WO2023115851A1

WO2023115851A1 - Disposable flexible endoscope

Info

Publication number: WO2023115851A1
Application number: PCT/CN2022/099591
Authority: WO
Inventors: 李宏博; 安舟; 张家智; 汪路明; 夏棋强; 李卫平; 王卫东; 王桃红
Original assignee: 浙江优亿医疗器械股份有限公司
Priority date: 2021-12-24
Filing date: 2022-06-17
Publication date: 2023-06-29
Also published as: CN217365782U

Abstract

A disposable flexible endoscope, comprising an operation segment (1) at a proximal end, and an insertion segment (2) at a distal end inserted into a human body. A bendable portion is provided at the front end of the insertion segment (2). The operation segment (2) comprises a housing (3), and a control portion (5) for controlling the bending and steering of a head (4) of the insertion portion. The control portion (5) comprises a rotating disc (51) provided and positioned inside the housing (3), and a locking assembly connected to the rotating disc (51) and capable of locking the rotation of the rotating disc (51). The rotating disc (51) is connected to the bendable portion. The locking assembly comprises a locking member (52), and a flexible rubber member (53) positioned inside the rotating disc (51). The locking member (52) drives the flexible rubber member (53) to be in friction fit with the rotating disc (51), so as to restrain the rotation of the rotating disc (51), thereby limiting the bending of the head of the insertion segment (2).

Description

Disposable soft mirror

technical field

The invention relates to the technical field of medical instruments.

Background technique

Routine endoscopy, or where visual inspection of organs or the inside of the human body is required, typically uses a complex system of lenses to transmit images from the distal end of the endoscope to the observer. Rigid endoscopes typically use relay lens systems; flexible endoscopes typically use fiber optic bundles or objective lens systems. Conventional rigid and flexible endoscopes, lenses or fiber optic systems are relatively expensive and are reused many times. Therefore, it must be strictly sterilized and disinfected after each use.

In order to avoid damage to the endoscope by disinfection and prevent risks caused by incomplete disinfection, the invention provides a disposable soft mirror. However, when the disposable soft mirror operates the snake bone, the doctor needs to apply a force with his hands all the time to keep the snake bone at an angle, so as to observe and operate a specific position. In order to meet the characteristics of lightness and portability of the disposable soft mirror, the disposable soft mirror designed by the present invention adopts a light and ingenious design, so that the angle of the snake bone is fixed, which brings convenience to the doctor.

technical problem

In order to solve the problems in the prior art, the present invention provides a disposable soft mirror with convenient operation and simple structure.

In order to achieve the above object, the present invention adopts the following technical solutions: a disposable soft mirror, including a proximal operating section and a distal insertion section for inserting into the human body, the insertion section has a bendable part at its front end, and the operation A segment, which includes a housing and a control part that controls the bending and steering of the head of the insertion part, the control part includes a turntable arranged and positioned inside the casing, and a rotating locking assembly that is connected to the turntable and can be used to lock the turntable , the turntable is connected to the bending part, the locking assembly includes a locking member and a soft rubber part positioned inside the turntable, the locking part drives the soft rubber part to frictionally fit with the turntable, Therefore, the rotation of the turntable is restricted, thereby restricting the bending of the head of the insertion section.

As a preferred solution, the soft rubber parts are made of soft materials.

As a preferred solution, the insertion part is provided with a rotating part, and the insertion part is connected to the lower end of the housing through the rotating part.

As a preferred solution, the locking member includes a disc arranged outside the soft rubber part and a knob pivotally connected with the disc, the inner side of the knob has a locking protrusion, and the locking protrusion abut against the disc, so that the drive disc is pressed on the soft rubber part.

As a preferred solution, the disc has a left side arc bar and a right side arc bar oppositely arranged, and the included angle between the left side arc bar, the right side arc bar and the knob is along the clockwise rotation direction of the knob Gradually increase.

As a preferred solution, the turntable connection is provided with a control swing arm for controlling the rotation of the turntable.

As a preferred solution, the disc also has a central bracket connected to the knob, one end of the left side arc bar and the right side arc bar are the starting end, and the other end is the end, and the starting end is from the The center bracket is drawn out, and protrudes around the center bracket to form the end; the starting ends of the left side arc bar and the right side arc bar are arranged on the opposite side of the center bracket, and the end of the left side arc bar is connected to the right side arc A gap is formed between the starting ends of the bars; correspondingly, the inner side of the knob is provided with a left locking protrusion and a right locking protrusion which are rotationally matched with the left arc bar and the right arc bar respectively; , prompting the left locking protrusion to cooperate with the left arc-shaped bar, and the right locking protrusion to cooperate with the right arc-shaped bar, so that the rotating disk has a locked/unlocked state.

As a preferred solution, the widths of the cross-sections of the left and right curved bars gradually increase along the clockwise rotation direction of the knob.

As a preferred solution, the starting end is provided with a first limiting protrusion, the end is provided with a second limiting protrusion, and the locking protrusion is provided with the first limiting protrusion, A limit card slot matched with the second limit protrusion; the limit card slot cooperates with the first limit protrusion and the second limit protrusion to limit the rotation of the knob.

As a preferred solution, at least part of the end is recessed to form a recess, and the second limiting protrusion is arranged at the recess.

Compared with the prior art, the present invention has the following advantages: 1. Using the locking part, the soft rubber part is frictionally matched with the turntable, thereby locking the turntable and preventing the turntable from rotating, so that the head end of the insertion part can be restricted from swinging; 2. Control The structure of the part is simple, which better meets the requirements of light and portable disposable soft mirror; 3. There is a locking protrusion on the knob to better cooperate with the disc, and the driving soft rubber part is frictionally matched with the turntable; 4. The soft rubber part The use of soft materials can effectively achieve the function of frictionally matching with the turntable to achieve locking; 5. The limit groove on the locking protrusion cooperates with the first limit protrusion to realize positioning while avoiding the shaking of the knob; The position groove cooperates with the second limit protrusion to better achieve positioning and stability, and to avoid the rotation of the knob under the action of external force; 6. The second limit protrusion is arranged in the concave part, which is convenient for the limit groove Turning to this position can cooperate with the second limit protrusion; 7. The locking part and the soft rubber part are easy to disassemble.

Description of drawings

Fig. 1 is a schematic diagram 1 of the overall structure of the present invention.

Fig. 2 is a schematic diagram 2 of the structure of the operating part of the present invention.

Fig. 3 is a schematic diagram of the structure of the control part of the present invention without locking pieces.

Fig. 4 is a structural schematic diagram of the knob.

Fig. 5 is a schematic diagram of the structure of the disc.

Fig. 6 is a schematic diagram of the side view structure of the disc.

Fig. 7 is a schematic diagram of the structure of the rotating member.

Among them, 1. Operation section; 2. Insertion section; 3. Housing; 4. Head of insertion section; 5. Control section; 51. Turntable; 52. Locking member; 521. Disc; Soft rubber parts; 6. Rotating parts; 7. Locking protrusions; 8. Left arc bar; 9. Right arc bar; 10. Control swing arm; 11. Center bracket; 12. Starting end; 13. end; 14, notch; 15, first limit protrusion; 16, second limit protrusion; 17, limit card slot; 18, depression; 19, inner core; 20, circumferential groove; 21, limit pole.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientations or positional relationships indicated by "bottom", "inner", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying that a referenced method or element must have a particular orientation, be constructed, and operate in a particular orientation.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation" and "holding" should be understood in a broad sense, for example, it can be fixed connection or It is a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the communication between the inner sections of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figures 1-6, the embodiment of the present invention provides a disposable soft mirror, which includes a proximal operating section 1 and a distal insertion section 2 for inserting into the human body. Bending part (the structure of the bendable part is an existing design), the head of the insertion section 2 bends at a certain angle under the control of the control part 5 through the bendable part; the operation section 1 includes a housing 3 and The control part 5 that controls the bending and steering of the insertion part head 4, the control part 5 includes a turntable 51 arranged and positioned inside the housing 3 and a locking assembly that is connected to the turntable 51 and can be used to lock the turntable 51 , the turntable 51 is connected to the bending part through a cable or the like (this is the prior art), the locking assembly includes a locking member 52 and a soft rubber part 53 positioned inside the turntable 51, the The locking part 52 drives the soft rubber part 53 to frictionally fit with the turntable 51, thereby restricting the rotation of the turntable 51, thereby restricting the bending of the head of the insertion section 2; when the soft rubber part 53 is not frictionally fitted with the turntable 51 , the turntable 51 is rotatable, and the head of the insertion section 2 is rotatable.

Preferably, in order to ensure the friction effect between the soft rubber part 53 and the rotating disk, the soft rubber part 53 is made of soft materials.

Preferably, as shown in Figure 1 and Figure 3, in order to ensure that the soft mirror observes a larger visual range, the insertion part is provided with a rotating member 6 that can be used to control the circumferential rotation of the insertion part, and the insertion part passes through the The rotating part 6 is connected to the lower end of the housing 3; specifically, as shown in Figure 7, the rotating part 6 includes an inner core 19, one end of the inner core 19 is fixedly connected to the bendable part, and the other One end is connected to the lower end of the housing, the outer ring of the inner core 19 is provided with a circumferential groove 20, and the lower end of the housing is provided with a limit rod 21 that cooperates with the circumferential groove, so that the inner core cannot move up and down and rotate Part 6 drives the inner core to rotate circumferentially, thereby driving the insertion part to rotate.

Preferably, as shown in FIG. 1 and FIG. 3 , the turntable 51 is connected with a control swing arm 10 for controlling the rotation of the turntable 51 .

In some specific embodiments, as shown in FIG. 2 and FIG. 3 , the locking member 52 includes a disc 521 arranged outside the soft rubber part 53 (the soft rubber part 53 and the disc 521 are embedded , the soft rubber part 53 is connected to the turntable 51) and the knob 522 pivotally connected to the disc 521, the inner side of the knob 522 has a locking protrusion 7, and the locking protrusion 7 is connected to the The aforementioned disk 521 abuts, thereby driving the disk 521 to be pressed on the soft rubber part 53, increasing the friction between the soft rubber part 53 and the turntable 51, thereby constraining the rotation of the turntable 51.

More specifically, as shown in FIG. 4 and FIG. 6 , in order to stabilize the frictional locking function between the soft rubber part 53 and the turntable 51, the disk 521 has a left side arc bar 8 and a right side arc bar 8 oppositely arranged. shape bar 9, the angle between the left side arc bar 8, the right side arc bar 9 and the knob 522 gradually increases along the clockwise direction of the knob 522; The force exerted by the side arc strip 8 and the right arc strip 9 increases gradually, thereby increasing the friction between the soft rubber piece 53 and the turntable 51, making the turntable 51 unable to rotate at will. The material problem of part 53 provides room for the retreat of the arc bar; turning the knob 522 counterclockwise, the force exerted by the locking protrusion 7 gradually decreases, thereby contacting the locked state of the turntable 51, so that it can adjust the position of the head end of the insertion section 2 In addition, a disc 521 is directly arranged, and the circumferential angle between the disc 521 and the knob 522 increases in the direction of clockwise rotation. It will appear that the force exerted by each part is unbalanced, resulting in the locking protrusion 7 The purpose of locking is achieved at the place, but the effect of locking is not played at other places, and it is not easy to install in this way, and the structural design of the locking member 52 will be more complicated; therefore, two arc-shaped strips are relatively designed , the force exerted by the locking protrusion 7 on the arc bar is more balanced, which ensures the locking effect.

Further, as shown in Figure 5 and Figure 6, the disc 521 also has a central bracket 11 connected to the knob 522, one end of the left arc bar 8 and the right arc bar 9 is Beginning end 12, the other end is end 13, and described starting end 12 is drawn from central support 11, and stretches out to form described end 13 around central support 11; The starting end 12 is arranged on the opposite side of the central support 11, and a gap 14 is formed between the end 13 of the left side arc bar 8 and the starting end 12 of the right side arc bar 9, that is, the starting end 12 of the left side arc bar 8 is connected to the right side. The end 13 of the side arc bar 9 and the starting end 12 of the right arc bar 9 are not connected to the end 13 of the left arc bar 8. This structural design ensures that the left arc bar 8 and the right arc bar Bar 9 can be pressed down under the action of force, and acts respectively; Correspondingly, the inner side of described knob 522 is provided with the left locking protrusion 7 that respectively rotates with the left side arc bar 8 and the right side arc bar 9. , the right locking protrusion 7; turn the knob 522 to impel the left locking protrusion 7 to cooperate with the left arc bar 8, and the right locking protrusion 7 to cooperate with the right arc bar 9, so that the rotating disc has a locking/unlocking function. state.

Preferably, as shown in FIG. 6 , the widths of the cross-sections of the left curved strip 8 and the right curved strip 9 gradually increase along the clockwise rotation direction of the knob 522 .

Preferably, as shown in Figures 4 to 6, the starting end 12 is provided with a first limiting protrusion 15, the end 13 is provided with a second limiting protrusion 16, and the locking protrusion 7 is provided with a limit card groove 17 that is compatible with the first limit protrusion 15 and the second limit protrusion 16; the limit card groove 17 is compatible with the first limit protrusion 15 and the second limit The bit protrusion 16 is limitedly fitted to limit the rotation of the knob 522 .

Preferably, as shown in FIG. 5 , since the thickness of the end 13 of the arc-shaped bar is higher than that of the starting end 12, the end 13 is at least partly recessed to form a recess 18, and the second limiting protrusion 16 is disposed at the recessed portion 18, and when the knob 522 is turned, when the locking protrusion 7 reaches the recessed portion 18, it can smoothly cooperate with the second limiting protrusion 16.

Preferably, the soft rubber part 53 is a soft rubber ring, which is arranged on the inner ring of the turntable 51 and connected with the disc 521 .

Compared with the prior art, the embodiment provided by the present invention has the following advantages: 1. Using the locking member 52, the soft rubber part 53 is frictionally fitted with the turntable 51, thereby locking the turntable 51 and preventing the turntable 51 from rotating, so that the constraint can be realized The head end of the insertion part swings; 2. The structure of the control part 5 is simple, which better satisfies the portable requirements of the disposable soft lens; The soft rubber part 53 is frictionally matched with the rotating disk 51; 4. The soft rubber part 53 is made of soft material, which can effectively achieve the function of frictionally matching with the rotating disk 51 to realize locking; A limit protrusion 15 cooperates to realize positioning while avoiding the shaking of the knob 522; at the same time, the limit groove cooperates with the second limit protrusion 16 to better achieve positioning and a stable effect, and to avoid the knob under the action of external force 522 rotation; 6. The second limiting protrusion 16 is arranged in the recessed part 18, which is convenient for the limiting groove to rotate to the place where it can cooperate with the second limiting protrusion 16; 7. The locking piece 52 and the soft rubber piece 53 Easy to assemble and disassemble.

It should be noted that the above embodiments are only representative examples of the present invention. The present invention is also capable of many variations. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the essence of the present invention shall be deemed to belong to the protection scope of the present invention.

Claims

The disposable soft mirror is characterized in that it includes a proximal operating section (1) and a distal insertion section (2) for inserting into the human body,

The insertion section (2) has a bendable part at its front end,

The operating section (1), which includes a housing (3) and a control part (5) that controls the bending and steering of the insertion part head (4), the control part (5) includes a set and is positioned on the housing ( 3) The inner turntable (51) is connected with the turntable (51) and can be used to lock the turntable (51) to rotate the locking assembly, the turntable (51) is connected to the bending part, and the locking assembly includes a locking piece (52) and the soft rubber part (53) positioned inside the turntable (51), the locking part (52) drives the soft rubber part (53) to frictionally fit with the turntable (51), so that Constraining the turntable (51) to rotate, thereby restricting the bending of the head of the insertion section (2).
The disposable soft mirror according to claim 1, characterized in that, the soft rubber part (53) is made of soft material.
The disposable soft mirror according to claim 1, characterized in that, the insertion part is provided with a rotating part, and the insertion part is connected to the lower end of the casing (3) through the rotating part.
The disposable soft mirror according to claim 1, characterized in that, the locking member (52) includes a disc (521) arranged outside the soft rubber member (53) and a disc (521) ) pivoted knob (522), the inner side of the knob (522) has a locking protrusion (7), and the locking protrusion (7) abuts against the disc (521), thereby driving Disc (521) is pressed on the soft rubber part (53).
The disposable soft mirror according to claim 4, characterized in that, the disc (521) has a left arc-shaped strip (8) and a right arc-shaped strip (9) oppositely arranged, and the left The angle between the arc bar (8), the right arc bar (9) and the knob (522) gradually increases along the clockwise rotation direction of the knob (522).
The disposable soft mirror according to claim 1, characterized in that, the turntable (51) is connected with a control swing arm (10) for controlling the rotation of the turntable (51).
The disposable soft mirror according to claim 5, characterized in that, the disc (521) also has a central support (11) connected with the knob (522), and the left curved bar (8) 1. One end of the right curved bar (9) is the starting end (12), and the other end is the end (13). The starting end (12) is drawn out from the central support (11) and extends out forming said end (13);

The starting ends (12) of the left curved bar (8) and the right curved bar (9) are arranged on opposite sides of the central support (11), and the end (13) of the left curved bar (8) is connected to the right A gap (14) is formed between the starting ends (12) of the curved strips (9);

Correspondingly, the inner side of the knob (522) is provided with a left locking protrusion (7) and a right locking protrusion respectively in rotation with the left arc bar (8) and the right arc bar (9). (7);

Turn the knob (522) to make the left locking protrusion (7) cooperate with the left arc bar (8), and the right locking protrusion (7) cooperate with the right arc bar (9), so that the rotating disc has a locking function. /unlock status.
The disposable soft mirror according to claim 5, characterized in that, the width of the cross section of the left curved strip (8) and the right curved strip (9) is along the clockwise rotation direction of the knob (522) Gradually increase.
The disposable soft mirror according to claim 7, characterized in that, the starting end (12) is provided with a first limiting protrusion (15), and the end (13) is provided with a second limiting protrusion (16), the locking protrusion (7) is provided with a limit card slot (17) matching with the first limit protrusion (15) and the second limit protrusion (16); The limiting slot (17) cooperates with the first limiting protrusion (15) and the second limiting protrusion (16) to limit the rotation of the knob (522).
The disposable soft mirror according to claim 9, characterized in that, at least part of the end (13) is recessed to form a depression (18), and the second limiting protrusion (16) is arranged on the The above-mentioned recessed part (18).