal to the central axis Ax2, the second protrusion 2231 is also provided only in the region where the first protrusion 2221 is located. Figure 8 (The area on the left side of the image).

[0159] The first protrusion 2221 and the second protrusion 2231 mentioned above correspond to the claw portion of the present invention.

[0160] like Figures 9-12 As shown, the knob 300 includes a locking part 310 and a rotating operation part 320 that receives rotational operations performed by an operator such as a surgical operator. Figure 9 ).

[0161] The engaging part 310 is located on the front side Ar1 of the knob 300. Figure 9This component, which engages with the torque wrench 200, is used to connect the vibration transmission component 13 and the ultrasonic transducer 52. (Example) Figures 9-12 As shown, the engaging portion 310 includes a first engaging portion 311 ( Figures 9-11 ) and the second locked part 312 ( Figure 9 , Figure 10 , Figure 12 ).

[0162] The first engaging portion 311 is the portion of the engaging portion 310 located at the front end Ar1. Figure 9 , Figure 10 The first engaging portion 311 is the part that does not engage with the torque wrench 200 when the vibration transmission member 13 and the ultrasonic transducer 52 are connected to each other. This first engaging portion 311 is located on the central axis Ax1 and has a cylindrical shape extending linearly along the central axis Ax1. Here, the outer diameter of the first engaging portion 311 is set to be slightly smaller than the inner diameter of the head 220.

[0163] like Figures 9-11 As shown, a groove 3111 is provided on the outer peripheral surface of the first engaging portion 311. The groove 3111 is recessed from the outer peripheral surface and extends from the front end of the first engaging portion 311 to the base end. In conventional knobs 300, the grooves 3111 are respectively provided on the outer peripheral surface of the first engaging portion 311 at rotationally symmetrical positions about the central axis Ax1. That is, four grooves 3111 are provided. Furthermore, as... Figure 11 As shown, the groove 3111 has a rectangular cross-section. Here, the outer radius of the bottom surface of the groove 3111 is set to be slightly smaller than the separation dimension between the protruding end of the first protrusion 2221 (the second protrusion 2231) and the central axis Ax2.

[0164] The second engaging part 312 is located between the first engaging part 311 and the rotating operating part 320. Figure 9 , Figure 10 This is the part that engages with the torque wrench 200 when the vibration transmission component 13 and the ultrasonic transducer 52 are connected to each other. For example... Figure 12 As shown, the second engaged portion 312 is provided with an engaging portion 3121.

[0165] Specifically, regarding the outer peripheral surface of the second engaging portion 312, starting from the portion where the bottom surface of the groove portion 3111 extends in a straight line along the central axis Ax1 toward the base end Ar2, along... Figure 12In a clockwise direction centered on the central axis Ax1, the outer diameter of the outer peripheral surface of the second engaging portion 312 gradually increases. Furthermore, this outer peripheral surface becomes a shape that sharply decreases in size at the engaging portion 3121, to the same outer diameter as the bottom surface of the groove portion 3111. That is, the engaging portions 3121 have the same number as the groove portions 3111.

[0166] Furthermore, when connecting the vibration transmission component 13 and the ultrasonic transducer 52 to each other, the operator performing the connection operates the torque wrench 200 as shown below.

[0167] Specifically, while positioning the torque wrench 200 with one area facing the base end Ar2 relative to the other area, the operator places the first protrusion 2221 and the second protrusion 2231 against the groove 3111. Furthermore, the operator positions the first protrusion 2221 and the second protrusion 2231 through the groove 3111. Figure 11 In the state shown, move the torque wrench 200 toward the base end Ar2.

[0168] Afterwards, the operator moved the torque wrench 200 around the central axes Ax1 and Ax2. Figure 12 The torque wrench 200 rotates clockwise. When the torque wrench 200 is rotated, the first protrusion 2221 and the second protrusion 2231 slide on the outer peripheral surface of the second engaged portion 312, thus causing the first engaged arm 222 and the second engaged arm 223 to elastically deform in a direction away from the central axes Ax1 and Ax2. Furthermore, the knob 300 rotates along with the torque wrench 200. Additionally, when the first protrusion 2221 and the second protrusion 2231 pass over the engaged portion 3121, the first engaged arm 222 and the second engaged arm 223 return to their original shape.

[0169] According to the above operation, the knob 300 (vibration transmission member 13) is rotated, and the internal thread 132 and the external thread 521 are threaded together using the desired torque. Thus, the vibration transmission member 13 and the ultrasonic transducer 52 are connected to each other.

[0170] In addition, the central axes Ax1 and Ax2 are equivalent to the rotational central axes of the present invention.

[0171] The conventional knob 300 described above has the following problems.

[0172] Here, the circumferential ends 2222 and 2232 of the first engaging arm 222 and the second engaging arm 223 centered on the central axis Ax2 are... Figure 13 The end of the torque wrench 200 that protrudes along the rotation direction of the torque wrench 200 due to the operation of the operator is end 2222.

[0173] Moreover, for example, regarding the operations of some workers, sometimes... Figure 13 As shown in (a), the central axis Ax2 is offset relative to the central axis Ax1, and end 2222 enters the groove 3111. When this operation continues under these conditions, as... Figure 13 As shown in (b), the central axis Ax2 will be further offset relative to the central axis Ax1, and the internal thread 132 cannot be threaded into the external thread 521 using the desired torque. That is, the vibration transmission member 13 and the ultrasonic transducer 52 cannot be properly connected to each other.

[0174] Therefore, in the knob 300A of this modified example 1, in order to solve the above-mentioned problem, as follows: Figure 14 As shown, all grooves 3111 are provided with inclined surfaces 3112.

[0175] Specifically, the inclined surface 3112 is provided on the side of the groove 3111, along the rotation direction of the knob 300A that accompanies the rotation direction of the torque wrench 200. Figure 15 (in the clockwise direction) and an inclined surface whose diameter gradually increases with respect to the central axis Ax1.

[0176] According to the above description of this modified example 1, the following effects are achieved.

[0177] In this modified example 1, the knob 300A is similar to the conventional knob 300, for example, for the operation of some operators, sometimes as Figure 15 As shown in (a), the central axis Ax2 is offset relative to the central axis Ax1, and the end portion 2222 enters the groove 3111. However, in the knob 300A of this modified example 1, when this operation continues in this case, as... Figure 15 As shown in (b), end portion 2222 is guided along inclined surface 3112 to outer peripheral surface of first engaging portion 311, with central axes Ax1 and Ax2 aligned with each other. That is, in this case, the internal thread portion 132 can be threaded into the external thread portion 521 using the desired torque, and the vibration transmission member 13 and ultrasonic transducer 52 can be properly connected to each other.

[0178] (Variation Example 2)

[0179] In the above embodiments, the structure of Modified Example 2 shown below can also be adopted.

[0180] Furthermore, for ease of explanation, the knob and the engaging part of this modified example 2 will be referred to as knob 300B and engaging part 310B, respectively. Additionally, the torque wrench and the head of this modified example 2 will be referred to as torque wrench 200B and head 220B, respectively.

[0181] Figure 16 This is a diagram illustrating a variation of the implementation method, example 2. Specifically, Figure 16 This is a cross-sectional view obtained by cutting along the plane of the central axis Ax1 with the torque wrench 200B engaged with the knob 300B.

[0182] In this modified example 2, the shape of the first engaging part 311 is changed compared to the knob 300A described in the modified example 1 above.

[0183] Specifically, in the first engaging part 311 of this modified example 2, as Figure 16 As shown, the outer diameter is set to be smaller than the separation dimension between the protruding end of the first protrusion 2221 (the second protrusion 2231) and the central axis Ax2. That is, the groove 3111 described in the above-described modified example 1 is omitted in the first engaging portion 311.

[0184] Furthermore, in the torque wrench 200B of this modified example 2, the inner circumferential surface of the head 220B has the shape shown below.

[0185] When the head 220B is divided into two regions by a plane orthogonal to the central axis Ax2, as follows: Figure 16 As shown, the inner diameter of the inner circumferential surface of another region 224, excluding the region with the first protrusion 2221 and the second protrusion 2231, is set to be slightly larger than the outer diameter of the first engaging portion 311.

[0186] Even when using the knob 300B of this modified example 2 described above, there will be no situation where the end 2222 enters the groove 3111, and when operating the torque wrench 200B, the offset of the central axes Ax1 and Ax2 can be suppressed by another area 224. Therefore, it achieves the same effect as the modified example 1 described above.

[0187] (Variation Example 3)

[0188] In the above embodiments, the structure of Modified Example 3 shown below can also be adopted.

[0189] Furthermore, for ease of explanation, the knob and the engaging part of this modified example 3 will be referred to as knob 300C and engaging part 310C, respectively. In addition, the torque wrench and the head of this modified example 3 will be referred to as torque wrench 200C and head 220C, respectively.

[0190] Figure 17 This is a diagram illustrating a variation of the implementation method, example 3. Specifically, Figure 17 This is a cross-sectional view obtained by cutting along the plane of the central axis Ax1 with the torque wrench 200C engaged with the knob 300B.

[0191] In the knob 300C of this Modification 3, the positions of the first engaging portion 311 and the second engaging portion 312 are reversed compared to the knob 300A described in Modification 1 above. That is, as Figure 17 As shown, the first engaging portion 311 is located at a position closer to the base end Ar2 than the second engaging portion 312.

[0192] Furthermore, in this modified example 3, the groove 3111 described in the modified example 1 is omitted from the first engaging portion 311. That is, the outer diameter of the first engaging portion 311 is greater than or equal to the outer diameter of the second engaging portion 312.

[0193] Furthermore, in the torque wrench 200C of this modified example 3, the inner circumferential surface of the head 220C has the shape shown below.

[0194] When the head 220C is divided into two regions by a plane orthogonal to the central axis Ax2, such as Figure 17 As shown, a region with a first protrusion 2221 and a second protrusion 2231 is located at a position closer to the front end Ar1 than the other region 224. Furthermore, the inner diameter of the inner circumferential surface of the other region 224 is set to be slightly larger than the outer diameter of the first engaging portion 311.

[0195] Even when using the knob 300C of this modified example 3 as described above, there will be no situation where the end 2222 enters the groove 3111, and when operating the torque wrench 200C, the offset of the central axes Ax1 and Ax2 can be suppressed by another area 224. Therefore, it achieves the same effect as the modified example 1 described above.

[0196] Furthermore, the inventions in the above-described variations 1 to 3 include the appendices (1) to (10) shown below.

[0197] (1) An ultrasonic treatment device, comprising:

[0198] A vibration source having a first thread, the vibration source being used to generate ultrasonic vibration;

[0199] A vibration transmission component, which is longitudinally elongated, has a blade at its front end and a second thread at its base end for connection to the vibration source; and

[0200] A knob that can rotate together with the vibration transmission component about the length axis of the vibration transmission component.

[0201] The knob has:

[0202] The first engaging part does not engage with the pawl of the torque wrench; and

[0203] The second engaging part engages with the claw part of the torque wrench.

[0204] The first engaging portion suppresses the offset between the rotation center axis of the knob and the rotation center axis of the torque wrench by preventing it from engaging with the torque wrench when the torque wrench is rotated.

[0205] (2) The ultrasonic treatment apparatus according to (1), wherein,

[0206] The first engaging portion is located at a position closer to the front end than the second engaging portion.

[0207] The first engaging portion is provided with a groove through which the claw portion can pass.

[0208] An inclined surface is provided on the side that constitutes the groove.

[0209] (3) The ultrasonic treatment apparatus according to (2), wherein,

[0210] The second engaging part is provided with an engaging part whose outer diameter, centered on the rotation center axis of the knob, increases along the rotation direction of the torque wrench and decreases at a predetermined rotation position.

[0211] (4) The ultrasonic treatment apparatus according to (3), wherein,

[0212] The inclined surface has a shape in which its diameter, centered on the rotational axis of the knob, gradually increases along the rotational direction of the torque wrench.

[0213] (5) The ultrasonic treatment apparatus according to (2), wherein,

[0214] The groove section is provided with multiple grooves.

[0215] The inclined surface is provided on all of the plurality of grooves.

[0216] (6) The ultrasonic treatment apparatus according to (1), wherein,

[0217] The first engaging portion is located at a position closer to the front end than the second engaging portion.

[0218] The outer diameter of the first engaging part is smaller than the outer diameter of the second engaging part.

[0219] (7) The ultrasonic treatment apparatus according to (6), wherein,

[0220] The outer radius of the first engaging portion is smaller than the separation dimension between the claw portion and the rotation center axis of the torque wrench.

[0221] (8) The ultrasonic treatment apparatus according to (1), wherein,

[0222] The first engaging portion is located at a position closer to the base end than the second engaging portion.

[0223] (9) The ultrasonic treatment apparatus according to (8), wherein,

[0224] The outer diameter of the first engaging portion is greater than or equal to the outer diameter of the second engaging portion.

[0225] (10) The ultrasonic treatment apparatus according to (1), wherein,

[0226] The knob also has a rotary operating part that accepts rotary operation as a user operation.

[0227] (Variation Example 4)

[0228] The clamping component 12 of the above-described embodiment may also adopt the structure of the modified example 4 shown below.

[0229] Furthermore, for ease of explanation, the processing device of this Modification 4 will be referred to as processing device 2D. Additionally, the clamping component of this Modification 4 will be referred to as clamping component 12D.

[0230] Figures 18-21 This is a diagram illustrating variation 4 of the implementation method. Specifically, Figure 18 It is a sectional view of the front end of the cutting tool 2D with the XZ plane containing the central axis Ax1 and viewed from the +Y axis side. Figure 19 This is a sectional view of the front end of the 2D cutting tool, viewed from the +X axis side, using the YZ plane. Additionally, Figure 18 and Figure 19 This indicates that the clamping component 12D has approached the processing unit 131. Figure 20 This is a view of the front end of the liner 123 from the +Z axis side. Figure 21 This is a diagram showing the front end of the liner 123 viewed from the -Z axis side.

[0231] like Figure 18 As shown, the clamping component 12D of this modified example 4 includes a pad retainer 122 and a pad 123.

[0232] The pad holder 122 is an elongated member made of metal. Furthermore, the pad holder 122 is axially supported on the first pin 101 at its base end Ar2, allowing it to rotate relative to the first pin 101 about the second rotation axis Rx2, and is fixed to the second pin 121. That is, by rotating the pad holder 122 about the second rotation axis Rx2, the clamp member 12D opens and closes relative to the handling section 131.

[0233] like Figure 18 and Figure 19 As shown, a recess 1221 extending along the length direction of the liner holder 122 is provided on the Z-axis side surface. The sidewall of the recess 1221 on the base end side Ar2 is removed. That is, the recess 1221 communicates with the outside on the base end side Ar2.

[0234] In addition, such as Figure 18 As shown, the end of the front end of the pad holder 122 on the -Z axis side is provided with a front end bend 1222 that protrudes towards the front end side Ar1 parallel to the XY plane. The end face of the front end bend 1222 on the -Z axis side is formed by extending the opening face of the recess 1221 into a plane (a plane parallel to the XY plane). In addition, the front end face 1223 of the front end bend 1222 ( Figure 18 It is composed of planes parallel to the YZ plane.

[0235] Here, as the front bending portion 1222, in Figure 18 The shape is a flat plate with a cross-sectional area that is approximately constant from the base end side Ar2 toward the front end side Ar1, but it is not limited to this. For example, an inclined surface may be provided on the end face of the front end bend 1222 on the -Z axis side, and the shape may be such that the cross-sectional area of ​​the front end bend 1222 cut by the YZ plane decreases as it moves toward the front end side Ar1.

[0236] like Figure 18 and Figure 19 As shown, the pad holder 122 described above is provided with a cover RC made of electrically insulating resin.

[0237] The cover RC is provided to cover the outer surface of the gasket retainer 122, excluding the Z-axis side and the front end face 1223. Alternatively, the cover RC may be formed into the gasket retainer 122 by insert molding, or it may be fixed relative to the gasket retainer 122 by snap-fit ​​assembly or metal pins.

[0238] Furthermore, the first plane including the front end face 1223 and the second plane passing through the front end of the cover RC and orthogonal to the central axis Ax1 are set to be approximately coplanar. More specifically, the front end of the cover RC is located within a range from a state in which it protrudes a maximum of 0.5 mm towards the front end side Ar1 relative to the front end face 1223 to a state in which it recedes a maximum of 0.5 mm towards the base end side Ar2 relative to the front end face 1223.

[0239] The pad 123 is softer than the vibration transmission member 13 and is made of an electrically insulating and biocompatible resin material, such as polytetrafluoroethylene (PTFE). Furthermore, the pad 123 is supported by the pad holder 122, and when the clamp member 12D approaches the treatment section 131, the pad 123 abuts against the inclined surface 1311 of the treatment section 131. Figure 18 The inclined surface 1311 is an inclined surface that reduces the cross-sectional area of ​​the treatment part 131 cut by the YZ plane as it moves toward the front end side Ar1.

[0240] like Figure 20 and Figure 21 As shown, the pad 123 has a generally rectangular shape that extends in a generally straight line.

[0241] like Figure 18 , Figure 19 and Figure 21 As shown, a recess 1231 extending along the length direction of the pad 123 is provided on the Z-axis side of the pad 123. The sidewall of the base end Ar2 of the recess 1231 is removed. That is, the recess 1231 communicates with the outside at the base end Ar2.

[0242] In addition, such as Figure 20 As shown, each side of the pad 123 intersecting the Y-axis is provided with a slit 1232 extending from the front end to the base end. Hereinafter, for ease of explanation, the portion of each side of the pad 123 intersecting the Y-axis that protrudes towards the +Z axis relative to the slit 1232 will be referred to as the locking portion 1233. Figure 20 ).

[0243] Furthermore, the pad 123 is supported on the pad retainer 122 by inserting the +Z axis side portion of the pad 123 into the interior of the recess 1221 and locking the pair of locking portions 1233 onto the inner side of the recess 1221.

[0244] In addition, such as Figure 18 and Figure 20 As shown, a protrusion 1234 protruding towards the front end Ar1, parallel to the XY plane, is provided at the -Z axis side end of the front end of the pad 123. With the pad 123 supported by the pad holder 122, this protrusion 1234 is located on the -Z axis side of the front end bend 1222. Furthermore, the +Z axis side end face of the protrusion 1234 is formed by a plane parallel to the XY plane. That is, the +Z axis side end face of the protrusion 1234 is parallel to the -Z axis side end face of the front end bend 1222. Moreover, when the clamp member 12D is brought close to the handling portion 131 and the pad 123 abuts against the inclined surface 1311 of the handling portion 131, as... Figure 18As shown, the end face of the protrusion 1234 on the +Z axis side abuts against the end face of the front curved portion 1222 on the -Z axis side.

[0245] Therefore, the first plane including the front end face 1223 and the third plane passing through the front end of the protrusion 1234 and orthogonal to the central axis Ax1 are set to be approximately coplanar. More specifically, the front end of the protrusion 1234 is located within a range from a state in which it protrudes a maximum of 0.5 mm towards the front end side Ar1 relative to the front end face 1223 to a state in which it recedes a maximum of 0.5 mm towards the base end side Ar2 relative to the front end face 1223.

[0246] Furthermore, the first plane including the front end face 1223 and the fourth plane passing through the front end of the processing unit 131 and orthogonal to the central axis Ax1 are also set to be substantially coplanar. More specifically, the front end of the processing unit 131 is located within a range from a state in which it protrudes a maximum of 0.5 mm towards the front end side Ar1 relative to the front end face 1223 to a state in which it recedes a maximum of 0.5 mm towards the base end side Ar2 relative to the front end face 1223.

[0247] In this variation example 4, as Figure 18 As shown, the first plane including the front end face 1223, the second plane passing through the front end of the cover RC and orthogonal to the central axis Ax1, the third plane passing through the front end of the protrusion 1234 and orthogonal to the central axis Ax1, and the fourth plane passing through the front end of the treatment part 131 and orthogonal to the central axis Ax1 are set to be substantially coplanar, but are not limited thereto. As long as the treatment part 131 does not contact the liner holder 122, the front end of the treatment part 131 may be located at a position Ar1 closer to the front end side than the front end face 1223, or the front end of the protrusion 1234 may be located at a position Ar2 closer to the base end side than the front end face 1223.

[0248] Furthermore, in this modified example 4, for example, when high-frequency energy is applied to the target area, the control device 3 supplies high-frequency power between the pad holder 122 and the vibration transmission member 13 via the cable C. When high-frequency power is supplied between the pad holder 122 and the vibration transmission member 13, a high-frequency current is applied to the target area held between the pad holder 122 and the handling part 131. That is, the pad holder 122 and the handling part 131 function as electrodes, respectively.

[0249] According to the above description of this variation 4, the following effects are achieved.

[0250] Furthermore, when the cover RC is provided, the front end of the cover RC is prone to being positioned where it protrudes towards the front end Ar1 relative to the front end Ar1 of the pad 123. In this state, the gripping performance of the front end on biological tissue will decrease accordingly with the amount by which the front end of the cover RC protrudes towards the front end Ar1 relative to the front end Ar1 of the pad 123.

[0251] In the treatment device 2D of this modified example 4, the first plane including the front end face 1223, the second plane passing through the front end of the cover RC and orthogonal to the central axis Ax1, the third plane passing through the front end of the protrusion 1234 and orthogonal to the central axis Ax1, and the fourth plane passing through the front end of the treatment section 131 and orthogonal to the central axis Ax1 are set to be substantially coplanar. Therefore, even when the cover RC is provided, the holding performance of the front end for holding biological tissue will not decrease.

[0252] Especially when the clamping member 12D is brought close to the treatment section 131 and the pad 123 abuts against the inclined surface 1311 of the treatment section 131, the end face of the protrusion 1234 on the +Z axis side abuts against the end face of the front curved portion 1222 on the -Z axis side. Therefore, when biological tissue is held at the front end, the protrusion 1234 and the treatment section 131 can be used to hold the biological tissue with a relatively high holding force.

[0253] Furthermore, in the treatment device 2D of this modified example 4, the protrusion 1234 is located between the treatment part 131 and the front curved part 1223. Therefore, it is possible to achieve a structure in which the treatment part 131 and the front curved part 1223 do not contact each other.

[0254] Furthermore, in the treatment device 2D of this modified example 4, the front curved portion 1223 is located between the front end of the cover RC and the protrusion 1234. Therefore, the cover RC will not contact the gasket 123, and heat from the gasket 123 will not be conducted to the cover RC. That is, the cover RC can be prevented from melting due to heat.

[0255] In addition, in the above-described modified example 4, the pad retainer 122 is axially supported on the first pin 101 at the base end side Ar2 in such a way that it can rotate relative to the first pin 101 about the second rotation axis Rx2, and is fixed with the second pin 121. However, it is not limited to this and the following structure may also be adopted.

[0256] For example, as clamp component 12D, in addition to the pad holder 122 and the pad 123, a clamp component body is also provided. This clamp component body is axially supported on the first pin 101 at its base end Ar2 in a manner that allows it to rotate relative to the first pin 101 about a second rotation axis Rx2, and is fixed to the second pin 121. Furthermore, the pad holder 122 is supported on the clamp component body in a manner that allows it to swing about a rotation axis substantially parallel to the second rotation axis Rx2.

[0257] Moreover, the invention in the above-described variant 4 includes the following appendices (11) to (19).

[0258] (11) An ultrasonic treatment device, wherein...

[0259] The ultrasonic treatment device includes:

[0260] A vibration transmission component, which is longitudinally elongated, is used to transmit ultrasonic vibrations generated by a vibration source to the front end.

[0261] A treatment section, located at the front end of the vibration transmission member, having an inclined surface; and

[0262] A clamping component that can be opened and closed relative to the processing unit.

[0263] The clamp component includes:

[0264] A resin pad abuts against the inclined surface when the clamping member is closed relative to the disposal part;

[0265] A metal gasket retainer that holds the gasket; and

[0266] A resin cover that covers at least a portion of the outer surface of the gasket retainer.

[0267] The liner is provided with a protrusion that extends toward the front end.

[0268] The liner retainer has a front curved portion protruding towards the front end.

[0269] When the clamping member is closed relative to the dispensing part, the protrusion and the front curved part abut against each other.

[0270] (12) The ultrasonic treatment apparatus according to (11), wherein,

[0271] A first plane passing through the front end of the front curved portion and orthogonal to the central axis along the length direction of the vibration transmission member is approximately coplanar with a second plane passing through the front end of the cover and orthogonal to the central axis.

[0272] (13) The ultrasonic treatment apparatus according to (12), wherein,

[0273] The distance between the first plane and the second plane is greater than 0 mm and less than 0.5 mm.

[0274] (14) The ultrasonic treatment apparatus according to (11), wherein,

[0275] The first plane, passing through the front end of the curved portion and orthogonal to the central axis along the length direction of the vibration transmission member, and the third plane, passing through the front end of the protrusion and orthogonal to the central axis, are approximately coplanar.

[0276] (15) The ultrasonic treatment apparatus according to (14), wherein,

[0277] The distance between the first plane and the third plane is greater than 0 mm and less than 0.5 mm.

[0278] (16) The ultrasonic treatment apparatus according to (11), wherein,

[0279] The first plane, passing through the front end of the front curved section and orthogonal to the central axis along the length direction of the vibration transmission member, and the fourth plane, passing through the front end of the treatment section and orthogonal to the central axis, are approximately coplanar.

[0280] (17) The ultrasonic treatment apparatus according to (16), wherein,

[0281] The distance between the first plane and the fourth plane is greater than 0 mm and less than 0.5 mm.

[0282] (18) The ultrasonic treatment apparatus according to (11), wherein,

[0283] The opposing end faces of the curved front portion and the protrusion are parallel.

[0284] (19) The ultrasonic treatment apparatus according to (11), wherein,

[0285] The ultrasonic treatment device also includes a shaft through which the vibration transmission component passes.

[0286] The gasket retainer is axially supported on the shaft in a manner that allows it to rotate relative to the shaft.

[0287] The clamping member opens and closes relative to the disposal section by rotating the pad retainer relative to the shaft.

Claims

1. An ultrasonic treatment device, wherein, The ultrasonic treatment device includes: handle; Disposal Department; A vibration transmission component for transmitting ultrasonic vibrations generated by a vibration source from the handle to the treatment unit; A retainer, located within the handle, is used to hold the base end of the vibration transmission member internally; A knob, which is mounted on the front end of the handle in a manner that allows it to rotate relative to the handle about the length axis of the vibration transmission member; and A slider, located within the handle, is movable relative to the retainer along the length axis. The retainer and the knob are integrated into one unit. The inner surface of the handle has a base end protrusion that protrudes inward radially about the length axis. The retainer has a flange portion that projects radially outward about the length axis. The flange portion is positioned by engaging with the base end protrusion portion. The flange portion and the base end protrusion portion are located on the base end side relative to the slider.

2. The ultrasonic treatment apparatus according to claim 1, wherein, The retainer and the knob are joined together by pressing.

3. The ultrasonic treatment apparatus according to claim 2, wherein, The retainer has a protruding section that is integrated with the knob.

4. The ultrasonic treatment apparatus according to claim 1, wherein, The ultrasonic treatment device also includes a pin that passes through the retainer and the knob in a direction intersecting the length axis, and maintains the relative positional relationship between the retainer and the knob along the length axis.

5. The ultrasonic treatment apparatus according to claim 1, wherein, The handle has a groove-shaped storage section. The flange portion is inserted into the receiving portion. By inserting the flange into the storage portion, the retainer is positioned relative to the handle in a direction along the length axis.

6. The ultrasonic treatment apparatus according to claim 1, wherein, The ultrasonic treatment device also includes a rotating member located at a position closer to the base end than the engagement position of the retainer and the knob, and abutting against the knob. This rotating member rotates together with the knob according to user operation. The rotating member abuts against the retaining member, transmitting the force generated by the rotation of the knob to the retaining member.

7. The ultrasonic treatment apparatus according to claim 6, wherein, The retainer has a pair of arcuate portions, which respectively pass through a pair of arcuate holes provided on the rotating member.

8. The ultrasonic treatment apparatus according to claim 1, wherein, The ultrasonic treatment device also includes: A cylindrical member, at least a portion of which is conductive, through which the vibration transmission member passes; and A clamping component, at least a portion of which is conductive, is disposed at the front end of the cylindrical member, and holds biological tissue between the clamping component and the front end of the vibration transmitting member. The vibration transmission member and the clamping member treat the biological tissue using at least one of ultrasonic vibration imparted to the biological tissue and a high-frequency current supplied between the vibration transmission member and the clamping member.

9. The ultrasonic treatment apparatus according to claim 8, wherein, The retaining element is electrically insulating. The retainer is provided with a conductive path that is electrically connected to the clamping member via the cylindrical member, and the conductive path is for the flow of the high-frequency current.

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