CN112890741A - Snake bone structure of endoscope and endoscope - Google Patents
Snake bone structure of endoscope and endoscope Download PDFInfo
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- CN112890741A CN112890741A CN202110297749.7A CN202110297749A CN112890741A CN 112890741 A CN112890741 A CN 112890741A CN 202110297749 A CN202110297749 A CN 202110297749A CN 112890741 A CN112890741 A CN 112890741A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0057—Constructional details of force transmission elements, e.g. control wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/008—Articulations
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- Endoscopes (AREA)
Abstract
The invention provides a snake bone structure of an endoscope, which comprises a cylindrical bone sleeve, N traction ropes and N pressure springs, wherein N is more than or equal to 2; the N compression springs are uniformly distributed on the inner wall of the bone sleeve along the axial direction, the first ends of the N compression springs are in contact with the front end of the bone sleeve, the second ends of the N compression springs are in contact with the rear end of the bone sleeve, and the middle section of the N compression springs is not in contact with the bone sleeve; the N traction ropes are respectively arranged in the pressure spring in a penetrating mode, the front ends of the traction ropes are connected with the front end of the bone sleeve, the rear ends of the traction ropes penetrate out of the second end of the pressure spring, and no other contact point exists between the traction ropes and the bone sleeve; the side wall of the bone sleeve is provided with a plurality of parallel grooves which penetrate through the side wall of the bone sleeve along the axial direction, and each groove extends along the radial direction of the bone sleeve. The traction rope is arranged in the pressure spring in a penetrating mode, the rigidity of the snake bone is increased by the pressure spring, the snake bone is not prone to bending and deformation, and meanwhile the front end insertion part can be easily inserted into human tissues. The bone sleeve is not provided with a traction rope fixing hole, secondary punch forming is not needed for the bone sleeve, the processing procedures of the snake bone are reduced, the snake bone is simpler to process and install, the cost of the snake bone is effectively reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to a detection instrument in the field of medical instruments, in particular to a snake bone structure of an endoscope and the endoscope.
Background
The endoscope is a commonly used detection instrument in modern medical diagnosis and treatment, can enter the stomach through a mouth or enter the body through other natural pore canals, and can also enter the body through a small incision made by an operation. The doctor can see the lesion which cannot be displayed by the X-ray by means of the endoscope, and is very useful for diagnosing the condition. The snake bone structure is a common component in endoscopes.
The snake bone of the existing endoscope has two structures, one is formed by matching a plurality of joint-shaped snake bones assembled by the same parts with steel wire ropes, and the defect is that the direction needs to be determined between the joints, a plurality of steel wire ropes are needed to connect the joint-shaped snake bones in a penetrating way, and the assembly is complicated. The other type is formed by integrally cutting the whole pipe, and the steel wire rope fixing hole position is needed inside the pipe, so that the pipe needs to be subjected to secondary punch forming by a die, the forming process is complex, and the cost is high. Meanwhile, as the snake bone part has no straightening structure, the snake bone part is softer and easy to deform after the snake bone at the front end is assembled into a finished product, which is not beneficial to the insertion operation of the endoscope.
Disclosure of Invention
According to one aspect of the invention, a snake bone structure of an endoscope is provided, which comprises a cylindrical bone sleeve, N traction ropes and N compression springs, wherein N is more than or equal to 2; the N compression springs are uniformly distributed on the inner wall of the bone sleeve along the axial direction, the first ends of the N compression springs are in contact with the front end of the bone sleeve, the second ends of the N compression springs are in contact with the rear end of the bone sleeve, and the middle section of the N compression springs is not in contact with the bone sleeve; the N traction ropes are respectively arranged in the pressure spring in a penetrating mode, the front ends of the traction ropes are connected with the front end of the bone sleeve, the rear ends of the traction ropes penetrate out of the second end of the pressure spring, and no other contact point exists between the traction ropes and the bone sleeve; the side wall of the bone sleeve is provided with a plurality of parallel grooves which penetrate through the side wall of the bone sleeve along the axial direction, and each groove extends along the radial direction of the bone sleeve.
The pull rope of the snake bone structure of the endoscope is arranged in the pressure spring in a penetrating mode, the rigidity of the snake bone is increased by utilizing the pressure spring, the straightening effect is achieved, the snake bone is not prone to bending and deformation, and meanwhile the front end insertion portion can be easily inserted into human tissues. The traction rope fixing holes are not formed in the bone sleeve, secondary punch forming is not needed for the bone sleeve, machining procedures of the snake bone are reduced, the snake bone is more convenient to machine and simpler to install, cost of the snake bone is effectively reduced, and production efficiency is improved.
In some embodiments, the front end of the pull cord of the present invention is provided with a protrusion; the front end of the bone sleeve is provided with a first fixing sleeve, the inner circumference of the first fixing sleeve is uniformly provided with N first mounting holes along the axial direction, and the middle parts of the first mounting holes are provided with annular first flanges; the inner diameter of the first flange is smaller than the outer diameter of the protruding portion, larger than the outer diameter of the traction rope and smaller than the outer diameter of the pressure spring. Therefore, the traction rope and the pressure spring can be conveniently arranged in the snake bone in a penetrating mode.
In some embodiments, the front end of the bone sleeve of the present invention is provided with more than two arc-shaped insertion pieces, and the insertion pieces are in interference fit with the inner side of the rear end of the first fixing sleeve. This has the effect of simplifying the fitting of the snake bone.
In some embodiments, the rear end of the bone sleeve is provided with a second fixing sleeve, the inner circumference of the second fixing sleeve is uniformly provided with N second axial mounting holes, and the middle part of each second mounting hole is provided with an annular second flange; the inner diameter of the second flange is larger than the outer diameter of the traction rope and smaller than the outer diameter of the pressure spring. Therefore, the traction rope and the pressure spring can be conveniently arranged in the snake bone in a penetrating mode.
In some embodiments, the back end of the bone sleeve is provided with more than two arc-shaped insertion pieces, and the insertion pieces are in interference fit with the inner side of the front end of the second fixing sleeve. This has the effect of simplifying the fitting of the snake bone.
In some embodiments, when N is 4, the grooves include a first groove and a second groove; the first groove comprises two groups which are oppositely arranged, and the arc length is close to a half circumference; the second grooves comprise two groups which are oppositely arranged, and the arc length is close to a half circumference; the first grooves and the second grooves are arranged in a staggered mode, the end portions of the first grooves are close to the middle portions of the second grooves, and the end portions of the second grooves are close to the middle portions of the first grooves.
According to another aspect of the present invention, there is also provided an endoscope comprising the snake bone structure described above.
Drawings
Fig. 1 is a schematic structural view of a snake bone structure according to an embodiment of the present invention.
Fig. 2 is an exploded view of the snake bone structure shown in fig. 1.
Fig. 3 is an enlarged view of the snake bone structure shown in fig. 2 at a.
Fig. 4 is a view illustrating the structure of a first fixing sleeve of a snake bone structure according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a bone cover of a snake bone structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 to 5 schematically show the structure of a snake bone structure according to one embodiment of the present invention.
Referring to fig. 1 to 5, the snake bone structure comprises a bone sleeve 10, four traction ropes 20 and four compression springs 30, and the direction of the snake bone can be adjusted from four directions.
The bone sleeve 10 is cylindrical, a first fixing sleeve 41 is arranged at the front end of the bone sleeve 10, four first mounting holes 411 along the axial direction are uniformly arranged on the inner circumference of the first fixing sleeve 41, and an annular first flange 412 is arranged in the middle of each first mounting hole 411. The back end of the bone sleeve 10 is provided with a second fixing sleeve 42, the inner circumference of the second fixing sleeve 42 is uniformly provided with four second mounting holes 421 along the axial direction, and the middle part of the second mounting holes 421 is provided with an annular second flange.
The four pressure springs 30 are evenly distributed on the inner wall of the bone sleeve 10 along the axial direction, the first end of each pressure spring is in contact with the front end of the bone sleeve 10, the second end of each pressure spring is in contact with the rear end of the bone sleeve 10, and the middle section of each pressure spring is not in contact with the bone sleeve 10. In the present embodiment, the first end of the pressing spring 30 is inserted into the first mounting hole 411 to contact the rear portion of the first flange 412; the second end of the pressing spring 20 is inserted into the second mounting hole 421 and contacts the front end of the second flange. In other embodiments, the two ends of the compression spring 30 can be in contact with the two ends of the bone sleeve 10 by clamping, welding or riveting. Referring to fig. 5, the bone sleeve 10 of the snake bone structure is not provided with a fixing hole for the traction rope 20, so that the bone sleeve 10 is not required to be subjected to secondary punch forming, the processing procedures of the snake bone are reduced, the snake bone is more convenient to process and simpler to install, the cost of the snake bone is effectively reduced, and the production efficiency is improved.
The four traction ropes 20 are respectively arranged in the compression spring 30 in a penetrating mode, the front ends of the traction ropes 20 are connected with the front end of the bone sleeve 10, the rear ends of the traction ropes 20 penetrate out of the second end of the compression spring 30, and no other contact points exist between the traction ropes 20 and the bone sleeve 10. In the present embodiment, the leading end of the traction rope 20 is provided with a protrusion 21. The inner diameter of the first flange 412 is smaller than the outer diameter of the protrusion 21, larger than the outer diameter of the traction rope 20, and smaller than the outer diameter of the compression spring 30. The inner diameter of the second flange is larger than the outer diameter of the traction rope 20 and smaller than the outer diameter of the compression spring 30. When the pull rope 20 is installed, the rear end of the pull rope passes through the first installation hole 411, the compression spring 30 and the second installation hole 421 in sequence, and the protrusion 21 is clamped at the front end of the first flange 412 because the inner diameter of the first flange 412 is smaller than the outer diameter of the protrusion 21 of the pull rope. In other embodiments, the front end of the pull cord 20 may be knotted such that the knotted diameter is larger than the inner diameter of the first flange 412; the front end of the traction rope 20 may be connected to the front end of the bone sleeve 10 by welding or the like. The pulling rope 20 is arranged in the pressure spring 30 in a penetrating mode, the rigidity of the snake bone is increased by utilizing the pressure spring 30, the straightening effect is achieved, the snake bone is not prone to bending and deformation, and meanwhile the front end insertion portion can be easily inserted into human tissues.
The side wall of the bone sleeve 10 is provided with a plurality of parallel grooves 11 penetrating through the side wall of the bone sleeve 10 along the axial direction, and each groove 11 extends along the radial direction of the bone sleeve 10. In this embodiment, two sets of grooves, namely a first groove 111 and a second groove 112, are formed on the side wall of the bone sleeve 10. The first grooves 111 comprise two sets of opposing grooves, the arc length being approximately half a circumference. The second grooves 112 comprise two sets of opposing grooves, the arc length being approximately one half of a circle. The first grooves 111 and the second grooves 112 are staggered, the end portions of the first grooves 111 are close to the middle portions of the second grooves 112, and the end portions of the second grooves 112 are close to the middle portions of the first grooves 111.
If in other embodiments, only two adjustment directions are needed for the snake bone (N ═ 2), only two traction ropes 20 may be provided, and only two sets of first grooves 111 may be formed on the side wall of the bone sleeve 10.
The front end of the bone sleeve 10 is provided with two arc-shaped insertion pieces 101, and the insertion pieces 101 are in interference fit with the inner side of the rear end of the first fixing sleeve 41. During installation, the bone sleeve 10 can be connected with the first fixing sleeve 41 only by inserting the arc-shaped insertion piece 101 into the inner side of the rear end of the first fixing sleeve 41.
The back end of the bone sleeve 10 is provided with two arc-shaped insertion pieces 101, and the insertion pieces 101 are in interference fit with the inner side of the front end of the second fixing sleeve 42. During installation, the bone sleeve 10 can be connected with the second fixing sleeve 42 only by inserting the arc-shaped insertion sheet 101 into the inner side of the front end of the second fixing sleeve 42.
In other embodiments, the first fixing sleeve 41 and the second fixing sleeve 42 can be connected to the bone sleeve 10 by clamping, screwing or welding.
When the snake bone structure of the present invention is assembled, the rear end of the traction rope 20 only needs to pass through the first mounting hole 411 of the first fixing sleeve 41 and then pass through the compression spring 30, so that the first end of the compression spring 30 is inserted into the first mounting hole 411 and contacts with the rear end of the first flange 412. Then, the compression spring 30 is inserted through the bone sleeve 10, and the front end of the bone sleeve 10 is inserted into the rear end of the first fixing sleeve 41. The rear end of the pulling rope 20 is inserted through the second mounting hole 421 of the second fixing sleeve 42, and the rear end of the pressing spring 20 is inserted into the second mounting hole 421 to contact with the front end of the second flange. Finally, the back end of the bone sleeve 10 is inserted into the front end of the second fixing sleeve 42.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (7)
1. A snake bone structure of an endoscope, comprising: the device comprises a cylindrical bone sleeve, N traction ropes and N compression springs, wherein N is more than or equal to 2;
the N compression springs are uniformly distributed on the inner wall of the bone sleeve along the axial direction, the first ends of the N compression springs are in contact with the front end of the bone sleeve, the second ends of the N compression springs are in contact with the rear end of the bone sleeve, and the middle section of the N compression springs is not in contact with the bone sleeve;
the N traction ropes are respectively arranged in the pressure spring in a penetrating mode, the front ends of the traction ropes are connected with the front end of the bone sleeve, the rear ends of the traction ropes penetrate out of the second end of the pressure spring, and no other contact point exists between the traction ropes and the bone sleeve;
the side wall of the bone sleeve is provided with a plurality of parallel grooves which penetrate through the side wall of the bone sleeve along the axial direction, and each groove extends along the radial direction of the bone sleeve.
2. The snake bone structure according to claim 1, wherein the leading end of the traction rope is provided with a protrusion;
the front end of the bone sleeve is provided with a first fixing sleeve, the inner circumference of the first fixing sleeve is uniformly provided with N first mounting holes along the axial direction, and the middle parts of the first mounting holes are provided with annular first flanges;
the inner diameter of the first flange is smaller than the outer diameter of the protruding portion, larger than the outer diameter of the traction rope and smaller than the outer diameter of the pressure spring.
3. The snake bone structure according to claim 2, wherein the front end of the bone sleeve is provided with more than two arc-shaped insertion pieces, and the insertion pieces are in interference fit with the inner side of the rear end of the first fixing sleeve.
4. The snake bone structure according to claim 1, wherein a second fixing sleeve is provided at the rear end of the bone sleeve, N second axial mounting holes are uniformly provided on the inner circumference of the second fixing sleeve, and a second annular flange is provided at the middle of the second mounting holes;
the inner diameter of the second flange is larger than the outer diameter of the traction rope and smaller than the outer diameter of the pressure spring.
5. The snake bone structure according to claim 4, wherein the rear end of the bone sleeve is provided with more than two arc-shaped insertion pieces, and the insertion pieces are in interference fit with the inner side of the front end of the second fixing sleeve.
6. A snake bone structure according to any one of claims 1-5, wherein when N-4, the grooves comprise a first groove and a second groove;
the first groove comprises two groups which are oppositely arranged, and the arc length is close to a half circumference;
the second grooves comprise two groups which are oppositely arranged, and the arc length is close to a half circumference;
the first grooves and the second grooves are arranged in a staggered mode, the end portions of the first grooves are close to the middle portions of the second grooves, and the end portions of the second grooves are close to the middle portions of the first grooves.
7. An endoscope comprising the snake bone structure according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110297749.7A CN112890741A (en) | 2021-03-19 | 2021-03-19 | Snake bone structure of endoscope and endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110297749.7A CN112890741A (en) | 2021-03-19 | 2021-03-19 | Snake bone structure of endoscope and endoscope |
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| Publication Number | Publication Date |
|---|---|
| CN112890741A true CN112890741A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110297749.7A Pending CN112890741A (en) | 2021-03-19 | 2021-03-19 | Snake bone structure of endoscope and endoscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115153387A (en) * | 2022-08-05 | 2022-10-11 | 杰泰医疗(深圳)有限公司 | Disposable medical endoscope with reasonable internal arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828690A (en) * | 2014-04-08 | 2016-08-03 | 奥林巴斯株式会社 | Endoscopic device |
| CN205923965U (en) * | 2016-06-22 | 2017-02-08 | 深圳市先赞科技有限公司 | Be used for endoscope traction fixation mechanism |
| CN106455925A (en) * | 2015-01-21 | 2017-02-22 | 奥林巴斯株式会社 | Endoscope insertion part and endoscope |
| CN211484467U (en) * | 2019-08-09 | 2020-09-15 | 杭州汇桐医疗器械有限公司 | Four-way examination endoscope with double shift rods |
| CN212307786U (en) * | 2017-08-08 | 2021-01-08 | 富士胶片株式会社 | Endoscope with a detachable handle |
-
2021
- 2021-03-19 CN CN202110297749.7A patent/CN112890741A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828690A (en) * | 2014-04-08 | 2016-08-03 | 奥林巴斯株式会社 | Endoscopic device |
| CN106455925A (en) * | 2015-01-21 | 2017-02-22 | 奥林巴斯株式会社 | Endoscope insertion part and endoscope |
| CN205923965U (en) * | 2016-06-22 | 2017-02-08 | 深圳市先赞科技有限公司 | Be used for endoscope traction fixation mechanism |
| CN212307786U (en) * | 2017-08-08 | 2021-01-08 | 富士胶片株式会社 | Endoscope with a detachable handle |
| CN211484467U (en) * | 2019-08-09 | 2020-09-15 | 杭州汇桐医疗器械有限公司 | Four-way examination endoscope with double shift rods |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115153387A (en) * | 2022-08-05 | 2022-10-11 | 杰泰医疗(深圳)有限公司 | Disposable medical endoscope with reasonable internal arrangement |
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