An optical endoscope imaging and lighting system

Abstract

The present invention relates to an optical endoscope imaging and lighting system, and the technical solution thereof includes: a camera head and an optical hard tube mirror, wherein the optical hard tube mirror includes: an outer tube; an eyepiece cover; a hard tube mirror body disposed inside the outer tube; and a light-guiding optical fiber disposed between the hard tube mirror body and the outer tube and always parallel to the imaging optical axis of the hard tube mirror body, wherein the light-entry surface of the light-guiding optical fiber is parallel to the light-exiting surface; the camera head includes: an optical lens group, a photoelectric conversion module, a power supply module, and a light-emitting LED module disposed at one end of the camera head close to the optical hard tube mirror; a light-guiding light cone is disposed at one end of the camera head, which is in contact with the light-entry surface of the light-guiding optical fiber and is used to guide the light of the light-emitting LED module into the light-guiding optical fiber. The system has the advantages of simple structure, easy operation, and flexible rotation.

Description

Technical Field

[0001] The present invention relates to the technical field of optical endoscope imaging, and in particular to an optical endoscope imaging and lighting system. Background Art

[0002] The optical endoscope imaging system is generally composed of a medical cold light source, an optical rigid tube mirror and a camera. The traditional optical rigid tube mirror plays the role of light transmission and optical imaging, and the camera plays the role of converting the optical image into an electronic image, transmitting it to the image host for processing, and outputting it to the monitor. In actual use, in order to realize the visualization of the surgical process, the optical rigid tube mirror needs to be connected to the medical cold light source through a light-guiding fiber bundle to guide the illumination light into the optical fiber inside the optical rigid tube mirror and transmit it to the location where surgery or treatment is required to achieve illumination. At the same time, the human tissue transmits the image to the camera through the optical imaging system of the optical rigid tube mirror for photoelectric conversion, converting the optical image into an electronic image, and finally displayed on the terminal monitor after being processed by the image host.

[0003] In this way, the optical rigid tube endoscope must be connected not only to the camera, but also to the light-guiding fiber bundle, which increases the weight of the camera held by the doctor, increasing the burden of the doctor's operation, and long-term use will accelerate the fatigue of medical staff. In addition, the light-guiding fiber bundle connecting the optical rigid tube endoscope and the medical cold light source and the camera cable connecting the camera and the image host are easily entangled, which not only affects the operation of medical staff, but also reduces the service life.

[0004] In addition, in order to connect the optical fiber light guide, the traditional optical hard tube mirror needs to retain the interface for connecting the light guide, which makes the structure of the hard tube mirror complicated. At the same time, the optical fiber inside the hard tube mirror needs to be bent into a right angle, and the optical fiber is easily broken by bending, which greatly reduces the life of the light guide optical fiber inside the hard tube mirror. Therefore, it is necessary to propose an optical endoscope imaging and lighting system to solve the above technical problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an optical endoscope imaging and lighting system, which simplifies the structure of the optical hard tube mirror, reduces the connection with external equipment, thereby avoiding the additional torque caused by the external light guide accessories, and has the advantages of easy operation and flexible rotation. At the same time, it avoids the breakage of the light guide fiber due to bending, greatly improving the service life of the optical hard tube mirror.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an optical endoscope imaging and lighting system, comprising: a camera, an optical rigid tube mirror, the optical rigid tube mirror comprising: an outer tube; an eyepiece cover; a rigid tube mirror body arranged inside the outer tube; and a light-guiding optical fiber arranged between the rigid tube mirror body and the outer tube and always parallel to the imaging optical axis of the rigid tube mirror body, the light entrance surface of the light-guiding optical fiber being parallel to the light exit surface; the camera comprises: an optical lens group, a photoelectric conversion module, a power supply module, and a light-emitting LED module arranged at one end of the camera near the optical rigid tube mirror; a light-guiding cone is provided at one end of the camera, which is in contact with the light entrance surface of the light-guiding optical fiber and is used to guide the light of the light-emitting LED module into the light-guiding optical fiber.

[0007] According to a further configuration of the present invention, at least an eyepiece, a rotating rod lens group, and an objective lens are assembled in the optical cavity of the rigid tube mirror body.

[0008] According to a further configuration of the present invention, the light-emitting LED module is connected to the power supply module via a power supply cable and is powered by the power supply module.

[0009] According to a further configuration of the present invention, the light-guiding optical fiber is provided in a ring shape between the rigid tube mirror body and the outer tube.

[0010] In summary, the present invention has the following beneficial effects:

[0011] 1. In the present invention, by arranging the light-guiding optical fiber parallel to the imaging optical axis of the optical rigid tube mirror and realizing light transmission by abutting the light-guiding light cone at one end of the camera, the structure of the optical rigid tube mirror is simplified, the space and weight occupied by the external light-guiding optical fiber are reduced, and the additional torque caused by the external light-guiding accessories can be avoided, so that the endoscope can be operated easily and rotated flexibly during surgery. In addition, since the light-guiding optical fiber inside the optical rigid tube mirror is always parallel to the imaging optical axis, the light-guiding optical fiber is effectively prevented from breaking due to bending, which greatly improves the life of the light-guiding optical fiber and the service life of the optical rigid tube mirror.

[0012] 2. In the present invention, the light-guiding optical fiber is arranged in a ring shape between the outer tube and the rigid tube endoscope body, so that the light source and the camera are combined into one, and the light can be distributed around the rigid tube endoscope body, which improves the convenience of the doctor's surgical operation and can achieve a more comprehensive lighting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an optical endoscope imaging and lighting system in an embodiment of the present invention;

[0014] Figure 2 is a cross-sectional view of an optical endoscope imaging and illumination system according to an embodiment of the present invention;

[0015] Figure 3 is a partial cross-sectional view of an optical endoscope imaging and illumination system according to an embodiment of the present invention;

[0016] Figure 4 2 is a cross-sectional view of an optical hard tube mirror in an embodiment of the present invention.

[0017] Explanation of the reference numerals: 1. camera; 2. optical rigid tube mirror; 11. light-emitting LED module; 12. power supply cable; 13. power supply module; 14. photoelectric conversion module; 15. optical lens group; 16. light; 17. light guide cone; 21. eyepiece cover; 22. light guide optical fiber; 221. light incident surface; 222. light exit surface; 23. optical cavity; 24. eyepiece; 25. image rod group; 26. objective lens; 27. outer tube; 28. rigid tube mirror body. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0020] Example: Figure 1 and Figure 2 As shown, an optical endoscope imaging and lighting system includes: a camera 1 and an optical hard tube mirror 2, wherein the optical hard tube mirror 2 includes: an outer tube 27, an eyepiece cover 21, a hard tube mirror body 28 disposed inside the outer tube 27; and a light-guiding optical fiber 22 disposed between the hard tube mirror body 28 and the outer tube 27 and always parallel to the imaging optical axis of the hard tube mirror body 28, wherein the light-incoming surface 221 of the light-guiding optical fiber 22 is parallel to the light-outgoing surface 222. The eyepiece cover 21 is made of insulating material, and is assembled on the outer wall of the outer tube 27, and one end of the eyepiece cover 21 is provided with a connection end for threaded assembly with the camera 1.

[0021] The camera 1 includes: an optical lens group 15, a photoelectric conversion module 14, a power supply module 13, and a light-emitting LED module 11 arranged at one end of the camera 1 close to the optical rigid tube lens 2; a light-guiding cone 17 is provided at one end of the camera 1, which is in contact with the light incident surface 221 of the light-guiding optical fiber 22 and is used to guide the light 16 of the light-emitting LED module 11 into the light-guiding optical fiber 22.

[0022] When the optical rigid tube mirror 2 is connected to the camera 1, the light incident surface 221 of the light-guiding optical fiber 22 abuts against the light-guiding cone 17 of the camera 1, thereby realizing light transmission. At this time, the light 16 emitted from the light-emitting LED module 11 passes through the light-guiding cone 17, enters the optical rigid tube mirror 2 from the light incident surface 221, and is finally output from the light output surface 222 to reach the surgical position.

[0023] like Figure 2 and Figure 4 As shown, in this embodiment, the optical cavity 23 of the hard tube mirror body 28 is equipped with at least an eyepiece 24, a rotating rod lens group 25, and an objective lens 26. The light-guiding optical fiber 22 is annularly arranged between the hard tube mirror body 28 and the outer tube 27, and is always parallel to the imaging optical axis of the hard tube mirror body 28. Therefore, during use, the light-guiding optical fiber 22 and the optical lens in the optical cavity 23 can not affect each other, and the light-guiding optical fiber 22 will not be bent, avoiding the breakage of the optical fiber due to bending, and greatly improving the life of the optical fiber, thereby improving the service life of the optical hard tube mirror 2. At the same time, the light source and the camera 1 are combined into one, so that the light 16 can be evenly irradiated on the outside of the hard tube mirror body 28, which is conducive to improving the convenience of operation and the lighting effect.

[0024] Compared with the prior art, the optical endoscope imaging and lighting system in this embodiment simplifies the design of the optical rigid tube endoscope 2, reduces the connection with external devices, can avoid the additional torque caused by external light guide accessories, and reduce the weight of the optical endoscope, making the endoscope easy to operate and flexible to rotate during surgery.

[0025] In this embodiment, if Figure 3 As shown, the light-emitting LED module 11 is connected to the power supply module 13 through the power supply cable 12, and is powered by the power supply module 13, thereby simplifying the number of connecting cables and avoiding the cable entanglement caused by too many cables, thereby affecting the operation of medical staff. In addition, since the handle of the camera 1 is a cylindrical structure rather than a T-shaped structure, it is convenient to set a sterile protective cover, which is beneficial to the sterile protection of the handle of the endoscope.

[0026] Specific working process and principle: In this embodiment, by arranging the light-guiding optical fiber 22 parallel to the imaging optical axis of the optical rigid tube mirror 2, and realizing light transmission by abutting the light-guiding light cone 17 at one end of the camera 1, the structure of the optical rigid tube mirror 2 is simplified, the space and weight occupied by the external light-guiding optical fiber 22 are reduced, and the additional torque brought by the external light-guiding accessories can be avoided, so that the endoscope is easy to operate and flexible to rotate during surgery. And because the light-guiding optical fiber 22 inside the optical rigid tube mirror 2 is always parallel to the imaging optical axis, the light-guiding optical fiber 22 is effectively avoided from breaking due to bending, which greatly improves the life of the light-guiding optical fiber 22 and the service life of the optical rigid tube mirror 2. The light-guiding optical fiber 22 is annularly arranged between the outer tube 27 and the rigid tube mirror body 28, so that the light source and the camera 1 are combined into one, and the light source can be distributed around the rigid tube mirror body 28, which improves the convenience of the doctor's surgical operation and can achieve a more comprehensive lighting effect.

[0027] The above is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An optical endoscope imaging and lighting system, characterized in that: include: Camera (1), optical hard tube mirror (2); The optical hard tube mirror (2) comprises: an outer tube (27); an eyepiece cover (21); a hard tube mirror body (28) arranged inside the outer tube (27); and a light-guiding optical fiber (22) arranged between the hard tube mirror body (28) and the outer tube (27) and always parallel to the imaging optical axis of the hard tube mirror body (28), wherein the light-entry surface (221) and the light-exit surface (222) of the light-guiding optical fiber (22) are parallel; The camera (1) comprises: an optical lens group (15), a photoelectric conversion module (14), a power supply module (13), and a light-emitting LED module (11) arranged at one end of the camera (1) close to the optical hard tube lens (2); One end of the camera (1) is provided with a light guide cone (17) which abuts against a light incident surface (221) of the light guide optical fiber (22) and is used to guide the light (16) of the light-emitting LED module (11) into the light guide optical fiber (22).

2. An optical endoscope imaging and lighting system according to claim 1, characterized in that: The optical cavity (23) of the hard tube mirror body (28) is equipped with at least an eyepiece (24), a rotating image rod lens group (25), and an objective lens (26).

3. An optical endoscope imaging and lighting system according to claim 1, characterized in that: The light-emitting LED module (11) is connected to the power supply module (13) via a power supply cable (12), and is powered by the power supply module (13).

4. The optical endoscope imaging and lighting system according to claim 1, characterized in that: The light-guiding optical fiber (22) is arranged in a ring shape between the hard tube mirror body (28) and the outer tube (27).

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