Cold light source light guide beam plug-in device and endoscope system

Abstract

The utility model relates to the technical field of medical equipment provides a cold light source light beam plug connector and endoscope system, the cold light source light beam plug connector has the light beam insertion hole, and the cold light source light beam plug connector includes a plurality of fixed units along the axial direction of light beam insertion hole is arranged, compared with prior art, can improve the fixing strength between light beam and cold light source light beam plug connector, the fixed end of light beam is guaranteed in the firmness in the use process, the fixed end of light beam does not occur in the use process, the relative position between the fixed end of light beam and cold light source does not have the subtle change, and the light intensity does not change, therefore, will not influence the image definition when endoscope inspection.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a cold light source beam guide connector and an endoscope system. Background Technology

[0002] An endoscope system is a medical instrument used to acquire images of areas inside the human body for examination, providing doctors with information for diagnosis or treatment. It typically includes an image processing system, an illumination system, and an endoscope. The endoscope, as a crucial component of the endoscope system, can be inserted into the body through natural orifices (such as the mouth, nose, or rectum) or tiny surgical incisions to provide doctors with real-time images. The endoscope is connected to the image processing system via cables and to the illumination system via a beam guide.

[0003] The lighting system includes an endoscope cold light source main unit, which comprises a cold light source main unit housing, a cold light source beam guide connector, and a cold light source. The cold light source beam guide connector is located inside or partially mounted on the cold light source main unit housing. The cold light source is connected to the cold light source beam guide connector. During endoscopy, the beam guide is first inserted into the cold light source beam guide connector to guide the light emitted by the cold light source. Thus, when the doctor inserts the beam guide into the body, it illuminates the area to be examined.

[0004] Endoscopic systems can be used in surgical robotic systems, which include a surgeon's console, an imaging platform, and a patient operating platform. The endoscope system is mounted on the imaging platform, while the patient operating platform has multiple robotic arms. The endoscope can be attached to the end of one of these robotic arms. The surgeon controls the movement of the robotic arms via the console, which in turn moves the endoscope to acquire images from different angles inside the body. However, the movement of the robotic arms causes the endoscope's beam guide to sway. If the connection between the beam guide and the cold light source is unstable, slight changes in their position can occur, resulting in variations in light intensity and affecting the clarity of the endoscopic images. Therefore, the stability of the beam guide and its connection is crucial for obtaining clear endoscopic images.

[0005] Existing fixing devices between beamguides and beamguide connectors can be divided into two types. One type involves an interference fit between the outer wall of the beamguide and the wall of the insertion hole of the beamguide connector. Although this method can fix the beamguide in both the axial and radial directions, due to the manufacturing tolerance between the outer diameter of the beamguide and the hole diameter, the interference between the beamguide and the hole wall is often too large during the design, resulting in excessive insertion or extraction force required for later insertion or removal of the beamguide connector, which is inconvenient for doctors to use. The other type involves setting a fixing element between the outer wall of the beamguide and the beamguide connector. The fixing point is usually located at the connection end of the beamguide away from the cold light source.

[0006] However, the beam guides connecting the connectors of the beam guide plug-in device and the endoscope are quite long; for example, the beam guide length of a surgical robot is typically 3-5 meters. To allow the endoscope to acquire images of human tissue from different angles, the robotic arm needs to change position during surgery according to the surgeon's needs. This causes the beam guide to sway because it is suspended in mid-air without any fixing measures to improve vibration resistance. This results in slight changes in the relative position between the beam guide and the cold light source, leading to variations in light intensity and affecting the image clarity during endoscopic examination. While fixing the beam guide to the ground or the instrument's casing can improve its vibration resistance and reduce the impact of beam swaying on the fixation strength between the beam guide and the cold light source, this is not suitable for specific applications like surgical robots. It limits the robotic arm's flexibility, making it impossible to accurately acquire images of human tissue at specific angles. Furthermore, after surgery, the endoscope and beam guide need to be sterilized. If a fixing device is used, the device must be opened before the beam guide can be removed from the cold light source, which is inconvenient. Utility Model Content

[0007] This invention provides a cold light source beam guide insertion device and an endoscope system to solve the technical problems in the prior art where the fixing strength between the beam guide and the cold light source beam guide insertion device is poor and the relative position between the beam guide and the cold light source is prone to slight changes.

[0008] This utility model provides a cold light source beam guide insertion device, which has a beam guide insertion hole; the cold light source beam guide insertion device includes multiple fixing units arranged along the axial direction of the beam guide insertion hole.

[0009] According to one embodiment of the present invention, the cold light source beam guide insertion device includes an insertion device body, a first fixing unit and a second fixing unit; a beam guide insertion hole is provided on the insertion device body; the first fixing unit and the second fixing unit are arranged at intervals along the axial direction of the beam guide insertion hole on the insertion device body.

[0010] According to one embodiment of the present invention, the diameter of the beam guide insertion hole is greater than the diameter of the fixed end of the beam guide; and / or, the distance between the first fixing unit and the second fixing unit is L1, the length of the beam guide inserted into the insertion end of the beam guide insertion hole is L2, and L1 / L2 is greater than or equal to 2 / 3 and less than 1.

[0011] According to one embodiment of the present invention, the plug-in device body has at least one first mounting portion for mounting a first fixing unit, the first mounting portion being connected to a beam guide insertion hole.

[0012] According to one embodiment of the present invention, there are multiple first mounting parts, and the multiple first mounting parts are arranged at intervals along the circumferential direction of the beam guide insertion hole.

[0013] According to one embodiment of the present invention, the number of the first mounting parts is odd.

[0014] According to one embodiment of the present invention, the wall of the beam guide insertion hole is provided with a second mounting portion for mounting a second fixing unit, and the second mounting portion is arranged around the beam guide insertion hole.

[0015] According to one embodiment of the present invention, the first fixing unit and the second fixing unit are elastic fixing elements.

[0016] According to one embodiment of the present invention, the first fixing unit is a ball-head plunger; and / or, the second fixing unit is a crown spring.

[0017] According to one embodiment of the present invention, a blocking unit is also included. The blocking unit is located inside the beam guide insertion hole and is movably connected to the side wall of the beam guide insertion hole. When the fixed end of the beam guide is not inserted into the beam guide insertion hole, the blocking unit closes the beam guide insertion hole, and / or when the fixed end of the beam guide is located in the beam guide insertion hole, the blocking unit opens the beam guide insertion hole.

[0018] This utility model also provides an endoscope system, including: an endoscope cold light source main unit, including a cold light source main unit housing, a cold light source, a cold light source beam guide insertion device as described above, and a beam guide; the cold light source beam guide insertion device is located inside the cold light source main unit housing and connected to the cold light source main unit housing, and has a beam guide insertion hole; the cold light source is connected to the cold light source beam guide insertion device and is used to provide light source for the beam guide; the fixed end of the beam guide is used to be inserted into the beam guide insertion hole.

[0019] The features and advantages of this utility model of cold light source beam guide connector and endoscope system are as follows:

[0020] With the light guide inserted into the light guide insertion hole, the cold light source light guide insertion device can connect the light guide at different positions along the axis of the light guide insertion hole. That is, there are multiple fixing points between the light guide and the cold light source light guide insertion device. Therefore, compared with the prior art, the fixing strength between the light guide and the cold light source light guide insertion device can be improved, ensuring the firmness of the light guide during use. This solves the technical problem of poor fixing strength between the light guide and the cold light source light guide insertion device in the prior art. During use, the light guide will not shake, the relative position between the light guide and the cold light source will not change slightly, and there will be no change in light intensity. Therefore, it will not affect the image clarity during endoscopic examination. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of the lighting system of this utility model.

[0023] Figure 2 This is a three-dimensional schematic diagram of the beam guide insertion device of this utility model into a cold light source beam guide insertion device.

[0024] Figure 3 This is an exploded view of the beam guide insertion device of this utility model into a cold light source beam guide insertion device.

[0025] Figure 4 This is an exploded view of the main body of the cold light source beam guide insertion device of this utility model.

[0026] Figure 5 This is a front view schematic diagram of the cold light source beam guide insertion device of this utility model.

[0027] Figure 6 yes Figure 4 A cross-sectional view along the AA direction.

[0028] Figure 7 yes Figure 6 Enlarged view of section B in the middle.

[0029] Figure label:

[0030] 100. Cold light source beam guide insertion device; 101. Insertion device body; 110. Beam guide insertion hole; 120. First mounting part; 130. Second mounting part; 140. Cold light source mounting hole; 1011. First end; 1012. Second end; 102. First fixing unit; 103. Second fixing unit; 150. Sealing unit; 200. Beam guide; 201. Fixing end; 202. Suspension section; 203. Endoscope connection end; 2011. Slot; 300. Endoscope cold light source main unit; T. Extension direction of the beam guide insertion hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions 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, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and are not intended to 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 embodiment.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this embodiment, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this embodiment, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0035] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] Figure 1 A schematic diagram of the overall lighting system proposed in this utility model is shown. The lighting system includes a cold light source beam guide connector 100, a beam guide 200, and an endoscope cold light source main unit 300. The cold light source beam guide connector 100 is mounted on the endoscope cold light source main unit 300. The beam guide 200 includes an endoscope connection end 203, a suspension section 202, and a fixed end 201. The endoscope connection end 203 is connected to the endoscope, and the fixed end 201 is connected to the cold light source beam guide connector 100. In use, the fixed end 201 of the beam guide 200 is inserted into the cold light source beam guide connector 100 to guide the cold light source of the endoscope cold light source main unit 300 sequentially from the fixed end 201, the suspension section 202, and the endoscope connection end 203 onto the endoscope, thereby illuminating the part of the body to be examined.

[0037] Figures 2 to 7 The cold light source beam guide connector 100 and endoscope system provided by this utility model are shown. As can be seen from the figure, the cold light source beam guide connector 100 of this utility model has a beam guide insertion hole 110; the cold light source beam guide connector includes multiple fixing units arranged along the axial direction of the beam guide insertion hole (110). When the fixing end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110, the cold light source beam guide connector 100 is used to fix the fixing end 201 of the beam guide 200 at multiple positions along the axial direction of the beam guide insertion hole 110.

[0038] In specific implementation, with the fixed end 201 of the beam guide 200 inserted into the beam guide insertion hole 110, the cold light source beam guide connector 100 can fix the fixed end 201 of the beam guide 200 at multiple positions along the extension direction T (axial direction) of the beam guide insertion hole 110. That is, there are multiple fixing points between the fixed end 201 of the beam guide 200 and the cold light source beam guide connector 100, not just one. Therefore, compared to the prior art where the fixed end 201 is usually only fixed to the cold light source beam guide connector in the axial direction of the beam guide, the fixed end 201 of the beam guide 200 can fix the fixed end 201 of the beam guide 200 at multiple positions along the extension direction T (axial direction) of the beam guide. A fixed point enhances the fixation strength between the beam guide 200 and the cold light source beam guide connector 100, ensuring the beam guide 200's stability during use. During operation, although the movement of the surgical robot's robotic arm causes the suspension section 202 to sway, the high fixation strength between the fixed end 201 and the cold light source beam guide connector 100 prevents any slight changes in the relative position between the fixed end 201 and the cold light source, resulting in no change in light intensity. Therefore, it does not affect the image clarity during endoscopic examinations. This solves the technical problem of poor fixation strength between the beam guide 200 and the cold light source beam guide connector 100 in existing technologies.

[0039] In this embodiment, the shape of the beam guide insertion hole 110 can match the shape of the fixed end 201 of the beam guide 200. That is, the extension direction T (axial direction) of the beam guide insertion hole 110 can be parallel to the axial direction of the fixed end 201 of the beam guide 200. The diameter of the beam guide insertion hole 110 is larger than the diameter of the fixed end 201 of the beam guide 200, so as to facilitate the insertion of the fixed end 201 of the beam guide 200. It can also prevent the fixed end 201 of the beam guide 200 from being worn on its own outer periphery or the hole wall of the beam guide insertion hole 110 when it is inserted or removed, thereby improving reliability.

[0040] According to one embodiment of the present invention, a cold light source beam guide insertion device 100 includes an insertion device body 101, a first fixing unit 102, and a second fixing unit 103; a beam guide insertion hole 110 is disposed on the insertion device body 101; the first fixing unit 102 and the second fixing unit 103 are spaced apart on the insertion device body 101 along the extending direction T (axial direction) of the beam guide insertion hole 110, and the first fixing unit 102 and the second fixing unit 103 are used to fix the fixed end 201 of the beam guide 200 when the fixed end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110.

[0041] In specific implementation, the first fixing unit 102 and the second fixing unit 103 can fix the fixing end 201 of the beam guide 200 respectively. That is, the fixing end 201 of the beam guide 200 is fixed to the plug-in device body 101 through the first fixing unit 102 and the second fixing unit 103 respectively. Thus, there is a connection point between the first fixing unit 102 and the plug-in device body 101, and there is also a connection point between the second fixing unit 103 and the plug-in device body 101. The first fixing unit 102 and the second fixing unit 103 are fixed at different positions in the axial direction of the fixing end 201 of the beam guide 200 respectively, which ensures the firmness of the fixing end 201 of the beam guide 200 during use. That is, the connection between the fixing end 201 of the beam guide 200 and the plug-in device body 101 is reliable.

[0042] In this embodiment, the connector body 101 has a first end 1011 and a second end 1012 disposed opposite to each other along the extending direction T (axial direction) of the beam guide insertion hole 110; the beam guide insertion hole 110 passes through the first end 1011 and the second end 1012; the first end 1011 is used for inserting the fixed end 201 of the beam guide 200; the second end 1012 is used for docking with the cold light source; a first fixing unit 102 is disposed at the first end 1011 of the connector body 101, and a second fixing unit 103 is disposed at the second end 1012 of the connector body 101. The second end 1012 may be provided with a cold light source mounting hole 140 for mounting the cold light source, and the cold light source mounting hole 140 may be coaxially arranged with the beam guide insertion hole 110. In specific implementation, the cold light source can be installed in the cold light source mounting hole 140, and with the fixed end 201 of the beam guide 200 inserted into the beam guide insertion hole 110, the light from the cold light source can be transmitted to the beam guide 200.

[0043] In this embodiment, the first fixing unit 102 and the second fixing unit 103 work together to position the beam guide 200 axially and radially. Specifically, the first fixing unit 102 is disposed at the first end 1011, and the second fixing unit 103 is disposed at the second end 1012. This positions the fixed end 201 of the beam guide 200 into the insertion end of the beam guide insertion hole 110, preventing the suspended section 202 from shifting and altering the relative position of the beam guide and the cold light source, thus improving the clarity of the endoscopic imaging. Of course, in other embodiments, the first fixing unit 102 may also be disposed at the second end 1012, and the second fixing unit may also be disposed at the first end 1011; this application will not elaborate on these variations.

[0044] Furthermore, the distance between the first fixing unit 102 and the second fixing unit 103 is L1, and the insertion length of the fixed end 201 of the beam guide 200 into the beam guide insertion hole 101 is L2. L1 / L2 is greater than or equal to 2 / 3 and less than 1, specifically 2 / 3, 3 / 4, 4 / 5, or 5 / 6. When L1 / L2 is greater than 2 / 3 and less than 5 / 6, the fixing effect of the first fixing unit 102 and the second fixing unit 103 on the beam guide 200 is the best, which can better prevent the relative position of the beam guide and the cold light source from changing.

[0045] Furthermore, the first fixing unit 102 and the second fixing unit 103 can be rigid fixing elements or elastic fixing elements, preferably elastic fixing elements. Elastic fixing elements reduce the insertion and extraction force of the fixing end 201 of the beam guide 200 into or out of the beam guide insertion hole 110, making it easier for the user. Simultaneously, they absorb vibrations when the suspended section 202 of the beam guide wobbles. Optionally, the first fixing unit 102 and the second fixing unit 103 can be elastic fixing elements such as ball plungers, springs, O-rings, wire springs, crown springs, and hyperbolic cage springs. More preferably, the first fixing unit 102 is a ball plunger and the second fixing unit 103 is a crown spring. The following example of the first fixing unit 102 being a ball plunger and the second fixing unit being a crown spring does not imply that this solution can only use ball plungers and crown springs as fixing elements.

[0046] According to one embodiment of the present invention, the outer peripheral wall of the fixed end 201 of the beam guide 200 has a groove 2011; the plug-in device body 101 has at least one first mounting part 120, the first mounting part 120 communicates with the beam guide insertion hole 110, and the first mounting part 120 has a threaded section; the first fixing unit 102 includes at least one ball plunger, the ball plunger is located in the first mounting part 120 and is screwed to the threaded section, and the head of the ball plunger is used to extend into the groove 2011 when the fixed end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110, and abut against the groove wall of the groove 2011.

[0047] In practical implementation, the head (spherical) of the ball-head plunger acts as a latch. When the fixed end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110, the head of the ball-head plunger can extend into the slot 2011 to fix the fixed end 201 of the beam guide 200. At this time, the elastic component inside the ball-head plunger is in a compressed state. When the fixed end 201 of the beam guide 200 is not inserted into the beam guide insertion hole 110, since there is no fixed end 201 of the beam guide 200 inside the beam guide insertion hole 110, that is, the inside of the beam guide insertion hole 110 is empty, the head of the ball-head plunger extends into the beam guide insertion hole 110. At this time, the elastic component inside the ball-head plunger is in an uncompressed state. That is, the head of the ball-head plunger can reciprocate linearly along the radial direction of the beam guide 200. This solution achieves axial and radial fixation of the beam guide by setting a slot 2011 on the fixed end 201 of the beam guide 200, allowing the ball plunger to extend into the slot 2011 and the head of the ball plunger to abut against the slot 2011.

[0048] In this embodiment, the shape of the slot 2011 can be substantially matched with the shape of the ball plunger head; for example, the slot 2011 can be hemispherical.

[0049] According to one embodiment of the present invention, there may be multiple first mounting portions 120, which are arranged at intervals along the circumference of the beam guide insertion hole 110; there may also be multiple ball-head plungers, with one ball-head plunger corresponding to one first mounting portion 120.

[0050] In specific implementation, through the above-mentioned structural arrangement, multiple ball-head plungers are arranged circumferentially at intervals along the beam guide insertion hole 110. When the fixed end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110, the multiple ball-head plungers can circumferentially fix the fixed end 201 of the beam guide 200, further ensuring the firmness of the fixed end 201 of the beam guide 200 during use. That is, the connection between the fixed end 201 of the beam guide 200 and the plug-in device body 101 is reliable. Of course, a single ball plunger can also be used. When the fixed end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110, one side of the fixed end 201 of the beam guide 200 abuts against the ball plunger. At the same time, due to the abutting action of the ball plunger, the axis of the fixed end 201 of the beam guide 200 is offset, so that the side of the fixed end 201 of the beam guide 200 away from the ball plunger abuts against the side wall of the beam guide insertion hole 110, thereby fixing the fixed end 201 of the beam guide 200.

[0051] According to one embodiment of the present invention, the number of first mounting parts 120 is odd, for example, 3 or 5. Alternatively, the number of first mounting parts can be even, such as 2 or 4. Preferably, in this embodiment, the number of first mounting parts 120 is odd, for example, 3 first mounting parts and 3 ball-head plungers. The first mounting parts 120 are arranged in a triangular pattern along the radial direction of the beam guide insertion hole 110. This arrangement allows the fixed end 201 of the beam guide 200 to be more securely fixed within the beam guide insertion hole 110, while also reducing manufacturing costs.

[0052] According to one embodiment of the present invention, the beam guide insertion hole 110 may include a first insertion sub-hole and a second insertion sub-hole that are connected to each other; the first mounting part 120 is connected to the first insertion sub-hole; the head of the ball plunger is used to extend into the slot 2011 and abut against the groove wall of the slot 2011 when the fixed end 201 of the beam guide 200 is inserted into the first insertion sub-hole.

[0053] According to one embodiment of the present invention, the wall of the beam guide insertion hole 110 is provided with a second mounting portion 130, which surrounds the beam guide insertion hole 110; a second fixing unit 103 is located inside the second mounting portion 130 and connected to the wall of the second mounting portion 130. Specifically, the wall of the second insertion sub-hole is provided with a second mounting portion 130, which surrounds the second insertion sub-hole; the second fixing unit 103 is located inside the second mounting portion 130 and connected to the wall of the second mounting portion 130. According to one embodiment of the present invention, the second fixing unit 103 includes a crown spring, which is coaxially arranged with the second insertion sub-hole. The crown spring is used to sleeve the outer peripheral wall of the fixed end 201 of the beam guide 200 when the fixed end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110.

[0054] In practice, the crown spring can hold (clamp) the fixed end 201 of the beam guide 200, providing pre-tightening force to the fixed end 201 of the beam guide 200, further ensuring the firmness of the fixed end 201 of the beam guide 200 during use. That is, the connection between the fixed end 201 of the beam guide 200 and the plug-in device body 101 is reliable.

[0055] This application fixes the light guide beam to the light guide beam insertion hole 110 by simultaneously setting a first fixing unit 102 and a second fixing unit 103. The first fixing unit 102 and the second fixing unit 103 provide axial and radial fixation for the fixing end 201 of the light guide beam 200. Furthermore, the first fixing unit 102 is a ball-head plunger, and the second fixing unit 103 is a crown spring. In this design, the ball-head plunger primarily provides axial fixation for the fixing end 201 of the light guide beam 200, preventing it from being easily pulled out during use. It also provides some radial fixation, preventing the light guide beam from shaking to a certain extent. The crown spring is mainly used in the field of electrical connectors. The front end of the pin (female end) is connected to the hole end (male end) via the crown spring. In this field, the cable connected to the rear end of the pin is generally short, and usually, the cable is fixed to the housing by a fixing device. Therefore, the main function of the crown spring is to fix the pin to the hole end, preventing the pin from detaching from the hole end and ensuring electrical connection. In this application, a crown spring is disposed on the beam guide insertion hole 110 to fix the fixed end 201 of the beam guide 200, preventing slight changes in the relative position between the fixed end 201 of the beam guide 200 and the cold light source due to the shaking of the beam guide. Specifically, due to its elasticity, the crown spring mainly plays a radial fixing role for the fixed end 201 of the beam guide 200 in this application. When the connection end of the beam guide 200 and the endoscope shakes, the fixed end 201 of the beam guide 200 shakes in the insertion section of the beam guide insertion hole 110 with the first fixing unit 102 as the fulcrum, that is, with the ball plunger as the fulcrum. By utilizing the elasticity of the crown spring, the amount of movement of the fixed end 201 of the beam guide 200 within the beam guide insertion hole 110 is absorbed, preventing slight changes in the relative position between the cold light source and the beam guide. In addition, the crown spring also plays a certain role in axial fixation, cooperating with the first fixing unit 102, i.e., cooperating with the ball-head plunger, to prevent the fixed end 201 of the beam guide 200 from being easily pulled out during use. This application sets up a first fixing unit 102 and a second fixing unit 103, and the first fixing unit 102 and the second fixing unit 103 have different focuses in fixing the fixed end 201 of the beam guide 200; that is, the first fixing unit 102 focuses on axial positioning, while the second fixing unit 103 focuses on radial positioning. The cooperation of the first fixing unit 102 and the second fixing unit 103 ensures that the relative position of the beam guide and the cold light source does not change slightly, ensuring the clarity of the endoscopic imaging. Furthermore, this solution has a wide range of applications, effectively preventing slight changes in the relative position between the beam guide and the cold light source for both long and short beam guide applications.

[0056] According to one embodiment of the present invention, the cold light source beam guide insertion device 100 further includes a blocking unit 150 (or a door opening / closing mechanism). The blocking unit 150 is located inside the beam guide insertion hole 110 and is movably connected to the side wall of the beam guide insertion hole 110. When the fixed end 201 of the beam guide 200 is not inserted into the beam guide insertion hole 110, the blocking unit 150 closes the beam guide insertion hole 110, and / or, when the beam guide is located in the beam guide insertion hole 110, the blocking unit 150 opens the first insertion sub-hole. Specifically, the blocking unit 150 is located inside the first insertion sub-hole and is movably connected to the first insertion sub-hole; when the fixed end 201 of the beam guide 200 is outside the first insertion sub-hole, the blocking unit 150 can close the first insertion sub-hole, or when the fixed end 201 of the beam guide 200 is inside the first insertion sub-hole, the blocking unit 150 opens the first insertion sub-hole.

[0057] In specific implementation, when the fixed end 201 of the guide beam 200 is not inserted into the first insertion sub-hole, the sealing unit 150 is in the closed position to seal the first insertion sub-hole and prevent dust or light from the cold light source from passing out of the cold beam insertion hole; when the fixed end 201 of the guide beam 200 is inserted into the first insertion sub-hole, the sealing unit 150 is in the open position so that the fixed end 201 of the guide beam 200 can be inserted.

[0058] In this embodiment, the door opening and closing mechanism may include a rotating shaft, a torsion spring, and a baffle. The rotating shaft is rotatably connected to the insertion device body 101 along an axis perpendicular to the beam guide insertion hole 110. The torsion spring is sleeved on the rotating shaft and connects the baffle and the insertion device body 101 to close or open the first insertion sub-hole through the baffle. Specifically, when the fixed end 201 of the beam guide 200 is inserted into the beam guide insertion hole 110 along the first end 1011, the front end of the beam guide abuts against the baffle. As the fixed end 201 of the beam guide 200 continues to extend into the second end 1012, the front end of the beam guide drives the baffle to rotate, thereby opening the first insertion sub-hole. When the fixed end 201 of the beam guide 200 exits the beam guide insertion hole 110, that is, when the front end of the fixed end 201 of the beam guide 200 gradually separates from the baffle, the torsion spring drives the baffle to rotate, thereby closing the first insertion sub-hole.

[0059] According to one embodiment of the present invention, a sensor mounting hole is also provided at the bottom of the cold light source mounting hole 140. A sensor, such as a photoelectric sensor, can be installed in the sensor mounting hole to detect whether the fixed end 201 of the guide beam 200 is inserted into the guide beam insertion hole 110.

[0060] According to one embodiment of the present invention, the cold light source beam guide insertion device 100 of the present invention may further include a fixing unit for fixing the crown spring. The fixing unit may be a fastener. The fixing unit connects the crown spring and the insertion device body 101 and is used to fix the crown spring in the second mounting part 130.

[0061] According to one embodiment of the present invention, the first insertion sub-hole can be gradually narrowed from the first end 1011 to the second end 1012, and the fixed end 201 of the beam guide 200 plays a guiding role when inserted.

[0062] This utility model also provides an endoscope system, including an endoscope cold light source main unit. The endoscope cold light source main unit includes a cold light source main unit housing, a cold light source beam guide insertion device 100, and a fixed end 201 for the cold light source and the beam guide 200. The cold light source beam guide insertion device 100 is located inside and connected to the cold light source main unit housing, and has a beam guide insertion hole 110. The cold light source is connected to the cold light source beam guide insertion device 100 and is used to provide light to the fixed end 201 of the beam guide 200. The fixed end 201 of the beam guide 200 is used to extend into the beam guide insertion hole 110. The specific structure, working principle, and beneficial effects of the cold light source beam guide insertion device 100 are the same as those in the above embodiments, and will not be repeated here.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cold light source beam guide insertion device, characterized in that, The cold light source beam guide insertion device has a beam guide insertion hole (110). The cold light source beam guide insertion device includes a plurality of fixing units arranged along the axial direction of the beam guide insertion hole (110); The cold light source beam guide insertion device includes an insertion device body (101), a first fixing unit (102), and a second fixing unit (103). The beam guide insertion hole (110) is provided on the plug-in device body (101); The first fixing unit (102) and the second fixing unit (103) are arranged on the plug-in device body (101) at an axial distance along the beam guide insertion hole (110).

2. The cold light source beam guide insertion device according to claim 1, characterized in that, The diameter of the beam guide insertion hole (110) is larger than the diameter of the fixed end (201) of the beam guide (200); And / or, the distance between the first fixing unit (102) and the second fixing unit (103) is L1, the insertion length of the beam guide (200) into the beam guide insertion hole (110) is L2, and L1 / L2 is greater than or equal to 2 / 3 and less than 1.

3. The cold light source beam guide insertion device according to claim 2, characterized in that, The plug-in device body (101) has at least one first mounting portion (120) for mounting the first fixing unit (102), and the first mounting portion (120) communicates with the beam guide insertion hole (110).

4. The cold light source beam guide insertion device according to claim 3, characterized in that, There are multiple first mounting parts (120), and the multiple first mounting parts (120) are arranged at circumferential intervals along the beam guide insertion hole (110).

5. The cold light source beam guide insertion device according to claim 4, characterized in that, The number of the first mounting parts (120) is odd.

6. The cold light source beam guide insertion device according to claim 2, characterized in that, The wall of the beam guide insertion hole (110) is provided with a second mounting part (130) for mounting the second fixing unit (103), and the second mounting part (130) is arranged around the beam guide insertion hole (110).

7. The cold light source beam guide insertion device according to any one of claims 1-6, characterized in that, The first fixing unit (102) and the second fixing unit (103) are elastic fixing elements.

8. The cold light source beam guide insertion device according to claim 7, characterized in that, The first fixing unit (102) is a ball-head plunger; And / or, the second fixing unit (103) is a crown spring.

9. The cold light source beam guide insertion device according to any one of claims 1-6, characterized in that, It also includes a blocking unit (150), which is located inside the beam guide insertion hole (110) and is movably connected to the side wall of the beam guide insertion hole (110). When the fixed end (201) of the beam guide (200) is not inserted into the beam guide insertion hole (110), the blocking unit (150) closes the beam guide insertion hole (110), and / or, when the fixed end (201) of the beam guide (200) is located in the beam guide insertion hole (110), the blocking unit (150) opens the beam guide insertion hole (110).

10. An endoscope system, characterized in that, include: An endoscope cold light source host includes a cold light source host housing, a cold light source, a cold light source beam guide insertion device as described in any one of claims 1 to 9, and a beam guide (200). The cold light source beam guide insertion device is located inside the cold light source host housing and is connected to the cold light source host housing, and has a beam guide insertion hole (110). The cold light source is connected to the cold light source beam guide plug-in device and is used to provide a light source to the beam guide (200); The fixed end (201) of the beam guide (200) is used to insert into the beam guide insertion hole (110).

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