CN116725462A - Flexible endoscope bending portion snake bone structure - Google Patents
Flexible endoscope bending portion snake bone structure Download PDFInfo
- Publication number
- CN116725462A CN116725462A CN202310855191.9A CN202310855191A CN116725462A CN 116725462 A CN116725462 A CN 116725462A CN 202310855191 A CN202310855191 A CN 202310855191A CN 116725462 A CN116725462 A CN 116725462A
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- China
- Prior art keywords
- snake bone
- condyle
- joint
- bone
- bone structure
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 77
- 241000270295 Serpentes Species 0.000 title claims abstract description 54
- 238000005452 bending Methods 0.000 title claims abstract description 38
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 238000003698 laser cutting Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000009954 braiding Methods 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
-
- 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
-
- 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
- A61B1/00142—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 with means for preventing contamination, e.g. by using a sanitary sheath
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a snake bone structure of a bending part of a flexible endoscope, which comprises a plurality of snake bone components, wherein the snake bone components comprise a front end bone joint, a plurality of connecting bone joints and a rear end bone joint, the front end bone joint, the plurality of connecting bone joints and the rear end bone joint are sequentially connected, the front end bone joint, the plurality of connecting bone joints and the rear end bone joint are formed by adopting stainless steel tube laser cutting with the wall thickness of 0.15mm, different bending angles (360-alpha) and bending radiuses R of the snake bone structure are realized by adjusting the cutting angles theta and the quantity of the connecting bone joints, and a flexible sheath is coated outside the snake bone components.
Description
Technical Field
The invention relates to the field of endoscopes, in particular to a snake bone structure at a bending part of a soft endoscope.
Background
The flexible endoscope mainly enters the cavity through the natural cavity, and has the biggest characteristic that the flexible endoscope can be bent in multiple directions in operation so as to be suitable for the characteristics of complex organs of human body structures. Mainly comprises a head end part, an inserting part, an operating part, an ocular part or an objective lens, an attraction valve (applicable to an endoscope with only a working channel), and the like. The bending part of the endoscope is formed by a bendable coiled pipe to realize the bending function, the outer part is coated with the outer skins of fluororubber, fluororesin, block polyamide resin (Pebax), polyurethane and the like, and the operation part angle control mechanism drives the internal traction steel wire of the endoscope to drive the coiled pipe of the bending part to bend, so that the endoscope can be easily inserted into a body and the target part can be observed.
Normally, each condyle of the snake bone is fixed by riveting, but the riveting structure occupies the internal space of the snake bone, and the local external dimension is increased. And the riveting processing technology is complex, the time consumption is long, and the cost is high.
To solve this problem, we need to design a flexible endoscope snake bone structure which has a simple process and does not occupy the internal space of the snake bone.
Disclosure of Invention
The invention aims to: the invention aims to overcome the defects of the prior art and provide a snake bone structure at the bending part of a soft endoscope.
The technical scheme is as follows: the invention discloses a flexible endoscope bending part snake bone structure, which comprises a plurality of snake bone components, wherein each snake bone component comprises a front end bone joint, a plurality of connecting bone joints and a rear end bone joint, the front end bone joint, the connecting bone joints and the rear end bone joint are sequentially connected, the front end bone joint, the connecting bone joints and the rear end bone joint are all formed by adopting stainless steel tube laser cutting with the wall thickness of 0.15mm, and different bending angles (360-alpha) and bending radiuses R of the snake bone structure are realized by adjusting the cutting angle theta and the number of the connecting bone joints, a flexible sheath is coated outside the snake bone component, and a traction mechanism is arranged in the snake bone component.
Preferably, the flexible sheath comprises a wire braided tube and a TPU sheath from inside to outside.
Preferably, the wire braided tube is constructed from a plurality of strands of stainless steel wire having a diameter of 50 microns and is attached to the snake bone assembly by welding.
Preferably, the traction mechanism comprises a traction wire, a front joint is arranged at the front end joint and is sleeved on the front end joint and is fixed by gluing, pressing grooves are formed in the connecting joint and the rear end joint in a staggered mode, and the front end of the traction wire is connected in a clamping groove of the front joint and is sleeved on the front end joint and sequentially penetrates through the pressing grooves in the subsequent connecting joint and the rear end joint.
Preferably, the traction wire comprises a stainless steel traction wire.
Compared with the prior art, the invention has the following beneficial effects: the snake bone cut by laser can realize bidirectional bending, can realize four-direction bending according to the requirement, has simple processing technology, short working time and low cost, simultaneously increases the available space in the interior, and can realize different bending angles (360-alpha) and bending radiuses R of the snake bone structure by adjusting the cutting angle theta and the quantity of the connecting bone segments in order to prevent the snake bone from being easily damaged and stabbed after being bent for many times, and simultaneously, a traction mechanism is arranged, so that more accurate operation control can be realized.
Drawings
FIG. 1 is a schematic view of a bending portion snake bone structure of a flexible endoscope according to the first embodiment of the invention;
FIG. 2 is a schematic view of a snake bone component of a flexible endoscope bending portion snake bone structure according to the first embodiment of the invention;
FIG. 3 is a second schematic view of a snake bone component in a snake bone structure of a bending portion of a flexible endoscope according to the invention;
FIG. 4 is a schematic view showing a bending state of a snake bone component in a snake bone structure of a bending part of a flexible endoscope according to the invention;
fig. 5 is a schematic partial cross-sectional view of a snake bone component of a flexible endoscope bending portion snake bone structure according to the invention.
In the figure: 1. anterior condyles; 2. connecting the condyles; 3. a posterior condyle; 4. a wire braided tube; 5. a TPU jacket; 6. traction wire; 7. a front connecting ring; 8. and (5) pressing a groove.
Description of the embodiments
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; either directly, or indirectly, through intermediaries, may be in communication with each other, or may be in interaction with each other, unless explicitly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
The utility model provides a flexible endoscope bending portion snake bone structure, including a plurality of snake bone subassemblies, the snake bone subassembly includes front end condyle 1, a plurality of connection condyle 2 and rear end condyle 3, front end condyle 1, a plurality of connection condyle 2 and rear end condyle 3 connect gradually, front end condyle 1, a plurality of connection condyle 2 and rear end condyle 3 all adopt the nonrust steel pipe laser cutting that wall thickness is 0.15mm to form, the condyle is through adjusting cutting angle θ and connection condyle 2 quantity, realize different bending angle (360-alpha) and bending radius R of snake bone structure, snake bone subassembly overcoat has flexible sheath, be equipped with traction mechanism in the snake bone subassembly. The technical scheme has the advantages that the snake bone cut by the laser can realize bidirectional bending, can also realize four-direction bending according to requirements, has simple processing technology and short working time and low cost, simultaneously increases the available space in the interior, and can easily damage and stab human tissues after the snake bone is bent for a plurality of times, the bone segments can realize different bending angles (360-alpha) and bending radiuses R of the snake bone structure by adjusting the cutting angle theta and the number of the connected bone segments 2, the flexible sheath is arranged, and meanwhile, the traction mechanism is arranged, so that more accurate operation control can be realized.
In specific implementation, the flexible sheath comprises a metal wire braided tube 4 and a TPU sheath 5 from inside to outside, the metal wire braided tube 4 is formed by braiding a plurality of stainless steel wires with the diameter of 50 microns and is connected to the snake bone component through welding, the metal wire braided tube 4 has the strength and texture of metal braided fabrics and certain plasticity, flexibility and stretchability, the TPU sheath 5 has good elasticity, high tension, ageing resistance and other physical properties, the traction mechanism comprises a traction wire 6, a front joint ring 7 is arranged at the front end joint 1, the front joint ring 7 is sleeved on the front end joint 1 and is fixed in an adhesive manner, the front joint ring is fixed in an adhesive manner without being welded, when the traction wire 6 pulls the front end structure, the used tension is overlarge, the later use effect is influenced, the connecting joint 2 and the rear end joint 3 are provided with pressing grooves 8, the pressing grooves 8 are distributed in a staggered manner, compared with the double-side simultaneous grooving, the staggered grooving can more effectively ensure the bending space in the snake bone, the front end ring of the traction wire 6 is clamped in the front joint ring 7 and penetrates through the front joint ring 7 and passes through the front joint ring 6 and the rear joint ring 6 and passes through the front joint ring 6 and the rear joint ring 3 and the front joint ring 6 is connected with the front joint ring 6.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact between the first feature and the second feature, or an indirect contact between the first feature and the second feature through an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature. In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example.
Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced equivalently; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. A flexible endoscope bending portion snake bone structure which is characterized in that: including a plurality of snake bone subassemblies, the snake bone subassembly includes front end condyle, a plurality of connection condyle and rear end condyle, front end condyle, a plurality of connection condyle and rear end condyle connect gradually, front end condyle, a plurality of connection condyle and rear end condyle all adopt the nonrust steel pipe laser cutting that wall thickness is 0.15mm to form, the condyle is through adjusting cutting angle θ and connection condyle quantity, realizes different bending angle (360-alpha) and bending radius R of snake bone structure, the cladding of snake bone subassembly has flexible sheath outward, be equipped with traction mechanism in the snake bone subassembly.
2. A flexible endoscope bending portion snake bone structure according to claim 1 and wherein: the flexible sheath comprises a metal wire braided tube and a TPU sheath from inside to outside.
3. A flexible endoscope bending portion snake bone structure according to claim 2 and wherein: the metal wire braided tube is formed by braiding a plurality of stainless steel wires with the diameter of 50 microns, and is connected to the snake bone component through welding.
4. A flexible endoscope bending portion snake bone structure according to claim 1 and wherein: the traction mechanism comprises a traction wire, a front joint is sleeved on the front joint and is fixed by gluing, pressing grooves are formed in the connecting joint and the rear joint, the pressing grooves are distributed in a staggered mode, and the front end of the traction wire is connected in a clamping groove of the front joint and sleeved on the front joint and sequentially penetrates through the pressing grooves in the subsequent connecting joint and the rear joint.
5. A flexible endoscope bending portion snake bone structure according to claim 4 and wherein: the traction wire comprises a stainless steel traction wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310855191.9A CN116725462A (en) | 2023-07-13 | 2023-07-13 | Flexible endoscope bending portion snake bone structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310855191.9A CN116725462A (en) | 2023-07-13 | 2023-07-13 | Flexible endoscope bending portion snake bone structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116725462A true CN116725462A (en) | 2023-09-12 |
Family
ID=87908130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310855191.9A Pending CN116725462A (en) | 2023-07-13 | 2023-07-13 | Flexible endoscope bending portion snake bone structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116725462A (en) |
-
2023
- 2023-07-13 CN CN202310855191.9A patent/CN116725462A/en active Pending
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