Prostate thermal steam ablation catheter and steam ablation handle

Abstract

This utility model relates to the field of steam ablation technology, providing a prostate thermal steam ablation catheter and steam ablation handle. The catheter includes a guide rod and a catheter tip, with the catheter tip located at the end of the guide rod. The catheter tip has a needle insertion channel and a flushing channel. The catheter tip has a first notch, a second notch, and a third notch, which surround the needle insertion channel. The sidewall of the catheter tip also has a first shielding surface and a second shielding surface. The first shielding surface guides a portion of the fluid flowing out along the first notch to flow in the opposite direction, and the second shielding surface guides a portion of the fluid flowing out along the second notch to flow in the opposite direction. This structure guides the flow of sterile water to the steam ablation center corresponding to the puncture needle, ensuring that sterile water covers three sides of the steam ablation center, forming a vortex. This allows for heat dissipation and uniform cooling of the treatment area, helping to avoid the risk of steam burns to tissue and improving the clarity of observation of the treatment area.

Description

Technical Field

[0001] This utility model relates to the field of steam ablation technology, and in particular to a prostate thermal steam ablation catheter and steam ablation handle. Background Technology

[0002] The prostate gland is the largest unpaired solid organ among the accessory glands, located in the pelvic cavity. Existing minimally invasive treatment techniques for benign prostatic hyperplasia (BPH) include microwave therapy, puncture ablation, and steam therapy. These techniques only require local anesthesia, are easy to perform, cause minimal trauma, have minimal intraoperative bleeding, and allow for rapid postoperative recovery. Steam therapy, in particular, has been introduced to my country and is gradually gaining popularity due to its safety, effectiveness, minimal trauma, and ease of operation.

[0003] During the treatment process, the prostate steam ablation catheter is prone to uneven heat dissipation and cooling of the treatment area, which may lead to the risk of steam burns to the tissue and unclear observation of the treatment area due to blood or broken tissue generated during puncture not being flushed away. Utility Model Content

[0004] This invention provides a prostate thermal steam ablation catheter to solve the problem of uneven heat dissipation and cooling of the treatment area during the treatment process in related technologies. This helps to avoid the risk of steam burns to tissues and avoids the phenomenon that the treatment area cannot be clearly observed due to blood or broken tissue generated during puncture not being flushed away.

[0005] This utility model provides a prostate thermal steam ablation catheter, comprising:

[0006] Guide rod;

[0007] The catheter tip is located at the end of the guide rod. The catheter tip is provided with a needle insertion channel and a flushing channel. The needle insertion channel is used to install a puncture needle, and the flushing channel is used to connect to a water source.

[0008] The catheter tip has a first notch, a second notch, and a third notch, which communicate with the flushing channel and surround the needle insertion channel.

[0009] The sidewall of the catheter tip is further provided with a first shielding surface and a second shielding surface, wherein the first shielding surface is located on one side of the first notch and the second shielding surface is located on one side of the second notch.

[0010] The first shielding surface is used to guide a portion of the liquid flowing out along the first gap to flow in the opposite direction, and the second shielding surface is used to guide a portion of the liquid flowing out along the second gap to flow in the opposite direction.

[0011] According to the present invention, a prostate thermal steam ablation catheter is provided, wherein the third notch is located between the first notch and the second notch;

[0012] The first and second notches are located away from the water outlet of the flushing channel, while the third notch is located close to the water outlet of the flushing channel.

[0013] According to the present invention, a prostate thermal steam ablation catheter is provided in which the third notch is arranged on the same side as the exit position of the puncture needle installed on the needle inlet channel.

[0014] According to the present invention, a prostate thermal steam ablation catheter is provided, wherein one side wall of the catheter tip is recessed in the direction of its axis to form a first groove, and the other side wall opposite to the catheter tip is recessed in the direction of its axis to form a second groove.

[0015] The first notch extends through the bottom wall of the first slot, and the first shielding surface is formed on one side wall of the first slot.

[0016] The second notch extends through the bottom wall of the second slot, and the second shielding surface is formed on one side wall of the second slot.

[0017] According to the present invention, a prostate thermal steam ablation catheter is provided at the tip of the catheter, the avoidance opening is connected to the needle insertion channel, and the avoidance opening is used for the puncture needle to extend out.

[0018] According to the present invention, a prostate thermal steam ablation catheter further includes a visual module disposed at the tip of the catheter, the visual module being used to guide the tip of the catheter to move to the treatment area;

[0019] The conduit head is provided with a wire outlet channel for threading the wires of the vision module.

[0020] According to the present invention, a prostate thermal steam ablation catheter is provided in which the visual module is arranged on the same side as the exit point of the puncture needle installed on the needle inlet channel.

[0021] According to the present invention, a prostate thermal steam ablation catheter is provided, wherein the working surface of the visual module forms an angle α with the axial direction of the needle insertion channel, and the angle α ranges from 45 to 80 degrees.

[0022] According to the present invention, a prostate thermal steam ablation catheter is provided, wherein the catheter tip is provided with an installation recess, and a visual module is disposed in the installation recess, wherein the size of the visual module and the installation recess are adapted to each other.

[0023] According to the present invention, a prostate thermal steam ablation catheter is provided, the visual module comprising:

[0024] A mounting block is provided in the mounting recess, and the mounting block is provided with a mounting groove;

[0025] A vision sensor, wherein the vision sensor is disposed on the mounting block;

[0026] The LED light is installed in the mounting groove.

[0027] According to the present invention, a prostate thermal steam ablation catheter is provided, wherein the mounting groove is provided in two sets, and each of the opposite side walls of the mounting block is provided with one set of the mounting groove.

[0028] The LED lights are in two sets, and the mounting grooves are provided one-to-one with each of the LED lights;

[0029] The vision sensor is located between the two sets of mounting grooves.

[0030] According to the present invention, a prostate thermal steam ablation catheter is provided, wherein the catheter tip is provided with a drainage channel, and the outlet end of the drainage channel is connected to a valve structure for controlling the opening and closing of the drainage channel.

[0031] This utility model also provides a steam melting handle, comprising:

[0032] handle body;

[0033] The aforementioned prostate thermal steam ablation catheter has its guide rod connected to the handle body.

[0034] The prostate thermal steam ablation catheter provided by this utility model has a first notch, a second notch, and a third notch formed at the catheter tip. The first notch, the second notch, and the third notch are arranged around the needle insertion channel. In this utility model, during use, the catheter tip corresponds to the steam ablation center, i.e., the target treatment area. The third notch is close to the surface tissue, and part of the water flows out of the contact tissue and its gaps. Part of the water flows out from the first notch and the second notch and flows downward after hitting the corresponding first shielding surface and the second shielding surface. At the same time, part of it flows in the opposite direction due to the reaction effect. Through the above structure, the flow of sterile water is guided to the steam ablation center corresponding to the puncture needle. In this way, sterile water can cover the three sides of the steam ablation center to form a vortex, so that the treatment area can dissipate heat and cool evenly. This helps to avoid the risk of steam burning the tissue and improve the clarity of observation of the treatment area. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the steam melting handle provided by this utility model.

[0037] Figure 2 This is a schematic diagram showing the interaction between the catheter and the treatment area provided by this utility model.

[0038] Figure 3 This is a schematic diagram of the water flow when the catheter provided by this utility model is used in conjunction with the treatment area.

[0039] Figure 4 This is a first-view schematic diagram of the catheter tip provided by this utility model.

[0040] Figure 5 This is a second-view schematic diagram of the catheter tip provided by this utility model.

[0041] Figure 6 This is an exploded view of the catheter provided by this utility model.

[0042] Figure 7 This is a cross-sectional schematic diagram of the catheter provided by this utility model.

[0043] Figure 8 This is a schematic diagram of the structure of the vision module provided by this utility model.

[0044] Figure 9 This is a schematic diagram of the guide rod provided by this utility model.

[0045] Figure 10 This is a schematic diagram showing the combination of the catheter, valve structure, peristaltic pump, and sterile water bag provided by this utility model.

[0046] Figure 11 This is an operational schematic diagram of the catheter and treatment area provided by this utility model.

[0047] Figure label:

[0048] 100. Guide rod; 110. Puncture needle tube; 120. Flushing tube; 130. Drainage tube; 140. Outlet tube;

[0049] 200. Catheter tip; 210. Needle insertion channel; 220. Flushing channel; 300. Puncture needle; 231. First notch; 232. Second notch; 233. Third notch; 241. First shielding surface; 251. First groove; 261. Clearance opening; 262. Mounting recess; 270. Outlet channel; 280. Drainage channel;

[0050] 400, Vision module; 410, Mounting block; 411, Mounting groove; 420, Vision sensor; 430, LED light; 500, Valve structure; 600, Handle body; 710, Flushing hose; 720, Drain hose; 800, Peristaltic pump; 900, Sterile water bag. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] The prostate gland is the largest unpaired solid organ among accessory glands, located in the pelvic cavity. Its shape and size are somewhat similar to a flattened chestnut, pale red with a grayish-white tinge. In young adults, it is about 3-4 cm in diameter and weighs about 20 grams. If the weight exceeds 20 grams, it indicates that it has begun to enlarge. Benign prostatic hyperplasia (BPH) is one of the most common benign prostatic hyperplasia diseases in men. Because the prostate gland enlarges with age, it is difficult to avoid the enlarged prostate and the resulting urinary difficulties for middle-aged and elderly men. Data shows that the incidence of BPH in men over 60 years of age exceeds 50%. By age 70, nearly 90% of men have microscopic evidence of prostatic hyperplasia. The severity of symptoms also increases with age; 27% of patients aged 60-70 have moderate to severe symptoms, and 37% of patients over 70 have moderate to severe symptoms.

[0053] It should be noted that the above data is for reference only and is not absolutely accurate.

[0054] The following is combined Figures 1-11 This invention describes a prostate thermal steam ablation catheter and a steam ablation handle, wherein the steam ablation handle includes a handle body 600 and the aforementioned prostate thermal steam ablation catheter.

[0055] Reference Figures 1 to 3In some examples of this utility model, the prostate thermal steam ablation catheter includes a guide rod 100 and a catheter tip 200. The guide rod 100 is connected to the handle body 600, and the catheter tip 200 is located at the end of the guide rod 100.

[0056] Reference Figure 4 , Figure 5 , Figure 9 and Figure 10 In some examples of this utility model, the catheter tip 200 is provided with a needle inlet channel 210, a flushing channel 220, a drainage channel 280 and a wire outlet channel 270.

[0057] Reference Figures 2 to 5 In some examples of this utility model, the needle insertion channel 210 is used to install the puncture needle 300, and the flushing channel 220 is used to connect to the water source; the catheter tip 200 is formed with a first notch 231, a second notch 232 and a third notch 233, the first notch 231, the second notch 232 and the third notch 233 are connected to the flushing channel 220, and the three notches surround the needle insertion channel 210;

[0058] The sidewall of the catheter tip 200 is further provided with a first shielding surface 241 and a second shielding surface. The first shielding surface 241 is located on one side of the first notch 231, and the second shielding surface is located on one side of the second notch 232. The first shielding surface 241 is used to guide the reverse flow of some of the liquid flowing out along the first notch 231, and the second shielding surface is used to guide the reverse flow of some of the liquid flowing out along the second notch 232.

[0059] The prostate thermal steam ablation catheter provided by this utility model has a first notch 231, a second notch 232, and a third notch 233 formed at the catheter tip 200. These three notches are arranged around the needle insertion channel 210. In this utility model, refer to... Figure 11 During use, the catheter tip 200 corresponds to the steam ablation center, i.e., the target treatment area. The third notch 233 is attached to the surface tissue, and some water flows out of the contact tissue and its gaps. Some water flows out from the first notch 231 and the second notch 232 and flows downward after hitting the corresponding first shielding surface 241 and the second shielding surface. At the same time, some of it flows in the opposite direction due to the reaction. Through the above structure, the flow of sterile water is guided to the steam ablation center corresponding to the puncture needle 300. In this way, sterile water can be covered on three sides of the steam ablation center to form a vortex, so that the treatment area can dissipate heat and cool evenly. This helps to avoid the risk of steam burning the tissue and improve the clarity of observation of the treatment area.

[0060] Understandably, referring to Figure 9 and Figure 10In this embodiment of the utility model, the guide rod 100 is provided with a puncture needle channel 110, a flushing channel 120, a drainage channel 130 and a wire outlet channel 140. The puncture needle channel 110 is coupled to the needle inlet channel 210, the flushing channel 120 is coupled to the flushing channel 220, the drainage channel 130 is coupled to the drainage channel 280, and the wire outlet channel 140 is coupled to the wire outlet channel 270.

[0061] Understandably, referring to Figures 2 to 5 In some examples of this utility model, the third notch 233 is located between the first notch 231 and the second notch 232;

[0062] The first notch 231 and the second notch 232 are located away from the water outlet of the flushing channel 220, while the third notch 233 is located close to the water outlet of the flushing channel 220.

[0063] Because the three notches are arranged in a ring to form a multi-directional flow, the first notch 231 and the second notch 232 are far away from the water outlet, while the third notch 233 is close to the water outlet, so as to achieve uniform coverage around the needle inlet channel 210, so that the treatment area can dissipate heat and cool evenly, and improve the rinsing efficiency and range.

[0064] Reference Figure 2 , Figure 3 and Figure 7 In some examples of this utility model, the third notch 233 is arranged on the same side as the exit position of the puncture needle 300 installed on the needle inlet channel 210.

[0065] The third notch 233 is arranged on the same side as the exit position of the puncture needle 300, so that the direction of the irrigation fluid flow is consistent with the puncture direction, forming axial synergistic irrigation, effectively rinsing away blood or broken tissue generated during puncture, and improving local cleaning efficiency. In addition, the symmetrical diversion of the first notch 231 and the second notch 232 provides basic support, while the same-side layout of the third notch 233 on the exit position side avoids the sterile irrigation water from interfering with the movement of the puncture needle 300, and maintains the axial stability of the instrument through the fluid pressure difference. The structure is compact and makes full use of the space at the catheter tip 200, so that the treatment area can dissipate heat and cool evenly, which helps to avoid the risk of steam burns to tissues and improve the clarity of observation of the treatment area.

[0066] Reference Figure 2 and Figure 3 In some examples of this utility model, a first groove 251 is formed by recessing one sidewall of the catheter tip 200 toward its axis, and a second groove is formed by recessing the other sidewall of the catheter tip 200 away from its axis. The first groove 251 and the second groove have the same shape in this embodiment.

[0067] Reference Figure 2 and Figure 3 The first notch 231 penetrates the bottom wall of the first slot 251, and the first shielding surface 241 is formed on one side wall of the first slot 251.

[0068] The second notch 232 extends through the bottom wall of the second slot, and the second shielding surface is formed on one side wall of the second slot.

[0069] The first groove 251 and the second groove are symmetrically recessed on both sides of the catheter tip 200. Combined with the corresponding arrangement of their respective notches and shielding surfaces, they form a bidirectional flushing fluid channel, ensuring uniform distribution of sterile water flushing and preventing catheter displacement caused by unilateral pressure imbalance. The groove recess design accommodates both the notch and shielding surface within the limited space of the catheter tip 200, optimizing the geometric accuracy of the fluid path and reducing the overall volume through structural design, thus achieving miniaturization and multifunctional integration of the catheter.

[0070] Reference Figure 7 In some examples of this utility model, the catheter tip 200 is also provided with a relief opening 261, which is connected to the needle insertion channel 210 and is used for the puncture needle 300 to extend out.

[0071] The clearance port 261 is directly connected to the needle insertion channel 210, providing an unobstructed path for the puncture needle 300 to extend, ensuring the smoothness and accuracy of the puncture procedure. It also complements the irrigation notch, achieving simultaneous optimization of puncture and irrigation functions. The clearance port 261 is compactly integrated into the catheter tip 200 without interfering with the layout of the third irrigation notch 233, maximizing the use of limited space and maintaining the device's miniaturization and multi-functional integrated design.

[0072] Understandably, referring to Figures 6 to 8 In some examples of this utility model, a vision module 400 is also provided at the catheter tip 200, which is used to guide the catheter tip 200 to move to the treatment area.

[0073] The catheter tip 200 is provided with a cable exit channel 270 for threading the cable of the vision module 400. With this configuration, the vision module 400 is integrated into the catheter tip 200, enabling real-time capture and feedback of images of the target area. This significantly improves the accuracy of catheter positioning and the controllability of operation, reducing the risk of blind puncture. The cable exit channel 270 is specifically designed for the vision module 400 cable, ensuring signal transmission stability while preventing cable tangling or interference with catheter movement, maintaining the compactness and functionality of the overall device structure.

[0074] Reference Figure 6 and Figure 7 In some examples of this utility model, the visual module 400 and the puncture needle 300 installed on the needle inlet channel 210 are arranged on the same side as the needle outlet.

[0075] The above method ensures that heat is dissipated evenly during steam release therapy, while also allowing for clear observation of the treatment area.

[0076] Specifically, in some examples, an angle α is formed between the working surface of the vision module 400 and the axial direction of the needle insertion channel 210, with the angle α ranging from 45 to 80 degrees. The image imaging effect is better within the above angle range.

[0077] Understandably, referring to Figure 7 In some examples of this utility model, the catheter tip 200 is provided with a mounting recess 262, and the vision module 400 is disposed in the mounting recess 262. The dimensions of the vision module 400 and the mounting recess 262 are compatible.

[0078] With the above configuration, after the vision module 400 is assembled, it is installed in the mounting recess 262 of the guide tube head end 200. The structural design reduces the assembly difficulty of the vision module, solves assembly errors, and reduces production costs.

[0079] Reference Figure 7 and Figure 8 In some examples of this utility model, the vision module 400 includes a mounting block 410, a vision sensor 420, and an LED light 430. The mounting block 410 is provided with a mounting groove 411, the vision sensor 420 is disposed in the mounting block 410, and the LED light 430 is disposed in the mounting groove 411.

[0080] The mounting block 410 can be used to assemble the vision sensor 420 and LED light 430 before bonding them together with the guide tube tip 200. It can be understood that the mounting block 410 integrates the vision sensor 420 and LED light 430 into a compact module, and achieves precise positioning through the mounting groove 411. This simplifies the assembly process, ensures the coordinated operation of optical components, improves assembly accuracy and efficiency, and saves production costs. In addition, the mounting groove 411 provides physical protection for the LED light 430 to prevent collisions or displacement during surgery.

[0081] Reference Figure 7 and Figure 8 In some examples of this utility model, there are two sets of mounting grooves 411, with one set of mounting grooves 411 provided on each of the opposite side walls of the mounting block 410.

[0082] There are two sets of LED lights 430, and the mounting grooves 411 are set one-to-one with each LED light 430. The two sets of LED lights 430 are symmetrically distributed through the mounting grooves 411 on both sides to form a surround lighting effect.

[0083] The vision sensor 420 is located between two sets of mounting grooves 411 and is centrally positioned between two sets of LED lights 430, so that the light source and the photosensitive element form the best optical angle, which avoids overexposure of direct light and maximizes the use of reflected light, ensuring clear image details and accurate color reproduction.

[0084] Meanwhile, the LED 430 and the recessed slot further reinforce the overall structure and improve impact resistance.

[0085] Reference Figure 10 In some examples of this utility model, the outlet end of the drainage channel 280 is connected to a valve structure 500 for controlling the opening and closing of the drainage channel 280.

[0086] It should be noted that the valve structure 500 described above is a stop valve. Of course, in some examples, it can also be a spring clamp valve, a sliding clamp valve, etc.

[0087] Understandably, the rinsing pipe 120 is connected to the rinsing hose 710, and then to the sterile water bag 900 via the peristaltic pump 800. During the steam therapy, it is necessary to continuously rinse with sterile water to dissipate heat and prevent scalding. At this time, the drain channel 280 needs to be closed by operating the valve structure 500, and the peristaltic pump 800 needs to be turned on to continuously flush out sterile water.

[0088] The drainage pipe 130 is connected to the drainage hose 720, and a valve structure 500 is set on it. When there is too much water in the bladder during treatment, it is necessary to drain the water. At this time, the valve structure 500 needs to be operated to open the outlet of the drainage channel 280. Under the action of bladder pressure, the water is discharged through the drainage pipe 130, so as to achieve timely drainage and stable operation.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A prostate thermal vapor ablation catheter, characterized by, include: Guide rod (100); The catheter tip (200) is located at the end of the guide rod (100). The catheter tip (200) is provided with a needle insertion channel (210) and a flushing channel (220). The needle insertion channel (210) is used to install a puncture needle (300), and the flushing channel (220) is used to connect a water source. The catheter tip (200) has a first notch (231), a second notch (232) and a third notch (233), which are connected to the flushing channel (220) and are arranged around the needle insertion channel (210); The sidewall of the catheter tip (200) is formed with a first shielding surface (241) and a second shielding surface. The first shielding surface (241) is located on one side of the first notch (231), and the second shielding surface is located on one side of the second notch (232). The first shielding surface (241) is used to guide a portion of the liquid flowing out along the first gap (231) to flow in the opposite direction, and the second shielding surface is used to guide a portion of the liquid flowing out along the second gap (232) to flow in the opposite direction.

2. The prostate thermal vapor ablation catheter of claim 1, wherein, The third gap (233) is located between the first gap (231) and the second gap (232); The first notch (231) and the second notch (232) are located away from the water outlet of the flushing channel (220), while the third notch (233) is located close to the water outlet of the flushing channel (220).

3. The prostate thermal vapor ablation catheter of claim 1, wherein, The third notch (233) is arranged on the same side as the exit position of the puncture needle (300) installed on the needle inlet channel (210).

4. The prostate thermal vapor ablation catheter of claim 1, wherein, One sidewall of the catheter tip (200) is recessed in the direction of its axis to form a first groove (251), and the other sidewall opposite to the catheter tip (200) is recessed in the direction of its axis to form a second groove. The first notch (231) penetrates the bottom wall of the first slot (251), and the first shielding surface (241) is formed on one side wall of the first slot (251). The second notch (232) extends through the bottom wall of the second slot, and the second shielding surface is formed on one side wall of the second slot.

5. The prostate thermal vapor ablation catheter of claim 1, wherein, The catheter tip (200) is also provided with a clearance port (261), which is connected to the needle insertion channel (210) and is used for the puncture needle (300) to extend out.

6. The prostate thermal vapor ablation catheter of any of claims 1-5, wherein, It also includes a vision module (400) disposed at the catheter tip (200), the vision module (400) being used to guide the catheter tip (200) to move to the treatment area; The conduit head end (200) is provided with a wire outlet channel (270), which is used to pass through the wire of the vision module (400).

7. The prostate thermal vapor ablation catheter of claim 6, wherein, The vision module (400) and the puncture needle (300) installed on the needle inlet channel (210) are arranged on the same side of the exit position.

8. The prostate thermal vapor ablation catheter of claim 7, wherein, The working surface of the vision module (400) and the axial direction of the needle inlet channel (210) form an angle α, the angle α being in the range of 45 to 80 degrees.

9. The prostate thermal vapor ablation catheter of claim 6, wherein, The catheter tip (200) is provided with a mounting recess (262), and the vision module (400) is located in the mounting recess (262). The dimensions of the vision module (400) and the mounting recess (262) are compatible.

10. The prostate thermal vapor ablation catheter of claim 9, wherein, The vision module (400) includes: Mounting block (410) is provided in the mounting recess (262), and mounting groove (411) is provided on the mounting block (410). A vision sensor (420) is disposed on the mounting block (410). LED light (430) is disposed in the mounting groove (411).

11. The prostate thermal vapor ablation catheter of claim 10, wherein, The mounting grooves (411) are in two sets, and each of the opposite side walls of the mounting block (410) is provided with a set of the mounting grooves (411). The LED lights (430) are in two sets, and the mounting grooves (411) are provided one-to-one with the LED lights (430); The vision sensor (420) is located between the two sets of mounting grooves (411).

12. The prostate thermal vapor ablation catheter of claim 1, wherein, The conduit head end (200) is also provided with a drainage channel (280), and the outlet end of the drainage channel (280) is connected to a valve structure (500) for controlling the opening and closing of the drainage channel (280).

13. A vapor ablation handle characterized by, include: handle body(600); The prostate thermal steam ablation catheter according to any one of claims 1 to 12, wherein the guide rod (100) is connected to the handle body (600).

Images