CN219070212U

CN219070212U - Installation locator, control handle and soft endoscope

Info

Publication number: CN219070212U
Application number: CN202222438754.8U
Authority: CN
Inventors: 周均洪
Original assignee: Shenzhen Wangshuo Medical Technology Co ltd
Current assignee: Shenzhen Wangshuo Medical Technology Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-05-26
Anticipated expiration: 2032-09-14

Abstract

The application relates to a mounting positioner, a control handle and a flexible endoscope, wherein the mounting positioner comprises a first connecting part and a second connecting part, the first connecting part is surrounded to form a first through hole, and the first through hole is used for inserting a bending piece; the distal end of the second connecting portion is connected to the proximal end of the first connecting portion, a second through hole is formed in the proximal end of the second connecting portion and used for allowing a pull rope to pass through, and the axis of the first through hole is not coincident with the axis of the second through hole. According to the mounting positioner, the first through hole and the second through hole with the misaligned axes are arranged, and when the bending piece occupies the position of the central axis (namely the axis of the first through hole), a placing space is provided for the stay cord, so that an endoscope with the mounting positioner can be adapted to matched instruments with various hardness, the control difficulty of the matched instruments is reduced, the operation time is shortened, and the operation risk is reduced.

Description

Installation locator, control handle and soft endoscope

Technical Field

The application relates to the technical field of medical instruments, in particular to a mounting positioner, 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.

Currently, the fact that the turntable in the control handle is located on the axis of the soft mirror, i.e. occupies space at the axis of the soft mirror, results in the need to bypass the various control and positioning elements located within the control handle. The device capable of realizing bypass in the control handle cavity can only be a soft complete set device with small hardness, and cannot be adapted to a semi-soft complete set device with large hardness, so that the control handle has large control difficulty on the bending part and the head end part, which results in long operation time and high operation risk.

Disclosure of Invention

Based on the above, it is necessary to provide a mounting positioner, a control handle and a flexible endoscope, so that the control handle can be adapted to matched instruments with various hardness, thereby reducing the control difficulty of the control handle on the bending part and the head end part.

An installation positioner comprises a first connecting part and a second connecting part, wherein the first connecting part surrounds to form a first through hole, and the first through hole is used for inserting a bending piece; the distal end of the second connecting portion is connected to the proximal end of the first connecting portion, a second through hole is formed in the proximal end of the second connecting portion and used for allowing a pull rope to pass through, and the axis of the first through hole is not coincident with the axis of the second through hole.

According to the mounting positioner, the first through hole and the second through hole with the misaligned axes are arranged, and when the bending piece occupies the position of the central axis (namely the axis of the first through hole), a placing space is provided for the stay cord, so that an endoscope with the mounting positioner can be adapted to matched instruments with various hardness, the control difficulty of the matched instruments is reduced, the operation time is shortened, and the operation risk is reduced.

In one embodiment, the first connecting portion includes a first fixed section and a second fixed section sequentially connected from a distal end to a proximal end, an outer diameter of the first fixed section is smaller than an outer diameter of the second fixed section, and the second connecting portion is connected with the second fixed section.

In one embodiment, a positioning portion is arranged on the periphery of the second fixing section and used for being in alignment and abutting connection with the positioning groove of the inner cavity of the shell.

In one embodiment, the axis of the first through hole is parallel to the axis of the second through hole.

In one embodiment, the number of the first through holes is one, and the number of the second through holes is two.

In one embodiment, the number of the first through holes is one, and the number of the second through holes is four.

In one embodiment, the projection of the first connecting portion in the axial direction is a circular ring, and the projection of the second connecting portion in the axial direction is a semicircular ring.

In one embodiment, the first through hole has an inner diameter smaller than an outer diameter of the flexure.

In one embodiment, the second through hole has an inner diameter greater than an outer diameter of the pull cord.

The control handle comprises a shell, a control piece and the installation positioner, wherein the distal end of the shell is connected with the second connecting part and used for being connected with a bending piece, and the control piece is partially and rotatably connected with the shell and used for controlling the bending piece to move and rotate.

According to the control handle, the first through hole and the second through hole with the misaligned axes are arranged in the installation locator, and when the bending piece occupies the position of the central axis (namely the axis of the first through hole), a placing space is provided for the stay cord, so that the endoscope with the control handle can be adapted to matched instruments with various hardness, the control difficulty of the matched instruments is reduced, the operation time is shortened, and the operation risk is reduced.

In one embodiment, the housing is provided with an inner cavity, and the outer wall of the first connecting portion abuts against the inner wall of the inner cavity.

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.

According to the soft endoscope, the first through hole and the second through hole with the misaligned axes are arranged in the installation positioner, and when the bending piece occupies the position of the central axis (namely the axis of the first through hole), a placing space is provided for the stay cord, so that the endoscope can be adapted to matched instruments with various hardness, the control difficulty of the matched instruments is reduced, the operation time is shortened, and the operation risk is reduced.

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 cross-sectional view of an overall structure of a flexible endoscope according to an embodiment of the present application;

fig. 2 is a schematic diagram of an overall structure of a mounting positioner according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of an overall construction of a mounting fixture according to an embodiment of the present application;

FIG. 4 is a side view of the overall structure of an instrument insert in an embodiment of the present application;

fig. 5 is a cross-sectional view of the instrument insert of fig. 3.

Description of the reference numerals

1. A flexible endoscope; 10. a control handle; 11. a housing; 12. a control member; 13. a turntable; 14. a hook; 20. a bending member; 100. installing a positioner; 110. a first connection portion; 111. a first through hole; 112. a first fixed section; 113. a second fixed section; 114. a positioning part; 120. a second connecting portion; 121. a second through hole; 200. an instrument insert; 210. a straight-through member; 211. a protrusion; 212. a clamping groove; 220. a side pass; 230. a locking member; 231. a soft rubber piece; 232. locking the cap.

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, the present application provides a flexible endoscope 1. The flexible endoscope 1 is provided with a distal end member (not shown), a bending member 20, and a control handle 10 in this order from the distal end to the proximal end. The tip piece is used to detect conditions in the lesion area. The bending member 20 bends and moves under the control of the control handle 10 and is capable of moving and rotating the nose piece.

In addition, the present application also provides a control handle 10 including a housing 11, a control member 12, and a mounting locator 100. The distal end of the housing 11 is connected to the mounting fixture 100 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.

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. The extension has an interior cavity in which the flexure 20 extends. During the operation, the surgeon can grasp the grip portion with one hand and, by finger, grasp the control member 12 to control movement and rotation of the flexure member 20.

Further, a pull cord (not shown) is provided in the extension, and the control member 12 includes a turntable 13 and a hook 14. The distal end of the drawstring is connected to the flexure element 20 and the proximal end of the drawstring is connected to the turntable 13. The rotary table 13 is disposed in the inner cavity of the extension portion, one end of the hook 14 is fixedly intercepted with the rotary table 13, and the other end extends out of the extension portion and is used for the finger of the surgeon to hook. During the operation, the finger of the surgeon can hook the hook 14 and drive the turntable 13 to rotate in the inner cavity. When the turntable 13 rotates, the turntable 13 drives the pull rope to move, thereby controlling the movement and rotation of the bending piece 20.

As shown in fig. 2 and 3, the installation locator 100 includes a first connection portion 110 and a second connection portion 120. The first connection portion 110 is formed around the first through hole 111. The first through hole 111 is for insertion of the flexure 20. The distal end of the second connection portion 120 is connected to the proximal end of the first connection portion 110. A second through hole 121 is formed at a proximal end of the second connection portion 120. The second through hole 121 is used for passing the pull rope. Wherein the axis of the first through hole 111 is not coincident with the axis of the second through hole 121.

Therefore, in the above-mentioned installation positioner 100, by arranging the first through hole 111 and the second through hole 121 with misaligned axes, when the bending piece 20 occupies the position of the central axis (i.e., the axis of the first through hole 111), a placement space is provided for the pull rope, so that the endoscope with the installation positioner 100 can be adapted to the matched instruments with various hardness, the control difficulty of the matched instruments is reduced, the operation time is shortened, and the operation risk is reduced.

The axis of the first through hole 111 coincides with the axis of the inner cavity of the extension portion (may also be referred to as a central axis), and therefore, both the hard bending piece 20 and the soft bending piece 20 can be directly inserted into the inner cavity of the extension portion after the insertion of the first through hole 111. The flexible endoscope 1 having the attachment positioner 100 is advantageous in widening the range of materials for the bending member 20.

It should be noted that, since the axis of the second through hole 121 is not coincident with the axis of the first through hole 111, the turntable 13 can be offset from the central axis, so as to avoid occupying space in the central axis direction, which is beneficial for other components to be mounted in the central axis direction. In particular, the instrument insert 200 can be freed up of space in the direction of the central axis.

Further, as shown in fig. 2 and 3, the axis of the second through hole 121 may be parallel to the axis of the first through hole 111, or may be disposed at an angle with respect to the axis of the first through hole 111. Specifically, in the present embodiment, the axis of the second through hole 121 is disposed in parallel with the axis of the first through hole 111.

Alternatively, the number of the first through holes 111 may be one or more. When the number of the bending pieces 20 is one, one first through hole 111 may be provided; and when the number of the bending pieces 20 is plural, the number of the first through holes 111 may be set to coincide with the number of the bending pieces 20. In addition, the number of the second through holes 121 should be identical to the number of the pulling ropes, that is, when the number of the pulling ropes is two, the number of the second through holes 121 is two; when the number of the pull ropes is four, the number of the second through holes 121 is four. Specifically, in the present embodiment, the number of the first through holes 111 is one, and the number of the second through holes 121 is two.

It should be noted that the structure of the second connecting portion 120 does not affect the back and forth movement of the pull cord located in the second through hole 121, so as to ensure that the bending member 20 can bend freely when controlled. The tail ends of two pull ropes controlling the same bending plane are fixed on the same rotary table 13, and the second through holes 121 through which the two pull ropes pass are in the plane of the rotary table 13, so that the pull ropes are prevented from falling off from the rotary table 13 in the working process.

Further, in the present embodiment, the projection of the first connecting portion 110 in the axial direction is a circular ring, the projection of the second connecting portion 120 in the axial direction is a semicircular ring, wherein the bottom portion of the second connecting portion 120 is hollowed out for the pull rope to pass through, and the weight of the second connecting portion 120 can be effectively reduced.

In one embodiment, the inner diameter of the first through hole 111 is smaller than the outer diameter of the bent piece 20 to fix the bent piece 20 inserted into the first through hole 111 firmly. The inner diameter of the first through hole 111 should be slightly smaller than the outer diameter of the bending member 20, so that the bending member 20 can be inserted under the action of external force, and the bending member 20 can be limited under the shaking or shaking condition. In addition, the second through hole 121 has an inner diameter larger than an outer diameter of the pulling string to facilitate the pulling string to pass through.

As shown in fig. 4 and 5, instrument insert 200 includes a pass-through member 210, a side pass-through member 220, and a locking member 230. Wherein the through member 210 is located on the central axis, and has a front end connected to the working channel of the bending member 20 and a rear end connected to the locking member 230. The straight-through piece 210 and the side-through piece 220 are hollow pipes. The side pass 220 is connected to the lower end of the pass-through 210, and the hollow passages of the two communicate. The proximal end of the through member 210 is circumferentially provided with a protrusion 211, and the protrusion 211 can abut against the inner wall of the extension portion, so as to increase the tightness between the through member 210 and the extension portion.

The proximal end of the extension is provided with a through hole in the direction of the central axis for the insertion of the through member 210 into the housing. It should be noted that, the outer diameter of the protrusion 211 near the proximal end of the through-hole 210 is larger than the inner diameter of the through-hole, so as to prevent the through-hole 210 from leaving the through-hole in the proximal direction under a slight shake or touch. In addition, the distal end of the through member 210 is provided with a clamping groove 212, and the inner wall of the extension part is provided with a fixing groove matched with the clamping groove 212. When the pass-through member 210 is mounted in place with the extension, the catch 212 engages the retaining groove to prevent distal movement of the pass-through member 210.

Thus, when the through member 210 and the extension portion are mounted in place, the protrusion 211 and the clamping groove 212 can limit the movement of the through member 210 relative to the extension portion in the proximal direction and the distal direction, respectively, so as to facilitate the mounting stability of the through member 210 in the inner cavity of the extension portion.

Further, as shown in fig. 4 and 5, the locking member 230 includes a soft rubber member 231 and a locking cap 232. The soft rubber member 231 is hollow and is located in the hollow cavity of the through member 210. The locking cap 232 is provided with a hollow post on the central axis. The inner edge portion of the locking cap 232 is threaded to mate with the threads on the proximal periphery of the pass-through member 210.

When the locking cap 232 is rotated, the internal threads of the locking cap 232 move relatively over the proximal external threads of the pass-through member 210. When the locking cap 232 is moved distally, the hollow post of the locking cap 232 presses the flexible glue member 231 to deform the flexible glue member 231 and narrow the hollow channel of the flexible glue member 231, thereby locking the instrument in the channel. It will be appreciated that the locking cap 232, when moved proximally, can unlock the instrument within the channel member lumen.

As shown in fig. 2 and 3, in one embodiment, the first connection portion 110 includes a first fixed segment 112 and a second fixed segment 113 connected in sequence from a distal end to a proximal end. The outer diameter of the first fixed section 112 is smaller than the outer diameter of the second fixed section 113. The second connection portion 120 is connected to the second fixing section 113. In addition, a blocking member (not shown) is provided on the extension portion at the distal end of the second fixing segment 113 and is capable of abutting against the second fixing segment 113 to prevent the distal end from moving relative to the extension portion after the first connecting portion 110 is mounted in place.

Further, the outer wall of the first connecting portion 110 abuts against the outer wall of the inner cavity of the housing 11 to restrict the first connecting portion 110 from moving relative to the housing 11 in a direction perpendicular to the axis.

Further, the outer periphery of the second fixing section 113 is provided with a positioning portion 114. The positioning portion 114 is configured to align and abut with a positioning groove in an inner cavity (i.e., an inner cavity of an extension portion) of the housing 11, so that the first connecting portion 110 is placed to rotate relative to the housing 11, which is beneficial to further improving the mounting stability of the first connecting portion 110 and the housing 11.

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

1. A mounting fixture, comprising:

a first connecting portion surrounding to form a first through hole for insertion of the bending piece;

a second connecting part, the far end of the second connecting part is connected with the near end of the first connecting part, the near end of the second connecting part is provided with a second through hole for the pull rope to pass through,

wherein the axis of the first through hole is not coincident with the axis of the second through hole.

2. The mounting fixture of claim 1, wherein the first connection portion comprises a first fixed section and a second fixed section connected in sequence from the distal end to the proximal end, the first fixed section having an outer diameter smaller than an outer diameter of the second fixed section, the second connection portion being connected to the second fixed section.

3. The mounting fixture of claim 2, wherein the second fixed section has a positioning portion at an outer periphery thereof for aligning and abutting with a positioning groove of the housing inner cavity.

4. The mounting fixture of claim 1, wherein an axis of the first through hole is parallel to an axis of the second through hole.

5. The mounting fixture of claim 1, wherein the number of first through holes is one and the number of second through holes is two; or alternatively, the first and second heat exchangers may be,

the number of the first through holes is one, and the number of the second through holes is four.

6. The mounting fixture of claim 1, wherein the first connection portion is axially projected as a ring and the second connection portion is axially projected as a semicircle.

7. The mounting fixture of claim 1, wherein an inner diameter of the first through hole is smaller than an outer diameter of the flexure; and/or the number of the groups of groups,

the inner diameter of the second through hole is larger than the outer diameter of the pull rope.

8. A control handle comprising a housing, a control member, and a mounting fixture as claimed in any one of claims 1 to 7, wherein a distal end of the housing is connected to the second connection portion and is adapted to connect to a flexure member, and wherein the control member is partially rotatably connected to the housing and is adapted to control movement and rotation of the flexure member.

9. The control handle of claim 8, wherein the housing is provided with an inner cavity, and wherein an outer wall of the first connection portion abuts an inner wall of the inner cavity.

10. A flexible endoscope comprising, in order from a distal end to a proximal end, a nose piece, a bending piece, and a control handle according to any one of claims 8 to 9.