Integrated Flexible Endoscopic Surgery Device

Abstract

The present invention discloses an integrated flexible endoscope surgical device, which relates to the technical field of surgical instruments. The integrated flexible endoscope surgical device includes an endoscope following system, a replaceable surgical tool system, and a bending control system. The endoscope following system consists of a host and an endoscope connected thereto. The replaceable surgical tool system includes ear forceps, a suction device, and an ablation tube, and the replaceable surgical tool system has a flexible performance. The size and parameter settings of the integrated flexible endoscope surgical device match the structural characteristics of the bony cavities of the middle ear, external ear, and nasal sinuses, and can be used in otoscopic surgery and endoscopic sinus surgery scenarios, enabling the front end of the endoscope system to be freely bent with controllable curvature and variable stiffness, and being able to convert to a higher stiffness after bending to maintain stability. In the integrated endoscope device, the integrated instruments do not occupy the surgical channel and can also cooperate with independent surgical instruments for "third-hand" operations.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instruments, and specifically to an integrated bendable endoscope surgical device. Background Art

[0002] Endoscopes are important tools for medical examinations and surgical operations, such as otoscopes, nasal endoscopes, etc. At present, otoscope and nasal endoscope surgeries have become conventional methods for middle ear, nasal cavity, paranasal sinus, and partial skull base surgeries, with broad development prospects and application potential. However, at the present stage, the otorhinolaryngoscopes used in surgeries are all rigid endoscopes and cannot be bent. The middle ear cavity and the nasal cavity and paranasal sinus structures are irregular, and the lenses and instruments of the rigid endoscopes are blocked by the nasal concha, the lateral wall of the paranasal sinus, or the external auditory canal and the tympanic bone wall, and cannot directly reach the lesion location deep in the side of the surgical field. Therefore, it is usually necessary to remove the bone that blocks the lateral visual field before observing and treating the lesion base in depth, and this process will damage many originally normal anatomical structures. On the other hand, when the operator is operating, the hands hold the endoscope and surgical instruments respectively and extend them into the surgical cavity. Due to the narrow bony cavities of the ear and nose, the endoscope and the instrument often touch each other in the limited space, and their mutual acting forces will affect the surgical operation. Although existing flexible endoscopes such as fiber laryngoscopes can also be made with a smaller outer diameter, the stiffness and stability of their front ends are insufficient, and they can only be used in soft tissue cavities and are not suitable for otorhinolaryngology surgeries; the integrated instrument channel can only be a slender flexible channel and cannot perform operations that require stiffness and force conduction, and the outer diameters of flexible endoscopes with instrument channels are all relatively thick and cannot adapt to narrow cavities.

[0003] Publication No. CN117598647A discloses a controllable bendable variable-stiffness puncture endoscope instrument and a control method, in which a driving unit drives the first circular pipe part to axially move relative to the second circular pipe part to drive the opposed cut groove concentric joint to bend unidirectionally. This invention can solve the technical problem that it is difficult to operate the endoscope instrument flexibly in a narrow and bendable natural human cavity, and can increase the stiffness in the set bending state, with a simple structure and convenient operation, and has broad application prospects in medical operations in a narrow space.

[0004] However, as shown in the above technology, this technology drives the opposed cut groove concentric joint to bend unidirectionally by setting two inner and outer circular pipe parts and driving the first circular pipe part to axially move relative to the second circular pipe part, and only the unidirectional bending and direction change of the second circular pipe part can be realized. In actual operation, bending in different directions is also required to extend into cavities in different directions, and pushing and insertion are also required. Therefore, it is necessary to hold the entire device for turning and pushing operations, and manual operations are not precise enough and are prone to jitter, which also increases the operation difficulty to a certain extent.

[0005] Therefore, there is an urgent clinical need for a small-scale surgical endoscope system that integrates instruments and endoscopes, can be adaptively bent, can be stably turned to different directions, and can be axially pushed in, for surgeries in narrow bony cavities, to improve surgical efficiency, reduce additional trauma caused by exposing the surgical field, and improve the minimally invasive nature of endoscopic surgeries. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides an integrated bendable endoscope surgical device, which solves the problems of the prior art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: an integrated bendable endoscope surgical device, including an endoscope follow-up system, a replaceable surgical tool system, and a bending control system. The endoscope follow-up system consists of a host and an endoscope connected thereto. The replaceable surgical tool system includes an ear forceps, a suction device, and an ablation tube, and the replaceable surgical tool system has bendable performance. The bending control system includes a steering sleeve and an axial drive seat for driving the axial movement of the steering sleeve. The steering sleeve is used to penetrate the endoscope and the replaceable surgical tool system. The axial drive seat is also provided with a steering drive mechanism for installing the steering sleeve and driving the steering sleeve to bend and rotate. The steering sleeve has toughness, and a plurality of notches are arranged side by side on the side of the end of the steering sleeve away from the steering drive mechanism. The steering drive mechanism deforms the notch part by pushing and pulling the end of the steering sleeve to bend the steering sleeve;

[0008] The steering drive mechanism includes a pair of brackets. The steering sleeve rotates through the pair of brackets. An idler wheel is axially slidably sleeved outside the steering sleeve and between the pair of brackets. A resilient ejector rod is fixed between the part of the idler wheel extending into the steering sleeve and the inner wall of the bent end of the steering sleeve. By rotating the idler wheel, the steering sleeve is driven to rotate, and by axially sliding the idler wheel, the resilient ejector rod pushes and pulls the end of the steering sleeve to bend the end of the steering sleeve.

[0009] Preferably, a limit sleeve is rotatably penetrated and fixed between the pair of brackets, and the limit sleeve is fixedly sleeved outside the steering sleeve. A sliding key is arranged inside the idler wheel and penetrates the limit sleeve and the steering sleeve, and one end of the resilient ejector rod is fixed to the sliding key. Through grooves adapted to the sliding key are provided on the surfaces of the limit sleeve and the steering sleeve to limit the sliding range of the idler wheel.

[0010] Preferably, the axial drive seat includes a base. The top of the base is rotatably connected to a lead screw through a bearing, and the lead screw is parallel to the axis of the steering sleeve. A moving seat is threadedly connected to the outside of the lead screw, and a pair of brackets are fixedly connected to the top of the moving seat. One end of the lead screw extends outside the base and is fixedly connected to a rotary cap. A catheter for axially guiding the steering sleeve is also provided on the top of the base away from the rotary cap end.

[0011] Preferably, a plurality of balls are rotatably connected to the bottom of the moving seat, and the moving seat is in rolling connection with the bottom inner surface of the base through the balls.

[0012] Preferably, when the dial is located at the middle position inside a pair of brackets, the steering sleeve is in a straight state, and springs for restricting the dial to be centered are arranged on both sides of the dial. A positioning structure for elastically pressing the dial to fix the position of the dial is arranged on the top of the moving seat. The two ends of the spring respectively abut against the dial and the bracket, and the specifications of the two side springs are the same to make the dial centered.

[0013] Preferably, the positioning structure is an elastic metal sheet. One end of the elastic metal sheet is clamped to the top of the moving seat, and an anti-slip rubber pad is pasted on the top of the elastic metal sheet. An anti-slip structure is arranged on the surface of the dial. The elastic metal sheet drives the anti-slip rubber pad to elastically press the surface of the dial. A limiting structure for restricting the position of the elastic metal sheet is arranged on the side surface of the moving seat.

[0014] Preferably, the limiting structure includes two rows of grooves opened on the side surface of the moving seat. The other end of the elastic metal sheet is bent downward and arched. When the arched parts of the elastic metal sheet are respectively clamped in the two rows of grooves, the elastic metal sheet and the anti-slip rubber pad respectively keep pressing the dial and separating from the dial.

[0015] Preferably, a guiding hopper is fixedly sleeved at one end of the steering sleeve close to the steering driving mechanism. The guiding hopper is used for guiding the endoscope and the replaceable surgical tool system to be inserted into the steering sleeve. A locking member extending into the steering sleeve is arranged on the guiding hopper. The locking member is operated by pressing and rotating to quickly lock the endoscope, so that the endoscope and the steering sleeve move synchronously. The middle part of the guiding hopper is flatly arranged, so that the replaceable surgical tool system and the endoscope are inserted in a vertically offset manner, and the locking member presses and locks the lower-layer endoscope.

[0016] Preferably, the locking member includes a locking tube fixed to the guiding hopper. A metal block is axially slidably arranged inside the locking tube. One end of the metal block is connected with a damping rubber block. The other end of the metal block is fixedly connected with a pressing rod. A magnetic attraction cover is threadedly sleeved outside the locking tube. The magnetic attraction cover is used for magnetically attracting the metal block to separate from the steering sleeve. One end of the pressing rod extends outside the magnetic attraction cover and is fixedly connected with a pressing cover. A positioning shaft radially penetrates through the inside of the metal block. Two symmetrically arranged positioning grooves are axially opened on both sides of the inner wall of the locking tube. The positioning groove is composed of an axially distributed long groove and multiple rows of annular grooves communicated with the side surface thereof. When the positioning shaft is located in the long groove, the metal block can axially slide. When the positioning shaft is located in the annular groove, the metal block cannot axially slide.

[0017] Preferably, the replaceable surgical tool system includes an ear forceps, a suction device, and an ablation tube. The ear forceps includes a fixed handle and a rotating handle that are rotatably connected to each other. One end of each of the fixed handle and the rotating handle is a ring for inserting a finger. The other end of the fixed handle is fixedly connected to an elastic strip, and the other end of the elastic strip is fixedly connected to a fixed jaw. The top of the fixed jaw is rotatably connected to a rotating jaw. An incision groove round tube is sleeved outside the elastic strip. The incision groove round tube has elasticity and bends through the surface incision groove. The two ends of the incision groove round tube are respectively connected to the rotating jaw and the rotating handle. By pinching the rotating handle and using the incision groove round tube to transmit the thrust, the rotating jaw rotates and closes to the fixed jaw.

[0018] The present invention provides an integrated bendable endoscope surgical device. Compared with the prior art, it has the following beneficial effects:

[0019] 1. For this integrated bendable endoscope surgical device, the axial drive seat can be stably installed by additionally setting a bracket without manual holding operation. The axial drive seat can push the axial telescopic movement of the deflecting sleeve through rotation. The steering drive mechanism on the axial drive seat can achieve the bending and steering effects of the deflecting sleeve through the operations of rotation and sliding the dial, enabling the deflecting sleeve to have 6 degrees of freedom. Moreover, multiple operating structures are close to each other, allowing single-handed holding and the fingers to perform different degrees of freedom operations separately and simultaneously. The free hand can operate the endoscope. It has a high structural integration degree, more flexible steering, and is convenient for more flexible movement in the body cavity. The size and parameter settings of the device match the bony cavity structure characteristics of the external and middle ear and the nasal sinuses, and can be used in otoscopic surgery and nasal endoscopic surgery scenarios, enabling the front end of the endoscope system to be freely bent with controllable curvature and variable stiffness, and maintaining stability with higher stiffness after bending. In the integrated endoscope device, the integrated instruments do not occupy the surgical channel and can also cooperate with independent surgical instruments (such as an endoscopic integrated aspirator cooperating with a biting forceps) for "three-handed" operations.

[0020] 2. For this integrated bendable endoscope surgical device, through the thrust action of the two side springs, the dial can be in the middle position, and thus the deflecting sleeve can be kept in a straight state in the natural state without manual straightening, which is also convenient for insertion in the body.

[0021] 3. For this integrated bendable endoscope surgical device, by setting an elastic metal sheet and using its elasticity to press the anti-slip structure on the surface of the dial, the position of the dial can be restricted, thereby offsetting the elastic force of the spring and maintaining the bending degree of the deflecting sleeve. It can affect the bending degree of the deflecting sleeve when inserting the endoscope, with good maintenance effect and facilitating the smooth bending and insertion of the endoscope. The setting of the two rows of grooves can limit the elastic metal sheet to two states of being pressed or released, and the structure is simple and practical.

[0022] 4. For the integrated flexible endoscope surgical device, the flared opening of the guiding funnel is provided to facilitate the rapid alignment and insertion of the endoscope into the deflecting sleeve. The locking member on the guiding funnel can quickly lock the endoscope when the deflecting sleeve is pushed, enabling the deflecting sleeve to drive the endoscope to move synchronously when pushed, maintaining a continuous endoscopic effect without the need for separate hand-held operations. Moreover, the cooperation of the positioning groove and the positioning shaft can achieve the pressing and locking of the endoscope through simple pressing and turning operations. When rotating to unlock, the magnetic attraction effect can be utilized to automatically reset the metal block, making it convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic diagram of the bending control system of the present invention;

[0025] Figure 3 is a schematic diagram of the bottom ball of the moving seat of the present invention;

[0026] Figure 4 is a sectional schematic diagram of the steering drive mechanism of the present invention;

[0027] Figure 5 is a sectional schematic diagram of the moving seat, elastic metal sheet and dial of the present invention;

[0028] Figure 6 is an exploded view of the locking member of the present invention;

[0029] Figure 7 is a sectional schematic diagram of the locking tube of the present invention;

[0030] Figure 8 is a schematic diagram of the guiding funnel and the locking member of the present invention;

[0031] Figure 9 is a schematic diagram of the structure of the ear forceps of the present invention.

[0032] In the figure: 1 - deflecting sleeve, 11 - notch;

[0033] 2 - axial drive seat, 21 - base, 22 - lead screw, 23 - moving seat, 24 - nut, 25 - ball, 26 - groove, 27 - catheter;

[0034] 3 - steering drive mechanism, 31 - bracket, 32 - dial, 33 - elastic ejector rod, 34 - limiting sleeve, 35 - sliding key, 36 - through groove, 37 - spring, 38 - elastic metal sheet, 39 - anti-slip rubber pad, 310 - anti-slip structure;

[0035] 4 - guiding funnel;

[0036] 5 - Locking member, 51 - Locking tube, 52 - Metal block, 53 - Damping rubber block, 54 - Pressing rod, 55 - Magnetic cover, 56 - Positioning shaft, 57 - Positioning groove, 571 - Long groove, 572 - Ring groove;

[0037] 6 - Suction device;

[0038] 7 - Main body;

[0039] 8 - Endoscope;

[0040] 9 - Ear forceps; 91 - Fixed handle, 92 - Rotating handle, 93 - Elastic strip, 94 - Fixed jaw, 95 - Rotating jaw, 96 - Slotted round tube. Specific implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] The present invention provides four technical solutions:

[0043] Figures 1-4 The first implementation mode is shown: an integrated bendable endoscopic surgical device, including an endoscope follow-up system, a replaceable surgical tool system, and a bending control system. The endoscope follow-up system is composed of the main body 7 and the connected endoscope 8. The replaceable surgical tool system includes ear forceps, a suction device, and an ablation tube (illustrated by the suction device in the figure), and the replaceable surgical tool system has bendable performance. For example, the pipelines of the ear forceps, the suction device, and the ablation tube are made of ductile tubes, and the driving of the ear forceps is controlled by means such as wire pulling to control the opening and closing of the jaw end. The bending control system includes a steering sleeve 1 and an axial drive seat 2 for driving the axial movement of the steering sleeve 1. A smooth silicone sleeve can be provided outside the bending end of the steering sleeve 1 to replace the relatively hard steering sleeve 1 from directly rubbing against the internal tissues. The steering sleeve 1 is used to penetrate the endoscope 8 and the replaceable surgical tool system. The axial drive seat 2 is also provided with a steering drive mechanism 3 for installing the steering sleeve 1 and driving the bending and rotation of the steering sleeve 1. The steering sleeve 1 has toughness, and a plurality of notches 11 are arranged side by side on the side of the end of the steering sleeve 1 far from the steering drive mechanism 3. The steering drive mechanism 3 bends the steering sleeve 1 by pushing and pulling the end of the steering sleeve 1 to deform a part of the notches 11;

[0044] The axial drive seat 2 includes a base 21. A lead screw 22 is rotatably connected to the top of the base 21 through a bearing, and the axis of the lead screw 22 is parallel to the axis of the steering sleeve 1. A moving seat 23 is threadedly connected to the outside of the lead screw 22, and a pair of brackets 31 are fixedly connected to the top of the moving seat 23. A plurality of balls 25 are rotatably connected to the bottom of the moving seat 23, and the moving seat 23 is in rolling connection with the bottom inner surface of the base 21 through the balls 25. One end of the lead screw 22 extends outside the base 21 and is fixedly connected with a cap 24. A conduit 27 for axially guiding the steering sleeve 1 is further provided at the top of the base 21 away from the cap 24.

[0045] The steering drive mechanism 3 includes a pair of brackets 31. The steering sleeve 1 rotatably penetrates through the pair of brackets 31. An idler wheel 32 is axially slidably sleeved outside the steering sleeve 1 and between the pair of brackets 31. An elastic ejector rod 33 is fixed between the part of the idler wheel 32 extending into the steering sleeve 1 and the inner wall of the bent end of the steering sleeve 1. The elastic ejector rod 33 has a supporting ability. By rotating the idler wheel 32, the steering sleeve 1 can be driven to rotate, and by axially sliding the idler wheel 32, the elastic ejector rod 33 can push and pull the end of the steering sleeve 1 to bend the end of the steering sleeve 1.

[0046] A limit sleeve 34 is rotatably penetrated through between the pair of brackets 31, and the limit sleeve 34 is fixedly sleeved outside the steering sleeve 1. A sliding key 35 penetrating through the limit sleeve 34 and the steering sleeve 1 is arranged on the inner side of the idler wheel 32, and one end of the elastic ejector rod 33 is fixed to the sliding key 35. Through grooves 36 adapted to the sliding key 35 are formed on the surfaces of the limit sleeve 34 and the steering sleeve 1, and the sliding range of the idler wheel 32 is limited through the through grooves 36.

[0047] The axial drive seat 2 can be stably installed by additionally arranging brackets without manual operation. The axial drive seat 2 can push the axial telescopic movement of the steering sleeve 1 in a rotational manner. The steering drive mechanism 3 on the axial drive seat 2 can achieve the effects of bending and steering the steering sleeve 1 through the operations of rotating and sliding the idler wheel 32, enabling the steering sleeve 1 to have six degrees of freedom (the six degrees of freedom refer to telescoping, inner and outer bending, clockwise and counterclockwise rotation). And multiple operating structures are close to each other, and can be held with one hand and different degrees of freedom can be respectively and simultaneously operated with fingers. The free hand can operate the endoscope 8. The structure has a high integration degree and is more flexible and convenient to steer, facilitating more flexible movement in the body cavity.

[0048] Figure 2 and Figure 4The second embodiment is shown. The main difference from the first embodiment is that when the dial wheel 32 is located at the middle position inside a pair of brackets 31, the deflecting sleeve 1 is in a straightened state, and springs 37 for restricting the dial wheel 32 to be centered are arranged on both sides of the dial wheel 32. A positioning structure for elastically pressing the dial wheel 32 to fix its position is provided at the top of the moving seat 23. Both ends of the spring 37 abut against the dial wheel 32 and the bracket 31 respectively, and the specifications of the springs 37 on both sides are the same to make the dial wheel 32 centered.

[0049] Due to the thrust of the springs 37 on both sides, the dial wheel 32 can be in the middle position, and thus the deflecting sleeve 1 can be kept in a straightened state in the natural state without manual straightening, which is also convenient for insertion in the body.

[0050] Figure 5 The third embodiment is shown. The main difference from the second embodiment is that the positioning structure is an elastic metal sheet 38. One end of the elastic metal sheet 38 is clamped to the top of the moving seat 23, and an anti-slip rubber pad 39 is pasted on the top of the elastic metal sheet 38. An anti-slip structure 310 is arranged on the surface of the dial wheel 32. The anti-slip structure 310 is anti-slip bumps or can be a structure such as lines that can increase the friction with the anti-slip rubber pad 39. The elastic metal sheet 38 drives the anti-slip rubber pad 39 to elastically press the surface of the dial wheel 32, and a limiting structure for restricting the position of the elastic metal sheet 38 is arranged on the side surface of the moving seat 23.

[0051] The limiting structure includes two rows of grooves 26 opened on the side surface of the moving seat 23. The other end of the elastic metal sheet 38 is bent downward and bent into an arch shape. When the arch parts of the elastic metal sheet 38 are respectively clamped in the two rows of grooves 26, the elastic metal sheet 38 and the anti-slip rubber pad 39 are respectively kept pressing the dial wheel 32 and separated from the dial wheel 32.

[0052] By arranging the elastic metal sheet 38 and using its elasticity to press the anti-slip structure 310 on the surface of the dial wheel 32, the position of the dial wheel 32 can be restricted, and thus the elastic force of the spring 37 can be offset, and the bending degree of the deflecting sleeve 1 can be maintained. When inserting the endoscope 8, it can affect the bending degree of the deflecting sleeve 1, and the maintaining effect is good, which is convenient for the endoscope 8 to bend and insert smoothly. The arrangement of the two rows of grooves 26 can limit the elastic metal sheet 38 in two states of being pressed or released, and the structure is simple and practical.

[0053] Figures 6-8A fourth embodiment is shown, which mainly differs from the first embodiment in that a guide bucket 4 is fixedly sleeved on one end of the redirecting sleeve 1 close to the steering drive mechanism 3, and the guide bucket 4 is used to guide the endoscope 8 and the replaceable surgical tool system to be inserted into the redirecting sleeve 1. A locking piece 5 extending into the redirecting sleeve 1 is provided on the guide bucket 4, and the locking piece 5 is operated by pressing and rotating to quickly lock the endoscope 8, so that the endoscope 8 and the redirecting sleeve 1 move with it. The middle part of the guide bucket 4 is flatly arranged, so that the replaceable surgical tool system and the endoscope 8 are inserted in an up-and-down dislocation, and the locking piece 5 presses and locks the endoscope 8 on the lower layer. The up-and-down dislocation design ensures that the locking of the endoscope 8 does not affect the movement of the replaceable surgical tool system.

[0054] The locking member 5 includes a locking tube 51 fixed on the guide bucket 4, and a metal block 52 is axially slidably arranged inside the locking tube 51, one end of the metal block 52 is connected to a damping rubber block 53, and the other end of the metal block 52 is fixedly connected to a pressure rod 54, and the external threaded sleeve of the locking tube 51 is provided with a magnetic cover 55, which is used to magnetically attract the metal block 52 to separate from the deflection sleeve 1, one end of the pressure rod 54 extends to the outside of the magnetic cover 55 and is fixedly connected to the pressure cover, a positioning shaft 56 radially penetrates the inside of the metal block 52, and positioning grooves 57 are axially symmetrically provided on both sides of the inner wall of the locking tube 51, and the positioning groove 57 is composed of an axially distributed long groove 571 and a plurality of rows of annular grooves 572 connected to the sides thereof, and the metal block 52 can slide axially when the positioning shaft 56 is located in the long groove 571, and the metal block 52 cannot slide axially when the positioning shaft 56 is located in the annular groove 572.

[0055] The bell mouth of the guide bucket 4 is set to facilitate the endoscope 8 to be quickly aligned and inserted into the redirection sleeve 1, and the locking piece 5 on the guide bucket 4 can quickly lock the endoscope 8 when the redirection sleeve 1 is pushed, so that the endoscope 8 is synchronously driven to move when the redirection sleeve 1 is pushed, and a continuous endoscope effect is maintained without the need for separate hand-held operations; and the positioning groove 57 cooperates with the positioning shaft 56 to achieve a compression and locking of the endoscope 8 by a simple pressing and rotating operation, and when the metal block 52 is automatically reset by the magnetic effect when it is rotated to unlock, which is convenient to use;

[0056] During surgery, different interchangeable surgical tool systems (e.g. Figure 9 Ear clamp 9, Figure 1 The aspirator 6 or other instruments such as the ablation tube (not shown in the figure) are inserted into the deflection sleeve 1 and guided to the designated position through the deflection sleeve 1 for surgical operation.

[0057] like Figure 9As shown in the figure, in this embodiment, the ear forceps 9 includes a fixed handle 91 and a rotating handle 92 that are rotatably connected to each other. One end of both the fixed handle 91 and the rotating handle 92 is a ring for inserting fingers. The other end of the fixed handle 91 is fixedly connected to an elastic strip 93, and the other end of the elastic strip 93 is fixedly connected to a fixed jaw 94. The top of the fixed jaw 94 is rotatably connected to a rotating jaw 95. An incision groove round tube 96 is sleeved outside the elastic strip 93. The incision groove round tube 96 is elastic and can be bent through the surface incision groove. The two ends of the incision groove round tube 96 are respectively connected to the rotating jaw 95 and the rotating handle 92. By squeezing the rotating handle 92 and using the incision groove round tube 96 to transmit the thrust, the rotating jaw 95 rotates and closes to the fixed jaw 94. By transforming the existing ear forceps, the main body is changed into an elastic and bendable structure, and the incision groove round tube 96 is used to conduct the pushing and pulling force, so that the original rigid ear forceps has flexibility and can bend together with the bending of the variable-direction sleeve 1.

[0058] At the same time, the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0059] During use, first insert the endoscope 8 into the variable-direction sleeve 1 from the guiding hopper 4 until the other end of the variable-direction sleeve 1, and use the endoscope 8 for observation. When it is necessary to bend to the side channel, the endoscope 8 and the variable-direction sleeve 1 can be locked together first. At this time, the pressing cover can be pressed, and the metal block 52 is pressed down by the pressing rod 54 to make the damping rubber block 53 press the endoscope 8 tightly. Then rotate the pressing rod 54 to make the positioning shaft 56 on the metal block 52 slide into the annular groove 572 to complete self-locking;

[0060] Then, sliding the dial 32 can push and pull the elastic ejector rod 33, and then pull or push the bending end of the variable-direction sleeve 1, so that the variable-direction sleeve 1 deforms and bends from the notch 11 position. At the same time, the dial 32 can be rotated, and the variable-direction sleeve 1 is driven to rotate by the sliding key 35, so that the end of the variable-direction sleeve 1 is aligned with the channel; at this time, the rotating cap 24 can be rotated to drive the rotation, and then drive the moving seat 23 to move, so that the upper steering drive mechanism 3 and the variable-direction sleeve 1 etc. together extend out stably and slowly. Through multi-directional cooperation, the variable-direction sleeve 1 carries the endoscope 8 and penetrates into the side channel.

[0061] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated bendable endoscopic surgical device, characterized in that: It includes an endoscope following system, a replaceable surgical tool system, and a bending control system. The endoscope following system consists of a main unit and an endoscope connected thereto. The replaceable surgical tool system includes an ear forceps, a suction device, and an ablation tube, and the replaceable surgical tool system has a bendable property. The bending control system includes a deflecting sleeve and an axial drive seat for driving the axial movement of the deflecting sleeve. The deflecting sleeve is used to penetrate into the endoscope and the replaceable surgical tool system. The axial drive seat is also provided with a steering drive mechanism for mounting the deflecting sleeve and driving the deflecting sleeve to bend and rotate. The deflecting sleeve has toughness, and a plurality of notches are arranged side by side on the side surface of one end of the deflecting sleeve away from the steering drive mechanism. The steering drive mechanism deforms a part of the notch by pushing and pulling the end of the deflecting sleeve to bend the deflecting sleeve. The steering drive mechanism includes a pair of brackets. The deflecting sleeve rotates through the pair of brackets. An idler wheel is axially slidably sleeved outside the deflecting sleeve and between the pair of brackets. A resilient ejector rod is fixed between the part of the idler wheel extending into the deflecting sleeve and the inner wall of the bent end of the deflecting sleeve. By rotating the idler wheel, the deflecting sleeve is driven to rotate, and by axially sliding the idler wheel, the resilient ejector rod pushes and pulls the end of the deflecting sleeve to bend the end of the deflecting sleeve. A limiting sleeve is rotatably penetrated through the pair of brackets, and the limiting sleeve is fixedly sleeved outside the deflecting sleeve. A sliding key penetrating through the limiting sleeve and the deflecting sleeve is arranged on the inner side of the idler wheel, and one end of the resilient ejector rod is fixed to the sliding key. Through grooves adapted to the sliding key are opened on the surfaces of the limiting sleeve and the deflecting sleeve to limit the sliding range of the idler wheel.

2. The integrated bendable endoscopic surgical device according to claim 1, wherein: The axial drive seat includes a base. A lead screw is rotatably connected to the top of the base through a bearing, and the lead screw is parallel to the axis of the deflecting sleeve. A moving seat is threadedly connected to the outside of the lead screw, and a pair of brackets are fixedly connected to the top of the moving seat. One end of the lead screw extends outside the base and is fixedly connected to a knob. A catheter for axially guiding the deflecting sleeve is also provided on the top of the base away from the knob end.

3. The integrated flexible endoscopic surgical device according to claim 2, wherein: A plurality of balls are rotatably connected to the bottom of the moving seat, and the moving seat is in rolling connection with the bottom inner surface of the base through the balls.

4. The integrated bendable endoscopic surgical device according to claim 3, wherein: When the idler wheel is located at the middle position inside the pair of brackets, the deflecting sleeve is in a straight state. Springs for restricting the idler wheel to be centered are arranged on both sides of the idler wheel. A positioning structure for elastically pressing the idler wheel to fix its position is provided on the top of the moving seat. The two ends of the spring respectively abut against the idler wheel and the bracket, and the specifications of the two side springs are the same to center the idler wheel.

5. The integrated bendable endoscopic surgical device according to claim 4, characterized in that: The positioning structure is an elastic metal sheet. One end of the elastic metal sheet is clamped to the top of the moving seat, and an anti-slip rubber pad is pasted on the top of the elastic metal sheet. An anti-slip structure is arranged on the surface of the idler wheel. The elastic metal sheet drives the anti-slip rubber pad to elastically press the surface of the idler wheel. A limiting structure for restricting the position of the elastic metal sheet is arranged on the side surface of the moving seat.

6. The integrated bendable endoscopic surgical device according to claim 5, characterized in that: The limiting structure includes two rows of grooves opened on the side surface of the moving seat. The other end of the elastic metal sheet is bent downward and arched. When the arched parts of the elastic metal sheet are respectively clamped in the two rows of grooves, the elastic metal sheet and the anti-slip rubber pad respectively keep pressing the idler wheel and disengaging from the idler wheel.

7. The integrated flexible endoscopic surgical device according to claim 1, characterized in that: One end of the deflecting sleeve close to the steering drive mechanism is fixedly sleeved with a guiding hopper for guiding the endoscope and the replaceable surgical tool system into the interior of the deflecting sleeve. A locking member extending into the deflecting sleeve is provided on the guiding hopper. The locking member is operated by pressing and rotating to quickly lock the endoscope, so that the endoscope and the deflecting sleeve move synchronously. The middle part of the guiding hopper is flatly arranged, so that the replaceable surgical tool system and the endoscope are inserted in a vertically offset manner, and the locking member presses and locks the lower-layer endoscope.

8. The integrated bendable endoscopic surgical device according to claim 7, wherein: The locking member includes a locking tube fixed to the guiding hopper. A metal block is axially slidably arranged inside the locking tube. One end of the metal block is connected with a damping rubber block, and the other end of the metal block is fixedly connected with a pressing rod. A magnetic attraction cover is threadedly sleeved on the outside of the locking tube for magnetically attracting the metal block to separate from the deflecting sleeve. One end of the pressing rod extends outside the magnetic attraction cover and is fixedly connected with a pressing cover. A positioning shaft radially penetrates through the inside of the metal block. Positioning grooves are symmetrically opened on both sides of the inner wall of the locking tube. The positioning groove is composed of an axially distributed long groove and multiple columns of annular grooves communicated with its side surface. When the positioning shaft is located in the long groove, the metal block can axially slide. When the positioning shaft is located in the annular groove, the metal block cannot axially slide.

9. The integrated bendable endoscopic surgical device according to claim 1, wherein: The replaceable surgical tool system includes an ear forceps, a suction device and an ablation tube. The ear forceps includes a fixed handle and a rotating handle which are rotatably connected to each other. One end of each of the fixed handle and the rotating handle is a ring for a finger to insert. The other end of the fixed handle is fixedly connected with an elastic strip, and the other end of the elastic strip is fixedly connected with a fixed jaw. The top of the fixed jaw is rotatably connected with a rotating jaw. An incision groove round tube is sleeved outside the elastic strip. The incision groove round tube has elasticity and is bent through the surface incision groove. The two ends of the incision groove round tube are respectively connected with the rotating jaw and the rotating handle. By pinching the rotating handle and using the incision groove round tube to transmit the thrust, the rotating jaw rotates and closes to the fixed jaw.

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