CN108403073B - Flexible superfine diameter endoscope - Google Patents
Flexible superfine diameter endoscope Download PDFInfo
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- CN108403073B CN108403073B CN201810262312.8A CN201810262312A CN108403073B CN 108403073 B CN108403073 B CN 108403073B CN 201810262312 A CN201810262312 A CN 201810262312A CN 108403073 B CN108403073 B CN 108403073B
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- fiber
- endoscope
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- 239000010453 quartz Substances 0.000 claims description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 30
- 229910001220 stainless steel Inorganic materials 0.000 claims description 27
- 239000010935 stainless steel Substances 0.000 claims description 27
- 238000005286 illumination Methods 0.000 claims description 20
- 238000003384 imaging method Methods 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 12
- 239000013307 optical fiber Substances 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 238000004023 plastic welding Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000000645 desinfectant Substances 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 238000007654 immersion Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
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- 230000003902 lesion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000003759 clinical diagnosis Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000000244 kidney pelvis Anatomy 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- A61B1/06—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 illuminating arrangements
- A61B1/07—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 illuminating arrangements using light-conductive means, e.g. optical fibres
-
- 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
- A61B1/00064—Constructional details of the endoscope body
-
- 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
- A61B1/00131—Accessories for endoscopes
-
- 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
- A61B1/00163—Optical arrangements
- A61B1/00195—Optical arrangements with eyepieces
-
- 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
-
- 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
- A61B1/04—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 combined with photographic or television appliances
Abstract
The invention belongs to the technical field of endoscopes, and particularly relates to an ultrafine diameter endoscope, which can not only eliminate the breaking risk of the head end part and the eyepiece root and greatly prolong the service life, but also effectively solve the loosening risk of a hose, effectively prevent the infiltration of disinfectant and obviously improve the product quality; in addition, can also effectively prevent the emergence of connection rocking phenomenon.
Description
Technical Field
The invention belongs to the technical field of endoscopes, and particularly relates to an ultrafine diameter endoscope.
Background
An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. The endoscope can be used for seeing lesions which cannot be displayed by X rays, so that the endoscope has wide application prospect in the medical field. At present, the superfine endoscope technology is in a leading stage in developed countries such as Germany, the United states, japan and the like, is also in a general popularization and application stage clinically, and is started in China, and the national emphasis is set on the development plan: the technical improvement of basic materials and the declaration guide of the industrial key special project 2016 have been put into the development direction of the ultra-fine endoscope, which has become one of the research hotspots and key points.
The superfine endoscope can be divided into three types in terms of structural form, one type is a flexible superfine endoscope, the flexible superfine endoscope and a corresponding sheath are clinically combined and applied, and the sheath is a multi-cavity plastic tube and is disposable; the semi-rigid superfine endoscope is characterized in that the appearance part of the probe consists of a stainless steel tube with the diameter smaller than 1.6mm and the working length not larger than 100mm, and an imaging channel, a working channel and a perfusion channel are arranged in the probe; still another type is a hard ultra-fine endoscope. The technical defects of the flexible superfine endoscope are commonly existed in clinical application at present, (1) after a doctor inserts the flexible superfine endoscope into a sheath, when the head end of the flexible superfine endoscope is not noticed to be exposed out of the head end of the sheath, the head end piece of the flexible superfine endoscope is easy to break when the flexible superfine endoscope is bent and turned to a combined soft endoscope, some customers propose to shorten the length of a stainless steel tube at the end of the flexible superfine endoscope to reduce risks, but the length of the stainless steel tube is less than 3mm, and the risk of loosening, water inflow and even falling off due to too short bonding length exists; (2) After clinical diagnosis and treatment is finished, when a doctor or a nurse dismantles the optical bayonet and the medical optical cable, if hands loose or slide down, the tail end of the hose is easy to break; (3) After the immersion liquid of the flexible superfine endoscope is disinfected for a plurality of times, a user can find that the image on the monitor is clear for a while and even has no image when the bending and steering combined soft endoscope is clinically applied, if the immersion liquid is disinfected again and the user returns to the clinical application, the user can find that the image on the monitor is dirty and can not be used, the reason is that slight axial movement is formed by looseness between the outer protective sleeve of the flexible superfine endoscope and the quick connector, and the deep reason is that the bonding strength between the outer protective sleeve made of plastic material and the quick connector made of stainless steel material is insufficient and the sealing and limiting structure does not exist; (4) The coaxiality of the image surface of the quartz image fiber and the ocular lens is deviated, namely the image is not centered when the ocular lens observes the image surface, and the main reason is that the tolerance of the outer diameter of the quartz image fiber is +/-0.05 mm, when the tolerance of a machining part matched with the quartz image fiber reaches +/-0.02 mm, the deviation can reach 0.07mm, and when the magnification is 65 times, the deviation can reach 4.55mm; (5) When the optical bayonet is connected with the eyepiece cover of the flexible superfine endoscope when the endoscope camera system is installed, the phenomenon that the connection cannot be reliably performed, namely shaking occurs is found.
Disclosure of Invention
Aiming at the technical problems, the invention provides the flexible superfine diameter endoscope, which not only can eliminate the breaking risk of the head end part and the ocular root part, greatly prolong the service life, but also can effectively solve the loosening risk of the hose, effectively prevent the penetration of disinfectant and obviously improve the product quality; in addition, can also effectively prevent the emergence of connection rocking phenomenon.
The technical scheme of the invention is as follows:
the utility model provides a flexible superfine diameter endoscope, includes head and end piece, hose, eyepiece cover, eyepiece cover, quartz image fiber, illumination optic fibre, its characterized in that:
the head end piece comprises an objective outer tube, an imaging objective and an illumination optical fiber, wherein the imaging objective and the illumination optical fiber are arranged in the objective outer tube, the diameter of the objective outer tube is 0.01-0.02 mm smaller than that of the hose, so that the hose can enter an imaging channel of the sheath, and the head end part of the sheath is not exposed, the head end piece of the flexible superfine diameter endoscope is always arranged in the sheath, and the head end piece of the flexible superfine diameter endoscope is prevented from being broken due to misoperation of a doctor;
the tail end of the hose is sleeved with a hose buffer tube, and the hose buffer tube is tightly connected with the hose;
the eyepiece sleeve comprises a cylindrical and hollow eyepiece barrel, the head end of the eyepiece barrel is tightly connected with a quick connector, the quick connector is a luer connector with a through hole in the center, a limiting piece is tightly connected in the through hole at the tail end of the quick connector, the tail end of a hose passes through the through hole of the quick connector, a hose buffer tube sleeved at the tail end of the hose is tightly connected with the inner wall of the through hole of the quick connector and the limiting piece, the tail end of the hose can be effectively prevented from being broken, the limiting piece can effectively prevent the hose from loosening or penetrating and polluting an imaging surface due to disinfectant after repeated immersion disinfection, the phenomenon of image blurring caused by axial movement can be avoided, the tail end of the eyepiece barrel is connected with a mounting seat in a matched manner, the head end of the mounting seat is a cylinder with the through hole in the center, the inner wall of the through hole of the cylinder is connected with a stainless steel tube in a matched manner, the tail end of the mounting seat is a cylinder tube with the diameter larger than the cylinder, the cylinder is tightly adhered with the cylinder tube or integrally formed, and a light transmission interface is arranged at the middle lower part of the eyepiece barrel;
the illumination optical fibers are dispersed between the inner wall of the hose and the quartz image fibers.
Further, the length of the hose is 200 mm-3000 mm.
Further, the outer diameter of the hose is not more than 1mm, and the wall thickness is not more than 0.0625mm.
Further, the hose is a flexible reinforced hose formed by compounding medical plastic and stainless steel wires.
Further, the hose buffer tube is a plastic tube, a heat shrinkage tube or a woven net tube.
Further, the hose buffer tube is tightly connected with the hose by adhesive bonding, plastic welding or thermal connection.
Further, the limiting piece is a clamp pipe, a woven net pipe, a thick-wall plastic pipe, a heat shrinkage pipe or a woven rope.
Further, be equipped with at least one fastening screw on the cylindric body of mount pad, fastening screw not only can fasten nonrust steel pipe fitting, and can adjust quartz image fiber's formation of image terminal surface, makes it place in the middle of the image plane of eyepiece, ensures eyepiece and quartz image fiber and optical axis, and the deviation can be controlled in 0.01 mm.
Further, the pixels of the quartz image fiber include, but are not limited to, 6000 pixels, 10000 pixels, or 30000 pixels.
Further, the illumination fiber comprises at least 120 fiber filaments; preferably, the illumination fiber comprises at least 130 fiber filaments.
Further, each fiber wire diameter of the illumination fiber is 0.03mm.
Furthermore, the size of the eyepiece cover is phi 31.75-0.1, the matching length of the eyepiece cover and the optical bayonet is not less than 4.5mm, the conical surface length of 50 degrees+/-5 degrees is not less than 6mm, and the eyepiece cover can meet the visual requirement and is not connected with the commercial optical bayonet to shake;
further, the head end of the quartz image fiber sequentially passes through the stainless steel pipe fitting, the eyepiece barrel and the hose of the eyepiece sleeve, and is tightly adhered with the stainless steel pipe fitting, and the tail end of the quartz image fiber is exposed out of the tail end of the stainless steel pipe fitting by 1-2mm.
The invention has the following effects:
(1) The objective lens end of the flexible superfine diameter endoscope cannot expose the corresponding end part of the sheath, and even if the head end part of the combined soft endoscope is turned by misoperation, the head end part of the flexible superfine diameter endoscope and the connecting area of the hose and the eyepiece sleeve part cannot be broken, so that the service life is prolonged;
(2) At least more than 120 optical fiber wires are arranged in the hose, so that the illumination brightness of the flexible ultra-fine diameter endoscope can be improved, and the use times are prolonged;
(3) The limiting composite sealing structure of the eyepiece sleeve effectively solves the problem that a hose is possibly loosened, effectively prevents the penetration of disinfectant, and structurally improves the quality of products; meanwhile, a buffer tube is added between the hose and the quick connector, so that the hard connection between the hose and the quick connector is effectively prevented, and the flexible superfine endoscope is prevented from being broken due to misoperation;
(4) The adjustable structure of the quartz image fiber imaging surface effectively solves the problem that the mechanical machining precision cannot reach the same optical axis;
(5) The length of the coupling part of the ocular shield and the optical bayonet can be ensured to effectively prevent the occurrence of connection shaking.
Drawings
FIG. 1 is a schematic view of a flexible ultra-fine diameter endoscope of the present invention;
FIG. 2 is a cross-sectional view of the flexible, ultra-fine diameter endoscope head piece and hose of the present invention;
FIG. 3 is a structural axial view of a flexible ultra-fine diameter endoscope head piece of the present invention;
FIG. 4 is a schematic view of the structure of the eyepiece sleeve of the flexible ultra-fine diameter endoscope of the present invention;
FIG. 5 is a schematic view of the connection structure of the flexible ultra-fine diameter endoscope eyepiece sleeve, quick connector, stopper, hose and hose buffer tube of the present invention;
FIG. 6 is a schematic view of the connection structure of the flexible superfine diameter endoscope eye tube, the mounting seat, the stainless steel pipe fitting and the quartz image fiber of the invention;
FIG. 7 is a section B-B of FIG. 5;
FIG. 8 is a schematic view of the coupling structure of the eyepiece cover of the flexible ultra-fine diameter endoscope and the optical bayonet of the present invention;
FIG. 9 is a schematic view showing the connection structure of the eye tube, quick connector, stopper, hose and hose buffer tube according to embodiment 2 of the present invention;
FIG. 10 is a schematic view of a limiting clamp tube according to embodiment 2 of the present invention;
in the drawing the view of the figure,
1-a head end piece, 11-an objective outer tube, 12-an imaging objective;
2-hose, 21-hose buffer tube;
3-eyepiece sleeve, 31-eyepiece barrel, 32-quick connector, 33-limiting piece, 331-clamping part, 34-mounting seat, 341-cylinder, 342-cylinder pipe body, 343-fastening screw, 35-stainless steel pipe fitting;
4-ocular; 5-an eyepiece cover; 6-quartz imaging fiber; 7-illumination fiber.
Detailed Description
Example 1
Referring to fig. 1-8, the flexible superfine diameter endoscope comprises a head end piece 1, a hose 2, an eyepiece sleeve 3, an eyepiece 4, an eyepiece cover 5, a quartz image fiber 6 and an illumination fiber 7, wherein the head end piece 1 comprises an objective outer tube 11 and an imaging objective 12 arranged in the objective outer tube 11, the diameter of the objective outer tube 11 is 0.01-0.02 mm smaller than that of the hose 2, and the hose 2 can enter an imaging channel of a sheath tube without exposing the head end part of the sheath tube, so that the head end piece 1 of the flexible superfine diameter endoscope is always arranged in the sheath tube, and the head end piece 1 of the flexible superfine diameter endoscope is prevented from being broken due to misoperation of a doctor;
the tail end of the hose 2 is sleeved with a hose buffer tube 21, and the hose buffer tube 21 is tightly connected with the hose 2;
the eyepiece sleeve 3 comprises a cylindrical hollow eyepiece barrel 31, the head end of the eyepiece barrel 31 is tightly connected with a quick connector 32, the quick connector 32 is a luer connector with a through hole in the center, a limiting piece 33 is tightly connected in the through hole at the tail end of the quick connector 32, the tail end of the hose 2 passes through the through hole of the quick connector 32, a hose buffer tube 21 sleeved at the tail end of the hose 2 is tightly connected with the inner wall of the through hole of the quick connector 32 and the limiting piece 33, the tail end of the hose 2 can be effectively prevented from being broken, the limiting piece 33 can effectively prevent the hose 2 from loosening after multiple immersion liquid disinfection or penetrating and polluting an imaging surface, the tail end of the eyepiece barrel 31 is connected with a mounting seat 34 in a matched manner, the head end of the mounting seat 34 is provided with a cylindrical body 341 with a through hole in the center, the inner wall of the through hole of the cylindrical body is connected with a stainless steel tube 35 in a matched manner, the tail end of the cylindrical body 342 is provided with an eyepiece 4, and the eyepiece 4 is effectively prevented from loosening or penetrating and polluting an imaging surface phenomenon after immersion liquid is disinfected, and the cylindrical body 341 is integrally formed with the cylindrical body 342, and the eyepiece barrel is tightly connected with the cylindrical body through the through hole;
the illumination fibers 7 are dispersed between the inner wall of the hose 2 and the quartz image fibers 6.
The length of the hose is 200 mm-3000 mm.
The outer diameter of the hose is not more than 1mm, and the wall thickness is not more than 0.0625mm.
The hose is a flexible reinforced hose formed by compounding medical plastic and stainless steel wires.
The hose buffer tube is a plastic tube, a heat shrinkage tube or a woven net tube.
The hose buffer tube is tightly connected with the hose through adhesive bonding, plastic welding or thermal connection.
The limiting piece is a clamping tube, a woven net tube, a thick-wall plastic tube, a heat shrinkage tube or a woven rope.
The cylindrical body of the mounting seat is provided with at least one fastening screw, the fastening screw not only can fasten the stainless steel pipe, but also can adjust the imaging end face of the quartz image fiber, so that the quartz image fiber is arranged in the middle of the imaging end face of the ocular, the ocular and the quartz image fiber are ensured to be in the same optical axis, and the deviation can be controlled within 0.01 mm.
The pixels of the quartz pixel include, but are not limited to, 6000 pixels, 10000 pixels, or 30000 pixels.
The illumination fiber comprises at least 120 fiber filaments.
Each fiber wire diameter of the illumination fiber is 0.03mm.
The size of the eyepiece cover 5 is phi 31.75 -0.1 The optical bayonet is matched with the optical bayonet to have a length of not less than 4.5mm, and a conical surface of 50 degrees+/-5 degrees is not less than 6mm, so that the optical bayonet can meet the visual requirement and is not connected with the optical bayonet on the market to shake.
The head end of the quartz image fiber 6 sequentially passes through the stainless steel pipe 35 of the eyepiece sleeve 3, the eyepiece barrel 3 and the hose 2 and is tightly adhered to the stainless steel pipe 35, and the tail end of the quartz image fiber 6 is exposed out of the tail end of the stainless steel pipe 35 by 1mm.
Specifically, the outer tube 11 of the objective lens is a medical stainless steel tube, the outer diameter is 0.78+/-0.01 mm, the working length is 3+/-0.1 mm, the outer diameter of the hose 2 is 0.79+/-0.01 mm, and the difference between the nominal diameters is 0.01mm;
specifically, the objective outer tube 11 and the hose 2 are seamlessly bonded.
Specifically, the hose buffer tube 21 is a PVC plastic tube, and the buffer tube 21 is bonded to the hose 2 and the quick connector 32 by an adhesive.
Specifically, the limiting member 33 is a braided rope wound on the hose buffer tube 21, and is bonded to the quick connector 32 by an adhesive, the quick connector 32 is bonded to the eyepiece barrel 31 by an adhesive, and the selected adhesive is a bi-component epoxy resin adhesive E-51.
Specifically, the quartz image fiber 6 and the stainless steel tube 35 are bonded by using AB glue, the AB glue is sleeved into the cylinder 341 after being solidified, the stainless steel tube 35 and the cylinder 341, the cylinder 341 and the eyepiece barrel 31 are matched with a tolerance zone of H7/f6, the stainless steel tube 35 is fastened by a fastening screw 343 on the cylinder 341, the imaging end face of the quartz image fiber 6 is arranged in the middle of the image face of the eyepiece 4 by adjusting the fastening screw 343, the eyepiece 4 and the quartz image fiber 6 are ensured to be coaxial with the optical axis, and the deviation can be controlled within 0.01 mm.
Specifically, the quartz imaging fiber 6 is 1 ten thousand pixels, the imaging surface diameter is 0.33mm, and the outer diameter is 0.45+/-0.05 mm.
Specifically, the illumination optical fiber 7 is composed of 133-139 optical fiber filaments, the number is too small, the illumination brightness is low, the use times of the flexible superfine endoscope can be reduced, the process difficulty is increased due to the excessive number, and the filament breakage rate of the optical fiber filaments in the application process is easily increased.
The flexible superfine diameter endoscope can be applied to the urology department to insert the disposable multi-cavity endoscope sheath for diagnosing lesions, stones and the like of urethra and renal pelvis, and can be used for performing stone extraction or laser lithotripsy under the visual condition, wherein the visual angle is 90 degrees, the depth of field is 2-50 mm, the resolution is 1 ten thousand pixels, the effective working length is 850-950 mm, and the working total length is 2000mm, wherein the working outer diameter is 0.79+/-0.01 mm.
Example 2
In embodiment 2, the same implementation effect can be achieved by making a structural change to the connection structure of the eyepiece sleeve, the quick connector, the limiting piece, the hose and the hose buffer tube in embodiment 1.
As shown in fig. 9 and 10, the limiting member 33 is a limiting clamp tube, the limiting clamp tube is a hollow stainless steel tube provided with a clamp portion (331), the tube wall thickness of the clamp portion (331) is 0.15mm, after the hose 2 and the hose buffer tube 21 are bonded by an adhesive, the outer tube of the hose buffer tube 21 is glued with an adhesive and then inserted into the limiting clamp tube 331 together, mechanical clamping is performed at the clamp portion (332), the limiting clamp tube 331 is bonded with the quick connector 32 and the eye tube 31 by an adhesive, and the selected adhesive is a two-component epoxy resin adhesive E-51.
The foregoing description of the embodiments provides further details of the present invention with reference to the accompanying drawings, wherein like reference numerals refer to like elements throughout, and wherein like reference numerals refer to like elements throughout.
Claims (8)
1. The utility model provides a flexible superfine diameter endoscope, includes head and end piece (1), hose (2), eyepiece cover (3), eyepiece (4), eyepiece cover (5), quartz image fiber (6), illumination optic fibre (7), its characterized in that:
the head end piece (1) comprises an objective outer tube (11) and an imaging objective (12) arranged in the objective outer tube (11), wherein the diameter of the objective outer tube (11) is 0.01-0.02 mm smaller than that of the hose (2);
the tail end of the hose (2) is sleeved with a hose buffer tube (21), and the hose buffer tube (21) is tightly connected with the hose (2);
the eyepiece sleeve (3) comprises a cylindrical and hollow eyepiece barrel (31), the head end of the eyepiece barrel (31) is tightly connected with a quick connector (32), the quick connector (32) is a luer connector with a through hole in the center, a limiting piece (33) is tightly connected in a through hole at the tail end of the quick connector, the tail end of a hose (2) penetrates through the through hole of the quick connector (32), a hose buffer tube (21) sleeved at the tail end of the hose (2) is tightly connected with the inner wall of the through hole of the quick connector (32) and the limiting piece (33), the tail end of the eyepiece barrel (31) is in matched connection with a mounting seat (34), the head end of the mounting seat (34) is a cylinder (341) with a through hole in the center, the inner wall of the through hole of the cylinder (341) is in matched connection with a stainless steel tube (35), the tail end of the mounting seat (34) is a cylinder tube (342) with a diameter larger than that of the cylinder (341), an eyepiece (4) is arranged in the cylinder (341) and is tightly bonded with the cylinder tube (342) or integrally formed, and the lower part of the eyepiece barrel (31) is provided with an optical transmission interface; at least one fastening screw (343) is arranged on the cylindrical body (341) of the mounting seat (34);
the illumination optical fibers (7) are dispersed between the inner wall of the hose (2) and the quartz image fibers (6); the illumination fiber (7) comprises at least 120 fiber filaments.
2. The flexible ultra-fine diameter endoscope of claim 1, wherein: the hose (2) is a flexible reinforced hose formed by compounding medical plastic and stainless steel wires, the length is 200 mm-3000 mm, the outer diameter is not more than 1mm, and the wall thickness is not more than 0.0625mm.
3. The flexible ultra-fine diameter endoscope of claim 1, wherein: the hose buffer tube (21) is a plastic tube, a heat shrinkage tube or a woven net tube, and is tightly connected with the hose (2) through adhesive bonding, plastic welding or thermal connection.
4. The flexible ultra-fine diameter endoscope of claim 1, wherein: the limiting piece (33) is a clamp pipe, a woven net pipe, a thick-wall plastic pipe, a heat shrink pipe or a woven rope.
5. The flexible ultra-fine diameter endoscope of claim 1, wherein: the pixels of the quartz image fiber (6) are 6000 pixels, 10000 pixels or 30000 pixels.
6. The flexible ultra-fine diameter endoscope of claim 1, wherein: the illumination fiber (7) comprises at least 130 fiber filaments.
7. The flexible ultra-fine diameter endoscope of claim 1, wherein: each fiber wire diameter of the illumination fiber (7) is 0.03mm.
8. The flexible ultra-fine diameter endoscope of claim 1, wherein: the size of the eyepiece cover (5) is ɸ 31.75.75-0.1, the matching length with an optical bayonet is not less than 4.5mm, and the conical surface length of 50 degrees+/-5 degrees is not less than 6mm; the head end of the quartz image fiber (6) sequentially passes through the stainless steel pipe (35), the eye lens barrel (31) and the hose (2) of the eyepiece sleeve (3) and is tightly adhered to the stainless steel pipe (35), and the tail end of the quartz image fiber (6) is exposed out of the tail end of the stainless steel pipe (35) by 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262312.8A CN108403073B (en) | 2018-03-28 | 2018-03-28 | Flexible superfine diameter endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262312.8A CN108403073B (en) | 2018-03-28 | 2018-03-28 | Flexible superfine diameter endoscope |
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| Publication Number | Publication Date |
|---|---|
| CN108403073A CN108403073A (en) | 2018-08-17 |
| CN108403073B true CN108403073B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262312.8A Active CN108403073B (en) | 2018-03-28 | 2018-03-28 | Flexible superfine diameter endoscope |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000121962A (en) * | 1998-10-16 | 2000-04-28 | Olympus Optical Co Ltd | Endoscope |
| US6106456A (en) * | 1995-02-20 | 2000-08-22 | Karl Storz Gmbh & Co. Kg | Device for examining cavities using an endoscope |
| CN201211175Y (en) * | 2008-06-23 | 2009-03-25 | 徐生源 | Superfine flexible-pipe endoscope |
| JP2011224115A (en) * | 2010-04-19 | 2011-11-10 | Hoya Corp | Endoscope |
| CN103945754A (en) * | 2012-09-05 | 2014-07-23 | 奥林巴斯医疗株式会社 | Endoscope |
| CN107397525A (en) * | 2017-08-29 | 2017-11-28 | 广州瑞派医疗器械有限责任公司 | Insert the rotatable electronic cystoscope of head |
| CN208640664U (en) * | 2018-03-28 | 2019-03-26 | 泰州市桥梓光电科技有限公司 | A kind of flexibility ultrafine diameter endoscope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005017204B4 (en) * | 2005-04-14 | 2012-03-22 | Lisa Laser Products Ohg Fuhrberg & Teichmann | Endoscope and method for introducing an optical fiber into a working channel of an endoscope |
-
2018
- 2018-03-28 CN CN201810262312.8A patent/CN108403073B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106456A (en) * | 1995-02-20 | 2000-08-22 | Karl Storz Gmbh & Co. Kg | Device for examining cavities using an endoscope |
| JP2000121962A (en) * | 1998-10-16 | 2000-04-28 | Olympus Optical Co Ltd | Endoscope |
| CN201211175Y (en) * | 2008-06-23 | 2009-03-25 | 徐生源 | Superfine flexible-pipe endoscope |
| JP2011224115A (en) * | 2010-04-19 | 2011-11-10 | Hoya Corp | Endoscope |
| CN103945754A (en) * | 2012-09-05 | 2014-07-23 | 奥林巴斯医疗株式会社 | Endoscope |
| CN107397525A (en) * | 2017-08-29 | 2017-11-28 | 广州瑞派医疗器械有限责任公司 | Insert the rotatable electronic cystoscope of head |
| CN208640664U (en) * | 2018-03-28 | 2019-03-26 | 泰州市桥梓光电科技有限公司 | A kind of flexibility ultrafine diameter endoscope |
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| CN108403073A (en) | 2018-08-17 |
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