Vascular interventional stent release positioning device

Abstract

This utility model relates to the field of vascular interventional technology, specifically a vascular interventional stent release and positioning device, including a balloon with two guide tubes fixedly connected to it. A stent is slidably mounted on the balloon. The balloon is equipped with a positioning mechanism, which includes multiple passage slots, each with a protruding balloon skin fixedly connected to it. The advantages of this utility model are: the positioning mechanism can provide stable positioning for the stent throughout the entire process of the stent being delivered to the designated location in the blood vessel with the balloon, effectively preventing the stent from shifting due to interference from the vascular environment, ensuring that the stent always accurately follows the balloon. Moreover, the positioning release method is extremely convenient, requiring no additional operation steps. Positioning can be released simultaneously by the regular inflation of the balloon after the stent reaches the target position. This does not increase the surgical procedure and can quickly connect to the subsequent stent release stage, significantly improving the ease of operation and clinical applicability.

Description

Technical Field

[0001] This utility model relates to the field of vascular interventional technology, specifically to a vascular interventional stent release and positioning device. Background Technology

[0002] Vascular stent deployment is a core procedure in vascular interventional surgery. It involves using minimally invasive techniques to precisely deliver a stent, compressed and stored in a delivery device, to the lesion site (such as stenosis or blockage) in a blood vessel. Then, using specific techniques, the stent is deployed and fixed to the blood vessel wall, ultimately supporting the blood vessel and restoring blood flow.

[0003] In interventional vascular surgery, the stent needs to be connected to the balloon. The initial stability of the two mainly depends on the friction of the contact surface. The stent is tightly compressed and adheres to the surface of the balloon. Through friction, it is delivered into the blood vessel along with the balloon through the catheter. However, during the delivery to the lesion site, it is affected by various factors, such as changes in the curvature of the blood vessel, blood flow impact, and slight shaking when the catheter is pushed. This connection, which is supported only by friction, is prone to loosening, causing the stent to shift relative to the balloon. Once the shift occurs, the stent will not be able to accurately reach the preset lesion location with the balloon, which may delay the surgical process. Utility Model Content

[0004] The purpose of this invention is to provide a vascular interventional stent release and positioning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vascular interventional stent release and positioning device, comprising a balloon, two guide tubes fixedly connected to the balloon, and a stent slidably sleeved on the balloon; The balloon is provided with a positioning mechanism, which includes multiple passage slots, each of which is fixedly connected with a protruding balloon skin.

[0006] Preferably, all the guide tubes are in communication with the balloon.

[0007] Preferably, the passage slots are all formed on the outer wall of the balloon.

[0008] Preferably, the protruding sac skin, the passage groove, and the balloon are in a continuous state.

[0009] Preferably, the protruding cysts are slidably connected to the corresponding holes in the support.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the positioning mechanism can provide stable positioning for the stent throughout the entire process of the stent being delivered to the designated location in the blood vessel with the balloon, effectively preventing the stent from shifting due to interference from the vascular environment, and ensuring that the stent always accurately follows the balloon. Furthermore, the method of releasing the positioning is extremely convenient, requiring no additional steps. Once the stent reaches the target position, the positioning can be released simultaneously through the routine inflation of the balloon. This does not increase the surgical procedure and can quickly connect to the subsequent stent release process, significantly improving the ease of operation and clinical applicability. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the stent and balloon separation structure of this utility model; Figure 3 This is a schematic cross-sectional view of the balloon structure of this utility model.

[0012] In the diagram: 1. Balloon; 2. Guiding tube; 3. Stent; 4. Positioning mechanism; 41. Passage groove; 42. Protruding balloon skin. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-3 The present invention provides the following technical solution: Example 1: A vascular interventional stent release and positioning device includes a balloon 1, two guide tubes 2 fixedly connected to the balloon 1, a stent 3 slidably sleeved on the balloon 1, and the guide tubes 2 communicating with the balloon 1. During use, the guide tube 2 is inserted into the patient's blood vessel. The guide tube 2 will move the balloon 1 and stent 3 to the designated position inside the blood vessel. After the movement is completed, the external air intake tool is connected to the guide tube 2, and then air is pumped into the balloon 1 through the guide tube 2, causing the balloon 1 to expand. The expansion of the balloon 1 will expand the stent 3, thereby causing the stent 3 to expand the blood vessel to the designated size.

[0015] Example 2: The technical solution that differs from Example 1 in this example includes: the balloon 1 is provided with a positioning mechanism 4, the positioning mechanism 4 includes a plurality of passage grooves 41, and each passage groove 41 is fixedly connected with a protruding balloon skin 42; The passage grooves 41 are all opened on the outer wall of the balloon 1. The protruding balloon skin 42, the passage grooves 41 and the balloon 1 are in a through state. The protruding balloon skin 42 is slidably connected to the corresponding hole in the support 3. In use, the raised balloon 42 is connected to the inside of the hole on the stent 3 to prevent displacement between the balloon 1 and the stent 3. When the stent 3 and the balloon 1 are inserted into the designated position in the blood vessel, the balloon 1 expands and sends gas through the passage 41 into the inside of the raised balloon 42. As the balloon 1 expands, the outer wall of the balloon 1 will pull the raised balloon 42, thereby making the raised balloon 42 and the balloon 1 become a whole, so that the raised balloon 42 separates from the hole on the stent 3, completing the release of the stent 3. It also provides positioning for the stent 3 before release, making the operation very convenient.

[0016] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vascular interventional stent release and positioning device, comprising a balloon (1), two guide tubes (2) fixedly connected to the balloon (1), and a stent (3) slidably sleeved on the balloon (1). characterized in that The balloon (1) is provided with a positioning mechanism (4), which includes multiple passage slots (41), and each passage slot (41) is fixedly connected with a protruding balloon skin (42).

2. The vascular interventional stent release and positioning device according to claim 1, characterized in that: The guide tubes (2) are all in communication with the balloon (1).

3. The vascular interventional stent release and positioning device according to claim 1, characterized in that: The passageways (41) are all opened on the outer wall of the balloon (1).

4. The vascular interventional stent release and positioning device according to claim 1, characterized in that: The protruding sac skin (42), the passage groove (41), and the balloon (1) are in a connected state.

5. The vascular interventional stent release and positioning device according to claim 1, characterized in that: The raised sac skin (42) is slidably connected to the corresponding hole in the support (3).

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