Light guide tip and endoscope

Abstract

The light guide tip comprises a tip base, a first light-transmitting cover and a second light-transmitting cover, and the tip base is light-proof and is provided with a first containing space used for containing a camera shooting mechanism and a second containing space used for containing a lighting mechanism. A camera port communicated with the first accommodating space and a lighting port communicated with the second accommodating space are formed in the tip seat; the first light-transmitting cover is connected to the tip seat so as to seal the camera port; the second light-transmitting cover is connected to the tip seat so as to seal the illumination opening; wherein the tip seat, the first light-transmitting cover and the second light-transmitting cover are of an integrated double-color injection molding structure, the first containing space and the second containing space are not communicated with each other, and the first light-transmitting cover and the second light-transmitting cover are not connected with each other. According to the light guide tip, due to the fact that the first containing space and the second containing space are not communicated, the phenomena of optical crosstalk and the like are reduced, and due to the fact that the first light-transmitting cover and the second light-transmitting cover are not connected, the phenomena of color mixing and the like are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and particularly to a light guide tip and an endoscope. Background Art

[0002] An endoscope is used for visual inspection of inaccessible positions such as internal organs in the human body to observe pathological conditions. Generally, an endoscope includes an insertion tube, which has a handle at one end close to the operator, and a light guide tip at the end away from the operator. The light guide tip is provided with a camera mechanism and an illumination mechanism. However, there are problems such as light crosstalk and color mixing in existing light guide tips, which affect the image observation of the endoscope. Summary of the Utility Model

[0003] Based on this, in view of the problems such as light crosstalk and color mixing in the light guide tip, it is necessary to provide a light guide tip and an endoscope.

[0004] A light guide tip, comprising:

[0005] A tip base, which is light-impermeable, having a first accommodation space for accommodating a camera mechanism and a second accommodation space for accommodating an illumination mechanism. The tip base is provided with a camera port communicating with the first accommodation space and an illumination port communicating with the second accommodation space;

[0006] A first light-transmitting cover, which is connected to the tip base to seal the camera port;

[0007] A second light-transmitting cover, which is connected to the tip base to seal the illumination port;

[0008] Wherein, the tip base, the first light-transmitting cover, and the second light-transmitting cover are an integrally formed two-color injection molding structure. The first accommodation space and the second accommodation space do not communicate with each other, and the first light-transmitting cover and the second light-transmitting cover do not connect to each other.

[0009] The above-mentioned light guide tip is provided with a first accommodation space on the tip base to facilitate accommodating the camera mechanism, and a second accommodation space to facilitate accommodating the lighting mechanism. A camera port communicating with the first accommodation space is provided on the tip base. The camera mechanism in the first accommodation space can take pictures and record the structures outside the tip base through the camera port. A lighting port communicating with the second accommodation space is provided on the tip base. The light emitted by the lighting mechanism in the second accommodation space can be emitted outside the tip base through the lighting port. The first accommodation space and the second accommodation space are not connected, thereby reducing the phenomenon of light crosstalk between the camera mechanism in the first accommodation space and the lighting mechanism in the second accommodation space. Then, the first light-transmitting cover is used to seal the camera port to protect the camera mechanism in the first accommodation space, and the second light-transmitting cover is used to seal the lighting port to protect the lighting mechanism in the second accommodation space. Moreover, the first light-transmitting cover and the second light-transmitting cover are not connected to each other and are formed by separate processing, reducing the phenomenon of color mixing. For the light guide tip of the present application, the tip base, the first light-transmitting cover, and the second light-transmitting cover are an integrally formed two-color injection molding structure. The tip base is opaque, while the first light-transmitting cover and the second light-transmitting cover are light-transmitting. And because the first accommodation space and the second accommodation space are not connected, the phenomenon of light crosstalk is reduced. The first light-transmitting cover and the second light-transmitting cover are not connected to each other and are formed by separate processing, reducing the phenomenon of color mixing.

[0010] In one embodiment, the first light-transmitting cover includes a connected first light-transmitting portion and a first connecting portion. The first light-transmitting portion is disposed corresponding to the camera port, and the first connecting portion is connected to the circumferential side wall of the tip base.

[0011] In one embodiment, the second light-transmitting cover includes a connected second light-transmitting portion and a second connecting portion. The second light-transmitting portion is disposed corresponding to the lighting port, and the second connecting portion is connected to the circumferential side wall of the tip base.

[0012] In one embodiment, there are two second accommodation spaces, and two lighting ports corresponding to and communicating with the two second accommodation spaces are provided on the tip base;

[0013] There are two second light-transmitting covers, and the two second light-transmitting covers seal the two lighting ports in a one-to-one correspondence;

[0014] Wherein, the two second accommodation spaces are not connected to each other, and the two second light-transmitting covers are not connected to each other.

[0015] In one embodiment, the two lighting ports are respectively located on both sides of the camera port.

[0016] In one embodiment, the distal end face of the tip seat includes a first face and a second face connected to each other. The camera port and the illumination port are provided on the first face, and the second face is arranged at an angle to the first face to reduce the contact area between the distal end face and the human body passage.

[0017] In one embodiment, the first face is perpendicular to the central axis of the tip seat, and the angle between the second face and the central axis is between 15° and 30°.

[0018] In one embodiment, a through hole is provided on the tip seat, and the through hole is for a surgical instrument to pass through.

[0019] In one embodiment, the through hole is provided at the connection of the first face and the second face.

[0020] The present application also provides an endoscope including the light guiding tip as described in any one of the above. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the light guiding tip provided by the embodiment of the present application from the first perspective.

[0022] Figure 2 It is a schematic structural diagram of the light guiding tip provided by the embodiment of the present application from the second perspective.

[0023] Figure 3 It is a schematic structural diagram of the light guiding tip provided by the embodiment of the present application with a glue inlet and a flow channel provided thereon.

[0024] In the figure:

[0025] 100, tip seat; 110, distal end; 111, first face; 112, second face; 120, proximal end;

[0026] 200, first light transmissive cover;

[0027] 300, second light transmissive cover;

[0028] 400, through hole;

[0029] 500, glue inlet;

[0030] 600, flow channel. Detailed Embodiments

[0031] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present application.

[0033] In addition, if terms such as "first" and "second" appear, these terms are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0034] In the present application, unless otherwise clearly specified and limited, if terms such as "install", "connect", "join", "fix", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] In this application, unless otherwise clearly specified and defined, when a first feature is described as being "on" or "under" a second feature or similar descriptions, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0037] This application provides a light guide tip, as Figures 1 to 3 shown, the light guide tip includes a tip base 100, a first light-transmitting cover 200 and a second light-transmitting cover 300. The tip base 100 is light-impermeable and has a first accommodation space for accommodating a camera mechanism and a second accommodation space for accommodating an illumination mechanism. A camera port communicating with the first accommodation space and an illumination port communicating with the second accommodation space are provided on the tip base 100; the first light-transmitting cover 200 is connected to the tip base 100 to seal the camera port; the second light-transmitting cover 300 is connected to the tip base 100 to seal the illumination port; wherein, the tip base 100, the first light-transmitting cover 200 and the second light-transmitting cover 300 are an integrally formed two-color injection molding structure, the first accommodation space and the second accommodation space do not communicate with each other, and the first light-transmitting cover 200 and the second light-transmitting cover 300 are not connected to each other.

[0038] The above light guide tip is provided with a first accommodation space on the tip base 100 to facilitate accommodating the camera mechanism, and a second accommodation space to facilitate accommodating the lighting mechanism. A camera port communicating with the first accommodation space is provided on the tip base 100. The camera mechanism in the first accommodation space can take pictures and record the structure outside the tip base 100 through the camera port. A lighting port communicating with the second accommodation space is provided on the tip base 100. The light emitted by the lighting mechanism in the second accommodation space can be emitted outside the tip base 100 through the lighting port. The first accommodation space and the second accommodation space are not communicated, thereby reducing the phenomenon of light crosstalk between the camera mechanism in the first accommodation space and the lighting mechanism in the second accommodation space. Then, the first light-transmitting cover 200 is used to seal the camera port to protect the camera mechanism in the first accommodation space, and the second light-transmitting cover 300 is used to seal the lighting port to protect the lighting mechanism in the second accommodation space. Moreover, the first light-transmitting cover 200 and the second light-transmitting cover 300 are not connected to each other and are formed separately by individual processing, reducing the phenomenon of color mixing, etc. For the light guide tip of the present application, the tip base 100, the first light-transmitting cover 200, and the second light-transmitting cover 300 are an integrally formed two-color injection molding structure. The tip base 100 is opaque, while the first light-transmitting cover 200 and the second light-transmitting cover 300 are light-transmitting. And because the first accommodation space and the second accommodation space are not communicated, the phenomenon of light crosstalk, etc. is reduced. The first light-transmitting cover 200 and the second light-transmitting cover 300 are not connected to each other and are formed separately by individual processing, reducing the phenomenon of color mixing, etc.

[0039] In some embodiments, as Figures 1 to 3 shown, the first light-transmitting cover 200 includes a connected first light-transmitting portion and a first connecting portion. The first light-transmitting portion is correspondingly arranged with the camera port, and the first connecting portion is connected to the circumferential side wall of the tip base 100. By providing the first light-transmitting portion, the first light-transmitting portion is correspondingly arranged with the camera port, and external light can enter the first accommodation space through the first light-transmitting portion and the camera port. And by providing the first connecting portion, the tip base 100 and the first light-transmitting portion are connected.

[0040] In some embodiments, as Figures 1 to 3 shown, the second light-transmitting cover 300 includes a connected second light-transmitting portion and a second connecting portion. The second light-transmitting portion is correspondingly arranged with the lighting port, and the second connecting portion is connected to the circumferential side wall of the tip base 100. By providing the second light-transmitting portion, the second light-transmitting portion is correspondingly arranged with the lighting port, and the light emitted by the lighting mechanism in the second accommodation space can enter outside the tip base 100 through the lighting port and the second light-transmitting portion. And by providing the second connecting portion, the tip base 100 and the second light-transmitting portion are connected.

[0041] Specifically, as Figures 1 to 3As shown, there are two second accommodation spaces, and the distal end base 100 is provided with two lighting ports respectively corresponding to and communicating with the two second accommodation spaces; there are two second light-transmitting covers 300, and the two second light-transmitting covers 300 respectively seal the two lighting ports in a one-to-one correspondence; wherein, the two second accommodation spaces do not communicate with each other, and the two second light-transmitting covers 300 are not connected to each other. By providing two second accommodation spaces, both of the two second accommodation spaces are used to accommodate the lighting mechanism, and each second accommodation space is configured with a corresponding second light-transmitting cover 300 for sealing. Moreover, the two second accommodation spaces do not communicate with each other, reducing the phenomenon of light leakage between the two second accommodation spaces. The two second light-transmitting covers 300 are not connected to each other, that is, the two second light-transmitting covers 300 are both formed by independent injection molding, reducing the color mixing phenomenon generated when the two second light-transmitting covers 300 are formed.

[0042] More specifically, as Figures 1 to 3 shown, the two lighting ports are respectively located on both sides of the camera port. The lighting ports are respectively provided on both sides of the camera port, that is, the lighting mechanisms are both configured on both sides of the camera mechanism.

[0043] It should be noted that, as Figures 1 to 3 shown, when manufacturing the mold of the light guide distal end and injection molding the light guide distal end, in order to ensure the independence of the first light-transmitting cover 200 and the second light-transmitting cover 300, a corresponding injection port 500 is respectively added for the first light-transmitting cover 200 and the second light-transmitting cover 300. After injection molding, the injection port 500 and the runner 600 are removed by post-processing, so as to obtain a product meeting the design requirements.

[0044] It should be noted that, as Figures 1 to 3 shown, there are two second light-transmitting covers 300, then each second light-transmitting cover 300 is provided with a corresponding injection port 500, the first light-transmitting cover 200 is provided with a corresponding injection port 500, and the three injection ports 500 are connected through the runner 600, so as to facilitate the flow of the plastic melt to each injection port 500.

[0045] Furthermore, as Figures 1 to 3 shown, the distal end base 100 includes a proximal end 120 and a distal end 110. The proximal end 120 refers to the end close to the operator (medical staff), and the distal end 110 refers to the end far from the operator.

[0046] Specifically, as Figures 1 to 3 shown, the end face of the distal end 110 of the distal end base 100 includes a connected first face 111 and a second face 112. The camera port and the lighting port are provided on the first face 111, and the second face 112 is arranged at an angle with the first face 111 to reduce the contact area between the end face of the distal end 110 and the human body channel. The first face 111 and the second face 112 are arranged at an angle, thereby reducing the contact area between the distal end base 100 and the human body channel when entering the human body channel, so as to relieve the pain of the patient.

[0047] Specifically, as Figures 1 to 3 shown, the first surface 111 is perpendicular to the central axis of the tip seat 100, and the angle between the second surface 112 and the central axis is between 15° and 30°. The first surface 111 is perpendicular to the central axis of the tip seat 100, while the second surface 112 is arranged at an angle with the central axis, and the range of this angle is between 15° and 30°. By limiting the range of the angle between the second surface 112 and the central axis, the range of the angle between the first surface 111 and the second surface 112 is also limited.

[0048] In some embodiments, as Figures 1 to 3 shown, a through hole 400 is provided on the tip seat 100, and the through hole 400 is used for surgical instruments to pass through. By providing the through hole 400, it is convenient for surgical instruments to pass through, for example, it is convenient for surgical forceps, etc. to pass through.

[0049] Specifically, as Figures 1 to 3 shown, the through hole 400 is provided at the connection of the first surface 111 and the second surface 112. The second surface 112 of the tip seat 100 is an inclined plane relative to the first surface 111. The second surface 112 reduces the contact area between the tip seat 100 and the human body channel, and the through hole 400 is provided at the connection of the first surface 111 and the second surface 112, that is, part of the end face area of the through hole 400 is arranged in the first surface 111, and part of the area is arranged in the second surface 112.

[0050] This application also provides an endoscope, including the light guide tip of any one of the above. By setting the first accommodation space and the second accommodation space not to communicate, phenomena such as light leakage are reduced, and by making the first light-transmitting cover 200 and the second light-transmitting cover 300 not connected to each other, the first light-transmitting cover 200 and the second light-transmitting cover 300 are separately processed and formed, reducing phenomena such as color mixing, and improving the accuracy of image observation of the endoscope.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as the scope described in this specification.

[0052] The above-described embodiments only represent several implementation manners of this application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of this application patent should be subject to the appended claims.

Claims

1. A light guide tip, characterized in that, The light guide tip includes: A tip base, the tip base is light-impermeable, having a first accommodation space for accommodating the imaging mechanism and a second accommodation space for accommodating the lighting mechanism, and the tip base is provided with an imaging port communicating with the first accommodation space and a lighting port communicating with the second accommodation space; A first light-transmitting cover, the first light-transmitting cover is connected to the tip base to seal the imaging port; A second light-transmitting cover, the second light-transmitting cover is connected to the tip base to seal the lighting port; Wherein, the tip base, the first light-transmitting cover, and the second light-transmitting cover are an integrally molded two-color injection molding structure, the first accommodation space and the second accommodation space do not communicate with each other, and the first light-transmitting cover and the second light-transmitting cover do not connect with each other.

2. The light guide tip according to claim 1, characterized in that, The first light-transmitting cover includes a connected first light-transmitting part and a first connecting part, the first light-transmitting part is arranged corresponding to the imaging port, and the first connecting part is connected to the circumferential side wall of the tip base.

3. The light guide tip according to claim 1, wherein The second light-transmitting cover includes a connected second light-transmitting part and a second connecting part, the second light-transmitting part is arranged corresponding to the lighting port, and the second connecting part is connected to the circumferential side wall of the tip base.

4. The light guide tip according to claim 2, characterized in that, There are two second accommodation spaces, and the tip base is provided with two lighting ports respectively and correspondingly communicating with the two second accommodation spaces; There are two second light-transmitting covers, and the two second light-transmitting covers respectively and correspondingly seal the two lighting ports; Wherein, the two second accommodation spaces do not communicate with each other, and the two second light-transmitting covers do not connect with each other.

5. The light guide tip according to claim 4, characterized in that, The two lighting ports are respectively located on both sides of the imaging port.

6. The light guide tip according to claim 1, characterized in that, The distal end face of the tip base includes a connected first face and a second face, the imaging port and the lighting port are arranged on the first face, and the second face is arranged at an angle to the first face for reducing the contact area between the distal end face and the human body channel.

7. The light guide tip according to claim 6, wherein The first face is perpendicular to the central axis of the tip base, and the angle between the second face and the central axis is between 15° and 30°.

8. The light guide tip according to claim 6, characterized in that, The tip base is provided with a through hole for a surgical instrument to pass through.

9. The light guide tip according to claim 8, wherein The through hole is arranged at the connection of the first face and the second face.

10. An endoscope, characterized in that, It includes the light guide tip according to any one of claims 1-9.

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