JP2003111769A - Endo-therapy accessory system for endoscope - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide a treatment tool system for an endoscope that allows a surgeon to operate a treatment tool inserted into a body cavity alone. SOLUTION: An endoscope main body provided with a treatment instrument insertion channel opened at a distal end portion and a base portion of a body insertion portion: an insertion portion inserted into the treatment instrument insertion channel; and a movable portion provided at a distal end of the insertion portion. Part, a base provided at the rear end, a fixed part attached to the base, an operating member provided at the rear end of the base, a movable part and a fixed part connected, and the operating member and the fixed part A treatment tool having a drive wire disposed in the insertion portion for operating the movable part by a relative reciprocating motion of the treatment tool; a treatment tool drive unit comprising a member separate from the endoscope body and the treatment tool A fixing member for holding the fixing portion, a connecting member coupled to the operating member, and a switch for operating an actuator for reciprocating the operating member by moving the connecting member forward and backward are provided. Endoscope Treatment instrument system.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a treatment instrument system for an endoscope which is inserted into a body together with an insertion portion of an endoscope to treat an affected area.

[0002]

2. Description of the Related Art One of the modes of use of a medical endoscope is to insert the insertion portion of the endoscope into the body, and insert forceps from the treatment instrument insertion port of the endoscope to the treatment instrument insertion channel. Insert the tip of the forceps into the distal end of the forceps by operating the operating member provided at the proximal end of the forceps by projecting the tip of the forceps from the outlet of the treatment instrument insertion channel provided at the tip of the endoscope. The provided tip cup may be opened and closed to treat a diseased part in the body.

In such a case, since the operator inserts the insertion portion of the endoscope into the body, it is difficult for the operator to operate the operation member of the forceps. Usually, the operation is performed according to the instruction of the operator. I needed an assistant to operate the parts.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention that an operator who inserts an insertion portion of an endoscope into a body does not need any other assistant and can perform a body cavity alone through a treatment instrument insertion channel of the endoscope. An object of the present invention is to provide a treatment instrument system for an endoscope capable of operating a movable part of a treatment instrument such as forceps to be inserted therein.

[0005]

SUMMARY OF THE INVENTION The present invention provides an endoscope main body provided with a treatment instrument insertion channel whose both ends are opened at a treatment instrument outlet at a distal end of a body insertion portion and a treatment instrument insertion opening at a base: An insertion part that is inserted into the channel, a movable part that is provided at the tip of the insertion part and projects from the treatment tool outlet, a base part that is provided at the rear end of the insertion part, and the base part in the longitudinal direction of the base part. A fixed portion mounted so as to be relatively movable, an operation member provided at the rear end of the base portion and protruding from the treatment instrument insertion port, the movable portion and the fixed portion are connected, and the operation member and the fixed portion are connected. A treatment tool having a drive wire disposed in the insertion part so as to be movable relative to each other, the movable part being operated by relative reciprocal movement of the endoscope. Driving a treatment tool that is a separate member from the tool A knit is provided, and on the treatment instrument drive unit, a fixing member that holds the fixed portion of the treatment instrument that has emerged from the treatment instrument insertion opening of the endoscope body, a connecting member that is coupled to the operation member, and An actuator for moving the connecting member forward and backward to reciprocate the operating member, and a switch for operating the actuator are provided.

Preferably, the actuator is an electromagnetic solenoid.

Further, it is preferable to provide a rotary drive means for rotating the connecting member around the axis of the treatment instrument and a switch for operating the rotary drive means.

Further, it is preferable that the rotation driving means is a motor.

Further, it is preferable that at least one of the switch of the actuator and the switch of the rotation driving means is a foot switch.

In addition, the movable part is provided with two openable and closable tip cups, and each time the tip cup operates the switch once, it switches between an open state and a closed state in which the affected area is scooped out. preferable.

Further, the fixing portion is linked to the tip cup via the drive wire, reciprocates between an open position and a closed position, and moves to the open position to open the tip cup, Preferably, the tip cup is closed by moving to the closed position.

The operating member is an annular handle, the connecting member is a drive member having a recess formed in the upper end to which the handle fits, and the handle is provided on the upper surface of the drive member from the recess. It is possible to fix the handle pressing plate that prevents the handle pressing plate from coming out upward.

Further, the operating member is an annular handle, and the connecting member is an inward elastically urged elastic inwardly elastically connecting member elastically engaging the outer peripheral portion of the handle. You can

Further, the operating member may be an annular handle, and the connecting member may be an engaging member having an engaging groove formed on the upper surface for engaging the handle.

The fixing member has a downward fitting recess into which the fixing portion and the base are fitted from above, and is composed of a pair of supporting members arranged in the longitudinal direction of the treatment instrument. It is possible to provide a pair of flanges that abut on each of the opposing surfaces of the support member.

Further, it is preferable to provide a floating preventing means for preventing the fixed portion from moving upward with respect to the supporting member.

Further, the lifting preventing means is erected on the treatment instrument drive unit so as to be positioned on both sides of the treatment instrument, elastically biased toward each other, and at an intermediate portion in the vertical direction. It is preferable that the pair of elastic gripping members have an outwardly recessed engaging portion that is elastically engaged with both side surfaces of the fixing portion.

[0018]

DETAILED DESCRIPTION OF THE INVENTION A first embodiment of the present invention will be described with reference to FIGS. An electronic endoscope (endoscope) 1 shown in FIG. 1 is a medical endoscope, and includes an insertion portion 3 to be inserted into a body cavity and an operation portion 5 connected to a base side thereof.
have. The insertion portion 3 has a distal end portion 7 in order from the distal end side,
It has a bending portion 9 and a flexible tube portion 11, and the flexible tube portion 11 is connected to the operation portion 5 via a connecting portion 13.

The tip portion 7 has a tip portion main body (not shown) made of a hard member, and an objective lens holding hole, a light distribution lens holding hole, an air / water feeding channel outlet, and a treatment instrument insertion channel are provided in the tip portion main body. An outlet (treatment instrument outlet) 1a and the like are formed. An objective lens for image formation and a light distribution lens for illumination are held in the objective lens holding hole and the light distribution lens holding hole.

In the bending portion 9, a plurality of node rings (bending pieces) connected so as to be relatively rotatable about an axis orthogonal to the axis are provided.
They are arranged side by side in the axial direction. By rotating the left and right bending operation knobs 15A and the up and down bending operation knobs 15B provided on the operation unit 5, a plurality of bending operation wires (not shown) are pulled or loosened to relatively rotate a plurality of node rings. Then, the bending portion 9 is bent. Specifically, when the left / right bending operation knob 15A is rotated in the forward / reverse directions, the bending portion 9 is bent in the left / right direction via the pair of bending operation wires, and the up / down bending operation knob 15B is rotated in the forward / reverse directions. When operated, the bending portion 9 bends in the vertical direction via another pair of bending operation wires. Further, the bending state of the bending portion 9 can be fixed by operating the left and right lock knobs 17A and the up and down lock levers 17B.

From the operating section 5, the universal tube 19
Is extended, and a connector portion (not shown) for connecting to the processor is provided at the end portion of the universal tube 19. The connector part is provided with an end part of a signal transmission cable and a light guide (not shown), an inlet part of an air supply tube or a water supply tube, and the like.By connecting the connector part to a processor, these parts are It is connected to the image processing device on the processor side, the light source, and the air / water supply source.

In the tip portion 7, a CC is placed behind the objective lens.
D is provided, and the image of the observation object entered from the objective lens into the light receiving surface of the CCD is photoelectrically converted, and is arranged from the CCD to the connector section of the universal tube 19 via the insertion section 3 and the operation section 5. Further, it is sent to the processor as an electronic image through the above-mentioned signal transmission cable. The processor can display the electronic image on a monitor or record it on an image recording medium. The operation unit 5 is provided with a plurality of remote operation button switches 21 for performing remote operations related to image processing. In addition, illumination light from a light source provided in the processor is given to the light distribution lens via the above-described light guide provided from the connector portion of the universal tube 19 to the distal end portion 7 of the insertion portion 3.

The operation unit 5 is provided with an air / water supply button 29 in the vicinity of the remote operation button switch 21, and when the air / water supply button 29 is pressed, the above-mentioned air supply source or water supply source on the processor side is operated. The air or liquid sent to the air supply tube or the water supply tube is jetted from the air supply / water supply channel outlet of the tip portion 7 toward the objective lens.

At the connecting portion 13 of the electronic endoscope 1, a treatment instrument insertion port projection 2 for inserting a treatment instrument such as forceps or a high frequency cautery treatment instrument.
5, the treatment instrument insertion port 27 is provided with a forceps plug (not shown) that closes the opening of the treatment instrument insertion port 27 when the treatment instrument is not used. A treatment instrument insertion channel 1b is configured from the treatment instrument insertion opening 27 toward the inside of the endoscope, and the distal end portion of the treatment instrument insertion channel 1b has the above-described treatment instrument insertion channel outlet 1a formed in the distal end portion 7. Facing. A suction tube (not shown) is connected to the treatment instrument insertion channel 1b, and the suction tube is connected to a negative pressure source (suction source) (not shown) provided outside the electronic endoscope 1.

For the treatment instrument insertion channel 1b, a treatment instrument such as forceps or an induction cauterization treatment instrument is inserted through the treatment instrument insertion port 27, and a negative pressure is applied from a negative pressure source through a suction tube. When the suction button 23 provided on the operation unit 5 is pressed, the negative pressure source side conduit is communicated with the treatment instrument insertion channel 1b, and the negative pressure acts on the treatment instrument insertion channel 1b. A liquid such as a body fluid can be sucked from the tool insertion channel outlet 1a.

Next, the electronic endoscope 1 is inserted from the treatment instrument insertion port 27.
Forceps (treatment tool) 61 to be inserted inside the body, and the forceps 6
Forceps drive unit for operating 1 (treatment instrument drive unit)
U will be described.

The forceps 61 has a small-diameter cylindrical shape, and has a ring-shaped first finger-holding portion (operation portion) at the rear end of the operation portion main body (base portion) 62 having a circumferentially-oriented guide groove 62a formed in the longitudinal direction. Member) (handle) 63, and the operation unit main body 6
2, a large-diameter tubular operation slider (fixed portion) 64 is slidably fitted on the outside, and an attachment piece (not shown) protruding inward from the inner peripheral surface of the operation slider 64 is passed through the guide groove 62a to the operation portion main body. The insertion portion 65 is fitted inside the operation portion 62, and the insertion portion 65 is connected to the front end portion of the operation portion main body 62. Operation slider 64
A pair of front and rear ring-shaped second finger hooks (flange) 64a, 64b are fixed to the front and rear end surfaces of the.

The insertion portion 65 has a hollow distal end frame 67 having slits 67a on both left and right sides fixed to the distal end of a flexible coil sheath 66, and the outer peripheral surface of the coil sheath 66 is covered with a jacket tube S. It is a thing.

As shown in FIGS. 7 and 8, the proximal end portions of two distal end cups 68 are housed inside the distal end frame 67, and the intermediate portions of both distal end cups 68 are vertically overlapped with each other. The overlapping portion is pivotally attached to a fixing pin 67b that functions as a fixed fulcrum supported in the tip frame 67. The front ends of the two link members 69 are pivotally attached to the rear ends of both the tip cups 68 by connecting pins 69a, and the rear ends of both link members 69 are movable pins 6.
It is pivotally connected by 9b. An operation wire locking member 70 facing rearward is fixed to the movable pin 69b, and the operation wire locking member 70 penetrates the inside of the coil sheath 66 and has its rear end attached inside the operation portion main body 62. The front end of the drive wire W fixed to the piece is fixed.

The first finger hook 63 is attached to the operation slider 6
4 is pushed forward to the open position shown in FIGS. 3 and 5, the drive wire W pushes the movable pin 69b forward as shown in FIG.
8 is opened, and the first finger hook 63 is moved to the operation slider 64.
On the other hand, pulling backwards to the closed position shown in FIGS. 4 and 6,
As shown in FIG. 8, the drive wire W retracts the movable pin 69b, the link member 69 rotates, and the tip cup 68 closes.

Next, a forceps drive unit U for operating the forceps 61, which is a member separate from the electronic endoscope 1 and the forceps 61, will be described.

A fixed base 35 is immovably mounted on the upper surface of a desk 33 mounted on the floor 31. A front end portion (right end portion in FIG. 1) of the fixing base 35 is provided with a pair of front and rear support members (fixing members) 37 and 39 having downward fitting recesses 37a and 39a provided thereon. A friction reducing member 41 having an upper surface made of a low friction material such as polytetrafluoroethylene is fixed to the rear of the support members 37 and 39 on the upper surface of the table 35 (left side in FIG. 1).

Further, the friction reducing member 41 on the upper surface of the fixed table 35.
An electromagnetic solenoid (actuator) 43 is fixed immediately after, and a downward screw hole 47 is formed on the upper surface of a front end portion of a rod-shaped moving member 45 provided on the electromagnetic solenoid 43 and movable back and forth. The drive member (coupling member) 49 is fixed, and the drive member 49 is the friction reducing member 41.
Is placed on the upper surface of. The electromagnetic solenoid 43 moves the moving member 45 every time the foot switch 57 described later is stepped on once.
3 is switched to a driving state in which it is moved forward to the position shown in FIG. 3 and a non-driving state in which it is moved backward to the position shown in FIG.

A control circuit portion 53 having a main power switch 51 is further provided on the upper surface of the fixed base 35, and the control circuit portion 53 is connected to the electromagnetic solenoid 43 via a cable 55.
It is connected to the.

The control circuit section 53 is connected to a foot switch (switch) 57 mounted on the floor surface 31 via a cable 59. Each time the main power switch 51 is turned on and the foot switch 57 is stepped on once, the control circuit section 53
Sends a signal to the electromagnetic solenoid 43, and the electromagnetic solenoid 43 switches between the driving state shown in FIG. 3 and the non-driving state shown in FIG. When the main power switch 51 is turned off,
The electromagnetic solenoid 43 is held in the non-driving state shown in FIG.

The desk 33, the fixed base 35, the electromagnetic solenoid 43, the control circuit section 53, the foot switch 57, which are described above,
The cables 55 and 59 form a forceps drive unit U.

As shown in FIGS. 2 to 4, the front portion of the operation slider 64 of the forceps 61 is the fitting recess 37 of the support member 37.
a, the operation portion main body 62 is the fitting recess 39a of the support member 39.
The pair of front and rear second finger hooks 64a and 64b are brought into contact with the facing surfaces of the front and rear support members 37 and 39, whereby the forward and backward movement of the forceps 61 with respect to the fixed base 35 is restricted. There is.

An annular first finger hooking portion 63 is fitted in an annular step portion (recess) 49a formed on the upper part of the driving member 49, and the upper surfaces of the driving member 49 and the first finger hooking portion 63 are covered. The fixing screw 73 that penetrates the center of the first finger-holding portion pressing plate (handle pressing plate) 71 that is circular in plan view
By being screwed into the screw hole 47 of the driving member 49, the first
The finger hooking portion 63 and the driving member 49 are connected, and the first finger hooking portion 63 and the moving member 45 are integrated.

Next, the operation of the endoscopic treatment instrument system having the above-described configuration will be described.

First, the main power switch is turned on, and then the operator grasps the electronic endoscope 1 by hand to insert the insertion portion 3 of the electronic endoscope 1.
Is inserted into the body cavity of the patient, and the tip portion 7 thereof is brought close to the affected area. Then, as shown in FIG. 1, with the distal end cup 68 closed, the insertion portion 65 of the forceps 61 is inserted into the electronic endoscope 1 from the treatment instrument insertion opening 27, and the treatment instrument insertion channel 1b is inserted. The channel exit 1 a is projected to the outside of the electronic endoscope 1.

The operator steps on the foot switch 57 once,
The electromagnetic solenoid 43 is driven and the tip cup 68
When is opened, the tip cup 68 is brought close to the affected area. In this state, when the operator steps on the foot switch 57 again, the electromagnetic solenoid 43 is brought into a non-driving state, the distal end cup 68 is closed, and the distal end cup 68 scoops a part of the affected part from the body, and two affected parts are cut. Gripped between the tip cups 68.

After this, the operator takes out the forceps 61 from the electronic endoscope 1, puts the tip end of the forceps 61 in a container (not shown), and depresses the foot switch 57 once. The affected part falls from the tip cup 68 into the container.

According to this embodiment as described above, the forceps 6 can be operated by the operator stepping on the foot switch 57 with his / her own foot.
Since the opening / closing operation of the distal end cup 68 of No. 1 can be easily performed, the operator can simultaneously operate the electronic endoscope 1 and the forceps 61 at the same time without requiring an assistant.

The actuating system for the forceps 61 described above has the advantage that the existing forceps 61 can be used.

Next, FIG. 9 shows the second embodiment of the present invention.
It will be described with reference to FIGS. The same members as those in the first embodiment will be denoted by the same reference numerals and detailed description thereof will be omitted.

The fixed base 35 is provided with a pair of screw holes 75 located on the left and right sides of the support members 37 and 39. The upper surface of the operation slider 64 is covered with a pressing plate (lifting prevention means) 77 having a substantially inverted V shape in a front view, and screws 79 penetrating both left and right ends of the pressing plate 77 are screw holes 7.
5 is screwed together.

The electromagnetic solenoid 43 is immovably mounted on the upper surface of the fixed base 35 via a spacer 81. At the front end of the moving member 45, a C-shape in a plan view is formed, and an elastic connecting member (connecting member) 83 elastically biased inward is fixed, and the elastic connecting member 83 is once expanded outward. After the first finger hooking portion 63 is positioned inside the elastic connecting member 83, the elastic connecting member 83 is elastically returned inward and elastically engaged with the outer peripheral portion of the first finger hooking portion 63, thereby elastically connecting the first finger hooking portion 63. The member 83 and the first finger hooking portion 63 are combined, and the first finger hooking portion 63 and the moving member 45 are integrated.

According to such an embodiment, the pressing plate 7
Since the lifting of the forceps 61 can be prevented by the forceps 61, the forceps 61 prevents the forceps 61 from being used while the forceps 61 are being used.
It is possible to more reliably prevent the vehicle from coming off.

Further, the elastic connecting member 83 is elastically engaged with the outer peripheral portion of the first finger hooking portion 63, so that the moving member 45 and the first finger hooking portion 63 are elastically engaged.
Since the finger hooking portion 63 is integrated, the coupling structure of the moving member 45 and the first finger hooking portion 63 is simplified as compared with the first embodiment. Further, the elastic connecting member 83 is expanded outward so that the first finger-holding portion 6 is provided inside the elastic connecting member 83.
The elastic connecting member 83 and the first finger-holding portion 63 can be easily attached and detached only by taking in and out 3.

Next, a third embodiment of the present invention will be described with reference to FIGS. The same members as those in the first embodiment will be denoted by the same reference numerals and detailed description thereof will be omitted.

The front and rear support members 3 are provided on the upper surface of the fixed base 35.
A pair of left and right elastic gripping members (floating prevention means) 85, which are located between 7 and 39, are provided upright. The elastic gripping member 85 has an engaging portion 87 that bends outward at the center in the up-down direction, and an expanding portion 89 that bends outward at the upper end thereof. The left and right elastic gripping members 85 are elastically biased toward each other. Forceps 6
The operation slider 64 of No. 1 is pressed downward from above to the expansion portions 89 of the left and right elastic gripping members 85 to elastically deform the left and right elastic gripping members 85 outward, and the operation slider 64 and the operation section main body 62 are moved back and forth. Support members 37, 39 of
When the left and right elastic gripping members 85 elastically return to the inside, the left and right engaging portions 87 are engaged with the operation slider 6.
4 are elastically engaged with both side surfaces.

At the front end of the moving member 45, an engaging member (coupling member) 93 having a downward engaging groove 91 formed on the upper surface is fixed. The rear end of the first finger hook 63 is engaged with the engaging groove 91 from above, and the first finger hook 63 and the moving member 45 are integrated.

According to this embodiment, the left and right elastic gripping members 85 can prevent the forceps 61 from being lifted up, so that the forceps 61 can be more reliably prevented from coming out of the support members 37 and 39 during use of the forceps 61. The forceps 61 can be easily attached to and detached from the elastic gripping member 85.

In addition, the first finger hooking portion 63 is provided on the engaging member 93.
Since the moving member 45 and the first finger hooking portion 63 are integrated by only engaging the rear end portion, the connecting structure of the moving member 45 and the first finger hooking portion 63 is different from that of the first embodiment. It has been simplified. Further, the first finger hook 63 is provided in the engagement groove 9
The engaging member 93 and the first finger-holding portion 6 can be simply attached to or detached from the engaging member 93.
The connection and disconnection of 3 can be easily performed.

Finally, a fourth embodiment of the present invention will be described with reference to FIGS. The third
The same members as those of the embodiment of
Detailed description thereof will be omitted.

A motor (rotational driving means) M is mounted on the rear end of the fixed base 35, and a tip end of the rotary shaft M1 protruding from the front surface of the motor M has an L-shaped holding base in side view. 97 is fixed, and the solenoid 43 is attached to the upper surface of the holding base 97.
Is fixed. At the front end of the moving member 45, a coupling member (coupling member) 101 having a through hole 99 that fits into the rear end of the first finger hook 63 is fixed.

One end of a cable 103, which is different from the cable 59, is connected to the control circuit section 53 (not shown in FIGS. 15 to 17), and a foot switch (switch) 105 is connected to the other end of the cable 103. It is provided. While the operator is stepping on the foot switch 105, the control circuit section 5
A signal is sent from 3 to the motor M to rotate the motor M, and when the operator releases the foot switch 105, the rotation of the motor M stops. Therefore, the operator operates the foot switch 105
The rotary shaft M1 of the motor M can be rotated by a predetermined angle in a certain direction by operating (FIG. 17).
Shows a state in which the rotating shaft M1 is rotated by 90 °).

According to this embodiment, the operator is
By stepping on the foot switch 105 with your own foot, the rotational position of the tip cup 68 with respect to the axis of the insertion portion 65
It can be adjusted freely without requiring an assistant, and by operating the foot switch 57 after that, the opening / closing operation of the tip cup 68 can be performed in an optimum state.

The present invention described above is not limited to the above embodiment, but can be applied to treatment tools other than the forceps 61, for example, an operating system such as a snare.
In addition, for example, the fixed base 3 of the first, third and fourth embodiments
5 can be provided with a pressing plate 77, and the fixing base 35 of the first and second embodiments can be provided with an elastic gripping member 85. Further, instead of the electromagnetic solenoid 43, an actuator such as a motor can be used.

[0060]

According to the present invention, the operator who inserts the insertion portion of the endoscope into the body does not require any other assistant, and the forceps inserted into the endoscope alone is used. You will be able to operate the movable part.

[Brief description of drawings]

FIG. 1 is an overall view of a treatment tool system for an endoscope according to a first embodiment of the present invention.

FIG. 2 is also a plan view of the endoscopic treatment tool system.

FIG. 3 is likewise a side view of the main part of the endoscopic treatment device system with the forceps tip open.

FIG. 4 is a side view similar to FIG. 3 with the distal end of the forceps closed.

FIG. 5 is likewise a plan view of the forceps in the open state.

FIG. 6 is likewise a plan view of the forceps in a closed state.

FIG. 7 is likewise a cross-sectional plan view of the tip of the forceps in the open state.

FIG. 8 is likewise a cross-sectional plan view of the tip portion of the forceps in the closed state.

FIG. 9 is a plan view of a main part of a treatment instrument system for an endoscope according to a second embodiment of the present invention.

FIG. 10 is likewise a vertical sectional front view taken along line XX of FIG.

11 is a side view of the main part of the treatment instrument system for an endoscope as seen in the direction of the arrow XI in FIG. 9.

FIG. 12 is a plan view of a main part of a treatment instrument system for an endoscope according to a third embodiment of the present invention.

FIG. 13 is likewise a vertical sectional front view taken along line XIII-XIII in FIG. 12.

14 is a side view of the main part of the treatment instrument system for an endoscope as seen in the direction of the arrow XIV in FIG.

FIG. 15 is a plan view of a treatment instrument system for an endoscope according to a fourth embodiment of the present invention.

FIG. 16 is likewise a side view of the main part of the treatment instrument system for an endoscope.

FIG. 17 is also a main part of a treatment tool system for an endoscope,
It is a side view which shows the state which forceps rotated 90 degrees.

[Explanation of symbols]

1 Electronic endoscope (endoscope) 1a Treatment instrument insertion channel outlet (treatment instrument outlet) 1b Treatment instrument insertion channel 3 Insert 5 Operation part 7 Tip 9 curved part 11 Flexible tube 13 Connection 15A Left and right bending operation knob 15B Vertical bending operation knob 17A Left and right lock knob 17B Vertical lock lever 19 universal tubes 21 Remote control button switch 23 Suction button 25 Treatment tool insertion port protrusion 27 Treatment tool insertion port 29 Air / water button 31 floor 33 desks 35 fixed base 37 Support member (fixing member) 39 Support member (fixing member) 41 Friction reducing member 43 Electromagnetic solenoid (actuator) 45 Moving member 47 screw holes 49 Drive member (connecting member) 49a Annular step (recess) 51 Main power switch 53 Control circuit section 55 cable 57 foot switch (switch) 59 cable 61 forceps (treatment tool) 62 Main body of operation unit (base) 62a guide groove 63 First finger hook (operation member) (handle) 64 Operation slider (fixed part) 64a Second finger hook (flange) 64b Second finger hook (flange) 65 Insert 66 coil sheath 67 Tip frame 67a slit 67b Fixed pin 68 Tip cup 69 Link member 69a connecting pin 69b Movable pin 70 Operation wire locking member 71 First finger-holding part pressing plate (handle pressing plate) 73 fixing screw 75 screw holes 77 Press plate (lifting prevention means) 79 screws 81 Spacer 83 Elastic connection member (connection member) 85 Elastic gripping member (lifting prevention means) 87 Engagement part 89 knob 91 Engagement groove 93 Engaging member (connecting member) 97 holding table 99 connecting groove 101 connecting member (connecting member) 103 cable 105 foot switch (switch) M motor (rotation drive means) M1 rotation axis S mantle U Forceps drive unit (treatment tool drive unit) W operation wire

Claims (13)

[Claims] 1. An endoscope main body having a treatment instrument insertion channel whose both ends are opened at a treatment instrument outlet at a distal end of a body insertion section and a treatment instrument insertion port at a base: and an endoscope body inserted through the treatment instrument insertion channel. Insertion part, a movable part provided at the tip of the insertion part and protruding from the treatment tool outlet, a base part provided at the rear end of the insertion part, and a relative movement to the base part in the longitudinal direction of the base part. The mounted fixed part, the operation member provided at the rear end of the base part and protruding from the treatment tool insertion port, the movable part and the fixed part are connected to each other, and the relative position of the operation member and the fixed part is fixed. A treatment instrument system for an endoscope, comprising: a treatment instrument having a drive wire that is movable in a reciprocating manner and is movably arranged in the insertion portion; A treatment instrument drive unit consisting of members On the treatment instrument drive unit, a fixing member that holds the fixed portion of the treatment instrument that has come out of the treatment instrument insertion opening of the endoscope body, a coupling member that is coupled to the operation member, and the coupling member. A treatment instrument system for an endoscope, comprising: an actuator for moving the operating member back and forth to reciprocate; and a switch for operating the actuator. 2. The endoscopic treatment instrument system according to claim 1, wherein the actuator is an electromagnetic solenoid. 3. The treatment instrument system for an endoscope according to claim 1, further comprising a rotation drive means for rotating the connecting member around an axis of the treatment instrument and a switch for operating the rotation drive means. Treatment system for endoscopes. 4. The treatment instrument system for an endoscope according to claim 3, wherein the rotation driving means is a motor. 5. The endoscopic treatment instrument system according to any one of claims 1 to 4, wherein at least one of the switch of the actuator and the switch of the rotation driving means is a foot switch. Fixture system. 6. The treatment instrument system for an endoscope according to claim 1, wherein the movable portion includes two openable and closable tip cups, and the tip cups include the switch. An endoscopic treatment instrument system that switches between an open state and a closed state in which the affected area is scooped out each time the operation is performed. 7. The treatment instrument system for an endoscope according to claim 6, wherein the fixing portion is linked to the distal end cup via the drive wire and reciprocates between an open position and a closed position, A treatment instrument system for an endoscope, wherein the distal end cup is opened by moving to the open position, and the distal end cup is closed by moving to the closed position. 8. The treatment instrument system for an endoscope according to claim 1, wherein the operation member is an annular handle, and the connecting member has the handle fitted to an upper end portion thereof. An endoscopic treatment instrument system comprising a drive member having a recess formed therein, and a handle pressing plate for preventing the handle from coming out of the recess above the drive member. 9. The endoscopic treatment device system according to claim 1, wherein the operating member is an annular handle, and the connecting member is elastically engaged with an outer peripheral portion of the handle. Inwardly elastically urged substantially in plan view C
A treatment instrument system for an endoscope, which is a character-shaped elastic connecting member. 10. The endoscopic treatment tool system according to claim 1, wherein the operating member is an annular handle, and the connecting member has an upper surface to which the handle fits. A treatment instrument system for an endoscope, which is an engagement member having a mating groove formed therein. 11. The treatment instrument system for an endoscope according to claim 1, wherein the fixing member has a downward fitting concave portion into which the fixing portion and the base portion are fitted from above. A treatment instrument system for an endoscope, comprising a pair of support members arranged in a longitudinal direction of the treatment instrument, wherein the fixing portion is provided with a pair of flanges that abut against respective opposing surfaces of the pair of support members. 12. The treatment instrument system for an endoscope according to claim 11, further comprising a floating prevention means for preventing the fixed portion from moving upward with respect to the support member. . 13. The treatment instrument system for an endoscope according to claim 12, wherein the lifting prevention means is erected on the treatment instrument drive unit so as to be located on both sides of the treatment instrument, and is close to each other. A treatment instrument for an endoscope, which is a pair of elastic gripping members that are elastically urged to the upper and lower portions, and are formed with an engaging portion that is recessed outward in a vertical middle portion and elastically engages with both side surfaces of the fixing portion. system.