CN109124552A - Soft or hard transformation gastroscope - Google Patents
Soft or hard transformation gastroscope Download PDFInfo
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- CN109124552A CN109124552A CN201810883664.5A CN201810883664A CN109124552A CN 109124552 A CN109124552 A CN 109124552A CN 201810883664 A CN201810883664 A CN 201810883664A CN 109124552 A CN109124552 A CN 109124552A
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- hard transformation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/273—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 upper alimentary canal, e.g. oesophagoscopes, gastroscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00119—Tubes or pipes in or with an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
-
- 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
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—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
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Gastroenterology & Hepatology (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a kind of soft or hard transformation gastroscope, including operation portion, insertion tube is connected on operation portion, insertion tube is equipped with leading end portion far from one end of the operation portion；Soft or hard transformation channel and steel wire channel are equipped in insertion tube；Filling is equipped with magnetorheological fluid in soft or hard transformation channel, and soft or hard transformation channel is externally provided with the magnet exciting coil for generating magnetic field, and operation portion is equipped with the soft or hard transformation button for controlling magnet exciting coil on-off；Operation portion is equipped with the adjusting knob for adjusting direction, leading end portion is equipped with apex steel wire channel, the steel wire channel and the interior apex steel wire channel, which are equipped with, adjusts steel wire, and the one end for adjusting steel wire is fixedly connected with the end of the leading end portion, the other end is connected with the adjusting knob.Soft or hard transformation gastroscope of the invention is, it can be achieved that the soft or hard transformation of insertion tube, i.e., during insertion, insertion tube be it is soft, prevent the injury to patient's esophagus；It was found that insertion tube can be transformed to hard after lesion, to facilitate the movement of control leading end portion.
Description
Technical field
The invention belongs to the field of medical instrument technology, are specifically related to a kind of gastroscope that soft or hard transformation can be achieved.
Background technique
Gastroscope is a kind of medical inspection method, also refers to this utensil for checking and using.Gastrocopy can observe directly
It is examined the truth at position, it more can be by carrying out pathological biopsy and cytolgical examination to suspicious lesions position, with further
It clarifies a diagnosis, is the preferred inspection method of Lesions in Upper Gastrointestinal Tract.It is protruded into stomach by a very thin, soft pipe, doctor
Esophagus, stomach and duodenal lesion can be directly observed, especially to small lesion.Earliest gastroscope is German Ku Simo
You used for reference this More of library pipe of rivers and lakes sword swallowing art invention in 1868, it is exactly a root long metal tube in fact, and end is equipped with mirror.
But it because this gastroscope is easy to poke patient's esophagus, shortly discards.Nineteen fifty, Japanese doctor's space is controlled to be sent out up to Lang Chenggong
Blank --- the gastrophotor of bright soft gastroscope.
Gastrocopy is to utilize the elongate tube of one about one centimeter of diameter of black plastic package optical fibers, front end dress
There is introscope by protruding into esophagus → stomach → duodenum of subject, the strong light issued by light source device, via leaded light in mouth
Fiber can make light turn, and allow doctor that the health status at each position in upper digestive tract is clearly viewed from the other end.
Existing internal diameter is soft gastroscope, although soft gastroscope can effectively prevent poking the injury such as patient's esophagus,
When finding lesion, needs accurately to control leading end portion steering, so that leading end portion is accurately aimed at lesions position, due to existing soft
The entire insertion tube of gastroscope be all it is soft, medical worker is easy to cause entire gastroscope insertion tube equal when adjusting leading end portion direction
Certain bending deformation occurs, interferes the bending direction of leading end portion, the direction of leading end portion is caused to be unable to accurately control, and to medical matters people
The operating experience of member requires very high.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of soft or hard transformation gastroscope, it can be achieved that the soft or hard transformation of insertion tube, i.e.,
During insertion, insertion tube is soft, prevents the injury to patient's esophagus；It was found that insertion tube can be transformed to after lesion
Hard, to facilitate the movement of control leading end portion.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of soft or hard transformation gastroscope, including operation portion are connected with insertion tube on the operation portion, and the insertion tube is separate
One end of the operation portion is equipped with leading end portion；Soft or hard transformation channel and steel wire channel are equipped in the insertion tube；The soft or hard change
It changes filling in channel and is equipped with magnetorheological fluid, the soft or hard transformation channel is externally provided with the magnet exciting coil for generating magnetic field, the behaviour
Make portion equipped with the soft or hard transformation button for controlling magnet exciting coil on-off；The operation portion is equipped with the tune for adjusting direction
Knob is saved, the leading end portion is equipped with apex steel wire channel, and the steel wire channel and the interior apex steel wire channel, which are equipped with, adjusts steel
Silk, described one end for adjusting steel wire is fixedly connected with the end of the leading end portion, the other end is connected with the adjusting knob.
Further, be additionally provided with optical fibers channel and CCD cable passage in the insertion tube, be equipped in the leading end portion with
The apex guide lighting channel that the optical fibers channel is connected and the channel apex CCD with the CCD cable passage, the leaded light
It is equipped with optical fibers in fiber channel and apex guide lighting channel, CCD electricity is equipped in the CCD cable passage and the channel apex CCD
Cable, and the CCD microcam being electrically connected with the CCD cable is additionally provided in the channel the apex CCD, the apex CCD is logical
The end in road is equipped with objective lens.
Further, the operation portion is equipped with connecting line, and the light guide being connected in the connecting line with the optical fiber connects
Fiber is connect, and the connecting line is equipped with the light guide connector for connecting light supply apparatus.
Further, the camera shooting control button for controlling the CCD camera work is additionally provided on the operation portion.
Further, it is additionally provided with aspirated and water sending channel in the insertion tube, is equipped with and the aspirated and water sending in the leading end portion
The nozzle passage that channel is connected, the interior nozzle that the objective lens is directed toward equipped with injection direction of the nozzle passage.
Further, the magnet exciting coil and the soft or hard transformation channel are coaxially disposed.
Further, instrument channel is additionally provided in the insertion tube, the leading end portion is equipped with to be connected with the instrument channel
Instrument channel outlet, the operation portion be equipped with instrument channel opening.
Further, the instrument channel opening upper cover is installed with closed cover.The closed cover is equipped with logical with the instrument
The inner wall of the through-hole that road is connected and the capping for covering on the through-hole, the through-hole is equipped with for preventing gastric juice from falling
The backflow preventing structure of stream.
Further, the backflow preventing structure includes that annular is uniformly arranged the anti-down flow on the through-hole wall, described
Anti-down flow is made of soft material, and the jack coaxial with the through-hole is formed between all anti-down flows 2, described
The internal diameter of jack is less than the outer diameter of instrument insertion tube；It is anti-down described in adjacent two panels and on the axial view direction of the through-hole
It partly overlaps between flow.
Further, soft connecting line is equipped between the capping and the closed cover to be connected.
The beneficial effects of the present invention are:
Soft or hard transformation gastroscope of the invention, by the way that soft or hard transformation channel is arranged in insertion tube, and in soft or hard transformation channel
Interior filling magnetorheological fluid has stable corresponding relationship using shear yield strength of the magnetorheological fluid after rheology and magnetic field strength
Characteristic, when magnet exciting coil is not charged, magnetorheological fluid shows the Newtonian fluid characteristic of low viscosity, i.e., insertion tube at this time is soft
Matter state；After magnet exciting coil electrification, the magnetic field generated makes magnetorheological fluid show the Bingham of high viscosity, low-flow
Bulk properties, i.e., insertion tube at this time are changed into hard state, in this way, using the power on/off and size of current of magnet exciting coil, i.e.,
Can be achieved the soft or hard transformation of insertion tube technical purpose, and insertion tube be hardened after shear yield strength and magnet exciting coil electric current it is big
Small positive correlation, it is easy to control；
To sum up, soft or hard transformation gastroscope of the invention can realize the technical purpose of soft or hard transformation, in down tube, excitation wire at this time
Difference is enclosed, insertion tube is in soft state, can be convenient insertion patient's esophagus, and can prevent as traditional soft gastroscope
Injury to patient's esophagus；When insertion tube finds lesion during insertion or is inserted into expected zone, magnet exciting coil can be made
It is powered, insertion tube is made to be hardened, then pulled using adjusting knob and adjust steel wire, leading end portion bending can be driven, and because of insertion
Pipe has enough hardness, and state of the insertion tube in adjustment process will not change, in this way, i.e. using adjusting knob essence
The really angle direction of control leading end portion, facilitates leading end portion to be directed at lesions position, realizes accurate detection and treatment.
Backflow preventing structure is set by setting closed cover and in the channel of closed cover, using between the anti-down flow of two panels
The structure for dividing overlapping, when the insertion of instrument insertion tube, jack is suitably opened forms certain closing force between instrument insertion tube,
Gastric juice flow backwards when can effectively stop gastric juice outflow instrument channel opening, and anti-down flow only have radially inward end with
Friction is generated between instrument insertion tube, and anti-down flow can reserve enough wear allowances in production, even if making for a long time
With rear, it is also able to maintain the technical purpose of anti-backflow.
In addition, the direction that instrument insertion tube stretches out instrument channel outlet can also accurately control after insertion tube is hardened, and
The problem of will not being deformed such as existing soft insertion tube in insertion instrument insertion tube and leading end portion direction is caused to change,
, it can be achieved that accurate smoothly control when needing biopsy and passing through gastroscope operation.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is the structural schematic diagram of the soft or hard transformation gastroscope embodiment of the present invention；
Fig. 2 is the longitudinal section view of insertion tube；
Fig. 3 is the longitudinal section view of leading end portion；
Fig. 4 is the axial, cross-sectional view of leading end portion；
Fig. 5 is the structural schematic diagram of closed cover.
Description of symbols:
1- operation portion；2- insertion tube；The leading end portion 3-；The soft or hard transformation channel 4-；4a- magnet exciting coil；5- steel wire channel；5a-
Adjust steel wire；The soft or hard transformation button of 6-；7- adjusting knob；8- optical fibers channel；8a- optical fibers；9-CCD cable passage；
9a-CCD cable；9b-CCD microcam；9c- objective lens；10- apex guide lighting channel；The channel 11- apex CCD；12- connection
Line；13- light guide connector；14- images control button；15- aspirated and water sending channel；16- nozzle passage；17- nozzle；18- instrument is logical
Road；The outlet of 19- instrument channel；20- instrument channel opening；21- closed cover；22- through-hole；23- capping；The anti-down flow of 24-；
25- jack；The soft connecting line of 26-；27- aspirated and water sending piston；28- apex steel wire channel.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It better understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, for the structural schematic diagram of the soft or hard transformation gastroscope embodiment of the present invention.The soft or hard transformation stomach of the present embodiment
Mirror, including operation portion 1, insertion tube 2 is connected on operation portion 1, and insertion tube 2 is equipped with leading end portion 3 far from one end of operation portion 1；
Soft or hard transformation channel 4 and steel wire channel 5 are equipped in insertion tube 2；Filling is equipped with magnetorheological fluid, soft or hard change in soft or hard transformation channel 4
It changes channel 4 and is externally provided with magnet exciting coil 4a for generating magnetic field, operation portion 1 is equipped with for controlling the soft of magnet exciting coil 4a on-off
Button 6 is changed in cirrhosis.The magnet exciting coil 4a of the present embodiment and soft or hard transformation channel 4 are coaxially disposed.Operation portion 1 is equipped with for adjusting
The adjusting knob 7 in direction, leading end portion 3 are equipped with apex steel wire channel 28, and steel wire channel 5 and interior apex steel wire channel 28, which are equipped with, to be adjusted
Steel wire 5a, one end of adjusting steel wire 5a is fixedly connected with the end of leading end portion 3, the other end is connected with adjusting knob 7.Leading end portion 3
It is made of soft material, rotation of adjustment knob 7, can make to adjust steel wire 5a shortening or elongation, when adjusting steel wire 5a shortening, utilize
The pulling force driving leading end portion bending for adjusting steel wire 5a utilizes the sprung back of leading end portion itself when adjusting steel wire 5a elongation
Power adjusts the bending direction of leading end portion, and then realizes the adjusting of leading end portion pointing direction.
The soft or hard transformation gastroscope of the present embodiment, by the way that soft or hard transformation channel is arranged in insertion tube, and it is logical in soft or hard transformation
Magnetorheological fluid is filled in road, and there is stable corresponding pass with magnetic field strength using shear yield strength of the magnetorheological fluid after rheology
It is characteristic, when magnet exciting coil is not charged, magnetorheological fluid shows the Newtonian fluid characteristic of low viscosity, i.e., insertion tube at this time is
Soft state；After magnet exciting coil electrification, the magnetic field generated makes magnetorheological fluid show high viscosity, low-flow
Bingham bulk properties, i.e., insertion tube at this time are changed into hard state, in this way, utilizing the power on/off and electric current of magnet exciting coil
Size, can be realized the technical purpose of the soft or hard transformation of insertion tube, and insertion tube be hardened after shear yield strength and magnet exciting coil
Size of current be positively correlated, it is easy to control.
To sum up, the soft or hard transformation gastroscope of the present embodiment can realize the technical purpose of soft or hard transformation, in down tube, excitation at this time
Coil difference, insertion tube are in soft state, can be convenient insertion patient's esophagus, and can be to prevent as traditional soft gastroscope
Only to the injury of patient's esophagus；When insertion tube finds lesion during insertion or is inserted into expected zone, excitation wire can be made
Circle is powered, and insertion tube is made to be hardened, and is then pulled using adjusting knob and adjusts steel wire, and leading end portion bending can be driven, and because inserting
Enter pipe with enough hardness, state of the insertion tube in adjustment process will not change, in this way, i.e. using adjusting knob
The angle direction of accurate control leading end portion, facilitates leading end portion to be directed at lesions position, realizes accurate detection and treatment.
Further, optical fibers channel 8 and CCD cable passage 9 are additionally provided in the insertion tube 2 of the present embodiment, in leading end portion 3
Equipped with the apex guide lighting channel 10 being connected with optical fibers channel 8 and with the channel apex CCD 11 of CCD cable passage 9, it is guide-lighting
It is equipped with optical fibers 8a in fiber channel 8 and apex guide lighting channel 10, is equipped in CCD cable passage 9 and the channel apex CCD 11
CCD cable 9a, and it is logical that CCD the microcam 9b, apex CCD being electrically connected with CCD cable 9a are additionally provided in the channel apex CCD 11
The end in road 11 is equipped with objective lens 9c.The operation portion 1 of the present embodiment is equipped with connecting line 12, in connecting line 12 with optical fiber 8a
Connected light guide connects fiber, and connecting line 12 is equipped with the light guide connector 13 for connecting light supply apparatus.The behaviour of the present embodiment
Make to be additionally provided with the camera shooting control button 14 for controlling CCD camera 9b work in portion 1.Optical fibers channel 8 can be set to
Two, to increase illumination zone.
Further, it is additionally provided with aspirated and water sending channel 15 in the insertion tube 2 of the present embodiment, is equipped with and supplies gas in leading end portion 3
The nozzle passage 16 that aquaporin 15 is connected, the interior nozzle 17 that objective lens 9c is directed toward equipped with injection direction of nozzle passage 16.Operation
Portion 1 is equipped with the aspirated and water sending piston 27 being connected with the aspirated and water sending channel 15.
Further, instrument channel 18 is additionally provided in insertion tube 2, leading end portion 3 is equipped with the instrument being connected with instrument channel 18
Channel outlet 19, operation portion 1 are equipped with instrument channel opening 20.Instrument channel 20 upper covers of opening of the present embodiment are installed with closed
Lid 21.Closed cover 21 is equipped with the through-hole 22 being connected with instrument channel 18 and the capping 23 for covering on through-hole 22, leads to
The inner wall in hole 22 is equipped with the backflow preventing structure for preventing gastric juice from flowing backwards.The backflow preventing structure of the present embodiment includes that annular is uniformly distributed
Anti-down flow 24 on 22 inner wall of through-hole is set, anti-down flow 24 is made of soft material, all anti-down flows 224 it
Between form the jack 25 coaxial with through-hole 22, the outer diameter of the internal diameter of jack 25 less than instrument insertion tube；And in the axial direction of through-hole 22
On view direction, partly overlap between the adjacent anti-down flow 24 of two panels.It is set between the capping 23 and closed cover 21 of the present embodiment
There is soft connecting line 26 to be connected, prevents capping 23 from falling off loss.
Backflow preventing structure is set by setting closed cover and in the channel of closed cover, using between the anti-down flow of two panels
The structure for dividing overlapping, when the insertion of instrument insertion tube, jack is suitably opened forms certain closing force between instrument insertion tube,
Gastric juice flow backwards when can effectively stop gastric juice outflow instrument channel opening, and anti-down flow only have radially inward end with
Friction is generated between instrument insertion tube, and anti-down flow can reserve enough wear allowances in production, even if making for a long time
With rear, it is also able to maintain the technical purpose of anti-backflow.In addition, instrument insertion tube stretches out instrument channel and goes out after insertion tube is hardened
Mouthful direction can also accurately control, can be deformed in insertion instrument insertion tube without such as existing soft insertion tube and
The problem of causing leading end portion direction to change, it can be achieved that accurate smoothly control when needing biopsy and passing through gastroscope operation
System.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of soft or hard transformation gastroscope, including operation portion (1), it is connected with insertion tube (2) on the operation portion (1), it is described to insert
Enter pipe (2) and is equipped with leading end portion (3) far from the one end of the operation portion (1)；It is characterized by: being equipped in the insertion tube (2) soft
Channel (4) and steel wire channel (5) are changed in cirrhosis；Filling is equipped with magnetorheological fluid, the soft or hard transformation in the soft or hard transformation channel (4)
Channel (4) is externally provided with the magnet exciting coil (4a) for generating magnetic field, and the operation portion (1) is equipped with for controlling magnet exciting coil
The soft or hard transformation button (6) of (4a) on-off；The operation portion (1) is equipped with the adjusting knob (7) for adjusting direction, the elder generation
End (3) is equipped with apex steel wire channel (28), and the steel wire channel (5) and the interior apex steel wire channel (28), which are equipped with, adjusts steel
Silk (5a), described one end for adjusting steel wire (5a) is fixedly connected with the end of the leading end portion (3), the other end and the adjusting revolve
Button (7) is connected.
2. soft or hard transformation gastroscope according to claim 1, it is characterised in that: be additionally provided with guiding fiber in the insertion tube (2)
Channel (8) and CCD cable passage (9) are tieed up, is equipped with the elder generation being connected with the optical fibers channel (8) in the leading end portion (3)
Hold guide lighting channel (10) and the channel apex CCD (11) with the CCD cable passage (9), the optical fibers channel (8) and elder generation
It holds in guide lighting channel (10) and is equipped with optical fibers (8a), CCD is equipped in the CCD cable passage (9) and the channel apex CCD (11)
Cable (9a), and the CCD microcam being electrically connected with the CCD cable (9a) is additionally provided in the channel the apex CCD (11)
The end of (9b), the channel the apex CCD (11) are equipped with objective lens (9c).
3. soft or hard transformation gastroscope according to claim 2, it is characterised in that: the operation portion (1) is equipped with connecting line
(12), the light guide connected with the optical fiber (8a) connect fiber in the connecting line (12), and on the connecting line (12)
Equipped with the light guide connector (13) for connecting light supply apparatus.
4. soft or hard transformation gastroscope according to claim 2, it is characterised in that: be additionally provided on the operation portion (1) for controlling
Make the camera shooting control button (14) of the CCD camera (9b) work.
5. soft or hard transformation gastroscope according to claim 2, it is characterised in that: be additionally provided with and supply gas in the insertion tube (2)
Aquaporin (15), the leading end portion (3) is interior equipped with the nozzle passage (16) being connected with the aspirated and water sending channel (15), described
The nozzle (17) of the objective lens (9c) is directed toward in nozzle passage (16) equipped with injection direction.
6. soft or hard transformation gastroscope according to claim 1, it is characterised in that: the magnet exciting coil (4a) and the soft or hard change
Change channel (4) coaxial arrangement.
7. soft or hard transformation gastroscope according to claim 1-6, it is characterised in that: also set in the insertion tube (2)
Have instrument channel (18), the leading end portion (3) is equipped with the instrument channel outlet (19) being connected with the instrument channel (18), institute
Operation portion (1) is stated equipped with instrument channel opening (20).
8. soft or hard transformation gastroscope according to claim 7, it is characterised in that: instrument channel opening (20) the upper cover installing
There are closed cover (21).The closed cover (21) is equipped with the through-hole (22) being connected with the instrument channel (18) and for covering
Capping (23) on the through-hole (22), the inner wall of the through-hole (22) are equipped with the anti-backflow knot for preventing gastric juice from flowing backwards
Structure.
9. soft or hard transformation gastroscope according to claim 8, it is characterised in that: the backflow preventing structure includes that annular is laid
The anti-down flow (24) on the through-hole (22) inner wall is set, the anti-down flow (24) is made of soft material, all
The jack (25) coaxial with the through-hole (22) is formed between the anti-down flow 2 (24), the internal diameter of the jack (25) is less than
The outer diameter of instrument insertion tube；And on the axial view direction of the through-hole (22), anti-down flow (24) described in adjacent two panels it
Between partly overlap.
10. soft or hard transformation gastroscope according to claim 8, it is characterised in that: the capping (23) and the closed cover
(21) soft connecting line (26) are equipped between to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883664.5A CN109124552A (en) | 2018-08-06 | 2018-08-06 | Soft or hard transformation gastroscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883664.5A CN109124552A (en) | 2018-08-06 | 2018-08-06 | Soft or hard transformation gastroscope |
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| CN109124552A true CN109124552A (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810883664.5A Pending CN109124552A (en) | 2018-08-06 | 2018-08-06 | Soft or hard transformation gastroscope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109528150A (en) * | 2019-01-15 | 2019-03-29 | 北京大学第三医院（北京大学第三临床医学院） | A kind of angle adjustable bronchoscope fixed system |
| CN110762089A (en) * | 2019-11-15 | 2020-02-07 | 昆山新联德五金机械设备有限公司 | Hard and soft adjustable hardware sleeve |
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