JP4315716B2 - Ultrasonic treatment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ultrasonic treatment apparatus that grasps a biological tissue and performs ultrasonic treatment such as incision, excision, or coagulation of the biological tissue.
[0002]
[Prior art]
Generally, an ultrasonic treatment apparatus performs ultrasonic treatment such as incision, excision, or coagulation on a living tissue.
In such an ultrasonic treatment apparatus, a proximal-side operation unit is connected to the proximal end portion of the insertion portion mantle tube, and an ultrasonic transducer that generates ultrasonic vibration is disposed in the operation unit, and the insertion portion An ultrasonic probe for treating living tissue is disposed at the distal end portion of the outer tube.
[0003]
In the ultrasonic treatment apparatus, a vibration transmitting member that transmits ultrasonic vibration from the ultrasonic transducer to the ultrasonic probe is inserted into the insertion portion mantle tube. The base end portion of the vibration transmitting member is connected to the ultrasonic transducer. Furthermore, the ultrasonic treatment apparatus is provided with a jaw that is rotatably supported against the ultrasonic probe.
[0004]
In the ultrasonic treatment apparatus, a movable handle for opening and closing the jaw with respect to the ultrasonic probe is disposed in the operation unit. Further, an operation force transmission member for transmitting an operation force from the movable handle to the jaw is inserted into the insertion portion outer tube so as to be movable back and forth in the axial direction.
[0005]
In the ultrasonic treatment apparatus, the operation force transmission member is advanced and retracted in the axial direction in accordance with the operation of the movable handle, and the jaw is closed with respect to the ultrasonic probe in conjunction with the advance and retreat operation of the operation force transmission member. Accordingly, the living tissue is grasped between the ultrasonic probe and the jaw.
[0006]
Subsequently, in this state, the ultrasonic treatment device transmits the ultrasonic vibration from the ultrasonic transducer to the ultrasonic probe via the vibration transmission member, thereby incising and excising the grasped biological tissue. Alternatively, ultrasonic treatment such as coagulation is performed.
[0007]
Such a conventional ultrasonic treatment apparatus includes, for example, a rod-like operating force transmission member on a channel tube of an insertion portion mantle tube as described in JP-A-2000-254135 and JP-A-2000-296133. Has been proposed which is inserted and arranged so as to be able to advance and retreat.
[0008]
These conventional ultrasonic treatment devices need to be cleaned and sterilized after use.
For this reason, the ultrasonic treatment apparatus described in JP 2000-254135 A includes an ultrasonic probe, a vibration transmission member, a jaw, a jaw holding member, and an operation force transmission member that are integrated. It is configured so that it can be removed from the outer sheath tube together with the ultrasonic transducer.
[0009]
On the other hand, the ultrasonic treatment apparatus described in JP 2000-296133 A is configured such that only the ultrasonic probe and the vibration transmitting member can be removed.
[0010]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-254135
[Patent Document 2]
Japanese Patent Laid-Open No. 2000-296133
[Problems to be solved by the invention]
However, the ultrasonic treatment apparatus described in Japanese Patent Laid-Open No. 2000-254135 has a complicated structure because the operating force transmission member is configured to be movable back and forth in the longitudinal axis direction.
For this reason, the ultrasonic treatment apparatus described in Japanese Patent Laid-Open No. 2000-254135 has the ultrasonic probe and the vibration transmission member as the ultrasonic vibrator when the ultrasonic probe and the vibration transmission member are attached to the ultrasonic vibrator. Since the operating force transmission member is twisted for screwing, a special jig is used. For this reason, the ultrasonic treatment apparatus described in Japanese Patent Laid-Open No. 2000-254135 is complicated to assemble and costs high.
[0013]
On the other hand, in the ultrasonic treatment apparatus described in JP 2000-296133 A, the operating force transmission member cannot be disassembled only by removing the ultrasonic probe and the vibration transmission member.
For this reason, in the ultrasonic treatment apparatus described in the above-mentioned Japanese Patent Application Laid-Open No. 2000-296133, the operation force transmission member is washed with running water.
[0014]
The present invention has been made in view of these circumstances, and an object of the present invention is to provide an ultrasonic treatment apparatus that can easily expose an operating force transmission member and can easily wash the operating force transmission member .
[0015]
[Means for Solving the Problems]
The ultrasonic treatment apparatus of the present invention has a distal end portion and a proximal end portion, and transmits an ultrasonic vibration generated by an ultrasonic transducer from the proximal end portion to the distal end portion; supported so as to be rotatable with respect to the tip portion of the ultrasonic probe, wherein the jaws for gripping the living tissue between the ultrasonic probe, for opening and closing the jaw relative to the ultrasonic probe An operating portion is detachable from the jaw, and after the mounting, the jaw is made rotatable, and the jaw and the operating portion are connected to each other to operate the jaw from the operating portion. An operating force transmission member for transmitting the operating force, a first attaching / detaching portion that covers the operating force transmitting member and rotatably supports the jaw on the distal end side, and is provided on the proximal end side with respect to the operating portion. A detachable insertion tube through the And characterized in that it.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 to 7 relate to one embodiment of the present invention, FIG. 1 is an overall configuration diagram showing an ultrasonic treatment apparatus of the embodiment, and FIG. 2 is a circuit block diagram showing a configuration of the apparatus main body of FIG. 3 is a side view showing the disassembled state of the ultrasonic treatment device of FIG. 1, FIG. 4 is a side view showing the assembled state of the entire ultrasonic treatment device of FIG. 1, and FIG. FIG. 6 is an explanatory view showing a detailed configuration, and FIG. 6 is an explanatory view showing a connection relationship between the operating rod and the operating portion main body.
[0017]
As shown in FIG. 1, in the ultrasonic treatment apparatus 1 of the present embodiment, an ultrasonic treatment tool 2 and a foot switch 3 are connected to the apparatus main body 1A.
In the ultrasonic treatment instrument 2, a treatment portion 5 is disposed at the distal end portion of the elongated sheath-like insertion portion outer tube 4, and a proximal side operation portion 6 is disposed at the proximal end portion. Here, the operation unit 6 includes an ultrasonic transducer (not shown) that generates ultrasonic vibrations, and an operation handle 8 that operates the treatment unit 5.
[0018]
Further, the insertion portion outer tube 4 is provided with a vibration transmitting member 9 for transmitting ultrasonic vibration from the ultrasonic vibrator to the treatment portion 5. The distal end portion of the vibration transmitting member 9 is exposed to the outside from the distal end of the insertion portion outer tube 4.
In addition, the operation panel 12 is provided on the front surface of the apparatus main body 1A. The operation panel 12 includes a power switch 13, an operation display panel 14, and an ultrasonic treatment instrument connection unit 15. Here, the operation unit 6 of the ultrasonic treatment instrument 2 is connected to one end of the handpiece cord 16. And the handpiece plug 17 arrange | positioned at the other end part of this handpiece cord 16 is detachably connected to the ultrasonic treatment instrument connecting portion 15 of the apparatus main body 1A.
[0019]
The operation display panel 14 of the apparatus main body 1A has a setting switch 18 for setting the magnitude of the ultrasonic output during normal operation when performing ultrasonic treatment, and the magnitude of the ultrasonic output set by the setting switch 18. And a display unit 19 for digitally displaying the height. The setting switch 18 is provided with an output increase switch 18a for changing (increasing / decreasing) the magnitude of the ultrasonic output and an output reduction switch 18b.
Furthermore, the apparatus main body 1A incorporates a drive circuit 20 for supplying electric energy to the ultrasonic transducer in the ultrasonic treatment instrument 2 as shown in FIG.
[0020]
The drive circuit 20 includes an oscillation circuit 21 that generates an ultrasonic signal having an ultrasonic frequency, a D / A converter 22 that generates a signal that indicates the magnitude of the ultrasonic output, and a signal from the D / A converter 22. And a power amplifier 24 for amplifying the output of the VCA circuit 23 to generate power for driving the ultrasonic transducer in the ultrasonic treatment instrument 2. The relay 25 for turning on / off the output line of the drive circuit 20, the control circuit 26 for controlling the operation of the ultrasonic treatment apparatus 1, and the interface (I) for transmitting the operation signal from the foot switch 3 to the control circuit 26 and the relay 25. / F) circuit 27 is provided.
[0021]
In addition, the control circuit 26 makes the ultrasonic output from the ultrasonic transducer in the ultrasonic treatment instrument 2 larger than the set output value by the setting switch 18 at the start of the ultrasonic treatment by operating the foot switch 3, An operation state switching means for controlling the ultrasonic output from the ultrasonic transducer to be a set output value when a predetermined set time set in advance has elapsed after the start of treatment is incorporated. Note that the relay 25 of the drive circuit 20 is interposed between the ultrasonic treatment instrument connector 15 and the power amplifier 24.
[0022]
As shown in FIGS. 3 and 4, the ultrasonic treatment instrument 2 can be disassembled into three units. That is, the handle unit 31, the probe unit 32, and the transducer unit 33 are configured. These three units 31 to 33 are assembled in the state shown in FIG.
[0023]
The vibrator unit 33 is provided with a handpiece 34 that is detachably connected to the handle unit 31. The handpiece 34 includes an ultrasonic transducer (not shown) for generating ultrasonic vibration in a cylindrical cover 34a.
In this ultrasonic transducer, a horn (not shown) for expanding the amplitude is connected to the distal end side, and the distal end side of the horn is attached to the proximal end side of the probe unit 32.
[0024]
Further, the cylindrical cover 34a is provided with a unit connecting portion 34b that is detachably connected to a vibrator connecting portion 6b of an operation portion main body 6a (to be described later) of the handle unit 31 at the distal end portion thereof. An engagement ring 39 (so-called C-ring) having a C-shape with a part of the ring cut off is attached to the outer peripheral surface of the unit connecting portion 34b. Note that the engagement ring 39 is formed in a substantially half-moon-like cross-sectional shape in which the cross-sectional shape has an arc on the outer periphery.
[0025]
The rear end portion of the cylindrical cover 34a is connected to a handpiece cord 16 provided with a handpiece plug 17 at the end portion.
In addition, the probe unit 32 is provided with an elongated, substantially rod-shaped vibration transmission member 9 that is detachably connected to the distal end side of a horn (not shown) in the transducer unit 33.
[0026]
A mounting screw 41a connected to the probe mounting portion 36a of the horn is formed at the base end portion of the vibration transmitting member 9. The mounting screw 41a is fixed by screwing into a screw hole portion of the probe mounting portion 36a in the vibrator unit 13. Thereby, the probe unit 32 and the vibrator unit 33 are assembled together.
Further, the vibration transmitting member 9 is provided with a flange-like support body 41b at the position (a plurality of positions) of the nodes of standing waves of ultrasonic vibration transmitted from the base end side. The support body 41b is formed in a ring shape with an elastic member.
[0027]
Further, in the vibration transmission member 9 of the present embodiment, a proximal-side horn 41c that performs second-stage amplitude expansion is disposed in front of the second node from the proximal end side. Further, on the distal end side of the proximal horn 41c, an intermediate portion 41d for transmitting ultrasonic vibration, a distal horn 41e for final amplitude expansion, and a treatment portion 41f (ultrasonic probe) are sequentially arranged. ing. Here, the treatment portion 41f arranged at the most distal end portion of the vibration transmitting member 9 is formed in, for example, a substantially cylindrical shape.
[0028]
The handle unit 31 includes an elongated insertion sheath portion 31a, a distal end working portion 31b disposed at a distal end portion of the insertion sheath portion 31a, and an operation portion 6 disposed at a proximal end portion of the insertion sheath portion 31a. Consists of Here, the operation unit 6 of the handle unit 31 is provided with a substantially cylindrical operation unit main body 6a. A transducer connecting portion 6b is formed at the base end portion of the operation portion main body 6a.
[0029]
In addition, the operation unit main body 6a is provided with a fixed handle 42 and a rotatable movable handle 43 constituting an operation means on the outer peripheral surface, and the operation handle 8 (see FIG. 1) is formed by the fixed handle 42 and the movable handle 43. Is configured.
Further, the operation unit body 6a is provided with electrode pins 44 for high frequency connection to which a high frequency power supply device (not shown) is connected.
[0030]
The upper portion of the fixed handle 42 is integrally formed with the cylindrical operation portion main body 6a. Furthermore, the operation end of the fixed handle 42 is provided with a finger hooking hole 42a for selectively inserting a plurality of fingers other than the thumb, and the operation end of the movable handle 43 is a finger hooking hole 43a for hanging the thumb of the same hand. Is provided.
[0031]
Further, a bifurcated connecting portion 43 b is formed on the upper end portion side of the movable handle 43. These bifurcated connecting portions 43b are arranged on both sides of the operation portion main body 6a. Furthermore, a handle pivot shaft 45 is provided at the upper end of each connecting portion 43b so as to project inward. These handle pivot shafts 45 are connected to the operation portion main body 6 a at a fulcrum located above the axis of the insertion portion outer tube 4. Accordingly, the movable handle 43 is pivotally supported by the handle pivot shaft 45 so as to be rotatable. The handle pivot shaft 45 is provided with an insulating cap for high frequency insulation.
[0032]
Further, each connecting portion 43 b of the movable handle 43 is provided with an operating shaft 47 below the handle pivot shaft 45. The operating shaft 47 is for transmitting advancing and retracting force to an operating rod 50 (see FIG. 5: operating force transmitting member) that is inserted through the insertion portion outer tube 4. In the present embodiment, the operation rod 50 is formed in a tubular shape as will be described later.
[0033]
And the operation rod 50 makes the jaw 51 mentioned later perform opening / closing operation with respect to the treatment part 41f by the operation | movement which advances / retreats to an axial direction. That is, the movable handle 43 and the operating shaft 47 constitute an operating means. The operating shaft 47 is disposed on a substantially axis line of the insertion portion outer tube 4.
[0034]
In the present embodiment, when the ultrasonic treatment instrument 2 grasps the handle and performs the closing operation of the movable handle 43, the operating shaft 47 moves forward, thereby pushing the operating rod 50 forward, with respect to the treatment portion 41f. The jaw 51 is configured to close.
[0035]
Further, as described above, the insertion sheath portion 31a is provided with the insertion portion outer tube 4, and the proximal end portion of the insertion portion outer tube 4 together with the rotary knob 48 is connected to the distal end portion of the operation portion main body 6a. It is attached so as to be rotatable around the axis of the center line of the main body 6a. Here, the insertion portion outer tube 4 is formed by mounting an insulating tube 49 on the outer peripheral surface of a metal tube (not shown). The insulating tube 49 is provided so as to cover most of the entire outer peripheral surface of the insertion portion outer tube 4 up to the base end portion.
[0036]
In the handle unit 31, a single-open jaw 51 for gripping a living tissue is rotatably attached to the distal end working portion 31b. An operating rod 50 is connected to the jaw 51 as will be described later. ◎
A gripping member 54 is disposed on the tip side of the jaw 51. Specifically, the jaw 51 is integrally connected and attached so as to sandwich the gripping member 54.
[0037]
The gripping member 54 has substantially serrated teeth 55 at both ends of the contact surface that contacts the living tissue. The grip member 54 is made of a low friction material such as PTFE (Teflon: trade name of DuPont). Further, since the gripping member 54 can swing with respect to the jaw 51 and has a low rigidity as a single unit, a rigidity member made of metal (not shown) may be attached to ensure the rigidity.
[0038]
The insertion portion outer tube 4 is provided with a jaw holding portion 52 for holding the jaw 51 at the distal end portion. The jaw holding part 52 is covered with an insulating cover 53 at the tip end of a substantially tubular holding member main body 52a to insulate the high-frequency current. Further, the jaw 51 is attached with a grasping member 54 for grasping a living tissue (organ).
[0039]
Further, the vibration transmitting member 9 of the probe unit 32 is inserted into the insertion portion outer tube 4. Further, the insertion portion outer tube 4 surrounds the vibration transmitting member 9, and a tubular operation rod 50 is inserted in such a manner that the tubular operation rod 50 can advance and retreat. The operating rod 50 is disposed in the insertion portion outer tube 4 leaving a gap.
[0040]
Next, a detailed configuration of the vicinity of the insertion portion outer tube 4 of the handle unit 31 will be described with reference to FIG. FIG. 5 is an explanatory view showing a detailed configuration in the vicinity of the insertion portion outer tube 4 of the handle unit 31.
[0041]
As shown in FIG. 5, in the handle unit 31, the attachment portion of the jaw 51 is inserted into a slot 52 b formed at the tip of the holding member main body 52 a of the insertion portion outer tube 4, and the holding member main body 52 a is interposed via the pivot shaft 60. It is attached to be able to rotate. FIG. 5 shows a state where the insulating cover 53 is removed. In order to ensure sufficient strength of the holding member main body 52a, the slot 52b is opened only on the upper side of the holding member main body 52a without penetrating the holding member main body 52a vertically. That is, the cross-sectional shape of the portion of the holding member main body 52a in which the slot 52b is formed is U-shaped.
[0042]
Further, the jaw 51 has an engagement groove 61 for connecting the operation rod 50 to the base end portion thereof. The operation rod 50 is formed in a tubular shape, and a distal end connecting portion 50a extends from the distal end side thereof. The tip connecting portion 50 a is formed with an engaging protrusion 62 that engages with the engaging groove 61 of the jaw 51.
[0043]
The operating rod 50 is inserted into an axial slot (not shown) formed on the proximal end side of the jaw 51, and the distal end connecting portion 50a is inserted into the engaging projection 62 of the distal end connecting portion 50a. Is inserted into the engaging groove 61 so as to be connected to the jaw 51.
[0044]
Thus, the operation rod 50 and the jaw 51 are connected above the pivot shaft 60. Therefore, when the operating rod 50 moves back and forth, the jaw 51 rotates (opens and closes) about the pivot shaft 60.
[0045]
Although not shown, the operation rod 50 and the jaw 51 are connected to each other by forming a shaft hole in the operation rod 50 and forming an engagement hole in the holding member main body 52a of the insertion portion outer tube 4 from the engagement hole. You may comprise so that a pivot pin may be penetrated.
[0046]
During the closing operation of the jaw 51, the grasping member 54 of the jaw 51 is pressed against the treatment portion 41f of the probe unit 32, whereby the living tissue is grasped between the treatment portion 41f and the grasping member 54. . At this time, the grasping member 54 comes into contact with the grasped living tissue over the entire surface. The grasped biological tissue is subjected to ultrasonic treatment such as coagulation or incision by frictional heat with the treatment portion 41f that vibrates at high speed. The jaw 51 is also used for exfoliation of living tissue.
[0047]
And the ultrasonic treatment tool 2 needs to be cleaned and sterilized and disinfected after use.
In the present embodiment, since the operation rod 50 is exposed so as to be easily washed, the insertion portion outer tube 4 is configured to be detachable from the operation portion 6 while holding the jaws 51.
[0048]
That is, the insertion portion outer tube 4 is provided with a proximal end side connection portion 71 that can be detachably connected to the distal end side of the operation portion main body 6a. The base end side connection portion 71 has a female screw portion 71a on the inner peripheral surface. On the other hand, the operation portion main body 6 a is provided with a mantle tube connection portion 72 to which the proximal end side connection portion 71 of the insertion portion mantle tube 4 is connected to the distal end side of the rotary knob 48. The outer tube connecting portion 72 has a male screw portion 72a on the outer peripheral surface.
[0049]
In the ultrasonic treatment instrument 2, the insertion portion outer tube 4 is rotatably connected by screwing the proximal end side connection portion 71 to the outer tube connection portion 72 of the operation portion main body 6a, and positioning in the rotation direction thereof. Is performed by connecting the jaw 51 and the operation rod 50 described above.
[0050]
Accordingly, when the ultrasonic treatment instrument 2 is washed after use, the connection between the jaw 51 and the operation rod 50 is released, and the insertion portion outer tube 4 is removed from the operation portion main body 6a while holding the jaw 51. be able to.
[0051]
Therefore, the ultrasonic treatment instrument 2 can expose the operation rod 50, and the operation rod 50 can be easily cleaned. In addition, the ultrasonic treatment instrument 2 can appropriately replace the insertion portion outer tube 4 including the jaw 51 as a consumable.
[0052]
Further, in the present embodiment, the ultrasonic treatment instrument 2 is configured such that the tubular operation rod 50 can be detached from the operation portion main body 6a as shown in FIG.
FIG. 6 is an explanatory diagram showing a connection relationship between the operation rod 50 and the operation unit main body 6a.
[0053]
As shown in FIG. 6, the ultrasonic treatment instrument 2 is configured such that a tubular operation rod 50 is detachable with respect to the operation portion main body 6a.
More specifically, the operation rod 50 is provided with a base end side connection portion 73 that can be detachably connected to the distal end side of the operation portion main body 6a. This base end side connection part 73 forms the external thread part 73a in the outer peripheral surface.
[0054]
On the other hand, the operation portion main body 6a is provided with an operation rod connection portion 74 to which the proximal end side connection portion 73 of the operation rod 50 is connected. The operation rod connecting portion 74 is provided on the tip end side of the slider 75. The operation rod connecting portion 74 has a female screw portion 74a on the inner peripheral surface on the distal end side. The slider 75 is for moving forward and backward in the longitudinal axis direction to transmit the operating force of the movable handle 43 to the operating rod 50.
And the ultrasonic treatment tool 2 connects the operation rod 50 detachably by screwing the base end side connection part 73 of the operation rod 50 to the slider 75 of the operation part main body 6a.
[0055]
Accordingly, the ultrasonic treatment instrument 2 can remove the operation rod 50 from the operation portion main body 6a after the insertion portion outer tube 4 is removed from the operation portion main body 6a to expose the operation rod 50.
Therefore, the ultrasonic treatment instrument 2 can remove the operation rod 50, and the operation rod 50 can be cleaned more easily. Further, the ultrasonic treatment instrument 2 can appropriately replace the jaw 51, the insertion portion outer tube 4 and the operation rod 50 as consumables.
[0056]
As a result, the ultrasonic treatment apparatus 1 of the present embodiment is configured so that the insertion portion outer tube 4 can be attached to and detached from the operation portion 6 while holding the jaws 51, so that the operation rod 50 is exposed and washed. Easy to do. In addition, the ultrasonic treatment apparatus 1 according to the present embodiment can replace the insertion portion outer tube 4 as a consumable item.
[0057]
Furthermore, in the ultrasonic treatment apparatus 1 according to the present embodiment, the operation rod 50 is configured to be detachable from the operation portion main body 6a, so that the operation rod 50 can be easily cleaned and replaced as a consumable item.
In the present embodiment, the operation rod 50 is configured using a tubular shape, but may be configured using a rod shape as long as the operation rod 50 can ensure rigidity. .
[0058]
The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the scope of the present invention.
[0059]
[Appendix]
(Additional Item 1) An ultrasonic probe that transmits ultrasonic vibration generated by an ultrasonic transducer and treats living tissue;
A jaw that is rotatably supported against the ultrasonic probe, and grips a living tissue between the ultrasonic probe;
An operation unit for opening and closing the jaw with respect to the ultrasonic probe;
An operation force transmitting member that connects the jaw and the operation unit and transmits an operation force from the operation unit to the jaw;
An insertion portion mantle tube covering the operating force transmission member and having the jaw provided on the distal end side;
Comprising
An ultrasonic treatment apparatus, wherein the jaw and the operation force transmission member are detachable, and the insertion portion outer tube is detachable from the operation portion.
[0060]
(Additional Item 2) An ultrasonic probe that transmits ultrasonic vibration generated by an ultrasonic transducer and treats living tissue;
A jaw that is rotatably supported against the ultrasonic probe, and grips a living tissue between the ultrasonic probe;
An operation unit for opening and closing the jaw with respect to the ultrasonic probe;
An operation force transmitting member that connects the jaw and the operation unit and transmits an operation force from the operation unit to the jaw;
An insertion portion mantle tube covering the operating force transmission member and having the jaw provided on the distal end side;
A drive circuit for controlling and driving the ultrasonic transducer;
Comprising
An ultrasonic treatment apparatus, wherein the jaw and the operation force transmission member are detachable, and the insertion portion outer tube is detachable from the operation portion.
[0061]
(Additional Item 3) The ultrasonic treatment apparatus according to Additional Item 1 or 2, wherein the operation force transmission member is detachably attached to the operation unit.
[0062]
【The invention's effect】
As described above, according to the present invention, it is possible to realize an ultrasonic treatment apparatus that can easily expose the operation force transmission member and easily clean the operation force transmission member .
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing an ultrasonic treatment apparatus according to a first embodiment. FIG. 2 is a circuit block diagram showing a configuration of the apparatus main body of FIG. 1. FIG. 3 is an exploded state of the ultrasonic treatment instrument of FIG. FIG. 4 is a side view showing an assembled state of the entire ultrasonic treatment apparatus of FIG. 1. FIG. 5 is an explanatory view showing a detailed configuration in the vicinity of the outer tube of the handle unit insertion portion. Explanatory diagram showing the connection relationship with the main unit [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Ultrasonic treatment apparatus 1A ... Apparatus main body 2 ... Ultrasonic treatment tool 4 ... Insertion part outer tube 5 ... Treatment part 6 ... Operation part 9 ... Vibration transmission member 31 ... Handle unit 32 ... Probe unit 33 ... Vibrator unit 41f ... Treatment section (ultrasonic probe)
50 ... Operation rod 50a ... Tip connecting part 51 ... Jaw 52 ... Jaw holding part 52a ... Holding part main body 60 ... Pivoting shaft 61 ... Engaging groove 62 ... Engaging protrusion 71 ... Proximal end side connecting part 71a ... Female thread part 72 ... outer tube connection part 72a ... male screw part

Claims (3)

An ultrasonic probe having a distal end portion and a proximal end portion and transmitting ultrasonic vibration generated by an ultrasonic transducer from the proximal end portion to the distal end portion ;
A jaw for gripping a living tissue between the supported so as to be rotatable with respect to the distal end portion, the ultrasonic probe of the ultrasonic probe,
An operation unit for opening and closing the jaw with respect to the ultrasonic probe;
An operation that is detachable with respect to the jaw and that allows the jaw to turn freely after being mounted and that connects the jaw and the operation portion to transmit the operation force from the operation portion to the jaw. A force transmission member;
The operating force transmission member is covered, the jaw is rotatably supported on the distal end side, and is detachably attached to the operating portion via a first attaching / detaching portion provided on the proximal end side. Tube,
An ultrasonic treatment apparatus comprising: A mantle tube connecting portion is provided on the distal end side of the operation portion, and a transmission member connecting portion is provided radially inside the mantle tube connecting portion in the operation portion,
The first attaching / detaching portion is attachable / detachable to / from the outer tube connecting portion, and a second attaching / detaching portion provided on the proximal end side of the operation force transmitting member is attachable / detachable to / from the transmitting member connecting portion. The ultrasonic treatment apparatus according to claim 1, wherein: The ultrasonic treatment according to claim 2, wherein the attachment / detachment of the first attachment / detachment portion to / from the outer tube connection portion and attachment / detachment of the second attachment / detachment portion to / from the transmission member connection portion are performed by screw connection. apparatus.

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