Endoscope and endoscope system

Abstract

The invention relates to the technical field of medical instruments, and provides an endoscope and an endoscope system.The endoscope comprises an operation part, an insertion part and a return mechanism. The operation part comprises an operation main body, a knob assembly and a transmission assembly; the insertion part comprises an insertion main body, a bending part and a flexible transmission part, one end of the flexible transmission part is connected with the other end of the transmission assembly, and the other end of the flexible transmission part drives the bending part to bend and stretch relative to the insertion main body; the return mechanism is used for storing and releasing resilience force; wherein in a force transmission path formed by the knob assembly, the transmission assembly and the flexible transmission part, the return mechanism is arranged in at least one position in the force transmission path. The return mechanism can complete storage and release of resilience force so as to provide force support for the switching process of the insertion main body from the bent state to the straight state, and therefore the resistance feeling of medical staff in the whole operation process is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an endoscope and an endoscope system. Background Art

[0002] Endoscopic examination is an important clinical examination and diagnosis method, usually performed using an endoscope. An endoscope usually includes a connecting portion, an operating portion, and an insertion portion that are connected in sequence. The connecting portion is used to connect to the light source emission end of the endoscope system, and the insertion portion is inserted into the patient's body for corresponding image acquisition and observation. The insertion portion includes an insertion body and a bending sub-portion, wherein the insertion body is used to be inserted into the patient's body for observation operations only, and the bending sub-portion is used to control the direction of the endoscope to facilitate entry and exit in complex cavities, and the operating portion is used to control the bending of the bending sub-portion, water and air supply, and instrument entry and exit.

[0003] However, the bending function indicators of the bending sub-section mainly include the bending angle range, sensitivity and resilience. Among them, the resilience of the bending sub-section is a key indicator for evaluating the bending function level of the endoscope, which also affects the safety level of endoscopic detection. However, due to the high integration of the insertion part and the large number of components, the internal resistance of the operating part is large, which leads to the problem that the bending part of the endoscope cannot rebound to a straight state. Summary of the invention

[0004] The object of the present invention is to provide an endoscope and an endoscope system, aiming to solve the problem that the bent portion of the endoscope cannot rebound to a straight state due to poor resilience.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] In a first aspect, an embodiment of the present application provides an endoscope, comprising:

[0007] An operating part, the operating part comprising an operating body, a knob assembly movably connected to the operating body, and a transmission assembly disposed in the operating body;

[0008] An insertion part, the insertion part includes an insertion body connected to the operating body, a bending part connected to the insertion body, and a flexible transmission member provided in the insertion body and the bending part, one end of the transmission component is connected to the knob component, and the other end is connected to one end of the flexible transmission member, and the other end of the flexible transmission member is used to drive the bending part to bend;

[0009] A restoring mechanism, the restoring mechanism being used to store and release a rebound force;

[0010] Wherein, in the force transmission path formed by the knob assembly, the transmission assembly and the flexible transmission member, the restoring mechanism is arranged at at least one place in the force transmission path.

[0011] Beneficial effects of the present invention: The working process of the endoscope provided by the present invention is as follows: the medical staff drives the transmission assembly by rotating the knob assembly on the operating body, and the transmission assembly then realizes the spatial bending of the bending part by pulling the flexible transmission part. The return mechanism is a mechanism that can store and release the rebound force, such as a shrapnel, a spring, an elastic part, etc. Therefore, in the force transmission path composed of the knob assembly, the transmission assembly, and the flexible transmission part, the return mechanism can complete the storage and release of the rebound force to provide force support for the switching process of the bending part from the bent state to the straight state, thereby reducing the resistance felt by the medical staff during the entire operation process.

[0012] In some embodiments, the return mechanism includes a first return structure, the first return structure includes a first elastic member and a first connecting member arranged on the first elastic member, the transmission assembly includes a transmission main body and a second connecting member arranged on the transmission main body, the first connecting member and the second connecting member are connected, one end of the transmission main body is connected to the knob assembly and the other end is connected to the flexible transmission member, and the extension and contraction direction of the first elastic member is the same as the transmission direction of the transmission main body, and the first connecting member moves as the first elastic member is compressed or extended.

[0013] By adopting the above technical solution, the restoring mechanism is used to provide corresponding resilience to the transmission main body of the transmission chain. Specifically, when the transmission main body drives the flexible transmission member to move, the second connecting member drives the first connecting member to move, and the first elastic member is compressed and stored by the first connecting member. Once the transmission main body stops applying force to the flexible transmission member, the first elastic member releases the resilience to provide assistance for the flexible transmission member to return to the initial position, that is, it can assist the bent portion to return from a bent state to a straight state.

[0014] In some embodiments, the first restoring structure further includes two fixing seats spaced apart along the extension and contraction direction of the first elastic member and a shaft body disposed between the two fixing seats, and the first elastic member and the first connecting member are both sleeved on the shaft body.

[0015] By adopting the above technical solution, the first elastic member is telescopically moved on the shaft between the two fixed seats, and similarly, the first connecting member is also moved on the shaft, so that the moving paths of the first elastic member and the first connecting member are limited by the fixed seat and the shaft, so as to improve the stability of the restoring mechanism in the process of providing the rebound force. In addition, the limiting structure is used to limit the first elastic member to be compressed to the limit position, that is, the limiting transmission body drives the limit position of the flexible transmission member, and finally reduces the excessive bending of the bending part.

[0016] In some embodiments, the return mechanism includes a second return structure, the second return structure includes a second elastic member and a fixed plate arranged in the operating body, one end of the second elastic member is connected to an end of the transmission assembly away from the knob body and the other end is connected to the fixed plate, and the extension direction of the second elastic member is the same as the transmission direction of the transmission assembly.

[0017] By adopting the above technical solution, the second restoring structure is used to provide corresponding resilience to the connection between the transmission assembly and the flexible transmission member. Specifically, when the transmission assembly drives the flexible transmission member to move, the transmission assembly can drive the second elastic member to stretch in the direction away from the fixed plate. At this time, the second elastic member stores force and energy. Once the transmission assembly stops applying force to the flexible transmission member, the second elastic member releases the resilience to provide assistance for the flexible transmission member to return to its initial position, that is, it can assist the insertion body to return from a bent state to a straight state.

[0018] In some embodiments, the restoring mechanism comprises a third restoring structure, the third restoring structure is provided on the flexible transmission member, and the restoring mechanism is located in the operating body and / or in the insertion body.

[0019] By adopting the above technical solution, the third restoring structure is on the flexible transmission member and is pulled together with the flexible transmission member, and the restoring mechanism stores or releases the resilience during the pulling process. In addition, the third restoring structure is arranged in the operating body and / or inserted into the body with a larger space, which is more convenient for installation and later maintenance.

[0020] In some embodiments, the third restoring structure includes a cylinder, a piston member movably connected to the cylinder, and a third elastic member, the piston member includes a piston body movably connected to the cylinder and a piston rod whose one end is connected to the piston body and the other end is passed through the cylinder to the outside, one end of the third elastic member abuts against the piston body and the other end abuts against the inner wall of the cylinder, one end of the piston rod away from the piston body is connected to the flexible transmission member, and one end of the cylinder away from the piston rod is connected to the flexible transmission member.

[0021] By adopting the above technical solution, when the piston moves telescopically in the cylinder, the piston body and the inner wall of the cylinder compress or stretch the third elastic member, so that the third elastic member stores or releases the resilience. Specifically, the same flexible transmission member is divided into two sections, one end of which is connected to the end of the cylinder away from the piston rod, and one end of the other section is connected to the piston rod, so that when the flexible transmission member is pulled, the piston body squeezes the third elastic member.

[0022] In some embodiments, the knob assembly includes a fixed shaft disposed in the operating body and at least two knob bodies sequentially sleeved on the fixed shaft along the axial direction of the fixed shaft and rotatably connected to the fixed shaft, the return mechanism includes a fourth return structure, the fourth return structure is disposed in at least one of the knob bodies, and the corresponding knob body rotates around the fixed shaft to store force for the return mechanism.

[0023] By adopting the above technical solution, each knob body rotates around a fixed axis to drive the corresponding transmission assembly to transmit, wherein the fourth return structure is arranged in one or several corresponding knob bodies, and when the corresponding knob body rotates around the axis, the return mechanism stores energy.

[0024] In some embodiments, the fourth restoring structure includes a fourth elastic member sleeved on the fixed shaft, one end of the fourth elastic member is connected to the knob body and the other end is connected to the fixed shaft.

[0025] By adopting the above technical solution, when the knob body rotates around the axis, the fourth elastic member is driven to store energy and force. Once the knob body removes the external force, the fourth elastic member assists the corresponding knob body to rotate around the axis in the opposite direction.

[0026] In some embodiments, the number of the knob bodies is two, and the knob assembly includes a first sleeve sleeved on the fixed shaft, a second sleeve sleeved on the first sleeve, and a bearing seat sleeved on the second sleeve, one of the knob bodies is connected to an end of the first sleeve away from the bearing seat, and the other knob body is connected to an end of the second sleeve away from the bearing seat, and the first sleeve and the second sleeve are respectively used to drive corresponding transmission components.

[0027] By adopting the above technical solution, one knob body rotates around the axis and drives the first sleeve to rotate, and finally transmits the torque to the corresponding transmission component, and the other knob body rotates around the axis and drives the second sleeve to rotate, and finally transmits the torque to the other transmission component.

[0028] In a second aspect, an embodiment of the present application further provides an endoscope system, comprising a display, a light source host, an image processing device, and the endoscope described above.

[0029] It can be understood that the beneficial effects of the second aspect of the present application can refer to the beneficial effects stated in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of an endoscope provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of an endoscope provided in Embodiment 1 of the present invention;

[0033] Figure 3 A schematic structural diagram of another viewing angle of the endoscope provided in the first embodiment of the present invention;

[0034] Figure 4 A structural schematic diagram of another viewing angle of the endoscope provided in the first embodiment of the present invention;

[0035] Figure 5 A cross-sectional view of an endoscope provided in Embodiment 2 of the present invention;

[0036] Figure 6 A schematic diagram of the structure of an endoscope provided in Embodiment 3 of the present invention;

[0037] Figure 7 A cross-sectional view of a return mechanism of an endoscope provided in Embodiment 3 of the present invention;

[0038] Figure 8 This is a cross-sectional view of an endoscope provided in Embodiment 4 of the present invention.

[0039] Among them, the reference numerals in the figure are:

[0040] 100. Endoscope;

[0041] 10. operating part; 11. operating body; 12. knob assembly; 13. transmission assembly; 131. transmission body; 132. second connecting member; 121. fixed shaft; 122. knob body; 123. first shaft sleeve; 124. second shaft sleeve; 125. bearing seat;

[0042] 20. Insertion part; 21. Insertion body; 22. Bending part; 23. Flexible transmission member;

[0043] 30. Restoration mechanism; 31. First restoring structure; 32. Second restoring structure; 33. Third restoring structure; 34. Fourth restoring structure; 301. First elastic member; 302. First connecting member; 303. Fixed seat; 304. Shaft; 305. Limiting structure; 306. Second elastic member; 307. Fixed plate; 308. Cylinder; 309. Piston member; 310. Third elastic member; 3091. Piston body; 3092. Piston rod; 311. Fourth elastic member. DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, 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 intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Generally, an endoscope includes a connection part, an operation part, and an insertion part. The connection part is connected to the light outlet of the endoscope system to transmit the light source to the insertion part. The operation part is for medical personnel to operate by hand and adjust the bending degree of the insertion part. The insertion part is the part inserted into the patient's body. The insertion part includes a flexible bending part that can be adjusted by the operation part and a head end connected to the bending part.

[0049] Also, a transmission mechanism such as a chain is provided in the operating part, which is connected to the knob on the operating part. When the medical staff turns the knob, the chain can be driven to pull the flexible rope of the insertion part, so that the curved part changes from a straight state to a curved state. However, in the actual operation process, there is still a very small probability that the knob and the corresponding transmission mechanism become stuck, which makes it difficult to pull the flexible rope, that is, the source of its resistance mainly comes from the operating part, which makes it difficult for the curved part of the insertion part to recover from a curved state to a straight state, or the recovery process is more difficult.

[0050] In view of this, the present application provides an endoscope, in which a restoring mechanism is added at one or several locations in the force transmission path composed of a knob assembly, a transmission assembly and a flexible transmission member. The restoring mechanism is capable of storing and releasing the rebound force to provide force support for the switching process of the curved portion of the insertion portion from a curved state to a straight state, thereby reducing the sense of resistance felt by medical staff during the entire operation process.

[0051] First, please refer to Figures 1 to 4 An embodiment of the present application provides an endoscope 100 , including an operating portion 10 , an insertion portion 20 , and a return mechanism 30 .

[0052] The operating part 10 includes an operating body 11, a knob assembly 12 movably connected to the operating body 11, and a transmission assembly 13 disposed in the operating body 11;

[0053] The insertion part 20 includes an insertion body 21 connected to the operation body 11, a bending part 22 connected to the insertion body 21, and a flexible transmission member 23 provided in the insertion body 21 and the bending part 22. One end of the transmission member 13 is connected to the knob member 12, and the other end is connected to one end of the flexible transmission member 23. The other end of the flexible transmission member 23 is used to drive the bending part 22 to bend.

[0054] The restoring mechanism 30 is used to store and release the resilience force;

[0055] Among them, in the force transmission path formed by the knob assembly 12, the transmission assembly 13 and the flexible transmission member 23, the restoring mechanism 30 is disposed at at least one location in the force transmission path.

[0056] It can be understood that the operating part 10 is a part for medical personnel to hold and operate in order to switch the bending part 22 of the insertion part 20 between a straight state and a bent state. Specifically, the operating body 11 is the main part of the operating part 10, and is also the part for medical personnel to hold in their hands. The knob assembly 12 is movably connected to the operating body 11, for example, the knob assembly 12 can rotate around the axis relative to the operating body 11. Usually, a part of the knob assembly 12 is exposed outside the operating body 11 and a part extends into the interior of the operating body 11, and the part extending into the interior of the operating body 11 is connected to the transmission assembly 13, that is, the transmission assembly 13 is driven when the knob assembly 12 rotates around the axis. Among them, the connection mode and corresponding transmission mode between the knob assembly 12 and the transmission assembly 13 are not overly limited here, and can be set according to actual needs. For example, in some optional embodiments, a chain transmission form similar to a gear driving a chain can be adopted. Therefore, at this time, the structural form of the transmission assembly 13 includes but is not limited to a chain, a chain belt, etc., and the knob assembly 12 and the transmission assembly 13 are connected by gears and chains. In other optional embodiments, the transmission between the knob assembly 12 and the transmission assembly 13 can also be achieved through a transmission form such as friction transmission. At this time, the knob assembly 12 and the transmission assembly 13 are transmitted through friction, which is similar to the transmission between a pulley and a belt. In some other optional embodiments, the transmission between the knob assembly 12 and the transmission assembly 13 can also be achieved through a crankshaft connecting rod transmission, etc., which is not overly limited here. The following is an example of the chain transmission between the knob assembly 12 and the transmission assembly 13.

[0057] The insertion body 21 (also called the insertion tube) is the main part of the insertion part 20, which plays the corresponding bearing and deformation functions. In order to adapt to its movement inside the human body, the insertion body 21 should be flexible. Therefore, the bending state of the insertion part 20 referred to in this application refers to the bending behavior of the insertion part 20 under the pulling operation of the operating part 10, rather than the bending behavior of the insertion part 20 under non-pulling action due to its own material characteristics. Driven by the transmission component 13 of the operating part 10 on the flexible transmission member 23, the bending part 22 can switch between a straight state and a bent state. Here, the structural form of the flexible transmission member 23 includes but is not limited to a wire rope, a chain, a rope belt, etc. At the same time, the number of flexible transmission members 23 can also be one or more to meet the bending needs of the bending portion 22 with multiple degrees of freedom in space, and the flexible transmission members 23 should be entirely arranged in the insertion body 21 and the bending portion 22, that is, the flexible transmission members 23 are entirely arranged in the insertion portion 20. The flexible transmission member 23 needs to be connected to the transmission assembly 13 of the operating portion 10, and the portion extending into the operating body 11 is shorter in length and can be ignored, or it can be considered that a portion of the flexible transmission member 23 extends into the operating portion 10.

[0058] The restoring mechanism 30 is a mechanism capable of storing and releasing the resilience force. It should be understood that the resilience force in the embodiment of the present application includes the reaction force generated by the object after being acted upon by an external force, including but not limited to elastic force and magnetic force, etc. For example, in some embodiments, for example, in some embodiments, the restoring mechanism 30 may be an elastic part, such as a spring, a spring sheet, etc., or a magnetic part, such as a magnet, and a combination of the above structures.

[0059] The force transmission path formed by the knob assembly 12, the transmission assembly 13 and the flexible transmission member 23 refers to the force transmission path for the medical staff to operate and control the bending portion 22 to swing in space. Specifically, when the medical staff's hand turns the knob assembly 12, the knob assembly 12 drives the transmission assembly 13 to pull the flexible transmission member 23, and transmits the torque to the bending portion 22 to drive the bending portion 22 to turn in space. In the embodiment of the present application, the return mechanism 30 can be set at any one or more of the knob assembly 12, the transmission assembly 13 and the flexible transmission member 23.

[0060] For example, the return mechanism 30 may be provided at the knob assembly 12 to assist the knob assembly 12 in returning to rotation; or Figure 4 As shown, the return mechanism 30 can be arranged in the operating part 10 near the transmission assembly 13 to assist the transmission assembly 13 in contraction transmission; or, the return mechanism 30 can be arranged on the flexible transmission member 23 in the space of the operating part 10 to assist the flexible transmission member 23 in contraction transmission. Alternatively, the return mechanism 30 is on the flexible transmission member 23 in the space of the insertion part 20 (not shown in the drawings). Of course, the return mechanism 30 can also be arranged at any number of the above-mentioned locations at the same time, for example, you can refer to Figure 8 , and a return mechanism 30 is provided at the knob assembly 12 and the transmission assembly 13. At the same time, any number of return mechanisms can be selected for each position. For example, when a return mechanism 30 is provided at the transmission assembly 13, one or more specific return structures can be selected.

[0061] In summary, when medical personnel operate the endoscope to obtain corresponding image information in the patient's body and perform related surgical operations, the medical personnel can rotate or shake the knob assembly 12, for example, rotate the knob assembly 12 clockwise to drive the transmission assembly 13. At this time, the transmission assembly 13 pulls the flexible transmission member 23 in a positive direction to drive the bending portion 22 to bend. Finally, the bending portion 22 swings in space. At the same time, during the entire force transmission process, the return mechanism 30 stores the corresponding rebound force. Once the medical personnel releases the knob assembly 12, the return mechanism 30 begins to release the stored rebound force to assist the knob assembly 12 to rotate counterclockwise, and drives the transmission assembly 13 to pull the flexible transmission member 23 in the opposite direction (opposite to the positive pulling direction). At this time, the bending portion 22 changes from a bent state to a straight state, that is, returns to the initial position state. Therefore, after the return mechanism 30 is added, the smoothness of the change of the bending portion 22 from a bent state to a straight state can be improved.

[0062] In the endoscope provided by the present invention, medical personnel rotate the knob assembly 12 on the operating body 11 to drive the transmission assembly 13, and the transmission assembly 13 then pulls the flexible transmission member 23 to realize the bending and swinging of the bending portion 22 in space. The return mechanism 30 is a mechanism that can store and release the rebound force, such as a shrapnel, a spring, a magnet, etc. Therefore, in the force transmission path composed of the knob assembly 12, the transmission assembly 13, and the flexible transmission member 23, the return mechanism 30 can complete the storage and release of the rebound force to provide force support for the switching process of the bending portion 22 from the bent state to the straight state, thereby reducing the resistance felt by medical personnel during the entire operation process.

[0063] Please refer to Figure 3 and Figure 4 In some embodiments, the restoring mechanism 30 includes a first restoring structure 31, which includes a first elastic member 301 and a first connecting member 302 arranged on the first elastic member 301, the transmission assembly 13 includes a transmission main body 131 and a second connecting member 132 arranged on the transmission main body 131, the first connecting member 302 and the second connecting member 132 are connected, one end of the transmission main body 131 is connected to the knob assembly 12 and the other end is connected to the flexible transmission member 23, and the extension direction of the first elastic member 301 is the same as the transmission direction of the transmission main body 131, and the first connecting member 302 moves as the first elastic member 301 is compressed or extended.

[0064] It can be understood that the first restoring structure 31 is used to provide corresponding resilience to the transmission main body 131 of the transmission assembly 13. The structural form of the first elastic member 301 includes but is not limited to a spring, a spring sheet, an elastic block, and a magnetic attraction structure.

[0065] The connection method between the first connecting member 302 and the first elastic member 301 includes but is not limited to welding, plug-in, clamping, threaded connection, etc. During the process of storing or releasing force in the first recovery structure 31, the first connecting member 302 and the first elastic member 301 are telescopically moved. For example, the first connecting member 302 is driven by the second connecting member 132 to synchronously compress the first elastic member 301, and after the external force is released, when the first elastic member 301 changes from a compressed state to an extended state, the first connecting member 302 moves synchronously with the extension of the first elastic member 301.

[0066] There is a force interaction between the first connecting member 302 and the second connecting member 132, which is used to achieve the force transmission between the transmission body 131 and the first elastic member 301. The first connecting member 302 includes but is not limited to a hook structure, a buckle structure, and the like.

[0067] Furthermore, the connection methods between the second connecting member 132 and the transmission main body 131 include but are not limited to welding, plug-in, clamping, threaded connection, etc., that is, the second connecting member 132 and the transmission main body 131 also move synchronously with the external force.

[0068] Similarly, the second connecting member 132 includes but is not limited to a hook structure, a buckle structure, etc. that matches the first connecting member 302. Alternatively, in some embodiments, the first connecting member 302 and the second connecting member 132 may also be fixed together by adhesive or other fixing methods to achieve force transmission.

[0069] The transmission body 131 is the main structure of the transmission assembly 13 . The knob assembly 12 pulls the transmission body 131 , and finally drives the first flexible transmission member 23 to pull.

[0070] Specifically, when the transmission main body 131 drives the flexible transmission member 23 to move, the second connecting member 132 drives the first connecting member 302 to move, and the first connecting member 302 applies force to the first elastic member 301, so that the first elastic member 301 is compressed and accumulates force. Once the transmission main body 131 stops applying force to the flexible transmission member 23, the first elastic member 301 releases the rebound force, which provides assistance for the flexible transmission member 23 to return to its initial position, that is, it can assist the bending portion 22 to return to a straight state from a bent state.

[0071] In this way, by disposing the first restoring structure 31 at the transmission assembly in the operating portion 10 , the space in the operating portion 10 can be fully utilized, which is convenient for installation and subsequent maintenance.

[0072] Please refer to Figure 4In some embodiments, the first restoring structure 31 also includes two fixing seats 303 spaced apart along the extension and contraction direction of the first elastic member 301 and a shaft 304 disposed between the two fixing seats 303 , and the first elastic member 301 and the first connecting member 302 are both sleeved on the shaft 304 .

[0073] It can be understood that the fixed seat 303 plays a corresponding fixing and supporting role, and the shaft body 304 plays a corresponding guiding role, that is, the first elastic member 301 stores and releases the rebound force in the axial direction of the shaft body 304, and the first connecting member 302 also reciprocates in the axial direction of the shaft body 304.

[0074] Alternatively, if Figure 4 As shown, at least one fixing seat 303 is provided with a limiting structure 305 for abutting against the first connecting member 302 .

[0075] It can be understood that the limiting structure 305 is used to push against the first connecting member 302 to limit the moving distance of the first connecting member 302 on the shaft 304 .

[0076] For example, the limiting structure 305 can be a limiting column, a limiting spring, a limiting block, etc., which can push against the first connecting member 302 to limit the first connecting member 302 when the first connecting member 302 moves on the shaft 304.

[0077] Alternatively, in other embodiments, the limiting structure may also be a partial structure of the fixing seat 303 itself located on the moving path of the first connecting member 302, that is, no additional structure is required. For example, a surface of the fixing seat 303 for setting the shaft 304 is located at the end of the moving path of the first connecting member 302, and can also be used as the limiting structure 305 to achieve movement limiting of the first connecting member 302.

[0078] Specifically, the first elastic member 301 is telescopically moved on the shaft 304 between the two fixed seats 303, and similarly, the first connecting member 302 is also moved on the shaft 304. In this way, the fixed seats 303 and the shaft 304 are used to limit the moving paths of the first elastic member 301 and the first connecting member 302, so as to improve the stability of the restoring mechanism 30 in the process of providing the rebound force, and the range of the first elastic member 301 being stretched or compressed. At the same time, the limiting structure 305 limits the first elastic member 301 to be compressed or stretched to the limit position by abutting, that is, the limiting transmission main body 131 drives the limit position of the flexible transmission member 23, and finally reduces the excessive bending of the bending portion 22.

[0079] Thus, functionally, the first restoring structure combines the two functions of rebound and limit, that is, it can provide a corresponding restoring force to the transmission component and limit the spatial movement of the transmission component at the same time.

[0080] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments, the return mechanism 30 includes a second return structure 32, which includes a second elastic member 306 and a fixed plate 307 arranged in the operating body 11, and the end of the transmission assembly 13 away from the knob body is connected to the flexible transmission member 23, one end of the second elastic member 306 is connected to the end of the transmission body 131 away from the knob body and the other end is connected to the fixed plate 307, and the extension direction of the second elastic member 306 is the same as the transmission direction of the transmission body 131.

[0081] It can be understood that the second restoring structure 32 is used to provide a corresponding resilience force to the connection between the transmission assembly 13 and the flexible transmission member 23 .

[0082] Among them, the fixed plate 307 remains stationary relative to the second elastic member 306. The structural form of the second elastic member 306 can be the same as or different from the structural form of the first elastic member 301. The structural form of the second elastic member 306 includes but is not limited to a spring, a spring sheet, an elastic block, and a magnetic attraction structure.

[0083] Specifically, in the process of the transmission component 13 driving the flexible transmission component 23 to move, the transmission component 13 can drive part of the second elastic component 306 to stretch in the direction away from the fixed plate 307. At this time, the second elastic component 306 accumulates force and energy. Once the transmission component 13 stops applying force to the flexible transmission component 23, the second elastic component 306 releases the rebound force, which provides assistance for the flexible transmission component 23 to return to its initial position, that is, it can assist the bending portion 22 to recover from a bent state to a straight state.

[0084] In other embodiments, the return mechanism 30 includes both a first return structure 31 and a second return structure 32. The transmission assembly 13 includes a transmission body 131 and a second connecting member 132 disposed on the transmission body 131, the first connecting member 302 and the second connecting member 132 are connected, one end of the transmission body 131 is connected to the knob assembly 12, and the expansion and contraction direction of the first elastic member 301 is the same as the transmission direction of the transmission body 131, and the first connecting member 302 moves with the compression or extension of the first elastic member 301; one end of the transmission body 131 away from the knob body is connected to the flexible transmission member 23, one end of the second elastic member 306 is connected to one end of the transmission body 131 away from the knob body and the other end is connected to the fixed plate 307, and the expansion and contraction direction of the second elastic member 306 is the same as the transmission direction of the transmission body 131.

[0085] It can be understood that in this embodiment, the return mechanism 30 provides corresponding resilience at the transmission assembly 13 and at the connection between the transmission main body 131 of the transmission chain and the flexible transmission member 23 to improve the smoothness of the operation process of medical personnel.

[0086] Specifically, when the knob assembly 12 rotates or swings around the axis relative to the operating body 11, the transmission assembly 13 is driven to pull forward. At this time, the second connecting member 132 drives the first connecting member 302 to compress or stretch the first elastic member 301, so that the first elastic member 301 accumulates force. At the same time, the transmission assembly 13 also drives the flexible transmission member 23 to stretch forward. At this time, part of the second elastic member 306 is driven and moves in a direction away from the fixed plate 307 to accumulate force, that is, the first elastic member 301 and the second elastic member 306 accumulate force synchronously, and the bending portion 22 also changes from a straight state to a curved state during the pulling process. Once the medical staff stops rotating or swinging the knob assembly, the first elastic member 301 and the second elastic member 306 release force synchronously, driving the transmission assembly 13 to pull in the opposite direction, and at the same time, pulling the flexible transmission member 23 to pull in the opposite direction. At this time, the bending portion 22 also changes from a curved state to a straight state during the pulling process.

[0087] In some embodiments, the restoring mechanism 30 includes a third restoring structure 33 , which is disposed on the flexible transmission member 23 , and the third restoring structure 33 is located in the operating body 11 and / or in the insertion body 21 .

[0088] It can be understood that the third recovery structure 33 is on the flexible transmission member 23, and is pulled together with the flexible transmission member 23, and the recovery mechanism 30 stores or releases the rebound force during the pulling process. For example, the flexible transmission member 23 should be cut off, and the third recovery structure 33 should be set at the cut-off point of the flexible transmission member 23 to form an integral body to meet the transmission of force. At the same time, the number of the third recovery structures 33 can also be multiple, that is, one or more third recovery structures 33 can be set at the same cut-off point of the flexible transmission member 23, and multiple cut-off points can be formed on the flexible transmission member 23, and one or more third recovery structures 33 can be set at each cut-off point. In this way, the third recovery structure 33 is set on the flexible transmission member 23, the rebound energy loss is small, and the rebound effect is more obvious.

[0089] Furthermore, the third restoring structure 33 is arranged in the operating body 11 with a larger space, or in the insertion body 21, or the third restoring structure 33 is provided in both the operating body and the insertion body 21. In this way, the overall size of the third restoring structure 33 can be larger, that is, the rebound effect of the third restoring structure 33 can be adjusted by changing the size. At the same time, it is also easier to install and maintain later.

[0090] Please refer to Figure 7In some embodiments, the third restoring structure 33 includes a cylinder 308, a piston member 309 movably connected to the cylinder 308, and a third elastic member 310. The piston member 309 includes a piston body 3091 movably connected to the cylinder 308 and a piston rod 3092 whose one end is connected to the piston body 3091 and the other end is passed through the cylinder 308 to the outside. One end of the third elastic member 310 abuts against the piston body 3091 and the other end abuts against the inner wall of the cylinder 308. One end of the piston rod 3092 away from the piston body 3091 is connected to the flexible transmission member 23, and one end of the cylinder 308 away from the piston rod 3092 is connected to the flexible transmission member 23.

[0091] It can be understood that the piston member 309 can perform piston movement in the cylinder 308, and during the piston movement, the third elastic member 310 is compressed or extended, thereby storing and releasing the rebound force.

[0092] Specifically, when the piston member 309 telescopes in the cylinder 308, the piston body 3091 and the inner wall of the cylinder 308 compress or stretch the third elastic member 310, so that the third elastic member 310 stores or releases the resilience. The same flexible transmission member 23 should be cut into two sections, one end of which is connected to the end of the cylinder 308 away from the piston rod 3092, and one end of the other section is connected to the piston rod 3092. In this way, when the flexible transmission member 23 is pulled, the piston body 3091 squeezes the third elastic member 310. Once the flexible transmission member 23 stops pulling, the third elastic member 310 releases the rebound member to assist the flexible transmission member 23 in rebounding.

[0093] In other embodiments, the return mechanism 30 includes a first return structure 31, a second return structure 32 and a third return structure 33. The transmission assembly 13 includes a transmission body 131 and a second connecting member 132 provided on the transmission body 131, the first connecting member 302 and the second connecting member 132 are connected, one end of the transmission body 131 is connected to the knob assembly 12, and the extension direction of the first elastic member 301 is the same as the transmission direction of the transmission body 131, and the first connecting member 302 moves with the compression or extension of the first elastic member 301; the end of the transmission body 131 away from the knob body is connected to the flexible transmission member 23, one end of the second elastic member 306 is connected to the end of the transmission body 131 away from the knob body and the other end It is connected to the fixed plate 307, and the telescopic direction of the second elastic member 306 is the same as the transmission direction of the transmission main body 131; the piston member 309 includes a piston body 3091 movably connected to the cylinder 308 and a piston rod 3092 whose one end is connected to the piston body 3091 and the other end is passed through the cylinder 308 to the outside, one end of the third elastic member 310 abuts against the piston body 3091 and the other end abuts against the inner wall of the cylinder 308, one end of the piston rod 3092 away from the piston body 3091 is connected to the flexible transmission member 23, and one end of the cylinder 308 away from the piston rod 3092 is connected to the flexible transmission member 23.

[0094] It can be understood that in this embodiment, the return mechanism 30 provides corresponding rebound force at the transmission assembly 13, the connection between the transmission main body 131 of the transmission chain and the flexible transmission member 23, and the flexible transmission member 23 in sequence to improve the smoothness of the operation process of medical personnel.

[0095] Specifically, when the knob assembly 12 rotates or swings around the axis relative to the operating body 11, the transmission body 131 is driven to pull forward. At this time, the second connecting member 132 drives the first connecting member 302 to compress or stretch the first elastic member 301, so that the first elastic member 301 accumulates force. At the same time, the transmission body 131 also drives the flexible transmission member 23 to stretch in the forward direction. At this time, the second elastic member 306 is driven and moves in a direction away from the fixed plate 307 to accumulate force. When the piston member 309 telescopes in the cylinder 308, the piston body 3091 and the inner wall of the cylinder 308 compress the third elastic member 310. Then, the first elastic member 301, the second elastic member 306 and the third elastic member 310 accumulate force synchronously, and the bending portion 22 also changes from a straight state to a bent state during the pulling process. Once the medical staff stops rotating or swinging the knob assembly, the first elastic member 301, the second elastic member 306 and the third elastic member 310 release force synchronously, driving the transmission body 131 to pull in the reverse direction, and at the same time, also pulling the flexible transmission member 23 to pull in the reverse direction. At this time, the bending portion 22 also changes from a bent state to a straight state during the pulling process.

[0096] Please refer to Figure 8 In some embodiments, the knob assembly 12 includes a fixed shaft 121 disposed in the operating body 11 and at least two knob bodies 122 that are sequentially sleeved on the fixed shaft 121 along the axial direction of the fixed shaft 121 and rotatably connected to the fixed shaft 121. The return mechanism 30 includes a fourth return structure 34, which is disposed in at least one of the knob bodies 122. The corresponding knob body 122 rotates around the fixed shaft 121 to store force for the return mechanism 30.

[0097] It can be understood that the fixed shaft 121 is fixed in the operating body 11 to remain stationary, and each knob body 122 rotates around the fixed shaft 121, and each knob body 122 drives the corresponding transmission assembly 13 to pull the corresponding flexible transmission member 23 to achieve multi-directional rotation or swing of the bending portion 22 in space. Also, when the knob body 122 rotates around the fixed shaft 121, the fourth return structure 34 accumulates force, and once the knob body 122 is released, the return mechanism 30 releases force to assist the knob body 122 to rotate in the opposite direction around the fixed shaft 121. Also, the fourth return structure 34 is set at the knob body 122 of the knob assembly 12, and the subsequent maintainability is better, especially suitable for the maintenance method of directly replacing the knob body.

[0098] Specifically, each knob body 122 rotates around the fixed axis 121 to drive the corresponding transmission assembly 13 to transmit, wherein the return mechanism 30 is arranged in one or several corresponding knob bodies 122, and when the corresponding knob body 122 rotates around the axis, the return mechanism 30 stores energy.

[0099] Please refer to Figure 8 In some embodiments, the fourth restoring structure 34 includes a fourth elastic member 311 sleeved on the fixed shaft 121 , one end of the fourth elastic member 311 is connected to the knob body 122 and the other end is connected to the fixed shaft 121 .

[0100] It can be understood that the structure of the fourth elastic member 311 includes but is not limited to a torsion spring, a leaf spring, a spring sheet, an elastic block, etc.

[0101] When the knob body 122 rotates around the axis, the fourth elastic member 311 is driven to store energy. Once the knob body 122 removes the external force, the fourth elastic member 311 assists the corresponding knob body 122 to rotate around the axis in the opposite direction.

[0102] In other embodiments, the return mechanism 30 includes a first return structure 31, a second return structure 32, a third return structure 33 and a fourth return structure 34. The transmission assembly 13 includes a transmission body 131 and a second connecting member 132 provided on the transmission body 131, the first connecting member 302 and the second connecting member 132 are connected, one end of the transmission body 131 is connected to the knob assembly 12, and the expansion and contraction direction of the first elastic member 301 is the same as the transmission direction of the transmission body 131, and the first connecting member 302 moves with the compression or extension of the first elastic member 301; one end of the transmission body 131 away from the knob body 122 is connected to the flexible transmission member 23, one end of the second elastic member 306 is connected to the end of the transmission body 131 away from the knob body 122 and the other end is connected to the fixed plate 307, and the expansion and contraction direction of the second elastic member 306 is the same as the transmission direction of the transmission body 131; the piston member 3 09 includes a piston body 3091 movably connected in the cylinder 308 and a piston rod 3092 with one end connected to the piston body 3091 and the other end passing through the cylinder 308 to the outside, one end of the third elastic member 310 abuts against the piston body 3091 and the other end abuts against the inner wall of the cylinder 308, one end of the piston rod 3092 away from the piston body 3091 is connected to the flexible transmission member 23, and one end of the cylinder 308 away from the piston rod 3092 is connected to the flexible transmission member 23; the knob assembly 12 includes a fixed shaft 121 arranged in the operating body 11 and at least two knob bodies 122 which are axially sequentially sleeved on the fixed shaft 121 and rotatably connected to the fixed shaft 121; one end of the fourth elastic member 311 is connected to the knob body 122 and the other end is connected to the fixed shaft 121.

[0103] It can be understood that in this embodiment, the return mechanism 30 provides corresponding rebound force in sequence at the knob body 122, the transmission assembly 13, the connection between the transmission body 131 of the transmission chain and the flexible transmission member 23, and the flexible transmission member 23 to improve the smoothness of the operation process of medical personnel.

[0104] Specifically, when the knob body 122 rotates or swings around the fixed axis 121, the fourth elastic member 311 is charged, and at the same time, the transmission body 131 is also driven to pull forward. At this time, the second connecting member 132 drives the first connecting member 302 to compress or stretch the first elastic member 301, so that the first elastic member 301 is charged. At the same time, the transmission body 131 also drives the flexible transmission member 23 to stretch forward. At this time, the second elastic member 306 is driven and moves in a direction away from the fixed plate 307 to charge. When the piston member 309 telescopes in the cylinder 308, the piston body 3091 and the inner wall of the cylinder 308 compress the third elastic member 310. Then, the first elastic member 301, the second elastic member 306, the third elastic member 310 and the fourth elastic member 311 are charged synchronously, and the bending portion 22 is also changed from a straight state to a bent state during the pulling process. Once the medical staff stops rotating or swinging the knob assembly, the first elastic member 301, the second elastic member 306, the third elastic member 310 and the fourth elastic member 311 release the force synchronously, driving the transmission body 131 to pull in the reverse direction, and at the same time, also pulling the flexible transmission member 23 to pull in the reverse direction. At this time, the bending portion 22 also changes from a bent state to a straight state during the pulling process.

[0105] Please refer to Figure 8 In some embodiments, there are two knob bodies 122, and the knob assembly 12 includes a first sleeve 123 sleeved on the fixed shaft 121, a second sleeve 124 sleeved on the first sleeve 123, and a bearing seat 125 sleeved on the second sleeve 124, wherein one knob body 122 is connected to one end of the first sleeve 123 away from the bearing seat 125, and the other knob body 122 is connected to one end of the second sleeve 124 away from the bearing seat 125, and the first sleeve 123 and the second sleeve 124 are respectively used to drive the corresponding transmission assembly 13.

[0106] It can be understood that the first sleeve 123 is used to cooperate with one of the knob bodies 122 to achieve rotation around the axis, and finally drive the corresponding transmission assembly 13; and the second sleeve 124 is used to cooperate with the other knob body 122 to achieve rotation around the axis, and finally drive the corresponding transmission assembly 13.

[0107] In a second aspect, the embodiment of the present application further provides an endoscope system, including a display, a light source host, an image processing device, and the endoscope 100. It should be noted that in some embodiments, the light source host and the image processing device can be integrated into one, that is, the two are the same device. In this case, the endoscope system can also be described as including: a display, a host, and the endoscope 100.

[0108] It can be understood that the beneficial effects of the second aspect of the present application can refer to the beneficial effects stated in the first aspect, and will not be repeated here.

[0109] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An endoscope (100), characterized in that: include: An operating part (10), the operating part (10) comprising an operating body (11), a knob assembly (12) movably connected to the operating body (11), and a transmission assembly (13) arranged in the operating body (11); An insertion portion (20), the insertion portion (20) comprising an insertion body (21) connected to the operating body (11), a bending portion (22) connected to the insertion body (21), and a flexible transmission member (23) provided in the insertion body (21) and the bending portion (22), one end of the transmission member (13) being connected to the knob member (12), and the other end being connected to one end of the flexible transmission member (23), and the other end of the flexible transmission member (23) being used for driving the bending portion (22) to bend; A restoring mechanism (30), the restoring mechanism (30) being used to store and release a rebound force; Wherein, in the force transmission path formed by the knob assembly (12), the transmission assembly (13) and the flexible transmission member (23), the return mechanism (30) is arranged at at least one point in the force transmission path.

2. The endoscope according to claim 1, characterized in that: The restoring mechanism (30) comprises a first restoring structure (31), the first restoring structure (31) comprises a first elastic member (301) and a first connecting member (302) arranged on the first elastic member (301), the transmission assembly (13) comprises a transmission main body (131) and a second connecting member (132) arranged on the transmission main body (131), the first connecting member (302) and the second connecting member (132) are connected, one end of the transmission main body (131) is connected to the knob assembly (12) and the other end is connected to the flexible transmission member (23), and the extension direction of the first elastic member (301) is the same as the transmission direction of the transmission main body (131), and the first connecting member (302) moves as the first elastic member (301) is compressed or extended.

3. The endoscope according to claim 2, characterized in that: The first restoring structure (31) further comprises two fixing seats (303) arranged at intervals along the telescopic direction of the first elastic member (301) and a shaft body (304) arranged between the two fixing seats (303), and the first elastic member (301) and the first connecting member (302) are both sleeved on the shaft body (304).

4. The endoscope according to claim 1 or 2, characterized in that: The return mechanism (30) includes a second return structure (32), the second return structure (32) includes a second elastic member (306) and a fixed plate (307) arranged in the operating body (11), one end of the second elastic member (306) is connected to one end of the transmission component (13) away from the knob component (12) and the other end is connected to the fixed plate (307), and the extension direction of the second elastic member (306) is the same as the transmission direction of the transmission component (13).

5. The endoscope according to claim 1 or 2, characterized in that: The restoring mechanism (30) comprises a third restoring structure (33), wherein the third restoring structure (33) is arranged on the flexible transmission member (23), and the third restoring structure (33) is located inside the operating body (11) and / or inside the insertion body (21).

6. The endoscope according to claim 5, characterized in that: The third restoring structure (33) includes a cylinder (308), a piston member (309) movably connected to the cylinder (308) and a third elastic member (310), wherein the piston member (309) includes a piston body (3091) movably connected to the cylinder (308) and a piston rod (3092) one end of which is connected to the piston body (3091) and the other end of which is passed through the cylinder (308) to the outside, one end of the third elastic member (310) abuts against the piston body (3091) and the other end abuts against the inner wall of the cylinder (308), one end of the piston rod (3092) away from the piston body (3091) is connected to the flexible transmission member (23), and one end of the cylinder (308) away from the piston rod (3092) is connected to the flexible transmission member (23).

7. The endoscope according to claim 1 or 2, characterized in that: The knob assembly (12) comprises a fixed shaft (121) arranged in the operating body (11) and at least two knob bodies (122) which are sequentially sleeved on the fixed shaft (121) along the axial direction of the fixed shaft (121) and rotatably connected to the fixed shaft (121); the return mechanism (30) comprises a fourth return structure (34); the fourth return structure (34) is arranged in at least one of the knob bodies (122); the corresponding knob body (122) rotates around the fixed shaft (121) to store force on the fourth return structure (34).

8. The endoscope according to claim 7, characterized in that: The fourth restoring structure (34) comprises a fourth elastic member (311) sleeved on the fixed shaft (121); one end of the fourth elastic member (311) is connected to the knob body (122) and the other end is connected to the fixed shaft (121).

9. The endoscope according to claim 8, characterized in that: The number of the knob bodies (122) is two, and the knob assembly (12) comprises a first shaft sleeve (123) sleeved on the fixed shaft (121), a second shaft sleeve (124) sleeved on the first shaft sleeve (123), and a bearing seat (125) sleeved on the second shaft sleeve (124), wherein one of the knob bodies (122) is disposed at one end of the first shaft sleeve (123) away from the bearing seat (125), and the other knob body (122) is disposed at one end of the second shaft sleeve (124) away from the bearing seat (125), and the first shaft sleeve (123) and the second shaft sleeve (124) are respectively used to drive the corresponding transmission assembly (13).

10. An endoscope system, characterized in that: The endoscope comprises a display, a light source host, an image processing device, and an endoscope (100) as claimed in any one of claims 1 to 9.

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