CN101263998B - Endoscope apparatus - Google Patents
Endoscope apparatus Download PDFInfo
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- CN101263998B CN101263998B CN2008100865260A CN200810086526A CN101263998B CN 101263998 B CN101263998 B CN 101263998B CN 2008100865260 A CN2008100865260 A CN 2008100865260A CN 200810086526 A CN200810086526 A CN 200810086526A CN 101263998 B CN101263998 B CN 101263998B
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- Prior art keywords
- sacculus
- coating material
- endoscope
- assistive device
- outer peripheral
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- 238000003780 insertion Methods 0.000 claims abstract description 156
- 230000037431 insertion Effects 0.000 claims abstract description 155
- 239000011248 coating agent Substances 0.000 claims abstract description 119
- 238000000576 coating method Methods 0.000 claims abstract description 119
- 239000000463 material Substances 0.000 claims abstract description 99
- 230000001050 lubricating effect Effects 0.000 claims abstract description 57
- 230000002093 peripheral effect Effects 0.000 claims description 62
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 230000000968 intestinal effect Effects 0.000 description 28
- 239000007789 gas Substances 0.000 description 20
- 238000005452 bending Methods 0.000 description 12
- 229920002635 polyurethane Polymers 0.000 description 8
- 239000004814 polyurethane Substances 0.000 description 8
- 230000008719 thickening Effects 0.000 description 8
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 5
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 5
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 5
- 208000002925 dental caries Diseases 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- NNJVILVZKWQKPM-UHFFFAOYSA-N Lidocaine Chemical compound CCN(CC)CC(=O)NC1=C(C)C=CC=C1C NNJVILVZKWQKPM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 244000208734 Pisonia aculeata Species 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229960004194 lidocaine Drugs 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000004006 olive oil Substances 0.000 description 2
- 235000008390 olive oil Nutrition 0.000 description 2
- 229950000845 politef Drugs 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 0 C[C@@]1C=*(C*)CC1 Chemical compound C[C@@]1C=*(C*)CC1 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- 241000404068 Cotula Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 210000001198 duodenum Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 229920002050 silicone resin Polymers 0.000 description 1
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- 229940072358 xylocaine Drugs 0.000 description 1
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Abstract
The invention provides an endoscope apparatus which coating thickness is thicker from a base end to a tip portion for hydrophilicity coating material coated in inner circumferential of resin pipe as base material of an insertion aid. Consequently, the invention provides the endoscope apparatus which can improve insert ability of an insert assistant appliance relative to organism, and can keep lubricating coating in inner circumferential of the insert assistant appliance with a long time and is used for a long period.
Description
The application be that June 14, application number in 2005 are 2005100764815 the applying date, name is called the dividing an application of application of " endoscope apparatus ".
Technical field
The present invention relates to a kind of endoscope apparatus, particularly relate to a kind of endoscope apparatus of the endoscope of sacculus being installed on the top, insertion section and the insertion section of this endoscope being guided to endoceliac insertion assistive device that has.
Background technology
When the insertion section of endoscope being inserted into deep such as small intestinal digestive tract, if only advance the insertion section merely, because the bending of intestinal complexity, can cause power to be difficult to be passed to the top of insertion section, to the insertion in deep difficulty relatively.Therefore a kind of endoscope apparatus has been proposed, install in the insertion section of endoscope and to be referred to as the insertion assistive device of sleeve pipe or sliding tube and to be inserted in the body cavity, insert assistive device guiding insertion section by this, prevent the unnecessary bending or the deflection (for example, patent documentation 1) of insertion section thus.
In addition, in the endoscope apparatus in the past, known have the top ends at endoscope insertion part that the 1st sacculus is provided with two sacculus formulas of the 2nd sacculus simultaneously in the top ends of inserting assistive device endoscope apparatus (for example, patent documentation 2 and 3) is set.
Endoscope apparatus with two sacculus formulas, specific length is inserted to intestinal in insertion section and insertion assistive device, under making the 1st and the 2nd inflation and the 1st and the 2nd sacculus being fixed on state on the intestinal wall, sometimes by insertion section and the insertion assistive device of pulling back simultaneously, make crooked intestinal be shrunk to straight operation.Then, by the insertion operation of carrying out the insertion section in order repeatedly, insertion operation and the above-mentioned pullback operation of inserting assistive device, the intestinal that furthers is inserted into the purpose position to the insertion section.
In this operation, endoscope insertion part relatively moves forward and backward with inserting assistive device, so the friction between them greatly influences operability.Therefore, past is the lubricating coating material that applies hydrophilic coating etc. to the inner peripheral surface that inserts assistive device equably, frictional resistance with between the outer peripheral face that reduces endoscope insertion part and the inner peripheral surface that inserts assistive device improves the insertion that endoscope insertion part inserts assistive device relatively.In addition, apply the lubricating coating material of hydrophilic coating etc. equably,, improve the insertion of inserting the relative intestinal wall of assistive device to reduce the frictional resistance that inserts between assistive device and the intestinal wall to the outer peripheral face that inserts assistive device.
But, the endoscope apparatus in above-mentioned past, it inserts assistive device and constitutes with uniform rigidity from the base end part to the top ends, so when the insertion assistive device is inserted into crooked intestinal (organism), exist push-on force to be difficult to be passed to the top of assistive device, insert the problem of the insertion difference of assistive device.In addition, the insertion assistive device is owing to the Plug Action of endoscope insertion part causes its top inner peripheral surface to bear the big frictional resistance that endoscope insertion part causes, so shortcoming is hydrophilic coating material all wearing and tearing in early days of top inner peripheral surface.
Patent documentation 1: the spy opens flat 10-248794 communique;
Patent documentation 2: the spy opens the 2001-340462 communique.
Patent documentation 3: the spy opens the 2002-301019 communique.
Summary of the invention
The present invention In view of the foregoing proposes just, its purpose is, provide a kind of can improve the insertion of inserting the relative organism of assistive device and make inserting permanent maintenance of lubricating coating material of applying on assistive device, the endoscope insertion part can life-time service endoscope apparatus.
In order to achieve the above object, one of the present invention's endoscope apparatus comprises endoscope and inserts the insertion assistive device of logical above-mentioned endoscope insertion part from its base end part, it is characterized in that, be coated with the lubricating coating material at the outer peripheral face of above-mentioned endoscope insertion part and/or the inner peripheral surface of above-mentioned insertion assistive device, above-mentioned lubricating coating material makes the thickness of top ends side of the outer peripheral face of above-mentioned endoscope insertion part and/or above-mentioned insertion assistive device thicker than the thickness of base end part side.
One of according to the present invention, for at the outer peripheral face of endoscope insertion part and/or insert the lubricating coating material that applies on the inner peripheral surface of assistive device, owing to make the outer peripheral face of endoscope insertion part and/or insert the thickness of top ends side of assistive device thicker, stand life-time service so can keep the lubricating coating material for a long time than the thickness of base end part side.
Endoscope apparatus for one of the present invention, the present invention's two is characterised in that, above-mentioned lubricating coating material be coated with than thickness portion be from the top ends of above-mentioned insertion assistive device to the total length about 1/3rd of the above-mentioned insertion assistive device of base end part to the scope of half roughly.Compare the top ends friction of the endoscope insertion part of its top ends and insertion and wearing and tearing acutely with the base end part that inserts assistive device.Therefore, compare, the overlapping more coating lubricating coating of top ends and near portion thereof material with other parts.If overlapping coating lubricating coating material in gamut, then lubricating coating material thickening is up to otiose part, thus when inserting crooked especially easily top ends to 3/1 and even roughly half thickens.This is the top ends of the endoscope insertion part because crooked part especially rubs.
For one of the present invention's endoscope apparatus, the present invention's three is characterised in that, the applied thickness of above-mentioned lubricating coating material from the top ends of above-mentioned insertion assistive device to base end part attenuation gradually.So, even coating lubricating coating material also can obtain and the present invention's two same effects.
For one of the present invention, the present invention's four is characterised in that, the part that the applied thickness of above-mentioned lubricating coating material is thicker is the head portion of above-mentioned endoscope insertion part, is when the insertion of endoscope insertion part operation or the length part of the top ends plug of above-mentioned relatively insertion assistive device when extracting operation.The insertion section of this length part is the part of slipping with interior all bights of the peristome that forms in the top ends of inserting assistive device, from lubricating coating material angle, is part stressed on direction of delaminate.Thereby, thicker by the thickness that makes the lubricating coating material that is coated in above-mentioned length part at least than other parts, can reach purpose of the present invention, promptly keep the lubricating coating material for a long time and stand life-time service.
The present invention's five endoscope apparatus comprises endoscope and inserts the insertion assistive device of logical above-mentioned endoscope insertion part from its base end part, it is characterized in that, above-mentioned insertion assistive device inboard is by hardened member, the outside is made of soft member, the thickness of the top ends side of inboard hardened member is than the thin thickness of base end part side, the thickness of the top ends side of the soft member in the outside is thicker than the thickness of base end part side, by the soft member in the inboard hardened member and the outside is harmonious, make the wall thickness that inserts assistive device certain in length range, scribble the lubricating coating material on the hardened member of inboard, above-mentioned lubricating coating material makes the thickness of the top ends side of inserting assistive device thicker than the thickness of base end part side.
According to the present invention five, about inserting assistive device, inboardly constitute by 2 kinds of members of soft member by hardened member, the outside.In addition, the thickness of the top ends side of inboard hardened member is than the thin thickness of base end part side, and the soft member in the outside is harmonious with it conversely simultaneously, makes the wall thickness that inserts assistive device certain in length range thus, improves the flexibility of top ends thus.Like this, the counteracting force when top ends is crooked reduces, so and the reduction of the frictional resistance between the organism of bending, the insertion raising of inserting the relative organism of assistive device.In addition,, make the thickness of top ends side thicker, stand life-time service so can keep the lubricating coating material for a long time than the thickness of base end part side about being coated in the lubricating coating material on the inboard hardened member.And then, make the top ends of endoscope insertion part be absorbed in the inner face that inserts assistive device by hardened member being disposed at the inboard, rare when this situation is soft member than inner face, insert the general character so further improve.
The present invention's six endoscope apparatus, the insertion assistive device that sacculus has been installed in top ends when colluding is inserted from its base end part in the insertion section that comprises endoscope, and above-mentioned sacculus connects airtight in body cavity by expansion, it is characterized in that, at the outer peripheral face coating lubricating coating material of above-mentioned insertion assistive device, the coefficient of friction of the above-mentioned relatively sacculus of coefficient of friction of the outer peripheral face of the insertion assistive device of this coating is set to 5～30%.
According to the present invention six, by inserting coating lubricating coating material on the outer peripheral face of assistive device, reduce the frictional resistance of relative body cavity wall, guarantee the suitable frictional resistance of sacculus regulation of big frictional resistance simultaneously relatively.That is, the relative frictional resistance of sacculus is defined as 5～30% with the frictional resistance of outer peripheral face that is coated with the insertion assistive device of lubricating coating material.If this frictional resistance is below 5%, relatively operation is inserted patient's the hands of assistive device and too smooth, so become the reason of maloperation.In addition, if frictional resistance is more than 30%, the plug variation of relative body cavity wall.Thereby, above-mentioned frictional resistance is defined as the present invention of 5～30%, the plug of the insertion assistive device of relative body cavity is carried out well.
The present invention's seven endoscope apparatus, the top ends that is included in the insertion section is equipped with the endoscope of sacculus, and above-mentioned sacculus connects airtight in body cavity by expansion, it is characterized in that, the outer peripheral face coating lubricating coating material of the insertion section of above-mentioned endoscope, the coefficient of friction of the above-mentioned relatively sacculus of the coefficient of friction of the outer peripheral face of the insertion section that this is coated is set to 5～30%.
According to the present invention seven, by coating lubricating coating material on the outer peripheral face of endoscope insertion part, the frictional resistance of relative body cavity wall is descended, regulation guarantees that relatively the sacculus of big frictional resistance has suitable frictional resistance simultaneously.That is, the relative frictional resistance of sacculus is defined as 5～30% with the frictional resistance of outer peripheral face that is coated with the endoscope insertion part of lubricating coating material.If its frictional resistance is below 5%, the patient's of operation insertion assistive device hands is too smooth relatively, so become the reason of maloperation.In addition, if its frictional resistance is more than 30%, the plug variation of relative body cavity wall.Thereby, above-mentioned frictional resistance is defined as the present invention of 5～30%, the plug of the endoscope insertion part of relative body cavity is carried out well.
In order to achieve the above object, the present invention's eight endoscope apparatus, the top ends that is included in the insertion section is equipped with the endoscope of the 1st sacculus and covers above-mentioned insertion section and guide the insertion of above-mentioned insertion section that the insertion assistive device of the 2nd sacculus is installed in top ends simultaneously, the 1st sacculus and the 2nd sacculus connect airtight in body cavity by expansion, it is characterized in that, at the outer peripheral face coating lubricating coating material of above-mentioned insertion assistive device, the coefficient of friction of above-mentioned relatively the 2nd sacculus of coefficient of friction of the outer peripheral face of the insertion assistive device that this is coated is set to 5～30%.
The present invention's eight is to be included in that top ends is equipped with the endoscope of the 1st sacculus and to be object at the endoscope apparatus that top ends is equipped with the insertion assistive device of the 2nd sacculus.In this endoscope apparatus, be the coefficient of friction of outer peripheral face that has applied the insertion assistive device of lubricating coating material at the outer peripheral face that inserts assistive device, be set to 5～30% with respect to the coefficient of friction of the 2nd sacculus of uncoated lubricating coating material.
Endoscope apparatus with the 1st sacculus and the 2nd sacculus because push often, becomes important so reduce the frictional resistance of the outer peripheral face of the insertion assistive device that contacts with the wall of body cavity in body cavity.On the other hand, when the 2nd inflation and when connecting airtight the body cavity wall, guarantee with the friction of body cavity wall and obtain sufficient retentivity to become important.
Under such background, by coating lubricating coating material on the outer peripheral face that inserts assistive device, when making the frictional resistance decline of relative body cavity wall, regulation guarantees that relatively the 2nd sacculus of big frictional resistance has suitable frictional resistance.That is, the frictional resistance of relative the 2nd sacculus is defined as 5～30% with the frictional resistance of outer peripheral face that has applied the insertion assistive device of lubricating coating material.If this frictional resistance is below 5%, relatively operation is inserted patient's the hands of assistive device and too smooth, so become the reason of maloperation.In addition, if frictional resistance is more than 30%, the plug variation of relative body cavity wall.Thereby, above-mentioned frictional resistance is defined as the present invention of 5～30% plug of the insertion assistive device of relative body cavity is carried out well.
The present invention eight in, the present invention's nine is characterised in that, coating lubricating coating material on the outer peripheral face of the insertion section of above-mentioned endoscope, the coefficient of friction of above-mentioned relatively the 1st sacculus of the coefficient of friction of the outer peripheral face of the insertion section that this has applied is set to 5～30%.
According to the present invention nine, by at the outer peripheral face of endoscope insertion part coating lubricating coating material, the frictional resistance of relative body cavity wall is descended, regulation guarantees that relatively the sacculus of big frictional resistance has suitable frictional resistance simultaneously.That is, the relative frictional resistance of sacculus is defined as 5～30% with the frictional resistance of outer peripheral face that scribbles the endoscope insertion part of lubricating coating material.If this frictional resistance is below 5%, relatively operation is inserted patient's the hands of assistive device and too smooth, so become the reason of maloperation.In addition, if frictional resistance is more than 30%, the plug variation of relative body cavity wall.Thereby, above-mentioned frictional resistance is defined as the present invention of 5～30%, the plug of the endoscope insertion part of relative body cavity is carried out well.
According to endoscope apparatus of the present invention, for the outer peripheral face that is coated in endoscope insertion part and/or insert the lubricating coating material of the inner peripheral surface of assistive device, since make the outer peripheral face of endoscope insertion part and/or insert the thickness of top ends side of assistive device thicker than the thickness of base end part side, so can keep the lubricating coating material for a long time and stand life-time service.
In addition, about inserting assistive device, the inboard is made of 2 kinds of members of soft member hardened member, the outside, the thickness of the top ends side by making inboard hardened member is than the thin thickness of base end part side, simultaneously the soft member in the outside be harmonious with it conversely and make the wall thickness that inserts assistive device length range necessarily in, improve the flexibility of direction of insertion top ends, so the counteracting force of direction of insertion top ends when bending reduces.So, and the frictional resistance between the organism of bending reduces the insertion raising of the relative organism of insertion assistive device.
And then, according to the endoscope apparatus of the present invention that comprises the 1st sacculus and the 2nd sacculus, the frictional resistance of relative the 2nd sacculus, the frictional resistance of outer peripheral face that is coated with the insertion assistive device of lubricating coating material is defined as 5～30%, so slotting the taking off well of inserting the relative body cavity of assistive device carried out.
Description of drawings
Fig. 1 is system's pie graph of expression endoscope apparatus of the present invention.
Fig. 2 is the axonometric chart of top ends of the insertion section of expression endoscope.
Fig. 3 is the axonometric chart of top ends that the insertion section of the 1st sacculus is equipped with in expression.
Fig. 4 is the telescopic sectional view of expression.
Fig. 5 is the key diagram of the operational approach of expression endoscope apparatus of the present invention.
Fig. 6 is the cutaway view of telescopic the 1st example of the thickness of expression base material and hydrophilic coating material.
Fig. 7 is the cutaway view of telescopic the 2nd example of the thickness of expression base material and hydrophilic coating material.
Fig. 8 be the thickness of the expression hydrophilic coating material that makes the insertion section from base end part gradually to the partial sectional view of the example of top ends thickening.
Fig. 9 is that the thickness of the expression hydrophilic coating material that makes the insertion section is only at the partial sectional view of the example of head portion thickening.
Among the figure: 10-endoscope, 12-insertion section, 14-hand-held portion, 26-sacculus air taking port, 28-air are supplied with and are attracted mouth, 30-the 1st sacculus, the 36-top ends, 50-sleeve pipe, 51-tube body (pitch tube), the 52-grip part, 54-sacculus air taking port, 60-the 2nd sacculus, 80-hydrophilic coating material, 100-balloon control apparatus, 102-apparatus main body, the 104-hand switch, 110,120-pipe.
The specific embodiment
According to the following drawings, the preferred implementation of endoscope apparatus of the present invention is described.
Fig. 1 is system's pie graph of of the present invention pair of sacculus formula endoscope apparatus.Two sacculus formula endoscope apparatus shown in this figure are by endoscope 10, sleeve pipe (insertion assistive device) 50, and balloon control apparatus 100 constitutes.
Endoscope 10 possesses to be had hand-held portion 14 and be connected the insertion section 12 that is provided with in this hand-held portion 14.In hand-held portion 14, be connected with general lead 15, the not shown processor of connection or the adapter (not shown) of light supply apparatus are set on the top of general lead 15.
Be set side by side with the water button 16 of supplying gas, attraction button 18, shutter release button 20 by patient's operation in hand-held portion 14, a pair of angle knob 22,22 and pliers insertion section 24 are arranged on the assigned position respectively simultaneously.And, in hand-held portion 14, also being provided with sacculus air taking port 26, it is used for sending to air or attracting air from sacculus 30 to the 1st sacculus 30.
As shown in Figure 2, the assigned position on the top end face 37 of top ends 36 is provided with objective lens optical system 38, a pair of illuminating mirror 40,40, the delivery nozzle 42 of supplying gas, forceps channel 44 etc.In addition, the outer peripheral face of top ends 36 is provided with as Fig. 2, air supply shown in Figure 3 and attracts mouth 28, and this air is supplied with and attracted mouth 28 by inserting the not shown air supply pipe that leads in the insertion section 12, is communicated with the sacculus air taking port 26 of Fig. 1.Therefore,, supply with attraction mouthful 28 blow gas, on the other hand,, attract mouth 28 to attract gases and can supply with from air by attracting gases from sacculus air taking port 26 from the air of top ends 36 by to sacculus air taking port 26 supply gas.
As shown in Figure 1, on the top ends 36 of insertion section 12, the 1st sacculus 30 that can freely load and unload and be made of elastomers such as rubber is housed.As shown in Figure 3, the 1st sacculus 30 is formed by the bulge 30c of central authorities and the 30a of suit portion, the 30b at its two ends, so that air is supplied with the mode of the inboard that attracts mouth 28 to be positioned at bulge 30c and is installed in top ends 36 sides.The diameter of the 30a of suit portion, 30b is less than the diameter of top ends 36, connect airtight on top ends 36 by its elastic force after, twine not shown line and fix.And, being not limited to use being fastened of line, also can be fixed on the top ends 36 by Fixing shrink ring being contained in the last 30a of suit portion, the 30b of making of the 30a of suit portion, 30b.
Be installed in the 1st sacculus 30 on the top ends 36, spherical by attracting mouthful 28 blow gas that bulge 30c is roughly expand into from air supply shown in Figure 2.On the other hand, attract gases, bulge 30c is shunk and connect airtight on the outer peripheral face of top ends 36 by supply with to attract mouthfuls 28 from air.
On the other hand, the pliability pitch tube that tube body 51 will be made of carbamate etc. is as base material, the outer peripheral face of this base material is applied as uniform thickness with hydrophilic coating material (lubricating coating material), and inner peripheral surface is applied as specific thickness with the hydrophilic coating material simultaneously.Wherein, as described later at the hydrophilic coating material of inner peripheral surface coating.As the hydrophilic coating material, can be illustrated as polyvinylpyrrolidone, acrylic resin, silicone resin.
On the base end side of tube body 51, be provided with sacculus air taking port 54.Connecting internal diameter on the sacculus air taking port 54 is air supply pipe 56 about 1mm, and this pipe 56 is bonded on the outer peripheral face of tube body 51, and extension is set to the top ends of tube body 51.
As shown in Figure 4, the top 58 of tube body 51 forms thin head shapes.In addition, on the base end side on the top 58 of tube body 51, the 2nd sacculus 60 that is made of elastomers such as rubber is housed.The 2nd sacculus 60 is to install under the state that tube body 51 connects, and is made of the bulge 60c of central authorities and the 60a of suit portion, the 60b at its two ends.The 60a of suit portion of tip side turns back in the inside of bulge 60c, and the 60a of suit portion that this turns back is twined and is fixed on the tube body 51 by X line radiography line 62.The 60b of suit portion of base end side is configured in the outside of the 2nd sacculus 60, is twined and is fixed on the tube body 51 by line 64.
Bulge 60c glomeration roughly under naturalness (both states that expands and also do not shrink), its size is greater than the size of the 1st sacculus 30 under naturalness (both states that expands and also do not shrink).Therefore, when with identical pressure when the 1st sacculus 30 and the 2nd sacculus 60 are supplied gas, the external diameter of the bulge 60c of the 2nd sacculus 60 is greater than the external diameter of the bulge 30c of the 1st sacculus 30.For example, when the external diameter of the 1st sacculus 30 was φ 25mm, the external diameter of the 2nd sacculus 60 was φ 50mm.
Above-mentioned pipe 56 forms opening in the inside of bulge 60c, supplies with attraction mouth 57 thereby form air.Thereby, when from sacculus air taking port 54 air supplies, supply with attraction mouthful 57 blow out air from air, bulge 60c is expanded.In addition, when from sacculus air taking port 54 attraction air, supply with attraction mouthful 57 attraction air, 60 contractions of the 2nd sacculus from air.But, the symbol 66 of Fig. 1 is the inlets that are used in tube body 51 injecting lubricating fluid such as water.
On the other hand, balloon control apparatus 100 is the 1st sacculus 30 to be carried out gas etc. is fluidic to be provided, attract, and the fluidic devices that provide, attract such as gas are provided the 2nd sacculus 60.Balloon control apparatus 100 is made of the apparatus main body 102 that possesses not shown pump or sequencer etc., the hand switch 104 that is used for remote manipulation.
On and off switch SW1, shutdown switch SW2 are set on the front panel of apparatus main body 102, be used for the 1st sacculus 30 piezometer 106, be used for the piezometer 108 of the 2nd sacculus 60.In addition, on the front panel of apparatus main body 102, installed the 1st sacculus 30 is carried out pipe 110 that gas provides, attracts and the 2nd sacculus 60 is carried out the pipe 120 that gas provides, attracts.Stage casing at each pipe 110,120 is provided with fluid accumulation groove 130,140 respectively, and it is used for accumulating from the body fluid of the 1st sacculus the 30, the 2nd sacculus 60 anti-streams when breakage appears in the 1st sacculus the 30, the 2nd sacculus 60.
On the other hand, hand switch 104 is provided with: the ON/OFF switch SW 6 of the pressurization/decompression of the shutdown switch SW3 identical with the shutdown switch SW2 of apparatus main body 102 sides, the ON/OFF switch SW 4 that supports the pressurization/decompression of the 1st sacculus 30, the pause switch SW5 that is used to keep the pressure of the 1st sacculus 30, support the 2nd sacculus 60, be used to keep the pause switch SW7 of the pressure of the 2nd sacculus 60.This hand switch 104 is connected electrically on the apparatus main body 102 by cable 150.
The balloon control apparatus 100 of Gou Chenging provides gas and makes their expansions to the 1st sacculus 30 and the 2nd sacculus 60 as mentioned above, controls its air pressure simultaneously and the state of keep expanding the 1st sacculus 30 and the 2nd sacculus 60.In addition, attract gas and they are shunk, control its air pressure simultaneously and the state of remain retracted the 1st sacculus 30 and the 2nd sacculus 60 from the 1st sacculus 30 and the 2nd sacculus 60.
Then, according to Fig. 5 (a)～(h) operational approach of two sacculus formula endoscope apparatus is described.
At first, shown in Fig. 5 (a), covering with sleeve pipe 50 under the state of insertion section 12, insertion section 12 is being inserted in the intestinal (for example descendant duodenum) 70.At this moment, make the 1st sacculus 30 and the 2nd sacculus 60 be in contraction state.
Then, shown in Fig. 5 (b), be inserted on the top 58 of sleeve pipe 50 under the state of bending section of intestinal 70, gas be provided and make its expansion to the 2nd sacculus 60.Thus, the 2nd sacculus 60 cards end in intestinal 70, and the top 58 of sleeve pipe 50 is fixed in the intestinal 70.
Then, shown in Fig. 5 (c), only the insertion section 12 of endoscope 10 is inserted into the deep of intestinal 70.Then, shown in Fig. 5 (d), gas is provided and makes it expansion to the 1st sacculus 30.Thus, the 1st sacculus 30 is fixed in the intestinal 70.At this moment, the size when the 1st sacculus 30 expands is less than the 2nd sacculus 60, so it is less to impose on the burden of intestinal 70, thereby can prevent intestinal 70 damages.
Then, attract gas and the 2nd sacculus 60 is shunk, shown in Fig. 5 (e), push sleeve pipe 50 then, and make it 12 insertions along the insertion section from the 2nd sacculus 60.Then, the top 58 of sleeve pipe 50 is pushed into the 1st sacculus 30 near after, shown in Fig. 5 (f), gas is provided and makes its expansion to the 2nd sacculus 60.Thus, the 2nd sacculus 60 is fixed in the intestinal 70.That is, grip intestinal 70 by the 2nd sacculus 60.
Then, shown in Fig. 5 (g), the sleeve pipe 50 of pulling back.Thus, intestinal 70 roughly shrinks as the crow flies, the unnecessary deflection of sleeve pipe 50 or crooked the disappearance.And when pulling back sleeve pipe 50, the 1st sacculus 30 and the 2nd sacculus 60 all block and end in intestinal 70, but the frictional resistance of the 1st sacculus 30 is less than the frictional resistance of the 2nd sacculus 60.Therefore, even the 1st sacculus 30 and the 2nd sacculus 60 are relative to separately moving, little the 1st sacculus 30 of frictional resistance also relatively intestinal 70 slide, so intestinal 70 can be not impaired because of the tractive of two sacculus 30,60.
Then, shown in Fig. 5 (h), attract gas and the 1st sacculus 30 is shunk from the 1st sacculus 30.Then, as much as possible the top ends 36 of insertion section 12 is inserted into the deep of intestinal 70.That is, carry out the insertion operation shown in Fig. 5 (c) once more.Thus, the top ends 36 of insertion section 12 can be inserted into the deep of intestinal 70.When further insertion section 12 being inserted into the deep, after carrying out the fixing operation shown in Fig. 5 (d), carry out the push operation shown in Fig. 5 (e), so carry out the holding operation shown in Fig. 5 (f) repeatedly in order, the pullback operation shown in Fig. 5 (g), the operation of the insertion shown in Fig. 5 (h) get final product.Thus, can further be inserted into insertion section 12 deep of intestinal 70.
In possessing two sacculus formula endoscope apparatus of such sleeve pipe 50,, make sleeve pipe 50 long lifetimes of embodiment by improving the slotting general character and the permanent hydrophilic coating material that keeps in the intestinal (organism) 70 of bending.
Promptly, as shown in Figure 6, in pitch tube (using the symbol identical 51 to represent for convenience here) 51 with tube body as the base material of sleeve pipe 50, about the hydrophilic coating material 80 that applies on the side face within it so that thickness from base end part to top 58 gradually the mode of thickening apply.Like this, can keep comprising near its hydrophilic coating 80 on top 58 for a long time, and stand life-time service.
As shown in Figure 6, change hydrophilic coating material 80 thickness part, relatively the length of pitch tube 51 total lengths be from the top 58 beginnings to cardinal extremity about 1/3 to roughly 1/2.The top ends of sleeve pipe 50 is compared with its base end part, more weares and teares more violently with top ends 36 frictions of the endoscope insertion part 12 that inserts.Therefore, compare, top ends and near the overlapping more coating lubricating coating of part material 80 thereof with other parts.When overlapping coating lubricating coating material 80 on whole sleeve pipe 50, hydrophilic coating material 80 thickens until otiose part, so that to fashionable crooked especially easily top ends to 1/3 of body cavity interpolation and even the part thickening of half roughly.This is because sweep especially rubs with the top ends 36 of endoscope insertion part 12.The maneuver that changes the thickness of hydrophilic coating material 80 is on pitch tube 51 after the coating hydrophilic coating material 80, can be only by making pitch tube 51 top 58 infra and carry out drying and realize.That is, this is because in the dry run of hydrophilic coating material 80, and hydrophilic coating material 80 is because deadweight and the sagging drying of carrying out simultaneously, and the thickness of hydrophilic coating material 80 is more to top 58 thickening more thus.In addition, though the thickness of hydrophilic coating material from cardinal extremity to top 58 thickening gradually, also can obtain same effect.
Fig. 7 is the cutaway view of other embodiment of the sleeve pipe 50 of presentation graphs 6.The pitch tube 51 of the sleeve pipe 50 of Fig. 7, its inboard is made of 2 kinds of members of soft member 51B hardened member 51A, the outside.In addition, the thickness of top 58 sides of hardened member 51A is than the thin thickness of base end side, and soft member 51B is opposite with it simultaneously, is harmonious by the outer peripheral face with hardened member 51A, make the wall thickness of sleeve pipe 50 certain in length range, improve the flexibility of top 58 sides of sleeve pipe 50.
Like this, because top ends 58 and near counteracting force thereof reduce, so and the reduction of the frictional resistance between the organism of bending, the insertion raising of sleeve pipe 50 relative organisms.In addition, the hydrophilic coating material 80 about the inner peripheral surface that is coated in hardened member 51A equally makes the thickness of top 58 sides thicker than the thickness of base end side with Fig. 6, stands life-time service so can keep hydrophilic coating material 81 for a long time.And then by hardened member 51A is disposed at the inboard, the top ends 36 of endoscope insertion part 12 is absorbed in the inner face of sleeve pipe 50, and is rare when this situation is soft member than inner face, so further improve the slotting general character of endoscope insertion part 12.
Wherein, in embodiment,, but be not limited to this, the sliding tube that also can use per anum to insert as the sleeve pipe 50 that inserted the assistive device illustration.
Fig. 8 be illustrated in coating hydrophilic coating material 80 on the outer peripheral face of endoscope insertion part 12 and this hydrophilic coating material 80 thickness from the insertion section 12 base end part (end that is connected with the hand-held portion 14 of Fig. 1) to top ends (end of the 1st sacculus 30 is installed) 13 partial sectional view of the example of thickening gradually.
Like this, about the hydrophilic coating material 80 on the outer peripheral face that is coated in endoscope insertion part 12, the thickness of direction of insertion top ends 13 sides by making endoscope insertion part 12 is thicker than the thickness of direction of insertion base end part side, can keep hydrophilic coating material 80 for a long time and stands life-time service.By being used in combination the endoscope insertion part 12 and the sleeve pipe that applies hydrophilic coating material 80 50 shown in Fig. 6,7 that applies hydrophilic coating material 80, can further prolong the service life of both sides' lubricating coating material 80.
Fig. 9 is a partial sectional view of representing only to make the example that the thickness of the hydrophilic coating material 80 of endoscope insertion part 12 thickens at head portion.In the figure, the part that the applied thickness of hydrophilic coating material 80 is thicker is the direction of insertion head portion of endoscope insertion part 12, is the part 12A of length L of top 58 plug of relative sleeve pipe 50.In insertion section 12, part 1 2A of this length L is the part that interior all bight 59A of the peristome 59 that forms with top 58 at sleeve pipe 50 slip, and from lubricating coating material 80, is part stressed on direction of delaminate.Thereby, thicker by the thickness that makes the hydrophilic coating material 80 that on the part 12A of length L, applies at least than other parts, can reach purpose of the present invention, promptly keep hydrophilic coating material 80 for a long time and stand life-time service.
On the other hand, as shown in Figure 6, outer peripheral face at sleeve pipe 50 also applies lubricating coating material 80, and the coefficient of friction of the outer peripheral face of the sleeve pipe 50 of this coating is set to 5～30% with respect to the coefficient of friction on the surface of the 2nd sacculus 60 of uncoated lubricating coating material.In embodiment, the lubricating coating material 80 of sleeve pipe 50 be polyvinylpyrrolidone (frictional resistance μ: 0.08), the 2nd sacculus 60 be natural rubber (frictional resistance μ: 0.5), so be set at 16%.
But the two sacculus formula endoscope apparatus with the 1st sacculus 30 and the 2nd sacculus 60 push often to endoceliac, become important so reduce the frictional resistance of the outer peripheral face of the sleeve pipe 50 that contacts with the body cavity wall.On the other hand, expand and when connecting airtight in the body cavity wall at the 2nd sacculus 60, guarantee and the body cavity wall between friction and obtain sufficient retentivity and become important.
Under such background, by coating lubricating coating material on the outer peripheral face of sleeve pipe 50, when the frictional resistance that makes relative body cavity wall descended, regulation guaranteed that relatively the 2nd sacculus 60 of big frictional resistance has suitable frictional resistance.That is, the frictional resistance of relative the 2nd sacculus 60 is defined as 5～30% with the frictional resistance of outer peripheral face that applies the sleeve pipe 50 of lubricating coating material.If this frictional resistance is below 5%, sleeve pipe 50 is with respect to patient's the hands of operation sleeve pipe 50 and too smooth, so become the reason of maloperation.In addition, if frictional resistance is more than 30%, the plug variation of relative body cavity wall.Thereby, by above-mentioned frictional resistance is defined as 5～30%, the plug of sleeve pipe 50 relative body cavitys is carried out well.And then, by being defined as 12～16%, the plug of sleeve pipe 50 relative body cavitys is carried out more well.
Although be repeat specification, but as shown in Figure 5, the sleeve pipe 50 of two sacculus formula endoscope apparatus that relative intestinal (body cavity) 70 moves around repeatedly, except relative endoscope insertion part 12 has the sliding, also need (1) sliding height of body cavity walls relatively, (2) have the flexibility of appropriateness, the toughness that (3) have appropriate intensity.
As the base material of sleeve pipe 50, can be enumerated as politef, polyurethanes, vinyl chloride, synthetic rubber, although politef has essential condition (1), (3), do not satisfy essential condition (2).In addition,, do not satisfy essential condition (1),, do not satisfy essential condition (1), (3) although synthetic rubber satisfies essential condition (2) although polyurethanes and vinyl chloride satisfy essential condition (2), (3).Therefore,, think by being coated with the lubricating coating material at its outer peripheral face and can eliminating, select to satisfy the polyurethanes of essential condition (2), (3) and vinyl chloride base material as sleeve pipe 50 about essential condition (1).
On the other hand,, can enumerate (A) and obtain sufficient sliding for the essential condition of lubricating coating material requirements, (B) and the phasic property between the base material good.
As the lubricating coating material, can be enumerated as polyvinylpyrrolidone, lignocaine colloid (xylocaine jelly), olive oil.Polyvinylpyrrolidone is for the good especially effect of essential condition (A) performance, and for essential condition (B), and the phasic property between the polyurethanes is good, but for vinyl chloride, not good phasic property as polyurethanes.In addition, the lignocaine colloid can not satisfy essential condition (A), and is for essential condition (B), all good with the phasic property of polyurethanes and vinyl chloride.Olive oil can not satisfy essential condition (A) too, and is for essential condition (B), all good with the phasic property of polyurethanes and vinyl chloride.
Based on The above results, the sleeve pipe 50 of embodiment can use the material that the coating polyvinylpyrrolidone forms on polyurethanes.
In addition, coating hydrophilic coating material 80 on the outer peripheral face of endoscope insertion part 12, the coefficient of friction of this outer peripheral face guarantees that relatively the coefficient of friction of the 1st sacculus 30 of big frictional resistance is set to 5～30%.If frictional resistance is below 5%, sleeve pipe 50 is with respect to patient's the hands of operation sleeve pipe 50 and too smooth, so become the reason of maloperation.In addition, if frictional resistance is more than 30%, endoscope insertion part 12 is with respect to the plug variation of body cavity wall.Thereby, by above-mentioned frictional resistance is defined as 5～30%, the plug of endoscope insertion part 12 relative body cavitys is carried out well.And then, by being defined as 12～1 6%, the plug of endoscope insertion part 12 relative body cavitys is carried out more well.
Wherein, the endoscope apparatus of embodiment is that two sacculus formula endoscope apparatus are described, monomer for sleeve pipe 50 with sacculus, for the monomer of the endoscope insertion part 12 with sacculus, the frictional resistance with this outer peripheral face is defined as 5～30% of sacculus for the foregoing reasons and preferably in addition.
Claims (4)
1. endoscope apparatus, the insertion assistive device that sacculus is installed in top ends when colluding is inserted from its base end part in the insertion section that comprises endoscope, and described sacculus connects airtight in body cavity by expansion, it is characterized in that,
Coating lubricating coating material on the outer peripheral face of described insertion assistive device, the coefficient of friction of the outer peripheral face of the insertion assistive device that this is coated is set to 5～30% with respect to the coefficient of friction of described sacculus.
2. endoscope apparatus is included in the endoscope that the top ends of insertion section is installed sacculus, and described sacculus connects airtight in body cavity by expansion, it is characterized in that,
Coating lubricating coating material on the outer peripheral face of the insertion section of described endoscope, the coefficient of friction of the outer peripheral face of the insertion section that this is coated is set to 5～30% with respect to the coefficient of friction of described sacculus.
3. endoscope apparatus, the top ends that is included in the insertion section is installed the endoscope of the 1st sacculus and is covered described insertion section and guide the insertion of described insertion section that the insertion assistive device of the 2nd sacculus is installed in top ends simultaneously, the the 1st and the 2nd sacculus connects airtight in body cavity by expansion, it is characterized in that
Coating lubricating coating material on the outer peripheral face of described insertion assistive device, the coefficient of friction of described relatively the 2nd sacculus of coefficient of friction of the outer peripheral face of the insertion assistive device that this is coated is set to 5～30%.
4. endoscope apparatus as claimed in claim 3 is characterized in that,
Coating lubricating coating material on the outer peripheral face of the insertion section of described endoscope, the coefficient of friction of the outer peripheral face of the insertion section that this is coated is set to 5～30% with respect to the coefficient of friction of described the 1st sacculus.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-175647 | 2004-06-14 | ||
| JP2004175647 | 2004-06-14 | ||
| JP2004-322794 | 2004-11-05 | ||
| JP2004322794 | 2004-11-05 | ||
| JP2005-086893 | 2005-03-24 | ||
| JP2005086893A JP3821392B2 (en) | 2004-06-14 | 2005-03-24 | Endoscope device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100764815A Division CN100438817C (en) | 2004-06-14 | 2005-06-14 | Endoscope apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN101263998A CN101263998A (en) | 2008-09-17 |
| CN101263998B true CN101263998B (en) | 2010-08-25 |
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| CN2008100865260A Active CN101263998B (en) | 2004-06-14 | 2005-06-14 | Endoscope apparatus |
| CNB2005100764815A Active CN100438817C (en) | 2004-06-14 | 2005-06-14 | Endoscope apparatus |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100764815A Active CN100438817C (en) | 2004-06-14 | 2005-06-14 | Endoscope apparatus |
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| JP6185294B2 (en) * | 2013-06-11 | 2017-08-23 | オリンパス株式会社 | Endoscope |
| CN112367895A (en) * | 2018-07-17 | 2021-02-12 | 富士胶片株式会社 | Composition for insertion assisting sheath, kit of insertion assisting sheath and endoscope, endoscope device, and method for manufacturing insertion assisting sheath |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913565A (en) * | 1973-05-18 | 1975-10-21 | Olympus Optical Co | Guide tube for a treating instrument to be inserted into body cavity |
| US4636346A (en) * | 1984-03-08 | 1987-01-13 | Cordis Corporation | Preparing guiding catheter |
| US6261630B1 (en) * | 1997-06-03 | 2001-07-17 | Scimed Life Systems, Inc. | Coating gradient for lubricious coatings on balloon catheters |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5312356A (en) * | 1989-05-22 | 1994-05-17 | Target Therapeutics | Catheter with low-friction distal segment |
| JP4517321B2 (en) * | 2000-06-05 | 2010-08-04 | 有限会社エスアールジェイ | Overtube |
-
2005
- 2005-06-14 CN CN2008100865260A patent/CN101263998B/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913565A (en) * | 1973-05-18 | 1975-10-21 | Olympus Optical Co | Guide tube for a treating instrument to be inserted into body cavity |
| US4636346A (en) * | 1984-03-08 | 1987-01-13 | Cordis Corporation | Preparing guiding catheter |
| US6261630B1 (en) * | 1997-06-03 | 2001-07-17 | Scimed Life Systems, Inc. | Coating gradient for lubricious coatings on balloon catheters |
Non-Patent Citations (1)
| Title |
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| JP特开2001-340462A 2001.12.11 |
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| CN100438817C (en) | 2008-12-03 |
| CN101263998A (en) | 2008-09-17 |
| CN1714734A (en) | 2006-01-04 |
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