JP2000014634A - Endoscope system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope system which can be placed in a predetermined position without damaging a treatment instrument and which facilitates the operation of an endoscope and the endoscopic operation of the treatment instrument. SOLUTION: In an endoscope system, a wire channel 24 formed at an end portion is formed up to the control part 5 of an endoscope and the rear end portion of a transmission wire 4 passed into the wire channel 24 is secured to the freely rotating shank 51a of a rotary operation wheel 51 serving as an operation means for generating an operating force for operating the treatment means of an endoscope module provided within the control part 5. The rotary operation wheel 51 is provided with a fixed knob 51b serving as a lock mechanism capable of setting the operating condition of the wheel selectively to a fixed condition or open condition. Thus, by rotating the rotary operation wheel 51, the transmission wire 4 is moved back and forth and the fixed knob 51b is operated to fix the transmission wire 4 in the desired position to maintain the operating condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope system provided with an endoscope used in an endoscopy or an operation under an endoscope, and equipment for treatment.

[0002]

2. Description of the Related Art Conventionally, by inserting an elongated insertion portion into a body cavity, an organ or the like in the body cavity can be observed, and if necessary, a treatment device (also referred to as a treatment tool) inserted into a treatment channel. Medical endoscopes capable of performing various types of treatments using a medical device are widely used.

[0003] For example, in an endoscope which is orally inserted to treat a digestive organ in a body cavity, a lumen called an endoscope treatment channel provided inside the endoscope is provided.
The treatment is being performed by inserting treatment equipment. The treatment instrument channel of the endoscope is an elongated lumen having a diameter of about 3 mm and a length of about 2 m. Therefore, the treatment instrument channel is elongated so that a treatment instrument can be inserted into the elongated treatment channel. It has a structure. For this reason, when inserting this slender treatment equipment into the treatment channel of the endoscope,
The clinician had to be very careful to insert the procedural equipment into the procedural channel because of the risk of breakage.

[0004] Conventionally, when performing endoscopic procedures, the endoscope and the treatment equipment are independent of each other, so that a medical technician can use both the endoscope and the treatment equipment. Skillful operation techniques were required, such as complicated operations using both hands, and operations performed by several persons, including an attendant, with predetermined roles.

Further, after the treatment, it is necessary to perform post-treatment such as washing and disinfection of the treatment equipment, and the work of washing and disinfecting the elongated treatment equipment without damaging it has been troublesome. . In addition, a large storage space is required to store and manage the equipment for treatment after washing.

For example, Japanese Unexamined Patent Publication (Kokai) No. 64-80335 discloses that in order to prevent damage during insertion of the treatment tool, a member having an appropriate elasticity is used for treatment equipment or the tip shape is made smooth. This shows an endoscope that improves the insertability.

In the case of performing a treatment endoscopically, the operation section of the treatment equipment is connected and fixed to the endoscope operation section in order to facilitate the operation of the endoscope and the treatment equipment. There was something like that.

[0008]

However, as shown in the above-mentioned Japanese Patent Application Laid-Open No. 64-80335, improving the material and making the shape curved does not solve the fundamental problem. When inserting the equipment into the endoscope, it was necessary to insert the elongated treatment equipment into the treatment channel of the endoscope with great care in order to prevent the treatment equipment from being damaged. . In addition, a skilled operating technique is required to operate the endoscope and the treatment tool simultaneously. In addition, a large space was required for storage management.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can be disposed at a predetermined position without damaging a treatment tool, and can easily operate an endoscope and treatment equipment under an endoscope. It is intended to provide a simple endoscope system.

[0010]

An endoscope system according to the present invention is capable of attaching an endoscope module provided with at least one or more treatment means to a distal end portion of the endoscope via attachment / detachment means. An endoscope system, wherein the endoscope is provided with operation means for operating the treatment means of the endoscope module at hand.

According to this configuration, first, the endoscope module having the treatment means is attached to the distal end of the endoscope, and in this state, the endoscope is operated by operating the operation means provided on the endoscope. By operating the treatment means of the mirror module, an endoscopic treatment can be performed. Next, by removing the endoscope module from the end of the endoscope, washing, disinfection, and sterilization can be easily performed, and subsequent storage can be easily performed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 5 relate to a first embodiment of the present invention, and FIG. 1 shows an example of a distal end portion of an endoscope constituting an endoscope system and an endoscope module attached to the endoscope. FIG. 2 is a cross-sectional view illustrating a configuration of a ligation module, FIG. 2 is an explanatory diagram illustrating a configuration of an operation unit of the endoscope, and FIG. 3 is an explanatory diagram illustrating a state where the ligation module is attached to a distal end portion of the endoscope. FIG. 4 is a view for explaining the operation of the endoscope to which the ligation module is attached, and FIG.

As shown in FIG. 1, an endoscope system 1 according to the present embodiment includes an endoscope 2 and a ligation which is one of endoscope modules detachable from a distal end portion 21 of the endoscope 2. Module 3.

The distal end portion 21 of the endoscope 2 has a distal projecting portion 22 also serving as an attaching / detaching means for attaching and detaching the ligating module 3, and a fixing attaching / detaching hole 23 having a locking hole portion 23a; It has a wire channel 24 through which a transmission wire 4 for transmitting a force is inserted so as to be able to move forward and backward. A first connecting member 41 serving as an attaching / detaching means and an operating force transmitting means is fixedly mounted on a distal end portion of the transmitting wire 4. The inner peripheral surface of the first connecting member 41 is A female screw 42 is formed.

The ligating module 3 is made of a hard and transparent resin member and is formed in a substantially convex shape, and has a small diameter and a connecting portion 31 serving as a detachable portion facing the distal end portion 21 of the endoscope 2.
A main body 30 having a cap portion 32 having a slightly larger diameter than the connecting portion 31; a ligating elastic ring 34 and a ring operating wire 3 arranged on the outer peripheral surface of the cap portion 32;
5 and a ligating tool 33 serving as a treatment means. At the base end of the ring operation wire 35, a substantially cylindrical second connecting member 37 serving as an attaching / detaching means and an operating force transmitting means is fixedly mounted. Is formed with a male screw 38 that meshes with the female screw 42 of the first connecting member 41.

The cap 32 of the main body 30 of the ligating module 3 is formed with a treatment cavity 32b having an opening 32a on the distal end side so that an affected part can be arranged. The connecting portion 31 is provided with a protrusion arranging hole 31a into which the tip projecting portion 22 of the tip portion 21 is fitted, and a locking claw portion 36a serving as an attaching / detaching means to be engaged with the fixing / attaching hole 23. A detachable projection 36 provided at the distal end and a wire insertion hole 31b through which the ring operation wire 35 is inserted so as to be able to advance and retreat are formed. This wire insertion hole 31b
Communicates with the treatment cavity 32b, and the protrusion arrangement hole 31a is connected to the treatment cavity 32b by the communication hole 3b.
2c.

The ring operation wire 35 is formed by twisting a plurality of wire wires 35a and 35b, and the ring operation wire 35 passing through the wire insertion hole 31b is connected to the wire wire inside the treatment cavity 32b. 35a, 3
5b. The distal ends of the wire wires 35a and 35b divided in the treatment cavity 32b extend so as to be arranged on the outer peripheral surface of the cap portion 32.

A plurality of guides 35c are provided at equal intervals at the ends of the wire lines 35a and 35b, respectively.
The elastic ring 34 is disposed at a predetermined position with respect to the guide portion 35c in a state where the elastic ring 34 is disposed on the outer peripheral surface of the second member 2.

As shown in FIG. 2, a wire channel 24 formed at the distal end portion 21 is provided with an operating portion 5 of the endoscope 2.
The base end of the transmission wire 4 inserted through the wire channel 24 is used to generate an operation force for operating the treatment means of the endoscope module provided in the operation section 5. Rotating operation handle 5 as operating means
It is fixed to one rotatable shaft 51a. The rotary operation handle 51 is provided with a fixed knob 51b which is a lock mechanism capable of selectively setting the handle operation state to a fixed state or an open state. Thus, by rotating the rotation operation handle 51, the transmission wire 4 can be moved forward and backward, and the transmission wire 4 that moves forward and backward by operating the fixed knob 51b can be moved to a desired position. The operation state can be kept fixed.

The wire channel 24 communicates with an air / liquid supply channel 53 having an opening at a side portion of the operation unit 5 at an intermediate portion of the channel 24. At the opening end 52, a base 55 having a packing 54 provided therein is provided. The base 55, the air / liquid feeding channel 53 and the wire channel 24 are used to supply air / gas to guide liquid or gas. A liquid feed channel is formed.

The endoscope 2 includes an optical lens (not shown), an optical transmission means that allows an optical image input through the optical lens to be observed at the endoscope hand side, and a distal end in a desired direction. A bending portion for bending the operating portion 5
An operation knob (not shown) for performing a bending operation on the bending portion is provided near the rotation operation handle 51.

The operation of the endoscope system 1 configured as described above will be described. First, before inserting the endoscope 2 into the body cavity, the ligation module 3 to be attached to the distal end portion 21 of the endoscope 2 is taken out of the endoscope module stored in the storage box. The female screw 42 of the first connection member 41 fixed to the distal end of the transmission wire 4 of the endoscope 2 and the second connection fixed to the proximal end of the operation wire 35 of the ligating module 3. The male screw 38 of the member 37 is screwed and fixed, and then the mounting / removing projection 36 of the main body 30 is fixed to the fixing / removing hole 23.
And the positioning of the distal end protruding portion 22 and the protruding portion locating hole 31a is performed, and the ligating module 3 and the endoscope 2 move in the approaching direction. Then, the tip projecting portion 22 is fitted into the projecting portion arranging hole 31a and arranged at a predetermined position, and the locking claw portion 36a engages with the locking hole portion 23a, as shown in FIG. The ligation module 3 is integrally fixed to the distal end 21 of the endoscope 2.

Next, the ligation module 3 is integrally fixed to the distal end portion 21, and the endoscope 2 is inserted into the body cavity in the vicinity of the examination site with the rotation handle 51 fixed by the fixing knob 51b. Then, the opening portion 32a provided on the distal end side of the cap portion 32 of the ligation module 3 is moved until it faces the diseased part 10 in the body cavity.

Next, the opening end 5 of the operation section 5 of the endoscope 2
Suction is applied by a suction device (not shown) through a mouthpiece 55 provided in the device 2. Then, the base 55, the air / liquid feeding channel 53, and the wire channel 2
The diseased part 10 is sucked into the treatment cavity 32b of the cap part 32 by suctioning the air in the body cavity through the air / liquid supply channel formed by 4.

Here, after the fixed knob 51b provided on the operation section 5 of the endoscope 2 is opened, the rotation operation handle 51
Is operated to wind up the transmission wire 4. As a result, the transmission wire 4 advances and retreats, and the ring operation wire 35 connected to the transmission wire 4 moves toward the hand side, so that the guiding portion 35c provided at the distal end moves, The elastic ring 34 disposed on the outer peripheral surface of the cap portion 32 is gradually moved by being pushed by the guide portion 35c. Then, as shown in FIG. 4, the elastic ring 34 falls off from the front of the main body 30 and contracts, so that the affected area 10 sucked into the treatment cavity 32b.
Is ligated by its own elastic force. here,
The fixing knob 51b is again fixed.

Subsequently, as shown in FIG. 5, the endoscope 2 is not pulled out of the body and is opposed to the affected part 10 as shown by an arrow, and the above operation is repeated, so that the elastic rings 34 are formed at a plurality of places. Can be ligated.

When a procedure other than ligation is subsequently performed, the endoscope 2 is removed from the body cavity. Then, the ligating module 3 and the distal end portion 21 of the endoscope 2 are moved in a direction in which the locking claw portion 36a engaged with the locking hole portion 23a of the fixing / removing hole 23 is pushed in while being pushed. By moving the ligation module 3, the distal end portion 21 of the endoscope 2 is moved.
Separate from

As described above, instead of inserting the slender treatment instrument into the treatment channel of the endoscope, a small endoscope module having treatment means is configured to be detachable from the distal end of the endoscope. In addition, by providing the connecting means for connecting and fixing the transmission wire passing through the endoscope and the operating means for operating the treatment means provided in each module, the connection means is generated when the treatment instrument is inserted into the channel. In addition to eliminating the damage of the treatment tool, the storage space for the endoscope module can be reduced. This greatly improves management of the treatment tool.

In addition, since a rotary operation handle for operating the treatment means of the endoscope module is provided in advance near an operation knob or the like provided on the operation section of the endoscope, the operation of the endoscope and the inside of the endoscope are controlled. The operation of the treatment means provided in the endoscope module can be easily performed.

Further, the rotation operation handle is provided with a fixed knob which enables the rotation state of the handle to be selectively set to a fixed state or an open state, thereby preventing the rotation operation handle from being erroneously operated. Can be prevented.

FIG. 6 is an explanatory view showing the configuration of a gripping module, which is another form of the endoscope module, and a distal end portion of the endoscope according to the second embodiment of the present invention. The endoscope module of the present embodiment is a holding module 6, and the holding module 6 is connected to a connecting portion 31 of a main body 30 of the ligating module 3 formed of a hard resin member into a substantially pipe shape. The module body 61 having substantially the same shape and, for example, 3
And a grasping tool 62 which is a treatment means having three grasping portions 63a, 63b, 63c.

In the module main body 61, a projecting portion locating hole 31a into which a projecting portion 22 of the distal end portion 21, which is a detachable portion facing the distal end portion 21 of the endoscope, is fitted.
And a locking claw 36a engaged with the fixing / removing hole 23.
A detachable projection 36 provided at the tip thereof;
a, 63b, 63c gripper operation wire 63
A wire insertion hole 31b through which the wire is inserted to be able to move forward and backward is formed. The wire insertion hole 31b is a through-hole, and the protrusion-arrangement hole 31a communicates with the outside through a communication hole 64. At the base end of the gripper operation wire 63, a substantially columnar second connection member 37, which is a detachable means similar to that provided at the base end of the ring operation wire 35, is fixed.

At the middle of the transmission wire 4 of the endoscope 2, a first connecting member 41 having a female screw 42 to which the male screw 38 of the second connecting member 37 is screwed and fixed is fixed to the distal end. A piston 65 having an outer dimension substantially in close contact with the outer peripheral surface of the wire channel 24 is fixedly provided, and the wire channel 24 is filled with a liquid 66 such as saline. The operation unit 5 of the endoscope 2 (not shown)
A liquid compressing means such as a syringe, for example, is connected to the wire channel 24 for supplying and sucking a liquid into the wire channel 24. Code 6
Reference numeral 7 denotes a suction pipe for performing suction. Other configurations are the same as those of the endoscope system shown in FIG. 1 described above, and the same members are denoted by the same reference numerals and description thereof will be omitted.

The operation of the endoscope system 1 configured as described above will be described. First, the female screw 42 at the distal end of the transmission wire 4 and the male screw 38 of the second connecting member 37 fixed to the proximal end of the gripping operation wire 63 of the gripping module 6 are screwed and fixed. Then, the mounting / removing projection 36 of the module main body 61 is arranged in the fixing / removing hole 23, and the distal end protruding part 22 and the protruding part locating hole 31a are aligned with each other. And move in the direction of approach. Then, the distal end protruding portion 22 is fitted into the protruding portion arranging hole 31a and is disposed at a predetermined position, and the locking claw portion 36a is engaged with the locking hole portion 23a, so that the grasping module 6 can be viewed from the inside. The mirror 2 is integrally fixed to the distal end 21.

Subsequently, the user operates the rotary operation handle 51 of the operation section 5 of the endoscope 2 to operate the holding section 63 of the holding module 6.
The a, 63b, and 63c are housed in the wire insertion hole 31b and the wire channel, inserted into a body cavity, and moved to a target site.

Then, by a liquid compression means (not shown),
By compressing the liquid, the gripping portions 63a, 63b, 63c are raised and lowered via the piston 65 and the transmission wire 4 to grip the object. In addition, if necessary, the suction pipe 67
More body fluid is sucked.

As described above, by using the fluid as the operating force for operating the gripping module, the operating force is reliably transmitted to the transmission wire 4 regardless of the bending state of the insertion section of the endoscope, and the gripping operation is performed. Can be performed reliably. In addition, by providing an independent suction conduit for the endoscope,
The suction operation can be performed reliably.

7 and 8 relate to an application example of the first embodiment. FIG. 7 is an explanatory view showing another configuration of a gripping module and an endoscope which are other forms of the endoscope module. FIG. 8 is a diagram showing the configuration of the operation unit of the endoscope. As shown in FIG. 7, in the present embodiment, the grip portions 63a, 63b, 63
c, the gripper operation wire 63 and the transmission wire 4 connected by the second connection member 37 and the first connection member 41 are inserted through the wire insertion tube 71 so as to be able to advance and retreat, and
This wire insertion tube 71 is connected to the wire channel 2
4 so that it can move forward and backward.

Then, as shown in FIG. 8, a pipe-shaped operation main body 72 which can freely advance and retreat to the operation section 5 and this operation main body 7
2 is provided with a knob 73 which is loosely fitted to the wire insertion tube 2.
The base end of the transmission wire 4 is fixed to the front end of the knob 73. For this reason, by inserting the operation main body 72, the distal end of the wire insertion tube 71 projects from the distal end surface of the module main body 61 attached to the distal end 21 of the endoscope 2. Other configurations and operations are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof will be omitted.

As described above, while the three gripping portions, the gripping portion operation wires, and the transmission wires are covered with the wire insertion tubes, the wire insertion tubes are provided so as to be able to advance and retreat with respect to the wire channel. A farther object can be gripped by operating the gripping part with the passage tube protruding from the distal end surface of the module main body. Other effects are similar to those of the above-described embodiment.

FIGS. 9 and 10 relate to another application example of the first embodiment, and FIG. 9 is an explanatory view showing the configuration of a cytodiagnosis module and an endoscope which are other forms of an endoscope module. FIG. 8 is a diagram showing the configuration of the operation unit of the endoscope. As shown in FIG. 9, in the present embodiment, a brush 68 is provided at a distal end of the transmission wire 4, and a second connection is provided in which a male screw 38 is provided at a base end of the transmission wire 4 protruding from the operation unit 5. A member 37 is fixed. Then, the second connecting member 3
A first connecting member 41 having a female screw 42 corresponding to the male screw 38 of No. 7 is fixed to the tip of a knob 73 loosely fitted to an operation main body 69 detachable from the operation section 5.

For this reason, the first connecting member 41 and the second connecting member 37 are screwed and fixed to connect the transmission wire 4 and the operation main body 72, and the knob 68 is rotated, whereby the brush 68 is rotated. Is rotated so that cells in the body can be attached to the brush 68.
Note that the cytodiagnosis module, the operation main body, and the knob are formed of a heat-resistant material, and can be heat-sterilized in an autoclave or the like. Other configurations, operations, and effects are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof will be omitted.

It should be noted that the present invention is not limited to only the above-described embodiments, but can be variously modified without departing from the gist of the invention.

[Appendix] According to the above-described embodiment of the present invention as described in detail above, the following configuration can be obtained.

(1) In an endoscope system in which an endoscope module provided with at least one or more treatment means can be freely attached to a distal end portion of the endoscope via attachment / detachment means, An endoscope system provided with operation means for operating the treatment means of the endoscope module at hand.

(2) The endoscope system according to appendix 1, wherein the operation means is provided in an operation section of the endoscope.

(3) The endoscope system according to appendix 2, wherein the operation means has a lock mechanism for fixing the treatment means.

(4) The endoscope system according to appendix 1, wherein the treatment means and the operation means are connected via an operation force transmission means.

(5) The endoscope system according to appendix 4, wherein the operating force transmitting means is a transmitting wire.

(6) The endoscope system according to appendix 4, wherein the operating force transmitting means comprises a liquid and a liquid compressing means.

(7) The endoscope system according to appendix 5, wherein a rotational force is transmitted by the operating force transmitting means.

(8) The endoscope system according to appendix 4, wherein the operation force transmitting means has an attaching / detaching means.

(9) The endoscope system according to appendix 8, wherein the attachment / detachment means is provided at a boundary between the treatment means and the transmission means.

(10) The endoscope system according to appendix 8, wherein the attachment / detachment means is provided at a boundary between the transmission means and the operation means.

(11) The operating force transmitting means of the endoscope is
5. The endoscope system according to claim 4, provided in the endoscope.

(12) The endoscope operating force transmitting means is
The endoscope system according to claim 4, provided in the treatment means.

(13) The operation force transmitting means of the endoscope is
5. The endoscope system according to claim 4, provided in the operation means.

(14) The operating force transmitting means of the endoscope is
4. The endoscope system according to claim 4, wherein the endoscope system is sterilizable.

(15) The endoscope system according to appendix 4, wherein the endoscope is provided with a conduit for operating force transmitting means.

(16) a conduit for the operating force transmitting means;
16. The endoscope system according to claim 15, wherein a suction pipe of the endoscope is provided separately.

(17) The pipe for the operating force transmitting means is
16. The endoscope system according to claim 15, wherein the endoscope system also serves as a suction conduit of the endoscope.

(18) The endoscope system according to appendix 1, wherein the operation means is provided near an operation section of the endoscope.

(19) The endoscope system according to appendix 18, wherein the operation means controls a plurality of operations.

(20) The endoscope system according to attachment 18, wherein the operation means is sterilizable.

[0065]

As described above, according to the present invention, the treatment instrument can be inserted into the treatment channel without being damaged, and the operation of the endoscope and treatment equipment under the endoscope is easy. Thus, it is possible to provide an endoscope system including a treatment device that can be stored in a small space.

[Brief description of the drawings]

FIGS. 1 to 5 relate to a first embodiment of the present invention. FIG. 1 shows a distal end portion of an endoscope constituting an endoscope system and an endoscope module attached to the endoscope. 1
Sectional drawing explaining the structure of the module for ligation which is an example

FIG. 2 is an explanatory diagram showing a configuration of an operation unit of the endoscope.

FIG. 3 is an explanatory view showing a state in which a ligation module is attached to a distal end portion of the endoscope.

FIG. 4 is a view for explaining the operation of an endoscope to which a ligation module is attached.

FIG. 5 is a diagram illustrating a use state when an elastic ring is continuously attached to an affected part.

FIG. 6 is an explanatory view showing a configuration of a gripping module and a distal end portion of an endoscope, which are other forms of the endoscope module according to the second embodiment of the present invention.

FIGS. 7 and 8 relate to an application example of the first embodiment,
FIG. 7 is an explanatory view showing another configuration of a gripping module and an endoscope which are other forms of the endoscope module.

FIG. 8 is a diagram showing a configuration of an operation unit of the endoscope.

FIGS. 9 and 10 relate to another application example of the first embodiment, and FIG. 9 is a diagram illustrating a configuration of a cytodiagnosis module and an endoscope which are other forms of an endoscope module. Figure

FIG. 10 is a diagram showing a configuration of an operation unit of the endoscope.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Endoscope system 2 ... Endoscope 3 ... Ligation module 22 ... Tip protrusion part 23a ... Locking hole part 31a ... Projection part arrangement hole 35 ... Ring operation wire 36a ... Locking claw part 37 ... No. 2 connecting member 41 ... first connecting member

Claims (1)

[Claims] 1. An endoscope system in which an endoscope module having at least one or more treatment means can be attached to a distal end portion of the endoscope via attachment / detachment means. An endoscope system provided with operation means for operating the treatment means of the endoscope module at hand.