CN211484480U

CN211484480U - Endoscope image pickup system

Info

Publication number: CN211484480U
Application number: CN201921740623.7U
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: 2020-09-15
Anticipated expiration: 2029-10-16

Abstract

An endoscope camera system comprises a light source, a light guide beam, an endoscope, an optical bayonet, a camera host, a display, a video connecting wire and a communication cable, wherein the camera comprises a handle, an optical module and a chip module, the handle is provided with an accommodating cavity, openings communicated with the accommodating cavity are formed in two ends of the handle, the optical module and the chip module are installed on the handle, an installation seat is arranged on the opening of the handle and provided with an installation hole, one end of the communication cable is inserted into the installation hole of the installation seat, a detachable limiting part is installed at the end part of the communication cable, and the communication cable is axially clamped on the installation seat through the limiting part; because the last detachable locating part joint of communication cable is on the mount pad of handle, after the locating part was dismantled down, the inside that the communication cable can insert the handle is connected with the chip module, and the detachable locating part has made things convenient for being connected of chip module in communication cable and the handle, has improved the packaging efficiency.

Description

Endoscope image pickup system

Technical Field

The present application relates to in vivo diagnostic instruments, and in particular to 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 communication cable, a hard tube endoscope, an optical bayonet, a camera host and a display. The communication cable clamps on the camera, and the communication cable is inconvenient to be connected with the chip module inside the camera.

Disclosure of Invention

The application provides a make things convenient for endoscope camera system of communication cable and inside chip module wiring of camera.

One embodiment provides an endoscope camera system, which comprises a light source, a light guide beam, an endoscope, an optical bayonet, a camera host, a display, a video connecting wire and a communication cable, wherein the light source is connected with the endoscope through the light guide beam, one end of the camera is connected with the endoscope through the optical bayonet, the other end of the camera is connected with the camera host through the communication cable, and the camera host is connected with the display through the video connecting wire;

the camera comprises a handle, an optical module and a chip module, wherein the handle is provided with an accommodating cavity, two ends of the handle are provided with openings communicated with the accommodating cavity, the optical module and the chip module are installed on the handle, the opening of the handle is provided with an installation seat, and the installation seat is provided with an installation hole;

one end of the communication cable is inserted into the mounting hole of the mounting seat, a detachable limiting part is mounted at the end of the communication cable, and the communication cable is axially clamped on the mounting seat through the limiting part.

In one embodiment, the mounting seat and the handle are of an integrated structure.

In one embodiment, the stopper is mounted on the communication cable by a screw connection or a snap connection.

In one embodiment, the limiting member is a nut, and the communication cable is provided with an external thread.

In one embodiment, the nut includes a first nut and a second nut mounted side-by-side on the communication cable.

In one embodiment, the mounting seat is further provided with a locking sleeve, the locking sleeve is sleeved on the mounting seat, and the limiting part is clamped between the mounting seat and the locking sleeve.

In one embodiment, an axial table-board is arranged in the locking sleeve, and the limiting member is clamped between the axial table-board of the locking sleeve and the end surface of the mounting seat.

In one embodiment, a sealing ring is arranged between the locking sleeve and the mounting seat, and a sealing ring is arranged between the mounting seat and the communication cable.

In one embodiment, the communication cable includes:

the first connecting head comprises a first front sleeve and a first connecting terminal, the first front sleeve is inserted into the mounting hole of the mounting seat, the first connecting terminal is mounted at one end of the first front sleeve, and the first connecting terminal is used for being connected with a chip module of the camera;

one end of the connecting wire is inserted into the first front sleeve and connected with the first connecting terminal;

and the shielding ring is arranged in the first front sleeve and sleeved on the connecting line, and is used for shielding a mixed signal.

In one embodiment, the shielding ring is a magnetic ring.

In one embodiment, the first connection terminal, the shielding ring and the end of the connection line are fixed in the first front sleeve by solid glue; or the first connecting head is fixed in the first front sleeve through solid glue, and the end parts of the shielding ring and the connecting wire are clamped in the first front sleeve.

In one embodiment, the first front sleeve is provided with grooves and/or protrusions in the area filled with the solid glue.

In one embodiment, the groove is an annular groove and the protrusion is an annular protrusion.

In one embodiment, a ferrule is disposed at an end of the first front sleeve away from the first connection terminal, and the ferrule is clamped between the first front sleeve and the connection line.

In one embodiment, the shielding ring is located between the first connection terminal and the ferrule, and an end of the shielding ring away from the first connection terminal abuts against the ferrule.

In one embodiment, a locking hole is formed in one end, away from the first connection terminal, of the first front sleeve, and a locking screw is installed in the locking hole and used for locking the ferrule and the connection line in the first front sleeve.

In one embodiment, the first connector further comprises a first rear end pipe, one end of the first rear end pipe is sleeved on one end of the first front sleeve far away from the first connecting terminal, and the connecting wire is arranged in the first rear end pipe in a penetrating mode.

In one embodiment, an axial table is formed at the inner narrowing of one end of the first rear end pipe away from the first front sleeve, and the end part of the first front sleeve and the end part of the cutting sleeve are abutted on the table in the first front sleeve.

According to the endoscope camera system of the embodiment, the communication cable is connected with the chip module through the detachable limiting part in a clamped mode on the mounting seat of the handle, and after the limiting part is detached, the communication cable can be inserted into the handle and connected with the chip module.

Drawings

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

FIG. 2 is a schematic view of an embodiment of an endoscope camera;

FIG. 3 is a schematic diagram of the configuration of an endoscopic camera and communication cables in one embodiment;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a cross-sectional view of an endoscope camera communication cable in one embodiment;

FIG. 6 is a cross-sectional view of an endoscope camera and endoscope camera communication cable in one embodiment;

FIG. 7 is a cross-sectional view of an endoscope camera communication cable in one embodiment;

FIG. 8 is a cross-sectional view of an endoscope camera communication cable 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, an embodiment provides an endoscopic camera system 1000, which is described by taking a hard-tube endoscopic camera communication cable as an example, and the endoscopic camera communication cable can also be applied to a soft lens. The endoscopic camera system 1000 includes a light source 10, a light guide 20, a hard tube endoscope 30, an optical bayonet 40, a camera 50, a communication cable 81, a camera host 60, a display 70, and a video connection line 82. The camera main unit 60 is connected to the camera 50 through a communication cable 81, and an image signal obtained by the camera 50 is transmitted to the camera main unit 60 through the communication cable 81 for processing. In certain embodiments, the communication cable 81 may be an optical communication cable, such as an optical fiber; the camera 50 converts an image signal (electrical signal) into an optical signal, and transmits the optical signal to the camera main unit 60 through the communication cable 81, and the camera main unit 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, the camera 50 includes a handle 51, a chip module 52, and an optical module 53.

As shown in fig. 2, the handle 51 has functions of accommodating components and holding, the handle 51 has an accommodating cavity 511, two ends of the handle 51 have openings communicated with the accommodating cavity 511, and the openings at the two ends of the handle 51 are respectively used for connecting the communication cable 81 and the optical module 53. The chip module 2 is housed in the handle 51, and the button assembly 12 is mounted on the handle 51. The doctor can hold the handle 51 by hand and operate the endoscope camera to image and detect through the button assembly 12. A front cover 54 is mounted on an opening at one end of the handle 51, the chip module 52 and the optical module 53 are mounted on the front cover 54, the chip module 52 is located in the accommodating cavity of the handle 51, and the chip module 52 and the optical module 53 are aligned.

The optical module 53 includes a lens barrel 531, a fixed optical component 532, an adjustable optical component 533 and a bump protection terminal 534, one end of the lens barrel 531 is connected to the chip module 52 through an opening of the handle 51, the lens barrel 531 is mounted on the opening of the handle 51 through the front cover 54, and the other end of the lens barrel 531 is connected to the optical bayonet 40. The fixed optical assembly 532 is fixedly mounted at an end of the lens barrel 531 away from the chip module 52, the adjustable optical assembly 533 is axially movably mounted in the lens barrel 531, and the adjustable optical assembly 533 may be capable of moving relative to the fixed optical assembly 532 to adjust the imaging focal length. The optical module 53 is used to irradiate light from the hard tube endoscope 30 to the chip module 52.

The chip module 52 includes components such as a sensor and a processor, and the chip module 2 is configured to convert an optical signal from the optical module 53 into an electrical signal, pre-process the electrical signal, and transmit the electrical signal to the camera host 60 through the communication cable 81 for processing.

As shown in fig. 3, in the present embodiment, a mounting seat 512 is disposed on the other opening of the handle 51, the mounting seat 512 has a mounting hole, the mounting hole of the mounting seat 51 is communicated with the accommodating cavity 511 of the handle 51, the mounting seat 512 is a cylindrical structure, and the mounting seat 512 has a mounting hole. The communication cable 81 is inserted into the mounting hole of the mounting seat 512, the end of the communication cable 81 extends into the accommodating cavity 511 of the handle 51, and the communication cable 81 is connected with the chip module 52 through the transition cable 55.

In this embodiment, the mounting base 512 and the handle 51 are integrated, and in other embodiments, the mounting base 512 can be fixed on the handle 51 by a screw thread or a snap connection.

As shown in fig. 4, in this embodiment, a detachable limiting member 83 is installed on an end portion of the communication cable 81, an external thread is arranged on an outer surface of the end portion of the communication cable 81, the limiting member 83 is a nut, the nut has an internal thread, the nut is installed on the communication cable 81 through a threaded connection, an outer diameter of the nut is larger than an aperture of an installation hole of the installation base 512, so that the nut is clamped on an axial end face of the installation base 512, and the communication cable 81 realizes axial limiting through the nut.

For better fixing the nut, the nut includes first nut 831 and second nut 832, and first nut 831 and second nut 832 are installed on mount pad 512 side by side, and the setting of two nuts has locking effect, has improved locating part 83 and communication cable 81 and is connected stability.

In other embodiments, the limiting member 83 may be a nut or a snap ring, the communication cable 81 is provided with a buckle, the snap ring is mounted on the communication cable 81 in a snap-fit manner, the snap ring and the nut have the same function, are both detachably mounted, and are used for being snapped on the axial end surface of the mounting base 512.

In this embodiment, a detachable limiting member 83 is installed on the communication cable 81, and the limiting member 83 can limit the communication cable 81 to be clamped on the installation base 512. In the installation process, the limiting part 83 can be detached and retracted to the rear end of the communication cable 81, the communication cable 81 can be inserted into the accommodating cavity 511 of the handle 51, the communication cable 81 is connected with the chip module 2 through the transition cable 55, the communication cable 81 is pulled out and installed with the limiting part 83, and finally the communication cable 81 is fixed, so that the detachable limiting part 83 is arranged, and the communication cable 81 is convenient to install.

In order to fix the communication cable 81 better, the end of the mounting base 512 is further connected with a locking sleeve 513, one end of the locking sleeve 513 is sleeved on the mounting base 512 in a threaded connection mode, and the communication cable 81 is arranged in the locking sleeve 513 in a penetrating mode. The locking sleeve 513 is provided with a narrowing in its inner bore at the end adjacent the mounting socket 512, the narrowing being a mounting hole of smaller inner diameter, thereby forming an axial table at the narrowing. The stopper 83 is clamped between an axial face of the locking sleeve 513 and an axial end face of the mounting base 512, and the locking sleeve 513 locks the communication cable 81 to the mounting base 512.

In one embodiment, an annular groove is formed on the outer surface of the mounting base 512, a sealing ring 514 is installed in the annular groove of the mounting base 512, and the sealing ring 514 is compressed between the mounting base 512 and the locking sleeve 513, so that water can be prevented from entering the accommodating cavity 511 of the handle 51 from the space between the mounting base 512 and the locking sleeve 513.

The outer surface of the communication cable 81 is provided with an annular groove, a sealing ring 515 is installed in the annular groove of the communication cable 81, the sealing ring 515 is tightly pressed between the communication cable 81 and the mounting seat 512, and water can be prevented from entering the accommodating cavity 511 of the handle 51 from the space between the communication cable 81 and the mounting seat 512.

As shown in fig. 5 and 6, in one embodiment, the communication cable 81 includes a first connector 1, a connecting wire 2, a second connector 3, and a shielding ring 4, two ends of the connecting wire 2 are respectively connected to the first connector 1 and the second connector 3, the first connector 1 is used for connecting with the camera 50, the second connector 3 is used for connecting with the camera host 60, and the shielding ring 4 is installed in the first connector 1.

The first connector 1 includes a first front sleeve 11, a first rear sleeve 12 and a first connection terminal 13, the first front sleeve 11 and the first rear sleeve 12 are clamped together, the first front sleeve 11 and the first rear sleeve 12 may also be an integrated structure, and in some embodiments, the first rear sleeve 12 may also be omitted.

As shown in fig. 7, one end of the first connection terminal 13 is exposed out of the first front sleeve 11, and the other end is fixed in the first front sleeve 11 by a solid adhesive 11a, and an interface 13a is provided at the end of the first connection terminal 13 exposed out of the first connection terminal 13. One end of the connection wire 2 is inserted into the first front sleeve 11 from an end of the first front sleeve 11 away from the first connection terminal 13, and the end of the connection wire 2 inserted into the first front sleeve 11 extends to be connected with the first connection terminal 13. One end of the first front sleeve 11, which is provided with the first connection terminal 13, is adapted to the mounting seat 512 of the handle 51, the first front sleeve 11 is used for being inserted onto the mounting seat 512 of the handle 51, one end of the first connection terminal 13, which is exposed out of the first connection terminal 13, extends into the accommodating cavity 511 of the handle 51, and the interface 13a of the first connection terminal 13 is used for being connected with the chip module 52 in the handle 51 through the transition cable 55.

The outer surface of the first front sleeve 11 is provided with an annular groove, a sealing ring 515 is installed in the annular groove, the sealing ring 515 is clamped between the mounting seat 512 of the handle 51 and the first front sleeve 11, and water can be prevented from entering the accommodating cavity of the handle 51 from the space between the mounting seat 512 of the handle 51 and the first front sleeve 11.

The shield ring 4 is installed in first preceding sleeve pipe 11, and the cover is established on connecting wire 2, shield ring 4 is the magnetic ring, shield ring 4 forms the magnetic field at first preceding sleeve pipe 11, shield ring 4 is the magnetic material of pre-selection, make shield ring 4 shield miscellaneous signal to the interference of connecting wire 2 transmission signal, communication cable 81 signal transmission quality has been improved, shield ring 4 installs in first connecting terminal 13 simultaneously, the holding chamber of handle 51 need not to set up the space that holds shield ring 4, the volume of handle 51 has been reduced, make things convenient for the handheld handle 51 operation of doctor.

One end of the shielding ring 4 and the first connecting terminal 13 and the end of the connecting wire 2 are fixed in the first front sleeve 11 through solid glue 11a, the shielding ring 4 is encapsulated in the first front sleeve 11 through the solid glue 11a, and the shielding ring 4 and the first front sleeve 11 form an integrated structure. And shield ring 4 installs in the holding intracavity of handle 51 among the prior art, and the mode that adopts the mount pad is fixed usually, appears the not hard up problem of shield ring 4 easily, compares prior art this application shield ring 4 built-in at first connecting terminal 13 stable in structure, can not appear phenomenons such as not hard up.

For better encapsulation shielding ring 4, first connection terminal 13 and connecting wire 2, be provided with annular groove 11b in first front sleeve 11 near the one end of first connection terminal 13, solid-state glue 11a extends to and fills to annular groove 11b in for the solid-state glue forms one and has the bellied structure of annular, solidified solid-state glue 11a will pass through annular protruding card in annular groove 11b, the axial degree of freedom of solid-state glue 11a has been restricted, encapsulation shielding ring 4 has been guaranteed, first connection terminal 13, connecting wire 2 and solid-state glue 11a can not the axial roll-off first front sleeve 11 together. In other embodiments, an annular protrusion, or several separate smaller protrusions or grooves, may be provided in the first front sleeve 11 to also serve as an axial stop.

For better fixed connecting wire 3, cutting ferrule 14 is installed to the one end that first front sleeve 11 kept away from first connection terminal 13, and cutting ferrule 14 is located between first front sleeve 11 and connecting wire 2, and connecting wire 2 passes through cutting ferrule 14 locking in first front sleeve 11, has avoided the not hard up of connecting wire. The cutting ferrule 14 is further provided with an annular clamping groove, a sealing ring 15a is installed in the annular clamping groove, the sealing ring 15a is extruded between the cutting ferrule 14 and the first front sleeve 11, and water can be prevented from entering the first front sleeve 11 along the connecting line 2.

In this embodiment, a locking hole is formed at an end of the first front sleeve 11 away from the first connection terminal 13, a locking screw 16 is installed in the locking hole, the locking screw 16 presses the outer wall of the ferrule 14, and the ferrule 14 and the connection line 2 are locked in the first front sleeve 11 by the locking screw 16.

In other embodiments, one end of the first connection terminal 13 is fixed in the first front sleeve 11 by the solid glue 11a, the connection line 2 is clamped in the first front sleeve 11 by the ferrule 14, and two ends of the shielding ring 4 respectively abut against the end face of the first connection terminal 13 and the end face of the ferrule 14, so that the first connection terminal 13, the ferrule 14 and the shielding ring 4 can be also fixed in the first front sleeve 11.

In this embodiment, a narrowed mounting portion is disposed on an outer surface of one end of the first front sleeve 11, which is far away from the first connection terminal 13, one end of the first rear sleeve 12 is inserted into the mounting portion of the first connection terminal 13, a groove and a protrusion are disposed on the mounting portion of the first connection terminal 13, a corresponding protrusion and a corresponding groove are disposed on an inner surface of the first rear sleeve 12, and the first rear sleeve 12 is fastened to the first front sleeve 11 through elastic deformation.

The inside narrowing setting of one end of sleeve 11 is kept away from to first back sleeve pipe 12, forms the axial mesa in the narrowing department, the hole of narrowing can only hold connecting wire 2, first preceding sleeve pipe 11 and cutting ferrule 14 cartridge are in the one end of first back sleeve pipe 12, and the tip of first preceding sleeve pipe 11 and the tip of cutting ferrule 14 all support and lean on the axial mesa of first back sleeve pipe 12 narrowing department, first back sleeve pipe 12 forms the axial spacingly to first preceding sleeve pipe 11 and cutting ferrule 14, has further prevented deviating from of cutting ferrule 14 and connecting wire 2.

In this embodiment, the second connector 3 is the same as the first connector 1 in structure, the second connector 3 includes a second front sleeve, a second rear sleeve and a second connecting terminal, one end of the connecting wire 2 far away from the first connector 1 is connected with the second connecting terminal, the second front sleeve is connected with the second rear sleeve in a clamping manner, the end parts of the second connecting terminal and the connecting wire are fixed in the second front sleeve, and the second rear sleeve plays a role in further axial fixation.

In other embodiments, the second connector 3 may also be configured to have a different structure from the first connector 1, for example, the second connector 3 is only a clamping member, the connecting cable 2 is clamped to the camera host 60, and the connecting cable 2 is directly connected to a main board of the camera host 60.

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. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. An endoscope camera system is characterized by comprising a light source, a light guide beam, an endoscope, an optical bayonet, a camera host, a display, a video connecting wire and a communication cable, wherein the light source is connected with the endoscope through the light guide beam;

one end of the communication cable is inserted into the mounting hole of the mounting seat, a detachable limiting piece is mounted at the end of the communication cable, and the communication cable is axially clamped on the mounting seat through the limiting piece.

2. The endoscopic camera system according to claim 1, wherein said mount is of integral construction with said handle.

3. The endoscopic camera system according to claim 1, wherein said stopper is mounted on said communication cable by means of a screw connection or a snap connection.

4. The endoscopic camera system according to claim 3, wherein said stop is a nut and said communication cable is provided with an external thread.

5. The endoscopic camera system according to claim 4, wherein said nut comprises a first nut and a second nut mounted side by side on said communication cable.

6. An endoscope camera system according to any one of claims 1-5 and wherein said mounting base is further provided with a locking sleeve, said locking sleeve is sleeved on said mounting base, and said position-limiting member is clamped between said mounting base and said locking sleeve.

7. The endoscopic camera system according to claim 6, wherein an axial table is provided in said lock sleeve, and said position-limiting member is engaged with said axial table of said lock sleeve and an end surface of said mount base.

8. An endoscopic camera system according to claim 6, wherein a sealing ring is provided between said locking collar and said mounting seat, and a sealing ring is provided between said mounting seat and said communication cable.

9. An endoscopic imaging system according to any one of claims 1 to 5, wherein said communication cable comprises:

10. An endoscopic camera system according to claim 9, wherein said shielding ring is a magnetic ring.

11. An endoscopic camera system according to claim 9, characterized in that the ends of said first connection terminal, shielding ring and connection line are fixed inside said first front sleeve by means of solid glue; or the first connecting head is fixed in the first front sleeve through solid glue, and the end parts of the shielding ring and the connecting wire are clamped in the first front sleeve.

12. An endoscopy camera system according to claim 11, wherein said first front sleeve is provided with grooves and/or protrusions in the region filled with said solid glue.

13. The endoscopic camera system according to claim 12, wherein said recess is an annular recess and said projection is an annular projection.

14. An endoscope camera system according to claim 9 and wherein said first front sleeve is provided with a ferrule at an end remote from said first connection terminal, said ferrule being engaged between said first front sleeve and said connection line.

15. An endoscopic camera system according to claim 14, wherein said shield ring is located between said first connection terminal and a ferrule against which an end of said shield ring remote from said first connection terminal abuts.

16. An endoscope camera system according to claim 14 and wherein said first front sleeve is provided with a locking hole at an end thereof remote from said first connection terminal, said locking hole having a locking screw mounted therein for locking said ferrule and connection wire within said first front sleeve.

17. An endoscope camera system according to claim 14 and wherein said first connector further comprises a first rear tube, one end of said first rear tube being fitted over an end of said first front sleeve remote from said first connection terminal, said connection wire being passed through said first rear tube.

18. An endoscopy camera system according to claim 17, wherein an internal narrowing of the end of said first rear tube remote from said first front sleeve forms an axial table, the end of said first front sleeve and the end of said ferrule abutting against the table in said first front sleeve.