CN211749475U - Bending section and endoscope system - Google Patents
Bending section and endoscope system Download PDFInfo
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- CN211749475U CN211749475U CN202020031707.XU CN202020031707U CN211749475U CN 211749475 U CN211749475 U CN 211749475U CN 202020031707 U CN202020031707 U CN 202020031707U CN 211749475 U CN211749475 U CN 211749475U
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Abstract
The utility model provides a flexion and endoscope system belongs to endoscope technical field. The endoscope bending part solves the problem that when an existing endoscope bending part is bent, optical fibers can be subjected to large tensile force and extrusion force of other pipelines to the optical fibers, and the optical fibers are damaged. This flexion, including the snake bone unit of a plurality of coaxial settings, has the first clearance of stepping down between the snake bone unit of two adjacent, and two adjacent snake bone units are articulated through first articulated shaft and second articulated shaft, and first articulated shaft is coaxial and the axis of first articulated shaft, second articulated shaft is perpendicular with the axis of snake bone unit with the second articulated shaft, all is fixed with at least one first protection lantern ring in every snake bone unit, the coaxial setting of a plurality of first protection lantern rings. An endoscope system comprises an endoscope body, and the endoscope body comprises the bending part. The utility model discloses can effectively protect the bright optical cable to improve the reliability of endoscope.
Description
Technical Field
The utility model belongs to the technical field of the endoscope, a flexion and endoscope system is related to.
Background
The electronic endoscope is a device which is provided with a slender flexible insertion part and is provided with a camera device at the front end and can be inserted into a body cavity to acquire an image of an intra-cavity scene, and the electronic endoscope can realize real-time output display of the intra-cavity scene image by being connected with other equipment of an endoscope system. The structure of the existing endoscope system is shown in fig. 1, and comprises an endoscope body I, a cold light source host III, an image processor host II, a water gas bottle IV, an image display V and the like. The endoscope body I comprises a head end part 1, a bending part 2, an insertion part 3, an operation part 4, a light guide hose 5 and a light guide part 6, the endoscope body I is connected with a cold light source host computer III, illumination light provided by the cold light source host computer III is transmitted to the insertion part 3 through an illumination optical cable in the endoscope body I, and the head end part 1 provides illumination for imaging. When the endoscope body I is operated, the bending part 2 can realize bending with a certain angle in the up, down, left and right directions.
In the existing endoscope solution, the illumination cable is composed of optical fibers, a protective sleeve is added on the optical fibers and then passes through the bending part 2 of the endoscope, and in order to reduce the bending resistance, the protective sleeve is made of soft materials. As shown in fig. 2, when the bending portion 2 is bent upward to a maximum angle, the optical fiber inside the optical fiber is protected by the soft protective sleeve, and the optical fiber may be subjected to a large tensile force and a pressing force of other conduits to the optical fiber, which may easily cause damage to the optical fiber, and the damage of the optical cable may be gradually aggravated with the increase of the number of operations, which may affect the brightness of the illumination light, thereby affecting the image quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided a flexion that can protect illumination optical cable.
An endoscope system with high reliability is also provided.
The purpose of the utility model can be realized by the following technical proposal:
the flexion includes the snake bone unit of a plurality of coaxial settings, has the first clearance of stepping down between the snake bone unit of two adjacent, and two adjacent snake bone units are articulated through first articulated shaft and second articulated shaft, first articulated shaft and second articulated shaft coaxial and the axis of first articulated shaft, second articulated shaft be perpendicular with the axis of snake bone unit, its characterized in that, every snake bone unit in all be fixed with at least one first protective sheath ring, a plurality of first protective sheath ring coaxial setting.
The snake bone unit is cylindrical and is made of metal materials. The first protective sleeve ring is made of hard material and is fixed on the snake bone unit correspondingly arranged through welding, bonding or riveting. The illuminating optical cable is one, the illuminating optical cable sequentially penetrates through the first protecting lantern rings, when the endoscope is bent, the protecting tube formed by the first protecting lantern rings is bent along with the bending part formed by the snake bone units, and the optical fiber is thoroughly protected due to the fact that the first protecting lantern rings are made of hard materials, so that the optical fiber is not squeezed by other lines in the bending part, tensile deformation is not generated, and reliability of the endoscope is improved.
In the bending part, the snake bone unit positioned at odd number/even number comprises a first movable bone piece and a second movable bone piece, the first movable bone piece and the second movable bone piece are symmetrically arranged, a second abdicating gap is formed between the first movable bone piece and the second movable bone piece, the first movable bone piece and the second movable bone piece are hinged through a third hinge shaft and a fourth hinge shaft, the third hinge shaft and the fourth hinge shaft are coaxial, the axis of the third hinge shaft and the axis of the fourth hinge shaft are vertical to the axis of the first hinge shaft, and the axis of the third hinge shaft and the axis of the fourth hinge shaft are vertical to the axis of the snake bone unit.
In the bending part, two first protective lantern rings are arranged on a snake bone unit comprising a first movable bone piece and a second movable bone piece, wherein one first protective lantern ring is fixed on the first movable bone piece, and the other first protective lantern ring is fixed on the second movable bone piece; the other snake bone units are provided with a first protective lantern ring.
In the bending part, the snake bone units comprising the first movable bone pieces and the second movable bone pieces are further provided with two second protective lantern rings, one of the second protective lantern rings is fixed on the first movable bone pieces, the other one of the second protective lantern rings is fixed on the second movable bone pieces, the other snake bone units are also provided with one second protective lantern ring, and the second protective lantern rings are coaxially arranged.
Two lighting cables are arranged in the bending part: first illumination optical cable and second illumination optical cable, pass a plurality of first protection lantern rings with first illumination optical cable in proper order during the assembly, pass a plurality of second protection lantern rings with second illumination optical cable in proper order, protect first illumination optical cable through the protection tube that is formed by a plurality of first protection lantern rings, protect second illumination optical cable through the protection tube that is formed by a plurality of second protection lantern rings, make first illumination optical cable and second illumination optical cable together crooked along with the flexion, make inside optic fibre not receive the extrusion of other circuits in the flexion, do not produce tensile deformation, the reliability of endoscope has been improved.
In the bending part, the first hinge shaft and the second hinge shaft extend horizontally, and the third hinge shaft and the fourth hinge shaft extend vertically; the first abdicating gaps arranged between two adjacent snake bone units are two and are oppositely arranged along the central axis of the first articulated shaft, and the width of the first abdicating gap positioned above is greater than that of the first abdicating gap positioned below; the second abdicating gaps arranged between the first movable bone pieces and the second movable bone pieces are two and are symmetrically arranged along the central axis of the third hinge shaft.
The first articulated shaft is located the left part of snake bone unit, and the second articulated shaft is located the right part of snake bone unit, and the third articulated shaft is located the upper portion of snake bone unit, and the fourth articulated shaft is located the lower part of snake bone unit. In clinical and design, the endoscope requires that the upward bending angle is larger than the bending angles in other directions, so that the width of the first abdicating gap positioned above is larger than that of the first abdicating gap positioned below. When the bending part bends upwards, the width of the first abdicating gap positioned above the bending part is reduced, and the width of the first abdicating gap positioned below the bending part is increased; when the bending part bends downwards, the width of the first yielding gap positioned below is reduced, and the width of the first yielding gap positioned above is increased; when the bending part bends leftwards, the width of the second abdicating gap on the left side is reduced, and the width of the second abdicating gap on the right side is increased; when the bending portion is bent rightward, the width of the second abdicating gap on the right side is reduced, and the width of the second abdicating gap on the left side is increased.
In the bending part, the central axes of the first hinge shaft and the second hinge shaft are intersected with the central axis of the snake bone unit, and the central axes of the third hinge shaft and the fourth hinge shaft are intersected with the central axis of the snake bone unit.
In the bending part, the first protective sleeve is arranged on the left side of the snake bone unit in a surrounding mode, and an included angle between a plane formed by the central axis of the first protective sleeve and the central axis of the snake bone unit and the central axis of the third hinge shaft is 80-100 degrees; the second protective sleeve is arranged on the right side of the snake bone unit in a surrounding mode, and the included angle between the plane formed by the central axis of the second protective sleeve and the central axis of the snake bone unit and the central axis of the third hinge shaft is 80-100 degrees.
In the bent part, an included angle between a plane formed by the central axis of the first protective lantern ring and the central axis of the snake bone unit and the central axis of the third hinge shaft is 90 degrees; and the included angle between the plane formed by the central axis of the second protective lantern ring and the central axis of the snake bone unit and the central axis of the third hinge shaft is two, which is 90 degrees.
Since the upward bending angle of the endoscope is larger than the bending angles in other directions, if the illumination cable is disposed above the snake bone unit, the amount of deformation of the illumination cable following the bending of the bending portion is maximized, which may reduce the reliability of the illumination cable. Therefore, the first protective sleeve is arranged on the left side of the snake bone unit in an encircling mode, the second protective sleeve is arranged on the right side of the snake bone unit in an encircling mode, and the maximum deformation amount of the lighting optical cable can be effectively reduced.
The endoscope system comprises an endoscope body, and the endoscope body comprises the bending part.
Compared with the prior art, the utility model has the advantages of it is following:
the first lighting optical cable is protected through the first protective sleeve, and the second lighting optical cable is protected through the second protective sleeve ring, so that the internal optical fiber is not extruded by other lines in the bending part and does not generate tensile deformation, the protection effect on the lighting optical cable is good, and the reliability of the endoscope is improved; meanwhile, the first protective sleeve is arranged on the left side of the snake bone unit in an encircling mode, the second protective sleeve is arranged on the right side of the snake bone unit in an encircling mode, the maximum deformation of the illumination optical cable can be effectively reduced, and therefore the service life of the illumination optical cable is prolonged.
Drawings
Fig. 1 is a schematic configuration diagram of an endoscope system provided in the background art.
Fig. 2 is a schematic structural view of a flexure provided in the background art.
Fig. 3 is a schematic structural view of the bending portion provided by the present invention.
Fig. 4 is a schematic sectional view of the bending portion provided by the present invention.
Fig. 5 is a first longitudinal cross-sectional view of a flexure provided by the present invention.
Fig. 6 is a first longitudinal cross-sectional view of a flexure provided by the present invention.
In the figure, 7, a snake bone unit; 8. a first abdication gap; 9. a first hinge shaft; 10. a second hinge shaft; 11. a first protective collar; 12. a first movable bone piece; 13. a second movable bone piece; 14. a second abdication gap; 15. a third hinge shaft; 16. a fourth hinge shaft; 17. a second protective collar; 18. a first lighting cable; 19. a second lighting cable; alpha and an included angle I; beta and an included angle II.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example one
The bending portion shown in fig. 3 includes a plurality of snake bone units 7 coaxially arranged, the snake bone units 7 are substantially cylindrical, and when the bending portion is not bent, central axes of the plurality of snake bone units 7 extend horizontally. A first abdicating gap 8 is arranged between two adjacent snake bone units 7, the two adjacent snake bone units 7 are hinged through a first hinge shaft 9 and a second hinge shaft 10, the first hinge shaft 9 and the second hinge shaft 10 are coaxial, and the axes of the first hinge shaft 9 and the second hinge shaft 10 are vertical to the axis of the snake bone unit 7.
As shown in fig. 3 and 4, the snake bone unit 7 located at odd number includes a first movable bone piece 12 and a second movable bone piece 13, the first movable bone piece 12 and the second movable bone piece 13 are symmetrically arranged with a second abdicating gap 14 therebetween, the first movable bone piece 12 and the second movable bone piece 13 are hinged through a third hinge shaft 15 and a fourth hinge shaft 16, the third hinge shaft 15 and the fourth hinge shaft 16 are coaxial, the axes of the third hinge shaft 15 and the fourth hinge shaft 16 are perpendicular to the axis of the first hinge shaft 9, and the axes of the third hinge shaft 15 and the fourth hinge shaft 16 are perpendicular to the axis of the snake bone unit 7.
Wherein the first hinge shaft 9 and the second hinge shaft 10 horizontally extend, and the third hinge shaft 15 and the fourth hinge shaft 16 vertically extend. The first abdicating gaps 8 arranged between the two adjacent snake bone units 7 are two and are oppositely arranged along the central axis of the first hinge shaft 9, and the width of the first abdicating gap 8 positioned above is larger than that of the first abdicating gap 8 positioned below. The second abdicating gaps 14 arranged between the first movable bone fragments 12 and the second movable bone fragments 13 are two and are symmetrically arranged along the central axis of the third hinge shaft 15. The central axes of the first hinge shaft 9 and the second hinge shaft 10 are intersected with the central axis of the snake bone unit 7, and the central axes of the third hinge shaft 15 and the fourth hinge shaft 16 are intersected with the central axis of the snake bone unit 7.
As shown in fig. 5, the first hinge shaft 9 is located at the left portion of the snake bone unit 7, the second hinge shaft 10 is located at the right portion of the snake bone unit 7, the third hinge shaft 15 is located at the upper portion of the snake bone unit 7, and the fourth hinge shaft 16 is located at the lower portion of the snake bone unit 7. In clinical and design, the endoscope requires that the bending angle in the upward direction is larger than that in other directions, so the width of the first abdicating gap 8 positioned above is larger than that of the first abdicating gap 8 positioned below. When the bending portion is bent upward, the width of the first abdicating gap 8 positioned above becomes smaller, and the width of the first abdicating gap 8 positioned below becomes larger; when the bending portion bends downward, the width of the first abdicating gap 8 positioned below becomes smaller, and the width of the first abdicating gap 8 positioned above becomes larger; when the bending portion is bent leftward, the width of the second abdicating gap 14 located on the left side becomes smaller, and the width of the second abdicating gap 14 located on the right side becomes larger; when the bending portion is bent rightward, the width of the second abdicating gap 14 on the right side becomes smaller, and the width of the second abdicating gap 14 on the left side becomes larger.
As shown in fig. 4, the snake bone unit 7 including the first movable bone fragments 12 and the second movable bone fragments 13 is provided with two first protective collars 11, wherein one first protective collar 11 is fixed on the first movable bone fragment 12, and the other first protective collar 11 is fixed on the second movable bone fragment 13; the other snake bone units 7 are provided with a first protective sleeve ring 11, and a plurality of first protective sleeve rings 11 are coaxially arranged.
As shown in fig. 5, the snake bone unit 7 including the first movable bone piece 12 and the second movable bone piece 13 is further provided with two second protective collars 17, wherein one second protective collar 17 is fixed on the first movable bone piece 12, the other second protective collar 17 is fixed on the second movable bone piece 13, the other snake bone unit 7 is also provided with one second protective collar 17, and the second protective collars 17 are coaxially arranged.
The lengths of the first protective lantern ring 11 and the second protective lantern ring 17 are not more than the axial length of the first movable bone piece 12/the second movable bone piece 13, the snake bone unit 7 is made of metal materials, the first protective lantern ring 11 and the second protective lantern ring 17 are made of metal materials the same as the snake bone unit 7, such as stainless steel, and the first protective lantern ring and the second protective lantern ring are fixed on the inner side of the snake bone unit 7 correspondingly arranged through welding, bonding or riveting.
As shown in fig. 5, two lighting cables are provided in the bend: the first illumination optical cable 18 and the second illumination optical cable 19 sequentially penetrate through the plurality of first protective sleeve rings 11 during assembly, the second illumination optical cable 19 sequentially penetrates through the plurality of second protective sleeve rings 17, the first illumination optical cable 18 is protected through the protective tube formed by the plurality of first protective sleeve rings 11, the second illumination optical cable 19 is protected through the protective tube formed by the plurality of second protective sleeve rings 17, the first illumination optical cable 18 and the second illumination optical cable 19 are bent together along with the bending portion, the internal optical fiber is not squeezed by other lines in the bending portion, tensile deformation is avoided, and reliability of the endoscope is improved.
As shown in fig. 5 and 6, the first protective collar 11 is disposed on the left side of the snake bone unit 7, and an included angle α between a plane formed by the central axis of the first protective collar 11 and the central axis of the snake bone unit 7 and the central axis of the third hinge shaft 15 is 80 to 100 °, such as 80 °, 85 °, 90 °, 95 °, 100 °, and preferably 90 °. The second protective lantern ring 17 is arranged on the right side of the snake bone unit 7, and the included angle between the plane formed by the central axis of the second protective lantern ring 17 and the central axis of the snake bone unit 7 and the central axis of the third hinge shaft 15 is 80-100 degrees, such as 80 degrees, 85 degrees, 90 degrees, 95 degrees and 100 degrees, preferably 90 degrees.
Since the upward bending angle of the endoscope is larger than the bending angles in other directions, if the illumination cable is disposed above the snake bone unit 7, the amount of deformation of the illumination cable following the bending of the bending portion is maximized, which may reduce the reliability of the illumination cable. Therefore, the first protective collar 11 is arranged at the left side of the snake bone unit 7, and the second protective collar 17 is arranged at the right side of the snake bone unit 7, so that the maximum deformation of the illumination optical cable can be effectively reduced.
Example two
The structural principle in this embodiment is substantially the same as that in the first embodiment, except that the snake bone units 7 located at even numbers include first movable bone fragments 12 and second movable bone fragments 13.
EXAMPLE III
An endoscope system comprising an endoscope body, wherein the endoscope body comprises the bending section of embodiment one or embodiment two.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The utility model provides a flexion, includes snake bone unit (7) of a plurality of coaxial settings, has first clearance (8) of stepping down between two adjacent snake bone unit (7), and two adjacent snake bone unit (7) are articulated through first articulated shaft (9) and second articulated shaft (10), first articulated shaft (9) and second articulated shaft (10) coaxial and the axis of first articulated shaft (9), second articulated shaft (10) be perpendicular with the axis of snake bone unit (7), its characterized in that, every snake bone unit (7) in all be fixed with at least one first protection lantern ring (11), a plurality of first protection lantern ring (11) coaxial setting.
2. The bending according to claim 1, wherein the snake bone unit (7) in odd/even number comprises a first mobile bone plate (12) and a second mobile bone plate (13), the first mobile bone plate (12) and the second mobile bone plate (13) are symmetrically arranged with a second abdicating gap (14) therebetween, the first mobile bone plate (12) and the second mobile bone plate (13) are hinged by a third hinge shaft (15) and a fourth hinge shaft (16), the third hinge shaft (15) and the fourth hinge shaft (16) are coaxial, the axes of the third hinge shaft (15) and the fourth hinge shaft (16) are perpendicular to the axis of the first hinge shaft (9), and the axes of the third hinge shaft (15) and the fourth hinge shaft (16) are perpendicular to the axis of the snake bone unit (7).
3. The curvature according to claim 2, characterized in that the snake bone unit (7) comprising the first movable bone segments (12) and the second movable bone segments (13) is provided with two first protective collars (11), wherein one first protective collar (11) is fixed on the first movable bone segment (12) and the other first protective collar (11) is fixed on the second movable bone segment (13); the other snake bone units (7) are provided with a first protective lantern ring (11).
4. The bending section according to claim 3, wherein two second protective collars (17) are further provided on the snake bone unit (7) including the first movable bone piece (12) and the second movable bone piece (13), wherein one second protective collar (17) is fixed on the first movable bone piece (12), the other second protective collar (17) is fixed on the second movable bone piece (13), the other snake bone unit (7) is also provided with one second protective collar (17), and a plurality of second protective collars (17) are coaxially provided.
5. The bending section according to claim 2, 3 or 4, wherein the first articulation (9) and the second articulation (10) extend horizontally and the third articulation (15) and the fourth articulation (16) extend vertically; two first abdicating gaps (8) arranged between two adjacent snake bone units (7) are oppositely arranged along the central axis of the first articulated shaft (9), and the width of the first abdicating gap (8) positioned above is greater than that of the first abdicating gap (8) positioned below; the second abdicating gaps (14) arranged between the first movable bone plate (12) and the second movable bone plate (13) are two and are symmetrically arranged along the central axis of the third hinge shaft (15).
6. The bending section according to claim 5, wherein the central axes of the first and second hinge axes (9, 10) intersect the central axis of the snake bone unit (7), and the central axes of the third and fourth hinge axes (15, 16) intersect the central axis of the snake bone unit (7).
7. The bending section according to claim 4, wherein the first protective collar (11) is arranged on the left side of the snake bone unit (7), and the included angle a between the plane formed by the central axis of the first protective collar (11) and the central axis of the snake bone unit (7) and the central axis of the third hinge shaft (15) is 80-100 degrees; the second protection lantern ring (17) is arranged on the right side of the snake bone unit (7), and an included angle between a plane formed by the central axis of the second protection lantern ring (17) and the central axis of the snake bone unit (7) and the central axis of the third hinge shaft (15) is 80-100 degrees.
8. An endoscope system comprising an endoscope body, said endoscope body comprising the bending section according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020031707.XU CN211749475U (en) | 2020-01-08 | 2020-01-08 | Bending section and endoscope system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020031707.XU CN211749475U (en) | 2020-01-08 | 2020-01-08 | Bending section and endoscope system |
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| CN211749475U true CN211749475U (en) | 2020-10-27 |
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| CN202020031707.XU Active CN211749475U (en) | 2020-01-08 | 2020-01-08 | Bending section and endoscope system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890739A (en) * | 2021-02-26 | 2021-06-04 | 天津大学 | Medical endoscope insertion unit |
| CN112987280A (en) * | 2021-03-11 | 2021-06-18 | 中国人民解放军空军特色医学中心 | Bracket for endoscope light source line |
-
2020
- 2020-01-08 CN CN202020031707.XU patent/CN211749475U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890739A (en) * | 2021-02-26 | 2021-06-04 | 天津大学 | Medical endoscope insertion unit |
| CN112987280A (en) * | 2021-03-11 | 2021-06-18 | 中国人民解放军空军特色医学中心 | Bracket for endoscope light source line |
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