CN115969294A - Disposable segment of endoscope handle, endoscope handle and endoscope - Google Patents

Abstract

The invention relates to the technical field of endoscopes, in particular to a disposable section of an endoscope handle, the endoscope handle and an endoscope, wherein the disposable section comprises a shell, a traction wheel and an electric connecting piece, the traction wheel is rotatably arranged on the end wall of the near end of the shell, the end wall of the near end of the traction wheel is provided with a first butt joint part for driving the traction wheel to rotate, the electric connecting piece is fixedly arranged on the end wall of the near end of the shell, the middle part of the traction wheel is provided with an avoidance hole, and part of the electric connecting piece penetrates through the avoidance hole; in the above scheme, the middle part of traction wheel is provided with dodges the hole, makes the electric connecting piece of wearing to establish keep apart and can not rotate along with the traction wheel rotates, and electric connecting piece docks with definite position and gesture and used repeatedly section, and electric connecting piece only is as signal transmission part, and need not as power transmission part, can ensure the steadiness that electric connecting piece and wire are connected to signal transmission's stability has been ensured, the condition that signal intermittent type or signal disappearance appears is avoided.

Description

Disposable section of endoscope handle, endoscope handle and endoscope

Technical Field

The invention relates to the technical field of endoscopes, in particular to a disposable section of an endoscope handle, the endoscope handle and an endoscope.

Background

The endoscope is a medical diagnosis instrument, generally comprises a handle and an insertion part, the insertion part can extend into a human body, internal tissues of the human body are observed through a camera module packaged at the far end of the insertion part, a doctor can be helped to judge pathological change positions in the human body and tissue structure characteristics of the pathological change positions, and the handle of the endoscope is operated to adjust the posture of a bending section of the insertion part, so that the orientation of the camera module is adjusted, fixed-point observation and other functions are realized.

The applicant has proposed in patent CN114795068A an endoscope handle which comprises a reusable section and a disposable section which are detachably connected, and the used disposable section is disposed after use, so as to solve the problem of cross infection and reduce disposal cost of the endoscope. However, the applicant found that the endoscope using the endoscope handle is likely to have a signal interruption or signal loss during use, and thus it is difficult to ensure the stability of the endoscope during use, and there is a certain safety risk during the operation.

Disclosure of Invention

The invention discloses a disposable section of an endoscope handle, the endoscope handle and an endoscope, and aims to solve the technical problem that signals of the endoscope in the related art are intermittent or disappear.

In order to solve the problems, the invention adopts the following technical scheme:

in a first aspect, the present application provides a disposable segment of an endoscope handle, including a housing, a traction wheel and an electrical connector, wherein the traction wheel is rotatably disposed on a proximal end wall of the housing, and a first butt joint portion for driving the traction wheel to rotate is disposed on the proximal end wall of the traction wheel; the electric connecting piece is fixedly arranged on the end wall of the near end of the shell, an avoiding hole is formed in the middle of the traction wheel, and the part of the electric connecting piece penetrates through the avoiding hole.

Further, the electrical connection piece includes the base and connect in the electrical connection portion of base, the base is fixed to be located the casing, electrical connection portion passes the hole of dodging exposes in the casing.

Further, the base comprises a base portion and an adapter portion connected with the base portion, the base portion is fixedly matched with the shell, and the traction wheel is rotationally matched with the adapter portion.

Further, the projection of the base portion in the first direction is located in a projection area of the adapter portion in the first direction, and the first direction is the axial direction of the shell.

Further, first butt joint portion is week side confined loop configuration, just first butt joint portion with the traction wheel coaxial setting, the hole of dodging is seted up in the inboard of first butt joint portion.

Further, the first butt joint part is provided with a plurality of tooth grooves distributed along the circumferential direction of the first butt joint part.

Furthermore, the near-end wall of the shell is provided with an accommodating space, the traction wheel is rotatably arranged in the accommodating space, a rope groove extending along the circumferential direction of the traction wheel is formed in the annular wall of the traction wheel, and a traction rope leading-out hole is formed in the side wall or the bottom wall of the accommodating space of the shell.

Further, under the condition that the traction rope leading-out hole is formed in the side wall of the accommodating space, the traction rope leading-out hole is flush with the rope groove.

In a second aspect, the present application provides an endoscope handle comprising a reusable section and a disposable section of the endoscope handle as described above, the reusable section being detachably connectable to the disposable section. The reusable section is provided with a second butt joint part which is used for butt joint with the first butt joint part so as to drive the traction wheel to rotate.

In a third aspect, the present application provides an endoscope comprising an insertion section and the aforementioned endoscope handle, the proximal end of the insertion section being connected to the endoscope handle.

The technical scheme adopted by the invention can achieve the following beneficial effects:

firstly, the disposable section of the endoscope handle, the endoscope handle and the endoscope disclosed by the application are provided with the avoidance hole in the middle of the traction wheel, so that the penetrated electric connecting piece is isolated and cannot rotate along with the rotation of the traction wheel, the electric connecting piece is butted with the reusable section at a determined position and posture, on one hand, the butt joint convenience of the reusable section and the disposable section is increased, on the other hand, the electric connecting piece is only used as a signal transmission part and is not required to be used as a force transmission part, the connection stability of the electric connecting piece and a lead can be ensured, the condition of poor contact between the electric connecting piece and the lead is avoided, the stability of signal transmission is ensured, and the condition of signal interruption or signal disappearance is avoided;

second, this kind of mode has avoided the biased design of the relative transmission structure of electric connecting piece among traditional endoscope handle, makes electric connecting piece overlap in the traction wheel in radial direction, and the mode of overlapping arrangement has reduced and has occupied at both space on casing radial direction, is favorable to the spatial layout of other parts in the casing in the disposable section, also is favorable to casing self to reduce radial dimension simultaneously, is favorable to endoscope handle's miniaturized development, and then makes things convenient for operating personnel to grip the operation.

Drawings

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

FIG. 1 is a block diagram illustrating a disposable segment according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a housing according to an embodiment of the present application;

FIG. 3 is a schematic illustration of a traction wheel according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an electrical connector according to an embodiment of the present application;

FIG. 5 is a schematic view of an electrical connector and a traction wheel assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural view of an endoscope handle of an embodiment of the present application;

fig. 7 is a schematic configuration diagram of an endoscope according to an embodiment of the present application.

In the figure:

100-shell, 110-containing space, 120-pulling rope leading-out hole, 130-through hole; 200-traction wheel, 210-first butt joint part, 211-tooth groove, 220-avoidance hole and 230-rope groove; 300-electrical connector, 310-base, 311-base, 312-adapter, 320-electrical connection; 400-reusable section, 410-second docking portion; 500-pulling a rope; 600-insert part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the invention, the near end and the far end are far and near positions of the structure relative to the operation of a human body under the use environment so as to conveniently describe the position relationship between the components and facilitate understanding; "proximal" and "distal" are relative positional relationships, not absolute.

The disposable section of the endoscope handle, the endoscope handle and the endoscope provided by the embodiment of the present application will be described in detail with reference to fig. 1 to 7 by specific embodiments and application scenarios thereof.

Referring to fig. 1 to 4, the present embodiment discloses a disposable segment of an endoscope handle, which includes a housing 100, a traction wheel 200 and an electrical connector 300. Wherein the housing 100 is a base member of the disposable section of the endoscope handle, and can provide a mounting and protection base for the traction wheel 200 and the electrical connector 300.

Specifically, the proximal end wall of the housing 100 is recessed inwards to form an accommodating space 110, the traction wheel 200 is rotatably disposed in the accommodating space 110, and the axial direction of the traction wheel 200 is the same as the axial direction of the housing 100, a traction rope leading-out hole 120 communicated with the inner cavity of the housing 100 is disposed on the bottom wall or the side wall of the accommodating space 110, a traction rope 500 connected to the bending section of the endoscope is led out through the traction rope leading-out hole 120 and wound on the annular wall of the traction wheel 200, the annular wall of the traction wheel 200 is provided with a rope groove 230 extending along the circumferential direction of the annular wall, the traction rope 500 is wound in the rope groove 230, the proximal end wall of the traction wheel 200 is provided with a first coupling portion 210 for driving the traction wheel 200 to rotate, when the traction wheel 200 is driven to rotate, the traction wheel 200 winds or releases the traction rope 500, and the bending section of the pulling insertion portion of the traction rope 500 is bent.

The accommodating space 110 not only provides an installation space for the traction wheel 200, but also can limit the traction rope 500 by the side wall of the accommodating space 110 under the condition that the traction rope is wound on the annular wall of the traction wheel 200, so that the traction rope 500 is prevented from being separated from the rope groove 230 of the traction wheel 200.

The applicant proposes an endoscope handle in patent CN114795068A, wherein the first butt joint member has a butt joint part and a signal part, so that only one butt joint transmission member needs to be butted in the butt joint process, and the structural butt joint and the signal transmission between the disposable section and the reusable section can be realized simultaneously; however, in the course of research, the inventor found that, because the first butt joint member is used as a force transmission member in the endoscope handle, it is inevitably movably arranged in the endoscope handle, which causes the situation that the lead connected with the first butt joint member is pulled and loosened, the lead is in poor contact with the first butt joint member, and further causes the situation that the signal is interrupted or completely disappeared, it is difficult to ensure the stability of the endoscope, and even a certain potential safety hazard exists in the operation process.

In the embodiment of the present invention, the electrical connector 300 is fixedly disposed on the proximal end wall of the housing 100, the middle portion of the traction wheel 200 is provided with the avoiding hole 220, the avoiding hole 220 avoids the electrical connector 300, so that the electrical connector 300 can pass through the middle portion of the traction wheel 200 to be electrically connected to the reusable section 400, and when the traction wheel 200 rotates, the electrical connector 300 is isolated by the avoiding hole 220 and does not rotate along with the traction wheel 200.

Based on the above technical scheme, the disposable section of the endoscope handle disclosed in the embodiment of the present application, the middle portion of the traction wheel 200 is provided with the avoidance hole 220, so that the penetrating electrical connector 300 is isolated and cannot rotate along with the rotation of the traction wheel 200, the electrical connector 300 is butted with the reusable section 400 at a determined position and posture, on one hand, the convenience of butting the reusable section 400 and the disposable section is increased, on the other hand, the electrical connector 300 is only used as a signal transmission component and does not need to be used as a force transmission component, the stability of connection between the electrical connector 300 and a lead wire can be ensured, the condition of poor contact between the electrical connector 300 and the lead wire is avoided, thereby the stability of signal transmission is ensured, and the condition of signal discontinuity or signal disappearance is avoided.

Meanwhile, the design mode that the electric connecting piece 300 is biased relative to the transmission structure in the traditional endoscope handle is avoided by the mode, the electric connecting piece 300 is overlapped on the traction wheel 200 in the radial direction, the space occupation of the electric connecting piece 300 and the traction wheel in the radial direction of the shell 100 is reduced by the overlapping arrangement mode, the spatial layout of other parts in the disposable section in the shell 100 is facilitated, the radial size reduction of the shell 100 is facilitated, the miniaturization development of the endoscope handle is facilitated, and the holding operation of an operator is facilitated.

In the embodiment of the present application, the electrical connector 300 includes a base 310 and an electrical connection portion 320 connected to the base 310, the base 310 is fixedly disposed on the casing 100, the electrical connection portion 320 passes through the avoiding hole 220 and is exposed out of the casing 100, and when the disposable section is butted with the reusable section, the exposed electrical connection portion 320 is plugged and matched with a corresponding matching portion on the reusable section to achieve electrical connection. It should be understood that the embodiment of the present application is not limited to the specific form of the electrical connection portion 320, and may be, for example, a Type-C connector or a USB connector.

The base 310 includes a base 311 and an adapter 312 connected to the base 311, wherein the base 311 is fixedly coupled to the housing 100, and the traction wheel 200 is rotatably coupled to the adapter 312. Specifically, the projection of the base 311 in the first direction is non-circular, and may be, for example, an ellipse or a square, the housing 100 is provided with a through hole 130 matching with the base 311, when the base 311 is fitted in the through hole 130, the base 311 cannot rotate relative to the housing 100, and the first direction is the axial direction of the housing 100; the projection of the adapter 312 in the first direction is circular and matches with the hole shape of the avoiding hole 220 of the traction wheel 200, so that the traction wheel 200 can be rotatably sleeved on the adapter 312, and a certain supporting and limiting effect can be exerted on the traction wheel 200, thereby preventing the traction wheel 200 from shaking in the radial direction.

In a further technical solution, the projection of the base 311 in the first direction is located in the projection area of the adapter 312 in the first direction, so that a step surface is formed between the base 311 and the adapter 312, and the step surface can be in spacing fit with the end wall of the proximal end of the housing 100, so as to prevent the electrical connector 300 from extending into the housing 100, and thus, the electrical connector 320 can be ensured to be always exposed out of the housing 100. Of course, based on the above, the electrical connector 300 can also be fixed to the front end wall of the housing 100 by glue, so as to ensure the stability of the connection of the electrical connector 300.

In the embodiment of the present application, the first butt-joint portion 210 is a ring-shaped structure with a closed peripheral side, the first butt-joint portion 210 is disposed coaxially with the traction wheel 200, and the aforementioned avoiding hole 220 is opened inside the first butt-joint portion 210. In an alternative embodiment, the first docking portion 210 is provided with a plurality of tooth grooves 211 distributed along a circumferential direction thereof, the tooth grooves 211 may be disposed on an inner side of the first docking portion 210, or may be disposed on an outer side of the first docking portion 210, and accordingly, when the disposable segment is docked with the reusable segment 400, the second docking portion 410 on the reusable segment 400 is provided with a plurality of tooth patterns, and after the disposable segment is docked with the reusable segment 400, the tooth patterns and the tooth grooves 211 are in a plugging fit to transmit torque, so as to drive the traction wheel 200 to rotate. It should be understood that, in consideration of the fact that the traction wheel 200 is not connected to the electrical connector 300, the first docking portion 210 of the embodiment of the present application may further include other docking structures capable of driving the traction wheel 200 to rotate, for example, the first docking portion 210 may be formed with a non-circular docking recess on an inner side thereof, and correspondingly, the second docking portion 410 of the reusable segment 400 may be a matching docking protrusion, and the two docking protrusions are mated to transmit torque.

In a further technical scheme, under the condition that the hauling cable leading-out hole 120 is arranged on the side wall of the accommodating space 110, the hauling cable leading-out hole 120 is flush with the rope groove 230, and thus, the hauling cable 500 in a tensioning state cannot generate axial tension to enable the traction wheel 200 to deflect and generate the phenomenon of blocking or blocking, and the stability of winding or releasing of the hauling cable 500 is improved.

The present embodiments also disclose an endoscope handle, which comprises a reusable section 400 and the aforementioned disposable section, wherein the reusable section 400 is detachably connected to the disposable section. In this application embodiment, but abandon section and used repeatedly section can adopt modes such as threaded connection spare, joint, magnetism to inhale and connect and can dismantle and link to each other, but this application does not restrict the concrete connected mode of abandon section and used repeatedly section. The reusable section 400 has a second docking portion 410, and the second docking portion 410 is used for docking with the first docking portion 210 to drive the traction wheel 200 to rotate.

The embodiment of the application also discloses an endoscope, which comprises an insertion part 600 and the endoscope handle, wherein the proximal end of the insertion part 600 is connected with the endoscope handle, and the endoscope handle can be operated to control the bending section at the distal end of the insertion part 600 to bend.

The endoscope of the embodiment of the application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, an enteroscope, an otoscope, a rhinoscope, an odontoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope and the like, and the embodiment of the application does not specifically limit the types of the endoscope.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' ...does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims (10)

1. A disposable segment of an endoscope handle, comprising:

a housing (100);

the traction wheel (200) is rotatably arranged on the end wall of the near end of the shell (100), and a first butt joint part (210) for driving the traction wheel (200) to rotate is arranged on the end wall of the near end of the traction wheel (200);

the electric connector (300), the electric connector (300) is fixed to be located the near-end wall of casing (100), the middle part of traction wheel (200) is provided with dodges hole (220), the part of electric connector (300) passes dodge hole (220).

2. The disposable section of the endoscope handle according to claim 1, wherein the electrical connector (300) comprises a base (310) and an electrical connecting portion (320) connected to the base (310), the base (310) is fixedly disposed on the housing (100), and the electrical connecting portion (320) is exposed out of the housing (100) through the avoiding hole (220).

3. The disposable section of an endoscope handle according to claim 2, characterized in that the base (310) comprises a base (311) and an adapter (312) connecting the base (311), the base (311) being fixedly fitted to the housing (100), the traction wheel (200) being rotatably fitted to the adapter (312).

4. The disposable segment of an endoscope handle according to claim 3, characterized in that the projection of the base (311) in a first direction, which is the axial direction of the housing (100), is located within the projection area of the adapter (312) in the first direction.

5. The disposable segment of an endoscope handle according to claim 1, characterized in that the first butt joint portion (210) is a ring structure with a closed peripheral side, and the first butt joint portion (210) is coaxially disposed with the traction wheel (200), and the relief hole (220) is opened at an inner side of the first butt joint portion (210).

6. The disposable section of an endoscope handle according to claim 5, characterized in that the first docking portion (210) is provided with a plurality of splines (211) distributed along its circumference.

7. A disposable segment of an endoscope handle according to any of claims 1-6, characterized in that the proximal end wall of the housing (100) is provided with a receiving space (110), the traction wheel (200) being rotatably arranged in the receiving space (110);

the annular wall of the traction wheel (200) is provided with a rope groove (230) extending along the circumferential direction of the traction wheel, and the shell (100) is provided with a traction rope leading-out hole (120) on the side wall or the bottom wall of the accommodating space (110).

8. The disposable section of the endoscope handle according to claim 7, wherein in a case where the pulling-cord extracting hole (120) is provided at a side wall of the accommodating space (110), the pulling-cord extracting hole (120) is flush with the cord groove (230).

9. An endoscope handle, characterized by comprising a reusable section (400) and a disposable section of the endoscope handle according to any of claims 1-8, said reusable section (400) being detachably connected to said disposable section;

the reusable section (400) is provided with a second butt joint part (410), and the second butt joint part (410) is used for butt joint with the first butt joint part (210) so as to drive the traction wheel (200) to rotate.

10. An endoscope, comprising an insertion portion and an endoscope handle of claim 9, the proximal end of the insertion portion being connected to the endoscope handle.

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