CN109171623B - But angle of free conversion's paranasal sinus mirror - Google Patents
But angle of free conversion's paranasal sinus mirror Download PDFInfo
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- CN109171623B CN109171623B CN201810853872.0A CN201810853872A CN109171623B CN 109171623 B CN109171623 B CN 109171623B CN 201810853872 A CN201810853872 A CN 201810853872A CN 109171623 B CN109171623 B CN 109171623B
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- 210000003695 paranasal sinus Anatomy 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 41
- 239000010935 stainless steel Substances 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000452 restraining effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 13
- 210000003928 nasal cavity Anatomy 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 208000025938 nasal cavity disease Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 206010039083 rhinitis Diseases 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- A61B1/233—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 for the nose, i.e. nasoscopes, e.g. testing of patency of Eustachian tubes
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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
- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00181—Optical arrangements characterised by the viewing angles for multiple fixed viewing angles
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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
- A61B1/06—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
- A61B1/0661—Endoscope light sources
- A61B1/0692—Endoscope light sources head mounted
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- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a paranasal sinus mirror capable of freely converting angles, which comprises: handle, nonrust steel pipe, viewing device and angle adjusting device, angle adjusting device includes: an end plate disposed at an end of the stainless steel pipe; the transparent front cover is covered at the front end of the end plate in a protruding manner, and a cavity is formed between the transparent front cover and the end plate; the turning plate can turn relative to the end plate, and the turning angle range is not less than 0-75 degrees; one end of the steel wire is connected to the turning plate, and the other end of the steel wire extends to the handle; the telescopic adjusting mechanism is arranged on the handle and connected with the steel wire to control the steel wire to move along the stainless steel pipe to drive the turning plate to turn; the objective lens of the observation device is arranged on the turning plate. The sinus mirror with the lens angle capable of being converted is used for seeing the best operation position in the nasal operation in any direction, only one sinus mirror is needed in the whole operation process, the operation is convenient to carry out, and the equipment resources are saved.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a paranasal sinuscope capable of freely changing angles.
Background
At present, when treating diseases of nasal cavity diseases such as rhinitis, nasosinusitis and the like, a sinus mirror is basically used, and the main structure of the sinus mirror comprises: the observation device mainly comprises an objective lens, a light guide fiber and an ocular lens, wherein the objective lens and the ocular lens are respectively arranged at two end parts of the stainless steel tube and the handle, the most commonly used objective lens is a CCD (charge coupled device) objective lens, and an image signal acquired by the objective lens is transmitted to the ocular lens through a transmission line; one end of the light guide fiber is communicated with a light guide interface arranged on the side part of the handle to be connected with a light source, and the other end of the light guide fiber extends to the end part of the stainless steel tube to provide the light source for the objective lens; the sinus mirror has strong brightness and clear imaging, can directly look at diseased tissues of the nasal cavity for diagnosis, and provides great convenience for medical work.
Only, limited to the hard tube structure of the stainless steel tube, the end of the stainless steel tube has a fixed angle, and then the objective lens installed on the stainless steel tube has a fixed angle, in order to meet the requirements of most of the nasal sinus operations clinically, the nasal sinus endoscope is designed into a common series according to the angle of the objective lens, and 0 degree (and the stainless steel tube adopts a flat end surface), 30 degrees, 45 degrees and 70 degrees. Even so, when a medical worker performs a nasal operation, the medical worker often needs to replace the sinus mirror with different degrees due to different operation angles, and further, the situation that the sinus mirrors with different lens degrees need to be used in the same sinus operation often occurs in clinical work, but because the lens angles are arranged in a series step-shaped manner, the nasal sinus mirror cannot be really covered in a full angle, and the optimal operation part cannot be observed even if the multi-angle lens is replaced; meanwhile, different nasosinusitis mirrors enter and exit from the nasal cavity, the operation is troublesome, and the repeated disinfection is needed, which brings inconvenience to the operation and also causes waste of surgical equipment resources.
Disclosure of Invention
In order to solve the problems, the invention aims to provide the sinus mirror with the lens angle capable of being changed so as to see the optimal operation position in the nasal operation in any direction, only one sinus mirror is needed in the whole operation process, the operation is convenient to carry out, and the equipment resources are saved.
In order to achieve the technical effects, the technical scheme adopted by the invention is as follows:
a freely convertible angle sinoscope comprising: interconnect's handle and nonrust steel pipe install viewing device in nonrust steel pipe and the handle, viewing device includes: objective, optic fibre and eyepiece, objective and eyepiece set up respectively at the both ends of nonrust steel pipe and handle and connect through the transmission line, and the leaded light interface that the handle lateral part set up is put through to optic fibre's one end, and the other end extends to the tip of nonrust steel pipe to set up a leaded light cover plate at its tip, still include: an angle adjustment device, the angle adjustment device comprising:
the end plate is arranged at the end part of the stainless steel pipe, and a wire passing hole is formed in the end plate;
the transparent front cover is covered at the front end of the end plate in a protruding manner, and a cavity is formed between the transparent front cover and the end plate;
the turning plate is arranged in the cavity, one end of the turning plate is hinged with the end plate, so that the turning plate can turn relative to the end plate, and the turning angle range is 0-75 degrees;
one end of the steel wire is connected to one end of the turning plate far away from the hinge point, and the other end of the steel wire penetrates through the end plate and the stainless steel pipe and extends to the handle; and
the telescopic adjusting mechanism is arranged on the handle and connected with the end part of the steel wire, which is positioned at the handle, so as to control the steel wire to move along the stainless steel pipe to drive the turning plate to turn;
the objective lens is arranged on the turning plate, and the light guide cover plate is arranged on the end plate and/or the turning plate.
In the nasosinusitis mirror, the objective lens of the observation device is arranged on the turning plate, and the turning angle of the turning plate is adjusted by driving the steel wire through the telescopic adjusting mechanism, so that the lens of the objective lens can be adjusted at any angle within the range of 0-75 degrees, and the whole turning plate is protected by the transparent front cover, so that the objective lens can move freely in the nasal cavity or other operation incisions without influencing the viewing effect of the objective lens, the optimal operation part can be seen in the nasal operation in any direction, and the operation effect is ensured; after the stepless adjustment of the lens angle is realized, the demands for the change of the operation angle are met without frequently replacing the paranasal sinuses with different degrees, only one paranasal sinus scope is needed in the whole course of the operation, the operation is convenient, and the equipment resources are saved.
Furthermore, an accommodating groove is formed in one side portion of the handle, the accommodating groove extends along the axial direction of the handle, and the telescopic adjusting mechanism is arranged in the accommodating groove; the telescopic adjusting mechanism comprises: the knob shaft is arranged in the accommodating groove in an extending mode along the axial direction of the handle, anti-skid grains are arranged on the outer surface of the knob shaft, the knob shaft is provided with a through shaft hole, internal threads with opposite rotation directions are arranged at two ends of the shaft hole, and the first adjusting rod and the second adjusting rod are respectively in threaded connection with two ends of the knob shaft; the outer end of the first adjusting rod is fixedly connected to one side wall of the accommodating groove, which is far away from the stainless steel pipe; the outer end of the second adjusting rod can axially slide to penetrate through one side wall, close to the stainless steel pipe, of the accommodating groove and is connected with the end portion, located at the handle, of the steel wire.
By adopting the telescopic adjusting mechanism with the structure, the two ends of the knob shaft are in threaded connection with the first adjusting rod and the second adjusting rod which are opposite in rotating direction, and the knob shaft is rotated, so that the first adjusting rod and the second adjusting rod are close to or far away from each other at the same time, the effect of rapid telescopic response of the first adjusting rod and the second adjusting rod is achieved, and the turning plate and the angle of the objective lens on the turning plate can be conveniently adjusted; and the structure is simple and compact, and the nasal sinus speculum is suitable for being used on a small nasal sinus speculum.
Further, the second adjusting rod is provided with a threaded section and a polygonal shaft section which are coaxially connected, and the polygonal shaft section can penetrate through a shaft hole of the knob shaft; and a polygonal hole which is matched with the polygonal shaft section in a sliding manner is formed in one side wall of the accommodating groove, which is close to the stainless steel pipe, and the polygonal shaft section penetrates through the polygonal hole to be connected with the steel wire.
Through the cooperation of polygonal hole axle, restraint second regulation pole makes it can not circumferential direction, and only can the axial is flexible, simple structure, small and exquisite practicality.
Furthermore, a tension spring is arranged in a shaft hole of the knob shaft, and two ends of the tension spring are respectively connected with the end parts of a first adjusting rod and a second adjusting rod which are screwed in the shaft hole.
Axial tension is applied to the first adjusting rod and the second adjusting rod through the tension springs, so that certain self-locking performance is achieved between threads of the first adjusting rod and the second adjusting rod and internal threads of the knob shaft, and stability of the objective after angle adjustment is guaranteed; and the bigger the angle of the objective lens is, the larger the distance between the first adjusting rod and the second adjusting rod is, the larger the tension of the tension spring is, the better the self-locking effect is naturally, and the larger the angle of the objective lens is, the worse stability of the objective lens is.
Furthermore, the end parts of the first adjusting rod and the second adjusting rod, which are screwed in the shaft holes, are provided with concave holes capable of containing tension springs.
Through setting up the shrinkage pool, can adjust the pole at first regulation pole and second and hold the extension spring when being close to, make flexible adjustment mechanism compacter.
Further, the accommodating groove is formed in the handle between the stainless steel pipe and the light guide interface.
The telescopic adjusting mechanism is arranged on the handle at the front side of the light guide interface through the position arrangement of the accommodating groove, and the arrangement of the steel wire does not need to cross the light guide interface, so that the internal structure of the handle can be simplified; and enough space is reserved for the operation of the telescopic adjusting mechanism, the length of the handle is shortened, and the operation is convenient.
Furthermore, the handle surface outside the containing groove is provided with scales, and the scales are matched with the turning angle of the turning plate relative to the end plate.
Through setting up the scale of demarcation, can know clearly the rotation angle of turning over board and objective, provide the reference for the operation, make things convenient for going on of operation.
Furthermore, a restraint pipe matched with the steel wire is arranged in the stainless steel pipe, and the steel wire can axially slide in the restraint pipe.
Through setting up about pipe, guarantee when drawing the steel wire flexible through flexible adjustment mechanism, the steel wire can only be axial motion under the circumference restraint of about pipe to guarantee to the promotion upset effect of turning over the board, reach the biggest angle modulation under the shortest flexible regulating variable, compact structure, the simple operation is reliable.
Furthermore, a groove capable of containing the turning plate is arranged on the end plate, and a stepped hole structure is formed by the groove and the wire passing hole.
The end plate can be completely accommodated in the groove of the end plate when the angle of the end plate is 0 degree, the arrangement of the objective lens transmission line is not influenced, the maximum action amplitude can be realized in the limited cavity of the transparent front cover, and the structure is more compact.
Furthermore, the light guide cover plate is arranged on the end plate and the turning plate.
Through the mode that sets up the leaded light cover plate simultaneously on end plate and the board that turns over, for objective provide a fixed light source and a movable light source that can synchronous corner thereupon, ensure to provide the illumination of highlight brightness for the operation angle of difference, guarantee the luminance of objective frame environment.
In conclusion, the sinus mirror capable of converting the lens angle provided by the invention can randomly adjust the angle of the objective lens within the range of 0-75 degrees, so that the effect of seeing the best operation part in the nasal operation in any direction is achieved, only one sinus mirror is needed in the whole operation process, the sinus mirror is prevented from being replaced in the operation, the operation is convenient to carry out, and the equipment resources are saved.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic front view of a handle of the present embodiment;
FIG. 3 is a schematic cross-sectional view of section A in FIG. 2;
FIG. 4 is a schematic cross-sectional view of section B in FIG. 2;
FIG. 5 is a schematic cross-sectional view of section C of the telescoping adjustment mechanism of FIG. 2 in a retracted state;
FIG. 6 is a schematic cross-sectional view of section C of the telescoping adjustment mechanism of FIG. 2 in an extended state;
FIG. 7 is a schematic front view of the stainless steel tube end at 0 ° of the objective lens of the present embodiment;
FIG. 8 is a cross-sectional view of section D of FIG. 7;
FIG. 9 is a schematic front view of the stainless steel tube end in the state of the objective lens at the corner according to the present embodiment;
FIG. 10 is a cross-sectional view of section E in FIG. 9;
reference numerals: 10-stainless steel tube, 11-constraint tube, 20-handle, 21-light guide interface, 22-containing groove, 23-scale, 24-polygonal hole, 30-observation device, 31-objective lens, 32-light guide fiber, 33-ocular lens, 34-transmission line, 35-light guide cover plate, 40-angle adjusting device, 41-end plate, 411-wire through hole, 412-groove, 42-transparent front cover, 43-turning plate, 44-steel wire, 45-telescopic adjusting mechanism, 451-knob shaft, 452-first adjusting rod, 453-second adjusting rod, 4531-threaded section, 4532-polygonal shaft section, 454-tension spring and 455-concave hole.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 10, the main structure of the freely convertible angle sinus mirror provided in this embodiment is the same as that of a conventional sinus mirror, and both of them include: handle 20 and stainless steel pipe 10 that interconnect, install viewing device 30 in stainless steel pipe 10 and the handle 20, viewing device 30 includes: the objective lens 31, the light guide fiber 32 and the ocular lens 33, the objective lens 31 and the ocular lens 33 are respectively arranged at two ends of the stainless steel tube 10 and the handle 20 and are connected through a transmission line 34, one end of the light guide fiber 32 is communicated with the light guide interface 21 arranged at the side part of the handle 20, the other end extends to the end part of the stainless steel tube 10, and a light guide cover 35 is arranged at the end part of the light guide fiber to provide a light source for the objective lens 31, the objective lens 31 is extended into a nasal cavity or an operation opening and the like through the hard stainless steel tube 10 when in use, the light guide interface 21 on the handle 20 is connected with the light source, and the ocular lens 33 is connected with subsequent equipment to display image information acquired by. The above are all known structures of the conventional sinoscope, and are not described herein again, and the specific part of the present embodiment, namely the angle adjusting device 40 for adjusting the angle of the objective lens 31, is described in detail later.
The angle adjusting device 40 includes: end plate 41, transparent front cover 42, turnover plate 43, steel wire 44 and telescopic adjusting mechanism 45. The end plate 41 is arranged at the end part of the stainless steel tube 10, and the end plate 41 is provided with a wire passing hole 411; a cover which is protruded outwards from the transparent front cover 42 is arranged at the front end of the end plate 41 so as to form a cavity between the transparent front cover 42 and the end plate 41, and the turning plate 43 is arranged in the cavity; one end of the turning plate 43 is hinged with the end plate 41, so that the turning plate 43 can be turned relative to the end plate 41, the turning angle range is 0-75 degrees, and the objective lens 31 is arranged on the turning plate 43, so that the lens angle of the objective lens 31 can be adjusted within the range of 0-75 degrees, and the requirement on the lens angle during the operation is met; the light guiding cover 35 may be disposed on the end plate 41 and/or the turning plate 43, both of which are disposed in this embodiment, to provide a fixed light source and a movable light source capable of rotating synchronously with the fixed light source for the objective lens 31, so as to ensure high brightness illumination for different surgical angles and ensure brightness of the viewing environment of the objective lens 31. Referring to fig. 9 and 10, in the present embodiment, the end plate 41 is provided with a groove 412 capable of accommodating the flap 43, and the groove 412 and the wire passing hole 411 form a stepped hole structure, so that the end plate 41 can be completely accommodated in the groove 412 of the end plate 41 when the angle of the end plate 41 is 0 °, the arrangement of the transmission line 34 of the objective lens 31 is not affected, the maximum action range can be realized in the limited cavity of the transparent front cover 42, and the structure is more compact.
One end of the steel wire 44 is connected to one end of the turning plate 43 far away from the hinge point, and the other end of the steel wire 44 passes through the end plate 41 and the stainless steel tube 10 to extend to the handle 20 and is connected with a telescopic adjusting mechanism 45 arranged on the handle 20, so that the telescopic adjusting mechanism 45 is telescopic, and the steel wire 44 can be controlled to move along the stainless steel tube 10 to drive the turning plate 43 to turn. In the embodiment, the constraint tube 11 adapted to the steel wire 44 is arranged in the stainless steel tube 10, and the steel wire 44 passes through the constraint tube 11 and can axially slide in the constraint tube, so that when the steel wire 44 is drawn to stretch by the stretching adjusting mechanism 45, the steel wire 44 can only axially move under the circumferential constraint of the constraint tube 11, the pushing and turning effect on the turning plate 43 is ensured, the maximum angle adjustment is achieved under the shortest stretching adjustment amount, the structure is compact, and the operation is convenient and reliable; of course, the constraining tube 11 may be an axial hole provided in the wall of the stainless steel tube 10 as long as the constraining tube 11 can be circumferentially constrained.
Referring to fig. 1 to 6, the telescopic adjusting mechanism 45 in the present embodiment is disposed on the handle 20 between the stainless steel tube 10 and the light guide interface 21, and the steel wire 44 is not required to pass through the light guide interface 21, so as to simplify the internal structure of the handle 20; and enough space is reserved for the operation of the telescopic adjusting mechanism 45, the length of the handle 20 is shortened, and the operation is convenient. Specifically, an accommodating groove 22 is formed in the side portion of the handle 20 in front of the light guide interface 21, the accommodating groove 22 extends along the axial direction of the handle 20, and the telescopic adjustment mechanism 45 is disposed in the accommodating groove 22.
The telescopic adjustment mechanism 45 includes: the knob shaft 451 is arranged in the containing groove 22 in a way of extending along the axial direction of the handle 20, the outer surface of the knob shaft 451 is provided with anti-slip threads for rotation, the knob shaft 451 is provided with a through shaft hole, and two ends of the shaft hole are provided with internal threads with opposite rotation directions; the first adjusting rod 452 and the second adjusting rod 453 are respectively screwed at two ends of the knob shaft 451, the outer end of the first adjusting rod 452 is fixedly connected to one side wall of the accommodating groove 22 far away from the stainless steel tube 10, the outer end of the second adjusting rod 453 can axially slide to penetrate through one side wall of the accommodating groove 22 near the stainless steel tube 10 and is connected with the end part of the steel wire 44 located at the end of the handle 20, so that when the knob shaft 451 is rotated, the first adjusting rod 452 and the second adjusting rod 453 can be simultaneously close to or far away to achieve the effect of rapid telescopic response of the two, the turning plate 43 and the adjustment of the angle of the objective lens 31 thereon are convenient, the structure is simple and compact, and the nasal sinus speculum is suitable for being used on a small and exquisite. In order to ensure that the second adjustment bar 453 can only move axially to ensure the screwing effect, referring to fig. 5, the second adjustment bar 453 of this embodiment has a threaded section 4531 and a polygonal shaft section 4532 which are coaxially connected, and the polygonal shaft section 4532 can pass through the shaft hole of the knob shaft 451 to ensure that the whole second adjustment bar 453 can freely extend and contract in the shaft hole of the knob shaft 451 after being screwed with the knob shaft 451 through the threaded section 4531; referring to fig. 4, a polygonal hole 24 which is slidably matched with a polygonal shaft segment 4532 is formed in one side wall of the accommodating groove 22 close to the stainless steel tube 10, and the polygonal shaft segment 4532 penetrates through the polygonal hole 24 to be connected with the steel wire 44; the second adjusting rod 453 is restrained to be incapable of rotating circumferentially and only capable of axially extending and retracting in a polygonal hole-shaft matching mode, and the structure is simple, small and practical.
Meanwhile, referring to fig. 6, a tension spring 454 is further disposed in the shaft hole of the knob shaft 451, and both ends of the tension spring 454 are respectively connected with the ends of the first adjusting lever 452 and the second adjusting lever 453 screwed in the shaft hole, so that an axial tension is applied to the first adjusting lever 452 and the second adjusting lever 453 through the tension spring 454, and further, a certain self-locking performance is provided between the threads of the first adjusting lever 452 and the second adjusting lever 453 and the internal threads of the knob shaft 451, thereby ensuring the stability of the objective lens 31 after the angle adjustment; the larger the angle of the objective lens 31 is, the larger the distance between the first adjusting lever 452 and the second adjusting lever 453 is, the larger the tension of the tension spring 454 is, and the self-locking effect is naturally better, so that the self-locking mechanism is suitable for the use environment in which the stability is worse when the angle of the objective lens 31 is larger. In this embodiment, the ends of the first adjusting lever 452 and the second adjusting lever 453 screwed into the shaft holes are provided with concave holes 455 capable of accommodating the tension spring 454, so that the tension spring 454 is accommodated when the first adjusting lever 452 and the second adjusting lever 453 approach each other, thereby making the telescopic adjusting mechanism 45 more compact.
Referring to fig. 2, the scale 23 is disposed on the surface of the handle 20 outside the accommodating groove 22, and the scale 23 matches with the turning angle of the turning plate 43 relative to the end plate 41, so that the rotation angles of the turning plate 43 and the objective lens 31 can be clearly known, thereby providing a reference for the operation and facilitating the operation.
In the above paranasal sinuses capable of freely changing angles, the objective lens 31 of the observation device 30 is arranged on the turning plate 43, and then the flexible adjusting mechanism 45 pulls the steel wire 44 to adjust the turning angle of the turning plate 43, so that the lens of the objective lens 31 can be adjusted at any angle within the range of 0-75 degrees: referring to fig. 5, 7 and 8, the knob shaft 451 is rotated toward the side close to the first adjustment lever 452 to make the first adjustment lever 452 and the second adjustment lever 453 close to each other, the wire 44 is retracted, the flap 43 is at 0 ° to be attached to the end plate 41, and the objective lens 31 observes the affected part at an angle of 0 °; referring to fig. 6, 9 and 10, the knob shaft 451 is rotated toward the side close to the second adjustment lever 453 to move the first adjustment lever 452 and the second adjustment lever 453 away from each other, the wire 44 is pushed to extend, the flap 43 is driven to turn relative to the end plate 41, the larger the distance between the first adjustment lever 452 and the second adjustment lever 453 is, the larger the turning angle of the flap 43 is, and the objective lens 31 obtains an observation image from the corresponding angle. The whole turning plate 43 is protected by the transparent front cover 42, so that the objective lens 31 can move freely in the nasal cavity or other operation incisions without influencing the viewing effect, the optimal operation position can be seen in the nasal operation in any direction, and the operation effect is ensured; after the stepless adjustment of the lens angle is realized, the demands for the change of the operation angle are met without frequently replacing the paranasal sinuses with different degrees, only one paranasal sinus scope is needed in the whole course of the operation, the operation is convenient, and the equipment resources are saved.
In conclusion, the sinus mirror capable of converting the lens angle in the technical scheme can adjust the angle of the lens of the objective lens 31 within the range of 0-75 degrees, so that the optimal operation position can be seen in the nasal operation in any direction, only one sinus mirror needs to be used in the whole operation process, the sinus mirror is prevented from being replaced in the operation, the operation is convenient, and the equipment resources are saved.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present 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 solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.
Claims (9)
1. A freely convertible angle sinoscope comprising: interconnect's handle and nonrust steel pipe install viewing device in nonrust steel pipe and the handle, viewing device includes: objective, optic fibre and eyepiece, objective and eyepiece set up respectively at the both ends of nonrust steel pipe and handle and connect through the transmission line, and the leaded light interface that the handle lateral part set up is put through to optic fibre's one end, and the other end extends to the tip of nonrust steel pipe to set up a leaded light cover plate at its tip, its characterized in that still includes: an angle adjusting device is arranged on the base plate,
the angle adjusting device includes:
the end plate is arranged at the end part of the stainless steel pipe, and a wire passing hole is formed in the end plate;
the transparent front cover is covered at the front end of the end plate in a protruding manner, and a cavity is formed between the transparent front cover and the end plate;
the turning plate is arranged in the cavity, one end of the turning plate is hinged with the end plate, so that the turning plate can turn relative to the end plate, and the turning angle range is 0-75 degrees;
one end of the steel wire is connected to one end of the turning plate far away from the hinge point, and the other end of the steel wire penetrates through the end plate and the stainless steel pipe and extends to the handle; and
the telescopic adjusting mechanism is arranged on the handle and connected with the end part of the steel wire, which is positioned at the handle, so as to control the steel wire to move along the stainless steel pipe to drive the turning plate to turn;
the objective lens is arranged on the turning plate, and the light guide cover plate is arranged on the end plate and/or the turning plate.
2. The nasoscope capable of freely changing angles according to claim 1, wherein a containing groove is formed in one side portion of the handle, the containing groove extends in the axial direction of the handle, and the telescopic adjusting mechanism is arranged in the containing groove;
the telescopic adjusting mechanism comprises: the knob shaft is arranged in the accommodating groove in an extending mode along the axial direction of the handle, anti-skid grains are arranged on the outer surface of the knob shaft, the knob shaft is provided with a through shaft hole, internal threads with opposite rotation directions are arranged at two ends of the shaft hole, and the first adjusting rod and the second adjusting rod are respectively in threaded connection with two ends of the knob shaft; the outer end of the first adjusting rod is fixedly connected to one side wall of the accommodating groove, which is far away from the stainless steel pipe; the outer end of the second adjusting rod can axially slide to penetrate through one side wall, close to the stainless steel pipe, of the accommodating groove and is connected with the end portion, located at the handle, of the steel wire.
3. The angle freely convertible paranasal sinus mirror according to claim 2, wherein the second adjustment lever has a threaded section and a polygonal shaft section coaxially connected, the polygonal shaft section being capable of passing through a shaft hole of the knob shaft; and a polygonal hole which is matched with the polygonal shaft section in a sliding manner is formed in one side wall of the accommodating groove, which is close to the stainless steel pipe, and the polygonal shaft section penetrates through the polygonal hole to be connected with the steel wire.
4. The nasoscope capable of freely changing angles of claim 2, wherein a tension spring is arranged in the shaft hole of the knob shaft, and two ends of the tension spring are respectively connected with the ends of the first adjusting rod and the second adjusting rod which are screwed in the shaft hole.
5. The nasoscope capable of freely changing angles of claim 4, wherein the ends of the first adjusting rod and the second adjusting rod screwed in the shaft holes are provided with concave holes capable of accommodating tension springs.
6. The sinus mirror of any of claims 2-4, wherein the receiving groove is disposed on the handle between the stainless steel tube and the light guide interface.
7. The angle-convertible nasoscope of claim 6, wherein the surface of the handle outside the receiving groove is provided with a scale that matches the flip angle of the flap relative to the end plate.
8. The freely convertible angle sinoscope of claim 7, wherein a restraining tube fitted with a steel wire is disposed within the stainless steel tube, the steel wire being axially slidable within the restraining tube.
9. The rhinoscope of claim 1, wherein the end plate is provided with a groove for accommodating the turning plate, and the groove and the wire hole form a stepped hole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810853872.0A CN109171623B (en) | 2018-07-30 | 2018-07-30 | But angle of free conversion's paranasal sinus mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810853872.0A CN109171623B (en) | 2018-07-30 | 2018-07-30 | But angle of free conversion's paranasal sinus mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109171623A CN109171623A (en) | 2019-01-11 |
| CN109171623B true CN109171623B (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810853872.0A Expired - Fee Related CN109171623B (en) | 2018-07-30 | 2018-07-30 | But angle of free conversion's paranasal sinus mirror |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112370089A (en) * | 2020-11-16 | 2021-02-19 | 江苏安德瑞医疗器械配件有限公司 | Hook type biopsy forceps with self-correcting function |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1631185B1 (en) * | 2003-04-22 | 2014-06-18 | Jorge A. Campos | Apparatus for viewing a visually obscured portion of a cavity |
| US7678117B2 (en) * | 2004-06-07 | 2010-03-16 | Novare Surgical Systems, Inc. | Articulating mechanism with flex-hinged links |
| CN101889853B (en) * | 2010-08-06 | 2013-01-16 | 上海交通大学 | Three-dimensional endoscope system capable of rotating freely for angles |
| WO2013019859A1 (en) * | 2011-08-03 | 2013-02-07 | Alcon Research, Ltd. | Articulating ophthalmic surgical probe |
| CN203724069U (en) * | 2013-06-16 | 2014-07-23 | 马聚峰 | Anesthetic laryngoscope with adjustable endoscopic lens angle |
| CN204723018U (en) * | 2015-06-03 | 2015-10-28 | 北京大学第三医院 | The hysteroscope of adjustable angle |
| CN205041349U (en) * | 2015-09-07 | 2016-02-24 | 北京谊安医疗系统股份有限公司 | Endoscope angle adjustment mechanism |
| CN105433896B (en) * | 2015-12-17 | 2017-02-01 | 中国人民解放军第三军医大学第二附属医院 | Bendable sinoscope |
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| CN109171623A (en) | 2019-01-11 |
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