CN215078227U

CN215078227U - Light source device and endoscope imaging system

Info

Publication number: CN215078227U
Application number: CN202023288722.1U
Authority: CN
Inventors: 王飞
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-12-10
Anticipated expiration: 2030-12-30

Abstract

A light source device and an endoscope camera system, the light source device comprises a box body, a laser, an optical module, an optical fiber and a protection device, wherein the laser, the optical module, the optical fiber and the protection device are positioned in the box body; the laser is used for launching laser, and optical module is used for coupling laser and white light, and the fiber optic filament is accomodate in protection device, and protection device is connected with laser and optical module respectively to the both ends of fiber optic filament extension, and the fiber optic filament is used for transmitting the laser of laser emission to optical module in. Because be provided with protection device in light source device's the box, the optic fibre silk is accomodate in protection device, can avoid optic fibre silk and other parts twine in the box together, prevents the rupture or the pressure of optic fibre silk to break, and then has reduced the maintenance cost.

Description

Light source device and endoscope imaging system

Technical Field

The utility model relates to an internal detection device, concretely relates to light source device and endoscope camera system.

Background

In recent years, endoscopic minimally invasive surgery has been widely used in the medical field. An NIR (modern near infrared spectroscopy) light source is taken as an important component of an endoscope system, and can be used for both common endoscope illumination and ICG-NIR near infrared fluorescence imaging in the operation process. Under the action of fluorescence navigation, the lymph nodes can be rapidly and accurately developed, marked and positioned, so that accurate tumor resection is realized, tumor residues are avoided, the surgical trauma of a patient is greatly reduced, and the surgical time is shortened.

The optical fiber wires connected with the laser in the traditional light source case are unreasonably arranged, so that the optical fiber wires are easy to break or break by pressure, and the optical fiber wires and the laser are of an integrated structure, so that the damage of the optical fiber wires greatly increases the maintenance cost.

Disclosure of Invention

One embodiment provides a light source device, which comprises a box body, a laser, an optical module, an optical fiber and a protection device, wherein the laser, the optical module, the optical fiber and the protection device are positioned in the box body;

the laser is used for emitting laser;

the optical module is used for coupling laser and white light;

the optical fiber filament is accommodated in the protection device, the two ends of the optical fiber filament extend out of the protection device and are respectively connected with the laser and the optical module, and the optical fiber filament is used for transmitting laser emitted by the laser to the optical module.

In one embodiment, the protection device has a receiving cavity with an opening, the optical fiber filament is disposed in the receiving cavity, and two ends of the optical fiber filament penetrate out of the opening.

In one embodiment, the protective device is of a flat construction, the protective device having a flat face and a narrow side face, the opening being provided on the narrow side face of the protective device.

In one embodiment, the laser emitting direction of the laser and the laser entering direction of the optical module are located in a first plane, and the flat surface of the protection device is parallel to the first plane.

In one embodiment, the receiving cavity is an annular structure or a cylindrical structure.

In one embodiment, the protection device comprises a box body and a box cover, the box body is fixed in the box body, the box cover is covered on the box body, and the box body and the box cover enclose the containing cavity.

In one embodiment, the protective device has an annular groove, the fiber optic filament being disposed within the annular groove, the fiber optic filament being wound within the annular groove.

In one embodiment, the protection device comprises a first side plate, a second side plate and a connecting column, wherein the connecting column is connected between the first side plate and the second side plate, the first side plate is fixed in the box body, and the annular groove is formed between the first side plate and the second side plate.

In one embodiment, the light source device further includes a white light emitter disposed in the box, the white light emitter is connected to the optical module, and the white light emitter is configured to emit white light into the optical module.

The embodiment provides an endoscope camera system, including leaded light beam, endoscope, optics bayonet socket, camera connecting wire, camera, display, video connecting wire, host computer and foretell light source device, light source device's optical module passes through leaded light beam with the endoscope is connected, the one end of camera is passed through the optics bayonet socket with the endoscope is connected, the other end of camera passes through the camera connecting wire with the joining in marriage of host computer is inserted and is connected, the host computer passes through the video connecting wire with the display is connected.

According to the light source device and the endoscope camera system of the embodiment, the protection device is arranged in the box body of the light source device, the optical fiber wire is contained in the protection device, the optical fiber wire can be prevented from being wound with other components in the box body, the optical fiber wire is prevented from being broken or pressed to be broken, and then the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic diagram of a light source device according to an embodiment;

FIG. 2 is a schematic diagram illustrating a partial structure of a light source device according to an embodiment;

FIG. 3 is a schematic structural diagram of a protection box according to an embodiment;

FIG. 4 is a schematic diagram of an endoscopic camera system in one embodiment.

Detailed Description

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

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

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

In one embodiment, the light source device is a light source of an endoscope camera system, and the light source device is used for emitting laser and white light, and can be used for both common endoscope illumination and ICG-NIR fluorescence imaging during operation.

In order to make the laser light spots uniform, the optical fiber of the laser is generally longer, so that light rays are fully and diffusely reflected inside the laser, and the aim of uniform light spots is fulfilled. However, the fiber optic filaments are fragile and the longer fiber optic filaments are easily broken or crushed inside the housing. This embodiment is provided with protection device in the box, and longer fiber optic silk is accomodate to protection device to avoid the damage of fiber optic silk.

Referring to fig. 1, in the present embodiment, the light source device mainly includes a box 1, a laser 2, an optical module 3, a fiber 4, a protection device 5, and a white light 6.

The box 1 is square structure, has the holding chamber in the box 1, and laser instrument 2, optical module 3, optic fibre silk 4 and protection device 5 are installed respectively in box 1. One side surface of the box body 1 is a detachable surface, and the detachable side surface is used for assembling and maintaining the light source device.

The laser 2 is installed at the rear end (the front end of the light source device for emitting light) in the box body 1, and the laser 2 has an emitting end for emitting laser.

The front end in box 1 is installed to optical module 3, and optical module 3's rear end is equipped with laser incidence end and white light incidence end, and optical module 3's front end is equipped with the exit end. The optical module 3 comprises a plurality of lenses, the lenses form a Y-shaped light path, and the optical module 3 is used for coupling incident laser and white light into mixed light to be emitted.

Have a certain interval between laser instrument 2 and the optical module 3, the exit end of laser instrument 2 and the laser incidence end of optical module 3 pass through optic fibre silk 4 and connect, and optic fibre silk 4 is used for transmitting the even light back of laser that 2 launches of laser instrument to optical module 3 in. The laser 2 and the optical fiber filament 4 are of an integrated structure, and the laser 2 and the optical fiber filament 4 can also be of a detachable structure.

The white light device 6 is installed at the rear end of the optical module 3, the white light device 6 is connected with the white light incidence end of the optical module 3, the white light device 6 is an LED light source, and the white light device 6 is used for emitting white light into the optical module 3.

The light source device further comprises a power supply 7 and a main control board 8, the power supply 7 and the main control board 8 are installed in the box body 1, and the laser 2, the white light device 6 and the power supply 7 are respectively connected with the main control board 8. The power supply 7 supplies electric energy to the devices in the box body 1, and the main control board 8 is used for controlling the laser 2 to emit laser and the white light 6 to emit white light.

The protection device 5 is of a flat discoid structure, and the protection device 5 is mounted on the power supply 7. The protection device 5 can also be mounted directly on the side wall of the tank 1 or the protection device 5 can be mounted on other parts.

Referring to fig. 2, the protection device 5 includes a box body 51 and a box cover 52, the box body 51 is mounted on the power supply 7 by screws, the box body 51 has an annular groove 511, the side of the annular groove 511 is provided with an opening 512, the box cover 52 is mounted on the box body 51 by screws, the box cover 52 is a circular plate, and the box cover 52 and the box body 51 enclose an annular receiving cavity with the opening 512. The opening 512 has an arc length, and the opening 512 faces the laser 2 and the optical module 3.

The winding of optic fibre silk 4 is in protection device 5 accomodates the intracavity, and the both ends of optic fibre silk 4 extend respectively from opening 512 and are connected with the exit end of laser instrument 2 and the laser incidence end of optical module 3. The intracavity is accomodate in protection device 5's the most winding of longer optical fiber silk 4 for optical fiber silk 4 is by spacing protection, and optical fiber silk 4 can not collide with other parts, and optical fiber silk 4 self can not wrong twist each other and knot and rupture yet, has improved optical fiber silk 4's life.

The protector 5 is of a flat construction, the protector 5 having a flat side which is the plane of the lid 52 and a narrow side which is an annular surface surrounding the lid 52, the opening 512 being provided in the narrow side.

In this embodiment, the outgoing laser direction of the laser 2 and the incident laser direction of the optical module 3 are displaced in a plane, and the plane is defined as a first plane, and the flat surface of the protection device 5 is parallel to the first plane, so that the optical fiber filament 4 can be almost located in the same plane, bending of the optical fiber filament 4 is reduced as much as possible, and the optical fiber filament 4 can be further included.

In one embodiment, two openings 512 are provided, and two ends of the optical fiber 4 respectively penetrate through one opening 512, so that two ends of the optical fiber 4 extending out of the protection device 5 are separated from each other to avoid mutual winding.

In one embodiment, the box body 51 has a circular groove, and the box body 51 and the box cover 52 enclose a cylindrical containing cavity, which can also serve to contain the protective optical fiber 4.

In one embodiment, the protection device 5 is mounted on other components, and the shape of the protection device 5 is a square structure or other structures, so that the protection device 5 and the accessory components are matched with each other in space.

In one embodiment, the protection device 5 is integrated with the housing of the power supply 7, or the protection device 5 is integrated with the housing 1, so that the stability of the protection device 5 can be improved.

Referring to fig. 3, in an embodiment, the protection device 5 includes a first side plate 53, a second side plate 54 and a connection column 55, the connection column 55 is connected between the first side plate 53 and the second side plate 54, the first side plate 53, the second side plate 54 and the connection column 55 enclose an open annular groove 56, the first side plate 53 is installed on the power source 7 or other positions, and the optical fiber 4 is wound in the annular groove 56. The open annular groove 56 also accommodates and retains the wound fiber optic filaments 4, protecting the fiber optic filaments 4.

In one embodiment, the protection device 5 is a unitary structure, and the protection device 5 has an annular groove 56, which also enables the fiber optic filament 4 to be received and protected.

Referring to fig. 4, an embodiment of the endoscopic imaging system 1000 is provided, and the endoscopic imaging system 1000 includes the light source device 10, the light guide bundle 20, the hard tube endoscope 30, the optical bayonet 40, the camera 50, the camera connection line 81, the host 60, the display 70, and the video connection line 82 in the above embodiments.

The host 60 is connected to the camera 50 through a camera connection line 81, and an image signal obtained by the camera 50 is transmitted to the host 60 through the camera connection line 81 for processing.

In some embodiments, the camera connection cord 81 may be an optical communication cable, such as an optical fiber, and the camera connection cord 81 may also be an electrical communication cable, such as an electrical wire.

The camera 50 converts an image signal (electrical signal) into an optical signal, and the optical signal is transmitted to the host 60 through the camera connection line 81, and the host 60 converts the optical signal into an electrical signal. Host 60 is connected to display 70 via video connection 82 for sending video signals to display 70 for display.

The light source device 10 is used for providing an illumination light source to the portion to be observed 100, and includes laser light illumination and white light illumination.

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

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

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

In this embodiment, because the longer optical fiber 10 in the light source device 10 is accommodated and protected in the protection device 5, the damage of the optical fiber 10 is avoided, and the maintenance cost is reduced.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A light source device is characterized by comprising a box body, a laser, an optical module, an optical fiber and a protection device, wherein the laser, the optical module, the optical fiber and the protection device are positioned in the box body;

the laser is used for emitting laser;

the optical module is used for coupling laser and white light;

2. The light source device according to claim 1, wherein the protection device has a receiving cavity having an opening, the optical fiber filament is disposed in the receiving cavity, and both ends of the optical fiber filament are passed out of the opening.

3. The light source device according to claim 2, wherein the protective device is a flat structure having a flat face and a narrow side face, and the opening is provided on the narrow side face of the protective device.

4. The light source device according to claim 3, wherein a laser emitting direction of the laser and a laser entering direction of the optical module are located in a first plane, and the flat surface of the protection device is parallel to the first plane.

5. The light source device according to claim 1, wherein the receiving cavity is of an annular structure or a cylindrical structure.

6. The light source device according to claim 1, wherein the protection device includes a box body fixed in the box body and a box cover covering the box body, and the box body and the box cover enclose the receiving cavity.

7. The light source device of claim 1, wherein the protective device has an annular groove, the fiber optic filament being disposed within the annular groove, the fiber optic filament being wound within the annular groove.

8. The light source device according to claim 7, wherein the protection device includes a first side plate, a second side plate, and a connection column, the connection column is connected between the first side plate and the second side plate, the first side plate is fixed in the case, and the annular groove is formed between the first side plate and the second side plate.

9. The light source device according to claim 1, further comprising a white light emitter disposed in the case, the white light emitter being connected to the optical module, the white light emitter being configured to emit white light into the optical module.

10. An endoscope camera system, characterized by comprising a light guide beam, an endoscope, an optical bayonet, a camera connecting wire, a camera, a display, a video connecting wire, a host and the light source device of any one of claims 1 to 9, wherein an optical module of the light source device is connected with the endoscope through the light guide beam, one end of the camera is connected with the endoscope through the optical bayonet, the other end of the camera is connected with the host through the camera connecting wire, and the host is connected with the display through the video connecting wire.