Cardiovascular internal medicine clinical blood vessel stent

Abstract

The utility model discloses a cardiovascular internal medicine clinical blood vessel support relates to blood vessel support technical field, including blood vessel support ontology, the blood vessel support ontology is by a plurality of first helical frame and a plurality of second helical frame is composed, the blood vessel support ontology outside wall is close to the first arc contact frame that is provided with in the center place, and the first arc contact frame number is three, the blood vessel support ontology left and right sides are provided with the anti -displacement subassembly. The utility model discloses through the cooperation of the setting of the first arc contact frame of being connected two and the anti -displacement subassembly, makes the blood vessel support ontology support to produce both ends to expand big after opening, and the center place expands small, thereby makes the blood vessel support ontology can better be connected in the target blood vessel, thereby makes the blood vessel support ontology can better be connected in the target blood vessel, has improved the firmness of blood vessel support ontology and target blood vessel, thereby increases the stability of device, avoids the shift.

Description

Technical Field

[0001] This utility model relates to the field of vascular stent technology, specifically a vascular stent for clinical use in cardiovascular medicine. Background Technology

[0002] Vascular stents are implanted into the diseased segment of a blood vessel after balloon dilation and shaping. This supports the narrowed or occluded segment, reduces elastic recoil and remodeling, and maintains unobstructed blood flow. Some stents also help prevent restenosis. They are mainly classified into coronary stents, cerebral stents, renal artery stents, and aortic stents.

[0003] The existing patent announcement number CN221045075U discloses a vascular stent for clinical use in cardiovascular medicine. In this design, the unfixed end of the bent rod pushes against the inner wall of the blood vessel, causing the contact ball to compress the inner wall of the blood vessel. This causes the inner wall of the blood vessel in contact with the contact ball to be concave, and the concave part of the inner wall of the blood vessel adheres to the surface of the contact ball, thereby fixing the overall position of the vascular stent. The contact ball can also prevent damage to the inner wall of the blood vessel caused by the unfixed end of the bent rod being too sharp. When the vascular stent is placed in the diseased segment of the blood vessel, the contact sleeve will compress the inner wall of the blood vessel it contacts, thereby increasing the friction between the vascular stent and the inner wall of the blood vessel, making the vascular stent less likely to shift within the blood vessel.

[0004] However, during use, the blood flowing through the blood vessels exerts a certain impact on the contact ball, which can easily cause the contact ball to detach from the depression in the blood vessel and swing left and right with the flow of blood, thus easily damaging the blood vessel. Furthermore, excessive detachment of the contact ball can reduce the friction between the device and the blood vessel, causing displacement.

[0005] Based on this, a vascular stent for clinical use in cardiovascular medicine is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a vascular stent for clinical use in cardiovascular medicine to solve the problems in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] It includes a vascular stent body, which is composed of multiple first spiral frames and multiple second spiral frames;

[0009] The outer wall of the vascular stent body is provided with a first arc-shaped contact frame near the center, and there are three first arc-shaped contact frames. Anti-displacement components are provided on the left and right sides of the vascular stent body.

[0010] The anti-displacement component includes a second arc-shaped contact frame. The sidewall of the second arc-shaped contact frame is fixedly connected to the left and right sides of the vascular stent body. The second arc-shaped contact frame has an installation groove on the side away from the center of the vascular stent body. Multiple micro suction cups are fixedly installed inside the installation groove.

[0011] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0012] In one alternative: multiple first and second spiral frames form a grid-like cylindrical structure.

[0013] In one alternative: the first and second spiral frames are made of nickel-titanium superelastic alloy.

[0014] In one alternative: the left and right ends of the multiple first and second spiral frames are both beveled to increase the contact area of ​​the second arc-shaped contact frame, and the first and second spiral frames located at the connection point are fixedly connected to the side wall of the second arc-shaped contact frame through the beveled surfaces.

[0015] In one alternative: protective heads are fixedly installed at both ends of the first arc-shaped contact frame, and the protective heads have a semi-circular cross-section to protect the first arc-shaped contact frame from contact with blood vessels.

[0016] In one alternative: both the first arc-shaped contact frame and the outer wall of the protective head are provided with multiple grooves to increase the contact area between the first arc-shaped contact frame and the blood vessel.

[0017] In one alternative: a plurality of second arc-shaped contact frames are fixedly installed at the left and right ends of the vascular stent body, and the second arc-shaped contact frames on the left and right sides are arranged symmetrically to each other.

[0018] In one alternative: the end of the micro suction cup away from the vascular stent body extends to the outside of the mounting groove, and the distance between two connected first arc-shaped contact frames is smaller than the distance between two connected second arc-shaped contact frames.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention, through the coordinated arrangement of two connected first arc-shaped contact frames and an anti-displacement component, enables the vascular stent body to be better secured within the target blood vessel, thereby improving the firmness between the vascular stent body and the target blood vessel, increasing the stability of the device, and preventing displacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a side view of the first and second spiral frames of this utility model.

[0023] Figure 3 This is a side view of the anti-displacement component of this utility model.

[0024] Figure labeling: 1. Vascular stent body; 2. First spiral stent; 3. Second spiral stent; 4. First arc-shaped contact stent; 5. Second arc-shaped contact stent; 6. Mounting groove; 7. Miniature suction cup; 8. Protective head. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In one embodiment, such as Figures 1-3 As shown, it includes a vascular stent body 1, which is composed of multiple first spiral frames 2 and multiple second spiral frames 3;

[0027] A first arc-shaped contact frame 4 is provided on the outer side wall of the vascular stent body 1 near the center, and there are three first arc-shaped contact frames 4. Anti-displacement components are provided on the left and right sides of the vascular stent body 1.

[0028] The anti-displacement component includes a second arc-shaped contact frame 5. The side wall of the second arc-shaped contact frame 5 is fixedly connected to the left and right sides of the vascular stent body 1. The second arc-shaped contact frame 5 is provided with an installation groove 6 on the side away from the center of the vascular stent body 1. Multiple micro suction cups 7 are fixedly installed inside the installation groove 6.

[0029] In this embodiment, by setting multiple first arc-shaped contact frames 4 at the center of the outer side of the vascular stent body 1, the vascular stent body 1 expands significantly at both ends and less at the center after being supported. This allows the vascular stent body 1 to be better secured to the target blood vessel, improving the firmness between the vascular stent body 1 and the target blood vessel. Furthermore, the multiple first arc-shaped contact frames 4 will be recessed into the inner side of the blood vessel during the expansion process, generating greater friction. By setting second arc-shaped contact frames 5 on the left and right sides of the vascular stent body, and multiple micro suction cups 7 set on the inner side of the groove on the outer wall of the second arc-shaped contact frames 5, the vascular stent body is adsorbed onto the inner wall of the blood vessel by the micro suction cups 7 after being supported, thereby increasing the stability of the device and preventing displacement.

[0030] In one embodiment, such as Figure 1 and Figure 2 As shown, multiple first spirals 2 and second spirals 3 form a grid-like cylindrical structure, which facilitates the expansion of the device during use and ensures stable blood flow within the blood vessels.

[0031] In one embodiment, such as Figure 1 and Figure 2 As shown, the first spiral frame 2 and the second spiral frame 3 are made of nickel-titanium superelastic alloy. The titanium alloy material has unique advantages such as superelasticity, corrosion resistance, biocompatibility, shock absorption, high strength and long fatigue life, which improves the overall effect of the device.

[0032] In one embodiment, such as Figure 2 As shown, the first spiral frame 2 and the second spiral frame 3 have beveled ends on both sides to increase the contact area of ​​the second arc-shaped contact frame 5. The first spiral frame 2 and the second spiral frame 3 located at the connection point are fixedly connected to the side wall of the second arc-shaped contact frame 5 through the beveled ends. The beveled ends increase the firmness of the connection between the first spiral frame 2 and the second spiral frame 3 and the second arc-shaped contact frame 5.

[0033] In one embodiment, such as Figure 1 and Figure 2 As shown, protective heads 8 are fixedly installed at both ends of the first arc-shaped contact frame 4. The protective heads 8 have a semi-circular cross-section to protect the first arc-shaped contact frame 4 from contact with blood vessels. By installing the protective heads 8 with a semi-circular cross-section at both ends of the first arc-shaped contact frame 4, damage to blood vessels can be avoided.

[0034] In one embodiment, such as Figure 3 As shown, the outer walls of the first arc-shaped contact frame 4 and the protective head 8 are provided with multiple grooves to increase the contact area between the first arc-shaped contact frame 4 and the blood vessel. By increasing the contact area between the first arc-shaped contact frame 4 and the blood vessel through the grooves, the friction between the first arc-shaped contact frame 4 and the inner wall of the blood vessel is increased, thus preventing displacement.

[0035] In one embodiment, such as Figure 3 As shown, multiple second arc-shaped contact frames 5 are fixedly installed at the left and right ends of the vascular stent body 1, and the second arc-shaped contact frames 5 on the left and right sides are symmetrically arranged. Through the symmetrical arrangement of the second arc-shaped contact frames 5, the expansion range and shape of the two ends of the vascular stent body 1 are consistent when the device expands, thereby making the device more stable during use.

[0036] In one embodiment, such as Figure 3 As shown, the micro suction cups 7 extend to the outside of the mounting groove 6 at the end away from the vascular stent body 1. The distance between the two connected first arc-shaped contact frames 4 is smaller than the distance between the two connected second arc-shaped contact frames 5. Through the micro suction cups 7 extending to the outside of the mounting groove 6, the micro suction cups 7 are more easily adsorbed onto the inner wall surface of the blood vessel when the vascular stent body 1 expands. Moreover, the distance between the two connected first arc-shaped contact frames 4 is smaller than the distance between the two connected second arc-shaped contact frames 5, so that the vascular stent body 1 expands more at both ends and less at the center after being supported.

[0037] The above embodiment discloses a vascular stent for clinical use in cardiovascular medicine. The distance between two connected first arc-shaped contact frames 4 is smaller than the distance between two connected second arc-shaped contact frames 5, causing the stent body 1 to expand more at both ends and less at the center after being supported. This allows the stent body 1 to better engage with the target blood vessel, improving the stability of the stent body 1 and the target blood vessel. Furthermore, the multiple first arc-shaped contact frames 4 will be recessed into the inner side of the blood vessel during expansion, generating significant friction. The second arc-shaped contact frames 5, located on the left and right sides of the stent body, have grooves on their outer walls and multiple micro-suction cups 7 disposed on their inner sides. After the stent is supported, the micro-suction cups 7 adhere to the inner wall of the blood vessel, increasing the stability of the device and preventing displacement.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vascular stent for clinical use in cardiovascular medicine, comprising a vascular stent body (1), wherein the vascular stent body (1) is composed of multiple first spiral frames (2) and multiple second spiral frames (3); Its features are, The outer wall of the vascular stent body (1) is provided with a first arc-shaped contact frame (4) near the center, and there are three first arc-shaped contact frames (4). Anti-displacement components are provided on the left and right sides of the vascular stent body (1). The anti-displacement component includes a second arc-shaped contact frame (5). The side wall of the second arc-shaped contact frame (5) is fixedly connected to the left and right sides of the vascular stent body (1). The second arc-shaped contact frame (5) is provided with an installation groove (6) on the side away from the center of the vascular stent body (1). Multiple micro suction cups (7) are fixedly installed inside the installation groove (6).

2. The cardiovascular stent for clinical use according to claim 1, characterized in that, Multiple first spiral frames (2) and second spiral frames (3) form a grid-like cylindrical structure.

3. The cardiovascular stent for clinical use in cardiovascular medicine according to claim 1, characterized in that, The first spiral frame (2) and the second spiral frame (3) are made of nickel-titanium superelastic alloy.

4. The cardiovascular stent for clinical use according to claim 1, characterized in that, The first spiral frame (2) and the second spiral frame (3) are both provided with beveled ends to increase the contact area of ​​the second arc-shaped contact frame (5). The first spiral frame (2) and the second spiral frame (3) located at the connection point are fixedly connected to the side wall of the second arc-shaped contact frame (5) through the beveled ends.

5. A vascular stent for clinical use in cardiovascular medicine according to claim 1, characterized in that, Protective heads (8) are fixedly installed at both ends of the first arc-shaped contact frame (4). The protective heads (8) have a semi-circular cross section to protect the first arc-shaped contact frame (4) from contact with blood vessels.

6. A vascular stent for clinical use in cardiovascular medicine according to claim 4, characterized in that, The outer walls of the first arc-shaped contact frame (4) and the protective head (8) are provided with multiple grooves to increase the contact area between the first arc-shaped contact frame (4) and the blood vessel.

7. A vascular stent for clinical use in cardiovascular medicine according to claim 1, characterized in that, Multiple second arc-shaped contact frames (5) are fixedly installed at the left and right ends of the vascular stent body (1), and the second arc-shaped contact frames (5) on the left and right sides are symmetrically arranged.

8. A vascular stent for clinical use in cardiovascular medicine according to claim 1, characterized in that, The micro suction cup (7) extends to the outside of the mounting groove (6) at the end away from the vascular stent body (1), and the distance between the two connected first arc-shaped contact frames (4) is smaller than the distance between the two connected second arc-shaped contact frames (5).

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