Balloon catheter facilitating medicine discharging and medicine discharging assembly

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a balloon catheter convenient for drug delivery and a drug delivery assembly, the balloon catheter convenient for drug delivery comprises a balloon catheter medical device, and the drug delivery balloon catheter assembly is arranged in the balloon catheter medical device; the drug delivery balloon catheter assembly comprises a drug layer, an adhesive layer, a folding layer and a balloon catheter body, the adhesive layer is smeared in the drug layer, the folding layer is connected to the interior of the adhesive layer in a glued mode, the balloon catheter body is arranged in the folding layer, the drug layer and the folding layer form an adhesive structure through the adhesive layer, and the balloon catheter body is arranged in the adhesive layer. The folding layer is arranged in a wave shape, the adhesive layer is made of a fibrous protein biological glue material, and the adhesive layer is uniformly smeared on the surface of the folding layer; the folding layer and the balloon catheter body form a communicating structure, medicine can be conveniently put into the balloon catheter, the single-time medicine putting amount can be conveniently increased, and the loss amount of medicine conveying can be conveniently reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a balloon catheter and a medicine-releasing component that are convenient for releasing medicine. Background Art

[0002] The "drug-eluting balloon" is considered to be one of the representative treatment options of "intervention without implantation" and has become a "battlefield" for medical device companies. The drug-eluting balloon is only a carrier of the drug and a means of transport for delivering the drug to the lesion site. After arriving at the "destination", the balloon expands and fills, allowing the drug to fit tightly against the vascular endothelium. After the drug is released locally, the balloon is withdrawn from the body.

[0003] In Chinese Patent 202321747018.9, the utility model relates to a drug delivery and cutting balloon catheter, comprising a distal end, a balloon body, a push catheter and a catheter seat connected in sequence, and also comprising: at least one drug delivery blade, arranged on the outer wall of the balloon body; the drug delivery blade comprises a drug delivery cavity and a drug delivery hole connected to the drug delivery cavity, the drug delivery hole is located on the blade surface or blade of the drug delivery blade; the push catheter comprises a pressure expansion cavity and a drug injection cavity, the pressure expansion cavity and the drug injection cavity are not connected to each other, and the drug injection cavity is connected to the drug delivery cavity through a connecting tube. By arranging a drug delivery blade capable of drug delivery on the outer surface of the balloon body, the balloon body provided with the drug delivery blade has the effect of gathering force and cutting during the expansion process, and the drug delivery blade can be used to cut the atherosclerotic plaque in the blood vessel, which is convenient for drug delivery and effectively expands the blood vessel with stenotic lesions.

[0004] In the process of releasing medicine from the existing drug-releasing balloon catheter, since the medicine is attached to the surface of the balloon, during balloon delivery, the medicine on the balloon surface may partially fall off due to the friction between the balloon and the catheter, thereby affecting the amount of medicine released. At the same time, since the area of ​​the medicine attached to the balloon surface is small, the amount of medicine that can be carried is also small. When the amount of medicine is insufficient, a second release of medicine may be required, which not only increases the workload of medical staff, but also increases the harm to patients.

[0005] Therefore, in order to solve the above problems, a balloon catheter and a drug delivery component which are convenient for drug delivery are proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, the present invention solves the problem that during the drug releasing process of the existing drug releasing balloon catheter, since the medicine is attached to the surface of the balloon, during balloon delivery, the medicine on the balloon surface may partially fall off due to the friction between the balloon and the catheter, thereby affecting the amount of medicine released. At the same time, since the area of ​​the medicine attached to the balloon surface is small, the amount of medicine that can be carried is also small. When the amount of medicine is insufficient, a second drug release may be required, which not only increases the workload of medical staff, but also increases the problem of patient injury.

[0007] The technical solution adopted by the utility model to solve its technical problem is: the utility model is a balloon catheter that is easy to release medicine, including a balloon catheter medical device, and a balloon catheter assembly is arranged inside the balloon catheter medical device; the balloon catheter assembly includes a medicine layer, an adhesive layer, a folding layer, and a balloon catheter body, the inside of the medicine layer is coated with an adhesive layer, and the inside of the adhesive layer is glued and connected to the folding layer, and the inside of the folding layer is provided with a balloon catheter body.

[0008] Preferably, the drug layer forms an adhesive structure with the folding layer through an adhesive layer, and the folding layer is arranged in a wave shape.

[0009] Preferably, the adhesive layer is made of fibrin bio-adhesive material, and the adhesive layer is evenly applied on the surface of the folding layer.

[0010] Preferably, the folded layer and the balloon catheter body form a communicating structure, and the balloon catheter body and the balloon catheter medical device form a nested structure.

[0011] Preferably, the medicine release assembly is characterized in that it includes a medicine release device, which is installed on the side of the balloon catheter medical device, and the medicine release device includes a medicine release box, a catheter insertion hole, a first magnet, a box cover shaft, a box cover body, and a second magnet. The inside of the medicine release box is provided with a catheter insertion hole, and one side of the medicine release box is fixedly connected to the first magnet, and the other side of the medicine release box is installed with a box cover shaft, the top of the box cover shaft is movably connected to the box cover body, and the inner wall of the box cover body is fixedly connected to the second magnet.

[0012] Preferably, the insertion hole and the balloon catheter body form a nested structure, and a pair of the insertion holes are symmetrically arranged about the vertical center axis of the medicine box.

[0013] Preferably, the second magnet and the first magnet form a magnetic adsorption structure, and the second magnet forms a rotating structure through the box cover body and the box cover rotating shaft.

[0014] The utility model is beneficial in that:

[0015] 1. The drug layer forms an adhesive structure through the adhesive layer and the folding layer, and the folding layer is arranged in a wave shape. The adhesive layer is made of fibrin bio-adhesive material, and the adhesive layer is evenly applied to the surface of the folding layer. The folding layer and the balloon catheter body form a connecting structure, and the balloon catheter body and the balloon catheter medical device form a nested structure, which is convenient for releasing drugs into the balloon catheter body, facilitating the increase of the single drug release amount, and facilitating the reduction of the loss of drug delivery;

[0016] 2. The insertion hole and the balloon catheter body form a nested structure, and a pair of insertion holes are symmetrically arranged about the vertical center axis of the medicine box. The second magnet and the first magnet form a magnetic adsorption structure, and the second magnet forms a rotating structure through the box cover body and the box cover shaft, which is convenient for releasing medicine into the balloon catheter body and helps to ensure cleanliness during the drug release process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model as a whole viewed from the front;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the medicine-releasing balloon catheter assembly of the utility model in an inflated state;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the drug-releasing balloon catheter assembly of the utility model in a deflated state;

[0021] Figure 4 It is a schematic cross-sectional structure diagram of the medicine-releasing balloon catheter assembly of the utility model;

[0022] Figure 5 It is a schematic diagram of the opening structure of the medicine dispensing device of the utility model.

[0023] In the figure: 1. Balloon catheter medical device; 2. Drug-dispensing balloon catheter assembly; 201. Drug layer; 202. Adhesive layer; 203. Folding layer; 204. Balloon catheter body; 3. Drug-dispensing equipment; 301. Drug-dispensing box; 302. Insertion hole; 303. First magnet; 304. Box cover shaft; 305. Box cover body; 306. Second magnet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1As shown, a balloon catheter for drug delivery includes a balloon catheter medical device 1, and a balloon catheter assembly 2 for drug delivery is arranged inside the balloon catheter medical device 1.

[0027] See also Figures 2 to 4 As shown, a drug-releasing balloon catheter, a drug-releasing balloon catheter assembly 2, includes a drug layer 201, an adhesive layer 202, a folding layer 203, and a balloon catheter body 204. The drug layer 201 forms a bonding structure with the folding layer 203 through the adhesive layer 202, and the folding layer 203 is arranged in a wavy shape. The adhesive layer 202 is made of fibrin bio-glue material, and the adhesive layer 202 is evenly applied to the surface of the folding layer 203. The folding layer 203 and the balloon catheter body 204 form a connecting structure, and the balloon catheter body 204 and the balloon catheter medical device 1 form a nested structure. The adhesive layer 202 is made of fibrin bio-glue material. Fibrin bio-glue is a special functional adhesive for biomedicine, which is suitable for bonding skin, organs, nerves, muscles, blood vessels, and mucous membranes. It is convenient to adsorb the medicine on the surface of the folding layer 203. At the same time, the folding layer 203 is corrugated, so more medicine can be accumulated at the fold. The balloon catheter body 204 is inserted into the balloon catheter medical device 1 and transported to the appropriate position. When it reaches the appropriate position, the balloon catheter body 204 is inflated so that the medicine adheres to the appropriate position to achieve the purpose of releasing the medicine, which is convenient for releasing the medicine from the balloon catheter body 204, increasing the single release amount of medicine, and reducing the loss of medicine delivery.

[0028] See also Figure 5 As shown, the medicine placing assembly is characterized in that: it includes a medicine placing device 3, the medicine placing device 3 is installed on the side of the balloon catheter medical device 1, the medicine placing device 3, the insertion hole 302 and the balloon catheter body 204 form a nested structure, and the insertion hole 302 is symmetrically arranged with a pair of holes about the vertical center axis of the medicine placing box 301, the second magnet 306 and the first magnet 303 form a magnetic adsorption structure, and the second magnet 306 forms a rotating structure with the box cover body 305 and the box cover rotating shaft 304, and the box cover body 305 rotates around the box cover The shaft 304 rotates to open the box cover body 305, and then the balloon catheter body 204 is inserted into the insertion hole 302, and the folded layer 203 is inflated to expand the folded layer 203, and then the medicine is sprinkled into the medicine box 301, and the folded layer 203 is deflated at the same time, and the box cover body 305 is closed. Under the magnetic adsorption effect between the second magnet 306 and the first magnet 303, the closed state of the box cover body 305 is stable, which is convenient for releasing the medicine from the balloon catheter body 204 and helps to ensure cleanliness during the drug release process.

[0029] Working principle: First, rotate the box cover body 305 around the box cover shaft 304, open the box cover body 305, then insert the balloon catheter body 204 into the insertion hole 302, start the device, inflate the folding layer 203, make the folding layer 203 expand, then sprinkle medicine into the medicine box 301, and at the same time deflate the folding layer 203. The adhesive layer 202 is made of fibrin bio-adhesive material. Fibrin bio-adhesive belongs to the special functional adhesive of biomedicine, which is suitable for bonding skin, organs, nerves, muscles, blood vessels, mucous membranes, and is easy to put the medicine into the medicine box 301. It is adsorbed on the surface of the folding layer 203, and the folding layer 203 is corrugated, so that more medicine can be accumulated at the folding place. Then, the balloon catheter body 204 is taken out, and then the box cover body 305 is closed. Under the magnetic adsorption between the second magnet 306 and the first magnet 303, the closed state of the box cover body 305 is stable. Then, the balloon catheter body 204 is inserted into the balloon catheter medical device 1 and transported to the appropriate position. When it reaches the appropriate position, the balloon catheter body 204 is inflated so that the medicine adheres to the appropriate position to achieve the purpose of releasing the medicine.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A balloon catheter convenient for drug delivery, characterized in that: The invention comprises a balloon catheter medical device (1), wherein a medicine-releasing balloon catheter assembly (2) is arranged inside the balloon catheter medical device (1); The drug-releasing balloon catheter assembly (2) comprises a drug layer (201), an adhesive layer (202), a folding layer (203), and a balloon catheter body (204); the inside of the drug layer (201) is coated with the adhesive layer (202), the inside of the adhesive layer (202) is bonded to the folding layer (203), and the inside of the folding layer (203) is provided with the balloon catheter body (204).

2. The balloon catheter for convenient drug delivery according to claim 1, characterized in that: The drug layer (201) forms a bonding structure with the folding layer (203) through the adhesive layer (202), and the folding layer (203) is arranged in a wave shape.

3. The balloon catheter for convenient drug delivery according to claim 1, characterized in that: The adhesive layer (202) is made of fibrin bio-adhesive material, and the adhesive layer (202) is evenly applied to the surface of the folding layer (203).

4. The balloon catheter for convenient drug delivery according to claim 1, characterized in that: The folded layer (203) and the balloon catheter body (204) form a communicating structure, and the balloon catheter body (204) and the balloon catheter medical device (1) form a nested structure.

5. A medicine placing component, characterized in that: The invention comprises a medicine placing device (3), wherein the medicine placing device (3) is installed on the side of a balloon catheter medical device (1), and the medicine placing device (3) comprises a medicine placing box (301), a tube insertion hole (302), a first magnet (303), a box cover rotating shaft (304), a box cover body (305), and a second magnet (306). The inside of the medicine placing box (301) is provided with a tube insertion hole (302), and one side of the medicine placing box (301) is fixedly connected with the first magnet (303), and the other side of the medicine placing box (301) is installed with a box cover rotating shaft (304), the top of the box cover rotating shaft (304) is movably connected with the box cover body (305), and the inner wall of the box cover body (305) is fixedly connected with the second magnet (306).

6. The drug delivery assembly according to claim 5, characterized in that: The insertion hole (302) and the balloon catheter body (204) form a nested structure, and a pair of insertion holes (302) are symmetrically arranged about the vertical center axis of the medicine box (301).

7. The drug delivery assembly according to claim 5, characterized in that: The second magnet (306) and the first magnet (303) form a magnetic adsorption structure, and the second magnet (306) forms a rotating structure through the box cover body (305) and the box cover rotating shaft (304).

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