A catheter supported tube sheath

Abstract

The utility model belongs to the field of medical devices, especially a pipe sheath of catheter support, in view of the existing stent implantation is easy to influence the patient's daily physiological chewing activity, and the branch catheter and sublingual gland branch catheter are easy to block, the present scheme is proposed, it includes the stent catheter for implantation, the stent catheter is set up and is in the net structure with the mesh on, guide mechanism, guide mechanism sets up in the stent catheter for guiding the stent catheter to enter the salivary gland catheter, through the mesh on the stent catheter, the stent catheter is in the net structure, is convenient for placing into the salivary gland catheter as the support, and the net structure is not blocked in branch catheter and sublingual gland branch catheter, and the stent catheter can be conveniently guided into and expanded through the guide mechanism.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a catheter support sheath. Background Technology

[0002] Balloon dilation is performed by inserting a balloon catheter into a narrowed or blocked blood vessel, airway, or other tube, and then inflating or injecting contrast agent to dilate the balloon, thereby restoring the patency of the lumen. Due to ductal stenosis, a stent needs to be implanted for support after balloon dilation.

[0003] Existing support systems have the following shortcomings in use:

[0004] Existing stents, once implanted, can easily affect patients' daily physiological chewing activities and can also easily block branch ducts and sublingual gland branch ducts. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the potential impact on patients' daily physiological chewing activities after stent implantation, as well as the tendency to obstruct branch ducts and sublingual gland branch ducts. Therefore, this invention proposes a duct support sheath.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A catheter-supported sheath includes a stent catheter for implantation, the stent catheter having perforations and a mesh structure;

[0008] The guiding mechanism is located inside the stent catheter and is used to guide the stent catheter into the salivary gland duct.

[0009] In one possible design, the guiding mechanism includes a sheath core for guiding a stent catheter into a salivary gland duct, the stent catheter being fitted onto the sheath core.

[0010] In one possible design, one end of the sheath core has anti-slip textures to increase friction on the user's hands for slip prevention.

[0011] In one possible design, the stent catheter has fixing rings on both sides of its end for suturing and securing it to the catheter opening during surgery to prevent it from falling off.

[0012] In one possible design, one end of the sheath core is tapered.

[0013] In one possible design, the fixing ring and the support catheter are an integral structure.

[0014] In this application, a sheath core is inserted into the stent catheter, and the stent catheter is slowly and accurately guided into the patient's salivary gland duct. The fixing rings on both sides of the stent catheter end can help to suture and fix it to the duct opening during the operation to prevent it from falling off. The sheath core can be easily guided into and expanded. After the sheath core is removed, a mesh stent catheter remains. The mesh openings on the stent catheter make the stent catheter mesh-like, which is easy to insert into the salivary gland duct as support. The advantages of the mesh are that it is relatively elastic and has strong support. After implantation, it does not affect the patient's daily physiological chewing activities. The mesh structure does not block the branch ducts and sublingual gland branch ducts.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this utility model, the catheter support sheath is made into a mesh shape by opening mesh holes on the stent catheter, which makes it easy to insert into the salivary gland duct as a support. The advantages of the mesh are that it is relatively elastic and has strong support. After implantation, it does not affect the patient's daily physiological chewing activities. The mesh structure does not block the branch ducts and sublingual gland branch ducts.

[0017] In this utility model, the catheter support sheath, through a guiding mechanism and a set sheath core, can easily guide the stent catheter into and expand. After the sheath core is removed, the mesh stent catheter remains.

[0018] In this invention, the stent catheter is made into a mesh shape by opening mesh holes on the stent catheter, which facilitates its insertion into the salivary gland duct as a support. The advantages of the mesh are that it is relatively elastic and has strong support. After implantation, it does not affect the patient's daily physiological chewing activities. The mesh structure does not block the branch ducts and sublingual gland branch ducts. The stent catheter can be easily guided into and expanded by the guiding mechanism. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of a catheter-supported sheath proposed in this utility model.

[0020] Figure 2 This is a top view of a catheter-supported sheath proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of a catheter support sheath structure proposed in this utility model.

[0022] Figure 4 This is a side view schematic diagram of a catheter support sheath according to the present invention.

[0023] In the diagram: 1. Stent catheter; 2. Sheath core; 3. Anti-slip texture; 4. Mesh; 5. Fixing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figure 1-4 A catheter-supported sheath, used in the field of medical devices, includes a stent catheter 1, which is the main component. The stent catheter 1 is made of a special material, the specific material of which can be selected according to actual needs, possessing good biocompatibility and sufficient strength. The stent catheter 1 has mesh openings 4 and a mesh structure, a design that not only helps increase the flexibility of the stent catheter 1.

[0027] A guiding mechanism, housed within the stent catheter 1, guides the stent catheter 1 accurately into the salivary gland duct. The guiding mechanism includes a sheath core 2, on which the stent catheter 1 is fitted. The design of the sheath core 2 allows the stent catheter 1 to smoothly enter the target location while minimizing damage to surrounding tissues.

[0028] Example 2

[0029] refer to Figure 1-4 Improvements based on Example 1:

[0030] To improve safety and operability during surgery, anti-slip grooves 3 are created at one end of the sheath core 2. The anti-slip grooves 3 increase the friction between the operator's hand and the sheath core 2, preventing operational errors caused by hand slippage during surgery.

[0031] To ensure the stability of the stent catheter 1 during the procedure, fixation rings 5 ​​are fixedly installed on both sides of the end of the stent catheter 1. The fixation rings 5 ​​are made of the same material as the stent catheter 1 and are integrated with it. During the procedure, the surgeon sutures the fixation rings 5 ​​to the catheter opening, thereby preventing the stent catheter 1 from falling out or shifting.

[0032] To further improve the guiding effect of the guiding mechanism and the success rate of the surgery, one end of the sheath core 2 is designed in a conical shape. The conical design makes it easier for the sheath core 2 to enter the salivary gland duct and reduces damage to the duct.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A catheter-supporting sheath, characterized in that, Includes a stent catheter (1) for implantation, wherein the stent catheter (1) has a mesh (4) and a mesh structure; A guiding mechanism is installed inside the stent catheter (1) to guide the stent catheter (1) into the salivary gland duct.

2. The catheter support sheath according to claim 1, characterized in that, The guiding mechanism includes a sheath (2) for guiding the stent catheter (1) into the salivary gland duct, the stent catheter (1) being fitted onto the sheath (2).

3. The catheter support sheath according to claim 2, characterized in that, One end of the sheath core (2) is provided with anti-slip texture (3) to increase the friction of the hands of personnel and prevent slipping.

4. The catheter-supporting sheath according to claim 1, characterized in that, The stent catheter (1) is fixedly provided with two fixing rings (5) on both ends of the stent catheter (1) for suturing and fixing to the catheter opening during surgery to prevent it from falling off.

5. A catheter-supporting sheath according to claim 2, characterized in that, One end of the sheath core (2) is tapered.

6. A catheter-supported sheath according to claim 4, characterized in that, The fixing ring (5) and the stent catheter (1) are an integral structure.

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