A force measuring device in ureteroscopy

Abstract

This invention relates to the field of force measuring device technology, and more particularly to a force measuring device for ureteroscopic surgery, comprising a hand handle, a clamping component, a pressure sensor, a control board, and a display screen. The hand handle has an integrally formed opposing plate at its top, with a perforation on the opposing plate. The clamping component is used to hold tubular objects used during ureteroscopic surgery and includes a base plate, rod-shaped bodies integrally formed on both sides of the upper part of the base plate and arranged opposite each other, and a clamping assembly disposed between the two rod-shaped bodies. A guide post is fixedly connected to the base plate. The pressure sensor monitors the pressure between the opposing plate and the base plate. The control board is located inside the hand handle; its input end is connected to the output ends of the two pressure sensors. By setting up the control board, pressure sensors, and an alarm device, an alarm can be triggered promptly when the force exceeds a set threshold during insertion or withdrawal, thus alerting the surgeon and reducing instances of non-standard surgical procedures.

Description

Technical Field

[0001] This invention relates to the field of force measuring device technology, and in particular to a force measuring device for ureteroscopic surgery. Background Technology

[0002] The steps of ureteroscopy are as follows: First, a guidewire is inserted into the body through the urethral opening. Second, the sheath, along with the core (with a central opening), is inserted into the body along the guidewire path. Third, the guidewire and core are removed, leaving only the sheath inside the body. Fourth, the ureteroscope is inserted into the body through the sheath. The current technology has a problem: during ureteroscopy, and during the insertion and removal of the flexible ureteroscope sheath, the operator relies on tactile judgment to determine the degree of ureteral stenosis and tension. There is no direct data or evidence to assist in this judgment, which can easily lead to serious complications such as ureteral perforation, laceration, or even rupture. Furthermore, it is difficult to accurately and smoothly communicate the issue of tactile judgment during technical instruction and peer exchanges with senior physicians, presenting limitations. Therefore, a force-measuring device for ureteroscopy is needed to address these problems. Summary of the Invention

[0003] This invention provides a force measuring device for ureteroscopic surgery. By setting up a force measuring device for ureteroscopic surgery, it is possible to measure the force during the insertion and removal of the catheter during the operation, assisting doctors to perform the operation better, and also facilitating the communication between doctors to describe accurate force data.

[0004] The technical problem solved by this invention is achieved by the following technical solution: This invention provides a force measuring device for ureteroscopic surgery, comprising a hand handle, a clamping component, a pressure sensor, a control board, and a display screen. The hand handle has an integrally formed opposing plate at its top, with perforations on the opposing plate. The clamping component is used to hold tubular objects used during ureteroscopic surgery. The clamping component includes a base plate, rod-shaped bodies integrally formed on both sides of the upper part of the base plate and arranged opposite each other, and a clamping assembly disposed between the two rod-shaped bodies. Guide columns are fixedly connected to the base plate. The pressure sensor monitors the pressure between the opposing plate and the base plate. The control board is disposed inside the hand handle; its input end is connected to the output ends of the two pressure sensors. The display screen is disposed on the hand handle and displays the pressure sensor data, and the display screen is controlled by the control board. The number of perforations and guide columns is one-to-one and at least two. The hand handle and the base plate are slidably connected through the guide columns and perforations.

[0005] Preferably, the hand handle is also provided with a warning device, which is controlled by the main control board and is a warning light and / or a speaker.

[0006] Preferably, the handheld handle is also provided with a rechargeable power source and a charging port.

[0007] Preferably, the clamping assembly includes a groove at the top of the substrate, a clamping rod slidably connected to the groove, and a tightening bolt threaded onto the rod-shaped body, wherein the tightening bolt is rotatably connected to the clamping rod.

[0008] Preferably, a flexible pad is fixedly connected to the side of the clamping rod.

[0009] Preferably, the ends of the plurality of guide columns are connected to a limit plate.

[0010] Preferably, there are two integrally formed opposing plates on the hand handle, and the two opposing plates are arranged parallel and spaced apart. There are two pressure sensors, and the two pressure sensors are used to monitor the pressure between the two opposing plates and the base plate. Both opposing plates can slide to the position of contacting the base plate.

[0011] Preferably, the display screen is a touch screen, which is also used to display a human-computer interaction screen, and the operator sets working parameters based on the operation of the human-computer interaction screen.

[0012] The beneficial effects of this invention are as follows: By incorporating a handheld handle, clamping components, pressure sensors, a control board, and a display screen, it enables precise observation of the force applied during insertion and removal of catheters into the body. This assists surgeons in performing procedures more effectively and facilitates accurate communication between doctors. Specifically, during ureteroscope insertion and withdrawal, and the insertion and removal of the flexible endoscope sheath, the force applied to the instruments is visually displayed, providing operators with relevant information and reducing serious complications such as ureteral perforation, laceration, or even rupture. The invention can calculate and assess the interference of prostate and urethral resistance on the insertion and catheterization, making the force calculation of the instruments on the ureter more accurate, improving surgical success rates and reducing related errors. Doctors can directly communicate their experience using numerical data. It can also provide a numerical source for relevant research.

[0013] By setting up a control board, pressure sensor, and alarm device, an alarm can be triggered in a timely manner when the force applied during insertion or withdrawal exceeds a set threshold, thereby alerting doctors and reducing instances of non-standard surgical procedures. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the tubular instruments used in ureteroscopic surgery according to the present invention; Figure 2 This is a schematic diagram of the structure of the flexible ureteroscope combined with the sheath of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention clamped in the sheath; Figure 4 This is a side view of the first embodiment of the present invention; Figure 5 This is a side view of the second embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram of the second embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the second embodiment of the present invention; Figure 8 This is a structural diagram showing the disassembled structure of the second embodiment of the present invention; Figure 9 This is a block diagram illustrating the circuit principle structure of the present invention.

[0016] In the diagram, 1. Extension tube; 2. Handle; 3. Flexible section; 4. Sheath; 5. Instrument insertion port; 6. Negative pressure suction port; 7. Flexible section; 8. Core; 9. Plug; 10. Clamping space; 11. Force measuring device; 12. Hand handle; 13. Base plate; 14. Guide column; 15. Limiting plate; 16. Opposing plate; 17. Pressure sensor; 18. Perforation; 19. Display screen; 20. Button; 21. Rechargeable power supply; 22. Charging port; 23. Speaker; 24. Warning light; 25. Control board; 26. Rod-shaped body; 27. Slide groove; 28. Tightening bolt; 29. ​​Clamping rod; 30. Rubber pad. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0018] To enable those skilled in the art to better understand the inventive points of this invention, the prior art of ureteroscopy involved in this invention is first described. Firstly, a guidewire, such as a zebra guidewire (not shown in the figure), is slowly inserted into the ureteral orifice through the working channel of a ureteroscope (a ureteroscope includes a rigid ureteroscope and a flexible ureteroscope, wherein a rigid ureteroscope is not shown). This guidewire is then pushed to the upper ureter or renal pelvis to establish a safe operating pathway. Next, following the guidewire, the ureteroscope is advanced into the ureter until it reaches the upper ureter or renal pelvis. After confirming that no obvious abnormalities are found, the guidewire is retained, and the ureteroscope is withdrawn along the guidewire. Then, the... Figure 1 The sheath 4 shown in Figure b (one end of the sheath 4 is a flexible section 7, and the other end has an instrument insertion port 5 and a negative pressure suction port 6) is inserted into the upper ureter or renal pelvis along the path of the guidewire. Because the end of the sheath 4 that enters the body is the flexible section 7, it is necessary to coordinate with the guidewire during the insertion process. Figure 1 The core 8 shown in Figure c (one end of core 8 is a pointed tip, and the other end is a plug protrusion 9) fits together to form the following structure. Figure 1 As shown in diagram d, after assembly, the core 8 is inserted into the sheath 4. Then, the end of the guidewire pre-exposed outside the body is passed through the hole inside the core 8, thus placing the core 8 and sheath 4 into the body. Finally, the core 8 and guidewire are removed, leaving only the sheath 4 as the instrument delivery channel. Figure 1 As shown in diagram a, the flexible ureteroscope (including a handle 2 and an extension tube 1, with a flexible segment 3 at the end of the extension tube 1) is inserted into the body through the sheath 4 to perform surgery. The flexible segment 3, the end of the flexible ureteroscope inserted into the body, can bend by operating the handle 2. The flexible segment 7 of the sheath 4 can bend synchronously with the flexible segment 3, thus achieving turning within the body. After insertion, the flexible ureteroscope can be used to clean stones in the renal pelvis or ureter, performing surgical procedures. After the surgical procedure is completed... The ureteroscope and sheath 4 can be removed. However, the existing technology has a problem: during ureteroscopic surgery, various tubular objects (sheath 4, ureteroscope, core 8, etc.) need to be inserted and removed. The force used during insertion and removal cannot be precisely controlled, which can easily lead to serious complications such as ureteral perforation, laceration, or even rupture. Currently, doctors operate by feel, and differences in individual experience lead to different surgical outcomes. Therefore, it is necessary to design a force-measuring device for ureteroscopic surgery to solve the above problems.

[0019] This invention provides a force measuring device for ureteroscopic surgery. The force measuring device 11 includes a hand handle 12, a clamping component, a pressure sensor 17, a control board 25, and a display screen 19. The hand handle 12 is shaped for easy hand gripping and can be made of materials such as plastic or rubber. The control board 25 and the display screen 19 are both mounted on the hand handle 12. An integrally formed opposing plate 16 is located at the top of the hand handle 12, and a through hole 18 is formed in the opposing plate 16. The clamping component includes a base plate 13 and a clamping component integrally formed on the upper part of the base plate 13. Two opposing rod-shaped bodies 26 are arranged on either side. A clamping assembly for clamping tubular objects (i.e., the sheath 4, ureteroscope, core 8, etc. mentioned above) is provided between the two rod-shaped bodies 26. A guide post 14 is fixedly connected to the base plate 13. The hand handle 12 and the base plate 13 are slidably connected through through holes 18 and guide posts 14. The through holes 18 and guide posts 14 are one-to-one and there are no fewer than two of them. Preferably, the ends of the guide posts 14 are connected to a limit plate 15, so that the ends of the multiple guide posts 14 form a flat surface. Figure 3 - Appendix Figure 8 The diagram illustrates three quantities. Pressure sensor 17 is used to monitor the pressure between the opposing plate 16 and the base plate 13. Specifically, pressure sensor 17 can be fixed to the opposing plate 16 (as shown in the attached diagram), or it can be fixed to the base plate 13. The output of pressure sensor 17 is connected to the input of the control main board 25. The output of the control main board 25 is used to output a control signal, which controls the display screen 19 to display the pressure value monitored by pressure sensor 17. When using it, first hold the handheld... The opposing plate 16 of the handle 12 maintains a distance from the base plate 13 of the clamping member. The tubular object is clamped by the clamping assembly on the clamping member. When a force is applied to the handle 12 along the axial direction of the tubular object, the handle 12 drives the opposing plate 16 to slide along the guide post 14, causing the opposing plate 16 to move closer to the base plate 13. When the opposing plate 16 contacts the base plate 13, it drives the clamping assembly and the crown-shaped object to move inward towards the human body. At this time, the value monitored by the pressure sensor 17 is the pushing force applied by the person to the tubular object. When the person applies the pushing force, they can observe the value on the display screen 19 to help them know whether the applied force is appropriate.

[0020] Furthermore, such as Figure 4 This is a schematic diagram of the first embodiment of the present invention. In the attached drawing, the direction of F is the direction in which the tubular object is pushed to the human body. At this time, the base plate 13 is on the right side and the opposing plate 16 is on the left side. The tubular object (attached) is held in place by a clamping assembly. Figure 4(Not shown) After clamping, a force in the direction of F is applied to the handle 12, causing the opposing plate 16 to move towards the base plate 13, driving the base plate 13 and the tubular object held by the clamping assembly into the human body. When it is necessary to remove the tubular object, the force measuring device 11 needs to be removed from the tubular object, and then the force measuring device 11 is flipped over to remove it. Figure 4 The force measuring device 11 is flipped so that the substrate 13 is on the left and the opposing plate 16 is on the right. After the clamping assembly clamps the tubular object, it applies force to the attached... Figure 4 By applying a force in the opposite direction to F, the pulling force used to pull out the tubular object can be measured. The pulling force is equal to the pressure reading monitored by the pressure sensor 17.

[0021] To further enhance the convenience of the force measuring device 11, as shown in the attached document... Figure 5 - Appendix Figure 8 The present invention provides a second embodiment, which is a further improvement on the first embodiment. In the improved embodiment, there are two integrally formed opposing plates 16 on the hand handle 12, and the two opposing plates 16 are parallel and spaced apart. There are two pressure sensors 17, and the two pressure sensors 17 are used to monitor the pressure between the two opposing plates 16 and the base plate 13. Similarly, the two pressure sensors 17 can be installed on the opposing plates 16 or the base plate 13. Both opposing plates 16 can slide to the position of contacting the base plate 13. The advantage of the second embodiment compared with the first embodiment is that it can directly measure the force in two directions, that is, it can measure both the pushing force and the pulling force, without having to remove the force measuring device 11 from the tubular object, making it more convenient to use, and without having to consider the positive and negative directions of the force measuring device 11.

[0022] Based on the two embodiments described above, a warning device is also provided on the handheld handle 12. Specifically, the input end of the warning device is connected to the output end of the control motherboard 25 and is controlled by the control motherboard 25. That is, when the data monitored by the pressure sensor 17 is greater than the set value, the control motherboard 25 controls the warning device to issue an alarm. The specific implementation of the warning device is a warning light 24 or a speaker 23, or a combination of a warning light 24 and a speaker 23. The warning light 24 mainly reminds the person that the force applied is large by illuminating the light, while the speaker 23 mainly provides a warning by emitting sound.

[0023] A rechargeable power supply 21 is also provided on the handheld handle 12 to supply power to electronic components such as the control motherboard 25, display screen 19, pressure sensor 17, and warning device. A charging port 22 is provided on one side of the handheld handle 12, which can be charged by connecting a data cable to the rechargeable power supply 21. It should be further explained that, preferably, the display screen 19 can be a touch screen 19, which is used to display a human-machine interface. The human-machine interface can realize information interaction between the control motherboard 25 and the user based on the user's touch click. This human-machine interface can be an interface for adjusting working parameters, such as the threshold alarm parameter setting monitored by the pressure sensor 17. Of course, if the display screen 19 is a conventional display screen 19 without touch function, it can be used with buttons 20 to realize information interaction between the user and the control motherboard 25. That is, the user can adjust and control the parameters by viewing the human-machine interface on the display screen 19 and using the buttons 20.

[0024] Based on the above solutions, there are various ways to implement the clamping assembly, as long as it can stably clamp the tubular object. To enable those skilled in the art to implement the above solutions smoothly, this invention provides an implementation of the clamping assembly, which includes a groove 27 at the top of the substrate 13, a clamping rod 29 slidably connected to the groove 27, and a tightening bolt 28 threadedly connected to the rod-shaped body 26. The tightening bolt 28 is rotatably connected to the clamping rod 29, that is, in use, the tubular object is placed between the two clamping rods 29. The clamping space 10 is located between the two clamping rods 29. The distance between the clamping space 10 can be adjusted by rotating the tightening bolt 28. As the clamping space 10 between the two clamping rods 29 gradually decreases, the tubular object is clamped. To prevent damage caused by a small contact area between the tubular object and the clamping rods 29, a flexible pad is fixedly connected to one side of the clamping rod 29. The flexible pad can deform to increase the contact area with the tubular object while avoiding rigid contact, thus protecting the tubular object. It should be further noted that the clamping assembly can be implemented in other ways than the one described above. For example, an electric telescopic rod (not shown in the attached figure) can be provided between the two rods 26 and the clamping rods 29. By adjusting the length of the electric telescopic rod, the distance between the two clamping rods 29 can be adjusted, thereby clamping the tubular object. Of course, those skilled in the art can easily imagine other implementation methods, which will not be described in detail here.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A force-measuring device for ureteroscopic surgery, characterized in that, include; Handle body (12), the top of which is integrally formed with a counter plate (16), and the counter plate (16) has a through hole (18). The clamping component is used to clamp tubular objects used in ureteroscopic surgery. The clamping component includes a base plate (13), rod-shaped bodies (26) integrally formed on both sides of the upper part of the base plate (13) and arranged opposite to each other, and a clamping assembly disposed between the two rod-shaped bodies (26). A guide column (14) is fixedly connected to the base plate (13). A pressure sensor (17) is used to monitor the pressure between the opposing plate (16) and the base plate (13); The control board (25) is located inside the hand handle (12); its input end is connected to the output end of the pressure sensor (17); The display screen (19) is mounted on the hand handle (12) and is used to display data from the pressure sensor (17). The display screen (19) is controlled by the control motherboard (25). The number of the perforations (18) and guide posts (14) are one-to-one and there are at least two. The hand handle and the base plate (13) are slidably connected through the guide posts (14) and the perforations (18).

2. The force measuring device for ureteroscopic surgery according to claim 1, characterized in that, The handheld handle (12) is also provided with a warning device, which is controlled by the control motherboard (25). The warning device is a warning light (24) and / or a speaker (23).

3. The force measuring device for ureteroscopic surgery according to claim 1, characterized in that, The handheld handle (12) is also provided with a rechargeable power supply (21) and a charging port (22).

4. The force measuring device for ureteroscopic surgery according to claim 1, characterized in that, The clamping assembly includes a groove (27) at the top of the substrate (13), a clamping rod (29) slidably connected to the groove (27), and a tightening bolt (28) threaded onto the rod-shaped body (26), wherein the tightening bolt (28) is rotatably connected to the clamping rod (29).

5. The force measuring device for ureteroscopic surgery according to claim 4, characterized in that, A flexible pad is fixedly connected to the side of the clamping rod (29).

6. The force measuring device for ureteroscopic surgery according to claim 1, characterized in that, The ends of the multiple guide columns (14) are connected to a limit plate (15).

7. The force measuring device for ureteroscopic surgery according to claim 1, characterized in that, There are two integrally formed opposing plates (16) on the hand handle (12), and the two opposing plates (16) are arranged in parallel and spaced apart. There are two pressure sensors (17), and the two pressure sensors (17) are used to monitor the pressure between the two opposing plates (16) and the base plate (13). Both opposing plates (16) can slide to the position of contacting the base plate (13).

8. The force measuring device for ureteroscopic surgery according to claim 1, characterized in that, The display screen (19) is a touch screen (19), and the touch screen (19) is also used to display a human-computer interaction screen, and the personnel set working parameters based on the operation of the human-computer interaction screen.

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