Balloon catheter convenient to position

Abstract

The utility model discloses a balloon catheter convenient to position, which comprises a catheter body, one side of the catheter body is connected with a balloon, one end of the catheter body is communicated with a connecting tube, one end of the connecting tube is communicated with a guide wire tube, one end of the guide wire tube is communicated with a limiting tube, and a screw rod is inserted on the surface of the limiting tube. One side of the guide wire tube is communicated with an infusion tube, one end of the infusion tube is communicated with an inclined tube, one side of the inclined tube is communicated with a threaded tube, the surface of the inclined tube is communicated with a valve, the middle of the balloon is slightly thin, the two ends of the balloon are thick, and the balloon is in a shuttle shape after being unfolded. The balloon catheter convenient to position has the advantages that the limiting tube and the threaded rod are arranged and are made of plastic materials, the threaded rod is tightened after the balloon reaches a preset position, the threaded rod drives the clamping block to move to extrude the balloon, the position of the balloon is fixed, displacement of the balloon is avoided, and the balloon catheter is convenient for medical staff to use.

Description

Technical Field

[0001] This utility model relates to the field of balloon catheter technology, and in particular to a balloon catheter that is easy to position. Background Technology

[0002] A balloon catheter is a soft catheter with an inflatable balloon at its tip. During catheterization, it is used to widen narrow openings or passages within the body, place a deflated balloon, inflate it again to perform the necessary procedures, and then deflate it again for removal. Some common uses include: angioplasty or balloon diaphragmatic stoma, cardiac catheterization (cardiac catheterization), salpingoplasty via uterine catheterization, and pyeloplasty using a removable inflatable balloon stent, positioned via a cystoscopic transvesical approach. Balloon catheters used in angioplasty can be either over-the-knee (OTW) or rapid exchange (Rx). Rx catheters now account for approximately 90% of interventional procedures. While OTW catheters may still be useful in highly tortuous vascular access, they sacrifice deflation time and maneuverability. When a balloon catheter is used to compress plaque within a blocked coronary artery, it is referred to as conventional old-style balloon angioplasty or POBA. Balloon catheters are also used for stent deployment during angioplasty. The balloon catheter is provided to the catheterization lab with a stent pre-installed on the balloon. When the specialist inflates the balloon, it expands the stent. When the cardiologist then deflates the balloon, the stent remains in the artery, and the balloon catheter can be removed. The stent used in conjunction with a balloon catheter is called a balloon-expandable stent, as opposed to a self-expanding stent typically made of nitinol.

[0003] Patent document N118662762A discloses a balloon catheter, including a balloon segment and a non-balloon segment. The balloon segment consists only of an inner tube, while the non-balloon segment includes an inner tube and an outer tube, with a first space between the inner and outer tubes. The balloon segment includes a first balloon segment, which is surrounded by a first balloon, which is a compliant balloon. The side of the first balloon near the distal end of the balloon catheter is sealed to both the inner and outer tubes, while the side of the first balloon near the proximal end of the balloon catheter is sealed to the outer tube but has a gap with the inner tube. The proximal end of the balloon catheter is provided with a balloon expansion port and an infusion port. The infusion port is connected to the interior of the inner tube, and the balloon expansion port is connected to the first space at the proximal end of the balloon catheter. This allows the size and shape of the compliant balloon to be changed when inflated or inflated through the balloon expansion port, facilitating more reliable occlusion of the Marshall vein and achieving compatibility with vascular structures of different sizes.

[0004] While the aforementioned application facilitates more reliable occlusion of the Marshall vein and achieves compatibility with different vascular structures, it is inconvenient to position the balloon during actual use. This can lead to balloon displacement during subsequent surgical procedures, causing inconvenience to medical staff and increasing the risks associated with catheter use. Utility Model Content

[0005] This utility model discloses a balloon catheter that is easy to position, aiming to solve the technical problem of positioning the balloon during use and avoiding balloon displacement.

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

[0007] A balloon catheter for easy positioning includes a catheter body, a balloon connected to one side of the catheter body, a connecting tube connected to one end of the catheter body, a guide wire connected to one end of the connecting tube, a limit tube connected to one end of the guide wire, a screw inserted into the surface of the limit tube, and a clamping block rotatably connected to one end of the screw inside the limit tube via a bearing.

[0008] The balloon is secured by a limiting tube and a screw made of plastic. Once the balloon reaches the predetermined position, the screw is tightened, which causes the clamping block to move and compress the balloon, thus fixing the balloon in place and preventing it from shifting, making it convenient for medical staff to use.

[0009] One side of the guide wire is connected to an injection tube, one end of the injection tube is connected to an inclined tube, one side of the inclined tube is connected to a threaded tube, and a valve is connected to the surface of the inclined tube.

[0010] The inclined and threaded tubes facilitate the connection of the catheter body during use, thereby simplifying the perfusion process and improving the ease of operation for medical staff.

[0011] In a preferred embodiment, the balloon is slightly thinner in the middle and thicker at both ends, and its shape is spindle-shaped after expansion.

[0012] By designing the balloon to be slightly thinner in the middle and thicker at both ends, it achieves a spindle shape after expansion, facilitating subsequent positioning and making it easier for medical staff to operate.

[0013] In a preferred embodiment, a wrench is fixedly mounted on the top of the screw, the surface of the wrench is provided with anti-slip texture, and a sealing ring is fixedly mounted on one end of the limiting tube.

[0014] The included wrench facilitates operation by medical staff, while the sealing ring protects the catheter and also makes connection easier.

[0015] In a preferred embodiment, a graduated groove is formed on the surface of the catheter body, and graduated lines are formed inside the graduated groove, with the graduated lines starting from the front end of the catheter body.

[0016] The set scale grooves and scale lines make it easy to observe the length of the tube entering during use.

[0017] In a preferred embodiment, an anti-slip strip is fixedly installed on the surface of the inclined tube, and the surface of the anti-slip strip has anti-slip texture.

[0018] The anti-slip strips increase the protection of the inclined tube during use and also make it easier for medical staff to handle.

[0019] In a preferred embodiment, a handle is fixedly installed on the surface of the connecting tube, and rubber strips are fixedly installed on both sides of the handle. One side of the rubber strips has anti-slip texture, and one side of the handle is fixedly connected to one side of the guide wire tube and the injection tube, respectively.

[0020] The design incorporates handles and rubber strips to facilitate handheld operation by medical staff.

[0021] In a preferred embodiment, an arc-shaped plate is fixedly installed on one side of the infusion tube, and one end of the arc-shaped plate is fixedly connected to one side of the guide wire tube.

[0022] The curved plate facilitates the connection between the infusion tube and the guide wire tube, increasing the strength between them.

[0023] As can be seen from the above, the balloon catheter for easy positioning provided by this utility model has the following technical effects.

[0024] Firstly, the balloon is fixed in place by means of a limiting tube and a screw made of plastic. After the balloon reaches the predetermined position, the screw is tightened, which causes the screw to move the clamping block to compress it, thereby fixing the balloon in place and preventing it from shifting, making it convenient for medical staff to use.

[0025] Secondly, the inclined tube and threaded tube facilitate the connection of the catheter body during use, which in turn facilitates the perfusion operation and improves the ease of operation for medical staff. Attached Figure Description

[0026] Figure 1 This is a first-view three-dimensional structural diagram of a balloon catheter that is easy to position according to this utility model.

[0027] Figure 2 This is a second-view three-dimensional structural diagram of a balloon catheter that is easy to position according to this utility model.

[0028] Figure 3This is a three-dimensional cross-sectional view of the balloon structure of a balloon catheter that is easy to position according to this utility model.

[0029] Figure 4 This invention provides a balloon catheter that is easy to position. Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0030] Figure 5 This invention provides a balloon catheter that is easy to position. Figure 2 Enlarged schematic diagram of the structure at point B.

[0031] In the attached diagram: 1. Catheter body; 2. Balloon; 3. Connecting tube; 4. Guide wire tube; 5. Limiting tube; 6. Screw; 7. Clamp; 8. Infusion tube; 9. Inclined tube; 10. Threaded tube; 11. Valve; 12. Wrench; 13. Anti-slip strip; 14. Handle; 15. Rubber strip; 16. Sealing ring; 17. Arc-shaped plate. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Reference Figures 1-5 A conveniently positioned balloon catheter includes a catheter body 1, a balloon 2 connected to one side of the catheter body 1, a connecting tube 3 connected to one end of the catheter body 1, a guidewire tube 4 connected to one end of the connecting tube 3, and a limiting tube 5 connected to one end of the guidewire tube 4. A screw 6 is inserted into the surface of the limiting tube 5, and a clamping block 7 is rotatably connected to the end of the screw 6 inside the limiting tube 5 via a bearing. The limiting tube 5 and the screw 6 are made of plastic. After the balloon 2 reaches the predetermined position, the screw 6 is tightened, thereby causing the screw 6 to drive the clamping block 7 to move and compress it, thus fixing the balloon 2 in position and preventing it from shifting, making it convenient for medical personnel to use. The surface of the catheter body 1 has a graduated groove, and the inside of the graduated groove has a graduated line starting from the front end of the catheter body 1. The graduated groove and graduated line make it easy to observe the insertion length of the catheter during use.

[0035] One side of the guidewire 4 is connected to the infusion tube 8, one end of the infusion tube 8 is connected to the inclined tube 9, one side of the inclined tube 9 is connected to the threaded tube 10, and the surface of the inclined tube 9 is connected to the valve 11. The inclined tube 9 and the threaded tube 10 facilitate the connection of the catheter body 1 during use, thereby facilitating the infusion operation and improving the ease of operation for medical staff. The surface of the inclined tube 9 is fixedly installed with an anti-slip strip 13, which has anti-slip texture. The anti-slip strip 13 increases the protection of the inclined tube 9 during use and also facilitates hand operation by medical staff.

[0036] Reference Figure 3 In a preferred embodiment, the balloon 2 is slightly thinner in the middle and thicker at both ends, and its shape is spindle-shaped after being expanded. The balloon 2 is designed to be slightly thinner in the middle and thicker at both ends, so that it can be easily expanded into a spindle shape, which facilitates subsequent positioning and also makes it easier for medical staff to operate.

[0037] Reference Figure 2 In a preferred embodiment, a wrench 12 is fixedly installed on the top of the screw 6. The surface of the wrench 12 is provided with anti-slip texture. A sealing ring 16 is fixedly installed on one end of the limiting tube 5. The wrench 12 is designed to facilitate operation by medical staff. At the same time, the sealing ring 16 provides protection for the catheter and also facilitates its connection.

[0038] Reference Figure 5 In a preferred embodiment, a handle 14 is fixedly installed on the surface of the connecting tube 3. Rubber strips 15 are fixedly installed on both sides of the handle 14. One side of the rubber strips 15 has anti-slip texture. One side of the handle 14 is fixedly connected to one side of the guide wire tube 4 and the infusion tube 8, respectively. The handle 14 and rubber strips 15 are designed to make it easy for staff to hold and operate. An arc-shaped piece 17 is fixedly installed on one side of the infusion tube 8. One end of the arc-shaped piece 17 is fixedly connected to one side of the guide wire tube 4. The arc-shaped piece 17 facilitates the connection between the infusion tube 8 and the guide wire tube 4 and increases the firmness between them.

[0039] Working principle: When it is needed to position the balloon 2, after the balloon 2 reaches the predetermined position, tighten the screw 6, so that the screw 6 drives the clamp 7 to move and squeeze it, thereby fixing the balloon 2 in position. When it is needed to connect the catheter, it is connected through the threaded tube 10.

[0040] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A balloon catheter for easy positioning comprising a catheter body (1), characterized in that, One side of the catheter body (1) is connected with a balloon (2), one end of the catheter body (1) is communicated with a connecting pipe (3), one end of the connecting pipe (3) is communicated with a guide wire pipe (4), one end of the guide wire pipe (4) is communicated with a limiting pipe (5), a screw rod (6) is inserted on the surface of the limiting pipe (5), one end of the screw rod (6) located in the limiting pipe (5) is rotatably connected with a clamping block (7) through a bearing; One side of the guide wire pipe (4) is communicated with a perfusion pipe (8), one end of the perfusion pipe (8) is communicated with an inclined pipe (9), one side of the inclined pipe (9) is communicated with a threaded pipe (10), and the surface of the inclined pipe (9) is communicated with a valve (11).

2. The easily positioned balloon catheter of claim 1, wherein, The balloon (2) is slightly thinner in the middle and thicker at both ends, and the shape after expansion is shuttle-shaped.

3. The easily positioned balloon catheter of claim 1, wherein, The top of the screw rod (6) is fixedly installed with a wrench (12), the surface of the wrench (12) is provided with anti-skid lines, and one end of the limiting pipe (5) is fixedly installed with a sealing ring (16).

4. The easily positioned balloon catheter of claim 1, wherein, The surface of the catheter body (1) is provided with a scale groove, the inside of the scale groove is provided with a scale line, and the scale line starts from the front end of the catheter body (1).

5. The easily positioned balloon catheter of claim 1, wherein, The surface of the inclined pipe (9) is fixedly installed with an anti-skid strip (13), and the surface of the anti-skid strip (13) is provided with anti-skid lines.

6. The easily positioned balloon catheter of claim 1, wherein, The surface of the connecting pipe (3) is fixedly installed with a handle (14), the two sides of the handle (14) are fixedly installed with rubber strips (15), one side of the rubber strip (15) is provided with anti-skid lines, and one side of the handle (14) is fixedly connected with one side of the guide wire pipe (4) and the perfusion pipe (8) respectively.

7. The easily positioned balloon catheter of claim 1, wherein, One side of the perfusion pipe (8) is fixedly installed with an arc-shaped sheet (17), and one end of the arc-shaped sheet (17) is fixedly connected with one side of the guide wire pipe (4).

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