Light guide plug and endoscope

Abstract

The embodiment of the utility model provides a light guide plug and an endoscope, and relates to the field of endoscopes. The light guide plug comprises a light guide plug seat, an electrical female joint and an electrical male joint, the electrical female joint comprises a connecting female seat, a bayonet lock and a positioning pin, the bayonet lock and the positioning pin are arranged on the connecting female seat, and the connecting female seat is arranged on the light guide plug seat and is in sealed connection with the light guide plug seat; the electrical male connector comprises a connecting male seat and a positioning seat, the positioning seat is arranged in the connecting male seat, the positioning seat and the connecting male seat can rotate relative to each other, a clamping groove is formed in the connecting male seat, and a positioning anti-rotation groove is formed in the positioning seat; when the electrical male connector is connected with the electrical female connector, the clamping pin is aligned with the clamping groove and clamped in the clamping groove, and meanwhile, the positioning pin is aligned with the positioning anti-rotation groove and clamped in the positioning anti-rotation groove, so that quick connection is realized, and the operation is very convenient. The embodiment of the utility model further provides an endoscope which comprises the light guide plug.

Description

A light guide plug and endoscope Technical Field

[0001] This utility model relates to the field of endoscopes, and more specifically, to a light guide plug and an endoscope. Background Technology

[0002] A fiber optic endoscope is an endoscope that uses optical fibers to transmit light. It generally includes a tip, an insertion section, an operating section, a flexible light guide tube, and a light guide plug. The light guide plug is equipped with a light guide rod, an air inlet, an electrical connector, a water bottle interface, and a suction interface. The tip and insertion section can enter the body cavity through natural openings or surgical incisions to examine hard-to-reach internal structures. When a cold light source is connected to the light guide rod, and an image processing and display device is connected via the electrical connector, the light emitted from the cold light source is transmitted through the optical fiber to the tip, providing illumination for the examination. Medical personnel can then directly observe images of the internal organs on the display device.

[0003] The existing electrical connectors on the light guide plug are cumbersome to connect and disconnect during use, have poor sealing, and pose a risk of insufficient disinfection during sterilization, making them inconvenient to use. Summary of the Invention

[0004] This invention provides a light guide plug and an endoscope, which can solve the problem of inconvenient use of electrical connectors in existing endoscopes.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] An embodiment of this utility model provides a light guide plug, which includes:

[0007] Light guide plug socket;

[0008] An electrical female connector includes a connecting female seat, a locking pin, and a positioning pin. The locking pin and the positioning pin are both located on the connecting female seat. The connecting female seat is located on the light guide plug seat and is sealed to the light guide plug seat.

[0009] An electrical male connector includes a connecting male seat and a positioning seat. The positioning seat is located inside the connecting male seat and the two can rotate relative to each other. The connecting male seat is provided with a slot, and a locking pin can be locked in the slot. The positioning seat is provided with a positioning anti-rotation groove, and a positioning pin can be locked in the positioning anti-rotation groove.

[0010] Optionally, the electrical female connector also includes a contact female seat, which is disposed inside the connecting female seat and sealed to the light guide plug seat. The contact female seat is provided with multiple female contacts, all of which are sealed to the contact female seat.

[0011] The electrical male connector also includes a contact male seat, on which multiple male contacts are provided, and the multiple male contacts correspond one-to-one with and are connected to multiple female contacts.

[0012] Optionally, the electrical male connector also includes a housing, and both the housing and the female connector are provided with corresponding positioning marks.

[0013] Optionally, the positioning anti-rotation groove is located on the outer wall of the positioning seat, and the positioning anti-rotation groove is opened along the axial direction of the positioning seat.

[0014] Optionally, one end of the positioning anti-rotation groove has a guide opening.

[0015] Optionally, the slot is spirally arranged on the connecting male seat, and the end of the slot has a stop for limiting the locking pin and the positioning pin.

[0016] Optionally, there may be multiple card slots, which are spaced apart from each other.

[0017] Optionally, the light guide plug socket is connected to a venting component, allowing external gas to enter the interior of the light guide plug socket through the venting component.

[0018] Optionally, the light guide plug socket is also equipped with an attraction connector and a water bottle connector.

[0019] An embodiment of this utility model also provides an endoscope, including a light guide plug.

[0020] The beneficial effects of this utility model embodiment:

[0021] The light guide plug includes a light guide plug socket, an electrical female connector, and an electrical male connector. The electrical female connector includes a connecting female base, a locking pin, and a positioning pin. Both the locking pin and the positioning pin are located on the connecting female base, which is sealed to the light guide plug socket. The electrical male connector includes a connecting male base and a positioning base. The positioning base is located inside the connecting male base and both can rotate relative to each other. The connecting male base has a locking groove, and the positioning base has a positioning anti-rotation groove. When connecting the electrical male connector and the electrical female connector, the locking pin aligns with the locking groove and engages, while the positioning pin aligns with the positioning anti-rotation groove and engages, achieving a quick connection. When separating the electrical male connector and the electrical female connector, simply reverse the direction, removing the locking pin from the locking groove and the positioning pin from the positioning anti-rotation groove. The operation is very convenient. Furthermore, the connecting female base, contact female base, and female contact are all sealed on the light guide plug socket, ensuring good sealing of the electrical connector, thus allowing for thorough disinfection of the electrical connector.

[0022] The endoscope includes a light guide plug, which has all the functions of a light guide plug. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 is a schematic diagram of the overall structure of the light guide plug provided in an embodiment of this utility model;

[0025] Figure 2 is a cross-sectional view of the light guide plug provided in an embodiment of the present invention along the axial direction.

[0026] Figure 3 is a schematic diagram of the electrical female connector and the light guide plug socket provided in an embodiment of this utility model;

[0027] Figure 4 is a schematic diagram of the electrical male connector provided in an embodiment of this utility model;

[0028] Figure 5 is a magnified view of part B in Figure 2.

[0029] Icons: 1-Light guide plug socket; 10-Connecting flange; 11-Suction connector; 12-Water bottle connector; 13-Light guide tube; 14-Air supply tube; 2-Electrical female connector; 20-Connecting female socket; 201-Clamping pin; 202-Positioning pin; 21-Contact female socket; 211-Female contact; 212-Blind hole; 22-Connecting plate; 23-Accommodation cavity; 3-Electrical male connector; 30-Connecting male socket; 301-Clamping slot; 302-Stay stop; 31-Positioning seat; 311-Positioning anti-rotation groove; 32-Contact male socket; 321-Male contact; 322-Protrusion; 33-Housing shell; 331-Positioning mark; 34-Annular cavity; 4-Ventilation assembly; 40-Connecting housing; 41-Fixing seat; 411-Ventilation hole; 42-Connecting nozzle; 43-Push rod; 44-Spring; 45-Seal. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0035] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0038] Currently, electrical connectors on endoscopes are cumbersome to connect and disconnect, have poor sealing, and are not adequately sterilized, making them inconvenient to use, affecting surgical efficiency, and even posing a risk of surgical infection.

[0039] Therefore, in this embodiment of the present invention, a light guide plug and an endoscope are provided, which can solve the above problems. They will be described in detail below.

[0040] Please refer to Figures 1 to 4. The light guide plug includes a light guide plug base 1, an electrical female connector 2, and an electrical male connector 3. The electrical female connector 2 includes a connecting female base 20, a locking pin 201, and a positioning pin 202. The locking pin 201 and the positioning pin 202 are both disposed on the connecting female base 20. The connecting female base 20 is disposed on the light guide plug base 1 and is sealed to the light guide plug base 1. The electrical male connector 3 includes a connecting male base 30 and a positioning base 31. The positioning base 31 is disposed inside the connecting male base 30 and the two can rotate relative to each other. The connecting male base 30 is provided with a locking groove 301, and the positioning base 31 is provided with a positioning anti-rotation groove 311. When the separated male electrical connector 3 needs to be connected to the female electrical connector 2 to output an image, the male electrical connector 3 and the female electrical connector 2 are aligned, with the locking pin 201 aligned with the slot 301 and the positioning pin 202 aligned with the positioning anti-rotation groove 311. The male electrical connector 3 and the female electrical connector 2 rotate relative to each other, so that the locking pin 201 is locked in the slot 301 and the positioning pin 202 is locked in the positioning anti-rotation groove 311, thereby realizing the connection between the male electrical connector 3 and the female electrical connector 2. When it is necessary to separate the male electrical connector 3 and the female electrical connector 2, simply rotate in the opposite direction to remove the locking pin 201 from the slot 301 and the positioning pin 202 from the positioning anti-rotation groove 311. The operation is very convenient.

[0041] Specifically, the interior of the light guide plug 1 is a hollow cavity, which is used to house components such as the light guide rod. The hollow cavity extends through both ends of the light guide plug 1. A light guide tube 13 and an air supply pipe 14 are arranged at one end of the light guide plug 1 via a connecting flange 10. The connecting flange 10 is used to position the light guide tube 13 and the air supply pipe 14 to stabilize their positions on the light guide plug 1. The light guide tube 13 is used to output light, and the air supply pipe 14 is used to deliver compressed air. The other end of the light guide plug 1 is connected to the ventilation assembly 4 to facilitate leak testing of the light guide plug 1 and the electrical female connector 2, or to perform gas sterilization of the light guide plug 1 and the electrical female connector 2.

[0042] Electrical female connector 2 is located on the side of light guide plug 1, between the two ends of light guide plug 1.

[0043] The electrical female connector 2 includes a connecting female base 20, a contact female base 21, and a connecting plate 22. The connecting female base 20 is fixed on the connecting plate 22. The connecting plate 22 is connected to the light guide plug socket 1 by screws. The contact female base 21 is located inside the connecting female base 20. The connecting female base 20 and the contact female base 21 are concentrically arranged, and a receiving cavity 23 is formed between the connecting female base 20 and the contact female base 21. A plurality of female contacts 211 are evenly arranged on the contact female base 21. The plurality of female contacts 211 are arranged in a circle at equal intervals. One end of the female contact 211 extends into the interior of the light guide plug socket 1 and is connected to the internal circuit of the endoscope.

[0044] Since endoscopes come into direct contact with the human body during use, they inevitably become contaminated with tissue fluid or blood. Therefore, endoscopes need to be cleaned and disinfected after use to avoid cross-infection. Existing endoscope disinfection methods generally use immersion or high-temperature, high-pressure gas disinfection. Therefore, the parts that need to be exposed for immersion must have high corrosion resistance, and the connection points of the components must have good sealing performance. For this reason, in this embodiment, the connecting plate 22 and the light guide plug socket 1 are connected in a sealed manner. The connecting female socket 20 and the contact female socket 21 on the connecting plate 22 are also connected in a sealed manner to the light guide plug socket 1. For example, a high-temperature resistant sealant is used for sealing. Of course, the connecting plate 22 and the connecting female socket 20 can also be integrally formed, and / or the connecting plate 22 and the contact female socket 21 can also be integrally formed to ensure good sealing performance. Secondly, the female contact 211 and the contact female socket 21 are sealed together. The female contact 211 also needs to be made of a corrosion-resistant, high-temperature, and high-pressure resistant conductive material.

[0045] Referring to Figure 4, the electrical male connector 3 includes a connecting male base 30, a positioning base 31, a contact male base 32, and a housing 33. The housing 33, the connecting male base 30, the positioning base 31, and the contact male base 32 are arranged concentrically from the outside to the inside. Of course, the housing 33 and the connecting male base 30 can be connected separately or integrally formed.

[0046] The male connector 30 has multiple slots 301 on its circumferential wall surface, with at least two slots per slot. These slots 301 are spaced apart and are used to engage with locking pins 201 and positioning pins 202. In this embodiment, there are three slots 301, two locking pins 201, and one positioning pin 202. The three slots 301 are evenly spaced on the male connector 30, and similarly, the two locking pins 201 and the positioning pin 202 are also evenly spaced on the female connector 20. The slot 301 is spirally mounted on the connector 30, and its end has a stop 302 that limits the locking pin 201 and the positioning pin 202. When the locking pin 201 and the positioning pin 202 slide relative to each other along the slot 301 and slide to the stop 302, they are fixed at the stop 302 and will not slide out of the slot 301, ensuring the stability of the connection. The stop 302 has a protruding portion between it and the slot 301, preventing the locking pin 201 or the positioning pin 202 from easily sliding through.

[0047] To further increase the reliability of the connection between the male electrical connector 3 and the female electrical connector 2 and to prevent relative rotation between them after connection, a positioning anti-rotation groove 311 is provided on the outer wall of the positioning seat 31. The positioning anti-rotation groove 311 is opened along the axial direction of the positioning seat 31. At the same time, the end of the positioning pin 202 penetrates through the side wall of the female connector 20 and extends radially. During the connection / separation process of the male electrical connector 3 and the female electrical connector 2, the positioning pin 202 is inserted into the positioning anti-rotation groove 311. Since the positioning anti-rotation groove 311 is opened along the axial direction of the positioning seat 31, the positioning pin 202 cannot rotate circumferentially, thereby ensuring the firmness of the connection between the female electrical connector 2 and the male electrical connector 3.

[0048] Optionally, the end of the positioning anti-rotation groove 311 has a guide opening, which is flared in shape, to facilitate the insertion of the positioning pin 202 into the positioning anti-rotation groove 311.

[0049] It is worth mentioning that, since the position of the positioning seat 31 is relatively fixed, the connecting male seat 30 and the outer shell 33 can rotate relative to the positioning seat 31. When it is necessary to connect the electrical male connector 3 and the electrical female connector 2, the positioning pin 202 is aligned with the guide opening of the positioning anti-rotation groove 311 and pressed against each other. Then, the connecting male seat 30 and the outer shell 33 are rotated, so that the positioning pin 202 slides along the slot 301 until the positioning pin 202 reaches the stop position 302. It can be understood that when the positioning pin 202 is aligned with the positioning anti-rotation groove 311, the two locking pins 201 are also aligned with the entrances of the two slots 301 respectively. When the positioning pin 202 slides along the slot 301, the two locking pins 201 also slide synchronously along the other two slots 301.

[0050] Optionally, both the outer casing 33 and the connecting female 20 are provided with corresponding positioning marks 331, which helps users quickly identify which one is the positioning pin 202 and avoids incorrect docking.

[0051] Referring again to Figure 4, the male contact 32 is provided with multiple male contacts 321, which are adapted to multiple female contacts 211 to ensure that after the electrical female connector 2 and the electrical male connector 3 are connected, the multiple male contacts 321 and the multiple female contacts 211 can correspond one-to-one and connect, thereby outputting a complete image signal. It is understandable that both the male contacts 321 and the female contacts 211 are conductors and can transmit signals or current.

[0052] To increase the reliability of the connection between the male contact 321 and the female contact 211, a blind hole 212 is provided on the female contact seat 21, and a protrusion 322 is provided in the middle of the male contact seat 32. The male contact 321 is arranged around the protrusion 322. When the electrical female connector 2 and the electrical male connector 3 are connected, the protrusion 322 is inserted into the blind hole 212 to avoid radial displacement between the electrical female connector 2 and the electrical male connector 3.

[0053] An annular cavity 34 is formed between the male connector 30 and the positioning seat 31. When the electrical female connector 2 and the electrical male connector 3 are connected, the positioning seat 31 and the contact male connector 32 are housed in the receiving cavity 23 of the electrical female connector 2, and the female connector 20 is housed in the annular cavity 34.

[0054] Referring to Figure 5 and in conjunction with Figure 2, the light guide plug 1 is connected to a ventilation component 4. External gas can enter the interior of the light guide plug 1 through the ventilation component 4. The ventilation component 4 can be used to test for leaks in the light guide plug 1, and can also be used to disinfect and sterilize the light guide plug 1 with high temperature and high pressure gas.

[0055] The ventilation assembly 4 includes an annular connecting housing 40, which is threadedly connected to the light guide plug seat 1, and a sealing ring is provided at the connection to achieve a seal. The ventilation assembly 4 also includes a fixing seat 41, a connecting nozzle 42, a push rod 43, and a spring 44. The fixing seat 41 and the connecting nozzle 42 are both connected to the connecting housing 40.

[0056] Specifically, the connecting nozzle 42 has an axial through hole that extends through both ends of the connecting nozzle 42. A push rod 43 is installed within the axial through hole. The upper part of the push rod 43 has a protruding convex block that can engage with the top side wall of the connecting nozzle 42, serving as a limiting element. A sealing element 45 is provided on the convex block of the push rod 43, sealing the lower and upper parts of the convex block. The outer wall of the fixing seat 41 is threaded, and the inner wall of the connecting nozzle 42 is threaded. The fixing seat 41 and the connecting nozzle 42 are connected by threads. The fixing seat 41 has a vent hole 411 connecting the interior of the connecting nozzle 42 to the connecting housing 40. A spring 44 is positioned between the convex block and the fixing seat 41, and is also sleeved on the outside of the push rod 43. The sealing element 45 can be an O-ring.

[0057] When the connector 42 is connected to high-pressure and high-temperature gas, the high-pressure and high-temperature gas pushes the push rod 43 downward, compresses the spring 44, and the seal 45 is disengaged from the connector 42. The high-pressure and high-temperature gas enters the shaft through hole and passes through the vent hole 411 into the interior of the connector housing 40 and the light guide connector, thereby achieving high-temperature disinfection and sterilization.

[0058] The light guide plug socket 1 is also equipped with a suction connector 11 and a water bottle connector 12. The suction connector 11 can be connected to an external negative pressure suction device for aspirating tissue fluid / blood / cleaning waste fluid; the water bottle connector 12 can be connected to an external clean water supply device for cleaning the tip of the endoscope or human diseased tissue. The suction connector 11 and the water bottle connector 12 can be of existing technology, which will not be described in detail here.

[0059] Furthermore, in this embodiment, the arrangement of the female contact seat 21 and the male contact seat 32 both adopt the existing technical design scheme, which can be referred to in the patent with publication number CN222365832U, and will not be repeated here.

[0060] In this embodiment of the utility model, the electrical female connector 2 and the electrical male connector 3 are connected by a rotary plug-in method, which makes it very convenient to connect and disconnect them. The operation is simple and does not require any additional auxiliary tools.

[0061] An embodiment of this utility model also provides an endoscope including the aforementioned light guide plug, which has all the functions of a light guide plug.

[0062] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A light guide plug, characterized in that, include: A light guide plug socket (1); an electrical female connector (2), the electrical female connector (2) including a connecting female socket (20), a locking pin (201) and a positioning pin (202), the locking pin (201) and the positioning pin (202) are both disposed on the connecting female socket (20), the connecting female socket (20) is disposed on the light guide plug socket (1) and is sealed to the light guide plug socket (1); an electrical male connector (3), the electrical male connector (3) including a connecting male socket (30) and a positioning seat (31), the positioning seat (31) is disposed inside the connecting male socket (30) and the two can rotate relative to each other, the connecting male socket (30) is provided with a slot (301), the locking pin (201) can be locked in the slot (301), the positioning seat (31) is provided with a positioning anti-rotation groove (311), and the positioning pin (202) can be locked in the positioning anti-rotation groove (311).

2. The light guide plug according to claim 1, characterized in that, The electrical female connector (2) also includes a contact female seat (21), which is disposed inside the connecting female seat (20) and sealed to the light guide plug seat (1). The contact female seat (21) is provided with a plurality of female contacts (211), and the plurality of female contacts (211) are sealed to the contact female seat (21). The electrical male connector (3) also includes a contact male seat (32), which is provided with a plurality of male contacts (321), and the plurality of male contacts (321) correspond one-to-one with the plurality of female contacts (211) and are connected to each other.

3. The light guide plug according to claim 1, characterized in that, The electrical male connector (3) also includes a housing (33), and both the housing (33) and the female connector (20) are provided with corresponding positioning marks (331).

4. The light guide plug according to claim 1, characterized in that, The positioning anti-rotation groove (311) is located on the outer wall of the positioning seat (31), and the positioning anti-rotation groove (311) is opened along the axial direction of the positioning seat (31).

5. The light guide plug according to claim 4, characterized in that, The positioning anti-rotation groove (311) has a guide opening at one end.

6. The light guide plug according to claim 1, characterized in that, The slot (301) is spirally arranged on the connecting male seat (30), and the end of the slot (301) has a stop (302) that defines the locking pin (201) and the positioning pin (202).

7. The light guide plug according to claim 1, characterized in that, The number of card slots (301) is multiple, and the multiple card slots (301) are arranged at intervals.

8. The light guide plug according to claim 1, characterized in that, The light guide plug (1) is connected to a ventilation component (4), allowing external gas to enter the interior of the light guide plug (1) through the ventilation component (4).

9. The light guide plug according to any one of claims 1-8, characterized in that, The light guide plug socket (1) is also provided with an attraction connector (11) and a water bottle connector (12).

10. An endoscope, characterized in that, Includes the light guide plug as described in any one of claims 1-9.

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