WO2007020687A1

WO2007020687A1 - Endoscope device, endoscope insertion section of the endoscope device, and insertion aid of the endoscope insertion section

Info

Publication number: WO2007020687A1
Application number: PCT/JP2005/014951
Authority: WO
Inventors: Ryosuke Ishizaki; Atsushi Watanabe
Original assignee: Olympus Medical Systems Corp.
Priority date: 2005-08-16
Filing date: 2005-08-16
Publication date: 2007-02-22
Also published as: JPWO2007020687A1

Abstract

An endoscope device (1) performing, by rotation of an elongated endoscope insertion section (2), either insertion of the endoscope insertion section (2) into or pulling it out from a portion to be diagnosed. An insertion aid (100) having a space (200) formed by at least two opposite surfaces (100a1, 100b1) is provided at at least that part of the endoscope insertion section (2) which is not yet inserted into the portion to be diagnosed, and the portion not yet inserted is inserted through the space (200).

Description

Endoscope apparatus, endoscope insertion part of the endoscope apparatus, insertion aid for the endoscope insertion part

Technical field

The present invention relates to an endoscope apparatus, an endoscope insertion portion of the endoscope apparatus, and an insertion assisting tool for the endoscope insertion section.

Background art

[0002] As is well known, endoscopes are widely used in various fields such as medical care and industry for the purpose of observing sites that cannot be directly visually observed, such as in a tube. It is configured with an elongated insertion portion that is inserted into a test site.

[0003] By the way, in recent years, the proximal end side of the insertion portion of the endoscope is made detachable to the operation portion, and the insertion portion is made disposable, for example, so that the trouble of washing after use can be saved and more hygienic. Various medical endoscopes have been proposed! Speak.

[0004] Various types of such disposable endoscopes are known. As an example, in an endoscope in which an insertion portion is inserted into the large intestine by an anus, a rotating cylinder that is rotatable around an axis having a spiral-shaped portion is provided on the outer periphery of the insertion portion, and the rotating cylinder is provided. By rotating the body with a motor or the like, the insertion portion can be automatically inserted into the large intestine by the screw action using the friction generated between the spiral-shaped portion and the intestinal wall. A traveling endoscope is known.

A technique for inserting a medical device such as an endoscope into a body cavity using friction between the rotating member and the tissue in the body cavity is disclosed in, for example, Japanese Patent Laid-Open No. 10-113396. It has been disclosed.

[0006] However, in the case of a rotating self-propelled endoscope, the intestinal wall of the large intestine has flexibility, so that the insertion portion that rotates and advances in the large intestine after the insertion is rotated against the rotation from the intestinal wall. Receive resistance

[0007] In this way, when the inserted insertion portion receives resistance against rotation from the intestinal wall, the resistance is dispersed, so that the uninserted portion of the insertion portion located outside the body is not inserted into the insertion portion. In rotation There was a problem that it could be twisted more and it could not be inserted into the large intestine. The occurrence of this rotational twist is the same when the colon force is removed from the insertion portion.

[0008] The present invention has been made in view of the above circumstances, and at least whether to insert the insertion portion of the rotary self-propelled endoscope into the test site or to remove the insertion portion from the test site force. On the other hand, an endoscope apparatus that can easily prevent rotational twisting of an uninserted portion of the insertion section in a space-saving manner, an endoscope insertion section of the endoscope apparatus, and insertion of the endoscope insertion section The purpose is to provide assistive devices.

Disclosure of the invention

Means for solving the problem

[0009] The endoscope apparatus of the present invention is configured to rotate at least an elongated endoscope insertion portion, thereby inserting at least whether the endoscope insertion portion is inserted into the test site or removed from the test site. In the endoscope apparatus that performs one of the above, the uninserted portion of the endoscope insertion portion is at least a part of the uninserted portion of the endoscope insertion portion into the test portion. An insertion assisting tool having a space formed by at least two opposing surfaces to be inserted is provided.

[0010] In the endoscope insertion portion of the endoscope apparatus of the present invention, the insertion assisting tool according to any one of claims 1 to 12 is provided in at least a part of the uninserted portion of the endoscope insertion portion. It is characterized by that.

[0011] The insertion assisting tool of the present invention is provided in at least a part of the uninserted portion of the endoscope insertion portion according to claim 13.

Brief Description of Drawings

FIG. 1 is a diagram showing a configuration of a rotary self-propelled endoscope apparatus showing an embodiment of the present invention.

2 is a cross-sectional view along the insertion axis direction showing the configuration of the distal end side of the endoscope insertion portion in FIG.

FIG. 3 is an enlarged perspective view showing a portion of the endoscope insertion portion of FIG. 1 where the rotating cylinder is not inserted together with a case.

4 is a partial cross-sectional view showing only the case of FIG.

FIG. 5 is an enlarged perspective view showing the uninserted portion of the rotating cylinder together with the case when the rotating cylinder of FIG. 3 is inserted to the insertion limit to the intestine. FIG. 6 is a top view showing a modification of the case of FIG.

[7] A top view showing still another modification of the case of FIG.

8] A top view showing still another modification of the case of FIG.

FIG. 9 is a front view showing an elastic body provided at the outlet of the case of FIG.

FIG. 10 is a partial cross-sectional view of the case and the rotating cylinder, showing only the case in cross section when an elastic body is provided at the outlet of the case of FIG.

FIG. 11 is a perspective view showing, in an enlarged manner, a portion of the rotating cylinder that is not inserted when the cover tube is connected to the inlet and outlet of the case of FIG.

[12] Cross-sectional view showing how the cover tube is connected to the case of FIG. 11 and the rotation drive unit.

FIG. 13 is a partially enlarged cross-sectional view showing the configuration of the cover tube connected to the outlet of the case of FIG. 14] Partial enlarged sectional view showing the structure of the cover tube connected to the inlet of the case of FIG. 15] A partially enlarged cross-sectional view showing a modification of the cover tube of FIG.

FIG. 16 is an enlarged perspective view showing an uninserted portion of the rotating cylinder together with the case when at least one of the flat plates having the opposing surface of the case in FIG. 3 can be opened and closed.

FIG. 17 is a cross-sectional view taken along line XVII—XVII in FIG.

18 is a cross-sectional view showing a modification of the cover tube in FIG.

FIG. 19 is a perspective view showing a modified example in which a mechanism for adjusting the height of the case outlet from the mounting surface in FIG. 1 is provided separately from the case 100.

[20] FIG. 20 is a perspective view showing the configuration of the case and the rotating cylindrical body when the case of FIG. 1 is placed with the mounting surface changed.

FIG. 21 is a perspective view showing a modified example in which another mechanism for changing the height of the exit of the case from the placement surface of FIG. 20 is provided separately from the case.

FIG. 22 is a perspective view showing an example in which a mechanism for changing the height of the exit of the case from the mounting surface of FIG. 20 is provided in the case.

FIG. 23 is a sectional view taken along the line ΠΧΠΙ-ΠΧΠΙ in FIG.

FIG. 24 is a perspective view showing a modification in which another case for changing the height of the exit of the case from the placement surface of FIG. 20 is provided in the case.

[Fig.25] Another mechanism for changing the height of the case exit from the mounting surface in Fig. 20 is used. The figure which shows the modification provided in the case.

FIG. 26 is a perspective view showing a modified example in which a fixing arm is provided in the case of FIG.

FIG. 27 is a diagram schematically showing an example in which the case of FIG. 26 is connected to a bed using a fixed arm. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Hereinafter, in the present embodiment, the endoscope apparatus will be described by taking a medical rotary self-propelled endoscope apparatus as an example.

FIG. 1 is a diagram showing a configuration of a rotary self-propelled endoscope device showing an embodiment of the present invention, and FIG. 2 is a diagram showing a configuration of a distal end side of an endoscope insertion portion in FIG. It is sectional drawing along the insertion axis direction.

As shown in FIG. 1, a rotating self-propelled endoscope apparatus (hereinafter referred to as an endoscope apparatus) 1 is an elongated insertion section 2 that is inserted into a body cavity, for example, a test site in the intestine. A rotation drive unit 3 and an operation unit 4 provided on the proximal end side of the insertion unit 2, a universal code 5 extending from the operation unit 4, and a distal side of the universal cord 5. A universal connector 6; a control cable 7 extending from the universal connector 6; a control device 8 at which the distal end of the control cable 7 is detachable, for example; and a foot switch 9 that is detachable from the control device 8; The main part is composed of

The insertion portion 2 is, for example, a disposable type, and includes a distal end portion 11, a rotating cylindrical body 12 connected to the proximal end side of the distal end portion 11, and a base of the rotating cylindrical body 12. The main part is configured including the connection part 13 provided on the end side. Note that the insertion section 2 may not be of the force disposer type described later in FIGS. 16 to 18.

[0017] Further, a closing member (hereinafter referred to as a case) 100, which is an insertion assisting tool, is provided at an intermediate position of the insertion portion 2, specifically, the rotating cylinder 12. Case 100 will be described in detail later.

As shown in FIG. 2, an objective optical system 21 is disposed on the distal end surface lis of the distal end portion 11, and the imaging plane of the objective optical system 21 is configured by a CCD, a CMOS, or the like. An image sensor 22 is provided.

[0019] Further, imaging on the distal end surface l is of the distal end portion 11 is performed by the objective optical system 21 and the imaging element 22. LED23 is provided as an illumination light source that illuminates the subject intestine.

[0020] The signal line 22a extending from the image sensor 22 and the signal line 23a, which is a power line extending from the LED 23, are combined on the way, and then the signal cable 26 has a proximal end on the operation unit 4 It is connected to the.

[0021] Further, in order to clean the exposed surface of the objective optical system 21 on the tip surface lis of the tip portion 11 or to wipe off water droplets or the like adhering to the objective optical system 21, a fluid may be applied to the objective optical system 21. An air supply / water supply nozzle 24a for supplying air and water is provided.

The air / water supply nozzle 24 a is connected to the distal end side of the air / water supply tube 24, and the proximal end side of the air / water supply tube 24 is connected to the operation unit 4.

[0023] Furthermore, an opening 25a of a channel 25 used for suction or the like is opened on the tip surface lis of the tip portion 11, for example. The base end side of the channel 25 is connected to the operation unit 4. Further, on the proximal end side of the distal end portion 11, an abutting portion 1 la to which the distal end surface 12 s of the rotating cylinder 12 is abutted is provided.

[0024] The rotating cylinder 12 is a member in which a spiral convex portion is formed on the outer peripheral surface 12g, and is configured to be rotatable around an axis in the insertion direction. In addition, the outer peripheral surface 12g is not limited to the spiral convex portion, and may be formed with a spiral concave portion or a convex portion protruding so as to be continuously provided along the spiral.

[0025] When the rotating cylindrical body 12 configured as described above is rotated by the rotation driving unit 3, the helical convex portion of the outer peripheral surface 12g is brought into contact with the intestinal wall to thereby cause a thrust to the rotating cylindrical body 12. As a result, the rotating cylinder 12 itself advances in the insertion direction.

[0026] After that, as a result of the distal end surface 12s of the rotating cylinder 12 abutting against the abutting portion 11a while rotating, the distal end portion 11 advances in the insertion direction by pressing the distal end portion 11 in the insertion direction. . In this way, the insertion part 2 including the distal end part 11 is inserted into the intestine!

In addition, a tube 27 is disposed on the inner peripheral surface side of the rotary cylinder 12. The tube 27 protects the tubes 24 and 25 and the cable 26 by passing the air / water supply tube 24, the channel 25, and the signal cable 26 as described above. The tube 27 does not hinder the rotation of the rotating cylinder 12 on the outer peripheral surface side. ぅ is arranged.

[0028] Returning to Fig. 1, the connecting portion 13 is connected to the rotating cylinder connecting portion 14 provided in the rotation driving portion 3, and by this connection, the motor 70 provided in the rotation driving portion 3 is driven. The force is transmitted to the rotating cylinder 12 so that the rotating cylinder 12 is rotated.

[0029] In addition, a plurality of leg portions 15 used for placing the rotation drive unit 3 are provided on the lower surface of the rotation drive unit 3. In addition, the rotation drive unit 3 is placed with the lower surface provided with the legs 15 on the lower side in the direction of gravity. Therefore, the leg portion 15 also functions as an index indicating the lower side in the gravity direction.

[0030] Further, the rotation drive unit 3 is disposed in the middle of the air / water supply tube 24, the channel 25, and the signal cable 26 described above. In other words, an air / water supply tube 24, a channel 25, and a signal cable 26 are passed through the rotation drive unit 3. The outer surface of the air supply / water supply tube 24, the channel 25, and the signal cable 26 is exposed through the insertion part 2 of the signal cable 26, and the outer surface of the part is exposed.

[0031] An air / water connection 24b is provided at the proximal end of the air / water supply tube 24, a suction connection 25b is provided at the proximal end of the channel 25, and a signal cable 26 A signal connection portion 26b is provided at the base end portion of this.

[0032] The air / water connection part 24b, the suction connection part 25b, and the signal connection part 26b are connected to a connection part 31 provided on the side surface of the operation part 4.

[0033] The operating unit 4 is provided with a grip 4a for gripping the operating unit 4 by hand, and the operating unit 4 is operated to supply air and water through the air / water supply tube 24. Various operation buttons are provided such as the air / water supply button 4b and the suction button 4c for operating suction through the channel 25.

[0034] In the universal cord 5 extended from the operation unit 4, the air / water supply pipe connected to the air / water supply tube 24, the suction pipe connected to the channel 25, or the signal cable 26 is connected. Signal lines etc. to be installed are arranged.

[0035] An image transmitted from the imaging element 22 to the universal connector 6 provided on the distal end side of the universal cord 5 in addition to each connection portion of an air supply device, a water supply tank, and a suction pump (all not shown). A connection to a video processor for processing the signal is provided. [0036] In the control cable 7 extended from the universal connector 6, a signal line to the rotation drive unit 3 and a signal line to the LED 23 disposed in the distal end portion 11 are disposed. RU

[0037] The control device 8 to which the control cable 7 is connected controls the motor 70 disposed in the rotation drive unit 3 and controls the light emission state of the LED 23. There are switches and various volume dials.

The foot switch 9 is for controlling the motor 70 of the rotation drive unit 3. Note that the light emission state of the LED 23 may be controlled by the foot switch 9.

Next, the configuration of case 100 described above will be described with reference to FIG. FIG. 3 is an enlarged perspective view showing the uninserted portion of the rotating cylinder of the endoscope insertion portion of FIG. 1 together with the case.

FIG. 4 is a partial cross-sectional view showing only the case of FIG.

As shown in FIG. 3, a case 100 is provided in at least a part of the insertion portion 2, specifically, a portion of the rotating cylinder 12 that has not been inserted into the intestine.

[0041] Specifically, the case 100 includes at least two opposing surfaces 1 of the two opposing flat plates 100a and 100b.

If the OOal and lOObl holes are arranged so that a space 200 through which the uninserted portion of the rotating cylinder 12 is inserted is formed, the side forces of the flat plates 100a and 100b are changed to flat plates 100c, 100d, 100e, and 100f. Thus, it is formed in a box shape connected in the height direction in FIG.

That is, the case 100 is formed to be substantially rectangular or square when viewed from the direction of the flat plate 100a. Note that the plate constituting the case 100 is not limited to a flat plate. Flat plate

100a and 100b are formed of a member having rigidity that restricts rotational twisting of the rotating cylinder 12 to be described later.

Also, as shown in FIGS. 3 and 4, the flat plates 100c to 100f are formed by the distance h between the surface 100al of the flat plate 100a and the surface 100bl of the flat plate 100b h force of the rotary cylinder 12 passed through the space 200. The flat plate 100a and the flat plate 100b are connected so as to be smaller than the outer diameter 2φA which is twice that of the rotating cylinder 12 larger than the outer diameter φA.

[0044] Furthermore, the flat plates 100c and 100d of the case 100 are openings having a diameter smaller than the outer diameter 2φA which is twice the outer diameter φA of the rotating cylinder 12 larger than the outer diameter φA of the rotating cylinder 12. Entrances 101 and 102 are formed. [0045] The proximal end side of the uninserted portion of the rotating cylinder 12 is passed through the inlet 101, and the outlet 102 moves or rotates out of the case 100 while rotating from within the case 100. However, the uninserted portion of the rotating cylinder 12 that has entered the case 100 is threaded.

That is, at least a part of the portion of the rotating cylinder 12 that has not been inserted into the intestine is provided in the case 100 via the inlet 101 formed in the flat plate 100c and the outlet 102 formed in the flat plate 100d. The space 200 is passed through and stored. In the space 200, all of the parts that have not yet been inserted into the intestine of the rotary cylinder 12 may be passed through and stored.

[0047] Note that the case 100 is not removed from the rotating cylinder 12 when the insertion portion 2 is of a disposable type. That is, the case 100 is formed integrally with the insertion portion 2.

[0048] In addition, the rotating cylinder 12 passed through the case 100 is arranged in a space 200 in the case 100, for example, having a free-form surface shape as shown in FIG.

[0049] Therefore, in this state, the uninserted portion of the rotating cylinder 12 can freely move within the case 100 in a state where the height direction in FIG. 3 is regulated by the flat plates 100a and 100b. There is. For this reason, the non-inserted portion of the elongated rotating cylinder 12 is accommodated in the case 100 in a compact manner.

[0050] Further, the surface lOOal of the flat plate 100a and the surface lOObl of the flat plate 100b are defined as a space 20 in the case 100.

It is formed so as to be a surface having a lower friction coefficient than the friction coefficient of the outer peripheral surface 12g which is the outer surface of the rotating cylinder 12 inserted through 0 !.

[0051] Specifically, the flat plate 100a and the flat plate 100b are formed of polypropylene, polyethylene, polysulfone, SUS material, fluorine resin, or the like. The material having a low coefficient of friction is not limited to these materials.

[0052] If the surface 100al and the surface 100bl are coated with a material having a low friction coefficient such as fluorine resin, the flat plate 100a and the flat plate 100b are made higher than the friction coefficient of the outer peripheral surface 12g of the rotating cylinder 12.

Even if it is made of V ヽ material, it can be used for Case 100.

[0053] Further, the surface 100b2 of the flat plate 100b, that is, the outer surface 100b2 of the flat plate 100b

For example, a mounting surface for mounting 100 on a bed or the like is configured. Therefore, the symbol 100b2 is also attached to the mounting surface. [0054] As shown in FIG. 4, the mounting surface 100b2 is provided with rubber 130 or the like as a fixing member so that the case 100 can be easily mounted and fixed on an object such as a bed! Are you okay?

[0055] As described above, when the case 100 is placed and fixed on a bed or the like, the case 100 moves, and the non-inserted portion of the rotating cylinder 12 outside the case 100 is twisted by rotation. This can be prevented.

[0056] Note that the member for placing and fixing the case 100 on a bed or the like is not limited to rubber. This can also be realized by forming the flat plates 100a to 100e constituting the case 100 with heavy plates.

Next, the operation of the endoscope apparatus 1 of the present embodiment configured as described above will be described with reference to FIGS. 1 to 4 and FIG. FIG. 5 is an enlarged perspective view showing an uninserted portion of the rotating cylinder together with the case when the rotating cylinder of FIG. 3 is inserted into the intestine up to the insertion limit.

[0058] When inserting the insertion portion 2 into the large intestine, first, the distal end portion 11 of the insertion portion 2 and the distal end side of the rotating cylinder 12 are inserted from the anus into the intestine by the operator.

[0059] Next, as described above, when the rotating cylinder 12 is rotated by the rotation driving unit 3, the spiral convex portion of the outer peripheral surface 12g of the rotating cylinder 12 is brought into contact with the intestinal wall. A thrust is generated in the rotating cylinder 12, and as a result, the rotating cylinder 12 itself advances in the insertion direction.

[0060] After that, as a result of the distal end surface 12s of the rotating cylindrical body 12 abutting against the abutting portion 11a (see FIG. 2) while rotating, the distal end portion 11 is pressed in the insertion direction, whereby the distal end portion 11 Advances in the insertion direction. In this way, the insertion portion 2 including the distal end portion 11 is inserted to the test site in the intestine.

Here, the uninserted portion of the rotating cylinder 12 that has not yet been inserted into the intestine is rotated by the rotation of the rotating cylinder 12 driven by the rotation drive unit 3, and The part arranged in the space 200 moves out of the case 100, and the part located outside the case 100 is inserted into the intestine.

[0062] At this time, since the case 100 is provided in at least a part of the non-inserted portion of the rotating cylinder 12, the rotating cylinder 12 inserted in the intestine has the intestinal wall force and resistance to rotation. By receiving, the non-inserted portion outside the body cavity of the rotating cylinder 12 is twisted by rotation, and the height direction It is prevented that it floats greatly.

[0063] This is because the distance between the opposing surfaces lOOal, lOObl between the two opposing flat plates 100a and 100b of the case 100 is larger than the outer diameter φA of the rotating cylinder 12 and the outer diameter 2φA is twice as large. This is because it is becoming smaller.

[0064] In addition, the non-inserted portion of the rotating cylinder 12 housed in the case 100 is allowed to move independently in the space 200 in the case 100 in a state where the height direction is restricted by the facing surfaces 100al and 100bl. It is arranged to draw a free-form surface shape.

[0065] Therefore, the non-inserted portion of the rotating cylinder 12 housed in the case 100 is movable in the space 200, and thus is smoothly inserted into the intestine via the outlet 102.

[0066] When the rotating cylinder 12 is inserted up to the insertion limit of the rotating cylinder 12, the uninserted portion of the rotating cylinder 12 enters the entrance in the case 100 as shown in FIG. 101 and outlet 102 are arranged so as to be connected by a substantially straight line.

[0067] Similarly, when the rotating cylinder 12 is removed from the intestine by the operator, the removed rotating cylinder 12 smoothly enters the case 100 from the outlet 102, and again. , Case 10

Within 0, as shown in FIG. 3, it is arranged so as to draw a free-form surface shape and stored in case 100. At this time, if the flat plates 100a to 100f of the case 100 are formed of a transparent member, the arrangement state of the rotating cylinder 12 can be visually confirmed.

[0068] Further, the uninserted portion of the rotating cylinder 12 accommodated in the case 100 is covered with the six flat plates 100a to 100f of the case 100, so that the dirt case attached to the rotating cylinder 12 is covered. Splattering out of source 100 is prevented.

[0069] Finally, if the insertion portion 2 is of a disposable type, the connecting portion 13 of the rotating cylinder 12 is removed from the rotating cylinder connecting portion 14 provided in the rotation driving portion 3. The insertion part 2 and the case 100 are discarded.

Thus, in the endoscope apparatus showing the present embodiment, the space 20 in the case 100

In 0, at least a part of the non-inserted portion of the rotating cylinder 12 was inserted.

[0071] In addition, the distance h between the opposing surfaces 100al and 100bl of the two flat plates 100a and 100b of the case 100 is

The space 200 is formed by the two flat plates 100a and 100b so as to be smaller than the outer diameter 2φA which is twice as large as the outer diameter φA of the rotating cylinder 12. [0072] Further, the uninserted portion of the rotating cylinder 12 housed in the case 100 is a free curved surface in the case 100 that is movable in a state in which the height direction is regulated by the opposing surfaces lOOal and lOObl. It was shown to be compactly arranged to draw the shape.

[0073] According to these facts, the rotating cylinder 12 inserted into the intestine receives a resistance against rotation from the intestinal wall, so that it is twisted due to the rotation of the uninserted region force of the rotating cylinder 12 and is high. Even if the surface is lifted greatly in the direction, the lift is restricted by the opposing surfaces lOOal and lOObl.

[0074] Further, since the uninserted portion of the rotating cylinder 12 is movable in the case 100, the force of the rotating cylinder 12 to be twisted and lifted up is opposed to the opposing surface in the space 200 in the case 100. Dispersed in the direction perpendicular to the direction connecting lOOal and lOObl, specifically, in the direction of V of the plates 100c to 100f, or any deviation.

In addition, even if the rotating cylinder 12 arranged in the case 100 tries to get over another rotating cylinder 12 arranged in the case 100, it is restricted by the facing surfaces lOOal and lOObl.

[0076] Therefore, unlike the conventional case, the case 100 does not require a hard tube that covers the entire length of the elongated rotating cylinder 12 before insertion, and the case 100 allows the twisted portion of the rotating cylinder 12 to be untwisted. It can be easily prevented by saving space.

[0077] Further, since at least a part of the non-inserted portion of the rotating cylinder 12 is disposed in a compact manner in the case 100, when the rotating cylinder 12 is inserted into the intestine, the conventional non-inserted portion is removed. It is not necessary to gradually remove only the hard tube and the rotating cylinder force as when covered with a hard tube. This is the same when the rotating cylinder 12 is removed from the intestine, and it is not necessary to cover the extracted rotating cylinder 12 with a hard tube.

[0078] Further, at least a part of the non-inserted portion of the rotating cylinder 12 is movable in the case 100 while drawing a free-form surface shape with the height direction regulated by the opposing surfaces lOOal and lOObl. Therefore, the insertion property of the uninserted portion of the rotating cylinder 12 and the storage property when it is removed from the intestine can be improved without preparing a separate insertion / extraction tool.

[0079] In addition, by disposing the uninserted portion of the rotating cylinder 12 in the case 100, it is possible to prevent accidental contact with a person or an object outside the uninserted region force of the rotating cylinder 12. Togashi. [0080] A modification will be described below.

In the present embodiment, the case 100 is shown to be composed of six flat plates 100a to 100f. The case 100 is not limited to this, and the case 100 has at least a repulsive force at the position where the rotating cylinder 12 is not inserted into the intestine. Each opposing surface of the two flat plates 100a and 100b lOOal, 100b

Of course, as long as the space 200 formed with the above-described interval h is passed through 1, it can be formed of any number of flat plates.

[0081] Therefore, the flat plate 100a, 10a is not limited to the case, and the scattering of filth after use is ignored.

You may comprise an insertion auxiliary tool only with Ob.

[0082] Another modification will be described below.

6 is a top view showing a modified example of the case of FIG. 3, FIG. 7 is a top view showing yet another modified example of the case of FIG. 3, and FIG. 8 is still another example of the case of FIG. It is the top view which showed the modification.

In the present embodiment, it has been shown that case 100 is formed to have a substantially rectangular or cubic shape when viewed from the direction of flat plate 100a.

[0084] The case 100 is not limited to this, as shown in FIG.

It may be formed in an octagon shape, may be formed in a diamond shape as shown in FIG. 7, or may be formed in a lantern type having a curved surface as shown in FIG. Needless to say.

It should be noted that the shape of the case 100 is such that at least a portion of the uninserted portion of the rotary cylinder 12 is a force surface 10.

Any material can be used as long as it can pass through the space 200 formed with the above-described interval h by Oal, 100bl.

[0086] Still another modification will be described below.

9 is a front view showing an elastic body provided at the outlet of the case of FIG. 3, and FIG. 10 is a sectional view of only the case when the elastic body is provided at the outlet of the case of FIG. FIG. 3 is a partial cross-sectional view of a case and a rotating cylinder.

As shown in FIG. 10, an elastic member 57 that is a propulsive force generating member may be disposed on the inner periphery of the outlet 102 of the case 100.

[0088] Specifically, the elastic member 57 has a substantially disk shape having a predetermined thickness, and is shown in FIG. Thus, a substantially cross-shaped through hole 59 is formed at the center so as to penetrate the elastic member 57 in the thickness direction.

[0089] The through hole 59 includes two slits 59b formed so as to be substantially orthogonal at the center, a circular centering hole 59a formed at the intersection of the two slits 59b, and the two The slit 59b is formed by a tear-preventing hole 59c formed at each end of the slit 59b.

[0090] The elastic member 57 is an elastic body having a JIS hardness range force A20 to A90, for example, synthetic natural rubber, silicon rubber, which is performed according to a spring type durometer hardness test type A (standard number: JIS-K-6253). It is formed by.

[0091] The through hole 59 of the elastic member 57 is provided in the rotating cylinder in the case 100 when the rotating cylinder 12 is moved from the outlet 102 of the case 100 to the outside of the case 100 or from the outside of the case 100 via the outlet 102. 1 A hole through which the rotating cylinder 12 is inserted when 2 enters.

Further, the centering hole 59a is a hole used for centering the rotating cylinder 12 to be inserted. Further, the tear preventing hole 59c is a hole for preventing tearing at each end of the two slits 59b of the elastic member 57 when the rotating cylinder 12 is inserted into the through hole 59.

The thus configured elastic member 57 is configured such that the inner periphery formed by the through hole 59 of the elastic member 57 rotates when the rotating cylinder 12 is discharged from the outlet 102 of the case 100. By pressing the outer periphery of the rotating cylinder 12, the insertion of the rotating cylinder 12 is promoted using the elastic force of the elastic member 57.

[0094] This is because, as a result of the elastic member 57 pressing the outer periphery of the rotating cylinder 12, the contact state between the inner periphery of the elastic member 57 and the outer periphery of the rotating cylinder 12 is a relationship between a male screw and a female screw due to friction. This is because a propulsive force for advancing the rotating cylinder 12 is generated in the elastic member 57 such that the male screw moves relative to the female screw.

[0095] Further, another modification will be described below.

FIG. 11 is an enlarged perspective view showing the uninserted portion of the rotating cylinder together with the case when the ends of the cover tubes 171, 172 are connected to the inlet and outlet of the case of FIG. FIG. 12 is a cross-sectional view showing how the cover tubes 171 and 172 are connected to the case of FIG. 11 and the rotation drive unit. 13 is a partial enlarged cross-sectional view showing the configuration of the cover tube 171 connected to the outlet of the case of FIG. 11. FIG. 14 shows the configuration of the cover tube 172 connected to the inlet of the case of FIG. FIG. 15 is a partially enlarged sectional view showing a modification of the cover tube 172 of FIG.

In the present embodiment, it has been shown that at least a part of the uninserted portion of the rotating cylinder 12 is inserted into the space 200 of the case 100. Therefore, the uninserted parts of the rotating cylinder 12 located between the inlet 101 of the case 100 and the rotation driving unit 3 and between the outlet 102 of the case 100 and the anus are exposed to the outside in FIG. It becomes the composition which is done.

[0098] Not limited to this, as shown in FIG. 11, the non-insertion of the rotating cylinder 12 located between the inlet 101 of the case 100 and the rotation drive unit 3 and between the outlet 102 of the case 100 and the anus is not inserted. In this part, the cover tubes 171 and 172 which are covering members may be covered.

Specifically, as shown in FIG. 12, the cover tube 171 covering the uninserted portion of the rotating cylinder 12 located between the outlet 102 of the case 100 and the anus has a base end at the case. By being connected to a base 104 connected to 100 outlets 102, the case 100 is detachably attached.

[0100] Further, the cover tube 172 covering the uninserted portion of the rotating cylinder 12 located between the inlet 101 of the case 100 and the rotation driving unit 3 has a tip connected to the inlet 101 of the case 100. By being connected to the base 103 and the base end being connected to the rotating cylinder connecting portion 14 of the rotation driving unit 3, the case 100 and the rotation driving unit 3 are detachably mounted.

[0101] The inner diameter of the cover tubes 171, 172 is twice that of the rotating cylinder 12 larger than the outer diameter φA of the rotating cylinder 12 as well as the distance h between the opposing surfaces lOOal, lOObl of the case 100 It is formed to be smaller than the outer diameter 2 φA.

[0102] Further, the cover tubes 171, 172 are also formed with tubes or tube forces having such rigidity that the rotating cylinder 12 is not twisted by rotation.

[0103] As shown in Fig. 13, the cover tube 171 includes a blade 171c and a flex 171d sandwiched between the outer tube 171a and the inner tube 171b, and an elastic member 57.

[0104] As shown in Fig. 14, the cover tube 172 includes an outer tube 172a and an inner tube 172b. The main part is configured by sandwiching the blade 172c and the flex 172d.

Note that the cover tube 172 is not limited to the configuration of FIG. 14, and may be formed of a single layer flexible shaft capable of maintaining the shape, a rigid tube, or the like, as shown in FIG.

In this way, between the inlet 101 of the case 100 and the rotary drive unit 3, and the outlet 1 of the case 100.

By covering the non-inserted part of the rotating cylinder 12 located between 02 and the anus with the cover tubes 171, 172, the partial force of the rotating cylinder 12 in the non-insertion area outside the case 100 is rotated. It is possible to prevent twisting.

It should be noted that the covering of the cover tubes 171 and 172 as described above is necessary between the inlet 101 of the case 100 and the rotary drive unit 3 and between the outlet 102 of the case 100 and the anus.

[0108] Further, another modification will be described below.

FIG. 16 is an enlarged perspective view showing the uninserted portion of the rotating cylinder together with the case when at least one of the flat plates having the facing surface of the case of FIG. 3 can be opened and closed, and FIG. FIG. 18 is a sectional view taken along line XVII--XVII in FIG. 17, showing a modification of the cover tube of FIG.

In the present embodiment, the insertion portion 2 and the case 100 are integrated with each other by inserting the rotary cylinder 12 of the insertion portion 2 through the space 200 of the case 100. It is said that it is of a disposable type and will be discarded after use.

[0110] Not limited to this, the insertion part 2 and the case 100 may be cleaned and disinfected after use by reusing the case 100 with respect to the insertion part 2 after use.

Specifically, as shown in FIG. 16, if the flat plate 100a of the case 100, for example, can be opened and closed with respect to the case 100, the insertion portion 2 is removed from the case 100 after use, and the insertion portion 2 〖is removed. It can be cleaned and disinfected. According to this, the cost related to the inspection can be reduced. The flat plate detachable from the case 100 may be the flat plate 100b.

[0112] Further, when the case 100 is detachable with respect to the insertion portion 2, the case 100 and the above-described force bar tubes 171, 172 can also be removed from the insertion portion 2. Therefore, the case 100 and the cover tube 171 , 172 can be cleaned and disinfected, and can be reused.

[0113] When the cover tube 171 is attached to and detached from the rotating cylinder 12 of the insertion portion 2, it is shown in FIG. As described above, when the opening 171k is formed in the cover tube 171 and the cover tube 171 is formed of a plastic material, the cover tube 171 can be easily attached to and detached from the rotating cylinder 12. This is the same even when the opening 171k of the cover tube 171 is formed larger than the outer diameter of the rotating cylinder 12 as shown in FIG.

Note that the configuration of the cover tube 171 shown in FIGS. 17 and 18 may of course be applied to the cover tube 172.

[0115] Furthermore, another modification will be described below.

FIG. 19 is a perspective view showing a modification in which a mechanism for adjusting the height from the placement surface of the case outlet of FIG.

[0116] Meanwhile, the height of the anus of the subject into which the insertion portion 2 is inserted, for example, from the bed, varies depending on various personal characteristics of the subject. In order to improve the insertion property of the insertion portion 2 into the large intestine, it is preferable that the height force of the outlet 102 of the case 100 from the placement surface 100b2 coincides with the height from the anal bed. That is, it is preferable that the height of the case 100 from the mounting surface 100b2 can be adjusted.

[0117] In view of such circumstances, the case 100 may be provided with a mechanism for adjusting the height of the outlet 102 from the placement surface 100b2.

[0118] Specifically, as shown in FIG. 19, the case 100 is a height variable mechanism, and a plurality of prepared heights different from the case 100, which are different from the case 100, are placed on the mounting surface. 100b2 is placed.

[0119] According to this, the height from the mounting surface 100b2 of the outlet 102 can be increased only by preparing a plurality of tables 240 having different heights and adjusting the height of the table 240 according to the number of the tables. The height from the anal bed can be matched.

[0120] Therefore, the insertion property of the rotating cylinder 12 into the large intestine can be improved, and the non-inserted portion of the rotating cylinder 12 located between the outlet 102 of the case 100 and the anus can be shortened. it can. As a result, it is possible to prevent rotational twisting of the uninserted portion of the rotating cylinder 12 positioned between the outlet 102 of the case 100 and the anus. Furthermore, the entire uninserted part of the rotating cylinder 12 that cannot be inserted into the intestine can be shortened.

Note that, as described above, the height of the outlet 102 from the mounting surface 100b2 can be changed without preparing a separate member from the case 100 as described above. Specific examples Figure 20 shows.

FIG. 20 is a perspective view showing the configuration of the case and the rotating cylinder when the case of FIG. 1 is placed with the placement surface changed.

As shown in FIG. 20, when placing the case 100, the case 100 may be placed so that the placement surface is, for example, the outer surface lOOfl of the flat plate lOOf. That is, the case 100 that was horizontally placed in FIG. 3 may be placed vertically. Thus, if the case 100 is placed vertically, the height of the outlet 102 from the placement surface lOOfl can be changed.

[0122] In this case, since the height of the outlet 102 from the mounting surface lOOfl can be changed only uniquely, as shown in FIG. 20, a plurality of outlets 102 may be formed on the flat plate 100d. I do not care.

[0123] In addition, a plurality of the inlets 101 may be formed.

Other than 00c, for example, it may be formed on the flat plate 100e.

[0124] Furthermore, when the case 100 is placed vertically, the flat plate 100e that is the upper surface of the case 100 may not be provided in the case 100.

[0125] Here, when the case 100 is placed vertically with the mounting surface set as lOOfl, the case 100 has an outlet 1

02 mounting surface A mechanism to vary the height from lOOfl may be provided integrally or separately.

. Specific examples are shown in FIGS.

FIG. 21 is a perspective view showing a modification in which another mechanism for changing the height of the case outlet from the mounting surface in FIG. 20 is provided separately from the case.

As shown in FIG. 21, a height variable member 260, which is a variable member having a screw 261, may be connected to the lower surface of the base 241 on which the mounting surface lOOfl of the case 100 is mounted.

[0127] According to such a configuration, the height of the case 100, that is, the case outlet 102 from the placement surface lOOfl can be easily adjusted only by rotating the screw 261.

Next, an example in which the case 100 is provided with a height varying mechanism for the case 100 is shown.

22 is a perspective view showing an example in which the case is provided with a mechanism for changing the height of the case outlet from the mounting surface in FIG. 20, and FIG. 23 is a cross-sectional view taken along the line ΠΧΠΙ in FIG. .

[0129] Fig. 22, Fig. 23 [As shown here, the outer surface of the flat plate 100a, 100b of Goeth 100 [This, flat plate 100e]

, Along the direction connecting 100f, a plurality of protrusions 108, 109 are connected to the protrusion 108 and the protrusion 109. May be provided so as to face each other. Of the plurality of protrusions 108 and 109, the pair of protrusions 108 and 109 facing each other are provided at the same height from the mounting surface lOOfl.

[0130] The case 100 having such protrusions 108 and 109 is fixed to a base 270 which is a variable mechanism. The base 270 is engaged with a base 271, two struts 272 erected so as to sandwich the case 100 from the base 271, and protrusions 108 and 109 formed at the ends of the two struts, respectively. The engaging portion 273 constitutes a main portion. Case 100 is fixed to base 270 by engaging protrusions 108 and 109 with engaging portion 273 of base 270, respectively.

[0131] Thus, according to such a configuration, the height of the case outlet 102 from the mounting surface lOOfl is changed only by changing the engagement position of the engagement portion 273 with respect to the protrusions 108 and 109 in the height direction. Can be adjusted.

[0132] At this time, by forming the surface area of the base 271 larger than the surface area of the mounting surface lOOfl of the case 100, the case 100 can be stably mounted on a bed or the like.

FIG. 24 is a perspective view showing a modified example in which another case for changing the height of the outlet of the case of FIG. 20 from the mounting surface is provided in the case.

As shown in Fig. 24, the flat plate 10a and 100b on the outer surface of the case 100

There is a slide groove 100m connecting 0e and 100f! /!

[0134] In addition, two props 8 that stand up from the base 87 and hold the case 100 in the slide groove 100m 8

8 is engaged, and the two struts 88 and the slide groove 100m allow the case 100 to slide in the height direction.

RU

[0135] According to such a configuration, after the case 100 is slide-moved in the desired height direction with respect to the two posts 88, the two cases 100 are secured by the screws 211 at the desired height. Props

If fixed to 88, the height of the case outlet 102 from the mounting surface lOOfl can be easily adjusted.

FIG. 25 is a view showing a modification in which another case for changing the height of the outlet of the case from the placement surface of FIG. 20 is provided in the case.

[0137] As shown in Fig. 25, the case 100 is made of a metal plate that can be changed by the user's power. 281 may be integrally formed. Therefore, the case 100 can be tilted with respect to the table 281 with any inclination angle.

[0138] According to such a configuration, normally, the outlet 102 having a mounting surface force opened to a height of tl is provided in the case.

By simply tilting 100 with respect to the base 281, the height of the mounting surface force can be adjusted to t2 to a desired height lower than tl.

[0139] Furthermore, another modification will be described below.

26 is a perspective view showing a modified example in which a fixing arm is provided in the case of FIG. 1, and FIG.

It is a figure which shows roughly the example which connected the case of 6 to the bed using the fixed arm.

As shown in FIG. 26, the case 100 may be provided with a fixing arm 93 as a fixing means, and the fixing arm 93 may be connected to and fixed to the bed 98.

[0141] If the case 100 can be fixed to the bed 98 as described above, it is not necessary to place the case 100 on the bed 98, so that it is possible to save space when placing the case 100. it can

[0142] Further, the case 100 can be fixed to the bed 98 so that the height from the anal bed 98 matches the height from the placement surface 100f1 of the outlet 102 of the case 100. The fixing of the case 100 using the fixing arm 93 is not limited to the bed 98.

[0143] In the present embodiment, it has been shown that the rotating cylinder 12 is inserted into the large intestine. Not limited to this, in the medical endoscope apparatus 1, it goes without saying that the rotating cylinder 12 may be inserted anywhere within the body cavity. In this case as well, the same effect as in the present embodiment can be obtained.

Furthermore, even if this embodiment is applied not only to medical use but also to an industrial endoscope, the same effect as this embodiment can be obtained.

[0145] Although the embodiments of the present invention have been described above, it is needless to say that various changes can be made without departing from the spirit of the present invention, which is not limited to the above-described embodiments.

Claims

The scope of the claims

[1] An endoscope apparatus that performs at least one of a force for inserting the endoscope insertion portion into a test site and a force for removing the skin inspection site by rotating the elongated endoscope insertion portion. The endoscope insertion portion is formed by at least two opposing surfaces through which the uninserted portion of the endoscope insertion portion is inserted into at least a part of the non-insertion portion of the endoscope insertion portion to the test site. An endoscopic apparatus comprising an insertion assisting tool having a defined space

[2] The interval between the two opposing surfaces of the insertion assisting tool is larger than the outer diameter of the endoscope insertion portion and smaller than twice the outer diameter of the endoscope insertion portion. The endoscope apparatus according to Item 1.

[3] The non-inserted portion of the endoscope insertion portion that is inserted into the space of the insertion assisting tool is disposed in the space with a free-form surface shape. The endoscope apparatus according to Item 1 or 2.

[4] The inside according to any one of claims 1 to 3, wherein the insertion assisting tool is formed with an opening through which at least a part of an uninserted portion of the endoscope insertion portion enters and exits. Endoscopic device.

[5] The endoscope according to any one of claims 1 to 4, wherein the insertion assisting tool is a closing member that covers at least a part of the uninserted portion of the endoscope insertion portion. apparatus.

[6] The opposing surface of the endoscope insertion portion of the insertion assisting tool is formed by a surface having a lower friction coefficient than the friction coefficient of the surface constituting the outer periphery of the endoscope insertion portion. The endoscope apparatus according to any one of claims 1 to 5.

7. The endoscope apparatus according to claim 1, wherein the insertion assisting tool is provided with a fixing member for fixing the insertion assisting tool on a mounting surface. .

8. The endoscope according to any one of claims 1 to 7, wherein the insertion assisting tool is detachable with respect to at least a part of the uninserted portion of the endoscope insertion portion. Mirror device

[9] The propulsion generating member for propelling the insertion of the endoscope insertion portion into the test site is provided in the opening of the insertion assisting tool! The endoscope apparatus according to 8 of above.

[10] The opening of the insertion aid is provided with a covering member that covers a portion of the endoscope insertion portion that has not been inserted and is outside the insertion aid. The endoscope apparatus according to any one of claims 4 to 9.

[11] The variable insertion mechanism according to any one of [4] to [10], wherein the insertion assisting tool is provided with a variable mechanism that varies the height of the opening of the insertion assisting tool from the mounting surface. Endoscopic device.

[12] The endoscope apparatus according to any one of [1] to [11], wherein the insertion aid is provided with a fixing means for fixing the insertion aid.

[13] An endoscope of an endoscope apparatus, characterized in that the insertion assisting tool according to any one of claims 1 to 12 is provided in at least a part of the uninserted portion of the endoscope insertion portion. Insertion section.

[14] An insertion assisting tool for an endoscope insertion portion, which is provided in at least a part of the uninserted portion of the endoscope insertion portion according to [13].