CN211883718U

CN211883718U - Endoscope camera and endoscope camera system

Info

Publication number: CN211883718U
Application number: CN201921735407.3U
Authority: CN
Inventors: 曾强
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-11-10
Anticipated expiration: 2029-10-16

Abstract

The utility model provides an endoscope camera and endoscope camera system, endoscope camera include handle, chip module, optical module and hand wheel, and the chip module is installed in the holding intracavity of handle, and the chip module is used for truning light signal into the signal of telecommunication, and optical module is connected with the chip module. Because the chip module is directly connected with the optical module, other parts are not arranged between the optical module and the chip module, the size chain calculation is shorter, the influence of processing and mounting errors is reduced, and the optical imaging quality is improved; in addition, the optical module is directly connected with the chip module, so that the axial size of the whole endoscope camera is reduced, and the miniaturization of the endoscope camera is realized.

Description

Endoscope camera and endoscope camera system

Technical Field

The present application relates to in vivo diagnostic instruments, and in particular to an endoscopic camera and an endoscopic camera system.

Background

The hard tube endoscope is mainly used for diagnosing and/or treating the focus of natural cavity in superficial and superficial body surface and cavity through puncture, such as cystoscope and hysteroscope, and is not bent during operation.

The hard tube endoscope mainly comprises a camera, a light source, a light guide beam, a hard tube endoscope, an optical bayonet, a camera host and a display. The camera comprises optical modules, chip modules and other components, the components in the camera need to be aligned and installed along an optical axis, each component has a processing error, and installation errors exist among the components, so that the alignment errors are reduced to ensure the important factors of optical imaging. However, in the prior art, the number of components and connection relations in the camera is large, and the size chain is long in calculation, so that the alignment precision is difficult to guarantee, and the optical imaging quality of the camera is difficult to ensure.

Disclosure of Invention

An embodiment provides an endoscopic camera, comprising:

the handle is provided with an accommodating cavity, and one end of the handle is provided with an opening communicated with the accommodating cavity;

the chip module comprises a shell and a chip assembly, the shell is arranged in the accommodating cavity of the handle, the chip assembly is arranged in the shell, the shell is provided with a light inlet end, the light inlet end is provided with a light inlet, and the chip assembly is used for converting an optical signal into an electric signal;

the optical module is connected with the chip module and comprises a lens barrel, a fixed optical component and an adjustable optical component, wherein the fixed optical component is arranged at one end of the lens barrel, which is far away from the chip module, and the adjustable optical component is axially movably arranged in the lens barrel;

the hand wheel is rotatably sleeved on the lens cone and connected with the adjustable optical component through a connecting piece, and the hand wheel is used for adjusting the axial position of the adjustable optical component.

In one embodiment, one end of the lens barrel is connected with the light inlet end of the shell.

In one embodiment, the light inlet end of the housing is provided with a mounting seat, the mounting seat is provided with a mounting hole, one end of the lens barrel is inserted into the mounting hole of the mounting seat, and the lens barrel is axially aligned with the light inlet.

In one embodiment, a first connecting portion is disposed in the mounting hole of the mounting base, a second connecting portion is disposed at an end of the lens barrel, and the first connecting portion is connected with the second connecting portion.

In one embodiment, the first connection portion is an internal thread and the second connection portion is an external thread; or the first connecting part is a clamping groove, and the second connecting part is a buckle.

In one embodiment, a first positioning portion axially aligned with the first connecting portion is further disposed in the mounting hole of the mounting seat, a second positioning portion axially aligned with the second connecting portion is disposed at one end of the lens barrel, and the first positioning portion is limited on the second positioning portion.

In one embodiment, the first positioning portion is a plurality of axial protrusions, and the second positioning portion is an annular surface; or the first positioning part is an annular surface, and the second positioning part is a plurality of axial bulges.

In one embodiment, a locking hole is formed in the mounting seat, a locking screw is installed in the locking hole, and the locking screw locks one end of the lens barrel in the mounting seat.

In one embodiment, the lens barrel of the optical module and the shell of the chip module are of an integrated structure.

In one embodiment, a front cover is covered on an opening at one end of the handle close to the hand wheel, the front cover is provided with a through hole, the lens cone is arranged in the through hole of the front cover in a penetrating manner, the shell is connected with the front cover, and the front cover is used for installing the chip module and the optical module in the accommodating cavity of the handle.

In one embodiment, the lens barrel is provided with a limiting part, and the limiting part is used for limiting the axial position of the lens barrel.

In one embodiment, the limiting part is clamped between the front cover and the mounting seat.

In one embodiment, the limiting portion is an annular protrusion, or a plurality of radial protrusions arranged on the same circumference.

In one embodiment, the endoscope camera further comprises a fixing support, the fixing support is located in the accommodating cavity of the handle, one end of the fixing support is connected with the front cover, and the other end of the fixing support is connected with the shell of the chip module.

In one embodiment, the fixing bracket is an L-shaped structure, and the fixing bracket includes a long arm and a short arm perpendicular to each other, the long arm abuts against the mounting seat and the housing, the long arm is connected with the housing, and the short arm abuts against the front cover and is connected with the front cover.

In one embodiment, the long arm and the short arm of the fixing bracket are fixed with the housing and the front cover respectively through screws.

In one embodiment, the fixing bracket has a plurality of fixing brackets, and at least one of the plurality of fixing brackets is connected with a grounding cable.

In one embodiment, the fixed bracket to which the grounding cable is connected is a grounding bracket, and an end of a long arm of the grounding bracket extends to an axial end of the housing.

In one embodiment, there is provided an endoscope camera comprising:

the chip module is arranged in the accommodating cavity of the handle and is used for converting an optical signal into an electric signal;

the optical module is directly connected with the chip module, and the whole or part of the optical module is exposed out of the opening of the handle;

and the hand wheel is rotatably sleeved on the optical module.

In one embodiment, the chip module is provided with a mounting seat, the mounting seat is provided with a mounting hole, and one end of the optical module is inserted into the mounting hole of the mounting seat.

In one embodiment, a first connecting portion is disposed in the mounting hole of the mounting base, a second connecting portion is disposed at an end of the optical module, and the first connecting portion is connected to the second connecting portion.

In an embodiment, a first positioning portion axially aligned with the first connecting portion is further disposed in the mounting hole of the mounting base, a second positioning portion axially aligned with the second connecting portion is disposed at one end of the optical module, and the first positioning portion is limited on the second positioning portion.

In one embodiment, there is provided an endoscope camera comprising:

the chip module comprises a shell and a chip assembly, wherein the shell is arranged in an accommodating cavity of the handle, the chip assembly is arranged in the shell, the shell is provided with a light inlet end, the light inlet end is provided with a light inlet, and the chip assembly is used for converting an optical signal into an electric signal;

and the optical module comprises a lens barrel and an optical component, one end of the lens barrel is connected with the light inlet end of the shell, and the optical component is arranged in the lens barrel.

In one embodiment, the housing is provided with a mounting seat, the mounting seat is provided with a mounting hole, and one end of the lens barrel is inserted into the mounting hole of the mounting seat.

In one embodiment, an endoscope camera system is provided, which includes a light source, a light guide beam, an endoscope, an optical bayonet, a communication cable, a camera host, a display, a video connection line and the endoscope camera head, wherein the light source is connected to the endoscope through the light guide beam, one end of the endoscope camera head is connected to the endoscope through the optical bayonet, the other end of the endoscope camera head is connected to the camera host through the communication cable, and the camera host is connected to the display through the video connection line.

According to the endoscope camera and the endoscope camera system of the embodiment, the optical module is directly connected with the chip module, other parts do not exist between the optical module and the chip module, the size chain calculation is shorter, the influence of processing and mounting errors is reduced, and the optical imaging quality is improved; in addition, the optical module is directly connected with the chip module, so that the axial size of the whole endoscope camera is reduced, and the miniaturization of the endoscope camera is realized.

Drawings

FIG. 1 is a schematic diagram of an endoscopic camera system according to an embodiment;

FIG. 2 is a sectional view of an endoscope camera in one embodiment;

FIG. 3 is a cross-sectional view of an adjustable optical assembly according to one embodiment;

FIG. 4 is a cross-sectional view of a connection between a chip module and an optical module in one embodiment;

FIG. 5 is a cross-sectional view of a connection between a chip module and an optical module in one embodiment;

FIG. 6 is an exploded view of a chip module and an optical module according to one embodiment;

FIG. 7 is a sectional view of an endoscope camera in one embodiment;

FIG. 8 is a sectional view of an endoscope camera in one embodiment.

Detailed Description

Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

As shown in fig. 1, in one embodiment, an endoscopic imaging system 1000 is provided, the endoscopic imaging system 1000 comprising a light source 10, a light guide bundle 20, a hard-tube endoscope 30, an optical bayonet 40, an endoscopic camera 50, a communication cable 81, an imaging host 60, a display 70, and a video connection line 82. The main imaging unit 60 is connected to the endoscope camera 50 via a communication cable 81, and an image signal obtained by the endoscope camera 50 is transmitted to the main imaging unit 60 via the communication cable 81 to be processed. In certain embodiments, the communication cable 81 may be an optical communication cable, such as an optical fiber; the endoscope camera 50 converts an image signal (electrical signal) into an optical signal, and transmits the optical signal to the main camera 60 via the communication cable 81, and the main camera 60 converts the optical signal into an electrical signal. The camera host 60 is connected to the display 70 through a video connection line 82, and is configured to transmit a video signal to the display 70 for displaying. It should be understood by those skilled in the art that fig. 1 is merely an example of an endoscopic camera system 1000 and does not constitute a limitation of the endoscopic camera system 1000, and that the endoscopic camera system 1000 may include more or less components than those shown in fig. 1, or some components in combination, or different components, e.g., the endoscopic camera system 1000 may further include a dilator, smoke control, input-output device, network access device, etc.

The light source 10 is used to provide an illumination source to the site to be observed 100. The illumination light source includes a visible light illumination light source and a laser illumination light source (e.g., near infrared light) corresponding to a fluorescent reagent. Light source 10 includes, but is not limited to, a laser light source, an LED light source, or a laser diode.

In the present embodiment, the light source 10 includes a visible light source and a laser light source corresponding to a fluorescent reagent. The visible light source is an LED light source. In one embodiment, the visible light source can provide a plurality of monochromatic lights in different wavelength ranges, such as blue light, green light, red light, and the like. In other embodiments, the visible light source may also provide a combination of the plurality of monochromatic lights, or a broad spectrum white light source. The wavelength range of the monochromatic light is approximately 400nm to 700 nm. The laser light source is used for generating laser light. The laser light is, for example, Near Infrared (NIR). The peak wavelength of the laser takes at least any 1 value in the range of 780nm or 808 nm.

Since the light source 10 can simultaneously provide continuous visible light and laser light corresponding to the fluorescent reagent to the portion to be observed, the collection efficiency of the camera 50 for the visible light image signal and the fluorescent image signal reflected by the portion to be observed 100 is improved.

Wherein a contrast agent, such as Indocyanine Green (ICG), is introduced intravenously or subcutaneously in the site 100 to be observed prior to imaging using the endoscopic camera system 1000, in order to image tissue structures and functions (e.g., blood/lymph/bile in vessels) that are not readily visible using standard visible light imaging techniques. Sites to be observed 100 include, but are not limited to, the blood circulation system, the lymphatic system, and tumor tissue. ICG is commonly known as indocyanine green, a diagnostic green needle, indocyanine green, which is a commonly used contrast agent in clinical diagnosis of cardiovascular system diseases at present, and is widely used in choroidal and retinal vessel imaging. The contrast agent in the region 100 to be observed may generate fluorescence when it absorbs the laser light corresponding to the fluorescent agent generated by the laser light source.

In one embodiment, an endoscopic camera 50 is provided, which is described herein as a hard-tube endoscopic camera, which may also be used on soft lenses.

As shown in fig. 2 and 6, the endoscope camera of the present embodiment includes a handle 1, a chip module 2, an optical module 3, and a hand wheel 4.

The handle 1 has the function of holding components and parts and holding, and the handle 1 has the holding chamber 11, and the both ends of handle 1 have the opening with holding chamber 11 intercommunication, and the opening at handle 1 both ends is used for connecting first bus 81 and optical module 3 respectively. The handle 1 is internally provided with the chip module 2, the handle 1 is also provided with a button assembly 12, and the button assembly 12 is connected with the chip module 2 through a cable. The doctor can hold the handle 1 by hand and operate the endoscope camera to image and detect through the button assembly 12. The one end that handle 1 is close to hand wheel 4 is equipped with protecgulum 5, and protecgulum 5 has the through-hole, and protecgulum 5 lid dress is on the opening of handle 1, and protecgulum 5 is used for installing chip module 2 and optical module 3 in the holding chamber 11 of handle 1.

The chip module 2 includes a housing 21 and a chip module 22, the chip module 22 is installed in the housing 21, the chip module 22 includes components such as a sensor and a processor, the sensor is an optical sensor, the sensor is used for converting an optical signal into an electrical signal, the sensor is used for amplifying, filtering and the like the electrical signal output by the sensor, and the processor transmits the electrical signal to the host 60 for continuous processing through a first bus 81 after processing the electrical signal. One end of the casing 21 is a light inlet end, the light inlet end has a light inlet 211, the sensor of the chip assembly 22 is aligned with the light inlet 211, the casing 21 is further provided with a wire guide hole, and the first bus 81 can extend into the casing 21 through the wire guide hole of the casing 21 and is connected with the processor.

The optical module 3 includes a lens barrel 31, a fixed optical component 32 and an adjustable optical component 33, the fixed optical component 32 is fixedly installed at one end of the lens barrel 31, the adjustable optical component 33 is axially movably installed in the lens barrel 31, and the adjustable optical component 33 can move relative to the fixed optical component 32 to adjust the imaging focal length.

In this embodiment, fixed optical assembly 32 includes fixed lens seat 321 and fixed lens subassembly 322, fixed lens seat 321 is fixed in lens cone 31 through threaded connection's mode, fixed lens seat 321 is the loop configuration, fixed lens seat 321 is the tubular structure, the middle part has the mounting hole, fixed lens subassembly 322 includes two optical lens, two optical lens fixed mounting are in the mounting hole of two optical lens, and two axial mirror surfaces of fixed lens subassembly 322 are respectively with two terminal surfaces parallel and level of fixed lens seat 321.

As shown in fig. 3, adjustable optical assembly 33 includes an adjustable lens holder 331 and an adjustable lens assembly 332, where adjustable lens holder 331 is slidably mounted in lens barrel 31, and adjustable lens holder 331 is a cylindrical structure having a mounting hole coaxial with fixed lens holder 321 and lens barrel 31. The adjustable lens assembly 332 includes a first adjustable lens 3321, a second adjustable lens 3322, a third adjustable lens 3323, a first spacer 3324, and a second spacer 3325, the first adjustable lens 3321, the second adjustable lens 3322, and the third adjustable lens 3323 are sequentially installed in the lens barrel 31 away from the fixed optical assembly 32, the first spacer 3324 is installed between the first adjustable lens 3321 and the second adjustable lens 3322, and the second spacer 3325 is installed between the second adjustable lens 3322 and the third adjustable lens 3323.

The first adjustable lens 3321 has a concave surface in the middle of the incident surface facing the fixed optical assembly 32, the exit surface of the first adjustable lens 3321 is a convex surface, and the first adjustable lens 3321 is used for converting the incident parallel light into diffused light to be emitted. The incident surface of the second adjustable lens 3322 facing the first adjustable lens 3321 is a plane, the exit surface of the second adjustable lens 3322 is a convex surface, and the second adjustable lens 3322 is used for converting the diffused light into parallel light. The third adjustable lens 3323 is a cemented lens for eliminating chromatic aberration. The cemented lens, also called achromatic lens, is formed by two single lens by cementing, and the performance of imaging in the polychromatic (white) is much improved compared with that of a single lens. The achromatic lens is formed by gluing two lenses made of different materials together, so that the dispersion of the glass is corrected. The cemented lens is an achromatic lens made by bonding a low dispersion crown glass positive lens and a high dispersion flint glass negative lens. In design, different values of dispersion and lens shape are optimized at three wavelengths of blue (486.1nm), green (546.1nm) and red (656.3nm), and minimum chromatic aberration is realized.

The light inlet end of the housing 21 of the chip module 2 is mounted with a mounting seat 23 protruding from the light inlet 211, the mounting seat 23 is fixed on the housing 21 by means of screws or threaded connections, and the mounting seat 23 and the housing 21 may be of an integrated structure.

As shown in fig. 4, the mounting seat 23 is provided with a mounting hole, and the mounting hole of the mounting seat 23 is aligned with the light inlet 211 of the housing 21. A first connecting part 231 is arranged in the mounting hole of the mounting seat 23, a second connecting part 311 is arranged on the outer circumference of the end part of the lens barrel 31, the end part of the lens barrel 31 passes through the through hole of the front cover 5 and is inserted into the mounting hole of the mounting seat 23, and the first connecting part 231 is connected with the second connecting part 311. In this embodiment, the first connection portion 231 is an internal thread, correspondingly, the second connection portion 311 is an external thread, and the lens barrel 31 and the mounting base 23 are connected by a screw.

As shown in fig. 5, in other embodiments, the first connecting portion 231 is a slot, and the second connecting portion 311 is a buckle, and the buckle is clamped into the slot by elastic deformation to form a fixed connection; alternatively, first connecting portion 231 is a snap and second connecting portion 311 is a slot, so that lens barrel 31 and mount 23 can be engaged with each other.

In this embodiment, the first positioning portion 232 is further disposed in the mounting hole of the mounting seat 23, the first positioning portion 232 and the first connecting portion 231 are axially disposed side by side, the first positioning portion 232 is located outside the mounting hole in the mounting direction, and the first connecting portion 231 is located inside the mounting hole in the mounting direction. The lens barrel 31 is provided with a second positioning portion 312 corresponding to the first positioning portion 232, the first positioning portion 232 abuts against the second positioning portion 312, and the mounting seat 23 limits the radial position of the lens barrel 31 through the second positioning portion 312, which is beneficial to aligning the lens barrel 31 with the light inlet 211. In this embodiment, the first positioning portion 232 is three axial protrusions, the three axial protrusions are uniformly distributed on the inner wall of the mounting hole of the mounting base 23, the three axial protrusions form a three-jaw limiting structure, the second positioning portion 312 is an annular surface, the three axial protrusions are clamped on the annular surface of the lens barrel 31, and the three axial protrusions are used for limiting the radial position of the lens barrel 31. The arrangement of the three axial protrusions replaces the limitation of the surfaces, the processing difficulty and the processing cost of the first positioning part 232 are reduced, and the precision of the positioning surface of the annular surface contact of the plurality of axial protrusions and the lens cone 31 is only required to be ensured. In other embodiments, the first positioning portion 232 is an annular surface, and the second positioning portion 312 is a plurality of axial protrusions; or the first positioning portion 232 is a plurality of axial protrusions, and the second positioning portion 312 is an annular protrusion, which can also perform pin-type positioning on the lens barrel 31, where the number of the axial protrusions may also be 2 or 4.

The light inlet end of the shell 21 is further provided with a light filter, the light filter is mounted on the outer side of the light inlet through a support, an enlarged inner cavity is formed in one end, connected with the shell 21, of the lens barrel 31, and the light filter of the shell 21 is located in the enlarged inner cavity at the end of the lens barrel 31.

The hand wheel 4 is rotatably sleeved on the lens barrel 31, a spiral groove is formed in the lens barrel 31, the hand wheel 4 is connected with the adjustable optical component 33 in the lens barrel 31 through a connecting piece such as a pin, the pin is arranged in the spiral groove of the lens barrel 31 in a penetrating mode, after the hand wheel 4 rotates, under the limiting effect of the spiral groove of the lens barrel 31, the hand wheel 4 and the adjustable optical component 33 rotate simultaneously in the axial direction, and therefore the hand wheel 4 can be used for adjusting the axial position of the adjustable optical component 33 in the lens barrel 31.

In this embodiment, the optical module 3 is directly connected to the chip module 2, the end of the lens barrel 31 of the optical module 3 is directly connected to the light inlet of the housing 21 of the chip module 2, and there are no other parts between the optical module 3 and the chip module 2, so that the size chain calculation is shorter, the processing and mounting errors are reduced, the alignment accuracy of the optical module 3 and the chip module 2 is improved, and the optical imaging quality is improved; in addition, the optical module 3 is directly connected with the chip module 2, and a part of the optical module 3 is inserted into the handle 1, so that the axial size of the whole endoscope camera 50 is reduced, and the endoscope camera is miniaturized.

In this embodiment, the lens barrel 31 is further provided with a limiting portion 313, the limiting portion 313 is close to and protrudes from the second positioning portion 312, and the second positioning portion 312 is located between the second connecting portion 311 and the limiting portion 313. The limiting portion 313 is an annular protrusion, the end face of the mounting base 23 away from the light inlet 211 abuts against the axial side face of the limiting portion 313, and the limiting portion 313 is used for positioning the depth position of the lens barrel 31 inserted into the mounting base 23, so that the limiting portion 313 can be used for positioning the optical path size of the optical module 3 and the chip module 2. The limiting part 313 is located in the accommodating cavity of the handle 1, the inner side surface of the front cover 5 abuts against the axial side surface of the limiting part 313 of the lens barrel 31, and the front cover 5 plays a role in axial limiting and limits the end part of the optical module 3 in the accommodating cavity 11 of the handle 1. In other embodiments, the position-limiting portion 313 is a plurality of radial protrusions, the plurality of radial protrusions are uniformly distributed on an outer circumference of the lens barrel 31, and the plurality of radial protrusions can also perform a position-limiting function.

In this embodiment, a locking hole is formed in the mounting base 23, a locking screw 233 is installed in the locking hole, an end portion of the locking screw 233 extends into the mounting base 23 and abuts against the lens barrel 31, and the locking screw 233 presses an end portion of the lens barrel 31 in the mounting base 23, so that looseness between the lens barrel 31 and the mounting base 23 can be prevented.

In one embodiment, lens barrel 31 is inserted into mounting seat 23 of housing 2 and fixed by bonding or the like.

In one embodiment, lens barrel 31 and housing 2 are an integral structure, and lens barrel 31 and housing 2 are integrally formed.

In one embodiment, lens barrel 31 can also be sleeved on mounting seat 23 of housing 2, and mounting seat 23 is provided with a cylindrical surface adapted to an inner surface of lens barrel 31.

In one embodiment, an end of lens barrel 31 away from fixed optical assembly 32 is enlarged, and the enlarged end of lens barrel 31 is sleeved on the light inlet end of housing 2. Be equipped with internal thread and location strip in the one end that lens cone 31 enlarges, be equipped with corresponding external screw thread and holding ring on the outer wall of the light inlet end of casing 2, the light inlet end of casing 2 passes through threaded connection and installs in lens cone 31 to install the location through location strip and holding ring, realized optical module 3 and chip module 2's direct accurate connection equally.

In one embodiment, a groove is formed in an end face of a light inlet end of the housing 2, threads are formed in a side wall of the groove, corresponding external threads or internal threads are formed in one end, away from the fixed optical component 32, of the lens barrel 31, one end of the lens barrel 31 is inserted into the groove of the housing 2, and accordingly direct and accurate connection between the optical module 3 and the chip module 2 is achieved.

As shown in fig. 7, in an embodiment, the endoscope camera 50 further includes a fixing bracket 6, the fixing bracket 6 is entirely located in the accommodating cavity of the handle 1, the fixing bracket 6 is used for fixing the chip module 2 on the front cover 5, the chip module 2 is in a square structure, and the chip module 2 is suspended in the accommodating cavity of the handle 1.

Fixed bolster 6 is L type support, is bent by a board and forms, and fixed bolster 6 includes long arm and short arm, and the short arm of fixed bolster 6 pastes on protecgulum 5, and the long arm of fixed bolster 6 pastes on mount pad 23 and casing 21, and the short arm and the long arm of fixed bolster 6 are fixed respectively on protecgulum 5 and casing 21 through the screw, and fixed bolster 6 plays the effect of connecting fixedly, fixes casing 21 on protecgulum 5.

In order to achieve a better fixing effect, the number of the fixing brackets 6 is two, two fixing brackets 6 are installed at the upper and lower ends of the housing 21, and the two fixing brackets 6 jointly fix the housing 21 on the front cover 5. The fixed support 6 is of an L-shaped structure, and the fixed support 6 can be attached to the front cover 5 and the shell 21, so that the whole structure is more compact, the occupied space is small, and the miniaturization of the handle 1 is facilitated.

As shown in fig. 8, the fixing bracket 6 located below is a grounding bracket 7, and the grounding bracket 7 has a function of fixing the chip module 2 and also has an antistatic function. The grounding support 7 is connected with the grounding cable 8, one end of the grounding cable 8 is connected with the long arm of the grounding support 7 through a screw, the other end of the grounding cable extends into the communication cable 81, the grounding support 7 can discharge static electricity contacted by the endoscope camera 50 away from the grounding cable 8, the static electricity is prevented from entering the chip assembly 2, and a protection effect is achieved on components in the chip assembly 2.

The end of the long arm of the grounding bracket 7 extends to the end of the casing 21, the grounding bracket 7 has a long arm, the grounding bracket 7 is simultaneously contacted with the front cover 5, the mounting seat 23 and the casing 21, and the grounding bracket 7 has a larger contact area, so that static electricity contacted by the endoscope camera 50 in the using process can be basically transferred to the grounding bracket 7 and then discharged from the grounding cable 8.

In other embodiments, the number of the fixing brackets 6 may also be four, and four fixing brackets 6 are respectively mounted on four faces of the chip module 2.

In one embodiment, an endoscopic camera 50 is provided, which differs from the above-described embodiments in that: the optical module of the endoscope camera of this embodiment can not adjust the focus, and all optical lenses are all fixed mounting. The concrete embodiment is as follows: adjustable lens mount 331 is fixedly coupled to lens barrel 31.

In this embodiment, handle 1 has the function of holding components and parts and gripping, and handle 1 has holding chamber 11, and the both ends of handle 1 have the opening with holding chamber 11 intercommunication, and the opening at handle 1 both ends is used for connecting communication cable 81 and optical module 3 respectively. The handle 1 is internally provided with the chip module 2, the handle 1 is also provided with a button assembly 12, and the button assembly 12 is connected with the chip module 2 through a cable. The doctor can hold the handle 1 by hand and operate the endoscope camera to image and detect through the button assembly 12.

The chip module 2 includes components such as a sensor and a processor, and the chip module 2 is configured to convert the optical signal into an electrical signal, process the electrical signal, and transmit the electrical signal to the camera host 60 through the communication cable 81 for imaging.

One end of the optical module 3 directly penetrates through the accommodating cavity 11 of the handle 1 to be connected with the chip module 2. One end of the optical module 3 can also be connected with the chip module 2 through the front cover, and the whole optical module 3 is positioned outside the accommodating cavity 11 of the handle 1.

The optical module 3 includes a lens barrel 31, a fixed optical component 32, an adjustable optical component 33 and a bump protection terminal 34, one end of the lens barrel 31 is mounted on an opening of the handle 1 far from the communication cable 81 through a front cover or directly, and the other end of the lens barrel 31 is connected with the optical bayonet 40. The fixed optical component 32 and the adjustable optical component 33 are installed in the lens barrel 31, wherein the adjustable optical component 33 is fixed in the lens barrel 31 by screws or pins, the adjustable optical component 33 is installed in an adjustable manner, the adjustable optical component 33 cannot move after being installed, if the installation position needs to be adjusted, the screws or pins need to be unlocked, the adjustable optical component 33 needs to be unlocked and moved, and then the adjustable optical component 33 is fixed and locked to realize adjustable installation.

In one embodiment, an endoscopic camera 50 is provided, which differs from the above-described embodiments in that: the optical lens is directly fixed and installed in the lens cone.

In this embodiment, the endoscope camera 50 is a camera with a fixed focal length, the endoscope camera includes a lens barrel and an optical assembly, the optical assembly includes a plurality of optical lenses and a spacer ring, the optical lenses include optical lenses for emitting diffused light and parallel light, the emitting surface of the optical lenses is connected with the spacer ring with a through hole, the shape of the through hole of the spacer ring is consistent with the shape of the beam passing through the spacer ring, it is ensured that stray light emitted from the optical lenses can be blocked by the spacer ring at the rear end, and effective light is avoided, so as to improve the imaging quality.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. Variations of the above-described embodiments may be made by those skilled in the art, consistent with the principles of the invention.

Claims

1. An endoscopic camera, comprising:

2. The endoscopic camera according to claim 1, wherein an end of said lens barrel is connected to a light entrance end of said housing.

3. The endoscope camera of claim 1 wherein said light intake end of said housing defines a mounting socket, said mounting socket having a mounting hole, and wherein one end of said lens barrel is inserted into said mounting socket and said lens barrel is axially aligned with said light intake.

4. The endoscope camera according to claim 3, wherein a first connecting portion is provided in the mounting hole of the mounting base, a second connecting portion is provided at an end portion of the lens barrel, and the first connecting portion is connected to the second connecting portion.

5. The endoscopic camera according to claim 4, wherein said first connecting portion is an internal thread and said second connecting portion is an external thread; or the first connecting part is a clamping groove, and the second connecting part is a buckle.

6. The endoscope camera according to claim 4, wherein a first positioning portion axially aligned with the first connecting portion is further provided in the mounting hole of the mounting base, a second positioning portion axially aligned with the second connecting portion is provided at one end of the lens barrel, and the first positioning portion is retained by the second positioning portion.

7. The endoscope camera according to claim 6, wherein said first positioning portion is a plurality of axial protrusions and said second positioning portion is an annular surface; or the first positioning part is an annular surface, and the second positioning part is a plurality of axial bulges.

8. The endoscope camera according to claim 3, wherein said mount is provided with a locking hole, said locking hole is provided with a locking screw, said locking screw locks one end of said barrel in said mount.

9. The endoscope camera head of claim 1, wherein said lens barrel of said optical module and said housing of said chip module are of a unitary construction.

10. An endoscope camera according to any one of claims 3 to 8, characterized in that a front cover is covered on an opening of one end of the handle close to the hand wheel, the front cover is provided with a through hole, the lens barrel is arranged in the through hole of the front cover in a penetrating manner, the housing is connected with the front cover, and the front cover is used for installing a chip module and an optical module in an accommodating cavity of the handle.

11. The endoscope camera head of claim 10, wherein said barrel is provided with a position-limiting portion for limiting an axial position of said barrel.

12. The endoscope camera head of claim 11, wherein said stop portion is captured between said front cover and said mount.

13. The endoscope camera head of claim 11, wherein said stop portion is an annular protrusion or a plurality of radial protrusions disposed on the same circumference.

14. The endoscope camera head of claim 10, further comprising a fixed bracket, wherein the fixed bracket is located in the accommodating cavity of the handle, one end of the fixed bracket is connected with the front cover, and the other end of the fixed bracket is connected with the shell of the chip module.

15. The endoscopic camera according to claim 14, wherein said fixed bracket is an L-shaped structure comprising a long arm abutting said mount and housing, said long arm being connected to said housing, and a short arm abutting said front cover and being connected to said front cover.

16. The endoscopic camera according to claim 15, wherein the long arm and the short arm of said fixed bracket are fixed to said housing and said front cover by screws, respectively.

17. The endoscope camera head of claim 15 wherein said fixed mount has a plurality of said fixed mounts, at least one of said plurality of said fixed mounts being connected to a ground cable.

18. The endoscopic camera according to claim 17, wherein said fixed bracket to which said ground cable is connected is a ground bracket, an end portion of a long arm of which extends to an axial end portion of said housing.

19. An endoscopic camera, comprising:

and the hand wheel is rotatably sleeved on the optical module.

20. The endoscope camera head of claim 19, wherein said chip module is provided with a mounting base having a mounting hole, and wherein an end of said optics module is inserted into said mounting hole of said mounting base.

21. The endoscope camera head of claim 20, wherein said mounting base has a first connecting portion disposed therein, and wherein said optical module has a second connecting portion disposed at an end thereof, said first connecting portion being connected to said second connecting portion.

22. The endoscope camera according to claim 21, wherein a first positioning portion axially aligned with the first connecting portion is further provided in the mounting hole of the mounting base, a second positioning portion axially aligned with the second connecting portion is provided at one end of the optical module, and the first positioning portion is retained by the second positioning portion.

23. An endoscopic camera, comprising:

the chip module comprises a shell and a chip assembly, wherein the shell is arranged in an accommodating cavity of the handle, the chip assembly is arranged in the shell, the shell is provided with a light inlet end, and the light inlet end is provided with a light inlet;

and the optical module comprises a lens barrel and an optical component, one end of the lens barrel is connected with the light inlet end of the shell, the optical component is arranged in the lens barrel, and the optical component is used for transmitting optical signals.

24. The endoscope camera of claim 23, wherein said housing has a mounting base having a mounting hole, and wherein an end of said lens barrel is inserted into said mounting hole of said mounting base.

25. The endoscope camera head of claim 24, wherein said mounting base has a first connecting portion disposed therein, and said lens barrel has a second connecting portion disposed at an end thereof, said first connecting portion being connected to said second connecting portion.

26. The endoscope camera according to claim 25, wherein a first positioning portion axially aligned with the first connecting portion is further provided in the mounting hole of the mounting base, a second positioning portion axially aligned with the second connecting portion is provided at one end of the lens barrel, and the first positioning portion is retained by the second positioning portion.

27. An endoscope camera system, comprising a light source, a light guide bundle, an endoscope, an optical bayonet, a communication cable, a camera main unit, a display, a video connection line, and the endoscope camera head according to any one of claims 1 to 26, wherein the light source is connected to the endoscope through the light guide bundle, one end of the endoscope camera head is connected to the endoscope through the optical bayonet, the other end of the endoscope camera head is connected to the camera main unit through the communication cable, and the camera main unit is connected to the display through the video connection line.