CN219185518U

CN219185518U - Drug-coated balloon dilation catheter

Info

Publication number: CN219185518U
Application number: CN202222672094.XU
Authority: CN
Inventors: 胡堃; 林广勤
Original assignee: Huarui Fujian Biotechnology Co ltd
Current assignee: Huarui Fujian Biotechnology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-06-16
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a drug coating balloon dilation catheter, which relates to the technical field of medical appliances and solves the technical problems that perfusion Kong Gongxie is arranged in the catheter in the current mode for flowing, but blood flowing through a perfusion hole cannot be controlled in the operation process, controllability is not achieved, and certain potential safety hazard exists; the device comprises a carrying saccule, wherein a first catheter is fixedly arranged in the carrying saccule, a drug coating layer is arranged on the surface of the carrying saccule, a catheter seat is fixedly arranged at one end of the first catheter, a blood inflow hole is formed in the middle of the top end of the first catheter, a sealing box is fixedly arranged in the middle of the top end of the inner wall of the first catheter, and air guide pipes are fixedly arranged on two sides of the bottom end of the sealing box. The utility model has the advantages of controlling the blood flow rate of the blood inflow hole and the blood outflow hole, facilitating the control of blood circulation, improving the controllability of the operation process and reducing certain potential safety hazard.

Description

Drug-coated balloon dilation catheter

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a drug coating balloon dilation catheter.

Background

Coronary heart disease is a common disease in cardiovascular medicine, and has become one of the diseases with the highest mortality rate in humans. The advent of "drug-coated balloon dilation catheters" has brought promise for addressing stent restenosis, so to speak, all together. Compared with the traditional common balloon, the drug-coated balloon dilation catheter effectively and continuously diffuses the drug into the vessel wall, and reduces the occurrence of restenosis in the stent.

According to the 'a drug coating saccule dilating catheter with self-filling function' provided by Chinese patent grant publication No. CN201821724718.5, the self-filling technology is adopted to prolong the dilating time to a certain extent, improve the drug release capability, improve the operation safety and reduce the pain caused by chest pain and other reasons in the operation of patients under the condition of continuously keeping the distal blood flow; however, perfusion Kong Gongxie is arranged in the catheter in the mode, but blood circulation through the perfusion hole cannot be controlled in the operation process, controllability is not achieved, and a certain potential safety hazard exists.

Disclosure of Invention

The utility model provides a drug-coated balloon dilation catheter, which solves the technical problems that perfusion Kong Gongxie is arranged in the catheter in the mode, but blood circulation through a perfusion hole cannot be controlled in the operation process, controllability is not achieved, and a certain potential safety hazard exists.

In order to solve the technical problems, the drug coating balloon dilation catheter provided by the utility model comprises a carrier balloon, wherein a first catheter is fixedly arranged in the carrier balloon, a drug coating layer is arranged on the surface of the carrier balloon, a catheter seat is fixedly arranged at one end of the first catheter, a blood inflow hole is formed in the middle of the top end of the first catheter, a sealing box is fixedly arranged in the middle of the top end of the inner wall of the first catheter, air guide pipes are fixedly arranged at two sides of the bottom end of the sealing box, the top ends of the two air guide pipes penetrate through the sealing box and are fixedly connected with an inflatable ball arranged at the top of the sealing box, the top ends of the two inflatable balls are fixedly connected with the inner wall of the first catheter, a blood outflow hole is formed in the middle of the bottom end of the sealing box, and an outflow pipe is fixedly arranged on the surface of the blood outflow hole.

Preferably, the bottom ends of the two air guide pipes are fixedly provided with air adding pipes.

Preferably, a separation plate is fixedly arranged at the bottom end of the inner wall of the first catheter, and a balloon airway is arranged at the bottom end of the separation plate.

Preferably, a second conduit is fixedly installed at one end of the first conduit.

Preferably, two pressurizing holes are formed in the bottom end of the inner wall of the balloon airway, and the two pressurizing holes are communicated with the object carrying balloon.

Compared with the related art, the drug-coated balloon dilation catheter provided by the utility model has the following beneficial effects: the utility model provides a drug coating balloon dilation catheter, which is characterized in that an air adding pipe arranged in a first catheter is used for carrying out inflation pressurization by matching with two air guide pipes through the air adding pipe, so that two inflatable balls acting on the top ends of the two air guide pipes are inflated, the inflation volume between the two inflatable balls is changed, the inflation degrees of the two inflatable balls are different, the blood flowing into holes and the blood flowing out holes are controlled, the blood circulation is conveniently controlled, the controllability of the operation process is improved, and a certain potential safety hazard is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is an enlarged schematic view of the structure of the present utility model a.

Reference numerals in the drawings: 1. a cargo balloon; 2. a first conduit; 3. a catheter holder; 4. a drug coating layer; 5. blood inflow holes; 6. a seal box; 7. an air duct; 8. inflating the balloon; 9. a gas adding pipe; 10. an outflow tube; 11. a partition plate; 12. balloon airway; 13. a blood outflow hole; 14. a pressurizing hole; 15. a second conduit.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a drug coating balloon dilation catheter comprises a carrier balloon 1, wherein a first catheter 2 is fixedly installed inside the carrier balloon 1, a drug coating layer 4 is arranged on the surface of the carrier balloon 1, a catheter seat 3 is fixedly installed at one end of the first catheter 2, a blood inflow hole 5 is formed in the middle of the top end of the first catheter 2, a sealing box 6 is fixedly installed in the middle of the top end of the inner wall of the first catheter 2, air guide pipes 7 are fixedly installed at two sides of the bottom end of the sealing box 6, the top ends of the two air guide pipes 7 penetrate through the sealing box 6 and are fixedly connected with an air filling ball 8 arranged at the top of the sealing box 6, the top ends of the two air filling balls 8 are fixedly connected with the inner wall of the first catheter 2, a blood outflow hole 13 is formed in the middle of the bottom end of the sealing box 6, and an outflow pipe 10 is fixedly installed on the surface of the blood outflow hole 13.

Referring to fig. 2 and 3, the bottom ends of the two air guide pipes 7 are fixedly provided with air adding pipes 9, so that the two air charging balls 8 can be pressurized and inflated conveniently.

Referring to fig. 3, a partition plate 11 is fixedly installed at the bottom end of the inner wall of the first catheter 2, and a balloon air passage 12 is provided at the bottom end of the partition plate 11 for providing an air inflation passage for the carrying balloon 1 through the balloon air passage 12.

Referring to fig. 1, a second catheter 15 is fixedly installed at one end of the first catheter 2 for outflow of blood.

Referring to fig. 2, two pressurizing holes 14 are provided at the bottom end of the inner wall of the balloon air passage 12, and the two pressurizing holes 14 are both communicated with the object carrying balloon 1 for pressurizing and inflating the object carrying balloon 1.

In summary, in the present utility model, the drug coated balloon dilation catheter is firstly placed in the first catheter 2 and the second catheter 15 to insert the drug coated balloon 1 and the drug coated layer 4 coated on the surface of the drug coated balloon 1 into a patient's blood vessel, the air supply is performed in the drug coated balloon 1 through the balloon air passage 12 and the pressurizing hole 14, the drug coated layer 4 on the outer surface of the drug coated balloon 1 is coated on the inner wall of the blood vessel, so as to realize the perfusion of the drug, then the blood flows into the first catheter 2 through the blood inflow hole 5, then the gas filling pipe 9 is inflated, the two gas filling balls 8 acting on the top ends of the two gas filling pipes 7 are inflated by matching with the two gas filling pipes 7, the inflation volumes between the two gas filling balls 8 are changed, the inflation degree of the two gas filling balls 8 is different, the blood inflow hole 5 and the blood outflow hole 13 are controlled, the controllability of the operation process is facilitated, a certain potential safety hazard is reduced, and finally the patient is subjected to the next operation step.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A drug-coated balloon dilation catheter comprising a carrier balloon (1), characterized in that: the utility model discloses a blood flow control device for the medical device, including a sealed box (6), a sealed box (6) and a filling balloon (8) fixed connection, wherein the inside fixed mounting of carrying sacculus (1) has first pipe (2), the surface of carrying sacculus (1) is equipped with medicine coating (4), the one end fixed mounting of first pipe (2) has pipe seat (3), blood inflow hole (5) have been seted up at the middle part on first pipe (2) top, the middle part fixed mounting on first pipe (2) inner wall top has sealed box (6), the both sides of sealed box (6) bottom all fixed mounting have air duct (7), two the top of air duct (7) all passes sealed box (6) and with the balloon (8) fixed connection that the sealed box (6) top set up, two the top of balloon (8) and the inner wall fixed connection of first pipe (2), blood outflow hole (13) have been seted up at the middle part on sealed box (6) bottom, the fixed surface mounting of blood outflow hole (13) has outlet tube (10).

2. A drug coated balloon dilation catheter according to claim 1 wherein the bottom ends of two of the airways (7) are fixedly fitted with a gas filler tube (9).

3. A drug coated balloon dilation catheter according to claim 1, wherein a separation plate (11) is fixedly arranged at the bottom end of the inner wall of the first catheter (2), and a balloon airway (12) is arranged at the bottom end of the separation plate (11).

4. A drug coated balloon dilation catheter according to claim 1 wherein a second catheter (15) is fixedly mounted to one end of the first catheter (2).

5. A drug-coated balloon dilation catheter according to claim 3, characterized in that two pressurizing holes (14) are provided at the bottom end of the inner wall of the balloon airway (12), both pressurizing holes (14) being in communication with the carrier balloon (1).