CN218978848U - Connecting piece, control handle and soft endoscope - Google Patents

Abstract

The application relates to a connecting piece, a control handle and a flexible endoscope, wherein the connecting piece comprises a fixing piece and a positioning piece, and the fixing piece is provided with a pipe cavity for inserting a bending piece; the positioning piece is rotationally connected to the proximal end of the fixing piece, the outer peripheral wall of the positioning piece is inwards sunken to form a positioning position, and the sunken radian of the positioning position is matched with the radian of the finger abdomen of a human body. The bending piece can be inserted into the lumen of the fixing piece so as to lock the bending piece, so that the bending piece positioned in the lumen presents a hard characteristic, and the difficulty in controlling the movement and rotation of the bending piece is reduced. In addition, the position adjusting piece with the adjusting position can further facilitate an operator to adjust the relative position between the position adjusting piece and the fixing piece through fingers, and is favorable for adjusting the position adjusting piece and the fixing piece to the optimal matching position, so that the adjusting difficulty of the bending piece is reduced, and the operation efficiency is improved.

Description

Connecting piece, control handle and soft endoscope

Technical Field

The application relates to the technical field of medical instruments, in particular to a connecting piece, a control handle and a soft endoscope.

Background

Compared with a hard endoscope, a soft endoscope (hereinafter referred to as a soft endoscope) has the advantage of controlled free bending, can increase the flexibility of operation in the operation process, is widely applied to the medical field at present, and is one of important tools for checking and treating internal organs of a human body.

The prior soft mirror is structurally provided with a head end part, a bending part, a control handle and the like from the far end to the near end. In the operation process, the operator inserts the structures such as the head end part and the bending part of the soft lens into the human body through the natural cavity of the human body, then holds and controls the control handle to move and rotate, thereby driving the bending part and the head end part to move and rotate in the human body, abutting the head end part against the internal organs of the human body, and realizing the inspection and treatment of the internal organs of the human body.

Because the bending part in the current soft mirror is made of softer materials, the flexibility of controlling the bending part to move and rotate by the control handle is poor (far less than that of a hard endoscope), so that the control difficulty of an operator can be increased when the current soft mirror is used for endoscope, the operation time is forced to be prolonged, and the risk of operation is increased.

Disclosure of Invention

Based on this, the present utility model needs to provide a connector, a control handle and a flexible endoscope, so as to reduce the difficulty of the control handle to control the movement and rotation of the flexible endoscope, and improve the operation efficiency.

A connecting piece comprises a fixing piece and a positioning piece, wherein the fixing piece is provided with a pipe cavity for inserting a bending piece; the positioning piece is rotationally connected to the proximal end of the fixing piece, the outer peripheral wall of the positioning piece is inwards sunken to form a positioning position, and the sunken radian of the positioning position is matched with the radian of the finger abdomen of a human body.

In the connecting piece, the bending piece can be inserted into the lumen of the fixing piece to lock the bending piece, so that the bending piece positioned in the lumen presents a hard characteristic, and the difficulty in controlling the movement and rotation of the bending piece is reduced. In addition, the position adjusting piece with the adjusting position can further facilitate an operator to adjust the relative position between the position adjusting piece and the fixing piece through fingers, and is favorable for adjusting the position adjusting piece and the fixing piece to the optimal matching position, so that the adjusting difficulty of the bending piece is reduced, and the operation efficiency is improved.

In one embodiment, a plurality of anti-slip ribs are arranged on the periphery of the positioning piece, the length direction of each anti-slip rib is perpendicular to the axial direction of the lumen, and the anti-slip ribs are arranged at intervals along the axial direction of the lumen.

In one embodiment, the inner periphery of the positioning member comprises a first connecting position and a second connecting position which are deviated from each other, the first connecting position is close to the proximal end and is provided with an internal thread for being in threaded connection with the fixing member, and the second connecting position is close to the distal end and is clamped with the outer periphery of the fixing member.

In one embodiment, a limiting table extending outwards is arranged at the proximal end of the outer periphery of the fixing piece, a limiting groove recessed outwards is formed in the inner periphery of the positioning piece between the first connecting position and the second connecting position, and when the fixing piece and the positioning piece are installed, the limiting table is clamped in the limiting groove.

In one embodiment, a second limiting table extending outwards is arranged on the periphery of the fixing piece, and when the fixing piece and the positioning piece are installed, the second limiting table abuts against the distal end of the second connecting position.

In one embodiment, the fixing member is provided with a rotating section, a backward moving section and an inserting section in sequence from the proximal end to the distal end, wherein the inner diameter of the backward moving section is smaller than the outer diameter of the bending member, and the inner diameter of the inserting section is larger than the outer diameter of the bending member.

In one embodiment, the fixing member further includes a transition section disposed between the rotating section and the rearward section, an inner diameter of a distal end of the transition section being identical to an inner diameter of the rearward section, and an inner diameter of a proximal end of the transition section being identical to an inner diameter of the rotating section.

The control handle comprises a shell, a control piece and the connecting piece, wherein the distal end of the shell is inserted into the lumen and is used for connecting a bending piece, the control piece is partially and rotatably connected with the shell and is used for controlling the bending piece to move and rotate, and the connecting piece is detachably connected with the distal end of the shell.

In the control handle, the bending piece can be inserted into the lumen of the fixing piece to lock the bending piece, so that the bending piece positioned in the lumen presents a hard characteristic, and the difficulty of controlling the bending piece to move and rotate by the control piece is reduced. In addition, the position adjusting piece with the adjusting position can further facilitate an operator to adjust the relative position between the position adjusting piece and the fixing piece through fingers, and is favorable for adjusting the position adjusting piece and the fixing piece to the optimal matching position, so that the adjusting difficulty of the bending piece is reduced, and the operation efficiency is improved.

In one embodiment, the housing is provided with a cavity, which communicates with the lumen.

A flexible endoscope is provided with a front end piece, a bending piece and the control handle from a distal end to a proximal end.

In the flexible endoscope, the bending piece can be inserted into the lumen of the fixing piece so as to lock the bending piece, so that the bending piece positioned in the lumen presents a hard characteristic, and the difficulty of controlling the bending piece to move and rotate by the control piece is reduced. In addition, the position adjusting piece with the adjusting position can further facilitate an operator to adjust the relative position between the position adjusting piece and the fixing piece through fingers, and is favorable for adjusting the position adjusting piece and the fixing piece to the optimal matching position, so that the adjusting difficulty of the bending piece is reduced, and the operation efficiency is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view of the overall structure of a flexible endoscope according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the overall structure of the flexure inserted into the connector in an embodiment of the present application;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is a cross-sectional view of the overall structure of the fixing member in the embodiment of the present application.

Description of the reference numerals

1. A flexible endoscope; 10. a control handle; 11. a housing; 12. a control member; 20. a bending member; 30. an insert; 100. a connecting piece; 110. a fixing member; 111. a lumen; 112. a limiting table; 113. a rotating section; 114. a transition section; 115. a backward moving section; 116. an insertion section; 120. a positioning member; 121. adjusting the position; 122. an anti-slip ridge; 123. a first connection location; 124. a second connection location; 125. and a limit groove.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

It should be noted that, the proximal end in the present application is one end close to the surgeon, the distal end is one end far away from the surgeon, the upper end is one end close to the head when the surgeon stands to control the control handle 10, and the lower end is one end close to the sole when the surgeon controls the control handle 10.

As shown in fig. 1-4, the present application provides a connector 100 that includes a securing member 110 and a positioning member 120. The fixing member 110 is provided with a lumen 111 into which the bending member 20 is inserted. The positioning member 120 is rotatably coupled to the proximal end of the fixed member 110. The outer peripheral wall of the positioning member 120 is recessed inward to form a positioning position 121. The concave radian of the adjusting position 121 is matched with the radian of the human finger abdomen.

In the above-mentioned connection member 100, the bending member 20 can be inserted into the lumen 111 of the fixing member 110 to lock the bending member 20, so that the bending member 20 located inside the lumen 111 presents a hard characteristic, thereby reducing the difficulty in manipulating the movement and rotation of the bending member 20. In addition, the position adjusting member 120 with the adjusting position 121 can further facilitate the operator to adjust the relative position between the position adjusting member 120 and the fixing member 110 by fingers, which is beneficial to adjusting the position adjusting member 120 and the fixing member 110 to the optimal matching position, thereby reducing the adjusting difficulty of the bending member 20 and improving the operation efficiency.

The fixing member 110 is a rigid tube (the fixing member 110 may be made of a rigid polymer material, an alloy material, or the like, which has a hardness greater than that of the bending member 20), and the soft bending member 20 may be inserted. Therefore, the surgeon can control the soft bending member 20 inserted into the lumen 111 in a manner of controlling the hard scope, which is advantageous in reducing the manipulation difficulty, shortening the operation time, and finally reducing the operation risk.

It should be further noted that the bending member 20 may be inserted directly into the lumen 111 of the fixing member 110, or after the proximal end of the bending member 20 is connected to another hard member, the hard member and the bending member 20 may be inserted together into the lumen 111 of the fixing member 110. In addition, the flexure 20 should be partially inserted into the lumen 111 of the mount 110 to enable the various probe elements attached at the distal end of the flexure 20 to extend into the focal region for detection.

In one embodiment, as shown in fig. 2 and 3, the outside of the positioning member 120 has a concave shape with both large ends and small middle. And the concave shape is similar to the radian of the human body finger abdomen, so that the finger feeling of a surgeon when the surgeon performs the position-adjusting operation by using the finger is more comfortable. A plurality of anti-slip ribs 122 are provided in the concave shape to increase friction during positioning.

The longitudinal direction of the slip prevention rib 122 is not limited herein. The plurality of anti-slip ribs 122 may be arranged in an orderly manner or in a disordered manner. Specifically, in the present embodiment, the longitudinal direction of the anti-slip ribs 122 is perpendicular to the axial direction of the lumen 111, and the plurality of anti-slip ribs 122 are arranged at intervals along the axial direction of the lumen 111.

Of course, other forms of the outer side of the positioning member 120 are possible, as long as the axial relative positions of the connecting member 100 and the bending member 20 can be manually adjusted by the surgeon.

Further, in one embodiment, as shown in fig. 2 and 3, the inner circumference of the positioning member 120 includes a first connection location 123 and a second connection location 124 facing away from each other. The first connection location 123 is disposed near the proximal end and is provided with internal threads for threaded connection with the anchor 110. The second connector 100 is disposed near the distal end and is engaged with the outer periphery of the fixing member 110.

Therefore, the fixing member 110 is inserted into the positioning member 120, and the first connecting portion 123 is screwed with the fixing member 110, and the second connecting portion 124 is clamped with the fixing member 110, so as to increase the connection stability between the fixing member 110 and the positioning member 120. During use, the positioning member 120 can be rotated to control the relative positions of the fixing member 110 and the positioning member 120 in the axial direction, so as to adjust the relative positions of the bending member 20 and the positioning member 120 in the axial direction.

It should be noted that, the projection of the second connection location 124 in the axial direction is a ring, and the outer diameter of the second connection location 124 may be equal to or slightly larger than the inner diameter of the distal end of the positioning member 120. That is, when the longitudinal first connecting portion 123 is not screwed to the fixing member 110, the fixing member 110 and the positioning member 120 can be prevented from being separated under the condition of small shake or external force interference by only clamping the second connecting portion 124 to the distal end of the fixing member 110.

In one embodiment, as shown in FIG. 3, the proximal end of the outer periphery of the anchor 110 is provided with a stop abutment 112 extending outwardly. The positioning member 120 has a limiting groove 125 formed on an inner periphery thereof between the first connection portion 123 and the second connection portion 124. When the fixing member 110 and the positioning member 120 are assembled, the limiting table 112 is clamped in the limiting slot 125.

Therefore, the optimal mounting positions of the fixing member 110 and the positioning member 120 can be set according to the actual situation, i.e. the limiting table 112 is clamped with the limiting groove 125 when the fixing member is positioned at the optimal mounting position, which is beneficial to further improving the mounting stability of the fixing member 110 and the positioning member 120.

In one embodiment, as shown in fig. 4, the fixing member 110 is provided with a rotation section 113, a transition section 114, a backward section 115, and an insertion section 116 in this order from the proximal end to the distal end.

The inner diameter of the insertion section 116 is slightly larger than the outer diameter of the flexure 20, and its inner shape is the same as the outer shape of the flexure 20, i.e., the axial cross-section is circular so that the flexure 20 is inserted therein and the flexure 20 is prevented from swinging within the insertion section 116.

The inner diameter of the back section 115 is smaller than the outer diameter of the flexure 20 to prevent the flexure 20 from moving axially relative to the mount 110.

The inner diameter of the rotating section 113 is larger than the outer diameter of the bending member 20 for the bending member 20 to extend.

The transition section 114 is located between the back-moving section 115 and the rotating section 113 and is provided in a horn shape to connect the back-moving section 115 and the rotating section 113. Wherein the inner diameter of the distal end of the transition section 114 coincides with the inner diameter of the rearward section 115, and the inner diameter of the proximal end of the transition section 114 coincides with the inner diameter of the rotating section 113.

As shown in fig. 1, the present application further provides a control handle 10, including a housing 11, a control member 12, and the above-mentioned connection member 100. The distal end of the housing 11 is inserted into the lumen 111 and is used to attach the flexure 20. The control member 12 is partially rotatably coupled to the housing 11 and is adapted to control movement and rotation of the flexure member 20. Wherein the housing 11 is provided with a cavity communicating with the lumen 111 for the bending member 20 to extend in. The connector 100 is detachably connected to the distal end of the housing 11.

The housing 11 includes a grip portion (not shown) and an extension portion (not shown) disposed at an angle. The holding part is used for holding by one hand of a doctor. The end of the extension remote from the grip is used to connect the flexure 20. During the operation, the surgeon can hold the holding part with one hand and control the movement and rotation of the bending piece 20 by the finger hooking control piece 12; in addition, the surgeon can adjust the position of the bending member 20 by rotating the positioning member 120, thereby adjusting the positional relationship between the positioning member 120 and the fixing member 110 in the axial direction. Such an arrangement is advantageous in reducing the difficulty of manipulation of the flexure 20, thereby reducing the surgical time and the surgical risk.

The present application also provides a flexible endoscope 1, as shown in fig. 1, a distal end to a proximal end of the flexible endoscope 1 are sequentially provided with a front end piece (not shown), a bending piece 20, and the control handle 10 described above. The insert 30 is provided between the bending member 20 and the connecting member 100 for fixing the proximal end of the bending member 20 with the fixing member 110 so as to facilitate the control handle 10 to control the bending of the bending member 20.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A connector, comprising:

the fixing piece is provided with a pipe cavity for inserting the bending piece;

the positioning piece is rotationally connected to the proximal end of the fixing piece, the outer peripheral wall of the positioning piece is inwards sunken to form a positioning position, and the sunken radian of the positioning position is matched with the radian of the finger abdomen of a human body.

2. The connector of claim 1, wherein the positioning member has a plurality of anti-slip ribs on an outer periphery thereof, a longitudinal direction of the anti-slip ribs being perpendicular to an axial direction of the lumen, and the plurality of anti-slip ribs being arranged at intervals along the axial direction of the lumen.

3. The connector of claim 1, wherein the inner periphery of the positioning member includes a first connecting position and a second connecting position facing away from each other, the first connecting position being disposed near the proximal end and provided with an internal thread for threaded connection with the fixing member, and the second connecting position being disposed near the distal end and being engaged with the outer periphery of the fixing member.

4. A connector according to claim 3, wherein the proximal end of the outer periphery of the fixing member is provided with a limiting table extending toward the outside, the inner periphery of the positioning member is provided with a limiting groove recessed toward the outside between the first connecting position and the second connecting position,

when the fixing piece and the position adjusting piece are installed, the limiting table is clamped in the limiting groove.

5. A connector according to claim 3, wherein a second stop extending outwardly is provided on the outer periphery of the fixing member, the second stop abutting the distal end of the second connection site when the fixing member is mounted to the positioning member.

6. The connector of claim 1, wherein the securing member is provided with a rotating section, a rearward section, and an inserting section in this order from the proximal end to the distal end, the rearward section having an inner diameter smaller than an outer diameter of the bending member, and the inserting section having an inner diameter larger than the outer diameter of the bending member.

7. The connector of claim 6, wherein the securing member further comprises a transition section disposed between the rotating section and the rearward section, the inner diameter of the distal end of the transition section being consistent with the inner diameter of the rearward section, the inner diameter of the proximal end of the transition section being consistent with the inner diameter of the rotating section.

8. A control handle comprising a housing, a control member, and a connector member according to any one of claims 1-7, wherein the distal end of the housing is inserted into the lumen and is adapted to connect to a flexure member, wherein the control member is partially rotatably connected to the housing and is adapted to control movement and rotation of the flexure member, and wherein the connector member is removably connected to the distal end of the housing.

9. The control handle of claim 8, wherein said housing is provided with a cavity, said cavity being in communication with said lumen.

10. A flexible endoscope, characterized in that a front end piece, a bending piece and a control handle according to claim 8 or 9 are provided in this order from the distal end to the proximal end.

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