Endoscope adapter connector, handle and endoscope

Abstract

The present invention relates to an adapter connector, a handle and an endoscope of an endoscope, comprising a base and a docking portion, wherein a transition cavity is arranged in the base, and the distal end face of the transition cavity is used to be glued with the proximal end face of the instrument guide channel in the insertion portion of the endoscope, so as to realize the communication between the distal end of the transition cavity and the proximal end of the instrument guide channel in the insertion portion of the endoscope, and the distal end of the docking portion is used to extend into the matching channel of the insertion portion of the endoscope, so as to realize the gluing of the docking portion and the inner wall of the matching channel. After the docking portion extends into the matching channel of the insertion portion, the present invention can realize the relative position limitation of the adapter connector and the insertion portion, and then the proximal end port of the instrument guide channel on the insertion portion can be controlled under visual conditions to maintain coaxial communication with the distal end port of the transition cavity, and can realize the stable connection between the insertion portion and the adapter connector, simplify the processing technology, improve the convenience and efficiency of processing and assembly, and reduce the production cost of the endoscope.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an adapter connector, a handle and an endoscope. Background Art

[0002] An endoscope is a medical device used in modern minimally invasive surgery to observe the internal body cavity of the human body. It generally includes a handle and an insertion part. The insertion part is equipped with an instrument tube and a camera module pipeline. In actual operation, the traction wheel is driven to rotate by turning the lever on the handle to adjust the posture of the curved section of the insertion part, thereby adjusting the direction of the distal module to achieve functions such as fixed-point observation.

[0003] In the process of implementing the present invention, the applicant found that when assembling the handle and the insertion part, the traction rope and the camera module core on the traction rope insertion part need to be guided in an orderly manner in the handle, and at the same time, the instrument pipeline on the insertion part and the Y-shaped channel tube in the handle must be smoothly connected. For this reason, existing endoscope technologies, such as the system and equipment of an endoscope without a tube working channel disclosed in U.S. Patent Publication No. US20200359879A1, use an adapter in the handle to achieve a stable and orderly connection between the insertion part and the handle, but the adapter has a complex structure, which increases the production cost. Summary of the invention

[0004] The purpose of this application is to provide an adapter connector, a handle and an endoscope for an endoscope to solve the above-mentioned technical problems existing in the prior art, mainly including the following three aspects:

[0005] In a first aspect, the present application provides an adapter connector for an endoscope, comprising a base and a docking portion, wherein a transition cavity is arranged in the base, and the proximal end of the base is used to realize the connection between the adapter connector and the channel tube in the endoscope handle, so that the proximal end of the transition cavity is connected with the distal end of the channel tube, and the distal end face of the transition cavity is used to be glued to the proximal end face of the instrument guide channel in the endoscope insertion portion, so as to realize the connection between the distal end of the transition cavity and the proximal end of the instrument guide channel in the endoscope insertion portion, and the distal end of the docking portion is used to extend into the matching channel of the endoscope insertion portion, so as to realize the gluing of the docking portion and the inner wall of the matching channel, and the proximal end of the docking portion is connected to the base, and the matching channel is a cable guide channel and / or a traction rope guide channel on the endoscope insertion portion.

[0006] Furthermore, the size of the distal port of the transition cavity is the same as the size of the proximal port of the instrument guide channel.

[0007] Furthermore, a positioning unit is provided at the distal end of the docking portion, and the positioning unit is used to cooperate with the inner wall of the mating channel to limit the relative position of the insertion portion and the adapter connector, thereby achieving coaxial connection between the distal end of the transition cavity and the proximal end of the instrument guide channel.

[0008] Furthermore, the positioning unit is used for interference fit with the inner wall of the matching channel.

[0009] Furthermore, a first avoidance groove is provided at the distal end of the base, and the first avoidance groove is used to avoid a guide target in the matching channel.

[0010] Furthermore, the adapter connector also includes a clamping sub-component, the proximal end of which is connected to the distal inner wall of the transition cavity, and the distal end of the clamping sub-component is used to extend into the instrument guide channel and cooperate with the docking part to clamp the inner wall between the instrument guide channel and the matching channel.

[0011] A second aspect of the present application provides a handle of an endoscope, comprising a shell, wherein a channel tube and the above-mentioned adapter connector are arranged in the shell, and the distal end of the channel tube is detachably connected to the proximal end of the base.

[0012] Furthermore, a mounting piece is provided at the distal end of the shell, and the mounting piece is used to realize a detachable connection between the endoscope insertion portion and the shell, and the adapter connector is located between the mounting piece and the channel tube.

[0013] The third aspect of the present application provides an endoscope, including an insertion part and the above-mentioned handle, wherein the insertion part is provided with an instrument guide channel, a cable guide channel and a traction rope guide channel, the proximal end of the insertion part is connected to the distal end of the handle, and the instrument guide channel, the transition cavity and the channel tube are connected in sequence.

[0014] Furthermore, a second avoidance groove matching the docking portion is provided on the inner wall of the proximal end of the matching channel.

[0015] Compared with the prior art, the present invention has at least the following technical effects:

[0016] According to the present invention, after the docking portion extends into the matching channel of the insertion portion, the relative position of the adapter connector and the insertion portion can be limited, and then the proximal port of the instrument guide channel on the insertion portion can be controlled to maintain coaxial connection with the distal port of the transition cavity under visual conditions, and a stable connection between the insertion portion and the adapter connector can be achieved. There is no need to rotate and adjust the position of the docked adapter connector under non-visual conditions, which simplifies the processing technology, improves the convenience and efficiency of endoscope processing and assembly, and reduces the production cost of the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the adapter connector of the present invention;

[0019] Figure 2 is a second structural schematic diagram of the adapter connector of the present invention;

[0020] Figure 3 is a third structural schematic diagram of the adapter connector of the present invention;

[0021] Figure 4 is a fourth structural schematic diagram of the adapter connector of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection structure of the adapter connector, the inserting portion and the channel tube of the present invention;

[0023] Figure 6 is an exploded view of the adapter connector, the insert portion and the channel tube of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection structure between the adapter connector and the inserting part of the present invention;

[0025] Figure 8 It is a schematic structural diagram of the endoscope of the present invention.

[0026] In the figure,

[0027] 110. Base; 120. Docking portion; 130. Transition cavity; 140. First avoidance groove; 150. Positioning unit; 160. Clamping sub-component; 200. Insertion portion; 210. Instrument guide channel; 220. Cable guide channel; 230. Traction rope guide channel; 310. Shell; 320. Channel tube; 330. Mounting part. DETAILED DESCRIPTION

[0028] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] In addition, in the present invention, "proximal end" and "distal end" refer to the far and near positions of the structure relative to human operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; for the same component, "proximal end" and "distal end" are the relative positional relationship of the component, not absolute; therefore, it should be understood from the perspective of realizing the principles of the present invention, and should not deviate from the essence of the present invention.

[0033] Embodiment 1:

[0034] The present application embodiment provides an adapter connector for an endoscope, such as Figure 1~Figure 4 As shown, it includes a base 110 and a docking portion 120, and a transition cavity 130 is arranged in the base 110. The proximal end of the base 110 is used to realize the connection between the adapter connector and the channel tube 320 in the endoscope handle, so that the proximal end of the transition cavity 130 is connected with the distal end of the channel tube 320, and the distal end face of the transition cavity 130 is used to be glued with the proximal end face of the instrument guide channel 210 in the endoscope insertion portion 200 to realize the connection between the distal end of the transition cavity 130 and the proximal end of the instrument guide channel 210 in the endoscope insertion portion 200, and the distal end of the docking portion 120 is used to extend into the matching channel of the endoscope insertion portion 200 to realize the gluing of the docking portion 120 and the inner wall of the matching channel, and the proximal end of the docking portion 120 is connected to the base 110, and the matching channel is the cable guide channel 220 on the endoscope insertion portion 200.

[0035] When assembling the handle and the insertion part 200, it is necessary to guide the traction rope and the camera module tube core on the insertion part 200 in an orderly manner in the handle, and at the same time, it is necessary to ensure that the instrument pipeline on the insertion part 200 is stably connected with the Y-channel tube in the handle. For this purpose, existing endoscope technologies, such as the system and equipment for an endoscope without a tube working channel disclosed in U.S. Patent Publication No. US20200359879A1, use an adapter in the handle to achieve a stable and orderly connection between the insertion part 200 and the handle, but the adapter has a complex structure. After the insertion part 200, the adapter and the Y-channel tube are docked, it is necessary to rotate and adjust the position of the adapter so that the camera module cable and traction rope on the insertion part 200 correspond to the opening on the adapter. At the same time, the instrument tube channel on the insertion part 200 must be stably connected with the Y-channel tube in the absence of a field of view, and then the traction rope and the camera module cable must be led out in an orderly manner from the corresponding openings, respectively, and the adapter The front-end structure of the device itself imposes certain constraints on the pulling rope and the cable passing through the opening on the adapter. The above limitations not only complicate the assembly process, but also increase the manufacturing cost. In particular, for disposable endoscopes, it is difficult to meet the low-cost requirements of disposable endoscopes. In the present embodiment, the base 110 is first connected to the channel tube 320 so that the transition cavity 130 and the channel tube 320 are docked and connected, and then the docking portion 120 and the matching channel at the proximal end of the insertion portion 200 are matched together to achieve rapid and accurate alignment between the insertion portion 200 and the adapter connector. After the docking portion 120 extends into the matching channel of the insertion portion 200, the relative position of the adapter connector and the insertion portion 200 can be defined. Subsequently, the proximal port of the instrument guide channel 210 on the insertion portion 200 can be controlled under visual conditions to maintain coaxial communication with the distal port of the transition cavity 130. At this time, the docking portion 120 just abuts against the inner wall of the matching channel. Figure 5~Figure 7As shown, by gluing the docking portion 120 and the abutting inner wall of the matching channel, and gluing the distal end face of the transition cavity 130 and the proximal end face of the instrument guide channel 210, a stable connection between the insertion portion 200 and the adapter connector can be achieved, and a stable connection between the instrument guide channel 210 and the transition cavity 130 can be achieved. At the same time, the adapter connector is no longer required to be rotated and adjusted in position under no field of view, thereby improving the convenience and efficiency of endoscope processing and assembly, and the adapter connector itself has a simple structure and is easy to manufacture and process, which further reduces the production cost of the endoscope.

[0036] Specifically, in order to ensure seamless communication between the instrument guide channel 210 and the transition channel 130 , the size of the distal port of the transition channel 130 may be set to be the same as the size of the proximal port of the instrument guide channel 210 .

[0037] Specifically, in order to further improve the convenience and accuracy of installation between the insertion portion 200 and the adapter connector, a positioning unit 150 may be provided at the distal end of the docking portion 120. Figure 2 , Figure 3 and Figure 6 As shown, the positioning unit 150 is used to cooperate with the inner wall of the matching channel to limit the relative position of the insertion part 200 and the adapter connector, so as to realize the coaxial connection between the distal end of the transition cavity 130 and the proximal end of the instrument guide channel 210; in actual use, when the distal end of the docking part 120 extends into the matching channel, the positioning unit 150 enters the matching channel synchronously, and the gap between the positioning unit 150 and the inner wall of the matching channel is small, and the mutual cooperation between the two can prevent the relative circumferential rotation between the insertion part 200 and the adapter connector, thereby omitting the adjustment action of the coaxial connection between the proximal port of the instrument guide channel 210 and the distal port of the transition cavity 130, and realizing the coaxial alignment between the proximal port of the instrument guide channel 210 and the distal port of the transition cavity 130 during the visual docking process between the docking part 120 and the matching channel, further simplifying the assembly process between the insertion part 200 and the adapter connector and reducing the production cost.

[0038] Specifically, the positioning unit 150 is used for interference fit with the inner wall of the matching channel. Since the outer peripheral wall of the positioning unit 150 can be interference fit with the inner wall of the matching channel, after the positioning unit 150 enters the matching channel and is in place, the relative position of the insertion part 200 and the adapter connector is fixed by interference fit, preventing the two from being separated during subsequent use and transportation, thereby improving the stability of the device. In addition, in order to reduce the influence of the positioning unit 150 on the guide target in the matching channel and reduce the occupation of the internal space of the matching channel by the positioning unit 150, the wall thickness of the positioning unit 150 can be designed to be as thin as possible, preferably 0.1~2mm. The wall thickness of the positioning unit 150 is thinner than the wall thickness of the matching channel. Therefore, when an interference fit occurs, the deformation caused by the interference fit occurs first on the positioning unit 150. Preferably, a notch can be provided on the positioning unit 150 so that the deformation of the positioning unit 150 during the interference fit is mainly squeezed toward the notch, so as to absorb the deformation of the positioning unit 150 during the interference fit, ensure the smoothness of the inner wall of the positioning unit 150, and release the deformation of the interference fit in an orderly manner, thereby improving the structural stability and safety of use of the insertion part 200 and the adapter connector.

[0039] Specifically, in order to avoid the adapter connector from obstructing the guiding installation of the traction rope and the camera module cable, a first avoidance groove 140 can be provided at the distal end of the base 110, and the first avoidance groove 140 is used to avoid the guiding target in the matching channel; it should be noted that the guiding target in the traction rope guide channel 230 is the traction rope, and the guiding target in the cable guide channel 220 is the camera module cable.

[0040] When the matching channel is a cable guide channel, the cable guide channel is generally designed as a special-shaped structure, and the positioning unit 150 can also be set to a matching special-shaped structure. Therefore, under the interference fit of the inner wall of the special-shaped channel, the cable guide channel and the positioning unit 150 are limited to prevent circumferential rotation, further ensuring the connection stability and docking convenience between the insertion part 200 and the adapter connector, improving the assembly and processing efficiency of the endoscope, and reducing the processing cost; and when the matching channel is a traction rope guide channel 230, generally two traction rope guide channels 230 are arranged on the insertion part 200, and correspondingly, two docking parts 120 are arranged on the base 110. When the positioning units 150 on the two docking parts 120 extend into the traction rope guide channel 230, relative circumferential rotation is limited between the insertion part 200 and the adapter connector, so that the instrument guide channel 210 and the transition cavity 130 are stably docked and connected.

[0041] In some embodiments, the cable guide channel 220 and the traction rope guide channel 230 can also be set as matching channels at the same time.

[0042] In some embodiments, in order to further increase the connection stability between the adapter and the insert 200, a clamping sub-component 160 may be provided on the adapter. Figure 4 As shown, the proximal end of the clamping sub-component 160 is connected to the distal inner wall of the transition cavity 130, and the distal end of the clamping sub-component 160 is used to extend into the instrument guide channel 210 and cooperate with the docking portion 120 to clamp the inner wall between the instrument guide channel 210 and the matching channel; during the installation process, when the docking portion 120 is extended into the matching channel, the clamping sub-component 160 simultaneously enters the instrument guide channel 210, and under the cooperation of the positioning unit 150 and the inner wall of the matching channel, the clamping sub-component 160 simultaneously engages with the instrument guide channel 210. The inner wall of the guide channel 210 fits well, thereby achieving the cooperation between the clamping sub-component 160 and the docking part 120, or the cooperation between the clamping sub-component 160, the docking part 120 and the positioning unit 150, or the cooperation between the clamping sub-component 160 and the positioning unit 150, to clamp and fix the inner wall between the instrument guide channel 210 and the matching channel, thereby increasing the connection stability between the adapter and the insertion part 200; further, glue can be applied to the inner wall of the clamping sub-component 160 close to the instrument guide channel 210 to enhance the connection.

[0043] Embodiment 2:

[0044] The present application embodiment provides a handle of an endoscope, such as Figure 8 As shown, it includes a shell 310, in which a channel tube 320 and the above-mentioned adapter connector are arranged, and the distal end of the channel tube 320 is detachably connected to the proximal end of the base 110.

[0045] The detachable connection may be a mortise and tenon connection, a snap connection, an interference fit, a bolt connection, etc., which are not specifically limited here; in some embodiments, the adapter connector may also be integrated with the channel tube 320.

[0046] Specifically, a mounting member 330 is provided at the distal end of the housing 310, and the mounting member 330 is used to realize a detachable connection between the endoscope insertion part 200 and the housing 310, and the adapter connector is located between the mounting member 330 and the channel tube 320. When assembling and processing the endoscope, the adapter connector can be docked with the channel tube 320 first, and the mounting member 330 can be fixed at the proximal end of the insertion part 200, and then the insertion part 200 can be docked with the adapter connector. After docking in place, the mounting member 330, the channel tube 320 and the housing 310 are fixedly connected respectively, and the adapter connector completes the adapter connection and fixation of the insertion part 200 and the channel tube 320, and the processing is convenient.

[0047] Embodiment 3:

[0048] The present application embodiment provides an endoscope, such as Figure 5~Figure 8As shown, it includes an insertion part 200 and the handle in Example 2, and the insertion part 200 is provided with an instrument guide channel 210, a cable guide channel 220 and a traction rope guide channel 230. The proximal end of the insertion part 200 is connected to the distal end of the handle, and the instrument guide channel 210, the transition cavity 130 and the channel tube 320 are connected in sequence.

[0049] Specifically, in order to reduce the occupation of the internal space of the matching channel by the docking portion 120 , a second avoidance groove matching the docking portion 120 may be provided on the inner wall of the proximal end of the matching channel.

[0050] In some embodiments, when a positioning unit is provided on the docking portion 120 , the second avoidance groove is used to avoid the positioning unit 150 and the docking portion 120 at the same time.

[0051] Specifically, in order to facilitate the positioning unit 150 to extend into the matching channel quickly and accurately, the proximal end of the matching channel can be set to a wide-mouth structure.

[0052] It should also be noted that the endoscope in the embodiments of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not specifically limit the type of endoscope.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adapter connector for an endoscope, characterized in that: The invention comprises a base (110) and a docking portion (120), wherein a transition cavity (130) is arranged in the base (110), and the proximal end of the base (110) is used to realize the connection between the adapter and the channel tube (320) in the endoscope handle, so that the proximal end of the transition cavity (130) is communicated with the distal end of the channel tube (320), and the distal end surface of the transition cavity (130) is used to be glued to the proximal end surface of the instrument guide channel (210) in the endoscope insertion portion (200), so as to realize the transition cavity ( The distal end of the docking portion (120) is connected to the proximal end of the instrument guide channel (210) in the endoscope insertion portion (200), and the distal end of the docking portion (120) is used to extend into the matching channel of the endoscope insertion portion (200) to achieve gluing of the docking portion (120) and the inner wall of the matching channel. The proximal end of the docking portion (120) is connected to the base (110), and the matching channel is a cable guide channel (220) and / or a traction rope guide channel (230) on the endoscope insertion portion (200).

2. The adapter connector according to claim 1, characterized in that: The size of the distal port of the transition cavity (130) is the same as the size of the proximal port of the instrument guide channel (210).

3. The adapter connector according to claim 1, characterized in that: A positioning unit (150) is provided at the distal end of the docking portion (120), and the positioning unit (150) is used to cooperate with the inner wall of the matching channel to limit the relative position of the insertion portion (200) and the adapter connector, thereby achieving coaxial communication between the distal end of the transition cavity (130) and the proximal end of the instrument guide channel (210).

4. The adapter connector according to claim 3, characterized in that: The positioning unit (150) is used for interference fit with the inner wall of the matching channel.

5. The adapter connector according to any one of claims 1 to 4, characterized in that: A first avoidance groove (140) is provided at the distal end of the base (110), and the first avoidance groove (140) is used to avoid a guide target in the matching channel.

6. The adapter connector according to claim 5, characterized in that: The adapter connector also includes a clamping sub-component (160), the proximal end of which is connected to the distal inner wall of the transition cavity (130), and the distal end of the clamping sub-component (160) is used to extend into the instrument guide channel (210) and cooperate with the docking portion (120) to clamp the inner wall between the instrument guide channel (210) and the matching channel.

7. A handle for an endoscope, characterized in that: The invention comprises a shell (310), wherein a channel tube (320) and the adapter connector according to any one of claims 1 to 6 are arranged in the shell (310), and the distal end of the channel tube (320) is detachably connected to the proximal end of the base (110).

8. The handle according to claim 7, characterized in that A mounting member (330) is provided at the distal end of the shell (310), and the mounting member (330) is used to achieve a detachable connection between the endoscope insertion portion (200) and the shell (310), and the adapter connection member is located between the mounting member (330) and the channel tube (320).

9. An endoscope, characterized in that: It comprises an insertion part (200) and a handle as claimed in claim 7 or 8, wherein the insertion part (200) is provided with an instrument guide channel (210), a cable guide channel (220) and a traction rope guide channel (230), the proximal end of the insertion part (200) is connected to the distal end of the handle, and the instrument guide channel (210), the transition cavity (130) and the channel tube (320) are connected in sequence.

10. The endoscope according to claim 9, characterized in that A second avoidance groove matching the docking portion (120) is provided on the inner wall at the proximal end of the matching channel.

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