CN211834302U - Endoscope bending part and endoscope - Google Patents
Endoscope bending part and endoscope Download PDFInfo
- Publication number
- CN211834302U CN211834302U CN201920863390.3U CN201920863390U CN211834302U CN 211834302 U CN211834302 U CN 211834302U CN 201920863390 U CN201920863390 U CN 201920863390U CN 211834302 U CN211834302 U CN 211834302U
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- endoscope
- operation wire
- bending
- spiral
- screw
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- 238000005452 bending Methods 0.000 title claims description 44
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 241000270295 Serpentes Species 0.000 description 10
- 210000000988 bone and bone Anatomy 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model provides an endoscope flexion, including spiral piece, operating wire and operating wire protecting sleeve, wherein: one end of the operating wire protecting sleeve is fixed at one end side of the spiral piece; one end of the operating wire extends into the spiral piece through the operating wire protecting sleeve and is fixed at the other end side of the spiral piece. The utility model has the advantages of ingenious structure, convenient assembly and lower cost; the utility model is convenient to process and is suitable for large-scale production; the utility model discloses a structural connection of design spiral spare and operation line realizes the crooked effect of the small radius of flexion.
Description
Technical Field
The utility model relates to an endoscope specifically relates to an endoscope flexion and endoscope.
Background
The endoscope has an elongated insertion portion that is insertable into a body cavity, a bending portion is provided on a distal end side of the insertion portion, and a tip portion is provided on a distal end side of the bending portion. The head end part is at least internally provided with an imaging unit, an image transmission unit and an illumination unit. The bending portion is operated by an operation wire by an operation device provided in the operation portion to perform a bending operation.
Generally, the bending part is composed of a plurality of snake bone joints connected with each other. In order to realize the bending action of the bending part, the snake bone joint must have the following basic characteristics: the snake bone joint is provided with a traction hole for passing through a traction wire; adjacent snake joints are connected by an articulation which allows them to pivot relative to each other; the snake bone joint has enough lumen space to pass through wires, optical fibers, etc.
All known endoscope bends at present consist of a plurality of snake bone segments connected to each other, the connecting means of which allow them to pivot relative to each other. The connecting means are arranged on the faces of these snake condyles, respectively. These snake condyles and connection devices are extremely complex in terms of the manufacture of the snake condyles; it is also particularly complicated in terms of the joint assembly of the snake condyles. Therefore, not only are few manufacturers capable of producing endoscope bending parts at home and abroad, but also the large-scale production difficulty is high and the cost is high.
In addition, in actual use, the bending portion of the endoscope in the prior art has a large bending radius due to the structural principle, and cannot pass through a narrow space with a sharp or excessive bending.
The utility model application No. 201811592756.4 provides a bending part of an endoscope and an endoscope. Comprises a plurality of bending blocks which are connected end to end. Two adjacent crooked pieces pass through connecting portion rotatable coupling between, and connecting portion include recess and arch. The bulges can be rotatably accommodated in the grooves, the end surfaces of the bending blocks are respectively provided with abutting surfaces on two sides of the connecting part, the bulges relatively rotate to the maximum angle in the grooves, the abutting surfaces of two adjacent bending blocks are abutted, so that the two bending blocks are at the maximum bending angle, the heights of the bending blocks are the same, the bending blocks are divided into a plurality of groups of bending block groups along the extension direction of the bending part, and the maximum bending angle of the bending block group close to the front end of the bending part is the maximum. The bending portion of the endoscope and the endoscope are connected by a plurality of bending pieces to further realize bending, and the scheme has high processing cost and complex structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an endoscope flexion and endoscope to the defect among the prior art.
According to the utility model provides a pair of endoscope flexion, including spiral piece, operation line and operation line protecting pipe, wherein:
one end of the operating wire protecting sleeve is fixed at one end side of the spiral piece;
one end of the operating wire extends into the spiral piece through the operating wire protecting sleeve and is fixed at the other end side of the spiral piece.
Preferably, the screw comprises a spring.
Preferably, the number of the operation wires and the operation wire sheath tubes is one or more pairs.
Preferably, when the number of the operation wires and the operation wire sheath tubes is plural, the plural operation wires and the operation wire sheath tubes are distributed along the circumferential direction of the screw.
Preferably, one end of the operating wire and one end of the operating wire sheath tube are fixed on the same side or opposite sides of the screw element.
Preferably, the screw further comprises one or more limiting parts, the limiting parts are arranged in the screw, the operating line passes through the limiting parts, and the limiting parts limit the operating line.
Preferably, an end loop is further included, the end loop being provided at the other end side of the screw.
Preferably, the end connection ring is arranged at the other end side of the spiral part through an end connection ring separation part, the end connection ring is sleeved at one side of the end connection ring separation part, and the other end of the spiral part is sleeved at the other side of the end connection ring separation part.
Preferably, one end of the operating wire is fixed to an inner circumferential surface of the end-coupling separating member.
The utility model provides an endoscope, foretell endoscope flexion.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model has the advantages of ingenious structure, convenient assembly and lower cost;
2. the utility model is convenient to process and is suitable for large-scale production;
3. the utility model discloses a structural connection of design spiral spare and operation line realizes the crooked effect of the small radius of flexion.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the structure of a bending section of an endoscope;
FIG. 2 is a schematic cross-sectional view of a curved portion of an endoscope;
fig. 3 is an enlarged schematic view of one end portion of a bending spring tube of a bending portion of an endoscope.
The figures show that:
screw 1
Operating wire sheath tube 3
End coupling ring 4
End joint ring separator 5
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Referring to fig. 1, for clarity, the screw 1 is illustrated with the upper portion terminating distally and the lower portion terminating proximally. As shown in fig. 1 to 3, the present invention provides an endoscope including an endoscope bending portion including a screw member 1 wound from a linear member, a distal end of which is connected to a head end portion, and a proximal end of which is connected to an insertion portion or an operation portion. The distal end side of the screw element 1 is fixedly connected with the operating wire 2; the proximal end side of the screw element 1 is fixedly connected with the operating wire sheath tube 3. The distal end of the operation wire 2 is fixedly connected with the distal end side of the screw element 1, passes through the operation wire sheath tube 3, and the proximal end of the operation wire 2 is connected with an operation device arranged in the operation part. The distal end of the operation wire sheath tube 3 is fixedly connected to the proximal end side of the screw 1, and the proximal end of the operation wire sheath tube 3 is connected to an operation device provided in the operation portion.
A plurality of pairs of operating wires 2 and operating wire protecting sleeves 3 are fixed on the periphery of the spiral piece 1. The fixed connection point of each pair of the operating wires 2 and the operating wire sheath tubes 3 thereof and the spiral piece 1 can be in the same side or opposite side and other arbitrary position relations.
The fixed connection of the operation wire sheath tube 3 and the screw element 1 may be the proximal end of the screw element 1 or the non-distal end of the screw element 1. The proximal end of the screw element 1 may be connected to another screw element 1, or may be connected to a flexible tube, a rigid tube, or the like, and then connected to the operation portion. The cross-section of the linear member that winds the screw 1 may be circular, rectangular, oblong, oval, etc.
The tip of the endoscope bending portion includes an end loop 4, and the end loop 4 is provided on the other end side of the screw 1. The end connecting ring 4 is arranged on the other end side of the spiral part 1 through an end connecting ring separating part 5, the end connecting ring 4 is sleeved on one side of the end connecting ring separating part 5, and the other end of the spiral part 1 is sleeved on the other side of the end connecting ring separating part 5.
The utility model discloses still include one or more locating parts (not shown in the figure), the locating part sets up in the spiral piece, the operating line passes the locating part, the locating part carries on spacingly to the operating line, prevents that the operating line from controlling the skew when crooked.
The utility model discloses the theory of operation as follows: taking the fixed connection point of the operating wire 2 and the screw element 1 and the fixed connection point of the operating wire sheath tube 3 and the screw element 1 as an example, the same side position relationship is: when the wire 2 is pushed to the distal end side, the bending strength of the wire 2 is smaller than the entire tensile strength of the screw 1, and therefore the bending of the screw 1 can be achieved by causing the one-side stretching of the screw 1 without causing the entire stretching of the screw 1.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. An endoscope bending portion, comprising a screw, an operation wire and an operation wire sheath tube, wherein:
one end of the operating wire protecting sleeve is fixed at one end side of the spiral piece;
one end of an operating wire extends into the spiral piece through the operating wire protecting sleeve and is fixed on the other end side of the spiral piece; the screw element comprises a spring.
2. The endoscopic bending section according to claim 1, wherein the number of the operation wires and the operation wire sheath tubes is one or more pairs.
3. The endoscope bending section according to claim 2, wherein when the number of the operation wires and the operation wire sheath tubes is plural, plural operation wires and operation wire sheath tubes are distributed in a circumferential direction of the spiral.
4. The bending portion of an endoscope according to claim 1, wherein an end of the operation wire and an end of the operation wire sheath tube are fixed to the same side or opposite sides of the screw.
5. The bending section according to claim 1, further comprising one or more stoppers disposed in the screw element, through which the operation wire passes, for restricting the operation wire.
6. The endoscopic flexure of claim 1, further comprising an end coil disposed at the other end side of the helix.
7. The bending section of an endoscope according to claim 6, wherein the end connection loop is provided on the other end side of the spiral element by an end connection loop separating member, the end connection loop is provided on one side of the end connection loop separating member, and the other end of the spiral element is provided on the other side of the end connection loop separating member.
8. The bending section of an endoscope according to claim 7, wherein one end of the operation wire is fixed to an inner peripheral surface of the end-loop separating member.
9. An endoscope, comprising the endoscope bending section according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863390.3U CN211834302U (en) | 2019-06-10 | 2019-06-10 | Endoscope bending part and endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863390.3U CN211834302U (en) | 2019-06-10 | 2019-06-10 | Endoscope bending part and endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211834302U true CN211834302U (en) | 2020-11-03 |
Family
ID=73130115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920863390.3U Active CN211834302U (en) | 2019-06-10 | 2019-06-10 | Endoscope bending part and endoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211834302U (en) |
-
2019
- 2019-06-10 CN CN201920863390.3U patent/CN211834302U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240115 Address after: Room 3554, 3rd Floor, Building 3, No. 25 Yanqi South Fourth Street, Yanqi Economic Development Zone, Huairou District, Beijing, 101407 Patentee after: Zhongke Optoelectronics (Beijing) Intelligent Technology Co.,Ltd. Address before: 201100 rooms 401, 402, 403, 405, building 5, 439 Jinglian Road, Minhang District, Shanghai Patentee before: SHANGHAI EDA PHOTOELECTRONIC TECHNOLOGY Co.,Ltd. |