Easy-to-fix negative pressure sheath for percutaneous nephrolithotomy

Abstract

The utility model relates to the technical field of percutaneous nephroscopic operation negative pressure sheath, solved the technical problem that whether the puncture needle can not be judged to be worn into the inside of kidney in the puncture process, especially to a kind of percutaneous nephroscopic operation is easy to fix negative pressure sheath, including the puncture sheath as the support base, the puncture sheath one end spiral connection has Y type pipe, Y type pipe inboard fixedly connected with first sealing sleeve, Y type pipe is away from the puncture sheath one end fixedly connected with second sealing sleeve, the puncture sheath and Y type pipe inside are all set up and have the flow guide cavity, the flow guide cavity inboard slidingly connected with puncture needle. The utility model is because the setting of real-time drainage and visual judgment structure, realize that puncture needle can be quickly confirmed puncture position in the puncture process without pulling out, shorten operating time, reduce the trauma to patient by repeated puncture, improve puncture success rate;While integrated operation spares traditional needle extraction sampling step, optimize process coherence, reduce the infection risk caused by multiple operations.

Description

Technical Field

[0001] This utility model relates to the technical field of negative pressure sheaths for percutaneous nephrology, and more particularly to an easily fixed negative pressure sheath for percutaneous nephrology. Background Technology

[0002] With the advancement of science and technology, modern surgery is rapidly developing towards minimally invasive techniques, especially in urology, where it is at the forefront. As minimally invasive surgery progresses, the accompanying surgical instruments are also constantly being innovated. Better surgical instruments help surgeons complete procedures smoothly, reduce complications, and improve safety and success rates. Currently, in the surgical treatment of kidney and upper ureteral stones, hospitals with the necessary resources and skilled surgeons generally employ minimally invasive percutaneous nephrolithotomy (PCNL) for these cases. However, existing negative pressure sheaths require the puncture needle inside to be connected to the sheath and inserted into the patient's body from outside the body. The needle must then be removed from the sheath, and the negative pressure container must be connected to the tail end of the sheath. Fluid is then drawn out to determine if the sheath has penetrated the kidney. If the puncture is unsuccessful, the needle must be reinserted for another attempt. This process is not only cumbersome and lengthy, but frequent punctures can also cause multiple injuries to the body. To address these issues, this application provides an easily fixed negative pressure sheath for percutaneous nephrology. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an easily fixed negative pressure sheath for percutaneous nephrology, which solves the technical problem of not being able to determine whether the puncture needle has penetrated into the kidney during the puncture process, thereby improving the puncture success rate.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an easily fixed negative pressure sheath for percutaneous nephrology, comprising a puncture sheath as a supporting base, a Y-shaped tube spirally connected to one end of the puncture sheath, a first sealing sleeve fixedly connected to the inner side of the Y-shaped tube, a second sealing sleeve fixedly connected to the end of the Y-shaped tube away from the puncture sheath, a guide cavity being provided inside both the puncture sheath and the Y-shaped tube, a puncture needle being slidably connected to the inner side of the guide cavity, an outlet tube being connected to one side of the Y-shaped tube, and a plurality of guide grooves being provided at equal intervals on the outer side of the puncture needle.

[0005] Preferably, the outlet tube is located between the first sealing sleeve and the Y-shaped tube near the puncture sheath.

[0006] Preferably, the inner diameter of the drainage cavity is equal to the outer diameter of the puncture needle, and the guide groove opened on the outer side of the puncture needle extends to the connection between the outlet tube and the Y-shaped tube.

[0007] Preferably, the outlet pipe is connected to a connecting pipe at its end, a flow cutter is connected to the middle section of the connecting pipe, a storage tank is connected to the end of the connecting pipe, and a cleaning pipe is connected to one side of the top of the storage tank.

[0008] Preferably, the end of the connecting pipe extends to the upper part of the storage tank, and the end of the cleaning pipe extends to the bottom of the storage tank.

[0009] Preferably, the end of the cleaning tube is sealed with a sealing rubber sleeve.

[0010] By means of the above technical solution, this utility model provides an easily fixed negative pressure sheath for percutaneous nephrology surgery, which has at least the following beneficial effects: 1. Due to the real-time drainage and visual judgment structure, this utility model enables quick confirmation of the puncture location without removing the puncture needle during the puncture process, shortening the operation time, reducing trauma to the patient from repeated punctures, and improving the puncture success rate; at the same time, the integrated operation eliminates the traditional needle removal and sampling steps, optimizes the process continuity, and reduces the risk of infection caused by multiple operations.

[0011] 2. Due to the multiple sealing protections and negative pressure drainage structure, this utility model effectively prevents leakage of body fluids, reduces the risk of infection for medical staff, and allows for intuitive observation of body fluid color through the transparent storage structure, reducing subjective judgment errors, improving operational safety and reliability, and ensuring the stability and efficiency of the puncture and drainage process. Attached Figure Description

[0012] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0013] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the first sealing sleeve installation structure of this utility model; Figure 3 This is a schematic diagram of the puncture needle installation structure of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0014] In the diagram: 1. Puncture sheath; 2. Y-shaped tube; 3. First sealing sleeve; 4. Second sealing sleeve; 5. Guide cavity; 6. Puncture needle; 7. Outlet tube; 8. Guide groove; 9. Connecting tube; 10. Interceptor; 11. Storage tank; 12. Cleaning tube. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Existing negative pressure sheaths require the insertion of a needle into the patient's body from outside the body. The needle is then removed from the sheath, and a negative pressure canister is attached to the end of the sheath. Fluid is aspirated to determine if the needle has penetrated the kidney. If the puncture is unsuccessful, the needle must be reinserted. This process is not only cumbersome and lengthy, but the frequent punctures can also cause repeated harm to the body. Please refer to [reference needed]. Figures 1-4 This embodiment provides an easily fixed negative pressure sheath for percutaneous nephrology, solving the technical problem of not being able to determine whether the puncture needle has penetrated into the kidney during puncture. The device includes a puncture sheath 1 as a supporting base, a Y-shaped tube 2 spirally connected to one end of the puncture sheath 1, a first sealing sleeve 3 fixedly connected to the inner side of the Y-shaped tube 2, a second sealing sleeve 4 fixedly connected to the end of the Y-shaped tube 2 away from the puncture sheath 1, a guide cavity 5 opened inside both the puncture sheath 1 and the Y-shaped tube 2, a puncture needle 6 slidably connected to the inner side of the guide cavity 5, an outlet tube 7 connected to one side of the Y-shaped tube 2, and several guide grooves 8 equidistantly opened on the outer side of the puncture needle 6.

[0017] To prevent bodily fluids generated during puncture from flowing between the first sealing sleeve 3 and the second sealing sleeve 4, the outlet tube 7 is positioned between the first sealing sleeve 3 and the Y-shaped tube 2 near the end of the puncture sheath 1.

[0018] To enable the puncture needle 6 to provide support and guidance for the puncture sheath 1 during the puncture process, and to guide the drainage of the fluid produced during puncture, the inner diameter of the drainage cavity 5 is equal to the outer diameter of the puncture needle 6, and the guide groove 8 opened on the outer side of the puncture needle 6 extends to the connection between the outlet tube 7 and the Y-shaped tube 2.

[0019] To facilitate the drainage and storage of the body fluids guided by the puncture needle 6 for subsequent observation by the doctor, a connecting tube 9 is connected to the end of the discharge tube 7, a flow cutter 10 is connected to the middle section of the connecting tube 9, a storage tank 11 is connected to the end of the connecting tube 9, and a cleaning tube 12 is connected to one side of the top of the storage tank 11.

[0020] To prevent bodily fluids inside the storage tank 11 from flowing back into the puncture sheath 1, the end of the connecting tube 9 extends to the upper part of the storage tank 11, and the end of the cleaning tube 12 extends to the bottom of the storage tank 11.

[0021] In order to drain and clean the body fluid stored inside the storage tank 11, and to prevent the storage tank 11 from drawing in outside air through the cleaning pipe 12 while it is under negative pressure, thereby balancing the internal air pressure of the storage tank 11 and losing the negative pressure effect, the end of the cleaning pipe 12 is sealed with a sealing rubber sleeve.

[0022] During use, the operator inserts the puncture needle 6 from the tail end of the Y-shaped tube 2 into the puncture sheath 1 and the Y-shaped tube 2. During this process, the first sealing sleeve 3 and the second sealing sleeve 4 cover the outside of the puncture needle 6, preventing fluid from flowing out through the first sealing sleeve 3, the second sealing sleeve 4, and the outer wall of the puncture needle 6. The puncture is performed on the patient using the puncture needle 6 and the puncture sheath 1. Once the puncture needle 6 has penetrated the kidney, the operator can open the shunt device 10 to create a negative pressure storage tank 11. At this time, the storage tank 11 will draw air into the connecting tube 9, which in turn will draw air into the connected outlet tube 7. The outlet tube 7 will then draw air into the puncture sheath 1 and the Y-shaped tube 2. Meanwhile, urine from inside the kidney will flow through the guide groove 8 on the outside of the puncture needle 6 into the drainage chamber 5 of the Y-shaped tube 2, and then be drawn into the storage tank 11 by the outlet tube 7. If the extracted fluid is light-colored... Yellow fluid indicates urine, suggesting a successful puncture. Blood indicates a failed puncture. This design eliminates the need to remove the needle 6 and connect an additional syringe, making the puncture process more convenient and avoiding multiple punctures that could cause further harm to the patient. This improves the success rate. The integrated operation eliminates the need for needle removal and sampling, shortening the operation time. The double-sealed design prevents leakage of bodily fluids, reducing the risk of infection for operators. The transparent material of the storage tank 11, combined with the color of the bodily fluids, makes the judgment results intuitive and reliable, reducing reliance on subjective experience. This core structure, through the closed-loop function of drainage via the guide channel 8, negative pressure drive, and color determination, integrates the fragmented steps of "puncture, detection, and drainage" in traditional punctures into a collaborative process. Its advantages directly translate into reduced patient trauma, protection for operators, and improved clinical efficiency.

[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A easily fixed negative pressure sheath for percutaneous nephrectomy, comprising a puncture sheath (1) as a supporting base, characterized in that: One end of the puncture sheath (1) is spirally connected to a Y-shaped tube (2), and a first sealing sleeve (3) is fixedly connected to the inner side of the Y-shaped tube (2). A second sealing sleeve (4) is fixedly connected to the end of the Y-shaped tube (2) away from the puncture sheath (1). A flow guide cavity (5) is provided inside both the puncture sheath (1) and the Y-shaped tube (2). A puncture needle (6) is slidably connected to the inner side of the flow guide cavity (5). An outlet tube (7) is connected to one side of the Y-shaped tube (2). Several guide grooves (8) are provided at equal intervals on the outer side of the puncture needle (6).

2. The easily fixed negative pressure sheath for percutaneous nephrectomy according to claim 1, characterized in that: The outlet tube (7) is located between the first sealing sleeve (3) and the Y-shaped tube (2) near the end of the puncture sheath (1).

3. The easily fixed negative pressure sheath for percutaneous nephrectomy according to claim 1, characterized in that: The inner diameter of the guide cavity (5) is equal to the outer diameter of the puncture needle (6), and the guide groove (8) opened on the outer side of the puncture needle (6) extends to the connection between the outlet tube (7) and the Y-shaped tube (2).

4. The easily fixed negative pressure sheath for percutaneous nephrectomy according to claim 1, characterized in that: The outlet pipe (7) is connected to a connecting pipe (9) at its end, a flow cutter (10) is connected to the middle section of the connecting pipe (9), a storage tank (11) is connected to the end of the connecting pipe (9), and a cleaning pipe (12) is connected to one side of the top of the storage tank (11).

5. The easily fixed negative pressure sheath for percutaneous nephrectomy according to claim 4, characterized in that: The end of the connecting pipe (9) extends to the upper part of the inside of the storage tank (11), and the end of the cleaning pipe (12) extends to the bottom of the inside of the storage tank (11).

6. The easily fixed negative pressure sheath for percutaneous nephrectomy according to claim 4, characterized in that: The end of the cleaning tube (12) is sealed with a sealing rubber sleeve.

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