CN211652028U - Medical endoscope imaging quality detection system and auxiliary device thereof - Google Patents
Medical endoscope imaging quality detection system and auxiliary device thereof Download PDFInfo
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- CN211652028U CN211652028U CN202020565968.XU CN202020565968U CN211652028U CN 211652028 U CN211652028 U CN 211652028U CN 202020565968 U CN202020565968 U CN 202020565968U CN 211652028 U CN211652028 U CN 211652028U
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Abstract
The utility model provides a medical endoscope imaging quality detecting system and auxiliary device thereof, this auxiliary device detect for medical endoscope and provide the testing environment with the test target, including mount pad, the total mark ball structure of setting on the mount pad and set up the endoscope of total mark ball and press from both sides tight adjustment mechanism and install the light intensity adjustment mechanism on the total mark ball. The auxiliary device of the utility model adopts an integrating sphere structure, so that the background brightness of the test target board is uniform and stable, and the interference of ambient light to the medical endoscope imaging quality detection system is avoided; the light intensity adjusting mechanism arranged at the assembly interface of the small integrating sphere can continuously adjust the brightness change and improve the precision of brightness response detection; the endoscope clamping and adjusting mechanism is adopted to realize the azimuth micro-adjustment of at least four dimensions at the front end of the endoscope and ensure the detection precision.
Description
Technical Field
The utility model belongs to the technical field of medical endoscope imaging quality detects, concretely relates to medical endoscope imaging quality detecting system and auxiliary device thereof.
Background
The medical endoscope is used for directly reflecting the internal cavity condition of human organs when penetrating into a body, and uses illumination light to obtain endoscope images in the body cavity, and the medical endoscope can be generally divided into two types, namely an optical endoscope which adopts optical fiber beams to transmit and guide images; one is an electronic endoscope which uses a CCD or camera instead of a fiber optic bundle to conduct image signals and transmits them to a monitor located outside the body to display images for viewing and diagnosis by a doctor. The quality of the medical endoscope imaging quality directly influences the observation and judgment of doctors, and has very important clinical significance for detecting and inspecting the medical endoscope imaging quality.
Although the State food and drug administration officials formally implemented the medical endoscope function supply device camera system of the standards YY/T1603 2018 of the people's republic of China and medicine industry from 2019 to 1 month and 1 day, the standards give clear requirements on the endoscope imaging performance, namely four indexes of brightness response characteristic, signal-to-noise ratio, spatial frequency response and static image tolerance.
The existing medical endoscope imaging quality detection research usually temporarily builds a detection environment, and is shown in fig. 1. Fig. 1 is a layout diagram of optical paths for detecting the imaging quality of an endoscope, in which a test window 05 is disposed on a test target 02, and irradiation light sources, i.e., a light source a 01 for irradiating the background of the test target 02 and a light source B03 for irradiating the test target 02 are disposed, and an endoscope front end 041 (a lens, such as a CCD or a camera, is mounted at the endoscope front end 041) is aligned with the test target 02 and the test window 05 to obtain an image of the test target 02, and the collected image can be stored and processed by an endoscope camera system 07; the attenuation sheet 06 is used for changing the brightness of the emergent light of the test window 05, and the test window 05 can obtain different brightness values by using attenuation sheets with different attenuation capabilities. Thereby obtaining images with different test brightness in the endoscope image quality analysis.
In order to ensure accurate and reliable detection of the imaging quality of the medical endoscope, the constructed detection environment (see fig. 1) needs to meet the following requirements: the spatial uniformity of the background illumination of test target 02 should not exceed 20% and the spatial brightness uniformity of the illumination of test window 05 should not exceed 5%. Firstly, in the test environment set up in fig. 1, the requirement on the illumination uniformity of the test target 02 is high, slight brightness fluctuation can affect image analysis, the test environment in fig. 1 is in an open environment, the influence of ambient light and light scattering and reflection can cause light intensity change, and the spatial uniformity and stability of the illumination of the test target 02 can hardly meet the standard requirement (see YY/T1603-; secondly, in the testing process, to ensure that the position of the front end 041 of the endoscope is relatively fixed with the testing target 02 and the distance is adjustable, the center of the lens view field needs to be accurately aligned with the center of the testing target 02, otherwise, image distortion is caused, and the detection result is affected, the testing environment shown in fig. 1 is temporarily set up, the alignment of the view field center and the center of the testing target 02 is usually manually operated, and the alignment of the view field center and the center of the testing target 02 is difficult to accurately align due to the manual operation error and the difference of individual experience; thirdly, the brightness of the test window 05 of the test target 02 needs to be gradually changed for measurement, and the measurement is performed sequentially, in the test environment of fig. 1, various operations during two measurements need to be manually intervened, and the stability and consistency of the detection result are poor due to the manual operation error. However, in the medical industry at home and abroad, no special and effective system or product for detecting the imaging quality of the medical endoscope exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a medical endoscope formation of image auxiliary device for quality testing.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
the utility model provides a medical endoscope formation of image auxiliary device for quality testing, for medical endoscope detects with test target (02) provides the testing environment, includes integral ball structure (2) and light intensity adjustment mechanism (5), wherein:
the integrating sphere structure (2) comprises a small integrating sphere (21) and a large integrating sphere (22) which are fixedly connected, the small integrating sphere (21) and the large integrating sphere (22) are both of hollow spherical shell structures, the small integrating sphere (21) and the large integrating sphere (22) are coaxially communicated, and a test target plate slot (3) for inserting the test target plate (02) is formed in the communication position between the small integrating sphere (21) and the large integrating sphere (22);
the front end (041) of the endoscope is arranged inside the large integrating sphere (22) and is opposite to the test target (02) inserted into the test target slot (3);
an assembly interface (211) is arranged on the spherical shell of the small integrating sphere (21), and the light intensity adjusting mechanism (5) is arranged at the assembly interface (211).
In the auxiliary device for medical endoscope imaging quality detection, the light intensity adjusting mechanism (5) is provided with a connecting piece (52) with a through hole, the connecting piece (52) is arranged on a spherical shell of the small integrating sphere (21) at the assembling interface (211), the inner side of the connecting piece (52) is provided with the diaphragm (51), the outer side of the connecting piece (52) is provided with the interface piece (55) with the through hole, and the through holes of the diaphragm (51), the connecting piece (52) and the interface piece (55) are coaxially communicated.
In the auxiliary device for detecting the imaging quality of the medical endoscope, the light intensity adjusting mechanism (5) is also provided with an adjusting handle (54), and the outer part of the interface piece (55) is rotatably sleeved with a shell (56); an arc-shaped guide rail (561) is circumferentially arranged on the side wall of the shell (56), one end of the adjusting handle (54) penetrates through the arc-shaped guide rail (561) and is fixed on the outer wall of the interface piece (55), and the other end of the adjusting handle extends out of the arc-shaped guide rail (561); the lower end face of the interface piece (55) is provided with a slot (551), the diaphragm (51) is provided with a connecting arm (57), the lower end of the connecting arm (57) is arranged on the adjusting interface of the diaphragm (51), and the upper end of the connecting arm extends into the slot (551).
In the auxiliary device for detecting the imaging quality of the medical endoscope, the light intensity adjusting mechanism (5) is further provided with a conical reflecting surface (53), the conical reflecting surface (53) is positioned in the small integrating sphere (21) and is installed to the inner side of the connecting piece (52) through two connecting rods (58), and the conical reflecting surface (53) is coaxially aligned with the through hole of the diaphragm (51).
Among the above-mentioned medical endoscope formation of image quality auxiliary device for detection, big integrating sphere (22) are the circular spherical shell structure that first semicircle spherical shell and the combination of second semicircle spherical shell formed, second light transmission window (223) have been arranged on the first semicircle spherical shell with little integrating sphere (21) fixed connection, first light transmission window (213) that are equipped with on second light transmission window (223) and little integrating sphere (21) spherical shell set up relatively and fix, form the space between the two, as test target board slot (3), second light transmission window (223) and first light transmission window (213) are located the same axis of two integrating spheres.
In the auxiliary device for detecting the imaging quality of the medical endoscope, a light guide beam interface (221) for connecting a light guide optical cable of an illumination light source is also arranged on the spherical shell of the large integrating sphere (22); an axial through hole (224) is arranged on a second semicircular spherical shell of the large integrating sphere (22), and the axial through hole (224) is coaxially arranged with a second light-transmitting window (223) arranged on the first semicircular spherical shell.
In the auxiliary device for detecting the imaging quality of the medical endoscope, the edges of the first semicircular spherical shell and the second semicircular spherical shell respectively extend outwards to form an annular convex edge (225), and at least one group of symmetrically fixed locking gaskets (226) are arranged on the annular convex edge (225).
The auxiliary device for detecting the imaging quality of the medical endoscope further comprises an endoscope clamping and adjusting mechanism (4) for clamping the front end (041) of the endoscope and adjusting the direction of the endoscope, wherein the endoscope clamping and adjusting mechanism (4) is arranged on an installation plate (222) arranged in the large integrating sphere (22); the endoscope clamp adjustment mechanism (4) includes:
a fixed base (41) mounted on the mounting plate (222);
the endoscope adjusting mechanism (42) is arranged on the fixed base (41) and comprises a horizontal rotary table (424), a Y-direction adjusting mechanism (421), an X-direction adjusting mechanism (422) and a Z-direction adjusting mechanism (423) which are sequentially arranged from bottom to top, wherein the axial direction of the second light-transmitting window (223) of the large integrating sphere (22) is taken as the X direction, the direction which is horizontally vertical to the X direction is taken as the Y direction, and the direction which is vertical to the plane where the X direction and the Y direction are located is taken as the Z direction; and
and the endoscope clamping mechanism (43) is a V-shaped groove type fixed guide rail, one end of the endoscope clamping mechanism is fixed on the Z-direction adjusting mechanism (423), and the other end faces the test target board slot (3) positioned between the large integrating sphere (22) and the small integrating sphere (21).
Above-mentioned medical endoscope formation of image auxiliary device for quality testing still includes mount pad (1) that is used for supporting fixed integrating sphere structure (2), and mount pad (1) is equipped with:
the horizontal base (11) is a ladder-climbing structure consisting of two horizontal cross beams (111) arranged in parallel and two horizontal cross rods (112) arranged in parallel, and the horizontal cross rods (112) are fixedly arranged between the two horizontal cross beams (111) at intervals;
the vertical supporting column (12) comprises two first vertical columns (121) arranged on the horizontal cross rod (112) and two second vertical columns (122) respectively arranged on the two horizontal cross beams (111), the small integrating sphere (21) is fixed on the two first vertical columns (121), and a first semicircular spherical shell of the large integrating sphere (22) is fixed on the two second vertical columns (122); and
and the sliding structure (13) comprises sliding rails (131) symmetrically arranged on the two horizontal cross beams (111), sliding blocks (132) sleeved on the sliding rails (131) and two third vertical columns (123) respectively fixed on the sliding blocks (132), and second semicircular spherical shells of the large integrating spheres (22) are fixed on the two third vertical columns (123).
The utility model also provides a medical endoscope imaging quality detection system, which comprises a light source and a test target board (02) for medical endoscope detection, the medical endoscope imaging quality detection auxiliary device comprises a host (6) used for storing and processing medical endoscope images, a display (7) used for displaying images and processing results, and the medical endoscope imaging quality detection auxiliary device, wherein a test target (02) is inserted into a test target slot (3) of the medical endoscope imaging quality detection auxiliary device, the front end (041) of a medical endoscope extends into a large integrating sphere (22) of the medical endoscope imaging quality detection auxiliary device and aligns with the test target (02), a light guide cable of a light source (01) is connected to a light intensity adjusting mechanism (5) of the medical endoscope imaging quality detection auxiliary device, and the endoscope is connected to the host (6) through a lead.
By adopting the design, the utility model has the characteristics of it is following: the utility model discloses the device detects with the test mark board for medical endoscope and provides fixed detection environment, detects unification, the standardization for realizing medical endoscope imaging quality and provides the basic condition. The utility model adopts the integrating sphere structure, so that the background brightness of the test target board 02 is uniform and stable, and the integrating sphere structure is a closed environment, thereby avoiding the interference of ambient light to the medical endoscope imaging quality detection system and causing the change of detection spectrum; the light intensity adjusting mechanism arranged at the assembly interface of the small integrating sphere can continuously adjust the brightness change, at least can realize more than 100 brightness gradient changes, and improve the precision of brightness response detection; the endoscope clamping and adjusting mechanism is arranged in the large integrating sphere to install the front end of the endoscope, so that at least four-dimensional azimuth micro-adjustment is realized, the front end of the endoscope can be used for shooting different parts of a test target inserted into a test target slot according to test requirements, and the detection precision is ensured.
Drawings
FIG. 1 is a schematic illustration of a test environment temporarily set up for testing medical endoscope imaging quality;
FIG. 2 is a schematic structural diagram of the medical endoscope imaging quality detection system of the present invention;
fig. 3A is a schematic structural diagram of an auxiliary mechanism of the medical endoscope imaging quality detection system of the present invention;
FIG. 3B is a schematic view of the mounting base;
FIG. 3C is a schematic diagram of the structure of the open state of the large integrating sphere;
FIG. 3D is a schematic diagram of a small integrating sphere;
FIG. 3E is a schematic structural view of an endoscope clamp adjustment mechanism;
FIG. 3F is a cross-sectional view of the light intensity adjustment mechanism;
fig. 3G is an exploded structural view of the light intensity adjusting mechanism.
The reference numerals are represented as:
01-light source A, 02-test target, 03-light source B, 04-endoscope, 041-endoscope front end; 05-test window, 06-attenuation sheet, 07-endoscope camera system;
200-an auxiliary device;
1-mounting seat, 11-horizontal base, 111-horizontal beam, 112-horizontal beam; 12-vertical support column, 121-first column, 122-second column, 123-third column; 13-sliding structure, 131-sliding rail, 132-sliding block;
2-integrating sphere structure, 21-small integrating sphere, 211-assembly interface, 212-spare interface, 213-first light-transmitting window; 22-large integrating sphere, 221-light guide beam interface, 222-mounting plate, 223-second light transmission window, 224-axial through hole, 225-annular convex edge, 226-locking gasket;
3-testing a target board slot;
4-endoscope clamping adjusting mechanism, 41-fixed base, 42-endoscope adjusting mechanism, 421-Y direction adjusting mechanism, 422-X direction adjusting mechanism, 423-Z direction adjusting mechanism and 424-horizontal rotary table; 43-endoscope clamping mechanism;
5-light intensity adjusting mechanism, 51-diaphragm, 52-connecting piece, 53-conical reflecting surface, 54-adjusting handle; 55-interface piece, 551-slot; 56-housing, 561-arc guide; 57-connecting arm, 58-connecting rod;
6-a host; 7-display.
Detailed Description
The following describes the medical endoscope imaging quality detection system and its auxiliary device in detail with reference to the accompanying drawings and embodiments.
Fig. 2 is a schematic structural diagram of the medical endoscope imaging quality detection system of the present invention. As shown in fig. 2, the medical endoscope imaging quality detection system includes: the detection system of the present invention is different from the temporarily constructed detection environment shown in fig. 1 in that the detection system of the present invention further includes an auxiliary device 200 for providing a detection environment for the medical endoscope detection target board 02, and the auxiliary device 200 provides a fixed detection environment for the test target board 02 (equivalent to the light source a and the light source B shown in fig. 1), the test target board 02 for medical endoscope detection (not shown in fig. 2, see fig. 1), a host 6 for processing medical endoscope images, and a display 7 for displaying images and processing results (equivalent to the endoscope camera system 07 in fig. 1).
Referring to the schematic structural diagrams of the auxiliary mechanism shown in fig. 3A to 3F, in this embodiment, the auxiliary mechanism 200 includes a mounting base 1, an integrating sphere structure 2 disposed on the mounting base 1, an endoscope clamping adjustment mechanism 4 disposed in the integrating sphere structure 2, and a light intensity adjustment mechanism 5 mounted on the integrating sphere structure 2, wherein:
the integrating sphere structure 2 is a hollow spherical shell structure formed by combining two coaxially communicated integrating spheres and comprises a small integrating sphere 21 and a large integrating sphere 22 which are fixedly connected, and a test target board slot 3 for inserting a test target board 02 is arranged at the communication position between the small integrating sphere 21 and the large integrating sphere 22. In the embodiment shown in fig. 3D, the assembly interface 211 and the first light-transmitting window 213 are disposed on the spherical shell of the small integrating sphere 21, the assembly interface 211 is used for installing the light intensity adjusting mechanism 5, preferably, the spherical shell of the small integrating sphere 21 is further provided with a plurality of spare interfaces 212, when the spare interfaces 212 are not used, the spare interfaces 212 may be plugged by plugs, and if the light intensity in the inner cavity of the small integrating sphere 21 is weak or the brightness saturation threshold of the corresponding endoscope is high, the spare interfaces 212 may be activated, and more light sources are connected to enhance the light intensity in the inner cavity of the small integrating sphere 21.
In the embodiment shown in fig. 3C, the large integrating sphere 22 is a spherical shell structure formed by combining a first semicircular spherical shell and a second semicircular spherical shell, a second light-transmitting window 223 is arranged on the first semicircular spherical shell fixedly connected with the small integrating sphere 21, the second light-transmitting window 223 and the first light-transmitting window 213 of the small integrating sphere 21 are oppositely arranged and fixed, a gap is formed between the two and is used as the test target board slot 3, the second light-transmitting window 223 and the first light-transmitting window 213 are completely butted and are positioned on the same axis of the two integrating spheres, and a mounting plate 222 is arranged inside the first semicircular spherical shell and used for mounting the endoscope clamping adjustment structure 4; in one embodiment, the mounting plate 222 is an inverted trapezoid structure, two inclined edges of the mounting plate 222 are respectively fixed on the inner surface of the spherical shell, and the endoscope clamping and adjusting mechanism 4 is installed at the horizontal bottom; the second semicircular spherical shell is provided with a light guide beam interface 221 and an axial through hole 224, the light guide beam interface 221 is used for connecting a light guide cable of a light source, and the axial through hole 224 and the second light-transmitting window 223 are coaxially arranged. Preferably, the edges of the two semi-circular spherical shells extend outwards to form an annular flange 225, at least one set of symmetrically fixed locking washers 226 is arranged on the annular flange 225, the two semi-circular spherical shells are combined together to form the closed large integrating sphere 22, and at this time, the annular flanges 225 on the two semi-circular spherical shells are tightly attached and can be locked and fixed through the locking washers 226.
During normal operation, the cable of the endoscope is led out from the axial through hole 224 of the large integrating sphere 22, and meanwhile, an operator can use the axial through hole 224 as an observation hole for observing the condition inside the large integrating sphere or quantitatively detect the brightness of the test target plate 02 by using a brightness meter.
Referring to fig. 3E, an endoscope clamping adjustment mechanism 4 is disposed on the mounting plate 222 disposed inside the large integrating sphere, and is used for fixing the endoscope front end 041 and adjusting the orientation of the endoscope front end 041. In this embodiment, the endoscope clamping and adjusting mechanism 4 includes a fixed base 41 mounted on the mounting plate 222, and an endoscope adjusting mechanism 42 and an endoscope clamping mechanism 43 mounted on the fixed base 41, wherein the axial direction of the second light-transmitting window 223 of the large integrating sphere 22 is taken as the X direction, the direction perpendicular to the X direction is taken as the Y direction, and the direction perpendicular to the plane where the X direction and the Y direction are located is taken as the Z direction, and the endoscope adjusting mechanism 42 includes a horizontal turntable 424, a Y direction adjusting mechanism 421, an X direction adjusting mechanism 422, and a Z direction adjusting mechanism 423 which are sequentially arranged from bottom to top; the endoscope clamping mechanism 43 is a V-groove type fixed guide rail, one end of the endoscope clamping mechanism 43 is fixed on the Z-direction adjusting mechanism 423, the other end faces the test target board slot 3 between the large integrating sphere 22 and the small integrating sphere 21, and the endoscope front end 041 is clamped and fixed in the V-groove of the endoscope clamping mechanism 43, so that the endoscope front end 041 is ensured to be in a stable state.
Specifically, the horizontal turntable 424 is provided with a scale in the circumferential direction, and the horizontal turntable 424 is rotated to adjust the orientation of the endoscope front end 041, and the rotation angle is read by the scale.
In one embodiment, in the endoscope adjusting mechanism 42, the horizontal rotating table 424, the Y-direction adjusting mechanism 421, the X-direction adjusting mechanism 422, and the Z-direction adjusting mechanism 423 may be existing and mature adjusting components, and are assembled in sequence from bottom to top to form the endoscope adjusting mechanism 42. Preferably, the horizontal rotary table 424, the Y-direction adjustment mechanism 421, the X-direction adjustment mechanism 422, and the Z-direction adjustment mechanism 423 are provided with adjustment knobs.
During operation, the front end 041 of the endoscope is fixedly installed in the V-shaped groove of the endoscope clamping mechanism 43, and the spatial position of the front end 041 of the endoscope is slightly adjusted by rotating the horizontal rotary table 424 and/or the adjusting knobs of the Y-direction adjusting mechanism 421, the X-direction adjusting mechanism 422 and the Z-direction adjusting mechanism 423, so that the front end 041 of the endoscope can be aligned to different parts of the test target 02 inserted into the test target slot 3 to shoot according to the test requirements. This structure has the horizontal turn table 424, and can perform angle compensation adjustment for an endoscope designed to have an angular deviation.
The mounting base 1 is used for supporting and fixing the integrating sphere structure 2. Fig. 3B shows an embodiment of the installation base 1, in which the installation base 1 is provided with a horizontal base 11, a vertical support column 12 and a sliding structure 13, the horizontal base 11 is a ladder-type structure formed by two horizontal cross beams 111 arranged in parallel and two horizontal cross beams 112 arranged in parallel, and the horizontal cross beams 112 are fixedly installed between the two horizontal cross beams 111 at intervals; the vertical supporting column 12 comprises two first upright columns 121 arranged on the horizontal cross bar 112 and two second upright columns 122 respectively arranged on the two horizontal cross beams 111, the small integrating sphere 21 is positioned between the two first upright columns 121 and is installed on the first upright columns 121 through fixing lugs welded on the outer shell of the small integrating sphere, the large integrating sphere 22 is positioned between the two second upright columns 122, and a semicircular spherical shell is installed on the two second upright columns 122 through fixing lugs welded on the annular convex edges 225 of the semicircular spherical shell; the vertical supporting column 12 further includes two third columns 123, the third columns 123 are installed on the sliding structure 13, specifically, the sliding structure 13 includes slide rails 131 symmetrically arranged on the two horizontal beams 111 and slide blocks 132 sleeved on the slide rails 131, the bottoms of the two third columns 123 are respectively fixed on the slide blocks 132 of the sliding structure 13, another semicircular spherical shell of the large integrating sphere 22 is installed on the third columns 123 through fixing lugs welded on the annular convex edge 225, the semicircular spherical shell can move on the slide rails 131 along with the slide blocks 132, and then the large integrating sphere 22 is closed/opened.
In order to control the light flux entering the small integrating sphere 21, a light intensity adjusting mechanism 5 is arranged at the assembling interface 211 of the small integrating sphere 21, and the light of the light source enters the small integrating sphere 21 after passing through the light intensity adjusting mechanism 5. Specifically, referring to fig. 3F and 3G, the light intensity adjusting mechanism 5 is provided with a connecting member 52, the connecting member 52 is provided with a through hole, which is installed on the spherical shell of the small integrating sphere 21 at the assembling interface 211, one end of the connecting piece 52 extends into the small integrating sphere 21 through the assembling interface 211, wherein, one side of the connecting piece 52 facing the inside of the small integrating sphere 21 is defined as the inner side, one side facing the outside of the small integrating sphere 21 is defined as the outer side, the inner side of the connecting piece 52 is provided with the diaphragm 51, the diaphragm 51 is the existing mature product, the outer side of the connecting piece 52 is provided with the interface piece 55, the interface piece 55 is a cylindrical structure provided with a through hole, and the through holes of the diaphragm 51, the connecting piece 52 and the interface piece 55 are coaxially communicated, the light guide cable of the light source is connected to the interface piece 55, the light of the light source enters the inside of the small integrating sphere 21 through the through hole of the diaphragm 51, the light flux entering into the small integrating sphere 21 can be adjusted by adjusting the size of the through hole of the diaphragm 51.
In one embodiment, the connector 52 is fixed to the spherical shell of the small integrating sphere 21 by screws, and the interface 55 is threadedly coupled to the connector 52.
Referring to fig. 3G, in order to facilitate online adjustment of the luminous flux entering the small integrating sphere 21, the light intensity adjusting mechanism 5 is further provided with an adjusting handle 54, a housing 56 is rotatably sleeved outside the interface 55, and the interface 55 and the housing 56 can rotate relatively; an arc-shaped guide rail 561 is circumferentially arranged on the side wall of the shell 56, one end of the adjusting handle 54 extends into the arc-shaped guide rail 561 and is fixed on the outer wall of the interface member 55, and the other end extends out of the arc-shaped guide rail 561; the lower end surface of the interface member 55 is provided with a slot 551, the slot 551 is used for inserting a connecting arm 57 arranged on the diaphragm 51, the lower end of the connecting arm 57 is installed on an adjusting interface of the diaphragm 51 (the adjusting interface is an interface of the diaphragm 51 product, and the size of a through hole of the diaphragm can be adjusted by rotating the diaphragm 51 through the interface), and the upper end of the connecting arm extends into the slot 551. When the adjusting handle 54 rotates along the arc-shaped guide rail 561, the interface member 55 is driven to rotate, and the diaphragm 51 is driven to rotate through the connecting arm 57, so as to adjust the size of the through hole of the diaphragm 51.
Preferably, the interface 55 is connected with the diaphragm 51 through a connecting arm 57, and the height of the connecting arm 57 is greater than the depth of the slot of the interface 55, so that a space is formed between the lower end surface of the interface 55 and the diaphragm 51, and the interface 55 is prevented from rubbing against the diaphragm 51 in the rotation process.
Preferably, the light intensity adjusting mechanism 5 is further provided with a conical reflecting surface 53, the conical reflecting surface 53 is located in the small integrating sphere 21 and is mounted to the connecting member 52 through two connecting rods 58, and the conical reflecting surface 53 and the through hole of the diaphragm 51 are coaxially arranged, so that incident light is firstly subjected to diffuse reflection by the conical reflecting surface after passing through the through hole of the diaphragm 51, and local brightness unevenness caused by direct light directly irradiating the integrating sphere is avoided.
When in use, the light guide cable of the light source is connected to the interface piece 55, and the adjusting handle 54 is operated to rotate along the annular guide rail, so that the opening size of the diaphragm 51 can be adjusted; wherein the diaphragm 51 is an existing product directly purchased (for example, basic parameters are: brand CINZEN, model MA110-00-01, maximum aperture 11mm, number of blades 6).
The light source enters the small integrating sphere 21 through the light intensity adjusting mechanism 5, namely, the light is firstly uniformly emitted into the small integrating sphere 21 through the conical reflecting surface 53 and is reflected for multiple times on the inner surface, so that the light is uniformly distributed in the sphere; the inner surface of the small integrating sphere 21 is made of barium sulfate coating material, so that spectral change cannot be caused; the light intensity entering the small integrating sphere 21 can be adjusted by the diaphragm 51 of the light intensity adjusting mechanism 5, and at least more than 100 brightness gradient changes can be realized.
The utility model adopts the integrating sphere structure, so that the background brightness of the test target board 02 is uniform and stable, and the integrating sphere structure is a closed environment, thereby avoiding the interference of ambient light to the medical endoscope imaging quality detection system and causing the change of detection spectrum; the light intensity adjusting mechanism 5 arranged at the assembling interface 211 of the small integrating sphere 21 can continuously adjust the brightness change, realize the continuous stepless adjustment of the brightness (at least can realize more than 100 brightness gradient changes), and improve the precision of the brightness response detection; the endoscope front end 041 is arranged by adopting the endoscope clamping and adjusting mechanism 4 to realize the azimuth micro-adjustment of at least four dimensions, so that the endoscope front end 041 can be used for shooting different parts of the test target 02 inserted into the test target slot 3 according to test requirements, and the detection precision is ensured.
The utility model discloses medical endoscope imaging quality detecting system includes above-mentioned auxiliary device 200, and auxiliary device 200 detects for medical endoscope and provides fixed detection environment with test target 02, for realizing medical endoscope imaging quality detection unification, standardization provide the basic condition. Referring to fig. 2, in the medical endoscope imaging quality detection system, a test target 02 is inserted into a test target slot 3 provided in an auxiliary device 200, a front end 041 (not shown in fig. 2, see fig. 1) of a medical endoscope extends into a large integrating sphere 22 of the auxiliary device 200 and is aligned with the test target 02, a light guide cable of a light source is connected to a light intensity adjusting mechanism 5 of the auxiliary device 200, the endoscope is connected to a host computer 6 through a wire, the host computer 6 stores and processes an endoscope image, and the endoscope image and a processing result are transmitted to a display 7 for displaying.
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 person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a medical endoscope formation of image auxiliary device for quality testing, for medical endoscope detects with test target (02) provides the testing environment, its characterized in that, includes integral ball structure (2) and light intensity adjustment mechanism (5), wherein:
the integrating sphere structure (2) comprises a small integrating sphere (21) and a large integrating sphere (22) which are fixedly connected, the small integrating sphere (21) and the large integrating sphere (22) are both of hollow spherical shell structures, the small integrating sphere (21) and the large integrating sphere (22) are coaxially communicated, and a test target plate slot (3) for inserting the test target plate (02) is formed in the communication position between the small integrating sphere (21) and the large integrating sphere (22);
the front end (041) of the endoscope is arranged inside the large integrating sphere (22) and is opposite to the test target (02) inserted into the test target slot (3);
an assembly interface (211) is arranged on the spherical shell of the small integrating sphere (21), and the light intensity adjusting mechanism (5) is arranged at the assembly interface (211).
2. The medical endoscope imaging quality detection auxiliary device according to claim 1, characterized in that the light intensity adjusting mechanism (5) is provided with a connecting piece (52) having a through hole, the connecting piece (52) is installed on the spherical shell of the small integrating sphere (21) at the assembling interface (211), the inner side of the connecting piece (52) is provided with a diaphragm (51), the outer side of the connecting piece (52) is provided with an interface piece (55) having a through hole, and the through holes of the diaphragm (51), the connecting piece (52) and the interface piece (55) are coaxially communicated.
3. The medical endoscope imaging quality detection auxiliary device according to claim 2, characterized in that the light intensity adjusting mechanism (5) is further provided with an adjusting handle (54), and an outer shell (56) is rotatably sleeved outside the interface piece (55); an arc-shaped guide rail (561) is circumferentially arranged on the side wall of the shell (56), one end of the adjusting handle (54) penetrates through the arc-shaped guide rail (561) and is fixed on the outer wall of the interface piece (55), and the other end of the adjusting handle extends out of the arc-shaped guide rail (561); the lower end face of the interface piece (55) is provided with a slot (551), the diaphragm (51) is provided with a connecting arm (57), the lower end of the connecting arm (57) is arranged on the adjusting interface of the diaphragm (51), and the upper end of the connecting arm extends into the slot (551).
4. The medical endoscope imaging quality detection auxiliary device according to claim 2, characterized in that the light intensity adjusting mechanism (5) is further provided with a conical reflecting surface (53), the conical reflecting surface (53) is located inside the small integrating sphere (21), which is mounted to the inner side of the connecting piece (52) through two connecting rods (58), and the conical reflecting surface (53) is coaxially aligned with the through hole of the diaphragm (51).
5. The medical endoscope imaging quality detection auxiliary device according to claim 1, wherein the large integrating sphere (22) is a circular spherical shell structure formed by combining a first semicircular spherical shell and a second semicircular spherical shell, a second light-transmitting window (223) is arranged on the first semicircular spherical shell fixedly connected with the small integrating sphere (21), the second light-transmitting window (223) and a first light-transmitting window (213) arranged on the spherical shell of the small integrating sphere (21) are oppositely arranged and fixed, a gap is formed between the first light-transmitting window and the second light-transmitting window to serve as a test target board slot (3), and the second light-transmitting window (223) and the first light-transmitting window (213) are positioned on the same axis of the two integrating spheres.
6. The medical endoscope auxiliary device for imaging quality detection according to claim 5, characterized in that the spherical shell of the large integrating sphere (22) is further provided with a light guide bundle interface (221) for connecting a light guide cable of the illumination light source; an axial through hole (224) is arranged on a second semicircular spherical shell of the large integrating sphere (22), and the axial through hole (224) is coaxially arranged with a second light-transmitting window (223) arranged on the first semicircular spherical shell.
7. The medical endoscope imaging quality detection auxiliary device according to claim 5, characterized in that the edges of the first semi-circular spherical shell and the second semi-circular spherical shell extend outwards to form annular convex edges (225), and at least one set of symmetrically fixed locking gaskets (226) are arranged on the annular convex edges (225).
8. The medical endoscope auxiliary device for imaging quality inspection according to any one of claims 1 to 7, characterized by further comprising an endoscope clamp adjusting mechanism (4) for clamping the endoscope front end (041) and adjusting the orientation thereof, the endoscope clamp adjusting mechanism (4) being mounted on a mounting plate (222) provided inside the large integrating sphere (22); the endoscope clamp adjustment mechanism (4) includes:
a fixed base (41) mounted on the mounting plate (222);
the endoscope adjusting mechanism (42) is arranged on the fixed base (41) and comprises a horizontal rotary table (424), a Y-direction adjusting mechanism (421), an X-direction adjusting mechanism (422) and a Z-direction adjusting mechanism (423) which are sequentially arranged from bottom to top, wherein the axial direction of the second light-transmitting window (223) of the large integrating sphere (22) is taken as the X direction, the direction which is horizontally vertical to the X direction is taken as the Y direction, and the direction which is vertical to the plane where the X direction and the Y direction are located is taken as the Z direction; and
and the endoscope clamping mechanism (43) is a V-shaped groove type fixed guide rail, one end of the endoscope clamping mechanism is fixed on the Z-direction adjusting mechanism (423), and the other end faces the test target board slot (3) positioned between the large integrating sphere (22) and the small integrating sphere (21).
9. The medical endoscope imaging quality detection auxiliary device according to any one of claims 5 to 7, characterized by further comprising a mounting base (1) for supporting and fixing the integrating sphere structure (2), wherein the mounting base (1) is provided with:
the horizontal base (11) is a ladder-climbing structure consisting of two horizontal cross beams (111) arranged in parallel and two horizontal cross rods (112) arranged in parallel, and the horizontal cross rods (112) are fixedly arranged between the two horizontal cross beams (111) at intervals;
the vertical supporting column (12) comprises two first vertical columns (121) arranged on the horizontal cross rod (112) and two second vertical columns (122) respectively arranged on the two horizontal cross beams (111), the small integrating sphere (21) is fixed on the two first vertical columns (121), and a first semicircular spherical shell of the large integrating sphere (22) is fixed on the two second vertical columns (122); and
and the sliding structure (13) comprises sliding rails (131) symmetrically arranged on the two horizontal cross beams (111), sliding blocks (132) sleeved on the sliding rails (131) and two third vertical columns (123) respectively fixed on the sliding blocks (132), and second semicircular spherical shells of the large integrating spheres (22) are fixed on the two third vertical columns (123).
10. A medical endoscope imaging quality detection system comprises a light source, a test target (02) for medical endoscope detection, a host (6) for storing and processing medical endoscope images and a display (7) for displaying images and processing results, the medical endoscope imaging quality detection auxiliary device is characterized by further comprising the medical endoscope imaging quality detection auxiliary device according to any one of claims 1 to 9, wherein the test target (02) is inserted into a test target slot (3) of the medical endoscope imaging quality detection auxiliary device, the front end (041) of the medical endoscope extends into a large integrating sphere (22) of the medical endoscope imaging quality detection auxiliary device and aligns with the test target (02), a light guide cable of the light source (01) is connected to a light intensity adjusting mechanism (5) of the medical endoscope imaging quality detection auxiliary device, and the endoscope is connected to the host (6) through a lead.
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| CN202020565968.XU CN211652028U (en) | 2020-04-16 | 2020-04-16 | Medical endoscope imaging quality detection system and auxiliary device thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114666578A (en) * | 2022-05-26 | 2022-06-24 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Electronic endoscope system calibration device and calibration method |
| CN114923670A (en) * | 2022-04-25 | 2022-08-19 | 武汉博视曼医疗科技有限公司 | Detection device of endoscope camera system |
| CN116506995A (en) * | 2023-04-24 | 2023-07-28 | 深圳市计量质量检测研究院（国家高新技术计量站、国家数字电子产品质量监督检验中心） | Electronic endoscope test image acquisition method and device and intelligent terminal |
| US20230389777A1 (en) * | 2022-06-07 | 2023-12-07 | Karl Storz Imaging, Inc. | Sterile Calibrating Cap and Methods for Using the Same on an Endoscope |
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2020
- 2020-04-16 CN CN202020565968.XU patent/CN211652028U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923670A (en) * | 2022-04-25 | 2022-08-19 | 武汉博视曼医疗科技有限公司 | Detection device of endoscope camera system |
| CN114923670B (en) * | 2022-04-25 | 2024-04-12 | 武汉博视曼医疗科技有限公司 | Detection device of endoscope camera system |
| CN114666578A (en) * | 2022-05-26 | 2022-06-24 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Electronic endoscope system calibration device and calibration method |
| CN114666578B (en) * | 2022-05-26 | 2022-09-06 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Electronic endoscope system calibration device and calibration method |
| US20230389777A1 (en) * | 2022-06-07 | 2023-12-07 | Karl Storz Imaging, Inc. | Sterile Calibrating Cap and Methods for Using the Same on an Endoscope |
| CN116506995A (en) * | 2023-04-24 | 2023-07-28 | 深圳市计量质量检测研究院（国家高新技术计量站、国家数字电子产品质量监督检验中心） | Electronic endoscope test image acquisition method and device and intelligent terminal |
| CN116506995B (en) * | 2023-04-24 | 2024-04-02 | 深圳市计量质量检测研究院（国家高新技术计量站、国家数字电子产品质量监督检验中心） | Electronic endoscope test image acquisition method and device and intelligent terminal |
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