CN114869202A - Endoscope calibration device and calibration method - Google Patents

Abstract

The invention relates to an endoscope calibration device and a calibration method, which comprises a positioning device, an adjusting device and an imaging device, wherein the positioning device can be used for fixing a handle of an endoscope and/or a tube of the endoscope, the adjusting device is provided with a rotation adjusting part, the rotation adjusting part can be used for rotating a lens of the endoscope, the imaging device comprises a light source and an imaging area, the lens is provided with a light reflecting area, the light source can emit light to the light reflecting area and form a reflected light spot on the imaging area through refraction of the light reflecting area, and a calibration mark used for being matched with the reflected light spot in a calibration mode is arranged in the imaging area. In the calibration device and the calibration method of the endoscope, a non-contact optical detection method is adopted, a light reflection region can be directly formed based on a partial region of the lens of the endoscope, the lens direction can be judged by matching with an imaging device, and the direction consistency of the lens direction of the endoscope and the direction of a handle of the endoscope can be detected.

Description

Endoscope calibration device and calibration method

Technical Field

The invention relates to the technical field of medical instruments, in particular to a calibration device and a calibration method of an endoscope.

Background

The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software, and is composed of an image sensor, an optical lens, a light source illumination device, a mechanical device and other structures, the endoscope can enter the stomach through the oral cavity or enter the body through other natural pores, and then the endoscope can be used for seeing pathological changes which cannot be displayed by X rays, so that the endoscope is very useful for diagnosis and treatment activities of doctors, for example, the doctors can observe ulcers or tumors in the stomach by means of the endoscope, and an optimal treatment scheme is made according to the pathological changes.

If the handle and the lens of the endoscope are not installed well, the direction of the lens is easy to deflect, and the deflection of the lens can lead a doctor to feel that the sense organs of the hand holding the handle and the eyes are not uniform in the using process, so that the operation comfort of the doctor is influenced. Therefore, when the endoscope is delivered from a factory, the direction consistency of the lens and the handle needs to be calibrated, and a doctor is guaranteed to have no sense of incompatibility in the process of using the endoscope.

In the prior art, the direction consistency calibration of the lens and the handle is usually to print a laser mark on a lens tube of an endoscope, and the laser mark is aligned with a pin hole on the handle to realize the direction consistency adjustment of the lens and the handle.

Disclosure of Invention

In view of the above, it is necessary to provide a calibration device and a calibration method for an endoscope, which address the above-mentioned technical problems.

The invention provides a calibration device for an endoscope, comprising:

positioning means which can be used to fix a handle of an endoscope and/or a scope tube of an endoscope;

an adjustment device having a rotational adjustment portion that can be used to rotate a lens of an endoscope;

the imaging device comprises a light source and an imaging area, wherein the lens is provided with a light reflecting area, the light source can emit light to the light reflecting area, a reflected light spot is formed in the imaging area through refraction of the light reflecting area, and the imaging area is provided with a calibration mark for calibration matching with the reflected light spot.

In one embodiment, the calibration device comprises:

a guide base on which the positioning device, the adjusting device, and the imaging device are disposed along a reference straight line.

In one embodiment, the guide base is provided with a linear rail, the linear rail constitutes the reference line, and at least one of the positioning device, the adjusting device and the imaging device is movably mounted on the guide base along the linear rail.

In one embodiment, the rotation regulating portion includes:

the rotating piece is provided with a fixing hole, and the fixing hole can be used for fixing a lens of the endoscope;

the driving piece is in driving connection with the rotating piece.

In one embodiment, the rotating member is a worm gear and the driving member is a worm.

In one embodiment, the positioning device comprises a first base, wherein the first base is provided with a first groove which can be used for fixing a handle of an endoscope and/or a tube of the endoscope; and/or the presence of a gas in the gas,

the adjusting device comprises a second base, a second groove is formed in the second base, and the rotating adjusting portion is arranged in the second groove.

In one embodiment, the imaging device has a calibration plate, a surface of which constitutes the imaging area; and/or the presence of a gas in the gas,

the imaging region can change position and/or angle relative to the light source.

In one embodiment, the light reflecting region is formed by a protective glass of a lens of the endoscope.

The invention also provides a calibration method of the endoscope, which is based on the calibration device and comprises the following steps:

fixing a handle and/or a scope tube of an endoscope on the positioning device;

and rotating the lens of the endoscope relative to the handle of the endoscope and/or the tube of the endoscope by using the rotating adjusting part of the adjusting device to enable the calibration mark on the imaging device to be aligned and matched with the reflected light spot.

The invention also provides a calibration method of the endoscope, which comprises the following steps based on the calibration device:

fixing a handle of an endoscope on the positioning device;

and rotating the tube of the endoscope and/or the lens of the endoscope relative to the handle of the endoscope by using the rotating adjusting part of the adjusting device to enable the calibration mark on the imaging device to be aligned and matched with the reflected light spot.

In the calibration device and the calibration method of the endoscope, a non-contact optical detection method is adopted, a light reflection region can be directly formed based on a partial region of the lens of the endoscope, the judgment of the lens direction can be realized by matching with an imaging device, and the consistency of the lens direction of the endoscope and the direction of a handle of the endoscope can be further detected.

Drawings

FIG. 1 is a schematic structural diagram of a calibration device provided in an embodiment of the present invention;

FIG. 2 is a partial schematic structural view of the calibration device shown in FIG. 1;

FIG. 3 is a schematic structural view of a rotation adjusting portion provided in an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a use state of a calibration apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of a lens of an endoscope provided in one embodiment of the present invention;

FIG. 6 is a schematic view of alignment matching of a reflected light spot and an alignment mark provided in an embodiment of the present invention;

FIG. 7 is a schematic view of the endoscope in a configuration in which the reflected light spot is aligned with the alignment marks as shown in FIG. 6;

FIG. 8 is an enlarged view of the endoscope shown in FIG. 7;

FIG. 9 is a schematic illustration of a calibration match of a reflected light spot and a calibration mark provided in an embodiment of the present invention;

FIG. 10 is a schematic view of the endoscope in a configuration in which the reflected light spot is aligned with the alignment marks as shown in FIG. 9;

FIG. 11 is an enlarged view of the endoscope shown in FIG. 10;

fig. 12 is a schematic structural diagram of an adjusting seat provided in an embodiment of the present invention.

Reference numerals:

1000. an endoscope; 2000. a positioning device; 3000. an adjusting device; 4000. an imaging device; 5000. a guide base;

1100. a handle; 1200. a mirror tube; 1300. a lens; 1400. protecting glass; 1500. an adjusting seat;

1410. a light reflecting region;

1510. an adjustment hole; 1520. adjusting the screw;

2100. a first base; 2110. a first groove;

3100. a second base; 3200. a rotation adjusting part;

3110. a second groove; 3210. a rotating member; 3220. a drive member;

4100. a light source; 4200. calibrating the plate;

4110. emitting light; 4120. reflecting the light spots; 4210. an imaging region; 4220. a calibration mark;

5100. a linear track.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

To more clearly describe the structure of the endoscope 1000 and the alignment device, the term "distal" is defined herein to mean the end that is distal from the operator during a surgical procedure, and the term "proximal" is defined to mean the end that is proximal to the operator during a surgical procedure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Generally, the endoscope 1000 includes a handle 1100, a scope tube 1200 and a lens 1300, the handle 1100 of the endoscope 1000 can be held by an operator to facilitate the operation of the endoscope 1000, the proximal end of the scope tube 1200 of the endoscope 1000 is connected to the handle 1100 of the endoscope 1000, the lens 1300 of the endoscope 1000 is disposed at the distal end of the scope tube 1200 of the endoscope 1000, and the following technical solutions are adopted in the present application in order to ensure that directional coincidence can be formed between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 (generally, the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 have coincidence in circumferential angles).

Referring to fig. 1 to 12, an embodiment of the present invention provides an alignment apparatus for an endoscope 1000, the alignment apparatus includes a positioning device 2000, an adjusting device 3000 and an imaging device 4000, the positioning device 2000 can be used to fix a handle 1100 of the endoscope 1000 and also fix a tube 1200 of the endoscope 1000, or the positioning device 2000 can also fix the handle 1100 of the endoscope 1000 and the tube 1200 of the endoscope 1000 at the same time, and an operator can select and adjust a specific fixing part of the endoscope 1000 under different adjustment requirements. In cooperation with the adjustment device 3000 having a rotation adjustment portion 3200, the rotation adjustment portion 3200 can be used for rotating the lens 1300 of the endoscope 1000, and the imaging device 4000 includes a light source 4100 and an imaging region 4210, the lens 1300 generally has a light reflecting region 1410 thereon, so that during a consistent adjustment of the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000, the light source 4100 can be used for emitting light rays 4110 towards the light reflecting region 1410, the emitted light rays 4110 can be refracted by the light reflecting region 1410 to form a reflected light spot 4120 in the imaging region 4210, wherein the imaging region 4210 has an alignment mark 4220 therein for alignment matching with the reflected light spot 4120, and after the reflected light spot 4120 is projected in the imaging region 4210, an operator can use the alignment mark 4220 to form alignment matching with the reflected light spot 4120, in short, the comparison of the alignment mark 4220 with the reflected light spot 4120 is used for judging the handle of the endoscope 1000 and the handle 1300 of the endoscope 1000 Whether there is a deviation in direction between the lenses 1300.

If it is determined that there is a directional deviation between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000, the operator may rotate the lens 1300 of the endoscope 1000 by using the rotation adjustment portion 3200 of the adjustment device 3000, at which time the handle 1100 of the endoscope 1000 or the tube 1200 of the endoscope 1000 is fixed by the positioning device 2000, and therefore, the rotation of the lens 1300 of the endoscope 1000 by the rotation adjustment portion 3200 of the adjustment device 3000 is a rotation relative to the handle 1100 of the endoscope 1000, or the rotation of the lens 1300 of the endoscope 1000 by the rotation adjustment portion 3200 of the adjustment device 3000 is a rotation relative to the tube 1200 of the endoscope 1000, and as the operator rotates the lens 1300 of the endoscope 1000 by using the rotation adjustment portion 3200 of the adjustment device 3000, the reflected light spot 4120 projected in the imaging area 4210 is also rotated with the rotation of the lens 1300 of the endoscope 1000 until the reflected light spot 4120 forms a predetermined matching state with the alignment mark 4220 in the imaging area 4210, at this time, it is verified that the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 are aligned in the same direction, and the calibration of the endoscope 1000 is completed.

The positioning device 2000, the adjusting device 3000 and the imaging device 4000 respectively perform the functions of fixing the handle 1100 of the endoscope 1000 and the tube 1200 of the endoscope 1000, rotating the lens 1300 of the endoscope 1000, and imaging the reflective region 1410 on the lens 1300, so that the positioning device 2000, the adjusting device 3000 and the imaging device 4000 generally need to be arranged along the length direction of the endoscope 1000 in a matching manner, so as to satisfy the functional operation of different parts of the endoscope 1000, for example, the endoscope 1000 is generally in a linear structure, so that the positioning device 2000, the adjusting device 3000 and the imaging device 4000 need to be arranged along a straight line, as shown in fig. 1 and 2, for example, in one embodiment, the calibration apparatus may include a guide base 5000, a reference straight line for installing the positioning device 2000, the adjusting device 3000 and the imaging device 4000 may be formed in the guide base 5000, further, the positioning device 2000, the adjusting device 3000 and the imaging device 4000 are disposed on the guide base 5000 along a reference straight line, but of course, if the endoscope 1000 has a non-linear structure, the positioning device 2000, the adjusting device 3000 and the imaging device 4000 may be arranged in a non-linear manner, for example, the positioning device 2000, the adjusting device 3000 and the imaging device 4000 may be arranged in an arc-shaped manner, which is not limited herein.

The positioning device 2000, the adjusting device 3000 and the imaging device 4000 may be fixed and arranged on the guide base 5000 in any structure, for example, in one embodiment, a linear track 5100 may be disposed on the guide base 5000, a track direction of the linear track 5100 may form the reference line, at this time, the positioning device 2000, the adjusting device 3000 and the imaging device 4000 may be arranged on the guide base 5000 in a linear structure through the linear track 5100, and the positioning device 2000, the adjusting device 3000 and the imaging device 4000 may be conveniently and accurately arranged on the guide base 5000 by using the linear track 5100.

Moreover, the positioning device 2000, the adjusting device 3000 and the imaging device 4000 can be movably assembled on the guiding base 5000 along the linear track 5100, for example, any suitable device of the positioning device 2000, the adjusting device 3000 and the imaging device 4000 can be movably assembled along the linear track 5100, for example, a sliding fit structure such as a sliding block, a sliding chute and the like which is matched with the linear track 5100 can be arranged on the positioning device 2000, the adjusting device 3000 or the imaging device 4000, and then the sliding fit structure such as the sliding block, the sliding chute and the like is slidably assembled on the guiding base 5000 along the linear track 5100, once the positioning device 2000, the adjusting device 3000 or the imaging device 4000 can linearly move on the guiding base 5000 along the linear track 5100, the relative distance between each two of the positioning device 2000, the adjusting device 3000 and the imaging device 4000 can be adjusted according to the requirement of assembling the endoscope 1000, the assembly and disassembly of the endoscope 1000 are more convenient and faster.

The rotation adjusting portion 3200 of the adjusting device 3000 can be mainly used for rotating the lens 1300 of the endoscope 1000, and the rotation of the lens 1300 of the endoscope 1000 is a fixed axis rotation along the central axis of the lens tube 1200, so the rotation adjusting portion 3200 can adopt any structural form, for example, in one embodiment, the rotation adjusting portion 3200 can include a rotating member 3210 and a driving member 3220, and the rotating member 3210 is further provided with a fixing hole for fixing the lens 1300 of the endoscope 1000, after the lens 1300 of the endoscope 1000 is inserted and fixed in the fixing hole, the fixed axis rotation of the rotating member 3210 can be converted into a fixed axis rotation of the lens 1300 of the endoscope 1000, the rotation of the rotating member 3210 can be driven, the driving member 3220 can be drivingly connected with the rotating member 3210, and the driving member 3220 can be controlled to move by any power source such as a motor, the rotating member 3210 can be driven to rotate in a fixed axis by the driving member 3220.

Referring to fig. 3, for example, in one embodiment, the rotating member 3210 may be a worm wheel, a fixing hole is formed in a central position of the worm wheel, the driving member 3220 may be a worm, the worm is controlled to rotate by a power source, and then the worm and the worm wheel may form a worm and gear structure through meshing transmission, but the rotation adjusting portion 3200 may also adopt other structural forms, which is not limited herein.

In one embodiment, the positioning device 2000 may further include a first base 2100, the first base 2100 is provided with a first groove 2110, the first groove 2110 can be used for fixing the handle 1100 of the endoscope 1000 and the endoscope tube 1200 of the endoscope 1000, in this case, the first groove 2110 may be provided with a structural shape according to the corresponding structure of the endoscope 1000, such as a square groove, a circular groove, and the like, or the interior of the first groove 2110 may be provided with a deformed structure, and the deformed structure is adapted to the corresponding structure of the endoscope 1000. Similarly, the adjusting device 3000 may also include a second base 3100, the second base 3100 defines a second groove 3110, the rotating adjusting portion 3200 is disposed in the second groove 3110, and the structure of the second groove 3110 may also be configured according to the assembly requirement of the rotating adjusting portion 3200, such as a square groove, a circular groove, and the like.

Referring to fig. 4 to 11, the light reflecting region 1410 may also be formed by selecting a suitable position or structure on the lens 1300 of the endoscope 1000, for example, in one embodiment, the lens 1300 of the endoscope 1000 has a protective glass 1400, and the protective glass 1400 has a light reflecting effect, so that the light reflecting region 1410 may be directly formed by the protective glass 1400 of the lens 1300 of the endoscope 1000. When the shape of the cover glass 1400 is different, the shape of the reflection spots 4120 is different, and similarly, the calibration marks 4220 may be selected to have an appropriate shape such as a straight mark or a curved mark, so that it is necessary to compare the reflection spots 4120 having different shapes with the calibration marks 4220.

Referring to fig. 6 to 8, for example, when the shape of the protective glass 1400 is a waist-hole shape, only whether the reflected light spot 4120 is parallel to the straight line mark is needed, and then the direction consistency between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 can be determined, as shown in fig. 9 to 11, if the protective glass 1400 is two round lenses, two round reflected light spots 4120 can be observed on the calibration plate 4200, and whether the two round reflected light spots 4120 are on the same straight line mark is determined according to the straight line mark on the calibration plate 4200, and then the direction consistency between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 can be determined, besides, the protective glass 1400 and the calibration mark 4220 can also be selected from other structural forms, and the skilled person can set the configuration according to the needs, and is not limited herein.

The imaging region 4210 of the imaging device 4000 may be formed by selecting any surface structure of the imaging device 4000, and the imaging region 4210 may be a planar region or a curved region, for example, in one embodiment, the imaging device 4000 has a calibration plate 4200, and the calibration plate 4200 may be a planar plate or a curved plate, so that the surface of the calibration plate 4200 may be used to form the imaging region 4210.

Moreover, the imaging region 4210 can change position relative to the light source, for example, the imaging region 4210 can change position relative to the light source can refer to the imaging region 4210 can move up and down, left and right, and tilt, or the imaging region 4210 can change angle relative to the light source, for example, the imaging region 4210 can change angle relative to the light source can refer to the imaging region 4210 can rotate clockwise, counterclockwise, and the like relative to the light source, in one embodiment, when the imaging region 4210 is formed by the surface of the calibration plate 4200, the position and angle of the imaging region 4210 relative to the light source can be changed by changing the position and angle of the calibration plate 4200, which is not limited herein.

Therefore, when the reflected light spot 4120 formed in the imaging region 4210 is not aligned with the calibration mark 4220 temporarily or the alignment matching effect is not good, the reflected light spot 4120 can still be aligned with the calibration mark 4220 by using the change of the position and angle of the imaging region 4210 relative to the light source, for example, when the waist-shaped reflected light spot 4120 is not parallel to but misaligned with the linear mark on the calibration plate, the position of the imaging region 4210 can be moved up and down, so that the waist-shaped reflected light spot 4120 can be not only parallel to but also aligned with the linear mark on the calibration plate, and thus whether the two circular reflected light spots 4120 are on the same linear mark can be determined. In addition, when the reflected light spot 4120 and the calibration marks 4220 take other structural forms, the reflected light spot 4120 and the calibration marks 4220 can be matched by changing the position and angle of the imaging area 4210 with respect to the light source, which is not limited herein.

In addition to the default direction consistency matching between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000, direction consistency matching at other angles may be formed between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000, for example, direction consistency matching at angles of 30 ° and 45 °, which may be set by those skilled in the art according to needs, and is not limited herein.

It can be seen that the calibration apparatus actually employs a non-contact optical detection method, and can determine the direction of the lens 1300 by directly constituting the light reflection region 1410 based on a partial region of the lens 1300 of the endoscope 1000 in cooperation with the imaging device 4000, and further can detect the direction coincidence between the direction of the lens 1300 of the endoscope 1000 and the direction of the handle 1100 of the endoscope 1000.

The invention also provides a calibration method of the endoscope 1000, which comprises the following steps based on the calibration device: when the handle 1100 and the scope tube 1200 of the endoscope 1000 are fixed to the positioning device 2000 or only the scope tube 1200 of the endoscope 1000 is fixed to the positioning device 2000, the lens 1300 of the endoscope 1000 can be rotated in a fixed axis manner by rotating the lens 1300 of the endoscope 1000 with respect to the handle 1100 of the endoscope 1000 and the scope tube 1200 of the endoscope 1000 by the rotation adjusting portion 3200 of the adjusting device 3000, and the alignment mark 4220 and the reflection spot 4120 on the imaging device 4000 are aligned and matched with each other in accordance with the relative relationship between the reflection spot 4120 and the alignment mark 4220 in the imaging area 4210 of the imaging device 4000, so that it can be proved that the handle 1100 and the lens 1300 of the endoscope are aligned and matched with each other.

For example, if the protective glass 1400 is a round lens, two round reflective spots 4120 can be observed on the calibration plate 4200, and whether the two round reflective spots 4120 are on the same straight mark can be determined according to the straight mark on the calibration plate 4200, so as to determine the direction consistency of the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000.

Once the alignment of the direction of the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 is completed, the lens 1300 of the endoscope 1000 and the scope tube 1200 of the endoscope 1000 may be fixed by means of dispensing or the like, and the alignment result of the direction alignment matching may be determined. That is, at this time, the relative relationship between the lens 1300 of the endoscope 1000 and the scope 1200 of the endoscope 1000 cannot be adjusted or calibrated any more.

Therefore, if the lens 1300 of the endoscope 1000 is displaced from the handle 1100 of the endoscope 1000 again after the endoscope 1000 is put to use a certain number of times, the lock between the handle 1100 of the endoscope 1000 and the scope tube 1200 of the endoscope 1000 is released, the handle 1100 of the endoscope 1000 and the scope tube 1200 of the endoscope 1000 can be rotated relatively, and the alignment of the direction coincidence between the lens 1300 of the endoscope 1000 and the handle 1100 of the endoscope 1000 can be performed again.

Wherein, relative locking and relative release can be realized between the handle 1100 of the endoscope 1000 and the endoscope tube 1200 of the endoscope 1000 by adopting any structural form, for example, an adjusting seat 1500 can be arranged between the handle 1100 of the endoscope 1000 and the endoscope tube 1200 of the endoscope 1000, the adjusting seat 1500 is provided with an adjusting hole 1510, and then locking and release between the handle 1100 of the endoscope 1000 and the endoscope tube 1200 of the endoscope 1000 can be realized by the threaded fit between the adjusting screw 1520 and the adjusting hole 1510.

In view of the above, the present invention further provides a calibration method of the endoscope 1000, which includes the following steps based on the calibration apparatus: the handle 1100 of the endoscope 1000 is fixed to the positioning device 2000, and the scope 1200 of the endoscope 1000 and the lens 1300 of the endoscope 1000 are rotated with respect to the handle 1100 of the endoscope 1000 by the rotation adjusting section 3200 of the adjusting device 3000, or only the scope 1200 of the endoscope 1000 is rotated, and at this time, the alignment mark 4220 on the imaging device 4000 and the reflected light spot 4120 are aligned and matched. As can be seen from this, this calibration method is actually performed by rotating the scope 1200 of the endoscope 1000 and the lens 1300 of the endoscope 1000 with respect to the handle 1100 of the endoscope 1000, or by rotating only the scope 1200 of the endoscope 1000, and therefore this calibration method is suitable for a case where the lens 1300 of the endoscope 1000 and the scope 1200 of the endoscope 1000 have been fixed by means of dispensing or the like.

Similarly, referring to fig. 6 to 11, for example, if the shape of the protective glass 1400 is a waist-hole shape, the direction consistency between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 can be determined only by determining whether the reflected light spot 4120 is parallel to the linear mark, and if the protective glass 1400 is two circular lenses, two circular reflected light spots 4120 can be observed on the calibration plate 4200, and the direction consistency between the handle 1100 of the endoscope 1000 and the lens 1300 of the endoscope 1000 can be determined by determining whether the two circular reflected light spots 4120 are on the same linear mark according to the linear mark on the calibration plate 4200.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An alignment device for an endoscope, the alignment device comprising:

positioning means which can be used to fix a handle of an endoscope and/or a scope tube of an endoscope;

an adjustment device having a rotational adjustment portion that can be used to rotate a lens of an endoscope;

the imaging device comprises a light source and an imaging area, wherein the lens is provided with a light reflecting area, the light source can emit light to the light reflecting area, a reflected light spot is formed in the imaging area through refraction of the light reflecting area, and the imaging area is provided with a calibration mark for calibration matching with the reflected light spot.

2. The calibration device of claim 1, wherein the calibration device comprises:

a guide base on which the positioning device, the adjusting device, and the imaging device are disposed along a reference straight line.

3. The calibration device according to claim 2, wherein a linear rail is provided on the guide base, the linear rail constituting the reference line, and at least one of the positioning means, the adjusting means, and the imaging means is movably fitted on the guide base along the linear rail.

4. The calibration device according to claim 1, wherein the rotation adjustment portion includes:

the rotating piece is provided with a fixing hole, and the fixing hole can be used for fixing a lens of the endoscope;

the driving piece is in driving connection with the rotating piece.

5. The calibration device of claim 4, wherein the rotatable member is a worm gear and the drive member is a worm.

6. The calibration device according to claim 1, wherein the positioning means comprise a first base provided with a first recess adapted to fix a handle of an endoscope and/or a tube of an endoscope; and/or the presence of a gas in the gas,

the adjusting device comprises a second base, a second groove is formed in the second base, and the rotating adjusting portion is arranged in the second groove.

7. The calibration device according to claim 1, wherein the imaging means has a calibration plate, a surface of which constitutes the imaging area; and/or the presence of a gas in the atmosphere,

the imaging region can change position and/or angle relative to the light source.

8. The calibration device of claim 1, wherein the light reflecting area is formed by a cover glass of a lens of an endoscope.

9. A method for calibrating an endoscope, based on the calibration device according to any one of claims 1 to 8, comprising the steps of:

fixing a handle and/or a scope tube of an endoscope on the positioning device;

and rotating the lens of the endoscope relative to the handle of the endoscope and/or the tube of the endoscope by using the rotating adjusting part of the adjusting device to enable the calibration mark on the imaging device to be aligned and matched with the reflected light spot.

10. A method for calibrating an endoscope, based on the calibration device according to any one of claims 1 to 8, comprising the steps of:

fixing a handle of an endoscope on the positioning device;

and rotating the tube of the endoscope and/or the lens of the endoscope relative to the handle of the endoscope by using the rotating adjusting part of the adjusting device to enable the calibration mark on the imaging device to be aligned and matched with the reflected light spot.

Images