Ureteral flexible mirror

Abstract

The utility model discloses a ureteral flexible mirror belongs to medical instrument technical field, including handle shell, one end of handle shell is rotatively connected with joint, the outside fixed connection of joint has mirror body sleeve, the other end fixed connection of handle shell has first channel pipe, the end of first channel pipe is communicated with first sheath pipe channel, first sheath pipe channel sets up inside handle shell, the inside fixed connection of handle shell has connecting block, and one end of first sheath pipe channel is inserted in the inside of connecting block, the utility model discloses a first channel pipe and second channel pipe are set up, better satisfy clinical treatment demand, when perfusion physiological saline maintains clear vision and operation space, another channel carries out operation, guarantees operation visual field clear, avoids the tissue damage because of visual field fuzzy, improves the operation convenience, solved the single problem of existing ureteral flexible mirror working channel.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a flexible ureteroscope. Background Technology

[0002] Flexible ureteroscopy for treating urinary tract stones offers several advantages over percutaneous nephrolithotomy (PCNL), as the flexible endoscope allows direct access to the renal pelvis and calyces via the urethra. This results in less trauma, fewer complications, and avoidance of risks such as kidney damage and bleeding. For kidney stones smaller than 2 cm in diameter, flexible ureteroscopy is a significantly better option. As a novel lithotripsy and stone removal instrument, flexible ureteroscopy is increasingly widely used in clinical practice.

[0003] The existing flexible ureteroscope has only one working channel, which has certain limitations in practical use and cannot meet clinical needs well. For example, when it is necessary to infuse normal saline, maintain a clear field of vision and surgical space, it is not possible to insert a stone retrieval basket to grab stones at the same time. Therefore, a flexible ureteroscope is proposed. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, one objective of this utility model is to provide a flexible ureteroscope that improves operational convenience and solves the problem of the single working channel of existing flexible ureteroscopes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible ureteroscope, comprising a handle shell, a connector rotatably connected to one end of the handle shell, an endoscope sleeve fixedly connected to the outside of the connector, a first channel tube fixedly connected to the other end of the handle shell, the end of the first channel tube communicating with a first sheath channel, the first sheath channel being disposed inside the handle shell, a connecting block fixedly connected inside the handle shell, one end of the first sheath channel being inserted into the inside of the connecting block, a second channel tube fixedly connected inside the handle shell, one end of the second channel tube being inserted into the connecting block, a second sheath channel fixedly connected inside the connecting block, the second sheath channel communicating with the second channel tube and the first sheath channel, one end of the second sheath channel being inserted into the inside of the endoscope sleeve.

[0007] Preferably, a knob is installed inside the handle housing, and a push rod is rotatably connected to the outside of the handle housing, with one end of the push rod fixedly connected to the knob.

[0008] Preferably, the knob is externally fixedly connected to two control lines, and both ends of the two control lines are fixedly connected to both ends of the endpiece sleeve.

[0009] Preferably, a partition is fixedly connected inside the handle housing, and a first positioning plate and a second positioning plate are installed on the partition, with the control line passing through the control line and the second positioning plate.

[0010] Preferably, a mounting plate is fixedly connected inside the handle shell, a circuit board is mounted on the mounting plate, a lens assembly is mounted outside the lens sleeve, the lens assembly is electrically connected to the circuit board, a fixing block is fixedly connected outside the handle shell, a data cable is fixedly connected outside the fixing block, and the data cable is electrically connected to the circuit board.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, by setting up a first channel tube and a second channel tube, allows the sheath tube to enter the second channel tube after passing through either the first or second channel tube, thereby entering the endoscope cannula and exiting from the end of the endoscope cannula. This better meets the needs of clinical treatment. While maintaining a clear field of vision and surgical space through the infusion of normal saline, the other channel is used for surgical operations, ensuring a clear surgical field of vision, avoiding tissue damage caused by blurred vision, improving operational convenience, and solving the problem of the single working channel of existing flexible ureteroscopes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the flexible ureteroscope of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first channel tube in the flexible ureteroscope of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the first sheath channel in the flexible ureteroscope of this utility model;

[0016] Figure 4 This is a cross-sectional view of the connecting block in the flexible ureteroscope of this invention.

[0017] Figure 5 The ureteroscope of this utility model Figure 3 A magnified structural diagram of area A in the diagram.

[0018] In the diagram: 1. Handle housing; 2. First channel tube; 3. Second channel tube; 5. Connector; 6. Lens body sleeve; 7. Fixing block; 8. Data cable; 9. Push rod; 10. Knob; 11. Control cable; 12. First positioning plate; 13. Second positioning plate; 14. Partition; 15. First sheath tube channel; 16. Connecting block; 17. Second sheath tube channel; 18. Mounting plate; 19. Circuit board; 20. Lens body assembly. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 This utility model provides a flexible ureteroscope, comprising: a handle shell 1, a connector 5 rotatably connected to one end of the handle shell 1, a scope sheath 6 fixedly connected to the outside of the connector 5, a first channel tube 2 fixedly connected to the other end of the handle shell 1, a first sheath channel 15 connected to the end of the first channel tube 2, the first sheath channel 15 being disposed inside the handle shell 1, a connecting block 16 fixedly connected inside the handle shell 1, one end of the first sheath channel 15 being inserted into the inside of the connecting block 16, a second channel tube 3 fixedly connected inside the handle shell 1, one end of the second channel tube 3 being inserted into the connecting block 16, a second sheath channel 17 fixedly connected inside the connecting block 16, the second sheath channel 17 communicating with the second channel tube 3 and the first sheath channel 15, and one end of the second sheath channel 17 being inserted into the inside of the scope sheath 6.

[0021] In use, the angle of the scope sleeve 6 can be adjusted by rotating the joint 5. Both the first channel tube 2 and the second channel tube 3 can be inserted into the sheath tube. After passing through the first sheath tube channel 15 or the second channel tube 3, the sheath tube can enter the second sheath tube channel 17, thereby entering the scope sleeve 6 and exiting from the port of the scope sleeve 6.

[0022] The handle housing 1 has a knob 10 installed inside, and a push rod 9 is rotatably connected to the outside of the handle housing 1. One end of the push rod 9 is fixedly connected to the knob 10.

[0023] The knob 10 is externally fixedly connected to two control lines 11. Both ends of the two control lines 11 are fixedly connected to both ends of the scope sleeve 6. The direction of the end of the scope sleeve 6 can be controlled by the push rod 9, the knob 10 and the control lines 11.

[0024] In order to limit the control line 11, a partition 14 is fixedly connected inside the handle housing 1. A first positioning plate 12 and a second positioning plate 13 are installed on the partition 14, and the control line 11 passes through the control line 11 and the second positioning plate 13.

[0025] The handle housing 1 has an internally fixed mounting plate 18 with a circuit board 19 mounted on it. The lens assembly 20 is mounted on the outside of the lens sleeve 6 and is electrically connected to the circuit board 19. The handle housing 1 has an externally fixed mounting block 7 with a data cable 8. The data cable 8 is electrically connected to the circuit board 19. Data from the lens assembly 20 is transferred to the data cable 8 via the circuit board 19. The data cable 8 is used to connect to a terminal device.

[0026] The mirror assembly 20 includes a miniature camera and a light source.

[0027] Based on the above technical solution, the working steps of this solution are summarized as follows: In use, the angle of the scope sleeve 6 can be adjusted by rotating the joint 5. The first channel tube 2 and the second channel tube 3 can be inserted into the sheath tube. After passing through the first sheath tube channel 15 or the second channel tube 3, the sheath tube can enter the second sheath tube channel 17, thereby entering the scope sleeve 6 and exiting from the port of the scope sleeve 6.

[0028] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible ureteroscope, characterized by: The device includes a handle housing (1), one end of which is rotatably connected to a connector (5), and a lens sleeve (6) is fixedly connected to the outside of the connector (5). The other end of the handle housing (1) is fixedly connected to a first channel tube (2), the end of which is connected to a first sheath tube channel (15). The first sheath tube channel (15) is located inside the handle housing (1). A connecting block (16) is fixedly connected inside the handle housing (1). One end of the first sheath tube channel (15) is inserted into the inside of the connecting block (16). A second channel tube (3) is fixedly connected inside the handle housing (1). One end of the second channel tube (3) is inserted into the connecting block (16). A second sheath tube channel (17) is fixedly connected inside the connecting block (16). The second sheath tube channel (17) communicates with the second channel tube (3) and the first sheath tube channel (15). One end of the second sheath tube channel (17) is inserted into the inside of the lens sleeve (6).

2. The flexible ureteroscope according to claim 1, wherein: A knob (10) is installed inside the handle housing (1), and a push rod (9) is rotatably connected to the outside of the handle housing (1). One end of the push rod (9) is fixedly connected to the knob (10).

3. The flexible ureteroscope of claim 2, wherein: The knob (10) has two control lines (11) fixedly connected to its exterior. Both ends of the two control lines (11) are fixedly connected to both ends of the lens sleeve (6).

4. The flexible ureteroscope of claim 3, wherein: A partition (14) is fixedly connected inside the handle housing (1). A first positioning plate (12) and a second positioning plate (13) are installed on the partition (14). The control line (11) passes through the control line (11) and the second positioning plate (13).

5. A flexible ureteroscope according to claim 1, characterized in that: An installation plate (18) is fixedly connected inside the handle shell (1), and a circuit board (19) is installed on the installation plate (18). A lens assembly (20) is installed outside the lens sleeve (6), and the lens assembly (20) is electrically connected to the circuit board (19). A fixing block (7) is fixedly connected outside the handle shell (1), and a data cable (8) is fixedly connected outside the fixing block (7), and the data cable (8) is electrically connected to the circuit board (19).

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