Puncture navigation enhanced rapid percutaneous nephrostomy drainage kit

Abstract

The application provides a puncture navigation enhanced rapid percutaneous kidney puncture fistula drainage kit, and belongs to the technical field of medical devices, which comprises a main pipe, a main drainage pipe, a sub-pipe installed at the bottom of the main pipe, a probe, a puncture needle core arranged on the inner side of the main pipe, a handle installed at the end of the puncture needle core, and a sterile probe sleeve sleeved on the outer side of the probe, and further comprises: an outer needle assembly arranged on the outer side of the puncture needle core; a puncture guide assembly arranged on the outer side of the puncture needle core, which is used for improving the display and direction recognition ability of the needle tip; a first adjustable depth limiting assembly arranged on the outer side of the outer needle assembly, which converts the ultrasonic measurement depth into mechanical limiting; a puncture navigation assembly arranged on the outer side of the sterile probe sleeve, which is used for keeping the needle path consistent with the ultrasonic plane and improving the visualization of the needle tip; in the application, the puncture navigation assembly is used for limiting the needle insertion direction of the puncture needle, so that the puncture needle is kept in the ultrasonic imaging plane as much as possible, the needle tip is ensured to be visualized throughout the process, and the needle path loss and subcutaneous deviation are eliminated.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit. Background Technology

[0002] Ureteral obstruction complicated by urinary tract infection can lead to increased pressure in the renal pelvis or calyces, pus accumulation, and further induce urinary sepsis. For every hour of delay in effective drainage, the patient mortality rate increases by 7.6%, with urinary tract obstruction being the strongest independent risk factor for death. Therefore, these patients require immediate relief of high pressure in the collecting system of the affected kidney, rapid establishment of unobstructed drainage, and elimination of persistent infectious foci to prevent the progressive deterioration of sepsis.

[0003] Currently, commonly used clinical treatments include ureteral stent placement and percutaneous nephrostomy. Percutaneous nephrostomy is particularly valuable when retrograde stent placement is difficult, the patient is critically ill, cannot tolerate operating room procedures, or requires rapid decompression. However, existing percutaneous nephrostomy kits are mostly designed for routine operating room environments or percutaneous nephrolithotomy procedures. Their main design logic typically includes steps such as puncture, guidewire insertion, stepwise dilation, and insertion of a working sheath or a larger diameter catheter.

[0004] For patients with ureteral obstruction-related urosepsis at the emergency bedside, the primary goal is not to establish a percutaneous nephrolithotomy working channel, but to quickly, accurately, and safely puncture into the purulent calyces or renal pelvis and rapidly form a small drainage channel.

[0005] The existing device has the following shortcomings:

[0006] 1. When the puncture needle is under bedside ultrasound guidance, problems such as unclear needle tip display and needle path deviation from the ultrasound plane are prone to occur, which affects the first puncture success rate;

[0007] 2. The operator needs to judge the depth of needle insertion based on experience, which carries the risk of insufficient puncture or penetration of the target collection system.

[0008] Therefore, we have made improvements by proposing a puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit to address the problems mentioned above. Summary of the Invention

[0009] The purpose of this invention is to provide a puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit to solve the problems mentioned in the background art.

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0011] A puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit includes a main tube, a main drainage tube, a secondary tube installed at the bottom of the main tube, a probe, a puncture needle core disposed inside the main tube, a handle installed at the end of the puncture needle core, and a sterile probe sleeve sleeved to the outside of the probe, and further includes:

[0012] The outer needle assembly is located on the outside of the puncture needle core;

[0013] A puncture guide assembly, located on the outside of the puncture needle core, is used to improve the needle tip display and direction recognition capabilities;

[0014] The first adjustable depth limiting component is located on the outside of the outer needle component, which converts the ultrasonic measurement depth into mechanical limiting.

[0015] The puncture navigation component, located on the outside of the sterile probe sleeve, is used to keep the needle path aligned with the ultrasound plane and improve the visualization of the needle tip;

[0016] The reflux confirmation component is located at the outlet of the secondary tube, which allows for rapid confirmation of the puncture site through the reflux of a small amount of urine or pus.

[0017] As a preferred technical solution of this application, the external needle assembly further includes a puncture external needle disposed on the outside of the puncture needle core, a first scale disposed on the puncture external needle, and a radiopaque ring installed on the outside of the main tube.

[0018] As a preferred technical solution of this application, the puncture guide assembly includes threaded micro-grooves formed on the inclined surface of the puncture needle core near the needle tip and a pointer provided on the end of the puncture needle core near the inclined surface of the needle tip.

[0019] As a preferred technical solution of this application, the first adjustable depth limiting component includes a first limiting ring that slides on the outside of the puncture needle and a first locking knob that is threadedly connected to the first limiting ring.

[0020] As a preferred technical solution of this application, the puncture navigation component includes a limiting seat installed on the outside of the sterile probe sleeve, an angle adjustment block that rotates and is located inside the limiting seat, and a guide groove installed on the angle adjustment block, wherein the guide groove is slidably connected to the puncture needle.

[0021] The angle adjustment block and the rotating end of the limiting seat are also provided with an angle scale;

[0022] A locking knob is threaded onto one side of the sterile probe sleeve.

[0023] As a preferred technical solution of this application, the reflux confirmation component further includes a micro-return liquid storage chamber installed on the secondary pipe, a transparent reflux observation window opened on the micro-return liquid storage chamber, a light negative pressure connection port installed on the micro-return liquid storage chamber, a sampling interface installed on the micro-return liquid storage chamber, and a sealing cap installed at the bottom of the micro-return liquid storage chamber.

[0024] A first one-way valve is installed on the sampling interface.

[0025] As a preferred technical solution of this application, the outer wall of the sheath is provided with a scale on the outer side of the main drainage tube, and a plurality of distal side holes are opened at the outer end of the main drainage tube, and a proximal connecting seat is installed at the other end of the distal side hole.

[0026] As a preferred technical solution of this application, the main drainage tube is further provided with a second adjustable depth limiting component. The second adjustable depth limiting component also includes a second limiting ring that slides on the outside of the main drainage tube and a second locking knob that is threadedly connected to the second limiting ring.

[0027] As a preferred technical solution of this application, a proximal multi-functional connector assembly is also provided on the outside of the proximal connector. The proximal multi-functional connector assembly includes a main channel interface connected to the outside of the proximal connector, a second check valve installed on the side of the main channel interface away from the main drainage tube, a leak-proof cap installed at the bottom of the second check valve, a drainage interface installed at the top of the second check valve, and a guide wire at the inlet installed on the side of the second check valve away from the main channel interface.

[0028] The bottom of the drainage interface is also provided with a drainage liquid outlet.

[0029] As a preferred technical solution of this application, the guide groove is preferably a semi-open structure, so that the puncture needle core can be detached from the guide clamp from the side after it is inserted, thus avoiding affecting the subsequent operation of the guide wire and the main drainage tube.

[0030] In the scheme of this application:

[0031] 1. The puncture navigation component is used to limit the direction of needle insertion, keeping the needle within the ultrasound imaging plane as much as possible. This ensures full visibility of the needle tip, prevents needle tract loss and subcutaneous deviation, and allows the angle adjustment unit to adjust the needle insertion angle according to the location of the target renal pelvis or calyx. This ensures the needle tract enters through the shortest path along the renal calyx axis through the fornix, effectively avoiding adjacent organs such as blood vessels and pleura. This combination not only significantly improves the success rate of puncture on the first attempt and reduces the risk of complications such as severe bleeding and organ damage, but also greatly simplifies the subsequent dilation and catheter placement process by establishing a straight and regular operating channel. At the same time, it reduces the reliance on the surgeon's personal experience, realizing a technological leap from "blind puncture by feeling" to "visualized and precise navigation" in percutaneous nephrostomy.

[0032] 2. By using the first and second adjustable depth limiting components in conjunction, the limiting ring can be locked at the corresponding depth position based on the distance from the skin to the target renal pelvis or target renal calyx measured by ultrasound during puncture and placement of the main drainage tube. When the puncture needle core and the outer puncture needle are advanced to the preset depth, further needle advancement is restricted, which can avoid the risks of excessive puncture of the contralateral renal collecting system, damage to renal vessels, or even penetration of the renal capsule and involvement of the colon / psoas muscle, which are common in traditional manual puncture. During the replacement step, the main drainage tube is also advanced at the same depth limit, which ensures that the drainage end falls accurately into the renal pelvis / calyx and improves the initial drainage efficiency.

[0033] 3. After the puncture needle core and external needle enter the target renal pelvis or pyogenic calyx, a small amount of urine or pus can enter the micro-return fluid reservoir through the reflux confirmation component. The operator can confirm the puncture location by observing the turbid fluid, air bubbles, or reflux fluid. If necessary, gentle aspiration can be performed through the light negative pressure interface for confirmation. This avoids the lag of traditional blind puncture relying on touch or repeated ultrasound scans, and also prevents false positive catheter placement caused by mistakenly getting the needle tip stuck in the renal parenchyma, subcapsular region, or surrounding tissues due to simple imaging judgment. Especially for cases with pyogenic fluid, thin fluid, or mild renal pelvis dilation, the color / characteristics of the reflux fluid (turbid pus vs. clear urine) can also help to quickly identify the puncture target. After confirming that the target is in place, the channel can be widened for catheter placement, which can significantly reduce the rate of non-target catheter placement, channel abandonment, and secondary puncture, while reducing the risk of renal parenchyma tearing and bleeding caused by excessive needle tip wiggling during exploration.

[0034] 4. By combining the immediate drainage function of the small-channel drainage sheath with the synergistic effect of the proximal multifunctional connector assembly, a rapid decompression effect of "one-step dilation and drainage" is achieved. Unlike the traditional approach that requires gradual dilation to a large channel or insertion of a percutaneous nephrolithotomy working sheath, this kit allows direct insertion of the main drainage tube with side holes under guidewire guidance, eliminating the need for repeated dilator replacements. This significantly shortens operation time and reduces tissue trauma. The proximal multifunctional connector assembly integrates multiple functions such as drainage, drug injection, and guidewire re-entry. The design of the second one-way valve and leak-proof cap ensures the airtightness of the tubing system, reducing the risk of retrograde infection while providing rapid drainage. It is especially suitable for critically ill patients requiring emergency decompression, such as those with pyonephrosis or urosepsis. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a partial three-dimensional structure of the sterile probe sleeve in this invention. Figure 1 ;

[0036] Figure 2 This is a schematic diagram of a partial three-dimensional structure of the sterile probe sleeve in this invention. Figure 2 ;

[0037] Figure 3 This is a partial three-dimensional structural diagram of the external needle puncture site in this invention;

[0038] Figure 4 This is a schematic diagram of the cross-sectional structure of the external needle puncture site in this invention;

[0039] Figure 5 This is a structural breakdown diagram of the external needle puncture site in this invention. Figure 1 And enlarged image;

[0040] Figure 6 This is a structural breakdown diagram of the external needle puncture site in this invention. Figure 2 ;

[0041] Figure 7 This is a schematic cross-sectional view of the main drainage tube in this invention.

[0042] In the diagram: 1. Puncture needle core; 11. Handle; 12. Threaded micro-grooves; 13. Indicator; 2. Puncture needle; 21. First scale; 22. Secondary tube; 23. Imaging ring; 24. Main tube; 3. First limiting ring; 31. First locking knob; 4. Micro-return fluid storage chamber; 41. Transparent return fluid observation window; 42. Light negative pressure connection port; 43. Sampling interface; 44. Sealing cap; 45. First one-way valve; 5. Main drainage tube; 1. Sheath outer wall graduations; 52. Distal side hole; 53. Proximal connector; 6. Second limiting ring; 61. Second locking knob; 7. Second one-way valve; 71. Main channel interface; 72. Leak-proof cap; 73. Drainage interface; 74. Guide wire inlet interface; 75. Drainage fluid outlet; 8. Sterile probe sleeve; 81. Locking knob; 82. Limiting seat; 83. Angle adjustment block; 84. Guide groove; 85. Angle scale. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example:

[0045] Please see Figure 1-7 This embodiment proposes a puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit, including a main tube 24, a main drainage tube 5, a secondary tube 22 installed at the bottom of the main tube 24, a probe, a puncture needle core 1 disposed inside the main tube 24, a handle 11 installed at the end of the puncture needle core 1, and a sterile probe sleeve 8 sleeved on the outside of the probe, and further includes:

[0046] The outer needle assembly is located outside the puncture needle core 1; the outer needle assembly also includes a puncture outer needle 2 located outside the puncture needle core 1, a first scale 21 located on the puncture outer needle 2, and a contrast ring 23 installed outside the main tube 24; the contrast ring 23 is made of high echo material, forming a strong echo artifact on the ultrasound image, assisting the operator in judging the needle tip position and the depth of the outer needle in real time, and making up for the limitations of simple needle tip contrast.

[0047] The puncture guide component is located on the outside of the puncture needle core 1 to improve the needle tip display and direction recognition capabilities. The puncture guide component includes a threaded micro-groove 12 formed on the bevel of the puncture needle core 1 near the needle tip and a pointer 13 located on the end of the puncture needle core 1 near the bevel of the needle tip. The threaded micro-groove 12 changes the ultrasonic reflection interface through the fine thread structure, so that the needle tip appears as a stable high bright spot on the ultrasound screen, which is significantly different from the echo of the surrounding tissue and effectively solves the problem of the needle tip "disappearing" in the early stage of puncture. The pointer 13 clarifies the orientation of the bevel of the needle tip and provides an intuitive orientation reference when it is necessary to adjust the direction of the needle tip to align with a specific renal calyx fornix.

[0048] The first adjustable depth limiting component is located on the outside of the outer needle assembly, converting the ultrasound measurement depth into a mechanical limit. The first adjustable depth limiting component includes a first limiting ring 3 that slides on the outside of the puncture outer needle 2 and a first locking knob 31 that is threaded onto the first limiting ring 3. The inner diameter of the first limiting ring 3 is precisely matched with the outer diameter of the puncture outer needle 2 to ensure that it is securely locked in the set position and will not slip due to tissue resistance. When the puncture outer needle 2 carrying the needle core is advanced to the predetermined position of the first limiting ring 3, a physical block is generated, forcibly stopping the needle advance, thereby strictly controlling the puncture depth within the safe range preset by ultrasound, preventing puncture of the contralateral renal parenchyma or damage to organs such as the colon and pleura behind it.

[0049] The puncture navigation component is located on the outside of the sterile probe sleeve 8 to keep the needle path aligned with the ultrasound plane and improve needle tip visualization. The puncture navigation component includes a limiting seat 82 mounted on the outside of the sterile probe sleeve 8, an angle adjustment block 83 rotating within the limiting seat 82, and a guide groove 84 mounted on the angle adjustment block 83. The guide groove 84 is slidably connected to the puncture needle 2. An angle scale 85 is also provided on the rotating end of the angle adjustment block 83 and the limiting seat 82. A locking knob 81 is threaded onto one side of the sterile probe sleeve 8. The angle adjustment block 83 can rotate within the limiting seat 82, and in conjunction with the angle scale 85, it enables quantitative adjustment of the needle insertion angle, allowing the needle path to accurately match the target renal calyx axis in different orientations (such as the upper, middle, and lower calyxes). The locking knob 81 is used to fix the adjusted angle and probe sleeve position to prevent loosening during operation. The guide groove 84 serves as a constraint track for the needle body, forcing the puncture needle to always remain within the ultrasound scanning plane, achieving "real-time needle tip imaging and full path visualization."

[0050] The reflux confirmation component is located at the outlet end of the secondary tube 22, allowing for rapid confirmation of the puncture site through the reflux of a small amount of urine or pus. The reflux confirmation component also includes a micro-reflux reservoir 4 installed on the secondary tube 22, a transparent reflux observation window 41 opened on the micro-reflux reservoir 4, a light negative pressure connection port 42 installed on the micro-reflux reservoir 4, a sampling interface 43 installed on the micro-reflux reservoir 4, and a sealing cap 44 installed at the bottom of the micro-reflux reservoir 4. A first one-way valve 45 is installed on the sampling interface 43. When the needle tip enters the renal pelvis... Or, after the renal calyx, the intracavitary fluid flows into the micro-return fluid storage chamber 4 through the secondary tube 22. The surgeon can directly observe the fluid color, turbidity, and bubble flow through the transparent return fluid observation window 41, achieving immediate physical verification after the puncture is in place. The light negative pressure connection port 42 can be connected to a syringe to apply gentle negative pressure when the fluid return is not smooth, to assist in confirmation. The sampling interface 43, together with the first one-way valve 45, can collect a small amount of specimen for testing without contaminating the surgical field. The sealing cap 44 keeps the system sealed when not sampling, preventing leakage or air from entering.

[0051] like Figure 1-7 As shown, in a preferred embodiment, based on the above method, the main drainage tube 5 is further provided with a sheath outer wall scale 51, and multiple distal side holes 52 are opened at the outer end of the main drainage tube 5. A proximal connecting seat 53 is installed at the other end of the distal side hole 52. The multiple distal side holes 52 are staggered, which expands the drainage area and effectively prevents a single hole from being blocked by blood clots, pus or mucosa, ensuring smooth drainage. The sheath outer wall scale 51 provides a visual depth reference during the tube placement stage.

[0052] The main drainage tube 5 is also provided with a second adjustable depth limiting component. The second adjustable depth limiting component also includes a second limiting ring 6 that slides on the outside of the main drainage tube 5 and a second locking knob 61 that is threaded onto the second limiting ring 6. The second limiting ring 6 is set according to the skin-renal distance measured by ultrasound. During the process of advancing the dilator and drainage tube along the main drainage tube 5, the second limiting ring 6 stops when it touches the skin or guide groove 84, ensuring that the distal side hole 52 of the main drainage tube 5 is accurately placed in the target renal calyx or renal pelvis, neither too deep to stimulate the renal pelvis mucosa and cause spasm and bleeding, nor too shallow to cause drainage failure or dislodgement.

[0053] A proximal multifunctional connector assembly is also provided on the outside of the proximal connector 53. The proximal multifunctional connector assembly includes a main channel interface 71 connected to the outside of the proximal connector 53, a second one-way valve 7 installed on the side of the main channel interface 71 away from the main drainage tube 5, a leak-proof cap 72 installed at the bottom of the second one-way valve 7, a drainage interface 73 installed at the top of the second one-way valve 7, and a guidewire inlet interface 74 installed on the side of the second one-way valve 7 away from the main channel interface 71. A drainage fluid outlet 75 is also provided at the bottom of the drainage interface 73. The second one-way valve 7 is normally closed by the leak-proof cap 72 to maintain the sterile and airtight tubing. When drainage is required, the leak-proof cap 72 is removed, and a drainage bag is connected to the drainage interface 73. The accumulated fluid is drained out through the drainage fluid outlet 75. The guidewire inlet interface 74 supports the introduction of the guidewire while retaining the drainage tube, establishing a channel for subsequent intracavitary irrigation, drug irrigation, or secondary surgery, realizing an integrated operation of "diagnosis-drainage-treatment".

[0054] The guide groove 84 is preferably a semi-open structure, which allows the puncture needle core 1 to be removed from the guide clamp from the side after it is inserted, thus avoiding affecting the subsequent operation of the guide wire and the main drainage tube 5. The semi-open design means that after the puncture needle reaches the preset depth, it is not necessary to remove the entire navigation assembly. The puncture needle and the main tube 24 can be removed from the guide groove 84 by simply moving them slightly to the side. This greatly simplifies the surgical procedure, protects the established precise channel from disturbance, and facilitates the subsequent smooth insertion of the dilator and the main drainage tube 5.

[0055] During use, the device also needs to be used in conjunction with existing puncture positioning patches and medical fixation devices to stably fix the main drainage tube 5 to the skin surface, reducing the risk of tube dislodgement during transport and turning.

[0056] Specifically, when using this enhanced percutaneous nephrostomy drainage sleeve with enhanced puncture navigation:

[0057] First, the location of the target renal pelvis or pyogenic calyx is determined by bedside ultrasound, and the puncture point, needle insertion direction and target depth are recorded by skin positioning patch. Then, the sterile probe sleeve 8 is fixed to the outside of the probe and the locking knob 81 is tightened. The angle adjustment block 83 is adjusted and the needle insertion angle is set with reference to the angle scale 85 so that the axis of the guide groove 84 is consistent with the ultrasound imaging plane and the predetermined puncture path.

[0058] The puncture needle core 1, together with the puncture outer needle 2, is advanced through the guide groove 84. The threaded micro-grooves 12 and the indicator 13 at the distal end of the puncture needle core 1 serve as ultrasound enhancement structures, significantly improving the clarity and directional identification of the needle tip in the ultrasound image. The operator, based on the first scale 21 on the puncture outer needle 2 and in conjunction with the first adjustable depth limiting component (first limiting ring 3 in conjunction with the first locking knob 31) slidably mounted on it, strictly controls the needle insertion depth within the preset safe range of ultrasound. After the needle tip enters the target collection system, a small amount of urine or pus flows through the secondary tube 22 into the micro-return fluid storage chamber 4. The operator directly observes the characteristics of the return fluid through the transparent return fluid observation window 41. If necessary, aspiration is assisted through the light negative pressure connection port 42 or a sample is collected through the sampling interface 43 (with the first one-way valve 45) to complete the target confirmation.

[0059] After confirming the puncture is in place, a flexible guidewire is inserted through the external puncture needle 2, and then the puncture needle core 1 and external puncture needle 2 are withdrawn. The main drainage tube 5 is inserted along the guidewire, ensuring its distal side hole 52 accurately reaches the target renal pelvis or pyogenic calyx. During insertion, the insertion depth is controlled using the second adjustable depth limiting component (second limiting ring 6 in conjunction with second locking knob 61) on the main drainage tube 5. Once in place, the guidewire is withdrawn, and the proximal connector 53 of the main drainage tube 5 is connected to the proximal multi-functional connector assembly. Purulent or infectious urine flows through the distal side hole 52 of the main drainage tube 5, the main channel interface 71, the second one-way valve 7, the drainage interface 73, and the drainage fluid outlet 75, ultimately flowing into the drainage bag through the extension tube, achieving rapid decompression and drainage.

[0060] When subsequent procedures such as guidewire replacement, channel clearing, obstruction treatment, or formal fistula tube replacement are required, the guidewire can be reintroduced through the inlet port 74 via the guidewire on the proximal multi-functional connector assembly. Because the guidewire has a built-in sealing valve structure at the inlet port 74, this design maintains continuous patency and operability of the channel while effectively reducing fluid leakage.

[0061] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit, comprising a main tube (24), a main drainage tube (5), a secondary tube (22) installed at the bottom of the main tube (24), a probe, a puncture needle core (1) disposed inside the main tube (24), a handle (11) installed at the end of the puncture needle core (1), and a sterile probe sleeve (8) sleeved on the outside of the probe, characterized in that, Also includes: The outer needle assembly is located on the outside of the puncture needle core (1); The puncture guide component is located on the outside of the puncture needle core (1) to improve the needle tip display and direction recognition capabilities; The first adjustable depth limiting component is located on the outside of the outer needle component, which converts the ultrasonic measurement depth into mechanical limiting. The puncture navigation component is located on the outside of the sterile probe sleeve (8) to keep the needle path consistent with the ultrasound plane and improve the visualization of the needle tip; The reflux confirmation component is located at the outlet end of the secondary tube (22) to quickly confirm the puncture site through the reflux of a small amount of urine or pus.

2. The puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit according to claim 1, characterized in that, The external needle assembly also includes a puncture external needle (2) disposed on the outside of the puncture needle core (1), a first scale (21) disposed on the puncture external needle (2), and a radiopaque ring (23) installed on the outside of the main tube (24).

3. The enhanced percutaneous nephrostomy drainage kit with puncture navigation as described in claim 2, characterized in that, The puncture guide assembly includes a threaded micro-groove (12) formed on the puncture needle core (1) near the needle tip bevel and a pointer (13) set on the end of the puncture needle core (1) near the needle tip bevel.

4. The puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit according to claim 3, characterized in that, The first adjustable depth limiting component includes a first limiting ring (3) that slides on the outside of the puncture needle (2) and a first locking knob (31) that is threadedly connected to the first limiting ring (3).

5. The enhanced rapid percutaneous nephrostomy drainage kit with puncture navigation according to claim 4, characterized in that, The puncture navigation assembly includes a limiting seat (82) installed on the outside of the sterile probe sleeve (8), an angle adjustment block (83) rotating and inside the limiting seat (82), and a guide groove (84) installed on the angle adjustment block (83), the guide groove (84) being slidably connected to the puncture needle (2); An angle scale (85) is also provided on the rotating end of the angle adjustment block (83) and the limiting seat (82); The sterile probe sleeve (8) has a locking knob (81) threaded on one side.

6. The puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit according to claim 1, characterized in that, The reflux confirmation component also includes a micro-reflux storage chamber (4) installed on the secondary pipe (22), a transparent reflux observation window (41) opened on the micro-reflux storage chamber (4), a light negative pressure connection port (42) installed on the micro-reflux storage chamber (4), a sampling interface (43) installed on the micro-reflux storage chamber (4), and a sealing cap (44) installed at the bottom of the micro-reflux storage chamber (4). A first check valve (45) is installed on the sampling port (43).

7. The puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit according to claim 1, characterized in that, The main drainage tube (5) has a sheath outer wall scale (51) on its outer side, and a plurality of distal side holes (52) are opened at the outer end of the main drainage tube (5). The other end of the distal side hole (52) is equipped with a proximal connector (53).

8. The puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit according to claim 7, characterized in that, The main drainage tube (5) is also provided with a second adjustable depth limiting component. The second adjustable depth limiting component also includes a second limiting ring (6) that slides on the outside of the main drainage tube (5) and a second locking knob (61) that is threaded onto the second limiting ring (6).

9. A puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit according to claim 8, characterized in that, The proximal connector (53) is also provided with a proximal multi-functional connector assembly. The proximal multi-functional connector assembly includes a main channel interface (71) connected to the outside of the proximal connector (53), a second check valve (7) installed on the side of the main channel interface (71) away from the main drainage tube (5), a leak-proof cap (72) installed at the bottom of the second check valve (7), a drainage interface (73) installed at the top of the second check valve (7), and a guide wire inlet interface (74) installed on the side of the second check valve (7) away from the main channel interface (71). The bottom of the drainage interface (73) is also provided with a drainage liquid outlet (75).

10. A puncture navigation-enhanced rapid percutaneous nephrostomy drainage kit according to claim 5, characterized in that, The guide groove (84) is preferably a semi-open structure, so that the puncture needle core (1) can be removed from the guide clamp from the side after it is inserted, so as to avoid affecting the subsequent operation of the guide wire and the main drainage tube (5).

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