Embolic agent backflow preventing device for prostatic artery embolism

Abstract

The utility model relates to the technical field of embolism backflow prevention, and discloses a prostatic artery embolism embolism agent backflow prevention device which comprises a tube seat, a tube body structure is installed on the top of the tube seat, and a prevention assembly is connected to the top of the tube body structure. The prevention assembly comprises a pipe head, an anti-sticking coating, an upper conical sharp barrel, a pipe tip, a partition piece and a lower conical sharp barrel. According to the embolic agent backflow prevention device for prostatic artery embolism, due to the design of the anti-sticking coating, anti-sticking protection is provided for the catheter head, the catheter is prone to disengagement after an embolic agent is injected, and therefore the risk of a prostatic artery embolism operation is greatly reduced; the embolic agent is concentrated when penetrating through the fine holes of the partition piece, so that the flowing force of the embolic agent penetrating through the fine holes of the partition piece is increased, the resistance of the embolic agent during backflow is improved, and a doctor can inject the embolic agent more trustingly.

Description

Technical Field

[0001] The utility model relates to the technical field of embolism reflux prevention, in particular to a device for preventing embolic agent reflux in prostate artery embolism. Background Art

[0002] Prostatic artery embolization is an interventional embolization technique that blocks the blood supply to the prostatic artery, causing necrosis and atrophy of the prostate, thereby reducing the size of the prostate and improving dysuria. This is a minimally invasive treatment that can protect urinary control and ejaculation functions and can be used as an alternative to surgical treatment. Intravascular embolization uses a microcatheter to inject embolic agents to achieve the purpose of sealing arteriovenous malformation lesions.

[0003] For example, the microcatheter with Chinese patent number CN214633346U uses a solvent to dissolve medical glue, and the other end of the dense mesh stent separates from the tube tip and expands, conforming to the blood vessel wall. When the embolic agent is injected, the dense mesh stent can effectively prevent the backflow of the embolic agent. However, the structure of this utility model is relatively bloated and complex, and the dense mesh stent has a mesh structure. During use, residual embolic agent is easily retained on the outer surface, affecting subsequent cleaning and use. Therefore, a device for preventing embolic agent backflow during prostate artery embolization is proposed to solve the above problem. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a prostate artery embolization device for preventing embolic agent reflux, which has the advantages of easy maintenance, reflux prevention and convenient use. It solves the problem that the comparison file structure is relatively bloated and complex, and the mesh structure has gaps that are easy to penetrate or have a large amount of residual liquid, affecting subsequent use.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for preventing embolic agent reflux in prostate artery embolism, comprising a tube seat, a tube body structure mounted on the top of the tube seat, and a prevention component connected to the top of the tube body structure;

[0008] The prevention component includes a tube head, an anti-stick coating, an upper conical tip tube, a tube tip, a separator and a lower conical tip tube. The tube head is installed on the top of the tube body structure, the outer surface of the tube head is coated with an anti-stick coating, the upper conical tip tube is installed inside the tube head, the tube tip is connected to the inside of the upper conical tip tube, the separator is installed inside the tube head, and the lower conical tip tube is installed inside the tube head.

[0009] Furthermore, the tube body structure includes a pushing section tube body and a flexible section tube body, the pushing section tube body is installed on the top of the tube seat, and the flexible section tube body is installed on the top of the pushing section tube body.

[0010] Furthermore, the bottom of the tube head is connected to the top of the flexible section tube body, the upper conical tip tube and the lower conical tip tube are symmetrically arranged up and down, and the anti-stick coating is a hydrophilic coating.

[0011] Furthermore, a limiting hole is provided on the inner top wall of the tube head, and the top end of the tube tip extends to the outside of the tube head through the opening of the limiting hole.

[0012] Furthermore, the bottom of the tube tip is snap-connected with the inner wall of the upper conical tip tube, and the size of the upper conical tip tube is the same as that of the lower conical tip tube.

[0013] Furthermore, a fine hole is formed at the bottom of the separator, the opening at the bottom of the upper conical pointed tube fits in with the opening at the top of the fine hole, and the opening at the top of the lower conical pointed tube fits in with the opening at the bottom of the fine hole.

[0014] (3) Beneficial effects

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0016] 1. The prostate artery embolization device for preventing embolic agent reflux provides a layer of anti-stick protection for the tube head through the design of an anti-stick coating, making the catheter easy to detach after injecting the embolic agent, thereby greatly reducing the risk of prostate artery embolization surgery and improving the safety of the surgery. At the same time, the design of the small openings of the upper conical tip and the lower conical tip relative to each other makes the embolic agent more concentrated when passing through the pores of the separator, thereby increasing the flow force through the pores of the separator and improving the resistance to embolic agent reflux, allowing doctors to inject the embolic agent with greater confidence and reducing the operational risks of prostate artery embolization surgery.

[0017] 2. The device for preventing reflux of embolic agents in prostate artery embolization has a larger top opening of the upper conical tip, allowing the embolic agent to flow into the interior of the upper conical tip and then diffuse out according to the inner wall structure of the upper conical tip, thereby expanding the flow of the embolic agent to the tip of the tube, further increasing the difficulty of reflux of the embolic agent. At the same time, with the upper and lower symmetrical settings of the upper and lower conical tips, and the design of the tip of the tube being embedded and clamped into the interior of the upper conical tip, the sealing of the prevention component is further improved, ensuring stability during the injection operation, thereby facilitating the user's operation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 This is a partial cross-sectional view of the utility model from the front;

[0020] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0021] In the figure: 1. Tube seat; 2. Tube body structure; 21. Push section tube body; 22. Compliant section tube body; 3. Prevention component; 301. Tube head; 302. Anti-stick coating; 303. Upper conical tip tube; 304. Tube tip; 305. Separator; 306. Lower conical tip tube. 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3 In this embodiment, a device for preventing embolic agent reflux in prostate artery embolism includes a tube seat 1, a tube body structure 2 is installed on the top of the tube seat 1, and a prevention component 3 is connected to the top of the tube body structure 2.

[0024] exist Figure 1 and Figure 2 In the figure, the tube body structure 2 is composed of a pushing section tube body 21 and a flexible section tube body 22. The pushing section tube body 21 is installed on the top of the tube seat 1, and the flexible section tube body 22 is installed on the top of the pushing section tube body 21.

[0025] exist Figure 1-3 In the figure, the prevention assembly 3 is composed of six components, namely, a tube head 301, an anti-stick coating 302, an upper conical tip tube 303, a tube tip 304, a separator 305 and a lower conical tip tube 306, which achieves the advantages of easy maintenance, prevention of reflux and convenient use.

[0026] exist Figure 3 In the figure, a tube head 301 is installed at the top of the tube body structure 2, and the outer surface of the tube head 301 is coated with an anti-stick coating 302, which is composed of a hydrophilic coating selected from common hydrophilic materials suitable for use as coatings, such as polyvinyl pyrrolidone (PVP), silicone oil, hyaluronic acid, 2-(methacryloyloxy)ethyl-(trimethylamino)ethyl phosphate (MPC).

[0027] exist Figure 3In the embodiment, an upper conical tip 303 is installed inside the tube head 301, a tube tip 304 is connected to the interior of the upper conical tip 303, a separator 305 is installed inside the tube head 301, and a lower conical tip 306 is installed inside the tube head 301. The upper and lower relative designs make the liquid outlet small and the flow rate greater than the reflux rate, thereby preventing the reflux of the embolic agent.

[0028] It should be noted that this section is intended to provide a background or context for the implementation methods stated in the claims, and omits detailed descriptions of known functions and known components. At the same time, fixed and movable installations are determined according to actual application methods. To ensure the compatibility of the equipment, the operating methods adopted are consistent with the parameters of marketed equipment. The description here is not admitted to be prior art just because it is included in this section.

[0029] During implementation, follow these steps:

[0030] 1) First, inject the embolic agent so that it flows into the tube head 301 and flows through the lower tapered tip 306 toward the tube tip 304;

[0031] 2) Then, due to the small size of the pores and the upper opening of the lower tapered tip 306, the incoming embolic agent flows into the upper tapered tip 303 through the pores of the partition plate 305;

[0032] 3) Finally, the embolic agent diffused inside the upper conical tip 303 is concentrated and flows out of the tube head 301 through the gathering of the tube tip 304 .

[0033] In summary, the prostate artery embolization device for preventing embolic agent reflux provides a layer of anti-stick protection for the tube head 301 through the design of the anti-stick coating 302, so that the catheter can be easily detached after the injection of the embolic agent, thereby greatly reducing the risk of prostate artery embolization surgery and improving the safety of the surgery. At the same time, the design of the small openings of the upper conical tip 303 and the lower conical tip 306 relative to each other makes the embolic agent more concentrated when passing through the pores of the separator 305, thereby increasing the flow force through the pores of the separator 305 and increasing the resistance to embolic agent reflux, thereby allowing doctors to inject embolic agents with greater confidence and reducing the operational risks of prostate artery embolization surgery.

[0034] Moreover, the top opening of the upper conical tip tube 303 is larger, so that the embolic agent can diffuse out according to the inner wall structure of the upper conical tip tube 303 after flowing into the interior of the upper conical tip tube 303, thereby expanding the flow of the embolic agent flowing to the tube tip 304, further increasing the difficulty of the embolic agent backflow. At the same time, with the upper and lower symmetrical arrangement of the upper conical tip tube 303 and the lower conical tip tube 306, and the design of the tube tip 304 being embedded and connected to the interior of the upper conical tip tube 303, the sealing performance of the prevention component 3 is further improved, the stability during the injection operation is ensured, and the user's operation and use are facilitated, which solves the problem that the comparative file structure is relatively bloated and complicated, and the mesh structure has gaps, which is easy to be penetrated or has a large amount of residual liquid, affecting subsequent use.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0036] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing embolic agent reflux during prostate artery embolization, comprising a tube seat (1), characterized in that: A tube body structure (2) is installed on the top of the tube seat (1), and a prevention component (3) is connected to the top of the tube body structure (2); The prevention component (3) comprises a pipe head (301), an anti-stick coating (302), an upper conical tip tube (303), a pipe tip (304), a separator (305) and a lower conical tip tube (306); the pipe head (301) is installed at the top end of the pipe body structure (2); the outer surface of the pipe head (301) is coated with the anti-stick coating (302); the upper conical tip tube (303) is installed inside the pipe head (301); the interior of the upper conical tip tube (303) is connected to the pipe tip (304); the separator (305) is installed inside the pipe head (301); and the lower conical tip tube (306) is installed inside the pipe head (301).

2. The device for preventing embolic agent reflux during prostate artery embolization according to claim 1, characterized in that: The tube body structure (2) comprises a pushing section tube body (21) and a flexible section tube body (22); the pushing section tube body (21) is installed on the top of the tube seat (1); and the flexible section tube body (22) is installed on the top of the pushing section tube body (21).

3. The device for preventing embolic agent reflux during prostate artery embolization according to claim 2, characterized in that: The bottom of the tube head (301) is connected to the top of the flexible section tube body (22), the upper conical tip tube (303) and the lower conical tip tube (306) are symmetrically arranged up and down, and the anti-stick coating (302) is a hydrophilic coating.

4. The device for preventing embolic agent reflux during prostate artery embolization according to claim 1, characterized in that: A limiting hole is provided on the inner top wall of the tube head (301), and the top end of the tube tip (304) extends to the outside of the tube head (301) through the opening of the limiting hole.

5. The device for preventing embolic agent reflux during prostate artery embolization according to claim 1, characterized in that: The bottom of the tube tip (304) is snap-connected with the inner wall of the upper conical tip tube (303), and the size of the upper conical tip tube (303) is the same as that of the lower conical tip tube (306).

6. The device for preventing embolic agent reflux during prostate artery embolization according to claim 1, characterized in that: A fine hole is formed at the bottom of the separator (305), the opening at the bottom of the upper conical pointed tube (303) fits in with the opening at the top of the fine hole, and the opening at the top of the lower conical pointed tube (306) fits in with the opening at the bottom of the fine hole.

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