A flexible ureteroscope

Abstract

The present invention relates to the technical field of medical surgical instruments, and particularly relates to a flexible ureteroscope, which includes an operating handle. A toggling member for controlling the bending direction and angle of the flexible ureteroscope is provided on the operating handle. The toggling member is rotatably connected to the operating handle. An angle indicating device is provided on the operating handle, and the angle indicating device is located on one side of the toggling member. By providing an angle indicating device on the operating handle and adjusting the toggling member to make the pointer correspond to different values on the angle indicating device, the bending state of the flexible ureteroscope inside the body can be obtained based on the data of the flexible ureteroscope outside the body. This enables the operation and learning of the flexible ureteroscope to be based on data and have a quantifiable standard to execute, increases the convenience during the surgical process, reduces the surgical difficulty, and shortens the learning curve of the flexible ureteroscope surgery.

Description

Technical Field

[0001] The invention relates to the technical field of medical surgical instruments, and in particular to a ureteroscope. Background Art

[0002] Ureteroscopy is a new tool for the treatment of urinary tract stones. It can reach the renal pelvis and calyces directly through the urethra due to its flexibility. It has less trauma, fewer complications, and avoids the risk of kidney damage and bleeding. Compared with percutaneous nephrolithotomy, it has obvious advantages for kidney stones with a diameter of less than 2 cm. Ureteroscopy is a new tool for lithotripsy and is increasingly used in clinical practice.

[0003] However, during the operation of the existing ureteroscope, it is impossible to judge the curvature of the front end of the ureteroscope inserted into the body, so learning and operation can only rely on experience and feel, which will cause great inconvenience to the operation and significantly prolong the learning curve of the operation. Summary of the invention

[0004] The object of the present invention is to provide a flexible ureteroscope, by marking the bending angle of the flexible ureteroscope on an external handle, and by observing the angle indicated on the operating handle, the bending angle of the flexible ureteroscope in the body can be judged.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a ureteroscope, including an operating handle, on which is provided a toggle member for controlling the bending direction and angle of the ureteroscope, the toggle member is rotatably connected to the operating handle, and the operating handle is provided with an angle indicating device, which is located on one side of the toggle member.

[0006] Optionally, the angle indicating device includes an angle disk, the angle disk is fixed on the operating handle, and the toggle member is rotatably connected to the angle disk.

[0007] Optionally, the angle indicating device further comprises a pointer, wherein the pointer is fixed on the toggle member and is rotatably connected to the angle disk.

[0008] Optionally, the toggle member includes a drive shaft and a connecting rod, the drive shaft is rotatably connected to the operating handle, one end of the drive shaft is inserted into the operating handle, and the other end is protruded from the operating handle, one end of the connecting rod is fixed to the protruding part of the drive shaft, and the pointer is fixed on the drive shaft.

[0009] Optionally, the angle plate is fixed to the operating handle via a provided protrusion, a clearance cavity is formed between the angle plate and the operating handle, and the connecting rod is located in the clearance cavity and is slidably connected to the clearance cavity.

[0010] Optionally, the diameter of the angle disk is greater than the width of the operating handle.

[0011] Optionally, the angle indicating device is further provided with an angle magnification component, and the angle magnification component is located between the toggle member and the pointer.

[0012] Optionally, it also includes a mirror body, and a marking line is provided on the circumference of the mirror body in the radial direction.

[0013] Optionally, there are at most four marking lines, the marking lines have different colors, and the marking lines are regularly distributed along the circumference of the mirror body.

[0014] Optionally, an external cable is also included, one end of which is provided with a USB interface.

[0015] The beneficial effects of the present invention are:

[0016] 1. An angle indicator is provided on the operating handle. By adjusting the toggle so that the pointer corresponds to different values ​​on the angle indicator, the bending state of the in vivo ureteroscope can be obtained based on the data of the in vitro ureteroscope. This provides data to support the operation and learning of the ureteroscope and quantitative standards to implement, which increases the convenience of the operation, reduces the difficulty of the operation, and shortens the learning curve of ureteroscope surgery.

[0017] 2. Rotate the connecting rod. The rotation of the connecting rod drives the driving shaft to rotate to adjust the bending angle of the ureteroscope in the body. The angle disc is fixed on the operating handle through the provided protrusion. The driving shaft is passed through the angle disc and is rotatably connected to the angle disc. A pointer is provided at one end of the convex part of the driving shaft away from the angle disc. When the connecting rod is rotated, the rotation of the connecting rod drives the driving shaft to rotate and then drives the pointer to rotate. The angle mark on the angle disc can serve as an indication and reminder for the pointer.

[0018] 3. The diameter of the angle disk is larger than the width of the operating handle. By making the angle disk larger, the dense setting of angle values ​​on the edge of the angle disk is avoided, making the pointer indication more accurate.

[0019] 4. The toggle can only rotate within a certain angle range, while the pointer can rotate within a circle, with a larger angle range. By setting up an angle magnification component, the slight rotation of the toggle can be transmitted to the pointer through the angle magnification component for rotation amplification, making the pointer indication more accurate.

[0020] 5. The circumferential surface of the lens body is provided with marking lines along the radial direction. There are at most four marking lines, and multiple said marking lines are regularly distributed along the circumferential surface of the lens body. The colors of multiple marking lines are different. The circumferential direction of the lens body is 360°. Taking the highest point on the far side of the lens body as 0°, marking lines of different colors are respectively set at the positions of 0°, 90° and 270°. In this way, when rotating the lens body, it is possible to observe and judge whether the rotation is in place according to different colored marking lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic three-dimensional structure diagram of a flexible ureteroscope provided by an embodiment of the present invention;

[0023] Figure 2 Schematic three-dimensional structure diagram of an angle indicating device adopted by a flexible ureteroscope provided by an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of another perspective structure of a flexible ureteroscope provided by an embodiment of the present invention;

[0025] Figure 4 Another perspective view of an angle indicating device adopted by a flexible ureteroscope provided by an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the position of the marking line adopted by a flexible ureteroscope provided by an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the structure of the distal end portion adopted by a flexible ureteroscope provided by an embodiment of the present invention;

[0028] Figure 7 Schematic diagram of the overall structure of an angle magnification component adopted by a flexible ureteroscope provided by an embodiment of the present invention.

[0029] Description of the reference numerals:

[0030] 1. Operating handle; 11. Toggle member; 111. Driving shaft; 112. Connecting rod; 12. Angle indicating device; 121. Angle plate; 122. Pointer; 13. Protrusion; 14. Make way cavity; 15. Soft mirror operating cavity; 16. First groove; 17. Second groove; 2. Mirror body; 21. Tip end; 22. Bending portion; 23. Inserting portion; 3. Marking line; 4. External wiring; 5. Miniature camera; 6. Illumination channel; 7. Operating channel; 8. Angle magnification component; 81. First gear; 82. Second gear; 83. Connecting shaft. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Reference Figures 1 - 7, as a flexible ureteroscope provided by an embodiment of the present invention, includes a mirror body 2 and an operating handle 1. The mirror body 2 includes a distal end portion 21, a bending portion 22, and an insertion portion 23 that are connected in sequence. One end of the insertion portion 23 is connected to the operating handle 1. The other end of the insertion portion 23 is connected to the distal end portion 21 through the bending portion 22. The distal end portion 21 is a columnar body made of a biocompatible hard material, and the columnar body can be made of stainless steel material. A micro camera 5, an illumination channel 6, and an operating channel 7 are provided on the distal end portion 21. There are two illumination channels 6 and they are symmetrically arranged. The illumination channel 6 and the operating channel 7 are both axially through. A flexible mirror operation cavity 15 is provided on one side of the operating handle 1. The flexible mirror operation cavity 15 is the opening of the operating channel 7. A three-way joint is provided at the opening end of the flexible mirror operation cavity 15. The three-way joint is used to connect an optical fiber and a water injection valve, and the optical fiber can extend into the operating channel 7.

[0036] Optionally, a toggling member 11 for controlling the bending direction and angle of the flexible ureteroscope is provided on the operating handle 1. The toggling member 11 is rotatably connected to the operating handle 1. An angle indicating device 12 is provided on the operating handle 1. The angle indicating device 12 is located on one side of the toggling member 11.

[0037] Optionally, the toggle member 11 includes a drive shaft 111 and a connecting rod 112. The drive shaft 111 is rotatably connected to the operating handle 1. One end of the drive shaft 111 is inserted into the operating handle 1, and the other end is protruded from the operating handle 1. One end of the connecting rod 112 is fixed to the protruding portion of the drive shaft 111. The angle indicating device 12 includes an angle disc 121 and a pointer 122. The angle disc 121 is fixed to the operating handle 1 through a protrusion 13. A clearance cavity 14 is formed between the angle disc 121 and the operating handle 1 for the connecting rod 112 to rotate. The setting of the clearance cavity 14 leaves room for the connecting rod 112 to rotate. The drive shaft 111 is inserted through the angle disc 121 and is rotatably connected to the angle disc 121. A pointer 122 is provided at one end of the protruding portion of the drive shaft 111 away from the angle disc 121, that is, the angle disc 121 is located between the connecting rod 112 and the pointer 122. The connecting rod 112 is rotated, and the connecting rod 112 rotates to drive the driving shaft 111 to rotate to achieve the bending angle adjustment of the ureteroscope. When the connecting rod 112 is rotated, the connecting rod 112 rotates to drive the driving shaft 111 to rotate and then drive the pointer 122 to rotate. The angle disk 121 is fixed on the operating handle 1 and remains stationary. The angle mark on the angle disk 121 can serve as an indication and reminder to the pointer 122. The angle disk 121 is provided with positive and negative angles, and the marked angle is based on the objective angle of the bending portion 22 of the ureteroscope as the standard and value, so that the bending portion 22 can be bent upward or downward and how many degrees it is bent through the external angle value. The operating handle 1 is provided with a first groove 16 and a second groove 17 for fingers to be embedded. When using the ureteroscope, the right hand grasps the operating handle 1, and the first groove 16 and the second groove 17 face forward, which is convenient for hand holding. The direction of the soft mirror operation cavity 15 is obliquely downward, so that the soft mirror operation cavity 15 is smooth. The right thumb can push the connecting rod 112 , and at this time the angle plate 121 is located on the left side of the operating handle 1 , so that the operator can observe the rotation of the pointer 122 .

[0038] The operating handle 1 is provided with an angle indicator 12. By adjusting the toggle 11 so that the pointer 122 corresponds to different values ​​on the angle indicator 12, the bending angle of the in vivo ureteroscope can be obtained according to the data of the in vitro ureteroscope, so that the operation and learning of the ureteroscope have data to rely on and quantitative standards to be implemented, which increases the convenience during the operation, reduces the difficulty of the operation, and shortens the learning curve of the ureteroscope operation.

[0039] As a variable embodiment, the angle indicating device 12 only uses an angle disc 121, which is fixed to the operating handle 1 through a protrusion 13, and a clearance cavity 14 is formed between the angle disc 121 and the operating handle 1. The connecting rod 112 is located in the clearance cavity 14 and is slidably connected to the clearance cavity 14. At this time, the connecting rod 112 can also play the role of a pointer 122, indicating on the angle line. Preferably, the connecting rod 112 on one side of the toggle member 11 can be made thinner to indicate more accurately.

[0040] As a variable embodiment, the pointer 122 can also be located between the connecting rod 112 and the angle scale 121. At this time, the connecting rod 112, the pointer 122 and the angle scale 121 are sequentially connected to the driving shaft 111 from the position close to the operating handle 1 to one end surface thereof. At this time, the angle scale 121 needs to be made of a transparent material, and the pointer 122 can be seen through the angle scale 121.

[0041] Optionally, the diameter of the angle scale 121 is larger than the width of the operating handle 1. By making the angle scale 121 larger, the angle values at the edge of the angle scale 121 are avoided from being densely arranged, which is convenient for clearly displaying the values on the angle scale 121 and makes the indication of the pointer 122 more accurate.

[0042] Optionally, an angle magnification component 8 can also be provided on the angle indicating device 12. The angle magnification component 8 is located between the toggling member 11 and the pointer 122. In this embodiment, the angle magnification component 8 includes a first gear 81, a second gear 82 and a connecting shaft 83. At this time, one end of the driving shaft 111 protruding from the operating handle 1 is fixedly connected to the first gear 81. A connecting shaft 83 is rotatably connected to the operating handle 1 on one side of the driving shaft 111. A second gear 82 is fixedly connected to the connecting shaft 83. The second gear 82 meshes with the first gear 81. One end of the connecting shaft 83 passes through the center of the angle scale 121 and protrudes from the angle scale 121. A pointer 122 is fixed to the end of the connecting shaft 83 protruding from the angle scale 121. The number of teeth and the radius of the first gear 81 and the second gear 82 are set according to the actual situation. By setting different transmission ratios, the second gear 82 can magnify the rotation of the first gear 81 by different multiples, and then magnify the rotation angle of the pointer 122.

[0043] The connecting rod 112 can only rotate within a certain angle range, and the rotation range is limited. The pointer 122 can rotate within the circumference, and the rotation angle range is larger. By setting the angle magnification component 8, the slight rotation of the connecting rod 112 is transmitted to the pointer 122 through the angle magnification component 8 for rotation magnification, making the indication of the pointer 122 more accurate. At this time, the rotation angle of the toggling member 11 and the rotation angle of the bending portion 22 are not proportional, so the angle values on the angle scale 121 are not evenly distributed either.

[0044] Optionally, a friction member is provided between the operating handle 1 and the connecting rod 112, so that there is a certain frictional force between the operating handle 1 and the connecting rod 112, so that the connecting rod 112 does not change the bending direction of the flexible ureteroscope without external force, avoiding sudden changes in the bending angle of the flexible ureteroscope in the body and making it safer to use.

[0045] Optionally, a marking line 3 is provided on the circumferential surface of the lens body 2 along the radial direction.

[0046] Specifically, the marking line 3 is provided on the insertion part 23. There are at most four marking lines 3, and multiple marking lines 3 are regularly distributed along the circumferential surface of the insertion part 23, and the colors of the multiple marking lines 3 are different. In this embodiment, the marking line 3 is provided as three. The circumferential direction of the insertion part 23 is 360°. Taking the highest point on the distal side of the insertion part 23 as 0°, marking lines 3 of different colors are respectively provided at the positions of 0°, 90° and 270°. In this way, when rotating the insertion part 23, it is possible to observe and judge whether the rotation is in place according to the different colored marking lines 3.

[0047] Optionally, the flexible ureteroscope further includes an external connection line 4. The external connection line 4 is provided on the operation handle 1 and is arranged at the end far from the mirror body 2. One end of the external connection line 4 is provided with a USB interface. In the prior art, a special interface is adopted at one end of the external connection line 4. In this embodiment, a USB interface is added, which increases the adaptability of the external connection line 4.

[0048] Optionally, a two-dimensional code is provided on the operation handle 1, which is the ID card of the flexible ureteroscope. The two-dimensional code can be scanned by a mobile phone, so that the mobile terminal device is communicatively connected with the flexible ureteroscope, and the situation captured by the micro camera 5 of the flexible ureteroscope is transmitted to the mobile terminal device in real time for display, and the image can be viewed synchronously remotely.

[0049] The implementation process of this embodiment is as follows: An angle indicating device 12 with an angle scale 121 and a pointer 122 is installed on the operation handle 1 of the flexible ureteroscope. There are positive and negative angle values on the angle scale 121, and the marked angles are based on the objective angles of the rotation of the bending part 22 of the flexible ureteroscope as the standard and values. In this way, it is possible to obtain whether the bending part 22 of the flexible ureteroscope bends upward or downward and by how many degrees through the angle values outside the body. Marking lines 3 are provided on the insertion part 23 of the flexible ureteroscope. In this way, when rotating the insertion part 23, it is possible to observe and judge whether the rotation is in place according to the different colored marking lines 3.

[0050] After the flexible ureteroscope in this embodiment is placed in the body, the rotation direction and angle of the bending part 22 of the ureter are accurately judged according to the data on the angle scale 121 on the flexible ureteroscope outside the body and the color of the marking line 3 on the mirror body 2. Thus, the operation of the flexible ureteroscope becomes simple and easy, and there is a quantitative standard, which provides technical support for formulating a quantitative operation specification for the operation of the ureteroscope.

[0051] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A flexible ureteroscope, comprising an operating handle (1), wherein a toggling member (11) for controlling the bending direction and angle of the flexible ureteroscope is provided on the operating handle (1), and the toggling member (11) is rotatably connected to the operating handle (1), characterized in that: The operating handle (1) is provided with an angle indicating device (12), and the angle indicating device (12) is located on one side of the toggle member (11); the angle indicating device (12) comprises an angle disk (121), the angle disk (121) is fixed on the operating handle (1), and the toggle member (11) is rotatably connected to the angle disk (121); the angle indicating device (12) further comprises a pointer (122), the pointer (122) is fixed on the toggle member (11), and the pointer (122) is rotatably connected to the angle disk (121); the toggle member (11) comprises a drive shaft (111) and a connecting rod (112), the drive shaft (111) The drive shaft (111) is rotatably connected to the operating handle (1), one end of the drive shaft (111) is inserted into the operating handle (1), and the other end is protruded from the operating handle (1), one end of the connecting rod (112) is fixed to the protruding portion of the drive shaft (111), and the pointer (122) is fixed to the drive shaft (111); the connecting rod (112) is rotated, and the connecting rod (112) drives the drive shaft (111) to rotate, thereby adjusting the bending angle of the in-vivo ureteroscope; the angle indicating device (12) is also provided with an angle magnifying component (8), and the angle magnifying component (8) is located between the toggle member (11) and the pointer (122).

2. The flexible ureteroscope according to claim 1, characterized in that: The angle disc (121) is fixed to the operating handle (1) via a provided protrusion (13), and a clearance cavity (14) for the connection rod (112) to rotate is formed between the angle disc (121) and the operating handle (1).

3. The flexible ureteroscope according to claim 1, characterized in that: The diameter of the angle disc (121) is greater than the width of the operating handle (1).

4. The flexible ureteroscope according to claim 1, characterized in that: It also comprises a mirror body (2), wherein a marking line (3) is provided on the circumferential surface of the mirror body (2) in a radial direction.

5. The flexible ureteroscope according to claim 4, characterized in that: There are at most four marking lines (3), the marking lines (3) have different colors, and the marking lines (3) are regularly distributed along the circumference of the mirror body (2).

6. The flexible ureteroscope according to claim 1, characterized in that: It also includes an external cable (4), one end of which is provided with a USB interface.

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