Temperature control device and intravascular shockwave therapy apparatus

Abstract

The application provides a temperature control device and an intravascular shock wave treatment device, and relates to the technical field of medical devices, and comprises a balloon. A temperature sensor is arranged in the head of the balloon. A liquid inlet pipe is arranged in the balloon. A protection pipe is arranged between the liquid inlet pipe and the balloon. A liquid flow cavity is formed between the liquid inlet pipe and the protection pipe. The side wall of the liquid inlet pipe is provided with a plurality of liquid outlet holes in a ring array. A reflux pipe is arranged in the liquid flow cavity. The temperature sensor can be used for detecting the temperature in the balloon in real time, so that effective cooling measures can be taken. The liquid inlet pipe and the liquid flow cavity can be used for rapidly cooling the balloon, preventing the blood vessel from being damaged due to high temperature, and realizing cooling treatment without affecting the operation progress.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, to a temperature control device and an intravascular shockwave therapy device. Background Technology

[0002] Cardiovascular stenosis refers to the narrowing of blood vessels in the body, including the coronary arteries, peripheral blood vessels, and intracranial blood vessels, due to abnormal lipid metabolism. Lipids in the blood deposit on the originally smooth inner lining of the blood vessels, gradually accumulating into atherosclerotic lipid plaques. Over time, these plaques increase in number and may even calcify, causing narrowing of the blood vessel lumen, obstructing blood flow, and leading to ischemia in downstream blood vessels and the body, resulting in corresponding clinical manifestations. If the stenosis occurs in the coronary arteries, it can cause palpitations, chest pain, shortness of breath, and angina pectoris; in severe cases, it can lead to insufficient blood supply to the myocardium or myocardial necrosis. If it occurs in the peripheral blood vessels, it can cause decreased skin temperature, muscle atrophy, intermittent claudication, or even necrosis or amputation of distal limbs. If it occurs in the intracranial blood vessels, it can cause dizziness, syncope, and even brain tissue damage and brain dysfunction.

[0003] In recent years, for intravascular calcified plaques, especially severe calcified plaques, a shock wave generator is placed inside the balloon. High-voltage pulses are applied to the electrodes of the shock wave generator to form a shock wave. The shock wave is transmitted to the calcified lesion site, and repeated pulses can destroy the calcified plaque without damaging the surrounding soft tissue.

[0004] For example, in the shockwave balloon therapy device and cardiovascular treatment apparatus disclosed in Chinese patent application number 202222342634.8, the release of electrode energy during treatment causes the balloon at the tip of the catheter to heat up. When the temperature rises too high, it can damage the target tissue, thereby affecting the surgery. Summary of the Invention

[0005] To overcome the shortcomings of existing methods, this application provides a temperature control device and an intravascular shockwave therapy device, which can solve the problem that during treatment, the release of electrode energy causes the balloon at the tip of the catheter to heat up. When the temperature rises too high, it can damage the target tissue and thus affect the surgery.

[0006] On the one hand, the technical solution adopted by the embodiments of this application to solve its technical problem is: a temperature control device and an intravascular shock wave therapy device, including a balloon.

[0007] A temperature sensor is installed inside the head of the balloon, and a liquid inlet conduit is provided inside the balloon. A protective conduit is also provided between the liquid inlet conduit and the balloon. A liquid flow chamber is formed between the liquid inlet conduit and the protective conduit. Several liquid outlet holes are arranged in a ring array on the side wall of the liquid inlet conduit. A return pipe is provided inside the liquid flow chamber.

[0008] In one specific implementation, each of the liquid outlet holes is inclined.

[0009] In one specific implementation, a medical sponge layer is attached to one end of the inlet conduit inside the liquid flow cavity.

[0010] In one specific implementation, an installation cavity is formed between the protective catheter and the balloon, and the temperature sensor is installed inside the installation cavity.

[0011] In one specific implementation, an electrode pair is also installed inside the mounting cavity.

[0012] In one specific implementation, the balloon is connected to a connecting catheter, and the inlet catheter is located inside the connecting catheter.

[0013] In one specific implementation, the reflux tube is located inside the connecting conduit.

[0014] On the other hand, embodiments of this application also provide an intravascular shockwave therapy device. Including...

[0015] The aforementioned temperature control device and energy generation and control device, wherein the balloon is connected to the energy generation and control device.

[0016] The advantages of the embodiments of this application are:

[0017] 1. By setting up a temperature sensor, the temperature inside the balloon can be detected in real time, so that effective cooling measures can be taken.

[0018] 2. By combining the inlet catheter and the fluid flow chamber, the inside of the balloon can be cooled rapidly to prevent damage to blood vessels due to excessive temperature, and cooling can be achieved without affecting the progress of the operation. Attached Figure Description

[0019] Figure 1 A schematic diagram of the temperature control device and intravascular shockwave therapy equipment provided for embodiments of this application;

[0020] Figure 2 A schematic diagram of the temperature control device provided in the embodiments of this application;

[0021] Figure 3 A schematic diagram of the inlet conduit structure provided for an embodiment of this application;

[0022] Figure 4 Provided for the implementation of this application Figure 2 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1-Balloon; 2-Medical sponge layer; 3-Temperature sensor; 4-Inlet catheter; 41-Outlet port; 5-Return tube; 6-Protective catheter; 7-Electrode pair; 8-Liquid flow chamber; 9-Connecting catheter. Detailed Implementation

[0024] The technical solution in this application embodiment addresses the problem that during treatment, the release of electrode energy causes the balloon 1 at the tip of the catheter to heat up. When the temperature rises too high, it can damage the target tissue, thus affecting the surgery. The overall approach is as follows:

[0025] Please see Figures 1-4 A temperature control device and an intravascular shockwave therapy device, including a balloon 1.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A temperature sensor 3 is installed inside the head of the balloon 1. A liquid inlet conduit 4 is also installed inside the balloon 1. Specifically, a liquid supply assembly is located on one side of the energy generation and control device. The liquid supply assembly includes a liquid supply tank containing cooling liquid. A circulation pump is installed outside the liquid supply tank. The outlet pipe of the circulation pump is connected to the liquid inlet conduit 4, and the inlet end of the circulation pump is connected to the inside of the liquid supply tank. A return pipe 5 is connected to the liquid supply tank. The circulation pump is electrically connected to the energy generation and control device, and the temperature sensor 3 is also electrically connected to the energy generation and control device. This allows the temperature sensor 3 to transmit a signal to the energy generation and control device, which then controls the switching of the circulation pump, thereby achieving automatic cooling. A protective conduit 6 is also installed between the liquid inlet conduit 4 and the balloon 1, forming a liquid flow chamber 8. The sidewall of the liquid inlet conduit 4 has several outlet holes 41 arranged in a ring array. A return pipe 5 is installed inside the liquid flow chamber 8. The procedure involves connecting catheter 9 to an energy generator and controller. The balloon 1 end of catheter 9 is then inserted into the vascular lesion site. The energy generator and controller activates the electrode pair 7 inside the balloon 1 to impact and break up the calcified areas within the blood vessel. During treatment, temperature sensor 3 monitors the surrounding environment in real time. If the temperature becomes too high due to energy generated by electrode pair 7, temperature sensor 3 transmits the cooling signal to the energy generator and controller. The energy generator and controller then activates the fluid supply assembly, delivering cooling fluid to the inlet catheter 4. The cooling fluid flows through the outlet 41 into the fluid flow chamber 8, thus achieving cooling. Excess cooling fluid is returned to the fluid supply assembly via the return pipe 5. When temperature sensor 3 detects a temperature drop, the energy generator and controller shuts down the fluid supply assembly, stopping the delivery of cooling fluid. The remaining cooling fluid is then returned through the return pipe 5. The temperature sensor 3 allows for real-time monitoring of the temperature inside the balloon 1, enabling effective cooling measures to be taken. By combining the inlet catheter 4 and the fluid flow chamber 8, the inside of the balloon 1 can be cooled rapidly to prevent damage to blood vessels due to excessive temperature. Cooling can be achieved without affecting the progress of the operation.

[0027] In one specific implementation, each outlet hole 41 is inclined. This inclined arrangement of the outlet holes 41 allows the cooling fluid to flow out more slowly, reducing the impact of cooling fluid fluctuations on the treatment of the lesion site during electric shock.

[0028] In one specific implementation, a medical sponge layer 2 is fitted inside the liquid flow chamber 8, attached to one end of the liquid inlet conduit 4. This reduces fluctuations in the cooling fluid while simultaneously lowering the temperature, thus preventing any impact on the therapeutic effect of the electrode pair 7 on the lesion site.

[0029] In one specific implementation, a mounting cavity is formed between the protective catheter 6 and the balloon 1, and the temperature sensor 3 is mounted inside the mounting cavity. An electrode pair 7 is also mounted inside the mounting cavity. The mounting cavity protects the electrode pair 7 and the temperature sensor 3 from contact with the cooling fluid.

[0030] In one specific implementation, the balloon 1 is connected to a connecting conduit 9, and the inlet conduit 4 is located inside the connecting conduit 9. The connecting conduit 9 is connected to an energy generation and control device to realize the shock wave from the electrode pair 7.

[0031] In one specific implementation, the reflux pipe 5 is located inside the connecting conduit 9. This facilitates the recycling of the cooling fluid.

[0032] Please see Figures 1-4 This application also provides an intravascular shockwave therapy device. It includes the aforementioned temperature control device and energy generator and controller. Specifically, the specific structure, internal electronic components, and operating principle of the energy generator and controller are existing technologies and will not be described in detail here. A balloon 1 is connected to the energy generator and controller. The balloon 1 is inserted into the vascular lesion to destroy the calcified area.

[0033] When this application is used:

[0034] Connect catheter 9 to the energy generator and controller. Then, insert balloon 1 of catheter 9 into the vascular lesion site. Activate the energy generator and controller so that electrode pair 7 inside balloon 1 impacts and breaks up the calcified areas inside the blood vessel. During treatment, temperature sensor 3 monitors the surrounding environment in real time. If the temperature becomes too high due to energy generated by electrode pair 7, temperature sensor 3 transmits the cooling signal to the energy generator and controller. The energy generator and controller then activates the fluid supply assembly, delivering cooling fluid to inlet catheter 4. The cooling fluid flows into the fluid flow chamber 8 through outlet hole 41, thus achieving cooling. Excess cooling fluid flows back to the fluid supply assembly through return pipe 5. When temperature sensor 3 detects that the temperature has dropped, the energy generator and controller shuts down the fluid supply assembly, stopping the delivery of cooling fluid. The remaining cooling fluid is then returned through return pipe 5. By using temperature sensor 3, the temperature inside balloon 1 can be monitored in real time to take effective cooling measures. By combining the inlet catheter 4 and the fluid flow chamber 8, the inside of the balloon 1 can be cooled rapidly to prevent damage to blood vessels due to excessive temperature. Cooling can be achieved without affecting the progress of the operation.

[0035] In summary, this application, through the setting of temperature sensor 3, can detect the temperature inside balloon 1 in real time, so as to take effective cooling measures. With the cooperation of inlet catheter 4 and liquid flow chamber 8, the inside of balloon 1 can be cooled rapidly to prevent damage to blood vessels due to excessive temperature, and cooling can be achieved without affecting the progress of the operation.

[0036] It should be noted that the specific model and specifications of the temperature sensor 3 and the energy generation and controller device need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0037] The power supply and operating principle of the temperature sensor 3 and the energy generation and controller device are clear to those skilled in the art and will not be described in detail here.

[0038] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A temperature control device, characterized in that, include A balloon (1) is provided with a temperature sensor (3) installed inside the head of the balloon (1). An inlet conduit (4) is provided inside the balloon (1). A protective conduit (6) is also provided between the inlet conduit (4) and the balloon (1). A liquid flow chamber (8) is formed between the inlet conduit (4) and the protective conduit (6). Several outlet holes (41) are arranged in a ring array on the side wall of the inlet conduit (4). A return pipe (5) is provided inside the liquid flow chamber (8).

2. The temperature control device as described in claim 1, characterized in that, Each of the liquid outlet holes (41) is inclined.

3. The temperature control device as described in claim 1, characterized in that, A medical sponge layer (2) is attached to one end of the liquid inlet conduit (4) inside the liquid flow chamber (8).

4. The temperature control device as described in claim 1, characterized in that, An installation cavity is formed between the protective catheter (6) and the balloon (1), and the temperature sensor (3) is installed inside the installation cavity.

5. The temperature control device as described in claim 4, characterized in that, Electrode pairs are also installed inside the mounting cavity (7).

6. The temperature control device as described in claim 1, characterized in that, The balloon (1) is connected to a connecting catheter (9), and the inlet catheter (4) is located inside the connecting catheter (9).

7. The temperature control device as described in claim 6, characterized in that, The return pipe (5) is located inside the connecting conduit (9).

8. An intravascular shockwave therapy device, characterized in that, include The temperature control device according to any one of claims 1-7, and An energy generation and control device, wherein the balloon (1) is connected to the energy generation and control device.

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