CN110522400B - Monocular electronic hard tube endoscope and manufacturing method thereof - Google Patents
Monocular electronic hard tube endoscope and manufacturing method thereof Download PDFInfo
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- CN110522400B CN110522400B CN201910697847.2A CN201910697847A CN110522400B CN 110522400 B CN110522400 B CN 110522400B CN 201910697847 A CN201910697847 A CN 201910697847A CN 110522400 B CN110522400 B CN 110522400B
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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
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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
- A61B1/06—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
- A61B1/0661—Endoscope light sources
- A61B1/0676—Endoscope light sources at distal tip of an endoscope
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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
Abstract
The embodiment of the invention discloses a monocular electronic hard tube endoscope and a manufacturing method thereof, and relates to the technical field of medical instruments. The monocular electronic hard tube endoscope comprises a tube body, wherein an image sensor is arranged at the first end of the tube body, an illumination channel is axially arranged on the tube body, the illumination channel is at least provided with an opening located at the first end of the tube body, and the opening is located on the side portion of the image sensor. Because the image sensor is arranged at the first end of the tube body, namely the front end of the tube body in the application process in general, the projection path which a target object passes before entering the image sensor for imaging can be shortened, thereby reducing the color rendering performance reduction, the deformation of the periphery of an image, the reduction of the visible angle and the image noise which are possibly generated in the imaging process to a certain extent. The invention is suitable for medical examination and operation.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a monocular electronic hard tube endoscope and a manufacturing method thereof.
Background
The endoscope is a medical apparatus which is commonly used in medicine and can be sent into a human body cavity to examine the pathological changes of human organs, and the pathological changes can be examined and diagnosed visually by using the endoscope.
The arrangement mode of the existing endoscope inserted into a conduit and an optical imaging element in a human body causes that target objects such as human organs and the like can enter the optical imaging element for imaging only through a far projection path, and because the target objects need to be projected for imaging in a long distance, image noise can be inevitably generated in the imaging process.
Disclosure of Invention
In view of this, embodiments of the present invention provide a monocular electronic hard tube endoscope and a method for manufacturing the same, which can shorten a projection path through which a target object passes before entering an image sensor for imaging, thereby reducing, to a certain extent, a color rendering performance degradation, a deformation around an image, a reduction in a visible angle, and image noise that may occur during an imaging process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a monocular electron hard tube endoscope, includes the body the first end of body is equipped with image sensor, be equipped with the illumination passageway on the body axial, the illumination passageway is equipped with the opening that is located the first end of body at least, just the opening is located the image sensor lateral part.
Preferably, the nested cylinder seat that has in the body, the cylinder seat, the tip that is located the body first end are equipped with the open slot, image sensor install in the open slot bottom is equipped with extremely the through-hole of another tip of cylinder seat, wear to be equipped with the cable in the through-hole, cable one end connect in image sensor.
Preferably, the intersection line of open slot and cylinder seat includes first rectangle, second rectangle, first circular arc and second circular arc, first rectangle and second rectangle are symmetrical about the first axle cross-section of cylinder seat, first circular arc and second circular arc are symmetrical about the second axle cross-section of cylinder seat, first axle cross-section is perpendicular with the second axle cross-section, the base of first rectangle, the base of first circular arc, second rectangle and second circular arc connect gradually and constitute a confined radius head rectangle.
Preferably, a first channel is further provided in the tube body along the axial direction of the tube body.
Preferably, a first channel and a second channel are further arranged in the tube body along the axial direction of the tube body.
Preferably, the image sensor is located at the center of the cross section of the pipe body; the first passage is eccentrically disposed with respect to an axis of the pipe body.
Preferably, the image sensor is located at the cross-sectional center position of the pipe body; the first channel and the second channel are eccentrically arranged relative to the axis of the tube body, and the first channel and the second channel are adjacently arranged, or the first channel and the second channel are respectively arranged on two sides of the image sensor.
Preferably, the pipe body comprises a first sleeve and a second sleeve, the second sleeve is sleeved outside the first sleeve, and a gap is formed between the first sleeve and the second sleeve; the annular space between the outer side surface of the first sleeve and the inner side surface of the second sleeve forms the illumination channel, and the image sensor is arranged at the first end of the first sleeve;
alternatively, the first and second liquid crystal display panels may be,
a first light path channel and a second light path channel are arranged in parallel in the tube body along the axial direction of the tube body, the first light path channel and the second light path channel are respectively arranged on two sides of the image sensor, and the first light path channel and the second light path channel form the illumination channel.
Preferably, a light guide medium is arranged in the illumination channel.
Preferably, the light guide medium is connected with a first cold light source connector, a cold light source is connected to the first cold light source connector, and the first cold light source connector is located at or close to the second end of the tube body;
the light guide medium is an optical fiber; alternatively, the first and second electrodes may be,
the light guide medium is a light guide plate; alternatively, the first and second electrodes may be,
the light guide medium is a light guide ink layer sprayed in the light guide channel.
Preferably, the image sensor is electrically connected to an optical processing device, and an output end of the optical processing device is connected to a 3D stereoscopic display.
Preferably, the diameter of the pipe body is more than 0 and less than or equal to 11mm.
Preferably, the image sensor is located in an opening of the illumination channel.
On the other hand, the embodiment of the invention provides a method for manufacturing a binocular electronic hard tube endoscope, which is applied to manufacturing the endoscope of any one of the first aspect, and the method comprises the following steps:
cutting a section of stainless steel pipe or hard plastic pipe with a preset length to manufacture a pipe body; the outer diameter of the stainless steel pipe or the hard plastic pipe is more than 0 and less than or equal to 11mm;
bonding an image sensor at one end of the tube body, connecting a communication cable on the image sensor, and leading the communication cable to the other end of the tube body along the axial direction of the tube body to be connected with an optical processing device;
an illumination channel is arranged in the axial direction of the tube body; and a light outlet is formed in the position, located at the first end of the tube body, of the lighting channel, and the light outlet is located on the side of the image sensor.
The monocular electronic hard tube endoscope comprises a tube body, wherein an image sensor is arranged at a first end of the tube body, an illumination channel is arranged on the tube body in the axial direction, the illumination channel is at least provided with an opening located at the first end of the tube body, and the opening is located on the side portion of the image sensor. Because the image sensor is arranged at the first end of the tube body, namely the front end of the tube body in the application process in general, the projection path which the target object passes before entering the image sensor for imaging can be shortened, and therefore, the color rendering performance reduction, the deformation of the periphery of the image, the reduction of the visual angle and the image noise which are possibly generated in the imaging process can be reduced to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
FIG. 1 is a schematic structural diagram of a monocular electronic hard tube endoscope according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A partial cross-sectional view taken along the axis A-A of FIG. 1;
FIG. 3 is a schematic view of a first end portion of a monocular electronic hard tube endoscope according to an embodiment of the present invention;
FIG. 4 is a schematic view of a first end portion of another embodiment of a monocular electronic hard tube endoscope of the present invention;
FIG. 5 is a schematic view of a first end portion of a monocular electronic hard tube endoscope according to yet another embodiment of the present invention;
fig. 6 is a front view of the cylinder block of fig. 1 according to an embodiment.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
To help the public understand the technical scheme and the technical effect of the invention, the current endoscope is briefly introduced as follows: the endoscope comprises a catheter and an optical imaging element, such as an image sensor, wherein the optical imaging element is generally arranged at the tail end of the catheter, so that when the endoscope is used for checking whether internal organs of a human body have lesions, a target object such as the organ of the human body can enter the optical imaging element for imaging through a far projection path, and image noise is inevitably generated in the imaging process because the target object needs to be subjected to long-distance projection imaging.
The monocular electronic hard tube endoscope provided by the embodiment of the invention is suitable for medical examination and operation. Referring to fig. 1 to 4, the monocular electronic hard tube endoscope includes: the tube body is equipped with image sensor 2 in the first end of tube body, be equipped with illumination passageway 3 on the tube body axial, illumination passageway 3 is equipped with the opening that is located the first end of tube body at least, just the opening is located image sensor 2 lateral parts.
The first end of the tube body is the end of the tube body which is inserted into a human body firstly during work, namely the front end during application, and the tube body is made of stainless steel. The image sensor 2 is used for shooting images of an examination or operation part and organs or tissues nearby the examination or operation part and outputting the images; the image sensor 2 is an electronic CMOS image sensor, and the specification size of the image sensor is larger than 0 and less than or equal to 1/18 inch; specifically, the image sensor 2 is electrically connected to an optical processing device 4, and an output end of the optical processing device 4 is connected to a 3D stereoscopic display 5; the image sensor 2 sends the shot image to the optical processing device 4, and the optical processing device 4 processes the image and outputs the processed image to the 3D stereoscopic display 5 for displaying so that an operator can observe the inside of the human body. The illumination channel 3 is used for providing illumination for image shooting of the image sensor 2, and the illumination channel 3 can be arranged on the whole length of the tube body or on the length of a part from any position to the first end on the length of the tube body.
The monocular electronic hard tube endoscope provided by the embodiment of the invention comprises a tube body, wherein an image sensor 2 is arranged at the first end of the tube body, an illumination channel 3 is arranged on the tube body in the axial direction, the illumination channel 3 is at least provided with an opening 31 positioned at the first end of the tube body, and the opening 31 is positioned at the side part of the image sensor 2. Since the image sensor 2 is disposed at the first end of the tube, that is, the front end of the tube in the application process, the projection path of the target object before entering the image sensor 2 for imaging can be shortened, and therefore, the color rendering performance reduction, the deformation of the periphery of the image, the reduction of the viewing angle and the image noise which may be generated in the imaging process can be reduced to a certain extent.
As shown in fig. 3 and 5, the image sensor 2 may also be located in the opening of the illumination channel 3.
Referring to fig. 1, 2 and 6, in this embodiment, as an optional embodiment, a cylinder base 6 is nested in the tube, an open slot 7 is formed in an end portion of the cylinder base 6 located at the first end of the tube, the image sensor 2 is installed in the open slot 7, a through hole is formed in the bottom of the open slot 7 and extends to the other end of the cylinder base 6, a cable 9 is inserted into the through hole, and one end of the cable 9 is connected to the image sensor 2. Thus, a specific technical scheme for fixedly mounting the image sensor 2 is provided, and the image sensor 2 can be protected by mounting the image sensor 2 in the opening groove 7 of the cylindrical seat 6.
In this embodiment, specifically, a transparent cover or a protective cover with a light exit hole may be further disposed at an opening end of the open slot 7, and a gap is disposed between the image sensor 2 and the transparent cover or the protective cover with the light exit hole; therefore, the monocular electronic hard tube endoscope can be ensured to be used, and no matter the tube body is pushed into the depth, the condition that the end part of the image sensor 2 is attached to the organ or tissue of the human body to influence the clear acquisition of the image can not occur.
Wherein, it can be understood that the other end of the cable 9 can be connected with an optical processing device 4, and the optical processing device 4 is used for processing the collected image and outputting the processed image to the display 5; or the cable 9 may be directly connected to the display 5 for output.
Referring to fig. 1, 2 and 6, in another embodiment, the intersecting line of the open slot 7 and the cylinder base 6 includes a first rectangle, a second rectangle, a first arc and a second arc, the first rectangle and the second rectangle are symmetrical about a first axial section of the cylinder base 6, the first arc and the second arc are symmetrical about a second axial section of the cylinder base 6, the first axial section is perpendicular to the second axial section, and the bottom edge of the first rectangle, the bottom edge of the first arc, the bottom edge of the second rectangle and the second arc are connected in sequence to form a closed inverted-head rectangle.
The open slot 7 is formed by cutting one end of the cylindrical seat 6, and the open slot 7 comprises a plurality of surfaces which are respectively two symmetrical rectangular surfaces and a fillet rectangular surface; the rounded rectangular surfaces are positioned between the two symmetrical rectangular surfaces to form the open slot 7. In one embodiment, the specification dimensions of the cylinder block are: height 7mm, diameter 2.7mm, opening groove depth 4mm, width between two rectangular surfaces of opening groove
Referring to fig. 3 and 4, in an alternative embodiment, a first channel 15 is further provided in the tube body along the axial direction of the tube body, and the first channel 15 is used as an access channel for medical instruments, such as forceps, a sampler, etc., so that the medical instruments can be conveniently entered into the human body by means of the first channel 15, and the pain of opening an instrument insertion channel on the body of the patient is avoided.
In one embodiment, the sampler comprises a needle, a rigid connecting pipe and a bag, wherein the needle is positioned at the first end of the pipe body, the needle is connected to one end of the rigid connecting pipe, and the bag is connected to the other end of the rigid connecting pipe.
Specifically, the image sensor 2 is located at the center of the cross section of the pipe body; the first passage 15 is arranged eccentrically with respect to the axis of the tubular body.
Referring to fig. 3 and 4, in an alternative embodiment, a second channel 16 is further provided in the tube body along the axial direction of the tube body, and the second channel 16 is used as a channel for injecting liquid or gas to clean the examined part of the human body, so that when foreign matters are attached to the examined part of the human body and cannot be seen clearly, the cleaning liquid can be flushed into the examined part of the human body through the second channel 16 to clean the examined part, so as to acquire a clear and effective image of the examined part.
Referring to fig. 3, in the present embodiment, specifically, the image sensor 2 is located at the cross-sectional center of the pipe body; the first passage 15 and the second passage 16 are eccentrically disposed with respect to the axis of the pipe body, and the first passage and the second passage are adjacently disposed.
Referring to fig. 4, in another embodiment, the image sensor 2 is located at the center of the cross section of the pipe body; the first channel 15 and the second channel 16 are eccentrically arranged relative to the axis of the tube body, and the first channel and the second channel are respectively arranged on two sides of the image sensor.
Specifically, the first channel 15 and the second channel 16 are disposed symmetrically with respect to the optical axis of the image sensor.
In addition, it should be noted that, in different application scenarios, the outer diameter of the pipe body is different in size, where the size unit of the outer diameter of the pipe body is mm, and table 1 lists the size specifications of the outer diameter of the pipe body in several specific application scenarios, and may of course be set as needed.
TABLE 1
Referring to fig. 1, in a further embodiment, the pipe body comprises a first sleeve 1 and a second sleeve 10, the second sleeve 10 is sleeved outside the first sleeve 1, and a gap is formed between the first sleeve 1 and the second sleeve 10; the annular space between the outer side of the first sleeve 1 and the inner side of the second sleeve 10 forms the illumination channel, and the image sensor is arranged at the first end of the first sleeve 1.
In this embodiment, an annular space or gap is formed between the first sleeve 1 and the second sleeve 10 as the illumination channel 3, and the image sensor 2 is located at the first end of the first sleeve, so that a ring of annular illumination light is formed around the image sensor 2, and the lighting effect is more uniform than that of the existing point light source illumination channel 3, thereby being beneficial to improving the image shooting quality.
Wherein, the second sleeve is made of stainless steel, the outer diameter of the second sleeve can be processed into different diameters of 3mm, 4mm, 10mm and the like, and the wall thickness is more than 0 and less than or equal to 0.4mm.
In different application scenarios, the outer diameters of the second sleeves are different, and when the pipe body includes the first sleeve and the second sleeve, the outer diameters of the pipe bodies listed in table 1 are the outer diameter of the second sleeve in this embodiment, which can specifically refer to the size specifications of the outer diameters of the second sleeves in several specific application scenarios listed in table 1, and of course, the sizes can also be set as needed.
In another alternative embodiment, a first optical path 32 and a second optical path 33 are disposed in parallel along the axial direction of the tube, and the first optical path and the second optical path are disposed on two sides of the image sensor, respectively, and form the illumination channel.
In particular, a light guide medium is provided in the illumination channel 3, and the light guide medium is used for light conduction. The light guide medium is used for conducting the illumination light, so that the loss in the light conduction process can be reduced, and the illumination light required by image shooting is ensured.
In this embodiment, as an optional embodiment, the light guide medium is connected to a first cold light source connector, the first cold light source connector is connected to a cold light source, and the first cold light source connector is located at or near the second end of the tube body. Therefore, the cold light source is arranged at the second end of the tube body, namely the tail end in application, and is connected to the light guide medium through the cold light source connector, so that on one hand, light can be transmitted to the front end of the tube body through the light guide medium to provide illumination light for image shooting; on the other hand, the cold light source is arranged at the tail end of the tube body, so that the tube body can be made thinner, and the size of the structure of the monocular electronic hard tube endoscope which extends into the human body part is reduced.
Referring to fig. 1, in the present embodiment, specifically, a splitter 12 is connected to the second end, i.e. the end when the second bushing 10 is applied, it should be noted that the splitter is used for separating a plurality of lines passing through the splitter, so as to avoid line entanglement, and is not a concept of a splitter used for separating 8 lines in a network line into two groups to transmit data in the field of network communication technology. The splitter comprises a first splitting port 13 and a second splitting port 14, the tail end of the light guide medium penetrates through the first splitting port 13 to be connected into the cold light source 5, and the other end of the cable 9 is connected to the optical processing device 4 through the second splitting port 14. In this embodiment, the light guide medium may be an optical fiber; or, the light guide medium is a light guide plate; or, the light guide medium is a light guide ink layer sprayed in the light guide channel.
According to the monocular electronic hard tube endoscope provided by the embodiment of the invention, the tube body part is fine in structure, so that the endoscope can be suitable for examination and diagnosis of a small cavity in a human body; compared with the mode of arranging the image sensor 2 at the tail end in the prior art, the front end of the tube body is closer to the shooting target, so that the transmission distance of light rays entering the photosensitive surface of the image sensor is shortened, the problems of color rendering performance reduction, image periphery deformation, visual angle reduction and image noise increase which are possibly generated in the imaging process can be reduced, and the task amount of subsequent image processing can be reduced.
Example two
The method for manufacturing the monocular electronic hard tube endoscope provided by the embodiment of the invention is applied to manufacturing the monocular electronic hard tube endoscope described in any one of the embodiments, and comprises the following steps:
cutting a section of stainless steel pipe or hard plastic pipe with a preset length to manufacture a pipe body; the diameter of the stainless steel pipe or the hard plastic pipe is more than 0 and less than or equal to 11mm.
The image sensor 2 is adhered to one end of the pipe body, the communication cable 9 is connected to the image sensor 2, and the communication cable 9 is led to the other end of the pipe body along the axial direction of the pipe body to be connected with the optical processing device 4.
An illumination channel 3 is arranged in the axial direction of the tube body; and a light outlet is formed in the position, located at the first end of the tube body, of the lighting channel 3 at least and is located on the side part of the image sensor 2.
The monocular electronic hard tube endoscope manufactured by the method for manufacturing the monocular electronic hard tube endoscope provided by the embodiment can shorten the projection path through which the target object passes before entering the image sensor 2 for imaging because the image sensor 2 is arranged at the first end of the tube body, namely the front end of the tube body in the general sense during application, thereby reducing the color rendering performance reduction, the deformation of the periphery of the image, the reduction of the visible angle and the image noise which are possibly generated in the imaging process to a certain extent; further, the task amount of subsequent image processing can be reduced.
In one embodiment of the invention, the image sensor 2 is a CMOS image sensor.
In another embodiment of the present invention, the tube body comprises a first sleeve and a second sleeve, the attaching the image sensor 2 to one end of the tube body, and connecting the communication cable 9 to the image sensor 2, the leading the communication cable 9 to the other end of the tube body along the axial direction of the tube body to connect with the optical processing device 4 comprises:
taking a cylindrical bar material and cutting the cylindrical bar material into a plurality of sections of cylinders with preset lengths;
clamping a section of the cylinder in a fixture of a milling machine, and milling an open slot 7 at one end of the cylinder;
after an open slot 7 with a preset specification and size is milled, placing a cylinder in a fixture of a drilling machine, and drilling a through hole at the bottom of the open slot 7 to the other end of the cylinder to form a cylinder seat 6;
taking a cylindrical seat 6, aligning the optical axis of the image sensor 2 with the central axis of the through hole, and placing the cylindrical seat in an open slot 7; the through hole is used for penetrating through a communication cable 9 of the image sensor 2;
connecting the communication cable 9 of the image sensor 2 to the optical processing device 4 axially along the cylindrical seat 6;
sleeving a first sleeve on the circumference of the cylindrical seat 6, and adhering and connecting the cylindrical seat 6 and the first sleeve;
and sleeving a second sleeve on the first sleeve, wherein an annular lighting space is formed between the inner wall of the second sleeve and the outer wall of the first sleeve.
The method of the embodiment of the present invention is used for manufacturing the monocular electronic hard tube endoscope of the foregoing embodiment, and based on the monocular electronic hard tube endoscope structure of the foregoing embodiment, other method embodiments may also be derived, and are also within the scope disclosed in the present embodiment, and therefore, details are not repeated here.
It is noted that, herein, the terms "upper", "lower", and the like, indicate orientations or positional relationships and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. Relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The use of the phrase "including a" does not exclude the presence of other, identical elements in a process, method, article, or apparatus that comprises the same element, unless the language expressly indicates otherwise. As will be appreciated by one of ordinary skill in the art, the situation may be specific.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The manufacturing method of the monocular electronic hard tube endoscope is characterized by comprising a tube body, wherein an image sensor is arranged at a first end of the tube body, the image sensor is a CMOS image sensor, an illumination channel is arranged in the axial direction of the tube body, the illumination channel is at least provided with an opening positioned at the first end of the tube body, and the opening is positioned at the side part of the image sensor;
a cylindrical seat is nested in the tube body, an open slot is formed in the end part, located at the first end of the tube body, of the cylindrical seat, the image sensor is installed in the open slot, a through hole is formed in the bottom of the open slot and extends to the other end of the cylindrical seat, a cable penetrates through the through hole, and one end of the cable is connected to the image sensor;
the image sensor is positioned at the center of the cross section of the tube body;
the open slot is formed by cutting one end of the cylindrical seat, and comprises a plurality of surfaces, namely two symmetrical rectangular surfaces and a fillet rectangular surface; the fillet rectangular surface is positioned between the two symmetrical rectangular surfaces to form the open slot;
the specification and the size of the cylinder seat are as follows: the height is 7mm, the diameter is 2.7mm, the depth of the opening groove is 4mm, and the width between two rectangular surfaces of the opening groove is 1.05 +/-0.03 mm;
a transparent cover or a protective cover with a light outlet hole is arranged at the opening end of the open slot, and a gap is arranged between the image sensor and the transparent cover or the protective cover with the light outlet hole, so that the condition that the clear collection of images is influenced because the end part of the image sensor is attached to organs or tissues of a human body no matter the tube body is pushed to the depth in the using process of the monocular electronic hard tube endoscope is ensured;
a first channel used as a sampler inlet and outlet channel is further arranged in the tube body along the axial direction of the tube body, the sampler comprises a needle head, a hard connecting tube and a bag, the needle head is positioned at the first end of the tube body, the needle head is connected to one end of the hard connecting tube, and the bag is connected to the other end of the hard connecting tube;
a second channel is further arranged in the tube body along the axial direction of the tube body and used as a channel for injecting liquid or gas, and the image sensor is positioned at the center of the cross section of the tube body; the first channel and the second channel are eccentrically arranged relative to the axis of the pipe body, and the first channel and the second channel are adjacently arranged;
the image sensor is an electronic CMOS image sensor, and the specification size of the image sensor is larger than 0 and less than or equal to 1/18 inch;
the pipe body comprises a first sleeve and a second sleeve, the second sleeve is sleeved outside the first sleeve, and a gap is formed between the first sleeve and the second sleeve; the annular space between the outer side surface of the first sleeve and the inner side surface of the second sleeve forms the illumination channel, and the image sensor is arranged at the first end of the first sleeve;
the outer diameter of the second sleeve is 4mm, the wall thickness of the second sleeve is more than 0 and less than or equal to 0.4mm;
the second end of the second sleeve is connected with a wire divider, and the wire divider is used for separating a plurality of passing wires to avoid the wires from winding;
the method comprises the following steps:
cutting a section of stainless steel pipe or hard plastic pipe with a preset length to manufacture the pipe body; the outer diameter of the stainless steel pipe or the hard plastic pipe is more than 0 and less than or equal to 11mm;
bonding an image sensor at one end of the tube body, connecting a communication cable on the image sensor, and leading the communication cable to the other end of the tube body along the axial direction of the tube body to be connected with an optical processing device;
an illumination channel is arranged in the axial direction of the tube body; at least the lighting channel and the first end of the tube body are provided with a light outlet which is positioned at the side part of the image sensor
Bonding image sensor in body one end to connect the communication cable on image sensor, cause the communication cable along the body axial is connected including with optical processing device at the body other end:
taking a cylindrical bar material and cutting the cylindrical bar material into a plurality of sections of cylinders with preset lengths;
clamping a section of the cylinder in a clamp of a milling machine, and milling an open slot at one end of the cylinder;
after an open slot with a preset specification and size is milled, placing a cylinder in a fixture of a drilling machine, and drilling a through hole at the bottom of the open slot to the other end of the cylinder to form a cylinder seat;
taking a cylindrical seat, aligning the optical axis of the image sensor to the central axis of the through hole, and placing the cylindrical seat in the open slot; the through hole is used for penetrating through a communication cable of the image sensor;
connecting a communication cable of the image sensor to an optical processing device along the axial direction of the cylindrical seat;
sleeving a first sleeve on the periphery of the cylindrical seat, and bonding and connecting the cylindrical seat and the first sleeve;
and sleeving a second sleeve on the first sleeve, wherein an annular lighting space is formed between the inner wall of the second sleeve and the outer wall of the first sleeve.
2. The method for manufacturing a monocular electronic hard tube endoscope according to claim 1, wherein a cross-section line of the open slot and the cylinder base comprises a first rectangle, a second rectangle, a first circular arc and a second circular arc, the first rectangle and the second rectangle are symmetrical about a first axial cross-section of the cylinder base, the first circular arc and the second circular arc are symmetrical about a second axial cross-section of the cylinder base, the first axial cross-section is perpendicular to the second axial cross-section, and a bottom edge of the first rectangle, a bottom edge of the first circular arc, a bottom edge of the second rectangle and the second circular arc are connected in sequence to form a closed reverse-round-head rectangle.
3. The method of claim 1, wherein 5 a light guide medium is disposed in the illumination channel.
4. The method for manufacturing a monocular electronic hard tube endoscope according to claim 3, wherein said light guide medium is connected with a first cold light source connector, a cold light source is connected to said first cold light source connector, and said first cold light source connector is located at or near said second end of said tube body;
the light guide medium is an optical fiber; alternatively, the first and second electrodes may be,
the light guide medium is a light guide plate; alternatively, the first and second electrodes may be,
the light guide medium is a light guide ink layer sprayed in the light guide channel.
5. The method of claim 1, wherein the image sensor is electrically connected to an optical processing device, and a 3D stereoscopic display is connected to an output end of the optical processing device.
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| US5634881A (en) * | 1995-10-20 | 1997-06-03 | United States Surgical Corporation | Laparoscope |
| JPH09265047A (en) * | 1996-03-27 | 1997-10-07 | Matsushita Electric Ind Co Ltd | Electronic endoscope device |
| US10595710B2 (en) * | 2001-10-19 | 2020-03-24 | Visionscope Technologies Llc | Portable imaging system employing a miniature endoscope |
| US7699773B2 (en) * | 2003-03-06 | 2010-04-20 | Precision Optics Corporation | Repairable endoscope |
| US20100094082A1 (en) * | 2008-10-09 | 2010-04-15 | Jay Iinuma | Medical examining device with an angularly offset fiber optic channel |
| FR2945723B1 (en) * | 2009-05-19 | 2012-06-15 | Axess Vision Technology | MEDICAL INSTRUMENT WITH MULTIPLE FUNCTIONS FOR ENDOSCOPE. |
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| US10582832B2 (en) * | 2013-01-17 | 2020-03-10 | Stryker Corporation | System for altering functions of at least one surgical device dependent upon information saved in an endoscope related to the endoscope |
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| CN203417183U (en) * | 2013-08-12 | 2014-02-05 | 刘岚 | Endoscope |
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