CN116138712A - Adaptive connecting piece of endoscope, handle and endoscope - Google Patents

Abstract

The invention relates to an adaptive connector of an endoscope, a handle and the endoscope, which comprise a base part and a butting part, wherein a transition cavity is arranged in the base part, the distal end face of the transition cavity is used for being glued with the proximal end face of an instrument guide channel in an endoscope insertion part 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 endoscope insertion part, and the distal end of the butting part is used for extending into a matching channel of the endoscope insertion part so as to realize the gluing of the butting part and the inner wall of the matching channel. After the butt joint part extends into the matching channel of the insertion part, the invention can realize the relative position limitation of the adapting connecting piece and the insertion part, then can control the proximal end port of the instrument guide channel on the insertion part to keep coaxial communication with the distal end port of the transition cavity under the visual condition, can realize the stable connection between the insertion part and the adapting connecting piece, simplifies the processing technology, improves the processing and assembling convenience and the processing efficiency, and reduces the production cost of the endoscope.

Description

Adaptive connecting piece of endoscope, handle and endoscope

Technical Field

The invention relates to the technical field of endoscopes, in particular to an adaptive connecting piece of an endoscope, a handle and the endoscope.

Background

The endoscope is a medical instrument for observing the internal cavity of a human body in a modern minimally invasive surgery, and generally comprises a handle and an insertion part, wherein an instrument tube and a camera module pipeline are arranged in the insertion part, and in actual operation, a pulling wheel is driven to rotate by pulling a pulling rod on the handle so as to regulate the posture of a bending section of the insertion part, thereby adjusting the orientation of a far-end module and realizing the functions of fixed point observation and the like.

In the process of realizing the invention, the applicant finds that when the handle and the insertion part are assembled, the pulling rope and the tube core of the camera module on the pulling rope insertion part need to be orderly guided in the handle, and meanwhile, the instrument pipeline on the insertion part is ensured to be stably communicated with the Y-shaped channel pipe in the handle, therefore, the prior endoscope technology, such as a system and equipment of an endoscope tubeless working channel disclosed in U.S. patent publication No. 20200359879A1, adopts an adapter in the handle to realize stable and orderly connection between the insertion part and the handle, but the adapter has a complex structure and increases the production cost.

Disclosure of Invention

The purpose of this application is to provide an adaptation connecting piece, handle and endoscope of endoscope, solves the above-mentioned technical problem that exists among the prior art, mainly includes following three aspects:

the first aspect of the application provides an adaptation connecting piece of endoscope, including basal portion and butt joint portion, be provided with the transition chamber way in the basal portion, the proximal end of basal portion is used for realizing the connection of channel pipe in adaptation connecting piece and the endoscope handle, makes the proximal end of transition chamber way and the distal end intercommunication of channel pipe, the distal end terminal surface of transition chamber way is used for gluing with the proximal end terminal surface of instrument guide channel in the endoscope insertion portion to realize the distal end of transition chamber way and the proximal end intercommunication of instrument guide channel in the endoscope insertion portion, the distal end of butt joint portion is used for stretching into the cooperation passageway of endoscope insertion portion, in order to realize the cementing of butt joint portion and cooperation passageway inner wall, the proximal end of butt joint portion is connected with the basal portion, the cooperation passageway is cable guide channel and/or haulage rope guide channel on the endoscope insertion portion.

Further, the transition channel has a distal port size that is the same as a proximal port size of the instrument guide channel.

Further, the distal end of the abutting portion is provided with a positioning unit, and the positioning unit is used for being matched with the inner wall of the matching channel so as to limit the relative positions of the inserting portion and the adapting connecting piece, and the distal end of the transition cavity channel and the proximal end of the fin line guide channel are coaxially communicated.

Further, the positioning unit is used for being in interference fit with the inner wall of the fit channel.

Further, a first avoidance groove is formed in the distal end of the base portion, and the first avoidance groove is used for avoiding a guide target in the matching channel.

Further, the adapting connecting piece further comprises a clamping sub-piece, wherein the proximal end of the clamping sub-piece is connected with the inner wall of the distal end of the transition cavity, and the distal end of the clamping sub-piece is used for extending into the instrument guide channel and is matched with the abutting part so as to clamp the inner wall between the instrument guide channel and the matching channel.

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

Further, the distal end of the housing is provided with a mounting for enabling a detachable connection of the endoscope insertion section and the housing, the adapter connection being located between the mounting and the channel tube.

The third aspect of the application provides an endoscope, including insertion portion and foretell handle, be provided with apparatus guide passageway, cable guide passageway and haulage rope guide passageway on the insertion portion, the proximal end of insertion portion is connected with the distal end of handle, apparatus guide passageway, transition chamber way and passageway pipe communicate in proper order.

Further, a second avoidance groove matched with the abutting part is formed in the inner wall of the proximal end of the matching channel.

Compared with the prior art, the invention has at least the following technical effects:

according to the invention, after the butt joint part stretches into the matching channel of the insertion part, the relative position limitation of the adapting connecting piece and the insertion part can be realized, then the proximal port of the instrument guide channel on the insertion part can be controlled to be coaxially communicated with the distal port of the transition cavity under the visual condition, the stable connection between the insertion part and the adapting connecting piece can be realized, the position rotation adjustment of the butt joint adapting connecting piece is not required under the condition of no visual field, the processing technology is simplified, the processing and assembling convenience and the processing efficiency of the endoscope are improved, and the production cost of the endoscope is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the embodiments of the present invention or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the adaptor of the present invention;

FIG. 2 is a schematic view of a second construction of the adaptor of the present invention;

FIG. 3 is a schematic view of a third construction of the adaptor of the present invention;

FIG. 4 is a fourth schematic structural view of the adaptor of the present invention;

FIG. 5 is a schematic view of the connection structure of the adaptor, the insertion part and the channel tube of the present invention;

FIG. 6 is an exploded view of the adaptor, insert and channel tube of the present invention;

FIG. 7 is a schematic view of the connection structure of the adaptor connector and the insertion portion of the present invention;

FIG. 8 is a schematic view of the structure of an endoscope of the present invention;

in the drawing the view of the figure,

110. a base; 120. a butt joint part; 130. a transition channel; 140. a first avoidance groove; 150. a positioning unit; 160. clamping the sub-component; 200. an insertion section; 210. an instrument guide channel; 220. a cable guide channel; 230. a traction rope guide channel; 310. a housing; 320. a channel tube; 330. and a mounting member.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the invention. The elements and arrangements described in the following specific examples are presented for purposes of brevity and are provided only as examples and are not intended to limit the invention.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

In addition, in the invention, the 'near end' and the 'far end' are far and near positions of the structure relative to human body operation under the use environment, so that the description of the position relationship among the components is convenient, and meanwhile, the understanding is convenient; for the same component, "proximal" and "distal" are relative positional relationships of the component, not absolute; accordingly, it should be understood from the perspective of implementing the principles of the present invention without departing from the spirit of the invention.

Example 1:

the embodiment of the application provides an adapter connector of an endoscope, as shown in fig. 1-4, including a base 110 and a docking portion 120, a transition channel 130 is disposed in the base 110, a proximal end of the base 110 is used for implementing connection between the adapter connector and a channel tube 320 in an endoscope handle, so that a proximal end of the transition channel 130 is communicated with a distal end of the channel tube 320, a distal end surface of the transition channel 130 is used for being glued with a proximal end surface of an instrument guide channel 210 in an endoscope insertion portion 200, so as to implement communication between a distal end of the transition channel 130 and a proximal end of the instrument guide channel 210 in the endoscope insertion portion 200, a distal end of the docking portion 120 is used for extending into a mating channel of the endoscope insertion portion 200, so as to implement gluing between the docking portion 120 and an inner wall of the mating channel, a proximal end of the docking portion 120 is connected with the base 110, and the mating channel is a cable guide channel 220 on the endoscope insertion portion 200.

When the handle and the insertion part 200 are assembled, the haulage rope and the tube core of the camera module on the insertion part 200 need to be orderly guided in the handle, and meanwhile, the instrument tube on the insertion part 200 is ensured to be stably communicated with the Y-shaped channel tube in the handle, therefore, the prior endoscope technology, such as a system and equipment of an endoscope tubeless working channel disclosed in U.S. patent publication No. 20200359879A1, adopts an adapter in the handle to realize stable orderly connection between the insertion part 200 and the handle, but the adapter has a complex structure, the positions of the adapter need to be adjusted by rotating after the insertion part 200, the adapter and the Y-shaped channel tube are butted, the camera module cable and the haulage rope on the insertion part 200 are correspondingly provided with the opening on the adapter, and meanwhile, the instrument tube channel on the insertion part 200 is ensured to be stably communicated with the Y-shaped channel tube under the condition of no view, and then the haulage rope and the camera module cable are respectively orderly led out from the corresponding opening, and the front end structure of the adapter needs to lead out the haulage rope and the cable from the opening on the adapter to be restrained, so that the haulage rope and the cable is difficult to be assembled once, thereby the manufacturing cost is low, and the manufacturing cost is difficult to meet various requirements; in this embodiment, the base 110 is connected to the channel tube 320, so that the transition channel 130 is in butt-joint communication with the channel tube 320, then the butt-joint portion 120 is matched with the matching channel at the proximal end of the insertion portion 200, so as to achieve quick and accurate alignment between the insertion portion 200 and the adaptor connector, after the butt-joint portion 120 extends into the matching channel of the insertion portion 200, the relative positions of the adaptor connector and the insertion portion 200 can be limited, then the proximal port of the instrument guide channel 210 on the insertion portion 200 can be controlled to be coaxially communicated with the distal port of the transition channel 130 under a visual condition, at this time, the butt-joint portion 120 is just abutted against the inner wall of the matching channel, as shown in fig. 5 to 7, then the butt-joint portion 120 is glued to the abutting inner wall of the matching channel, the distal end face of the transition channel 130 is glued to the proximal end face of the instrument guide channel 210, so as to achieve stable connection between the insertion portion 200 and the adaptor connector, and stable communication between the instrument guide channel 210 and the transition channel 130, and further, the position of the adaptor connector can be adjusted under a non-visual condition, and the manufacturing cost of the adaptor connector can be further reduced, and the manufacturing cost of the endoscope is further reduced.

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

Specifically, to further improve the installation convenience and the installation accuracy between the insertion portion 200 and the adapting connector, a positioning unit 150 may be disposed at the distal end of the docking portion 120, as shown in fig. 2, 3 and 6, where the positioning unit 150 is configured to cooperate with the inner wall of the mating channel, so as to limit the relative positions of the insertion portion 200 and the adapting connector, and realize coaxial communication between the distal end of the transition channel 130 and the proximal end of the instrument guide channel 210; in the practical use process, when the distal end of the docking portion 120 extends into the mating channel, the positioning unit 150 synchronously enters into the mating channel, the gap between the positioning unit 150 and the inner wall of the mating channel is small, and the two mutually cooperate to prevent relative circumferential rotation between the insertion portion 200 and the mating connector, so that the adjustment action of coaxial communication between the proximal end port of the instrument guide channel 210 and the distal end port of the transition channel 130 can be omitted, and the coaxial alignment between the proximal end port of the instrument guide channel 210 and the distal end port of the transition channel 130 can be realized in the visual docking process of the docking portion 120 and the mating channel, thereby further simplifying the assembly process between the insertion portion 200 and the mating connector and reducing the production cost.

Specifically, the positioning unit 150 is configured to be in interference fit with the inner wall of the mating channel. Because the outer peripheral wall of the positioning unit 150 can be in interference fit with the inner wall of the fit channel, after the positioning unit 150 enters the fit channel, the relative positions of the insertion part 200 and the fit connection piece are fixed through interference fit, so that the insertion part and the fit connection piece are prevented from being separated in the subsequent use and transportation processes, and the use stability of equipment is improved.

Specifically, to avoid the obstruction of the adapting connector to the guiding installation of the haulage rope and the camera module cable, a first avoidance groove 140 may be provided at the distal end of the base 110, where the first avoidance groove 140 is used to avoid the guiding target in the matching channel; it should be noted that, the guiding object in the haulage cable guiding channel 230 is a haulage cable, and the guiding object in the cable guiding channel 220 is a camera module cable.

The matching channel is a cable guide channel, and the cable guide channel is generally designed into a special-shaped structure, so that the positioning unit 150 can be also set into a matched special-shaped structure, and therefore, under the interference fit of the inner wall of the special-shaped channel, the cable guide channel and the positioning unit 150 cannot rotate circumferentially, the connection stability and the butt joint convenience of the insertion part 200 and the adapting connector are further ensured, the assembly and processing efficiency of the endoscope is improved, and the processing cost is reduced; when the mating channel is the traction rope guiding channel 230, two traction rope guiding channels 230 are generally provided on the insertion portion 200, correspondingly, two docking portions 120 are provided on the base portion 110, and the positioning units 150 on the two docking portions 120 are limited to rotate circumferentially relative to each other between the insertion portion 200 and the adapting connector in the process of extending into the traction rope guiding channel 230, so that the instrument guiding channel 210 and the transition cavity 130 are in stable docking communication.

In some embodiments, the cable guide channel 220 and the leash guide channel 230 may also be provided as mating channels at the same time.

In some embodiments, to further increase the connection stability between the adaptor connector and the insertion portion 200, a clamping sub-member 160 may be disposed on the adaptor connector, as shown in fig. 4, wherein a proximal end of the clamping sub-member 160 is connected to a distal inner wall of the transition channel 130, and a distal end of the clamping sub-member 160 is configured 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 cooperating channel; in the installation process, when the abutting part 120 stretches into the matching channel, the clamping sub-piece 160 synchronously enters into the instrument guide channel 210, and under the matching of the positioning unit 150 and the inner wall of the matching channel, the clamping sub-piece 160 is simultaneously attached to the inner wall of the instrument guide channel 210, so that the matching of the clamping sub-piece 160 and the abutting part 120, the matching of the clamping sub-piece 160, the abutting part 120 and the positioning unit 150, or the matching of the clamping sub-piece 160 and the positioning unit 150 can be realized, the inner wall between the instrument guide channel 210 and the matching channel is clamped and fixed, and the connection stability between the adapting connector and the insertion part 200 is improved; further, the inner wall of the clamping sub-member 160 adjacent the instrument guide channel 210 may also be glued to enhance the connection.

Example 2:

an embodiment of the present application provides a handle of an endoscope, as shown in fig. 8, including a housing 310, in which a channel tube 320 and the above-mentioned adaptor connector are disposed in the housing 310, and a distal end of the channel tube 320 is detachably connected to a proximal end of the base 110.

The removable connection may be a dovetail, a snap fit, an interference fit, a bolted connection, etc., without specific limitation; in some embodiments, the adaptor connection may also be integrally provided with the channel tube 320.

Specifically, the distal end of the housing 310 is provided with a mounting member 330, the mounting member 330 being adapted to effect a detachable connection of the endoscope insertion portion 200 and the housing 310, the adapter connection being located between the mounting member 330 and the channel tube 320. When the endoscope is assembled and processed, the adapting connector and the channel tube 320 can be butted first, the mounting piece 330 is fixed at the proximal end of the insertion part 200, then the insertion part 200 is butted with the adapting connector, after the adapting connector is butted in place, the mounting piece 330, the channel tube 320 and the shell 310 are respectively and fixedly connected, so that the adapting connection and fixation of the adapting connector to the insertion part 200 and the channel tube 320 are completed, and the processing is convenient.

Example 3:

the embodiment of the application provides an endoscope, as shown in fig. 5 to 8, including an insertion portion 200 and a handle in embodiment 2, wherein an instrument guide channel 210, a cable guide channel 220 and a haulage cable guide channel 230 are disposed on the insertion portion 200, a proximal end of the insertion portion 200 is connected with a distal end of the handle, and the instrument guide channel 210, the transition channel 130 and the channel tube 320 are sequentially communicated.

Specifically, to reduce the occupation of the internal space of the mating channel by the docking portion 120, a second avoidance groove matched with the docking portion 120 may be provided on the proximal inner wall of the mating channel.

In some embodiments, when the docking portion 120 is configured as a positioning unit, the second avoidance groove is configured to avoid the positioning unit 150 and the docking portion 120 at the same time.

Specifically, to facilitate the positioning unit 150 to quickly and accurately extend into the mating channel, the proximal end of the mating channel may be configured in a wide-mouth configuration.

It should be further noted that the endoscope in the embodiments of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a enteroscope, an otoscope, a nasoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc., and the types of the endoscope are not particularly limited in the embodiments of the present application.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. An adapting connector of an endoscope, comprising a base (110) and a butt joint part (120), wherein a transition cavity (130) is arranged in the base (110), the proximal end of the base (110) is used for realizing connection of the adapting connector and a channel tube (320) in an endoscope handle, the proximal end of the transition cavity (130) is communicated with the distal end of the channel tube (320), the distal end surface of the transition cavity (130) is used for being glued with the proximal end surface of an instrument guide channel (210) in an endoscope insertion part (200) so as to realize communication between the distal end of the transition cavity (130) and the proximal end of the instrument guide channel (210) in the endoscope insertion part (200), the distal end of the butt joint part (120) is used for extending into a matching channel of the endoscope insertion part (200) so as to realize gluing of the butt joint part (120) and the inner wall of the matching channel, the proximal end of the butt joint part (120) is connected with the base (110), and the matching channel is a cable guide channel (220) and/or a haulage cable guide channel (230) on the endoscope insertion part (200).

2. The adapter of claim 1 wherein the distal port size of the transition lumen (130) is the same as the proximal port size of the instrument guide channel (210).

3. The fitting connection according to claim 1, wherein the distal end of the docking portion (120) is provided with a positioning unit (150), the positioning unit (150) being configured to cooperate with an inner wall of the mating channel to limit the relative positions of the insertion portion (200) and the fitting connection, such that the distal end of the transition channel (130) and the proximal end of the fin-wire guide channel are coaxially connected.

4. A fitting connection according to claim 3, wherein the positioning unit (150) is adapted for an interference fit with the inner wall of the mating channel.

5. The adapter according to any of claims 1 to 4, wherein the distal end of the base portion (110) is provided with a first avoidance groove (140), the first avoidance groove (140) being adapted to avoid a guiding object in the mating channel.

6. The adapter according to claim 5, further comprising a clamping sub-member (160), wherein a proximal end of the clamping sub-member (160) is connected to a distal inner wall of the transition channel (130), and wherein a distal end of the clamping sub-member (160) is adapted to extend into the instrument guide channel (210) and cooperate with the docking portion (120) to effect clamping of the inner wall between the instrument guide channel (210) and the mating channel.

7. A handle for an endoscope, comprising a housing (310), a channel tube (320) and an adapter connector according to any one of claims 1-6 being provided in the housing (310), the distal end of the channel tube (320) being detachably connected to the proximal end of the base (110).

8. The handle according to claim 7, wherein the distal end of the housing (310) is provided with a mounting member (330), the mounting member (330) being adapted to effect a detachable connection of the endoscope insertion portion (200) and the housing (310), the adapter connection being located between the mounting member (330) and the channel tube (320).

9. An endoscope, characterized by comprising an insertion part (200) and the handle according to claim 7 or 8, wherein an instrument guide channel (210), a cable guide channel (220) and a hauling cable guide channel (230) are arranged on the insertion part (200), the proximal end of the insertion part (200) is connected with the distal end of the handle, and the instrument guide channel (210), the transition cavity channel (130) and the channel tube (320) are sequentially communicated.

10. The endoscope of claim 9, wherein a second relief groove is provided on the proximal inner wall of the mating channel that mates with the docking portion (120).

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