Large-aperture artery puncture plugging device

Abstract

The invention discloses a large-aperture artery puncture plugging device, and belongs to the technical field of medical instruments. Comprising a guide pipe, the upper surface of the guide pipe is fixedly connected with an extrusion cavity, the upper surface of the extrusion cavity is provided with a circular groove, the interior of the circular groove is slidably connected with a circular cavity, the inner side wall of the circular cavity is in threaded connection with a threaded groove, the inner side wall of the circular groove is provided with a clamping thread, and the upper surface of the circular cavity is fixedly connected with a circular plate. According to the plugging device, through innovative combination of air pressure conduction and mechanical locking, accurate regulation and control of the plugging pressure of a puncture point are achieved. When the round cavity moves downwards along the clamping thread, air pressure generated by compression of the air squeezing ring is conducted to the blocking air bag through the air groove, the expansion degree of the air squeezing ring and the downward pressing amount of the air squeezing ring are in a linear relation, dynamic balance is formed between the elastic force of the reset spring and the internal pressure of the air bag, and the risk of excessive blood vessel expansion caused by continuous inflation of a traditional balloon is avoided; and the constant-pressure state of the air bag is maintained through a locking structure of the thread groove and the clamping thread.

Description

Technical Field

[0001] The present invention relates to the technology of medical devices, and particularly to a large-aperture arterial puncture occluder. Background Art

[0002] As a basic technology for interventional diagnosis and treatment, arterial puncture has irreplaceable clinical value in the fields of cardiovascular diseases, tumor treatment, etc. The traditional hemostasis method after arterial puncture mainly relies on manual compression, which requires continuous pressing for 15 - 30 minutes. This not only increases the work intensity of medical staff, but also may cause complications such as hematoma and pseudoaneurysm due to improper compression. With the development of interventional devices, existing occluders mostly adopt mechanical suture or biocompatible material occlusion technology, but there are defects such as complex operation, insufficient sealing, and high risk of vascular injury. For example, suture-type occluders require suture operations inside the blood vessel, which have high requirements for the operator's skills; bioglue occlusion has problems such as long curing time and possible inflammatory reactions caused by degradation products;

[0003] For the special needs of large-aperture arterial puncture (diameter ≥ 8F), existing devices still need to be improved in terms of occlusion efficiency and safety. Although traditional balloon occluders can quickly close blood vessels, they need to continuously inflate to maintain pressure, which is likely to cause damage to the vascular intima; spiral occluding devices achieve hemostasis through mechanical anchoring, but lack a pressure feedback mechanism and have a risk of over-compressing blood vessels. In addition, existing occluders generally lack visual operation guidance, making it difficult for operators to accurately judge the occlusion state and increasing the probability of postoperative rebleeding;

[0004] Therefore, there is a need for a device that can safely and efficiently stop bleeding after large-aperture arterial puncture, while optimizing the operation process of interventional surgery and improving the operator's control experience. Summary of the Invention

[0005] Object of the Invention: The object of the present invention is to provide a device that can safely and efficiently stop bleeding after large-aperture arterial puncture; another object of the present invention is to provide an optimized operation process for interventional surgery and improve the operator's control experience.

[0006] Technical Solution: A large-aperture arterial puncture occluder includes a guiding tube. The upper surface of the guiding tube is fixedly connected with an extrusion cavity. The upper surface of the extrusion cavity is provided with a circular groove. A circular cavity is slidably connected inside the circular groove. The inner side wall of the circular cavity is threadedly connected with a threaded groove. The inner side wall of the circular groove is provided with a clamping thread. The upper surface of the circular cavity is fixedly connected with a circular plate.

[0007] Furthermore, the upper surface of the extrusion cavity is provided with an air extrusion cavity. An air extrusion ring is slidably connected inside the air extrusion cavity. The upper surface of the air extrusion ring is fixedly connected with a fixed column. The top end of the fixed column penetrates above the air extrusion cavity and is fixedly connected with the lower surface of the circular plate.

[0008] Further, an air groove is provided inside the guiding tube. An extrusion round groove is provided on the lower surface of the air groove. An air extrusion round block is slidably connected inside the extrusion round groove. A stretching column is fixedly connected to the lower surface of the air extrusion round block. A reset spring is wound around the outer sidewall of the stretching column. The top end of the reset spring is fixedly connected to the lower surface of the air extrusion round block, and the bottom end of the reset spring is fixedly connected to the upper surface of the inner part of the extrusion round groove. A blowing lower groove is fixedly communicated with the lower surface of the extrusion round groove. A sealing airbag is fixedly connected to the lower part of the inner sidewall of the blowing lower groove.

[0009] Further, a groove is provided on the lower surface inside the round groove. A pressing switch is fixedly connected inside the groove. A warning lamp is fixedly connected to the right side of the lower surface of the extrusion cavity.

[0010] Further, a cylinder is fixedly connected to the upper surface of the round plate. A cross bar is fixedly connected to the outer sidewall of the cylinder. A rotating rod is rotatably connected to the right side of the upper surface of the cross bar.

[0011] Further, anti-slip lines are provided on the outer sidewall of the extrusion cavity.

[0012] Beneficial effects: Through the innovative combination of air pressure conduction and mechanical locking, this occluder realizes the precise regulation of the puncture point occlusion pressure. When the round cavity moves downward along the engaging thread, the air pressure generated by the compression of the air extrusion ring is conducted to the sealing airbag through the air groove. The degree of its expansion is linearly related to the downward pressure of the air extrusion ring. The elastic force of the reset spring and the internal pressure of the airbag form a dynamic balance, which not only avoids the risk of excessive blood vessel dilation caused by continuous inflation of the traditional balloon, but also maintains the constant pressure state of the airbag through the locking structure of the thread groove and the engaging thread. In the withdrawal stage, after reversing the rotation of the round plate to release the thread lock, the air extrusion ring quickly resets under the dual action of the reset spring and the back pressure of the airbag. The gas in the airbag flows back to the air extrusion cavity along the original path. This closed gas circulation system avoids the problem of blood reflux that may occur during the traditional deflation process. Combined with the extinguishing prompt of the warning lamp, it ensures that the operator can safely withdraw the guiding tube after confirming that the airbag has completely contracted;

[0013] When the round plate is pressed down to trigger the pressing switch, the warning lamp lights up, indicating that the operator the sealing airbag has reached the target position and starts to inflate. The combination of the concave-convex texture design of the anti-slip lines and the ergonomic cross bar significantly improves the operation stability. In the grip test simulating a humid environment, the anti-slip lines increase the friction coefficient from... to..., effectively avoiding the risk of instrument slippage caused by blood contamination. The combined control structure of the cross bar and the rotating rod allows the operator to perform multi-angle fine adjustment by rotating with one hand. This design is particularly suitable for the operation requirements in the narrow space during interventional surgery, enabling the operator to maintain precise control of the device while maintaining aseptic operation, and significantly reducing the incidence of complications caused by operation errors. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present invention;

[0015] Figure 2 is the partial cross-sectional schematic diagram of the present invention;

[0016] Figure 3 is the cross-sectional schematic diagram of the extrusion cavity of the present invention;

[0017] Figure 4 is the cross-sectional schematic diagram of the guiding tube of the present invention.

[0018] In the figure: 1. Guiding tube; 2. Extrusion cavity; 3. Circular groove; 4. Circular cavity; 5. Threaded groove; 6. Engaging thread; 7. Circular plate; 8. Air extrusion cavity; 9. Air extrusion ring; 10. Fixed column; 11. Air groove; 12. Extrusion circular groove; 13. Air extrusion circular block; 14. Extension column; 15. Return spring; 16. Blowing lower groove; 17. Sealing airbag; 18. Groove; 19. Press switch; 20. Warning light; 21. Cylinder; 22. Cross bar; 23. Rotating rod; 24. Anti-slip pattern. Specific embodiments

[0019] To make the technical solution of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

[0020] Embodiment

[0021] As Figures 1-4 shown, a large-bore arterial puncture occluder is provided, which includes a guiding tube 1. The upper surface of the guiding tube 1 is fixedly connected with an extrusion cavity 2. A circular groove 3 is opened on the upper surface of the extrusion cavity 2. A circular cavity 4 is slidably connected inside the circular groove 3. The inner side wall of the circular cavity 4 is threadedly connected with a threaded groove 5. An engaging thread 6 is opened on the inner side wall of the circular groove 3. The upper surface of the circular cavity 4 is fixedly connected with a circular plate 7. An air extrusion cavity 8 is opened on the upper surface of the extrusion cavity 2. An air extrusion ring 9 is slidably connected inside the air extrusion cavity 8. The upper surface of the air extrusion ring 9 is fixedly connected with a fixed column 10. The top end of the fixed column 10 penetrates above the air extrusion cavity 8 and is fixedly connected with the lower surface of the circular plate 7. An air groove 11 is opened inside the guiding tube 1. An extrusion circular groove 12 is opened on the lower surface of the air groove 11. An air extrusion circular block 13 is slidably connected inside the extrusion circular groove 12. The lower surface of the air extrusion circular block 13 is fixedly connected with an extension column 14. A return spring 15 is wound around the outer side wall of the extension column 14. The top end of the return spring 15 is fixedly connected with the lower surface of the air extrusion circular block 13. The bottom end of the return spring 15 is fixedly connected with the inner upper surface of the extrusion circular groove 12. The lower surface of the extrusion circular groove 12 is fixedly communicated with a blowing lower groove 16. A sealing airbag 17 is fixedly connected to the lower part of the inner side wall of the blowing lower groove 16;

[0022] The guiding tube 1 is inserted into the artery through the puncture point, and the insertion depth is adjusted by the sliding fit between the extrusion cavity 2 and the circular groove 3. The operator rotates the circular plate 7, driving the circular cavity 4 to move downward along the engaging thread 6, so that the fixing column 10 pushes the air extrusion ring 9 to slide downward in the air extrusion cavity 8, generating air pressure. The gas compressed by the air extrusion ring 9 enters the extrusion circular groove 12 through the air groove 11, pushing the air extrusion block 13 to move downward and compressing the return spring 15. The gas then enters the sealing airbag 17 through the air blowing lower groove 16, causing it to expand and fit against the blood vessel wall, achieving physical sealing of the puncture point. The circular cavity 4 is locked through the thread fit between the thread groove 5 and the engaging thread 6, maintaining the compressed state of the air extrusion ring 9 to ensure continuous inflation pressure of the airbag. The elastic force of the return spring 15 balances the air pressure, preventing over-expansion from damaging the blood vessel. Rotating the circular plate 7 in the reverse direction releases the thread lock, and the air extrusion ring 9 resets under air pressure balance. The gas in the sealing airbag 17 flows back through the air groove 11, and the airbag contracts. The return spring 15 pushes the air extrusion block 13 to reset, and finally the guiding tube 1 is safely withdrawn.

[0023] In this embodiment, a groove 18 is provided on the inner lower surface of the circular groove 3, a push switch 19 is fixedly connected inside the groove 18, a warning light 20 is fixedly connected to the right side of the lower surface of the extrusion cavity 2, a cylinder 21 is fixedly connected to the upper surface of the circular plate 7, a cross bar 22 is fixedly connected to the outer side wall of the cylinder 21, and a rotating rod 23 is rotatably connected to the right side of the upper surface of the cross bar 22;

[0024] After the guiding tube 1 is inserted into the artery, the operator holds the cross bar 22 and rotates the rotating rod 23, driving the cylinder 21 and the circular plate 7 to rotate. The circular cavity 4 slides downward through the engaging thread 6 until the circular plate 7 is pressed down to the bottom of the groove 18, triggering the push switch 19. At this time, the warning light 20 lights up, indicating that the device is in place. The downward movement of the circular cavity 4 pushes the air extrusion ring 9 to compress the gas in the air extrusion cavity 8, and the gas enters the extrusion circular groove 12 through the air groove 11. The air extrusion block 13 is pressed downward, and the gas fills the sealing airbag 17 through the air blowing lower groove 16, causing it to expand and fit against the blood vessel wall to complete the sealing. The warning light 20 remains lit, indicating the sealing state. If fine adjustment is required during the operation, the angle of the cross bar 22 can be adjusted by rotating the rotating rod 23 to change the pressure on the circular plate 7. Rotating the rotating rod 23 in the reverse direction, the airbag 17 contracts. The return spring 15 pushes the air extrusion block 13 to reset, and the gas flows back to the air extrusion cavity 8. After the warning light 20 goes out, the guiding tube 1 is safely withdrawn.

[0025] In this embodiment, anti-slip patterns 24 are provided on the outer side wall of the extrusion cavity 2;

[0026] The anti-slip patterns 24 provided on the outer side wall of the extrusion cavity 2 are designed with dense concave and convex textures, significantly enhancing the friction during operation and avoiding slipping during gripping caused by wet hands or blood contamination. This structure enables the operator to accurately control the force when rotating the cross bar 22 or pressing the circular plate 7, ensuring the stability of the downward pressing action of the air extrusion ring 9, thereby maintaining the continuity of air pressure conduction.

[0027] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. A large-bore arterial puncture occluder, comprising a guiding catheter (1), characterized in that: The upper surface of the guiding tube (1) is fixedly connected with an extrusion cavity (2). The upper surface of the extrusion cavity (2) is provided with a circular groove (3). A circular cavity (4) is slidably connected inside the circular groove (3). A threaded groove (5) is threadedly connected to the inner side wall of the circular cavity (4). A clamping thread (6) is provided on the inner side wall of the circular groove (3). A circular plate (7) is fixedly connected to the upper surface of the circular cavity (4).

2. The large-aperture arterial puncture occluder according to claim 1, characterized in that: The upper surface of the extrusion cavity (2) is provided with an air extrusion cavity (8). An air extrusion ring (9) is slidably connected inside the air extrusion cavity (8). A fixed column (10) is fixedly connected to the upper surface of the air extrusion ring (9). The top end of the fixed column (10) penetrates above the air extrusion cavity (8) and is fixedly connected to the lower surface of the circular plate (7).

3. The large-aperture arterial puncture occluder according to claim 1, characterized in that: An air groove (11) is provided inside the guiding tube (1). An extrusion circular groove (12) is provided on the lower surface of the air groove (11). An air extrusion circular block (13) is slidably connected inside the extrusion circular groove (12). An extension column (14) is fixedly connected to the lower surface of the air extrusion circular block (13). A return spring (15) is wound around the outer side wall of the extension column (14). The top end of the return spring (15) is fixedly connected to the lower surface of the air extrusion circular block (13). The bottom end of the return spring (15) is fixedly connected to the inner upper surface of the extrusion circular groove (12). The lower surface of the extrusion circular groove (12) is fixedly communicated with a blowing lower groove (16). A sealing air bag (17) is fixedly connected to the lower part of the inner side wall of the blowing lower groove (16).

4. The large-aperture arterial puncture occluder according to claim 1, wherein: A groove (18) is provided on the lower surface inside the circular groove (3). A push switch (19) is fixedly connected inside the groove (18). A warning lamp (20) is fixedly connected to the right side of the lower surface of the extrusion cavity (2).

5. The large-aperture arterial puncture occluder according to claim 2, characterized in that: A cylinder (21) is fixedly connected to the upper surface of the circular plate (7). A cross bar (22) is fixedly connected to the outer side wall of the cylinder (21). A rotating rod (23) is rotatably connected to the right side of the upper surface of the cross bar (22).

6. The large-aperture arterial puncture occluder according to claim 1, characterized in that: The outer side wall of the extrusion cavity (2) is provided with anti-slip lines (24).

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