Shock wave balloon based on liquid electricity

Abstract

The utility model discloses a shock wave balloon based on liquid electricity, and belongs to the technical field of medical instruments. A shock wave balloon based on liquid electricity comprises a sheathing canal, a connecting tube is arranged at one end of the sheathing canal, a flushing head is installed at the end, away from the sheathing canal, of the connecting tube, a balloon body is arranged between the flushing head and the sheathing canal, and a guide wire attached to the connecting tube is arranged on the inner side of the sheathing canal; the flushing head, the flushing hole, the input channel and the conveying pipe are matched to form a flushing mechanism, the flushing mechanism can make the surgical field clear in vascular interventional therapy and help to remove impurities or residues in the blood vessel when necessary, and after the shock wave balloon treats calcified plaques, the flushing mechanism can be used for flushing the blood vessel, so that the operation difficulty is reduced. If more impurities or residues exist on the inner side wall of the blood vessel, the arranged flushing mechanism can be used for flushing, and after flushing, the impurities or residues are sucked through flushing holes, so that the blood vessel is further cleaned, and the risk of complications is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a shock wave balloon based on liquid electricity. Background Art

[0002] Shock wave balloon technology uses acoustic pressure waves to break up calcified plaques in blood vessels, thereby improving vascular compliance and patency. After treatment, the calcified plaques on the inner wall of the blood vessel will be broken into smaller fragments, which may gradually be discharged from the body with the blood flow or absorbed by the blood vessel wall. In addition to calcified plaques, there may be other impurities on the inner wall of the blood vessel, such as thrombus fragments, lipid deposits, etc.

[0003] After treating calcified plaques, existing shock wave balloons are unable to treat other impurities on the inner wall of the blood vessel. If other impurities on the inner wall of the blood vessel (such as thrombus fragments and lipid deposits) are not effectively removed, the risk of restenosis may increase. These impurities may serve as the basis for new lesions, promoting the proliferation of the vascular endothelium and the occurrence of restenosis. At the same time, when treating calcified plaques, if other impurities on the inner wall of the blood vessel are impacted and fall off, they may flow with the blood to distal blood vessels, causing embolism or blockage of the distal blood vessels, thereby causing related complications. Summary of the Invention

[0004] The purpose of the utility model is to provide a shock wave balloon based on liquid electricity in order to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a hydraulic-electric shock wave balloon, including a sheath tube, a connecting tube is provided at one end of the sheath tube, a flushing head is installed at the end of the connecting tube away from the sheath tube, a balloon is provided between the flushing head and the sheath tube, a guide wire is provided on the inner side of the sheath tube and is fitted with the connecting tube, a discharge unit connected to the guide wire is installed on the outer side of the connecting tube, and the discharge units are divided into several pairs, a catheter seat is provided at the end of the sheath tube away from the connecting tube, and several flushing holes are opened on the side wall of the flushing head.

[0006] By adopting the above technical solution, the flushing mechanism can be used for flushing. After flushing, impurities or residues are absorbed through the flushing holes, thereby further cleaning the blood vessels and reducing the risk of complications.

[0007] Optionally, the sheath is provided with an input channel, an injection channel and a wire-travel channel, the input channel, the injection channel and the wire-travel channel are arranged in parallel, and the diameter of the input channel is twice the diameter of the injection channel and the wire-travel channel.

[0008] By adopting the above technical solution, the separation and independence of functions such as flushing, injection and guidewire transmission are achieved, thereby improving the operating efficiency and stability of the device.

[0009] Optionally, the connecting pipe is connected to the input channel, and the connecting pipe is a hose.

[0010] By adopting the above technical solution, the connecting tube is designed as a soft tube, which is convenient for flexible operation in the blood vessel.

[0011] Optionally, an injection tube is installed on the outer side of the catheter seat, and the injection tube is connected to the injection channel.

[0012] By adopting the above technical solution, the injection tube is connected to the injection channel and can be used to inject conductive liquid into the balloon to expand the balloon.

[0013] Optionally, a delivery tube is installed on the outside of the catheter seat, and the delivery tube is connected to the input channel.

[0014] By adopting the above technical solution, it is possible to input flushing liquid, and perform flushing and suction operations through the flushing hole of the flushing head.

[0015] Optionally, the guide wire is a conductive metal wire, and one end of the guide wire away from the balloon is connected to a connector, and the connector is electrically connected to a high-voltage pulse power supply host.

[0016] By adopting the above technical solution, electric current can be transmitted to generate shock waves.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. By setting up a flushing head, a flushing hole, an input channel and a delivery tube, a flushing mechanism is combined to form a flushing mechanism. During vascular interventional treatment, the flushing mechanism can make the surgical field clear and help remove impurities or residues in the blood vessels when necessary. After the shock wave balloon treats the calcified plaque, if there are more impurities or residues on the inner wall of the blood vessel, the flushing mechanism can be set up for flushing. After flushing, the impurities or residues are absorbed through the flushing hole, thereby further cleaning the blood vessels and reducing the risk of complications; 2. The three channels opened on the sheath are distributed in parallel, and the diameter of the input channel is twice that of the injection channel and the wire-guiding channel. This design not only ensures the smooth input of various liquids required for treatment, but also ensures the stability of the guidewire, thereby improving the safety and efficiency of treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the shock wave balloon of the present invention;

[0020] Figure 2This is a schematic diagram of the three-dimensional structure of the sheath tube of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional connection structure between the flushing head and the connecting pipe of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the balloon of the utility model located at the target point of the blood vessel wall;

[0023] Figure 5 This is a schematic diagram of the structure of the balloon of the utility model fitting the target point of the blood vessel wall;

[0024] Figure 6 This is a structural schematic diagram of the flushing head of the utility model located at the target point on the blood vessel wall.

[0025] In the figure: 1. Sheath; 101. Input channel; 102. Injection channel; 103. Wire feeding channel; 2. Connecting tube; 3. Irrigation head; 4. Balloon; 5. Guide wire; 501. Connector; 6. Discharge unit; 7. Catheter seat; 701. Injection tube; 702. Delivery tube; 8. Irrigation hole. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] like Figure 1 —3, the specific scheme of the embodiment is as follows: a shock wave balloon based on liquid electricity, comprising a sheath tube 1, on which an input channel 101, an injection channel 102 and a wire-travel channel 103 are opened, wherein the input channel 101, the injection channel 102 and the wire-travel channel 103 are arranged in parallel, and the input channel 101, the injection channel 102 and the wire-travel channel 103 are all circular, and the diameter of the input channel 101 is twice the diameter of the injection channel 102 and the wire-travel channel 103. The parallel distribution of the channels realizes functional separation and independence, thereby improving the operating efficiency and stability of the device;

[0029] A connecting tube 2 is provided at one end of the sheath tube 1, and the connecting tube 2 is integrally formed with the sheath tube 1. Both the connecting tube 2 and the sheath tube 1 are made of medical-grade polytetrafluoroethylene (PTFE). Medical-grade polytetrafluoroethylene (PTFE) has good biocompatibility, flexibility and corrosion resistance to ensure safety during surgery and stability in long-term use. The connecting tube 2 is connected to the input channel 101. The connecting tube 2 is a hose. A flushing head 3 is installed at the end of the connecting tube 2 away from the sheath tube 1. The connecting tube 2 serves as a bridge connecting the sheath tube 1 and the flushing head 3. The flushing head 3 is used for flushing and aspiration during surgery to prevent blood or other substances from clogging the channel. At the same time, the design of the flushing head 3 makes flushing more uniform and effective, thereby improving the clarity of the surgical field of view. The diameter of the flushing head 3 is the same as that of the sheath tube 1.

[0030] A balloon 4 is provided between the flushing head 3 and the sheath 1. The polymer material used in the balloon 4 can withstand high-pressure expansion without rupture and has excellent biocompatibility. The balloon 4 can expand the blood vessels during the operation, providing a suitable space for the generation of shock waves. Through the expansion of the balloon 4, the shock waves can act more accurately on the calcified plaques on the blood vessel wall, thereby improving the treatment effect.

[0031] The inner side of the sheath tube 1 is provided with a guide wire 5 that is in contact with the connecting tube 2. The guide wire 5 is provided with an insulating layer. The guide wire 5 is a conductive metal wire. The design of the guide wire 5 makes the generation of shock waves more accurate and controllable, reducing surgical risks. The guide wire 5 is located on the inner side of the wire channel 103, and the guide wire 5 is bonded to the side wall of the connecting tube 2. The end of the guide wire 5 away from the balloon 4 is connected with a connector 501, and the connector 501 is electrically connected to the high-voltage pulse power supply host. A discharge unit 6 connected to the guide wire 5 is installed on the outer side of the connecting tube 2. The discharge unit 6 is annular, and the inner side wall of the discharge unit 6 is electrically connected to the guide wire 5. Under the action of the high-voltage pulse power supply, the discharge unit 6 generates discharge through the guide wire 5, and then generates shock waves under the liquid-electric effect. The discharge unit 6 is several pairs. The design of multiple pairs of discharge units 6 improves the generation efficiency and coverage of shock waves, which helps to more thoroughly break up calcified plaques. The discharge unit 6, connecting tube 2, and guide wire 5 are all located on the inner side of the balloon 4.

[0032] The sheath tube 1 is provided with a catheter seat 7 at one end away from the connecting tube 2. An injection tube 701 is installed on the outside of the catheter seat 7. The injection tube 701 is connected to the injection channel 102. The injection tube 701 is used to inject liquid, and the liquid injected by the injection tube 701 is a conductive liquid. A delivery tube 702 is installed on the outside of the catheter seat 7. The delivery tube 702 is connected to the input channel 101. The delivery tube 702 is used to input flushing liquid and can also absorb the flushing liquid and impurities. The side wall of the flushing head 3 is provided with a plurality of flushing holes 8. The design of the flushing holes 8 makes flushing and absorption more uniform and effective, thereby improving the safety and success of the operation.

[0033] The operating steps of the above-mentioned electrohydraulic shock wave balloon are as follows:

[0034] The sheath tube 1 together with the balloon 4 is delivered through the blood vessels to the target treatment area through a special channel, such as Figure 4 As shown;

[0035] Use the injection tube 701 to inject conductive liquid into the balloon 4. The conductive liquid flows into the balloon 4 through the injection channel 102, causing the balloon 4 to gradually expand and adhere to the blood vessel wall. Figure 5 As shown;

[0036] Start the high-voltage pulse power supply host to generate high-voltage pulse current;

[0037] The current is transmitted to the discharge unit 6 through the guide wire 5, and the discharge unit 6 generates a shock wave under the hydroelectric effect;

[0038] The shock wave is transmitted to the surrounding of the balloon 4 through the conductive liquid, acting on the calcified plaque on the blood vessel wall to perform fragmentation treatment;

[0039] After the crushing treatment, the conductive liquid inside the balloon 4 is discharged to restore the balloon 4 to its original shape, and the sheath tube 1 is pulled back so that the flushing head 3 is located in the target treatment area, such as Figure 6 As shown;

[0040] Inject flushing liquid into the input channel 101 through the delivery tube 702, and use the flushing holes 8 on the flushing head 3 to flush the surgical area to remove debris and other impurities;

[0041] After flushing is completed, the flushing liquid and its debris and other impurities are sucked out through the suction equipment;

[0042] After the absorption is completed, stop the high-voltage pulse power supply host and close all liquid channels;

[0043] The sheath tube 1 and related components are withdrawn from the patient's body.

[0044] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shock wave balloon based on liquid electricity, characterized by: The invention comprises a sheath tube (1), wherein one end of the sheath tube (1) is provided with a connecting tube (2), an end of the connecting tube (2) away from the sheath tube (1) is provided with a flushing head (3), a balloon (4) is provided between the flushing head (3) and the sheath tube (1), the inner side of the sheath tube (1) is provided with a guide wire (5) in contact with the connecting tube (2), the outer side of the connecting tube (2) is provided with a discharge unit (6) connected to the guide wire (5), and the discharge unit (6) is provided in pairs, the end of the sheath tube (1) away from the connecting tube (2) is provided with a catheter seat (7), and the side wall of the flushing head (3) is provided with a plurality of flushing holes (8).

2. The electrohydraulic shock wave balloon according to claim 1, characterized in that: The sheath tube (1) is provided with an input channel (101), an injection channel (102) and a wire-travel channel (103); the input channel (101), the injection channel (102) and the wire-travel channel (103) are arranged in parallel; the diameter of the input channel (101) is twice the diameter of the injection channel (102) and the wire-travel channel (103).

3. The electrohydraulic shock wave balloon according to claim 2, characterized in that: The connecting pipe (2) is in communication with the input channel (101), and the connecting pipe (2) is a flexible pipe.

4. The electrohydraulic shock wave balloon according to claim 2, characterized in that: An injection tube (701) is installed on the outside of the catheter seat (7), and the injection tube (701) is in communication with the injection channel (102).

5. The electrohydraulic shock wave balloon according to claim 2, characterized in that: A delivery tube (702) is installed on the outside of the catheter seat (7), and the delivery tube (702) is in communication with the input channel (101).

6. The electrohydraulic shock wave balloon according to claim 1, characterized in that: The guide wire (5) is a conductive metal wire. One end of the guide wire (5) away from the balloon (4) is connected to a connector (501), and the connector (501) is electrically connected to a high-voltage pulse power supply host.

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