CN101068497A - Endoscope insertion part - Google Patents
Endoscope insertion part Download PDFInfo
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- CN101068497A CN101068497A CN 200680001267 CN200680001267A CN101068497A CN 101068497 A CN101068497 A CN 101068497A CN 200680001267 CN200680001267 CN 200680001267 CN 200680001267 A CN200680001267 A CN 200680001267A CN 101068497 A CN101068497 A CN 101068497A
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Abstract
An endoscope insertion part which can be easily manufactured. This endoscope insertion part comprises an inner tubular member (28a) formed in a roughly cylindrical shape and extending over at least a curved part (20), an outer tubular member (28b) inserted onto the inner tubular member (28a), formed in a roughly cylindrical shape, and extending over at least the curved part (20), and operation wires (36) for flexibly operating the inner tubular member (28a) and the outer tubular member (28b). At least one tubular member (28a) of the inner tubular member (28a) and the outer tubular member (28b) is integrally formed and comprises at least two tubular parts (30) and connection parts (31) having elasticity and flexibly connecting the adjacent tubular parts (30) to each other. Wire holding parts (34) holding the operation wires (36) so as to be advanced and retreated is formed between the inner tubular member (28a) and the outer tubular member (28b) by the inner tubular member (28a) and the outer tubular member (28b).
Description
Technical field
The present invention relates to a kind of endoscope insertion part with bending section of energy bending operation.
Background technology
In the past, adopted the elongated insertion section of insertion in body cavity and the endoscope in body cavity, observed etc.In the insertion section of such endoscope, be equipped with the bending section of energy bending operation.In Japanese kokai publication hei 5-3852 communique, disclose an example of such bending section.In the bending section of Japanese kokai publication hei 5-3852 communique, the joint ring of a plurality of general cylindrical shape shapes is coaxial and can link up rotationally mutually by riveted joint.And, on the inner peripheral surface of each joint ring,, and on the line receiving portion of each joint ring, be penetrated with operating line by fixing wired receiving portions such as laser weld.The leading section of operating line and the leading section of bending section are connected, the base end part of operating line be provided in the insertion section base end part on operating portion in bending actuating mechanism be connected.By bending actuating mechanism to the operating line operation of advancing and retreat, thereby the envoy encircles mutual rotation and bending section is carried out bending operation.
Summary of the invention
In the bending section in Japanese kokai publication hei 5-3852 communique, will save ring by riveted joint etc. can link up mutually rotationally, and a plurality of line receiving portions is fixed on inner peripheral surface of each joint ring.Therefore, particularly in the endoscope of minor diameter, need carry out accurate processing, assembling to small parts, the manufacturing process of bending section is very loaded down with trivial details, and it is difficult that the manufacturing of endoscope becomes.
The present invention promptly is conceived to above-mentioned problem and makes, and its purpose is to provide a kind of endoscope insertion part easy to manufacture.
The endoscope insertion part of one embodiment of the present invention is characterised in that, have inner tubular member, outer tubular member and operating line, above-mentioned inner tubular member has roughly barrel shape, and extends at whole bending section at least, above-mentioned outer tubular member from outside be enclosed within on the above-mentioned inner tubular member, have roughly barrel shape, and extend at whole bending section at least, the aforesaid operations line is used for above-mentioned inner tubular member and above-mentioned outer tubular member are carried out bending operation; At least one square tube type member in above-mentioned inner tubular member and the above-mentioned outer tubular member has linking part and at least 2 cylindrical portion, these linking parts and at least 2 cylindrical portion form as one, and above-mentioned linking part has elasticity and adjacent above-mentioned cylindrical portion is interlinked flexiblely; Between above-mentioned inner tubular member and above-mentioned outer tubular member, formed the line maintaining part that can keep the aforesaid operations line by above-mentioned inner tubular member and above-mentioned outer tubular member with advancing and retreat.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, the linking part that the opposing party's tubular element in above-mentioned inner tubular member and the above-mentioned outer tubular member has at least 2 cylindrical portion that form as one and has elasticity and adjacent above-mentioned cylindrical portion is interlinked flexiblely.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, forms above-mentioned line maintaining part by extend the slot part that is provided with and the inner peripheral surface of above-mentioned outer tubular member in the central axial direction of the above-mentioned inner tubular member in the outer peripheral face upper edge of above-mentioned inner tubular member.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, by the outer peripheral face of above-mentioned inner tubular member with extend the slot part that is provided with in the central axial direction of the above-mentioned outer tubular member in the inner peripheral surface upper edge of above-mentioned outer tubular member and form above-mentioned line maintaining part.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, extends the outside slot part that is provided with over the ground and forms above-mentioned line maintaining part by extending the inboard slot part that is provided with in the central axial direction of the above-mentioned inner tubular member in the outer peripheral face upper edge of above-mentioned inner tubular member and practising physiognomy in the central axial direction of the above-mentioned outer tubular member in the inner peripheral surface upper edge of above-mentioned outer tubular member and with above-mentioned inboard slot part.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that the above-mentioned linking part of above-mentioned the opposing party's tubular element is configured on the central axial direction of above-mentioned the opposing party's tubular element successively with helical form.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that the opposing party's tubular element in above-mentioned inner tubular member and the above-mentioned outer tubular member is formed by the serpentine pipe that forms as one.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that above-mentioned serpentine pipe extends at whole above-mentioned bending section and flexible pipe portion ground.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, square tube type member in above-mentioned inner tubular member and the above-mentioned outer tubular member extends at whole above-mentioned bending section, and the opposing party's tubular element in above-mentioned inner tubular member and the above-mentioned outer tubular member extends at whole above-mentioned bending section and flexible pipe portion.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, above-mentioned inner tubular member is to form by the length that the mother metal that will form continuously cuts into regulation, and the mother metal of above-mentioned continuous formation has roughly to be arranged a plurality of cylindrical portion of being provided with mutually coaxially and above-mentioned cylindrical portion adjacent each other linked rotationally the linking part that gets up mutually.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, above-mentioned outer tubular member is to form by the length that the mother metal that will form continuously cuts into regulation, and the mother metal of above-mentioned continuous formation has roughly arranges a plurality of cylindrical portion that are provided with and the linking part that above-mentioned cylindrical portion adjacent each other is interlinked rotationally mutually coaxially.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, above-mentioned inner tubular member is extended at whole bending section, above-mentioned outer tubular member is extended at whole above-mentioned bending section and above-mentioned flexible pipe portion, the aforesaid operations line passes above-mentioned bending section and above-mentioned flexible pipe portion, above-mentioned endoscope insertion part also have above-mentioned flexible pipe portion by outside be wrapped in sheath (sheath) on the aforesaid operations line, above-mentioned inner tubular member has on 1 base end part that is arranged on above-mentioned inner tubular member at least, be connected with above-mentioned line maintaining part, the hub (boss) that is linking the leading section of above-mentioned sheath, the aforesaid operations line is passed above-mentioned sheath from above-mentioned line maintaining part by above-mentioned hub.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, above-mentioned inner tubular member is extended at whole above-mentioned bending section and above-mentioned flexible pipe portion, and above-mentioned outer tubular member is extended at whole above-mentioned bending section.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, also has the crust of the one of extending in whole above-mentioned bending section and above-mentioned flexible pipe portion.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, above-mentioned bending section place, above-mentioned linking part along the length of the length-wise axis direction of above-mentioned tubular element greater than the length along the length-wise axis direction of above-mentioned tubular element above-mentioned flexible pipe portion place, above-mentioned linking part.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, above-mentioned bending section place, above-mentioned linking part along the circumferential width of above-mentioned tubular element less than the above-mentioned flexible pipe portion circumferential width along the above-mentioned tubular element place, above-mentioned linking part.
The endoscope insertion part of a preferred embodiment of the present invention is characterised in that, the thickness of the above-mentioned crust at above-mentioned bending section place is than the thin thickness of the above-mentioned crust at above-mentioned flexible pipe portion place.
The endoscope of another embodiment of the present invention is characterised in that to have above-mentioned endoscope insertion part.
Adopt the present invention, can make endoscope insertion part easily.
Description of drawings
Fig. 1 is the axonometric chart of the endoscope of expression the 1st embodiment of the present invention.
Fig. 2 is the axonometric chart of inner tubular member of the endoscope of expression the 1st embodiment of the present invention.
Fig. 3 is the axonometric chart of outer tubular member of the endoscope of expression the 1st embodiment of the present invention.
Fig. 4 A is the axonometric chart of the curvature section of endoscope of expression the 1st embodiment of the present invention.
Fig. 4 B is that the IVB-IVB line with Fig. 4 A cuts off the curvature section of endoscope of the 1st embodiment of the present invention and represents the cross-sectional view of this bending section.
Fig. 4 C is the longitudinal section of fixture construction of leading section of operating line of the endoscope of expression the 1st embodiment of the present invention.
Fig. 4 D be the endoscope that cuts off the 1st embodiment of the present invention of the IVD-IVD line with Fig. 4 A operating line leading section fixture construction and represent the cross-sectional view of this fixture construction.
Fig. 5 A is the cross-sectional view of the curvature section of endoscope of expression the 2nd embodiment of the present invention.
Fig. 5 B is the longitudinal section of fixture construction of leading section of operating line of the endoscope of expression the 2nd embodiment of the present invention.
Fig. 5 C is the cross-sectional view of fixture construction of leading section of operating line of the endoscope of expression the 2nd embodiment of the present invention.
Fig. 6 A is the cross-sectional view of the curvature section of endoscope of expression the 3rd embodiment of the present invention.
Fig. 6 B is the longitudinal section of fixture construction of leading section of operating line of the endoscope of expression the 3rd embodiment of the present invention.
Fig. 6 C is the cross-sectional view of fixture construction of leading section of operating line of the endoscope of expression the 3rd embodiment of the present invention.
Fig. 7 is the axonometric chart of fixture construction of leading section of operating line of the endoscope of expression the 4th embodiment of the present invention.
Fig. 8 is the axonometric chart of outer tubular member of the endoscope of expression the 5th embodiment of the present invention.
Fig. 9 is the axonometric chart of the curvature section of endoscope of expression the 6th embodiment of the present invention.
Figure 10 is the exploded perspective view of insertion section of the endoscope of expression the 7th embodiment of the present invention.
Figure 11 A is the exploded perspective view of insertion section of the endoscope of expression the 8th embodiment of the present invention.
Figure 11 B is the axonometric chart of insertion section of the endoscope of expression the 8th embodiment of the present invention.
Figure 12 is the axonometric chart that is connected of hub and coil jackets of the endoscope of expression the 9th embodiment of the present invention.
Figure 13 is the axonometric chart that is connected of hub and coil jackets of endoscope of the 1st variation of expression the 9th embodiment of the present invention.
Figure 14 is the axonometric chart that is connected of hub and coil jackets of endoscope of the 2nd variation of expression the 9th embodiment of the present invention.
Figure 15 A is the vertical view of insertion section of the endoscope of expression the 10th embodiment of the present invention.
Figure 15 B is the longitudinal section of insertion section of the endoscope of expression the 10th embodiment of the present invention.
Figure 15 C is the cross-sectional view of insertion section of the endoscope of expression the 10th embodiment of the present invention.
Figure 15 D is the longitudinal section of effect that is used to illustrate the endoscope of the 10th embodiment of the present invention.
Figure 16 A is the longitudinal section of insertion section of endoscope of the 1st variation of expression the 10th embodiment of the present invention.
Figure 16 B is the cross-sectional view of insertion section of endoscope of the 1st variation of expression the 10th embodiment of the present invention.
Figure 17 is the vertical view of insertion section of the endoscope of expression the 11st embodiment of the present invention.
Figure 18 is the vertical view of insertion section of endoscope of the 1st variation of expression the 11st embodiment of the present invention.
The specific embodiment
Below, with reference to Fig. 1～Fig. 4 D the 1st embodiment of the present invention is described.As shown in Figure 1, the endoscope 14 of present embodiment has and is inserted into endoceliac elongated insertion section 16.This insertion section 16 is by linking distal end constituting part 18 from front successively, can carrying out the bending section 20 of bending operation and long and have flexible flexible pipe portion 22 to form.On the base end part of insertion section 16, link to have and keep the operating portion 24 operated, on operating portion 24, be equipped with above-below direction bending operation knob (knob) 26a, the left and right directions bending operation knob 26b that are used for bending section 20 is carried out bending operation by the operator.
With reference to Fig. 1 and Fig. 2, the bending section 20 of present embodiment has the inner tubular member 28a of general cylindrical shape shape.This inner tubular member 28a for example forms as one by the rubber-like resin material being carried out extrusion molding, injection moulding or metal parts is carried out punch process.
In inner tubular member 28a, roughly be disposed with many cylindrical portion 30 mutually coaxially.Two adjacent cylindrical portion 30 are linking together by a pair of rubber-like linking part 31 with respect to the symmetric position of the central axis of inner tubular member 28a, and can rotate mutually by the flexural deformation of this linking part 31.Each a pair of linking part 31 is formed at 90 ° the position of staggering successively along the central axial direction of inner tubular member 28a on central axial direction.Therefore, for the cylindrical portion 30 of regulation, the cylindrical portion 30 before and after it can be rotated on roughly perpendicular direction mutually with respect to the cylindrical portion 30 of this regulation, can make inner tubular member 28a to direction bending arbitrarily by making up such rotation.
In addition, on the outer peripheral face of inner tubular member 28a, be the position up and down of benchmark upwards with the field of view at the axis of inner tubular member 28a, on the total length of inner tubular member 28a, extend respectively and be provided with inboard slot part 32a.In the present embodiment, these inboard slot part 32a with respect to be configured in respectively around the direction of the central axis of inner tubular member 28a with the roughly the same position of linking part 31 on.
With reference to Fig. 1～Fig. 3, the bending section 20 of present embodiment have the outer circumferential side that is entrenched in inner tubular member 28a and with the outer tubular member 28b of the roughly the same structure of structure of this inner tubular member 28a.But, on outer tubular member 28b, do not form slot part.At this, the axis direction size of the axis direction size of the cylindrical portion 30 of outer tubular member 28b and the cylindrical portion 30 of inner tubular member 28a about equally, the axis direction distance between the adjacent cylindrical portion 30 of axis direction between the adjacent cylindrical portion 30 of outer tubular member 28b distance and inner tubular member 28a is about equally.
Shown in Fig. 4 A and 4B, outer tubular member 28b overcoat, be entrenched on inner tubular member 28a.At this, inner tubular member 28a and outer tubular member 28b cylindrical portion 30,30 each other be superimposed para-position on axis direction; And,, make that the bending direction between the adjacent cylindrical portion 30 of bending direction between the adjacent cylindrical portion 30 of regulation of inner tubular member 28a and the outer tubular member 28b that is superimposed with them is consistent in para-position on the direction of axis.And by the inboard slot part 32a of inner tubular member 28a and the inner peripheral surface of outer tubular member 28b, the axis direction in up and down position along inner tubular member 28a forms wired maintaining part 34 in the total length of whole inner tubular member 28a.The operating line 36 used of bending operation passes this line maintaining part 34 up and down respectively up and down.
Shown in Fig. 4 C and 4D, be equipped with globular fitting portion 38 at the leading section of operating line 36.This fitting portion 38 is entrenched among the inboard embeded slot 40a of inner tubular member 28a.This inboard embeded slot 40a forms around complete cycle at the outer peripheral face of the cylindrical portion foremost 30 of inner tubular member 28a.And fitting portion 38 is crimped between the inner peripheral surface of cylindrical portion foremost 30 of the inboard embeded slot 40a that is fixed on inner tubular member 28a and outer tubular member 28b.
With reference to Fig. 1～Fig. 4 D, operating line 36 passes and runs through insertion section 16 and be imported in the operating portion 24, and the base end part of operating line 36 is connected with each bending operation knob 26a, 26b of bending actuating mechanism.By operation above-below direction bending operation 26a, left and right directions bending operation knob 26b, the operating line 36 that bending operation is up and down the used operation of advancing and retreat, and on the direction bending section 20 is being carried out bending operation up and down.
Thereby, the effect below the endoscope 14 of present embodiment can produce.
In the bending section 20 of present embodiment, a plurality of cylindrical portion 30 of inner tubular member 28a, and linking part 31 that cylindrical portion 30 is interlinked flexiblely form as one as inner tubular member 28a.And, between inner tubular member 28a and outer tubular member 28b, formed the line maintaining part 34 that makes operating line 36 can keep operating line 36 by inner tubular member 28a and outer tubular member 28b with advancing and retreat.Therefore, the manufacturing of bending section 20 is very simple, can easily make endoscope 14.
In addition, in the assembling procedure of bending section 20, be embedded into the inboard embeded slot 40a from the outer circumferential side of inner tubular member 28a fitting portion 38 operating line 36, and with operating line 36 outer being enclosed within on each inboard slot part 32a, afterwards, outer tubular member 28b is inserted among the inner tubular member 28a.Therefore, the assembling of bending section 20 becomes easy.
And line maintaining part 34 is formed by the inner peripheral surface of inboard slot part 32a and outer tubular member 28b, and this inboard slot part 32a extends setting at the axis direction of the outer peripheral face upper edge of inner tubular member 28a inner tubular member 28a.That is, on inner tubular member 28a, form inboard slot part 32a, and on outer tubular member 28b, do not form slot part.Therefore, the structure of present embodiment be suitable for preferably the wall thickness of the thickening inner tubular member 28a such as configuration, desired strength according to content, with the bending section of the wall thickness reduction of outer tubular member 28b.
Fig. 5 A～Fig. 5 C represents the 2nd embodiment of the present invention.Omit its explanation to having the Reference numeral identical with the structure mark of the 1st embodiment identical functions.
Shown in Fig. 5 A, in the present embodiment, on inner tubular member 28a, do not form slot part, and on the inner peripheral surface of outer tubular member 28b, be provided with outside slot part 32b in position up and down along extending on the whole length of axis direction of outer tubular member 28b respectively at outer tubular member 28b.And, formed line maintaining part 34 by the outer peripheral face of inner tubular member 28a and the outside slot part 32b of outer tubular member 28b.
In addition, shown in Fig. 5 B and 5C, on the inner peripheral surface of the cylindrical portion foremost 30 of outer tubular member 28b, extend and be provided with outside embeded slot 40b around whole circumference.And the fitting portion 38 of operating line 36 is entrenched on the embeded slot 40b of the outside, is crimped between the outside embeded slot 40b of the outer peripheral face of the cylindrical portion foremost 30 that is fixed on inner tubular member 28a and outer tubular member 28b.
The structure of present embodiment is suitable for the wall thickness of attenuate inner tubular member 28a preferably and the bending section of the wall thickness of thickening outer tubular member 28b.
Fig. 6 A～Fig. 6 C represents the 3rd embodiment of the present invention.Omit its explanation to having the Reference numeral identical with the structure mark of the 1st embodiment identical functions.
As shown in Figure 6A, in the present embodiment, on inner tubular member 28a, be formed with inboard slot part 32a in the same manner, and on outer tubular member 28b, also be formed with outside slot part 32b in the same manner with the 2nd embodiment with the 1st embodiment.These inboard slot part 32a and outside slot part 32b by configuration with facing one another.And, formed line maintaining part 34 by the inboard slot part 32a of inner tubular member 28a and the outside slot part 32b of outer tubular member 28b.
In addition, shown in Fig. 6 B and 6C, on inner tubular member 28a, be formed with inboard embeded slot 40a in the same manner, on outer tubular member 28b, also be formed with outside embeded slot 40b in the same manner with the 2nd embodiment with the 1st embodiment.These inboard embeded slot 40a and outside embeded slot 40b by configuration with facing one another.And the fitting portion 38 of operating line 36 is crimped between the outside embeded slot 40b of the inboard embeded slot 40a that is fixed on inner tubular member 28a and outer tubular member 28b.
The structure of present embodiment is suitable for preferably, and the wall thickness of inner tubular member 28a and the wall thickness of outer tubular member 28b are the bending section of equal extent.
Fig. 7 represents the 4th embodiment of the present invention.Omit its explanation to having the Reference numeral identical with the structure mark of the 1st embodiment identical functions.
In the present embodiment, on the outer peripheral face of the cylindrical portion foremost 30 of inner tubular member 28a,, extend integratedly with inboard slot part 32a and to be provided with inboard embeded slot 40a in order to enlarge the width of inboard slot part 32a.The leading section of operating line 36 turns back and is embedded among the inboard embeded slot 40a, and is fixed on the inner tubular member 28a.In the present embodiment, need not use the parts the fitting portion in the 1st～the 3rd embodiment for the leading section of fixing operation line 36, thereby reduce components number.
Fig. 8 represents the 5th embodiment of the present invention.Omit its explanation to having the Reference numeral identical with the structure mark of the 1st embodiment identical functions.
With reference to Fig. 1, Fig. 2 and Fig. 8, in the outer tubular member 28b of present embodiment, adjacent cylindrical portion 30 is interlinked by 1 linking part 31, therefore side's cylindrical portion 30 can be with respect to the opposing party's cylindrical portion 30 to direction bending arbitrarily.And these linking parts 31 are disposed with helical form successively by the central axial direction along outer tubular member 28b.
In the 1st embodiment, the bending direction between the adjacent cylindrical portion 30 of the regulation of inner tubular member 28a, and and the adjacent cylindrical portion 30 of their outer tubular member 28b of being superimposed between bending direction mutually not simultaneously, inner tubular member 28a and outer tubular member 28b interfere mutually and hinder their bendings, so bending section 20 is difficult to bending.Therefore, for this bending direction unanimity, need make inner tubular member 28a and outer tubular member 28b exactly in para-position on the direction of axis.
In contrast, in the outer tubular member 28b of the 5th embodiment, because side's cylindrical portion 30 can be with respect to the opposing party's cylindrical portion 30 to direction bending arbitrarily, if therefore the mode that is superimposed with mutual cylindrical portion 30 makes inner tubular member 28a and outer tubular member 28b para-position on axis direction, the situation that then can reduce inner tubular member 28a and outer tubular member 28b to interfere mutually and hinder their bendings, thus do not need to make inner tubular member 28a and outer tubular member 28b in para-position on the direction of axis.Therefore, the manufacturing process of bending section 20 becomes simpler, and the manufacturing of endoscope 14 becomes and is more prone to.
In addition, in the present embodiment, among inner tubular member 28a and outer tubular member 28b, be to dispose with helical form, but also the linking part 31 of inner tubular member 28a can be disposed with helical form along the linking part 31 of axis direction with outer tubular member 28b.
Fig. 9 represents the 6th embodiment of the present invention.Identical with the structure of the 1st embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
With reference to Fig. 1 and Fig. 9, the insertion section 16 of present embodiment has the serpentine pipe 41 that extends on the whole length of insertion section 16.This serpentine pipe 41 forms as one by helically coiling ribbon-shaped members.And serpentine pipe 41 is used to form flexible pipe portion 22, and forms outer tubular member 28b at bending section 20 places.
In the present embodiment, no matter how mutually inner tubular member 28a and outer tubular member 28b in axis direction and configuration on the direction of axis, mutually interfere and hinder the situation of their bendings all less, and do not need to make inner tubular member 28a and outer tubular member 28b para-position.In addition, can adopt to make bending section 20 and flexible pipe portion 22 form the mode of 1 serpentine pipe 41, thereby components number is oversimplified and is reduced in structure simplification, the assembling that can realize the insertion section 16 of endoscope 41.
In the present embodiment, be to have formed outer tubular member 28b by serpentine pipe 41, and as outer tubular member 28b, also can adopt to form as one and can be to any tubular element any direction bending, that form line maintaining part 34 between can the inboard slot part 32a at itself and inner tubular member 28a.In addition, outer dress such as such tubular element and netted pipe, rubber tube member is formed as one.And, in the present embodiment, be to have formed outer tubular member 28b by serpentine pipe 41, also can make by serpentine pipe 41 and form inner tubular member 28a and adopt the structure of the outer tubular member 28b of the 2nd embodiment as outer tubular member 28b.
Figure 10 represents the 7th embodiment of the present invention.Omit its explanation to having the Reference numeral identical with the structure mark of the 1st embodiment identical functions.
With reference to Fig. 1, Fig. 4 A and Figure 10, in the insertion section 16 of present embodiment, inner tubular member 28a extends on whole bending section 20, and outer tubular member 28b extends in whole bending section 20 and flexible pipe portion 22.Insert by flexible pipe portion 22 from the extended operating line 36 of base end part of the inboard slot part 32a of inner tubular member 28a and to run through operating portion 24.Flexible pipe portion 22 is useful on the coil jackets that prevents the wearing and tearing between operating line 36 and the content in outsourcing on the operating line 36.In addition, on outer tubular member 28b, in whole bending section 20 and flexible pipe portion 22 scopes, covered crust (not shown) by softish resin formation integratedly.
Thereby, the effect below the endoscope 14 of present embodiment produces.
In the insertion section 16 of present embodiment, inner tubular member 28a extends at whole bending section 20, and outer tubular member 28b extends in whole bending section 20 and flexible pipe portion 22.That is, do not form the structure of the skeleton construction that links insertion section 16 in the bending section 20 and the coupling part of flexible pipe portion 22, simplify the structure, can realize the minimizing of components number and the raising of assembling operation, and can reduce the cost of insertion section 16 and make.
In addition, the crust of the insertion section 16 of present embodiment extends in whole bending section 20 and flexible pipe portion 22 integratedly.That is, do not need respectively in bending section 20 and flexible pipe portion 22, to cover crust separately, in addition, need be in order not guarantee seal in the bending section 20 and the connecting portion office of flexible pipe portion 22 by the operation of the such trouble of wrap wire or the bonding crust that fixes.Therefore, can further reduce the cost of insertion section 16.
And, the skeleton construction of the bending section 20 of insertion section 16 only can form by following operation: the inner tubular member 28a that will assemble operating line 36 is inserted among the outer tubular member 28b, and fitting portion 38 crimping of operating line 36 is fixed between the inner peripheral surface of the inboard embeded slot 40a of inner tubular member 28a and outer tubular member 28b.Therefore, realize further reduction components number, further improved assembling operation, can reduce the cost of insertion section 16 fully.
Figure 11 A and Figure 11 B represent the 8th embodiment of the present invention.Omit its explanation to having the Reference numeral identical with the structure mark of the 7th embodiment identical functions.
With reference to Figure 11 A and Figure 11 B, in the inner tubular member 28a and outer tubular member 28b of present embodiment, comprise that all cylindrical portion 30 of cylindrical portion 30 foremost form roughly the same shape respectively.That is, different with the 7th embodiment, on the cylindrical portion foremost 30 of the inner tubular member 28a of present embodiment, do not form inboard embeded slot 40a.And, inner tubular member 28a and outer tubular member 28b are for example by the rubber-like resin material being carried out extrusion molding or hardware being carried out punch process and forms sufficiently long mother metal continuously, this mother metal is cut into desired length, thereby form as one.
Cylindrical portion foremost 30 at the position configuration inner tubular member 28a of the 2nd cylindrical portion 30 of the past of outer tubular member 28b terminal number.And embedding at the leading section of outer tubular member 28b has the hub roughly cylindraceous portion 43 that is formed by resin or stainless steel and other metal materials.The mutual butt of cardinal extremity face of the front end face of inner tubular member 28a and hub portion 43.
At this, be formed with engaging recessed part 44 on the inner peripheral surface of each cylindrical portion 30 of outer tubular member 28b, the protuberance 45 that engages of the engaging recessed part 44 of the cylindrical portion foremost 30 of outer tubular member 28b and hub portion 43 fastens and makes outer tubular member 28b and the 43 mutual fastenings of hub portion.In addition, in the present embodiment,, therefore on all cylindrical portion 30, all be formed with engaging recessed part 44 owing to formed outer tubular member 28b by the mother metal that cuts off continuous formation.
Extend at above-mentioned upper edge, the position axis direction up and down of the inner peripheral surface of hub portion 43 and to be provided with, on these protuberances 46, run through forming wired fixing hole 47 respectively vertically to the outstanding protuberance 46 of radially inner side.The leading section of the inboard slot part 32a up and down of inner tubular member 28a respectively with the configuration over the ground of practising physiognomy of the base end part of the line fixing hole 47 up and down of hub portion 43, to be inserted into the line fixing hole 47 from the extended operating line 36 of leading section of the inboard slot part 32a of inner tubular member 28a, and these operating lines 36 are fixed in the hub portion 43 by bonding or soldering etc.
Make outer tubular member 28b and the mutual fastening of inner tubular member 28a by the fastening ring 48 between the adjacent cylindrical portion 30 that is embedded in outer tubular member 28b.Promptly, be C font roughly with the perpendicular cross section of the central axis of this fastening ring 48, at the gap portion of C font be positioned at the middle body that is divided into the symmetric position of central axis with respect to this clearance portion and formed clamping part 49, this clamping part 49 is used for the linking part 31 of the outer tubular member 28b that clamping overlaps each other and the linking part 31 of inner tubular member 28a.And, make the eclipsed linking part 31 of a side pass the gap portion of fastening ring 48, and clamp the eclipsed linking part 31 of a side and fastening mutually, and clamp by the clamping part 49 of the gap portion of fastening ring 48 and to be positioned at respect to the eclipsed linking part 31 of the opposing party of 31 one-tenth symmetric positions of central axis of the eclipsed linking part of a side and mutual fastening by the clamping part 49 of the middle body of fastening ring 48.Like this, prevented the dislocation between outer tubular member 28b and the inner tubular member 28a, can make outer tubular member 28b and inner tubular member 28a crooked integratedly.
Thereby, the effect below the endoscope 14 of present embodiment produces.
In the endoscope insertion part 16 of present embodiment, cut into desired length by the mother metal that will form continuously and formed inner tubular member 28a and outer tubular member 28b.Therefore, can with low-cost, produce inner tubular member 28a and outer tubular member 28b rapidly and in large quantities, thereby can further reduce the cost of endoscope insertion part 16.
Figure 12 represents the 9th embodiment of the present invention.Identical with the structure of the 7th embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
Respectively on the above-mentioned position up and down of the base end part of the inner tubular member 28a of present embodiment, inwards the axis direction of tubular element 28a is outstanding is provided with hub 52 roughly cylindraceous.The leading section of the inner chamber of these hubs 52 is connected with the base end part of inboard slot part 32a respectively, and the leading section of coil jackets 54 is respectively inserted in the base end part of inner chamber of these hubs 52, and is fixed in the hub 52.And operating line 36 inserts to coil jackets 54 by hub 52 from inboard slot part 32a.
Thereby, the effect below the endoscope 14 of present embodiment produces.
Make operating line 36 from the base end part of inner tubular member 28a the direct extended structure, the action of operating line 36 is in the cardinal extremity place of inner tubular member 28a instability, the probability that also exists the seamed edge of the inboard slot part 32a of inner tubular member 28a to wear and tear because of the advance and retreat of operating line 36.In the endoscope insertion part 16 of present embodiment,, therefore can prevent this situation because operating line 36 inserts to coil jackets 54 by hub 52 from inboard slot part 32a.
Figure 13 represents the 1st variation of the 9th embodiment of the present invention.Identical with the structure of the 9th embodiment identical functions mark omit its explanation to having with reference to Reference numeral.In this variation, be formed with towards the tapering 56 of front hole enlargement at the leading section of coil jackets 54, this tapering 56 is wrapped in outward on the outer peripheral face of hub 52 and is fixed.
Figure 14 represents the 2nd variation of the 9th embodiment of the present invention.Identical with the structure of the 9th embodiment identical functions mark omit its explanation to having with reference to Reference numeral.In this variation, on the inner peripheral surface of hub 52, be formed with female thread, externally threaded function is brought into play in the coiling of the leading section of coil jackets 54, thereby the leading section spiral of coil jackets 54 is installed on the hub 52.
Figure 15 A～Figure 15 C represents the 10th embodiment of the present invention.Identical with the structure of the 7th embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
The outer tubular member 28b of present embodiment extends at whole bending section 20, and on the other hand, inner tubular member 28a extends in whole bending section 20 and flexible pipe portion 22.And on the peripheral part of inner tubular member 28a, extension is provided with inboard slot part 32a on the total length of inner tubular member 28a, and in bending section 20 and flexible pipe portion 22, operating line 36 advance and retreat freely run through and remain among the inboard slot part 32a.And, spread all over bending section 20 and flexible pipe portion 22 and be coated with crust (not shown) integratedly by softish resin formation.
Thereby, the effect below the endoscope 14 of present embodiment produces.
Usually, the external diameter of the endoscope insertion part 16 that inserts in patient's body lumen is more little, and it is good more that it inserts performance, in addition, the internal diameter at bending section 20 places is big more, and content is easy to activity more when making bending section 20 bendings, can prevent the wearing and tearing that content is mutual, make the endurance quality of content good more.
At this, consider to make the constant situation of performance of inserting, the external diameter that is about to the skeleton construction at flexible pipe portion 22 places is set at the situation of constant φ A.In addition, bigger even the axis direction length of bending section 20 is compared the external diameter of enough weak points, bending section 20 with the axis direction length of flexible pipe portion 22 than the external diameter of flexible pipe portion, the insertion of in body cavity, inserting of whole sight glass insertion section 16 in also can influencing hardly.Shown in Figure 15 D, as the 7th～the 9th embodiment, when outer tubular member 28b extended in whole bending section 20 and flexible pipe portion 22, the internal diameter φ B of the skeleton construction at bending section 20 places was the value (φ B=φ A-2R1-2R2) of the thickness R2 of the thickness R1 that deducted outer tubular member 28b by the external diameter φ A of outer tubular member 28b and inner tubular member 28a.On the other hand, as present embodiment, when inner tubular member 28a extended in whole bending section 20 and flexible pipe portion 22, the internal diameter φ C of the skeleton construction at bending section 20 places was for being deducted the value (φ C=φ A-2R2) of the thickness R2 of inner tubular member 28a by the external diameter φ A of inner tubular member 28a.That is, inner tubular member 28a compares with the situation that outer tubular member 28b extends in whole bending section 20 and flexible pipe portion 22 in the situation of extending in whole bending section 20 and the flexible pipe portion 22, can increase the internal diameter of the skeleton construction at bending section 20 places.
Like this, in the present embodiment, can realize the good insertion of insertion section 16 and the good durability of content simultaneously.
Figure 16 A and 16B represent the variation of the 10th embodiment of the present invention.Identical with the structure of the 10th embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
In this variation, on inner tubular member 28a, do not form inboard slot part 32a, above-mentioned position up and down on the interior perimembranous of outer tubular member 28b is provided with outside slot part 32b along the axis direction extension of outer tubular member 28b respectively, and has formed line maintaining part 34 by the outer peripheral face of these outside slot part 32b and inner tubular member 28a.And, on the base end part of outer tubular member 28b, operating line 36 extends from the base end part of outside slot part 32b, and by by the inside introducing of tubular element 28a to the inside, passing inner tubular member 28a and arrive operating portion 24 between the adjacent cylindrical portion 30 of inner tubular member 28a.
Figure 17 represents the 11st embodiment of the present invention.Identical with the structure of the 10th embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
In the present embodiment, for the linking part 31 that links adjacent cylindrical portion 30, its vertically length (interval between the adjacent cylindrical portion 30) and change in bending section 20 and flexible pipe portion 22 along circumferential width.That is, the length L 1 of the linking part 31 at bending section 20 places is greater than the length L 2 of the linking part 31 at flexible pipe portion 22 places, and the width T1 of the linking part 31 at bending section 20 places is less than the width T2 of the linking part 31 at flexible pipe portion 22 places.Therefore, the bendability of the linking part 31 at bending section 20 places is greater than the bendability of the linking part 31 at flexible pipe portion 22 places, and the flexibility of the skeleton construction at bending section 20 places is greater than the flexibility of the skeleton construction of flexible pipe portion 22.
Thereby, the effect below the endoscope 14 of present embodiment produces.
Be not more than in the flexibility of the skeleton construction at bending section 20 places under the situation of flexibility of skeleton construction at flexible pipe portion 22 places, have such probability when operating line 36 being advanced and retreat operation: bending section 20 and flexible pipe portion 22 are all crooked, but though or the not crooked bending section 20 of flexible pipe portion 22 be difficult to bending, thereby reduced bending property.In the present embodiment, the flexibility of the skeleton construction at bending section 20 places has prevented the reduction of bending property greater than the flexibility of the skeleton construction at flexible pipe portion 22 places.
Figure 18 represents the 1st variation of the 11st embodiment of the present invention.Identical with the structure of the 11st embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
In the present embodiment, interval A between the adjacent cylindrical portion 30 is constant at bending section 20 and flexible pipe portion 22 places, at flexible pipe portion 22 places, make the taper of two base end parts for increasing of linking part 31, thereby shortened the effective length that helps crooked linking part 31 towards cylindrical portion 30 width.That is, as shown in figure 18, if the effective length of the linking part 31 of bending section 20 is made as L1, the effective length of the linking part 31 of flexible pipe portion 22 is made as L2, L1＞L2 then.
Below, the 12nd embodiment of the present invention is described.Identical with the structure of the 11st embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
In the present embodiment,, reduce the length of each linking part 31 successively to base end side, and the width of linking part 31 is increased from front at bending section 20 places.That is, at bending section 20 places, the flexibility of skeleton construction reduces to base end side from leading section.
Thereby, the effect below the endoscope 14 of present embodiment produces.
At bending section 20 places, when being constant on whole length, the curvature when crooked is constant on whole length also in flexibility.At this moment, the distortion of insertion section 16 is very big in the connecting portion office of bending section 20 and flexible pipe portion 20, might stress concentrate and damage insertion section 16.In the present embodiment, at bending section 20 places, owing to the flexibility of skeleton construction reduces to base end side from leading section, so bending section 20 curvature when crooked also reduces to base end side from leading section.Therefore, the distortion of insertion section 16 is in the connecting portion office of bending section 20 and flexible pipe portion 20 slyness, avoided stress concentration and can prevent to damage insertion section 16.
Below, the 13rd embodiment of the present invention is described.Identical with the structure of the 10th embodiment identical functions mark omit its explanation to having with reference to Reference numeral.
In the present embodiment, the thickness that covers the crust in the skeleton construction is changed in bending section 20 and flexible pipe portion 22.That is, the thickness of the crust on the bending section 20 is than the thin thickness of the crust in the flexible pipe portion 22.Therefore, the flexibility of bending section 20 is greater than the flexibility of flexible pipe portion 22, similarly prevented the reduction of bending property with the 11st embodiment.
Claims (18)
1. an endoscope insertion part is characterized in that,
Have inner tubular member, outer tubular member and operating line, above-mentioned inner tubular member has roughly barrel shape, and extends on whole bending section at least, above-mentioned outer tubular member is enclosed within on the above-mentioned inner tubular member outward, have roughly barrel shape, extend on whole bending section, and the aforesaid operations line is used for above-mentioned inner tubular member and above-mentioned outer tubular member are carried out bending operation;
At least one square tube type member in above-mentioned inner tubular member and the above-mentioned outer tubular member has linking part and at least 2 cylindrical portion, these linking parts and at least 2 cylindrical portion form as one, and above-mentioned linking part has elasticity, also adjacent above-mentioned cylindrical portion interlinked flexiblely;
Between above-mentioned inner tubular member and above-mentioned outer tubular member, be formed with the line maintaining part that can keep the aforesaid operations line by above-mentioned inner tubular member and above-mentioned outer tubular member with advancing and retreat.
2. endoscope insertion part according to claim 1 is characterized in that,
The opposing party's tubular element of above-mentioned inner tubular member and above-mentioned outer tubular member has linking part and at least 2 cylindrical portion, these linking parts and at least 2 cylindrical portion form as one, and above-mentioned linking part has elasticity, also adjacent above-mentioned cylindrical portion interlinked flexiblely.
3. endoscope insertion part according to claim 1 is characterized in that,
Above-mentioned line maintaining part forms by extend the slot part that is provided with and the inner peripheral surface of above-mentioned outer tubular member in the central axial direction of the above-mentioned inner tubular member in the outer peripheral face upper edge of above-mentioned inner tubular member.
4. endoscope insertion part according to claim 1 is characterized in that,
Above-mentioned line maintaining part is by the outer peripheral face of above-mentioned inner tubular member and extend the slot part that is provided with in the central axial direction of the above-mentioned outer tubular member in the inner peripheral surface upper edge of above-mentioned outer tubular member and form.
5. endoscope insertion part according to claim 1 is characterized in that,
Above-mentioned line maintaining part is by extending the inboard slot part that is provided with in the central axial direction of the above-mentioned inner tubular member in the outer peripheral face upper edge of above-mentioned inner tubular member and forming at the central axial direction of the above-mentioned outer tubular member in the inner peripheral surface upper edge of above-mentioned outer tubular member and the above-mentioned inboard slot part outside slot part that extends setting over the ground of practising physiognomy.
6. endoscope insertion part according to claim 2 is characterized in that,
The above-mentioned linking part of above-mentioned the opposing party's tubular element is disposed with helical form successively by the central axial direction along above-mentioned the opposing party's tubular element.
7. endoscope insertion part according to claim 1 is characterized in that,
The opposing party's tubular element in above-mentioned inner tubular member and the above-mentioned outer tubular member is formed by the serpentine pipe that forms as one.
8. endoscope insertion part according to claim 7 is characterized in that,
Above-mentioned serpentine pipe extends in whole above-mentioned bending section and flexible pipe portion.
9. endoscope insertion part according to claim 2 is characterized in that,
Square tube type member in above-mentioned inner tubular member and the above-mentioned outer tubular member extends on whole above-mentioned bending section;
The opposing party's tubular element in above-mentioned inner tubular member and the above-mentioned outer tubular member extends in whole above-mentioned bending section and flexible pipe portion.
10. endoscope insertion part according to claim 9 is characterized in that,
Above-mentioned inner tubular member is to form by the length that the mother metal that will form continuously cuts into regulation, and above-mentioned mother metal has a plurality of cylindrical portion that is provided with and linking parts that above-mentioned cylindrical portion adjacent each other is interlinked rotationally roughly arranged coaxially mutually.
11. endoscope insertion part according to claim 9 is characterized in that,
Above-mentioned outer tubular member is to form by the length that the mother metal that will form continuously cuts into regulation, and above-mentioned mother metal has a plurality of cylindrical portion that is provided with and linking parts that above-mentioned cylindrical portion adjacent each other is interlinked rotationally roughly arranged coaxially mutually.
12. endoscope insertion part according to claim 9 is characterized in that,
Above-mentioned inner tubular member is extended on whole above-mentioned bending section;
Above-mentioned outer tubular member is extended in whole above-mentioned bending section and above-mentioned flexible pipe portion;
The aforesaid operations line is through above-mentioned bending section and above-mentioned flexible pipe portion;
Above-mentioned endoscope insertion part also have above-mentioned flexible pipe portion by outside be wrapped in sheath on the aforesaid operations line;
Above-mentioned inner tubular member have at least 1 base end part that is located at above-mentioned inner tubular member, with the hub of above-mentioned line maintaining part leading section that be connected, that linking above-mentioned sheath, the aforesaid operations line is run through to above-mentioned sheath by above-mentioned hub from above-mentioned line maintaining part.
13. endoscope insertion part according to claim 9 is characterized in that,
Above-mentioned inner tubular member is extended in whole above-mentioned bending section and above-mentioned flexible pipe portion;
Above-mentioned outer tubular member is extended on whole above-mentioned bending section.
14. according to each described endoscope insertion part in the claim 9～13, it is characterized in that,
The crust that also has the one of in whole above-mentioned bending section and above-mentioned flexible pipe portion, extending.
15. according to each described endoscope insertion part in the claim 9～13, it is characterized in that,
Above-mentioned bending section place, above-mentioned linking part along the length of the length-wise axis direction of above-mentioned tubular element greater than the length along the length-wise axis direction of above-mentioned tubular element above-mentioned flexible pipe portion place, above-mentioned linking part.
16. according to each described endoscope insertion part in the claim 9～13, it is characterized in that,
Above-mentioned bending section place, above-mentioned linking part along the circumferential width of above-mentioned tubular element less than the above-mentioned flexible pipe portion circumferential width along the above-mentioned tubular element place, above-mentioned linking part.
17. endoscope insertion part according to claim 14 is characterized in that,
The thickness of the above-mentioned crust at above-mentioned bending section place is than the thin thickness of the above-mentioned crust at above-mentioned flexible pipe portion place.
18. an endoscope is characterized in that,
Has each described endoscope insertion part in the claim 1～17.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005276206A JP4740702B2 (en) | 2005-09-22 | 2005-09-22 | Endoscope bending portion and endoscope |
| JP276206/2005 | 2005-09-22 | ||
| JP065573/2006 | 2006-03-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101068497A true CN101068497A (en) | 2007-11-07 |
| CN100571607C CN100571607C (en) | 2009-12-23 |
Family
ID=37970397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006800012676A Expired - Fee Related CN100571607C (en) | 2005-09-22 | 2006-08-30 | Endoscope insertion part |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4740702B2 (en) |
| CN (1) | CN100571607C (en) |
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| CN101919737A (en) * | 2010-08-03 | 2010-12-22 | 安瑞医疗器械(杭州)有限公司 | Medical appliance |
| CN101919725A (en) * | 2010-08-03 | 2010-12-22 | 安瑞医疗器械(杭州)有限公司 | Medical equipment of micro-invasive interventional therapy for pancreaticobiliary duct |
| CN102073135A (en) * | 2010-11-25 | 2011-05-25 | 苏州工业园区广福汽保机电设备有限公司 | Sealing structure of electronic endoscope detection device |
| CN102100516A (en) * | 2010-11-25 | 2011-06-22 | 苏州工业园区广福汽保机电设备有限公司 | Detection device of electronic endoscope |
| CN102469911A (en) * | 2010-01-29 | 2012-05-23 | 奥林巴斯医疗株式会社 | Insertion instrument endoscope |
| CN103381088A (en) * | 2013-08-02 | 2013-11-06 | 广州医学院第一附属医院 | Fiber endoscope |
| CN103417178A (en) * | 2013-08-20 | 2013-12-04 | 姜泊 | Disposable medical endoscope |
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| CN103492013A (en) * | 2011-04-25 | 2014-01-01 | 奥林巴斯株式会社 | Guide sheath |
| CN101917896B (en) * | 2007-12-20 | 2014-02-26 | 应用科学研究Tno荷兰组织 | A bendable structure and a method for bending a structure |
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| CA2684705A1 (en) * | 2007-05-31 | 2008-12-11 | Boston Scientific Limited | Active controlled bending in medical devices |
| KR101224305B1 (en) * | 2012-02-14 | 2013-01-21 | 동국대학교 산학협력단 | Disposable endoscope for easy multi-tilt |
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| JPH02206420A (en) * | 1989-02-06 | 1990-08-16 | Fuji Photo Optical Co Ltd | Angle apparatus for endoscope |
| JP3316019B2 (en) * | 1993-01-29 | 2002-08-19 | 株式会社町田製作所 | Bending section for bending operation device |
| JP3344812B2 (en) * | 1994-03-14 | 2002-11-18 | オリンパス光学工業株式会社 | Endoscope |
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| JPH1094514A (en) * | 1996-09-24 | 1998-04-14 | Olympus Optical Co Ltd | Bending tube for endoscope |
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| CN103492013A (en) * | 2011-04-25 | 2014-01-01 | 奥林巴斯株式会社 | Guide sheath |
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| CN103431829A (en) * | 2013-08-20 | 2013-12-11 | 姜泊 | Bending controlling mechanism of medical endoscope |
| CN103431829B (en) * | 2013-08-20 | 2016-06-08 | 姜泊 | The bending controlling organization of a kind of medical endoscope |
| CN103417178A (en) * | 2013-08-20 | 2013-12-04 | 姜泊 | Disposable medical endoscope |
| CN105266752A (en) * | 2015-09-08 | 2016-01-27 | 上海熠达光电科技有限公司 | Bending portion of endoscope and disposable endoscope |
| CN106539552A (en) * | 2015-09-22 | 2017-03-29 | 申亚琪 | Controlled deflection structure |
| CN106539552B (en) * | 2015-09-22 | 2018-05-01 | 邝胜 | Controlled deflection structure |
| CN109661191A (en) * | 2016-09-06 | 2019-04-19 | 奥林巴斯株式会社 | Endoscope |
| CN109661191B (en) * | 2016-09-06 | 2021-08-10 | 奥林巴斯株式会社 | Endoscope with a detachable handle |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP4740702B2 (en) | 2011-08-03 |
| JP2007082815A (en) | 2007-04-05 |
| CN100571607C (en) | 2009-12-23 |
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