Compound percutaneous nephroscope with hemostatic function

Abstract

The utility model relates to percutaneous nephroscope sheath technical field, concretely is a kind of composite percutaneous nephroscope sheath with hemostatic function, including pipe body, the head end of pipe body is equipped with metal head, the tail end of pipe body is equipped with protective cover, the inside of protective cover is equipped with the inside of pipe body is provided with wire, one end of wire is connected with metal head, the other end of wire is connected with threaded rod, the outer end of threaded rod is equipped with electrode piece connector, electrode piece connector is connected with external hemostatic electrode. In the composite percutaneous nephroscope sheath with hemostatic function, wire is directly contacted with bleeding point through metal head, combined with external hemostatic electrode, can quickly coagulation hemostasis to intraoperative bleeding site, without replacing instrument, reduce intraoperative bleeding volume and hemostasis operation time, reduce the surgical risk caused by bleeding.

Description

Technical Field

[0001] This utility model relates to the field of percutaneous nephroscope sheath technology, specifically, to a composite percutaneous nephroscope sheath with hemostatic function. Background Technology

[0002] In the field of urology, percutaneous nephrolithotomy (PCNL) is a commonly used method for treating kidney diseases such as kidney stones and ureteropelvic junction obstruction. The PCNL sheath, a key instrument in PCNL, primarily functions to establish a percutaneous renal access, providing a pathway for the insertion and manipulation of the nephroscope, while also facilitating the entry and exit of irrigation fluid and the removal of stones and other substances during the procedure.

[0003] However, traditional percutaneous nephrolithotomy sheaths have certain functional limitations. On the one hand, kidney tissue is relatively fragile during surgery, and surgical procedures inevitably cause some damage to renal blood vessels, leading to bleeding. Most existing percutaneous nephrolithotomy sheaths do not have hemostatic capabilities. Once bleeding occurs, doctors need to use additional hemostatic instruments or medications to stop the bleeding. This not only increases the complexity and difficulty of the surgery and prolongs the operation time, but may also increase patient suffering and surgical risks, such as serious complications like shock due to excessive bleeding.

[0004] On the other hand, the structural design of traditional percutaneous nephrolithotomy sheaths also has some shortcomings. For example, the material and surface treatment of the sheath may affect its lubrication and passage within the body, leading to less smooth insertion and removal, and increasing damage to kidney tissue; the design of the metal tip may not be reasonable, and it may easily cause unnecessary damage to surrounding tissues during puncture; the design of the grip may not be ergonomic, and doctors may easily feel fatigued during prolonged surgical operations, affecting the stability and accuracy of the surgical procedure. Utility Model Content

[0005] The purpose of this invention is to provide a composite percutaneous nephrolithotomy sheath with hemostatic function, so as to solve the problem that the traditional percutaneous nephrolithotomy sheath has certain functional limitations as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a composite percutaneous nephroscope sheath with hemostatic function, comprising a tube body, a metal head installed at the head end of the tube body, a protective cover installed at the tail end of the tube body, a metal wire installed inside the tube body on the inner side of the protective cover, one end of the metal wire being connected to the metal head, and the other end of the metal wire being connected to a threaded rod, an electrode connector being installed at the outer end of the threaded rod, and the electrode connector being connected to an external hemostatic electrode.

[0007] As a preferred embodiment of this utility model, a grip sleeve is provided on the outer wall of the end of the tube near the protective cover, and the grip sleeve is made of silicone material.

[0008] As a preferred embodiment of this utility model, an annular limiting plate is installed at one end of the grip sleeve near the protective cover.

[0009] As a preferred embodiment of this utility model, the outer wall of the metal head is an outwardly convex arc-shaped structure, and the head end is a conical structure.

[0010] As a preferred embodiment of this utility model, the tube body is made of plastic material and is covered with an outer shell, the surface of which is coated with a lubricant.

[0011] As a preferred embodiment of this utility model, the tube body has a first threaded opening near the metal head end, and a threaded ring is installed at the bottom end of the metal head, with the threaded ring threadedly connected to the first threaded opening.

[0012] As a preferred embodiment of this utility model, the tube body is provided with a second threaded opening at one end near the threaded rod, and the threaded rod is threadedly connected to the second threaded opening.

[0013] As a preferred embodiment of this utility model, hooks are installed at both ends of the metal wire, an upper hanging ring is installed at the bottom of the metal head, a lower hanging ring is installed at the top of the threaded rod, the upper hook of the metal wire is connected to the upper hanging ring, and the lower hook of the metal wire is connected to the lower hanging ring.

[0014] As a preferred embodiment of this utility model, the metal head includes a protrusion, and a plurality of thickened sleeves are sequentially fitted around the protrusion.

[0015] As a preferred embodiment of this utility model, the innermost thickened sleeve bottom inner wall is threadedly connected to the bottom outer wall of the protrusion, and the outer thickened sleeve bottom is threadedly connected to the adjacent inner thickened sleeve bottom.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. In this composite percutaneous nephroscope sheath with hemostasis function, the metal wire directly contacts the bleeding point through the metal head. Combined with the external hemostatic electrode, it can quickly electrocoagulate and stop bleeding at the bleeding site during the operation without changing instruments, reducing the amount of bleeding during the operation and the time for hemostasis operation, and reducing the surgical risk caused by bleeding.

[0018] The curved structure and tapered tip of the metal head make it easier to fit the bleeding point in complex anatomical structures. Combined with the endoscopic view, it can achieve precise hemostasis and reduce damage to surrounding healthy tissues.

[0019] 2. In this composite percutaneous nephroscope sheath with hemostasis function, the metal head and the tube body are connected by a threaded ring and a first threaded opening. The metal wire is detachably connected to the upper and lower hanging rings by hooks, which facilitates quick replacement or repair of parts during the operation and shortens the instrument preparation time.

[0020] 3. This composite percutaneous nephroscope sheath with hemostatic function features a silicone grip that conforms to the curve of the hand, providing a comfortable grip; a limiting plate prevents instrument slippage, ensuring operational stability and reducing fatigue for surgeons during prolonged procedures. The tube body is made of plastic and encased in a shell, balancing flexibility and compressive strength, reducing the difficulty of operation in curved renal pelvises and minimizing mechanical damage to the renal mucosa. The outer shell is coated with lubricant, significantly reducing friction during tube insertion and removal, minimizing secondary damage to the renal canal, and improving the patient's postoperative recovery speed.

[0021] 4. In this composite percutaneous nephrolithotomy sheath with hemostatic function, the protrusions of the metal tip and the thickened sleeve are connected by threads. The surgeon can select different thicknesses of the thickened sleeve according to the needs of the surgery, flexibly adjusting the diameter of the puncture tip and reducing the risk of tearing surrounding tissues during puncture. The arc-shaped design of the outer wall of the metal tip can distribute pressure during puncture, avoiding excessive cutting of the renal parenchyma by sharp edges, and reducing postoperative bleeding and hematoma formation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the metal wire in this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the metal head in this utility model;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Tube body; 11. Outer shell; 12. First threaded port; 13. Second threaded port; 2. Grip sleeve; 3. Limiting plate; 4. Protective cover; 5. Metal head; 51. Protrusion; 52. Thickened sleeve; 53. Upper hanging ring; 54. Threaded ring; 6. Metal wire; 61. Hook; 62. Threaded rod; 63. Electrode plate connector; 64. Lower hanging ring. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] This invention provides a composite percutaneous nephroscope sheath with hemostatic function, such as... Figures 1-4 As shown, the device includes a tube body 1, with a metal head 5 installed at its head end and a protective cover 4 installed at its tail end. Inside the protective cover 4, a metal wire 6 is installed within the tube body 1. One end of the metal wire 6 is connected to the metal head 5, and the other end is connected to a threaded rod 62. An electrode connector 63 is installed at the outer end of the threaded rod 62, and the electrode connector 63 is connected to an external hemostatic electrode. This design enables the percutaneous nephrolithotomy sheath to have hemostatic function. The metal wire 6 contacts the bleeding point through the metal head 5, and combined with the external hemostatic electrode, electrocoagulation hemostasis can be performed on the bleeding site during surgery without the need for additional hemostatic instruments, simplifying the surgical procedure and reducing the risk of bleeding.

[0031] In this embodiment, a grip sleeve 2 is fitted onto the outer wall of the tube body 1 near the protective cover 4. The grip sleeve 2 is made of silicone material. The silicone grip sleeve 2 has good flexibility and anti-slip properties, providing doctors with a comfortable grip, reducing hand fatigue during long-term surgery, and improving the stability and accuracy of the operation.

[0032] Specifically, a ring-shaped limiting plate 3 is installed at one end of the grip sleeve 2 near the protective cover 4. The limiting plate 3 serves to limit and protect the instrument, preventing the doctor from moving their hand too far forward during the operation, thus ensuring surgical safety and avoiding accidental injury to the patient.

[0033] Furthermore, the outer wall of the metal tip 5 is an outwardly convex arc-shaped structure, and the tip is a conical structure. The arc-shaped and conical tip design of the metal tip 5 helps to reduce damage to surrounding tissues during puncture. At the same time, the arc-shaped structure can disperse the pressure during puncture to a certain extent, reducing the risk of kidney tissue tearing and improving the safety and effectiveness of the surgery.

[0034] Furthermore, the tube body 1 is made of plastic material, and an outer shell 11 is fitted over it. The surface of the outer shell 11 is coated with a lubricant. The plastic tube body 1 has good flexibility and a certain compressive strength, which facilitates operation within the complex anatomical structure of the kidney. The lubricant on the surface of the outer shell 11 can reduce the friction during the insertion and removal of the tube body 1, reduce mechanical damage to the kidney passage, and improve the patient's postoperative recovery.

[0035] Furthermore, the tube body 1 has a first threaded opening 12 near the end of the metal head 5, and a threaded ring 54 is installed at the bottom end of the metal head 5. The threaded ring 54 is threadedly connected to the first threaded opening 12. The threaded connection allows the metal head 5 to be detachably connected to the tube body 1, which facilitates the replacement of metal heads 5 of different specifications according to surgical needs, while ensuring the stability of the connection and preventing the metal head 5 from falling off during the operation.

[0036] Furthermore, a second threaded opening 13 is provided at one end of the tube body 1 near the threaded rod 62, and the threaded rod 62 is threadedly connected to the second threaded opening 13. The threaded connection between the threaded rod 62 and the tube body 1 allows the metal wire 6 to be stably installed inside the tube body 1, ensuring a reliable connection between the metal wire 6 and the external hemostatic electrode, and ensuring the normal functioning of the hemostatic function.

[0037] Example 2

[0038] To further facilitate the installation and disassembly of the metal wire 6, based on Embodiment 1, hooks 61 are installed at both ends of the metal wire 6, an upper hanging ring 53 is installed at the bottom of the metal head 5, and a lower hanging ring 64 is installed at the top of the threaded rod 62. The upper hook 61 of the metal wire 6 is connected to the upper hanging ring 53, and the lower hook 61 of the metal wire 6 is connected to the lower hanging ring 64. The connection method between the hooks 61 and the hanging rings allows the metal wire 6 to be easily connected and disassembled with the metal head 5 and the threaded rod 62, facilitating the installation, maintenance, and replacement of the metal wire 6, and improving the flexibility and maintainability of the instrument.

[0039] Furthermore, the metal tip 5 includes a protrusion 51, and a plurality of thickened sleeves 52 are sequentially fitted over the protrusion 51. The design of the thickened sleeves 52 can increase the strength and hardness of the metal tip 5. Doctors can select different numbers of thickened sleeves 52 according to the needs of the surgery, flexibly adjust the puncture performance of the metal tip 5, and adapt to the kidney tissue conditions of different patients.

[0040] Furthermore, the innermost thickened sleeve 52 is threadedly connected to the bottom outer wall of the protrusion 51, and the bottom of the outer thickened sleeve 52 is threadedly connected to the bottom of the adjacent inner thickened sleeve 52. This threaded connection ensures a secure connection between the thickened sleeve 52 and the protrusion 51, as well as between adjacent thickened sleeves 52, guaranteeing the stability of the metal head 5 during puncture. It also allows for the addition or reduction of the number of thickened sleeves 52 as needed, adjusting the performance of the metal head 5.

[0041] In use, the composite percutaneous nephrolithotomy sheath with hemostatic function of this invention is first used during percutaneous nephrolithotomy. When a bleeding point is found, the surgeon holds the grip sleeve 2, determines the appropriate grip position using the limiting plate 3, and inserts the tube body 1 along with the metal head 5 into the kidney channel. The arc surface and conical tip structure of the metal head 5 help reduce damage to surrounding tissues and distribute puncture pressure. After the metal head 5 reaches the bleeding point, the external hemostatic electrode conducts current to the metal head 5 through the electrode connector 63, threaded rod 62, and metal wire 6. The metal head 5 contacts the bleeding point and performs electrocoagulation hemostasis. Due to the presence of the metal wire 6, the current can be transmitted stably, ensuring the hemostatic effect.

[0042] During surgery, lubricant reduces friction when the tube 1 is inserted into and removed from the kidney passage, minimizing mechanical damage to the kidney tissue. Tube 1 provides a channel for the installation and support of components such as the metal head 5 and the metal wire 6. The silicone grip sleeve 2 provides a comfortable grip for the surgeon, reducing hand fatigue during prolonged surgery. The limiting plate 3 serves to limit and protect the instruments, preventing excessive forward movement of the surgeon's hand during the procedure and ensuring surgical safety.

[0043] The curved and tapered tip design of the metal tip 5 helps reduce damage to surrounding tissues during puncture, disperses pressure during puncture, and reduces the risk of kidney tissue tearing. The thickened sleeve 52 increases the strength and rigidity of the metal tip 5, and doctors can select different numbers of thickened sleeves 52 according to surgical needs to flexibly adjust the puncture performance of the metal tip 5. The threaded ring 54 is threaded to the first threaded port 12 of the tube body 1, making the metal tip 5 detachably connected to the tube body 1, facilitating the replacement of metal tips 5 of different specifications.

[0044] The metal wire 6 is connected to the metal head 5 and the threaded rod 62 via a hook 61, serving to conduct current and transmit the current from the external hemostatic electrode to the metal head 5, thus achieving hemostasis. Simultaneously, the hook 61 allows for easy connection and disconnection of the metal wire 6 to the metal head 5 and the threaded rod 62, facilitating installation, maintenance, and replacement. The threaded rod 62 is threaded to the tube body 1 via a second threaded port 13, ensuring the metal wire 6 is stably installed inside the tube body 1 and guaranteeing a reliable connection between the metal wire 6 and the external hemostatic electrode. The electrode connector 63 is used to connect the external hemostatic electrode, transmitting current to the metal wire 6.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite percutaneous nephroscope sheath with hemostatic function, comprising a tubular body (1), characterized in that: The tube body (1) is equipped with a metal head (5) at the head end and a protective cover (4) at the tail end. The inner side of the protective cover (4) is equipped with a metal wire (6) inside the tube body (1). One end of the metal wire (6) is connected to the metal head (5), and the other end of the metal wire (6) is connected to a threaded rod (62). An electrode connector (63) is installed at the outer end of the threaded rod (62), and the electrode connector (63) is connected to an external hemostatic electrode.

2. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, characterized in that: The outer wall of the tube (1) near the protective cover (4) is fitted with a grip sleeve (2), which is made of silicone material.

3. The composite percutaneous nephroscope sheath with hemostatic function according to claim 2, characterized in that: The grip sleeve (2) is fitted with an annular limiting plate (3) at one end near the protective cover (4).

4. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, characterized in that: The outer wall of the metal head (5) is an outwardly convex arc structure, and the head end is a conical structure.

5. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, characterized in that: The tube body (1) is made of plastic material and is covered with an outer shell (11), the surface of which is coated with lubricant.

6. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, characterized in that: The tube body (1) has a first threaded opening (12) near the end of the metal head (5). A threaded ring (54) is installed at the bottom end of the metal head (5), and the threaded ring (54) is threadedly connected to the first threaded opening (12).

7. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, characterized in that: The tube body (1) has a second threaded opening (13) at one end near the threaded rod (62), and the threaded rod (62) is threadedly connected to the second threaded opening (13).

8. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, characterized in that: The metal wire (6) has hooks (61) installed at both ends, the metal head (5) has an upper hanging ring (53) installed at the bottom, the threaded rod (62) has a lower hanging ring (64) installed at the top, the upper hook (61) of the metal wire (6) is connected to the upper hanging ring (53), and the lower hook (61) of the metal wire (6) is connected to the lower hanging ring (64).

9. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, characterized in that: The metal head (5) includes a protrusion (51), and a plurality of thickened sleeves (52) are sequentially fitted on the outside of the protrusion (51).

10. The composite percutaneous nephroscope sheath with hemostatic function according to claim 9, characterized in that: The innermost thickened sleeve (52) is threaded to the bottom outer wall of the protrusion (51), and the bottom of the outer thickened sleeve (52) is threaded to the bottom of the adjacent inner thickened sleeve (52).

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