CN210605190U - Reliably-connected confocal endoscope probe - Google Patents
Reliably-connected confocal endoscope probe Download PDFInfo
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- CN210605190U CN210605190U CN201921754661.8U CN201921754661U CN210605190U CN 210605190 U CN210605190 U CN 210605190U CN 201921754661 U CN201921754661 U CN 201921754661U CN 210605190 U CN210605190 U CN 210605190U
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- ferrule
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- 239000000523 sample Substances 0.000 title claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 29
- 238000003780 insertion Methods 0.000 claims abstract description 21
- 230000037431 insertion Effects 0.000 claims abstract description 21
- 239000003292 glue Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 13
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 239000000645 desinfectant Substances 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004659 sterilization and disinfection Methods 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model provides a reliably connected confocal endoscope probe, relating to the technical field of endoscopes. The optical fiber bundle optical fiber fixing device comprises an optical fiber bundle and a sleeve sleeved on the periphery of the optical fiber bundle, one end of the optical fiber bundle is exposed out of the sleeve and is sleeved with a ferrule, one side, away from the sleeve, of the ferrule is sleeved with a lens barrel, a stepped hole is formed in the ferrule, one end of the sleeve and the exposed end of the optical fiber bundle are all inserted in the stepped hole, an objective lens is installed in the lens barrel, and glue is filled in the insertion gap between the ferrule and the lens barrel. The optical fiber bundle and the sleeve are inserted in the plug core, and the connection strength is enhanced through glue in the stepped hole, so that the connection between the plug core and the sleeve is firmer. The other end of the inserting core is inserted in the lens cone and is connected with the lens cone in a reinforced mode through the glue, finally, the objective lens is connected with the optical fiber bundle through the inserting core, when the objective lens is pulled in the using process, the objective lens is not easy to separate from the sleeve, most of the glue in the stepped hole is located in the hole, the influence of the disinfectant is small in the disinfection process, and the bonding force is not prone to decline.
Description
Technical Field
The utility model relates to the technical field of endoscopes, in particular to connect reliable confocal endoscope probe.
Background
In the working process of the confocal endoscope system, a small objective lens at the front end of a probe needs to enter human tissues through a common endoscope clamping channel for imaging, collected image signals are transmitted back to a confocal host computer through an optical fiber bundle for processing, and microscopic observation of the tissues is finally completed. In the process, the front end of the probe can rub against the inner wall of the clamp channel, the entrance and exit of the clamp channel can be scratched, the front end part of the probe is further pulled, and the pulling force can cause the imaging quality to be deteriorated and even cause the objective lens to fall off. Therefore, the firm connection among the parts at the front end of the probe is important.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connect reliable confocal endoscope probe to solve among the prior art when observing the use because each part of probe connection insecure and the problem that the objective that leads to drops.
A reliably-connected confocal endoscope probe comprises an optical fiber bundle and a sleeve sleeved on the periphery of the optical fiber bundle, one end of the optical fiber bundle is exposed outside the sleeve and is sleeved with a ferrule, one side, far away from the sleeve, of the ferrule is sleeved with a lens barrel, a stepped hole is formed in the ferrule in a penetrating mode along the axis direction of the ferrule, one end, close to the ferrule, of the sleeve and the exposed end of the optical fiber bundle are inserted into the stepped hole, an objective lens coupled with the end face of the optical fiber bundle is installed in the lens barrel, and glue is filled in the insertion gap between the ferrule and the lens barrel and in the stepped hole.
According to the technical scheme, the lens barrel and the sleeve are connected through the inserting core, the optical fiber bundle and the sleeve are inserted into the inserting core through the stepped hole, and the connection strength is enhanced through glue filled in the stepped hole, so that the connecting between the inserting core and the sleeve is firmer. The other end of the insertion core is inserted in the lens cone and is connected with the lens cone in an enhanced mode through glue, finally, the objective lens is connected with the optical fiber bundle through the insertion core, when the lens cone is used for drawing and the like, the objective lens is not easy to separate from the sleeve, most of the glue in the stepped hole is located in the hole, and a small part of the glue is located outside the hole.
Further, the stepped hole comprises a large-diameter hole and a small-diameter hole, the diameter of the large-diameter hole is larger than the outer diameter of the sleeve, and the glue forms an adhesive layer between the inner wall of the large-diameter hole and the outer wall of the sleeve;
the exposed end of the optical fiber bundle penetrates through the small-diameter hole, and the end face of the optical fiber bundle is flush with the end face of the inserting core close to the lens cone.
Furthermore, one end of the ferrule, which is close to the sleeve, is provided with a chamfer, and the bonding layer positioned outside the large-diameter hole is used for connecting the ferrule and the sleeve.
Furthermore, a core hole is formed in one end, close to the insertion core, of the lens barrel, the insertion core comprises a wide portion and a narrow portion which are integrally formed, and the narrow portion faces the lens barrel and is in plug-in fit with the core hole.
Further, the length of the narrow part of the ferrule is longer than the opening length of the ferrule hole, so that the glue forms a connecting layer between the lens barrel and the wide part of the ferrule.
Furthermore, an external thread is arranged on the periphery of the narrow part of the ferrule, an internal thread is arranged in the core hole, and the narrow part of the ferrule is in threaded connection with the core hole.
Further, the outer diameter of the insertion core is smaller than that of the lens barrel, and one end, close to the insertion core, of the lens barrel is provided with a round narrow end equal to the outer diameter of the insertion core.
Furthermore, a heat shrink tube is arranged on the periphery of the ferrule, one end of the heat shrink tube is wrapped on the round narrow end of the lens cone, and the other end of the heat shrink tube is wrapped on the periphery of the sleeve.
Furthermore, a transition inclination angle is arranged at the joint of the inserting core and the sleeve on the heat shrink tube.
Further, the insertion core is a stainless steel insertion core, and the lens barrel is a stainless steel lens barrel.
Drawings
FIG. 1 is a cross-sectional view of a first embodiment;
FIG. 2 is a schematic view of a confocal endoscope probe during use;
FIG. 3 is a cross-sectional view of the second embodiment;
FIG. 4 is a sectional view of a third embodiment;
FIG. 5 is a sectional view of a fourth embodiment.
11, a lens barrel; 110. an objective lens; 111. a core hole; 112. an internal thread; 12. inserting a core; 120. a wide portion; 121. a narrow portion; 122. a small-diameter hole; 123. chamfering; 124. a large-diameter hole; 125. an external thread; 13. a fiber optic bundle; 14. a sleeve; 15. A connecting layer; 16. an adhesive layer; 17. heat shrink tubing; 171. a transitional dip angle; 2. clamping a channel; 211. and (4) clamping the crossing.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments to explain the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example one
Referring to fig. 1 and 2, the confocal endoscope probe with reliable connection disclosed in this embodiment includes an optical fiber bundle 13 and a sleeve 14 disposed around the optical fiber bundle 13, where the sleeve 14 protects the optical fiber bundle 13 inside, so that the optical fiber bundle 13 is not easily broken, scratched or corroded. One end of the optical fiber bundle 13 is exposed outside the sleeve 14 and is sleeved with the ferrule 12, one side of the ferrule 12 far away from the sleeve 14 is sleeved with the lens barrel 11, and the objective lens 110 is installed in the lens barrel 11. The lens barrel 11 and the ferrule 12 are made of stainless steel material to protect the objective lens 110 and the optical fiber bundle 13 inside.
A stepped hole penetrates through the ferrule 12 along the axial direction of the ferrule, the stepped hole comprises a large-diameter hole 124 and a small-diameter hole 122, and one end of the sleeve 14 close to the optical fiber bundle 13 is inserted in the large-diameter hole 124; the bare end of the optical fiber bundle 13 is inserted into the small-diameter hole 122, and the end surface of the bare end is flush with the end surface of the ferrule 12 near the end of the lens barrel 11 so as to couple with the objective lens 110 in the lens barrel 11.
The insertion gap between the insertion core 12 and the lens barrel 11 and the stepped hole are filled with glue. The opening diameter of the large-diameter hole 124 is larger than the outer diameter of the sleeve 14, so that glue is filled between the inner wall of the large-diameter hole 124 and the outer wall of the sleeve 14 to form the bonding layer 16, most of the bonding layer 16 is located in the large-diameter hole 124, and the small part of the bonding layer is located outside the large-diameter hole 124. The sleeve pipe 14 is inserted in the large-diameter hole 124, and due to the fact that the cavity of the large-diameter hole 124 is long and thin, a distance exists between the inner wall of the large-diameter hole 124 and the outer wall of the sleeve pipe 14, the contact length of the bonding layer 16 formed by glue is long, bonding strength is high, and due to the fact that the bonding layer 16 is mostly located inside the large-diameter hole 124, the possibility of corrosion of the external environment and disinfectant is reduced, and the situation that bonding force is reduced is not prone to occurring. The optical fiber bundle 13 in the small-diameter hole 122 is fixed in the ferrule 12 by glue. On the premise that the biocompatibility meets the requirement, materials with more excellent surface adhesion performance, such as PA, PU and the like, are used for manufacturing the sleeve 14, so that the adhesion between the ferrule 12 and the sleeve 14 can be further enhanced.
The end of the ferrule 12 close to the sleeve 14 is provided with a chamfer 123, and the adhesive layer 16 outside the large-diameter hole 124 is in a slope shape to connect the ferrule 12 and the sleeve 14, so that the connection strength between the ferrule 12 and the sleeve 14 is enhanced. In the use process of the confocal endoscope probe, the objective lens 110 needs to enter human tissues for observation through one forceps channel 2, in the observation process and after the observation is finished, the sleeve 14 needs to be pulled frequently to change the observation field of view or drive the objective lens 110 to leave so as to finish the observation, at this time, the insertion core 12 is easy to scratch and rub with the forceps channel 2 port, and the chamfer 123 and the slope-shaped bonding layer 16 arranged at the end part of the insertion core 12 enable the end part of the insertion core 12 to be smoother so as to reduce the resistance in pulling.
The lens barrel 11 is provided with a core hole 111 at one end close to the ferrule 12, the ferrule 12 comprises a wide part 120 and a narrow part 121 which are integrally formed, the wide part 120 faces the sleeve 14, the narrow part 121 faces the lens barrel 11 to be in plug fit with the core hole 111, and the narrow part 121 of the ferrule 12 is longer than the opening length of the core hole 111, so that glue forms a thicker connecting layer 15 between the lens barrel 11 and the wide part 120 of the ferrule 12. Because the connecting seam between the lens barrel 11 and the ferrule 12 is long and a thick connecting layer 15 is formed between the end surfaces of the two, the connecting strength between the lens barrel 11 and the ferrule 12 is increased, and the connecting strength is enough to bear the friction force generated when the lens barrel 11 slides in the clamping way 2.
Example two
Referring to fig. 3, the difference from the first embodiment is that an external thread 125 is disposed around the narrow portion 121 of the ferrule 12, an internal thread 112 is disposed in the core hole 111, and the ferrule 12 is inserted into the core hole 111 and is screwed with the lens barrel 11, so as to further enhance the stability of connection between the lens barrel 11 and the ferrule 12.
EXAMPLE III
Referring to fig. 4, the difference from the first embodiment is that the outer diameter of the ferrule 12 is smaller than the outer diameter of the lens barrel 11, one end of the lens barrel 11 close to the ferrule 12 is provided with a round narrow end, the outer diameter of the round narrow end of the lens barrel 11 is equal to the outer diameter of the ferrule 12, and the round narrow end makes the whole lens barrel 11 in a step shape. The wide portion 12 of the ferrule 12 is sleeved with a heat shrink tube 17, one end of the heat shrink tube 17 wraps the round narrow end of the lens barrel 11, and the other end wraps the periphery of the sleeve 14. One end of the ferrule 12 close to the sleeve 14 is a right angle, the adhesive layer 16 located outside the large-diameter hole 124 is in a slope shape to connect the ferrule 12 and the sleeve 14, and the heat shrink tube 17 is provided with a transition inclination angle 171 at the connection position of the ferrule 12 and the sleeve 14. The transition inclination angle 171 makes the heat shrinkable tube 17 more closely fit to the adhesive layer 16 outside the large diameter hole 124, so that the end portion of the heat shrinkable tube 17 near the sleeve 14 can better fit to the peripheral side of the sleeve 14. The narrow end makes the heat shrinkable tube 17 more smoothly wrap around the lens barrel 11 and the ferrule 12, and the heat shrinkable tube can smoothly enter and exit the clamp path 2.
Example four
Referring to fig. 5, the difference from the third embodiment is that an external thread 125 is arranged on the periphery of the narrow portion 121 of the ferrule 12, an internal thread 112 is arranged in the core hole 111, and the ferrule 12 is inserted into the core hole 111 and is in threaded connection with the lens barrel 11, so that the stability of connection between the lens barrel 11 and the ferrule 12 is further enhanced.
The above description is only a few preferred embodiments of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a connect reliable confocal endoscope probe, includes optic fibre bundle (13) and cover and establishes sleeve pipe (14) of optic fibre bundle (13) week side, the one end of optic fibre bundle (13) expose in sleeve pipe (14) are outer and the cover is equipped with lock pin (12), one side cover that lock pin (12) kept away from sleeve pipe (14) is equipped with lens cone (11), its characterized in that, run through along its axis direction in lock pin (12) and seted up the shoulder hole, sleeve pipe (14) are close to the one end of lock pin (12) and the exposed end of optic fibre bundle (13) all pegs graft in the shoulder hole, install in lens cone (11) with objective (110) of the end coupling of optic fibre bundle (13), lock pin (12) with the grafting clearance department of lens cone (11) and all fill glue in the shoulder hole.
2. A reliably connected confocal endoscope probe according to claim 1, characterized in that the stepped bore comprises a large diameter bore (124) and a small diameter bore (122), the diameter of the large diameter bore (124) being larger than the outer diameter of the sleeve (14), the glue forming a bonding layer (16) between the inner wall of the large diameter bore (124) and the outer wall of the sleeve (14);
the bare end of the optical fiber bundle (13) penetrates through the small-diameter hole (122) and the end face of the optical fiber bundle is flush with the end face of the insertion core (12) close to the lens barrel (11).
3. A reliably connected confocal endoscope probe according to claim 2, characterized in that the end of the ferrule (12) close to the sleeve (14) is provided with a chamfer (123), and the adhesive layer (16) outside the large-diameter hole (124) connects the ferrule (12) and the sleeve (14).
4. The reliably connected confocal endoscope probe according to claim 1, wherein the end of the lens barrel (11) close to the ferrule (12) is opened with a core hole (111), the ferrule (12) comprises a wide portion (120) and a narrow portion (121) which are integrally formed, and the narrow portion (121) faces the lens barrel (11) and is in plug fit with the core hole (111).
5. A reliably connected confocal endoscope probe according to claim 4, characterized in that the length of the narrow part (121) of the ferrule (12) is longer than the opening length of the core hole (111) so that the glue forms a connection layer (15) between the barrel (11) and the wide part (120) of the ferrule (12).
6. A reliably connected confocal endoscope probe according to claim 5, characterized in that the narrow part (121) of the ferrule (12) is circumferentially provided with an external thread (125), the core hole (111) is internally provided with an internal thread (112), and the narrow part (121) of the ferrule (12) is screwed into the core hole (111).
7. A reliably connected confocal endoscope probe according to claim 1, characterized in that the outer diameter of the insertion core (12) is smaller than the outer diameter of the lens barrel (11), and the end of the lens barrel (11) close to the insertion core (12) is arranged as a round narrow end equal to the outer diameter of the insertion core (12).
8. The confocal endoscope probe with reliable connection according to claim 7, wherein a heat shrinkable tube (17) is arranged around the insertion core (12), one end of the heat shrinkable tube (17) is wrapped around the narrow end of the lens cone (11), and the other end is wrapped around the sleeve (14).
9. A reliably connected confocal endoscope probe according to claim 8, characterized in that the heat shrink tube (17) is provided with a transition inclination (171) at the junction of the ferrule (12) and the sleeve (14).
10. The confocal endoscope probe with reliable connection according to claim 1, wherein the ferrule (12) is a stainless steel ferrule and the lens barrel (11) is a stainless steel barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921754661.8U CN210605190U (en) | 2019-10-18 | 2019-10-18 | Reliably-connected confocal endoscope probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921754661.8U CN210605190U (en) | 2019-10-18 | 2019-10-18 | Reliably-connected confocal endoscope probe |
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| Publication Number | Publication Date |
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| CN210605190U true CN210605190U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921754661.8U Active CN210605190U (en) | 2019-10-18 | 2019-10-18 | Reliably-connected confocal endoscope probe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812837A (en) * | 2020-06-24 | 2020-10-23 | 海南大学 | Confocal endoscope probe with replaceable lens component |
| CN111920367A (en) * | 2020-06-29 | 2020-11-13 | 海南大学 | Close-connection confocal endoscope probe |
| CN111920367B (en) * | 2020-06-29 | 2024-06-07 | 海南大学 | Tightly-connected confocal endoscope probe |
-
2019
- 2019-10-18 CN CN201921754661.8U patent/CN210605190U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812837A (en) * | 2020-06-24 | 2020-10-23 | 海南大学 | Confocal endoscope probe with replaceable lens component |
| CN111920367A (en) * | 2020-06-29 | 2020-11-13 | 海南大学 | Close-connection confocal endoscope probe |
| CN111920367B (en) * | 2020-06-29 | 2024-06-07 | 海南大学 | Tightly-connected confocal endoscope probe |
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Address after: Room 804 and Room 805, Building 1, No. 188 Fuchunjiang Road, High tech Zone, Ezhou City, Hubei Province Patentee after: Jingwei Shida Medical Technology (Suzhou) Co.,Ltd. Country or region after: China Address before: 436000, the third floor, Phoenix Avenue, special area No. 1, Wutong Lake New District, Liangzi Lake, Ezhou, Hubei Patentee before: JINGWEI SHIDA MEDICAL TECHNOLOGY (WUHAN) CO.,LTD. Country or region before: China |