CN110115556A - Endoscope and endoscopic system - Google Patents

Endoscope and endoscopic system Download PDF

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Publication number
CN110115556A
CN110115556A CN201810116739.7A CN201810116739A CN110115556A CN 110115556 A CN110115556 A CN 110115556A CN 201810116739 A CN201810116739 A CN 201810116739A CN 110115556 A CN110115556 A CN 110115556A
Authority
CN
China
Prior art keywords
channel
endoscope
main body
mirror body
hand
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.)
Pending
Application number
CN201810116739.7A
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Chinese (zh)
Inventor
宋言峥
宋雪敏
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.)
Shanghai Vatican Kun Medical Instrument Ltd Co
Original Assignee
Shanghai Vatican Kun Medical Instrument Ltd Co
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 Shanghai Vatican Kun Medical Instrument Ltd Co filed Critical Shanghai Vatican Kun Medical Instrument Ltd Co
Priority to CN201810116739.7A priority Critical patent/CN110115556A/en
Publication of CN110115556A publication Critical patent/CN110115556A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00002Operational features of endoscopes
    • A61B1/00011Operational features of endoscopes characterised by signal transmission
    • A61B1/00016Operational features of endoscopes characterised by signal transmission using wireless means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00002Operational features of endoscopes
    • A61B1/00043Operational features of endoscopes provided with output arrangements
    • A61B1/00045Display arrangement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00064Constructional details of the endoscope body
    • A61B1/00066Proximal part of endoscope body, e.g. handles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/012Instruments 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/04Instruments 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/06Instruments 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
    • A61B1/0661Endoscope light sources
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/06Instruments 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
    • A61B1/0661Endoscope light sources
    • A61B1/0669Endoscope light sources at proximal end of an endoscope

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Endoscopes (AREA)

Abstract

It includes main body and hand-held support that the present invention, which discloses a kind of endoscope and endoscopic system, the endoscope,;Hand-held support connects wherein one end of main body, and battery unit is arranged in hand-held support;Instrument channel, light source channel and camera lens channel are offered in main body respectively;The lighting unit being electrically connected with battery unit is provided in light source channel;The object lens mirror body being detachably connected with the inner wall in camera lens channel is provided in camera lens channel, object lens mirror body is connected with photoelectric sensor;One end away from hand-held support of main body is separately provided for the eyeglass in enclosed light source channel and camera lens channel;Instrument channel is for passing through movable detecting apparatus;Interface unit is additionally provided in main body, photoelectric sensor is connect by interface unit with intelligent display terminal signal.Technical solution of the present invention aims to solve the problem that the existing drawback that the device is complicated, inconvenient to use of existing endoscope.

Description

Endoscope and endoscopic system
Technical field
The present invention relates to endoscopic technique field more particularly to a kind of endoscope and use the endoscope system of the endoscope System.
Background technique
Endoscope is a kind of medical instrument for being widely used in surgical operation and regular medication inspection, for observing patient's Focus characteristic optimal therapeutic scheme in order to which doctor obtains.The complete equipment of endoscope is related to multiple assembly, and condition is simple and crude Battlefield hospital is inconvenient to provide power supply, and introduction endoscope complete equipment is also immature for the condition that patient is checked, and even if Be in the general hospital for possessing endoscope complete equipment, doctor make the rounds of the wards check when, can not arbitrarily move endoscope the whole series and set It is standby to be checked for patient, it is unfavorable for the treatment to patient.
Above-mentioned technical proposal there are the drawbacks of be that existing endoscope has the shortcomings that the device is complicated, inconvenient to use.
Summary of the invention
The main object of the present invention is to provide a kind of endoscope, it is intended to which solving endoscope, existing the device is complicated, using not Convenient drawback.
To achieve the above object, endoscope proposed by the present invention includes main body and hand-held support;The hand-held support connection Wherein one end of the main body, and battery unit is set in the hand-held support;Offered respectively in the main body instrument channel, Light source channel and camera lens channel, the instrument channel, the light source channel and the camera lens channel are respectively along the length of the main body Degree direction penetrates through the both ends of the main body;The lighting unit being electrically connected with the battery unit is provided in the light source channel; The object lens mirror body being detachably connected with the inner wall in the camera lens channel, the object lens mirror body connection are provided in the camera lens channel There is photoelectric sensor;One end away from the hand-held support of the main body be separately provided for closing the light source channel and The eyeglass in the camera lens channel;The instrument channel is for passing through movable detecting apparatus;Interface unit, institute are additionally provided in the main body Photoelectric sensor is stated to connect by the interface unit with intelligent display terminal signal.
Preferably, the object lens mirror body connect or snaps connection with the inner thread in the camera lens channel.
Preferably, the object lens mirror body is thoracic cavity mirror body, abdominal cavity mirror body, uterine cavity mirror body, joint mirror body, ear canal mirror body, mouth Any one of hysteroscope body and throat mirror body.
Preferably, the main body is detachably connected with the hand-held support.
Preferably, the light source channel is at least two, and each light source channel is set around the camera lens channel.
Preferably, the focus adjustment knob of the object lens mirror body is provided in the main body.
Preferably, shoot button is provided in the hand-held support.
Preferably, the brightness regulation key being electrically connected with the lighting unit is provided in the hand-held support.
To achieve the above object, the present invention also proposes a kind of endoscopic system, including intelligent display terminal and such as above-mentioned Endoscope described in one, the intelligent display terminal are connect with the interface unit signal of the endoscope.
Preferably, the intelligent display terminal is any in mobile phone, laptop, tablet computer and desktop computer Kind.
In technical solution of the present invention, the setting battery unit, the battery in the hand-held support of the endoscope Unit is directly the lighting unit power supply, advantageously reduces electric power connection line and plug;Be provided in the camera lens channel with The object lens mirror body that the inner wall in the camera lens channel is detachably connected, the object lens mirror body can take apart from the main body, Easy to disassemble or replacement variety classes camera lens, to improve the scope of application of endoscope;It is additionally provided with interface unit in the main body, The photoelectric sensor is connect by the interface unit with intelligent display terminal signal, thus, when moving endoscope, do not need Intelligent movable display terminal simultaneously.Therefore, endoscope of the invention advantageously accounts for setting existing for endoscope in the prior art Standby complicated, drawback inconvenient to use.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of endoscope of the present invention;
Fig. 2 is enlarged structure schematic diagram at the A in endoscope shown in FIG. 1.
Drawing reference numeral explanation:
Label Title Label Title
10 Main body 11 Instrument channel
12 Light source channel 13 Lighting unit
14 Camera lens channel 15 Object lens mirror body
16 Photoelectric sensor 17 Eyeglass
18 Interface unit 30 Hand-held support
31 Battery unit 50 Intelligent display terminal
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense, For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral;It can be mechanical connection, be also possible to Electrical connection;It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
It in addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field Based on logical technical staff can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this The combination of technical solution is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of endoscope.
Referring to Fig.1 and 2, to achieve the above object, in an embodiment of the present invention, which includes 10 He of main body Hand-held support 30;The hand-held support 30 connects wherein one end of the main body 10, and battery is arranged in the hand-held support 30 Unit 31;Instrument channel 11, light source channel 12 and camera lens channel 14, the instrument channel are offered in the main body 10 respectively 11, the light source channel 12 and the camera lens channel 14 penetrate through the two of the main body 10 along the length direction of the main body 10 respectively End;The lighting unit 13 being electrically connected with the battery unit 31 is provided in the light source channel 12;In the camera lens channel 14 It is provided with the object lens mirror body 15 being detachably connected with the inner wall in the camera lens channel 14, the object lens mirror body 15 is connected with photoelectric transfer Sensor 16;One end away from the hand-held support 30 of the main body 10 is separately provided for closing 12 He of light source channel The eyeglass 17 in the camera lens channel 14;The instrument channel 11 is for passing through movable detecting apparatus;It is additionally provided with and connects in the main body 10 Mouth unit 18, the photoelectric sensor 16 are connect by the interface unit 18 with 50 signal of intelligent display terminal.The main body 10 can be in the form of a column or other shapes.
Endoscope of the invention is using the design for holding one, and multiple connecting components use design for disassembly, uses With it is easy to carry, movement it is convenient, be also convenient for for all parts being designed to the component of disposable component or Reusability, have It is popularized conducive in In Prefecture-level Hospital, County Hospital and comprehensive national hospital.Simultaneously as its convenience for using, It can be used for emergency treatment, great condition of the injury rescue and the diagnosis of urgent patient's bedside.The intelligent display terminal 50 can be for display function The intelligent mobile terminal of energy or the terminal being arbitrarily fixedly installed can also install control endoscope in intelligent display terminal 50 APP software issues control signal to endoscope when user operates in intelligent display terminal 50, and can receive endoscope acquisition Image, for use as remote medical consultation with specialists and detection.The signal connection can be wired connection or wireless connection, adopt in the present embodiment With wireless connection.
In technical solution of the present invention, the setting battery unit 31, described in the hand-held support 30 of the endoscope Battery unit 31 is directly powered for the lighting unit 13, and electric power connection line and plug are advantageously reduced;The camera lens channel 14 Inside it is provided with the object lens mirror body 15 being detachably connected with the inner wall in the camera lens channel 14, the object lens mirror body 15 can be from described It is taken apart in main body 10, easy to disassemble or replacement variety classes camera lens, to improve the scope of application of endoscope;The main body 10 On be additionally provided with interface unit 18, the photoelectric sensor 16 is connected by the interface unit 18 with 50 signal of intelligent display terminal It connects, thus, when mobile endoscope, do not need while intelligent movable display terminal 50.Therefore, endoscope of the invention is conducive to solve The existing drawback that the device is complicated, inconvenient to use of endoscope certainly in the prior art.
The interface unit 18 can be display interface, in favor of carrying out the image transmitting of shooting to intelligent display terminal 50 Display.
The type of movable detecting apparatus is unlimited, for example, can be biopsy forceps, operating scissors or foreign body forceps.
Preferably, the object lens mirror body 15 connect or snaps connection with the inner thread in the camera lens channel 14.Work as use When snapping connection, hasp can be set on the inner wall in the camera lens channel 14, can be set in object lens mirror body 15 and the hasp The fixed cell of cooperation, the size of fixed cell can according to need increase or diminution, so that the object lens mirror body 15 of different-diameter It can overlap and fix with the hasp.
Preferably, the object lens mirror body 15 be thoracic cavity mirror body, abdominal cavity mirror body, uterine cavity mirror body, joint mirror body, ear canal mirror body, Any one of oral cavity mirror body and throat mirror body.Certainly, the type of object lens mirror body 15 can also be other, be not limited to above-mentioned enumerate Mirror body type.
Preferably, the main body 10 is detachably connected with the hand-held support 30.Main body 10 can be adopted with hand-held support 30 With a variety of detachable connection methods, for example, being threadedly coupled, snapping connection or be bolted, main body 10 can with hand-held support 30 Dismantling connection structure be convenient for object lens mirror body 15 and lighting unit 13 disassembly, be also convenient for by main body 10 or connect with main body 10 its His structure setting is at disposable separate unit.
Preferably, the light source channel 12 is at least two, and each light source channel 12 is set around the camera lens channel 14.For example, six light source channels 12 are distributed in 14 periphery of camera lens channel or two light source channels 12 are respectively arranged at camera lens channel 14 two sides, in order to provide uniform illumination.
Preferably, the focus adjustment knob of the object lens mirror body 15 is provided in the main body 10.
Preferably, shoot button is provided in the hand-held support 30.Shoot button is set to hand-held support 30 convenient for behaviour Make.
Preferably, the brightness regulation key being electrically connected with the lighting unit 13 is provided in the hand-held support 30.It is bright Degree regulating key can control light power.
To achieve the above object, the present invention also proposes a kind of endoscopic system, including intelligent display terminal 50 and as above-mentioned Described in any item endoscopes, the intelligent display terminal 50 are connect with 18 signal of interface unit of the endoscope.Due to this Endoscopic system uses whole technical solutions of above-mentioned all embodiments, therefore at least with the technical solution of above-described embodiment Brought all beneficial effects, this is no longer going to repeat them.
Preferably, the intelligent display terminal 50 is any in mobile phone, laptop, tablet computer and desktop computer Kind.Certainly, the type of intelligent display terminal 50 can also be other, be not limited.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly It is included in other related technical areas in scope of patent protection of the invention.

Claims (10)

1. a kind of endoscope, which is characterized in that the endoscope includes main body and hand-held support;Described in the hand-held support connection Wherein one end of main body, and battery unit is set in the hand-held support;Instrument channel, light source are offered in the main body respectively Channel and camera lens channel, the instrument channel, the light source channel and the camera lens channel are respectively along the length side of the main body To the both ends for penetrating through the main body;The lighting unit being electrically connected with the battery unit is provided in the light source channel;It is described The object lens mirror body being detachably connected with the inner wall in the camera lens channel is provided in camera lens channel, the object lens mirror body is connected with light Electric transducer;One end away from the hand-held support of the main body is separately provided for closing the light source channel and described The eyeglass in camera lens channel;The instrument channel is for passing through movable detecting apparatus;Interface unit, the light are additionally provided in the main body Electric transducer is connect by the interface unit with intelligent display terminal signal.
2. endoscope as described in claim 1, which is characterized in that the inner thread of the object lens mirror body and the camera lens channel It connects or snaps connection.
3. endoscope as described in claim 1, which is characterized in that the object lens mirror body is thoracic cavity mirror body, abdominal cavity mirror body, uterine cavity Any one of mirror body, joint mirror body, ear canal mirror body, oral cavity mirror body and throat mirror body.
4. endoscope as claimed any one in claims 1 to 3, which is characterized in that the main body and the hand-held support can Dismantling connection.
5. endoscope as claimed any one in claims 1 to 3, which is characterized in that the light source channel is at least two, respectively A light source channel is set around the camera lens channel.
6. endoscope as claimed any one in claims 1 to 3, which is characterized in that be provided with the object lens in the main body The focus adjustment knob of mirror body.
7. endoscope as claimed any one in claims 1 to 3, which is characterized in that be provided with and take pictures in the hand-held support Key.
8. endoscope as claimed any one in claims 1 to 3, which is characterized in that be provided in the hand-held support and institute State the brightness regulation key of lighting unit electrical connection.
9. a kind of endoscopic system, which is characterized in that including intelligent display terminal and as described in any one of claims 1 to 8 Endoscope, the intelligent display terminal connect with the interface unit signal of the endoscope.
10. endoscopic system as claimed in claim 9, which is characterized in that the intelligent display terminal is mobile phone, notebook electricity Any one of brain, tablet computer and desktop computer.
CN201810116739.7A 2018-02-06 2018-02-06 Endoscope and endoscopic system Pending CN110115556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810116739.7A CN110115556A (en) 2018-02-06 2018-02-06 Endoscope and endoscopic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810116739.7A CN110115556A (en) 2018-02-06 2018-02-06 Endoscope and endoscopic system

Publications (1)

Publication Number Publication Date
CN110115556A true CN110115556A (en) 2019-08-13

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CN201810116739.7A Pending CN110115556A (en) 2018-02-06 2018-02-06 Endoscope and endoscopic system

Country Status (1)

Country Link
CN (1) CN110115556A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113243885A (en) * 2021-06-16 2021-08-13 上海宇度医学科技股份有限公司 Electronic hysteroscope with adjustable lens angle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102149312A (en) * 2008-09-08 2011-08-10 富士胶片株式会社 Endoscope system, method of using the same, assisting tool and adapter
CN202161653U (en) * 2011-07-04 2012-03-14 广州市第一人民医院 Portable visible trachea cannula introducer
CN103479321A (en) * 2013-09-28 2014-01-01 韦锡波 Multifunctional electronic endoscope for animals
CN104042179A (en) * 2014-07-04 2014-09-17 王刚 Integrated medical endoscope system
CN205597884U (en) * 2016-04-06 2016-09-28 重庆金创谷医疗科技有限公司 Joinable intelligent mobile device's gun type medical endoscope system
CN208640662U (en) * 2018-02-06 2019-03-26 上海梵焜医疗器械有限公司 Endoscope and endoscopic system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102149312A (en) * 2008-09-08 2011-08-10 富士胶片株式会社 Endoscope system, method of using the same, assisting tool and adapter
CN202161653U (en) * 2011-07-04 2012-03-14 广州市第一人民医院 Portable visible trachea cannula introducer
CN103479321A (en) * 2013-09-28 2014-01-01 韦锡波 Multifunctional electronic endoscope for animals
CN104042179A (en) * 2014-07-04 2014-09-17 王刚 Integrated medical endoscope system
CN205597884U (en) * 2016-04-06 2016-09-28 重庆金创谷医疗科技有限公司 Joinable intelligent mobile device's gun type medical endoscope system
CN208640662U (en) * 2018-02-06 2019-03-26 上海梵焜医疗器械有限公司 Endoscope and endoscopic system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113243885A (en) * 2021-06-16 2021-08-13 上海宇度医学科技股份有限公司 Electronic hysteroscope with adjustable lens angle

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