Ureteroscope device

Abstract

The present invention discloses a ureteroscope device, wherein a ureteroscope device includes a flexible endoscope body and a sheath body for supporting the urethra to form a passage for the flexible endoscope body to enter, the flexible endoscope body includes a micro camera for imaging and a holmium laser fiber for cutting stones, the outer wall of the flexible endoscope body is provided with a guide groove and a positioning groove, the sheath body is connected to a balloon for cooperating with the flexible endoscope body to expand the urethral stricture area, the outer side of the sheath body is fixedly connected to a cross trachea for inflating the balloon, the outer side of the sheath body is axially slidably connected to a socket, the socket is connected to an adjustment component for driving the sheath body to automatically move, and the adjustment component includes a pressure sensor for detecting the pressure in the ureter. The technical solution of the present invention is intended to reduce surgical costs and shorten the surgical cycle, and improve the stability of the surgical process.

Description

Technical Field

[0001] The present invention relates to the technical field of ureteroscope devices, and in particular to a ureteroscope device. Background Art

[0002] The construction of a ureteroscopic surgical pathway is a key step to ensure the success of the operation. In order to ensure that the flexible endoscope can smoothly enter the renal pelvis and complete subsequent operations, a variety of instruments are usually required. First, the ureteroscopic flexible endoscope (including the camera and channel) is used to image and guide surgical instruments, such as holmium laser fiber and stone retrieval basket. Secondly, the guide wire and dilator act as a guide to help smoothly enter the urethra and expand the channel. Finally, the sheath is used to support the urethra, form a pathway, and ensure that the flexible endoscope can enter smoothly. The usual surgical steps are to first form a pathway in the urethra through a guide wire and dilator, and then insert the flexible endoscope into the sheath until it reaches the location of the stone. For the treatment of stones, holmium laser lithotripsy is usually used. Small stones can be discharged naturally, while larger fragments are removed through the stone retrieval basket.

[0003] However, in the case of ureteral strictures, the larger diameter of the sheath makes it difficult to pass through the stricture, preventing smooth access. Conventional techniques typically require the placement of a urethral stent one to two weeks before lithotripsy surgery to dilate the stricture and provide access for subsequent lithotripsy. This means the entire treatment process needs to be divided into two stages, increasing the total time and cost of the operation. Summary of the Invention

[0004] The main purpose of the present invention is to provide a ureteroscope device, which aims to reduce the cost of surgery and shorten the operation period, and improve the stability of the operation process.

[0005] To achieve the above objectives, the present invention proposes a ureteroscope device, comprising a ureteroscope body and a sheath body for supporting the urethra to form a passage for the ureteroscope body to enter. The ureteroscope body includes a micro camera for imaging and a holmium laser fiber for cutting stones.

[0006] The outer wall of the soft endoscope body is provided with a guide groove and a positioning groove, the sheath body is connected to a balloon for cooperating with the soft endoscope body to dilate the urethral stricture area, the outer side of the sheath body is fixedly connected to a cross trachea for inflating the balloon, the outer side of the sheath body is axially slidably connected to a receiving seat, the receiving seat is connected to an adjustment component for driving the sheath body to move automatically, the adjustment component includes a positioning ring, a pressure sensor and a positioning rope;

[0007] The positioning ring is slidably connected to the sheath body;

[0008] Each of the pressure sensors is fixedly connected to a side of each cross trachea facing the positioning ring, and the pressure sensor is used to detect the pressure in the ureter;

[0009] The positioning rope sleeve is arranged on the positioning ring, one end of the positioning rope is fixedly connected to the outer wall of the receiving seat, and the other end of the positioning rope is connected to a clamping component for limiting the relative position of the positioning rope.

[0010] In a possible implementation, the positioning component includes:

[0011] A positioning plate, the positioning plate is fixedly connected in the receiving seat, a transmission sleeve is rotatably connected in the positioning plate, the transmission sleeve abuts against the inner wall of the receiving seat, and a hook is fixedly connected to the outer wall of the transmission sleeve for fixing with the end of the positioning rope away from the outer wall of the receiving seat;

[0012] A limiting cylinder is fixedly connected to the inner wall of the receiving seat, a locking cylinder is slidably connected to the limiting cylinder, a locking spring is provided between the limiting cylinder and the locking cylinder, and the inner wall of the transmission sleeve is locked with the outer wall of the locking cylinder;

[0013] A pressing column, the pressing column is fixedly connected to the upper end of the locking cylinder;

[0014] The driving component drives the rotation of the transmission sleeve using the feedback information from the pressure sensor.

[0015] In a possible implementation manner, a tooth block is provided on the inner wall of the transmission sleeve, and a plurality of tooth grooves are provided on the outer wall of the positioning cylinder, and the tooth block is used to engage with each of the tooth grooves.

[0016] In a possible implementation, a first limiting surface is formed on one end of the transmission sleeve facing the pressing post, and a second limiting surface is formed on one end of the pressing post facing the transmission sleeve.

[0017] In one possible implementation, the drive assembly includes:

[0018] The dial is rotatably connected to the locking plate, and the lower side of the dial is coaxially fixedly connected to a first gear, and the first gear is meshed with the outer wall of the transmission sleeve.

[0019] In a possible embodiment, the lower side of the transmission sleeve is engaged with a drive shaft, the drive shaft is rotatably connected in the receiving seat, and one end of the drive shaft facing the outside of the receiving seat is connected to the micro motor.

[0020] The technical solution of the present invention limits the relative position of the soft endoscope body by the balloon inside the sheath body, so that the soft endoscope body and the sheath body can stably pass through the narrow section of the ureter. By real-time monitoring of the pressure in the channel, the volume of gas input into the balloon is changed to ensure the safety and stability during the surgical operation, so that lithotripsy can be completed in only one stage even in the case of ureteral stenosis, thereby reducing surgical costs and shortening the surgical cycle. In addition, medical staff can more accurately analyze the resistance of the sheath body during movement by adjusting the data transmitted by the pressure sensor in the component, and adjust the moving force and distance according to the resistance, thereby ensuring that the relative position of the sheath body in the ureter is stable and precise, reducing the risk of damage to the inner wall of the ureter, and improving operational accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the structure of a ureteroscope device of the present invention Figure 1 ;

[0023] Figure 2 A schematic diagram of the structure of a ureteroscope device of the present invention Figure 2 ;

[0024] Figure 3 A partial cross-sectional diagram of a flexible ureteroscope device of the present invention Figure 1 ;

[0025] Figure 4 A partial cross-sectional diagram of a flexible ureteroscope device of the present invention Figure 2 ;

[0026] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0027] Figure 6 for Figure 4 A magnified schematic diagram of middle B;

[0028] Figure 7 This is a schematic diagram of a partial explosion of a ureteroscope device according to the present invention.

[0029] Description of Figure Numbers:

[0030] 11. Soft endoscope body; 12. Micro camera; 13. Holmium laser fiber; 14. Guide groove; 15. Positioning groove; 16. Balloon; 17. Cross trachea; 18. Socket; 19. Sheath body; 21. Positioning ring; 22. Pressure sensor; 23. Positioning rope; 31. Positioning plate; 32. Transmission sleeve; 321. First limiting surface; 322. Second limiting surface; 33. Hook; 34. Limiting cylinder; 35. Positioning cylinder; 36. Positioning spring; 37. Pressing column; 38. Gear block; 39. Tooth groove; 41. Dial; 42. First gear; 43. Drive shaft.

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0033] The present invention provides a ureteroscope device. Example 1

[0034] Reference Figures 1 to 7 The soft endoscope body 11 includes a sheath body 19 for supporting the urethra to form a passage for the soft endoscope body 11 to enter. The soft endoscope body 11 includes a micro camera 12 for imaging and a holmium laser fiber 13 for cutting stones.

[0035] The outer wall of the soft endoscope body 11 is provided with a guide groove 14 and a positioning groove 15. A balloon 16 is connected to the sheath body 19 for cooperating with the soft endoscope body 11 to dilate the urethral stricture area. A cross trachea 17 is fixedly connected to the outside of the sheath body 19 for inflating the balloon 16. A receiving seat 18 is axially slidably connected to the outside of the sheath body 19. An adjustment component is connected to the receiving seat 18 for driving the sheath body 19 to move. The adjustment component includes a pressure sensor 22 for detecting the pressure in the ureter.

[0036] When the sheath body 19 moves to the ureteral stenosis, since the outer diameter of the sheath body 19 is larger than the stenosis, the endoscope body 11 is driven to extend forward. The endoscope body 11 can pass through the stenosis and move until the guide groove 14 and the balloon 16 are aligned. Then, the balloon 16 is inflated to gradually compress the stenosis after it expands. When the balloon 16 expands, it expands along the gap between the inner wall of the stenosis and the endoscope body 11, and finally completes the expansion of the stenosis. The dilation process is usually performed under local anesthesia or general anesthesia, and generally lasts 30 minutes to 1 hour, depending on the degree and location of the stenosis. During the dilation process, the pressure and speed need to be monitored in real time to ensure that the dilation pressure is controlled through the air pressure feedback of the balloon 16 to avoid excessive dilation that may cause urethral damage or bleeding. After the dilation is completed, the balloon 16 is slowly deflated and continues to push the sheath body 19, so that its movement process temporarily acts as a stent to support the stenosis segment. After the soft endoscope body 11 reaches the target position, the soft endoscope body 11 is extended until the positioning groove 15 and the balloon 16 are aligned, and the balloon 16 is slowly inflated again to ensure that the relative position of the soft endoscope body 11 and the sheath body 19 is fixed, thereby improving the accuracy and stability of the operation. During the operation, the pressure detected on the outside of the balloon 16 will also be fed back in real time to detect the pressure value in the channel. If the pressure value is too high, the balloon 16 can be deflated to open the channel opening and relieve the pressure in the channel to ensure the safety of the operation. Even in the case of ureteral stenosis, lithotripsy can be completed in only one stage, reducing the cost of surgery and shortening the operation cycle.

[0037] By adjusting the data transmitted by the pressure sensor 22 in the component, medical staff can more accurately analyze the resistance of the sheath body 19 during movement, and adjust the movement force and distance according to the size of the resistance, thereby ensuring that the relative position of the sheath body 19 in the ureter is stable and precise, reducing the risk of damage to the inner wall of the ureter, and improving operational accuracy.

[0038] Reference Figures 1 to 7 , the regulation components include:

[0039] A positioning ring 21 is slidably connected to the sheath body 19;

[0040] Each pressure sensor 22 is fixedly connected to one side of each cross air pipe 17 facing the positioning ring 21;

[0041] The positioning rope 23 is sleeved on the positioning ring 21. One end of the positioning rope 23 is fixedly connected to the outer wall of the receiving seat 18. The other end of the positioning rope 23 is connected to a positioning component for limiting the relative position of the positioning rope 23.

[0042] The adjustment component is used to drive the sheath body 19 to move stably. The data transmitted by the pressure sensors 22 on the upper and lower sides are used to more accurately analyze the resistance to the movement of the sheath body 19. The force and distance of the movement of the sheath body 19 are then adjusted according to the resistance. This ensures the stability and accuracy of the relative position of the sheath body 19 in the ureter, making the movement of the sheath body 19 safer, reducing the risk of damage to the inner wall of the ureter, and improving the operation accuracy.

[0043] Furthermore, thanks to the automatic retraction function of the locking assembly, during surgery, after the patient's surgical position is first secured, the receiving seat 18 is removably attached to an operating table or guardrail on one side of the operating table, thereby ensuring the stable position of the receiving seat 18. At this point, the sheath body 19 is effectively fixed relative to the patient's ureter. Next, utilizing the locking assembly's retraction function and feedback from the pressure sensor 22, an appropriate pressure threshold is set to automatically control the force and distance of the retraction. Compared to traditional manual operation, this automatic control method significantly improves the convenience and safety of the surgical process. This technology allows surgeons to reduce the time spent concentrating during the initial stages of surgery, thereby reducing unnecessary mental effort and alleviating psychological stress and labor intensity. Furthermore, the automated feeding process provides faster pressure feedback than manual operation, ensuring a more precise relative position of the sheath body 19 within the ureter and reducing the risk of ureteral injury during surgery. The constant automatic feed speed further optimizes friction control, ensuring smooth advancement of the sheath body 19 within the ureter. Taking into account the differences in the inner diameter of the ureter among different patients, the safety and stability of different patients during surgery can be ensured by adjusting the feeding speed and constant speed control.

[0044] Reference Figures 3 to 7 , the card position components include:

[0045] The locking plate 31 is fixedly connected to the receiving seat 18. A transmission sleeve 32 is rotatably connected to the locking plate 31. The transmission sleeve 32 abuts against the inner wall of the receiving seat 18. A hook 33 is fixedly connected to the outer wall of the transmission sleeve 32 for fixing the end of the positioning rope 23 away from the outer wall of the receiving seat 18;

[0046] The limiting cylinder 34 is fixedly connected to the inner wall of the receiving seat 18. A locking cylinder 35 is slidably connected to the limiting cylinder 34. A locking spring 36 is provided between the limiting cylinder 34 and the locking cylinder 35. The inner wall of the transmission sleeve 32 is locked with the outer wall of the locking cylinder 35.

[0047] A pressing post 37, which is fixedly connected to the upper end of the locking cylinder 35;

[0048] The driving component drives the rotation of the transmission sleeve 32 using the feedback information of the pressure sensor 22;

[0049] After the locking assembly presses the pressing post 37, the driving assembly rotates the transmission sleeve 32, thereby causing the hook ring 33 to pull the positioning rope 23, thereby driving the sheath body 19 to move stably toward the urethra through the positioning rope 23. Then, when the pressure sensor 22 detects that the pressure exceeds the specified pressure data, the pressing post 37 is immediately released. Under the release of the spring force of the locking spring 36, the inner wall of the transmission sleeve 32 and the outer wall of the locking tube 35 are quickly engaged, which helps to limit the relative position of the sheath body 19 entering the ureter and ensure the accuracy and stability of the relative position of the sheath body 19;

[0050] In addition to the automatic advancement of the sheath body 19 into the urethra by the drive assembly via the positioning cable 23, a new mechanical protection design, a pressing post 37, has been added. This post 37 is designed to quickly stop the automatic advancement of the sheath body 19 if the pressure sensor 22 returns abnormal data or the patient's physical condition deteriorates. The presence of the pressing post 37 further reduces the possibility of accidental contact, ensuring the safety of the advancement process. During surgery, if the surgeon needs to temporarily step away to observe the patient's ureteral wall as viewed by the micro-camera 12, releasing the pressing post 37 will automatically halt the advancement process. This not only prevents misoperation by non-surgeon personnel but also allows the surgeon more time and space to assess the patient's condition, enabling more accurate assessment and decision-making. After advancement is stopped, the distance between the sheath body 19 and the patient's ureteral wall remains relatively constant, meaning the surgeon no longer needs to continuously hold the sheath body 19, saving energy and improving surgical efficiency. Furthermore, any loss of strength during surgery will not damage the ureteral wall, further ensuring surgical safety for the patient. In subsequent stone-cutting operations, surgeons will have more physical strength to ensure the safety of patients and the effectiveness of the operation, making the entire surgical process more efficient, precise and safe.

[0051] Reference Figure 7 The inner wall of the transmission sleeve 32 is provided with a tooth block 38 , and the outer wall of the clamping cylinder 35 is provided with a plurality of tooth grooves 39 . The tooth block 38 is used to clamp the tooth grooves 39 .

[0052] Reference Figures 2 to 3 and Figure 7 The transmission sleeve 32 has a first limiting surface 321 on one end thereof facing the pressing post 37 , and the pressing post 37 has a second limiting surface 322 on one end thereof facing the transmission sleeve 32 ;

[0053] When the pressing column 37 is subjected to a pressing force toward the transmission sleeve 32, the maximum downward movement distance of the pressing column 37 is limited by the opening of the first limiting surface 321 and the second limiting surface 322, so that when the user presses the pressing column 37, the engagement between the inner wall of the transmission sleeve 32 and the outer wall of the locking tube 35 can be more clearly determined, thereby making the surgical process more stable.

[0054] Reference Figures 1 to 3 and Figure 7 , the drive components include:

[0055] The dial 41 is rotatably connected to the locking plate 31 , and a first gear 42 is coaxially fixedly connected to the lower side of the dial 41 , and the first gear 42 is engaged with the outer wall of the transmission sleeve 32 ;

[0056] When the user inserts the sheath body 19 into the urethra along the guide wire, the movement of the sheath body 19 is a slow and steady process because the urethra is very narrow and fragile. Through the rotation of the dial 41 in the drive device, since the diameter ratio between the first gear 42 and the transmission sleeve 32 is relatively large, the rotation of the first gear 42 drives the transmission sleeve 32 to rotate slowly, and then the positioning rope 23 drives the sheath body 19 to move slowly toward the urethra, so that the sheath body 19 can be delivered into the ureter more stably, avoiding ureteral damage caused by violent operation, and improving the safety of the operation. Example 2

[0057] This example improves the working mode of the drive component based on Example 1;

[0058] Reference Figures 1 to 7 The lower side of the transmission sleeve 32 is engaged with a drive shaft 43, and the drive shaft 43 is rotatably connected to the receiving seat 18. One end of the drive shaft 43 facing the outer side of the receiving seat 18 is connected to the micro motor;

[0059] The transmission sleeve 32 is directly driven to rotate by the micro motor, so that the data transmitted by the pressure sensor 22 can be transmitted to the micro motor more accurately, and then through automated and precise analysis, the delivery distance inside the sheath body 19 is limited, the sheath body 19 is automatically pushed, and ureteral damage caused by violent operation is avoided, thereby improving the safety of the operation.

[0060] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0061] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A ureteroscope device, comprising a ureteroscope body (11) and a sheath body (19) for supporting the urethra to form a passage for the ureteroscope body (11) to enter, wherein the ureteroscope body (11) comprises a micro camera (12) for imaging and a holmium laser fiber (13) for cutting stones, characterized in that: The outer wall of the soft endoscope body (11) is provided with a guide groove (14) and a positioning groove (15); the sheath body (19) is internally connected with a balloon (16) for cooperating with the soft endoscope body (11) to expand the urethral stricture area; the outer side of the sheath body (19) is fixedly connected with a cross trachea (17) for injecting air into the balloon (16); the outer side of the sheath body (19) is axially slidably connected with a receiving seat (18); the receiving seat (18) is internally connected with an adjustment component for driving the sheath body (19) to move; the adjustment component includes a positioning ring (21), a pressure sensor (22) and a positioning rope (23); The positioning ring (21) is slidably connected to the sheath body (19); Each of the pressure sensors (22) is fixedly connected to a side of each cross trachea (17) facing the positioning ring (21), and the pressure sensor (22) is used to detect the pressure in the ureter; The positioning rope (23) is sleeved on the positioning ring (21), one end of the positioning rope (23) is fixedly connected to the outer wall of the receiving seat (18), and the other end of the positioning rope (23) is connected to a positioning assembly for limiting the relative position of the positioning rope (23).

2. The flexible ureteroscope device according to claim 1, characterized in that: The positioning component includes: A positioning plate (31), the positioning plate (31) is fixedly connected in the receiving seat (18), a transmission sleeve (32) is rotatably connected in the positioning plate (31), the transmission sleeve (32) abuts against the inner wall of the receiving seat (18), and a hook (33) is fixedly connected to the outer wall of the transmission sleeve (32) for fixing with the end of the positioning rope (23) away from the outer wall of the receiving seat (18); A limiting cylinder (34), wherein the limiting cylinder (34) is fixedly connected to the inner wall of the receiving seat (18), a locking cylinder (35) is slidably connected to the limiting cylinder (34), a locking spring (36) is provided between the limiting cylinder (34) and the locking cylinder (35), and the inner wall of the transmission sleeve (32) is locked with the outer wall of the locking cylinder (35); A pressing column (37), wherein the pressing column (37) is fixedly connected to the upper end of the locking cylinder (35); The driving component drives the rotation of the transmission sleeve (32) using feedback information from the pressure sensor (22).

3. The flexible ureteroscope device according to claim 2, characterized in that: The inner wall of the transmission sleeve (32) is provided with a tooth block (38), and the outer wall of the clamping cylinder (35) is provided with a plurality of tooth grooves (39). The tooth block (38) is used for clamping the tooth grooves (39).

4. The flexible ureteroscope device according to claim 2, characterized in that: The transmission sleeve (32) has a first limiting surface (321) at one end thereof facing the pressing column (37), and the pressing column (37) has a second limiting surface (322) at one end thereof facing the transmission sleeve (32).

5. The flexible ureteroscope device according to claim 2, characterized in that: The drive assembly includes: A dial (41) is rotatably connected to the locking plate (31), and a first gear (42) is coaxially fixedly connected to the lower side of the dial (41), and the first gear (42) is meshed with the outer wall of the transmission sleeve (32).

6. The flexible ureteroscope device according to claim 5, characterized in that: The lower side of the transmission sleeve (32) is meshed and connected to a drive shaft (43), and the drive shaft (43) is rotatably connected in the receiving seat (18). One end of the drive shaft (43) facing the outside of the receiving seat (18) is connected to the micro motor.

Images