JP2000271137A - Medical treatment implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical treatment implement with improved operability capable of gang-controlling the energy supply to the treatment part by the handle operation of the operating part and applying treatment only when necessary. SOLUTION: A drive switch 61, which is turned on/off by opening/closing a movable operating handle 56 and is electrically connected to a drive circuit 52 for driving an ultrasonic resonator 51, is mounted on the side of a fixed handle 55 of the operating part 40 of this treatment tool. And because of the drive switch 61, the power supply from a battery 53 to the drive circuit 52 is controlled, so an interlocking means is structured for gang-controlling the supply of ultrasonic vibrations from the ultrasonic resonator 51 to the treatment part of a probe 11 as an energy supply means. Therefore, energy supply to the treatment part 10 is gang-controlled by the handle operation of the operating part 40, so that treatment is applied only when necessary and the operability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment tool for applying treatment to a living tissue to perform treatment.

[0002]

2. Description of the Related Art In recent years, various treatment systems using an electric or ultrasonic treatment tool in combination with an endoscope have been widely used as a means for performing treatment by being inserted into an abdominal cavity or a joint cavity. . Further, a treatment system using a treatment instrument that is not transendoscopic is also widely used. In these treatment systems, for example, using ultrasonic vibration, the treatment tool is vibrated to cut and coagulate the living tissue, an ultrasonic coagulation incision tool that coagulates, or a living tissue to be treated by a thermal action using high-frequency power. There are an electric scalpel that performs incision and coagulation, and a power treatment tool that crushes unnecessary living tissue finely by rotational force.

[0003] Such a conventional treatment instrument is improved in operability by making it battery-operated and wireless, as in the case of a power treatment instrument described in Japanese Patent Publication No. 2-43501, for example. A device that turns on and off with a drive switch has been proposed.

[0004]

However, for a treatment tool such as a battery-powered ultrasonic coagulation incision tool that requires operation of the handle for treatment, the operation of the handle and the operation of the drive switch are separately performed. Must be done,
There was a problem that the operation became complicated.

Further, when the treatment is completed, the treatment tool is driven for a period of time until the drive switch is turned off, so that if the state lasts for a long time, the battery is greatly consumed, and the battery runs out during the operation of the treatment tool. And treatment may be impossible.

The present invention has been made in view of these circumstances, and controls the energy supply to the treatment section by operating the handle of the operation section to perform treatment only when necessary, It is an object of the present invention to provide a treatment tool with improved performance.

[0007]

In order to achieve the above object, the present invention provides a treatment instrument having a treatment section for applying a treatment to a living tissue by applying energy thereto, comprising: an operation section for operating the treatment section; Energy supply means for supplying energy for treatment to the treatment section, a switch for controlling supply of energy to the treatment section, and operation of the operation section,
Interlocking means for interlockingly controlling the on / off of the switch. With this configuration, the operation of the handle of the operation unit is interlocked to control the energy supply to the treatment unit, and the treatment is performed only when necessary, and the operability is improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 3 show a first embodiment of the present invention.
FIG. 1 is a perspective view showing an external appearance of a battery-type ultrasonic coagulation and incision tool as a treatment tool, and FIG. 2 is an internal configuration of the ultrasonic coagulation and incision tool in FIG. FIG. 3 is an explanatory view showing another modified example of the ultrasonic coagulation and incision tool of FIG.

[0009] As shown in FIG.
An insertion section 20 having a treatment section 10 for performing treatment on a living tissue, an elongated tubular sheath 30 as a protection member of the insertion section 20, and a base end of the sheath 30 are detachably connected. An ultrasonic vibrator 51 having an operating unit 40 on the hand side and generating ultrasonic vibration; and an ultrasonic vibrator 51
Circuit 52 for performing oscillation amplification for driving the drive circuit, and a replaceable battery 53 as a drive power supply for the drive circuit 52
And a handpiece 50 incorporating the same. The ultrasonic coagulation / incision instrument 1 of the present embodiment is a battery-type treatment instrument having a built-in battery 53 as a driving power source.

The treatment section 10 of the insertion section 20 has a probe 11 as an energy supply means for supplying the ultrasonic vibration of the ultrasonic vibrator 51 connected to the proximal end to the distal end, and faces the probe 11. Moving part 12 as a gripping member for gripping and releasing the living tissue between the probe 11
And a tip connector 13 for supporting the movable portion 12 so as to be openable and closable with respect to the probe 11.

On the distal end side of the sheath 30, a through hole 30a having a substantially oval cross section is formed, and the treatment section 10 of the insertion section 20 projects from the through hole 30a. A rotation knob 31 is provided at the proximal end of the sheath 30 (the end on the operation unit 40 side).
Are integrally fixed. The rotary knob 31 is for rotating the movable portion 12 of the treatment section 10 about the center axis of the probe 11. The sheath 30 can be detached from the handpiece 50.

The operating section 40 is provided with a fixed handle 55 integrally formed with the operating section 40 and a movable operating handle 56 which can be moved toward and away from the fixed handle 55. A substantially U-shaped connecting arm 57 is provided at the upper end of the movable operation handle 56. A substantially central portion in the vertical direction of the connecting arm 57 is provided with a handle fulcrum pin 5.
It is rotatably mounted on the operation unit 40 via 7a. At the upper end of the connecting arm 57, a locking member 58 is provided.
It is provided rotatably in the direction of the central axis facing the window 59 formed on the 0 side surface. This locking body 5
8 is provided with a locking claw 58a. This locking claw 5
8a is a drive shaft 2 to be described later, which constitutes the insertion portion 20.
1 is detachably locked in the operation unit 40 (see FIG. 2).

As shown in FIG. 2, the probe 11 and the movable operation handle 5 projecting from the treatment section 10 are provided on a portion of the insertion section 20 covered by the sheath 30.
A drive shaft 21 for transmitting the gripping or releasing operation of the movable member 6 to the movable portion 12 is provided.

The proximal end of the probe 11 is integrally connected to the ultrasonic vibrator 51 in the operation section 40, and transmits the ultrasonic vibration generated by the ultrasonic vibrator 51 to the probe 11. The ultrasonic treatment can be performed on the diseased part in the body cavity by the probe 11.

The drive shaft 21 is an operating member for transmitting a gripping or releasing operation instruction from the movable operation handle 56 to the movable portion 12. Is a pin 13
a so as to be rotatable. This drive shaft 21
The rear end is inserted through the operation section 40 and connected to the movable operation handle 56. Therefore, by operating the movable operation handle 56 toward the fixed handle 55, the drive shaft 21 is retracted, and the movable section 12 is moved toward the probe 11. In this case, as the movable operation handle 56 is closed, the movable portion 12 is moved to the probe 11.
Of the movable part 1
A living tissue such as a blood vessel in a human body can be grasped between the probe 2 and the distal end of the probe 11. By driving the ultrasonic transducer 51 in this state, ultrasonic treatment can be performed on the living tissue between the probe 11 and the movable part 12.

In this embodiment, a switch is provided on the side of the fixed handle 55, and the switch is turned on and off by opening and closing the movable operation handle 56 with respect to the fixed handle 55, thereby driving the ultrasonic transducer 51. By controlling the power supply of the battery 53 to the circuit 52, an interlocking means for interlockingly controlling the supply of the ultrasonic vibration from the ultrasonic transducer 51 to the probe 11 is configured.

On the side of the fixed handle 55, a drive switch 61 which can be turned on and off by opening and closing the movable operation handle 56 and which is electrically connected to the drive circuit 52 is provided. Conversely, a drive switch 61 that can be turned on and off by opening and closing the movable operation handle 56 may be provided on the side of the movable operation handle 56.

The drive circuit 52 is electrically connected to the battery 53 and the ultrasonic vibrator 51 and receives an electric power from the battery 53 to generate a high-frequency signal (not shown). Mainly comprising an amplifier circuit (not shown) for power-amplifying the high-frequency signal and outputting a drive signal. The drive signal for the amplifier circuit is supplied to the ultrasonic vibrator 51 to drive the ultrasonic vibrator 51. It is supposed to.

The living tissue is coagulated and incised using the ultrasonic coagulation and incision instrument 1 configured as described above. Movable operation handle 56
The tissue is gripped between the probe 11 and the movable portion 12 of the treatment section 10 by the opening and closing operation of the treatment section 10, and the movable operation handle 56 turns on the drive switch 61 almost simultaneously, thereby supplying the power of the battery 53 to the drive circuit 52. Then, the ultrasonic oscillator 51 is driven, and the ultrasonic vibration generated by the ultrasonic oscillator 51 is transmitted by the probe 11 to coagulate and incise the living tissue.

Thus, the opening / closing operation of the movable operation handle 56 of the operation section 40 allows the on / off operation of the drive switch 61 to be interlocked, so that treatment is performed only when necessary and operability of the treatment tool is improved. The effect is obtained.

As shown in FIG. 3, in addition to the drive switch 61, a second switch 62 is
, The second switch 62 may be manually turned on, and then the drive switch 61 may be turned on by the movable operation handle 56. As a result, when an operation of merely holding the living tissue with the probe 11 and the movable portion 12 is required, even if the drive switch 61 is turned on by opening and closing the movable operation handle 56, the ultrasonic coagulation and incision treatment is performed. Can be created.

In the present embodiment, the ultrasonic coagulation incision tool is used as a treatment tool to perform ultrasonic coagulation and incision treatment on a living tissue. However, the present invention is not limited to this.
For example, a switch is provided in an operation unit such as an electric knife that incises and coagulates a living tissue by a heat action by high-frequency power, and by operating the operation unit, the switch is turned on and off to perform treatment on the living tissue. You may apply so that the energy supply to a treatment part may be interlocked and controlled.

Further, in the present embodiment, a battery-type treatment tool for performing various treatments on a living tissue using a battery as a drive power source has been described. However, the present invention is not limited to this. It is also possible to supply a drive signal or the like for driving the ultrasonic vibrator 51 from the apparatus and apply it to a treatment tool for performing various treatments. In that case,
For example, after turning on a switch of the external apparatus main body, the drive switch 61 may be turned on and off by opening and closing the movable operation handle 56.

Further, the treatment tool of the present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

(Second Embodiment) FIG. 4 is an explanatory view showing an operation section of an ultrasonic coagulation and incision tool as a treatment tool according to a second embodiment of the present invention.

In the first embodiment, a single battery 53 is used as a driving power source for the ultrasonic coagulation and incision tool as a treatment tool, and a driving circuit 52 for driving the ultrasonic vibrator 51 is used as a power source for the battery 53. By controlling the supply, the interlocking means for interlocking control of the supply of the ultrasonic vibration from the ultrasonic transducer 51 to the probe 11 is configured. In the present embodiment, at least the drive power supply is detachable and replaceable. The configuration is such that the power of the battery is supplied to the drive circuit 52 using two batteries. Other configurations are shown in FIG.
Therefore, the description is omitted, and the same components are denoted by the same reference numerals.

As shown in FIG. 4, for example, two batteries 71, 72 having lids 71a, 72a connected to a drive circuit 52 and made detachable are provided on the operation unit 40 of the ultrasonic coagulation and incision instrument. Provided. The battery 71 has, for example, a positive pole on the left side and a negative pole on the right side, while the battery 72 has a negative pole on the left side and a positive pole on the right.
1 and the battery 72 are connected in parallel.

Thus, even if one of the two batteries 71, 72, for example, the battery 71 is removed, the battery 72
Thus, power of the battery 53 can be supplied to the drive circuit 52.

In the present embodiment, two detachable and replaceable batteries are used as the drive power source to supply the battery power to the drive circuit 52. However, the present invention is not limited to this. A configuration may be used in which three or more detachable and replaceable batteries are used to supply power to the drive circuit 52 from the battery.

(Third Embodiment) FIG. 5 is an explanatory view showing a bipolar coagulation tool as a treatment tool according to a third embodiment of the present invention.

In the first and second embodiments, the ultrasonic coagulation / incision device 1 is used as a treatment device to perform ultrasonic coagulation / incision treatment on a living tissue.
Using a bipolar coagulation tool as a treatment tool, a high-frequency coagulation treatment is performed on a living tissue.

As shown in FIG. 5, the bipolar coagulator 10
Reference numeral 0 denotes a treatment section 110 for performing treatment on a living tissue, and a base end side of the treatment section 110, which has a grasping section 120 for grasping and operating as an operation section for operating the treatment section 110. Handpiece 150 including a high-frequency output circuit 151 for outputting a signal and a replaceable battery 152 as a driving power supply for driving the high-frequency output circuit 151.
It is mainly composed of The bipolar coagulation tool 100 of the present embodiment is a battery-type treatment tool having a built-in battery 152 as a driving power source.

A drive switch 121 is provided on one side of the grip 120 so as to be turned on / off by the grip operation of the grip 120. By holding the grasping portion 120, the living tissue is sandwiched by the treatment portion 110, and by turning on the drive switch 121, power is supplied from the battery 152 to the high-frequency output circuit 151, and the treatment portion 110 is subjected to coagulation treatment. By generating high-frequency energy, it is possible to perform high-frequency coagulation treatment on the sandwiched living tissue.

Thus, the on / off operation of the drive switch 121 can be interlocked by the gripping operation of the gripping portion 120, so that the coagulation treatment is performed only when necessary and the operability of the treatment tool is improved. obtain.

Although not shown, a second switch is provided on the operation unit 140 in addition to the drive switch 121, as in the case of the ultrasonic coagulation incision tool 1 described with reference to FIG. The drive switch 121 may be turned on by manually turning on the switch and then holding the grip 120. In this case, when an operation of merely grasping the living tissue with the treatment section 110 is required, the driving switch 12 is operated by the grasping operation of the grasping section 120.
Even if 1 is turned on, it is possible to create a state in which no coagulation treatment is performed.

Further, although not shown, similar to the ultrasonic coagulation incision tool 1 described with reference to FIG. 4, the battery power is supplied to the high-frequency output circuit 151 by using at least two detachable batteries as the driving power source. It is good also as a structure which performs.

Although the present embodiment has been described as a battery-type treatment tool for performing various treatments on a living tissue using a battery as a driving power source, the present invention is not limited to this. It is also possible to supply a driving power supply for driving the high-frequency output circuit 151 from the apparatus, and to apply the present invention to a treatment tool for performing various treatments. In this case, for example, the configuration may be such that the drive switch 121 is turned on and off by the gripping operation of the gripper 120 after the switch of the external apparatus main body is turned on.

Further, the treatment tool of the present invention is not limited to the above embodiment, but can be variously modified without departing from the gist of the present invention.

[Appendix] (Appendix 1) In a treatment tool having a treatment section for applying energy to a living tissue and performing a treatment, an operation section for operating the treatment section, and an energy for treatment in the treatment section. And an interlocking unit for interlockingly controlling the on / off of the switch by operating the operation unit by operating the operation unit. Treatment tool.

(Supplementary Item 2) In a treatment tool having a treatment unit provided with a battery as a drive power source and applying treatment to living tissue by applying energy, an operation unit for operating the treatment unit, and a treatment for the treatment unit Energy supply means for supplying energy for the operation, a switch for controlling the supply of energy to the treatment section, and an interlocking means for interlockingly controlling the on / off of the switch by operating the operation section,
A treatment tool comprising:

(Appendix 3) A second switch different from the switch
Wherein the second switch means is turned on and the switch is turned on, whereby energy can be supplied to the treatment section via the energy supply means. Or the treatment instrument according to 2.

(Additional Item 4) The treatment tool according to Additional Item 2, wherein the battery is replaceable.

(Additional Item 5) The treatment tool according to additional item 4, wherein a plurality of the batteries are provided, and each of the batteries is separately replaceable.

[0044]

As described above, according to the present invention, the supply of energy to the treatment section is controlled in an interlocked manner by operating the handle of the operation section, and treatment is performed only when necessary, and operability is improved. can do.

[Brief description of the drawings]

FIGS. 1 to 3 show a treatment tool according to a first embodiment of the present invention, and FIG. 1 is an external perspective view showing an ultrasonic coagulation incision tool as the treatment tool.

FIG. 2 is an explanatory view showing the internal configuration of the ultrasonic coagulation incision tool in FIG. 1;

FIG. 3 is an explanatory view showing another modified example of the ultrasonic coagulation incision tool in FIG. 2;

FIG. 4 is an explanatory view showing an operation unit of an ultrasonic coagulation and incision instrument as a treatment instrument according to a second embodiment of the present invention.

FIG. 5 is an explanatory view showing a bipolar coagulation tool as a treatment tool according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Ultrasonic coagulation incision tool 10, 110 ... Treatment part 11 ... Probe (energy supply means) 12 ... Movable part 40 ... Operating part 50 ... Handpiece 51 ... Ultrasonic vibrator 52 ... Drive circuit 53, 71, 72, 152 ... Battery 55 ... Fixed handle 56 ... Movable operation handle 61,121 ... Driving switch (switch) 62 ... Second switch 100 ... Bipolar coagulation tool 120 ... Grip part 151 ... High frequency output circuit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61B 17/39 310 320 (72) Inventor Akira Shiga 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optics Within the Industrial Co., Ltd. (72) Katsumi Sasaki 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Masaru Karasawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Inside Optical Industry Co., Ltd. (72) Inventor Takeo Takeo 2-43-2 Hatagaya, Shibuya-ku, Tokyo Orimus Optical Industry Co., Ltd. (72) Inventor Takeaki Nakamura 2-43-2 Hatagaya, Shibuya-ku, Tokyo Ori F-term (reference) in Compass Optical Industry Co., Ltd. 4C060 EE06 FF21 FF23 FF38 JJ17 JJ25 KK03 KK04 KK06 KK09 KK10 KK14 KK15 KK16 KK23 LL09

Claims (1)

[Claims] 1. A treatment tool having a treatment section for applying energy to a living tissue to perform treatment, an operation section for operating the treatment section, and energy supply means for supplying energy for treatment to the treatment section. A treatment tool, comprising: a switch for controlling supply of energy to the treatment section; and an interlocking means for interlockingly controlling on / off of the switch by operating the operation section.