JP2010162216A - Ultrasonic treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic treatment apparatus of structure for preventing twist of a connection code and improving rotation operability of a treating part and to provide a conducting method for an oscillator unit of the ultrasonic treatment apparatus. <P>SOLUTION: In the ultrasonic treatment apparatus 1, rotary fixing contact point units 45a, 45b are fixed to a doughnut plate-shaped part 43 of a body case 10, so that even when a positive electrode ring 28a and a negative electrode ring 28b rotate in the direction around an axis by rotary operation of a rotary operation knob 83, the rotary fixing contact point units 45a, 45b do not rotate in conjunction with the rotation of the electrode rings. In this state, connection state between the rotary fixing contact point unit 45a and the positive electrode ring 28a is electrically maintained at a positive contact point 123a and connection state between the rotary fixing contact point unit 45b and the negative electrode ring 28b is electrically maintained at a negative contact point 123b. Thus, twists of a positive connection code 42a and a negative connection code 42b connected to the rotary fixing contact point units 45a, 45b are prevented. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an ultrasonic treatment apparatus that performs treatment such as incision, excision, or coagulation of a living tissue using ultrasonic waves.

  Generally, in an ultrasonic treatment apparatus that performs incision, excision, or coagulation of a living body using ultrasonic waves, an operation unit is connected to the proximal end side of an elongated insertion unit that is inserted into a body cavity. An ultrasonic transducer that generates ultrasonic vibrations is disposed in the operation unit. A treatment portion for treating living tissue is disposed at the distal end portion of the insertion portion.

  The insertion portion has an elongated circular tubular sheath. A rod-shaped probe main body is inserted into the sheath. An ultrasonic transducer is connected to the proximal end side of the probe body. The ultrasonic vibration generated by the ultrasonic transducer is transmitted to the probe tip on the tip side of the probe body.

  The treatment section is provided with a jaw opposite the probe tip. The proximal end portion of the jaw is rotatably supported by the distal end portion of the sheath via a support shaft. Drive means for driving the jaws is inserted into the sheath so as to be able to advance and retract in the axial direction.

  An operation handle is disposed in the operation unit. The drive means is driven to advance and retreat in the axial direction in accordance with the operation of the operation handle, and the jaw is opened / closed with respect to the probe tip in conjunction with the operation of the drive means.

  At this time, the living tissue is grasped between the probe tip and the jaw in accordance with the jaw closing operation. In this state, ultrasonic vibration from the ultrasonic transducer is transmitted to the probe tip through the probe body, so that treatment such as incision, excision, or coagulation of living tissue using ultrasonic waves is performed. It has become.

  In addition, the operation unit is provided with a rotation operation means such as a rotation operation knob for rotating the treatment unit around the axis by an operator's operation. When the operator rotates the rotation operation means, the rotation torque is transmitted to the sheath, the probe main body, the jaw, the probe tip, and the drive means, and the rotation means rotates.

  As an example of the ultrasonic treatment apparatus, there is an ultrasonic incision and coagulation apparatus disclosed in Patent Document 1. As shown in FIG. 13, the ultrasonic coagulation / cutting device has a main body case 200. A probe main body 201 is inserted into the main body case 200.

  A vibrator unit 205 is provided on the base end side of the main body case 200. The vibrator unit 205 is separate from the main body case 200 and is attached to the main body case 200 when the ultrasonic incision and coagulation apparatus is used.

  The vibrator unit 205 has a vibrator case 207. Inside the vibrator case 207, an ultrasonic vibrator 210 that is formed by a piezoelectric element that converts current into ultrasonic vibration and generates ultrasonic waves is provided. The ultrasonic transducer 210 has a plus electrode 211a and a minus electrode 211b. A horn 212 for expanding the amplitude of the ultrasonic vibration is disposed on the tip side of the ultrasonic vibrator 210. The horn 212 is attached to the proximal end portion of the probe main body 201 with a connection screw 213.

  A cable 215 for supplying current from the power supply device main body to the ultrasonic transducer 210 is connected to the proximal end side of the transducer case 207. The cable 215 is attached to the vibrator case 207 by connecting the bend stopper 217 to the vibrator case 207. Inside the cable 217, a plus connection cord 221a and a minus connection cord 221b are provided. The plus connection cord 221a is connected to the plus electrode 211a of the ultrasonic transducer 210 via the plus electrical contact 222a, and the minus connection cord 221b is connected to the minus electrode 211b of the ultrasound transducer 210 via the minus electrical contact 222b.

  In addition, a rotation operation knob 230 that performs a rotation operation of the treatment section 240 is provided on the distal end side of the main body case 200. When the rotation operation of the rotation operation knob 230 is performed, the rotational driving force is transmitted to the probe main body 201 so that the probe main body 201 rotates together with the sheath 241 in the direction around the axis.

  As another example of the ultrasonic treatment apparatus, there is an ultrasonic surgical apparatus disclosed in Patent Document 2. As shown in FIG. 14, this ultrasonic surgical apparatus has a main body case 300. A probe main body 301 is inserted into the main body case 300.

  A vibrator unit 305 is provided on the base end side of the main body case 300. The vibrator unit 305 is separate from the main body case 300 and is attached to the main body case 300 when the ultrasonic surgical apparatus is used.

  The vibrator unit 305 has a vibrator case 307. Inside the transducer case 307, an ultrasonic transducer 310 that is formed by a piezoelectric element that converts current into ultrasonic vibration and generates ultrasonic waves is provided. The ultrasonic transducer 310 includes a plus electrode 311a and a minus electrode 311b. A horn 312 for expanding the amplitude of the ultrasonic vibration is disposed on the tip side of the ultrasonic vibrator 310. The horn 312 is attached to the proximal end portion of the probe main body 301 by a connection screw 313.

  A central electrode 315 and a circumferential electrode 316 are provided on the base end face of the vibrator case 307. As shown in FIG. 15, the center electrode 315 is disposed at the axial center position of the transducer case 307, and the circumferential electrode 316 is disposed concentrically with the center electrode 315 as the center. A minus electrode 311b is connected to the center electrode 315, and a plus electrode 311a is connected to the circumferential electrode 316.

  A cable 318 that supplies current from the power supply device main body to the ultrasonic transducer 310 is connected to the proximal end side of the transducer case 307. A connection unit 320 is provided at a connection portion between the cable 318 and the vibrator unit 305. The connection unit 320 is attached to the vibrator case 307 via the holding ring 322 so as to be rotatable about the axis. A screw hole 332 is formed in the inner peripheral surface of the distal end portion of the holding ring 322 so as to be screwed with the outer peripheral surface of the proximal end portion of the vibrator case 307. In addition, a protruding portion 333 that protrudes inward is provided at the base end portion of the holding ring 322.

  The connection unit 320 includes an electrode block 321 that abuts the base end surface of the vibrator case 307 and a bend stopper 317 that is coupled to the base end portion of the electrode block 321. The electrode block 321 is in pressure contact with the protruding portion 333 of the holding ring 322 and receives a force in the distal end direction. Thereby, the movement of the connecting unit 320 in the axial direction is restricted. A cable 318 is inserted into the bend stopper 317.

  On the distal end surface of the electrode block 321, a negative contact pin 328b is provided at the center, and a positive contact pin 328a is provided on the side of the negative contact pin 328b. The tip of the plus contact pin 328a is connected to the circumferential electrode 316 by a plus electrical contact 327a, and the tip of the minus contact pin 328b is connected to the center electrode 315 by a minus electrical contact 327b. The plus contact pin 328 a and the minus contact pin 328 b are rotatable with respect to the vibrator case 307 in the direction around the axis integrally with the electrode block 321 and the bend stopper 317. Further, the plus contact pin 328a and the minus contact pin 328b are urged toward the distal end side by the elastic member 329, and are reliably connected to the circumferential electrode 316 and the center electrode 315 in a pressure contact state, respectively. The base end portions of the plus contact pin 328a and the minus contact pin 328b are connected to the plus connection cord 324a and the minus connection cord 324b inside the cable 317, respectively.

  In addition, a rotation operation knob 330 that performs a rotation operation of the treatment portion 341 is provided on the distal end side of the main body case 300. When the rotation operation of the rotation operation knob 330 is performed, the rotational driving force is transmitted to the probe main body 301, and the probe main body 301 rotates about the axis together with the sheath 342. When the probe main body 301 rotates in the direction around the axis, the ultrasonic transducer 310 and the transducer case 307 are rotated in the direction around the axis in conjunction with the rotation.

  Here, since the connection unit 320 is rotatable in the direction around the axis with respect to the vibrator case 307, even if the vibrator case 307 is rotated in the direction around the axis by the rotation operation knob 330, the connection unit is interlocked with this. 320 is designed not to rotate. As a result, the positive contact pin 328a does not rotate in the direction around the axis in conjunction with the rotation of the circumferential electrode 316. In this state, the electrical connection between the positive contact pin 328a and the circumferential electrode 316 at the positive electrical contact 327a. Connection status is maintained. Similarly, the minus contact pin 328b does not rotate in the direction around the axis in conjunction with the rotation of the center electrode 315, and the electrical connection state between the minus contact pin 328b and the center electrode 315 at the minus electrical contact 327b is maintained in this state. Is done.

JP-A-9-98980 Japanese Patent Laid-Open No. 10-127655

  In the ultrasonic coagulation / incision treatment apparatus of Patent Document 1, when the probe is rotated in the direction around the axis by the rotary operation knob 230, the ultrasonic transducer 210 is also rotated in the direction around the axis in conjunction with the rotation. When the ultrasonic transducer 210 rotates, the positive electrodes 211a and 211b of the ultrasonic transducer 210 also rotate, and the plus connection cord 221a and the minus connection cord 221b connected to the plus electrode 211a and the minus electrode 211b, respectively, are twisted. . Thereby, the rotation operation of the treatment section becomes heavy, and the operability is lowered.

  In the ultrasonic surgical apparatus of Patent Document 2, the positive contact pin 328a and the negative contact pin 328b are rotated around the axis in conjunction with the rotation of the circumferential electrode 316 and the center electrode 315, respectively, when the rotary operation knob 330 is rotated. In this state, the electrical connection between the plus contact pin 328a and the center electrode 315 and between the minus contact pin 328b and the circumferential electrode 316 is maintained. However, in order to form a rotation structure in which the connection unit 320 is rotatable about the axis with respect to the vibrator case 307, the outer peripheral surface of the base end portion of the vibrator case 307 is screwed into the screw hole 332 of the holding ring 322. ing. Further, the connection unit 320 is fixed to the vibrator case 307 in a state where the protruding portion 333 of the holding ring 322 is pressed against the electrode block 321 and the electrode block 321 is joined to the vibrator case 307. Since it is fixed with such a structure, the fixing strength of the connection unit 320 is relatively low. For this reason, when the plus electrodes 311a and 311b of the ultrasonic transducer 310 are rotated by the operation of the rotation operation knob 330, and the circumferential electrode 316 and the center electrode 315 connected thereto are rotated, they are attached to the electrode block 321. The plus contact pin 328a and the minus contact pin 328b are rotated together with the circumferential electrode 316 and the center electrode 315, respectively, by the contact pressure with the circumferential electrode 316 and the center electrode 315, respectively. The phenomenon occurs. As a result, the plus connection cord 324a and the minus connection cord 324b connected to the plus contact pin 328a and the minus contact pin 328b are twisted. Thereby, the rotation operation of the treatment section becomes heavy, and the operability is lowered.

  The present invention has been made paying attention to the above-described problems, and an object of the present invention is to prevent the twisting of the connecting cord and improve the rotational operability of the treatment portion and the vibration thereof. It is in providing the electricity supply method of a child unit.

  In order to achieve the above object, an invention according to claim 1 is directed to an ultrasonic transducer that is formed of a piezoelectric element and generates ultrasonic vibrations, and a base end portion is connected to the ultrasonic transducer, A treatment section that performs ultrasonic treatment is disposed, a probe that transmits ultrasonic vibration from the ultrasonic vibrator to a tip portion, a main body case that holds the ultrasonic vibrator and the probe, and the ultrasonic vibration A rotating operation means for rotating the child and the probe around the axis of the probe, two connection cords for supplying a positive potential and a negative potential to the ultrasonic transducer, and two electrodes of the ultrasonic transducer, An electrical connection means for electrically connecting the connection cord, and the electrical connection means is electrically connected to the connection cord and fixed to the main body case. The probe and the ultrasonic transducer are integrated with the probe and the ultrasonic transducer in a state where the element is electrically connected to the electrode of the ultrasonic transducer and the electrical connection between the contact element on the fixed portion side is maintained. An ultrasonic treatment apparatus comprising: a movable element side contact element that is rotatable in a direction around an axis.

  The invention according to claim 2 is the ultrasonic treatment apparatus according to claim 1, wherein the probe is a transducer unit integrated probe provided integrally with the ultrasonic transducer.

  According to a third aspect of the present invention, the contact element on the fixed portion side includes a rod-shaped portion and a leaf spring-like C-shaped arm provided in a bifurcated shape from a tip portion of the rod-shaped portion, and the movable portion side. The contact element is integrally formed with the ultrasonic transducer outside the ultrasonic transducer, and is rotatable with respect to the C-shaped arm in a state of being pressed by both ends of the C-shaped arm. The ultrasonic treatment apparatus according to claim 2, further comprising a cylindrical electrode ring that is electrically connected.

  The invention of claim 4 further includes a base plate attached to the main body case, and the contact element on the movable part side is electrically connected to a first electrode which is one electrode of the ultrasonic transducer. And a back mass for fixing the ultrasonic transducer to the probe, and the contact element on the fixing portion side is provided at a position of an axial center on the base plate, and is in a state of being pressed against the back mass. An electrically connected contact member and a concentric arrangement with the contact member as a center, and a pressure contact state with a second electrode that is not connected to the back mass of the ultrasonic transducer The ultrasonic treatment device according to claim 2, further comprising a contact ring electrically connected to the contact ring.

  In the ultrasonic treatment apparatus according to the first to fourth aspects of the present invention, even if the contact element on the movable portion side rotates about the axis by the rotation operation of the rotation operation means, the fixed portion is interlocked therewith. The contact element on the side maintains an electrical connection with the contact element on the movable part side without rotating. Thereby, the twist of the connection cord connected to the contact element on the fixed part side can be prevented, and the operability of the rotation operation of the treatment part can be improved.

  According to a fifth aspect of the present invention, at least one of the contact element on the fixed portion side and the contact element on the movable portion side includes a biasing portion that biases one of the contact elements in a direction in pressure contact with the other contact element. The ultrasonic treatment apparatus according to claim 1, further comprising:

  In the ultrasonic treatment apparatus according to the fifth aspect of the present invention, at least one of the contact element on the fixed part side and the contact element on the movable part side is urged in a direction in which one contact element is pressed against the other contact element. The urging section is provided. Thereby, the contact element on the fixed part side and the contact element on the movable part side can be reliably connected.

  According to a sixth aspect of the present invention, the transducer unit integrated probe includes connection means for attaching the transducer unit integrated probe to the main body case, and the main body case is connected to the connection means on an inner peripheral surface. The ultrasonic treatment apparatus according to claim 2, further comprising a corresponding unit.

  In the ultrasonic treatment apparatus according to the sixth aspect of the present invention, the transducer unit integrated probe is assembled on a separate line from the main body case, and is inserted into the main body case from the base end side. Then, the coupling unit is coupled to the coupling corresponding portion of the main body case, so that the transducer unit integrated probe is mounted in the main body case. Thereby, the operativity of operation which assembles an ultrasonic treatment apparatus can be improved compared with the case where a main body case and a transducer unit integrated probe are formed integrally.

  ADVANTAGE OF THE INVENTION According to this invention, the ultrasonic treatment apparatus of the structure which prevents the twist of a connection cord and improves the rotational operability of a treatment part, and the electricity supply method of the vibrator | oscillator unit can be provided.

FIG. 1 is a perspective view showing a schematic configuration of an ultrasonic treatment apparatus according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing an internal structure of a main body case of the ultrasonic treatment apparatus according to the first embodiment. FIG. 3 is a side view showing the probe of the ultrasonic treatment apparatus according to the first embodiment in a partial cross section. FIG. 4 is a cross-sectional view showing the transducer unit integrated probe of the ultrasonic treatment apparatus according to the first embodiment. FIG. 5 is a side view showing a partial cross section of the distal end portion of the insertion portion of the ultrasonic treatment apparatus according to the first embodiment. FIG. 6 is a cross-sectional view showing a connecting portion between the insertion portion and the operation portion of the ultrasonic treatment apparatus according to the first embodiment. FIG. 7 is a cross-sectional view showing a connection state between a connection cord and an ultrasonic transducer of the ultrasonic treatment apparatus according to the first embodiment. FIG. 8 is a perspective view showing a fixing rod of the ultrasonic treatment apparatus according to the first embodiment. 9 is a cross-sectional view taken along line IX-IX in FIG. FIG. 10 is a cross-sectional view showing the internal structure of the main body case of the ultrasonic treatment apparatus according to the second embodiment of the present invention. FIG. 11 is a cross-sectional view showing a connection state between a connection cord and an ultrasonic transducer of the ultrasonic treatment apparatus according to the second embodiment. 12 is a sectional view taken along line 12-12 of FIG. FIG. 13 is a cross-sectional view showing an electrical connection state of a transducer unit of the conventional ultrasonic incision and coagulation apparatus disclosed in Patent Document 1. FIG. 14 is a cross-sectional view showing an electrical connection state of a transducer unit of a conventional ultrasonic surgical apparatus of Patent Document 2. 15 is a cross-sectional view taken along line 15-15 in FIG.

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing the overall configuration of the ultrasonic treatment apparatus 1 according to this embodiment.

  As shown in FIG. 1, the ultrasonic treatment apparatus 1 includes an insertion portion 2 for insertion into a body cavity, and an operation portion 3 connected to the proximal end side of the insertion portion 2. A treatment section 4 that performs ultrasonic treatment of the affected area is provided at the distal end of the insertion section 2.

  FIG. 2 is a diagram showing the internal structure of the operation unit 3. As shown in FIG. 2, the operation unit 3 has a main body case 10 formed of an insulating material. A transducer unit integrated probe 11 is inserted into the main body case 10. The transducer unit integrated probe 11 includes a transducer unit 12 and a probe 13. The transducer unit 12 includes an ultrasonic transducer 20 and a horn 21. The ultrasonic vibrator 20 is formed by a piezoelectric element that converts current into ultrasonic vibration, and generates ultrasonic waves. The ultrasonic transducer 20 has a plus electrode 22a and a minus electrode 22b.

  As shown in FIG. 2, two electrode rings in a cylindrical shape (cylindrical in this embodiment) as contact elements (electrical connection means) on the movable part side along the axial direction are disposed outside the ultrasonic transducer 20. 28a and 28b are juxtaposed. A plus electrode ring 28 a is fixed and disposed integrally with the ultrasonic transducer 20 at the distal end side of the ultrasonic transducer 20, and a negative electrode ring 28 b is disposed at the proximal end side of the ultrasonic transducer 20. 20 is fixed integrally therewith. The plus electrode ring 28a is electrically connected to the plus electrode 22a, and the minus electrode ring 28b is electrically connected to the minus electrode 22b. A cone-shaped horn 21 for expanding the amplitude of the ultrasonic vibration is disposed on the distal end side of the ultrasonic vibrator 20. The horn 21 includes a flange portion 34 at the base end portion. A back mass 23 is disposed on the proximal end side of the ultrasonic transducer 20.

  FIG. 3 is a view showing the appearance of the probe 13. The probe 13 is designed so that the entire length is an integral multiple of a half wavelength of ultrasonic vibration. The probe 13 has a metal rod-like probe main body 30 and a small diameter portion 31 that is provided on the proximal end side of the probe main body 30 and has a smaller diameter than the probe main body 30. As shown in FIG. 4, through holes 35 and 36 are provided in the center of the ultrasonic transducer 20 and the horn 21 of the transducer unit 12, respectively. The through holes 35 and 36 are formed to have substantially the same diameter as the small diameter portion 31 of the probe 13, and the small diameter portion 31 can be inserted into the through holes 35 and 36. The small-diameter portion 31 is set to a length that extends to the outside of the ultrasonic transducer 20 while being inserted through the through holes 35 and 36. A male screw portion 31 a is formed in the extending portion of the small diameter portion 31. Further, the back mass 23 is formed with a screw hole 37 a that is screwed with the male screw portion 31 a of the small diameter portion 31. When the transducer unit integrated probe 11 is formed, the small-diameter portion 31 of the probe 13 is sequentially inserted into the through hole 36 of the horn 21 and the through hole 35 of the ultrasonic transducer 20. Then, the ultrasonic vibrator 20 and the horn 21 are assembled and fixed to the probe 13 by screwing the male screw portion 31a of the small diameter portion 31 into the screw hole 37a of the back mass 23. Thereby, the transducer unit integrated probe 11 is formed.

  As shown in FIG. 2, a groove portion (connection corresponding portion) 39 for fixing the vibrator unit 12 is provided on the inner peripheral surface of the main body case 10. The flange portion 34 of the horn 21 is connected to the groove portion 39 via an inner ring (connecting means) 38. Thereby, the transducer unit integrated probe 11 is attached to the main body case 10.

  As shown in FIG. 3, a probe tip 32 is provided at the tip of the probe main body 30. The ultrasonic vibration generated by the ultrasonic vibrator 20 is transmitted to the probe tip 32 through the probe main body 30. The probe main body 30 has a reduced axial cross-sectional area at several points of ultrasonic vibration nodes in the middle of the axial direction so that the probe tip 32 can obtain the amplitude necessary for the treatment. In addition, ring-shaped vibration absorbing members 33 protrude from the outer peripheral surface of the probe main body 30 at several positions of vibration node positions in the axial direction.

  FIG. 5 is a diagram illustrating a configuration of the distal end portion of the insertion portion 2. As shown in FIG. 5, the insertion portion 2 includes a sheath body 50 formed of a cylindrical body, and a jaw 51 disposed on the distal end side of the sheath body 50. The sheath body 50 has a metal sheath 52 that is an outer cylinder and a metal drive pipe 53 that is an inner cylinder. The drive pipe 53 is inserted in the sheath 52 so as to be slidable in the axial direction. The probe 13 is inserted into the drive pipe 53. Interference between the probe 13 and the drive pipe 53 is prevented by a vibration absorbing member 33 (see FIG. 3).

  As shown in FIG. 5, the proximal end portion of the jaw 51 is rotatably attached to the distal end portion of the sheath 52 via a fulcrum pin 57. When the probe 13 and the sheath body 50 are assembled, the jaw 51 is disposed at a position facing the probe tip 32 of the probe 13. The jaw 51 and the probe tip 32 constitute the treatment section 4 of the ultrasonic treatment apparatus 1.

  Connection pin insertion holes 65 are formed around the fulcrum pin 57 on both sides of the base end portion of the jaw 51. A connecting pin 66 for connecting the jaw 51 and the drive pipe 53 is mounted in the connecting pin insertion hole 65. As a result, the driving pipe 53 moves back and forth in the axial direction, whereby the driving force of the driving pipe 53 is transmitted to the jaw 51 via the connecting pin 66. Then, the jaw 51 is rotationally driven about the fulcrum pin 57, and the jaw 51 performs an opening / closing operation with respect to the probe distal end portion 32.

  As shown in FIG. 1, the operation unit 3 includes a fixed handle 80, a movable handle 82, and a rotation operation knob 83 as rotation operation means. A switch holding portion 85 is provided between the fixed handle 80 and the main body case 10 on the distal end side. A plurality of (two in this embodiment) switches 86 are attached to the switch holding portion 85. The treatment function (for example, coagulation, incision, etc.) of the treatment section 4 of the ultrasonic treatment apparatus 1 can be selected by the switch 86.

  As shown in FIG. 2, the body case 10 is provided with an insertion hole 90 for inserting the movable handle 82 on the base end face side of the fixed handle 80. A movable handle 82 is inserted into the main body case 10 from the insertion hole 90. A movable handle 82 is rotatably attached to the main body case 10 by a fixed pin 94. The movable handle 82 has a U-shaped arm portion 91 at the top. The arm portion 91 is attached to the drive pipe 53 via a pin (not shown).

  Finger hooks 95 and 96 are provided at the lower ends of the fixed handle 80 and the movable handle 82, respectively. The movable handle 82 is rotated about the fixed pin 94 by placing the finger on the finger rests 95 and 96, and the movable handle 82 is opened and closed with respect to the fixed handle 80. By opening and closing the movable handle 82 with respect to the fixed handle 80, an operating force is transmitted to the drive pipe 53 connected to the arm portion 91 of the movable handle 82, and the drive pipe 53 moves back and forth in the axial direction. In conjunction with this, the jaw 51 opens and closes the probe tip 32.

  The rotation operation knob 83 is attached to the main body case 10 so as to be rotatable around the axis about the axis of the sheath 52. As shown in FIG. 6, the rotation operation knob 83 is disposed on the outer peripheral side of the sheath 52. An insertion hole for the metal pin 72 is formed in the probe main body 30, the sheath 52, and the rotation operation knob 83. The drive pipe 53 is formed with a long hole 74 into which the metal pin 72 is inserted. The long hole 74 extends in the axial direction of the probe main body 30. The probe main body 30, the sheath 52, the drive pipe 53, and the rotation operation knob 83 are assembled together via a metal pin 72. Thus, when the rotation operation knob 83 is rotated, the assembly unit of the probe main body 30, the sheath 52, and the drive pipe 53 inside the main body case 10 is rotated together with the rotation operation knob 83 in the direction around the axis. It is like that. In conjunction with this operation, the probe tip 32 and the jaw 51 are also rotationally driven integrally with the probe main body 30, the sheath 52 and the drive pipe 53 in the direction around the axis. Further, the ultrasonic transducer 20 and the horn 21 etc. which are assembled integrally with the probe 13 are also rotated and driven around the axis integrally with the probe main body 30.

  A long hole 74 into which the metal pin 72 is inserted is formed in the drive pipe 53 in a long hole shape along the axial direction. Therefore, even when the probe main body 30, the sheath 52, the drive pipe 53, and the rotation operation knob 83 are assembled together by the metal pin 72, the drive pipe 53 can slide in the axial direction with respect to the metal pin 72. ing.

  As shown in FIG. 2, a cable 40 that supplies current from the power supply main body 5 (see FIG. 1) to the ultrasonic transducer 20 is connected to the base end side of the main body case 10. The cable 40 is attached to the main body case 10 by connecting the bend stopper 41 to the main body case 10. Inside the cable 40, a plus connection cord 42a and a minus connection cord 42b are provided.

  FIG. 7 is a diagram illustrating a connection state between the plus connection cord 42 a and the minus connection cord 42 b and the ultrasonic transducer 20. As shown in FIG. 7, the main body case 10 is provided with a donut plate-like portion 43 that protrudes inward from the inner peripheral surface. The donut plate-like portion 43 is disposed on the base end side of the back mass 23 in the main body case 10. Two rotary fixed contact units 45 a and 45 b as contact elements (electrical connection means) on the fixed part side are fixed to the donut plate-like part 43. The base end portion of one rotary fixed contact unit 45a extends to the base end side of the donut plate-like portion 43, and is electrically connected to the plus connection cord 42a. Similarly, the base end portion of the other rotary fixed contact unit 45b extends to the base end side of the donut plate-like portion 43 and is electrically connected to the minus connection cord 42b.

  As shown in FIG. 8, the rotary fixed contact unit 45a includes a rod-shaped portion 121 and a substantially C-shaped fixed contact arm (plate spring-like shape) as a biasing portion provided in a bifurcated manner from the tip of the rod-shaped portion 121. C-shaped arm) 122. As shown in FIG. 9, the fixed contact arm 122 is provided with a plus contact 123a that is pressed against the plus electrode ring 28a.

  Further, as shown in FIG. 8, the distance t between both ends of the fixed contact arm 122 of the rotary fixed contact unit 45a is smaller than the outer diameter of the plus electrode ring 28a. For this reason, when the rotary fixed contact unit 45a is assembled to the outside of the positive electrode ring 28a, the positive electrode ring 28a pushes the gap between both ends of the fixed contact arm 122 of the rotary fixed contact unit 45a. At this time, due to the elastic force of the fixed contact arm 122, both ends (both ends) of the fixed contact arm 122 are urged in a direction in which they are pressed against the outer peripheral surface of the plus electrode ring 28a, thereby sandwiching the plus electrode ring 28a. Thereby, the rotary fixed contact unit 45a is reliably connected to the plus electrode ring 28a.

  At this time, the positive electrode ring 28a is rotatable in the direction around the axis while maintaining electrical connection with the rotary fixed contact unit 45a. That is, even if the positive electrode ring 28a rotates about the axis by the rotation operation of the rotation operation knob 83, the rotary fixed contact unit 45a does not rotate in conjunction with this operation. The first rotary electric circuit is maintained in the state where the positive electrode ring 28a rotates in the direction around the axis and the rotary fixed contact unit 45a is fixed, so that the electrical connection between the positive electrode ring 28a and the rotary fixed contact unit 45a is maintained. A connecting portion is formed.

  When the rotary fixed contact unit 45a is connected to the plus electrode ring 28a, the plus potential from the power supply main body 5 passes through the plus connection cord 42a, the rotary fixed contact unit 45a, and the plus electrode ring 28a, and the ultrasonic transducer. 20 positive electrodes 22a are supplied.

  Similar to the rotary fixed contact unit 45a, the rotary fixed contact unit 45b has a rod-shaped portion 121 and a substantially C-shaped fixed contact arm (plate spring-like shape) as a biasing portion provided in a bifurcated manner from the tip of the rod-shaped portion 121. C-shaped arm) 122. The fixed contact arm 122 is provided with a minus contact 123b that is pressed against the minus electrode ring 28b.

  When the rotary fixed contact unit 45b is assembled to the outside of the negative electrode ring 28b, both ends (both ends) of the fixed contact arm 122 are made negative electrode ring 28b by the elastic force of the fixed contact arm 122, similarly to the rotary fixed contact unit 45a. The negative electrode ring 28b is sandwiched between the negative electrode ring 28b. As a result, the rotary fixed contact unit 45b is securely connected to the negative electrode ring 28b.

  At this time, the negative electrode ring 28b is rotatable about the axis while maintaining electrical connection with the rotary fixed contact unit 45b. That is, even if the minus electrode ring 28b rotates in the direction around the axis by the rotation operation of the rotation operation knob 83, the rotary fixed contact unit 45b does not rotate in conjunction with this operation. The second rotary type electrical system in which the electrical connection between the negative electrode ring 28b and the rotary fixed contact unit 45b is maintained in a state where the negative electrode ring 28b rotates in the direction around the axis and the rotary fixed contact unit 45b is fixed. A connecting portion is formed.

  When the rotary fixed contact unit 45b is connected to the negative electrode ring 28b, the negative potential from the power supply device body 5 passes through the negative connection cord 42b, the rotary fixed contact unit 45b, and the negative electrode ring 28b, and the ultrasonic transducer. 20 negative electrodes 22b.

  Next, the operation of the ultrasonic treatment apparatus 1 according to this embodiment will be described.

  When the ultrasonic treatment apparatus 1 according to this embodiment is used, the movable handle 82 is opened and closed with respect to the fixed handle 80. By opening and closing the movable handle 82 with respect to the fixed handle 80, an operating force is transmitted to the drive pipe 53 connected to the arm portion 91 of the movable handle 82, and the drive pipe 53 moves back and forth in the axial direction. Since the metal pin 72 does not move, the advance / retreat operation of the drive pipe 53 is not transmitted to the probe main body 30, the sheath 52, and the rotation operation knob 83. In conjunction with the advance / retreat operation of the drive pipe 53, the jaw 51 opens and closes the probe distal end portion 32.

  Further, in the ultrasonic treatment apparatus 1, the probe main body 30, the sheath 52, the drive pipe 53, and the rotation operation knob 83 are integrally assembled by the metal pin 72. Thus, when the rotation operation knob 83 is rotated, the assembly unit of the probe main body 30, the sheath 52, and the drive pipe 53 inside the main body case 10 is rotated together with the rotation operation knob 83 in the direction around the axis. . In conjunction with this operation, the probe tip 32 and the jaw 51 are also rotationally driven integrally with the probe main body 30, the sheath 52 and the drive pipe 53 in the direction around the axis.

  Next, a method for energizing the vibrator unit 12 will be described. In the ultrasonic treatment apparatus 1, the positive potential from the power supply device body 5 is supplied to the positive electrode 22a of the ultrasonic transducer 20 through the positive connection cord 42a, the rotary fixed contact unit 45a, and the positive electrode ring 28a. The minus potential from the power supply main body 5 is supplied to the minus electrode 22b of the ultrasonic transducer 20 through the minus connection cord 42b, the rotary fixed contact unit 45b, and the minus electrode ring 28b.

  The rotary fixed contact unit 45a and the positive electrode ring 28a are electrically connected by a positive contact 123a, and the rotary fixed contact unit 45b and the negative electrode ring 28b are electrically connected by a negative contact 123b. The rotary fixed contact unit 45 a and the rotary fixed contact unit 45 b are fixed to the donut plate-like portion 43 of the main body case 10. For this reason, even if the plus electrode ring 28a and the minus electrode ring 28b rotate in the direction around the axis by the rotation operation of the rotation operation knob 83, the rotary fixed contact unit 45a and the rotary fixed contact unit 45b do not rotate in conjunction with this. Since the rotary fixed contact unit 45a and the rotary fixed contact unit 45b do not rotate, the plus connection cord 42a and the minus connection cord 42b connected to the rotary fixed contact unit 45a and the rotary fixed contact unit 45b are not twisted. Yes.

  Further, the distance between both ends of the fixed contact arm 122 of the rotary fixed contact unit 45a and the rotary fixed contact unit 45b is smaller than the outer diameter of the plus electrode ring 28a and the minus electrode ring 28b, respectively. For this reason, when the rotary fixed contact unit 45a is connected to the positive electrode ring 28a, the fixed contact arm 122 of the rotary fixed contact unit 45a is pressed against the outer peripheral surface of the positive electrode ring 28a by elastic force. Similarly, when the rotary fixed contact unit 45b is connected to the negative electrode ring 28b, the fixed contact arm 122 of the rotary fixed contact unit 45b is pressed against the outer peripheral surface of the negative electrode ring 28b by elastic force. Thereby, the rotary fixed contact unit 45a and the rotary fixed contact unit 45b are securely connected to the plus electrode ring 28a and the minus electrode ring 28b, respectively.

  Next, an operation of assembling the transducer unit integrated probe 11 with the main body case 10 will be described. In the ultrasonic treatment apparatus 1, the transducer unit integrated probe 11 is assembled on a separate line from the main body case 10. The assembled transducer unit integrated probe 11 is inserted into the main body case 10 from the base end side of the main body case. The transducer unit integrated probe 11 is attached to the main body case 10 by connecting the flange portion 34 of the horn 21 to the groove portion 39 of the main body case via the inner ring 38.

  Therefore, the ultrasonic treatment apparatus 1 having the above configuration has the following effects. That is, in the ultrasonic treatment apparatus 1 according to the present embodiment, the rotary fixed contact unit 45a and the positive electrode ring 28a are electrically connected by the positive contact 123a, and the rotary fixed contact unit 45b and the negative electrode ring 28b are electrically connected by the negative contact 123b. Has been. Since the rotary fixed contact unit 45 a and the rotary fixed contact unit 45 b are fixed to the donut plate-like portion 43 of the main body case 10, the positive electrode ring 28 a and the negative electrode ring 28 b are rotated around the axis by the rotation operation of the rotation operation knob 83. Even if it rotates, the rotary fixed contact unit 45a and the rotary fixed contact unit 45b do not rotate in conjunction with this. Thereby, the plus connection cord 42a and the minus connection cord 42b connected to the rotary fixed contact unit 45a and the rotary fixed contact unit 45b can be prevented from being twisted, and the operability of the rotation operation of the treatment section 4 can be improved.

  Further, the distance between both ends of the fixed contact arm 122 of the rotary fixed contact unit 45a and the rotary fixed contact unit 45b is smaller than the outer diameter of the plus electrode ring 28a and the minus electrode ring 28b, respectively. For this reason, when the rotary fixed contact unit 45a is connected to the positive electrode ring 28a, the fixed contact arm 122 of the rotary fixed contact unit 45a is urged by the elastic force in a direction in pressure contact with the outer peripheral surface of the positive electrode ring 28a. It has become. Similarly, when the rotary fixed contact unit 45b is connected to the negative electrode ring 28b, the fixed contact arm 122 of the rotary fixed contact unit 45b is urged by the elastic force in a direction in pressure contact with the outer peripheral surface of the negative electrode ring 28b. It has become. Thereby, the rotary fixed contact unit 45a and the rotary fixed contact unit 45b can be reliably connected to the plus electrode ring 28a and the minus electrode ring 28b, respectively.

  Furthermore, in the ultrasonic treatment apparatus 1, the transducer unit integrated probe 11 is assembled on a separate line from the main body case 10 and is inserted into the main body case 10 from the base end side of the main body case. Then, the transducer unit integrated probe 11 is mounted in the main body case 10 by connecting the flange portion 34 of the horn 21 to the groove portion 39 of the main body case via the inner ring 38. Thereby, the operativity of operation which assembles the ultrasonic treatment apparatus 1 can be improved compared with the case where the main body case 10 and the transducer unit integrated probe 11 are formed integrally.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the configuration of the ultrasonic treatment apparatus 1 of the first embodiment is changed as follows. In addition, the same code | symbol is attached | subjected about the part same as 1st Embodiment, and the description is abbreviate | omitted.

  FIG. 10 is a diagram showing the internal structure of the operation unit 3. As shown in FIG. 10, the operation unit 3 has a main body case 10 formed of an insulating material. A transducer unit integrated probe 130 is inserted into the main body case 10. The transducer unit integrated probe 130 includes a transducer unit 131 and a probe 13. The transducer unit 131 includes an ultrasonic transducer 140 and a horn 141. The ultrasonic vibrator 140 is formed by a piezoelectric element that converts electric current into ultrasonic vibration, and generates ultrasonic waves. The ultrasonic transducer 140 has a minus electrode 142b as a first electrode and a plus electrode 142a as a second electrode. A conical horn 141 for expanding the amplitude of the ultrasonic vibration is disposed on the distal end side of the ultrasonic vibrator 140. Further, a back mass 143 as a contact element on the movable part side is disposed on the base end side of the ultrasonic transducer 140. A negative electrode 142b is connected to the back mass 143. The horn 141 is provided with a flange portion 34. The flange portion 34 engages with the groove portion 39 of the main body case 10 via the inner ring 38. Thereby, the transducer unit integrated probe 130 is attached to the main body case 10.

  As shown in FIG. 10, a cable 40 that supplies current from the power supply main body to the ultrasonic transducer 140 is connected to the base end side of the main body case 10. The cable 40 is attached to the main body case 10 by connecting the bend stopper 41 to the main body case 10. Inside the cable 40, a plus connection cord 42a and a minus connection cord 42b are provided.

  FIG. 11 is a diagram illustrating a connection state of the plus connection cord 42 a, the minus connection cord 42 b, and the ultrasonic transducer 140. As shown in FIG. 11, a base plate 150 as a base member is attached to the main body case 10 in a fixed state. The base plate 150 is disposed on the base end side of the back mass 143 in the main body case 10. The base plate 150 is provided with a negative contact plate 151 as a contact member and a positive contact ring 152 as a contact ring. The minus contact plate 151 and the plus contact ring 152 constitute a contact element on the fixed portion side. As shown in FIG. 12, the negative contact plate 151 is disposed at the axial center position of the main body case 10 (base plate 150), and the positive contact ring 152 is concentrically disposed around the negative contact plate 151. The base end of the positive contact ring 152 is connected to the positive connection cord 42a, and the base end of the negative contact plate 151 is connected to the negative connection cord 42b.

  As shown in FIG. 11, the positive contact ring 152 includes a rod-shaped portion 160a and a ring-shaped plate portion 161 provided at the tip of the rod-shaped portion 160a. The ring-shaped plate portion 161 is provided in a state of being exposed on the front end surface of the base plate 150. The ring-shaped plate portion 161 has a plus contact 153a that is pressed against the plus electrode 142a.

  Further, as shown in FIG. 11, a leaf spring portion 162 as an urging portion is provided at the proximal end portion of the plus electrode 142a. When the plus electrode 142 a is connected to the plus contact ring 152, the leaf spring portion 162 is deformed in the distal direction by the ring-like plate portion 161. At this time, the leaf spring portion 162 is urged in the direction in which it is pressed against the plus contact ring 152 by the elastic force of the leaf spring portion 162. Thereby, the positive contact ring 152 is reliably connected to the positive electrode 142a.

  At this time, the plus electrode 142 a is rotatable in the direction around the axis of the ultrasonic transducer 140 while maintaining electrical connection with the plus contact ring 152. That is, even if the plus electrode 142a rotates in the direction around the axis by the rotation operation of the rotation operation knob 83, the plus contact ring 152 does not rotate in conjunction with this operation. When the positive electrode 142a rotates in the direction around the axis and the positive contact ring 152 is fixed, a first electrical connection portion is formed in which the electrical connection between the positive electrode 142a and the positive contact ring 152 is maintained. Yes.

  By connecting the plus contact ring 152 to the plus electrode 142a, the plus potential from the power supply main body is supplied to the plus electrode 142a of the ultrasonic transducer 140 through the plus connection cord 42a and the plus contact ring 152. .

  The negative contact plate 151 has a rod-shaped portion 160b and a center plate portion 165 provided at the tip of the rod-shaped portion 160b. The center plate portion 165 is provided in a state of being exposed on the front end surface of the base plate 150. The center plate portion 165 has a negative contact 153 b connected to the back mass 143.

  As shown in FIG. 11, the center plate portion 165 has a leaf spring structure as an urging portion. When the back mass 143 is connected to the negative contact plate 151, the center plate portion 165 is deformed in the proximal direction by the back mass 143. At this time, the center plate portion 165 is biased in a direction in which it is pressed against the back mass 143 by the elastic force of the center plate portion 165. This ensures that the negative contact plate 151 is connected to the back mass 143.

  At this time, the back mass 143 is rotatable in the direction around the axis while maintaining electrical connection with the negative contact plate 151. That is, even if the back mass 143 rotates in the direction around the axis by the rotation operation of the rotation operation knob 83, the minus contact plate 151 does not rotate in conjunction with this operation. When the back mass 143 rotates around the axis and the negative contact plate 151 is fixed, a second electrical connection portion is formed that maintains the electrical connection between the back mass 143 and the negative contact plate 151. Yes.

  By connecting the negative contact plate 151 to the back mass 143, a negative potential from the power supply device main body passes through the negative connection cord 42 b, the negative contact plate 151, the back mass 143, and the negative electrode 142 b of the ultrasonic transducer 140. To be supplied.

  Next, the operation of the ultrasonic treatment apparatus according to this embodiment will be described.

  A method for energizing the vibrator unit 131 will be described. In the ultrasonic treatment apparatus, the positive potential from the power supply device body is supplied to the positive electrode 142a of the ultrasonic transducer 140 through the positive connection cord 42a and the positive contact ring 152. The negative potential from the power supply device body is supplied to the negative electrode 142b of the ultrasonic transducer 140 through the negative connection cord 42b, the negative contact plate 151, and the back mass 143.

  The positive contact ring 152 and the positive electrode 142a are electrically connected by a positive contact 153a, and the negative contact plate 151 and the back mass 143 are electrically connected by a negative contact 153b. The plus contact ring 152 and the minus contact plate 151 are fixed to a base plate 150 attached to the main body case 10. For this reason, even if the plus electrode 142a and the back mass 143 are rotated about the axis by the rotation operation of the rotation operation knob 83, the plus contact ring 152 and the minus contact plate 151 are not rotated in conjunction with this. Since the plus contact ring 152 and the minus contact plate 151 do not rotate, the plus connection cord 42a and the minus connection cord 42b connected to the plus contact ring 152 and the minus contact plate 151 are not twisted.

  The positive electrode 142a is provided with a leaf spring portion 162, and the negative contact plate 151 is provided with a central plate portion 165 having a leaf spring structure. For this reason, when the plus contact ring 152 is connected to the plus electrode 142a, the leaf spring portion 162 of the plus electrode 142a is pressed against the plus contact ring 152 by an elastic force. Similarly, when the minus contact plate 151 is connected to the back mass 143, the center plate portion 165 is pressed against the back mass 143 by the elastic force of the center plate portion 165 of the minus contact plate 151. Thus, the positive contact ring 152 and the negative contact plate 151 are securely connected to the positive electrode 142a and the back mass 143.

  Therefore, the ultrasonic treatment apparatus having the above configuration has the following effects. That is, in the ultrasonic treatment apparatus according to the present embodiment, the positive contact ring 152 and the positive electrode 142a are electrically connected by the positive contact 153a, and the negative contact plate 151 and the back mass 143 are electrically connected by the negative contact 153b. Since the plus contact ring 152 and the minus contact plate 151 are fixed to the base plate 150 attached to the main body case 10, even if the plus electrode 142 a and the back mass 143 are rotated about the axis by the rotation operation of the rotation operation knob 83. In conjunction with this, the positive contact ring 152 and the negative contact plate 151 are prevented from rotating. Thereby, the plus connection cord 42a and the minus connection cord 42b connected to the plus contact ring 152 and the minus contact plate 151 can be prevented from being twisted, and the operability of the rotation operation of the treatment section 4 can be improved.

  The positive electrode 142a is provided with a leaf spring portion 162, and the negative contact plate 151 is provided with a central plate portion 165 having a leaf spring structure. For this reason, when the plus contact ring 152 is connected to the plus electrode 142a, the leaf spring portion 165 of the plus electrode 142a is urged in a direction in which it is pressed against the plus contact ring 152 by an elastic force. Similarly, when the minus contact plate 151 is connected to the back mass 143, the center plate portion 165 is biased in the direction in which the center plate portion 165 is pressed against the back mass 143 by the elastic force of the center plate portion 165 of the minus contact plate 151. It has become. Thereby, the plus contact ring 152 and the minus contact plate 151 can be reliably connected to the plus electrode 142a and the back mass 143.

  Further, in the ultrasonic treatment apparatus, the transducer unit integrated probe 130 is assembled on a separate line from the main body case 10 and is inserted into the main body case 10 from the base end side of the main body case. The transducer unit integrated probe 130 is attached to the main body case 10 by connecting the flange portion 34 of the horn 21 to the groove portion 39 of the main body case via the inner ring 38. Thereby, compared with the case where the main body case 10 and the transducer unit integrated probe 130 are integrally formed, the operability of the operation of assembling the ultrasonic treatment apparatus can be improved.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Ultrasonic treatment apparatus, 2 ... Insertion part, 3 ... Operation part, 4 ... Treatment part, 10 ... Main body case, 11, 130 ... Probe integrated with transducer unit, 12, 131 ... Transducer unit, 13 ... Probe, 20 , 140 ... ultrasonic transducers, 21, 141 ... horn, 22a, 142a ... positive electrode, 22b, 142b ... negative electrode, 23, 143 ... back mass, 28a ... positive electrode ring, 28b ... negative electrode ring, 42a ... positive Connection cord, 42b ... Negative connection cord, 43 ... Donut plate-like part, 45a, 45b ... Rotary fixed contact unit, 123a, 153a ... Positive contact, 123b, 153b ... Negative contact, 150 ... Base plate, 151 ... Negative contact plate, 152 ... Positive contact ring.

Claims (6)

An ultrasonic transducer formed of a piezoelectric element and generating ultrasonic vibrations;
A proximal end portion connected to the ultrasonic transducer, a treatment portion for performing ultrasonic treatment at the distal end portion, and a probe for transmitting ultrasonic vibration from the ultrasonic transducer to the distal end portion;
A body case for holding the ultrasonic transducer and the probe;
Rotation operation means for rotating the ultrasonic transducer and the probe around the axis of the probe;
Two connection cords for supplying a positive potential and a negative potential to the ultrasonic vibrator, respectively;
Electrical connection means for electrically connecting the two electrodes of the ultrasonic transducer and the connection cord;
With
The electrical connection means is electrically connected to the connection cord, and is electrically connected to a contact element on a fixing portion side fixed to the main body case, and an electrode of the ultrasonic transducer, A movable-element-side contact element that is rotatable integrally with the probe and the ultrasonic transducer in a direction around the axis of the probe while maintaining an electrical connection with the contact-element on the fixed-part side. Ultrasonic treatment apparatus characterized by.   The ultrasonic treatment apparatus according to claim 1, wherein the probe is a transducer unit integrated probe provided integrally with the ultrasonic transducer. The contact element on the fixed portion side includes a rod-shaped portion, and a leaf spring-shaped C-shaped arm provided in a bifurcated shape from the tip of the rod-shaped portion,
The contact element on the movable portion side is formed integrally with the ultrasonic transducer outside the ultrasonic transducer, and is pressed against both ends of the C-shaped arm with respect to the C-shaped arm. The ultrasonic treatment apparatus according to claim 2, further comprising a cylindrical electrode ring that is electrically connected to be rotatable. Furthermore, a base plate attached to the main body case is provided,
The contact element on the movable part side has a back mass that is electrically connected to the first electrode that is one electrode of the ultrasonic transducer and that fixes the ultrasonic transducer to the probe;
The contact element on the fixed portion side is provided at a position of an axial center on the base plate, and is electrically concentrically centered on the contact member, and a contact member electrically connected in a state of being pressed against the back mass And a contact ring that is disposed and electrically connected in a state of being pressed against a second electrode that is not connected to the back mass of the ultrasonic transducer. Item 3. The ultrasonic treatment apparatus according to Item 2.   At least one of the contact element on the fixed part side and the contact element on the movable part side includes an urging portion that urges one of the contact elements in a direction in pressure contact with the other contact element. Item 2. The ultrasonic treatment apparatus according to Item 1. The transducer unit integrated probe comprises a connecting means for attaching the transducer unit integrated probe to the main body case,
The ultrasonic treatment apparatus according to claim 2, wherein the main body case includes a connection corresponding portion connected to the connection means on an inner peripheral surface.

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