WO2023123202A1

WO2023123202A1 - Endoscope camera system and electrical connector, camera main unit, and signal transmission cable thereof

Info

Publication number: WO2023123202A1
Application number: PCT/CN2021/143064
Authority: WO
Inventors: 焦坤
Original assignee: 深圳迈瑞生物医疗电子股份有限公司
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-07-06
Also published as: CN118120117A

Abstract

An endoscope camera system (1000) and an electrical connector (80), endoscope camera main unit (50), and signal transmission cable (71) thereof. The electrical connector (80) comprises: a first terminal (1), which is provided with a connection cavity (11), one end of the connection cavity (11) being provided with an insertion opening; an elastic connection member (12) is provided within the connection cavity (11), the elastic connection member (12) comprising a wire spring (121) and/or a crown spring; and a second terminal (2), the second terminal (2) having a connection portion (21), and the connection portion (21) being used for being inserted into the connection cavity (11) and connected to the wire spring (121). Due to the wire spring (121) being an elastic linear structure, the connection between the wire spring (121) and the second terminal (2) forms an elastic point contact and/or line contact, which can ensure the stability of the connection between the first terminal (1) and the second terminal (2), and contact area is reduced, which can prevent foreign matter from remaining on the contact surface when repeated insertion and pull-out is performed, and can consequently ensure that the electrical connector (80) of the endoscope camera system (1000) performs stable, high-speed signal transmission for an extended period of time; also, due to the implementation of the elastic connection by use of the wire spring (121), the first terminal (1) and the second terminal (2) are highly adaptable, and there are low installation requirements, and consequently same is suitable for frequent disinfection and sterilization.

Description

Endoscope camera system and its electrical connector, camera host, signal transmission cable

technical field

The invention relates to the technical field of medical devices, in particular to an endoscope camera system and its electrical connector, an endoscope camera host, and a signal transmission cable.

Background technique

With the development of technology and the need to reduce the trauma of patients, minimally invasive surgery is becoming more and more popular and widely used. Minimally invasive surgery not only requires the leading surgeon to have rich anatomical knowledge and skilled medical operation technology, but also requires sophisticated Advanced surgical instruments, advanced imaging equipment, etc. are used as assistance and guarantee. As a high-tech medical imaging device, endoscope is an important tool for doctors to peep into the internal organs of patients (abdominal cavity, chest cavity, bladder and other key parts) during surgery. The scope of vision, using scientific and technological means to help doctors observe and locate lesions, so that surgery can be carried out safely under visible conditions. Endoscopes are already essential equipment for surgeons to perform minimally invasive surgery.

Endoscope is composed of light source lighting part, optical lens, image sensing part, signal output signal transmission cable, signal processing and control host and display device. With the complex and changeable medical environment and the high requirements of precision medicine, Based on basic visual functions, endoscopic equipment is required to have higher clarity and resolution, higher reliability and more functions (fluorescence, 3D and other display requirements), while 4K high-definition high-resolution and 3D and other new Functions require that the endoscope can collect, transmit, and process higher rates and larger data volumes. At present, video data acquisition and high-speed data transmission in the structural composition of endoscopes are realized by using front-end cameras and transmission cables. The structural design is for convenience. After the operation, the signal transmission cable can be flexibly disinfected and sterilized. The host of the medical equipment and the high-speed signal transmission cable are designed to be separable, which requires the signal transmission cable of the medical equipment to be equipped with the host interface. High-speed connector implementation of the connection.

At present, the connectors of the high-speed connection lines between the host computer and the camera of medical equipment mainly include photoelectric hybrid connectors and electrical connectors. Among them, the photoelectric hybrid connectors are expensive, difficult to install, and easy to pollute on the surface, so they cannot adapt to frequent medical environments. Disinfection and sterilization; electrical connectors mainly have two methods of gold finger and circular plugging. Both methods are prone to foreign objects on the contact surface, which cannot guarantee the stability of connection transmission, and thus cannot be applied to high-speed signal transmission.

technical problem

technical solution

In one embodiment, an electrical connector for an endoscope camera system is provided, including:

The first terminal is provided with a signal connector and a fixing ring, and the two ends of the signal connector are respectively connected to the fixing ring, and the signal connector is connected to the fixing ring to form a a tubular structure having a median diameter smaller than the opening at at least one end; and

A second terminal, the diameter of the connecting portion of the second terminal is smaller than the opening of the tubular structure and greater than the middle diameter of the tubular structure.

In one embodiment, the signal connection part is a wire or sheet metal part.

In one embodiment, the signal connector includes a wire spring and/or a crown spring.

In one embodiment, the signal connector is a linear structure, and the length direction of the signal connector is inclined relative to the insertion direction of the connecting part.

In one embodiment, the signal connector has a curved structure, and the middle part of the signal connector is concavely bent.

In one embodiment, a connection cavity is provided in the first terminal, and the tubular structure is arranged in the connection cavity in a floating manner.

In one embodiment, there is a floating gap between the tubular structure and the inner wall of the connecting cavity in a direction perpendicular to the insertion of the connecting part.

In one embodiment, the fixing ring includes a first fixing ring and a second fixing ring, and two ends of the signal connector are respectively connected to the first fixing ring and the second fixing ring.

In one embodiment, the end of the first terminal away from the second terminal is provided with a plug-in part, one end of the plug-in part is plugged into the tubular structure, and the other end of the plug-in part protrudes The second terminal is used for connecting with the socket on the camera host or the signal transmission cable in the endoscopic camera system.

In one embodiment, the fixed ring includes a first fixed ring, a second fixed ring and a third fixed ring distributed axially at intervals in sequence, the signal connectors include a first group and a second group, and the first The two ends of the group are respectively connected with the first fixed ring and the second fixed ring to form a first tubular structure, and the two ends of the second group are respectively connected with the second fixed ring and the third fixed ring connected to form a second tubular structure, and the first tubular structure is used to mate with the connecting portion of the second terminal.

In one embodiment, the end of the first terminal away from the second terminal is provided with a plug-in part, one end of the plug-in part is plugged into the second tubular structure, and the other end of the plug-in part One end protrudes from the second terminal and is used to connect with the socket hole on the camera host or the signal transmission cable in the endoscopic camera system.

In one embodiment, multiple first terminals and multiple second terminals are included.

a first terminal, the first terminal has a connection cavity, one end of the connection cavity is provided with a plug-in port, and an elastic connector is provided in the connection cavity, and the elastic connector includes a signal connector; and

A second terminal, the second terminal has a connecting portion, and the connecting portion is used for inserting into the connecting cavity and electrically connecting with the wire spring, so as to transmit electrical signals in the endoscope camera system.

In one embodiment, the signal connection part is a wire or sheet metal part.

In one embodiment, the signal connecting member encloses an elastic tube, and the elastic tube is used for inserting into the connecting part.

In one embodiment, part or all of the inner diameter of the elastic tube is smaller than the outer diameter of the connection part, and the elastic tube is used to connect with the connection part through elastic deformation.

In one embodiment, the middle part of the elastic tube is narrowed.

In one embodiment, the wire spring is a straight line structure, and the length direction of the wire spring is parallel and/or inclined relative to the insertion direction of the connecting part.

In one embodiment, the elastic connector further includes a first fixing ring and a second fixing ring, one end of the wire spring is connected to the first fixing ring, and the other end of the signal connecting member is connected to the second fixing ring. The two fixing rings are connected.

In one embodiment, the elastic connecting piece is disposed in the connecting cavity in a floating manner, and the elastic connecting piece is used for mating with the connecting portion in a floating manner.

In one embodiment, there is a floating gap between the elastic connecting piece and the inner wall of the connecting cavity in a direction perpendicular to the insertion of the connecting portion.

In one embodiment, the end of the first terminal away from the plug-in interface is provided with a plug-in part, and the plug-in part is used for plugging into the camera host or the signal transmission cable in the endoscopic camera system. socket electrical connection.

In one embodiment, the insertion part is an elastic structure, and part or all of the outer diameter of the insertion part is larger than the inner diameter of the insertion hole of the medical device.

In one embodiment, the outer diameter of the middle part of the insertion part is larger than the outer diameters of both ends of the insertion part, and an opening is provided in the middle part of the insertion part.

a first terminal having a socket cavity; and

The second terminal, the second terminal has a connecting part, and the connecting part is used to insert into the insertion cavity and make point contact and/or wire electrical connection with the inner wall of the insertion cavity, so as to transmit the endoscope camera system electrical signal in.

In one embodiment, the insertion cavity is a tubular structure, part or all of the inner diameter of the insertion cavity is smaller than the outer diameter of the connection part, and the insertion cavity is used to connect with the connection part through elastic deformation.

In one embodiment, a signal connector is provided inside the first terminal, the signal connector encloses the insertion cavity, and the wire spring is in point contact and/or wire-connected with the connecting portion.

In one embodiment, the plug-in cavity is a floating structure, and the plug-in cavity is used for floatingly adapting to plug-in of the connecting part.

In one embodiment, the end of the first terminal far away from the second terminal is provided with a plug-in part, and the plug-in part is connected to the camera host or the signal transmission cable in the endoscopic camera system. socket electrical connection.

In one embodiment, the insertion part is an elastic structure, and part or all of the outer diameter of the insertion part is larger than the inner diameter of the insertion hole on the camera host or the signal transmission cable in the endoscopic camera system.

a first terminal, the first terminal has a connection cavity, one end of the connection cavity is provided with a plug-in port, and an elastic wall is provided in the connection cavity; and

The second terminal, the second terminal has a connecting part, the connecting part is used to insert into the insertion cavity, and make point contact and/or wire electrical connection with the elastic wall of the insertion cavity, so as to transmit the endoscope Electrical signals in the mirror camera system.

In one embodiment, a wire spring and/or a crown spring are provided in the connection cavity, the wire spring and/or crown spring constitute the elastic wall, and the wire spring is in point contact with the connection part and/or the wire connect.

In one embodiment, the elastic wall encloses a tubular structure, part or all of the inner diameter of the tubular structure is smaller than the outer diameter of the connecting portion, and the elastic wall is used to connect with the connecting portion through elastic deformation.

In one embodiment, the elastic wall is a floating structure, and the elastic wall is used to float and adapt to the insertion of the connecting part.

In one embodiment, the end of the first terminal away from the second terminal is provided with a plug-in part, and the plug-in part is used to connect with the camera host or the signal transmission cable in the endoscopic camera system. Socket electrical connection.

In one embodiment, an electrical connector for an endoscope camera system is provided, including a first terminal, the first terminal has a connection cavity, one end of the connection cavity is provided with a plug-in port, and the connection cavity An elastic connector is provided inside, and the elastic connector includes a signal connector, which is used to form an electrical connection with the inserted terminal point contact and/or line contact, so as to transmit the signal in the endoscope camera system. electric signal.

In one embodiment, an end of the first terminal far away from the socket is provided with a socket portion, and the socket portion is used for electrical connection with a socket hole of a medical device.

In one embodiment, an endoscope camera host is provided, including a box body and a processor, the processor is arranged in the box body, and the processor is used for processing electrical signals and outputting processed images, The outer side of the box body is provided with an electrical connector socket end, and the electrical connector socket end includes a signal jack, and the signal jack is used to plug into the terminal of the signal transmission cable in the endoscopic camera system. The signal jack is electrically connected with the terminal point contact and/or line contact of the signal transmission cable, so as to obtain the electrical signal and transmit it to the processor.

In one embodiment, a signal connector is provided in the signal jack, and the signal connector includes a wire spring and/or a crown spring, and the wire spring and/or crown spring encloses an elastic tube, and the elastic The tube is used for inserting the terminal of the signal transmission cable.

In one embodiment, part or all of the inner diameter of the elastic tube is smaller than the outer diameter of the terminal of the signal transmission cable, and the elastic tube is used to connect with the terminal of the signal transmission cable through elastic deformation.

In one embodiment, the middle part of the elastic tube is narrowed.

In one embodiment, the wire spring is a straight line structure, and the length direction of the wire spring is parallel and/or inclined relative to the insertion direction of the terminal of the signal transmission cable.

In one embodiment, the signal connecting member can be floatingly arranged in the signal jack.

In one embodiment, there is a floating gap between the signal connector and the inner wall of the signal jack in a direction perpendicular to the insertion direction of the signal transmission cable terminal.

In one embodiment, a signal transmission cable for an endoscope camera system is provided, characterized in that it includes a first connection end, a second connection end, and a cable located between the first connection end and the second connection end. The cable part between, the first connecting end is used for connecting with the endoscope camera, and the second connecting end is used for connecting with the camera host; the second connecting end is provided with a signal jack, and the signal jack is The holes are used to be plugged into the host terminals of the camera host, and to form electrical connections with the host terminals by point contact and/or line contact, so as to transmit electrical signals to the camera host.

In one embodiment, the signal jack is provided with an elastic connector, the signal connector includes a wire spring and/or a crown spring, and the wire spring and/or crown spring encloses an elastic tube, and the elastic The tube is used to insert the host terminal.

In one embodiment, part or all of the inner diameter of the elastic tube is smaller than the outer diameter of the host terminal, and the elastic tube is used to connect with the host terminal through elastic deformation.

In one embodiment, the middle part of the elastic tube is narrowed.

In one embodiment, the wire spring is a straight line structure, and the length direction of the wire spring is parallel and/or inclined relative to the insertion direction of the host terminal.

In one embodiment, an endoscope camera system is provided, which includes a light source, a light guide, an endoscope, a camera, a signal transmission cable, a camera host, and the above-mentioned electrical connector for the endoscope camera system, The light source is connected to the endoscope through the light guide, one end of the endoscope camera is connected to the endoscope, and the other end of the camera is connected to one end of the signal transmission cable. The other end of the signal transmission cable is connected to the camera host through the electrical connector for the endoscope camera system; the endoscope includes an illumination optical path and an imaging optical path, and the illumination optical path is connected to the light guide Docking, the imaging optical path is docked with the camera.

Beneficial effect

According to the electrical connector for the endoscope camera system of the above-mentioned embodiment, the first terminal is provided with a signal connector, and the connecting part of the second terminal is connected with the wire spring to realize electrical connection and signal connection. Since the wire spring is elastic The linear structure, the connection between the wire spring and the second terminal forms elastic point contact and/or line contact, which can ensure the stability of the connection between the first terminal and the second terminal, and the contact between the first terminal and the second terminal The method is point contact and/or line contact, which reduces the contact area and can avoid foreign matter remaining on the contact surface during repeated plugging and unplugging, thereby ensuring the long-term stable high-speed transmission signal of the electrical connector used in the endoscope camera system ; At the same time, due to the use of wire springs to achieve elastic connection, the adaptability of the first terminal and the second terminal is strong, and the installation requirements are low, so that it can adapt to frequent disinfection and sterilization in medical environments.

Description of drawings

Fig. 1 is a schematic structural view of an electrical connector in an embodiment;

Fig. 2 is a partial axial sectional view of a first terminal in an embodiment;

Fig. 3 is a schematic structural view of an elastic connector in an embodiment;

Fig. 4 is an axial schematic diagram of an elastic connector in an embodiment;

Fig. 5 is a schematic structural diagram of plugging the first terminal and the second terminal in an embodiment;

Fig. 6 is a schematic structural view of the connection part of the second terminal plugged with the elastic connector in an embodiment;

Fig. 7 is an axial schematic diagram of the connection part of the second terminal plugged with the elastic connector in an embodiment;

Fig. 8 is a schematic structural diagram of plugging the first terminal and the second terminal in an embodiment;

Fig. 9 is a schematic diagram of a partial structure of plugging a first terminal and a second terminal in an embodiment;

Fig. 10 is a schematic structural diagram of the plug-in part of the first terminal in an embodiment;

Fig. 11 is a structural schematic diagram of the connection between the plug-in part of the first terminal and the camera host in an embodiment;

Fig. 12 is a schematic diagram of the impedance of an electrical connector in an embodiment;

Fig. 13 is a schematic diagram of echo damage of an electrical connector in an embodiment;

Fig. 14 is a schematic structural view of an elastic connector in an embodiment;

Fig. 15 is a schematic structural view of an electrical connector in an embodiment;

Fig. 16 is a partial structural schematic diagram of an electrical connector in an embodiment;

Fig. 17 is a schematic structural view of a camera host of an endoscope camera system in an embodiment;

Fig. 18 is a schematic structural diagram of a signal transmission cable of an endoscope camera system in an embodiment;

Fig. 19 is a schematic structural diagram of an endoscope camera system in an embodiment;

Wherein the reference signs are as follows:

1-first terminal, 11-connecting cavity, 12-elastic connector, 121-wire spring, 122-first fixing ring, 123-second fixing ring, 13-socket part, 131-opening, 2-second Terminal, 21-connection part; 3-box body, 31-electric connector socket end, 41-first connection end, 42-second connection end, 43-cable part;

10-light source, 20-light guide, 30-endoscope, 40-camera, 50-camera host, 60-display, 71-signal transmission cable, 72-video connection line, 80-for endoscope camera system 100—the part to be observed, 1000—the endoscope camera system.

Embodiments of the present invention

The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and general technical knowledge in the field.

In addition, the characteristics, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. At the same time, the steps or actions in the method description can also be exchanged or adjusted in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment, and do not mean a necessary sequence, unless otherwise stated that a certain sequence must be followed.

The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application include direct and indirect connection (connection) unless otherwise specified.

In one embodiment, an electrical connector for an endoscope camera system is provided, and the electrical connector for the endoscope camera system is used to be installed between a signal transmission cable of a medical device and a host computer of the medical device, Electrical connectors for endoscopic camera systems are used for electrical signal and power transmission of medical equipment. For example, the electrical connector for the endoscopic camera system is applied to the endoscopic camera system, the electrical connector for the endoscopic camera system is connected to the signal transmission cable of the endoscopic camera system and the camera of the endoscopic camera system Between the hosts, the electrical connector for the endoscope camera system is used to transmit the imaging signal generated by the endoscope camera to the camera host to realize imaging.

Please refer to Fig. 1, the electrical connector for the endoscope camera system in this embodiment mainly includes a first terminal 1 and a second terminal 2, the first terminal 1 is a female terminal, and the second terminal 2 is a male terminal , the second terminal 2 can be inserted into the first terminal 1 to form an electrical connection. The first terminal 1 is preferably installed on the main body of the endoscope, the second terminal 2 is preferably installed on the signal transmission cable of the endoscope, and the male head is located on the outside to facilitate plugging and unplugging operations. Of course, the first terminal 1 is installed on the signal transmission cable of the endoscope, and the second terminal 2 is installed on the host of the endoscope, so that detachable electrical connection can also be realized.

Please refer to Fig. 2 and Fig. 5, the body of the first terminal 1 has a connection cavity 11, and one end of the connection cavity 11 has a plug port, the plug port communicates with the connection cavity 11, and the plug port is used for inserting the second terminal 2 into the connection cavity within 11. The connecting cavity 11 of the first terminal 1 is provided with an elastic connecting member 12, and the elastic connecting member 12 includes an elastic member made of metal conductive material. The second terminal 2 has a protruding connecting portion 21, the connecting portion 21 is preferably a columnar structure, the entire connecting portion 21 is made of metal conductive material, or all or part of the outer peripheral surface of the connecting portion 21 is made of metal conductive material. The connecting part 21 is used to be inserted into the connecting cavity 11 through the socket to connect with the elastic connector 12 , and the metal conductive material on the connecting part 21 is in contact with the elastic part of the elastic connector 12 to form an electrical connection. The end of the connecting portion 21 is preferably spherical or has an inclined guiding structure, so that the connecting portion 21 can be inserted into the connecting cavity 11 and connected with the elastic connecting member 12 more easily.

The elastic connecting member 12 is preferably a circular tubular structure, and the inner diameter of the tubular structure is adapted to the outer diameter of the connecting portion 21 so that the connecting portion 21 can be inserted into the elastic connecting member 12 of the tubular structure. The elastic connector 12 can also be arranged in a square tube shape, or include two opposite elastic connection surfaces, and the connecting portion 21 is arranged in a structure corresponding to the elastic connector 12 , which can also realize the electrical connection between the connecting portion 21 and the elastic connector 12 .

Please refer to Fig. 3 and Fig. 4, the elastic connector 12 includes a signal connector, the signal connector may include a wire spring or a crown spring, the signal connector may be composed of a wire spring alone, may be composed of a crown spring alone, or may be composed of a wire spring It is composed of a mixture of crown springs, wherein the wire springs are wire-shaped metal parts, and the crown springs are sheet metal parts. In this embodiment, the signal connector includes a plurality of wire springs 121 , and the number of wire springs 121 can be set according to the size of the first terminal 1 , for example, the wire springs 121 include 8 or 10 wire springs. A plurality of wire springs 121 surround a circular tubular structure, that is, a plurality of wire springs 121 are evenly distributed on a circumferential surface, and there is a certain gap between the wire springs 121 . The wire spring 121 is a line structure of metal conductive material. The wire spring 121 has conductivity and certain elastic deformation ability. connect.

Please refer to Fig. 3, Fig. 4, Fig. 6 and Fig. 7. In this embodiment, a tubular structure surrounded by a plurality of wire springs 121 forms a plugging chamber, and the inner wall of the plugging chamber is an elastic wall, and the elastic wall includes a plurality of wires. The inner diameter of the middle part of the insertion cavity is slightly smaller than the outer diameter of the connection part 21, and the outer diameter of the connection part 21 is smaller than the inner diameter of the opening of the insertion cavity. The wire spring 121 is bound on the connection part 21 by elastic deformation to improve the stability of the electrical connection. In the plugged state, the connecting part 21 is inserted into the socket cavity surrounded by a plurality of wire springs 121, and is connected with the elastic wall of the socket cavity. The connecting part 21 and the elastic wall of the socket cavity are mainly in line contact. structure, after the wire spring 121 has been plugged and pulled out for many times, it is not ruled out that local protrusions form point contacts. The connection part 21 and the wire spring 121 form a line connection and/or point contact, which can reduce the friction between the connection part 21 and the wire spring 121, and facilitate the insertion and removal of the connection part 21, while the linear elastic deformation of the wire spring 121 is conducive to The wire spring 121 is always around the connecting portion 21 to ensure the stability of the electrical connection.

In this embodiment, the wire spring 121 is a straight line structure, and the length direction of the wire spring 121 is inclined relative to the direction in which the connecting portion 21 is inserted. The direction is inclined by 30°-50°, and the inclinations of the plurality of wire springs 121 are inclined in the same direction, so that the plurality of wire springs 121 form a double trumpet tube structure with gradually narrowing in the middle and gradually enlarged at both ends. Wherein, the inner diameter of the middle part of the double horn tube structure is smaller than the outer diameter of the connecting part 21 , and the outer diameters of both ends of the double horn tube structure are set to be equal to, slightly smaller than or slightly larger than the outer diameter of the connecting part 21 . When inserting, the connecting part 21 is inserted from one end of the double trumpet pipe structure, and the middle part is gradually stretched; binding force, thereby improving the stability of the electrical connection of the two terminals; in addition, the wire spring 121 is still a straight line structure, and the wire spring 121 is not bent. Under the effect of tightening the two ends of the wire spring 121, the wire spring 121 is It is easy to return to a straight line, and the wire spring 121 arranged obliquely on the straight line is more suitable for frequent plugging and unplugging operations.

In some embodiments, the wire spring 121 is a curved structure extending along the axial direction, and the middle part of the wire spring 121 is concavely set, and the wire spring 121 with a concave curve can also form a double trumpet structure or a narrowed middle structure. The stability of the electrical connection of the two terminals can be improved.

In some embodiments, the wire spring 121 is a helical structure extending helically along the tubular surface, and a plurality of wire springs 121 form mutually parallel helical lines. Smaller than the outer diameter of the connecting portion 21 , the wire connection and/or point contact between the wire spring 121 and the connecting portion 21 can also be realized, thereby improving the stability of the electrical connection of the two terminals.

In some embodiments, the wire spring 121 is a curved structure extending along the axial direction, the wire spring 121 is a wave-shaped structure, and the crest points of multiple wire springs 121 facing inward form a point-like contact surface that contacts the connecting portion 21, The inward crest point of the wire spring 121 is used for point contact with the connecting portion 21 . Of course, the wire spring 121 is an elastically deformable structure. After the connecting portion 21 is inserted into the insertion cavity formed by the wire spring 121 , a local wire contact will be formed between the connecting portion 21 and the wire spring 121 . The wave-shaped wire spring 121 has strong elasticity, and the wire spring 121 and the connecting portion 21 can realize stable point contact and/or line contact.

Please refer to Fig. 3 and Fig. 6, in this embodiment, the elastic connector 12 also includes a first fixing ring 122 and a second fixing ring 123, one end of the wire spring 121 is fixedly connected with the first fixing ring 122, and the other end of the wire spring 121 One end is fixedly connected to the second fixed ring 123, and the wire spring 121 is parallel to the inner rings of the first fixed ring 122 and the second fixed ring 123, or distributed on the inner rings of the first fixed ring 122 and the second fixed ring 123, So that the connecting portion 21 can be inserted into the insertion cavity to be in contact with the wire spring 121 .

When the wire spring 121 is a curved structure or the wire spring 121 is an inclined structure, and the middle part or part of the insertion cavity is concave and narrowed, the two ends of the wire spring 121 can also be installed on the first fixed ring 122 and the second fixed ring 123. On the middle part or the outer ring, the concave narrowed part of the insertion cavity can realize the contact connection with the connecting part 21 .

Please refer to FIG. 5 , FIG. 6 and FIG. 7 , in this embodiment, the first fixing ring 122 is close to the insertion interface of the connection cavity 11 of the first terminal 1 , and the second fixing ring 123 is away from the insertion interface of the connection cavity 11 of the first terminal 1 . interface. When the first terminal 1 and the second terminal 2 are plugged in, the connecting part 21 is inserted into the plugging cavity surrounded by the wire spring 121 through the plugging port of the connecting cavity 11 and the first fixing ring 122 successively. The first fixed ring 122 can be a fixed structure or an elastic structure; when the first fixed ring 122 is a fixed structure, the inner diameter of the first fixed ring 122 is slightly larger than the outer diameter of the connecting portion 21, so that the connecting portion 21 can pass through The first fixing ring 122 of the fixed structure, the first fixing ring 122 mainly plays the role of fixing the wire spring 121, and facilitates the insertion of the connecting part 21 into the insertion cavity surrounded by the wire spring 121; when the first fixing ring 122 is an elastic structure , the inner diameter of the first fixing ring 122 is slightly smaller than the outer diameter of the connecting part 21. After the connecting part 21 is inserted into the insertion cavity formed by the first fixing ring 122 and the wire spring 121, the first fixing ring 122 also forms a connection with the connecting part 21. The fixed limit can improve the stability of the connection between the connecting portion 21 and the wire spring 121 .

The inner diameter of the second fixing ring 123 can be consistent with that of the first fixing ring 122, which is convenient for processing and assembly. The size of the second fixing ring 123 can also be adapted and adjusted according to the components connected to the tail of the first terminal 1 , so that the second fixing ring 123 can be inserted into the components connected to the tail of the first terminal 1 .

In some embodiments, both ends of the wire spring 121 can also be directly installed in the connection cavity 11 of the first terminal 1 , for example, an integrally formed ring mounting part is provided in the connection cavity 11 of the first terminal 1 . Alternatively, one end of the wire spring 121 is directly installed in the connection cavity 11 of the first terminal 1 , and the other end of the wire spring 121 is indirectly installed in the connection cavity 11 through a fixing ring; both of which can realize the installation of the wire spring 121 .

In this embodiment, there is a floating gap between the elastic connecting piece 12 and the inner wall of the connecting cavity 11 in the radial direction (the direction in which the connecting portion 21 is inserted vertically). Floating, and then in the process of inserting the connecting part 21 of the second terminal 2, the elastic connecting part 12 can realize alignment connection with the connecting part 21 through radial floating, and the elastic connecting part 12 has the adaptability of mating, which can reduce the connection The wear of the part 21 and the wire spring 121 is improved, thereby improving the life of plugging and unplugging, and is suitable for the field of medical equipment that is frequently plugged and pulled out.

Specifically, the connection cavity 11 is a cylindrical cavity, and the axial ends of the elastic connector 12 respectively abut against the axial ends of the connection cavity 11, that is, the first fixing ring 122 and the second fixing ring 123 respectively abut against the connection At both axial ends of the cavity 11 , the connecting cavity 11 limits the axial position of the elastic connecting member 12 , and the elastic connecting member 12 cannot move axially in the connecting cavity 11 . The inner diameter of the connecting chamber 11 is slightly larger than the outer diameter of the elastic connector 12, that is, the inner diameter of the connecting chamber 11 is slightly larger than the outer diameters of the first fixing ring 122 and the second fixing ring 123, so that the elastic connecting member 12 as a whole can fit within the inner diameter of the connecting chamber 11. to float.

In some embodiments, the end of the elastic connector 12 close to the socket is set to be radially floating, and the end away from the socket is set to be fixedly connected. For example, the first fixed ring 122 can radially float relative to the connecting cavity 11, and the second fixed The ring 123 is limited and fixed, and the second fixing ring 123 cannot radially float relative to the connecting cavity 11 . Since the wire spring 121 is an elastically variable structure, the end of the elastic connector 12 close to the insertion port is set to float radially, which can also improve the adaptability of the elastic connector 12 for mating.

In this embodiment, the electrical connector may include one or more first terminals 1 , and correspondingly include one or more second terminals 2 , and the first terminals 1 and the second terminals 2 correspond one to one. The elastic connectors 12 in the plurality of first terminals 1 can be separate components that are independent of each other, or can be interconnected as a whole, such as the elastic connectors 12 in the plurality of first terminals 1 are formed by winding a wire spring 121 become.

Please refer to FIG. 8 and FIG. 9 , in one embodiment, the end of the first terminal 1 away from the socket is provided with a socket portion 13 , and the end of the socket of the first terminal 1 is provided with a mounting hole, and the mounting hole communicates with the connection cavity 11 , the socket part 13 is installed in the mounting hole, and one end of the socket part 13 is inserted into the socket cavity of the elastic connector 12, the socket part 13 is made of metal conductive material, and the socket part 13 forms an electrical connection with the wire spring 121 . One end of the insertion portion 13 exposed outside the first terminal 1 is used for connecting with medical equipment such as a host of an endoscope.

In some embodiments, the insertion part 13 and the first terminal are integrated, and one end of the wire spring 121 extends to the outer surface of the insertion part 13, which can also realize medical treatment such as the first terminal 1 and the host of the endoscope. The device is electrically connected.

Please refer to Figures 10 and 11. In this embodiment, the insertion part 13 is an elastic structure, and the insertion part 13 is a hollow tubular structure. The middle part of the insertion part 13 exposed to the first terminal 1 is enlarged so that The outer diameter of the middle part of the part 13 is larger than that of both ends, and an opening 131 is provided in the middle part, and the insertion part 13 forms a fish-eye structure. Wherein the outer diameter of the middle part of the plug-in part 13 is greater than the inner diameter of the plug-in hole on the circuit board in the camera host 50 of the endoscope, after the plug-in part 13 is inserted in the plug-in hole, the middle part of the plug-in part 13 will be squeezed by the plug-in hole When compressed, the opening 131 of the insertion portion 13 will be compressed to close or shrink. The middle part of the socket part 13 is enlarged, so that after the socket part 13 is connected to the socket hole, the middle part of the socket part 13 will form a radially outward expansion force, which can improve the connection between the socket part 13 and the socket hole. stability, so that high-speed signal transmission can be realized between the first terminal 1 and the camera host 50 of the endoscope.

Preferably, the socket part 13 is provided with a plurality of openings 131 distributed along the axial direction of the socket part 13, the middle part of the socket part 13 forms a gradual change structure, and the two ends of the socket part 13 gradually become larger toward the middle direction, the gradual change type The structure can play a guiding insertion and gradual deformation, which is beneficial to the insertion of the insertion part 13 and the insertion hole.

In some embodiments, the opening 131 can also extend to the end of the insertion part 13 , and the opening 131 divides the insertion part 13 into several sheet structures, and can also realize the elastic connection between the insertion part 13 and the insertion hole.

In this embodiment, the first terminal 1 of the electrical connector is provided with a wire spring 121, and the connecting portion 21 of the second terminal 2 is connected to the wire spring 121 to realize electrical connection and signal connection. Since the wire spring 121 is an elastic linear structure, The connection between the wire spring 121 and the second terminal 2 forms elastic point contact and/or line contact, which can ensure the stability of the connection between the first terminal 1 and the second terminal 2 . Moreover, the contact mode between the first terminal 1 and the second terminal 2 is point contact and/or line contact, which reduces the contact area and can avoid foreign matter remaining on the contact surface during repeated plugging and unplugging, thereby ensuring that it is used for internal The electrical connector of the scope camera system transmits signals stably for a long time at high speed. As shown in Figure 12, the characteristic impedance of the connection between the first terminal 1 and the second terminal 2 is 100 ± 5Ω, which meets the requirement of 100 ohms ± 10%, and meets the high-speed transmission performance index; and as shown in Figure 13, the first terminal 1 and the second terminal 2 The return loss between the second terminals 2 can meet the requirement of <-15dB under the high-speed requirement of 8G Hz, and meet the requirement of low return loss under the high-speed transmission of 5G Hz.

In this embodiment, since the wire spring is used to realize the elastic connection, the first terminal 1 and the second terminal 2 have strong adaptability and low installation requirements, and thus can adapt to frequent disinfection and sterilization in the medical environment.

In one embodiment, an electrical connector for an endoscope camera system is provided. The difference between this connector and the above embodiments is that it only includes the second terminal 1 . The second terminal 1 can be fixedly installed on the medical equipment, such as inlaid on the side wall of the medical equipment. The first terminal 1 uses the above-mentioned wire spring 121 with elastic deformation ability to realize electrical connection, and then can adapt to different sizes. The second terminal 2 of the second terminal 2, so that the electrical connector for the endoscope camera system of this embodiment can be mated with a variety of second terminals 2, and at the same time can ensure a stable connection between the first terminal 1 and the second terminal 2 .

In one embodiment, an electrical connector for an endoscope camera system is provided. The difference between this connector and the above embodiments is that the structure of the elastic connecting member 12 is different.

Please refer to FIG. 14 , FIG. 15 and FIG. 16 , in this embodiment, the signal connector in the elastic connector 12 includes a wire spring 121 , the wire spring 121 includes a first group and a second group, and the fixing ring includes a first fixing ring 122 , the second fixed ring 123 and the third fixed ring 124, the first fixed ring 122, the second fixed ring 123 and the third fixed ring 124 are distributed along the axial direction in turn, and the two ends of the wire spring 121 of the first group are respectively connected with the second fixed ring. A fixed ring 122 is connected with the second fixed ring 123, and the wire spring 121 of the first group forms a first tubular structure with the first fixed ring 122 and the second fixed ring 123; the two ends of the wire spring 121 of the second group are connected with The second fixed ring 123 is connected with the third fixed ring 124, the wire spring 121 of the second group is surrounded by the second fixed ring 123 and the third fixed ring 124 to form a second tubular structure, and the first tubular structure and the second tubular structure are connected in series of two tubes. Wherein, the first tubular structure is used to mate with the connecting portion 21 of the second terminal 2 , and the second tubular structure is fixedly connected to one end of the insertion portion 13 .

In other embodiments, the signal connector may also include a crown spring, the crown spring includes a first group and a second group, the first group of the crown spring is connected between the first fixing ring 122 and the second fixing ring 123, the crown spring The second set is connected at the second fixing ring 123 and the third fixing ring 124 .

In this embodiment, both the middle part of the first tubular structure and the middle part of the second tubular structure are narrowed so that the first tubular structure can be independently and stably connected to the connecting portion 21 of the second terminal 2, and the second tubular structure can be independently connected to the second terminal 2. Two tubular structures. Furthermore, the connection portion 21 of the second terminal 2 will not affect the connection between the insertion portion 13 and the wire spring 121 during frequent plugging and unplugging, and the service life of the connector can be improved.

In other embodiments, the fixing ring can also be a long cylindrical structure, the signal connector is installed in the long cylindrical structure, and the two ends of the signal connector are respectively connected to the two ends of the long cylindrical structure in one-to-one correspondence. The signal connector is a narrowed structure in the middle, and the structure after the expansion connection of the signal connector forms a straight tubular structure, so the long cylindrical structure will not interfere with the elastic connection of the signal connector, and the long cylindrical structure can also realize the signal connector. fixed.

In one embodiment, a camera host for an endoscope camera system is provided. The first terminal in the above embodiment is installed on the camera host, and the camera host is pluggable through the first terminal and the signal transmission cable. Connection to realize structural connection and electrical connection, so that the signal transmission cable can transmit the image signal generated by the camera to the camera host.

Please refer to FIG. 17. In this embodiment, the camera host includes a box body 3 and a processor (not shown in the figure), the processor is installed in the box body 3, and an electrical connector socket end 31 is provided on the outside of the box body 3. The electrical connector socket end 31 includes a signal jack, the signal jack is used to connect the terminal of the signal transmission cable, the electrical connector socket end 31 is electrically connected with the processor, and the electrical connector socket end 31 is used to obtain the signal transmission cable electrical signals, and transmitting the electrical signals to a processor.

In this embodiment, the structure of the socket end 31 of the electrical connector is the same or similar to that of the first terminal 1 in the above embodiment. The signal jack of the socket end 31 of the electrical connector is the connection chamber 11 in the above-mentioned embodiment, and a signal connector is also provided in the signal jack, and the signal connector includes a wire spring 121, and the wire spring 121 forms an elastic tube for Connect to the terminal of the signal transmission cable.

In this embodiment, the structure of the terminal of the signal transmission cable adapted to the camera host is the same or similar to that of the second terminal 2 in the above embodiment, so that the structure of the terminal of the transmission cable can be compatible with the electrical connector socket end. 31 signal jacks are adapted for plugging.

In this embodiment, the signal connector in the socket end 31 of the electrical connector is also provided with a narrowed elastic structure in the middle, which can improve the stability of the terminal connection with the signal transmission cable; and the signal connector in the signal jack is also arranged Become a radial floating structure, so that the signal connector can be radially floating mated with the terminal of the signal transmission cable, so as to improve the adaptability of the socket end 31 of the electrical connector, reduce the wear and tear of frequent plugging, and improve the service life .

In one embodiment, a signal transmission cable for an endoscope camera system is provided. The signal transmission cable is equipped with the first terminal in the above embodiment, and the signal transmission cable can communicate with the camera host through the first terminal. The plug-in connection realizes structural connection and electrical connection, so that the signal transmission cable can transmit the image signal generated by the camera to the camera host.

Please refer to FIG. 18 , in this embodiment, the signal transmission cable includes a first connection end 41, a second connection end 42 and a cable part 43, and one or both of wires and optical fibers are arranged in the cable part 43, The length of the cable part 43 can be set as required, and the cable part 43 is a flexible structure, which can be curled, stored and hung. The first connection end 41 and the second connection end 42 are respectively located at two ends of the cable portion 43 and form an electrical connection. Wherein, the first connection terminal 41 is fixedly connected with the camera, and the second connection terminal 42 is used for detachable plug connection with the camera host.

The structure of the second connection end 42 is the same or similar to that of the first terminal 1 in the above-mentioned embodiment. The second connection end 42 is provided with a signal jack, which is the connection cavity 11 in the above-mentioned embodiment. A signal connector is also provided, and the signal connector includes a wire spring 121, and the wire spring 121 encloses an elastic tube, and the elastic tube is used for connecting with a terminal of a signal transmission cable.

In this embodiment, the terminal structure of the camera host adapted to the second connection terminal 42 of the signal transmission cable is the same as or similar to that of the second terminal 2 in the above embodiment, so that the structure of the terminal of the camera host can be compared with the second terminal 2. The signal jack of the connection terminal 42 is suitable for insertion.

In this embodiment, the signal connector in the second connection terminal 42 is also provided with a narrowed elastic structure in the middle, which can improve the stability of the terminal connection with the signal transmission cable; and the signal connector in the signal jack is also set as The radial floating structure enables the signal connector to be radially floatingly mated with the terminals of the camera main body, so as to improve the adaptability of the second connecting terminal 42 plugging, reduce the wear and tear of frequent plugging, and increase the service life.

Please refer to FIG. 19 , in one embodiment, an endoscope camera system 1000 is provided. The endoscope camera system 1000 includes a light source 10, a light guide 20, an endoscope 30, a camera 40, a signal transmission cable 71, a camera Host 50, display 60, video connection line 72 and electrical connector 80 for the endoscopic camera system. Wherein the camera 40 is the endoscope camera in the above-mentioned embodiment, and the endoscope 30 adopts the cooperation of a homogenizer and an ultra-wide-angle optical fiber in the illumination light path to improve the luminous flux and make the illuminance distribution in the observation field uniform, thereby improving the endoscopic The contrast and signal-to-noise ratio of the mirror image can be improved, thereby improving the imaging quality;

The camera host 50 is connected to one end of the signal transmission cable 71 through the electrical connector 80 for the endoscope camera system, and the other end of the signal transmission cable 71 is connected to the camera 40, and the white light signal and the fluorescent signal generated by the camera 40 pass through the signal The transmission cable 71 transmits to the camera host 50 for processing. In some embodiments, the signal transmission cable 71 can be an optical communication signal transmission cable, such as an optical fiber; the camera 40 converts the image signal (electrical signal) into an optical signal, which is transmitted to the camera host 50 by the signal transmission cable 71, The camera host 50 then converts the optical signal into an electrical signal (image signal). The camera host 50 is connected to the display 60 through a video connection line 72 for sending image signals to the display 60 for display. Those skilled in the art should understand that FIG. 19 is only an example of the endoscope camera system 1000, and does not constitute a limitation to the endoscope camera system 1000. The endoscope camera system 1000 may include more or more than those shown in FIG. Fewer components, or a combination of some components, or different components, for example, the endoscope camera system 1000 may also include a dilator, a smoke control device, an input and output device, a network access device, and the like.

The light source 10 is used for providing an illumination source to the site to be observed 100 and exciting fluorescence imaging. The light source 10 includes a white light source (visible light source) and an excitation light source (laser illumination light source, such as near-infrared light) corresponding to the fluorescent reagent.

In this embodiment, the main camera 50 is provided with a processor, the processor is connected to the camera 40 through the signal transmission cable 71, the processor obtains the electrical signal output by the camera, and processes the electrical signal to at least output the image. The electrical signal acquired may be a separate white light signal and a fluorescent signal, or an electrical signal in which the white light signal and the fluorescent signal are combined.

In this embodiment, the electrical connector 80 for the endoscope camera system includes a first terminal 1 and a second terminal 2, the first terminal 1 is installed on the camera host 50, and the second terminal 2 is installed on the signal transmission cable 71 Above, the first terminal 1 and the second terminal 2 are detachably electrically connected, so that the signal transmission cable 71 can be separated from the camera host 50 by splitting the first terminal 1 and the second terminal 2, and then can Satisfy the needs of split sterilization and disinfection.

In this embodiment, since the first terminal 1 is provided with a wire spring 121, and the insertion cavity formed by the wire spring 121 is formed, the connecting portion 21 of the second terminal 2 forms a line connection and/or point contact with the wire spring 121, which can reduce the number of connecting parts. The friction force between 21 and the wire spring 121 facilitates the insertion and removal of the connection part 21, and the linear elastic deformation of the wire spring 121 is conducive to the wire spring 121 always surrounding the connection part 21, which can ensure the stability of the electrical connection. Furthermore, the electrical connector 80 used in the endoscope imaging system is used to connect the signal transmission cable 71 and the camera host 50, which can meet the high-speed transmission of signals, and can also meet the needs of frequent plugging and unplugging.

The above uses specific examples to illustrate the present invention, which is only used to help understand the present invention, and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, some simple deduction, deformation or replacement can also be made according to the idea of the present invention.

Claims

An electrical connector for an endoscope camera system, characterized in that it comprises:

The first terminal (1), the first terminal (1) is provided with a signal connector and a fixing ring, and the two ends of the signal connector are respectively connected to the fixing ring, and the signal connector and the fixing ring are respectively connected. the retaining ring is connected into a tubular structure having a median diameter smaller than the opening at at least one end; and

The second terminal (2), the diameter of the connecting portion (21) of the second terminal is smaller than the opening of the tubular structure and larger than the middle diameter of the tubular structure.
The electrical connector for an endoscope camera system according to claim 1, wherein the signal connecting piece is a wire or sheet metal piece.
The electrical connector for an endoscope camera system according to claim 1, characterized in that, the signal connector comprises a wire spring (121) and/or a crown spring.
The electrical connector for an endoscope camera system according to claim 1, characterized in that, the signal connector is a linear structure, and the length direction of the signal connector is relative to that of the connecting part (21). The insertion direction is inclined.
The electrical connector for an endoscope camera system according to claim 1, wherein the signal connector is a curved structure, and the middle part of the signal connector is concavely bent.
The electrical connector for an endoscope camera system according to claim 1, characterized in that, a connection cavity (11) is provided in the first terminal (1), and the tubular structure can be floatingly arranged on the inside the connecting chamber (11).
The electrical connector for an endoscope camera system according to claim 6, characterized in that, in the direction perpendicular to the insertion of the connecting part (21), the tubular structure and the connecting cavity (11) There is a floating gap between the inner walls.
The electrical connector for an endoscope camera system according to claim 1, wherein the fixing ring comprises a first fixing ring (122) and a second fixing ring (123), and the signal connector The two ends are respectively connected to the first fixing ring (122) and the second fixing ring (123).
The electrical connector for an endoscope camera system according to claim 8, characterized in that, the end of the first terminal (1) away from the second terminal (2) is provided with a plug-in part (13) , one end of the insertion part (13) is inserted into the tubular structure, and the other end of the insertion part (13) protrudes from the second terminal (2) for communicating with the endoscopic camera The socket connection on the camera host or the signal transmission cable in the system.
The electrical connector for an endoscope camera system according to claim 1, characterized in that, the fixing ring comprises a first fixing ring (122), a second fixing ring (123) and The third fixing ring (124), the signal connector includes a first group and a second group, and the two ends of the first group are connected to the first fixing ring (122) and the second fixing ring (123) respectively ) to form a first tubular structure, the two ends of the second group are respectively connected to the second fixed ring (123) and the third fixed ring (124) to form a second tubular structure, the first The tubular structure is used to mate with the connecting portion of the second terminal.
The electrical connector for an endoscope camera system according to claim 10, characterized in that, the end of the first terminal (1) away from the second terminal (2) is provided with a plug-in part (13) , one end of the insertion part (13) is inserted into the second tubular structure, and the other end of the insertion part (13) protrudes from the second terminal (2) for connecting with the inner In the camera system, it is connected to the plug hole on the camera host or on the signal transmission cable.
The electrical connector for an endoscope camera system according to any one of claims 1-11, characterized in that it comprises a plurality of said first terminals (1) and a plurality of said second terminals (2 ).
An electrical connector for an endoscope camera system, characterized in that it comprises:

The first terminal (1), the first terminal (1) has a connection chamber (11), one end of the connection chamber (11) is provided with a plug-in port, and the connection chamber (11) is provided with an elastic connector ( 12), the elastic connector (12) includes a signal connector; and

The second terminal (2), the second terminal (2) has a connection part (21), and the connection part (21) is used for inserting into the connection cavity (11) to make point contact with the signal connector and/or Or wire contacts form an electrical connection to transmit electrical signals in the endoscope camera system.
The electrical connector for an endoscope camera system according to claim 13, wherein the signal connecting piece is a wire or sheet metal piece.
The electrical connector for an endoscope camera system according to claim 13, characterized in that, the signal connector comprises a wire spring (121) and/or a crown spring.
The electrical connector for an endoscope camera system according to claim 13, characterized in that, the signal connecting member encloses an elastic tube, and the elastic tube is used for inserting into the connecting part (21).
The electrical connector for an endoscope camera system according to claim 16, characterized in that, part or all of the inner diameter of the elastic tube is smaller than the outer diameter of the connecting part (21), and the elastic tube is used for It is connected with the connecting part (21) through elastic deformation.
The electrical connector for an endoscope camera system according to claim 17, wherein the central portion of the elastic tube is narrowed.
The electrical connector for an endoscopic imaging system according to claim 15, characterized in that, the wire spring (121) is a straight line structure, and the length direction of the wire spring (121) is relative to the connecting part (21) The direction of insertion is parallel and/or oblique.
The electrical connector for an endoscope camera system according to claim 13, characterized in that, the elastic connector (12) further comprises a first fixing ring (122) and a second fixing ring (123), so One end of the signal connector is connected to the first fixing ring (122), and the other end of the signal connector is connected to the second fixing ring (123).
The electrical connector for an endoscope camera system according to any one of claims 13-20, characterized in that, the elastic connecting member (12) can be floatingly arranged in the connecting cavity (11), The elastic connecting piece (12) is used for mating the connecting part (21) in a floatable manner.
The electrical connector for an endoscope camera system according to any one of claims 13-20, characterized in that, in the direction perpendicular to the insertion of the connecting part (21), the elastic connecting member (12) There is a floating gap with the inner wall of the connection cavity (11).
The electrical connector for an endoscope camera system according to claim 13, characterized in that, the end of the first terminal (1) away from the insertion port is provided with a plug-in portion (13), and the plug-in portion The connecting part (13) is used for electrical connection with the socket hole on the camera host or the signal transmission cable in the endoscopic camera system.
The electrical connector for an endoscope camera system according to claim 23, characterized in that, the insertion part (13) is an elastic structure, and part or all of the outer diameter of the insertion part (13) is larger than The inner diameter of the insertion hole on the camera host in the endoscopic camera system.
The electrical connector for an endoscope camera system according to claim 24, characterized in that, the outer diameter of the middle part of the insertion part (13) is larger than the outer diameters of both ends of the insertion part (13) , and an opening (131) is provided in the middle of the insertion part (13).
The electrical connector for an endoscope camera system according to claim 13, characterized in that it comprises a plurality of first terminals (1) and a plurality of second terminals (2).
An electrical connector for an endoscope camera system, characterized in that it comprises:

The first terminal (1), the first terminal (1) has a connection cavity (11), one end of the connection cavity (11) is provided with an insertion port, and an elastic wall is provided in the connection cavity (11); and

The second terminal (2), the second terminal (2) has a connecting part (21), and the connecting part (21) is used for inserting into the insertion cavity, and making point contact with the elastic wall of the insertion cavity and / or wire contacts form an electrical connection to transmit electrical signals in the endoscopic camera system.
The electrical connector for an endoscope camera system according to claim 27, characterized in that, a wire spring (121) and/or a crown spring are arranged in the connection cavity (11), and the wire spring (121) And/or a crown spring constitutes the elastic wall, and the wire spring (121) is in point contact and/or line contact with the connecting portion (21).
The electrical connector for an endoscope camera system according to claim 28, characterized in that, the wire spring (121) is a straight line structure, and the length direction of the wire spring (121) is relative to the connecting part (21) The direction of insertion is parallel and/or oblique.
The electrical connector for an endoscope camera system according to claim 27, characterized in that, the elastic wall encloses a tubular structure, and part or all of the inner diameter of the tubular structure is smaller than the connecting portion (21) The outer diameter of the elastic wall is used to connect with the connecting part (21) through elastic deformation.
The electrical connector for an endoscope camera system according to claim 27, characterized in that, the elastic wall is a floating structure, and the elastic wall is used for mating the connecting part (21) in a floatable manner.
The electrical connector for an endoscope camera system according to claim 27, characterized in that, the end of the first terminal (1) away from the second terminal (2) is provided with a plug-in part (13) , the plug-in part (13) is used to connect with the plug-in hole on the camera host or the signal transmission cable in the endoscopic camera system.
The electrical connector for an endoscope camera system according to claim 32, characterized in that, the insertion part (13) is an elastic structure, and part or all of the outer diameter of the insertion part (13) is larger than The inner diameter of the socket hole.
An electrical connector for an endoscope camera system, characterized in that it includes a first terminal (1), the first terminal (1) has a connection cavity (11), and one end of the connection cavity (11) A plug-in port is provided, and an elastic connector (12) is provided in the connection cavity (11), and the elastic connector (12) includes a signal connector, and the signal connector is used for point contact with the inserted terminal and/or Or wire contacts form an electrical connection to transmit electrical signals in the endoscope camera system.
The electrical connector for an endoscope camera system according to claim 34, characterized in that, the signal connector comprises a wire spring (121) and/or a crown spring.
The electrical connector for an endoscope camera system according to claim 34, characterized in that, the signal connecting piece encloses an elastic tube, and the elastic tube is used for inserting into the connecting part (21).
The electrical connector for an endoscope camera system according to claim 36, characterized in that, part or all of the inner diameter of the elastic tube is smaller than the outer diameter of the connecting part (21), and the elastic tube is used for It is connected with the connecting part (21) through elastic deformation.
The electrical connector for an endoscope camera system according to claim 35, characterized in that, the wire spring (121) is a straight line structure, and the length direction of the wire spring (121) is relative to the connecting part (21) The direction of insertion is parallel and/or oblique.
The electrical connector for an endoscope camera system according to claim 34, characterized in that, the end of the first terminal (1) away from the insertion port is provided with a plug-in portion (13), and the plug-in portion The connecting part (13) is used to connect with the plug hole on the camera host or the signal transmission cable in the endoscopic camera system.
The electrical connector for an endoscope camera system according to claim 34, characterized in that, the insertion part (13) is an elastic structure, and part or all of the outer diameter of the insertion part (13) is larger than The inner diameter of the socket hole.
An endoscope camera host, characterized in that it includes a box body and a processor, the processor is arranged in the box body, the processor is used to process electrical signals and output processed images, the box body The outer side of the body is provided with an electrical connector socket end, and the electrical connector socket end includes a signal jack, and the signal jack is used to insert the terminal of the signal transmission cable in the endoscope camera system, and the signal jack The electrical connection is formed by point contact and/or line contact with the terminal of the signal transmission cable, so as to obtain the electrical signal and transmit it to the processor.
The endoscope camera host according to claim 41, wherein a signal connector is provided in the signal jack, and the signal connector includes a wire spring (121) and/or a crown spring, and the wire spring (121) and/or the crown spring encloses an elastic tube, and the elastic tube is used for inserting the terminal of the signal transmission cable.
The endoscope camera host according to claim 42, wherein the inner diameter of part or all of the elastic tube is smaller than the outer diameter of the terminal of the signal transmission cable, and the elastic tube is used to connect with the signal through elastic deformation. Connect the terminals of the above-mentioned signal transmission cables.
The endoscope camera host according to claim 42, characterized in that, the central portion of the elastic tube is narrowed.
The endoscope camera host according to claim 42, characterized in that, the wire spring (121) is a straight line structure, and the length direction of the wire spring (121) is relative to the insertion of the terminal of the signal transmission cable Orientation parallel and/or oblique.
The endoscope camera host according to any one of claims 42-45, characterized in that, the signal connector is set in the signal jack in a floating manner.
The endoscope camera host according to any one of claims 42-45, characterized in that, in the direction perpendicular to the insertion of the signal transmission cable terminal, the signal connector is connected to the inner wall of the signal jack There is a floating gap between them.
A signal transmission cable for an endoscope camera system, characterized in that it includes a first connection end, a second connection end and a cable portion between the first connection end and the second connection end, the The first connecting end is used for connecting with the endoscope camera, and the second connecting end is used for connecting with the camera host; the second connecting end is provided with a signal jack, and the signal jack is used for plugging into the The host terminal of the camera host, and the point contact and/or line contact with the host terminal to form an electrical connection, so as to transmit the electrical signal to the camera host.
The signal transmission cable according to claim 48, characterized in that, a signal connector is provided in the signal jack, and the signal connector includes a wire spring (121) and/or a crown spring, and the wire spring ( 121) and/or the crown spring to form an elastic tube, and the elastic tube is used for inserting into the host terminal.
The signal transmission cable according to claim 49, wherein a part or all of the inner diameter of the elastic tube is smaller than the outer diameter of the host terminal, and the elastic tube is used to connect with the host terminal through elastic deformation.
The signal transmission cable according to claim 49, wherein the middle part of the elastic tube is narrowed.
The signal transmission cable according to claim 49, characterized in that, the wire spring (121) is a straight line structure, and the length direction of the wire spring (121) is parallel to the insertion direction of the host terminal and/or tilt.
The signal transmission cable according to any one of claims 49-52, characterized in that, the signal connecting member can be floatingly arranged in the signal jack.
An endoscopic camera system, characterized in that it includes a light source (10), a light guide (20), a camera (40), a signal transmission cable (71), a camera host (50) and as claimed in claims 1 to The electrical connector for an endoscope camera system according to any one of 40, the light source (10) is connected to the endoscope (30) through the light guide (20), and the endoscope camera head (40 ) is connected to the endoscope (30), the other end of the camera (40) is connected to one end of the signal transmission cable (71), and the other end of the signal transmission cable (71) passes through The electrical connector is connected to the camera host (50); the endoscope (30) includes an illumination optical path and an imaging optical path, the illumination optical path is connected to the light guide (20), and the imaging optical path is connected to the imaging optical path The aforementioned camera (40) is docked.