Multi-channel shock wave balloon catheter

Abstract

The multi-channel shock wave balloon catheter comprises a catheter body, a plurality of sets of annularly-formed grooves are formed in the circumferential face of one end of the catheter body, balloons are fixedly connected to the inner walls of the bottoms of the grooves, and a liquid injection assembly for injecting a solution into the balloons is arranged in the catheter body; a plurality of groups of annular grooves are formed in the circumferential surface of one end of the catheter, the balloon is fixedly connected in the annular grooves, and a discharging assembly used for applying high-voltage pulses to a solution in the balloon to enable the solution to generate shock waves is arranged in the balloon. And shock wave treatment can be carried out on a focus from multiple directions.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multi-channel shock wave balloon catheter.

[0002] As heart disease patients age and the disease progresses, plaques in the peripheral blood vessels and coronary arteries gradually calcify. This bone-like structure can cause vascular narrowing, reduce vascular blood flow, and may eventually lead to complete vascular occlusion.

[0003] At present, a Chinese patent with announcement number CN219700041U discloses a shock wave balloon catheter device, including a catheter, a balloon sealed around the outer periphery of the catheter, an electrode assembly arranged on the outer periphery of the catheter and located in the balloon, and a wire for transmitting voltage to the electrode assembly; the balloon can be filled with liquid; when the voltage is transmitted to the electrode assembly through the wire, the electrode assembly can generate a discharge arc in the liquid in the balloon; a wiring through hole is provided on the outer peripheral wall of the electrode assembly; the inner wall of the wiring through hole, the outer peripheral wall of the electrode assembly, the proximal end face of the electrode assembly and the inner peripheral wall of the electrode assembly constitute a winding part; the wire is wound and connected to the winding part. In this embodiment, a wiring through hole is provided on the outer peripheral wall of the electrode assembly; the inner wall of the wiring through hole, the outer peripheral wall of the electrode assembly, the proximal end face of the electrode assembly and the inner peripheral wall of the electrode assembly constitute a winding part; the wire is wound and connected to the winding part, so that the connection between the wire and the electrode assembly is firm and not easy to fall off.

[0004] The above-mentioned shock wave balloon catheter device still has some problems in use, and it is not possible to perform shock wave treatment on the lesion from multiple directions. Summary of the invention

[0005] The object of the present invention is to provide a multi-channel shock wave balloon catheter to solve the problem in the above-mentioned background technology that the lesion cannot be treated with shock waves from multiple directions.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A multi-channel shock wave balloon catheter comprises a catheter, wherein a plurality of groups of annular grooves are provided on the circumferential surface of one end of the catheter, balloons are fixedly connected to the bottom inner walls of the grooves, an injection component for injecting a solution into the balloon is provided inside the catheter, and a discharge component for applying a high voltage pulse to the solution in the balloon so that the solution generates a shock wave is provided inside the balloon.

[0008] Preferably, the injection assembly includes a one-to-four-joint connector arranged inside the catheter, the input end of the one-to-four-joint connector is connected to a connecting tube, one end of the connecting tube passes through the catheter outward and is connected to an injection head, and the output ends of the one-to-four-joint connector are respectively connected to connecting tubes, and the connecting tubes extend respectively to the balloons at corresponding positions and are connected to the interior of the balloons at corresponding positions.

[0009] Preferably, the discharge component includes a power supply host, which is arranged at the other end of the catheter, and the output end of the power supply host is connected to the same number of wires as the balloon, the other ends of the wires respectively penetrate the catheter and are sealed and plugged into the inner wall of the balloon, and the other ends of the wires are respectively fixedly connected to the lower surface of the balloon at the corresponding side position close to the catheter end, and the surface of the wires located inside the balloon are respectively connected to a plurality of groups of discharge units, and an adjustment component for adjusting the distance between the discharge unit and the lesion is provided inside the balloon.

[0010] Preferably, the adjustment component includes an insulating limit ring, which is sleeved on the middle surface of the wire inside the balloon, and the top of the insulating limit ring is fixedly connected to a spring, and the top of the spring is fixedly connected to the top inner wall of the balloon, and the other end of the catheter is provided with an adjustment piece for adjusting the tightness of the wire.

[0011] Preferably, the adjusting member includes a connecting disk fixedly connected to the other end of the catheter, and circular holes are provided on the surface of the connecting disk and at positions corresponding to the wires, and threaded tubes are respectively inserted into the inner cavities of the circular holes, and the threaded tubes are respectively fixedly sleeved on the surfaces of the wires at corresponding positions, and hand nuts are respectively threadedly connected to the ends of the threaded tubes, and one side of the hand nuts is tightly attached to the surface of the connecting disk, and the inner cavities of the circular holes are provided with limiting members for limiting the moving direction of the threaded tubes.

[0012] Preferably, the limiting member includes limiting grooves respectively opened on the top of the threaded tube, the inner cavity of the circular hole and the positions corresponding to the limiting grooves are fixedly connected to limiting blocks, and the inner cavity of the limiting grooves is slidably connected to the surface of the limiting blocks at the corresponding positions.

[0013] Preferably, the mouths of the circular holes are respectively inlaid with bearings, and the inner rings of the bearings are respectively fixedly connected to the surfaces of the hand nuts at the corresponding positions.

[0014] Preferably, a handle is fixedly connected to the bottom of the catheter near the other end.

[0015] Preferably, folding lines are respectively provided on both sides of the balloon.

[0016] Preferably, one end of the conduit is arranged at a chamfered angle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention, through the setting of the discharge component, a plurality of groups of annular grooves opened on the circumferential surface of one end of the catheter and the balloons fixedly connected therein, combined with the injection component and the discharge component, can realize shock wave treatment of lesions from multiple directions. At the same time, multiple balloons are arranged around the end of the catheter, which can make the generated shock waves cover a wider area. Compared with the single-direction impact method, the treatment effect on complex-shaped or dispersed lesions is improved, and the treatment blind spots are reduced.

[0019] 2. The present invention adjusts the setting of the component, twists the hand-tightened nut, and utilizes the principle of threaded transmission to move the threaded tube, thereby changing the tightness of the wire, and with the cooperation of the spring, the distance between the discharge unit and the lesion can be changed. During the treatment process, the doctor can flexibly adjust the position of the discharge unit according to the actual situation of the lesion, such as depth, size, etc., so that the energy of the shock wave can act on the lesion at the optimal distance, improve energy utilization efficiency, enhance the treatment effect, and reduce damage to surrounding normal tissues.

[0020] 3. The present invention sets folding lines on both sides of the balloon so that the balloon can be easily folded when not expanded, which is beneficial to the storage and storage of the device. During the process of inserting the catheter into the human body, the folded balloon can reduce the overall outer diameter, making it easier to pass through some narrow human passages or cavities, thereby reducing the difficulty of operation and improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the multi-channel shock wave balloon catheter of the present invention;

[0022] Figure 2 is a schematic cross-sectional structural diagram of the catheter of the present invention;

[0023] Figure 3 It is a schematic cross-sectional structural diagram of the connection disk of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the threaded pipe of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the balloon of the present invention.

[0026] In the figure:

[0027] 100, catheter; 101, groove; 102, handle; 103, connection plate;

[0028] 200, balloon; 201, folding line;

[0029] 300, injection head; 301, connecting pipe; 302, one-to-four joints; 303, connecting pipe;

[0030] 400, wire; 401, discharge unit; 402, power supply host;

[0031] 500, hand-tightened nut; 501, round hole; 502, threaded tube; 503, bearing; 505, limit block; 506, limit groove;

[0032] 600. Spring. 601. Insulating limit ring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-5 The present embodiment provides a multi-channel shock wave balloon catheter, including a catheter 100, a plurality of groups of annular grooves 101 are provided on the circumferential surface of one end of the catheter 100, and a balloon 200 is fixedly connected to the bottom inner wall of the groove 101. An injection component for injecting a solution into the balloon 200 is provided inside the catheter 100, and a discharge component for applying a high voltage pulse to the solution in the balloon 200 to generate a shock wave. Through the setting of the discharge component, the plurality of groups of annular grooves 101 provided on the circumferential surface of one end of the catheter 100 and the balloon 200 fixedly connected therein, combined with the injection component and the discharge component, can realize shock wave treatment of lesions from multiple directions. At the same time, multiple balloons 200 are arranged around the end of the catheter 100, so that the generated shock wave can cover a wider area. Compared with the single-direction shock method, the treatment effect on complex-shaped or dispersed lesions is improved, and the treatment dead angle is reduced.

[0035] Furthermore, the injection assembly includes a one-to-four joint 302 arranged inside the catheter 100, the input end of the one-to-four joint 302 is connected to a connecting tube 301, one end of the connecting tube 301 penetrates the catheter 100 outward and is connected to an injection head 300, wherein the injection head 300 is a Luer joint, and the output ends of the one-to-four joint 302 are respectively connected to connecting tubes 303, and the connecting tubes 301 extend to the balloons 200 at corresponding positions and are connected to the interiors of the balloons 200 at corresponding positions. Through the setting of the injection assembly, the one-to-four joint 302 in the injection assembly can evenly distribute the solution introduced from the injection head 300 to the four connecting tubes 303, and then accurately inject each balloon 200, thereby ensuring the consistency of the expansion degree of each balloon 200, avoiding deviations in the intensity and direction of the shock wave generated due to uneven expansion of the balloon 200, and ensuring that the shock waves in each direction during the treatment process can stably and effectively act on the lesion.

[0036] Furthermore, the discharge component includes a power supply host 402, which is arranged at the other end of the catheter 100, and the output ends of the power supply host 402 are respectively connected to the same number of wires 400 as the balloon 200, and the other ends of the wires 400 respectively penetrate the catheter 100 and are sealed and plugged into the inner wall of the balloon 200, and the other ends of the wires 400 are respectively fixedly connected to the lower surface of the balloon 200 at the corresponding side position close to the end of the catheter 100, and the surfaces of the wires 400 located inside the balloon 200 are respectively connected to several groups of discharge units 401, and the inside of the balloon 200 is provided with an adjustment component for adjusting the distance between the discharge unit 401 and the lesion. Through the setting of the discharge component, each balloon 200 can be used as an independent shock wave generating unit, which can accurately generate shock waves according to the specific position and shape of the lesion, thereby improving the pertinence and effectiveness of the treatment.

[0037] The working principle of the discharge component is prior art, and please refer to the discharge wire component in the shock wave balloon 200 catheter 100 with publication number CN217390809U, and the rest will not be described in detail.

[0038] Preferably, the adjustment component includes an insulating limit ring 601, which is sleeved on the middle surface of the wire 400 located inside the balloon 200, and the top of the insulating limit ring 601 is fixedly connected to a spring 600, and the top of the spring 600 is fixedly connected to the top inner wall of the balloon 200. The other end of the catheter 100 is provided with an adjustment member for adjusting the tightness of the wire 400, and the adjustment member includes a connecting disk 103 fixedly connected to the other end of the catheter 100, and the surface of the connecting disk 103 and the position corresponding to the wire 400 are provided with circular holes 501, and the inner cavities of the circular holes 501 are respectively inserted with threaded tubes 502, and the threaded tubes 502 are respectively fixedly sleeved on the surface of the wire 400 at the corresponding position, and the ends of the threaded tubes 502 are respectively threaded A hand-tightened nut 500 is connected, one side of which is in close contact with the surface of the connecting plate 103. The inner cavity of the circular hole 501 is provided with a limiter for limiting the moving direction of the threaded tube 502. By adjusting the setting of the component, the hand-tightened nut 500 is turned, and the threaded tube 502 is moved by utilizing the principle of thread transmission, thereby changing the tightness of the wire 400. In addition, with the cooperation of the spring 600, the distance between the discharge unit 401 and the lesion can be changed. During the treatment process, the doctor can flexibly adjust the position of the discharge unit 401 according to the actual situation of the lesion, such as depth, size, etc., so that the energy of the shock wave can act on the lesion at the optimal distance, thereby improving the energy utilization efficiency, enhancing the treatment effect and reducing the damage to the surrounding normal tissues.

[0039] It is worth noting that the limiting members include limiting grooves 506 respectively opened on the top of the threaded tube 502, the inner cavity of the circular hole 501 and the position corresponding to the limiting groove 506 are fixedly connected to the limiting block 505, and the inner cavity of the limiting groove 506 is slidably connected to the surface of the limiting block 505 at the corresponding position. Through the setting of the limiting member, the threaded tube 502 is prevented from unnecessary rotation or displacement when the hand-tightening nut 500 is tightened, thereby ensuring the stability and reliability of the adjustment process, allowing the doctor to more accurately control the tightness of the wire 400, and thus better adjust the position of the discharge unit 401.

[0040] Furthermore, the mouth of the circular hole 501 is respectively inlaid with a bearing 503, and the inner ring of the bearing 503 is respectively fixedly connected to the surface of the hand nut 500 at the corresponding position. Through the setting of the bearing 503, the hand nut 500 can be more easily twisted during the process of adjusting the tightness of the wire 400, thereby reducing the friction during operation.

[0041] Furthermore, a handle 102 is fixedly connected to the bottom of the catheter 100 near the other end. Through the setting of the handle 102, the user can better control the position and direction of the catheter 100, improve the accuracy and stability of the operation, and ensure the smooth progress of the treatment process.

[0042] Preferably, folding lines 201 are respectively provided on both sides of the balloon 200. Through the setting of the folding lines 201, the folding lines 201 set on both sides of the balloon 200 allow the balloon 200 to be conveniently folded when not inflated, which is beneficial to the storage and storage of the device. During the process of inserting the catheter 100 into the human body, the folded balloon 200 can reduce the overall outer diameter, making it easier to pass through some narrow human passages or cavities, thereby reducing the difficulty of operation and improving the applicability of the device.

[0043] It is worth noting that one end of the catheter 100 is set at a chamfered angle, which helps the catheter 100 to be inserted into the human body more smoothly.

[0044] Working principle:

[0045] First, the solution is introduced into the connecting tube 301 through the injection head 300 by a syringe. The solution reaches the one-to-four joint 302 through the connecting tube 301. The one-to-four joint 302 will evenly distribute the solution to the four connecting tubes 303, and then transport them to the corresponding balloons 200 respectively, ensuring that each balloon 200 can be injected with the solution simultaneously and evenly, so that it can expand to a suitable state to prepare for the subsequent generation of shock waves.

[0046] After the power supply host 402 is turned on, the current is transmitted to the discharge unit 401 inside the balloon 200 through the wire 400. Under the action of the high-voltage pulse, the discharge unit 401 will cause the solution in the balloon 200 to undergo physical changes such as ionization instantly, thereby generating a powerful shock wave. At the same time, each balloon 200 has an independent wire 400 and discharge unit 401, so shock waves can be generated at different positions at the same time, thereby achieving multi-angle shock treatment of the lesion.

[0047] When the distance from the lesion needs to be changed, the hand-tightening nut 500 is loosened to reduce the tension of the wire 400. At the same time, the spring 600 pulls the insulating limit ring 601 upward. The movement of the insulating limit ring 601 will change the position of the discharge unit 401 inside the balloon 200, thereby adjusting the distance between the discharge unit 401 and the lesion. When the discharge unit 401 needs to be moved away from the lesion, the hand-tightening nut 500 is tightened to move the threaded tube 502 outward to tighten the wire 400, and the two ends of the spring 600 are extended upward and downward respectively, thereby moving the discharge unit 401 away from the lesion.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel shock wave balloon catheter, characterized in that: The invention comprises a catheter (100), wherein a plurality of groups of grooves (101) arranged in an annular shape are formed on the circumferential surface of one end of the catheter (100), a balloon (200) is fixedly connected to the inner wall of the bottom of each groove (101), an injection component for injecting a solution into the balloon (200) is arranged inside the catheter (100), and a discharge component for applying a high voltage pulse to the solution in the balloon (200) so that the solution generates a shock wave is arranged inside the balloon (200).

2. A multi-channel shock wave balloon catheter according to claim 1, characterized in that; The injection assembly comprises a one-to-four-joint (302) arranged inside the catheter (100); the input end of the one-to-four-joint (302) is connected to a connecting tube (301); one end of the connecting tube (301) penetrates the catheter (100) outwardly and is connected to an injection head (300); the output ends of the one-to-four-joint (302) are respectively connected to connecting tubes (303); the connecting tubes (301) respectively extend to the balloons (200) at corresponding positions and are connected to the interior of the balloons (200) at corresponding positions.

3. A multi-channel shock wave balloon catheter according to claim 1, characterized in that: The discharge component comprises a power supply main unit (402), the power supply main unit (402) is arranged at the other end of the catheter (100), the output end of the power supply main unit (402) is respectively connected to the same number of wires (400) as the balloon (200), the other end of the wire (400) respectively penetrates the catheter (100) and is sealed and plugged into the inner wall of the balloon (200), the other end of the wire (400) is respectively fixedly connected to the lower surface of one side of the balloon (200) at the corresponding side position close to the end of the catheter (100), the surface of the wire (400) located inside the balloon (200) is respectively connected to a plurality of groups of discharge units (401), and an adjustment component for adjusting the distance between the discharge unit (401) and the lesion is arranged inside the balloon (200).

4. A multi-channel shock wave balloon catheter according to claim 3, characterized in that: The adjustment component includes an insulating limit ring (601), which is sleeved on the middle surface of the wire (400) located inside the balloon (200), and the top of the insulating limit ring (601) is fixedly connected to a spring (600), and the top of the spring (600) is fixedly connected to the top inner wall of the balloon (200). The other end of the catheter (100) is provided with an adjustment member for adjusting the tightness of the wire (400).

5. A multi-channel shock wave balloon catheter according to claim 4, characterized in that: The adjusting member comprises a connecting plate (103) fixedly connected to the other end of the catheter (100); a circular hole (501) is provided on the surface of the connecting plate (103) and at a position corresponding to the wire (400); a threaded tube (502) is inserted into the inner cavity of the circular hole (501); the threaded tube (502) is fixedly sleeved on the surface of the wire (400) at the corresponding position; a hand nut (500) is threadedly connected to the end of the threaded tube (502); one side of the hand nut (500) is tightly attached to the surface of the connecting plate (103); and a limiting member for limiting the moving direction of the threaded tube (502) is provided in the inner cavity of the circular hole (501).

6. A multi-channel shock wave balloon catheter according to claim 5, characterized in that: The limiting member comprises limiting grooves (506) respectively opened at the top of the threaded tube (502); the inner cavity of the circular hole (501) and the position corresponding to the limiting groove (506) are fixedly connected to the limiting block (505); the inner cavity of the limiting groove (506) is slidably connected to the surface of the limiting block (505) at the corresponding position.

7. A multi-channel shock wave balloon catheter according to claim 5, characterized in that: The mouths of the circular holes (501) are respectively inlaid with bearings (503), and the inner rings of the bearings (503) are respectively fixedly connected to the surfaces of the hand nuts (500) at corresponding positions.

8. The multi-channel shock wave balloon catheter according to claim 1, characterized in that: A handle (102) is fixedly connected to the bottom of the catheter (100) near the other end.

9. The multi-channel shock wave balloon catheter according to claim 1, characterized in that: Folding lines (201) are respectively provided on both sides of the balloon (200).

10. A multi-channel shock wave balloon catheter according to any one of claims 1 to 9, characterized in that: One end of the conduit (100) is arranged at a chamfered angle.

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