CN115553698A - Disposable nasopharyngoscope - Google Patents

Disposable nasopharyngoscope Download PDF

Info

Publication number
CN115553698A
CN115553698A CN202211222132.XA CN202211222132A CN115553698A CN 115553698 A CN115553698 A CN 115553698A CN 202211222132 A CN202211222132 A CN 202211222132A CN 115553698 A CN115553698 A CN 115553698A
Authority
CN
China
Prior art keywords
handle
rack
tube
nasopharyngoscope
traction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202211222132.XA
Other languages
Chinese (zh)
Other versions
CN115553698B (en
Inventor
葛文彤
倪鑫
王蓬鹏
董国庆
唐力行
杨小健
张薇
肖潇
韩阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Childrens Hospital
Original Assignee
Beijing Childrens Hospital
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Childrens Hospital filed Critical Beijing Childrens Hospital
Priority to CN202211222132.XA priority Critical patent/CN115553698B/en
Publication of CN115553698A publication Critical patent/CN115553698A/en
Application granted granted Critical
Publication of CN115553698B publication Critical patent/CN115553698B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • A61B1/233—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
    • 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
    • A61B1/00066—Proximal part of endoscope body, e.g. handles
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/01—Guiding arrangements therefore
    • 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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • 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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • A61B1/018—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 characterised by internal passages or accessories therefor for receiving instruments
    • 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
    • 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
    • A61B1/267—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 respiratory tract, e.g. laryngoscopes, bronchoscopes

Abstract

The embodiment of the invention discloses a disposable nasopharyngoscope, and relates to the technical field of medical instruments. The separation of the handle assembly part structural part is convenient to realize, so that the nasopharyngoscope part structural part is easy to replace in the using process. The method comprises the following steps: the handle is provided with a lens tube control knob, the lens tube control knob is axially connected with a support shaft, and the support shaft is provided with a gear; the rear end of the main body pipe is detachably connected into the hollow part of the handle, the interior of the main body pipe is communicated with the hollow part of the handle, a drawing rack is axially arranged in the main body pipe, and the drawing rack is meshed with the gear; the traction piece is arranged at the front end of the traction rack, and the free end of the traction piece is arranged in a penetrating way and connected to the inner wall of the bendable endoscope tube; the support shaft can move axially under the pressing of external force, the support shaft is pressed, and the traction rack and the gear are meshed or separated mutually. The invention is suitable for the inspection and operation treatment scenes of the nasopharynx and larynx in the otolaryngological department.

Description

Disposable nasopharyngoscope
Technical Field
The invention relates to the technical field of medical instruments, in particular to a disposable nasopharyngoscope.
Background
A nasopharyngoscope as an instrument for medical detection can enter a natural channel of a human body to check and even treat pathological changes of the nasopharyngolaryngeal part of the human body. At present, a nasopharyngoscope mainly comprises a handle assembly and an insertion part, wherein the insertion part is used for being inserted into the nasopharyngolaryngeal part of a human body for examination or treatment, and the handle assembly controls the insertion part to realize operations such as bending and rotation through an internal traction piece.
Wherein, or be restricted by handle subassembly body structure, or be restricted by handle subassembly inner structure restriction, be not convenient for realize the separation of handle subassembly part structure spare, cause the difficult change of part structure spare in the use of nasopharyngoscope.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a disposable nasopharyngoscope, which facilitates separation of a part of structural members of a handle assembly, so that the part of structural members of the nasopharyngoscope is easy to replace during use.
In order to achieve the above purpose, the nasopharyngoscope according to the embodiment of the present invention comprises: the handle is of a hollow structure, a tube control knob is arranged on the handle, the tube control knob is axially connected with a support shaft, and a gear is arranged on the support shaft;
the rear end of the main body pipe is detachably connected into the hollow part of the handle, the interior of the main body pipe is communicated with the hollow part of the handle, a drawing rack is axially arranged in the main body pipe, and the drawing rack is meshed with the gear;
the rear end of the bendable mirror tube is connected to the front end of the main tube and communicated with the interior of the main tube, and the front end of the bendable mirror tube is provided with a visible optical element;
the traction piece is arranged at the front end of the traction rack, and the free end of the traction piece is penetrated and connected to the inner wall of the bendable endoscope tube;
the support shaft can move axially under the pressing of external force, the support shaft is pressed, and the traction rack and the gear are meshed or separated mutually.
Optionally, an axle seat is arranged on the inner wall of the handle corresponding to the support axle, a first axle hole is arranged on the axle seat, a reset elastic element is arranged in the first axle hole, and the tail end of the support axle is arranged in the first axle hole and abuts against the reset elastic element.
Optionally, an opening is formed in the side wall of the handle, the scope control knob is arranged in the opening, a limiting pressure plate is arranged at the position, facing the opening, of the scope control knob and corresponding to the opening, a second shaft hole is formed in the scope control knob, the support shaft is clamped with the second shaft hole of the scope control knob in the circumferential direction, and the support shaft is movable relative to the second shaft hole in the axial direction;
and a third shaft hole is formed in the limiting pressure plate corresponding to the second shaft hole, and the head end of the supporting shaft penetrates through the second shaft hole and extends out of the third shaft hole.
Optionally, a traction rack limiting track is arranged in the main body pipe, and the traction rack is slidably arranged in the traction rack limiting track.
Optionally, the pulling rack includes a first pulling rack and a second pulling rack arranged in parallel at an interval, at least part of the first pulling rack and at least part of the second pulling rack are respectively slidably arranged in the corresponding pulling rack limiting rail, a first elastic member is arranged on a non-tooth side of the first pulling rack and the part located outside the pulling rack limiting rail, a second elastic member is arranged on a non-tooth side of the second pulling rack and the part located outside the pulling rack limiting rail, and the first elastic member and the second elastic member are respectively abutted against the inner wall of the handle.
Optionally, the rear end of the main tube is snapped into the hollow portion of the handle.
Optionally, the lower end of the main tube is provided with a protruding insertion part, the inner wall of the handle is provided with a groove surface with a predetermined length in the circumferential direction, and the main tube is inserted into the groove surface through the protruding insertion part and connected with the handle.
Optionally, the visible optical element comprises: the convex insertion part is provided with a data/power supply interface electrically connected with the CMOS camera, and a through structure is arranged on the side wall of the groove surface section of the main body tube and corresponds to the data interface;
when the data/power supply line passes through the through structure and is inserted into the data/power supply interface, the data/power supply line is at least used for fixing and limiting the main pipe and the handle.
Optionally, the visible optical element is a prism, a planar mirror group, or a CMOS camera.
Optionally, the bendable mirror tube comprises: the pipe comprises a front pipe section and a rear pipe section, wherein the front pipe section and the rear pipe section respectively comprise an inner hose, a snake-bone-shaped structure body and a rubber layer, the outer circumferential surface of the inner hose is wound with the snake-bone-shaped structure body, and the rubber layer is wrapped on the outer side of the snake-bone-shaped structure body;
the space density between the bone segments of the snake bone-shaped structural body of the front pipe section is smaller than that between the bone segments of the snake bone-shaped structural body of the rear pipe section.
The nasopharyngoscope provided by the embodiment of the invention is improved by the structure of the handle component of the nasopharyngoscope, and specifically comprises the following components: a mirror tube control knob is arranged on the handle, the mirror tube control knob is axially connected with a support shaft, and a gear is arranged on the support shaft; the rear end of the main body pipe is detachably connected to the handle, the interior of the main body pipe is communicated with the hollow part of the handle, a drawing rack is axially arranged in the main body pipe, and the drawing rack is meshed with the gear; the posture of the bendable mirror tube can be controlled by the mirror tube control knob, for example, the bendable mirror tube is bent to 0-115 degrees towards the back side or the ventral side, so as to carry out examination, treatment and the like of the nose and throat part. Because the main part pipe and the handle are detachably connected, the supporting shaft is arranged to axially move under the action of external force, and the supporting shaft is pressed, the traction rack is meshed with or separated from the gear, so that in the using process, when the main part pipe and the bendable endoscope pipe at the front end of the main part pipe need to be replaced, only the supporting shaft needs to be pressed, and the gear axially moves towards the tail end of the supporting shaft, so that the separation of the internal traction rack and the gear and other structural parts can be realized, and the main part pipe can be integrally detached from the handle. When a new main body tube and the bendable endoscope tube at the front end of the main body tube need to be replaced, only the rack inside the main body tube needs to be inserted into the handle, the supporting shaft is pressed, the gear axially moves towards the head end of the supporting shaft, and the gear is meshed with the rack to complete replacement. Therefore, this scheme is convenient for realize the separation of the partial structure of handle assembly to make easy to change in the partial structure use of nasopharyngoscope, help the partial structure of nasopharyngoscope to develop towards disposable medical instrument consumptive material direction technically.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a nasopharyngoscope according to the present invention;
FIG. 2 is a schematic view showing the separation of the handle and the main body tube of the nasopharyngoscope according to one embodiment of the present invention;
FIG. 3 is a schematic view of a partially enlarged structure of an embodiment of the present invention during the unlocking and separating process of the main tube and the handle;
FIG. 4 is a partially enlarged view illustrating a structure of the main tube and the handle during locking thereof;
it should be noted that the circle lines in fig. 3 and 4 are not identifiers of the partial enlarged view, and are not structures or contour lines of the technical solution of the present invention itself.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It should be apparent that numerous technical details are set forth in the following specific examples in order to provide a more thorough description of the present invention, it should be apparent to one skilled in the art that the present invention may be practiced without some of these details. In addition, some methods, means, components and applications thereof known to those skilled in the art are not described in detail in order to highlight the gist of the present invention, but the implementation of the present invention is not affected. The embodiments described herein are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The nasopharyngoscope provided by the embodiment of the invention is suitable for nasopharyngolaryngeal examination and surgical treatment in the otolaryngological department, has the characteristics of simple structure and convenience in use, is easy to replace a part of structural parts in contact with patients, can be used as disposable medical consumables, is special for special persons, and can effectively block cross infection of various infectious diseases among patients to a certain extent.
Referring to fig. 1 to 4, a nasopharyngoscope according to an embodiment of the present invention includes: a handle 10, a main tube 20, a bendable mirror tube 30 and a pulling member (not shown).
The handle 10 is of a hollow structure, the handle 10 is provided with a mirror tube control knob 11, the mirror tube control knob 11 is axially connected with a support shaft 12, and the support shaft 12 is provided with a gear 13. In some embodiments, the outer contour surface of the mirror tube control knob 11 is further provided with a non-slip portion 111, and the non-slip portion 111 is a texture or a protrusion or a groove or the like provided on the outer contour surface.
The rear end of the main body tube 20 is detachably connected to the hollow portion of the handle 10, the interior of the main body tube 20 communicates with the hollow portion of the handle 10, a pulling rack 21 is axially provided in the main body tube 20, and the pulling rack 21 and the gear 13 are engaged with each other.
The rear end of the bendable mirror tube 30 is connected to the front end of the main tube 20 and is communicated with the interior of the main tube 20, and the front end of the bendable mirror tube 30 is provided with a visual optical element. The outer diameter of the bendable mirror tube 30 can be 2-4 mm.
A pulling member (not shown) disposed at the front end of the pulling rack 21, and a free end of the pulling member is inserted through and connected to the inner wall of the bendable mirror tube 30. The traction member may be a steel wire rope.
The supporting shaft 12 is axially movable under external force pressing, the supporting shaft 12 is pressed, and the pulling rack 21 and the gear 13 are engaged with or disengaged from each other.
Referring to fig. 3 or 4, in some embodiments, the mirror tube control knob 11 is provided with a button corresponding to the head end of the support shaft, and the button is sleeved on the head end of the support shaft.
Referring to fig. 3, in some embodiments, when the supporting shaft 12 is pressed, the supporting shaft 12 can move axially under the external force pressing, the gear 13 is driven to move axially towards the end of the supporting shaft 12, and the pulling rack 21 and the gear 13 are disengaged from each other. The head end of the support shaft 12 is located at one end of the scope control knob, and the tail end is located at the other end relative to the head end.
Referring to fig. 4, in some embodiments, when the supporting shaft 12 is pressed, the supporting shaft 12 is axially moved under the external force, the supporting shaft 12 is reset, the gear 13 is driven to move axially toward the head end of the supporting shaft 12, and the pulling rack 21 is engaged with the gear 13.
In other alternative embodiments, the supporting shaft 12 can be pulled to the initial position by pulling, and the supporting shaft 12 is reset to drive the gear 13 to move axially towards the head end of the supporting shaft 12 to engage with the pulling rack 21.
According to the technical idea of the embodiment of the invention, a predetermined trigger condition is set to switch the pulling rack 21 and the gear 13 between the engaged state and the disengaged state, so as to separate and lock the main body tube 20 and the internal structural member of the handle 10, thereby achieving the technical purpose of easily replacing the main body tube 20.
The nasopharyngoscope provided by the embodiment of the invention is characterized in that the structure of the handle 10 component of the nasopharyngoscope is improved, and the structure specifically comprises the following components: a mirror tube control knob 11 is arranged on the handle 10, the mirror tube control knob 11 is axially connected with a support shaft 12, and a gear 13 is arranged on the support shaft 12; detachably connecting the rear end of a main body tube 20 to the handle 10, wherein the interior of the main body tube 20 is communicated with the hollow part of the handle 10, a pulling rack 21 is axially arranged in the main body tube 20, and the pulling rack 21 is meshed with the gear 13; the posture of the bendable scope 30 can be controlled by the scope control knob 11, for example, by bending the bendable scope 0 to 115 degrees to the dorsal side or the ventral side, so as to perform examination, treatment, and the like of the nose and throat region. Because the main tube 20 and the handle 10 are detachably connected, and the support shaft 12 is axially movable under external pressure, the support shaft 12 is pressed, and the pulling rack 21 and the gear 13 are engaged or disengaged with each other, in this way, when the main tube 20 and the bendable mirror tube 30 at the front end thereof need to be replaced in the using process, only the support shaft 12 needs to be pressed, and the gear 13 axially moves towards the tail end of the support shaft 12, so that the internal pulling rack 21 and the gear 13 can be disengaged, and the main tube 20 can be integrally detached from the handle 10. When the main tube 20 and the bendable endoscope tube 30 at the front end thereof need to be replaced, the rack inside the main tube 20 is inserted into the handle 10, and then the support shaft 12 is pressed, the gear 13 moves axially towards the head end of the support shaft 12, and the gear 13 is engaged with the rack, so that the replacement is completed.
Consequently, this scheme is convenient for realize the separation of 10 subassembly partial structures of handle to make easy to change in the partial structures of nasopharyngoscope part use, help partial structures of nasopharyngoscope part to develop towards disposable medical instrument consumptive material direction technically.
In order to facilitate the switching of the meshing state between the drawing rack 21 and the gear 13, in some embodiments, a shaft seat (not shown) is disposed on the inner wall of the handle 10 corresponding to the supporting shaft 12, a first shaft hole (not shown) is disposed on the shaft seat, a return elastic member (not shown) is disposed in the first shaft hole, and the end of the supporting shaft 12 is disposed in the first shaft hole and abuts against the return elastic member. Thus, after the pressing force is released, the elastic return element returns to extend, and pushes the support shaft 12 to move axially in the opposite direction, so that the gear 13 is automatically engaged with the traction rack 21, and the assembly between the handle 10 and the internal structural component of the main tube 20 is automatically realized.
With reference to fig. 1 to 4, in particular, an opening 14 is formed in a side wall of the handle 10, the scope control knob 11 is disposed in the opening 14, and a position limiting pressing plate 15 is disposed at a position corresponding to the opening 14 and facing the opening 14 of the scope control knob 11, and is used for preventing the scope control knob 11 from floating axially and from being disengaged from the supporting shaft 12. The endoscope control knob 11 is provided with a second shaft hole, the support shaft 12 is clamped with the second shaft hole of the endoscope control knob 11 in the circumferential direction, and the support shaft is movable relative to the second shaft hole in the axial direction; and a third shaft hole is formed in the limiting pressure plate 15 corresponding to the second shaft hole, and the head end of the supporting shaft 12 penetrates through the second shaft hole and extends out of the third shaft hole.
In this embodiment, the supporting shaft 12 is circumferentially clamped with the second shaft hole of the endoscope control knob 11 and is axially movable relative to the second shaft hole, so that when the nasopharyngoscope is operated, the supporting shaft 12 can be driven to rotate circumferentially together by rotating the endoscope control knob 11, and the traction rack 21 is moved relative to the gear 13 on the supporting shaft 12, so as to pull the bendable endoscope 30 to rotate, pitch and the like through the traction piece, thereby adjusting the posture of the bendable endoscope 30.
Further, referring to fig. 3 or 4, a pulling rack limiting rail 22 is disposed in the main tube 20, and the pulling rack 21 is slidably disposed in the pulling rack limiting rail 22. Thus, the motion track of the pulling rack 21 can be limited to ensure the posture control effect of the bendable mirror tube 30.
With continuing reference to fig. 3 or fig. 4, in some embodiments, the pulling rack 21 includes a first pulling rack and a second pulling rack arranged in parallel at an interval, at least a portion of the first pulling rack and at least a portion of the second pulling rack are respectively slidably disposed in the corresponding pulling rack limiting rail 22, and the two pulling racks 21 are arranged in parallel, so that the posture control effect of the bendable mirror tube 30 can be further improved.
A first elastic member (not shown in the figures) is arranged on the toothless side of the part of the first traction rack located outside the traction rack limiting track 22, a second elastic member is arranged on the toothless side of the part of the second traction rack located outside the traction rack limiting track 22, and the first elastic member and the second elastic member are respectively abutted against the inner wall of the handle 10.
In the process of returning the gear 13 to the engagement with the pulling rack 21 by the axial movement, there may occur a phenomenon in which the tooth tips of the gear 13 are opposed to the tooth tips of the pulling rack 21, thereby causing the gear 13 to interfere with the pulling rack 21. In the embodiment of the invention, the elastic parts are respectively arranged on the toothless sides of the first traction rack and the second traction rack, so that the distance between the parts of the first traction rack and the second traction rack outside the limiting track can be adaptively adjusted under the action of the extrusion external force of the gear 13, the technical problem of meshing failure caused by the existing interference phenomenon is solved, and the working reliability of the nasopharyngoscope is improved.
With continued reference to fig. 1 and 2, the rear end of the main tube 20 is snapped into the hollow portion of the handle 10.
Specifically, the lower end of the main tube 20 is provided with a protruding insertion part 23, the inner wall of the handle 10 is provided with a groove surface with a predetermined length in the circumferential direction, and the main tube 20 is inserted into the groove surface through the protruding insertion part 23 and connected with the handle 10.
It can be understood that, for the electronic nasopharyngoscope, cables need to be laid inside the electronic nasopharyngoscope for power supply or data transmission; in addition, the reliability of the connection of the main body tube 20 and the handle 10 needs to be further improved.
In some embodiments, the visual optical element comprises: the convex insertion part 23 of the CMOS camera is provided with a data/power supply interface (not shown in the figure) electrically connected with the CMOS camera, and a through structure is provided on the side wall of the groove surface section of the main tube 20 corresponding to the data interface.
When the data/power supply line passes through the through structure and is plugged into the data/power supply interface, the data/power supply line is at least used for fixing and limiting the main body tube 20 and the handle 10.
In this embodiment, through above-mentioned improvement structure, with power supply/data transmission implementation and the fixed spacing two into one of strengthening between main part pipe 20 and the handle 10, design benefit not only can guarantee the needs of cable power supply or data transmission, can also strengthen the connection reliability of main part pipe 20 and handle 10.
The visible optical element is a prism, a plane mirror group (a light path system formed by combining a plurality of plane mirrors), or a CMOS camera, and is used for observing the condition of the nose and throat parts of the patient in cooperation with an external optical processing system (since the improvement of the embodiment is not the point, the technical characteristics are not described in detail in order to highlight the innovative gist of the present invention).
The bendable mirror tube 30 can be rotated and bent under external traction to change its own posture. The bendable scope 30 includes: the pipe comprises a front pipe section and a rear pipe section, wherein the front pipe section and the rear pipe section respectively comprise an inner hose, a snake-bone-shaped structure body and a rubber layer, the outer circumferential surface of the inner hose is wound with the snake-bone-shaped structure body, and the rubber layer is wrapped on the outer side of the snake-bone-shaped structure body;
the space density between the bone segments of the snake bone-shaped structural body of the front pipe section is smaller than that between the bone segments of the snake bone-shaped structural body of the rear pipe section.
Thus, by providing the front and rear tube sections of the main tube 20 with the rib segments of the serpentine structure having different pitch densities, the rigidity and flexibility of the front and rear tube sections can be made different from each other, so that the rigidity of the front tube section is small relative to the rigidity of the rear tube end, but the flexibility is large, and when the front end of the bendable scope tube 30 is pulled by controlling the pulling rack 21, the front tube section of the main tube 20 is flexible relative to the rear tube section, and is easily pulled and bent, so that the operation is labor-saving.
Among them, the snake bone-like structure is also called "snake bone" because its structure is similar to the bone section of snake. As an alternative embodiment, the length ratio of the front pipe section to the rear pipe section is 1.
In some embodiments, an illumination channel, an instrument channel and a medium injection channel are arranged in the bendable mirror in an axial direction, the illumination channel, the instrument channel and the medium injection channel are respectively positioned around the visual optical element, and the channels are isolated from each other.
The illumination channel can be provided with optical fibers for illumination; the instrument channel may be used to extend other medical instruments, such as tissue clamps, vascular clamps, etc., through the channel. The medium injection channel can be used as a cleaning or anti-inflammatory liquid injection channel, a liquid suction channel in a human body and the like.
According to the disclosure, the nasopharyngoscope provided by the embodiment of the invention is convenient for separating the partial structural part of the handle 10 assembly, so that the partial structural part of the nasopharyngoscope is easy to replace in the use process, the development of the partial structural part of the nasopharyngoscope towards disposable medical instrument consumables is technically facilitated, and after the partial structural part of the nasopharyngoscope is used each time, the main body tube 20 and the bendable endoscope tube 30 can be replaced, so that the risk of cross infection in the examination process of patients can be reduced.
It is noted that, herein, the terms "upper", "lower", and the like, indicate orientations or positional relationships and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. Relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element. As will be appreciated by one of ordinary skill in the art, the situation may be specified.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A disposable nasopharyngoscope comprising: the handle is of a hollow structure, a tube control knob is arranged on the handle, the tube control knob is axially connected with a support shaft, and a gear is arranged on the support shaft;
the rear end of the main body pipe is detachably connected into the hollow part of the handle, the interior of the main body pipe is communicated with the hollow part of the handle, a drawing rack is axially arranged in the main body pipe, and the drawing rack is meshed with the gear;
the rear end of the bendable mirror tube is connected to the front end of the main tube and communicated with the interior of the main tube, and the front end of the bendable mirror tube is provided with a visible optical element;
the traction piece is arranged at the front end of the traction rack, and the free end of the traction piece is penetrated and connected to the inner wall of the bendable mirror tube;
the supporting shaft can move axially under external force pressing, the supporting shaft is pressed, and the traction rack and the gear are meshed or separated with each other.
2. A nasopharyngoscope according to claim 1, wherein the handle has a shaft seat on an inner wall thereof corresponding to the supporting shaft, the shaft seat has a first shaft hole, a restoring elastic member is disposed in the first shaft hole, and the end of the supporting shaft is disposed in the first shaft hole and abuts against the restoring elastic member.
3. A nasopharyngoscope according to claim 1, wherein the sidewall of the handle is provided with an opening, the scope control knob is provided in the opening, a limit pressure plate is provided at a position corresponding to the opening and in a direction toward the opening of the scope control knob, the scope control knob is provided with a second shaft hole, the support shaft is circumferentially clamped with the second shaft hole of the scope control knob and is movable relative to the second shaft hole in an axial direction;
and a third shaft hole is formed in the limiting pressure plate corresponding to the second shaft hole, and the head end of the supporting shaft penetrates through the second shaft hole and extends out of the third shaft hole.
4. A nasopharyngoscope according to claim 1, wherein a pulling rack limiting track is provided in the main tube, and the pulling rack is slidably provided in the pulling rack limiting track.
5. The nasopharyngoscope according to claim 4, wherein the traction rack comprises a first traction rack and a second traction rack which are arranged in parallel at intervals, at least part of the first traction rack and at least part of the second traction rack are respectively slidably arranged in corresponding traction rack limiting rails, a first elastic member is arranged on a toothless side of the part of the first traction rack outside the traction rack limiting rails, a second elastic member is arranged on a toothless side of the part of the second traction rack outside the traction rack limiting rails, and the first elastic member and the second elastic member respectively abut against the inner wall of the handle.
6. A nasopharyngoscope according to claim 4, wherein the rear end of the main body tube snaps into the hollow of the handle.
7. A nasopharyngoscope according to claim 6, wherein the main body tube is provided at a lower end thereof with a protruding insertion part, the inner wall of the handle is provided with a groove surface of a predetermined length in a circumferential direction, and the main body tube is inserted into the groove surface through the protruding insertion part and connected to the handle.
8. A nasopharyngoscope according to claim 7, wherein the visual optical element comprises: the convex insertion part is provided with a data/power supply interface electrically connected with the CMOS camera, and a through structure is arranged on the side wall of the groove surface section of the main body tube and corresponds to the data interface;
when the data/power supply line passes through the through structure and is inserted into the data/power supply interface, the data/power supply line is at least used for fixing and limiting the main pipe and the handle.
9. A nasopharyngoscope according to claim 8, wherein the visual optical element is a prism, a planar mirror group, or a CMOS camera.
10. A nasopharyngoscope according to claim 1, wherein the bendable scope comprises: the pipe comprises a front pipe section and a rear pipe section, wherein the front pipe section and the rear pipe section respectively comprise an inner hose, a snake-bone-shaped structure body and a rubber skin layer, the outer circumferential surface of the inner hose is wound with the snake-bone-shaped structure body, and the rubber skin layer is wrapped on the outer side of the snake-bone-shaped structure body;
the space density between the bone segments of the snake bone-shaped structural body of the front pipe section is smaller than that between the bone segments of the snake bone-shaped structural body of the rear pipe section.
CN202211222132.XA 2022-10-08 2022-10-08 Disposable nasopharynx laryngoscope Active CN115553698B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211222132.XA CN115553698B (en) 2022-10-08 2022-10-08 Disposable nasopharynx laryngoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211222132.XA CN115553698B (en) 2022-10-08 2022-10-08 Disposable nasopharynx laryngoscope

Publications (2)

Publication Number Publication Date
CN115553698A true CN115553698A (en) 2023-01-03
CN115553698B CN115553698B (en) 2024-03-19

Family

ID=84744850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211222132.XA Active CN115553698B (en) 2022-10-08 2022-10-08 Disposable nasopharynx laryngoscope

Country Status (1)

Country Link
CN (1) CN115553698B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101940464A (en) * 2010-08-16 2011-01-12 杭州好克光电仪器有限公司 Portable electronic nasopharyngolarygnoscope
CN110353612A (en) * 2019-07-16 2019-10-22 深圳市先赞科技有限公司 Disposal type endoscope and its handle
KR20200114766A (en) * 2019-03-29 2020-10-07 (주)가주테크놀로지 Disposable endoscopic structure for preventing cross infection
US20210361143A1 (en) * 2018-11-01 2021-11-25 Hotwire Medical Tech. Development Co., Ltd. Insertion part of electronic endoscope and electronic endoscope
CN114532945A (en) * 2022-02-23 2022-05-27 杭州思康新医疗科技有限公司 Handle for endoscope and endoscope
CN219166357U (en) * 2022-10-08 2023-06-13 首都医科大学附属北京儿童医院 Disposable nasopharynx laryngoscope

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101940464A (en) * 2010-08-16 2011-01-12 杭州好克光电仪器有限公司 Portable electronic nasopharyngolarygnoscope
US20210361143A1 (en) * 2018-11-01 2021-11-25 Hotwire Medical Tech. Development Co., Ltd. Insertion part of electronic endoscope and electronic endoscope
KR20200114766A (en) * 2019-03-29 2020-10-07 (주)가주테크놀로지 Disposable endoscopic structure for preventing cross infection
CN110353612A (en) * 2019-07-16 2019-10-22 深圳市先赞科技有限公司 Disposal type endoscope and its handle
CN114532945A (en) * 2022-02-23 2022-05-27 杭州思康新医疗科技有限公司 Handle for endoscope and endoscope
CN219166357U (en) * 2022-10-08 2023-06-13 首都医科大学附属北京儿童医院 Disposable nasopharynx laryngoscope

Also Published As

Publication number Publication date
CN115553698B (en) 2024-03-19

Similar Documents

Publication Publication Date Title
CN219166357U (en) Disposable nasopharynx laryngoscope
JP3811291B2 (en) Endoscope system
JP5945655B1 (en) Transmission mechanism, raising device and insertion device
JP4354485B2 (en) Insertion device
JP4922618B2 (en) Endoscope and endoscope system
JP4163438B2 (en) Endoscope
JP2015107324A (en) Needle biopsy device
EP3818921B1 (en) Endoscope
WO2012014656A1 (en) Rigid scope
JP2007185379A (en) Rotary self-propelled endoscope
JP2012192080A (en) Endoscopic device
US20090030277A1 (en) Endoscope Insertion Portion and Endoscope System
JP2006334246A (en) Endoscope apparatus
US11857162B2 (en) Endoscope
CN114343544A (en) Endoscope with movable front end
US20090023994A1 (en) Endoscope Insertion Portion and Endoscope
JPH07155283A (en) Cover-type endoscope
US20100063357A1 (en) Endoscope insertion aid, endoscope apparatus and endoscope apparatus insertion method
JP4875364B2 (en) Rotating self-propelled endoscope
CN115553698A (en) Disposable nasopharyngoscope
JPH10127567A (en) Endoscope
CN110799082B (en) Endoscope with a detachable handle
CN111000617A (en) Calculus removing device special for residual bile duct calculus after ERCP (percutaneous transluminal coronary angioplasty) operation
JP4454888B2 (en) Endoscope device
JP2007185393A (en) Endoscope insertion part with case

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant