CN208808433U - Fujinon electronic video endoscope cephalic par structure - Google Patents
Fujinon electronic video endoscope cephalic par structure Download PDFInfo
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- CN208808433U CN208808433U CN201820316685.4U CN201820316685U CN208808433U CN 208808433 U CN208808433 U CN 208808433U CN 201820316685 U CN201820316685 U CN 201820316685U CN 208808433 U CN208808433 U CN 208808433U
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Abstract
The utility model provides a kind of fujinon electronic video endoscope cephalic par structure, belongs to the field of medical instrument technology.It solves the problems, such as that existing fujinon electronic video endoscope cephalic par unreasonable structural design, observability are low.This fujinon electronic video endoscope cephalic par structure, including the head end cap with end surface for being connect with curved part of endoscope, end surface is equipped with observation window, illuminating window, surgical instrument channel and aqueous vapor nozzle, it is equipped between observation window and illuminating window for preventing the stray light that is useless and damaging picture quality issued from illuminating window from entering the shading step in observation window in objective system, the outer surface of the outermost layer eyeglass in illuminating window is lower than shading step.The utility model has many advantages, such as that reasonable in design, lighting source is excellent and observability is high.
Description
Technical field
The utility model belongs to the field of medical instrument technology, is related to a kind of fujinon electronic video endoscope, peeps in especially a kind of electronics
Lens head structure.
Background technique
Fujinon electronic video endoscope be it is a kind of there is elongated flexible insertion section and its front end is provided with photographic device body can be inserted
The intracavitary device for obtaining intracavitary scene image, it with the other equipment of endoscopic system by connecting, it can be achieved that intracavitary scene image
Real-time output display.The front end of insertion section has bending section, can change cephalic par sight by the operated by handwheel of operation portion
Examine the direction of observation of window.And there is surgical instrument channel, defined part thereof can be passed through this channel and be operated.It is interior
Sight glass has the camera optical unit with objective lens optical system in cephalic par design, and design has in objective lens optical system adjacent place
The lamp optical system of illumination is provided for objective system.Since lamp optical system and objective lens optical system are separated by relatively close, illumination
Part stray light can enter directly into objective lens optical system in optical system, cause objective lens optical system imaging abnormal, often
Appearance image is excessively bright, whitens, and leads to fogging image, influences operator's observation and surgical procedure.In addition, having in cephalic par design
Aqueous vapor nozzle cleans come the outermost layer eyeglass to objective system, but it is typically only capable to spray water, gas to objective lenses, can not
Lighting system eyeglass is taken into account, after spraying water, water flow meeting fair current in part simultaneously remains in illuminated mirror on piece, has to light source brightness of illumination
Certain influence not enough influences operator's observation or surgical procedure so as to cause brightness of image.
It being cleaned for water vapor injection, Chinese patent discloses a kind of endoscope [Authorization Notice No. CN102652663B],
It is equipped in the insertion section front end of even endoscope and send water, feed nozzle, observation window and illuminating window.Its cardinal principle is that objective system is seen
The certain size relatively higher than plane where illuminating window of plane where examining window, and two interplanar designs have the inclined-plane of slow transition,
When water vapor injection, observation window and illuminating window can be cleaned simultaneously by the water conservancy diversion on inclined-plane.Since a part of aqueous vapor is for shining
The cleaning of bright window, flow and pressure for cleaning the aqueous vapor of observation window become smaller relatively, are not thorough to the degree of cleaning of observation window.
Close situation is separated by for objective system and lighting system, segmentation scheme is taken the ray angles of lighting system
Degree is opposite to be reduced or the light-emitting angle of strict guarantee lens, being easier to or may enter light in objective system from light
It learns and is excluded in lens design.But this mode is also impossible to avoid above situation completely, and the design to illuminated mirror piece
Processing request is also relatively high, after illuminating ray angle is opposite to be reduced, in the observation of nearly focal length, and objective system acquired image
Surrounding influences observability than darker.
Close situation is separated by for objective system and lighting system, there are also scheme be will be in lighting system eyeglass mould group
The heart is tilted a certain angle with respect to objective system mould group center, and objective system is avoided except lighting system completely.But this side
Preceding end spaces shared by case are relatively large, are unfavorable for sufficiently reducing the diameter dimension of endoscope head end.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of electricity that observability is high
Sub- endoscope head end construction.
The purpose of this utility model can be realized by the following technical scheme:
Fujinon electronic video endoscope cephalic par structure, including the head end cap with end surface for being connect with curved part of endoscope,
The end surface is equipped with observation window, illuminating window, surgical instrument channel and aqueous vapor nozzle, which is characterized in that the observation
It is equipped between window and illuminating window for from preventing the stray light that is useless and damaging picture quality issued from illuminating window from entering
The outer surface of shading step in window in objective system, the outermost layer eyeglass in illuminating window is lower than shading step.
In above-mentioned fujinon electronic video endoscope cephalic par structure, the observation window is in the injection model of aqueous vapor nozzle water outlet
In enclosing, the illuminating window is in outside the spray regime of aqueous vapor nozzle water outlet, is also set between the observation window and illuminating window
There is the barrier assembly for preventing the water flow diffused out from observation window from entering illuminating window.
In above-mentioned fujinon electronic video endoscope cephalic par structure, the barrier assembly includes the blocking platform on end surface
Rank, the blocking step are higher than end surface, and above-mentioned illuminating window is set on the blocking step, the side tool for stopping step
There is water conservancy diversion inclined-plane.
In above-mentioned fujinon electronic video endoscope cephalic par structure, the shading step, which is set to, to be stopped on step, the screening
Light table rank is arranged in a ring and around illuminating window.Stop step that can design with shading step in integral structure, and shading platform
Rank can be higher than and stop step.Therefore, shading step also has the water for preventing from diffusing out from observation window in addition to having light shielding ability
Stream enters the ability of illuminating window.
In above-mentioned fujinon electronic video endoscope cephalic par structure, the quantity of the illuminating window is 1-5 and is in aqueous vapor spray
Outside the spray regime of mouth water outlet, the quantity for stopping step is equal with the quantity of illuminating window, the quantity of the shading step
It is equal with the quantity of illuminating window.
In above-mentioned fujinon electronic video endoscope cephalic par structure, the quantity of the illuminating window is 2.
Wherein stopping step is 2, and shading step is also 2, and each illuminating window is correspondingly provided with a shading step and one
A blocking step.In order to improve uniform illumination degree, 2 illuminating windows are symmetrical along observation window and the line in surgical instrument channel,
So 2 blocking step night dinner observation windows and the line in surgical instrument channel are symmetrical.
In above-mentioned fujinon electronic video endoscope cephalic par structure, the surgical instrument channel is in aqueous vapor nozzle water outlet
Outside spray regime.
In above-mentioned fujinon electronic video endoscope cephalic par structure, end surface is equipped with auxiliary and send water hole.
When work, the cold light source host of endoscope provides illumination by the way that illumination light is transmitted to head end by optical fiber after light guide section
Portion issues illumination lights from 2 illuminating windows, and objective system is collected by observation window and is transferred to interior peep by electrical signal line after image
The image processor host analysis of mirror handles and finally shows image by display, observes for operator.
The light source light angle that the optical system of two illuminating windows provides is θ, and corresponding χ angle is useless stray light.
Wherein, the size of θ value matches its viewing angle according to the optical design of objective system, i.e., under the object lens viewing angle of setting,
For illuminating window, only the light in θ angle can be fully utilized, and the light of the χ angle except θ is useless and opposite
There are the light of damage picture quality, χ=(180 ° of-θ)/2.Devise 2 shading steps, while the outermost layer eyeglass of illuminating window
Outer surface is lower than shading step certain altitude t, at work, the light quilt for the χ angle in addition to θ angle that illuminating window is issued
Shading step blocks.Therefore, the corresponding stray light of χ angle will not enter directly into objective system, would not also influence figure
Image quality amount improves observability.
In addition, stopping step that can also solve the problems, such as that illuminating window can remain water droplet: when aqueous vapor nozzle, which sprays, to be discharged, by it
The main jet face of the angle of design is observation window, can then carry out jet to observation window after water spray and blow away residual water droplet.Work as aqueous vapor
When nozzle is to observation window spraying-rinsing, wherein sub-fraction water can be diffused into the other positions of head end cap end surface, due to head end
The opposite end surface for being higher by head end cap of plane where blocking step on cap, illuminating window is in again to be stopped in step, therefore is spread
Fraction water flow out is just blocked by two blocking steps and along water conservancy diversion inclined-plane water conservancy diversion to impregnable region, illumination
Window would not also be influenced by water droplet, can provide optimal lighting source.
Compared with prior art, this fujinon electronic video endoscope cephalic par structure has the advantage that
Its is reasonable in design, and observation window is in the spray regime of aqueous vapor nozzle water outlet, and illuminating window is in aqueous vapor spray
Outside the spray regime of mouth water outlet, when aqueous vapor nozzle is to observation window spraying-rinsing, only fraction water can be diffused into head end cap
The other positions of end surface, while blocking step is designed, effectively water flow can be stopped to enter in illuminating window, and led by water conservancy diversion inclined-plane
Impregnable region is flowed to, illuminating window is enable to provide optimal lighting source；It is provided with shading step simultaneously, can prevent from photograph
The stray light that is useless and damaging picture quality that bright window issues enters in the objective system in observation window, the observable of observation window
Property it is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cephalic par structure provided by the utility model.
Fig. 2 is the cross-sectional view of cephalic par structure provided by the utility model.
In figure, 1, end surface；2, head end cap；3, observation window；4, illuminating window；5, surgical instrument channel；6, aqueous vapor nozzle；
7, shading step；8, stop step；9, water conservancy diversion inclined-plane；10, auxiliary send water hole.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Fujinon electronic video endoscope cephalic par structure as shown in Figure 1, including there is head end for what is connect with curved part of endoscope
The head end cap 2 in face 1, end surface 1 be equipped with observation window 3, illuminating window 4, surgical instrument channel 5 and aqueous vapor nozzle 6, observation window 3 with
It is equipped between illuminating window 4 for preventing the stray light that is useless and damaging picture quality issued from illuminating window 4 from entering observation window 3
Shading step 7 in interior objective system, as shown in Fig. 2, the outer surface for the outermost layer eyeglass being located in illuminating window 4 is lower than shading platform
Rank 7.
As shown in Figure 1, observation window 3 is in the spray regime of 6 water outlet of aqueous vapor nozzle, illuminating window 4 is in aqueous vapor nozzle 6
Outside the spray regime of water outlet, it is additionally provided between observation window 3 and illuminating window 4 for preventing the water diffused out from observation window 3 from flowing into
Enter the barrier assembly to illuminating window 4.
As depicted in figs. 1 and 2, barrier assembly includes the blocking step 8 on end surface 1, and step 8 is stopped to be higher than head
End face 1, illuminating window 4 are set on the blocking step 8, and the side of step 8 is stopped to have water conservancy diversion inclined-plane 9.
Stop on step 8 as shown in Figure 1, shading step 7 is set to, shading step 7 is arranged in a ring and around illuminating window 4.
Stop step 8 that can design with shading step 7 in integral structure, and shading step 7 can be higher than blocking step 8.Therefore,
Shading step 7 also has the ability for preventing the water flow diffused out from observation window 3 from entering illuminating window 4 in addition to having light shielding ability.
According to the actual situation, the quantity of settable illuminating window 4 is 1-5 and is in the spray of 6 water outlet of aqueous vapor nozzle
It penetrates outside range, stops the quantity of step 8 equal with the quantity of illuminating window 4, the quantity and the quantity phase of illuminating window 4 of shading step 7
Deng.
As shown in Figure 1, the quantity of illuminating window 4 is 2.Wherein stopping step 8 is 2, and shading step 7 is also 2, often
A illuminating window 4 is correspondingly provided with a shading step 7 and a blocking step 8.In order to improve uniform illumination degree, 24 edges of illuminating window
Observation window 3 and the line in surgical instrument channel 5 are symmetrical, then 2 blocking step 8 night dinner observation windows 3 and surgical instrument are logical
The line in road 5 is symmetrical.
As shown in Figure 1, surgical instrument channel 5 is in outside the spray regime of 6 water outlet of aqueous vapor nozzle, set on end surface 1
There is auxiliary to send water hole 10.
When work, the cold light source host of endoscope provides illumination by the way that illumination light is transmitted to head end by optical fiber after light guide section
Portion issues illumination lights from 2 illuminating windows 4, objective system collected after image by observation window 3 be transferred to by electrical signal line it is interior
The image processor host analysis of sight glass handles and finally shows image by display, observes for operator.
The light source light angle that the optical system of two illuminating windows 4 provides is θ, and corresponding χ angle is useless stray light.
Wherein, the size of θ value matches its viewing angle according to the optical design of objective system, i.e., under the object lens viewing angle of setting,
For illuminating window 4, only the light in θ angle can be fully utilized, and the light of the χ angle except θ is useless and phase
To the light for having damage picture quality, χ=(180 ° of-θ)/2.Devise 2 shading steps 7, while the outermost layer mirror of illuminating window 4
The outer surface of piece is lower than 7 certain altitude t of shading step, at work, the χ angle in addition to θ angle that illuminating window 4 is issued
Light blocked by shading step 7.Therefore, the corresponding stray light of χ angle will not enter directly into objective system, also would not
Picture quality is influenced, observability is improved.
In addition, stopping step 8 that can also solve the problems, such as that illuminating window 4 can remain water droplet: when aqueous vapor nozzle 6, which sprays, to be discharged,
It is observation window 3 by the main jet face of angle of its design, can then carries out jet to observation window 3 after water spray and blow away residual water droplet.
When aqueous vapor nozzle 6 is to 3 spraying-rinsing of observation window, wherein sub-fraction water can be diffused into other positions of 2 end surface 1 of head end cap
It sets, due to the opposite end surface 1 for being higher by head end cap 2 of 8 place plane of blocking step on head end cap 2, illuminating window 4 is again in blocking
In step 8, therefore the fraction water flow diffused out is just blocked by two blocking steps 8 and is arrived along 9 water conservancy diversion of water conservancy diversion inclined-plane
Impregnable region, illuminating window 4 would not also be influenced by water droplet, can provide optimal lighting source.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
1. a kind of fujinon electronic video endoscope cephalic par structure, including the head with end surface (1) for being connect with curved part of endoscope
End cap (2), the end surface (1) are equipped with observation window (3), illuminating window (4), surgical instrument channel (5) and aqueous vapor nozzle
(6), which is characterized in that the nothing for preventing from issuing from illuminating window (4) is equipped between the observation window (3) and illuminating window (4)
With and damage the stray light of picture quality and enter shading step (7) in observation window (3) interior objective system, be located at illuminating window
(4) outer surface of the outermost layer eyeglass in is lower than shading step (7).
2. fujinon electronic video endoscope cephalic par structure according to claim 1, which is characterized in that the observation window (3) is in
In the spray regime of aqueous vapor nozzle (6) water outlet, the illuminating window (4) is in the spray regime of aqueous vapor nozzle (6) water outlet
Outside, it is additionally provided between the observation window (3) and illuminating window (4) for preventing the water flow diffused out from observation window (3) from entering
The barrier assembly of illuminating window (4).
3. fujinon electronic video endoscope cephalic par structure according to claim 2, which is characterized in that the barrier assembly includes setting
In the blocking step (8) on end surface (1), the blocking step (8) is higher than end surface (1), and above-mentioned illuminating window (4) is set to
On the blocking step (8), the side for stopping step (8) has water conservancy diversion inclined-plane (9).
4. fujinon electronic video endoscope cephalic par structure according to claim 3, which is characterized in that the shading step (7) is set
In in blocking step (8), the shading step (7) is arranged in a ring and around illuminating window (4).
5. fujinon electronic video endoscope cephalic par structure according to claim 4, which is characterized in that the quantity of the illuminating window (4)
It for 1-5 and is in outside the spray regime of aqueous vapor nozzle (6) water outlet, the quantity for stopping step (8) and illuminating window (4)
Quantity it is equal, the quantity of the shading step (7) is equal with the quantity of illuminating window (4).
6. fujinon electronic video endoscope cephalic par structure according to claim 5, which is characterized in that the quantity of the illuminating window (4)
It is 2.
7. fujinon electronic video endoscope cephalic par structure according to claim 1, which is characterized in that the surgical instrument channel
(5) outside the spray regime in aqueous vapor nozzle (6) water outlet.
8. fujinon electronic video endoscope cephalic par structure according to claim 1, which is characterized in that set on the end surface (1)
There is auxiliary to send water hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316685.4U CN208808433U (en) | 2018-03-08 | 2018-03-08 | Fujinon electronic video endoscope cephalic par structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316685.4U CN208808433U (en) | 2018-03-08 | 2018-03-08 | Fujinon electronic video endoscope cephalic par structure |
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| CN208808433U true CN208808433U (en) | 2019-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420389A (en) * | 2018-03-08 | 2018-08-21 | 重庆金山医疗器械有限公司 | Endoscope head end construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420389A (en) * | 2018-03-08 | 2018-08-21 | 重庆金山医疗器械有限公司 | Endoscope head end construction |
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Effective date of registration: 20211116 Address after: 401120 1-1, 2-1, 3-1, building 5, No. 18, Cuiping Lane 2, Huixing street, Yubei District, Chongqing Patentee after: Chongqing Jinshan Medical Technology Research Institute Co., Ltd Address before: 401120 1 office buildings, Jinshan International Industrial City, 18 of Nei sang Road, Hui Xing street, Yubei District, Chongqing. Patentee before: Chongqing Jinshan Medical Equipment Co., Ltd |