CN111297309A - Electronic endoscope for medical image imaging - Google Patents
Electronic endoscope for medical image imaging Download PDFInfo
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- CN111297309A CN111297309A CN202010154204.6A CN202010154204A CN111297309A CN 111297309 A CN111297309 A CN 111297309A CN 202010154204 A CN202010154204 A CN 202010154204A CN 111297309 A CN111297309 A CN 111297309A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 31
- 239000013307 optical fiber Substances 0.000 claims abstract description 31
- 238000003780 insertion Methods 0.000 claims abstract description 21
- 230000037431 insertion Effects 0.000 claims abstract description 21
- 238000005286 illumination Methods 0.000 claims abstract description 9
- 239000011553 magnetic fluid Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 41
- 239000000314 lubricant Substances 0.000 claims description 11
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000002059 diagnostic imaging Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 14
- 230000002159 abnormal effect Effects 0.000 description 9
- 238000003745 diagnosis Methods 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010033372 Pain and discomfort Diseases 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 230000003902 lesion Effects 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
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- 210000001835 viscera Anatomy 0.000 description 1
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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
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
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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
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00082—Balloons
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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
- A61B1/00131—Accessories for endoscopes
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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
- A61B1/06—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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- 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
- A61B1/12—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 cooling or rinsing arrangements
- A61B1/128—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 cooling or rinsing arrangements provided with means for regulating temperature
Abstract
The invention belongs to the technical field of medical imaging equipment, in particular to an electronic endoscope for medical image imaging, which comprises an insertion tube; the two ends of the insertion tube are fixedly connected with the handheld part and the endoscope head respectively; the endoscope head is connected with the optical fiber and the control imaging display device through a lead arranged in the handheld part and the insertion tube; the endoscope head comprises a tubular endoscope body, one end of the endoscope body is fixedly connected with the insertion tube, and the other end of the endoscope body is fixedly connected with a lens; an annular mounting seat is fixedly connected in the lens body, and a group of optical fibers for illumination are uniformly distributed on the periphery of the mounting seat; a flexible objective lens is arranged in an annular groove formed in the inner periphery of the mounting seat, and a CCD video line is arranged at one end, far away from the objective lens, of the objective lens; an annular cavity is arranged at the position of the objective lens close to the outer edge, and magnetic fluid is filled in the annular cavity; the bottom of the annular groove is provided with an electromagnet surrounding the periphery of the objective lens, and the electromagnet is connected with a control imaging display device through a lead; the invention controls the focal length of the objective lens through the electromagnet, and improves the definition and the identification degree of the endoscope.
Description
Technical Field
The invention belongs to the technical field of medical imaging equipment, and particularly relates to an electronic endoscope for medical image imaging.
Background
The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software into a whole. One has an image sensor, optical lens, light source illumination, mechanical device, etc. that can enter the stomach orally or through other natural orifices. Since a lesion which cannot be displayed by X-ray can be seen by an endoscope, it is very useful for a doctor. For example, with the aid of an endoscopist, an ulcer or tumor in the stomach can be observed, and an optimal treatment plan can be developed accordingly.
An electronic endoscope is a medical electronic optical instrument which can be directly inserted into a human body cavity or an internal organ cavity for diagnosis, and utilizes an electronic imaging element with an extremely small size to transmit an observed image signal to an image processor, and then directly provides image information on a monitor for observation and diagnosis of a doctor.
However, when the existing electronic endoscope irradiates a human body with an illumination lens, the focal length of the objective lens is fixed, and the existing electronic endoscope cannot effectively focus when penetrating into different positions of the human body, so that the imaging definition of the CCD is poor, the diagnosis requirement of a doctor cannot be met, the endoscope needs to be used for multiple times to enter the human body for observation, the efficiency is low, and meanwhile, the pain and the discomfort of a patient during diagnosis are increased.
Some technical solutions related to medical imaging devices have appeared in the prior art, for example, a chinese patent with application number 2015109967537 discloses an electronic endoscope, which adjusts the distance between an imaging lens set and a photosensitive assembly through an axial position adjusting device, so that the electronic endoscope has a certain function of adjusting the image distance, but the adjusting efficiency is low, the adjusting range is small, and it is not beneficial to quickly positioning the focus.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that when the existing electronic endoscope utilizes an illuminating lens to irradiate the human body, the focal length of an objective lens is fixed, and the objective lens can not effectively focus when the objective lens permeates into different positions of the human body, so that the imaging definition of a CCD (charge coupled device) is poor, the diagnosis requirement of a doctor can not be met, the endoscope needs to be used for multiple times to enter the human body for observation, the efficiency is low, and the pain and discomfort of a patient during diagnosis are increased.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an electronic endoscope for medical image imaging, which comprises an insertion tube; the two ends of the insertion tube are fixedly connected with a handheld part and an endoscope head respectively; the endoscope head is connected with an optical fiber and a control imaging display device through a lead arranged in the handheld part and the insertion tube; the endoscope head comprises a tubular endoscope body, one end of the endoscope body is fixedly connected with the insertion tube, and the other end of the endoscope body is fixedly connected with a lens; an annular mounting seat is fixedly connected in the lens body, and a group of optical fibers for illumination are uniformly distributed on the periphery of the mounting seat; a flexible objective lens is arranged in an annular groove formed in the inner periphery of the mounting seat, and a CCD video line is arranged at one end, far away from the objective lens, of the objective lens; an annular cavity is arranged at the position, close to the outer edge, of the objective lens, and magnetic fluid is filled in the annular cavity; the bottom of the annular groove is provided with an electromagnet surrounding the periphery of the objective lens, and the electromagnet is connected with a control imaging display device through a lead; the focus of the objective lens is controlled by the electromagnet, so that the definition and the identification degree of the endoscope are improved; when the endoscope is used, the handheld part is grasped, the endoscope head is inserted into a part to be detected in a detected body through the insertion tube, meanwhile, the part to be detected is illuminated through the optical fiber, so that light rays of the part to be detected enter the CCD video line after being subjected to diffuse reflection and sequentially pass through the lens and the objective lens, and finally, image information of the part to be detected is displayed in real time after being processed by the control imaging display equipment; at this moment, through the magnetism of control electro-magnet, make the electro-magnet attract the magnetic current body in the annular chamber, make the objective outer fringe pulled, and then the thickness of control objective, finally change the focus of objective, further increase the definition of objective formation of image, can wait to observe the position to carry out abluent focusing and formation of image to different positions, reduce endoscope head's removal frequency, further reduce the uncomfortable sense that brings for the person of examining in the inspection process, improve the definition and the discernment of endoscope, increase the work efficiency of endoscope.
Preferentially, one end of the optical fiber, which is close to the lens, is sleeved with a steering sleeve, one side of the periphery of the steering sleeve, which is close to the objective lens, is fixedly connected with an L-shaped swing rod, and the corner of the swing rod is hinged with the lens body; one end of the swing rod, which is far away from the steering sleeve, is hinged with a flexible telescopic rod, one end of the telescopic rod, which is far away from the swing rod, is fixedly connected with a piston, a cylinder barrel is sleeved on the periphery of the piston, and the cylinder barrel is fixedly connected with the mirror body; the oil inlet hole formed in the bottom of the cylinder barrel is communicated with the control device through a pipeline, and the cylinder barrel is filled with liquid for driving the piston to move; the sliding of the piston is controlled by the control device, so that the angle of the head of the optical fiber is controlled, and the working efficiency of the endoscope is further improved; when the endoscope body is pushed forwards, liquid is filled into the cylinder barrel through the control device, so that the piston slides to drive the telescopic rod to extend out, further the swing rod is pushed to rotate, the steering sleeve is driven to rotate, finally the optical fiber is driven to deflect towards the peripheral direction of the endoscope body, the illumination area of the endoscope head is increased, the visual field is further increased, and detection personnel can conveniently and quickly position abnormal parts; when a detector finds a focus or other abnormal parts, the endoscope head stops being pushed, liquid in the cylinder barrel is sucked out through the control device and the pipeline, the telescopic rod drives the swing rod and the steering sleeve to rotate, light rays emitted by the optical fibers are converged, the brightness of the focus or the abnormal parts is increased, the focus adjustment of the objective lens is matched, the observation definition and the observation accuracy are further increased, and the working efficiency of the endoscope is further increased.
Preferably, a transparent snap ring is arranged between the lens and the lens body; one end of the optical fiber close to the lens is positioned in the middle of the clamping ring; a spherical bag is arranged between the steering sleeve and the clamping ring, and lubricating liquid is filled in the spherical bag; the spherical bag is communicated with the outside of the clamping ring through the jet hole; the steering sleeve is used for extruding the spherical bag to extrude the lubricant, so that the forward resistance of the endoscope head is reduced, and the working efficiency of the endoscope is further improved; when the optical fiber is driven by the steering sleeve to deflect towards the periphery of the endoscope body and is matched with the endoscope body to be pushed forwards, the steering sleeve extrudes the spherical bag, so that the lubricant in the spherical bag is extruded out through the jet holes, the lubricant increases the lubricity of the periphery of the endoscope body, the advancing resistance of the endoscope head is further reduced, and the working efficiency of the endoscope is further increased.
Preferentially, one side of the objective lens is provided with a transparent film, and a cavity formed between the film and the objective lens is filled with transparent liquid; the cavity is communicated with a filling device through a pipeline, and the filling device is used for controlling the filling amount of the cavity; the liquid is filled into the cavity to enlarge the focal length variable range of the objective lens, so that the definition and the identification degree of the endoscope are further increased; the filling device is used for controlling the filling amount of the transparent liquid in the cavity, so that the thickness of the cavity is controlled, the adjustable range of the focal length of the objective lens is further enlarged, the definition of the visual field of the endoscope is increased, the application range of the endoscope is further enlarged, the detection time is shortened, the discomfort of a detected person is further reduced, and the definition and the identification degree of the endoscope are increased.
Preferentially, one end of the cylinder barrel, which is close to the swing rod, is provided with a liquid discharge hole, and the liquid discharge hole is communicated with the cavity through a hose; the oil inlet is communicated with the filling device through a pipeline; transparent liquid is filled into the cavity through the liquid discharge hole, so that pipelines are reduced, the volume of the endoscope is reduced, and the working efficiency of the endoscope is further improved; through the intercommunication of hose and outage, the control pipeline of integration reduces endoscope head and the quantity of inserting the pipeline in the pipe, further reduces the volume of endoscope, and then makes the endoscope can go deep into narrow and small position and detect, further increases the detection efficiency and the detection precision of endoscope, reduces the wound to the person of being examined simultaneously, further increases the work efficiency of endoscope.
Preferentially, the hose is tightly attached to the periphery of the electromagnet, and the heat generated by the electromagnet is utilized to heat the transparent liquid, so that the elasticity of the film is increased, and the definition and the identification degree of the endoscope are further increased; the heat that produces through the electro-magnet during operation heats the hose, and then heats the transparent liquid in the cavity, increases the temperature of film and objective, and then increases the elasticity of objective and film, further enlarges the limit change range of objective focus, reduces the probability that film and objective were excessively torn the damage, further increases the definition and the discernment degree of endoscope, increases the life of endoscope simultaneously.
The invention has the following beneficial effects:
1. according to the electronic endoscope for medical image imaging, disclosed by the invention, the electromagnet attracts the magnetic fluid in the annular cavity by controlling the magnetism of the electromagnet, so that the outer edge of the objective lens is pulled, the thickness of the objective lens is further controlled, the focal length of the objective lens is finally changed, the imaging definition of the objective lens is further increased, the parts to be observed at different positions can be cleaned, focused and imaged, the moving frequency of the endoscope lens is reduced, the discomfort brought to a person to be examined in the examination process is further reduced, the definition and the identification of the endoscope are improved, and the working efficiency of the endoscope is increased.
2. According to the electronic endoscope for medical image imaging, the optical fibers are driven by the steering sleeve to deflect towards the periphery of the endoscope body, and when the endoscope body is pushed forwards in a matching manner, the steering sleeve presses the spherical bag, so that a lubricant in the spherical bag is extruded out through the spray holes, the lubricant increases the lubricity of the periphery of the endoscope body, the advancing resistance of the endoscope lens is further reduced, and the working efficiency of the endoscope is further increased.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
fig. 2 is a cross-sectional view of an endoscope head according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
in the figure: the endoscope comprises an insertion tube 1, a handheld part 11, an endoscope head 2, an endoscope body 21, a lens 22, a mounting seat 23, an optical fiber 24, an annular groove 25, an objective lens 26, a CCD video cable 27, an annular cavity 28, an electromagnet 29, a steering sleeve 3, a swing rod 31, a telescopic rod 32, a cylinder 33, an oil inlet 34, a clamping ring 12, a spherical bag 13, a spray hole 14, a film 4, a cavity 41, a liquid discharge hole 42 and a hose 43.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, an electronic endoscope for medical image imaging according to the present invention includes an insertion tube 1; the two ends of the insertion tube 1 are fixedly connected with a handheld part 11 and an endoscope head 2 respectively; the endoscope head 2 is connected with an optical fiber 24 and a control imaging display device through a conducting wire arranged in the handheld part 11 and the insertion tube 1; the endoscope head 2 comprises a tubular endoscope body 21, one end of the endoscope body 21 is fixedly connected with the insertion tube 1, and the other end of the endoscope body 21 is fixedly connected with a lens 22; an annular mounting seat 23 is fixedly connected in the mirror body 21, and a group of optical fibers 24 for illumination are uniformly distributed on the periphery of the mounting seat 23; a flexible objective lens 26 is arranged in an annular groove 25 formed in the inner periphery of the mounting seat 23, and a CCD video line 27 is arranged at one end, far away from the lens 22, of the objective lens 26; an annular cavity 28 is arranged at the position, close to the outer edge, of the objective lens 26, and magnetic fluid is filled in the annular cavity 28; the bottom of the annular groove 25 is provided with an electromagnet 29 surrounding the periphery of the objective lens 26, and the electromagnet 29 is connected with a control imaging display device through a lead; the focus of the objective lens 26 is controlled by the electromagnet 29, so that the definition and the identification degree of the endoscope are increased; when in use, the handheld part 11 is grasped, the endoscope head 2 is inserted into a part to be detected in a detected body through the insertion tube 1, meanwhile, the part to be detected is illuminated through the optical fiber 24, so that light rays of the part to be detected enter the CCD video line 27 after passing through the lens 22 and the objective lens 26 in sequence after being subjected to diffuse reflection, and finally, image information of the part to be detected is displayed in real time after being processed by the control imaging display equipment; at this moment, through the magnetism of control electromagnet 29, make electromagnet 29 attract the magnetic current body in the annular chamber 28, make objective 26 outer fringe pulled, and then the thickness of control objective 26, finally change the focus of objective 26, further increase the definition of objective 26 formation of image, can wait to observe the position to carry out abluent focusing and formation of image to different positions, reduce endoscope head 2's shift frequency, further reduce the uncomfortable sense that brings for the person of examining in the inspection process, improve the definition and the discernment of endoscope, increase the work efficiency of endoscope.
As an embodiment of the invention, one end of the optical fiber 24 close to the lens 22 is sleeved with a steering sleeve 3, one side of the periphery of the steering sleeve 3 close to the objective lens 26 is fixedly connected with an L-shaped swing rod 31, and the corner of the swing rod 31 is hinged with the lens body 21; one end of the swing rod 31, which is far away from the steering sleeve 3, is hinged with a flexible telescopic rod 32, one end of the telescopic rod 32, which is far away from the swing rod 31, is fixedly connected with a piston, a cylinder 33 is sleeved on the periphery of the piston, and the cylinder 33 is fixedly connected with the mirror body 21; an oil inlet 34 formed in the bottom of the cylinder barrel 33 is communicated with a control device through a pipeline, and the cylinder barrel 33 is filled with liquid for driving the piston to move; the sliding of the piston is controlled by the control device, so that the angle of the head of the optical fiber 24 is controlled, and the working efficiency of the endoscope is further improved; when the endoscope body 21 is pushed forward, liquid is filled into the cylinder 33 through the control device, so that the piston slides to drive the telescopic rod 32 to extend out, further the swing rod 31 is pushed to rotate, the steering sleeve 3 is driven to rotate, finally the optical fiber 24 is driven to deflect towards the peripheral direction of the endoscope body 21, the illumination area of the endoscope head 2 is increased, the visual field is further increased, and the detection personnel can conveniently and quickly position abnormal parts; when a detector finds a focus or other abnormal parts, the pushing of the endoscope head 2 is stopped, and the liquid in the cylinder 33 is sucked out through the control device and the pipeline, so that the telescopic rod 32 drives the swing rod 31 and the steering sleeve 3 to rotate, further, the light emitted by the optical fiber 24 is converged, the brightness of the focus or the abnormal part is increased, the focus adjustment of the objective lens 26 is matched, the observation definition and the observation accuracy are further increased, and the working efficiency of the endoscope is further increased.
In one embodiment of the present invention, a transparent snap ring 12 is disposed between the lens and the lens body 21; one end of the optical fiber 24 close to the lens 22 is positioned in the middle of the clamping ring 12; a spherical bag 13 is arranged between the steering sleeve 3 and the snap ring 12, and lubricating liquid is filled in the spherical bag 13; the spherical bag 13 is communicated with the outside of the clamping ring 12 through a jet hole 14; the steering sleeve 3 is used for extruding the spherical bag 13 to extrude the lubricant, so that the advancing resistance of the endoscope head 2 is reduced, and the working efficiency of the endoscope is further improved; when the optical fiber 24 is driven by the steering sleeve 3 to deflect towards the peripheral direction of the endoscope body 21 and is matched with the endoscope body 21 to be pushed forward, the steering sleeve 3 presses the spherical bag 13, so that the lubricant in the spherical bag 13 is extruded out through the jet holes 14, the lubricant increases the lubricity of the periphery of the endoscope body 21, the forward resistance of the endoscope head 2 is further reduced, and the working efficiency of the endoscope is further increased.
In one embodiment of the present invention, a transparent film 4 is disposed on one side of the objective lens 26, and a cavity 41 formed between the film 4 and the objective lens 26 is filled with a transparent liquid; the cavity 41 is communicated with a filling device through a pipeline, and the filling device is used for controlling the filling amount of the cavity 41; the definition and the identification of the endoscope are further increased by filling the cavity 41 with liquid to increase the variable range of the focal length of the objective lens 26; the filling amount of the transparent liquid in the cavity 41 is controlled through the filling device, so that the thickness of the cavity 41 is controlled, the adjustable range of the focal length of the objective lens 26 is further enlarged, the definition of the visual field of the endoscope is increased, the use range of the endoscope is further enlarged, the detection time is shortened, the discomfort of a detected person is further reduced, and the definition and the identification degree of the endoscope are increased.
As an embodiment of the present invention, a liquid discharge hole 42 is opened at one end of the cylinder 33 close to the swing rod 31, and the liquid discharge hole 42 is communicated with the cavity 41 through a hose 43; the oil inlet hole 34 is communicated with a filling device through a pipeline; transparent liquid is filled into the cavity 41 through the liquid discharge hole 42, so that pipelines are reduced, the volume of the endoscope is reduced, and the working efficiency of the endoscope is further improved; through the intercommunication of hose 43 and outage 42, the control pipeline of integration reduces the quantity of endoscope head 2 and the pipeline in the intubate 1, further reduces the volume of endoscope, and then makes the endoscope can go deep into narrow and small position and detect, further increases the detection efficiency and the detection precision of endoscope, reduces the wound to the person of being examined simultaneously, further increases the work efficiency of endoscope.
In one embodiment of the present invention, the flexible tube 43 is tightly attached to the periphery of the electromagnet 29, and the transparent liquid is heated by the heat generated by the electromagnet 29, so as to increase the elasticity of the film 4 and further increase the definition and the recognition of the endoscope; the heat that produces through the electro-magnet 29 during operation heats hose 43, and then heats the transparent liquid in cavity 41, increases the temperature of film 4 and objective 26, and then increases objective 26 and film 4's elasticity, further enlarges the limit change range of objective 26 focus, reduces film 4 and objective 26 by the probability of excessively tearing the damage, further increases the definition and the discernment degree of endoscope, increases the life of endoscope simultaneously.
When the endoscope is used, the handheld part 11 is used, the endoscope head 2 is inserted into a part to be detected in a detected body through the insertion tube 1, meanwhile, the part to be detected is illuminated through the optical fiber 24, so that light rays of the part to be detected sequentially penetrate through the lens 22 and the objective lens 26 after being subjected to diffuse reflection and enter the CCD video line 27, and finally, image information of the part to be detected is displayed in real time after being processed by the control imaging display equipment; at this time, by controlling the magnetism of the electromagnet 29, the electromagnet 29 attracts the magnetic fluid in the annular cavity 28, so that the outer edge of the objective lens 26 is pulled, the thickness of the objective lens 26 is further controlled, the focal length of the objective lens 26 is finally changed, the imaging definition of the objective lens 26 is further increased, the parts to be observed at different positions can be cleaned, focused and imaged, the moving frequency of the endoscope lens 2 is reduced, the discomfort brought to the examined person in the examination process is further reduced, the definition and the identification of the endoscope are improved, and the working efficiency of the endoscope is increased; when the endoscope body 21 is pushed forward, liquid is filled into the cylinder 33 through the control device, so that the piston slides to drive the telescopic rod 32 to extend out, further the swing rod 31 is pushed to rotate, the steering sleeve 3 is driven to rotate, finally the optical fiber 24 is driven to deflect towards the peripheral direction of the endoscope body 21, the illumination area of the endoscope head 2 is increased, the visual field is further increased, and the detection personnel can conveniently and quickly position abnormal parts; when a detector finds a focus or other abnormal parts, the pushing of the endoscope head 2 is stopped, and liquid in the cylinder 33 is sucked out through the control device and the pipeline, so that the telescopic rod 32 drives the swing rod 31 and the steering sleeve 3 to rotate, light rays emitted by the optical fibers 24 are converged, the brightness of the focus or the abnormal part is increased, the focus adjustment of the objective lens 26 is matched, the observation definition and the observation accuracy are further increased, and the working efficiency of the endoscope is further increased; when the optical fiber 24 is driven by the steering sleeve 3 to deflect towards the peripheral direction of the endoscope body 21 and is matched with the endoscope body 21 to be pushed forwards, the steering sleeve 3 presses the spherical bag 13, so that the lubricant in the spherical bag 13 is extruded out through the jet holes 14, the lubricant increases the lubricity of the periphery of the endoscope body 21, the advancing resistance of the endoscope head 2 is further reduced, and the working efficiency of the endoscope is further increased; the filling amount of the transparent liquid in the cavity 41 is controlled through the filling device, so that the thickness of the cavity 41 is controlled, the adjustable range of the focal length of the objective lens 26 is further enlarged, the definition of the visual field of the endoscope is increased, the use range of the endoscope is further enlarged, the detection time is reduced, the discomfort of a detected person is further reduced, and the definition and the identification degree of the endoscope are increased; through the communication between the hose 43 and the liquid discharge hole 42, the control pipeline is integrated, the number of pipelines in the endoscope head 2 and the insertion tube 1 is reduced, the volume of the endoscope is further reduced, the endoscope can go deep into a narrow position for detection, the detection efficiency and the detection precision of the endoscope are further increased, meanwhile, the wound on a detected person is reduced, and the working efficiency of the endoscope is further increased; the heat that produces through the electro-magnet 29 during operation heats hose 43, and then heats the transparent liquid in cavity 41, increases the temperature of film 4 and objective 26, and then increases objective 26 and film 4's elasticity, further enlarges the limit change range of objective 26 focus, reduces film 4 and objective 26 by the probability of excessively tearing the damage, further increases the definition and the discernment degree of endoscope, increases the life of endoscope simultaneously.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An electronic endoscope for medical image imaging, characterized in that: comprising an insertion tube (1); the two ends of the insertion tube (1) are respectively fixedly connected with a handheld part (11) and an endoscope head (2); the endoscope head (2) is connected with an optical fiber (24) and a control imaging display device through a lead arranged in the handheld part (11) and the insertion tube (1); the endoscope head (2) comprises a tubular endoscope body (21), one end of the endoscope body (21) is fixedly connected with the insertion tube (1), and the other end of the endoscope body (21) is fixedly connected with a lens (22); an annular mounting seat (23) is fixedly connected in the mirror body (21), and a group of optical fibers (24) for illumination are uniformly distributed on the periphery of the mounting seat (23); a flexible objective lens (26) is arranged in an annular groove (25) formed in the inner periphery of the mounting seat (23), and a CCD video line (27) is arranged at one end, far away from the lens (22), of the objective lens (26); an annular cavity (28) is arranged at the position, close to the outer edge, of the objective lens (26), and magnetic fluid is filled in the annular cavity (28); the bottom of the annular groove (25) is provided with an electromagnet (29) surrounding the periphery of the objective lens (26), and the electromagnet (29) is connected with a control imaging display device through a lead; the focus of the objective lens (26) is controlled by the electromagnet (29), so that the definition and the identification degree of the endoscope are increased.
2. The electronic endoscope for medical image imaging according to claim 1, characterized in that: a steering sleeve (3) is sleeved at one end, close to the lens (22), of the optical fiber (24), an L-shaped swing rod (31) is fixedly connected to one side, close to the objective lens (26), of the periphery of the steering sleeve (3), and the corner of the swing rod (31) is hinged to the lens body (21); one end of the swing rod (31) far away from the steering sleeve (3) is hinged with a flexible telescopic rod (32), one end of the telescopic rod (32) far away from the swing rod (31) is fixedly connected with a piston, a cylinder barrel (33) is sleeved on the periphery of the piston, and the cylinder barrel (33) is fixedly connected with the mirror body (21); an oil inlet hole (34) formed in the bottom of the cylinder barrel (33) is communicated with the control device through a pipeline, and liquid for driving the piston to move is filled in the cylinder barrel (33); the sliding of the piston is controlled by the control device, so that the angle of the head part of the optical fiber (24) is controlled, and the working efficiency of the endoscope is further improved.
3. The electronic endoscope for medical image imaging according to claim 2, characterized in that: a transparent snap ring (12) is arranged between the lens (22) and the lens body (21); one end of the optical fiber (24) close to the lens (22) is positioned in the middle of the clamping ring (12); a spherical bag (13) is arranged between the steering sleeve (3) and the clamping ring (12), and lubricating liquid is filled in the spherical bag (13); the spherical bag (13) is communicated with the outside of the clamping ring (12) through a jet hole (14); the steering sleeve (3) is used for squeezing the spherical bag (13) to extrude the lubricant, so that the advancing resistance of the endoscope head (2) is reduced, and the working efficiency of the endoscope is further improved.
4. The electronic endoscope for medical image imaging according to claim 3, characterized in that: a transparent film (4) is arranged on one side of the objective lens (26), and a cavity (41) formed between the film (4) and the objective lens (26) is filled with transparent liquid; the cavity (41) is communicated with a filling device through a pipeline, and the filling device is used for controlling the filling amount of the cavity (41); the range of variable focal length of the objective lens (26) is increased by filling the cavity (41) with liquid, further increasing the clarity and identification of the endoscope.
5. The electronic endoscope for medical image imaging according to claim 4, characterized in that: one end of the cylinder barrel (33) close to the swing rod (31) is provided with a liquid discharge hole (42), and the liquid discharge hole (42) is communicated with the cavity (41) through a hose (43); the oil inlet hole (34) is communicated with a filling device through a pipeline; transparent liquid is filled into the cavity (41) through the liquid discharge hole (42), so that pipelines are reduced, the volume of the endoscope is reduced, and the working efficiency of the endoscope is further improved.
6. The electronic endoscope for medical image imaging according to claim 5, characterized in that: the hose (43) is tightly attached to the periphery of the electromagnet (29), and the heat generated by the electromagnet (29) is used for heating the transparent liquid, so that the elasticity of the film (4) is increased, and the definition and the identification degree of the endoscope are further increased.
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| CN202010154204.6A CN111297309B (en) | 2020-03-07 | 2020-03-07 | Electronic endoscope for medical imaging |
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| CN202010154204.6A CN111297309B (en) | 2020-03-07 | 2020-03-07 | Electronic endoscope for medical imaging |
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