Stone crushing device for taking out gallstone in gallbladder surgery

Abstract

The lithotripsy device comprises a lithotripsy assembly, an ultrasonic generator is arranged at the rear end of the lithotripsy assembly, a transducer is arranged at the front end of the lithotripsy assembly, and a lithotripsy probe is arranged at the front end of the transducer; wherein a metal guide rod is arranged at the connecting position of the transducer and the ultrasonic generator, a stone suction pipeline is arranged beside the stone crushing probe, one end of the stone suction pipeline is connected with the negative pressure generating device, the stone crushing probe makes contact with stone to conduct stone crushing operation, and meanwhile stone fragments are sucked into a collecting container through the stone suction pipeline under the attraction of the negative pressure generating device. Wherein a stone suction pipeline is arranged beside the lithotripsy probe, the inner wall of the stone suction pipeline is smooth, an anti-blocking design is adopted, stone fragments can smoothly pass through the stone suction pipeline, one end of the stone suction pipeline is connected with a negative pressure generating device, the suction force of a suction pump in the stone suction pipeline can be adjusted, and a mechanism for preventing backflow is adopted to ensure that the stone fragments are safely sucked into a collecting container.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a lithotripter for removing gallstones during cholecystectomy. Background Art

[0002] In the field of cholecystectomy, the treatment of gallstones is of crucial importance. However, existing gallstone treatment devices have many deficiencies.

[0003] In traditional cholecystectomy, there is a lack of an efficient device specifically designed for lithotripsy during gallbladder removal. Some existing tools have defects in terms of operation convenience, function integration, and safety.

[0004] The material selection of the device often cannot simultaneously meet the medical-grade hygiene standards, strength requirements, and operation comfort. The surface treatment is not smooth enough, making cleaning and disinfection difficult, increasing the risk of cross-infection.

[0005] In terms of structural design, the connection between the ultrasonic generator and the transducer is not stable and efficient enough, affecting the lithotripsy effect. The material and design of the lithotripter probe are not optimized enough, easily causing unnecessary damage to the gallbladder tissue.

[0006] The design of the stone suction pipeline is not reasonable enough, the inner wall is not smooth enough, and it is prone to blockage, affecting the smooth passage of stone fragments. The suction adjustment of the negative pressure generating device is not flexible and accurate enough, and there is a lack of a reflux prevention mechanism, which may increase the surgical risk.

[0007] The layout of the control buttons and knobs on the handle is not reasonable enough, the operation is not convenient enough, affecting the surgical efficiency. The connection method of the display screen is not convenient enough, affecting the doctor's real-time observation and judgment of the surgical process. Summary of the Invention

[0008] To overcome the existing problems, the embodiments of the present application provide a lithotripter for removing gallstones during cholecystectomy, including an ultrasonic generator at the rear end, a transducer at the front end. The transducer is connected to the ultrasonic generator through a special metal guide rod with an insulating and biocompatible coating on the outer layer. At the end of the transducer away from the ultrasonic generator, there is a lithotripter probe. The surface of the lithotripter probe is a layer of soft and biocompatible silicone material, which can reduce damage to the gallbladder tissue when contacting it. Next to the lithotripter probe, there is a stone suction pipeline with a smooth inner wall and an anti-blocking design, which can ensure the smooth passage of stone fragments. One end of the stone suction pipeline is connected to a negative pressure generating device, and the suction of the suction pump inside it can be adjusted, and there is a reflux prevention mechanism to ensure that the stone fragments are safely sucked into the collection container.

[0009] The technical solution adopted by the embodiments of the present application to solve its technical problems is:

[0010] A lithotripter for removing gallstones during gallbladder surgery, comprising a lithotripsy component. The lithotripsy component is made of medical-grade stainless steel and high-strength, high-temperature-resistant, and sterilization-resistant medical plastics, with a smooth surface. The handheld part has anti-slip textures. A ultrasonic generator is provided at the rear end of the lithotripsy component. The ultrasonic generator is located at the rear end of the device and has a high-performance ultrasonic generating circuit built-in. It can generate stable high-frequency electrical signals, and the frequency can be adjusted between 20 kHz and 60 kHz to adapt to different types and hardnesses of stones. The ultrasonic generator has precise frequency control and power adjustment modules, and the power range is 50 - 200 watts. The ultrasonic generator is built-in with an intelligent power control module that can automatically adjust the output power according to the hardness of the stones. A transducer is provided at the front end of the lithotripsy component, and a lithotripsy probe is provided at the front end of the transducer;

[0011] Wherein, a metal guide rod is provided at the connection between the transducer and the ultrasonic generator. A stone suction pipe is provided beside the lithotripsy probe. The stone suction pipe is made of antibacterial material, and its inner wall is provided with spiral guiding lines. One end of the stone suction pipe is connected to a negative pressure generating device. The negative pressure generating device includes a silent vacuum pump. The lithotripsy probe contacts the stone for lithotripsy operation, and at the same time, under the suction of the negative pressure generating device, the stone suction pipe sucks the stone fragments into a collection container.

[0012] Preferably, the lithotripsy component further includes a handle. A control screen is provided on the handle. A plurality of control buttons and knobs are provided on the surface of the control screen. The control buttons and knobs on the control screen have waterproof and dustproof functions to avoid problems that cannot be controlled due to water ingress.

[0013] Preferably, the interior of the metal guide rod is a hollow structure filled with shock-absorbing material. The outer layer of the metal guide rod has an insulating and biocompatible coating. The transducer is connected to the ultrasonic generator through the metal guide rod. The transducer is located at the front end of the device and converts electrical signals into ultrasonic energy. The core of the transducer is a piezoelectric ceramic element, which is designed to be a focusing type, so that the ultrasonic energy can form a high-intensity focusing point at the stone to improve the lithotripsy efficiency.

[0014] Preferably, the surface of the lithotripsy probe is made of soft silicone material with good biocompatibility. The lithotripsy probe is the front-end extension of the transducer and directly contacts the stones in the gallbladder. The lithotripsy probe is in the shape of a slender cone, about 3 - 5 cm in length and about 0.5 - 1 cm in diameter at the top. The surface of the lithotripsy probe is a layer of soft silicone material with good biocompatibility, which can reduce the damage to the gallbladder tissue when contacting it. There are also tiny textures on the silicone surface to prevent the stones from sliding during the lithotripsy process.

[0015] Preferably, a catheter is provided at the top of the handle. A camera assembly is provided on one side of the catheter. The camera assembly captures images and is connected to an external device. Moreover, a fill light is provided inside the camera assembly for light supplementation.

[0016] Preferably, an interface is further provided on the outer wall of the handle. The interface is a magnetic attachment structure for connecting the data cable of a high-definition display screen and supports high-speed data transmission.

[0017] Preferably, a temperature sensor is provided on the outer wall of the transducer. A temperature sensor and an overload protection circuit are provided on the outer wall of the transducer. When the temperature of the transducer is too high or the circuit is abnormal, it can automatically stop working to avoid damage to the patient and the device.

[0018] The advantages of the embodiments of the present application are as follows:

[0019] 1. It includes an ultrasonic generator at the rear end and a transducer at the front end. The transducer is connected to the ultrasonic generator through a special metal guide rod with an insulating and biocompatible coating on the outer layer. A lithotripter probe is provided at the end of the transducer away from the ultrasonic generator. The surface of the lithotripter probe is made of a soft and biocompatible silicone material, which can reduce damage to the gallbladder tissue when contacting it. A stone suction pipe is provided beside the lithotripter probe. The inner wall is smooth and has an anti-blocking design to ensure the smooth passage of stone fragments. One end of the stone suction pipe is connected to a negative pressure generating device. The suction force of the suction pump inside it can be adjusted, and there is an anti-reflux mechanism to ensure that the stone fragments are safely sucked into the collection container.

[0020] 2. A camera assembly is provided on the other side of the catheter in the lithotripsy channel. The camera assembly captures images and supplements light. It also includes a handle with multiple control buttons and knobs, including an ultrasonic power adjustment knob, a frequency adjustment button, a lithotripsy start and stop button, and a suction pump suction force adjustment knob. An interface is provided near the handle for connecting the data cable of a high-definition display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the lithotripsy device for removing gallbladder stones during gallbladder surgery according to the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the lithotripsy component in the lithotripsy device for removing gallbladder stones during gallbladder surgery according to the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the handle in the lithotripsy device for removing gallbladder stones during gallbladder surgery according to the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the catheter in the lithotripter device for removing gallbladder stones during gallbladder surgery of the present invention.

[0026] Main reference numerals description:

[0027] 1. Ultrasonic generator; 2. Transducer; 3. Metal guide rod; 4. Lithotripsy probe; 5. Stone suction pipeline; 6. Handle; 7. Interface; 8. Control panel; 9. Catheter; 10. Camera assembly; 11. Temperature sensor; 100. Lithotripsy assembly. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. In addition, for the convenience of description below, the "upper", "lower", "left", "right", etc. cited are consistent with the upper, lower, left, right, etc. of the accompanying drawings themselves. The "first", "second", etc. in the following text are for distinction in description and have no other special meanings.

[0029] The embodiment of the present application provides a lithotripter device for removing gallbladder stones during gallbladder surgery to solve the problems in the prior art, including an ultrasonic generator at the rear end, a transducer at the front end. The transducer is connected to the ultrasonic generator through a special metal guide rod with an insulating and biocompatible coating on the outer layer. At the end of the transducer away from the ultrasonic generator, there is a lithotripsy probe, and the surface of the lithotripsy probe is made of a soft and biocompatible silicone material, which can reduce damage to the gallbladder tissue when contacting it. Next to the lithotripsy probe, there is a stone suction pipeline with a smooth inner wall and an anti-blocking design to ensure the smooth passage of stone fragments. One end of the stone suction pipeline is connected to a negative pressure generating device, and the suction force of the suction pump inside it can be adjusted, and there is a mechanism to prevent backflow to ensure that the stone fragments are safely sucked into the collection container; on the other side of the catheter in the lithotripsy channel, there is a camera assembly for taking pictures and supplementing light, and there is also a handle with multiple control buttons and knobs, including an ultrasonic power adjustment knob, a frequency adjustment button, a lithotripsy start and stop button, and a suction pump suction force adjustment knob. Near the handle, there is an interface for connecting the data cable of the high-definition display screen.

[0030] The technical solution in the embodiment of the present application is to solve the above problems, and the general idea is as follows:

[0031] Embodiment 1

[0032] This embodiment gives the specific structure of a lithotripter device for removing gallbladder stones during gallbladder surgery, asFigures 1-4 As shown, it includes a lithotripsy component 100, which is made of medical-grade stainless steel and high-strength, high-temperature-resistant, and disinfectant-resistant medical plastics. The surface is smooth, and the handheld part has anti-slip textures. At the rear end of the lithotripsy component 100, there is an ultrasonic generator 1. The ultrasonic generator 1 is located at the rear end of the device and has a high-performance ultrasonic generation circuit built-in. It can generate stable high-frequency electrical signals, and the frequency can be adjusted between 20 kHz and 60 kHz to adapt to different types and hardnesses of stones. The ultrasonic generator 1 has precise frequency control and power adjustment modules, and the power range is 50 - 200 watts. The ultrasonic generator 1 has an intelligent power control module built-in, which can automatically adjust the output power according to the hardness of the stone. At the front end of the lithotripsy component 100, there is a transducer 2, and at the front end of the transducer 2, there is a lithotripsy probe 4;

[0033] Among them, at the connection between the transducer 2 and the ultrasonic generator 1, there is a metal guide rod 3. Next to the lithotripsy probe 4, there is a stone suction pipe 5. The stone suction pipe 5 is made of antibacterial material, and its inner wall is provided with spiral flow guiding patterns. One end of the stone suction pipe 5 is connected to a negative pressure generating device, and the negative pressure generating device includes a silent vacuum pump. The lithotripsy probe 4 contacts the stone for lithotripsy operation, and at the same time, under the suction of the negative pressure generating device, the stone suction pipe 5 sucks the stone fragments into the collection container.

[0034] The lithotripsy component 100 further includes a handle 6. On the handle 6, there is a control screen 8. The surface of the control screen 8 is provided with multiple control buttons and knobs. The control buttons and knobs on the control screen 8 have waterproof and dustproof functions to avoid problems that cannot be controlled due to water ingress.

[0035] The inside of the metal guide rod 3 is a hollow structure filled with shock-absorbing materials. The outer layer of the metal guide rod 3 has an insulating and biocompatible coating. The transducer 2 is connected to the ultrasonic generator 1 through the metal guide rod 3. The transducer 2 is located at the front end of the device and converts electrical signals into ultrasonic energy. The core of the transducer 2 is a piezoelectric ceramic element, which is designed to be focused, so that the ultrasonic energy can form a high-intensity focus at the stone, improving the lithotripsy efficiency.

[0036] The surface of the lithotripsy probe 4 is made of soft silicone material with good biocompatibility. The lithotripsy probe 4 is the front-end extension of the transducer 2 and directly contacts the stone in the gallbladder. The lithotripsy probe 4 is in the shape of a slender cone, about 3 - 5 cm in length, and the top diameter is about 0.5 - 1 cm. The surface of the lithotripsy probe 4 is a layer of soft silicone material with good biocompatibility, which can reduce damage to the gallbladder tissue when contacting it. There are also tiny textures on the silicone surface to prevent the stone from sliding during the lithotripsy process.

[0037] At the top of the handle 6, there is a catheter 9. On one side of the catheter 9, there is a camera assembly 10. The camera assembly 10 is used to capture images and is connected to an external device. Moreover, there is a fill light inside the camera assembly 10 for light supplementation.

[0038] On the surface of the handle 6, there is also an interface 7. The interface 7 is a magnetic attachment structure for connecting the data cable of a high-definition display screen and supports high-speed data transmission.

[0039] On the surface of the transducer 2, there is a temperature sensor 11. There is a temperature sensor 11 and an overload protection circuit on the surface of the transducer 2. When the temperature of the transducer 2 is too high or the circuit shows an abnormality, it can automatically stop working to avoid damage to the patient and the device.

[0040] By adopting the above technical solutions:

[0041] The lithotripsy component 100 is made of medical-grade stainless steel and high-strength medical plastic, with a smooth surface. The anti-slip texture on the handheld part provides a good grip. The power of the ultrasonic generator 1 is adjusted to 30 watts, and the frequency is set to 35 kHz.

[0042] The metal guide rod 3 has a diameter of 4 mm and a length of 30 cm to ensure stable energy transmission. The inner diameter of the stone suction pipe 5 is 8 mm, and the wall thickness is 1.5 mm to effectively suck stone fragments.

[0043] In the negative pressure generating device, the suction force of the suction pump is adjusted to 300 mmHg. The control buttons and knobs on the handle 6 are sensitive in operation, and the doctor can easily adjust various parameters.

[0044] The high-definition display screen connected to the interface 7 has a resolution of 1920×1080 pixels and a screen size of 8 inches, clearly showing the lithotripsy and stone suction processes.

[0045] During gallbladder surgery, the doctor holds this device and adjusts parameters such as the ultrasonic power, frequency, and suction force of the suction pump by operating the buttons and knobs on the handle 6. Then, the catheter 9 extends to the location of the gallbladder stone, and the camera assembly 10 is used for observation. Then, the lithotripsy probe 4 contacts the stone. After that, the ultrasonic generator 1 and the transducer 2 operate for lithotripsy. At the same time, the stone suction pipe 5 sucks the stone fragments into the collection container, and the high-definition display screen shows the lithotripsy and stone suction situations in real time, facilitating the doctor's precise operation.

[0046] During the surgery, the lithotripsy device successfully breaks and safely sucks out the gallbladder stones, improving the surgical efficiency and safety.

[0047] Embodiment 2

[0048] This embodiment provides a specific structure of a lithotripsy device for removing gallbladder stones during gallbladder surgery, as Figures 1-4As shown in the figure, it includes a lithotripsy component 100, which is made of medical-grade stainless steel and high-strength, high-temperature-resistant, and disinfection-resistant medical plastics. The surface is smooth, and the handheld part has anti-slip textures. At the rear end of the lithotripsy component 100, there is an ultrasonic generator 1. The ultrasonic generator 1 is located at the rear end of the device and has a high-performance ultrasonic generating circuit built-in. It can generate stable high-frequency electrical signals, and the frequency can be adjusted between 20 kHz and 60 kHz to adapt to different types and hardnesses of stones. The ultrasonic generator 1 has precise frequency control and power adjustment modules, and the power range is 50 - 200 watts. The ultrasonic generator 1 is built-in with an intelligent power control module, which can automatically adjust the output power according to the stone hardness. At the front end of the lithotripsy component 100, there is a transducer 2, and at the front end of the transducer 2, there is a lithotripsy probe 4;

[0049] Among them, at the connection between the transducer 2 and the ultrasonic generator 1, there is a metal guide rod 3. Next to the lithotripsy probe 4, there is a stone suction pipe 5. The stone suction pipe 5 is made of antibacterial material, and its inner wall is provided with spiral flow guiding lines. One end of the stone suction pipe 5 is connected to a negative pressure generating device. The negative pressure generating device includes a silent vacuum pump. The lithotripsy probe 4 contacts the stone for lithotripsy operation, and at the same time, under the suction of the negative pressure generating device, the stone suction pipe 5 sucks the stone fragments into the collection container.

[0050] The lithotripsy component 100 further includes a handle 6. On the handle 6, there is a control screen 8. The surface of the control screen 8 is provided with multiple control buttons and knobs. The control buttons and knobs on the control screen 8 have the functions of waterproof and dustproof, avoiding the problem of uncontrollability due to water ingress.

[0051] The inside of the metal guide rod 3 is a hollow structure filled with shock-absorbing materials. The outer layer of the metal guide rod 3 has an insulating and biocompatible coating. The transducer 2 is connected to the ultrasonic generator 1 through the metal guide rod 3. The transducer 2 is located at the front end of the device and converts electrical signals into ultrasonic energy. The core of the transducer 2 is a piezoelectric ceramic element, which is designed to be a focused type, enabling the ultrasonic energy to form a high-intensity focus point at the stone, improving the lithotripsy efficiency.

[0052] The surface of the lithotripsy probe 4 is made of soft silicone material with good biocompatibility. The lithotripsy probe 4 is the front extension of the transducer 2 and directly contacts the stone in the gallbladder. The lithotripsy probe 4 is in the shape of a slender cone, about 3 - 5 cm in length, and about 0.5 - 1 cm in diameter at the top. The surface of the lithotripsy probe 4 is a layer of soft silicone material with good biocompatibility, which can reduce the damage to the gallbladder tissue when contacting it. There are also tiny textures on the silicone surface, which can prevent the stone from sliding during the lithotripsy process.

[0053] At the top of the handle 6, there is a catheter 9. On one side of the catheter 9, there is a camera module 10. The camera module 10 takes pictures and connects the camera module 10 to external devices. Moreover, the camera module 10 is internally provided with a fill light for light supplementation.

[0054] The outer wall of the handle 6 is also provided with an interface 7, and the interface 7 is a magnetic suction connector structure for connecting the data cable of the high-definition display screen and supporting high-speed data transmission.

[0055] The outer wall of the transducer 2 is provided with a temperature sensor 11. A temperature sensor 11 and an overload protection circuit are provided on the outer wall of the transducer 2. When the temperature of the transducer 2 is too high or the circuit is abnormal, it can automatically stop working to avoid damage to the patient and the device.

[0056] By adopting the above technical solutions:

[0057] The material of the lithotripsy component 100 is strong, durable and easy to disinfect. The power of the ultrasonic generator 1 is adjusted to 40 watts and the frequency is 40 kHz, which is suitable for the treatment of larger stones.

[0058] The metal guide rod 3 has a diameter of 5 mm and a length of 35 cm. The inner diameter of the stone suction pipe 5 is 9 mm and the pipe wall is 2 mm. The suction of the suction pump reaches 400 mmHg.

[0059] The handle 6 is precisely controlled, and the 10-inch high-definition display screen connected to the interface 7 has excellent resolution. The doctor operates accurately, successfully completes lithotripsy and stone extraction, reducing the operation time and patient trauma.

[0060] During the gallbladder surgery, the doctor holds this device and adjusts parameters such as the ultrasonic power, frequency and the suction of the suction pump by operating the buttons and knobs on the handle 6. Then the catheter 9 extends to the gallbladder stone, observes through the imaging component 10, then the lithotripsy probe 4 contacts the stone, and then the ultrasonic generator 1 and the transducer 2 operate for lithotripsy. At the same time, the stone suction pipe 5 sucks the stone fragments into the collection container, and the high-definition display screen real-time displays the situation of lithotripsy and stone suction, facilitating the doctor's precise operation.

[0061] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A lithotripsy device for removing gallstones during gallbladder surgery, characterized in that: It comprises a lithotripsy component (100), wherein the rear end of the lithotripsy component (100) is provided with an ultrasonic generator (1), the front end of the lithotripsy component (100) is provided with a transducer (2), and the front end of the transducer (2) is provided with a lithotripsy probe (4); A metal guide rod (3) is provided at the connection point between the transducer (2) and the ultrasonic generator (1), a stone suction pipe (5) is provided next to the lithotripsy probe (4), one end of the stone suction pipe (5) is connected to a negative pressure generating device, the lithotripsy probe (4) contacts the stone to perform a lithotripsy operation, and at the same time, under the suction of the negative pressure generating device, the stone suction pipe (5) sucks the stone fragments into a collection container.

2. A lithotripsy device for removing gallstones in gallbladder surgery as claimed in claim 1, characterized in that: The stone crushing assembly (100) further comprises a handle (6), on which a control screen (8) is arranged, and a surface wall of the control screen (8) is provided with a plurality of control buttons and knobs.

3. A lithotripsy device for removing gallstones in gallbladder surgery as claimed in claim 1, characterized in that: The interior of the metal guide rod (3) is a hollow structure filled with shock-absorbing material, and the outer layer of the metal guide rod (3) is provided with an insulating and biocompatible coating.

4. A lithotripsy device for removing gallstones in gallbladder surgery as claimed in claim 1, characterized in that: The surface of the lithotripsy probe (4) is made of soft silicone material with good biocompatibility.

5. A lithotripsy device for removing gallstones in gallbladder surgery as claimed in claim 1, characterized in that: The stone suction pipe (5) is made of antibacterial material, and its inner wall is provided with spiral flow-guiding patterns.

6. A lithotripsy device for removing gallstones in gallbladder surgery as claimed in claim 2, characterized in that: A catheter (9) is provided at the top end of the handle (6), and a camera assembly (10) is provided at one side of the catheter (9).

7. A lithotripsy device for removing gallstones during gallbladder surgery as claimed in claim 2, characterized in that: The control buttons and knobs on the control screen (8) have waterproof and dustproof functions.

8. A lithotripsy device for removing gallstones in gallbladder surgery as claimed in claim 2, characterized in that: The surface wall of the handle (6) is also provided with an interface (7), and the interface (7) is a magnetic suction type joint structure.

9. A lithotripsy device for removing gallstones in gallbladder surgery according to claim 1, characterized in that: A temperature sensor (11) is provided on the surface wall of the transducer (2).

Images