Flexible ureteroscope with multidirectional turning function

Abstract

The flexible ureteroscope comprises a handle, a knob a and a knob b are arranged on the surface of the handle, a sheathing canal is arranged at the end of the handle, a steering mechanism is arranged at the end of the sheathing canal, a guide wire is arranged on the surface of the steering mechanism, and the other end of the guide wire is correspondingly wound on the knob a and the knob b. The flexible ureteroscope lithotripsy device has the advantages that the rotary knob a and the rotary knob b are used for controlling the stretching condition of the guide wire to control the steering mechanism, so that the steering mechanism turns in multiple directions, the lithotripsy device at the end of the flexible ureteroscope is conveyed to a designated position for lithotripsy, lithotripsy efficiency is improved, and the risk of septicopyemia of a patient is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a flexible ureteroscope with multi-directional turning. Background Technology

[0002] With the development of medical technology, the treatment of ureteral stones has made leaps and bounds. From the initial ureterotomy to ureteroscopic lithotripsy, it can handle most ureteral stones in clinical practice. However, for stones in the renal pelvis and calyces, the rigid ureteroscope, due to its inability to bend, cannot accurately locate and break the stones. Therefore, the flexible ureteroscope, with its ability to bend, has become a powerful tool for breaking up calyceal stones. However, in clinical practice, the current flexible ureteroscope only has one turning point. If encountering hidden stones in the lower calyx or patients with variations in the internal structure of the kidney, it is difficult to locate and effectively break the stones by adjusting the flexible endoscope lens, greatly increasing the difficulty of the operation, reducing the efficiency of stone fragmentation, and increasing the risk of sepsis the longer the operation. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a flexible ureteroscope with multi-directional turning.

[0004] The purpose of this utility model is achieved through the following technical solution: a flexible ureteroscope with multi-directional turning, including a handle, a knob a and a knob b on the surface of the handle, a sheath at the end of the handle, a turning mechanism at the end of the sheath, a guide wire on the surface of the turning mechanism, and the other end of the guide wire being wound around the knob a and knob b respectively.

[0005] Preferably, the steering mechanism includes sleeve a and sleeve b. Sleeve a is located inside sleeve b. A rotating rod a is provided at the upper end of sleeve b. The lower end of sleeve a is mounted on the rotating rod a. Sleeve b is located inside a sheath, and a rotating rod b is provided at the end of the sheath. The lower end of sleeve b is mounted on the rotating rod b. A guide wire a is provided on the surface of sleeve a. The end of the guide wire a is wound around a knob a. A guide wire b is provided on the surface of sleeve b. The end of the guide wire b is wound around a knob b.

[0006] Preferably, guide wires a and b are installed on both sides of sleeve a and sleeve b respectively.

[0007] Preferably, both knob a and knob b are mounted on both sides of the handle.

[0008] Preferably, a guide wheel a is fixedly mounted on the surface of sleeve a, and the guide wire a is in contact with the surface of the guide wheel a.

[0009] Preferably, the surface of the sleeve b is provided with a guide wheel b, and the guide wire b is in contact with the surface of the guide wheel b.

[0010] This invention has the following advantages: This invention controls the extension and retraction of the guidewire and the steering mechanism by using knobs a and b to make it turn in multiple directions, thereby sending the lithotripsy device at the end of the ureteroscope to the designated position for lithotripsy, thus improving lithotripsy efficiency and reducing the risk of sepsis in patients. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a flexible ureteroscope;

[0012] Figure 2 This is a cross-sectional structural diagram of the steering mechanism;

[0013] Figure 3 This is a schematic diagram of the steering mechanism;

[0014] In the diagram, 1-handle, 2-knob b, 3-sheath, 4-steering mechanism, 5-sleeve a, 6-rotating rod a, 7-sleeve b, 8-rotating rod b, 9-knob a, 10-guide wheel a, 11-guide wire a, 12-guide wheel b, 13-guide wire b. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this embodiment, as Figure 1 As shown, a flexible ureteroscope with multi-directional turning capabilities includes a handle 1. The surface of the handle 1 is provided with knobs a9 and b2. Preferably, knobs a9 and b2 are mounted on both sides of the handle 1. A sheath 3 is provided at the end of the handle 1, and a steering mechanism 4 is provided at the end of the sheath 3. A guidewire is provided on the surface of the steering mechanism 4, and the other end of the guidewire is wound around knobs a9 and b2. The steering mechanism 4 is controlled by adjusting the extension and retraction of the guidewire using knobs a9 and b2, allowing it to make multi-directional turns. This enables the lithotripsy device at the end of the flexible ureteroscope to be delivered to a designated location for lithotripsy, thereby improving lithotripsy efficiency and reducing the risk of sepsis in patients. In this embodiment, the lithotripsy device is an existing product, and no improvements have been made; therefore, further details will not be provided.

[0022] Furthermore, such as Figure 2As shown, the steering mechanism 4 includes a sleeve a5 and a sleeve b7. Sleeve a5 is located inside sleeve b7. A rotating rod a6 is provided at the upper end of sleeve b7, and the lower end of sleeve a5 is mounted on the rotating rod a6. Sleeve b7 is located inside sheath 3, and a rotating rod b8 is provided at the end of sheath 3. The lower end of sleeve b7 is mounted on the rotating rod b8. A guide wire a11 is provided on the surface of sleeve a5, and the end of guide wire a11 is wound around a knob a9. A guide wire b13 is provided on the surface of sleeve b7, and the end of guide wire b13 is wound around a knob b2. Furthermore, guide wires a11 and b13 are respectively installed on both sides of sleeve a5 and sleeve b7. Specifically, when a turn is required, medical staff tighten or loosen the guide wire b13 on one side of the sleeve b7 by rotating one knob b2, while the other knob b2 rotates in the opposite direction, thereby tightening or loosening the guide wire b13 on the other side of the sleeve b7. That is, when one guide wire b13 is tightened, the other guide wire b13 is loosened, and the sleeve b7 turns towards the tightening direction. When multiple turns are required, medical staff tighten or loosen the guide wire a11 on one side of the sleeve a5 by rotating one knob a9, while the other knob a9 rotates in the opposite direction, thereby tightening or loosening the guide wire a11 on the other side of the sleeve a5. That is, when one guide wire a11 is tightened, the other guide wire a11 is loosened, and the sleeve a5 turns towards the tightening direction, thus completing multi-directional turns. This allows the lithotripsy device at the end of the ureteroscope to be delivered to the designated position for lithotripsy, thereby improving lithotripsy efficiency and reducing the risk of sepsis in patients. In this embodiment, both guide wire a11 and guide wire b13 pass through the sheath tube 3 and are connected to the knob a9 or knob b2 on the handle 1. In order to facilitate the passage of guide wire a11 and guide wire b13 through the sheath tube 3, several through holes can be opened at the end of the sheath tube 3. Preferably, the through holes are distributed vertically, so as to facilitate the passage of guide wire a11 and guide wire b13 through the sheath tube 3 and the connection to the knob a9 or knob b2 on the handle 1.

[0023] In this embodiment, as Figure 3 As shown, a guide wheel a10 is fixedly mounted on the surface of sleeve a5, and guide wire a11 is in contact with the surface of guide wheel a10. Furthermore, a guide wheel b12 is provided on the surface of sleeve b7, and guide wire b13 is in contact with the surface of guide wheel b12. Specifically, the main function of guide wheel a10 and guide wheel b12 is to guide guide wire a11 and guide wire b13 during extension and retraction.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ureteroscope with multidirectional turning, characterized in that: Handle (1) is provided with knob a (9) and knob b (2) on its surface, and its end is provided with sheath tube (3), the end of which is provided with steering mechanism (4), the surface of which is provided with guide wire, and the other end of which is wound on knob a (9) and knob b (2) correspondingly. The steering mechanism (4) comprises sleeve a (5) and sleeve b (7), sleeve a (5) is located in sleeve b (7), the upper end of sleeve b (7) is provided with rotating rod a (6), the lower end of sleeve a (5) is installed on rotating rod a (6), sleeve b (7) is located in sheath tube (3), and the end of sheath tube (3) is provided with rotating rod b (8), the lower end of sleeve b (7) is installed on rotating rod b (8), the surface of sleeve a (5) is provided with guide wire a (11), the end of which is wound on knob a (9), the surface of sleeve b (7) is provided with guide wire b (13), the end of which is wound on knob b (2).

2. The ureteroscope with multi-directional turning according to claim 1, characterized in that: The two sides of sleeve a (5) and sleeve b (7) are correspondingly provided with guide wire a (11) and guide wire b (13).

3. The ureteroscope with multi-directional turning according to claim 2, characterized in that: Knob a (9) and knob b (2) are installed on both sides of handle (1).

4. The ureteroscope with multi-directional turning according to claim 3, characterized in that: The surface of sleeve a (5) is fixedly provided with guide wheel a (10), and the surface of guide wire a (11) is attached to guide wheel a (10).

5. The ureteroscope with multi-directional turning according to claim 4, characterized in that: The surface of sleeve b (7) is provided with guide wheel b (12), and the surface of guide wire b (13) is attached to guide wheel b (12).

Images