Composite percutaneous nephroscope sheath with hemostasis function

Abstract

The invention relates to the technical field of percutaneous nephroscope sheaths, in particular to a composite percutaneous nephroscope sheath with a hemostasis function, which comprises a tube body, a metal head is mounted at the head end of the tube body, a protective cover is mounted at the tail end of the tube body, and a metal wire is mounted in the tube body and mounted on the inner side of the protective cover. One end of the metal wire is connected with the metal head, the other end of the metal wire is connected with a threaded rod, the outer end of the threaded rod is provided with an electrode slice connector, and the electrode slice connector is connected with an external hemostatic electrode. According to the combined type percutaneous nephroscope sheath with the hemostasis function, the metal wire is in direct contact with a bleeding point through the metal head and is combined with an external hemostasis electrode, electric coagulation hemostasis can be rapidly conducted on the bleeding part in an operation, instruments do not need to be replaced, the bleeding amount in the operation is reduced, the hemostasis operation time is shortened, and the operation risk caused by bleeding is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of percutaneous nephroscope sheaths, and more particularly to a composite percutaneous nephroscope sheath with a hemostatic function. Background Art

[0002] In the field of urology, percutaneous nephroscopy is a commonly used method for treating kidney diseases such as kidney stones and ureteropelvic junction stenosis. As a key instrument in percutaneous nephroscopy, the percutaneous nephroscope sheath mainly functions to establish a percutaneous renal access channel, provide a passage for the insertion and operation of the nephroscope, and facilitate the inflow and outflow of irrigation fluid during the operation as well as the removal of substances such as stones.

[0003] However, traditional percutaneous nephroscope sheaths have certain limitations in function. On the one hand, during the operation, the renal tissue is relatively fragile, and the surgical operation will inevitably cause certain damage to the renal blood vessels, resulting in bleeding. Most of the existing percutaneous nephroscope sheaths do not have a hemostatic function. Once bleeding occurs, doctors need to use additional hemostatic instruments or drugs to stop the bleeding, which not only increases the complexity and difficulty of the operation, prolongs the operation time, but also may increase the patient's pain and surgical risks, such as severe complications like shock caused by excessive bleeding.

[0004] On the other hand, there are also some deficiencies in the structural design of traditional percutaneous nephroscope sheaths. For example, the material and surface treatment method of the tube body may affect its lubricity and passability in the body, resulting in an unsmooth insertion and extraction process and increasing the damage to the renal tissue; the design of the metal head may not be reasonable enough, and it is easy to cause unnecessary damage to the surrounding tissues during the puncture process; the design of the holding part may not conform to ergonomics, and doctors are prone to fatigue during long-term surgical operations, affecting the stability and accuracy of the surgical operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a composite percutaneous nephroscope sheath with a hemostatic function to solve the problem of certain limitations in the function of traditional percutaneous nephroscope sheaths as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides a composite percutaneous nephroscope sheath with a hemostatic function, including a tube body. A metal head is installed at the head end of the tube body, and a protective cover is installed at the tail end of the tube body. A metal wire is arranged inside the tube body, one end of the metal wire is connected to the metal head, the other end of the metal wire is connected to a threaded rod, and an electrode piece connector is installed at the outer end of the threaded rod. The electrode piece connector is connected to an external hemostatic electrode.

[0007] As a preferred solution of the present invention, a holding sleeve is sleeved on the outer wall of the tube body near the protective cover, and the holding sleeve is made of silica gel material.

[0008] As a preferred solution of the present invention, an annular limiting plate is installed at one end of the gripping sleeve close to the protective cover.

[0009] As a preferred solution of the present invention, the outer wall of the metal head is an outwardly protruding arc surface structure, and the head end is a conical structure.

[0010] As a preferred solution of the present invention, the tube body is made of plastic material, and is covered with an outer shell. The surface of the outer shell is coated with a lubricant.

[0011] As a preferred solution of the present invention, the tube body is provided with a first threaded opening at one end close to the metal head, and a threaded ring is installed at the bottom end of the metal head, and the threaded ring is threadedly connected to the first threaded opening.

[0012] As a preferred solution of the present invention, a second threaded opening is provided at one end of the tube body close to the threaded rod, and the threaded rod is threadedly connected to the second threaded opening.

[0013] As a preferred embodiment of the present invention, 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 end hook of the metal wire is connected to the upper hanging ring, and the lower end hook of the metal wire is connected to the lower hanging ring.

[0014] As a preferred solution of the present invention, the metal head comprises a protrusion, and a plurality of thickened sleeves are sequentially sleeved on the outside of the protrusion.

[0015] As a preferred solution of the present invention, the inner wall of the bottom of the innermost thickened sleeve is threadedly connected to the outer wall of the bottom of the protrusion, and the bottom of the outer thickened sleeve is threadedly connected to the bottom of the inner adjacent thickened sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the composite percutaneous nephroscopic sheath with hemostasis function, the metal wire directly contacts the bleeding point through the metal head. Combined with the external hemostasis electrode, it can quickly perform electrocoagulation hemostasis on the bleeding site during surgery without changing the instrument, reducing the amount of intraoperative bleeding and the time of hemostasis operation, and reducing the surgical risk caused by bleeding.

[0017] The arc surface structure and tapered head design of the metal head make it easier to fit the bleeding point in complex anatomical structures, and cooperate with the endoscopic field of view to achieve precise hemostasis and reduce damage to surrounding healthy tissues.

[0018] 2. In the composite percutaneous nephroscope sheath with hemostasis function, the metal head is threadedly connected to the tube body through a threaded ring and a first threaded opening, and the metal wire is detachably connected to the upper hanging ring and the lower hanging ring through a hook, which is convenient for rapid replacement or maintenance of parts during surgery and shortens the equipment preparation time.

[0019] 3. In the composite percutaneous nephroscope sheath with hemostasis function, the silicone gripping sleeve fits the curve of the hand and provides a comfortable grip; the limit plate prevents the instrument from slipping, ensures the stability of operation, and reduces the fatigue of doctors during long-term surgery. The tube body is made of plastic material and is covered with an outer shell, which takes into account flexibility and compressive strength, reduces the difficulty of operation in the curved renal pelvis, and reduces mechanical damage to the renal mucosa. The surface of the outer shell is coated with lubricant, which significantly reduces the friction during the insertion and removal of the tube body, reduces secondary damage to the renal channel, and improves the patient's recovery speed after surgery.

[0020] 4. In the composite percutaneous nephroscope sheath with hemostasis function, the bump of the metal head is connected to the thickened sleeve by threads. Doctors can choose thickened sleeves of different thicknesses according to surgical needs, flexibly adjust the diameter of the puncture head, and reduce the risk of tearing surrounding tissues during puncture. The arc surface design of the outer wall of the metal head can disperse the pressure during puncture, avoid excessive cutting of the renal parenchyma by the sharp edge, and reduce postoperative bleeding and hematoma formation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the metal wire in the present invention; Figure 4 It is a schematic diagram of the structure of the metal head in the present invention; The meaning of each number in the figure is: 1. Tube body; 11. Shell; 12. First threaded opening; 13. Second threaded opening; 2. Holding sleeve; 3. Limiting plate; 4. Protective cover; 5. Metal head; 51. Bump; 52. Thickened sleeve; 53. Upper hanging ring; 54. Threaded ring; 6. Metal wire; 61. Hook; 62. Threaded rod; 63. Electrode sheet connector; 64. Lower hanging ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1 The present invention provides a composite percutaneous nephroscopic sheath with hemostatic function, such as Figures 1-4As shown in the figure, it includes a tube body 1. A metal head 5 is installed at the head end of the tube body 1, and a protective cover 4 is installed at the tail end of the tube body 1. Inside the protective cover 4, there is a metal wire 6 disposed 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 piece connector 63 is installed at the outer end of the threaded rod 62, and the electrode piece connector 63 is connected to an external hemostatic electrode. This design enables the percutaneous nephroscope sheath to have a hemostatic function. The metal wire 6 contacts the bleeding point through the metal head 5. Combining with the external hemostatic electrode, it can perform electrocoagulation hemostasis on the bleeding site during the operation, eliminating the need to use additional hemostatic instruments, simplifying the surgical operation, and reducing the bleeding risk.

[0024] In this embodiment, a holding sleeve 2 is sleeved on the outer wall of the tube body 1 near the protective cover 4, and the holding sleeve 2 is made of silicone material. The silicone holding sleeve 2 has good flexibility and anti-slip properties, providing a comfortable holding feel for the doctor, reducing hand fatigue during long operations, and improving the stability and accuracy of the operation.

[0025] Specifically, a circular limiting plate 3 is installed at one end of the holding sleeve 2 near the protective cover 4. The limiting plate 3 plays a role in limiting and protecting, preventing the doctor's hand from moving forward excessively during the operation, resulting in the instrument slipping off, ensuring the safety of the operation, and avoiding accidental injury to the patient.

[0026] Furthermore, the outer wall of the metal head 5 is an outwardly convex arc surface structure, and the head end is a conical structure. The arc surface and conical head end design of the metal head 5 help reduce damage to the surrounding tissues during the puncture process. At the same time, the arc surface structure can disperse the pressure during the puncture to a certain extent, reducing the risk of kidney tissue tearing, and improving the safety and effectiveness of the operation.

[0027] Furthermore, the tube body 1 is made of plastic material, and an outer shell 11 is sleeved outside it. A lubricant is coated on the surface of the outer shell 11. The plastic tube body 1 has good flexibility and a certain compressive strength, facilitating operation in the complex anatomical structure of the kidney. The lubricant on the surface of the outer shell 11 can reduce the friction when the tube body 1 is inserted and removed, reduce mechanical damage to the kidney channel, and improve the postoperative recovery effect of the patient.

[0028] Furthermore, a first threaded port 12 is provided at one end of the tube body 1 near 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 port 12. The threaded connection method enables the metal head 5 to be detachably connected to the tube body 1, facilitating the replacement of different specifications of the metal head 5 according to the surgical needs, and at the same time ensuring the stability of the connection, preventing the metal head 5 from falling off during the operation.

[0029] Furthermore, a second threaded port 13 is provided at one end of the tube body 1 close to the threaded rod 62, and the threaded rod 62 is threadedly connected to the second threaded port 13. The threaded connection between the threaded rod 62 and the tube body 1 enables 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.

[0030] Embodiment 2 In order 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 hook 61 and the hanging ring enables the metal wire 6 to be conveniently 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.

[0031] Furthermore, the metal head 5 includes a convex block 51, and several thickening sleeves 52 are sequentially sleeved outside the convex block 51. The design of the thickening sleeve 52 can increase the strength and hardness of the metal head 5. Doctors can select different numbers of thickening sleeves 52 according to the surgical requirements, flexibly adjust the puncture performance of the metal head 5, and adapt to the kidney tissue conditions of different patients.

[0032] Furthermore, the inner wall of the bottom of the innermost thickening sleeve 52 is threadedly connected to the outer wall of the bottom of the convex block 51, and the bottom of the outer thickening sleeve 52 is threadedly connected to the bottom of the adjacent inner thickening sleeve 52. The threaded connection method makes the connection between the thickening sleeve 52 and the convex block 51 and the adjacent thickening sleeves 52 firm, ensuring the stability of the metal head 5 during the puncture process. At the same time, it is convenient to increase or decrease the number of thickening sleeves 52 according to needs and adjust the performance of the metal head 5.

[0033] When the composite percutaneous nephroscope sheath with a hemostatic function of the present invention is in use, first, during a percutaneous nephroscopic surgery, when a bleeding point is found, the doctor holds the holding sleeve 2, determines a suitable holding position through the limiting plate 3, inserts the tube body 1 together with the metal head 5 into the kidney channel. The arc surface and conical head end structure of the metal head 5 help reduce damage to the surrounding tissues and disperse the puncture pressure. After the metal head 5 reaches the bleeding point, an external hemostatic electrode conducts current to the metal head 5 through the electrode piece connector 63, the threaded rod 62, and the metal wire 6. The metal head 5 contacts the bleeding point to perform electrocoagulation hemostasis on the bleeding site. Due to the presence of the metal wire 6, the current can be stably transmitted, ensuring the hemostatic effect.

[0034] During the operation, the lubricant reduces the friction when the tube body 1 is inserted into and withdrawn from the kidney passage, and reduces the mechanical damage to the kidney tissue. The tube body 1 provides a passage for installing and supporting components such as the metal head 5 and the metal wire 6. The silicone gripping sleeve 2 provides a comfortable gripping feel for the doctor and reduces hand fatigue during long operations. The limiting plate 3 plays a role in limiting and protecting, preventing the doctor's hand from moving forward excessively during the operation, resulting in the instrument slipping off, and ensuring the safety of the operation.

[0035] The arc surface and conical head end design of the metal head 5 help to reduce the damage to the surrounding tissues during the puncture process, disperse the pressure during the puncture, and reduce the risk of kidney tissue tearing. The design of the thickening sleeve 52 can increase the strength and hardness of the metal head 5. The doctor can choose different numbers of thickening sleeves 52 according to the operation requirements to flexibly adjust the puncture performance of the metal head 5. The threaded ring 54 is threadedly connected to the first threaded port 12 of the tube body 1, so that the metal head 5 is detachably connected to the tube body 1, which is convenient for replacing metal heads 5 of different specifications.

[0036] The metal wire 6 is connected to the metal head 5 and the threaded rod 62 through the hook 61, and plays a role in conducting current, transmitting the current of the external hemostatic electrode to the metal head 5 to achieve the hemostasis function. At the same time, the connection method of the hook 61 enables the metal wire 6 to be conveniently connected and detached from the metal head 5 and the threaded rod 62, which is convenient for the installation, maintenance and replacement of the metal wire 6. The threaded rod 62 is threadedly connected to the tube body 1 through the second threaded port 13, so that the metal wire 6 can be stably installed inside the tube body 1, ensuring a reliable connection between the metal wire 6 and the external hemostatic electrode. The electrode piece connector 63 is used to connect the external hemostatic electrode and transmit the current to the metal wire 6.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

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

2. The composite percutaneous nephroscope sheath with a hemostatic function according to claim 1, wherein: A grip sleeve (2) is sleeved on the outer wall of one end of the tube body (1) close to the protective cover (4), and the grip sleeve (2) is made of silica gel material.

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

4. The composite percutaneous nephroscope sheath with a hemostatic function according to claim 1, characterized in that: The outer wall of the metal head (5) is an outwardly convex arc surface 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 an outer shell (11) is sleeved outside it, and a lubricant is coated on the surface of the outer shell (11).

6. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, wherein: A first threaded port (12) is arranged at one end of the tube body (1) close to 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 in threaded connection with the first threaded port (12).

7. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, wherein: A second threaded port (13) is arranged at one end of the tube body (1) close to the threaded rod (62), and the threaded rod (62) is in threaded connection with the second threaded port (13).

8. The composite percutaneous nephroscope sheath with hemostatic function according to claim 1, wherein: 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), a lower hanging ring (64) is installed at the top end 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).

9. The composite percutaneous nephroscope sheath with a hemostatic function according to claim 1, wherein: The metal head (5) includes a convex block (51), and a plurality of thickening sleeves (52) are sequentially sleeved outside the convex block (51).

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

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