CN109316157A - A kind of two-way snake bone and endoscope of unilateral driving - Google Patents

A kind of two-way snake bone and endoscope of unilateral driving Download PDF

Info

Publication number
CN109316157A
CN109316157A CN201811184624.8A CN201811184624A CN109316157A CN 109316157 A CN109316157 A CN 109316157A CN 201811184624 A CN201811184624 A CN 201811184624A CN 109316157 A CN109316157 A CN 109316157A
Authority
CN
China
Prior art keywords
snake bone
optical member
way
main body
elastic supporting
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
CN201811184624.8A
Other languages
Chinese (zh)
Inventor
张俊俊
辜嘉
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.)
Suzhou Zhongke Advanced Technology Research Institute Co Ltd
Original Assignee
Suzhou Zhongke Advanced Technology Research Institute Co Ltd
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 Suzhou Zhongke Advanced Technology Research Institute Co Ltd filed Critical Suzhou Zhongke Advanced Technology Research Institute Co Ltd
Priority to CN201811184624.8A priority Critical patent/CN109316157A/en
Publication of CN109316157A publication Critical patent/CN109316157A/en
Pending legal-status Critical Current

Links

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
    • A61B1/005Flexible endoscopes
    • A61B1/0051Flexible endoscopes with controlled bending of insertion part
    • A61B1/0055Constructional details of insertion parts, e.g. vertebral elements
    • 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
    • A61B1/00112Connection or coupling means
    • A61B1/00121Connectors, fasteners and adapters, e.g. on the endoscope handle
    • A61B1/00128Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
    • 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
    • A61B1/005Flexible endoscopes
    • A61B1/0051Flexible endoscopes with controlled bending of insertion part
    • A61B1/0057Constructional details of force transmission elements, e.g. control wires

Landscapes

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

Abstract

The present invention relates to a kind of two-way snake bone of unilateral driving, including snake bone main body, the snake bone main body includes elastic supporting member for supporting optical member and multiple joints, and the elastic supporting member for supporting optical member forms arc to curving, and multiple joints are sequentially arranged in the extrados of the elastic supporting member for supporting optical member;Tractive unit, the tractive unit run through the snake bone main body, and the opposite direction for drawing the snake bone main body towards the elastic supporting member for supporting optical member bending direction carries out bending motion.The invention further relates to a kind of endoscope, the endoscope includes the two-way snake bone.Implement of the invention a kind of two-way snake bone and endoscope, the diameter of two-way snake bone and curved part of endoscope can be effectively reduced.

Description

A kind of two-way snake bone and endoscope of unilateral driving
Technical field
The present invention relates to endoscopic technique field, in particular to a kind of two-way snake bone of unilateral driving.
Background technique
Endoscope is the common medical instrument of modern medicine comprising, can for being inserted directly into the insertion section of inside of human body Random curved bending section, and the control end for manual control operation handle, wherein bending section is internally provided with snake Bone, the bending of snake bone can be realized by controlling end by manual operation, and then realize the bending of bending section.
The endoscope of smaller diameter and bending radius is had increasing need in the diagnosis and treatment process of modern medicine, namely is needed more The snake bone of minor diameter and bending radius, and existing two-way snake bone be arranged generally inside snake bone the wirerope of two tractions with And two column place wirerope traction channel, by control end drawing connect with snake bone two wirerope realization two, snake bone The bending in direction, but this necessarily to will cause snake bone inner space crowded narrow, be unfavorable for the reduction of snake bone diameter, while also unfavorable In the arrangement work of the pipelines such as snake bone internal cable line, light beam, water air pipe and pincers deferent.
Summary of the invention
In view of the above problems in the prior art, the purpose of the present invention is to provide a kind of two-way snake bone of unilateral driving, lead to Crossing a piece draught line of setting can be realized the compound bending of snake bone, can reduce the diameter of snake bone, thus in farthest reducing The diameter of sight glass bending section.
First aspect present invention provides a kind of two-way snake bone of unilateral driving, including snake bone main body, the snake bone main body packet Elastic supporting member for supporting optical member and multiple joints are included, the elastic supporting member for supporting optical member forms arc to curving, and multiple joints are sequentially arranged in The extrados of the elastic supporting member for supporting optical member;Tractive unit, the tractive unit runs through the snake bone main body, for drawing the snake bone main body Bending motion is carried out towards the opposite direction of the elastic supporting member for supporting optical member bending direction.
Further, the elastic supporting member for supporting optical member is made by the thermally treated technique of elastic metallic material.
Further, the elastic metallic material is stainless steel material or titanium alloy metal material.
Further, the tractive unit includes: traction channel, and there are multiple, multiple traction channels in the traction channel It is sequentially arranged at the inner surface of the multiple joints opposite with the elastic supporting member for supporting optical member;Draught line, the draught line are located at described It draws in channel, the front end of the snake bone main body is fixed in the traction line front end, and the snake is extended in the traction line back end The rear end of bone main body.
Further, multiple joints are equidistantly set to the extrados of the elastic supporting member for supporting optical member.
Further, the joint is the cyclic structure of asymmetrical design, the bone for the side that is connected with the elastic supporting member for supporting optical member Byte wide is greater than the joint width with the elastic supporting member for supporting optical member opposite side.
Optionally, each joint is spiral shape, and multiple spiral joints are at the elastic supporting member for supporting optical member It is end to end.
Further, the joint and the elastic supporting member for supporting optical member are integrally formed.
The present invention also provides a kind of endoscopes, including a kind of two-way snake bone of unilateral driving described in any of the above embodiments.
Due to above-mentioned technical proposal, the invention has the following beneficial effects:
Two-way snake bone of the invention can be realized compound bending by a draught line, reduce the diameter of two-way snake bone, Facilitate the winding displacement work inside two-way snake bone.
Endoscope of the invention, the two-way snake bone configured with above-mentioned unilateral driving, it is curved can farthest to reduce endoscope The diameter of pars convoluta.
Detailed description of the invention
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical solution of the present invention The attached drawing used is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, it is right For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Its attached drawing.
Fig. 1 is structure when a kind of unilateral two-way snake bone driven that the embodiment of the present invention one provides is in non-stress Schematic diagram;
Fig. 2 is another when a kind of two-way snake bone for unilateral driving that the embodiment of the present invention one provides is in non-stress The structural schematic diagram of angle;
Fig. 3 is knot when a kind of unilateral two-way snake bone driven that the embodiment of the present invention one provides is in smaller stress Structure schematic diagram;
Fig. 4 is knot when a kind of unilateral two-way snake bone driven that the embodiment of the present invention one provides is in larger stress Structure schematic diagram.
In attached drawing:
1- elastic supporting member for supporting optical member 2- joint 3- draws channel
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work It encloses.
It should be noted that term " first ", " second " etc. in description and claims of this specification and attached drawing It is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that the number used in this way According to being interchangeable under appropriate circumstances, so that the embodiment of the present invention described herein can be in addition to illustrating herein or describing Those of other than sequence implement.In addition, term " includes " and " having " and their any deformation, it is intended that covering is not Exclusive includes.
Embodiment one
Referring to attached drawing 1 and attached drawing 2, for a kind of two-way snake bone for unilateral driving that the embodiment of the present invention one provides, including snake Bone main body and tractive unit, the snake bone main body include elastic supporting member for supporting optical member 1 and multiple joints 2, and the elastic supporting member for supporting optical member 1 is to a lateral bending Curved camber, multiple joints 2 are sequentially arranged in the extrados of the elastic supporting member for supporting optical member 1, and the tractive unit runs through the snake Bone main body, the opposite direction for drawing the snake bone main body towards 1 bending direction of elastic supporting member for supporting optical member carry out bending motion.
In some possible embodiments, the elastic supporting member for supporting optical member 1 is by elastic metallic material such as stainless steel material or titanium Alloy metal material composition, the elastic metallic material pass through tool holder first and are fixed into arc to certain curving, then Permanent bend camber and the elastic supporting member for supporting optical member 1 with certain screen resilience are made after thermally treated process.
In some possible embodiments, the joint 2 is integrally formed with the elastic supporting member for supporting optical member 1, for example, the bone Section 2 is integrally formed with the elastic supporting member for supporting optical member 1 by Shooting Technique, then obtains joint 2 by heat treatment process and elasticity is propped up The integrally formed snake bone main body of support member 1, spacing is equal between joint 2 described in every two, and multiple joints 2 are not right Claim the cyclic structure of design, 2 width of joint for the side that is connected with the elastic supporting member for supporting optical member 1 is greater than and 1 phase of elastic supporting member for supporting optical member To 2 width of joint of side, for guaranteeing that the snake bone main body can be towards the phase of the bending direction of elastic supporting member for supporting optical member 1 itself Opposite direction carries out maximum bending motion.
In some possible embodiments, the tractive unit includes drawing channel 3 and draught line (not shown), described to lead Drawing channel 3 has multiple, respectively corresponds multiple joints 2 and is arranged one by one, multiple traction channels 3 are sequentially arranged at and the bullet The inner surface of the property opposite multiple joints 2 of supporting element 1.The traction channel 3 passes through Shooting Technique with the snake bone main body It is integrally formed, optionally, the traction channel 3 can also be successively set on the multiple bones opposite with the elastic supporting member for supporting optical member 1 The inside of section 2, i.e., the described traction channel 3 is the column through-hole being arranged in inside multiple joints 2.The draught line is located at every In a traction channel 3, the front end of the snake bone main body is fixed in the traction line front end, and the traction line back end is extended The traction channel 3 of the snake bone body rear, for draw the snake bone towards bending direction itself opposite direction into Row bending motion, it is preferable that the draught line is wirerope.
Accordingly, as shown in Figure 1 and Figure 2, in the case where not pulling draught line, the two-way snake bone is to curving Arc is formed, when pulling draught line with certain force, the two-way snake bone is bent to the opposite direction of bending direction itself, such as attached drawing Shown in 3, apply a suitable power, the two-way snake bone supports common in the drawing of draught line and two-way snake bone screen resilience itself Effect is lower to be in upright state, as shown in Fig. 4, when further pulling the draught line, due between the multiple joint 2 The asymmetrical design of gap and joint 2, the two-way snake influential point of bone are further bent to the opposite direction of bending direction itself, directly Closely to the relatively narrow side of multiple joints 2, at this point, reaching two-way snake bone in the maximum flexion of the direction.
When the two-way snake bone needs to carry out bending motion to itself bending direction, it is only necessary to gradually unclamp traction Line, the two-way snake bone gradually can carry out bending motion to itself bending direction under the action of screen resilience itself, specifically Process and the process of drawing draught line are on the contrary, details are not described herein again.
Embodiment two
Second embodiment of the present invention provides the two-way snake bone of another unilateral driving, including snake bone main body and tractive unit, institutes Stating snake bone main body includes elastic supporting member for supporting optical member and multiple joints, and the elastic supporting member for supporting optical member forms arc to curving, multiple described Joint is sequentially arranged in the extrados of the elastic supporting member for supporting optical member, and the tractive unit runs through the snake bone main body, for drawing the snake The opposite direction of bone main body towards the elastic supporting member for supporting optical member bending direction carries out bending motion.
In some possible embodiments, the elastic supporting member for supporting optical member is closed by elastic metallic material such as stainless steel material or titanium Golden metal material composition, the elastic metallic material pass through tool holder first and are fixed into arc to certain curving, then pass through Permanent bend camber and the elastic supporting member for supporting optical member with certain screen resilience are made after heat treatment process processing.
In some possible embodiments, the joint and the elastic supporting member for supporting optical member are integrally formed, for example, the joint It is integrally formed with the elastic supporting member for supporting optical member by Shooting Technique, joint and elastic supporting member for supporting optical member one is then obtained by heat treatment process The body formed snake bone main body, the spacing between joint described in every two is equal, and each joint is spiral shape, multiple The spiral joint is end to end at the elastic supporting member for supporting optical member, forms the structure for being similar to helix tube.
In some possible embodiments, the tractive unit includes that traction channel and draught line, the traction channel have It is multiple, it respectively corresponds multiple joints and is arranged one by one, multiple traction channels are sequentially arranged at and the elastic supporting member for supporting optical member phase Pair multiple joints inner surface.The traction channel and the snake bone main body are integrally formed by Shooting Technique, optional , the traction channel can also be successively set on the inside of the multiple joints opposite with the elastic supporting member for supporting optical member, i.e., described Drawing channel is the column through-hole being arranged in inside multiple joints.The draught line is located in each traction channel, The front end of the snake bone main body is fixed in the traction line front end, and the snake bone body rear is extended in the traction line back end The traction channel, the opposite direction for drawing the snake bone towards bending direction itself carry out bending motion, it is preferable that institute Stating draught line is wirerope.
Two-way snake bone described in the present embodiment, operating method is similar with embodiment one, and details are not described herein again.
Embodiment three
The embodiment of the present invention three provides a kind of endoscope, and the endoscope includes bending section and controls end, described curved The two-way snake bone provided inside pars convoluta configured with embodiment one or embodiment two, the draught line are connected with the control end, It, specifically can be with when the compound bending of the bending section can be realized by control end drawing and the release draught line Refering to the description of above-described embodiment, details are not described herein again.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art, Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention. Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (9)

1. a kind of two-way snake bone of unilateral driving characterized by comprising
Snake bone main body, the snake bone main body include elastic supporting member for supporting optical member (1) and multiple joints (2), and the elastic supporting member for supporting optical member (1) is to one Lateral bend forms arc, and multiple joints (2) are sequentially arranged in the extrados of the elastic supporting member for supporting optical member (1);
Tractive unit, the tractive unit runs through the snake bone main body, for drawing the snake bone main body towards the elastic supporting member for supporting optical member (1) opposite direction of bending direction carries out bending motion.
2. a kind of two-way snake bone of unilateral driving according to claim 1, which is characterized in that the elastic supporting member for supporting optical member (1) It is made by the thermally treated technique of elastic metallic material.
3. a kind of two-way snake bone of unilateral driving according to claim 2, which is characterized in that the elastic metallic material is Stainless steel material or titanium alloy metal material.
4. a kind of two-way snake bone of unilateral driving according to claim 1, which is characterized in that the tractive unit includes:
It draws channel (3), the traction channel (3) has multiple, and multiple traction channels (3) are sequentially arranged at and the elastic branch The inner surface of the opposite multiple joints (2) of support member (1);
Draught line, the draught line are located in the traction channel (3), and the snake bone main body is fixed in the traction line front end The rear end of the snake bone main body is extended in front end, the traction line back end.
5. a kind of two-way snake bone of unilateral driving according to claim 1, which is characterized in that multiple described joints (2) etc. Spacing is set to the extrados of the elastic supporting member for supporting optical member (1).
6. a kind of two-way snake bone of unilateral driving according to claim 1, which is characterized in that the joint (2) is not right Claim the cyclic structure of design, joint (2) width for the side that is connected with the elastic supporting member for supporting optical member (1) is greater than and the elastic supporting member for supporting optical member (1) joint (2) width of opposite side.
7. a kind of two-way snake bone of unilateral driving according to claim 1, which is characterized in that each joint is spiral shell Shape is revolved, multiple spiral joints are end to end at the elastic supporting member for supporting optical member.
8. a kind of two-way snake bone of unilateral driving according to claim 1, which is characterized in that the joint (2) with it is described Elastic supporting member for supporting optical member (1) is integrally formed.
9. a kind of endoscope, which is characterized in that including a kind of described in any item two-way snakes of unilateral driving of such as claim 1-8 Bone.
CN201811184624.8A 2018-10-11 2018-10-11 A kind of two-way snake bone and endoscope of unilateral driving Pending CN109316157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811184624.8A CN109316157A (en) 2018-10-11 2018-10-11 A kind of two-way snake bone and endoscope of unilateral driving

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811184624.8A CN109316157A (en) 2018-10-11 2018-10-11 A kind of two-way snake bone and endoscope of unilateral driving

Publications (1)

Publication Number Publication Date
CN109316157A true CN109316157A (en) 2019-02-12

Family

ID=65261348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811184624.8A Pending CN109316157A (en) 2018-10-11 2018-10-11 A kind of two-way snake bone and endoscope of unilateral driving

Country Status (1)

Country Link
CN (1) CN109316157A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110811490A (en) * 2019-11-19 2020-02-21 武汉佑康科技有限公司 Directional elastic deflection structure of flexible catheter of endoscope
CN111714068A (en) * 2020-07-24 2020-09-29 湖南省华芯医疗器械有限公司 Snake bone assembly capable of preventing radial falling and endoscope
CN113827169A (en) * 2021-09-23 2021-12-24 湖南省华芯医疗器械有限公司 Snake bone unit, snake bone assembly, insertion part, endoscope and connecting method
CN115153391A (en) * 2022-07-13 2022-10-11 广州奥立医疗设备有限公司 Snake bone with integrated active reduction function

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004298446A (en) * 2003-03-31 2004-10-28 Fuji Photo Optical Co Ltd Endoscope
WO2008060075A1 (en) * 2006-11-13 2008-05-22 Acts Vision Co., Ltd The combined curve-hole for endoscope
CN201894627U (en) * 2010-10-26 2011-07-13 合肥华信电动科技发展有限公司 Snake-bone structure capable of freely rotating
JP2014083284A (en) * 2012-10-25 2014-05-12 Fujitec Co Ltd Endoscope insertion portion and method for manufacturing the same
CN105078398A (en) * 2015-07-01 2015-11-25 深圳市鹏瑞智能技术应用研究院 Unit section, snake-bone-shaped pipe and endoscope
CN206295342U (en) * 2016-08-26 2017-07-04 谢超 Sight glass disposable plastic split snake bone
CN206729858U (en) * 2016-12-09 2017-12-12 深圳市先赞科技有限公司 Double-screw type bending tubular construction on endoscope
CN210408351U (en) * 2018-10-11 2020-04-28 苏州中科先进技术研究院有限公司 Unilateral-driven bidirectional snake bone and endoscope

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004298446A (en) * 2003-03-31 2004-10-28 Fuji Photo Optical Co Ltd Endoscope
WO2008060075A1 (en) * 2006-11-13 2008-05-22 Acts Vision Co., Ltd The combined curve-hole for endoscope
CN201894627U (en) * 2010-10-26 2011-07-13 合肥华信电动科技发展有限公司 Snake-bone structure capable of freely rotating
JP2014083284A (en) * 2012-10-25 2014-05-12 Fujitec Co Ltd Endoscope insertion portion and method for manufacturing the same
CN105078398A (en) * 2015-07-01 2015-11-25 深圳市鹏瑞智能技术应用研究院 Unit section, snake-bone-shaped pipe and endoscope
CN206295342U (en) * 2016-08-26 2017-07-04 谢超 Sight glass disposable plastic split snake bone
CN206729858U (en) * 2016-12-09 2017-12-12 深圳市先赞科技有限公司 Double-screw type bending tubular construction on endoscope
CN210408351U (en) * 2018-10-11 2020-04-28 苏州中科先进技术研究院有限公司 Unilateral-driven bidirectional snake bone and endoscope

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110811490A (en) * 2019-11-19 2020-02-21 武汉佑康科技有限公司 Directional elastic deflection structure of flexible catheter of endoscope
CN110811490B (en) * 2019-11-19 2022-03-15 武汉佑康科技有限公司 Directional elastic deflection structure of flexible catheter of endoscope
CN111714068A (en) * 2020-07-24 2020-09-29 湖南省华芯医疗器械有限公司 Snake bone assembly capable of preventing radial falling and endoscope
CN113827169A (en) * 2021-09-23 2021-12-24 湖南省华芯医疗器械有限公司 Snake bone unit, snake bone assembly, insertion part, endoscope and connecting method
CN113827169B (en) * 2021-09-23 2022-08-02 湖南省华芯医疗器械有限公司 Snake bone unit, snake bone assembly, insertion part, endoscope and connecting method
WO2023045123A1 (en) * 2021-09-23 2023-03-30 湖南省华芯医疗器械有限公司 Serpentine unit, serpentine assembly, insertion portion, endoscope, and connection method
CN115153391A (en) * 2022-07-13 2022-10-11 广州奥立医疗设备有限公司 Snake bone with integrated active reduction function

Similar Documents

Publication Publication Date Title
CN109316157A (en) A kind of two-way snake bone and endoscope of unilateral driving
CN108309207B (en) Bidirectional bending-adjusting endoscope
JP4785752B2 (en) Precision work or surgical instruments
US4742817A (en) Endoscopic apparatus having a bendable insertion section
US20160287054A1 (en) Endoscope
CN109330545A (en) A kind of the four-way snake bone and endoscope of bilateral driving
CN101061942B (en) Medical cannula and medical cannula system
CN105358038A (en) Endoscope curved tube
CN101115432A (en) Flexible tube for endoscope, and endoscope device
JP2007252448A (en) Insertion portion for endoscope
JP6180679B2 (en) Endoscope
CN107233656A (en) Nasal sinus balloon catheter system
CN210043968U (en) Bilateral-driven four-way snake bone and endoscope
CN215993901U (en) Snake bone unit, snake bone assembly, insertion part and endoscope
CN211408972U (en) Endoscope bending part
JP2007054400A (en) Endoscope
CN210408351U (en) Unilateral-driven bidirectional snake bone and endoscope
CN214017643U (en) Rod body for operation and operation tool
CN107802229A (en) A kind of swan-neck of endoscope
CN211066511U (en) Flexible soft fetus mirror
CN204542295U (en) Band guiding hair style stone extraction basket
JP4777005B2 (en) Endoscope
CN209404878U (en) A kind of lifting arm
CN211658095U (en) Endoscope bending part and endoscope
CN211834302U (en) Endoscope bending part and endoscope

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