Endoscope and endoscope system

Abstract

The present application relates to the technical field of medical apparatus, and provides an endoscope and an endoscope system, the endoscope comprising an operation part and an insertion part, the operation part comprising a driving part, a force transmission part and a flexible transmission member, the driving part being connected to the force transmission part to enable the force transmission part to reciprocate along a force transmission direction, one end of the force transmission part away from the driving part being provided with a containing cavity, the flexible transmission member having a first end and a second end provided opposite to the first end, the first end being placed in the containing cavity and being movable in the containing cavity, and the insertion part being used for connecting an executing mechanism, the second end being connected to the executing mechanism, the endoscope provided by the present application forms the containing cavity on the force transmission part, so that the first end of the flexible transmission member can move in the containing cavity, and thus the risk of misoperation of the endoscope can be reduced when medical staff manually operate the driving part to immediately transmit the torque to the flexible transmission member through the force transmission part.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an endoscope and an endoscope system. Background Technology

[0002] Endoscopic examination is an important clinical diagnostic procedure, typically performed using an endoscope. An endoscope usually consists of a connecting section, an operating section, and an insertion section connected in sequence. The connecting section connects to the endoscope system's light source unit, the insertion section extends into the patient's body for image acquisition and observation, and the operating section is mainly used to control the insertion and withdrawal of instruments, the bending of the insertion section, the control of the lifting device, and the zooming of the lens image.

[0003] The operating unit typically features a crank-connecting rod. Medical personnel apply rotational force to the crank-connecting rod to pull the steel cable, which in turn pulls the lifting device or lens at the front of the insertion unit, causing the lifting device to stand up or fall down, or to magnify or reduce the image. Medical personnel generally operate the crank-connecting rod blindly with relatively slight movements to ensure timely feedback from the lifting device or lens at the front of the insertion unit. However, this also makes the operating unit susceptible to accidental operation. Summary of the Invention

[0004] The purpose of this invention is to provide an endoscope and an endoscope system that aims to solve the problem that the operating part of the endoscope is easily misoperated.

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

[0006] In a first aspect, embodiments of this application provide an endoscope, comprising:

[0007] The operating unit includes a driving unit, a force transmission unit, and a flexible transmission member. The driving unit is connected to the force transmission unit to cause the force transmission unit to reciprocate along the force transmission direction. The end of the force transmission unit away from the driving unit is provided with a receiving cavity. The flexible transmission member has a first end and a second end disposed opposite to the first end. The first end is placed in the receiving cavity and can move within the receiving cavity.

[0008] An insertion part, the insertion part including an actuator, the second end being connected to the actuator.

[0009] The beneficial effects of the present invention are as follows: The endoscope provided by the present invention has a receiving cavity formed on the force transmission part, so that the first end of the flexible transmission member can move within the receiving cavity. This avoids the medical staff from immediately transmitting torque to the flexible transmission member through the force transmission part when manually operating the drive part, thereby reducing the risk of endoscope misoperation.

[0010] In some embodiments, the force transmission unit includes a main body and a movable part movably connected to the main body. The movable part is capable of moving relative to the main body in the forward or reverse direction of the force transmission direction to adjust the size of the accommodating cavity.

[0011] By adopting the above technical solution, the force transmission part is divided into two parts, namely, the main body and the movable part that is movably connected to the main body. Then, by adjusting the relative position of the movable part and the main body, the size of the accommodating cavity can be adjusted, so that the amount of movement of the first end of the flexible transmission member in the accommodating cavity can be adjusted accordingly.

[0012] In some embodiments, the main body is provided with a first receiving groove, and the movable part has a threaded section that is threadedly connected to the groove wall of the first receiving groove and an extension section connected to the threaded section, the extension section extending out of the first receiving groove to the outside.

[0013] By adopting the above technical solution, the threaded section of the movable part is threadedly engaged with the first receiving groove. At the same time, the protruding section is provided for commissioning personnel to operate and adjust, so as to change the relative position of the threaded section in the first receiving groove.

[0014] In some embodiments, the protruding section is provided with a plurality of adjustment holes, and each adjustment hole is circumferentially spaced around the axis of the protruding section.

[0015] By adopting the above technical solution, the extension section can rotate around the axis relative to the main body using each adjustment hole, so that the threaded section can move telescopically relative to the groove wall of the first receiving groove along the force transmission direction.

[0016] In some embodiments, the movable portion further includes an intermediate section connected to the threaded section and the extended section, the intermediate section having a settling plane, and the force transmission portion includes a locking member that passes through the main body portion and abuts against the settling plane.

[0017] By adopting the above technical solution, an intermediate section and a locking component are added. The locking component abuts against the fixing plane of the intermediate section to limit the rotation of the threaded section of the movable part in the first receiving groove, thereby improving the positional accuracy of the first end of the flexible transmission component in the receiving cavity.

[0018] In some embodiments, there are multiple fixing planes, each of which is circumferentially distributed around the axis of the intermediate section, and each fixing plane corresponds to one of the adjustment holes.

[0019] By adopting the above technical solution, each adjustment hole corresponds to a locking plane. That is, when the extension section is rotated around the axis by the adjustment hole, the corresponding locking plane also rotates, so that the extension section can be locked by the locking member after rotating to a certain angle.

[0020] In some embodiments, the threaded section is provided with a second receiving groove, which is connected to the first receiving groove to enclose and form the receiving cavity. The first end is provided with a connecting terminal, which is placed in the second receiving groove and abuts against the groove wall of the second receiving groove.

[0021] By adopting the above technical solution, the second receiving groove and the first receiving groove together form a receiving cavity, thereby increasing the space size of the receiving cavity. At the same time, the second receiving groove also has a certain limiting effect on the connecting terminal at the first end, so as to reduce the deflection of the connecting terminal when it comes into contact with the threaded section.

[0022] In some embodiments, the connecting terminal has a wedge-shaped end, and the groove wall of the second receiving groove has a wedge-shaped surface adapted to the wedge-shaped end.

[0023] By adopting the above technical solution, the wedge-shaped end of the connecting terminal is adapted to the wedge-shaped surface of the second receiving groove, thereby further improving the connection stability between the movable part and the first end when they abut against each other.

[0024] In some embodiments, the operating unit further includes a base plate, and the driving unit includes a rotating part disposed on the base plate and a crank connecting rod with one end connected to the rotating part, the other end of the crank connecting rod being hinged to the force transmission unit.

[0025] By adopting the above technical solution, medical personnel can apply force to the crank connecting rod by manually turning the rotating part, thereby driving the power transmission part.

[0026] Secondly, embodiments of this application also provide an endoscope system, including a display, a light source host, an image processing device, and the endoscope described above.

[0027] Understandably, the beneficial effects of the second aspect of this application can be referred to the beneficial effects stated in the first aspect, and will not be repeated here. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an endoscope provided in an embodiment of the present invention;

[0030] Figure 2This is a schematic diagram of the structure of the operating part of an endoscope provided in an embodiment of the present invention;

[0031] Figure 3 A cross-sectional view of the operating section of an endoscope provided in an embodiment of the present invention;

[0032] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0033] Figure 5 This is a schematic diagram of the structure of the movable part of the endoscope provided in Embodiment 1 of the present invention;

[0034] Figure 6 A cross-sectional view of the movable part of an endoscope provided in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the movable part of the endoscope provided in Embodiment 2 of the present invention;

[0036] Figure 8 This is a partial enlarged view of the operating part of the endoscope provided in an embodiment of the present invention.

[0037] The following are the labeling elements in the figures:

[0038] 100. Endoscope;

[0039] 10. Operating section; 11. Drive section; 111. Rotating section; 112. Crank connecting rod; 12. Force transmission section; 12a. Receiving cavity; 13. Flexible transmission component; 13a. First end; 13b. Second end; 121. Main body; 122. Movable section; 12a1. First receiving groove; 1221. Threaded section; 1222. Intermediate section; 1223. Extended section; 122a. Adjustment hole; 122b. Settling plane; 123. Locking component; 122c. Opening; 12a2. Second receiving groove; 131. Connecting terminal; 14. Base plate;

[0040] 20. Insertion section;

[0041] X, the direction of force transmission. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Typically, an endoscope includes a connecting section, an operating section, and an insertion section. The connecting section connects to the light source unit of the endoscope system, transmitting the light to the insertion section. The operating section is for medical personnel to hold and operate, adjusting the curvature of the insertion section. The end of the insertion section furthest from the operating section may have a lifting device or lens installed, depending on the actual usage requirements. Medical personnel control the lifting device and zoom the lens image by operating the relevant parts of the operating section.

[0047] In the relevant technical solution, the operating unit is equipped with a steel wire rope for transmission, which transmits torque to the lifting device or lens of the insertion part. Specifically, medical personnel apply a rotational force to the crank connecting rod to pull the steel wire rope, thereby pulling the lifting device or lens at the front end of the insertion part, causing the lifting device to stand up or fall down, or the lens to magnify or reduce the image.

[0048] Medical staff typically operate the crank connecting rod blindly, requiring relatively little force to provide timely feedback to the lifting device or lens at the front of the insertion part. However, this also makes the operating part susceptible to errors. Even a slight touch of the crank connecting rod by the medical staff can cause a corresponding change in the actuator at the front of the insertion part, which is not conducive to the actual operation of the medical staff.

[0049] In view of this, this application provides an endoscope with a receiving cavity at the connection between the force transmission part and the flexible transmission member, so that the first end of the flexible transmission member can move within the receiving cavity to provide a certain margin. In this way, the flexible transmission member is in a non-tensioned state in the initial state. Only when the medical staff moves the drive part to transmit torque to the flexible transmission member through the force transmission part will the flexible transmission member be in a tensioned and straightened state. Therefore, when the medical staff operates the endoscope, the force transmission part has a free stroke. That is, when the medical staff applies a rotational force to the crank connecting rod, the actuator at the front end of the insertion part will not be triggered immediately, thus achieving the goal of preventing accidental contact.

[0050] Firstly, please refer to Figures 1 to 4 , Figure 8 This application provides an endoscope 100, including an operation part 10 and an insertion part 20.

[0051] The insertion part 20 is the part that enters the patient's body. A lifting device or lens is usually installed at the end of the insertion part 20 away from the operating part 10. The operating part 10 is operated by the hands of medical personnel to raise and lower the lifting device at the proximal end of the insertion part 20, or to magnify and reduce the image.

[0052] Specifically, the operation unit 10 includes a drive unit 11, a force transmission unit 12, and a flexible transmission member 13. The drive unit 11 is connected to the force transmission unit 12 so that the force transmission unit 12 reciprocates along the force transmission direction X. The end of the force transmission unit 12 away from the drive unit 11 is provided with a receiving cavity 12a. The flexible transmission member 13 has a first end 13a and a second end 13b disposed opposite to the first end 13a. The first end 13a is placed in the receiving cavity 12a and can move within the receiving cavity 12a.

[0053] The insertion part 20 includes an actuator, and the second end 13b is connected to the actuator.

[0054] Understandably, the drive unit 11 is the power output part and also the part that directly interacts with the medical staff's hand. The drive unit 11 can be a rotating mechanism or a telescopic mechanism, transmitting torque or moment to the force transmission unit 12. The force transmission unit 12 is an intermediate structure in the force transmission, transmitting the torque or moment output by the drive unit 11 to the flexible transmission member 13. Here, the force transmission unit 12 can be a sliding mechanism or a slider-like structure, etc. The flexible transmission member 13 is the component that transmits the moment to the insertion part 20. The flexible transmission member 13 has a certain degree of flexibility and deformability to adapt to the spatial bending phenomenon that may occur in the insertion part 20. Therefore, the first end 13a of the flexible transmission member 13 is connected to the force transmission unit 12, and the second end 13b is connected to the insertion part 20. The flexible transmission member 13 can be a wire rope, chain, etc.

[0055] Here, the force transmission direction X refers to the arrangement direction of the drive unit 11 and the force transmission unit 12, and is also the extension direction of the flexible transmission member 13 within the operation unit 10. The actuator can lift the insert or the lens, and the torque can be transmitted from the first end 13a of the flexible transmission member 13 to the second end 13b, thereby realizing the lifting or lowering of the insert, and the magnification or reduction of the lens image.

[0056] Specifically, the force transmission unit 12 and the flexible transmission member 13 are not fixedly connected. Instead, the first end 13a of the flexible transmission member 13 is movably disposed within the accommodating cavity 12a of the force transmission unit 12. That is, the first end 13a can have a certain amount of space to move within the accommodating cavity 12a. When the driving unit 11 transmits torque to the force transmission unit 12 and the force transmission unit 12 transmits torque to the flexible transmission member 13, the first end 13a should first move within the accommodating cavity 12a until the first end 13a abuts against the inner wall of the accommodating cavity 12a and no longer moves relative to it. Only then will the torque be transmitted from the force transmission unit 12 to the flexible transmission member 13.

[0057] In summary, when medical personnel operate the endoscope 100, they apply force to the drive unit 11 with their hands, causing the drive unit 11 to generate torque. During the transmission of this torque from the force transmission unit 12 to the flexible transmission member 13, the first end 13a of the flexible transmission member 13 moves relative to the force transmission unit 12 within the accommodating cavity 12a. Only when the first end 13a and the force transmission unit 12 are relatively stationary does the torque transfer from the force transmission unit 12 to the flexible transmission member 13. Externally, when the medical personnel's hand touches the drive unit 11, the actuator at the front end of the insertion unit 20 does not immediately perform the corresponding action; instead, there is a certain amount of idle travel. The medical personnel's hand needs to apply a certain force to the drive unit 11 before triggering the actuator at the front end of the insertion unit 20 to perform the corresponding action, thus ensuring that the operating unit 10 meets the requirements for preventing accidental touch.

[0058] The endoscope 100 provided by the present invention has a receiving cavity 12a formed on the force transmission part 12, so that the first end 13a of the flexible transmission member 13 can move within the receiving cavity 12a. This avoids the medical staff from immediately transmitting the torque through the force transmission part 12 to the flexible transmission member 13 when manually operating the drive part 11, thereby reducing the risk of misoperation of the endoscope 100.

[0059] Please refer to Figures 2 to 4 In some embodiments, the force transmission unit 12 includes a main body 121 and a movable part 122 movably connected to the main body 121. The movable part 122 can move relative to the main body 121 in the forward or reverse direction of the force transmission direction X to adjust the size of the accommodating cavity 12a.

[0060] Understandably, the main body 121 and the movable part 122 are two relatively independent parts of the force transmission part 12. The main body 121 is intended to be connected to the drive part 11, while the movable part 122 is capable of relative movement relative to the main body 121. Specifically, the movable part 122 is capable of moving relative to the main body 121 along the force transmission direction X.

[0061] For example, a cavity may be formed in the main body 121, and an internal thread may be formed on the inner wall of the cavity, and an external thread may be formed on the outer wall of the movable part 122. By adapting the internal and external threads, the movable part 122 may extend and retract relative to the main body 121 in the force transmission direction X, thereby changing the spatial size of the accommodating cavity 12a.

[0062] For example, a cavity is also formed on the main body 121, and the movable part 122 is connected to the cavity by a plug-in connection. Similarly, the movable part 122 moves telescopically relative to the main body 121 in the force transmission direction by sliding friction.

[0063] Furthermore, since the installation position of the movable part 122 relative to the main body 121 is adjustable, that is, the size of the accommodating cavity 12a in the force transmission direction X is adjustable, medical personnel can reduce the cutting accuracy requirements of the flexible transmission member 13 driven by the insertion part 20 before moving the drive part 11. That is, the installation accuracy between the flexible transmission member 13 and the force transmission part 12 is lower. In particular, in related fields, the assembly accuracy and usage accuracy of endoscopes are required to be higher. Thus, by providing a certain space margin at the accommodating cavity 12a, the installation accuracy requirements can be further reduced. In particular, for processes using direct welding, the installation gap is not adjustable, which can easily lead to defective products in actual assembly.

[0064] Thus, the force transmission unit 12 is divided into two parts, namely, the main body 121 and the movable part 122 which is movably connected to the main body 121. By adjusting the relative position of the movable part 122 and the main body 121, the size of the accommodating cavity 12a can be adjusted, so that the amount of movement of the first end 13a of the flexible transmission member 13 within the accommodating cavity 12a can be adjusted accordingly.

[0065] Please refer to Figures 4 to 6 In some embodiments, the main body 121 is provided with a first receiving groove 12a1, and the movable part 122 has a threaded section 1221 that is threadedly connected to the groove wall of the first receiving groove 12a1 and an extension section 1223 connected to the threaded section 1221. The extension section 1223 extends out of the first receiving groove 12a1 to the outside.

[0066] Understandably, the first receiving groove 12a1 is a groove structure with an open end. The threaded section 1221 of the movable part 122 seals the open end of the first receiving groove 12a1, and the threaded section 1221 is threadedly connected to the inner wall of the first receiving groove 12a1. Here, the receiving cavity 12a is the space formed after the first receiving groove 12a1 is sealed by the threaded section 1221, and the first end 13a of the flexible transmission member 13 moves within this space. The protruding section 1223 should be the part that extends out of the first receiving groove 12a1 to the outside. The operator can rotate the protruding section 1223 to change the relative position of the threaded section 1221 within the first receiving groove 12a1, thereby adjusting the size of the receiving cavity 12a.

[0067] Thus, the threaded section 1221 of the movable part 122 is threadedly engaged with the first receiving groove 12a1, while the protruding section 1223 is provided for the commissioning personnel to operate and adjust, so as to change the relative position of the threaded section 1221 in the first receiving groove 12a1.

[0068] Please refer to Figure 5 and Figure 6 In some embodiments, the protruding section 1223 is provided with a plurality of adjustment holes 122a, and each adjustment hole 122a is circumferentially spaced around the axis of the protruding section 1223.

[0069] Understandably, the operator can insert the corresponding tool into the corresponding adjustment hole 122a to apply a rotational force around the axis to the protruding section 1223, thereby causing the threaded section 1221 to move relative to the groove wall of the first receiving groove 12a1.

[0070] For example, each adjustment hole 122a is distributed at equal intervals around the axis of the extension section 1223 in the circumference of the extension section 1223. In this way, the angle of each adjustment hole 122a about the axis of the extension section 1223 is fixed, and the feed amount of the threaded section 1221 relative to the groove wall of the first receiving groove 12a1 can be quantified by corresponding conversion.

[0071] Thus, by using each adjustment hole 122a, the protruding section 1223 can rotate about the axis relative to the main body 121, so that the threaded section 1221 can move telescopically relative to the groove wall of the first receiving groove 12a1 along the force transmission direction X.

[0072] Please refer to Figures 4 to 7 In some embodiments, the movable part 122 further includes an intermediate section 1222 connected to the threaded section 1221 and the extended section 1223, the intermediate section 1222 having a settling plane 122b, and the force transmission part 12 includes a locking member 123, which passes through the main body part 121 and abuts against the settling plane 122b.

[0073] Understandably, the intermediate section 1222 is the part connected between the threaded section 1221 and the protruding section 1223, and the intermediate section 1222 should also be located within the first receiving groove 12a1. The fixing plane 122b is a plane circumferentially of the intermediate section 1222, used to abut against the locking member 123. Here, the locking member 123 can be a screw or a pin, etc. After the locking member 123 passes through the main body 121, it extends into the first receiving groove 12a1 and abuts against the fixing plane 122b, thereby limiting the rotation of the threaded section 1221 within the first receiving groove 12a1.

[0074] Thus, by adding an intermediate section 1222 and a locking member 123, the locking member 123 abuts against the fixing plane 122b of the intermediate section 1222 to limit the rotation of the threaded section 1221 of the movable part 122 within the first receiving groove 12a1, thereby improving the positional accuracy of the first end 13a of the flexible transmission member 13 within the receiving cavity 12a.

[0075] In some embodiments, at least one fixed plane 122b is provided with an opening 122c.

[0076] Understandably, the opening 122c is a process hole used to observe whether the flexible transmission component 13 extends into a preset position to meet the corresponding connection requirements.

[0077] Please refer to Figure 5 and Figure 7 In some embodiments, there are multiple fixing planes 122b, each fixing plane 122b is circumferentially distributed around the axis of the middle section 1222, and each fixing plane 122b corresponds to each adjusting hole 122a.

[0078] Understandably, the one-to-one correspondence between each fixing plane 122b and each adjusting hole 122a means that the adjusting hole 122a and the corresponding fixing plane 122b rotate at the same angle about the axis. For example, when there are four adjusting holes 122a, each adjusting hole 122a is distributed at equal intervals around the axis of the protruding section 1223. Then, the included angle between two adjacent adjusting holes 122a is 90 degrees. At the same time, there are also four fixing planes 122b, and the included angle between the planes containing two adjacent fixing planes 122b is also 90 degrees. That is, the center line of the adjusting hole 122a is perpendicular to the plane containing the corresponding fixing plane 122b when it extends to that plane. This ensures that when each adjusting hole 122a rotates by the same angle about the axis, the corresponding fixing plane 122b also rotates by the corresponding angle.

[0079] Thus, each adjustment hole 122a corresponds to a locking plane 122b. That is, when the extension section 1223 is rotated around the axis by the adjustment hole 122a, the corresponding locking plane 122b also rotates, so that the extension section 1223 can be locked by the locking member 123 after rotating to a certain angle.

[0080] Please refer to Figure 4 and Figure 6 In some embodiments, the threaded section 1221 is provided with a second receiving groove 12a2, which is connected to the first receiving groove 12a1 to form a receiving cavity 12a. The first end 13a is provided with a connecting terminal 131, which is placed in the second receiving groove 12a2 and abuts against the groove wall of the second receiving groove 12a2.

[0081] Understandably, the second receiving groove 12a2 should be formed by the inward indentation of the threaded section 1221 along the force transmission direction X. At this time, the second receiving groove 12a2 and the first receiving groove 12a1 surround each other to form a receiving cavity 12a. In this way, the length of the first receiving groove 12a1 in the force transmission direction X can be reduced, reducing the processing steps and time. At the same time, the second receiving groove 12a2 can also increase the length space of the receiving cavity 12a in the force transmission direction X to provide more space for forming gaps.

[0082] The connecting terminal 131 is a protrusion formed on the first end 13a of the flexible transmission member 13. The connecting terminal 131 can be connected to the flexible transmission member 13 by means of welding, plugging, or snap-fitting. The connecting terminal 131 is placed in the receiving cavity 12a and can move within the receiving cavity 12a without coming out. Here, the second end 13b of the flexible transmission section should have a threaded section 1221, an intermediate section 1222, and a protruding section 1223 sequentially passing through it to the outside and connected to the actuator at the front end of the insertion part 20.

[0083] Furthermore, when the force transmission unit 12 applies force to the drive unit 11, the connecting terminal 131 gradually enters the second receiving groove 12a2 and finally abuts against the inner wall of the second receiving groove 12a2. Therefore, by adding the second receiving groove 12a2 to match the connecting terminal 131, the probability of the connecting terminal 131 jumping twice after completing the abutment action can be further reduced. That is, in actual operation, after the medical staff's hand completes a neutral stroke by moving the drive unit 11 and then applies force continuously, the torque can be immediately transmitted to the flexible transmission member 13 through the force transmission unit 12, and the actuator at the front end of the insertion part 20 immediately performs the corresponding action.

[0084] Thus, the second receiving groove 12a2 and the first receiving groove 12a1 together enclose and form a receiving cavity 12a, thereby increasing the space size of the receiving cavity 12a. At the same time, the second receiving groove 12a2 also has a certain limiting effect on the connecting terminal 131 of the first end 13a, so as to reduce the deflection of the connecting terminal 131 when it abuts against the threaded section 1221.

[0085] In some embodiments, the connecting terminal 131 has a wedge-shaped end, and the groove wall of the second receiving groove 12a2 has a wedge-shaped surface adapted to the wedge-shaped end.

[0086] Understandably, the wedge-shaped end is adapted to the wedge-shaped surface of the groove wall of the second receiving groove 12a2, thereby further reducing the probability of secondary jumping of the connecting terminal 131 after the abutment action is completed.

[0087] Thus, by adapting the wedge-shaped end of the connecting terminal 131 to the wedge-shaped surface of the second receiving groove 12a2, the connection stability between the movable part 122 and the first end 13a when they abut against each other is further improved.

[0088] Please refer to Figure 2 and Figure 3 In some embodiments, the operating unit 10 further includes a base plate 14, and the driving unit 11 includes a rotating part 111 disposed on the base plate 14 and a crank connecting rod 112 connected to the rotating part 111 at one end, and the other end of the crank connecting rod 112 is hinged to the force transmission unit 12.

[0089] Understandably, the base plate 14 is the part of the operating unit 10 that remains stationary and is used to support the drive unit 11, the force transmission unit 12, etc.

[0090] The rotating part 111 of the drive unit 11 transmits torque while rotating around its own axis. The crank-connecting rod 112, driven by the rotating part 111, transmits torque to the power transmission unit 12. For example, when the rotating part 111 rotates clockwise around its own axis, it pulls the crank-connecting rod 112, thereby moving the power transmission unit 12 towards the rotating part 111. Conversely, when the rotating part 111 rotates counterclockwise around its own axis, it pushes the crank-connecting rod 112, thereby moving the power transmission unit 12 away from the rotating part 111.

[0091] Here, the force transmission unit 12 can slide directly relative to the base plate 14, for example, by providing a corresponding groove on the base plate 14. Alternatively, the force transmission unit 12 can slide indirectly relative to the base plate 14, for example, by providing a structure with a groove on the base plate 14, and the force transmission unit 12 slides relative to the structure with the groove.

[0092] Thus, the rotating part 111 obtains torque by rotating around itself, thereby driving the crank connecting rod 112, and the torque is transmitted to the force transmission part 12 through the crank connecting rod 112, which then pulls the flexible transmission member 13.

[0093] Secondly, embodiments of this application also provide an endoscope 100 system, including a light source host, an image processing device, and the aforementioned endoscope 100. It should be noted that in some embodiments, the light source host and the image processing device can be integrated into a single unit, i.e., they are the same device. In this case, the endoscope 100 system can also be described as including: a display, a host, and the aforementioned endoscope 100.

[0094] Understandably, the beneficial effects of the second aspect of this application can be referred to the beneficial effects stated in the first aspect, and will not be repeated here.

[0095] The above are merely 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 within the protection scope of the present invention.

Claims

1. An endoscope (100), characterized in that, include: The operation unit (10) includes a drive unit (11), a force transmission unit (12), and a flexible transmission member (13). The drive unit (11) is connected to the force transmission unit (12) so that the force transmission unit (12) reciprocates along the force transmission direction (X). The end of the force transmission unit (12) away from the drive unit (11) is provided with a receiving cavity (12a). The flexible transmission member (13) has a first end (13a) and a second end (13b) disposed opposite to the first end (13a). The first end (13a) is placed in the receiving cavity (12a) and is able to move within the receiving cavity (12a). An insertion part (20) includes an actuator, and the second end (13b) is connected to the actuator.

2. The endoscope (100) according to claim 1, characterized in that: The force transmission unit (12) includes a main body (121) and a movable part (122) movably connected to the main body (121). The movable part (122) can move relative to the main body (121) in the forward direction of the force transmission direction (X) or in the reverse direction of the force transmission direction (X) to adjust the size of the accommodating cavity (12a).

3. The endoscope (100) according to claim 2, characterized in that: The main body (121) is provided with a first receiving groove (12a1), and the movable part (122) has a threaded section (1221) that is threadedly connected to the groove wall of the first receiving groove (12a1) and an extension section (1223) connected to the threaded section (1221). The extension section (1223) extends out of the first receiving groove (12a1) to the outside.

4. The endoscope (100) according to claim 3, characterized in that: The extended section (1223) is provided with a plurality of adjustment holes (122a), and each of the adjustment holes (122a) is circumferentially spaced around the axis of the extended section (1223).

5. The endoscope (100) according to claim 3 or 4, characterized in that: The movable part (122) further includes an intermediate section (1222) connecting the threaded section (1221) and the extended section (1223), the intermediate section (1222) having a settling plane (122b), and the force transmission part (12) including a locking member (123) which passes through the main body part (121) and abuts against the settling plane (122b).

6. The endoscope (100) according to claim 5, characterized in that: There are multiple fixing planes (122b), and each fixing plane (122b) is circumferentially distributed around the axis of the intermediate section (1223). Each fixing plane (122b) corresponds to each adjusting hole (122a).

7. The endoscope (100) according to claim 3, characterized in that: The threaded section (1221) is provided with a second receiving groove (12a2), which is connected to the first receiving groove (12a1) to form the receiving cavity (12a). The first end (13a) is provided with a connecting terminal (131), which is placed in the second receiving groove (12a2) and abuts against the groove wall of the second receiving groove (12a2).

8. The endoscope (100) according to claim 7, characterized in that: The connecting terminal (131) has a wedge-shaped end, and the groove wall of the second receiving groove (12a2) has a wedge-shaped surface adapted to the wedge-shaped end.

9. The endoscope (100) according to claim 1, characterized in that: The operating part (10) further includes a base plate (14), and the driving part (11) includes a rotating part (111) disposed on the base plate (14) and a crank connecting rod (112) connected at one end to the rotating part (111), and the other end of the crank connecting rod (112) is hinged to the force transmission part (12).

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

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